* 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 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ * ECC cipher suite support in OpenSSL originally developed by
+ * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
+ */
+#include <limits.h>
+#include <string.h>
#include <stdio.h>
+#include "ssl_locl.h"
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
-#include "ssl_locl.h"
-int ssl3_send_finished(SSL *s, int a, int b, unsigned char *sender,
- int slen)
+/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
+int ssl3_do_write(SSL *s, int type)
+ {
+ int ret;
+
+ ret=ssl3_write_bytes(s,type,&s->init_buf->data[s->init_off],
+ s->init_num);
+ if (ret < 0) return(-1);
+ if (type == SSL3_RT_HANDSHAKE)
+ /* should not be done for 'Hello Request's, but in that case
+ * we'll ignore the result anyway */
+ ssl3_finish_mac(s,(unsigned char *)&s->init_buf->data[s->init_off],ret);
+
+ if (ret == s->init_num)
+ {
+ if (s->msg_callback)
+ s->msg_callback(1, s->version, type, s->init_buf->data, (size_t)(s->init_off + s->init_num), s, s->msg_callback_arg);
+ return(1);
+ }
+ s->init_off+=ret;
+ s->init_num-=ret;
+ return(0);
+ }
+
+int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen)
{
unsigned char *p,*d;
int i;
p= &(d[4]);
i=s->method->ssl3_enc->final_finish_mac(s,
- &(s->s3->finish_dgst1),
- &(s->s3->finish_dgst2),
- sender,slen,p);
+ sender,slen,s->s3->tmp.finish_md);
+ s->s3->tmp.finish_md_len = i;
+ memcpy(p, s->s3->tmp.finish_md, i);
p+=i;
l=i;
-#ifdef WIN16
+ /* Copy the finished so we can use it for
+ renegotiation checks */
+ if(s->type == SSL_ST_CONNECT)
+ {
+ OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+ memcpy(s->s3->previous_client_finished,
+ s->s3->tmp.finish_md, i);
+ s->s3->previous_client_finished_len=i;
+ }
+ else
+ {
+ OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+ memcpy(s->s3->previous_server_finished,
+ s->s3->tmp.finish_md, i);
+ s->s3->previous_server_finished_len=i;
+ }
+
+#ifdef OPENSSL_SYS_WIN16
/* MSVC 1.5 does not clear the top bytes of the word unless
* I do this.
*/
return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
}
+#ifndef OPENSSL_NO_NEXTPROTONEG
+/* ssl3_take_mac calculates the Finished MAC for the handshakes messages seen to far. */
+static void ssl3_take_mac(SSL *s)
+ {
+ const char *sender;
+ int slen;
+
+ if (s->state & SSL_ST_CONNECT)
+ {
+ sender=s->method->ssl3_enc->server_finished_label;
+ slen=s->method->ssl3_enc->server_finished_label_len;
+ }
+ else
+ {
+ sender=s->method->ssl3_enc->client_finished_label;
+ slen=s->method->ssl3_enc->client_finished_label_len;
+ }
+
+ s->s3->tmp.peer_finish_md_len = s->method->ssl3_enc->final_finish_mac(s,
+ sender,slen,s->s3->tmp.peer_finish_md);
+ }
+#endif
+
int ssl3_get_finished(SSL *s, int a, int b)
{
int al,i,ok;
long n;
unsigned char *p;
+#ifdef OPENSSL_NO_NEXTPROTONEG
/* the mac has already been generated when we received the
- * change cipher spec message and is in s->s3->tmp.finish_md
+ * change cipher spec message and is in s->s3->tmp.peer_finish_md
*/
+#endif
- n=ssl3_get_message(s,
+ n=s->method->ssl_get_message(s,
a,
b,
SSL3_MT_FINISHED,
if (!ok) return((int)n);
- /* If this occurs if we has missed a message */
+ /* If this occurs, we have missed a message */
if (!s->s3->change_cipher_spec)
{
al=SSL_AD_UNEXPECTED_MESSAGE;
}
s->s3->change_cipher_spec=0;
- p=(unsigned char *)s->init_buf->data;
-
- i=s->method->ssl3_enc->finish_mac_length;
+ p = (unsigned char *)s->init_msg;
+ i = s->s3->tmp.peer_finish_md_len;
