+ subnet_t *p, *r = NULL, subnet = {0};
+ avl_node_t *n;
+ int i;
+
+ cp();
+
+ // Check if this address is cached
+
+ for(i = 0; i < 2; i++) {
+ if(!cache_ipv6_valid[i])
+ continue;
+ if(!memcmp(address, &cache_ipv6_address[i], sizeof *address))
+ return cache_ipv6_subnet[i];
+ }
+
+ // Search all subnets for a matching one
+
+ subnet.type = SUBNET_IPV6;
+ subnet.net.ipv6.address = *address;
+ subnet.net.ipv6.prefixlength = 128;
+ subnet.owner = NULL;
+
+ for(n = subnet_tree->head; n; n = n->next) {
+ p = n->data;
+
+ if(!p || p->type != subnet.type)
+ continue;
+
+ if(!maskcmp(address, &p->net.ipv6.address, p->net.ipv6.prefixlength)) {
+ r = p;
+ if(p->owner->status.reachable)
+ break;
+ }
+ }
+
+ // Cache the result
+
+ cache_ipv6_slot = !cache_ipv6_slot;
+ memcpy(&cache_ipv6_address[cache_ipv6_slot], address, sizeof *address);
+ cache_ipv6_subnet[cache_ipv6_slot] = r;
+ cache_ipv6_valid[cache_ipv6_slot] = true;
+
+ return r;
+}
+
+void subnet_update(node_t *owner, subnet_t *subnet, bool up) {
+ avl_node_t *node;
+ int i;
+ char *envp[8];
+ char netstr[MAXNETSTR + 7] = "SUBNET=";
+ char *name, *address, *port;
+
+ asprintf(&envp[0], "NETNAME=%s", netname ? : "");
+ asprintf(&envp[1], "DEVICE=%s", device ? : "");
+ asprintf(&envp[2], "INTERFACE=%s", iface ? : "");
+ asprintf(&envp[3], "NODE=%s", owner->name);
+
+ if(owner != myself) {
+ sockaddr2str(&owner->address, &address, &port);
+ asprintf(&envp[4], "REMOTEADDRESS=%s", address);
+ asprintf(&envp[5], "REMOTEPORT=%s", port);
+ envp[6] = netstr;
+ envp[7] = NULL;
+ } else {
+ envp[4] = netstr;
+ envp[5] = NULL;
+ }
+
+ name = up ? "subnet-up" : "subnet-down";
+
+ if(!subnet) {
+ for(node = owner->subnet_tree->head; node; node = node->next) {
+ subnet = node->data;
+ if(!net2str(netstr + 7, sizeof netstr - 7, subnet))
+ continue;
+ execute_script(name, envp);
+ }
+ } else {
+ if(net2str(netstr + 7, sizeof netstr - 7, subnet))
+ execute_script(name, envp);
+ }
+
+ for(i = 0; i < (owner != myself ? 6 : 4); i++)
+ free(envp[i]);
+
+ if(owner != myself) {
+ free(address);
+ free(port);
+ }
+}
+
+void dump_subnets(void)
+{
+ char netstr[MAXNETSTR];
+ subnet_t *subnet;
+ avl_node_t *node;
+
+ cp();
+
+ logger(LOG_DEBUG, _("Subnet list:"));
+
+ for(node = subnet_tree->head; node; node = node->next) {
+ subnet = node->data;
+ if(!net2str(netstr, sizeof netstr, subnet))
+ continue;
+ logger(LOG_DEBUG, _(" %s owner %s"), netstr, subnet->owner->name);
+ }
+
+ logger(LOG_DEBUG, _("End of subnet list."));