initial import

1 files changed, 134 insertions, 0 deletions

diff --git a/sunrpc/rpcsvc/klm_prot.x b/sunrpc/rpcsvc/klm_prot.x
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+/* @(#)klm_prot.x	2.1 88/08/01 4.0 RPCSRC */
+/* @(#)klm_prot.x 1.7 87/07/08 Copyr 1987 Sun Micro */
+
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ * 
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ * 
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ * 
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ * 
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ * 
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+
+/*
+ * Kernel/lock manager protocol definition
+ * Copyright (C) 1986 Sun Microsystems, Inc.
+ *
+ * protocol used between the UNIX kernel (the "client") and the
+ * local lock manager.  The local lock manager is a deamon running
+ * above the kernel.
+ */
+
+const	LM_MAXSTRLEN = 1024;
+
+/*
+ * lock manager status returns
+ */
+enum klm_stats {
+	klm_granted = 0,	/* lock is granted */
+	klm_denied = 1,		/* lock is denied */
+	klm_denied_nolocks = 2, /* no lock entry available */
+	klm_working = 3 	/* lock is being processed */
+};
+
+/*
+ * lock manager lock identifier
+ */
+struct klm_lock {
+	string server_name<LM_MAXSTRLEN>;
+	netobj fh;		/* a counted file handle */
+	int pid;		/* holder of the lock */
+	unsigned l_offset;	/* beginning offset of the lock */
+	unsigned l_len;		/* byte length of the lock;
+				 * zero means through end of file */
+};
+
+/*
+ * lock holder identifier
+ */
+struct klm_holder {
+	bool exclusive;		/* FALSE if shared lock */
+	int svid;		/* holder of the lock (pid) */
+	unsigned l_offset;	/* beginning offset of the lock */
+	unsigned l_len;		/* byte length of the lock;
+				 * zero means through end of file */
+};
+
+/*
+ * reply to KLM_LOCK / KLM_UNLOCK / KLM_CANCEL
+ */
+struct klm_stat {
+	klm_stats stat;
+};
+
+/*
+ * reply to a KLM_TEST call
+ */
+union klm_testrply switch (klm_stats stat) {
+	case klm_denied:
+		struct klm_holder holder;
+	default: /* All other cases return no arguments */
+		void;
+};
+
+
+/*
+ * arguments to KLM_LOCK
+ */
+struct klm_lockargs {
+	bool block;
+	bool exclusive;
+	struct klm_lock alock;
+};
+
+/*
+ * arguments to KLM_TEST
+ */
+struct klm_testargs {
+	bool exclusive;
+	struct klm_lock alock;
+};
+
+/*
+ * arguments to KLM_UNLOCK
+ */
+struct klm_unlockargs {
+	struct klm_lock alock;
+};
+
+program KLM_PROG {
+	version KLM_VERS {
+
+		klm_testrply	KLM_TEST (struct klm_testargs) =	1;
+
+		klm_stat	KLM_LOCK (struct klm_lockargs) =	2;
+
+		klm_stat	KLM_CANCEL (struct klm_lockargs) =	3;
+		/* klm_granted=> the cancel request fails due to lock is already granted */
+		/* klm_denied=> the cancel request successfully aborts
+lock request  */
+
+		klm_stat	KLM_UNLOCK (struct klm_unlockargs) =	4;
+	} = 1;
+} = 100020;
+