yuzu-emu/mbedtls
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Remove on-target testing

Browse source 
It was unmaintained and untested, and the fear of breaking it was holding us
back. Resolves #4934.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2021-09-14 11:28:22 +02:00
parent 9202ba37b1
commit d025422c28
5 changed files with 4 additions and 873 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
ChangeLog.d/remove-greentea-support.txt Normal file
View file

@ -0,0 +1,3 @@
Removals
* Remove the partial support for running unit tests via Greentea on Mbed OS,
which had been unmaintained since 2018.

39
tests/Makefile
View file

@ -173,7 +173,7 @@ $(BINARIES): %$(EXEXT): %.c $(MBEDLIBS) $(TEST_OBJS_DEPS) $(MBEDTLS_TEST_OBJS)
clean:
ifndef WINDOWS
rm -rf $(BINARIES) *.c *.datax TESTS
rm -rf $(BINARIES) *.c *.datax
rm -f src/*.o src/drivers/*.o src/libmbed*
rm -f include/test/instrument_record_status.h
else
@ -184,9 +184,6 @@ else
if exist src/drivers/*.o del /Q /F src/drivers/*.o
if exist src/libmbed* del /Q /F src/libmed*
if exist include/test/instrument_record_status.h del /Q /F include/test/instrument_record_status.h
ifneq ($(wildcard TESTS/.*),)
rmdir /Q /S TESTS
endif
endif
neat: clean
@ -202,40 +199,6 @@ check: $(BINARIES)
test: check
# Create separate targets for generating embedded tests.
EMBEDDED_TESTS := $(addprefix embedded_,$(APPS))
# Generate test code for target.
.SECONDEXPANSION:
$(EMBEDDED_TESTS): embedded_%: suites/$$(firstword $$(subst ., ,$$*)).function suites/%.data scripts/generate_test_code.py suites/helpers.function suites/main_test.function suites/target_test.function
echo " Gen ./TESTS/mbedtls/$*/$*.c"
$(PYTHON) scripts/generate_test_code.py -f suites/$(firstword $(subst ., ,$*)).function \
-d suites/$*.data \
-t suites/main_test.function \
-p suites/target_test.function \
-s suites \
--helpers-file suites/helpers.function \
-o ./TESTS/mbedtls/$*
generate-target-tests: $(EMBEDDED_TESTS)
define copy_header_to_target
TESTS/mbedtls/$(1)/$(2): include/test/$(2)
echo " Copy ./$$@"
ifndef WINDOWS
mkdir -p $$(@D)
cp $$< $$@
else
mkdir $$(@D)
copy $$< $$@
endif
endef
$(foreach app, $(APPS), $(foreach file, $(notdir $(wildcard include/test/*.h)), \
$(eval $(call copy_header_to_target,$(app),$(file)))))
$(addprefix embedded_,$(filter test_suite_psa_%, $(APPS))): embedded_%: $(patsubst TESTS/mbedtls/%, include/test/%, $(wildcard include/test/*. include/test/*/*.h))
ifdef RECORD_PSA_STATUS_COVERAGE_LOG
include/test/instrument_record_status.h: ../include/psa/crypto.h Makefile
echo " Gen $@"

4
tests/scripts/generate_test_code.py
View file

@ -106,10 +106,6 @@ Platform file:
Platform file contains platform specific setup code and test case
dispatch code. For example, host_test.function reads test data
file from host's file system and dispatches tests.
In case of on-target target_test.function tests are not dispatched
on target. Target code is kept minimum and only test functions are
dispatched. Test case dispatch is done on the host using tools like
Greentea.
Template file:
---------

382
tests/scripts/mbedtls_test.py
View file

@ -1,382 +0,0 @@
#!/usr/bin/env python3
# Greentea host test script for Mbed TLS on-target test suite testing.
#
# Copyright The Mbed TLS Contributors
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Mbed TLS on-target test suite tests are implemented as Greentea
tests. Greentea tests are implemented in two parts: target test and
host test. Target test is a C application that is built for the
target platform and executes on the target. Host test is a Python
class derived from mbed_host_tests.BaseHostTest. Target communicates
with the host over serial for the test data and sends back the result.