if (i != n)
{
goto f_err;
}
- if (memcmp( p, (char *)&(s->s3->tmp.finish_md[0]),i) != 0)
+ if (memcmp(p, s->s3->tmp.peer_finish_md, i) != 0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_DIGEST_CHECK_FAILED);
goto f_err;
}
+ /* Copy the finished so we can use it for
+ renegotiation checks */
+ if(s->type == SSL_ST_ACCEPT)
+ {
+ OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+ memcpy(s->s3->previous_client_finished,
+ s->s3->tmp.peer_finish_md, i);
+ s->s3->previous_client_finished_len=i;
+ }
+ else
+ {
+ OPENSSL_assert(i <= EVP_MAX_MD_SIZE);
+ memcpy(s->s3->previous_server_finished,
+ s->s3->tmp.peer_finish_md, i);
+ s->s3->previous_server_finished_len=i;
+ }
+
return(1);
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
return(ssl3_do_write(s,SSL3_RT_CHANGE_CIPHER_SPEC));
}
+static int ssl3_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x)
+ {
+ int n;
+ unsigned char *p;
+
+ n=i2d_X509(x,NULL);
+ if (!BUF_MEM_grow_clean(buf,(int)(n+(*l)+3)))
+ {
+ SSLerr(SSL_F_SSL3_ADD_CERT_TO_BUF,ERR_R_BUF_LIB);
+ return(-1);
+ }
+ p=(unsigned char *)&(buf->data[*l]);
+ l2n3(n,p);
+ i2d_X509(x,&p);
+ *l+=n+3;
+
+ return(0);
+ }
+
unsigned long ssl3_output_cert_chain(SSL *s, X509 *x)
{
unsigned char *p;
- int n,i;
+ int i;
unsigned long l=7;
BUF_MEM *buf;
- X509_STORE_CTX xs_ctx;
- X509_OBJECT obj;
+ int no_chain;
+
+ if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || s->ctx->extra_certs)
+ no_chain = 1;
+ else
+ no_chain = 0;
/* TLSv1 sends a chain with nothing in it, instead of an alert */
buf=s->init_buf;
- if (!BUF_MEM_grow(buf,(int)(10)))
+ if (!BUF_MEM_grow_clean(buf,10))
{
SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
return(0);
}
if (x != NULL)
{
- X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL);
-
- for (;;)
+ if (no_chain)
{
- n=i2d_X509(x,NULL);
- if (!BUF_MEM_grow(buf,(int)(n+l+3)))
+ if (ssl3_add_cert_to_buf(buf, &l, x))
+ return(0);
+ }
+ else
+ {
+ X509_STORE_CTX xs_ctx;
+
+ if (!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,x,NULL))
{
- SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
return(0);
}
- p=(unsigned char *)&(buf->data[l]);
- l2n3(n,p);
- i2d_X509(x,&p);
- l+=n+3;
- if (X509_NAME_cmp(X509_get_subject_name(x),
- X509_get_issuer_name(x)) == 0) break;
-
- i=X509_STORE_get_by_subject(&xs_ctx,X509_LU_X509,
- X509_get_issuer_name(x),&obj);
- if (i <= 0) break;
- x=obj.data.x509;
- /* Count is one too high since the X509_STORE_get uped the
- * ref count */
- X509_free(x);
- }
+ X509_verify_cert(&xs_ctx);
+ /* Don't leave errors in the queue */
+ ERR_clear_error();
+ for (i=0; i < sk_X509_num(xs_ctx.chain); i++)
+ {
+ x = sk_X509_value(xs_ctx.chain, i);
- X509_STORE_CTX_cleanup(&xs_ctx);
+ if (ssl3_add_cert_to_buf(buf, &l, x))
+ {
+ X509_STORE_CTX_cleanup(&xs_ctx);
+ return 0;
+ }
+ }
+ X509_STORE_CTX_cleanup(&xs_ctx);
+ }
}
-
/* Thawte special :-) */
- if (s->ctx->extra_certs != NULL)
for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
{
x=sk_X509_value(s->ctx->extra_certs,i);
- n=i2d_X509(x,NULL);
- if (!BUF_MEM_grow(buf,(int)(n+l+3)))
- {
- SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ if (ssl3_add_cert_to_buf(buf, &l, x))
return(0);
- }
- p=(unsigned char *)&(buf->data[l]);
- l2n3(n,p);
- i2d_X509(x,&p);
- l+=n+3;
}
l-=7;
return(l);
}
+/* Obtain handshake message of message type 'mt' (any if mt == -1),
+ * maximum acceptable body length 'max'.
+ * The first four bytes (msg_type and length) are read in state 'st1',
+ * the body is read in state 'stn'.
