/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
+ * Copyright 2005 Nokia. 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
* https://www.openssl.org/source/license.html
*/
-/* ====================================================================
- * 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.
- *
- */
-/* ====================================================================
- * Copyright 2005 Nokia. All rights reserved.
- *
- * The portions of the attached software ("Contribution") is developed by
- * Nokia Corporation and is licensed pursuant to the OpenSSL open source
- * license.
- *
- * The Contribution, originally written by Mika Kousa and Pasi Eronen of
- * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
- * support (see RFC 4279) to OpenSSL.
- *
- * No patent licenses or other rights except those expressly stated in
- * the OpenSSL open source license shall be deemed granted or received
- * expressly, by implication, estoppel, or otherwise.
- *
- * No assurances are provided by Nokia that the Contribution does not
- * infringe the patent or other intellectual property rights of any third
- * party or that the license provides you with all the necessary rights
- * to make use of the Contribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
- * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
- * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
- * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
- * OTHERWISE.
- */
-
#include <stdio.h>
#include <time.h>
#include "../ssl_locl.h"
static ossl_inline int cert_req_allowed(SSL *s);
static int key_exchange_expected(SSL *s);
-static int ca_dn_cmp(const X509_NAME *const *a, const X509_NAME *const *b);
static int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
WPACKET *pkt);
{
OSSL_STATEM *st = &s->statem;
- /*
- * TODO(TLS1.3): This is still based on the TLSv1.2 state machine. Over time
- * we will update this to look more like real TLSv1.3
- */
-
/*
* Note: There is no case for TLS_ST_CW_CLNT_HELLO, because we haven't
* yet negotiated TLSv1.3 at that point so that is handled by
}
break;
+ case TLS_ST_EARLY_DATA:
+ /*
+ * We've not actually selected TLSv1.3 yet, but we have sent early
+ * data. The only thing allowed now is a ServerHello or a
+ * HelloRetryRequest.
+ */
+ if (mt == SSL3_MT_SERVER_HELLO) {
+ st->hand_state = TLS_ST_CR_SRVR_HELLO;
+ return 1;
+ }
+ if (mt == SSL3_MT_HELLO_RETRY_REQUEST) {
+ st->hand_state = TLS_ST_CR_HELLO_RETRY_REQUEST;
+ return 1;
+ }
+ break;
+
case TLS_ST_CR_SRVR_HELLO:
if (s->hit) {
if (s->ext.ticket_expected) {
err:
/* No valid transition found */
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL3_AD_UNEXPECTED_MESSAGE);
- SSLerr(SSL_F_OSSL_STATEM_CLIENT_READ_TRANSITION, SSL_R_UNEXPECTED_MESSAGE);
+ SSLfatal(s, SSL3_AD_UNEXPECTED_MESSAGE,
+ SSL_F_OSSL_STATEM_CLIENT_READ_TRANSITION,
+ SSL_R_UNEXPECTED_MESSAGE);
return 0;
}
switch (st->hand_state) {
default:
/* Shouldn't happen */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_OSSL_STATEM_CLIENT13_WRITE_TRANSITION,
+ ERR_R_INTERNAL_ERROR);
return WRITE_TRAN_ERROR;
- case TLS_ST_CW_CLNT_HELLO:
- /* We only hit this in the case of HelloRetryRequest */
- return WRITE_TRAN_FINISHED;
-
- case TLS_ST_CR_HELLO_RETRY_REQUEST:
- st->hand_state = TLS_ST_CW_CLNT_HELLO;
+ case TLS_ST_CR_FINISHED:
+ if (s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY
+ || s->early_data_state == SSL_EARLY_DATA_FINISHED_WRITING)
+ st->hand_state = TLS_ST_PENDING_EARLY_DATA_END;
+ else
+ st->hand_state = (s->s3->tmp.cert_req != 0) ? TLS_ST_CW_CERT
+ : TLS_ST_CW_FINISHED;
return WRITE_TRAN_CONTINUE;
- case TLS_ST_CR_FINISHED:
+ case TLS_ST_PENDING_EARLY_DATA_END:
+ if (s->ext.early_data == SSL_EARLY_DATA_ACCEPTED) {
+ st->hand_state = TLS_ST_CW_END_OF_EARLY_DATA;
+ return WRITE_TRAN_CONTINUE;
+ }
+ /* Fall through */
+
+ case TLS_ST_CW_END_OF_EARLY_DATA:
st->hand_state = (s->s3->tmp.cert_req != 0) ? TLS_ST_CW_CERT
: TLS_ST_CW_FINISHED;
return WRITE_TRAN_CONTINUE;
case TLS_ST_CR_SESSION_TICKET:
case TLS_ST_CW_FINISHED:
st->hand_state = TLS_ST_OK;
- ossl_statem_set_in_init(s, 0);
return WRITE_TRAN_CONTINUE;
case TLS_ST_OK:
switch (st->hand_state) {
default:
/* Shouldn't happen */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_OSSL_STATEM_CLIENT_WRITE_TRANSITION,
+ ERR_R_INTERNAL_ERROR);
return WRITE_TRAN_ERROR;
case TLS_ST_OK:
*/
return WRITE_TRAN_FINISHED;
}
- /* Renegotiation - fall through */
+ /* Renegotiation */
+ /* fall thru */
case TLS_ST_BEFORE:
st->hand_state = TLS_ST_CW_CLNT_HELLO;
return WRITE_TRAN_CONTINUE;
case TLS_ST_CW_CLNT_HELLO:
+ if (s->early_data_state == SSL_EARLY_DATA_CONNECTING) {
+ /*
+ * We are assuming this is a TLSv1.3 connection, although we haven't
+ * actually selected a version yet.
+ */
+ st->hand_state = TLS_ST_EARLY_DATA;
+ return WRITE_TRAN_CONTINUE;
+ }
/*
* No transition at the end of writing because we don't know what
* we will be sent
*/
return WRITE_TRAN_FINISHED;
+ case TLS_ST_CR_HELLO_RETRY_REQUEST:
+ st->hand_state = TLS_ST_CW_CLNT_HELLO;
+ return WRITE_TRAN_CONTINUE;
+
+ case TLS_ST_EARLY_DATA:
+ return WRITE_TRAN_FINISHED;
+
case DTLS_ST_CR_HELLO_VERIFY_REQUEST:
st->hand_state = TLS_ST_CW_CLNT_HELLO;
return WRITE_TRAN_CONTINUE;
case TLS_ST_CW_CHANGE:
#if defined(OPENSSL_NO_NEXTPROTONEG)
- st->hand_state = TLS_ST_CW_FINISHED;
+ st->
+ hand_state = TLS_ST_CW_FINISHED;
#else
if (!SSL_IS_DTLS(s) && s->s3->npn_seen)
st->hand_state = TLS_ST_CW_NEXT_PROTO;
case TLS_ST_CW_FINISHED:
if (s->hit) {
st->hand_state = TLS_ST_OK;
- ossl_statem_set_in_init(s, 0);
return WRITE_TRAN_CONTINUE;
} else {
return WRITE_TRAN_FINISHED;
return WRITE_TRAN_CONTINUE;
} else {
st->hand_state = TLS_ST_OK;
- ossl_statem_set_in_init(s, 0);
return WRITE_TRAN_CONTINUE;
}
*/
if (ssl3_renegotiate_check(s, 1)) {
if (!tls_setup_handshake(s)) {
- ossl_statem_set_error(s);
+ /* SSLfatal() already called */
return WRITE_TRAN_ERROR;
}
st->hand_state = TLS_ST_CW_CLNT_HELLO;
return WRITE_TRAN_CONTINUE;
}
st->hand_state = TLS_ST_OK;
- ossl_statem_set_in_init(s, 0);
return WRITE_TRAN_CONTINUE;
}
}
if (SSL_IS_DTLS(s)) {
/* every DTLS ClientHello resets Finished MAC */
if (!ssl3_init_finished_mac(s)) {
- ossl_statem_set_error(s);
+ /* SSLfatal() already called */
return WORK_ERROR;
}
}
st->use_timer = 0;
}
#ifndef OPENSSL_NO_SCTP
- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
+ if (BIO_dgram_is_sctp(SSL_get_wbio(s))) {
+ /* Calls SSLfatal() as required */
return dtls_wait_for_dry(s);
+ }
#endif
}
break;
+ case TLS_ST_PENDING_EARLY_DATA_END:
+ /*
+ * If we've been called by SSL_do_handshake()/SSL_write(), or we did not
+ * attempt to write early data before calling SSL_read() then we press
+ * on with the handshake. Otherwise we pause here.
+ */
+ if (s->early_data_state == SSL_EARLY_DATA_FINISHED_WRITING
+ || s->early_data_state == SSL_EARLY_DATA_NONE)
+ return WORK_FINISHED_CONTINUE;
+ /* Fall through */
+
+ case TLS_ST_EARLY_DATA:
case TLS_ST_OK:
+ /* Calls SSLfatal() as required */
return tls_finish_handshake(s, wst, 1);
}
/*
* Perform any work that needs to be done after sending a message from the
* client to the server.
- case TLS_ST_SR_CERT_VRFY:
- return SSL3_RT_MAX_PLAIN_LENGTH;
*/
WORK_STATE ossl_statem_client_post_work(SSL *s, WORK_STATE wst)
{
/* Treat the next message as the first packet */
s->first_packet = 1;
}
+
+ if (s->early_data_state == SSL_EARLY_DATA_CONNECTING
+ && s->max_early_data > 0) {
+ /*
+ * We haven't selected TLSv1.3 yet so we don't call the change
+ * cipher state function associated with the SSL_METHOD. Instead
+ * we call tls13_change_cipher_state() directly.
+ */
+ if (!tls13_change_cipher_state(s,
+ SSL3_CC_EARLY | SSL3_CHANGE_CIPHER_CLIENT_WRITE)) {
+ /* SSLfatal() already called */
+ return WORK_ERROR;
+ }
+ }
+ break;
+
+ case TLS_ST_CW_END_OF_EARLY_DATA:
+ /*
+ * We set the enc_write_ctx back to NULL because we may end up writing
+ * in cleartext again if we get a HelloRetryRequest from the server.
+ */
+ EVP_CIPHER_CTX_free(s->enc_write_ctx);
+ s->enc_write_ctx = NULL;
break;
case TLS_ST_CW_KEY_EXCH:
- if (tls_client_key_exchange_post_work(s) == 0)
+ if (tls_client_key_exchange_post_work(s) == 0) {
+ /* SSLfatal() already called */
return WORK_ERROR;
+ }
break;
case TLS_ST_CW_CHANGE:
else
s->session->compress_meth = s->s3->tmp.new_compression->id;
#endif
- if (!s->method->ssl3_enc->setup_key_block(s))
+ if (!s->method->ssl3_enc->setup_key_block(s)) {
+ /* SSLfatal() already called */
return WORK_ERROR;
+ }
if (!s->method->ssl3_enc->change_cipher_state(s,
- SSL3_CHANGE_CIPHER_CLIENT_WRITE))
+ SSL3_CHANGE_CIPHER_CLIENT_WRITE)) {
+ /* SSLfatal() already called */
return WORK_ERROR;
+ }
if (SSL_IS_DTLS(s)) {
#ifndef OPENSSL_NO_SCTP
if (SSL_IS_TLS13(s)) {
if (!s->method->ssl3_enc->change_cipher_state(s,
- SSL3_CC_APPLICATION | SSL3_CHANGE_CIPHER_CLIENT_WRITE))
- return WORK_ERROR;
+ SSL3_CC_APPLICATION | SSL3_CHANGE_CIPHER_CLIENT_WRITE)) {
+ /* SSLfatal() already called */
+ return WORK_ERROR;
+ }
}
break;
case TLS_ST_CW_KEY_UPDATE:
if (statem_flush(s) != 1)
return WORK_MORE_A;
-
- if (!tls13_update_key(s, 1))
+ if (!tls13_update_key(s, 1)) {
+ /* SSLfatal() already called */
return WORK_ERROR;
+ }
break;
}
switch (st->hand_state) {
default:
/* Shouldn't happen */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_OSSL_STATEM_CLIENT_CONSTRUCT_MESSAGE,
+ SSL_R_BAD_HANDSHAKE_STATE);
return 0;
case TLS_ST_CW_CHANGE:
*mt = SSL3_MT_CLIENT_HELLO;
break;
+ case TLS_ST_CW_END_OF_EARLY_DATA:
+ *confunc = tls_construct_end_of_early_data;
+ *mt = SSL3_MT_END_OF_EARLY_DATA;
+ break;
+
+ case TLS_ST_PENDING_EARLY_DATA_END:
+ *confunc = NULL;
+ *mt = SSL3_MT_DUMMY;
+ break;
+
case TLS_ST_CW_CERT:
*confunc = tls_construct_client_certificate;
*mt = SSL3_MT_CERTIFICATE;
switch (st->hand_state) {
default:
/* Shouldn't happen */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_OSSL_STATEM_CLIENT_PROCESS_MESSAGE,
+ ERR_R_INTERNAL_ERROR);
return MSG_PROCESS_ERROR;
case TLS_ST_CR_SRVR_HELLO:
switch (st->hand_state) {
default:
/* Shouldn't happen */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_OSSL_STATEM_CLIENT_POST_PROCESS_MESSAGE,
+ ERR_R_INTERNAL_ERROR);
return WORK_ERROR;
case TLS_ST_CR_CERT_REQ:
return tls_prepare_client_certificate(s, wst);
-
-#ifndef OPENSSL_NO_SCTP
- case TLS_ST_CR_SRVR_DONE:
- /* We only get here if we are using SCTP and we are renegotiating */
- if (BIO_dgram_sctp_msg_waiting(SSL_get_rbio(s))) {
- s->s3->in_read_app_data = 2;
- s->rwstate = SSL_READING;
- BIO_clear_retry_flags(SSL_get_rbio(s));
- BIO_set_retry_read(SSL_get_rbio(s));
- ossl_statem_set_sctp_read_sock(s, 1);
- return WORK_MORE_A;
- }
- ossl_statem_set_sctp_read_sock(s, 0);
- return WORK_FINISHED_STOP;
-#endif
}
}
unsigned char *p;
size_t sess_id_len;
int i, protverr;
- int al = SSL_AD_HANDSHAKE_FAILURE;
#ifndef OPENSSL_NO_COMP
SSL_COMP *comp;
#endif
SSL_SESSION *sess = s->session;
+ unsigned char *session_id;
if (!WPACKET_set_max_size(pkt, SSL3_RT_MAX_PLAIN_LENGTH)) {
/* Should not happen */
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
return 0;
}
/* Work out what SSL/TLS/DTLS version to use */
protverr = ssl_set_client_hello_version(s);
if (protverr != 0) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, protverr);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ protverr);
return 0;
}
- if ((sess == NULL) || !ssl_version_supported(s, sess->ssl_version) ||
- /*
- * In the case of EAP-FAST, we can have a pre-shared
- * "ticket" without a session ID.
