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 setup_dhcpv4_interface(iface, false);
232 clean_interface(iface);
236 static int parse_mode(const char *mode)
238 if (!strcmp(mode, "disabled"))
239 return RELAYD_DISABLED;
240 else if (!strcmp(mode, "server"))
241 return RELAYD_SERVER;
242 else if (!strcmp(mode, "relay"))
244 else if (!strcmp(mode, "hybrid"))
245 return RELAYD_HYBRID;
250 static void set_config(struct uci_section *s)
252 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
254 blob_buf_init(&b, 0);
255 uci_to_blob(&b, s, &odhcpd_attr_list);
256 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
258 if ((c = tb[ODHCPD_ATTR_LEGACY]))
259 config.legacy = blobmsg_get_bool(c);
261 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
262 config.main_dhcpv4 = blobmsg_get_bool(c);
264 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
265 free(config.dhcp_statefile);
266 config.dhcp_statefile = strdup(blobmsg_get_string(c));
269 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
270 free(config.dhcp_cb);
271 config.dhcp_cb = strdup(blobmsg_get_string(c));
274 if ((c = tb[ODHCPD_ATTR_LOGLEVEL])) {
275 int log_level = (blobmsg_get_u32(c) & LOG_PRIMASK);
277 if (config.log_level != log_level) {
278 config.log_level = log_level;
279 setlogmask(LOG_UPTO(config.log_level));
284 static double parse_leasetime(struct blob_attr *c) {
285 char *val = blobmsg_get_string(c), *endptr = NULL;
286 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
288 if (time && endptr && endptr[0]) {
289 if (endptr[0] == 's')
291 else if (endptr[0] == 'm')
293 else if (endptr[0] == 'h')
295 else if (endptr[0] == 'd')
297 else if (endptr[0] == 'w')
298 time *= 7 * 24 * 3600;
312 static int set_lease(struct uci_section *s)
314 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
316 blob_buf_init(&b, 0);
317 uci_to_blob(&b, s, &lease_attr_list);
318 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
321 if ((c = tb[LEASE_ATTR_NAME]))
322 hostlen = blobmsg_data_len(c);
324 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
329 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
331 if ((c = tb[LEASE_ATTR_IP]))
332 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
335 if ((c = tb[LEASE_ATTR_MAC]))
336 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
339 if ((c = tb[LEASE_ATTR_DUID])) {
340 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
341 lease->duid = malloc(duidlen);
345 ssize_t len = odhcpd_unhexlify(lease->duid,
346 duidlen, blobmsg_get_string(c));
351 lease->duid_len = len;
354 if ((c = tb[LEASE_ATTR_HOSTID])) {
356 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
361 if ((c = tb[LEASE_ATTR_LEASETIME])) {
362 double time = parse_leasetime(c);
366 lease->dhcpv4_leasetime = time;
369 list_add(&lease->head, &leases);
379 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
381 struct blob_attr *tb[IFACE_ATTR_MAX], *c;
382 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, data, len);
384 if (tb[IFACE_ATTR_INTERFACE])
385 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
390 struct interface *iface = get_interface(name);
392 iface = calloc(1, sizeof(*iface));
396 strncpy(iface->name, name, sizeof(iface->name) - 1);
398 set_interface_defaults(iface);
400 list_add(&iface->head, &interfaces);
404 const char *ifname = NULL;
406 if ((c = tb[IFACE_ATTR_IFNAME]))
407 ifname = blobmsg_get_string(c);
408 else if ((c = tb[IFACE_ATTR_NETWORKID]))
409 ifname = blobmsg_get_string(c);
413 if (overwrite || !iface->ifname[0])
414 ifname = ubus_get_ifname(name);
417 if (!iface->ifname[0] && !ifname)
421 strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
423 if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
428 if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
429 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
431 if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
432 iface->ignore = blobmsg_get_bool(c);
434 if ((c = tb[IFACE_ATTR_LEASETIME])) {
435 double time = parse_leasetime(c);
439 iface->dhcpv4_leasetime = time;
442 if ((c = tb[IFACE_ATTR_START])) {
443 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
445 if (config.main_dhcpv4 && config.legacy)
446 iface->dhcpv4 = RELAYD_SERVER;