Python tool mbedgt (Greentea) is responsible for flashing the test
binary on to the target and dynamically loading this host test module.
Greentea documentation can be found here:
https://github.com/ARMmbed/greentea
"""
import re
import os
import binascii
from mbed_host_tests import BaseHostTest, event_callback # type: ignore # pylint: disable=import-error
class TestDataParserError(Exception):
"""Indicates error in test data, read from .data file."""
pass
class TestDataParser:
"""
Parses test name, dependencies, test function name and test parameters
from the data file.
"""
def __init__(self):
"""
Constructor
"""
self.tests = []
def parse(self, data_file):
"""
Data file parser.
:param data_file: Data file path
"""
with open(data_file, 'r') as data_f:
self.__parse(data_f)
@staticmethod
def __escaped_split(inp_str, split_char):
"""
Splits inp_str on split_char except when escaped.
:param inp_str: String to split
:param split_char: Split character
:return: List of splits
"""
split_colon_fn = lambda x: re.sub(r'\\' + split_char, split_char, x)
if len(split_char) > 1:
raise ValueError('Expected split character. Found string!')
out = list(map(split_colon_fn, re.split(r'(?<!\\)' + split_char, inp_str)))
out = [x for x in out if x]
return out
def __parse(self, data_f):
"""
Parses data file using supplied file object.
:param data_f: Data file object
:return:
"""
for line in data_f:
line = line.strip()
if not line:
continue
# Read test name
name = line
# Check dependencies
dependencies = []
line = next(data_f).strip()
match = re.search('depends_on:(.*)', line)
if match:
dependencies = [int(x) for x in match.group(1).split(':')]
line = next(data_f).strip()
# Read test vectors
line = line.replace('\\n', '\n')
parts = self.__escaped_split(line, ':')
function_name = int(parts[0])
args = parts[1:]
args_count = len(args)
if args_count % 2 != 0:
err_str_fmt = "Number of test arguments({}) should be even: {}"
raise TestDataParserError(err_str_fmt.format(args_count, line))
grouped_args = [(args[i * 2], args[(i * 2) + 1])
for i in range(int(len(args)/2))]
self.tests.append((name, function_name, dependencies,
grouped_args))
def get_test_data(self):
"""
Returns test data.
"""
return self.tests
class MbedTlsTest(BaseHostTest):
"""
Host test for Mbed TLS unit tests. This script is loaded at
run time by Greentea for executing Mbed TLS test suites. Each
communication from the target is received in this object as
an event, which is then handled by the event handler method
decorated by the associated event. Ex: @event_callback('GO').
Target test sends requests for dispatching next test. It reads
tests from the intermediate data file and sends test function
identifier, dependency identifiers, expression identifiers and
the test data in binary form. Target test checks dependencies
, evaluate integer constant expressions and dispatches the test
function with received test parameters. After test function is
finished, target sends the result. This class handles the result
event and prints verdict in the form that Greentea understands.
"""
# status/error codes from suites/helpers.function
DEPENDENCY_SUPPORTED = 0
KEY_VALUE_MAPPING_FOUND = DEPENDENCY_SUPPORTED
DISPATCH_TEST_SUCCESS = DEPENDENCY_SUPPORTED
KEY_VALUE_MAPPING_NOT_FOUND = -1 # Expression Id not found.
DEPENDENCY_NOT_SUPPORTED = -2 # Dependency not supported.
DISPATCH_TEST_FN_NOT_FOUND = -3 # Test function not found.
DISPATCH_INVALID_TEST_DATA = -4 # Invalid parameter type.
DISPATCH_UNSUPPORTED_SUITE = -5 # Test suite not supported/enabled.
def __init__(self):
"""
Constructor initialises test index to 0.
"""
super(MbedTlsTest, self).__init__()
self.tests = []
self.test_index = -1
self.dep_index = 0
self.suite_passed = True
self.error_str = dict()
self.error_str[self.DEPENDENCY_SUPPORTED] = \
'DEPENDENCY_SUPPORTED'
self.error_str[self.KEY_VALUE_MAPPING_NOT_FOUND] = \
'KEY_VALUE_MAPPING_NOT_FOUND'
self.error_str[self.DEPENDENCY_NOT_SUPPORTED] = \
'DEPENDENCY_NOT_SUPPORTED'
self.error_str[self.DISPATCH_TEST_FN_NOT_FOUND] = \
'DISPATCH_TEST_FN_NOT_FOUND'
self.error_str[self.DISPATCH_INVALID_TEST_DATA] = \
'DISPATCH_INVALID_TEST_DATA'
self.error_str[self.DISPATCH_UNSUPPORTED_SUITE] = \
'DISPATCH_UNSUPPORTED_SUITE'
def setup(self):
"""
Setup hook implementation. Reads test suite data file and parses out
tests.
