/*
connection.c -- connection list management
- Copyright (C) 2000,2001 Guus Sliepen <guus@sliepen.warande.net>,
- 2000,2001 Ivo Timmermans <itimmermans@bigfoot.com>
+ Copyright (C) 2000-2009 Guus Sliepen <guus@tinc-vpn.org>,
+ 2000-2005 Ivo Timmermans
+ 2008 Max Rijevski <maksuf@gmail.com>
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
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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id: connection.c,v 1.1.2.24 2001/10/30 16:34:32 guus Exp $
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#include "config.h"
-
-#include <stdio.h>
-#include <syslog.h>
-#include <string.h>
-#include <sys/time.h>
-
-#include <avl_tree.h>
-#include <list.h>
+#include "system.h"
-#include "net.h" /* Don't ask. */
-#include "netutl.h"
-#include "config.h"
+#include "avl_tree.h"
#include "conf.h"
-#include <utils.h>
+#include "list.h"
+#include "logger.h"
+#include "net.h" /* Don't ask. */
+#include "netutl.h"
#include "subnet.h"
-
+#include "utils.h"
#include "xalloc.h"
-#include "system.h"
avl_tree_t *connection_tree; /* Meta connections */
+connection_t *broadcast;
-int connection_compare(connection_t *a, connection_t *b)
-{
- return a->socket - b->socket;
+static int connection_compare(const connection_t *a, const connection_t *b) {
+ return a < b ? -1 : a == b ? 0 : 1;
}
-void init_connections(void)
-{
-cp
- connection_tree = avl_alloc_tree((avl_compare_t)connection_compare, NULL);
-cp
+void init_connections(void) {
+ connection_tree = avl_alloc_tree((avl_compare_t) connection_compare, (avl_action_t) free_connection);
+ broadcast = new_connection();
+ broadcast->name = xstrdup("everyone");
+ broadcast->hostname = xstrdup("BROADCAST");
}
-void exit_connections(void)
-{
-cp
- avl_delete_tree(connection_tree);
-cp
+void exit_connections(void) {
+ avl_delete_tree(connection_tree);
+ free_connection(broadcast);
}
-connection_t *new_connection(void)
-{
- connection_t *c;
-cp
- c = (connection_t *)xmalloc_and_zero(sizeof(connection_t));
+connection_t *new_connection(void) {
+ connection_t *c;
+
+ c = xmalloc_and_zero(sizeof(connection_t));
+
+ if(!c)
+ return NULL;
- if(!c)
- return NULL;
+ gettimeofday(&c->start, NULL);
- gettimeofday(&c->start, NULL);
-cp
- return c;
+ return c;
}
-void free_connection(connection_t *c)
-{
-cp
- if(c->hostname)
- free(c->hostname);
- if(c->inkey)
- free(c->inkey);
- if(c->outkey)
- free(c->outkey);
- if(c->mychallenge)
- free(c->mychallenge);
- if(c->hischallenge)
- free(c->hischallenge);
- free(c);
-cp
+void free_connection(connection_t *c) {
+ if(c->name)
+ free(c->name);
+
+ if(c->hostname)
+ free(c->hostname);
+
+ if(c->inkey)
+ free(c->inkey);
+
+ if(c->outkey)
+ free(c->outkey);
+
+ if(c->inctx) {
+ EVP_CIPHER_CTX_cleanup(c->inctx);
+ free(c->inctx);
+ }
+
+ if(c->outctx) {
+ EVP_CIPHER_CTX_cleanup(c->outctx);
+ free(c->outctx);
+ }
+
+ if(c->mychallenge)
+ free(c->mychallenge);
+
+ if(c->hischallenge)
+ free(c->hischallenge);
+
+ if(c->config_tree)
+ exit_configuration(&c->config_tree);
+
+ if(c->outbuf)
+ free(c->outbuf);
+
+ if(c->rsa_key)
+ RSA_free(c->rsa_key);
+
+ free(c);
}
-void connection_add(connection_t *c)
-{
-cp
- avl_insert(connection_tree, c);
-cp
+void connection_add(connection_t *c) {
+ avl_insert(connection_tree, c);
}
-void connection_del(connection_t *c)
-{
-cp
- avl_delete(connection_tree, c);
-cp
+void connection_del(connection_t *c) {
+ avl_delete(connection_tree, c);
}
-connection_t *lookup_connection(ipv4_t address, short unsigned int port)
-{
- connection_t c;
-cp
- c.address = address;
- c.port = port;
+void dump_connections(void) {
+ avl_node_t *node;
+ connection_t *c;
- return avl_search(connection_tree, &c);
-}
+ logger(LOG_DEBUG, "Connections:");
-void dump_connections(void)
-{
- avl_node_t *node;
- connection_t *c;
-cp
- syslog(LOG_DEBUG, _("Connections:"));
-
- for(node = connection_tree->head; node; node = node->next)
- {
- c = (connection_t *)node->data;
- syslog(LOG_DEBUG, _(" %s at %s port %hd options %ld socket %d status %04x"),
- c->name, c->hostname, c->port, c->options,
- c->socket, c->status);
- }
-
- syslog(LOG_DEBUG, _("End of connections."));
-cp
+ for(node = connection_tree->head; node; node = node->next) {
+ c = node->data;
+ logger(LOG_DEBUG, " %s at %s options %lx socket %d status %04x outbuf %d/%d/%d",
+ c->name, c->hostname, c->options, c->socket, bitfield_to_int(&c->status, sizeof c->status),
+ c->outbufsize, c->outbufstart, c->outbuflen);
+ }
+
+ logger(LOG_DEBUG, "End of connections.");
}
-int read_connection_config(connection_t *c)
-{
- char *fname;
- int x;
-cp
- asprintf(&fname, "%s/hosts/%s", confbase, c->name);
- x = read_config_file(c->config_tree, fname);
- free(fname);
-cp
- return x;
+bool read_connection_config(connection_t *c) {
+ char *fname;
+ int x;
+
+ xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
+ x = read_config_file(c->config_tree, fname);
+ free(fname);
+
+ return x == 0;
}
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