/*
- * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2020 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
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
-#include "../ssl_locl.h"
-#include "statem_locl.h"
-#include "internal/constant_time_locl.h"
+#include "../ssl_local.h"
+#include "statem_local.h"
+#include "internal/constant_time.h"
#include "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
-#include <openssl/hmac.h>
#include <openssl/x509.h>
#include <openssl/dh.h>
#include <openssl/bn.h>
#include <openssl/md5.h>
+#include <openssl/trace.h>
+#include <openssl/core_names.h>
+#include <openssl/asn1t.h>
+
+DEFINE_STACK_OF(X509)
+DEFINE_STACK_OF(SSL_COMP)
+DEFINE_STACK_OF_CONST(SSL_CIPHER)
#define TICKET_NONCE_SIZE 8
+typedef struct {
+ ASN1_TYPE *kxBlob;
+ ASN1_TYPE *opaqueBlob;
+} GOST_KX_MESSAGE;
+
+DECLARE_ASN1_FUNCTIONS(GOST_KX_MESSAGE)
+
+ASN1_SEQUENCE(GOST_KX_MESSAGE) = {
+ ASN1_SIMPLE(GOST_KX_MESSAGE, kxBlob, ASN1_ANY),
+ ASN1_OPT(GOST_KX_MESSAGE, opaqueBlob, ASN1_ANY),
+} ASN1_SEQUENCE_END(GOST_KX_MESSAGE)
+
+IMPLEMENT_ASN1_FUNCTIONS(GOST_KX_MESSAGE)
+
static int tls_construct_encrypted_extensions(SSL *s, WPACKET *pkt);
/*
case TLS_ST_SR_END_OF_EARLY_DATA:
case TLS_ST_SW_FINISHED:
- if (s->s3->tmp.cert_request) {
+ if (s->s3.tmp.cert_request) {
if (mt == SSL3_MT_CERTIFICATE) {
st->hand_state = TLS_ST_SR_CERT;
return 1;
* list if we requested a certificate)
*/
if (mt == SSL3_MT_CLIENT_KEY_EXCHANGE) {
- if (s->s3->tmp.cert_request) {
+ if (s->s3.tmp.cert_request) {
if (s->version == SSL3_VERSION) {
if ((s->verify_mode & SSL_VERIFY_PEER)
&& (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) {
st->hand_state = TLS_ST_SR_KEY_EXCH;
return 1;
}
- } else if (s->s3->tmp.cert_request) {
+ } else if (s->s3.tmp.cert_request) {
if (mt == SSL3_MT_CERTIFICATE) {
st->hand_state = TLS_ST_SR_CERT;
return 1;
case TLS_ST_SR_CHANGE:
#ifndef OPENSSL_NO_NEXTPROTONEG
- if (s->s3->npn_seen) {
+ if (s->s3.npn_seen) {
if (mt == SSL3_MT_NEXT_PROTO) {
st->hand_state = TLS_ST_SR_NEXT_PROTO;
return 1;
*/
static int send_server_key_exchange(SSL *s)
{
- unsigned long alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
+ unsigned long alg_k = s->s3.tmp.new_cipher->algorithm_mkey;
/*
* only send a ServerKeyExchange if DH or fortezza but we have a
* section "Certificate request" in SSL 3 drafts and in
* RFC 2246):
*/
- && (!(s->s3->tmp.new_cipher->algorithm_auth & SSL_aNULL)
+ && (!(s->s3.tmp.new_cipher->algorithm_auth & SSL_aNULL)
/*
* ... except when the application insists on
* verification (against the specs, but statem_clnt.c accepts
*/
|| (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT))
/* don't request certificate for SRP auth */
- && !(s->s3->tmp.new_cipher->algorithm_auth & SSL_aSRP)
+ && !(s->s3.tmp.new_cipher->algorithm_auth & SSL_aSRP)
/*
* With normal PSK Certificates and Certificate Requests
* are omitted
*/
- && !(s->s3->tmp.new_cipher->algorithm_auth & SSL_aPSK)) {
+ && !(s->s3.tmp.new_cipher->algorithm_auth & SSL_aPSK)) {
return 1;
}
st->hand_state = TLS_ST_SW_CERT_REQ;
return WRITE_TRAN_CONTINUE;
}
+ if (s->ext.extra_tickets_expected > 0) {
+ st->hand_state = TLS_ST_SW_SESSION_TICKET;
+ return WRITE_TRAN_CONTINUE;
+ }
/* Try to read from the client instead */
return WRITE_TRAN_FINISHED;
return WRITE_TRAN_CONTINUE;
case TLS_ST_SR_KEY_UPDATE:
- if (s->key_update != SSL_KEY_UPDATE_NONE) {
- st->hand_state = TLS_ST_SW_KEY_UPDATE;
- return WRITE_TRAN_CONTINUE;
- }
- /* Fall through */
-
case TLS_ST_SW_KEY_UPDATE:
st->hand_state = TLS_ST_OK;
return WRITE_TRAN_CONTINUE;
* Following an initial handshake we send the number of tickets we have
* been configured for.
*/
- if (s->hit || s->num_tickets <= s->sent_tickets) {
+ if (!SSL_IS_FIRST_HANDSHAKE(s) && s->ext.extra_tickets_expected > 0) {
+ return WRITE_TRAN_CONTINUE;
+ } else if (s->hit || s->num_tickets <= s->sent_tickets) {
/* We've written enough tickets out. */
st->hand_state = TLS_ST_OK;
}
} else {
/* Check if it is anon DH or anon ECDH, */
/* normal PSK or SRP */
- if (!(s->s3->tmp.new_cipher->algorithm_auth &
+ if (!(s->s3.tmp.new_cipher->algorithm_auth &
(SSL_aNULL | SSL_aSRP | SSL_aPSK))) {
st->hand_state = TLS_ST_SW_CERT;
} else if (send_server_key_exchange(s)) {
return WORK_FINISHED_CONTINUE;
case TLS_ST_SW_SESSION_TICKET:
- if (SSL_IS_TLS13(s) && s->sent_tickets == 0) {
+ if (SSL_IS_TLS13(s) && s->sent_tickets == 0
+ && s->ext.extra_tickets_expected == 0) {
/*
* Actually this is the end of the handshake, but we're going
* straight into writing the session ticket out. So we finish off
* Calls SSLfatal as required.
*/
return tls_finish_handshake(s, wst, 0, 0);
- } if (SSL_IS_DTLS(s)) {
+ }
+ if (SSL_IS_DTLS(s)) {
/*
* We're into the last flight. We don't retransmit the last flight
* unless we need to, so we don't use the timer
case TLS_ST_SW_CHANGE:
if (SSL_IS_TLS13(s))
break;
- s->session->cipher = s->s3->tmp.new_cipher;
+ /* Writes to s->session are only safe for initial handshakes */
+ if (s->session->cipher == NULL) {
+ s->session->cipher = s->s3.tmp.new_cipher;
+ } else if (s->session->cipher != s->s3.tmp.new_cipher) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR,
+ SSL_F_OSSL_STATEM_SERVER_PRE_WORK,
+ ERR_R_INTERNAL_ERROR);
+ return WORK_ERROR;
+ }
if (!s->method->ssl3_enc->setup_key_block(s)) {
/* SSLfatal() already called */
return WORK_ERROR;
case TLS_ST_EARLY_DATA:
if (s->early_data_state != SSL_EARLY_DATA_ACCEPTING
- && (s->s3->flags & TLS1_FLAGS_STATELESS) == 0)
+ && (s->s3.flags & TLS1_FLAGS_STATELESS) == 0)
return WORK_FINISHED_CONTINUE;
/* Fall through */
return WORK_FINISHED_CONTINUE;
}
+static ossl_inline int conn_is_closed(void)
+{
+ switch (get_last_sys_error()) {
+#if defined(EPIPE)
+ case EPIPE:
+ return 1;
+#endif
+#if defined(ECONNRESET)
+ case ECONNRESET:
+ return 1;
+#endif
+#if defined(WSAECONNRESET)
+ case WSAECONNRESET:
+ return 1;
+#endif
+ default:
+ return 0;
+ }
+}
+
/*
* Perform any work that needs to be done after sending a message from the
* server to the client.
