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 2005 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * PICL plug-in that listens to sysevent and posts picl events 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include <stdio.h> 34*0Sstevel@tonic-gate #include <string.h> 35*0Sstevel@tonic-gate #include <ctype.h> 36*0Sstevel@tonic-gate #include <limits.h> 37*0Sstevel@tonic-gate #include <stdlib.h> 38*0Sstevel@tonic-gate #include <assert.h> 39*0Sstevel@tonic-gate #include <alloca.h> 40*0Sstevel@tonic-gate #include <unistd.h> 41*0Sstevel@tonic-gate #include <stropts.h> 42*0Sstevel@tonic-gate #include <syslog.h> 43*0Sstevel@tonic-gate #include <libdevinfo.h> 44*0Sstevel@tonic-gate #include <sys/time.h> 45*0Sstevel@tonic-gate #include <fcntl.h> 46*0Sstevel@tonic-gate #include <picl.h> 47*0Sstevel@tonic-gate #include <picltree.h> 48*0Sstevel@tonic-gate #include <sys/types.h> 49*0Sstevel@tonic-gate #include <sys/sysinfo.h> 50*0Sstevel@tonic-gate #include <dirent.h> 51*0Sstevel@tonic-gate #include <libintl.h> 52*0Sstevel@tonic-gate #include <sys/sunddi.h> 53*0Sstevel@tonic-gate #include <sys/stat.h> 54*0Sstevel@tonic-gate #include <libsysevent.h> 55*0Sstevel@tonic-gate #include <libnvpair.h> 56*0Sstevel@tonic-gate #include "piclevent.h" 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /* 59*0Sstevel@tonic-gate * Plugin registration entry points 60*0Sstevel@tonic-gate */ 61*0Sstevel@tonic-gate static void eventplugin_register(void); 62*0Sstevel@tonic-gate static void eventplugin_init(void); 63*0Sstevel@tonic-gate static void eventplugin_fini(void); 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate #pragma init(eventplugin_register) 66*0Sstevel@tonic-gate 67*0Sstevel@tonic-gate static picld_plugin_reg_t my_reg_info = { 68*0Sstevel@tonic-gate PICLD_PLUGIN_VERSION_1, 69*0Sstevel@tonic-gate PICLD_PLUGIN_CRITICAL, 70*0Sstevel@tonic-gate "SUNW_piclevent plugin for sysevents", 71*0Sstevel@tonic-gate eventplugin_init, 72*0Sstevel@tonic-gate eventplugin_fini 73*0Sstevel@tonic-gate }; 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate /* 76*0Sstevel@tonic-gate * Log message texts 77*0Sstevel@tonic-gate */ 78*0Sstevel@tonic-gate #define EVT_THR_FAILED gettext("Event thread create failed!\n") 79*0Sstevel@tonic-gate #define EVT_OPEN_FAILED gettext("PICL SLM door create failed\n") 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate static int door_id = -1; 82*0Sstevel@tonic-gate #define SUNW_PICLEVENT_PLUGIN_DEBUG "SUNW_PICLEVENT_PLUGIN_DEBUG" 83*0Sstevel@tonic-gate static int piclevent_debug = 0; 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate 86*0Sstevel@tonic-gate /* 87*0Sstevel@tonic-gate * completion handler for the posted picl event 88*0Sstevel@tonic-gate */ 89*0Sstevel@tonic-gate /*ARGSUSED*/ 90*0Sstevel@tonic-gate static void 91*0Sstevel@tonic-gate piclevent_completion_handler(char *ename, void *earg, size_t size) 92*0Sstevel@tonic-gate { 93*0Sstevel@tonic-gate free(earg); 94*0Sstevel@tonic-gate free(ename); 95*0Sstevel@tonic-gate } 96*0Sstevel@tonic-gate 97*0Sstevel@tonic-gate /* 98*0Sstevel@tonic-gate * This function posts the incoming piclevent 99*0Sstevel@tonic-gate * It packs the nvlist and posts it to PICL 100*0Sstevel@tonic-gate */ 101*0Sstevel@tonic-gate static void 102*0Sstevel@tonic-gate