/*
* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (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 <string.h>
#include "internal/nelem.h"
#include "internal/cryptlib.h"
-#include "../ssl_locl.h"
-#include "statem_locl.h"
+#include "../ssl_local.h"
+#include "statem_local.h"
#include "internal/cryptlib.h"
static int final_renegotiate(SSL *s, unsigned int context, int sent);
static int init_ems(SSL *s, unsigned int context);
static int final_ems(SSL *s, unsigned int context, int sent);
static int init_psk_kex_modes(SSL *s, unsigned int context);
-#ifndef OPENSSL_NO_EC
static int final_key_share(SSL *s, unsigned int context, int sent);
-#endif
#ifndef OPENSSL_NO_SRTP
static int init_srtp(SSL *s, unsigned int context);
#endif
/*
* Definitions of all built-in extensions. NOTE: Changes in the number or order
* of these extensions should be mirrored with equivalent changes to the
- * indexes ( TLSEXT_IDX_* ) defined in ssl_locl.h.
+ * indexes ( TLSEXT_IDX_* ) defined in ssl_local.h.
* Each extension has an initialiser, a client and
* server side parser and a finaliser. The initialiser is called (if the
* extension is relevant to the given context) even if we did not see the
tls_construct_stoc_ec_pt_formats, tls_construct_ctos_ec_pt_formats,
final_ec_pt_formats
},
+#else
+ INVALID_EXTENSION,
+#endif
+#if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
{
/*
* "supported_groups" is spread across several specifications.
},
#else
INVALID_EXTENSION,
- INVALID_EXTENSION,
#endif
{
TLSEXT_TYPE_session_ticket,
init_psk_kex_modes, tls_parse_ctos_psk_kex_modes, NULL, NULL,
tls_construct_ctos_psk_kex_modes, NULL
},
-#ifndef OPENSSL_NO_EC
{
/*
* Must be in this list after supported_groups. We need that to have
tls_construct_stoc_key_share, tls_construct_ctos_key_share,
final_key_share
},
-#endif
{
/* Must be after key_share */
TLSEXT_TYPE_cookie,
{
/*
* Special unsolicited ServerHello extension only used when
- * SSL_OP_CRYPTOPRO_TLSEXT_BUG is set
+ * SSL_OP_CRYPTOPRO_TLSEXT_BUG is set. We allow it in a ClientHello but
+ * ignore it.
*/
TLSEXT_TYPE_cryptopro_bug,
- SSL_EXT_TLS1_2_SERVER_HELLO | SSL_EXT_TLS1_2_AND_BELOW_ONLY,
+ SSL_EXT_CLIENT_HELLO | SSL_EXT_TLS1_2_SERVER_HELLO
+ | SSL_EXT_TLS1_2_AND_BELOW_ONLY,
NULL, NULL, NULL, tls_construct_stoc_cryptopro_bug, NULL, NULL
},
{
&& type != TLSEXT_TYPE_cookie
&& type != TLSEXT_TYPE_renegotiate
&& type != TLSEXT_TYPE_signed_certificate_timestamp
- && (s->ext.extflags[idx] & SSL_EXT_FLAG_SENT) == 0) {
+ && (s->ext.extflags[idx] & SSL_EXT_FLAG_SENT) == 0
+#ifndef OPENSSL_NO_GOST
+ && !((context & SSL_EXT_TLS1_2_SERVER_HELLO) != 0
+ && type == TLSEXT_TYPE_cryptopro_bug)
+#endif
+ ) {
SSLfatal(s, SSL_AD_UNSUPPORTED_EXTENSION,
SSL_F_TLS_COLLECT_EXTENSIONS, SSL_R_UNSOLICITED_EXTENSION);
goto err;
}
if ((context & SSL_EXT_CLIENT_HELLO) != 0) {
- reason = ssl_get_min_max_version(s, &min_version, &max_version);
+ reason = ssl_get_min_max_version(s, &min_version, &max_version, NULL);
if (reason != 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_EXTENSIONS,
reason);
static int init_server_name(SSL *s, unsigned int context)
{
- if (s->server)
+ if (s->server) {
s->servername_done = 0;
+ OPENSSL_free(s->ext.hostname);
+ s->ext.hostname = NULL;
+ }
+
return 1;
}
static int final_server_name(SSL *s, unsigned int context, int sent)
{
- int ret = SSL_TLSEXT_ERR_NOACK, discard;
+ int ret = SSL_TLSEXT_ERR_NOACK;
int altmp = SSL_AD_UNRECOGNIZED_NAME;
int was_ticket = (SSL_get_options(s) & SSL_OP_NO_TICKET) == 0;
* was successful.
*/
if (s->server) {
- if (!sent) {
- /* Nothing from the client this handshake; cleanup stale value */
- OPENSSL_free(s->ext.hostname);
- s->ext.hostname = NULL;
- } else if (ret == SSL_TLSEXT_ERR_OK && (!s->hit || SSL_IS_TLS13(s))) {
+ if (sent && ret == SSL_TLSEXT_ERR_OK && !s->hit) {
/* Only store the hostname in the session if we accepted it. */
OPENSSL_free(s->session->ext.hostname);
s->session->ext.hostname = OPENSSL_strdup(s->ext.hostname);
* exceed sess_accept (zero) for the new context.
*/
if (SSL_IS_FIRST_HANDSHAKE(s) && s->ctx != s->session_ctx) {
- CRYPTO_atomic_add(&s->ctx->stats.sess_accept, 1, &discard,
- s->ctx->lock);
- CRYPTO_atomic_add(&s->session_ctx->stats.sess_accept, -1, &discard,
- s->session_ctx->lock);
+ tsan_counter(&s->ctx->stats.sess_accept);
+ tsan_decr(&s->session_ctx->stats.sess_accept);
}
/*
ss->ext.ticklen = 0;
ss->ext.tick_lifetime_hint = 0;
ss->ext.tick_age_add = 0;
- ss->ext.tick_identity = 0;
if (!ssl_generate_session_id(s, ss)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_FINAL_SERVER_NAME,
ERR_R_INTERNAL_ERROR);
/* TLSv1.3 doesn't have warning alerts so we suppress this */
if (!SSL_IS_TLS13(s))
ssl3_send_alert(s, SSL3_AL_WARNING, altmp);
+ s->servername_done = 0;
return 1;
case SSL_TLSEXT_ERR_NOACK:
if (s->server)
return 1;
- alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
- alg_a = s->s3->tmp.new_cipher->algorithm_auth;
+ alg_k = s->s3.tmp.new_cipher->algorithm_mkey;
+ alg_a = s->s3.tmp.new_cipher->algorithm_auth;
/*
* If we are client and using an elliptic curve cryptography cipher
*/
if (s->ext.ecpointformats != NULL
&& s->ext.ecpointformats_len > 0
- && s->session->ext.ecpointformats != NULL
- && s->session->ext.ecpointformats_len > 0
+ && s->ext.peer_ecpointformats != NULL
+ && s->ext.peer_ecpointformats_len > 0
&& ((alg_k & SSL_kECDHE) || (alg_a & SSL_aECDSA))) {
/* we are using an ECC cipher */
size_t i;
- unsigned char *list = s->session->ext.ecpointformats;
+ unsigned char *list = s->ext.peer_ecpointformats;
- for (i = 0; i < s->session->ext.ecpointformats_len; i++) {
+ for (i = 0; i < s->ext.peer_ecpointformats_len; i++) {
if (*list++ == TLSEXT_ECPOINTFORMAT_uncompressed)
break;
}
- if (i == s->session->ext.ecpointformats_len) {
+ if (i == s->ext.peer_ecpointformats_len) {
SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_FINAL_EC_PT_FORMATS,
SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST);
return 0;
#ifndef OPENSSL_NO_NEXTPROTONEG
static int init_npn(SSL *s, unsigned int context)
{
- s->s3->npn_seen = 0;
+ s->s3.npn_seen = 0;
return 1;
}
static int init_alpn(SSL *s, unsigned int context)
{
- OPENSSL_free(s->s3->alpn_selected);
- s->s3->alpn_selected = NULL;
- s->s3->alpn_selected_len = 0;
+ OPENSSL_free(s->s3.alpn_selected);
+ s->s3.alpn_selected = NULL;
+ s->s3.alpn_selected_len = 0;
if (s->server) {
- OPENSSL_free(s->s3->alpn_proposed);
- s->s3->alpn_proposed = NULL;
- s->s3->alpn_proposed_len = 0;
+ OPENSSL_free(s->s3.alpn_proposed);
+ s->s3.alpn_proposed = NULL;
+ s->s3.alpn_proposed_len = 0;
}
return 1;
}
static int init_sig_algs(SSL *s, unsigned int context)
{
/* Clear any signature algorithms extension received */
- OPENSSL_free(s->s3->tmp.peer_sigalgs);
- s->s3->tmp.peer_sigalgs = NULL;
+ OPENSSL_free(s->s3.tmp.peer_sigalgs);
+ s->s3.tmp.peer_sigalgs = NULL;
return 1;
}
static int init_sig_algs_cert(SSL *s, unsigned int context)
{
/* Clear any signature algorithms extension received */
- OPENSSL_free(s->s3->tmp.peer_cert_sigalgs);
- s->s3->tmp.peer_cert_sigalgs = NULL;
+ OPENSSL_free(s->s3.tmp.peer_cert_sigalgs);
+ s->s3.tmp.peer_cert_sigalgs = NULL;
return 1;
}
static int init_ems(SSL *s, unsigned int context)
{
- if (!s->server)
- s->s3->flags &= ~TLS1_FLAGS_RECEIVED_EXTMS;
+ s->s3.flags &= ~TLS1_FLAGS_RECEIVED_EXTMS;
return 1;
}
* Check extended master secret extension is consistent with
* original session.
*/
- if (!(s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) !=
+ if (!(s->s3.flags & TLS1_FLAGS_RECEIVED_EXTMS) !=
!(s->session->flags & SSL_SESS_FLAG_EXTMS)) {
SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_FINAL_EMS,
SSL_R_INCONSISTENT_EXTMS);
static int init_certificate_authorities(SSL *s, unsigned int context)
{
- sk_X509_NAME_pop_free(s->s3->tmp.peer_ca_names, X509_NAME_free);
- s->s3->tmp.peer_ca_names = NULL;
+ sk_X509_NAME_pop_free(s->s3.tmp.peer_ca_names, X509_NAME_free);
+ s->s3.tmp.peer_ca_names = NULL;
return 1;
}
X509 *x,
size_t chainidx)
{
- const STACK_OF(X509_NAME) *ca_sk = SSL_get0_CA_list(s);
+ const STACK_OF(X509_NAME) *ca_sk = get_ca_names(s);
if (ca_sk == NULL || sk_X509_NAME_num(ca_sk) == 0)
return EXT_RETURN_NOT_SENT;
return EXT_RETURN_FAIL;
}
- if (!construct_ca_names(s, pkt)) {
+ if (!construct_ca_names(s, ca_sk, pkt)) {
/* SSLfatal() already called */
return EXT_RETURN_FAIL;
}
return 1;
}
-#ifndef OPENSSL_NO_EC
static int final_key_share(SSL *s, unsigned int context, int sent)
{
+#if !defined(OPENSSL_NO_TLS1_3)
if (!SSL_IS_TLS13(s))
return 1;
* send a HelloRetryRequest
*/
if (s->server) {
- if (s->s3->peer_tmp != NULL) {
+ if (s->s3.peer_tmp != NULL) {
/* We have a suitable key_share */
- if ((s->s3->flags & TLS1_FLAGS_STATELESS) != 0
+ if ((s->s3.flags & TLS1_FLAGS_STATELESS) != 0
&& !s->ext.cookieok) {
if (!ossl_assert(s->hello_retry_request == SSL_HRR_NONE)) {
/*
if (i < num_groups) {
