Fix memory allocation in ccm tests

The ccm tests were previously relying on unspecified behaviour in
the underlying implementation (i.e. that it rejects certain buffer
sizes without reading the buffer).

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2020-10-15 14:00:40 +01:00
parent 8f24a8bb34
commit 2e680348ad
3 changed files with 7 additions and 2 deletions

View file

@ -121,6 +121,7 @@ typedef struct data_tag
TEST_ASSERT( ( expr1 ) == ( expr2 ) )
/** Allocate memory dynamically and fail the test case if this fails.
* The allocated memory will be filled with zeros.
*
* You must set \p pointer to \c NULL before calling this macro and
* put `mbedtls_free( pointer )` in the test's cleanup code.

View file

@ -51,6 +51,9 @@ ccm_lengths:65536:13:5:8:MBEDTLS_ERR_CCM_BAD_INPUT
CCM lengths #9 tag length 0
ccm_lengths:5:10:5:0:MBEDTLS_ERR_CCM_BAD_INPUT
CCM lengths #10 Large AD
ccm_lengths:5:10:32768:8:0
CCM* fixed tag lengths #1 all OK
ccm_star_lengths:5:10:5:8:0

View file

@ -41,17 +41,17 @@ void ccm_lengths( int msg_len, int iv_len, int add_len, int tag_len, int res )
unsigned char key[16];
unsigned char msg[10];
unsigned char iv[14];
unsigned char add[10];
unsigned char *add = NULL;
unsigned char out[10];
unsigned char tag[18];
int decrypt_ret;
mbedtls_ccm_init( &ctx );
ASSERT_ALLOC_WEAK( add, add_len );
memset( key, 0, sizeof( key ) );
memset( msg, 0, sizeof( msg ) );
memset( iv, 0, sizeof( iv ) );
memset( add, 0, sizeof( add ) );
memset( out, 0, sizeof( out ) );
memset( tag, 0, sizeof( tag ) );
@ -70,6 +70,7 @@ void ccm_lengths( int msg_len, int iv_len, int add_len, int tag_len, int res )
TEST_ASSERT( decrypt_ret == res );
exit:
mbedtls_free( add );
mbedtls_ccm_free( &ctx );
}
/* END_CASE */