Merge pull request #2987 from AndrzejKurek/iotssl-2958-datagram-transport-simulated

Message transport mocks in ssl tests
This commit is contained in:
Jaeden Amero 2020-01-30 10:23:27 +00:00 committed by GitHub
commit 79ef1d4e55
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 924 additions and 17 deletions

View file

@ -46,6 +46,45 @@ ssl_mock_tcp_interleaving:1
Test mock non-blocking TCP connection (interleaving)
ssl_mock_tcp_interleaving:0
Message queue - sanity
ssl_message_queue_sanity:
Message queue - basic test
ssl_message_queue_basic:
Message queue - overflow/underflow
ssl_message_queue_overflow_underflow:
Message queue - interleaved
ssl_message_queue_interleaved:
Message queue - insufficient buffer
ssl_message_queue_insufficient_buffer:
Message transport mock - uninitialized structures
ssl_message_mock_uninitialized:
Message transport mock - basic test
ssl_message_mock_basic:
Message transport mock - queue overflow/underflow
ssl_message_mock_queue_overflow_underflow:
Message transport mock - socket overflow
ssl_message_mock_socket_overflow:
Message transport mock - truncated message
ssl_message_mock_truncated:
Message transport mock - socket read error
ssl_message_mock_socket_read_error:
Message transport mock - one-way interleaved sends/reads
ssl_message_mock_interleaved_one_way:
Message transport mock - two-way interleaved sends/reads
ssl_message_mock_interleaved_two_ways:
SSL DTLS replay: initial state, seqnum 0
ssl_dtls_replay:"":"000000000000":0

View file

@ -108,16 +108,16 @@ int mbedtls_test_buffer_put( mbedtls_test_buffer *buf,
}
/*
* Gets \p output_len bytes from the \p output buffer into the ring buffer
* \p buf.
* Gets \p output_len bytes from the ring buffer \p buf into the
* \p output buffer. The output buffer can be NULL, in this case a part of the
* ring buffer will be dropped, if the requested length is available.
*
* \p buf must have been initialized and set up by calling
* `mbedtls_test_buffer_init()` and `mbedtls_test_buffer_setup()`.
*
* \retval \p output_len, if the data is available.
* \retval 0 <= value < \p output_len, if the data is not available.
* \retval -1, if \buf is NULL, it hasn't been set up or \p output_len is not
* zero and \p output is NULL
* \retval -1, if \buf is NULL or it hasn't been set up.
*/
int mbedtls_test_buffer_get( mbedtls_test_buffer *buf,
unsigned char* output, size_t output_len )
@ -127,10 +127,8 @@ int mbedtls_test_buffer_get( mbedtls_test_buffer *buf,
if( ( buf == NULL ) || ( buf->buffer == NULL ) )
return -1;
if( output == NULL )
{
return ( output_len == 0 ) ? 0 : -1;
}
if( output == NULL && output_len == 0 )
return 0;
if( buf->content_length < output_len )
output_len = buf->content_length;
@ -142,14 +140,148 @@ int mbedtls_test_buffer_get( mbedtls_test_buffer *buf,
overflow = ( buf->start + output_len ) % buf->capacity;
}
memcpy( output, buf->buffer + buf->start, output_len - overflow );
memcpy( output + output_len - overflow, buf->buffer, overflow );
if( output != NULL )
{
memcpy( output, buf->buffer + buf->start, output_len - overflow );
memcpy( output + output_len - overflow, buf->buffer, overflow );
}
buf->content_length -= output_len;
buf->start = ( buf->start + output_len ) % buf->capacity;
return output_len;
}
/*
* Errors used in the message transport mock tests
*/
#define MBEDTLS_TEST_ERROR_ARG_NULL -11
#define MBEDTLS_TEST_ERROR_QUEUE_FULL -22
#define MBEDTLS_TEST_ERROR_QUEUE_EMPTY -33
#define MBEDTLS_TEST_ERROR_MESSAGE_TRUNCATED -44
/*
* Context for a message metadata queue (fifo) that is on top of the ring buffer.
