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This commit is contained in:
zhaoxiaomeng
2018-01-04 13:38:57 +08:00
committed by Simon
parent d11f845fde
commit 53af3b51ae
2361 changed files with 387455 additions and 144458 deletions
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260
crypto/evp/bio_ok.c
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@@ -1,10 +1,59 @@
/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
/* crypto/evp/bio_ok.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* 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
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
/*-
@@ -71,12 +120,11 @@
#include <stdio.h>
#include <errno.h>
#include <assert.h>
#include "internal/cryptlib.h"
#include "cryptlib.h"
#include <openssl/buffer.h>
#include "internal/bio.h"
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include "internal/evp_int.h"
static int ok_write(BIO *h, const char *buf, int num);
static int ok_read(BIO *h, char *buf, int size);
@@ -85,10 +133,10 @@ static int ok_new(BIO *h);
static int ok_free(BIO *data);
static long ok_callback_ctrl(BIO *h, int cmd, bio_info_cb *fp);
static __owur int sig_out(BIO *b);
static __owur int sig_in(BIO *b);
static __owur int block_out(BIO *b);
static __owur int block_in(BIO *b);
static int sig_out(BIO *b);
static int sig_in(BIO *b);
static int block_out(BIO *b);
static int block_in(BIO *b);
#define OK_BLOCK_SIZE (1024*4)
#define OK_BLOCK_BLOCK 4
#define IOBS (OK_BLOCK_SIZE+ OK_BLOCK_BLOCK+ 3*EVP_MAX_MD_SIZE)
@@ -101,13 +149,13 @@ typedef struct ok_struct {
size_t buf_off_save;
int cont; /* <= 0 when finished */
int finished;
EVP_MD_CTX *md;
EVP_MD_CTX md;
int blockout; /* output block is ready */
int sigio; /* must process signature */
unsigned char buf[IOBS];
} BIO_OK_CTX;
static const BIO_METHOD methods_ok = {
static BIO_METHOD methods_ok = {
BIO_TYPE_CIPHER, "reliable",
ok_write,
ok_read,
@@ -119,7 +167,7 @@ static const BIO_METHOD methods_ok = {
ok_callback_ctrl,
};
const BIO_METHOD *BIO_f_reliable(void)
BIO_METHOD *BIO_f_reliable(void)
{
return (&methods_ok);
}
@@ -128,54 +176,51 @@ static int ok_new(BIO *bi)
{
BIO_OK_CTX *ctx;
ctx = OPENSSL_zalloc(sizeof(*ctx));
ctx = (BIO_OK_CTX *)OPENSSL_malloc(sizeof(BIO_OK_CTX));
if (ctx == NULL)
return 0;
return (0);
ctx->buf_len = 0;
ctx->buf_off = 0;
ctx->buf_len_save = 0;
ctx->buf_off_save = 0;
ctx->cont = 1;
ctx->finished = 0;
ctx->blockout = 0;
ctx->sigio = 1;
ctx->md = EVP_MD_CTX_new();
if (ctx->md == NULL) {
OPENSSL_free(ctx);
return 0;
}
BIO_set_init(bi, 0);
BIO_set_data(bi, ctx);
return 1;
EVP_MD_CTX_init(&ctx->md);
bi->init = 0;
bi->ptr = (char *)ctx;
bi->flags = 0;
return (1);
}
static int ok_free(BIO *a)
{
BIO_OK_CTX *ctx;
if (a == NULL)
return 0;
ctx = BIO_get_data(a);
EVP_MD_CTX_free(ctx->md);
OPENSSL_clear_free(ctx, sizeof(BIO_OK_CTX));