"""
binary_path = self.get_config_item('image_path')
script_dir = os.path.split(os.path.abspath(__file__))[0]
suite_name = os.path.splitext(os.path.basename(binary_path))[0]
data_file = ".".join((suite_name, 'datax'))
data_file = os.path.join(script_dir, '..', 'mbedtls',
suite_name, data_file)
if os.path.exists(data_file):
self.log("Running tests from %s" % data_file)
parser = TestDataParser()
parser.parse(data_file)
self.tests = parser.get_test_data()
self.print_test_info()
else:
self.log("Data file not found: %s" % data_file)
self.notify_complete(False)
def print_test_info(self):
"""
Prints test summary read by Greentea to detect test cases.
"""
self.log('{{__testcase_count;%d}}' % len(self.tests))
for name, _, _, _ in self.tests:
self.log('{{__testcase_name;%s}}' % name)
@staticmethod
def align_32bit(data_bytes):
"""
4 byte aligns input byte array.
:return:
"""
data_bytes += bytearray((4 - (len(data_bytes))) % 4)
@staticmethod
def hex_str_bytes(hex_str):
"""
Converts Hex string representation to byte array
:param hex_str: Hex in string format.
:return: Output Byte array
"""
if hex_str[0] != '"' or hex_str[len(hex_str) - 1] != '"':
raise TestDataParserError("HEX test parameter missing '\"':"
" %s" % hex_str)
hex_str = hex_str.strip('"')
if len(hex_str) % 2 != 0:
raise TestDataParserError("HEX parameter len should be mod of "
"2: %s" % hex_str)
data_bytes = binascii.unhexlify(hex_str)
return data_bytes
@staticmethod
def int32_to_big_endian_bytes(i):
"""
Coverts i to byte array in big endian format.
:param i: Input integer
:return: Output bytes array in big endian or network order
"""
data_bytes = bytearray([((i >> x) & 0xff) for x in [24, 16, 8, 0]])
return data_bytes
def test_vector_to_bytes(self, function_id, dependencies, parameters):
"""
Converts test vector into a byte array that can be sent to the target.
:param function_id: Test Function Identifier
:param dependencies: Dependency list
:param parameters: Test function input parameters
:return: Byte array and its length
"""
data_bytes = bytearray([len(dependencies)])
if dependencies:
data_bytes += bytearray(dependencies)
data_bytes += bytearray([function_id, len(parameters)])
for typ, param in parameters:
if typ in ('int', 'exp'):
i = int(param, 0)
data_bytes += b'I' if typ == 'int' else b'E'
self.align_32bit(data_bytes)
data_bytes += self.int32_to_big_endian_bytes(i)
elif typ == 'char*':
param = param.strip('"')
i = len(param) + 1 # + 1 for null termination
data_bytes += b'S'
self.align_32bit(data_bytes)
data_bytes += self.int32_to_big_endian_bytes(i)
data_bytes += bytearray(param, encoding='ascii')
data_bytes += b'\0' # Null terminate
elif typ == 'hex':
binary_data = self.hex_str_bytes(param)
data_bytes += b'H'
self.align_32bit(data_bytes)
i = len(binary_data)
data_bytes += self.int32_to_big_endian_bytes(i)
data_bytes += binary_data
length = self.int32_to_big_endian_bytes(len(data_bytes))
return data_bytes, length
def run_next_test(self):
"""
Fetch next test information and execute the test.
"""
self.test_index += 1
self.dep_index = 0
if self.test_index < len(self.tests):
name, function_id, dependencies, args = self.tests[self.test_index]
self.run_test(name, function_id, dependencies, args)
else:
self.notify_complete(self.suite_passed)
def run_test(self, name, function_id, dependencies, args):
"""
Execute the test on target by sending next test information.
