10 #include "interface.h"
11 #include "interface-ip.h"
26 static const struct blobmsg_policy route_attr[__ROUTE_MAX] = {
27 [ROUTE_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
28 [ROUTE_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
29 [ROUTE_MASK] = { .name = "netmask", .type = BLOBMSG_TYPE_STRING },
30 [ROUTE_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
31 [ROUTE_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
32 [ROUTE_MTU] = { .name = "mtu", .type = BLOBMSG_TYPE_INT32 },
35 const struct config_param_list route_attr_list = {
36 .n_params = __ROUTE_MAX,
41 interface_ip_add_route(struct interface *iface, struct blob_attr *attr, bool v6)
43 struct interface_ip_settings *ip;
44 struct blob_attr *tb[__ROUTE_MAX], *cur;
45 struct device_route *route;
46 int af = v6 ? AF_INET6 : AF_INET;
48 blobmsg_parse(route_attr, __ROUTE_MAX, tb, blobmsg_data(attr), blobmsg_data_len(attr));
51 if ((cur = tb[ROUTE_INTERFACE]) == NULL)
54 iface = vlist_find(&interfaces, blobmsg_data(cur), iface, node);
58 ip = &iface->config_ip;
60 ip = &iface->proto_ip;
63 route = calloc(1, sizeof(*route));
67 route->mask = v6 ? 128 : 32;
68 if ((cur = tb[ROUTE_MASK]) != NULL) {
69 route->mask = parse_netmask_string(blobmsg_data(cur), v6);
70 if (route->mask > (v6 ? 128 : 32))
74 if ((cur = tb[ROUTE_TARGET]) != NULL) {
75 if (!inet_pton(af, blobmsg_data(cur), &route->addr)) {
76 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur));
81 if ((cur = tb[ROUTE_GATEWAY]) != NULL) {
82 if (!inet_pton(af, blobmsg_data(cur), &route->nexthop)) {
83 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur));
88 if ((cur = tb[ROUTE_METRIC]) != NULL)
89 route->metric = blobmsg_get_u32(cur);
91 if ((cur = tb[ROUTE_MTU]) != NULL)
92 route->mtu = blobmsg_get_u32(cur);
94 vlist_add(&ip->route, &route->node, &route->mask);
102 addr_cmp(const void *k1, const void *k2, void *ptr)
104 return memcmp(k1, k2, sizeof(struct device_addr) -
105 offsetof(struct device_addr, mask));
109 route_cmp(const void *k1, const void *k2, void *ptr)
111 return memcmp(k1, k2, sizeof(struct device_route) -
112 offsetof(struct device_route, mask));
116 interface_update_proto_addr(struct vlist_tree *tree,
117 struct vlist_node *node_new,
118 struct vlist_node *node_old)
120 struct interface_ip_settings *ip;
121 struct interface *iface;
123 struct device_addr *a_new = NULL, *a_old = NULL;
126 ip = container_of(tree, struct interface_ip_settings, addr);
128 dev = iface->l3_dev->dev;
131 a_new = container_of(node_new, struct device_addr, node);
133 if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET4 &&
137 uint32_t *a = (uint32_t *) &a_new->addr;
139 mask >>= a_new->mask;
140 a_new->broadcast = *a | mask;
145 a_old = container_of(node_old, struct device_addr, node);
147 if (a_new && a_old) {
150 if (a_old->flags != a_new->flags)
153 if ((a_new->flags & DEVADDR_FAMILY) == DEVADDR_INET4 &&
154 a_new->broadcast != a_old->broadcast)
159 if (!(a_old->flags & DEVADDR_EXTERNAL) && a_old->enabled && !keep)
160 system_del_address(dev, a_old);
165 if (!(a_new->flags & DEVADDR_EXTERNAL) && !keep)
166 system_add_address(dev, a_new);
167 a_new->enabled = true;
172 enable_route(struct interface_ip_settings *ip, struct device_route *route)
174 if (ip->no_defaultroute && !route->mask)
181 interface_update_proto_route(struct vlist_tree *tree,
182 struct vlist_node *node_new,
183 struct vlist_node *node_old)
185 struct interface_ip_settings *ip;
186 struct interface *iface;
188 struct device_route *route_old, *route_new;
191 ip = container_of(tree, struct interface_ip_settings, route);
193 dev = iface->l3_dev->dev;
195 route_old = container_of(node_old, struct device_route, node);
196 route_new = container_of(node_new, struct device_route, node);
198 if (node_old && node_new)
199 keep = !memcmp(&route_old->nexthop, &route_new->nexthop, sizeof(route_old->nexthop));
202 if (!(route_old->flags & DEVADDR_EXTERNAL) && route_old->enabled && !keep)
203 system_del_route(dev, route_old);
208 bool _enabled = enable_route(ip, route_new);
210 if (!(route_new->flags & DEVADDR_EXTERNAL) && !keep && _enabled)
