17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
217c478bd9Sstevel@tonic-gate */
227c478bd9Sstevel@tonic-gate /*
23*e73e5762Skd93003 * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
287c478bd9Sstevel@tonic-gate
297c478bd9Sstevel@tonic-gate /*
307c478bd9Sstevel@tonic-gate * PICL plug-in that listens to sysevent and posts picl events
317c478bd9Sstevel@tonic-gate */
327c478bd9Sstevel@tonic-gate
337c478bd9Sstevel@tonic-gate #include <stdio.h>
347c478bd9Sstevel@tonic-gate #include <string.h>
357c478bd9Sstevel@tonic-gate #include <ctype.h>
367c478bd9Sstevel@tonic-gate #include <limits.h>
377c478bd9Sstevel@tonic-gate #include <stdlib.h>
387c478bd9Sstevel@tonic-gate #include <assert.h>
397c478bd9Sstevel@tonic-gate #include <alloca.h>
407c478bd9Sstevel@tonic-gate #include <unistd.h>
417c478bd9Sstevel@tonic-gate #include <stropts.h>
427c478bd9Sstevel@tonic-gate #include <syslog.h>
437c478bd9Sstevel@tonic-gate #include <libdevinfo.h>
447c478bd9Sstevel@tonic-gate #include <sys/time.h>
457c478bd9Sstevel@tonic-gate #include <fcntl.h>
467c478bd9Sstevel@tonic-gate #include <picl.h>
477c478bd9Sstevel@tonic-gate #include <picltree.h>
487c478bd9Sstevel@tonic-gate #include <sys/types.h>
497c478bd9Sstevel@tonic-gate #include <sys/sysinfo.h>
507c478bd9Sstevel@tonic-gate #include <dirent.h>
517c478bd9Sstevel@tonic-gate #include <libintl.h>
527c478bd9Sstevel@tonic-gate #include <sys/sunddi.h>
537c478bd9Sstevel@tonic-gate #include <sys/stat.h>
547c478bd9Sstevel@tonic-gate #include <libsysevent.h>
557c478bd9Sstevel@tonic-gate #include <libnvpair.h>
567c478bd9Sstevel@tonic-gate #include "piclevent.h"
577c478bd9Sstevel@tonic-gate
587c478bd9Sstevel@tonic-gate /*
597c478bd9Sstevel@tonic-gate * Plugin registration entry points
607c478bd9Sstevel@tonic-gate */
617c478bd9Sstevel@tonic-gate static void eventplugin_register(void);
627c478bd9Sstevel@tonic-gate static void eventplugin_init(void);
637c478bd9Sstevel@tonic-gate static void eventplugin_fini(void);
647c478bd9Sstevel@tonic-gate
657c478bd9Sstevel@tonic-gate #pragma init(eventplugin_register)
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate static picld_plugin_reg_t my_reg_info = {
687c478bd9Sstevel@tonic-gate PICLD_PLUGIN_VERSION_1,
697c478bd9Sstevel@tonic-gate PICLD_PLUGIN_CRITICAL,
707c478bd9Sstevel@tonic-gate "SUNW_piclevent plugin for sysevents",
717c478bd9Sstevel@tonic-gate eventplugin_init,
727c478bd9Sstevel@tonic-gate eventplugin_fini
737c478bd9Sstevel@tonic-gate };
747c478bd9Sstevel@tonic-gate
757c478bd9Sstevel@tonic-gate /*
767c478bd9Sstevel@tonic-gate * Log message texts
777c478bd9Sstevel@tonic-gate */
787c478bd9Sstevel@tonic-gate #define EVT_THR_FAILED gettext("Event thread create failed!\n")
797c478bd9Sstevel@tonic-gate #define EVT_OPEN_FAILED gettext("PICL SLM door create failed\n")
807c478bd9Sstevel@tonic-gate
817c478bd9Sstevel@tonic-gate static int door_id = -1;
827c478bd9Sstevel@tonic-gate #define SUNW_PICLEVENT_PLUGIN_DEBUG "SUNW_PICLEVENT_PLUGIN_DEBUG"
837c478bd9Sstevel@tonic-gate static int piclevent_debug = 0;
