/src/openssl111/crypto/engine/eng_openssl.c

Source (jump to first uncovered line)
/*
 * Copyright 2001-2020 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include <openssl/crypto.h>
#include "internal/cryptlib.h"
#include "crypto/engine.h"
#include <openssl/pem.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/dh.h>

#include <openssl/hmac.h>
#include <openssl/x509v3.h>

/*
 * This testing gunk is implemented (and explained) lower down. It also
 * assumes the application explicitly calls "ENGINE_load_openssl()" because
 * this is no longer automatic in ENGINE_load_builtin_engines().
 */
#define TEST_ENG_OPENSSL_RC4
#ifndef OPENSSL_NO_STDIO
# define TEST_ENG_OPENSSL_PKEY
#endif
/* #define TEST_ENG_OPENSSL_HMAC */
/* #define TEST_ENG_OPENSSL_HMAC_INIT */
/* #define TEST_ENG_OPENSSL_RC4_OTHERS */
#ifndef OPENSSL_NO_STDIO
# define TEST_ENG_OPENSSL_RC4_P_INIT
#endif
/* #define TEST_ENG_OPENSSL_RC4_P_CIPHER */
#define TEST_ENG_OPENSSL_SHA
/* #define TEST_ENG_OPENSSL_SHA_OTHERS */
/* #define TEST_ENG_OPENSSL_SHA_P_INIT */
/* #define TEST_ENG_OPENSSL_SHA_P_UPDATE */
/* #define TEST_ENG_OPENSSL_SHA_P_FINAL */

/* Now check what of those algorithms are actually enabled */
#ifdef OPENSSL_NO_RC4
# undef TEST_ENG_OPENSSL_RC4
# undef TEST_ENG_OPENSSL_RC4_OTHERS
# undef TEST_ENG_OPENSSL_RC4_P_INIT
# undef TEST_ENG_OPENSSL_RC4_P_CIPHER
#endif

static int openssl_destroy(ENGINE *e);

#ifdef TEST_ENG_OPENSSL_RC4
static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
                           const int **nids, int nid);
#endif
#ifdef TEST_ENG_OPENSSL_SHA
static int openssl_digests(ENGINE *e, const EVP_MD **digest,
                           const int **nids, int nid);
#endif

#ifdef TEST_ENG_OPENSSL_PKEY
static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id,
                                      UI_METHOD *ui_method,
                                      void *callback_data);
#endif

#ifdef TEST_ENG_OPENSSL_HMAC
static int ossl_register_hmac_meth(void);
static int ossl_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
                           const int **nids, int nid);
#endif

/* The constants used when creating the ENGINE */
static const char *engine_openssl_id = "openssl";
static const char *engine_openssl_name = "Software engine support";

/*
 * This internal function is used by ENGINE_openssl() and possibly by the
 * "dynamic" ENGINE support too
 */
static int bind_helper(ENGINE *e)
{
    if (!ENGINE_set_id(e, engine_openssl_id)
        || !ENGINE_set_name(e, engine_openssl_name)
        || !ENGINE_set_destroy_function(e, openssl_destroy)
#ifndef TEST_ENG_OPENSSL_NO_ALGORITHMS
# ifndef OPENSSL_NO_RSA
        || !ENGINE_set_RSA(e, RSA_get_default_method())
# endif
# ifndef OPENSSL_NO_DSA
        || !ENGINE_set_DSA(e, DSA_get_default_method())
# endif
# ifndef OPENSSL_NO_EC
        || !ENGINE_set_EC(e, EC_KEY_OpenSSL())
# endif
# ifndef OPENSSL_NO_DH
        || !ENGINE_set_DH(e, DH_get_default_method())
# endif
        || !ENGINE_set_RAND(e, RAND_OpenSSL())
# ifdef TEST_ENG_OPENSSL_RC4
        || !ENGINE_set_ciphers(e, openssl_ciphers)
# endif
# ifdef TEST_ENG_OPENSSL_SHA
        || !ENGINE_set_digests(e, openssl_digests)
# endif
#endif
#ifdef TEST_ENG_OPENSSL_PKEY
        || !ENGINE_set_load_privkey_function(e, openssl_load_privkey)
#endif
#ifdef TEST_ENG_OPENSSL_HMAC
        || !ossl_register_hmac_meth()
        || !ENGINE_set_pkey_meths(e, ossl_pkey_meths)
#endif
        )
        return 0;
    /*
     * If we add errors to this ENGINE, ensure the error handling is setup
     * here
     */
    /* openssl_load_error_strings(); */
    return 1;
}

static ENGINE *engine_openssl(void)
{
    ENGINE *ret = ENGINE_new();
    if (ret == NULL)
        return NULL;
    if (!bind_helper(ret)) {
        ENGINE_free(ret);
        return NULL;
    }
    return ret;
}

void engine_load_openssl_int(void)
{
    ENGINE *toadd = engine_openssl();
    if (!toadd)
        return;
    ENGINE_add(toadd);
    /*
     * If the "add" worked, it gets a structural reference. So either way, we
     * release our just-created reference.
     */
    ENGINE_free(toadd);
    ERR_clear_error();
}

/*
 * This stuff is needed if this ENGINE is being compiled into a
 * self-contained shared-library.
 */
#ifdef ENGINE_DYNAMIC_SUPPORT
static int bind_fn(ENGINE *e, const char *id)
{
    if (id && (strcmp(id, engine_openssl_id) != 0))
        return 0;
    if (!bind_helper(e))
        return 0;
    return 1;
}

IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
#endif                          /* ENGINE_DYNAMIC_SUPPORT */
#ifdef TEST_ENG_OPENSSL_RC4
/*-
 * This section of code compiles an "alternative implementation" of two modes of
 * RC4 into this ENGINE. The result is that EVP_CIPHER operation for "rc4"
 * should under normal circumstances go via this support rather than the default
 * EVP support. There are other symbols to tweak the testing;
 *    TEST_ENC_OPENSSL_RC4_OTHERS - print a one line message to stderr each time
 *        we're asked for a cipher we don't support (should not happen).
 *    TEST_ENG_OPENSSL_RC4_P_INIT - print a one line message to stderr each time
 *        the "init_key" handler is called.
 *    TEST_ENG_OPENSSL_RC4_P_CIPHER - ditto for the "cipher" handler.
 */
# include <openssl/rc4.h>
# define TEST_RC4_KEY_SIZE               16
typedef struct {
    unsigned char key[TEST_RC4_KEY_SIZE];
    RC4_KEY ks;
} TEST_RC4_KEY;
# define test(ctx) ((TEST_RC4_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx))
static int test_rc4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
                             const unsigned char *iv, int enc)
{
# ifdef TEST_ENG_OPENSSL_RC4_P_INIT
    fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_init_key() called\n");
# endif
    memcpy(&test(ctx)->key[0], key, EVP_CIPHER_CTX_key_length(ctx));
    RC4_set_key(&test(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx),
                test(ctx)->key);
    return 1;
}

static int test_rc4_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
                           const unsigned char *in, size_t inl)
{
# ifdef TEST_ENG_OPENSSL_RC4_P_CIPHER
    fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_cipher() called\n");
# endif
    RC4(&test(ctx)->ks, inl, in, out);
    return 1;
}

static EVP_CIPHER *r4_cipher = NULL;
static const EVP_CIPHER *test_r4_cipher(void)
{
    if (r4_cipher == NULL) {
        EVP_CIPHER *cipher;

        if ((cipher = EVP_CIPHER_meth_new(NID_rc4, 1, TEST_RC4_KEY_SIZE)) == NULL
            || !EVP_CIPHER_meth_set_iv_length(cipher, 0)
            || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_VARIABLE_LENGTH)
            || !EVP_CIPHER_meth_set_init(cipher, test_rc4_init_key)
            || !EVP_CIPHER_meth_set_do_cipher(cipher, test_rc4_cipher)
            || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(TEST_RC4_KEY))) {
            EVP_CIPHER_meth_free(cipher);
            cipher = NULL;
        }
        r4_cipher = cipher;
    }
    return r4_cipher;
}
static void test_r4_cipher_destroy(void)
{
    EVP_CIPHER_meth_free(r4_cipher);
    r4_cipher = NULL;
}

static EVP_CIPHER *r4_40_cipher = NULL;
static const EVP_CIPHER *test_r4_40_cipher(void)
{
    if (r4_40_cipher == NULL) {
        EVP_CIPHER *cipher;

        if ((cipher = EVP_CIPHER_meth_new(NID_rc4, 1, 5 /* 40 bits */)) == NULL
            || !EVP_CIPHER_meth_set_iv_length(cipher, 0)
            || !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_VARIABLE_LENGTH)
            || !EVP_CIPHER_meth_set_init(cipher, test_rc4_init_key)
            || !EVP_CIPHER_meth_set_do_cipher(cipher, test_rc4_cipher)
            || !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(TEST_RC4_KEY))) {
            EVP_CIPHER_meth_free(cipher);
            cipher = NULL;
        }
        r4_40_cipher = cipher;
    }
    return r4_40_cipher;
}
static void test_r4_40_cipher_destroy(void)
{
    EVP_CIPHER_meth_free(r4_40_cipher);
    r4_40_cipher = NULL;
}
static int test_cipher_nids(const int **nids)
{
    static int cipher_nids[4] = { 0, 0, 0, 0 };
    static int pos = 0;
    static int init = 0;

    if (!init) {
        const EVP_CIPHER *cipher;
        if ((cipher = test_r4_cipher()) != NULL)
            cipher_nids[pos++] = EVP_CIPHER_nid(cipher);
        if ((cipher = test_r4_40_cipher()) != NULL)
            cipher_nids[pos++] = EVP_CIPHER_nid(cipher);
        cipher_nids[pos] = 0;
        init = 1;
    }
    *nids = cipher_nids;
    return pos;
}

static int openssl_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
                           const int **nids, int nid)
{
    if (!cipher) {
        /* We are returning a list of supported nids */
        return test_cipher_nids(nids);
    }
    /* We are being asked for a specific cipher */
    if (nid == NID_rc4)
        *cipher = test_r4_cipher();
    else if (nid == NID_rc4_40)
        *cipher = test_r4_40_cipher();
    else {
# ifdef TEST_ENG_OPENSSL_RC4_OTHERS
        fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) returning NULL for "
                "nid %d\n", nid);
# endif
        *cipher = NULL;
        return 0;
    }
    return 1;
}
#endif

#ifdef TEST_ENG_OPENSSL_SHA
/* Much the same sort of comment as for TEST_ENG_OPENSSL_RC4 */
# include <openssl/sha.h>

static int test_sha1_init(EVP_MD_CTX *ctx)
{
# ifdef TEST_ENG_OPENSSL_SHA_P_INIT
    fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_init() called\n");
# endif
    return SHA1_Init(EVP_MD_CTX_md_data(ctx));
}

static int test_sha1_update(EVP_MD_CTX *ctx, const void *data, size_t count)
{
# ifdef TEST_ENG_OPENSSL_SHA_P_UPDATE
    fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_update() called\n");
# endif
    return SHA1_Update(EVP_MD_CTX_md_data(ctx), data, count);
}

static int test_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
{
# ifdef TEST_ENG_OPENSSL_SHA_P_FINAL
    fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_final() called\n");
# endif
    return SHA1_Final(md, EVP_MD_CTX_md_data(ctx));
}

static EVP_MD *sha1_md = NULL;
static const EVP_MD *test_sha_md(void)
{
    if (sha1_md == NULL) {
        EVP_MD *md;

