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Fix wrong usage of counter len macro

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Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
This commit is contained in:
Jerry Yu 2021-09-29 17:46:51 +08:00
parent d9a94fe3d0
commit d96a5c2d86
4 changed files with 14 additions and 13 deletions
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2
include/mbedtls/ssl.h
View file

@ -593,7 +593,7 @@ union mbedtls_ssl_premaster_secret
#define MBEDTLS_PREMASTER_SIZE sizeof( union mbedtls_ssl_premaster_secret )
/* Length of in_ctr buffer in mbedtls_ssl_session */
/* Length in number of bytes of the TLS sequence number */
#define MBEDTLS_SSL_COUNTER_LEN 8
#ifdef __cplusplus

14
library/ssl_msg.c
View file

@ -2101,7 +2101,7 @@ void mbedtls_ssl_flight_free( mbedtls_ssl_flight_item *flight )
static int ssl_swap_epochs( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_transform *tmp_transform;
unsigned char tmp_out_ctr[8];
unsigned char tmp_out_ctr[MBEDTLS_SSL_COUNTER_LEN];
if( ssl->transform_out == ssl->handshake->alt_transform_out )
{
@ -2117,9 +2117,11 @@ static int ssl_swap_epochs( mbedtls_ssl_context *ssl )
ssl->handshake->alt_transform_out = tmp_transform;
/* Swap epoch + sequence_number */
memcpy( tmp_out_ctr, ssl->cur_out_ctr, sizeof( ssl->cur_out_ctr ) );
memcpy( ssl->cur_out_ctr, ssl->handshake->alt_out_ctr, sizeof( ssl->cur_out_ctr ) );
memcpy( ssl->handshake->alt_out_ctr, tmp_out_ctr, sizeof( ssl->handshake->alt_out_ctr ) );
memcpy( tmp_out_ctr, ssl->cur_out_ctr, sizeof( tmp_out_ctr ) );
memcpy( ssl->cur_out_ctr, ssl->handshake->alt_out_ctr,
sizeof( ssl->cur_out_ctr ) );
memcpy( ssl->handshake->alt_out_ctr, tmp_out_ctr,
sizeof( ssl->handshake->alt_out_ctr ) );
/* Adjust to the newly activated transform */
mbedtls_ssl_update_out_pointers( ssl, ssl->transform_out );
@ -2562,7 +2564,7 @@ int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush )
mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
ssl->conf->transport, ssl->out_hdr + 1 );
memcpy( ssl->out_ctr, ssl->cur_out_ctr, sizeof( ssl->cur_out_ctr ) );
memcpy( ssl->out_ctr, ssl->cur_out_ctr, MBEDTLS_SSL_COUNTER_LEN );
MBEDTLS_PUT_UINT16_BE( len, ssl->out_len, 0);
if( ssl->transform_out != NULL )
@ -2574,7 +2576,7 @@ int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush )
rec.data_len = ssl->out_msglen;
rec.data_offset = ssl->out_msg - rec.buf;
memcpy( &rec.ctr[0], ssl->out_ctr, MBEDTLS_SSL_COUNTER_LEN );
memcpy( &rec.ctr[0], ssl->out_ctr, sizeof( rec.ctr ) );
mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
ssl->conf->transport, rec.ver );
rec.type = ssl->out_msgtype;

2
library/ssl_srv.c
View file

@ -1221,7 +1221,7 @@ read_record_header:
}
memcpy( &ssl->cur_out_ctr[2], ssl->in_ctr + 2,
MBEDTLS_SSL_COUNTER_LEN - 2 );
sizeof( ssl->cur_out_ctr ) - 2 );
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
if( mbedtls_ssl_dtls_replay_check( ssl ) != 0 )

9
library/ssl_tls.c
View file

@ -2821,7 +2821,7 @@ int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl )
/* Remember current epoch settings for resending */
ssl->handshake->alt_transform_out = ssl->transform_out;
memcpy( ssl->handshake->alt_out_ctr, ssl->cur_out_ctr,
sizeof( ssl->cur_out_ctr ) );
sizeof( ssl->handshake->alt_out_ctr ) );
/* Set sequence_number to zero */
mbedtls_platform_zeroize( &ssl->cur_out_ctr[2],
@ -5778,11 +5778,11 @@ int mbedtls_ssl_context_save( mbedtls_ssl_context *ssl,
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
used += 8;
used += MBEDTLS_SSL_COUNTER_LEN;
if( used <= buf_len )
{
memcpy( p, ssl->cur_out_ctr, sizeof( ssl->cur_out_ctr ) );
p += 8;
memcpy( p, ssl->cur_out_ctr, MBEDTLS_SSL_COUNTER_LEN );
p += MBEDTLS_SSL_COUNTER_LEN;
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
@ -6040,7 +6040,6 @@ static int ssl_context_load( mbedtls_ssl_context *ssl,
if( (size_t)( end - p ) < sizeof( ssl->cur_out_ctr ) )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
memcpy( ssl->cur_out_ctr, p, sizeof( ssl->cur_out_ctr ) );
p += sizeof( ssl->cur_out_ctr );