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, .main_dhcpv4 = false,
21 .dhcp_cb = NULL, .dhcp_statefile = NULL,
22 .log_level = LOG_INFO};
28 IFACE_ATTR_DYNAMICDHCP,
42 IFACE_ATTR_FILTER_CLASS,
43 IFACE_ATTR_DHCPV6_RAW,
44 IFACE_ATTR_RA_DEFAULT,
45 IFACE_ATTR_RA_MANAGEMENT,
46 IFACE_ATTR_RA_OFFLINK,
47 IFACE_ATTR_RA_PREFERENCE,
48 IFACE_ATTR_RA_ADVROUTER,
49 IFACE_ATTR_RA_MININTERVAL,
50 IFACE_ATTR_RA_MAXINTERVAL,
51 IFACE_ATTR_RA_LIFETIME,
52 IFACE_ATTR_RA_USELEASETIME,
53 IFACE_ATTR_PD_MANAGER,
55 IFACE_ATTR_NDPROXY_ROUTING,
56 IFACE_ATTR_NDPROXY_SLAVE,
60 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
61 [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
62 [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
63 [IFACE_ATTR_NETWORKID] = { .name = "networkid", .type = BLOBMSG_TYPE_STRING },
64 [IFACE_ATTR_DYNAMICDHCP] = { .name = "dynamicdhcp", .type = BLOBMSG_TYPE_BOOL },
65 [IFACE_ATTR_IGNORE] = { .name = "ignore", .type = BLOBMSG_TYPE_BOOL },
66 [IFACE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
67 [IFACE_ATTR_START] = { .name = "start", .type = BLOBMSG_TYPE_INT32 },
68 [IFACE_ATTR_LIMIT] = { .name = "limit", .type = BLOBMSG_TYPE_INT32 },
69 [IFACE_ATTR_MASTER] = { .name = "master", .type = BLOBMSG_TYPE_BOOL },
70 [IFACE_ATTR_UPSTREAM] = { .name = "upstream", .type = BLOBMSG_TYPE_ARRAY },
71 [IFACE_ATTR_RA] = { .name = "ra", .type = BLOBMSG_TYPE_STRING },
72 [IFACE_ATTR_DHCPV4] = { .name = "dhcpv4", .type = BLOBMSG_TYPE_STRING },
73 [IFACE_ATTR_DHCPV6] = { .name = "dhcpv6", .type = BLOBMSG_TYPE_STRING },
74 [IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
75 [IFACE_ATTR_ROUTER] = { .name = "router", .type = BLOBMSG_TYPE_ARRAY },
76 [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
77 [IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
78 [IFACE_ATTR_FILTER_CLASS] = { .name = "filter_class", .type = BLOBMSG_TYPE_STRING },
79 [IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
80 [IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
81 [IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
82 [IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
83 [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
84 [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
85 [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
86 [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL },
87 [IFACE_ATTR_RA_MININTERVAL] = { .name = "ra_mininterval", .type = BLOBMSG_TYPE_INT32 },
88 [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
89 [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
90 [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL },
91 [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
92 [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
95 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
96 [IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING },
97 [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
98 [IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING },
101 const struct uci_blob_param_list interface_attr_list = {
102 .n_params = IFACE_ATTR_MAX,
103 .params = iface_attrs,
104 .info = iface_attr_info,
112 LEASE_ATTR_LEASETIME,
117 static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
118 [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
119 [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
120 [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
121 [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
122 [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
123 [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
126 const struct uci_blob_param_list lease_attr_list = {
127 .n_params = LEASE_ATTR_MAX,
128 .params = lease_attrs,
133 ODHCPD_ATTR_MAINDHCP,
134 ODHCPD_ATTR_LEASEFILE,
135 ODHCPD_ATTR_LEASETRIGGER,
136 ODHCPD_ATTR_LOGLEVEL,
140 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
141 [ODHCPD_ATTR_LEGACY] = { .name = "legacy", .type = BLOBMSG_TYPE_BOOL },
142 [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
143 [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
144 [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
145 [ODHCPD_ATTR_LOGLEVEL] = { .name = "loglevel", .type = BLOBMSG_TYPE_INT32 },
148 const struct uci_blob_param_list odhcpd_attr_list = {
149 .n_params = ODHCPD_ATTR_MAX,
150 .params = odhcpd_attrs,
153 static int mkdir_p(char *dir, mode_t mask)
155 char *l = strrchr(dir, '/');
163 if (mkdir_p(dir, mask))
168 ret = mkdir(dir, mask);
169 if (ret && errno == EEXIST)
173 syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno));
178 static void free_lease(struct lease *l)
187 static struct interface* get_interface(const char *name)
190 list_for_each_entry(c, &interfaces, head)
191 if (!strcmp(c->name, name))
196 static void set_interface_defaults(struct interface *iface)
199 iface->learn_routes = 1;
200 iface->dhcpv4_leasetime = 43200;
201 iface->ra_maxinterval = 600;
202 iface->ra_mininterval = iface->ra_maxinterval/3;
203 iface->ra_lifetime = -1;
206 static void clean_interface(struct interface *iface)
210 free(iface->upstream);
211 free(iface->dhcpv4_router);
212 free(iface->dhcpv4_dns);
213 free(iface->dhcpv6_raw);
214 free(iface->filter_class);
215 memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
216 set_interface_defaults(iface);
219 static void close_interface(struct interface *iface)
221 if (iface->head.next)
222 list_del(&iface->head);
224 setup_router_interface(iface, false);
225 setup_dhcpv6_interface(iface, false);
226 setup_ndp_interface(iface, false);
227 setup_dhcpv4_interface(iface, false);
229 clean_interface(iface);
233 static int parse_mode(const char *mode)
235 if (!strcmp(mode, "disabled"))
236 return RELAYD_DISABLED;
237 else if (!strcmp(mode, "server"))
238 return RELAYD_SERVER;
239 else if (!strcmp(mode, "relay"))
241 else if (!strcmp(mode, "hybrid"))
242 return RELAYD_HYBRID;
247 static void set_config(struct uci_section *s)
249 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
251 blob_buf_init(&b, 0);
252 uci_to_blob(&b, s, &odhcpd_attr_list);
253 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
255 if ((c = tb[ODHCPD_ATTR_LEGACY]))
256 config.legacy = blobmsg_get_bool(c);
258 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
259 config.main_dhcpv4 = blobmsg_get_bool(c);
261 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
262 free(config.dhcp_statefile);
263 config.dhcp_statefile = strdup(blobmsg_get_string(c));
266 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
267 free(config.dhcp_cb);
268 config.dhcp_cb = strdup(blobmsg_get_string(c));
271 if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) {
272 int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK);
274 if (config.log_level != log_level) {
275 config.log_level = log_level;
276 setlogmask(LOG_UPTO(config.log_level));
281 static double parse_leasetime(struct blob_attr *c) {
282 char *val = blobmsg_get_string(c), *endptr = NULL;
283 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
285 if (time && endptr && endptr[0]) {
286 if (endptr[0] == 's')
288 else if (endptr[0] == 'm')
290 else if (endptr[0] == 'h')
292 else if (endptr[0] == 'd')
294 else if (endptr[0] == 'w')
295 time *= 7 * 24 * 3600;
309 static int set_lease(struct uci_section *s)
311 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
313 blob_buf_init(&b, 0);
314 uci_to_blob(&b, s, &lease_attr_list);
315 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
318 if ((c = tb[LEASE_ATTR_NAME]))
319 hostlen = blobmsg_data_len(c);
321 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
326 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
328 if ((c = tb[LEASE_ATTR_IP]))
329 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
332 if ((c = tb[LEASE_ATTR_MAC]))
333 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
336 if ((c = tb[LEASE_ATTR_DUID])) {
337 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
338 lease->duid = malloc(duidlen);
342 ssize_t len = odhcpd_unhexlify(lease->duid,
343 duidlen, blobmsg_get_string(c));
348 lease->duid_len = len;
351 if ((c = tb[LEASE_ATTR_HOSTID])) {
353 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
358 if ((c = tb[LEASE_ATTR_LEASETIME])) {
