--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ssl/libssl/src/s3_srvr.c Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,2638 @@
+/* ssl/s3_srvr.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) 1998-2005 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.
+ *
+ * Portions of the attached software ("Contribution") are developed by
+ * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
+ *
+ * The Contribution is licensed pursuant to the OpenSSL open source
+ * license provided above.
+ *
+ * ECC cipher suite support in OpenSSL originally written by
+ * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
+ *
+ */
+/*
+ © Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
+ */
+
+#define REUSE_CIPHER_BUG
+#define NETSCAPE_HANG_BUG
+
+#include <stdio.h>
+#include "ssl_locl.h"
+#include "kssl_lcl.h"
+#include <openssl/buffer.h>
+#include <openssl/rand.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/hmac.h>
+#include <openssl/x509.h>
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+#include <openssl/bn.h>
+#ifndef OPENSSL_NO_KRB5
+#include <openssl/krb5_asn.h>
+#endif
+#include <openssl/md5.h>
+
+#if (defined(SYMBIAN) && (defined(__WINSCW__) || defined(__WINS__)))
+#include "libssl_wsd.h"
+#endif
+
+#ifdef EMULATOR
+
+ GET_STATIC_VAR_FROM_TLS(SSLv3_server_method_data,s3_srvr,SSL_METHOD)
+
+ #define SSLv3_server_method_data (*GET_WSD_VAR_NAME(SSLv3_server_method_data,s3_srvr,s)())
+
+#endif
+
+static SSL_METHOD *ssl3_get_server_method(int ver);
+
+#ifndef OPENSSL_NO_ECDH
+static int nid2curve_id(int nid);
+#endif
+
+static SSL_METHOD *ssl3_get_server_method(int ver)
+ {
+ if (ver == SSL3_VERSION)
+ return(SSLv3_server_method());
+ else
+ return(NULL);
+ }
+
+EXPORT_C IMPLEMENT_ssl3_meth_func(SSLv3_server_method,
+ ssl3_accept,
+ ssl_undefined_function,
+ ssl3_get_server_method)
+
+int ssl3_accept(SSL *s)
+ {
+ BUF_MEM *buf;
+ unsigned long l,Time=(unsigned long)time(NULL);
+ void (*cb)(const SSL *ssl,int type,int val)=NULL;
+ long num1;
+ int ret= -1;
+ int new_state,state,skip=0;
+
+ RAND_add(&Time,sizeof(Time),0);
+ ERR_clear_error();
+ clear_sys_error();
+
+ if (s->info_callback != NULL)
+ cb=s->info_callback;
+ else if (s->ctx->info_callback != NULL)
+ cb=s->ctx->info_callback;
+
+ /* init things to blank */
+ s->in_handshake++;
+ if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
+
+ if (s->cert == NULL)
+ {
+ SSLerr(SSL_F_SSL3_ACCEPT,SSL_R_NO_CERTIFICATE_SET);
+ return(-1);
+ }
+
+ for (;;)
+ {
+ state=s->state;
+
+ switch (s->state)
+ {
+ case SSL_ST_RENEGOTIATE:
+ s->new_session=1;
+ /* s->state=SSL_ST_ACCEPT; */
+
+ case SSL_ST_BEFORE:
+ case SSL_ST_ACCEPT:
+ case SSL_ST_BEFORE|SSL_ST_ACCEPT:
+ case SSL_ST_OK|SSL_ST_ACCEPT:
+
+ s->server=1;
+ if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
+
+ if ((s->version>>8) != 3)
+ {
+ SSLerr(SSL_F_SSL3_ACCEPT, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
+ s->type=SSL_ST_ACCEPT;
+
+ if (s->init_buf == NULL)
+ {
+ if ((buf=BUF_MEM_new()) == NULL)
+ {
+ ret= -1;
+ goto end;
+ }
+ if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
+ {
+ ret= -1;
+ goto end;
+ }
+ s->init_buf=buf;
+ }
+
+ if (!ssl3_setup_buffers(s))
+ {
+ ret= -1;
+ goto end;
+ }
+
+ s->init_num=0;
+
+ if (s->state != SSL_ST_RENEGOTIATE)
+ {
+ /* Ok, we now need to push on a buffering BIO so that
+ * the output is sent in a way that TCP likes :-)
+ */
+ if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; }
+
+ ssl3_init_finished_mac(s);
+ s->state=SSL3_ST_SR_CLNT_HELLO_A;
+ s->ctx->stats.sess_accept++;
+ }
+ else
+ {
+ /* s->state == SSL_ST_RENEGOTIATE,
+ * we will just send a HelloRequest */
+ s->ctx->stats.sess_accept_renegotiate++;
+ s->state=SSL3_ST_SW_HELLO_REQ_A;
+ }
+ break;
+
+ case SSL3_ST_SW_HELLO_REQ_A:
+ case SSL3_ST_SW_HELLO_REQ_B:
+
+ s->shutdown=0;
+ ret=ssl3_send_hello_request(s);
+ if (ret <= 0) goto end;
+ s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C;
+ s->state=SSL3_ST_SW_FLUSH;
+ s->init_num=0;
+
+ ssl3_init_finished_mac(s);
+ break;
+
+ case SSL3_ST_SW_HELLO_REQ_C:
+ s->state=SSL_ST_OK;
+ break;
+
+ case SSL3_ST_SR_CLNT_HELLO_A:
+ case SSL3_ST_SR_CLNT_HELLO_B:
+ case SSL3_ST_SR_CLNT_HELLO_C:
+
+ s->shutdown=0;
+ ret=ssl3_get_client_hello(s);
+ if (ret <= 0) goto end;
+ s->new_session = 2;
+ s->state=SSL3_ST_SW_SRVR_HELLO_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_SW_SRVR_HELLO_A:
+ case SSL3_ST_SW_SRVR_HELLO_B:
+ ret=ssl3_send_server_hello(s);
+ if (ret <= 0) goto end;
+
+ if (s->hit)
+ s->state=SSL3_ST_SW_CHANGE_A;
+ else
+ s->state=SSL3_ST_SW_CERT_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_SW_CERT_A:
+ case SSL3_ST_SW_CERT_B:
+ /* Check if it is anon DH or anon ECDH or KRB5 */
+ if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL)
+ && !(s->s3->tmp.new_cipher->algorithms & SSL_aKRB5))
+ {
+ ret=ssl3_send_server_certificate(s);
+ if (ret <= 0) goto end;
+ }
+ else
+ skip=1;
+ s->state=SSL3_ST_SW_KEY_EXCH_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_SW_KEY_EXCH_A:
+ case SSL3_ST_SW_KEY_EXCH_B:
+ l=s->s3->tmp.new_cipher->algorithms;
+
+ /* clear this, it may get reset by
+ * send_server_key_exchange */
+ if ((s->options & SSL_OP_EPHEMERAL_RSA)
+#ifndef OPENSSL_NO_KRB5
+ && !(l & SSL_KRB5)
+#endif /* OPENSSL_NO_KRB5 */
+ )
+ /* option SSL_OP_EPHEMERAL_RSA sends temporary RSA key
+ * even when forbidden by protocol specs
+ * (handshake may fail as clients are not required to
+ * be able to handle this) */
+ s->s3->tmp.use_rsa_tmp=1;
+ else
+ s->s3->tmp.use_rsa_tmp=0;
+
+
+ /* only send if a DH key exchange, fortezza or
+ * RSA but we have a sign only certificate
+ *
+ * For ECC ciphersuites, we send a serverKeyExchange
+ * message only if the cipher suite is either
+ * ECDH-anon or ECDHE. In other cases, the
+ * server certificate contains the server's
+ * public key for key exchange.
