1656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* crypto/evp/bio_enc.c */ 2656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * All rights reserved. 4656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 5656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This package is an SSL implementation written 6656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * by Eric Young (eay@cryptsoft.com). 7656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The implementation was written so as to conform with Netscapes SSL. 8656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 9656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This library is free for commercial and non-commercial use as long as 10656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the following conditions are aheared to. The following conditions 11656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * apply to all code found in this distribution, be it the RC4, RSA, 12656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * included with this distribution is covered by the same copyright terms 14656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 16656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Copyright remains Eric Young's, and as such any Copyright notices in 17656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the code are not to be removed. 18656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * If this package is used in a product, Eric Young should be given attribution 19656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * as the author of the parts of the library used. 20656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * This can be in the form of a textual message at program startup or 21656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * in documentation (online or textual) provided with the package. 22656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 23656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Redistribution and use in source and binary forms, with or without 24656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * modification, are permitted provided that the following conditions 25656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * are met: 26656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 1. Redistributions of source code must retain the copyright 27656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer. 28656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 29656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * notice, this list of conditions and the following disclaimer in the 30656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation and/or other materials provided with the distribution. 31656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 3. All advertising materials mentioning features or use of this software 32656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * must display the following acknowledgement: 33656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes cryptographic software written by 34656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * Eric Young (eay@cryptsoft.com)" 35656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The word 'cryptographic' can be left out if the rouines from the library 36656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * being used are not cryptographic related :-). 37656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 4. If you include any Windows specific code (or a derivative thereof) from 38656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the apps directory (application code) you must include an acknowledgement: 39656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 41656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * SUCH DAMAGE. 52656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * 53656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * The licence and distribution terms for any publically available version or 54656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * derivative of this code cannot be changed. i.e. this code cannot simply be 55656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * copied and put under another distribution licence 56656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * [including the GNU Public Licence.] 57656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 58656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 59656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <stdio.h> 60656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <errno.h> 61656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include "cryptlib.h" 62656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/buffer.h> 63656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#include <openssl/evp.h> 64656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 65656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_write(BIO *h, const char *buf, int num); 66656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_read(BIO *h, char *buf, int size); 67656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/*static int enc_puts(BIO *h, const char *str); */ 68656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/*static int enc_gets(BIO *h, char *str, int size); */ 69656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic long enc_ctrl(BIO *h, int cmd, long arg1, void *arg2); 70656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_new(BIO *h); 71656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_free(BIO *data); 72656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic long enc_callback_ctrl(BIO *h, int cmd, bio_info_cb *fps); 73656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define ENC_BLOCK_SIZE (1024*4) 74656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project#define BUF_OFFSET (EVP_MAX_BLOCK_LENGTH*2) 75656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 76656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projecttypedef struct enc_struct 77656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 78656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int buf_len; 79656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int buf_off; 80656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int cont; /* <= 0 when finished */ 81656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int finished; 82656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ok; /* bad decrypt */ 83656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CIPHER_CTX cipher; 84656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* buf is larger than ENC_BLOCK_SIZE because EVP_DecryptUpdate 85656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * can return up to a block more data than is presented to it 86656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 87656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project char buf[ENC_BLOCK_SIZE+BUF_OFFSET+2]; 88656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } BIO_ENC_CTX; 89656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 90656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic BIO_METHOD methods_enc= 91656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 92656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_TYPE_CIPHER,"cipher", 93656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc_write, 94656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc_read, 95656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project NULL, /* enc_puts, */ 96656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project NULL, /* enc_gets, */ 97656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc_ctrl, 98656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc_new, 99656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc_free, 100656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project enc_callback_ctrl, 101656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project }; 102656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 103656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectBIO_METHOD *BIO_f_cipher(void) 104656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 105656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(&methods_enc); 106656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 107656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 108656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_new(BIO *bi) 109656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 110656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_ENC_CTX *ctx; 111656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 112656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx=(BIO_ENC_CTX *)OPENSSL_malloc(sizeof(BIO_ENC_CTX)); 113656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ctx == NULL) return(0); 114656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CIPHER_CTX_init(&ctx->cipher); 115656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 116656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_len=0; 117656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=0; 118656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->cont=1; 119656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->finished=0; 120656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->ok=1; 121656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 122656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bi->init=0; 123656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bi->ptr=(char *)ctx; 124656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project bi->flags=0; 125656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 126656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 127656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 128656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_free(BIO *a) 129656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 130656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_ENC_CTX *b; 131656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 132656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (a == NULL) return(0); 133656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b=(BIO_ENC_CTX *)a->ptr; 134656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CIPHER_CTX_cleanup(&(b->cipher)); 135656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_cleanse(a->ptr,sizeof(BIO_ENC_CTX)); 136656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project OPENSSL_free(a->ptr); 137656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->ptr=NULL; 138656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->init=0; 139656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project a->flags=0; 