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-rw-r--r--include/linux/asn1.h67
-rw-r--r--include/linux/asn1_ber_bytecode.h87
2 files changed, 154 insertions, 0 deletions
diff --git a/include/linux/asn1.h b/include/linux/asn1.h
new file mode 100644
index 000000000000..5c3f4e4b9a23
--- /dev/null
+++ b/include/linux/asn1.h
@@ -0,0 +1,67 @@
1/* ASN.1 BER/DER/CER encoding definitions
2 *
3 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12#ifndef _LINUX_ASN1_H
13#define _LINUX_ASN1_H
14
15/* Class */
16enum asn1_class {
17 ASN1_UNIV = 0, /* Universal */
18 ASN1_APPL = 1, /* Application */
19 ASN1_CONT = 2, /* Context */
20 ASN1_PRIV = 3 /* Private */
21};
22#define ASN1_CLASS_BITS 0xc0
23
24
25enum asn1_method {
26 ASN1_PRIM = 0, /* Primitive */
27 ASN1_CONS = 1 /* Constructed */
28};
29#define ASN1_CONS_BIT 0x20
30
31/* Tag */
32enum asn1_tag {
33 ASN1_EOC = 0, /* End Of Contents or N/A */
34 ASN1_BOOL = 1, /* Boolean */
35 ASN1_INT = 2, /* Integer */
36 ASN1_BTS = 3, /* Bit String */
37 ASN1_OTS = 4, /* Octet String */
38 ASN1_NULL = 5, /* Null */
39 ASN1_OID = 6, /* Object Identifier */
40 ASN1_ODE = 7, /* Object Description */
41 ASN1_EXT = 8, /* External */
42 ASN1_REAL = 9, /* Real float */
43 ASN1_ENUM = 10, /* Enumerated */
44 ASN1_EPDV = 11, /* Embedded PDV */
45 ASN1_UTF8STR = 12, /* UTF8 String */
46 ASN1_RELOID = 13, /* Relative OID */
47 /* 14 - Reserved */
48 /* 15 - Reserved */
49 ASN1_SEQ = 16, /* Sequence and Sequence of */
50 ASN1_SET = 17, /* Set and Set of */
51 ASN1_NUMSTR = 18, /* Numerical String */
52 ASN1_PRNSTR = 19, /* Printable String */
53 ASN1_TEXSTR = 20, /* T61 String / Teletext String */
54 ASN1_VIDSTR = 21, /* Videotex String */
55 ASN1_IA5STR = 22, /* IA5 String */
56 ASN1_UNITIM = 23, /* Universal Time */
57 ASN1_GENTIM = 24, /* General Time */
58 ASN1_GRASTR = 25, /* Graphic String */
59 ASN1_VISSTR = 26, /* Visible String */
60 ASN1_GENSTR = 27, /* General String */
61 ASN1_UNISTR = 28, /* Universal String */
62 ASN1_CHRSTR = 29, /* Character String */
63 ASN1_BMPSTR = 30, /* BMP String */
64 ASN1_LONG_TAG = 31 /* Long form tag */
65};
66
67#endif /* _LINUX_ASN1_H */
diff --git a/include/linux/asn1_ber_bytecode.h b/include/linux/asn1_ber_bytecode.h
new file mode 100644
index 000000000000..945d44ae529c
--- /dev/null
+++ b/include/linux/asn1_ber_bytecode.h
@@ -0,0 +1,87 @@
1/* ASN.1 BER/DER/CER parsing state machine internal definitions
2 *
3 * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11
12#ifndef _LINUX_ASN1_BER_BYTECODE_H
13#define _LINUX_ASN1_BER_BYTECODE_H
14
15#ifdef __KERNEL__
16#include <linux/types.h>
17#endif
18#include <linux/asn1.h>
19
20typedef int (*asn1_action_t)(void *context,
21 size_t hdrlen, /* In case of ANY type */
22 unsigned char tag, /* In case of ANY type */
23 const void *value, size_t vlen);
24
25struct asn1_decoder {
26 const unsigned char *machine;
27 size_t machlen;
28 const asn1_action_t *actions;
29};
30
31enum asn1_opcode {
32 /* The tag-matching ops come first and the odd-numbered slots
33 * are for OR_SKIP ops.
34 */
35#define ASN1_OP_MATCH__SKIP 0x01
36#define ASN1_OP_MATCH__ACT 0x02
37#define ASN1_OP_MATCH__JUMP 0x04
38#define ASN1_OP_MATCH__ANY 0x08
39#define ASN1_OP_MATCH__COND 0x10
40
41 ASN1_OP_MATCH = 0x00,
42 ASN1_OP_MATCH_OR_SKIP = 0x01,
43 ASN1_OP_MATCH_ACT = 0x02,
44 ASN1_OP_MATCH_ACT_OR_SKIP = 0x03,
45 ASN1_OP_MATCH_JUMP = 0x04,
46 ASN1_OP_MATCH_JUMP_OR_SKIP = 0x05,
47 ASN1_OP_MATCH_ANY = 0x08,
48 ASN1_OP_MATCH_ANY_ACT = 0x0a,
49 /* Everything before here matches unconditionally */
50
51 ASN1_OP_COND_MATCH_OR_SKIP = 0x11,
52 ASN1_OP_COND_MATCH_ACT_OR_SKIP = 0x13,
53 ASN1_OP_COND_MATCH_JUMP_OR_SKIP = 0x15,
54 ASN1_OP_COND_MATCH_ANY = 0x18,
55 ASN1_OP_COND_MATCH_ANY_ACT = 0x1a,
56
57 /* Everything before here will want a tag from the data */
58#define ASN1_OP__MATCHES_TAG ASN1_OP_COND_MATCH_ANY_ACT
59
60 /* These are here to help fill up space */
61 ASN1_OP_COND_FAIL = 0x1b,
62 ASN1_OP_COMPLETE = 0x1c,
63 ASN1_OP_ACT = 0x1d,
64 ASN1_OP_RETURN = 0x1e,
65
66 /* The following eight have bit 0 -> SET, 1 -> OF, 2 -> ACT */
67 ASN1_OP_END_SEQ = 0x20,
68 ASN1_OP_END_SET = 0x21,
69 ASN1_OP_END_SEQ_OF = 0x22,
70 ASN1_OP_END_SET_OF = 0x23,
71 ASN1_OP_END_SEQ_ACT = 0x24,
72 ASN1_OP_END_SET_ACT = 0x25,
73 ASN1_OP_END_SEQ_OF_ACT = 0x26,
74 ASN1_OP_END_SET_OF_ACT = 0x27,
75#define ASN1_OP_END__SET 0x01
76#define ASN1_OP_END__OF 0x02
77#define ASN1_OP_END__ACT 0x04
78
79 ASN1_OP__NR
80};
81
82#define _tag(CLASS, CP, TAG) ((ASN1_##CLASS << 6) | (ASN1_##CP << 5) | ASN1_##TAG)
83#define _tagn(CLASS, CP, TAG) ((ASN1_##CLASS << 6) | (ASN1_##CP << 5) | TAG)
84#define _jump_target(N) (N)
85#define _action(N) (N)
86
87#endif /* _LINUX_ASN1_BER_BYTECODE_H */
generated by cgit v1.2.2 (git 2.25.0) at 2026-08-31 16:56:10 -0400