Shutdown SSL on close.

instead summarize the number of users that received it.

.gitignore

@@ -0,0 +1,8 @@
+*~
+*.[oa]
+*.exe
+*.gch
+uhub-admin
+adcrush
+uhub
+

AUTHORS

@@ -0,0 +1,6 @@
+Authors of uHub
+===============
+
+Jan Vidar Krey, Design and implementation
+E_zombie, Centos/RedHat customization scripts and heavy load testing
+

BSDmakefile

@@ -0,0 +1,8 @@
+
+GMAKE=gmake
+
+all:
+	@${GMAKE} ${.TARGETS}
+
+${.TARGETS}: all
+

BUGS

@@ -0,0 +1,2 @@
+Bugs are tracked on: http://bugs.extatic.org/
+

COPYING

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

ChangeLog

@@ -0,0 +1,195 @@
+0.3.3:
+- Fix SSL/TLS related memory leak.
+- Fix 100% CPU issue with SSL connections.
+- Added option to redirect from adc:// to adcs:// if tls is required.
+- Added more informative error messages for the configuration file parser.
+- Made sure logs can be rotated by sending a SIGHUP to the hub
+- Fix bug #139: Unable to use TLS - due to not handling quotes around configuration strings.
+- Fix bug #136 - !broadcast does not report status back to to sender.
+
+
+0.3.2:
+- Fixed bugs in the kqueue network backend (OSX/BSD)
+- Rewrote the configuration backend code.
+- Added support for escaping characters in the configuration files.
+- Updated the !broadcast command to send private messages instead of main chat messages.
+- Adding support for redirecting clients to other hubs when they fail to log in.
+- Fix some out of memory related crashes.
+- Fixed minor memory leaks.
+
+
+0.3.1:
+- Fixed bug where !getip did not work.
+- Added flood control configuration options.
+- Added configuration options to disallow old/obsolete ADC clients.
+- Fixed crash bugs, an freezes.
+- SSL/TLS fix for tls_require configuration option.
+- Fixed disconnect messages, so that clients can interpret them.
+- Fixed bugs where share limits could be circumvented.
+- Added support for listening to multiple ports.
+- kqueue backend for Mac OS X, and BSD systems.
+
+
+0.3.0:
+- More user commands: ban, broadcast, mute, rules, history, myip, whoip, log
+- Experimental SSL support
+- Large rewrite of the network stack in order to support SSL.
+- Added rule file for defining hub rules.
+- Many crash fixes and other important bug fixes.
+- Optimizations: O(1) timeout scheduler
+- New sid allocation code.
+- Added configurable server_listen_backlog (default 50).
+- Added init.d scripts for RedHat/CentOS
+
+
+0.2.8:
+- Fix bug #13: getsockname() failure, use sockaddr from accept() instead.
+- Fix bug #10: Improve logging, ensure logs are machine readable.
+- Fix bug #12: asserts in adc_msg_parse -> enabled strict utf8 parsing.
+
+
+0.2.7:
+- Fixed a nasty crash (bug #11), Thanks Toast for finding it.
+- Fix bug #9 - net_get_peer_address() failure on CentOS/Xen configurations.
+- Write a log message if an operator reloads the config file.
+- Don't print OK or ERROR when using '-s' or '-S' show the configuration.
+- Cleanup credential string handling
+- Made sure "!help" only display accessible commands.
+- Cleanup in-hub command parsing
+- Fix a possible crash if multiple INF messages are sent during login.
+- Rewrote the mainloop to not use a timer.
+
+
+0.2.6:
+- Better "!uptime" command formatting.
+- Better "!stats"; can display peak and current bandwidth usage.
+- Added "+myip" command.
+- Ensure super users and hub owners also have the operator flag set.
+- Bug #1: Disconnecting users due to excessive "send queue".
+- Bug #5: Always provide IP-address for all users, not just for active clients.
+- Better send queue priorities.
+- Dump configuration does not quote integer and boolean settings.
+- Sources hosted by GitHub.com, and bug tracker on bugs.extatic.org
+- Minor optimizations.
+
+
+0.2.5-3487:
+- Fixed out of memory situations, used when uhub operates on a limited heap.
+- Code cleanups, reduced heap memory footprint.
+- Fixed bug throwing users out due to exessive send queue when logging into a large hub.
+- Added some simple hub commands (!stats, !uptime, !version, !help, etc).
+
+
+0.2.4-3470:
+- Added option chat_is_privileged, which makes chat for privileged users only.
+- Started working on hub commands.
+- Fixed a double free() related crash / abort.
+- Fixed several send() -> EPIPE related crashes.
+
+
+0.2.3-3429:
+- Fixed one crash bug (jump to NULL).
+- Fixed IPv6 dual stack issues on Winsock, but needs Vista or later to compile.
+- Disable IPv6 if dual stack is not supported (WinXP with IPv6).
+- Fixed bind issue for IPv4 addresses.
+- Made sure no chat message could have PM context flag, unless set by the hub.
+- Ignore empty INF update messages.
+
+
+0.2.2-3393:
+- Fixed a crash related to hub login.
+- Added some fixes for older versions of libevent
+- Added option to log messages through syslog.
+- Added low bandwidth mode for really big hubs.
+- Started writing a benchmark tool for the hub.
+- Fix bug: reload configuration reset uptime.
+- Experimental support for NetBSD 3.1.
+
+
+0.2.1-3321:
+- Added more robust configuration file parsing.
+- Use defaults if config file is not found, unless a file is specified.
+- Added user class super user (above operator, below admin).
+- Added NAT override for clients behind the same NAT as the hub.
+- Fixed a bug summarizing shared size and files for the PING extension.
+- Fixed bugs related to hub limits.
+
+
+0.2.0-3293:
+- Fixed multiple crash bugs.
+- Fully compatible with ADC/1.0.
+- Protocol extensions: 'TIGR' and 'PING'
+- Added support for configuring min/max share size, slots, concurrent hubs, not very well tested.
+- Made all status message strings configurable.
+- Various BSD issues fixed. Should perform equally well as Linux.
+- Allow ignored configuration options (used when deprecating configuration options).
+- Added command line options for checking configuration.
+- A windows port is more or less done (MinGW)
+- Lots of new auto tests added.
+
+
+0.1.6-2608:
+- Changes required for the ADC/0.14 specification.
+- Stability fixes.
+- Win32 fixes, it compiles and runs, but not quite ported yet.
+- Added CMAKE files, which can be used instead of GNU make.
+- Made sure all messages are terminated when created.
+- Use length of messages, instead of strlen() to determine them.
+- Added more asserts for messages. Spotted a few errors as a result of that.
+- Added support for more sophisticated memory allocation debugging.
+
+
+0.1.5-2462
+- Fixed double free (crash).
+- Fixed password challenge/response coding error (crash).
+- Changes required for the new ADC/0.13 specification.
+- Fixed IPv6 netmask matching (banning)
+- Added UDP server, needed for auto-configure extension (AUT0)
+- Send 'ping' messages periodically if nothing heard from clients.
+- Print IP when client disconnects.
+- Lots of automatic testcases added, fix many bugs in the process.
+- GCC 2.95 compile fixes.
+
+
+0.1.4-2301:
+- uHub now requires and utilizes libevent. This allows for greater code
+portability, and less code complexity.
+- Various FreeBSD/OpenBSD/NetBSD fixes have been applied.
+- Can now log files other than stderr.
+- Added several automatic testcases.
+- The application should now be much more stable, and never consume much CPU.
+- Fixed several small annoying bugs.
+
+
+0.1.3-2147:
+- Changed license to GPL3
+- Fixed several crashes
+- Major code cleanups
+- Refactored event handling
+- Log file format change (minor)
+- Automatic regression testing of code base (via exotic).
+- Memory handling debug infrastructure.
+
+
+0.1.2-2020:
+- Fix infinite loops
+- Don't log users leaving unless they are logged in.
+- Fix private messages in chat only hubs.
+- Operators/admins override chat only hub settings.
+- Fix client/server protocol support negotiation handling
+- IP banning should now work (IPv6 is not tested yet).
+
+
+0.1.1-1956:
+- Fixed memory leaks in ACL handling
+- Prevent unneeded malloc's in command handling when buffers are big enough.
+- Code cleanups and more doxygen style comments added.
+- Fixed crashes and infinite loops
+- FreeBSD compile fixes
+- Timestamp log messages.
+- Log network/bandwidth statistics
+
+
+0.1.0-1840:
+- First public release
+

GNUmakefile

@@ -0,0 +1,263 @@
+ ##
+## Makefile for uhub (Use GNU make)
+## Copyright (C) 2007-2010, Jan Vidar Krey <janvidar@extatic.org>
+ #
+
+-include Makefile.private
+
+CC            = gcc
+LD            := $(CC)
+MV            := mv
+RANLIB        := ranlib
+CFLAGS        += -pipe -Wall
+USE_SSL       ?= YES
+USE_BIGENDIAN ?= AUTO
+BITS          ?= AUTO
+SILENT        ?= YES
+TERSE         ?= NO
+STACK_PROTECT ?= NO
+
+ifeq ($(OS), Windows_NT)
+WINDOWS       ?= YES
+OPSYS ?= Windows
+else
+OPSYS ?= $(shell uname)
+endif
+
+ifeq ($(OPSYS),SunOS)
+LDLIBS        += -lsocket -lnsl
+endif
+
+ifeq ($(OPSYS),Haiku)
+LDLIBS        += -lnetwork
+endif
+
+CFLAGS        += -I./src/
+
+ifeq ($(OPSYS),Windows)
+USE_BIGENDIAN := NO
+LDLIBS        += -lws2_32
+UHUB_CONF_DIR ?= c:/uhub/
+UHUB_PREFIX   ?= c:/uhub/
+CFLAGS        += -mno-cygwin
+LDFLAGS       += -mno-cygwin
+BIN_EXT       ?= .exe
+else
+DESTDIR       ?= /
+UHUB_CONF_DIR ?= $(DESTDIR)/etc/uhub
+UHUB_PREFIX   ?= $(DESTDIR)/usr/local
+CFLAGS        += -I/usr/local/include
+LDFLAGS       += -L/usr/local/lib
+BIN_EXT       ?=
+endif
+
+ifeq ($(SILENT),YES)
+	MSG_CC=@echo "  CC:" $(notdir $<) &&
+	MSG_LD=@echo "  LD:" $(notdir $@) &&
+	MSG_AR=@echo "  AR:" $(notdir $@) &&
+else
+	MSG_CC=
+	MSG_LD=
+	MSG_AR=
+endif
+
+ifeq ($(TERSE), YES)
+	MSG_CC=@
+	MSG_LD=@
+	MSG_AR=@
+	MSG_CLEAN=-n ""
+else
+	MSG_CLEAN="Clean as a whistle"
+endif
+
+ifeq ($(RELEASE),YES)
+CFLAGS        += -O3 -DNDEBUG
+else
+CFLAGS        += -ggdb -DDEBUG
+endif
+
+ifeq ($(STACK_PROTECT),YES)
+CFLAGS        += -fstack-protector-all
+endif
+
+
+ifeq ($(PROFILING),YES)
+CFLAGS        += -pg
+LDFLAGS       += -pg
+endif
+
+ifeq ($(FUNCTRACE),YES)
+CFLAGS        += -finstrument-functions
+CFLAGS        += -DDEBUG_FUNCTION_TRACE
+endif
+
+ifneq ($(BITS), AUTO)
+ifeq ($(BITS), 64)
+CFLAGS        += -m64
+LDFLAGS       += -m64
+else
+ifeq ($(BITS), 32)
+CFLAGS        += -m32
+LDFLAGS       += -m32
+endif
+endif
+endif
+
+ifeq ($(USE_BIGENDIAN),AUTO)
+ifeq ($(shell perl -e 'print pack("L", 0x554E4958)'),UNIX)
+CFLAGS        += -DARCH_BIGENDIAN
+endif
+else
+ifeq ($(USE_BIGENDIAN),YES)
+CFLAGS        += -DARCH_BIGENDIAN
+endif
+endif
+
+ifeq ($(USE_SSL),YES)
+CFLAGS        += -DSSL_SUPPORT
+LDLIBS        += -lssl
+endif
+
+GIT_VERSION=$(shell git describe --tags 2>/dev/null || echo "")
+GIT_REVISION=$(shell git show --abbrev-commit  2>/dev/null | head -n 1 | cut -f 2 -d " " || echo "")
+OLD_REVISION=$(shell grep GIT_REVISION revision.h 2>/dev/null | cut -f 3 -d " " | tr -d "\"")
+
+# Sources
+libuhub_SOURCES := \
+		src/core/auth.c \
+		src/core/commands.c \
+		src/core/config.c \
+		src/core/eventqueue.c \
+		src/core/floodctl.c \
+		src/core/hub.c \
+		src/core/hubevent.c \
+		src/core/hubio.c \
+		src/core/inf.c \
+		src/core/netevent.c \
+		src/core/probe.c \
+		src/core/route.c \
+		src/core/user.c \
+		src/core/usermanager.c \
+		src/network/backend.c \
+		src/network/connection.c \
+		src/network/epoll.c \
+		src/network/kqueue.c \
+		src/network/network.c \
+		src/network/select.c \
+		src/network/timeout.c \
+		src/network/timer.c \
+		src/util/ipcalc.c \
+		src/util/list.c \
+		src/util/log.c \
+		src/util/memory.c \
+		src/util/misc.c \
+		src/util/rbtree.c \
+		src/util/tiger.c
+
+libadc_common_SOURCES := \
+		src/adc/message.c \
+		src/adc/sid.c
+
+libadc_client_SOURCES := \
+		src/tools/adcclient.c
+
+uhub_SOURCES := src/core/main.c
+
+adcrush_SOURCES := src/tools/adcrush.c
+
+admin_SOURCES := src/tools/admin.c
+
+autotest_SOURCES := \
+		autotest/test_eventqueue.tcc \
+		autotest/test_hub.tcc \
+		autotest/test_inf.tcc \
+		autotest/test_ipfilter.tcc \
+		autotest/test_list.tcc \
+		autotest/test_memory.tcc \
+		autotest/test_message.tcc \
+		autotest/test_misc.tcc \
+		autotest/test_sid.tcc \
+		autotest/test_tiger.tcc \
+		autotest/test_timer.tcc \
+		autotest/test_usermanager.tcc
+
+autotest_OBJECTS = autotest.o
+
+# Source to objects
+libuhub_OBJECTS       := $(libuhub_SOURCES:.c=.o)
+libadc_client_OBJECTS := $(libadc_client_SOURCES:.c=.o)
+libadc_common_OBJECTS := $(libadc_common_SOURCES:.c=.o)
+
+uhub_OBJECTS          := $(uhub_SOURCES:.c=.o)
+adcrush_OBJECTS       := $(adcrush_SOURCES:.c=.o)
+admin_OBJECTS         := $(admin_SOURCES:.c=.o)
+
+all_OBJECTS     := $(libuhub_OBJECTS) $(uhub_OBJECTS) $(adcrush_OBJECTS) $(autotest_OBJECTS) $(admin_OBJECTS) $(libadc_common_OBJECTS) $(libadc_client_OBJECTS)
+
+uhub_BINARY=uhub$(BIN_EXT)
+adcrush_BINARY=adcrush$(BIN_EXT)
+admin_BINARY=uhub-admin$(BIN_EXT)
+autotest_BINARY=autotest/test$(BIN_EXT)
+
+.PHONY: revision.h.tmp
+
+%.o: %.c version.h revision.h
+	$(MSG_CC) $(CC) -c $(CFLAGS) -o $@ $<
+
+all: $(uhub_BINARY)
+
+$(adcrush_BINARY): $(adcrush_OBJECTS) $(libuhub_OBJECTS) $(libadc_common_OBJECTS) $(libadc_client_OBJECTS)
+	$(MSG_LD) $(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+
+$(admin_BINARY): $(admin_OBJECTS) $(libuhub_OBJECTS) $(libadc_common_OBJECTS) $(libadc_client_OBJECTS)
+	$(MSG_LD) $(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+
+$(uhub_BINARY): $(uhub_OBJECTS) $(libuhub_OBJECTS) $(libadc_common_OBJECTS)
+	$(MSG_LD) $(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+
+autotest.c: $(autotest_SOURCES)
+	$(shell exotic --standalone $(autotest_SOURCES) > $@)
+
+revision.h.tmp:
+	@rm -f $@
+	@echo "/* AUTOGENERATED FILE - DO NOT EDIT */" > $@
+	@if [ -n '$(GIT_VERSION)' ]; then echo \#define GIT_VERSION \"$(GIT_VERSION)\" >> $@; fi
+	@if [ -n '$(GIT_REVISION)' ]; then echo \#define GIT_REVISION \"$(GIT_REVISION)\" >> $@; fi
+
+version.h: revision.h
+
+revision.h: revision.h.tmp
+	@if [ '$(GIT_REVISION)' != '$(OLD_REVISION)' ]; then cp $@.tmp $@; fi
+	@if [ ! -f $@ ]; then cp $@.tmp $@; fi
+
+$(autotest_OBJECTS): autotest.c
+	$(MSG_CC) $(CC) -c $(CFLAGS) -Isrc -o $@ $<
+
+$(autotest_BINARY): $(autotest_OBJECTS) $(libuhub_OBJECTS) $(libadc_common_OBJECTS) $(libadc_client_OBJECTS)
+	$(MSG_LD) $(CC) -o $@ $^ $(LDFLAGS) $(LDLIBS)
+
+autotest: $(autotest_BINARY)
+	@./$(autotest_BINARY) -s -f
+
+ifeq ($(WINDOWS),YES)
+install:
+	@echo "Cannot install automatically on windows."
+else
+install: $(uhub_BINARY)
+	@echo Copying $(uhub_BINARY) to $(UHUB_PREFIX)/bin/
+	@cp $(uhub_BINARY) $(UHUB_PREFIX)/bin/
+	@if [ ! -d $(UHUB_CONF_DIR) ]; then echo Creating $(UHUB_CONF_DIR); mkdir -p $(UHUB_CONF_DIR); fi
+	@if [ ! -f $(UHUB_CONF_DIR)/uhub.conf ]; then cp doc/uhub.conf $(UHUB_CONF_DIR); fi
+	@if [ ! -f $(UHUB_CONF_DIR)/users.conf ]; then cp doc/users.conf  $(UHUB_CONF_DIR); fi
+	@touch $(UHUB_CONF_DIR)/motd.txt
+	@echo done.
+endif
+
+dist-clean:
+	@rm -rf $(all_OBJECTS) *~ core
+
+clean:
+	@rm -rf $(libuhub_OBJECTS) *~ core $(uhub_BINARY) $(admin_BINARY) $(autotest_BINARY) $(adcrush_BINARY) $(all_OBJECTS) autotest.c revision.h revision.h.tmp && \
+	echo $(MSG_CLEAN)
+
+

README

@@ -0,0 +1,8 @@
+Welcome and thanks for downloading uHub, a high performance ADC p2p hub.
+
+For the official documentation, bugs and other information, please visit:
+http://www.uhub.org/
+
+For a list of compatible ADC clients, see:
+http://www.adcportal.com/wiki/index.php/ADC_Software_List#Client_Software
+

admin/common.sh

@@ -0,0 +1,140 @@
+HOST_SYSTEM=`uname -s | tr [:upper:] [:lower:] | sed s/darwin/macosx/`
+
+if [ "${HOST_SYSTEM}" = "macosx" ]; then
+	HOST_MACHINE=`uname -p | tr [:upper:] [:lower:]`
+else
+	HOST_MACHINE=`uname -m | tr [:upper:] [:lower:] | sed s/i686/i386/ | sed s/x86_64/amd64/ | sed s/ppc64/powerpc/`
+fi
+
+BINSUFFIX=
+MAKEARGS=
+MAKE=make
+WANTZIP=0
+
+if [ "${HOST_SYSTEM}" = "mingw32_nt-5.1" ]; then
+	HOST_SYSTEM=win32
+	BINSUFFIX=.exe
+	WANTZIP=1
+	MAKEARGS="USE_BIGENDIAN=NO"
+fi
+
+BINARY=uhub${BINSUFFIX}
+
+if [ "${HOST_SYSTEM}" = "freebsd" ]; then
+	MAKE=gmake
+fi
+
+VERSION=`grep define\ VERSION version.h | cut -f 3 -d " " | tr -d [=\"=]`
+SNAPSHOT=`date '+%Y%m%d'`
+PACKAGE=uhub-${VERSION}
+PACKAGE_SRC=${PACKAGE}-src
+PACKAGE_BIN=${PACKAGE}-${HOST_SYSTEM}-${HOST_MACHINE}
+ARCHIVE='build-archive:~/www/downloads/uhub/'
+
+function export_source_directory
+{
+	if [ -d ${PACKAGE} ]; then
+		rm -Rf ${PACKAGE};
+	fi
+
+	if [ ! -d .git ]; then
+		echo "No git repo found in `dirname $0`"
+		exit 1
+	fi
+
+	git archive --format=tar --prefix=${PACKAGE}/ HEAD > tmp.tar && tar -xf tmp.tar && rm tmp.tar
+
+	if [ ! -d ${PACKAGE} ]; then
+		echo "Something went wrong while exporting the repo."
+		exit 1
+	fi
+}
+
+function package_zips
+{
+	tar cf $1.tar $2
+	gzip -c -9 $1.tar > $1.tar.gz
+	bzip2 -c -9 $1.tar > $1.tar.bz2
+	rm -f $1.tar
+
+	if [ $WANTZIP -eq 1 ]; then
+		zip -q -9 -r $1.zip $2
+	fi
+}
+
+function export_sources
+{
+	if [ ! -d ${PACKAGE} ]; then
+		export_source_directory
+	fi
+
+	cd ${PACKAGE}
+	${MAKE} ${MAKEARGS} autotest.c
+	cd ..
+
+	if [ ! -f ${PACKAGE}/autotest.c ]; then
+		echo "Unable to create autotest.c, aborting..."
+		exit 1
+	fi
+
+	rm -Rf ${PACKAGE}/admin
+	package_zips ${PACKAGE_SRC} ${PACKAGE}
+
+	rm -Rf ${PACKAGE};
+	cp ChangeLog ChangeLog-${VERSION}
+}
+
+function build_binaries
+{
+        if [ ! -d ${PACKAGE} ]; then
+                export_source_directory
+        fi
+
+        cd ${PACKAGE}
+        ${MAKE} ${MAKEARGS} RELEASE=YES
+        cd ..
+
+        if [ ! -x ${PACKAGE}/${BINARY} ]; then
+                echo "Build failed, no binary found..."
+                exit 1
+        fi
+}
+
+function export_binaries
+{
+	build_binaries
+
+	rm -Rf ${PACKAGE}/admin
+	rm -Rf ${PACKAGE}/autotest
+	rm -Rf ${PACKAGE}/src
+	rm -Rf ${PACKAGE}/debian
+	rm -f ${PACKAGE}/autotest.c
+	rm -f ${PACKAGE}/*akefile
+	rm -f ${PACKAGE}/version.h
+	rm -f ${PACKAGE}/doc/Doxyfile
+	rm -f ${PACKAGE}/doc/uhub.dot
+	rm -f ${PACKAGE}/libuhub*
+
+	package_zips ${PACKAGE_BIN} ${PACKAGE}
+	rm -Rf ${PACKAGE}
+}
+
+function upload_pkg
+{
+	if [ -f $1 ]; then
+		scp $1 ${ARCHIVE}
+	fi
+}
+
+function upload_packages
+{
+	upload_pkg ${PACKAGE_SRC}.tar.gz
+	upload_pkg ${PACKAGE_SRC}.tar.bz2
+	upload_pkg ${PACKAGE_SRC}.zip
+	upload_pkg ChangeLog-${VERSION}
+	upload_pkg ${PACKAGE_BIN}.tar.gz
+	upload_pkg ${PACKAGE_BIN}.tar.bz2
+	upload_pkg ${PACKAGE_BIN}.zip
+}
+
+

admin/export.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+. admin/common.sh
+export_source_directory

admin/make_pkg_deb.sh

@@ -0,0 +1,95 @@
+#!/bin/sh
+. admin/common.sh
+
+export_source_directory
+build_binaries
+
+DEB_REVISION=1
+
+if [ -d deb ]; then
+	rm -Rf deb
+fi
+
+mkdir -p \
+	deb/DEBIAN \
+	deb/usr/bin \
+	deb/usr/share/man/man1/ \
+	deb/usr/share/doc/uhub \
+	deb/etc/uhub \
+	|| exit 1
+
+find deb -type d | xargs chmod 755
+
+# Copy binaries...
+cp ${PACKAGE}/${BINARY} deb/usr/bin
+strip deb/usr/bin/${BINARY}
+
+# Copy configuration files...
+cp ${PACKAGE}/doc/uhub.conf deb/etc/uhub
+cp ${PACKAGE}/doc/users.conf deb/etc/uhub
+echo "Welcome to uHub" > deb/etc/uhub/motd.txt
+
+# Copy other files
+cp ${PACKAGE}/README deb/usr/share/doc/uhub
+cp ${PACKAGE}/AUTHORS deb/usr/share/doc/uhub
+gzip -c --best < ${PACKAGE}/ChangeLog > deb/usr/share/doc/uhub/changelog.gz
+gzip -c --best < ${PACKAGE}/doc/uhub.1 > deb/usr/share/man/man1/uhub.1.gz
+
+cat > deb/usr/share/doc/uhub/copyright <<EOF
+uHub - a high performance hub for the ADC peer-to-peer network
+
+Copyright (C) 2007-2009 Jan Vidar Krey <janvidar@extatic.org>
+
+uHub is free and open source software, licensed under the
+GNU General Public License version 3.
+
+For details, see /usr/share/common-licenses/GPL-3
+EOF
+
+gzip -c --best > deb/usr/share/doc/uhub/changelog.Debian.gz <<EOF
+uhub (${VERSION}) stable; urgency=low
+
+  * See changelog.gz for details.
+
+ -- Jan Vidar Krey <janvidar@extatic.org>  `date -R`
+EOF
+
+### Write control files
+cd deb
+echo "/etc/uhub/uhub.conf"   > DEBIAN/conffiles
+echo "/etc/uhub/users.conf" >> DEBIAN/conffiles
+echo "/etc/uhub/motd.txt"   >> DEBIAN/conffiles
+
+md5sum `find usr -type f` > DEBIAN/md5sums
+
+INSTALL_SIZE=`du -s | cut -f 1`
+
+cat > DEBIAN/control <<EOF
+Package: uhub
+Version: ${VERSION}-${DEB_REVISION}
+Architecture: ${HOST_MACHINE}
+Maintainer: Jan Vidar Krey <janvidar@extatic.org>
+Installed-Size: ${INSTALL_SIZE}
+Depends: libc6 (>= 2.7-1), libevent1 (>= 1.3e-1)
+Section: net
+Priority: optional
+Description: a high performance hub for the ADC peer-to-peer network
+ uHub is a high performance peer-to-peer hub for the ADC network.
+ Its low memory footprint allows it to handle several thousand users
+ on high-end servers, or a small private hub on embedded hardware.
+ .
+Homepage: http://www.extatic.org/uhub/
+EOF
+cd ..
+
+### Create deb file
+fakeroot dpkg-deb --build deb
+mv deb.deb uhub_${VERSION}-${DEB_REVISION}_${HOST_MACHINE}.deb
+
+### Check for errors
+lintian uhub_${VERSION}-${DEB_REVISION}_${HOST_MACHINE}.deb
+
+### Cleanup
+rm -Rf deb
+rm -Rf ${PACKAGE}
+

admin/release_binaries.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+. admin/common.sh
+export_binaries

admin/release_sources.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+. admin/common.sh
+WANTZIP=1
+export_sources

admin/setup_archive.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+PUB="${HOME}/.ssh/id_rsa.pub"
+CFG="${HOME}/.ssh/config"
+
+if [ ! "`grep build-archive ${CFG}`" ]; then
+echo "Updating ssh config (${CFG})..."
+cat >> ${CFG} <<EOF
+
+Host build-archive
+	ForwardX11	no
+	HostName	login.domeneshop.no
+	User		extatic
+EOF
+else
+echo "ssh config seems OK (${CFG})"
+fi
+
+if [ ! -f ${PUB} ]; then
+	echo "No id_rsa.pub - run ssh-keygen"
+	exit 1
+fi
+
+echo "Copying public key (${PUB})..."
+cat ${PUB} | ssh build-archive "cat >> .ssh/authorized_keys"
+

admin/upload.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+. admin/common.sh
+upload_packages

autotest/test_eventqueue.tcc

@@ -0,0 +1,85 @@
+#include <uhub.h>
+
+static struct event_queue* eq;
+static int eq_val;
+
+static void eq_callback(void* callback_data, struct event_data* event_data)
+{
+	eq_val += event_data->id;
+}
+
+EXO_TEST(eventqueue_init_1, {
+	eq = 0;
+	eq_val = 0;
+	return event_queue_initialize(&eq, eq_callback, &eq_val) == 0 && event_queue_size(eq) == 0;
+});
+
+EXO_TEST(eventqueue_init_2, {
+	/* hack */
+	return eq->callback_data == &eq_val && eq->callback == eq_callback && eq->q1 && eq->q2 && !eq->locked;
+});
+
+EXO_TEST(eventqueue_post_1, {
+	struct event_data message;
+	message.id  = 0x1001;
+	message.ptr = &message;
+	message.flags = message.id * 2;
+	event_queue_post(eq, &message);
+	return event_queue_size(eq) == 1;
+});
+
+EXO_TEST(eventqueue_process_1, {
+	event_queue_process(eq);
+	return eq_val == 0x1001;
+});
+
+EXO_TEST(eventqueue_size_1, {
+	eq_val = 0;
+	return event_queue_size(eq) == 0;
+});
+
+EXO_TEST(eventqueue_post_2, {
+	struct event_data message;
+	message.id  = 0x1002;
+	message.ptr = &message;
+	message.flags = message.id * 2;
+	event_queue_post(eq, &message);
+	return event_queue_size(eq) == 1;
+});
+
+EXO_TEST(eventqueue_size_2, {
+	eq_val = 0;
+	return event_queue_size(eq) == 1;
+});
+
+
+EXO_TEST(eventqueue_post_3, {
+	struct event_data message;
+	message.id  = 0x1003;
+	message.ptr = &message;
+	message.flags = message.id * 2;
+	event_queue_post(eq, &message);
+	return event_queue_size(eq) == 2;
+});
+
+EXO_TEST(eventqueue_size_3, {
+	eq_val = 0;
+	return event_queue_size(eq) == 2;
+});
+
+EXO_TEST(eventqueue_process_2, {
+	event_queue_process(eq);
+	return eq_val == 0x2005;
+});
+
+EXO_TEST(eventqueue_size_4, {
+	eq_val = 0;
+	return event_queue_size(eq) == 0;
+});
+
+EXO_TEST(eventqueue_shutdown_1, {
+	event_queue_shutdown(eq);
+	return 1;
+});
+
+

autotest/test_hub.tcc

@@ -0,0 +1,72 @@
+#include <uhub.h>
+
+static struct hub_config g_config;
+static struct acl_handle g_acl;
+static struct hub_info* g_hub;
+
+/*
+static void create_test_user()
+{
+	if (g_user)
+		return;
+
+	g_user = (struct hub_user*) malloc(sizeof(struct hub_user));
+	memset(g_user, 0, sizeof(struct hub_user));
+	memcpy(g_user->id.nick, "exotic-tester", 13);
+	g_user->sid = 1;
+}
+*/
+
+EXO_TEST(hub_net_startup, {
+	return (net_initialize() != -1);
+});
+
+EXO_TEST(hub_config_initialize, {
+	config_defaults(&g_config);
+	g_config.server_port = 65111;
+	return 1;
+});
+
+EXO_TEST(hub_acl_initialize, {
+	return (acl_initialize(&g_config, &g_acl) != -1);
+});
+
+EXO_TEST(hub_service_initialize, {
+	g_hub = hub_start_service(&g_config);
+	return g_hub ? 1 : 0;
+});
+
+EXO_TEST(hub_variables_startup, {
+	hub_set_variables(g_hub, &g_acl);
+	return 1;
+});
+
+/*** HUB IS OPERATIONAL HERE! ***/
+
+EXO_TEST(hub_variables_shutdown, {
+	hub_free_variables(g_hub);
+	return 1;
+});
+
+EXO_TEST(hub_acl_shutdown, {
+	acl_shutdown(&g_acl);
+	return 1;
+});
+
+EXO_TEST(hub_config_shutdown, {
+	free_config(&g_config);
+	return 1;
+});
+
+EXO_TEST(hub_service_shutdown, {
+	if (g_hub)
+	{
+		hub_shutdown_service(g_hub);
+		return 1;
+	}
+	return 0;
+});
+
+EXO_TEST(hub_net_shutdown, {
+	return (net_destroy() != -1);
+});

autotest/test_inf.tcc

@@ -0,0 +1,161 @@
+#include <uhub.h>
+
+#define USER_CID "GNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI"
+#define USER_PID "3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y"
+#define USER_NICK "Friend"
+#define USER_SID "AAAB"
+
+static struct hub_user* inf_user       = 0;
+static struct hub_info* inf_hub    = 0;
+
+extern int hub_handle_info_login(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd);
+
+static void inf_create_hub()
+{
+	inf_hub = (struct hub_info*) hub_malloc_zero(sizeof(struct hub_info));
+	inf_hub->users = (struct hub_user_manager*) hub_malloc_zero(sizeof(struct hub_user_manager));
+	inf_hub->users->list = list_create();
+	inf_hub->users->sids = sid_pool_create(500);
+	
+	inf_hub->acl = (struct acl_handle*) hub_malloc_zero(sizeof(struct acl_handle));
+	inf_hub->config = (struct hub_config*) hub_malloc_zero(sizeof(struct hub_config));
+	
+	config_defaults(inf_hub->config);
+	acl_initialize(inf_hub->config, inf_hub->acl);
+}
+
+static void inf_destroy_hub()
+{
+	/* FIXME */
+	list_destroy(inf_hub->users->list);
+	sid_pool_destroy(inf_hub->users->sids);
+	acl_shutdown(inf_hub->acl);
+	free_config(inf_hub->config);
+	hub_free(inf_hub->users);
+	hub_free(inf_hub->acl);
+	hub_free(inf_hub->config);
+	hub_free(inf_hub);
+}
+
+
+static void inf_create_user()
+{
+	if (inf_user) return;
+	inf_user = (struct hub_user*) hub_malloc_zero(sizeof(struct hub_user));
+	inf_user->id.sid = 1;
+	inf_user->limits.upload_slots = 1;
+}
+
+static void inf_destroy_user()
+{
+	if (!inf_user) return;
+	hub_free(inf_user);
+	inf_user = 0;
+}
+
+EXO_TEST(inf_create_setup,
+{
+	inf_create_hub();
+	inf_create_user();
+	return (inf_user && inf_hub);
+});
+
+
+/* FIXME: MEMORY LEAK - Need to fix hub_handle_info_login */
+#define CHECK_INF(MSG, EXPECT) \
+	struct adc_message* msg = adc_msg_parse_verify(inf_user, MSG, strlen(MSG)); \
+	int ok = hub_handle_info_login(inf_hub, inf_user, msg); /* FIXME: MEMORY LEAK */ \
+	adc_msg_free(msg); \
+	if (ok == EXPECT) \
+		user_set_info(inf_user, 0); \
+	return ok == EXPECT;
+	
+
+EXO_TEST(inf_ok_1,  { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", 0); });
+
+/* check CID abuse */
+EXO_TEST(inf_cid_1, { CHECK_INF("BINF AAAB NIFriend PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_cid_missing); });
+EXO_TEST(inf_cid_2, { CHECK_INF("BINF AAAB NIFriend IDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_cid_invalid); });
+EXO_TEST(inf_cid_3, { CHECK_INF("BINF AAAB NIFriend IDaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_cid_invalid); });
+EXO_TEST(inf_cid_4, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2R PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_cid_invalid); }); /* cid 1 byte short */
+EXO_TEST(inf_cid_5, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RX PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_cid_invalid); }); /* cid 1 byte longer */
+EXO_TEST(inf_cid_6, { CHECK_INF("BINF AAAB NIFriend IDA PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_cid_invalid); });
+EXO_TEST(inf_cid_7, { CHECK_INF("BINF AAAB NIFriend IDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_cid_invalid); }); /* multi */
+EXO_TEST(inf_cid_8, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y IDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n", status_msg_inf_error_cid_invalid); });
+EXO_TEST(inf_cid_9, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI\n", status_msg_inf_error_cid_invalid); });
+
+/* equivalent to the pid versions */
+EXO_TEST(inf_pid_1, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI\n", status_msg_inf_error_pid_missing); }); /* pid missing */
+EXO_TEST(inf_pid_2, { CHECK_INF("BINF AAAB NIFriend ID3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y PDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n", status_msg_inf_error_cid_invalid); }); /* variant of inf_cid_2 */
+EXO_TEST(inf_pid_3, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PDaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\n", status_msg_inf_error_pid_invalid); }); /* pid invalid */
+EXO_TEST(inf_pid_4, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7\n", status_msg_inf_error_pid_invalid); }); /* pid 1 byte short */
+EXO_TEST(inf_pid_5, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7YX\n", status_msg_inf_error_pid_invalid); }); /* pid 1 byte longer */
+EXO_TEST(inf_pid_6, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PDA\n", status_msg_inf_error_pid_invalid); }); /* very short pid */
+EXO_TEST(inf_pid_7, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y PDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\n", status_msg_inf_error_pid_invalid); });
+EXO_TEST(inf_pid_8, { CHECK_INF("BINF AAAB NIFriend PDAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_pid_invalid); });
+EXO_TEST(inf_pid_9, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_pid_invalid); });
+
+/* check nickname abuse */
+EXO_TEST(inf_nick_01, { CHECK_INF("BINF AAAB IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_missing); });
+EXO_TEST(inf_nick_02, { CHECK_INF("BINF AAAB NI IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_short); });
+EXO_TEST(inf_nick_03, { CHECK_INF("BINF AAAB NIa IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_short); });
+EXO_TEST(inf_nick_04, { CHECK_INF("BINF AAAB NIabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_long); });
+EXO_TEST(inf_nick_05, { CHECK_INF("BINF AAAB NI\\sabc IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_spaces); });
+EXO_TEST(inf_nick_06, { CHECK_INF("BINF AAAB NIa\\sc IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", 0); });
+EXO_TEST(inf_nick_07, { CHECK_INF("BINF AAAB NIa\tc IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_bad_chars); });
+EXO_TEST(inf_nick_08, { CHECK_INF("BINF AAAB NIa\\nc IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_bad_chars); });
+EXO_TEST(inf_nick_09, { CHECK_INF("BINF AAAB NIabc NIdef IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n", status_msg_inf_error_nick_multiple); });
+EXO_TEST(inf_nick_10, {
+	const char* line = "BINF AAAB IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y\n";
+	char nick[10];
+	nick[0] = 0xf7; nick[1] = 0x80; nick[2] = 0x7f; nick[3] = 0x81; nick[4] = 0x98; nick[5] = 0x00;
+	struct adc_message* msg = adc_msg_parse_verify(inf_user, line, strlen(line));
+	
+	adc_msg_add_named_argument(msg, "NI", nick);
+	int ok = hub_handle_info_login(inf_hub, inf_user, msg);
+	adc_msg_free(msg);
+	if (ok != status_msg_inf_error_nick_not_utf8)
+		printf("Expected %d, got %d\n", status_msg_inf_error_nick_not_utf8, ok);
+	return ok == status_msg_inf_error_nick_not_utf8;
+});
+
+/* check limits for slots and share */
+EXO_TEST(inf_limits_1, { inf_hub->config->limit_min_slots = 1; CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y SL0\n", status_msg_user_slots_low); });
+EXO_TEST(inf_limits_2, { inf_hub->config->limit_max_slots = 5; CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y SL99\n", status_msg_user_slots_high); });
+EXO_TEST(inf_limits_3, { inf_hub->config->limit_min_share = 100; CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y SS104857599\n", status_msg_user_share_size_low); });
+EXO_TEST(inf_limits_4, { inf_hub->config->limit_max_share = 500; CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y SS524288001\n", status_msg_user_share_size_high); });
+
+/* setup for check limits for hubs */
+EXO_TEST(inf_limit_hubs_setup,
+{
+	inf_hub->config->limit_min_slots = 0;
+	inf_hub->config->limit_max_slots = 0;
+	inf_hub->config->limit_max_share = 0;
+	inf_hub->config->limit_min_share = 0;
+	inf_hub->config->limit_max_hubs_user = 10;
+	inf_hub->config->limit_max_hubs_reg  = 10;
+	inf_hub->config->limit_max_hubs_op   = 10;
+	inf_hub->config->limit_min_hubs_user = 2;
+	inf_hub->config->limit_min_hubs_reg  = 2;
+	inf_hub->config->limit_min_hubs_op   = 2;
+	inf_hub->config->limit_max_hubs      = 25;
+	
+	return 1;
+} );
+
+
+EXO_TEST(inf_limit_hubs_1, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y HN15\n", status_msg_user_hub_limit_high); });
+EXO_TEST(inf_limit_hubs_2, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y HN1\n", status_msg_user_hub_limit_low); });
+EXO_TEST(inf_limit_hubs_3, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y HO15\n", status_msg_user_hub_limit_high); });
+EXO_TEST(inf_limit_hubs_4, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y HO1\n", status_msg_user_hub_limit_low); });
+EXO_TEST(inf_limit_hubs_5, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y HR15\n", status_msg_user_hub_limit_high); });
+EXO_TEST(inf_limit_hubs_6, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y HR1\n", status_msg_user_hub_limit_low); });
+EXO_TEST(inf_limit_hubs_7, { CHECK_INF("BINF AAAB NIFriend IDGNSSMURMD7K466NGZIHU65TP3S3UZSQ6MN5B2RI PD3A4545WFVGZLSGUXZLG7OS6ULQUVG3HM2T63I7Y HN15 HR15 HO15\n", status_msg_user_hub_limit_high); });
+
+
+EXO_TEST(inf_destroy_setup,
+{
+	inf_destroy_user();
+	inf_destroy_hub();
+	return 1;
+});

