-/* 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) 1998-2007 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/ocsp.h>
-#include <openssl/rand.h>
+#include <openssl/conf.h>
+#include <openssl/x509v3.h>
#include <openssl/dh.h>
#include <openssl/bn.h>
#include "ssl_locl.h"
# ifndef OPENSSL_NO_EC
/*
- * tls1_check_ec_tmp_key - Check EC temporary key compatiblity
+ * tls1_check_ec_tmp_key - Check EC temporary key compatibility
* @s: SSL connection
* @cid: Cipher ID we're considering using
*
/*-
* check for enough space.
- * 4 for the servername type and entension length
+ * 4 for the servername type and extension length
* 2 for servernamelist length
* 1 for the hostname type
* 2 for hostname length
/*-
* check for enough space.
- * 4 for the srp type type and entension length
+ * 4 for the srp type type and extension length
* 1 for the srp user identity
* + srp user identity length
*/
}
skip_ext:
- if (SSL_USE_SIGALGS(s)) {
+ if (SSL_CLIENT_USE_SIGALGS(s)) {
size_t salglen;
const unsigned char *salg;
unsigned char *etmp;
ret += salglen;
}
+#ifndef OPENSSL_NO_OCSP
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp) {
int i;
long extlen, idlen, itmp;
if (extlen > 0)
i2d_X509_EXTENSIONS(s->tlsext_ocsp_exts, &ret);
}
+#endif
#ifndef OPENSSL_NO_HEARTBEATS
if (SSL_IS_DTLS(s)) {
/* Add Heartbeat extension */
#ifndef OPENSSL_NO_NEXTPROTONEG
if (s->ctx->next_proto_select_cb && !s->s3->tmp.finish_md_len) {
/*
- * The client advertises an emtpy extension to indicate its support
+ * The client advertises an empty extension to indicate its support
* for Next Protocol Negotiation
*/
if (limit - ret - 4 < 0)
/* Add custom TLS Extensions to ClientHello */
if (!custom_ext_add(s, 0, &ret, limit, al))
return NULL;
-#ifdef TLSEXT_TYPE_encrypt_then_mac
s2n(TLSEXT_TYPE_encrypt_then_mac, ret);
s2n(0, ret);
-#endif
#ifndef OPENSSL_NO_CT
if (s->ct_validation_callback != NULL) {
s2n(TLSEXT_TYPE_signed_certificate_timestamp, ret);
return NULL;
s2n(TLSEXT_TYPE_session_ticket, ret);
s2n(0, ret);
+ } else {
+ /* if we don't add the above TLSEXT, we can't add a session ticket later */
+ s->tlsext_ticket_expected = 0;
}
if (s->tlsext_status_expected) {
#endif
if (!custom_ext_add(s, 1, &ret, limit, al))
return NULL;
-#ifdef TLSEXT_TYPE_encrypt_then_mac
if (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC) {
/*
* Don't use encrypt_then_mac if AEAD or RC4 might want to disable
s2n(0, ret);
}
}
-#endif
if (s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) {
s2n(TLSEXT_TYPE_extended_master_secret, ret);
s2n(0, ret);
/*
* Process the ALPN extension in a ClientHello.
- * ret: a pointer to the TLSEXT return value: SSL_TLSEXT_ERR_*
* al: a pointer to the alert value to send in the event of a failure.
- * returns 1 on success, 0
+ * returns 1 on success, 0 on error.
*/
-static int tls1_alpn_handle_client_hello_late(SSL *s, int *ret, int *al)
+static int tls1_alpn_handle_client_hello_late(SSL *s, int *al)
{
const unsigned char *selected = NULL;
unsigned char selected_len = 0;
s->s3->alpn_selected = OPENSSL_memdup(selected, selected_len);
if (s->s3->alpn_selected == NULL) {
*al = SSL_AD_INTERNAL_ERROR;
- *ret = SSL_TLSEXT_ERR_ALERT_FATAL;
return 0;
}
s->s3->alpn_selected_len = selected_len;
#endif
} else {
*al = SSL_AD_NO_APPLICATION_PROTOCOL;
- *ret = SSL_TLSEXT_ERR_ALERT_FATAL;
return 0;
}
}
/* Clear any signature algorithms extension received */
OPENSSL_free(s->s3->tmp.peer_sigalgs);
s->s3->tmp.peer_sigalgs = NULL;
-#ifdef TLSEXT_TYPE_encrypt_then_mac
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC;
-#endif
#ifndef OPENSSL_NO_SRP
OPENSSL_free(s->srp_ctx.login);
/*
* Although the server_name extension was intended to be
* extensible to new name types, RFC 4366 defined the
- * syntax inextensibly and OpenSSL 1.0.x parses it as
+ * syntax inextensibility and OpenSSL 1.0.x parses it as
* such.