+ */
long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
{
unsigned char *p;
goto f_err;
}
*ok=1;
- return((int)s->s3->tmp.message_size);
+ s->init_msg = s->init_buf->data + 4;
+ s->init_num = (int)s->s3->tmp.message_size;
+ return s->init_num;
}
p=(unsigned char *)s->init_buf->data;
- if (s->state == st1)
+ if (s->state == st1) /* s->init_num < 4 */
{
- i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],
- 4-s->init_num);
- if (i < (4-s->init_num))
+ int skip_message;
+
+ do
{
- *ok=0;
- return(ssl3_part_read(s,i));
+ while (s->init_num < 4)
+ {
+ i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,
+ &p[s->init_num],4 - s->init_num, 0);
+ if (i <= 0)
+ {
+ s->rwstate=SSL_READING;
+ *ok = 0;
+ return i;
+ }
+ s->init_num+=i;
+ }
+
+ skip_message = 0;
+ if (!s->server)
+ if (p[0] == SSL3_MT_HELLO_REQUEST)
+ /* The server may always send 'Hello Request' messages --
+ * we are doing a handshake anyway now, so ignore them
+ * if their format is correct. Does not count for
+ * 'Finished' MAC. */
+ if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
+ {
+ s->init_num = 0;
+ skip_message = 1;
+
+ if (s->msg_callback)
+ s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, p, 4, s, s->msg_callback_arg);
+ }
}
+ while (skip_message);
+
+ /* s->init_num == 4 */
if ((mt >= 0) && (*p != mt))
{
SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
- if((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
+ if ((mt < 0) && (*p == SSL3_MT_CLIENT_HELLO) &&
(st1 == SSL3_ST_SR_CERT_A) &&
(stn == SSL3_ST_SR_CERT_B))
{
/* At this point we have got an MS SGC second client
- * hello. We need to restart the mac and mac the data
- * currently received.
- */
+ * hello (maybe we should always allow the client to
+ * start a new handshake?). We need to restart the mac.
+ * Don't increment {num,total}_renegotiations because
+ * we have not completed the handshake. */
ssl3_init_finished_mac(s);
- ssl3_finish_mac(s, p + s->init_num, i);
}
-
+
s->s3->tmp.message_type= *(p++);
n2l3(p,l);
SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
goto f_err;
}
- if (l && !BUF_MEM_grow(s->init_buf,(int)l))
+ if (l > (INT_MAX-4)) /* BUF_MEM_grow takes an 'int' parameter */
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
+ if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l+4))
{
SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
goto err;
s->s3->tmp.message_size=l;
s->state=stn;
- s->init_num=0;
+ s->init_msg = s->init_buf->data + 4;
+ s->init_num = 0;
}
/* next state (stn) */
- p=(unsigned char *)s->init_buf->data;
- n=s->s3->tmp.message_size;
- if (n > 0)
+ p = s->init_msg;
+ n = s->s3->tmp.message_size - s->init_num;
+ while (n > 0)
{
- i=ssl3_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n);
- if (i != (int)n)
+ i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);
+ if (i <= 0)
{
- *ok=0;
- return(ssl3_part_read(s,i));
+ s->rwstate=SSL_READING;
+ *ok = 0;
+ return i;
}
+ s->init_num += i;
+ n -= i;
}
+
+#ifndef OPENSSL_NO_NEXTPROTONEG
+ /* If receiving Finished, record MAC of prior handshake messages for
+ * Finished verification. */
+ if (*s->init_buf->data == SSL3_MT_FINISHED)
+ ssl3_take_mac(s);
+#endif
+
+ /* Feed this message into MAC computation. */
+ ssl3_finish_mac(s, (unsigned char *)s->init_buf->data, s->init_num + 4);
