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Fix memory allocation in ccm tests

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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
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1
tests/suites/helpers.function
View file

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

3
tests/suites/test_suite_ccm.data
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 #9 tag length 0
ccm_lengths:5:10:5:0:MBEDTLS_ERR_CCM_BAD_INPUT 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* fixed tag lengths #1 all OK
ccm_star_lengths:5:10:5:8:0 ccm_star_lengths:5:10:5:8:0

5
tests/suites/test_suite_ccm.function
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 key[16];
unsigned char msg[10]; unsigned char msg[10];
unsigned char iv[14]; unsigned char iv[14];
unsigned char add[10]; unsigned char *add = NULL;
unsigned char out[10]; unsigned char out[10];
unsigned char tag[18]; unsigned char tag[18];
int decrypt_ret; int decrypt_ret;
mbedtls_ccm_init( &ctx ); mbedtls_ccm_init( &ctx );
ASSERT_ALLOC_WEAK( add, add_len );
memset( key, 0, sizeof( key ) ); memset( key, 0, sizeof( key ) );
memset( msg, 0, sizeof( msg ) ); memset( msg, 0, sizeof( msg ) );
memset( iv, 0, sizeof( iv ) ); memset( iv, 0, sizeof( iv ) );
memset( add, 0, sizeof( add ) );
memset( out, 0, sizeof( out ) ); memset( out, 0, sizeof( out ) );
memset( tag, 0, sizeof( tag ) ); 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 ); TEST_ASSERT( decrypt_ret == res );
exit: exit:
mbedtls_free( add );
mbedtls_ccm_free( &ctx ); mbedtls_ccm_free( &ctx );
} }
/* END_CASE */ /* END_CASE */