File: test-mongocrypt-crypto-std-hooks.c

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/*
 * Copyright 2022-present MongoDB, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "test-mongocrypt-crypto-std-hooks.h"

//

#include <mongocrypt-buffer-private.h>

#include "test-mongocrypt.h"

bool _std_hook_native_crypto_aes_256_cbc_encrypt(void *ctx,
                                                 mongocrypt_binary_t *key,
                                                 mongocrypt_binary_t *iv,
                                                 mongocrypt_binary_t *in,
                                                 mongocrypt_binary_t *out,
                                                 uint32_t *bytes_written,
                                                 mongocrypt_status_t *status) {
    _mongocrypt_buffer_t keybuf, ivbuf, inbuf, outbuf;
    _mongocrypt_buffer_from_binary(&keybuf, key);
    _mongocrypt_buffer_from_binary(&ivbuf, iv);
    _mongocrypt_buffer_from_binary(&inbuf, in);
    _mongocrypt_buffer_from_binary(&outbuf, out);

    aes_256_args_t args =
        {.key = &keybuf, .iv = &ivbuf, .in = &inbuf, .out = &outbuf, .bytes_written = bytes_written, .status = status};
    return _native_crypto_aes_256_cbc_encrypt(args);
}

bool _std_hook_native_crypto_aes_256_cbc_decrypt(void *ctx,
                                                 mongocrypt_binary_t *key,
                                                 mongocrypt_binary_t *iv,
                                                 mongocrypt_binary_t *in,
                                                 mongocrypt_binary_t *out,
                                                 uint32_t *bytes_written,
                                                 mongocrypt_status_t *status) {
    _mongocrypt_buffer_t keybuf, ivbuf, inbuf, outbuf;
    _mongocrypt_buffer_from_binary(&keybuf, key);
    _mongocrypt_buffer_from_binary(&ivbuf, iv);
    _mongocrypt_buffer_from_binary(&inbuf, in);
    _mongocrypt_buffer_from_binary(&outbuf, out);

    aes_256_args_t args =
        {.key = &keybuf, .iv = &ivbuf, .in = &inbuf, .out = &outbuf, .bytes_written = bytes_written, .status = status};
    return _native_crypto_aes_256_cbc_decrypt(args);
}

bool _std_hook_native_crypto_aes_256_ctr_encrypt(void *ctx,
                                                 mongocrypt_binary_t *key,
                                                 mongocrypt_binary_t *iv,
                                                 mongocrypt_binary_t *in,
                                                 mongocrypt_binary_t *out,
                                                 uint32_t *bytes_written,
                                                 mongocrypt_status_t *status) {
    _mongocrypt_buffer_t key_buf;
    _mongocrypt_buffer_from_binary(&key_buf, key);
    _mongocrypt_buffer_t iv_buf;
    _mongocrypt_buffer_from_binary(&iv_buf, iv);
    _mongocrypt_buffer_t in_buf;
    _mongocrypt_buffer_from_binary(&in_buf, in);
    _mongocrypt_buffer_t out_buf;
    _mongocrypt_buffer_from_binary(&out_buf, out);

    aes_256_args_t args = {&key_buf, &iv_buf, &in_buf, &out_buf, bytes_written, status};
    return _native_crypto_aes_256_ctr_encrypt(args);
}

bool _std_hook_native_crypto_aes_256_ctr_decrypt(void *ctx,
                                                 mongocrypt_binary_t *key,
                                                 mongocrypt_binary_t *iv,
                                                 mongocrypt_binary_t *in,
                                                 mongocrypt_binary_t *out,
                                                 uint32_t *bytes_written,
                                                 mongocrypt_status_t *status) {
    _mongocrypt_buffer_t key_buf;
    _mongocrypt_buffer_from_binary(&key_buf, key);
    _mongocrypt_buffer_t iv_buf;
    _mongocrypt_buffer_from_binary(&iv_buf, iv);
    _mongocrypt_buffer_t in_buf;
    _mongocrypt_buffer_from_binary(&in_buf, in);
    _mongocrypt_buffer_t out_buf;
    _mongocrypt_buffer_from_binary(&out_buf, out);

