Commit 2b12196d authored by AKASHI Takahiro's avatar AKASHI Takahiro Committed by Tom Rini

cmd: add asn1_compiler

Imported from linux kernel v5.3:
 asn1.h without changes
 asn1_ber_bytecode.h without changes
 asn1_decoder.h without changes
 asn1_compiler.c without changes

This host command will be used to create a ASN1 parser, for example,
for pkcs7 messages or x509 certificates. More specifically, it will
generate *byte code* which will be interpreted by asn1 decoder library.
Signed-off-by: default avatarAKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt's avatarHeinrich Schuchardt <xypron.glpk@gmx.de>
parent bd3c3dd7
/* SPDX-License-Identifier: GPL-2.0-or-later */
/* ASN.1 BER/DER/CER encoding definitions
*
* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#ifndef _LINUX_ASN1_H
#define _LINUX_ASN1_H
/* Class */
enum asn1_class {
ASN1_UNIV = 0, /* Universal */
ASN1_APPL = 1, /* Application */
ASN1_CONT = 2, /* Context */
ASN1_PRIV = 3 /* Private */
};
#define ASN1_CLASS_BITS 0xc0
enum asn1_method {
ASN1_PRIM = 0, /* Primitive */
ASN1_CONS = 1 /* Constructed */
};
#define ASN1_CONS_BIT 0x20
/* Tag */
enum asn1_tag {
ASN1_EOC = 0, /* End Of Contents or N/A */
ASN1_BOOL = 1, /* Boolean */
ASN1_INT = 2, /* Integer */
ASN1_BTS = 3, /* Bit String */
ASN1_OTS = 4, /* Octet String */
ASN1_NULL = 5, /* Null */
ASN1_OID = 6, /* Object Identifier */
ASN1_ODE = 7, /* Object Description */
ASN1_EXT = 8, /* External */
ASN1_REAL = 9, /* Real float */
ASN1_ENUM = 10, /* Enumerated */
ASN1_EPDV = 11, /* Embedded PDV */
ASN1_UTF8STR = 12, /* UTF8 String */
ASN1_RELOID = 13, /* Relative OID */
/* 14 - Reserved */
/* 15 - Reserved */
ASN1_SEQ = 16, /* Sequence and Sequence of */
ASN1_SET = 17, /* Set and Set of */
ASN1_NUMSTR = 18, /* Numerical String */
ASN1_PRNSTR = 19, /* Printable String */
ASN1_TEXSTR = 20, /* T61 String / Teletext String */
ASN1_VIDSTR = 21, /* Videotex String */
ASN1_IA5STR = 22, /* IA5 String */
ASN1_UNITIM = 23, /* Universal Time */
ASN1_GENTIM = 24, /* General Time */
ASN1_GRASTR = 25, /* Graphic String */
ASN1_VISSTR = 26, /* Visible String */
ASN1_GENSTR = 27, /* General String */
ASN1_UNISTR = 28, /* Universal String */
ASN1_CHRSTR = 29, /* Character String */
ASN1_BMPSTR = 30, /* BMP String */
ASN1_LONG_TAG = 31 /* Long form tag */
};
#define ASN1_INDEFINITE_LENGTH 0x80
#endif /* _LINUX_ASN1_H */
/* SPDX-License-Identifier: GPL-2.0-or-later */
/* 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)
*/
#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 */
/* SPDX-License-Identifier: GPL-2.0-or-later */
/* ASN.1 decoder
*
* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#ifndef _LINUX_ASN1_DECODER_H
#define _LINUX_ASN1_DECODER_H
#include <linux/asn1.h>
struct asn1_decoder;
extern int asn1_ber_decoder(const struct asn1_decoder *decoder,
void *context,
const unsigned char *data,
size_t datalen);
#endif /* _LINUX_ASN1_DECODER_H */
......@@ -566,6 +566,9 @@ config SMBIOS_PRODUCT_NAME
endmenu
config ASN1_COMPILER
bool
source lib/efi/Kconfig
source lib/efi_loader/Kconfig
source lib/optee/Kconfig
......
......@@ -328,10 +328,10 @@ $(obj)/%.lds: $(src)/%.lds.S FORCE
# ASN.1 grammar
# ---------------------------------------------------------------------------
quiet_cmd_asn1_compiler = ASN.1 $@
cmd_asn1_compiler = $(objtree)/scripts/asn1_compiler $< \
cmd_asn1_compiler = $(objtree)/tools/asn1_compiler $< \
$(subst .h,.c,$@) $(subst .c,.h,$@)
$(obj)/%-asn1.c $(obj)/%-asn1.h: $(src)/%.asn1 $(objtree)/scripts/asn1_compiler
$(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/tools/asn1_compiler
$(call cmd,asn1_compiler)
# Build the compiled-in targets
......
......@@ -207,6 +207,9 @@ endif
hostprogs-$(CONFIG_MIPS) += mips-relocs
hostprogs-$(CONFIG_ASN1_COMPILER) += asn1_compiler
HOSTCFLAGS_asn1_compiler.o = -idirafter $(srctree)/include
# We build some files with extra pedantic flags to try to minimize things
# that won't build on some weird host compiler -- though there are lots of
# exceptions for files that aren't complaint.
......
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