LXR linux/fs/afs/protocol

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/* YFS protocol bits
   3 *
   4 * Copyright (C) 2018 Red Hat, Inc. All Rights Reserved.
   5 * Written by David Howells (dhowells@redhat.com)
   6 */
   7
   8#define YFS_FS_SERVICE  2500
   9#define YFS_CM_SERVICE  2501
  10
  11#define YFSCBMAX 1024
  12
  13enum YFS_CM_Operations {
  14        YFSCBProbe              = 206,  /* probe client */
  15        YFSCBGetLock            = 207,  /* get contents of CM lock table */
  16        YFSCBXStatsVersion      = 209,  /* get version of extended statistics */
  17        YFSCBGetXStats          = 210,  /* get contents of extended statistics data */
  18        YFSCBInitCallBackState3 = 213,  /* initialise callback state, version 3 */
  19        YFSCBProbeUuid          = 214,  /* check the client hasn't rebooted */
  20        YFSCBGetServerPrefs     = 215,
  21        YFSCBGetCellServDV      = 216,
  22        YFSCBGetLocalCell       = 217,
  23        YFSCBGetCacheConfig     = 218,
  24        YFSCBGetCellByNum       = 65537,
  25        YFSCBTellMeAboutYourself = 65538, /* get client capabilities */
  26        YFSCBCallBack           = 64204,
  27};
  28
  29enum YFS_FS_Operations {
  30        YFSFETCHACL             = 64131, /* YFS Fetch file AFS3 ACL */
  31        YFSFETCHSTATUS          = 64132, /* YFS Fetch file status */
  32        YFSSTOREACL             = 64134, /* YFS Store file AFS3 ACL */
  33        YFSSTORESTATUS          = 64135, /* YFS Store file status */
  34        YFSREMOVEFILE           = 64136, /* YFS Remove a file */
  35        YFSCREATEFILE           = 64137, /* YFS Create a file */
  36        YFSRENAME               = 64138, /* YFS Rename or move a file or directory */
  37        YFSSYMLINK              = 64139, /* YFS Create a symbolic link */
  38        YFSLINK                 = 64140, /* YFS Create a hard link */
  39        YFSMAKEDIR              = 64141, /* YFS Create a directory */
  40        YFSREMOVEDIR            = 64142, /* YFS Remove a directory */
  41        YFSGETVOLUMESTATUS      = 64149, /* YFS Get volume status information */
  42        YFSSETVOLUMESTATUS      = 64150, /* YFS Set volume status information */
  43        YFSSETLOCK              = 64156, /* YFS Request a file lock */
  44        YFSEXTENDLOCK           = 64157, /* YFS Extend a file lock */
  45        YFSRELEASELOCK          = 64158, /* YFS Release a file lock */
  46        YFSLOOKUP               = 64161, /* YFS lookup file in directory */
  47        YFSFLUSHCPS             = 64165,
  48        YFSFETCHOPAQUEACL       = 64168, /* YFS Fetch file YFS ACL */
  49        YFSWHOAMI               = 64170,
  50        YFSREMOVEACL            = 64171,
  51        YFSREMOVEFILE2          = 64173,
  52        YFSSTOREOPAQUEACL2      = 64174,
  53        YFSINLINEBULKSTATUS     = 64536, /* YFS Fetch multiple file statuses with errors */
  54        YFSFETCHDATA64          = 64537, /* YFS Fetch file data */
  55        YFSSTOREDATA64          = 64538, /* YFS Store file data */
  56        YFSUPDATESYMLINK        = 64540,
  57};
  58
  59struct yfs_xdr_u64 {
  60        __be32                  msw;
  61        __be32                  lsw;
  62} __packed;
  63
  64static inline u64 xdr_to_u64(const struct yfs_xdr_u64 x)
  65{
  66        return ((u64)ntohl(x.msw) << 32) | ntohl(x.lsw);
  67}
  68
  69static inline struct yfs_xdr_u64 u64_to_xdr(const u64 x)
  70{