parse_piclevent(nvlist_t *nvlp) 103*0Sstevel@tonic-gate { 104*0Sstevel@tonic-gate char *enval; 105*0Sstevel@tonic-gate char *ename; 106*0Sstevel@tonic-gate size_t nvl_size; 107*0Sstevel@tonic-gate char *packed_nvl; 108*0Sstevel@tonic-gate int err; 109*0Sstevel@tonic-gate 110*0Sstevel@tonic-gate if (nvlist_lookup_string(nvlp, PICLEVENTARG_EVENT_NAME, &enval)) 111*0Sstevel@tonic-gate return; 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate packed_nvl = NULL; 114*0Sstevel@tonic-gate if (nvlist_pack(nvlp, &packed_nvl, &nvl_size, NV_ENCODE_NATIVE, NULL)) 115*0Sstevel@tonic-gate return; 116*0Sstevel@tonic-gate 117*0Sstevel@tonic-gate ename = strdup(enval); 118*0Sstevel@tonic-gate if (ename == NULL) { 119*0Sstevel@tonic-gate free(packed_nvl); 120*0Sstevel@tonic-gate return; 121*0Sstevel@tonic-gate } 122*0Sstevel@tonic-gate 123*0Sstevel@tonic-gate if (piclevent_debug) { 124*0Sstevel@tonic-gate syslog(LOG_INFO, "piclevent: posting ename:%s packed_nvl:%p " 125*0Sstevel@tonic-gate "nvl_size:0x%x\n", ename, packed_nvl, nvl_size); 126*0Sstevel@tonic-gate } 127*0Sstevel@tonic-gate err = ptree_post_event(ename, packed_nvl, nvl_size, 128*0Sstevel@tonic-gate piclevent_completion_handler); 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate if (err != PICL_SUCCESS) { 131*0Sstevel@tonic-gate if (piclevent_debug) 132*0Sstevel@tonic-gate syslog(LOG_INFO, 133*0Sstevel@tonic-gate "piclevent: posting ename:%s failed err:%d\n", 134*0Sstevel@tonic-gate ename, err); 135*0Sstevel@tonic-gate free(ename); 136*0Sstevel@tonic-gate free(packed_nvl); 137*0Sstevel@tonic-gate } 138*0Sstevel@tonic-gate } 139*0Sstevel@tonic-gate 140*0Sstevel@tonic-gate /* 141*0Sstevel@tonic-gate * This is the PICL SLM door handler. It parses the event tuple received 142*0Sstevel@tonic-gate * and posts an event to refresh the PICL tree. 143*0Sstevel@tonic-gate */ 144*0Sstevel@tonic-gate /*ARGSUSED*/ 145*0Sstevel@tonic-gate static void 146*0Sstevel@tonic-gate event_handler(void *cookie, char *argp, size_t asize, 147*0Sstevel@tonic-gate door_desc_t *dp, uint_t n_desc) 148*0Sstevel@tonic-gate { 149*0Sstevel@tonic-gate door_cred_t cred; 150*0Sstevel@tonic-gate nvlist_t *nvlp; 151*0Sstevel@tonic-gate char *dtype; 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate if (piclevent_debug) 154*0Sstevel@tonic-gate syslog(LOG_INFO, 155*0Sstevel@tonic-gate "piclevent: got SLM event cookie:%p evarg:%p size:0x%x\n", 156*0Sstevel@tonic-gate cookie, argp, asize); 157*0Sstevel@tonic-gate if ((door_id < 0) || (argp == NULL) || (door_cred(&cred) < 0) || 158*0Sstevel@tonic-gate (cred.dc_euid != 0)) 159*0Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0); 160*0Sstevel@tonic-gate 161*0Sstevel@tonic-gate if (nvlist_unpack(argp, asize, &nvlp, NULL)) 162*0Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0); 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate if (nvlist_lookup_string(nvlp, PICLEVENTARG_DATA_TYPE, &dtype)) { 165*0Sstevel@tonic-gate nvlist_free(nvlp); 166*0Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0); 167*0Sstevel@tonic-gate } 168*0Sstevel@tonic-gate 169*0Sstevel@tonic-gate if (strcmp(dtype, PICLEVENTARG_PICLEVENT_DATA) == 0) 170*0Sstevel@tonic-gate parse_piclevent(nvlp); 171*0Sstevel@tonic-gate /* 172*0Sstevel@tonic-gate * ignore