140656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(1); 141656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 142656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 143656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_read(BIO *b, char *out, int outl) 144656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 145656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret=0,i; 146656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_ENC_CTX *ctx; 147656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 148656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (out == NULL) return(0); 149656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx=(BIO_ENC_CTX *)b->ptr; 150656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 151656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((ctx == NULL) || (b->next_bio == NULL)) return(0); 152656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 153656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* First check if there are bytes decoded/encoded */ 154656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ctx->buf_len > 0) 155656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 156656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=ctx->buf_len-ctx->buf_off; 157656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i > outl) i=outl; 158656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(out,&(ctx->buf[ctx->buf_off]),i); 159656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=i; 160656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project out+=i; 161656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project outl-=i; 162656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off+=i; 163656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ctx->buf_len == ctx->buf_off) 164656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 165656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_len=0; 166656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=0; 167656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 168656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 169656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 170656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* At this point, we have room of outl bytes and an empty 171656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * buffer, so we should read in some more. */ 172656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 173656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (outl > 0) 174656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 175656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ctx->cont <= 0) break; 176656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 177656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* read in at IV offset, read the EVP_Cipher 178656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * documentation about why */ 179656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=BIO_read(b->next_bio,&(ctx->buf[BUF_OFFSET]),ENC_BLOCK_SIZE); 180656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 181656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) 182656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 183656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Should be continue next time we are called? */ 184656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!BIO_should_retry(b->next_bio)) 185656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 186656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->cont=i; 187656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=EVP_CipherFinal_ex(&(ctx->cipher), 188656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned char *)ctx->buf, 189656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project &(ctx->buf_len)); 190656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->ok=i; 191656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=0; 192656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 193656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 194656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 195656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=(ret == 0)?i:ret; 196656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 197656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 198656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 199656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 200656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 201656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CipherUpdate(&(ctx->cipher), 202656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned char *)ctx->buf,&ctx->buf_len, 203656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned char *)&(ctx->buf[BUF_OFFSET]),i); 204656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->cont=1; 205656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Note: it is possible for EVP_CipherUpdate to 206656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * decrypt zero bytes because this is or looks like 207656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * the final block: if this happens we should retry 208656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * and either read more data or decrypt the final 209656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project * block 210656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project */ 211656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if(ctx->buf_len == 0) continue; 212656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 213656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 214656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ctx->buf_len <= outl) 215656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=ctx->buf_len; 216656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 217656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=outl; 218656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) break; 219656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(out,ctx->buf,i); 220656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret+=i; 221656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=i; 222656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project outl-=i; 223656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project out+=i; 224656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 225656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 226656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_clear_retry_flags(b); 227656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_copy_next_retry(b); 228656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return((ret == 0)?ctx->cont:ret); 229656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 230656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 231656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic int enc_write(BIO *b, const char *in, int inl) 232656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 233656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int ret=0,n,i; 234656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_ENC_CTX *ctx; 235656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 236656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx=(BIO_ENC_CTX *)b->ptr; 237656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=inl; 238656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 239656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_clear_retry_flags(b); 240656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=ctx->buf_len-ctx->buf_off; 241656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (n > 0) 242656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 243656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n); 244656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) 245656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 246656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_copy_next_retry(b); 247656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(i); 248656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 249656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off+=i; 250656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n-=i; 251656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 252656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* at this point all pending data has been written */ 253656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 254656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((in == NULL) || (inl <= 0)) return(0); 255656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 256656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=0; 257656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (inl > 0) 258656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 259656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=(inl > ENC_BLOCK_SIZE)?ENC_BLOCK_SIZE:inl; 260656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CipherUpdate(&(ctx->cipher), 261656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned char *)ctx->buf,&ctx->buf_len, 262656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned char *)in,n); 263656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project inl-=n; 264656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project in+=n; 265656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 266656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=0; 267656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n=ctx->buf_len; 268656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (n > 0) 269656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 270656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n); 271656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i <= 0) 272656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 273656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_copy_next_retry(b); 274656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return (ret == inl) ? i : ret - inl; 275656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 276656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project n-=i; 277656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off+=i; 278656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 279656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_len=0; 280656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=0; 281656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 282656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_copy_next_retry(b); 283656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 284656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 285656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 