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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070012
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 */