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.
9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
10 * WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
11 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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.
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.
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.
25 * Sun Microsystems, Inc.
27 * Mountain View, California 94043
29 * @(#)klm_prot.x 1.7 87/07/08 Copyr 1987 Sun Micro
30 * @(#)klm_prot.x 2.1 88/08/01 4.0 RPCSRC
31 * $FreeBSD: src/include/rpcsvc/klm_prot.x,v 1.6 1999/08/27 23:45:08 peter Exp $
35 * Kernel/lock manager protocol definition
36 * Copyright (C) 1986 Sun Microsystems, Inc.
38 * protocol used between the UNIX kernel (the "client") and the
39 * local lock manager. The local lock manager is a deamon running
43 const LM_MAXSTRLEN = 1024;
46 * lock manager status returns
49 klm_granted = 0, /* lock is granted */
50 klm_denied = 1, /* lock is denied */
51 klm_denied_nolocks = 2, /* no lock entry available */
52 klm_working = 3 /* lock is being processed */
56 * lock manager lock identifier
59 string server_name<LM_MAXSTRLEN>;
60 netobj fh; /* a counted file handle */
61 int pid; /* holder of the lock */
62 unsigned l_offset; /* beginning offset of the lock */
63 unsigned l_len; /* byte length of the lock;
64 * zero means through end of file */
68 * lock holder identifier
71 bool exclusive; /* FALSE if shared lock */
72 int svid; /* holder of the lock (pid) */
73 unsigned l_offset; /* beginning offset of the lock */
74 unsigned l_len; /* byte length of the lock;
75 * zero means through end of file */
79 * reply to KLM_LOCK / KLM_UNLOCK / KLM_CANCEL
86 * reply to a KLM_TEST call
88 union klm_testrply switch (klm_stats stat) {
90 struct klm_holder holder;
91 default: /* All other cases return no arguments */
97 * arguments to KLM_LOCK
102 struct klm_lock alock;
106 * arguments to KLM_TEST
108 struct klm_testargs {
110 struct klm_lock alock;
114 * arguments to KLM_UNLOCK
116 struct klm_unlockargs {
117 struct klm_lock alock;
123 klm_testrply KLM_TEST (struct klm_testargs) = 1;
125 klm_stat KLM_LOCK (struct klm_lockargs) = 2;
127 klm_stat KLM_CANCEL (struct klm_lockargs) = 3;
128 /* klm_granted=> the cancel request fails due to lock is already granted */
129 /* klm_denied=> the cancel request successfully aborts
132 klm_stat KLM_UNLOCK (struct klm_unlockargs) = 4;