if (SSL_IS_DTLS(s) && s->hit) {
unsigned char sctpauthkey[64];
char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
+ size_t labellen;
/*
* Add new shared key for SCTP-Auth, will be ignored if no
memcpy(labelbuffer, DTLS1_SCTP_AUTH_LABEL,
sizeof(DTLS1_SCTP_AUTH_LABEL));
+ /* Don't include the terminating zero. */
+ labellen = sizeof(labelbuffer) - 1;
+ if (s->mode & SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG)
+ labellen += 1;
+
if (SSL_export_keying_material(s, sctpauthkey,
sizeof(sctpauthkey), labelbuffer,
- sizeof(labelbuffer), NULL, 0,
+ labellen, NULL, 0,
0) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_OSSL_STATEM_SERVER_POST_WORK,
return WORK_MORE_A;
break;
}
- /*
- * TODO(TLS1.3): This actually causes a problem. We don't yet know
- * whether the next record we are going to receive is an unencrypted
- * alert, or an encrypted handshake message. We're going to need
- * something clever in the record layer for this.
- */
+
if (SSL_IS_TLS13(s)) {
if (!s->method->ssl3_enc->setup_key_block(s)
|| !s->method->ssl3_enc->change_cipher_state(s,
/* SSLfatal() already called */
return WORK_ERROR;
}
+ /*
+ * We don't yet know whether the next record we are going to receive
+ * is an unencrypted alert, an encrypted alert, or an encrypted
+ * handshake message. We temporarily tolerate unencrypted alerts.
+ */
+ s->statem.enc_read_state = ENC_READ_STATE_ALLOW_PLAIN_ALERTS;
break;
}
}
#endif
if (SSL_IS_TLS13(s)) {
+ /* TLS 1.3 gets the secret size from the handshake md */
+ size_t dummy;
if (!s->method->ssl3_enc->generate_master_secret(s,
s->master_secret, s->handshake_secret, 0,
- &s->session->master_key_length)
+ &dummy)
|| !s->method->ssl3_enc->change_cipher_state(s,
SSL3_CC_APPLICATION | SSL3_CHANGE_CIPHER_SERVER_WRITE))
/* SSLfatal() already called */
break;
case TLS_ST_SW_SESSION_TICKET:
- if (SSL_IS_TLS13(s) && statem_flush(s) != 1)
+ clear_sys_error();
+ if (SSL_IS_TLS13(s) && statem_flush(s) != 1) {
+ if (SSL_get_error(s, 0) == SSL_ERROR_SYSCALL
+ && conn_is_closed()) {
+ /*
+ * We ignore connection closed errors in TLSv1.3 when sending a
+ * NewSessionTicket and behave as if we were successful. This is
+ * so that we are still able to read data sent to us by a client
+ * that closes soon after the end of the handshake without
+ * waiting to read our post-handshake NewSessionTickets.
+ */
+ s->rwstate = SSL_NOTHING;
+ break;
+ }
+
return WORK_MORE_A;
+ }
break;
}
int ret;
int al = SSL_AD_UNRECOGNIZED_NAME;
- if ((s->s3->tmp.new_cipher->algorithm_mkey & SSL_kSRP) &&
+ if ((s->s3.tmp.new_cipher->algorithm_mkey & SSL_kSRP) &&
(s->srp_ctx.TLS_ext_srp_username_callback != NULL)) {
if (s->srp_ctx.login == NULL) {
/*
ext_len = TLS1_get_client_version(s) >= TLS1_2_VERSION ?
sizeof(kSafariExtensionsBlock) : kSafariCommonExtensionsLength;
- s->s3->is_probably_safari = PACKET_equal(&tmppkt, kSafariExtensionsBlock,
+ s->s3.is_probably_safari = PACKET_equal(&tmppkt, kSafariExtensionsBlock,
ext_len);
}
#endif /* !OPENSSL_NO_EC */
goto err;
}
if ((s->options & SSL_OP_NO_RENEGOTIATION) != 0
- || (!s->s3->send_connection_binding
+ || (!s->s3.send_connection_binding
&& (s->options
& SSL_OP_ALLOW_UNSAFE_LEGACY_RENEGOTIATION) == 0)) {
ssl3_send_alert(s, SSL3_AL_WARNING, SSL_AD_NO_RENEGOTIATION);
* So check cookie length...
*/
if (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) {
- if (clienthello->dtls_cookie_len == 0)
+ if (clienthello->dtls_cookie_len == 0) {
+ OPENSSL_free(clienthello);
return MSG_PROCESS_FINISHED_READING;
+ }
}
}
}
/* Set up the client_random */
- memcpy(s->s3->client_random, clienthello->random, SSL3_RANDOM_SIZE);
+ memcpy(s->s3.client_random, clienthello->random, SSL3_RANDOM_SIZE);
/* Choose the version */
goto err;
}
- s->s3->send_connection_binding = 0;
+ s->s3.send_connection_binding = 0;
/* Check what signalling cipher-suite values were received. */
if (scsvs != NULL) {
for(i = 0; i < sk_SSL_CIPHER_num(scsvs); i++) {
SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING);
goto err;
}
- s->s3->send_connection_binding = 1;
+ s->s3.send_connection_binding = 1;
} else if (SSL_CIPHER_get_id(c) == SSL3_CK_FALLBACK_SCSV &&
!ssl_check_version_downgrade(s)) {
/*
goto err;
}
if (s->hello_retry_request == SSL_HRR_PENDING
- && (s->s3->tmp.new_cipher == NULL
- || s->s3->tmp.new_cipher->id != cipher->id)) {
+ && (s->s3.tmp.new_cipher == NULL
+ || s->s3.tmp.new_cipher->id != cipher->id)) {
/*
* A previous HRR picked a different ciphersuite to the one we
* just selected. Something must have changed.
