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));
87 route->flags |= DEVADDR_DEVICE;
90 if ((cur = tb[ROUTE_METRIC]) != NULL)
91 route->metric = blobmsg_get_u32(cur);
95 if ((cur = tb[ROUTE_MTU]) != NULL)
96 route->mtu = blobmsg_get_u32(cur);
98 vlist_add(&ip->route, &route->node);
106 addr_cmp(const void *k1, const void *k2, void *ptr)
108 return memcmp(k1, k2, sizeof(struct device_addr) -
109 offsetof(struct device_addr, mask));
113 route_cmp(const void *k1, const void *k2, void *ptr)
115 return memcmp(k1, k2, sizeof(struct device_route) -
116 offsetof(struct device_route, mask));
120 interface_update_proto_addr(struct vlist_tree *tree,
121 struct vlist_node *node_new,
122 struct vlist_node *node_old)
124 struct interface_ip_settings *ip;
125 struct interface *iface;
127 struct device_addr *addr;
130 ip = container_of(tree, struct interface_ip_settings, addr);
132 dev = iface->l3_dev->dev;
134 if (node_old && node_new)
138 addr = container_of(node_old, struct device_addr, node);
139 if (!(addr->flags & DEVADDR_EXTERNAL) && addr->enabled && !keep)
140 system_del_address(dev, addr);
145 addr = container_of(node_new, struct device_addr, node);
146 if (!(addr->flags & DEVADDR_EXTERNAL) && !keep)
147 system_add_address(dev, addr);
148 addr->enabled = true;
153 enable_route(struct interface_ip_settings *ip, struct device_route *route)
155 if (ip->no_defaultroute && !route->mask)
162 interface_update_proto_route(struct vlist_tree *tree,
163 struct vlist_node *node_new,
164 struct vlist_node *node_old)
166 struct interface_ip_settings *ip;
167 struct interface *iface;
169 struct device_route *route_old, *route_new;
172 ip = container_of(tree, struct interface_ip_settings, route);
174 dev = iface->l3_dev->dev;
176 route_old = container_of(node_old, struct device_route, node);
177 route_new = container_of(node_new, struct device_route, node);
179 if (node_old && node_new)
180 keep = !memcmp(&route_old->nexthop, &route_new->nexthop, sizeof(route_old->nexthop));
183 if (!(route_old->flags & DEVADDR_EXTERNAL) && route_old->enabled && !keep)
184 system_del_route(dev, route_old);
189 bool _enabled = enable_route(ip, route_new);
191 if (!(route_new->flags & DEVADDR_EXTERNAL) && !keep && _enabled)
192 system_add_route(dev, route_new);
194 route_new->enabled = _enabled;
199 interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
201 struct dns_server *s;
203 s = calloc(1, sizeof(*s));
205 if (inet_pton(s->af, str, &s->addr.in))
209 if (inet_pton(s->af, str, &s->addr.in))
216 D(INTERFACE, "Add IPv%c DNS server: %s\n",
217 s->af == AF_INET6 ? '6' : '4', str);
218 vlist_simple_add(&ip->dns_servers, &s->node);
222 interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
224 struct blob_attr *cur;
227 blobmsg_for_each_attr(cur, list, rem) {
228 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
231 if (!blobmsg_check_attr(cur, NULL))
234 interface_add_dns_server(ip, blobmsg_data(cur));
239 interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
241 struct dns_search_domain *s;
242 int len = strlen(str);
244 s = calloc(1, sizeof(*s) + len + 1);
248 D(INTERFACE, "Add DNS search domain: %s\n", str);
249 memcpy(s->name, str, len);
250 vlist_simple_add(&ip->dns_search, &s->node);
254 interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
256 struct blob_attr *cur;
259 blobmsg_for_each_attr(cur, list, rem) {
260 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
263 if (!blobmsg_check_attr(cur, NULL))
266 interface_add_dns_search_domain(ip, blobmsg_data(cur));
271 write_resolv_conf_entries(FILE *f, struct interface_ip_settings *ip)
273 struct dns_server *s;
274 struct dns_search_domain *d;
278 vlist_simple_for_each_element(&ip->dns_servers, s, node) {
279 str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
283 fprintf(f, "nameserver %s\n", str);
286 vlist_simple_for_each_element(&ip->dns_search, d, node) {
287 fprintf(f, "search %s\n", d->name);
292 interface_write_resolv_conf(void)
294 struct interface *iface;
295 char *path = alloca(strlen(resolv_conf) + 5);
298 sprintf(path, "%s.tmp", resolv_conf);
300 f = fopen(path, "w");
302 D(INTERFACE, "Failed to open %s for writing\n", path);
306 vlist_for_each_element(&interfaces, iface, node) {
307 if (iface->state != IFS_UP)
310 if (vlist_simple_empty(&iface->proto_ip.dns_search) &&
311 vlist_simple_empty(&iface->proto_ip.dns_servers) &&
312 vlist_simple_empty(&iface->config_ip.dns_search) &&
313 vlist_simple_empty(&iface->config_ip.dns_servers))
316 fprintf(f, "# Interface %s\n", iface->name);
317 write_resolv_conf_entries(f, &iface->config_ip);
318 write_resolv_conf_entries(f, &iface->proto_ip);
321 if (rename(path, resolv_conf) < 0) {
322 D(INTERFACE, "Failed to replace %s\n", resolv_conf);
327 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled)
329 struct device_addr *addr;
330 struct device_route *route;
333 ip->enabled = enabled;
334 dev = ip->iface->l3_dev->dev;
338 vlist_for_each_element(&ip->addr, addr, node) {
339 if (addr->enabled == enabled)
343 system_add_address(dev, addr);
345 system_del_address(dev, addr);
346 addr->enabled = enabled;
349 vlist_for_each_element(&ip->route, route, node) {
350 bool _enabled = enabled;
352 if (!enable_route(ip, route))
355 if (route->enabled == _enabled)
359 system_add_route(dev, route);
361 system_del_route(dev, route);
362 route->enabled = _enabled;
367 interface_ip_update_start(struct interface_ip_settings *ip)
369 vlist_simple_update(&ip->dns_servers);
370 vlist_simple_update(&ip->dns_search);
371 vlist_update(&ip->route);
372 vlist_update(&ip->addr);
376 interface_ip_update_complete(struct interface_ip_settings *ip)
378 vlist_simple_flush(&ip->dns_servers);
379 vlist_simple_flush(&ip->dns_search);
380 vlist_flush(&ip->route);
381 vlist_flush(&ip->addr);
385 interface_ip_flush(struct interface_ip_settings *ip)
387 vlist_simple_flush_all(&ip->dns_servers);
388 vlist_simple_flush_all(&ip->dns_search);
389 vlist_flush_all(&ip->route);
390 vlist_flush_all(&ip->addr);
394 interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
398 vlist_simple_init(&ip->dns_search, struct dns_search_domain, node);
399 vlist_simple_init(&ip->dns_servers, struct dns_server, node);
400 vlist_init(&ip->route, route_cmp, interface_update_proto_route,
401 struct device_route, node, mask);
402 vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr,
403 struct device_addr, node, mask);