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1 /*
2  *
3  *   Copyright (c) International Business Machines  Corp., 2001
4  *   Author: David L Stevens
5  *
6  *   This program is free software;  you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
14  *   the GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program;  if not, write to the Free Software Foundation,
18  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 /*
21  *   Description:
22  *     Verify that in6 and sockaddr fields are present. Most of these are
23  *     "PASS" if they just compile.
24  */
25 
26 #include <stdio.h>
27 #include <unistd.h>
28 #include <errno.h>
29 
30 #include <netinet/in.h>
31 #include <arpa/inet.h>
32 
33 #include "test.h"
34 
35 static struct {
36 	char *addr;
37 	int ismap;
38 } maptab[] = {
39 	{ "2002::1", 0 },
40 	{ "::ffff:10.0.0.1", 1 },
41 	{ "::fffe:10.0.0.1", 0 },
42 	{ "::7fff:10.0.0.1", 0 },
43 	{ "0:0:0:0:0:0:ffff:0a001", 0 },
44 	{ "0:0:1:0:0:0:ffff:0a001", 0 },
45 };
46 
47 #define MAPSIZE (sizeof(maptab)/sizeof(maptab[0]))
48 
49 static struct {
50 	char *addr;
51 } sstab[] = {
52 	{ "2002::1" },
53 	{ "10.0.0.1" },
54 	{ "::ffff:10.0.0.1" },
55 	{ "::1" },
56 	{ "::" },
57 };
58 
59 #define SSSIZE (sizeof(sstab)/sizeof(sstab[0]))
60 
61 static void setup(void);
62 static void test_in6_addr(void);
63 static void test_sockaddr_in6(void);
64 static void test_global_in6_def(void);
65 static void test_in6_is_addr_v4mapped(void);
66 static void test_sockaddr_storage(void);
67 
68 static void (*testfunc[])(void) = { test_in6_addr,
69 	test_sockaddr_in6, test_global_in6_def,
70 	test_in6_is_addr_v4mapped, test_sockaddr_storage };
71 
72 char *TCID = "in6_01";
73 int TST_TOTAL = ARRAY_SIZE(testfunc);
74 
main(int argc,char * argv[])75 int main(int argc, char *argv[])
76 {
77 	int lc;
78 	int i;
79 
80 	tst_parse_opts(argc, argv, NULL, NULL);
81 
82 	setup();
83 
84 	for (lc = 0; TEST_LOOPING(lc); lc++) {
85 		tst_count = 0;
86 
87 		for (i = 0; i < TST_TOTAL; i++)
88 			(*testfunc[i])();
89 	}
90 
91 	tst_exit();
92 }
93 
setup(void)94 static void setup(void)
95 {
96 	TEST_PAUSE;
97 }
98 
99 /* struct in6_addr tests */
test_in6_addr(void)100 static void test_in6_addr(void)
101 {
102 	uint8_t ui8 = 1;
103 	struct in6_addr in6;
104 
105 	in6.s6_addr[0] = ui8;
106 	tst_resm(TINFO, "type of in6.s6_addr[0] is uint8_t");
107 	if (sizeof(in6.s6_addr) != 16)
108 		tst_resm(TFAIL, "sizeof(in6.s6_addr) != 16");
109 	else
110 		tst_resm(TPASS, "sizeof(in6.s6_addr) == 16");
111 }
112 
113 /* struct sockaddr_in6 tests */
test_sockaddr_in6(void)114 static void test_sockaddr_in6(void)
115 {
116 	uint8_t ui8 = 1;
117 	uint32_t ui16 = 2;
118 	uint32_t ui32 = 3;
119 	struct in6_addr in6;
120 	struct sockaddr_in6 sin6;
121 
122 	in6.s6_addr[0] = ui8;
123 	sin6.sin6_family = AF_INET6;
124 	sin6.sin6_port = ui16;
125 	sin6.sin6_flowinfo = ui32;
126 	sin6.sin6_addr = in6;
127 	sin6.sin6_scope_id = ui32;
128 	tst_resm(TPASS, "all sockaddr_in6 fields present and correct");
129 }
130 
131 /* initializers and global in6 definitions tests */
test_global_in6_def(void)132 static void test_global_in6_def(void)
