config: respect ignore uci option
[project/odhcpd.git] / src / config.c
index e9a61a9..ba51375 100644 (file)
@@ -3,6 +3,9 @@
 #include <signal.h>
 #include <arpa/inet.h>
 #include <unistd.h>
+#include <libgen.h>
+#include <string.h>
+#include <sys/stat.h>
 
 #include <uci.h>
 #include <uci_blob.h>
@@ -30,16 +33,21 @@ enum {
        IFACE_ATTR_DHCPV4,
        IFACE_ATTR_DHCPV6,
        IFACE_ATTR_NDP,
+       IFACE_ATTR_ROUTER,
        IFACE_ATTR_DNS,
        IFACE_ATTR_DOMAIN,
-       IFACE_ATTR_ULA_COMPAT,
+       IFACE_ATTR_FILTER_CLASS,
+       IFACE_ATTR_DHCPV6_RAW,
        IFACE_ATTR_RA_DEFAULT,
        IFACE_ATTR_RA_MANAGEMENT,
        IFACE_ATTR_RA_OFFLINK,
        IFACE_ATTR_RA_PREFERENCE,
+       IFACE_ATTR_RA_ADVROUTER,
+       IFACE_ATTR_RA_MAXINTERVAL,
+       IFACE_ATTR_PD_MANAGER,
+       IFACE_ATTR_PD_CER,
        IFACE_ATTR_NDPROXY_ROUTING,
        IFACE_ATTR_NDPROXY_SLAVE,
-       IFACE_ATTR_NDPROXY_STATIC,
        IFACE_ATTR_MAX
 };
 
@@ -58,23 +66,27 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_DHCPV4] = { .name = "dhcpv4", .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_DHCPV6] = { .name = "dhcpv6", .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
+       [IFACE_ATTR_ROUTER] = { .name = "router", .type = BLOBMSG_TYPE_ARRAY },
        [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
        [IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
-       [IFACE_ATTR_ULA_COMPAT] = { .name = "ula_compat", .type = BLOBMSG_TYPE_BOOL },
+       [IFACE_ATTR_FILTER_CLASS] = { .name = "filter_class", .type = BLOBMSG_TYPE_STRING },
+       [IFACE_ATTR_DHCPV6_RAW] = { .name = "dhcpv6_raw", .type = BLOBMSG_TYPE_STRING },
+       [IFACE_ATTR_PD_MANAGER] = { .name = "pd_manager", .type = BLOBMSG_TYPE_STRING },
+       [IFACE_ATTR_PD_CER] = { .name = "pd_cer", .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_RA_DEFAULT] = { .name = "ra_default", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_MANAGEMENT] = { .name = "ra_management", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_RA_OFFLINK] = { .name = "ra_offlink", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_RA_PREFERENCE] = { .name = "ra_preference", .type = BLOBMSG_TYPE_STRING },
+       [IFACE_ATTR_RA_ADVROUTER] = { .name = "ra_advrouter", .type = BLOBMSG_TYPE_BOOL },
+       [IFACE_ATTR_RA_MAXINTERVAL] = { .name = "ra_maxinterval", .type = BLOBMSG_TYPE_INT32 },
        [IFACE_ATTR_NDPROXY_ROUTING] = { .name = "ndproxy_routing", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_NDPROXY_SLAVE] = { .name = "ndproxy_slave", .type = BLOBMSG_TYPE_BOOL },
-       [IFACE_ATTR_NDPROXY_STATIC] = { .name = "ndproxy_static", .type = BLOBMSG_TYPE_ARRAY },
 };
 
 static const struct uci_blob_param_info iface_attr_info[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_UPSTREAM] = { .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_DNS] = { .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_DOMAIN] = { .type = BLOBMSG_TYPE_STRING },
-       [IFACE_ATTR_NDPROXY_STATIC] = { .type = BLOBMSG_TYPE_STRING },
 };
 
 const struct uci_blob_param_list interface_attr_list = {
@@ -83,52 +95,81 @@ const struct uci_blob_param_list interface_attr_list = {
        .info = iface_attr_info,
 };
 
