126 строки
3.4 KiB
C
126 строки
3.4 KiB
C
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/* types.h: AFS types
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*
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* Copyright (C) 2002 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _LINUX_AFS_TYPES_H
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#define _LINUX_AFS_TYPES_H
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#ifdef __KERNEL__
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#include <rxrpc/types.h>
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#endif /* __KERNEL__ */
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typedef unsigned afs_volid_t;
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typedef unsigned afs_vnodeid_t;
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typedef unsigned long long afs_dataversion_t;
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typedef enum {
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AFSVL_RWVOL, /* read/write volume */
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AFSVL_ROVOL, /* read-only volume */
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AFSVL_BACKVOL, /* backup volume */
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} __attribute__((packed)) afs_voltype_t;
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typedef enum {
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AFS_FTYPE_INVALID = 0,
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AFS_FTYPE_FILE = 1,
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AFS_FTYPE_DIR = 2,
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AFS_FTYPE_SYMLINK = 3,
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} afs_file_type_t;
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#ifdef __KERNEL__
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struct afs_cell;
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struct afs_vnode;
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/*****************************************************************************/
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/*
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* AFS file identifier
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*/
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struct afs_fid
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{
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afs_volid_t vid; /* volume ID */
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afs_vnodeid_t vnode; /* file index within volume */
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unsigned unique; /* unique ID number (file index version) */
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};
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/*****************************************************************************/
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/*
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* AFS callback notification
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*/
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typedef enum {
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AFSCM_CB_UNTYPED = 0, /* no type set on CB break */
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AFSCM_CB_EXCLUSIVE = 1, /* CB exclusive to CM [not implemented] */
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AFSCM_CB_SHARED = 2, /* CB shared by other CM's */
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AFSCM_CB_DROPPED = 3, /* CB promise cancelled by file server */
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} afs_callback_type_t;
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struct afs_callback
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{
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struct afs_server *server; /* server that made the promise */
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struct afs_fid fid; /* file identifier */
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unsigned version; /* callback version */
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unsigned expiry; /* time at which expires */
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afs_callback_type_t type; /* type of callback */
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};
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#define AFSCBMAX 50
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/*****************************************************************************/
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/*
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* AFS volume information
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*/
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struct afs_volume_info
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{
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afs_volid_t vid; /* volume ID */
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afs_voltype_t type; /* type of this volume */
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afs_volid_t type_vids[5]; /* volume ID's for possible types for this vol */
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/* list of fileservers serving this volume */
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size_t nservers; /* number of entries used in servers[] */
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struct {
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struct in_addr addr; /* fileserver address */
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} servers[8];
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};
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/*****************************************************************************/
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/*
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* AFS file status information
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*/
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struct afs_file_status
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{
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unsigned if_version; /* interface version */
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#define AFS_FSTATUS_VERSION 1
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afs_file_type_t type; /* file type */
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unsigned nlink; /* link count */
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size_t size; /* file size */
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afs_dataversion_t version; /* current data version */
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unsigned author; /* author ID */
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unsigned owner; /* owner ID */
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unsigned caller_access; /* access rights for authenticated caller */
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unsigned anon_access; /* access rights for unauthenticated caller */
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umode_t mode; /* UNIX mode */
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struct afs_fid parent; /* parent file ID */
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time_t mtime_client; /* last time client changed data */
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time_t mtime_server; /* last time server changed data */
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};
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/*****************************************************************************/
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/*
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* AFS volume synchronisation information
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*/
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struct afs_volsync
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{
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time_t creation; /* volume creation time */
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};
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#endif /* __KERNEL__ */
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#endif /* _LINUX_AFS_TYPES_H */
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