133 {
134 	struct in6_addr ina6 = IN6ADDR_ANY_INIT;
135 	struct in6_addr inl6 = IN6ADDR_LOOPBACK_INIT;
136 
137 	tst_resm(TINFO, "IN6ADDR_ANY_INIT present");
138 	if (memcmp(&ina6, &in6addr_any, sizeof(ina6)) == 0) {
139 		tst_resm(TINFO, "in6addr_any present and correct");
140 	} else {
141 		tst_resm(TFAIL, "in6addr_any incorrect value");
142 		return;
143 	}
144 
145 	tst_resm(TINFO, "IN6ADDR_LOOPBACK_INIT present");
146 	if (memcmp(&inl6, &in6addr_loopback, sizeof(inl6)) == 0) {
147 		tst_resm(TINFO, "in6addr_loopback present and correct");
148 	} else {
149 		tst_resm(TFAIL, "in6addr_loopback incorrect value");
150 		return;
151 	}
152 	if (inet_pton(AF_INET6, "::1", &inl6) <= 0)
153 		tst_brkm(TBROK | TERRNO, NULL, "inet_pton(\"::1\")");
154 	if (memcmp(&inl6, &in6addr_loopback, sizeof(inl6)) == 0) {
155 		tst_resm(TINFO, "in6addr_loopback in network byte order");
156 	} else {
157 		tst_resm(TFAIL, "in6addr_loopback has wrong byte order");
158 		return;
159 	}
160 
161 	tst_resm(TPASS, "global in6 definitions tests succeed");
162 }
163 
164 /* IN6_IS_ADDR_V4MAPPED tests */
test_in6_is_addr_v4mapped(void)165 static void test_in6_is_addr_v4mapped(void)
166 {
167 	unsigned int i;
168 	struct in6_addr in6;
169 
170 	for (i = 0; i < MAPSIZE; ++i) {
171 		if (inet_pton(AF_INET6, maptab[i].addr, &in6) <= 0) {
172 			tst_brkm(TBROK | TERRNO, NULL,
173 				"\"%s\" is not a valid IPv6 address",
174 				maptab[i].addr);
175 		}
176 		TEST(IN6_IS_ADDR_V4MAPPED(in6.s6_addr));
177 		if (TEST_RETURN == maptab[i].ismap) {
178 			tst_resm(TINFO, "IN6_IS_ADDR_V4MAPPED(\"%s\") %ld",
179 				maptab[i].addr, TEST_RETURN);
180 		} else {
181 			tst_resm(TFAIL, "IN6_IS_ADDR_V4MAPPED(\"%s\") %ld",
182 				maptab[i].addr, TEST_RETURN);
183 			return;
184 		}
185 	}
186 
187 	tst_resm(TPASS, "IN6_IS_ADDR_V4MAPPED tests succeed");
188 }
189 
190 /* sockaddr_storage tests */
test_sockaddr_storage(void)191 static void test_sockaddr_storage(void)
192 {
193 	unsigned int i;
194 	struct sockaddr_storage ss;
195 
196 	if (sizeof(ss) <= sizeof(struct sockaddr_in) ||
197 		sizeof(ss) <= sizeof(struct sockaddr_in6))
198 		tst_brkm(TBROK, NULL, "sockaddr_storage too small");
199 
200 	for (i = 0; i < SSSIZE; ++i) {
201 		struct sockaddr_in *psin = (struct sockaddr_in *)&ss;
202 		struct sockaddr_in6 *psin6 = (struct sockaddr_in6 *)&ss;
203 		int rv;
204 		uint8_t af;
205 
206 		af = psin->sin_family = AF_INET;
207 		rv = inet_pton(AF_INET, sstab[i].addr, &psin->sin_addr);
208 		if (rv == 0) {
209 			af = psin6->sin6_family = AF_INET6;
210 			rv = inet_pton(AF_INET6, sstab[i].addr,
211 				&psin6->sin6_addr);
212 		}
213 		if (rv <= 0) {
214 			tst_brkm(TBROK, NULL,
215 				"\"%s\" is not a valid address", sstab[i].addr);
216 		}
217 		if (ss.ss_family == af) {
218 			tst_resm(TINFO, "\"%s\" is AF_INET%s",
219 				sstab[i].addr, af == AF_INET ? "" : "6");
220 		} else {
221 			tst_resm(TFAIL, "\"%s\" ss_family (%d) != AF_INET%s",
222 				sstab[i].addr, af, af == AF_INET ? "" : "6");
223 		}
224 	}
225 
226 	tst_resm(TPASS, "sockaddr_storage tests succeed");
227 }
228