/src/openssl30/ssl/s3_enc.c

Source (jump to first uncovered line)
/*
 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright 2005 Nokia. All rights reserved.
 *
 * Licensed under the Apache License 2.0 (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 "ssl_local.h"
#include <openssl/evp.h>
#include <openssl/md5.h>
#include <openssl/core_names.h>
#include "internal/cryptlib.h"

static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num)
{
    const EVP_MD *md5 = NULL, *sha1 = NULL;
    EVP_MD_CTX *m5;
    EVP_MD_CTX *s1;
    unsigned char buf[16], smd[SHA_DIGEST_LENGTH];
    unsigned char c = 'A';
    unsigned int i, k;
    int ret = 0;

#ifdef CHARSET_EBCDIC
    c = os_toascii[c];          /* 'A' in ASCII */
#endif
    k = 0;
    md5 = ssl_evp_md_fetch(s->ctx->libctx, NID_md5, s->ctx->propq);
    sha1 = ssl_evp_md_fetch(s->ctx->libctx, NID_sha1, s->ctx->propq);
    m5 = EVP_MD_CTX_new();
    s1 = EVP_MD_CTX_new();
    if (md5 == NULL || sha1 == NULL || m5 == NULL || s1 == NULL) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
        goto err;
    }
    for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) {
        k++;
        if (k > sizeof(buf)) {
            /* bug: 'buf' is too small for this ciphersuite */
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            goto err;
        }

        memset(buf, c, k);
        c++;
        if (!EVP_DigestInit_ex(s1, sha1, NULL)
            || !EVP_DigestUpdate(s1, buf, k)
            || !EVP_DigestUpdate(s1, s->session->master_key,
                                 s->session->master_key_length)
            || !EVP_DigestUpdate(s1, s->s3.server_random, SSL3_RANDOM_SIZE)
            || !EVP_DigestUpdate(s1, s->s3.client_random, SSL3_RANDOM_SIZE)
            || !EVP_DigestFinal_ex(s1, smd, NULL)
            || !EVP_DigestInit_ex(m5, md5, NULL)
            || !EVP_DigestUpdate(m5, s->session->master_key,
                                 s->session->master_key_length)
            || !EVP_DigestUpdate(m5, smd, SHA_DIGEST_LENGTH)) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            goto err;
        }
        if ((int)(i + MD5_DIGEST_LENGTH) > num) {
            if (!EVP_DigestFinal_ex(m5, smd, NULL)) {
                SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
                goto err;
            }
            memcpy(km, smd, (num - i));
        } else {
            if (!EVP_DigestFinal_ex(m5, km, NULL)) {
                SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
                goto err;
            }
        }

        km += MD5_DIGEST_LENGTH;
    }
    OPENSSL_cleanse(smd, sizeof(smd));
    ret = 1;
 err:
    EVP_MD_CTX_free(m5);
    EVP_MD_CTX_free(s1);
    ssl_evp_md_free(md5);
    ssl_evp_md_free(sha1);
    return ret;
}

int ssl3_change_cipher_state(SSL *s, int which)
{
    unsigned char *p, *mac_secret;
    unsigned char *ms, *key, *iv;
    EVP_CIPHER_CTX *dd;
    const EVP_CIPHER *c;
#ifndef OPENSSL_NO_COMP
    COMP_METHOD *comp;
#endif
    const EVP_MD *m;
    int mdi;
    size_t n, i, j, k, cl;
    int reuse_dd = 0;

    c = s->s3.tmp.new_sym_enc;
    m = s->s3.tmp.new_hash;
    /* m == NULL will lead to a crash later */
    if (!ossl_assert(m != NULL)) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
        goto err;
    }
#ifndef OPENSSL_NO_COMP
    if (s->s3.tmp.new_compression == NULL)
        comp = NULL;
    else
        comp = s->s3.tmp.new_compression->method;
#endif

    if (which & SSL3_CC_READ) {
        if (s->enc_read_ctx != NULL) {
            reuse_dd = 1;
        } else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
            goto err;
        } else {
            /*
             * make sure it's initialised in case we exit later with an error
             */
            EVP_CIPHER_CTX_reset(s->enc_read_ctx);
        }
        dd = s->enc_read_ctx;

        if (ssl_replace_hash(&s->read_hash, m) == NULL) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            goto err;
        }
#ifndef OPENSSL_NO_COMP
        /* COMPRESS */
        COMP_CTX_free(s->expand);
        s->expand = NULL;
        if (comp != NULL) {
            s->expand = COMP_CTX_new(comp);
            if (s->expand == NULL) {
                SSLfatal(s, SSL_AD_INTERNAL_ERROR,
                         SSL_R_COMPRESSION_LIBRARY_ERROR);
                goto err;
            }
        }
#endif
        RECORD_LAYER_reset_read_sequence(&s->rlayer);
        mac_secret = &(s->s3.read_mac_secret[0]);
    } else {
        s->statem.enc_write_state = ENC_WRITE_STATE_INVALID;
        if (s->enc_write_ctx != NULL) {
            reuse_dd = 1;
        } else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
            goto err;
        } else {
            /*
             * make sure it's initialised in case we exit later with an error
             */
            EVP_CIPHER_CTX_reset(s->enc_write_ctx);
        }
        dd = s->enc_write_ctx;
        if (ssl_replace_hash(&s->write_hash, m) == NULL) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
            goto err;
        }
#ifndef OPENSSL_NO_COMP
        /* COMPRESS */
        COMP_CTX_free(s->compress);
        s->compress = NULL;
        if (comp != NULL) {
            s->compress = COMP_CTX_new(comp);
            if (s->compress == NULL) {
                SSLfatal(s, SSL_AD_INTERNAL_ERROR,
                         SSL_R_COMPRESSION_LIBRARY_ERROR);
                goto err;
            }
        }
#endif
        RECORD_LAYER_reset_write_sequence(&s->rlayer);
        mac_secret = &(s->s3.write_mac_secret[0]);
    }

