231 lines
6.7 KiB
C
231 lines
6.7 KiB
C
#ifndef _IPXE_ASN1_H
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#define _IPXE_ASN1_H
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/** @file
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*
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* ASN.1 encoding
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER );
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/** An ASN.1 object cursor */
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struct asn1_cursor {
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/** Start of data */
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const void *data;
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/** Length of data */
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size_t len;
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};
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/** ASN.1 end */
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#define ASN1_END 0x00
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/** ASN.1 boolean */
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#define ASN1_BOOLEAN 0x01
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/** ASN.1 integer */
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#define ASN1_INTEGER 0x02
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/** ASN.1 bit string */
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#define ASN1_BIT_STRING 0x03
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/** ASN.1 octet string */
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#define ASN1_OCTET_STRING 0x04
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/** ASN.1 null */
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#define ASN1_NULL 0x05
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/** ASN.1 object identifier */
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#define ASN1_OID 0x06
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/** ASN.1 UTC time */
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#define ASN1_UTC_TIME 0x17
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/** ASN.1 generalized time */
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#define ASN1_GENERALIZED_TIME 0x18
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/** ASN.1 sequence */
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#define ASN1_SEQUENCE 0x30
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/** ASN.1 set */
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#define ASN1_SET 0x31
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/** ASN.1 explicit tag */
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#define ASN1_EXPLICIT_TAG( number) ( 0xa0 | (number) )
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/** ASN.1 "any tag" magic value */
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#define ASN1_ANY -1U
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/** Initial OID byte */
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#define ASN1_OID_INITIAL( first, second ) ( ( (first) * 40 ) + (second) )
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/** Single-byte OID value
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*
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* Valid for values up to 127
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*/
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#define ASN1_OID_SINGLE( value ) ( (value) & 0x7f )
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/** Double-byte OID value
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*
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* Valid for values up to 16383
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*/
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#define ASN1_OID_DOUBLE( value ) \
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( 0x80 | ( ( (value) >> 7 ) & 0x7f ) ), ASN1_OID_SINGLE ( (value) )
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/** Double-byte OID value
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*
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* Valid for values up to 2097151
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*/
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#define ASN1_OID_TRIPLE( value ) \
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( 0x80 | ( ( (value) >> 14 ) & 0x7f ) ), ASN1_OID_DOUBLE ( (value) )
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/** ASN.1 OID for iso(1) member-body(2) */
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#define ASN1_OID_ISO_MEMBERBODY ASN1_OID_INITIAL ( 1, 2 )
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/** ASN.1 OID for iso(1) identified-organization(3) */
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#define ASN1_OID_IDENTIFIED_ORGANIZATION ASN1_OID_INITIAL ( 1, 3 )
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/** ASN.1 OID for joint-iso-itu-t(2) ds(5) */
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#define ASN1_OID_DIRECTORY_SERVICES ASN1_OID_INITIAL ( 2, 5 )
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/** ASN.1 OID for joint-iso-itu-t(2) country(16) */
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#define ASN1_OID_COUNTRY ASN1_OID_INITIAL ( 2, 16 )
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/** ASN.1 OID for iso(1) member-body(2) us(840) */
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#define ASN1_OID_ISO_US ASN1_OID_ISO_MEMBERBODY, ASN1_OID_DOUBLE ( 840 )
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/** ASN.1 OID for iso(1) member-body(2) us(840) rsadsi(113549) */
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#define ASN1_OID_RSADSI ASN1_OID_ISO_US, ASN1_OID_TRIPLE ( 113549 )
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/** ASN.1 OID for iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) */
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#define ASN1_OID_PKCS ASN1_OID_RSADSI, ASN1_OID_SINGLE ( 1 )
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/** ASN.1 OID for iso(1) member-body(2) us(840) rsadsi(113549)
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* digestAlgorithm(2)
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*/
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#define ASN1_OID_DIGESTALGORITHM ASN1_OID_RSADSI, ASN1_OID_SINGLE ( 2 )
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/** ASN.1 OID for iso(1) identified-organization(3) oiw(14) */
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#define ASN1_OID_OIW ASN1_OID_IDENTIFIED_ORGANIZATION, ASN1_OID_SINGLE ( 14 )
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/** ASN.1 OID for iso(1) identified-organization(3) oiw(14) secsig(3) */
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#define ASN1_OID_SECSIG ASN1_OID_OIW, ASN1_OID_SINGLE ( 3 )
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/** ASN1. OID for iso(1) identified-organization(3) oiw(14) secsig(3)
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* algorithms(2)
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*/
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#define ASN1_OID_SECSIG_ALGORITHMS ASN1_OID_SECSIG, ASN1_OID_SINGLE ( 2 )
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/** ASN.1 OID for joint-iso-itu-t(2) country(16) us(840) */
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#define ASN1_OID_COUNTRY_US ASN1_OID_COUNTRY, ASN1_OID_DOUBLE ( 840 )
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/** ASN.1 OID for joint-iso-itu-t(2) country(16) us(840) organization(1) */
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#define ASN1_OID_US_ORGANIZATION ASN1_OID_COUNTRY_US, ASN1_OID_SINGLE ( 1 )
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/** ASN.1 OID for joint-iso-itu-t(2) country(16) us(840)
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* organization(1) gov(101)
