?? netlink.c
字號:
/* * * 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)
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -