Added lots of asserts, and split out the ip address from the connection object.

Still a lot of work remains and a massive network connection cleanup is needed.

src/core/commands.c

@@ -290,7 +290,7 @@ static int command_version(struct hub_info* hub, struct hub_user* user, struct h
 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\"", net_con_get_peer_address(user->connection));
+	snprintf(tmp, 128, "Your address is \"%s\"", user_get_address(user));
 	return command_status(hub, user, cmd, tmp);
 }
 
@@ -304,7 +304,7 @@ static int command_getip(struct hub_info* hub, struct hub_user* user, struct hub
 	if (!target)
 		return command_status_user_not_found(hub, user, cmd, nick);
 
-	snprintf(tmp, 128, "%s has address \"%s\"", nick, net_con_get_peer_address(user->connection));
+	snprintf(tmp, 128, "%s has address \"%s\"", nick, user_get_address(user));
 	return command_status(hub, user, cmd, tmp);
 }
 
@@ -342,7 +342,7 @@ static int command_whoip(struct hub_info* hub, struct hub_user* user, struct hub
 	{
 		strcat(buffer, u->id.nick);
 		strcat(buffer, " (");
-		strcat(buffer, net_con_get_peer_address(u->connection));
+		strcat(buffer, user_get_address(u));
 		strcat(buffer, ")\n");
 		u = (struct hub_user*) list_get_next(users);
 	}

src/core/hub.c

@@ -1047,7 +1047,7 @@ void hub_logout_log(struct hub_info* hub, struct hub_user* user)
 	loginfo->time = time(NULL);
 	strcpy(loginfo->cid, user->id.cid);
 	strcpy(loginfo->nick, user->id.nick);
-	memcpy(&loginfo->addr, &user->connection->ipaddr, sizeof(struct ip_addr_encap));
+	memcpy(&loginfo->addr, &user->id.addr, sizeof(struct ip_addr_encap));
 	loginfo->reason = user->quit_reason;
 
 	list_append(hub->logout_info, loginfo);

src/core/hubevent.c

@@ -22,26 +22,26 @@
 static void log_user_login(struct hub_user* u)
 {
 	const char* cred = get_user_credential_string(u->credentials);
-	const char* addr = net_con_get_peer_address(u->connection);
+	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 = net_con_get_peer_address(u->connection);
+	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_logout(struct hub_user* u, const char* message)
 {
-	const char* addr = net_con_get_peer_address(u->connection);
+	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 = net_con_get_peer_address(u->connection);
+	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);
 }
 

src/core/inf.c

@@ -186,7 +186,7 @@ static int check_required_login_flags(struct hub_info* hub, struct hub_user* use
  */
 int check_network(struct hub_info* hub, struct hub_user* user, struct adc_message* cmd)
 {
-	const char* address = net_con_get_peer_address(user->connection);
+	const char* address = user_get_address(user);
 	
 	/* Check for NAT override address */
 	if (acl_is_ip_nat_override(hub->acl, address))

src/core/netevent.c

@@ -187,6 +187,14 @@ void net_event(struct net_connection* con, int event, void *arg)
 	struct hub_user* user = (struct hub_user*) arg;
 	int flag_close = 0;
 
+	if (event == NET_EVENT_DESTROYED)
+	{
+		printf("NET_EVENT_DESTROYED\n");
+		hub_free(user->connection);
+		user->connection = 0;
+		return;
+	}
+
 #ifdef DEBUG_SENDQ
 	LOG_TRACE("net_event() : fd=%d, ev=%d, arg=%p", fd, (int) event, arg);
 #endif

src/core/route.c

@@ -197,7 +197,7 @@ int route_info_message(struct hub_info* hub, struct hub_user* u)
 	else
 	{
 		struct adc_message* cmd = adc_msg_copy(u->info);
-		const char* address = net_con_get_peer_address(u->connection);
+		const char* address = user_get_address(u);
 		struct hub_user* user = 0;
 		
 		adc_msg_remove_named_argument(cmd, ADC_INF_FLAG_IPV4_ADDR);

src/core/user.c

@@ -51,9 +51,11 @@ struct hub_user* user_create(struct hub_info* hub, int sd, struct ip_addr_encap*
 	user->recv_queue = hub_recvq_create();
 
 	user->connection = (struct net_connection*) hub_malloc(sizeof(struct net_connection));
-	net_con_initialize(user->connection, sd, addr, net_event, user, NET_EVENT_READ);
+	net_con_initialize(user->connection, sd, net_event, user, NET_EVENT_READ);
 	net_con_set_timeout(user->connection, TIMEOUT_CONNECTED);
 