-
 enum {
        LEASE_ATTR_IP,
        LEASE_ATTR_MAC,
        LEASE_ATTR_DUID,
        LEASE_ATTR_HOSTID,
-       LEASE_ATTR_HOSTNAME,
+       LEASE_ATTR_LEASETIME,
+       LEASE_ATTR_NAME,
        LEASE_ATTR_MAX
 };
 
-
 static const struct blobmsg_policy lease_attrs[LEASE_ATTR_MAX] = {
        [LEASE_ATTR_IP] = { .name = "ip", .type = BLOBMSG_TYPE_STRING },
        [LEASE_ATTR_MAC] = { .name = "mac", .type = BLOBMSG_TYPE_STRING },
        [LEASE_ATTR_DUID] = { .name = "duid", .type = BLOBMSG_TYPE_STRING },
        [LEASE_ATTR_HOSTID] = { .name = "hostid", .type = BLOBMSG_TYPE_STRING },
-       [LEASE_ATTR_HOSTNAME] = { .name = "hostname", .type = BLOBMSG_TYPE_STRING },
+       [LEASE_ATTR_LEASETIME] = { .name = "leasetime", .type = BLOBMSG_TYPE_STRING },
+       [LEASE_ATTR_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
 };
 
-
 const struct uci_blob_param_list lease_attr_list = {
        .n_params = LEASE_ATTR_MAX,
        .params = lease_attrs,
 };
 
-
 enum {
-       ODHCPD_ATTR_LEGACY,
+       ODHCPD_ATTR_MAINDHCP,
        ODHCPD_ATTR_LEASEFILE,
        ODHCPD_ATTR_LEASETRIGGER,
        ODHCPD_ATTR_MAX
 };
 
-
 static const struct blobmsg_policy odhcpd_attrs[LEASE_ATTR_MAX] = {
-       [ODHCPD_ATTR_LEGACY] = { .name = "legacy", .type = BLOBMSG_TYPE_BOOL },
+       [ODHCPD_ATTR_MAINDHCP] = { .name = "maindhcp", .type = BLOBMSG_TYPE_BOOL },
        [ODHCPD_ATTR_LEASEFILE] = { .name = "leasefile", .type = BLOBMSG_TYPE_STRING },
        [ODHCPD_ATTR_LEASETRIGGER] = { .name = "leasetrigger", .type = BLOBMSG_TYPE_STRING },
 };
 
-
 const struct uci_blob_param_list odhcpd_attr_list = {
        .n_params = ODHCPD_ATTR_MAX,
        .params = odhcpd_attrs,
 };
 
+static int mkdir_p(char *dir, mode_t mask)
+{
+       char *l = strrchr(dir, '/');
+       int ret;
+
+       if (!l)
+               return 0;
+
+       *l = '\0';
+
+       if (mkdir_p(dir, mask))
+               return -1;
+
+       *l = '/';
+
+       ret = mkdir(dir, mask);
+       if (ret && errno == EEXIST)
+               return 0;
+
+       if (ret)
+               syslog(LOG_ERR, "mkdir(%s, %d) failed: %s\n", dir, mask, strerror(errno));
+
+       return ret;
+}
+
+static void free_lease(struct lease *l)
+{
+       if (l->head.next)
+               list_del(&l->head);
+
+       free(l->duid);
+       free(l);
+}
 
 static struct interface* get_interface(const char *name)
 {
@@ -139,18 +180,18 @@ static struct interface* get_interface(const char *name)
        return NULL;
 }
 
-
 static void clean_interface(struct interface *iface)
 {
        free(iface->dns);
        free(iface->search);
        free(iface->upstream);
-       free(iface->static_ndp);
+       free(iface->dhcpv4_router);
        free(iface->dhcpv4_dns);
+       free(iface->dhcpv6_raw);
+       free(iface->filter_class);
        memset(&iface->ra, 0, sizeof(*iface) - offsetof(struct interface, ra));
 }
 
-
 static void close_interface(struct interface *iface)
 {
        if (iface->head.next)
@@ -165,23 +206,20 @@ static void close_interface(struct interface *iface)
        free(iface);
 }
 
