15 static struct blob_buf b;
16 static int reload_pipe[2];
17 struct list_head leases = LIST_HEAD_INIT(leases);
18 struct list_head interfaces = LIST_HEAD_INIT(interfaces);
19 struct config config = {false, NULL, NULL};
25 IFACE_ATTR_DYNAMICDHCP,
39 IFACE_ATTR_FILTER_CLASS,
40 IFACE_ATTR_DHCPV6_RAW,
41 IFACE_ATTR_RA_DEFAULT,
42 IFACE_ATTR_RA_MANAGEMENT,
43 IFACE_ATTR_RA_OFFLINK,
44 IFACE_ATTR_RA_PREFERENCE,
45 IFACE_ATTR_RA_ADVROUTER,
46 IFACE_ATTR_RA_MAXINTERVAL,
47 IFACE_ATTR_PD_MANAGER,
49 IFACE_ATTR_NDPROXY_ROUTING,
50 IFACE_ATTR_NDPROXY_SLAVE,
54 static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
55 [IFACE_ATTR_INTERFACE] = { .name = "interface", .type = BLOBMSG_TYPE_STRING },
56 [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
57 [IFACE_ATTR_NETWORKID] = { .name = "networkid", .type = BLOBMSG_TYPE_STRING },
58 [IFACE_ATTR_DYNAMICDHCP] = { .name = "dynamicdhcp", .type = BLOBMSG_TYPE_BOOL },
59 [IFACE_ATTR_IGNORE] = { .name = "ignore", .type = BLOBMSG_TYPE_BOOL },
60 [IFACE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
61 [IFACE_ATTR_START] = { .name = "start", .type = BLOBMSG_TYPE_INT32 },
62 [IFACE_ATTR_LIMIT] = { .name = "limit", .type = BLOBMSG_TYPE_INT32 },
63 [IFACE_ATTR_MASTER] = { .name = "master", .type = BLOBMSG_TYPE_BOOL },
64 [IFACE_ATTR_UPSTREAM] = { .name = "upstream", .type = BLOBMSG_TYPE_ARRAY },
65 [IFACE_ATTR_RA] = { .name = "ra", .type = BLOBMSG_TYPE_STRING },
66 [IFACE_ATTR_DHCPV4] = { .name = "dhcpv4", .type = BLOBMSG_TYPE_STRING },
67 [IFACE_ATTR_DHCPV6] = { .name = "dhcpv6", .type = BLOBMSG_TYPE_STRING },
68 [IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
69 [IFACE_ATTR_ROUTER] = { .name = "router", .type = BLOBMSG_TYPE_ARRAY },
70 [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
71 [IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
72 [IFACE_ATTR_FILTER_CLASS] = { .name = "filter_class", .type = BLOBMSG_TYPE_STRING },
73 [IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
74 [IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
75 [IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
76 [IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
77 [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
78 [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
79 [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
80 [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL },
81 [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
82 [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
83 [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
86 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
87 [IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING },
88 [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
89 [IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING },
92 const struct uci_blob_param_list interface_attr_list = {
93 .n_params = IFACE_ATTR_MAX,
94 .params = iface_attrs,
95 .info = iface_attr_info,
103 LEASE_ATTR_LEASETIME,
108 static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
109 [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
110 [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
111 [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
112 [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
113 [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
114 [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
117 const struct uci_blob_param_list lease_attr_list = {
118 .n_params = LEASE_ATTR_MAX,
119 .params = lease_attrs,
123 ODHCPD_ATTR_MAINDHCP,
124 ODHCPD_ATTR_LEASEFILE,
125 ODHCPD_ATTR_LEASETRIGGER,
129 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
130 [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
