/*
node.c -- node tree management
- Copyright (C) 2001-2002 Guus Sliepen <guus@sliepen.warande.net>,
- 2001-2002 Ivo Timmermans <itimmermans@bigfoot.com>
+ Copyright (C) 2001-2009 Guus Sliepen <guus@tinc-vpn.org>,
+ 2001-2005 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
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: node.c,v 1.1.2.12 2002/04/29 20:05:07 guus Exp $
+ 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 "config.h"
-
-#include <string.h>
-#include <syslog.h>
+#include "system.h"
-#include <avl_tree.h>
-#include "node.h"
-#include "netutl.h"
+#include "avl_tree.h"
+#include "logger.h"
#include "net.h"
-#include <utils.h>
-#include <xalloc.h>
-
-#include "system.h"
+#include "netutl.h"
+#include "node.h"
+#include "utils.h"
+#include "xalloc.h"
-avl_tree_t *node_tree; /* Known nodes, sorted by name */
-avl_tree_t *node_udp_tree; /* Known nodes, sorted by address and port */
+avl_tree_t *node_tree; /* Known nodes, sorted by name */
+avl_tree_t *node_udp_tree; /* Known nodes, sorted by address and port */
node_t *myself;
-int node_compare(node_t *a, node_t *b)
-{
- return strcmp(a->name, b->name);
+static int node_compare(const node_t *a, const node_t *b) {
+ return strcmp(a->name, b->name);
}
-int node_udp_compare(node_t *a, node_t *b)
-{
- int result;
-cp
- result = sockaddrcmp(&a->address, &b->address);
+static int node_udp_compare(const node_t *a, const node_t *b) {
+ return sockaddrcmp(&a->address, &b->address);
+}
- if(result)
- return result;
+void init_nodes(void) {
+ node_tree = avl_alloc_tree((avl_compare_t) node_compare, (avl_action_t) free_node);
+ node_udp_tree = avl_alloc_tree((avl_compare_t) node_udp_compare, NULL);
+}
- return (a->name && b->name)?strcmp(a->name, b->name):0;
+void exit_nodes(void) {
+ avl_delete_tree(node_udp_tree);
+ avl_delete_tree(node_tree);
}
-void init_nodes(void)
-{
-cp
- node_tree = avl_alloc_tree((avl_compare_t)node_compare, NULL);
- node_udp_tree = avl_alloc_tree((avl_compare_t)node_udp_compare, NULL);
-cp
+node_t *new_node(void) {
+ node_t *n = xmalloc_and_zero(sizeof(*n));
+
+ if(replaywin) n->late = xmalloc_and_zero(replaywin);
+ n->subnet_tree = new_subnet_tree();
+ n->edge_tree = new_edge_tree();
+ EVP_CIPHER_CTX_init(&n->inctx);
+ EVP_CIPHER_CTX_init(&n->outctx);
+ n->mtu = MTU;
+ n->maxmtu = MTU;
+
+ return n;
}
-void exit_nodes(void)
-{
-cp
- avl_delete_tree(node_tree);
- avl_delete_tree(node_udp_tree);
-cp
+void free_node(node_t *n) {
+ if(n->inkey)
+ free(n->inkey);
+
+ if(n->outkey)
+ free(n->outkey);
+
+ if(n->subnet_tree)
+ free_subnet_tree(n->subnet_tree);
+
+ if(n->edge_tree)
+ free_edge_tree(n->edge_tree);
+
+ sockaddrfree(&n->address);
+
+ EVP_CIPHER_CTX_cleanup(&n->inctx);
+ EVP_CIPHER_CTX_cleanup(&n->outctx);
+
+ if(n->mtuevent)
+ event_del(n->mtuevent);
+
+ if(n->hostname)
+ free(n->hostname);
+
+ if(n->name)
+ free(n->name);
+
+ if(n->late)
+ free(n->late);
+
+ free(n);
}
-node_t *new_node(void)
-{
- node_t *n = (node_t *)xmalloc_and_zero(sizeof(*n));
-cp
- n->subnet_tree = new_subnet_tree();
- n->edge_tree = new_edge_tree();
- n->queue = list_alloc((list_action_t)free);
-cp
- return n;
+void node_add(node_t *n) {
+ avl_insert(node_tree, n);
}
-void free_node(node_t *n)
-{
-cp
- if(n->queue)
- list_delete_list(n->queue);
- if(n->name)
- free(n->name);
- if(n->hostname)