* RFC 6066 corrected the mistake but adding new name types
* is nevertheless no longer feasible, so act as if no other
}
}
} else if (type == TLSEXT_TYPE_status_request) {
- const unsigned char *ext_data;
-
if (!PACKET_get_1(&extension,
(unsigned int *)&s->tlsext_status_type)) {
return 0;
}
+#ifndef OPENSSL_NO_OCSP
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp) {
+ const unsigned char *ext_data;
PACKET responder_id_list, exts;
if (!PACKET_get_length_prefixed_2(&extension, &responder_id_list))
return 0;
return 0;
}
}
- /*
- * We don't know what to do with any other type * so ignore it.
- */
- } else {
+ } else
+#endif
+ {
+ /*
+ * We don't know what to do with any other type so ignore it.
+ */
s->tlsext_status_type = -1;
}
}
*
* s->new_session will be set on renegotiation, but we
* probably shouldn't rely that it couldn't be set on
- * the initial renegotation too in certain cases (when
+ * the initial renegotiation too in certain cases (when
* there's some other reason to disallow resuming an
* earlier session -- the current code won't be doing
* anything like that, but this might change).
return 0;
}
#endif
-#ifdef TLSEXT_TYPE_encrypt_then_mac
else if (type == TLSEXT_TYPE_encrypt_then_mac)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC;
-#endif
/*
* Note: extended master secret extension handled in
* tls_check_serverhello_tlsext_early()
*/
static char ssl_next_proto_validate(PACKET *pkt)
{
- unsigned int len;
+ PACKET tmp_protocol;
while (PACKET_remaining(pkt)) {
- if (!PACKET_get_1(pkt, &len)
- || !PACKET_forward(pkt, len))
+ if (!PACKET_get_length_prefixed_1(pkt, &tmp_protocol)
+ || PACKET_remaining(&tmp_protocol) == 0)
return 0;
}
SSL_DTLSEXT_HB_DONT_SEND_REQUESTS);
#endif
-#ifdef TLSEXT_TYPE_encrypt_then_mac
s->s3->flags &= ~TLS1_FLAGS_ENCRYPT_THEN_MAC;
-#endif
s->s3->flags &= ~TLS1_FLAGS_RECEIVED_EXTMS;
return 0;
}
#endif
-#ifdef TLSEXT_TYPE_encrypt_then_mac
else if (type == TLSEXT_TYPE_encrypt_then_mac) {
/* Ignore if inappropriate ciphersuite */
if (s->s3->tmp.new_cipher->algorithm_mac != SSL_AEAD
&& s->s3->tmp.new_cipher->algorithm_enc != SSL_RC4)
s->s3->flags |= TLS1_FLAGS_ENCRYPT_THEN_MAC;
}
-#endif
else if (type == TLSEXT_TYPE_extended_master_secret) {
s->s3->flags |= TLS1_FLAGS_RECEIVED_EXTMS;
if (!s->hit)
* an attack we should *always* see RI even on initial server hello
* because the client doesn't see any renegotiation during an attack.
* However this would mean we could not connect to any server which
- * doesn't support RI so for the immediate future tolerate RI absence on
- * initial connect only.
+ * doesn't support RI so for the immediate future tolerate RI absence
*/
if (!renegotiate_seen && !(s->options & SSL_OP_LEGACY_SERVER_CONNECT)
&& !(s->options & SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION)) {
{
int al;
size_t i;
- /* Clear any shared sigtnature algorithms */
+
+ /* Clear any shared signature algorithms */
OPENSSL_free(s->cert->shared_sigalgs);
s->cert->shared_sigalgs = NULL;
s->cert->shared_sigalgslen = 0;
/* Fatal error is no shared signature algorithms */
if (!s->cert->shared_sigalgs) {
SSLerr(SSL_F_TLS1_SET_SERVER_SIGALGS,
- SSL_R_NO_SHARED_SIGATURE_ALGORITHMS);
+ SSL_R_NO_SHARED_SIGNATURE_ALGORITHMS);
al = SSL_AD_ILLEGAL_PARAMETER;
goto err;
}
return 0;
}
-int ssl_check_clienthello_tlsext_late(SSL *s)
+/*
+ * Upon success, returns 1.
+ * Upon failure, returns 0 and sets |al| to the appropriate fatal alert.
+ */
+int ssl_check_clienthello_tlsext_late(SSL *s, int *al)
{
- int ret = SSL_TLSEXT_ERR_OK;
- int al = SSL_AD_INTERNAL_ERROR;
+ s->tlsext_status_expected = 0;
/*
* If status request then ask callback what to do. Note: this must be
* influence which certificate is sent
*/
if ((s->tlsext_status_type != -1) && s->ctx && s->ctx->tlsext_status_cb) {
- int r;
+ int ret;
CERT_PKEY *certpkey;
certpkey = ssl_get_server_send_pkey(s);
/* If no certificate can't return certificate status */
- if (certpkey == NULL) {
- s->tlsext_status_expected = 0;
- return 1;
- }
- /*
- * Set current certificate to one we will use so SSL_get_certificate
- * et al can pick it up.
