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,
54 IFACE_ATTR_PD_MANAGER,
56 IFACE_ATTR_NDPROXY_ROUTING,
57 IFACE_ATTR_NDPROXY_SLAVE,
61 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
62 [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
63 [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
64 [IFACE_ATTR_NETWORKID] = { .name = "networkid", .type = BLOBMSG_TYPE_STRING },
65 [IFACE_ATTR_DYNAMICDHCP] = { .name = "dynamicdhcp", .type = BLOBMSG_TYPE_BOOL },
66 [IFACE_ATTR_IGNORE] = { .name = "ignore", .type = BLOBMSG_TYPE_BOOL },
67 [IFACE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
68 [IFACE_ATTR_START] = { .name = "start", .type = BLOBMSG_TYPE_INT32 },
69 [IFACE_ATTR_LIMIT] = { .name = "limit", .type = BLOBMSG_TYPE_INT32 },
70 [IFACE_ATTR_MASTER] = { .name = "master", .type = BLOBMSG_TYPE_BOOL },
71 [IFACE_ATTR_UPSTREAM] = { .name = "upstream", .type = BLOBMSG_TYPE_ARRAY },
72 [IFACE_ATTR_RA] = { .name = "ra", .type = BLOBMSG_TYPE_STRING },
73 [IFACE_ATTR_DHCPV4] = { .name = "dhcpv4", .type = BLOBMSG_TYPE_STRING },
74 [IFACE_ATTR_DHCPV6] = { .name = "dhcpv6", .type = BLOBMSG_TYPE_STRING },
75 [IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
76 [IFACE_ATTR_ROUTER] = { .name = "router", .type = BLOBMSG_TYPE_ARRAY },
77 [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
78 [IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
79 [IFACE_ATTR_FILTER_CLASS] = { .name = "filter_class", .type = BLOBMSG_TYPE_STRING },
80 [IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
81 [IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
82 [IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
83 [IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
84 [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
85 [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
86 [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
87 [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL },
88 [IFACE_ATTR_RA_MININTERVAL] = { .name = "ra_mininterval", .type = BLOBMSG_TYPE_INT32 },
89 [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
90 [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
91 [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL },
92 [IFACE_ATTR_RA_MTU] = { .name = "ra_mtu", .type = BLOBMSG_TYPE_INT32 },
93 [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
94 [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
97 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
98 [IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING },
99 [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
100 [IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING },
103 const struct uci_blob_param_list interface_attr_list = {
104 .n_params = IFACE_ATTR_MAX,
105 .params = iface_attrs,
106 .info = iface_attr_info,
114 LEASE_ATTR_LEASETIME,
119 static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
120 [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
121 [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
122 [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
123 [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
124 [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
125 [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
128 const struct uci_blob_param_list lease_attr_list = {
129 .n_params = LEASE_ATTR_MAX,
130 .params = lease_attrs,
135 ODHCPD_ATTR_MAINDHCP,
136 ODHCPD_ATTR_LEASEFILE,
137 ODHCPD_ATTR_LEASETRIGGER,
138 ODHCPD_ATTR_LOGLEVEL,
142 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
143 [ODHCPD_ATTR_LEGACY] = { .name = "legacy", .type = BLOBMSG_TYPE_BOOL },
144 [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
145 [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
146 [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
147 [ODHCPD_ATTR_LOGLEVEL] = { .name = "loglevel", .type = BLOBMSG_TYPE_INT32 },
150 const struct uci_blob_param_list odhcpd_attr_list = {
151 .n_params = ODHCPD_ATTR_MAX,
152 .params = odhcpd_attrs,
155 static int mkdir_p(char *dir, mode_t mask)
157 char *l = strrchr(dir, '/');
165 if (mkdir_p(dir, mask))
170 ret = mkdir(dir, mask);
171 if (ret && errno == EEXIST)
175 syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno));
180 static void free_lease(struct lease *l)
189 static struct interface* get_interface(const char *name)
192 list_for_each_entry(c, &interfaces, head)
193 if (!strcmp(c->name, name))
198 static void set_interface_defaults(struct interface *iface)