+ */
+ if (s->s3->tmp.use_rsa_tmp
+ || (l & SSL_kECDHE)
+ || (l & (SSL_DH|SSL_kFZA))
+ || ((l & SSL_kRSA)
+ && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL
+ || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)
+ && EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)
+ )
+ )
+ )
+ )
+ {
+ ret=ssl3_send_server_key_exchange(s);
+ if (ret <= 0) goto end;
+ }
+ else
+ skip=1;
+
+ s->state=SSL3_ST_SW_CERT_REQ_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_SW_CERT_REQ_A:
+ case SSL3_ST_SW_CERT_REQ_B:
+ if (/* don't request cert unless asked for it: */
+ !(s->verify_mode & SSL_VERIFY_PEER) ||
+ /* if SSL_VERIFY_CLIENT_ONCE is set,
+ * don't request cert during re-negotiation: */
+ ((s->session->peer != NULL) &&
+ (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) ||
+ /* never request cert in anonymous ciphersuites
+ * (see section "Certificate request" in SSL 3 drafts
+ * and in RFC 2246): */
+ ((s->s3->tmp.new_cipher->algorithms & SSL_aNULL) &&
+ /* ... except when the application insists on verification
+ * (against the specs, but s3_clnt.c accepts this for SSL 3) */
+ !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) ||
+ /* never request cert in Kerberos ciphersuites */
+ (s->s3->tmp.new_cipher->algorithms & SSL_aKRB5))
+ {
+ /* no cert request */
+ skip=1;
+ s->s3->tmp.cert_request=0;
+ s->state=SSL3_ST_SW_SRVR_DONE_A;
+ }
+ else
+ {
+ s->s3->tmp.cert_request=1;
+ ret=ssl3_send_certificate_request(s);
+ if (ret <= 0) goto end;
+#ifndef NETSCAPE_HANG_BUG
+ s->state=SSL3_ST_SW_SRVR_DONE_A;
+#else
+ s->state=SSL3_ST_SW_FLUSH;
+ s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
+#endif
+ s->init_num=0;
+ }
+ break;
+
+ case SSL3_ST_SW_SRVR_DONE_A:
+ case SSL3_ST_SW_SRVR_DONE_B:
+ ret=ssl3_send_server_done(s);
+ if (ret <= 0) goto end;
+ s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
+ s->state=SSL3_ST_SW_FLUSH;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_SW_FLUSH:
+ /* number of bytes to be flushed */
+ num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
+ if (num1 > 0)
+ {
+ s->rwstate=SSL_WRITING;
+ num1=BIO_flush(s->wbio);
+ if (num1 <= 0) { ret= -1; goto end; }
+ s->rwstate=SSL_NOTHING;
+ }
+
+ s->state=s->s3->tmp.next_state;
+ break;
+
+ case SSL3_ST_SR_CERT_A:
+ case SSL3_ST_SR_CERT_B:
+ /* Check for second client hello (MS SGC) */
+ ret = ssl3_check_client_hello(s);
+ if (ret <= 0)
+ goto end;
+ if (ret == 2)
+ s->state = SSL3_ST_SR_CLNT_HELLO_C;
+ else {
+ if (s->s3->tmp.cert_request)
+ {
+ ret=ssl3_get_client_certificate(s);
+ if (ret <= 0) goto end;
+ }
+ s->init_num=0;
+ s->state=SSL3_ST_SR_KEY_EXCH_A;
+ }
+ break;
+
+ case SSL3_ST_SR_KEY_EXCH_A:
+ case SSL3_ST_SR_KEY_EXCH_B:
+ ret=ssl3_get_client_key_exchange(s);
+ if (ret <= 0)
+ goto end;
+ if (ret == 2)
+ {
+ /* For the ECDH ciphersuites when
+ * the client sends its ECDH pub key in
+ * a certificate, the CertificateVerify
+ * message is not sent.
+ */
+ s->state=SSL3_ST_SR_FINISHED_A;
+ s->init_num = 0;
+ }
+ else
+ {
+ s->state=SSL3_ST_SR_CERT_VRFY_A;
+ s->init_num=0;
+
+ /* We need to get hashes here so if there is
+ * a client cert, it can be verified
+ */
+ s->method->ssl3_enc->cert_verify_mac(s,
+ &(s->s3->finish_dgst1),
+ &(s->s3->tmp.cert_verify_md[0]));
+ s->method->ssl3_enc->cert_verify_mac(s,
+ &(s->s3->finish_dgst2),
+ &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]));
+ }
+ break;
+
+ case SSL3_ST_SR_CERT_VRFY_A:
+ case SSL3_ST_SR_CERT_VRFY_B:
+
+ /* we should decide if we expected this one */
+ ret=ssl3_get_cert_verify(s);
+ if (ret <= 0) goto end;
+
+ s->state=SSL3_ST_SR_FINISHED_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_SR_FINISHED_A:
+ case SSL3_ST_SR_FINISHED_B:
+ ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,
+ SSL3_ST_SR_FINISHED_B);
+ if (ret <= 0) goto end;
+ if (s->hit)
+ s->state=SSL_ST_OK;
+
+ else
+ s->state=SSL3_ST_SW_CHANGE_A;
+ s->init_num=0;
+ break;
+
+
+
+ case SSL3_ST_SW_CHANGE_A:
+ case SSL3_ST_SW_CHANGE_B:
+
+ s->session->cipher=s->s3->tmp.new_cipher;
+ if (!s->method->ssl3_enc->setup_key_block(s))
+ { ret= -1; goto end; }
+
+ ret=ssl3_send_change_cipher_spec(s,
+ SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B);
+
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_SW_FINISHED_A;
+ s->init_num=0;
+
+ if (!s->method->ssl3_enc->change_cipher_state(s,
+ SSL3_CHANGE_CIPHER_SERVER_WRITE))
+ {
+ ret= -1;
+ goto end;
+ }
+
+ break;
+
+ case SSL3_ST_SW_FINISHED_A:
+ case SSL3_ST_SW_FINISHED_B:
+ ret=ssl3_send_finished(s,
+ SSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B,
+ s->method->ssl3_enc->server_finished_label,
+ s->method->ssl3_enc->server_finished_label_len);
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_SW_FLUSH;
+ if (s->hit)
+ s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;
+ else
+ s->s3->tmp.next_state=SSL_ST_OK;
+ s->init_num=0;
+ break;
+
+ case SSL_ST_OK:
+ /* clean a few things up */
+ ssl3_cleanup_key_block(s);
+
+ BUF_MEM_free(s->init_buf);
+ s->init_buf=NULL;
+
+ /* remove buffering on output */
+ ssl_free_wbio_buffer(s);
+
+ s->init_num=0;
+
+ if (s->new_session == 2) /* skipped if we just sent a HelloRequest */
+ {
+ /* actually not necessarily a 'new' session unless
+ * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */
+
+ s->new_session=0;
+
+ ssl_update_cache(s,SSL_SESS_CACHE_SERVER);
+
+ s->ctx->stats.sess_accept_good++;
+ /* s->server=1; */
+ s->handshake_func=ssl3_accept;
+
+ if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
+ }
+
+ ret = 1;
+ goto end;
+ /* break; */
+
+ default:
+ SSLerr(SSL_F_SSL3_ACCEPT,SSL_R_UNKNOWN_STATE);
+ ret= -1;
+ goto end;
+ /* break; */
+ }
+
+ if (!s->s3->tmp.reuse_message && !skip)
+ {
+ if (s->debug)
+ {
+ if ((ret=BIO_flush(s->wbio)) <= 0)
+ goto end;
+ }
+
+
+ if ((cb != NULL) && (s->state != state))
+ {
+ new_state=s->state;
+ s->state=state;
+ cb(s,SSL_CB_ACCEPT_LOOP,1);
+ s->state=new_state;
+ }
+ }
+ skip=0;
+ }
+end:
+ /* BIO_flush(s->wbio); */
+
+ s->in_handshake--;
+ if (cb != NULL)
+ cb(s,SSL_CB_ACCEPT_EXIT,ret);
+ return(ret);
+ }
+
+int ssl3_send_hello_request(SSL *s)
+ {
+ unsigned char *p;
+
+ if (s->state == SSL3_ST_SW_HELLO_REQ_A)
+ {
+ p=(unsigned char *)s->init_buf->data;
+ *(p++)=SSL3_MT_HELLO_REQUEST;
+ *(p++)=0;
+ *(p++)=0;
+ *(p++)=0;
+
+ s->state=SSL3_ST_SW_HELLO_REQ_B;
+ /* number of bytes to write */
+ s->init_num=4;
+ s->init_off=0;
+ }
+
+ /* SSL3_ST_SW_HELLO_REQ_B */
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+ }
+
+int ssl3_check_client_hello(SSL *s)
+ {
+ int ok;
+ long n;
+
+ /* this function is called when we really expect a Certificate message,
+ * so permit appropriate message length */
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_SR_CERT_A,
+ SSL3_ST_SR_CERT_B,
+ -1,
+ s->max_cert_list,
+ &ok);
+ if (!ok) return((int)n);
+ s->s3->tmp.reuse_message = 1;
+ if (s->s3->tmp.message_type == SSL3_MT_CLIENT_HELLO)
+ {
+ /* Throw away what we have done so far in the current handshake,
+ * which will now be aborted. (A full SSL_clear would be too much.)
+ * I hope that tmp.dh is the only thing that may need to be cleared
+ * when a handshake is not completed ... */
+#ifndef OPENSSL_NO_DH
+ if (s->s3->tmp.dh != NULL)
+ {
+ DH_free(s->s3->tmp.dh);
+ s->s3->tmp.dh = NULL;
+ }
+#endif
+ return 2;
+ }
+ return 1;
+}
+
+int ssl3_get_client_hello(SSL *s)
+ {
+ int i,j,ok,al,ret= -1;
+ unsigned int cookie_len;
+ long n;
+ unsigned long id;
+ unsigned char *p,*d,*q;
+ SSL_CIPHER *c;
+#ifndef OPENSSL_NO_COMP
+ SSL_COMP *comp=NULL;
+#endif
+ STACK_OF(SSL_CIPHER) *ciphers=NULL;
+
+ /* We do this so that we will respond with our native type.
