dump interface routes via ubus

[project/netifd.git] / interface.c

diff --git a/interface.c b/interface.c
index 3dceef0..f281a9b 100644 (file)
--- a/interface.c
+++ b/interface.c
@@ -18,6 +18,7 @@ enum {
        IFACE_ATTR_PROTO,
        IFACE_ATTR_AUTO,
        IFACE_ATTR_DEFAULTROUTE,
+       IFACE_ATTR_METRIC,
        IFACE_ATTR_MAX
 };
 
@@ -26,6 +27,7 @@ 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_METRIC] = { .name = "metric", .type = BLOBMSG_TYPE_INT32 },
 };
 
 const struct config_param_list interface_attr_list = {
@@ -120,6 +122,8 @@ __interface_set_down(struct interface *iface, bool force)
        if (iface->state == IFS_UP)
                interface_event(iface, IFEV_DOWN);
        iface->state = IFS_TEARDOWN;
+       interface_ip_flush(&iface->config_ip);
+       interface_ip_flush(&iface->proto_ip);
        interface_proto_event(iface->proto, PROTO_CMD_TEARDOWN, force);
        if (force)
                interface_flush_state(iface);
@@ -195,7 +199,7 @@ interface_claim_device(struct interface *iface)
 
 
 static void
-interface_cleanup(struct interface *iface)
+interface_cleanup(struct interface *iface, bool reload)
 {
        struct interface_user *dep, *tmp;
 
@@ -205,7 +209,8 @@ interface_cleanup(struct interface *iface)
        interface_ip_flush(&iface->config_ip);
        interface_flush_state(iface);
        interface_clear_errors(iface);
-       if (iface->main_dev.dev)
+       if (iface->main_dev.dev &&
+           (!reload || !iface->main_dev.hotplug))
                device_remove_user(&iface->main_dev);
        iface->l3_dev = &iface->main_dev;
        interface_set_proto_state(iface, NULL);
@@ -214,7 +219,7 @@ interface_cleanup(struct interface *iface)
 static void
 interface_do_free(struct interface *iface)
 {
-       interface_cleanup(iface);
+       interface_cleanup(iface, false);
        free(iface->config);
        netifd_ubus_remove_interface(iface);
        avl_delete(&interfaces.avl, &iface->node.avl);
@@ -224,7 +229,7 @@ interface_do_free(struct interface *iface)
 static void
 interface_do_reload(struct interface *iface)
 {
-       interface_cleanup(iface);
+       interface_cleanup(iface, true);
        proto_init_interface(iface, iface->config);
        interface_claim_device(iface);
 }
@@ -348,20 +353,25 @@ interface_add(struct interface *iface, struct blob_attr *config)
                iface->ifname = blobmsg_data(cur);
 
        iface->config = config;
-       vlist_add(&interfaces, &iface->node);
+       vlist_add(&interfaces, &iface->node, iface->name);
 }
 
-void
+int
 interface_remove_link(struct interface *iface, struct device *dev)
 {
        struct device *mdev = iface->main_dev.dev;
 
-       if (mdev && mdev->hotplug_ops) {
-               mdev->hotplug_ops->del(mdev, dev);
-               return;
-       }
+       if (mdev && mdev->hotplug_ops)
+               return mdev->hotplug_ops->del(mdev, dev);
+
+       if (!iface->main_dev.hotplug)
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       if (dev != iface->main_dev.dev)
+               return UBUS_STATUS_INVALID_ARGUMENT;
 
        device_remove_user(&iface->main_dev);
+       return 0;
 }
 
 int
@@ -369,14 +379,21 @@ interface_add_link(struct interface *iface, struct device *dev)
 {
        struct device *mdev = iface->main_dev.dev;
 
-       if (mdev && mdev->hotplug_ops)
-               return mdev->hotplug_ops->add(mdev, dev);
+       if (mdev == dev)
+               return 0;
 
-       if (iface->main_dev.dev)
-               interface_remove_link(iface, NULL);
+       if (iface->main_dev.hotplug)
+               device_remove_user(&iface->main_dev);
 
-       device_add_user(&iface->main_dev, dev);
+       if (mdev) {
+               if (mdev->hotplug_ops)
+                       return mdev->hotplug_ops->add(mdev, dev);
+               else
+                       return UBUS_STATUS_NOT_SUPPORTED;
+       }
 
+       device_add_user(&iface->main_dev, dev);
+       iface->main_dev.hotplug = true;
        return 0;
 }
 
@@ -501,11 +518,21 @@ interface_change_config(struct interface *if_old, struct interface *if_new)
                goto reload;
        }
 
-       if (if_old->proto_ip.no_defaultroute != if_new->proto_ip.no_defaultroute) {
-               if_old->proto_ip.no_defaultroute = if_new->proto_ip.no_defaultroute;
-               interface_ip_set_enabled(&if_old->proto_ip, if_old->proto_ip.enabled);
+#define UPDATE(field) ({                                               \
+               bool __changed = (if_old->field != if_new->field);      \
+               if_old->field = if_new->field;                          \
+               __changed;                                              \
+       })
+
+       if (UPDATE(metric) || UPDATE(proto_ip.no_defaultroute)) {
+               interface_ip_set_enabled(&if_old->config_ip, false);
+               interface_ip_set_enabled(&if_old->config_ip, if_new->config_ip.enabled);
+               interface_ip_set_enabled(&if_old->proto_ip, false);
+               interface_ip_set_enabled(&if_old->proto_ip, if_new->proto_ip.enabled);
        }
 
+#undef UPDATE
+
        goto out;
 
 reload:
@@ -540,8 +567,7 @@ interface_update(struct vlist_tree *tree, struct vlist_node *node_new,
 static void __init
 interface_init_list(void)
 {
-       vlist_init(&interfaces, avl_strcmp, interface_update,
-                  struct interface, node, name);
+       vlist_init(&interfaces, avl_strcmp, interface_update);
        interfaces.keep_old = true;
        interfaces.no_delete = true;
 }