mirror of
				https://github.com/ossrs/srs.git
				synced 2025-03-09 15:49:59 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			95 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			95 lines
		
	
	
	
		
			2.2 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * Copyright 2016 The OpenSSL Project Authors. 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
 | |
|  */
 | |
| 
 | |
| #ifndef OSSL_ENGINES_E_AFALG_H
 | |
| # define OSSL_ENGINES_E_AFALG_H
 | |
| 
 | |
| # if defined(__GNUC__) && __GNUC__ >= 4 && \
 | |
|      (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901L)
 | |
| #  pragma GCC diagnostic ignored "-Wvariadic-macros"
 | |
| # endif
 | |
| 
 | |
| # ifdef ALG_DEBUG
 | |
| #  define ALG_DGB(x, ...) fprintf(stderr, "ALG_DBG: " x, __VA_ARGS__)
 | |
| #  define ALG_INFO(x, ...) fprintf(stderr, "ALG_INFO: " x, __VA_ARGS__)
 | |
| #  define ALG_WARN(x, ...) fprintf(stderr, "ALG_WARN: " x, __VA_ARGS__)
 | |
| # else
 | |
| #  define ALG_DGB(x, ...)
 | |
| #  define ALG_INFO(x, ...)
 | |
| #  define ALG_WARN(x, ...)
 | |
| # endif
 | |
| 
 | |
| # define ALG_ERR(x, ...) fprintf(stderr, "ALG_ERR: " x, __VA_ARGS__)
 | |
| # define ALG_PERR(x, ...) \
 | |
|                 do { \
 | |
|                     fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \
 | |
|                     perror(NULL); \
 | |
|                 } while(0)
 | |
| # define ALG_PWARN(x, ...) \
 | |
|                 do { \
 | |
|                     fprintf(stderr, "ALG_PERR: " x, __VA_ARGS__); \
 | |
|                     perror(NULL); \
 | |
|                 } while(0)
 | |
| 
 | |
| # ifndef AES_BLOCK_SIZE
 | |
| #  define AES_BLOCK_SIZE   16
 | |
| # endif
 | |
| # define AES_KEY_SIZE_128 16
 | |
| # define AES_KEY_SIZE_192 24
 | |
| # define AES_KEY_SIZE_256 32
 | |
| # define AES_IV_LEN       16
 | |
| 
 | |
| # define MAX_INFLIGHTS 1
 | |
| 
 | |
| typedef enum {
 | |
|     MODE_UNINIT = 0,
 | |
|     MODE_SYNC,
 | |
|     MODE_ASYNC
 | |
| } op_mode;
 | |
| 
 | |
| enum {
 | |
|     AES_CBC_128 = 0,
 | |
|     AES_CBC_192,
 | |
|     AES_CBC_256
 | |
| };
 | |
| 
 | |
| struct cbc_cipher_handles {
 | |
|     int key_size;
 | |
|     EVP_CIPHER *_hidden;
 | |
| };
 | |
| 
 | |
| typedef struct cbc_cipher_handles cbc_handles;
 | |
| 
 | |
| struct afalg_aio_st {
 | |
|     int efd;
 | |
|     op_mode mode;
 | |
|     aio_context_t aio_ctx;
 | |
|     struct io_event events[MAX_INFLIGHTS];
 | |
|     struct iocb cbt[MAX_INFLIGHTS];
 | |
| };
 | |
| typedef struct afalg_aio_st afalg_aio;
 | |
| 
 | |
| /*
 | |
|  * MAGIC Number to identify correct initialisation
 | |
|  * of afalg_ctx.
 | |
|  */
 | |
| # define MAGIC_INIT_NUM 0x1890671
 | |
| 
 | |
| struct afalg_ctx_st {
 | |
|     int init_done;
 | |
|     int sfd;
 | |
|     int bfd;
 | |
| # ifdef ALG_ZERO_COPY
 | |
|     int zc_pipe[2];
 | |
| # endif
 | |
|     afalg_aio aio;
 | |
| };
 | |
| 
 | |
| typedef struct afalg_ctx_st afalg_ctx;
 | |
| #endif
 |