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- /*
- node.c -- node tree management
- Copyright (C) 2001-2002 Guus Sliepen <guus@sliepen.warande.net>,
- 2001-2002 Ivo Timmermans <itimmermans@bigfoot.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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- 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 1.1.2.8 2002/02/10 21:57:54 guus Exp $
- */
- #include "config.h"
- #include <string.h>
- #include <syslog.h>
- #include <avl_tree.h>
- #include "node.h"
- #include "net.h"
- #include <utils.h>
- #include <xalloc.h>
- #include "system.h"
- 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);
- }
- int node_udp_compare(node_t *a, node_t *b)
- {
- if(a->address < b->address)
- return -1;
- if (a->address > b->address)
- return 1;
- if (a->port < b->port)
- return -1;
- if (a->port > b->port)
- return 1;
- return (a->name && b->name)?strcmp(a->name, b->name):0;
- }
- 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
- }
- void exit_nodes(void)
- {
- cp
- avl_delete_tree(node_tree);
- avl_delete_tree(node_udp_tree);
- cp
- }
- 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 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_add(node_t *n)
- {
- cp
- avl_insert(node_tree, n);
- avl_insert(node_udp_tree, n);
- cp
- }
- 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->subnet_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(char *name)
- {
- node_t n;
- cp
- n.name = name;
- return avl_search(node_tree, &n);
- }
- node_t *lookup_node_udp(ipv4_t address, port_t port)
- {
- node_t n;
- cp
- n.name = NULL;
- n.address = address;
- n.port = port;
- return avl_search(node_udp_tree, &n);
- }
- 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 port %hd cipher %d digest %d maclength %d options %ld status %04x nexthop %s via %s"),
- n->name, n->hostname, n->port, n->cipher?n->cipher->nid:0, n->digest?n->digest->type:0, n->maclength, n->options,
- n->status, n->nexthop?n->nexthop->name:"-", n->via?n->via->name:"-");
- }
-
- syslog(LOG_DEBUG, _("End of nodes."));
- cp
- }
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