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,
104 LEASE_ATTR_LEASETIME,
110 static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
111 [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
112 [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
113 [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
114 [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
115 [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
116 [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
120 const struct uci_blob_param_list lease_attr_list = {
121 .n_params = LEASE_ATTR_MAX,
122 .params = lease_attrs,
127 ODHCPD_ATTR_MAINDHCP,
128 ODHCPD_ATTR_LEASEFILE,
129 ODHCPD_ATTR_LEASETRIGGER,
134 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
135 [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
136 [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
137 [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
141 const struct uci_blob_param_list odhcpd_attr_list = {
142 .n_params = ODHCPD_ATTR_MAX,
143 .params = odhcpd_attrs,
146 static int mkdir_p(char *dir, mode_t mask)
148 char *l = strrchr(dir, '/');
156 if (mkdir_p(dir, mask))
161 ret = mkdir(dir, mask);
162 if (ret && errno == EEXIST)
166 syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno));
171 static struct interface* get_interface(const char *name)
174 list_for_each_entry(c, &interfaces, head)
175 if (!strcmp(c->name, name))
181 static void clean_interface(struct interface *iface)
185 free(iface->upstream);
186 free(iface->dhcpv4_router);
187 free(iface->dhcpv4_dns);
188 free(iface->dhcpv6_raw);
189 free(iface->filter_class);
190 memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
194 static void close_interface(struct interface *iface)
196 if (iface->head.next)
197 list_del(&iface->head);
199 setup_router_interface(iface, false);
200 setup_dhcpv6_interface(iface, false);
201 setup_ndp_interface(iface, false);
202 setup_dhcpv4_interface(iface, false);
204 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;
225 static void set_config(struct uci_section *s)
227 struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
229 blob_buf_init(&b, 0);
230 uci_to_blob(&b, s, &odhcpd_attr_list);
231 blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
233 if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
234 config.legacy = blobmsg_get_bool(c);
236 if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
237 free(config.dhcp_statefile);
238 config.dhcp_statefile = strdup(blobmsg_get_string(c));
241 if ((c = tb[ODHCPD_ATTR_LEASETRIGGER])) {
242 free(config.dhcp_cb);
243 config.dhcp_cb = strdup(blobmsg_get_string(c));
247 static double parse_leasetime(struct blob_attr *c) {
248 char *val = blobmsg_get_string(c), *endptr = NULL;
249 double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
251 if (time && endptr && endptr[0]) {
252 if (endptr[0] == 's')
254 else if (endptr[0] == 'm')
256 else if (endptr[0] == 'h')
258 else if (endptr[0] == 'd')
260 else if (endptr[0] == 'w')
261 time *= 7 * 24 * 3600;
275 static int set_lease(struct uci_section *s)
277 struct blob_attr *tb[LEASE_ATTR_MAX], *c;
279 blob_buf_init(&b, 0);
280 uci_to_blob(&b, s, &lease_attr_list);
281 blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
284 if ((c = tb[LEASE_ATTR_NAME]))
285 hostlen = blobmsg_data_len(c);
287 struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
292 memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
294 if ((c = tb[LEASE_ATTR_IP]))
295 if (inet_pton(AF_INET, blobmsg_get_string(c), &lease->ipaddr) < 0)
298 if ((c = tb[LEASE_ATTR_MAC]))
299 if (!ether_aton_r(blobmsg_get_string(c), &lease->mac))
302 if ((c = tb[LEASE_ATTR_DUID])) {
303 size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
304 lease->duid = malloc(duidlen);
308 ssize_t len = odhcpd_unhexlify(lease->duid,
309 duidlen, blobmsg_get_string(c));
314 lease->duid_len = len;
317 if ((c = tb[LEASE_ATTR_HOSTID])) {
319 lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
324 if ((c = tb[LEASE_ATTR_LEASETIME])) {