BIO_set_data(a, NULL);
BIO_set_init(a, 0);
return 1;
return (0);
EVP_MD_CTX_cleanup(&((BIO_OK_CTX *)a->ptr)->md);
OPENSSL_cleanse(a->ptr, sizeof(BIO_OK_CTX));
OPENSSL_free(a->ptr);
a->ptr = NULL;
a->init = 0;
a->flags = 0;
return (1);
}
static int ok_read(BIO *b, char *out, int outl)
{
int ret = 0, i, n;
BIO_OK_CTX *ctx;
BIO *next;
if (out == NULL)
return 0;
return (0);
ctx = (BIO_OK_CTX *)b->ptr;
ctx = BIO_get_data(b);
next = BIO_next(b);
if ((ctx == NULL) || (next == NULL) || (BIO_get_init(b) == 0))
return 0;
if ((ctx == NULL) || (b->next_bio == NULL) || (b->init == 0))
return (0);
while (outl > 0) {
@@ -214,7 +259,7 @@ static int ok_read(BIO *b, char *out, int outl)
/* no clean bytes in buffer -- fill it */
n = IOBS - ctx->buf_len;
i = BIO_read(next, &(ctx->buf[ctx->buf_len]), n);
i = BIO_read(b->next_bio, &(ctx->buf[ctx->buf_len]), n);
if (i <= 0)
break; /* nothing new */
@@ -245,23 +290,21 @@ static int ok_read(BIO *b, char *out, int outl)
BIO_clear_retry_flags(b);
BIO_copy_next_retry(b);
return ret;
return (ret);
}
static int ok_write(BIO *b, const char *in, int inl)
{
int ret = 0, n, i;
BIO_OK_CTX *ctx;
BIO *next;
if (inl <= 0)
return inl;
ctx = BIO_get_data(b);
next = BIO_next(b);
ctx = (BIO_OK_CTX *)b->ptr;
ret = inl;
if ((ctx == NULL) || (next == NULL) || (BIO_get_init(b) == 0))
if ((ctx == NULL) || (b->next_bio == NULL) || (b->init == 0))
return (0);
if (ctx->sigio && !sig_out(b))
@@ -271,7 +314,7 @@ static int ok_write(BIO *b, const char *in, int inl)
BIO_clear_retry_flags(b);
n = ctx->buf_len - ctx->buf_off;
while (ctx->blockout && n > 0) {
i = BIO_write(next, &(ctx->buf[ctx->buf_off]), n);
i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n);
if (i <= 0) {
BIO_copy_next_retry(b);
if (!BIO_should_retry(b))
@@ -295,7 +338,8 @@ static int ok_write(BIO *b, const char *in, int inl)
n = (inl + ctx->buf_len > OK_BLOCK_SIZE + OK_BLOCK_BLOCK) ?
(int)(OK_BLOCK_SIZE + OK_BLOCK_BLOCK - ctx->buf_len) : inl;
memcpy(&ctx->buf[ctx->buf_len], in, n);
memcpy((unsigned char *)(&(ctx->buf[ctx->buf_len])),
(unsigned char *)in, n);
ctx->buf_len += n;
inl -= n;
in += n;
@@ -320,10 +364,8 @@ static long ok_ctrl(BIO *b, int cmd, long num, void *ptr)
const EVP_MD **ppmd;
long ret = 1;
int i;
BIO *next;
ctx = BIO_get_data(b);
next = BIO_next(b);
ctx = b->ptr;
switch (cmd) {
case BIO_CTRL_RESET:
@@ -335,19 +377,19 @@ static long ok_ctrl(BIO *b, int cmd, long num, void *ptr)
ctx->finished = 0;
ctx->blockout = 0;
ctx->sigio = 1;
ret = BIO_ctrl(next, cmd, num, ptr);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_CTRL_EOF: /* More to read */
if (ctx->cont <= 0)
ret = 1;
else
ret = BIO_ctrl(next, cmd, num, ptr);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_CTRL_PENDING: /* More to read in buffer */
case BIO_CTRL_WPENDING: /* More to read in buffer */
