+++ /dev/null
-/* ssl/s3_both.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 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>
-
-/* 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;
- unsigned long l;
-
- if (s->state == a)
- {
- d=(unsigned char *)s->init_buf->data;
- p= &(d[4]);
-
- i=s->method->ssl3_enc->final_finish_mac(s,
- sender,slen,s->s3->tmp.finish_md);
- if (i == 0)
- return 0;
- s->s3->tmp.finish_md_len = i;
- memcpy(p, s->s3->tmp.finish_md, i);
- p+=i;
- l=i;
-
- /* 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.
- */
- l&=0xffff;
-#endif
-
- *(d++)=SSL3_MT_FINISHED;
- l2n3(l,d);
- s->init_num=(int)l+4;
- s->init_off=0;
-
- s->state=b;
- }
-
- /* SSL3_ST_SEND_xxxxxx_HELLO_B */
- 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 no new cipher setup return immediately: other functions will
- * set the appropriate error.
- */
- if (s->s3->tmp.new_cipher == NULL)
- return;
- 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.peer_finish_md.
- */
-#endif
-
- n=s->method->ssl_get_message(s,
- a,
- b,
- SSL3_MT_FINISHED,
- 64, /* should actually be 36+4 :-) */
- &ok);
-
- if (!ok) return((int)n);
-
- /* If this occurs, we have missed a message */
- if (!s->s3->change_cipher_spec)
- {
- al=SSL_AD_UNEXPECTED_MESSAGE;
- SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_GOT_A_FIN_BEFORE_A_CCS);
- goto f_err;
- }
- s->s3->change_cipher_spec=0;
-
- p = (unsigned char *)s->init_msg;
- i = s->s3->tmp.peer_finish_md_len;
-
- if (i != n)
- {
- al=SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_SSL3_GET_FINISHED,SSL_R_BAD_DIGEST_LENGTH);
- goto f_err;
- }
-
- if (CRYPTO_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(0);
- }
-
-/* for these 2 messages, we need to
- * ssl->enc_read_ctx re-init
- * ssl->s3->read_sequence zero
- * ssl->s3->read_mac_secret re-init
- * ssl->session->read_sym_enc assign
- * ssl->session->read_compression assign
- * ssl->session->read_hash assign
- */
-int ssl3_send_change_cipher_spec(SSL *s, int a, int b)
- {
- unsigned char *p;
-
- if (s->state == a)
- {
- p=(unsigned char *)s->init_buf->data;
- *p=SSL3_MT_CCS;
- s->init_num=1;
- s->init_off=0;
-
- s->state=b;
- }
-
- /* SSL3_ST_CW_CHANGE_B */
- 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 i;
- unsigned long l=7;
- BUF_MEM *buf;
- 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_clean(buf,10))
- {
- SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
- return(0);
- }
- if (x != NULL)
- {
- if (no_chain)
- {
- 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_X509_LIB);
- return(0);
- }
- 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);
-
- 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 :-) */
- for (i=0; i<sk_X509_num(s->ctx->extra_certs); i++)
- {
- x=sk_X509_value(s->ctx->extra_certs,i);
- if (ssl3_add_cert_to_buf(buf, &l, x))
- return(0);
- }
-
- l-=7;
- p=(unsigned char *)&(buf->data[4]);
- l2n3(l,p);
- l+=3;
- p=(unsigned char *)&(buf->data[0]);
- *(p++)=SSL3_MT_CERTIFICATE;
- l2n3(l,p);
- l+=4;
- 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;
- unsigned long l;
- long n;
- int i,al;
-
- if (s->s3->tmp.reuse_message)
- {
- s->s3->tmp.reuse_message=0;
- if ((mt >= 0) && (s->s3->tmp.message_type != mt))
- {
- al=SSL_AD_UNEXPECTED_MESSAGE;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
- goto f_err;
- }
- *ok=1;
- 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) /* s->init_num < 4 */
- {
- int skip_message;
-
- do
- {
- 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))
- {
- al=SSL_AD_UNEXPECTED_MESSAGE;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
- goto f_err;
- }
- 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 (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);
- }
-
- s->s3->tmp.message_type= *(p++);
-
- n2l3(p,l);
- if (l > (unsigned long)max)
- {
- al=SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
- goto f_err;
- }
- 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_msg = s->init_buf->data + 4;
- s->init_num = 0;
- }
-
- /* next state (stn) */
- p = s->init_msg;
- n = s->s3->tmp.message_size - s->init_num;
- while (n > 0)
- {
- i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],n,0);
- if (i <= 0)
- {
- 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 s->init_num;
-f_err:
- ssl3_send_alert(s,SSL3_AL_FATAL,al);
-err:
- *ok=0;
- return(-1);
- }
-
-int ssl_cert_type(X509 *x, EVP_PKEY *pkey)
- {
- EVP_PKEY *pk;
- int ret= -1,i;
-
- if (pkey == NULL)
- pk=X509_get_pubkey(x);
- else
- pk=pkey;
- if (pk == NULL) goto err;
-
- i=pk->type;
- if (i == EVP_PKEY_RSA)
- {
- ret=SSL_PKEY_RSA_ENC;
- }
- else if (i == EVP_PKEY_DSA)
- {
- ret=SSL_PKEY_DSA_SIGN;
- }
-#ifndef OPENSSL_NO_EC
- else if (i == EVP_PKEY_EC)
- {
- 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;
- }
-err:
- if(!pkey) EVP_PKEY_free(pk);
- return(ret);
- }
-
-int ssl_verify_alarm_type(long type)
- {
- int al;
-
- switch(type)
- {
- 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_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
- case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
- case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
- case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
- case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
- 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_CRL_SIGNATURE_FAILURE:
- al=SSL_AD_DECRYPT_ERROR;
- break;
- case X509_V_ERR_CERT_HAS_EXPIRED:
- case X509_V_ERR_CRL_HAS_EXPIRED:
- al=SSL_AD_CERTIFICATE_EXPIRED;
- break;
- case X509_V_ERR_CERT_REVOKED:
- al=SSL_AD_CERTIFICATE_REVOKED;
- break;
- case X509_V_ERR_OUT_OF_MEM:
- al=SSL_AD_INTERNAL_ERROR;
- break;
- case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
- case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
- 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);
- }
-
-#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;
- 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)
- {
- 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.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)
- {
- 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.len = len;
- }
-
- return 1;
-
-err:
- 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;
- }
-
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