325 double time = parse_leasetime(c);
330 lease->dhcpv4_leasetime = time;
333 list_add(&lease->head, &leases);
345 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
347 struct blob_attr *tb[IFACE_ATTR_MAX], *c;
348 blobmsg_parse(iface_attrs, IFACE_ATTR_MAX, tb, data, len);
350 if (tb[IFACE_ATTR_INTERFACE])
351 name = blobmsg_get_string(tb[IFACE_ATTR_INTERFACE]);
356 struct interface *iface = get_interface(name);
358 iface = calloc(1, sizeof(*iface));
362 strncpy(iface->name, name, sizeof(iface->name) - 1);
364 /* Default settings */
366 iface->learn_routes = true;
368 list_add(&iface->head, &interfaces);
372 const char *ifname = NULL;
374 if ((c = tb[IFACE_ATTR_IFNAME]))
375 ifname = blobmsg_get_string(c);
376 else if ((c = tb[IFACE_ATTR_NETWORKID]))
377 ifname = blobmsg_get_string(c);
381 if (overwrite || !iface->ifname[0])
382 ifname = ubus_get_ifname(name);
385 if (!iface->ifname[0] && !ifname)
389 strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
391 if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
396 if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
397 iface->no_dynamic_dhcp = !blobmsg_get_bool(c);
399 if (overwrite && (c = tb[IFACE_ATTR_IGNORE]))
400 iface->ignore = blobmsg_get_bool(c);
402 if ((c = tb[IFACE_ATTR_LEASETIME])) {
403 double time = parse_leasetime(c);
408 iface->dhcpv4_leasetime = time;
411 if ((c = tb[IFACE_ATTR_START])) {
412 iface->dhcpv4_start.s_addr = htonl(blobmsg_get_u32(c));
415 iface->dhcpv4 = RELAYD_SERVER;
418 if ((c = tb[IFACE_ATTR_LIMIT]))
419 iface->dhcpv4_end.s_addr = htonl(
420 ntohl(iface->dhcpv4_start.s_addr) + blobmsg_get_u32(c));
422 if ((c = tb[IFACE_ATTR_MASTER]))
423 iface->master = blobmsg_get_bool(c);
425 if (overwrite && (c = tb[IFACE_ATTR_UPSTREAM])) {
426 struct blob_attr *cur;
429 blobmsg_for_each_attr(cur, c, rem) {
430 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
433 iface->upstream = realloc(iface->upstream,
434 iface->upstream_len + blobmsg_data_len(cur));
435 if (!iface->upstream)
438 memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
439 iface->upstream_len += blobmsg_data_len(cur);
444 if ((c = tb[IFACE_ATTR_RA])) {
445 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
451 if ((c = tb[IFACE_ATTR_DHCPV4])) {
452 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
453 iface->dhcpv4 = mode;
458 if ((c = tb[IFACE_ATTR_DHCPV6])) {
459 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
460 iface->dhcpv6 = mode;
465 if ((c = tb[IFACE_ATTR_NDP])) {
466 if ((mode = parse_mode(blobmsg_get_string(c))) >= 0)
472 if ((c = tb[IFACE_ATTR_ROUTER])) {
473 struct blob_attr *cur;
476 blobmsg_for_each_attr(cur, c, rem) {
477 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
480 struct in_addr addr4;
481 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
482 iface->dhcpv4_router = realloc(iface->dhcpv4_router,
483 (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
484 if (!iface->dhcpv4_router)
487 iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
494 if ((c = tb[IFACE_ATTR_DNS])) {
495 struct blob_attr *cur;
498 iface->always_rewrite_dns = true;
499 blobmsg_for_each_attr(cur, c, rem) {
500 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
503 struct in_addr addr4;
504 struct in6_addr addr6;
505 if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
506 iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
507 (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
508 if (!iface->dhcpv4_dns)
511 iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
512 } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
513 iface->dns = realloc(iface->dns,
514 (++iface->dns_cnt) * sizeof(*iface->dns));
518 iface->dns[iface->dns_cnt - 1] = addr6;
525 if ((c = tb[IFACE_ATTR_DOMAIN])) {
526 struct blob_attr *cur;
529 blobmsg_for_each_attr(cur, c, rem) {
530 if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
534 char *domain = blobmsg_get_string(cur);
535 size_t domainlen = strlen(domain);
536 if (domainlen > 0 && domain[domainlen - 1] == '.')
