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 #ifdef HAVE_STRUCT_DCBMSG
32
33 # include <stdio.h>
34 # include "test_nlattr.h"
35 # include <linux/dcbnl.h>
36 # include <linux/rtnetlink.h>
37
38 static void
init_dcbmsg(struct nlmsghdr * const nlh,const unsigned int msg_len)39 init_dcbmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
40 {
41 SET_STRUCT(struct nlmsghdr, nlh,
42 .nlmsg_len = msg_len,
43 .nlmsg_type = RTM_GETDCB,
44 .nlmsg_flags = NLM_F_DUMP
45 );
46
47 struct dcbmsg *const msg = NLMSG_DATA(nlh);
48 SET_STRUCT(struct dcbmsg, msg,
49 .dcb_family = AF_UNIX,
50 .cmd = DCB_CMD_UNDEFINED
51 );
52 }
53
54 static void
print_dcbmsg(const unsigned int msg_len)55 print_dcbmsg(const unsigned int msg_len)
56 {
57 printf("{len=%u, type=RTM_GETDCB, flags=NLM_F_DUMP"
58 ", seq=0, pid=0}, {dcb_family=AF_UNIX"
59 ", cmd=DCB_CMD_UNDEFINED}",
60 msg_len);
61 }
62
63 int
main(void)64 main(void)
65 {
66 skip_if_unavailable("/proc/self/fd/");
67
68 const int fd = create_nl_socket(NETLINK_ROUTE);
69 const unsigned int hdrlen = sizeof(struct dcbmsg);
70 void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN + 4);
71
72 static char pattern[4096];
73 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
74
75 const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
76 char nla_type_str[256];
77 sprintf(nla_type_str, "%#x /* DCB_ATTR_??? */", nla_type);
78 TEST_NLATTR_(fd, nlh0, hdrlen,
79 init_dcbmsg, print_dcbmsg,
80 nla_type, nla_type_str,
81 4, pattern, 4,
82 print_quoted_hex(pattern, 4));
83
84 puts("+++ exited with 0 +++");
85 return 0;
86 }
87
88 #else
89
90 SKIP_MAIN_UNDEFINED("HAVE_STRUCT_DCBMSG")
91
92 #endif
93