/*
connection.c -- connection list management
- Copyright (C) 2000-2002 Guus Sliepen <guus@sliepen.warande.net>,
- 2000-2002 Ivo Timmermans <itimmermans@bigfoot.com>
+ Copyright (C) 2000-2007 Guus Sliepen <guus@tinc-vpn.org>,
+ 2000-2005 Ivo Timmermans
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: connection.c,v 1.1.2.28 2002/02/18 16:25:16 guus Exp $
+ $Id$
*/
-#include "config.h"
-
-#include <stdio.h>
-#include <syslog.h>
-#include <string.h>
-#include <sys/time.h>
-
-#include <avl_tree.h>
-#include <list.h>
+#include "system.h"
-#include "net.h" /* Don't ask. */
-#include "netutl.h"
-#include "config.h"
+#include "splay_tree.h"
+#include "cipher.h"
#include "conf.h"
-#include <utils.h>
+#include "list.h"
+#include "logger.h"
+#include "net.h" /* Don't ask. */
+#include "netutl.h"
#include "subnet.h"
-
+#include "utils.h"
#include "xalloc.h"
-#include "system.h"
-avl_tree_t *connection_tree; /* Meta connections */
+splay_tree_t *connection_tree; /* Meta connections */
+connection_t *broadcast;
-int connection_compare(connection_t *a, connection_t *b)
-{
- return a - b;
+static int connection_compare(const connection_t *a, const connection_t *b) {
+ return (void *)a - (void *)b;
}
-void init_connections(void)
-{
-cp
- connection_tree = avl_alloc_tree((avl_compare_t)connection_compare, NULL);
-cp
-}
+void init_connections(void) {
+ cp();
-void exit_connections(void)
-{
-cp
- avl_delete_tree(connection_tree);
-cp
+ connection_tree = splay_alloc_tree((splay_compare_t) connection_compare, (splay_action_t) free_connection);
+ broadcast = new_connection();
+ broadcast->name = xstrdup(_("everyone"));
+ broadcast->hostname = xstrdup(_("BROADCAST"));
}
-connection_t *new_connection(void)
-{
- connection_t *c;
-cp
- c = (connection_t *)xmalloc_and_zero(sizeof(connection_t));
+void exit_connections(void) {
+ cp();
+
+ splay_delete_tree(connection_tree);
+ free_connection(broadcast);
+}
- if(!c)
- return NULL;
+connection_t *new_connection(void) {
+ cp();
- gettimeofday(&c->start, NULL);
-cp
- return c;
+ return xmalloc_and_zero(sizeof(connection_t));
}
-void free_connection(connection_t *c)
-{
-cp
- if(c->hostname)
- free(c->hostname);
- if(c->inkey)
- free(c->inkey);
- if(c->outkey)
- free(c->outkey);
- if(c->mychallenge)
- free(c->mychallenge);
- if(c->hischallenge)
- free(c->hischallenge);
- free(c);
-cp
+void free_connection(connection_t *c) {
+ cp();
+
+ if(!c)
+ return;
+
+ if(c->name)
+ free(c->name);
+
+ if(c->hostname)
+ free(c->hostname);
+
+ cipher_close(&c->incipher);
+ cipher_close(&c->outcipher);
+
+ if(c->hischallenge)
+ free(c->hischallenge);
+
+ if(c->buffer)
+ bufferevent_free(c->buffer);
+
+ if(event_initialized(&c->inevent))
+ event_del(&c->inevent);
+
+ free(c);
}
-void connection_add(connection_t *c)
-{
-cp
- avl_insert(connection_tree, c);
-cp
+void connection_add(connection_t *c) {
+ cp();
+
+ splay_insert(connection_tree, c);
}
-void connection_del(connection_t *c)
-{
-cp
- avl_delete(connection_tree, c);
-cp
+void connection_del(connection_t *c) {
+ cp();
+
+ splay_delete(connection_tree, c);
}
-void dump_connections(void)
-{
- avl_node_t *node;
- connection_t *c;
-cp
- syslog(LOG_DEBUG, _("Connections:"));
-
- for(node = connection_tree->head; node; node = node->next)
- {
- c = (connection_t *)node->data;
- syslog(LOG_DEBUG, _(" %s at %s options %ld socket %d status %04x"),
- c->name, c->hostname, c->options, c->socket, c->status);
- }
-
- syslog(LOG_DEBUG, _("End of connections."));
-cp
+int dump_connections(struct evbuffer *out) {
+ splay_node_t *node;
+ connection_t *c;
+
+ cp();
+
+ for(node = connection_tree->head; node; node = node->next) {
+ c = node->data;
+ if(evbuffer_add_printf(out,
+ _(" %s at %s options %lx socket %d status %04x\n"),
+ c->name, c->hostname, c->options, c->socket,
+ c->status.value) == -1)
+ return errno;
+ }
+
+ return 0;
}
-int read_connection_config(connection_t *c)
-{
- char *fname;
- int x;
-cp
- asprintf(&fname, "%s/hosts/%s", confbase, c->name);
- x = read_config_file(c->config_tree, fname);
- free(fname);
-cp
- return x;
+bool read_connection_config(connection_t *c) {
+ char *fname;
+ int x;
+
+ cp();
+
+ asprintf(&fname, "%s/hosts/%s", confbase, c->name);
+ x = read_config_file(c->config_tree, fname);
+ free(fname);
+
+ return x == 0;
}