    if (reuse_dd)
        EVP_CIPHER_CTX_reset(dd);

    p = s->s3.tmp.key_block;
    mdi = EVP_MD_get_size(m);
    if (mdi < 0) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
        goto err;
    }
    i = mdi;
    cl = EVP_CIPHER_get_key_length(c);
    j = cl;
    k = EVP_CIPHER_get_iv_length(c);
    if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
        (which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
        ms = &(p[0]);
        n = i + i;
        key = &(p[n]);
        n += j + j;
        iv = &(p[n]);
        n += k + k;
    } else {
        n = i;
        ms = &(p[n]);
        n += i + j;
        key = &(p[n]);
        n += j + k;
        iv = &(p[n]);
        n += k;
    }

    if (n > s->s3.tmp.key_block_length) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
        goto err;
    }

    memcpy(mac_secret, ms, i);

    if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
        goto err;
    }

    if (EVP_CIPHER_get0_provider(c) != NULL
            && !tls_provider_set_tls_params(s, dd, c, m)) {
        /* SSLfatal already called */
        goto err;
    }

    s->statem.enc_write_state = ENC_WRITE_STATE_VALID;
    return 1;
 err:
    return 0;
}

int ssl3_setup_key_block(SSL *s)
{
    unsigned char *p;
    const EVP_CIPHER *c;
    const EVP_MD *hash;
    int num;
    int ret = 0;
    SSL_COMP *comp;

    if (s->s3.tmp.key_block_length != 0)
        return 1;

    if (!ssl_cipher_get_evp(s->ctx, s->session, &c, &hash, NULL, NULL, &comp,
                            0)) {
        /* Error is already recorded */
        SSLfatal_alert(s, SSL_AD_INTERNAL_ERROR);
        return 0;
    }

    ssl_evp_cipher_free(s->s3.tmp.new_sym_enc);
    s->s3.tmp.new_sym_enc = c;
    ssl_evp_md_free(s->s3.tmp.new_hash);
    s->s3.tmp.new_hash = hash;
#ifdef OPENSSL_NO_COMP
    s->s3.tmp.new_compression = NULL;
#else
    s->s3.tmp.new_compression = comp;
#endif

    num = EVP_MD_get_size(hash);
    if (num < 0)
        return 0;

    num = EVP_CIPHER_get_key_length(c) + num + EVP_CIPHER_get_iv_length(c);
    num *= 2;

    ssl3_cleanup_key_block(s);

    if ((p = OPENSSL_malloc(num)) == NULL) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
        return 0;
    }

    s->s3.tmp.key_block_length = num;
    s->s3.tmp.key_block = p;

    /* Calls SSLfatal() as required */
    ret = ssl3_generate_key_block(s, p, num);

    if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) {
        /*
         * enable vulnerability countermeasure for CBC ciphers with known-IV
         * problem (http://www.openssl.org/~bodo/tls-cbc.txt)
         */
        s->s3.need_empty_fragments = 1;

        if (s->session->cipher != NULL) {
            if (s->session->cipher->algorithm_enc == SSL_eNULL)
                s->s3.need_empty_fragments = 0;

            if (s->session->cipher->algorithm_enc == SSL_RC4)
                s->s3.need_empty_fragments = 0;
        }
    }

    return ret;
}

void ssl3_cleanup_key_block(SSL *s)
{
    OPENSSL_clear_free(s->s3.tmp.key_block, s->s3.tmp.key_block_length);
    s->s3.tmp.key_block = NULL;
    s->s3.tmp.key_block_length = 0;
}

int ssl3_init_finished_mac(SSL *s)
{
    BIO *buf = BIO_new(BIO_s_mem());

    if (buf == NULL) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
        return 0;
    }
    ssl3_free_digest_list(s);
    s->s3.handshake_buffer = buf;
    (void)BIO_set_close(s->s3.handshake_buffer, BIO_CLOSE);
    return 1;
}

/*
 * Free digest list. Also frees handshake buffer since they are always freed
 * together.
 */

void ssl3_free_digest_list(SSL *s)
{
    BIO_free(s->s3.handshake_buffer);
    s->s3.handshake_buffer = NULL;
    EVP_MD_CTX_free(s->s3.handshake_dgst);
    s->s3.handshake_dgst = NULL;
}

int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len)
{
    int ret;

    if (s->s3.handshake_dgst == NULL) {
        /* Note: this writes to a memory BIO so a failure is a fatal error */
        if (len > INT_MAX) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_OVERFLOW_ERROR);
            return 0;
        }
        ret = BIO_write(s->s3.handshake_buffer, (void *)buf, (int)len);
        if (ret <= 0 || ret != (int)len) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            return 0;
        }
    } else {
        ret = EVP_DigestUpdate(s->s3.handshake_dgst, buf, len);
        if (!ret) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            return 0;
        }
    }
    return 1;
}

