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;
135 ip = container_of(tree, struct interface_ip_settings, addr);
137 dev = iface->l3_dev->dev;
140 addr = container_of(node_old, struct device_addr, node);
141 if (!(addr->flags & DEVADDR_EXTERNAL) && addr->enabled)
142 system_del_address(dev, addr);
147 addr = container_of(node_new, struct device_addr, node);
148 if (!(addr->flags & DEVADDR_EXTERNAL))
149 system_add_address(dev, addr);
150 addr->enabled = true;
155 interface_update_proto_route(struct vlist_tree *tree,
156 struct vlist_node *node_new,
157 struct vlist_node *node_old)
159 struct interface_ip_settings *ip;
160 struct interface *iface;
162 struct device_route *route;
164 ip = container_of(tree, struct interface_ip_settings, route);
166 dev = iface->l3_dev->dev;
169 route = container_of(node_old, struct device_route, node);
170 if (!(route->flags & DEVADDR_EXTERNAL) && route->enabled)
171 system_del_route(dev, route);
176 route = container_of(node_new, struct device_route, node);
177 if (!(route->flags & DEVADDR_EXTERNAL))
178 system_add_route(dev, route);
179 route->enabled = true;
184 interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
186 struct dns_server *s;
188 s = calloc(1, sizeof(*s));
190 if (inet_pton(s->af, str, &s->addr.in))
194 if (inet_pton(s->af, str, &s->addr.in))
201 D(INTERFACE, "Add IPv%c DNS server: %s\n",
202 s->af == AF_INET6 ? '6' : '4', str);
203 list_add_tail(&s->list, &ip->dns_servers);
207 interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
209 struct blob_attr *cur;
212 blobmsg_for_each_attr(cur, list, rem) {
213 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
216 if (!blobmsg_check_attr(cur, NULL))
219 interface_add_dns_server(ip, blobmsg_data(cur));
224 interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
226 struct dns_search_domain *s;
227 int len = strlen(str);
229 s = calloc(1, sizeof(*s) + len + 1);
233 D(INTERFACE, "Add DNS search domain: %s\n", str);
234 memcpy(s->name, str, len);
235 list_add_tail(&s->list, &ip->dns_search);
239 interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
241 struct blob_attr *cur;
244 blobmsg_for_each_attr(cur, list, rem) {
245 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
248 if (!blobmsg_check_attr(cur, NULL))
251 interface_add_dns_search_domain(ip, blobmsg_data(cur));
256 interface_clear_dns_servers(struct interface_ip_settings *ip)
258 struct dns_server *s, *tmp;
260 list_for_each_entry_safe(s, tmp, &ip->dns_servers, list) {
267 interface_clear_dns_search(struct interface_ip_settings *ip)
269 struct dns_search_domain *s, *tmp;
271 list_for_each_entry_safe(s, tmp, &ip->dns_search, list) {
278 interface_write_resolv_conf(void)
280 struct interface *iface;
281 struct dns_server *s;
282 struct dns_search_domain *d;
283 char *path = alloca(strlen(resolv_conf) + 5);
288 sprintf(path, "%s.tmp", resolv_conf);
290 f = fopen(path, "w");
292 D(INTERFACE, "Failed to open %s for writing\n", path);
296 vlist_for_each_element(&interfaces, iface, node) {
297 if (iface->state != IFS_UP)
300 if (list_empty(&iface->proto_ip.dns_search) &&
301 list_empty(&iface->proto_ip.dns_servers))
304 fprintf(f, "# Interface %s\n", iface->name);
305 list_for_each_entry(s, &iface->proto_ip.dns_servers, list) {
306 str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
310 fprintf(f, "nameserver %s\n", str);
313 list_for_each_entry(d, &iface->proto_ip.dns_search, list) {
314 fprintf(f, "search %s\n", d->name);
318 if (rename(path, resolv_conf) < 0) {
319 D(INTERFACE, "Failed to replace %s\n", resolv_conf);
324 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled)
326 struct device_addr *addr;
327 struct device_route *route;
330 ip->enabled = enabled;
331 dev = ip->iface->l3_dev->dev;
335 vlist_for_each_element(&ip->addr, addr, node) {
336 if (addr->enabled == enabled)
340 system_add_address(dev, addr);
342 system_del_address(dev, addr);
343 addr->enabled = enabled;
346 vlist_for_each_element(&ip->route, route, node) {
347 if (route->enabled == enabled)
351 system_add_route(dev, route);
353 system_del_route(dev, route);
354 route->enabled = enabled;
359 interface_ip_update_start(struct interface_ip_settings *ip)
361 interface_clear_dns_servers(ip);
362 interface_clear_dns_search(ip);
363 vlist_update(&ip->route);
364 vlist_update(&ip->addr);
368 interface_ip_update_complete(struct interface_ip_settings *ip)
370 vlist_flush(&ip->route);
371 vlist_flush(&ip->addr);
375 interface_ip_flush(struct interface_ip_settings *ip)
377 interface_clear_dns_servers(ip);
378 interface_clear_dns_search(ip);
379 vlist_flush_all(&ip->route);
380 vlist_flush_all(&ip->addr);
384 interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
388 INIT_LIST_HEAD(&ip->dns_search);
389 INIT_LIST_HEAD(&ip->dns_servers);
390 vlist_init(&ip->route, route_cmp, interface_update_proto_route,
391 struct device_route, node, mask);
392 vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr,
393 struct device_addr, node, mask);