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Some Linux platforms have a suitably recent kernel to support AFALG, but apparently you still can't actually create an afalg socket. This extends the afalg_chk_platform() function to additionally check whether we can create an AFALG socket. We also amend the afalgtest to not report a failure to load the engine as a test failure. A failure to load is almost certainly due to platform environmental issues, and not an OpenSSL problem. RT 4434 Reviewed-by: Andy Polyakov <appro@openssl.org>
134 lines
3.6 KiB
C
134 lines
3.6 KiB
C
/*
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* Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <stdio.h>
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#include <openssl/opensslconf.h>
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#ifndef OPENSSL_NO_AFALGENG
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# include <linux/version.h>
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# define K_MAJ 4
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# define K_MIN1 1
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# define K_MIN2 0
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# if LINUX_VERSION_CODE <= KERNEL_VERSION(K_MAJ, K_MIN1, K_MIN2)
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/*
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* If we get here then it looks like there is a mismatch between the linux
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* headers and the actual kernel version, so we have tried to compile with
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* afalg support, but then skipped it in e_afalg.c. As far as this test is
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* concerned we behave as if we had been configured without support
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*/
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# define OPENSSL_NO_AFALGENG
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# endif
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#endif
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#ifndef OPENSSL_NO_AFALGENG
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#include <string.h>
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#include <openssl/engine.h>
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#include <openssl/evp.h>
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#include <openssl/rand.h>
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/* Use a buffer size which is not aligned to block size */
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#define BUFFER_SIZE (8 * 1024) - 13
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static int test_afalg_aes_128_cbc(ENGINE *e)
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{
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EVP_CIPHER_CTX *ctx;
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const EVP_CIPHER *cipher = EVP_aes_128_cbc();
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unsigned char key[] = "\x5F\x4D\xCC\x3B\x5A\xA7\x65\xD6\
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\x1D\x83\x27\xDE\xB8\x82\xCF\x99";
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unsigned char iv[] = "\x2B\x95\x99\x0A\x91\x51\x37\x4A\
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\xBD\x8F\xF8\xC5\xA7\xA0\xFE\x08";
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unsigned char in[BUFFER_SIZE];
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unsigned char ebuf[BUFFER_SIZE + 32];
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unsigned char dbuf[BUFFER_SIZE + 32];
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int encl, encf, decl, decf;
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unsigned int status = 0;
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ctx = EVP_CIPHER_CTX_new();
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if (ctx == NULL) {
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fprintf(stderr, "%s() failed to allocate ctx\n", __func__);
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return 0;
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}
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RAND_bytes(in, BUFFER_SIZE);
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if ( !EVP_CipherInit_ex(ctx, cipher, e, key, iv, 1)
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|| !EVP_CipherUpdate(ctx, ebuf, &encl, in, BUFFER_SIZE)
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|| !EVP_CipherFinal_ex(ctx, ebuf+encl, &encf)) {
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fprintf(stderr, "%s() failed encryption\n", __func__);
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goto end;
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}
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encl += encf;
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if ( !EVP_CIPHER_CTX_reset(ctx)
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|| !EVP_CipherInit_ex(ctx, cipher, e, key, iv, 0)
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|| !EVP_CipherUpdate(ctx, dbuf, &decl, ebuf, encl)
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|| !EVP_CipherFinal_ex(ctx, dbuf+decl, &decf)) {
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fprintf(stderr, "%s() failed decryption\n", __func__);
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goto end;
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}
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decl += decf;
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if ( decl != BUFFER_SIZE
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|| memcmp(dbuf, in, BUFFER_SIZE)) {
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fprintf(stderr, "%s() failed Dec(Enc(P)) != P\n", __func__);
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goto end;
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}
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status = 1;
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end:
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EVP_CIPHER_CTX_free(ctx);
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return status;
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}
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int main(int argc, char **argv)
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{
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ENGINE *e;
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CRYPTO_set_mem_debug(1);
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CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
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ENGINE_load_builtin_engines();
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# ifndef OPENSSL_NO_STATIC_ENGINE
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OPENSSL_init_crypto(OPENSSL_INIT_ENGINE_AFALG, NULL);
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# endif
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e = ENGINE_by_id("afalg");
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if (e == NULL) {
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/*
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* A failure to load is probably a platform environment problem so we
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* don't treat this as an OpenSSL test failure, i.e. we return 0
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*/
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fprintf(stderr,
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"AFALG Test: Failed to load AFALG Engine - skipping test\n");
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return 0;
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}
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if (test_afalg_aes_128_cbc(e) == 0) {
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ENGINE_free(e);
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return 1;
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}
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ENGINE_free(e);
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printf("PASS\n");
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return 0;
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}
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#else /* OPENSSL_NO_AFALGENG */
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int main(int argc, char **argv)
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{
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fprintf(stderr, "AFALG not supported - skipping AFALG tests\n");
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printf("PASS\n");
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return 0;
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}
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#endif
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