-
 static int parse_mode(const char *mode)
 {
-       if (!strcmp(mode, "disabled")) {
+       if (!strcmp(mode, "disabled"))
                return RELAYD_DISABLED;
-       } else if (!strcmp(mode, "server")) {
+       else if (!strcmp(mode, "server"))
                return RELAYD_SERVER;
-       } else if (!strcmp(mode, "relay")) {
+       else if (!strcmp(mode, "relay"))
                return RELAYD_RELAY;
-       } else if (!strcmp(mode, "hybrid")) {
+       else if (!strcmp(mode, "hybrid"))
                return RELAYD_HYBRID;
-       } else {
+       else
                return -1;
-       }
 }
 
-
 static void set_config(struct uci_section *s)
 {
        struct blob_attr *tb[ODHCPD_ATTR_MAX], *c;
@@ -190,7 +228,7 @@ static void set_config(struct uci_section *s)
        uci_to_blob(&b, s, &odhcpd_attr_list);
        blobmsg_parse(odhcpd_attrs, ODHCPD_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
 
-       if ((c = tb[ODHCPD_ATTR_LEGACY]))
+       if ((c = tb[ODHCPD_ATTR_MAINDHCP]))
                config.legacy = blobmsg_get_bool(c);
 
        if ((c = tb[ODHCPD_ATTR_LEASEFILE])) {
@@ -204,6 +242,33 @@ static void set_config(struct uci_section *s)
        }
 }
 
+static double parse_leasetime(struct blob_attr *c) {
+       char *val = blobmsg_get_string(c), *endptr = NULL;
+       double time = strcmp(val, "infinite") ? strtod(val, &endptr) : UINT32_MAX;
+
+       if (time && endptr && endptr[0]) {
+               if (endptr[0] == 's')
+                       time *= 1;
+               else if (endptr[0] == 'm')
+                       time *= 60;
+               else if (endptr[0] == 'h')
+                       time *= 3600;
+               else if (endptr[0] == 'd')
+                       time *= 24 * 3600;
+               else if (endptr[0] == 'w')
+                       time *= 7 * 24 * 3600;
+               else
+                       goto err;
+       }
+
+       if (time >= 60)
+               return time;
+
+       return 0;
+
+err:
+       return -1;
+}
 
 static int set_lease(struct uci_section *s)
 {
@@ -214,10 +279,12 @@ static int set_lease(struct uci_section *s)
        blobmsg_parse(lease_attrs, LEASE_ATTR_MAX, tb, blob_data(b.head), blob_len(b.head));
 
        size_t hostlen = 1;
-       if ((c = tb[LEASE_ATTR_HOSTNAME]))
+       if ((c = tb[LEASE_ATTR_NAME]))
                hostlen = blobmsg_data_len(c);
 
        struct lease *lease = calloc(1, sizeof(*lease) + hostlen);
+       if (!lease)
+               goto err;
 
        if (hostlen > 1)
                memcpy(lease->hostname, blobmsg_get_string(c), hostlen);
@@ -233,6 +300,9 @@ static int set_lease(struct uci_section *s)
        if ((c = tb[LEASE_ATTR_DUID])) {
                size_t duidlen = (blobmsg_data_len(c) - 1) / 2;
                lease->duid = malloc(duidlen);
+               if (!lease->duid)
+                       goto err;
+
                ssize_t len = odhcpd_unhexlify(lease->duid,
                                duidlen, blobmsg_get_string(c));
 
@@ -242,21 +312,32 @@ static int set_lease(struct uci_section *s)
                lease->duid_len = len;
        }
 
-       if ((c = tb[LEASE_ATTR_HOSTID]))
-               if (odhcpd_unhexlify((uint8_t*)&lease->hostid, sizeof(lease->hostid),
-                               blobmsg_get_string(c)) < 0)
+       if ((c = tb[LEASE_ATTR_HOSTID])) {
+               errno = 0;
+               lease->hostid = strtoul(blobmsg_get_string(c), NULL, 16);
+               if (errno)
+                       goto err;
+       }
+
+       if ((c = tb[LEASE_ATTR_LEASETIME])) {
+               double time = parse_leasetime(c);
+               if (time < 0)
                        goto err;
 