int ssl3_digest_cached_records(SSL *s, int keep)
{
    const EVP_MD *md;
    long hdatalen;
    void *hdata;

    if (s->s3.handshake_dgst == NULL) {
        hdatalen = BIO_get_mem_data(s->s3.handshake_buffer, &hdata);
        if (hdatalen <= 0) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_BAD_HANDSHAKE_LENGTH);
            return 0;
        }

        s->s3.handshake_dgst = EVP_MD_CTX_new();
        if (s->s3.handshake_dgst == NULL) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
            return 0;
        }

        md = ssl_handshake_md(s);
        if (md == NULL) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR,
                     SSL_R_NO_SUITABLE_DIGEST_ALGORITHM);
            return 0;
        }
        if (!EVP_DigestInit_ex(s->s3.handshake_dgst, md, NULL)
            || !EVP_DigestUpdate(s->s3.handshake_dgst, hdata, hdatalen)) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            return 0;
        }
    }
    if (keep == 0) {
        BIO_free(s->s3.handshake_buffer);
        s->s3.handshake_buffer = NULL;
    }

    return 1;
}

void ssl3_digest_master_key_set_params(const SSL_SESSION *session,
                                       OSSL_PARAM params[])
{
    int n = 0;
    params[n++] = OSSL_PARAM_construct_octet_string(OSSL_DIGEST_PARAM_SSL3_MS,
                                                    (void *)session->master_key,
                                                    session->master_key_length);
    params[n++] = OSSL_PARAM_construct_end();
}

size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t len,
                             unsigned char *p)
{
    int ret;
    EVP_MD_CTX *ctx = NULL;

    if (!ssl3_digest_cached_records(s, 0)) {
        /* SSLfatal() already called */
        return 0;
    }

    if (EVP_MD_CTX_get_type(s->s3.handshake_dgst) != NID_md5_sha1) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_NO_REQUIRED_DIGEST);
        return 0;
    }

    ctx = EVP_MD_CTX_new();
    if (ctx == NULL) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
        return 0;
    }
    if (!EVP_MD_CTX_copy_ex(ctx, s->s3.handshake_dgst)) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
        ret = 0;
        goto err;
    }

    ret = EVP_MD_CTX_get_size(ctx);
    if (ret < 0) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
        ret = 0;
        goto err;
    }

    if (sender != NULL) {
        OSSL_PARAM digest_cmd_params[3];

        ssl3_digest_master_key_set_params(s->session, digest_cmd_params);

        if (EVP_DigestUpdate(ctx, sender, len) <= 0
            || EVP_MD_CTX_set_params(ctx, digest_cmd_params) <= 0
            || EVP_DigestFinal_ex(ctx, p, NULL) <= 0) {
                SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
                ret = 0;
        }
    }

 err:
    EVP_MD_CTX_free(ctx);

    return ret;
}

int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
                                size_t len, size_t *secret_size)
{
    static const unsigned char *salt[3] = {
#ifndef CHARSET_EBCDIC
        (const unsigned char *)"A",
        (const unsigned char *)"BB",
        (const unsigned char *)"CCC",
#else
        (const unsigned char *)"\x41",
        (const unsigned char *)"\x42\x42",
        (const unsigned char *)"\x43\x43\x43",
#endif
    };
    unsigned char buf[EVP_MAX_MD_SIZE];
    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
    int i, ret = 1;
    unsigned int n;
    size_t ret_secret_size = 0;

    if (ctx == NULL) {
        SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
        return 0;
    }
    for (i = 0; i < 3; i++) {
        if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0
            || EVP_DigestUpdate(ctx, salt[i],
                                strlen((const char *)salt[i])) <= 0
            || EVP_DigestUpdate(ctx, p, len) <= 0
            || EVP_DigestUpdate(ctx, &(s->s3.client_random[0]),
                                SSL3_RANDOM_SIZE) <= 0
            || EVP_DigestUpdate(ctx, &(s->s3.server_random[0]),
                                SSL3_RANDOM_SIZE) <= 0
            || EVP_DigestFinal_ex(ctx, buf, &n) <= 0
            || EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0
            || EVP_DigestUpdate(ctx, p, len) <= 0
            || EVP_DigestUpdate(ctx, buf, n) <= 0
            || EVP_DigestFinal_ex(ctx, out, &n) <= 0) {
            SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
            ret = 0;
            break;
        }
        out += n;
        ret_secret_size += n;
    }
    EVP_MD_CTX_free(ctx);

    OPENSSL_cleanse(buf, sizeof(buf));
    if (ret)
        *secret_size = ret_secret_size;
    return ret;
}

