X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fsubnet.c;h=3d1168dee2600c69416bf91c7ad4ca623195a3ce;hp=ada811200eefdb838493a1856ac2b0d05ccf6213;hb=43a6e786648fb666a9b7be8f05c8a173031c9110;hpb=c98db1b861d62430e23f26b0da18e7b3ec875767 diff --git a/src/subnet.c b/src/subnet.c index ada81120..3d1168de 100644 --- a/src/subnet.c +++ b/src/subnet.c @@ -1,7 +1,7 @@ /* subnet.c -- handle subnet lookups and lists - Copyright (C) 2000-2002 Guus Sliepen , - 2000-2002 Ivo Timmermans + Copyright (C) 2000-2009 Guus Sliepen , + 2000-2005 Ivo Timmermans 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 @@ -13,401 +13,533 @@ 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: subnet.c,v 1.1.2.39 2002/07/11 12:42:43 guus Exp $ + 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., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#include "config.h" - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include +#include "system.h" -#include "conf.h" +#include "avl_tree.h" +#include "device.h" +#include "logger.h" #include "net.h" +#include "netutl.h" #include "node.h" +#include "process.h" #include "subnet.h" -#include "netutl.h" - -#include "system.h" +#include "utils.h" +#include "xalloc.h" /* lists type of subnet */ avl_tree_t *subnet_tree; +/* Subnet lookup cache */ + +static ipv4_t cache_ipv4_address[2]; +static subnet_t *cache_ipv4_subnet[2]; +static bool cache_ipv4_valid[2]; +static int cache_ipv4_slot; + +static ipv6_t cache_ipv6_address[2]; +static subnet_t *cache_ipv6_subnet[2]; +static bool cache_ipv6_valid[2]; +static int cache_ipv6_slot; + +static mac_t cache_mac_address[2]; +static subnet_t *cache_mac_subnet[2]; +static bool cache_mac_valid[2]; +static int cache_mac_slot; + +void subnet_cache_flush() { + cache_ipv4_valid[0] = cache_ipv4_valid[1] = false; + cache_ipv6_valid[0] = cache_ipv6_valid[1] = false; + cache_mac_valid[0] = cache_mac_valid[1] = false; +} + /* Subnet comparison */ -int subnet_compare_mac(subnet_t *a, subnet_t *b) -{ - int result; -cp - result = memcmp(&a->net.mac.address, &b->net.mac.address, sizeof(mac_t)); - - if(result || !a->owner || !b->owner) - return result; +static int subnet_compare_mac(const subnet_t *a, const subnet_t *b) { + int result; + + result = memcmp(&a->net.mac.address, &b->net.mac.address, sizeof(mac_t)); + + if(result) + return result; + + result = a->weight - b->weight; + + if(result || !a->owner || !b->owner) + return result; - return strcmp(a->owner->name, b->owner->name); + return strcmp(a->owner->name, b->owner->name); } -int subnet_compare_ipv4(subnet_t *a, subnet_t *b) -{ - int result; -cp - result = memcmp(&a->net.ipv4.address, &b->net.ipv4.address, sizeof(ipv4_t)); - - if(result) - return result; - - result = a->net.ipv4.prefixlength - b->net.ipv4.prefixlength; - - if(result || !a->owner || !b->owner) - return result; - - return strcmp(a->owner->name, b->owner->name); +static int subnet_compare_ipv4(const subnet_t *a, const subnet_t *b) { + int result; + + result = b->net.ipv4.prefixlength - a->net.ipv4.prefixlength; + + if(result) + return result; + + result = memcmp(&a->net.ipv4.address, &b->net.ipv4.address, sizeof(ipv4_t)); + + if(result) + return result; + + result = a->weight - b->weight; + + if(result || !a->owner || !b->owner) + return result; + + return strcmp(a->owner->name, b->owner->name); } -int subnet_compare_ipv6(subnet_t *a, subnet_t *b) -{ - int result; -cp - result = memcmp(&a->net.ipv6.address, &b->net.ipv6.address, sizeof(ipv6_t)); - - if(result) - return result; - - result = a->net.ipv6.prefixlength - b->net.ipv6.prefixlength; - - if(result || !a->owner || !b->owner) - return result; - - return strcmp(a->owner->name, b->owner->name); +static int subnet_compare_ipv6(const subnet_t *a, const subnet_t *b) { + int result; + + result = b->net.ipv6.prefixlength - a->net.ipv6.prefixlength; + + if(result) + return result; + + result = memcmp(&a->net.ipv6.address, &b->net.ipv6.address, sizeof(ipv6_t)); + + if(result) + return result; + + result = a->weight - b->weight; + + if(result || !a->owner || !b->owner) + return result; + + return strcmp(a->owner->name, b->owner->name); } -int subnet_compare(subnet_t *a, subnet_t *b) -{ - int result; -cp - result = a->type - b->type; - - if(result) - return result; - - switch(a->type) - { - case SUBNET_MAC: - return subnet_compare_mac(a, b); - case SUBNET_IPV4: - return subnet_compare_ipv4(a, b); - case SUBNET_IPV6: - return subnet_compare_ipv6(a, b); - default: - syslog(LOG_ERR, _("subnet_compare() was called with unknown subnet type %d, exitting!"), a->type); - cp_trace(); - exit(0); - } - - return 0; +int subnet_compare(const subnet_t *a, const subnet_t *b) { + int result; + + result = a->type - b->type; + + if(result) + return result; + + switch (a->type) { + case SUBNET_MAC: + return subnet_compare_mac(a, b); + case SUBNET_IPV4: + return subnet_compare_ipv4(a, b); + case SUBNET_IPV6: + return subnet_compare_ipv6(a, b); + default: + logger(LOG_ERR, "subnet_compare() was called with unknown subnet type %d, exitting!", + a->type); + exit(0); + } + + return 0; } /* Initialising trees */ -void init_subnets(void) -{ -cp - subnet_tree = avl_alloc_tree((avl_compare_t)subnet_compare, (avl_action_t)free_subnet); -cp +void init_subnets(void) { + subnet_tree = avl_alloc_tree((avl_compare_t) subnet_compare, (avl_action_t) free_subnet); + + subnet_cache_flush(); } -void exit_subnets(void) -{ -cp - avl_delete_tree(subnet_tree); -cp +void exit_subnets(void) { + avl_delete_tree(subnet_tree); } -avl_tree_t *new_subnet_tree(void) -{ -cp - return avl_alloc_tree((avl_compare_t)subnet_compare, NULL); -cp +avl_tree_t *new_subnet_tree(void) { + return avl_alloc_tree((avl_compare_t) subnet_compare, NULL); } -void free_subnet_tree(avl_tree_t *subnet_tree) -{ -cp - avl_delete_tree(subnet_tree); -cp +void free_subnet_tree(avl_tree_t *subnet_tree) { + avl_delete_tree(subnet_tree); } /* Allocating and freeing space for subnets */ -subnet_t *new_subnet(void) -{ -cp - return (subnet_t *)xmalloc_and_zero(sizeof(subnet_t)); +subnet_t *new_subnet(void) { + return xmalloc_and_zero(sizeof(subnet_t)); } -void free_subnet(subnet_t *subnet) -{ -cp - free(subnet); +void free_subnet(subnet_t *subnet) { + free(subnet); } /* Adding and removing subnets */ -void subnet_add(node_t *n, subnet_t *subnet) -{ -cp - subnet->owner = n; +void subnet_add(node_t *n, subnet_t *subnet) { + subnet->owner = n; - avl_insert(subnet_tree, subnet); -cp - avl_insert(n->subnet_tree, subnet); -cp + avl_insert(subnet_tree, subnet); + avl_insert(n->subnet_tree, subnet); + + subnet_cache_flush(); } -void subnet_del(node_t *n, subnet_t *subnet) -{ -cp - avl_delete(n->subnet_tree, subnet); -cp - avl_delete(subnet_tree, subnet); -cp +void subnet_del(node_t *n, subnet_t *subnet) { + avl_delete(n->subnet_tree, subnet); + avl_delete(subnet_tree, subnet); + + subnet_cache_flush(); } /* Ascii representation of subnets */ -subnet_t *str2net(char *subnetstr) -{ - int i, l; - subnet_t *subnet; - uint16_t x[8]; -cp - subnet = new_subnet(); -cp - if(sscanf(subnetstr, "%hu.%hu.%hu.%hu/%d", - &x[0], &x[1], &x[2], &x[3], - &l) == 5) - { - subnet->type = SUBNET_IPV4; - subnet->net.ipv4.prefixlength = l; - for(i = 0; i < 4; i++) - subnet->net.ipv4.address.x[i] = x[i]; - return subnet; - } - - if(sscanf(subnetstr, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx/%d", - &x[0], &x[1], &x[2], &x[3], &x[4], &x[5], &x[6], &x[7], - &l) == 9) - { - subnet->type = SUBNET_IPV6; - subnet->net.ipv6.prefixlength = l; - for(i = 0; i < 8; i++) - subnet->net.ipv6.address.x[i] = htons(x[i]); - return subnet; - } - - if(sscanf(subnetstr, "%hu.%hu.%hu.%hu", - &x[0], &x[1], &x[2], &x[3]) == 4) - { - subnet->type = SUBNET_IPV4; - subnet->net.ipv4.prefixlength = 32; - for(i = 0; i < 4; i++) - subnet->net.ipv4.address.x[i] = x[i]; - return subnet; - } - - if(sscanf(subnetstr, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx", - &x[0], &x[1], &x[2], &x[3], &x[4], &x[5], &x[6], &x[7]) == 8) - { - subnet->type = SUBNET_IPV6; - subnet->net.ipv6.prefixlength = 128; - for(i = 0; i < 8; i++) - subnet->net.ipv6.address.x[i] = htons(x[i]); - return subnet; - } - - if(sscanf(subnetstr, "%hx:%hx:%hx:%hx:%hx:%hx", - &x[0], &x[1], &x[2], &x[3], &x[4], &x[5]) == 6) - { - subnet->type = SUBNET_MAC; - for(i = 0; i < 6; i++) - subnet->net.mac.address.x[i] = x[i]; - return subnet; - } - - free(subnet); - return NULL; +bool str2net(subnet_t *subnet, const char *subnetstr) { + int i, l; + uint16_t x[8]; + int weight = 10; + + if(sscanf(subnetstr, "%hu.%hu.%hu.%hu/%d#%d", + &x[0], &x[1], &x[2], &x[3], &l, &weight) >= 5) { + if(l < 0 || l > 32) + return false; + + subnet->type = SUBNET_IPV4; + subnet->net.ipv4.prefixlength = l; + subnet->weight = weight; + + for(i = 0; i < 4; i++) { + if(x[i] > 255) + return false; + subnet->net.ipv4.address.x[i] = x[i]; + } + + return true; + } + + if(sscanf(subnetstr, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx/%d#%d", + &x[0], &x[1], &x[2], &x[3], &x[4], &x[5], &x[6], &x[7], + &l, &weight) >= 9) { + if(l < 0 || l > 128) + return false; + + subnet->type = SUBNET_IPV6; + subnet->net.ipv6.prefixlength = l; + subnet->weight = weight; + + for(i = 0; i < 8; i++) + subnet->net.ipv6.address.x[i] = htons(x[i]); + + return true; + } + + if(sscanf(subnetstr, "%hu.%hu.%hu.