LXR linux/include/linux/lockd/nlm.h

   1/*
   2 * linux/include/linux/lockd/nlm.h
   3 *
   4 * Declarations for the Network Lock Manager protocol.
   5 *
   6 * Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
   7 */
   8
   9#ifndef LINUX_LOCKD_NLM_H
  10#define LINUX_LOCKD_NLM_H
  11
  12
  13/* Maximum file offset in file_lock.fl_end */
  14# define NLM_OFFSET_MAX         ((s32) 0x7fffffff)
  15# define NLM4_OFFSET_MAX        ((s64) ((~(u64)0) >> 1))
  16
  17/* Return states for NLM */
  18enum {
  19        NLM_LCK_GRANTED                 = 0,
  20        NLM_LCK_DENIED                  = 1,
  21        NLM_LCK_DENIED_NOLOCKS          = 2,
  22        NLM_LCK_BLOCKED                 = 3,
  23        NLM_LCK_DENIED_GRACE_PERIOD     = 4,
  24#ifdef CONFIG_LOCKD_V4
  25        NLM_DEADLCK                     = 5,
  26        NLM_ROFS                        = 6,
  27        NLM_STALE_FH                    = 7,
  28        NLM_FBIG                        = 8,
  29        NLM_FAILED                      = 9,
  30#endif
  31};
  32
  33#define NLM_PROGRAM             100021
  34
  35#define NLMPROC_NULL            0
  36#define NLMPROC_TEST            1
  37#define NLMPROC_LOCK            2
  38#define NLMPROC_CANCEL          3
  39#define NLMPROC_UNLOCK          4
  40#define NLMPROC_GRANTED         5
  41#define NLMPROC_TEST_MSG        6
  42#define NLMPROC_LOCK_MSG        7
  43#define NLMPROC_CANCEL_MSG      8
  44#define NLMPROC_UNLOCK_MSG      9
  45#define NLMPROC_GRANTED_MSG     10
  46#define NLMPROC_TEST_RES        11
  47#define NLMPROC_LOCK_RES        12
  48#define NLMPROC_CANCEL_RES      13
  49#define NLMPROC_UNLOCK_RES      14
  50#define NLMPROC_GRANTED_RES     15
  51#define NLMPROC_NSM_NOTIFY      16              /* statd callback */
  52#define NLMPROC_SHARE           20
  53#define NLMPROC_UNSHARE         21
  54#define NLMPROC_NM_LOCK         22
  55#define NLMPROC_FREE_ALL        23
  56
  57#endif /* LINUX_LOCKD_NLM_H */
  58