1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * CDDL HEADER START 3*7c478bd9Sstevel@tonic-gate * 4*7c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*7c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*7c478bd9Sstevel@tonic-gate * with the License. 8*7c478bd9Sstevel@tonic-gate * 9*7c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*7c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*7c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 12*7c478bd9Sstevel@tonic-gate * and limitations under the License. 13*7c478bd9Sstevel@tonic-gate * 14*7c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*7c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*7c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*7c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*7c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*7c478bd9Sstevel@tonic-gate * 20*7c478bd9Sstevel@tonic-gate * CDDL HEADER END 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate /* 23*7c478bd9Sstevel@tonic-gate * Copyright 2001, 2003 Sun Microsystems, Inc. All rights reserved. 24*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 25*7c478bd9Sstevel@tonic-gate */ 26*7c478bd9Sstevel@tonic-gate 27*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate /* 30*7c478bd9Sstevel@tonic-gate * RCM module for managing the OS Quiesce event (SUNW_OS) in a 31*7c478bd9Sstevel@tonic-gate * clustered environment. 32*7c478bd9Sstevel@tonic-gate */ 33*7c478bd9Sstevel@tonic-gate 34*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 35*7c478bd9Sstevel@tonic-gate #include <unistd.h> 36*7c478bd9Sstevel@tonic-gate #include <fcntl.h> 37*7c478bd9Sstevel@tonic-gate #include <string.h> 38*7c478bd9Sstevel@tonic-gate #include <thread.h> 39*7c478bd9Sstevel@tonic-gate #include <synch.h> 40*7c478bd9Sstevel@tonic-gate #include <assert.h> 41*7c478bd9Sstevel@tonic-gate #include <errno.h> 42*7c478bd9Sstevel@tonic-gate #include <libintl.h> 43*7c478bd9Sstevel@tonic-gate #include <sys/param.h> 44*7c478bd9Sstevel@tonic-gate #include <sys/wait.h> 45*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 46*7c478bd9Sstevel@tonic-gate #include <sys/stat.h> 47*7c478bd9Sstevel@tonic-gate #include <sys/cladm.h> 48*7c478bd9Sstevel@tonic-gate #include "rcm_module.h" 49*7c478bd9Sstevel@tonic-gate 50*7c478bd9Sstevel@tonic-gate #define SUNW_OS "SUNW_OS" 51*7c478bd9Sstevel@tonic-gate #define OS_USAGE gettext("Sun Cluster") 52*7c478bd9Sstevel@tonic-gate #define OS_SUSPEND_ERR gettext("OS cannot be quiesced on clustered nodes") 53*7c478bd9Sstevel@tonic-gate #define OS_OFFLINE_ERR gettext("Invalid operation: OS cannot be offlined") 54*7c478bd9Sstevel@tonic-gate #define OS_REMOVE_ERR gettext("Invalid operation: OS cannot be removed") 55*7c478bd9Sstevel@tonic-gate 56*7c478bd9Sstevel@tonic-gate static int cluster_register(rcm_handle_t *); 57*7c478bd9Sstevel@tonic-gate static int cluster_unregister(rcm_handle_t *); 58*7c478bd9Sstevel@tonic-gate static int cluster_getinfo(rcm_handle_t *, char *, id_t, uint_t, 59*7c478bd9Sstevel@tonic-gate char **, char **, nvlist_t *, rcm_info_t **); 60*7c478bd9Sstevel@tonic-gate static int cluster_suspend(rcm_handle_t *, char *, id_t, 61*7c478bd9Sstevel@tonic-gate timespec_t *, uint_t, char **, rcm_info_t **); 62*7c478bd9Sstevel@tonic-gate static int cluster_resume(rcm_handle_t *, char *, id_t, uint_t, 63*7c478bd9Sstevel@tonic-gate char **, rcm_info_t **); 64*7c478bd9Sstevel@tonic-gate static int cluster_offline(rcm_handle_t *, char *, id_t, uint_t, 65*7c478bd9Sstevel@tonic-gate char **, rcm_info_t **); 66*7c478bd9Sstevel@tonic-gate static int cluster_online(rcm_handle_t *, char *, id_t, uint_t, 67*7c478bd9Sstevel@tonic-gate char **, rcm_info_t **); 68*7c478bd9Sstevel@tonic-gate static int cluster_remove(rcm_handle_t *, char *, id_t, uint_t, 69*7c478bd9Sstevel@tonic-gate char **, rcm_info_t **); 70*7c478bd9Sstevel@tonic-gate 