3 * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
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.
17 #define AFS_MAXCELLNAME 64 /* Maximum length of a cell name */
18 #define AFS_MAXVOLNAME 64 /* Maximum length of a volume name */
19 #define AFS_MAXNSERVERS 8 /* Maximum servers in a basic volume record */
20 #define AFS_NMAXNSERVERS 13 /* Maximum servers in a N/U-class volume record */
21 #define AFS_MAXTYPES 3 /* Maximum number of volume types */
22 #define AFSNAMEMAX 256 /* Maximum length of a filename plus NUL */
23 #define AFSPATHMAX 1024 /* Maximum length of a pathname plus NUL */
24 #define AFSOPAQUEMAX 1024 /* Maximum length of an opaque field */
26 typedef unsigned afs_volid_t;
27 typedef unsigned afs_vnodeid_t;
28 typedef unsigned long long afs_dataversion_t;
31 AFSVL_RWVOL, /* read/write volume */
32 AFSVL_ROVOL, /* read-only volume */
33 AFSVL_BACKVOL, /* backup volume */
34 } __attribute__((packed)) afs_voltype_t;
37 AFS_FTYPE_INVALID = 0,
40 AFS_FTYPE_SYMLINK = 3,
44 AFS_LOCK_READ = 0, /* read lock request */
45 AFS_LOCK_WRITE = 1, /* write lock request */
48 #define AFS_LOCKWAIT (5 * 60) /* time until a lock times out (seconds) */
54 afs_volid_t vid; /* volume ID */
55 afs_vnodeid_t vnode; /* file index within volume */
56 unsigned unique; /* unique ID number (file index version) */
60 * AFS callback notification
63 AFSCM_CB_UNTYPED = 0, /* no type set on CB break */
64 AFSCM_CB_EXCLUSIVE = 1, /* CB exclusive to CM [not implemented] */
65 AFSCM_CB_SHARED = 2, /* CB shared by other CM's */
66 AFSCM_CB_DROPPED = 3, /* CB promise cancelled by file server */
67 } afs_callback_type_t;
70 unsigned version; /* Callback version */
71 unsigned expiry; /* Time at which expires */
72 afs_callback_type_t type; /* Type of callback */
75 struct afs_callback_break {
76 struct afs_fid fid; /* File identifier */
77 struct afs_callback cb; /* Callback details */
80 #define AFSCBMAX 50 /* maximum callbacks transferred per bulk op */
83 __be32 time_low; /* low part of timestamp */
84 __be16 time_mid; /* mid part of timestamp */
85 __be16 time_hi_and_version; /* high part of timestamp and version */
86 __s8 clock_seq_hi_and_reserved; /* clock seq hi and variant */
87 __s8 clock_seq_low; /* clock seq low */
88 __s8 node[6]; /* spatially unique node ID (MAC addr) */
92 * AFS volume information
94 struct afs_volume_info {
95 afs_volid_t vid; /* volume ID */
96 afs_voltype_t type; /* type of this volume */
97 afs_volid_t type_vids[5]; /* volume ID's for possible types for this vol */
99 /* list of fileservers serving this volume */
100 size_t nservers; /* number of entries used in servers[] */
102 struct in_addr addr; /* fileserver address */
107 * AFS security ACE access mask
109 typedef u32 afs_access_t;
110 #define AFS_ACE_READ 0x00000001U /* - permission to read a file/dir */
111 #define AFS_ACE_WRITE 0x00000002U /* - permission to write/chmod a file */
112 #define AFS_ACE_INSERT 0x00000004U /* - permission to create dirent in a dir */
113 #define AFS_ACE_LOOKUP 0x00000008U /* - permission to lookup a file/dir in a dir */
114 #define AFS_ACE_DELETE 0x00000010U /* - permission to delete a dirent from a dir */
115 #define AFS_ACE_LOCK 0x00000020U /* - permission to lock a file */
116 #define AFS_ACE_ADMINISTER 0x00000040U /* - permission to change ACL */
117 #define AFS_ACE_USER_A 0x01000000U /* - 'A' user-defined permission */
118 #define AFS_ACE_USER_B 0x02000000U /* - 'B' user-defined permission */
119 #define AFS_ACE_USER_C 0x04000000U /* - 'C' user-defined permission */
120 #define AFS_ACE_USER_D 0x08000000U /* - 'D' user-defined permission */
121 #define AFS_ACE_USER_E 0x10000000U /* - 'E' user-defined permission */
122 #define AFS_ACE_USER_F 0x20000000U /* - 'F' user-defined permission */
123 #define AFS_ACE_USER_G 0x40000000U /* - 'G' user-defined permission */
124 #define AFS_ACE_USER_H 0x80000000U /* - 'H' user-defined permission */
127 * AFS file status information
129 struct afs_file_status {
130 u64 size; /* file size */
131 afs_dataversion_t data_version; /* current data version */
132 time_t mtime_client; /* last time client changed data */
133 time_t mtime_server; /* last time server changed data */
134 unsigned abort_code; /* Abort if bulk-fetching this failed */
136 afs_file_type_t type; /* file type */
137 unsigned nlink; /* link count */
138 u32 author; /* author ID */
139 u32 owner; /* owner ID */
140 u32 group; /* group ID */
141 afs_access_t caller_access; /* access rights for authenticated caller */
142 afs_access_t anon_access; /* access rights for unauthenticated caller */
143 umode_t mode; /* UNIX mode */
144 s32 lock_count; /* file lock count (0=UNLK -1=WRLCK +ve=#RDLCK */
148 * AFS file status change request
151 #define AFS_SET_MTIME 0x01 /* set the mtime */
152 #define AFS_SET_OWNER 0x02 /* set the owner ID */
153 #define AFS_SET_GROUP 0x04 /* set the group ID (unsupported?) */
154 #define AFS_SET_MODE 0x08 /* set the UNIX mode */
155 #define AFS_SET_SEG_SIZE 0x10 /* set the segment size (unsupported) */
158 * AFS volume synchronisation information
161 time_t creation; /* volume creation time */
165 * AFS volume status record
167 struct afs_volume_status {
168 u32 vid; /* volume ID */
169 u32 parent_id; /* parent volume ID */
170 u8 online; /* true if volume currently online and available */
171 u8 in_service; /* true if volume currently in service */
172 u8 blessed; /* same as in_service */
173 u8 needs_salvage; /* true if consistency checking required */
174 u32 type; /* volume type (afs_voltype_t) */
175 u32 min_quota; /* minimum space set aside (blocks) */
176 u32 max_quota; /* maximum space this volume may occupy (blocks) */
177 u32 blocks_in_use; /* space this volume currently occupies (blocks) */
178 u32 part_blocks_avail; /* space available in volume's partition */
179 u32 part_max_blocks; /* size of volume's partition */
182 #define AFS_BLOCK_SIZE 1024
185 * XDR encoding of UUID in AFS.
187 struct afs_uuid__xdr {
190 __be32 time_hi_and_version;
191 __be32 clock_seq_hi_and_reserved;
192 __be32 clock_seq_low;