1 files changed, 126 insertions, 0 deletions
diff --git a/plugins/netlink.c b/plugins/netlink.c
new file mode 100644
index 00000000..887b51ea
--- /dev/null
+++ b/plugins/netlink.c
@@ -0,0 +1,126 @@
+/*
+ *
+ *  BlueZ - Bluetooth protocol stack for Linux
+ *
+ *  Copyright (C) 2004-2008  Marcel Holtmann <marcel@holtmann.org>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <errno.h>
+
+#include <netlink/netlink.h>
+#include <netlink/genl/genl.h>
+#include <netlink/genl/ctrl.h>
+#include <netlink/genl/family.h>
+
+#include <bluetooth/bluetooth.h>
+
+#include <glib.h>
+
+#include "plugin.h"
+#include "logging.h"
+
+static struct nl_handle *handle;
+static struct nl_cache *cache;
+static struct genl_family *family;
+
+static GIOChannel *channel;
+
+static gboolean channel_callback(GIOChannel *chan,
+					GIOCondition cond, void *user_data)
+{
+	int err;
+
+	if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL))
+		return FALSE;
+
+	debug("Message available on netlink channel");
+
+	err = nl_recvmsgs_default(handle);
+
+	return TRUE;
+}
+
+static int create_channel(int fd)
+{
+	channel = g_io_channel_unix_new(fd);
+	if (channel == NULL)
+		return -ENOMEM;
+
+	g_io_add_watch(channel, G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+						channel_callback, NULL);
+
+	return 0;
+}
+
+static int netlink_init(void)
+{
+	info("Starting experimental netlink support");
+
+	handle = nl_handle_alloc();
+	if (!handle) {
+		error("Failed to allocate netlink handle");
+		return -ENOMEM;
+	}
+
+	if (genl_connect(handle) < 0) {
+		error("Failed to connect to generic netlink");
+		nl_handle_destroy(handle);
+		return -ENOLINK;
+	}
+
+	cache = genl_ctrl_alloc_cache(handle);
+	if (!cache) {
+		error("Failed to allocate generic netlink cache");
+		return -ENOMEM;
+		nl_handle_destroy(handle);
+	}
+
+	family = genl_ctrl_search_by_name(cache, "bluetooth");
+	if (!family) {
+		error("Failed to find Bluetooth netlink family");
+		nl_cache_free(cache);
+		nl_handle_destroy(handle);
+		return -ENOENT;
+	}
+
+	if (create_channel(nl_socket_get_fd(handle)) < 0)  {
+		error("Failed to create netlink IO channel");
+		genl_family_put(family);
+		nl_cache_free(cache);
+		nl_handle_destroy(handle);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void netlink_exit(void)
+{
+	g_io_channel_unref(channel);
+
+	genl_family_put(family);
+	nl_cache_free(cache);
+	nl_handle_destroy(handle);
+}
+
+BLUETOOTH_PLUGIN_DEFINE("netlink", netlink_init, netlink_exit)