- */
- (!sess->session_id_length && !sess->ext.tick) ||
- (sess->not_resumable)) {
- if (!ssl_get_new_session(s, 0))
+ if (sess == NULL
+ || !ssl_version_supported(s, sess->ssl_version)
+ || !SSL_SESSION_is_resumable(sess)) {
+ if (!s->hello_retry_request && !ssl_get_new_session(s, 0)) {
+ /* SSLfatal() already called */
return 0;
+ }
}
/* else use the pre-loaded session */
- /* This is a real handshake so make sure we clean it up at the end */
- s->statem.cleanuphand = 1;
-
p = s->s3->client_random;
/*
break;
}
}
- } else
- i = 1;
+ } else {
+ i = s->hello_retry_request == 0;
+ }
- if (i && ssl_fill_hello_random(s, 0, p, sizeof(s->s3->client_random)) <= 0)
+ if (i && ssl_fill_hello_random(s, 0, p, sizeof(s->s3->client_random),
+ DOWNGRADE_NONE) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
+ }
/*-
* version indicates the negotiated version: for example from
*/
if (!WPACKET_put_bytes_u16(pkt, s->client_version)
|| !WPACKET_memcpy(pkt, s->s3->client_random, SSL3_RANDOM_SIZE)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
/* Session ID */
- if (s->new_session || s->session->ssl_version == TLS1_3_VERSION)
- sess_id_len = 0;
- else
+ session_id = s->session->session_id;
+ if (s->new_session || s->session->ssl_version == TLS1_3_VERSION) {
+ if (s->version == TLS1_3_VERSION
+ && (s->options & SSL_OP_ENABLE_MIDDLEBOX_COMPAT) != 0) {
+ sess_id_len = sizeof(s->tmp_session_id);
+ s->tmp_session_id_len = sess_id_len;
+ session_id = s->tmp_session_id;
+ if (!s->hello_retry_request
+ && ssl_randbytes(s, s->tmp_session_id,
+ sess_id_len) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+ } else {
+ sess_id_len = 0;
+ }
+ } else {
sess_id_len = s->session->session_id_length;
+ if (s->version == TLS1_3_VERSION) {
+ s->tmp_session_id_len = sess_id_len;
+ memcpy(s->tmp_session_id, s->session->session_id, sess_id_len);
+ }
+ }
if (sess_id_len > sizeof(s->session->session_id)
|| !WPACKET_start_sub_packet_u8(pkt)
- || (sess_id_len != 0 && !WPACKET_memcpy(pkt, s->session->session_id,
+ || (sess_id_len != 0 && !WPACKET_memcpy(pkt, session_id,
sess_id_len))
|| !WPACKET_close(pkt)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
if (s->d1->cookie_len > sizeof(s->d1->cookie)
|| !WPACKET_sub_memcpy_u8(pkt, s->d1->cookie,
s->d1->cookie_len)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
}
/* Ciphers supported */
if (!WPACKET_start_sub_packet_u16(pkt)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
- /* ssl_cipher_list_to_bytes() raises SSLerr if appropriate */
- if (!ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), pkt))
+
+ if (!ssl_cipher_list_to_bytes(s, SSL_get_ciphers(s), pkt)) {
+ /* SSLfatal() already called */
return 0;
+ }
if (!WPACKET_close(pkt)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
/* COMPRESSION */
if (!WPACKET_start_sub_packet_u8(pkt)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
#ifndef OPENSSL_NO_COMP
- if (ssl_allow_compression(s) && s->ctx->comp_methods) {
+ if (ssl_allow_compression(s)
+ && s->ctx->comp_methods
+ && (SSL_IS_DTLS(s) || s->s3->tmp.max_ver < TLS1_3_VERSION)) {
int compnum = sk_SSL_COMP_num(s->ctx->comp_methods);
for (i = 0; i < compnum; i++) {
comp = sk_SSL_COMP_value(s->ctx->comp_methods, i);
if (!WPACKET_put_bytes_u8(pkt, comp->id)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
}
#endif
/* Add the NULL method */
if (!WPACKET_put_bytes_u8(pkt, 0) || !WPACKET_close(pkt)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CLIENT_HELLO,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
/* TLS extensions */
- if (!tls_construct_extensions(s, pkt, EXT_CLIENT_HELLO, NULL, 0, &al)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ if (!tls_construct_extensions(s, pkt, SSL_EXT_CLIENT_HELLO, NULL, 0)) {
+ /* SSLfatal() already called */
return 0;
}
MSG_PROCESS_RETURN dtls_process_hello_verify(SSL *s, PACKET *pkt)
{
- int al;
size_t cookie_len;
PACKET cookiepkt;
if (!PACKET_forward(pkt, 2)
|| !PACKET_get_length_prefixed_1(pkt, &cookiepkt)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_DTLS_PROCESS_HELLO_VERIFY, SSL_R_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_DTLS_PROCESS_HELLO_VERIFY,
+ SSL_R_LENGTH_MISMATCH);
+ return MSG_PROCESS_ERROR;
}
cookie_len = PACKET_remaining(&cookiepkt);
if (cookie_len > sizeof(s->d1->cookie)) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_DTLS_PROCESS_HELLO_VERIFY, SSL_R_LENGTH_TOO_LONG);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_DTLS_PROCESS_HELLO_VERIFY,
+ SSL_R_LENGTH_TOO_LONG);
+ return MSG_PROCESS_ERROR;
}
if (!PACKET_copy_bytes(&cookiepkt, s->d1->cookie, cookie_len)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_DTLS_PROCESS_HELLO_VERIFY, SSL_R_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_DTLS_PROCESS_HELLO_VERIFY,
+ SSL_R_LENGTH_MISMATCH);
+ return MSG_PROCESS_ERROR;
}
s->d1->cookie_len = cookie_len;
return MSG_PROCESS_FINISHED_READING;
- f_err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
- return MSG_PROCESS_ERROR;
}
-MSG_PROCESS_RETURN tls_process_server_hello(SSL *s, PACKET *pkt)
+static int set_client_ciphersuite(SSL *s, const unsigned char *cipherchars)
{
STACK_OF(SSL_CIPHER) *sk;
const SSL_CIPHER *c;
+ int i;
+
+ c = ssl_get_cipher_by_char(s, cipherchars, 0);
+ if (c == NULL) {
+ /* unknown cipher */
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SET_CLIENT_CIPHERSUITE,
+ SSL_R_UNKNOWN_CIPHER_RETURNED);
+ return 0;
+ }
+ /*
+ * If it is a disabled cipher we either didn't send it in client hello,
+ * or it's not allowed for the selected protocol. So we return an error.
+ */
+ if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_CHECK, 1)) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SET_CLIENT_CIPHERSUITE,
+ SSL_R_WRONG_CIPHER_RETURNED);
+ return 0;
+ }
+
+ sk = ssl_get_ciphers_by_id(s);
+ i = sk_SSL_CIPHER_find(sk, c);
+ if (i < 0) {
+ /* we did not say we would use this cipher */
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SET_CLIENT_CIPHERSUITE,
+ SSL_R_WRONG_CIPHER_RETURNED);
+ return 0;
+ }
+
+ if (SSL_IS_TLS13(s) && s->s3->tmp.new_cipher != NULL
+ && s->s3->tmp.new_cipher->id != c->id) {
+ /* ServerHello selected a different ciphersuite to that in the HRR */
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SET_CLIENT_CIPHERSUITE,
+ SSL_R_WRONG_CIPHER_RETURNED);
+ return 0;
+ }
+
+ /*
+ * Depending on the session caching (internal/external), the cipher
+ * and/or cipher_id values may not be set. Make sure that cipher_id is
+ * set and use it for comparison.
+ */
+ if (s->session->cipher != NULL)
+ s->session->cipher_id = s->session->cipher->id;
+ if (s->hit && (s->session->cipher_id != c->id)) {
+ if (SSL_IS_TLS13(s)) {
+ /*
+ * In TLSv1.3 it is valid for the server to select a different
+ * ciphersuite as long as the hash is the same.
+ */
+ if (ssl_md(c->algorithm2)
+ != ssl_md(s->session->cipher->algorithm2)) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_SET_CLIENT_CIPHERSUITE,
+ SSL_R_CIPHERSUITE_DIGEST_HAS_CHANGED);
+ return 0;
+ }
+ } else {
+ /*
+ * Prior to TLSv1.3 resuming a session always meant using the same
+ * ciphersuite.
+ */
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SET_CLIENT_CIPHERSUITE,
+ SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
+ return 0;
+ }
+ }
+ s->s3->tmp.new_cipher = c;
+
+ return 1;
+}
+
+MSG_PROCESS_RETURN tls_process_server_hello(SSL *s, PACKET *pkt)
+{
PACKET session_id, extpkt;
size_t session_id_len;
const unsigned char *cipherchars;
- int i, al = SSL_AD_INTERNAL_ERROR;
unsigned int compression;
unsigned int sversion;
unsigned int context;
- int protverr;
+ int discard;
RAW_EXTENSION *extensions = NULL;
#ifndef OPENSSL_NO_COMP
SSL_COMP *comp;
#endif
if (!PACKET_get_net_2(pkt, &sversion)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_LENGTH_MISMATCH);
- goto f_err;
- }
-
- /* We do this immediately so we know what format the ServerHello is in */
- protverr = ssl_choose_client_version(s, sversion);
- if (protverr != 0) {
- al = SSL_AD_PROTOCOL_VERSION;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, protverr);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
}
- /* load the server hello data */
/* load the server random */
if (!PACKET_copy_bytes(pkt, s->s3->server_random, SSL3_RANDOM_SIZE)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
}
/* Get the session-id. */
- if (!SSL_IS_TLS13(s)) {
- if (!PACKET_get_length_prefixed_1(pkt, &session_id)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_LENGTH_MISMATCH);
- goto f_err;
- }
- session_id_len = PACKET_remaining(&session_id);
- if (session_id_len > sizeof s->session->session_id
- || session_id_len > SSL3_SESSION_ID_SIZE) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO,
- SSL_R_SSL3_SESSION_ID_TOO_LONG);
- goto f_err;
- }
- } else {
- PACKET_null_init(&session_id);
- session_id_len = 0;
+ if (!PACKET_get_length_prefixed_1(pkt, &session_id)) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
+ }
+ session_id_len = PACKET_remaining(&session_id);
+ if (session_id_len > sizeof(s->session->session_id)
+ || session_id_len > SSL3_SESSION_ID_SIZE) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_SSL3_SESSION_ID_TOO_LONG);
+ goto err;
}
if (!PACKET_get_bytes(pkt, &cipherchars, TLS_CIPHER_LEN)) {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_LENGTH_MISMATCH);
- al = SSL_AD_DECODE_ERROR;
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
}
- if (!SSL_IS_TLS13(s)) {
- if (!PACKET_get_1(pkt, &compression)) {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_LENGTH_MISMATCH);
- al = SSL_AD_DECODE_ERROR;
- goto f_err;
- }
- } else {
- compression = 0;
+ if (!PACKET_get_1(pkt, &compression)) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
}
/* TLS extensions */
if (PACKET_remaining(pkt) == 0) {
PACKET_null_init(&extpkt);
- } else if (!PACKET_as_length_prefixed_2(pkt, &extpkt)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_BAD_LENGTH);
- goto f_err;
+ } else if (!PACKET_as_length_prefixed_2(pkt, &extpkt)
+ || PACKET_remaining(pkt) != 0) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_BAD_LENGTH);
+ goto err;
}
- context = SSL_IS_TLS13(s) ? EXT_TLS1_3_SERVER_HELLO
- : EXT_TLS1_2_SERVER_HELLO;
- if (!tls_collect_extensions(s, &extpkt, context, &extensions, &al))
- goto f_err;
+ if (!tls_collect_extensions(s, &extpkt,
+ SSL_EXT_TLS1_2_SERVER_HELLO
+ | SSL_EXT_TLS1_3_SERVER_HELLO,
+ &extensions, NULL, 1)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
+
+ if (!ssl_choose_client_version(s, sversion, extensions)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
+
+ /*
+ * Now we have chosen the version we need to check again that the extensions
+ * are appropriate for this version.
