/*
* 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
%#include <sys/cdefs.h>
%#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";*/
%__RCSID("$NetBSD: nlm_prot.x,v 1.7 2004/07/01 22:52:34 kleink 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>;
       long state;
};

#ifdef RPC_HDR
%/* definitions for NLM version 4 */
#endif
enum nlm4_stats {
       nlm4_granted                    = 0,
       nlm4_denied                     = 1,
       nlm4_denied_nolock              = 2,
       nlm4_blocked                    = 3,
       nlm4_denied_grace_period        = 4,
       nlm4_deadlck                    = 5,
       nlm4_rofs                       = 6,
       nlm4_stale_fh                   = 7,
       nlm4_fbig                       = 8,
       nlm4_failed                     = 9
};

struct nlm4_stat {
       nlm4_stats stat;
};

struct nlm4_holder {
       bool exclusive;
       u_int32_t svid;
       netobj oh;
       u_int64_t l_offset;
       u_int64_t l_len;
};

struct nlm4_lock {
       string caller_name<MAXNAMELEN>;
       netobj fh;
       netobj oh;
       u_int32_t svid;
       u_int64_t l_offset;
       u_int64_t l_len;
};

struct nlm4_share {
       string caller_name<MAXNAMELEN>;
       netobj fh;
       netobj oh;
       fsh_mode mode;
       fsh_access access;
};

union nlm4_testrply switch (nlm4_stats stat) {
       case nlm_denied:
               struct nlm4_holder holder;
       default:
               void;
};

struct nlm4_testres {
       netobj cookie;
       nlm4_testrply stat;
};

struct nlm4_testargs {
       netobj cookie;
       bool exclusive;
       struct nlm4_lock alock;
};

struct nlm4_res {
       netobj cookie;
       nlm4_stat stat;
};

struct nlm4_lockargs {
       netobj cookie;
       bool block;
       bool exclusive;
       struct nlm4_lock alock;
       bool reclaim;           /* used for recovering locks */
       int state;              /* specify local status monitor state */
};

struct nlm4_cancargs {
       netobj cookie;
       bool block;
       bool exclusive;
       struct nlm4_lock alock;
};

struct nlm4_unlockargs {
       netobj cookie;
       struct nlm4_lock alock;
};

struct  nlm4_shareargs {
       netobj  cookie;
       nlm4_share      share;
       bool    reclaim;
};

struct  nlm4_shareres {
       netobj  cookie;
       nlm4_stats      stat;
       int     sequence;
};

/*
* argument for the procedure called by rpc.statd when a monitored host
* status change.
* XXX assumes LM_MAXSTRLEN == SM_MAXSTRLEN
*/
struct nlm_sm_status {
       string mon_name<LM_MAXSTRLEN>; /* name of host */
       int state;                      /* new state */
       opaque priv[16];                /* private data */
};

/*
* Over-the-wire protocol used between the network lock managers
*/

program NLM_PROG {
       version NLM_SM {
               void NLM_SM_NOTIFY(struct nlm_sm_status) = 1;
       } = 0;

       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;

       version NLM_VERS4 {
               nlm4_testres NLM4_TEST(nlm4_testargs) = 1;
               nlm4_res NLM4_LOCK(nlm4_lockargs) = 2;
               nlm4_res NLM4_CANCEL(nlm4_cancargs) = 3;
               nlm4_res NLM4_UNLOCK(nlm4_unlockargs) = 4;
               nlm4_res NLM4_GRANTED(nlm4_testargs) = 5;
               void NLM4_TEST_MSG(nlm4_testargs) = 6;
               void NLM4_LOCK_MSG(nlm4_lockargs) = 7;
               void NLM4_CANCEL_MSG(nlm4_cancargs) = 8;
               void NLM4_UNLOCK_MSG(nlm4_unlockargs) = 9;
               void NLM4_GRANTED_MSG(nlm4_testargs) = 10;
               void NLM4_TEST_RES(nlm4_testres) = 11;
               void NLM4_LOCK_RES(nlm4_res) = 12;
               void NLM4_CANCEL_RES(nlm4_res) = 13;
               void NLM4_UNLOCK_RES(nlm4_res) = 14;
               void NLM4_GRANTED_RES(nlm4_res) = 15;
               nlm4_shareres NLM4_SHARE(nlm4_shareargs) = 20;
               nlm4_shareres NLM4_UNSHARE(nlm4_shareargs) = 21;
               nlm4_res NLM4_NM_LOCK(nlm4_lockargs) = 22;
               void NLM4_FREE_ALL(nlm_notify) = 23;
       } = 4;
} = 100021;

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