- free(n->hostname);
- if(n->key)
- free(n->key);
- if(n->subnet_tree)
- free_subnet_tree(n->subnet_tree);
- if(n->edge_tree)
- free_edge_tree(n->edge_tree);
- free(n);
-cp
+void node_del(node_t *n) {
+ avl_node_t *node, *next;
+ edge_t *e;
+ subnet_t *s;
+
+ for(node = n->subnet_tree->head; node; node = next) {
+ next = node->next;
+ s = node->data;
+ subnet_del(n, s);
+ }
+
+ for(node = n->edge_tree->head; node; node = next) {
+ next = node->next;
+ e = node->data;
+ edge_del(e);
+ }
+
+ avl_delete(node_udp_tree, n);
+ avl_delete(node_tree, n);
}
-void node_add(node_t *n)
-{
-cp
- avl_insert(node_tree, n);
- avl_insert(node_udp_tree, n);
-cp
+node_t *lookup_node(char *name) {
+ node_t n = {0};
+
+ n.name = name;
+
+ return avl_search(node_tree, &n);
}
-void node_del(node_t *n)
-{
- avl_node_t *node, *next;
- edge_t *e;
- subnet_t *s;
-cp
- for(node = n->subnet_tree->head; node; node = next)
- {
- next = node->next;
- s = (subnet_t *)node->data;
- subnet_del(n, s);
- }
-
- for(node = n->edge_tree->head; node; node = next)
- {
- next = node->next;
- e = (edge_t *)node->data;
- edge_del(e);
- }
-cp
- avl_delete(node_tree, n);
- avl_delete(node_udp_tree, n);
-cp
+node_t *lookup_node_udp(const sockaddr_t *sa) {
+ node_t n = {0};
+
+ n.address = *sa;
+ n.name = NULL;
+
+ return avl_search(node_udp_tree, &n);
}
-node_t *lookup_node(char *name)
-{
- node_t n;
-cp
- n.name = name;
- return avl_search(node_tree, &n);
+void update_node_udp(node_t *n, const sockaddr_t *sa) {
+ avl_delete(node_udp_tree, n);
+
+ if(n->hostname)
+ free(n->hostname);
+
+ if(sa) {
+ n->address = *sa;
+ n->hostname = sockaddr2hostname(&n->address);
+ avl_insert(node_udp_tree, n);
+ ifdebug(PROTOCOL) logger(LOG_DEBUG, "UDP address of %s set to %s", n->name, n->hostname);
+ } else {
+ memset(&n->address, 0, sizeof n->address);
+ n->hostname = 0;
+ ifdebug(PROTOCOL) logger(LOG_DEBUG, "UDP address of %s cleared", n->name);
+ }
}
-node_t *lookup_node_udp(sockaddr_t *sa)
-{
- node_t n;
-cp
- n.address = *sa;
- n.name = NULL;
+void dump_nodes(void) {
+ avl_node_t *node;
+ node_t *n;
- return avl_search(node_udp_tree, &n);
-}
+ logger(LOG_DEBUG, "Nodes:");
+
+ for(node = node_tree->head; node; node = node->next) {
+ n = node->data;
+ logger(LOG_DEBUG, " %s at %s cipher %d digest %d maclength %d compression %d options %x status %04x nexthop %s via %s pmtu %d (min %d max %d)",
+ n->name, n->hostname, n->outcipher ? n->outcipher->nid : 0,
+ n->outdigest ? n->outdigest->type : 0, n->outmaclength, n->outcompression,
+ n->options, bitfield_to_int(&n->status, sizeof n->status), n->nexthop ? n->nexthop->name : "-",
+ n->via ? n->via->name : "-", n->mtu, n->minmtu, n->maxmtu);
+ }
-void dump_nodes(void)
-{
- avl_node_t *node;
- node_t *n;
-cp
- syslog(LOG_DEBUG, _("Nodes:"));
-
- for(node = node_tree->head; node; node = node->next)
- {
- n = (node_t *)node->data;
- syslog(LOG_DEBUG, _(" %s at %s cipher %d digest %d maclength %d compression %d options %lx status %04x nexthop %s via %s"),
- n->name, n->hostname, n->cipher?n->cipher->nid:0, n->digest?n->digest->type:0, n->maclength, n->compression, n->options,
- n->status, n->nexthop?n->nexthop->name:"-", n->via?n->via->name:"-");
- }
-
- syslog(LOG_DEBUG, _("End of nodes."));
-cp
+ logger(LOG_DEBUG, "End of nodes.");
}
projects / tinc / blobdiff