lib/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2025-08-08 17:42:09 +03:00
Code Activity

Add ASN.1 ENUMERATED tag support

Browse Source 
Add ASN.1 ENUMERATED [1] tag to supported tag list.

1. https://tools.ietf.org/html/rfc3641#page-8

Signed-off-by: Mykhailo Sopiha <mykhailo.sopiha@linaro.org>
This commit is contained in:
Mykhailo Sopiha
2019-10-29 15:58:10 +02:00
parent 0eaf49c9be
commit 20180ca919
4 changed files with 71 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
library/asn1parse.c
View File

@@ -139,17 +139,20 @@ int mbedtls_asn1_get_bool( unsigned char **p,
return( 0 );
}
int mbedtls_asn1_get_int( unsigned char **p,
const unsigned char *end,
int *val )
static int asn1_get_tagged_int( unsigned char **p,
const unsigned char *end,
int tag, int *val )
{
int ret;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_INTEGER ) ) != 0 )
if( ( ret = mbedtls_asn1_get_tag( p, end, &len, tag ) ) != 0 )
return( ret );
/* len==0 is malformed (0 must be represented as 020100). */
/*
* len==0 is malformed (0 must be represented as 020100 for INTEGER,
* or 0A0100 for ENUMERATED tags
*/
if( len == 0 )
return( MBEDTLS_ERR_ASN1_INVALID_LENGTH );
/* This is a cryptography library. Reject negative integers. */
@@ -180,6 +183,20 @@ int mbedtls_asn1_get_int( unsigned char **p,
return( 0 );
}
int mbedtls_asn1_get_int( unsigned char **p,
const unsigned char *end,
int *val )
{
return( asn1_get_tagged_int( p, end, MBEDTLS_ASN1_INTEGER, val) );
}
int mbedtls_asn1_get_enum( unsigned char **p,
const unsigned char *end,
int *val )
{
return( asn1_get_tagged_int( p, end, MBEDTLS_ASN1_ENUMERATED, val) );
}
#if defined(MBEDTLS_BIGNUM_C)
int mbedtls_asn1_get_mpi( unsigned char **p,
const unsigned char *end,