1 /*
2 * netlink attribute ifinfomsg common code.
3 *
4 * Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
5 * Copyright (c) 2017-2018 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #ifndef STRACE_TESTS_NLATTR_IFLA_H
32 #define STRACE_TESTS_NLATTR_IFLA_H
33
34 #include "tests.h"
35
36 #ifndef IFLA_ATTR
37 # error "Please define IFLA_ATTR before including this file"
38 #endif
39
40 static const unsigned int hdrlen = sizeof(struct ifinfomsg);
41
42 static void
init_ifinfomsg(struct nlmsghdr * const nlh,const unsigned int msg_len)43 init_ifinfomsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
44 {
45 SET_STRUCT(struct nlmsghdr, nlh,
46 .nlmsg_len = msg_len,
47 .nlmsg_type = RTM_GETLINK,
48 .nlmsg_flags = NLM_F_DUMP
49 );
50
51 struct ifinfomsg *const msg = NLMSG_DATA(nlh);
52 SET_STRUCT(struct ifinfomsg, msg,
53 .ifi_family = AF_UNIX,
54 .ifi_type = ARPHRD_LOOPBACK,
55 .ifi_index = ifindex_lo(),
56 .ifi_flags = IFF_UP,
57 );
58
59 struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg));
60 SET_STRUCT(struct nlattr, nla,
61 .nla_len = msg_len - NLMSG_SPACE(hdrlen),
62 .nla_type = IFLA_ATTR
63 );
64 }
65
66 static void
print_ifinfomsg(const unsigned int msg_len)67 print_ifinfomsg(const unsigned int msg_len)
68 {
69 printf("{len=%u, type=RTM_GETLINK, flags=NLM_F_DUMP"
70 ", seq=0, pid=0}, {ifi_family=AF_UNIX"
71 ", ifi_type=ARPHRD_LOOPBACK"
72 ", ifi_index=" IFINDEX_LO_STR
73 ", ifi_flags=IFF_UP, ifi_change=0}"
74 ", {{nla_len=%u, nla_type=" STRINGIFY_VAL(IFLA_ATTR) "}",
75 msg_len, msg_len - NLMSG_SPACE(hdrlen));
76 }
77
78 #endif /* STRACE_TESTS_NLATTR_IFLA_H */
79