+ * If we are TLSv1 and we get SSLv3, we will respond with TLSv1,
+ * This down switching should be handled by a different method.
+ * If we are SSLv3, we will respond with SSLv3, even if prompted with
+ * TLSv1.
+ */
+ if (s->state == SSL3_ST_SR_CLNT_HELLO_A)
+ {
+ s->state=SSL3_ST_SR_CLNT_HELLO_B;
+ }
+ s->first_packet=1;
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_SR_CLNT_HELLO_B,
+ SSL3_ST_SR_CLNT_HELLO_C,
+ SSL3_MT_CLIENT_HELLO,
+ SSL3_RT_MAX_PLAIN_LENGTH,
+ &ok);
+
+ if (!ok) return((int)n);
+ s->first_packet=0;
+ d=p=(unsigned char *)s->init_msg;
+
+ /* use version from inside client hello, not from record header
+ * (may differ: see RFC 2246, Appendix E, second paragraph) */
+ s->client_version=(((int)p[0])<<8)|(int)p[1];
+ p+=2;
+
+ if ((s->version == DTLS1_VERSION && s->client_version > s->version) ||
+ (s->version != DTLS1_VERSION && s->client_version < s->version))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_WRONG_VERSION_NUMBER);
+ if ((s->client_version>>8) == SSL3_VERSION_MAJOR)
+ {
+ /* similar to ssl3_get_record, send alert using remote version number */
+ s->version = s->client_version;
+ }
+ al = SSL_AD_PROTOCOL_VERSION;
+ goto f_err;
+ }
+
+ /* load the client random */
+ memcpy(s->s3->client_random,p,SSL3_RANDOM_SIZE);
+ p+=SSL3_RANDOM_SIZE;
+
+ /* get the session-id */
+ j= *(p++);
+
+ s->hit=0;
+ /* Versions before 0.9.7 always allow session reuse during renegotiation
+ * (i.e. when s->new_session is true), option
+ * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is new with 0.9.7.
+ * Maybe this optional behaviour should always have been the default,
+ * but we cannot safely change the default behaviour (or new applications
+ * might be written that become totally unsecure when compiled with
+ * an earlier library version)
+ */
+ if ((s->new_session && (s->options & SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION)))
+ {
+ if (!ssl_get_new_session(s,1))
+ goto err;
+ }
+ else
+ {
+ i=ssl_get_prev_session(s, p, j, d + n);
+ if (i == 1)
+ { /* previous session */
+ s->hit=1;
+ }
+ else if (i == -1)
+ goto err;
+ else /* i == 0 */
+ {
+ if (!ssl_get_new_session(s,1))
+ goto err;
+ }
+ }
+
+ p+=j;
+
+ if (s->version == DTLS1_VERSION)
+ {
+ /* cookie stuff */
+ cookie_len = *(p++);
+
+ if ( (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) &&
+ s->d1->send_cookie == 0)
+ {
+ /* HelloVerifyMessage has already been sent */
+ if ( cookie_len != s->d1->cookie_len)
+ {
+ al = SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_COOKIE_MISMATCH);
+ goto f_err;
+ }
+ }
+
+ /*
+ * The ClientHello may contain a cookie even if the
+ * HelloVerify message has not been sent--make sure that it
+ * does not cause an overflow.
+ */
+ if ( cookie_len > sizeof(s->d1->rcvd_cookie))
+ {
+ /* too much data */
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_COOKIE_MISMATCH);
+ goto f_err;
+ }
+
+ /* verify the cookie if appropriate option is set. */
+ if ( (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) &&
+ cookie_len > 0)
+ {
+ memcpy(s->d1->rcvd_cookie, p, cookie_len);
+
+ if ( s->ctx->app_verify_cookie_cb != NULL)
+ {
+ if ( s->ctx->app_verify_cookie_cb(s, s->d1->rcvd_cookie,
+ cookie_len) == 0)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,
+ SSL_R_COOKIE_MISMATCH);
+ goto f_err;
+ }
+ /* else cookie verification succeeded */
+ }
+ else if ( memcmp(s->d1->rcvd_cookie, s->d1->cookie,
+ s->d1->cookie_len) != 0) /* default verification */
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,
+ SSL_R_COOKIE_MISMATCH);
+ goto f_err;
+ }
+ }
+
+ p += cookie_len;
+ }
+
+ n2s(p,i);
+ if ((i == 0) && (j != 0))
+ {
+ /* we need a cipher if we are not resuming a session */
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_SPECIFIED);
+ goto f_err;
+ }
+ if ((p+i) >= (d+n))
+ {
+ /* not enough data */
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ if ((i > 0) && (ssl_bytes_to_cipher_list(s,p,i,&(ciphers))
+ == NULL))
+ {
+ goto err;
+ }
+ p+=i;
+
+ /* If it is a hit, check that the cipher is in the list */
+ if ((s->hit) && (i > 0))
+ {
+ j=0;
+ id=s->session->cipher->id;
+
+#ifdef CIPHER_DEBUG
+ printf("client sent %d ciphers\n",sk_num(ciphers));
+#endif
+ for (i=0; i<sk_SSL_CIPHER_num(ciphers); i++)
+ {
+ c=sk_SSL_CIPHER_value(ciphers,i);
+#ifdef CIPHER_DEBUG
+ printf("client [%2d of %2d]:%s\n",
+ i,sk_num(ciphers),SSL_CIPHER_get_name(c));
+#endif
+ if (c->id == id)
+ {
+ j=1;
+ break;
+ }
+ }
+ if (j == 0)
+ {
+ if ((s->options & SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG) && (sk_SSL_CIPHER_num(ciphers) == 1))
+ {
+ /* Very bad for multi-threading.... */
+ s->session->cipher=sk_SSL_CIPHER_value(ciphers, 0);
+ }
+ else
+ {
+ /* we need to have the cipher in the cipher
+ * list if we are asked to reuse it */
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_REQUIRED_CIPHER_MISSING);
+ goto f_err;
+ }
+ }
+ }
+
+ /* compression */
+ i= *(p++);
+ if ((p+i) > (d+n))
+ {
+ /* not enough data */
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ q=p;
+ for (j=0; j<i; j++)
+ {
+ if (p[j] == 0) break;
+ }
+
+ p+=i;
+ if (j >= i)
+ {
+ /* no compress */
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_COMPRESSION_SPECIFIED);
+ goto f_err;
+ }
+
+
+ /* Worst case, we will use the NULL compression, but if we have other
+ * options, we will now look for them. We have i-1 compression
+ * algorithms from the client, starting at q. */
+ s->s3->tmp.new_compression=NULL;
+#ifndef OPENSSL_NO_COMP
+ if (s->ctx->comp_methods != NULL)
+ { /* See if we have a match */
+ int m,nn,o,v,done=0;
+
+ nn=sk_SSL_COMP_num(s->ctx->comp_methods);
+ for (m=0; m<nn; m++)
+ {
+ comp=sk_SSL_COMP_value(s->ctx->comp_methods,m);
+ v=comp->id;
+ for (o=0; o<i; o++)
+ {
+ if (v == q[o])
+ {
+ done=1;
+ break;
+ }
+ }
+ if (done) break;
+ }
+ if (done)
+ s->s3->tmp.new_compression=comp;
+ else
+ comp=NULL;
+ }
+#endif
+
+ /* TLS does not mind if there is extra stuff */
+#if 0 /* SSL 3.0 does not mind either, so we should disable this test
+ * (was enabled in 0.9.6d through 0.9.6j and 0.9.7 through 0.9.7b,
+ * in earlier SSLeay/OpenSSL releases this test existed but was buggy) */
+ if (s->version == SSL3_VERSION)
+ {
+ if (p < (d+n))
+ {
+ /* wrong number of bytes,
+ * there could be more to follow */
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ }
+#endif
+
+ /* Given s->session->ciphers and SSL_get_ciphers, we must
+ * pick a cipher */
+
+ if (!s->hit)
+ {
+#ifdef OPENSSL_NO_COMP
+ s->session->compress_meth=0;
+#else
+ s->session->compress_meth=(comp == NULL)?0:comp->id;
+#endif
+ if (s->session->ciphers != NULL)
+ sk_SSL_CIPHER_free(s->session->ciphers);
+ s->session->ciphers=ciphers;
+ if (ciphers == NULL)
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_PASSED);
+ goto f_err;
+ }
+ ciphers=NULL;
+ c=ssl3_choose_cipher(s,s->session->ciphers,
+ SSL_get_ciphers(s));
+
+ if (c == NULL)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_SHARED_CIPHER);
+ goto f_err;
+ }
+ s->s3->tmp.new_cipher=c;
+ }
+ else
+ {
+ /* Session-id reuse */
+#ifdef REUSE_CIPHER_BUG
+ STACK_OF(SSL_CIPHER) *sk;
+ SSL_CIPHER *nc=NULL;
+ SSL_CIPHER *ec=NULL;
+
+ if (s->options & SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG)
+ {
+ sk=s->session->ciphers;
+ for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
+ {
+ c=sk_SSL_CIPHER_value(sk,i);
+ if (c->algorithms & SSL_eNULL)
+ nc=c;
+ if (SSL_C_IS_EXPORT(c))
+ ec=c;
+ }
+ if (nc != NULL)
+ s->s3->tmp.new_cipher=nc;
+ else if (ec != NULL)
+ s->s3->tmp.new_cipher=ec;
+ else
+ s->s3->tmp.new_cipher=s->session->cipher;
+ }
+ else
+#endif
+ s->s3->tmp.new_cipher=s->session->cipher;
+ }
+
+ /* we now have the following setup.