201 iface->learn_routes = 1;
202 iface->dhcpv4_leasetime = 43200;
203 iface->ra_maxinterval = 600;
204 iface->ra_mininterval = iface->ra_maxinterval/3;
205 iface->ra_lifetime = -1;
208 static void clean_interface(struct interface *iface)
212 free(iface->upstream);
213 free(iface->dhcpv4_router);
214 free(iface->dhcpv4_dns);
215 free(iface->dhcpv6_raw);
216 free(iface->filter_class);
217 memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
218 set_interface_defaults(iface);
221 static void close_interface(struct interface *iface)
223 if (iface->head.next)
224 list_del(&iface->head);
226 setup_router_interface(iface, false);
227 setup_dhcpv6_interface(iface, false);
228 setup_ndp_interface(iface, false);
229 setup_dhcpv4_interface(iface, false);
231 clean_interface(iface);
235 static int parse_mode(const char *mode)
237 if (!strcmp(mode, "disabled"))
238 return RELAYD_DISABLED;
239 else if (!strcmp(mode, "server"))
240 return RELAYD_SERVER;
241 else if (!strcmp(mode, "relay"))
243 else if (!strcmp(mode, "hybrid"))
244 return RELAYD_HYBRID;
249 static void set_config(struct uci_section *s)
251 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
253 blob_buf_init(&b, 0);
254 uci_to_blob(&b, s, &odhcpd_attr_list);
255 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
257 if ((c = tb[ODHCPD_ATTR_LEGACY]))
258 config.legacy = blobmsg_get_bool(c);
260 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
261 config.main_dhcpv4 = blobmsg_get_bool(c);
263 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
264 free(config.dhcp_statefile);
265 config.dhcp_statefile = strdup(blobmsg_get_string(c));
268 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
269 free(config.dhcp_cb);
270 config.dhcp_cb = strdup(blobmsg_get_string(c));
273 if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) {
274 int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK);
276 if (config.log_level != log_level) {
277 config.log_level = log_level;
278 setlogmask(LOG_UPTO(config.log_level));
283 static double parse_leasetime(struct blob_attr *c) {
284 char *val = blobmsg_get_string(c), *endptr = NULL;
285 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
287 if (time && endptr && endptr[0]) {
288 if (endptr[0] == 's')
290 else if (endptr[0] == 'm')
292 else if (endptr[0] == 'h')
294 else if (endptr[0] == 'd')
296 else if (endptr[0] == 'w')
297 time *= 7 * 24 * 3600;
311 static int set_lease(struct uci_section *s)
313 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
315 blob_buf_init(&b, 0);
316 uci_to_blob(&b, s, &lease_attr_list);
317 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
320 if ((c = tb[LEASE_ATTR_NAME]))
321 hostlen = blobmsg_data_len(c);
323 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
328 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
330 if ((c = tb[LEASE_ATTR_IP]))
331 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
334 if ((c = tb[LEASE_ATTR_MAC]))
335 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
338 if ((c = tb[LEASE_ATTR_DUID])) {
339 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
340 lease->duid = malloc(duidlen);
344 ssize_t len = odhcpd_unhexlify(lease->duid,
345 duidlen, blobmsg_get_string(c));
350 lease->duid_len = len;
353 if ((c = tb[LEASE_ATTR_HOSTID])) {
355 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
360 if ((c = tb[LEASE_ATTR_LEASETIME])) {
361 double time = parse_leasetime(c);
365 lease->dhcpv4_leasetime = time;
368 list_add(&lease->head, &leases);
378 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
380 struct blob_attr *tb[IFACE_ATTR_MAX], *c;
381 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, data, len);
383 if (tb[IFACE_ATTR_INTERFACE])
384 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
389 struct interface *iface = get_interface(name);
391 iface = calloc(1, sizeof(*iface));
395 strncpy(iface->name, name, sizeof(iface->name) - 1);
397 set_interface_defaults(iface);
399 list_add(&iface->head, &interfaces);
403 const char *ifname = NULL;
405 if ((c = tb[IFACE_ATTR_IFNAME]))
406 ifname = blobmsg_get_string(c);
407 else if ((c = tb[IFACE_ATTR_NETWORKID]))
408 ifname = blobmsg_get_string(c);
412 if (overwrite || !iface->ifname[0])
413 ifname = ubus_get_ifname(name);
416 if (!iface->ifname[0] && !ifname)
420 strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
422 if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
427 if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
