| /* AFS common types |
| * |
| * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #ifndef AFS_H |
| #define AFS_H |
| |
| #include <linux/in.h> |
| |
| #define AFS_MAXCELLNAME 64 /* Maximum length of a cell name */ |
| #define AFS_MAXVOLNAME 64 /* Maximum length of a volume name */ |
| #define AFS_MAXNSERVERS 8 /* Maximum servers in a basic volume record */ |
| #define AFS_NMAXNSERVERS 13 /* Maximum servers in a N/U-class volume record */ |
| #define AFS_MAXTYPES 3 /* Maximum number of volume types */ |
| #define AFSNAMEMAX 256 /* Maximum length of a filename plus NUL */ |
| #define AFSPATHMAX 1024 /* Maximum length of a pathname plus NUL */ |
| #define AFSOPAQUEMAX 1024 /* Maximum length of an opaque field */ |
| |
| #define AFS_VL_MAX_LIFESPAN (120 * HZ) |
| #define AFS_PROBE_MAX_LIFESPAN (30 * HZ) |
| |
| typedef u64 afs_volid_t; |
| typedef u64 afs_vnodeid_t; |
| typedef u64 afs_dataversion_t; |
| |
| typedef enum { |
| AFSVL_RWVOL, /* read/write volume */ |
| AFSVL_ROVOL, /* read-only volume */ |
| AFSVL_BACKVOL, /* backup volume */ |
| } __attribute__((packed)) afs_voltype_t; |
| |
| typedef enum { |
| AFS_FTYPE_INVALID = 0, |
| AFS_FTYPE_FILE = 1, |
| AFS_FTYPE_DIR = 2, |
| AFS_FTYPE_SYMLINK = 3, |
| } afs_file_type_t; |
| |
| typedef enum { |
| AFS_LOCK_READ = 0, /* read lock request */ |
| AFS_LOCK_WRITE = 1, /* write lock request */ |
| } afs_lock_type_t; |
| |
| #define AFS_LOCKWAIT (5 * 60) /* time until a lock times out (seconds) */ |
| |
| /* |
| * AFS file identifier |
| */ |
| struct afs_fid { |
| afs_volid_t vid; /* volume ID */ |
| afs_vnodeid_t vnode; /* Lower 64-bits of file index within volume */ |
| u32 vnode_hi; /* Upper 32-bits of file index */ |
| u32 unique; /* unique ID number (file index version) */ |
| }; |
| |
| /* |
| * AFS callback notification |
| */ |
| typedef enum { |
| AFSCM_CB_UNTYPED = 0, /* no type set on CB break */ |
| AFSCM_CB_EXCLUSIVE = 1, /* CB exclusive to CM [not implemented] */ |
| AFSCM_CB_SHARED = 2, /* CB shared by other CM's */ |
| AFSCM_CB_DROPPED = 3, /* CB promise cancelled by file server */ |
| } afs_callback_type_t; |
| |
| struct afs_callback { |
| time64_t expires_at; /* Time at which expires */ |
| //unsigned version; /* Callback version */ |
| //afs_callback_type_t type; /* Type of callback */ |
| }; |
| |
| struct afs_callback_break { |
| struct afs_fid fid; /* File identifier */ |
| //struct afs_callback cb; /* Callback details */ |
| }; |
| |
| #define AFSCBMAX 50 /* maximum callbacks transferred per bulk op */ |
| |
| struct afs_uuid { |
| __be32 time_low; /* low part of timestamp */ |
| __be16 time_mid; /* mid part of timestamp */ |
| __be16 time_hi_and_version; /* high part of timestamp and version */ |
| __s8 clock_seq_hi_and_reserved; /* clock seq hi and variant */ |
| __s8 clock_seq_low; /* clock seq low */ |
| __s8 node[6]; /* spatially unique node ID (MAC addr) */ |
| }; |
| |
| /* |
| * AFS volume information |
| */ |
| struct afs_volume_info { |
| afs_volid_t vid; /* volume ID */ |
| afs_voltype_t type; /* type of this volume */ |
| afs_volid_t type_vids[5]; /* volume ID's for possible types for this vol */ |
| |
| /* list of fileservers serving this volume */ |
| size_t nservers; /* number of entries used in servers[] */ |
| struct { |
| struct in_addr addr; /* fileserver address */ |
| } servers[8]; |
| }; |
| |
| /* |
| * AFS security ACE access mask |
| */ |
| typedef u32 afs_access_t; |
| #define AFS_ACE_READ 0x00000001U /* - permission to read a file/dir */ |
| #define AFS_ACE_WRITE 0x00000002U /* - permission to write/chmod a file */ |
| #define AFS_ACE_INSERT 0x00000004U /* - permission to create dirent in a dir */ |
