16 static struct blob_buf b;
17 static int reload_pipe[2];
18 struct list_head leases = LIST_HEAD_INIT(leases);
19 struct list_head interfaces = LIST_HEAD_INIT(interfaces);
20 struct config config = {.legacy = false, .dhcp_cb = NULL,
21 .dhcp_statefile = NULL, .log_level = LOG_INFO};
27 IFACE_ATTR_DYNAMICDHCP,
41 IFACE_ATTR_FILTER_CLASS,
42 IFACE_ATTR_DHCPV6_RAW,
43 IFACE_ATTR_RA_DEFAULT,
44 IFACE_ATTR_RA_MANAGEMENT,
45 IFACE_ATTR_RA_OFFLINK,
46 IFACE_ATTR_RA_PREFERENCE,
47 IFACE_ATTR_RA_ADVROUTER,
48 IFACE_ATTR_RA_MININTERVAL,
49 IFACE_ATTR_RA_MAXINTERVAL,
50 IFACE_ATTR_RA_LIFETIME,
51 IFACE_ATTR_PD_MANAGER,
53 IFACE_ATTR_NDPROXY_ROUTING,
54 IFACE_ATTR_NDPROXY_SLAVE,
58 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
59 [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
60 [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
61 [IFACE_ATTR_NETWORKID] = { .name = "networkid", .type = BLOBMSG_TYPE_STRING },
62 [IFACE_ATTR_DYNAMICDHCP] = { .name = "dynamicdhcp", .type = BLOBMSG_TYPE_BOOL },
63 [IFACE_ATTR_IGNORE] = { .name = "ignore", .type = BLOBMSG_TYPE_BOOL },
64 [IFACE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
65 [IFACE_ATTR_START] = { .name = "start", .type = BLOBMSG_TYPE_INT32 },
66 [IFACE_ATTR_LIMIT] = { .name = "limit", .type = BLOBMSG_TYPE_INT32 },
67 [IFACE_ATTR_MASTER] = { .name = "master", .type = BLOBMSG_TYPE_BOOL },
68 [IFACE_ATTR_UPSTREAM] = { .name = "upstream", .type = BLOBMSG_TYPE_ARRAY },
69 [IFACE_ATTR_RA] = { .name = "ra", .type = BLOBMSG_TYPE_STRING },
70 [IFACE_ATTR_DHCPV4] = { .name = "dhcpv4", .type = BLOBMSG_TYPE_STRING },
71 [IFACE_ATTR_DHCPV6] = { .name = "dhcpv6", .type = BLOBMSG_TYPE_STRING },
72 [IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
73 [IFACE_ATTR_ROUTER] = { .name = "router", .type = BLOBMSG_TYPE_ARRAY },
74 [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
75 [IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
76 [IFACE_ATTR_FILTER_CLASS] = { .name = "filter_class", .type = BLOBMSG_TYPE_STRING },
77 [IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
78 [IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
79 [IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
80 [IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
81 [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
82 [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
83 [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
84 [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL },
85 [IFACE_ATTR_RA_MININTERVAL] = { .name = "ra_mininterval", .type = BLOBMSG_TYPE_INT32 },
86 [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
87 [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
88 [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
89 [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
92 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
93 [IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING },
94 [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
95 [IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING },
98 const struct uci_blob_param_list interface_attr_list = {
99 .n_params = IFACE_ATTR_MAX,
100 .params = iface_attrs,
101 .info = iface_attr_info,
109 LEASE_ATTR_LEASETIME,
114 static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
115 [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
116 [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
117 [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
118 [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
119 [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
120 [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
123 const struct uci_blob_param_list lease_attr_list = {
124 .n_params = LEASE_ATTR_MAX,
125 .params = lease_attrs,
129 ODHCPD_ATTR_MAINDHCP,
130 ODHCPD_ATTR_LEASEFILE,
131 ODHCPD_ATTR_LEASETRIGGER,
132 ODHCPD_ATTR_LOGLEVEL,
136 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
137 [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
138 [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