+ * client_random
+ * cipher_list - our prefered list of ciphers
+ * ciphers - the clients prefered list of ciphers
+ * compression - basically ignored right now
+ * ssl version is set - sslv3
+ * s->session - The ssl session has been setup.
+ * s->hit - session reuse flag
+ * s->tmp.new_cipher - the new cipher to use.
+ */
+
+ ret=1;
+ if (0)
+ {
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+ }
+err:
+ if (ciphers != NULL) sk_SSL_CIPHER_free(ciphers);
+ return(ret);
+ }
+
+int ssl3_send_server_hello(SSL *s)
+ {
+ unsigned char *buf;
+ unsigned char *p,*d;
+ int i,sl;
+ unsigned long l,Time;
+
+ if (s->state == SSL3_ST_SW_SRVR_HELLO_A)
+ {
+ buf=(unsigned char *)s->init_buf->data;
+ p=s->s3->server_random;
+ Time=(unsigned long)time(NULL); /* Time */
+ l2n(Time,p);
+ if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
+ return -1;
+ /* Do the message type and length last */
+ d=p= &(buf[4]);
+
+ *(p++)=s->version>>8;
+ *(p++)=s->version&0xff;
+
+ /* Random stuff */
+ memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
+ p+=SSL3_RANDOM_SIZE;
+
+ /* now in theory we have 3 options to sending back the
+ * session id. If it is a re-use, we send back the
+ * old session-id, if it is a new session, we send
+ * back the new session-id or we send back a 0 length
+ * session-id if we want it to be single use.
+ * Currently I will not implement the '0' length session-id
+ * 12-Jan-98 - I'll now support the '0' length stuff.
+ */
+ if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER))
+ s->session->session_id_length=0;
+
+ sl=s->session->session_id_length;
+ if (sl > (int)sizeof(s->session->session_id))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
+ return -1;
+ }
+ *(p++)=sl;
+ memcpy(p,s->session->session_id,sl);
+ p+=sl;
+
+ /* put the cipher */
+ i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p);
+ p+=i;
+
+ /* put the compression method */
+#ifdef OPENSSL_NO_COMP
+ *(p++)=0;
+#else
+ if (s->s3->tmp.new_compression == NULL)
+ *(p++)=0;
+ else
+ *(p++)=s->s3->tmp.new_compression->id;
+#endif
+
+ /* do the header */
+ l=(p-d);
+ d=buf;
+ *(d++)=SSL3_MT_SERVER_HELLO;
+ l2n3(l,d);
+
+ s->state=SSL3_ST_CW_CLNT_HELLO_B;
+ /* number of bytes to write */
+ s->init_num=p-buf;
+ s->init_off=0;
+ }
+
+ /* SSL3_ST_CW_CLNT_HELLO_B */
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+ }
+
+int ssl3_send_server_done(SSL *s)
+ {
+ unsigned char *p;
+
+ if (s->state == SSL3_ST_SW_SRVR_DONE_A)
+ {
+ p=(unsigned char *)s->init_buf->data;
+
+ /* do the header */
+ *(p++)=SSL3_MT_SERVER_DONE;
+ *(p++)=0;
+ *(p++)=0;
+ *(p++)=0;
+
+ s->state=SSL3_ST_SW_SRVR_DONE_B;
+ /* number of bytes to write */
+ s->init_num=4;
+ s->init_off=0;
+ }
+
+ /* SSL3_ST_CW_CLNT_HELLO_B */
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+ }
+
+int ssl3_send_server_key_exchange(SSL *s)
+ {
+#ifndef OPENSSL_NO_RSA
+ unsigned char *q;
+ int j,num;
+ RSA *rsa;
+ unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
+ unsigned int u;
+#endif
+#ifndef OPENSSL_NO_DH
+ DH *dh=NULL,*dhp;
+#endif
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *ecdh=NULL, *ecdhp;
+ unsigned char *encodedPoint = NULL;
+ int encodedlen = 0;
+ int curve_id = 0;
+ BN_CTX *bn_ctx = NULL;
+#endif
+ EVP_PKEY *pkey;
+ unsigned char *p,*d;
+ int al,i;
+ unsigned long type;
+ int n;
+ CERT *cert;
+ BIGNUM *r[4];
+ int nr[4],kn;
+ BUF_MEM *buf;
+ EVP_MD_CTX md_ctx;
+
+ EVP_MD_CTX_init(&md_ctx);
+ if (s->state == SSL3_ST_SW_KEY_EXCH_A)
+ {
+ type=s->s3->tmp.new_cipher->algorithms & SSL_MKEY_MASK;
+ cert=s->cert;
+
+ buf=s->init_buf;
+
+ r[0]=r[1]=r[2]=r[3]=NULL;
+ n=0;
+#ifndef OPENSSL_NO_RSA
+ if (type & SSL_kRSA)
+ {
+ rsa=cert->rsa_tmp;
+ if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL))
+ {
+ rsa=s->cert->rsa_tmp_cb(s,
+ SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
+ SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
+ if(rsa == NULL)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY);
+ goto f_err;
+ }
+ RSA_up_ref(rsa);
+ cert->rsa_tmp=rsa;
+ }
+ if (rsa == NULL)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY);
+ goto f_err;
+ }
+ r[0]=rsa->n;
+ r[1]=rsa->e;
+ s->s3->tmp.use_rsa_tmp=1;
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_DH
+ if (type & SSL_kEDH)
+ {
+ dhp=cert->dh_tmp;
+ if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL))
+ dhp=s->cert->dh_tmp_cb(s,
+ SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
+ SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
+ if (dhp == NULL)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);
+ goto f_err;
+ }
+
+ if (s->s3->tmp.dh != NULL)
+ {
+ DH_free(dh);
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ if ((dh=DHparams_dup(dhp)) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
+ goto err;
+ }
+
+ s->s3->tmp.dh=dh;
+ if ((dhp->pub_key == NULL ||
+ dhp->priv_key == NULL ||
+ (s->options & SSL_OP_SINGLE_DH_USE)))
+ {
+ if(!DH_generate_key(dh))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,
+ ERR_R_DH_LIB);
+ goto err;
+ }
+ }
+ else
+ {
+ dh->pub_key=BN_dup(dhp->pub_key);
+ dh->priv_key=BN_dup(dhp->priv_key);
+ if ((dh->pub_key == NULL) ||
+ (dh->priv_key == NULL))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
+ goto err;
+ }
+ }
+ r[0]=dh->p;
+ r[1]=dh->g;
+ r[2]=dh->pub_key;
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_ECDH
+ if (type & SSL_kECDHE)
+ {
+ const EC_GROUP *group;
+
+ ecdhp=cert->ecdh_tmp;
+ if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))
+ {
+ ecdhp=s->cert->ecdh_tmp_cb(s,
+ SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
+ SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
+ }
+ if (ecdhp == NULL)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
+ goto f_err;
+ }
+
+ if (s->s3->tmp.ecdh != NULL)
+ {
+ EC_KEY_free(s->s3->tmp.ecdh);
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ /* Duplicate the ECDH structure. */
+ if (ecdhp == NULL)
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+ goto err;
+ }
+ if (!EC_KEY_up_ref(ecdhp))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+ goto err;
+ }
+ ecdh = ecdhp;
+
+ s->s3->tmp.ecdh=ecdh;
+ if ((EC_KEY_get0_public_key(ecdh) == NULL) ||
+ (EC_KEY_get0_private_key(ecdh) == NULL) ||
+ (s->options & SSL_OP_SINGLE_ECDH_USE))
+ {
+ if(!EC_KEY_generate_key(ecdh))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+ goto err;
+ }
+ }
+
+ if (((group = EC_KEY_get0_group(ecdh)) == NULL) ||
+ (EC_KEY_get0_public_key(ecdh) == NULL) ||
+ (EC_KEY_get0_private_key(ecdh) == NULL))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
+ (EC_GROUP_get_degree(group) > 163))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
+ goto err;
+ }
+
+ /* XXX: For now, we only support ephemeral ECDH
+ * keys over named (not generic) curves. For
+ * supported named curves, curve_id is non-zero.
