1 /* 2 * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #ifndef OSSL_ENGINES_E_AFALG_H 11 # define OSSL_ENGINES_E_AFALG_H 12 13 # if defined(__GNUC__) && __GNUC__ >= 4 && \ 14 (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L) 15 # pragma GCC diagnostic ignored "-Wvariadic-macros" 16 # endif 17 18 # ifdef ALG_DEBUG 19 # define ALG_DGB(x, ...) fprintf(stderr, "ALG_DBG: " x, __VA_ARGS__) 20 # define ALG_INFO(x, ...) fprintf(stderr, "ALG_INFO: " x, __VA_ARGS__) 21 # define ALG_WARN(x, ...) fprintf(stderr, "ALG_WARN: " x, __VA_ARGS__) 22 # else 23 # define ALG_DGB(x, ...) 24 # define ALG_INFO(x, ...) 25 # define ALG_WARN(x, ...) 26 # endif 27 28 # define ALG_ERR(x, ...) fprintf(stderr, "ALG_ERR: " x, __VA_ARGS__) 29 # define ALG_PERR(x, ...) \ 30 do { \ 31 fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \ 32 perror(NULL); \ 33 } while(0) 34 # define ALG_PWARN(x, ...) \ 35 do { \ 36 fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \ 37 perror(NULL); \ 38 } while(0) 39 40 # ifndef AES_BLOCK_SIZE 41 # define AES_BLOCK_SIZE 16 42 # endif 43 # define AES_KEY_SIZE_128 16 44 # define AES_KEY_SIZE_192 24 45 # define AES_KEY_SIZE_256 32 46 # define AES_IV_LEN 16 47 48 # define MAX_INFLIGHTS 1 49 50 typedef enum { 51 MODE_UNINIT = 0, 52 MODE_SYNC, 53 MODE_ASYNC 54 } op_mode; 55 56 enum { 57 AES_CBC_128 = 0, 58 AES_CBC_192, 59 AES_CBC_256 60 }; 61 62 struct cbc_cipher_handles { 63 int key_size; 64 EVP_CIPHER *_hidden; 65 }; 66 67 typedef struct cbc_cipher_handles cbc_handles; 68 69 struct afalg_aio_st { 70 int efd; 71 op_mode mode; 72 aio_context_t aio_ctx; 73 struct io_event events[MAX_INFLIGHTS]; 74 struct iocb cbt[MAX_INFLIGHTS]; 75 }; 76 typedef struct afalg_aio_st afalg_aio; 77 78 /* 79 * MAGIC Number to identify correct initialisation 80 * of afalg_ctx. 81 */ 82 # define MAGIC_INIT_NUM 0x1890671 83 84 struct afalg_ctx_st { 85 int init_done; 86 int sfd; 87 int bfd; 88 # ifdef ALG_ZERO_COPY 89 int zc_pipe[2]; 90 # endif 91 afalg_aio aio; 92 }; 93 94 typedef struct afalg_ctx_st afalg_ctx; 95 #endif 96