autotest/test_ipfilter.tcc

@@ -0,0 +1,621 @@
+#include <uhub.h>
+
+static int ipv6 = 0;
+
+static struct ip_addr_encap ip4_a;
+static struct ip_addr_encap ip4_b;
+static struct ip_addr_encap ip4_c;
+static struct ip_addr_encap ip6_a;
+static struct ip_addr_encap ip6_b;
+static struct ip_addr_encap ip6_c;
+static struct ip_addr_encap mask;
+static struct ip_range ban6;
+static struct ip_range ban4;
+
+EXO_TEST(prepare_network, {
+    return net_initialize() == 0;
+});
+
+EXO_TEST(check_ipv6, {
+	ipv6 = net_is_ipv6_supported();
+	return ipv6 != -1;
+});
+
+EXO_TEST(create_addresses_1, {
+	return
+		ip_convert_to_binary("192.168.0.0",     &ip4_a) &&
+		ip_convert_to_binary("192.168.255.255", &ip4_b) &&
+		ip_convert_to_binary("192.168.0.1",     &ip4_c);
+});
+
+EXO_TEST(create_addresses_2, {
+	return
+		ip_convert_to_binary("2001::201:2ff:fefa:0",    &ip6_a) &&
+		ip_convert_to_binary("2001::201:2ff:fefa:ffff", &ip6_b) &&
+		ip_convert_to_binary("2001::201:2ff:fefa:fffe", &ip6_c);
+});
+
+EXO_TEST(ip_is_valid_ipv4_1, {
+	return ip_is_valid_ipv4("127.0.0.1");
+});
+
+EXO_TEST(ip_is_valid_ipv4_2, {
+	return ip_is_valid_ipv4("10.18.1.178");
+});
+
+EXO_TEST(ip_is_valid_ipv4_3, {
+	return ip_is_valid_ipv4("10.18.1.178");
+});
+
+EXO_TEST(ip_is_valid_ipv4_4, {
+	return ip_is_valid_ipv4("224.0.0.1");
+});
+
+EXO_TEST(ip_is_valid_ipv4_5, {
+	return !ip_is_valid_ipv4("224.0.0.");
+});
+
+EXO_TEST(ip_is_valid_ipv4_6, {
+	return !ip_is_valid_ipv4("invalid");
+});
+
+EXO_TEST(ip_is_valid_ipv4_7, {
+	return !ip_is_valid_ipv4("localhost");
+});
+
+EXO_TEST(ip_is_valid_ipv4_8, {
+	return !ip_is_valid_ipv4("123.45.67.890");
+});
+
+EXO_TEST(ip_is_valid_ipv4_9, {
+	return !ip_is_valid_ipv4("777.777.777.777");
+});
+
+EXO_TEST(ip_is_valid_ipv6_1, {
+	if (!ipv6) return 1;
+	return ip_is_valid_ipv6("::");
+});
+
+EXO_TEST(ip_is_valid_ipv6_2, {
+	if (!ipv6) return 1;
+	return ip_is_valid_ipv6("::1");
+});
+
+EXO_TEST(ip_is_valid_ipv6_3, {
+	if (!ipv6) return 1;
+	return ip_is_valid_ipv6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
+});
+
+EXO_TEST(ip4_compare_1, {
+	return ip_compare(&ip4_a, &ip4_b) < 0;
+});
+
+EXO_TEST(ip4_compare_2, {
+	return ip_compare(&ip4_a, &ip4_c) < 0;
+});
+
+EXO_TEST(ip4_compare_3, {
+	return ip_compare(&ip4_b, &ip4_c) > 0;
+});
+
+EXO_TEST(ip4_compare_4, {
+	return ip_compare(&ip4_b, &ip4_a) > 0;
+});
+
+EXO_TEST(ip4_compare_5, {
+	return ip_compare(&ip4_c, &ip4_a) > 0;
+});
+
+EXO_TEST(ip4_compare_6, {
+	if (!ipv6) return 1;
+	return ip_compare(&ip4_c, &ip4_c) == 0;
+});
+
+EXO_TEST(ip6_compare_1, {
+	if (!ipv6) return 1;
+	return ip_compare(&ip6_a, &ip6_b) < 0;
+});
+
+EXO_TEST(ip6_compare_2, {
+	if (!ipv6) return 1;
+	return ip_compare(&ip6_a, &ip6_c) < 0;
+});
+
+EXO_TEST(ip6_compare_3, {
+	if (!ipv6) return 1;
+	return ip_compare(&ip6_b, &ip6_c) > 0;
+});
+
+EXO_TEST(ip6_compare_4, {
+	if (!ipv6) return 1;
+	return ip_compare(&ip6_b, &ip6_a) > 0;
+});
+
+EXO_TEST(ip6_compare_5, {
+	if (!ipv6) return 1;
+	return ip_compare(&ip6_c, &ip6_a) > 0;
+});
+
+EXO_TEST(ip6_compare_6, {
+	if (!ipv6) return 1;
+	return ip_compare(&ip6_c, &ip6_c) == 0;
+});
+
+static int compare_str(const char* s1, const char* s2)
+{
+	int ok = strcmp(s1, s2);
+#ifdef DEBUG_TESTS
+	if (ok)
+	{
+		printf("compare_str fail: s1='%s', s2='%s'\n", s1, s2);
+	}
+#endif
+	return ok;
+}
+
+#define LMASK4(bits)    !ip_mask_create_left (AF_INET,  bits, &mask)
+#define LMASK6(bits)    (ipv6 ? !ip_mask_create_left (AF_INET6, bits, &mask) : 1)
+#define RMASK4(bits)    !ip_mask_create_right(AF_INET,  bits, &mask)
+#define RMASK6(bits)    (ipv6 ? !ip_mask_create_right(AF_INET6, bits, &mask) : 1)
+#define CHECK4(expect)   !compare_str(ip_convert_to_string(&mask), expect)
+#define CHECK6(expect)  (ipv6 ? !compare_str(ip_convert_to_string(&mask), expect) : 1)
+
+/* Check IPv4 masks */
+EXO_TEST(ipv4_lmask_create_0,  { return LMASK4( 0) && CHECK4("0.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_1,  { return LMASK4( 1) && CHECK4("128.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_2,  { return LMASK4( 2) && CHECK4("192.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_3,  { return LMASK4( 3) && CHECK4("224.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_4,  { return LMASK4( 4) && CHECK4("240.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_5,  { return LMASK4( 5) && CHECK4("248.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_6,  { return LMASK4( 6) && CHECK4("252.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_7,  { return LMASK4( 7) && CHECK4("254.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_8,  { return LMASK4( 8) && CHECK4("255.0.0.0"); });
+EXO_TEST(ipv4_lmask_create_9,  { return LMASK4( 9) && CHECK4("255.128.0.0"); });
+EXO_TEST(ipv4_lmask_create_10, { return LMASK4(10) && CHECK4("255.192.0.0"); });
+EXO_TEST(ipv4_lmask_create_11, { return LMASK4(11) && CHECK4("255.224.0.0"); });
+EXO_TEST(ipv4_lmask_create_12, { return LMASK4(12) && CHECK4("255.240.0.0"); });
+EXO_TEST(ipv4_lmask_create_13, { return LMASK4(13) && CHECK4("255.248.0.0"); });
+EXO_TEST(ipv4_lmask_create_14, { return LMASK4(14) && CHECK4("255.252.0.0"); });
+EXO_TEST(ipv4_lmask_create_15, { return LMASK4(15) && CHECK4("255.254.0.0"); });
+EXO_TEST(ipv4_lmask_create_16, { return LMASK4(16) && CHECK4("255.255.0.0"); });
+EXO_TEST(ipv4_lmask_create_17, { return LMASK4(17) && CHECK4("255.255.128.0"); });
+EXO_TEST(ipv4_lmask_create_18, { return LMASK4(18) && CHECK4("255.255.192.0"); });
+EXO_TEST(ipv4_lmask_create_19, { return LMASK4(19) && CHECK4("255.255.224.0"); });
+EXO_TEST(ipv4_lmask_create_20, { return LMASK4(20) && CHECK4("255.255.240.0"); });
+EXO_TEST(ipv4_lmask_create_21, { return LMASK4(21) && CHECK4("255.255.248.0"); });
+EXO_TEST(ipv4_lmask_create_22, { return LMASK4(22) && CHECK4("255.255.252.0"); });
+EXO_TEST(ipv4_lmask_create_23, { return LMASK4(23) && CHECK4("255.255.254.0"); });
+EXO_TEST(ipv4_lmask_create_24, { return LMASK4(24) && CHECK4("255.255.255.0"); });
+EXO_TEST(ipv4_lmask_create_25, { return LMASK4(25) && CHECK4("255.255.255.128"); });
+EXO_TEST(ipv4_lmask_create_26, { return LMASK4(26) && CHECK4("255.255.255.192"); });
+EXO_TEST(ipv4_lmask_create_27, { return LMASK4(27) && CHECK4("255.255.255.224"); });
+EXO_TEST(ipv4_lmask_create_28, { return LMASK4(28) && CHECK4("255.255.255.240"); });
+EXO_TEST(ipv4_lmask_create_29, { return LMASK4(29) && CHECK4("255.255.255.248"); });
+EXO_TEST(ipv4_lmask_create_30, { return LMASK4(30) && CHECK4("255.255.255.252"); });
+EXO_TEST(ipv4_lmask_create_31, { return LMASK4(31) && CHECK4("255.255.255.254"); });
+EXO_TEST(ipv4_lmask_create_32, { return LMASK4(32) && CHECK4("255.255.255.255"); });
+
+/* Check IPv4 right to left mask */
+EXO_TEST(ipv4_rmask_create_0,  { return RMASK4( 0) && CHECK4("0.0.0.0"); });
+EXO_TEST(ipv4_rmask_create_1,  { return RMASK4( 1) && CHECK4("0.0.0.1"); });
+EXO_TEST(ipv4_rmask_create_2,  { return RMASK4( 2) && CHECK4("0.0.0.3"); });
+EXO_TEST(ipv4_rmask_create_3,  { return RMASK4( 3) && CHECK4("0.0.0.7"); });
+EXO_TEST(ipv4_rmask_create_4,  { return RMASK4( 4) && CHECK4("0.0.0.15"); });
+EXO_TEST(ipv4_rmask_create_5,  { return RMASK4( 5) && CHECK4("0.0.0.31"); });
+EXO_TEST(ipv4_rmask_create_6,  { return RMASK4( 6) && CHECK4("0.0.0.63"); });
+EXO_TEST(ipv4_rmask_create_7,  { return RMASK4( 7) && CHECK4("0.0.0.127"); });
+EXO_TEST(ipv4_rmask_create_8,  { return RMASK4( 8) && CHECK4("0.0.0.255"); });
+EXO_TEST(ipv4_rmask_create_9,  { return RMASK4( 9) && CHECK4("0.0.1.255"); });
+EXO_TEST(ipv4_rmask_create_10, { return RMASK4(10) && CHECK4("0.0.3.255"); });
+EXO_TEST(ipv4_rmask_create_11, { return RMASK4(11) && CHECK4("0.0.7.255"); });
+EXO_TEST(ipv4_rmask_create_12, { return RMASK4(12) && CHECK4("0.0.15.255"); });
+EXO_TEST(ipv4_rmask_create_13, { return RMASK4(13) && CHECK4("0.0.31.255"); });
+EXO_TEST(ipv4_rmask_create_14, { return RMASK4(14) && CHECK4("0.0.63.255"); });
+EXO_TEST(ipv4_rmask_create_15, { return RMASK4(15) && CHECK4("0.0.127.255"); });
+EXO_TEST(ipv4_rmask_create_16, { return RMASK4(16) && CHECK4("0.0.255.255"); });
+EXO_TEST(ipv4_rmask_create_17, { return RMASK4(17) && CHECK4("0.1.255.255"); });
+EXO_TEST(ipv4_rmask_create_18, { return RMASK4(18) && CHECK4("0.3.255.255"); });
+EXO_TEST(ipv4_rmask_create_19, { return RMASK4(19) && CHECK4("0.7.255.255"); });
+EXO_TEST(ipv4_rmask_create_20, { return RMASK4(20) && CHECK4("0.15.255.255"); });
+EXO_TEST(ipv4_rmask_create_21, { return RMASK4(21) && CHECK4("0.31.255.255"); });
+EXO_TEST(ipv4_rmask_create_22, { return RMASK4(22) && CHECK4("0.63.255.255"); });
+EXO_TEST(ipv4_rmask_create_23, { return RMASK4(23) && CHECK4("0.127.255.255"); });
+EXO_TEST(ipv4_rmask_create_24, { return RMASK4(24) && CHECK4("0.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_25, { return RMASK4(25) && CHECK4("1.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_26, { return RMASK4(26) && CHECK4("3.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_27, { return RMASK4(27) && CHECK4("7.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_28, { return RMASK4(28) && CHECK4("15.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_29, { return RMASK4(29) && CHECK4("31.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_30, { return RMASK4(30) && CHECK4("63.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_31, { return RMASK4(31) && CHECK4("127.255.255.255"); });
+EXO_TEST(ipv4_rmask_create_32, { return RMASK4(32) && CHECK4("255.255.255.255"); });
+
+
+/* Check IPv6 masks */
+EXO_TEST(ip6_lmask_create_0,   { return LMASK6(  0) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_lmask_create_1,   { return LMASK6(  1) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe"); });
+EXO_TEST(ip6_lmask_create_2,   { return LMASK6(  2) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffc"); });
+EXO_TEST(ip6_lmask_create_3,   { return LMASK6(  3) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff8"); });
+EXO_TEST(ip6_lmask_create_4,   { return LMASK6(  4) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fff0"); });
+EXO_TEST(ip6_lmask_create_5,   { return LMASK6(  5) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0"); });
+EXO_TEST(ip6_lmask_create_6,   { return LMASK6(  6) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffc0"); });
+EXO_TEST(ip6_lmask_create_7,   { return LMASK6(  7) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff80"); });
+EXO_TEST(ip6_lmask_create_8,   { return LMASK6(  8) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00"); });
+EXO_TEST(ip6_lmask_create_9,   { return LMASK6(  9) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fe00"); });
+EXO_TEST(ip6_lmask_create_10,  { return LMASK6( 10) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:fc00"); });
+EXO_TEST(ip6_lmask_create_11,  { return LMASK6( 11) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:f800"); });
+EXO_TEST(ip6_lmask_create_12,  { return LMASK6( 12) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:f000"); });
+EXO_TEST(ip6_lmask_create_13,  { return LMASK6( 13) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:e000"); });
+EXO_TEST(ip6_lmask_create_14,  { return LMASK6( 14) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:c000"); });
+EXO_TEST(ip6_lmask_create_15,  { return LMASK6( 15) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:8000"); });
+EXO_TEST(ip6_lmask_create_16,  { return LMASK6( 16) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff::")); });
+EXO_TEST(ip6_lmask_create_17,  { return LMASK6( 17) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fffe:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fffe::")); });
+EXO_TEST(ip6_lmask_create_18,  { return LMASK6( 18) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fffc:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fffc::")); });
+EXO_TEST(ip6_lmask_create_19,  { return LMASK6( 19) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fff8:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fff8::")); });
+EXO_TEST(ip6_lmask_create_20,  { return LMASK6( 20) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fff0:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fff0::")); });
+EXO_TEST(ip6_lmask_create_21,  { return LMASK6( 21) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffe0:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffe0::")); });
+EXO_TEST(ip6_lmask_create_22,  { return LMASK6( 22) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffc0:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffc0::")); });
+EXO_TEST(ip6_lmask_create_23,  { return LMASK6( 23) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ff80:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ff80::")); });
+EXO_TEST(ip6_lmask_create_24,  { return LMASK6( 24) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ff00:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ff00::")); });
+EXO_TEST(ip6_lmask_create_25,  { return LMASK6( 25) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fe00:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fe00::")); });
+EXO_TEST(ip6_lmask_create_26,  { return LMASK6( 26) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fc00:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:fc00::")); });
+EXO_TEST(ip6_lmask_create_27,  { return LMASK6( 27) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:f800:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:f800::")); });
+EXO_TEST(ip6_lmask_create_28,  { return LMASK6( 28) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:f000:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:f000::")); });
+EXO_TEST(ip6_lmask_create_29,  { return LMASK6( 29) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:e000:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:e000::")); });
+EXO_TEST(ip6_lmask_create_30,  { return LMASK6( 30) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:c000:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:c000::")); });
+EXO_TEST(ip6_lmask_create_31,  { return LMASK6( 31) && (CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:8000:0") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:8000::")); });
+EXO_TEST(ip6_lmask_create_32,  { return LMASK6( 32) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff::"); });
+EXO_TEST(ip6_lmask_create_33,  { return LMASK6( 33) && CHECK6("ffff:ffff:ffff:ffff:ffff:fffe::"); });
+EXO_TEST(ip6_lmask_create_34,  { return LMASK6( 34) && CHECK6("ffff:ffff:ffff:ffff:ffff:fffc::"); });
+EXO_TEST(ip6_lmask_create_35,  { return LMASK6( 35) && CHECK6("ffff:ffff:ffff:ffff:ffff:fff8::"); });
+EXO_TEST(ip6_lmask_create_36,  { return LMASK6( 36) && CHECK6("ffff:ffff:ffff:ffff:ffff:fff0::"); });
+EXO_TEST(ip6_lmask_create_37,  { return LMASK6( 37) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffe0::"); });
+EXO_TEST(ip6_lmask_create_38,  { return LMASK6( 38) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffc0::"); });
+EXO_TEST(ip6_lmask_create_39,  { return LMASK6( 39) && CHECK6("ffff:ffff:ffff:ffff:ffff:ff80::"); });
+EXO_TEST(ip6_lmask_create_40,  { return LMASK6( 40) && CHECK6("ffff:ffff:ffff:ffff:ffff:ff00::"); });
+EXO_TEST(ip6_lmask_create_41,  { return LMASK6( 41) && CHECK6("ffff:ffff:ffff:ffff:ffff:fe00::"); });
+EXO_TEST(ip6_lmask_create_42,  { return LMASK6( 42) && CHECK6("ffff:ffff:ffff:ffff:ffff:fc00::"); });
+EXO_TEST(ip6_lmask_create_43,  { return LMASK6( 43) && CHECK6("ffff:ffff:ffff:ffff:ffff:f800::"); });
+EXO_TEST(ip6_lmask_create_44,  { return LMASK6( 44) && CHECK6("ffff:ffff:ffff:ffff:ffff:f000::"); });
+EXO_TEST(ip6_lmask_create_45,  { return LMASK6( 45) && CHECK6("ffff:ffff:ffff:ffff:ffff:e000::"); });
+EXO_TEST(ip6_lmask_create_46,  { return LMASK6( 46) && CHECK6("ffff:ffff:ffff:ffff:ffff:c000::"); });
+EXO_TEST(ip6_lmask_create_47,  { return LMASK6( 47) && CHECK6("ffff:ffff:ffff:ffff:ffff:8000::"); });
+EXO_TEST(ip6_lmask_create_48,  { return LMASK6( 48) && CHECK6("ffff:ffff:ffff:ffff:ffff::"); });
+EXO_TEST(ip6_lmask_create_49,  { return LMASK6( 49) && CHECK6("ffff:ffff:ffff:ffff:fffe::"); });
+EXO_TEST(ip6_lmask_create_50,  { return LMASK6( 50) && CHECK6("ffff:ffff:ffff:ffff:fffc::"); });
+EXO_TEST(ip6_lmask_create_51,  { return LMASK6( 51) && CHECK6("ffff:ffff:ffff:ffff:fff8::"); });
+EXO_TEST(ip6_lmask_create_52,  { return LMASK6( 52) && CHECK6("ffff:ffff:ffff:ffff:fff0::"); });
+EXO_TEST(ip6_lmask_create_53,  { return LMASK6( 53) && CHECK6("ffff:ffff:ffff:ffff:ffe0::"); });
+EXO_TEST(ip6_lmask_create_54,  { return LMASK6( 54) && CHECK6("ffff:ffff:ffff:ffff:ffc0::"); });
+EXO_TEST(ip6_lmask_create_55,  { return LMASK6( 55) && CHECK6("ffff:ffff:ffff:ffff:ff80::"); });
+EXO_TEST(ip6_lmask_create_56,  { return LMASK6( 56) && CHECK6("ffff:ffff:ffff:ffff:ff00::"); });
+EXO_TEST(ip6_lmask_create_57,  { return LMASK6( 57) && CHECK6("ffff:ffff:ffff:ffff:fe00::"); });
+EXO_TEST(ip6_lmask_create_58,  { return LMASK6( 58) && CHECK6("ffff:ffff:ffff:ffff:fc00::"); });
+EXO_TEST(ip6_lmask_create_59,  { return LMASK6( 59) && CHECK6("ffff:ffff:ffff:ffff:f800::"); });
+EXO_TEST(ip6_lmask_create_60,  { return LMASK6( 60) && CHECK6("ffff:ffff:ffff:ffff:f000::"); });
+EXO_TEST(ip6_lmask_create_61,  { return LMASK6( 61) && CHECK6("ffff:ffff:ffff:ffff:e000::"); });
+EXO_TEST(ip6_lmask_create_62,  { return LMASK6( 62) && CHECK6("ffff:ffff:ffff:ffff:c000::"); });
+EXO_TEST(ip6_lmask_create_63,  { return LMASK6( 63) && CHECK6("ffff:ffff:ffff:ffff:8000::"); });
+EXO_TEST(ip6_lmask_create_64,  { return LMASK6( 64) && CHECK6("ffff:ffff:ffff:ffff::"); });
+EXO_TEST(ip6_lmask_create_65,  { return LMASK6( 65) && CHECK6("ffff:ffff:ffff:fffe::"); });
+EXO_TEST(ip6_lmask_create_66,  { return LMASK6( 66) && CHECK6("ffff:ffff:ffff:fffc::"); });
+EXO_TEST(ip6_lmask_create_67,  { return LMASK6( 67) && CHECK6("ffff:ffff:ffff:fff8::"); });
+EXO_TEST(ip6_lmask_create_68,  { return LMASK6( 68) && CHECK6("ffff:ffff:ffff:fff0::"); });
+EXO_TEST(ip6_lmask_create_69,  { return LMASK6( 69) && CHECK6("ffff:ffff:ffff:ffe0::"); });
+EXO_TEST(ip6_lmask_create_70,  { return LMASK6( 70) && CHECK6("ffff:ffff:ffff:ffc0::"); });
+EXO_TEST(ip6_lmask_create_71,  { return LMASK6( 71) && CHECK6("ffff:ffff:ffff:ff80::"); });
+EXO_TEST(ip6_lmask_create_72,  { return LMASK6( 72) && CHECK6("ffff:ffff:ffff:ff00::"); });
+EXO_TEST(ip6_lmask_create_73,  { return LMASK6( 73) && CHECK6("ffff:ffff:ffff:fe00::"); });
+EXO_TEST(ip6_lmask_create_74,  { return LMASK6( 74) && CHECK6("ffff:ffff:ffff:fc00::"); });
+EXO_TEST(ip6_lmask_create_75,  { return LMASK6( 75) && CHECK6("ffff:ffff:ffff:f800::"); });
+EXO_TEST(ip6_lmask_create_76,  { return LMASK6( 76) && CHECK6("ffff:ffff:ffff:f000::"); });
+EXO_TEST(ip6_lmask_create_77,  { return LMASK6( 77) && CHECK6("ffff:ffff:ffff:e000::"); });
+EXO_TEST(ip6_lmask_create_78,  { return LMASK6( 78) && CHECK6("ffff:ffff:ffff:c000::"); });
+EXO_TEST(ip6_lmask_create_79,  { return LMASK6( 79) && CHECK6("ffff:ffff:ffff:8000::"); });
+EXO_TEST(ip6_lmask_create_80,  { return LMASK6( 80) && CHECK6("ffff:ffff:ffff::"); });
+EXO_TEST(ip6_lmask_create_81,  { return LMASK6( 81) && CHECK6("ffff:ffff:fffe::"); });
+EXO_TEST(ip6_lmask_create_82,  { return LMASK6( 82) && CHECK6("ffff:ffff:fffc::"); });
+EXO_TEST(ip6_lmask_create_83,  { return LMASK6( 83) && CHECK6("ffff:ffff:fff8::"); });
+EXO_TEST(ip6_lmask_create_84,  { return LMASK6( 84) && CHECK6("ffff:ffff:fff0::"); });
+EXO_TEST(ip6_lmask_create_85,  { return LMASK6( 85) && CHECK6("ffff:ffff:ffe0::"); });
+EXO_TEST(ip6_lmask_create_86,  { return LMASK6( 86) && CHECK6("ffff:ffff:ffc0::"); });
+EXO_TEST(ip6_lmask_create_87,  { return LMASK6( 87) && CHECK6("ffff:ffff:ff80::"); });
+EXO_TEST(ip6_lmask_create_88,  { return LMASK6( 88) && CHECK6("ffff:ffff:ff00::"); });
+EXO_TEST(ip6_lmask_create_89,  { return LMASK6( 89) && CHECK6("ffff:ffff:fe00::"); });
+EXO_TEST(ip6_lmask_create_90,  { return LMASK6( 90) && CHECK6("ffff:ffff:fc00::"); });
+EXO_TEST(ip6_lmask_create_91,  { return LMASK6( 91) && CHECK6("ffff:ffff:f800::"); });
+EXO_TEST(ip6_lmask_create_92,  { return LMASK6( 92) && CHECK6("ffff:ffff:f000::"); });
+EXO_TEST(ip6_lmask_create_93,  { return LMASK6( 93) && CHECK6("ffff:ffff:e000::"); });
+EXO_TEST(ip6_lmask_create_94,  { return LMASK6( 94) && CHECK6("ffff:ffff:c000::"); });
+EXO_TEST(ip6_lmask_create_95,  { return LMASK6( 95) && CHECK6("ffff:ffff:8000::"); });
+EXO_TEST(ip6_lmask_create_96,  { return LMASK6( 96) && CHECK6("ffff:ffff::"); });
+EXO_TEST(ip6_lmask_create_97,  { return LMASK6( 97) && CHECK6("ffff:fffe::"); });
+EXO_TEST(ip6_lmask_create_98,  { return LMASK6( 98) && CHECK6("ffff:fffc::"); });
+EXO_TEST(ip6_lmask_create_99,  { return LMASK6( 99) && CHECK6("ffff:fff8::"); });
+EXO_TEST(ip6_lmask_create_100, { return LMASK6(100) && CHECK6("ffff:fff0::"); });
+EXO_TEST(ip6_lmask_create_101, { return LMASK6(101) && CHECK6("ffff:ffe0::"); });
+EXO_TEST(ip6_lmask_create_102, { return LMASK6(102) && CHECK6("ffff:ffc0::"); });
+EXO_TEST(ip6_lmask_create_103, { return LMASK6(103) && CHECK6("ffff:ff80::"); });
+EXO_TEST(ip6_lmask_create_104, { return LMASK6(104) && CHECK6("ffff:ff00::"); });
+EXO_TEST(ip6_lmask_create_105, { return LMASK6(105) && CHECK6("ffff:fe00::"); });
+EXO_TEST(ip6_lmask_create_106, { return LMASK6(106) && CHECK6("ffff:fc00::"); });
+EXO_TEST(ip6_lmask_create_107, { return LMASK6(107) && CHECK6("ffff:f800::"); });
+EXO_TEST(ip6_lmask_create_108, { return LMASK6(108) && CHECK6("ffff:f000::"); });
+EXO_TEST(ip6_lmask_create_109, { return LMASK6(109) && CHECK6("ffff:e000::"); });
+EXO_TEST(ip6_lmask_create_110, { return LMASK6(110) && CHECK6("ffff:c000::"); });
+EXO_TEST(ip6_lmask_create_111, { return LMASK6(111) && CHECK6("ffff:8000::"); });
+EXO_TEST(ip6_lmask_create_112, { return LMASK6(112) && CHECK6("ffff::"); });
+EXO_TEST(ip6_lmask_create_113, { return LMASK6(113) && CHECK6("fffe::"); });
+EXO_TEST(ip6_lmask_create_114, { return LMASK6(114) && CHECK6("fffc::"); });
+EXO_TEST(ip6_lmask_create_115, { return LMASK6(115) && CHECK6("fff8::"); });
+EXO_TEST(ip6_lmask_create_116, { return LMASK6(116) && CHECK6("fff0::"); });
+EXO_TEST(ip6_lmask_create_117, { return LMASK6(117) && CHECK6("ffe0::"); });
+EXO_TEST(ip6_lmask_create_118, { return LMASK6(118) && CHECK6("ffc0::"); });
+EXO_TEST(ip6_lmask_create_119, { return LMASK6(119) && CHECK6("ff80::"); });
+EXO_TEST(ip6_lmask_create_120, { return LMASK6(120) && CHECK6("ff00::"); });
+EXO_TEST(ip6_lmask_create_121, { return LMASK6(121) && CHECK6("fe00::"); });
+EXO_TEST(ip6_lmask_create_122, { return LMASK6(122) && CHECK6("fc00::"); });
+EXO_TEST(ip6_lmask_create_123, { return LMASK6(123) && CHECK6("f800::"); });
+EXO_TEST(ip6_lmask_create_124, { return LMASK6(124) && CHECK6("f000::"); });
+EXO_TEST(ip6_lmask_create_125, { return LMASK6(125) && CHECK6("e000::"); });
+EXO_TEST(ip6_lmask_create_126, { return LMASK6(126) && CHECK6("c000::"); });
+EXO_TEST(ip6_lmask_create_127, { return LMASK6(127) && CHECK6("8000::"); });
+EXO_TEST(ip6_lmask_create_128, { return LMASK6(128) && CHECK6("::"); });
+
+/* Check IPv6 right to left masks */
+EXO_TEST(ip6_rmask_create_0,   { return RMASK6(  0) && CHECK6("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_1,   { return RMASK6(  1) && CHECK6("7fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_2,   { return RMASK6(  2) && CHECK6("3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_3,   { return RMASK6(  3) && CHECK6("1fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_4,   { return RMASK6(  4) && CHECK6("fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_5,   { return RMASK6(  5) && CHECK6("7ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_6,   { return RMASK6(  6) && CHECK6("3ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_7,   { return RMASK6(  7) && CHECK6("1ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_8,   { return RMASK6(  8) && CHECK6("ff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_9,   { return RMASK6(  9) && CHECK6("7f:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_10,  { return RMASK6( 10) && CHECK6("3f:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_11,  { return RMASK6( 11) && CHECK6("1f:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_12,  { return RMASK6( 12) && CHECK6("f:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_13,  { return RMASK6( 13) && CHECK6("7:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_14,  { return RMASK6( 14) && CHECK6("3:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_15,  { return RMASK6( 15) && CHECK6("1:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); });
+EXO_TEST(ip6_rmask_create_16,  { return RMASK6( 16) && (CHECK6("0:ffff:ffff:ffff:ffff:ffff:ffff:ffff") || CHECK6("::ffff:ffff:ffff:ffff:ffff:ffff:ffff") || CHECK6("ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_17,  { return RMASK6( 17) && (CHECK6("0:7fff:ffff:ffff:ffff:ffff:ffff:ffff") || CHECK6("::7fff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_18,  { return RMASK6( 18) && (CHECK6("0:3fff:ffff:ffff:ffff:ffff:ffff:ffff") || CHECK6("::3fff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_19,  { return RMASK6( 19) && (CHECK6("0:1fff:ffff:ffff:ffff:ffff:ffff:ffff") || CHECK6("::1fff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_20,  { return RMASK6( 20) && (CHECK6("0:fff:ffff:ffff:ffff:ffff:ffff:ffff")  || CHECK6("::fff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_21,  { return RMASK6( 21) && (CHECK6("0:7ff:ffff:ffff:ffff:ffff:ffff:ffff")  || CHECK6("::7ff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_22,  { return RMASK6( 22) && (CHECK6("0:3ff:ffff:ffff:ffff:ffff:ffff:ffff")  || CHECK6("::3ff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_23,  { return RMASK6( 23) && (CHECK6("0:1ff:ffff:ffff:ffff:ffff:ffff:ffff")  || CHECK6("::1ff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_24,  { return RMASK6( 24) && (CHECK6("0:ff:ffff:ffff:ffff:ffff:ffff:ffff")   || CHECK6("::ff:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_25,  { return RMASK6( 25) && (CHECK6("0:7f:ffff:ffff:ffff:ffff:ffff:ffff")   || CHECK6("::7f:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_26,  { return RMASK6( 26) && (CHECK6("0:3f:ffff:ffff:ffff:ffff:ffff:ffff")   || CHECK6("::3f:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_27,  { return RMASK6( 27) && (CHECK6("0:1f:ffff:ffff:ffff:ffff:ffff:ffff")   || CHECK6("::1f:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_28,  { return RMASK6( 28) && (CHECK6("0:f:ffff:ffff:ffff:ffff:ffff:ffff")    || CHECK6("::f:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_29,  { return RMASK6( 29) && (CHECK6("0:7:ffff:ffff:ffff:ffff:ffff:ffff")    || CHECK6("::7:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_30,  { return RMASK6( 30) && (CHECK6("0:3:ffff:ffff:ffff:ffff:ffff:ffff")    || CHECK6("::3:ffff:ffff:ffff:ffff:ffff:ffff")); });
+EXO_TEST(ip6_rmask_create_31,  { return RMASK6( 31) && (CHECK6("0:1:ffff:ffff:ffff:ffff:ffff:ffff")    || CHECK6("::1:ffff:ffff:ffff:ffff:ffff:ffff")); });
+
+EXO_TEST(check_ban_setup_1, {
+	return	ip_convert_to_binary("2001::201:2ff:fefa:0",    &ban6.lo) &&
+			ip_convert_to_binary("2001::201:2ff:fefa:ffff", &ban6.hi) &&
+			ip_convert_to_binary("192.168.0.0",             &ban4.lo) &&
+			ip_convert_to_binary("192.168.0.255",           &ban4.hi);
+});
+
+EXO_TEST(check_ban_ipv4_1, {
+	struct ip_addr_encap addr; ip_convert_to_binary("192.168.0.0", &addr);
+	return ip_in_range(&addr, &ban4);
+});
+
+EXO_TEST(check_ban_ipv4_2, {
+	struct ip_addr_encap addr; ip_convert_to_binary("192.168.0.1", &addr);
+	return ip_in_range(&addr, &ban4);
+});
+
+EXO_TEST(check_ban_ipv4_3, {
+	struct ip_addr_encap addr; ip_convert_to_binary("192.168.0.255", &addr);
+	return ip_in_range(&addr, &ban4);
+});
+
+EXO_TEST(check_ban_ipv4_4, {
+	struct ip_addr_encap addr; ip_convert_to_binary("192.168.1.0", &addr);
+	return !ip_in_range(&addr, &ban4);
+});
+
+EXO_TEST(check_ban_ipv4_5, {
+	struct ip_addr_encap addr; ip_convert_to_binary("192.167.255.255", &addr);
+	return !ip_in_range(&addr, &ban4);
+});
+
+EXO_TEST(check_ban_ipv6_1, {
+	if (!ipv6) return 1;
+	struct ip_addr_encap addr; ip_convert_to_binary("2001::201:2ff:fefa:0", &addr);
+	return ip_in_range(&addr, &ban6);
+});
+
+EXO_TEST(check_ban_ipv6_2, {
+	if (!ipv6) return 1;
+	struct ip_addr_encap addr; ip_convert_to_binary("2001::201:2ff:fefa:1", &addr);
+	return ip_in_range(&addr, &ban6);
+});
+
+EXO_TEST(check_ban_ipv6_3, {
+	if (!ipv6) return 1;
+	struct ip_addr_encap addr; ip_convert_to_binary("2001::201:2ff:fefa:fffe", &addr);
+	return ip_in_range(&addr, &ban6);
+});
+
+EXO_TEST(check_ban_ipv6_4, {
+	if (!ipv6) return 1;
+	struct ip_addr_encap addr; ip_convert_to_binary("2001::201:2ff:fefa:ffff", &addr);
+	return ip_in_range(&addr, &ban6);
+});
+
+EXO_TEST(check_ban_ipv6_5, {
+	if (!ipv6) return 1;
+	struct ip_addr_encap addr; ip_convert_to_binary("2001::201:2ff:fefb:0", &addr);
+	return !ip_in_range(&addr, &ban6);
+});
+
+EXO_TEST(check_ban_ipv6_6, {
+	if (!ipv6) return 1;
+	struct ip_addr_encap addr; ip_convert_to_binary("2001::201:2ff:fef9:ffff", &addr);
+	return !ip_in_range(&addr, &ban6);
+});
+
+EXO_TEST(check_ban_afmix_1, {
+	if (!ipv6) return 1;
+	struct ip_addr_encap addr; ip_convert_to_binary("2001::201:2ff:fef9:ffff", &addr);
+	return !ip_in_range(&addr, &ban4);
+});
+
+EXO_TEST(check_ban_afmix_2, {
+	struct ip_addr_encap addr; ip_convert_to_binary("10.20.30.40", &addr);
+	return !ip_in_range(&addr, &ban6);
+});
+
+EXO_TEST(ip4_bitwise_AND_1, {
+	ip_convert_to_binary("255.255.255.255", &ip4_a);
+	ip_convert_to_binary("255.255.255.0",   &ip4_b);
+	ip_mask_apply_AND(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "255.255.255.0");
+});
+
+EXO_TEST(ip4_bitwise_AND_2, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("255.255.255.0",   &ip4_b);
+	ip_mask_apply_AND(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "192.168.217.0");
+});
+
+EXO_TEST(ip4_bitwise_AND_3, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("255.255.0.0",     &ip4_b);
+	ip_mask_apply_AND(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "192.168.0.0");
+});
+
+EXO_TEST(ip4_bitwise_AND_4, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("255.0.0.0",       &ip4_b);
+	ip_mask_apply_AND(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "192.0.0.0");
+});
+
+EXO_TEST(ip4_bitwise_AND_5, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("0.0.0.0",   &ip4_b);
+	ip_mask_apply_AND(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "0.0.0.0");
+});
+
+EXO_TEST(ip4_bitwise_OR_1, {
+	ip_convert_to_binary("255.255.255.255", &ip4_a);
+	ip_convert_to_binary("255.255.255.0",   &ip4_b);
+	ip_mask_apply_OR(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "255.255.255.255");
+});
+
+EXO_TEST(ip4_bitwise_OR_2, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("255.255.255.0",   &ip4_b);
+	ip_mask_apply_OR(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "255.255.255.113");
+});
+
+EXO_TEST(ip4_bitwise_OR_3, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("255.255.0.0",     &ip4_b);
+	ip_mask_apply_OR(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "255.255.217.113");
+});
+
+EXO_TEST(ip4_bitwise_OR_4, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("255.0.0.0",       &ip4_b);
+	ip_mask_apply_OR(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "255.168.217.113");
+});
+
+EXO_TEST(ip4_bitwise_OR_5, {
+	ip_convert_to_binary("192.168.217.113", &ip4_a);
+	ip_convert_to_binary("0.0.0.0",         &ip4_b);
+	ip_mask_apply_OR(&ip4_a, &ip4_b, &ip4_c);
+	return !strcmp(ip_convert_to_string(&ip4_c), "192.168.217.113");
+});
+
+EXO_TEST(ip6_bitwise_AND_1, {
+	if (!ipv6) return 1;
+	ip_convert_to_binary("7f7f:ffff:ffff:3f3f:ffff:ffff:ffff:ffff", &ip6_a);
+	ip_convert_to_binary("ffff:ffff:ffff:ffff:ffff:ffff:ffff:0",    &ip6_b);
+	ip_mask_apply_AND(&ip6_a, &ip6_b, &ip6_c);
+	return  !strcmp(ip_convert_to_string(&ip6_c), "7f7f:ffff:ffff:3f3f:ffff:ffff:ffff:0") ||
+			!strcmp(ip_convert_to_string(&ip6_c), "7f7f:ffff:ffff:3f3f:ffff:ffff:ffff::");
+});
+
+EXO_TEST(ip6_bitwise_AND_2, {
+	if (!ipv6) return 1;
+	ip_convert_to_binary("7777:cccc:3333:1111:ffff:ffff:ffff:ffff", &ip6_a);
+	ip_convert_to_binary("ffff:ffff:ffff:ffff::",    &ip6_b);
+	ip_mask_apply_AND(&ip6_a, &ip6_b, &ip6_c);
+	return !strcmp(ip_convert_to_string(&ip6_c), "7777:cccc:3333:1111::");
+});
+
+EXO_TEST(ip6_bitwise_AND_3, {
+	if (!ipv6) return 1;
+	ip_convert_to_binary("7777:cccc:3333:1111:ffff:ffff:ffff:ffff", &ip6_a);
+	ip_convert_to_binary("::",    &ip6_b);
+	ip_mask_apply_AND(&ip6_a, &ip6_b, &ip6_c);
+	return !strcmp(ip_convert_to_string(&ip6_c), "::");
+});
+
+EXO_TEST(ip6_bitwise_OR_1, {
+	if (!ipv6) return 1;
+	ip_convert_to_binary("7f7f:ffff:ffff:3f3f:ffff:ffff:ffff:ffff", &ip6_a);
+	ip_convert_to_binary("ffff:ffff:ffff:ffff:ffff:ffff:ffff:0",    &ip6_b);
+	ip_mask_apply_OR(&ip6_a, &ip6_b, &ip6_c);
+	return !strcmp(ip_convert_to_string(&ip6_c), "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
+});
+
+EXO_TEST(ip6_bitwise_OR_2, {
+	if (!ipv6) return 1;
+	ip_convert_to_binary("7777:cccc:3333:1111:ffff:ffff:ffff:ffff", &ip6_a);
+	ip_convert_to_binary("ffff:ffff:ffff:ffff:ffff:ffff:ffff:0",    &ip6_b);
+	ip_mask_apply_OR(&ip6_a, &ip6_b, &ip6_c);
+	return !strcmp(ip_convert_to_string(&ip6_c), "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff");
+});
+
+EXO_TEST(ip6_bitwise_OR_3, {
+	if (!ipv6) return 1;
+	ip_convert_to_binary("7777:cccc:3333:1111:ffff:ffff:ffff:1c1c", &ip6_a);
+	ip_convert_to_binary("::",    &ip6_b);
+	ip_mask_apply_OR(&ip6_a, &ip6_b, &ip6_c);
+	return !strcmp(ip_convert_to_string(&ip6_c), "7777:cccc:3333:1111:ffff:ffff:ffff:1c1c");
+});
+
+EXO_TEST(ip_range_1, {
+	struct ip_range range; memset(&range, 0, sizeof(range));
+	return ip_convert_address_to_range("192.168.0.1", &range) && memcmp(&range.lo, &range.hi, sizeof(struct ip_addr_encap)) == 0;
+});
+
+EXO_TEST(ip_range_2, {
+	struct ip_range range; memset(&range, 0, sizeof(range));
+	return ip_convert_address_to_range("192.168.0.0-192.168.255.255", &range) && range.lo.af == range.hi.af && memcmp(&range.lo, &range.hi, sizeof(struct ip_addr_encap)) != 0;
+});
+
+EXO_TEST(ip_range_3, {
+	struct ip_range range; memset(&range, 0, sizeof(range));
+	return ip_convert_address_to_range("192.168.0.0/16", &range) && range.lo.af == range.hi.af && memcmp(&range.lo, &range.hi, sizeof(struct ip_addr_encap)) != 0;
+});
+
+EXO_TEST(ip_range_4, {
+	struct ip_range range1; memset(&range1, 0, sizeof(range1));
+	struct ip_range range2; memset(&range2, 0, sizeof(range2));
+	return ip_convert_address_to_range("192.168.0.0/16", &range1) && ip_convert_address_to_range("192.168.0.0-192.168.255.255", &range2) && memcmp(&range1, &range2, sizeof(struct ip_range)) == 0;
+});
+
+
+EXO_TEST(shutdown_network, {
+    return net_destroy() == 0;
+});

autotest/test_list.tcc

@@ -0,0 +1,137 @@
+#include <uhub.h>
+
+static struct linked_list* list = NULL;
+
+static char A[2] = { 'A', 0 };
+static char B[2] = { 'B', 0 };
+static char C[2] = { 'C', 0 };
+
+static void null_free(void* ptr)
+{
+	(void) ptr;
+}
+
+
+EXO_TEST(list_create_destroy, {
+	int ok = 0;
+	struct linked_list* alist;
+	alist = list_create();
+	if (alist) ok = 1;
+	list_destroy(alist);
+	return ok;
+});
+
+EXO_TEST(list_create, {
+	list = list_create();
+	return list->size == 0;
+});
+
+EXO_TEST(list_append_1, {
+	list_append(list, (char*) A);
+	return list->size == 1;
+});
+
+EXO_TEST(list_remove_1, {
+	list_remove(list, (char*) A);
+	return list->size == 0;
+});
+
+
+EXO_TEST(list_append_2, {
+	list_append(list, A);
+	list_append(list, B);
+	return list->size == 2;
+});
+
+EXO_TEST(list_remove_2, {
+	list_remove(list, (char*) A);
+	return list->size == 1;
+});
+
+EXO_TEST(list_remove_3, {
+	list_remove(list, (char*) A); /* already removed, so should have no effect */
+	return list->size == 1;
+});
+
+EXO_TEST(list_remove_4, {
+	list_remove(list, (char*) B); /* already removed, so should have no effect */
+	return list->size == 0;
+});
+
+EXO_TEST(list_append_3, {
+	list_append(list, A);
+	list_append(list, B);
+	list_append(list, C);
+	return list->size == 3;
+});
+
+EXO_TEST(list_append_4, {
+	list_append(list, A); /* OK. adding the same one *AGAIN* */
+	return list->size == 4;
+});
+
+EXO_TEST(list_remove_5, {
+	list_remove(list, A); /* removing the first one. */
+	return list->size == 3;
+});
+
+EXO_TEST(list_get_index_1, {
+	return list_get_index(list, 0) == B;
+});
+
+EXO_TEST(list_get_index_2, {
+	return list_get_index(list, 1) == C;
+});
+
+EXO_TEST(list_get_index_3, {
+	return list_get_index(list, 2) == A;
+});
+
+EXO_TEST(list_get_index_4, {
+	return list_get_index(list, 3) == NULL;
+});
+
+EXO_TEST(list_get_first_1, {
+	return list_get_first(list) == B;
+});
+
+EXO_TEST(list_get_first_next_1, {
+	return list_get_next(list) == C;
+});
+
+EXO_TEST(list_get_first_next_2, {
+	return list_get_next(list) == A;
+});
+
+EXO_TEST(list_get_last_1, {
+	return list_get_last(list) == A;
+});
+
+EXO_TEST(list_get_last_prev_1, {
+	return list_get_prev(list) == C;
+});
+
+EXO_TEST(list_get_last_prev_2, {
+	return list_get_prev(list) == B;
+});
+
+EXO_TEST(list_get_last_prev_next_1, {
+	return list_get_next(list) == C;
+});
+
+EXO_TEST(list_clear, {
+	list_clear(list, &null_free);
+	return list->size == 0 && list->first == 0 && list->last == 0 && list->iterator == 0;
+});
+
+
+EXO_TEST(list_destroy_1, {
+	list_destroy(list);
+	return 1;
+});
+
+EXO_TEST(list_destroy_2, {
+	list_destroy(0);
+	return 1;
+});
+

autotest/test_memory.tcc

@@ -0,0 +1,37 @@
+#include <uhub.h>
+
+struct adc_message* g_msg;
+
+EXO_TEST(test_message_refc_1, {
+	g_msg = adc_msg_create("IMSG Hello\\sWorld!");
+	return g_msg != NULL;
+});
+
+EXO_TEST(test_message_refc_2, {
+	return g_msg->references == 1;
+});
+
+EXO_TEST(test_message_refc_3, {
+	adc_msg_incref(g_msg);
+	return g_msg->references == 2;
+});
+
+EXO_TEST(test_message_refc_4, {
+	adc_msg_incref(g_msg);
+	return g_msg->references == 3;
+});
+
+EXO_TEST(test_message_refc_5, {
+	adc_msg_free(g_msg);
+	return g_msg->references == 2;
+});
+
+EXO_TEST(test_message_refc_6, {
+	adc_msg_free(g_msg);
+	return g_msg->references == 1;
+});
+
+EXO_TEST(test_message_refc_7, {
+	adc_msg_free(g_msg);
+	return 1;
+});

autotest/test_message.tcc

@@ -0,0 +1,560 @@
+#include <uhub.h>
+static struct hub_user* g_user = 0;
+static const char* test_string1 = "IINF AAfoo BBbar CCwhat\n";
+static const char* test_string2 = "BMSG AAAB Hello\\sWorld!\n";
+static const char* test_string3 = "BINF AAAB IDAN7ZMSLIEBL53OPTM7WXGSTXUS3XOY6KQS5LBGX NIFriend DEstuff SL3 SS0 SF0 VEQuickDC/0.4.17 US6430 SUADC0,TCP4,UDP4 I4127.0.0.1 HO5 HN1 AW\n";
+static const char* test_string4 = "BMSG AAAB\n";
+static const char* test_string5 = "BMSG AAAB \n";
+
+static void create_test_user()
+{
+	if (g_user)
+		return;
+
+	g_user = (struct hub_user*) malloc(sizeof(struct hub_user));
+	memset(g_user, 0, sizeof(struct hub_user));
+	memcpy(g_user->id.nick, "exotic-tester", 13);
+	g_user->id.sid = 1;
+}
+
+EXO_TEST(adc_message_first, {
+	create_test_user();	
+	return g_user != 0;
+});
+
+EXO_TEST(adc_message_parse_1, {
+	struct adc_message* msg = adc_msg_create("IMSG Hello\\sWorld!");
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_2, {
+	struct adc_message* msg = adc_msg_create(test_string2);
+	int ok = (msg != NULL);
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_3, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "BMSG AAAB Hello\\sWorld!", 23);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_4, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "BMSG AAAC Hello\\sWorld!", 23);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_5, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "BMSG AAAB Hello\\sWorld!\n", 24);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_6, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB +TCP4 Hello\\sWorld!\n", 30);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_7, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB -TCP4 Hello\\sWorld!\n", 30);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_8, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB +TCP4+UDP4 Hello\\sWorld!\n", 35);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_9, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB +TCP4-UDP4 Hello\\sWorld!\n", 35);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_10, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB -TCP4-UDP4 Hello\\sWorld!\n", 35);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_11, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB Hello\\sWorld!\n", 24);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_12, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB  Hello\\sWorld!\n", 25);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_13, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB +jalla Hello\\sWorld!\n", 31);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_14, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB +jall Hello\\sWorld!\n", 30);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_15, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "FMSG AAAB +TCP4 Hello\\sWorld!\n", 30);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_16, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "BMSG AAAB Hello\\sWorld!\n", 24);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_17, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "BMSG aaab Hello\\sWorld!\n", 24);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_18, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "DMSG AAAB AAAC Hello\\sthere!\n", 29);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_19, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "DMSG AAAC AAAB Hello\\sthere!\n", 29);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_20, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "EMSG AAAB AAAC Hello\\sthere!\n", 29);
+	int ok = msg != NULL;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_parse_21, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "EMSG AAAC AAAB Hello\\sthere!\n", 29);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_22, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, "\n", 0);
+	return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_23, {
+        struct adc_message* msg = adc_msg_parse_verify(g_user, "\r\n", 1);
+        return msg == NULL;
+});
+
+EXO_TEST(adc_message_parse_24, {
+        struct adc_message* msg = adc_msg_parse_verify(g_user, "EMSG AAAC\0AAAB Hello\\sthere!\n", 29);
+        return msg == NULL;
+});
+
+
+
+
+EXO_TEST(adc_message_add_arg_1, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_add_argument(msg, "XXwtf?");
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat XXwtf?\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_add_arg_2, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_add_named_argument(msg, "XX", "wtf?");
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat XXwtf?\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_remove_arg_1, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_remove_named_argument(msg, "AA");
+	int ok = strcmp(msg->cache, "IINF BBbar CCwhat\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_remove_arg_2, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_remove_named_argument(msg, "BB");
+	int ok = strcmp(msg->cache, "IINF AAfoo CCwhat\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_remove_arg_3, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_remove_named_argument(msg, "CC");
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_remove_arg_4, {
+	/* this ensures we can remove the last element also */
+	struct adc_message* msg = adc_msg_parse_verify(g_user, test_string3, strlen(test_string3));
+	adc_msg_remove_named_argument(msg, "AW");
+	int ok = strcmp(msg->cache, "BINF AAAB IDAN7ZMSLIEBL53OPTM7WXGSTXUS3XOY6KQS5LBGX NIFriend DEstuff SL3 SS0 SF0 VEQuickDC/0.4.17 US6430 SUADC0,TCP4,UDP4 I4127.0.0.1 HO5 HN1\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_replace_arg_1, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_remove_named_argument(msg, "AA");
+	int ok = strcmp(msg->cache, "IINF BBbar CCwhat\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_replace_arg_2, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_remove_named_argument(msg, "BB");
+	int ok = strcmp(msg->cache, "IINF AAfoo CCwhat\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_replace_arg_3, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_remove_named_argument(msg, "CC");
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_arg_1, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_argument(msg, 0);
+	int ok = strcmp(c, "AAfoo") == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_arg_2, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_argument(msg, 1);
+	int ok = strcmp(c, "BBbar") == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_arg_3, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_argument(msg, 2);
+	int ok = strcmp(c, "CCwhat") == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_arg_4, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_argument(msg, 3);
+	int ok = c == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_named_arg_1, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_named_argument(msg, "AA");
+	int ok = strcmp(c, "foo") == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_named_arg_2, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_named_argument(msg, "BB");
+	int ok = strcmp(c, "bar") == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_named_arg_3, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_named_argument(msg, "CC");
+	int ok = strcmp(c, "what") == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_get_named_arg_4, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	char* c = adc_msg_get_named_argument(msg, "XX");
+	int ok = c == 0;
+	adc_msg_free(msg);
+	hub_free(c);
+	return ok;
+});
+
+EXO_TEST(adc_message_has_named_arg_1, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	int n = adc_msg_has_named_argument(msg, "XX");
+	adc_msg_free(msg);
+	return n == 0;
+});
+
+EXO_TEST(adc_message_has_named_arg_2, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	int n = adc_msg_has_named_argument(msg, "BB");
+	adc_msg_free(msg);
+	return n == 1;
+});
+
+EXO_TEST(adc_message_has_named_arg_3, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	int n = adc_msg_has_named_argument(msg, "CC");
+	adc_msg_free(msg);
+	return n == 1;
+});
+
+EXO_TEST(adc_message_has_named_arg_4, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_add_argument(msg, "XXwtf?");
+	int n = adc_msg_has_named_argument(msg, "XX");
+	adc_msg_free(msg);
+	return n == 1;
+});
+
+EXO_TEST(adc_message_has_named_arg_5, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_add_argument(msg, "XXone");
+	adc_msg_add_argument(msg, "XXtwo");
+	int n = adc_msg_has_named_argument(msg, "XX");
+	adc_msg_free(msg);
+	return n == 2;
+});
+
+EXO_TEST(adc_message_has_named_arg_6, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_add_argument(msg, "XXone");
+	adc_msg_add_argument(msg, "XXtwo");
+	adc_msg_add_argument(msg, "XXthree");
+	int n = adc_msg_has_named_argument(msg, "XX");
+	adc_msg_free(msg);
+	return n == 3;
+});
+
+EXO_TEST(adc_message_has_named_arg_7, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	int n = adc_msg_has_named_argument(msg, "AA");
+	adc_msg_free(msg);
+	return n == 1;
+});
+
+EXO_TEST(adc_message_terminate_1, {
+	struct adc_message* msg = adc_msg_create("IINF AAfoo BBbar CCwhat");
+	adc_msg_unterminate(msg);
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_terminate_2, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_unterminate(msg);
+	adc_msg_terminate(msg);
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_terminate_3, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_unterminate(msg);
+	adc_msg_terminate(msg);
+	adc_msg_unterminate(msg);
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_terminate_4, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_unterminate(msg);
+	adc_msg_terminate(msg);
+	adc_msg_terminate(msg);
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_terminate_5, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_terminate(msg);
+	adc_msg_terminate(msg);
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat\n") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_terminate_6, {
+	struct adc_message* msg = adc_msg_create(test_string1);
+	adc_msg_unterminate(msg);
+	adc_msg_unterminate(msg);
+	int ok = strcmp(msg->cache, "IINF AAfoo BBbar CCwhat") == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_escape_1, {
+	char* s = adc_msg_escape(test_string1);
+	int ok = strcmp(s, "IINF\\sAAfoo\\sBBbar\\sCCwhat\\n") == 0;
+	hub_free(s);
+	return ok;
+});
+
+EXO_TEST(adc_message_escape_2, {
+	char* s = adc_msg_escape(test_string1);
+	char* s2 = adc_msg_unescape(s);
+	int ok = strcmp(s2, test_string1) == 0;
+	hub_free(s);
+	hub_free(s2);
+	return ok;
+});
+
+EXO_TEST(adc_message_escape_3, {
+	char* s = adc_msg_unescape(test_string1);
+	int ok = strcmp(s, test_string1) == 0;
+	hub_free(s);
+	return ok;
+});
+
+EXO_TEST(adc_message_copy_1, {
+	struct adc_message* msg1 = adc_msg_create(test_string1);
+	struct adc_message* msg2 = adc_msg_copy(msg1);
+	int ok = strncmp(msg1->cache, msg2->cache, msg1->length) == 0;
+	adc_msg_free(msg1);
+	adc_msg_free(msg2);
+	return ok;
+});
+
+EXO_TEST(adc_message_copy_2, {
+	struct adc_message* msg1 = adc_msg_parse_verify(g_user, test_string2, strlen(test_string2));
+	struct adc_message* msg2 = adc_msg_copy(msg1);
+	int ok = msg1->source == msg2->source;
+	adc_msg_free(msg1);
+	adc_msg_free(msg2);
+	return ok;
+});
+
+EXO_TEST(adc_message_copy_3, {
+	struct adc_message* msg1 = adc_msg_parse_verify(g_user, test_string2, strlen(test_string2));
+	struct adc_message* msg2 = adc_msg_copy(msg1);
+	int ok = (	msg1->cmd        == msg2->cmd &&
+				msg1->source     == msg2->source &&
+				msg1->target     == msg2->target &&
+				msg1->length     == msg2->length &&
+				msg1->priority   == msg2->priority &&
+				msg1->capacity   == msg2->capacity && /* might not be true! */
+				strcmp(msg1->cache, msg2->cache) == 0);
+	adc_msg_free(msg1);
+	adc_msg_free(msg2);
+	return ok;
+});
+
+EXO_TEST(adc_message_copy_4, {
+	struct adc_message* msg1 = adc_msg_parse_verify(g_user, test_string2, strlen(test_string2));
+	struct adc_message* msg2 = adc_msg_copy(msg1);
+	int ok = msg2->target == 0;
+	adc_msg_free(msg1);
+	adc_msg_free(msg2);
+	return ok;
+});
+
+
+static struct adc_message* updater1 = NULL;
+static struct adc_message* updater2 = NULL;
+static const char* update_info1 = "BINF AAAB IDABCDEFGHIJKLMNOPQRSTUVWXYZ1234567ABCDEF NItester SL10 SS12817126127 SF4125 HN3 HR0 HO0 VE++\\s0.698 US104857600 DS81911808 SUTCP4,UDP4 I4127.0.0.1\n";
+static const char* update_info2 = "BINF AAAB HN34 SF4126 SS12817526127\n";
+
+EXO_TEST(adc_message_update_1, {
+	updater1 = adc_msg_parse_verify(g_user, update_info1, strlen(update_info1));
+	return updater1 != NULL;
+});
+
+EXO_TEST(adc_message_update_2, {
+	user_set_info(g_user, updater1);
+	return strcmp(g_user->info->cache, updater1->cache) == 0 && g_user->info == updater1;
+});
+
+EXO_TEST(adc_message_update_3, {
+	updater2 = adc_msg_parse_verify(g_user, update_info2, strlen(update_info2));
+	return updater2 != NULL;
+});
+
+EXO_TEST(adc_message_update_4, {
+	user_update_info(g_user, updater2);
+	return strlen(g_user->info->cache) == 159;
+});
+
+EXO_TEST(adc_message_update_4_cleanup, {
+	adc_msg_free(updater1);
+	updater1 = 0;
+	adc_msg_free(updater2);
+	updater2 = 0;
+	adc_msg_free(g_user->info);
+	g_user->info = 0;
+	return 1;
+});
+
+
+EXO_TEST(adc_message_empty_1, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, test_string2, strlen(test_string2));
+	int ok = adc_msg_is_empty(msg) == 0;
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_empty_2, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, test_string4, strlen(test_string4));
+	int ok = adc_msg_is_empty(msg);
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_empty_3, {
+	struct adc_message* msg = adc_msg_parse_verify(g_user, test_string5, strlen(test_string5));
+	int ok = adc_msg_is_empty(msg) == 0; /* arguably not empty, contains a space */
+	adc_msg_free(msg);
+	return ok;
+});
+
+EXO_TEST(adc_message_last, {
+	hub_free(g_user);
+	g_user = 0;
+	return g_user == 0;
+});
+
+