| #define AFS_ACE_LOOKUP 0x00000008U /* - permission to lookup a file/dir in a dir */ |
| #define AFS_ACE_DELETE 0x00000010U /* - permission to delete a dirent from a dir */ |
| #define AFS_ACE_LOCK 0x00000020U /* - permission to lock a file */ |
| #define AFS_ACE_ADMINISTER 0x00000040U /* - permission to change ACL */ |
| #define AFS_ACE_USER_A 0x01000000U /* - 'A' user-defined permission */ |
| #define AFS_ACE_USER_B 0x02000000U /* - 'B' user-defined permission */ |
| #define AFS_ACE_USER_C 0x04000000U /* - 'C' user-defined permission */ |
| #define AFS_ACE_USER_D 0x08000000U /* - 'D' user-defined permission */ |
| #define AFS_ACE_USER_E 0x10000000U /* - 'E' user-defined permission */ |
| #define AFS_ACE_USER_F 0x20000000U /* - 'F' user-defined permission */ |
| #define AFS_ACE_USER_G 0x40000000U /* - 'G' user-defined permission */ |
| #define AFS_ACE_USER_H 0x80000000U /* - 'H' user-defined permission */ |
| |
| /* |
| * AFS file status information |
| */ |
| struct afs_file_status { |
| u64 size; /* file size */ |
| afs_dataversion_t data_version; /* current data version */ |
| struct timespec64 mtime_client; /* Last time client changed data */ |
| struct timespec64 mtime_server; /* Last time server changed data */ |
| s64 author; /* author ID */ |
| s64 owner; /* owner ID */ |
| s64 group; /* group ID */ |
| afs_access_t caller_access; /* access rights for authenticated caller */ |
| afs_access_t anon_access; /* access rights for unauthenticated caller */ |
| umode_t mode; /* UNIX mode */ |
| afs_file_type_t type; /* file type */ |
| u32 nlink; /* link count */ |
| s32 lock_count; /* file lock count (0=UNLK -1=WRLCK +ve=#RDLCK */ |
| u32 abort_code; /* Abort if bulk-fetching this failed */ |
| }; |
| |
| struct afs_status_cb { |
| struct afs_file_status status; |
| struct afs_callback callback; |
| unsigned int cb_break; /* Pre-op callback break counter */ |
| bool have_status; /* True if status record was retrieved */ |
| bool have_cb; /* True if cb record was retrieved */ |
| bool have_error; /* True if status.abort_code indicates an error */ |
| }; |
| |
| /* |
| * AFS file status change request |
| */ |
| |
| #define AFS_SET_MTIME 0x01 /* set the mtime */ |
| #define AFS_SET_OWNER 0x02 /* set the owner ID */ |
| #define AFS_SET_GROUP 0x04 /* set the group ID (unsupported?) */ |
| #define AFS_SET_MODE 0x08 /* set the UNIX mode */ |
| #define AFS_SET_SEG_SIZE 0x10 /* set the segment size (unsupported) */ |
| |
| /* |
| * AFS volume synchronisation information |
| */ |
| struct afs_volsync { |
| time64_t creation; /* volume creation time */ |
| }; |
| |
| /* |
| * AFS volume status record |
| */ |
| struct afs_volume_status { |
| afs_volid_t vid; /* volume ID */ |
| afs_volid_t parent_id; /* parent volume ID */ |
| u8 online; /* true if volume currently online and available */ |
| u8 in_service; /* true if volume currently in service */ |
| u8 blessed; /* same as in_service */ |
| u8 needs_salvage; /* true if consistency checking required */ |
| u32 type; /* volume type (afs_voltype_t) */ |
| u64 min_quota; /* minimum space set aside (blocks) */ |
| u64 max_quota; /* maximum space this volume may occupy (blocks) */ |
| u64 blocks_in_use; /* space this volume currently occupies (blocks) */ |
| u64 part_blocks_avail; /* space available in volume's partition */ |
| u64 part_max_blocks; /* size of volume's partition */ |
| s64 vol_copy_date; |
| s64 vol_backup_date; |
| }; |
| |
| #define AFS_BLOCK_SIZE 1024 |
| |
| /* |
| * XDR encoding of UUID in AFS. |
| */ |
| struct afs_uuid__xdr { |
| __be32 time_low; |
| __be32 time_mid; |
| __be32 time_hi_and_version; |
| __be32 clock_seq_hi_and_reserved; |
| __be32 clock_seq_low; |
| __be32 node[6]; |
| }; |
| |
| #endif /* AFS_H */ |