From 922c169147fc6e4c4ecf94029528192636e917e7 Mon Sep 17 00:00:00 2001
From: Hans Dedecker <dedeckeh@gmail.com>
Date: Wed, 30 Jul 2014 10:56:30 +0000
Subject: [PATCH] netifd: Allow to add link devices which can be marked as non
 external

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
---
 interface.c | 14 ++++++++------
 interface.h |  3 +--
 ubus.c      | 29 +++++++++++++++++++++++------
 wireless.c  |  2 +-
 4 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/interface.c b/interface.c
index ed60959..8627d97 100644
--- a/interface.c
+++ b/interface.c
@@ -835,8 +835,8 @@ interface_remove_link(struct interface *iface, struct device *dev)
 	return 0;
 }
 
-int
-interface_add_link(struct interface *iface, struct device *dev)
+static int
+interface_add_link(struct interface *iface, struct device *dev, bool link_ext)
 {
 	struct device *mdev = iface->main_dev.dev;
 
@@ -853,21 +853,23 @@ interface_add_link(struct interface *iface, struct device *dev)
 			return UBUS_STATUS_NOT_SUPPORTED;
 	}
 
-	device_add_user(&iface->ext_dev, dev);
+	if (link_ext)
+		device_add_user(&iface->ext_dev, dev);
+
 	interface_set_main_dev(iface, dev);
 	iface->main_dev.hotplug = true;
 	return 0;
 }
 
 int
-interface_handle_link(struct interface *iface, const char *name, bool add)
+interface_handle_link(struct interface *iface, const char *name, bool add, bool link_ext)
 {
 	struct device *dev;
 	int ret;
 
 	device_lock();
 
-	dev = device_get(name, add ? 2 : 0);
+	dev = device_get(name, add ? (link_ext ? 2 : 1) : 0);
 	if (!dev) {
 		ret = UBUS_STATUS_NOT_FOUND;
 		goto out;
@@ -879,7 +881,7 @@ interface_handle_link(struct interface *iface, const char *name, bool add)
 			device_set_config(dev, &simple_device_type, iface->config);
 
 		system_if_apply_settings(dev, &dev->settings, dev->settings.flags);
-		ret = interface_add_link(iface, dev);
+		ret = interface_add_link(iface, dev, link_ext);
 	} else {
 		ret = interface_remove_link(iface, dev);
 	}
diff --git a/interface.h b/interface.h
index 1cd7e96..90087fc 100644
--- a/interface.h
+++ b/interface.h
@@ -177,9 +177,8 @@ void interface_set_l3_dev(struct interface *iface, struct device *dev);
 void interface_add_user(struct interface_user *dep, struct interface *iface);
 void interface_remove_user(struct interface_user *dep);
 
-int interface_add_link(struct interface *iface, struct device *dev);
 int interface_remove_link(struct interface *iface, struct device *dev);
-int interface_handle_link(struct interface *iface, const char *name, bool add);
+int interface_handle_link(struct interface *iface, const char *name, bool add, bool link_ext);
 
 void interface_add_error(struct interface *iface, const char *subsystem,
 			 const char *code, const char **data, int n_data);
diff --git a/ubus.c b/ubus.c
index 2522cfa..161fbe7 100644
--- a/ubus.c
+++ b/ubus.c
@@ -812,23 +812,40 @@ netifd_handle_dump(struct ubus_context *ctx, struct ubus_object *obj,
 	return 0;
 }
 
+enum {
+	DEV_LINK_NAME,
+	DEV_LINK_EXT,
+	__DEV_LINK_MAX,
+};
+
+static const struct blobmsg_policy dev_link_policy[__DEV_LINK_MAX] = {
+	[DEV_LINK_NAME] = { .name = "name", .type = BLOBMSG_TYPE_STRING },
+	[DEV_LINK_EXT] = { .name = "link-ext", .type = BLOBMSG_TYPE_BOOL },
+};
+
 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 blob_attr *tb[__DEV_MAX];
+	struct blob_attr *tb[__DEV_LINK_MAX];
+	struct blob_attr *cur;
 	struct interface *iface;
 	bool add = !strncmp(method, "add", 3);
+	bool link_ext = true;
 
 	iface = container_of(obj, struct interface, ubus);
 
-	blobmsg_parse(dev_policy, __DEV_MAX, tb, blob_data(msg), blob_len(msg));
+	blobmsg_parse(dev_link_policy, __DEV_LINK_MAX, tb, blob_data(msg), blob_len(msg));
 
-	if (!tb[DEV_NAME])
+	if (!tb[DEV_LINK_NAME])
 		return UBUS_STATUS_INVALID_ARGUMENT;
 
-	return interface_handle_link(iface, blobmsg_data(tb[DEV_NAME]), add);
+	cur = tb[DEV_LINK_EXT];
+	if (cur)
+		link_ext = !!blobmsg_get_u8(cur);
+
+	return interface_handle_link(iface, blobmsg_data(tb[DEV_LINK_NAME]), add, link_ext);
 }
 
 
@@ -919,8 +936,8 @@ static struct ubus_method iface_object_methods[] = {
 	{ .name = "status", .handler = netifd_handle_status },
 	{ .name = "prepare", .handler = netifd_handle_iface_prepare },
 	{ .name = "dump", .handler = netifd_handle_dump },
-	UBUS_METHOD("add_device", netifd_iface_handle_device, dev_policy ),
-	UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_policy ),
+	UBUS_METHOD("add_device", netifd_iface_handle_device, dev_link_policy ),
+	UBUS_METHOD("remove_device", netifd_iface_handle_device, dev_link_policy ),
 	{ .name = "notify_proto", .handler = netifd_iface_notify_proto },
 	{ .name = "remove", .handler = netifd_iface_remove },
 	{ .name = "set_data", .handler = netifd_handle_set_data },
diff --git a/wireless.c b/wireless.c
index c0f3b71..6675d6a 100644
--- a/wireless.c
+++ b/wireless.c
@@ -215,7 +215,7 @@ static void wireless_interface_handle_link(struct wireless_interface *vif, bool
 		if (!iface)
 			continue;
 
-		interface_handle_link(iface, vif->ifname, up);
+		interface_handle_link(iface, vif->ifname, up, true);
 	}
 }
 
-- 
2.30.2