10 #include "interface.h"
11 #include "interface-ip.h"
27 static const struct blobmsg_policy route_attr[__ROUTE_MAX] = {
28 [ROUTE_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
29 [ROUTE_TARGET] = { .name = "target", .type = BLOBMSG_TYPE_STRING },
30 [ROUTE_MASK] = { .name = "netmask", .type = BLOBMSG_TYPE_STRING },
31 [ROUTE_GATEWAY] = { .name = "gateway", .type = BLOBMSG_TYPE_STRING },
32 [ROUTE_DEVICE] = { .name = "device", .type = BLOBMSG_TYPE_STRING },
33 [ROUTE_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
34 [ROUTE_MTU] = { .name = "mtu", .type = BLOBMSG_TYPE_INT32 },
37 const struct config_param_list route_attr_list = {
38 .n_params = __ROUTE_MAX,
43 interface_ip_add_route(struct interface *iface, struct blob_attr *attr, bool v6)
45 struct interface_ip_settings *ip;
46 struct blob_attr *tb[__ROUTE_MAX], *cur;
47 struct device_route *route;
48 int af = v6 ? AF_INET6 : AF_INET;
51 blobmsg_parse(route_attr, __ROUTE_MAX, tb, blobmsg_data(attr), blobmsg_data_len(attr));
53 if (!tb[ROUTE_GATEWAY] && !tb[ROUTE_DEVICE])
57 if ((cur = tb[ROUTE_INTERFACE]) == NULL)
60 iface = vlist_find(&interfaces, blobmsg_data(cur), iface, node);
64 ip = &iface->config_ip;
67 ip = &iface->proto_ip;
70 route = calloc(1, sizeof(*route));
74 route->mask = v6 ? 128 : 32;
75 if ((cur = tb[ROUTE_MASK]) != NULL) {
76 route->mask = parse_netmask_string(blobmsg_data(cur), v6);
77 if (route->mask > (v6 ? 128 : 32))
81 if ((cur = tb[ROUTE_TARGET]) != NULL) {
82 if (!inet_pton(af, blobmsg_data(cur), &route->addr)) {
83 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur));
88 if ((cur = tb[ROUTE_GATEWAY]) != NULL) {
89 if (!inet_pton(af, blobmsg_data(cur), &route->nexthop)) {
90 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur));
95 if ((cur = tb[ROUTE_METRIC]) != NULL)
96 route->metric = blobmsg_get_u32(cur);
98 if ((cur = tb[ROUTE_MTU]) != NULL)
99 route->mtu = blobmsg_get_u32(cur);
101 if (!config && (cur = tb[ROUTE_DEVICE]) != NULL)
102 route->device = device_get(blobmsg_data(cur), true);
104 vlist_add(&ip->route, &route->node);
112 addr_cmp(const void *k1, const void *k2, void *ptr)
114 return memcmp(k1, k2, sizeof(struct device_addr) -
115 offsetof(struct device_addr, mask));
119 route_cmp(const void *k1, const void *k2, void *ptr)
121 return memcmp(k1, k2, sizeof(struct device_route) -
122 offsetof(struct device_route, mask));
126 interface_update_proto_addr(struct vlist_tree *tree,
127 struct vlist_node *node_new,
128 struct vlist_node *node_old)
130 struct interface_ip_settings *ip;
131 struct interface *iface;
133 struct device_addr *addr;
136 ip = container_of(tree, struct interface_ip_settings, addr);
138 dev = iface->l3_dev->dev;
140 if (node_old && node_new)
144 addr = container_of(node_old, struct device_addr, node);
145 if (!(addr->flags & DEVADDR_EXTERNAL) && addr->enabled && !keep)
146 system_del_address(dev, addr);
151 addr = container_of(node_new, struct device_addr, node);
152 if (!(addr->flags & DEVADDR_EXTERNAL) && !keep)
153 system_add_address(dev, addr);
154 addr->enabled = true;
159 enable_route(struct interface_ip_settings *ip, struct device_route *route)
161 if (ip->no_defaultroute && !route->mask)
168 interface_update_proto_route(struct vlist_tree *tree,
169 struct vlist_node *node_new,
170 struct vlist_node *node_old)
172 struct interface_ip_settings *ip;
173 struct interface *iface;
175 struct device_route *route_old, *route_new;
178 ip = container_of(tree, struct interface_ip_settings, route);
180 dev = iface->l3_dev->dev;
182 route_old = container_of(node_old, struct device_route, node);
183 route_new = container_of(node_new, struct device_route, node);
185 if (node_old && node_new)
186 keep = !memcmp(&route_old->nexthop, &route_new->nexthop, sizeof(route_old->nexthop));
189 if (!(route_old->flags & DEVADDR_EXTERNAL) && route_old->enabled && !keep)
190 system_del_route(dev, route_old);
195 bool _enabled = enable_route(ip, route_new);
197 if (!(route_new->flags & DEVADDR_EXTERNAL) && !keep && _enabled)
198 system_add_route(dev, route_new);
200 route_new->enabled = _enabled;