449 if ((c = tb[IFACE_ATTR_LIMIT]))
450 iface->dhcpv4_end.s_addr = htonl(
451 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
453 if ((c = tb[IFACE_ATTR_MASTER]))
454 iface->master = blobmsg_get_bool(c);
456 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
457 struct blob_attr *cur;
460 blobmsg_for_each_attr(cur, c, rem) {
461 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
464 iface->upstream = realloc(iface->upstream,
465 iface->upstream_len + blobmsg_data_len(cur));
466 if (!iface->upstream)
469 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
470 iface->upstream_len += blobmsg_data_len(cur);
475 if ((c = tb[IFACE_ATTR_RA])) {
476 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
482 if ((c = tb[IFACE_ATTR_DHCPV4])) {
483 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0) {
484 if (config.main_dhcpv4)
485 iface->dhcpv4 = mode;
491 if ((c = tb[IFACE_ATTR_DHCPV6])) {
492 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
493 iface->dhcpv6 = mode;
498 if ((c = tb[IFACE_ATTR_NDP])) {
499 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
505 if ((c = tb[IFACE_ATTR_ROUTER])) {
506 struct blob_attr *cur;
509 blobmsg_for_each_attr(cur, c, rem) {
510 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
513 struct in_addr addr4;
514 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
515 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
516 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
517 if (!iface->dhcpv4_router)
520 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
526 if ((c = tb[IFACE_ATTR_DNS])) {
527 struct blob_attr *cur;
530 iface->always_rewrite_dns = true;
531 blobmsg_for_each_attr(cur, c, rem) {
532 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
535 struct in_addr addr4;
536 struct in6_addr addr6;
537 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
538 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
539 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
540 if (!iface->dhcpv4_dns)
543 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
544 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
545 iface->dns = realloc(iface->dns,
546 (++iface->dns_cnt) * sizeof(*iface->dns));
550 iface->dns[iface->dns_cnt - 1] = addr6;
556 if ((c = tb[IFACE_ATTR_DOMAIN])) {
557 struct blob_attr *cur;
560 blobmsg_for_each_attr(cur, c, rem) {
561 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
565 char *domain = blobmsg_get_string(cur);
566 size_t domainlen = strlen(domain);
567 if (domainlen > 0 && domain[domainlen - 1] == '.')
568 domain[domainlen - 1] = 0;
570 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
574 iface->search = realloc(iface->search, iface->search_len + len);
578 memcpy(&iface->search[iface->search_len], buf, len);
579 iface->search_len += len;
583 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
584 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
585 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
588 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
589 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
590 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
591 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
594 if ((c = tb[IFACE_ATTR_DHCPV6_ASSIGNALL]))
595 iface->dhcpv6_assignall = blobmsg_get_bool(c);
597 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
598 iface->default_router = blobmsg_get_u32(c);
600 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
601 iface->managed = blobmsg_get_u32(c);
603 if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
604 iface->ra_not_onlink = blobmsg_get_bool(c);
606 if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
607 iface->ra_advrouter = blobmsg_get_bool(c);
609 if ((c = tb[IFACE_ATTR_RA_MININTERVAL]))
610 iface->ra_mininterval = blobmsg_get_u32(c);
612 if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
613 iface->ra_maxinterval = blobmsg_get_u32(c);
615 if ((c = tb[IFACE_ATTR_RA_LIFETIME]))
616 iface->ra_lifetime = blobmsg_get_u32(c);
618 if ((c = tb[IFACE_ATTR_RA_USELEASETIME]))
619 iface->ra_useleasetime = blobmsg_get_bool(c);
621 if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
622 const char *prio = blobmsg_get_string(c);