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*/
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#define ASN1_OID_US_GOV ASN1_OID_US_ORGANIZATION, ASN1_OID_SINGLE ( 101 )
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/** ASN.1 OID for joint-iso-itu-t(2) country(16) us(840)
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* organization(1) gov(101) csor(3)
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*/
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#define ASN1_OID_CSOR ASN1_OID_US_GOV, ASN1_OID_SINGLE ( 3 )
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/** ASN.1 OID for joint-iso-itu-t(2) country(16) us(840)
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* organization(1) gov(101) csor(3) nistalgorithm(4)
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*/
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#define ASN1_OID_NISTALGORITHM ASN1_OID_CSOR, ASN1_OID_SINGLE ( 4 )
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/** ASN.1 OID for joint-iso-itu-t(2) country(16) us(840)
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* organization(1) gov(101) csor(3) nistalgorithm(4) hashalgs(2)
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*/
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#define ASN1_OID_HASHALGS ASN1_OID_NISTALGORITHM, ASN1_OID_SINGLE ( 2 )
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/** ASN.1 OID for pkcs-1 */
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#define ASN1_OID_PKCS_1 ASN1_OID_PKCS, ASN1_OID_SINGLE ( 1 )
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/** ASN.1 OID for rsaEncryption */
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#define ASN1_OID_RSAENCRYPTION ASN1_OID_PKCS_1, ASN1_OID_SINGLE ( 1 )
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/** ASN.1 OID for md5WithRSAEncryption */
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#define ASN1_OID_MD5WITHRSAENCRYPTION ASN1_OID_PKCS_1, ASN1_OID_SINGLE ( 4 )
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/** ASN.1 OID for sha1WithRSAEncryption */
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#define ASN1_OID_SHA1WITHRSAENCRYPTION ASN1_OID_PKCS_1, ASN1_OID_SINGLE ( 5 )
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/** ASN.1 OID for sha256WithRSAEncryption */
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#define ASN1_OID_SHA256WITHRSAENCRYPTION ASN1_OID_PKCS_1, ASN1_OID_SINGLE ( 11 )
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/** ASN.1 OID for id-md5 */
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#define ASN1_OID_MD5 ASN1_OID_DIGESTALGORITHM, ASN1_OID_SINGLE ( 5 )
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/** ASN.1 OID for id-sha1 */
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#define ASN1_OID_SHA1 ASN1_OID_SECSIG_ALGORITHMS, ASN1_OID_SINGLE ( 26 )
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/** ASN.1 OID for id-sha256 */
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#define ASN1_OID_SHA256 ASN1_OID_HASHALGS, ASN1_OID_SINGLE ( 1 )
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/** ASN.1 OID for joint-iso-itu-t(2) ds(5) attributeType(4) */
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#define ASN1_OID_ATTRIBUTE_TYPE \
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ASN1_OID_DIRECTORY_SERVICES, ASN1_OID_SINGLE ( 4 )
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/** ASN.1 OID for joint-iso-itu-t(2) ds(5) attributeType(4) commonName(3) */
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#define ASN1_OID_COMMON_NAME ASN1_OID_ATTRIBUTE_TYPE, ASN1_OID_SINGLE ( 3 )
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/** ASN.1 OID for id-ce */
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#define ASN1_OID_CE ASN1_OID_DIRECTORY_SERVICES, ASN1_OID_SINGLE ( 29 )
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/** ASN.1 OID for id-ce-keyUsage */
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#define ASN1_OID_KEYUSAGE ASN1_OID_CE, ASN1_OID_SINGLE ( 15 )
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/** ASN.1 OID for id-ce-basicConstraints */
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#define ASN1_OID_BASICCONSTRAINTS ASN1_OID_CE, ASN1_OID_SINGLE ( 19 )
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/** Define an ASN.1 cursor containing an OID */
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#define ASN1_OID_CURSOR( oid_value ) { \
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.data = oid_value, \
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.len = sizeof ( oid_value ), \
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}
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/** An ASN.1 boolean */
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struct asn1_boolean {
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/** Value */
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uint8_t value;
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} __attribute__ (( packed ));
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/** An ASN.1 bit string */
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struct asn1_bit_string {
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/** Number of unused bits */
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uint8_t unused;
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/** Data */
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uint8_t data[0];
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} __attribute__ (( packed ));
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/**
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* Extract ASN.1 type
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*
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* @v cursor ASN.1 object cursor
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* @ret type Type
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*/
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static inline __attribute__ (( always_inline )) unsigned int
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asn1_type ( const struct asn1_cursor *cursor ) {
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return ( *( ( const uint8_t * ) cursor->data ) );
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}
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extern void asn1_invalidate_cursor ( struct asn1_cursor *cursor );
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extern int asn1_enter ( struct asn1_cursor *cursor, unsigned int type );
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extern int asn1_skip_if_exists ( struct asn1_cursor *cursor,
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unsigned int type );
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extern int asn1_skip ( struct asn1_cursor *cursor, unsigned int type );
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extern int asn1_shrink ( struct asn1_cursor *cursor, unsigned int type );
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extern int asn1_enter_any ( struct asn1_cursor *cursor );
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extern int asn1_skip_any ( struct asn1_cursor *cursor );
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extern int asn1_shrink_any ( struct asn1_cursor *cursor );
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extern int asn1_boolean ( const struct asn1_cursor *cursor );
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extern int asn1_integer ( const struct asn1_cursor *cursor, int *value );
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extern int asn1_compare ( const struct asn1_cursor *cursor1,
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const struct asn1_cursor *cursor2 );
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#endif /* _IPXE_ASN1_H */
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