/*
connection.c -- connection list management
- Copyright (C) 2000,2001 Guus Sliepen <guus@sliepen.warande.net>,
- 2000,2001 Ivo Timmermans <itimmermans@bigfoot.com>
+ Copyright (C) 2000-2002 Guus Sliepen <guus@sliepen.eu.org>,
+ 2000-2002 Ivo Timmermans <ivo@o2w.nl>
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 1.1.2.11 2001/06/05 16:09:55 guus Exp $
+ $Id: connection.c,v 1.1.2.31 2002/09/04 16:26:44 guus Exp $
*/
#include "config.h"
#include <stdio.h>
#include <syslog.h>
+#include <string.h>
+#include <sys/time.h>
#include <avl_tree.h>
#include <list.h>
#include "xalloc.h"
#include "system.h"
-/* Root of the connection list */
-
-avl_tree_t *connection_tree;
-avl_tree_t *id_tree;
-
-/* Pointer to connection describing myself */
-
-connection_t *myself = NULL;
-
-/* Initialization and callbacks */
+avl_tree_t *connection_tree; /* Meta connections */
+connection_t *broadcast;
int connection_compare(connection_t *a, connection_t *b)
{
- ipv4_t result;
-
- result = a->address - b->address;
- if(result)
- return result;
- else
- return a->port - b->port;
-}
-
-int id_compare(connection_t *a, connection_t *b)
-{
- return strcmp(a->name, b->name);
+ return a - b;
}
void init_connections(void)
{
- connection_tree = avl_alloc_tree((avl_compare_t)connection_compare, (avl_action_t)free_connection);
- id_tree = avl_alloc_tree((avl_compare_t)id_compare, NULL);
-}
-
-/* Creation and deletion of connection elements */
-
-connection_t *new_connection(void)
-{
- connection_t *p = (connection_t *)xmalloc_and_zero(sizeof(*p));
cp
- p->subnet_tree = avl_alloc_tree((avl_compare_t)subnet_compare, NULL);
- p->queue = list_alloc((list_action_t)free);
-cp
- return p;
-}
-
-void free_connection(connection_t *p)
-{
+ connection_tree = avl_alloc_tree((avl_compare_t)connection_compare, NULL);
cp
- if(p->queue)
- list_delete_list(p->queue);
- if(p->name)
- free(p->name);
- if(p->hostname)
- free(p->hostname);
- if(p->rsa_key)
- RSA_free(p->rsa_key);
- if(p->cipher_pktkey)
- free(p->cipher_pktkey);
- if(p->buffer)
- free(p->buffer);
- if(p->config)
- clear_config(&p->config);
- free(p);
+ broadcast = new_connection();
+ broadcast->name = xstrdup(_("everyone"));
+ broadcast->hostname = xstrdup(_("BROADCAST"));
cp
}
-/*
- remove all marked connections
-*/
-void prune_connection_tree(void)
+void exit_connections(void)
{
- avl_node_t *node, *next;
- connection_t *cl;
cp
- for(node = connection_tree->head; node; node = next)
- {
- next = node->next;
- cl = (connection_t *)node->data;
- if(cl->status.remove)
- connection_del(cl);
- }
+ avl_delete_tree(connection_tree);
+cp
+ free_connection(broadcast);
cp
}
-/*
- free all elements of connection
-*/
-void destroy_connection_tree(void)
+connection_t *new_connection(void)
{
+ connection_t *c;
cp
- avl_delete_tree(id_tree);
- avl_delete_tree(connection_tree);
-cp
-}
+ c = (connection_t *)xmalloc_and_zero(sizeof(connection_t));
-/* Linked list management */
+ if(!c)
+ return NULL;
-void connection_add(connection_t *cl)
-{
-cp
- avl_insert(connection_tree, cl);
+ gettimeofday(&c->start, NULL);
cp
+ return c;
}
-void id_add(connection_t *cl)
+void free_connection(connection_t *c)
{
cp
- avl_insert(id_tree, cl);
+ 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 connection_del(connection_t *cl)
+void connection_add(connection_t *c)
{
cp
- avl_delete(id_tree, cl);
- avl_delete(connection_tree, cl);
+ avl_insert(connection_tree, c);
cp
}
-/* Lookup functions */
-
-connection_t *lookup_connection(ipv4_t address, short unsigned int port)
+void connection_del(connection_t *c)
{
- connection_t cl;
cp
- cl.address = address;
- cl.port = port;
-
- return avl_search(connection_tree, &cl);
-}
-
-connection_t *lookup_id(char *name)
-{
- connection_t cl, *p;
+ avl_delete(connection_tree, c);
cp
- cl.name = name;
- p = avl_search(id_tree, &cl);
- if(p && p->status.active)
- return p;
- else
- return NULL;
}
-/* Debugging */
-
-void dump_connection_list(void)
+void dump_connections(void)
{
avl_node_t *node;
- connection_t *cl;
+ connection_t *c;
cp
- syslog(LOG_DEBUG, _("Connection list:"));
-
- syslog(LOG_DEBUG, _(" %s at %s port %hd options %ld sockets %d, %d status %04x"),
- myself->name, myself->hostname, myself->port, myself->options,
- myself->socket, myself->meta_socket, myself->status);
+ syslog(LOG_DEBUG, _("Connections:"));
for(node = connection_tree->head; node; node = node->next)
{
- cl = (connection_t *)node->data;
- syslog(LOG_DEBUG, _(" %s at %s port %hd options %ld sockets %d, %d status %04x"),
- cl->name, cl->hostname, cl->port, cl->options,
- cl->socket, cl->meta_socket, cl->status);
+ c = (connection_t *)node->data;
+ syslog(LOG_DEBUG, _(" %s at %s options %lx socket %d status %04x"),
+ c->name, c->hostname, c->options, c->socket, c->status);
}
- syslog(LOG_DEBUG, _("End of connection list."));
+ syslog(LOG_DEBUG, _("End of connections."));
cp
}
-int read_host_config(connection_t *cl)
+int read_connection_config(connection_t *c)
{
char *fname;
int x;
cp
- asprintf(&fname, "%s/hosts/%s", confbase, cl->name);
- x = read_config_file(&cl->config, fname);
+ asprintf(&fname, "%s/hosts/%s", confbase, c->name);
+ x = read_config_file(c->config_tree, fname);
free(fname);
cp
return x;
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