2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
22 #include "interface.h"
23 #include "interface-ip.h"
29 bool config_init = false;
31 static struct uci_context *uci_ctx;
32 static struct uci_package *uci_network;
33 static struct uci_package *uci_wireless;
34 static struct blob_buf b;
37 config_section_idx(struct uci_section *s)
39 struct uci_element *e;
42 uci_foreach_element(&uci_wireless->sections, e) {
43 struct uci_section *cur = uci_to_section(e);
48 if (!strcmp(cur->type, s->type))
56 config_parse_bridge_interface(struct uci_section *s)
60 name = alloca(strlen(s->e.name) + 4);
61 sprintf(name, "br-%s", s->e.name);
62 blobmsg_add_string(&b, "name", name);
64 uci_to_blob(&b, s, bridge_device_type.config_params);
65 if (!device_create(name, &bridge_device_type, b.head)) {
66 D(INTERFACE, "Failed to create bridge for interface '%s'\n", s->e.name);
71 blobmsg_add_string(&b, "ifname", name);
76 config_parse_interface(struct uci_section *s, bool alias)
78 struct interface *iface;
79 const char *type = NULL, *disabled;
80 struct blob_attr *config;
84 disabled = uci_lookup_option_string(uci_ctx, s, "disabled");
85 if (disabled && !strcmp(disabled, "1"))
91 type = uci_lookup_option_string(uci_ctx, s, "type");
92 if (type && !strcmp(type, "bridge")) {
93 if (config_parse_bridge_interface(s))
99 uci_to_blob(&b, s, &interface_attr_list);
101 iface = interface_alloc(s->e.name, b.head);
105 if (iface->proto_handler && iface->proto_handler->config_params)
106 uci_to_blob(&b, s, iface->proto_handler->config_params);
108 if (!bridge && uci_to_blob(&b, s, simple_device_type.config_params))
109 iface->device_config = true;
111 config = blob_memdup(b.head);
116 if (!interface_add_alias(iface, config))
117 goto error_free_config;
119 interface_add(iface, config);
123 * need to look up the interface name again, in case of config update,
124 * the pointer will have changed
126 iface = vlist_find(&interfaces, s->e.name, iface, node);
130 dev = iface->main_dev.dev;
131 if (!dev || !dev->default_config)
134 blob_buf_init(&b, 0);
135 uci_to_blob(&b, s, dev->type->config_params);
136 if (blob_len(b.head) == 0)
139 device_set_config(dev, dev->type, b.head);
148 config_parse_route(struct uci_section *s, bool v6)
152 blob_buf_init(&b, 0);
153 route = blobmsg_open_array(&b, "route");
154 uci_to_blob(&b, s, &route_attr_list);
155 blobmsg_close_array(&b, route);
156 interface_ip_add_route(NULL, blob_data(b.head), v6);
160 config_parse_rule(struct uci_section *s, bool v6)
164 blob_buf_init(&b, 0);
165 rule = blobmsg_open_array(&b, "rule");
166 uci_to_blob(&b, s, &rule_attr_list);
167 blobmsg_close_array(&b, rule);
168 iprule_add(blob_data(b.head), v6);
172 config_init_devices(void)
174 struct uci_element *e;
176 uci_foreach_element(&uci_network->sections, e) {
177 const struct uci_blob_param_list *params = NULL;
178 struct uci_section *s = uci_to_section(e);
179 const struct device_type *devtype = NULL;
181 const char *type, *name;
183 if (strcmp(s->type, "device") != 0)
186 name = uci_lookup_option_string(uci_ctx, s, "name");
190 type = uci_lookup_option_string(uci_ctx, s, "type");
192 if (!strcmp(type, "8021ad"))
193 devtype = &vlandev_device_type;
194 else if (!strcmp(type, "8021q"))
195 devtype = &vlandev_device_type;
196 else if (!strcmp(type, "bridge"))
197 devtype = &bridge_device_type;
198 else if (!strcmp(type, "macvlan"))
199 devtype = &macvlan_device_type;
200 else if (!strcmp(type, "tunnel"))
201 devtype = &tunnel_device_type;
205 params = devtype->config_params;
207 params = simple_device_type.config_params;
209 blob_buf_init(&b, 0);
210 uci_to_blob(&b, s, params);
212 dev = device_create(name, devtype, b.head);
216 dev = device_get(name, 1);
220 device_apply_config(dev, dev->type, blob_memdup(b.head));
222 dev->default_config = false;
226 static struct uci_package *
227 config_init_package(const char *config)
229 struct uci_context *ctx = uci_ctx;
230 struct uci_package *p = NULL;
233 ctx = uci_alloc_context();
236 ctx->flags &= ~UCI_FLAG_STRICT;
