Commit Graph

600 Commits

Author SHA1 Message Date
Jan Vidar Krey 46bdc77066 Added a notification mechanism for sending messages from
another thread to the mainthread in a safe manner.

This is used for the DNS lookup code, and can also
be used by the signal handler to safely report actions back
to the application mainloop without using global variables.
2014-08-05 16:21:56 +02:00
Jan Vidar Krey 1526d63403 Simplify list_clear(), allow NULL as free() function pointer.
This makes it redundant to create a null_free() or dummy_free() function
that does nothing.
2014-08-05 13:08:46 +02:00
klondike d33695435b Add propper check for stdint.h 2014-08-05 10:48:42 +02:00
klondike bfdf707490 Remove unnecessary include 2014-08-05 10:48:34 +02:00
klondike b8209d9d0a Check for ssize_t properly 2014-08-05 10:48:26 +02:00
klondike 5c8d99d8ff _GNU_SOURCE is now defined by CMake 2014-08-05 10:48:10 +02:00
klondike 4c5038c26d Add automatic strndup detection instead of the previous hack 2014-08-05 10:48:01 +02:00
klondike aeb006beb6 Add automatic memmem detction instead of the previous hack 2014-08-05 10:47:49 +02:00
klondike 3b6c338ee8 Start generating system.h dynamicallly 2014-08-05 10:47:29 +02:00
Jan Vidar Krey 652ac5f9b9 Fix #211 - ADC IINF should have flag AP for application name, and VE for version.
x# Please enter the commit message for your changes. Lines starting
2014-08-03 22:51:47 +02:00
Jan Vidar Krey 4263750bc5 Merge branch 'ssl_fixes' 2014-07-30 11:47:27 +02:00
Jan Vidar Krey 2182feb052 Added support for probing HTTP, enough to tell browsers to stop calling. 2014-07-30 11:46:54 +02:00
Jan Vidar Krey b5bedfe9e4 uhub-admin: don't busy loop before a connection has been established.
This happened due to the network polling mechanism had nothing to poll
for, so it returned immediately only to be called again (during DNS lookup).

This fix introduces a control pipe that is polled for reading, althoug nothing
is ever sent to that pipe. But, it can be used instead of the signal
handler approach which is currently used for terminating the program.
2014-07-29 17:35:58 +02:00
Jan Vidar Krey cbe0b4e108 Potential crash fix for tools. 2014-07-29 17:35:14 +02:00
Jan Vidar Krey b85381c0f5 Added configuration options for TLS cipher suites and TLS versions. 2014-07-29 13:31:42 +02:00
Hector Martin 0426cb523a Fix: Rework SSL poll event handling to avoid infinite loops
The downstream connection callback must only be invoked when the event
that SSL requests for the connection to make progress has actually
occured. Otherwise, the downstream callback might do nothing but
re-queue an unrelated event (e.g. in user_net_io_want_write), and the
event loop comes around instantly while making no progress. Track the
SSL-requested events separately and deliver the required downstream
event when they fire.

Sample strace:

epoll_wait(0, {{EPOLLIN, {u32=96, u64=96}}}, 91, 10000) = 1
: net_ssl_callback in state tls_st_need_write calls cb NET_EVENT_WRITE
: User writes data, OpenSSL tries to write data
write(96, <snip>..., 170) = -1 EAGAIN (Resource temporarily unavailable)
: handle_openssl_error requests NET_EVENT_WRITE
epoll_ctl(0, EPOLL_CTL_MOD, 96, {EPOLLOUT, {u32=96, u64=96}}) = 0
: User callback then requests NET_EVENT_READ|NET_EVENT_WRITE
epoll_ctl(0, EPOLL_CTL_MOD, 96, {EPOLLIN|EPOLLOUT, {u32=96, u64=96}}) =
: Data available for *reading*
epoll_wait(0, {{EPOLLIN, {u32=96, u64=96}}}, 91, 10000) = 1
: net_ssl_callback in state tls_st_need_write calls cb NET_EVENT_WRITE
: again...
2014-07-29 12:09:07 +02:00
Jan Vidar Krey 9f78a2e85f Merge branch 'master' of github.com:janvidar/uhub 2014-05-30 15:06:23 +02:00
Jan Vidar Krey f472fc9424 Fix Clang compile warnings. 2014-05-14 21:00:42 +02:00
Jan Vidar Krey 7706e1cb8a Fix copyright year. 2014-05-14 11:39:18 +02:00
Jan Vidar Krey 24b98358d3 Remove usage of strcat, since OpenBSD does not like that. 2014-05-14 11:00:18 +02:00
Jan Vidar Krey 5e06b46deb Fix compile warning due to missing newline at EOF. 2014-05-14 11:00:04 +02:00
Jan Vidar Krey e2b0757f4a Improved flood control counting to strictly not allow more than
the given amount of messages in the configured interval.

The previous behavior allowed n+2 messages in the interval, due to
two off by one comparison rules.