%hu#%d", &x[0], &x[1], &x[2], &x[3], &weight) >= 4) { + subnet->type = SUBNET_IPV4; + subnet->net.ipv4.prefixlength = 32; + subnet->weight = weight; + + for(i = 0; i < 4; i++) { + if(x[i] > 255) + return false; + subnet->net.ipv4.address.x[i] = x[i]; + } + + return true; + } + + if(sscanf(subnetstr, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx#%d", + &x[0], &x[1], &x[2], &x[3], &x[4], &x[5], &x[6], &x[7], &weight) >= 8) { + subnet->type = SUBNET_IPV6; + subnet->net.ipv6.prefixlength = 128; + subnet->weight = weight; + + for(i = 0; i < 8; i++) + subnet->net.ipv6.address.x[i] = htons(x[i]); + + return true; + } + + if(sscanf(subnetstr, "%hx:%hx:%hx:%hx:%hx:%hx#%d", + &x[0], &x[1], &x[2], &x[3], &x[4], &x[5], &weight) >= 6) { + subnet->type = SUBNET_MAC; + subnet->weight = weight; + + for(i = 0; i < 6; i++) + subnet->net.mac.address.x[i] = x[i]; + + return true; + } + + return false; } -char *net2str(subnet_t *subnet) -{ - char *netstr; -cp - switch(subnet->type) - { - case SUBNET_MAC: - asprintf(&netstr, "%hx:%hx:%hx:%hx:%hx:%hx", - subnet->net.mac.address.x[0], - subnet->net.mac.address.x[1], - subnet->net.mac.address.x[2], - subnet->net.mac.address.x[3], - subnet->net.mac.address.x[4], - subnet->net.mac.address.x[5]); - break; - case SUBNET_IPV4: - asprintf(&netstr, "%hu.%hu.%hu.%hu/%d", - subnet->net.ipv4.address.x[0], - subnet->net.ipv4.address.x[1], - subnet->net.ipv4.address.x[2], - subnet->net.ipv4.address.x[3], - subnet->net.ipv4.prefixlength); - break; - case SUBNET_IPV6: - asprintf(&netstr, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx/%d", - ntohs(subnet->net.ipv6.address.x[0]), - ntohs(subnet->net.ipv6.address.x[1]), - ntohs(subnet->net.ipv6.address.x[2]), - ntohs(subnet->net.ipv6.address.x[3]), - ntohs(subnet->net.ipv6.address.x[4]), - ntohs(subnet->net.ipv6.address.x[5]), - ntohs(subnet->net.ipv6.address.x[6]), - ntohs(subnet->net.ipv6.address.x[7]), - subnet->net.ipv6.prefixlength); - break; - default: - syslog(LOG_ERR, _("net2str() was called with unknown subnet type %d, exiting!"), subnet->type); - cp_trace(); - exit(0); - } -cp - return netstr; +bool net2str(char *netstr, int len, const subnet_t *subnet) { + if(!netstr || !subnet) { + logger(LOG_ERR, "net2str() was called with netstr=%p, subnet=%p!\n", netstr, subnet); + return false; + } + + switch (subnet->type) { + case SUBNET_MAC: + snprintf(netstr, len, "%hx:%hx:%hx:%hx:%hx:%hx#%d", + subnet->net.mac.address.x[0], + subnet->net.mac.address.x[1], + subnet->net.mac.address.x[2], + subnet->net.mac.address.x[3], + subnet->net.mac.address.x[4], + subnet->net.mac.address.x[5], + subnet->weight); + break; + + case SUBNET_IPV4: + snprintf(netstr, len, "%hu.%hu.%hu.%hu/%d#%d", + subnet->net.ipv4.address.x[0], + subnet->net.ipv4.address.x[1], + subnet->net.ipv4.address.x[2], + subnet->net.ipv4.address.x[3], + subnet->net.ipv4.prefixlength, + subnet->weight); + break; + + case SUBNET_IPV6: + snprintf(netstr, len, "%hx:%hx:%hx:%hx:%hx:%hx:%hx:%hx/%d#%d", + ntohs(subnet->net.ipv6.address.x[0]), + ntohs(subnet->net.ipv6.address.x[1]), + ntohs(subnet->net.ipv6.address.x[2]), + ntohs(subnet->net.ipv6.address.x[3]), + ntohs(subnet->net.ipv6.address.x[4]), + ntohs(subnet->net.ipv6.address.x[5]), + ntohs(subnet->net.ipv6.address.x[6]), + ntohs(subnet->net.ipv6.address.x[7]), + subnet->net.ipv6.prefixlength, + subnet->weight); + break; + + default: + logger(LOG_ERR, + "net2str() was called with unknown subnet type %d, exiting!", + subnet->type); + exit(0); + } + + return true; } /* 