| #line 2 "suites/helpers.function" |
| /*----------------------------------------------------------------------------*/ |
| /* Headers */ |
| |
| #include <stdlib.h> |
| |
| #if defined(MBEDTLS_PLATFORM_C) |
| #include "mbedtls/platform.h" |
| #else |
| #include <stdio.h> |
| #define mbedtls_fprintf fprintf |
| #define mbedtls_snprintf snprintf |
| #define mbedtls_calloc calloc |
| #define mbedtls_free free |
| #define mbedtls_exit exit |
| #define mbedtls_time time |
| #define mbedtls_time_t time_t |
| #define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS |
| #define MBEDTLS_EXIT_FAILURE EXIT_FAILURE |
| #endif |
| |
| #if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) |
| #include "mbedtls/memory_buffer_alloc.h" |
| #endif |
| |
| #if defined(MBEDTLS_CHECK_PARAMS) |
| #include "mbedtls/platform_util.h" |
| #include <setjmp.h> |
| #endif |
| |
| #ifdef _MSC_VER |
| #include <basetsd.h> |
| typedef UINT8 uint8_t; |
| typedef INT32 int32_t; |
| typedef UINT32 uint32_t; |
| #define strncasecmp _strnicmp |
| #define strcasecmp _stricmp |
| #else |
| #include <stdint.h> |
| #endif |
| |
| #include <string.h> |
| |
| #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) |
| #include <unistd.h> |
| #include <strings.h> |
| #endif |
| |
| /* Type for Hex parameters */ |
| typedef struct data_tag |
| { |
| uint8_t * x; |
| uint32_t len; |
| } data_t; |
| |
| /*----------------------------------------------------------------------------*/ |
| /* Status and error constants */ |
| |
| #define DEPENDENCY_SUPPORTED 0 /* Dependency supported by build */ |
| #define KEY_VALUE_MAPPING_FOUND 0 /* Integer expression found */ |
| #define DISPATCH_TEST_SUCCESS 0 /* Test dispatch successful */ |
| |
| #define KEY_VALUE_MAPPING_NOT_FOUND -1 /* Integer expression not found */ |
| #define DEPENDENCY_NOT_SUPPORTED -2 /* Dependency not supported */ |
| #define DISPATCH_TEST_FN_NOT_FOUND -3 /* Test function not found */ |
| #define DISPATCH_INVALID_TEST_DATA -4 /* Invalid test parameter type. |
| Only int, string, binary data |
| and integer expressions are |
| allowed */ |
| #define DISPATCH_UNSUPPORTED_SUITE -5 /* Test suite not supported by the |
| build */ |
| |
| typedef enum |
| { |
| PARAMFAIL_TESTSTATE_IDLE = 0, /* No parameter failure call test */ |
| PARAMFAIL_TESTSTATE_PENDING, /* Test call to the parameter failure |
| * is pending */ |
| PARAMFAIL_TESTSTATE_CALLED /* The test call to the parameter |
| * failure function has been made */ |
| } paramfail_test_state_t; |
| |
| |
| /*----------------------------------------------------------------------------*/ |
| /* Macros */ |
| |
| /** |
| * \brief This macro tests the expression passed to it as a test step or |
| * individual test in a test case. |
| * |
| * It allows a library function to return a value and return an error |
| * code that can be tested. |
| * |
| * When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure |
| * callback, MBEDTLS_PARAM_FAILED(), will be assumed to be a test |
| * failure. |
| * |
| * This macro is not suitable for negative parameter validation tests, |
| * as it assumes the test step will not create an error. |
| * |
| * Failing the test means: |
| * - Mark this test case as failed. |
| * - Print a message identifying the failure. |
| * - Jump to the \c exit label. |
| * |
| * This macro expands to an instruction, not an expression. |
| * It may jump to the \c exit label. |
| * |
| * \param TEST The test expression to be tested. |
| */ |
| #define TEST_ASSERT( TEST ) \ |
| do { \ |
| if( ! (TEST) ) \ |
| { \ |
| test_fail( #TEST, __LINE__, __FILE__ ); \ |