131 [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
132 [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
135 const struct uci_blob_param_list odhcpd_attr_list = {
136 .n_params = ODHCPD_ATTR_MAX,
137 .params = odhcpd_attrs,
140 static int mkdir_p(char *dir, mode_t mask)
142 char *l = strrchr(dir, '/');
150 if (mkdir_p(dir, mask))
155 ret = mkdir(dir, mask);
156 if (ret && errno == EEXIST)
160 syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno));
165 static void free_lease(struct lease *l)
174 static struct interface* get_interface(const char *name)
177 list_for_each_entry(c, &interfaces, head)
178 if (!strcmp(c->name, name))
183 static void clean_interface(struct interface *iface)
187 free(iface->upstream);
188 free(iface->dhcpv4_router);
189 free(iface->dhcpv4_dns);
190 free(iface->dhcpv6_raw);
191 free(iface->filter_class);
192 memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
195 static void close_interface(struct interface *iface)
197 if (iface->head.next)
198 list_del(&iface->head);
200 setup_router_interface(iface, false);
201 setup_dhcpv6_interface(iface, false);
202 setup_ndp_interface(iface, false);
203 setup_dhcpv4_interface(iface, false);
205 clean_interface(iface);
209 static int parse_mode(const char *mode)
211 if (!strcmp(mode, "disabled"))
212 return RELAYD_DISABLED;
213 else if (!strcmp(mode, "server"))
214 return RELAYD_SERVER;
215 else if (!strcmp(mode, "relay"))
217 else if (!strcmp(mode, "hybrid"))
218 return RELAYD_HYBRID;
223 static void set_config(struct uci_section *s)
225 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
227 blob_buf_init(&b, 0);
228 uci_to_blob(&b, s, &odhcpd_attr_list);
229 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
231 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
232 config.legacy = blobmsg_get_bool(c);
234 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
235 free(config.dhcp_statefile);
236 config.dhcp_statefile = strdup(blobmsg_get_string(c));
239 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
240 free(config.dhcp_cb);
241 config.dhcp_cb = strdup(blobmsg_get_string(c));
245 static double parse_leasetime(struct blob_attr *c) {
246 char *val = blobmsg_get_string(c), *endptr = NULL;
247 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
249 if (time && endptr && endptr[0]) {
250 if (endptr[0] == 's')
252 else if (endptr[0] == 'm')
254 else if (endptr[0] == 'h')
256 else if (endptr[0] == 'd')
258 else if (endptr[0] == 'w')
259 time *= 7 * 24 * 3600;
273 static int set_lease(struct uci_section *s)
275 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
277 blob_buf_init(&b, 0);
278 uci_to_blob(&b, s, &lease_attr_list);
279 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
282 if ((c = tb[LEASE_ATTR_NAME]))
283 hostlen = blobmsg_data_len(c);
285 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
290 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
292 if ((c = tb[LEASE_ATTR_IP]))
293 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
296 if ((c = tb[LEASE_ATTR_MAC]))
297 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
300 if ((c = tb[LEASE_ATTR_DUID])) {
301 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
302 lease->duid = malloc(duidlen);
306 ssize_t len = odhcpd_unhexlify(lease->duid,
307 duidlen, blobmsg_get_string(c));
312 lease->duid_len = len;
315 if ((c = tb[LEASE_ATTR_HOSTID])) {
317 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
322 if ((c = tb[LEASE_ATTR_LEASETIME])) {
323 double time = parse_leasetime(c);
328 lease->dhcpv4_leasetime = time;
331 list_add(&lease->head, &leases);
341 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
343 struct blob_attr *tb[IFACE_ATTR_MAX], *c;
344 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, data, len);
