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 #include <stdio.h>
32 #include "test_nlattr.h"
33 #ifdef HAVE_LINUX_NEIGHBOUR_H
34 # include <linux/neighbour.h>
35 #endif
36 #include <linux/rtnetlink.h>
37
38 #define NDTA_PARMS 6
39 #define NDTPA_IFINDEX 1
40
41 static void
init_ndtmsg(struct nlmsghdr * const nlh,const unsigned int msg_len)42 init_ndtmsg(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_GETNEIGHTBL,
47 .nlmsg_flags = NLM_F_DUMP
48 );
49
50 struct ndtmsg *const msg = NLMSG_DATA(nlh);
51 SET_STRUCT(struct ndtmsg, msg,
52 .ndtm_family = AF_NETLINK
53 );
54 }
55
56 static void
print_ndtmsg(const unsigned int msg_len)57 print_ndtmsg(const unsigned int msg_len)
58 {
59 printf("{len=%u, type=RTM_GETNEIGHTBL, flags=NLM_F_DUMP"
60 ", seq=0, pid=0}, {ndtm_family=AF_NETLINK}",
61 msg_len);
62 }
63
64 int
main(void)65 main(void)
66 {
67 skip_if_unavailable("/proc/self/fd/");
68
69 const int fd = create_nl_socket(NETLINK_ROUTE);
70 const unsigned int hdrlen = sizeof(struct ndtmsg);
71 void *nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen), NLA_HDRLEN + 11 * 8);
72
73 static char pattern[4096];
74 fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
75
76 const unsigned int nla_type = 0xffff & NLA_TYPE_MASK;
77 char nla_type_str[256];
78 sprintf(nla_type_str, "%#x /* NDTA_??? */", nla_type);
79 TEST_NLATTR_(fd, nlh0, hdrlen,
80 init_ndtmsg, print_ndtmsg,
81 nla_type, nla_type_str,
82 4, pattern, 4,
83 print_quoted_hex(pattern, 4));
84
85 #ifdef HAVE_STRUCT_NDT_CONFIG
86 static const struct ndt_config ndtc = {
87 .ndtc_key_len = 0xabcd,
88 .ndtc_entry_size = 0xbcda,
89 .ndtc_entries = 0xcdabedad,
90 .ndtc_last_flush = 0xdebaedba,
91 .ndtc_last_rand = 0xedadedab,
92 .ndtc_hash_rnd = 0xfeadedaf,
93 .ndtc_hash_mask = 0xadbcdead,
94 .ndtc_hash_chain_gc = 0xbdaedacd,
95 .ndtc_proxy_qlen = 0xcdeaedab
96 };
97 TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
98 init_ndtmsg, print_ndtmsg,
99 NDTA_CONFIG, pattern, ndtc,
100 PRINT_FIELD_U("{", ndtc, ndtc_key_len);
101 PRINT_FIELD_U(", ", ndtc, ndtc_entry_size);
102 PRINT_FIELD_U(", ", ndtc, ndtc_entries);
103 PRINT_FIELD_U(", ", ndtc, ndtc_last_flush);
104 PRINT_FIELD_U(", ", ndtc, ndtc_last_rand);
105 PRINT_FIELD_U(", ", ndtc, ndtc_hash_rnd);
106 PRINT_FIELD_0X(", ", ndtc, ndtc_hash_mask);
107 PRINT_FIELD_U(", ", ndtc, ndtc_hash_chain_gc);
108 PRINT_FIELD_U(", ", ndtc, ndtc_proxy_qlen);
109 printf("}"));
110 #endif /* HAVE_STRUCT_NDT_CONFIG */
111
112 static const struct nlattr nla = {
113 .nla_len = sizeof(nla),
114 .nla_type = NDTPA_IFINDEX
115 };
116 TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
117 init_ndtmsg, print_ndtmsg,
118 NDTA_PARMS, pattern, nla,
119 PRINT_FIELD_U("{", nla, nla_len);
120 printf(", nla_type=NDTPA_IFINDEX}"));
121
122 #ifdef HAVE_STRUCT_NDT_STATS
123 static const struct ndt_stats ndtst = {
124 .ndts_allocs = 0xabcdedabedadedfa,
125 .ndts_destroys = 0xbcdefabefacdbaad,
126 .ndts_hash_grows = 0xcdbadefacdcbaede,
127 .ndts_res_failed = 0xdedbaecfdbcadcfe,
128 .ndts_lookups = 0xedfafdedbdadedec,
129 .ndts_hits = 0xfebdeadebcddeade,
130 .ndts_rcv_probes_mcast = 0xadebfeadecddeafe,
131 .ndts_rcv_probes_ucast = 0xbcdefeacdadecdfe,
132 .ndts_periodic_gc_runs = 0xedffeadedeffbecc,
133 .ndts_forced_gc_runs = 0xfeefefeabedeedcd,
134 #ifdef HAVE_STRUCT_NDT_STATS_NDTS_TABLE_FULLS
135 .ndts_table_fulls = 0xadebfefaecdfeade
136 #endif /* HAVE_STRUCT_NDT_STATS_NDTS_TABLE_FULLS */
137 };
138 TEST_NLATTR_OBJECT(fd, nlh0, hdrlen,
139 init_ndtmsg, print_ndtmsg,
140 NDTA_STATS, pattern, ndtst,
141 PRINT_FIELD_U("{", ndtst, ndts_allocs);
142 PRINT_FIELD_U(", ", ndtst, ndts_destroys);
143 PRINT_FIELD_U(", ", ndtst, ndts_hash_grows);
144 PRINT_FIELD_U(", ", ndtst, ndts_res_failed);
145 PRINT_FIELD_U(", ", ndtst, ndts_lookups);
146 PRINT_FIELD_U(", ", ndtst, ndts_hits);
147 PRINT_FIELD_U(", ", ndtst, ndts_rcv_probes_mcast);
148 PRINT_FIELD_U(", ", ndtst, ndts_rcv_probes_ucast);
149 PRINT_FIELD_U(", ", ndtst, ndts_periodic_gc_runs);
150 PRINT_FIELD_U(", ", ndtst, ndts_forced_gc_runs);
151 #ifdef HAVE_STRUCT_NDT_STATS_NDTS_TABLE_FULLS
152 PRINT_FIELD_U(", ", ndtst, ndts_table_fulls);
153 #endif /* HAVE_STRUCT_NDT_STATS_NDTS_TABLE_FULLS */
154 printf("}"));
155 #endif /* HAVE_STRUCT_NDT_STATS */
156
157 puts("+++ exited with 0 +++");
158 return 0;
159 }
160