xref: /linux/include/linux/asn1.h (revision 58e16d792a6a8c6b750f637a4649967fcac853dc)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* ASN.1 BER/DER/CER encoding definitions
3  *
4  * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
5  * Written by David Howells (dhowells@redhat.com)
6  */
7 
8 #ifndef _LINUX_ASN1_H
9 #define _LINUX_ASN1_H
10 
11 /* Class */
12 enum asn1_class {
13 	ASN1_UNIV	= 0,	/* Universal */
14 	ASN1_APPL	= 1,	/* Application */
15 	ASN1_CONT	= 2,	/* Context */
16 	ASN1_PRIV	= 3	/* Private */
17 };
18 #define ASN1_CLASS_BITS	0xc0
19 
20 
21 enum asn1_method {
22 	ASN1_PRIM	= 0,	/* Primitive */
23 	ASN1_CONS	= 1	/* Constructed */
24 };
25 #define ASN1_CONS_BIT	0x20
26 
27 /* Tag */
28 enum asn1_tag {
29 	ASN1_EOC	= 0,	/* End Of Contents or N/A */
30 	ASN1_BOOL	= 1,	/* Boolean */
31 	ASN1_INT	= 2,	/* Integer */
32 	ASN1_BTS	= 3,	/* Bit String */
33 	ASN1_OTS	= 4,	/* Octet String */
34 	ASN1_NULL	= 5,	/* Null */
35 	ASN1_OID	= 6,	/* Object Identifier  */
36 	ASN1_ODE	= 7,	/* Object Description */
37 	ASN1_EXT	= 8,	/* External */
38 	ASN1_REAL	= 9,	/* Real float */
39 	ASN1_ENUM	= 10,	/* Enumerated */
40 	ASN1_EPDV	= 11,	/* Embedded PDV */
41 	ASN1_UTF8STR	= 12,	/* UTF8 String */
42 	ASN1_RELOID	= 13,	/* Relative OID */
43 	/* 14 - Reserved */
44 	/* 15 - Reserved */
45 	ASN1_SEQ	= 16,	/* Sequence and Sequence of */
46 	ASN1_SET	= 17,	/* Set and Set of */
47 	ASN1_NUMSTR	= 18,	/* Numerical String */
48 	ASN1_PRNSTR	= 19,	/* Printable String */
49 	ASN1_TEXSTR	= 20,	/* T61 String / Teletext String */
50 	ASN1_VIDSTR	= 21,	/* Videotex String */
51 	ASN1_IA5STR	= 22,	/* IA5 String */
52 	ASN1_UNITIM	= 23,	/* Universal Time */
53 	ASN1_GENTIM	= 24,	/* General Time */
54 	ASN1_GRASTR	= 25,	/* Graphic String */
55 	ASN1_VISSTR	= 26,	/* Visible String */
56 	ASN1_GENSTR	= 27,	/* General String */
57 	ASN1_UNISTR	= 28,	/* Universal String */
58 	ASN1_CHRSTR	= 29,	/* Character String */
59 	ASN1_BMPSTR	= 30,	/* BMP String */
60 	ASN1_LONG_TAG	= 31	/* Long form tag */
61 };
62 
63 #define ASN1_INDEFINITE_LENGTH 0x80
64 
65 #endif /* _LINUX_ASN1_H */
66