+               if (time >= 60)
+                       lease->dhcpv4_leasetime = time;
+       }
+
        list_add(&lease->head, &leases);
        return 0;
 
 err:
-       free(lease->duid);
-       free(lease);
+       if (lease)
+               free_lease(lease);
+
        return -1;
 }
 
-
 int config_parse_interface(void *data, size_t len, const char *name, bool overwrite)
 {
        struct blob_attr *tb[IFACE_ATTR_MAX], *c;
@@ -271,16 +352,20 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
        struct interface *iface = get_interface(name);
        if (!iface) {
                iface = calloc(1, sizeof(*iface));
+               if (!iface)
+                       return -1;
+
                strncpy(iface->name, name, sizeof(iface->name) - 1);
+
+               /* Default settings */
+               iface->managed = 1;
+               iface->learn_routes = true;
+
                list_add(&iface->head, &interfaces);
+               overwrite = true;
        }
 
        const char *ifname = NULL;
-#ifdef WITH_UBUS
-       if (overwrite || !iface->ifname[0])
-               ifname = ubus_get_ifname(name);
-#endif
-
        if (overwrite) {
                if ((c = tb[IFACE_ATTR_IFNAME]))
                        ifname = blobmsg_get_string(c);
@@ -288,12 +373,20 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                        ifname = blobmsg_get_string(c);
        }
 
+#ifdef WITH_UBUS
+       if (overwrite || !iface->ifname[0])
+               ifname = ubus_get_ifname(name);
+#endif
+
        if (!iface->ifname[0] && !ifname)
-               return -1;
+               goto err;
 
        if (ifname)
                strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
 
+       if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
+               goto err;
+
        iface->inuse = true;
 
        if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
@@ -303,22 +396,9 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                iface->ignore = blobmsg_get_bool(c);
 
        if ((c = tb[IFACE_ATTR_LEASETIME])) {
-               char *val = blobmsg_get_string(c), *endptr;
-               double time = strtod(val, &endptr);
-               if (time && endptr[0]) {
-                       if (endptr[0] == 's')
-                               time *= 1;
-                       else if (endptr[0] == 'm')
-                               time *= 60;
-                       else if (endptr[0] == 'h')
-                               time *= 3600;
-                       else if (endptr[0] == 'd')
-                               time *= 24 * 3600;
-                       else if (endptr[0] == 'w')
-                               time *= 7 * 24 * 3600;
-                       else
-                               goto err;
-               }
+               double time = parse_leasetime(c);
+               if (time < 0)
+                       goto err;
 
                if (time >= 60)
                        iface->dhcpv4_leasetime = time;
@@ -343,11 +423,14 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                unsigned rem;
 
                blobmsg_for_each_attr(cur, c, rem) {
-                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
+                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
                                continue;
 
                        iface->upstream = realloc(iface->upstream,
                                        iface->upstream_len + blobmsg_data_len(cur));
+                       if (!iface->upstream)
+                               goto err;
+
                        memcpy(iface->upstream + iface->upstream_len, blobmsg_get_string(cur), blobmsg_data_len(cur));
                        iface->upstream_len += blobmsg_data_len(cur);
                }
@@ -382,13 +465,34 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                        goto err;
        }
 
+       if ((c = tb[IFACE_ATTR_ROUTER])) {
+               struct blob_attr *cur;
+               unsigned rem;
+
+               blobmsg_for_each_attr(cur, c, rem) {
+                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
+                               continue;
+
+                       struct in_addr addr4;
+                       if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
+                               iface->dhcpv4_router = realloc(iface->dhcpv4_router,
+                                               (++iface->dhcpv4_router_cnt) * sizeof(*iface->dhcpv4_router));
+                               if (!iface->dhcpv4_router)
+                                       goto err;
+
+                               iface->dhcpv4_router[iface->dhcpv4_router_cnt - 1] = addr4;
+                       } else
+                               goto err;
+               }
+       }
+
        if ((c = tb[IFACE_ATTR_DNS])) {
                struct blob_attr *cur;
                unsigned rem;
 
                iface->always_rewrite_dns = true;
                blobmsg_for_each_attr(cur, c, rem) {
-                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
+                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
                                continue;
 