359 double time = parse_leasetime(c);
363 lease->dhcpv4_leasetime = time;
366 list_add(&lease->head, &leases);
376 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
378 struct blob_attr *tb[IFACE_ATTR_MAX], *c;
379 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, data, len);
381 if (tb[IFACE_ATTR_INTERFACE])
382 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
387 struct interface *iface = get_interface(name);
389 iface = calloc(1, sizeof(*iface));
393 strncpy(iface->name, name, sizeof(iface->name) - 1);
395 set_interface_defaults(iface);
397 list_add(&iface->head, &interfaces);
401 const char *ifname = NULL;
403 if ((c = tb[IFACE_ATTR_IFNAME]))
404 ifname = blobmsg_get_string(c);
405 else if ((c = tb[IFACE_ATTR_NETWORKID]))
406 ifname = blobmsg_get_string(c);
410 if (overwrite || !iface->ifname[0])
411 ifname = ubus_get_ifname(name);
414 if (!iface->ifname[0] && !ifname)
418 strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
420 if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
425 if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
426 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
428 if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
429 iface->ignore = blobmsg_get_bool(c);
431 if ((c = tb[IFACE_ATTR_LEASETIME])) {
432 double time = parse_leasetime(c);
436 iface->dhcpv4_leasetime = time;
439 if ((c = tb[IFACE_ATTR_START])) {
440 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
442 if (config.main_dhcpv4 && config.legacy)
443 iface->dhcpv4 = RELAYD_SERVER;
446 if ((c = tb[IFACE_ATTR_LIMIT]))
447 iface->dhcpv4_end.s_addr = htonl(
448 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
450 if ((c = tb[IFACE_ATTR_MASTER]))
451 iface->master = blobmsg_get_bool(c);
453 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
454 struct blob_attr *cur;
457 blobmsg_for_each_attr(cur, c, rem) {
458 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
461 iface->upstream = realloc(iface->upstream,
462 iface->upstream_len + blobmsg_data_len(cur));
463 if (!iface->upstream)
466 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
467 iface->upstream_len += blobmsg_data_len(cur);
472 if ((c = tb[IFACE_ATTR_RA])) {
473 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
479 if ((c = tb[IFACE_ATTR_DHCPV4])) {
480 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
481 if (config.main_dhcpv4)
482 iface->dhcpv4 = mode;
488 if ((c = tb[IFACE_ATTR_DHCPV6])) {
489 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
490 iface->dhcpv6 = mode;
495 if ((c = tb[IFACE_ATTR_NDP])) {
496 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
502 if ((c = tb[IFACE_ATTR_ROUTER])) {
503 struct blob_attr *cur;
506 blobmsg_for_each_attr(cur, c, rem) {
507 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
510 struct in_addr addr4;
511 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
512 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
513 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
514 if (!iface->dhcpv4_router)
517 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
523 if ((c = tb[IFACE_ATTR_DNS])) {
524 struct blob_attr *cur;
527 iface->always_rewrite_dns = true;
528 blobmsg_for_each_attr(cur, c, rem) {
529 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
532 struct in_addr addr4;
533 struct in6_addr addr6;
534 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
535 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
536 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
537 if (!iface->dhcpv4_dns)
540 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
541 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
542 iface->dns = realloc(iface->dns,
543 (++iface->dns_cnt) * sizeof(*iface->dns));
547 iface->dns[iface->dns_cnt - 1] = addr6;
553 if ((c = tb[IFACE_ATTR_DOMAIN])) {
554 struct blob_attr *cur;
557 blobmsg_for_each_attr(cur, c, rem) {
558 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
562 char *domain = blobmsg_get_string(cur);
563 size_t domainlen = strlen(domain);
564 if (domainlen > 0 && domain[domainlen - 1] == '.')
