implement a generic peerdns option to suppress proto handler dns entries

[project/netifd.git] / interface.c

diff --git a/interface.c b/interface.c
index fbed513..b97f4ce 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -32,6 +32,7 @@ enum {
        IFACE_ATTR_PROTO,
        IFACE_ATTR_AUTO,
        IFACE_ATTR_DEFAULTROUTE,
+       IFACE_ATTR_PEERDNS,
        IFACE_ATTR_METRIC,
        IFACE_ATTR_MAX
 };
@@ -41,6 +42,7 @@ static const struct blobmsg_policy iface_attrs[IFACE_ATTR_MAX] = {
        [IFACE_ATTR_IFNAME] = { .name = "ifname", .type = BLOBMSG_TYPE_STRING },
        [IFACE_ATTR_AUTO] = { .name = "auto", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_DEFAULTROUTE] = { .name = "defaultroute", .type = BLOBMSG_TYPE_BOOL },
+       [IFACE_ATTR_PEERDNS] = { .name = "peerdns", .type = BLOBMSG_TYPE_BOOL },
        [IFACE_ATTR_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
 };
 
@@ -118,7 +120,7 @@ interface_add_data(struct interface *iface, const struct blob_attr *data)
        if (!blobmsg_check_attr(data, true))
                return UBUS_STATUS_INVALID_ARGUMENT;
 
-       n = calloc(1, sizeof(*data) + blob_pad_len(data));
+       n = calloc(1, sizeof(*n) + blob_pad_len(data));
        memcpy(n->data, data, blob_pad_len(data));
        n->node.key = blobmsg_name(data);
 
@@ -390,6 +392,8 @@ interface_init(struct interface *iface, const char *name,
        iface->autostart = blobmsg_get_bool_default(tb[IFACE_ATTR_AUTO], true);
        iface->proto_ip.no_defaultroute =
                !blobmsg_get_bool_default(tb[IFACE_ATTR_DEFAULTROUTE], true);
+       iface->proto_ip.no_dns =
+               !blobmsg_get_bool_default(tb[IFACE_ATTR_PEERDNS], true);
 
        iface->config_autostart = iface->autostart;
 }
@@ -616,6 +620,8 @@ interface_change_config(struct interface *if_old, struct interface *if_new)
                interface_ip_set_enabled(&if_old->proto_ip, false);
                interface_ip_set_enabled(&if_old->proto_ip, if_new->proto_ip.enabled);
        }
+       if (UPDATE(proto_ip.no_dns))
+               interface_write_resolv_conf();
 
 #undef UPDATE