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
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9 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
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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 $
32 * $DragonFly: src/include/rpcsvc/klm_prot.x,v 1.2 2003/06/17 06:25:58 dillon Exp $
36 * Kernel/lock manager protocol definition
37 * Copyright (C) 1986 Sun Microsystems, Inc.
39 * protocol used between the UNIX kernel (the "client") and the
40 * local lock manager. The local lock manager is a deamon running
44 const LM_MAXSTRLEN = 1024;
47 * lock manager status returns
50 klm_granted = 0, /* lock is granted */
51 klm_denied = 1, /* lock is denied */
52 klm_denied_nolocks = 2, /* no lock entry available */
53 klm_working = 3 /* lock is being processed */
57 * lock manager lock identifier
60 string server_name<LM_MAXSTRLEN>;
61 netobj fh; /* a counted file handle */
62 int pid; /* holder of the lock */
63 unsigned l_offset; /* beginning offset of the lock */
64 unsigned l_len; /* byte length of the lock;
65 * zero means through end of file */
69 * lock holder identifier
72 bool exclusive; /* FALSE if shared lock */
73 int svid; /* holder of the lock (pid) */
74 unsigned l_offset; /* beginning offset of the lock */
75 unsigned l_len; /* byte length of the lock;
76 * zero means through end of file */
80 * reply to KLM_LOCK / KLM_UNLOCK / KLM_CANCEL
87 * reply to a KLM_TEST call
89 union klm_testrply switch (klm_stats stat) {
91 struct klm_holder holder;
92 default: /* All other cases return no arguments */
98 * arguments to KLM_LOCK
100 struct klm_lockargs {
103 struct klm_lock alock;
107 * arguments to KLM_TEST
109 struct klm_testargs {
111 struct klm_lock alock;
115 * arguments to KLM_UNLOCK
117 struct klm_unlockargs {
118 struct klm_lock alock;
124 klm_testrply KLM_TEST (struct klm_testargs) = 1;
126 klm_stat KLM_LOCK (struct klm_lockargs) = 2;
128 klm_stat KLM_CANCEL (struct klm_lockargs) = 3;
129 /* klm_granted=> the cancel request fails due to lock is already granted */
130 /* klm_denied=> the cancel request successfully aborts
133 klm_stat KLM_UNLOCK (struct klm_unlockargs) = 4;