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| 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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