*/
typedef struct mbedtls_test_message_queue
{
size_t *messages;
int pos;
int num;
int capacity;
} mbedtls_test_message_queue;
/*
* Setup and free functions for the message metadata queue.
*
* \p capacity describes the number of message metadata chunks that can be held
* within the queue.
*
* \retval 0, if a metadata queue of a given length can be allocated.
* \retval MBEDTLS_ERR_SSL_ALLOC_FAILED, if allocation failed.
*/
int mbedtls_test_message_queue_setup( mbedtls_test_message_queue *queue,
size_t capacity )
{
queue->messages = (size_t*) mbedtls_calloc( capacity, sizeof(size_t) );
if( NULL == queue->messages )
return MBEDTLS_ERR_SSL_ALLOC_FAILED;
queue->capacity = capacity;
queue->pos = 0;
queue->num = 0;
return 0;
}
void mbedtls_test_message_queue_free( mbedtls_test_message_queue *queue )
{
if( queue == NULL )
return;
if( queue->messages != NULL )
mbedtls_free( queue->messages );
memset( queue, 0, sizeof( *queue ) );
}
/*
* Push message length information onto the message metadata queue.
* This will become the last element to leave it (fifo).
*
* \retval MBEDTLS_TEST_ERROR_ARG_NULL, if the queue is null.
* \retval MBEDTLS_TEST_ERROR_QUEUE_FULL, if the queue is full.
* \retval \p len, if the push was successful.
*/
int mbedtls_test_message_queue_push_info( mbedtls_test_message_queue *queue,
size_t len )
{
int place;
if( queue == NULL )
return MBEDTLS_TEST_ERROR_ARG_NULL;
if( queue->num >= queue->capacity )
return MBEDTLS_TEST_ERROR_QUEUE_FULL;
place = ( queue->pos + queue->num ) % queue->capacity;
queue->messages[place] = len;
queue->num++;
return len;
}
/*
* Pop information about the next message length from the queue. This will be
* the oldest inserted message length(fifo). \p msg_len can be null, in which
* case the data will be popped from the queue but not copied anywhere.
*
* \retval MBEDTLS_TEST_ERROR_ARG_NULL, if the queue is null.
* \retval MBEDTLS_TEST_ERROR_QUEUE_EMPTY, if the queue is empty.
* \retval message length, if the pop was successful, up to the given
\p buf_len.
*/
int mbedtls_test_message_queue_pop_info( mbedtls_test_message_queue *queue,
size_t buf_len )
{
size_t message_length;
if( queue == NULL )
return MBEDTLS_TEST_ERROR_ARG_NULL;
if( queue->num == 0 )
return MBEDTLS_TEST_ERROR_QUEUE_EMPTY;
message_length = queue->messages[queue->pos];
queue->messages[queue->pos] = 0;
queue->num--;
queue->pos++;
queue->pos %= queue->capacity;
if( queue->pos < 0 )
queue->pos += queue->capacity;
return ( message_length > buf_len ) ? buf_len : message_length;
}
/*
* Take a peek on the info about the next message length from the queue.
* This will be the oldest inserted message length(fifo).
*
* \retval MBEDTLS_TEST_ERROR_ARG_NULL, if the queue is null.
* \retval MBEDTLS_TEST_ERROR_QUEUE_EMPTY, if the queue is empty.
* \retval 0, if the peek was successful.
* \retval MBEDTLS_TEST_ERROR_MESSAGE_TRUNCATED, if the given buffer length is
* too small to fit the message. In this case the \p msg_len will be
* set to the full message length so that the
* caller knows what portion of the message can be dropped.