| goto exit; \ |
| } \ |
| } while( 0 ) |
| |
| /** Evaluate two expressions and fail the test case if they have different |
| * values. |
| * |
| * \param expr1 An expression to evaluate. |
| * \param expr2 The expected value of \p expr1. This can be any |
| * expression, but it is typically a constant. |
| */ |
| #define TEST_EQUAL( expr1, expr2 ) \ |
| TEST_ASSERT( ( expr1 ) == ( expr2 ) ) |
| |
| /** Allocate memory dynamically and fail the test case if this fails. |
| * |
| * You must set \p pointer to \c NULL before calling this macro and |
| * put `mbedtls_free( pointer )` in the test's cleanup code. |
| * |
| * If \p length is zero, the resulting \p pointer will be \c NULL. |
| * This is usually what we want in tests since API functions are |
| * supposed to accept null pointers when a buffer size is zero. |
| * |
| * This macro expands to an instruction, not an expression. |
| * It may jump to the \c exit label. |
| * |
| * \param pointer An lvalue where the address of the allocated buffer |
| * will be stored. |
| * This expression may be evaluated multiple times. |
| * \param length Number of elements to allocate. |
| * This expression may be evaluated multiple times. |
| * |
| */ |
| #define ASSERT_ALLOC( pointer, length ) \ |
| do \ |
| { \ |
| TEST_ASSERT( ( pointer ) == NULL ); \ |
| if( ( length ) != 0 ) \ |
| { \ |
| ( pointer ) = mbedtls_calloc( sizeof( *( pointer ) ), \ |
| ( length ) ); \ |
| TEST_ASSERT( ( pointer ) != NULL ); \ |
| } \ |
| } \ |
| while( 0 ) |
| |
| /** Allocate memory dynamically. If the allocation fails, skip the test case. |
| * |
| * This macro behaves like #ASSERT_ALLOC, except that if the allocation |
| * fails, it marks the test as skipped rather than failed. |
| */ |
| #define ASSERT_ALLOC_WEAK( pointer, length ) \ |
| do \ |
| { \ |
| TEST_ASSERT( ( pointer ) == NULL ); \ |
| if( ( length ) != 0 ) \ |
| { \ |
| ( pointer ) = mbedtls_calloc( sizeof( *( pointer ) ), \ |
| ( length ) ); \ |
| TEST_ASSUME( ( pointer ) != NULL ); \ |
| } \ |
| } \ |
| while( 0 ) |
| |
| /** Compare two buffers and fail the test case if they differ. |
| * |
| * This macro expands to an instruction, not an expression. |
| * It may jump to the \c exit label. |
| * |
| * \param p1 Pointer to the start of the first buffer. |
| * \param size1 Size of the first buffer in bytes. |
| * This expression may be evaluated multiple times. |
| * \param p2 Pointer to the start of the second buffer. |
| * \param size2 Size of the second buffer in bytes. |
| * This expression may be evaluated multiple times. |
| */ |
| #define ASSERT_COMPARE( p1, size1, p2, size2 ) \ |
| do \ |
| { \ |
| TEST_ASSERT( ( size1 ) == ( size2 ) ); \ |
| if( ( size1 ) != 0 ) \ |
| TEST_ASSERT( memcmp( ( p1 ), ( p2 ), ( size1 ) ) == 0 ); \ |
| } \ |
| while( 0 ) |
| |
| /** |
| * \brief This macro tests the expression passed to it and skips the |
| * running test if it doesn't evaluate to 'true'. |
| * |
| * \param TEST The test expression to be tested. |
| */ |
| #define TEST_ASSUME( TEST ) \ |
| do { \ |
| if( ! (TEST) ) \ |
| { \ |
| test_skip( #TEST, __LINE__, __FILE__ ); \ |
| goto exit; \ |
| } \ |
| } while( 0 ) |
| |
| #if defined(MBEDTLS_CHECK_PARAMS) && !defined(MBEDTLS_PARAM_FAILED_ALT) |
| /** |
| * \brief This macro tests the statement passed to it as a test step or |
| * individual test in a test case. The macro assumes the test will fail |
| * and will generate an error. |
| * |
| * It allows a library function to return a value and tests the return |
| * code on return to confirm the given error code was returned. |
| * |
