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nlm_prot.x
/* @(#)nlm_prot.x 2.1 88/08/01 4.0 RPCSRC */ /* * Network lock manager protocol definition * Copyright (c) 2010, Oracle America, Inc. * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * Neither the name of the "Oracle America, Inc." nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * protocol used between local lock manager and remote lock manager */ #ifdef RPC_HDR %#define LM_MAXSTRLEN 1024 %#define MAXNAMELEN LM_MAXSTRLEN+1 #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; }; /* * 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;