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App data with 1/n-1 splitting in test suite

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Counting of the fragments has been shifted from the writing section to
the reading. This is more reliable because one reading is made for one
fragment and during one write the library can internally divide data
into two fragments

Signed-off-by: Piotr Nowicki <piotr.nowicki@arm.com>
This commit is contained in:
Piotr Nowicki 2020-03-10 12:59:10 +01:00
parent c31f970a46
commit 438bf3b667
2 changed files with 15 additions and 21 deletions
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2
tests/suites/test_suite_ssl.data
View File

@ -199,12 +199,10 @@ move_handshake_to_state:MBEDTLS_SSL_IS_CLIENT:MBEDTLS_SSL_SERVER_HELLO_VERIFY_RE
Negative test moving servers ssl to state: NEW_SESSION_TICKET
move_handshake_to_state:MBEDTLS_SSL_IS_SERVER:MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET:0
# Note - the case below will have to updated, since the test sends no data due to a 1n-1 split against BEAST, that was not expected when preparing the fragment counting code.
Handshake, SSL3
depends_on:MBEDTLS_SSL_PROTO_SSL3:MBEDTLS_RSA_C:MBEDTLS_ECP_DP_SECP384R1_ENABLED
handshake_version:MBEDTLS_SSL_MINOR_VERSION_0:0
# Note - the case below will have to updated, since the test sends no data due to a 1n-1 split against BEAST, that was not expected when preparing the fragment counting code.
Handshake, tls1
depends_on:MBEDTLS_SSL_PROTO_TLS1:MBEDTLS_CIPHER_MODE_CBC
handshake_version:MBEDTLS_SSL_MINOR_VERSION_1:0

34
tests/suites/test_suite_ssl.function
View File

@ -13,7 +13,8 @@ typedef struct log_pattern
size_t counter;
} log_pattern;
/* This function can be passed to mbedtls to receive output logs from it. In
/*
* This function can be passed to mbedtls to receive output logs from it. In
* this case, it will count the instances of a log_pattern in the received
* logged messages.
*/
@ -1009,17 +1010,15 @@ int mbedtls_move_handshake_to_state( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_X509_CRT_PARSE_C */
/*
* Write application data. Increase write counter and fragments counter if
* necessary.
* Write application data. Increase write counter if necessary.
*/
int mbedtls_ssl_write_fragment( mbedtls_ssl_context *ssl, unsigned char *buf,
int buf_len, int *written,
int *fragments, const int expected_fragments )
const int expected_fragments )
{
int ret = mbedtls_ssl_write( ssl, buf + *written, buf_len - *written );
if( ret > 0 )
{
(*fragments)++;
*written += ret;
}
@ -1055,15 +1054,16 @@ exit:
}
/*
* Read application data and increase read counter if necessary.
* Read application data and increase read counter and fragments counter if necessary.
*/
int mbedtls_ssl_read_fragment( mbedtls_ssl_context *ssl, unsigned char *buf,
int buf_len, int *read,
const int expected_fragments )
int *fragments, const int expected_fragments )
{
int ret = mbedtls_ssl_read( ssl, buf + *read, buf_len - *read );
if( ret > 0 )
{
( *fragments )++;
*read += ret;
}
@ -1552,7 +1552,6 @@ int mbedtls_exchange_data( mbedtls_ssl_context *ssl_1,
{
ret = mbedtls_ssl_write_fragment( ssl_1, msg_buf_1,
msg_len_1, &written_1,
&fragments_1,
expected_fragments_1 );
if( expected_fragments_1 == 0 )
{
@ -1572,7 +1571,6 @@ int mbedtls_exchange_data( mbedtls_ssl_context *ssl_1,
{
ret = mbedtls_ssl_write_fragment( ssl_2, msg_buf_2,
msg_len_2, &written_2,
&fragments_2,
expected_fragments_2 );
if( expected_fragments_2 == 0 )
{
@ -1592,7 +1590,8 @@ int mbedtls_exchange_data( mbedtls_ssl_context *ssl_1,
{
ret = mbedtls_ssl_read_fragment( ssl_1, in_buf_1,
msg_len_2, &read_1,
expected_fragments_1 );
&fragments_2,
expected_fragments_2 );
TEST_ASSERT( ret == 0 );
}
@ -1601,7 +1600,8 @@ int mbedtls_exchange_data( mbedtls_ssl_context *ssl_1,
{
ret = mbedtls_ssl_read_fragment( ssl_2, in_buf_2,
msg_len_1, &read_2,
expected_fragments_2 );
&fragments_1,
expected_fragments_1 );
TEST_ASSERT( ret == 0 );
}
}
@ -1799,9 +1799,6 @@ void perform_handshake( handshake_test_options* options )
#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH)
if( options->resize_buffers != 0 )
{
/* Note - the case below will have to updated, since due to a 1n-1
* split against BEAST the fragment count is different
* than expected when preparing the fragment counting code. */
if( options->version != MBEDTLS_SSL_MINOR_VERSION_0 &&
options->version != MBEDTLS_SSL_MINOR_VERSION_1 )
{
@ -3747,14 +3744,13 @@ void handshake_version( int version, int dtls )
options.version = version;
options.dtls = dtls;
/* Note - the case below will have to updated, since the test sends no data
* due to a 1n-1 split against BEAST, that was not expected when preparing
* the fragment counting code. */
/* By default, SSLv3.0 and TLSv1.0 use 1/n-1 splitting when sending data, so
* the number of fragments will be twice as big. */
if( version == MBEDTLS_SSL_MINOR_VERSION_0 ||
version == MBEDTLS_SSL_MINOR_VERSION_1 )
{
options.cli_msg_len = 0;
options.srv_msg_len = 0;
options.expected_cli_fragments = 2;
options.expected_srv_fragments = 2;
}
perform_handshake( &options );