1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 2000 by Sun Microsystems, Inc. 24*0Sstevel@tonic-gate * All rights reserved. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #ifndef DSVCD_DSVCLOCKD_H 28*0Sstevel@tonic-gate #define DSVCD_DSVCLOCKD_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include <sys/param.h> 33*0Sstevel@tonic-gate #include <sys/types.h> 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate /* 36*0Sstevel@tonic-gate * Data structures and constants that are shared between dsvclockd and 37*0Sstevel@tonic-gate * libdhcpsvc. This protocol is project-private and is thus subject to 38*0Sstevel@tonic-gate * change at any time. 39*0Sstevel@tonic-gate */ 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate #ifdef __cplusplus 42*0Sstevel@tonic-gate extern "C" { 43*0Sstevel@tonic-gate #endif 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate #define DSVCD_DOOR_VERSION 1 /* current protocol version */ 46*0Sstevel@tonic-gate #define DSVCD_PATH "/usr/lib/inet/dsvclockd" 47*0Sstevel@tonic-gate #define DSVCD_DOOR_FMT "/var/run/dsvclockd_%s_door" 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate typedef enum { DSVCD_LOCK, DSVCD_UNLOCK } dsvcd_reqtype_t; 50*0Sstevel@tonic-gate typedef enum { DSVCD_NOLOCK, DSVCD_RDLOCK, DSVCD_WRLOCK } dsvcd_locktype_t; 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate typedef struct { 53*0Sstevel@tonic-gate uint8_t rq_version; /* version of the API */ 54*0Sstevel@tonic-gate dsvcd_reqtype_t rq_reqtype; /* request type */ 55*0Sstevel@tonic-gate } dsvcd_request_t; 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate typedef struct { 58*0Sstevel@tonic-gate uint8_t rp_version; /* version of the API */ 59*0Sstevel@tonic-gate int32_t rp_retval; /* DSVC_* return value */ 60*0Sstevel@tonic-gate } dsvcd_reply_t; 61*0Sstevel@tonic-gate 62*0Sstevel@tonic-gate typedef struct { 63*0Sstevel@tonic-gate dsvcd_request_t lrq_request; /* generic request header */ 64*0Sstevel@tonic-gate dsvcd_locktype_t lrq_locktype; /* reader or writer */ 65*0Sstevel@tonic-gate uint8_t lrq_nonblock; /* cannot block if true */ 66*0Sstevel@tonic-gate uint8_t lrq_crosshost; /* do cross-host synch */ 67*0Sstevel@tonic-gate 68*0Sstevel@tonic-gate /* 69*0Sstevel@tonic-gate * The caller filling in this request must provide their current 70*0Sstevel@tonic-gate * container version and a name for their container which is 71*0Sstevel@tonic-gate * per-datastore unique (but need not be unique across datastores 72*0Sstevel@tonic-gate * or different versions of the same container.) 73*0Sstevel@tonic-gate * 74*0Sstevel@tonic-gate * The `lrq_loctoken' field must contain a token which "names" a 75*0Sstevel@tonic-gate * given location where the container exists -- note that a given 76*0Sstevel@tonic-gate * location must have exactly one name, though it's permissible for 77*0Sstevel@tonic-gate * more than one location to have the same name (in this case, 78*0Sstevel@tonic-gate * containers from these locations will be synchronized with one 79*0Sstevel@tonic-gate * another, which will hamper performance). Note that standard 80*0Sstevel@tonic-gate * pathnames do not meet the first constraint (e.g., /var/dhcp and 81*0Sstevel@tonic-gate * /var/../var/dhcp are two different names for the same location), 82*0Sstevel@tonic-gate * but pathnames processed by realpath(3C) do. 83*0Sstevel@tonic-gate * 84*0Sstevel@tonic-gate * If the caller wants cross-host synchronization, then 85*0Sstevel@tonic-gate * `lrq_crosshost' must be set and `lrq_loctoken' must be a 86*0Sstevel@tonic-gate * realpath(3C)'d directory that all hosts can access. 87*0Sstevel@tonic-gate */ 88*0Sstevel@tonic-gate int lrq_conver; 89*0Sstevel@tonic-gate char lrq_conname[64]; 90*0Sstevel@tonic-gate char lrq_loctoken[MAXPATHLEN]; 91*0Sstevel@tonic-gate } dsvcd_lock_request_t; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate typedef struct { 94*0Sstevel@tonic-gate dsvcd_request_t urq_request; /* generic request header */ 95*0Sstevel@tonic-gate } dsvcd_unlock_request_t; 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate #ifdef __cplusplus 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate #endif 100*0Sstevel@tonic-gate 101*0Sstevel@tonic-gate #endif /* DSVCD_DSVCLOCKD_H */ 102