ret = ctx->blockout ? ctx->buf_len - ctx->buf_off : 0;
if (ret <= 0)
ret = BIO_ctrl(next, cmd, num, ptr);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_CTRL_FLUSH:
/* do a final write */
@@ -368,11 +410,11 @@ static long ok_ctrl(BIO *b, int cmd, long num, void *ptr)
ctx->cont = (int)ret;
/* Finally flush the underlying BIO */
ret = BIO_ctrl(next, cmd, num, ptr);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
case BIO_C_DO_STATE_MACHINE:
BIO_clear_retry_flags(b);
ret = BIO_ctrl(next, cmd, num, ptr);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
BIO_copy_next_retry(b);
break;
case BIO_CTRL_INFO:
@@ -380,41 +422,36 @@ static long ok_ctrl(BIO *b, int cmd, long num, void *ptr)
break;
case BIO_C_SET_MD:
md = ptr;
if (!EVP_DigestInit_ex(ctx->md, md, NULL))
if (!EVP_DigestInit_ex(&ctx->md, md, NULL))
return 0;
BIO_set_init(b, 1);
b->init = 1;
break;
case BIO_C_GET_MD:
if (BIO_get_init(b)) {
if (b->init) {
ppmd = ptr;
*ppmd = EVP_MD_CTX_md(ctx->md);
*ppmd = ctx->md.digest;
} else
ret = 0;
break;
default:
ret = BIO_ctrl(next, cmd, num, ptr);
ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
break;
}
return ret;
return (ret);
}
static long ok_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
{
long ret = 1;
BIO *next;
next = BIO_next(b);
if (next == NULL)
return 0;
if (b->next_bio == NULL)
return (0);
switch (cmd) {
default:
ret = BIO_callback_ctrl(next, cmd, fp);
ret = BIO_callback_ctrl(b->next_bio, cmd, fp);
break;
}
return ret;
return (ret);
}
static void longswap(void *_ptr, size_t len)
@@ -441,36 +478,30 @@ static int sig_out(BIO *b)
{
BIO_OK_CTX *ctx;
EVP_MD_CTX *md;
const EVP_MD *digest;
int md_size;
void *md_data;
ctx = BIO_get_data(b);
md = ctx->md;
digest = EVP_MD_CTX_md(md);
md_size = EVP_MD_size(digest);
md_data = EVP_MD_CTX_md_data(md);
ctx = b->ptr;
md = &ctx->md;
if (ctx->buf_len + 2 * md_size > OK_BLOCK_SIZE)
if (ctx->buf_len + 2 * md->digest->md_size > OK_BLOCK_SIZE)
return 1;
if (!EVP_DigestInit_ex(md, digest, NULL))
if (!EVP_DigestInit_ex(md, md->digest, NULL))
goto berr;
/*
* FIXME: there's absolutely no guarantee this makes any sense at all,
* particularly now EVP_MD_CTX has been restructured.
*/
if (RAND_bytes(md_data, md_size) <= 0)
if (RAND_bytes(md->md_data, md->digest->md_size) <= 0)
goto berr;
memcpy(&(ctx->buf[ctx->buf_len]), md_data, md_size);
longswap(&(ctx->buf[ctx->buf_len]), md_size);
ctx->buf_len += md_size;
memcpy(&(ctx->buf[ctx->buf_len]), md->md_data, md->digest->md_size);
longswap(&(ctx->buf[ctx->buf_len]), md->digest->md_size);
ctx->buf_len += md->digest->md_size;
if (!EVP_DigestUpdate(md, WELLKNOWN, strlen(WELLKNOWN)))
goto berr;
if (!EVP_DigestFinal_ex(md, &(ctx->buf[ctx->buf_len]), NULL))
goto berr;
ctx->buf_len += md_size;
ctx->buf_len += md->digest->md_size;
ctx->blockout = 1;
ctx->sigio = 0;
return 1;
