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_LINUX_CRYPTOUSER_H
32 
33 # include <stdio.h>
34 # include <stdint.h>
35 # include "test_nlattr.h"
36 # include <linux/cryptouser.h>
37 
38 # define CRYPTOCFGA_REPORT_LARVAL 2
39 
40 static void
init_crypto_user_alg(struct nlmsghdr * const nlh,const unsigned int msg_len)41 init_crypto_user_alg(struct nlmsghdr *const nlh, const unsigned int msg_len)
42 {
43 	SET_STRUCT(struct nlmsghdr, nlh,
44 		.nlmsg_len = msg_len,
45 		.nlmsg_type = CRYPTO_MSG_GETALG,
46 		.nlmsg_flags = NLM_F_DUMP
47 	);
48 
49 	struct crypto_user_alg *const alg = NLMSG_DATA(nlh);
50 	SET_STRUCT(struct crypto_user_alg, alg,
51 		.cru_name = "abcd",
52 		.cru_driver_name = "efgh",
53 		.cru_module_name = "ijkl",
54 	);
55 }
56 
57 static void
print_crypto_user_alg(const unsigned int msg_len)58 print_crypto_user_alg(const unsigned int msg_len)
59 {
60 	printf("{len=%u, type=CRYPTO_MSG_GETALG"
61 	       ", flags=NLM_F_DUMP, seq=0, pid=0}"
62 	       ", {cru_name=\"abcd\", cru_driver_name=\"efgh\""
63 	       ", cru_module_name=\"ijkl\", cru_type=0"
64 	       ", cru_mask=0, cru_refcnt=0, cru_flags=0}",
65 	       msg_len);
66 }
67 
68 int
main(void)69 main(void)
70 {
71 	skip_if_unavailable("/proc/self/fd/");
72 
73 	const int fd = create_nl_socket(NETLINK_CRYPTO);
74 	const unsigned int hdrlen = sizeof(struct crypto_user_alg);
75 	/*
76 	 * There are also other structures, but they are not bigger than
77 	 * DEFAULT_STRLEN so far.
78 	 */
79 	void *const nlh0 = midtail_alloc(NLMSG_SPACE(hdrlen),
80 					 NLA_HDRLEN + DEFAULT_STRLEN);
81 
82 	static char pattern[4096];
83 	fill_memory_ex(pattern, sizeof(pattern), 'a', 'z' - 'a' + 1);
84 
85 	char *const str = tail_alloc(DEFAULT_STRLEN);
86 	fill_memory_ex(str, DEFAULT_STRLEN, '0', 10);
87 	TEST_NLATTR(fd, nlh0, hdrlen,
88 		    init_crypto_user_alg, print_crypto_user_alg,
89 		    CRYPTOCFGA_REPORT_LARVAL,
90 		    DEFAULT_STRLEN, str, DEFAULT_STRLEN,
91 		    printf("{type=\"%.*s\"...}", DEFAULT_STRLEN, str));
92 	str[DEFAULT_STRLEN - 1] = '\0';
93 	TEST_NLATTR(fd, nlh0, hdrlen,
94 		    init_crypto_user_alg, print_crypto_user_alg,
95 		    CRYPTOCFGA_REPORT_LARVAL,
96 		    DEFAULT_STRLEN, str, DEFAULT_STRLEN,
97 		    printf("{type=\"%s\"}", str));
98 
99 #ifdef HAVE_STRUCT_CRYPTO_REPORT_HASH
100 	static const struct crypto_report_hash rhash = {
101 		.type = "efgh",
102 		.blocksize = 0xabcdefdc,
103 		.digestsize = 0xfebcdacd
104 	};
105 	TEST_NLATTR_OBJECT_EX(fd, nlh0, hdrlen,
106 			      init_crypto_user_alg, print_crypto_user_alg,
107 			      CRYPTOCFGA_REPORT_HASH,
108 			      pattern, rhash, print_quoted_memory,
109 			      printf("{type=\"efgh\"");
110 			      PRINT_FIELD_U(", ", rhash, blocksize);
111 			      PRINT_FIELD_U(", ", rhash, digestsize);
112 			      printf("}"));
