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#ifndef _IPXE_ASN1_H
#define _IPXE_ASN1_H
/** @file
*
* ASN.1 encoding
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#define ASN1_INTEGER 0x02
#define ASN1_BIT_STRING 0x03
#define ASN1_OCTET_STRING 0x04
#define ASN1_NULL 0x05
#define ASN1_OID 0x06
#define ASN1_SEQUENCE 0x30
#define ASN1_IP_ADDRESS 0x40
#define ASN1_EXPLICIT_TAG 0xa0
/**
* A DER-encoded ASN.1 object cursor
*/
struct asn1_cursor {
/** Start of data */
void *data;
/** Length of data */
size_t len;
};
/**
* Invalidate ASN.1 object cursor
*
* @v cursor ASN.1 object cursor
*/
static inline __attribute__ (( always_inline )) void
asn1_invalidate_cursor ( struct asn1_cursor *cursor ) {
cursor->len = 0;
}
extern int asn1_enter ( struct asn1_cursor *cursor, unsigned int type );
extern int asn1_skip_if_exists ( struct asn1_cursor *cursor,
unsigned int type );
extern int asn1_skip ( struct asn1_cursor *cursor, unsigned int type );
#endif /* _IPXE_ASN1_H */
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