+ */
+ context = SSL_IS_TLS13(s) ? SSL_EXT_TLS1_3_SERVER_HELLO
+ : SSL_EXT_TLS1_2_SERVER_HELLO;
+ if (!tls_validate_all_contexts(s, context, extensions)) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_BAD_EXTENSION);
+ goto err;
+ }
s->hit = 0;
if (SSL_IS_TLS13(s)) {
+ /*
+ * In TLSv1.3 a ServerHello message signals a key change so the end of
+ * the message must be on a record boundary.
+ */
+ if (RECORD_LAYER_processed_read_pending(&s->rlayer)) {
+ SSLfatal(s, SSL_AD_UNEXPECTED_MESSAGE,
+ SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_NOT_ON_RECORD_BOUNDARY);
+ goto err;
+ }
+
+ if (compression != 0) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_INVALID_COMPRESSION_ALGORITHM);
+ goto err;
+ }
+
+ if (session_id_len != s->tmp_session_id_len
+ || memcmp(PACKET_data(&session_id), s->tmp_session_id,
+ session_id_len) != 0) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_INVALID_SESSION_ID);
+ goto err;
+ }
+
/* This will set s->hit if we are resuming */
if (!tls_parse_extension(s, TLSEXT_IDX_psk,
- EXT_TLS1_3_SERVER_HELLO,
- extensions, NULL, 0, &al))
- goto f_err;
+ SSL_EXT_TLS1_3_SERVER_HELLO,
+ extensions, NULL, 0)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
} else {
/*
* Check if we can resume the session based on external pre-shared
&& master_key_length > 0) {
s->session->master_key_length = master_key_length;
s->session->cipher = pref_cipher ?
- pref_cipher : ssl_get_cipher_by_char(s, cipherchars);
+ pref_cipher : ssl_get_cipher_by_char(s, cipherchars, 0);
} else {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
- al = SSL_AD_INTERNAL_ERROR;
- goto f_err;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
+ goto err;
}
}
if (s->sid_ctx_length != s->session->sid_ctx_length
|| memcmp(s->session->sid_ctx, s->sid_ctx, s->sid_ctx_length)) {
/* actually a client application bug */
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO,
- SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
+ goto err;
}
} else {
/*
|| (SSL_IS_TLS13(s)
&& s->session->ext.tick_identity
!= TLSEXT_PSK_BAD_IDENTITY)) {
- s->ctx->stats.sess_miss++;
+ CRYPTO_atomic_add(&s->session_ctx->stats.sess_miss, 1, &discard,
+ s->session_ctx->lock);
if (!ssl_get_new_session(s, 0)) {
- goto f_err;
+ /* SSLfatal() already called */
+ goto err;
}
}
s->session->ssl_version = s->version;
- s->session->session_id_length = session_id_len;
- /* session_id_len could be 0 */
- if (session_id_len > 0)
- memcpy(s->session->session_id, PACKET_data(&session_id),
- session_id_len);
+ /*
+ * In TLSv1.2 and below we save the session id we were sent so we can
+ * resume it later. In TLSv1.3 the session id we were sent is just an
+ * echo of what we originally sent in the ClientHello and should not be
+ * used for resumption.
+ */
+ if (!SSL_IS_TLS13(s)) {
+ s->session->session_id_length = session_id_len;
+ /* session_id_len could be 0 */
+ if (session_id_len > 0)
+ memcpy(s->session->session_id, PACKET_data(&session_id),
+ session_id_len);
+ }
}
/* Session version and negotiated protocol version should match */
if (s->version != s->session->ssl_version) {
- al = SSL_AD_PROTOCOL_VERSION;
-
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO,
- SSL_R_SSL_SESSION_VERSION_MISMATCH);
- goto f_err;
- }
-
- c = ssl_get_cipher_by_char(s, cipherchars);
- if (c == NULL) {
- /* unknown cipher */
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_UNKNOWN_CIPHER_RETURNED);
- goto f_err;
+ SSLfatal(s, SSL_AD_PROTOCOL_VERSION, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_SSL_SESSION_VERSION_MISMATCH);
+ goto err;
}
/*
* Now that we know the version, update the check to see if it's an allowed
*/
s->s3->tmp.min_ver = s->version;
s->s3->tmp.max_ver = s->version;
- /*
- * If it is a disabled cipher we either didn't send it in client hello,
- * or it's not allowed for the selected protocol. So we return an error.
- */
- if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_CHECK)) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_WRONG_CIPHER_RETURNED);
- goto f_err;
- }
-
- sk = ssl_get_ciphers_by_id(s);
- i = sk_SSL_CIPHER_find(sk, c);
- if (i < 0) {
- /* we did not say we would use this cipher */
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_WRONG_CIPHER_RETURNED);
- goto f_err;
- }
- /*
- * Depending on the session caching (internal/external), the cipher
- * and/or cipher_id values may not be set. Make sure that cipher_id is
- * set and use it for comparison.
- */
- if (s->session->cipher)
- s->session->cipher_id = s->session->cipher->id;
- if (s->hit && (s->session->cipher_id != c->id)) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO,
- SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
- goto f_err;
+ if (!set_client_ciphersuite(s, cipherchars)) {
+ /* SSLfatal() already called */
+ goto err;
}
- s->s3->tmp.new_cipher = c;
#ifdef OPENSSL_NO_COMP
if (compression != 0) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO,
- SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
+ goto err;
}
/*
* If compression is disabled we'd better not try to resume a session
* using compression.
*/
if (s->session->compress_meth != 0) {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_INCONSISTENT_COMPRESSION);
- goto f_err;
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_INCONSISTENT_COMPRESSION);
+ goto err;
}
#else
if (s->hit && compression != s->session->compress_meth) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO,
- SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_OLD_SESSION_COMPRESSION_ALGORITHM_NOT_RETURNED);
+ goto err;
}
if (compression == 0)
comp = NULL;
else if (!ssl_allow_compression(s)) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_COMPRESSION_DISABLED);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_COMPRESSION_DISABLED);
+ goto err;
} else {
comp = ssl3_comp_find(s->ctx->comp_methods, compression);
}
if (compression != 0 && comp == NULL) {
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO,
- SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
+ goto err;
} else {
s->s3->tmp.new_compression = comp;
}
#endif
- if (!tls_parse_all_extensions(s, context, extensions, NULL, 0, &al))
- goto f_err;
+ if (!tls_parse_all_extensions(s, context, extensions, NULL, 0, 1)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
#ifndef OPENSSL_NO_SCTP
if (SSL_IS_DTLS(s) && s->hit) {
if (SSL_export_keying_material(s, sctpauthkey,
sizeof(sctpauthkey),
labelbuffer,
- sizeof(labelbuffer), NULL, 0, 0) <= 0)
- goto f_err;
+ sizeof(labelbuffer), NULL, 0, 0) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SERVER_HELLO,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
BIO_ctrl(SSL_get_wbio(s),
BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
*/
if (SSL_IS_TLS13(s)
&& (!s->method->ssl3_enc->setup_key_block(s)
- || !s->method->ssl3_enc->change_cipher_state(s,
- SSL3_CC_HANDSHAKE | SSL3_CHANGE_CIPHER_CLIENT_WRITE)
|| !s->method->ssl3_enc->change_cipher_state(s,
SSL3_CC_HANDSHAKE | SSL3_CHANGE_CIPHER_CLIENT_READ))) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_HELLO, SSL_R_CANNOT_CHANGE_CIPHER);
- goto f_err;
+ /* SSLfatal() already called */
+ goto err;
}
OPENSSL_free(extensions);
return MSG_PROCESS_CONTINUE_READING;
- f_err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
+ err:
OPENSSL_free(extensions);
return MSG_PROCESS_ERROR;
}
static MSG_PROCESS_RETURN tls_process_hello_retry_request(SSL *s, PACKET *pkt)
{
unsigned int sversion;
- int errorcode;
+ const unsigned char *cipherchars;
RAW_EXTENSION *extensions = NULL;
- int al;
PACKET extpkt;
if (!PACKET_get_net_2(pkt, &sversion)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST, SSL_R_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
+ }
+
+ /* TODO(TLS1.3): Remove the TLS1_3_VERSION_DRAFT clause before release */
+ if (sversion != TLS1_3_VERSION && sversion != TLS1_3_VERSION_DRAFT) {
+ SSLfatal(s, SSL_AD_PROTOCOL_VERSION,
+ SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST,
+ SSL_R_WRONG_SSL_VERSION);
+ goto err;
}
s->hello_retry_request = 1;
- /* This will fail if it doesn't choose TLSv1.3+ */
- errorcode = ssl_choose_client_version(s, sversion);
- if (errorcode != 0) {
- al = SSL_AD_PROTOCOL_VERSION;
- SSLerr(SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST, errorcode);
- goto f_err;
+ /*
+ * If we were sending early_data then the enc_write_ctx is now invalid and
+ * should not be used.
+ */
+ EVP_CIPHER_CTX_free(s->enc_write_ctx);
+ s->enc_write_ctx = NULL;
+
+ if (!PACKET_get_bytes(pkt, &cipherchars, TLS_CIPHER_LEN)) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
+ }
+
+ if (!set_client_ciphersuite(s, cipherchars)) {
+ /* SSLfatal() already called */
+ goto err;
}
- if (!PACKET_as_length_prefixed_2(pkt, &extpkt)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST, SSL_R_BAD_LENGTH);
- goto f_err;
+ if (!PACKET_as_length_prefixed_2(pkt, &extpkt)
+ /* Must have a non-empty extensions block */
+ || PACKET_remaining(&extpkt) == 0
+ /* Must be no trailing data after extensions */
+ || PACKET_remaining(pkt) != 0) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST,
+ SSL_R_BAD_LENGTH);
+ goto err;
}
- if (!tls_collect_extensions(s, &extpkt, EXT_TLS1_3_HELLO_RETRY_REQUEST,
- &extensions, &al)
- || !tls_parse_all_extensions(s, EXT_TLS1_3_HELLO_RETRY_REQUEST,
- extensions, NULL, 0, &al))
- goto f_err;
+ if (!tls_collect_extensions(s, &extpkt, SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST,
+ &extensions, NULL, 1)
+ || !tls_parse_all_extensions(s, SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST,
+ extensions, NULL, 0, 1)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
OPENSSL_free(extensions);
+ extensions = NULL;
+
+ if (s->ext.tls13_cookie_len == 0
+#if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
+ && s->s3->tmp.pkey != NULL
+#endif
+ ) {
+ /*
+ * We didn't receive a cookie or a new key_share so the next
+ * ClientHello will not change
+ */
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_TLS_PROCESS_HELLO_RETRY_REQUEST,
+ SSL_R_NO_CHANGE_FOLLOWING_HRR);
+ goto err;
+ }
+
+ /*
+ * Re-initialise the Transcript Hash. We're going to prepopulate it with
+ * a synthetic message_hash in place of ClientHello1.
+ */
+ if (!create_synthetic_message_hash(s)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
+
+ /*
+ * Add this message to the Transcript Hash. Normally this is done
+ * automatically prior to the message processing stage. However due to the
+ * need to create the synthetic message hash, we defer that step until now
+ * for HRR messages.