SSL_R_BAD_CIPHER);
goto err;
}
- s->s3->tmp.new_cipher = cipher;
+ s->s3.tmp.new_cipher = cipher;
}
/* We need to do this before getting the session */
j = 0;
id = s->session->cipher->id;
-#ifdef CIPHER_DEBUG
- fprintf(stderr, "client sent %d ciphers\n", sk_SSL_CIPHER_num(ciphers));
-#endif
+ OSSL_TRACE_BEGIN(TLS_CIPHER) {
+ BIO_printf(trc_out, "client sent %d ciphers\n",
+ sk_SSL_CIPHER_num(ciphers));
+ }
for (i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) {
c = sk_SSL_CIPHER_value(ciphers, i);
-#ifdef CIPHER_DEBUG
- fprintf(stderr, "client [%2d of %2d]:%s\n",
- i, sk_SSL_CIPHER_num(ciphers), SSL_CIPHER_get_name(c));
-#endif
+ if (trc_out != NULL)
+ BIO_printf(trc_out, "client [%2d of %2d]:%s\n", i,
+ sk_SSL_CIPHER_num(ciphers), SSL_CIPHER_get_name(c));
if (c->id == id) {
j = 1;
break;
SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER,
SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,
SSL_R_REQUIRED_CIPHER_MISSING);
+ OSSL_TRACE_CANCEL(TLS_CIPHER);
goto err;
}
+ OSSL_TRACE_END(TLS_CIPHER);
}
for (loop = 0; loop < clienthello->compressions_len; loop++) {
*/
{
unsigned char *pos;
- pos = s->s3->server_random;
+ pos = s->s3.server_random;
if (ssl_fill_hello_random(s, 1, pos, SSL3_RANDOM_SIZE, dgrd) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,
&& master_key_length > 0) {
s->session->master_key_length = master_key_length;
s->hit = 1;
- s->session->ciphers = ciphers;
+ s->peer_ciphers = ciphers;
s->session->verify_result = X509_V_OK;
ciphers = NULL;
/* check if some cipher was preferred by call back */
if (pref_cipher == NULL)
- pref_cipher = ssl3_choose_cipher(s, s->session->ciphers,
+ pref_cipher = ssl3_choose_cipher(s, s->peer_ciphers,
SSL_get_ciphers(s));
if (pref_cipher == NULL) {
SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
s->session->cipher = pref_cipher;
sk_SSL_CIPHER_free(s->cipher_list);
- s->cipher_list = sk_SSL_CIPHER_dup(s->session->ciphers);
+ s->cipher_list = sk_SSL_CIPHER_dup(s->peer_ciphers);
sk_SSL_CIPHER_free(s->cipher_list_by_id);
- s->cipher_list_by_id = sk_SSL_CIPHER_dup(s->session->ciphers);
+ s->cipher_list_by_id = sk_SSL_CIPHER_dup(s->peer_ciphers);
}
}
* options, we will now look for them. We have complen-1 compression
* algorithms from the client, starting at q.
*/
- s->s3->tmp.new_compression = NULL;
+ s->s3.tmp.new_compression = NULL;
if (SSL_IS_TLS13(s)) {
/*
* We already checked above that the NULL compression method appears in
for (m = 0; m < sk_SSL_COMP_num(s->ctx->comp_methods); m++) {
comp = sk_SSL_COMP_value(s->ctx->comp_methods, m);
if (comp_id == comp->id) {
- s->s3->tmp.new_compression = comp;
+ s->s3.tmp.new_compression = comp;
break;
}
}
- if (s->s3->tmp.new_compression == NULL) {
+ if (s->s3.tmp.new_compression == NULL) {
SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,
SSL_R_INVALID_COMPRESSION_ALGORITHM);
break;
}
if (done)
- s->s3->tmp.new_compression = comp;
+ s->s3.tmp.new_compression = comp;
else
comp = NULL;
}
#endif
/*
- * Given s->session->ciphers and SSL_get_ciphers, we must pick a cipher
+ * Given s->peer_ciphers and SSL_get_ciphers, we must pick a cipher
*/
if (!s->hit || SSL_IS_TLS13(s)) {
- sk_SSL_CIPHER_free(s->session->ciphers);
- s->session->ciphers = ciphers;
+ sk_SSL_CIPHER_free(s->peer_ciphers);
+ s->peer_ciphers = ciphers;
if (ciphers == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_EARLY_POST_PROCESS_CLIENT_HELLO,
int ret;
/* If no certificate can't return certificate status */
- if (s->s3->tmp.cert != NULL) {
+ if (s->s3.tmp.cert != NULL) {
/*
* Set current certificate to one we will use so SSL_get_certificate
* et al can pick it up.
*/
- s->cert->key = s->s3->tmp.cert;
+ s->cert->key = s->s3.tmp.cert;
ret = s->ctx->ext.status_cb(s, s->ctx->ext.status_arg);
switch (ret) {
/* We don't want to send a status request response */
const unsigned char *selected = NULL;
unsigned char selected_len = 0;
- if (s->ctx->ext.alpn_select_cb != NULL && s->s3->alpn_proposed != NULL) {
+ if (s->ctx->ext.alpn_select_cb != NULL && s->s3.alpn_proposed != NULL) {
int r = s->ctx->ext.alpn_select_cb(s, &selected, &selected_len,
- s->s3->alpn_proposed,
- (unsigned int)s->s3->alpn_proposed_len,
+ s->s3.alpn_proposed,
+ (unsigned int)s->s3.alpn_proposed_len,
s->ctx->ext.alpn_select_cb_arg);
if (r == SSL_TLSEXT_ERR_OK) {
- OPENSSL_free(s->s3->alpn_selected);
- s->s3->alpn_selected = OPENSSL_memdup(selected, selected_len);
- if (s->s3->alpn_selected == NULL) {
+ OPENSSL_free(s->s3.alpn_selected);
+ s->s3.alpn_selected = OPENSSL_memdup(selected, selected_len);
+ if (s->s3.alpn_selected == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_HANDLE_ALPN,
ERR_R_INTERNAL_ERROR);
return 0;
}
- s->s3->alpn_selected_len = selected_len;
+ s->s3.alpn_selected_len = selected_len;
#ifndef OPENSSL_NO_NEXTPROTONEG
/* ALPN takes precedence over NPN. */
- s->s3->npn_seen = 0;
+ s->s3.npn_seen = 0;
#endif
/* Check ALPN is consistent with session */
/* In TLSv1.3 we selected the ciphersuite before resumption */
if (!SSL_IS_TLS13(s)) {
cipher =
- ssl3_choose_cipher(s, s->session->ciphers, SSL_get_ciphers(s));
+ ssl3_choose_cipher(s, s->peer_ciphers, SSL_get_ciphers(s));
if (cipher == NULL) {
SSLfatal(s, SSL_AD_HANDSHAKE_FAILURE,
SSL_R_NO_SHARED_CIPHER);
goto err;
}
- s->s3->tmp.new_cipher = cipher;
+ s->s3.tmp.new_cipher = cipher;
}
if (!s->hit) {
if (!tls_choose_sigalg(s, 1)) {
if (s->not_resumable_session_cb != NULL)
s->session->not_resumable =
s->not_resumable_session_cb(s,
- ((s->s3->tmp.new_cipher->algorithm_mkey
+ ((s->s3.tmp.new_cipher->algorithm_mkey
& (SSL_kDHE | SSL_kECDHE)) != 0));
if (s->session->not_resumable)
/* do not send a session ticket */
}
} else {
/* Session-id reuse */
- s->s3->tmp.new_cipher = s->session->cipher;
+ s->s3.tmp.new_cipher = s->session->cipher;
}
/*-
* ssl version is set - sslv3
* s->session - The ssl session has been setup.
* s->hit - session reuse flag
- * s->s3->tmp.new_cipher- the new cipher to use.
+ * s->s3.tmp.new_cipher - the new cipher to use.