autotest/test_misc.tcc

@@ -0,0 +1,111 @@
+#include <uhub.h>
+
+EXO_TEST(is_num_0,  { return is_num('0'); });
+EXO_TEST(is_num_1,  { return is_num('1'); });
+EXO_TEST(is_num_2,  { return is_num('2'); });
+EXO_TEST(is_num_3,  { return is_num('3'); });
+EXO_TEST(is_num_4,  { return is_num('4'); });
+EXO_TEST(is_num_5,  { return is_num('5'); });
+EXO_TEST(is_num_6,  { return is_num('6'); });
+EXO_TEST(is_num_7,  { return is_num('7'); });
+EXO_TEST(is_num_8,  { return is_num('8'); });
+EXO_TEST(is_num_9,  { return is_num('9'); });
+EXO_TEST(is_num_10, { return !is_num('/'); });
+EXO_TEST(is_num_11, { return !is_num(':'); });
+
+EXO_TEST(is_space_1, { return is_space(' '); });
+EXO_TEST(is_space_2, { return !is_space('\t'); });
+EXO_TEST(is_white_space_1, { return is_white_space(' '); });
+EXO_TEST(is_white_space_2, { return is_white_space('\t'); });
+EXO_TEST(is_white_space_3, { return !is_white_space('A'); });
+EXO_TEST(is_white_space_4, { return !is_white_space('!'); });
+
+EXO_TEST(itoa_1, { return strcmp(uhub_itoa(0), "0") == 0; });
+EXO_TEST(itoa_2, { return strcmp(uhub_itoa(1), "1") == 0; });
+EXO_TEST(itoa_3, { return strcmp(uhub_itoa(-1), "-1") == 0; });
+EXO_TEST(itoa_4, { return strcmp(uhub_itoa(255), "255") == 0; });
+EXO_TEST(itoa_5, { return strcmp(uhub_itoa(-3), "-3") == 0; });
+EXO_TEST(itoa_6, { return strcmp(uhub_itoa(-2147483647), "-2147483647") == 0; });
+EXO_TEST(itoa_7, { return strcmp(uhub_itoa(2147483647), "2147483647") == 0; });
+EXO_TEST(itoa_8, { return strcmp(uhub_itoa(-65536), "-65536") == 0; });
+
+EXO_TEST(base32_valid_1,  { return is_valid_base32_char('A'); });
+EXO_TEST(base32_valid_2,  { return is_valid_base32_char('B'); });
+EXO_TEST(base32_valid_3,  { return is_valid_base32_char('C'); });
+EXO_TEST(base32_valid_4,  { return is_valid_base32_char('D'); });
+EXO_TEST(base32_valid_5,  { return is_valid_base32_char('E'); });
+EXO_TEST(base32_valid_6,  { return is_valid_base32_char('F'); });
+EXO_TEST(base32_valid_7,  { return is_valid_base32_char('G'); });
+EXO_TEST(base32_valid_8,  { return is_valid_base32_char('H'); });
+EXO_TEST(base32_valid_9,  { return is_valid_base32_char('I'); });
+EXO_TEST(base32_valid_10, { return is_valid_base32_char('J'); });
+EXO_TEST(base32_valid_11, { return is_valid_base32_char('K'); });
+EXO_TEST(base32_valid_12, { return is_valid_base32_char('L'); });
+EXO_TEST(base32_valid_13, { return is_valid_base32_char('M'); });
+EXO_TEST(base32_valid_14, { return is_valid_base32_char('N'); });
+EXO_TEST(base32_valid_15, { return is_valid_base32_char('O'); });
+EXO_TEST(base32_valid_16, { return is_valid_base32_char('P'); });
+EXO_TEST(base32_valid_17, { return is_valid_base32_char('Q'); });
+EXO_TEST(base32_valid_18, { return is_valid_base32_char('R'); });
+EXO_TEST(base32_valid_19, { return is_valid_base32_char('S'); });
+EXO_TEST(base32_valid_20, { return is_valid_base32_char('T'); });
+EXO_TEST(base32_valid_21, { return is_valid_base32_char('U'); });
+EXO_TEST(base32_valid_22, { return is_valid_base32_char('V'); });
+EXO_TEST(base32_valid_23, { return is_valid_base32_char('W'); });
+EXO_TEST(base32_valid_24, { return is_valid_base32_char('X'); });
+EXO_TEST(base32_valid_25, { return is_valid_base32_char('Y'); });
+EXO_TEST(base32_valid_26, { return is_valid_base32_char('Z'); });
+EXO_TEST(base32_valid_27, { return is_valid_base32_char('2'); });
+EXO_TEST(base32_valid_28, { return is_valid_base32_char('3'); });
+EXO_TEST(base32_valid_29, { return is_valid_base32_char('4'); });
+EXO_TEST(base32_valid_30, { return is_valid_base32_char('5'); });
+EXO_TEST(base32_valid_31, { return is_valid_base32_char('6'); });
+EXO_TEST(base32_valid_32, { return is_valid_base32_char('7'); });
+
+EXO_TEST(base32_invalid_1,  { return !is_valid_base32_char('a'); });
+EXO_TEST(base32_invalid_2,  { return !is_valid_base32_char('b'); });
+EXO_TEST(base32_invalid_3,  { return !is_valid_base32_char('c'); });
+EXO_TEST(base32_invalid_4,  { return !is_valid_base32_char('d'); });
+EXO_TEST(base32_invalid_5,  { return !is_valid_base32_char('e'); });
+EXO_TEST(base32_invalid_6,  { return !is_valid_base32_char('f'); });
+EXO_TEST(base32_invalid_7,  { return !is_valid_base32_char('g'); });
+EXO_TEST(base32_invalid_8,  { return !is_valid_base32_char('h'); });
+EXO_TEST(base32_invalid_9,  { return !is_valid_base32_char('i'); });
+EXO_TEST(base32_invalid_10, { return !is_valid_base32_char('j'); });
+EXO_TEST(base32_invalid_11, { return !is_valid_base32_char('k'); });
+EXO_TEST(base32_invalid_12, { return !is_valid_base32_char('l'); });
+EXO_TEST(base32_invalid_13, { return !is_valid_base32_char('m'); });
+EXO_TEST(base32_invalid_14, { return !is_valid_base32_char('n'); });
+EXO_TEST(base32_invalid_15, { return !is_valid_base32_char('o'); });
+EXO_TEST(base32_invalid_16, { return !is_valid_base32_char('p'); });
+EXO_TEST(base32_invalid_17, { return !is_valid_base32_char('q'); });
+EXO_TEST(base32_invalid_18, { return !is_valid_base32_char('r'); });
+EXO_TEST(base32_invalid_19, { return !is_valid_base32_char('s'); });
+EXO_TEST(base32_invalid_20, { return !is_valid_base32_char('t'); });
+EXO_TEST(base32_invalid_21, { return !is_valid_base32_char('u'); });
+EXO_TEST(base32_invalid_22, { return !is_valid_base32_char('v'); });
+EXO_TEST(base32_invalid_23, { return !is_valid_base32_char('w'); });
+EXO_TEST(base32_invalid_24, { return !is_valid_base32_char('x'); });
+EXO_TEST(base32_invalid_25, { return !is_valid_base32_char('y'); });
+EXO_TEST(base32_invalid_26, { return !is_valid_base32_char('z'); });
+EXO_TEST(base32_invalid_27, { return !is_valid_base32_char('0'); });
+EXO_TEST(base32_invalid_28, { return !is_valid_base32_char('1'); });
+EXO_TEST(base32_invalid_29, { return !is_valid_base32_char('8'); });
+EXO_TEST(base32_invalid_30, { return !is_valid_base32_char('9'); });
+EXO_TEST(base32_invalid_31, { return !is_valid_base32_char('@'); });
+
+EXO_TEST(utf8_valid_1, { return is_valid_utf8("abcdefghijklmnopqrstuvwxyz"); });
+EXO_TEST(utf8_valid_2, { return is_valid_utf8("ABCDEFGHIJKLMNOPQRSTUVWXYZ"); });
+EXO_TEST(utf8_valid_3, { return is_valid_utf8("0123456789"); });
+EXO_TEST(utf8_valid_4, { return is_valid_utf8( (char[]) { 0x65, 0x00} ); });
+EXO_TEST(utf8_valid_5, { return !is_valid_utf8( (char[]) { 0xD8, 0x00} ); });
+
+EXO_TEST(utf8_valid_6, { return is_valid_utf8( (char[]) { 0x24, 0x00} ); });
+EXO_TEST(utf8_valid_7, { return !is_valid_utf8( (char[]) { 0xC2, 0x24, 0x00} ); });
+EXO_TEST(utf8_valid_8, { return is_valid_utf8( (char[]) { 0xC2, 0xA2, 0x00} ); });
+EXO_TEST(utf8_valid_9, { return is_valid_utf8( (char[]) { 0xE2, 0x82, 0xAC, 0x00} ); });
+EXO_TEST(utf8_valid_10, { return !is_valid_utf8( (char[]) { 0xC2, 0x32, 0x00} ); });
+EXO_TEST(utf8_valid_11, { return !is_valid_utf8( (char[]) { 0xE2, 0x82, 0x32, 0x00} ); });
+EXO_TEST(utf8_valid_12, { return !is_valid_utf8( (char[]) { 0xE2, 0x32, 0x82, 0x00} ); });
+
+

autotest/test_sid.tcc

@@ -0,0 +1,138 @@
+#include <uhub.h>
+
+static struct sid_pool* sid_pool = 0;
+
+struct dummy_user
+{
+	sid_t sid;
+};
+
+static struct dummy_user* last = 0;
+sid_t last_sid = 0;
+
+EXO_TEST(sid_create_pool, {
+	sid_pool = sid_pool_create(4);
+	return sid_pool != 0;
+});
+
+EXO_TEST(sid_check_0a, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, 0);
+	return user == 0;
+});
+
+EXO_TEST(sid_check_0b, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, 5);
+	return user == 0;
+});
+
+EXO_TEST(sid_alloc_1, {
+	struct dummy_user* user = hub_malloc_zero(sizeof(struct dummy_user));
+	user->sid = sid_alloc(sid_pool, (struct hub_user*) user);
+	last = user;
+	last_sid = user->sid;
+	return (user->sid > 0 && user->sid < 1048576);
+});
+
+EXO_TEST(sid_check_1a, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, last_sid);
+	return last == user;
+});
+
+EXO_TEST(sid_check_1b, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, last_sid+1);
+	return user == 0;
+});
+
+EXO_TEST(sid_alloc_2, {
+	struct dummy_user* user = hub_malloc_zero(sizeof(struct dummy_user));
+	user->sid = sid_alloc(sid_pool, (struct hub_user*) user);
+	last_sid = user->sid;
+	return (user->sid > 0 && user->sid < 1048576);
+});
+
+EXO_TEST(sid_check_2, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, last_sid);
+	return last != user;
+});
+
+EXO_TEST(sid_alloc_3, {
+	struct dummy_user* user = hub_malloc_zero(sizeof(struct dummy_user));
+	user->sid = sid_alloc(sid_pool, (struct hub_user*) user);
+	last_sid = user->sid;
+	return (user->sid > 0 && user->sid < 1048576);
+});
+
+EXO_TEST(sid_check_3, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, last_sid);
+	return last != user;
+});
+
+EXO_TEST(sid_alloc_4, {
+	struct dummy_user* user = hub_malloc_zero(sizeof(struct dummy_user));
+	user->sid = sid_alloc(sid_pool, (struct hub_user*) user);
+	last_sid = user->sid;
+	return (user->sid > 0 && user->sid < 1048576);
+});
+
+EXO_TEST(sid_check_4, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, last_sid);
+	return last != user;
+});
+
+EXO_TEST(sid_alloc_5, {
+	struct dummy_user user;
+	sid_t sid;
+	sid = sid_alloc(sid_pool, (struct hub_user*) &user);
+	return sid == 0;
+});
+
+EXO_TEST(sid_check_6, {
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, 0);
+	return user == 0;
+});
+
+
+EXO_TEST(sid_list_all_1, {
+	sid_t s;
+	size_t n = 0;
+	int ok = 1;
+	for (s = last->sid; s <= last_sid; s++)
+	{
+		struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, s);
+		if (s != (user ? user->sid : -1))
+		{
+			ok = 0;
+			break;
+		}
+		n++;
+	}
+	return ok && n == 4;
+});
+
+#define FREE_SID(N) \
+	struct dummy_user* user = (struct dummy_user*) sid_lookup(sid_pool, N); \
+	sid_free(sid_pool, N); \
+	hub_free(user); \
+	return sid_lookup(sid_pool, N) == NULL;
+
+EXO_TEST(sid_remove_1, {
+	FREE_SID(2);
+});
+
+EXO_TEST(sid_remove_2, {
+	FREE_SID(1);
+});
+
+EXO_TEST(sid_remove_3, {
+	FREE_SID(4);
+});
+
+EXO_TEST(sid_remove_4, {
+	FREE_SID(3);
+});
+
+EXO_TEST(sid_destroy_pool, {
+	sid_pool_destroy(sid_pool);
+	sid_pool = 0;
+	return sid_pool == 0;
+});

autotest/test_tiger.tcc

@@ -0,0 +1,69 @@
+#include <uhub.h>
+
+#define DEBUG_HASH
+
+static char* byte_to_hex(char* dest, uint8_t c)
+{
+	static const char* hexchars = "0123456789abcdef";
+	*dest = hexchars[c / 16]; dest++;
+	*dest = hexchars[c % 16]; dest++;
+	return dest;
+}
+
+
+static int test_tiger_hex(char* input, char* expected) {
+	char buf[TIGERSIZE*2+1];
+	uint64_t tiger_res[3];
+	int i = 0;
+#ifdef DEBUG_HASH
+	int res = 0;
+#endif
+	char* ptr = buf;
+	buf[TIGERSIZE*2] = 0;
+	
+	tiger((uint64_t*) input, strlen(input), (uint64_t*) tiger_res);
+	for (i = 0; i < TIGERSIZE; i++)
+		ptr = byte_to_hex(ptr, (char) (((uint8_t*) tiger_res)[i]) );
+
+#ifdef DEBUG_HASH
+	res = strcasecmp(buf, expected) == 0 ? 1 : 0;
+
+	if (!res)
+	{
+		printf("Expected: '%s', Got: '%s'\n", expected, buf);
+	}
+	return res;
+#else
+	return strcasecmp(buf, expected) == 0;
+#endif
+}
+
+
+EXO_TEST(hash_tiger_1, {
+	return test_tiger_hex("", "3293AC630C13F0245F92BBB1766E16167A4E58492DDE73F3");
+});
+
+EXO_TEST(hash_tiger_2, {
+	return test_tiger_hex("a", "77BEFBEF2E7EF8AB2EC8F93BF587A7FC613E247F5F247809");
+});
+
+EXO_TEST(hash_tiger_3, {
+	return test_tiger_hex("abc", "2AAB1484E8C158F2BFB8C5FF41B57A525129131C957B5F93");
+});
+
+EXO_TEST(hash_tiger_4, {
+	return test_tiger_hex("message digest", "D981F8CB78201A950DCF3048751E441C517FCA1AA55A29F6");
+});
+
+EXO_TEST(hash_tiger_5, {
+	return test_tiger_hex("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", "0F7BF9A19B9C58F2B7610DF7E84F0AC3A71C631E7B53F78E");
+});
+
+EXO_TEST(hash_tiger_6, {
+	return test_tiger_hex("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", "8DCEA680A17583EE502BA38A3C368651890FFBCCDC49A8CC");
+});
+
+EXO_TEST(hash_tiger_7, {
+	return test_tiger_hex("12345678901234567890123456789012345678901234567890123456789012345678901234567890", "1C14795529FD9F207A958F84C52F11E887FA0CABDFD91BFD");
+});
+

autotest/test_timer.tcc

@@ -0,0 +1,119 @@
+#include <uhub.h>
+
+#define MAX_EVENTS 15
+static struct timeout_queue* g_queue;
+static time_t g_now;
+static size_t g_max;
+static struct timeout_evt g_events[MAX_EVENTS];
+
+static size_t g_triggered;
+
+static void timeout_cb(struct timeout_evt* t)
+{
+	g_triggered++;
+}
+
+/*
+typedef void (*timeout_evt_cb)(struct timeout_evt*);
+
+struct timeout_evt
+{
+	time_t timestamp;
+	timeout_evt_cb callback;
+	void* ptr;
+	struct timeout_evt* prev;
+	struct timeout_evt* next;
+};
+
+void timeout_evt_initialize(struct timeout_evt*, timeout_evt_cb, void* ptr);
+void timeout_evt_reset(struct timeout_evt*);
+int  timeout_evt_is_scheduled(struct timeout_evt*);
+
+
+struct timeout_queue
+{
+	time_t last;
+	size_t max;
+	struct timeout_evt** events;
+};
+
+void timeout_queue_initialize(struct timeout_queue*, time_t now, size_t max);
+void timeout_queue_shutdown(struct timeout_queue*);
+size_t timeout_queue_process(struct timeout_queue*, time_t now);
+void timeout_queue_insert(struct timeout_queue*, struct timeout_evt*, size_t seconds);
+void timeout_queue_remove(struct timeout_queue*, struct timeout_evt*);
+void timeout_queue_reschedule(struct timeout_queue*, struct timeout_evt*, size_t seconds);
+
+size_t timeout_queue_get_next_timeout(struct timeout_queue*, time_t now);
+*/
+
+
+EXO_TEST(timer_setup,{
+	size_t n;
+	g_queue = hub_malloc_zero(sizeof(struct timeout_queue));
+	g_now = 0;
+	g_max = 5;
+	g_triggered = 0;
+	timeout_queue_initialize(g_queue, g_now, g_max);
+
+	memset(g_events, 0,  sizeof(g_events));
+	for (n = 0; n < MAX_EVENTS; n++)
+	{
+		timeout_evt_initialize(&g_events[n], timeout_cb, &g_events[n]);
+	}
+
+	return g_queue != NULL;
+});
+
+
+EXO_TEST(timer_check_timeout_0,{
+	return timeout_queue_get_next_timeout(g_queue, g_now) == g_max;
+});
+
+
+EXO_TEST(timer_add_event_1,{
+	timeout_queue_insert(g_queue, &g_events[0], 2);
+	return g_events[0].prev != NULL;
+});
+
+EXO_TEST(timer_check_timeout_1,{
+	return timeout_queue_get_next_timeout(g_queue, g_now) == 2;
+});
+
+EXO_TEST(timer_remove_event_1,{
+	timeout_queue_remove(g_queue, &g_events[0]);
+	return g_events[0].prev == NULL;
+});
+
+EXO_TEST(timer_check_timeout_2,{
+	return timeout_queue_get_next_timeout(g_queue, g_now) == g_max;
+});
+
+/* test re-removing an event - should not crash! */
+EXO_TEST(timer_remove_event_1_no_crash,{
+	timeout_queue_remove(g_queue, &g_events[0]);
+	return g_events[0].prev == NULL;
+});
+
+EXO_TEST(timer_add_5_events_1,{
+	timeout_queue_insert(g_queue, &g_events[0], 0);
+	timeout_queue_insert(g_queue, &g_events[1], 1);
+	timeout_queue_insert(g_queue, &g_events[2], 2);
+	timeout_queue_insert(g_queue, &g_events[3], 3);
+	timeout_queue_insert(g_queue, &g_events[4], 4);
+
+	return (g_events[0].prev != NULL &&
+			g_events[1].prev != NULL &&
+			g_events[2].prev != NULL &&
+			g_events[3].prev != NULL &&
+			g_events[4].prev != NULL);
+});
+
+EXO_TEST(timer_check_5_events_1,{
+	return timeout_queue_get_next_timeout(g_queue, g_now) == 1;
+});
+
+EXO_TEST(timer_process_5_events_1,{
+	g_now = 4;
+	return timeout_queue_process(g_queue, g_now) == g_triggered;
+});

autotest/test_usermanager.tcc

@@ -0,0 +1,109 @@
+#include <uhub.h>
+
+#define MAX_USERS 64
+
+static struct hub_info um_hub;
+static struct hub_user um_user[MAX_USERS];
+// static struct net_connection um_cons[MAX_USERS];
+
+EXO_TEST(um_test_setup, {
+	int i = 0;
+	memset(&um_hub,  0, sizeof(um_hub));
+	
+	for (i = 0; i < MAX_USERS; i++)
+	{
+/*		memset(&um_cons[i], 0, sizeof(struct net_connection));
+		um_cons[i].sd = -1;
+
+		memset(&um_user[i], 0, sizeof(struct hub_user));
+		um_user[i].id.sid = i+1;
+		um_user[i].connection = &um_cons[i];*/
+	}
+	return 1;
+});
+
+EXO_TEST(um_init_1, {
+	return uman_init(0) != 0;
+});
+
+EXO_TEST(um_init_2, {
+	return uman_init(&um_hub) == 0;
+});
+
+EXO_TEST(um_shutdown_1, {
+	return uman_shutdown(0) == -1;
+});
+
+EXO_TEST(um_shutdown_2, {
+	return uman_shutdown(&um_hub) == 0;
+});
+
+EXO_TEST(um_shutdown_3, {
+	return uman_shutdown(&um_hub) == -1;
+});
+
+EXO_TEST(um_init_3, {
+	return uman_init(&um_hub) == 0;
+});
+
+EXO_TEST(um_add_1, {
+	return uman_add(&um_hub, &um_user[0]) == 0;
+});
+
+EXO_TEST(um_size_1, {
+	return hub_get_user_count(&um_hub) == 1;
+});
+
+
+EXO_TEST(um_remove_1, {
+	return uman_remove(&um_hub, &um_user[0]) == 0;
+});
+
+EXO_TEST(um_size_2, {
+	return hub_get_user_count(&um_hub) == 0;
+});
+
+
+EXO_TEST(um_add_2, {
+	int i;
+	for (i = 0; i < MAX_USERS; i++)
+	{
+		if (uman_add(&um_hub, &um_user[i]) != 0)
+			return 0;
+	}
+	return 1;
+});
+
+EXO_TEST(um_size_3, {
+	return hub_get_user_count(&um_hub) == MAX_USERS;
+});
+
+EXO_TEST(um_add_3, {
+	return uman_add(&um_hub, &um_user[5]) != 0;
+});
+
+EXO_TEST(um_remove_2, {
+	int i;
+	for (i = 0; i < MAX_USERS; i++)
+	{
+		if (uman_remove(&um_hub, &um_user[i]) != 0)
+			return 0;
+	}
+	return 1;
+});
+
+
+
+
+
+
+
+
+
+
+
+
+/* Last test */
+EXO_TEST(um_shutdown_4, {
+	return uman_shutdown(&um_hub) == 0;
+});

debian/changelog

@@ -0,0 +1,31 @@
+uhub (0.3.3-1) unstable; urgency=low
+
+  * Updated upstream version.
+
+  -- Jan Vidar Krey <janvidar@extatic.org>  Tue 24 Aug 2010 18:00:00 +0200
+
+uhub (0.3.2-1) unstable; urgency=low
+
+  * Updated upstream version.
+
+ -- Jan Vidar Krey <janvidar@extatic.org>  Mon 30 May 2010 18:00:00 +0200
+
+uhub (0.3.1-1) unstable; urgency=low
+
+  * Updated version number.
+
+ -- Jan Vidar Krey <janvidar@extatic.org>  Mon 04 Apr 2010 16:44:21 +0200
+
+uhub (0.3.0-2) unstable; urgency=low
+
+  * Fixed init.d scripts.
+  * Fixed lintian warnings.
+
+ -- Jan Vidar Krey <janvidar@extatic.org>  Tue, 26 Jan 2010 19:02:02 +0100
+
+uhub (0.3.0-1) unstable; urgency=low
+
+  * Initial Release.
+
+ -- Jan Vidar Krey <janvidar@extatic.org>  Tue, 26 Jan 2010 18:59:02 +0100
+

debian/compat

@@ -0,0 +1 @@
+7

debian/control

@@ -0,0 +1,24 @@
+Source: uhub
+Section: net
+Priority: optional
+Maintainer: Jan Vidar Krey <janvidar@extatic.org>
+Build-Depends: debhelper (>= 7.0.0)
+Standards-Version: 3.8.3.0
+
+Package: uhub
+Architecture: any
+Depends: ${shlibs:Depends}
+Description: High performance ADC p2p hub
+ uhub is a high performance peer-to-peer hub for the ADC network.
+ Its low memory footprint allows it to handle several thousand users on
+ high-end servers, or a small private hub on embedded hardware.
+ .
+ Key features:
+  - High performance and low memory usage
+  - IPv4 and IPv6 support
+  - Experimental SSL support (optional)
+  - Advanced access control support
+  - Easy configuration
+ .
+Homepage: http://www.uhub.org/
+

debian/copyright

@@ -0,0 +1,19 @@
+uhub - High performance ADC p2p hub.
+Copyright (C) 2010 Jan Vidar Krey <janvidar@extatic.org>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+On Debian GNU/Linux systems, the complete text of the GNU General Public
+License can be found in `/usr/share/common-licenses/GPL'.
+

debian/rules

@@ -0,0 +1,45 @@
+#!/usr/bin/make -f
+
+# export DH_VERBOSE=1
+
+makeopts := DESTDIR=$(shell pwd)/debian/uhub/ \
+	UHUB_PREFIX=$(shell pwd)/debian/uhub/usr \
+	RELEASE=YES SILENT=YES
+
+build: build-stamp
+build-stamp:
+	dh_testdir
+	make $(makeopts)
+	touch build-stamp
+
+clean:
+	dh_testdir
+	dh_testroot
+	rm -f build-stamp
+	make clean
+	dh_clean
+
+binary-indep: build
+
+binary-arch: build
+	dh_testdir
+	dh_testroot
+	dh_clean -k
+	dh_installdirs
+	$(MAKE) install $(makeopts)
+	dh_installdocs
+	dh_installinit
+	dh_installlogrotate
+	dh_installman -A
+	dh_installchangelogs	ChangeLog
+	dh_strip
+	dh_compress
+	dh_installdeb
+	dh_shlibdeps
+	dh_gencontrol
+	dh_md5sums
+	dh_builddeb
+
+binary: binary-indep binary-arch
+.PHONY: build clean binary-indep binary-arch binary
+

debian/uhub.default

@@ -0,0 +1,4 @@
+# uhub - high performance adc hub.
+
+UHUB_ENABLE=0
+

debian/uhub.dirs

@@ -0,0 +1,6 @@
+etc/default
+etc/init.d
+etc/logrotate.d
+etc/uhub
+usr/bin
+var/log/uhub

debian/uhub.docs

@@ -0,0 +1,5 @@
+AUTHORS
+README
+BUGS
+TODO
+doc/getstarted.txt

debian/uhub.init

@@ -0,0 +1,92 @@
+#!/bin/sh
+### BEGIN INIT INFO
+# Provides:          uhub
+# Required-Start:    $remote_fs $network
+# Required-Stop:     $remote_fs $network
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: uhub - High performance ADC p2p hub.
+### END INIT INFO
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+
+NAME=uhub
+DESC="ADC hub"
+DAEMON=/usr/bin/uhub
+PIDFILE=/var/run/uhub/uhub.pid
+LOGFILE=/var/log/uhub/uhub.log
+SCRIPTNAME=/etc/init.d/uhub
+
+DEFAULTFILE=/etc/default/uhub
+[ -r $DEFAULTFILE ] && . $DEFAULTFILE
+
+DAEMON_ENABLE="${UHUB_ENABLE}"
+DAEMON_OPTS="-l ${LOGFILE} -f -p ${PIDFILE}"
+
+test -x $DAEMON || exit 0
+
+. /lib/lsb/init-functions
+
+ulimit -n 65536
+mkdir -p /var/run/uhub/
+
+set -e
+
+case "$1" in
+	start)
+		if [ "$DAEMON_ENABLE" != "true" ]; then
+			log_daemon_msg "Disabled $DESC" $NAME
+			log_end_msg 0
+			exit 0
+		fi
+
+		log_daemon_msg "Starting $DESC" $NAME
+		if ! start-stop-daemon --start --quiet --oknodo \
+			--pidfile $PIDFILE --exec $DAEMON -- $DAEMON_OPTS
+		then
+			log_end_msg 1
+		else
+			log_end_msg 0
+		fi
+		;;
+
+	stop)
+		log_daemon_msg "Stopping $DESC" $NAME
+		if start-stop-daemon --quiet --stop --oknodo --retry 30 --oknodo \
+			--pidfile $PIDFILE --exec $DAEMON
+		then
+			rm -f $PIDFILE
+			log_end_msg 0
+		else
+			log_end_msg 1
+		fi
+		;;
+
+	reload)
+		log_daemon_msg "Reloading $DESC configuration" $NAME
+		if start-stop-daemon --stop --signal 2 --oknodo --retry 30 --oknodo \
+			--quiet --pidfile $PIDFILE --exec $DAEMON
+		then
+			if start-stop-daemon --start --quiet  \
+				--pidfile $PIDFILE --exec $DAEMON -- $DAEMON_OPTS ; then
+				log_end_msg 0
+			else
+				log_end_msg 1
+			fi
+		else
+			log_end_msg 1
+		fi
+		;;
+
+	restart|force-reload)
+		$0 stop
+		$0 start
+		;;
+
+	*)
+		echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
+		exit 1
+		;;
+esac
+
+exit 0

debian/uhub.logrotate

@@ -0,0 +1,9 @@
+/var/log/uhub/*.log
+{
+        compress
+        size 10M
+        rotate 10
+        missingok
+        notifempty
+}
+

debian/uhub.manpages

@@ -0,0 +1 @@
+doc/uhub.1

debian/uhub.postinst

@@ -0,0 +1,27 @@
+#!/bin/sh
+set -e
+
+case "$1" in
+    configure)
+	chmod 0750 /var/log/uhub
+
+	if [ -x /etc/init.d/uhub ]; then
+        	update-rc.d uhub defaults >/dev/null
+
+	        if [ -x /usr/sbin/invoke-rc.d ]; then
+	                invoke-rc.d uhub restart
+	        else
+        	        /etc/init.d/uhub restart
+	        fi
+	fi
+	;;
+
+    abort-upgrade|abort-remove|abort-deconfigure)
+        ;;
+
+    *)
+        echo "postinst: error: unknown argument: $1" >&2
+        exit 1
+        ;;
+esac
+

debian/uhub.postrm

@@ -0,0 +1,6 @@
+#!/bin/sh -e
+
+if [ "$1" = purge ]; then
+        update-rc.d uhub remove >/dev/null
+fi
+

debian/uhub.prerm

@@ -0,0 +1,10 @@
+#!/bin/sh -e
+
+if [ "$1" = remove ]; then
+        if command -v invoke-rc.d >/dev/null 2>&1; then
+                invoke-rc.d uhub stop || true
+        else
+                /etc/init.d/uhub stop
+        fi
+fi
+

doc/Doxyfile

@@ -0,0 +1,256 @@
+# Doxyfile 1.5.5-KDevelop
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+DOXYFILE_ENCODING      = UTF-8
+PROJECT_NAME           = uHub
+PROJECT_NUMBER         = 0.2.0-alpha
+OUTPUT_DIRECTORY       = 
+CREATE_SUBDIRS         = NO
+OUTPUT_LANGUAGE        = English
+BRIEF_MEMBER_DESC      = YES
+REPEAT_BRIEF           = YES
+ABBREVIATE_BRIEF       = "The $name class" \
+                         "The $name widget" \
+                         "The $name file" \
+                         is \
+                         provides \
+                         specifies \
+                         contains \
+                         represents \
+                         a \
+                         an \
+                         the
+ALWAYS_DETAILED_SEC    = YES
+INLINE_INHERITED_MEMB  = YES
+FULL_PATH_NAMES        = NO
+STRIP_FROM_PATH        = 
+STRIP_FROM_INC_PATH    = 
+SHORT_NAMES            = YES
+JAVADOC_AUTOBRIEF      = NO
+QT_AUTOBRIEF           = NO
+MULTILINE_CPP_IS_BRIEF = NO
+DETAILS_AT_TOP         = YES
+INHERIT_DOCS           = YES
+SEPARATE_MEMBER_PAGES  = NO
+TAB_SIZE               = 8
+ALIASES                = 
+OPTIMIZE_OUTPUT_FOR_C  = YES
+OPTIMIZE_OUTPUT_JAVA   = NO
+OPTIMIZE_FOR_FORTRAN   = NO
+OPTIMIZE_OUTPUT_VHDL   = NO
+BUILTIN_STL_SUPPORT    = NO
+CPP_CLI_SUPPORT        = NO
+SIP_SUPPORT            = NO
+IDL_PROPERTY_SUPPORT   = YES
+DISTRIBUTE_GROUP_DOC   = NO
+SUBGROUPING            = YES
+TYPEDEF_HIDES_STRUCT   = NO
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+EXTRACT_ALL            = YES
+EXTRACT_PRIVATE        = YES
+EXTRACT_STATIC         = YES
+EXTRACT_LOCAL_CLASSES  = YES
+EXTRACT_LOCAL_METHODS  = YES
+EXTRACT_ANON_NSPACES   = NO
+HIDE_UNDOC_MEMBERS     = NO
+HIDE_UNDOC_CLASSES     = NO
+HIDE_FRIEND_COMPOUNDS  = NO
+HIDE_IN_BODY_DOCS      = NO
+INTERNAL_DOCS          = NO
+CASE_SENSE_NAMES       = YES
+HIDE_SCOPE_NAMES       = NO
+SHOW_INCLUDE_FILES     = YES
+INLINE_INFO            = YES
+SORT_MEMBER_DOCS       = YES
+SORT_BRIEF_DOCS        = NO
+SORT_GROUP_NAMES       = NO
+SORT_BY_SCOPE_NAME     = YES
+GENERATE_TODOLIST      = YES
+GENERATE_TESTLIST      = YES
+GENERATE_BUGLIST       = YES
+GENERATE_DEPRECATEDLIST= YES
+ENABLED_SECTIONS       = 
+MAX_INITIALIZER_LINES  = 30
+SHOW_USED_FILES        = YES
+SHOW_DIRECTORIES       = NO
+SHOW_FILES             = YES
+SHOW_NAMESPACES        = YES
+FILE_VERSION_FILTER    = 
+#---------------------------------------------------------------------------
+# configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+QUIET                  = YES
+WARNINGS               = YES
+WARN_IF_UNDOCUMENTED   = YES
+WARN_IF_DOC_ERROR      = YES
+WARN_NO_PARAMDOC       = NO
+WARN_FORMAT            = "$file:$line: $text"
+WARN_LOGFILE           = 
+#---------------------------------------------------------------------------
+# configuration options related to the input files
+#---------------------------------------------------------------------------
+INPUT                  = .
+INPUT_ENCODING         = UTF-8
+FILE_PATTERNS          = *.c \
+                         *.h
+RECURSIVE              = YES
+EXCLUDE                = 
+EXCLUDE_SYMLINKS       = NO
+EXCLUDE_PATTERNS       = autotest/*
+EXCLUDE_SYMBOLS        = 
+EXAMPLE_PATH           = 
+EXAMPLE_PATTERNS       = *
+EXAMPLE_RECURSIVE      = NO
+IMAGE_PATH             = 
+INPUT_FILTER           = 
+FILTER_PATTERNS        = 
+FILTER_SOURCE_FILES    = NO
+#---------------------------------------------------------------------------
+# configuration options related to source browsing
+#---------------------------------------------------------------------------
+SOURCE_BROWSER         = YES
+INLINE_SOURCES         = YES
+STRIP_CODE_COMMENTS    = YES
+REFERENCED_BY_RELATION = YES
+REFERENCES_RELATION    = YES
+REFERENCES_LINK_SOURCE = YES
+USE_HTAGS              = NO
+VERBATIM_HEADERS       = YES
+#---------------------------------------------------------------------------
+# configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+ALPHABETICAL_INDEX     = YES
+COLS_IN_ALPHA_INDEX    = 5
+IGNORE_PREFIX          = 
+#---------------------------------------------------------------------------
+# configuration options related to the HTML output
+#---------------------------------------------------------------------------
+GENERATE_HTML          = YES
+HTML_OUTPUT            = html
+HTML_FILE_EXTENSION    = .html
+HTML_HEADER            = 
+HTML_FOOTER            = 
+HTML_STYLESHEET        = 
+HTML_ALIGN_MEMBERS     = YES
+GENERATE_HTMLHELP      = YES
+GENERATE_DOCSET        = NO
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+HTML_DYNAMIC_SECTIONS  = NO
+CHM_FILE               = 
+HHC_LOCATION           = 
+GENERATE_CHI           = NO
+BINARY_TOC             = NO
+TOC_EXPAND             = YES
+DISABLE_INDEX          = NO
+ENUM_VALUES_PER_LINE   = 4
+GENERATE_TREEVIEW      = NONE
+TREEVIEW_WIDTH         = 250
+FORMULA_FONTSIZE       = 10
+#---------------------------------------------------------------------------
+# configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+GENERATE_LATEX         = NO
+LATEX_OUTPUT           = latex
+LATEX_CMD_NAME         = latex
+MAKEINDEX_CMD_NAME     = makeindex
+COMPACT_LATEX          = NO
+PAPER_TYPE             = a4wide
+EXTRA_PACKAGES         = 
+LATEX_HEADER           = 
+PDF_HYPERLINKS         = YES
+USE_PDFLATEX           = YES
+LATEX_BATCHMODE        = NO
+LATEX_HIDE_INDICES     = NO
+#---------------------------------------------------------------------------
+# configuration options related to the RTF output
+#---------------------------------------------------------------------------
+GENERATE_RTF           = NO
+RTF_OUTPUT             = rtf
+COMPACT_RTF            = NO
+RTF_HYPERLINKS         = NO
+RTF_STYLESHEET_FILE    = 
+RTF_EXTENSIONS_FILE    = 
+#---------------------------------------------------------------------------
+# configuration options related to the man page output
+#---------------------------------------------------------------------------
+GENERATE_MAN           = NO
+MAN_OUTPUT             = man
+MAN_EXTENSION          = .3
+MAN_LINKS              = NO
+#---------------------------------------------------------------------------
+# configuration options related to the XML output
+#---------------------------------------------------------------------------
+GENERATE_XML           = NO
+XML_OUTPUT             = xml
+XML_SCHEMA             = 
+XML_DTD                = 
+XML_PROGRAMLISTING     = YES
+#---------------------------------------------------------------------------
+# configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+GENERATE_AUTOGEN_DEF   = NO
+#---------------------------------------------------------------------------
+# configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+GENERATE_PERLMOD       = NO
+PERLMOD_LATEX          = NO
+PERLMOD_PRETTY         = YES
+PERLMOD_MAKEVAR_PREFIX = 
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor   
+#---------------------------------------------------------------------------
+ENABLE_PREPROCESSING   = YES
+MACRO_EXPANSION        = NO
+EXPAND_ONLY_PREDEF     = NO
+SEARCH_INCLUDES        = YES
+INCLUDE_PATH           = 
+INCLUDE_FILE_PATTERNS  = 
+PREDEFINED             = 
+EXPAND_AS_DEFINED      = 
+SKIP_FUNCTION_MACROS   = YES
+#---------------------------------------------------------------------------
+# Configuration::additions related to external references   
+#---------------------------------------------------------------------------
+TAGFILES               = 
+GENERATE_TAGFILE       = uhub.tag
+ALLEXTERNALS           = NO
+EXTERNAL_GROUPS        = YES
+PERL_PATH              = /usr/bin/perl
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool   
+#---------------------------------------------------------------------------
+CLASS_DIAGRAMS         = YES
+MSCGEN_PATH            = 
+HIDE_UNDOC_RELATIONS   = YES
+HAVE_DOT               = YES
+DOT_FONTNAME           = FreeSans
+DOT_FONTPATH           = 
+CLASS_GRAPH            = YES
+COLLABORATION_GRAPH    = YES
+GROUP_GRAPHS           = YES
+UML_LOOK               = NO
+TEMPLATE_RELATIONS     = NO
+INCLUDE_GRAPH          = YES
+INCLUDED_BY_GRAPH      = YES
+CALL_GRAPH             = NO
+CALLER_GRAPH           = NO
+GRAPHICAL_HIERARCHY    = NO
+DIRECTORY_GRAPH        = YES
+DOT_IMAGE_FORMAT       = png
+DOT_PATH               = 
+DOTFILE_DIRS           = 
+DOT_GRAPH_MAX_NODES    = 50
+MAX_DOT_GRAPH_DEPTH    = 1000
+DOT_TRANSPARENT        = YES
+DOT_MULTI_TARGETS      = NO
+GENERATE_LEGEND        = YES
+DOT_CLEANUP            = YES
+#---------------------------------------------------------------------------
+# Configuration::additions related to the search engine   
+#---------------------------------------------------------------------------
+SEARCHENGINE           = NO

doc/architecture.txt

@@ -0,0 +1,91 @@
+= Architecture of uHub =
+
+uHub is single threaded and handles network and timer events using the 
+libevent library.
+For each state there is a read event (and sometimes a write event) and timeout
+event in case an expected read (or write) event does not occur.
+
+
+== Protocol overview ==
+uHub use "speak" the ADC protocol, which works in short as follows:
+(C = client, S = server aka uHub).
+
+C: HSUP ADBASE
+Client connects to hub and supplies a list of supported features to the hub.
+
+S: ISUP ADBASE { }
+Server responds with a list of supported features.
+
+S: ISID xxxx
+Server assigns a session-ID to the client (4 bytes, BASE32 encoded).
+
+C: BINF xxxx (...)
+Client sends information about itself, such as nick name, etc.
+The hub will relay this information to all users, including the client.
+
+S: BINF xxx1 NInick1 (...)
+S: BINF xxx2 NInick2
+S: (...)
+S: BINF xxxx (client's own nick)
+Client gets list of other clients, which ends with the client's own user info.
+At this point the client is successfully logged into the hub.
+
+
+== The hub architecture ==
+
+Accepting new users
+
+
+
+
+
+    ---------------------              -----------------
+    | Accept connection | <----------  | libevent loop |
+    ---------------------              -----------------
+              |
+              V
+    ---------------------           ------------
+    | Setup login timer | --+---->  | Timeout? | <----+
+    ---------------------   |       ------------      |
+              |             |             |           |
+              V             |             V           |
+    ---------------------   |      ---------------    |
+    |   Receive 'HSUP'  | --+----> | DISCONNECT! |    |
+    ---------------------          ---------------    |
+              |                           ^           |
+              V                           |           |
+    ---------------------                 |           |
+    | Send 'ISUP', and  |                 |           |
+    | assign Session ID |                 |           |
+    ---------------------                 |           |
+              |                           |           |
+              V                           |           |
+    ---------------------                 |           |
+    |   Receive 'BINF'  |-----------------+------------
+ +--| Validate message  |                 ^
+ |  ---------------------                 |
+ |            |                           |
+ |            V                           |
+ |  ---------------------         ---------------------
+ |  |   Send password   | ------> | Reveive and check |
+ |  | request, if needed|         | password.         |
+ |  ---------------------         ---------------------
+ |                                         |
+ |                                         |
+ |  ------------------------               |
+ +->| Send welcome message |<--------------+
+    ------------------------
+              |
+              V
+    ------------------------
+    | Send user list to    |
+    | newly accepted user. |
+    ------------------------
+              |
+              V
+    ------------------------
+    |  User is logged in.  |
+    |   Announce to all.   |
+    ------------------------
+
+

doc/compile.txt

@@ -0,0 +1,21 @@
+How to compile:
+---------------
+
+See the official compiling howto: http://www.extatic.org/uhub/compile.html
+
+Prerequisites
+
+Before you try to compile µHub, please make sure the following prerequisites are met.
+  * GNU make
+  * gcc > 3.0 (or MinGW on Windows)
+  * Perl 5
+
+Linux, Mac OSX, FreeBSD, NetBSD and OpenBSD
+-------------------------------------------
+Simply, run:
+  % make 
+
+If you have an old gcc compiler, try disabling pre-compiled headers like this:
+gmake USE_PCH=NO
+
+

doc/extensions.txt

@@ -0,0 +1,76 @@
+ADC protocol extensions supported:
+
+STATUS: **** Not yet implemented.
+
+the 'AUT0' extension (network connection auto detection extension).
+Rationale: Detect if client is capable of initiating active connections.
+
+After logging in:
+
+Client -> 'HCHK 12345 ABCD'.
+
+Server sends a UDP packet containing token to the client's IP address at the given port as shown in the INF message.
+
+Server -> 'ICHK ABCD'
+
+The server should send it from a UDP socket bound to the same port as the TCP server, which means the server will
+have to listen to both TCP and UDP.
+
+If client receives the packet, it knows it can receive UDP connections, and will advertise it in the INF message as
+a supported feature.
+
+If the client does not receive any UDP packets within a few seconds, it MAY try to reconfigure the router using 
+UPnP/ZeroConf, and issue a HCHK command to the server again.
+
+If the client still doesn't receive any UDP packets, hole punching can be tried.
+The server will send a UDP packet to the hub (using the port of the TCP server), and reissue the HCHK command.
+The UDP packet SHOULD be echoed by the hub.
+This UDP packet should contain simply 'HECH {cid} {token}' (Hub echo).
+
+The hub should send a packet containing the token back:
+'IECH {token} {host:port}', aswell as the same message via TCP.
+
+If the client receives the message via UDP, it should now be able to determine the type of NAT.
+If the client receives the message via TCP only it knows it has a firewall blocking icomming communication.
+If the client does not receive the message, it should assume a firewall is blocking all UDP communication,
+and resume in passive mode.
+
+Requirements:
+'AUT0' in the extensions message (SUP) for client and hub.
+Server will also listen to UDP messages on the same port as the TCP port.
+
+The server MUST now respond to the 'HCHK' command via TCP
+The server MUST now respond to the 'HECH' command via UDP.
+
+The client will always initiate communication.
+
+-------------------------------------------------------------------------------
+
+Syntax: HCHK {port} {token}
+- port is a 16-bit port number where the client is listening for packets.
+- token is 4 bytes base32 encoded data specified by the client.
+
+Example:
+Client: 'HCHK 1511 BACD' (tcp)
+Server: 'ICHK BACD' (udp)
+
+-------------------------------------------------------------------------------
+
+Syntax: HECH {cid} {token}
+- cid is the client ID.
+- token is 4 bytes base32 encoded data specified by the client.
+
+Example:
+Client: 'HECH 3NGFVJUDBRHX2CYRJGQ5HACRDM5CTNLGZ36M64I BACD' (udp)
+Server: 'IECH BACD 192.168.0.1:1512' (udp)
+Server: 'IECH BACD 192.168.0.1:1512' (tcp)
+
+Security considerations:
+The hub must verify that IP address where the HECH command originated from
+matches the IP address where the user with the given CID is connected from.
+If the CID and IP does not match, or the CID is not used the hub MUST ignore
+the request.
+
+
+
+

doc/getstarted.txt

@@ -0,0 +1,57 @@
+Getting started guide
+---------------------
+
+(This document is maintained at http://www.extatic.org/uhub/getstarted.html )
+
+Unpack your binaries 
+
+Example:
+  % tar xzf uhub-0.2.6-linux-i386.tar.gz
+  % cd uhub-0.2.6
+
+Copy the binary to /usr/local/bin
+
+  % sudo cp uhub /usr/local/bin
+
+Create configuration files.
+If no configuration files are created, uhub will use the default parameters, so you can skip this step if you are in a hurry to see it run.
+
+As root, or use sudo.
+  % mkdir /etc/uhub
+  % cp doc/uhub.conf /etc/uhub
+  % cp doc/users.conf /etc/uhub
+  % echo "welcome to uhub" > /etc/uhub/motd.txt
+
+Start the hub in the foreground for the first time. Shut it down, by pressing CTRL+C.
+
+  % uhub
+  Thu, 05 Feb 2009 00:48:04 +0000 INFO: Starting server, listening on :::1511...
+
+Connect to the hub using an ADC client, use the address adc://localhost:1511, or replace localhost with the correct hostname or IP address.
+NOTE: It is important to use the "adc://" prefix, and the port number when using DC++ and other ADC clients.
+
+If you modify the configuration files in /etc/uhub you will have to notify uhub by sending a HUP signal.
+
+  % kill -HUP <pid of uhub>
+Or, for the lazy people
+  % killall -HUP uhub
+
+In order to run uhub as a daemon, start it with the -f switch which will make it fork into the background.
+In addition, use the -l to specify a log file instead of stdout. One can also specify a specific user and/or group, 
+if one wishes to run uhub as a specific user using the -u and -g switches.
+
+Example:
+  % uhub -f -l mylog.txt -u nobody -g nogroup
+
+
+If you are planning to more than 1024 users on hub, you must increase the max number of file descriptors allowed.
+This limit needs to be higher than the configured max_users in uhub.conf.
+
+In linux can add the following lines to /etc/security/limits.conf (allows for ~4000 users)
+      *     soft nofile 4096
+      *     hard nofile 4096
+
+Or, you can use (as root):
+  % ulimit -n 4096
+                     
+Your mileage may vary -- Good luck!

doc/init.d.RedHat/etc/init.d/uhub

@@ -0,0 +1,101 @@
+#!/bin/sh
+#
+# chkconfig: - 91 35
+# description: Starts and stops the Uhub ( http://www.extatic.org/uhub ) daemons on RHEL\CentOS \
+#	       used to provide p2p network services.
+#
+# pidfile: /var/run/uhub.pid
+# config:  /etc/uhub/uhub.conf
+
+
+
+# Source function library.
+if [ -f /etc/init.d/functions ] ; then
+  . /etc/init.d/functions
+elif [ -f /etc/rc.d/init.d/functions ] ; then
+  . /etc/rc.d/init.d/functions
+else
+  exit 1
+fi
+
+# Avoid using root's TMPDIR
+unset TMPDIR
+
+# Source networking configuration.
+. /etc/sysconfig/network
+
+if [ -f /etc/sysconfig/uhub ]; then
+   . /etc/sysconfig/uhub
+fi
+
+# Check that networking is up.
+[ ${NETWORKING} = "no" ] && exit 1
+
+# Check that uhub.conf exists.
+[ -f /etc/uhub/uhub.conf ] || exit 6
+
+RETVAL=0
+
+
+start() {
+        KIND="Uhub"
+	echo -n $"Starting $KIND services: "
+	daemon uhub $UHUBOPTIONS
+	RETVAL=$?
+        echo "" 
+	return $RETVAL
+}	
+
+stop() {
+        KIND="Uhub"
+	echo -n $"Shutting down $KIND services: "
+	killproc uhub
+	RETVAL=$?
+	echo ""
+	return $RETVAL
+}	
+
+restart() {
+	stop
+	start
+}	
+
+reload() {
+        echo -n $"Reloading uhub.conf / user.conf file: "
+	killproc uhub -HUP
+	RETVAL=$?
+	echo ""
+	return $RETVAL
+}	
+
+rhstatus() {
+	status uhub                                                                                                                                                   
+        RETVAL=$?                                                                                                                                                     
+        if [ $RETVAL -ne 0 ] ; then                                                                                                                                   
+                return $RETVAL                                                                                                                                        
+        fi                                                                                                                                                            
+}                 
+
+
+case "$1" in
+  start)
+  	start
+	;;
+  stop)
+  	stop
+	;;
+  restart)
+  	restart
+	;;
+  reload)
+  	reload
+	;;
+  status)
+  	rhstatus
+	;;
+  *)
+	echo $"Usage: $0 {start|stop|restart|reload|status}"
+	exit 2
+esac
+
+exit $?