+ */
+ if (!ssl3_finish_mac(s, (unsigned char *)s->init_buf->data,
+ s->init_num + SSL3_HM_HEADER_LENGTH)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
return MSG_PROCESS_FINISHED_READING;
- f_err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
+ err:
OPENSSL_free(extensions);
return MSG_PROCESS_ERROR;
}
MSG_PROCESS_RETURN tls_process_server_certificate(SSL *s, PACKET *pkt)
{
- int al, i, ret = MSG_PROCESS_ERROR, exp_idx;
+ int i;
+ MSG_PROCESS_RETURN ret = MSG_PROCESS_ERROR;
unsigned long cert_list_len, cert_len;
X509 *x = NULL;
const unsigned char *certstart, *certbytes;
STACK_OF(X509) *sk = NULL;
EVP_PKEY *pkey = NULL;
- size_t chainidx;
+ size_t chainidx, certidx;
unsigned int context = 0;
+ const SSL_CERT_LOOKUP *clu;
if ((sk = sk_X509_new_null()) == NULL) {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
if ((SSL_IS_TLS13(s) && !PACKET_get_1(pkt, &context))
|| context != 0
|| !PACKET_get_net_3(pkt, &cert_list_len)
- || PACKET_remaining(pkt) != cert_list_len) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, SSL_R_LENGTH_MISMATCH);
- goto f_err;
+ || PACKET_remaining(pkt) != cert_list_len
+ || PACKET_remaining(pkt) == 0) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
}
for (chainidx = 0; PACKET_remaining(pkt); chainidx++) {
if (!PACKET_get_net_3(pkt, &cert_len)
|| !PACKET_get_bytes(pkt, &certbytes, cert_len)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
- SSL_R_CERT_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_CERT_LENGTH_MISMATCH);
+ goto err;
}
certstart = certbytes;
x = d2i_X509(NULL, (const unsigned char **)&certbytes, cert_len);
if (x == NULL) {
- al = SSL_AD_BAD_CERTIFICATE;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, ERR_R_ASN1_LIB);
- goto f_err;
+ SSLfatal(s, SSL_AD_BAD_CERTIFICATE,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, ERR_R_ASN1_LIB);
+ goto err;
}
if (certbytes != (certstart + cert_len)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
- SSL_R_CERT_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_CERT_LENGTH_MISMATCH);
+ goto err;
}
if (SSL_IS_TLS13(s)) {
PACKET extensions;
if (!PACKET_get_length_prefixed_2(pkt, &extensions)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, SSL_R_BAD_LENGTH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_BAD_LENGTH);
+ goto err;
}
- if (!tls_collect_extensions(s, &extensions, EXT_TLS1_3_CERTIFICATE,
- &rawexts, &al)
- || !tls_parse_all_extensions(s, EXT_TLS1_3_CERTIFICATE,
- rawexts, x, chainidx, &al)) {
+ if (!tls_collect_extensions(s, &extensions,
+ SSL_EXT_TLS1_3_CERTIFICATE, &rawexts,
+ NULL, chainidx == 0)
+ || !tls_parse_all_extensions(s, SSL_EXT_TLS1_3_CERTIFICATE,
+ rawexts, x, chainidx,
+ PACKET_remaining(pkt) == 0)) {
OPENSSL_free(rawexts);
- goto f_err;
+ /* SSLfatal already called */
+ goto err;
}
OPENSSL_free(rawexts);
}
if (!sk_X509_push(sk, x)) {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
x = NULL;
* set. The *documented* interface remains the same.
*/
if (s->verify_mode != SSL_VERIFY_NONE && i <= 0) {
- al = ssl_verify_alarm_type(s->verify_result);
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
- SSL_R_CERTIFICATE_VERIFY_FAILED);
- goto f_err;
+ SSLfatal(s, ssl_verify_alarm_type(s->verify_result),
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_CERTIFICATE_VERIFY_FAILED);
+ goto err;
}
ERR_clear_error(); /* but we keep s->verify_result */
if (i > 1) {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, i);
- al = SSL_AD_HANDSHAKE_FAILURE;
- goto f_err;
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, i);
+ goto err;
}
s->session->peer_chain = sk;
*/
x = sk_X509_value(sk, 0);
sk = NULL;
- /*
- * VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end
- */
pkey = X509_get0_pubkey(x);
if (pkey == NULL || EVP_PKEY_missing_parameters(pkey)) {
x = NULL;
- al = SSL3_AL_FATAL;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
- SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
- goto f_err;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
+ goto err;
}
- i = ssl_cert_type(x, pkey);
- if (i < 0) {
+ if ((clu = ssl_cert_lookup_by_pkey(pkey, &certidx)) == NULL) {
x = NULL;
- al = SSL3_AL_FATAL;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
- SSL_R_UNKNOWN_CERTIFICATE_TYPE);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_UNKNOWN_CERTIFICATE_TYPE);
+ goto err;
}
/*
* Check certificate type is consistent with ciphersuite. For TLS 1.3
* type.
*/
if (!SSL_IS_TLS13(s)) {
- exp_idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher);
- if (exp_idx >= 0 && i != exp_idx
- && (exp_idx != SSL_PKEY_GOST_EC ||
- (i != SSL_PKEY_GOST12_512 && i != SSL_PKEY_GOST12_256
- && i != SSL_PKEY_GOST01))) {
+ if ((clu->amask & s->s3->tmp.new_cipher->algorithm_auth) == 0) {
x = NULL;
- al = SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
- SSL_R_WRONG_CERTIFICATE_TYPE);
- goto f_err;
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
+ SSL_F_TLS_PROCESS_SERVER_CERTIFICATE,
+ SSL_R_WRONG_CERTIFICATE_TYPE);
+ goto err;
}
}
- s->session->peer_type = i;
+ s->session->peer_type = certidx;
X509_free(s->session->peer);
X509_up_ref(x);
&& !ssl_handshake_hash(s, s->cert_verify_hash,
sizeof(s->cert_verify_hash),
&s->cert_verify_hash_len)) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_CERTIFICATE, ERR_R_INTERNAL_ERROR);
- goto f_err;
+ /* SSLfatal() already called */;
+ goto err;
}
ret = MSG_PROCESS_CONTINUE_READING;
- goto done;
- f_err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
- ossl_statem_set_error(s);
- done:
X509_free(x);
sk_X509_pop_free(sk, X509_free);
return ret;
}
-static int tls_process_ske_psk_preamble(SSL *s, PACKET *pkt, int *al)
+static int tls_process_ske_psk_preamble(SSL *s, PACKET *pkt)
{
#ifndef OPENSSL_NO_PSK
PACKET psk_identity_hint;
/* PSK ciphersuites are preceded by an identity hint */
if (!PACKET_get_length_prefixed_2(pkt, &psk_identity_hint)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_PSK_PREAMBLE, SSL_R_LENGTH_MISMATCH);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SKE_PSK_PREAMBLE,
+ SSL_R_LENGTH_MISMATCH);
return 0;
}
* identity.
*/
if (PACKET_remaining(&psk_identity_hint) > PSK_MAX_IDENTITY_LEN) {
- *al = SSL_AD_HANDSHAKE_FAILURE;
- SSLerr(SSL_F_TLS_PROCESS_SKE_PSK_PREAMBLE, SSL_R_DATA_LENGTH_TOO_LONG);
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
+ SSL_F_TLS_PROCESS_SKE_PSK_PREAMBLE,
+ SSL_R_DATA_LENGTH_TOO_LONG);
return 0;
}
s->session->psk_identity_hint = NULL;
} else if (!PACKET_strndup(&psk_identity_hint,
&s->session->psk_identity_hint)) {
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_PSK_PREAMBLE,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
return 1;
#else
- SSLerr(SSL_F_TLS_PROCESS_SKE_PSK_PREAMBLE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_PSK_PREAMBLE,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
-static int tls_process_ske_srp(SSL *s, PACKET *pkt, EVP_PKEY **pkey, int *al)
+static int tls_process_ske_srp(SSL *s, PACKET *pkt, EVP_PKEY **pkey)
{
#ifndef OPENSSL_NO_SRP
PACKET prime, generator, salt, server_pub;
|| !PACKET_get_length_prefixed_2(pkt, &generator)
|| !PACKET_get_length_prefixed_1(pkt, &salt)
|| !PACKET_get_length_prefixed_2(pkt, &server_pub)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, SSL_R_LENGTH_MISMATCH);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SKE_SRP,
+ SSL_R_LENGTH_MISMATCH);
return 0;
}
|| (s->srp_ctx.B =
BN_bin2bn(PACKET_data(&server_pub),
(int)PACKET_remaining(&server_pub), NULL)) == NULL) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, ERR_R_BN_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_SRP,
+ ERR_R_BN_LIB);
return 0;
}
- if (!srp_verify_server_param(s, al)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, SSL_R_BAD_SRP_PARAMETERS);
+ if (!srp_verify_server_param(s)) {
+ /* SSLfatal() already called */
return 0;
}
return 1;
#else
- SSLerr(SSL_F_TLS_PROCESS_SKE_SRP, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_SRP,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
-static int tls_process_ske_dhe(SSL *s, PACKET *pkt, EVP_PKEY **pkey, int *al)
+static int tls_process_ske_dhe(SSL *s, PACKET *pkt, EVP_PKEY **pkey)
{
#ifndef OPENSSL_NO_DH
PACKET prime, generator, pub_key;
if (!PACKET_get_length_prefixed_2(pkt, &prime)
|| !PACKET_get_length_prefixed_2(pkt, &generator)
|| !PACKET_get_length_prefixed_2(pkt, &pub_key)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, SSL_R_LENGTH_MISMATCH);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
+ SSL_R_LENGTH_MISMATCH);
return 0;
}
dh = DH_new();
if (peer_tmp == NULL || dh == NULL) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
bnpub_key = BN_bin2bn(PACKET_data(&pub_key),
(int)PACKET_remaining(&pub_key), NULL);
if (p == NULL || g == NULL || bnpub_key == NULL) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, ERR_R_BN_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
+ ERR_R_BN_LIB);
goto err;
}
- /* test non-zero pupkey */
+ /* test non-zero pubkey */
if (BN_is_zero(bnpub_key)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, SSL_R_BAD_DH_VALUE);
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SKE_DHE,
+ SSL_R_BAD_DH_VALUE);
goto err;
}
if (!DH_set0_pqg(dh, p, NULL, g)) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, ERR_R_BN_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
+ ERR_R_BN_LIB);
goto err;
}
p = g = NULL;
if (DH_check_params(dh, &check_bits) == 0 || check_bits != 0) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, SSL_R_BAD_DH_VALUE);
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SKE_DHE,
+ SSL_R_BAD_DH_VALUE);
goto err;
}
if (!DH_set0_key(dh, bnpub_key, NULL)) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, ERR_R_BN_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
+ ERR_R_BN_LIB);
goto err;
}
bnpub_key = NULL;
if (!ssl_security(s, SSL_SECOP_TMP_DH, DH_security_bits(dh), 0, dh)) {
- *al = SSL_AD_HANDSHAKE_FAILURE;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, SSL_R_DH_KEY_TOO_SMALL);
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_TLS_PROCESS_SKE_DHE,
+ SSL_R_DH_KEY_TOO_SMALL);
goto err;
}
if (EVP_PKEY_assign_DH(peer_tmp, dh) == 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, ERR_R_EVP_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
+ ERR_R_EVP_LIB);
goto err;
}
return 0;
#else
- SSLerr(SSL_F_TLS_PROCESS_SKE_DHE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_DHE,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
-static int tls_process_ske_ecdhe(SSL *s, PACKET *pkt, EVP_PKEY **pkey, int *al)
+static int tls_process_ske_ecdhe(SSL *s, PACKET *pkt, EVP_PKEY **pkey)
{
#ifndef OPENSSL_NO_EC
PACKET encoded_pt;
- const unsigned char *ecparams;
- int curve_nid;
- unsigned int curve_flags;
- EVP_PKEY_CTX *pctx = NULL;
+ unsigned int curve_type, curve_id;
/*
* Extract elliptic curve parameters and the server's ephemeral ECDH
- * public key. For now we only support named (not generic) curves and
+ * public key. We only support named (not generic) curves and
* ECParameters in this case is just three bytes.
*/
- if (!PACKET_get_bytes(pkt, &ecparams, 3)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE, SSL_R_LENGTH_TOO_SHORT);
+ if (!PACKET_get_1(pkt, &curve_type) || !PACKET_get_net_2(pkt, &curve_id)) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SKE_ECDHE,
+ SSL_R_LENGTH_TOO_SHORT);
return 0;
}
/*
- * Check curve is one of our preferences, if not server has sent an
- * invalid curve. ECParameters is 3 bytes.
+ * Check curve is named curve type and one of our preferences, if not
+ * server has sent an invalid curve.
