ifname should be l3_device
[project/odhcpd.git] / src / config.c
1 #include <resolv.h>
2 #include <signal.h>
3 #include <arpa/inet.h>
4
5 #include <uci.h>
6 #include <uci_blob.h>
7
8 #include "odhcpd.h"
9
10 static struct blob_buf b;
11 struct list_head leases = LIST_HEAD_INIT(leases);
12 struct list_head interfaces = LIST_HEAD_INIT(interfaces);
13 struct config config = {false, NULL, NULL};
14
15 enum {
16         IFACE_ATTR_INTERFACE,
17         IFACE_ATTR_IFNAME,
18         IFACE_ATTR_NETWORKID,
19         IFACE_ATTR_DYNAMICDHCP,
20         IFACE_ATTR_IGNORE,
21         IFACE_ATTR_LEASETIME,
22         IFACE_ATTR_LIMIT,
23         IFACE_ATTR_START,
24         IFACE_ATTR_MASTER,
25         IFACE_ATTR_UPSTREAM,
26         IFACE_ATTR_RA,
27         IFACE_ATTR_DHCPV4,
28         IFACE_ATTR_DHCPV6,
29         IFACE_ATTR_NDP,
30         IFACE_ATTR_DNS,
31         IFACE_ATTR_DOMAIN,
32         IFACE_ATTR_ULA_COMPAT,
33         IFACE_ATTR_RA_DEFAULT,
34         IFACE_ATTR_RA_MANAGEMENT,
35         IFACE_ATTR_RA_OFFLINK,
36         IFACE_ATTR_RA_PREFERENCE,
37         IFACE_ATTR_NDPROXY_ROUTING,
38         IFACE_ATTR_NDPROXY_SLAVE,
39         IFACE_ATTR_NDPROXY_STATIC,
40         IFACE_ATTR_MAX
41 };
42
43 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
44         [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
45         [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
46         [IFACE_ATTR_NETWORKID] = { .name = "networkid", .type = BLOBMSG_TYPE_STRING },
47         [IFACE_ATTR_DYNAMICDHCP] = { .name = "dynamicdhcp", .type = BLOBMSG_TYPE_BOOL },
48         [IFACE_ATTR_IGNORE] = { .name = "ignore", .type = BLOBMSG_TYPE_BOOL },
49         [IFACE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
50         [IFACE_ATTR_START] = { .name = "start", .type = BLOBMSG_TYPE_INT32 },
51         [IFACE_ATTR_LIMIT] = { .name = "limit", .type = BLOBMSG_TYPE_INT32 },
52         [IFACE_ATTR_MASTER] = { .name = "master", .type = BLOBMSG_TYPE_BOOL },
53         [IFACE_ATTR_UPSTREAM] = { .name = "upstream", .type = BLOBMSG_TYPE_ARRAY },
54         [IFACE_ATTR_RA] = { .name = "ra", .type = BLOBMSG_TYPE_STRING },
55         [IFACE_ATTR_DHCPV4] = { .name = "dhcpv4", .type = BLOBMSG_TYPE_STRING },
56         [IFACE_ATTR_DHCPV6] = { .name = "dhcpv6", .type = BLOBMSG_TYPE_STRING },
57         [IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
58         [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
59         [IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
60         [IFACE_ATTR_ULA_COMPAT] = { .name = "ula_compat", .type = BLOBMSG_TYPE_BOOL },
61         [IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
62         [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
63         [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
64         [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
65         [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
66         [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
67         [IFACE_ATTR_NDPROXY_STATIC] = { .name = "ndproxy_static", .type = BLOBMSG_TYPE_ARRAY },
68 };
69
70 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
71         [IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING },
72         [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
73         [IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING },
74         [IFACE_ATTR_NDPROXY_STATIC] = { .type = BLOBMSG_TYPE_STRING },
75 };
76
77 const struct uci_blob_param_list interface_attr_list = {
78         .n_params = IFACE_ATTR_MAX,
79         .params = iface_attrs,
80         .info = iface_attr_info,
81 };
82
83
84 enum {
85         LEASE_ATTR_IP,
86         LEASE_ATTR_MAC,
87         LEASE_ATTR_DUID,
88         LEASE_ATTR_HOSTID,
89         LEASE_ATTR_HOSTNAME,
90         LEASE_ATTR_MAX
91 };
92
93
94 static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
95         [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
96         [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
97         [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
98         [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
99         [LEASE_ATTR_HOSTNAME] = { .name = "hostname", .type = BLOBMSG_TYPE_STRING },
100 };
101
102
103 const struct uci_blob_param_list lease_attr_list = {
104         .n_params = LEASE_ATTR_MAX,
105         .params = lease_attrs,
106 };
107
108
109 enum {
110         ODHCPD_ATTR_LEGACY,
111         ODHCPD_ATTR_LEASEFILE,
112         ODHCPD_ATTR_LEASETRIGGER,
113         ODHCPD_ATTR_MAX
114 };
115
116