537 domain[domainlen - 1] = 0;
539 int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
543 iface->search = realloc(iface->search, iface->search_len + len);
547 memcpy(&iface->search[iface->search_len], buf, len);
548 iface->search_len += len;
552 if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
553 iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
554 memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
557 if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
558 iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
559 iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
560 odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
563 if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
564 iface->default_router = blobmsg_get_u32(c);
566 if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
567 iface->managed = blobmsg_get_u32(c);
569 if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
570 iface->ra_not_onlink = blobmsg_get_bool(c);
572 if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
573 iface->ra_advrouter = blobmsg_get_bool(c);
575 if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
576 iface->ra_maxinterval = blobmsg_get_u32(c);
578 if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
579 const char *prio = blobmsg_get_string(c);
581 if (!strcmp(prio, "high"))
582 iface->route_preference = 1;
583 else if (!strcmp(prio, "low"))
584 iface->route_preference = -1;
585 else if (!strcmp(prio, "medium") || !strcmp(prio, "default"))
586 iface->route_preference = 0;
591 if ((c = tb[IFACE_ATTR_PD_MANAGER]))
592 strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
593 sizeof(iface->dhcpv6_pd_manager) - 1);
595 if ((c = tb[IFACE_ATTR_PD_CER]) &&
596 inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
599 if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
600 iface->learn_routes = blobmsg_get_bool(c);
602 if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
603 iface->external = blobmsg_get_bool(c);
608 close_interface(iface);
612 static int set_interface(struct uci_section *s)
614 blob_buf_init(&b, 0);
615 uci_to_blob(&b, s, &interface_attr_list);
616 return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
620 void odhcpd_reload(void)
622 struct uci_context *uci = uci_alloc_context();
623 while (!list_empty(&leases)) {
624 struct lease *l = list_first_entry(&leases, struct lease, head);
630 struct interface *master = NULL, *i, *n;
635 list_for_each_entry(i, &interfaces, head)
638 struct uci_package *dhcp = NULL;
639 if (!uci_load(uci, "dhcp", &dhcp)) {
640 struct uci_element *e;
641 uci_foreach_element(&dhcp->sections, e) {
642 struct uci_section *s = uci_to_section(e);
643 if (!strcmp(s->type, "host"))
645 else if (!strcmp(s->type, "odhcpd"))
649 uci_foreach_element(&dhcp->sections, e) {
650 struct uci_section *s = uci_to_section(e);
651 if (!strcmp(s->type, "dhcp"))
656 if (config.dhcp_statefile) {
657 char *path = strdup(config.dhcp_statefile);
659 mkdir_p(dirname(path), 0755);
664 ubus_apply_network();
667 bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
670 list_for_each_entry(i, &interfaces, head) {
674 if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
675 any_dhcpv6_slave = true;
677 if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
680 if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
681 any_ndp_slave = true;
684 // Evaluate hybrid mode for master
685 list_for_each_entry(i, &interfaces, head) {
689 enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
691 if (!ubus_has_prefix(i->name, i->ifname))
692 hybrid_mode = RELAYD_RELAY;
695 if (i->dhcpv6 == RELAYD_HYBRID)
696 i->dhcpv6 = hybrid_mode;
698 if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
699 i->dhcpv6 = RELAYD_DISABLED;
701 if (i->ra == RELAYD_HYBRID)
704 if (i->ra == RELAYD_RELAY && !any_ra_slave)
705 i->ra = RELAYD_DISABLED;
707 if (i->ndp == RELAYD_HYBRID)
708 i->ndp = hybrid_mode;
710 if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
711 i->ndp = RELAYD_DISABLED;
713 if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
718 list_for_each_entry_safe(i, n, &interfaces, head) {
720 // Resolve hybrid mode
721 if (i->dhcpv6 == RELAYD_HYBRID)
722 i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
723 RELAYD_RELAY : RELAYD_SERVER;
725 if (i->ra == RELAYD_HYBRID)
726 i->ra = (master && master->ra == RELAYD_RELAY) ?
727 RELAYD_RELAY : RELAYD_SERVER;
729 if (i->ndp == RELAYD_HYBRID)
730 i->ndp = (master && master->ndp == RELAYD_RELAY) ?
731 RELAYD_RELAY : RELAYD_DISABLED;
733 setup_router_interface(i, true);
734 setup_dhcpv6_interface(i, true);
735 setup_ndp_interface(i, true);
736 setup_dhcpv4_interface(i, true);
742 uci_unload(uci, dhcp);
743 uci_free_context(uci);
747 static void handle_signal(int signal)
751 if (signal == SIGHUP) {
752 if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
759 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
762 if (read(u->fd, b, sizeof(b)) < 0) {}
766 static struct uloop_fd reload_fd = { .cb = reload_cb };
768 void odhcpd_run(void)
770 if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
771 reload_fd.fd = reload_pipe[0];
772 uloop_fd_add(&reload_fd, ULOOP_READ);
774 signal(SIGTERM, handle_signal);
775 signal(SIGINT, handle_signal);
776 signal(SIGHUP, handle_signal);
786 while (!list_empty(&interfaces))
787 close_interface(list_first_entry(&interfaces, struct interface, head));