mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
|
/* ASN.1 BER/DER/CER parsing state machine internal definitions
|
||
|
|
*
|
||
|
|
* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
|
||
|
|
* Written by David Howells (dhowells@redhat.com)
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public Licence
|
||
|
|
* as published by the Free Software Foundation; either version
|
||
|
|
* 2 of the Licence, or (at your option) any later version.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _LINUX_ASN1_BER_BYTECODE_H
|
||
|
|
#define _LINUX_ASN1_BER_BYTECODE_H
|
||
|
|
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
#include <linux/types.h>
|
||
|
|
#endif
|
||
|
|
#include <linux/asn1.h>
|
||
|
|
|
||
|
|
typedef int (*asn1_action_t)(void *context,
|
||
|
|
size_t hdrlen, /* In case of ANY type */
|
||
|
|
unsigned char tag, /* In case of ANY type */
|
||
|
|
const void *value, size_t vlen);
|
||
|
|
|
||
|
|
struct asn1_decoder {
|
||
|
|
const unsigned char *machine;
|
||
|
|
size_t machlen;
|
||
|
|
const asn1_action_t *actions;
|
||
|
|
};
|
||
|
|
|
||
|
|
enum asn1_opcode {
|
||
|
|
/* The tag-matching ops come first and the odd-numbered slots
|
||
|
|
* are for OR_SKIP ops.
|
||
|
|
*/
|
||
|
|
#define ASN1_OP_MATCH__SKIP 0x01
|
||
|
|
#define ASN1_OP_MATCH__ACT 0x02
|
||
|
|
#define ASN1_OP_MATCH__JUMP 0x04
|
||
|
|
#define ASN1_OP_MATCH__ANY 0x08
|
||
|
|
#define ASN1_OP_MATCH__COND 0x10
|
||
|
|
|
||
|
|
ASN1_OP_MATCH = 0x00,
|
||
|
|
ASN1_OP_MATCH_OR_SKIP = 0x01,
|
||
|
|
ASN1_OP_MATCH_ACT = 0x02,
|
||
|
|
ASN1_OP_MATCH_ACT_OR_SKIP = 0x03,
|
||
|
|
ASN1_OP_MATCH_JUMP = 0x04,
|
||
|
|
ASN1_OP_MATCH_JUMP_OR_SKIP = 0x05,
|
||
|
|
ASN1_OP_MATCH_ANY = 0x08,
|
||
|
|
ASN1_OP_MATCH_ANY_ACT = 0x0a,
|
||
|
|
/* Everything before here matches unconditionally */
|
||
|
|
|
||
|
|
ASN1_OP_COND_MATCH_OR_SKIP = 0x11,
|
||
|
|
ASN1_OP_COND_MATCH_ACT_OR_SKIP = 0x13,
|
||
|
|
ASN1_OP_COND_MATCH_JUMP_OR_SKIP = 0x15,
|
||
|
|
ASN1_OP_COND_MATCH_ANY = 0x18,
|
||
|
|
ASN1_OP_COND_MATCH_ANY_ACT = 0x1a,
|
||
|
|
|
||
|
|
/* Everything before here will want a tag from the data */
|
||
|
|
#define ASN1_OP__MATCHES_TAG ASN1_OP_COND_MATCH_ANY_ACT
|
||
|
|
|
||
|
|
/* These are here to help fill up space */
|
||
|
|
ASN1_OP_COND_FAIL = 0x1b,
|
||
|
|
ASN1_OP_COMPLETE = 0x1c,
|
||
|
|
ASN1_OP_ACT = 0x1d,
|
||
|
|
ASN1_OP_RETURN = 0x1e,
|
||
|
|
|
||
|
|
/* The following eight have bit 0 -> SET, 1 -> OF, 2 -> ACT */
|
||
|
|
ASN1_OP_END_SEQ = 0x20,
|
||
|
|
ASN1_OP_END_SET = 0x21,
|
||
|
|
ASN1_OP_END_SEQ_OF = 0x22,
|
||
|
|
ASN1_OP_END_SET_OF = 0x23,
|
||
|
|
ASN1_OP_END_SEQ_ACT = 0x24,
|
||
|
|
ASN1_OP_END_SET_ACT = 0x25,
|
||
|
|
ASN1_OP_END_SEQ_OF_ACT = 0x26,
|
||
|
|
ASN1_OP_END_SET_OF_ACT = 0x27,
|
||
|
|
#define ASN1_OP_END__SET 0x01
|
||
|
|
#define ASN1_OP_END__OF 0x02
|
||
|
|
#define ASN1_OP_END__ACT 0x04
|
||
|
|
|
||
|
|
ASN1_OP__NR
|
||
|
|
};
|
||
|
|
|
||
|
|
#define _tag(CLASS, CP, TAG) ((ASN1_##CLASS << 6) | (ASN1_##CP << 5) | ASN1_##TAG)
|
||
|
|
#define _tagn(CLASS, CP, TAG) ((ASN1_##CLASS << 6) | (ASN1_##CP << 5) | TAG)
|
||
|
|
#define _jump_target(N) (N)
|
||
|
|
#define _action(N) (N)
|
||
|
|
|
||
|
|
#endif /* _LINUX_ASN1_BER_BYTECODE_H */
|