*/
/*
*/
|| !WPACKET_memcpy(pkt,
s->hello_retry_request == SSL_HRR_PENDING
- ? hrrrandom : s->s3->server_random,
+ ? hrrrandom : s->s3.server_random,
SSL3_RANDOM_SIZE)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_SERVER_HELLO,
ERR_R_INTERNAL_ERROR);
#ifdef OPENSSL_NO_COMP
compm = 0;
#else
- if (usetls13 || s->s3->tmp.new_compression == NULL)
+ if (usetls13 || s->s3.tmp.new_compression == NULL)
compm = 0;
else
- compm = s->s3->tmp.new_compression->id;
+ compm = s->s3.tmp.new_compression->id;
#endif
if (!WPACKET_sub_memcpy_u8(pkt, session_id, sl)
- || !s->method->put_cipher_by_char(s->s3->tmp.new_cipher, pkt, &len)
- || !WPACKET_put_bytes_u8(pkt, compm)
- || !tls_construct_extensions(s, pkt,
- s->hello_retry_request
- == SSL_HRR_PENDING
- ? SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST
- : (SSL_IS_TLS13(s)
- ? SSL_EXT_TLS1_3_SERVER_HELLO
- : SSL_EXT_TLS1_2_SERVER_HELLO),
- NULL, 0)) {
+ || !s->method->put_cipher_by_char(s->s3.tmp.new_cipher, pkt, &len)
+ || !WPACKET_put_bytes_u8(pkt, compm)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_SERVER_HELLO,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+
+ if (!tls_construct_extensions(s, pkt,
+ s->hello_retry_request == SSL_HRR_PENDING
+ ? SSL_EXT_TLS1_3_HELLO_RETRY_REQUEST
+ : (SSL_IS_TLS13(s)
+ ? SSL_EXT_TLS1_3_SERVER_HELLO
+ : SSL_EXT_TLS1_2_SERVER_HELLO),
+ NULL, 0)) {
/* SSLfatal() already called */
return 0;
}
int tls_construct_server_done(SSL *s, WPACKET *pkt)
{
- if (!s->s3->tmp.cert_request) {
+ if (!s->s3.tmp.cert_request) {
if (!ssl3_digest_cached_records(s, 0)) {
/* SSLfatal() already called */
return 0;
size_t encodedlen = 0;
int curve_id = 0;
#endif
- const SIGALG_LOOKUP *lu = s->s3->tmp.sigalg;
+ const SIGALG_LOOKUP *lu = s->s3.tmp.sigalg;
int i;
unsigned long type;
const BIGNUM *r[4];
goto err;
}
- type = s->s3->tmp.new_cipher->algorithm_mkey;
+ type = s->s3.tmp.new_cipher->algorithm_mkey;
r[0] = r[1] = r[2] = r[3] = NULL;
#ifndef OPENSSL_NO_PSK
SSL_R_DH_KEY_TOO_SMALL);
goto err;
}
- if (s->s3->tmp.pkey != NULL) {
+ if (s->s3.tmp.pkey != NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
- s->s3->tmp.pkey = ssl_generate_pkey(pkdhp);
- if (s->s3->tmp.pkey == NULL) {
+ s->s3.tmp.pkey = ssl_generate_pkey(s, pkdhp);
+ if (s->s3.tmp.pkey == NULL) {
/* SSLfatal() already called */
goto err;
}
- dh = EVP_PKEY_get0_DH(s->s3->tmp.pkey);
+ dh = EVP_PKEY_get0_DH(s->s3.tmp.pkey);
if (dh == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE,
#ifndef OPENSSL_NO_EC
if (type & (SSL_kECDHE | SSL_kECDHEPSK)) {
- if (s->s3->tmp.pkey != NULL) {
+ if (s->s3.tmp.pkey != NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
goto err;
}
- s->s3->tmp.pkey = ssl_generate_pkey_group(s, curve_id);
+ s->s3.tmp.pkey = ssl_generate_pkey_group(s, curve_id);
/* Generate a new key for this curve */
- if (s->s3->tmp.pkey == NULL) {
+ if (s->s3.tmp.pkey == NULL) {
/* SSLfatal() already called */
goto err;
}
/* Encode the public key. */
- encodedlen = EVP_PKEY_get1_tls_encodedpoint(s->s3->tmp.pkey,
+ encodedlen = EVP_PKEY_get1_tls_encodedpoint(s->s3.tmp.pkey,
&encodedPoint);
if (encodedlen == 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
goto err;
}
- if (((s->s3->tmp.new_cipher->algorithm_auth & (SSL_aNULL | SSL_aSRP)) != 0)
- || ((s->s3->tmp.new_cipher->algorithm_mkey & SSL_PSK)) != 0) {
+ if (((s->s3.tmp.new_cipher->algorithm_auth & (SSL_aNULL | SSL_aSRP)) != 0)
+ || ((s->s3.tmp.new_cipher->algorithm_mkey & SSL_PSK)) != 0) {
lu = NULL;
} else if (lu == NULL) {
SSLfatal(s, SSL_AD_DECODE_ERROR,
/* not anonymous */
if (lu != NULL) {
- EVP_PKEY *pkey = s->s3->tmp.cert->privatekey;
+ EVP_PKEY *pkey = s->s3.tmp.cert->privatekey;
const EVP_MD *md;
unsigned char *sigbytes1, *sigbytes2, *tbs;
- size_t siglen, tbslen;
- int rv;
+ size_t siglen = 0, tbslen;
- if (pkey == NULL || !tls1_lookup_md(lu, &md)) {
+ if (pkey == NULL || !tls1_lookup_md(s->ctx, lu, &md)) {
/* Should never happen */
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
- /*
- * Create the signature. We don't know the actual length of the sig
- * until after we've created it, so we reserve enough bytes for it
- * up front, and then properly allocate them in the WPACKET
- * afterwards.
- */
- siglen = EVP_PKEY_size(pkey);
- if (!WPACKET_sub_reserve_bytes_u16(pkt, siglen, &sigbytes1)
- || EVP_DigestSignInit(md_ctx, &pctx, md, NULL, pkey) <= 0) {
+
+ if (EVP_DigestSignInit_ex(md_ctx, &pctx,
+ md == NULL ? NULL : EVP_MD_name(md),
+ s->ctx->propq, pkey, s->ctx->libctx) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
/* SSLfatal() already called */
goto err;
}
- rv = EVP_DigestSign(md_ctx, sigbytes1, &siglen, tbs, tbslen);
- OPENSSL_free(tbs);
- if (rv <= 0 || !WPACKET_sub_allocate_bytes_u16(pkt, siglen, &sigbytes2)
- || sigbytes1 != sigbytes2) {
+
+ if (EVP_DigestSign(md_ctx, NULL, &siglen, tbs, tbslen) <=0
+ || !WPACKET_sub_reserve_bytes_u16(pkt, siglen, &sigbytes1)
+ || EVP_DigestSign(md_ctx, sigbytes1, &siglen, tbs, tbslen) <= 0
+ || !WPACKET_sub_allocate_bytes_u16(pkt, siglen, &sigbytes2)
+ || sigbytes1 != sigbytes2) {
+ OPENSSL_free(tbs);
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_SERVER_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
goto err;
}
+ OPENSSL_free(tbs);
}
EVP_MD_CTX_free(md_ctx);
OPENSSL_free(s->pha_context);
s->pha_context_len = 32;
if ((s->pha_context = OPENSSL_malloc(s->pha_context_len)) == NULL
- || RAND_bytes(s->pha_context, s->pha_context_len) <= 0
+ || RAND_bytes_ex(s->ctx->libctx, s->pha_context,
+ s->pha_context_len) <= 0
|| !WPACKET_sub_memcpy_u8(pkt, s->pha_context, s->pha_context_len)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_CERTIFICATE_REQUEST,
}
}
- if (!construct_ca_names(s, pkt)) {
+ if (!construct_ca_names(s, get_ca_names(s), pkt)) {
/* SSLfatal() already called */
return 0;
}
done:
s->certreqs_sent++;
- s->s3->tmp.cert_request = 1;
+ s->s3.tmp.cert_request = 1;
return 1;
}
return 0;
}
- OPENSSL_free(s->s3->tmp.psk);
- s->s3->tmp.psk = OPENSSL_memdup(psk, psklen);
+ OPENSSL_free(s->s3.tmp.psk);
+ s->s3.tmp.psk = OPENSSL_memdup(psk, psklen);
OPENSSL_cleanse(psk, psklen);
- if (s->s3->tmp.psk == NULL) {
+ if (s->s3.tmp.psk == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_PROCESS_CKE_PSK_PREAMBLE, ERR_R_MALLOC_FAILURE);
return 0;
}
- s->s3->tmp.psklen = psklen;
+ s->s3.tmp.psklen = psklen;
return 1;
#else
static int tls_process_cke_rsa(SSL *s, PACKET *pkt)
{
#ifndef OPENSSL_NO_RSA
- unsigned char rand_premaster_secret[SSL_MAX_MASTER_KEY_LENGTH];
- int decrypt_len;
- unsigned char decrypt_good, version_good;
- size_t j, padding_len;
+ size_t outlen;
PACKET enc_premaster;
- RSA *rsa = NULL;
+ EVP_PKEY *rsa = NULL;
unsigned char *rsa_decrypt = NULL;
int ret = 0;
+ EVP_PKEY_CTX *ctx = NULL;
+ OSSL_PARAM params[3], *p = params;
- rsa = EVP_PKEY_get0_RSA(s->cert->pkeys[SSL_PKEY_RSA].privatekey);
+ rsa = s->cert->pkeys[SSL_PKEY_RSA].privatekey;
if (rsa == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_RSA,
SSL_R_MISSING_RSA_CERTIFICATE);
}
}
- /*
- * We want to be sure that the plaintext buffer size makes it safe to
- * iterate over the entire size of a premaster secret
- * (SSL_MAX_MASTER_KEY_LENGTH). Reject overly short RSA keys because
- * their ciphertext cannot accommodate a premaster secret anyway.