doc/init.d.RedHat/etc/logrotate.d/uhub

@@ -0,0 +1,14 @@
+# Log rotate for Uhub
+# see man logrotate
+#
+#
+/var/log/uhub.log {
+        compress
+        size 10M
+        rotate 10
+        missingok
+        notifempty
+
+
+}
+

doc/init.d.RedHat/etc/sysconfig/uhub

@@ -0,0 +1,13 @@
+# Options to UHUB
+#  -v          Verbose mode. Add more -v's for higher verbosity.
+#  -q          Quiet mode - no output
+#  -f          Fork to background
+#  -l <file>   Log messages to given file (default: stderr)
+#  -L          Log messages to syslog
+#  -c <file>   Specify configuration file (default: /etc/uhub/uhub.conf)
+#  -S          Show configuration parameters, but ignore defaults
+#  -u <user>   Run as given user
+#  -g <group>  Run with given group permissions
+#  -p <file>   Store pid in file (process id)
+UHUBOPTIONS=" -u uhub -f -p /var/run/uhub.pid -l /var/log/uhub.log"
+

doc/rules.txt

@@ -0,0 +1,5 @@
+1. rule #1
+2. rule #2
+3. rule #3
+......
+34. Rule #34

doc/uhub.1

@@ -0,0 +1,72 @@
+.TH UHUB 1 "March 2009"
+.\" Please adjust this date whenever revising the manpage.
+.\"
+.\" Some roff macros, for reference:
+.\" .nh        disable hyphenation
+.\" .hy        enable hyphenation
+.\" .ad l      left justify
+.\" .ad b      justify to both left and right margins
+.\" .nf        disable filling
+.\" .fi        enable filling
+.\" .br        insert line break
+.\" .sp <n>    insert n+1 empty lines
+.\" for manpage-specific macros, see man(7)
+.SH NAME
+uhub \- a high performance ADC peer-to-peer hub
+.SH SYNOPSIS
+.B uhub
+.RI [ options ]
+.SH DESCRIPTION
+uHub is a high performance peer-to-peer hub for the ADC network.
+Its low memory footprint allows it to handle several thousand users
+on high-end servers, or a small private hub on embedded hardware.
+.SH "OPTIONS"
+.TP
+.BI \^\-v
+Verbose mode, add more -v's for higher verbosity.
+.TP
+.BI \^\-q 
+Quiet mode, if quiet mode is enabled no output or logs are made.
+.TP
+.BI \^\-f
+Fork uhub to background in order to run it as a daemon.
+.TP
+.BI \^\-l " logfile"
+Log messages to the given logfile (default: stderr)
+.TP
+.BI \^\-L
+Log messages to syslog.
+.TP
+.BI \^\-c " config"
+Specify configuration file (default: /etc/uhub/uhub.conf)
+.TP
+.BI \^\-C
+Check configuration files and return. Will print either \"OK\" or \"ERROR\".
+.TP
+.BI \^\-s
+Show all configuration parameters. In a format that is compatible with
+the configuration files.
+.TP
+.BI \^\-S
+Show all non-default configuration parameters.
+.TP
+.BI \^\-h
+Show the help message.
+.TP
+.BI \^\-u " user"
+Drop privileges and run as the given user.
+.TP
+.BI \^\-g " group"
+Drop privileges and run with the given group permissions.
+.TP
+.BI \^\-V
+Show the version number
+.SH EXAMPLES
+To run uhub as a daemon, and log to a file:
+.TP
+.B uhub " -f -l /var/log/uhub/uhub.log"
+.SH AUTHOR
+This program was written by Jan Vidar Krey <janvidar@extatic.org>
+.SH "BUG REPORTS"
+If you find a bug in uhub please report it to
+.B http://bugs.extatic.org/

doc/uhub.conf

@@ -0,0 +1,136 @@
+# uhub.conf - A example configuration file.
+# You should normally place this file in /etc/uhub/uhub.conf
+# And change the file_acl and file_motd below.
+#
+# This file is read only to the uhub deamon, and if you
+# make changes to it while uhub is running you can send a
+# HUP signal to it ( $ killall -HUP uhub ), to reparse configuration (only on UNIX).
+# All configuration directives: http://www.uhub.org/config.php
+
+# Bind to this port and address
+# server_bind_addr=any means listen to "::" if IPv6 is supported
+# by the host OS, otherwise 0.0.0.0.
+server_port=1511
+server_bind_addr=any
+
+# Alternative server ports
+# server_alt_ports = 1512, 1513
+
+# The maximum amount of users allowed on the hub.
+max_users=500
+
+# If 1, will show a "Powered by uHub/{VERSION}".
+show_banner=1
+
+# If enabled then operating system and cpu architecture is part of the banner.
+show_banner_sys_info=1
+
+# Allow only registered users on the hub if set to 1.
+registered_users_only=0
+
+# A server name and description.
+hub_name=my hub
+hub_description=Powered by uHub
+
+# Set this to 0, and the hub will disconnect everyone
+hub_enabled=1
+
+# Access control list (user database)
+file_acl=/etc/uhub/users.conf
+
+# This file can contain a message of the day. A welcome
+# message send to any client when connecting.
+# If the file does not exist, is empty, or cannot be opened
+# the motd will not be sent to the clients.
+# Normally this message is sent to clients when connecting.
+file_motd=/etc/uhub/motd.txt
+
+# This file can contain a rules of the hub.
+# Normally this message is sent to clients when write in chat !rules
+file_rules=/etc/uhub/rules.txt
+
+
+# Slots/share/hubs limits
+limit_max_hubs_user = 0
+limit_max_hubs_reg = 0
+limit_max_hubs_op = 0
+limit_max_hubs = 0
+limit_min_hubs_user = 0
+limit_min_hubs_reg = 0
+limit_min_hubs_op = 0
+limit_min_share = 0
+#    Example:
+#    To require users to share at least 1 GB in order to enter the hub:
+#    limit_min_share = 1024
+limit_max_share = 0
+limit_min_slots = 0
+limit_max_slots = 0
+
+# Flood control support:
+# set the interval to 5 seconds
+flood_ctl_interval = 5
+
+# Then the maximum chat, connect, search, updates etc will be measured over 5 seconds.
+# So, 3 chat messages per 5 seconds allowed.
+flood_ctl_chat=3
+flood_ctl_connect=20
+flood_ctl_search=1
+flood_ctl_update=2
+flood_ctl_extras=5
+
+# chat control
+# if chat_is_privileged=yes only registered users may write in main chat
+chat_is_privileged = no
+
+# if chat_only = yes then search and transfer functionality is disabled for
+# non-operator users.
+chat_only = no
+
+# if obsolete_clients=1 allows old clients to enter , 0 gives an error message (msg_proto_obsolete_adc0) if they try connect
+# defaults obsolete_clients=1
+obsolete_clients=1
+
+
+# Configure status message as sent to clients in different circumstances.
+msg_hub_full                   = Hub is full
+msg_hub_disabled               = Hub is disabled
+msg_hub_registered_users_only  = Hub is for registered users only
+msg_inf_error_nick_missing     = No nickname given
+msg_inf_error_nick_multiple    = Multiple nicknames given
+msg_inf_error_nick_invalid     = Nickname is invalid
+msg_inf_error_nick_long        = Nickname too long
+msg_inf_error_nick_short       = Nickname too short
+msg_inf_error_nick_spaces      = Nickname cannot start with spaces
+msg_inf_error_nick_bad_chars   = Nickname contains invalid characters
+msg_inf_error_nick_not_utf8    = Nickname is not valid utf8
+msg_inf_error_nick_taken       = Nickname is already in use
+msg_inf_error_nick_restricted  = Nickname cannot be used on this hub
+msg_inf_error_cid_invalid      = CID is not valid
+msg_inf_error_cid_missing      = CID is not specified
+msg_inf_error_cid_taken        = CID is taken
+msg_inf_error_pid_missing      = PID is not specified
+msg_inf_error_pid_invalid      = PID is invalid
+msg_ban_permanently            = Banned permanently
+msg_ban_temporarily            = Banned temporarily
+msg_auth_invalid_password      = Password is wrong
+msg_auth_user_not_found        = User not found in password database
+msg_user_share_size_low	       = User is not sharing enough
+msg_user_share_size_high       = User is sharing too much
+msg_user_slots_low	       = User have too few upload slots
+msg_user_slots_high	       = User have too many upload slots
+msg_user_hub_limit_low 	       = User is on too few hubs
+msg_user_hub_limit_high	       = User is on too many hubs
+msg_error_no_memory            = No memory
+msg_user_flood_chat            = Chat flood detected, messages are dropped.
+msg_user_flood_connect         = Connect flood detected, connection refused.
+msg_user_flood_search          = Search flood detected, search is stopped.
+msg_user_flood_update          = Update flood detected.
+msg_user_flood_extras          = Flood detected.
+
+# If a client that supports ADC but not a compatible hash algorithm (tiger),
+# then the hub cannot accept the client:
+msg_proto_no_common_hash       = No common hash algorithm.
+
+# Message to be shown to old clients using an older version of ADC than ADC/1.0
+msg_proto_obsolete_adc0        = Client is using an obsolete ADC protocol version.
+

doc/uhub.dot

@@ -0,0 +1,59 @@
+/**
+ * Overview of uHub
+ */
+digraph G
+{
+
+	"main()" -> "event_dispatch()"
+	
+	"event_dispatch()" -> "net_on_accept()"
+	"event_dispatch()" -> "net_on_read()"
+	"event_dispatch()" -> "net_on_write()"
+	"event_dispatch()" -> "event_queue_process()"
+
+	/* net events */
+	"net_on_write()" -> "net_send()"
+	"net_on_write()" -> "user_disconnect()"
+	"net_on_accept()" -> "user_create()"
+	"net_on_read()" -> "net_recv()"
+	"net_on_read()" -> "user_disconnect()"
+	
+	"net_recv()" -> "hub_handle_message()"
+	
+	/* adc message handling */
+	"hub_handle_message()" -> "hub_handle_password()"
+	"hub_handle_message()" -> "hub_handle_support()"
+	
+	"hub_handle_password()" -> "user_disconnect()"
+	"hub_handle_support()" -> "user_disconnect()"
+	"hub_handle_password()" -> "route_to_user()"
+	"hub_handle_support()" -> "route_to_user()"
+	
+	"hub_handle_message()" -> "hub_handle_info()"
+	"hub_handle_message()" -> "route_message()"
+	"hub_handle_info()" -> "route_to_user()"
+	"hub_handle_info()" -> "route_to_all()"
+	
+	/* message routing, depending on message type */
+	"route_message()" -> "route_to_user()"
+	"route_message()" -> "route_to_all()" -> "route_to_user()"
+	"route_message()" -> "route_to_subscribers()" -> "route_to_user()"
+	
+	"route_to_user()" -> "net_send()"
+	"route_to_user()" -> "queue_command()"
+	"route_to_user()" -> "user_disconnect()"
+	
+	
+	/* Message dispatcher */
+	"event_queue_process()" -> "hub_event_dispatcher()"
+	"hub_event_dispatcher()" -> "EVENT_USER_JOIN"
+	"hub_event_dispatcher()" -> "EVENT_USER_QUIT"
+	"EVENT_USER_QUIT" -> "route_to_all()"
+	"EVENT_USER_QUIT" -> "user_destroy()"
+	"EVENT_USER_JOIN" -> "route_to_all()"
+	
+	/* user_disconnect() -- critical part */
+	"user_disconnect()" -> "user_set_state(state_cleanup)" -> "post: EVENT_USER_QUIT"
+	"user_disconnect()" -> "user_destroy()"
+	
+}

doc/uhub.ebuild

@@ -0,0 +1,42 @@
+# Copyright 1999-2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: $
+inherit eutils
+
+if [ "$PV" != "9999" ]; then
+        SRC_URI="http://www.extatic.org/downloads/uhub/${P}-src.tar.bz2"
+        KEYWORDS="~amd64 ~x86"
+else
+        inherit git
+        SRC_URI=""
+        EGIT_REPO_URI="git://github.com/janvidar/uhub.git"
+        KEYWORDS=""
+fi
+
+EAPI="2"
+
+DESCRIPTION="High performance ADC hub"
+HOMEPAGE="http://www.uhub.org/"
+
+LICENSE="GPL-3"
+SLOT="0"
+IUSE="+ssl"
+
+DEPEND="=dev-lang/perl-5*
+ssl? ( >=dev-libs/openssl-0.9.8 )
+"
+RDEPEND="${DEPEND}"
+src_compile() {
+        $opts=""
+        use ssl && opts="USE_SSL=YES $opts"
+        emake $opts
+}
+src_install() {
+        dodir /usr/bin
+        dodir /etc/uhub
+        emake DESTDIR="${D}" UHUB_PREFIX="${D}/usr" install || die "install failed"
+        newinitd doc/uhub.gentoo.rc uhub || newinitd ${FILESDIR}/uhub.rc uhub
+}
+pkg_postinst() {
+        enewuser uhub
+}

doc/uhub.spec

@@ -0,0 +1,85 @@
+Summary: High performance ADC p2p hub.
+Name: uhub
+Version: 0.3.3
+Release: 3
+License: GPLv3
+Group: Networking/File transfer
+Source: uhub-%{version}.tar.gz
+URL: http://www.uhub.org
+BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
+
+
+%description
+uhub is a high performance peer-to-peer hub for the ADC network.
+Its low memory footprint allows it to handle several thousand users on
+high-end servers, or a small private hub on embedded hardware.
+
+Key features:
+- High performance and low memory usage
+- IPv4 and IPv6 support
+- Experimental SSL support (optional)
+- Advanced access control support
+- Easy configuration
+
+
+%prep
+%setup -q -n %{name}-%{version}
+
+%build
+echo RPM_BUILD_ROOT = $RPM_BUILD_ROOT
+make
+
+%install
+mkdir -p $RPM_BUILD_ROOT/usr/bin
+mkdir -p $RPM_BUILD_ROOT/etc/uhub
+mkdir -p $RPM_BUILD_ROOT/etc/init.d
+mkdir -p $RPM_BUILD_ROOT/etc/logrotate.d
+mkdir -p $RPM_BUILD_ROOT/etc/sysconfig
+mkdir -p $RPM_BUILD_ROOT/usr/share/man/man1
+
+install uhub $RPM_BUILD_ROOT/usr/bin/
+> doc/motd.txt
+install -m644 doc/uhub.conf doc/users.conf doc/rules.txt doc/motd.txt $RPM_BUILD_ROOT/etc/uhub
+install doc/init.d.RedHat/etc/init.d/uhub $RPM_BUILD_ROOT/etc/init.d
+install -m644 doc/init.d.RedHat/etc/sysconfig/uhub  $RPM_BUILD_ROOT/etc/sysconfig/
+install -m644 doc/init.d.RedHat/etc/logrotate.d/uhub $RPM_BUILD_ROOT/etc/logrotate.d/
+/bin/gzip -9c doc/uhub.1 > doc/uhub.1.gz &&
+install -m644 doc/uhub.1.gz $RPM_BUILD_ROOT/usr/share/man/man1
+
+
+%files
+%defattr(-,root,root)
+%doc AUTHORS BUGS COPYING ChangeLog README TODO doc/Doxyfile doc/architecture.txt doc/compile.txt doc/extensions.txt doc/getstarted.txt doc/uhub.dot
+%config(noreplace) /etc/uhub/uhub.conf
+#%{_sysconfdir}/uhub/uhub.conf
+%config(noreplace) %{_sysconfdir}/uhub/users.conf
+%config(noreplace) %{_sysconfdir}/uhub/motd.txt
+%config(noreplace) %{_sysconfdir}/uhub/rules.txt
+%{_sysconfdir}/init.d/uhub
+%config(noreplace) %{_sysconfdir}/logrotate.d/uhub
+%config(noreplace) %{_sysconfdir}/sysconfig/uhub
+/usr/share/man/man1/uhub.1.gz
+%{_bindir}/uhub
+
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%post
+/sbin/chkconfig --add uhub
+if [ $1 -gt 1 ] ; then
+    /etc/rc.d/init.d/uhub restart >/dev/null || :
+fi
+# need more informations about add services and users in system
+/usr/sbin/adduser -M -d /tmp -G nobody -s /sbin/nologin -c 'The Uhub ADC p2p hub Daemon' uhub >/dev/null 2>&1 ||:
+
+%changelog
+* Tue Jan 31 2010 E_zombie
+- change GROUP
+- chmod for files
+- add postinstall scripts
+- fix "License"
+* Tue Jan 26 2010 E_zombie
+- first .spec release
+
+

doc/users.conf

@@ -0,0 +1,51 @@
+# uHub access control lists.
+#
+# Syntax: <command> [data]
+#
+# commands:
+# 'user_reg'   - registered user with no particular privileges (data=nick:password)
+# 'user_op'    - operator, can kick or ban people (data=nick:password)
+# 'user_admin' - administrator, can do everything operators can, and reconfigure the hub (data=nick:password)
+# 'deny_nick'  - nick name that is not accepted (example; Administrator)
+# 'deny_ip'    - Unacceptable IP (masks can be specified as CIDR: 0.0.0.0/32 will block all IPv4)
+# 'ban_nick'   - banned user by nick
+# 'ban_cid'    - banned user by cid
+
+# Administrator
+# user_admin    userA:password1
+# user_op       userB:password2
+
+# We don't want users with these names
+deny_nick Hub-Security
+deny_nick Administrator
+deny_nick root
+deny_nick admin
+deny_nick username
+deny_nick user
+deny_nick guest
+deny_nick operator
+
+# Banned users
+# ban_nick H4X0R
+# ban_cid FOIL5EK2UDZYAXT7UIUFEKL4SEBEAJE3INJDKAY
+
+# ban by ip
+#
+# to ban by CIDR
+# deny_ip 10.21.44.0/24
+#
+# to ban by IP-range.
+# deny_ip 10.21.44.7-10.21.44.9
+#
+# to ban a single IP address
+# deny_ip 10.21.44.7
+# (which is equivalent to using):
+# deny_ip 10.21.44.7/32
+
+# Will not work, yet
+# nat_ip 10.0.0.0/8
+# nat_ip 127.0.0.0/8
+
+# If you have made changes to this file, you must send a HANGUP signal
+# to uHub so that it will re-read the configuration files.
+# For example by invoking: 'killall -HUP uhub'

index.html

@@ -1,63 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="X-UA-Compatible" content="chrome=1">
-    <title>uhub by janvidar</title>
-    
-    <link rel="stylesheet" href="stylesheets/styles.css">
-    <link rel="stylesheet" href="stylesheets/pygment_trac.css">
-    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
-    <!--[if lt IE 9]>
-    <script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
-    <![endif]-->
-  </head>
-  <body>
-    <div class="wrapper">
-      <header>
-        <h1>uhub</h1>
-        <p>A high performance ADC peer to peer message hub.</p>
-        <p class="view"><a href="https://github.com/janvidar/uhub">View the Project on GitHub <small>janvidar/uhub</small></a></p>
-        <ul>
-          <li><a href="https://github.com/janvidar/uhub/zipball/master">Download <strong>ZIP File</strong></a></li>
-          <li><a href="https://github.com/janvidar/uhub/tarball/master">Download <strong>TAR Ball</strong></a></li>
-          <li><a href="https://github.com/janvidar/uhub">Fork On <strong>GitHub</strong></a></li>
-        </ul>
-      </header>
-      <section>
-        <h3>Welcome to GitHub Pages.</h3>
-
-<p>This automatic page generator is the easiest way to create beautiful pages for all of your projects. Author your page content here using GitHub Flavored Markdown, select a template crafted by a designer, and publish. After your page is generated, you can check out the new branch:</p>
-
-<pre><code>$ cd your_repo_root/repo_name
-$ git fetch origin
-$ git checkout gh-pages
-</code></pre>
-
-<p>If you're using the GitHub for Mac, simply sync your repository and you'll see the new branch.</p>
-
-<h3>Designer Templates</h3>
-
-<p>We've crafted some handsome templates for you to use. Go ahead and continue to layouts to browse through them. You can easily go back to edit your page before publishing. After publishing your page, you can revisit the page generator and switch to another theme. Your Page content will be preserved if it remained markdown format.</p>
-
-<h3>Rather Drive Stick?</h3>
-
-<p>If you prefer to not use the automatic generator, push a branch named <code>gh-pages</code> to your repository to create a page manually. In addition to supporting regular HTML content, GitHub Pages support Jekyll, a simple, blog aware static site generator written by our own Tom Preston-Werner. Jekyll makes it easy to create site-wide headers and footers without having to copy them across every page. It also offers intelligent blog support and other advanced templating features.</p>
-
-<h3>Authors and Contributors</h3>
-
-<p>You can <a href="https://github.com/blog/821" class="user-mention">@mention</a> a GitHub username to generate a link to their profile. The resulting <code>&lt;a&gt;</code> element will link to the contributor's GitHub Profile. For example: In 2007, Chris Wanstrath (<a href="https://github.com/defunkt" class="user-mention">@defunkt</a>), PJ Hyett (<a href="https://github.com/pjhyett" class="user-mention">@pjhyett</a>), and Tom Preston-Werner (<a href="https://github.com/mojombo" class="user-mention">@mojombo</a>) founded GitHub.</p>
-
-<h3>Support or Contact</h3>
-
-<p>Having trouble with Pages? Check out the documentation at <a href="http://help.github.com/pages">http://help.github.com/pages</a> or contact <a href="mailto:support@github.com">support@github.com</a> and we’ll help you sort it out.</p>
-      </section>
-      <footer>
-        <p>This project is maintained by <a href="https://github.com/janvidar">janvidar</a></p>
-        <p><small>Hosted on GitHub Pages &mdash; Theme by <a href="https://github.com/orderedlist">orderedlist</a></small></p>
-      </footer>
-    </div>
-    <script src="javascripts/scale.fix.js"></script>
-    
-  </body>
-</html>

javascripts/scale.fix.js

@@ -1,17 +0,0 @@
-var metas = document.getElementsByTagName('meta');
-var i;
-if (navigator.userAgent.match(/iPhone/i)) {
-  for (i=0; i<metas.length; i++) {
-    if (metas[i].name == "viewport") {
-      metas[i].content = "width=device-width, minimum-scale=1.0, maximum-scale=1.0";
-    }
-  }
-  document.addEventListener("gesturestart", gestureStart, false);
-}
-function gestureStart() {
-  for (i=0; i<metas.length; i++) {
-    if (metas[i].name == "viewport") {
-      metas[i].content = "width=device-width, minimum-scale=0.25, maximum-scale=1.6";
-    }
-  }
-}

params.json

@@ -1 +0,0 @@
-{"name":"uhub","body":"### Welcome to GitHub Pages.\r\nThis automatic page generator is the easiest way to create beautiful pages for all of your projects. Author your page content here using GitHub Flavored Markdown, select a template crafted by a designer, and publish. After your page is generated, you can check out the new branch:\r\n\r\n```\r\n$ cd your_repo_root/repo_name\r\n$ git fetch origin\r\n$ git checkout gh-pages\r\n```\r\n\r\nIf you're using the GitHub for Mac, simply sync your repository and you'll see the new branch.\r\n\r\n### Designer Templates\r\nWe've crafted some handsome templates for you to use. Go ahead and continue to layouts to browse through them. You can easily go back to edit your page before publishing. After publishing your page, you can revisit the page generator and switch to another theme. Your Page content will be preserved if it remained markdown format.\r\n\r\n### Rather Drive Stick?\r\nIf you prefer to not use the automatic generator, push a branch named `gh-pages` to your repository to create a page manually. In addition to supporting regular HTML content, GitHub Pages support Jekyll, a simple, blog aware static site generator written by our own Tom Preston-Werner. Jekyll makes it easy to create site-wide headers and footers without having to copy them across every page. It also offers intelligent blog support and other advanced templating features.\r\n\r\n### Authors and Contributors\r\nYou can @mention a GitHub username to generate a link to their profile. The resulting `<a>` element will link to the contributor's GitHub Profile. For example: In 2007, Chris Wanstrath (@defunkt), PJ Hyett (@pjhyett), and Tom Preston-Werner (@mojombo) founded GitHub.\r\n\r\n### Support or Contact\r\nHaving trouble with Pages? Check out the documentation at http://help.github.com/pages or contact support@github.com and we’ll help you sort it out.","tagline":"A high performance ADC peer to peer message hub.","google":"","note":"Don't delete this file! It's used internally to help with page regeneration."}

src/adc/adcconst.h

@@ -0,0 +1,142 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_ADC_CONSTANTS_H
+#define HAVE_UHUB_ADC_CONSTANTS_H
+
+typedef uint32_t sid_t;
+typedef uint32_t fourcc_t;
+
+/* Internal uhub limit */
+#define MAX_ADC_CMD_LEN 4096
+
+#define FOURCC(a,b,c,d) (fourcc_t) ((a << 24) | (b << 16) | (c << 8) | d)
+
+/* default welcome protocol support message, as sent by this server */
+#define ADC_PROTO_SUPPORT "ADBASE ADTIGR ADPING"
+
+/* Server sent commands */
+#define ADC_CMD_ISID FOURCC('I','S','I','D')
+#define ADC_CMD_ISUP FOURCC('I','S','U','P')
+#define ADC_CMD_IGPA FOURCC('I','G','P','A')
+#define ADC_CMD_ISTA FOURCC('I','S','T','A')
+#define ADC_CMD_IINF FOURCC('I','I','N','F')
+#define ADC_CMD_IMSG FOURCC('I','M','S','G')
+#define ADC_CMD_IQUI FOURCC('I','Q','U','I')
+
+/* Handshake and login/passwordstuff */
+#define ADC_CMD_HSUP FOURCC('H','S','U','P')
+#define ADC_CMD_HPAS FOURCC('H','P','A','S')
+#define ADC_CMD_HINF FOURCC('H','I','N','F')
+#define ADC_CMD_BINF FOURCC('B','I','N','F')
+
+/* This is a Admin extension */
+#define ADC_CMD_HDSC FOURCC('H','D','S','C')
+
+/* Status/error messages */
+#define ADC_CMD_HSTA FOURCC('H','S','T','A')
+#define ADC_CMD_DSTA FOURCC('D','S','T','A')
+
+/* searches */
+#define ADC_CMD_BSCH FOURCC('B','S','C','H')
+#define ADC_CMD_DSCH FOURCC('D','S','C','H')
+#define ADC_CMD_ESCH FOURCC('E','S','C','H')
+#define ADC_CMD_FSCH FOURCC('F','S','C','H')
+#define ADC_CMD_DRES FOURCC('D','R','E','S')
+
+/* connection setup */
+#define ADC_CMD_DCTM FOURCC('D','C','T','M')
+#define ADC_CMD_DRCM FOURCC('D','R','C','M')
+#define ADC_CMD_ECTM FOURCC('E','C','T','M')
+#define ADC_CMD_ERCM FOURCC('E','R','C','M')
+
+/* chat messages */
+#define ADC_CMD_BMSG FOURCC('B','M','S','G')
+#define ADC_CMD_DMSG FOURCC('D','M','S','G')
+#define ADC_CMD_EMSG FOURCC('E','M','S','G')
+#define ADC_CMD_FMSG FOURCC('F','M','S','G')
+
+/* disallowed messages */
+#define ADC_CMD_DINF FOURCC('D','I','N','F')
+#define ADC_CMD_EINF FOURCC('E','I','N','F')
+#define ADC_CMD_FINF FOURCC('F','I','N','F')
+
+/* Extension messages */
+#define ADC_CMD_HCHK FOURCC('H','C','H','K')
+
+#define ADC_INF_FLAG_IPV4_ADDR          "I4" /* ipv4 address */
+#define ADC_INF_FLAG_IPV6_ADDR          "I6" /* ipv6 address */
+#define ADC_INF_FLAG_IPV4_UDP_PORT      "U4" /* port number */
+#define ADC_INF_FLAG_IPV6_UDP_PORT      "U6" /* port number */
+#define ADC_INF_FLAG_CLIENT_TYPE        "CT" /* client type */
+#define ADC_INF_FLAG_PRIVATE_ID         "PD" /* private id, aka PID */
+#define ADC_INF_FLAG_CLIENT_ID          "ID" /* client id, aka CID */
+#define ADC_INF_FLAG_NICK               "NI" /* nick name */
+#define ADC_INF_FLAG_DESCRIPTION        "DE" /* user description */
+#define ADC_INF_FLAG_USER_AGENT         "VE" /* software version */
+#define ADC_INF_FLAG_SUPPORT            "SU" /* support (extensions, feature cast) */
+#define ADC_INF_FLAG_SHARED_SIZE        "SS" /* size of total files shared in bytes */
+#define ADC_INF_FLAG_SHARED_FILES       "SF" /* number of files shared */
+#define ADC_INF_FLAG_UPLOAD_SPEED       "US" /* maximum upload speed acheived in bytes/sec */
+#define ADC_INF_FLAG_DOWNLOAD_SPEED     "DS" /* maximum download speed acheived in bytes/sec */
+#define ADC_INF_FLAG_UPLOAD_SLOTS       "SL" /* maximum upload slots (concurrent uploads) */
+#define ADC_INF_FLAG_AUTO_SLOTS         "AS" /* automatic slot if upload speed is less than this in bytes/sec */
+#define ADC_INF_FLAG_AUTO_SLOTS_MAX     "AM" /* maximum number of automatic slots */
+#define ADC_INF_FLAG_COUNT_HUB_NORMAL   "HN" /* user is logged into this amount of hubs as a normal user (guest) */
+#define ADC_INF_FLAG_COUNT_HUB_REGISTER "HR" /* user is logged into this amount of hubs as a registered user (password) */
+#define ADC_INF_FLAG_COUNT_HUB_OPERATOR "HO" /* user is logged into this amount of hubs as an operator */
+#define ADC_INF_FLAG_AWAY               "AW" /* away flag, 1=away, 2=extended away */
+#define ADC_INF_FLAG_REFERER            "RF" /* URL to referer in case of hub redirect */
+#define ADC_INF_FLAG_EMAIL              "EM" /* E-mail address */
+
+#define ADC_MSG_FLAG_ACTION             "ME" /* message is an *action* message */
+#define ADC_MSG_FLAG_PRIVATE            "PM" /* message is a private message */
+
+#define ADC_SCH_FLAG_INCLUDE            "AN" /* include given search term */
+#define ADC_SCH_FLAG_EXCLUDE            "NO" /* exclude given serach term */
+#define ADC_SCH_FLAG_FILE_EXTENSION     "EX" /* search only for files with the given file extension */
+#define ADC_SCH_FLAG_FILE_TYPE          "TY" /* search only for files with this file type (separate type) */
+#define ADC_SCH_FLAG_LESS_THAN          "LE" /* search for files with this size or less */
+#define ADC_SCH_FLAG_GREATER_THAN       "GE" /* search for files with this size or greater */
+#define ADC_SCH_FLAG_EQUAL              "EQ" /* search only for files with this exact size */
+#define ADC_SCH_FLAG_TOKEN              "TO" /* use this token for search replies */
+
+#define ADC_RES_FLAG_FILE_NAME          "FN" /* file name */
+#define ADC_RES_FLAG_FILE_SIZE          "SI" /* file size */
+#define ADC_RES_FLAG_UPLOAD_SLOTS       "SL" /* number of upload slots available (if > 0, download is possible) */
+#define ADC_RES_FLAG_TOKEN              "TO" /* token, same as the token in the search request */
+
+#define ADC_QUI_FLAG_TIME_LEFT          "TL" /* time in seconds before reconnect is allowed, or -1 forever */
+#define ADC_QUI_FLAG_MESSAGE            "MS" /* kick/leave message */
+#define ADC_QUI_FLAG_DISCONNECT         "DI" /* all further transfers with this user should be disconnected */
+#define ADC_QUI_FLAG_REDIRECT           "RD" /* redirect to URL */
+#define ADC_QUI_FLAG_KICK_OPERATOR      "ID" /* SID of operator who disconnected the user */
+
+#define ADC_SUP_FLAG_ADD                "AD"
+#define ADC_SUP_FLAG_REMOVE             "RM"
+
+#define ADC_CLIENT_TYPE_BOT             "1"
+#define ADC_CLIENT_TYPE_REGISTERED_USER "2"
+#define ADC_CLIENT_TYPE_OPERATOR        "4"
+#define ADC_CLIENT_TYPE_SUPER_USER      "12"  /* 8 + 4 */
+#define ADC_CLIENT_TYPE_ADMIN           "20"  /* 16 + 4 = hub owner */
+#define ADC_CLIENT_TYPE_HUB             "32"  /* the hub itself */
+
+
+#endif /* HAVE_UHUB_ADC_CONSTANTS_H */

src/adc/message.c

@@ -0,0 +1,909 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+#ifdef DEBUG
+#define ADC_MSG_ASSERT(X) \
+	uhub_assert(X); \
+	uhub_assert(X->cache); \
+	uhub_assert(X->capacity); \
+	uhub_assert(X->length); \
+	uhub_assert(X->length <= X->capacity); \
+	uhub_assert(X->references > 0); \
+	uhub_assert(X->length == strlen(X->cache));
+#define ADC_MSG_NULL_ON_FREE
+#else
+#define ADC_MSG_ASSERT(X) do { } while(0)
+#endif /* DEBUG */
+
+#ifdef MSG_MEMORY_DEBUG
+#undef msg_malloc
+#undef msg_malloc_zero
+#undef msg_free
+
+static void* msg_malloc(size_t size)
+{
+	void* ptr = valloc(size);
+	LOG_MEMORY("msg_malloc: %p %d", ptr, (int) size);
+	return ptr;
+}
+
+static void* msg_malloc_zero(size_t size)
+{
+	void* ptr = msg_malloc(size);
+	memset(ptr, 0, size);
+	return ptr;
+}
+
+static void msg_free(void* ptr)
+{
+	LOG_MEMORY("msg_free:   %p", ptr);
+	hub_free(ptr);
+}
+#else
+#define msg_malloc(X)       hub_malloc(X)
+#define msg_malloc_zero(X)  hub_malloc_zero(X)
+#define msg_free(X)         hub_free(X)
+#endif /* MSG_MEMORY_DEBUG */
+
+
+struct adc_message* adc_msg_incref(struct adc_message* msg)
+{
+#ifndef ADC_MESSAGE_INCREF
+	msg->references++;
+#ifdef MSG_MEMORY_DEBUG
+	adc_msg_protect(msg);
+#endif
+	return msg;
+#else
+	struct adc_message* copy = adc_msg_copy(msg);
+	return copy;
+#endif
+}
+
+static void adc_msg_set_length(struct adc_message* msg, size_t len)
+{
+	msg->length = len;
+}
+
+static int adc_msg_grow(struct adc_message* msg, size_t size)
+{
+	char* buf;
+	size_t newsize = 0;
+
+	if (!msg)
+		return 0;
+
+	if (msg->capacity > size)
+		return 1;
+
+	/* Make sure we align our data */
+	newsize = size;
+	newsize += 2; /* termination */
+	newsize += (newsize % sizeof(size_t)); /* alignment padding */
+
+	buf = msg_malloc_zero(newsize);
+	if (!buf)
+		return 0;
+
+	if (msg->cache)
+	{
+		memcpy(buf, msg->cache, msg->length);
+		msg_free(msg->cache);
+	}
+
+	msg->cache = buf;
+	msg->capacity = newsize;
+
+	return 1;
+}
+
+/* NOTE: msg must be unterminated here */
+static int adc_msg_cache_append(struct adc_message* msg, const char* string, size_t len)
+{
+	if (!adc_msg_grow(msg, msg->length + len))
+	{
+		/* FIXME: OOM! */
+		return 0;
+	}
+
+	memcpy(&msg->cache[msg->length], string, len);
+	adc_msg_set_length(msg, msg->length + len);
+
+	assert(msg->capacity > msg->length);
+	msg->cache[msg->length] = 0;
+	return 1;
+}
+
+/**
+ * Returns position of the first argument of the message.
+ * Excludes mandatory arguments for the given type of message
+ * like source and target.
+ */
+int adc_msg_get_arg_offset(struct adc_message* msg)
+{
+	if (!msg || !msg->cache)
+		return -1;
+	
+	switch (msg->cache[0])
+	{
+		/* These *SHOULD* never be seen on a hub */
+		case 'U':
+		case 'C':
+			return 4; /* Actually: 4 + strlen(cid). */
+		
+		case 'I':
+		case 'H':
+			return 4;
+			
+		case 'B':
+			return  9;
+			
+		case 'F':
+			return (10 + (list_size(msg->feature_cast_include)*5) + (list_size(msg->feature_cast_exclude)*5));
+			
+		case 'D':
+		case 'E':
+			return 14;
+	}
+	return -1;
+}
+
+
+int adc_msg_is_empty(struct adc_message* msg)
+{
+	int offset = adc_msg_get_arg_offset(msg);
+
+	if (offset == -1)
+		return -1;
+	
+	if ((msg->length - 1) == (size_t) offset)
+		return 1;
+		
+	return 0;
+}
+
+
+void adc_msg_free(struct adc_message* msg)
+{
+	if (!msg) return;
+
+	ADC_MSG_ASSERT(msg);
+
+	msg->references--;
+
+	if (msg->references == 0)
+	{
+#ifdef ADC_MSG_NULL_ON_FREE
+		if (msg->cache)
+		{
+			*msg->cache = 0;
+		}
+#endif
+		msg_free(msg->cache);
+
+		if (msg->feature_cast_include)
+		{
+			list_clear(msg->feature_cast_include, &hub_free);
+			list_destroy(msg->feature_cast_include);
+			msg->feature_cast_include = 0;
+		}
+
+		if (msg->feature_cast_exclude)
+		{
+			list_clear(msg->feature_cast_exclude, &hub_free);
+			list_destroy(msg->feature_cast_exclude);
+			msg->feature_cast_exclude = 0;
+		}
+
+		msg_free(msg);
+	}
+}
+
+
+struct adc_message* adc_msg_copy(const struct adc_message* cmd)
+{
+	char* tmp = 0;
+	struct adc_message* copy = (struct adc_message*) msg_malloc_zero(sizeof(struct adc_message));
+	if (!copy) return NULL; /* OOM */
+
+	ADC_MSG_ASSERT(cmd);
+
+	/* deep copy */
+	copy->cmd                  = cmd->cmd;
+	copy->source               = cmd->source;
+	copy->target               = cmd->target;
+	copy->cache                = 0;
+	copy->length               = cmd->length;
+	copy->capacity             = 0;
+	copy->priority             = cmd->priority;
+	copy->references           = 1;
+	copy->feature_cast_include = 0;
+	copy->feature_cast_exclude = 0;
+
+	if (!adc_msg_grow(copy, copy->length))
+	{
+		adc_msg_free(copy);
+		return NULL; /* OOM */
+	}
+
+	if (!copy->cache)
+	{
+		adc_msg_free(copy);
+		return NULL;
+	}
+
+	memcpy(copy->cache, cmd->cache, cmd->length);
+	copy->cache[copy->length] = 0;
+
+	if (cmd->feature_cast_include)
+	{
+		copy->feature_cast_include = list_create();
+		tmp = list_get_first(cmd->feature_cast_include);
+		while (tmp)
+		{
+			list_append(copy->feature_cast_include, hub_strdup(tmp));
+			tmp = list_get_next(cmd->feature_cast_include);
+		}
+	}
+
+	if (cmd->feature_cast_exclude)
+	{
+		copy->feature_cast_exclude = list_create();
+		tmp = list_get_first(cmd->feature_cast_exclude);
+		while (tmp)
+		{
+			list_append(copy->feature_cast_exclude, hub_strdup(tmp));
+			tmp = list_get_next(cmd->feature_cast_exclude);
+		}
+	}
+
+	ADC_MSG_ASSERT(copy);
+
+	return copy;
+}
+
+
+struct adc_message* adc_msg_parse_verify(struct hub_user* u, const char* line, size_t length)
+{
+	struct adc_message* command = adc_msg_parse(line, length);
+	
+	if (!command)
+		return 0;
+	
+	if (command->source && (!u || command->source != u->id.sid))
+	{
+		LOG_DEBUG("Command does not match user's SID (command->source=%d, user->id.sid=%d)", command->source, (u ? u->id.sid : 0));
+		adc_msg_free(command);
+		return 0;
+	}
+	
+	return command;
+}
+
+
+struct adc_message* adc_msg_parse(const char* line, size_t length)
+{
+	struct adc_message* command = (struct adc_message*) msg_malloc_zero(sizeof(struct adc_message));
+	char prefix = line[0];
+	size_t n = 0;
+	char temp_sid[5];
+	int ok = 1;
+	int need_terminate = 0;
+	struct linked_list* feature_cast_list;
+	
+	if (command == NULL)
+		return NULL; /* OOM */
+
+	if (!is_printable_utf8(line, length))
+	{
+		LOG_DEBUG("Dropped message with non-printable UTF-8 characters.");
+		msg_free(command);
+		return NULL;
+	}
+
+	if (line[length-1] != '\n')
+	{
+		need_terminate = 1;
+	}
+
+	if (!adc_msg_grow(command, length + need_terminate))
+	{
+		msg_free(command);
+		return NULL; /* OOM */
+	}
+
+	adc_msg_set_length(command, length + need_terminate);
+	memcpy(command->cache, line, length);
+
+	/* Ensure we are zero terminated */
+	command->cache[length] = 0;
+	command->cache[length+need_terminate] = 0;
+
+	command->cmd = FOURCC(line[0], line[1], line[2], line[3]);
+	command->priority = 0;
+	command->references = 1;
+
+	switch (prefix)
+	{
+		case 'U':
+		case 'C':
+			/* these should never be seen on a hub */
+			ok = 0;
+			break;
+
+		case 'I':
+		case 'H':
+			ok = (length > 3);
+			break;
+
+		case 'B':
+			ok = (length > 8 &&
+					is_space(line[4]) &&
+					is_valid_base32_char(line[5]) &&
+					is_valid_base32_char(line[6]) &&
+					is_valid_base32_char(line[7]) &&
+					is_valid_base32_char(line[8]));
+
+			if (!ok) break;
+
+			temp_sid[0] = line[5];
+			temp_sid[1] = line[6];
+			temp_sid[2] = line[7];
+			temp_sid[3] = line[8];
+			temp_sid[4] = '\0';
+
+			command->source = string_to_sid(temp_sid);
+			break;
+
+		case 'F':
+			ok = (length > 8 &&
+					is_space(line[4]) &&
+					is_valid_base32_char(line[5]) &&
+					is_valid_base32_char(line[6]) &&
+					is_valid_base32_char(line[7]) &&
+					is_valid_base32_char(line[8]));
+
+			if (!ok) break;
+
+			temp_sid[0] = line[5];
+			temp_sid[1] = line[6];
+			temp_sid[2] = line[7];
+			temp_sid[3] = line[8];
+			temp_sid[4] = '\0';
+
+			command->source = string_to_sid(temp_sid);
+
+			/* Create feature cast lists */
+			command->feature_cast_include = list_create();
+			command->feature_cast_exclude = list_create();
+
+			if (!command->feature_cast_include || !command->feature_cast_exclude)
+			{
+				list_destroy(command->feature_cast_include);
+				list_destroy(command->feature_cast_exclude);
+				msg_free(command->cache);
+				msg_free(command);
+				return NULL; /* OOM */
+			}
+
+			n = 10;
+			while (line[n] == '+' || line[n] == '-')
+			{
+				if (line[n++] == '+')
+					feature_cast_list = command->feature_cast_include;
+				else
+					feature_cast_list = command->feature_cast_exclude;
+
+				temp_sid[0] = line[n++];
+				temp_sid[1] = line[n++];
+				temp_sid[2] = line[n++];
+				temp_sid[3] = line[n++];
+				temp_sid[4] = '\0';
+
+				list_append(feature_cast_list, hub_strdup(temp_sid));
+			}
+
+			if  (n == 10)
+				ok = 0;
+			break;
+
+		case 'D':
+		case 'E':
+			ok = (length > 13 &&
+					is_space(line[4]) &&
+					is_valid_base32_char(line[5]) &&
+					is_valid_base32_char(line[6]) &&
+					is_valid_base32_char(line[7]) &&
+					is_valid_base32_char(line[8]) &&
+					is_space(line[9]) &&
+					is_valid_base32_char(line[10]) &&
+					is_valid_base32_char(line[11]) &&
+					is_valid_base32_char(line[12]) &&
+					is_valid_base32_char(line[13]));
+
+			if (!ok) break;
+
+			temp_sid[0] = line[5];
+			temp_sid[1] = line[6];
+			temp_sid[2] = line[7];
+			temp_sid[3] = line[8];
+			temp_sid[4] = '\0';
+
+			command->source = string_to_sid(temp_sid);
+
+			temp_sid[0] = line[10];
+			temp_sid[1] = line[11];
+			temp_sid[2] = line[12];
+			temp_sid[3] = line[13];
+			temp_sid[4] = '\0';
+
+			command->target = string_to_sid(temp_sid);
+			break;
+
+		default:
+			ok = 0;
+	}
+
+	if (need_terminate)
+	{
+		command->cache[length] = '\n';
+	}
+
+	if (!ok)
+	{
+		adc_msg_free(command);
+		return NULL;
+	}
+
+	/* At this point the arg_offset should point to a space, or the end of message */
+	n = adc_msg_get_arg_offset(command);
+	if (command->cache[n] == ' ')
+	{
+		if (command->cache[n+1] == ' ') ok = 0;
+	}
+	else if (command->cache[n] == '\n') ok = 1;
+	else ok = 0;
+
+	if (!ok)
+	{
+		adc_msg_free(command);
+		return NULL;
+	}
+
+	ADC_MSG_ASSERT(command);
+	return command;
+}
+
+
+struct adc_message* adc_msg_create(const char* line)
+{
+	return adc_msg_parse(line, strlen(line));
+}
+
+
+struct adc_message* adc_msg_construct(fourcc_t fourcc, size_t size)
+{
+	struct adc_message* msg = (struct adc_message*) msg_malloc_zero(sizeof(struct adc_message));
+	if (!msg)
+		return NULL; /* OOM */
+
+	if (size < sizeof(fourcc)) size = sizeof(fourcc);
+
+	if (!adc_msg_grow(msg, size+1))
+	{
+		msg_free(msg);
+		return NULL; /* OOM */
+	}
+
+	if (fourcc)
+	{
+		msg->cache[0] = (char) ((fourcc >> 24) & 0xff);
+		msg->cache[1] = (char) ((fourcc >> 16) & 0xff);
+		msg->cache[2] = (char) ((fourcc >>  8) & 0xff);
+		msg->cache[3] = (char) ((fourcc      ) & 0xff);
+		msg->cache[4] = '\n';
+
+		/* Ensure we are zero terminated */
+		adc_msg_set_length(msg, 5);
+		msg->cache[msg->length] = 0;
+	}
+
+	msg->cmd = fourcc;
+	msg->priority = 0;
+	msg->references = 1;
+	return msg;
+}
+
+
+int adc_msg_remove_named_argument(struct adc_message* cmd, const char prefix_[2])
+{
+	char* start;
+	char* end;
+	char* endInfo;
+	size_t endlen;
+	char prefix[4] = { ' ', prefix_[0], prefix_[1], '\0' };
+	int found = 0;
+	int arg_offset = adc_msg_get_arg_offset(cmd);
+	size_t temp_len = 0;
+	
+	adc_msg_unterminate(cmd);
+	
+	start = memmem(&cmd->cache[arg_offset], (cmd->length - arg_offset), prefix, 3);
+	while (start)
+	{
+		endInfo = &cmd->cache[cmd->length];
+	
+		if  (&start[0] < &endInfo[0])
+		{
+			end = memchr(&start[1], ' ', &endInfo[0]-&start[1]);
+		}
+		else
+		{
+			end = NULL;
+		}
+		
+		if (end)
+		{
+			
+			temp_len = &end[0] - &start[0]; // strlen(start);
+			endlen = strlen(end);
+			
+			memmove(start, end, endlen);
+			start[endlen] = '\0';
+			found++;
+			adc_msg_set_length(cmd, cmd->length - temp_len);
+		}
+		else
+		{
+			found++;
+			adc_msg_set_length(cmd, cmd->length - strlen(start));
+			start[0] = '\0';
+			break;
+		}
+		start = memmem(&cmd->cache[arg_offset], (cmd->length - arg_offset), prefix, 3);
+	}
+	
+	adc_msg_terminate(cmd);
+	
+	return found;
+}
+
+
+int adc_msg_has_named_argument(struct adc_message* cmd, const char prefix_[2])
+{
+	int count = 0;
+	char* start;
+	char prefix[4] = { ' ', prefix_[0], prefix_[1], '\0' };
+	int arg_offset = adc_msg_get_arg_offset(cmd);
+
+	ADC_MSG_ASSERT(cmd);
+
+	start = memmem(&cmd->cache[arg_offset], (cmd->length - arg_offset), prefix, 3);
+	while (start)
+	{
+		count++;
+		if ((&start[0] - &cmd->cache[0]) < 1+cmd->length)
+			start = memmem(&start[1], (&cmd->cache[cmd->length] - &start[0]), prefix, 3);
+		else
+			start = NULL;
+	}
+
+	return count;
+}
+
+
+char* adc_msg_get_named_argument(struct adc_message* cmd, const char prefix_[2])
+{
+	char* start;
+	char* end;
+	char* argument;
+	size_t length;
+	char prefix[4] = { ' ', prefix_[0], prefix_[1], '\0' };
+	int arg_offset = adc_msg_get_arg_offset(cmd);
+
+	ADC_MSG_ASSERT(cmd);
+
+	start = memmem(&cmd->cache[arg_offset], cmd->length - arg_offset, prefix, 3);
+	if (!start)
+		return NULL;
+
+	start = &start[3];
+	end = strchr(start, ' ');
+	if (!end) end = &cmd->cache[cmd->length];
+	length = &end[0] - &start[0];
+
+	argument = hub_strndup(start, length);
+	
+	if (length > 0 && argument[length-1] == '\n')
+	{
+		argument[length-1] = 0;
+	}
+
+	return argument;
+}
+
+
+int adc_msg_replace_named_argument(struct adc_message* cmd, const char prefix[2], const char* string)
+{
+	ADC_MSG_ASSERT(cmd);
+
+	while (adc_msg_has_named_argument(cmd, prefix))
+	{
+		adc_msg_remove_named_argument(cmd, prefix);
+	}
+
+	if (adc_msg_add_named_argument(cmd, prefix, string) == -1)
+	{
+		return -1;
+	}
+
+	ADC_MSG_ASSERT(cmd);
+
+	return 0;
+}
+
+
+void adc_msg_terminate(struct adc_message* cmd)
+{
+	if (cmd->cache[cmd->length - 1] != '\n')
+	{
+		adc_msg_cache_append(cmd, "\n", 1);
+	}
+	ADC_MSG_ASSERT(cmd);
+}
+
+/* FIXME: this looks bogus */
+void adc_msg_unterminate(struct adc_message* cmd)
+{
+	ADC_MSG_ASSERT(cmd);
+
+	if (cmd->length > 0 && cmd->cache[cmd->length-1] == '\n')
+	{
+		cmd->length--;
+		cmd->cache[cmd->length] = 0;
+	}
+}
+
+int adc_msg_add_named_argument(struct adc_message* cmd, const char prefix[2], const char* string)
+{
+	int ret = 0;
+	if (!string)
+		return -1;
+
+	ADC_MSG_ASSERT(cmd);
+
+	adc_msg_unterminate(cmd);
+	adc_msg_cache_append(cmd, " ", 1);
+	adc_msg_cache_append(cmd, prefix, 2);
+	adc_msg_cache_append(cmd, string, strlen(string));
+	adc_msg_terminate(cmd);
+	return ret;
+}
+
+int adc_msg_add_named_argument_string(struct adc_message* cmd, const char prefix[2], const char* string)
+{
+	char* escaped = adc_msg_escape(string);
+	int ret = adc_msg_add_named_argument(cmd, prefix, escaped);
+	hub_free(escaped);
+	return ret;
+}
+
+int adc_msg_add_named_argument_int(struct adc_message* cmd, const char prefix[2], int num)
+{
+	const char* s = uhub_itoa(num);
+	int ret = adc_msg_add_named_argument(cmd, prefix, s);
+	return ret;
+}
+
+int adc_msg_add_named_argument_uint64(struct adc_message* cmd, const char prefix[2], uint64_t num)
+{
+	const char* s = uhub_ulltoa(num);
+	int ret = adc_msg_add_named_argument(cmd, prefix, s);
+	return ret;
+}
+
+int adc_msg_add_argument(struct adc_message* cmd, const char* string)
+{
+	ADC_MSG_ASSERT(cmd);
+
+	adc_msg_unterminate(cmd);
+	adc_msg_cache_append(cmd, " ", 1);
+	adc_msg_cache_append(cmd, string, strlen(string));
+	adc_msg_terminate(cmd);
+	return 0;
+}
+
+
+char* adc_msg_get_argument(struct adc_message* cmd, int offset)
+{
+	char* start;
+	char* end;
+	char* argument;
+	int count = 0;
+
+	ADC_MSG_ASSERT(cmd);
+
+	adc_msg_unterminate(cmd);
+
+	start = strchr(&cmd->cache[adc_msg_get_arg_offset(cmd)-1], ' ');
+	while (start)
+	{
+		end = strchr(&start[1], ' ');
+		if (count == offset)
+		{
+			if (end)
+			{
+				argument = hub_strndup(&start[1], (&end[0] - &start[1]));
+			}
+			else
+			{
+				argument = hub_strdup(&start[1]);
+				if (argument && *argument && argument[strlen(argument)-1] == '\n')
+					argument[strlen(argument)-1] = 0;
+			}
+
+			if (!argument)
+				return 0; // FIXME: OOM
+
+			if (*argument)
+			{
+				adc_msg_terminate(cmd);
+				return argument;
+			}
+			else
+			{
+				hub_free(argument);
+			}
+		}
+		count++;
+		start = end;
+	}
+
+	adc_msg_terminate(cmd);
+	return 0;
+}
+
+/**
+ * NOTE: Untested code.
+ */
+int adc_msg_get_argument_index(struct adc_message* cmd, const char prefix[2])
+{
+	char* start;
+	char* end;
+	int count = 0;
+
+	ADC_MSG_ASSERT(cmd);
+
+	adc_msg_unterminate(cmd);
+
+	start = strchr(&cmd->cache[adc_msg_get_arg_offset(cmd)-1], ' ');
+	while (start)
+	{
+		end = strchr(&start[1], ' ');
+		if (((&end[0] - &start[1]) > 2) && ((start[1] == prefix[0]) && (start[2] == prefix[1])))
+		{
+			adc_msg_terminate(cmd);
+			return count;
+		}
+		count++;
+		start = end;
+	}
+	adc_msg_terminate(cmd);
+	return -1;
+}
+
+
+
+int adc_msg_escape_length(const char* str)
+{
+	int add = 0;
+	int n = 0;
+	for (; str[n]; n++)
+		if (str[n] == ' ' || str[n] == '\n' || str[n] == '\\') add++;
+	return n + add;
+}
+
+
+int adc_msg_unescape_length(const char* str)
+{
+	int add = 0;
+	int n = 0;
+	int escape = 0;
+	for (; str[n]; n++)
+	{
+		if (escape)
+		{
+			escape = 0;
+		}
+		else
+		{
+			if (str[n] == '\\')
+			{
+				escape = 1;
+				add++;
+			}
+		}
+	}
+	return n - add;
+}
+
+
+char* adc_msg_unescape(const char* string)
+{
+	char* new_string = msg_malloc(adc_msg_unescape_length(string)+1);
+	char* ptr = (char*) new_string;
+	char* str = (char*) string;
+	int escaped = 0;
+
+	while (*str)
+	{
+		if (escaped) {
+			if (*str == 's')
+				*ptr++ = ' ';
+			else if (*str == '\\')
+				*ptr++ = '\\';
+			else if (*str == 'n')
+				*ptr++ = '\n';
+			else
+				*ptr++ = *str;
+			escaped = 0;
+		} else {
+			if (*str == '\\')
+				escaped = 1;
+			else
+				*ptr++ = *str;
+		}
+		str++;
+	}
+	*ptr = 0;
+	return new_string;
+}
+
+
+char* adc_msg_escape(const char* string)
+{
+	char* str = hub_malloc(adc_msg_escape_length(string)+1);
+	int n = 0;
+	int i = 0;
+	for (i = 0; i < strlen(string); i++)
+	{
+		switch (string[i]) {
+			case '\\': /* fall through */
+					str[n++] = '\\';
+					str[n++] = '\\';
+					break;
+			case '\n':
+					str[n++] = '\\';
+					str[n++] = 'n';
+					break;
+			case ' ':
+					str[n++] = '\\';
+					str[n++] = 's';
+					break;
+			default:
+					str[n++] = string[i];
+					break;
+		}
+	}
+	str[n] = '\0';
+	return str;
+}
+