*/
int mbedtls_test_message_queue_peek_info( mbedtls_test_message_queue *queue,
size_t buf_len, size_t* msg_len )
{
if( queue == NULL || msg_len == NULL )
return MBEDTLS_TEST_ERROR_ARG_NULL;
if( queue->num == 0 )
return MBEDTLS_TEST_ERROR_QUEUE_EMPTY;
*msg_len = queue->messages[queue->pos];
return ( *msg_len > buf_len ) ? MBEDTLS_TEST_ERROR_MESSAGE_TRUNCATED : 0;
}
/*
* Context for the I/O callbacks simulating network connection.
*/
@ -327,6 +459,165 @@ int mbedtls_mock_tcp_recv_nb( void *ctx, unsigned char *buf, size_t len )
return mbedtls_test_buffer_get( socket->input, buf, len );
}
/* Errors used in the message socket mocks */
#define MBEDTLS_TEST_ERROR_CONTEXT_ERROR -55
#define MBEDTLS_TEST_ERROR_SEND_FAILED -66
#define MBEDTLS_TEST_ERROR_RECV_FAILED -77
/*
* Structure used as an addon, or a wrapper, around the mocked sockets.
* Contains an input queue, to which the other socket pushes metadata,
* and an output queue, to which this one pushes metadata. This context is
* considered as an owner of the input queue only, which is initialized and
* freed in the respective setup and free calls.
*/
typedef struct mbedtls_test_message_socket_context
{
mbedtls_test_message_queue* queue_input;
mbedtls_test_message_queue* queue_output;
mbedtls_mock_socket* socket;
} mbedtls_test_message_socket_context;
/*
* Setup a given mesasge socket context including initialization of
* input/output queues to a chosen capacity of messages. Also set the
* corresponding mock socket.
*
* \retval 0, if everything succeeds.
* \retval MBEDTLS_ERR_SSL_ALLOC_FAILED, if allocation of a message
* queue failed.
*/
int mbedtls_message_socket_setup( mbedtls_test_message_queue* queue_input,
mbedtls_test_message_queue* queue_output,
size_t queue_capacity,
mbedtls_mock_socket* socket,
mbedtls_test_message_socket_context* ctx )
{
int ret = mbedtls_test_message_queue_setup( queue_input, queue_capacity );
if( ret != 0 )
return ret;
ctx->queue_input = queue_input;
ctx->queue_output = queue_output;
ctx->socket = socket;
mbedtls_mock_socket_init( socket );
return 0;
}
/*
* Close a given message socket context, along with the socket itself. Free the
* memory allocated by the input queue.
*/
void mbedtls_message_socket_close( mbedtls_test_message_socket_context* ctx )
{
if( ctx == NULL )
return;
mbedtls_test_message_queue_free( ctx->queue_input );
mbedtls_mock_socket_close( ctx->socket );
memset( ctx, 0, sizeof( *ctx ) );
}
/*
* Send one message through a given message socket context.
*
* \retval \p len, if everything succeeds.
* \retval MBEDTLS_TEST_ERROR_CONTEXT_ERROR, if any of the needed context
* elements or the context itself is null.
* \retval MBEDTLS_TEST_ERROR_SEND_FAILED if mbedtls_mock_tcp_send_b failed.
* \retval MBEDTLS_TEST_ERROR_QUEUE_FULL, if the output queue is full.
*
* This function will also return any error from
* mbedtls_test_message_queue_push_info.
*/
int mbedtls_mock_tcp_send_msg( void *ctx, const unsigned char *buf, size_t len )
{
mbedtls_test_message_queue* queue;
mbedtls_mock_socket* socket;
mbedtls_test_message_socket_context *context = (mbedtls_test_message_socket_context*) ctx;
if( context == NULL || context->socket == NULL
|| context->queue_output == NULL )
{
return MBEDTLS_TEST_ERROR_CONTEXT_ERROR;
}
queue = context->queue_output;
socket = context->socket;
if( queue->num >= queue->capacity )
return MBEDTLS_TEST_ERROR_QUEUE_FULL;
if( mbedtls_mock_tcp_send_b( socket, buf, len ) != (int) len )
return MBEDTLS_TEST_ERROR_SEND_FAILED;
return mbedtls_test_message_queue_push_info( queue, len );
}
/*
* Receive one message from a given message socket context and return message
* length or an error.
