1/*
2 * Adapted from MIT Kerberos 5-1.2.1 lib/include/krb5.h,
3 * lib/gssapi/krb5/gssapiP_krb5.h, and others
4 *
5 * Copyright (c) 2000-2008 The Regents of the University of Michigan.
6 * All rights reserved.
7 *
8 * Andy Adamson <andros@umich.edu>
9 * Bruce Fields <bfields@umich.edu>
10 */
11
12/*
13 * Copyright 1995 by the Massachusetts Institute of Technology.
14 * All Rights Reserved.
15 *
16 * Export of this software from the United States of America may
17 * require a specific license from the United States Government.
18 * It is the responsibility of any person or organization contemplating
19 * export to obtain such a license before exporting.
20 *
21 * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
22 * distribute this software and its documentation for any purpose and
23 * without fee is hereby granted, provided that the above copyright
24 * notice appear in all copies and that both that copyright notice and
25 * this permission notice appear in supporting documentation, and that
26 * the name of M.I.T. not be used in advertising or publicity pertaining
27 * to distribution of the software without specific, written prior
28 * permission. Furthermore if you modify this software you must label
29 * your software as modified software and not distribute it in such a
30 * fashion that it might be confused with the original M.I.T. software.
31 * M.I.T. makes no representations about the suitability of
32 * this software for any purpose. It is provided "as is" without express
33 * or implied warranty.
34 *
35 */
36
37#ifndef _LINUX_SUNRPC_GSS_KRB5_H
38#define _LINUX_SUNRPC_GSS_KRB5_H
39
40#include <crypto/skcipher.h>
41#include <linux/sunrpc/auth_gss.h>
42#include <linux/sunrpc/gss_err.h>
43
44/* Length of constant used in key derivation */
45#define GSS_KRB5_K5CLENGTH (5)
46
47/* Maximum key length (in bytes) for the supported crypto algorithms */
48#define GSS_KRB5_MAX_KEYLEN (32)
49
50/* Maximum checksum function output for the supported enctypes */
51#define GSS_KRB5_MAX_CKSUM_LEN (24)
52
53/* Maximum blocksize for the supported crypto algorithms */
54#define GSS_KRB5_MAX_BLOCKSIZE (16)
55
56/* The length of the Kerberos GSS token header */
57#define GSS_KRB5_TOK_HDR_LEN (16)
58
59#define KG_TOK_MIC_MSG 0x0101
60#define KG_TOK_WRAP_MSG 0x0201
61
62#define KG2_TOK_INITIAL 0x0101
63#define KG2_TOK_RESPONSE 0x0202
64#define KG2_TOK_MIC 0x0404
65#define KG2_TOK_WRAP 0x0504
66
67#define KG2_TOKEN_FLAG_SENTBYACCEPTOR 0x01
68#define KG2_TOKEN_FLAG_SEALED 0x02
69#define KG2_TOKEN_FLAG_ACCEPTORSUBKEY 0x04
70
71#define KG2_RESP_FLAG_ERROR 0x0001
72#define KG2_RESP_FLAG_DELEG_OK 0x0002
73
74enum sgn_alg {
75 SGN_ALG_DES_MAC_MD5 = 0x0000,
76 SGN_ALG_MD2_5 = 0x0001,
77 SGN_ALG_DES_MAC = 0x0002,
78 SGN_ALG_3 = 0x0003, /* not published */
79 SGN_ALG_HMAC_SHA1_DES3_KD = 0x0004
80};
81enum seal_alg {
82 SEAL_ALG_NONE = 0xffff,
83 SEAL_ALG_DES = 0x0000,
84 SEAL_ALG_1 = 0x0001, /* not published */
85 SEAL_ALG_DES3KD = 0x0002
86};
87
88/*
89 * These values are assigned by IANA and published via the
90 * subregistry at the link below:
91 *
92 * https://www.iana.org/assignments/kerberos-parameters/kerberos-parameters.xhtml#kerberos-parameters-2