src/adc/message.h

@@ -0,0 +1,222 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_COMMAND_H
+#define HAVE_UHUB_COMMAND_H
+
+struct hub_user;
+
+struct adc_message
+{
+	fourcc_t cmd;
+	sid_t source;
+	sid_t target;
+	char* cache;
+	size_t length;
+	size_t capacity;
+	size_t priority;
+	size_t references;
+	struct linked_list*  feature_cast_include;
+	struct linked_list*  feature_cast_exclude;
+};
+
+enum msg_status_level
+{
+	status_level_info  = 0, /* Success/informative status message */
+	status_level_error = 1, /* Recoverable error */
+	status_level_fatal = 2, /* Fatal error (disconnect) */
+};
+
+/**
+ * Increase the reference counter for an ADC message struct.
+ * NOTE: Always use the returned value, and not the passed value, as
+ * it ensures we can actually copy the value if needed.
+ */
+extern struct adc_message* adc_msg_incref(struct adc_message* msg);
+
+/**
+ * Decrease the reference counter, and free the memory when apropriate.
+ */
+extern void adc_msg_free(struct adc_message* msg);
+
+/**
+ * Perform deep copy a command.
+ * NOTE: 'references' will be zero for the copied command.
+ * @return a copy of cmd or NULL if not able to allocate memory.
+ */
+extern struct adc_message* adc_msg_copy(const struct adc_message* cmd);
+
+/**
+ * This will parse 'string' and return it as a adc_message struct, or
+ * NULL if not able to allocate memory or 'string' does not contain
+ * a valid ADC command.
+ *
+ * The message is only considered valid if the user who sent it
+ * is the rightful origin of the message.
+ */
+extern struct adc_message* adc_msg_parse_verify(struct hub_user* u, const char* string, size_t length);
+
+/**
+ * This will parse 'string' and return it as a adc_message struct, or
+ * NULL if not able to allocate memory or 'string' does not contain
+ * a valid ADC command.
+ */
+extern struct adc_message* adc_msg_parse(const char* string, size_t length);
+
+/**
+ * This will construct a adc_message based on 'string'.
+ * Only to be used for server generated commands.
+ */
+extern struct adc_message* adc_msg_create(const char* string);
+
+/**
+ * Construct a message with the given 'fourcc' and allocate
+ * 'size' bytes for later use.
+ */
+extern struct adc_message* adc_msg_construct(fourcc_t fourcc, size_t size);
+
+/**
+ * Remove a named argument from the command.
+ *
+ * @arg prefix a 2 character argument prefix
+ * @return the number of named arguments removed.
+ */
+extern int adc_msg_remove_named_argument(struct adc_message* cmd, const char prefix[2]);
+
+/**
+ * Count the number of arguments matching the given 2 character prefix.
+ *
+ * @arg prefix a 2 character argument prefix
+ * @return the number of matching arguments
+ */
+extern int adc_msg_has_named_argument(struct adc_message* cmd, const char prefix[2]);
+
+/**
+ * Returns a named arguments based on the 2 character prefix.
+ * If multiple matching arguments exists, only the first one will be returned
+ * by this function.
+ *
+ * NOTE: Returned memory must be free'd with hub_free().
+ *
+ * @arg prefix a 2 character argument prefix
+ * @return the argument or NULL if OOM/not found.
+ */
+extern char* adc_msg_get_named_argument(struct adc_message* cmd, const char prefix[2]);
+
+/**
+ * Returns a offset of an argument based on the 2 character prefix.
+ * If multiple matching arguments exists, only the first one will be returned
+ * by this function.
+ *
+ * @arg prefix a 2 character argument prefix
+ * @return the offset or -1 if the argument is not found.
+ */
+extern int adc_msg_get_named_argument_index(struct adc_message* cmd, const char prefix[2]);
+
+/**
+ * @param cmd command to be checked
+ * @return 1 if the command does not have any arguments (parameters), 0 otherwise, -1 if cmd is invalid.
+ */
+extern int adc_msg_is_empty(struct adc_message* cmd);
+
+/**
+ * Returns the argument on the offset position in the command.
+ * If offset is invalid NULL is returned.
+ *
+ * NOTE: Returned memory must be free'd with hub_free().
+ *
+ * @return the argument or NULL if OOM/not found.
+ */
+extern char* adc_msg_get_argument(struct adc_message* cmd, int offset);
+
+/**
+ * Replace a named argument in the command.
+ * This will remove any matching arguments (multiple, or none),
+ * then add 'string' as an argument using the given prefix.
+ *
+ * @arg prefix a 2 character argument prefix
+ * @arg string must be escaped (see adc_msg_escape).
+ * @return  0 if successful, or -1 if an error occured.
+ */
+extern int adc_msg_replace_named_argument(struct adc_message* cmd, const char prefix[2], const char* string);
+
+/**
+ * Append an argument
+ *
+ * @arg string must be escaped (see adc_msg_escape).
+ * @return  0 if successful, or -1 if an error occured (out of memory).
+ */
+extern int adc_msg_add_argument(struct adc_message* cmd, const char* string);
+
+/**
+ * Append a named argument
+ *
+ * @arg prefix a 2 character argument prefix
+ * @arg string must be escaped (see adc_msg_escape).
+ * @return  0 if successful, or -1 if an error occured (out of memory).
+ */
+extern int adc_msg_add_named_argument(struct adc_message* cmd, const char prefix[2], const char* string);
+
+/**
+ * Append a string as a named argument.
+ * The string will automatcally be escaped, if you do not wish to escape th string use adc_msg_add_named_argument() instead.
+ *
+ * @arg prefix a 2 character argument prefix
+ * @arg string must NOT be escaped
+ * @return  0 if successful, or -1 if an error occured (out of memory).
+ */
+extern int adc_msg_add_named_argument_string(struct adc_message* cmd, const char prefix[2], const char* string);
+
+/**
+ * Append an integer as a named argument.
+ */
+extern int adc_msg_add_named_argument_int(struct adc_message* cmd, const char prefix[2], int integer);
+extern int adc_msg_add_named_argument_uint64(struct adc_message* cmd, const char prefix[2], uint64_t num);
+
+/**
+ * Convert a ADC command escaped string to a regular string.
+ * @return string or NULL if out of memory
+ */
+extern char* adc_msg_unescape(const char* string);
+
+/**
+ * Convert a string to a ADC command escaped string.
+ * @return adc command escaped string or NULL if out of memory.
+ */
+extern char* adc_msg_escape(const char* string);
+
+/**
+ * This will ensure a newline is at the end of the command.
+ */
+void adc_msg_terminate(struct adc_message* cmd);
+
+/**
+ * This will remove any newline from the end of the command
+ */
+void adc_msg_unterminate(struct adc_message* cmd);
+
+/**
+ * @return the offset for the first command argument in msg->cache.
+ * or -1 if the command is not understood.
+ * NOTE: for 'U' and 'C' commands (normally not seen by hubs), 
+ * this returns 4. Should be 4 + lengthOf(cid).
+ */
+int adc_msg_get_arg_offset(struct adc_message* msg);
+
+#endif /* HAVE_UHUB_COMMAND_H */

src/adc/sid.c

@@ -0,0 +1,154 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+const char* BASE32_ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+
+char* sid_to_string(sid_t sid_)
+{
+	static char t_sid[5];
+	sid_t sid = (sid_ & 0xFFFFF); /*  20 bits only */
+	sid_t A, B, C, D = 0;
+	D     = (sid % 32);
+	sid   = (sid - D) / 32;
+	C     = (sid % 32);
+	sid   = (sid - C) / 32;
+	B     = (sid % 32);
+	sid   = (sid - B) / 32;
+	A     = (sid % 32);
+	t_sid[0] = BASE32_ALPHABET[A];
+	t_sid[1] = BASE32_ALPHABET[B];
+	t_sid[2] = BASE32_ALPHABET[C];
+	t_sid[3] = BASE32_ALPHABET[D];
+	t_sid[4] = 0;
+	return t_sid;
+}
+
+
+sid_t string_to_sid(const char* sid)
+{
+	sid_t nsid = 0;
+	sid_t n, x;
+	sid_t factors[] = { 32768, 1024, 32, 1};
+	
+	if (!sid || strlen(sid) != 4) return 0;
+
+	for (n = 0; n < 4; n++) {
+		for (x = 0; x < strlen(BASE32_ALPHABET); x++)
+			if (sid[n] == BASE32_ALPHABET[x]) break;
+		if (x == 32) return 0;
+		nsid += x * factors[n];
+	}
+	return nsid;
+}
+
+/*
+ * Session IDs are heavily reused, since they are a fairly scarce
+ * resource. Only one (2^10)-1 exist, since it is a four byte base32-encoded
+ * value and 'AAAA' (0) is reserved for the hub.
+ *
+ * Initialize with sid_initialize(), which sets min and max to one, and count to 0.
+ *
+ * When allocating a session ID:
+ * - If 'count' is less than the pool size (max-min), then allocate within the pool
+ * - Increase the pool size (see below)
+ * - If unable to do that, hub is really full - don't let anyone in!
+ *
+ * When freeing a session ID:
+ * - If the session ID being freed is 'max', then decrease the pool size by one.
+ *
+ */
+
+struct sid_pool
+{
+	sid_t min;
+	sid_t max;
+	sid_t count;
+	struct hub_user** map;
+};
+
+
+struct sid_pool* sid_pool_create(sid_t max)
+{
+	struct sid_pool* pool = hub_malloc(sizeof(struct sid_pool));
+	if (!pool)
+		return 0;
+
+	pool->min = 1;
+	pool->max = max + 1;
+	pool->count = 0;
+	pool->map = hub_malloc_zero(sizeof(struct hub_user*) * pool->max);
+	if (!pool->map)
+	{
+		hub_free(pool);
+		return 0;
+	}
+	pool->map[0] = (struct hub_user*) pool; /* hack to reserve the first sid. */
+
+#ifdef DEBUG_SID
+	LOG_DUMP("SID_POOL:  max=%d", (int) pool->max);
+#endif
+	return pool;
+}
+
+void sid_pool_destroy(struct sid_pool* pool)
+{
+#ifdef DEBUG_SID
+	LOG_DUMP("SID_POOL:  destroying, current allocs=%d", (int) pool->count);
+#endif
+	hub_free(pool->map);
+	hub_free(pool);
+}
+
+sid_t sid_alloc(struct sid_pool* pool, struct hub_user* user)
+{
+	if (pool->count >= (pool->max - pool->min))
+	{
+#ifdef DEBUG_SID
+		LOG_DUMP("SID_POOL:  alloc, sid pool is full.");
+#endif
+		return 0;
+	}
+
+	sid_t n = (++pool->count);
+	for (; (pool->map[n % pool->max]); n++) ;
+
+#ifdef DEBUG_SID
+	LOG_DUMP("SID_ALLOC: %d, user=%p", (int) n, user);
+#endif
+	pool->map[n] = user;
+	return n;
+}
+
+void sid_free(struct sid_pool* pool, sid_t sid)
+{
+#ifdef DEBUG_SID
+	LOG_DUMP("SID_FREE:  %d", (int) sid);
+#endif
+	pool->map[sid] = 0;
+	pool->count--;
+}
+
+struct hub_user* sid_lookup(struct sid_pool* pool, sid_t sid)
+{
+	if (!sid || (sid >= pool->max))
+		return 0;
+	return pool->map[sid];
+}

src/adc/sid.h

@@ -0,0 +1,42 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_SID_H
+#define HAVE_UHUB_SID_H
+
+#define SID_MAX 1048576
+
+struct sid_pool;
+struct hub_user;
+
+extern const char* BASE32_ALPHABET;
+extern char* sid_to_string(sid_t sid_);
+extern sid_t string_to_sid(const char* sid);
+
+extern struct sid_pool* sid_pool_create(sid_t max);
+extern void sid_pool_destroy(struct sid_pool*);
+
+extern sid_t sid_alloc(struct sid_pool*, struct hub_user*);
+extern void sid_free(struct sid_pool*, sid_t);
+extern struct hub_user* sid_lookup(struct sid_pool*, sid_t);
+
+
+
+#endif /* HAVE_UHUB_SID_H */
+

src/core/auth.c

@@ -0,0 +1,487 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+#define ACL_ADD_USER(S, L, V) do { ret = check_cmd_user(S, V, L, line, line_count); if (ret != 0) return ret; } while(0)
+#define ACL_ADD_BOOL(S, L)    do { ret = check_cmd_bool(S,    L, line, line_count); if (ret != 0) return ret; } while(0)
+#define ACL_ADD_ADDR(S, L)    do { ret = check_cmd_addr(S,    L, line, line_count); if (ret != 0) return ret; } while(0)
+
+const char* get_user_credential_string(enum user_credentials cred)
+{
+	switch (cred)
+	{
+		case cred_none:         return "none";
+		case cred_bot:          return "bot";
+		case cred_guest:        return "guest";
+		case cred_user:         return "user";
+		case cred_operator:     return "operator";
+		case cred_super:        return "super";
+		case cred_admin:        return "admin";
+		case cred_link:         return "link";
+	}
+	
+	return "";
+};
+
+static int check_cmd_bool(const char* cmd, struct linked_list* list, char* line, int line_count)
+{
+	char* data;
+	char* data_extra;
+	
+	if (!strncmp(line, cmd, strlen(cmd)))
+	{
+		data = &line[strlen(cmd)];
+		data_extra = 0;
+		data[0] = '\0';
+		data++;
+		
+		data = strip_white_space(data);
+		if (!*data)
+		{
+			LOG_FATAL("ACL parse error on line %d", line_count);
+			return -1;
+		}
+		
+		list_append(list, hub_strdup(data));
+		LOG_DEBUG("ACL: Deny access for: '%s' (%s)", data, cmd);
+		return 1;
+	}
+	return 0;
+}
+
+static int check_cmd_user(const char* cmd, int status, struct linked_list* list, char* line, int line_count)
+{
+	char* data;
+	char* data_extra;
+	struct hub_user_access_info* info = 0;
+	
+	if (!strncmp(line, cmd, strlen(cmd)))
+	{
+		data = &line[strlen(cmd)];
+		data_extra = 0;
+		data[0] = '\0';
+		data++;
+		
+		data = strip_white_space(data);
+		if (!*data)
+		{
+			LOG_FATAL("ACL parse error on line %d", line_count);
+			return -1;
+		}
+		
+		info = hub_malloc_zero(sizeof(struct hub_user_access_info));
+		
+		if (!info)
+		{
+			LOG_ERROR("ACL parse error. Out of memory!");
+			return -1;
+		}
+		
+		if (strncmp(cmd, "user_", 5) == 0)
+		{
+			data_extra = strrchr(data, ':');
+			if (data_extra)
+			{
+				data_extra[0] = 0;
+				data_extra++;
+			}
+		}
+		
+		info->username = hub_strdup(data);
+		info->password = data_extra ? hub_strdup(data_extra) : 0;
+		info->status = status;
+		list_append(list, info);
+		LOG_DEBUG("ACL: Added user '%s' (%s)", info->username, get_user_credential_string(info->status));
+		return 1;
+	}
+	return 0;
+}
+
+
+static void add_ip_range(struct linked_list* list, struct ip_range* info)
+{
+	char buf1[INET6_ADDRSTRLEN+1];
+	char buf2[INET6_ADDRSTRLEN+1];
+
+	if (info->lo.af == AF_INET)
+	{
+		net_address_to_string(AF_INET, &info->lo.internal_ip_data.in.s_addr, buf1, INET6_ADDRSTRLEN);
+		net_address_to_string(AF_INET, &info->hi.internal_ip_data.in.s_addr, buf2, INET6_ADDRSTRLEN);
+	}
+	else if (info->lo.af == AF_INET6)
+	{
+		net_address_to_string(AF_INET6, &info->lo.internal_ip_data.in6, buf1, INET6_ADDRSTRLEN);
+		net_address_to_string(AF_INET6, &info->hi.internal_ip_data.in6, buf2, INET6_ADDRSTRLEN);
+	}
+	LOG_DEBUG("ACL: Added ip range: %s-%s", buf1, buf2);
+
+	list_append(list, info);
+}
+
+
+static int check_cmd_addr(const char* cmd, struct linked_list* list, char* line, int line_count)
+{
+	char* data;
+	struct ip_range* range = 0;
+
+	if (!strncmp(line, cmd, strlen(cmd)))
+	{
+		data = &line[strlen(cmd)];
+		data[0] = '\0';
+		data++;
+
+		data = strip_white_space(data);
+		if (!*data)
+		{
+			LOG_FATAL("ACL parse error on line %d", line_count);
+			return -1;
+		}
+
+		range = hub_malloc_zero(sizeof(struct ip_range));
+
+		if (!range)
+		{
+			LOG_ERROR("ACL parse error. Out of memory!");
+			return -1;
+		}
+
+		if (ip_convert_address_to_range(data, range))
+		{
+			add_ip_range(list, range);
+			return 1;
+		}
+		hub_free(range);
+	}
+	return 0;
+}
+
+
+
+static int acl_parse_line(char* line, int line_count, void* ptr_data)
+{
+	struct acl_handle* handle = (struct acl_handle*) ptr_data;
+	int ret;
+
+	strip_off_ini_line_comments(line, line_count);
+
+	line = strip_white_space(line);
+	if (!*line)
+		return 0;
+
+	LOG_DEBUG("acl_parse_line: '%s'", line);
+
+	ACL_ADD_USER("bot",        handle->users, cred_bot);
+	ACL_ADD_USER("user_admin", handle->users, cred_admin);
+	ACL_ADD_USER("user_super", handle->users, cred_super);
+	ACL_ADD_USER("user_op",    handle->users, cred_operator);
+	ACL_ADD_USER("user_reg",   handle->users, cred_user);
+	ACL_ADD_USER("link",       handle->users, cred_link);
+	ACL_ADD_BOOL("deny_nick",  handle->users_denied);
+	ACL_ADD_BOOL("ban_nick",   handle->users_banned);
+	ACL_ADD_BOOL("ban_cid",    handle->cids);
+	ACL_ADD_ADDR("deny_ip",    handle->networks);
+	ACL_ADD_ADDR("nat_ip",     handle->nat_override);
+
+	LOG_ERROR("Unknown ACL command on line %d: '%s'", line_count, line);
+	return -1;
+}
+
+
+int acl_initialize(struct hub_config* config, struct acl_handle* handle)
+{
+	int ret;
+	memset(handle, 0, sizeof(struct acl_handle));
+	
+	handle->users        = list_create();
+	handle->users_denied = list_create();
+	handle->users_banned = list_create();
+	handle->cids         = list_create();
+	handle->networks     = list_create();
+	handle->nat_override = list_create();
+	
+	if (!handle->users || !handle->cids || !handle->networks || !handle->users_denied || !handle->users_banned || !handle->nat_override)
+	{
+		LOG_FATAL("acl_initialize: Out of memory");
+		
+		list_destroy(handle->users);
+		list_destroy(handle->users_denied);
+		list_destroy(handle->users_banned);
+		list_destroy(handle->cids);
+		list_destroy(handle->networks);
+		list_destroy(handle->nat_override);
+		return -1;
+	}
+	
+	if (config)
+	{
+		if (!*config->file_acl) return 0;
+		
+		ret = file_read_lines(config->file_acl, handle, &acl_parse_line);
+		if (ret == -1)
+			return -1;
+	}
+	return 0;
+}
+
+
+static void acl_free_access_info(void* ptr)
+{
+	struct hub_user_access_info* info = (struct hub_user_access_info*) ptr;
+	if (info)
+	{
+		hub_free(info->username);
+		hub_free(info->password);
+		hub_free(info);
+	}
+}
+
+
+static void acl_free_ip_info(void* ptr)
+{
+	struct access_info* info = (struct access_info*) ptr;
+	if (info)
+	{
+		hub_free(info);
+	}
+}
+
+int acl_shutdown(struct acl_handle* handle)
+{
+	if (handle->users)
+	{
+		list_clear(handle->users, &acl_free_access_info);
+		list_destroy(handle->users);
+	}
+	
+	if (handle->users_denied)
+	{
+		list_clear(handle->users_denied, &hub_free);
+		list_destroy(handle->users_denied);
+	}
+	
+	if (handle->users_banned)
+	{
+		list_clear(handle->users_banned, &hub_free);
+		list_destroy(handle->users_banned);
+	}
+	
+	
+	if (handle->cids)
+	{
+		list_clear(handle->cids, &hub_free);
+		list_destroy(handle->cids);
+	}
+	
+	if (handle->networks)
+	{
+		list_clear(handle->networks, &acl_free_ip_info);
+		list_destroy(handle->networks);
+	}
+	
+	if (handle->nat_override)
+	{
+		list_clear(handle->nat_override, &acl_free_ip_info);
+		list_destroy(handle->nat_override);
+	}
+	
+	
+	memset(handle, 0, sizeof(struct acl_handle));
+	return 0;
+}
+
+
+struct hub_user_access_info* acl_get_access_info(struct acl_handle* handle, const char* name)
+{
+	struct hub_user_access_info* info = (struct hub_user_access_info*) list_get_first(handle->users);
+	while (info)
+	{
+		if (strcasecmp(info->username, name) == 0)
+		{
+			return info;
+		}
+		info = (struct hub_user_access_info*) list_get_next(handle->users);
+	}
+	return NULL;
+}
+
+#define STR_LIST_CONTAINS(LIST, STR) \
+		str = (char*) list_get_first(LIST); \
+		while (str) \
+		{ \
+			if (strcasecmp(str, STR) == 0) \
+				return 1; \
+			str = (char*) list_get_next(LIST); \
+		} \
+		return 0
+
+int acl_is_cid_banned(struct acl_handle* handle, const char* data)
+{
+	char* str;
+	if (!handle) return 0;
+	STR_LIST_CONTAINS(handle->cids, data);
+}
+
+int acl_is_user_banned(struct acl_handle* handle, const char* data)
+{
+	char* str;
+	if (!handle) return 0;
+	STR_LIST_CONTAINS(handle->users_banned, data);
+}
+
+int acl_is_user_denied(struct acl_handle* handle, const char* data)
+{
+	char* str;
+	if (!handle) return 0;
+	STR_LIST_CONTAINS(handle->users_denied, data);
+}
+
+int acl_user_ban_nick(struct acl_handle* handle, const char* nick)
+{
+	char* data = hub_strdup(nick);
+	if (!data)
+	{
+		LOG_ERROR("ACL error: Out of memory!");
+		return -1;
+	}
+
+	list_append(handle->users_banned, data);
+	return 0;
+}
+
+int acl_user_ban_cid(struct acl_handle* handle, const char* cid)
+{
+	char* data = hub_strdup(cid);
+	if (!data)
+	{
+		LOG_ERROR("ACL error: Out of memory!");
+		return -1;
+	}
+
+	list_append(handle->cids, data);
+	return 0;
+}
+
+int acl_user_unban_nick(struct acl_handle* handle, const char* nick)
+{
+	return -1;
+}
+
+int acl_user_unban_cid(struct acl_handle* handle, const char* cid)
+{
+	return -1;
+}
+
+
+int acl_is_ip_banned(struct acl_handle* handle, const char* ip_address)
+{
+	struct ip_addr_encap raw;
+	struct ip_range* info = (struct ip_range*) list_get_first(handle->networks);
+	ip_convert_to_binary(ip_address, &raw);
+	
+	while (info)
+	{
+		if (ip_in_range(&raw, info))
+		{
+			return 1;
+		}
+		info = (struct ip_range*) list_get_next(handle->networks);
+	}
+	return 0;
+}
+
+int acl_is_ip_nat_override(struct acl_handle* handle, const char* ip_address)
+{
+	struct ip_addr_encap raw;
+	struct ip_range* info = (struct ip_range*) list_get_first(handle->nat_override);
+	ip_convert_to_binary(ip_address, &raw);
+	
+	while (info)
+	{
+		if (ip_in_range(&raw, info))
+		{
+			return 1;
+		}
+		info = (struct ip_range*) list_get_next(handle->nat_override);
+	}
+	return 0;
+}
+
+
+/*
+ * This will generate the same challenge to the same user, always.
+ * The challenge is made up of the time of the user connected
+ * seconds since the unix epoch (modulus 1 million)
+ * and the SID of the user (0-1 million).
+ */
+const char* acl_password_generate_challenge(struct acl_handle* acl, struct hub_user* user)
+{
+	char buf[64];
+	uint64_t tiger_res[3];
+	static char tiger_buf[MAX_CID_LEN+1];
+
+	// FIXME: Generate a better nonce scheme.
+	snprintf(buf, 64, "%p%d%d", user, (int) user->id.sid, (int) net_con_get_sd(user->connection));
+
+	tiger((uint64_t*) buf, strlen(buf), (uint64_t*) tiger_res);
+	base32_encode((unsigned char*) tiger_res, TIGERSIZE, tiger_buf);
+	tiger_buf[MAX_CID_LEN] = 0;
+	return (const char*) tiger_buf;
+}
+
+
+int acl_password_verify(struct acl_handle* acl, struct hub_user* user, const char* password)
+{
+	char buf[1024];
+	struct hub_user_access_info* access;
+	const char* challenge;
+	char raw_challenge[64];
+	char password_calc[64];
+	uint64_t tiger_res[3];
+	
+	if (!password || !user || strlen(password) != MAX_CID_LEN)
+		return 0;
+
+	access = acl_get_access_info(acl, user->id.nick);
+	if (!access || !access->password)
+		return 0;
+
+	if (TIGERSIZE+strlen(access->password) >= 1024)
+		return 0;
+
+	challenge = acl_password_generate_challenge(acl, user);
+
+	base32_decode(challenge, (unsigned char*) raw_challenge, MAX_CID_LEN);
+
+	memcpy(&buf[0], (char*) access->password, strlen(access->password));
+	memcpy(&buf[strlen(access->password)], raw_challenge, TIGERSIZE);
+	
+	tiger((uint64_t*) buf, TIGERSIZE+strlen(access->password), (uint64_t*) tiger_res);
+	base32_encode((unsigned char*) tiger_res, TIGERSIZE, password_calc);
+	password_calc[MAX_CID_LEN] = 0;
+
+	if (strcasecmp(password, password_calc) == 0)
+	{
+		return 1;
+	}
+	return 0;
+}
+
+
+

src/core/auth.h

@@ -0,0 +1,85 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_ACL_H
+#define HAVE_UHUB_ACL_H
+
+struct hub_config;
+struct hub_user;
+struct ip_addr_encap;
+
+enum user_credentials
+{
+	cred_none,                 /**<<< "User has no credentials (not yet logged in)" */
+ 	cred_bot,                  /**<<< "User is a robot" */
+	cred_guest,                /**<<< "User is a guest (unregistered user)" */
+ 	cred_user,                 /**<<< "User is identified as a registered user" */
+	cred_operator,             /**<<< "User is identified as a hub operator" */
+	cred_super,                /**<<< "User is a super user" (not used) */
+	cred_admin,                /**<<< "User is identified as a hub administrator/owner" */
+ 	cred_link,                 /**<<< "User is a link (not used currently)" */
+};
+
+const char* get_user_credential_string(enum user_credentials cred);
+
+struct hub_user_access_info
+{
+	char* username;          /* name of user, cid or IP range */
+	char* password;          /* password */
+	enum user_credentials status;
+};
+
+struct acl_handle
+{
+	struct linked_list* users;          /* Known users. See enum user_status */
+	struct linked_list* cids;           /* Known CIDs */
+	struct linked_list* networks;       /* IP ranges, used for banning */
+	struct linked_list* nat_override;   /* IPs inside these ranges can provide their false IP. Use with care! */
+	struct linked_list* users_banned;   /* Users permanently banned */
+	struct linked_list* users_denied;   /* bad nickname */
+};
+
+
+extern int acl_initialize(struct hub_config* config, struct acl_handle* handle);
+extern int acl_shutdown(struct acl_handle* handle);
+
+extern struct hub_user_access_info* acl_get_access_info(struct acl_handle* handle, const char* name);
+extern int acl_is_cid_banned(struct acl_handle* handle, const char* cid);
+extern int acl_is_ip_banned(struct acl_handle* handle, const char* ip_address);
+extern int acl_is_ip_nat_override(struct acl_handle* handle, const char* ip_address);
+
+extern int acl_is_user_banned(struct acl_handle* handle, const char* name);
+extern int acl_is_user_denied(struct acl_handle* handle, const char* name);
+
+extern int acl_user_ban_nick(struct acl_handle* handle, const char* nick);
+extern int acl_user_ban_cid(struct acl_handle* handle, const char* cid);
+extern int acl_user_unban_nick(struct acl_handle* handle, const char* nick);
+extern int acl_user_unban_cid(struct acl_handle* handle, const char* cid);
+
+extern const char* acl_password_generate_challenge(struct acl_handle* acl, struct hub_user* user);
+
+/**
+ * Verify a password.
+ *
+ * @param password the hashed password (based on the nonce).
+ * @return 1 if the password matches, or 0 if the password is incorrect.
+ */
+extern int acl_password_verify(struct acl_handle* acl, struct hub_user* user, const char* password);
+
+#endif /* HAVE_UHUB_ACL_H */

src/core/commands.c

@@ -0,0 +1,664 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+#ifdef DEBUG
+#define CRASH_DEBUG
+#endif
+
+#define MAX_HELP_MSG 1024
+
+struct hub_command
+{
+	const char* message;
+	char* prefix;
+	size_t prefix_len;
+	struct linked_list* args;
+};
+
+typedef int (*command_handler)(struct hub_info* hub, struct hub_user* user, struct hub_command*);
+
+struct commands_handler
+{
+	const char* prefix;
+	size_t length;
+	const char* args;
+	enum user_credentials cred;
+	command_handler handler;
+	const char* description;
+};
+
+static struct commands_handler command_handlers[];
+
+static void command_destroy(struct hub_command* cmd)
+{
+	if (!cmd) return;
+	hub_free(cmd->prefix);
+
+	if (cmd->args)
+	{
+		list_clear(cmd->args, &hub_free);
+		list_destroy(cmd->args);
+	}
+
+	hub_free(cmd);
+}
+
+static struct hub_command* command_create(const char* message)
+{
+	char* prefix;
+	int n;
+	struct hub_command* cmd = hub_malloc_zero(sizeof(struct hub_command));
+
+	if (!cmd) return 0;
+
+	cmd->message = message;
+	cmd->args = list_create();
+
+	n = split_string(message, "\\s", cmd->args, 0);
+	if (n <= 0)
+	{
+		command_destroy(cmd);
+		return 0;
+	}
+
+	prefix = list_get_first(cmd->args);
+	if (prefix && prefix[0] && prefix[1])
+	{
+		cmd->prefix = hub_strdup(&prefix[1]);
+		cmd->prefix_len = strlen(cmd->prefix);
+	}
+	else
+	{
+		command_destroy(cmd);
+		return 0;
+	}
+	list_remove(cmd->args, prefix);
+	hub_free(prefix);
+	return cmd;
+}
+
+static void send_message(struct hub_info* hub, struct hub_user* user, const char* message)
+{
+	char* buffer = adc_msg_escape(message);
+	struct adc_message* command = adc_msg_construct(ADC_CMD_IMSG, strlen(buffer) + 6);
+	adc_msg_add_argument(command, buffer);
+	route_to_user(hub, user, command);
+	adc_msg_free(command);
+	hub_free(buffer);
+}
+
+static int command_access_denied(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char temp[128];
+	snprintf(temp, 128, "*** %s: Access denied.", cmd->prefix);
+	send_message(hub, user, temp);
+	return 0;
+}
+
+static int command_not_found(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char temp[128];
+	snprintf(temp, 128, "*** %s: Command not found", cmd->prefix);
+	send_message(hub, user, temp);
+	return 0;
+}
+
+static int command_status_user_not_found(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd, const char* nick)
+{
+	char temp[128];
+	snprintf(temp, 128, "*** %s: No user \"%s\"", cmd->prefix, nick);
+	send_message(hub, user, temp);
+	return 0;
+}
+
+const char* command_get_syntax(struct commands_handler* handler)
+{
+	static char args[128];
+	size_t n = 0;
+	args[0] = 0;
+	if (handler->args)
+	{
+		for (n = 0; n < strlen(handler->args); n++)
+		{
+			if (n > 0) strcat(args, " ");
+			switch (handler->args[n])
+			{
+				case 'n': strcat(args, "<nick>"); break;
+				case 'c': strcat(args, "<cid>");  break;
+				case 'a': strcat(args, "<addr>"); break;
+				case 'm': strcat(args, "<message>"); break;
+			}
+		}
+	}
+	return args;
+}
+
+static int command_arg_mismatch(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd, struct commands_handler* handler)
+{
+	char temp[256];
+	const char* args = command_get_syntax(handler);
+	if (args) snprintf(temp, 256, "*** %s: Use: !%s %s", cmd->prefix, cmd->prefix, args);
+	else      snprintf(temp, 256, "*** %s: Use: !%s", cmd->prefix, cmd->prefix);
+	send_message(hub, user, temp);
+	return 0;
+}
+
+static int command_status(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd, const char* message)
+{
+	char temp[1024];
+	snprintf(temp, 1024, "*** %s: %s", cmd->prefix, message);
+	send_message(hub, user, temp);
+	return 0;
+}
+
+static int command_stats(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char temp[128];
+	snprintf(temp, 128, PRINTF_SIZE_T " users, peak: " PRINTF_SIZE_T ". Network (up/down): %d/%d KB/s, peak: %d/%d KB/s",
+	hub->users->count,
+	hub->users->count_peak,
+	(int) hub->stats.net_tx / 1024,
+	(int) hub->stats.net_rx / 1024,
+	(int) hub->stats.net_tx_peak / 1024,
+	(int) hub->stats.net_rx_peak / 1024);
+	return command_status(hub, user, cmd, temp);
+}
+
+static int command_help(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	size_t n;
+	char msg[MAX_HELP_MSG];
+	msg[0] = 0;
+	strcat(msg, "Available commands:\n");
+
+	for (n = 0; command_handlers[n].prefix; n++)
+	{
+		if (command_handlers[n].cred <= user->credentials)
+		{
+			strcat(msg, "!");
+			strcat(msg, command_handlers[n].prefix);
+			strcat(msg, " - ");
+			strcat(msg, command_handlers[n].description);
+			strcat(msg, "\n");
+		}
+	}
+	return command_status(hub, user, cmd, msg);
+}
+
+static int command_uptime(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char tmp[128];
+	size_t d;
+	size_t h;
+	size_t m;
+	size_t D = (size_t) difftime(time(0), hub->tm_started);
+
+	d = D / (24 * 3600);
+	D = D % (24 * 3600);
+	h = D / 3600;
+	D = D % 3600;
+	m = D / 60;
+
+	tmp[0] = 0;
+	if (d)
+	{
+		strcat(tmp, uhub_itoa((int) d));
+		strcat(tmp, " day");
+		if (d != 1) strcat(tmp, "s");
+		strcat(tmp, ", ");
+	}
+
+	if (h < 10) strcat(tmp, "0");
+	strcat(tmp, uhub_itoa((int) h));
+	strcat(tmp, ":");
+	if (m < 10) strcat(tmp, "0");
+	strcat(tmp, uhub_itoa((int) m));
+
+	return command_status(hub, user, cmd, tmp);
+}
+
+static int command_kick(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char* nick = list_get_first(cmd->args);
+	struct hub_user* target;
+	if (!nick)
+		return -1; // FIXME: bad syntax.
+
+	target = uman_get_user_by_nick(hub, nick);
+	
+	if (!target)
+		return command_status_user_not_found(hub, user, cmd, nick);
+	
+	if (target == user)
+		return command_status(hub, user, cmd, "Cannot kick yourself");
+	
+	hub_disconnect_user(hub, target, quit_kicked);
+	return command_status(hub, user, cmd, nick);
+}
+
+static int command_ban(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char* nick = list_get_first(cmd->args);
+	struct hub_user* target;
+	if (!nick)
+		return -1; // FIXME: bad syntax.
+
+	target = uman_get_user_by_nick(hub, nick);
+
+	if (!target)
+		return command_status_user_not_found(hub, user, cmd, nick);
+
+	if (target == user)
+		return command_status(hub, user, cmd, "Cannot kick/ban yourself");
+
+	hub_disconnect_user(hub, target, quit_kicked);
+	acl_user_ban_nick(hub->acl, target->id.nick);
+	acl_user_ban_cid(hub->acl, target->id.cid);
+
+	return command_status(hub, user, cmd, nick);
+}
+
+static int command_unban(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	return command_status(hub, user, cmd, "Not implemented");
+}
+
+static int command_mute(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char* nick = list_get_first(cmd->args);
+	struct hub_user* target;
+	if (!nick)
+		return -1; // FIXME: bad syntax.
+
+	target = uman_get_user_by_nick(hub, nick);
+
+	if (!target)
+		return command_status_user_not_found(hub, user, cmd, nick);
+
+	if (strlen(cmd->prefix) == 4)
+	{
+		user_flag_set(target, flag_muted);
+	}
+	else
+	{
+		user_flag_unset(target, flag_muted);
+	}
+	return command_status(hub, user, cmd, nick);
+}
+
+static int command_reload(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	hub->status = hub_status_restart;
+	return command_status(hub, user, cmd, "Reloading configuration...");
+}
+
+static int command_shutdown(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	hub->status = hub_status_shutdown;
+	return command_status(hub, user, cmd, "Hub shutting down...");
+}
+
+static int command_version(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	const char* tmp;
+	if (hub->config->show_banner_sys_info)
+		tmp = "Powered by " PRODUCT_STRING " on " OPSYS "/" CPUINFO;
+	else
+		tmp = "Powered by " PRODUCT_STRING;
+	return command_status(hub, user, cmd, tmp);
+}
+
+static int command_myip(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char tmp[128];
+	snprintf(tmp, 128, "Your address is \"%s\"", user_get_address(user));
+	return command_status(hub, user, cmd, tmp);
+}
+
+static int command_getip(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char tmp[128];
+	char* nick = list_get_first(cmd->args);
+	struct hub_user* target;
+
+	if (!nick)
+		return -1; // FIXME: bad syntax/OOM
+
+	target = uman_get_user_by_nick(hub, nick);
+
+	if (!target)
+		return command_status_user_not_found(hub, user, cmd, nick);
+
+	snprintf(tmp, 128, "%s has address \"%s\"", nick, user_get_address(target));
+	return command_status(hub, user, cmd, tmp);
+}
+
+static int command_whoip(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char* address = list_get_first(cmd->args);
+	struct ip_range range;
+	struct linked_list* users;
+	struct hub_user* u;
+	int ret = 0;
+	char tmp[128];
+	char* buffer;
+
+	if (!address)
+		return -1; // FIXME: bad syntax.
+
+	ret = ip_convert_address_to_range(address, &range);
+	if (!ret)
+		return command_status(hub, user, cmd, "Invalid IP address/range/mask");
+
+	users = (struct linked_list*) list_create();
+	if (!users)
+		return -1; // FIXME: OOM
+
+	ret = uman_get_user_by_addr(hub, users, &range);
+
+	if (!ret)
+	{
+		list_destroy(users);
+		return command_status(hub, user, cmd, "No users found.");
+	}
+
+	snprintf(tmp, 128, "*** %s: Found %d match%s:", cmd->prefix, ret, ((ret != 1) ? "es" : ""));
+
+	buffer = hub_malloc(((MAX_NICK_LEN + INET6_ADDRSTRLEN + 5) * ret) + strlen(tmp) + 3);
+	if (!buffer)
+	{
+		list_destroy(users);
+		return -1; // FIXME: OOM
+	}
+
+	buffer[0] = 0;
+	strcat(buffer, tmp);
+	strcat(buffer, "\n");
+
+	u = (struct hub_user*) list_get_first(users);
+	while (u)
+	{
+		strcat(buffer, u->id.nick);
+		strcat(buffer, " (");
+		strcat(buffer, user_get_address(u));
+		strcat(buffer, ")\n");
+		u = (struct hub_user*) list_get_next(users);
+	}
+	strcat(buffer, "\n");
+
+	send_message(hub, user, buffer);
+	hub_free(buffer);
+	list_destroy(users);
+	return 0;
+}
+
+static int command_broadcast(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	size_t offset = 12;
+#if USE_OLD_BROADCAST_STYLE
+	struct adc_message* command = adc_msg_construct(ADC_CMD_IMSG, strlen((cmd->message + offset)) + 6);
+	adc_msg_add_argument(command, (cmd->message + offset));
+	route_to_all(hub, command);
+	adc_msg_free(command);
+	return 0;
+#else
+	size_t message_len = strlen(cmd->message + offset);
+	struct adc_message* command = 0;
+	char pm_flag[7] = "PM";
+	char from_sid[5];
+	char buffer[128];
+	size_t recipients = 0;
+
+	memcpy(from_sid, sid_to_string(user->id.sid), sizeof(from_sid));
+	memcpy(pm_flag + 2, from_sid, sizeof(from_sid));
+
+	struct hub_user* target = (struct hub_user*) list_get_first(hub->users->list);
+	while (target)
+	{
+		if (target != user)
+		{
+			recipients++;
+			command = adc_msg_construct(ADC_CMD_DMSG, message_len + 23);
+			if (!command)
+				break;
+
+			adc_msg_add_argument(command, from_sid);
+			adc_msg_add_argument(command, sid_to_string(target->id.sid));
+			adc_msg_add_argument(command, (cmd->message + offset));
+			adc_msg_add_argument(command, pm_flag);
+
+			route_to_user(hub, target, command);
+			adc_msg_free(command);
+		}
+		target = (struct hub_user*) list_get_next(hub->users->list);
+	}
+
+	snprintf(buffer, sizeof(buffer), "*** %s: Delivered to " PRINTF_SIZE_T " user%s", cmd->prefix, recipients, (recipients != 1 ? "s" : ""));
+	send_message(hub, user, buffer);
+	return 0;
+#endif
+}
+
+static int command_history(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	char* buffer;
+	struct linked_list* messages = hub->chat_history;
+	char* message = 0;
+	int ret = (int) list_size(messages);
+	size_t bufsize;
+	char tmp[128];
+
+	if (!ret)
+	{
+		return command_status(hub, user, cmd, "No messages.");
+	}
+
+	snprintf(tmp, 128, "*** %s: Found %d message%s:", cmd->prefix, ret, ((ret != 1) ? "s" : ""));
+	bufsize = strlen(tmp);
+	message = (char*) list_get_first(messages);
+	while (message)
+	{
+		bufsize += strlen(message);
+		message = (char*) list_get_next(messages);
+	}
+
+	buffer = hub_malloc(bufsize+4);
+	if (!buffer)
+	{
+		return command_status(hub, user, cmd, "Not enough memory.");
+	}
+
+	buffer[0] = 0;
+	strcat(buffer, tmp);
+	strcat(buffer, "\n");
+
+	message = (char*) list_get_first(messages);
+	while (message)
+	{
+		strcat(buffer, message);
+		message = (char*) list_get_next(messages);
+	}
+	strcat(buffer, "\n");
+
+	send_message(hub, user, buffer);
+	hub_free(buffer);
+	return 0;
+}
+
+static int command_log(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	struct linked_list* messages = hub->logout_info;
+	struct hub_logout_info* log;
+	char tmp[1024];
+	char* search = 0;
+	size_t search_len = 0;
+	size_t search_hits = 0;
+
+	if (!list_size(messages))
+	{
+		return command_status(hub, user, cmd, "No entries logged.");
+	}
+
+	search = list_get_first(cmd->args);
+	if (search)
+	{
+		search_len = strlen(search);
+	}
+
+	if (search_len)
+	{
+		sprintf(tmp, "Logged entries: " PRINTF_SIZE_T ", searching for \"%s\"", list_size(messages), search);
+	}
+	else
+	{
+		sprintf(tmp, "Logged entries: " PRINTF_SIZE_T, list_size(messages));
+	}
+	command_status(hub, user, cmd, tmp);
+
+	log = (struct hub_logout_info*) list_get_first(messages);
+	while (log)
+	{
+		const char* address = ip_convert_to_string(&log->addr);
+		int show = 0;
+
+		if (search_len)
+		{
+			if (memmem(log->cid, MAX_CID_LEN, search, search_len) || memmem(log->nick, MAX_NICK_LEN, search, search_len) || memmem(address, strlen(address), search, search_len))
+			{
+				search_hits++;
+				show = 1;
+			}
+		}
+		else
+		{
+			show = 1;
+		}
+
+		if (show)
+		{
+			sprintf(tmp, "* %s %s, %s [%s] - %s", get_timestamp(log->time), log->cid, log->nick, ip_convert_to_string(&log->addr), user_get_quit_reason_string(log->reason));
+			send_message(hub, user, tmp);
+		}
+		log = (struct hub_logout_info*) list_get_next(messages);
+	}
+
+	if (search_len)
+	{
+		sprintf(tmp, PRINTF_SIZE_T " entries shown.", search_hits);
+		command_status(hub, user, cmd, tmp);
+	}
+
+	return 0;
+}
+
+static int command_rules(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	if (!hub_send_rules(hub, user))
+		return command_status(hub, user, cmd, "no rules defined.");
+	return 0;
+}
+
+static int command_motd(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	if (!hub_send_motd(hub, user))
+		return command_status(hub, user, cmd, "no motd defined.");
+	return 0;
+}
+
+#ifdef CRASH_DEBUG
+static int command_crash(struct hub_info* hub, struct hub_user* user, struct hub_command* cmd)
+{
+	void (*crash)(void) = NULL;
+	crash();
+	return 0;
+}
+#endif
+
+int command_dipatcher(struct hub_info* hub, struct hub_user* user, const char* message)
+{
+	size_t n = 0;
+	int rc;
+
+	/* Parse and validate the command */
+	struct hub_command* cmd = command_create(message);
+	if (!cmd) return 0;
+
+	for (n = 0; command_handlers[n].prefix; n++)
+	{
+		struct commands_handler* handler = &command_handlers[n];
+		if (cmd->prefix_len != handler->length)
+			continue;
+
+		if (!strncmp(cmd->prefix, handler->prefix, handler->length))
+		{
+			if (handler->cred <= user->credentials)
+			{
+				if (!handler->args || (handler->args && list_size(cmd->args) >= strlen(handler->args)))
+				{
+					rc = handler->handler(hub, user, cmd);
+				}
+				else
+				{
+					rc = command_arg_mismatch(hub, user, cmd, handler);
+				}
+				command_destroy(cmd);
+				return rc;
+			}
+			else
+			{
+				rc = command_access_denied(hub, user, cmd);
+				command_destroy(cmd);
+				return rc;
+			}
+		}
+	}
+
+	command_not_found(hub, user, cmd);
+	command_destroy(cmd);
+	return 0;
+}
+
+static struct commands_handler command_handlers[] = {
+	{ "ban",        3, "n", cred_operator,  command_ban,      "Ban a user"                   },
+	{ "broadcast",  9, "m", cred_operator,  command_broadcast,"Send a message to all users"  },
+#ifdef CRASH_DEBUG
+	{ "crash",      5, 0,   cred_admin,     command_crash,    "Crash the hub (DEBUG)."       },
+#endif
+	{ "getip",      5, "n", cred_operator,  command_getip,    "Show IP address for a user"   },
+	{ "help",       4, 0,   cred_guest,     command_help,     "Show this help message."      },
+	{ "history",    7, 0,   cred_guest,     command_history,  "Show the last chat messages." },
+	{ "kick",       4, "n", cred_operator,  command_kick,     "Kick a user"                  },
+	{ "log",        3, 0,   cred_operator,  command_log,      "Display log"                  },
+	{ "motd",       4, 0,   cred_guest,     command_motd,     "Show the message of the day"  },
+	{ "mute",       4, "n", cred_operator,  command_mute,     "Mute user"                    },
+	{ "myip",       4, 0,   cred_guest,     command_myip,     "Show your own IP."            },
+	{ "reload",     6, 0,   cred_admin,     command_reload,   "Reload configuration files."  },
+	{ "rules",      5, 0,   cred_guest,     command_rules,    "Show the hub rules"           },
+	{ "shutdown",   8, 0,   cred_admin,     command_shutdown, "Shutdown hub."                },
+	{ "stats",      5, 0,   cred_super,     command_stats,    "Show hub statistics."         },
+	{ "unban",      5, "n", cred_operator,  command_unban,    "Lift ban on a user"           },
+	{ "unmute",     6, "n", cred_operator,  command_mute,     "Unmute user"                  },
+	{ "uptime",     6, 0,   cred_guest,     command_uptime,   "Display hub uptime info."     },
+	{ "version",    7, 0,   cred_guest,     command_version,  "Show hub version info."       },
+	{ "whoip",      5, "a", cred_operator,  command_whoip,    "Show users matching IP range" },
+	{ 0,            0, 0,   cred_none,      command_help,     ""                             }
+};
+

src/core/commands.h

@@ -0,0 +1,22 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+extern int command_dipatcher(struct hub_info* hub, struct hub_user* user, const char* message);

src/core/config.c

@@ -0,0 +1,150 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#include "uhub.h"
+
+
+#ifndef INT_MAX
+#define INT_MAX 0x7fffffff
+#endif
+
+#ifndef INT_MIN
+#define INT_MIN (-0x7fffffff - 1)
+#endif
+
+static int apply_boolean(const char* key, const char* data, int* target)
+{
+	if      (strlen(data) == 1 && (data[0] == '1')) *target = 1;
+	else if (strlen(data) == 1 && (data[0] == '0')) *target = 0;
+	else if (strncasecmp(data, "true",  4) == 0) *target = 1;
+	else if (strncasecmp(data, "false", 5) == 0) *target = 0;
+	else if (strncasecmp(data, "yes",   3) == 0) *target = 1;
+	else if (strncasecmp(data, "no",    2) == 0) *target = 0;
+	else if (strncasecmp(data, "on",    2) == 0) *target = 1;
+	else if (strncasecmp(data, "off",   3) == 0) *target = 0;
+	else
+		return 0;
+	return 1;
+}
+
+static int apply_string(const char* key, const char* data, char** target, char* regexp)
+{
+	(void) regexp;
+	// FIXME: Add regexp checks for correct data
+
+	if (*target)
+		hub_free(*target);
+
+	*target = hub_strdup(data);
+	return 1;
+}
+
+static int apply_integer(const char* key, const char* data, int* target, int* min, int* max)
+{
+	char* endptr;
+	int val;
+	errno = 0;
+	val = strtol(data, &endptr, 10);
+
+	if (((errno == ERANGE && (val == INT_MAX || val == INT_MIN)) || (errno != 0 && val == 0)) || endptr == data)
+			return 0;
+
+	if (min && val < *min)
+		return 0;
+
+	if (max && val > *max)
+		return 0;
+
+	*target = val;
+	return 1;
+}
+
+#include "gen_config.c"
+
+static int config_parse_line(char* line, int line_count, void* ptr_data)
+{
+	char* pos;
+	char* key;
+	char* data;
+	struct hub_config* config = (struct hub_config*) ptr_data;
+
+	strip_off_ini_line_comments(line, line_count);
+	
+	if (!*line) return 0;
+
+	LOG_DUMP("config_parse_line(): '%s'", line);
+
+	if (!is_valid_utf8(line))
+	{
+		LOG_WARN("Invalid utf-8 characters on line %d", line_count);
+	}
+
+	if ((pos = strchr(line, '=')) != NULL)
+	{
+		pos[0] = 0;
+	}
+	else
+	{
+		return 0;
+	}
+
+	key = line;
+	data = &pos[1];
+
+	key = strip_white_space(key);
+	data = strip_white_space(data);
+	data = strip_off_quotes(data);
+
+	if (!*key || !*data)
+	{
+		LOG_FATAL("Configuration parse error on line %d", line_count);
+		return -1;
+	}
+
+	LOG_DUMP("config_parse_line: '%s' => '%s'", key, data);
+
+	return apply_config(config, key, data, line_count);
+}
+
+
+int read_config(const char* file, struct hub_config* config, int allow_missing)
+{
+	int ret;
+
+	memset(config, 0, sizeof(struct hub_config));
+	config_defaults(config);
+
+	ret = file_read_lines(file, config, &config_parse_line);
+	if (ret < 0)
+	{
+		if (allow_missing && ret == -2)
+		{
+			LOG_DUMP("Using default configuration.");
+		}
+		else
+		{
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+