117 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
118         [ODHCPD_ATTR_LEGACY] = { .name = "legacy", .type = BLOBMSG_TYPE_BOOL },
119         [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
120         [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
121 };
122
123
124 const struct uci_blob_param_list odhcpd_attr_list = {
125         .n_params = ODHCPD_ATTR_MAX,
126         .params = odhcpd_attrs,
127 };
128
129
130 static struct interface* get_interface(const char *name)
131 {
132         struct interface *c;
133         list_for_each_entry(c, &interfaces, head)
134                 if (!strcmp(c->name, name))
135                         return c;
136         return NULL;
137 }
138
139
140 static void clean_interface(struct interface *iface)
141 {
142         free(iface->dns);
143         free(iface->search);
144         free(iface->upstream);
145         free(iface->static_ndp);
146         free(iface->dhcpv4_dns);
147         memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
148 }
149
150
151 static void close_interface(struct interface *iface)
152 {
153         if (iface->head.next)
154                 list_del(&iface->head);
155
156         setup_router_interface(iface, false);
157         setup_dhcpv6_interface(iface, false);
158         setup_ndp_interface(iface, false);
159         setup_dhcpv4_interface(iface, false);
160
161         clean_interface(iface);
162         free(iface);
163 }
164
165
166 static int parse_mode(const char *mode)
167 {
168         if (!strcmp(mode, "disabled")) {
169                 return RELAYD_DISABLED;
170         } else if (!strcmp(mode, "server")) {
171                 return RELAYD_SERVER;
172         } else if (!strcmp(mode, "relay")) {
173                 return RELAYD_RELAY;
174         } else if (!strcmp(mode, "hybrid")) {
175                 return RELAYD_HYBRID;
176         } else {
177                 return -1;
178         }
179 }
180
181
182 static void set_config(struct uci_section *s)
183 {
184         struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
185
186         blob_buf_init(&b, 0);
187         uci_to_blob(&b, s, &lease_attr_list);
188         blobmsg_parse(lease_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
189
190         if ((c = tb[ODHCPD_ATTR_LEGACY]))
191                 config.legacy = blobmsg_get_bool(c);
192
193         if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
194                 free(config.dhcp_statefile);
195                 config.dhcp_statefile = strdup(blobmsg_get_string(c));
196         }
197
198         if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
199                 free(config.dhcp_cb);
200                 config.dhcp_cb = strdup(blobmsg_get_string(c));
201         }
202 }
203
204
205 static int set_lease(struct uci_section *s)
206 {
207         struct blob_attr *tb[LEASE_ATTR_MAX], *c;
208
209         blob_buf_init(&b, 0);
210         uci_to_blob(&b, s, &lease_attr_list);
211         blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
212
213         size_t hostlen = 1;
214         if ((c = tb[LEASE_ATTR_HOSTNAME]))
215                 hostlen = blobmsg_data_len(c);
216
217         struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
218
219         if (hostlen > 1)
220                 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
221
222         if ((c = tb[LEASE_ATTR_IP]))
223                 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
224                         goto err;
225
226         if ((c = tb[LEASE_ATTR_MAC]))
227                 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
228                         goto err;
229
230         if ((c = tb[LEASE_ATTR_DUID])) {
231                 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
232                 lease->duid = malloc(duidlen);
233                 ssize_t len = odhcpd_unhexlify(lease->duid,
234                                 duidlen, blobmsg_get_string(c));
235
236                 if (len < 0)
237                         goto err;
238
239                 lease->duid_len = len;
240         }
241
242         if ((c = tb[LEASE_ATTR_HOSTID]))
243                 if (odhcpd_unhexlify((uint8_t*)&lease->hostid, sizeof(lease->hostid),
244                                 blobmsg_get_string(c)) < 0)
245                         goto err;
246
247         list_add(&lease->head, &leases);
248         return 0;
249
250 err:
251         free(lease->duid);
252         free(lease);
253         return -1;
254 }
255
256
257 int config_parse_interface(struct blob_attr *b, const char *name, bool overwrite)