847c478bd9Sstevel@tonic-gate
857c478bd9Sstevel@tonic-gate
867c478bd9Sstevel@tonic-gate /*
877c478bd9Sstevel@tonic-gate * completion handler for the posted picl event
887c478bd9Sstevel@tonic-gate */
897c478bd9Sstevel@tonic-gate /*ARGSUSED*/
907c478bd9Sstevel@tonic-gate static void
piclevent_completion_handler(char * ename,void * earg,size_t size)917c478bd9Sstevel@tonic-gate piclevent_completion_handler(char *ename, void *earg, size_t size)
927c478bd9Sstevel@tonic-gate {
937c478bd9Sstevel@tonic-gate free(earg);
947c478bd9Sstevel@tonic-gate free(ename);
957c478bd9Sstevel@tonic-gate }
967c478bd9Sstevel@tonic-gate
977c478bd9Sstevel@tonic-gate /*
987c478bd9Sstevel@tonic-gate * This function posts the incoming piclevent
997c478bd9Sstevel@tonic-gate * It packs the nvlist and posts it to PICL
1007c478bd9Sstevel@tonic-gate */
1017c478bd9Sstevel@tonic-gate static void
parse_piclevent(nvlist_t * nvlp)1027c478bd9Sstevel@tonic-gate parse_piclevent(nvlist_t *nvlp)
1037c478bd9Sstevel@tonic-gate {
1047c478bd9Sstevel@tonic-gate char *enval;
1057c478bd9Sstevel@tonic-gate char *ename;
1067c478bd9Sstevel@tonic-gate size_t nvl_size;
1077c478bd9Sstevel@tonic-gate char *packed_nvl;
1087c478bd9Sstevel@tonic-gate int err;
1097c478bd9Sstevel@tonic-gate
1107c478bd9Sstevel@tonic-gate if (nvlist_lookup_string(nvlp, PICLEVENTARG_EVENT_NAME, &enval))
1117c478bd9Sstevel@tonic-gate return;
1127c478bd9Sstevel@tonic-gate
1137c478bd9Sstevel@tonic-gate packed_nvl = NULL;
1147c478bd9Sstevel@tonic-gate if (nvlist_pack(nvlp, &packed_nvl, &nvl_size, NV_ENCODE_NATIVE, NULL))
1157c478bd9Sstevel@tonic-gate return;
1167c478bd9Sstevel@tonic-gate
1177c478bd9Sstevel@tonic-gate ename = strdup(enval);
1187c478bd9Sstevel@tonic-gate if (ename == NULL) {
1197c478bd9Sstevel@tonic-gate free(packed_nvl);
1207c478bd9Sstevel@tonic-gate return;
1217c478bd9Sstevel@tonic-gate }
1227c478bd9Sstevel@tonic-gate
1237c478bd9Sstevel@tonic-gate if (piclevent_debug) {
1247c478bd9Sstevel@tonic-gate syslog(LOG_INFO, "piclevent: posting ename:%s packed_nvl:%p "
1257c478bd9Sstevel@tonic-gate "nvl_size:0x%x\n", ename, packed_nvl, nvl_size);
1267c478bd9Sstevel@tonic-gate }
1277c478bd9Sstevel@tonic-gate err = ptree_post_event(ename, packed_nvl, nvl_size,
1287c478bd9Sstevel@tonic-gate piclevent_completion_handler);
1297c478bd9Sstevel@tonic-gate
1307c478bd9Sstevel@tonic-gate if (err != PICL_SUCCESS) {
1317c478bd9Sstevel@tonic-gate if (piclevent_debug)
1327c478bd9Sstevel@tonic-gate syslog(LOG_INFO,
1337c478bd9Sstevel@tonic-gate "piclevent: posting ename:%s failed err:%d\n",
1347c478bd9Sstevel@tonic-gate ename, err);
1357c478bd9Sstevel@tonic-gate free(ename);
1367c478bd9Sstevel@tonic-gate free(packed_nvl);
1377c478bd9Sstevel@tonic-gate }
1387c478bd9Sstevel@tonic-gate }
1397c478bd9Sstevel@tonic-gate
1407c478bd9Sstevel@tonic-gate /*
1417c478bd9Sstevel@tonic-gate * This is the PICL SLM door handler. It parses the event tuple received
1427c478bd9Sstevel@tonic-gate * and posts an event to refresh the PICL tree.