+ */
+ if ((curve_id =
+ nid2curve_id(EC_GROUP_get_curve_name(group)))
+ == 0)
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
+ goto err;
+ }
+
+ /* Encode the public key.
+ * First check the size of encoding and
+ * allocate memory accordingly.
+ */
+ encodedlen = EC_POINT_point2oct(group,
+ EC_KEY_get0_public_key(ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ NULL, 0, NULL);
+
+ encodedPoint = (unsigned char *)
+ OPENSSL_malloc(encodedlen*sizeof(unsigned char));
+ bn_ctx = BN_CTX_new();
+ if ((encodedPoint == NULL) || (bn_ctx == NULL))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+
+ encodedlen = EC_POINT_point2oct(group,
+ EC_KEY_get0_public_key(ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ encodedPoint, encodedlen, bn_ctx);
+
+ if (encodedlen == 0)
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ BN_CTX_free(bn_ctx); bn_ctx=NULL;
+
+ /* XXX: For now, we only support named (not
+ * generic) curves in ECDH ephemeral key exchanges.
+ * In this situation, we need four additional bytes
+ * to encode the entire ServerECDHParams
+ * structure.
+ */
+ n = 4 + encodedlen;
+
+ /* We'll generate the serverKeyExchange message
+ * explicitly so we can set these to NULLs
+ */
+ r[0]=NULL;
+ r[1]=NULL;
+ r[2]=NULL;
+ r[3]=NULL;
+ }
+ else
+#endif /* !OPENSSL_NO_ECDH */
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
+ goto f_err;
+ }
+ for (i=0; r[i] != NULL; i++)
+ {
+ nr[i]=BN_num_bytes(r[i]);
+ n+=2+nr[i];
+ }
+
+ if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
+ {
+ if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher))
+ == NULL)
+ {
+ al=SSL_AD_DECODE_ERROR;
+ goto f_err;
+ }
+ kn=EVP_PKEY_size(pkey);
+ }
+ else
+ {
+ pkey=NULL;
+ kn=0;
+ }
+
+ if (!BUF_MEM_grow_clean(buf,n+4+kn))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF);
+ goto err;
+ }
+ d=(unsigned char *)s->init_buf->data;
+ p= &(d[4]);
+
+ for (i=0; r[i] != NULL; i++)
+ {
+ s2n(nr[i],p);
+ BN_bn2bin(r[i],p);
+ p+=nr[i];
+ }
+
+#ifndef OPENSSL_NO_ECDH
+ if (type & SSL_kECDHE)
+ {
+ /* XXX: For now, we only support named (not generic) curves.
+ * In this situation, the serverKeyExchange message has:
+ * [1 byte CurveType], [2 byte CurveName]
+ * [1 byte length of encoded point], followed by
+ * the actual encoded point itself
+ */
+ *p = NAMED_CURVE_TYPE;
+ p += 1;
+ *p = 0;
+ p += 1;
+ *p = curve_id;
+ p += 1;
+ *p = encodedlen;
+ p += 1;
+ memcpy((unsigned char*)p,
+ (unsigned char *)encodedPoint,
+ encodedlen);
+ OPENSSL_free(encodedPoint);
+ p += encodedlen;
+ }
+#endif
+
+ /* not anonymous */
+ if (pkey != NULL)
+ {
+ /* n is the length of the params, they start at &(d[4])
+ * and p points to the space at the end. */
+#ifndef OPENSSL_NO_RSA
+ if (pkey->type == EVP_PKEY_RSA)
+ {
+ q=md_buf;
+ j=0;
+ for (num=2; num > 0; num--)
+ {
+ EVP_DigestInit_ex(&md_ctx,(num == 2)
+ ?s->ctx->md5:s->ctx->sha1, NULL);
+ EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
+ EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
+ EVP_DigestUpdate(&md_ctx,&(d[4]),n);
+ EVP_DigestFinal_ex(&md_ctx,q,
+ (unsigned int *)&i);
+ q+=i;
+ j+=i;
+ }
+ if (RSA_sign(NID_md5_sha1, md_buf, j,
+ &(p[2]), &u, pkey->pkey.rsa) <= 0)
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA);
+ goto err;
+ }
+ s2n(u,p);
+ n+=u+2;
+ }
+ else
+#endif
+#if !defined(OPENSSL_NO_DSA)
+ if (pkey->type == EVP_PKEY_DSA)
+ {
+ /* lets do DSS */
+ EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL);
+ EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
+ EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
+ EVP_SignUpdate(&md_ctx,&(d[4]),n);
+ if (!EVP_SignFinal(&md_ctx,&(p[2]),
+ (unsigned int *)&i,pkey))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA);
+ goto err;
+ }
+ s2n(i,p);
+ n+=i+2;
+ }
+ else
+#endif
+#if !defined(OPENSSL_NO_ECDSA)
+ if (pkey->type == EVP_PKEY_EC)
+ {
+ /* let's do ECDSA */
+ EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);
+ EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
+ EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
+ EVP_SignUpdate(&md_ctx,&(d[4]),n);
+ if (!EVP_SignFinal(&md_ctx,&(p[2]),
+ (unsigned int *)&i,pkey))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA);
+ goto err;
+ }
+ s2n(i,p);
+ n+=i+2;
+ }
+ else
+#endif
+ {
+ /* Is this error check actually needed? */
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE);
+ goto f_err;
+ }
+ }
+
+ *(d++)=SSL3_MT_SERVER_KEY_EXCHANGE;
+ l2n3(n,d);
+
+ /* we should now have things packed up, so lets send
+ * it off */
+ s->init_num=n+4;
+ s->init_off=0;
+ }
+
+ s->state = SSL3_ST_SW_KEY_EXCH_B;
+ EVP_MD_CTX_cleanup(&md_ctx);
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+err:
+#ifndef OPENSSL_NO_ECDH
+ if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
+ BN_CTX_free(bn_ctx);
+#endif
+ EVP_MD_CTX_cleanup(&md_ctx);
+ return(-1);
+ }
+
+int ssl3_send_certificate_request(SSL *s)
+ {
+ unsigned char *p,*d;
+ int i,j,nl,off,n;
+ STACK_OF(X509_NAME) *sk=NULL;
+ X509_NAME *name;
+ BUF_MEM *buf;
+
+ if (s->state == SSL3_ST_SW_CERT_REQ_A)
+ {
+ buf=s->init_buf;
+
+ d=p=(unsigned char *)&(buf->data[4]);
+
+ /* get the list of acceptable cert types */
+ p++;
+ n=ssl3_get_req_cert_type(s,p);
+ d[0]=n;
+ p+=n;
+ n++;
+
+ off=n;
+ p+=2;
+ n+=2;
+
+ sk=SSL_get_client_CA_list(s);
+ nl=0;
+ if (sk != NULL)
+ {
+ for (i=0; i<sk_X509_NAME_num(sk); i++)
+ {
+ name=sk_X509_NAME_value(sk,i);
+ j=i2d_X509_NAME(name,NULL);
+ if (!BUF_MEM_grow_clean(buf,4+n+j+2))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CERTIFICATE_REQUEST,ERR_R_BUF_LIB);
+ goto err;
+ }
+ p=(unsigned char *)&(buf->data[4+n]);
+ if (!(s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
+ {
+ s2n(j,p);
+ i2d_X509_NAME(name,&p);
+ n+=2+j;
+ nl+=2+j;
+ }
+ else
+ {
+ d=p;
+ i2d_X509_NAME(name,&p);
+ j-=2; s2n(j,d); j+=2;
+ n+=j;
+ nl+=j;
+ }
+ }
+ }
+ /* else no CA names */
+ p=(unsigned char *)&(buf->data[4+off]);
+ s2n(nl,p);
+
+ d=(unsigned char *)buf->data;
+ *(d++)=SSL3_MT_CERTIFICATE_REQUEST;
+ l2n3(n,d);
+
+ /* we should now have things packed up, so lets send
+ * it off */
+
+ s->init_num=n+4;
+ s->init_off=0;
+#ifdef NETSCAPE_HANG_BUG
+ p=(unsigned char *)s->init_buf->data + s->init_num;
+
+ /* do the header */
+ *(p++)=SSL3_MT_SERVER_DONE;
+ *(p++)=0;
+ *(p++)=0;
+ *(p++)=0;
+ s->init_num += 4;
+#endif
+
+ s->state = SSL3_ST_SW_CERT_REQ_B;
+ }
+
+ /* SSL3_ST_SW_CERT_REQ_B */
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+err:
+ return(-1);
+ }
+
+int ssl3_get_client_key_exchange(SSL *s)
+ {
+ int i,al,ok;
+ long n;
+ unsigned long l;
+ unsigned char *p;
+#ifndef OPENSSL_NO_RSA
+ RSA *rsa=NULL;