+ if (s->msg_callback)
+ s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data, (size_t)s->init_num + 4, s, s->msg_callback_arg);
*ok=1;
- return(n);
+ return s->init_num;
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
err:
int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
{
EVP_PKEY *pk;
- int ret= -1,i,j;
+ int ret= -1,i;
if (pkey == NULL)
pk=X509_get_pubkey(x);
if (i == EVP_PKEY_RSA)
{
ret=SSL_PKEY_RSA_ENC;
- if (x != NULL)
- {
- j=X509_get_ext_count(x);
- /* check to see if this is a signing only certificate */
- /* EAY EAY EAY EAY */
- }
}
else if (i == EVP_PKEY_DSA)
{
ret=SSL_PKEY_DSA_SIGN;
}
- else if (i == EVP_PKEY_DH)
+#ifndef OPENSSL_NO_EC
+ else if (i == EVP_PKEY_EC)
{
- /* if we just have a key, we needs to be guess */
-
- if (x == NULL)
- ret=SSL_PKEY_DH_DSA;
- else
- {
- j=X509_get_signature_type(x);
- if (j == EVP_PKEY_RSA)
- ret=SSL_PKEY_DH_RSA;
- else if (j== EVP_PKEY_DSA)
- ret=SSL_PKEY_DH_DSA;
- else ret= -1;
- }
+ ret = SSL_PKEY_ECC;
+ }
+#endif
+ else if (i == NID_id_GostR3410_94 || i == NID_id_GostR3410_94_cc)
+ {
+ ret = SSL_PKEY_GOST94;
+ }
+ else if (i == NID_id_GostR3410_2001 || i == NID_id_GostR3410_2001_cc)
+ {
+ ret = SSL_PKEY_GOST01;
}
- else
- ret= -1;
-
err:
if(!pkey) EVP_PKEY_free(pk);
return(ret);
{
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
case X509_V_ERR_UNABLE_TO_GET_CRL:
+ case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
al=SSL_AD_UNKNOWN_CA;
break;
case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
case X509_V_ERR_CERT_NOT_YET_VALID:
case X509_V_ERR_CRL_NOT_YET_VALID:
+ case X509_V_ERR_CERT_UNTRUSTED:
+ case X509_V_ERR_CERT_REJECTED:
al=SSL_AD_BAD_CERTIFICATE;
break;
case X509_V_ERR_CERT_SIGNATURE_FAILURE:
case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
case X509_V_ERR_CERT_CHAIN_TOO_LONG:
+ case X509_V_ERR_PATH_LENGTH_EXCEEDED:
+ case X509_V_ERR_INVALID_CA:
al=SSL_AD_UNKNOWN_CA;
break;
case X509_V_ERR_APPLICATION_VERIFICATION:
al=SSL_AD_HANDSHAKE_FAILURE;
break;
+ case X509_V_ERR_INVALID_PURPOSE:
+ al=SSL_AD_UNSUPPORTED_CERTIFICATE;
+ break;
default:
al=SSL_AD_CERTIFICATE_UNKNOWN;
break;
return(al);
}
-int ssl3_setup_buffers(SSL *s)
+#ifndef OPENSSL_NO_BUF_FREELISTS
+/* On some platforms, malloc() performance is bad enough that you can't just
+ * free() and malloc() buffers all the time, so we need to use freelists from
+ * unused buffers. Currently, each freelist holds memory chunks of only a
+ * given size (list->chunklen); other sized chunks are freed and malloced.
+ * This doesn't help much if you're using many different SSL option settings
+ * with a given context. (The options affecting buffer size are
+ * max_send_fragment, read buffer vs write buffer,
+ * SSL_OP_MICROSOFT_BIG_WRITE_BUFFER, SSL_OP_NO_COMPRESSION, and
+ * SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS.) Using a separate freelist for every
+ * possible size is not an option, since max_send_fragment can take on many
+ * different values.
+ *
+ * If you are on a platform with a slow malloc(), and you're using SSL
+ * connections with many different settings for these options, and you need to
+ * use the SSL_MOD_RELEASE_BUFFERS feature, you have a few options:
+ * - Link against a faster malloc implementation.
+ * - Use a separate SSL_CTX for each option set.
+ * - Improve this code.
