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_GNET_STATS_BASIC
32
33 # include <stdio.h>
34 # include <stddef.h>
35 # include "test_nlattr.h"
36 # include <linux/gen_stats.h>
37 # include <linux/rtnetlink.h>
38
39 const unsigned int hdrlen = sizeof(struct tcmsg);
40
41 static void
init_tcmsg(struct nlmsghdr * const nlh,const unsigned int msg_len)42 init_tcmsg(struct nlmsghdr *const nlh, const unsigned int msg_len)
43 {
44 SET_STRUCT(struct nlmsghdr, nlh,
45 .nlmsg_len = msg_len,
46 .nlmsg_type = RTM_GETQDISC,
47 .nlmsg_flags = NLM_F_DUMP
48 );
49
50 struct tcmsg *const msg = NLMSG_DATA(nlh);
51 SET_STRUCT(struct tcmsg, msg,
52 .tcm_family = AF_UNIX,
53 .tcm_ifindex = ifindex_lo()
54 );
55
56 struct nlattr *const nla = NLMSG_ATTR(nlh, sizeof(*msg));
57 SET_STRUCT(struct nlattr, nla,
58 .nla_len = msg_len - NLMSG_SPACE(hdrlen),
59 .nla_type = TCA_STATS2
60 );
61 }
62
63 static void
print_tcmsg(const unsigned int msg_len)64 print_tcmsg(const unsigned int msg_len)
65 {
66 printf("{len=%u, type=RTM_GETQDISC, flags=NLM_F_DUMP"
67 ", seq=0, pid=0}, {tcm_family=AF_UNIX"
68 ", tcm_ifindex=" IFINDEX_LO_STR
69 ", tcm_handle=0, tcm_parent=0, tcm_info=0}"
70 ", {{nla_len=%u, nla_type=TCA_STATS2}",
71 msg_len, msg_len - NLMSG_SPACE(hdrlen));
72 }
73
74 int
main(void)75 main(void)
76 {
77 skip_if_unavailable("/proc/self/fd/");
78
79 const int fd = create_nl_socket(NETLINK_ROUTE);
80 void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN + 8 * 5);
81
82 static char pattern[4096];
83 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
84
85 static const struct gnet_stats_basic sb = {
86 .bytes = 0xabcdebdafefeadeb,
87 .packets = 0xbdcdeabf
88 };
89 char buf[offsetofend(struct gnet_stats_basic, packets)];
90 memcpy(buf, &sb, sizeof(buf));
91 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
92 init_tcmsg, print_tcmsg,
93 TCA_STATS_BASIC, pattern, buf,
94 PRINT_FIELD_U("{", sb, bytes);
95 PRINT_FIELD_U(", ", sb, packets);
96 printf("}"));
97
98 #ifdef HAVE_STRUCT_GNET_STATS_RATE_EST
99 static const struct gnet_stats_rate_est est = {
100 .bps = 0xebcdaebd,
101 .pps = 0xabdceade,
102 };
103 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
104 init_tcmsg, print_tcmsg,
105 TCA_STATS_RATE_EST, pattern, est,
106 PRINT_FIELD_U("{", est, bps);
107 PRINT_FIELD_U(", ", est, pps);
108 printf("}"));
109 #endif
110
111 #ifdef HAVE_STRUCT_GNET_STATS_QUEUE
112 static const struct gnet_stats_queue qstats = {
113 .qlen = 0xabcdeabd,
114 .backlog = 0xbcdaebad,
115 .drops = 0xcdbeaedb,
116 .requeues = 0xdebaefab,
117 .overlimits = 0xefaebade
118 };
119 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
120 init_tcmsg, print_tcmsg,
121 TCA_STATS_QUEUE, pattern, qstats,
122 PRINT_FIELD_U("{", qstats, qlen);
123 PRINT_FIELD_U(", ", qstats, backlog);
124 PRINT_FIELD_U(", ", qstats, drops);
125 PRINT_FIELD_U(", ", qstats, requeues);
126 PRINT_FIELD_U(", ", qstats, overlimits);
127 printf("}"));
128 #endif
129
130 #ifdef HAVE_STRUCT_GNET_STATS_RATE_EST64
131 static const struct gnet_stats_rate_est64 est64 = {
132 .bps = 0xacbdcdefafecaebf,
133 .pps = 0xcdabeabdfeabceaf
134 };
135 TEST_NESTED_NLATTR_OBJECT(fd, nlh0, hdrlen,
136 init_tcmsg, print_tcmsg,
137 TCA_STATS_RATE_EST64, pattern, est64,
138 PRINT_FIELD_U("{", est64, bps);
139 PRINT_FIELD_U(", ", est64, pps);
140 printf("}"));
141 #endif
142
143 puts("+++ exited with 0 +++");
144 return 0;
145 }
146
147 #else
148
149 SKIP_MAIN_UNDEFINED("HAVE_STRUCT_GNET_STATS_BASIC")
150
151 #endif
152