| * When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure |
| * callback, MBEDTLS_PARAM_FAILED(), are assumed to indicate the |
| * expected failure, and the test will pass. |
| * |
| * This macro is intended for negative parameter validation tests, |
| * where the failing function may return an error value or call |
| * MBEDTLS_PARAM_FAILED() to indicate the error. |
| * |
| * \param PARAM_ERROR_VALUE The expected error code. |
| * |
| * \param TEST The test expression to be tested. |
| */ |
| #define TEST_INVALID_PARAM_RET( PARAM_ERR_VALUE, TEST ) \ |
| do { \ |
| test_info.paramfail_test_state = PARAMFAIL_TESTSTATE_PENDING; \ |
| if( (TEST) != (PARAM_ERR_VALUE) || \ |
| test_info.paramfail_test_state != PARAMFAIL_TESTSTATE_CALLED ) \ |
| { \ |
| test_fail( #TEST, __LINE__, __FILE__ ); \ |
| goto exit; \ |
| } \ |
| } while( 0 ) |
| |
| /** |
| * \brief This macro tests the statement passed to it as a test step or |
| * individual test in a test case. The macro assumes the test will fail |
| * and will generate an error. |
| * |
| * It assumes the library function under test cannot return a value and |
| * assumes errors can only be indicated byt calls to |
| * MBEDTLS_PARAM_FAILED(). |
| * |
| * When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure |
| * callback, MBEDTLS_PARAM_FAILED(), are assumed to indicate the |
| * expected failure. If MBEDTLS_CHECK_PARAMS is not enabled, no test |
| * can be made. |
| * |
| * This macro is intended for negative parameter validation tests, |
| * where the failing function can only return an error by calling |
| * MBEDTLS_PARAM_FAILED() to indicate the error. |
| * |
| * \param TEST The test expression to be tested. |
| */ |
| #define TEST_INVALID_PARAM( TEST ) \ |
| do { \ |
| memcpy(jmp_tmp, param_fail_jmp, sizeof(jmp_buf)); \ |
| if( setjmp( param_fail_jmp ) == 0 ) \ |
| { \ |
| TEST; \ |
| test_fail( #TEST, __LINE__, __FILE__ ); \ |
| goto exit; \ |
| } \ |
| memcpy(param_fail_jmp, jmp_tmp, sizeof(jmp_buf)); \ |
| } while( 0 ) |
| #endif /* MBEDTLS_CHECK_PARAMS && !MBEDTLS_PARAM_FAILED_ALT */ |
| |
| /** |
| * \brief This macro tests the statement passed to it as a test step or |
| * individual test in a test case. The macro assumes the test will not fail. |
| * |
| * It assumes the library function under test cannot return a value and |
| * assumes errors can only be indicated by calls to |
| * MBEDTLS_PARAM_FAILED(). |
| * |
| * When MBEDTLS_CHECK_PARAMS is enabled, calls to the parameter failure |
| * callback, MBEDTLS_PARAM_FAILED(), are assumed to indicate the |
| * expected failure. If MBEDTLS_CHECK_PARAMS is not enabled, no test |
| * can be made. |
| * |
| * This macro is intended to test that functions returning void |
| * accept all of the parameter values they're supposed to accept - eg |
| * that they don't call MBEDTLS_PARAM_FAILED() when a parameter |
| * that's allowed to be NULL happens to be NULL. |
| * |
| * Note: for functions that return something other that void, |
| * checking that they accept all the parameters they're supposed to |
| * accept is best done by using TEST_ASSERT() and checking the return |
| * value as well. |
| * |
| * Note: this macro is available even when #MBEDTLS_CHECK_PARAMS is |
| * disabled, as it makes sense to check that the functions accept all |
| * legal values even if this option is disabled - only in that case, |
| * the test is more about whether the function segfaults than about |
| * whether it invokes MBEDTLS_PARAM_FAILED(). |
| * |
| * \param TEST The test expression to be tested. |
| */ |
| #define TEST_VALID_PARAM( TEST ) \ |