        if ((md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption)) == NULL
            || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
            || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
            || !EVP_MD_meth_set_app_datasize(md,
                                             sizeof(EVP_MD *) + sizeof(SHA_CTX))
            || !EVP_MD_meth_set_flags(md, 0)
            || !EVP_MD_meth_set_init(md, test_sha1_init)
            || !EVP_MD_meth_set_update(md, test_sha1_update)
            || !EVP_MD_meth_set_final(md, test_sha1_final)) {
            EVP_MD_meth_free(md);
            md = NULL;
        }
        sha1_md = md;
    }
    return sha1_md;
}
static void test_sha_md_destroy(void)
{
    EVP_MD_meth_free(sha1_md);
    sha1_md = NULL;
}
static int test_digest_nids(const int **nids)
{
    static int digest_nids[2] = { 0, 0 };
    static int pos = 0;
    static int init = 0;

    if (!init) {
        const EVP_MD *md;
        if ((md = test_sha_md()) != NULL)
            digest_nids[pos++] = EVP_MD_type(md);
        digest_nids[pos] = 0;
        init = 1;
    }
    *nids = digest_nids;
    return pos;
}

static int openssl_digests(ENGINE *e, const EVP_MD **digest,
                           const int **nids, int nid)
{
    if (!digest) {
        /* We are returning a list of supported nids */
        return test_digest_nids(nids);
    }
    /* We are being asked for a specific digest */
    if (nid == NID_sha1)
        *digest = test_sha_md();
    else {
# ifdef TEST_ENG_OPENSSL_SHA_OTHERS
        fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) returning NULL for "
                "nid %d\n", nid);
# endif
        *digest = NULL;
        return 0;
    }
    return 1;
}
#endif

#ifdef TEST_ENG_OPENSSL_PKEY
static EVP_PKEY *openssl_load_privkey(ENGINE *eng, const char *key_id,
                                      UI_METHOD *ui_method,
                                      void *callback_data)
{
    BIO *in;
    EVP_PKEY *key;
    fprintf(stderr, "(TEST_ENG_OPENSSL_PKEY)Loading Private key %s\n",
            key_id);
    in = BIO_new_file(key_id, "r");
    if (!in)
        return NULL;
    key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL);
    BIO_free(in);
    return key;
}
#endif

#ifdef TEST_ENG_OPENSSL_HMAC

/*
 * Experimental HMAC redirection implementation: mainly copied from
 * hm_pmeth.c
 */

/* HMAC pkey context structure */

typedef struct {
    const EVP_MD *md;           /* MD for HMAC use */
    ASN1_OCTET_STRING ktmp;     /* Temp storage for key */
    HMAC_CTX *ctx;
} OSSL_HMAC_PKEY_CTX;

static int ossl_hmac_init(EVP_PKEY_CTX *ctx)
{
    OSSL_HMAC_PKEY_CTX *hctx;

    if ((hctx = OPENSSL_zalloc(sizeof(*hctx))) == NULL) {
        ENGINEerr(ENGINE_F_OSSL_HMAC_INIT, ERR_R_MALLOC_FAILURE);
        return 0;
    }
    hctx->ktmp.type = V_ASN1_OCTET_STRING;
    hctx->ctx = HMAC_CTX_new();
    if (hctx->ctx == NULL) {
        OPENSSL_free(hctx);
        return 0;
    }
    EVP_PKEY_CTX_set_data(ctx, hctx);
    EVP_PKEY_CTX_set0_keygen_info(ctx, NULL, 0);
# ifdef TEST_ENG_OPENSSL_HMAC_INIT
    fprintf(stderr, "(TEST_ENG_OPENSSL_HMAC) ossl_hmac_init() called\n");
# endif
    return 1;
}

static void ossl_hmac_cleanup(EVP_PKEY_CTX *ctx);

static int ossl_hmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
{
    OSSL_HMAC_PKEY_CTX *sctx, *dctx;

    /* allocate memory for dst->data and a new HMAC_CTX in dst->data->ctx */
    if (!ossl_hmac_init(dst))
        return 0;
    sctx = EVP_PKEY_CTX_get_data(src);
    dctx = EVP_PKEY_CTX_get_data(dst);
    dctx->md = sctx->md;
    if (!HMAC_CTX_copy(dctx->ctx, sctx->ctx))
        goto err;
    if (sctx->ktmp.data) {
        if (!ASN1_OCTET_STRING_set(&dctx->ktmp,
                                   sctx->ktmp.data, sctx->ktmp.length))
            goto err;
    }
    return 1;
err:
    /* release HMAC_CTX in dst->data->ctx and memory allocated for dst->data */
    ossl_hmac_cleanup(dst);
    return 0;
}

static void ossl_hmac_cleanup(EVP_PKEY_CTX *ctx)
{
    OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);

    if (hctx) {
        HMAC_CTX_free(hctx->ctx);
        OPENSSL_clear_free(hctx->ktmp.data, hctx->ktmp.length);
        OPENSSL_free(hctx);
        EVP_PKEY_CTX_set_data(ctx, NULL);
    }
}

static int ossl_hmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
{
    ASN1_OCTET_STRING *hkey = NULL;
    OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
    if (!hctx->ktmp.data)
        return 0;
    hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp);
    if (!hkey)
        return 0;
    EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey);

    return 1;
}

static int ossl_int_update(EVP_MD_CTX *ctx, const void *data, size_t count)
{
    OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(EVP_MD_CTX_pkey_ctx(ctx));
    if (!HMAC_Update(hctx->ctx, data, count))
        return 0;
    return 1;
}

static int ossl_hmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
{
    EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
    EVP_MD_CTX_set_update_fn(mctx, ossl_int_update);
    return 1;
}

static int ossl_hmac_signctx(EVP_PKEY_CTX *ctx, unsigned char *sig,
                             size_t *siglen, EVP_MD_CTX *mctx)
{
    unsigned int hlen;
    OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
    int l = EVP_MD_CTX_size(mctx);

    if (l < 0)
        return 0;
    *siglen = l;
    if (!sig)
        return 1;

