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chpmon.c revision 1.1 
      1 /* $NetBSD: chpmon.c,v 1.1 2000/02/21 08:10:27 mjacob Exp $ */
      2 /* $FreeBSD: src/share/examples/ses/chpmon.c,v 1.1 2000/01/15 22:47:16 mjacob Exp $ */
      3 /*
      4  * Copyright (c) 2000 by Matthew Jacob
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions, and the following disclaimer,
     12  *    without modification, immediately at the beginning of the file.
     13  * 2. The name of the author may not be used to endorse or promote products
     14  *    derived from this software without specific prior written permission.
     15  *
     16  * Alternatively, this software may be distributed under the terms of the
     17  * the GNU Public License ("GPL").
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
     23  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  * Matthew Jacob
     32  * Feral Software
     33  * mjacob (at) feral.com
     34  */
     35 #include <unistd.h>
     36 #include <stdlib.h>
     37 #include <stdio.h>
     38 #include <fcntl.h>
     39 #include <errno.h>
     40 #include <sys/ioctl.h>
     41 #include "ses.h"
     42 
     43 /*
     44  * Continuously monitor all named SES devices
     45  * and turn all but INFO enclosure status
     46  * values into CRITICAL enclosure status.
     47  */
     48 #define	BADSTAT	\
     49 	(SES_ENCSTAT_UNRECOV|SES_ENCSTAT_CRITICAL|SES_ENCSTAT_NONCRITICAL)
     50 int
     51 main(a, v)
     52 	int a;
     53 	char **v;
     54 {
     55 	int fd, delay, dev;
     56 	ses_encstat stat, *carray;
     57 
     58 	if (a < 3) {
     59 		fprintf(stderr, "usage: %s polling-interval device "
     60 		    "[ device ... ]\n", *v);
     61 		return (1);
     62 	}
     63 	delay = atoi(v[1]);
     64 	carray = malloc(a);
     65 	if (carray == NULL) {
     66 		perror("malloc");
     67 		return (1);
     68 	}
     69 	bzero((void *)carray, a);
     70 
     71 	for (;;) {
     72 		for (dev = 2; dev < a; dev++) {
     73 			fd = open(v[dev], O_RDWR);
     74 			if (fd < 0) {
     75 				perror(v[dev]);
     76 				continue;
     77 			}
     78 			/*
     79 			 * First clear any enclosure status, in case it is
     80 			 * a latched status.
     81 			 */
     82 			stat = 0;
     83 			if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
     84 				fprintf(stderr, "%s: SESIOC_SETENCSTAT1: %s\n",
     85 				    v[dev], strerror(errno));
     86 				(void) close(fd);
     87 				continue;
     88 			}
     89 			/*
     90 			 * Now get the actual current enclosure status.
     91 			 */
     92 			if (ioctl(fd, SESIOC_GETENCSTAT, (caddr_t) &stat) < 0) {
     93 				fprintf(stderr, "%s: SESIOC_GETENCSTAT: %s\n",
     94 				    v[dev], strerror(errno));
     95 				(void) close(fd);
     96 				continue;
     97 			}
     98 
     99 			if ((stat & BADSTAT) == 0) {
    100 				if (carray[dev]) {
    101 					fprintf(stdout, "%s: Clearing CRITICAL "
    102 					    "condition\n", v[dev]);
    103 					carray[dev] = 0;
    104 				}
    105 				(void) close(fd);
    106 				continue;
    107 			}
    108 			carray[dev] = 1;
    109 			fprintf(stdout, "%s: Setting CRITICAL from:", v[dev]);
    110 			if (stat & SES_ENCSTAT_UNRECOV)
    111 				fprintf(stdout, " UNRECOVERABLE");
    112 
    113 			if (stat & SES_ENCSTAT_CRITICAL)
    114 				fprintf(stdout, " CRITICAL");
    115 
    116 			if (stat & SES_ENCSTAT_NONCRITICAL)
    117 				fprintf(stdout, " NONCRITICAL");
    118 			putchar('\n');
    119 			stat = SES_ENCSTAT_CRITICAL;
    120 			if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
    121 				fprintf(stderr, "%s: SESIOC_SETENCSTAT 2: %s\n",
    122 				    v[dev], strerror(errno));
    123 			}
    124 			(void) close(fd);
    125 		}
    126 		sleep(delay);
    127 	}
    128 	/* NOTREACHED */
    129 }
    130