-/* crypto/evp/bio_ok.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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.]
+ * Licensed under the Apache License 2.0 (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
*/
/*-
- From: Arne Ansper <arne@cyber.ee>
+ From: Arne Ansper
Why BIO_f_reliable?
#include <assert.h>
#include "internal/cryptlib.h"
#include <openssl/buffer.h>
-#include <openssl/bio.h>
+#include "internal/bio.h"
#include <openssl/evp.h>
#include <openssl/rand.h>
#include "internal/evp_int.h"
static long ok_ctrl(BIO *h, int cmd, long arg1, void *arg2);
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 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);
unsigned char buf[IOBS];
} BIO_OK_CTX;
-static BIO_METHOD methods_ok = {
- BIO_TYPE_CIPHER, "reliable",
+static const BIO_METHOD methods_ok = {
+ BIO_TYPE_CIPHER,
+ "reliable",
+ /* TODO: Convert to new style write function */
+ bwrite_conv,
ok_write,
+ /* TODO: Convert to new style read function */
+ bread_conv,
ok_read,
NULL, /* ok_puts, */
NULL, /* ok_gets, */
ok_callback_ctrl,
};
-BIO_METHOD *BIO_f_reliable(void)
+const BIO_METHOD *BIO_f_reliable(void)
{
- return (&methods_ok);
+ return &methods_ok;
}
static int ok_new(BIO *bi)
{
BIO_OK_CTX *ctx;
- ctx = OPENSSL_zalloc(sizeof(*ctx));
- if (ctx == NULL)
- return (0);
+ if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) {
+ EVPerr(EVP_F_OK_NEW, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
ctx->cont = 1;
ctx->sigio = 1;
- ctx->md = EVP_MD_CTX_create();
- bi->init = 0;
- bi->ptr = (char *)ctx;
- bi->flags = 0;
- return (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;
}
static int ok_free(BIO *a)
{
+ BIO_OK_CTX *ctx;
+
if (a == NULL)
- return (0);
- EVP_MD_CTX_destroy(((BIO_OK_CTX *)a->ptr)->md);
- OPENSSL_clear_free(a->ptr, sizeof(BIO_OK_CTX));
- a->ptr = NULL;
- a->init = 0;
- a->flags = 0;
- return (1);
+ 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;
}
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);
- ctx = (BIO_OK_CTX *)b->ptr;
+ return 0;
+
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
- if ((ctx == NULL) || (b->next_bio == NULL) || (b->init == 0))
- return (0);
+ if ((ctx == NULL) || (next == NULL) || (BIO_get_init(b) == 0))
+ return 0;
while (outl > 0) {
/* no clean bytes in buffer -- fill it */
n = IOBS - ctx->buf_len;
- i = BIO_read(b->next_bio, &(ctx->buf[ctx->buf_len]), n);
+ i = BIO_read(next, &(ctx->buf[ctx->buf_len]), n);
if (i <= 0)
break; /* nothing new */
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_OK_CTX *)b->ptr;
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
ret = inl;
- if ((ctx == NULL) || (b->next_bio == NULL) || (b->init == 0))
- return (0);
+ if ((ctx == NULL) || (next == NULL) || (BIO_get_init(b) == 0))
+ return 0;
if (ctx->sigio && !sig_out(b))
return 0;
BIO_clear_retry_flags(b);
n = ctx->buf_len - ctx->buf_off;
while (ctx->blockout && n > 0) {
- i = BIO_write(b->next_bio, &(ctx->buf[ctx->buf_off]), n);
+ i = BIO_write(next, &(ctx->buf[ctx->buf_off]), n);
if (i <= 0) {
BIO_copy_next_retry(b);
if (!BIO_should_retry(b))
ctx->cont = 0;
- return (i);
+ return i;
}
ctx->buf_off += i;
n -= i;
}
if ((in == NULL) || (inl <= 0))
- return (0);
+ return 0;
n = (inl + ctx->buf_len > OK_BLOCK_SIZE + OK_BLOCK_BLOCK) ?
(int)(OK_BLOCK_SIZE + OK_BLOCK_BLOCK - ctx->buf_len) : inl;
BIO_clear_retry_flags(b);
BIO_copy_next_retry(b);
- return (ret);
+ return ret;
}
static long ok_ctrl(BIO *b, int cmd, long num, void *ptr)
const EVP_MD **ppmd;
long ret = 1;
int i;
+ BIO *next;
- ctx = b->ptr;
+ ctx = BIO_get_data(b);
+ next = BIO_next(b);
switch (cmd) {
case BIO_CTRL_RESET:
ctx->finished = 0;
ctx->blockout = 0;
ctx->sigio = 1;
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_CTRL_EOF: /* More to read */
if (ctx->cont <= 0)
ret = 1;
else
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, 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(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_CTRL_FLUSH:
/* do a final write */
ctx->cont = (int)ret;
/* Finally flush the underlying BIO */
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
case BIO_C_DO_STATE_MACHINE:
BIO_clear_retry_flags(b);
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
BIO_copy_next_retry(b);
break;
case BIO_CTRL_INFO:
md = ptr;
if (!EVP_DigestInit_ex(ctx->md, md, NULL))
return 0;
- b->init = 1;
+ BIO_set_init(b, 1);
break;
case BIO_C_GET_MD:
- if (b->init) {
+ if (BIO_get_init(b)) {
ppmd = ptr;
*ppmd = EVP_MD_CTX_md(ctx->md);
} else
ret = 0;
break;
default:
- ret = BIO_ctrl(b->next_bio, cmd, num, ptr);
+ ret = BIO_ctrl(next, cmd, num, ptr);
break;
}
- return (ret);
+ return ret;
}
-static long ok_callback_ctrl(BIO *b, int cmd, bio_info_cb *fp)
+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(b->next_bio, cmd, fp);
+ ret = BIO_callback_ctrl(next, cmd, fp);
break;
}
- return (ret);
+
+ return ret;
}
static void longswap(void *_ptr, size_t len)
int md_size;
void *md_data;
- ctx = b->ptr;
+ ctx = BIO_get_data(b);
md = ctx->md;
digest = EVP_MD_CTX_md(md);
md_size = EVP_MD_size(digest);
int md_size;
void *md_data;
- ctx = b->ptr;
+ ctx = BIO_get_data(b);
md = ctx->md;
digest = EVP_MD_CTX_md(md);
md_size = EVP_MD_size(digest);
const EVP_MD *digest;
int md_size;
- ctx = b->ptr;
+ ctx = BIO_get_data(b);
md = ctx->md;
digest = EVP_MD_CTX_md(md);
md_size = EVP_MD_size(digest);
unsigned char tmp[EVP_MAX_MD_SIZE];
int md_size;
- ctx = b->ptr;
+ ctx = BIO_get_data(b);
md = ctx->md;
md_size = EVP_MD_size(EVP_MD_CTX_md(md));
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