- */
- if (RSA_size(rsa) < SSL_MAX_MASTER_KEY_LENGTH) {
- SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_RSA,
- RSA_R_KEY_SIZE_TOO_SMALL);
- return 0;
- }
-
- rsa_decrypt = OPENSSL_malloc(RSA_size(rsa));
+ outlen = SSL_MAX_MASTER_KEY_LENGTH;
+ rsa_decrypt = OPENSSL_malloc(outlen);
if (rsa_decrypt == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_RSA,
ERR_R_MALLOC_FAILURE);
return 0;
}
- /*
- * We must not leak whether a decryption failure occurs because of
- * Bleichenbacher's attack on PKCS #1 v1.5 RSA padding (see RFC 2246,
- * section 7.4.7.1). The code follows that advice of the TLS RFC and
- * generates a random premaster secret for the case that the decrypt
- * fails. See https://tools.ietf.org/html/rfc5246#section-7.4.7.1
- */
-
- if (RAND_priv_bytes(rand_premaster_secret,
- sizeof(rand_premaster_secret)) <= 0) {
+ ctx = EVP_PKEY_CTX_new_from_pkey(s->ctx->libctx, rsa, s->ctx->propq);
+ if (ctx == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_RSA,
- ERR_R_INTERNAL_ERROR);
+ ERR_R_MALLOC_FAILURE);
goto err;
}
/*
- * Decrypt with no padding. PKCS#1 padding will be removed as part of
- * the timing-sensitive code below.
+ * We must not leak whether a decryption failure occurs because of
+ * Bleichenbacher's attack on PKCS #1 v1.5 RSA padding (see RFC 2246,
+ * section 7.4.7.1). We use the special padding type
+ * RSA_PKCS1_WITH_TLS_PADDING to do that. It will automaticaly decrypt the
+ * RSA, check the padding and check that the client version is as expected
+ * in the premaster secret. If any of that fails then the function appears
+ * to return successfully but with a random result. The call below could
+ * still fail if the input is publicly invalid.
+ * See https://tools.ietf.org/html/rfc5246#section-7.4.7.1
*/
- /* TODO(size_t): Convert this function */
- decrypt_len = (int)RSA_private_decrypt((int)PACKET_remaining(&enc_premaster),
- PACKET_data(&enc_premaster),
- rsa_decrypt, rsa, RSA_NO_PADDING);
- if (decrypt_len < 0) {
+ if (EVP_PKEY_decrypt_init(ctx) <= 0
+ || EVP_PKEY_CTX_set_rsa_padding(ctx, RSA_PKCS1_WITH_TLS_PADDING) <= 0) {
SSLfatal(s, SSL_AD_DECRYPT_ERROR, SSL_F_TLS_PROCESS_CKE_RSA,
- ERR_R_INTERNAL_ERROR);
+ SSL_R_DECRYPTION_FAILED);
goto err;
}
- /* Check the padding. See RFC 3447, section 7.2.2. */
+ *p++ = OSSL_PARAM_construct_uint(OSSL_ASYM_CIPHER_PARAM_TLS_CLIENT_VERSION,
+ (unsigned int *)&s->client_version);
+ if ((s->options & SSL_OP_TLS_ROLLBACK_BUG) != 0)
+ *p++ = OSSL_PARAM_construct_uint(
+ OSSL_ASYM_CIPHER_PARAM_TLS_NEGOTIATED_VERSION,
+ (unsigned int *)&s->version);
+ *p++ = OSSL_PARAM_construct_end();
- /*
- * The smallest padded premaster is 11 bytes of overhead. Small keys
- * are publicly invalid, so this may return immediately. This ensures
- * PS is at least 8 bytes.
- */
- if (decrypt_len < 11 + SSL_MAX_MASTER_KEY_LENGTH) {
+ if (!EVP_PKEY_CTX_set_params(ctx, params)
+ || EVP_PKEY_decrypt(ctx, rsa_decrypt, &outlen,
+ PACKET_data(&enc_premaster),
+ PACKET_remaining(&enc_premaster)) <= 0) {
SSLfatal(s, SSL_AD_DECRYPT_ERROR, SSL_F_TLS_PROCESS_CKE_RSA,
SSL_R_DECRYPTION_FAILED);
goto err;
}
- padding_len = decrypt_len - SSL_MAX_MASTER_KEY_LENGTH;
- decrypt_good = constant_time_eq_int_8(rsa_decrypt[0], 0) &
- constant_time_eq_int_8(rsa_decrypt[1], 2);
- for (j = 2; j < padding_len - 1; j++) {
- decrypt_good &= ~constant_time_is_zero_8(rsa_decrypt[j]);
- }
- decrypt_good &= constant_time_is_zero_8(rsa_decrypt[padding_len - 1]);
-
- /*
- * If the version in the decrypted pre-master secret is correct then
- * version_good will be 0xff, otherwise it'll be zero. The
- * Klima-Pokorny-Rosa extension of Bleichenbacher's attack
- * (http://eprint.iacr.org/2003/052/) exploits the version number
- * check as a "bad version oracle". Thus version checks are done in
- * constant time and are treated like any other decryption error.
- */
- version_good =
- constant_time_eq_8(rsa_decrypt[padding_len],
- (unsigned)(s->client_version >> 8));
- version_good &=
- constant_time_eq_8(rsa_decrypt[padding_len + 1],
- (unsigned)(s->client_version & 0xff));
-
- /*
- * The premaster secret must contain the same version number as the
- * ClientHello to detect version rollback attacks (strangely, the
- * protocol does not offer such protection for DH ciphersuites).
- * However, buggy clients exist that send the negotiated protocol
- * version instead if the server does not support the requested
- * protocol version. If SSL_OP_TLS_ROLLBACK_BUG is set, tolerate such
- * clients.