*/
- if (!tls1_check_curve(s, ecparams, 3)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE, SSL_R_WRONG_CURVE);
+ if (curve_type != NAMED_CURVE_TYPE || !tls1_check_group_id(s, curve_id)) {
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SKE_ECDHE,
+ SSL_R_WRONG_CURVE);
return 0;
}
- curve_nid = tls1_ec_curve_id2nid(*(ecparams + 2), &curve_flags);
-
- if (curve_nid == 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE,
- SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
+ if ((s->s3->peer_tmp = ssl_generate_param_group(curve_id)) == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_ECDHE,
+ SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
return 0;
}
- if ((curve_flags & TLS_CURVE_TYPE) == TLS_CURVE_CUSTOM) {
- EVP_PKEY *key = EVP_PKEY_new();
-
- if (key == NULL || !EVP_PKEY_set_type(key, curve_nid)) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE, ERR_R_EVP_LIB);
- EVP_PKEY_free(key);
- return 0;
- }
- s->s3->peer_tmp = key;
- } else {
- /* Set up EVP_PKEY with named curve as parameters */
- pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_EC, NULL);
- if (pctx == NULL
- || EVP_PKEY_paramgen_init(pctx) <= 0
- || EVP_PKEY_CTX_set_ec_paramgen_curve_nid(pctx, curve_nid) <= 0
- || EVP_PKEY_paramgen(pctx, &s->s3->peer_tmp) <= 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE, ERR_R_EVP_LIB);
- EVP_PKEY_CTX_free(pctx);
- return 0;
- }
- EVP_PKEY_CTX_free(pctx);
- pctx = NULL;
- }
-
if (!PACKET_get_length_prefixed_1(pkt, &encoded_pt)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE, SSL_R_LENGTH_MISMATCH);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SKE_ECDHE,
+ SSL_R_LENGTH_MISMATCH);
return 0;
}
if (!EVP_PKEY_set1_tls_encodedpoint(s->s3->peer_tmp,
PACKET_data(&encoded_pt),
PACKET_remaining(&encoded_pt))) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE, SSL_R_BAD_ECPOINT);
+ SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_TLS_PROCESS_SKE_ECDHE,
+ SSL_R_BAD_ECPOINT);
return 0;
}
return 1;
#else
- SSLerr(SSL_F_TLS_PROCESS_SKE_ECDHE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SKE_ECDHE,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
MSG_PROCESS_RETURN tls_process_key_exchange(SSL *s, PACKET *pkt)
{
- int al = -1;
long alg_k;
EVP_PKEY *pkey = NULL;
EVP_MD_CTX *md_ctx = NULL;
#endif
if (alg_k & SSL_PSK) {
- if (!tls_process_ske_psk_preamble(s, pkt, &al))
+ if (!tls_process_ske_psk_preamble(s, pkt)) {
+ /* SSLfatal() already called */
goto err;
+ }
}
/* Nothing else to do for plain PSK or RSAPSK */
if (alg_k & (SSL_kPSK | SSL_kRSAPSK)) {
} else if (alg_k & SSL_kSRP) {
- if (!tls_process_ske_srp(s, pkt, &pkey, &al))
+ if (!tls_process_ske_srp(s, pkt, &pkey)) {
+ /* SSLfatal() already called */
goto err;
+ }
} else if (alg_k & (SSL_kDHE | SSL_kDHEPSK)) {
- if (!tls_process_ske_dhe(s, pkt, &pkey, &al))
+ if (!tls_process_ske_dhe(s, pkt, &pkey)) {
+ /* SSLfatal() already called */
goto err;
+ }
} else if (alg_k & (SSL_kECDHE | SSL_kECDHEPSK)) {
- if (!tls_process_ske_ecdhe(s, pkt, &pkey, &al))
+ if (!tls_process_ske_ecdhe(s, pkt, &pkey)) {
+ /* SSLfatal() already called */
goto err;
+ }
} else if (alg_k) {
- al = SSL_AD_UNEXPECTED_MESSAGE;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, SSL_R_UNEXPECTED_MESSAGE);
+ SSLfatal(s, SSL_AD_UNEXPECTED_MESSAGE, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ SSL_R_UNEXPECTED_MESSAGE);
goto err;
}
PACKET params;
int maxsig;
const EVP_MD *md = NULL;
+ unsigned char *tbs;
+ size_t tbslen;
+ int rv;
/*
* |pkt| now points to the beginning of the signature, so the difference
if (!PACKET_get_sub_packet(&save_param_start, ¶ms,
PACKET_remaining(&save_param_start) -
PACKET_remaining(pkt))) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
if (SSL_USE_SIGALGS(s)) {
unsigned int sigalg;
- int rv;
if (!PACKET_get_net_2(pkt, &sigalg)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, SSL_R_LENGTH_TOO_SHORT);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ SSL_R_LENGTH_TOO_SHORT);
goto err;
}
- rv = tls12_check_peer_sigalg(s, sigalg, pkey);
- if (rv == -1) {
- al = SSL_AD_INTERNAL_ERROR;
- goto err;
- } else if (rv == 0) {
- al = SSL_AD_DECODE_ERROR;
+ if (tls12_check_peer_sigalg(s, sigalg, pkey) <=0) {
+ /* SSLfatal() already called */
goto err;
}
#ifdef SSL_DEBUG
fprintf(stderr, "USING TLSv1.2 HASH %s\n", EVP_MD_name(md));
#endif
} else if (!tls1_set_peer_legacy_sigalg(s, pkey)) {
- al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
- md = ssl_md(s->s3->tmp.peer_sigalg->hash_idx);
+ if (!tls1_lookup_md(s->s3->tmp.peer_sigalg, &md)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
if (!PACKET_get_length_prefixed_2(pkt, &signature)
|| PACKET_remaining(pkt) != 0) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, SSL_R_LENGTH_MISMATCH);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ SSL_R_LENGTH_MISMATCH);
goto err;
}
maxsig = EVP_PKEY_size(pkey);
if (maxsig < 0) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
*/
if (PACKET_remaining(&signature) > (size_t)maxsig) {
/* wrong packet length */
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
SSL_R_WRONG_SIGNATURE_LENGTH);
goto err;
}
md_ctx = EVP_MD_CTX_new();
if (md_ctx == NULL) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
if (EVP_DigestVerifyInit(md_ctx, &pctx, md, NULL, pkey) <= 0) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_EVP_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ ERR_R_EVP_LIB);
goto err;
}
if (SSL_USE_PSS(s)) {
if (EVP_PKEY_CTX_set_rsa_padding(pctx, RSA_PKCS1_PSS_PADDING) <= 0
|| EVP_PKEY_CTX_set_rsa_pss_saltlen(pctx,
RSA_PSS_SALTLEN_DIGEST) <= 0) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_EVP_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_EVP_LIB);
goto err;
}
}
- if (EVP_DigestVerifyUpdate(md_ctx, &(s->s3->client_random[0]),
- SSL3_RANDOM_SIZE) <= 0
- || EVP_DigestVerifyUpdate(md_ctx, &(s->s3->server_random[0]),
- SSL3_RANDOM_SIZE) <= 0
- || EVP_DigestVerifyUpdate(md_ctx, PACKET_data(¶ms),
- PACKET_remaining(¶ms)) <= 0) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_EVP_LIB);
+ tbslen = construct_key_exchange_tbs(s, &tbs, PACKET_data(¶ms),
+ PACKET_remaining(¶ms));
+ if (tbslen == 0) {
+ /* SSLfatal() already called */
goto err;
}
- if (EVP_DigestVerifyFinal(md_ctx, PACKET_data(&signature),
- PACKET_remaining(&signature)) <= 0) {
- /* bad signature */
- al = SSL_AD_DECRYPT_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, SSL_R_BAD_SIGNATURE);
+
+ rv = EVP_DigestVerify(md_ctx, PACKET_data(&signature),
+ PACKET_remaining(&signature), tbs, tbslen);
+ OPENSSL_free(tbs);
+ if (rv <= 0) {
+ SSLfatal(s, SSL_AD_DECRYPT_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ SSL_R_BAD_SIGNATURE);
goto err;
}
EVP_MD_CTX_free(md_ctx);
&& !(alg_k & SSL_PSK)) {
/* Might be wrong key type, check it */
if (ssl3_check_cert_and_algorithm(s)) {
- /* Otherwise this shouldn't happen */
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
- } else {
- al = SSL_AD_DECODE_ERROR;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ SSL_R_BAD_DATA);
}
+ /* else this shouldn't happen, SSLfatal() already called */
goto err;
}
/* still data left over */
if (PACKET_remaining(pkt) != 0) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_KEY_EXCHANGE, SSL_R_EXTRA_DATA_IN_MESSAGE);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_KEY_EXCHANGE,
+ SSL_R_EXTRA_DATA_IN_MESSAGE);
goto err;
}
}
return MSG_PROCESS_CONTINUE_READING;
err:
- if (al != -1)
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
EVP_MD_CTX_free(md_ctx);
return MSG_PROCESS_ERROR;
}
MSG_PROCESS_RETURN tls_process_certificate_request(SSL *s, PACKET *pkt)
{
- int ret = MSG_PROCESS_ERROR;
- unsigned int list_len, ctype_num, i, name_len;
- X509_NAME *xn = NULL;
- const unsigned char *data;
- const unsigned char *namestart, *namebytes;
- STACK_OF(X509_NAME) *ca_sk = NULL;
+ size_t i;
- if ((ca_sk = sk_X509_NAME_new(ca_dn_cmp)) == NULL) {
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
- goto err;
- }
+ /* Clear certificate validity flags */
+ for (i = 0; i < SSL_PKEY_NUM; i++)
+ s->s3->tmp.valid_flags[i] = 0;
- /* get the certificate types */
- if (!PACKET_get_1(pkt, &ctype_num)
- || !PACKET_get_bytes(pkt, &data, ctype_num)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, SSL_R_LENGTH_MISMATCH);
- goto err;
- }
- OPENSSL_free(s->cert->ctypes);
- s->cert->ctypes = NULL;
- if (ctype_num > SSL3_CT_NUMBER) {
- /* If we exceed static buffer copy all to cert structure */
- s->cert->ctypes = OPENSSL_malloc(ctype_num);
- if (s->cert->ctypes == NULL) {
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- memcpy(s->cert->ctypes, data, ctype_num);
- s->cert->ctype_num = ctype_num;
- ctype_num = SSL3_CT_NUMBER;
- }
- for (i = 0; i < ctype_num; i++)
- s->s3->tmp.ctype[i] = data[i];
-
- if (SSL_USE_SIGALGS(s)) {
- PACKET sigalgs;
-
- if (!PACKET_get_length_prefixed_2(pkt, &sigalgs)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
- SSL_R_LENGTH_MISMATCH);
- goto err;
- }
-
- /* Clear certificate digests and validity flags */
- for (i = 0; i < SSL_PKEY_NUM; i++) {
- s->s3->tmp.md[i] = NULL;
- s->s3->tmp.valid_flags[i] = 0;
- }
- if (!tls1_save_sigalgs(s, &sigalgs)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
- SSL_R_SIGNATURE_ALGORITHMS_ERROR);
- goto err;
+ if (SSL_IS_TLS13(s)) {
+ PACKET reqctx, extensions;
+ RAW_EXTENSION *rawexts = NULL;
+
+ /* Free and zero certificate types: it is not present in TLS 1.3 */
+ OPENSSL_free(s->s3->tmp.ctype);
+ s->s3->tmp.ctype = NULL;
+ s->s3->tmp.ctype_len = 0;
+
+ /* TODO(TLS1.3) need to process request context, for now ignore */
+ if (!PACKET_get_length_prefixed_1(pkt, &reqctx)) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ SSL_R_LENGTH_MISMATCH);
+ return MSG_PROCESS_ERROR;
+ }
+
+ if (!PACKET_get_length_prefixed_2(pkt, &extensions)) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ SSL_R_BAD_LENGTH);
+ return MSG_PROCESS_ERROR;
+ }
+ if (!tls_collect_extensions(s, &extensions,
+ SSL_EXT_TLS1_3_CERTIFICATE_REQUEST,
+ &rawexts, NULL, 1)
+ || !tls_parse_all_extensions(s, SSL_EXT_TLS1_3_CERTIFICATE_REQUEST,
+ rawexts, NULL, 0, 1)) {
+ /* SSLfatal() already called */
+ OPENSSL_free(rawexts);
+ return MSG_PROCESS_ERROR;
}
+ OPENSSL_free(rawexts);
if (!tls1_process_sigalgs(s)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
- goto err;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ SSL_R_BAD_LENGTH);
+ return MSG_PROCESS_ERROR;
}
} else {
- ssl_set_default_md(s);
- }
+ PACKET ctypes;
- /* get the CA RDNs */
- if (!PACKET_get_net_2(pkt, &list_len)
- || PACKET_remaining(pkt) != list_len) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, SSL_R_LENGTH_MISMATCH);
- goto err;
- }
+ /* get the certificate types */
+ if (!PACKET_get_length_prefixed_1(pkt, &ctypes)) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ SSL_R_LENGTH_MISMATCH);
+ return MSG_PROCESS_ERROR;
+ }
- while (PACKET_remaining(pkt)) {
- if (!PACKET_get_net_2(pkt, &name_len)
- || !PACKET_get_bytes(pkt, &namebytes, name_len)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
- SSL_R_LENGTH_MISMATCH);
- goto err;
+ if (!PACKET_memdup(&ctypes, &s->s3->tmp.ctype, &s->s3->tmp.ctype_len)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ ERR_R_INTERNAL_ERROR);
+ return MSG_PROCESS_ERROR;
}
- namestart = namebytes;
+ if (SSL_USE_SIGALGS(s)) {
+ PACKET sigalgs;
- if ((xn = d2i_X509_NAME(NULL, (const unsigned char **)&namebytes,
- name_len)) == NULL) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, ERR_R_ASN1_LIB);
- goto err;
- }
+ if (!PACKET_get_length_prefixed_2(pkt, &sigalgs)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ SSL_R_LENGTH_MISMATCH);
+ return MSG_PROCESS_ERROR;
+ }
- if (namebytes != (namestart + name_len)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
- SSL_R_CA_DN_LENGTH_MISMATCH);
- goto err;
+ if (!tls1_save_sigalgs(s, &sigalgs)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ SSL_R_SIGNATURE_ALGORITHMS_ERROR);
+ return MSG_PROCESS_ERROR;
+ }
+ if (!tls1_process_sigalgs(s)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ ERR_R_MALLOC_FAILURE);
+ return MSG_PROCESS_ERROR;
+ }
}
- if (!sk_X509_NAME_push(ca_sk, xn)) {
- SSLerr(SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST, ERR_R_MALLOC_FAILURE);
- goto err;
+
+ /* get the CA RDNs */
+ if (!parse_ca_names(s, pkt)) {
+ /* SSLfatal() already called */
+ return MSG_PROCESS_ERROR;
}
- xn = NULL;
+ }
+
+ if (PACKET_remaining(pkt) != 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_CERTIFICATE_REQUEST,
+ SSL_R_LENGTH_MISMATCH);
+ return MSG_PROCESS_ERROR;
}
/* we should setup a certificate to return.... */
s->s3->tmp.cert_req = 1;
- s->s3->tmp.ctype_num = ctype_num;
- sk_X509_NAME_pop_free(s->s3->tmp.ca_names, X509_NAME_free);
- s->s3->tmp.ca_names = ca_sk;
- ca_sk = NULL;
-
- ret = MSG_PROCESS_CONTINUE_PROCESSING;
- goto done;
- err:
- ossl_statem_set_error(s);
- done:
- X509_NAME_free(xn);
- sk_X509_NAME_pop_free(ca_sk, X509_NAME_free);
- return ret;
-}
-static int ca_dn_cmp(const X509_NAME *const *a, const X509_NAME *const *b)
-{
- return (X509_NAME_cmp(*a, *b));
+ return MSG_PROCESS_CONTINUE_PROCESSING;
}
MSG_PROCESS_RETURN tls_process_new_session_ticket(SSL *s, PACKET *pkt)
{
- int al = SSL_AD_DECODE_ERROR;
unsigned int ticklen;
unsigned long ticket_lifetime_hint, age_add = 0;
unsigned int sess_len;
RAW_EXTENSION *exts = NULL;
+ PACKET nonce;
if (!PACKET_get_net_4(pkt, &ticket_lifetime_hint)
- || (SSL_IS_TLS13(s) && !PACKET_get_net_4(pkt, &age_add))
+ || (SSL_IS_TLS13(s)
+ && (!PACKET_get_net_4(pkt, &age_add)
+ || !PACKET_get_length_prefixed_1(pkt, &nonce)
+ || !PACKET_memdup(&nonce, &s->session->ext.tick_nonce,
+ &s->session->ext.tick_nonce_len)))
|| !PACKET_get_net_2(pkt, &ticklen)
|| (!SSL_IS_TLS13(s) && PACKET_remaining(pkt) != ticklen)
|| (SSL_IS_TLS13(s)
&& (ticklen == 0 || PACKET_remaining(pkt) < ticklen))) {
- SSLerr(SSL_F_TLS_PROCESS_NEW_SESSION_TICKET, SSL_R_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_NEW_SESSION_TICKET,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
}
/*
if (ticklen == 0)
return MSG_PROCESS_CONTINUE_READING;
- /* TODO(TLS1.3): Is this a suitable test for TLS1.3? */
- if (s->session->session_id_length > 0) {
+ /*
+ * Sessions must be immutable once they go into the session cache. Otherwise
+ * we can get multi-thread problems. Therefore we don't "update" sessions,
+ * we replace them with a duplicate. In TLSv1.3 we need to do this every
+ * time a NewSessionTicket arrives because those messages arrive
+ * post-handshake and the session may have already gone into the session
+ * cache.