int ssl3_alert_code(int code)
{
    switch (code) {
    case SSL_AD_CLOSE_NOTIFY:
        return SSL3_AD_CLOSE_NOTIFY;
    case SSL_AD_UNEXPECTED_MESSAGE:
        return SSL3_AD_UNEXPECTED_MESSAGE;
    case SSL_AD_BAD_RECORD_MAC:
        return SSL3_AD_BAD_RECORD_MAC;
    case SSL_AD_DECRYPTION_FAILED:
        return SSL3_AD_BAD_RECORD_MAC;
    case SSL_AD_RECORD_OVERFLOW:
        return SSL3_AD_BAD_RECORD_MAC;
    case SSL_AD_DECOMPRESSION_FAILURE:
        return SSL3_AD_DECOMPRESSION_FAILURE;
    case SSL_AD_HANDSHAKE_FAILURE:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_NO_CERTIFICATE:
        return SSL3_AD_NO_CERTIFICATE;
    case SSL_AD_BAD_CERTIFICATE:
        return SSL3_AD_BAD_CERTIFICATE;
    case SSL_AD_UNSUPPORTED_CERTIFICATE:
        return SSL3_AD_UNSUPPORTED_CERTIFICATE;
    case SSL_AD_CERTIFICATE_REVOKED:
        return SSL3_AD_CERTIFICATE_REVOKED;
    case SSL_AD_CERTIFICATE_EXPIRED:
        return SSL3_AD_CERTIFICATE_EXPIRED;
    case SSL_AD_CERTIFICATE_UNKNOWN:
        return SSL3_AD_CERTIFICATE_UNKNOWN;
    case SSL_AD_ILLEGAL_PARAMETER:
        return SSL3_AD_ILLEGAL_PARAMETER;
    case SSL_AD_UNKNOWN_CA:
        return SSL3_AD_BAD_CERTIFICATE;
    case SSL_AD_ACCESS_DENIED:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_DECODE_ERROR:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_DECRYPT_ERROR:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_EXPORT_RESTRICTION:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_PROTOCOL_VERSION:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_INSUFFICIENT_SECURITY:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_INTERNAL_ERROR:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_USER_CANCELLED:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_NO_RENEGOTIATION:
        return -1;            /* Don't send it :-) */
    case SSL_AD_UNSUPPORTED_EXTENSION:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_CERTIFICATE_UNOBTAINABLE:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_UNRECOGNIZED_NAME:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
        return SSL3_AD_HANDSHAKE_FAILURE;
    case SSL_AD_UNKNOWN_PSK_IDENTITY:
        return TLS1_AD_UNKNOWN_PSK_IDENTITY;
    case SSL_AD_INAPPROPRIATE_FALLBACK:
        return TLS1_AD_INAPPROPRIATE_FALLBACK;
    case SSL_AD_NO_APPLICATION_PROTOCOL:
        return TLS1_AD_NO_APPLICATION_PROTOCOL;
    case SSL_AD_CERTIFICATE_REQUIRED:
        return SSL_AD_HANDSHAKE_FAILURE;
    case TLS13_AD_MISSING_EXTENSION:
        return SSL_AD_HANDSHAKE_FAILURE;
    default:
        return -1;
    }
}