346 if (tb[IFACE_ATTR_INTERFACE])
347 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
352 struct interface *iface = get_interface(name);
354 iface = calloc(1, sizeof(*iface));
358 strncpy(iface->name, name, sizeof(iface->name) - 1);
360 /* Default settings */
362 iface->learn_routes = true;
364 list_add(&iface->head, &interfaces);
368 const char *ifname = NULL;
370 if ((c = tb[IFACE_ATTR_IFNAME]))
371 ifname = blobmsg_get_string(c);
372 else if ((c = tb[IFACE_ATTR_NETWORKID]))
373 ifname = blobmsg_get_string(c);
377 if (overwrite || !iface->ifname[0])
378 ifname = ubus_get_ifname(name);
381 if (!iface->ifname[0] && !ifname)
385 strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
387 if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
392 if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
393 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
395 if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
396 iface->ignore = blobmsg_get_bool(c);
398 if ((c = tb[IFACE_ATTR_LEASETIME])) {
399 double time = parse_leasetime(c);
404 iface->dhcpv4_leasetime = time;
407 if ((c = tb[IFACE_ATTR_START])) {
408 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
411 iface->dhcpv4 = RELAYD_SERVER;
414 if ((c = tb[IFACE_ATTR_LIMIT]))
415 iface->dhcpv4_end.s_addr = htonl(
416 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
418 if ((c = tb[IFACE_ATTR_MASTER]))
419 iface->master = blobmsg_get_bool(c);
421 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
422 struct blob_attr *cur;
425 blobmsg_for_each_attr(cur, c, rem) {
426 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
429 iface->upstream = realloc(iface->upstream,
430 iface->upstream_len + blobmsg_data_len(cur));
431 if (!iface->upstream)
434 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
435 iface->upstream_len += blobmsg_data_len(cur);
440 if ((c = tb[IFACE_ATTR_RA])) {
441 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
447 if ((c = tb[IFACE_ATTR_DHCPV4])) {
448 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
449 iface->dhcpv4 = mode;
454 if ((c = tb[IFACE_ATTR_DHCPV6])) {
455 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
456 iface->dhcpv6 = mode;
461 if ((c = tb[IFACE_ATTR_NDP])) {
462 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
468 if ((c = tb[IFACE_ATTR_ROUTER])) {
469 struct blob_attr *cur;
472 blobmsg_for_each_attr(cur, c, rem) {
473 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
476 struct in_addr addr4;
477 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
478 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
479 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
480 if (!iface->dhcpv4_router)
483 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
489 if ((c = tb[IFACE_ATTR_DNS])) {
490 struct blob_attr *cur;
493 iface->always_rewrite_dns = true;
494 blobmsg_for_each_attr(cur, c, rem) {
495 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
498 struct in_addr addr4;
499 struct in6_addr addr6;
500 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
501 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
502 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
503 if (!iface->dhcpv4_dns)
506 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
507 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
508 iface->dns = realloc(iface->dns,
509 (++iface->dns_cnt) * sizeof(*iface->dns));
513 iface->dns[iface->dns_cnt - 1] = addr6;
519 if ((c = tb[IFACE_ATTR_DOMAIN])) {
520 struct blob_attr *cur;
523 blobmsg_for_each_attr(cur, c, rem) {
524 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
528 char *domain = blobmsg_get_string(cur);
529 size_t domainlen = strlen(domain);
530 if (domainlen > 0 && domain[domainlen - 1] == '.')
