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 #include <linux/sunrpc/gss_asn1.h>
44
45 /* Length of constant used in key derivation */
46 #define GSS_KRB5_K5CLENGTH (5)
47
48 /* Maximum key length (in bytes) for the supported crypto algorithms */
49 #define GSS_KRB5_MAX_KEYLEN (32)
50
51 /* Maximum checksum function output for the supported enctypes */
52 #define GSS_KRB5_MAX_CKSUM_LEN (24)
53
54 /* Maximum blocksize for the supported crypto algorithms */
55 #define GSS_KRB5_MAX_BLOCKSIZE (16)
56
57 /* The length of the Kerberos GSS token header */
58 #define GSS_KRB5_TOK_HDR_LEN (16)
59
60 #define KG_TOK_MIC_MSG 0x0101
61 #define KG_TOK_WRAP_MSG 0x0201
62
63 #define KG2_TOK_INITIAL 0x0101
64 #define KG2_TOK_RESPONSE 0x0202
65 #define KG2_TOK_MIC 0x0404
66 #define KG2_TOK_WRAP 0x0504
67
68 #define KG2_TOKEN_FLAG_SENTBYACCEPTOR 0x01
69 #define KG2_TOKEN_FLAG_SEALED 0x02
70 #define KG2_TOKEN_FLAG_ACCEPTORSUBKEY 0x04
71
72 #define KG2_RESP_FLAG_ERROR 0x0001
73 #define KG2_RESP_FLAG_DELEG_OK 0x0002
74
75 enum sgn_alg {
76 SGN_ALG_DES_MAC_MD5 = 0x0000,
77 SGN_ALG_MD2_5 = 0x0001,
78 SGN_ALG_DES_MAC = 0x0002,
79 SGN_ALG_3 = 0x0003, /* not published */
80 SGN_ALG_HMAC_SHA1_DES3_KD = 0x0004
81 };
82 enum seal_alg {
83 SEAL_ALG_NONE = 0xffff,
84 SEAL_ALG_DES = 0x0000,
85 SEAL_ALG_1 = 0x0001, /* not published */
86 SEAL_ALG_DES3KD = 0x0002
87 };
88
89 /*
90 * These values are assigned by IANA and published via the
91 * subregistry at the link below:
92 *
93 * https://www.iana.org/assignments/kerberos-parameters/kerberos-parameters.xhtml#kerberos-parameters-2
94 */
95 #define CKSUMTYPE_CRC32 0x0001
96 #define CKSUMTYPE_RSA_MD4 0x0002
97 #define CKSUMTYPE_RSA_MD4_DES 0x0003
98 #define CKSUMTYPE_DESCBC 0x0004
99 #define CKSUMTYPE_RSA_MD5 0x0007
100 #define CKSUMTYPE_RSA_MD5_DES 0x0008
101 #define CKSUMTYPE_NIST_SHA 0x0009
102 #define CKSUMTYPE_HMAC_SHA1_DES3 0x000c
103 #define CKSUMTYPE_HMAC_SHA1_96_AES128 0x000f
104 #define CKSUMTYPE_HMAC_SHA1_96_AES256 0x0010
105 #define CKSUMTYPE_CMAC_CAMELLIA128 0x0011
106 #define CKSUMTYPE_CMAC_CAMELLIA256 0x0012
107 #define CKSUMTYPE_HMAC_SHA256_128_AES128 0x0013
108 #define CKSUMTYPE_HMAC_SHA384_192_AES256 0x0014
109 #define CKSUMTYPE_HMAC_MD5_ARCFOUR -138 /* Microsoft md5 hmac cksumtype */
110
111 /* from gssapi_err_krb5.h */
112 #define KG_CCACHE_NOMATCH (39756032L)
113 #define KG_KEYTAB_NOMATCH (39756033L)
114 #define KG_TGT_MISSING (39756034L)
115 #define KG_NO_SUBKEY (39756035L)
116 #define KG_CONTEXT_ESTABLISHED (39756036L)
117 #define KG_BAD_SIGN_TYPE (39756037L)
118 #define KG_BAD_LENGTH (39756038L)
119 #define KG_CTX_INCOMPLETE (39756039L)
120 #define KG_CONTEXT (39756040L)
121 #define KG_CRED (39756041L)
122 #define KG_ENC_DESC (39756042L)
123 #define KG_BAD_SEQ (39756043L)
124 #define KG_EMPTY_CCACHE (39756044L)
125 #define KG_NO_CTYPES (39756045L)
126
127 /* per Kerberos v5 protocol spec crypto types from the wire.
128 * these get mapped to linux kernel crypto routines.
129 *
130 * These values are assigned by IANA and published via the
131 * subregistry at the link below:
132 *
133 * https://www.iana.org/assignments/kerberos-parameters/kerberos-parameters.xhtml#kerberos-parameters-1
134 */
135 #define ENCTYPE_NULL 0x0000
136 #define ENCTYPE_DES_CBC_CRC 0x0001 /* DES cbc mode with CRC-32 */
137 #define ENCTYPE_DES_CBC_MD4 0x0002 /* DES cbc mode with RSA-MD4 */
138 #define ENCTYPE_DES_CBC_MD5 0x0003 /* DES cbc mode with RSA-MD5 */
139 #define ENCTYPE_DES_CBC_RAW 0x0004 /* DES cbc mode raw */
140 /* XXX deprecated? */
141 #define ENCTYPE_DES3_CBC_SHA 0x0005 /* DES-3 cbc mode with NIST-SHA */
142 #define ENCTYPE_DES3_CBC_RAW 0x0006 /* DES-3 cbc mode raw */
143 #define ENCTYPE_DES_HMAC_SHA1 0x0008
144 #define ENCTYPE_DES3_CBC_SHA1 0x0010
145 #define ENCTYPE_AES128_CTS_HMAC_SHA1_96 0x0011
146 #define ENCTYPE_AES256_CTS_HMAC_SHA1_96 0x0012
147 #define ENCTYPE_AES128_CTS_HMAC_SHA256_128 0x0013
148 #define ENCTYPE_AES256_CTS_HMAC_SHA384_192 0x0014
149 #define ENCTYPE_ARCFOUR_HMAC 0x0017
150 #define ENCTYPE_ARCFOUR_HMAC_EXP 0x0018
151 #define ENCTYPE_CAMELLIA128_CTS_CMAC 0x0019
152 #define ENCTYPE_CAMELLIA256_CTS_CMAC 0x001A
153 #define ENCTYPE_UNKNOWN 0x01ff
154
155 /*
156 * Constants used for key derivation
157 */
158 /* for 3DES */
159 #define KG_USAGE_SEAL (22)
160 #define KG_USAGE_SIGN (23)
161 #define KG_USAGE_SEQ (24)
162
163 /* from rfc3961 */
164 #define KEY_USAGE_SEED_CHECKSUM (0x99)
165 #define KEY_USAGE_SEED_ENCRYPTION (0xAA)
166 #define KEY_USAGE_SEED_INTEGRITY (0x55)
167
168 /* from rfc4121 */
169 #define KG_USAGE_ACCEPTOR_SEAL (22)
170 #define KG_USAGE_ACCEPTOR_SIGN (23)
171 #define KG_USAGE_INITIATOR_SEAL (24)
172 #define KG_USAGE_INITIATOR_SIGN (25)
173
174 #endif /* _LINUX_SUNRPC_GSS_KRB5_H */
175
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