Coverage Report

Created: 2023-06-08 06:43

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3		* Copyright 2005 Nokia. All rights reserved.
4		*
5		* Licensed under the Apache License 2.0 (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 "ssl_local.h"
13		#include <openssl/evp.h>
14		#include <openssl/md5.h>
15		#include <openssl/core_names.h>
16		#include "internal/cryptlib.h"
17
18		static int ssl3_generate_key_block(SSL s, unsigned char km, int num)
19	0	{
20	0	const EVP_MD md5 = NULL, sha1 = NULL;
21	0	EVP_MD_CTX *m5;
22	0	EVP_MD_CTX *s1;
23	0	unsigned char buf[16], smd[SHA_DIGEST_LENGTH];
24	0	unsigned char c = 'A';
25	0	unsigned int i, k;
26	0	int ret = 0;
27
28		#ifdef CHARSET_EBCDIC
29		c = os_toascii[c]; /* 'A' in ASCII */
30		#endif
31	0	k = 0;
32	0	md5 = ssl_evp_md_fetch(s->ctx->libctx, NID_md5, s->ctx->propq);
33	0	sha1 = ssl_evp_md_fetch(s->ctx->libctx, NID_sha1, s->ctx->propq);
34	0	m5 = EVP_MD_CTX_new();
35	0	s1 = EVP_MD_CTX_new();
36	0	if (md5 == NULL \|\| sha1 == NULL \|\| m5 == NULL \|\| s1 == NULL) {
37	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
38	0	goto err;
39	0	}
40	0	for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) {
41	0	k++;
42	0	if (k > sizeof(buf)) {
43		/* bug: 'buf' is too small for this ciphersuite */
44	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
45	0	goto err;
46	0	}
47
48	0	memset(buf, c, k);
49	0	c++;
50	0	if (!EVP_DigestInit_ex(s1, sha1, NULL)
51	0	\|\| !EVP_DigestUpdate(s1, buf, k)
52	0	\|\| !EVP_DigestUpdate(s1, s->session->master_key,
53	0	s->session->master_key_length)
54	0	\|\| !EVP_DigestUpdate(s1, s->s3.server_random, SSL3_RANDOM_SIZE)
55	0	\|\| !EVP_DigestUpdate(s1, s->s3.client_random, SSL3_RANDOM_SIZE)
56	0	\|\| !EVP_DigestFinal_ex(s1, smd, NULL)
57	0	\|\| !EVP_DigestInit_ex(m5, md5, NULL)
58	0	\|\| !EVP_DigestUpdate(m5, s->session->master_key,
59	0	s->session->master_key_length)
60	0	\|\| !EVP_DigestUpdate(m5, smd, SHA_DIGEST_LENGTH)) {
61	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
62	0	goto err;
63	0	}
64	0	if ((int)(i + MD5_DIGEST_LENGTH) > num) {
65	0	if (!EVP_DigestFinal_ex(m5, smd, NULL)) {
66	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
67	0	goto err;
68	0	}
69	0	memcpy(km, smd, (num - i));
70	0	} else {
71	0	if (!EVP_DigestFinal_ex(m5, km, NULL)) {
72	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
73	0	goto err;
74	0	}
75	0	}
76
77	0	km += MD5_DIGEST_LENGTH;
78	0	}
79	0	OPENSSL_cleanse(smd, sizeof(smd));
80	0	ret = 1;
81	0	err:
82	0	EVP_MD_CTX_free(m5);
83	0	EVP_MD_CTX_free(s1);
84	0	ssl_evp_md_free(md5);
85	0	ssl_evp_md_free(sha1);
86	0	return ret;
87	0	}
88
89		int ssl3_change_cipher_state(SSL *s, int which)
90	0	{
91	0	unsigned char p, mac_secret;
92	0	unsigned char ms, key, *iv;
93	0	EVP_CIPHER_CTX *dd;
94	0	const EVP_CIPHER *c;
95	0	#ifndef OPENSSL_NO_COMP
96	0	COMP_METHOD *comp;
97	0	#endif
98	0	const EVP_MD *m;
99	0	int mdi;
100	0	size_t n, i, j, k, cl;
101	0	int reuse_dd = 0;
102
103	0	c = s->s3.tmp.new_sym_enc;
104	0	m = s->s3.tmp.new_hash;
105		/* m == NULL will lead to a crash later */
106	0	if (!ossl_assert(m != NULL)) {
107	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
108	0	goto err;
109	0	}
110	0	#ifndef OPENSSL_NO_COMP
111	0	if (s->s3.tmp.new_compression == NULL)
112	0	comp = NULL;
113	0	else
114	0	comp = s->s3.tmp.new_compression->method;
115	0	#endif
116
117	0	if (which & SSL3_CC_READ) {
118	0	if (s->enc_read_ctx != NULL) {
119	0	reuse_dd = 1;
120	0	} else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL) {
121	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
122	0	goto err;
123	0	} else {
124		/*
125		* make sure it's initialised in case we exit later with an error
126		*/
127	0	EVP_CIPHER_CTX_reset(s->enc_read_ctx);
128	0	}
129	0	dd = s->enc_read_ctx;
130
131	0	if (ssl_replace_hash(&s->read_hash, m) == NULL) {
132	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
133	0	goto err;
134	0	}
135	0	#ifndef OPENSSL_NO_COMP
136		/* COMPRESS */
137	0	COMP_CTX_free(s->expand);
138	0	s->expand = NULL;
139	0	if (comp != NULL) {
140	0	s->expand = COMP_CTX_new(comp);
141	0	if (s->expand == NULL) {
142	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR,
143	0	SSL_R_COMPRESSION_LIBRARY_ERROR);
144	0	goto err;
145	0	}
146	0	}
147	0	#endif
148	0	RECORD_LAYER_reset_read_sequence(&s->rlayer);
149	0	mac_secret = &(s->s3.read_mac_secret[0]);
150	0	} else {
