along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: connection.c,v 1.1.2.17 2001/10/08 11:47:55 guus Exp $
+ $Id: connection.c,v 1.1.2.18 2001/10/10 09:42:29 guus Exp $
*/
#include "config.h"
#include "xalloc.h"
#include "system.h"
-/* Root of the connection list */
-
avl_tree_t *connection_tree; /* Meta connections */
-avl_tree_t *active_tree; /* Activated hosts, sorted by address and port */
-avl_tree_t *id_tree; /* Activated hosts, sorted by name */
-avl_tree_t *prune_tree; /* connection_t structures which have to be freed */
-
-/* Pointer to connection describing myself */
-
-connection_t *myself = NULL;
-
-/* Initialization and callbacks */
int connection_compare(connection_t *a, connection_t *b)
{
- return a->meta_socket - b->meta_socket;
-}
-
-int active_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);
-}
-
-int prune_compare(connection_t *a, connection_t *b)
-{
- if(a < b)
- return -1;
- else if(a > b)
- return 1;
- else
- return 0;
+ return a->socket - b->socket;
}
void init_connections(void)
-{
- connection_tree = avl_alloc_tree((avl_compare_t)connection_compare, NULL);
- active_tree = avl_alloc_tree((avl_compare_t)active_compare, NULL);
- id_tree = avl_alloc_tree((avl_compare_t)id_compare, NULL);
- prune_tree = avl_alloc_tree((avl_compare_t)prune_compare, (avl_action_t)free_connection);
-}
-
-/* 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)
{
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);
+ connection_tree = avl_alloc_tree((avl_compare_t)connection_compare, NULL);
cp
}
-/*
- Free all trees.
-*/
-void destroy_trees(void)
+void exit_connection(void)
{
cp
- avl_delete_tree(id_tree);
- avl_delete_tree(active_tree);
avl_delete_tree(connection_tree);
- avl_delete_tree(prune_tree);
-cp
-}
-
-/* Connection management */
-
-void connection_add(connection_t *cl)
-{
-cp
- avl_insert(connection_tree, cl);
-cp
-}
-
-void connection_del(connection_t *cl)
-{
-cp
- active_del(cl);
-
- if(cl->status.meta)
- avl_delete(connection_tree, cl);
cp
}
-void active_add(connection_t *cl)
-{
-cp
- avl_insert(active_tree, cl);
- avl_insert(id_tree, cl);
- cl->status.active = 1;
-cp
-}
-
-void active_del(connection_t *cl)
+connection_t *new_connection(void)
{
cp
- if(cl->status.active)
- {
- avl_delete(id_tree, cl);
- avl_delete(active_tree, cl);
- }
-cp
+ return (connection_t *)xmalloc_and_zero(sizeof(*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->rsa_key)
+ RSA_free(c->rsa_key);
+ if(c->inpktkey)
+ free(c->inpktkey);
+ if(c->outpktkey)
+ free(c->outpktkey);
+ if(c->mychallenge)
+ free(c->mychallenge);
+ if(c->hischallenge)
+ free(c->hischallenge);
+ free(c);
cp
}
-void prune_add(connection_t *cl)
+void connection_add(connection_t *c)
{
cp
- avl_insert(prune_tree, cl);
+ avl_insert(connection_tree, c);
cp
}
-void prune_flush(void)
+void connection_del(connection_t *c)
{
- avl_node_t *node, *next;
cp
- for(node = prune_tree->head; node; node = next)
- {
- next = node->next;
- avl_delete_node(prune_tree, node);
- }
+ avl_delete(connection_tree, c);
cp
}
-/* Lookup functions */
-
-connection_t *lookup_active(ipv4_t address, short unsigned int port)
+connection_t *lookup_connection(ipv4_t address, short unsigned int port)
{
- connection_t cl;
+ connection_t c;
cp
- cl.address = address;
- cl.port = port;
-
- return avl_search(active_tree, &cl);
-}
+ c.address = address;
+ c.port = port;
-connection_t *lookup_id(char *name)
-{
- connection_t cl, *p;
-cp
- cl.name = name;
- p = avl_search(id_tree, &cl);
- if(p)
- return p;
- else
- return NULL;
+ return avl_search(connection_tree, &c);
}
-/* 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, _("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);
- }
-
- syslog(LOG_DEBUG, _("Known hosts:"));
-
- for(node = id_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 nexthop %s prevhop %s via %s"),
- cl->name, cl->hostname, cl->port, cl->options,
- cl->socket, cl->meta_socket, cl->status, cl->nexthop->name, cl->prevhop->name, cl->via->name);
+ c = (connection_t *)node->data;
+ syslog(LOG_DEBUG, _(" %s at %s port %hd options %ld socket %d status %04x"),
+ c->node->name, c->hostname, c->port, c->options,
+ cl->socket, c->status);
}
- syslog(LOG_DEBUG, _("End of connection list."));
-cp
-}
-
-int read_host_config(connection_t *cl)
-{
- char *fname;
- int x;
-cp
- asprintf(&fname, "%s/hosts/%s", confbase, cl->name);
- x = read_config_file(&cl->config, fname);
- free(fname);
+ syslog(LOG_DEBUG, _("End of connections."));
cp
- return x;
}
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