/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Routing netlink socket interface: protocol independent part.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*
* 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.
*
* Fixes:
* Vitaly E. Lavrov RTA_OK arithmetics was wrong.
*/
#include <linux/errno.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/capability.h>
#include <linux/skbuff.h>
#include <linux/init.h>
#include <linux/security.h>
#include <linux/mutex.h>
#include <linux/if_addr.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/string.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <net/ip.h>
#include <net/protocol.h>
#include <net/arp.h>
#include <net/route.h>
#include <net/udp.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
#include <net/fib_rules.h>
#include <net/rtnetlink.h>
struct rtnl_link
{
rtnl_doit_func doit;
rtnl_dumpit_func dumpit;
};
static DEFINE_MUTEX(rtnl_mutex);
static struct sock *rtnl;
void rtnl_lock(void)
{
mutex_lock(&rtnl_mutex);
}
void __rtnl_unlock(void)
{
mutex_unlock(&rtnl_mutex);
}
void rtnl_unlock(void)
{
mutex_unlock(&rtnl_mutex);
if (rtnl && rtnl->sk_receive_queue.qlen)
rtnl->sk_data_ready(rtnl, 0);
netdev_run_todo();
}
int rtnl_trylock(void)
{
return mutex_trylock(&rtnl_mutex);
}
int rtattr_parse(struct rtattr *tb[], int maxattr, struct rtattr *rta, int len)
{
memset(tb, 0, sizeof(struct rtattr*)*maxattr);
while (RTA_OK(rta, len)) {
unsigned flavor = rta->rta_type;
if (flavor && flavor <= maxattr)
tb[flavor-1] = rta;
rta = RTA_NEXT(rta, len);
}
return 0;
}
int __rtattr_parse_nested_compat(struct r