forked from mirrors/linux
b4d0d230cc
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 114 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520170857.552531963@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* ASN.1 BER/DER/CER parsing state machine internal definitions
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*
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* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#ifndef _LINUX_ASN1_BER_BYTECODE_H
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#define _LINUX_ASN1_BER_BYTECODE_H
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#ifdef __KERNEL__
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#include <linux/types.h>
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#endif
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#include <linux/asn1.h>
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typedef int (*asn1_action_t)(void *context,
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size_t hdrlen, /* In case of ANY type */
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unsigned char tag, /* In case of ANY type */
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const void *value, size_t vlen);
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struct asn1_decoder {
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const unsigned char *machine;
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size_t machlen;
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const asn1_action_t *actions;
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};
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enum asn1_opcode {
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/* The tag-matching ops come first and the odd-numbered slots
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* are for OR_SKIP ops.
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*/
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#define ASN1_OP_MATCH__SKIP 0x01
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#define ASN1_OP_MATCH__ACT 0x02
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#define ASN1_OP_MATCH__JUMP 0x04
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#define ASN1_OP_MATCH__ANY 0x08
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#define ASN1_OP_MATCH__COND 0x10
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ASN1_OP_MATCH = 0x00,
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ASN1_OP_MATCH_OR_SKIP = 0x01,
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ASN1_OP_MATCH_ACT = 0x02,
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ASN1_OP_MATCH_ACT_OR_SKIP = 0x03,
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ASN1_OP_MATCH_JUMP = 0x04,
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ASN1_OP_MATCH_JUMP_OR_SKIP = 0x05,
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ASN1_OP_MATCH_ANY = 0x08,
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ASN1_OP_MATCH_ANY_OR_SKIP = 0x09,
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ASN1_OP_MATCH_ANY_ACT = 0x0a,
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ASN1_OP_MATCH_ANY_ACT_OR_SKIP = 0x0b,
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/* Everything before here matches unconditionally */
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ASN1_OP_COND_MATCH_OR_SKIP = 0x11,
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ASN1_OP_COND_MATCH_ACT_OR_SKIP = 0x13,
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ASN1_OP_COND_MATCH_JUMP_OR_SKIP = 0x15,
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ASN1_OP_COND_MATCH_ANY = 0x18,
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ASN1_OP_COND_MATCH_ANY_OR_SKIP = 0x19,
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ASN1_OP_COND_MATCH_ANY_ACT = 0x1a,
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ASN1_OP_COND_MATCH_ANY_ACT_OR_SKIP = 0x1b,
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/* Everything before here will want a tag from the data */
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#define ASN1_OP__MATCHES_TAG ASN1_OP_COND_MATCH_ANY_ACT_OR_SKIP
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/* These are here to help fill up space */
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ASN1_OP_COND_FAIL = 0x1c,
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ASN1_OP_COMPLETE = 0x1d,
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ASN1_OP_ACT = 0x1e,
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ASN1_OP_MAYBE_ACT = 0x1f,
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/* The following eight have bit 0 -> SET, 1 -> OF, 2 -> ACT */
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ASN1_OP_END_SEQ = 0x20,
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ASN1_OP_END_SET = 0x21,
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ASN1_OP_END_SEQ_OF = 0x22,
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ASN1_OP_END_SET_OF = 0x23,
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ASN1_OP_END_SEQ_ACT = 0x24,
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ASN1_OP_END_SET_ACT = 0x25,
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ASN1_OP_END_SEQ_OF_ACT = 0x26,
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ASN1_OP_END_SET_OF_ACT = 0x27,
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#define ASN1_OP_END__SET 0x01
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#define ASN1_OP_END__OF 0x02
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#define ASN1_OP_END__ACT 0x04
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ASN1_OP_RETURN = 0x28,
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ASN1_OP__NR
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};
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#define _tag(CLASS, CP, TAG) ((ASN1_##CLASS << 6) | (ASN1_##CP << 5) | ASN1_##TAG)
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#define _tagn(CLASS, CP, TAG) ((ASN1_##CLASS << 6) | (ASN1_##CP << 5) | TAG)
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#define _jump_target(N) (N)
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#define _action(N) (N)
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#endif /* _LINUX_ASN1_BER_BYTECODE_H */
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