| 1 | /*************************************************************************** |
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| 2 | * |
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| 3 | * Copyright (C) 2001 International Business Machines |
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| 4 | * All rights reserved. |
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| 5 | * |
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| 6 | * This file is part of the GPFS mmfslinux kernel module. |
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| 7 | * |
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| 8 | * Redistribution and use in source and binary forms, with or without |
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| 9 | * modification, are permitted provided that the following conditions |
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| 10 | * are met: |
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| 11 | * |
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| 12 | * 1. Redistributions of source code must retain the above copyright notice, |
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| 13 | * this list of conditions and the following disclaimer. |
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer in the |
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| 16 | * documentation and/or other materials provided with the distribution. |
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| 17 | * 3. The name of the author may not be used to endorse or promote products |
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| 18 | * derived from this software without specific prior written |
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| 19 | * permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 22 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 23 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 24 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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| 26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
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| 27 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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| 28 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
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| 29 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
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| 30 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 31 | * |
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| 32 | *************************************************************************** */ |
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| 33 | /* @(#)38 1.10 src/avs/fs/mmfs/ts/kernext/ibm-kxi/cxiCred.h, mmfs, avs_rgpfs24, rgpfs240610b 11/10/03 08:36:38 */ |
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| 34 | |
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| 35 | #ifndef _h_CXICRED |
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| 36 | #define _h_CXICRED |
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| 37 | |
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| 38 | #include <cxiSystem.h> |
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| 39 | #include <cxiTypes.h> |
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| 40 | |
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| 41 | /* Structures dealing with ext_id_t and ext_cred_t |
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| 42 | * Equivalent to DCE uuid_t |
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| 43 | */ |
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| 44 | struct ext_id_t |
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| 45 | { |
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| 46 | unsigned int time_low; |
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| 47 | unsigned short time_mid; |
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| 48 | unsigned short time_hi_and_version; |
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| 49 | unsigned char clock_seq_hi_and_reserved; |
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| 50 | unsigned char clock_seq_low; |
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| 51 | unsigned char node[6]; |
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| 52 | }; |
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| 53 | typedef struct ext_id_t ext_id_t; |
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| 54 | |
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| 55 | |
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| 56 | /* Include platform-specific credential definitions */ |
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| 57 | #include <cxiCred-plat.h> |
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| 58 | |
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| 59 | |
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| 60 | /* Compare a UUID to our (shortened) principal identifier |
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| 61 | */ |
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| 62 | #define PRINCIPAL_ID_COMPARE(idBlob1P, idBlob2P) \ |
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| 63 | (cxiMemcmp((char *)(idBlob1P), (char *)(idBlob2P), sizeof(cxiGid_t))) |
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| 64 | |
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| 65 | /* Compare as full length (128 bit) identifiers |
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| 66 | */ |
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| 67 | #define EXT_ID_COMPARE(idBlob1P, idBlob2P) \ |
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| 68 | (cxiMemcmp((char *)(idBlob1P), (char *)(idBlob2P), sizeof(ext_id_t))) |
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| 69 | |
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| 70 | |
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| 71 | /* We often compare the realm against a NIL identifier since |
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| 72 | * the local realm has the well known identity of NIL. We need |
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| 73 | * a well known identity since a file may be accessed from a DFS |
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| 74 | * client and a GPFS node. The DFS server node can correctly |
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| 75 | * tell us what a local realm identity is, but a normal GPFS |
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| 76 | * node has no idea how to interpret a 128 bit DCE realm. Hence |
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| 77 | * we always store local realms as the well known NIL identity. |
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| 78 | */ |
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| 79 | #define NIL_EXT_ID(_IDP) \ |
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| 80 | ((_IDP)->time_low == 0 && \ |
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| 81 | (_IDP)->time_mid == 0 && \ |
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| 82 | (_IDP)->time_hi_and_version == 0 && \ |
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| 83 | (_IDP)->clock_seq_hi_and_reserved == 0 && \ |
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| 84 | (_IDP)->clock_seq_low == 0 && \ |
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| 85 | (_IDP)->node[0] == 0 && \ |
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| 86 | (_IDP)->node[1] == 0 && \ |
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| 87 | (_IDP)->node[2] == 0 && \ |
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| 88 | (_IDP)->node[3] == 0 && \ |
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| 89 | (_IDP)->node[4] == 0 && \ |
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| 90 | (_IDP)->node[5] == 0) |
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| 91 | |
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| 92 | /* Maximum character buffer size needed to represent a |
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| 93 | * extended identifier as a string. (See EXT_ID_SPRINTF) |
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| 94 | */ |
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| 95 | #define EXT_ID_STRING_SIZE 37 |
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| 96 | |
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| 97 | #define EXT_ID_SPRINTF(_STRINGP, _IDP) \ |
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| 98 | sprintf((_STRINGP), \ |
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| 99 | "%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X", \ |
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| 100 | (unsigned int)(_IDP)->time_low, \ |
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| 101 | (unsigned short)(_IDP)->time_mid, \ |
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| 102 | (unsigned short)(_IDP)->time_hi_and_version, \ |
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| 103 | (unsigned char)(_IDP)->clock_seq_hi_and_reserved, \ |
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| 104 | (unsigned char)(_IDP)->clock_seq_low, \ |
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| 105 | (unsigned char)(_IDP)->node[0], \ |
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| 106 | (unsigned char)(_IDP)->node[1], \ |
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| 107 | (unsigned char)(_IDP)->node[2], \ |
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| 108 | (unsigned char)(_IDP)->node[3], \ |
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| 109 | (unsigned char)(_IDP)->node[4], \ |
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| 110 | (unsigned char)(_IDP)->node[5]); |
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| 111 | |
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| 112 | /* prototypes */ |
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| 113 | char *ext_id_as_string(ext_id_t *, char *); |
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| 114 | |
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| 115 | #endif /* _h_CXICRED */ |
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