:param name: Test name
:param function_id: function identifier
:param dependencies: Dependencies list
:param args: test parameters
:return:
"""
self.log("Running: %s" % name)
param_bytes, length = self.test_vector_to_bytes(function_id,
dependencies, args)
self.send_kv(
''.join('{:02x}'.format(x) for x in length),
''.join('{:02x}'.format(x) for x in param_bytes)
)
@staticmethod
def get_result(value):
"""
Converts result from string type to integer
:param value: Result code in string
:return: Integer result code. Value is from the test status
constants defined under the MbedTlsTest class.
"""
try:
return int(value)
except ValueError:
ValueError("Result should return error number. "
"Instead received %s" % value)
@event_callback('GO')
def on_go(self, _key, _value, _timestamp):
"""
Sent by the target to start first test.
:param _key: Event key
:param _value: Value. ignored
:param _timestamp: Timestamp ignored.
:return:
"""
self.run_next_test()
@event_callback("R")
def on_result(self, _key, value, _timestamp):
"""
Handle result. Prints test start, finish required by Greentea
to detect test execution.
:param _key: Event key
:param value: Value. ignored
:param _timestamp: Timestamp ignored.
:return:
"""
int_val = self.get_result(value)
name, _, _, _ = self.tests[self.test_index]
self.log('{{__testcase_start;%s}}' % name)
self.log('{{__testcase_finish;%s;%d;%d}}' % (name, int_val == 0,
int_val != 0))
if int_val != 0:
self.suite_passed = False
self.run_next_test()
@event_callback("F")
def on_failure(self, _key, value, _timestamp):
"""
Handles test execution failure. That means dependency not supported or
Test function not supported. Hence marking test as skipped.
:param _key: Event key
:param value: Value. ignored
:param _timestamp: Timestamp ignored.
:return:
"""
int_val = self.get_result(value)
if int_val in self.error_str:
err = self.error_str[int_val]
else:
err = 'Unknown error'
# For skip status, do not write {{__testcase_finish;...}}
self.log("Error: %s" % err)
self.run_next_test()

449
tests/suites/target_test.function
View file

@ -1,449 +0,0 @@
#line 2 "suites/target_test.function"
#include "greentea-client/test_env.h"
/**
* \brief Increments pointer and asserts that it does not overflow.
*
* \param p Pointer to byte array
* \param start Pointer to start of byte array
* \param len Length of byte array
* \param step Increment size
*
*/
#define INCR_ASSERT(p, start, len, step) do \
{ \
TEST_HELPER_ASSERT( ( p ) >= ( start ) ); \
TEST_HELPER_ASSERT( sizeof( *( p ) ) == sizeof( *( start ) ) ); \
/* <= is checked to support use inside a loop where \
pointer is incremented after reading data. */ \
TEST_HELPER_ASSERT( (uint32_t)( ( ( p ) - ( start ) ) + ( step ) ) <= ( len ) );\
( p ) += ( step ); \
} \
while( 0 )
/**
* \brief 4 byte align unsigned char pointer
*
* \param p Pointer to byte array
* \param start Pointer to start of byte array
* \param len Length of byte array
*
*/
#define ALIGN_32BIT(p, start, len) do \
{ \
uint32_t align = ( - (uintptr_t)( p ) ) % 4; \
INCR_ASSERT( ( p ), ( start ), ( len ), align );\
} \
while( 0 )
/**
* \brief Verify dependencies. Dependency identifiers are
* encoded in the buffer as 8 bit unsigned integers.
*
* \param count Number of dependencies.
* \param dep_p Pointer to buffer.
*
* \return DEPENDENCY_SUPPORTED if success else DEPENDENCY_NOT_SUPPORTED.
*/
int verify_dependencies( uint8_t count, uint8_t * dep_p )
{
uint8_t i;
for ( i = 0; i < count; i++ )
{
if ( dep_check( (int)(dep_p[i]) ) != DEPENDENCY_SUPPORTED )
return( DEPENDENCY_NOT_SUPPORTED );
}
return( DEPENDENCY_SUPPORTED );
}
/**
* \brief Receives hex string on serial interface, and converts to a byte.
