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/*
* Copyright (C) 2006-2009 B.A.T.M.A.N. contributors:
*
* Thomas Lopatic, Corinna 'Elektra' Aichele, Axel Neumann, Marek Lindner, Andreas Langer
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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 Street, Fifth Floor, Boston, MA
* 02110-1301, USA
*
*/
#define LINUX
#define DRIVER_AUTHOR "Andreas Langer <an.langer@gmx.de>, Marek Lindner <lindner_marek@yahoo.de>"
#define DRIVER_DESC "batman gateway module"
#define DRIVER_DEVICE "batgat"
#include <linux/version.h> /* KERNEL_VERSION ... */
#include <linux/fs.h> /* fops ...*/
#include <linux/in.h> /* sockaddr_in */
#include <linux/net.h> /* socket */
#include <linux/string.h> /* strlen, strstr, strncmp ... */
#include <linux/ip.h> /* iphdr */
#include <linux/if_arp.h> /* ARPHRD_NONE */
#include <net/sock.h> /* sock */
#include <net/pkt_sched.h> /* class_create, class_destroy, class_device_create */
#include <linux/list.h> /* list handling */
#include <linux/etherdevice.h> /* ethernet device standard functions */
//#include <linux/netdevice.h> /* init_net */
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
#include <linux/kthread.h>
#include <linux/inetdevice.h> /* __in_dev_get_rtnl */
#else
#include <linux/if.h> /*IFNAMSIZ*/
#endif
#include <linux/proc_fs.h>
/* io controls */
#define IOCSETDEV 1
#define IOCREMDEV 2
#define TRANSPORT_PACKET_SIZE 29
#define VIP_BUFFER_SIZE 5
#define BATMAN_PORT 4306
#define TUNNEL_DATA 0x01
#define TUNNEL_IP_REQUEST 0x02
#define TUNNEL_IP_INVALID 0x03
#define TUNNEL_KEEPALIVE_REQUEST 0x04
#define TUNNEL_KEEPALIVE_REPLY 0x05
#define LEASE_TIME 1500
#define DBG(msg,args...) do { printk(KERN_DEBUG "batgat: [%s:%u] " msg "\n", __func__ ,__LINE__, ##args); } while(0)
#define PROC_ROOT_DIR "batgat"
#define PROC_FILE_CLIENTS "clients"
#ifndef REVISION_VERSION
#define REVISION_VERSION "1"
#endif
struct gw_client {
uint32_t wip_addr;
uint32_t vip_addr;
uint16_t client_port;
uint32_t last_keep_alive;
};
struct batgat_ioc_args {
char dev_name[IFNAMSIZ];
unsigned char exists;
uint32_t universal;
uint32_t ifindex;
};
struct gate_priv {
struct socket *tun_socket;
};
struct free_client_data {
struct list_head list;
struct gw_client *gw_client;
};
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