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/*
* This file is part of net-yy-netlink strace test.
*
* Copyright (c) 2013-2017 Dmitry V. Levin <ldv@strace.io>
* Copyright (c) 2016 Fabien Siron <fabien.siron@epita.fr>
* Copyright (c) 2016-2020 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include "netlink.h"
#include <linux/sock_diag.h>
#include <linux/netlink_diag.h>
#ifndef PRINT_SOCK
# define PRINT_SOCK 2
#endif
#if PRINT_SOCK == 2
# define FMT_UNBOUND "<NETLINK:[%lu]>"
# define FMT_BOUND "<NETLINK:[SOCK_DIAG:%u]>"
# define ARG_UNBOUND inode
# define ARG_BOUND addr.nl_pid
#elif PRINT_SOCK == 1
# define FMT_UNBOUND "<socket:[%lu]>"
# define FMT_BOUND "<socket:[%lu]>"
# define ARG_UNBOUND inode
# define ARG_BOUND inode
#else
# define FMT_UNBOUND "%s"
# define FMT_BOUND "%s"
# define ARG_UNBOUND ""
# define ARG_BOUND ""
#endif
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
struct sockaddr_nl addr = {
.nl_family = AF_NETLINK,
.nl_pid = getpid()
};
struct sockaddr *const sa = tail_memdup(&addr, sizeof(addr));
TAIL_ALLOC_OBJECT_CONST_PTR(socklen_t, len);
*len = sizeof(addr);
const int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
if (fd < 0)
perror_msg_and_skip("socket");
#if PRINT_SOCK
const unsigned long inode = inode_of_sockfd(fd);
#endif
printf("socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG) = "
"%d" FMT_UNBOUND "\n", fd, ARG_UNBOUND);
if (bind(fd, sa, *len))
perror_msg_and_skip("bind");
printf("bind(%d" FMT_UNBOUND ", {sa_family=AF_NETLINK"
", nl_pid=%d, nl_groups=00000000}, %u) = 0\n",
fd, ARG_UNBOUND, addr.nl_pid, (unsigned) *len);
if (getsockname(fd, sa, len))
perror_msg_and_fail("getsockname");
printf("getsockname(%d" FMT_BOUND ", {sa_family=AF_NETLINK"
", nl_pid=%d, nl_groups=00000000}, [%u]) = 0\n",
fd, ARG_BOUND, addr.nl_pid, (unsigned) *len);
if (close(fd))
perror_msg_and_fail("close");
printf("close(%d" FMT_BOUND ") = 0\n", fd, ARG_BOUND);
puts("+++ exited with 0 +++");
return 0;
}
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