*
* \param none
*
* \return unsigned int8
*/
uint8_t receive_byte()
{
uint8_t byte;
uint8_t c[3];
size_t len;
c[0] = greentea_getc();
c[1] = greentea_getc();
c[2] = '\0';
TEST_HELPER_ASSERT( mbedtls_test_unhexify( &byte, sizeof( byte ),
c, &len ) == 0 );
TEST_HELPER_ASSERT( len != 2 );
return( byte );
}
/**
* \brief Receives unsigned integer on serial interface.
* Integers are encoded in network order, and sent as hex ascii string.
*
* \param none
*
* \return unsigned int
*/
uint32_t receive_uint32()
{
uint32_t value;
size_t len;
const uint8_t c_be[8] = { greentea_getc(),
greentea_getc(),
greentea_getc(),
greentea_getc(),
greentea_getc(),
greentea_getc(),
greentea_getc(),
greentea_getc()
};
const uint8_t c[9] = { c_be[6], c_be[7], c_be[4], c_be[5], c_be[2],
c_be[3], c_be[0], c_be[1], '\0' };
TEST_HELPER_ASSERT( mbedtls_test_unhexify( (uint8_t*)&value, sizeof( value ),
c, &len ) == 0 );
TEST_HELPER_ASSERT( len != 8 );
return( value );
}
/**
* \brief Parses out an unsigned 32 int value from the byte array.
* Integers are encoded in network order.
*
* \param p Pointer to byte array
*
* \return unsigned int
*/
uint32_t parse_uint32( uint8_t * p )
{
uint32_t value;
value = *p++ << 24;
value |= *p++ << 16;
value |= *p++ << 8;
value |= *p;
return( value );
}
/**
* \brief Receives test data on serial as greentea key,value pair:
* {{<length>;<byte array>}}
*
* \param data_len Out pointer to hold received data length.
*
* \return Byte array.
*/
uint8_t * receive_data( uint32_t * data_len )
{
uint32_t i = 0, errors = 0;
char c;
uint8_t * data = NULL;
/* Read opening braces */
i = 0;
while ( i < 2 )
{
c = greentea_getc();
/* Ignore any prevous CR LF characters */
if ( c == '\n' || c == '\r' )
continue;
i++;
if ( c != '{' )
return( NULL );
}
/* Read data length */
*data_len = receive_uint32();
data = (uint8_t *)malloc( *data_len );
TEST_HELPER_ASSERT( data != NULL );
greentea_getc(); // read ';' received after key i.e. *data_len
for( i = 0; i < *data_len; i++ )
data[i] = receive_byte();
/* Read closing braces */
for( i = 0; i < 2; i++ )
{
c = greentea_getc();
if ( c != '}' )
{
errors++;
break;
}
}
if ( errors )
{
free( data );
data = NULL;
*data_len = 0;
}
return( data );
}
/**
* \brief Parse the received byte array and count the number of arguments
* to the test function passed as type hex.
*
* \param count Parameter count
* \param data Received Byte array
* \param data_len Byte array length
*
* \return count of hex params
*/
uint32_t find_hex_count( uint8_t count, uint8_t * data, uint32_t data_len )
{
uint32_t i = 0, sz = 0;
char c;
uint8_t * p = NULL;
uint32_t hex_count = 0;
p = data;
for( i = 0; i < count; i++ )
{
c = (char)*p;
INCR_ASSERT( p, data, data_len, 1 );
/* Align p to 4 bytes for int, expression, string len or hex length */
ALIGN_32BIT( p, data, data_len );
/* Network to host conversion */
sz = (int32_t)parse_uint32( p );
INCR_ASSERT( p, data, data_len, sizeof( int32_t ) );
if ( c == 'H' || c == 'S' )
{
INCR_ASSERT( p, data, data_len, sz );
hex_count += ( c == 'H' )?1:0;
}
}
return( hex_count );
}
/**
* \brief Parses received byte array for test parameters.
*
* \param count Parameter count
* \param data Received Byte array
* \param data_len Byte array length
* \param error Parsing error out variable.
*
* \return Array of parsed parameters allocated on heap.
* Note: Caller has the responsibility to delete
* the memory after use.