+ EVP_PKEY *pkey=NULL;
+#endif
+#ifndef OPENSSL_NO_DH
+ BIGNUM *pub=NULL;
+ DH *dh_srvr;
+#endif
+#ifndef OPENSSL_NO_KRB5
+ KSSL_ERR kssl_err;
+#endif /* OPENSSL_NO_KRB5 */
+
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *srvr_ecdh = NULL;
+ EVP_PKEY *clnt_pub_pkey = NULL;
+ EC_POINT *clnt_ecpoint = NULL;
+ BN_CTX *bn_ctx = NULL;
+#endif
+
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_SR_KEY_EXCH_A,
+ SSL3_ST_SR_KEY_EXCH_B,
+ SSL3_MT_CLIENT_KEY_EXCHANGE,
+ 2048, /* ??? */
+ &ok);
+
+ if (!ok) return((int)n);
+ p=(unsigned char *)s->init_msg;
+
+ l=s->s3->tmp.new_cipher->algorithms;
+
+#ifndef OPENSSL_NO_RSA
+ if (l & SSL_kRSA)
+ {
+ /* FIX THIS UP EAY EAY EAY EAY */
+ if (s->s3->tmp.use_rsa_tmp)
+ {
+ if ((s->cert != NULL) && (s->cert->rsa_tmp != NULL))
+ rsa=s->cert->rsa_tmp;
+ /* Don't do a callback because rsa_tmp should
+ * be sent already */
+ if (rsa == NULL)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_PKEY);
+ goto f_err;
+
+ }
+ }
+ else
+ {
+ pkey=s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey;
+ if ( (pkey == NULL) ||
+ (pkey->type != EVP_PKEY_RSA) ||
+ (pkey->pkey.rsa == NULL))
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_RSA_CERTIFICATE);
+ goto f_err;
+ }
+ rsa=pkey->pkey.rsa;
+ }
+
+ /* TLS and [incidentally] DTLS, including pre-0.9.8f */
+ if (s->version > SSL3_VERSION &&
+ s->client_version != DTLS1_BAD_VER)
+ {
+ n2s(p,i);
+ if (n != i+2)
+ {
+ if (!(s->options & SSL_OP_TLS_D5_BUG))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG);
+ goto err;
+ }
+ else
+ p-=2;
+ }
+ else
+ n=i;
+ }
+
+ i=RSA_private_decrypt((int)n,p,p,rsa,RSA_PKCS1_PADDING);
+
+ al = -1;
+
+ if (i != SSL_MAX_MASTER_KEY_LENGTH)
+ {
+ al=SSL_AD_DECODE_ERROR;
+ /* SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT); */
+ }
+
+ if ((al == -1) && !((p[0] == (s->client_version>>8)) && (p[1] == (s->client_version & 0xff))))
+ {
+ /* The premaster secret must contain the same version number as the
+ * ClientHello to detect version rollback attacks (strangely, the
+ * protocol does not offer such protection for DH ciphersuites).
+ * However, buggy clients exist that send the negotiated protocol
+ * version instead if the server does not support the requested
+ * protocol version.
+ * If SSL_OP_TLS_ROLLBACK_BUG is set, tolerate such clients. */
+ if (!((s->options & SSL_OP_TLS_ROLLBACK_BUG) &&
+ (p[0] == (s->version>>8)) && (p[1] == (s->version & 0xff))))
+ {
+ al=SSL_AD_DECODE_ERROR;
+ /* SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_PROTOCOL_VERSION_NUMBER); */
+
+ /* The Klima-Pokorny-Rosa extension of Bleichenbacher's attack
+ * (http://eprint.iacr.org/2003/052/) exploits the version
+ * number check as a "bad version oracle" -- an alert would
+ * reveal that the plaintext corresponding to some ciphertext
+ * made up by the adversary is properly formatted except
+ * that the version number is wrong. To avoid such attacks,
+ * we should treat this just like any other decryption error. */
+ }
+ }
+
+ if (al != -1)
+ {
+ /* Some decryption failure -- use random value instead as countermeasure
+ * against Bleichenbacher's attack on PKCS #1 v1.5 RSA padding
+ * (see RFC 2246, section 7.4.7.1). */
+ ERR_clear_error();
+ i = SSL_MAX_MASTER_KEY_LENGTH;
+ p[0] = s->client_version >> 8;
+ p[1] = s->client_version & 0xff;
+ if (RAND_pseudo_bytes(p+2, i-2) <= 0) /* should be RAND_bytes, but we cannot work around a failure */
+ goto err;
+ }
+
+ s->session->master_key_length=
+ s->method->ssl3_enc->generate_master_secret(s,
+ s->session->master_key,
+ p,i);
+ OPENSSL_cleanse(p,i);
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_DH
+ if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
+ {
+ n2s(p,i);
+ if (n != i+2)
+ {
+ if (!(s->options & SSL_OP_SSLEAY_080_CLIENT_DH_BUG))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG);
+ goto err;
+ }
+ else
+ {
+ p-=2;
+ i=(int)n;
+ }
+ }
+
+ if (n == 0L) /* the parameters are in the cert */
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_DECODE_DH_CERTS);
+ goto f_err;
+ }
+ else
+ {
+ if (s->s3->tmp.dh == NULL)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);
+ goto f_err;
+ }
+ else
+ dh_srvr=s->s3->tmp.dh;
+ }
+
+ pub=BN_bin2bn(p,i,NULL);
+ if (pub == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BN_LIB);
+ goto err;
+ }
+
+ i=DH_compute_key(p,pub,dh_srvr);
+
+ if (i <= 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
+ goto err;
+ }
+
+ DH_free(s->s3->tmp.dh);
+ s->s3->tmp.dh=NULL;
+
+ BN_clear_free(pub);
+ pub=NULL;
+ s->session->master_key_length=
+ s->method->ssl3_enc->generate_master_secret(s,
+ s->session->master_key,p,i);
+ OPENSSL_cleanse(p,i);
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_KRB5
+ if (l & SSL_kKRB5)
+ {
+ krb5_error_code krb5rc;
+ krb5_data enc_ticket;
+ krb5_data authenticator;
+ krb5_data enc_pms;
+ KSSL_CTX *kssl_ctx = s->kssl_ctx;
+ EVP_CIPHER_CTX ciph_ctx;
+ EVP_CIPHER *enc = NULL;
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+ unsigned char pms[SSL_MAX_MASTER_KEY_LENGTH
+ + EVP_MAX_BLOCK_LENGTH];
+ int padl, outl;
+ krb5_timestamp authtime = 0;
+ krb5_ticket_times ttimes;
+
+ EVP_CIPHER_CTX_init(&ciph_ctx);
+
+ if (!kssl_ctx) kssl_ctx = kssl_ctx_new();
+
+ n2s(p,i);
+ enc_ticket.length = i;
+
+ if (n < (int)enc_ticket.length + 6)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DATA_LENGTH_TOO_LONG);
+ goto err;
+ }
+
+ enc_ticket.data = (char *)p;
+ p+=enc_ticket.length;
+
+ n2s(p,i);
+ authenticator.length = i;
+
+ if (n < (int)(enc_ticket.length + authenticator.length) + 6)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DATA_LENGTH_TOO_LONG);
+ goto err;
+ }
+
+ authenticator.data = (char *)p;
+ p+=authenticator.length;
+
+ n2s(p,i);
+ enc_pms.length = i;
+ enc_pms.data = (char *)p;
+ p+=enc_pms.length;
+
+ /* Note that the length is checked again below,
+ ** after decryption
+ */
+ if(enc_pms.length > sizeof pms)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DATA_LENGTH_TOO_LONG);
+ goto err;
+ }
+
+ if (n != (long)(enc_ticket.length + authenticator.length +
+ enc_pms.length + 6))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DATA_LENGTH_TOO_LONG);
+ goto err;
+ }
+
+ if ((krb5rc = kssl_sget_tkt(kssl_ctx, &enc_ticket, &ttimes,
+ &kssl_err)) != 0)
+ {
+#ifdef KSSL_DEBUG
+ printf("kssl_sget_tkt rtn %d [%d]\n",
+ krb5rc, kssl_err.reason);
+ if (kssl_err.text)
+ printf("kssl_err text= %s\n", kssl_err.text);
+#endif /* KSSL_DEBUG */
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ kssl_err.reason);
+ goto err;
+ }
+
+ /* Note: no authenticator is not considered an error,
+ ** but will return authtime == 0.