| TEST_ASSERT( ( TEST, 1 ) ); |
| |
| #define TEST_HELPER_ASSERT(a) if( !( a ) ) \ |
| { \ |
| mbedtls_fprintf( stderr, "Assertion Failed at %s:%d - %s\n", \ |
| __FILE__, __LINE__, #a ); \ |
| mbedtls_exit( 1 ); \ |
| } |
| |
| #if defined(__GNUC__) |
| /* Test if arg and &(arg)[0] have the same type. This is true if arg is |
| * an array but not if it's a pointer. */ |
| #define IS_ARRAY_NOT_POINTER( arg ) \ |
| ( ! __builtin_types_compatible_p( __typeof__( arg ), \ |
| __typeof__( &( arg )[0] ) ) ) |
| #else |
| /* On platforms where we don't know how to implement this check, |
| * omit it. Oh well, a non-portable check is better than nothing. */ |
| #define IS_ARRAY_NOT_POINTER( arg ) 1 |
| #endif |
| |
| /* A compile-time constant with the value 0. If `const_expr` is not a |
| * compile-time constant with a nonzero value, cause a compile-time error. */ |
| #define STATIC_ASSERT_EXPR( const_expr ) \ |
| ( 0 && sizeof( struct { int STATIC_ASSERT : 1 - 2 * ! ( const_expr ); } ) ) |
| /* Return the scalar value `value` (possibly promoted). This is a compile-time |
| * constant if `value` is. `condition` must be a compile-time constant. |
| * If `condition` is false, arrange to cause a compile-time error. */ |
| #define STATIC_ASSERT_THEN_RETURN( condition, value ) \ |
| ( STATIC_ASSERT_EXPR( condition ) ? 0 : ( value ) ) |
| |
| #define ARRAY_LENGTH_UNSAFE( array ) \ |
| ( sizeof( array ) / sizeof( *( array ) ) ) |
| /** Return the number of elements of a static or stack array. |
| * |
| * \param array A value of array (not pointer) type. |
| * |
| * \return The number of elements of the array. |
| */ |
| #define ARRAY_LENGTH( array ) \ |
| ( STATIC_ASSERT_THEN_RETURN( IS_ARRAY_NOT_POINTER( array ), \ |
| ARRAY_LENGTH_UNSAFE( array ) ) ) |
| |
| /** Return the smaller of two values. |
| * |
| * \param x An integer-valued expression without side effects. |
| * \param y An integer-valued expression without side effects. |
| * |
| * \return The smaller of \p x and \p y. |
| */ |
| #define MIN( x, y ) ( ( x ) < ( y ) ? ( x ) : ( y ) ) |
| |
| /** Return the larger of two values. |
| * |
| * \param x An integer-valued expression without side effects. |
| * \param y An integer-valued expression without side effects. |
| * |
| * \return The larger of \p x and \p y. |
| */ |
| #define MAX( x, y ) ( ( x ) > ( y ) ? ( x ) : ( y ) ) |
| |
| /** Allocate memory dynamically and fail the test case if this fails. |
| * |
| * You must set \p pointer to \c NULL before calling this macro and |
| * put `mbedtls_free( pointer )` in the test's cleanup code. |
| * |
| * If \p length is zero, the resulting \p pointer will be \c NULL. |
| * This is usually what we want in tests since API functions are |
| * supposed to accept null pointers when a buffer size is zero. |
| * |
| * This macro expands to an instruction, not an expression. |
| * It may jump to the \c exit label. |
| * |
| * \param pointer An lvalue where the address of the allocated buffer |
| * will be stored. |
| * This expression may be evaluated multiple times. |
| * \param length Number of elements to allocate. |
| * This expression may be evaluated multiple times. |
| * |
| */ |
| #define ASSERT_ALLOC( pointer, length ) \ |
| do \ |
| { \ |
| TEST_ASSERT( ( pointer ) == NULL ); \ |
| if( ( length ) != 0 ) \ |
| { \ |
| ( pointer ) = mbedtls_calloc( sizeof( *( pointer ) ), \ |
| ( length ) ); \ |
| TEST_ASSERT( ( pointer ) != NULL ); \ |
| } \ |
| } \ |
| while( 0 ) |
| |
| /* |
| * 32-bit integer manipulation macros (big endian) |
| */ |
| #ifndef GET_UINT32_BE |
| #define GET_UINT32_BE(n,b,i) \ |