+ */
+ if (SSL_IS_TLS13(s) || s->session->session_id_length > 0) {
int i = s->session_ctx->session_cache_mode;
SSL_SESSION *new_sess;
/*
* We reused an existing session, so we need to replace it with a new
* one
*/
+ if ((new_sess = ssl_session_dup(s->session, 0)) == 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_NEW_SESSION_TICKET,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
if (i & SSL_SESS_CACHE_CLIENT) {
/*
* Remove the old session from the cache. We carry on if this fails
SSL_CTX_remove_session(s->session_ctx, s->session);
}
- if ((new_sess = ssl_session_dup(s->session, 0)) == 0) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_NEW_SESSION_TICKET, ERR_R_MALLOC_FAILURE);
- goto f_err;
- }
-
SSL_SESSION_free(s->session);
s->session = new_sess;
}
s->session->ext.tick = OPENSSL_malloc(ticklen);
if (s->session->ext.tick == NULL) {
- SSLerr(SSL_F_TLS_PROCESS_NEW_SESSION_TICKET, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_NEW_SESSION_TICKET,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
if (!PACKET_copy_bytes(pkt, s->session->ext.tick, ticklen)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_NEW_SESSION_TICKET, SSL_R_LENGTH_MISMATCH);
- goto f_err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_NEW_SESSION_TICKET,
+ SSL_R_LENGTH_MISMATCH);
+ goto err;
}
s->session->ext.tick_lifetime_hint = ticket_lifetime_hint;
PACKET extpkt;
if (!PACKET_as_length_prefixed_2(pkt, &extpkt)
+ || PACKET_remaining(pkt) != 0
|| !tls_collect_extensions(s, &extpkt,
- EXT_TLS1_3_NEW_SESSION_TICKET,
- &exts, &al)
- || !tls_parse_all_extensions(s, EXT_TLS1_3_NEW_SESSION_TICKET,
- exts, NULL, 0, &al)) {
- SSLerr(SSL_F_TLS_PROCESS_NEW_SESSION_TICKET, SSL_R_BAD_EXTENSION);
- goto f_err;
+ SSL_EXT_TLS1_3_NEW_SESSION_TICKET,
+ &exts, NULL, 1)
+ || !tls_parse_all_extensions(s,
+ SSL_EXT_TLS1_3_NEW_SESSION_TICKET,
+ exts, NULL, 0, 1)) {
+ /* SSLfatal() already called */
+ goto err;
}
}
if (!EVP_Digest(s->session->ext.tick, ticklen,
s->session->session_id, &sess_len,
EVP_sha256(), NULL)) {
- SSLerr(SSL_F_TLS_PROCESS_NEW_SESSION_TICKET, ERR_R_EVP_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_NEW_SESSION_TICKET,
+ ERR_R_EVP_LIB);
goto err;
}
s->session->session_id_length = sess_len;
}
return MSG_PROCESS_CONTINUE_READING;
- f_err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
err:
- ossl_statem_set_error(s);
OPENSSL_free(exts);
return MSG_PROCESS_ERROR;
}
/*
* In TLSv1.3 this is called from the extensions code, otherwise it is used to
- * parse a separate message. Returns 1 on success or 0 on failure. On failure
- * |*al| is populated with a suitable alert code.
+ * parse a separate message. Returns 1 on success or 0 on failure
*/
-int tls_process_cert_status_body(SSL *s, PACKET *pkt, int *al)
+int tls_process_cert_status_body(SSL *s, PACKET *pkt)
{
size_t resplen;
unsigned int type;
if (!PACKET_get_1(pkt, &type)
|| type != TLSEXT_STATUSTYPE_ocsp) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_CERT_STATUS_BODY,
- SSL_R_UNSUPPORTED_STATUS_TYPE);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CERT_STATUS_BODY,
+ SSL_R_UNSUPPORTED_STATUS_TYPE);
return 0;
}
if (!PACKET_get_net_3_len(pkt, &resplen)
|| PACKET_remaining(pkt) != resplen) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_CERT_STATUS_BODY, SSL_R_LENGTH_MISMATCH);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CERT_STATUS_BODY,
+ SSL_R_LENGTH_MISMATCH);
return 0;
}
s->ext.ocsp.resp = OPENSSL_malloc(resplen);
if (s->ext.ocsp.resp == NULL) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_CERT_STATUS_BODY, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CERT_STATUS_BODY,
+ ERR_R_MALLOC_FAILURE);
return 0;
}
if (!PACKET_copy_bytes(pkt, s->ext.ocsp.resp, resplen)) {
- *al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_CERT_STATUS_BODY, SSL_R_LENGTH_MISMATCH);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CERT_STATUS_BODY,
+ SSL_R_LENGTH_MISMATCH);
return 0;
}
s->ext.ocsp.resp_len = resplen;
MSG_PROCESS_RETURN tls_process_cert_status(SSL *s, PACKET *pkt)
{
- int al;
-
- if (!tls_process_cert_status_body(s, pkt, &al)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
+ if (!tls_process_cert_status_body(s, pkt)) {
+ /* SSLfatal() already called */
return MSG_PROCESS_ERROR;
}
* In <=TLS1.2 this is after the ServerDone message. Returns 1 on success or 0
* on failure.
*/
-int tls_process_initial_server_flight(SSL *s, int *al)
+int tls_process_initial_server_flight(SSL *s)
{
/*
* at this point we check that we have the required stuff from
* the server
*/
if (!ssl3_check_cert_and_algorithm(s)) {
- *al = SSL_AD_HANDSHAKE_FAILURE;
+ /* SSLfatal() already called */
return 0;
}
int ret = s->ctx->ext.status_cb(s, s->ctx->ext.status_arg);
if (ret == 0) {
- *al = SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
- SSLerr(SSL_F_TLS_PROCESS_INITIAL_SERVER_FLIGHT,
- SSL_R_INVALID_STATUS_RESPONSE);
+ SSLfatal(s, SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE,
+ SSL_F_TLS_PROCESS_INITIAL_SERVER_FLIGHT,
+ SSL_R_INVALID_STATUS_RESPONSE);
return 0;
}
if (ret < 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_INITIAL_SERVER_FLIGHT,
- ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PROCESS_INITIAL_SERVER_FLIGHT,
+ ERR_R_MALLOC_FAILURE);
return 0;
}
}
if (s->ct_validation_callback != NULL) {
/* Note we validate the SCTs whether or not we abort on error */
if (!ssl_validate_ct(s) && (s->verify_mode & SSL_VERIFY_PEER)) {
- *al = SSL_AD_HANDSHAKE_FAILURE;
+ /* SSLfatal() already called */
return 0;
}
}
MSG_PROCESS_RETURN tls_process_server_done(SSL *s, PACKET *pkt)
{
- int al = SSL_AD_INTERNAL_ERROR;
-
if (PACKET_remaining(pkt) > 0) {
/* should contain no data */
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_SERVER_DONE, SSL_R_LENGTH_MISMATCH);
- goto err;
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_SERVER_DONE,
+ SSL_R_LENGTH_MISMATCH);
+ return MSG_PROCESS_ERROR;
}
#ifndef OPENSSL_NO_SRP
if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) {
if (SRP_Calc_A_param(s) <= 0) {
- SSLerr(SSL_F_TLS_PROCESS_SERVER_DONE, SSL_R_SRP_A_CALC);
- goto err;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_SERVER_DONE,
+ SSL_R_SRP_A_CALC);
+ return MSG_PROCESS_ERROR;
}
}
#endif
- /*
- * Error queue messages are generated directly by this function
- */
- if (!tls_process_initial_server_flight(s, &al))
- goto err;
-
-#ifndef OPENSSL_NO_SCTP
- /* Only applies to renegotiation */
- if (SSL_IS_DTLS(s) && BIO_dgram_is_sctp(SSL_get_wbio(s))
- && s->renegotiate != 0)
- return MSG_PROCESS_CONTINUE_PROCESSING;
- else
-#endif
- return MSG_PROCESS_FINISHED_READING;
+ if (!tls_process_initial_server_flight(s)) {
+ /* SSLfatal() already called */
+ return MSG_PROCESS_ERROR;
+ }
- err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
- return MSG_PROCESS_ERROR;
+ return MSG_PROCESS_FINISHED_READING;
}
-static int tls_construct_cke_psk_preamble(SSL *s, WPACKET *pkt, int *al)
+static int tls_construct_cke_psk_preamble(SSL *s, WPACKET *pkt)
{
#ifndef OPENSSL_NO_PSK
int ret = 0;
size_t psklen = 0;
if (s->psk_client_callback == NULL) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE, SSL_R_PSK_NO_CLIENT_CB);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE,
+ SSL_R_PSK_NO_CLIENT_CB);
goto err;
}
psk, sizeof(psk));
if (psklen > PSK_MAX_PSK_LEN) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_HANDSHAKE_FAILURE;
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
+ SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE, ERR_R_INTERNAL_ERROR);
goto err;
} else if (psklen == 0) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE,
- SSL_R_PSK_IDENTITY_NOT_FOUND);
- *al = SSL_AD_HANDSHAKE_FAILURE;
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
+ SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE,
+ SSL_R_PSK_IDENTITY_NOT_FOUND);
goto err;
}
identitylen = strlen(identity);
if (identitylen > PSK_MAX_IDENTITY_LEN) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_HANDSHAKE_FAILURE;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
tmppsk = OPENSSL_memdup(psk, psklen);
tmpidentity = OPENSSL_strdup(identity);
if (tmppsk == NULL || tmpidentity == NULL) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE, ERR_R_MALLOC_FAILURE);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
tmpidentity = NULL;
if (!WPACKET_sub_memcpy_u16(pkt, identity, identitylen)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
return ret;
#else
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_PSK_PREAMBLE,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
-static int tls_construct_cke_rsa(SSL *s, WPACKET *pkt, int *al)
+static int tls_construct_cke_rsa(SSL *s, WPACKET *pkt)
{
#ifndef OPENSSL_NO_RSA
unsigned char *encdata = NULL;
/*
* We should always have a server certificate with SSL_kRSA.
