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 (at) 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 */ 18 enum { 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