139 [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
140 [ODHCPD_ATTR_LOGLEVEL] = { .name = "loglevel", .type = BLOBMSG_TYPE_INT32 },
143 const struct uci_blob_param_list odhcpd_attr_list = {
144 .n_params = ODHCPD_ATTR_MAX,
145 .params = odhcpd_attrs,
148 static int mkdir_p(char *dir, mode_t mask)
150 char *l = strrchr(dir, '/');
158 if (mkdir_p(dir, mask))
163 ret = mkdir(dir, mask);
164 if (ret && errno == EEXIST)
168 syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno));
173 static void free_lease(struct lease *l)
182 static struct interface* get_interface(const char *name)
185 list_for_each_entry(c, &interfaces, head)
186 if (!strcmp(c->name, name))
191 static void set_interface_defaults(struct interface *iface)
194 iface->learn_routes = 1;
195 iface->dhcpv4_leasetime = 43200;
196 iface->ra_maxinterval = 600;
197 iface->ra_mininterval = iface->ra_maxinterval/3;
198 iface->ra_lifetime = -1;
201 static void clean_interface(struct interface *iface)
205 free(iface->upstream);
206 free(iface->dhcpv4_router);
207 free(iface->dhcpv4_dns);
208 free(iface->dhcpv6_raw);
209 free(iface->filter_class);
210 memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
211 set_interface_defaults(iface);
214 static void close_interface(struct interface *iface)
216 if (iface->head.next)
217 list_del(&iface->head);
219 setup_router_interface(iface, false);
220 setup_dhcpv6_interface(iface, false);
221 setup_ndp_interface(iface, false);
222 setup_dhcpv4_interface(iface, false);
224 clean_interface(iface);
228 static int parse_mode(const char *mode)
230 if (!strcmp(mode, "disabled"))
231 return RELAYD_DISABLED;
232 else if (!strcmp(mode, "server"))
233 return RELAYD_SERVER;
234 else if (!strcmp(mode, "relay"))
236 else if (!strcmp(mode, "hybrid"))
237 return RELAYD_HYBRID;
242 static void set_config(struct uci_section *s)
244 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
246 blob_buf_init(&b, 0);
247 uci_to_blob(&b, s, &odhcpd_attr_list);
248 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
250 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
251 config.legacy = blobmsg_get_bool(c);
253 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
254 free(config.dhcp_statefile);
255 config.dhcp_statefile = strdup(blobmsg_get_string(c));
258 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
259 free(config.dhcp_cb);
260 config.dhcp_cb = strdup(blobmsg_get_string(c));
263 if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) {
264 int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK);
266 if (config.log_level != log_level) {
267 config.log_level = log_level;
268 setlogmask(LOG_UPTO(config.log_level));
273 static double parse_leasetime(struct blob_attr *c) {
274 char *val = blobmsg_get_string(c), *endptr = NULL;
275 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
277 if (time && endptr && endptr[0]) {
278 if (endptr[0] == 's')
280 else if (endptr[0] == 'm')
282 else if (endptr[0] == 'h')
284 else if (endptr[0] == 'd')
286 else if (endptr[0] == 'w')
287 time *= 7 * 24 * 3600;
301 static int set_lease(struct uci_section *s)
303 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
305 blob_buf_init(&b, 0);
306 uci_to_blob(&b, s, &lease_attr_list);
307 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
310 if ((c = tb[LEASE_ATTR_NAME]))
311 hostlen = blobmsg_data_len(c);
313 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
318 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
320 if ((c = tb[LEASE_ATTR_IP]))
321 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
324 if ((c = tb[LEASE_ATTR_MAC]))
325 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
328 if ((c = tb[LEASE_ATTR_DUID])) {
329 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
330 lease->duid = malloc(duidlen);
334 ssize_t len = odhcpd_unhexlify(lease->duid,
335 duidlen, blobmsg_get_string(c));
340 lease->duid_len = len;
343 if ((c = tb[LEASE_ATTR_HOSTID])) {
345 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
350 if ((c = tb[LEASE_ATTR_LEASETIME])) {
351 double time = parse_leasetime(c);
355 lease->dhcpv4_leasetime = time;
358 list_add(&lease->head, &leases);
368 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
370 struct blob_attr *tb[IFACE_ATTR_MAX], *c;
371 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, data, len);
373 if (tb[IFACE_ATTR_INTERFACE])
374 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
379 struct interface *iface = get_interface(name);
381 iface = calloc(1, sizeof(*iface));
385 strncpy(iface->name, name, sizeof(iface->name) - 1);
387 set_interface_defaults(iface);
389 list_add(&iface->head, &interfaces);
393 const char *ifname = NULL;
395 if ((c = tb[IFACE_ATTR_IFNAME]))
396 ifname = blobmsg_get_string(c);
397 else if ((c = tb[IFACE_ATTR_NETWORKID]))
398 ifname = blobmsg_get_string(c);
402 if (overwrite || !iface->ifname[0])
403 ifname = ubus_get_ifname(name);
406 if (!iface->ifname[0] && !ifname)
410 strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
412 if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
417 if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
418 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
420 if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
421 iface->ignore = blobmsg_get_bool(c);
423 if ((c = tb[IFACE_ATTR_LEASETIME])) {
424 double time = parse_leasetime(c);
428 iface->dhcpv4_leasetime = time;
431 if ((c = tb[IFACE_ATTR_START])) {
432 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
435 iface->dhcpv4 = RELAYD_SERVER;
438 if ((c = tb[IFACE_ATTR_LIMIT]))
439 iface->dhcpv4_end.s_addr = htonl(
440 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
442 if ((c = tb[IFACE_ATTR_MASTER]))
443 iface->master = blobmsg_get_bool(c);
445 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
446 struct blob_attr *cur;
449 blobmsg_for_each_attr(cur, c, rem) {
450 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
453 iface->upstream = realloc(iface->upstream,
454 iface->upstream_len + blobmsg_data_len(cur));
455 if (!iface->upstream)
458 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
459 iface->upstream_len += blobmsg_data_len(cur);
464 if ((c = tb[IFACE_ATTR_RA])) {
465 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
471 if ((c = tb[IFACE_ATTR_DHCPV4])) {
472 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
473 iface->dhcpv4 = mode;
478 if ((c = tb[IFACE_ATTR_DHCPV6])) {
479 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
480 iface->dhcpv6 = mode;
485 if ((c = tb[IFACE_ATTR_NDP])) {
486 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
492 if ((c = tb[IFACE_ATTR_ROUTER])) {
493 struct blob_attr *cur;
496 blobmsg_for_each_attr(cur, c, rem) {
497 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
500 struct in_addr addr4;
501 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
502 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
503 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
504 if (!iface->dhcpv4_router)
507 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
513 if ((c = tb[IFACE_ATTR_DNS])) {
514 struct blob_attr *cur;
517 iface->always_rewrite_dns = true;
518 blobmsg_for_each_attr(cur, c, rem) {
519 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
522 struct in_addr addr4;
523 struct in6_addr addr6;
524 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
525 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
526 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
527 if (!iface->dhcpv4_dns)
530 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
531 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
532 iface->dns = realloc(iface->dns,
533 (++iface->dns_cnt) * sizeof(*iface->dns));
537 iface->dns[iface->dns_cnt - 1] = addr6;
543 if ((c = tb[IFACE_ATTR_DOMAIN])) {
544 struct blob_attr *cur;
547 blobmsg_for_each_attr(cur, c, rem) {
548 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
552 char *domain = blobmsg_get_string(cur);
553 size_t domainlen = strlen(domain);
554 if (domainlen > 0 && domain[domainlen - 1] == '.')
