1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/*
* Copyright (c) 2017 JingPiao Chen <chenjingpiao@gmail.com>
* Copyright (c) 2017-2021 The strace developers.
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "tests.h"
#include <stdio.h>
#include "test_nlattr.h"
#include <linux/pkt_sched.h>
#include <linux/rtnetlink.h>
const unsigned int hdrlen = sizeof(struct tcmsg);
static void
init_tcmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
{
SET_STRUCT(struct nlmsghdr, nlh,
.nlmsg_len = msg_len,
.nlmsg_type = RTM_GETQDISC,
.nlmsg_flags = NLM_F_DUMP
);
struct tcmsg *const msg = NLMSG_DATA(nlh);
SET_STRUCT(struct tcmsg, msg,
.tcm_family = AF_UNIX,
.tcm_ifindex = ifindex_lo()
);
struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg));
SET_STRUCT(struct nlattr, nla,
.nla_len = msg_len - NLMSG_SPACE(hdrlen),
.nla_type = TCA_STAB
);
}
static void
print_tcmsg(const unsigned int msg_len)
{
printf("{nlmsg_len=%u, nlmsg_type=RTM_GETQDISC, nlmsg_flags=NLM_F_DUMP"
", nlmsg_seq=0, nlmsg_pid=0}, {tcm_family=AF_UNIX"
", tcm_ifindex=" IFINDEX_LO_STR
", tcm_handle=0, tcm_parent=0, tcm_info=0}"
", [{nla_len=%u, nla_type=TCA_STAB}",
msg_len, msg_len - NLMSG_SPACE(hdrlen));
}
static void
print_uint16(const uint16_t *p, size_t idx)
{
printf("%u", *p);
}
int
main(void)
{
skip_if_unavailable("/proc/self/fd/");
const int fd = create_nl_socket(NETLINK_ROUTE);
void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
NLA_HDRLEN + sizeof(struct tc_sizespec));
static char pattern[4096];
fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
static const struct tc_sizespec s = {
.cell_log = 0xab,
.size_log = 0xcd,
.cell_align = 0xefab,
.overhead = 0xcdadeefa,
.linklayer = 0xefbaafeb,
.mpu = 0xfebfaefb,
.mtu = 0xacdbefab,
.tsize = 0xbdeaabed
};
TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
init_tcmsg, print_tcmsg,
TCA_STAB_BASE, pattern, s,
printf("{");
PRINT_FIELD_U(s, cell_log);
printf(", ");
PRINT_FIELD_U(s, size_log);
printf(", ");
PRINT_FIELD_D(s, cell_align);
printf(", ");
PRINT_FIELD_D(s, overhead);
printf(", ");
PRINT_FIELD_U(s, linklayer);
printf(", ");
PRINT_FIELD_U(s, mpu);
printf(", ");
PRINT_FIELD_U(s, mtu);
printf(", ");
PRINT_FIELD_U(s, tsize);
printf("}"));
uint16_t data[2] = { 0xacbd, 0xefba };
TEST_NESTED_NLATTR_ARRAY(fd, nlh0, hdrlen,
init_tcmsg, print_tcmsg,
TCA_STAB_DATA, pattern, data, print_uint16);
puts("+++ exited with 0 +++");
return 0;
}
|
