Deepa Dinamani | 0a97655 | 2012-11-28 17:01:27 -0800 | [diff] [blame^] | 1 | /* Copyright (c) 2012, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <debug.h> |
| 30 | #include <crypto5_wrapper.h> |
| 31 | |
| 32 | /* This file is a wrapper to the crypto5_eng.c. |
| 33 | * This is required so that we maintian the backward compatibility |
| 34 | * with the authentication logic in image_verify.c |
| 35 | */ |
| 36 | static struct crypto_dev dev; |
| 37 | |
| 38 | void crypto_init_params(struct crypto_init_params * params) |
| 39 | { |
| 40 | crypto5_init_params(&dev, params); |
| 41 | } |
| 42 | |
| 43 | void crypto_eng_cleanup(void) |
| 44 | { |
| 45 | crypto5_cleanup(&dev); |
| 46 | } |
| 47 | |
| 48 | void ce_clock_init(void) |
| 49 | { |
| 50 | /* Clock init is done during crypto_init. */ |
| 51 | } |
| 52 | |
| 53 | void crypto_eng_reset(void) |
| 54 | { |
| 55 | /* Reset tied in with the clock init. */ |
| 56 | } |
| 57 | |
| 58 | void crypto_eng_init(void) |
| 59 | { |
| 60 | crypto5_init(&dev); |
| 61 | } |
| 62 | |
| 63 | void crypto_set_sha_ctx(void *ctx_ptr, |
| 64 | unsigned int bytes_to_write, |
| 65 | crypto_auth_alg_type auth_alg, |
| 66 | bool first, |
| 67 | bool last) |
| 68 | { |
| 69 | crypto_SHA256_ctx *sha256_ctx = (crypto_SHA256_ctx *) ctx_ptr; |
| 70 | |
| 71 | sha256_ctx->flags = 0; |
| 72 | |
| 73 | if (first) |
| 74 | sha256_ctx->flags |= CRYPTO_FIRST_CHUNK; |
| 75 | |
| 76 | if (last) |
| 77 | sha256_ctx->flags |= CRYPTO_LAST_CHUNK; |
| 78 | |
| 79 | sha256_ctx->bytes_to_write = bytes_to_write; |
| 80 | |
| 81 | crypto5_set_ctx(&dev, ctx_ptr, auth_alg); |
| 82 | |
| 83 | /* Clear the flags. */ |
| 84 | sha256_ctx->flags = 0; |
| 85 | } |
| 86 | |
| 87 | void crypto_send_data(void *ctx_ptr, |
| 88 | unsigned char *data_ptr, |
| 89 | unsigned int buff_size, |
| 90 | unsigned int bytes_to_write, |
| 91 | unsigned int *ret_status) |
| 92 | { |
| 93 | *ret_status = crypto5_send_data(&dev, ctx_ptr, data_ptr); |
| 94 | } |
| 95 | |
| 96 | void crypto_get_digest(unsigned char *digest_ptr, |
| 97 | unsigned int *ret_status, |
| 98 | crypto_auth_alg_type auth_alg, |
| 99 | bool last) |
| 100 | { |
| 101 | *ret_status = crypto5_get_digest(&dev, digest_ptr, auth_alg); |
| 102 | } |
| 103 | |
| 104 | void crypto_get_ctx(void *ctx_ptr) |
| 105 | { |
| 106 | crypto5_get_ctx(&dev, ctx_ptr); |
| 107 | } |
| 108 | |
| 109 | uint32_t crypto_get_max_auth_blk_size() |
| 110 | { |
| 111 | return crypto5_get_max_auth_blk_size(&dev); |
| 112 | } |