eden-emu/mbedtls
15
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

tls: Add overread/overwrite check failure tracking

Browse source 
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2022-06-10 17:18:09 +02:00
parent e3dac4aaa1
commit ad8c17b9c6
2 changed files with 51 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

25
library/ssl_misc.h
View file

@ -381,11 +381,36 @@ static inline size_t mbedtls_ssl_get_input_buflen( const mbedtls_ssl_context *ct
* \return Zero if the needed space is available in the buffer, non-zero
* otherwise.
*/
#if ! defined(MBEDTLS_TEST_HOOKS)
static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur,
const uint8_t *end, size_t need )
{
return( ( cur > end ) || ( need > (size_t)( end - cur ) ) );
}
#else
typedef struct
{
const uint8_t *cur;
const uint8_t *end;
size_t need;
} mbedtls_ssl_chk_buf_ptr_args;
void mbedtls_ssl_set_chk_buf_ptr_fail_args(
const uint8_t *cur, const uint8_t *end, size_t need );
void mbedtls_ssl_reset_chk_buf_ptr_fail_args( void );
int mbedtls_ssl_cmp_chk_buf_ptr_fail_args( mbedtls_ssl_chk_buf_ptr_args *args );
static inline int mbedtls_ssl_chk_buf_ptr( const uint8_t *cur,
const uint8_t *end, size_t need )
{
if( ( cur > end ) || ( need > (size_t)( end - cur ) ) )
{
mbedtls_ssl_set_chk_buf_ptr_fail_args( cur, end, need );
return( 1 );
}
return( 0 );
}
#endif
/**
* \brief This macro checks if the remaining size in a buffer is