2 connection.c -- connection list management
3 Copyright (C) 2000-2009 Guus Sliepen <guus@tinc-vpn.org>,
4 2000-2005 Ivo Timmermans
5 2008 Max Rijevski <maksuf@gmail.com>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #include "net.h" /* Don't ask. */
34 avl_tree_t *connection_tree; /* Meta connections */
35 connection_t *broadcast;
37 static int connection_compare(const connection_t *a, const connection_t *b) {
38 return a < b ? -1 : a == b ? 0 : 1;
41 void init_connections(void) {
42 connection_tree = avl_alloc_tree((avl_compare_t) connection_compare, (avl_action_t) free_connection);
43 broadcast = new_connection();
44 broadcast->name = xstrdup("everyone");
45 broadcast->hostname = xstrdup("BROADCAST");
48 void exit_connections(void) {
49 avl_delete_tree(connection_tree);
50 free_connection(broadcast);
53 connection_t *new_connection(void) {
56 c = xmalloc_and_zero(sizeof(connection_t));
61 gettimeofday(&c->start, NULL);
66 void free_connection(connection_t *c) {
80 EVP_CIPHER_CTX_cleanup(c->inctx);
85 EVP_CIPHER_CTX_cleanup(c->outctx);
93 free(c->hischallenge);
96 exit_configuration(&c->config_tree);
102 RSA_free(c->rsa_key);
107 void connection_add(connection_t *c) {
108 avl_insert(connection_tree, c);
111 void connection_del(connection_t *c) {
112 avl_delete(connection_tree, c);
115 void dump_connections(void) {
119 logger(LOG_DEBUG, "Connections:");
121 for(node = connection_tree->head; node; node = node->next) {
123 logger(LOG_DEBUG, " %s at %s options %x socket %d status %04x outbuf %d/%d/%d",
124 c->name, c->hostname, c->options, c->socket, bitfield_to_int(&c->status, sizeof c->status),
125 c->outbufsize, c->outbufstart, c->outbuflen);
128 logger(LOG_DEBUG, "End of connections.");
131 bool read_connection_config(connection_t *c) {
135 xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
136 x = read_config_file(c->config_tree, fname);