/* A shared group exists so send a HelloRetryRequest */
- s->s3->group_id = group_id;
+ s->s3.group_id = group_id;
s->hello_retry_request = SSL_HRR_PENDING;
return 1;
}
return 0;
}
- if ((s->s3->flags & TLS1_FLAGS_STATELESS) != 0
+ if ((s->s3.flags & TLS1_FLAGS_STATELESS) != 0
&& !s->ext.cookieok) {
if (!ossl_assert(s->hello_retry_request == SSL_HRR_NONE)) {
/*
return 0;
}
}
-
+#endif /* !defined(OPENSSL_NO_TLS1_3) */
return 1;
}
-#endif
static int init_psk_kex_modes(SSL *s, unsigned int context)
{
unsigned char hash[EVP_MAX_MD_SIZE], binderkey[EVP_MAX_MD_SIZE];
unsigned char finishedkey[EVP_MAX_MD_SIZE], tmpbinder[EVP_MAX_MD_SIZE];
unsigned char *early_secret;
+#ifdef CHARSET_EBCDIC
+ static const unsigned char resumption_label[] = { 0x72, 0x65, 0x73, 0x20, 0x62, 0x69, 0x6E, 0x64, 0x65, 0x72, 0x00 };
+ static const unsigned char external_label[] = { 0x65, 0x78, 0x74, 0x20, 0x62, 0x69, 0x6E, 0x64, 0x65, 0x72, 0x00 };
+#else
static const unsigned char resumption_label[] = "res binder";
static const unsigned char external_label[] = "ext binder";
+#endif
const unsigned char *label;
size_t bindersize, labelsize, hashsize;
int hashsizei = EVP_MD_size(md);
/* Generate the binder key */
if (!tls13_hkdf_expand(s, md, early_secret, label, labelsize, hash,
- hashsize, binderkey, hashsize)) {
+ hashsize, binderkey, hashsize, 1)) {
/* SSLfatal() already called */
goto err;
}
*/
if (s->hello_retry_request == SSL_HRR_PENDING) {
size_t hdatalen;
+ long hdatalen_l;
void *hdata;
- hdatalen = BIO_get_mem_data(s->s3->handshake_buffer, &hdata);
- if (hdatalen <= 0) {
+ hdatalen = hdatalen_l =
+ BIO_get_mem_data(s->s3.handshake_buffer, &hdata);
+ if (hdatalen_l <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PSK_DO_BINDER,
SSL_R_BAD_HANDSHAKE_LENGTH);
goto err;
binderout = tmpbinder;
bindersize = hashsize;
- if (EVP_DigestSignInit(mctx, NULL, md, NULL, mackey) <= 0
+ if (EVP_DigestSignInit_ex(mctx, NULL, EVP_MD_name(md), s->ctx->propq,
+ mackey, s->ctx->libctx) <= 0
|| EVP_DigestSignUpdate(mctx, hash, hashsize) <= 0
|| EVP_DigestSignFinal(mctx, binderout, &bindersize) <= 0
|| bindersize != hashsize) {
if (s->max_early_data == 0
|| !s->hit
- || s->session->ext.tick_identity != 0
|| s->early_data_state != SSL_EARLY_DATA_ACCEPTING
|| !s->ext.early_data_ok
|| s->hello_retry_request != SSL_HRR_NONE
- || (s->ctx->allow_early_data_cb != NULL
- && !s->ctx->allow_early_data_cb(s,
- s->ctx->allow_early_data_cb_data))) {
+ || (s->allow_early_data_cb != NULL
+ && !s->allow_early_data_cb(s,
+ s->allow_early_data_cb_data))) {
s->ext.early_data = SSL_EARLY_DATA_REJECTED;
} else {
s->ext.early_data = SSL_EARLY_DATA_ACCEPTED;
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