Complete managed PD/CER-ID support
[project/odhcpd.git] / src / config.c
index 46137a4..a392af7 100644 (file)
@@ -36,6 +36,8 @@ enum {
        IFACE_ATTR_RA_MANAGEMENT,
        IFACE_ATTR_RA_OFFLINK,
        IFACE_ATTR_RA_PREFERENCE,
+       IFACE_ATTR_PD_MANAGER,
+       IFACE_ATTR_PD_CER,
        IFACE_ATTR_NDPROXY_ROUTING,
        IFACE_ATTR_NDPROXY_SLAVE,
        IFACE_ATTR_NDPROXY_STATIC,
@@ -59,6 +61,8 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_NDP] = { .name = "ndp", .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_DNS] = { .name = "dns", .type = BLOBMSG_TYPE_ARRAY },
        [IFACE_ATTR_DOMAIN] = { .name = "domain", .type = BLOBMSG_TYPE_ARRAY },
+       [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 },
@@ -302,6 +306,9 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
        if (ifname)
                strncpy(iface->ifname, ifname, sizeof(iface->ifname) - 1);
 
+       if ((iface->ifindex = if_nametoindex(iface->ifname)) <= 0)
+               return -1;
+
        iface->inuse = true;
 
        if ((c = tb[IFACE_ATTR_DYNAMICDHCP]))
@@ -451,6 +458,8 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
 
        if ((c = tb[IFACE_ATTR_RA_MANAGEMENT]))
                iface->managed = blobmsg_get_u32(c);
+       else if (overwrite)
+               iface->managed = 1;
 
        if ((c = tb[IFACE_ATTR_RA_OFFLINK]))
                iface->ra_not_onlink = blobmsg_get_bool(c);
@@ -468,9 +477,17 @@ 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);
-       else
+       else if (overwrite)
                iface->learn_routes = true;
 
        if ((c = tb[IFACE_ATTR_NDPROXY_SLAVE]))
@@ -489,12 +506,14 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                        if (!iface->static_ndp)
                                goto err;
 
+                       if (iface->static_ndp_len)
+                               iface->static_ndp[iface->static_ndp_len - 1] = ' ';
+
                        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:
@@ -513,8 +532,8 @@ static int set_interface(struct uci_section *s)
 void odhcpd_reload(void)
 {
        struct uci_context *uci = uci_alloc_context();
-       struct lease *l;
-       list_for_each_entry(l, &leases, head) {
+       while (!list_empty(&leases)) {
+               struct lease *l = list_first_entry(&leases, struct lease, head);
                list_del(&l->head);
                free(l->duid);
                free(l);
@@ -551,6 +570,23 @@ void odhcpd_reload(void)
        ubus_apply_network();
 #endif
 
+       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)
@@ -558,19 +594,28 @@ void odhcpd_reload(void)
 
                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;
        }
@@ -589,7 +634,7 @@ 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);