565 domain[domainlen - 1] = 0;
567 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
571 iface->search = realloc(iface->search, iface->search_len + len);
575 memcpy(&iface->search[iface->search_len], buf, len);
576 iface->search_len += len;
580 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
581 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
582 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
585 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
586 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
587 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
588 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
591 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
592 iface->default_router = blobmsg_get_u32(c);
594 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
595 iface->managed = blobmsg_get_u32(c);
597 if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
598 iface->ra_not_onlink = blobmsg_get_bool(c);
600 if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
601 iface->ra_advrouter = blobmsg_get_bool(c);
603 if ((c = tb[IFACE_ATTR_RA_MININTERVAL]))
604 iface->ra_mininterval = blobmsg_get_u32(c);
606 if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
607 iface->ra_maxinterval = blobmsg_get_u32(c);
609 if ((c = tb[IFACE_ATTR_RA_LIFETIME]))
610 iface->ra_lifetime = blobmsg_get_u32(c);
612 if ((c = tb[IFACE_ATTR_RA_USELEASETIME]))
613 iface->ra_useleasetime = blobmsg_get_bool(c);
615 if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
616 const char *prio = blobmsg_get_string(c);
618 if (!strcmp(prio, "high"))
619 iface->route_preference = 1;
620 else if (!strcmp(prio, "low"))
621 iface->route_preference = -1;
622 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
623 iface->route_preference = 0;
628 if ((c = tb[IFACE_ATTR_PD_MANAGER]))
629 strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
630 sizeof(iface->dhcpv6_pd_manager) - 1);
632 if ((c = tb[IFACE_ATTR_PD_CER]) &&
633 inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
636 if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
637 iface->learn_routes = blobmsg_get_bool(c);
639 if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
640 iface->external = blobmsg_get_bool(c);
645 close_interface(iface);
649 static int set_interface(struct uci_section *s)
651 blob_buf_init(&b, 0);
652 uci_to_blob(&b, s, &interface_attr_list);
654 return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
657 void odhcpd_reload(void)
659 struct uci_context *uci = uci_alloc_context();
661 while (!list_empty(&leases))
662 free_lease(list_first_entry(&leases, struct lease, head));
664 struct interface *master = NULL, *i, *n;
669 list_for_each_entry(i, &interfaces, head)
672 struct uci_package *dhcp = NULL;
673 if (!uci_load(uci, "dhcp", &dhcp)) {
674 struct uci_element *e;
675 uci_foreach_element(&dhcp->sections, e) {
676 struct uci_section *s = uci_to_section(e);
677 if (!strcmp(s->type, "host"))
679 else if (!strcmp(s->type, "odhcpd"))
683 uci_foreach_element(&dhcp->sections, e) {
684 struct uci_section *s = uci_to_section(e);
685 if (!strcmp(s->type, "dhcp"))
690 if (config.dhcp_statefile) {
691 char *path = strdup(config.dhcp_statefile);
693 mkdir_p(dirname(path), 0755);
698 ubus_apply_network();
701 bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
704 list_for_each_entry(i, &interfaces, head) {
708 if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
709 any_dhcpv6_slave = true;
711 if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
714 if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
715 any_ndp_slave = true;
718 /* Evaluate hybrid mode for master */
719 list_for_each_entry(i, &interfaces, head) {
723 enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
725 if (!ubus_has_prefix(i->name, i->ifname))
726 hybrid_mode = RELAYD_RELAY;
729 if (i->dhcpv6 == RELAYD_HYBRID)
730 i->dhcpv6 = hybrid_mode;
732 if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
733 i->dhcpv6 = RELAYD_DISABLED;
735 if (i->ra == RELAYD_HYBRID)
738 if (i->ra == RELAYD_RELAY && !any_ra_slave)
739 i->ra = RELAYD_DISABLED;
741 if (i->ndp == RELAYD_HYBRID)
742 i->ndp = hybrid_mode;
744 if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
745 i->ndp = RELAYD_DISABLED;
747 if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
752 list_for_each_entry_safe(i, n, &interfaces, head) {
754 /* Resolve hybrid mode */
755 if (i->dhcpv6 == RELAYD_HYBRID)
756 i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
757 RELAYD_RELAY : RELAYD_SERVER;
759 if (i->ra == RELAYD_HYBRID)
760 i->ra = (master && master->ra == RELAYD_RELAY) ?
761 RELAYD_RELAY : RELAYD_SERVER;
763 if (i->ndp == RELAYD_HYBRID)
764 i->ndp = (master && master->ndp == RELAYD_RELAY) ?
765 RELAYD_RELAY : RELAYD_DISABLED;
767 setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
768 setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
769 setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
770 setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
775 ndp_handle_addr6_dump();
776 uci_unload(uci, dhcp);
777 uci_free_context(uci);
780 static void handle_signal(int signal)
784 if (signal == SIGHUP) {
785 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
790 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
793 if (read(u->fd, b, sizeof(b)) < 0) {}
798 static struct uloop_fd reload_fd = { .cb = reload_cb };
800 void odhcpd_run(void)
802 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
804 reload_fd.fd = reload_pipe[0];
805 uloop_fd_add(&reload_fd, ULOOP_READ);
807 signal(SIGTERM, handle_signal);
808 signal(SIGINT, handle_signal);
809 signal(SIGHUP, handle_signal);
819 while (!list_empty(&interfaces))
820 close_interface(list_first_entry(&interfaces, struct interface, head));