211 system_add_route(dev, route_new);
213 route_new->enabled = _enabled;
218 interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
220 struct dns_server *s;
222 s = calloc(1, sizeof(*s));
224 if (inet_pton(s->af, str, &s->addr.in))
228 if (inet_pton(s->af, str, &s->addr.in))
235 D(INTERFACE, "Add IPv%c DNS server: %s\n",
236 s->af == AF_INET6 ? '6' : '4', str);
237 vlist_simple_add(&ip->dns_servers, &s->node);
241 interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
243 struct blob_attr *cur;
246 blobmsg_for_each_attr(cur, list, rem) {
247 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
250 if (!blobmsg_check_attr(cur, NULL))
253 interface_add_dns_server(ip, blobmsg_data(cur));
258 interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
260 struct dns_search_domain *s;
261 int len = strlen(str);
263 s = calloc(1, sizeof(*s) + len + 1);
267 D(INTERFACE, "Add DNS search domain: %s\n", str);
268 memcpy(s->name, str, len);
269 vlist_simple_add(&ip->dns_search, &s->node);
273 interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
275 struct blob_attr *cur;
278 blobmsg_for_each_attr(cur, list, rem) {
279 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
282 if (!blobmsg_check_attr(cur, NULL))
285 interface_add_dns_search_domain(ip, blobmsg_data(cur));
290 write_resolv_conf_entries(FILE *f, struct interface_ip_settings *ip)
292 struct dns_server *s;
293 struct dns_search_domain *d;
297 vlist_simple_for_each_element(&ip->dns_servers, s, node) {
298 str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
302 fprintf(f, "nameserver %s\n", str);
305 vlist_simple_for_each_element(&ip->dns_search, d, node) {
306 fprintf(f, "search %s\n", d->name);
311 interface_write_resolv_conf(void)
313 struct interface *iface;
314 char *path = alloca(strlen(resolv_conf) + 5);
317 sprintf(path, "%s.tmp", resolv_conf);
319 f = fopen(path, "w");
321 D(INTERFACE, "Failed to open %s for writing\n", path);
325 vlist_for_each_element(&interfaces, iface, node) {
326 if (iface->state != IFS_UP)
329 if (vlist_simple_empty(&iface->proto_ip.dns_search) &&
330 vlist_simple_empty(&iface->proto_ip.dns_servers) &&
331 vlist_simple_empty(&iface->config_ip.dns_search) &&
332 vlist_simple_empty(&iface->config_ip.dns_servers))
335 fprintf(f, "# Interface %s\n", iface->name);
336 write_resolv_conf_entries(f, &iface->config_ip);
337 write_resolv_conf_entries(f, &iface->proto_ip);
340 if (rename(path, resolv_conf) < 0) {
341 D(INTERFACE, "Failed to replace %s\n", resolv_conf);
346 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled)
348 struct device_addr *addr;
349 struct device_route *route;
352 ip->enabled = enabled;
353 dev = ip->iface->l3_dev->dev;
357 vlist_for_each_element(&ip->addr, addr, node) {
358 if (addr->enabled == enabled)
362 system_add_address(dev, addr);
364 system_del_address(dev, addr);
365 addr->enabled = enabled;
368 vlist_for_each_element(&ip->route, route, node) {
369 bool _enabled = enabled;
371 if (!enable_route(ip, route))
374 if (route->enabled == _enabled)
378 system_add_route(dev, route);
380 system_del_route(dev, route);
381 route->enabled = _enabled;
386 interface_ip_update_start(struct interface_ip_settings *ip)
388 vlist_simple_update(&ip->dns_servers);
389 vlist_simple_update(&ip->dns_search);
390 vlist_update(&ip->route);
391 vlist_update(&ip->addr);
395 interface_ip_update_complete(struct interface_ip_settings *ip)
397 vlist_simple_flush(&ip->dns_servers);
398 vlist_simple_flush(&ip->dns_search);
399 vlist_flush(&ip->route);
400 vlist_flush(&ip->addr);
404 interface_ip_flush(struct interface_ip_settings *ip)
406 vlist_simple_flush_all(&ip->dns_servers);
407 vlist_simple_flush_all(&ip->dns_search);
408 vlist_flush_all(&ip->route);
409 vlist_flush_all(&ip->addr);
413 interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
417 vlist_simple_init(&ip->dns_search, struct dns_search_domain, node);
418 vlist_simple_init(&ip->dns_servers, struct dns_server, node);
419 vlist_init(&ip->route, route_cmp, interface_update_proto_route);
420 vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr);