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->ra_maxinterval = 600;
196 iface->ra_mininterval = iface->ra_maxinterval/3;
197 iface->ra_lifetime = -1;
200 static void clean_interface(struct interface *iface)
204 free(iface->upstream);
205 free(iface->dhcpv4_router);
206 free(iface->dhcpv4_dns);
207 free(iface->dhcpv6_raw);
208 free(iface->filter_class);
209 memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
210 set_interface_defaults(iface);
213 static void close_interface(struct interface *iface)
215 if (iface->head.next)
216 list_del(&iface->head);
218 setup_router_interface(iface, false);
219 setup_dhcpv6_interface(iface, false);
220 setup_ndp_interface(iface, false);
221 setup_dhcpv4_interface(iface, false);
223 clean_interface(iface);
227 static int parse_mode(const char *mode)
229 if (!strcmp(mode, "disabled"))
230 return RELAYD_DISABLED;
231 else if (!strcmp(mode, "server"))
232 return RELAYD_SERVER;
233 else if (!strcmp(mode, "relay"))
235 else if (!strcmp(mode, "hybrid"))
236 return RELAYD_HYBRID;
241 static void set_config(struct uci_section *s)
243 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
245 blob_buf_init(&b, 0);
246 uci_to_blob(&b, s, &odhcpd_attr_list);
247 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
249 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
250 config.legacy = blobmsg_get_bool(c);
252 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
253 free(config.dhcp_statefile);
254 config.dhcp_statefile = strdup(blobmsg_get_string(c));
257 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
258 free(config.dhcp_cb);
259 config.dhcp_cb = strdup(blobmsg_get_string(c));
262 if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) {
263 int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK);
265 if (config.log_level != log_level) {
266 config.log_level = log_level;
267 setlogmask(LOG_UPTO(config.log_level));
272 static double parse_leasetime(struct blob_attr *c) {
273 char *val = blobmsg_get_string(c), *endptr = NULL;
274 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
276 if (time && endptr && endptr[0]) {
277 if (endptr[0] == 's')
279 else if (endptr[0] == 'm')
281 else if (endptr[0] == 'h')
283 else if (endptr[0] == 'd')
285 else if (endptr[0] == 'w')
286 time *= 7 * 24 * 3600;
300 static int set_lease(struct uci_section *s)
302 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
304 blob_buf_init(&b, 0);
305 uci_to_blob(&b, s, &lease_attr_list);
306 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
309 if ((c = tb[LEASE_ATTR_NAME]))
310 hostlen = blobmsg_data_len(c);
312 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
317 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
319 if ((c = tb[LEASE_ATTR_IP]))
320 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
323 if ((c = tb[LEASE_ATTR_MAC]))
324 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
327 if ((c = tb[LEASE_ATTR_DUID])) {
328 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
329 lease->duid = malloc(duidlen);
333 ssize_t len = odhcpd_unhexlify(lease->duid,
334 duidlen, blobmsg_get_string(c));
339 lease->duid_len = len;
342 if ((c = tb[LEASE_ATTR_HOSTID])) {
344 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
349 if ((c = tb[LEASE_ATTR_LEASETIME])) {
350 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);
429 iface->dhcpv4_leasetime = time;
432 if ((c = tb[IFACE_ATTR_START])) {
433 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
436 iface->dhcpv4 = RELAYD_SERVER;
439 if ((c = tb[IFACE_ATTR_LIMIT]))
440 iface->dhcpv4_end.s_addr = htonl(
441 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
443 if ((c = tb[IFACE_ATTR_MASTER]))
444 iface->master = blobmsg_get_bool(c);
446 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
447 struct blob_attr *cur;
450 blobmsg_for_each_attr(cur, c, rem) {
451 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
454 iface->upstream = realloc(iface->upstream,
455 iface->upstream_len + blobmsg_data_len(cur));
456 if (!iface->upstream)
459 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
460 iface->upstream_len += blobmsg_data_len(cur);
465 if ((c = tb[IFACE_ATTR_RA])) {
466 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
472 if ((c = tb[IFACE_ATTR_DHCPV4])) {
473 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
474 iface->dhcpv4 = mode;
479 if ((c = tb[IFACE_ATTR_DHCPV6])) {
480 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
481 iface->dhcpv6 = mode;
486 if ((c = tb[IFACE_ATTR_NDP])) {
487 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
493 if ((c = tb[IFACE_ATTR_ROUTER])) {
494 struct blob_attr *cur;
497 blobmsg_for_each_attr(cur, c, rem) {
498 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
501 struct in_addr addr4;
502 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
503 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
504 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
505 if (!iface->dhcpv4_router)
508 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
514 if ((c = tb[IFACE_ATTR_DNS])) {
515 struct blob_attr *cur;
518 iface->always_rewrite_dns = true;
519 blobmsg_for_each_attr(cur, c, rem) {
520 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
523 struct in_addr addr4;
524 struct in6_addr addr6;
525 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
526 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
527 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
528 if (!iface->dhcpv4_dns)
531 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
532 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
533 iface->dns = realloc(iface->dns,
534 (++iface->dns_cnt) * sizeof(*iface->dns));
538 iface->dns[iface->dns_cnt - 1] = addr6;
544 if ((c = tb[IFACE_ATTR_DOMAIN])) {
545 struct blob_attr *cur;
548 blobmsg_for_each_attr(cur, c, rem) {
549 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
553 char *domain = blobmsg_get_string(cur);
554 size_t domainlen = strlen(domain);
555 if (domainlen > 0 && domain[domainlen - 1] == '.')