+	memcpy(&user->id.addr, addr, sizeof(struct ip_addr_encap));
+	
 	user_set_state(user, state_protocol);
 	return user;
 }
@@ -344,4 +346,7 @@ const char* user_get_quit_reason_string(enum user_quit_reason reason)
 	return "unknown";
 }
 
-
+const char* user_get_address(struct hub_user* user)
+{
+	return ip_convert_to_string(&user->id.addr);
+}

src/core/user.h

@@ -79,6 +79,7 @@ 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 */
 };
 
 /**
@@ -209,6 +210,8 @@ extern void user_support_add(struct hub_user* user, int fourcc);
  */
 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

src/core/usermanager.c

@@ -221,7 +221,7 @@ size_t uman_get_user_by_addr(struct hub_info* hub, struct linked_list* users, st
 	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->connection->ipaddr, range))
+		if (ip_in_range(&user->id.addr, range))
 		{
 			list_append(users, user);
 			num++;

src/network/connection.c

@@ -71,6 +71,8 @@ static void net_con_event(int fd, short ev, void *arg);
 
 void net_con_set(struct net_connection* con)
 {
+	uhub_assert(con);
+
 	int ev = 0;
 	if (net_con_flag_get(con, NET_WANT_READ | NET_WANT_SSL_READ))   ev |= EV_READ;
 	if (net_con_flag_get(con, NET_WANT_WRITE | NET_WANT_SSL_WRITE)) ev |= EV_WRITE;
@@ -147,13 +149,10 @@ static void net_con_event(int fd, short ev, void *arg)
 	}
 }
 
-const char* net_con_get_peer_address(struct net_connection* con)
+void net_con_initialize(struct net_connection* con, int sd, net_connection_cb callback, const void* ptr, int ev)
 {
-	 return ip_convert_to_string(&con->ipaddr);
+	uhub_assert(con);
-}
 
-void net_con_initialize(struct net_connection* con, int sd, struct ip_addr_encap* addr, net_connection_cb callback, const void* ptr, int ev)
-{
 	int events = net_con_convert_to_libevent_mask(ev);
 	if (ev & NET_EVENT_READ)  net_con_flag_set(con, NET_WANT_READ);
 	if (ev & NET_EVENT_WRITE) net_con_flag_set(con, NET_WANT_WRITE);
@@ -165,12 +164,6 @@ void net_con_initialize(struct net_connection* con, int sd, struct ip_addr_encap
 	con->last_send = time(0);
 	con->last_recv = con->last_send;
 
-	/** IP address of peer */
-	if (addr)
-	{
-		memcpy(&con->ipaddr, addr, sizeof(struct ip_addr_encap));
-	}
-
 	if (ev)
 	{
 		event_set(&con->event, con->sd, events, net_con_event, con);
@@ -191,6 +184,8 @@ void net_con_initialize(struct net_connection* con, int sd, struct ip_addr_encap
 
 void net_con_update(struct net_connection* con, int ev)
 {
+	uhub_assert(con);
+
 	if (ev & NET_EVENT_READ)
 		net_con_flag_set(con, NET_EVENT_READ);
 	else
@@ -209,6 +204,8 @@ void net_con_update(struct net_connection* con, int ev)
 
 void net_con_close(struct net_connection* con)
 {
+	uhub_assert(con);
+
 	if (net_con_flag_get(con, NET_CLEANUP))
 	{
 		LOG_INFO("Running net_con_close, but we already have closed...");
@@ -238,6 +235,8 @@ void net_con_close(struct net_connection* con)
 #ifdef SSL_SUPPORT
 static int handle_openssl_error(struct net_connection* con, int ret)
 {
+	uhub_assert(con);
+
 	int error = SSL_get_error(con->ssl, ret);
 	switch (error)
 	{
@@ -294,6 +293,8 @@ static int handle_openssl_error(struct net_connection* con, int ret)
 