+ */
+ if ((krb5rc = kssl_check_authent(kssl_ctx, &authenticator,
+ &authtime, &kssl_err)) != 0)
+ {
+#ifdef KSSL_DEBUG
+ printf("kssl_check_authent rtn %d [%d]\n",
+ krb5rc, kssl_err.reason);
+ if (kssl_err.text)
+ printf("kssl_err text= %s\n", kssl_err.text);
+#endif /* KSSL_DEBUG */
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ kssl_err.reason);
+ goto err;
+ }
+
+ if ((krb5rc = kssl_validate_times(authtime, &ttimes)) != 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, krb5rc);
+ goto err;
+ }
+
+#ifdef KSSL_DEBUG
+ kssl_ctx_show(kssl_ctx);
+#endif /* KSSL_DEBUG */
+
+ enc = kssl_map_enc(kssl_ctx->enctype);
+ if (enc == NULL)
+ goto err;
+
+ memset(iv, 0, sizeof iv); /* per RFC 1510 */
+
+ if (!EVP_DecryptInit_ex(&ciph_ctx,enc,NULL,kssl_ctx->key,iv))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DECRYPTION_FAILED);
+ goto err;
+ }
+ if (!EVP_DecryptUpdate(&ciph_ctx, pms,&outl,
+ (unsigned char *)enc_pms.data, enc_pms.length))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DECRYPTION_FAILED);
+ goto err;
+ }
+ if (outl > SSL_MAX_MASTER_KEY_LENGTH)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DATA_LENGTH_TOO_LONG);
+ goto err;
+ }
+ if (!EVP_DecryptFinal_ex(&ciph_ctx,&(pms[outl]),&padl))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DECRYPTION_FAILED);
+ goto err;
+ }
+ outl += padl;
+ if (outl > SSL_MAX_MASTER_KEY_LENGTH)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_DATA_LENGTH_TOO_LONG);
+ goto err;
+ }
+ if (!((pms[0] == (s->client_version>>8)) && (pms[1] == (s->client_version & 0xff))))
+ {
+ /* The premaster secret must contain the same version number as the
+ * ClientHello to detect version rollback attacks (strangely, the
+ * protocol does not offer such protection for DH ciphersuites).
+ * However, buggy clients exist that send random bytes instead of
+ * the protocol version.
+ * If SSL_OP_TLS_ROLLBACK_BUG is set, tolerate such clients.
+ * (Perhaps we should have a separate BUG value for the Kerberos cipher)
+ */
+ if (!(s->options & SSL_OP_TLS_ROLLBACK_BUG))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_AD_DECODE_ERROR);
+ goto err;
+ }
+ }
+ EVP_CIPHER_CTX_cleanup(&ciph_ctx);
+
+ s->session->master_key_length=
+ s->method->ssl3_enc->generate_master_secret(s,
+ s->session->master_key, pms, outl);
+
+ if (kssl_ctx->client_princ)
+ {
+ size_t len = strlen(kssl_ctx->client_princ);
+ if ( len < SSL_MAX_KRB5_PRINCIPAL_LENGTH )
+ {
+ s->session->krb5_client_princ_len = len;
+ memcpy(s->session->krb5_client_princ,kssl_ctx->client_princ,len);
+ }
+ }
+
+
+ /* Was doing kssl_ctx_free() here,
+ ** but it caused problems for apache.
+ ** kssl_ctx = kssl_ctx_free(kssl_ctx);
+ ** if (s->kssl_ctx) s->kssl_ctx = NULL;
+ */
+ }
+ else
+#endif /* OPENSSL_NO_KRB5 */
+
+#ifndef OPENSSL_NO_ECDH
+ if ((l & SSL_kECDH) || (l & SSL_kECDHE))
+ {
+ int ret = 1;
+ int field_size = 0;
+ const EC_KEY *tkey;
+ const EC_GROUP *group;
+ const BIGNUM *priv_key;
+
+ /* initialize structures for server's ECDH key pair */
+ if ((srvr_ecdh = EC_KEY_new()) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ /* Let's get server private key and group information */
+ if (l & SSL_kECDH)
+ {
+ /* use the certificate */
+ tkey = s->cert->pkeys[SSL_PKEY_ECC].privatekey->pkey.ec;
+ }
+ else
+ {
+ /* use the ephermeral values we saved when
+ * generating the ServerKeyExchange msg.
+ */
+ tkey = s->s3->tmp.ecdh;
+ }
+
+ group = EC_KEY_get0_group(tkey);
+ priv_key = EC_KEY_get0_private_key(tkey);
+
+ if (!EC_KEY_set_group(srvr_ecdh, group) ||
+ !EC_KEY_set_private_key(srvr_ecdh, priv_key))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_EC_LIB);
+ goto err;
+ }
+
+ /* Let's get client's public key */
+ if ((clnt_ecpoint = EC_POINT_new(group)) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (n == 0L)
+ {
+ /* Client Publickey was in Client Certificate */
+
+ if (l & SSL_kECDHE)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
+ goto f_err;
+ }
+ if (((clnt_pub_pkey=X509_get_pubkey(s->session->peer))
+ == NULL) ||
+ (clnt_pub_pkey->type != EVP_PKEY_EC))
+ {
+ /* XXX: For now, we do not support client
+ * authentication using ECDH certificates
+ * so this branch (n == 0L) of the code is
+ * never executed. When that support is
+ * added, we ought to ensure the key
+ * received in the certificate is
+ * authorized for key agreement.
+ * ECDH_compute_key implicitly checks that
+ * the two ECDH shares are for the same
+ * group.
+ */
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_UNABLE_TO_DECODE_ECDH_CERTS);
+ goto f_err;
+ }
+
+ if (EC_POINT_copy(clnt_ecpoint,
+ EC_KEY_get0_public_key(clnt_pub_pkey->pkey.ec)) == 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_EC_LIB);
+ goto err;
+ }
+ ret = 2; /* Skip certificate verify processing */
+ }
+ else
+ {
+ /* Get client's public key from encoded point
+ * in the ClientKeyExchange message.
+ */
+ if ((bn_ctx = BN_CTX_new()) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ /* Get encoded point length */
+ i = *p;
+ p += 1;
+ if (EC_POINT_oct2point(group,
+ clnt_ecpoint, p, i, bn_ctx) == 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_EC_LIB);
+ goto err;
+ }
+ /* p is pointing to somewhere in the buffer
+ * currently, so set it to the start
+ */
+ p=(unsigned char *)s->init_buf->data;
+ }
+
+ /* Compute the shared pre-master secret */
+ field_size = EC_GROUP_get_degree(group);
+ if (field_size <= 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+ i = ECDH_compute_key(p, (field_size+7)/8, clnt_ecpoint, srvr_ecdh, NULL);
+ if (i <= 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ EVP_PKEY_free(clnt_pub_pkey);
+ EC_POINT_free(clnt_ecpoint);
+ if (srvr_ecdh != NULL)
+ EC_KEY_free(srvr_ecdh);
+ BN_CTX_free(bn_ctx);
+
+ /* Compute the master secret */
+ s->session->master_key_length = s->method->ssl3_enc-> \
+ generate_master_secret(s, s->session->master_key, p, i);
+
+ OPENSSL_cleanse(p, i);
+ return (ret);
+ }
+ else
+#endif
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+ SSL_R_UNKNOWN_CIPHER_TYPE);
+ goto f_err;
+ }
+
+ return(1);
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_ECDH)
+err:
+#endif
+#ifndef OPENSSL_NO_ECDH
+ EVP_PKEY_free(clnt_pub_pkey);
+ EC_POINT_free(clnt_ecpoint);
+ if (srvr_ecdh != NULL)
+ EC_KEY_free(srvr_ecdh);
+ BN_CTX_free(bn_ctx);
+#endif
+ return(-1);
+ }
+
+int ssl3_get_cert_verify(SSL *s)
+ {
+ EVP_PKEY *pkey=NULL;
+ unsigned char *p;
+ int al,ok,ret=0;
+ long n;
+ int type=0,i,j;
+ X509 *peer;
+
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_SR_CERT_VRFY_A,
+ SSL3_ST_SR_CERT_VRFY_B,
+ -1,
+ 514, /* 514? */
+ &ok);
+
+ if (!ok) return((int)n);
+
+ if (s->session->peer != NULL)
+ {
+ peer=s->session->peer;
+ pkey=X509_get_pubkey(peer);
+ type=X509_certificate_type(peer,pkey);
+ }
+ else
+ {
+ peer=NULL;
+ pkey=NULL;
+ }
+
+ if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_VERIFY)
+ {
+ s->s3->tmp.reuse_message=1;
+ if ((peer != NULL) && (type | EVP_PKT_SIGN))
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_MISSING_VERIFY_MESSAGE);
+ goto f_err;
+ }
+ ret=1;
+ goto end;
+ }
+
+ if (peer == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_NO_CLIENT_CERT_RECEIVED);
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ goto f_err;
+ }
+
+ if (!(type & EVP_PKT_SIGN))
+ {
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE);
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ goto f_err;
+ }
+
+ if (s->s3->change_cipher_spec)
+ {
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_CCS_RECEIVED_EARLY);
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ goto f_err;