                        struct in_addr addr4;
@@ -396,14 +500,19 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                        if (inet_pton(AF_INET, blobmsg_get_string(cur), &addr4) == 1) {
                                iface->dhcpv4_dns = realloc(iface->dhcpv4_dns,
                                                (++iface->dhcpv4_dns_cnt) * sizeof(*iface->dhcpv4_dns));
+                               if (!iface->dhcpv4_dns)
+                                       goto err;
+
                                iface->dhcpv4_dns[iface->dhcpv4_dns_cnt - 1] = addr4;
                        } else if (inet_pton(AF_INET6, blobmsg_get_string(cur), &addr6) == 1) {
                                iface->dns = realloc(iface->dns,
                                                (++iface->dns_cnt) * sizeof(*iface->dns));
+                               if (!iface->dns)
+                                       goto err;
+
                                iface->dns[iface->dns_cnt - 1] = addr6;
-                       } else {
+                       } else
                                goto err;
-                       }
                }
        }
 
@@ -412,22 +521,38 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                unsigned rem;
 
                blobmsg_for_each_attr(cur, c, rem) {
-                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
+                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, false))
                                continue;
 
                        uint8_t buf[256];
-                       int len = dn_comp(blobmsg_get_string(cur), buf, sizeof(buf), NULL, NULL);
+                       char *domain = blobmsg_get_string(cur);
+                       size_t domainlen = strlen(domain);
+                       if (domainlen > 0 && domain[domainlen - 1] == '.')
+                               domain[domainlen - 1] = 0;
+
+                       int len = dn_comp(domain, buf, sizeof(buf), NULL, NULL);
                        if (len <= 0)
                                goto err;
 
                        iface->search = realloc(iface->search, iface->search_len + len);
+                       if (!iface->search)
+                               goto err;
+
                        memcpy(&iface->search[iface->search_len], buf, len);
                        iface->search_len += len;
                }
        }
 
-       if ((c = tb[IFACE_ATTR_ULA_COMPAT]))
-               iface->deprecate_ula_if_public_avail = blobmsg_get_bool(c);
+       if ((c = tb[IFACE_ATTR_FILTER_CLASS])) {
+               iface->filter_class = realloc(iface->filter_class, blobmsg_data_len(c) + 1);
+               memcpy(iface->filter_class, blobmsg_get_string(c), blobmsg_data_len(c) + 1);
+       }
+
+       if ((c = tb[IFACE_ATTR_DHCPV6_RAW])) {
+               iface->dhcpv6_raw_len = blobmsg_data_len(c) / 2;
+               iface->dhcpv6_raw = realloc(iface->dhcpv6_raw, iface->dhcpv6_raw_len);
+               odhcpd_unhexlify(iface->dhcpv6_raw, iface->dhcpv6_raw_len, blobmsg_get_string(c));
+       }
 
        if ((c = tb[IFACE_ATTR_RA_DEFAULT]))
                iface->default_router = blobmsg_get_u32(c);
@@ -438,6 +563,12 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
        if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
                iface->ra_not_onlink = blobmsg_get_bool(c);
 
+       if ((c = tb[IFACE_ATTR_RA_ADVROUTER]))
+               iface->ra_advrouter = blobmsg_get_bool(c);
+
+       if ((c = tb[IFACE_ATTR_RA_MAXINTERVAL]))
+               iface->ra_maxinterval = blobmsg_get_u32(c);
+
        if ((c = tb[IFACE_ATTR_RA_PREFERENCE])) {
                const char *prio = blobmsg_get_string(c);
 
@@ -451,28 +582,20 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                        goto err;
        }
 