- */
- s->cert->key = certpkey;
- r = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
- switch (r) {
- /* We don't want to send a status request response */
- case SSL_TLSEXT_ERR_NOACK:
- s->tlsext_status_expected = 0;
- break;
- /* status request response should be sent */
- case SSL_TLSEXT_ERR_OK:
- if (s->tlsext_ocsp_resp)
- s->tlsext_status_expected = 1;
- else
+ if (certpkey != NULL) {
+ /*
+ * Set current certificate to one we will use so SSL_get_certificate
+ * et al can pick it up.
+ */
+ s->cert->key = certpkey;
+ ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
+ switch (ret) {
+ /* We don't want to send a status request response */
+ case SSL_TLSEXT_ERR_NOACK:
s->tlsext_status_expected = 0;
- break;
- /* something bad happened */
- case SSL_TLSEXT_ERR_ALERT_FATAL:
- ret = SSL_TLSEXT_ERR_ALERT_FATAL;
- al = SSL_AD_INTERNAL_ERROR;
- goto err;
+ break;
+ /* status request response should be sent */
+ case SSL_TLSEXT_ERR_OK:
+ if (s->tlsext_ocsp_resp)
+ s->tlsext_status_expected = 1;
+ break;
+ /* something bad happened */
+ case SSL_TLSEXT_ERR_ALERT_FATAL:
+ default:
+ *al = SSL_AD_INTERNAL_ERROR;
+ return 0;
+ }
}
- } else
- s->tlsext_status_expected = 0;
-
- if (!tls1_alpn_handle_client_hello_late(s, &ret, &al)) {
- goto err;
}
- err:
- switch (ret) {
- case SSL_TLSEXT_ERR_ALERT_FATAL:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- return -1;
-
- case SSL_TLSEXT_ERR_ALERT_WARNING:
- ssl3_send_alert(s, SSL3_AL_WARNING, al);
- return 1;
-
- default:
- return 1;
+ if (!tls1_alpn_handle_client_hello_late(s, al)) {
+ return 0;
}
+
+ return 1;
}
int ssl_check_serverhello_tlsext(SSL *s)
* tls_decrypt_ticket attempts to decrypt a session ticket.
*
* etick: points to the body of the session ticket extension.
- * eticklen: the length of the session tickets extenion.
+ * eticklen: the length of the session tickets extension.
* sess_id: points at the session ID.
* sesslen: the length of the session ID.
* psess: (output) on return, if a ticket was decrypted, then this is set to
renew_ticket = 1;
} else {
/* Check key name matches */
- if (memcmp(etick, tctx->tlsext_tick_key_name, 16)) {
+ if (memcmp(etick, tctx->tlsext_tick_key_name,
+ sizeof(tctx->tlsext_tick_key_name)) != 0) {
ret = 2;
goto err;
}
- if (HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key, 16,
+ if (HMAC_Init_ex(hctx, tctx->tlsext_tick_hmac_key,
+ sizeof(tctx->tlsext_tick_hmac_key),
EVP_sha256(), NULL) <= 0
- || EVP_DecryptInit_ex(ctx, EVP_aes_128_cbc(), NULL,
+ || EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), NULL,
tctx->tlsext_tick_aes_key,
- etick + 16) <= 0) {
+ etick + sizeof(tctx->tlsext_tick_key_name)) <= 0) {
goto err;
}
}
}
/*
- * Set suppored signature algorithms based on a colon separated list of the
+ * Set supported signature algorithms based on a colon separated list of the
* form sig+hash e.g. RSA+SHA512:DSA+SHA512
*/
int tls1_set_sigalgs_list(CERT *c, const char *str, int client)
if (dh_secbits >= 128) {
DH *dhp = DH_new();
+ BIGNUM *p, *g;
if (dhp == NULL)
return NULL;
- dhp->g = BN_new();
- if (dhp->g != NULL)
- BN_set_word(dhp->g, 2);
+ g = BN_new();
+ if (g != NULL)
+ BN_set_word(g, 2);
if (dh_secbits >= 192)
- dhp->p = get_rfc3526_prime_8192(NULL);
+ p = BN_get_rfc3526_prime_8192(NULL);
else
- dhp->p = get_rfc3526_prime_3072(NULL);
- if (dhp->p == NULL || dhp->g == NULL) {
+ p = BN_get_rfc3526_prime_3072(NULL);
+ if (p == NULL || g == NULL || !DH_set0_pqg(dhp, p, NULL, g)) {
DH_free(dhp);
+ BN_free(p);
+ BN_free(g);
return NULL;
}
return dhp;
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