1437c478bd9Sstevel@tonic-gate */
1447c478bd9Sstevel@tonic-gate /*ARGSUSED*/
1457c478bd9Sstevel@tonic-gate static void
event_handler(void * cookie,char * argp,size_t asize,door_desc_t * dp,uint_t n_desc)1467c478bd9Sstevel@tonic-gate event_handler(void *cookie, char *argp, size_t asize,
1477c478bd9Sstevel@tonic-gate door_desc_t *dp, uint_t n_desc)
1487c478bd9Sstevel@tonic-gate {
1497c478bd9Sstevel@tonic-gate door_cred_t cred;
1507c478bd9Sstevel@tonic-gate nvlist_t *nvlp;
1517c478bd9Sstevel@tonic-gate char *dtype;
1527c478bd9Sstevel@tonic-gate
1537c478bd9Sstevel@tonic-gate if (piclevent_debug)
1547c478bd9Sstevel@tonic-gate syslog(LOG_INFO,
1557c478bd9Sstevel@tonic-gate "piclevent: got SLM event cookie:%p evarg:%p size:0x%x\n",
1567c478bd9Sstevel@tonic-gate cookie, argp, asize);
1577c478bd9Sstevel@tonic-gate if ((door_id < 0) || (argp == NULL) || (door_cred(&cred) < 0) ||
1587c478bd9Sstevel@tonic-gate (cred.dc_euid != 0))
1597c478bd9Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0);
1607c478bd9Sstevel@tonic-gate
1617c478bd9Sstevel@tonic-gate if (nvlist_unpack(argp, asize, &nvlp, NULL))
1627c478bd9Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0);
1637c478bd9Sstevel@tonic-gate
1647c478bd9Sstevel@tonic-gate if (nvlist_lookup_string(nvlp, PICLEVENTARG_DATA_TYPE, &dtype)) {
1657c478bd9Sstevel@tonic-gate nvlist_free(nvlp);
1667c478bd9Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0);
1677c478bd9Sstevel@tonic-gate }
1687c478bd9Sstevel@tonic-gate
1697c478bd9Sstevel@tonic-gate if (strcmp(dtype, PICLEVENTARG_PICLEVENT_DATA) == 0)
1707c478bd9Sstevel@tonic-gate parse_piclevent(nvlp);
1717c478bd9Sstevel@tonic-gate /*
1727c478bd9Sstevel@tonic-gate * ignore other event data types
1737c478bd9Sstevel@tonic-gate */
1747c478bd9Sstevel@tonic-gate nvlist_free(nvlp);
1757c478bd9Sstevel@tonic-gate (void) door_return(argp, 0, NULL, 0);
1767c478bd9Sstevel@tonic-gate }
1777c478bd9Sstevel@tonic-gate
1787c478bd9Sstevel@tonic-gate /*
1797c478bd9Sstevel@tonic-gate * Create the slm to picl plugin door
1807c478bd9Sstevel@tonic-gate */
1817c478bd9Sstevel@tonic-gate static int
setup_door(void)1827c478bd9Sstevel@tonic-gate setup_door(void)
1837c478bd9Sstevel@tonic-gate {
1847c478bd9Sstevel@tonic-gate struct stat stbuf;
1857c478bd9Sstevel@tonic-gate
1867c478bd9Sstevel@tonic-gate /*
1877c478bd9Sstevel@tonic-gate * Create the door
1887c478bd9Sstevel@tonic-gate */
1897c478bd9Sstevel@tonic-gate door_id = door_create(event_handler, PICLEVENT_DOOR_COOKIE,
190*e73e5762Skd93003 DOOR_REFUSE_DESC | DOOR_NO_CANCEL);
1917c478bd9Sstevel@tonic-gate
1927c478bd9Sstevel@tonic-gate if (door_id < 0)
1937c478bd9Sstevel@tonic-gate return (-1);
1947c478bd9Sstevel@tonic-gate
1957c478bd9Sstevel@tonic-gate if (stat(PICLEVENT_DOOR, &stbuf) < 0) {
