2 connection.c -- connection list management
3 Copyright (C) 2000-2009 Guus Sliepen <guus@tinc-vpn.org>,
4 2000-2005 Ivo Timmermans
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
27 #include "net.h" /* Don't ask. */
33 avl_tree_t *connection_tree; /* Meta connections */
34 connection_t *broadcast;
36 static int connection_compare(const connection_t *a, const connection_t *b) {
37 return a < b ? -1 : a == b ? 0 : 1;
40 void init_connections(void) {
41 connection_tree = avl_alloc_tree((avl_compare_t) connection_compare, (avl_action_t) free_connection);
42 broadcast = new_connection();
43 broadcast->name = xstrdup("everyone");
44 broadcast->hostname = xstrdup("BROADCAST");
47 void exit_connections(void) {
48 avl_delete_tree(connection_tree);
49 free_connection(broadcast);
52 connection_t *new_connection(void) {
55 c = xmalloc_and_zero(sizeof(connection_t));
60 gettimeofday(&c->start, NULL);
65 void free_connection(connection_t *c) {
79 EVP_CIPHER_CTX_cleanup(c->inctx);
84 EVP_CIPHER_CTX_cleanup(c->outctx);
92 free(c->hischallenge);
95 exit_configuration(&c->config_tree);
101 RSA_free(c->rsa_key);
106 void connection_add(connection_t *c) {
107 avl_insert(connection_tree, c);
110 void connection_del(connection_t *c) {
111 avl_delete(connection_tree, c);
114 void dump_connections(void) {
118 logger(LOG_DEBUG, "Connections:");
120 for(node = connection_tree->head; node; node = node->next) {
122 logger(LOG_DEBUG, " %s at %s options %lx socket %d status %04x outbuf %d/%d/%d",
123 c->name, c->hostname, c->options, c->socket, bitfield_to_int(&c->status, sizeof c->status),
124 c->outbufsize, c->outbufstart, c->outbuflen);
127 logger(LOG_DEBUG, "End of connections.");
130 bool read_connection_config(connection_t *c) {
134 xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
135 x = read_config_file(c->config_tree, fname);