*/
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
pkey = X509_get0_pubkey(s->session->peer);
if (EVP_PKEY_get0_RSA(pkey) == NULL) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
pmslen = SSL_MAX_MASTER_KEY_LENGTH;
pms = OPENSSL_malloc(pmslen);
if (pms == NULL) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, ERR_R_MALLOC_FAILURE);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_MALLOC_FAILURE);
return 0;
}
pms[0] = s->client_version >> 8;
pms[1] = s->client_version & 0xff;
/* TODO(size_t): Convert this function */
- if (RAND_bytes(pms + 2, (int)(pmslen - 2)) <= 0) {
+ if (ssl_randbytes(s, pms + 2, (int)(pmslen - 2)) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
/* Fix buf for TLS and beyond */
if (s->version > SSL3_VERSION && !WPACKET_start_sub_packet_u16(pkt)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
pctx = EVP_PKEY_CTX_new(pkey, NULL);
if (pctx == NULL || EVP_PKEY_encrypt_init(pctx) <= 0
|| EVP_PKEY_encrypt(pctx, NULL, &enclen, pms, pmslen) <= 0) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, ERR_R_EVP_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_EVP_LIB);
goto err;
}
if (!WPACKET_allocate_bytes(pkt, enclen, &encdata)
|| EVP_PKEY_encrypt(pctx, encdata, &enclen, pms, pmslen) <= 0) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, SSL_R_BAD_RSA_ENCRYPT);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ SSL_R_BAD_RSA_ENCRYPT);
goto err;
}
EVP_PKEY_CTX_free(pctx);
pctx = NULL;
-# ifdef PKCS1_CHECK
- if (s->options & SSL_OP_PKCS1_CHECK_1)
- (*p)[1]++;
- if (s->options & SSL_OP_PKCS1_CHECK_2)
- tmp_buf[0] = 0x70;
-# endif
/* Fix buf for TLS and beyond */
if (s->version > SSL3_VERSION && !WPACKET_close(pkt)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
- s->s3->tmp.pms = pms;
- s->s3->tmp.pmslen = pmslen;
-
/* Log the premaster secret, if logging is enabled. */
- if (!ssl_log_rsa_client_key_exchange(s, encdata, enclen, pms, pmslen))
+ if (!ssl_log_rsa_client_key_exchange(s, encdata, enclen, pms, pmslen)) {
+ /* SSLfatal() already called */
goto err;
+ }
+
+ s->s3->tmp.pms = pms;
+ s->s3->tmp.pmslen = pmslen;
return 1;
err:
return 0;
#else
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_RSA, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_RSA,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
-static int tls_construct_cke_dhe(SSL *s, WPACKET *pkt, int *al)
+static int tls_construct_cke_dhe(SSL *s, WPACKET *pkt)
{
#ifndef OPENSSL_NO_DH
DH *dh_clnt = NULL;
unsigned char *keybytes = NULL;
skey = s->s3->peer_tmp;
- if (skey == NULL)
+ if (skey == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_DHE,
+ ERR_R_INTERNAL_ERROR);
goto err;
+ }
ckey = ssl_generate_pkey(skey);
- if (ckey == NULL)
+ if (ckey == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_DHE,
+ ERR_R_INTERNAL_ERROR);
goto err;
+ }
dh_clnt = EVP_PKEY_get0_DH(ckey);
- if (dh_clnt == NULL || ssl_derive(s, ckey, skey, 0) == 0)
+ if (dh_clnt == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_DHE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ if (ssl_derive(s, ckey, skey, 0) == 0) {
+ /* SSLfatal() already called */
goto err;
+ }
/* send off the data */
DH_get0_key(dh_clnt, &pub_key, NULL);
- if (!WPACKET_sub_allocate_bytes_u16(pkt, BN_num_bytes(pub_key), &keybytes))
+ if (!WPACKET_sub_allocate_bytes_u16(pkt, BN_num_bytes(pub_key),
+ &keybytes)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_DHE,
+ ERR_R_INTERNAL_ERROR);
goto err;
+ }
BN_bn2bin(pub_key, keybytes);
EVP_PKEY_free(ckey);
return 1;
err:
EVP_PKEY_free(ckey);
-#endif
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_DHE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
return 0;
+#else
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_DHE,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+#endif
}
-static int tls_construct_cke_ecdhe(SSL *s, WPACKET *pkt, int *al)
+static int tls_construct_cke_ecdhe(SSL *s, WPACKET *pkt)
{
#ifndef OPENSSL_NO_EC
unsigned char *encodedPoint = NULL;
skey = s->s3->peer_tmp;
if (skey == NULL) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_ECDHE, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_ECDHE,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
ckey = ssl_generate_pkey(skey);
if (ckey == NULL) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_ECDHE, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_ECDHE,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
if (ssl_derive(s, ckey, skey, 0) == 0) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_ECDHE, ERR_R_EVP_LIB);
+ /* SSLfatal() already called */
goto err;
}
encoded_pt_len = EVP_PKEY_get1_tls_encodedpoint(ckey, &encodedPoint);
if (encoded_pt_len == 0) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_ECDHE, ERR_R_EC_LIB);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_ECDHE,
+ ERR_R_EC_LIB);
goto err;
}
if (!WPACKET_sub_memcpy_u8(pkt, encodedPoint, encoded_pt_len)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_ECDHE, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_ECDHE,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
EVP_PKEY_free(ckey);
return ret;
#else
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_ECDHE, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_ECDHE,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
-static int tls_construct_cke_gost(SSL *s, WPACKET *pkt, int *al)
+static int tls_construct_cke_gost(SSL *s, WPACKET *pkt)
{
#ifndef OPENSSL_NO_GOST
/* GOST key exchange message creation */
dgst_nid = NID_id_GostR3411_2012_256;
/*
- * Get server sertificate PKEY and create ctx from it
+ * Get server certificate PKEY and create ctx from it
*/
peer_cert = s->session->peer;
if (!peer_cert) {
- *al = SSL_AD_HANDSHAKE_FAILURE;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE, SSL_F_TLS_CONSTRUCT_CKE_GOST,
SSL_R_NO_GOST_CERTIFICATE_SENT_BY_PEER);
return 0;
}
pkey_ctx = EVP_PKEY_CTX_new(X509_get0_pubkey(peer_cert), NULL);
if (pkey_ctx == NULL) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ ERR_R_MALLOC_FAILURE);
return 0;
}
/*
pmslen = 32;
pms = OPENSSL_malloc(pmslen);
if (pms == NULL) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ ERR_R_MALLOC_FAILURE);
goto err;
}
/* Generate session key
* TODO(size_t): Convert this function
*/
- || RAND_bytes(pms, (int)pmslen) <= 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, ERR_R_INTERNAL_ERROR);
+ || ssl_randbytes(s, pms, (int)pmslen) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ ERR_R_INTERNAL_ERROR);
goto err;
};
/*
|| EVP_DigestUpdate(ukm_hash, s->s3->server_random,
SSL3_RANDOM_SIZE) <= 0
|| EVP_DigestFinal_ex(ukm_hash, shared_ukm, &md_len) <= 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
EVP_MD_CTX_free(ukm_hash);
ukm_hash = NULL;
if (EVP_PKEY_CTX_ctrl(pkey_ctx, -1, EVP_PKEY_OP_ENCRYPT,
EVP_PKEY_CTRL_SET_IV, 8, shared_ukm) < 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, SSL_R_LIBRARY_BUG);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ SSL_R_LIBRARY_BUG);
goto err;
}
/* Make GOST keytransport blob message */
*/
msglen = 255;
if (EVP_PKEY_encrypt(pkey_ctx, tmp, &msglen, pms, pmslen) <= 0) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, SSL_R_LIBRARY_BUG);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ SSL_R_LIBRARY_BUG);
goto err;
}
if (!WPACKET_put_bytes_u8(pkt, V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED)
|| (msglen >= 0x80 && !WPACKET_put_bytes_u8(pkt, 0x81))
|| !WPACKET_sub_memcpy_u8(pkt, tmp, msglen)) {
- *al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
EVP_MD_CTX_free(ukm_hash);
return 0;
#else
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_GOST, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
-static int tls_construct_cke_srp(SSL *s, WPACKET *pkt, int *al)
+static int tls_construct_cke_srp(SSL *s, WPACKET *pkt)
{
#ifndef OPENSSL_NO_SRP
unsigned char *abytes = NULL;
if (s->srp_ctx.A == NULL
|| !WPACKET_sub_allocate_bytes_u16(pkt, BN_num_bytes(s->srp_ctx.A),
&abytes)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_SRP, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_SRP,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
BN_bn2bin(s->srp_ctx.A, abytes);
OPENSSL_free(s->session->srp_username);
s->session->srp_username = OPENSSL_strdup(s->srp_ctx.login);
if (s->session->srp_username == NULL) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_SRP, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_SRP,
+ ERR_R_MALLOC_FAILURE);
return 0;
}
return 1;
#else
- SSLerr(SSL_F_TLS_CONSTRUCT_CKE_SRP, ERR_R_INTERNAL_ERROR);
- *al = SSL_AD_INTERNAL_ERROR;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_SRP,
+ ERR_R_INTERNAL_ERROR);
return 0;
#endif
}
int tls_construct_client_key_exchange(SSL *s, WPACKET *pkt)
{
unsigned long alg_k;
- int al = -1;
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
+ /*
+ * All of the construct functions below call SSLfatal() if necessary so
+ * no need to do so here.
+ */
if ((alg_k & SSL_PSK)
- && !tls_construct_cke_psk_preamble(s, pkt, &al))
+ && !tls_construct_cke_psk_preamble(s, pkt))
goto err;
if (alg_k & (SSL_kRSA | SSL_kRSAPSK)) {
- if (!tls_construct_cke_rsa(s, pkt, &al))
+ if (!tls_construct_cke_rsa(s, pkt))
goto err;
} else if (alg_k & (SSL_kDHE | SSL_kDHEPSK)) {
- if (!tls_construct_cke_dhe(s, pkt, &al))
+ if (!tls_construct_cke_dhe(s, pkt))
goto err;
} else if (alg_k & (SSL_kECDHE | SSL_kECDHEPSK)) {
- if (!tls_construct_cke_ecdhe(s, pkt, &al))
+ if (!tls_construct_cke_ecdhe(s, pkt))
goto err;
} else if (alg_k & SSL_kGOST) {
- if (!tls_construct_cke_gost(s, pkt, &al))
+ if (!tls_construct_cke_gost(s, pkt))
goto err;
} else if (alg_k & SSL_kSRP) {
- if (!tls_construct_cke_srp(s, pkt, &al))
+ if (!tls_construct_cke_srp(s, pkt))
goto err;
} else if (!(alg_k & SSL_kPSK)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE);
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CONSTRUCT_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
goto err;
}
return 1;
err:
- if (al != -1)
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
OPENSSL_clear_free(s->s3->tmp.pms, s->s3->tmp.pmslen);
s->s3->tmp.pms = NULL;
#ifndef OPENSSL_NO_PSK
/* Check for SRP */
if (s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) {
if (!srp_generate_client_master_secret(s)) {
- SSLerr(SSL_F_TLS_CLIENT_KEY_EXCHANGE_POST_WORK,
- ERR_R_INTERNAL_ERROR);
+ /* SSLfatal() already called */
goto err;
}
return 1;
#endif
if (pms == NULL && !(s->s3->tmp.new_cipher->algorithm_mkey & SSL_kPSK)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
- SSLerr(SSL_F_TLS_CLIENT_KEY_EXCHANGE_POST_WORK, ERR_R_MALLOC_FAILURE);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CLIENT_KEY_EXCHANGE_POST_WORK, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!ssl_generate_master_secret(s, pms, pmslen, 1)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
- SSLerr(SSL_F_TLS_CLIENT_KEY_EXCHANGE_POST_WORK, ERR_R_INTERNAL_ERROR);
+ /* SSLfatal() already called */
/* ssl_generate_master_secret frees the pms even on error */
pms = NULL;
pmslen = 0;
if (SSL_export_keying_material(s, sctpauthkey,
sizeof(sctpauthkey), labelbuffer,
- sizeof(labelbuffer), NULL, 0, 0) <= 0)
+ sizeof(labelbuffer), NULL, 0, 0) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CLIENT_KEY_EXCHANGE_POST_WORK,
+ ERR_R_INTERNAL_ERROR);
goto err;
+ }
BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_SCTP_ADD_AUTH_KEY,
sizeof(sctpauthkey), sctpauthkey);
static int ssl3_check_client_certificate(SSL *s)
{
/* If no suitable signature algorithm can't use certificate */
- if (!tls_choose_sigalg(s, NULL) || s->s3->tmp.sigalg == NULL)
+ if (!tls_choose_sigalg(s, 0) || s->s3->tmp.sigalg == NULL)
return 0;
/*
* If strict mode check suitability of chain before using it. This also
return WORK_MORE_A;
}
if (i == 0) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
- ossl_statem_set_error(s);
- return 0;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_PREPARE_CLIENT_CERTIFICATE,
+ SSL_R_CALLBACK_FAILED);
+ return WORK_ERROR;
}
s->rwstate = SSL_NOTHING;
}
} else {
s->s3->tmp.cert_req = 2;
if (!ssl3_digest_cached_records(s, 0)) {
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
- ossl_statem_set_error(s);
- return 0;
+ /* SSLfatal() already called */
+ return WORK_ERROR;
}
}
}
}
/* Shouldn't ever get here */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PREPARE_CLIENT_CERTIFICATE,
+ ERR_R_INTERNAL_ERROR);
return WORK_ERROR;
}
int tls_construct_client_certificate(SSL *s, WPACKET *pkt)
{
- int al = SSL_AD_INTERNAL_ERROR;
-
/*
* TODO(TLS1.3): For now we must put an empty context. Needs to be filled in
* later
*/
- if ((SSL_IS_TLS13(s) && !WPACKET_put_bytes_u8(pkt, 0))
- || !ssl3_output_cert_chain(s, pkt,
- (s->s3->tmp.cert_req == 2) ? NULL
- : s->cert->key,
- &al)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR);
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
+ if (SSL_IS_TLS13(s) && !WPACKET_put_bytes_u8(pkt, 0)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CONSTRUCT_CLIENT_CERTIFICATE, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+ if (!ssl3_output_cert_chain(s, pkt,
+ (s->s3->tmp.cert_req == 2) ? NULL
+ : s->cert->key)) {
+ /* SSLfatal() already called */
+ return 0;
+ }
+
+ if (SSL_IS_TLS13(s)
+ && SSL_IS_FIRST_HANDSHAKE(s)
+ && (!s->method->ssl3_enc->change_cipher_state(s,
+ SSL3_CC_HANDSHAKE | SSL3_CHANGE_CIPHER_CLIENT_WRITE))) {
+ /*
+ * This is a fatal error, which leaves enc_write_ctx in an inconsistent
+ * state and thus ssl3_send_alert may crash.
