89 lines
2.9 KiB
C
89 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
|
|
* Copyright (c) 2017-2018 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "tests.h"
|
|
#include <stdio.h>
|
|
#include <stdint.h>
|
|
#include "test_nlattr.h"
|
|
|
|
#define NLMSGERR_ATTR_COOKIE 3
|
|
|
|
static void
|
|
init_nlmsgerr(struct nlmsghdr *const nlh, const unsigned int msg_len)
|
|
{
|
|
SET_STRUCT(struct nlmsghdr, nlh,
|
|
.nlmsg_len = msg_len,
|
|
.nlmsg_type = NLMSG_ERROR,
|
|
.nlmsg_flags = NLM_F_REQUEST | NLM_F_CAPPED
|
|
);
|
|
|
|
struct nlmsgerr *const err = NLMSG_DATA(nlh);
|
|
SET_STRUCT(struct nlmsgerr, err,
|
|
.error = -13,
|
|
.msg = {
|
|
.nlmsg_len = NLMSG_HDRLEN + 4,
|
|
.nlmsg_type = NLMSG_NOOP,
|
|
.nlmsg_flags = NLM_F_REQUEST,
|
|
}
|
|
);
|
|
}
|
|
|
|
static void
|
|
print_nlmsgerr(const unsigned int msg_len)
|
|
{
|
|
printf("{len=%u, type=NLMSG_ERROR"
|
|
", flags=NLM_F_REQUEST|NLM_F_CAPPED"
|
|
", seq=0, pid=0}, {error=-EACCES"
|
|
", msg={len=%u, type=NLMSG_NOOP"
|
|
", flags=NLM_F_REQUEST, seq=0, pid=0}",
|
|
msg_len, NLMSG_HDRLEN + 4);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
skip_if_unavailable("/proc/self/fd/");
|
|
|
|
static const uint8_t cookie[] = { 0xab, 0xfe };
|
|
|
|
const int fd = create_nl_socket(NETLINK_SOCK_DIAG);
|
|
const unsigned int hdrlen = sizeof(struct nlmsgerr);
|
|
void *const nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
|
|
NLA_HDRLEN + sizeof(cookie));
|
|
|
|
TEST_NLATTR(fd, nlh0, hdrlen,
|
|
init_nlmsgerr, print_nlmsgerr,
|
|
NLMSGERR_ATTR_COOKIE,
|
|
sizeof(cookie), cookie, sizeof(cookie),
|
|
printf("[%u, %u]", cookie[0], cookie[1]);
|
|
printf("}"));
|
|
|
|
printf("+++ exited with 0 +++\n");
|
|
return 0;
|
|
}
|