428 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
430 if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
431 iface->ignore = blobmsg_get_bool(c);
433 if ((c = tb[IFACE_ATTR_LEASETIME])) {
434 double time = parse_leasetime(c);
438 iface->dhcpv4_leasetime = time;
441 if ((c = tb[IFACE_ATTR_START])) {
442 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
444 if (config.main_dhcpv4 && config.legacy)
445 iface->dhcpv4 = RELAYD_SERVER;
448 if ((c = tb[IFACE_ATTR_LIMIT]))
449 iface->dhcpv4_end.s_addr = htonl(
450 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
452 if ((c = tb[IFACE_ATTR_MASTER]))
453 iface->master = blobmsg_get_bool(c);
455 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
456 struct blob_attr *cur;
459 blobmsg_for_each_attr(cur, c, rem) {
460 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
463 iface->upstream = realloc(iface->upstream,
464 iface->upstream_len + blobmsg_data_len(cur));
465 if (!iface->upstream)
468 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
469 iface->upstream_len += blobmsg_data_len(cur);
474 if ((c = tb[IFACE_ATTR_RA])) {
475 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
481 if ((c = tb[IFACE_ATTR_DHCPV4])) {
482 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
483 if (config.main_dhcpv4)
484 iface->dhcpv4 = mode;
490 if ((c = tb[IFACE_ATTR_DHCPV6])) {
491 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
492 iface->dhcpv6 = mode;
497 if ((c = tb[IFACE_ATTR_NDP])) {
498 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
504 if ((c = tb[IFACE_ATTR_ROUTER])) {
505 struct blob_attr *cur;
508 blobmsg_for_each_attr(cur, c, rem) {
509 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
512 struct in_addr addr4;
513 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
514 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
515 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
516 if (!iface->dhcpv4_router)
519 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
525 if ((c = tb[IFACE_ATTR_DNS])) {
526 struct blob_attr *cur;
529 iface->always_rewrite_dns = true;
530 blobmsg_for_each_attr(cur, c, rem) {
531 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
534 struct in_addr addr4;
535 struct in6_addr addr6;
536 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
537 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
538 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
539 if (!iface->dhcpv4_dns)
542 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
543 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
544 iface->dns = realloc(iface->dns,
545 (++iface->dns_cnt) * sizeof(*iface->dns));
549 iface->dns[iface->dns_cnt - 1] = addr6;
555 if ((c = tb[IFACE_ATTR_DOMAIN])) {
556 struct blob_attr *cur;
559 blobmsg_for_each_attr(cur, c, rem) {
560 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
564 char *domain = blobmsg_get_string(cur);
565 size_t domainlen = strlen(domain);
566 if (domainlen > 0 && domain[domainlen - 1] == '.')
567 domain[domainlen - 1] = 0;
569 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
573 iface->search = realloc(iface->search, iface->search_len + len);
577 memcpy(&iface->search[iface->search_len], buf, len);
578 iface->search_len += len;
582 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
583 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
584 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
587 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
588 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
589 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
590 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
593 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
594 iface->default_router = blobmsg_get_u32(c);
596 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
597 iface->managed = blobmsg_get_u32(c);
599 if ((c = tb[IFACE_ATTR_RA_MTU])) {
600 iface->ra_mtu = blobmsg_get_u32(c);
601 if (iface->ra_mtu < 1280)
605 if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
606 iface->ra_not_onlink = blobmsg_get_bool(c);
608 if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
609 iface->ra_advrouter = blobmsg_get_bool(c);
611 if ((c = tb[IFACE_ATTR_RA_MININTERVAL]))
612 iface->ra_mininterval = blobmsg_get_u32(c);
614 if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
615 iface->ra_maxinterval = blobmsg_get_u32(c);
617 if ((c = tb[IFACE_ATTR_RA_LIFETIME]))
