/* 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_OR_SKIP	= 0x09,	ASN1_OP_MATCH_ANY_ACT		= 0x0a,	ASN1_OP_MATCH_ANY_ACT_OR_SKIP	= 0x0b,	/* 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_OR_SKIP	= 0x19,	ASN1_OP_COND_MATCH_ANY_ACT	= 0x1a,	ASN1_OP_COND_MATCH_ANY_ACT_OR_SKIP = 0x1b, 	/* Everything before here will want a tag from the data */#define ASN1_OP__MATCHES_TAG ASN1_OP_COND_MATCH_ANY_ACT_OR_SKIP 	/* These are here to help fill up space */	ASN1_OP_COND_FAIL		= 0x1c,	ASN1_OP_COMPLETE		= 0x1d,	ASN1_OP_ACT			= 0x1e,	ASN1_OP_MAYBE_ACT		= 0x1f, 	/* 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_RETURN			= 0x28, 	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 */