71*7c478bd9Sstevel@tonic-gate static int cluster_SUNW_os_registered = 0; 72*7c478bd9Sstevel@tonic-gate 73*7c478bd9Sstevel@tonic-gate static struct rcm_mod_ops cluster_ops = 74*7c478bd9Sstevel@tonic-gate { 75*7c478bd9Sstevel@tonic-gate RCM_MOD_OPS_VERSION, 76*7c478bd9Sstevel@tonic-gate cluster_register, 77*7c478bd9Sstevel@tonic-gate cluster_unregister, 78*7c478bd9Sstevel@tonic-gate cluster_getinfo, 79*7c478bd9Sstevel@tonic-gate cluster_suspend, 80*7c478bd9Sstevel@tonic-gate cluster_resume, 81*7c478bd9Sstevel@tonic-gate cluster_offline, 82*7c478bd9Sstevel@tonic-gate cluster_online, 83*7c478bd9Sstevel@tonic-gate cluster_remove, 84*7c478bd9Sstevel@tonic-gate NULL, 85*7c478bd9Sstevel@tonic-gate NULL, 86*7c478bd9Sstevel@tonic-gate NULL 87*7c478bd9Sstevel@tonic-gate }; 88*7c478bd9Sstevel@tonic-gate 89*7c478bd9Sstevel@tonic-gate struct rcm_mod_ops * 90*7c478bd9Sstevel@tonic-gate rcm_mod_init() 91*7c478bd9Sstevel@tonic-gate { 92*7c478bd9Sstevel@tonic-gate return (&cluster_ops); 93*7c478bd9Sstevel@tonic-gate } 94*7c478bd9Sstevel@tonic-gate 95*7c478bd9Sstevel@tonic-gate const char * 96*7c478bd9Sstevel@tonic-gate rcm_mod_info() 97*7c478bd9Sstevel@tonic-gate { 98*7c478bd9Sstevel@tonic-gate return (gettext("RCM Cluster module %I%")); 99*7c478bd9Sstevel@tonic-gate } 100*7c478bd9Sstevel@tonic-gate 101*7c478bd9Sstevel@tonic-gate int 102*7c478bd9Sstevel@tonic-gate rcm_mod_fini() 103*7c478bd9Sstevel@tonic-gate { 104*7c478bd9Sstevel@tonic-gate return (RCM_SUCCESS); 105*7c478bd9Sstevel@tonic-gate } 106*7c478bd9Sstevel@tonic-gate 107*7c478bd9Sstevel@tonic-gate static int 108*7c478bd9Sstevel@tonic-gate cluster_register(rcm_handle_t *hdl) 109*7c478bd9Sstevel@tonic-gate { 110*7c478bd9Sstevel@tonic-gate int bootflags; 111*7c478bd9Sstevel@tonic-gate 112*7c478bd9Sstevel@tonic-gate if (cluster_SUNW_os_registered) 113*7c478bd9Sstevel@tonic-gate return (RCM_SUCCESS); 114*7c478bd9Sstevel@tonic-gate 115*7c478bd9Sstevel@tonic-gate if (_cladm(CL_INITIALIZE, CL_GET_BOOTFLAG, &bootflags) != 0) { 116*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_ERROR, 117*7c478bd9Sstevel@tonic-gate gettext("unable to check cluster status\n")); 118*7c478bd9Sstevel@tonic-gate return (RCM_FAILURE); 119*7c478bd9Sstevel@tonic-gate } 120*7c478bd9Sstevel@tonic-gate 121*7c478bd9Sstevel@tonic-gate /* attempt to determine if we are in cluster mode */ 122*7c478bd9Sstevel@tonic-gate 123*7c478bd9Sstevel@tonic-gate if (bootflags & CLUSTER_BOOTED) { 124*7c478bd9Sstevel@tonic-gate if (rcm_register_interest(hdl, SUNW_OS, 0, NULL) != 125*7c478bd9Sstevel@tonic-gate RCM_SUCCESS) { 126*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_ERROR, 127*7c478bd9Sstevel@tonic-gate gettext("failed to register\n")); 128*7c478bd9Sstevel@tonic-gate return (RCM_FAILURE); 129*7c478bd9Sstevel@tonic-gate } else { 130*7c478bd9Sstevel@tonic-gate cluster_SUNW_os_registered = 1; 131*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_DEBUG, "registered " SUNW_OS 132*7c478bd9Sstevel@tonic-gate "\n"); 133*7c478bd9Sstevel@tonic-gate } 134*7c478bd9Sstevel@tonic-gate } 135*7c478bd9Sstevel@tonic-gate 136*7c478bd9Sstevel@tonic-gate return (RCM_SUCCESS); 137*7c478bd9Sstevel@tonic-gate } 138*7c478bd9Sstevel@tonic-gate 139*7c478bd9Sstevel@tonic-gate static int 140*7c478bd9Sstevel@tonic-gate cluster_unregister(rcm_handle_t *hdl) 141*7c478bd9Sstevel@tonic-gate { 142*7c478bd9Sstevel@tonic-gate 143*7c478bd9Sstevel@tonic-gate if (cluster_SUNW_os_registered) { 144*7c478bd9Sstevel@tonic-gate if (rcm_unregister_interest(hdl, SUNW_OS, 0) != 145*7c478bd9Sstevel@tonic-gate RCM_SUCCESS) { 146*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_ERROR, 147*7c478bd9Sstevel@tonic-gate gettext("failed to unregister")); 148*7c478bd9Sstevel@tonic-gate } 149*7c478bd9Sstevel@tonic-gate cluster_SUNW_os_registered = 0; 150*7c478bd9Sstevel@tonic-gate } 151*7c478bd9Sstevel@tonic-gate return (RCM_SUCCESS); 152*7c478bd9Sstevel@tonic-gate } 153*7c478bd9Sstevel@tonic-gate 154*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 155*7c478bd9Sstevel@tonic-gate static int 156*7c478bd9Sstevel@tonic-gate cluster_getinfo(rcm_handle_t *hdl, char *rsrcname, id_t id, uint_t flags, 157*7c478bd9Sstevel@tonic-gate char **infostr, char **errstr, nvlist_t *props, rcm_info_t **dependent) 158*7c478bd9Sstevel@tonic-gate { 159*7c478bd9Sstevel@tonic-gate 160*7c478bd9Sstevel@tonic-gate assert(rsrcname != NULL && infostr != NULL); 161*7c478bd9Sstevel@tonic-gate 162*7c478bd9Sstevel@tonic-gate if ((*infostr = strdup(OS_USAGE)) == NULL) 163*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_ERROR, gettext("strdup failure\n")); 164*7c478bd9Sstevel@tonic-gate 165*7c478bd9Sstevel@tonic-gate return (RCM_SUCCESS); 166*7c478bd9Sstevel@tonic-gate } 167*7c478bd9Sstevel@tonic-gate 168*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 169*7c478bd9Sstevel@tonic-gate static int 170*7c478bd9Sstevel@tonic-gate cluster_suspend(rcm_handle_t *hdl, char *rsrcname, id_t id, 171*7c478bd9Sstevel@tonic-gate timespec_t *interval, uint_t flags, char **errstr, 172*7c478bd9Sstevel@tonic-gate rcm_info_t **dependent) 173*7c478bd9Sstevel@tonic-gate { 174*7c478bd9Sstevel@tonic-gate if ((*errstr = strdup(OS_SUSPEND_ERR)) == NULL) 175*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_ERROR, gettext("strdup failure\n")); 176*7c478bd9Sstevel@tonic-gate 177*7c478bd9Sstevel@tonic-gate return (RCM_FAILURE); 178*7c478bd9Sstevel@tonic-gate } 179*7c478bd9Sstevel@tonic-gate 180*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 181*7c478bd9Sstevel@tonic-gate static int 182*7c478bd9Sstevel@tonic-gate cluster_resume(rcm_handle_t *hdl, char *rsrcname, id_t id, uint_t flags, 183*7c478bd9Sstevel@tonic-gate char **errstr, rcm_info_t **dependent) 184*7c478bd9Sstevel@tonic-gate { 185*7c478bd9Sstevel@tonic-gate return (RCM_SUCCESS); 186*7c478bd9Sstevel@tonic-gate } 187*7c478bd9Sstevel@tonic-gate 188*7c478bd9Sstevel@tonic-gate /* 189*7c478bd9Sstevel@tonic-gate * By default, reject offline. If offline request is 190*7c478bd9Sstevel@tonic-gate * forced, attempt to relocate the cluster device. 191*7c478bd9Sstevel@tonic-gate */ 192*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 193*7c478bd9Sstevel@tonic-gate static int 194*7c478bd9Sstevel@tonic-gate cluster_offline(rcm_handle_t *hdl, char *rsrcname, id_t id, uint_t flags, 195*7c478bd9Sstevel@tonic-gate char **errstr, rcm_info_t **dependent) 196*7c478bd9Sstevel@tonic-gate { 197*7c478bd9Sstevel@tonic-gate if ((*errstr = strdup(OS_OFFLINE_ERR)) == NULL) 198*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_ERROR, gettext("strdup failure\n")); 199*7c478bd9Sstevel@tonic-gate 200*7c478bd9Sstevel@tonic-gate return (RCM_FAILURE); 201*7c478bd9Sstevel@tonic-gate } 202*7c478bd9Sstevel@tonic-gate 203*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 204*7c478bd9Sstevel@tonic-gate static int 205*7c478bd9Sstevel@tonic-gate cluster_online(rcm_handle_t *hdl, char *rsrcname, id_t id, uint_t flags, 206*7c478bd9Sstevel@tonic-gate char **errstr, rcm_info_t **dependent) 207*7c478bd9Sstevel@tonic-gate { 208*7c478bd9Sstevel@tonic-gate return (RCM_SUCCESS); 209*7c478bd9Sstevel@tonic-gate } 210*7c478bd9Sstevel@tonic-gate 211*7c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 212*7c478bd9Sstevel@tonic-gate static int 213*7c478bd9Sstevel@tonic-gate cluster_remove(rcm_handle_t *hdl, char *rsrcname, id_t id, uint_t flags, 214*7c478bd9Sstevel@tonic-gate char **errstr, rcm_info_t **dependent) 215*7c478bd9Sstevel@tonic-gate { 216*7c478bd9Sstevel@tonic-gate if ((*errstr = strdup(OS_REMOVE_ERR)) == NULL) 217*7c478bd9Sstevel@tonic-gate rcm_log_message(RCM_ERROR, gettext("strdup failure\n")); 218*7c478bd9Sstevel@tonic-gate 219*7c478bd9Sstevel@tonic-gate return (RCM_FAILURE); 220*7c478bd9Sstevel@tonic-gate } 221