 ssize_t net_con_send(struct net_connection* con, const void* buf, size_t len)
 {
+	uhub_assert(con);
+
 #ifdef SSL_SUPPORT
 	if (!con->ssl)
 	{
@@ -346,6 +347,8 @@ ssize_t net_con_send(struct net_connection* con, const void* buf, size_t len)
 
 ssize_t net_con_recv(struct net_connection* con, void* buf, size_t len)
 {
+	uhub_assert(con);
+
 #ifdef SSL_SUPPORT
 	if (!con->ssl)
 	{
@@ -391,6 +394,8 @@ ssize_t net_con_recv(struct net_connection* con, void* buf, size_t len)
 
 void net_con_set_timeout(struct net_connection* con, int seconds)
 {
+	uhub_assert(con);
+
 	struct timeval timeout = { seconds, 0 };
 	net_con_clear_timeout(con);
 
@@ -401,6 +406,8 @@ void net_con_set_timeout(struct net_connection* con, int seconds)
 
 void net_con_clear_timeout(struct net_connection* con)
 {
+	uhub_assert(con);
+
 	if (net_con_flag_get(con, NET_TIMER_ENABLED))
 	{
 		evtimer_del(&con->timeout);
@@ -412,6 +419,8 @@ void net_con_clear_timeout(struct net_connection* con)
 #ifdef SSL_SUPPORT
 ssize_t net_con_ssl_accept(struct net_connection* con)
 {
+	uhub_assert(con);
+
 	net_con_flag_set(con, NET_WANT_SSL_ACCEPT);
 	ssize_t ret = SSL_accept(con->ssl);
 #ifdef NETWORK_DUMP_DEBUG
@@ -431,6 +440,8 @@ ssize_t net_con_ssl_accept(struct net_connection* con)
 
 ssize_t net_con_ssl_connect(struct net_connection* con)
 {
+	uhub_assert(con);
+
 	net_con_flag_set(con, NET_WANT_SSL_CONNECT);
 	ssize_t ret = SSL_connect(con->ssl);
 #ifdef NETWORK_DUMP_DEBUG
@@ -450,6 +461,8 @@ ssize_t net_con_ssl_connect(struct net_connection* con)
 
 ssize_t net_con_ssl_handshake(struct net_connection* con, int ssl_mode)
 {
+	uhub_assert(con);
+
 	if (ssl_mode == NET_CON_SSL_MODE_SERVER)
 	{
 		con->ssl = SSL_new(g_hub->ssl_ctx);

src/network/connection.h

@@ -55,7 +55,6 @@ struct net_connection
 	net_connection_cb    callback;  /** Callback function */
 	struct event         event;     /** libevent struct for read/write events */
 	struct event         timeout;   /** Used for internal timeout handling */
-	struct ip_addr_encap ipaddr;    /** IP address of peer */
 	time_t               last_recv; /** Timestamp for last recv() */
 	time_t               last_send; /** Timestamp for last send() */
 #ifdef SSL_SUPPORT
@@ -64,7 +63,7 @@ struct net_connection
 #endif /*  SSL_SUPPORT */
 };
 
-extern void net_con_initialize(struct net_connection* con, int sd, struct ip_addr_encap*, net_connection_cb callback, const void* ptr, int events);
+extern void net_con_initialize(struct net_connection* con, int sd, net_connection_cb callback, const void* ptr, int events);
 extern void net_con_update(struct net_connection* con, int events);
 
 /**
@@ -101,12 +100,6 @@ extern ssize_t net_con_recv(struct net_connection* con, void* buf, size_t len);
 extern void net_con_set_timeout(struct net_connection* con, int seconds);
 extern void net_con_clear_timeout(struct net_connection* con);
 
-/**
- * Returns a string representation of the ipaddr member.
- * NOTE: Static buffer.
- */
-extern const char* net_con_get_peer_address(struct net_connection* con);
-
 #ifdef SSL_SUPPORT
 /**
  * Start SSL_accept()