/*
* Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include "record_locl.h"
-#include "../packet_locl.h"
+#include "internal/packet.h"
#if defined(OPENSSL_SMALL_FOOTPRINT) || \
!( defined(AES_ASM) && ( \
/*
* If extend == 0, obtain new n-byte packet; if extend == 1, increase
* packet by another n bytes. The packet will be in the sub-array of
- * s->s3->rbuf.buf specified by s->packet and s->packet_length. (If
+ * s->s3.rbuf.buf specified by s->packet and s->packet_length. (If
* s->rlayer.read_ahead is set, 'max' bytes may be stored in rbuf [plus
* s->packet_length bytes if extend == 1].)
* if clearold == 1, move the packet to the start of the buffer; if
return -1;
}
- /* We always act like read_ahead is set for DTLS */
- if (!s->rlayer.read_ahead && !SSL_IS_DTLS(s))
+ /*
+ * Ktls always reads full records.
+ * Also, we always act like read_ahead is set for DTLS.
+ */
+ if (!BIO_get_ktls_recv(s->rbio) && !s->rlayer.read_ahead
+ && !SSL_IS_DTLS(s)) {
/* ignore max parameter */
max = n;
- else {
+ } else {
if (max < n)
max = n;
if (max > rb->len - rb->offset)
int ret;
/*
- * Now we have len+left bytes at the front of s->s3->rbuf.buf and
+ * Now we have len+left bytes at the front of s->s3.rbuf.buf and
* need to read in more until we have len+n (up to len+max if
* possible)
*/
s->rlayer.wnum = 0;
+ /*
+ * If we are supposed to be sending a KeyUpdate then go into init unless we
+ * have writes pending - in which case we should finish doing that first.
+ */
+ if (wb->left == 0 && s->key_update != SSL_KEY_UPDATE_NONE)
+ ossl_statem_set_in_init(s, 1);
+
/*
* When writing early data on the server side we could be "in_init" in
* between receiving the EoED and the CF - but we don't want to handle those
break;
}
- if (s->s3->alert_dispatch) {
+ if (s->s3.alert_dispatch) {
i = s->method->ssl_dispatch_alert(s);
if (i <= 0) {
/* SSLfatal() already called if appropriate */
* next chunk of data should get another prepended empty fragment
* in ciphersuites with known-IV weakness:
*/
- s->s3->empty_fragment_done = 0;
+ s->s3.empty_fragment_done = 0;
if ((i == (int)n) && s->mode & SSL_MODE_RELEASE_BUFFERS &&
!SSL_IS_DTLS(s))
}
/* If we have an alert to send, lets send it */
- if (s->s3->alert_dispatch) {
+ if (s->s3.alert_dispatch) {
i = s->method->ssl_dispatch_alert(s);
if (i <= 0) {
/* SSLfatal() already called if appropriate */
/*
* 'create_empty_fragment' is true only when this function calls itself
*/
- if (!clear && !create_empty_fragment && !s->s3->empty_fragment_done) {
+ if (!clear && !create_empty_fragment && !s->s3.empty_fragment_done) {
/*
* countermeasure against known-IV weakness in CBC ciphersuites (see
* http://www.openssl.org/~bodo/tls-cbc.txt)
*/
- if (s->s3->need_empty_fragments && type == SSL3_RT_APPLICATION_DATA) {
+ if (s->s3.need_empty_fragments && type == SSL3_RT_APPLICATION_DATA) {
/*
* recursive function call with 'create_empty_fragment' set; this
* prepares and buffers the data for an empty fragment (these
}
}
- s->s3->empty_fragment_done = 1;
+ s->s3.empty_fragment_done = 1;
+ }
+
+ if (BIO_get_ktls_send(s->wbio)) {
+ /*
+ * ktls doesn't modify the buffer, but to avoid a warning we need to
+ * discard the const qualifier.
+ * This doesn't leak memory because the buffers have been released when
+ * switching to ktls.