*/
void ** parse_parameters( uint8_t count, uint8_t * data, uint32_t data_len,
int * error )
{
uint32_t i = 0, hex_count = 0;
char c;
void ** params = NULL;
void ** cur = NULL;
uint8_t * p = NULL;
hex_count = find_hex_count(count, data, data_len);
params = (void **)malloc( sizeof( void *) * ( count + hex_count ) );
TEST_HELPER_ASSERT( params != NULL );
cur = params;
p = data;
/* Parameters */
for( i = 0; i < count; i++ )
{
c = (char)*p;
INCR_ASSERT( p, data, data_len, 1 );
/* Align p to 4 bytes for int, expression, string len or hex length */
ALIGN_32BIT( p, data, data_len );
/* Network to host conversion */
*( (int32_t *)p ) = (int32_t)parse_uint32( p );
switch( c )
{
case 'E':
{
if ( get_expression( *( (int32_t *)p ), (int32_t *)p ) )
{
*error = KEY_VALUE_MAPPING_NOT_FOUND;
goto exit;
}
} /* Intentional fall through */
case 'I':
{
*cur++ = (void *)p;
INCR_ASSERT( p, data, data_len, sizeof( int32_t ) );
}
break;
case 'H': /* Intentional fall through */
case 'S':
{
uint32_t * sz = (uint32_t *)p;
INCR_ASSERT( p, data, data_len, sizeof( int32_t ) );
*cur++ = (void *)p;
if ( c == 'H' )
*cur++ = (void *)sz;
INCR_ASSERT( p, data, data_len, ( *sz ) );
}
break;
default:
{
*error = DISPATCH_INVALID_TEST_DATA;
goto exit;
}
break;
}
}
exit:
if ( *error )
{
free( params );
params = NULL;
}
return( params );
}
/**
* \brief Sends greentea key and int value pair to host.
*
* \param key key string
* \param value integer value
*
* \return void
*/
void send_key_integer( char * key, int value )
{
char str[50];
snprintf( str, sizeof( str ), "%d", value );
greentea_send_kv( key, str );
}
/**
* \brief Sends test setup failure to the host.
*
* \param failure Test set failure
*
* \return void
*/
void send_failure( int failure )
{
send_key_integer( "F", failure );
}
/**
* \brief Sends test status to the host.
*
* \param status Test status (PASS=0/FAIL=!0)
*
* \return void
*/
void send_status( int status )
{
send_key_integer( "R", status );
}
/**
* \brief Embedded implementation of execute_tests().
* Ignores command line and received test data
* on serial.
*
* \param argc not used
* \param argv not used
*
* \return Program exit status.
*/
int execute_tests( int args, const char ** argv )
{
int ret = 0;
uint32_t data_len = 0;
uint8_t count = 0, function_id;
void ** params = NULL;
uint8_t * data = NULL, * p = NULL;
GREENTEA_SETUP( 800, "mbedtls_test" );
greentea_send_kv( "GO", " " );
while ( 1 )
{
ret = 0;
mbedtls_test_info_reset( );
data_len = 0;
data = receive_data( &data_len );
if ( data == NULL )
continue;
p = data;
do
{
/* Read dependency count */
count = *p;
TEST_HELPER_ASSERT( count < data_len );
INCR_ASSERT( p, data, data_len, sizeof( uint8_t ) );
ret = verify_dependencies( count, p );
if ( ret != DEPENDENCY_SUPPORTED )
break;
if ( count )
INCR_ASSERT( p, data, data_len, count );
/* Read function id */
function_id = *p;
INCR_ASSERT( p, data, data_len, sizeof( uint8_t ) );
if ( ( ret = check_test( function_id ) ) != DISPATCH_TEST_SUCCESS )
break;
/* Read number of parameters */
count = *p;
INCR_ASSERT( p, data, data_len, sizeof( uint8_t ) );
/* Parse parameters if present */
if ( count )
{
params = parse_parameters( count, p, data_len - ( p - data ), &ret );
if ( ret )
break;
}
ret = dispatch_test( function_id, params );
}
while ( 0 );
if ( data )
{
free( data );
data = NULL;
}
if ( params )
{
free( params );
params = NULL;
}
if ( ret )
send_failure( ret );
else
send_status( mbedtls_test_info.result );
}
return( 0 );
}