205 interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
207 struct dns_server *s;
209 s = calloc(1, sizeof(*s));
211 if (inet_pton(s->af, str, &s->addr.in))
215 if (inet_pton(s->af, str, &s->addr.in))
222 D(INTERFACE, "Add IPv%c DNS server: %s\n",
223 s->af == AF_INET6 ? '6' : '4', str);
224 vlist_simple_add(&ip->dns_servers, &s->node);
228 interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
230 struct blob_attr *cur;
233 blobmsg_for_each_attr(cur, list, rem) {
234 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
237 if (!blobmsg_check_attr(cur, NULL))
240 interface_add_dns_server(ip, blobmsg_data(cur));
245 interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
247 struct dns_search_domain *s;
248 int len = strlen(str);
250 s = calloc(1, sizeof(*s) + len + 1);
254 D(INTERFACE, "Add DNS search domain: %s\n", str);
255 memcpy(s->name, str, len);
256 vlist_simple_add(&ip->dns_search, &s->node);
260 interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
262 struct blob_attr *cur;
265 blobmsg_for_each_attr(cur, list, rem) {
266 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
269 if (!blobmsg_check_attr(cur, NULL))
272 interface_add_dns_search_domain(ip, blobmsg_data(cur));
277 write_resolv_conf_entries(FILE *f, struct interface_ip_settings *ip)
279 struct dns_server *s;
280 struct dns_search_domain *d;
284 vlist_simple_for_each_element(&ip->dns_servers, s, node) {
285 str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
289 fprintf(f, "nameserver %s\n", str);
292 vlist_simple_for_each_element(&ip->dns_search, d, node) {
293 fprintf(f, "search %s\n", d->name);
298 interface_write_resolv_conf(void)
300 struct interface *iface;
301 char *path = alloca(strlen(resolv_conf) + 5);
304 sprintf(path, "%s.tmp", resolv_conf);
306 f = fopen(path, "w");
308 D(INTERFACE, "Failed to open %s for writing\n", path);
312 vlist_for_each_element(&interfaces, iface, node) {
313 if (iface->state != IFS_UP)
316 if (vlist_simple_empty(&iface->proto_ip.dns_search) &&
317 vlist_simple_empty(&iface->proto_ip.dns_servers) &&
318 vlist_simple_empty(&iface->config_ip.dns_search) &&
319 vlist_simple_empty(&iface->config_ip.dns_servers))
322 fprintf(f, "# Interface %s\n", iface->name);
323 write_resolv_conf_entries(f, &iface->config_ip);
324 write_resolv_conf_entries(f, &iface->proto_ip);
327 if (rename(path, resolv_conf) < 0) {
328 D(INTERFACE, "Failed to replace %s\n", resolv_conf);
333 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled)
335 struct device_addr *addr;
336 struct device_route *route;
339 ip->enabled = enabled;
340 dev = ip->iface->l3_dev->dev;
344 vlist_for_each_element(&ip->addr, addr, node) {
345 if (addr->enabled == enabled)
349 system_add_address(dev, addr);
351 system_del_address(dev, addr);
352 addr->enabled = enabled;
355 vlist_for_each_element(&ip->route, route, node) {
356 bool _enabled = enabled;
358 if (!enable_route(ip, route))
361 if (route->enabled == _enabled)
365 system_add_route(dev, route);
367 system_del_route(dev, route);
368 route->enabled = _enabled;
373 interface_ip_update_start(struct interface_ip_settings *ip)
375 vlist_simple_update(&ip->dns_servers);
376 vlist_simple_update(&ip->dns_search);
377 vlist_update(&ip->route);
378 vlist_update(&ip->addr);
382 interface_ip_update_complete(struct interface_ip_settings *ip)
384 vlist_simple_flush(&ip->dns_servers);
385 vlist_simple_flush(&ip->dns_search);
386 vlist_flush(&ip->route);
387 vlist_flush(&ip->addr);
391 interface_ip_flush(struct interface_ip_settings *ip)
393 vlist_simple_flush_all(&ip->dns_servers);
394 vlist_simple_flush_all(&ip->dns_search);
395 vlist_flush_all(&ip->route);
396 vlist_flush_all(&ip->addr);
400 interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
404 vlist_simple_init(&ip->dns_search, struct dns_search_domain, node);
405 vlist_simple_init(&ip->dns_servers, struct dns_server, node);
406 vlist_init(&ip->route, route_cmp, interface_update_proto_route,
407 struct device_route, node, mask);
408 vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr,
409 struct device_addr, node, mask);