-/* ssl/record/ssl3_buffer.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * 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.]
- */
-/* ====================================================================
- * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
- *
- * 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 above 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 acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 1995-2016 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
*/
#include "../ssl_locl.h"
+#include "record_locl.h"
-void SSL3_BUFFER_set_data(SSL3_BUFFER *b, const unsigned char *d, int n)
+void SSL3_BUFFER_set_data(SSL3_BUFFER *b, const unsigned char *d, size_t n)
{
- if(d != NULL)
+ if (d != NULL)
memcpy(b->buf, d, n);
b->left = n;
b->offset = 0;
}
+/*
+ * Clear the contents of an SSL3_BUFFER but retain any memory allocated. Also
+ * retains the default_len setting
+ */
+void SSL3_BUFFER_clear(SSL3_BUFFER *b)
+{
+ b->offset = 0;
+ b->left = 0;
+}
+
void SSL3_BUFFER_release(SSL3_BUFFER *b)
{
- if (b->buf != NULL)
- OPENSSL_free(b->buf);
+ OPENSSL_free(b->buf);
b->buf = NULL;
}
unsigned char *p;
size_t len, align = 0, headerlen;
SSL3_BUFFER *b;
-
+
b = RECORD_LAYER_get_rbuf(&s->rlayer);
- if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+ if (SSL_IS_DTLS(s))
headerlen = DTLS1_RT_HEADER_LENGTH;
else
headerlen = SSL3_RT_HEADER_LENGTH;
if (b->buf == NULL) {
len = SSL3_RT_MAX_PLAIN_LENGTH
+ SSL3_RT_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
- if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER) {
- s->s3->init_extra = 1;
- len += SSL3_RT_MAX_EXTRA;
- }
#ifndef OPENSSL_NO_COMP
if (ssl_allow_compression(s))
len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
#endif
+ if (b->default_len > len)
+ len = b->default_len;
if ((p = OPENSSL_malloc(len)) == NULL)
goto err;
b->buf = p;
b->len = len;
}
- s->packet = &(b->buf[0]);
+ RECORD_LAYER_set_packet(&s->rlayer, &(b->buf[0]));
return 1;
err:
return 0;
}
-int ssl3_setup_write_buffer(SSL *s)
+int ssl3_setup_write_buffer(SSL *s, unsigned int numwpipes, size_t len)
{
unsigned char *p;
- size_t len, align = 0, headerlen;
+ size_t align = 0, headerlen;
SSL3_BUFFER *wb;
+ unsigned int currpipe;
- wb = RECORD_LAYER_get_wbuf(&s->rlayer);
+ s->rlayer.numwpipes = numwpipes;
- if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
- headerlen = DTLS1_RT_HEADER_LENGTH + 1;
- else
- headerlen = SSL3_RT_HEADER_LENGTH;
+ if (len == 0) {
+ if (SSL_IS_DTLS(s))
+ headerlen = DTLS1_RT_HEADER_LENGTH + 1;
+ else
+ headerlen = SSL3_RT_HEADER_LENGTH;
#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
- align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
+ align = (-SSL3_RT_HEADER_LENGTH) & (SSL3_ALIGN_PAYLOAD - 1);
#endif
- if (wb->buf == NULL) {
len = s->max_send_fragment
+ SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD + headerlen + align;
#ifndef OPENSSL_NO_COMP
#endif
if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
len += headerlen + align + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD;
+ }
- if ((p = OPENSSL_malloc(len)) == NULL)
- goto err;
- wb->buf = p;
- wb->len = len;
+ wb = RECORD_LAYER_get_wbuf(&s->rlayer);
+ for (currpipe = 0; currpipe < numwpipes; currpipe++) {
+ if (wb[currpipe].buf == NULL) {
+ if ((p = OPENSSL_malloc(len)) == NULL) {
+ s->rlayer.numwpipes = currpipe;
+ goto err;
+ }
+ wb[currpipe].buf = p;
+ wb[currpipe].len = len;
+ }
}
return 1;
{
if (!ssl3_setup_read_buffer(s))
return 0;
- if (!ssl3_setup_write_buffer(s))
+ if (!ssl3_setup_write_buffer(s, 1, 0))
return 0;
return 1;
}
int ssl3_release_write_buffer(SSL *s)
{
SSL3_BUFFER *wb;
+ unsigned int pipes;
- wb = RECORD_LAYER_get_wbuf(&s->rlayer);
+ pipes = s->rlayer.numwpipes;
+ while (pipes > 0) {
+ wb = &RECORD_LAYER_get_wbuf(&s->rlayer)[pipes - 1];
- if (wb->buf != NULL) {
OPENSSL_free(wb->buf);
wb->buf = NULL;
+ pipes--;
}
+ s->rlayer.numwpipes = 0;
return 1;
}
SSL3_BUFFER *b;
b = RECORD_LAYER_get_rbuf(&s->rlayer);
- if (b->buf != NULL) {
- OPENSSL_free(b->buf);
- b->buf = NULL;
- }
+ OPENSSL_free(b->buf);
+ b->buf = NULL;
return 1;
}
projects / openssl.git / blobdiff