93 */
94#define CKSUMTYPE_CRC32 0x0001
95#define CKSUMTYPE_RSA_MD4 0x0002
96#define CKSUMTYPE_RSA_MD4_DES 0x0003
97#define CKSUMTYPE_DESCBC 0x0004
98#define CKSUMTYPE_RSA_MD5 0x0007
99#define CKSUMTYPE_RSA_MD5_DES 0x0008
100#define CKSUMTYPE_NIST_SHA 0x0009
101#define CKSUMTYPE_HMAC_SHA1_DES3 0x000c
102#define CKSUMTYPE_HMAC_SHA1_96_AES128 0x000f
103#define CKSUMTYPE_HMAC_SHA1_96_AES256 0x0010
104#define CKSUMTYPE_CMAC_CAMELLIA128 0x0011
105#define CKSUMTYPE_CMAC_CAMELLIA256 0x0012
106#define CKSUMTYPE_HMAC_SHA256_128_AES128 0x0013
107#define CKSUMTYPE_HMAC_SHA384_192_AES256 0x0014
108#define CKSUMTYPE_HMAC_MD5_ARCFOUR -138 /* Microsoft md5 hmac cksumtype */
109
110/* from gssapi_err_krb5.h */
111#define KG_CCACHE_NOMATCH (39756032L)
112#define KG_KEYTAB_NOMATCH (39756033L)
113#define KG_TGT_MISSING (39756034L)
114#define KG_NO_SUBKEY (39756035L)
115#define KG_CONTEXT_ESTABLISHED (39756036L)
116#define KG_BAD_SIGN_TYPE (39756037L)
117#define KG_BAD_LENGTH (39756038L)
118#define KG_CTX_INCOMPLETE (39756039L)
119#define KG_CONTEXT (39756040L)
120#define KG_CRED (39756041L)
121#define KG_ENC_DESC (39756042L)
122#define KG_BAD_SEQ (39756043L)
123#define KG_EMPTY_CCACHE (39756044L)
124#define KG_NO_CTYPES (39756045L)
125
126/* per Kerberos v5 protocol spec crypto types from the wire.
127 * these get mapped to linux kernel crypto routines.
128 *
129 * These values are assigned by IANA and published via the
130 * subregistry at the link below:
131 *
132 * https://www.iana.org/assignments/kerberos-parameters/kerberos-parameters.xhtml#kerberos-parameters-1
133 */
134#define ENCTYPE_NULL 0x0000
135#define ENCTYPE_DES_CBC_CRC 0x0001 /* DES cbc mode with CRC-32 */
136#define ENCTYPE_DES_CBC_MD4 0x0002 /* DES cbc mode with RSA-MD4 */
137#define ENCTYPE_DES_CBC_MD5 0x0003 /* DES cbc mode with RSA-MD5 */
138#define ENCTYPE_DES_CBC_RAW 0x0004 /* DES cbc mode raw */
139/* XXX deprecated? */
140#define ENCTYPE_DES3_CBC_SHA 0x0005 /* DES-3 cbc mode with NIST-SHA */
141#define ENCTYPE_DES3_CBC_RAW 0x0006 /* DES-3 cbc mode raw */
142#define ENCTYPE_DES_HMAC_SHA1 0x0008
143#define ENCTYPE_DES3_CBC_SHA1 0x0010
144#define ENCTYPE_AES128_CTS_HMAC_SHA1_96 0x0011
145#define ENCTYPE_AES256_CTS_HMAC_SHA1_96 0x0012
146#define ENCTYPE_AES128_CTS_HMAC_SHA256_128 0x0013
147#define ENCTYPE_AES256_CTS_HMAC_SHA384_192 0x0014
148#define ENCTYPE_ARCFOUR_HMAC 0x0017
149#define ENCTYPE_ARCFOUR_HMAC_EXP 0x0018
150#define ENCTYPE_CAMELLIA128_CTS_CMAC 0x0019
151#define ENCTYPE_CAMELLIA256_CTS_CMAC 0x001A
152#define ENCTYPE_UNKNOWN 0x01ff
153
154/*
155 * Constants used for key derivation
156 */
157/* for 3DES */
158#define KG_USAGE_SEAL (22)
159#define KG_USAGE_SIGN (23)
160#define KG_USAGE_SEQ (24)
161
162/* from rfc3961 */
163#define KEY_USAGE_SEED_CHECKSUM (0x99)
164#define KEY_USAGE_SEED_ENCRYPTION (0xAA)
165#define KEY_USAGE_SEED_INTEGRITY (0x55)
166
167/* from rfc4121 */
168#define KG_USAGE_ACCEPTOR_SEAL (22)
169#define KG_USAGE_ACCEPTOR_SIGN (23)
170#define KG_USAGE_INITIATOR_SEAL (24)
171#define KG_USAGE_INITIATOR_SIGN (25)
172
173#endif /* _LINUX_SUNRPC_GSS_KRB5_H */
174