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