*
* \retval message length, if everything succeeds.
* \retval MBEDTLS_TEST_ERROR_CONTEXT_ERROR, if any of the needed context
* elements or the context itself is null.
* \retval MBEDTLS_TEST_ERROR_RECV_FAILED if mbedtls_mock_tcp_recv_b failed.
*
* This function will also return any error other than
* MBEDTLS_TEST_ERROR_MESSAGE_TRUNCATED from mbedtls_test_message_queue_peek_info.
*/
int mbedtls_mock_tcp_recv_msg( void *ctx, unsigned char *buf, size_t buf_len )
{
mbedtls_test_message_queue* queue;
mbedtls_mock_socket* socket;
mbedtls_test_message_socket_context *context = (mbedtls_test_message_socket_context*) ctx;
size_t drop_len;
size_t msg_len;
int ret;
if( context == NULL || context->socket == NULL
|| context->queue_input == NULL )
{
return MBEDTLS_TEST_ERROR_CONTEXT_ERROR;
}
queue = context->queue_input;
socket = context->socket;
/* Peek first, so that in case of a socket error the data remains in
* the queue. */
ret = mbedtls_test_message_queue_peek_info( queue, buf_len, &msg_len );
if( ret == MBEDTLS_TEST_ERROR_MESSAGE_TRUNCATED )
{
/* Calculate how much to drop */
drop_len = msg_len - buf_len;
/* Set the requested message len to be buffer length */
msg_len = buf_len;
} else if( ret != 0 )
{
return ret;
}
if( mbedtls_mock_tcp_recv_b( socket, buf, msg_len ) != (int) msg_len )
return MBEDTLS_TEST_ERROR_RECV_FAILED;
if( ret == MBEDTLS_TEST_ERROR_MESSAGE_TRUNCATED )
{
/* Drop the remaining part of the message */
if( mbedtls_mock_tcp_recv_b( socket, NULL, drop_len ) != (int) drop_len )
{
/* Inconsistent state - part of the message was read,
* and a part couldn't. Not much we can do here, but it should not
* happen in test environment, unless forced manually. */
}
}
mbedtls_test_message_queue_pop_info( queue, buf_len );
return msg_len;
}
/*
* Helper function setting up inverse record transformations
* using given cipher, hash, EtM mode, authentication tag length,
@ -702,8 +993,7 @@ void test_callback_buffer_sanity()
TEST_ASSERT( mbedtls_test_buffer_get( NULL, output, sizeof( output ) )
== -1 );
TEST_ASSERT( mbedtls_test_buffer_put( NULL, NULL, sizeof( input ) ) == -1 );
TEST_ASSERT( mbedtls_test_buffer_get( NULL, NULL, sizeof( output ) )
== -1 );
TEST_ASSERT( mbedtls_test_buffer_put( NULL, NULL, 0 ) == -1 );
TEST_ASSERT( mbedtls_test_buffer_get( NULL, NULL, 0 ) == -1 );
@ -715,19 +1005,20 @@ void test_callback_buffer_sanity()
TEST_ASSERT( mbedtls_test_buffer_get( &buf, output, sizeof( output ) )
== -1 );
TEST_ASSERT( mbedtls_test_buffer_put( &buf, NULL, sizeof( input ) ) == -1 );
TEST_ASSERT( mbedtls_test_buffer_get( &buf, NULL, sizeof( output ) )
== -1 );
TEST_ASSERT( mbedtls_test_buffer_put( &buf, NULL, 0 ) == -1 );
TEST_ASSERT( mbedtls_test_buffer_get( &buf, NULL, 0 ) == -1 );
/* Make sure calling put end get on NULL input and output only results in
* error if the length is not zero. */
/* Make sure calling put and get on NULL input only results in
* error if the length is not zero, and that a NULL output is valid for data
* dropping.