151	0	s->statem.enc_write_state = ENC_WRITE_STATE_INVALID;
152	0	if (s->enc_write_ctx != NULL) {
153	0	reuse_dd = 1;
154	0	} else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL) {
155	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
156	0	goto err;
157	0	} else {
158		/*
159		* make sure it's initialised in case we exit later with an error
160		*/
161	0	EVP_CIPHER_CTX_reset(s->enc_write_ctx);
162	0	}
163	0	dd = s->enc_write_ctx;
164	0	if (ssl_replace_hash(&s->write_hash, m) == NULL) {
165	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
166	0	goto err;
167	0	}
168	0	#ifndef OPENSSL_NO_COMP
169		/* COMPRESS */
170	0	COMP_CTX_free(s->compress);
171	0	s->compress = NULL;
172	0	if (comp != NULL) {
173	0	s->compress = COMP_CTX_new(comp);
174	0	if (s->compress == NULL) {
175	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR,
176	0	SSL_R_COMPRESSION_LIBRARY_ERROR);
177	0	goto err;
178	0	}
179	0	}
180	0	#endif
181	0	RECORD_LAYER_reset_write_sequence(&s->rlayer);
182	0	mac_secret = &(s->s3.write_mac_secret[0]);
183	0	}
184
185	0	if (reuse_dd)
186	0	EVP_CIPHER_CTX_reset(dd);
187
188	0	p = s->s3.tmp.key_block;
189	0	mdi = EVP_MD_get_size(m);
190	0	if (mdi < 0) {
191	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
192	0	goto err;
193	0	}
194	0	i = mdi;
195	0	cl = EVP_CIPHER_get_key_length(c);
196	0	j = cl;
197	0	k = EVP_CIPHER_get_iv_length(c);
198	0	if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) \|\|
199	0	(which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
200	0	ms = &(p[0]);
201	0	n = i + i;
202	0	key = &(p[n]);
203	0	n += j + j;
204	0	iv = &(p[n]);
205	0	n += k + k;
206	0	} else {
207	0	n = i;
208	0	ms = &(p[n]);
209	0	n += i + j;
210	0	key = &(p[n]);
211	0	n += j + k;
212	0	iv = &(p[n]);
213	0	n += k;
214	0	}
215
216	0	if (n > s->s3.tmp.key_block_length) {
217	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
218	0	goto err;
219	0	}
220
221	0	memcpy(mac_secret, ms, i);
222
223	0	if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE))) {
224	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
225	0	goto err;
226	0	}
227
228	0	if (EVP_CIPHER_get0_provider(c) != NULL
229	0	&& !tls_provider_set_tls_params(s, dd, c, m)) {
230		/* SSLfatal already called */
231	0	goto err;
232	0	}
233
234	0	s->statem.enc_write_state = ENC_WRITE_STATE_VALID;
235	0	return 1;
236	0	err:
237	0	return 0;
238	0	}
239
240		int ssl3_setup_key_block(SSL *s)
241	0	{
242	0	unsigned char *p;
243	0	const EVP_CIPHER *c;
244	0	const EVP_MD *hash;
245	0	int num;
246	0	int ret = 0;
247	0	SSL_COMP *comp;
248
249	0	if (s->s3.tmp.key_block_length != 0)
250	0	return 1;
251
252	0	if (!ssl_cipher_get_evp(s->ctx, s->session, &c, &hash, NULL, NULL, &comp,
253	0	0)) {
254		/* Error is already recorded */
255	0	SSLfatal_alert(s, SSL_AD_INTERNAL_ERROR);
256	0	return 0;
257	0	}
258
259	0	ssl_evp_cipher_free(s->s3.tmp.new_sym_enc);
260	0	s->s3.tmp.new_sym_enc = c;
261	0	ssl_evp_md_free(s->s3.tmp.new_hash);
262	0	s->s3.tmp.new_hash = hash;
263		#ifdef OPENSSL_NO_COMP
264		s->s3.tmp.new_compression = NULL;
265		#else
266	0	s->s3.tmp.new_compression = comp;
267	0	#endif
268
269	0	num = EVP_MD_get_size(hash);
270	0	if (num < 0)
271	0	return 0;
272
273	0	num = EVP_CIPHER_get_key_length(c) + num + EVP_CIPHER_get_iv_length(c);
274	0	num *= 2;
275
276	0	ssl3_cleanup_key_block(s);
277
278	0	if ((p = OPENSSL_malloc(num)) == NULL) {
279	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
280	0	return 0;
281	0	}
282
283	0	s->s3.tmp.key_block_length = num;
284	0	s->s3.tmp.key_block = p;
285
286		/* Calls SSLfatal() as required */
287	0	ret = ssl3_generate_key_block(s, p, num);
288
289	0	if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS)) {
290		/*
291		* enable vulnerability countermeasure for CBC ciphers with known-IV
292		* problem (http://www.openssl.org/~bodo/tls-cbc.txt)
293		*/
294	0	s->s3.need_empty_fragments = 1;
295
296	0	if (s->session->cipher != NULL) {
297	0	if (s->session->cipher->algorithm_enc == SSL_eNULL)
298	0	s->s3.need_empty_fragments = 0;
299
300	0	if (s->session->cipher->algorithm_enc == SSL_RC4)
301	0	s->s3.need_empty_fragments = 0;
302	0	}
303	0	}
304
305	0	return ret;
306	0	}
307
308		void ssl3_cleanup_key_block(SSL *s)
309	0	{
310	0	OPENSSL_clear_free(s->s3.tmp.key_block, s->s3.tmp.key_block_length);
311	0	s->s3.tmp.key_block = NULL;
312	0	s->s3.tmp.key_block_length = 0;
313	0	}