+ */
+ SSLfatal(s, SSL_AD_NO_ALERT, SSL_F_TLS_CONSTRUCT_CLIENT_CERTIFICATE,
+ SSL_R_CANNOT_CHANGE_CIPHER);
return 0;
}
return 1;
}
-#define has_bits(i,m) (((i)&(m)) == (m))
-
int ssl3_check_cert_and_algorithm(SSL *s)
{
- int i;
-#ifndef OPENSSL_NO_EC
- int idx;
-#endif
+ const SSL_CERT_LOOKUP *clu;
+ size_t idx;
long alg_k, alg_a;
- EVP_PKEY *pkey = NULL;
- int al = SSL_AD_HANDSHAKE_FAILURE;
alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
alg_a = s->s3->tmp.new_cipher->algorithm_auth;
/* we don't have a certificate */
- if ((alg_a & SSL_aNULL) || (alg_k & SSL_kPSK))
- return (1);
+ if (!(alg_a & SSL_aCERT))
+ return 1;
/* This is the passed certificate */
+ clu = ssl_cert_lookup_by_pkey(X509_get0_pubkey(s->session->peer), &idx);
-#ifndef OPENSSL_NO_EC
- idx = s->session->peer_type;
- if (idx == SSL_PKEY_ECC) {
- if (ssl_check_srvr_ecc_cert_and_alg(s->session->peer, s) == 0) {
- /* check failed */
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_BAD_ECC_CERT);
- goto f_err;
- } else {
- return 1;
- }
- } else if (alg_a & SSL_aECDSA) {
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
- SSL_R_MISSING_ECDSA_SIGNING_CERT);
- goto f_err;
+ /* Check certificate is recognised and suitable for cipher */
+ if (clu == NULL || (alg_a & clu->amask) == 0) {
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
+ SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
+ SSL_R_MISSING_SIGNING_CERT);
+ return 0;
}
-#endif
- pkey = X509_get0_pubkey(s->session->peer);
- i = X509_certificate_type(s->session->peer, pkey);
- /* Check that we have a certificate if we require one */
- if ((alg_a & SSL_aRSA) && !has_bits(i, EVP_PK_RSA | EVP_PKT_SIGN)) {
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
- SSL_R_MISSING_RSA_SIGNING_CERT);
- goto f_err;
- }
-#ifndef OPENSSL_NO_DSA
- else if ((alg_a & SSL_aDSS) && !has_bits(i, EVP_PK_DSA | EVP_PKT_SIGN)) {
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
- SSL_R_MISSING_DSA_SIGNING_CERT);
- goto f_err;
+#ifndef OPENSSL_NO_EC
+ if (clu->amask & SSL_aECDSA) {
+ if (ssl_check_srvr_ecc_cert_and_alg(s->session->peer, s))
+ return 1;
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
+ SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, SSL_R_BAD_ECC_CERT);
+ return 0;
}
#endif
#ifndef OPENSSL_NO_RSA
- if (alg_k & (SSL_kRSA | SSL_kRSAPSK) &&
- !has_bits(i, EVP_PK_RSA | EVP_PKT_ENC)) {
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
- SSL_R_MISSING_RSA_ENCRYPTING_CERT);
- goto f_err;
+ if (alg_k & (SSL_kRSA | SSL_kRSAPSK) && idx != SSL_PKEY_RSA) {
+ SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
+ SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
+ SSL_R_MISSING_RSA_ENCRYPTING_CERT);
+ return 0;
}
#endif
#ifndef OPENSSL_NO_DH
if ((alg_k & SSL_kDHE) && (s->s3->peer_tmp == NULL)) {
- al = SSL_AD_INTERNAL_ERROR;
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM, ERR_R_INTERNAL_ERROR);
- goto f_err;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
}
#endif
- return (1);
- f_err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- return (0);
+ return 1;
}
#ifndef OPENSSL_NO_NEXTPROTONEG
if (!WPACKET_sub_memcpy_u8(pkt, s->ext.npn, len)
|| !WPACKET_sub_allocate_bytes_u8(pkt, padding_len, &padding)) {
- SSLerr(SSL_F_TLS_CONSTRUCT_NEXT_PROTO, ERR_R_INTERNAL_ERROR);
- goto err;
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_NEXT_PROTO,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
}
memset(padding, 0, padding_len);
return 1;
- err:
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_INTERNAL_ERROR);
- return 0;
}
#endif
{
if (PACKET_remaining(pkt) > 0) {
/* should contain no data */
- SSLerr(SSL_F_TLS_PROCESS_HELLO_REQ, SSL_R_LENGTH_MISMATCH);
- ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_DECODE_ERROR);
- ossl_statem_set_error(s);
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_HELLO_REQ,
+ SSL_R_LENGTH_MISMATCH);
return MSG_PROCESS_ERROR;
}
+ if ((s->options & SSL_OP_NO_RENEGOTIATION)) {
+ ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_NO_RENEGOTIATION);
+ return MSG_PROCESS_FINISHED_READING;
+ }
+
/*
* This is a historical discrepancy (not in the RFC) maintained for
* compatibility reasons. If a TLS client receives a HelloRequest it will
static MSG_PROCESS_RETURN tls_process_encrypted_extensions(SSL *s, PACKET *pkt)
{
- int al = SSL_AD_INTERNAL_ERROR;
PACKET extensions;
RAW_EXTENSION *rawexts = NULL;
- if (!PACKET_as_length_prefixed_2(pkt, &extensions)) {
- al = SSL_AD_DECODE_ERROR;
- SSLerr(SSL_F_TLS_PROCESS_ENCRYPTED_EXTENSIONS, SSL_R_LENGTH_MISMATCH);
+ if (!PACKET_as_length_prefixed_2(pkt, &extensions)
+ || PACKET_remaining(pkt) != 0) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_ENCRYPTED_EXTENSIONS,
+ SSL_R_LENGTH_MISMATCH);
goto err;
}
- if (!tls_collect_extensions(s, &extensions, EXT_TLS1_3_ENCRYPTED_EXTENSIONS,
- &rawexts, &al)
- || !tls_parse_all_extensions(s, EXT_TLS1_3_ENCRYPTED_EXTENSIONS,
- rawexts, NULL, 0, &al))
+ if (!tls_collect_extensions(s, &extensions,
+ SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS, &rawexts,
+ NULL, 1)
+ || !tls_parse_all_extensions(s, SSL_EXT_TLS1_3_ENCRYPTED_EXTENSIONS,
+ rawexts, NULL, 0, 1)) {
+ /* SSLfatal() already called */
goto err;
+ }
OPENSSL_free(rawexts);
return MSG_PROCESS_CONTINUE_READING;
err:
- ssl3_send_alert(s, SSL3_AL_FATAL, al);
- ossl_statem_set_error(s);
OPENSSL_free(rawexts);
return MSG_PROCESS_ERROR;
}
int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, WPACKET *pkt)
{
int i;
- size_t totlen = 0, len, maxlen;
+ size_t totlen = 0, len, maxlen, maxverok = 0;
int empty_reneg_info_scsv = !s->renegotiate;
/* Set disabled masks for this session */
ssl_set_client_disabled(s);
- if (sk == NULL)
- return (0);
+ if (sk == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CIPHER_LIST_TO_BYTES,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
#ifdef OPENSSL_MAX_TLS1_2_CIPHER_LENGTH
# if OPENSSL_MAX_TLS1_2_CIPHER_LENGTH < 6
c = sk_SSL_CIPHER_value(sk, i);
/* Skip disabled ciphers */
- if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED))
+ if (ssl_cipher_disabled(s, c, SSL_SECOP_CIPHER_SUPPORTED, 0))
continue;
if (!s->method->put_cipher_by_char(c, pkt, &len)) {
- SSLerr(SSL_F_SSL_CIPHER_LIST_TO_BYTES, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CIPHER_LIST_TO_BYTES,
+ ERR_R_INTERNAL_ERROR);
return 0;
}
+ /* Sanity check that the maximum version we offer has ciphers enabled */
+ if (!maxverok) {
+ if (SSL_IS_DTLS(s)) {
+ if (DTLS_VERSION_GE(c->max_dtls, s->s3->tmp.max_ver)
+ && DTLS_VERSION_LE(c->min_dtls, s->s3->tmp.max_ver))
+ maxverok = 1;
+ } else {
+ if (c->max_tls >= s->s3->tmp.max_ver
+ && c->min_tls <= s->s3->tmp.max_ver)
+ maxverok = 1;
+ }
+ }
+
totlen += len;
}
- if (totlen == 0) {
- SSLerr(SSL_F_SSL_CIPHER_LIST_TO_BYTES, SSL_R_NO_CIPHERS_AVAILABLE);
+ if (totlen == 0 || !maxverok) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_CIPHER_LIST_TO_BYTES,
+ SSL_R_NO_CIPHERS_AVAILABLE);
+
+ if (!maxverok)
+ ERR_add_error_data(1, "No ciphers enabled for max supported "
+ "SSL/TLS version");
+
return 0;
}
if (totlen != 0) {
if (empty_reneg_info_scsv) {
static SSL_CIPHER scsv = {
- 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ 0, NULL, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
if (!s->method->put_cipher_by_char(&scsv, pkt, &len)) {
- SSLerr(SSL_F_SSL_CIPHER_LIST_TO_BYTES, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_SSL_CIPHER_LIST_TO_BYTES, ERR_R_INTERNAL_ERROR);
return 0;
}
}
if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
static SSL_CIPHER scsv = {
- 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
+ 0, NULL, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
if (!s->method->put_cipher_by_char(&scsv, pkt, &len)) {
- SSLerr(SSL_F_SSL_CIPHER_LIST_TO_BYTES, ERR_R_INTERNAL_ERROR);
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_SSL_CIPHER_LIST_TO_BYTES, ERR_R_INTERNAL_ERROR);
return 0;
}
}
return 1;
}
+
+int tls_construct_end_of_early_data(SSL *s, WPACKET *pkt)
+{
+ if (s->early_data_state != SSL_EARLY_DATA_WRITE_RETRY
+ && s->early_data_state != SSL_EARLY_DATA_FINISHED_WRITING) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_TLS_CONSTRUCT_END_OF_EARLY_DATA,
+ ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+ return 0;
+ }
+
+ s->early_data_state = SSL_EARLY_DATA_FINISHED_WRITING;
+ return 1;
+}
projects / openssl.git / blobdiff