1 /*
2 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
3 * Copyright (c) 2017-2018 The strace developers.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include "tests.h"
30
31 #include <stdio.h>
32 #include "test_nlattr.h"
33 #include <linux/rtnetlink.h>
34
35 static void
init_tcamsg(struct nlmsghdr * const nlh,const unsigned int msg_len)36 init_tcamsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
37 {
38 SET_STRUCT(struct nlmsghdr, nlh,
39 .nlmsg_len = msg_len,
40 .nlmsg_type = RTM_GETACTION,
41 .nlmsg_flags = NLM_F_DUMP
42 );
43
44 struct tcamsg *const msg = NLMSG_DATA(nlh);
45 SET_STRUCT(struct tcamsg, msg,
46 .tca_family = AF_INET
47 );
48 }
49
50 static void
print_tcamsg(const unsigned int msg_len)51 print_tcamsg(const unsigned int msg_len)
52 {
53 printf("{len=%u, type=RTM_GETACTION, flags=NLM_F_DUMP"
54 ", seq=0, pid=0}, {tca_family=AF_INET}",
55 msg_len);
56 }
57
58 int
main(void)59 main(void)
60 {
61 skip_if_unavailable("/proc/self/fd/");
62
63 const int fd = create_nl_socket(NETLINK_ROUTE);
64 const unsigned int hdrlen = sizeof(struct tcamsg);
65 void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN + 4);
66
67 static char pattern[4096];
68 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
69
70 const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
71 char nla_type_str[256];
72 sprintf(nla_type_str, "%#x /* TCA_ACT_??? */", nla_type);
73 TEST_NLATTR_(fd, nlh0, hdrlen,
74 init_tcamsg, print_tcamsg,
75 nla_type, nla_type_str,
76 4, pattern, 4,
77 print_quoted_hex(pattern, 4));
78
79 puts("+++ exited with 0 +++");
80 return 0;
81 }
82