1*cf84ac9aSAndroid Build Coastguard Worker /*
2*cf84ac9aSAndroid Build Coastguard Worker * Copyright (c) 2017 JingPiao Chen <[email protected]>
3*cf84ac9aSAndroid Build Coastguard Worker * Copyright (c) 2017-2018 The strace developers.
4*cf84ac9aSAndroid Build Coastguard Worker * All rights reserved.
5*cf84ac9aSAndroid Build Coastguard Worker *
6*cf84ac9aSAndroid Build Coastguard Worker * Redistribution and use in source and binary forms, with or without
7*cf84ac9aSAndroid Build Coastguard Worker * modification, are permitted provided that the following conditions
8*cf84ac9aSAndroid Build Coastguard Worker * are met:
9*cf84ac9aSAndroid Build Coastguard Worker * 1. Redistributions of source code must retain the above copyright
10*cf84ac9aSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer.
11*cf84ac9aSAndroid Build Coastguard Worker * 2. Redistributions in binary form must reproduce the above copyright
12*cf84ac9aSAndroid Build Coastguard Worker * notice, this list of conditions and the following disclaimer in the
13*cf84ac9aSAndroid Build Coastguard Worker * documentation and/or other materials provided with the distribution.
14*cf84ac9aSAndroid Build Coastguard Worker * 3. The name of the author may not be used to endorse or promote products
15*cf84ac9aSAndroid Build Coastguard Worker * derived from this software without specific prior written permission.
16*cf84ac9aSAndroid Build Coastguard Worker *
17*cf84ac9aSAndroid Build Coastguard Worker * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18*cf84ac9aSAndroid Build Coastguard Worker * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19*cf84ac9aSAndroid Build Coastguard Worker * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20*cf84ac9aSAndroid Build Coastguard Worker * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21*cf84ac9aSAndroid Build Coastguard Worker * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22*cf84ac9aSAndroid Build Coastguard Worker * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23*cf84ac9aSAndroid Build Coastguard Worker * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24*cf84ac9aSAndroid Build Coastguard Worker * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25*cf84ac9aSAndroid Build Coastguard Worker * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26*cf84ac9aSAndroid Build Coastguard Worker * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27*cf84ac9aSAndroid Build Coastguard Worker */
28*cf84ac9aSAndroid Build Coastguard Worker
29*cf84ac9aSAndroid Build Coastguard Worker #include "tests.h"
30*cf84ac9aSAndroid Build Coastguard Worker #include <stdio.h>
31*cf84ac9aSAndroid Build Coastguard Worker #include <stdint.h>
32*cf84ac9aSAndroid Build Coastguard Worker #include "test_nlattr.h"
33*cf84ac9aSAndroid Build Coastguard Worker
34*cf84ac9aSAndroid Build Coastguard Worker #define NLMSGERR_ATTR_COOKIE 3
35*cf84ac9aSAndroid Build Coastguard Worker
36*cf84ac9aSAndroid Build Coastguard Worker static void
init_nlmsgerr(struct nlmsghdr * const nlh,const unsigned int msg_len)37*cf84ac9aSAndroid Build Coastguard Worker init_nlmsgerr(struct nlmsghdr *const nlh, const unsigned int msg_len)
38*cf84ac9aSAndroid Build Coastguard Worker {
39*cf84ac9aSAndroid Build Coastguard Worker SET_STRUCT(struct nlmsghdr, nlh,
