extend the ubus interface to allow adding/removing hotplug interfaces

[project/netifd.git] / ubus.c

diff --git a/ubus.c b/ubus.c
index aa1378b..8b9bc3a 100644 (file)
--- a/ubus.c
+++ b/ubus.c
@@ -12,23 +12,25 @@ static struct blob_buf b;
 enum {
        DEV_NAME,
        DEV_FORCE,
-       DEV_LAST,
+       __DEV_MAX,
+       __DEV_MAX_NOFORCE = __DEV_MAX - 1,
 };
 
-static const struct blobmsg_policy dev_policy[] = {
+static const struct blobmsg_policy dev_policy[__DEV_MAX] = {
        [DEV_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
        [DEV_FORCE] = { .name = "force", .type = BLOBMSG_TYPE_INT8 },
 };
 
-static int netifd_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
-                               struct ubus_request_data *req, const char *method,
-                               struct blob_attr *msg)
+static int
+netifd_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
+                    struct ubus_request_data *req, const char *method,
+                    struct blob_attr *msg)
 {
        struct device *dev;
-       struct blob_attr *tb[DEV_LAST];
+       struct blob_attr *tb[__DEV_MAX];
        bool add = !strncmp(method, "add", 3);
 
-       blobmsg_parse(dev_policy, ARRAY_SIZE(dev_policy), tb, blob_data(msg), blob_len(msg));
+       blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
 
        if (!tb[DEV_NAME])
                return UBUS_STATUS_INVALID_ARGUMENT;
@@ -47,7 +49,7 @@ static int netifd_handle_device(struct ubus_context *ctx, struct ubus_object *ob
 
 static struct ubus_method main_object_methods[] = {
        UBUS_METHOD("add_device", netifd_handle_device, dev_policy),
-       UBUS_METHOD("del_device", netifd_handle_device, dev_policy),
+       UBUS_METHOD("remove_device", netifd_handle_device, dev_policy),
 };
 
 static struct ubus_object_type main_object_type =
@@ -60,7 +62,8 @@ static struct ubus_object main_object = {
        .n_methods = ARRAY_SIZE(main_object_methods),
 };
 
-int netifd_ubus_init(const char *path)
+int
+netifd_ubus_init(const char *path)
 {
        int ret;
 
@@ -79,7 +82,8 @@ int netifd_ubus_init(const char *path)
        return 0;
 }
 
-void netifd_ubus_done(void)
+void
+netifd_ubus_done(void)
 {
        ubus_free(ctx);
 }
@@ -87,9 +91,10 @@ void netifd_ubus_done(void)
 
 /* per-interface object */
 
-static int netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
-                           struct ubus_request_data *req, const char *method,
-                           struct blob_attr *msg)
+static int
+netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
+                struct ubus_request_data *req, const char *method,
+                struct blob_attr *msg)
 {
        struct interface *iface;
 
@@ -99,9 +104,10 @@ static int netifd_handle_up(struct ubus_context *ctx, struct ubus_object *obj,
        return 0;
 }
 
-static int netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
-                             struct ubus_request_data *req, const char *method,
-                             struct blob_attr *msg)
+static int
+netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
+                  struct ubus_request_data *req, const char *method,
+                  struct blob_attr *msg)
 {
        struct interface *iface;
 
@@ -111,7 +117,8 @@ static int netifd_handle_down(struct ubus_context *ctx, struct ubus_object *obj,
        return 0;
 }
 
-static void netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
+static void
+netifd_add_interface_errors(struct blob_buf *b, struct interface *iface)
 {
        struct interface_error *error;
        void *e, *e2, *e3;
@@ -135,9 +142,10 @@ static void netifd_add_interface_errors(struct blob_buf *b, struct interface *if
        blobmsg_close_array(b, e);
 }
 
-static int netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
-                               struct ubus_request_data *req, const char *method,
-                               struct blob_attr *msg)
+static int
+netifd_handle_status(struct ubus_context *ctx, struct ubus_object *obj,
+                    struct ubus_request_data *req, const char *method,
+                    struct blob_attr *msg)
 {
        static const char *iface_state[] = {
                [IFS_SETUP] = "setup",
@@ -181,18 +189,67 @@ static int netifd_handle_status(struct ubus_context *ctx, struct ubus_object *ob
        return 0;
 }
 
+static int
+netifd_iface_handle_device(struct ubus_context *ctx, struct ubus_object *obj,
+                          struct ubus_request_data *req, const char *method,
+                          struct blob_attr *msg)
+{
+       struct interface *iface;
+       struct device *dev, *main_dev;
+       struct blob_attr *tb[__DEV_MAX];
+       bool add = !strncmp(method, "add", 3);
+       int ret;
+
+       iface = container_of(obj, struct interface, ubus);
+
+       blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
+
+       if (!tb[DEV_NAME])
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       dev = device_get(blobmsg_data(tb[DEV_NAME]), add);
+       if (!dev)
+               return UBUS_STATUS_NOT_FOUND;
+
+       main_dev = iface->main_dev.dev;
+       if (!main_dev)
+               return UBUS_STATUS_NOT_FOUND;
+
+       if (main_dev == dev)
+               return UBUS_STATUS_INVALID_ARGUMENT;
+
+       if (!main_dev->hotplug_ops)
+               return UBUS_STATUS_NOT_SUPPORTED;
+
+       if (add)
+               ret = main_dev->hotplug_ops->add(main_dev, dev);
+       else
+               ret = main_dev->hotplug_ops->del(main_dev, dev);
+
+       if (ret)
+               return UBUS_STATUS_UNKNOWN_ERROR;
+
+       return 0;
+}
+
+
 
 static struct ubus_method iface_object_methods[] = {
        { .name = "up", .handler = netifd_handle_up },
        { .name = "down", .handler = netifd_handle_down },
        { .name = "status", .handler = netifd_handle_status },
+       { .name = "add_device", .handler = netifd_iface_handle_device,
+         .policy = dev_policy, .n_policy = __DEV_MAX_NOFORCE },
+       { .name = "remove_device", .handler = netifd_iface_handle_device,
+         .policy = dev_policy, .n_policy = __DEV_MAX_NOFORCE },
 };
 
 static struct ubus_object_type iface_object_type =
        UBUS_OBJECT_TYPE("netifd_iface", iface_object_methods);
 
 
-void netifd_ubus_add_interface(struct interface *iface)
+void
+netifd_ubus_add_interface(struct interface *iface)
 {
        struct ubus_object *obj = &iface->ubus;
        char *name;
@@ -213,7 +270,8 @@ void netifd_ubus_add_interface(struct interface *iface)
        }
 }
 
-void netifd_ubus_remove_interface(struct interface *iface)
+void
+netifd_ubus_remove_interface(struct interface *iface)
 {
        if (!iface->ubus.name)
                return;