In addition, if flooding is detected then each new message after the flooding
is detected will reset the interval timer, which means the client
cannot send another message until the timeout interval expires.
2014-05-08 13:30:09 +02:00
Tillmann Karras c295461f4e mod_topic: check argument for NULL
Better safe than sorry.
2013-09-10 08:30:27 +02:00
Tillmann Karras 8b442018a7 Fix struct mixup 2013-09-06 21:17:43 +02:00
Tillmann Karras fa782e3d2c Fix memleak 2013-09-06 21:17:31 +02:00
Tilka 591d0ba5bb Support certificate chains 2013-09-06 01:44:25 +02:00
Tilka a81757c483 Merge remote-tracking branch 'upstream/master' 2013-09-06 01:43:10 +02:00
Jan Vidar Krey cf9be754aa Rewrote the configuration file parser generator.
Converted from Perl to Python for a better
and cleaner object oriented design.
2013-04-22 21:58:06 +02:00
Jan Vidar Krey 73b4d51393 fixup! fixup! Updated copyright year. 2013-03-24 20:17:51 +01:00
Jan Vidar Krey 50b6221874 fixup! Updated copyright year. 2013-03-24 20:17:51 +01:00
Jan Vidar Krey bb5865d368 Fix double free() 2013-03-24 09:47:32 +01:00
Jan Vidar Krey 550740f715 Fix bug #198 - Timers could cause infinite loops
This could essentially happen due to time drift,
high load, or the process being put in sleep for a while.

The reason is that recurring timers could be added to the same time slot
as the timeslot being handled.
2013-03-24 09:47:32 +01:00
mimicmod 5672ba14e3 Added mod_chat_history_sqlite and mod_chat_is_privileged.
Use file=/path/to/db to specify the database file where chat history should be stored. Other config variables are the same as those for mod_chat_history.

Code merged adapted and merged from Mimicmod's repository:
https://github.com/mimicmod/uhub.git
2013-03-23 22:47:32 +01:00
Jan Vidar Krey cd5c4ee622 Optimize lookups by CID and nick.
This used to be a linear search O(n), but is now done
as a red-black tree O(log n) instead.

These operations can be further opimized with a hash-table
which would acheive near constant time lookups.
2013-03-23 22:11:05 +01:00
Jan Vidar Krey 52211a6bac Updated copyright year. 2013-03-22 20:00:40 +01:00
Jan Vidar Krey f25015927a Clean up white space. 2013-03-22 20:00:40 +01:00
Jan Vidar Krey 5835a06676 Removed redundant debug printf. 2013-03-22 20:00:40 +01:00
Jan Vidar Krey 6c55ae1146 Simple compile fix. 2013-03-22 20:00:40 +01:00
Jan Vidar Krey 2d6f69d299 Cleaned up usage of linked lists and added missing functionality.
- Added a list_remove_first() which is generally better than list_remove()
  provided you want to remove the first element.
- Added a list_append_list() to append and move all nodes from one list to
  another.
2013-03-22 20:00:40 +01:00
Jan Vidar Krey b81bb2cbd9 Cleaned up all list iterations, added macro named LIST_FOREACH.
Previously you would have to do something like this:

for (type foo = (type) list_get_first(list); foo; foo = (type) list_get_next(list)
{
    /* code */
}

Now, you can instead write this as:

LIST_FOREACH(type, foo, list,
{
    /* code */
})

Basically, boilerplate stuff including the casting is gone.
2013-03-22 00:58:14 +01:00
Jan Vidar Krey 1fbde2b0fd Re-factored the ADC client code to use the new connection establishment API. 2013-02-05 22:43:59 +01:00
Jan Vidar Krey 92b65a0e14 Created a connection establishment API.
This API provides transparent asynchronous DNS lookups
with both IPv4 and IPv6 support, and in addition will try
to connect to all addresses until one of them work.

This implements the "happy eyeballs" algorithm provided that the client supports IPv6
and that the DNS records provides both IPv6 and IPv4 addresses.
2013-02-05 22:40:20 +01:00
Jan Vidar Krey 4d438e1e90 Don't poll the connection monitor if there are no connections added.
This caused the backends to return an error code, which
in turn ended the mainloop. However, several other things
also might occur in the main loop, such as DNS lookups which
come prior to creating any connections that in turn would be monitored.
2013-02-05 22:38:13 +01:00
Jan Vidar Krey 4f3c71234b Merge branch 'master' of https://github.com/3M3RY/uhub 2012-11-22 22:26:46 +01:00
Boris Pek b452488431 Fix build in Debian GNU/Hurd. 2012-11-20 22:41:38 +02:00
Emery 143b68588a Systemd notify support 2012-11-17 09:57:14 -06:00
Emery ce68c446d1 Optional systemd journal logging 2012-11-11 15:21:00 -06:00
Tillmann Karras 37c80fd403 rename !cleartopic to !resettopic
The command resets the topic to the default as configured in uhub.conf.
"clear" wrongly implies that the topic will be emptied.

Also added a plugin description in plugins.conf.
2012-11-08 15:14:58 +01:00
Tillmann Karras dcc7aa4018 some regex adjustments
IP addresses are now checked for correct charset rather than allowing
everything.
2012-11-08 12:36:37 +01:00
Tilka 9dce6693f6 fix error messages and comments 2012-11-08 12:27:08 +01:00