    if (!HMAC_Final(hctx->ctx, sig, &hlen))
        return 0;
    *siglen = (size_t)hlen;
    return 1;
}

static int ossl_hmac_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
{
    OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
    EVP_PKEY *pk;
    ASN1_OCTET_STRING *key;
    switch (type) {

    case EVP_PKEY_CTRL_SET_MAC_KEY:
        if ((!p2 && p1 > 0) || (p1 < -1))
            return 0;
        if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1))
            return 0;
        break;

    case EVP_PKEY_CTRL_MD:
        hctx->md = p2;
        break;

    case EVP_PKEY_CTRL_DIGESTINIT:
        pk = EVP_PKEY_CTX_get0_pkey(ctx);
        key = EVP_PKEY_get0(pk);
        if (!HMAC_Init_ex(hctx->ctx, key->data, key->length, hctx->md, NULL))
            return 0;
        break;

    default:
        return -2;

    }
    return 1;
}

static int ossl_hmac_ctrl_str(EVP_PKEY_CTX *ctx,
                              const char *type, const char *value)
{
    if (!value) {
        return 0;
    }
    if (strcmp(type, "key") == 0) {
        void *p = (void *)value;
        return ossl_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, -1, p);
    }
    if (strcmp(type, "hexkey") == 0) {
        unsigned char *key;
        int r;
        long keylen;
        key = OPENSSL_hexstr2buf(value, &keylen);
        if (!key)
            return 0;
        r = ossl_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key);
        OPENSSL_free(key);
        return r;
    }
    return -2;
}

static EVP_PKEY_METHOD *ossl_hmac_meth;

static int ossl_register_hmac_meth(void)
{
    EVP_PKEY_METHOD *meth;
    meth = EVP_PKEY_meth_new(EVP_PKEY_HMAC, 0);
    if (meth == NULL)
        return 0;
    EVP_PKEY_meth_set_init(meth, ossl_hmac_init);
    EVP_PKEY_meth_set_copy(meth, ossl_hmac_copy);
    EVP_PKEY_meth_set_cleanup(meth, ossl_hmac_cleanup);

    EVP_PKEY_meth_set_keygen(meth, 0, ossl_hmac_keygen);

    EVP_PKEY_meth_set_signctx(meth, ossl_hmac_signctx_init,
                              ossl_hmac_signctx);

    EVP_PKEY_meth_set_ctrl(meth, ossl_hmac_ctrl, ossl_hmac_ctrl_str);
    ossl_hmac_meth = meth;
    return 1;
}

static int ossl_pkey_meths(ENGINE *e, EVP_PKEY_METHOD **pmeth,
                           const int **nids, int nid)
{
    static int ossl_pkey_nids[] = {
        EVP_PKEY_HMAC,
        0
    };
    if (!pmeth) {
        *nids = ossl_pkey_nids;
        return 1;
    }

    if (nid == EVP_PKEY_HMAC) {
        *pmeth = ossl_hmac_meth;
        return 1;
    }

    *pmeth = NULL;
    return 0;
}

#endif

int openssl_destroy(ENGINE *e)
{
    test_sha_md_destroy();
#ifdef TEST_ENG_OPENSSL_RC4
    test_r4_cipher_destroy();
    test_r4_40_cipher_destroy();
#endif
    return 1;
}