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(const node_t *owner, const subnet_t *subnet) { + return avl_search(owner->subnet_tree, subnet); +} + +subnet_t *lookup_subnet_mac(const mac_t *address) { + subnet_t *p, *r = NULL, subnet = {0}; + avl_node_t *n; + int i; + + // Check if this address is cached + + for(i = 0; i < 2; i++) { + if(!cache_mac_valid[i]) + continue; + if(!memcmp(address, &cache_mac_address[i], sizeof *address)) + return cache_mac_subnet[i]; + } + + // Search all subnets for a matching one + + subnet.type = SUBNET_MAC; + subnet.net.mac.address = *address; + subnet.owner = NULL; + + for(n = subnet_tree->head; n; n = n->next) { + p = n->data; + + if(!p || p->type != subnet.type) + continue; + + if(!memcmp(address, &p->net.mac.address, sizeof *address)) { + r = p; + if(p->owner->status.reachable) + break; + } + } + + // Cache the result + + cache_mac_slot = !cache_mac_slot; + memcpy(&cache_mac_address[cache_mac_slot], address, sizeof *address); + cache_mac_subnet[cache_mac_slot] = r; + cache_mac_valid[cache_mac_slot] = true; + + return r; } -subnet_t *lookup_subnet_mac(mac_t *address) -{ - subnet_t subnet, *p; -cp - subnet.type = SUBNET_MAC; - memcpy(&subnet.net.mac.address, address, sizeof(mac_t)); - subnet.owner = NULL; - - p = (subnet_t *)avl_search(subnet_tree, &subnet); -cp - return p; +subnet_t *lookup_subnet_ipv4(const ipv4_t *address) { + subnet_t *p, *r = NULL, subnet = {0}; + avl_node_t *n; + int i; + + // Check if this address is cached + + for(i = 0; i < 2; i++) { + if(!cache_ipv4_valid[i]) + continue; + if(!memcmp(address, &cache_ipv4_address[i], sizeof *address)) + return cache_ipv4_subnet[i]; + } + + // Search all subnets for a matching one + + subnet.type = SUBNET_IPV4; + subnet.net.ipv4.address = *address; + subnet.net.ipv4.prefixlength = 32; + 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.ipv4.address, p->net.ipv4.prefixlength)) { + r = p; + if(p->owner->status.reachable) + break; + } + } + + // Cache the result + + cache_ipv4_slot = !cache_ipv4_slot; + memcpy(&cache_ipv4_address[cache_ipv4_slot], address, sizeof *address); + cache_ipv4_subnet[cache_ipv4_slot] = r; + cache_ipv4_valid[cache_ipv4_slot] = true; + + return r; } -subnet_t *lookup_subnet_ipv4(ipv4_t *address) -{ - subnet_t subnet, *p; -cp - subnet.type = SUBNET_IPV4; - memcpy(&subnet.net.ipv4.address, address, sizeof(ipv4_t)); - subnet.net.ipv4.prefixlength = 32; - subnet.owner = NULL; - - do - { - /* Go find subnet */ - - p = (subnet_t *)avl_search_closest_smaller(subnet_tree, &subnet); - - /* Check if the found subnet REALLY matches */ -cp - if(p) - { - if(p->type != SUBNET_IPV4) - { - p = NULL; - break; - } - - if (!maskcmp(address, &p->net.ipv4.address, p->net.ipv4.prefixlength, sizeof(ipv4_t))) - break; - else - { - /* Otherwise, see if there is a bigger enclosing subnet */ - - subnet.net.ipv4.prefixlength = p->net.ipv4.prefixlength - 1; - maskcpy(&subnet.net.ipv4.address, &p->net.ipv4.address, subnet.net.ipv4.prefixlength, sizeof(ipv4_t)); - } - } - } while (p); -cp - return p; +subnet_t *lookup_subnet_ipv6(const ipv6_t *address) { + subnet_t *p, *r = NULL, subnet = {0}; + avl_node_t *n; + int i; + + // 