X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fnetifd.git;a=blobdiff_plain;f=interface-ip.c;h=a945147793167e8102284e802088257dee183283;hp=b720eff5539834887bddcd3ce5cb7e72a3a56cbf;hb=f8cf10f2623cbda18e429cc122952859d3e323a5;hpb=91228b6efb36c8954e3d23c0801f54ee984d5a0a diff --git a/interface-ip.c b/interface-ip.c index b720eff..a945147 100644 --- a/interface-ip.c +++ b/interface-ip.c @@ -92,20 +92,35 @@ match_if_addr(union if_addr *a1, union if_addr *a2, int mask) } static int set_ip_source_policy(bool add, bool v6, unsigned int priority, - const union if_addr *addr, uint8_t mask, struct interface *iface) + const union if_addr *addr, uint8_t mask, struct interface *iface, + struct interface *in_iface, const char *action) { - - struct iprule rule = { - .flags = IPRULE_SRC | IPRULE_LOOKUP | IPRULE_PRIORITY, - .priority = priority, - .lookup = (v6) ? iface->ip6table : iface->ip4table, - .src_addr = *addr, - .src_mask = mask, + .flags = IPRULE_PRIORITY, + .priority = priority }; - if (!rule.lookup) - return 0; + if (addr) { + rule.flags |= IPRULE_SRC; + rule.src_addr = *addr; + rule.src_mask = mask; + } + + if (iface) { + rule.flags |= IPRULE_LOOKUP; + rule.lookup = (v6) ? iface->ip6table : iface->ip4table; + + if (!rule.lookup) + return 0; + } else if (action) { + rule.flags |= IPRULE_ACTION; + system_resolve_iprule_action(action, &rule.action); + } + + if (in_iface && in_iface->l3_dev.dev) { + rule.flags |= IPRULE_IN; + strcpy(rule.in_dev, in_iface->l3_dev.dev->ifname); + } rule.flags |= (v6) ? IPRULE_INET6 : IPRULE_INET4; @@ -370,7 +385,7 @@ route_cmp(const void *k1, const void *k2, void *ptr) static int prefix_cmp(const void *k1, const void *k2, void *ptr) { - return memcmp(k1, k2, sizeof(struct device_prefix) - + return memcmp(k1, k2, offsetof(struct device_prefix, pclass) - offsetof(struct device_prefix, addr)); } @@ -460,9 +475,9 @@ interface_update_proto_addr(struct vlist_tree *tree, //only the network-rule will cause packets to be routed through the //first matching network (source IP matches both masks). set_ip_source_policy(false, v6, IPRULE_PRIORITY_ADDR, &a_old->addr, - (v6) ? 128 : 32, iface); + (v6) ? 128 : 32, iface, NULL, NULL); set_ip_source_policy(false, v6, IPRULE_PRIORITY_NW, &a_old->addr, - a_old->mask, iface); + a_old->mask, iface, NULL, NULL); system_del_address(dev, a_old); } @@ -478,9 +493,9 @@ interface_update_proto_addr(struct vlist_tree *tree, v6 = true; set_ip_source_policy(true, v6, IPRULE_PRIORITY_ADDR, &a_new->addr, - (v6) ? 128 : 32, iface); + (v6) ? 128 : 32, iface, NULL, NULL); set_ip_source_policy(true, v6, IPRULE_PRIORITY_NW, &a_new->addr, - a_new->mask, iface); + a_new->mask, iface, NULL, NULL); if ((a_new->flags & DEVADDR_OFFLINK) || iface->metric) interface_handle_subnet_route(iface, a_new, true); @@ -589,9 +604,24 @@ interface_set_prefix_address(struct device_prefix_assignment *assignment, if (!addr.valid_until || addr.valid_until - now > 7200) addr.valid_until = now + 7200; system_add_address(l3_downlink, &addr); + if (prefix->iface) { + set_ip_source_policy(false, true, IPRULE_PRIORITY_NW, &addr.addr, + addr.mask, prefix->iface, iface, NULL); + + set_ip_source_policy(false, true, IPRULE_PRIORITY_REJECT, &addr.addr, + addr.mask, NULL, iface, "unreachable"); + } + assignment->enabled = false; } else if (add && (iface->state == IFS_UP || iface->state == IFS_SETUP)) { system_add_address(l3_downlink, &addr); + if (prefix->iface && !assignment->enabled) { + set_ip_source_policy(true, true, IPRULE_PRIORITY_REJECT, &addr.addr, + addr.mask, NULL, iface, "unreachable"); + + set_ip_source_policy(true, true, IPRULE_PRIORITY_NW, &addr.addr, + addr.mask, prefix->iface, iface, NULL); + } if (uplink && uplink->l3_dev.dev) { int mtu = system_update_ipv6_mtu( uplink->l3_dev.dev, 0); @@ -665,14 +695,30 @@ static void interface_update_prefix_assignments(struct device_prefix *prefix, bo bool assigned_any = false; struct list_head assign_later = LIST_HEAD_INIT(assign_later); vlist_for_each_element(&interfaces, iface, node) { - if (iface->config_ip.assignment_length < 48 || - iface->config_ip.assignment_length > 64) + if (iface->assignment_length < 48 || + iface->assignment_length > 64) continue; + // Test whether there is a matching class + if (!list_empty(&iface->assignment_classes)) { + bool found = false; + + struct interface_assignment_class *c; + list_for_each_entry(c, &iface->assignment_classes, head) { + if (!strcmp(c->name, prefix->pclass)) { + found = true; + break; + } + } + + if (!found) + continue; + } + size_t namelen = strlen(iface->name) + 1; c = malloc(sizeof(*c) + namelen); - c->length = iface->config_ip.assignment_length; - c->assigned = iface->config_ip.assignment_hint; + c->length = iface->assignment_length; + c->assigned = iface->assignment_hint; c->enabled = false; memcpy(c->name, iface->name, namelen); @@ -759,21 +805,12 @@ interface_update_prefix(struct vlist_tree *tree, if ((iface = vlist_find(&interfaces, c->name, iface, node))) interface_set_prefix_address(c, prefix_new, iface, true); } else if (node_new) { - // Set null-route to avoid routing loops and set routing policy + // Set null-route to avoid routing loops system_add_route(NULL, &route); - if (prefix_new->iface) - set_ip_source_policy(true, true, IPRULE_PRIORITY_NW, &route.addr, - route.mask, prefix_new->iface); - - interface_update_prefix_assignments(prefix_new, true); } else if (node_old) { - interface_update_prefix_assignments(prefix_old, false); - // Remove null-route - if (prefix_old->iface) - set_ip_source_policy(false, true, IPRULE_PRIORITY_NW, &route.addr, - route.mask, prefix_old->iface); + interface_update_prefix_assignments(prefix_old, false); system_del_route(NULL, &route); } @@ -790,9 +827,12 @@ interface_update_prefix(struct vlist_tree *tree, struct device_prefix* interface_ip_add_device_prefix(struct interface *iface, struct in6_addr *addr, uint8_t length, time_t valid_until, time_t preferred_until, - struct in6_addr *excl_addr, uint8_t excl_length) + struct in6_addr *excl_addr, uint8_t excl_length, const char *pclass) { - struct device_prefix *prefix = calloc(1, sizeof(*prefix)); + if (!pclass) + pclass = (iface) ? iface->name : "local"; + + struct device_prefix *prefix = calloc(1, sizeof(*prefix) + strlen(pclass) + 1); prefix->length = length; prefix->addr = *addr; prefix->preferred_until = preferred_until; @@ -805,6 +845,8 @@ interface_ip_add_device_prefix(struct interface *iface, struct in6_addr *addr, prefix->excl_length = excl_length; } + strcpy(prefix->pclass, pclass); + if (iface) vlist_add(&iface->proto_ip.prefix, &prefix->node, &prefix->addr); else @@ -841,7 +883,7 @@ interface_ip_set_ula_prefix(const char *prefix) interface_update_prefix(NULL, NULL, &ula_prefix->node); ula_prefix = interface_ip_add_device_prefix(NULL, &addr, length, - 0, 0, NULL, 0); + 0, 0, NULL, 0, NULL); } } @@ -1040,8 +1082,13 @@ void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled) if (!strcmp(a->name, ip->iface->name)) interface_set_prefix_address(a, c, ip->iface, enabled); - set_ip_lo_policy(enabled, true, ip->iface); - set_ip_lo_policy(enabled, false, ip->iface); + if (ip->iface && ip->iface->l3_dev.dev) { + set_ip_lo_policy(enabled, true, ip->iface); + set_ip_lo_policy(enabled, false, ip->iface); + + set_ip_source_policy(enabled, true, IPRULE_PRIORITY_REJECT + ip->iface->l3_dev.dev->ifindex, + NULL, 0, NULL, ip->iface, "failed_policy"); + } } void