113 #endif
114 
115 #ifdef HAVE_STRUCT_CRYPTO_REPORT_BLKCIPHER
116 	static const struct crypto_report_blkcipher rblkcipher = {
117 		.type = "abcd",
118 		.geniv = "efgh",
119 		.blocksize = 0xabcdefac,
120 		.min_keysize = 0xfeadbcda,
121 		.max_keysize = 0xbdacdeac,
122 		.ivsize = 0xefacbdac
123 	};
124 	TEST_NLATTR_OBJECT_EX(fd, nlh0, hdrlen,
125 			      init_crypto_user_alg, print_crypto_user_alg,
126 			      CRYPTOCFGA_REPORT_BLKCIPHER,
127 			      pattern, rblkcipher, print_quoted_memory,
128 			      printf("{type=\"abcd\", geniv=\"efgh\"");
129 			      PRINT_FIELD_U(", ", rblkcipher, blocksize);
130 			      PRINT_FIELD_U(", ", rblkcipher, min_keysize);
131 			      PRINT_FIELD_U(", ", rblkcipher, max_keysize);
132 			      PRINT_FIELD_U(", ", rblkcipher, ivsize);
133 			      printf("}"));
134 #endif
135 
136 #ifdef HAVE_STRUCT_CRYPTO_REPORT_AEAD
137 	static const struct crypto_report_aead raead = {
138 		.type = "abcd",
139 		.geniv = "efgh",
140 		.blocksize = 0xbaefdbac,
141 		.maxauthsize = 0xfdbdbcda,
142 		.ivsize = 0xacbefdac
143 	};
144 	TEST_NLATTR_OBJECT_EX(fd, nlh0, hdrlen,
145 			      init_crypto_user_alg, print_crypto_user_alg,
146 			      CRYPTOCFGA_REPORT_AEAD,
147 			      pattern, raead, print_quoted_memory,
148 			      printf("{type=\"abcd\", geniv=\"efgh\"");
149 			      PRINT_FIELD_U(", ", raead, blocksize);
150 			      PRINT_FIELD_U(", ", raead, maxauthsize);
151 			      PRINT_FIELD_U(", ", raead, ivsize);
152 			      printf("}"));
153 #endif
154 
155 #ifdef HAVE_STRUCT_CRYPTO_REPORT_RNG
156 	static const struct crypto_report_rng rrng = {
157 		.type = "abcd",
158 		.seedsize = 0xabcdefac
159 	};
160 	TEST_NLATTR_OBJECT_EX(fd, nlh0, hdrlen,
161 			      init_crypto_user_alg, print_crypto_user_alg,
162 			      CRYPTOCFGA_REPORT_RNG,
163 			      pattern, rrng, print_quoted_memory,
164 			      printf("{type=\"abcd\"");
165 			      PRINT_FIELD_U(", ", rrng, seedsize);
166 			      printf("}"));
167 #endif
168 
169 #ifdef HAVE_STRUCT_CRYPTO_REPORT_CIPHER
170 	static const struct crypto_report_cipher rcipher = {
171 		.type = "abcd",
172 		.blocksize = 0xabcdefac,
173 		.min_keysize = 0xfeadbcda,
174 		.max_keysize = 0xbdacdeac,
175 	};
176 	TEST_NLATTR_OBJECT_EX(fd, nlh0, hdrlen,
177 			      init_crypto_user_alg, print_crypto_user_alg,
178 			      CRYPTOCFGA_REPORT_CIPHER,
179 			      pattern, rcipher, print_quoted_memory,
180 			      printf("{type=\"abcd\"");
181 			      PRINT_FIELD_U(", ", rcipher, blocksize);
182 			      PRINT_FIELD_U(", ", rcipher, min_keysize);
183 			      PRINT_FIELD_U(", ", rcipher, max_keysize);
184 			      printf("}"));
185 #endif
186 
187 	puts("+++ exited with 0 +++");
188 	return 0;
189 }
190 
191 #else
192 
193 SKIP_MAIN_UNDEFINED("HAVE_LINUX_CRYPTOUSER_H");
194 
195 #endif
196