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; } -subnet_t *lookup_subnet_ipv6(ipv6_t *address) -{ - subnet_t subnet, *p; -cp - subnet.type = SUBNET_IPV6; - memcpy(&subnet.net.ipv6.address, address, sizeof(ipv6_t)); - subnet.net.ipv6.prefixlength = 128; - subnet.owner = NULL; - - do - { - /* Go find subnet */ - - p = (subnet_t *)avl_search_closest_smaller(subnet_tree, &subnet); - - /* Check if the found subnet REALLY matches */ - -cp - if(p) - { - if(p->type != SUBNET_IPV6) - return NULL; - - if (!maskcmp(address, &p->net.ipv6.address, p->net.ipv6.prefixlength, sizeof(ipv6_t))) - break; - else - { - /* Otherwise, see if there is a bigger enclosing subnet */ - - subnet.net.ipv6.prefixlength = p->net.ipv6.prefixlength - 1; - maskcpy(&subnet.net.ipv6.address, &p->net.ipv6.address, subnet.net.ipv6.prefixlength, sizeof(ipv6_t)); - } - } - } while (p); -cp - return p; +void subnet_update(node_t *owner, subnet_t *subnet, bool up) { + avl_node_t *node; + int i; + char *envp[9] = {0}; + char netstr[MAXNETSTR]; + char *name, *address, *port; + char empty[] = ""; + + // Prepare environment variables to be passed to the script + + xasprintf(&envp[0], "NETNAME=%s", netname ? : ""); + xasprintf(&envp[1], "DEVICE=%s", device ? : ""); + xasprintf(&envp[2], "INTERFACE=%s", iface ? : ""); + xasprintf(&envp[3], "NODE=%s", owner->name); + + if(owner != myself) { + sockaddr2str(&owner->address, &address, &port); + // 4 and 5 are reserved for SUBNET and WEIGHT + xasprintf(&envp[6], "REMOTEADDRESS=%s", address); + xasprintf(&envp[7], "REMOTEPORT=%s", port); + } + + name = up ? "subnet-up" : "subnet-down"; + + if(!subnet) { + for(node = owner->subnet_tree->head; node; node = node->next) { + subnet = node->data; + if(!net2str(netstr, sizeof netstr, subnet)) + continue; + // Strip the weight from the subnet, and put it in its own environment variable + char *weight = strchr(netstr + 7, '#'); + if(weight) + *weight++ = 0; + else + weight = empty; + + // Prepare the SUBNET and WEIGHT variables + if(envp[4]) + free(envp[4]); + if(envp[5]) + free(envp[5]); + xasprintf(&envp[4], "SUBNET=%s", netstr); + xasprintf(&envp[5], "WEIGHT=%s", weight); + + execute_script(name, envp); + } + } else { + if(net2str(netstr + 7, sizeof netstr - 7, subnet)) { + // Strip the weight from the subnet, and put it in its own environment variable + char *weight = strchr(netstr + 7, '#'); + if(weight) + *weight++ = 0; + else + weight = empty; + + // Prepare the SUBNET and WEIGHT variables + xasprintf(&envp[4], "SUBNET=%s", netstr); + xasprintf(&envp[5], "WEIGHT=%s", weight); + + execute_script(name, envp); + } + } + + for(i = 0; envp[i] && i < 9; i++) + free(envp[i]); } -void dump_subnets(void) -{ - char *netstr; - subnet_t *subnet; - avl_node_t *node; -cp - syslog(LOG_DEBUG, _("Subnet list:")); - for(node = subnet_tree->head; node; node = node->next) - { - subnet = (subnet_t *)node->data; - netstr = net2str(subnet); - syslog(LOG_DEBUG, _(" %s owner %s"), netstr, subnet->owner->name); - free(netstr); - } - syslog(LOG_DEBUG, _("End of subnet list.")); -cp +void dump_subnets(void) { + char netstr[MAXNETSTR]; + subnet_t *subnet; + avl_node_t *node; + + 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."); }