1967c478bd9Sstevel@tonic-gate int newfd;
1977c478bd9Sstevel@tonic-gate if ((newfd = creat(PICLEVENT_DOOR, 0444)) < 0) {
1987c478bd9Sstevel@tonic-gate (void) door_revoke(door_id);
1997c478bd9Sstevel@tonic-gate door_id = -1;
2007c478bd9Sstevel@tonic-gate return (-1);
2017c478bd9Sstevel@tonic-gate }
2027c478bd9Sstevel@tonic-gate (void) close(newfd);
2037c478bd9Sstevel@tonic-gate }
2047c478bd9Sstevel@tonic-gate
2057c478bd9Sstevel@tonic-gate if (fattach(door_id, PICLEVENT_DOOR) < 0) {
2067c478bd9Sstevel@tonic-gate if ((errno != EBUSY) || (fdetach(PICLEVENT_DOOR) < 0) ||
2077c478bd9Sstevel@tonic-gate (fattach(door_id, PICLEVENT_DOOR) < 0)) {
2087c478bd9Sstevel@tonic-gate (void) door_revoke(door_id);
2097c478bd9Sstevel@tonic-gate door_id = -1;
2107c478bd9Sstevel@tonic-gate return (-1);
2117c478bd9Sstevel@tonic-gate }
2127c478bd9Sstevel@tonic-gate }
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate return (0);
2157c478bd9Sstevel@tonic-gate }
2167c478bd9Sstevel@tonic-gate
2177c478bd9Sstevel@tonic-gate
2187c478bd9Sstevel@tonic-gate /*
2197c478bd9Sstevel@tonic-gate * This function is executed as part of .init when the plugin is
2207c478bd9Sstevel@tonic-gate * dlopen()ed
2217c478bd9Sstevel@tonic-gate */
2227c478bd9Sstevel@tonic-gate static void
eventplugin_register(void)2237c478bd9Sstevel@tonic-gate eventplugin_register(void)
2247c478bd9Sstevel@tonic-gate {
2257c478bd9Sstevel@tonic-gate if (getenv(SUNW_PICLEVENT_PLUGIN_DEBUG))
2267c478bd9Sstevel@tonic-gate piclevent_debug = 1;
2277c478bd9Sstevel@tonic-gate (void) picld_plugin_register(&my_reg_info);
2287c478bd9Sstevel@tonic-gate }
2297c478bd9Sstevel@tonic-gate
2307c478bd9Sstevel@tonic-gate /*
2317c478bd9Sstevel@tonic-gate * This function is the init entry point of the plugin.
2327c478bd9Sstevel@tonic-gate * It creates the slm to picl plugin door.
2337c478bd9Sstevel@tonic-gate */
2347c478bd9Sstevel@tonic-gate static void
eventplugin_init(void)2357c478bd9Sstevel@tonic-gate eventplugin_init(void)
2367c478bd9Sstevel@tonic-gate {
2377c478bd9Sstevel@tonic-gate if (setup_door() < 0) {
2387c478bd9Sstevel@tonic-gate syslog(LOG_ERR, EVT_OPEN_FAILED);
2397c478bd9Sstevel@tonic-gate }
2407c478bd9Sstevel@tonic-gate }
2417c478bd9Sstevel@tonic-gate
2427c478bd9Sstevel@tonic-gate /*
2437c478bd9Sstevel@tonic-gate * This function is the fini entry point of the plugin
2447c478bd9Sstevel@tonic-gate */
2457c478bd9Sstevel@tonic-gate static void
eventplugin_fini(void)2467c478bd9Sstevel@tonic-gate eventplugin_fini(void)
2477c478bd9Sstevel@tonic-gate {
2487c478bd9Sstevel@tonic-gate if (door_id >= 0) {
2497c478bd9Sstevel@tonic-gate (void) door_revoke(door_id);
2507c478bd9Sstevel@tonic-gate door_id = -1;
2517c478bd9Sstevel@tonic-gate }
2527c478bd9Sstevel@tonic-gate }
253