- */
- if (s->options & SSL_OP_TLS_ROLLBACK_BUG) {
- unsigned char workaround_good;
- workaround_good = constant_time_eq_8(rsa_decrypt[padding_len],
- (unsigned)(s->version >> 8));
- workaround_good &=
- constant_time_eq_8(rsa_decrypt[padding_len + 1],
- (unsigned)(s->version & 0xff));
- version_good |= workaround_good;
- }
-
- /*
- * Both decryption and version must be good for decrypt_good to
- * remain non-zero (0xff).
- */
- decrypt_good &= version_good;
-
/*
- * Now copy rand_premaster_secret over from p using
- * decrypt_good_mask. If decryption failed, then p does not
- * contain valid plaintext, however, a check above guarantees
- * it is still sufficiently large to read from.
+ * This test should never fail (otherwise we should have failed above) but
+ * we double check anyway.
*/
- for (j = 0; j < sizeof(rand_premaster_secret); j++) {
- rsa_decrypt[padding_len + j] =
- constant_time_select_8(decrypt_good,
- rsa_decrypt[padding_len + j],
- rand_premaster_secret[j]);
+ if (outlen != SSL_MAX_MASTER_KEY_LENGTH) {
+ OPENSSL_cleanse(rsa_decrypt, SSL_MAX_MASTER_KEY_LENGTH);
+ SSLfatal(s, SSL_AD_DECRYPT_ERROR, SSL_F_TLS_PROCESS_CKE_RSA,
+ SSL_R_DECRYPTION_FAILED);
+ goto err;
}
- if (!ssl_generate_master_secret(s, rsa_decrypt + padding_len,
- sizeof(rand_premaster_secret), 0)) {
+ /* Also cleanses rsa_decrypt (on success or failure) */
+ if (!ssl_generate_master_secret(s, rsa_decrypt,
+ SSL_MAX_MASTER_KEY_LENGTH, 0)) {
/* SSLfatal() already called */
goto err;
}
ret = 1;
err:
OPENSSL_free(rsa_decrypt);
+ EVP_PKEY_CTX_free(ctx);
return ret;
#else
/* Should never happen */
SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG);
goto err;
}
- skey = s->s3->tmp.pkey;
+ skey = s->s3.tmp.pkey;
if (skey == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_DHE,
SSL_R_MISSING_TMP_DH_KEY);
ckey = EVP_PKEY_new();
if (ckey == NULL || EVP_PKEY_copy_parameters(ckey, skey) == 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_DHE,
- SSL_R_BN_LIB);
+ SSL_R_COPY_PARAMETERS_FAILED);
goto err;
}
}
ret = 1;
- EVP_PKEY_free(s->s3->tmp.pkey);
- s->s3->tmp.pkey = NULL;
+ EVP_PKEY_free(s->s3.tmp.pkey);
+ s->s3.tmp.pkey = NULL;
err:
EVP_PKEY_free(ckey);
return ret;
static int tls_process_cke_ecdhe(SSL *s, PACKET *pkt)
{
#ifndef OPENSSL_NO_EC
- EVP_PKEY *skey = s->s3->tmp.pkey;
+ EVP_PKEY *skey = s->s3.tmp.pkey;
EVP_PKEY *ckey = NULL;
int ret = 0;
SSL_R_LENGTH_MISMATCH);
goto err;
}
+ if (skey == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_ECDHE,
+ SSL_R_MISSING_TMP_ECDH_KEY);
+ goto err;
+ }
+
ckey = EVP_PKEY_new();
if (ckey == NULL || EVP_PKEY_copy_parameters(ckey, skey) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_ECDHE,
- ERR_R_EVP_LIB);
+ SSL_R_COPY_PARAMETERS_FAILED);
goto err;
}
+
if (EVP_PKEY_set1_tls_encodedpoint(ckey, data, i) == 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_ECDHE,
ERR_R_EC_LIB);
}
ret = 1;
- EVP_PKEY_free(s->s3->tmp.pkey);
- s->s3->tmp.pkey = NULL;
+ EVP_PKEY_free(s->s3.tmp.pkey);
+ s->s3.tmp.pkey = NULL;
err:
EVP_PKEY_free(ckey);
const unsigned char *start;
size_t outlen = 32, inlen;
unsigned long alg_a;
- unsigned int asn1id, asn1len;
+ GOST_KX_MESSAGE *pKX = NULL;
+ const unsigned char *ptr;
int ret = 0;
- PACKET encdata;
/* Get our certificate private key */
- alg_a = s->s3->tmp.new_cipher->algorithm_auth;
+ alg_a = s->s3.tmp.new_cipher->algorithm_auth;
if (alg_a & SSL_aGOST12) {
/*
* New GOST ciphersuites have SSL_aGOST01 bit too
pk = s->cert->pkeys[SSL_PKEY_GOST01].privatekey;
}
- pkey_ctx = EVP_PKEY_CTX_new(pk, NULL);
+ pkey_ctx = EVP_PKEY_CTX_new_from_pkey(s->ctx->libctx, pk, s->ctx->propq);
if (pkey_ctx == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
ERR_R_MALLOC_FAILURE);
if (EVP_PKEY_derive_set_peer(pkey_ctx, client_pub_pkey) <= 0)
ERR_clear_error();
}
- /* Decrypt session key */
- if (!PACKET_get_1(pkt, &asn1id)
- || asn1id != (V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED)
- || !PACKET_peek_1(pkt, &asn1len)) {
- SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
- SSL_R_DECRYPTION_FAILED);
- goto err;
+
+ ptr = PACKET_data(pkt);
+ /* Some implementations provide extra data in the opaqueBlob
+ * We have nothing to do with this blob so we just skip it */
+ pKX = d2i_GOST_KX_MESSAGE(NULL, &ptr, PACKET_remaining(pkt));
+ if (pKX == NULL
+ || pKX->kxBlob == NULL
+ || ASN1_TYPE_get(pKX->kxBlob) != V_ASN1_SEQUENCE) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
+ SSL_R_DECRYPTION_FAILED);
+ goto err;
}
- if (asn1len == 0x81) {
- /*
- * Long form length. Should only be one byte of length. Anything else
- * isn't supported.
- * We did a successful peek before so this shouldn't fail
- */
- if (!PACKET_forward(pkt, 1)) {
- SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
- SSL_R_DECRYPTION_FAILED);
- goto err;
- }
- } else if (asn1len >= 0x80) {
- /*
- * Indefinite length, or more than one long form length bytes. We don't
- * support it
- */
- SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
+
+ if (!PACKET_forward(pkt, ptr - PACKET_data(pkt))) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
SSL_R_DECRYPTION_FAILED);
goto err;
- } /* else short form length */
+ }
- if (!PACKET_as_length_prefixed_1(pkt, &encdata)) {
- SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
+ if (PACKET_remaining(pkt) != 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST,
SSL_R_DECRYPTION_FAILED);
goto err;
}
- inlen = PACKET_remaining(&encdata);
- start = PACKET_data(&encdata);
+
+ inlen = pKX->kxBlob->value.sequence->length;
+ start = pKX->kxBlob->value.sequence->data;
if (EVP_PKEY_decrypt(pkey_ctx, premaster_secret, &outlen, start,
inlen) <= 0) {
ret = 1;
err:
EVP_PKEY_CTX_free(pkey_ctx);
+ GOST_KX_MESSAGE_free(pKX);
return ret;
#else
/* Should never happen */
#endif
}
+static int tls_process_cke_gost18(SSL *s, PACKET *pkt)
+{
+#ifndef OPENSSL_NO_GOST
+ unsigned char rnd_dgst[32];
+ EVP_PKEY_CTX *pkey_ctx = NULL;
+ EVP_PKEY *pk = NULL;
+ unsigned char premaster_secret[32];
+ const unsigned char *start = NULL;
+ size_t outlen = 32, inlen = 0;
+ int ret = 0;
+ int cipher_nid = gost18_cke_cipher_nid(s);
+
+ if (cipher_nid == NID_undef) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST18,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
+
+ if (gost_ukm(s, rnd_dgst) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_CONSTRUCT_CKE_GOST18,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ /* Get our certificate private key */
+ pk = s->cert->pkeys[SSL_PKEY_GOST12_512].privatekey != NULL ?
