1 /* 2 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for 3 * unrestricted use provided that this legend is included on all tape 4 * media and as a part of the software program in whole or part. Users 5 * may copy or modify Sun RPC without charge, but are not authorized 6 * to license or distribute it to anyone else except as part of a product or 7 * program developed by the user. 8 * 9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE 10 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR 11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. 12 * 13 * Sun RPC is provided with no support and without any obligation on the 14 * part of Sun Microsystems, Inc. to assist in its use, correction, 15 * modification or enhancement. 16 * 17 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE 18 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC 19 * OR ANY PART THEREOF. 20 * 21 * In no event will Sun Microsystems, Inc. be liable for any lost revenue 22 * or profits or other special, indirect and consequential damages, even if 23 * Sun has been advised of the possibility of such damages. 24 * 25 * Sun Microsystems, Inc. 26 * 2550 Garcia Avenue 27 * Mountain View, California 94043 28 */ 29 30 /* 31 * Kernel/lock manager protocol definition 32 * Copyright (C) 1986 Sun Microsystems, Inc. 33 * 34 * protocol used between the UNIX kernel (the "client") and the 35 * local lock manager. The local lock manager is a deamon running 36 * above the kernel. 37 */ 38 39 #ifndef RPC_HDR 40 %#ifndef lint 41 %/*static char sccsid[] = "from: @(#)klm_prot.x 1.7 87/07/08 Copyr 1987 Sun Micro";*/ 42 %/*static char sccsid[] = "from: @(#)klm_prot.x 2.1 88/08/01 4.0 RPCSRC";*/ 43 %#endif /* not lint */ 44 %#include <sys/cdefs.h> 45 %__FBSDID("$FreeBSD$"); 46 #endif 47 48 const LM_MAXSTRLEN = 1024; 49 50 /* 51 * lock manager status returns 52 */ 53 enum klm_stats { 54 klm_granted = 0, /* lock is granted */ 55 klm_denied = 1, /* lock is denied */ 56 klm_denied_nolocks = 2, /* no lock entry available */ 57 klm_working = 3 /* lock is being processed */ 58 }; 59 60 /* 61 * lock manager lock identifier 62 */ 63 struct klm_lock { 64 string server_name<LM_MAXSTRLEN>; 65 netobj fh; /* a counted file handle */ 66 int pid; /* holder of the lock */ 67 unsigned l_offset; /* beginning offset of the lock */ 68 unsigned l_len; /* byte length of the lock; 69 * zero means through end of file */ 70 }; 71 72 /* 73 * lock holder identifier 74 */ 75 struct klm_holder { 76 bool exclusive; /* FALSE if shared lock */ 77 int svid; /* holder of the lock (pid) */ 78 unsigned l_offset; /* beginning offset of the lock */ 79 unsigned l_len; /* byte length of the lock; 80 * zero means through end of file */ 81 }; 82 83 /* 84 * reply to KLM_LOCK / KLM_UNLOCK / KLM_CANCEL 85 */ 86 struct klm_stat { 87 klm_stats stat; 88 }; 89 90 /* 91 * reply to a KLM_TEST call 92 */ 93 union klm_testrply switch (klm_stats stat) { 94 case klm_denied: 95 struct klm_holder holder; 96 default: /* All other cases return no arguments */ 97 void; 98 }; 99 100 101 /* 102 * arguments to KLM_LOCK 103 */ 104 struct klm_lockargs { 105 bool block; 106 bool exclusive; 107 struct klm_lock alock; 108 }; 109 110 /* 111 * arguments to KLM_TEST 112 */ 113 struct klm_testargs { 114 bool exclusive; 115 struct klm_lock alock; 116 }; 117 118 /* 119 * arguments to KLM_UNLOCK 120 */ 121 struct klm_unlockargs { 122 struct klm_lock alock; 123 }; 124 125 program KLM_PROG { 126 version KLM_VERS { 127 128 klm_testrply KLM_TEST (struct klm_testargs) = 1; 129 130 klm_stat KLM_LOCK (struct klm_lockargs) = 2; 131 132 klm_stat KLM_CANCEL (struct klm_lockargs) = 3; 133 /* klm_granted=> the cancel request fails due to lock is already granted */ 134 /* klm_denied=> the cancel request successfully aborts 135 lock request */ 136 137 klm_stat KLM_UNLOCK (struct klm_unlockargs) = 4; 138 } = 1; 139 } = 100020; 140