+ }
+
+ /* we now have a signature that we need to verify */
+ p=(unsigned char *)s->init_msg;
+ n2s(p,i);
+ n-=2;
+ if (i > n)
+ {
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_LENGTH_MISMATCH);
+ al=SSL_AD_DECODE_ERROR;
+ goto f_err;
+ }
+
+ j=EVP_PKEY_size(pkey);
+ if ((i > j) || (n > j) || (n <= 0))
+ {
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_WRONG_SIGNATURE_SIZE);
+ al=SSL_AD_DECODE_ERROR;
+ goto f_err;
+ }
+
+#ifndef OPENSSL_NO_RSA
+ if (pkey->type == EVP_PKEY_RSA)
+ {
+ i=RSA_verify(NID_md5_sha1, s->s3->tmp.cert_verify_md,
+ MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH, p, i,
+ pkey->pkey.rsa);
+ if (i < 0)
+ {
+ al=SSL_AD_DECRYPT_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_DECRYPT);
+ goto f_err;
+ }
+ if (i == 0)
+ {
+ al=SSL_AD_DECRYPT_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_SIGNATURE);
+ goto f_err;
+ }
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_DSA
+ if (pkey->type == EVP_PKEY_DSA)
+ {
+ j=DSA_verify(pkey->save_type,
+ &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]),
+ SHA_DIGEST_LENGTH,p,i,pkey->pkey.dsa);
+ if (j <= 0)
+ {
+ /* bad signature */
+ al=SSL_AD_DECRYPT_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_DSA_SIGNATURE);
+ goto f_err;
+ }
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_ECDSA
+ if (pkey->type == EVP_PKEY_EC)
+ {
+ j=ECDSA_verify(pkey->save_type,
+ &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]),
+ SHA_DIGEST_LENGTH,p,i,pkey->pkey.ec);
+ if (j <= 0)
+ {
+ /* bad signature */
+ al=SSL_AD_DECRYPT_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,
+ SSL_R_BAD_ECDSA_SIGNATURE);
+ goto f_err;
+ }
+ }
+ else
+#endif
+ {
+ SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,ERR_R_INTERNAL_ERROR);
+ al=SSL_AD_UNSUPPORTED_CERTIFICATE;
+ goto f_err;
+ }
+
+
+ ret=1;
+ if (0)
+ {
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+ }
+end:
+ EVP_PKEY_free(pkey);
+ return(ret);
+ }
+
+int ssl3_get_client_certificate(SSL *s)
+ {
+ int i,ok,al,ret= -1;
+ X509 *x=NULL;
+ unsigned long l,nc,llen,n;
+ const unsigned char *p,*q;
+ unsigned char *d;
+ STACK_OF(X509) *sk=NULL;
+
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_SR_CERT_A,
+ SSL3_ST_SR_CERT_B,
+ -1,
+ s->max_cert_list,
+ &ok);
+
+ if (!ok) return((int)n);
+
+ if (s->s3->tmp.message_type == SSL3_MT_CLIENT_KEY_EXCHANGE)
+ {
+ if ( (s->verify_mode & SSL_VERIFY_PEER) &&
+ (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE);
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ goto f_err;
+ }
+ /* If tls asked for a client cert, the client must return a 0 list */
+ if ((s->version > SSL3_VERSION) && s->s3->tmp.cert_request)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_TLS_PEER_DID_NOT_RESPOND_WITH_CERTIFICATE_LIST);
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ goto f_err;
+ }
+ s->s3->tmp.reuse_message=1;
+ return(1);
+ }
+
+ if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_WRONG_MESSAGE_TYPE);
+ goto f_err;
+ }
+ p=d=(unsigned char *)s->init_msg;
+
+ if ((sk=sk_X509_new_null()) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ n2l3(p,llen);
+ if (llen+3 != n)
+ {
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ for (nc=0; nc<llen; )
+ {
+ n2l3(p,l);
+ if ((l+nc+3) > llen)
+ {
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
+ goto f_err;
+ }
+
+ q=p;
+ x=d2i_X509(NULL,&p,l);
+ if (x == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,ERR_R_ASN1_LIB);
+ goto err;
+ }
+ if (p != (q+l))
+ {
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ if (!sk_X509_push(sk,x))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ x=NULL;
+ nc+=l+3;
+ }
+
+ if (sk_X509_num(sk) <= 0)
+ {
+ /* TLS does not mind 0 certs returned */
+ if (s->version == SSL3_VERSION)
+ {
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_NO_CERTIFICATES_RETURNED);
+ goto f_err;
+ }
+ /* Fail for TLS only if we required a certificate */
+ else if ((s->verify_mode & SSL_VERIFY_PEER) &&
+ (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT))
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE);
+ al=SSL_AD_HANDSHAKE_FAILURE;
+ goto f_err;
+ }
+ }
+ else
+ {
+ i=ssl_verify_cert_chain(s,sk);
+ if (!i)
+ {
+ al=ssl_verify_alarm_type(s->verify_result);
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_NO_CERTIFICATE_RETURNED);
+ goto f_err;
+ }
+ }
+
+ if (s->session->peer != NULL) /* This should not be needed */
+ X509_free(s->session->peer);
+ s->session->peer=sk_X509_shift(sk);
+ s->session->verify_result = s->verify_result;
+
+ /* With the current implementation, sess_cert will always be NULL
+ * when we arrive here. */
+ if (s->session->sess_cert == NULL)
+ {
+ s->session->sess_cert = ssl_sess_cert_new();
+ if (s->session->sess_cert == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ }
+ if (s->session->sess_cert->cert_chain != NULL)
+ sk_X509_pop_free(s->session->sess_cert->cert_chain, X509_free);
+ s->session->sess_cert->cert_chain=sk;
+ /* Inconsistency alert: cert_chain does *not* include the
+ * peer's own certificate, while we do include it in s3_clnt.c */
+
+ sk=NULL;
+
+ ret=1;
+ if (0)
+ {
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+ }
+err:
+ if (x != NULL) X509_free(x);
+ if (sk != NULL) sk_X509_pop_free(sk,X509_free);
+ return(ret);
+ }
+
+int ssl3_send_server_certificate(SSL *s)
+ {
+ unsigned long l;
+ X509 *x;
+
+ if (s->state == SSL3_ST_SW_CERT_A)
+ {
+ x=ssl_get_server_send_cert(s);
+ if (x == NULL &&
+ /* VRS: allow null cert if auth == KRB5 */
+ (s->s3->tmp.new_cipher->algorithms
+ & (SSL_MKEY_MASK|SSL_AUTH_MASK))
+ != (SSL_aKRB5|SSL_kKRB5))
+ {
+ SSLerr(SSL_F_SSL3_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR);
+ return(0);
+ }
+
+ l=ssl3_output_cert_chain(s,x);
+ s->state=SSL3_ST_SW_CERT_B;
+ s->init_num=(int)l;
+ s->init_off=0;
+ }
+
+ /* SSL3_ST_SW_CERT_B */
+ return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
+ }
+
+
+#ifndef OPENSSL_NO_ECDH
+/* This is the complement of curve_id2nid in s3_clnt.c. */
+static int nid2curve_id(int nid)
+{
+ /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
+ * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
+ switch (nid) {
+ case NID_sect163k1: /* sect163k1 (1) */
+ return 1;
+ case NID_sect163r1: /* sect163r1 (2) */
+ return 2;
+ case NID_sect163r2: /* sect163r2 (3) */
+ return 3;
+ case NID_sect193r1: /* sect193r1 (4) */
+ return 4;
+ case NID_sect193r2: /* sect193r2 (5) */
+ return 5;
+ case NID_sect233k1: /* sect233k1 (6) */
+ return 6;
+ case NID_sect233r1: /* sect233r1 (7) */
+ return 7;
+ case NID_sect239k1: /* sect239k1 (8) */
+ return 8;
+ case NID_sect283k1: /* sect283k1 (9) */
+ return 9;
+ case NID_sect283r1: /* sect283r1 (10) */
+ return 10;
+ case NID_sect409k1: /* sect409k1 (11) */
+ return 11;
+ case NID_sect409r1: /* sect409r1 (12) */
+ return 12;
+ case NID_sect571k1: /* sect571k1 (13) */
+ return 13;
+ case NID_sect571r1: /* sect571r1 (14) */
+ return 14;
+ case NID_secp160k1: /* secp160k1 (15) */
+ return 15;
+ case NID_secp160r1: /* secp160r1 (16) */
+ return 16;
+ case NID_secp160r2: /* secp160r2 (17) */
+ return 17;
+ case NID_secp192k1: /* secp192k1 (18) */
+ return 18;
+ case NID_X9_62_prime192v1: /* secp192r1 (19) */
+ return 19;
+ case NID_secp224k1: /* secp224k1 (20) */
+ return 20;
+ case NID_secp224r1: /* secp224r1 (21) */
+ return 21;
+ case NID_secp256k1: /* secp256k1 (22) */
+ return 22;
+ case NID_X9_62_prime256v1: /* secp256r1 (23) */
+ return 23;
+ case NID_secp384r1: /* secp384r1 (24) */
+ return 24;
+ case NID_secp521r1: /* secp521r1 (25) */
+ return 25;
+ default:
+ return 0;
+ }
+}
+#endif