Coverage Report

Created: 2023-06-08 06:40

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2001-2020 The OpenSSL Project Authors. All Rights Reserved.
3		* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4		*
5		* Licensed under the OpenSSL license (the "License"). You may not use
6		* this file except in compliance with the License. You can obtain a copy
7		* in the file LICENSE in the source distribution or at
8		* https://www.openssl.org/source/license.html
9		*/
10
11		#include <stdio.h>
12		#include <openssl/crypto.h>
13		#include "internal/cryptlib.h"
14		#include "crypto/engine.h"
15		#include <openssl/pem.h>
16		#include <openssl/evp.h>
17		#include <openssl/rand.h>
18		#include <openssl/rsa.h>
19		#include <openssl/dsa.h>
20		#include <openssl/dh.h>
21
22		#include <openssl/hmac.h>
23		#include <openssl/x509v3.h>
24
25		/*
26		* This testing gunk is implemented (and explained) lower down. It also
27		* assumes the application explicitly calls "ENGINE_load_openssl()" because
28		* this is no longer automatic in ENGINE_load_builtin_engines().
29		*/
30		#define TEST_ENG_OPENSSL_RC4
31		#ifndef OPENSSL_NO_STDIO
32		# define TEST_ENG_OPENSSL_PKEY
33		#endif
34		/* #define TEST_ENG_OPENSSL_HMAC */
35		/* #define TEST_ENG_OPENSSL_HMAC_INIT */
36		/* #define TEST_ENG_OPENSSL_RC4_OTHERS */
37		#ifndef OPENSSL_NO_STDIO
38		# define TEST_ENG_OPENSSL_RC4_P_INIT
39		#endif
40		/* #define TEST_ENG_OPENSSL_RC4_P_CIPHER */
41		#define TEST_ENG_OPENSSL_SHA
42		/* #define TEST_ENG_OPENSSL_SHA_OTHERS */
43		/* #define TEST_ENG_OPENSSL_SHA_P_INIT */
44		/* #define TEST_ENG_OPENSSL_SHA_P_UPDATE */
45		/* #define TEST_ENG_OPENSSL_SHA_P_FINAL */
46
47		/* Now check what of those algorithms are actually enabled */
48		#ifdef OPENSSL_NO_RC4
49		# undef TEST_ENG_OPENSSL_RC4
50		# undef TEST_ENG_OPENSSL_RC4_OTHERS
51		# undef TEST_ENG_OPENSSL_RC4_P_INIT
52		# undef TEST_ENG_OPENSSL_RC4_P_CIPHER
53		#endif
54
55		static int openssl_destroy(ENGINE *e);
56
57		#ifdef TEST_ENG_OPENSSL_RC4
58		static int openssl_ciphers(ENGINE e, const EVP_CIPHER *cipher,
59		const int **nids, int nid);
60		#endif
61		#ifdef TEST_ENG_OPENSSL_SHA
62		static int openssl_digests(ENGINE e, const EVP_MD *digest,
63		const int **nids, int nid);
64		#endif
65
66		#ifdef TEST_ENG_OPENSSL_PKEY
67		static EVP_PKEY openssl_load_privkey(ENGINE eng, const char *key_id,
68		UI_METHOD *ui_method,
69		void *callback_data);
70		#endif
71
72		#ifdef TEST_ENG_OPENSSL_HMAC
73		static int ossl_register_hmac_meth(void);
74		static int ossl_pkey_meths(ENGINE e, EVP_PKEY_METHOD *pmeth,
75		const int **nids, int nid);
76		#endif
77
78		/* The constants used when creating the ENGINE */
79		static const char *engine_openssl_id = "openssl";
80		static const char *engine_openssl_name = "Software engine support";
81
82		/*
83		* This internal function is used by ENGINE_openssl() and possibly by the
84		* "dynamic" ENGINE support too
85		*/
86		static int bind_helper(ENGINE *e)
87	0	{
88	0	if (!ENGINE_set_id(e, engine_openssl_id)
89	0	\|\| !ENGINE_set_name(e, engine_openssl_name)
90	0	\|\| !ENGINE_set_destroy_function(e, openssl_destroy)
91	0	#ifndef TEST_ENG_OPENSSL_NO_ALGORITHMS
92	0	# ifndef OPENSSL_NO_RSA
93	0	\|\| !ENGINE_set_RSA(e, RSA_get_default_method())
94	0	# endif
95	0	# ifndef OPENSSL_NO_DSA
96	0	\|\| !ENGINE_set_DSA(e, DSA_get_default_method())
97	0	# endif
98	0	# ifndef OPENSSL_NO_EC
99	0	\|\| !ENGINE_set_EC(e, EC_KEY_OpenSSL())
100	0	# endif
101	0	# ifndef OPENSSL_NO_DH
102	0	\|\| !ENGINE_set_DH(e, DH_get_default_method())
103	0	# endif
104	0	\|\| !ENGINE_set_RAND(e, RAND_OpenSSL())
105	0	# ifdef TEST_ENG_OPENSSL_RC4
106	0	\|\| !ENGINE_set_ciphers(e, openssl_ciphers)
107	0	# endif
108	0	# ifdef TEST_ENG_OPENSSL_SHA
109	0	\|\| !ENGINE_set_digests(e, openssl_digests)
110	0	# endif
111	0	#endif
112	0	#ifdef TEST_ENG_OPENSSL_PKEY
113	0	\|\| !ENGINE_set_load_privkey_function(e, openssl_load_privkey)
114	0	#endif
115		#ifdef TEST_ENG_OPENSSL_HMAC
116		\|\| !ossl_register_hmac_meth()
117		\|\| !ENGINE_set_pkey_meths(e, ossl_pkey_meths)
118		#endif
119	0	)
120	0	return 0;
121		/*
122		* If we add errors to this ENGINE, ensure the error handling is setup
123		* here
124		*/
125		/* openssl_load_error_strings(); */
126	0	return 1;
127	0	}
128
129		static ENGINE *engine_openssl(void)
130	0	{
131	0	ENGINE *ret = ENGINE_new();
132	0	if (ret == NULL)
133	0	return NULL;
134	0	if (!bind_helper(ret)) {
135	0	ENGINE_free(ret);
136	0	return NULL;
137	0	}
138	0	return ret;
139	0	}
140
141		void engine_load_openssl_int(void)
142	0	{
143	0	ENGINE *toadd = engine_openssl();
144	0	if (!toadd)
145	0	return;
146	0	ENGINE_add(toadd);
147		/*
148		* If the "add" worked, it gets a structural reference. So either way, we
149		* release our just-created reference.
150		*/
151	0	ENGINE_free(toadd);
152	0	ERR_clear_error();