+       if ((c = tb[IFACE_ATTR_PD_MANAGER]))
+               strncpy(iface->dhcpv6_pd_manager, blobmsg_get_string(c),
+                               sizeof(iface->dhcpv6_pd_manager) - 1);
+
+       if ((c = tb[IFACE_ATTR_PD_CER]) &&
+                       inet_pton(AF_INET6, blobmsg_get_string(c), &iface->dhcpv6_pd_cer) < 1)
+               goto err;
+
        if ((c = tb[IFACE_ATTR_NDPROXY_ROUTING]))
                iface->learn_routes = blobmsg_get_bool(c);
 
        if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
                iface->external = blobmsg_get_bool(c);
 
-       if ((c = tb[IFACE_ATTR_NDPROXY_STATIC])) {
-               struct blob_attr *cur;
-               unsigned rem;
-
-               blobmsg_for_each_attr(cur, c, rem) {
-                       if (blobmsg_type(cur) != BLOBMSG_TYPE_STRING || !blobmsg_check_attr(cur, NULL))
-                               continue;
-
-                       int len = blobmsg_data_len(cur);
-                       iface->static_ndp = realloc(iface->static_ndp, iface->static_ndp_len + len);
-                       memcpy(&iface->static_ndp[iface->static_ndp_len], blobmsg_get_string(cur), len);
-                       iface->static_ndp_len += len;
-               }
-       }
-
-       iface->ignore = (iface->ifindex = if_nametoindex(iface->ifname)) < 0;
        return 0;
 
 err:
@@ -484,21 +607,22 @@ static int set_interface(struct uci_section *s)
 {
        blob_buf_init(&b, 0);
        uci_to_blob(&b, s, &interface_attr_list);
+
        return config_parse_interface(blob_data(b.head), blob_len(b.head), s->e.name, true);
 }
 
-
 void odhcpd_reload(void)
 {
        struct uci_context *uci = uci_alloc_context();
-       struct lease *l;
-       list_for_each_entry(l, &leases, head) {
-               list_del(&l->head);
-               free(l->duid);
-               free(l);
-       }
+
+       while (!list_empty(&leases))
+               free_lease(list_first_entry(&leases, struct lease, head));
 
        struct interface *master = NULL, *i, *n;
+
+       if (!uci)
+               return;
+
        list_for_each_entry(i, &interfaces, head)
                clean_interface(i);
 
@@ -507,7 +631,7 @@ void odhcpd_reload(void)
                struct uci_element *e;
                uci_foreach_element(&dhcp->sections, e) {
                        struct uci_section *s = uci_to_section(e);
-                       if (!strcmp(s->type, "lease"))
+                       if (!strcmp(s->type, "host"))
                                set_lease(s);
                        else if (!strcmp(s->type, "odhcpd"))
                                set_config(s);
@@ -520,31 +644,63 @@ void odhcpd_reload(void)
                }
        }
 
+       if (config.dhcp_statefile) {
+               char *path = strdup(config.dhcp_statefile);
+
+               mkdir_p(dirname(path), 0755);
+               free(path);
+       }
 
 #ifdef WITH_UBUS
        ubus_apply_network();
 #endif
 
-       // Evaluate hybrid mode for master
+       bool any_dhcpv6_slave = false, any_ra_slave = false, any_ndp_slave = false;
+
+       /* Test for */
+       list_for_each_entry(i, &interfaces, head) {
+               if (i->master)
+                       continue;
+
+               if (i->dhcpv6 == RELAYD_HYBRID || i->dhcpv6 == RELAYD_RELAY)
+                       any_dhcpv6_slave = true;
+
+               if (i->ra == RELAYD_HYBRID || i->ra == RELAYD_RELAY)
+                       any_ra_slave = true;
+
+               if (i->ndp == RELAYD_HYBRID || i->ndp == RELAYD_RELAY)
+                       any_ndp_slave = true;
+       }
+
+       /* Evaluate hybrid mode for master */
        list_for_each_entry(i, &interfaces, head) {
                if (!i->master)
                        continue;
 
                enum odhcpd_mode hybrid_mode = RELAYD_DISABLED;
 #ifdef WITH_UBUS
-               if (ubus_has_prefix(i->name, i->ifname))
+               if (!ubus_has_prefix(i->name, i->ifname))
                        hybrid_mode = RELAYD_RELAY;
 #endif
 
                if (i->dhcpv6 == RELAYD_HYBRID)
                        i->dhcpv6 = hybrid_mode;
 
