/*
connection.c -- connection list management
- Copyright (C) 2000-2007 Guus Sliepen <guus@tinc-vpn.org>,
+ Copyright (C) 2000-2012 Guus Sliepen <guus@tinc-vpn.org>,
2000-2005 Ivo Timmermans
+ 2008 Max Rijevski <maksuf@gmail.com>
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
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- $Id$
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "system.h"
#include "splay_tree.h"
#include "cipher.h"
#include "conf.h"
+#include "control_common.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"
splay_tree_t *connection_tree; /* Meta connections */
-connection_t *broadcast;
+connection_t *everyone;
static int connection_compare(const connection_t *a, const connection_t *b) {
- return (void *)a - (void *)b;
+ return a < b ? -1 : a == b ? 0 : 1;
}
void init_connections(void) {
- 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"));
+ everyone = new_connection();
+ everyone->name = xstrdup("everyone");
+ everyone->hostname = xstrdup("BROADCAST");
}
void exit_connections(void) {
- cp();
-
splay_delete_tree(connection_tree);
- free_connection(broadcast);
+ free_connection(everyone);
}
connection_t *new_connection(void) {
- cp();
-
return xmalloc_and_zero(sizeof(connection_t));
}
-void free_connection(connection_t *c) {
- cp();
-
- if(!c)
- return;
-
- if(c->name)
- free(c->name);
-
- if(c->hostname)
- free(c->hostname);
-
+void free_connection_partially(connection_t *c) {
cipher_close(&c->incipher);
+ digest_close(&c->indigest);
cipher_close(&c->outcipher);
+ digest_close(&c->outdigest);
- if(c->hischallenge)
- free(c->hischallenge);
+ sptps_stop(&c->sptps);
+ ecdsa_free(&c->ecdsa);
+ rsa_free(&c->rsa);
- if(c->config_tree)
- exit_configuration(&c->config_tree);
+ if(c->hischallenge) {
+ free(c->hischallenge);
+ c->hischallenge = NULL;
+ }
- if(c->buffer)
- bufferevent_free(c->buffer);
+ buffer_clear(&c->inbuf);
+ buffer_clear(&c->outbuf);
if(event_initialized(&c->inevent))
event_del(&c->inevent);
+ if(event_initialized(&c->outevent))
+ event_del(&c->outevent);
+
+ if(c->socket > 0)
+ closesocket(c->socket);
+
+ c->socket = -1;
+
+ c->protocol_major = 0;
+ c->protocol_minor = 0;
+ c->allow_request = 0;
+}
+
+void free_connection(connection_t *c) {
+ if(!c)
+ return;
+
+ free_connection_partially(c);
+
+ free(c->name);
+ free(c->hostname);
+
+ if(c->config_tree)
+ exit_configuration(&c->config_tree);
+
free(c);
}
void connection_add(connection_t *c) {
- cp();
-
splay_insert(connection_tree, c);
}
void connection_del(connection_t *c) {
- cp();
-
splay_delete(connection_tree, c);
}
-int dump_connections(struct evbuffer *out) {
+bool dump_connections(connection_t *cdump) {
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;
+ send_request(cdump, "%d %d %s at %s options %x socket %d status %04x",
+ CONTROL, REQ_DUMP_CONNECTIONS,
+ c->name, c->hostname, c->options, c->socket,
+ bitfield_to_int(&c->status, sizeof c->status));
}
- return 0;
-}
-
-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;
+ return send_request(cdump, "%d %d", CONTROL, REQ_DUMP_CONNECTIONS);
}