+ */
+ SSL3_BUFFER_set_buf(&s->rlayer.wbuf[0], (unsigned char *)buf);
+ SSL3_BUFFER_set_offset(&s->rlayer.wbuf[0], 0);
+ goto wpacket_init_complete;
}
if (create_empty_fragment) {
}
}
+ wpacket_init_complete:
+
totlen = 0;
/* Clear our SSL3_RECORD structures */
memset(wr, 0, sizeof(wr));
for (j = 0; j < numpipes; j++) {
- unsigned int version = SSL_TREAT_AS_TLS13(s) ? TLS1_2_VERSION
- : s->version;
+ unsigned int version = (s->version == TLS1_3_VERSION) ? TLS1_2_VERSION
+ : s->version;
unsigned char *compressdata = NULL;
size_t maxcomplen;
unsigned int rectype;
* In TLSv1.3, once encrypting, we always use application data for the
* record type
*/
- if (SSL_TREAT_AS_TLS13(s) && s->enc_write_ctx != NULL)
+ if (SSL_TREAT_AS_TLS13(s)
+ && s->enc_write_ctx != NULL
+ && (s->statem.enc_write_state != ENC_WRITE_STATE_WRITE_PLAIN_ALERTS
+ || type != SSL3_RT_ALERT))
rectype = SSL3_RT_APPLICATION_DATA;
else
rectype = type;
if (s->compress != NULL)
maxcomplen += SSL3_RT_MAX_COMPRESSED_OVERHEAD;
- /* write the header */
- if (!WPACKET_put_bytes_u8(thispkt, rectype)
+ /*
+ * When using offload kernel will write the header.
+ * Otherwise write the header now
+ */
+ if (!BIO_get_ktls_send(s->wbio)
+ && (!WPACKET_put_bytes_u8(thispkt, rectype)
|| !WPACKET_put_bytes_u16(thispkt, version)
|| !WPACKET_start_sub_packet_u16(thispkt)
|| (eivlen > 0
&& !WPACKET_allocate_bytes(thispkt, eivlen, NULL))
|| (maxcomplen > 0
&& !WPACKET_reserve_bytes(thispkt, maxcomplen,
- &compressdata))) {
+ &compressdata)))) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_DO_SSL3_WRITE,
ERR_R_INTERNAL_ERROR);
goto err;
goto err;
}
} else {
- if (!WPACKET_memcpy(thispkt, thiswr->input, thiswr->length)) {
- SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_DO_SSL3_WRITE,
- ERR_R_INTERNAL_ERROR);
- goto err;
+ if (BIO_get_ktls_send(s->wbio)) {
+ SSL3_RECORD_reset_data(&wr[j]);
+ } else {
+ if (!WPACKET_memcpy(thispkt, thiswr->input, thiswr->length)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_DO_SSL3_WRITE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+ SSL3_RECORD_reset_input(&wr[j]);
}
- SSL3_RECORD_reset_input(&wr[j]);
}
- if (SSL_TREAT_AS_TLS13(s) && s->enc_write_ctx != NULL) {
+ if (SSL_TREAT_AS_TLS13(s)
+ && s->enc_write_ctx != NULL
+ && (s->statem.enc_write_state != ENC_WRITE_STATE_WRITE_PLAIN_ALERTS
+ || type != SSL3_RT_ALERT)) {
size_t rlen, max_send_fragment;
if (!WPACKET_put_bytes_u8(thispkt, type)) {
* This will be at most one cipher block or the tag length if using
* AEAD. SSL_RT_MAX_CIPHER_BLOCK_SIZE covers either case.
*/
- if (!WPACKET_reserve_bytes(thispkt, SSL_RT_MAX_CIPHER_BLOCK_SIZE,
- NULL)
- /*
- * We also need next the amount of bytes written to this
- * sub-packet
- */
+ if (!BIO_get_ktls_send(s->wbio)) {
+ if (!WPACKET_reserve_bytes(thispkt,
+ SSL_RT_MAX_CIPHER_BLOCK_SIZE,
+ NULL)
+ /*
+ * We also need next the amount of bytes written to this
+ * sub-packet
+ */
|| !WPACKET_get_length(thispkt, &len)) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_DO_SSL3_WRITE,
ERR_R_INTERNAL_ERROR);
goto err;
- }
-
- /* Get a pointer to the start of this record excluding header */
- recordstart = WPACKET_get_curr(thispkt) - len;
+ }
- SSL3_RECORD_set_data(thiswr, recordstart);
- SSL3_RECORD_reset_input(thiswr);
- SSL3_RECORD_set_length(thiswr, len);
+ /* Get a pointer to the start of this record excluding header */
+ recordstart = WPACKET_get_curr(thispkt) - len;
+ SSL3_RECORD_set_data(thiswr, recordstart);
+ SSL3_RECORD_reset_input(thiswr);
+ SSL3_RECORD_set_length(thiswr, len);
+ }
}
- if (s->early_data_state == SSL_EARLY_DATA_WRITING
- || s->early_data_state == SSL_EARLY_DATA_WRITE_RETRY) {
+ if (s->statem.enc_write_state == ENC_WRITE_STATE_WRITE_PLAIN_ALERTS) {
/*
* We haven't actually negotiated the version yet, but we're trying to
* send early data - so we need to use the tls13enc function.