*/
TEST_ASSERT( mbedtls_test_buffer_setup( &buf, sizeof( input ) ) == 0 );
TEST_ASSERT( mbedtls_test_buffer_put( &buf, NULL, sizeof( input ) ) == -1 );
TEST_ASSERT( mbedtls_test_buffer_get( &buf, NULL, sizeof( output ) )
== -1 );
== 0 );
TEST_ASSERT( mbedtls_test_buffer_put( &buf, NULL, 0 ) == 0 );
TEST_ASSERT( mbedtls_test_buffer_get( &buf, NULL, 0 ) == 0 );
@ -1157,6 +1448,583 @@ exit:
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_queue_sanity( )
{
mbedtls_test_message_queue queue;
/* Trying to push/pull to an empty queue */
TEST_ASSERT( mbedtls_test_message_queue_push_info( NULL, 1 )
== MBEDTLS_TEST_ERROR_ARG_NULL );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( NULL, 1 )
== MBEDTLS_TEST_ERROR_ARG_NULL );
mbedtls_test_message_queue_setup( &queue, 3 );
TEST_ASSERT( queue.capacity == 3 );
TEST_ASSERT( queue.num == 0 );
exit:
mbedtls_test_message_queue_free( &queue );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_queue_basic( )
{
mbedtls_test_message_queue queue;
mbedtls_test_message_queue_setup( &queue, 3 );
/* Sanity test - 3 pushes and 3 pops with sufficient space */
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 1 ) == 1 );
TEST_ASSERT( queue.capacity == 3 );
TEST_ASSERT( queue.num == 1 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 1 ) == 1 );
TEST_ASSERT( queue.capacity == 3 );
TEST_ASSERT( queue.num == 2 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 2 ) == 2 );
TEST_ASSERT( queue.capacity == 3 );
TEST_ASSERT( queue.num == 3 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 2 ) == 2 );
exit:
mbedtls_test_message_queue_free( &queue );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_queue_overflow_underflow( )
{
mbedtls_test_message_queue queue;
mbedtls_test_message_queue_setup( &queue, 3 );
/* 4 pushes (last one with an error), 4 pops (last one with an error) */
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 2 ) == 2 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 3 )
== MBEDTLS_TEST_ERROR_QUEUE_FULL );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 2 ) == 2 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 1 )
== MBEDTLS_TEST_ERROR_QUEUE_EMPTY );
exit:
mbedtls_test_message_queue_free( &queue );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_queue_interleaved( )
{
mbedtls_test_message_queue queue;
mbedtls_test_message_queue_setup( &queue, 3 );
/* Interleaved test - [2 pushes, 1 pop] twice, and then two pops
* (to wrap around the buffer) */
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 2 ) == 2 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 3 ) == 3 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 1 ) == 1 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 2 ) == 2 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 5 ) == 5 );
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, 8 ) == 8 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 3 ) == 3 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 5 ) == 5 );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, 8 ) == 8 );
exit:
mbedtls_test_message_queue_free( &queue );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_queue_insufficient_buffer( )
{
mbedtls_test_message_queue queue;
size_t message_len = 10;
size_t buffer_len = 5;
mbedtls_test_message_queue_setup( &queue, 1 );
/* Popping without a sufficient buffer */
TEST_ASSERT( mbedtls_test_message_queue_push_info( &queue, message_len )
== (int) message_len );
TEST_ASSERT( mbedtls_test_message_queue_pop_info( &queue, buffer_len )
== (int) buffer_len );
exit:
mbedtls_test_message_queue_free( &queue );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_uninitialized( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
/* Send with a NULL context */
TEST_ASSERT( mbedtls_mock_tcp_send_msg( NULL, message, MSGLEN )
== MBEDTLS_TEST_ERROR_CONTEXT_ERROR );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( NULL, message, MSGLEN )
== MBEDTLS_TEST_ERROR_CONTEXT_ERROR );
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 1,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 1,
&client,
&client_context ) == 0 );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message, MSGLEN )
== MBEDTLS_TEST_ERROR_SEND_FAILED );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MBEDTLS_TEST_ERROR_QUEUE_EMPTY );
/* Push directly to a queue to later simulate a disconnected behavior */
