afalgtest.c revision 1.1.1.1 
1/*
2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stdio.h>
11#include <openssl/opensslconf.h>
12
13#ifndef OPENSSL_NO_AFALGENG
14# include <linux/version.h>
15# define K_MAJ   4
16# define K_MIN1  1
17# define K_MIN2  0
18# if LINUX_VERSION_CODE < KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2)
19/*
20 * If we get here then it looks like there is a mismatch between the linux
21 * headers and the actual kernel version, so we have tried to compile with
22 * afalg support, but then skipped it in e_afalg.c. As far as this test is
23 * concerned we behave as if we had been configured without support
24 */
25#  define OPENSSL_NO_AFALGENG
26# endif
27#endif
28
29#ifndef OPENSSL_NO_AFALGENG
30#include <string.h>
31#include <openssl/engine.h>
32#include <openssl/evp.h>
33#include <openssl/rand.h>
34
35/* Use a buffer size which is not aligned to block size */
36#define BUFFER_SIZE     (8 * 1024) - 13
37
38static int test_afalg_aes_128_cbc(ENGINE *e)
39{
40    EVP_CIPHER_CTX *ctx;
41    const EVP_CIPHER *cipher = EVP_aes_128_cbc();
42    unsigned char key[] = "\x5F\x4D\xCC\x3B\x5A\xA7\x65\xD6\
43                           \x1D\x83\x27\xDE\xB8\x82\xCF\x99";
44    unsigned char iv[] = "\x2B\x95\x99\x0A\x91\x51\x37\x4A\
45                          \xBD\x8F\xF8\xC5\xA7\xA0\xFE\x08";
46
47    unsigned char in[BUFFER_SIZE];
48    unsigned char ebuf[BUFFER_SIZE + 32];
49    unsigned char dbuf[BUFFER_SIZE + 32];
50    int encl, encf, decl, decf;
51    unsigned int status = 0;
52
53    ctx = EVP_CIPHER_CTX_new();
54    if (ctx == NULL) {
55        fprintf(stderr, "%s() failed to allocate ctx\n", __func__);
56        return 0;
57    }
58    RAND_bytes(in, BUFFER_SIZE);
59
60    if (       !EVP_CipherInit_ex(ctx, cipher, e, key, iv, 1)
61            || !EVP_CipherUpdate(ctx, ebuf, &encl, in, BUFFER_SIZE)
62            || !EVP_CipherFinal_ex(ctx, ebuf+encl, &encf)) {
63        fprintf(stderr, "%s() failed encryption\n", __func__);
64        goto end;
65    }
66    encl += encf;
67
68    if (       !EVP_CIPHER_CTX_reset(ctx)
69            || !EVP_CipherInit_ex(ctx, cipher, e, key, iv, 0)
70            || !EVP_CipherUpdate(ctx, dbuf, &decl, ebuf, encl)
71            || !EVP_CipherFinal_ex(ctx, dbuf+decl, &decf)) {
72        fprintf(stderr, "%s() failed decryption\n", __func__);
73        goto end;
74    }
75    decl += decf;
76
77    if (       decl != BUFFER_SIZE
78            || memcmp(dbuf, in, BUFFER_SIZE)) {
79        fprintf(stderr, "%s() failed Dec(Enc(P)) != P\n", __func__);
80        goto end;
81    }
82
83    status = 1;
84
85 end:
86    EVP_CIPHER_CTX_free(ctx);
87    return status;
88}
89
90int main(int argc, char **argv)
91{
92    ENGINE *e;
93
94    CRYPTO_set_mem_debug(1);
95    CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
96
97    ENGINE_load_builtin_engines();
98
99# ifndef OPENSSL_NO_STATIC_ENGINE
100    OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_AFALG, NULL);
101# endif
102
103    e = ENGINE_by_id("afalg");
104    if (e == NULL) {
105        /*
106         * A failure to load is probably a platform environment problem so we
107         * don't treat this as an OpenSSL test failure, i.e. we return 0
108         */
109        fprintf(stderr,
110                "AFALG Test: Failed to load AFALG Engine - skipping test\n");
111        return 0;
112    }
113
114    if (test_afalg_aes_128_cbc(e) == 0) {
115        ENGINE_free(e);
116        return 1;
117    }
118
119    ENGINE_free(e);
120    printf("PASS\n");
121    return 0;
122}
123
124#else  /* OPENSSL_NO_AFALGENG */
125
126int main(int argc, char **argv)
127{
128    fprintf(stderr, "AFALG not supported - skipping AFALG tests\n");
129    printf("PASS\n");
130    return 0;
131}
132
133#endif
134