/*
* 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
#ifndef OPENSSL_NO_EC
static int use_ecc(SSL *s)
{
- int i, end;
+ int i, end, ret = 0;
unsigned long alg_k, alg_a;
STACK_OF(SSL_CIPHER) *cipher_stack = NULL;
if (s->version == SSL3_VERSION)
return 0;
- cipher_stack = SSL_get_ciphers(s);
+ cipher_stack = SSL_get1_supported_ciphers(s);
end = sk_SSL_CIPHER_num(cipher_stack);
for (i = 0; i < end; i++) {
const SSL_CIPHER *c = sk_SSL_CIPHER_value(cipher_stack, i);
alg_a = c->algorithm_auth;
if ((alg_k & (SSL_kECDHE | SSL_kECDHEPSK))
|| (alg_a & SSL_aECDSA)
- || c->min_tls >= TLS1_3_VERSION)
- return 1;
+ || c->min_tls >= TLS1_3_VERSION) {
+ ret = 1;
+ break;
+ }
}
- return 0;
+ sk_SSL_CIPHER_free(cipher_stack);
+ return ret;
}
EXT_RETURN tls_construct_ctos_ec_pt_formats(SSL *s, WPACKET *pkt,
EXT_RETURN tls_construct_ctos_ems(SSL *s, WPACKET *pkt, unsigned int context,
X509 *x, size_t chainidx)
{
+ if (s->options & SSL_OP_NO_EXTENDED_MASTER_SECRET)
+ return EXT_RETURN_NOT_SENT;
+
if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_extended_master_secret)
|| !WPACKET_put_bytes_u16(pkt, 0)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CTOS_EMS,
{
int currv, min_version, max_version, reason;
- 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_CTOS_SUPPORTED_VERSIONS, reason);
return EXT_RETURN_FAIL;
}
- /*
- * TODO(TLS1.3): There is some discussion on the TLS list as to whether
- * we should include versions <TLS1.2. For the moment we do. To be
- * reviewed later.
- */
for (currv = max_version; currv >= min_version; currv--) {
- /* TODO(TLS1.3): Remove this first if clause prior to release!! */
- if (currv == TLS1_3_VERSION) {
- if (!WPACKET_put_bytes_u16(pkt, TLS1_3_VERSION_DRAFT)) {
- SSLfatal(s, SSL_AD_INTERNAL_ERROR,
- SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_VERSIONS,
- ERR_R_INTERNAL_ERROR);
- return EXT_RETURN_FAIL;
- }
- } else if (!WPACKET_put_bytes_u16(pkt, currv)) {
+ if (!WPACKET_put_bytes_u16(pkt, currv)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_CTOS_SUPPORTED_VERSIONS,
ERR_R_INTERNAL_ERROR);
unsigned int context, X509 *x,
size_t chainidx)
{
+#ifndef OPENSSL_NO_PSK
char identity[PSK_MAX_IDENTITY_LEN + 1];
+#endif /* OPENSSL_NO_PSK */
const unsigned char *id = NULL;
size_t idlen = 0;
SSL_SESSION *psksess = NULL;
return EXT_RETURN_FAIL;
}
+#ifndef OPENSSL_NO_PSK
if (psksess == NULL && s->psk_client_callback != NULL) {
unsigned char psk[PSK_MAX_PSK_LEN];
size_t psklen = 0;
OPENSSL_cleanse(psk, psklen);
}
}
+#endif /* OPENSSL_NO_PSK */
SSL_SESSION_free(s->psksession);
s->psksession = psksess;
const EVP_MD *handmd = NULL, *mdres = NULL, *mdpsk = NULL;
int dores = 0;
- s->session->ext.tick_identity = TLSEXT_PSK_BAD_IDENTITY;
+ s->ext.tick_identity = 0;
/*
* Note: At this stage of the code we only support adding a single
agems += s->session->ext.tick_age_add;
reshashsize = EVP_MD_size(mdres);
+ s->ext.tick_identity++;
dores = 1;
}
ERR_R_INTERNAL_ERROR);
return EXT_RETURN_FAIL;
}
+ s->ext.tick_identity++;
}
if (!WPACKET_close(pkt)
return EXT_RETURN_FAIL;
}
- if (dores)
- s->session->ext.tick_identity = 0;
- if (s->psksession != NULL)
- s->psksession->ext.tick_identity = (dores ? 1 : 0);
-
return EXT_RETURN_SENT;
#else
return EXT_RETURN_NOT_SENT;
X509 *x, size_t chainidx)
{
#ifndef OPENSSL_NO_TLS1_3
- if (!s->pha_forced) {
- int i, n = 0;
-
- /* check for cert, if present, we can do post-handshake auth */
- if (s->cert == NULL)
- return EXT_RETURN_NOT_SENT;
-
- for (i = 0; i < SSL_PKEY_NUM; i++) {
- if (s->cert->pkeys[i].x509 != NULL
- && s->cert->pkeys[i].privatekey != NULL)
- n++;
- }
-
- /* no identity certificates, so no extension */
- if (n == 0)
- return EXT_RETURN_NOT_SENT;
- }
+ if (!s->pha_enabled)
+ return EXT_RETURN_NOT_SENT;
/* construct extension - 0 length, no contents */
if (!WPACKET_put_bytes_u16(pkt, TLSEXT_TYPE_post_handshake_auth)
s->ext.early_data_ok = 0;
}
if (!s->hit) {
- /* If a new session then update it with the selected ALPN */
+ /*
+ * This is a new session and so alpn_selected should have been
+ * initialised to NULL. We should update it with the selected ALPN.
+ */
+ if (!ossl_assert(s->session->ext.alpn_selected == NULL)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PARSE_STOC_ALPN,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
s->session->ext.alpn_selected =
OPENSSL_memdup(s->s3->alpn_selected, s->s3->alpn_selected_len);
if (s->session->ext.alpn_selected == NULL) {
int tls_parse_stoc_ems(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
size_t chainidx)
{
+ if (s->options & SSL_OP_NO_EXTENDED_MASTER_SECRET)
+ return 1;
s->s3->flags |= TLS1_FLAGS_RECEIVED_EXTMS;
if (!s->hit)
s->session->flags |= SSL_SESS_FLAG_EXTMS;
return 0;
}
- /* TODO(TLS1.3): Remove this before release */
- if (version == TLS1_3_VERSION_DRAFT)
- version = TLS1_3_VERSION;
+ /*
+ * The only protocol version we support which is valid in this extension in
+ * a ServerHello is TLSv1.3 therefore we shouldn't be getting anything else.
+ */
+ if (version != TLS1_3_VERSION) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_TLS_PARSE_STOC_SUPPORTED_VERSIONS,
+ SSL_R_BAD_PROTOCOL_VERSION_NUMBER);
+ return 0;
+ }
/* We ignore this extension for HRRs except to sanity check it */
- if (context == SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST) {
- /*
- * The only protocol version we support which has an HRR message is
- * TLSv1.3, therefore we shouldn't be getting an HRR for anything else.
- */
- if (version != TLS1_3_VERSION) {
- SSLfatal(s, SSL_AD_PROTOCOL_VERSION,
- SSL_F_TLS_PARSE_STOC_SUPPORTED_VERSIONS,
- SSL_R_BAD_HRR_VERSION);
- return 0;
- }
+ if (context == SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST)
return 1;
- }
/* We just set it here. We validate it in ssl_choose_client_version */
s->version = version;
}
if (!s->ext.early_data_ok
- || !s->hit
- || s->session->ext.tick_identity != 0) {
+ || !s->hit) {
/*
* If we get here then we didn't send early data, or we didn't resume
* using the first identity, or the SNI/ALPN is not consistent so the
return 0;
}
- if (s->session->ext.tick_identity == (int)identity) {
+ if (identity >= (unsigned int)s->ext.tick_identity) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PARSE_STOC_PSK,
+ SSL_R_BAD_PSK_IDENTITY);
+ return 0;
+ }
+
+ /*
+ * Session resumption tickets are always sent before PSK tickets. If the
+ * ticket index is 0 then it must be for a session resumption ticket if we
+ * sent two tickets, or if we didn't send a PSK ticket.
+ */
+ if (identity == 0 && (s->psksession == NULL || s->ext.tick_identity == 2)) {
s->hit = 1;
SSL_SESSION_free(s->psksession);
s->psksession = NULL;
return 1;
}
- if (s->psksession == NULL
- || s->psksession->ext.tick_identity != (int)identity) {
- SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PARSE_STOC_PSK,
- SSL_R_BAD_PSK_IDENTITY);
+ if (s->psksession == NULL) {
+ /* Should never happen */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PARSE_STOC_PSK,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
s->session = s->psksession;
s->psksession = NULL;
s->hit = 1;
+ /* Early data is only allowed if we used the first ticket */
+ if (identity != 0)
+ s->ext.early_data_ok = 0;
#endif
return 1;
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