    aes_256_args_t args = {&key_buf, &iv_buf, &in_buf, &out_buf, bytes_written, status};
    return _native_crypto_aes_256_ctr_decrypt(args);
}

bool _std_hook_native_crypto_random(void *ctx, mongocrypt_binary_t *out, uint32_t count, mongocrypt_status_t *status) {
    _mongocrypt_buffer_t outbuf;
    _mongocrypt_buffer_from_binary(&outbuf, out);

    return _native_crypto_random(&outbuf, count, status);
}

bool _std_hook_native_hmac_sha512(void *ctx,
                                  mongocrypt_binary_t *key,
                                  mongocrypt_binary_t *in,
                                  mongocrypt_binary_t *out,
                                  mongocrypt_status_t *status) {
    _mongocrypt_buffer_t keybuf, inbuf, outbuf;
    _mongocrypt_buffer_from_binary(&keybuf, key);
    _mongocrypt_buffer_from_binary(&inbuf, in);
    _mongocrypt_buffer_from_binary(&outbuf, out);

    return _native_crypto_hmac_sha_512(&keybuf, &inbuf, &outbuf, status);
}

bool _std_hook_native_hmac_sha256(void *ctx,
                                  mongocrypt_binary_t *key,
                                  mongocrypt_binary_t *in,
                                  mongocrypt_binary_t *out,
                                  mongocrypt_status_t *status) {
    _mongocrypt_buffer_t keybuf, inbuf, outbuf;
    _mongocrypt_buffer_from_binary(&keybuf, key);
    _mongocrypt_buffer_from_binary(&inbuf, in);
    _mongocrypt_buffer_from_binary(&outbuf, out);

    return _native_crypto_hmac_sha_256(&keybuf, &inbuf, &outbuf, status);
}

bool _error_hook_native_crypto_aes_256_cbc_encrypt(void *ctx,
                                                   mongocrypt_binary_t *key,
                                                   mongocrypt_binary_t *iv,
                                                   mongocrypt_binary_t *in,
                                                   mongocrypt_binary_t *out,
                                                   uint32_t *bytes_written,
                                                   mongocrypt_status_t *status) {
    CLIENT_ERR("aes_256_cbc_encrypt not expected to have been called");
    return false;
}

bool _error_hook_native_crypto_aes_256_cbc_decrypt(void *ctx,
                                                   mongocrypt_binary_t *key,
                                                   mongocrypt_binary_t *iv,
                                                   mongocrypt_binary_t *in,
                                                   mongocrypt_binary_t *out,
                                                   uint32_t *bytes_written,
                                                   mongocrypt_status_t *status) {
    CLIENT_ERR("aes_256_cbc_decrypt not expected to have been called");
    return false;
}

bool _error_hook_native_crypto_random(void *ctx,
                                      mongocrypt_binary_t *out,
                                      uint32_t count,
                                      mongocrypt_status_t *status) {
    CLIENT_ERR("crypto_random not expected to have been called");
    return false;
}

bool _error_hook_native_hmac_sha512(void *ctx,
                                    mongocrypt_binary_t *key,
                                    mongocrypt_binary_t *in,
                                    mongocrypt_binary_t *out,
                                    mongocrypt_status_t *status) {
    CLIENT_ERR("hmac_sha512 not expected to have been called");
    return false;
}

bool _error_hook_native_hmac_sha256(void *ctx,
                                    mongocrypt_binary_t *key,
                                    mongocrypt_binary_t *in,
                                    mongocrypt_binary_t *out,
                                    mongocrypt_status_t *status) {
    CLIENT_ERR("hmac_sha256 not expected to have been called");
    return false;
}

bool _error_hook_native_sha256(void *ctx,
                               mongocrypt_binary_t *in,
                               mongocrypt_binary_t *out,
                               mongocrypt_status_t *status) {
    CLIENT_ERR("sha256 not expected to have been called");
    return false;
}