258 {
259         struct blob_attr *tb[IFACE_ATTR_MAX], *c;
260         blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, blob_data(b), blob_len(b));
261
262         if (tb[IFACE_ATTR_INTERFACE])
263                 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
264
265         if (!name)
266                 return -1;
267
268         struct interface *iface = get_interface(name);
269         if (!iface) {
270                 iface = calloc(1, sizeof(*iface));
271                 strncpy(iface->name, name, sizeof(iface->name) - 1);
272                 list_add(&iface->head, &interfaces);
273         } else {
274                 clean_interface(iface);
275         }
276
277         const char *ifname = NULL;
278 #ifdef WITH_UBUS
279         if (overwrite)
280                 ifname = ubus_get_ifname(name);
281 #endif
282         if ((c = tb[IFACE_ATTR_IFNAME]))
283                 ifname = blobmsg_get_string(c);
284         else if ((c = tb[IFACE_ATTR_NETWORKID]))
285                 ifname = blobmsg_get_string(c);
286
287         if (!ifname)
288                 return -1;
289
290         strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
291         iface->inuse = true;
292
293         if (overwrite)
294                 clean_interface(iface);
295
296         if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
297                 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
298
299         if ((c = tb[IFACE_ATTR_IGNORE]))
300                 iface->ignore = blobmsg_get_bool(c);
301
302         if ((c = tb[IFACE_ATTR_LEASETIME])) {
303                 char *val = blobmsg_get_string(c), *endptr;
304                 double time = strtod(val, &endptr);
305                 if (time && endptr[0]) {
306                         if (endptr[0] == 's')
307                                 time *= 1;
308                         else if (endptr[0] == 'm')
309                                 time *= 60;
310                         else if (endptr[0] == 'h')
311                                 time *= 3600;
312                         else if (endptr[0] == 'd')
313                                 time *= 24 * 3600;
314                         else if (endptr[0] == 'w')
315                                 time *= 7 * 24 * 3600;
316                         else
317                                 goto err;
318                 }
319
320                 if (time >= 60)
321                         iface->dhcpv4_leasetime = time;
322         }
323
324         if ((c = tb[IFACE_ATTR_START])) {
325                 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
326
327                 if (config.legacy)
328                         iface->dhcpv4 = RELAYD_SERVER;
329         }
330
331         if ((c = tb[IFACE_ATTR_LIMIT]))
332                 iface->dhcpv4_end.s_addr = htonl(
333                                 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
334
335         if ((c = tb[IFACE_ATTR_MASTER]))
336                 iface->master = blobmsg_get_bool(c);
337
338         if ((c = tb[IFACE_ATTR_UPSTREAM])) {
339                 struct blob_attr *cur;
340                 unsigned rem;
341
342                 blobmsg_for_each_attr(cur, c, rem) {
343                         if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
344                                 continue;
345
346                         iface->upstream = realloc(iface->upstream,
347                                         iface->upstream_len + blobmsg_data_len(cur));
348                         memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
349                         iface->upstream_len += blobmsg_data_len(cur);
350                 }
351         }
352
353         int mode;
354         if ((c = tb[IFACE_ATTR_RA])) {
355                 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
356                         iface->ra = mode;
357                 else
358                         goto err;
359         }
360
361         if ((c = tb[IFACE_ATTR_DHCPV4])) {
362                 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
363                         iface->dhcpv4 = mode;
364                 else
365                         goto err;
366         }
367
368         if ((c = tb[IFACE_ATTR_DHCPV6])) {
369                 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
370                         iface->dhcpv6 = mode;
371                 else
372                         goto err;
373         }
374
375         if ((c = tb[IFACE_ATTR_NDP])) {