238 uci_set_confdir(ctx, config_path);
241 uci_set_savedir(ctx, "./tmp");
244 p = uci_lookup_package(ctx, config);
249 if (uci_load(ctx, config, &p))
256 config_init_interfaces(void)
258 struct uci_element *e;
260 uci_foreach_element(&uci_network->sections, e) {
261 struct uci_section *s = uci_to_section(e);
263 if (!strcmp(s->type, "interface"))
264 config_parse_interface(s, false);
267 uci_foreach_element(&uci_network->sections, e) {
268 struct uci_section *s = uci_to_section(e);
270 if (!strcmp(s->type, "alias"))
271 config_parse_interface(s, true);
276 config_init_routes(void)
278 struct interface *iface;
279 struct uci_element *e;
281 vlist_for_each_element(&interfaces, iface, node)
282 interface_ip_update_start(&iface->config_ip);
284 uci_foreach_element(&uci_network->sections, e) {
285 struct uci_section *s = uci_to_section(e);
287 if (!strcmp(s->type, "route"))
288 config_parse_route(s, false);
289 else if (!strcmp(s->type, "route6"))
290 config_parse_route(s, true);
293 vlist_for_each_element(&interfaces, iface, node)
294 interface_ip_update_complete(&iface->config_ip);
298 config_init_rules(void)
300 struct uci_element *e;
302 iprule_update_start();
304 uci_foreach_element(&uci_network->sections, e) {
305 struct uci_section *s = uci_to_section(e);
307 if (!strcmp(s->type, "rule"))
308 config_parse_rule(s, false);
309 else if (!strcmp(s->type, "rule6"))
310 config_parse_rule(s, true);
313 iprule_update_complete();
317 config_init_globals(void)
319 struct uci_section *globals = uci_lookup_section(
320 uci_ctx, uci_network, "globals");
324 const char *ula_prefix = uci_lookup_option_string(
325 uci_ctx, globals, "ula_prefix");
326 interface_ip_set_ula_prefix(ula_prefix);
330 config_parse_wireless_device(struct uci_section *s)
332 struct wireless_driver *drv;
333 const char *driver_name;
335 driver_name = uci_lookup_option_string(uci_ctx, s, "type");
339 drv = avl_find_element(&wireless_drivers, driver_name, drv, node);
343 blob_buf_init(&b, 0);
344 uci_to_blob(&b, s, drv->device.config);
345 wireless_device_create(drv, s->e.name, b.head);
349 config_parse_wireless_interface(struct wireless_device *wdev, struct uci_section *s)
353 name = alloca(strlen(s->type) + 16);
354 sprintf(name, "@%s[%d]", s->type, config_section_idx(s));
356 blob_buf_init(&b, 0);
357 uci_to_blob(&b, s, wdev->drv->interface.config);
358 wireless_interface_create(wdev, b.head, s->anonymous ? name : s->e.name);
362 config_init_wireless(void)
364 struct wireless_device *wdev;
365 struct uci_element *e;
366 const char *dev_name;
369 DPRINTF("No wireless configuration found\n");
373 vlist_update(&wireless_devices);
375 uci_foreach_element(&uci_wireless->sections, e) {
376 struct uci_section *s = uci_to_section(e);
377 if (strcmp(s->type, "wifi-device") != 0)
380 config_parse_wireless_device(s);
383 vlist_flush(&wireless_devices);
385 vlist_for_each_element(&wireless_devices, wdev, node) {
387 vlist_update(&wdev->interfaces);
390 uci_foreach_element(&uci_wireless->sections, e) {
391 struct uci_section *s = uci_to_section(e);
393 if (strcmp(s->type, "wifi-iface") != 0)
396 dev_name = uci_lookup_option_string(uci_ctx, s, "device");
400 wdev = vlist_find(&wireless_devices, dev_name, wdev, node);
402 DPRINTF("device %s not found!\n", dev_name);
406 config_parse_wireless_interface(wdev, s);
409 vlist_for_each_element(&wireless_devices, wdev, node)
410 vlist_flush(&wdev->interfaces);
414 config_init_all(void)
416 uci_network = config_init_package("network");
418 fprintf(stderr, "Failed to load network config\n");
422 uci_wireless = config_init_package("wireless");
424 vlist_update(&interfaces);
428 device_reset_config();
429 config_init_devices();
430 config_init_interfaces();
431 config_init_routes();
433 config_init_globals();
434 config_init_wireless();
440 device_init_pending();
441 vlist_flush(&interfaces);
442 device_free_unused(NULL);
443 interface_refresh_assignments(false);
444 interface_start_pending();
445 wireless_start_pending();