10 #include "interface.h"
11 #include "interface-ip.h"
17 addr_cmp(const void *k1, const void *k2, void *ptr)
19 return memcmp(k1, k2, sizeof(struct device_addr) -
20 offsetof(struct device_addr, mask));
24 route_cmp(const void *k1, const void *k2, void *ptr)
26 return memcmp(k1, k2, sizeof(struct device_route) -
27 offsetof(struct device_route, mask));
31 interface_update_proto_addr(struct vlist_tree *tree,
32 struct vlist_node *node_new,
33 struct vlist_node *node_old)
35 struct interface_ip_settings *ip;
36 struct interface *iface;
38 struct device_addr *addr;
40 ip = container_of(tree, struct interface_ip_settings, addr);
42 dev = iface->l3_dev->dev;
45 addr = container_of(node_old, struct device_addr, node);
46 if (!(addr->flags & DEVADDR_EXTERNAL))
47 system_del_address(dev, addr);
52 addr = container_of(node_new, struct device_addr, node);
53 if (!(addr->flags & DEVADDR_EXTERNAL))
54 system_add_address(dev, addr);
59 interface_update_proto_route(struct vlist_tree *tree,
60 struct vlist_node *node_new,
61 struct vlist_node *node_old)
63 struct interface_ip_settings *ip;
64 struct interface *iface;
66 struct device_route *route;
68 ip = container_of(tree, struct interface_ip_settings, route);
70 dev = iface->l3_dev->dev;
73 route = container_of(node_old, struct device_route, node);
74 if (!(route->flags & DEVADDR_EXTERNAL))
75 system_del_route(dev, route);
80 route = container_of(node_new, struct device_route, node);
81 if (!(route->flags & DEVADDR_EXTERNAL))
82 system_add_route(dev, route);
87 interface_add_dns_server(struct interface_ip_settings *ip, const char *str)
91 s = calloc(1, sizeof(*s));
93 if (inet_pton(s->af, str, &s->addr.in))
97 if (inet_pton(s->af, str, &s->addr.in))
104 D(INTERFACE, "Add IPv%c DNS server: %s\n",
105 s->af == AF_INET6 ? '6' : '4', str);
106 list_add_tail(&s->list, &ip->dns_servers);
110 interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list)
112 struct blob_attr *cur;
115 blobmsg_for_each_attr(cur, list, rem) {
116 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
119 if (!blobmsg_check_attr(cur, NULL))
122 interface_add_dns_server(ip, blobmsg_data(cur));
127 interface_add_dns_search_domain(struct interface_ip_settings *ip, const char *str)
129 struct dns_search_domain *s;
130 int len = strlen(str);
132 s = calloc(1, sizeof(*s) + len + 1);
136 D(INTERFACE, "Add DNS search domain: %s\n", str);
137 memcpy(s->name, str, len);
138 list_add_tail(&s->list, &ip->dns_search);
142 interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list)
144 struct blob_attr *cur;
147 blobmsg_for_each_attr(cur, list, rem) {
148 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING)
151 if (!blobmsg_check_attr(cur, NULL))
154 interface_add_dns_server(ip, blobmsg_data(cur));
159 interface_clear_dns_servers(struct interface_ip_settings *ip)
161 struct dns_server *s, *tmp;
163 list_for_each_entry_safe(s, tmp, &ip->dns_servers, list) {
170 interface_clear_dns_search(struct interface_ip_settings *ip)
172 struct dns_search_domain *s, *tmp;
174 list_for_each_entry_safe(s, tmp, &ip->dns_search, list) {
181 interface_write_resolv_conf(void)
183 struct interface *iface;
184 struct dns_server *s;
185 struct dns_search_domain *d;
186 char *path = alloca(strlen(resolv_conf) + 5);
191 sprintf(path, "%s.tmp", resolv_conf);
193 f = fopen(path, "w");
195 D(INTERFACE, "Failed to open %s for writing\n", path);
199 vlist_for_each_element(&interfaces, iface, node) {
200 if (iface->state != IFS_UP)
203 if (list_empty(&iface->proto_ip.dns_search) &&
204 list_empty(&iface->proto_ip.dns_servers))
207 fprintf(f, "# Interface %s\n", iface->name);
208 list_for_each_entry(s, &iface->proto_ip.dns_servers, list) {
209 str = inet_ntop(s->af, &s->addr, buf, sizeof(buf));
213 fprintf(f, "nameserver %s\n", str);
216 list_for_each_entry(d, &iface->proto_ip.dns_search, list) {
217 fprintf(f, "search %s\n", d->name);
221 if (rename(path, resolv_conf) < 0) {
222 D(INTERFACE, "Failed to replace %s\n", resolv_conf);
228 interface_ip_update_start(struct interface_ip_settings *ip)
230 interface_clear_dns_servers(ip);
231 interface_clear_dns_search(ip);
232 vlist_update(&ip->route);
233 vlist_update(&ip->addr);
237 interface_ip_update_complete(struct interface_ip_settings *ip)
239 vlist_flush(&ip->route);
240 vlist_flush(&ip->addr);
244 interface_ip_flush(struct interface_ip_settings *ip)
246 interface_clear_dns_servers(ip);
247 interface_clear_dns_search(ip);
248 vlist_flush_all(&ip->route);
249 vlist_flush_all(&ip->addr);
253 interface_ip_init(struct interface_ip_settings *ip, struct interface *iface)
256 INIT_LIST_HEAD(&ip->dns_search);
257 INIT_LIST_HEAD(&ip->dns_servers);
258 vlist_init(&ip->route, route_cmp, interface_update_proto_route,
259 struct device_route, node, mask);
260 vlist_init(&ip->addr, addr_cmp, interface_update_proto_addr,
261 struct device_addr, node, mask);