40*cf84ac9aSAndroid Build Coastguard Worker .nlmsg_len = msg_len,
41*cf84ac9aSAndroid Build Coastguard Worker .nlmsg_type = NLMSG_ERROR,
42*cf84ac9aSAndroid Build Coastguard Worker .nlmsg_flags = NLM_F_REQUEST | NLM_F_CAPPED
43*cf84ac9aSAndroid Build Coastguard Worker );
44*cf84ac9aSAndroid Build Coastguard Worker
45*cf84ac9aSAndroid Build Coastguard Worker struct nlmsgerr *const err = NLMSG_DATA(nlh);
46*cf84ac9aSAndroid Build Coastguard Worker SET_STRUCT(struct nlmsgerr, err,
47*cf84ac9aSAndroid Build Coastguard Worker .error = -13,
48*cf84ac9aSAndroid Build Coastguard Worker .msg = {
49*cf84ac9aSAndroid Build Coastguard Worker .nlmsg_len = NLMSG_HDRLEN + 4,
50*cf84ac9aSAndroid Build Coastguard Worker .nlmsg_type = NLMSG_NOOP,
51*cf84ac9aSAndroid Build Coastguard Worker .nlmsg_flags = NLM_F_REQUEST,
52*cf84ac9aSAndroid Build Coastguard Worker }
53*cf84ac9aSAndroid Build Coastguard Worker );
54*cf84ac9aSAndroid Build Coastguard Worker }
55*cf84ac9aSAndroid Build Coastguard Worker
56*cf84ac9aSAndroid Build Coastguard Worker static void
print_nlmsgerr(const unsigned int msg_len)57*cf84ac9aSAndroid Build Coastguard Worker print_nlmsgerr(const unsigned int msg_len)
58*cf84ac9aSAndroid Build Coastguard Worker {
59*cf84ac9aSAndroid Build Coastguard Worker printf("{len=%u, type=NLMSG_ERROR"
60*cf84ac9aSAndroid Build Coastguard Worker ", flags=NLM_F_REQUEST|NLM_F_CAPPED"
61*cf84ac9aSAndroid Build Coastguard Worker ", seq=0, pid=0}, {error=-EACCES"
62*cf84ac9aSAndroid Build Coastguard Worker ", msg={len=%u, type=NLMSG_NOOP"
63*cf84ac9aSAndroid Build Coastguard Worker ", flags=NLM_F_REQUEST, seq=0, pid=0}",
64*cf84ac9aSAndroid Build Coastguard Worker msg_len, NLMSG_HDRLEN + 4);
65*cf84ac9aSAndroid Build Coastguard Worker }
66*cf84ac9aSAndroid Build Coastguard Worker
67*cf84ac9aSAndroid Build Coastguard Worker int
main(void)68*cf84ac9aSAndroid Build Coastguard Worker main(void)
69*cf84ac9aSAndroid Build Coastguard Worker {
70*cf84ac9aSAndroid Build Coastguard Worker skip_if_unavailable("/proc/self/fd/");
71*cf84ac9aSAndroid Build Coastguard Worker
72*cf84ac9aSAndroid Build Coastguard Worker static const uint8_t cookie[] = { 0xab, 0xfe };
73*cf84ac9aSAndroid Build Coastguard Worker
74*cf84ac9aSAndroid Build Coastguard Worker const int fd = create_nl_socket(NETLINK_SOCK_DIAG);
75*cf84ac9aSAndroid Build Coastguard Worker const unsigned int hdrlen = sizeof(struct nlmsgerr);
76*cf84ac9aSAndroid Build Coastguard Worker void *const nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
77*cf84ac9aSAndroid Build Coastguard Worker NLA_HDRLEN + sizeof(cookie));
78*cf84ac9aSAndroid Build Coastguard Worker
79*cf84ac9aSAndroid Build Coastguard Worker TEST_NLATTR(fd, nlh0, hdrlen,
80*cf84ac9aSAndroid Build Coastguard Worker init_nlmsgerr, print_nlmsgerr,
81*cf84ac9aSAndroid Build Coastguard Worker NLMSGERR_ATTR_COOKIE,
82*cf84ac9aSAndroid Build Coastguard Worker sizeof(cookie), cookie, sizeof(cookie),
83*cf84ac9aSAndroid Build Coastguard Worker printf("[%u, %u]", cookie[0], cookie[1]);
84*cf84ac9aSAndroid Build Coastguard Worker printf("}"));
85*cf84ac9aSAndroid Build Coastguard Worker
86*cf84ac9aSAndroid Build Coastguard Worker printf("+++ exited with 0 +++\n");
87*cf84ac9aSAndroid Build Coastguard Worker return 0;
88*cf84ac9aSAndroid Build Coastguard Worker }
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