624 if (!strcmp(prio, "high"))
625 iface->route_preference = 1;
626 else if (!strcmp(prio, "low"))
627 iface->route_preference = -1;
628 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
629 iface->route_preference = 0;
634 if ((c = tb[IFACE_ATTR_PD_MANAGER]))
635 strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
636 sizeof(iface->dhcpv6_pd_manager) - 1);
638 if ((c = tb[IFACE_ATTR_PD_CER]) &&
639 inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
642 if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
643 iface->learn_routes = blobmsg_get_bool(c);
645 if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
646 iface->external = blobmsg_get_bool(c);
651 close_interface(iface);
655 static int set_interface(struct uci_section *s)
657 blob_buf_init(&b, 0);
658 uci_to_blob(&b, s, &interface_attr_list);
660 return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
663 void odhcpd_reload(void)
665 struct uci_context *uci = uci_alloc_context();
667 while (!list_empty(&leases))
668 free_lease(list_first_entry(&leases, struct lease, head));
670 struct interface *master = NULL, *i, *n;
675 list_for_each_entry(i, &interfaces, head)
678 struct uci_package *dhcp = NULL;
679 if (!uci_load(uci, "dhcp", &dhcp)) {
680 struct uci_element *e;
681 uci_foreach_element(&dhcp->sections, e) {
682 struct uci_section *s = uci_to_section(e);
683 if (!strcmp(s->type, "host"))
685 else if (!strcmp(s->type, "odhcpd"))
689 uci_foreach_element(&dhcp->sections, e) {
690 struct uci_section *s = uci_to_section(e);
691 if (!strcmp(s->type, "dhcp"))
696 if (config.dhcp_statefile) {
697 char *path = strdup(config.dhcp_statefile);
699 mkdir_p(dirname(path), 0755);
704 ubus_apply_network();
707 bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
710 list_for_each_entry(i, &interfaces, head) {
714 if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
715 any_dhcpv6_slave = true;
717 if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
720 if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
721 any_ndp_slave = true;
724 /* Evaluate hybrid mode for master */
725 list_for_each_entry(i, &interfaces, head) {
729 enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
731 if (!ubus_has_prefix(i->name, i->ifname))
732 hybrid_mode = RELAYD_RELAY;
735 if (i->dhcpv6 == RELAYD_HYBRID)
736 i->dhcpv6 = hybrid_mode;
738 if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
739 i->dhcpv6 = RELAYD_DISABLED;
741 if (i->ra == RELAYD_HYBRID)
744 if (i->ra == RELAYD_RELAY && !any_ra_slave)
745 i->ra = RELAYD_DISABLED;
747 if (i->ndp == RELAYD_HYBRID)
748 i->ndp = hybrid_mode;
750 if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
751 i->ndp = RELAYD_DISABLED;
753 if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
758 list_for_each_entry_safe(i, n, &interfaces, head) {
760 /* Resolve hybrid mode */
761 if (i->dhcpv6 == RELAYD_HYBRID)
762 i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
763 RELAYD_RELAY : RELAYD_SERVER;
765 if (i->ra == RELAYD_HYBRID)
766 i->ra = (master && master->ra == RELAYD_RELAY) ?
767 RELAYD_RELAY : RELAYD_SERVER;
769 if (i->ndp == RELAYD_HYBRID)
770 i->ndp = (master && master->ndp == RELAYD_RELAY) ?
771 RELAYD_RELAY : RELAYD_DISABLED;
773 setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
774 setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
775 setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
776 setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
781 ndp_handle_addr6_dump();
782 uci_unload(uci, dhcp);
783 uci_free_context(uci);
786 static void handle_signal(int signal)
790 if (signal == SIGHUP) {
791 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
796 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
799 if (read(u->fd, b, sizeof(b)) < 0) {}
804 static struct uloop_fd reload_fd = { .cb = reload_cb };
806 void odhcpd_run(void)
808 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
810 reload_fd.fd = reload_pipe[0];
811 uloop_fd_add(&reload_fd, ULOOP_READ);
813 signal(SIGTERM, handle_signal);
814 signal(SIGINT, handle_signal);
815 signal(SIGHUP, handle_signal);
825 while (!list_empty(&interfaces))
826 close_interface(list_first_entry(&interfaces, struct interface, head));