+ */
+static void *
+freelist_extract(SSL_CTX *ctx, int for_read, int sz)
+ {
+ SSL3_BUF_FREELIST *list;
+ SSL3_BUF_FREELIST_ENTRY *ent = NULL;
+ void *result = NULL;
+
+ CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+ list = for_read ? ctx->rbuf_freelist : ctx->wbuf_freelist;
+ if (list != NULL && sz == (int)list->chunklen)
+ ent = list->head;
+ if (ent != NULL)
+ {
+ list->head = ent->next;
+ result = ent;
+ if (--list->len == 0)
+ list->chunklen = 0;
+ }
+ CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+ if (!result)
+ result = OPENSSL_malloc(sz);
+ return result;
+}
+
+static void
+freelist_insert(SSL_CTX *ctx, int for_read, size_t sz, void *mem)
+ {
+ SSL3_BUF_FREELIST *list;
+ SSL3_BUF_FREELIST_ENTRY *ent;
+
+ CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
+ list = for_read ? ctx->rbuf_freelist : ctx->wbuf_freelist;
+ if (list != NULL &&
+ (sz == list->chunklen || list->chunklen == 0) &&
+ list->len < ctx->freelist_max_len &&
+ sz >= sizeof(*ent))
+ {
+ list->chunklen = sz;
+ ent = mem;
+ ent->next = list->head;
+ list->head = ent;
+ ++list->len;
+ mem = NULL;
+ }
+
+ CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
+ if (mem)
+ OPENSSL_free(mem);
+ }
+#else
+#define freelist_extract(c,fr,sz) OPENSSL_malloc(sz)
+#define freelist_insert(c,fr,sz,m) OPENSSL_free(m)
+#endif
+
+int ssl3_setup_read_buffer(SSL *s)
{
unsigned char *p;
- unsigned int extra;
+ size_t len,align=0,headerlen;
+
+ if (SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+ headerlen = DTLS1_RT_HEADER_LENGTH;
+ else
+ headerlen = SSL3_RT_HEADER_LENGTH;
+
+#if defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+ align = (-SSL3_RT_HEADER_LENGTH)&(SSL3_ALIGN_PAYLOAD-1);
+#endif
if (s->s3->rbuf.buf == NULL)
{
+ len = SSL3_RT_MAX_PLAIN_LENGTH
+ + SSL3_RT_MAX_ENCRYPTED_OVERHEAD
+ + headerlen + align;
if (s->options & SSL_OP_MICROSOFT_BIG_SSLV3_BUFFER)
- extra=SSL3_RT_MAX_EXTRA;
- else
- extra=0;
- if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE+extra))
- == NULL)
+ {
+ s->s3->init_extra = 1;
+ len += SSL3_RT_MAX_EXTRA;
+ }
+#ifndef OPENSSL_NO_COMP
+ if (!(s->options & SSL_OP_NO_COMPRESSION))
+ len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+ if ((p=freelist_extract(s->ctx, 1, len)) == NULL)
goto err;
- s->s3->rbuf.buf=p;
+ s->s3->rbuf.buf = p;
+ s->s3->rbuf.len = len;
}
+ s->packet= &(s->s3->rbuf.buf[0]);
+ return 1;
+
+err:
+ SSLerr(SSL_F_SSL3_SETUP_READ_BUFFER,ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+int ssl3_setup_write_buffer(SSL *s)
+ {
+ unsigned char *p;
+ size_t len,align=0,headerlen;
+
+ 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 defined(SSL3_ALIGN_PAYLOAD) && SSL3_ALIGN_PAYLOAD!=0
+ align = (-SSL3_RT_HEADER_LENGTH)&(SSL3_ALIGN_PAYLOAD-1);
+#endif
+
if (s->s3->wbuf.buf == NULL)
{
- if ((p=(unsigned char *)Malloc(SSL3_RT_MAX_PACKET_SIZE))
- == NULL)
+ len = s->max_send_fragment
+ + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD
+ + headerlen + align;
+#ifndef OPENSSL_NO_COMP
+ if (!(s->options & SSL_OP_NO_COMPRESSION))
+ len += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
+#endif
+ if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
+ len += headerlen + align
+ + SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD;
+
+ if ((p=freelist_extract(s->ctx, 0, len)) == NULL)
goto err;
- s->s3->wbuf.buf=p;
+ s->s3->wbuf.buf = p;
+ s->s3->wbuf.len = len;
}
- s->packet= &(s->s3->rbuf.buf[0]);
- return(1);
+
+ return 1;
+
err:
- SSLerr(SSL_F_SSL3_SETUP_BUFFERS,ERR_R_MALLOC_FAILURE);
- return(0);
+ SSLerr(SSL_F_SSL3_SETUP_WRITE_BUFFER,ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+
+int ssl3_setup_buffers(SSL *s)
+ {
+ if (!ssl3_setup_read_buffer(s))
+ return 0;
+ if (!ssl3_setup_write_buffer(s))
+ return 0;
+ return 1;
+ }
+
+int ssl3_release_write_buffer(SSL *s)
+ {
+ if (s->s3->wbuf.buf != NULL)
+ {
+ freelist_insert(s->ctx, 0, s->s3->wbuf.len, s->s3->wbuf.buf);
+ s->s3->wbuf.buf = NULL;
+ }
+ return 1;
}
+
+int ssl3_release_read_buffer(SSL *s)
+ {
+ if (s->s3->rbuf.buf != NULL)
+ {
+ freelist_insert(s->ctx, 1, s->s3->rbuf.len, s->s3->rbuf.buf);
+ s->s3->rbuf.buf = NULL;
+ }
+ return 1;
+ }
+
projects / openssl.git / blobdiff