src/core/config.h

@@ -0,0 +1,55 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_CONFIG_H
+#define HAVE_UHUB_CONFIG_H
+
+#include "gen_config.h"
+
+/**
+ * This initializes the configuration variables, and sets the default
+ * variables.
+ *
+ * NOTE: Any variable is set to it's default variable if zero.
+ * This function is automatically called in read_config to set any
+ * configuration that was missing there.
+ */
+extern void config_defaults(struct hub_config* config);
+
+/**
+ * Read configuration from file, and use the default variables for
+ * the missing variables.
+ *
+ * @return -1 on error, 0 on success.
+ */
+extern int read_config(const char* file, struct hub_config* config, int allow_missing);
+
+/**
+ * Free the configuration data (allocated by read_config, or config_defaults).
+ */
+extern void free_config(struct hub_config* config);
+
+/**
+ * Print all configuration data to standard out.
+ */
+extern void dump_config(struct hub_config* config, int ignore_defaults);
+
+
+#endif /* HAVE_UHUB_CONFIG_H */
+

src/core/config.pl

@@ -0,0 +1,260 @@
+#!/usr/bin/perl -w
+
+use strict;
+use XML::Twig;
+
+sub write_c_header(@);
+sub write_c_impl_defaults(@);
+sub write_c_impl_apply(@);
+sub write_c_impl_free(@);
+sub write_c_impl_dump(@);
+sub get_data($);
+
+# initialize parser and read the file
+my $input = "./config.xml";
+my $parser = XML::Twig->new();
+my $tree = $parser->parsefile($input) || die "Unable to parse XML file.";
+
+# Write header file
+open GENHEAD, ">gen_config.h" || die "Unable to write header file";
+print GENHEAD "/* THIS FILE IS AUTOGENERATED - DO NOT CHANGE IT! */\n\nstruct hub_config\n{\n";
+foreach my $p ($tree->root->children("option"))
+{
+	write_c_header(get_data($p));
+}
+print GENHEAD "};\n\n";
+
+# Write c source file
+open GENIMPL, ">gen_config.c" || die "Unable to write source file";
+print GENIMPL "/* THIS FILE IS AUTOGENERATED - DO NOT CHANGE IT! */\n\n";
+
+# The defaults function
+print GENIMPL "void config_defaults(struct hub_config* config)\n{\n";
+foreach my $p ($tree->root->children("option"))
+{
+	write_c_impl_defaults(get_data($p));
+}
+print GENIMPL "}\n\n";
+
+# apply function
+print GENIMPL "static int apply_config(struct hub_config* config, char* key, char* data, int line_count)\n{\n\tint max = 0;\n\tint min = 0;\n\n";
+
+foreach my $p ($tree->root->children("option"))
+{
+	write_c_impl_apply(get_data($p));
+}
+print GENIMPL "\t/* Still here -- unknown directive */\n";
+print GENIMPL "\tLOG_ERROR(\"Unknown configuration directive: '%s'\", key);\n";
+print GENIMPL "\t\treturn -1;\n";
+print GENIMPL "}\n\n";
+
+# free function (for strings)
+print GENIMPL "void free_config(struct hub_config* config)\n{\n";
+foreach my $p ($tree->root->children("option"))
+{
+	write_c_impl_free(get_data($p));
+}
+print GENIMPL "}\n\n";
+
+# dump function
+print GENIMPL "void dump_config(struct hub_config* config, int ignore_defaults)\n{\n";
+foreach my $p ($tree->root->children("option"))
+{
+	write_c_impl_dump(get_data($p));
+}
+print GENIMPL "}\n\n";
+
+
+
+sub write_c_header(@)
+{
+	my @output = @_;
+	my ($type, $name, $default, $advanced, $short, $desc, $since, $example) = @output;
+
+	print GENHEAD "\t";
+	print GENHEAD "int  " if ($type eq "int");
+	print GENHEAD "int  " if ($type eq "boolean");
+	print GENHEAD "char*" if ($type =~ /(string|file|message)/);
+	print GENHEAD " " . $name . ";";
+
+	my $comment = "";
+	if ($type eq "message")
+	{
+		$comment = "\"" . $default . "\"";
+	}
+	elsif (defined $short && length $short > 0)
+	{
+		$comment = $short;
+		$comment .= " (default: " . $default . ")" if (defined $default);
+	}
+
+	if (length $comment > 0)
+	{
+		my $pad = "";
+		for (my $i = length $name; $i < 32; $i++)
+		{
+			$pad .= " ";
+		}
+		$comment = $pad . "/*<<< " . $comment . " */";
+	}
+
+	print GENHEAD $comment . "\n";
+}
+
+sub write_c_impl_defaults(@)
+{
+	my @output = @_;
+	my ($type, $name, $default, $advanced, $short, $desc, $since, $example) = @output;
+	my $prefix = "";
+	my $suffix = "";
+
+	print GENIMPL "\tconfig->$name = ";
+	if ($type =~ /(string|file|message)/)
+	{
+		$prefix = "hub_strdup(\"";
+		$suffix = "\")"
+	}
+	print GENIMPL $prefix . $default . $suffix . ";\n";
+}
+
+sub write_c_impl_apply(@)
+{
+	my @output = @_;
+	my ($type, $name, $default, $advanced, $short, $desc, $since, $example, $p) = @output;
+
+	my $min;
+	my $max;
+	my $regexp;
+	my $expect = "";
+
+	if (defined $p)
+	{
+		$min = $p->att("min");
+		$max = $p->att("max");
+		$regexp = $p->att("regexp");
+
+		print "'check' is defined for option $name";
+		print ", min=$min" if (defined $min);
+		print ", max=$max" if (defined $max);
+		print ", regexp=\"$regexp\"" if (defined $regexp);
+		print "\n";
+	}
+
+	print GENIMPL "\tif (!strcmp(key, \"" . $name . "\"))\n\t{\n";
+
+	$expect = "\\\"$name\\\"";
+
+	if ($type eq "int")
+	{
+		$expect .= " (integer)";
+		$expect .= ", default=" . $default;
+
+		if (defined $min)
+		{
+			$expect .= ", min=" . $min;
+			print GENIMPL "\t\tmin = $min;\n"
+		}
+		if (defined $max)
+		{
+			$expect .= ", max=" . $max;
+			print GENIMPL "\t\tmax = $max;\n"
+		}
+
+		print GENIMPL "\t\tif (!apply_integer(key, data, &config->$name, ";
+
+		if (defined $min)
+		{
+			print GENIMPL "&min";
+		}
+		else
+		{
+			print GENIMPL "0";
+		}
+
+		print GENIMPL ", ";
+
+		if (defined $max)
+		{
+			print GENIMPL "&max";
+		}
+		else
+		{
+			print GENIMPL "0";
+		}
+
+		print GENIMPL "))\n";
+	}
+	elsif ($type eq "boolean")
+	{
+		$expect .= " (boolean)";
+		$expect .= ", default=" . $default;
+		print GENIMPL "\t\tif (!apply_boolean(key, data, &config->$name))\n";
+	}
+	elsif ($type =~ /(string|file|message)/)
+	{
+		$expect .= " (" . $type . ")";
+		$expect .= ", default=\\\"" . $default . "\\\"";
+		print GENIMPL "\t\tif (!apply_string(key, data, &config->$name, (char*) \"\"))\n";
+	}
+	else
+	{
+		$expect = " is unknown.";
+	}
+
+	print GENIMPL "\t\t{\n" .
+				  "\t\t\tLOG_ERROR(\"Configuration parse error on line %d\", line_count);\n";
+
+	print GENIMPL 		  "\t\t\tLOG_ERROR(\"" . $expect . "\");\n" if ($expect ne "");
+
+	print GENIMPL		  "\t\t\treturn -1;\n" .
+				  "\t\t}\n" .
+				  "\t\treturn 0;\n" .
+				  "\t}\n\n";
+}
+
+sub write_c_impl_free(@)
+{
+	my @output = @_;
+	my ($type, $name, $default, $advanced, $short, $desc, $since, $example) = @output;
+
+	if ($type =~ /(string|file|message)/)
+	{
+		print GENIMPL "\thub_free(config->" . $name . ");\n\n" 
+	}
+}
+
+sub write_c_impl_dump(@)
+{
+	my @output = @_;
+	my ($type, $name, $default, $advanced, $short, $desc, $since, $example) = @output;
+	my $out;
+	my $val = "config->$name";
+	my $test = "config->$name != $default";
+
+	if ($type eq "int")
+	{
+		$out = "%d";
+	}
+	elsif ($type eq "boolean")
+	{
+		$out = "%s";
+		$val = "config->$name ? \"yes\" : \"no\"";
+	}
+	elsif ($type =~ /(string|file|message)/)
+	{
+		$out = "\\\"%s\\\"";
+		$test = "strcmp(config->$name, \"$default\") != 0";
+	}
+
+	print GENIMPL "\tif (!ignore_defaults || $test)\n";
+	print GENIMPL "\t\tfprintf(stdout, \"$name = $out\\n\", $val);\n\n";
+}
+
+sub get_data($)
+{
+	my $p = shift;
+	my $check = $p->first_child_matches("check");
+	my @data = ($p->att("type"), $p->att("name"), $p->att("default"), $p->att("advanced"), $p->children_text("short"), $p->children_text("description"), $p->children_text("since"), $p->children_text("example"), $check);
+	return @data;
+}
+

src/core/config.xml

@@ -0,0 +1,685 @@
+<?xml version='1.0' standalone="yes" ?>
+<config>
+
+	<option name="hub_enabled" type="boolean" default="1">
+		<short>Is server enabled</short>
+		<description><![CDATA[
+			Use this to disable the hub for a while.
+		]]></description>
+		<since>0.1.3</since>
+	</option>
+
+	<option name="server_port" type="int" default="1511">
+		<check min="1" max="65535" />
+		<since>0.1.0</since>
+		<short>Server port to bind to</short>
+		<description><![CDATA[This is specifies the port number the hub should listen on.]]></description>
+	</option>
+
+	<option name="server_bind_addr" type="string" default="any">
+		<check regexp="(\d\.\d\.\d\.\d\)|(any)|(loopback)|(.*)" /><!-- FIXME: add better IPv6 regexp in the future! -->
+		<short>Server bind address</short>
+		<description><![CDATA[
+			Specify the IP address the local hub should bind to. This can be an IPv4 or IPv6 address, or one of the special addresses "any" or "loopback". <br />
+			When "any" or "loopback" is used, the hub will automatically detect if IPv6 is supported and prefer that.
+		]]></description>
+		<syntax>
+			IPv4 address, IPv6 address, "any" or "loopback"
+		</syntax>
+		<since>0.1.2</since>
+		<example><![CDATA[
+				<p>
+				To listen to a specific IP:<br />
+				server_bind_addr = "192.168.12.69"
+				</p>
+				<p>
+				To listen to any IPv4 address:<br />
+				server_bind_addr = "0.0.0.0"
+				</p>
+				<p>
+				Or to listen to any address including IPv6 (if supported):<br />
+				server_bind_addr = "any"
+				</p>
+		]]></example>
+	</option>
+
+	<option name="server_listen_backlog" type="int" default="50">
+		<check min="5" />
+		<short>Server listen backlog</short>
+		<description><![CDATA[
+			<p>
+			This specifies the number of connections the hub will be able to accept in the backlog before they must be processed by the hub.
+			</p>
+			<p>
+			A too low number here will mean the hub will not accept connections fast enough when users are reconnecting really fast. The hub should under normal circumstances be able to empty the listen backlog several times per second.
+			</p>
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="server_alt_ports" type="string" default="">
+		<check regexp="((\d+)(,(\d+))*)?" />
+		<short>Comma separated list of alternative ports to listen to</short>
+		<description><![CDATA[
+		In addition to the server_port the hub can listen to a list of alternative ports.
+		]]></description>
+		<example><![CDATA[
+			server_alt_ports = 1295,1512,53990
+		]]></example>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="show_banner" type="boolean" default="1">
+		<short>Show banner on connect</short>
+		<description><![CDATA[
+			If enabled, the hub will announce the software version running to clients when they connect with a message like: "Powered by uhub/0.x.y"
+		]]></description>
+		<since>0.1.0</since>
+	</option>
+
+	<option name="show_banner_sys_info" type="boolean" default="1">
+		<short>Show banner on connect</short>
+		<description><![CDATA[
+			If enabled, the hub will announce the operating system and CPU architecture to clients when they join.<br />
+			This option has no effect if show_banner is disabled.
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="max_users" type="int" default="500">
+		<check min="1" max="1048576" />
+		<short>Maximum number of users allowed on the hub</short>
+		<description><![CDATA[
+			The maximum amount of users allowed on the hub.
+			No new users will be allowed to enter the hub if this number is exceeded, however privileged users (operators, admins, etc) are still able to log in.
+		]]></description>
+		<since>0.1.0</since>
+		<example><![CDATA[
+			To run a hub for max 25 users:<br />
+				max_users = 25
+		]]></example>
+	</option>
+
+	<option name="registered_users_only" type="boolean" default="0">
+		<short>Allow registered users only</short>
+		<description><![CDATA[
+			If this is enabled only registered users will be able to use the hub. A user must be registered in the acl file (file_acl).
+		]]></description>
+		<since>0.1.1</since>
+	</option>
+
+	<option name="obsolete_clients" type="boolean" default="0">
+		<short>Support obsolete clients using a ADC protocol prior to 1.0</short>
+		<description><![CDATA[
+			If this is enabled users using old ADC clients are allowed to enter the hub,
+			however they cannot log in using passwords since the protocols are incompatible.
+		]]></description>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="chat_only" type="boolean" default="0">
+		<short>Allow chat only operation on hub</short>
+		<description><![CDATA[
+			If this is enabled the hub will refuse to relay messages for search and connection setup. This effectively makes the hub viable for chat only.
+		]]></description>
+		<since>0.1.1</since>
+	</option>
+
+	<option name="chat_is_privileged" type="boolean" default="0">
+		<short>Allow chat for operators and above only</short>
+		<description><![CDATA[
+			If enabled only operators and admins are allowed to chat in the main chat.
+		]]></description>
+		<since>0.2.4</since>
+	</option>
+
+	<option name="hub_name" type="string" default="uhub">
+		<short>Name of hub</short>
+		<description><![CDATA[
+		Configures the name of the hub
+		]]></description>
+		<since>0.1.0</since>
+		<example><![CDATA[
+			hub_name = "my hub"
+		]]></example>
+	</option>
+
+	<option name="hub_description" type="string" default="no description">
+		<short>Short hub description, topic or subject.</short>
+		<description><![CDATA[
+		This is the description of the hub, as seen by users and hub lists.
+		]]></description>
+		<since>0.1.0</since>
+		<example><![CDATA[
+			hub_description = "a friendly hub for friendly people"
+		]]></example>
+	</option>
+
+	<option name="redirect_addr" type="string" default="">
+		<check regexp="(adc|adcs|dchub)://.*" />
+		<short>A common hub redirect address.</short>
+		<description><![CDATA[
+		This is the redirect address used when the hub wants to redirect a client for not fulfilling some requirements.
+		]]></description>
+		<since>0.3.2</since>
+	</option>
+
+
+	<option name="max_recv_buffer" type="int" default="4096" advanced="true" >
+		<check min="1024" max="1048576" />
+		<short>Max read buffer before parse, per user</short>
+		<description><![CDATA[
+			Maximum receive buffer allowed before commands are procesed. If a single ADC message exceeds this limit, it will be discarded by the hub. Use with caution.
+		]]></description>
+		<since>0.1.3</since>
+	</option>
+
+	<option name="max_send_buffer" type="int" default="131072" advanced="true" >
+		<check min="2048" />
+		<short>Max send buffer before disconnect, per user</short>
+		<description><![CDATA[
+			Maximum amount of bytes allowed to be queued for sending to any particular user before the hub will disconnect the user. The lower the limit, the more aggressive the hub will be to disconnect slow clients. Use with caution.
+		]]></description>
+		<since>0.1.3</since>
+	</option>
+
+	<option name="max_send_buffer_soft" type="int" default="98304" advanced="true" >
+		<check min="1024" />
+		<short>Max send buffer before message drops, per user</short>
+		<description><![CDATA[
+			Same as max_send_buffer, however low priority messages may be discarded if this limit is reached. Use with caution.
+		]]></description>
+		<since>0.1.3</since>
+	</option>
+
+	<option name="low_bandwidth_mode" type="boolean" default="0" advanced="true" >
+		<short>Enable bandwidth saving measures</short>
+		<description><![CDATA[
+			If this is enabled the hub will remove excessive information from each user's info message before broadcasting to all connected users.
+			Description, e-mail address will be removed. This saves upload bandwidth for the hub.
+		]]></description>
+		<since>0.2.2</since>
+	</option>
+
+	<option name="max_chat_history" type="int" default="20">
+		<check min="0" max="250" />
+		<short>Number of chat messages kept in history</short>
+		<description><![CDATA[
+			This specifies the number of main chat messages that are kept in the history buffer.
+			Users can use the "!history" command to list these messages.
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="max_logout_log" type="int" default="20">
+		<check min="0" max="2000" />
+		<short>Number of log entries for people leaving the hub</short>
+		<description><![CDATA[
+			Operators can use the "!log" command to list users who have recently left the hub.
+			This option specifies the maximum size of this log.
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="limit_max_hubs_user" type="int" default="10">
+		<check min="0" />
+		<short>Max concurrent hubs as a guest user</short>
+		<description><![CDATA[
+		This limits the number of hubs a user can be logged into as a guest user. If this number is exceeded, the user will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_max_hubs_reg" type="int" default="10">
+		<check min="0" />
+		<short>Max concurrent hubs as a registered user</short>
+		<description><![CDATA[
+		This limits the number of hubs a user can be logged into as a registered user. If this number is exceeded, the user will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_max_hubs_op" type="int" default="10">
+		<check min="0" />
+		<short>Max concurrent hubs as a operator (or admin)</short>
+		<description><![CDATA[
+		This limits the number of hubs a user can be logged into as an operator. If this number is exceeded, the user will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_max_hubs" type="int" default="25">
+		<check min="0" />
+		<short>Max total hub connections allowed, user/reg/op combined.</short>
+		<description><![CDATA[
+		Limit the number of hubs a user can be logged into in total regardless of registrations or privileges.
+		If this number is exceeded, the user will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_min_hubs_user" type="int" default="0">
+		<check min="0" />
+		<short>Minimum concurrent hubs as a guest user</short>
+		<description><![CDATA[
+		Only allow users that are logged into other hubs with guest privileges to enter this hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_min_hubs_reg" type="int" default="0">
+		<check min="0" />
+		<short>Minimum concurrent hubs as a registered user</short>
+		<description><![CDATA[
+		Only allow users that are logged into other hubs as a registered user to enter this hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_min_hubs_op" type="int" default="0">
+		<check min="0" />
+		<short>Minimum concurrent hubs as a operator (or admin)</short>
+		<description><![CDATA[
+		Only allow users that are logged into other hubs with operator privileges to enter this hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_min_share" type="int" default="0">
+		<check min="0" />
+		<short>Limit minimum share size in megabytes</short>
+		<description><![CDATA[
+		Minimum share limit in megabytes (MiB). Users sharing less than this will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+		<example><![CDATA[
+			To require users to share at least 1 GB in order to enter the hub:<br />
+			limit_min_share = 1024
+		]]></example>
+	</option>
+
+	<option name="limit_max_share" type="int" default="0">
+		<check min="0" />
+		<short>Limit maximum share size in megabytes</short>
+		<description><![CDATA[
+		Maximum share limit in megabytes (MiB). Users sharing more than this will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+
+	<option name="limit_min_slots" type="int" default="0">
+		<check min="0" />
+		<short>Limit minimum number of upload slots open per user</short>
+		<description><![CDATA[
+		Minimum number of upload slots required. Users with less than this will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="limit_max_slots" type="int" default="0">
+		<check min="0" />
+		<short>Limit minimum number of upload slots open per user</short>
+		<description><![CDATA[
+		Maximum number of upload slots allowed. Users with more than this will not be allowed to enter the hub.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="flood_ctl_interval" type="int" default="0">
+		<check min="1" max="60" />
+		<short>Time interval in seconds for flood control check.</short>
+		<description><![CDATA[
+			This is the time interval that will be used for all flood control calculations.
+			If this is 0 then all flood control is disabled.
+		]]></description>
+		<example><![CDATA[
+			To limit maximum chat messages to 5 messages on 10 seconds: <br />
+			flood_ctl_interval = 10 <br />
+			flood_ctl_chat = 5<br />
+		]]></example>
+		<syntax>0 = off</syntax>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="flood_ctl_chat" type="int" default="0">
+		<short>Max chat messages allowed in time interval</short>
+		<description><![CDATA[
+			If this is 0 then no flood control is disabled for chat messages.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="flood_ctl_connect" type="int" default="0">
+		<short>Max connections requests allowed in time interval</short>
+		<description><![CDATA[
+			If this is 0 then no flood control is disabled for connection requests.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="flood_ctl_search" type="int" default="0">
+		<short>Max search requests allowed in time interval</short>
+		<description><![CDATA[
+			If this is 0 then no flood control is disabled for search requests.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.3.1</since>
+	</option>
+
+
+	<option name="flood_ctl_update" type="int" default="0">
+		<short>Max updates allowed in time interval</short>
+		<description><![CDATA[
+			If this is 0 then no flood control is disabled for info updates (INF messages).
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="flood_ctl_extras" type="int" default="0">
+		<short>Max extra messages allowed in time interval</short>
+		<description><![CDATA[
+			Extra messages are messages that don't fit into the category of chat, search, update or connect.
+		]]></description>
+		<syntax>0 = off</syntax>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="tls_enable" type="boolean" default="0">
+		<short>Enable SSL/TLS support</short>
+		<description><![CDATA[
+			Enables/disables TLS/SSL support. tls_certificate and tls_private_key must be set if this is enabled.
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="tls_require" type="boolean" default="0">
+		<short>If SSL/TLS enabled, should it be required (default: 0)</short>
+		<description><![CDATA[
+			If TLS/SSL support is enabled it can either be optional or mandatory.
+			If this option is disabled then SSL/TLS is not required to enter the hub, however it is possible to enter either with or without.
+			This option has no effect unless tls_enable is enabled.
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="tls_require_redirect_addr" type="string" default="">
+		<check regexp="(adc|adcs|dchub)://.*" />
+		<short>A redirect address in case a client connects using "adc://" when "adcs://" is required.</short>
+		<description><![CDATA[
+		This is the redirect address used when the hub wants to redirect a client for not using ADCS.
+		For instance a hub at adc://adc.example.com might redirect to adcs://adc.example.com
+		]]></description>
+		<since>0.3.3</since>
+	</option>
+
+
+	<option name="tls_certificate" type="file" default="">
+		<short>Certificate file</short>
+		<description><![CDATA[
+			Path to a TLS/SSL certificate (PEM format).
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="tls_private_key" type="file" default="">
+		<short>Private key file</short>
+		<description><![CDATA[
+			Path to a TLS/SSL private key (PEM format).
+		]]></description>
+		<since>0.3.0</since>
+	</option>
+
+	<option name="file_motd" type="file" default="">
+		<short>File containing the 'message of the day</short>
+		<description><![CDATA[
+			This can be specified as a message of the day file. If a valid file is given here it's content will be sent to all users after they have logged in to the hub. If the file is missing or empty this configuration entry will be ignored.
+		]]></description>
+		<since>0.1.3</since>
+		<example><![CDATA[
+			<p>
+			Unix users: <br />
+				file_acl = "/etc/uhub/motd.txt"
+			</p>
+			<p>
+			Windows users: <br />
+				file_acl = "c:\uhub\motd.txt"
+			</p>
+		]]></example>
+	</option>
+
+	<option name="file_acl" type="file" default="">
+		<short>File containing access control lists</short>
+		<description><![CDATA[
+			This is an access control list (acl) file.
+			In this file all registered users, bans, etc should be stored.
+			If the file is missing, or empty no registered users, or ban records are used.
+		]]></description>
+		<since>0.1.3</since>
+		<example><![CDATA[
+			<p>
+			Unix users: <br />
+				file_acl = "/etc/uhub/users.conf"
+			</p>
+			<p>
+			Windows users: <br />
+				file_acl = "c:\uhub\users.conf"
+			</p>
+		]]></example>
+	</option>
+
+	<option name="file_rules" type="file" default="">
+		<short>File containing hub rules</short>
+		<description><![CDATA[
+			This is a text file that is displayed on login as an extended message of the day.
+			In addition the contents of the file is displayed when a user uses the "!rules" command.
+		]]></description>
+		<since>0.3.0</since>
+		<example><![CDATA[
+			<p>
+			Unix users: <br />
+				file_acl = "/etc/uhub/rules.txt"
+			</p>
+			<p>
+			Windows users: <br />
+				file_acl = "c:\uhub\rules.txt"
+			</p>
+		]]></example>
+	</option>
+
+	<option name="msg_hub_full" type="message" default="Hub is full" >
+		<description><![CDATA[This will be sent if the hub is full]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_hub_disabled" type="message" default="Hub is disabled" >
+		<description><![CDATA[This will be sent if the hub is disabled (hub_enable = off)]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_hub_registered_users_only" type="message" default="Hub is for registered users only" >
+		<description><![CDATA[This will be sent if the hub is configured to only accept registered users (registered_users_only = yes)]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_missing" type="message" default="No nickname given">
+		<description><![CDATA[This is an error message that will be sent to clients that do not provide a nickname.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_multiple" type="message" default="Multiple nicknames given">
+		<description><![CDATA[This is an error message that will be sent to clients that provide multiple nicknames.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_invalid" type="message" default="Nickname is invalid">
+		<description><![CDATA[This is an error message that will be sent to clients that provides an invalid nickname.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_long" type="message" default="Nickname too long">
+		<description><![CDATA[This is an error message that will be sent to clients that provides a too long nickname.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_short" type="message" default="Nickname too short">
+		<description><![CDATA[This is an error message that will be sent to clients that provides a too short nickname.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_spaces" type="message" default="Nickname cannot start with spaces">
+		<description><![CDATA[This is an error message that will be sent to clients that provides a nickname that starts with a space.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_bad_chars" type="message" default="Nickname contains invalid characters">
+		<description><![CDATA[This is an error message that will be sent to clients that provides invalid characters in the nickname.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_not_utf8" type="message" default="Nickname is not valid UTF-8">
+		<description><![CDATA[This is an error message that will be sent to clients that provides a nick name that is not valid UTF-8 encoded.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_taken" type="message" default="Nickname is already in use">
+		<description><![CDATA[This message will be sent to clients if their provided nickname is alredy in use on the hub.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_nick_restricted" type="message" default="Nickname cannot be used on this hub">
+		<description><![CDATA[This message will be sent to clients if they provide a restricted nickname. Restricted names can be configured in the acl.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_cid_invalid" type="message" default="CID is not valid">
+		<description><![CDATA[This is an error message that will be sent to clients that provides an invalid client ID (CID)]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_cid_missing" type="message" default="CID is not specified">
+		<description><![CDATA[This is an error message that will be sent to clients that does not provide a client ID (CID)]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_cid_taken" type="message" default="CID is taken">
+		<description><![CDATA[This is an error message that will be sent to clients that provides a client ID (CID) already in use on the hub.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_pid_missing" type="message" default="PID is not specified">
+		<description><![CDATA[This is an error message that will be sent to clients that does not provide a private ID (PID)]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_inf_error_pid_invalid" type="message" default="PID is invalid">
+		<description><![CDATA[This is an error message that will be sent to clients that provides an invalid private ID (PID)]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_ban_permanently" type="message" default="Banned permanently">
+		<description><![CDATA[This message is sent to users if they are banned (see acl)]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_ban_temporarily"  type="message" default="Banned temporarily">
+		<description><![CDATA[This message is sent to users if they are banned temporarily]]></description>
+		<since>0.2.0</since>
+	</option>
+
+
+	<option name="msg_auth_invalid_password" type="message" default="Password is wrong">
+		<description><![CDATA[This message is sent to users if they provide a wrong password.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_auth_user_not_found" type="message" default="User not found in password database">
+		<description><![CDATA[This message is used if a user cannot be found in the password database.]]></description>
+		<since>0.2.0</since> <!-- FIXME? -->
+	</option>
+
+	<option name="msg_error_no_memory" type="message" default="No memory">
+		<description><![CDATA[]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_user_share_size_low" type="message" default="User is not sharing enough">
+		<description><![CDATA[This message is sent to users if they are not sharing enough.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_user_share_size_high" type="message" default="User is sharing too much">
+		<description><![CDATA[This message is sent to users if they are sharing too much.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_user_slots_low" type="message" default="User have too few upload slots.">
+		<description><![CDATA[This message is sent to users if they do not have enough upload slots.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_user_slots_high" type="message" default="User have too many upload slots.">
+		<description><![CDATA[This message is sent to users if they have too many upload slots.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_user_hub_limit_low" type="message" default="User is on too few hubs.">
+		<description><![CDATA[This message is sent to users if they are on too few other hubs.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_user_hub_limit_high" type="message" default="User is on too many hubs.">
+		<description><![CDATA[This message is sent to users if they are on too many other hubs.]]></description>
+		<since>0.2.0</since>
+	</option>
+
+	<option name="msg_user_flood_chat" type="message" default="Chat flood detected, messages are dropped.">
+		<description><![CDATA[This message is sent once to users who are flooding the chat.]]></description>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="msg_user_flood_connect" type="message" default="Connect flood detected, connection refused.">
+		<description><![CDATA[This message is sent once to users who are sending too many connect requests too fast.]]></description>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="msg_user_flood_search" type="message" default="Search flood detected, search is stopped.">
+		<description><![CDATA[This message is sent once to users who are sending too many search requests too fast.]]></description>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="msg_user_flood_update" type="message" default="Update flood detected.">
+		<description><![CDATA[This message is sent once to users who are sending too many updates too fast.]]></description>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="msg_user_flood_extras" type="message" default="Flood detected.">
+		<description><![CDATA[This message is sent once to users who are sending too many messages to the hub that neither are chat, searhes, updates nor connection requests..]]></description>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="msg_proto_no_common_hash" type="message" default="No common hash algorithm.">
+		<description><![CDATA[This message is sent if a client connects that does support ADC/1.0 but not a hash algorithm that the hub supports.]]></description>
+		<since>0.3.1</since>
+	</option>
+
+	<option name="msg_proto_obsolete_adc0" type="message" default="Client is using an obsolete ADC protocol version.">
+		<description><![CDATA[This message is sent if a client connects that does not support ADC/1.0, but rather the obsolete ADC/0.1 version.]]></description>
+		<since>0.3.1</since>
+	</option>
+
+</config>

src/core/eventid.h

@@ -0,0 +1,41 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_EVENT_ID_H
+#define HAVE_UHUB_EVENT_ID_H
+
+/* User join or quit messages */
+#define UHUB_EVENT_USER_JOIN         0x1001
+#define UHUB_EVENT_USER_QUIT         0x1002
+#define UHUB_EVENT_USER_DESTROY      0x1003
+
+/* Send a broadcast message */
+#define UHUB_EVENT_BROADCAST         0x2000
+
+/* Shutdown hub */
+#define UHUB_EVENT_HUB_SHUTDOWN      0x3001
+
+/* Statistics, OOM, reconfigure */
+#define UHUB_EVENT_STATISTICS        0x4000
+#define UHUB_EVENT_OUT_OF_MEMORY     0x4001
+#define UHUB_EVENT_RECONFIGURE       0x4002
+
+
+#endif /* HAVE_UHUB_EVENT_ID_H */
+

src/core/eventqueue.c

@@ -0,0 +1,144 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+#ifdef EQ_DEBUG
+static void eq_debug(const char* prefix, struct event_data* data)
+{
+	LOG_DUMP(">>> %s: %p, id: %x, flags=%d\n", prefix, data, data->id, data->flags);
+}
+#endif
+
+
+int event_queue_initialize(struct event_queue** queue, event_queue_callback callback, void* ptr)
+{
+	*queue = (struct event_queue*) hub_malloc_zero(sizeof(struct event_queue));
+	if (!(*queue))
+		return -1;
+	
+	(*queue)->q1 = list_create();
+	(*queue)->q2 = list_create();
+	
+	if (!(*queue)->q1 || !(*queue)->q2)
+	{
+		list_destroy((*queue)->q1);
+		list_destroy((*queue)->q2);
+		return -1;
+	}
+	
+	(*queue)->callback = callback;
+	(*queue)->callback_data = ptr;
+	
+	return 0;
+}
+
+
+void event_queue_shutdown(struct event_queue* queue)
+{
+	/* Should be empty at this point! */
+	list_destroy(queue->q1);
+	list_destroy(queue->q2);
+	hub_free(queue);
+}
+
+static void event_queue_cleanup_callback(void* ptr)
+{
+#ifdef EQ_DEBUG
+	struct event_data* data = (struct event_data*) ptr;
+	eq_debug("NUKE", data);
+#endif
+
+	hub_free((struct event_data*) ptr);
+}
+
+int event_queue_process(struct event_queue* queue)
+{
+	struct event_data* data;
+	if (queue->locked)
+		return 0;
+	
+	/* lock primary queue, and handle the primary queue messages. */
+	queue->locked = 1;
+	
+	data = (struct event_data*) list_get_first(queue->q1);
+	while (data)
+	{
+#ifdef EQ_DEBUG
+		eq_debug("EXEC", data);
+#endif
+		queue->callback(queue->callback_data, data);
+		data = (struct event_data*) list_get_next(queue->q1);
+	}
+	
+	list_clear(queue->q1, event_queue_cleanup_callback);
+	assert(list_size(queue->q1) == 0);
+		
+	/* unlock queue */
+	queue->locked = 0;
+	
+	/* transfer from secondary queue to the primary queue. */
+	data = (struct event_data*) list_get_first(queue->q2);
+	while (data)
+	{
+		list_remove(queue->q2, data);
+		list_append(queue->q1, data);
+		data = (struct event_data*) list_get_first(queue->q2);
+	}
+	
+	/* if more events exist, schedule it */
+	if (list_size(queue->q1))
+	{
+		return 1;
+	}
+	return 0;
+}
+
+void event_queue_post(struct event_queue* queue, struct event_data* message)
+{
+	struct linked_list* q = (!queue->locked) ? queue->q1 : queue->q2;
+	struct event_data* data;
+	
+	data = (struct event_data*) hub_malloc(sizeof(struct event_data));
+	if (data)
+	{
+		data->id    = message->id;
+		data->ptr   = message->ptr;
+		data->flags = message->flags;
+		
+#ifdef EQ_DEBUG
+		eq_debug("POST", data);
+#endif
+		
+		list_append(q, data);
+	}
+	else
+	{
+		LOG_ERROR("event_queue_post: OUT OF MEMORY");
+	}
+}
+
+
+size_t event_queue_size(struct event_queue* queue)
+{
+	return list_size(queue->q1) + list_size(queue->q2);
+}
+
+
+

src/core/eventqueue.h

@@ -0,0 +1,48 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_EVENT_QUEUE_H
+#define HAVE_UHUB_EVENT_QUEUE_H
+
+struct event_data
+{
+	int id;
+	void* ptr;
+	int flags;
+};
+
+typedef void (*event_queue_callback)(void* callback_data, struct event_data* event_data);
+
+struct event_queue
+{
+	int locked;
+	struct linked_list* q1; /* primary */
+	struct linked_list* q2; /* secondary, when primary is locked */
+	event_queue_callback callback;
+	void* callback_data;
+};
+
+extern int event_queue_initialize(struct event_queue** queue, event_queue_callback callback, void* ptr);
+extern int event_queue_process(struct event_queue* queue);
+extern void event_queue_shutdown(struct event_queue* queue);
+extern void event_queue_post(struct event_queue* queue, struct event_data* message);
+extern size_t event_queue_size(struct event_queue* queue);
+
+#endif /* HAVE_UHUB_EVENT_QUEUE_H */
+

src/core/floodctl.c

@@ -0,0 +1,55 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+void flood_control_reset(struct flood_control* data)
+{
+	memset(data, 0, sizeof(struct flood_control));
+}
+
+int  flood_control_check(struct flood_control* data, size_t max_count, size_t time_delay, time_t now)
+{
+	// Is flood control disabled?
+	if (!time_delay || !max_count)
+		return 0;
+
+	if (!data->time)
+	{
+		data->time = now;
+		data->count = 0;
+		return 0;
+	}
+
+	if ((now - data->time) > time_delay)
+	{
+		data->time = now;
+		data->count = 0;
+		return 0;
+	}
+
+	if (data->count <= max_count)
+	{
+		data->count++;
+		return 0;
+	}
+
+	return 1;
+}
+

src/core/floodctl.h

@@ -0,0 +1,47 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_FLOOD_CTL_H
+#define HAVE_UHUB_FLOOD_CTL_H
+
+struct flood_control
+{
+	time_t time;
+	size_t count;
+};
+
+/**
+ * Reset flood control statistics
+ */
+void flood_control_reset(struct flood_control*);
+
+/**
+ * @param ctl Flood control data structure
+ * @param max_count Max count for flood control
+ * @param window Time window for max_count to appear.
+ * @param now The current time.
+ * 
+ * @return 0 if flood no flood detected.
+ *         1 if flood detected.
+ */
+int  flood_control_check(struct flood_control* ctl, size_t max_count, size_t window, time_t now);
+
+
+#endif /* HAVE_UHUB_FLOOD_CTL_H */
+

src/core/gen_config.h

@@ -0,0 +1,88 @@
+/* THIS FILE IS AUTOGENERATED - DO NOT CHANGE IT! */
+
+struct hub_config
+{
+	int   hub_enabled;                     /*<<< Is server enabled (default: 1) */
+	int   server_port;                     /*<<< Server port to bind to (default: 1511) */
+	char* server_bind_addr;                /*<<< Server bind address (default: any) */
+	int   server_listen_backlog;           /*<<< Server listen backlog (default: 50) */
+	char* server_alt_ports;                /*<<< Comma separated list of alternative ports to listen to (default: ) */
+	int   show_banner;                     /*<<< Show banner on connect (default: 1) */
+	int   show_banner_sys_info;            /*<<< Show banner on connect (default: 1) */
+	int   max_users;                       /*<<< Maximum number of users allowed on the hub (default: 500) */
+	int   registered_users_only;           /*<<< Allow registered users only (default: 0) */
+	int   obsolete_clients;                /*<<< Support obsolete clients using a ADC protocol prior to 1.0 (default: 0) */
+	int   chat_only;                       /*<<< Allow chat only operation on hub (default: 0) */
+	int   chat_is_privileged;              /*<<< Allow chat for operators and above only (default: 0) */
+	char* hub_name;                        /*<<< Name of hub (default: uhub) */
+	char* hub_description;                 /*<<< Short hub description, topic or subject. (default: no description) */
+	char* redirect_addr;                   /*<<< A common hub redirect address. (default: ) */
+	int   max_recv_buffer;                 /*<<< Max read buffer before parse, per user (default: 4096) */
+	int   max_send_buffer;                 /*<<< Max send buffer before disconnect, per user (default: 131072) */
+	int   max_send_buffer_soft;            /*<<< Max send buffer before message drops, per user (default: 98304) */
+	int   low_bandwidth_mode;              /*<<< Enable bandwidth saving measures (default: 0) */
+	int   max_chat_history;                /*<<< Number of chat messages kept in history (default: 20) */
+	int   max_logout_log;                  /*<<< Number of log entries for people leaving the hub (default: 20) */
+	int   limit_max_hubs_user;             /*<<< Max concurrent hubs as a guest user (default: 10) */
+	int   limit_max_hubs_reg;              /*<<< Max concurrent hubs as a registered user (default: 10) */
+	int   limit_max_hubs_op;               /*<<< Max concurrent hubs as a operator (or admin) (default: 10) */
+	int   limit_max_hubs;                  /*<<< Max total hub connections allowed, user/reg/op combined. (default: 25) */
+	int   limit_min_hubs_user;             /*<<< Minimum concurrent hubs as a guest user (default: 0) */
+	int   limit_min_hubs_reg;              /*<<< Minimum concurrent hubs as a registered user (default: 0) */
+	int   limit_min_hubs_op;               /*<<< Minimum concurrent hubs as a operator (or admin) (default: 0) */
+	int   limit_min_share;                 /*<<< Limit minimum share size in megabytes (default: 0) */
+	int   limit_max_share;                 /*<<< Limit maximum share size in megabytes (default: 0) */
+	int   limit_min_slots;                 /*<<< Limit minimum number of upload slots open per user (default: 0) */
+	int   limit_max_slots;                 /*<<< Limit minimum number of upload slots open per user (default: 0) */
+	int   flood_ctl_interval;              /*<<< Time interval in seconds for flood control check. (default: 0) */
+	int   flood_ctl_chat;                  /*<<< Max chat messages allowed in time interval (default: 0) */
+	int   flood_ctl_connect;               /*<<< Max connections requests allowed in time interval (default: 0) */
+	int   flood_ctl_search;                /*<<< Max search requests allowed in time interval (default: 0) */
+	int   flood_ctl_update;                /*<<< Max updates allowed in time interval (default: 0) */
+	int   flood_ctl_extras;                /*<<< Max extra messages allowed in time interval (default: 0) */
+	int   tls_enable;                      /*<<< Enable SSL/TLS support (default: 0) */
+	int   tls_require;                     /*<<< If SSL/TLS enabled, should it be required (default: 0) (default: 0) */
+	char* tls_require_redirect_addr;       /*<<< A redirect address in case a client connects using "adc://" when "adcs://" is required. (default: ) */
+	char* tls_certificate;                 /*<<< Certificate file (default: ) */
+	char* tls_private_key;                 /*<<< Private key file (default: ) */
+	char* file_motd;                       /*<<< File containing the 'message of the day (default: ) */
+	char* file_acl;                        /*<<< File containing access control lists (default: ) */
+	char* file_rules;                      /*<<< File containing hub rules (default: ) */
+	char* msg_hub_full;                    /*<<< "Hub is full" */
+	char* msg_hub_disabled;                /*<<< "Hub is disabled" */
+	char* msg_hub_registered_users_only;   /*<<< "Hub is for registered users only" */
+	char* msg_inf_error_nick_missing;      /*<<< "No nickname given" */
+	char* msg_inf_error_nick_multiple;     /*<<< "Multiple nicknames given" */
+	char* msg_inf_error_nick_invalid;      /*<<< "Nickname is invalid" */
+	char* msg_inf_error_nick_long;         /*<<< "Nickname too long" */
+	char* msg_inf_error_nick_short;        /*<<< "Nickname too short" */
+	char* msg_inf_error_nick_spaces;       /*<<< "Nickname cannot start with spaces" */
+	char* msg_inf_error_nick_bad_chars;    /*<<< "Nickname contains invalid characters" */
+	char* msg_inf_error_nick_not_utf8;     /*<<< "Nickname is not valid UTF-8" */
+	char* msg_inf_error_nick_taken;        /*<<< "Nickname is already in use" */
+	char* msg_inf_error_nick_restricted;   /*<<< "Nickname cannot be used on this hub" */
+	char* msg_inf_error_cid_invalid;       /*<<< "CID is not valid" */
+	char* msg_inf_error_cid_missing;       /*<<< "CID is not specified" */
+	char* msg_inf_error_cid_taken;         /*<<< "CID is taken" */
+	char* msg_inf_error_pid_missing;       /*<<< "PID is not specified" */
+	char* msg_inf_error_pid_invalid;       /*<<< "PID is invalid" */
+	char* msg_ban_permanently;             /*<<< "Banned permanently" */
+	char* msg_ban_temporarily;             /*<<< "Banned temporarily" */
+	char* msg_auth_invalid_password;       /*<<< "Password is wrong" */
+	char* msg_auth_user_not_found;         /*<<< "User not found in password database" */
+	char* msg_error_no_memory;             /*<<< "No memory" */
+	char* msg_user_share_size_low;         /*<<< "User is not sharing enough" */
+	char* msg_user_share_size_high;        /*<<< "User is sharing too much" */
+	char* msg_user_slots_low;              /*<<< "User have too few upload slots." */
+	char* msg_user_slots_high;             /*<<< "User have too many upload slots." */
+	char* msg_user_hub_limit_low;          /*<<< "User is on too few hubs." */
+	char* msg_user_hub_limit_high;         /*<<< "User is on too many hubs." */
+	char* msg_user_flood_chat;             /*<<< "Chat flood detected, messages are dropped." */
+	char* msg_user_flood_connect;          /*<<< "Connect flood detected, connection refused." */
+	char* msg_user_flood_search;           /*<<< "Search flood detected, search is stopped." */
+	char* msg_user_flood_update;           /*<<< "Update flood detected." */
+	char* msg_user_flood_extras;           /*<<< "Flood detected." */
+	char* msg_proto_no_common_hash;        /*<<< "No common hash algorithm." */
+	char* msg_proto_obsolete_adc0;         /*<<< "Client is using an obsolete ADC protocol version." */
+};
+

src/core/hub.h

@@ -0,0 +1,378 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_HUB_H
+#define HAVE_UHUB_HUB_H
+
+enum status_message
+{
+	status_msg_hub_full                  = -1,  /* hub is full */
+	status_msg_hub_disabled              = -2,  /* hub is disabled */
+	status_msg_hub_registered_users_only = -3,  /* hub is for registered users only */
+	status_msg_inf_error_nick_missing    = -4,  /* no nickname given */
+	status_msg_inf_error_nick_multiple   = -5,  /* multiple nicknames given */
+	status_msg_inf_error_nick_invalid    = -6,  /* generic/unkown */
+	status_msg_inf_error_nick_long       = -7,  /* nickname too long */
+	status_msg_inf_error_nick_short      = -8,  /* nickname too short */
+	status_msg_inf_error_nick_spaces     = -9,  /* nickname cannot start with spaces */
+	status_msg_inf_error_nick_bad_chars  = -10, /* nickname contains chars below ascii 32 */
+	status_msg_inf_error_nick_not_utf8   = -11, /* nickname is not valid utf8 */
+	status_msg_inf_error_nick_taken      = -12, /* nickname is in use */
+	status_msg_inf_error_nick_restricted = -13, /* nickname cannot be used on this hub */
+	status_msg_inf_error_cid_invalid     = -14, /* CID is not valid (generic error) */
+	status_msg_inf_error_cid_missing     = -15, /* CID is not specified */
+	status_msg_inf_error_cid_taken       = -16, /* CID is taken (already logged in?). */
+	status_msg_inf_error_pid_missing     = -17, /* PID is not specified */
+	status_msg_inf_error_pid_invalid     = -18, /* PID is invalid */
+	status_msg_ban_permanently           = -19, /* Banned permanently */
+	status_msg_ban_temporarily           = -20, /* Banned temporarily */
+	status_msg_auth_invalid_password     = -21, /* Password is wrong */
+	status_msg_auth_user_not_found       = -22, /* User not found in password database */
+	status_msg_error_no_memory           = -23, /* Hub is out of memory */
+
+	status_msg_user_share_size_low       = -40, /* User is not sharing enough. */
+	status_msg_user_share_size_high      = -41, /* User is sharing too much. */
+	status_msg_user_slots_low            = -42, /* User has too few slots open. */
+	status_msg_user_slots_high           = -43, /* User has too many slots open. */
+	status_msg_user_hub_limit_low        = -44, /* Use is on too few hubs. */
+	status_msg_user_hub_limit_high       = -45, /* Use is on too many hubs. */
+
+	status_msg_proto_no_common_hash      = -50, /* No common hash algorithms */
+	status_msg_proto_obsolete_adc0       = -51, /* Client is using an obsolete protocol version */
+	
+
+};
+
+
+enum hub_state
+{
+	hub_status_uninitialized = 0, /**<<<"Hub is uninitialized" */
+	hub_status_running       = 1, /**<<<"Hub is running (normal operation)" */
+	hub_status_restart       = 2, /**<<<"Hub is restarting (re-reading configuration, etc)" */
+	hub_status_shutdown      = 3, /**<<<"Hub is shutting down, but not yet stopped. */
+	hub_status_stopped       = 4, /**<<<"Hub is stopped (Pretty much the same as initialized) */
+	hub_status_disabled      = 5, /**<<<"Hub is disabled (Running, but not accepting users) */
+};
+
+/**
+ * Always updated each minute.
+ */
+struct hub_stats
+{
+	size_t net_tx;
+	size_t net_rx;
+	size_t net_tx_peak;
+	size_t net_rx_peak;
+	size_t net_tx_total;
+	size_t net_rx_total;
+};
+
+struct hub_logout_info
+{
+	time_t time;
+	char cid[MAX_CID_LEN+1];
+	char nick[MAX_NICK_LEN+1];
+	struct ip_addr_encap addr;
+	enum user_quit_reason reason;
+};
+
+struct hub_info
+{
+	struct net_connection* server;
+	struct linked_list* server_alt_ports;
+	struct hub_stats stats;
+	struct event_queue* queue;
+	struct hub_config* config;
+	struct hub_user_manager* users;
+	struct acl_handle* acl;
+	struct adc_message* command_info;    /* The hub's INF command */
+	struct adc_message* command_support; /* The hub's SUP command */
+	struct adc_message* command_motd;    /* The message of the day */
+	struct adc_message* command_rules;   /* The hub rules */
+	struct adc_message* command_banner;  /* The default welcome message */
+	time_t tm_started;
+	int status;
+	char* recvbuf; /* Global receive buffer */
+	char* sendbuf; /* Global send buffer */
+
+	struct linked_list* chat_history;    /* Chat history */
+	struct linked_list* logout_info;     /* Log of people logging out. */
+
+#ifdef SSL_SUPPORT
+	SSL_METHOD* ssl_method;
+	SSL_CTX* ssl_ctx;
+#endif /*  SSL_SUPPORT */
+};
+
+/**
+ * This is the message pre-routing centre.
+ *
+ * Any message coming in to the hub comes through here first,
+ * and will be routed further if valid.
+ *
+ * @return 0 on success, -1 on error
+ */
+extern int hub_handle_message(struct hub_info* hub, struct hub_user* u, const char* message, size_t length);
+
+/**
+ * Handle protocol support/subscription messages received clients.
+ *
+ * @return 0 on success, -1 on error
+ */
+extern int hub_handle_support(struct hub_info* hub, struct hub_user* u, struct adc_message* cmd);
+
+/**
+ * Handle password messages received from clients.
+ *
+ * @return 0 on success, -1 on error
+ */
+extern int hub_handle_password(struct hub_info* hub, struct hub_user* u, struct adc_message* cmd);
+
+/**
+ * Handle chat messages received from clients.
+ * @return 0 on success, -1 on error.
+ */
+extern int hub_handle_chat_message(struct hub_info* hub, struct hub_user* u, struct adc_message* cmd);
+
+/**
+ * Add a chat message to the chat history
+ */
+extern void hub_chat_history_add(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd);
+
+/**
+ * Clear the chat history.
+ */
+extern void hub_chat_history_clear(struct hub_info* hub);
+
+/**
+ * Used internally by hub_handle_info
+ * @return 1 if nickname is OK, or 0 if nickname is not accepted.
+ */
+extern int  hub_handle_info_check_nick(struct hub_info* hub, struct hub_user* u, struct adc_message* cmd);
+
+/**
+ * Used internally by hub_handle_info
+ * @return 1 if CID/PID is OK, or 0 if not valid.
+ */
+extern int  hub_handle_info_check_cid(struct hub_info* hub, struct hub_user* u, struct adc_message* cmd);
+
+/**
+ * Send the support line for the hub to a particular user.
+ * Only used during the initial handshake.
+ */
+extern void hub_send_support(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Send a message assigning a SID for a user.
+ * This is only sent after hub_send_support() during initial handshake.
+ */
+extern void hub_send_sid(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Send a 'ping' message to user.
+ */
+extern void hub_send_ping(struct hub_info* hub, struct hub_user* user);
+
+/**
+ * Send a message containing hub information to a particular user.
+ * This is sent during user connection, but can safely be sent at any
+ * point later.
+ */
+extern void hub_send_hubinfo(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Send handshake. This basically calls
+ * hub_send_support() and hub_send_sid()
+ */
+extern void hub_send_handshake(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Send a welcome message containing the message of the day to 
+ * one particular user. This can be sent in any point in time.
+ * @return 1 if the motd were sent.
+ */
+extern int hub_send_motd(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Send the rules if configured.
+ * @return 1 if the rules were sent.
+ */
+extern int hub_send_rules(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Send a password challenge to a user.
+ * This is only used if the user tries to access the hub using a
+ * password protected nick name.
+ */
+extern void hub_send_password_challenge(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Sends a status_message to a user.
+ */
+extern void hub_send_status(struct hub_info*, struct hub_user* user, enum status_message msg, enum msg_status_level level);
+
+/**
+ * Warn user about flooding.
+ */
+extern void hub_send_flood_warning(struct hub_info*, struct hub_user* user, const char* message);
+
+/**
+ * Allocates memory, initializes the hub based on the configuration,
+ * and returns a hub handle.
+ * This hub handle must be passed to hub_shutdown_service() in order to cleanup before exiting.
+ *
+ * @return a pointer to the hub info.
+ */
+extern struct hub_info* hub_start_service(struct hub_config* config);
+
+/**
+ * This shuts down the hub.
+ */
+extern void hub_shutdown_service(struct hub_info* hub);
+
+/**
+ * This configures the hub.
+ */
+extern void hub_set_variables(struct hub_info* hub, struct acl_handle* acl);
+
+/**
+ * This frees the configuration of the hub.
+ */
+extern void hub_free_variables(struct hub_info* hub);
+
+/**
+ * Returns a string for the given status_message (See enum status_message).
+ */
+extern const char* hub_get_status_message(struct hub_info* hub, enum status_message msg);
+extern const char* hub_get_status_message_log(struct hub_info* hub, enum status_message msg);
+
+/**
+ * Returns the number of logged in users on the hub.
+ */
+extern size_t hub_get_user_count(struct hub_info* hub);
+
+/**
+ * Returns the maximum number of allowed users on the hub.
+ */
+extern size_t hub_get_max_user_count(struct hub_info* hub);
+
+/**
+ * Returns the accumulated shared size for all logged in
+ * users on the hub.
+ */
+extern uint64_t hub_get_shared_size(struct hub_info* hub);
+
+/**
+ * Returns the accumulated number of files for all logged
+ * in users on the hub.
+ */
+extern uint64_t hub_get_shared_files(struct hub_info* hub);
+
+/**
+ * Returns the minimal share size limit as enforced by
+ * this hub's configuration.
+ */
+extern uint64_t hub_get_min_share(struct hub_info* hub);
+
+/**
+ * Returns the minimal share size limit as enforced by
+ * this hub's configuration.
+ */
+extern uint64_t hub_get_max_share(struct hub_info* hub);
+
+/**
+ * Returns the minimum upload slot limit as enforced by
+ * this hub's configuration.
+ * Users with fewer slots in total will not be allowed
+ * to enter the hub.
+ * @return limit or 0 if no limit.
+ */
+extern size_t hub_get_min_slots(struct hub_info* hub);
+
+/**
+ * Returns the maximum upload slot limit as enforced by
+ * this hub's configuration.
+ * Users with more allowed upload slots will not be
+ * allowed to enter the hub.
+ * @return limit or 0 if no limit.
+ */
+extern size_t hub_get_max_slots(struct hub_info* hub);
+
+/**
+ * Returns the maximum number of hubs a user can
+ * be logged in to simultaneously as a regular user (guest).
+ * Users on more hubs will not be allowed to stay on this hub.
+ * @return limit or 0 if no limit.
+ */
+extern size_t hub_get_max_hubs_user(struct hub_info* hub);
+extern size_t hub_get_min_hubs_user(struct hub_info* hub);
+
+/**
+ * Returns the maximum number of hubs a user can
+ * be logged in to simultaneously as a registered user (password required).
+ * Users on more hubs will not be allowed to stay on this hub.
+ * @return limit or 0 if no limit.
+ */
+extern size_t hub_get_max_hubs_reg(struct hub_info* hub);
+extern size_t hub_get_min_hubs_reg(struct hub_info* hub);
+
+/**
+ * Returns the maximum number of hubs a user can
+ * be logged in to simultaneously as an operator.
+ * Users who are operator on more than this amount of hubs
+ * will not be allowed to stay on this hub.
+ * @return limit or 0 if no limit.
+ */
+extern size_t hub_get_max_hubs_op(struct hub_info* hub);
+extern size_t hub_get_min_hubs_op(struct hub_info* hub);
+
+/**
+ * Returns the maximum number of hubs a user can
+ * be logged in to simultaneously regardless of the type of user.
+ */
+extern size_t hub_get_max_hubs_total(struct hub_info* hub);
+
+/**
+ * Schedule runslice.
+ */
+extern void hub_schedule_runslice(struct hub_info* hub);
+
+/**
+ * Run event loop.
+ */
+extern void hub_event_loop(struct hub_info* hub);
+
+/**
+ * Schedule destroying a user.
+ */
+extern void hub_schedule_destroy_user(struct hub_info* hub, struct hub_user* user);
+
+/**
+ * Disconnect a user from the hub.
+ */
+extern void hub_disconnect_user(struct hub_info* hub, struct hub_user* user, int reason);
+
+/**
+ * Log a user logging out.
+ */
+extern void hub_logout_log(struct hub_info* hub, struct hub_user* user);
+
+
+#endif /* HAVE_UHUB_HUB_H */
+

