3 * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
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 #define AFS_VL_MAX_LIFESPAN (120 * HZ)
27 #define AFS_PROBE_MAX_LIFESPAN (30 * HZ)
29 typedef u64 afs_volid_t;
30 typedef u64 afs_vnodeid_t;
31 typedef u64 afs_dataversion_t;
34 AFSVL_RWVOL, /* read/write volume */
35 AFSVL_ROVOL, /* read-only volume */
36 AFSVL_BACKVOL, /* backup volume */
37 } __attribute__((packed)) afs_voltype_t;
40 AFS_FTYPE_INVALID = 0,
43 AFS_FTYPE_SYMLINK = 3,
47 AFS_LOCK_READ = 0, /* read lock request */
48 AFS_LOCK_WRITE = 1, /* write lock request */
51 #define AFS_LOCKWAIT (5 * 60) /* time until a lock times out (seconds) */
57 afs_volid_t vid; /* volume ID */
58 afs_vnodeid_t vnode; /* Lower 64-bits of file index within volume */
59 u32 vnode_hi; /* Upper 32-bits of file index */
60 u32 unique; /* unique ID number (file index version) */
64 * AFS callback notification
67 AFSCM_CB_UNTYPED = 0, /* no type set on CB break */
68 AFSCM_CB_EXCLUSIVE = 1, /* CB exclusive to CM [not implemented] */
69 AFSCM_CB_SHARED = 2, /* CB shared by other CM's */
70 AFSCM_CB_DROPPED = 3, /* CB promise cancelled by file server */
71 } afs_callback_type_t;
74 time64_t expires_at; /* Time at which expires */
75 //unsigned version; /* Callback version */
76 //afs_callback_type_t type; /* Type of callback */
79 struct afs_callback_break {
80 struct afs_fid fid; /* File identifier */
81 //struct afs_callback cb; /* Callback details */
84 #define AFSCBMAX 50 /* maximum callbacks transferred per bulk op */
87 __be32 time_low; /* low part of timestamp */
88 __be16 time_mid; /* mid part of timestamp */
89 __be16 time_hi_and_version; /* high part of timestamp and version */
90 __s8 clock_seq_hi_and_reserved; /* clock seq hi and variant */
91 __s8 clock_seq_low; /* clock seq low */
92 __s8 node[6]; /* spatially unique node ID (MAC addr) */
96 * AFS volume information
98 struct afs_volume_info {
99 afs_volid_t vid; /* volume ID */
100 afs_voltype_t type; /* type of this volume */
101 afs_volid_t type_vids[5]; /* volume ID's for possible types for this vol */
103 /* list of fileservers serving this volume */
104 size_t nservers; /* number of entries used in servers[] */
106 struct in_addr addr; /* fileserver address */
111 * AFS security ACE access mask
113 typedef u32 afs_access_t;
114 #define AFS_ACE_READ 0x00000001U /* - permission to read a file/dir */
115 #define AFS_ACE_WRITE 0x00000002U /* - permission to write/chmod a file */
116 #define AFS_ACE_INSERT 0x00000004U /* - permission to create dirent in a dir */
117 #define AFS_ACE_LOOKUP 0x00000008U /* - permission to lookup a file/dir in a dir */
118 #define AFS_ACE_DELETE 0x00000010U /* - permission to delete a dirent from a dir */
119 #define AFS_ACE_LOCK 0x00000020U /* - permission to lock a file */
120 #define AFS_ACE_ADMINISTER 0x00000040U /* - permission to change ACL */
121 #define AFS_ACE_USER_A 0x01000000U /* - 'A' user-defined permission */
122 #define AFS_ACE_USER_B 0x02000000U /* - 'B' user-defined permission */
123 #define AFS_ACE_USER_C 0x04000000U /* - 'C' user-defined permission */
124 #define AFS_ACE_USER_D 0x08000000U /* - 'D' user-defined permission */
125 #define AFS_ACE_USER_E 0x10000000U /* - 'E' user-defined permission */
126 #define AFS_ACE_USER_F 0x20000000U /* - 'F' user-defined permission */
127 #define AFS_ACE_USER_G 0x40000000U /* - 'G' user-defined permission */
128 #define AFS_ACE_USER_H 0x80000000U /* - 'H' user-defined permission */
131 * AFS file status information
133 struct afs_file_status {
134 u64 size; /* file size */
135 afs_dataversion_t data_version; /* current data version */
136 struct timespec64 mtime_client; /* Last time client changed data */
137 struct timespec64 mtime_server; /* Last time server changed data */
138 s64 author; /* author ID */
139 s64 owner; /* owner ID */
140 s64 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 afs_file_type_t type; /* file type */
145 u32 nlink; /* link count */
146 s32 lock_count; /* file lock count (0=UNLK -1=WRLCK +ve=#RDLCK */
147 u32 abort_code; /* Abort if bulk-fetching this failed */
150 struct afs_status_cb {
151 struct afs_file_status status;
152 struct afs_callback callback;
153 unsigned int cb_break; /* Pre-op callback break counter */
154 bool have_status; /* True if status record was retrieved */
155 bool have_cb; /* True if cb record was retrieved */
156 bool have_error; /* True if status.abort_code indicates an error */
160 * AFS file status change request
163 #define AFS_SET_MTIME 0x01 /* set the mtime */
164 #define AFS_SET_OWNER 0x02 /* set the owner ID */
165 #define AFS_SET_GROUP 0x04 /* set the group ID (unsupported?) */
166 #define AFS_SET_MODE 0x08 /* set the UNIX mode */
167 #define AFS_SET_SEG_SIZE 0x10 /* set the segment size (unsupported) */
170 * AFS volume synchronisation information
173 time64_t creation; /* volume creation time */
177 * AFS volume status record
179 struct afs_volume_status {
180 afs_volid_t vid; /* volume ID */
181 afs_volid_t parent_id; /* parent volume ID */
182 u8 online; /* true if volume currently online and available */
183 u8 in_service; /* true if volume currently in service */
184 u8 blessed; /* same as in_service */
185 u8 needs_salvage; /* true if consistency checking required */
186 u32 type; /* volume type (afs_voltype_t) */
187 u64 min_quota; /* minimum space set aside (blocks) */
188 u64 max_quota; /* maximum space this volume may occupy (blocks) */
189 u64 blocks_in_use; /* space this volume currently occupies (blocks) */
190 u64 part_blocks_avail; /* space available in volume's partition */
191 u64 part_max_blocks; /* size of volume's partition */
196 #define AFS_BLOCK_SIZE 1024
199 * XDR encoding of UUID in AFS.
201 struct afs_uuid__xdr {
204 __be32 time_hi_and_version;
205 __be32 clock_seq_hi_and_reserved;
206 __be32 clock_seq_low;