153	0	}
154
155		/*
156		* This stuff is needed if this ENGINE is being compiled into a
157		* self-contained shared-library.
158		*/
159		#ifdef ENGINE_DYNAMIC_SUPPORT
160		static int bind_fn(ENGINE e, const char id)
161		{
162		if (id && (strcmp(id, engine_openssl_id) != 0))
163		return 0;
164		if (!bind_helper(e))
165		return 0;
166		return 1;
167		}
168
169		IMPLEMENT_DYNAMIC_CHECK_FN()
170		IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
171		#endif /* ENGINE_DYNAMIC_SUPPORT */
172		#ifdef TEST_ENG_OPENSSL_RC4
173		/*-
174		* This section of code compiles an "alternative implementation" of two modes of
175		* RC4 into this ENGINE. The result is that EVP_CIPHER operation for "rc4"
176		* should under normal circumstances go via this support rather than the default
177		* EVP support. There are other symbols to tweak the testing;
178		* TEST_ENC_OPENSSL_RC4_OTHERS - print a one line message to stderr each time
179		* we're asked for a cipher we don't support (should not happen).
180		* TEST_ENG_OPENSSL_RC4_P_INIT - print a one line message to stderr each time
181		* the "init_key" handler is called.
182		* TEST_ENG_OPENSSL_RC4_P_CIPHER - ditto for the "cipher" handler.
183		*/
184		# include <openssl/rc4.h>
185	0	# define TEST_RC4_KEY_SIZE 16
186		typedef struct {
187		unsigned char key[TEST_RC4_KEY_SIZE];
188		RC4_KEY ks;
189		} TEST_RC4_KEY;
190	0	# define test(ctx) ((TEST_RC4_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx))
191		static int test_rc4_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
192		const unsigned char *iv, int enc)
193	0	{
194	0	# ifdef TEST_ENG_OPENSSL_RC4_P_INIT
195	0	fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_init_key() called\n");
196	0	# endif
197	0	memcpy(&test(ctx)->key[0], key, EVP_CIPHER_CTX_key_length(ctx));
198	0	RC4_set_key(&test(ctx)->ks, EVP_CIPHER_CTX_key_length(ctx),
199	0	test(ctx)->key);
200	0	return 1;
201	0	}
202
203		static int test_rc4_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
204		const unsigned char *in, size_t inl)
205	0	{
206		# ifdef TEST_ENG_OPENSSL_RC4_P_CIPHER
207		fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) test_cipher() called\n");
208		# endif
209	0	RC4(&test(ctx)->ks, inl, in, out);
210	0	return 1;
211	0	}
212
213		static EVP_CIPHER *r4_cipher = NULL;
214		static const EVP_CIPHER *test_r4_cipher(void)
215	0	{
216	0	if (r4_cipher == NULL) {
217	0	EVP_CIPHER *cipher;
218
219	0	if ((cipher = EVP_CIPHER_meth_new(NID_rc4, 1, TEST_RC4_KEY_SIZE)) == NULL
220	0	\|\| !EVP_CIPHER_meth_set_iv_length(cipher, 0)
221	0	\|\| !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_VARIABLE_LENGTH)
222	0	\|\| !EVP_CIPHER_meth_set_init(cipher, test_rc4_init_key)
223	0	\|\| !EVP_CIPHER_meth_set_do_cipher(cipher, test_rc4_cipher)
224	0	\|\| !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(TEST_RC4_KEY))) {
225	0	EVP_CIPHER_meth_free(cipher);
226	0	cipher = NULL;
227	0	}
228	0	r4_cipher = cipher;
229	0	}
230	0	return r4_cipher;
231	0	}
232		static void test_r4_cipher_destroy(void)
233	0	{
234	0	EVP_CIPHER_meth_free(r4_cipher);
235	0	r4_cipher = NULL;
236	0	}
237
238		static EVP_CIPHER *r4_40_cipher = NULL;
239		static const EVP_CIPHER *test_r4_40_cipher(void)
240	0	{
241	0	if (r4_40_cipher == NULL) {
242	0	EVP_CIPHER *cipher;
243
244	0	if ((cipher = EVP_CIPHER_meth_new(NID_rc4, 1, 5 /* 40 bits */)) == NULL
245	0	\|\| !EVP_CIPHER_meth_set_iv_length(cipher, 0)
246	0	\|\| !EVP_CIPHER_meth_set_flags(cipher, EVP_CIPH_VARIABLE_LENGTH)
247	0	\|\| !EVP_CIPHER_meth_set_init(cipher, test_rc4_init_key)
248	0	\|\| !EVP_CIPHER_meth_set_do_cipher(cipher, test_rc4_cipher)
249	0	\|\| !EVP_CIPHER_meth_set_impl_ctx_size(cipher, sizeof(TEST_RC4_KEY))) {
250	0	EVP_CIPHER_meth_free(cipher);
251	0	cipher = NULL;
252	0	}
253	0	r4_40_cipher = cipher;
254	0	}
255	0	return r4_40_cipher;
256	0	}
257		static void test_r4_40_cipher_destroy(void)
258	0	{
259	0	EVP_CIPHER_meth_free(r4_40_cipher);
260	0	r4_40_cipher = NULL;
261	0	}
262		static int test_cipher_nids(const int **nids)
263	0	{
264	0	static int cipher_nids[4] = { 0, 0, 0, 0 };
265	0	static int pos = 0;
266	0	static int init = 0;
267
268	0	if (!init) {
269	0	const EVP_CIPHER *cipher;
270	0	if ((cipher = test_r4_cipher()) != NULL)
271	0	cipher_nids[pos++] = EVP_CIPHER_nid(cipher);
272	0	if ((cipher = test_r4_40_cipher()) != NULL)
273	0	cipher_nids[pos++] = EVP_CIPHER_nid(cipher);
274	0	cipher_nids[pos] = 0;
275	0	init = 1;
276	0	}
277	0	*nids = cipher_nids;
278	0	return pos;
279	0	}
280
281		static int openssl_ciphers(ENGINE e, const EVP_CIPHER *cipher,
282		const int **nids, int nid)
283	0	{
284	0	if (!cipher) {
285		/* We are returning a list of supported nids */
286	0	return test_cipher_nids(nids);
287	0	}
288		/* We are being asked for a specific cipher */
289	0	if (nid == NID_rc4)