+ s->cert->pkeys[SSL_PKEY_GOST12_512].privatekey :
+ s->cert->pkeys[SSL_PKEY_GOST12_256].privatekey;
+ if (pk == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST18,
+ SSL_R_BAD_HANDSHAKE_STATE);
+ goto err;
+ }
+
+ pkey_ctx = EVP_PKEY_CTX_new_from_pkey(s->ctx->libctx, pk, s->ctx->propq);
+ if (pkey_ctx == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST18,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (EVP_PKEY_decrypt_init(pkey_ctx) <= 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST18,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ /* Reuse EVP_PKEY_CTRL_SET_IV, make choice in engine code depending on size */
+ if (EVP_PKEY_CTX_ctrl(pkey_ctx, -1, EVP_PKEY_OP_DECRYPT,
+ EVP_PKEY_CTRL_SET_IV, 32, rnd_dgst) < 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST18,
+ SSL_R_LIBRARY_BUG);
+ goto err;
+ }
+
+ if (EVP_PKEY_CTX_ctrl(pkey_ctx, -1, EVP_PKEY_OP_DECRYPT,
+ EVP_PKEY_CTRL_CIPHER, cipher_nid, NULL) < 0) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST18,
+ SSL_R_LIBRARY_BUG);
+ goto err;
+ }
+ inlen = PACKET_remaining(pkt);
+ start = PACKET_data(pkt);
+
+ if (EVP_PKEY_decrypt(pkey_ctx, premaster_secret, &outlen, start, inlen) <= 0) {
+ SSLfatal(s, SSL_AD_DECODE_ERROR, SSL_F_TLS_PROCESS_CKE_GOST18,
+ SSL_R_DECRYPTION_FAILED);
+ goto err;
+ }
+ /* Generate master secret */
+ if (!ssl_generate_master_secret(s, premaster_secret,
+ sizeof(premaster_secret), 0)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
+ ret = 1;
+
+ err:
+ EVP_PKEY_CTX_free(pkey_ctx);
+ return ret;
+#else
+ /* Should never happen */
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CKE_GOST18,
+ ERR_R_INTERNAL_ERROR);
+ return 0;
+#endif
+}
+
MSG_PROCESS_RETURN tls_process_client_key_exchange(SSL *s, PACKET *pkt)
{
unsigned long alg_k;
- alg_k = s->s3->tmp.new_cipher->algorithm_mkey;
+ alg_k = s->s3.tmp.new_cipher->algorithm_mkey;
/* For PSK parse and retrieve identity, obtain PSK key */
if ((alg_k & SSL_PSK) && !tls_process_cke_psk_preamble(s, pkt)) {
/* SSLfatal() already called */
goto err;
}
+ } else if (alg_k & SSL_kGOST18) {
+ if (!tls_process_cke_gost18(s, pkt)) {
+ /* SSLfatal() already called */
+ goto err;
+ }
} else {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_PROCESS_CLIENT_KEY_EXCHANGE,
return MSG_PROCESS_CONTINUE_PROCESSING;
err:
#ifndef OPENSSL_NO_PSK
- OPENSSL_clear_free(s->s3->tmp.psk, s->s3->tmp.psklen);
- s->s3->tmp.psk = NULL;
+ OPENSSL_clear_free(s->s3.tmp.psk, s->s3.tmp.psklen);
+ s->s3.tmp.psk = NULL;
#endif
return MSG_PROCESS_ERROR;
}
if (SSL_IS_DTLS(s)) {
unsigned char sctpauthkey[64];
char labelbuffer[sizeof(DTLS1_SCTP_AUTH_LABEL)];
+ size_t labellen;
/*
* Add new shared key for SCTP-Auth, will be ignored if no SCTP
* used.
memcpy(labelbuffer, DTLS1_SCTP_AUTH_LABEL,
sizeof(DTLS1_SCTP_AUTH_LABEL));
+ /* Don't include the terminating zero. */
+ labellen = sizeof(labelbuffer) - 1;
+ if (s->mode & SSL_MODE_DTLS_SCTP_LABEL_LENGTH_BUG)
+ labellen += 1;
+
if (SSL_export_keying_material(s, sctpauthkey,
sizeof(sctpauthkey), labelbuffer,
- sizeof(labelbuffer), NULL, 0,
+ labellen, NULL, 0,
0) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_POST_PROCESS_CLIENT_KEY_EXCHANGE,
}
return WORK_FINISHED_CONTINUE;
} else {
- if (!s->s3->handshake_buffer) {
+ if (!s->s3.handshake_buffer) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_POST_PROCESS_CLIENT_KEY_EXCHANGE,
ERR_R_INTERNAL_ERROR);
size_t chainidx;
SSL_SESSION *new_sess = NULL;
+ /*
+ * To get this far we must have read encrypted data from the client. We no
+ * longer tolerate unencrypted alerts. This value is ignored if less than
+ * TLSv1.3
+ */
+ s->statem.enc_read_state = ENC_READ_STATE_VALID;
+
if ((sk = sk_X509_new_null()) == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE,
ERR_R_MALLOC_FAILURE);
goto err;
}
/* No client certificate so digest cached records */
- if (s->s3->handshake_buffer && !ssl3_digest_cached_records(s, 0)) {
+ if (s->s3.handshake_buffer && !ssl3_digest_cached_records(s, 0)) {
/* SSLfatal() already called */
goto err;
}
*/
if (s->post_handshake_auth == SSL_PHA_REQUESTED) {
- int m = s->session_ctx->session_cache_mode;
-
if ((new_sess = ssl_session_dup(s->session, 0)) == 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_PROCESS_CLIENT_CERTIFICATE,
goto err;
}
- if (m & SSL_SESS_CACHE_SERVER) {
- /*
- * Remove the old session from the cache. We carry on if this fails
- */
- SSL_CTX_remove_session(s->session_ctx, s->session);
- }
-
SSL_SESSION_free(s->session);
s->session = new_sess;
}
int tls_construct_server_certificate(SSL *s, WPACKET *pkt)
{
- CERT_PKEY *cpk = s->s3->tmp.cert;
+ CERT_PKEY *cpk = s->s3.tmp.cert;
if (cpk == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
{
unsigned char *senc = NULL;
EVP_CIPHER_CTX *ctx = NULL;
- HMAC_CTX *hctx = NULL;
+ SSL_HMAC *hctx = NULL;
unsigned char *p, *encdata1, *encdata2, *macdata1, *macdata2;
const unsigned char *const_p;
int len, slen_full, slen, lenfinal;
SSL_SESSION *sess;
- unsigned int hlen;
+ size_t hlen;
SSL_CTX *tctx = s->session_ctx;
unsigned char iv[EVP_MAX_IV_LENGTH];
unsigned char key_name[TLSEXT_KEYNAME_LENGTH];
}
ctx = EVP_CIPHER_CTX_new();
- hctx = HMAC_CTX_new();
+ hctx = ssl_hmac_new(tctx);
if (ctx == NULL || hctx == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_CONSTRUCT_STATELESS_TICKET,
ERR_R_MALLOC_FAILURE);
* Initialize HMAC and cipher contexts. If callback present it does
* all the work otherwise use generated values from parent ctx.