goto err;
}
} else {
- if (s->method->ssl3_enc->enc(s, wr, numpipes, 1) < 1) {
- if (!ossl_statem_in_error(s)) {
- SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_DO_SSL3_WRITE,
- ERR_R_INTERNAL_ERROR);
+ if (!BIO_get_ktls_send(s->wbio)) {
+ if (s->method->ssl3_enc->enc(s, wr, numpipes, 1) < 1) {
+ if (!ossl_statem_in_error(s)) {
+ SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_DO_SSL3_WRITE,
+ ERR_R_INTERNAL_ERROR);
+ }
+ goto err;
}
- goto err;
}
}
thispkt = &pkt[j];
thiswr = &wr[j];
+ if (BIO_get_ktls_send(s->wbio))
+ goto mac_done;
+
/* Allocate bytes for the encryption overhead */
if (!WPACKET_get_length(thispkt, &origlen)
/* Encryption should never shrink the data! */
|| origlen > thiswr->length
|| (thiswr->length > origlen
&& !WPACKET_allocate_bytes(thispkt,
- thiswr->length - origlen, NULL))) {
+ thiswr->length - origlen,
+ NULL))) {
SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_DO_SSL3_WRITE,
ERR_R_INTERNAL_ERROR);
goto err;
goto err;
}
- /*
- * we should now have thiswr->data pointing to the encrypted data, which
- * is thiswr->length long
- */
- SSL3_RECORD_set_type(thiswr, type); /* not needed but helps for
- * debugging */
- SSL3_RECORD_add_length(thiswr, SSL3_RT_HEADER_LENGTH);
+ /* header is added by the kernel when using offload */
+ SSL3_RECORD_add_length(&wr[j], SSL3_RT_HEADER_LENGTH);
if (create_empty_fragment) {
/*
return 1;
}
+ mac_done:
+ /*
+ * we should now have thiswr->data pointing to the encrypted data, which
+ * is thiswr->length long
+ */
+ SSL3_RECORD_set_type(thiswr, type); /* not needed but helps for
+ * debugging */
+
/* now let's set up wb */
SSL3_BUFFER_set_left(&s->rlayer.wbuf[j],
prefix_len + SSL3_RECORD_get_length(thiswr));
return -1;
}
-/* if s->s3->wbuf.left != 0, we need to call this
+/* if s->s3.wbuf.left != 0, we need to call this
*
* Return values are as per SSL_write()
*/
clear_sys_error();
if (s->wbio != NULL) {
s->rwstate = SSL_WRITING;
+
+ /*
+ * To prevent coalescing of control and data messages,
+ * such as in buffer_write, we flush the BIO
+ */
+ if (BIO_get_ktls_send(s->wbio) && type != SSL3_RT_APPLICATION_DATA) {
+ i = BIO_flush(s->wbio);
+ if (i <= 0)
+ return i;
+ }
+
+ if (BIO_get_ktls_send(s->wbio)
+ && type != SSL3_RT_APPLICATION_DATA) {
+ BIO_set_ktls_ctrl_msg(s->wbio, type);
+ }
/* TODO(size_t): Convert this call */
i = BIO_write(s->wbio, (char *)
&(SSL3_BUFFER_get_buf(&wb[currbuf])
} while (num_recs == 0);
rr = &rr[curr_rec];
+ if (s->rlayer.handshake_fragment_len > 0
+ && SSL3_RECORD_get_type(rr) != SSL3_RT_HANDSHAKE
+ && SSL_IS_TLS13(s)) {
+ SSLfatal(s, SSL_AD_UNEXPECTED_MESSAGE, SSL_F_SSL3_READ_BYTES,
+ SSL_R_MIXED_HANDSHAKE_AND_NON_HANDSHAKE_DATA);
+ return -1;
+ }
+
/*
* Reset the count of consecutive warning alerts if we've got a non-empty
* record that isn't an alert.
