2 connection.c -- connection list management
3 Copyright (C) 2000-2012 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"
27 #include "control_common.h"
34 splay_tree_t *connection_tree; /* Meta connections */
35 connection_t *everyone;
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 = splay_alloc_tree((splay_compare_t) connection_compare, (splay_action_t) free_connection);
43 everyone = new_connection();
44 everyone->name = xstrdup("everyone");
45 everyone->hostname = xstrdup("BROADCAST");
48 void exit_connections(void) {
49 splay_delete_tree(connection_tree);
50 free_connection(everyone);
53 connection_t *new_connection(void) {
54 return xmalloc_and_zero(sizeof(connection_t));
57 void free_connection_partially(connection_t *c) {
58 cipher_close(&c->incipher);
59 digest_close(&c->indigest);
60 cipher_close(&c->outcipher);
61 digest_close(&c->outdigest);
63 sptps_stop(&c->sptps);
64 ecdsa_free(&c->ecdsa);
68 free(c->hischallenge);
70 buffer_clear(&c->inbuf);
71 buffer_clear(&c->outbuf);
73 if(event_initialized(&c->inevent))
74 event_del(&c->inevent);
76 if(event_initialized(&c->outevent))
77 event_del(&c->outevent);
80 closesocket(c->socket);
85 void free_connection(connection_t *c) {
89 free_connection_partially(c);
95 exit_configuration(&c->config_tree);
100 void connection_add(connection_t *c) {
101 splay_insert(connection_tree, c);
104 void connection_del(connection_t *c) {
105 splay_delete(connection_tree, c);
108 bool dump_connections(connection_t *cdump) {
112 for(node = connection_tree->head; node; node = node->next) {
114 send_request(cdump, "%d %d %s at %s options %x socket %d status %04x",
115 CONTROL, REQ_DUMP_CONNECTIONS,
116 c->name, c->hostname, c->options, c->socket,
117 bitfield_to_int(&c->status, sizeof c->status));
120 return send_request(cdump, "%d %d", CONTROL, REQ_DUMP_CONNECTIONS);