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805e021f CE |
1 | /* |
2 | * Copyright 2000, International Business Machines Corporation and others. | |
3 | * All Rights Reserved. | |
4 | * | |
5 | * This software has been released under the terms of the IBM Public | |
6 | * License. For details, see the LICENSE file in the top-level source | |
7 | * directory or online at http://www.openafs.org/dl/license10.html | |
8 | */ | |
9 | ||
10 | #include <afsconfig.h> | |
11 | #include <afs/param.h> | |
12 | ||
13 | #include <roken.h> | |
14 | #include <afs/opr.h> | |
15 | ||
16 | #include <afs/pthread_glock.h> | |
17 | #include <afs/cellconfig.h> | |
18 | #include <rx/xdr.h> | |
19 | #include <rx/rx.h> | |
20 | ||
21 | #include "kauth.h" | |
22 | #include "kautils.h" | |
23 | ||
24 | /* This is a utility routine that many parts of kauth use but it invokes the | |
25 | afsconf package so its best to have it in a separate .o file to make the | |
26 | linker happy. */ | |
27 | ||
28 | static struct afsconf_dir *conf = 0; | |
29 | static char cell_name[MAXCELLCHARS]; | |
30 | ||
31 | int | |
32 | ka_CellConfig(const char *dir) | |
33 | { | |
34 | int code; | |
35 | ||
36 | LOCK_GLOBAL_MUTEX; | |
37 | if (conf) | |
38 | afsconf_Close(conf); | |
39 | conf = afsconf_Open(dir); | |
40 | if (!conf) { | |
41 | UNLOCK_GLOBAL_MUTEX; | |
42 | return KANOCELLS; | |
43 | } | |
44 | code = afsconf_GetLocalCell(conf, cell_name, sizeof(cell_name)); | |
45 | UNLOCK_GLOBAL_MUTEX; | |
46 | return code; | |
47 | } | |
48 | ||
49 | char * | |
50 | ka_LocalCell(void) | |
51 | { | |
52 | int code = 0; | |
53 | ||
54 | LOCK_GLOBAL_MUTEX; | |
55 | if (conf) { | |
56 | UNLOCK_GLOBAL_MUTEX; | |
57 | return cell_name; | |
58 | } | |
59 | if ((conf = afsconf_Open(AFSDIR_CLIENT_ETC_DIRPATH))) { | |
60 | code = afsconf_GetLocalCell(conf, cell_name, sizeof(cell_name)); | |
61 | /* leave conf open so we can lookup other cells */ | |
62 | /* afsconf_Close (conf); */ | |
63 | } | |
64 | if (!conf || code) { | |
65 | printf("** Can't determine local cell name!\n"); | |
66 | conf = 0; | |
67 | UNLOCK_GLOBAL_MUTEX; | |
68 | return 0; | |
69 | } | |
70 | UNLOCK_GLOBAL_MUTEX; | |
71 | return cell_name; | |
72 | } | |
73 | ||
74 | int | |
75 | ka_ExpandCell(char *cell, char *fullCell, int *alocal) | |
76 | { | |
77 | int local = 0; | |
78 | int code; | |
79 | char cellname[MAXKTCREALMLEN]; | |
80 | struct afsconf_cell cellinfo; /* storage for cell info */ | |
81 | ||
82 | LOCK_GLOBAL_MUTEX; | |
83 | ka_LocalCell(); /* initialize things */ | |
84 | if (!conf) { | |
85 | UNLOCK_GLOBAL_MUTEX; | |
86 | return KANOCELLS; | |
87 | } | |
88 | ||
89 | if ((cell == 0) || (strlen(cell) == 0)) { | |
90 | local = 1; | |
91 | cell = cell_name; | |
92 | } else { | |
93 | cell = lcstring(cellname, cell, sizeof(cellname)); | |
94 | code = afsconf_GetCellInfo(conf, cell, 0, &cellinfo); | |
95 | if (code) { | |
96 | UNLOCK_GLOBAL_MUTEX; | |
97 | return KANOCELL; | |
98 | } | |
99 | cell = cellinfo.name; | |
100 | } | |
101 | if (strcmp(cell, cell_name) == 0) | |
102 | local = 1; | |
103 | ||
104 | if (fullCell) | |
105 | strcpy(fullCell, cell); | |
106 | if (alocal) | |
107 | *alocal = local; | |
108 | UNLOCK_GLOBAL_MUTEX; | |
109 | return 0; | |
110 | } | |
111 | ||
112 | int | |
113 | ka_CellToRealm(char *cell, char *realm, int *local) | |
114 | { | |
115 | int code = 0; | |
116 | ||
117 | LOCK_GLOBAL_MUTEX; | |
118 | code = ka_ExpandCell(cell, realm, local); | |
119 | ucstring(realm, realm, MAXKTCREALMLEN); | |
120 | UNLOCK_GLOBAL_MUTEX; | |
121 | return code; | |
122 | } |