286656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic long enc_ctrl(BIO *b, int cmd, long num, void *ptr) 287656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 288656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO *dbio; 289656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_ENC_CTX *ctx,*dctx; 290656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long ret=1; 291656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project int i; 292656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CIPHER_CTX **c_ctx; 293656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 294656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx=(BIO_ENC_CTX *)b->ptr; 295656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 296656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch (cmd) 297656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 298656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_RESET: 299656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->ok=1; 300656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->finished=0; 301656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CipherInit_ex(&(ctx->cipher),NULL,NULL,NULL,NULL, 302656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->cipher.encrypt); 303656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 304656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 305656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_EOF: /* More to read */ 306656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ctx->cont <= 0) 307656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=1; 308656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project else 309656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 310656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 311656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_WPENDING: 312656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ctx->buf_len-ctx->buf_off; 313656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) 314656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 315656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 316656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_PENDING: /* More to read in buffer */ 317656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=ctx->buf_len-ctx->buf_off; 318656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) 319656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 320656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 321656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_FLUSH: 322656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* do a final write */ 323656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectagain: 324656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project while (ctx->buf_len != ctx->buf_off) 325656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 326656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project i=enc_write(b,NULL,0); 327656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (i < 0) 328656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return i; 329656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 330656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 331656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (!ctx->finished) 332656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 333656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->finished=1; 334656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->buf_off=0; 335656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=EVP_CipherFinal_ex(&(ctx->cipher), 336656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (unsigned char *)ctx->buf, 337656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project &(ctx->buf_len)); 338656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx->ok=(int)ret; 339656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (ret <= 0) break; 340656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 341656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* push out the bytes */ 342656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project goto again; 343656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 344656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 345656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project /* Finally flush the underlying BIO */ 346656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 347656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 348656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_C_GET_CIPHER_STATUS: 349656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=(long)ctx->ok; 350656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 351656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_C_DO_STATE_MACHINE: 352656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_clear_retry_flags(b); 353656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 354656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_copy_next_retry(b); 355656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 356656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_C_GET_CIPHER_CTX: 357656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project c_ctx=(EVP_CIPHER_CTX **)ptr; 358656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (*c_ctx)= &(ctx->cipher); 359656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->init=1; 360656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 361656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project case BIO_CTRL_DUP: 362656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dbio=(BIO *)ptr; 363656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project dctx=(BIO_ENC_CTX *)dbio->ptr; 364221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom EVP_CIPHER_CTX_init(&dctx->cipher); 365221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom ret = EVP_CIPHER_CTX_copy(&dctx->cipher,&ctx->cipher); 366221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom if (ret) 367221304ee937bc0910948a8be1320cb8cc4eb6d36Brian Carlstrom dbio->init=1; 368656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 369656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 370656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_ctrl(b->next_bio,cmd,num,ptr); 371656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 372656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 373656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 374656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 375656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 376656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectstatic long enc_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp) 377656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 378656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project long ret=1; 379656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 380656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (b->next_bio == NULL) return(0); 381656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project switch (cmd) 382656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 383656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project default: 384656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ret=BIO_callback_ctrl(b->next_bio,cmd,fp); 385656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project break; 386656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 387656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return(ret); 388656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 389656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 390656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project/* 391656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid BIO_set_cipher_ctx(b,c) 392656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectBIO *b; 393656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source ProjectEVP_CIPHER_ctx *c; 394656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 395656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (b == NULL) return; 396656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 397656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((b->callback != NULL) && 398656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,0L) <= 0)) 399656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return; 400656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 401656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->init=1; 402656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx=(BIO_ENC_CTX *)b->ptr; 403656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project memcpy(ctx->cipher,c,sizeof(EVP_CIPHER_CTX)); 404656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 405656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (b->callback != NULL) 406656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,1L); 407656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 408656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project*/ 409656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 410656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Projectvoid BIO_set_cipher(BIO *b, const EVP_CIPHER *c, const unsigned char *k, 411656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project const unsigned char *i, int e) 412656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project { 413656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project BIO_ENC_CTX *ctx; 414656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 415656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (b == NULL) return; 416656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 417656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if ((b->callback != NULL) && 418656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project (b->callback(b,BIO_CB_CTRL,(const char *)c,BIO_CTRL_SET,e,0L) <= 0)) 419656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project return; 420656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 421656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->init=1; 422656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project ctx=(BIO_ENC_CTX *)b->ptr; 423656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project EVP_CipherInit_ex(&(ctx->cipher),c,NULL, k,i,e); 424656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 425656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project if (b->callback != NULL) 426656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project b->callback(b,BIO_CB_CTRL,(const char *)c,BIO_CTRL_SET,e,1L); 427656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project } 428656d9c7f52f88b3a3daccafa7655dec086c4756eThe Android Open Source Project 429