1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 * Copyright (c) 2017 Petr Vorel <pvorel@suse.cz>
5 * Copyright (c) Linux Test Project, 2005-2022
6 * Author: David L Stevens
7 */
8
9 /*\
10 * [Description]
11 *
12 * Verify that in6 and sockaddr fields are present.
13 */
14
15 #include <errno.h>
16 #include <arpa/inet.h>
17 #include <netinet/in.h>
18 #include <sys/socket.h>
19
20 #include "tst_test.h"
21 #include "tst_safe_macros.h"
22
23 static struct {
24 char *addr;
25 int ismap;
26 } maptab[] = {
27 { "2002::1", 0 },
28 { "::ffff:10.0.0.1", 1 },
29 { "::fffe:10.0.0.1", 0 },
30 { "::7fff:10.0.0.1", 0 },
31 { "0:0:0:0:0:0:ffff:a001", 0 },
32 { "0:0:1:0:0:0:ffff:a001", 0 },
33 };
34
35 static struct {
36 char *addr;
37 } sstab[] = {
38 { "2002::1" },
39 { "10.0.0.1" },
40 { "::ffff:10.0.0.1" },
41 { "::1" },
42 { "::" },
43 };
44
45 static void test_in6_addr(void);
46 static void test_sockaddr_in6(void);
47 static void test_global_in6_def(void);
48 static void test_in6_is_addr_v4mapped(void);
49 static void test_sockaddr_storage(void);
50
51 static void (*testfunc[])(void) = { test_in6_addr,
52 test_sockaddr_in6, test_global_in6_def,
53 test_in6_is_addr_v4mapped, test_sockaddr_storage };
54
55 /* struct in6_addr tests */
test_in6_addr(void)56 static void test_in6_addr(void)
57 {
58 uint8_t ui8 = 1;
59 struct in6_addr in6;
60
61 in6.s6_addr[0] = ui8;
62 tst_res(TINFO, "type of in6.s6_addr[0] is uint8_t");
63 if (sizeof(in6.s6_addr) != 16)
64 tst_res(TFAIL, "sizeof(in6.s6_addr) != 16");
65 else
66 tst_res(TPASS, "sizeof(in6.s6_addr) == 16");
67 }
68
69 /* struct sockaddr_in6 tests */
test_sockaddr_in6(void)70 static void test_sockaddr_in6(void)
71 {
72 uint8_t ui8 = 1;
73 uint32_t ui16 = 2;
74 uint32_t ui32 = 3;
75 struct in6_addr in6;
76 struct sockaddr_in6 sin6;
77 int sd;
78
79 in6.s6_addr[0] = ui8;
80 sin6.sin6_family = AF_INET6;
81 sin6.sin6_port = ui16;
82 sin6.sin6_flowinfo = ui32;
83 sin6.sin6_addr = in6;
84 sin6.sin6_scope_id = ui32;
85
86 sd = SAFE_SOCKET(AF_INET6, SOCK_STREAM, 0);
87 bind(sd, (struct sockaddr *)&sin6, sizeof(sin6));
88 SAFE_CLOSE(sd);
89
90 tst_res(TPASS, "all sockaddr_in6 fields present and correct");
91 }
92
93 /* initializers and global in6 definitions tests */
test_global_in6_def(void)94 static void test_global_in6_def(void)
95 {
96 struct in6_addr ina6 = IN6ADDR_ANY_INIT;
97 struct in6_addr inl6 = IN6ADDR_LOOPBACK_INIT;
98
99 tst_res(TINFO, "IN6ADDR_ANY_INIT present");
100 if (memcmp(&ina6, &in6addr_any, sizeof(ina6)) == 0)
101 tst_res(TINFO, "in6addr_any present and correct");
102 else {
103 tst_res(TFAIL, "in6addr_any incorrect value");
104 return;
105 }
106
107 tst_res(TINFO, "IN6ADDR_LOOPBACK_INIT present");