/* we now have a packet which can be read and processed */
- if (s->s3->change_cipher_spec /* set when we receive ChangeCipherSpec,
- * reset by ssl3_get_finished */
+ if (s->s3.change_cipher_spec /* set when we receive ChangeCipherSpec,
+ * reset by ssl3_get_finished */
&& (SSL3_RECORD_get_type(rr) != SSL3_RT_HANDSHAKE)) {
SSLfatal(s, SSL_AD_UNEXPECTED_MESSAGE, SSL_F_SSL3_READ_BYTES,
SSL_R_DATA_BETWEEN_CCS_AND_FINISHED);
&& (s->server || rr->type != SSL3_RT_ALERT)) {
/*
* If we've got this far and still haven't decided on what version
- * we're using then this must be a client side alert we're dealing with
- * (we don't allow heartbeats yet). We shouldn't be receiving anything
- * other than a ClientHello if we are a server.
+ * we're using then this must be a client side alert we're dealing
+ * with. We shouldn't be receiving anything other than a ClientHello
+ * if we are a server.
*/
s->version = rr->rec_version;
SSLfatal(s, SSL_AD_UNEXPECTED_MESSAGE, SSL_F_SSL3_READ_BYTES,
if (alert_level == SSL3_AL_WARNING
|| (is_tls13 && alert_descr == SSL_AD_USER_CANCELLED)) {
- s->s3->warn_alert = alert_descr;
+ s->s3.warn_alert = alert_descr;
SSL3_RECORD_set_read(rr);
s->rlayer.alert_count++;
char tmp[16];
s->rwstate = SSL_NOTHING;
- s->s3->fatal_alert = alert_descr;
+ s->s3.fatal_alert = alert_descr;
SSLfatal(s, SSL_AD_NO_ALERT, SSL_F_SSL3_READ_BYTES,
SSL_AD_REASON_OFFSET + alert_descr);
BIO_snprintf(tmp, sizeof tmp, "%d", alert_descr);
return -1;
}
- /*
- * If we've sent a close_notify but not yet received one back then ditch
- * anything we read.
- */
if ((s->shutdown & SSL_SENT_SHUTDOWN) != 0) {
- /*
- * In TLSv1.3 this could get problematic if we receive a KeyUpdate
- * message after we sent a close_notify because we're about to ditch it,
- * so we won't be able to read a close_notify sent afterwards! We don't
- * support that.
- */
- SSL3_RECORD_set_length(rr, 0);
- SSL3_RECORD_set_read(rr);
-
if (SSL3_RECORD_get_type(rr) == SSL3_RT_HANDSHAKE) {
BIO *rbio;
- if ((s->mode & SSL_MODE_AUTO_RETRY) != 0)
- goto start;
+ /*
+ * We ignore any handshake messages sent to us unless they are
+ * TLSv1.3 in which case we want to process them. For all other
+ * handshake messages we can't do anything reasonable with them
+ * because we are unable to write any response due to having already
+ * sent close_notify.
+ */
+ if (!SSL_IS_TLS13(s)) {
+ SSL3_RECORD_set_length(rr, 0);
+ SSL3_RECORD_set_read(rr);
+
+ if ((s->mode & SSL_MODE_AUTO_RETRY) != 0)
+ goto start;
- s->rwstate = SSL_READING;
- rbio = SSL_get_rbio(s);
- BIO_clear_retry_flags(rbio);
- BIO_set_retry_read(rbio);
+ s->rwstate = SSL_READING;
+ rbio = SSL_get_rbio(s);
+ BIO_clear_retry_flags(rbio);
+ BIO_set_retry_read(rbio);
+ return -1;
+ }
} else {
/*
* The peer is continuing to send application data, but we have
* above.
* No alert sent because we already sent close_notify
*/
+ SSL3_RECORD_set_length(rr, 0);
+ SSL3_RECORD_set_read(rr);
SSLfatal(s, SSL_AD_NO_ALERT, SSL_F_SSL3_READ_BYTES,
SSL_R_APPLICATION_DATA_AFTER_CLOSE_NOTIFY);
+ return -1;
}
- return -1;
}
/*
* started), we will indulge it.
*/
if (ossl_statem_app_data_allowed(s)) {
- s->s3->in_read_app_data = 2;
+ s->s3.in_read_app_data = 2;
return -1;
} else if (ossl_statem_skip_early_data(s)) {
/*
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