555 domain[domainlen - 1] = 0;
557 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
561 iface->search = realloc(iface->search, iface->search_len + len);
565 memcpy(&iface->search[iface->search_len], buf, len);
566 iface->search_len += len;
570 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
571 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
572 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
575 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
576 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
577 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
578 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
581 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
582 iface->default_router = blobmsg_get_u32(c);
584 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
585 iface->managed = blobmsg_get_u32(c);
587 if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
588 iface->ra_not_onlink = blobmsg_get_bool(c);
590 if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
591 iface->ra_advrouter = blobmsg_get_bool(c);
593 if ((c = tb[IFACE_ATTR_RA_MININTERVAL]))
594 iface->ra_mininterval = blobmsg_get_u32(c);
596 if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
597 iface->ra_maxinterval = blobmsg_get_u32(c);
599 if ((c = tb[IFACE_ATTR_RA_LIFETIME]))
600 iface->ra_lifetime = blobmsg_get_u32(c);
602 if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
603 const char *prio = blobmsg_get_string(c);
605 if (!strcmp(prio, "high"))
606 iface->route_preference = 1;
607 else if (!strcmp(prio, "low"))
608 iface->route_preference = -1;
609 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
610 iface->route_preference = 0;
615 if ((c = tb[IFACE_ATTR_PD_MANAGER]))
616 strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
617 sizeof(iface->dhcpv6_pd_manager) - 1);
619 if ((c = tb[IFACE_ATTR_PD_CER]) &&
620 inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
623 if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
624 iface->learn_routes = blobmsg_get_bool(c);
626 if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
627 iface->external = blobmsg_get_bool(c);
632 close_interface(iface);
636 static int set_interface(struct uci_section *s)
638 blob_buf_init(&b, 0);
639 uci_to_blob(&b, s, &interface_attr_list);
641 return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
644 void odhcpd_reload(void)
646 struct uci_context *uci = uci_alloc_context();
648 while (!list_empty(&leases))
649 free_lease(list_first_entry(&leases, struct lease, head));
651 struct interface *master = NULL, *i, *n;
656 list_for_each_entry(i, &interfaces, head)
659 struct uci_package *dhcp = NULL;
660 if (!uci_load(uci, "dhcp", &dhcp)) {
661 struct uci_element *e;
662 uci_foreach_element(&dhcp->sections, e) {
663 struct uci_section *s = uci_to_section(e);
664 if (!strcmp(s->type, "host"))
666 else if (!strcmp(s->type, "odhcpd"))
670 uci_foreach_element(&dhcp->sections, e) {
671 struct uci_section *s = uci_to_section(e);
672 if (!strcmp(s->type, "dhcp"))
677 if (config.dhcp_statefile) {
678 char *path = strdup(config.dhcp_statefile);
680 mkdir_p(dirname(path), 0755);
685 ubus_apply_network();
688 bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
691 list_for_each_entry(i, &interfaces, head) {
695 if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
696 any_dhcpv6_slave = true;
698 if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
701 if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
702 any_ndp_slave = true;
705 /* Evaluate hybrid mode for master */
706 list_for_each_entry(i, &interfaces, head) {
710 enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
712 if (!ubus_has_prefix(i->name, i->ifname))
713 hybrid_mode = RELAYD_RELAY;
716 if (i->dhcpv6 == RELAYD_HYBRID)
717 i->dhcpv6 = hybrid_mode;
719 if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
720 i->dhcpv6 = RELAYD_DISABLED;
722 if (i->ra == RELAYD_HYBRID)
725 if (i->ra == RELAYD_RELAY && !any_ra_slave)
726 i->ra = RELAYD_DISABLED;
728 if (i->ndp == RELAYD_HYBRID)
729 i->ndp = hybrid_mode;
731 if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
732 i->ndp = RELAYD_DISABLED;
734 if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
739 list_for_each_entry_safe(i, n, &interfaces, head) {
741 /* Resolve hybrid mode */
742 if (i->dhcpv6 == RELAYD_HYBRID)
743 i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
744 RELAYD_RELAY : RELAYD_SERVER;
746 if (i->ra == RELAYD_HYBRID)
747 i->ra = (master && master->ra == RELAYD_RELAY) ?
748 RELAYD_RELAY : RELAYD_SERVER;
750 if (i->ndp == RELAYD_HYBRID)
751 i->ndp = (master && master->ndp == RELAYD_RELAY) ?
752 RELAYD_RELAY : RELAYD_DISABLED;
754 setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
755 setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
756 setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
757 setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
763 uci_unload(uci, dhcp);
764 uci_free_context(uci);
767 static void handle_signal(int signal)
771 if (signal == SIGHUP) {
772 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
777 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
780 if (read(u->fd, b, sizeof(b)) < 0) {}
785 static struct uloop_fd reload_fd = { .cb = reload_cb };
787 void odhcpd_run(void)
789 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
791 reload_fd.fd = reload_pipe[0];
792 uloop_fd_add(&reload_fd, ULOOP_READ);
794 signal(SIGTERM, handle_signal);
795 signal(SIGINT, handle_signal);
796 signal(SIGHUP, handle_signal);
806 while (!list_empty(&interfaces))
807 close_interface(list_first_entry(&interfaces, struct interface, head));