+               if (i->dhcpv6 == RELAYD_RELAY && !any_dhcpv6_slave)
+                       i->dhcpv6 = RELAYD_DISABLED;
+
                if (i->ra == RELAYD_HYBRID)
                        i->ra = hybrid_mode;
 
+               if (i->ra == RELAYD_RELAY && !any_ra_slave)
+                       i->ra = RELAYD_DISABLED;
+
                if (i->ndp == RELAYD_HYBRID)
                        i->ndp = hybrid_mode;
 
+               if (i->ndp == RELAYD_RELAY && !any_ndp_slave)
+                       i->ndp = RELAYD_DISABLED;
+
                if (i->dhcpv6 == RELAYD_RELAY || i->ra == RELAYD_RELAY || i->ndp == RELAYD_RELAY)
                        master = i;
        }
@@ -552,7 +708,7 @@ void odhcpd_reload(void)
 
        list_for_each_entry_safe(i, n, &interfaces, head) {
                if (i->inuse) {
-                       // Resolve hybrid mode
+                       /* Resolve hybrid mode */
                        if (i->dhcpv6 == RELAYD_HYBRID)
                                i->dhcpv6 = (master && master->dhcpv6 == RELAYD_RELAY) ?
                                                RELAYD_RELAY : RELAYD_SERVER;
@@ -563,12 +719,12 @@ void odhcpd_reload(void)
 
                        if (i->ndp == RELAYD_HYBRID)
                                i->ndp = (master && master->ndp == RELAYD_RELAY) ?
-                                               RELAYD_RELAY : RELAYD_SERVER;
+                                               RELAYD_RELAY : RELAYD_DISABLED;
 
-                       setup_router_interface(i, true);
-                       setup_dhcpv6_interface(i, true);
-                       setup_ndp_interface(i, true);
-                       setup_dhcpv4_interface(i, true);
+                       setup_router_interface(i, !i->ignore || i->ra != RELAYD_DISABLED);
+                       setup_dhcpv6_interface(i, !i->ignore || i->dhcpv6 != RELAYD_DISABLED);
+                       setup_ndp_interface(i, !i->ignore || i->ndp != RELAYD_DISABLED);
+                       setup_dhcpv4_interface(i, !i->ignore || i->dhcpv4 != RELAYD_DISABLED);
                } else {
                        close_interface(i);
                }
@@ -578,22 +734,21 @@ void odhcpd_reload(void)
        uci_free_context(uci);
 }
 
-
 static void handle_signal(int signal)
 {
        char b[1] = {0};
-       if (signal == SIGHUP)
-               write(reload_pipe[1], b, sizeof(b));
-       else
+
+       if (signal == SIGHUP) {
+               if (write(reload_pipe[1], b, sizeof(b)) < 0) {}
+       } else
                uloop_end();
 }
 
-
-
 static void reload_cb(struct uloop_fd *u, _unused unsigned int events)
 {
        char b[512];
-       read(u->fd, b, sizeof(b));
+       if (read(u->fd, b, sizeof(b)) < 0) {}
+
        odhcpd_reload();
 }
 
@@ -601,7 +756,8 @@ static struct uloop_fd reload_fd = { .cb = reload_cb };
 
 void odhcpd_run(void)
 {
-       pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC);
+       if (pipe2(reload_pipe, O_NONBLOCK | O_CLOEXEC) < 0) {}
+
        reload_fd.fd = reload_pipe[0];
        uloop_fd_add(&reload_fd, ULOOP_READ);
 
@@ -616,5 +772,8 @@ void odhcpd_run(void)
 
        odhcpd_reload();
        uloop_run();
+
+       while (!list_empty(&interfaces))
+               close_interface(list_first_entry(&interfaces, struct interface, head));
 }