usr.sbin/sesd/srcs/chpmon.c

   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@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
  51 int main __P((int, char **));
  52
  53 int
  54 main(a, v)
  55         int a;
  56         char **v;
  57 {
  58         int fd, delay, dev;
  59         ses_encstat stat, *carray;
  60
  61         if (a < 3) {
  62                 fprintf(stderr, "usage: %s polling-interval device "
  63                     "[ device ... ]\n", *v);
  64                 return (1);
  65         }
  66         delay = atoi(v[1]);
  67         carray = malloc(a);
  68         if (carray == NULL) {
  69                 perror("malloc");
  70                 return (1);
  71         }
  72         bzero((void *)carray, a);
  73
  74         for (;;) {
  75                 for (dev = 2; dev < a; dev++) {
  76                         fd = open(v[dev], O_RDWR);
  77                         if (fd < 0) {
  78                                 perror(v[dev]);
  79                                 continue;
  80                         }
  81                         /*
  82                          * First clear any enclosure status, in case it is
  83                          * a latched status.
  84                          */
  85                         stat = 0;
  86                         if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
  87                                 fprintf(stderr, "%s: SESIOC_SETENCSTAT1: %s\n",
  88                                     v[dev], strerror(errno));
  89                                 (void) close(fd);
  90                                 continue;
  91                         }
  92                         /*
  93                          * Now get the actual current enclosure status.
  94                          */
  95                         if (ioctl(fd, SESIOC_GETENCSTAT, (caddr_t) &stat) < 0) {
  96                                 fprintf(stderr, "%s: SESIOC_GETENCSTAT: %s\n",
  97                                     v[dev], strerror(errno));
  98                                 (void) close(fd);
  99                                 continue;
 100                         }
 101
 102                         if ((stat & BADSTAT) == 0) {
 103                                 if (carray[dev]) {
 104                                         fprintf(stdout, "%s: Clearing CRITICAL "
 105                                             "condition\n", v[dev]);
 106                                         carray[dev] = 0;
 107                                 }
 108                                 (void) close(fd);
 109                                 continue;
 110                         }
 111                         carray[dev] = 1;
 112                         fprintf(stdout, "%s: Setting CRITICAL from:", v[dev]);
 113                         if (stat & SES_ENCSTAT_UNRECOV)
 114                                 fprintf(stdout, " UNRECOVERABLE");
 115
 116                         if (stat & SES_ENCSTAT_CRITICAL)
 117                                 fprintf(stdout, " CRITICAL");
 118
 119                         if (stat & SES_ENCSTAT_NONCRITICAL)
 120                                 fprintf(stdout, " NONCRITICAL");
 121                         putchar('\n');
 122                         stat = SES_ENCSTAT_CRITICAL;
 123                         if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
 124                                 fprintf(stderr, "%s: SESIOC_SETENCSTAT 2: %s\n",
 125                                     v[dev], strerror(errno));
 126                         }
 127                         (void) close(fd);
 128                 }
 129                 sleep(delay);
 130         }
 131         /* NOTREACHED */
 132 }