src/core/hubevent.c

@@ -0,0 +1,114 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+static void log_user_login(struct hub_user* u)
+{
+	const char* cred = get_user_credential_string(u->credentials);
+	const char* addr = user_get_address(u);
+	LOG_USER("LoginOK     %s/%s %s \"%s\" (%s) \"%s\"", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, cred, u->user_agent);
+}
+
+static void log_user_login_error(struct hub_user* u, enum status_message msg)
+{
+	const char* addr = user_get_address(u);
+	const char* message = hub_get_status_message_log(u->hub, msg);
+	LOG_USER("LoginError  %s/%s %s \"%s\" (%s) \"%s\"", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, message, u->user_agent);
+}
+
+static void log_user_update_error(struct hub_user* u, enum status_message msg)
+{
+	const char* addr = user_get_address(u);
+	const char* message = hub_get_status_message_log(u->hub, msg);
+	LOG_USER("UpdateError %s/%s %s \"%s\" (%s) \"%s\"", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, message, u->user_agent);
+}
+
+static void log_user_logout(struct hub_user* u, const char* message)
+{
+	const char* addr = user_get_address(u);
+	LOG_USER("Logout      %s/%s %s \"%s\" (%s)", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, message);
+}
+
+static void log_user_nick_change(struct hub_user* u, const char* nick)
+{
+	const char* addr = user_get_address(u);
+	LOG_USER("NickChange  %s/%s %s \"%s\" -> \"%s\"", sid_to_string(u->id.sid), u->id.cid, addr, u->id.nick, nick);
+}
+
+
+/* Send MOTD, do logging etc */
+void on_login_success(struct hub_info* hub, struct hub_user* u)
+{
+	/* Send user list of all existing users */
+	if (!uman_send_user_list(hub, u))
+		return;
+
+	/* Mark as being in the normal state, and add user to the user list */
+	user_set_state(u, state_normal);
+	uman_add(hub, u);
+
+	/* Print log message */
+	log_user_login(u);
+
+	/* Announce new user to all connected users */
+	if (user_is_logged_in(u))
+		route_info_message(hub, u);
+	
+	/* Send message of the day (if any) */
+	if (user_is_logged_in(u)) /* Previous send() can fail! */
+		hub_send_motd(hub, u);
+
+	/* Send message of the day (if any) */
+	if (user_is_logged_in(u)) /* Previous send() can fail! */
+		hub_send_rules(hub, u);
+
+	/* reset timeout */
+	net_con_clear_timeout(u->connection);
+}
+
+void on_login_failure(struct hub_info* hub, struct hub_user* u, enum status_message msg)
+{
+	log_user_login_error(u, msg);
+	hub_send_status(hub, u, msg, status_level_fatal);
+	hub_disconnect_user(hub, u, quit_logon_error);
+}
+
+void on_update_failure(struct hub_info* hub, struct hub_user* u, enum status_message msg)
+{
+	log_user_update_error(u, msg);
+	hub_send_status(hub, u, msg, status_level_fatal);
+	hub_disconnect_user(hub, u, quit_update_error);
+}
+
+void on_nick_change(struct hub_info* hub, struct hub_user* u, const char* nick)
+{
+	if (user_is_logged_in(u))
+	{
+		log_user_nick_change(u, nick);
+	}
+}
+
+void on_logout_user(struct hub_info* hub, struct hub_user* user)
+{
+	const char* reason = user_get_quit_reason_string(user->quit_reason);
+	log_user_logout(user, reason);
+	hub_logout_log(hub, user);
+}
+

src/core/hubevent.h

@@ -0,0 +1,46 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_HUB_EVENT_H
+#define HAVE_UHUB_HUB_EVENT_H
+
+/**
+ * This event is triggered whenever a user successfully logs in to the hub.
+ */
+extern void on_login_success(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * This event is triggered whenever a user failed to log in to the hub.
+ */
+extern void on_login_failure(struct hub_info* hub, struct hub_user* u, enum status_message msg);
+extern void on_update_failure(struct hub_info* hub, struct hub_user* u, enum status_message msg);
+
+/**
+ * This event is triggered whenever a previously logged in user leaves the hub.
+ */
+extern void on_logout_user(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * This event is triggered whenever a user changes his/her nickname.
+ */
+extern void on_nick_change(struct hub_info* hub, struct hub_user* u, const char* nick);
+
+
+#endif /* HAVE_UHUB_HUB_EVENT_H */
+

src/core/hubio.c

@@ -0,0 +1,173 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+#include "hubio.h"
+
+#ifdef DEBUG_SENDQ
+static void debug_msg(const char* prefix, struct adc_message* msg)
+{
+	size_t n;
+	char* buf = strdup(msg->cache);
+	for (n = 0; n < msg->length; n++)
+	{
+		if (buf[n] == '\r' || buf[n] == '\n')
+			buf[n] = '_';
+	}
+	LOG_TRACE("%s: [%s] (%d bytes)", prefix, buf, (int) msg->length);
+	free(buf);
+}
+#endif
+
+struct hub_recvq* hub_recvq_create()
+{
+	struct hub_recvq* q = hub_malloc_zero(sizeof(struct hub_recvq));
+	return q;
+}
+
+void hub_recvq_destroy(struct hub_recvq* q)
+{
+	if (q)
+	{
+		hub_free(q->buf);
+		hub_free(q);
+	}
+}
+
+size_t hub_recvq_get(struct hub_recvq* q, void* buf, size_t bufsize)
+{
+	assert(bufsize >= q->size);
+	if (q->size)
+	{
+		size_t n = q->size;
+		memcpy(buf, q->buf, n);
+		hub_free(q->buf);
+		q->buf = 0;
+		q->size = 0;
+		return n;
+	}
+	return 0;
+}
+
+size_t hub_recvq_set(struct hub_recvq* q, void* buf, size_t bufsize)
+{
+	if (q->buf)
+	{
+		hub_free(q->buf);
+		q->buf = 0;
+		q->size = 0;
+	}
+	
+	if (!bufsize)
+	{
+		return 0;
+	}
+
+	q->buf = hub_malloc(bufsize);
+	if (!q->buf)
+		return 0;
+
+	q->size = bufsize;
+	memcpy(q->buf, buf, bufsize);
+	return bufsize;
+}
+
+
+struct hub_sendq* hub_sendq_create()
+{
+	struct hub_sendq* q = hub_malloc_zero(sizeof(struct hub_sendq));
+	if (!q)
+		return 0;
+
+	q->queue = list_create();
+	if (!q->queue)
+	{
+		hub_free(q);
+		return 0;
+	}
+
+	return q;
+}
+
+static void clear_send_queue_callback(void* ptr)
+{
+	adc_msg_free((struct adc_message*) ptr);
+}
+
+void hub_sendq_destroy(struct hub_sendq* q)
+{
+	if (q)
+	{
+		list_clear(q->queue, &clear_send_queue_callback);
+		list_destroy(q->queue);
+		hub_free(q);
+	}
+}
+
+void hub_sendq_add(struct hub_sendq* q, struct adc_message* msg_)
+{
+	struct adc_message* msg = adc_msg_incref(msg_);
+#ifdef DEBUG_SENDQ
+	debug_msg("hub_sendq_add", msg);
+#endif
+	assert(msg->cache && *msg->cache);
+	list_append(q->queue, msg);
+	q->size += msg->length;
+}
+
+void hub_sendq_remove(struct hub_sendq* q, struct adc_message* msg)
+{
+#ifdef DEBUG_SENDQ
+	debug_msg("hub_sendq_remove", msg);
+#endif
+	list_remove(q->queue, msg);
+	q->size  -= msg->length;
+	adc_msg_free(msg);
+	q->offset = 0;
+}
+
+int hub_sendq_send(struct hub_sendq* q, struct hub_user* user)
+{
+	int ret;
+	struct adc_message* msg = list_get_first(q->queue);
+	if (!msg) return 0;
+	assert(msg->cache && *msg->cache);
+	ret = net_con_send(user->connection, msg->cache + q->offset, msg->length - q->offset);
+
+	if (ret > 0)
+	{
+		q->offset += ret;
+		if (msg->length - q->offset > 0)
+			return 0;
+
+		hub_sendq_remove(q, msg);
+		return 1;
+	}
+	return ret;
+}
+
+int hub_sendq_is_empty(struct hub_sendq* q)
+{
+	return (q->size - q->offset) == 0;
+}
+
+size_t hub_sendq_get_bytes(struct hub_sendq* q)
+{
+	return q->size - q->offset;
+}

src/core/hubio.h

@@ -0,0 +1,106 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_HUB_IO_H
+#define HAVE_UHUB_HUB_IO_H
+
+struct adc_message;
+struct linked_list;
+typedef int (*hub_recvq_write)(void* desc, const void* buf, size_t len);
+typedef int (*hub_recvq_read)(void* desc, void* buf, size_t len);
+
+struct hub_sendq
+{
+	size_t               size;      /** Size of send queue (in bytes, not messages) */
+	size_t               offset;    /** Queue byte offset in the first message. Should be 0 unless a partial write. */
+#ifdef SSL_SUPPORT
+	size_t               last_send; /** When using SSL, one have to send the exact same buffer and length if a write cannot complete. */
+#endif
+	struct linked_list*  queue;     /** List of queued messages */
+};
+
+struct hub_recvq
+{
+	char* buf;
+	size_t size;
+};
+
+/**
+ * Create a send queue
+ */
+extern struct hub_sendq* hub_sendq_create();
+
+/**
+ * Destroy a send queue, and delete any queued messages.
+ */
+extern void hub_sendq_destroy(struct hub_sendq*);
+
+/**
+ * Add a message to the send queue.
+ */
+extern void hub_sendq_add(struct hub_sendq*, struct adc_message* msg);
+
+/**
+ * Process the send queue, and send as many messages as possible.
+ * @returns -1 on error, 0 if unable to send more, 1 if more can be sent.
+ */
+extern int  hub_sendq_send(struct hub_sendq*, struct hub_user*);
+
+/**
+ * @returns 1 if send queue is empty, 0 otherwise.
+ */
+extern int hub_sendq_is_empty(struct hub_sendq*);
+
+/**
+ * @returns the number of bytes remaining to be sent in the queue.
+ */
+extern size_t hub_sendq_get_bytes(struct hub_sendq*);
+
+
+
+/**
+ * Create a receive queue.
+ */
+extern struct hub_recvq* hub_recvq_create();
+
+/**
+ * Destroy a receive queue.
+ */
+extern void hub_recvq_destroy(struct hub_recvq*);
+
+/**
+ * Gets the buffer, copies it into buf and deallocates it.
+ * NOTE: bufsize *MUST* be larger than the buffer, otherwise it asserts.
+ * @return the number of bytes copied into buf.
+ */
+extern size_t hub_recvq_get(struct hub_recvq*, void* buf, size_t bufsize);
+
+/**
+ * Sets the buffer
+ */
+extern size_t hub_recvq_set(struct hub_recvq*, void* buf, size_t bufsize);
+
+/**
+ * @return 1 if size is zero, 0 otherwise.
+ */
+extern int hub_recvq_is_empty(struct hub_recvq* buf);
+
+
+
+#endif /* HAVE_UHUB_HUB_IO_H */

src/core/inf.c

@@ -0,0 +1,801 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+/*
+ * These flags can only be set by the hub.
+ * Make sure we don't allow clients to specify these themselves.
+ *
+ * NOTE: Some of them are legacy ADC flags and no longer used, these
+ * should be removed at some point in the future when functionality no
+ * longer depend on them.
+ */
+static void remove_server_restricted_flags(struct adc_message* cmd)
+{
+	adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_CLIENT_TYPE); /* Client type flag (CT, obsoletes BO, RG, OP, HU) */
+	adc_msg_remove_named_argument(cmd, "BO"); /* Obsolete: bot flag (CT) */
+	adc_msg_remove_named_argument(cmd, "RG"); /* Obsolete: registered user flag (CT) */
+	adc_msg_remove_named_argument(cmd, "OP"); /* Obsolete: operator flag (CT) */
+	adc_msg_remove_named_argument(cmd, "HU"); /* Obsolete: hub flag (CT) */
+	adc_msg_remove_named_argument(cmd, "HI"); /* Obsolete: hidden user flag */
+	adc_msg_remove_named_argument(cmd, "TO"); /* Client to client token - should not be seen here */
+	adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_REFERER);
+}
+
+static int set_feature_cast_supports(struct hub_user* u, struct adc_message* cmd)
+{
+	char *it, *tmp;
+
+	if (adc_msg_has_named_argument(cmd, ADC_INF_FLAG_SUPPORT))
+	{
+		tmp = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_SUPPORT);
+		if (!tmp)
+			return -1; // FIXME: OOM
+
+		user_clear_feature_cast_support(u);
+
+		it = tmp;
+		while (strlen(it) > 4)
+		{
+			it[4] = 0; /* FIXME: Not really needed */
+			user_set_feature_cast_support(u, it);
+			it = &it[5];
+		}
+
+		if (*it)
+		{
+			user_set_feature_cast_support(u, it);
+		}
+		hub_free(tmp);
+	}
+	return 0;
+}
+
+
+static int check_hash_tiger(const char* cid, const char* pid)
+{
+	char x_pid[64];
+	char raw_pid[64];
+	uint64_t tiger_res[3];
+
+	memset(x_pid, 0, MAX_CID_LEN+1);
+
+	base32_decode(pid, (unsigned char*) raw_pid, MAX_CID_LEN);
+	tiger((uint64_t*) raw_pid, TIGERSIZE, (uint64_t*) tiger_res);
+	base32_encode((unsigned char*) tiger_res, TIGERSIZE, x_pid);
+	x_pid[MAX_CID_LEN] = 0;
+	if (strncasecmp(x_pid, cid, MAX_CID_LEN) == 0)
+		return 1;
+	return 0;
+}
+
+
+/*
+ * FIXME: Only works for tiger hash. If a client doesnt support tiger we cannot let it in!
+ */
+static int check_cid(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	size_t pos;
+	char* cid = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_CLIENT_ID);
+	char* pid = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_PRIVATE_ID);
+
+	if (!cid || !pid)
+	{
+		hub_free(cid);
+		hub_free(pid);
+		return status_msg_error_no_memory;
+	}
+
+	if (strlen(cid) != MAX_CID_LEN)
+	{
+		hub_free(cid);
+		hub_free(pid);
+		return status_msg_inf_error_cid_invalid;
+	}
+	
+	if (strlen(pid) != MAX_CID_LEN)
+	{
+		hub_free(cid);
+		hub_free(pid);
+		return status_msg_inf_error_pid_invalid;
+	}
+	
+	for (pos = 0; pos < MAX_CID_LEN; pos++)
+	{
+		if (!is_valid_base32_char(cid[pos]))
+		{
+			hub_free(cid);
+			hub_free(pid);
+			return status_msg_inf_error_cid_invalid;
+		}
+
+		if (!is_valid_base32_char(pid[pos]))
+		{
+			hub_free(cid);
+			hub_free(pid);
+			return status_msg_inf_error_pid_invalid;
+		}
+	}
+	
+	if (!check_hash_tiger(cid, pid))
+	{
+		hub_free(cid);
+		hub_free(pid);
+		return status_msg_inf_error_cid_invalid;
+	}
+	
+	/* Set the cid in the user object */
+	memcpy(user->id.cid, cid, MAX_CID_LEN);
+	user->id.cid[MAX_CID_LEN] = 0;
+	
+	hub_free(cid);
+	hub_free(pid);
+	return 0;
+}
+
+
+static int check_required_login_flags(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	int num = 0;
+	
+	num = adc_msg_has_named_argument(cmd, ADC_INF_FLAG_CLIENT_ID);
+	if (num != 1)
+	{
+		if (!num)
+			return status_msg_inf_error_cid_missing;
+		return status_msg_inf_error_cid_invalid;
+	}
+	
+	num = adc_msg_has_named_argument(cmd, ADC_INF_FLAG_PRIVATE_ID);
+	if (num != 1)
+	{
+		if (!num)
+			return status_msg_inf_error_pid_missing;
+		return status_msg_inf_error_pid_invalid;
+	}
+
+	num = adc_msg_has_named_argument(cmd, ADC_INF_FLAG_NICK);
+	if (num != 1)
+	{
+		if (!num)
+			return status_msg_inf_error_nick_missing;
+		return status_msg_inf_error_nick_multiple;
+	}
+	return 0;
+}
+
+
+/**
+ * This will check the ip address of the user, and
+ * remove any wrong address, and replace it with the correct one
+ * as seen by the hub.
+ */
+static int check_network(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	const char* address = user_get_address(user);
+	
+	/* Check for NAT override address */
+	if (acl_is_ip_nat_override(hub->acl, address))
+	{
+		char* client_given_ip = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
+		if (client_given_ip && strcmp(client_given_ip, "0.0.0.0") != 0)
+		{
+			user_set_nat_override(user);
+			adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR);
+			adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_UDP_PORT);
+			hub_free(client_given_ip);
+			return 0;
+		}
+		hub_free(client_given_ip);
+	}
+
+	if (strchr(address, '.'))
+	{
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_UDP_PORT);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
+		adc_msg_add_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR, address);
+	}
+	else if (strchr(address, ':'))
+	{
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_UDP_PORT);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR);
+		adc_msg_add_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR, address);
+	}
+	return 0;
+}
+
+static void strip_network(struct hub_user* user, struct adc_message* cmd)
+{
+	adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_ADDR);
+	adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV6_UDP_PORT);
+	adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
+	adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_UDP_PORT);
+}
+
+static int nick_length_ok(const char* nick)
+{
+	size_t length = strlen(nick);
+	if (length <= 1)
+	{
+		return nick_invalid_short;
+	}
+	
+	if (length > MAX_NICK_LEN)
+	{
+		return nick_invalid_long;
+	}
+	
+	return nick_ok;
+}
+
+
+static int nick_bad_characters(const char* nick)
+{
+	const char* tmp;
+	
+	/* Nick must not start with a space */
+	if (nick[0] == ' ')
+		return nick_invalid_spaces;
+	
+	/* Check for ASCII values below 32 */
+	for (tmp = nick; *tmp; tmp++)
+		if ((*tmp < 32) && (*tmp > 0))
+			return nick_invalid_bad_ascii;
+	
+	return nick_ok;
+}
+
+
+static int nick_is_utf8(const char* nick)
+{
+	/*
+	 * Nick should be valid utf-8, but
+	 * perhaps we should check if the nick is unicode normalized?
+	 */
+	if (!is_valid_utf8(nick))
+		return nick_invalid_bad_utf8;
+	return nick_ok;
+}
+
+
+static int check_nick(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	char* nick;
+	char* tmp;
+	enum nick_status status;
+
+	tmp = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_NICK);
+	if (!tmp) return 0;
+	nick = adc_msg_unescape(tmp);
+	free(tmp); tmp = 0;
+	if (!nick) return 0;
+	
+	status = nick_length_ok(nick);
+	if (status != nick_ok)
+	{
+		hub_free(nick);
+		if (status == nick_invalid_short)
+			return status_msg_inf_error_nick_short;
+		return status_msg_inf_error_nick_long;
+	}
+	
+	status = nick_bad_characters(nick);
+	if (status != nick_ok)
+	{
+		hub_free(nick);
+		if (status == nick_invalid_spaces)
+			return status_msg_inf_error_nick_spaces;
+		return status_msg_inf_error_nick_bad_chars;
+	}
+	
+	status = nick_is_utf8(nick);
+	if (status != nick_ok)
+	{
+		hub_free(nick);
+		return status_msg_inf_error_nick_not_utf8;
+	}
+	
+	if (user_is_connecting(user))
+	{
+		memcpy(user->id.nick, nick, strlen(nick));
+		user->id.nick[strlen(nick)] = 0;
+	}
+	
+	hub_free(nick);
+	return 0;
+}
+
+
+static int check_logged_in(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	struct hub_user* lookup1 = uman_get_user_by_nick(hub, user->id.nick);
+	struct hub_user* lookup2 = uman_get_user_by_cid(hub,  user->id.cid);
+	
+	if (lookup1 == user)
+	{
+		return 0;
+	}
+	
+	if (lookup1 || lookup2)
+	{
+		if (lookup1 == lookup2)
+		{
+			LOG_DEBUG("check_logged_in: exact same user is logged in: %s", user->id.nick);
+			hub_disconnect_user(hub, lookup1, quit_ghost_timeout);
+			return 0;
+		}
+		else
+		{
+			if (lookup1)
+			{
+				LOG_DEBUG("check_logged_in: nickname is in use: %s", user->id.nick);
+				return status_msg_inf_error_nick_taken;
+			}
+			else
+			{
+				LOG_DEBUG("check_logged_in: CID is in use: %s", user->id.cid);
+				return status_msg_inf_error_cid_taken;
+			}
+		}
+	}
+	return 0;
+}
+
+
+/*
+ * It is possible to do user-agent checking here.
+ * But this is not something we want to do, and is deprecated in the ADC specification.
+ * One should rather look at capabilities/features.
+ */
+static int check_user_agent(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	char* ua_encoded = 0;
+	char* ua = 0;
+	
+	/* Get client user agent version */
+	ua_encoded = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_USER_AGENT);
+	if (ua_encoded)
+	{
+		ua = adc_msg_unescape(ua_encoded);
+		if (ua)
+		{
+			memcpy(user->user_agent, ua, MIN(strlen(ua), MAX_UA_LEN));
+			hub_free(ua);
+		}
+	}
+	hub_free(ua_encoded);
+	return 0;
+}
+
+
+static int check_acl(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	if (acl_is_cid_banned(hub->acl, user->id.cid))
+	{
+		return status_msg_ban_permanently;
+	}
+	
+	if (acl_is_user_banned(hub->acl, user->id.nick))
+	{
+		return status_msg_ban_permanently;
+	}
+
+	if (acl_is_user_denied(hub->acl, user->id.nick))
+	{
+		return status_msg_inf_error_nick_restricted;
+	}
+	
+	return 0;
+}
+
+static int check_limits(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	char* arg = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_SHARED_SIZE);
+	if (arg)
+	{
+		int64_t shared_size = atoll(arg);
+		if (shared_size < 0)
+			shared_size = 0;
+
+		if (user_is_logged_in(user))
+		{
+			hub->users->shared_size  -= user->limits.shared_size;
+			hub->users->shared_size  += shared_size;
+		}
+		user->limits.shared_size = shared_size;
+		hub_free(arg);
+		arg = 0;
+	}
+
+	arg = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_SHARED_FILES);
+	if (arg)
+	{
+		ssize_t shared_files = atoll(arg);
+		if (shared_files < 0)
+			shared_files = 0;
+
+		if (user_is_logged_in(user))
+		{
+			hub->users->shared_files -= user->limits.shared_files;
+			hub->users->shared_files += shared_files;
+		}
+		user->limits.shared_files = shared_files;
+		hub_free(arg);
+		arg = 0;
+	}
+
+	arg = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_COUNT_HUB_NORMAL);
+	if (arg)
+	{
+		ssize_t num = atoll(arg);
+		if (num < 0) num = 0;
+		user->limits.hub_count_user = num;
+		hub_free(arg);
+		arg = 0;
+	}
+
+	arg = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_COUNT_HUB_REGISTER);
+	if (arg)
+	{
+		ssize_t num = atoll(arg);
+		if (num < 0) num = 0;
+		user->limits.hub_count_registered = num;
+		hub_free(arg);
+		arg = 0;
+	}
+
+	arg = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_COUNT_HUB_OPERATOR);
+	if (arg)
+	{
+		ssize_t num = atoll(arg);
+		if (num < 0) num = 0;
+		user->limits.hub_count_operator = num;
+		hub_free(arg);
+		arg = 0;
+	}
+	
+	arg = adc_msg_get_named_argument(cmd, ADC_INF_FLAG_UPLOAD_SLOTS);
+	if (arg)
+	{
+		ssize_t num = atoll(arg);
+		if (num < 0) num = 0;
+		user->limits.upload_slots = num;
+		hub_free(arg);
+		arg = 0;
+	}
+
+	/* summarize total slots */
+	user->limits.hub_count_total = user->limits.hub_count_user + user->limits.hub_count_registered + user->limits.hub_count_operator;
+
+	if (!user_is_protected(user))
+	{
+		if (user->limits.shared_size < hub_get_min_share(hub) && hub_get_min_share(hub))
+		{
+			return status_msg_user_share_size_low;
+		}
+
+		if (user->limits.shared_size > hub_get_max_share(hub) && hub_get_max_share(hub))
+		{
+			return status_msg_user_share_size_high;
+		}
+
+		if ((user->limits.hub_count_user           > hub_get_max_hubs_user(hub)  && hub_get_max_hubs_user(hub)) ||
+			(user->limits.hub_count_registered > hub_get_max_hubs_reg(hub)   && hub_get_max_hubs_reg(hub))  ||
+			(user->limits.hub_count_operator   > hub_get_max_hubs_op(hub)    && hub_get_max_hubs_op(hub))   ||
+			(user->limits.hub_count_total      > hub_get_max_hubs_total(hub) && hub_get_max_hubs_total(hub)))
+		{
+			return status_msg_user_hub_limit_high;
+		}
+
+		if ((user->limits.hub_count_user           < hub_get_min_hubs_user(hub)  && hub_get_min_hubs_user(hub)) ||
+			(user->limits.hub_count_registered < hub_get_min_hubs_reg(hub)   && hub_get_min_hubs_reg(hub))  ||
+			(user->limits.hub_count_operator   < hub_get_min_hubs_op(hub)    && hub_get_min_hubs_op(hub)))
+		{
+			return status_msg_user_hub_limit_low;
+		}
+
+		if (user->limits.upload_slots < hub_get_min_slots(hub) && hub_get_min_slots(hub))
+		{
+			return status_msg_user_slots_low;
+		}
+
+		if (user->limits.upload_slots > hub_get_max_slots(hub) && hub_get_max_slots(hub))
+		{
+			return status_msg_user_slots_high;
+		}
+	}
+	return 0;
+}
+
+/*
+ * Set the expected credentials, and returns 1 if authentication is needed,
+ * or 0 if not.
+ * If the hub is configured to allow only registered users and the user
+ * is not recognized this will return 1.
+ */
+static int set_credentials(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	int ret = 0;
+	struct hub_user_access_info* info = acl_get_access_info(hub->acl, user->id.nick);
+	
+	if (info)
+	{
+		user->credentials = info->status;
+		ret = 1;
+	}
+	else
+	{
+		user->credentials = cred_guest;
+	}
+	
+	switch (user->credentials)
+	{
+		case cred_none:
+			break;
+			
+		case cred_bot:
+			adc_msg_add_argument(cmd, ADC_INF_FLAG_CLIENT_TYPE ADC_CLIENT_TYPE_BOT);
+			break;
+			
+		case cred_guest:
+			/* Nothing to be added to the info message */
+			break;
+
+		case cred_user:
+			adc_msg_add_argument(cmd, ADC_INF_FLAG_CLIENT_TYPE ADC_CLIENT_TYPE_REGISTERED_USER);
+			break;
+
+		case cred_operator:
+			adc_msg_add_argument(cmd, ADC_INF_FLAG_CLIENT_TYPE ADC_CLIENT_TYPE_OPERATOR);
+			break;
+			
+		case cred_super:
+			adc_msg_add_argument(cmd, ADC_INF_FLAG_CLIENT_TYPE ADC_CLIENT_TYPE_SUPER_USER);
+			break;
+
+		case cred_admin:
+			adc_msg_add_argument(cmd, ADC_INF_FLAG_CLIENT_TYPE ADC_CLIENT_TYPE_ADMIN);
+			break;
+
+		case cred_link:
+			break;
+ 	}
+	
+	return ret;
+}
+
+
+
+static int check_is_hub_full(struct hub_info* hub, struct hub_user* user)
+{
+	/*
+	 * If hub is full, don't let users in, but we still want to allow
+	 * operators and admins to enter the hub.
+	 */
+	if (hub->config->max_users && hub->users->count >= hub->config->max_users && !user_is_protected(user))
+	{
+		return 1;
+	}
+	return 0;
+}
+
+
+static int check_registered_users_only(struct hub_info* hub, struct hub_user* user)
+{
+	if (hub->config->registered_users_only && !user_is_registered(user))
+	{
+		return 1;
+	}
+	return 0;
+}
+
+static int hub_handle_info_common(struct hub_user* user, struct adc_message* cmd)
+{
+	/* Remove server restricted flags */
+	remove_server_restricted_flags(cmd);
+	
+	/* Update/set the feature cast flags. */
+	set_feature_cast_supports(user, cmd);
+	
+	return 0;
+}
+
+static int hub_handle_info_low_bandwidth(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	if (hub->config->low_bandwidth_mode)
+	{
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_USER_AGENT);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_SHARED_FILES);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_COUNT_HUB_NORMAL);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_COUNT_HUB_REGISTER);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_COUNT_HUB_OPERATOR);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_UPLOAD_SPEED);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_DOWNLOAD_SPEED);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_AUTO_SLOTS);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_AUTO_SLOTS_MAX);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_AWAY);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_DESCRIPTION);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_EMAIL);
+	}
+	
+	return 0;
+}
+
+#define INF_CHECK(FUNC, HUB, USER, CMD) \
+	do { \
+		int ret = FUNC(HUB, USER, CMD); \
+		if (ret < 0) \
+			return ret; \
+	} while(0)
+
+static int hub_perform_login_checks(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	/* Make syntax checks.  */
+	INF_CHECK(check_required_login_flags, hub, user, cmd);
+	INF_CHECK(check_cid,                  hub, user, cmd);
+	INF_CHECK(check_nick,                 hub, user, cmd);
+	INF_CHECK(check_network,              hub, user, cmd);
+	INF_CHECK(check_user_agent,           hub, user, cmd);
+	INF_CHECK(check_acl,                  hub, user, cmd);
+	INF_CHECK(check_logged_in,            hub, user, cmd);
+	return 0;
+}
+
+/**
+ * Perform additional INF checks used at time of login.
+ *
+ * @return 0 if success, <0 if error, >0 if authentication needed.
+ */
+int hub_handle_info_login(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
+{
+	int code = 0;
+
+	INF_CHECK(hub_perform_login_checks, hub, user, cmd);
+
+	/* Private ID must never be broadcasted - drop it! */
+	adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_PRIVATE_ID);
+
+	code = set_credentials(hub, user, cmd);
+
+	/* Note: this must be done *after* set_credentials. */
+	if (check_is_hub_full(hub, user))
+	{
+		return status_msg_hub_full;
+	}
+	
+	if (check_registered_users_only(hub, user))
+	{
+		return status_msg_hub_registered_users_only;
+	}
+	
+	INF_CHECK(check_limits, hub, user, cmd);
+	
+	/* strip off stuff if low_bandwidth_mode is enabled */
+	hub_handle_info_low_bandwidth(hub, user, cmd);
+	
+	/* Set initial user info */
+	user_set_info(user, cmd);
+	
+	return code;
+}
+
+/*
+ * If user is in the connecting state, we need to do fairly
+ * strict checking of all arguments.
+ * This means we disconnect users when they provide invalid data
+ * during the login sequence.
+ * When users are merely updating their data after successful login
+ * we can just ignore any invalid data and not broadcast it.
+ *
+ * The data we need to check is:
+ * - nick name (valid, not taken, etc)
+ * - CID/PID (valid, not taken, etc).
+ * - IP addresses (IPv4 and IPv6)
+ */
+int hub_handle_info(struct hub_info* hub, struct hub_user* user, const struct adc_message* cmd_unmodified)
+{
+	int ret;
+	struct adc_message* cmd = adc_msg_copy(cmd_unmodified);
+	if (!cmd) return -1; /* OOM */
+
+	cmd->priority = 1;
+
+	hub_handle_info_common(user, cmd);
+
+	/* If user is logging in, perform more checks,
+	   otherwise only a few things need to be checked.
+	 */
+	if (user_is_connecting(user))
+	{
+		/*
+		 * Don't allow the user to send multiple INF messages in this stage!
+		 * Since that can have serious side-effects.
+		 */
+		if (user->info)
+		{
+			adc_msg_free(cmd);
+			return 0;
+		}
+
+		ret = hub_handle_info_login(hub, user, cmd);
+		if (ret < 0)
+		{
+			on_login_failure(hub, user, ret);
+			adc_msg_free(cmd);
+			return -1;
+		}
+		else
+		{
+			/* Post a message, the user has joined */
+			struct event_data post;
+			memset(&post, 0, sizeof(post));
+			post.id    = UHUB_EVENT_USER_JOIN;
+			post.ptr   = user;
+			post.flags = ret; /* 0 - all OK, 1 - need authentication */
+			event_queue_post(hub->queue, &post);
+			adc_msg_free(cmd);
+			return 0;
+		}
+	}
+	else
+	{
+		/* These must not be allowed updated, let's remove them! */
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_PRIVATE_ID);
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_CLIENT_ID);
+
+		/*
+		 * If the nick is not accepted, do not relay it.
+		 * Otherwise, the nickname will be updated.
+		 */
+		if (adc_msg_has_named_argument(cmd, ADC_INF_FLAG_NICK))
+		{
+#ifdef ALLOW_CHANGE_NICK
+			if (!check_nick(hub, user, cmd))
+#endif
+				adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_NICK);
+		}
+
+		ret = check_limits(hub, user, cmd);
+		if (ret < 0)
+		{
+			on_update_failure(hub, user, ret);
+			adc_msg_free(cmd);
+			return -1;
+		}
+
+		strip_network(user, cmd);
+		hub_handle_info_low_bandwidth(hub, user, cmd);
+
+		user_update_info(user, cmd);
+
+		if (!adc_msg_is_empty(cmd))
+		{
+			route_message(hub, user, cmd);
+		}
+
+		adc_msg_free(cmd);
+	}
+
+	return 0;
+}
+
+

src/core/inf.h

@@ -0,0 +1,54 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_INF_PARSER_H
+#define HAVE_UHUB_INF_PARSER_H
+
+enum nick_status
+{
+	nick_ok                =  0,
+	nick_invalid_short     = -1,
+	nick_invalid_long      = -2,
+	nick_invalid_spaces    = -3,
+	nick_invalid_bad_ascii = -4,
+	nick_invalid_bad_utf8  = -5,
+	nick_invalid           = -6, /* some unknown reason */
+	nick_not_allowed       = -7, /* Not allowed according to configuration */
+	nick_banned            = -8, /* Nickname is banned */
+};
+
+/**
+ * Handle info messages as received from clients.
+ * This can be an initial info message, which might end up requiring password
+ * authentication, etc.
+ * All sorts of validation is performed here.
+ * - Nickname valid?
+ * - CID/PID valid?
+ * - Network IP address valid?
+ *
+ * This can be triggered multiple times, as users can update their information,
+ * in such case nickname and CID/PID changes are not allowed.
+ *
+ * @return 0 on success, -1 on error
+ */
+extern int hub_handle_info(struct hub_info* hub, struct hub_user* u, const struct adc_message* cmd);
+
+
+#endif /* HAVE_UHUB_INF_PARSER_H */
+

src/core/main.c

@@ -0,0 +1,483 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+
+static int arg_verbose = 5;
+static int arg_fork    = 0;
+static int arg_check_config = 0;
+static int arg_dump_config  = 0;
+static int arg_have_config = 0;
+static const char* arg_uid = 0;
+static const char* arg_gid = 0;
+static const char* arg_config  = 0;
+static const char* arg_log = 0;
+static const char* arg_pid = 0;
+static int arg_log_syslog = 0;
+
+
+#if !defined(WIN32)
+extern struct hub_info* g_hub;
+void hub_handle_signal(int sig)
+{
+	struct hub_info* hub = g_hub;
+
+	switch (sig)
+	{
+		case SIGINT:
+			LOG_INFO("Interrupted. Shutting down...");
+			hub->status = hub_status_shutdown;
+			break;
+
+		case SIGTERM:
+			LOG_INFO("Terminated. Shutting down...");
+			hub->status = hub_status_shutdown;
+			break;
+
+		case SIGPIPE:
+			break;
+
+		case SIGHUP:
+			hub->status = hub_status_restart;
+			break;
+
+		default:
+			LOG_TRACE("hub_handle_signal(): caught unknown signal: %d", signal);
+			hub->status = hub_status_shutdown;
+			break;
+	}
+}
+
+static int signals[] =
+{
+	SIGINT,  /* Interrupt the application */
+	SIGTERM, /* Terminate the application */
+	SIGPIPE, /* prevent sigpipe from kills the application */
+	SIGHUP,  /* reload configuration */
+	0
+};
+
+void setup_signal_handlers(struct hub_info* hub)
+{
+	sigset_t sig_set;
+	struct sigaction act;
+	int i;
+
+	sigemptyset(&sig_set);
+	act.sa_mask = sig_set;
+	act.sa_flags = SA_ONSTACK | SA_RESTART;
+	act.sa_handler = hub_handle_signal;
+	
+	for (i = 0; signals[i]; i++)
+	{
+		if (sigaction(signals[i], &act, 0) != 0)
+		{
+			LOG_ERROR("Error setting signal handler %d", signals[i]);
+		}
+	}
+}
+
+void shutdown_signal_handlers(struct hub_info* hub)
+{
+}
+#endif /* !WIN32 */
+
+
+int main_loop()
+{
+	struct hub_config configuration;
+	struct acl_handle acl;
+	struct hub_info* hub = 0;
+
+	if (net_initialize() == -1)
+		return -1;
+
+	do
+	{
+		if (hub)
+		{
+			LOG_INFO("Reloading configuration files...");
+			LOG_DEBUG("Hub status: %d", (int) hub->status);
+
+			/* Reinitialize logs */
+			hub_log_shutdown();
+			hub_log_initialize(arg_log, arg_log_syslog);
+			hub_set_log_verbosity(arg_verbose);
+		}
+	
+		if (read_config(arg_config, &configuration, !arg_have_config) == -1)
+			return -1;
+
+		if (acl_initialize(&configuration, &acl) == -1)
+			return -1;
+
+		/*
+		 * Don't restart networking when re-reading configuration.
+		 * This might not be possible either, since we might have
+		 * dropped our privileges to do so.
+		 */
+		if (!hub)
+		{
+			hub = hub_start_service(&configuration);
+			if (!hub)
+				return -1;
+#if !defined(WIN32)
+			setup_signal_handlers(hub);
+#endif
+		}
+
+		hub_set_variables(hub, &acl);
+
+		hub_event_loop(hub);
+
+		hub_free_variables(hub);
+		acl_shutdown(&acl);
+		free_config(&configuration);
+
+	} while (hub->status == hub_status_restart);
+
+#if !defined(WIN32)
+	shutdown_signal_handlers(hub);
+#endif
+	
+	if (hub)
+	{
+		hub_shutdown_service(hub);
+	}
+
+	net_destroy();
+	hub_log_shutdown();
+	return 0;
+}
+
+
+int check_configuration(int dump)
+{
+	struct hub_config configuration;
+	int ret = read_config(arg_config, &configuration, 0);
+
+	if (dump)
+	{
+		if (ret != -1)
+		{
+			dump_config(&configuration, dump > 1);
+		}
+		return 0;
+	}
+
+	if (ret == -1)
+	{
+		fprintf(stderr, "ERROR\n");
+        	return 1;
+	}
+
+	fprintf(stdout, "OK\n");
+	return 0;
+}
+
+
+void print_version()
+{
+	fprintf(stdout, PRODUCT_STRING "\n");
+	fprintf(stdout, COPYRIGHT "\n"
+			"This is free software with ABSOLUTELY NO WARRANTY.\n\n");
+	exit(0);
+}
+
+
+void print_usage(char* program)
+{
+	fprintf(stderr, "Usage: %s [options]\n\n", program);
+	fprintf(stderr,
+		"Options:\n"
+		"   -v          Verbose mode. Add more -v's for higher verbosity.\n"
+		"   -q          Quiet mode - no output\n"
+		"   -f          Fork to background\n"
+		"   -l <file>   Log messages to given file (default: stderr)\n"
+		"   -L          Log messages to syslog\n"
+		"   -c <file>   Specify configuration file (default: " SERVER_CONFIG ")\n"
+		"   -C          Check configuration and return\n"
+		"   -s          Show configuration parameters\n"
+		"   -S          Show configuration parameters, but ignore defaults\n"
+		"   -h          This message\n"
+#ifndef WIN32
+		"   -u <user>   Run as given user\n"
+		"   -g <group>  Run with given group permissions\n"
+		"   -p <file>   Store pid in file (process id)\n"
+#endif
+		"   -V          Show version number.\n"
+	);
+
+	exit(0);
+}
+
+
+void parse_command_line(int argc, char** argv)
+{
+	int opt;
+	while ((opt = getopt(argc, argv, "vqfc:l:hu:g:VCsSLp:")) != -1)
+	{
+		switch (opt)
+		{
+			case 'V':
+				print_version();
+				break;
+
+			case 'v':
+				arg_verbose++;
+				break;
+
+			case 'q':
+				arg_verbose -= 99;
+				break;
+
+			case 'f':
+				arg_fork = 1;
+				break;
+
+			case 'c':
+				arg_config = optarg;
+				arg_have_config = 1;
+				break;
+
+			case 'C':
+				arg_check_config = 1;
+				arg_have_config = 1;
+				break;
+
+			case 's':
+				arg_dump_config = 1;
+				arg_check_config = 1;
+				break;
+				
+			case 'S':
+				arg_dump_config = 2;
+				arg_check_config = 1;
+				break;
+
+			case 'l':
+				arg_log = optarg;
+				break;
+				
+			case 'L':
+				arg_log_syslog = 1;
+				break;
+
+			case 'h':
+				print_usage(argv[0]);
+				break;
+
+			case 'u':
+				arg_uid = optarg;
+				break;
+
+			case 'g':
+				arg_gid = optarg;
+				break;
+
+			case 'p':
+				arg_pid = optarg;
+				break;
+
+			default:
+				print_usage(argv[0]);
+				break;
+		}
+	}
+
+	if (arg_config == NULL)
+	{
+		arg_config = SERVER_CONFIG;
+	}
+
+	hub_log_initialize(arg_log, arg_log_syslog);
+	hub_set_log_verbosity(arg_verbose);
+}
+
+
+#ifndef WIN32
+int drop_privileges()
+{
+	struct group* perm_group = 0;
+	struct passwd* perm_user = 0;
+	gid_t perm_gid = 0;
+	uid_t perm_uid = 0;
+	int gid_ok = 0;
+	int ret = 0;
+
+	if (arg_gid)
+	{
+		ret = 0;
+		while ((perm_group = getgrent()) != NULL)
+		{
+			if (strcmp(perm_group->gr_name, arg_gid) == 0)
+			{
+				perm_gid = perm_group->gr_gid;
+				ret = 1;
+				break;
+			}
+		}
+
+		endgrent();
+
+		if (!ret)
+		{
+			LOG_FATAL("Unable to determine group id, check group name.");
+			return -1;
+		}
+
+		LOG_TRACE("Setting group id %d (%s)", (int) perm_gid, arg_gid);
+		ret = setgid(perm_gid);
+		if (ret == -1)
+		{
+			LOG_FATAL("Unable to change group id, permission denied.");
+			return -1;
+		}
+		gid_ok = 1;
+	}
+
+	if (arg_uid)
+	{
+		ret = 0;
+		while ((perm_user = getpwent()) != NULL)
+		{
+			if (strcmp(perm_user->pw_name, arg_uid) == 0)
+			{
+				perm_uid = perm_user->pw_uid;
+				if (!gid_ok)
+					perm_gid = perm_user->pw_gid;
+				ret = 1;
+				break;
+			}
+		}
+
+		endpwent();
+
+		if (!ret)
+		{
+			LOG_FATAL("Unable to determine user id, check user name.");
+			return -1;
+		}
+
+		if (!gid_ok) {
+			LOG_TRACE("Setting group id %d (%s)", (int) perm_gid, arg_gid);
+			ret = setgid(perm_gid);
+			if (ret == -1)
+			{
+				LOG_FATAL("Unable to change group id, permission denied.");
+				return -1;
+			}
+		}
+
+		LOG_TRACE("Setting user id %d (%s)", (int) perm_uid, arg_uid);
+		ret = setuid(perm_uid);
+		if (ret == -1)
+		{
+			LOG_FATAL("Unable to change user id, permission denied.");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+int pidfile_create()
+{
+	if (arg_pid)
+	{
+		FILE* pidfile = fopen(arg_pid, "w");
+	        if (!pidfile)
+		{
+			LOG_FATAL("Unable to write pid file: %s\n", arg_pid);
+			return -1;
+		}
+
+		fprintf(pidfile, "%d", (int) getpid());
+		fclose(pidfile);
+	}
+	return 0;
+}
+
+int pidfile_destroy()
+{
+	if (arg_pid)
+	{
+		return unlink(arg_pid);
+	}
+	return 0;
+}
+
+#endif /* WIN32 */
+
+
+int main(int argc, char** argv)
+{
+	int ret = 0;
+
+	parse_command_line(argc, argv);
+
+	if (arg_check_config)
+	{
+		return check_configuration(arg_dump_config);
+	}
+
+#ifndef WIN32
+	if (arg_fork)
+	{
+		ret = fork();
+		if (ret == -1)
+		{
+			LOG_FATAL("Unable to fork to background!");
+			return -1;
+		}
+		else if (ret == 0)
+		{
+			/* child process - detatch from TTY */
+			fclose(stdin);
+			fclose(stdout);
+			fclose(stderr);
+			close(0);
+			close(1);
+			close(2);
+		}
+		else
+		{
+			/* parent process */
+			LOG_DEBUG("Forked to background\n");
+			return 0;
+		}
+	}
+
+	if (pidfile_create() == -1)
+		return -1;
+
+	if (drop_privileges() == -1)
+		return -1;
+#endif /* WIN32 */
+
+	ret = main_loop();
+
+#ifndef WIN32
+	pidfile_destroy();
+#endif
+
+	return ret;
+}
+

