1 /* @(#)nlm_prot.x 2.1 88/08/01 4.0 RPCSRC */ 2 /* @(#)nlm_prot.x 1.8 87/09/21 Copyr 1987 Sun Micro */ 3 4 /* 5 * Network lock manager protocol definition 6 * Copyright (C) 1986 Sun Microsystems, Inc. 7 * 8 * protocol used between local lock manager and remote lock manager 9 */ 10 11 #ifdef RPC_HDR 12 %#define LM_MAXSTRLEN 1024 13 %#define MAXNAMELEN LM_MAXSTRLEN+1 14 #else 15 %#ifndef lint 16 %static const char rcsid[] = 17 % "$FreeBSD$"; 18 %#endif /* not lint */ 19 #endif 20 21 /* 22 * status of a call to the lock manager 23 */ 24 enum nlm_stats { 25 nlm_granted = 0, 26 nlm_denied = 1, 27 nlm_denied_nolocks = 2, 28 nlm_blocked = 3, 29 nlm_denied_grace_period = 4 30 }; 31 32 struct nlm_holder { 33 bool exclusive; 34 int svid; 35 netobj oh; 36 unsigned l_offset; 37 unsigned l_len; 38 }; 39 40 union nlm_testrply switch (nlm_stats stat) { 41 case nlm_denied: 42 struct nlm_holder holder; 43 default: 44 void; 45 }; 46 47 struct nlm_stat { 48 nlm_stats stat; 49 }; 50 51 struct nlm_res { 52 netobj cookie; 53 nlm_stat stat; 54 }; 55 56 struct nlm_testres { 57 netobj cookie; 58 nlm_testrply stat; 59 }; 60 61 struct nlm_lock { 62 string caller_name<LM_MAXSTRLEN>; 63 netobj fh; /* identify a file */ 64 netobj oh; /* identify owner of a lock */ 65 int svid; /* generated from pid for svid */ 66 unsigned l_offset; 67 unsigned l_len; 68 }; 69 70 struct nlm_lockargs { 71 netobj cookie; 72 bool block; 73 bool exclusive; 74 struct nlm_lock alock; 75 bool reclaim; /* used for recovering locks */ 76 int state; /* specify local status monitor state */ 77 }; 78 79 struct nlm_cancargs { 80 netobj cookie; 81 bool block; 82 bool exclusive; 83 struct nlm_lock alock; 84 }; 85 86 struct nlm_testargs { 87 netobj cookie; 88 bool exclusive; 89 struct nlm_lock alock; 90 }; 91 92 struct nlm_unlockargs { 93 netobj cookie; 94 struct nlm_lock alock; 95 }; 96 97 98 #ifdef RPC_HDR 99 %/* 100 % * The following enums are actually bit encoded for efficient 101 % * boolean algebra.... DON'T change them..... 102 % */ 103 #endif 104 enum fsh_mode { 105 fsm_DN = 0, /* deny none */ 106 fsm_DR = 1, /* deny read */ 107 fsm_DW = 2, /* deny write */ 108 fsm_DRW = 3 /* deny read/write */ 109 }; 110 111 enum fsh_access { 112 fsa_NONE = 0, /* for completeness */ 113 fsa_R = 1, /* read only */ 114 fsa_W = 2, /* write only */ 115 fsa_RW = 3 /* read/write */ 116 }; 117 118 struct nlm_share { 119 string caller_name<LM_MAXSTRLEN>; 120 netobj fh; 121 netobj oh; 122 fsh_mode mode; 123 fsh_access access; 124 }; 125 126 struct nlm_shareargs { 127 netobj cookie; 128 nlm_share share; 129 bool reclaim; 130 }; 131 132 struct nlm_shareres { 133 netobj cookie; 134 nlm_stats stat; 135 int sequence; 136 }; 137 138 struct nlm_notify { 139 string name<MAXNAMELEN>; 140 long state; 141 }; 142 143 /* 144 * Over-the-wire protocol used between the network lock managers 145 */ 146 147 program NLM_PROG { 148 version NLM_VERS { 149 150 nlm_testres NLM_TEST(struct nlm_testargs) = 1; 151 152 nlm_res NLM_LOCK(struct nlm_lockargs) = 2; 153 154 nlm_res NLM_CANCEL(struct nlm_cancargs) = 3; 155 nlm_res NLM_UNLOCK(struct nlm_unlockargs) = 4; 156 157 /* 158 * remote lock manager call-back to grant lock 159 */ 160 nlm_res NLM_GRANTED(struct nlm_testargs)= 5; 161 /* 162 * message passing style of requesting lock 163 */ 164 void NLM_TEST_MSG(struct nlm_testargs) = 6; 165 void NLM_LOCK_MSG(struct nlm_lockargs) = 7; 166 void NLM_CANCEL_MSG(struct nlm_cancargs) =8; 167 void NLM_UNLOCK_MSG(struct nlm_unlockargs) = 9; 168 void NLM_GRANTED_MSG(struct nlm_testargs) = 10; 169 void NLM_TEST_RES(nlm_testres) = 11; 170 void NLM_LOCK_RES(nlm_res) = 12; 171 void NLM_CANCEL_RES(nlm_res) = 13; 172 void NLM_UNLOCK_RES(nlm_res) = 14; 173 void NLM_GRANTED_RES(nlm_res) = 15; 174 } = 1; 175 176 version NLM_VERSX { 177 nlm_shareres NLM_SHARE(nlm_shareargs) = 20; 178 nlm_shareres NLM_UNSHARE(nlm_shareargs) = 21; 179 nlm_res NLM_NM_LOCK(nlm_lockargs) = 22; 180 void NLM_FREE_ALL(nlm_notify) = 23; 181 } = 3; 182 183 } = 100021; 184 185