531 domain[domainlen - 1] = 0;
533 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
537 iface->search = realloc(iface->search, iface->search_len + len);
541 memcpy(&iface->search[iface->search_len], buf, len);
542 iface->search_len += len;
546 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
547 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
548 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
551 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
552 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
553 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
554 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
557 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
558 iface->default_router = blobmsg_get_u32(c);
560 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
561 iface->managed = blobmsg_get_u32(c);
563 if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
564 iface->ra_not_onlink = blobmsg_get_bool(c);
566 if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
567 iface->ra_advrouter = blobmsg_get_bool(c);
569 if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
570 iface->ra_maxinterval = blobmsg_get_u32(c);
572 if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
573 const char *prio = blobmsg_get_string(c);
575 if (!strcmp(prio, "high"))
576 iface->route_preference = 1;
577 else if (!strcmp(prio, "low"))
578 iface->route_preference = -1;
579 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
580 iface->route_preference = 0;
585 if ((c = tb[IFACE_ATTR_PD_MANAGER]))
586 strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
587 sizeof(iface->dhcpv6_pd_manager) - 1);
589 if ((c = tb[IFACE_ATTR_PD_CER]) &&
590 inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
593 if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
594 iface->learn_routes = blobmsg_get_bool(c);
596 if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
597 iface->external = blobmsg_get_bool(c);
602 close_interface(iface);
606 static int set_interface(struct uci_section *s)
608 blob_buf_init(&b, 0);
609 uci_to_blob(&b, s, &interface_attr_list);
611 return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
614 void odhcpd_reload(void)
616 struct uci_context *uci = uci_alloc_context();
618 while (!list_empty(&leases))
619 free_lease(list_first_entry(&leases, struct lease, head));
621 struct interface *master = NULL, *i, *n;
626 list_for_each_entry(i, &interfaces, head)
629 struct uci_package *dhcp = NULL;
630 if (!uci_load(uci, "dhcp", &dhcp)) {
631 struct uci_element *e;
632 uci_foreach_element(&dhcp->sections, e) {
633 struct uci_section *s = uci_to_section(e);
634 if (!strcmp(s->type, "host"))
636 else if (!strcmp(s->type, "odhcpd"))
640 uci_foreach_element(&dhcp->sections, e) {
641 struct uci_section *s = uci_to_section(e);
642 if (!strcmp(s->type, "dhcp"))
647 if (config.dhcp_statefile) {
648 char *path = strdup(config.dhcp_statefile);
650 mkdir_p(dirname(path), 0755);
655 ubus_apply_network();
658 bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
661 list_for_each_entry(i, &interfaces, head) {
665 if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
666 any_dhcpv6_slave = true;
668 if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
671 if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
672 any_ndp_slave = true;
675 /* Evaluate hybrid mode for master */
676 list_for_each_entry(i, &interfaces, head) {
680 enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
682 if (!ubus_has_prefix(i->name, i->ifname))
683 hybrid_mode = RELAYD_RELAY;
686 if (i->dhcpv6 == RELAYD_HYBRID)
687 i->dhcpv6 = hybrid_mode;
689 if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
690 i->dhcpv6 = RELAYD_DISABLED;
692 if (i->ra == RELAYD_HYBRID)
695 if (i->ra == RELAYD_RELAY && !any_ra_slave)
696 i->ra = RELAYD_DISABLED;
698 if (i->ndp == RELAYD_HYBRID)
699 i->ndp = hybrid_mode;
701 if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
702 i->ndp = RELAYD_DISABLED;
704 if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
709 list_for_each_entry_safe(i, n, &interfaces, head) {
711 /* Resolve hybrid mode */
712 if (i->dhcpv6 == RELAYD_HYBRID)
713 i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
714 RELAYD_RELAY : RELAYD_SERVER;
716 if (i->ra == RELAYD_HYBRID)
717 i->ra = (master && master->ra == RELAYD_RELAY) ?
718 RELAYD_RELAY : RELAYD_SERVER;
720 if (i->ndp == RELAYD_HYBRID)
721 i->ndp = (master && master->ndp == RELAYD_RELAY) ?
722 RELAYD_RELAY : RELAYD_DISABLED;
724 setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
725 setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
726 setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
727 setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
733 uci_unload(uci, dhcp);
734 uci_free_context(uci);
737 static void handle_signal(int signal)
741 if (signal == SIGHUP) {
742 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
747 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
750 if (read(u->fd, b, sizeof(b)) < 0) {}
755 static struct uloop_fd reload_fd = { .cb = reload_cb };
757 void odhcpd_run(void)
759 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
761 reload_fd.fd = reload_pipe[0];
762 uloop_fd_add(&reload_fd, ULOOP_READ);
764 signal(SIGTERM, handle_signal);
765 signal(SIGINT, handle_signal);
766 signal(SIGHUP, handle_signal);
776 while (!list_empty(&interfaces))
777 close_interface(list_first_entry(&interfaces, struct interface, head));