314
315		int ssl3_init_finished_mac(SSL *s)
316	0	{
317	0	BIO *buf = BIO_new(BIO_s_mem());
318
319	0	if (buf == NULL) {
320	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
321	0	return 0;
322	0	}
323	0	ssl3_free_digest_list(s);
324	0	s->s3.handshake_buffer = buf;
325	0	(void)BIO_set_close(s->s3.handshake_buffer, BIO_CLOSE);
326	0	return 1;
327	0	}
328
329		/*
330		* Free digest list. Also frees handshake buffer since they are always freed
331		* together.
332		*/
333
334		void ssl3_free_digest_list(SSL *s)
335	0	{
336	0	BIO_free(s->s3.handshake_buffer);
337	0	s->s3.handshake_buffer = NULL;
338	0	EVP_MD_CTX_free(s->s3.handshake_dgst);
339	0	s->s3.handshake_dgst = NULL;
340	0	}
341
342		int ssl3_finish_mac(SSL s, const unsigned char buf, size_t len)
343	0	{
344	0	int ret;
345
346	0	if (s->s3.handshake_dgst == NULL) {
347		/* Note: this writes to a memory BIO so a failure is a fatal error */
348	0	if (len > INT_MAX) {
349	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_OVERFLOW_ERROR);
350	0	return 0;
351	0	}
352	0	ret = BIO_write(s->s3.handshake_buffer, (void *)buf, (int)len);
353	0	if (ret <= 0 \|\| ret != (int)len) {
354	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
355	0	return 0;
356	0	}
357	0	} else {
358	0	ret = EVP_DigestUpdate(s->s3.handshake_dgst, buf, len);
359	0	if (!ret) {
360	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
361	0	return 0;
362	0	}
363	0	}
364	0	return 1;
365	0	}
366
367		int ssl3_digest_cached_records(SSL *s, int keep)
368	0	{
369	0	const EVP_MD *md;
370	0	long hdatalen;
371	0	void *hdata;
372
373	0	if (s->s3.handshake_dgst == NULL) {
374	0	hdatalen = BIO_get_mem_data(s->s3.handshake_buffer, &hdata);
375	0	if (hdatalen <= 0) {
376	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_BAD_HANDSHAKE_LENGTH);
377	0	return 0;
378	0	}
379
380	0	s->s3.handshake_dgst = EVP_MD_CTX_new();
381	0	if (s->s3.handshake_dgst == NULL) {
382	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
383	0	return 0;
384	0	}
385
386	0	md = ssl_handshake_md(s);
387	0	if (md == NULL) {
388	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR,
389	0	SSL_R_NO_SUITABLE_DIGEST_ALGORITHM);
390	0	return 0;
391	0	}
392	0	if (!EVP_DigestInit_ex(s->s3.handshake_dgst, md, NULL)
393	0	\|\| !EVP_DigestUpdate(s->s3.handshake_dgst, hdata, hdatalen)) {
394	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
395	0	return 0;
396	0	}
397	0	}
398	0	if (keep == 0) {
399	0	BIO_free(s->s3.handshake_buffer);
400	0	s->s3.handshake_buffer = NULL;
401	0	}
402
403	0	return 1;
404	0	}
405
406		void ssl3_digest_master_key_set_params(const SSL_SESSION *session,
407		OSSL_PARAM params[])
408	0	{
409	0	int n = 0;
410	0	params[n++] = OSSL_PARAM_construct_octet_string(OSSL_DIGEST_PARAM_SSL3_MS,
411	0	(void *)session->master_key,
412	0	session->master_key_length);
413	0	params[n++] = OSSL_PARAM_construct_end();
414	0	}
415
416		size_t ssl3_final_finish_mac(SSL s, const char sender, size_t len,
417		unsigned char *p)
418	0	{
419	0	int ret;
420	0	EVP_MD_CTX *ctx = NULL;
421
422	0	if (!ssl3_digest_cached_records(s, 0)) {
423		/* SSLfatal() already called */
424	0	return 0;
425	0	}
426
427	0	if (EVP_MD_CTX_get_type(s->s3.handshake_dgst) != NID_md5_sha1) {
428	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_R_NO_REQUIRED_DIGEST);
429	0	return 0;
430	0	}
431
432	0	ctx = EVP_MD_CTX_new();
433	0	if (ctx == NULL) {
434	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
435	0	return 0;
436	0	}
437	0	if (!EVP_MD_CTX_copy_ex(ctx, s->s3.handshake_dgst)) {
438	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
439	0	ret = 0;
440	0	goto err;
441	0	}
442
443	0	ret = EVP_MD_CTX_get_size(ctx);
444	0	if (ret < 0) {
445	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
446	0	ret = 0;
447	0	goto err;
448	0	}
449
450	0	if (sender != NULL) {
451	0	OSSL_PARAM digest_cmd_params[3];
452
453	0	ssl3_digest_master_key_set_params(s->session, digest_cmd_params);
454
455	0	if (EVP_DigestUpdate(ctx, sender, len) <= 0
456	0	\|\| EVP_MD_CTX_set_params(ctx, digest_cmd_params) <= 0
457	0	\|\| EVP_DigestFinal_ex(ctx, p, NULL) <= 0) {
458	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
459	0	ret = 0;
460	0	}
461	0	}
462
463	0	err:
464	0	EVP_MD_CTX_free(ctx);
465
466	0	return ret;
467	0	}
468
469		int ssl3_generate_master_secret(SSL s, unsigned char out, unsigned char *p,
470		size_t len, size_t *secret_size)
471	0	{