556 domain[domainlen - 1] = 0;
558 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
562 iface->search = realloc(iface->search, iface->search_len + len);
566 memcpy(&iface->search[iface->search_len], buf, len);
567 iface->search_len += len;
571 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
572 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
573 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
576 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
577 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
578 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
579 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
582 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
583 iface->default_router = blobmsg_get_u32(c);
585 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
586 iface->managed = blobmsg_get_u32(c);
588 if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
589 iface->ra_not_onlink = blobmsg_get_bool(c);
591 if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
592 iface->ra_advrouter = blobmsg_get_bool(c);
594 if ((c = tb[IFACE_ATTR_RA_MININTERVAL]))
595 iface->ra_mininterval = blobmsg_get_u32(c);
597 if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
598 iface->ra_maxinterval = blobmsg_get_u32(c);
600 if ((c = tb[IFACE_ATTR_RA_LIFETIME]))
601 iface->ra_lifetime = blobmsg_get_u32(c);
603 if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
604 const char *prio = blobmsg_get_string(c);
606 if (!strcmp(prio, "high"))
607 iface->route_preference = 1;
608 else if (!strcmp(prio, "low"))
609 iface->route_preference = -1;
610 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
611 iface->route_preference = 0;
616 if ((c = tb[IFACE_ATTR_PD_MANAGER]))
617 strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
618 sizeof(iface->dhcpv6_pd_manager) - 1);
620 if ((c = tb[IFACE_ATTR_PD_CER]) &&
621 inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
624 if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
625 iface->learn_routes = blobmsg_get_bool(c);
627 if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
628 iface->external = blobmsg_get_bool(c);
633 close_interface(iface);
637 static int set_interface(struct uci_section *s)
639 blob_buf_init(&b, 0);
640 uci_to_blob(&b, s, &interface_attr_list);
642 return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
645 void odhcpd_reload(void)
647 struct uci_context *uci = uci_alloc_context();
649 while (!list_empty(&leases))
650 free_lease(list_first_entry(&leases, struct lease, head));
652 struct interface *master = NULL, *i, *n;
657 list_for_each_entry(i, &interfaces, head)
660 struct uci_package *dhcp = NULL;
661 if (!uci_load(uci, "dhcp", &dhcp)) {
662 struct uci_element *e;
663 uci_foreach_element(&dhcp->sections, e) {
664 struct uci_section *s = uci_to_section(e);
665 if (!strcmp(s->type, "host"))
667 else if (!strcmp(s->type, "odhcpd"))
671 uci_foreach_element(&dhcp->sections, e) {
672 struct uci_section *s = uci_to_section(e);
673 if (!strcmp(s->type, "dhcp"))
678 if (config.dhcp_statefile) {
679 char *path = strdup(config.dhcp_statefile);
681 mkdir_p(dirname(path), 0755);
686 ubus_apply_network();
689 bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
692 list_for_each_entry(i, &interfaces, head) {
696 if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
697 any_dhcpv6_slave = true;
699 if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
702 if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
703 any_ndp_slave = true;
706 /* Evaluate hybrid mode for master */
707 list_for_each_entry(i, &interfaces, head) {
711 enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
713 if (!ubus_has_prefix(i->name, i->ifname))
714 hybrid_mode = RELAYD_RELAY;
717 if (i->dhcpv6 == RELAYD_HYBRID)
718 i->dhcpv6 = hybrid_mode;
720 if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
721 i->dhcpv6 = RELAYD_DISABLED;
723 if (i->ra == RELAYD_HYBRID)
726 if (i->ra == RELAYD_RELAY && !any_ra_slave)
727 i->ra = RELAYD_DISABLED;
729 if (i->ndp == RELAYD_HYBRID)
730 i->ndp = hybrid_mode;
732 if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
733 i->ndp = RELAYD_DISABLED;
735 if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
740 list_for_each_entry_safe(i, n, &interfaces, head) {
742 /* Resolve hybrid mode */
743 if (i->dhcpv6 == RELAYD_HYBRID)
744 i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
745 RELAYD_RELAY : RELAYD_SERVER;
747 if (i->ra == RELAYD_HYBRID)
748 i->ra = (master && master->ra == RELAYD_RELAY) ?
749 RELAYD_RELAY : RELAYD_SERVER;
751 if (i->ndp == RELAYD_HYBRID)
752 i->ndp = (master && master->ndp == RELAYD_RELAY) ?
753 RELAYD_RELAY : RELAYD_DISABLED;
755 setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
756 setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
757 setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
758 setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
764 uci_unload(uci, dhcp);
765 uci_free_context(uci);
768 static void handle_signal(int signal)
772 if (signal == SIGHUP) {
773 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
778 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
781 if (read(u->fd, b, sizeof(b)) < 0) {}
786 static struct uloop_fd reload_fd = { .cb = reload_cb };
788 void odhcpd_run(void)
790 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
792 reload_fd.fd = reload_pipe[0];
793 uloop_fd_add(&reload_fd, ULOOP_READ);
795 signal(SIGTERM, handle_signal);
796 signal(SIGINT, handle_signal);
797 signal(SIGHUP, handle_signal);
807 while (!list_empty(&interfaces))
808 close_interface(list_first_entry(&interfaces, struct interface, head));