| { \ |
| (n) = ( (uint32_t) (b)[(i) ] << 24 ) \ |
| | ( (uint32_t) (b)[(i) + 1] << 16 ) \ |
| | ( (uint32_t) (b)[(i) + 2] << 8 ) \ |
| | ( (uint32_t) (b)[(i) + 3] ); \ |
| } |
| #endif |
| |
| #ifndef PUT_UINT32_BE |
| #define PUT_UINT32_BE(n,b,i) \ |
| { \ |
| (b)[(i) ] = (unsigned char) ( (n) >> 24 ); \ |
| (b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \ |
| (b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \ |
| (b)[(i) + 3] = (unsigned char) ( (n) ); \ |
| } |
| #endif |
| |
| |
| /*----------------------------------------------------------------------------*/ |
| /* Global variables */ |
| |
| typedef enum |
| { |
| TEST_RESULT_SUCCESS = 0, |
| TEST_RESULT_FAILED, |
| TEST_RESULT_SKIPPED |
| } test_result_t; |
| |
| typedef struct |
| { |
| paramfail_test_state_t paramfail_test_state; |
| test_result_t result; |
| const char *test; |
| const char *filename; |
| int line_no; |
| unsigned long step; |
| } |
| test_info_t; |
| static test_info_t test_info; |
| |
| #if defined(MBEDTLS_PLATFORM_C) |
| mbedtls_platform_context platform_ctx; |
| #endif |
| |
| #if defined(MBEDTLS_CHECK_PARAMS) |
| jmp_buf param_fail_jmp; |
| jmp_buf jmp_tmp; |
| #endif |
| |
| /*----------------------------------------------------------------------------*/ |
| /* Helper flags for complex dependencies */ |
| |
| /* Indicates whether we expect mbedtls_entropy_init |
| * to initialize some strong entropy source. */ |
| #if defined(MBEDTLS_TEST_NULL_ENTROPY) || \ |
| ( !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) && \ |
| ( !defined(MBEDTLS_NO_PLATFORM_ENTROPY) || \ |
| defined(MBEDTLS_HAVEGE_C) || \ |
| defined(MBEDTLS_ENTROPY_HARDWARE_ALT) || \ |
| defined(ENTROPY_NV_SEED) ) ) |
| #define ENTROPY_HAVE_STRONG |
| #endif |
| |
| |
| /*----------------------------------------------------------------------------*/ |
| /* Helper Functions */ |
| |
| /** Set the test step number for failure reports. |
| * |
| * Call this function to display "step NNN" in addition to the line number |
| * and file name if a test fails. Typically the "step number" is the index |
| * of a for loop but it can be whatever you want. |
| * |
| * \param step The step number to report. |
| */ |
| void test_set_step( unsigned long step ) |
| { |
| test_info.step = step; |
| } |
| |
| void test_fail( const char *test, int line_no, const char* filename ) |
| { |
| test_info.result = TEST_RESULT_FAILED; |
| test_info.test = test; |
| test_info.line_no = line_no; |
| test_info.filename = filename; |
| } |
| |
| void test_skip( const char *test, int line_no, const char* filename ) |
| { |
| test_info.result = TEST_RESULT_SKIPPED; |
| test_info.test = test; |
| test_info.line_no = line_no; |
| test_info.filename = filename; |
| } |
| |
| static int platform_setup() |
| { |
| int ret = 0; |
| #if defined(MBEDTLS_PLATFORM_C) |
| ret = mbedtls_platform_setup( &platform_ctx ); |
| #endif /* MBEDTLS_PLATFORM_C */ |
| return( ret ); |
| } |
| |
| static void platform_teardown() |
| { |
| #if defined(MBEDTLS_PLATFORM_C) |
| mbedtls_platform_teardown( &platform_ctx ); |
| #endif /* MBEDTLS_PLATFORM_C */ |
| } |
| |
| #if defined(MBEDTLS_CHECK_PARAMS) |
| void mbedtls_param_failed( const char *failure_condition, |
| const char *file, |
| int line ) |
| { |
| /* If we are testing the callback function... */ |
| if( test_info.paramfail_test_state == PARAMFAIL_TESTSTATE_PENDING ) |
| { |
| test_info.paramfail_test_state = PARAMFAIL_TESTSTATE_CALLED; |
| } |
| else |
| { |
| /* ...else we treat this as an error */ |
| |
| /* Record the location of the failure, but not as a failure yet, in case |