376                 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
377                         iface->ndp = mode;
378                 else
379                         goto err;
380         }
381
382         if ((c = tb[IFACE_ATTR_DNS])) {
383                 struct blob_attr *cur;
384                 unsigned rem;
385
386                 iface->always_rewrite_dns = true;
387                 blobmsg_for_each_attr(cur, c, rem) {
388                         if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
389                                 continue;
390
391                         struct in_addr addr4;
392                         struct in6_addr addr6;
393                         if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
394                                 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
395                                                 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
396                                 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
397                         } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
398                                 iface->dns = realloc(iface->dns,
399                                                 (++iface->dns_cnt) * sizeof(*iface->dns));
400                                 iface->dns[iface->dns_cnt - 1] = addr6;
401                         } else {
402                                 goto err;
403                         }
404                 }
405         }
406
407         if ((c = tb[IFACE_ATTR_DOMAIN])) {
408                 struct blob_attr *cur;
409                 unsigned rem;
410
411                 blobmsg_for_each_attr(cur, c, rem) {
412                         if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
413                                 continue;
414
415                         uint8_t buf[256];
416                         int len = dn_comp(blobmsg_get_string(cur), buf, sizeof(buf), NULL, NULL);
417                         if (len <= 0)
418                                 goto err;
419
420                         iface->search = realloc(iface->search, iface->search_len + len);
421                         memcpy(&iface->search[iface->search_len], buf, len);
422                         iface->search_len += len;
423                 }
424         }
425
426         if ((c = tb[IFACE_ATTR_ULA_COMPAT]))
427                 iface->deprecate_ula_if_public_avail = blobmsg_get_bool(c);
428
429         if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
430                 iface->default_router = blobmsg_get_u32(c);
431
432         if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
433                 iface->managed = blobmsg_get_u32(c);
434
435         if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
436                 iface->ra_not_onlink = blobmsg_get_bool(c);
437
438         if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
439                 const char *prio = blobmsg_get_string(c);
440
441                 if (!strcmp(prio, "high"))
442                         iface->route_preference = 1;
443                 else if (!strcmp(prio, "low"))
444                         iface->route_preference = -1;
445                 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
446                         iface->route_preference = 0;
447                 else
448                         goto err;
449         }
450
451         if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
452                 iface->learn_routes = blobmsg_get_bool(c);
453
454         if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
455                 iface->external = blobmsg_get_bool(c);
456
457         if ((c = tb[IFACE_ATTR_NDPROXY_STATIC])) {
458                 struct blob_attr *cur;
459                 unsigned rem;
460
461                 blobmsg_for_each_attr(cur, c, rem) {
462                         if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
463                                 continue;
464
465                         int len = blobmsg_data_len(cur);
466                         iface->static_ndp = realloc(iface->static_ndp, iface->static_ndp_len + len);
467                         memcpy(&iface->static_ndp[iface->static_ndp_len], blobmsg_get_string(cur), len);
468                         iface->static_ndp_len += len;
469                 }
470         }
471
472         iface->ignore = (iface->ifindex = if_nametoindex(iface->ifname)) < 0;
473         return 0;
474
475 err:
476         close_interface(iface);
477         return -1;
478 }
479
