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1da177e4 LT |
1 | /* types.h: AFS types |
2 | * | |
3 | * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU General Public License | |
8 | * as published by the Free Software Foundation; either version | |
9 | * 2 of the License, or (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #ifndef _LINUX_AFS_TYPES_H | |
13 | #define _LINUX_AFS_TYPES_H | |
14 | ||
15 | #ifdef __KERNEL__ | |
16 | #include <rxrpc/types.h> | |
17 | #endif /* __KERNEL__ */ | |
18 | ||
19 | typedef unsigned afs_volid_t; | |
20 | typedef unsigned afs_vnodeid_t; | |
21 | typedef unsigned long long afs_dataversion_t; | |
22 | ||
23 | typedef enum { | |
24 | AFSVL_RWVOL, /* read/write volume */ | |
25 | AFSVL_ROVOL, /* read-only volume */ | |
26 | AFSVL_BACKVOL, /* backup volume */ | |
27 | } __attribute__((packed)) afs_voltype_t; | |
28 | ||
29 | typedef enum { | |
30 | AFS_FTYPE_INVALID = 0, | |
31 | AFS_FTYPE_FILE = 1, | |
32 | AFS_FTYPE_DIR = 2, | |
33 | AFS_FTYPE_SYMLINK = 3, | |
34 | } afs_file_type_t; | |
35 | ||
36 | #ifdef __KERNEL__ | |
37 | ||
38 | struct afs_cell; | |
39 | struct afs_vnode; | |
40 | ||
41 | /*****************************************************************************/ | |
42 | /* | |
43 | * AFS file identifier | |
44 | */ | |
45 | struct afs_fid | |
46 | { | |
47 | afs_volid_t vid; /* volume ID */ | |
48 | afs_vnodeid_t vnode; /* file index within volume */ | |
49 | unsigned unique; /* unique ID number (file index version) */ | |
50 | }; | |
51 | ||
52 | /*****************************************************************************/ | |
53 | /* | |
54 | * AFS callback notification | |
55 | */ | |
56 | typedef enum { | |
57 | AFSCM_CB_UNTYPED = 0, /* no type set on CB break */ | |
58 | AFSCM_CB_EXCLUSIVE = 1, /* CB exclusive to CM [not implemented] */ | |
59 | AFSCM_CB_SHARED = 2, /* CB shared by other CM's */ | |
60 | AFSCM_CB_DROPPED = 3, /* CB promise cancelled by file server */ | |
61 | } afs_callback_type_t; | |
62 | ||
63 | struct afs_callback | |
64 | { | |
65 | struct afs_server *server; /* server that made the promise */ | |
66 | struct afs_fid fid; /* file identifier */ | |
67 | unsigned version; /* callback version */ | |
68 | unsigned expiry; /* time at which expires */ | |
69 | afs_callback_type_t type; /* type of callback */ | |
70 | }; | |
71 | ||
72 | #define AFSCBMAX 50 | |
73 | ||
74 | /*****************************************************************************/ | |
75 | /* | |
76 | * AFS volume information | |
77 | */ | |
78 | struct afs_volume_info | |
79 | { | |
80 | afs_volid_t vid; /* volume ID */ | |
81 | afs_voltype_t type; /* type of this volume */ | |
82 | afs_volid_t type_vids[5]; /* volume ID's for possible types for this vol */ | |
83 | ||
84 | /* list of fileservers serving this volume */ | |
85 | size_t nservers; /* number of entries used in servers[] */ | |
86 | struct { | |
87 | struct in_addr addr; /* fileserver address */ | |
88 | } servers[8]; | |
89 | }; | |
90 | ||
91 | /*****************************************************************************/ | |
92 | /* | |
93 | * AFS file status information | |
94 | */ | |
95 | struct afs_file_status | |
96 | { | |
97 | unsigned if_version; /* interface version */ | |
98 | #define AFS_FSTATUS_VERSION 1 | |
99 | ||
100 | afs_file_type_t type; /* file type */ | |
101 | unsigned nlink; /* link count */ | |
102 | size_t size; /* file size */ | |
103 | afs_dataversion_t version; /* current data version */ | |
104 | unsigned author; /* author ID */ | |
105 | unsigned owner; /* owner ID */ | |
106 | unsigned caller_access; /* access rights for authenticated caller */ | |
107 | unsigned anon_access; /* access rights for unauthenticated caller */ | |
108 | umode_t mode; /* UNIX mode */ | |
109 | struct afs_fid parent; /* parent file ID */ | |
110 | time_t mtime_client; /* last time client changed data */ | |
111 | time_t mtime_server; /* last time server changed data */ | |
112 | }; | |
113 | ||
114 | /*****************************************************************************/ | |
115 | /* | |
116 | * AFS volume synchronisation information | |
117 | */ | |
118 | struct afs_volsync | |
119 | { | |
120 | time_t creation; /* volume creation time */ | |
121 | }; | |
122 | ||
123 | #endif /* __KERNEL__ */ | |
124 | ||
125 | #endif /* _LINUX_AFS_TYPES_H */ |