/share/examples/ses/srcs/sesd.c
https://bitbucket.org/freebsd/freebsd-head/ · C · 165 lines · 109 code · 13 blank · 43 comment · 30 complexity · 170ad6b8aa60404490b6ff0558efa17b MD5 · raw file
- /* $FreeBSD$ */
- /*
- * Copyright (c) 2000 by Matthew Jacob
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification, immediately at the beginning of the file.
- * 2. The name of the author may not be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * the GNU Public License ("GPL").
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * Matthew Jacob
- * Feral Software
- * mjacob@feral.com
- */
- #include <unistd.h>
- #include <stddef.h>
- #include <stdint.h>
- #include <stdlib.h>
- #include <stdio.h>
- #include <fcntl.h>
- #include <errno.h>
- #include <string.h>
- #include <syslog.h>
- #include <sys/ioctl.h>
- #include <cam/scsi/scsi_all.h>
- #include <cam/scsi/scsi_enc.h>
- #define ALLSTAT (SES_ENCSTAT_UNRECOV | SES_ENCSTAT_CRITICAL | \
- SES_ENCSTAT_NONCRITICAL | SES_ENCSTAT_INFO)
- /*
- * Monitor named SES devices and note (via syslog) any changes in status.
- */
- int
- main(int a, char **v)
- {
- static const char *usage =
- "usage: %s [ -d ] [ -t pollinterval ] device [ device ]\n";
- int fd, polltime, dev, devbase, nodaemon;
- encioc_enc_status_t stat, *carray;
- if (a < 2) {
- fprintf(stderr, usage, *v);
- return (1);
- }
- devbase = 1;
- if (strcmp(v[1], "-d") == 0) {
- nodaemon = 1;
- devbase++;
- } else {
- nodaemon = 0;
- }
- if (a > 2 && strcmp(v[2], "-t") == 0) {
- devbase += 2;
- polltime = atoi(v[3]);
- } else {
- polltime = 30;
- }
- carray = malloc(a);
- if (carray == NULL) {
- perror("malloc");
- return (1);
- }
- for (dev = devbase; dev < a; dev++)
- carray[dev] = (encioc_enc_status_t) -1;
- /*
- * Check to make sure we can open all devices
- */
- for (dev = devbase; dev < a; dev++) {
- fd = open(v[dev], O_RDWR);
- if (fd < 0) {
- perror(v[dev]);
- return (1);
- }
- if (ioctl(fd, ENCIOC_INIT, NULL) < 0) {
- fprintf(stderr, "%s: ENCIOC_INIT fails- %s\n",
- v[dev], strerror(errno));
- return (1);
- }
- (void) close(fd);
- }
- if (nodaemon == 0) {
- if (daemon(0, 0) < 0) {
- perror("daemon");
- return (1);
- }
- openlog("sesd", LOG_CONS, LOG_USER);
- } else {
- openlog("sesd", LOG_CONS|LOG_PERROR, LOG_USER);
- }
- for (;;) {
- for (dev = devbase; dev < a; dev++) {
- fd = open(v[dev], O_RDWR);
- if (fd < 0) {
- syslog(LOG_ERR, "%s: %m", v[dev]);
- continue;
- }
- /*
- * Get the actual current enclosure status.
- */
- if (ioctl(fd, ENCIOC_GETENCSTAT, (caddr_t) &stat) < 0) {
- syslog(LOG_ERR,
- "%s: ENCIOC_GETENCSTAT- %m", v[dev]);
- (void) close(fd);
- continue;
- }
- (void) close(fd);
- if (stat == carray[dev])
- continue;
- carray[dev] = stat;
- if ((stat & ALLSTAT) == 0) {
- syslog(LOG_NOTICE,
- "%s: Enclosure Status OK", v[dev]);
- }
- if (stat & SES_ENCSTAT_INFO) {
- syslog(LOG_INFO,
- "%s: Enclosure Status Has Information",
- v[dev]);
- }
- if (stat & SES_ENCSTAT_NONCRITICAL) {
- syslog(LOG_WARNING,
- "%s: Enclosure Non-Critical", v[dev]);
- }
- if (stat & SES_ENCSTAT_CRITICAL) {
- syslog(LOG_CRIT,
- "%s: Enclosure Critical", v[dev]);
- }
- if (stat & SES_ENCSTAT_UNRECOV) {
- syslog(LOG_ALERT,
- "%s: Enclosure Unrecoverable", v[dev]);
- }
- }
- sleep(polltime);
- }
- /* NOTREACHED */
- }