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/* $OpenBSD: nlm_prot.x,v 1.4 2004/01/17 12:32:11 deraadt Exp $ */
/*
* Network lock manager protocol definition
* Copyright (C) 1986 Sun Microsystems, Inc.
*
* protocol used between local lock manager and remote lock manager
*/
#ifdef RPC_HDR
%#define LM_MAXSTRLEN 1024
%#define MAXNAMELEN LM_MAXSTRLEN+1
#else
%#ifndef lint
%/*static char sccsid[] = "from: @(#)nlm_prot.x 1.8 87/09/21 Copyr 1987 Sun Micro";*/
%/*static char sccsid[] = "from: * @(#)nlm_prot.x 2.1 88/08/01 4.0 RPCSRC";*/
%static char rcsid[] = "$OpenBSD: nlm_prot.x,v 1.4 2004/01/17 12:32:11 deraadt Exp $";
%#endif /* not lint */
#endif
/*
* status of a call to the lock manager
*/
enum nlm_stats {
nlm_granted = 0,
nlm_denied = 1,
nlm_denied_nolocks = 2,
nlm_blocked = 3,
nlm_denied_grace_period = 4
};
struct nlm_holder {
bool exclusive;
int svid;
netobj oh;
unsigned l_offset;
unsigned l_len;
};
union nlm_testrply switch (nlm_stats stat) {
case nlm_denied:
struct nlm_holder holder;
default:
void;
};
struct nlm_stat {
nlm_stats stat;
};
struct nlm_res {
netobj cookie;
nlm_stat stat;
};
struct nlm_testres {
netobj cookie;
nlm_testrply stat;
};
struct nlm_lock {
string caller_name<LM_MAXSTRLEN>;
netobj fh; /* identify a file */
netobj oh; /* identify owner of a lock */
int svid; /* generated from pid for svid */
unsigned l_offset;
unsigned l_len;
};
struct nlm_lockargs {
netobj cookie;
bool block;
bool exclusive;
struct nlm_lock alock;
bool reclaim; /* used for recovering locks */
int state; /* specify local status monitor state */
};
struct nlm_cancargs {
netobj cookie;
bool block;
bool exclusive;
struct nlm_lock alock;
};
struct nlm_testargs {
netobj cookie;
bool exclusive;
struct nlm_lock alock;
};
struct nlm_unlockargs {
netobj cookie;
struct nlm_lock alock;
};
#ifdef RPC_HDR
%/*
% * The following enums are actually bit encoded for efficient
% * boolean algebra.... DON'T change them.....
% */
#endif
enum fsh_mode {
fsm_DN = 0, /* deny none */
fsm_DR = 1, /* deny read */
fsm_DW = 2, /* deny write */
fsm_DRW = 3 /* deny read/write */
};
enum fsh_access {
fsa_NONE = 0, /* for completeness */
fsa_R = 1, /* read only */
fsa_W = 2, /* write only */
fsa_RW = 3 /* read/write */
};
struct nlm_share {
string caller_name<LM_MAXSTRLEN>;
netobj fh;
netobj oh;
fsh_mode mode;
fsh_access access;
};
struct nlm_shareargs {
netobj cookie;
nlm_share share;
bool reclaim;
};
struct nlm_shareres {
netobj cookie;
nlm_stats stat;
int sequence;
};
struct nlm_notify {
string name<MAXNAMELEN>;
int state;
};
/*
* Over-the-wire protocol used between the network lock managers
*/
program NLM_PROG {
version NLM_VERS {
nlm_testres NLM_TEST(struct nlm_testargs) = 1;
nlm_res NLM_LOCK(struct nlm_lockargs) = 2;
nlm_res NLM_CANCEL(struct nlm_cancargs) = 3;
nlm_res NLM_UNLOCK(struct nlm_unlockargs) = 4;
/*
* remote lock manager call-back to grant lock
*/
nlm_res NLM_GRANTED(struct nlm_testargs)= 5;
/*
* message passing style of requesting lock
*/
void NLM_TEST_MSG(struct nlm_testargs) = 6;
void NLM_LOCK_MSG(struct nlm_lockargs) = 7;
void NLM_CANCEL_MSG(struct nlm_cancargs) =8;
void NLM_UNLOCK_MSG(struct nlm_unlockargs) = 9;
void NLM_GRANTED_MSG(struct nlm_testargs) = 10;
void NLM_TEST_RES(nlm_testres) = 11;
void NLM_LOCK_RES(nlm_res) = 12;
void NLM_CANCEL_RES(nlm_res) = 13;
void NLM_UNLOCK_RES(nlm_res) = 14;
void NLM_GRANTED_RES(nlm_res) = 15;
} = 1;
version NLM_VERSX {
nlm_shareres NLM_SHARE(nlm_shareargs) = 20;
nlm_shareres NLM_UNSHARE(nlm_shareargs) = 21;
nlm_res NLM_NM_LOCK(nlm_lockargs) = 22;
void NLM_FREE_ALL(nlm_notify) = 23;
} = 3;
} = 100021;
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