618 iface->ra_lifetime = blobmsg_get_u32(c);
620 if ((c = tb[IFACE_ATTR_RA_USELEASETIME]))
621 iface->ra_useleasetime = blobmsg_get_bool(c);
623 if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
624 const char *prio = blobmsg_get_string(c);
626 if (!strcmp(prio, "high"))
627 iface->route_preference = 1;
628 else if (!strcmp(prio, "low"))
629 iface->route_preference = -1;
630 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
631 iface->route_preference = 0;
636 if ((c = tb[IFACE_ATTR_PD_MANAGER]))
637 strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
638 sizeof(iface->dhcpv6_pd_manager) - 1);
640 if ((c = tb[IFACE_ATTR_PD_CER]) &&
641 inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
644 if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
645 iface->learn_routes = blobmsg_get_bool(c);
647 if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
648 iface->external = blobmsg_get_bool(c);
653 close_interface(iface);
657 static int set_interface(struct uci_section *s)
659 blob_buf_init(&b, 0);
660 uci_to_blob(&b, s, &interface_attr_list);
662 return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
665 void odhcpd_reload(void)
667 struct uci_context *uci = uci_alloc_context();
669 while (!list_empty(&leases))
670 free_lease(list_first_entry(&leases, struct lease, head));
672 struct interface *master = NULL, *i, *n;
677 list_for_each_entry(i, &interfaces, head)
680 struct uci_package *dhcp = NULL;
681 if (!uci_load(uci, "dhcp", &dhcp)) {
682 struct uci_element *e;
683 uci_foreach_element(&dhcp->sections, e) {
684 struct uci_section *s = uci_to_section(e);
685 if (!strcmp(s->type, "host"))
687 else if (!strcmp(s->type, "odhcpd"))
691 uci_foreach_element(&dhcp->sections, e) {
692 struct uci_section *s = uci_to_section(e);
693 if (!strcmp(s->type, "dhcp"))
698 if (config.dhcp_statefile) {
699 char *path = strdup(config.dhcp_statefile);
701 mkdir_p(dirname(path), 0755);
706 ubus_apply_network();
709 bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
712 list_for_each_entry(i, &interfaces, head) {
716 if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
717 any_dhcpv6_slave = true;
719 if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
722 if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
723 any_ndp_slave = true;
726 /* Evaluate hybrid mode for master */
727 list_for_each_entry(i, &interfaces, head) {
731 enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
733 if (!ubus_has_prefix(i->name, i->ifname))
734 hybrid_mode = RELAYD_RELAY;
737 if (i->dhcpv6 == RELAYD_HYBRID)
738 i->dhcpv6 = hybrid_mode;
740 if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
741 i->dhcpv6 = RELAYD_DISABLED;
743 if (i->ra == RELAYD_HYBRID)
746 if (i->ra == RELAYD_RELAY && !any_ra_slave)
747 i->ra = RELAYD_DISABLED;
749 if (i->ndp == RELAYD_HYBRID)
750 i->ndp = hybrid_mode;
752 if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
753 i->ndp = RELAYD_DISABLED;
755 if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
760 list_for_each_entry_safe(i, n, &interfaces, head) {
762 /* Resolve hybrid mode */
763 if (i->dhcpv6 == RELAYD_HYBRID)
764 i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
765 RELAYD_RELAY : RELAYD_SERVER;
767 if (i->ra == RELAYD_HYBRID)
768 i->ra = (master && master->ra == RELAYD_RELAY) ?
769 RELAYD_RELAY : RELAYD_SERVER;
771 if (i->ndp == RELAYD_HYBRID)
772 i->ndp = (master && master->ndp == RELAYD_RELAY) ?
773 RELAYD_RELAY : RELAYD_DISABLED;
775 setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
776 setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
777 setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
778 setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
783 ndp_handle_addr6_dump();
784 uci_unload(uci, dhcp);
785 uci_free_context(uci);
788 static void handle_signal(int signal)
792 if (signal == SIGHUP) {
793 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
798 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
801 if (read(u->fd, b, sizeof(b)) < 0) {}
806 static struct uloop_fd reload_fd = { .cb = reload_cb };
808 void odhcpd_run(void)
810 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
812 reload_fd.fd = reload_pipe[0];
813 uloop_fd_add(&reload_fd, ULOOP_READ);
815 signal(SIGTERM, handle_signal);
816 signal(SIGINT, handle_signal);
817 signal(SIGHUP, handle_signal);
827 while (!list_empty(&interfaces))
828 close_interface(list_first_entry(&interfaces, struct interface, head));