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_DHCPV6_ASSIGNALL,
45 IFACE_ATTR_RA_DEFAULT,
46 IFACE_ATTR_RA_MANAGEMENT,
47 IFACE_ATTR_RA_OFFLINK,
48 IFACE_ATTR_RA_PREFERENCE,
49 IFACE_ATTR_RA_ADVROUTER,
50 IFACE_ATTR_RA_MININTERVAL,
51 IFACE_ATTR_RA_MAXINTERVAL,
52 IFACE_ATTR_RA_LIFETIME,
53 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_DHCPV6_ASSIGNALL] = { .name ="dhcpv6_assignall", .type = BLOBMSG_TYPE_BOOL },
82 [IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
83 [IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
84 [IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
85 [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
86 [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
87 [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
88 [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL },
89 [IFACE_ATTR_RA_MININTERVAL] = { .name = "ra_mininterval", .type = BLOBMSG_TYPE_INT32 },
90 [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
91 [IFACE_ATTR_RA_LIFETIME] = { .name = "ra_lifetime", .type = BLOBMSG_TYPE_INT32 },
92 [IFACE_ATTR_RA_USELEASETIME] = { .name = "ra_useleasetime", .type = BLOBMSG_TYPE_BOOL },
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->dhcpv6_assignall = true;
204 iface->ra_maxinterval = 600;
205 iface->ra_mininterval = iface->ra_maxinterval/3;
206 iface->ra_lifetime = -1;
209 static void clean_interface(struct interface *iface)
213 free(iface->upstream);
214 free(iface->dhcpv4_router);
215 free(iface->dhcpv4_dns);
216 free(iface->dhcpv6_raw);
217 free(iface->filter_class);
218 memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
219 set_interface_defaults(iface);
222 static void close_interface(struct interface *iface)
224 if (iface->head.next)
225 list_del(&iface->head);
227 setup_router_interface(iface, false);
228 setup_dhcpv6_interface(iface, false);
229 setup_ndp_interface(iface, false);
230 #ifdef DHCPV4_SUPPORT
231 setup_dhcpv4_interface(iface, false);
234 clean_interface(iface);
238 static int parse_mode(const char *mode)
240 if (!strcmp(mode, "disabled"))
241 return RELAYD_DISABLED;
242 else if (!strcmp(mode, "server"))
243 return RELAYD_SERVER;
244 else if (!strcmp(mode, "relay"))
246 else if (!strcmp(mode, "hybrid"))
247 return RELAYD_HYBRID;
252 static void set_config(struct uci_section *s)
254 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
256 blob_buf_init(&b, 0);
257 uci_to_blob(&b, s, &odhcpd_attr_list);
258 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
260 if ((c = tb[ODHCPD_ATTR_LEGACY]))
261 config.legacy = blobmsg_get_bool(c);
263 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
264 config.main_dhcpv4 = blobmsg_get_bool(c);
266 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
267 free(config.dhcp_statefile);
268 config.dhcp_statefile = strdup(blobmsg_get_string(c));
271 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
272 free(config.dhcp_cb);
273 config.dhcp_cb = strdup(blobmsg_get_string(c));
276 if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) {
277 int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK);
279 if (config.log_level != log_level) {
280 config.log_level = log_level;
281 setlogmask(LOG_UPTO(config.log_level));
286 static double parse_leasetime(struct blob_attr *c) {
287 char *val = blobmsg_get_string(c), *endptr = NULL;
288 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
290 if (time && endptr && endptr[0]) {
291 if (endptr[0] == 's')
293 else if (endptr[0] == 'm')
295 else if (endptr[0] == 'h')
297 else if (endptr[0] == 'd')
299 else if (endptr[0] == 'w')
300 time *= 7 * 24 * 3600;
314 static int set_lease(struct uci_section *s)
316 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
318 blob_buf_init(&b, 0);
319 uci_to_blob(&b, s, &lease_attr_list);
320 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
323 if ((c = tb[LEASE_ATTR_NAME]))
324 hostlen = blobmsg_data_len(c);
326 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
331 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
333 if ((c = tb[LEASE_ATTR_IP]))
334 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
337 if ((c = tb[LEASE_ATTR_MAC]))
338 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
341 if ((c = tb[LEASE_ATTR_DUID])) {
342 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
343 lease->duid = malloc(duidlen);
347 ssize_t len = odhcpd_unhexlify(lease->duid,
348 duidlen, blobmsg_get_string(c));
353 lease->duid_len = len;
356 if ((c = tb[LEASE_ATTR_HOSTID])) {
358 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
363 if ((c = tb[LEASE_ATTR_LEASETIME])) {
364 double time = parse_leasetime(c);
368 lease->dhcpv4_leasetime = time;
371 list_add(&lease->head, &leases);
381 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
383 struct blob_attr *tb[IFACE_ATTR_MAX], *c;
384 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, data, len);
386 if (tb[IFACE_ATTR_INTERFACE])
387 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
392 struct interface *iface = get_interface(name);
394 iface = calloc(1, sizeof(*iface));
398 strncpy(iface->name, name, sizeof(iface->name) - 1);
400 set_interface_defaults(iface);
402 list_add(&iface->head, &interfaces);
406 const char *ifname = NULL;
408 if ((c = tb[IFACE_ATTR_IFNAME]))
