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
);