along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id: subnet.c,v 1.1.2.22 2001/06/06 19:11:16 guus Exp $
+ $Id: subnet.c,v 1.1.2.28 2001/10/30 12:59:12 guus Exp $
*/
#include "config.h"
#include <stdio.h>
#include <syslog.h>
+#include <string.h>
#include "conf.h"
#include "net.h"
-#include "connection.h"
+#include "node.h"
#include "subnet.h"
#include "system.h"
avl_tree_t *subnet_tree;
-void init_subnets(void)
-{
-cp
- subnet_tree = avl_alloc_tree((avl_compare_t)subnet_compare, (avl_action_t)free_subnet);
-cp
-}
-
/* Subnet comparison */
int subnet_compare_mac(subnet_t *a, subnet_t *b)
cp
/* We compare as if a subnet is a number that equals (address << 32 + netmask). */
- if(a->net.ipv4.address == b->net.ipv4.address)
- return a->net.ipv4.mask - b->net.ipv4.mask;
- else
- return a->net.ipv4.address - b->net.ipv4.address;
+ if(a->net.ipv4.address < b->net.ipv4.address)
+ return -1;
+ else if(a->net.ipv4.address > b->net.ipv4.address)
+ return 1;
+
+ if(a->net.ipv4.mask < b->net.ipv4.mask)
+ return -1;
+ else if(a->net.ipv4.mask > b->net.ipv4.mask)
+ return 1;
+
+ return 0;
}
int subnet_compare_ipv6(subnet_t *a, subnet_t *b)
{
+ int result;
cp
/* Same as ipv4 case, but with nasty 128 bit addresses */
- if(memcmp(&a->net.ipv6.mask, &b->net.ipv6.mask, sizeof(ipv6_t)) > 0)
- if((a->net.ipv6.address.x[0] & b->net.ipv6.mask.x[0]) == b->net.ipv6.address.x[0] &&
- (a->net.ipv6.address.x[1] & b->net.ipv6.mask.x[1]) == b->net.ipv6.address.x[1] &&
- (a->net.ipv6.address.x[2] & b->net.ipv6.mask.x[2]) == b->net.ipv6.address.x[2] &&
- (a->net.ipv6.address.x[3] & b->net.ipv6.mask.x[3]) == b->net.ipv6.address.x[3] &&
- (a->net.ipv6.address.x[4] & b->net.ipv6.mask.x[4]) == b->net.ipv6.address.x[4] &&
- (a->net.ipv6.address.x[5] & b->net.ipv6.mask.x[5]) == b->net.ipv6.address.x[5] &&
- (a->net.ipv6.address.x[6] & b->net.ipv6.mask.x[6]) == b->net.ipv6.address.x[6] &&
- (a->net.ipv6.address.x[7] & b->net.ipv6.mask.x[7]) == b->net.ipv6.address.x[7])
- return -1;
+ result = memcmp(a->net.ipv6.address.x, b->net.ipv6.address.x, sizeof(ipv6_t));
+
+ if(result)
+ return result;
+
+ result = memcmp(a->net.ipv6.mask.x, b->net.ipv6.mask.x, sizeof(ipv6_t));
- return memcmp(&a->net.ipv6.address, &b->net.ipv6.address, sizeof(ipv6_t));
+ if(result)
+ return result;
+
+ return 0;
}
int subnet_compare(subnet_t *a, subnet_t *b)
}
}
+/* Initialising trees */
+
+void init_subnets(void)
+{
+cp
+ subnet_tree = avl_alloc_tree((avl_compare_t)subnet_compare, (avl_action_t)free_subnet);
+cp
+}
+
+void exit_subnets(void)
+{
+cp
+ avl_delete_tree(subnet_tree);
+cp
+}
+
+avl_tree_t *new_subnet_tree(void)
+{
+cp
+ return avl_alloc_tree((avl_compare_t)subnet_compare, NULL);
+cp
+}
+
+void free_subnet_tree(avl_tree_t *subnet_tree)
+{
+cp
+ avl_delete_tree(subnet_tree);
+cp
+}
+
/* Allocating and freeing space for subnets */
subnet_t *new_subnet(void)
free(subnet);
}
-/* Linked list management */
+/* Adding and removing subnets */
-void subnet_add(connection_t *cl, subnet_t *subnet)
+void subnet_add(node_t *n, subnet_t *subnet)
{
cp
- subnet->owner = cl;
-
- while(!avl_insert(subnet_tree, subnet))
- {
- subnet_t *old;
-
- old = (subnet_t *)avl_search(subnet_tree, subnet);
-
- if(debug_lvl >= DEBUG_PROTOCOL)
- {
- char *subnetstr;
- subnetstr = net2str(subnet);
- syslog(LOG_WARNING, _("Duplicate subnet %s for %s (%s), previous owner %s (%s)!"),
- subnetstr, cl->name, cl->hostname, old->owner->name, old->owner->hostname);
- free(subnetstr);
- }
-
- subnet_del(old);
- }
+ subnet->owner = n;
- avl_insert(cl->subnet_tree, subnet);
+ avl_insert(subnet_tree, subnet);
+cp
+ avl_insert(n->subnet_tree, subnet);
cp
}
-void subnet_del(subnet_t *subnet)
+void subnet_del(node_t *n, subnet_t *subnet)
{
cp
- avl_delete(subnet->owner->subnet_tree, subnet);
+ avl_delete(n->subnet_tree, subnet);
cp
avl_delete(subnet_tree, subnet);
cp
/* Subnet lookup routines */
+subnet_t *lookup_subnet(node_t *owner, subnet_t *subnet)
+{
+cp
+ return avl_search(owner->subnet_tree, subnet);
+}
+
subnet_t *lookup_subnet_mac(mac_t *address)
{
subnet_t subnet, *p;
return p;
}
-void dump_subnet_list(void)
+void dump_subnets(void)
{
char *netstr;
subnet_t *subnet;