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Extract code to separate function for readablity

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This commit is contained in:
Manuel Pégourié-Gonnard 2017-07-05 17:18:42 +02:00
parent ce6e52ff42
commit a707e1d1ef
1 changed files with 32 additions and 16 deletions
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48
library/x509_crt.c
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@ -2239,6 +2239,36 @@ static void x509_crt_verify_name( const mbedtls_x509_crt *crt,
} }
} }
/*
* Merge the flags for all certs in the chain, after calling callback
*/
static int x509_crt_merge_flags_with_cb(
uint32_t *flags,
x509_crt_verify_chain_item ver_chain[X509_MAX_VERIFY_CHAIN_SIZE],
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
void *p_vrfy )
{
int ret;
size_t i, j;
uint32_t cur_flags;
for( i = X509_MAX_VERIFY_CHAIN_SIZE; i != 0; --i )
{
if( ver_chain[i-1].crt == NULL )
continue;
cur_flags = ver_chain[i-1].flags;
if( NULL != f_vrfy )
if( ( ret = f_vrfy( p_vrfy, ver_chain[i-1].crt, i-1, &cur_flags ) ) != 0 )
return( ret );
*flags |= cur_flags;
}
return( 0 );
}
/* /*
* Verify the certificate validity * Verify the certificate validity
*/ */
@ -2272,8 +2302,6 @@ int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt,
int ret; int ret;
mbedtls_pk_type_t pk_type; mbedtls_pk_type_t pk_type;
x509_crt_verify_chain_item ver_chain[X509_MAX_VERIFY_CHAIN_SIZE]; x509_crt_verify_chain_item ver_chain[X509_MAX_VERIFY_CHAIN_SIZE];
size_t i;
uint32_t cur_flags;
uint32_t *ee_flags = &ver_chain[0].flags; uint32_t *ee_flags = &ver_chain[0].flags;
*flags = 0; *flags = 0;
@ -2303,20 +2331,8 @@ int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt,
if( ret != 0 ) if( ret != 0 )
goto exit; goto exit;
/* Build final flags, calling calback on the way if any */ /* Build final flags, calling callback on the way if any */
for( i = X509_MAX_VERIFY_CHAIN_SIZE; i != 0; --i ) ret = x509_crt_merge_flags_with_cb( flags, ver_chain, f_vrfy, p_vrfy );
{
if( ver_chain[i-1].crt == NULL )
continue;
cur_flags = ver_chain[i-1].flags;
if( NULL != f_vrfy )
if( ( ret = f_vrfy( p_vrfy, ver_chain[i-1].crt, i-1, &cur_flags ) ) != 0 )
goto exit;
*flags |= cur_flags;
}
exit: exit:
/* prevent misuse of the vrfy callback - VERIFY_FAILED would be ignored by /* prevent misuse of the vrfy callback - VERIFY_FAILED would be ignored by