*/
- if (tctx->ext.ticket_key_cb) {
- /* if 0 is returned, write an empty ticket */
- int ret = tctx->ext.ticket_key_cb(s, key_name, iv, ctx,
- hctx, 1);
+#ifndef OPENSSL_NO_DEPRECATED_3_0
+ if (tctx->ext.ticket_key_evp_cb != NULL || tctx->ext.ticket_key_cb != NULL)
+#else
+ if (tctx->ext.ticket_key_evp_cb != NULL)
+#endif
+ {
+ int ret = 0;
+
+ if (tctx->ext.ticket_key_evp_cb != NULL)
+ ret = tctx->ext.ticket_key_evp_cb(s, key_name, iv, ctx,
+ ssl_hmac_get0_EVP_MAC_CTX(hctx),
+ 1);
+#ifndef OPENSSL_NO_DEPRECATED_3_0
+ else if (tctx->ext.ticket_key_cb != NULL)
+ /* if 0 is returned, write an empty ticket */
+ ret = tctx->ext.ticket_key_cb(s, key_name, iv, ctx,
+ ssl_hmac_get0_HMAC_CTX(hctx), 1);
+#endif
if (ret == 0) {
}
OPENSSL_free(senc);
EVP_CIPHER_CTX_free(ctx);
- HMAC_CTX_free(hctx);
+ ssl_hmac_free(hctx);
return 1;
}
if (ret < 0) {
}
iv_len = EVP_CIPHER_CTX_iv_length(ctx);
} else {
- const EVP_CIPHER *cipher = EVP_aes_256_cbc();
+ EVP_CIPHER *cipher = EVP_CIPHER_fetch(s->ctx->libctx, "AES-256-CBC",
+ s->ctx->propq);
+
+ if (cipher == NULL) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_CONSTRUCT_STATELESS_TICKET,
+ SSL_R_ALGORITHM_FETCH_FAILED);
+ goto err;
+ }
iv_len = EVP_CIPHER_iv_length(cipher);
- if (RAND_bytes(iv, iv_len) <= 0
+ if (RAND_bytes_ex(s->ctx->libctx, iv, iv_len) <= 0
|| !EVP_EncryptInit_ex(ctx, cipher, NULL,
tctx->ext.secure->tick_aes_key, iv)
- || !HMAC_Init_ex(hctx, tctx->ext.secure->tick_hmac_key,
- sizeof(tctx->ext.secure->tick_hmac_key),
- EVP_sha256(), NULL)) {
+ || !ssl_hmac_init(hctx, tctx->ext.secure->tick_hmac_key,
+ sizeof(tctx->ext.secure->tick_hmac_key),
+ "SHA256")) {
+ EVP_CIPHER_free(cipher);
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_CONSTRUCT_STATELESS_TICKET,
ERR_R_INTERNAL_ERROR);
goto err;
}
+ EVP_CIPHER_free(cipher);
memcpy(key_name, tctx->ext.tick_key_name,
sizeof(tctx->ext.tick_key_name));
}
|| encdata1 + len != encdata2
|| len + lenfinal > slen + EVP_MAX_BLOCK_LENGTH
|| !WPACKET_get_total_written(pkt, &macendoffset)
- || !HMAC_Update(hctx,
- (unsigned char *)s->init_buf->data + macoffset,
- macendoffset - macoffset)
+ || !ssl_hmac_update(hctx,
+ (unsigned char *)s->init_buf->data + macoffset,
+ macendoffset - macoffset)
|| !WPACKET_reserve_bytes(pkt, EVP_MAX_MD_SIZE, &macdata1)
- || !HMAC_Final(hctx, macdata1, &hlen)
+ || !ssl_hmac_final(hctx, macdata1, &hlen, EVP_MAX_MD_SIZE)
|| hlen > EVP_MAX_MD_SIZE
|| !WPACKET_allocate_bytes(pkt, hlen, &macdata2)
|| macdata1 != macdata2) {
err:
OPENSSL_free(senc);
EVP_CIPHER_CTX_free(ctx);
- HMAC_CTX_free(hctx);
+ ssl_hmac_free(hctx);
return ok;
}
uint64_t nonce;
static const unsigned char nonce_label[] = "resumption";
const EVP_MD *md = ssl_handshake_md(s);
- void (*cb) (const SSL *ssl, int type, int val) = NULL;
int hashleni = EVP_MD_size(md);
/* Ensure cast to size_t is safe */
}
hashlen = (size_t)hashleni;
- if (s->info_callback != NULL)
- cb = s->info_callback;
- else if (s->ctx->info_callback != NULL)
- cb = s->ctx->info_callback;
-
- if (cb != NULL) {
- /*
- * We don't start and stop the handshake in between each ticket when
- * sending more than one - but it should appear that way to the info
- * callback.
- */
- if (s->sent_tickets != 0) {
- ossl_statem_set_in_init(s, 0);
- cb(s, SSL_CB_HANDSHAKE_DONE, 1);
- ossl_statem_set_in_init(s, 1);
- }
- cb(s, SSL_CB_HANDSHAKE_START, 1);
- }
/*
* If we already sent one NewSessionTicket, or we resumed then
* s->session may already be in a cache and so we must not modify it.
/* SSLfatal() already called */
goto err;
}
- if (RAND_bytes(age_add_u.age_add_c, sizeof(age_add_u)) <= 0) {
+ if (RAND_bytes_ex(s->ctx->libctx, age_add_u.age_add_c,
+ sizeof(age_add_u)) <= 0) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_NEW_SESSION_TICKET,
ERR_R_INTERNAL_ERROR);
tick_nonce,
TICKET_NONCE_SIZE,
s->session->master_key,
- hashlen)) {
+ hashlen, 1)) {
/* SSLfatal() already called */
goto err;
}
s->session->master_key_length = hashlen;
s->session->time = (long)time(NULL);
- if (s->s3->alpn_selected != NULL) {
+ if (s->s3.alpn_selected != NULL) {
OPENSSL_free(s->session->ext.alpn_selected);
s->session->ext.alpn_selected =
- OPENSSL_memdup(s->s3->alpn_selected, s->s3->alpn_selected_len);
+ OPENSSL_memdup(s->s3.alpn_selected, s->s3.alpn_selected_len);
if (s->session->ext.alpn_selected == NULL) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR,
SSL_F_TLS_CONSTRUCT_NEW_SESSION_TICKET,
ERR_R_MALLOC_FAILURE);
goto err;
}
- s->session->ext.alpn_selected_len = s->s3->alpn_selected_len;
+ s->session->ext.alpn_selected_len = s->s3.alpn_selected_len;
}
s->session->ext.max_early_data = s->max_early_data;
}
/*
* Increment both |sent_tickets| and |next_ticket_nonce|. |sent_tickets|
* gets reset to 0 if we send more tickets following a post-handshake
- * auth, but |next_ticket_nonce| does not.
+ * auth, but |next_ticket_nonce| does not. If we're sending extra
+ * tickets, decrement the count of pending extra tickets.
*/
s->sent_tickets++;
s->next_ticket_nonce++;
+ if (s->ext.extra_tickets_expected > 0)
+ s->ext.extra_tickets_expected--;
ssl_update_cache(s, SSL_SESS_CACHE_SERVER);
}
projects / openssl.git / blobdiff