472	0	static const unsigned char *salt[3] = {
473	0	#ifndef CHARSET_EBCDIC
474	0	(const unsigned char *)"A",
475	0	(const unsigned char *)"BB",
476	0	(const unsigned char *)"CCC",
477		#else
478		(const unsigned char *)"\x41",
479		(const unsigned char *)"\x42\x42",
480		(const unsigned char *)"\x43\x43\x43",
481		#endif
482	0	};
483	0	unsigned char buf[EVP_MAX_MD_SIZE];
484	0	EVP_MD_CTX *ctx = EVP_MD_CTX_new();
485	0	int i, ret = 1;
486	0	unsigned int n;
487	0	size_t ret_secret_size = 0;
488
489	0	if (ctx == NULL) {
490	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_MALLOC_FAILURE);
491	0	return 0;
492	0	}
493	0	for (i = 0; i < 3; i++) {
494	0	if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0
495	0	\|\| EVP_DigestUpdate(ctx, salt[i],
496	0	strlen((const char *)salt[i])) <= 0
497	0	\|\| EVP_DigestUpdate(ctx, p, len) <= 0
498	0	\|\| EVP_DigestUpdate(ctx, &(s->s3.client_random[0]),
499	0	SSL3_RANDOM_SIZE) <= 0
500	0	\|\| EVP_DigestUpdate(ctx, &(s->s3.server_random[0]),
501	0	SSL3_RANDOM_SIZE) <= 0
502	0	\|\| EVP_DigestFinal_ex(ctx, buf, &n) <= 0
503	0	\|\| EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0
504	0	\|\| EVP_DigestUpdate(ctx, p, len) <= 0
505	0	\|\| EVP_DigestUpdate(ctx, buf, n) <= 0
506	0	\|\| EVP_DigestFinal_ex(ctx, out, &n) <= 0) {
507	0	SSLfatal(s, SSL_AD_INTERNAL_ERROR, ERR_R_INTERNAL_ERROR);
508	0	ret = 0;
509	0	break;
510	0	}
511	0	out += n;
512	0	ret_secret_size += n;
513	0	}
514	0	EVP_MD_CTX_free(ctx);
515
516	0	OPENSSL_cleanse(buf, sizeof(buf));
517	0	if (ret)
518	0	*secret_size = ret_secret_size;
519	0	return ret;
520	0	}
521
522		int ssl3_alert_code(int code)
523	0	{
524	0	switch (code) {
525	0	case SSL_AD_CLOSE_NOTIFY:
526	0	return SSL3_AD_CLOSE_NOTIFY;
527	0	case SSL_AD_UNEXPECTED_MESSAGE:
528	0	return SSL3_AD_UNEXPECTED_MESSAGE;
529	0	case SSL_AD_BAD_RECORD_MAC:
530	0	return SSL3_AD_BAD_RECORD_MAC;
531	0	case SSL_AD_DECRYPTION_FAILED:
532	0	return SSL3_AD_BAD_RECORD_MAC;
533	0	case SSL_AD_RECORD_OVERFLOW:
534	0	return SSL3_AD_BAD_RECORD_MAC;
535	0	case SSL_AD_DECOMPRESSION_FAILURE:
536	0	return SSL3_AD_DECOMPRESSION_FAILURE;
537	0	case SSL_AD_HANDSHAKE_FAILURE:
538	0	return SSL3_AD_HANDSHAKE_FAILURE;
539	0	case SSL_AD_NO_CERTIFICATE:
540	0	return SSL3_AD_NO_CERTIFICATE;
541	0	case SSL_AD_BAD_CERTIFICATE:
542	0	return SSL3_AD_BAD_CERTIFICATE;
543	0	case SSL_AD_UNSUPPORTED_CERTIFICATE:
544	0	return SSL3_AD_UNSUPPORTED_CERTIFICATE;
545	0	case SSL_AD_CERTIFICATE_REVOKED:
546	0	return SSL3_AD_CERTIFICATE_REVOKED;
547	0	case SSL_AD_CERTIFICATE_EXPIRED:
548	0	return SSL3_AD_CERTIFICATE_EXPIRED;
549	0	case SSL_AD_CERTIFICATE_UNKNOWN:
550	0	return SSL3_AD_CERTIFICATE_UNKNOWN;
551	0	case SSL_AD_ILLEGAL_PARAMETER:
552	0	return SSL3_AD_ILLEGAL_PARAMETER;
553	0	case SSL_AD_UNKNOWN_CA:
554	0	return SSL3_AD_BAD_CERTIFICATE;
555	0	case SSL_AD_ACCESS_DENIED:
556	0	return SSL3_AD_HANDSHAKE_FAILURE;
557	0	case SSL_AD_DECODE_ERROR:
558	0	return SSL3_AD_HANDSHAKE_FAILURE;
559	0	case SSL_AD_DECRYPT_ERROR:
560	0	return SSL3_AD_HANDSHAKE_FAILURE;
561	0	case SSL_AD_EXPORT_RESTRICTION:
562	0	return SSL3_AD_HANDSHAKE_FAILURE;
563	0	case SSL_AD_PROTOCOL_VERSION:
564	0	return SSL3_AD_HANDSHAKE_FAILURE;
565	0	case SSL_AD_INSUFFICIENT_SECURITY:
566	0	return SSL3_AD_HANDSHAKE_FAILURE;
567	0	case SSL_AD_INTERNAL_ERROR:
568	0	return SSL3_AD_HANDSHAKE_FAILURE;
569	0	case SSL_AD_USER_CANCELLED:
570	0	return SSL3_AD_HANDSHAKE_FAILURE;
571	0	case SSL_AD_NO_RENEGOTIATION:
572	0	return -1; /* Don't send it :-) */
573	0	case SSL_AD_UNSUPPORTED_EXTENSION:
574	0	return SSL3_AD_HANDSHAKE_FAILURE;
575	0	case SSL_AD_CERTIFICATE_UNOBTAINABLE:
576	0	return SSL3_AD_HANDSHAKE_FAILURE;
577	0	case SSL_AD_UNRECOGNIZED_NAME:
578	0	return SSL3_AD_HANDSHAKE_FAILURE;
579	0	case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE:
580	0	return SSL3_AD_HANDSHAKE_FAILURE;
581	0	case SSL_AD_BAD_CERTIFICATE_HASH_VALUE:
582	0	return SSL3_AD_HANDSHAKE_FAILURE;
583	0	case SSL_AD_UNKNOWN_PSK_IDENTITY:
584	0	return TLS1_AD_UNKNOWN_PSK_IDENTITY;
585	0	case SSL_AD_INAPPROPRIATE_FALLBACK:
586	0	return TLS1_AD_INAPPROPRIATE_FALLBACK;
587	0	case SSL_AD_NO_APPLICATION_PROTOCOL:
588	0	return TLS1_AD_NO_APPLICATION_PROTOCOL;
589	0	case SSL_AD_CERTIFICATE_REQUIRED:
590	0	return SSL_AD_HANDSHAKE_FAILURE;
591	0	case TLS13_AD_MISSING_EXTENSION:
592	0	return SSL_AD_HANDSHAKE_FAILURE;
593	0	default:
594	0	return -1;
595	0	}
596	0	}