@@ -485,31 +516,25 @@ static int sig_in(BIO *b)
EVP_MD_CTX *md;
unsigned char tmp[EVP_MAX_MD_SIZE];
int ret = 0;
const EVP_MD *digest;
int md_size;
void *md_data;
ctx = BIO_get_data(b);
md = ctx->md;
digest = EVP_MD_CTX_md(md);
md_size = EVP_MD_size(digest);
md_data = EVP_MD_CTX_md_data(md);
ctx = b->ptr;
md = &ctx->md;
if ((int)(ctx->buf_len - ctx->buf_off) < 2 * md_size)
if ((int)(ctx->buf_len - ctx->buf_off) < 2 * md->digest->md_size)
return 1;
if (!EVP_DigestInit_ex(md, digest, NULL))
if (!EVP_DigestInit_ex(md, md->digest, NULL))
goto berr;
memcpy(md_data, &(ctx->buf[ctx->buf_off]), md_size);
longswap(md_data, md_size);
ctx->buf_off += md_size;
memcpy(md->md_data, &(ctx->buf[ctx->buf_off]), md->digest->md_size);
longswap(md->md_data, md->digest->md_size);
ctx->buf_off += md->digest->md_size;
if (!EVP_DigestUpdate(md, WELLKNOWN, strlen(WELLKNOWN)))
goto berr;
if (!EVP_DigestFinal_ex(md, tmp, NULL))
goto berr;
ret = memcmp(&(ctx->buf[ctx->buf_off]), tmp, md_size) == 0;
ctx->buf_off += md_size;
ret = memcmp(&(ctx->buf[ctx->buf_off]), tmp, md->digest->md_size) == 0;
ctx->buf_off += md->digest->md_size;
if (ret == 1) {
ctx->sigio = 0;
if (ctx->buf_len != ctx->buf_off) {
@@ -532,13 +557,9 @@ static int block_out(BIO *b)
BIO_OK_CTX *ctx;
EVP_MD_CTX *md;
unsigned long tl;
const EVP_MD *digest;
int md_size;
ctx = BIO_get_data(b);
md = ctx->md;
digest = EVP_MD_CTX_md(md);
md_size = EVP_MD_size(digest);
ctx = b->ptr;
md = &ctx->md;
tl = ctx->buf_len - OK_BLOCK_BLOCK;
ctx->buf[0] = (unsigned char)(tl >> 24);
@@ -550,7 +571,7 @@ static int block_out(BIO *b)
goto berr;
if (!EVP_DigestFinal_ex(md, &(ctx->buf[ctx->buf_len]), NULL))
goto berr;
ctx->buf_len += md_size;
ctx->buf_len += md->digest->md_size;
ctx->blockout = 1;
return 1;
berr:
@@ -564,11 +585,9 @@ static int block_in(BIO *b)
EVP_MD_CTX *md;
unsigned long tl = 0;
unsigned char tmp[EVP_MAX_MD_SIZE];
int md_size;
ctx = BIO_get_data(b);
md = ctx->md;
md_size = EVP_MD_size(EVP_MD_CTX_md(md));
ctx = b->ptr;
md = &ctx->md;
assert(sizeof(tl) >= OK_BLOCK_BLOCK); /* always true */
tl = ctx->buf[0];
@@ -579,7 +598,7 @@ static int block_in(BIO *b)
tl <<= 8;
tl |= ctx->buf[3];
if (ctx->buf_len < tl + OK_BLOCK_BLOCK + md_size)
if (ctx->buf_len < tl + OK_BLOCK_BLOCK + md->digest->md_size)
return 1;
if (!EVP_DigestUpdate(md,
@@ -587,9 +606,10 @@ static int block_in(BIO *b)
goto berr;
if (!EVP_DigestFinal_ex(md, tmp, NULL))
goto berr;
if (memcmp(&(ctx->buf[tl + OK_BLOCK_BLOCK]), tmp, md_size) == 0) {
if (memcmp(&(ctx->buf[tl + OK_BLOCK_BLOCK]), tmp, md->digest->md_size) ==
0) {
/* there might be parts from next block lurking around ! */
ctx->buf_off_save = tl + OK_BLOCK_BLOCK + md_size;
ctx->buf_off_save = tl + OK_BLOCK_BLOCK + md->digest->md_size;
ctx->buf_len_save = ctx->buf_len;
ctx->buf_off = OK_BLOCK_BLOCK;
ctx->buf_len = tl + OK_BLOCK_BLOCK;