  71        return (struct yfs_xdr_u64){ .msw = htonl(x >> 32), .lsw = htonl(x) };
  72}
  73
  74struct yfs_xdr_vnode {
  75        struct yfs_xdr_u64      lo;
  76        __be32                  hi;
  77        __be32                  unique;
  78} __packed;
  79
  80struct yfs_xdr_YFSFid {
  81        struct yfs_xdr_u64      volume;
  82        struct yfs_xdr_vnode    vnode;
  83} __packed;
  84
  85
  86struct yfs_xdr_YFSFetchStatus {
  87        __be32                  type;
  88        __be32                  nlink;
  89        struct yfs_xdr_u64      size;
  90        struct yfs_xdr_u64      data_version;
  91        struct yfs_xdr_u64      author;
  92        struct yfs_xdr_u64      owner;
  93        struct yfs_xdr_u64      group;
  94        __be32                  mode;
  95        __be32                  caller_access;
  96        __be32                  anon_access;
  97        struct yfs_xdr_vnode    parent;
  98        __be32                  data_access_protocol;
  99        struct yfs_xdr_u64      mtime_client;
 100        struct yfs_xdr_u64      mtime_server;
 101        __be32                  lock_count;
 102        __be32                  abort_code;
 103} __packed;
 104
 105struct yfs_xdr_YFSCallBack {
 106        __be32                  version;
 107        struct yfs_xdr_u64      expiration_time;
 108        __be32                  type;
 109} __packed;
 110
 111struct yfs_xdr_YFSStoreStatus {
 112        __be32                  mask;
 113        __be32                  mode;
 114        struct yfs_xdr_u64      mtime_client;
 115        struct yfs_xdr_u64      owner;
 116        struct yfs_xdr_u64      group;
 117} __packed;
 118
 119struct yfs_xdr_RPCFlags {
 120        __be32                  rpc_flags;
 121} __packed;
 122
 123struct yfs_xdr_YFSVolSync {
 124        struct yfs_xdr_u64      vol_creation_date;
 125        struct yfs_xdr_u64      vol_update_date;
 126        struct yfs_xdr_u64      max_quota;
 127        struct yfs_xdr_u64      blocks_in_use;
 128        struct yfs_xdr_u64      blocks_avail;
 129} __packed;
 130
 131enum yfs_volume_type {
 132        yfs_volume_type_ro = 0,
 133        yfs_volume_type_rw = 1,
 134};
 135
 136#define yfs_FVSOnline           0x1
 137#define yfs_FVSInservice        0x2
 138#define yfs_FVSBlessed          0x4
 139#define yfs_FVSNeedsSalvage     0x8
 140
 141struct yfs_xdr_YFSFetchVolumeStatus {
 142        struct yfs_xdr_u64      vid;
 143        struct yfs_xdr_u64      parent_id;
 144        __be32                  flags;
 145        __be32                  type;
 146        struct yfs_xdr_u64      max_quota;
 147        struct yfs_xdr_u64      blocks_in_use;
 148        struct yfs_xdr_u64      part_blocks_avail;
 149        struct yfs_xdr_u64      part_max_blocks;
 150        struct yfs_xdr_u64      vol_copy_date;
 151        struct yfs_xdr_u64      vol_backup_date;
 152} __packed;
 153
 154struct yfs_xdr_YFSStoreVolumeStatus {
 155        __be32                  mask;
 156        struct yfs_xdr_u64      min_quota;
 157        struct yfs_xdr_u64      max_quota;
 158        struct yfs_xdr_u64      file_quota;
 159} __packed;
 160
 161enum yfs_lock_type {
 162        yfs_LockNone            = -1,
 163        yfs_LockRead            = 0,
 164        yfs_LockWrite           = 1,
 165        yfs_LockExtend          = 2,
 166        yfs_LockRelease         = 3,
 167        yfs_LockMandatoryRead   = 0x100,
 168        yfs_LockMandatoryWrite  = 0x101,
 169        yfs_LockMandatoryExtend = 0x102,
 170};
 171