290	0	*cipher = test_r4_cipher();
291	0	else if (nid == NID_rc4_40)
292	0	*cipher = test_r4_40_cipher();
293	0	else {
294		# ifdef TEST_ENG_OPENSSL_RC4_OTHERS
295		fprintf(stderr, "(TEST_ENG_OPENSSL_RC4) returning NULL for "
296		"nid %d\n", nid);
297		# endif
298	0	*cipher = NULL;
299	0	return 0;
300	0	}
301	0	return 1;
302	0	}
303		#endif
304
305		#ifdef TEST_ENG_OPENSSL_SHA
306		/* Much the same sort of comment as for TEST_ENG_OPENSSL_RC4 */
307		# include <openssl/sha.h>
308
309		static int test_sha1_init(EVP_MD_CTX *ctx)
310	0	{
311		# ifdef TEST_ENG_OPENSSL_SHA_P_INIT
312		fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_init() called\n");
313		# endif
314	0	return SHA1_Init(EVP_MD_CTX_md_data(ctx));
315	0	}
316
317		static int test_sha1_update(EVP_MD_CTX ctx, const void data, size_t count)
318	0	{
319		# ifdef TEST_ENG_OPENSSL_SHA_P_UPDATE
320		fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_update() called\n");
321		# endif
322	0	return SHA1_Update(EVP_MD_CTX_md_data(ctx), data, count);
323	0	}
324
325		static int test_sha1_final(EVP_MD_CTX ctx, unsigned char md)
326	0	{
327		# ifdef TEST_ENG_OPENSSL_SHA_P_FINAL
328		fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) test_sha1_final() called\n");
329		# endif
330	0	return SHA1_Final(md, EVP_MD_CTX_md_data(ctx));
331	0	}
332
333		static EVP_MD *sha1_md = NULL;
334		static const EVP_MD *test_sha_md(void)
335	0	{
336	0	if (sha1_md == NULL) {
337	0	EVP_MD *md;
338
339	0	if ((md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption)) == NULL
340	0	\|\| !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
341	0	\|\| !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
342	0	\|\| !EVP_MD_meth_set_app_datasize(md,
343	0	sizeof(EVP_MD *) + sizeof(SHA_CTX))
344	0	\|\| !EVP_MD_meth_set_flags(md, 0)
345	0	\|\| !EVP_MD_meth_set_init(md, test_sha1_init)
346	0	\|\| !EVP_MD_meth_set_update(md, test_sha1_update)
347	0	\|\| !EVP_MD_meth_set_final(md, test_sha1_final)) {
348	0	EVP_MD_meth_free(md);
349	0	md = NULL;
350	0	}
351	0	sha1_md = md;
352	0	}
353	0	return sha1_md;
354	0	}
355		static void test_sha_md_destroy(void)
356	0	{
357	0	EVP_MD_meth_free(sha1_md);
358	0	sha1_md = NULL;
359	0	}
360		static int test_digest_nids(const int **nids)
361	0	{
362	0	static int digest_nids[2] = { 0, 0 };
363	0	static int pos = 0;
364	0	static int init = 0;
365
366	0	if (!init) {
367	0	const EVP_MD *md;
368	0	if ((md = test_sha_md()) != NULL)
369	0	digest_nids[pos++] = EVP_MD_type(md);
370	0	digest_nids[pos] = 0;
371	0	init = 1;
372	0	}
373	0	*nids = digest_nids;
374	0	return pos;
375	0	}
376
377		static int openssl_digests(ENGINE e, const EVP_MD *digest,
378		const int **nids, int nid)
379	0	{
380	0	if (!digest) {
381		/* We are returning a list of supported nids */
382	0	return test_digest_nids(nids);
383	0	}
384		/* We are being asked for a specific digest */
385	0	if (nid == NID_sha1)
386	0	*digest = test_sha_md();
387	0	else {
388		# ifdef TEST_ENG_OPENSSL_SHA_OTHERS
389		fprintf(stderr, "(TEST_ENG_OPENSSL_SHA) returning NULL for "
390		"nid %d\n", nid);
391		# endif
392	0	*digest = NULL;
393	0	return 0;
394	0	}
395	0	return 1;
396	0	}
397		#endif
398
399		#ifdef TEST_ENG_OPENSSL_PKEY
400		static EVP_PKEY openssl_load_privkey(ENGINE eng, const char *key_id,
401		UI_METHOD *ui_method,
402		void *callback_data)
403	0	{
404	0	BIO *in;
405	0	EVP_PKEY *key;
406	0	fprintf(stderr, "(TEST_ENG_OPENSSL_PKEY)Loading Private key %s\n",
407	0	key_id);
408	0	in = BIO_new_file(key_id, "r");
409	0	if (!in)
410	0	return NULL;
411	0	key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL);
412	0	BIO_free(in);
413	0	return key;
414	0	}
415		#endif
416
417		#ifdef TEST_ENG_OPENSSL_HMAC
418
419		/*
420		* Experimental HMAC redirection implementation: mainly copied from
421		* hm_pmeth.c
422		*/
423
424		/* HMAC pkey context structure */
425
426		typedef struct {
427		const EVP_MD md; / MD for HMAC use */
428		ASN1_OCTET_STRING ktmp; /* Temp storage for key */
429		HMAC_CTX *ctx;
430		} OSSL_HMAC_PKEY_CTX;
431
432		static int ossl_hmac_init(EVP_PKEY_CTX *ctx)
433		{
434		OSSL_HMAC_PKEY_CTX *hctx;
435
436		if ((hctx = OPENSSL_zalloc(sizeof(*hctx))) == NULL) {
437		ENGINEerr(ENGINE_F_OSSL_HMAC_INIT, ERR_R_MALLOC_FAILURE);
438		return 0;
439		}
440		hctx->ktmp.type = V_ASN1_OCTET_STRING;
441		hctx->ctx = HMAC_CTX_new();
442		if (hctx->ctx == NULL) {
443		OPENSSL_free(hctx);
444		return 0;
445		}
446		EVP_PKEY_CTX_set_data(ctx, hctx);
447		EVP_PKEY_CTX_set0_keygen_info(ctx, NULL, 0);
448		# ifdef TEST_ENG_OPENSSL_HMAC_INIT
449		fprintf(stderr, "(TEST_ENG_OPENSSL_HMAC) ossl_hmac_init() called\n");
450		# endif
451		return 1;
452		}
453
454		static void ossl_hmac_cleanup(EVP_PKEY_CTX *ctx);
455
456		static int ossl_hmac_copy(EVP_PKEY_CTX dst, EVP_PKEY_CTX src)
457		{
458		OSSL_HMAC_PKEY_CTX sctx, dctx;
459
