166 lines
3.2 KiB
C
166 lines
3.2 KiB
C
/*
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connection.c -- connection list management
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Copyright (C) 2000-2007 Guus Sliepen <guus@tinc-vpn.org>,
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2000-2005 Ivo Timmermans
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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$Id$
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*/
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#include "system.h"
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#include "avl_tree.h"
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#include "conf.h"
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#include "list.h"
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#include "logger.h"
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#include "net.h" /* Don't ask. */
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#include "netutl.h"
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#include "subnet.h"
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#include "utils.h"
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#include "xalloc.h"
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avl_tree_t *connection_tree; /* Meta connections */
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connection_t *broadcast;
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static int connection_compare(const connection_t *a, const connection_t *b)
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{
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return (void *)a - (void *)b;
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}
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void init_connections(void)
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{
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cp();
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connection_tree = avl_alloc_tree((avl_compare_t) connection_compare, (avl_action_t) free_connection);
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broadcast = new_connection();
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broadcast->name = xstrdup(_("everyone"));
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broadcast->hostname = xstrdup(_("BROADCAST"));
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}
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void exit_connections(void)
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{
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cp();
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avl_delete_tree(connection_tree);
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free_connection(broadcast);
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}
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connection_t *new_connection(void)
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{
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connection_t *c;
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cp();
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c = xmalloc_and_zero(sizeof(connection_t));
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if(!c)
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return NULL;
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gettimeofday(&c->start, NULL);
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return c;
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}
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void free_connection(connection_t *c)
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{
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cp();
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if(c->name)
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free(c->name);
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if(c->hostname)
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free(c->hostname);
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if(c->inkey)
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free(c->inkey);
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if(c->outkey)
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free(c->outkey);
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if(c->inctx) {
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EVP_CIPHER_CTX_cleanup(c->inctx);
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free(c->inctx);
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}
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if(c->outctx) {
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EVP_CIPHER_CTX_cleanup(c->outctx);
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free(c->outctx);
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}
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if(c->mychallenge)
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free(c->mychallenge);
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if(c->hischallenge)
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free(c->hischallenge);
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if(c->config_tree)
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exit_configuration(&c->config_tree);
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if(c->outbuf)
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free(c->outbuf);
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if(c->rsa_key)
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RSA_free(c->rsa_key);
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free(c);
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}
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void connection_add(connection_t *c)
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{
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cp();
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avl_insert(connection_tree, c);
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}
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void connection_del(connection_t *c)
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{
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cp();
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avl_delete(connection_tree, c);
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}
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void dump_connections(void)
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{
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avl_node_t *node;
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connection_t *c;
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cp();
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logger(LOG_DEBUG, _("Connections:"));
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for(node = connection_tree->head; node; node = node->next) {
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c = node->data;
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logger(LOG_DEBUG, _(" %s at %s options %lx socket %d status %04x outbuf %d/%d/%d"),
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c->name, c->hostname, c->options, c->socket, c->status.value,
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c->outbufsize, c->outbufstart, c->outbuflen);
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}
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logger(LOG_DEBUG, _("End of connections."));
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}
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bool read_connection_config(connection_t *c)
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{
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char *fname;
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int x;
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cp();
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asprintf(&fname, "%s/hosts/%s", confbase, c->name);
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x = read_config_file(c->config_tree, fname);
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free(fname);
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return x == 0;
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}
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