TEST_ASSERT( mbedtls_test_message_queue_push_info( &server_queue, MSGLEN )
== MSGLEN );
/* Test if there's an error when trying to read from a disconnected
* socket */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MBEDTLS_TEST_ERROR_RECV_FAILED );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_basic( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
unsigned i;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 1,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 1,
&client,
&client_context ) == 0 );
/* Fill up the buffer with structured data so that unwanted changes
* can be detected */
for( i = 0; i < MSGLEN; i++ )
{
message[i] = i & 0xFF;
}
TEST_ASSERT( 0 == mbedtls_mock_socket_connect( &client, &server,
MSGLEN ) );
/* Send the message to the server */
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
/* Read from the server */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
memset( received, 0, MSGLEN );
/* Send the message to the client */
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &server_context, message,
MSGLEN ) == MSGLEN );
/* Read from the client */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &client_context, received, MSGLEN )
== MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_queue_overflow_underflow( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
unsigned i;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 2,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 2,
&client,
&client_context ) == 0 );
/* Fill up the buffer with structured data so that unwanted changes
* can be detected */
for( i = 0; i < MSGLEN; i++ )
{
message[i] = i & 0xFF;
}
TEST_ASSERT( 0 == mbedtls_mock_socket_connect( &client, &server,
MSGLEN*2 ) );
/* Send three message to the server, last one with an error */
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN - 1 ) == MSGLEN - 1 );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN )
== MBEDTLS_TEST_ERROR_QUEUE_FULL );
/* Read three messages from the server, last one with an error */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received,
MSGLEN - 1 ) == MSGLEN - 1 );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MBEDTLS_TEST_ERROR_QUEUE_EMPTY );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_socket_overflow( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
unsigned i;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 2,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 2,
&client,
&client_context ) == 0 );
/* Fill up the buffer with structured data so that unwanted changes
* can be detected */
for( i = 0; i < MSGLEN; i++ )
{
message[i] = i & 0xFF;
}
TEST_ASSERT( 0 == mbedtls_mock_socket_connect( &client, &server,
MSGLEN ) );
/* Send two message to the server, second one with an error */
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN )
== MBEDTLS_TEST_ERROR_SEND_FAILED );
/* Read the only message from the server */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_truncated( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
unsigned i;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 2,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 2,
&client,
&client_context ) == 0 );
memset( received, 0, MSGLEN );
/* Fill up the buffer with structured data so that unwanted changes
* can be detected */
for( i = 0; i < MSGLEN; i++ )
{
message[i] = i & 0xFF;
}
TEST_ASSERT( 0 == mbedtls_mock_socket_connect( &client, &server,
2 * MSGLEN ) );
/* Send two messages to the server, the second one small enough to fit in the
* receiver's buffer. */
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN / 2 ) == MSGLEN / 2 );
/* Read a truncated message from the server */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN/2 )
== MSGLEN/2 );
/* Test that the first half of the message is valid, and second one isn't */
TEST_ASSERT( memcmp( message, received, MSGLEN/2 ) == 0 );
TEST_ASSERT( memcmp( message + MSGLEN/2, received + MSGLEN/2, MSGLEN/2 )
!= 0 );
memset( received, 0, MSGLEN );
/* Read a full message from the server */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN/2 )
== MSGLEN / 2 );
/* Test that the first half of the message is valid */
TEST_ASSERT( memcmp( message, received, MSGLEN/2 ) == 0 );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_socket_read_error( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