480 static int set_interface(struct uci_section *s)
481 {
482         blob_buf_init(&b, 0);
483         uci_to_blob(&b, s, &interface_attr_list);
484         return config_parse_interface(b.head, s->e.name, true);
485 }
486
487
488 static volatile int do_reload = false;
489 static void set_stop(int signal)
490 {
491         uloop_end();
492         do_reload = (signal == SIGHUP);
493 }
494
495 void odhcpd_run(void)
496 {
497         struct uci_context *uci = uci_alloc_context();
498         signal(SIGTERM, set_stop);
499         signal(SIGHUP, set_stop);
500         signal(SIGINT, set_stop);
501
502 #ifdef WITH_UBUS
503         init_ubus();
504 #endif
505
506         do {
507                 do_reload = uloop_cancelled = false;
508
509                 struct lease *l;
510                 list_for_each_entry(l, &leases, head) {
511                         list_del(&l->head);
512                         free(l->duid);
513                         free(l);
514                 }
515
516                 struct uci_package *dhcp = NULL;
517                 if (!uci_load(uci, "dhcp", &dhcp)) {
518                         struct uci_element *e;
519                         uci_foreach_element(&dhcp->sections, e) {
520                                 struct uci_section *s = uci_to_section(e);
521                                 if (!strcmp(s->type, "lease"))
522                                         set_lease(s);
523                                 else if (!strcmp(s->type, "odhcpd"))
524                                         set_config(s);
525                         }
526
527                         uci_foreach_element(&dhcp->sections, e) {
528                                 struct uci_section *s = uci_to_section(e);
529                                 if (!strcmp(s->type, "dhcp"))
530                                         set_interface(s);
531                         }
532                 }
533
534 #ifdef WITH_UBUS
535                 ubus_apply_network();
536 #endif
537
538                 // Evaluate hybrid mode for master
539                 struct interface *master = NULL, *i, *n;
540                 list_for_each_entry(i, &interfaces, head) {
541                         if (!i->master)
542                                 continue;
543
544                         enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
545 #ifdef WITH_UBUS
546                         if (ubus_has_prefix(i->name, i->ifname))
547                                 hybrid_mode = RELAYD_RELAY;
548 #endif
549
550                         if (i->dhcpv6 == RELAYD_HYBRID)
551                                 i->dhcpv6 = hybrid_mode;
552
553                         if (i->ra == RELAYD_HYBRID)
554                                 i->ra = hybrid_mode;
555
556                         if (i->ndp == RELAYD_HYBRID)
557                                 i->ndp = hybrid_mode;
558
559                         if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
560                                 master = i;
561                 }
562
563
564                 list_for_each_entry_safe(i, n, &interfaces, head) {
565                         if (i->inuse) {
566                                 // Resolve hybrid mode
567                                 if (i->dhcpv6 == RELAYD_HYBRID)
568                                         i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
569                                                         RELAYD_RELAY : RELAYD_SERVER;
570
571                                 if (i->ra == RELAYD_HYBRID)
572                                         i->ra = (master && master->ra == RELAYD_RELAY) ?
573                                                         RELAYD_RELAY : RELAYD_SERVER;
574
575                                 if (i->ndp == RELAYD_HYBRID)
576                                         i->ndp = (master && master->ndp == RELAYD_RELAY) ?
577                                                         RELAYD_RELAY : RELAYD_SERVER;
578
579                                 setup_router_interface(i, true);
580                                 setup_dhcpv6_interface(i, true);
581                                 setup_ndp_interface(i, true);
582                                 setup_dhcpv4_interface(i, true);
583                         } else {
584                                 close_interface(i);
585                         }
586                 }
587
588                 uloop_run();
589
590                 if (dhcp)
591                         uci_unload(uci, dhcp);
592         } while (do_reload);
593 }
594