| * it was part of the test */ |
| test_fail( failure_condition, line, file ); |
| test_info.result = TEST_RESULT_SUCCESS; |
| |
| longjmp( param_fail_jmp, 1 ); |
| } |
| } |
| #endif |
| |
| #if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) |
| static int redirect_output( FILE** out_stream, const char* path ) |
| { |
| int stdout_fd = dup( fileno( *out_stream ) ); |
| |
| if( stdout_fd == -1 ) |
| { |
| return -1; |
| } |
| |
| fflush( *out_stream ); |
| fclose( *out_stream ); |
| *out_stream = fopen( path, "w" ); |
| |
| if( *out_stream == NULL ) |
| { |
| close( stdout_fd ); |
| return -1; |
| } |
| |
| return stdout_fd; |
| } |
| |
| static int restore_output( FILE** out_stream, int old_fd ) |
| { |
| fflush( *out_stream ); |
| fclose( *out_stream ); |
| |
| *out_stream = fdopen( old_fd, "w" ); |
| if( *out_stream == NULL ) |
| { |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| static void close_output( FILE* out_stream ) |
| { |
| fclose( out_stream ); |
| } |
| #endif /* __unix__ || __APPLE__ __MACH__ */ |
| |
| int unhexify( unsigned char *obuf, const char *ibuf ) |
| { |
| unsigned char c, c2; |
| int len = strlen( ibuf ) / 2; |
| TEST_HELPER_ASSERT( strlen( ibuf ) % 2 == 0 ); /* must be even number of bytes */ |
| |
| while( *ibuf != 0 ) |
| { |
| c = *ibuf++; |
| if( c >= '0' && c <= '9' ) |
| c -= '0'; |
| else if( c >= 'a' && c <= 'f' ) |
| c -= 'a' - 10; |
| else if( c >= 'A' && c <= 'F' ) |
| c -= 'A' - 10; |
| else |
| TEST_HELPER_ASSERT( 0 ); |
| |
| c2 = *ibuf++; |
| if( c2 >= '0' && c2 <= '9' ) |
| c2 -= '0'; |
| else if( c2 >= 'a' && c2 <= 'f' ) |
| c2 -= 'a' - 10; |
| else if( c2 >= 'A' && c2 <= 'F' ) |
| c2 -= 'A' - 10; |
| else |
| TEST_HELPER_ASSERT( 0 ); |
| |
| *obuf++ = ( c << 4 ) | c2; |
| } |
| |
| return len; |
| } |
| |
| void hexify( unsigned char *obuf, const unsigned char *ibuf, int len ) |
| { |
| unsigned char l, h; |
| |
| while( len != 0 ) |
| { |
| h = *ibuf / 16; |
| l = *ibuf % 16; |
| |
| if( h < 10 ) |
| *obuf++ = '0' + h; |
| else |
| *obuf++ = 'a' + h - 10; |
| |
| if( l < 10 ) |
| *obuf++ = '0' + l; |
| else |
| *obuf++ = 'a' + l - 10; |
| |
| ++ibuf; |
| len--; |
| } |
| } |
| |
| /** |
| * Allocate and zeroize a buffer. |
| * |
| * If the size if zero, a pointer to a zeroized 1-byte buffer is returned. |
| * |
| * For convenience, dies if allocation fails. |
| */ |
| static unsigned char *zero_alloc( size_t len ) |
| { |
| void *p; |
| size_t actual_len = ( len != 0 ) ? len : 1; |
| |
| p = mbedtls_calloc( 1, actual_len ); |
| TEST_HELPER_ASSERT( p != NULL ); |
| |
| memset( p, 0x00, actual_len ); |
| |
| return( p ); |
| } |
| |
| /** |
| * Allocate and fill a buffer from hex data. |
| * |
| * The buffer is sized exactly as needed. This allows to detect buffer |
| * overruns (including overreads) when running the test suite under valgrind. |
| * |
| * If the size if zero, a pointer to a zeroized 1-byte buffer is returned. |
| * |
| * For convenience, dies if allocation fails. |
| */ |
| unsigned char *unhexify_alloc( const char *ibuf, size_t *olen ) |
| { |
| unsigned char *obuf; |
| |
| *olen = strlen( ibuf ) / 2; |
| |
| if( *olen == 0 ) |
| return( zero_alloc( *olen ) ); |
| |
| obuf = mbedtls_calloc( 1, *olen ); |
| TEST_HELPER_ASSERT( obuf != NULL ); |
| |
| (void) unhexify( obuf, ibuf ); |
| |
| return( obuf ); |
| } |
| |
| /** |
| * This function just returns data from rand(). |
| * Although predictable and often similar on multiple |
| * runs, this does not result in identical random on |
| * each run. So do not use this if the results of a |
