release/src-rt-6.x/linux/linux-2.6/fs/afs/afs_vl.h

   1 /* AFS Volume Location Service client interface
   2  *
   3  * Copyright (C) 2002, 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   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.
  10  */
  11
  12 #ifndef AFS_VL_H
  13 #define AFS_VL_H
  14
  15 #include "afs.h"
  16
  17 #define AFS_VL_PORT             7003    /* volume location service port */
  18 #define VL_SERVICE              52      /* RxRPC service ID for the Volume Location service */
  19
  20 enum AFSVL_Operations {
  21         VLGETENTRYBYID          = 503,  /* AFS Get Cache Entry By ID operation ID */
  22         VLGETENTRYBYNAME        = 504,  /* AFS Get Cache Entry By Name operation ID */
  23         VLPROBE                 = 514,  /* AFS Probe Volume Location Service operation ID */
  24 };
  25
  26 enum AFSVL_Errors {
  27         AFSVL_IDEXIST           = 363520,       /* Volume Id entry exists in vl database */
  28         AFSVL_IO                = 363521,       /* I/O related error */
  29         AFSVL_NAMEEXIST         = 363522,       /* Volume name entry exists in vl database */
  30         AFSVL_CREATEFAIL        = 363523,       /* Internal creation failure */
  31         AFSVL_NOENT             = 363524,       /* No such entry */
  32         AFSVL_EMPTY             = 363525,       /* Vl database is empty */
  33         AFSVL_ENTDELETED        = 363526,       /* Entry is deleted (soft delete) */
  34         AFSVL_BADNAME           = 363527,       /* Volume name is illegal */
  35         AFSVL_BADINDEX          = 363528,       /* Index is out of range */
  36         AFSVL_BADVOLTYPE        = 363529,       /* Bad volume type */
  37         AFSVL_BADSERVER         = 363530,       /* Illegal server number (out of range) */
  38         AFSVL_BADPARTITION      = 363531,       /* Bad partition number */
  39         AFSVL_REPSFULL          = 363532,       /* Run out of space for Replication sites */
  40         AFSVL_NOREPSERVER       = 363533,       /* No such Replication server site exists */
  41         AFSVL_DUPREPSERVER      = 363534,       /* Replication site already exists */
  42         AFSVL_RWNOTFOUND        = 363535,       /* Parent R/W entry not found */
  43         AFSVL_BADREFCOUNT       = 363536,       /* Illegal Reference Count number */
  44         AFSVL_SIZEEXCEEDED      = 363537,       /* Vl size for attributes exceeded */
  45         AFSVL_BADENTRY          = 363538,       /* Bad incoming vl entry */
  46         AFSVL_BADVOLIDBUMP      = 363539,       /* Illegal max volid increment */
  47         AFSVL_IDALREADYHASHED   = 363540,       /* RO/BACK id already hashed */
  48         AFSVL_ENTRYLOCKED       = 363541,       /* Vl entry is already locked */
  49         AFSVL_BADVOLOPER        = 363542,       /* Bad volume operation code */
  50         AFSVL_BADRELLOCKTYPE    = 363543,       /* Bad release lock type */
  51         AFSVL_RERELEASE         = 363544,       /* Status report: last release was aborted */
  52         AFSVL_BADSERVERFLAG     = 363545,       /* Invalid replication site server °ag */
  53         AFSVL_PERM              = 363546,       /* No permission access */
  54         AFSVL_NOMEM             = 363547,       /* malloc/realloc failed to alloc enough memory */
  55 };
  56
  57 /*
  58  * maps to "struct vldbentry" in vvl-spec.pdf
  59  */
  60 struct afs_vldbentry {
  61         char            name[65];               /* name of volume (with NUL char) */
  62         afs_voltype_t   type;                   /* volume type */
  63         unsigned        num_servers;            /* num servers that hold instances of this vol */
  64         unsigned        clone_id;               /* cloning ID */
  65
  66         unsigned        flags;
  67 #define AFS_VLF_RWEXISTS        0x1000          /* R/W volume exists */
  68 #define AFS_VLF_ROEXISTS        0x2000          /* R/O volume exists */
  69 #define AFS_VLF_BACKEXISTS      0x4000          /* backup volume exists */
  70
  71         afs_volid_t     volume_ids[3];          /* volume IDs */
  72
  73         struct {
  74                 struct in_addr  addr;           /* server address */
  75                 unsigned        partition;      /* partition ID on this server */
  76                 unsigned        flags;          /* server specific flags */
  77 #define AFS_VLSF_NEWREPSITE     0x0001  /* unused */
  78 #define AFS_VLSF_ROVOL          0x0002  /* this server holds a R/O instance of the volume */
  79 #define AFS_VLSF_RWVOL          0x0004  /* this server holds a R/W instance of the volume */
  80 #define AFS_VLSF_BACKVOL        0x0008  /* this server holds a backup instance of the volume */
  81         } servers[8];
  82 };
  83
  84 #endif /* AFS_VL_H */