460		/* allocate memory for dst->data and a new HMAC_CTX in dst->data->ctx */
461		if (!ossl_hmac_init(dst))
462		return 0;
463		sctx = EVP_PKEY_CTX_get_data(src);
464		dctx = EVP_PKEY_CTX_get_data(dst);
465		dctx->md = sctx->md;
466		if (!HMAC_CTX_copy(dctx->ctx, sctx->ctx))
467		goto err;
468		if (sctx->ktmp.data) {
469		if (!ASN1_OCTET_STRING_set(&dctx->ktmp,
470		sctx->ktmp.data, sctx->ktmp.length))
471		goto err;
472		}
473		return 1;
474		err:
475		/* release HMAC_CTX in dst->data->ctx and memory allocated for dst->data */
476		ossl_hmac_cleanup(dst);
477		return 0;
478		}
479
480		static void ossl_hmac_cleanup(EVP_PKEY_CTX *ctx)
481		{
482		OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
483
484		if (hctx) {
485		HMAC_CTX_free(hctx->ctx);
486		OPENSSL_clear_free(hctx->ktmp.data, hctx->ktmp.length);
487		OPENSSL_free(hctx);
488		EVP_PKEY_CTX_set_data(ctx, NULL);
489		}
490		}
491
492		static int ossl_hmac_keygen(EVP_PKEY_CTX ctx, EVP_PKEY pkey)
493		{
494		ASN1_OCTET_STRING *hkey = NULL;
495		OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
496		if (!hctx->ktmp.data)
497		return 0;
498		hkey = ASN1_OCTET_STRING_dup(&hctx->ktmp);
499		if (!hkey)
500		return 0;
501		EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, hkey);
502
503		return 1;
504		}
505
506		static int ossl_int_update(EVP_MD_CTX ctx, const void data, size_t count)
507		{
508		OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(EVP_MD_CTX_pkey_ctx(ctx));
509		if (!HMAC_Update(hctx->ctx, data, count))
510		return 0;
511		return 1;
512		}
513
514		static int ossl_hmac_signctx_init(EVP_PKEY_CTX ctx, EVP_MD_CTX mctx)
515		{
516		EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
517		EVP_MD_CTX_set_update_fn(mctx, ossl_int_update);
518		return 1;
519		}
520
521		static int ossl_hmac_signctx(EVP_PKEY_CTX ctx, unsigned char sig,
522		size_t siglen, EVP_MD_CTX mctx)
523		{
524		unsigned int hlen;
525		OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
526		int l = EVP_MD_CTX_size(mctx);
527
528		if (l < 0)
529		return 0;
530		*siglen = l;
531		if (!sig)
532		return 1;
533
534		if (!HMAC_Final(hctx->ctx, sig, &hlen))
535		return 0;
536		*siglen = (size_t)hlen;
537		return 1;
538		}
539
540		static int ossl_hmac_ctrl(EVP_PKEY_CTX ctx, int type, int p1, void p2)
541		{
542		OSSL_HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
543		EVP_PKEY *pk;
544		ASN1_OCTET_STRING *key;
545		switch (type) {
546
547		case EVP_PKEY_CTRL_SET_MAC_KEY:
548		if ((!p2 && p1 > 0) \|\| (p1 < -1))
549		return 0;
550		if (!ASN1_OCTET_STRING_set(&hctx->ktmp, p2, p1))
551		return 0;
552		break;
553
554		case EVP_PKEY_CTRL_MD:
555		hctx->md = p2;
556		break;
557
558		case EVP_PKEY_CTRL_DIGESTINIT:
559		pk = EVP_PKEY_CTX_get0_pkey(ctx);
560		key = EVP_PKEY_get0(pk);
561		if (!HMAC_Init_ex(hctx->ctx, key->data, key->length, hctx->md, NULL))
562		return 0;
563		break;
564
565		default:
566		return -2;
567
568		}
569		return 1;
570		}
571
572		static int ossl_hmac_ctrl_str(EVP_PKEY_CTX *ctx,
573		const char type, const char value)
574		{
575		if (!value) {
576		return 0;
577		}
578		if (strcmp(type, "key") == 0) {
579		void p = (void )value;
580		return ossl_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, -1, p);
581		}
582		if (strcmp(type, "hexkey") == 0) {
583		unsigned char *key;
584		int r;
585		long keylen;
586		key = OPENSSL_hexstr2buf(value, &keylen);
587		if (!key)
588		return 0;
589		r = ossl_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key);
590		OPENSSL_free(key);
591		return r;
592		}
593		return -2;
594		}
595
596		static EVP_PKEY_METHOD *ossl_hmac_meth;
597
598		static int ossl_register_hmac_meth(void)
599		{
600		EVP_PKEY_METHOD *meth;
601		meth = EVP_PKEY_meth_new(EVP_PKEY_HMAC, 0);
602		if (meth == NULL)
603		return 0;
604		EVP_PKEY_meth_set_init(meth, ossl_hmac_init);
605		EVP_PKEY_meth_set_copy(meth, ossl_hmac_copy);
606		EVP_PKEY_meth_set_cleanup(meth, ossl_hmac_cleanup);
607
608		EVP_PKEY_meth_set_keygen(meth, 0, ossl_hmac_keygen);
609
610		EVP_PKEY_meth_set_signctx(meth, ossl_hmac_signctx_init,
611		ossl_hmac_signctx);
612
613		EVP_PKEY_meth_set_ctrl(meth, ossl_hmac_ctrl, ossl_hmac_ctrl_str);
614		ossl_hmac_meth = meth;
615		return 1;
616		}
617
618		static int ossl_pkey_meths(ENGINE e, EVP_PKEY_METHOD *pmeth,
619		const int **nids, int nid)
620		{
621		static int ossl_pkey_nids[] = {
622		EVP_PKEY_HMAC,
623		0
624		};
625		if (!pmeth) {
626		*nids = ossl_pkey_nids;
627		return 1;
628		}
629
630		if (nid == EVP_PKEY_HMAC) {
631		*pmeth = ossl_hmac_meth;
632		return 1;
633		}
634
635		*pmeth = NULL;
636		return 0;
637		}
638
639		#endif
640
641		int openssl_destroy(ENGINE *e)
642	0	{
643	0	test_sha_md_destroy();
644	0	#ifdef TEST_ENG_OPENSSL_RC4
645	0	test_r4_cipher_destroy();
646	0	test_r4_40_cipher_destroy();
647	0	#endif
648	0	return 1;
649	0	}
650