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.
24 #include "splay_tree.h"
29 #include "net.h" /* Don't ask. */
35 splay_tree_t *connection_tree; /* Meta connections */
36 connection_t *broadcast;
38 static int connection_compare(const connection_t *a, const connection_t *b) {
39 return a < b ? -1 : a == b ? 0 : 1;
42 void init_connections(void) {
43 connection_tree = splay_alloc_tree((splay_compare_t) connection_compare, (splay_action_t) free_connection);
44 broadcast = new_connection();
45 broadcast->name = xstrdup("everyone");
46 broadcast->hostname = xstrdup("BROADCAST");
49 void exit_connections(void) {
50 splay_delete_tree(connection_tree);
51 free_connection(broadcast);
54 connection_t *new_connection(void) {
55 return xmalloc_and_zero(sizeof(connection_t));
58 void free_connection(connection_t *c) {
68 cipher_close(&c->incipher);
69 cipher_close(&c->outcipher);
72 free(c->hischallenge);
75 exit_configuration(&c->config_tree);
78 bufferevent_free(c->buffer);
80 if(event_initialized(&c->inevent))
81 event_del(&c->inevent);
86 void connection_add(connection_t *c) {
87 splay_insert(connection_tree, c);
90 void connection_del(connection_t *c) {
91 splay_delete(connection_tree, c);
94 int dump_connections(struct evbuffer *out) {
98 for(node = connection_tree->head; node; node = node->next) {
100 if(evbuffer_add_printf(out,
101 " %s at %s options %lx socket %d status %04x\n",
102 c->name, c->hostname, c->options, c->socket,
103 bitfield_to_int(&c->status, sizeof c->status)) == -1)
110 bool read_connection_config(connection_t *c) {
114 xasprintf(&fname, "%s/hosts/%s", confbase, c->name);
115 x = read_config_file(c->config_tree, fname);