unsigned i;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 1,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 1,
&client,
&client_context ) == 0 );
/* Fill up the buffer with structured data so that unwanted changes
* can be detected */
for( i = 0; i < MSGLEN; i++ )
{
message[i] = i & 0xFF;
}
TEST_ASSERT( 0 == mbedtls_mock_socket_connect( &client, &server,
MSGLEN ) );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
/* Force a read error by disconnecting the socket by hand */
server.status = 0;
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MBEDTLS_TEST_ERROR_RECV_FAILED );
/* Return to a valid state */
server.status = MBEDTLS_MOCK_SOCKET_CONNECTED;
memset( received, 0, sizeof( received ) );
/* Test that even though the server tried to read once disconnected, the
* continuity is preserved */
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_interleaved_one_way( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
unsigned i;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 3,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 3,
&client,
&client_context ) == 0 );
/* Fill up the buffer with structured data so that unwanted changes
* can be detected */
for( i = 0; i < MSGLEN; i++ )
{
message[i] = i & 0xFF;
}
TEST_ASSERT( 0 == mbedtls_mock_socket_connect( &client, &server,
MSGLEN*3 ) );
/* Interleaved test - [2 sends, 1 read] twice, and then two reads
* (to wrap around the buffer) */
for( i = 0; i < 2; i++ )
{
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received,
MSGLEN ) == MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
memset( received, 0, sizeof( received ) );
}
for( i = 0; i < 2; i++ )
{
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received,
MSGLEN ) == MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
}
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MBEDTLS_TEST_ERROR_QUEUE_EMPTY );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE */
void ssl_message_mock_interleaved_two_ways( )
{
enum { MSGLEN = 10 };
unsigned char message[MSGLEN], received[MSGLEN];
mbedtls_mock_socket client, server;
unsigned i;
mbedtls_test_message_queue server_queue, client_queue;
mbedtls_test_message_socket_context server_context, client_context;
TEST_ASSERT( mbedtls_message_socket_setup( &server_queue, &client_queue, 3,
&server,
&server_context ) == 0 );
TEST_ASSERT( mbedtls_message_socket_setup( &client_queue, &server_queue, 3,
&client,
&client_context ) == 0 );
/* Fill up the buffer with structured data so that unwanted changes
* can be detected */
for( i = 0; i < MSGLEN; i++ )
{
message[i] = i & 0xFF;
}
TEST_ASSERT( 0 == mbedtls_mock_socket_connect( &client, &server,
MSGLEN*3 ) );
/* Interleaved test - [2 sends, 1 read] twice, both ways, and then two reads
* (to wrap around the buffer) both ways. */
for( i = 0; i < 2; i++ )
{
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &client_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &server_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_send_msg( &server_context, message,
MSGLEN ) == MSGLEN );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received,
MSGLEN ) == MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
memset( received, 0, sizeof( received ) );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &client_context, received,
MSGLEN ) == MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
memset( received, 0, sizeof( received ) );
}
for( i = 0; i < 2; i++ )
{
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received,
MSGLEN ) == MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
memset( received, 0, sizeof( received ) );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &client_context, received,
MSGLEN ) == MSGLEN );
TEST_ASSERT( memcmp( message, received, MSGLEN ) == 0 );
memset( received, 0, sizeof( received ) );
}
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &server_context, received, MSGLEN )
== MBEDTLS_TEST_ERROR_QUEUE_EMPTY );
TEST_ASSERT( mbedtls_mock_tcp_recv_msg( &client_context, received, MSGLEN )
== MBEDTLS_TEST_ERROR_QUEUE_EMPTY );
exit:
mbedtls_message_socket_close( &server_context );
mbedtls_message_socket_close( &client_context );
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_SSL_DTLS_ANTI_REPLAY */
void ssl_dtls_replay( data_t * prevs, data_t * new, int ret )
{