/* Copyright (C) 2004-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _NETLINKACCESS_H

#define _NETLINKACCESS_H 1

#include <stdint.h>

#include <sys/types.h>

#include <asm/types.h>

#include <linux/netlink.h>

#include <linux/rtnetlink.h>

struct netlink_res

{

  struct netlink_res *next;

  struct nlmsghdr *nlh;

  size_t size;			/* Size of response.  */

  uint32_t seq;			/* sequential number we used.  */

};

struct netlink_handle

{

  int fd;			/* Netlink file descriptor.  */

  pid_t pid;			/* Process ID.  */

  uint32_t seq;			/* The sequence number we use currently.  */

  struct netlink_res *nlm_list;	/* Pointer to list of responses.  */

  struct netlink_res *end_ptr;	/* For faster append of new entries.  */

};

extern int __netlink_open (struct netlink_handle *h) attribute_hidden;

extern void __netlink_close (struct netlink_handle *h) attribute_hidden;

extern void __netlink_free_handle (struct netlink_handle *h)

     attribute_hidden;

extern int __netlink_request (struct netlink_handle *h, int type)

     attribute_hidden;

/* Terminate the process if RESULT is an invalid recvmsg result for

   the netlink socket FD.  */

void __netlink_assert_response (int fd, ssize_t result);

libc_hidden_proto (__netlink_assert_response)

#endif /* netlinkaccess.h */