other event data types 173*0Sstevel@tonic-gate */ 174*0Sstevel@tonic-gate nvlist_free(nvlp); 175*0Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0); 176*0Sstevel@tonic-gate } 177*0Sstevel@tonic-gate 178*0Sstevel@tonic-gate /* 179*0Sstevel@tonic-gate * Create the slm to picl plugin door 180*0Sstevel@tonic-gate */ 181*0Sstevel@tonic-gate static int 182*0Sstevel@tonic-gate setup_door(void) 183*0Sstevel@tonic-gate { 184*0Sstevel@tonic-gate struct stat stbuf; 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate /* 187*0Sstevel@tonic-gate * Create the door 188*0Sstevel@tonic-gate */ 189*0Sstevel@tonic-gate door_id = door_create(event_handler, PICLEVENT_DOOR_COOKIE, 190*0Sstevel@tonic-gate DOOR_UNREF | DOOR_REFUSE_DESC | DOOR_NO_CANCEL); 191*0Sstevel@tonic-gate 192*0Sstevel@tonic-gate if (door_id < 0) 193*0Sstevel@tonic-gate return (-1); 194*0Sstevel@tonic-gate 195*0Sstevel@tonic-gate if (stat(PICLEVENT_DOOR, &stbuf) < 0) { 196*0Sstevel@tonic-gate int newfd; 197*0Sstevel@tonic-gate if ((newfd = creat(PICLEVENT_DOOR, 0444)) < 0) { 198*0Sstevel@tonic-gate (void) door_revoke(door_id); 199*0Sstevel@tonic-gate door_id = -1; 200*0Sstevel@tonic-gate return (-1); 201*0Sstevel@tonic-gate } 202*0Sstevel@tonic-gate (void) close(newfd); 203*0Sstevel@tonic-gate } 204*0Sstevel@tonic-gate 205*0Sstevel@tonic-gate if (fattach(door_id, PICLEVENT_DOOR) < 0) { 206*0Sstevel@tonic-gate if ((errno != EBUSY) || (fdetach(PICLEVENT_DOOR) < 0) || 207*0Sstevel@tonic-gate (fattach(door_id, PICLEVENT_DOOR) < 0)) { 208*0Sstevel@tonic-gate (void) door_revoke(door_id); 209*0Sstevel@tonic-gate door_id = -1; 210*0Sstevel@tonic-gate return (-1); 211*0Sstevel@tonic-gate } 212*0Sstevel@tonic-gate } 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate return (0); 215*0Sstevel@tonic-gate } 216*0Sstevel@tonic-gate 217*0Sstevel@tonic-gate 218*0Sstevel@tonic-gate /* 219*0Sstevel@tonic-gate * This function is executed as part of .init when the plugin is 220*0Sstevel@tonic-gate * dlopen()ed 221*0Sstevel@tonic-gate */ 222*0Sstevel@tonic-gate static void 223*0Sstevel@tonic-gate eventplugin_register(void) 224*0Sstevel@tonic-gate { 225*0Sstevel@tonic-gate if (getenv(SUNW_PICLEVENT_PLUGIN_DEBUG)) 226*0Sstevel@tonic-gate piclevent_debug = 1; 227*0Sstevel@tonic-gate (void) picld_plugin_register(&my_reg_info); 228*0Sstevel@tonic-gate } 229*0Sstevel@tonic-gate 230*0Sstevel@tonic-gate /* 231*0Sstevel@tonic-gate * This function is the init entry point of the plugin. 232*0Sstevel@tonic-gate * It creates the slm to picl plugin door. 233*0Sstevel@tonic-gate */ 234*0Sstevel@tonic-gate static void 235*0Sstevel@tonic-gate eventplugin_init(void) 236*0Sstevel@tonic-gate { 237*0Sstevel@tonic-gate if (setup_door() < 0) { 238*0Sstevel@tonic-gate syslog(LOG_ERR, EVT_OPEN_FAILED); 239*0Sstevel@tonic-gate } 240*0Sstevel@tonic-gate } 241*0Sstevel@tonic-gate 242*0Sstevel@tonic-gate /* 243*0Sstevel@tonic-gate * This function is the fini entry point of the plugin 244*0Sstevel@tonic-gate */ 245*0Sstevel@tonic-gate static void 246*0Sstevel@tonic-gate eventplugin_fini(void) 247*0Sstevel@tonic-gate { 248*0Sstevel@tonic-gate if (door_id >= 0) { 249*0Sstevel@tonic-gate (void) door_revoke(door_id); 250*0Sstevel@tonic-gate door_id = -1; 251*0Sstevel@tonic-gate } 252*0Sstevel@tonic-gate } 253