src/core/netevent.c

@@ -0,0 +1,219 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <uhub.h>
+#include "hubio.h"
+#include "probe.h"
+
+/* FIXME: This should not be needed! */
+extern struct hub_info* g_hub;
+
+int handle_net_read(struct hub_user* user)
+{
+	static char buf[MAX_RECV_BUF];
+	struct hub_recvq* q = user->recv_queue;
+	size_t buf_size = hub_recvq_get(q, buf, MAX_RECV_BUF);
+	ssize_t size;
+
+	if (user_flag_get(user, flag_maxbuf))
+		buf_size = 0;
+	size = net_con_recv(user->connection, buf + buf_size, MAX_RECV_BUF - buf_size);
+
+	if (size > 0)
+		buf_size += size;
+
+	if (size < 0)
+	{
+		if (size == -1)
+			return quit_disconnected;
+		else
+			return quit_socket_error;
+	}
+	else if (size == 0)
+	{
+		return 0;
+	}
+	else
+	{
+		char* lastPos = 0;
+		char* start = buf;
+		char* pos = 0;
+		size_t remaining = buf_size;
+
+		while ((pos = memchr(start, '\n', remaining)))
+		{
+			lastPos = pos;
+			pos[0] = '\0';
+
+#ifdef DEBUG_SENDQ
+			LOG_DUMP("PROC: \"%s\" (%d)\n", start, (int) (pos - start));
+#endif
+
+			if (user_flag_get(user, flag_maxbuf))
+			{
+				user_flag_unset(user, flag_maxbuf);
+			}
+			else
+			{
+				if (((pos - start) > 0) && g_hub->config->max_recv_buffer > (pos - start))
+				{
+					if (hub_handle_message(g_hub, user, start, (pos - start)) == -1)
+					{
+							return quit_protocol_error;
+					}
+				}
+			}
+
+			pos[0] = '\n'; /* FIXME: not needed */
+			pos ++;
+			remaining -= (pos - start);
+			start = pos;
+		}
+
+		if (lastPos || remaining)
+		{
+			if (remaining < g_hub->config->max_recv_buffer)
+			{
+				hub_recvq_set(q, lastPos ? lastPos : buf, remaining);
+			}
+			else
+			{
+				hub_recvq_set(q, 0, 0);
+				user_flag_set(user, flag_maxbuf);
+				LOG_WARN("Received message past max_recv_buffer, dropping message.");
+			}
+		}
+		else
+		{
+			hub_recvq_set(q, 0, 0);
+		}
+	}
+	return 0;
+}
+
+int handle_net_write(struct hub_user* user)
+{
+	int ret = 0;
+	while (hub_sendq_get_bytes(user->send_queue))
+	{
+		ret = hub_sendq_send(user->send_queue, user);
+		if (ret <= 0)
+			break;
+	}
+
+	if (ret < 0)
+		return quit_socket_error;
+
+	if (hub_sendq_get_bytes(user->send_queue))
+	{
+		user_net_io_want_write(user);
+	}
+	else
+	{
+		user_net_io_want_read(user);
+	}
+	return 0;
+}
+
+void net_event(struct net_connection* con, int event, void *arg)
+{
+	struct hub_user* user = (struct hub_user*) arg;
+	int flag_close = 0;
+
+#ifdef DEBUG_SENDQ
+	LOG_TRACE("net_event() : fd=%d, ev=%d, arg=%p", con->sd, (int) event, arg);
+#endif
+
+	if (event == NET_EVENT_TIMEOUT)
+	{
+		if (user_is_connecting(user))
+		{
+			hub_disconnect_user(g_hub, user, quit_timeout);
+		}
+		return;
+	}
+
+	if (event & NET_EVENT_READ)
+	{
+		flag_close = handle_net_read(user);
+		if (flag_close)
+		{
+			hub_disconnect_user(g_hub, user, flag_close);
+			return;
+		}
+	}
+
+	if (event & NET_EVENT_WRITE)
+	{
+		flag_close = handle_net_write(user);
+		if (flag_close)
+		{
+			hub_disconnect_user(g_hub, user, flag_close);
+			return;
+		}
+	}
+}
+
+void net_on_accept(struct net_connection* con, int event, void *arg)
+{
+	struct hub_info* hub = (struct hub_info*) arg;
+	struct hub_probe* probe = 0;
+	struct ip_addr_encap ipaddr;
+	const char* addr;
+	int server_fd = net_con_get_sd(con);
+
+	for (;;)
+	{
+		int fd = net_accept(server_fd, &ipaddr);
+		if (fd == -1)
+		{
+			if (net_error() == EWOULDBLOCK)
+			{
+				break;
+			}
+			else
+			{
+				LOG_ERROR("Accept error: %d %s", net_error(), strerror(net_error()));
+				break;
+			}
+		}
+
+		addr = ip_convert_to_string(&ipaddr);
+
+		/* FIXME: Should have a plugin log this */
+		LOG_TRACE("Got connection from %s", addr);
+
+		/* FIXME: A plugin should perform this check: is IP banned? */
+		if (acl_is_ip_banned(hub->acl, addr))
+		{
+			LOG_INFO("Denied      [%s] (IP banned)", addr);
+			net_close(fd);
+			continue;
+		}
+
+		probe = probe_create(hub, fd, &ipaddr);
+		if (!probe)
+		{
+			LOG_ERROR("Unable to create probe after socket accepted. Out of memory?");
+			net_close(fd);
+			break;
+		}
+	}
+}
+

src/core/netevent.h

@@ -0,0 +1,34 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_NET_EVENT_H
+#define HAVE_UHUB_NET_EVENT_H
+
+/**
+ * Network callback to accept incoming connections.
+ */
+extern void net_on_accept(struct net_connection* con, int event, void *arg);
+extern void net_event(struct net_connection* con, int event, void *arg);
+
+extern int handle_net_read(struct hub_user* user);
+extern int handle_net_write(struct hub_user* user);
+
+
+#endif /* HAVE_UHUB_NET_EVENT_H */
+

src/core/probe.c

@@ -0,0 +1,139 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+#include "probe.h"
+
+#define PROBE_RECV_SIZE 12
+static char probe_recvbuf[PROBE_RECV_SIZE];
+
+static void probe_net_event(struct net_connection* con, int events, void *arg)
+{
+	struct hub_probe* probe = (struct hub_probe*) net_con_get_ptr(con);
+	if (events == NET_EVENT_TIMEOUT)
+	{
+		probe_destroy(probe);
+		return;
+	}
+
+	if (events & NET_EVENT_READ)
+	{
+		int bytes = net_con_peek(con, probe_recvbuf, PROBE_RECV_SIZE);
+		if (bytes < 0)
+		{
+			probe_destroy(probe);
+			return;
+		}
+
+		if (bytes >= 4)
+		{
+			if (memcmp(probe_recvbuf, "HSUP", 4) == 0)
+			{
+				LOG_TRACE("Probed ADC");
+#ifdef SSL_SUPPORT
+				if (probe->hub->config->tls_enable && probe->hub->config->tls_require)
+				{
+					if (*probe->hub->config->tls_require_redirect_addr)
+					{
+						char buf[512];
+						ssize_t len = snprintf(buf, sizeof(buf), "ISUP " ADC_PROTO_SUPPORT "\nISID AAAB\nIINF NIRedirecting...\nIQUI AAAB RD%s\n", probe->hub->config->tls_require_redirect_addr);
+						net_con_send(con, buf, (size_t) len);
+						LOG_TRACE("Not TLS connection - Redirecting to %s.", probe->hub->config->tls_require_redirect_addr);
+					}
+					else
+					{
+						LOG_TRACE("Not TLS connection - closing connection.");
+					}
+				}
+				else
+#endif
+				if (user_create(probe->hub, probe->connection, &probe->addr))
+				{
+					probe->connection = 0;
+				}
+				probe_destroy(probe);
+				return;
+			}
+#ifdef SSL_SUPPORT
+			else if (bytes >= 11 &&
+				probe_recvbuf[0] == 22 && 
+				probe_recvbuf[1] == 3 && /* protocol major version */
+				probe_recvbuf[5] == 1 && /* message type */
+				probe_recvbuf[9] == probe_recvbuf[1] &&
+				probe_recvbuf[10] == probe_recvbuf[2])
+			{
+				if (probe->hub->config->tls_enable)
+				{
+					LOG_TRACE("Probed TLS %d.%d connection", (int) probe_recvbuf[1], (int) probe_recvbuf[2]);
+					if (user_create(probe->hub, probe->connection, &probe->addr))
+					{
+						probe->connection = 0;
+					}
+					net_con_ssl_handshake(con, net_con_ssl_mode_server, probe->hub->ssl_ctx);
+				}
+				else
+				{
+					LOG_TRACE("Probed TLS %d.%d connection. TLS disabled in hub.", (int) probe_recvbuf[1], (int) probe_recvbuf[2]);
+				}
+				probe_destroy(probe);
+				return;
+			}
+			else
+			{
+				LOG_TRACE("Probed TLS %d.%d connection", (int) probe_recvbuf[1], (int) probe_recvbuf[2]);
+
+				net_con_ssl_handshake(con, net_con_ssl_mode_server, probe->hub->ssl_ctx);
+				return;
+			}
+#else
+			probe_destroy(probe);
+			return;
+#endif
+		}
+	}
+}
+
+struct hub_probe* probe_create(struct hub_info* hub, int sd, struct ip_addr_encap* addr)
+{
+	struct hub_probe* probe = (struct hub_probe*) hub_malloc_zero(sizeof(struct hub_probe));
+
+	if (probe == NULL)
+		return NULL; /* OOM */
+
+	LOG_TRACE("probe_create(): %p", probe);
+
+	probe->hub = hub;
+	probe->connection = net_con_create();
+	net_con_initialize(probe->connection, sd, probe_net_event, probe, NET_EVENT_READ);
+	net_con_set_timeout(probe->connection, TIMEOUT_CONNECTED);
+
+	memcpy(&probe->addr, addr, sizeof(struct ip_addr_encap));
+	return probe;
+}
+
+void probe_destroy(struct hub_probe* probe)
+{
+	LOG_TRACE("probe_destroy(): %p (connection=%p)", probe, probe->connection);
+	if (probe->connection)
+	{
+		net_con_close(probe->connection);
+		probe->connection = 0;
+	}
+	hub_free(probe);
+}

src/core/probe.h

@@ -0,0 +1,35 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_PROBE_H
+#define HAVE_UHUB_PROBE_H
+
+#include "uhub.h"
+
+struct hub_probe
+{
+	struct hub_info*        hub;                /** The hub instance this probe belong to */
+	struct net_connection*  connection;         /** Connection data */
+	struct ip_addr_encap    addr;               /** IP address */
+};
+
+extern struct hub_probe* probe_create(struct hub_info* hub, int sd, struct ip_addr_encap* addr);
+extern void probe_destroy(struct hub_probe* probe);
+
+#endif /* HAVE_UHUB_PROBE_H */

src/core/route.c

@@ -0,0 +1,230 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+int route_message(struct hub_info* hub, struct hub_user* u, struct adc_message* msg)
+{
+	struct hub_user* target = NULL;
+
+	switch (msg->cache[0])
+	{
+		case 'B': /* Broadcast to all logged in clients */
+			route_to_all(hub, msg);
+			break;
+			
+		case 'D':
+			target = uman_get_user_by_sid(hub, msg->target);
+			if (target)
+			{
+				route_to_user(hub, target, msg);
+			}
+			break;
+			
+		case 'E':
+			target = uman_get_user_by_sid(hub, msg->target);
+			if (target)
+			{
+				route_to_user(hub, target, msg);
+				route_to_user(hub, u, msg);
+			}
+			break;
+			
+		case 'F':
+			route_to_subscribers(hub, msg);
+			break;	
+		
+		default:
+			/* Ignore the message */
+			break;
+	}
+	return 0;
+}
+
+static inline size_t get_max_send_queue(struct hub_info* hub)
+{
+	/* TODO: More dynamic send queue limit, for instance:
+	 * return MAX(hub->config->max_send_buffer, (hub->config->max_recv_buffer * hub_get_user_count(hub)));
+	 */
+	return hub->config->max_send_buffer;
+}
+
+static inline size_t get_max_send_queue_soft(struct hub_info* hub)
+{
+	return hub->config->max_send_buffer_soft;
+}
+
+/*
+ * @return 1 if send queue is OK.
+ *         -1 if send queue is overflowed
+ *         0 if soft send queue is overflowed (not implemented at the moment)
+ */
+static inline int check_send_queue(struct hub_info* hub, struct hub_user* user, struct adc_message* msg)
+{
+	if (user_flag_get(user, flag_user_list))
+		return 1;
+
+	if ((user->send_queue->size + msg->length) > get_max_send_queue(hub))
+	{
+		LOG_WARN("send queue overflowed, message discarded.");
+		return -1;
+	}
+
+	if (user->send_queue->size > get_max_send_queue_soft(hub))
+	{
+		LOG_WARN("send queue soft overflowed.");
+		return 0;
+	}
+
+	return 1;
+}
+
+int route_to_user(struct hub_info* hub, struct hub_user* user, struct adc_message* msg)
+{
+#ifdef DEBUG_SENDQ
+	char* data = strndup(msg->cache, msg->length-1);
+	LOG_PROTO("send %s: \"%s\"", sid_to_string(user->id.sid), data);
+	free(data);
+#endif
+
+	if (!user->connection)
+		return 0;
+
+	assert(msg->cache && *msg->cache);
+
+	if (hub_sendq_is_empty(user->send_queue) && !user_flag_get(user, flag_pipeline))
+	{
+		/* Perform oportunistic write */
+		hub_sendq_add(user->send_queue, msg);
+		handle_net_write(user);
+	}
+	else
+	{
+		if (check_send_queue(hub, user, msg) >= 0)
+		{
+			hub_sendq_add(user->send_queue, msg);
+			if (!user_flag_get(user, flag_pipeline))
+				user_net_io_want_write(user);
+		}
+	}
+	return 1;
+}
+
+int route_flush_pipeline(struct hub_info* hub, struct hub_user* u)
+{
+	if (hub_sendq_is_empty(u->send_queue))
+		return 0;
+
+	handle_net_write(u);
+	user_flag_unset(u, flag_pipeline);
+	return 1;
+}
+
+
+int route_to_all(struct hub_info* hub, struct adc_message* command) /* iterate users */
+{
+	struct hub_user* user = (struct hub_user*) list_get_first(hub->users->list);
+	while (user)
+	{
+		route_to_user(hub, user, command);
+		user = (struct hub_user*) list_get_next(hub->users->list);
+	}
+
+	return 0;
+}
+
+int route_to_subscribers(struct hub_info* hub, struct adc_message* command) /* iterate users */
+{
+	int do_send;
+	char* tmp;
+	
+	struct hub_user* user = (struct hub_user*) list_get_first(hub->users->list);
+	while (user)
+	{
+		if (user->feature_cast)
+		{
+			do_send = 1;
+			
+			tmp = list_get_first(command->feature_cast_include);
+			while (tmp)
+			{
+				if (!user_have_feature_cast_support(user, tmp))
+				{
+					do_send = 0;
+					break;
+				}
+				tmp = list_get_next(command->feature_cast_include);;
+			}
+			
+			if (!do_send) {
+				user = (struct hub_user*) list_get_next(hub->users->list);
+				continue;
+			}
+			
+			tmp = list_get_first(command->feature_cast_exclude);
+			while (tmp)
+			{
+				if (user_have_feature_cast_support(user, tmp))
+				{
+					do_send = 0;
+					break;
+				}
+				tmp = list_get_next(command->feature_cast_exclude);
+			}
+			
+			if (do_send)
+			{
+				route_to_user(hub, user, command);
+			}
+		}
+		user = (struct hub_user*) list_get_next(hub->users->list);
+	}
+	
+	return 0;
+}
+
+int route_info_message(struct hub_info* hub, struct hub_user* u)
+{
+	if (!user_is_nat_override(u))
+	{
+		return route_to_all(hub, u->info);
+	}
+	else
+	{
+		struct adc_message* cmd = adc_msg_copy(u->info);
+		const char* address = user_get_address(u);
+		struct hub_user* user = 0;
+		
+		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);
+		adc_msg_add_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR, address);
+	
+		user = (struct hub_user*) list_get_first(hub->users->list);
+		while (user)
+		{
+			if (user_is_nat_override(user))
+				route_to_user(hub, user, cmd);
+			else
+				route_to_user(hub, user, u->info);
+			
+			user = (struct hub_user*) list_get_next(hub->users->list);
+		}
+		adc_msg_free(cmd);
+	}
+	return 0;
+}

src/core/route.h

@@ -0,0 +1,56 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_ROUTE_H
+#define HAVE_UHUB_ROUTE_H
+
+/**
+ * Route a message by sending it to it's final destination.
+ */
+extern int route_message(struct hub_info* hub, struct hub_user* u, struct adc_message* msg);
+
+/**
+ * Send queued messages.
+ */
+extern int route_flush_pipeline(struct hub_info* hub, struct hub_user* u);
+
+/**
+ * Transmit message directly to one user.
+ */
+extern int route_to_user(struct hub_info* hub, struct hub_user*, struct adc_message* command);
+
+/**
+ * Broadcast message to all users.
+ */
+extern int route_to_all(struct hub_info* hub, struct adc_message* command);
+
+/**
+ * Broadcast message to all users subscribing to the type of message.
+ */
+extern int route_to_subscribers(struct hub_info* hub, struct adc_message* command);
+
+/**
+ * Broadcast initial info message to all users.
+ * This will ensure the correct IP is seen by other users
+ * in case nat override is in use.
+ */
+extern int route_info_message(struct hub_info* hub, struct hub_user* user);
+
+
+#endif /* HAVE_UHUB_ROUTE_H */

src/core/user.c

@@ -0,0 +1,368 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+#ifdef DEBUG_SENDQ
+static const char* user_log_str(struct hub_user* user)
+{
+	static char buf[128];
+	if (user)
+	{
+		snprintf(buf, 128, "user={ %p, \"%s\", %s/%s}", user, user->id.nick, sid_to_string(user->id.sid), user->id.cid);
+	}
+	else
+	{
+		snprintf(buf, 128, "user={ %p }", user);
+	}
+	return buf;
+}
+#endif
+
+struct hub_user* user_create(struct hub_info* hub, struct net_connection* con, struct ip_addr_encap* addr)
+{
+	struct hub_user* user = NULL;
+	
+	LOG_TRACE("user_create(), hub=%p, con[sd=%d]", hub, net_con_get_sd(con));
+
+	user = (struct hub_user*) hub_malloc_zero(sizeof(struct hub_user));
+
+	if (user == NULL)
+		return NULL; /* OOM */
+
+	user->send_queue = hub_sendq_create();
+	user->recv_queue = hub_recvq_create();
+
+	user->connection = con;
+	net_con_reinitialize(user->connection, net_event, user, NET_EVENT_READ);
+
+	memcpy(&user->id.addr, addr, sizeof(struct ip_addr_encap));
+	user_set_state(user, state_protocol);
+
+	flood_control_reset(&user->flood_chat);
+	flood_control_reset(&user->flood_connect);
+	flood_control_reset(&user->flood_search);
+	flood_control_reset(&user->flood_update);
+	flood_control_reset(&user->flood_extras);
+	return user;
+}
+
+
+void user_destroy(struct hub_user* user)
+{
+	LOG_TRACE("user_destroy(), user=%p", user);
+
+	hub_recvq_destroy(user->recv_queue);
+	hub_sendq_destroy(user->send_queue);
+
+	if (user->connection)
+	{
+		LOG_TRACE("user_destory() -> net_con_close(%p)", user->connection);
+		net_con_close(user->connection);
+	}
+
+	adc_msg_free(user->info);
+	user_clear_feature_cast_support(user);
+	hub_free(user);
+}
+
+void user_set_state(struct hub_user* user, enum user_state state)
+{
+	if ((user->state == state_cleanup && state != state_disconnected) || (user->state == state_disconnected))
+	{
+		return;
+	}
+	
+	user->state = state;
+}
+
+void user_set_info(struct hub_user* user, struct adc_message* cmd)
+{
+	adc_msg_free(user->info);
+	if (cmd)
+	{
+		user->info = adc_msg_incref(cmd);
+	}
+	else
+	{
+		user->info = 0;
+	}
+}
+
+void user_update_info(struct hub_user* u, struct adc_message* cmd)
+{
+	char prefix[2];
+	char* argument;
+	size_t n = 0;
+	struct adc_message* cmd_new = adc_msg_copy(u->info);
+	if (!cmd_new)
+	{
+		/* FIXME: OOM! */
+		return;
+	}
+
+	/*
+	 * FIXME: Optimization potential:
+	 *
+	 * remove parts of cmd that do not really change anything in cmd_new.
+	 * this can save bandwidth if clients send multiple updates for information
+	 * that does not really change anything.
+	 */
+	argument = adc_msg_get_argument(cmd, n++);
+	while (argument)
+	{
+		if (strlen(argument) >= 2)
+		{
+			prefix[0] = argument[0];
+			prefix[1] = argument[1];
+			adc_msg_replace_named_argument(cmd_new, prefix, argument+2);
+		}
+		
+		hub_free(argument);
+		argument = adc_msg_get_argument(cmd, n++);
+	}
+	user_set_info(u, cmd_new);
+	adc_msg_free(cmd_new);
+}
+
+
+static int convert_support_fourcc(int fourcc)
+{
+	switch (fourcc)
+	{
+		case FOURCC('B','A','S','0'):
+			return feature_bas0;
+
+		case FOURCC('B','A','S','E'):
+			return feature_base;
+
+		case FOURCC('A','U','T','0'):
+			return  feature_auto;
+
+		case FOURCC('U','C','M','0'):
+		case FOURCC('U','C','M','D'):
+			return feature_ucmd;
+
+		case FOURCC('Z','L','I','F'):
+			return feature_zlif;
+
+		case FOURCC('B','B','S','0'):
+			return feature_bbs;
+
+		case FOURCC('T','I','G','R'):
+			return feature_tiger;
+
+		case FOURCC('B','L','O','M'):
+		case FOURCC('B','L','O','0'):
+			return feature_bloom;
+
+		case FOURCC('P','I','N','G'):
+			return feature_ping;
+
+		case FOURCC('L','I','N','K'):
+			return feature_link;
+
+		case FOURCC('A','D','C','S'):
+			return feature_adcs;
+
+		default:
+			LOG_DEBUG("Unknown extension: %x", fourcc);
+			return 0;
+	}
+}
+
+void user_support_add(struct hub_user* user, int fourcc)
+{
+	int feature_mask = convert_support_fourcc(fourcc);
+	user->flags |= feature_mask;
+}
+
+int user_flag_get(struct hub_user* user, enum user_flags flag)
+{
+    return user->flags & flag;
+}
+
+void user_flag_set(struct hub_user* user, enum user_flags flag)
+{
+    user->flags |= flag;
+}
+
+void user_flag_unset(struct hub_user* user, enum user_flags flag)
+{
+    user->flags &= ~flag;
+}
+
+void user_set_nat_override(struct hub_user* user)
+{
+	user_flag_set(user, flag_nat);
+}
+
+int user_is_nat_override(struct hub_user* user)
+{
+	return user_flag_get(user, flag_nat);
+}
+
+void user_support_remove(struct hub_user* user, int fourcc)
+{
+	int feature_mask = convert_support_fourcc(fourcc);
+	user->flags &= ~feature_mask;
+}
+
+int user_have_feature_cast_support(struct hub_user* user, char feature[4])
+{
+	char* tmp = list_get_first(user->feature_cast);
+	while (tmp)
+	{
+		if (strncmp(tmp, feature, 4) == 0)
+			return 1;
+	
+		tmp = list_get_next(user->feature_cast);
+	}
+	
+	return 0;
+}
+
+int user_set_feature_cast_support(struct hub_user* u, char feature[4])
+{
+	if (!u->feature_cast)
+	{
+		u->feature_cast = list_create();
+	}
+
+	if (!u->feature_cast)
+	{
+		return 0; /* OOM! */
+	}
+
+	list_append(u->feature_cast, hub_strndup(feature, 4));
+	return 1;
+}
+
+void user_clear_feature_cast_support(struct hub_user* u)
+{
+	if (u->feature_cast)
+	{
+		list_clear(u->feature_cast, &hub_free);
+		list_destroy(u->feature_cast);
+		u->feature_cast = 0;
+	}
+}
+
+int user_is_logged_in(struct hub_user* user)
+{
+	if (user->state == state_normal)
+		return 1;
+	return 0;
+}
+
+int user_is_connecting(struct hub_user* user)
+{
+	if (user->state == state_protocol || user->state == state_identify || user->state == state_verify)
+		return 1;
+	return 0;
+}
+
+int user_is_protocol_negotiating(struct hub_user* user)
+{
+	if (user->state == state_protocol)
+		return 1;
+	return 0;
+}
+
+int user_is_disconnecting(struct hub_user* user)
+{
+	if (user->state == state_cleanup || user->state == state_disconnected)
+		return 1;
+	return 0;
+}
+
+int user_is_protected(struct hub_user* user)
+{
+	switch (user->credentials)
+	{
+		case cred_bot:
+		case cred_operator:
+		case cred_super:
+		case cred_admin:
+		case cred_link:
+			return 1;
+		default:
+			break;
+	}
+	return 0;
+}
+
+/**
+ * Returns 1 if a user is registered.
+ * Only registered users will be let in if the hub is configured for registered
+ * users only.
+ */
+int user_is_registered(struct hub_user* user)
+{
+	switch (user->credentials)
+	{
+		case cred_bot:
+		case cred_user:
+		case cred_operator:
+		case cred_super:
+		case cred_admin:
+		case cred_link:
+			return 1;
+		default:
+			break;
+	}
+	return 0;
+}
+
+void user_net_io_want_write(struct hub_user* user)
+{
+	net_con_update(user->connection, NET_EVENT_READ | NET_EVENT_WRITE);
+}
+
+void user_net_io_want_read(struct hub_user* user)
+{
+	net_con_update(user->connection, NET_EVENT_READ);
+}
+
+const char* user_get_quit_reason_string(enum user_quit_reason reason)
+{
+	switch (reason)
+	{
+		case quit_unknown:          return "unknown";        break;
+		case quit_disconnected:     return "disconnected";   break;
+		case quit_kicked:           return "kicked";         break;
+		case quit_banned:           return "banned";         break;
+		case quit_timeout:          return "timeout";        break;
+		case quit_send_queue:       return "send queue";     break;
+		case quit_memory_error:     return "out of memory";  break;
+		case quit_socket_error:     return "socket error";   break;
+		case quit_protocol_error:   return "protocol error"; break;
+		case quit_logon_error:      return "login error";    break;
+		case quit_update_error:     return "update error";   break;
+		case quit_hub_disabled:     return "hub disabled";   break;
+		case quit_ghost_timeout:    return "ghost";          break;
+	}
+
+	return "unknown";
+}
+
+const char* user_get_address(struct hub_user* user)
+{
+	return ip_convert_to_string(&user->id.addr);
+}

src/core/user.h

@@ -0,0 +1,278 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_USER_H
+#define HAVE_UHUB_USER_H
+
+struct hub_info;
+struct hub_iobuf;
+struct flood_control;
+
+enum user_state
+{
+	state_protocol     = 0,      /**<< "User must send a valid protocol handshake" */
+	state_identify     = 1,      /**<< "User must send identification message (INF) " */
+	state_verify       = 2,      /**<< "User must send password to verify identification" */
+	state_normal       = 3,      /**<< "User is logged in." */
+	state_cleanup      = 4,      /**<< "User is disconnected, but other users need to be notified." */
+	state_disconnected = 5,      /**<< "User is disconnected" */
+};
+
+enum user_flags
+{
+	feature_base    = 0x00000001, /** BASE: Basic configuration (required by all clients) */
+	feature_auto    = 0x00000002, /** AUT0: Automatic nat detection traversal */
+	feature_bbs     = 0x00000004, /** BBS0: Bulletin board system (not supported) */
+	feature_ucmd    = 0x00000008, /** UCMD: User commands (not supported by this software) */
+	feature_zlif    = 0x00000010, /** ZLIF: gzip stream compression (not supported) */
+	feature_tiger   = 0x00000020, /** TIGR: Client supports the tiger hash algorithm */
+	feature_bloom   = 0x00000040, /** BLO0: Bloom filter (not supported) */
+	feature_ping    = 0x00000080, /** PING: Hub pinger information extension */
+	feature_link    = 0x00000100, /** LINK: Hub link (not supported) */
+	feature_adcs    = 0x00000200, /** ADCS: ADC over TLS/SSL */
+	feature_bas0    = 0x00000400, /** BAS0: Obsolete pre-ADC/1.0 protocol version */
+	flag_flood      = 0x00400000, /** User has been notified about flooding. */
+	flag_muted      = 0x00800000, /** User is muted (cannot chat) */
+	flag_ignore     = 0x01000000, /** Ignore further reads */
+	flag_maxbuf     = 0x02000000, /** Hit max buf read, ignore msg */
+	flag_choke      = 0x04000000, /** Choked: Cannot send, waiting for write event */ 
+	flag_want_read  = 0x08000000, /** Need to read (SSL) */
+	flag_want_write = 0x10000000, /** Need to write (SSL) */
+	flag_user_list  = 0x20000000, /** Send queue bypass (when receiving the send queue) */
+	flag_pipeline   = 0x40000000, /** Hub message pipelining */
+	flag_nat        = 0x80000000, /** nat override enabled */
+};
+
+enum user_quit_reason
+{
+	quit_unknown        = 0,
+	quit_disconnected   = 1,     /** User disconnected */
+	quit_kicked         = 2,     /** User was kicked */
+	quit_banned         = 3,     /** User was banned */
+	quit_timeout        = 4,     /** User timed out (no data for a while) */
+	quit_send_queue     = 5,     /** User's send queue was overflowed */
+	quit_memory_error   = 6,     /** Not enough memory available */
+	quit_socket_error   = 7,     /** A socket error occured */
+	quit_protocol_error = 8,     /** Fatal protocol error */
+	quit_logon_error    = 9,     /** Unable to login (wrong password, CID/PID, etc) */
+	quit_update_error   = 10,    /** Update error. INF update changed share/slot info and no longer satisfies the hub limits. */
+	quit_hub_disabled   = 11,    /** Hub is disabled. No new connections allowed */
+	quit_ghost_timeout  = 12,    /** The user is a ghost, and trying to login from another connection */
+};
+
+/** Returns an apropriate string for the given quit reason */
+extern const char* user_get_quit_reason_string(enum user_quit_reason);
+
+struct hub_user_info
+{
+	sid_t sid;                    /** session ID */
+	char cid[MAX_CID_LEN+1];      /** global client ID */
+	char nick[MAX_NICK_LEN+1];    /** User's nick name */
+	struct ip_addr_encap addr;    /** User's IP address */
+};
+
+/**
+ * This struct contains additional information about the user, such
+ * as the number of bytes and files shared, and the number of hubs the
+ * user is connected to, etc.
+ */
+struct hub_user_limits
+{
+	uint64_t            shared_size;           /** Shared size in bytes */
+	size_t              shared_files;          /** The number of shared files */
+	size_t              upload_slots;          /** The number of upload slots */
+	size_t              hub_count_user;        /** The number of hubs connected as user */
+	size_t              hub_count_registered;  /** The number of hubs connected as registered user */
+	size_t              hub_count_operator;    /** The number of hubs connected as operator */
+	size_t              hub_count_total;       /** The number of hubs connected to in total */
+};
+
+struct hub_user
+{
+	enum user_state         state;              /** see enum user_state */
+	enum user_credentials   credentials;        /** see enum user_credentials */
+	struct hub_user_info    id;                 /** Contains nick name and CID */
+	uint32_t                flags;              /** see enum user_features */
+	char                    user_agent[MAX_UA_LEN+1];/** User agent string */
+	struct linked_list*     feature_cast;       /** Features supported by feature cast */
+	struct adc_message*     info;               /** ADC 'INF' message (broadcasted to everyone joining the hub) */
+	struct hub_info*        hub;                /** The hub instance this user belong to */
+	struct hub_recvq*       recv_queue;
+	struct hub_sendq*       send_queue;
+	struct net_connection*  connection;         /** Connection data */
+	struct hub_user_limits  limits;             /** Data used for limitation */
+	enum user_quit_reason   quit_reason;        /** Quit reason (see user_quit_reason) */
+
+	struct flood_control   flood_chat;
+	struct flood_control   flood_connect;
+	struct flood_control   flood_search;
+	struct flood_control   flood_update;
+	struct flood_control   flood_extras;
+};
+
+
+/**
+ * Create a user with the given socket descriptor.
+ * This basically only allocates memory and initializes all variables
+ * to an initial state.
+ *
+ * state is set to state_protocol.
+ *
+ * @param sd socket descriptor associated with the user
+ * @return User object or NULL if not enough memory is available.
+ */
+extern struct hub_user* user_create(struct hub_info* hub, struct net_connection* con, struct ip_addr_encap* addr);
+
+/**
+ * Delete a user.
+ *
+ * !WRONG! If the user is logged in a quit message is issued.
+ */
+extern void user_destroy(struct hub_user* user);
+
+/**
+ * This associates a INF message to the user.
+ * If the user already has a INF message associated, then this is
+ * released before setting the new one.
+ * 
+ * @param info new inf message (can be NULL)
+ */
+extern void user_set_info(struct hub_user* user, struct adc_message* info);
+
+/**
+ * Update a user's INF message.
+ * Will parse replace all ellements in the user's inf message with
+ * the parameters from the cmd (merge operation).
+ */
+extern void user_update_info(struct hub_user* user, struct adc_message* cmd);
+
+/**
+ * Specify a user's state.
+ * NOTE: DON'T, unless you know what you are doing.
+ */
+extern void user_set_state(struct hub_user* user, enum user_state);
+
+/**
+ * Returns 1 if the user is in state state_normal, or 0 otherwise.
+ */
+extern int user_is_logged_in(struct hub_user* user);
+
+/**
+ * Returns 1 if the user is in state_protocol.
+ * Returns 0 otherwise.
+ */
+extern int user_is_protocol_negotiating(struct hub_user* user);
+
+/**
+ * Returns 1 if the user is in state_protocol, state_identify or state_verify.
+ * Returns 0 otherwise.
+ */
+extern int user_is_connecting(struct hub_user* user);
+
+/**
+ * Returns 1 only if the user is in state_cleanup or state_disconnected.
+ */
+extern int user_is_disconnecting(struct hub_user* user);
+
+/**
+ * Returns 1 if a user is protected, which includes users
+ * having any form of elevated privileges.
+ */
+extern int user_is_protected(struct hub_user* user);
+
+/**
+ * Returns 1 if a user is registered, with or without privileges.
+ */
+extern int user_is_registered(struct hub_user* user);
+
+/**
+ * User supports the protocol extension as given in fourcc.
+ * This is usually set while the user is connecting, but can
+ * also be used to subscribe to a new class of messages from the
+ * hub.
+ *
+ * @see enum user_flags
+ */
+extern void user_support_add(struct hub_user* user, int fourcc);
+
+/**
+ * User no longer supports the protocol extension as given in fourcc.
+ * This can be used to unsubscribe to certain messages generated by
+ * the hub.
+ * @see enum user_flags
+ */
+extern void user_support_remove(struct hub_user* user, int fourcc);
+
+extern const char* user_get_address(struct hub_user* user);
+
+/**
+ * Sets the nat override flag for a user, this allows users on the same
+ * subnet as a natted hub to spoof their IP in order to use active mode
+ * on a natted hub.
+ */
+extern void user_set_nat_override(struct hub_user* user);
+extern int user_is_nat_override(struct hub_user* user);
+
+/**
+ * Set a flag. @see enum user_flags
+ */
+extern void user_flag_set(struct hub_user* user, enum user_flags flag);
+extern void user_flag_unset(struct hub_user* user, enum user_flags flag);
+
+/**
+ * Get a flag. @see enum user_flags
+ */
+extern int user_flag_get(struct hub_user* user, enum user_flags flag);
+
+/**
+ * Check if a user supports 'feature' for feature casting (basis for 'Fxxx' messages)
+ * The feature cast is specified as the 'SU' argument to the user's
+ * INF-message.
+ * 
+ * @param feature a feature to lookup (example: 'TCP4' or 'UDP4')
+ * @return 1 if 'feature' supported, or 0 otherwise
+ */
+extern int user_have_feature_cast_support(struct hub_user* user, char feature[4]);
+
+/**
+ * Set feature cast support for feature.
+ *
+ * @param feature a feature to lookup (example: 'TCP4' or 'UDP4')
+ * @return 1 if 'feature' supported, or 0 otherwise
+ */
+extern int user_set_feature_cast_support(struct hub_user* u, char feature[4]);
+
+/**
+ * Remove all feature cast support features.
+ */
+extern void user_clear_feature_cast_support(struct hub_user* u);
+
+/**
+ * Mark the user with a want-write flag, meaning it should poll for writability.
+ */
+extern void user_net_io_want_write(struct hub_user* user);
+
+/**
+ * Mark the user with a want read flag, meaning it should poll for readability.
+ */
+extern void user_net_io_want_read(struct hub_user* user);
+
+#endif /* HAVE_UHUB_USER_H */
+
+

src/core/usermanager.c

@@ -0,0 +1,270 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+/*
+ * This callback function is used to clear user objects from the userlist.
+ * Should only be used in uman_shutdown().
+ */
+static void clear_user_list_callback(void* ptr)
+{
+	if (ptr)
+	{
+		struct hub_user* u = (struct hub_user*) ptr;
+		
+		/* Mark the user as already being disconnected.
+		 * This prevents the hub from trying to send
+		 * quit messages to other users.
+		 */
+		u->credentials = cred_none;
+		user_destroy(u);
+	}
+}
+
+void uman_update_stats(struct hub_info* hub)
+{
+	const int factor = TIMEOUT_STATS;
+	struct net_statistics* total;
+	struct net_statistics* intermediate;
+	net_stats_get(&intermediate, &total);
+
+	hub->stats.net_tx = (intermediate->tx / factor);
+	hub->stats.net_rx = (intermediate->rx / factor);
+	hub->stats.net_tx_peak = MAX(hub->stats.net_tx, hub->stats.net_tx_peak);
+	hub->stats.net_rx_peak = MAX(hub->stats.net_rx, hub->stats.net_rx_peak);
+	hub->stats.net_tx_total = total->tx;
+	hub->stats.net_rx_total = total->rx;
+	
+	net_stats_reset();
+}
+
+void uman_print_stats(struct hub_info* hub)
+{
+	LOG_INFO("Statistics  users=" PRINTF_SIZE_T " (peak_users=" PRINTF_SIZE_T "), net_tx=%d KB/s, net_rx=%d KB/s (peak_tx=%d KB/s, peak_rx=%d KB/s)",
+		hub->users->count,
+		hub->users->count_peak,
+		(int) hub->stats.net_tx / 1024,
+		(int) hub->stats.net_rx / 1024,
+		(int) hub->stats.net_tx_peak / 1024,
+		(int) hub->stats.net_rx_peak / 1024);
+}
+
+static void timer_statistics(struct timeout_evt* t)
+{
+	struct hub_info* hub = (struct hub_info*) t->ptr;
+	uman_update_stats(hub);
+	timeout_queue_reschedule(net_backend_get_timeout_queue(), hub->users->timeout, TIMEOUT_STATS);
+}
+
+int uman_init(struct hub_info* hub)
+{
+	struct hub_user_manager* users = NULL;
+	if (!hub)
+		return -1;
+
+	users = (struct hub_user_manager*) hub_malloc_zero(sizeof(struct hub_user_manager));
+	if (!users)
+		return -1;
+
+	users->list = list_create();
+	users->sids = sid_pool_create(net_get_max_sockets());
+
+	if (!users->list)
+	{
+		list_destroy(users->list);
+		hub_free(users);
+		return -1;
+	}
+
+	if (net_backend_get_timeout_queue())
+	{
+		users->timeout = hub_malloc_zero(sizeof(struct timeout_evt));
+		timeout_evt_initialize(users->timeout, timer_statistics, hub);
+		timeout_queue_insert(net_backend_get_timeout_queue(), users->timeout, TIMEOUT_STATS);
+	}
+
+	hub->users = users;
+	return 0;
+}
+
+
+int uman_shutdown(struct hub_info* hub)
+{
+	if (!hub || !hub->users)
+		return -1;
+
+	if (net_backend_get_timeout_queue())
+	{
+		timeout_queue_remove(net_backend_get_timeout_queue(), hub->users->timeout);
+		hub_free(hub->users->timeout);
+	}
+
+	if (hub->users->list)
+	{
+		list_clear(hub->users->list, &clear_user_list_callback);
+		list_destroy(hub->users->list);
+	}
+	sid_pool_destroy(hub->users->sids);
+	hub_free(hub->users);
+	hub->users = 0;
+
+
+	return 0;
+}
+
+
+int uman_add(struct hub_info* hub, struct hub_user* user)
+{
+	if (!hub || !user)
+		return -1;
+
+	if (user->hub)
+		return -1;
+
+	list_append(hub->users->list, user);
+	hub->users->count++;
+	hub->users->count_peak = MAX(hub->users->count, hub->users->count_peak);
+
+	hub->users->shared_size  += user->limits.shared_size;
+	hub->users->shared_files += user->limits.shared_files;
+
+	user->hub = hub;
+	return 0;
+}
+
+int uman_remove(struct hub_info* hub, struct hub_user* user)
+{
+	if (!hub || !user)
+		return -1;
+
+	list_remove(hub->users->list, user);
+
+	if (hub->users->count > 0)
+	{
+		hub->users->count--;
+	}
+	else
+	{
+		assert(!"negative count!");
+	}
+
+	hub->users->shared_size  -= user->limits.shared_size;
+	hub->users->shared_files -= user->limits.shared_files;
+
+	user->hub = 0;
+
+	return 0;
+}
+
+
+struct hub_user* uman_get_user_by_sid(struct hub_info* hub, sid_t sid)
+{
+	return sid_lookup(hub->users->sids, sid);
+}
+
+
+struct hub_user* uman_get_user_by_cid(struct hub_info* hub, const char* cid)
+{
+	struct hub_user* user = (struct hub_user*) list_get_first(hub->users->list); /* iterate users - only on incoming INF msg */
+	while (user)
+	{
+		if (strcmp(user->id.cid, cid) == 0)
+			return user;
+		user = (struct hub_user*) list_get_next(hub->users->list);
+	}
+	return NULL;
+}
+
+
+struct hub_user* uman_get_user_by_nick(struct hub_info* hub, const char* nick)
+{
+	struct hub_user* user = (struct hub_user*) list_get_first(hub->users->list); /* iterate users - only on incoming INF msg */
+	while (user)
+	{
+		if (strcmp(user->id.nick, nick) == 0)
+			return user;
+		user = (struct hub_user*) list_get_next(hub->users->list);
+	}
+	return NULL;
+}
+
+size_t uman_get_user_by_addr(struct hub_info* hub, struct linked_list* users, struct ip_range* range)
+{
+	size_t num = 0;
+	struct hub_user* user = (struct hub_user*) list_get_first(hub->users->list); /* iterate users - only on incoming INF msg */
+	while (user)
+	{
+		if (ip_in_range(&user->id.addr, range))
+		{
+			list_append(users, user);
+			num++;
+		}
+		user = (struct hub_user*) list_get_next(hub->users->list);
+	}
+	return num;
+}
+
+int uman_send_user_list(struct hub_info* hub, struct hub_user* target)
+{
+	int ret = 1;
+	struct hub_user* user;
+	user_flag_set(target, flag_user_list);
+	user = (struct hub_user*) list_get_first(hub->users->list); /* iterate users - only on INF or PAS msg */
+	while (user)
+	{
+		if (user_is_logged_in(user))
+		{
+			ret = route_to_user(hub, target, user->info);
+			if (!ret)
+				break;
+		}
+		user = (struct hub_user*) list_get_next(hub->users->list);
+	}
+
+#if 0
+	FIXME: FIXME FIXME handle send queue excess
+	if (!target->send_queue_size)
+	{
+	    user_flag_unset(target, flag_user_list);
+	}
+#endif
+	return ret;
+}
+
+void uman_send_quit_message(struct hub_info* hub, struct hub_user* leaving)
+{
+	struct adc_message* command = adc_msg_construct(ADC_CMD_IQUI, 6);
+	adc_msg_add_argument(command, (const char*) sid_to_string(leaving->id.sid));
+
+	if (leaving->quit_reason == quit_banned || leaving->quit_reason == quit_kicked)
+	{
+		adc_msg_add_argument(command, ADC_QUI_FLAG_DISCONNECT);
+	}
+	route_to_all(hub, command);
+	adc_msg_free(command);
+}
+
+sid_t uman_get_free_sid(struct hub_info* hub, struct hub_user* user)
+{
+	sid_t sid = sid_alloc(hub->users->sids, user);
+	user->id.sid = sid;
+	return sid;
+}
+

src/core/usermanager.h

@@ -0,0 +1,125 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2009, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef HAVE_UHUB_USER_MANAGER_H
+#define HAVE_UHUB_USER_MANAGER_H
+
+struct hub_user_manager
+{
+	size_t count;                   /**<< "Number of all fully connected and logged in users" */
+	size_t count_peak;              /**<< "Peak number of users" */
+	struct sid_pool* sids;
+	uint64_t shared_size;           /**<< "The total number of shared bytes among fully connected users." */
+	uint64_t shared_files;          /**<< "The total number of shared files among fully connected users." */
+	struct linked_list* list;       /**<< "Contains all logged in users" */
+	struct timeout_evt* timeout;    /**<< "Timeout handler for statistics" */
+};
+
+/**
+ * Initializes the user manager.
+ * @return 0 on success, or -1 if error (out of memory).
+ */
+extern int uman_init(struct hub_info* hub);
+
+/**
+ * Shuts down the user manager.
+ * All users will be disconnected and deleted as part of this.
+ *
+ * @return 0 on success, or -1 in an error occured (hub is invalid).
+ */
+extern int uman_shutdown(struct hub_info* hub);
+
+/**
+ * Generate statistics for logfiles.
+ */
+extern void uman_update_stats(struct hub_info* hub);
+extern void uman_print_stats(struct hub_info* hub);
+
+/**
+ * Add a user to the user manager.
+ *
+ * @param hub The hub to add the user to
+ * @param user The user to be added to the hub.
+ */
+extern int uman_add(struct hub_info* hub, struct hub_user* user);
+
+/**
+ * Remove a user from the user manager.
+ * This user is connected, and will be moved to the leaving queue, pending
+ * all messages in the message queue, and resource cleanup.
+ *
+ * @return 0 if successfully removed, -1 if error.
+ */
+extern int uman_remove(struct hub_info* hub, struct hub_user* user);
+
+/**
+ * Returns and allocates an unused session ID (SID).
+ */
+extern sid_t uman_get_free_sid(struct hub_info* hub, struct hub_user* user);
+
+/**
+ * Lookup a user based on the session ID (SID).
+ *
+ * NOTE: This function will only search connected users, which means
+ * that SIDs assigned to users who are not yet completely logged in,
+ * or are in the process of being disconnected will result in this 
+ * function returning NULL even though the sid is not freely available.
+ *
+ * FIXME: Is that really safe / sensible ?
+ * - Makes sense from a message routing point of view.
+ *
+ * @return a user if found, or NULL if not found
+ */
+extern struct hub_user* uman_get_user_by_sid(struct hub_info* hub, sid_t sid);
+
+/**
+ * Lookup a user based on the client ID (CID).
+ * @return a user if found, or NULL if not found
+ */
+extern struct hub_user* uman_get_user_by_cid(struct hub_info* hub, const char* cid);
+
+/**
+ * Lookup a user based on the nick name.
+ * @return a user if found, or NULL if not found
+ */
+extern struct hub_user* uman_get_user_by_nick(struct hub_info* hub, const char* nick);
+
+/**
+ * Lookup users based on an ip address range.
+ *
+ * @return The number of users matching the addressess, or -1 on error (mask is wrong).
+ */
+extern size_t uman_get_user_by_addr(struct hub_info* hub, struct linked_list* users, struct ip_range* range);
+
+/**
+ * Send the user list of connected clients to 'user'.
+ * Usually part of the login process.
+ *
+ * @return 1 if sending the user list succeeded, 0 otherwise.
+ */
+extern int uman_send_user_list(struct hub_info* hub, struct hub_user* user);
+
+/**
+ * Send a quit message to all connected users when 'user' is
+ * leaving the hub (for whatever reason).
+ */
+extern void uman_send_quit_message(struct hub_info* hub, struct hub_user* user);
+
+
+#endif /* HAVE_UHUB_USER_MANAGER_H */

src/network/backend.c

@@ -0,0 +1,229 @@
+/*
+ * uhub - A tiny ADC p2p connection hub
+ * Copyright (C) 2007-2010, Jan Vidar Krey
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "uhub.h"
+
+#include "network/connection.h"
+
+struct net_backend;
+struct net_connection;
+
+struct net_cleanup_handler
+{
+	size_t num;
+	size_t max;
+	struct net_connection** queue;
+};
+
+struct net_backend
+{
+	struct net_backend_common common;
+	time_t now; /* the time now (used for timeout handling) */
+	struct timeout_queue timeout_queue; /* used for timeout handling */
+	struct net_cleanup_handler* cleaner; /* handler to cleanup connections at a safe point */
+	struct net_backend_handler handler; /* backend event handler */
+	struct net_backend* data; /* backend specific data */
+};
+
+static struct net_backend* g_backend;
+
+
+#ifdef USE_EPOLL
+extern struct net_backend* net_backend_init_epoll(struct net_backend_handler*, struct net_backend_common*);
+#endif
+
+#ifdef USE_KQUEUE
+extern struct net_backend* net_backend_init_kqueue(struct net_backend_handler*, struct net_backend_common*);
+#endif
+
+#ifdef USE_SELECT
+extern struct net_backend* net_backend_init_select(struct net_backend_handler*, struct net_backend_common*);
+#endif
+
+static net_backend_init_t net_backend_init_funcs[] = {
+#ifdef USE_EPOLL
+	net_backend_init_epoll,
+#endif
+#ifdef USE_KQUEUE
+	net_backend_init_kqueue,
+#endif
+#ifdef USE_SELECT
+	net_backend_init_select,
+#endif
+	0
+};
+
+int net_backend_init()
+{
+	size_t n;
+	g_backend = hub_malloc_zero(sizeof(struct net_backend));
+	g_backend->common.num = 0;
+	g_backend->common.max = net_get_max_sockets();
+	g_backend->now = time(0);
+	timeout_queue_initialize(&g_backend->timeout_queue, g_backend->now, 120); /* FIXME: max 120 secs! */
+	g_backend->cleaner = net_cleanup_initialize(g_backend->common.max);
+
+	for (n = 0; net_backend_init_funcs[n]; n++)
+	{
+		g_backend->data = net_backend_init_funcs[n](&g_backend->handler, &g_backend->common);
+		if (g_backend->data)
+		{
+			LOG_DEBUG("Initialized %s network backend.", g_backend->handler.backend_name());
+			return 1;
+		}
+	}
+	LOG_FATAL("Unable to find a suitable network backend");
+	return 0;
+}
+
+void net_backend_shutdown()
+{
+	g_backend->handler.backend_shutdown(g_backend->data);
+	timeout_queue_shutdown(&g_backend->timeout_queue);
+	net_cleanup_shutdown(g_backend->cleaner);
+	hub_free(g_backend);
+	g_backend = 0;
+}
+
+
+void net_con_reinitialize(struct net_connection* con, net_connection_cb callback, const void* ptr, int events)
+{
+	con->callback = callback;
+	con->ptr = (void*) ptr;
+	net_con_update(con, events);
+}
+
+void net_con_update(struct net_connection* con, int events)
+{
+	g_backend->handler.con_mod(g_backend->data, con, events);
+}
+
+struct net_connection* net_con_create()
+{
+	return g_backend->handler.con_create(g_backend->data);
+}
+
+struct timeout_queue* net_backend_get_timeout_queue()
+{
+	if (!g_backend)
+		return 0;
+	return &g_backend->timeout_queue;
+}
+
+
+/**
+ * Process the network backend.
+ */
+int net_backend_process()
+{
+	int res;
+	size_t secs = timeout_queue_get_next_timeout(&g_backend->timeout_queue, g_backend->now);
+
+	res = g_backend->handler.backend_poll(g_backend->data, secs * 1000);
+
+	g_backend->now = time(0);
+	timeout_queue_process(&g_backend->timeout_queue, g_backend->now);
+
+	if (res == -1)
+	{
+		LOG_WARN("backend error.");
+		return 0;
+	}
+
+	g_backend->handler.backend_process(g_backend->data, res);
+
+	net_cleanup_process(g_backend->cleaner);
+	return 1;
+}
+
+time_t net_get_time()
+{
+	return g_backend->now;
+}
+
+
+void net_con_initialize(struct net_connection* con, int sd, net_connection_cb callback, const void* ptr, int events)
+{
+	g_backend->handler.con_init(g_backend->data, con, sd, callback, ptr);
+
+	net_set_nonblocking(con->sd, 1);
+	net_set_nosigpipe(con->sd, 1);
+
+	g_backend->handler.con_add(g_backend->data, con, events);
+	g_backend->common.num++;
+}
+
+void net_con_close(struct net_connection* con)
+{
+	if (con->flags & NET_CLEANUP)
+		return;
+
+	g_backend->common.num--;
+	net_con_clear_timeout(con);
+
+	g_backend->handler.con_del(g_backend->data, con);
+
+#ifdef SSL_SUPPORT
+	if (con->ssl)
+	{
+		SSL_shutdown(con->ssl);
+		SSL_clear(con->ssl);
+	}
+#endif
+
+	net_close(con->sd);
+	con->sd = -1;
+
+	net_cleanup_delayed_free(g_backend->cleaner, con);
+}
+
+struct net_cleanup_handler* net_cleanup_initialize(size_t max)
+{
+	struct net_cleanup_handler* handler = (struct net_cleanup_handler*) hub_malloc(sizeof(struct net_cleanup_handler));
+	handler->num = 0;
+	handler->max = max;
+	handler->queue = hub_malloc_zero(sizeof(struct net_connection*) * max);
+	return handler;
+}
+
+void net_cleanup_shutdown(struct net_cleanup_handler* handler)
+{
+	net_cleanup_process(handler);
+	hub_free(handler->queue);
+	hub_free(handler);
+}
+
+void net_cleanup_delayed_free(struct net_cleanup_handler* handler, struct net_connection* con)
+{
+	handler->queue[handler->num++] = con;
+	con->flags |= NET_CLEANUP;
+}
+
+void net_cleanup_process(struct net_cleanup_handler* handler)
+{
+	size_t n;
+	for (n = 0; n < handler->num; n++)
+	{
+		struct net_connection* con = handler->queue[n];
+		LOG_TRACE("net_cleanup_process: free: %p", con);
+		hub_free(con);
+	}
+	handler->num = 0;
+}
+