108 if (memcmp(&inl6, &in6addr_loopback, sizeof(inl6)) == 0)
109 tst_res(TINFO, "in6addr_loopback present and correct");
110 else {
111 tst_res(TFAIL, "in6addr_loopback incorrect value");
112 return;
113 }
114
115 if (inet_pton(AF_INET6, "::1", &inl6) <= 0)
116 tst_brk(TBROK | TERRNO, "inet_pton(\"::1\")");
117
118 if (memcmp(&inl6, &in6addr_loopback, sizeof(inl6)) == 0)
119 tst_res(TINFO, "in6addr_loopback in network byte order");
120 else {
121 tst_res(TFAIL, "in6addr_loopback has wrong byte order");
122 return;
123 }
124
125 tst_res(TPASS, "global in6 definitions tests succeed");
126 }
127
128 /* IN6_IS_ADDR_V4MAPPED tests */
test_in6_is_addr_v4mapped(void)129 static void test_in6_is_addr_v4mapped(void)
130 {
131 unsigned int i;
132 struct in6_addr in6;
133
134 for (i = 0; i < ARRAY_SIZE(maptab); ++i) {
135 if (inet_pton(AF_INET6, maptab[i].addr, &in6) <= 0)
136 tst_brk(TBROK | TERRNO,
137 "\"%s\" is not a valid IPv6 address",
138 maptab[i].addr);
139 TEST(IN6_IS_ADDR_V4MAPPED(in6.s6_addr));
140 if (maptab[i].ismap == TST_RET)
141 tst_res(TINFO, "IN6_IS_ADDR_V4MAPPED(\"%s\") %ld",
142 maptab[i].addr, TST_RET);
143 else {
144 tst_res(TFAIL, "IN6_IS_ADDR_V4MAPPED(\"%s\") %ld",
145 maptab[i].addr, TST_RET);
146 return;
147 }
148 }
149
150 tst_res(TPASS, "IN6_IS_ADDR_V4MAPPED tests succeed");
151 }
152
153 /* sockaddr_storage tests */
test_sockaddr_storage(void)154 static void test_sockaddr_storage(void)
155 {
156 unsigned int i;
157 struct sockaddr_storage ss;
158
159 if (sizeof(ss) <= sizeof(struct sockaddr_in) ||
160 sizeof(ss) <= sizeof(struct sockaddr_in6))
161 tst_brk(TBROK, "sockaddr_storage too small");
162
163 for (i = 0; i < ARRAY_SIZE(sstab); ++i) {
164 struct sockaddr_in *psin = (struct sockaddr_in *)&ss;
165 struct sockaddr_in6 *psin6 = (struct sockaddr_in6 *)&ss;
166 int rv;
167 uint8_t af;
168
169 af = psin->sin_family = AF_INET;
170 rv = inet_pton(AF_INET, sstab[i].addr, &psin->sin_addr);
171 if (rv == 0) {
172 af = psin6->sin6_family = AF_INET6;
173 rv = inet_pton(AF_INET6, sstab[i].addr,
174 &psin6->sin6_addr);
175 }
176 if (rv <= 0)
177 tst_brk(TBROK,
178 "\"%s\" is not a valid address", sstab[i].addr);
179 if (ss.ss_family == af)
180 tst_res(TINFO, "\"%s\" is AF_INET%s",
181 sstab[i].addr, af == AF_INET ? "" : "6");
182 else
183 tst_res(TFAIL, "\"%s\" ss_family (%d) != AF_INET%s",
184 sstab[i].addr, af, af == AF_INET ? "" : "6");
185 }
186
187 tst_res(TPASS, "sockaddr_storage tests succeed");
188 }
189
do_test(unsigned int i)190 static void do_test(unsigned int i)
191 {
192 testfunc[i]();
193 }
194
195 static struct tst_test test = {
196 .tcnt = ARRAY_SIZE(testfunc),
197 .test = do_test,
198 };
199