| * test depend on the random data that is generated. |
| * |
| * rng_state shall be NULL. |
| */ |
| static int rnd_std_rand( void *rng_state, unsigned char *output, size_t len ) |
| { |
| #if !defined(__OpenBSD__) |
| size_t i; |
| |
| if( rng_state != NULL ) |
| rng_state = NULL; |
| |
| for( i = 0; i < len; ++i ) |
| output[i] = rand(); |
| #else |
| if( rng_state != NULL ) |
| rng_state = NULL; |
| |
| arc4random_buf( output, len ); |
| #endif /* !OpenBSD */ |
| |
| return( 0 ); |
| } |
| |
| /** |
| * This function only returns zeros |
| * |
| * rng_state shall be NULL. |
| */ |
| int rnd_zero_rand( void *rng_state, unsigned char *output, size_t len ) |
| { |
| if( rng_state != NULL ) |
| rng_state = NULL; |
| |
| memset( output, 0, len ); |
| |
| return( 0 ); |
| } |
| |
| typedef struct |
| { |
| unsigned char *buf; |
| size_t length; |
| } rnd_buf_info; |
| |
| /** |
| * This function returns random based on a buffer it receives. |
| * |
| * rng_state shall be a pointer to a rnd_buf_info structure. |
| * |
| * The number of bytes released from the buffer on each call to |
| * the random function is specified by per_call. (Can be between |
| * 1 and 4) |
| * |
| * After the buffer is empty it will return rand(); |
| */ |
| int rnd_buffer_rand( void *rng_state, unsigned char *output, size_t len ) |
| { |
| rnd_buf_info *info = (rnd_buf_info *) rng_state; |
| size_t use_len; |
| |
| if( rng_state == NULL ) |
| return( rnd_std_rand( NULL, output, len ) ); |
| |
| use_len = len; |
| if( len > info->length ) |
| use_len = info->length; |
| |
| if( use_len ) |
| { |
| memcpy( output, info->buf, use_len ); |
| info->buf += use_len; |
| info->length -= use_len; |
| } |
| |
| if( len - use_len > 0 ) |
| return( rnd_std_rand( NULL, output + use_len, len - use_len ) ); |
| |
| return( 0 ); |
| } |
| |
| /** |
| * Info structure for the pseudo random function |
| * |
| * Key should be set at the start to a test-unique value. |
| * Do not forget endianness! |
| * State( v0, v1 ) should be set to zero. |
| */ |
| typedef struct |
| { |
| uint32_t key[16]; |
| uint32_t v0, v1; |
| } rnd_pseudo_info; |
| |
| /** |
| * This function returns random based on a pseudo random function. |
| * This means the results should be identical on all systems. |
| * Pseudo random is based on the XTEA encryption algorithm to |
| * generate pseudorandom. |
| * |
| * rng_state shall be a pointer to a rnd_pseudo_info structure. |
| */ |
| int rnd_pseudo_rand( void *rng_state, unsigned char *output, size_t len ) |
| { |
| rnd_pseudo_info *info = (rnd_pseudo_info *) rng_state; |
| uint32_t i, *k, sum, delta=0x9E3779B9; |
| unsigned char result[4], *out = output; |
| |
| if( rng_state == NULL ) |
| return( rnd_std_rand( NULL, output, len ) ); |
| |
| k = info->key; |
| |
| while( len > 0 ) |
| { |
| size_t use_len = ( len > 4 ) ? 4 : len; |
| sum = 0; |
| |
| for( i = 0; i < 32; i++ ) |
| { |
| info->v0 += ( ( ( info->v1 << 4 ) ^ ( info->v1 >> 5 ) ) |
| + info->v1 ) ^ ( sum + k[sum & 3] ); |
| sum += delta; |
| info->v1 += ( ( ( info->v0 << 4 ) ^ ( info->v0 >> 5 ) ) |
| + info->v0 ) ^ ( sum + k[( sum>>11 ) & 3] ); |
| } |
| |
| PUT_UINT32_BE( info->v0, result, 0 ); |
| memcpy( out, result, use_len ); |
| len -= use_len; |
| out += 4; |
| } |
| |
| return( 0 ); |
| } |
| |
| int hexcmp( uint8_t * a, uint8_t * b, uint32_t a_len, uint32_t b_len ) |
| { |
| int ret = 0; |
| uint32_t i = 0; |
| |
| if( a_len != b_len ) |
| return( -1 ); |
| |
| for( i = 0; i < a_len; i++ ) |
| { |
| if( a[i] != b[i] ) |
| { |
| ret = -1; |
| break; |
| } |
| } |
| return ret; |
| } |