409 ifname = blobmsg_get_string(c);
410 else if ((c = tb[IFACE_ATTR_NETWORKID]))
411 ifname = blobmsg_get_string(c);
415 if (overwrite || !iface->ifname[0])
416 ifname = ubus_get_ifname(name);
419 if (!iface->ifname[0] && !ifname)
423 strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
425 if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
430 if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
431 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
433 if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
434 iface->ignore = blobmsg_get_bool(c);
436 if ((c = tb[IFACE_ATTR_LEASETIME])) {
437 double time = parse_leasetime(c);
441 iface->dhcpv4_leasetime = time;
444 if ((c = tb[IFACE_ATTR_START])) {
445 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
447 if (config.main_dhcpv4 && config.legacy)
448 iface->dhcpv4 = RELAYD_SERVER;
451 if ((c = tb[IFACE_ATTR_LIMIT]))
452 iface->dhcpv4_end.s_addr = htonl(
453 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
455 if ((c = tb[IFACE_ATTR_MASTER]))
456 iface->master = blobmsg_get_bool(c);
458 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
459 struct blob_attr *cur;
462 blobmsg_for_each_attr(cur, c, rem) {
463 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
466 iface->upstream = realloc(iface->upstream,
467 iface->upstream_len + blobmsg_data_len(cur));
468 if (!iface->upstream)
471 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
472 iface->upstream_len += blobmsg_data_len(cur);
477 if ((c = tb[IFACE_ATTR_RA])) {
478 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
484 if ((c = tb[IFACE_ATTR_DHCPV4])) {
485 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
486 if (config.main_dhcpv4)
487 iface->dhcpv4 = mode;
493 if ((c = tb[IFACE_ATTR_DHCPV6])) {
494 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
495 iface->dhcpv6 = mode;
500 if ((c = tb[IFACE_ATTR_NDP])) {
501 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
507 if ((c = tb[IFACE_ATTR_ROUTER])) {
508 struct blob_attr *cur;
511 blobmsg_for_each_attr(cur, c, rem) {
512 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
515 struct in_addr addr4;
516 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
517 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
518 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
519 if (!iface->dhcpv4_router)
522 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
528 if ((c = tb[IFACE_ATTR_DNS])) {
529 struct blob_attr *cur;
532 iface->always_rewrite_dns = true;
533 blobmsg_for_each_attr(cur, c, rem) {
534 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
537 struct in_addr addr4;
538 struct in6_addr addr6;
539 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
540 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
541 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
542 if (!iface->dhcpv4_dns)
545 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
546 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
547 iface->dns = realloc(iface->dns,
548 (++iface->dns_cnt) * sizeof(*iface->dns));
552 iface->dns[iface->dns_cnt - 1] = addr6;
558 if ((c = tb[IFACE_ATTR_DOMAIN])) {
559 struct blob_attr *cur;
562 blobmsg_for_each_attr(cur, c, rem) {
563 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
567 char *domain = blobmsg_get_string(cur);
568 size_t domainlen = strlen(domain);
569 if (domainlen > 0 && domain[domainlen - 1] == '.')
570 domain[domainlen - 1] = 0;
572 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
576 iface->search = realloc(iface->search, iface->search_len + len);
580 memcpy(&iface->search[iface->search_len], buf, len);
581 iface->search_len += len;
585 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
586 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
587 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
590 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
591 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
592 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
593 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
596 if ((c = tb[IFACE_ATTR_DHCPV6_ASSIGNALL]))
597 iface->dhcpv6_assignall = blobmsg_get_bool(c);
599 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
600 iface->default_router = blobmsg_get_u32(c);
602 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
603 iface->managed = blobmsg_get_u32(c);
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 #ifdef DHCPV4_SUPPORT
779 setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
785 ndp_handle_addr6_dump();
786 uci_unload(uci, dhcp);
787 uci_free_context(uci);
790 static void handle_signal(int signal)
794 if (signal == SIGHUP) {
795 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
800 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
803 if (read(u->fd, b, sizeof(b)) < 0) {}
808 static struct uloop_fd reload_fd = { .cb = reload_cb };
810 void odhcpd_run(void)
812 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
814 reload_fd.fd = reload_pipe[0];
815 uloop_fd_add(&reload_fd, ULOOP_READ);
817 signal(SIGTERM, handle_signal);
818 signal(SIGINT, handle_signal);
819 signal(SIGHUP, handle_signal);
829 while (!list_empty(&interfaces))
830 close_interface(list_first_entry(&interfaces, struct interface, head));