usr.sbin/sesd/srcs/sesd.c

   1 /* $NetBSD: sesd.c,v 1.4 2001/01/11 02:46:21 lukem Exp $ */
   2 /* $FreeBSD: $ */
   3 /* $OpenBSD: $ */
   4 /*
   5  * Copyright (c) 2000 by Matthew Jacob
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions, and the following disclaimer,
  13  *    without modification, immediately at the beginning of the file.
  14  * 2. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * Alternatively, this software may be distributed under the terms of the
  18  * the GNU Public License ("GPL").
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  24  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  * Matthew Jacob
  33  * Feral Software
  34  * mjacob@feral.com
  35  */
  36 #include <unistd.h>
  37 #include <stdlib.h>
  38 #include <stdio.h>
  39 #include <fcntl.h>
  40 #include <errno.h>
  41 #include <string.h>
  42 #include <syslog.h>
  43 #include <sys/ioctl.h>
  44 #include SESINC
  45
  46 #define ALLSTAT (SES_ENCSTAT_UNRECOV | SES_ENCSTAT_CRITICAL | \
  47         SES_ENCSTAT_NONCRITICAL | SES_ENCSTAT_INFO)
  48 int main __P((int, char **));
  49
  50 /*
  51  * Monitor named SES devices and note (via syslog) any changes in status.
  52  */
  53
  54 int
  55 main(a, v)
  56         int a;
  57         char **v;
  58 {
  59         static const char usage[] =
  60             "usage: %s [ -d ] [ -t pollinterval ] device [ device ]\n";
  61         int fd, polltime, dev, devbase, nodaemon;
  62         ses_encstat sestat, *carray;
  63
  64         if (a < 2) {
  65                 fprintf(stderr, usage, *v);
  66                 return (1);
  67         }
  68
  69         devbase = 1;
  70
  71         if (strcmp(v[1], "-d") == 0) {
  72                 nodaemon = 1;
  73                 devbase++;
  74         } else {
  75                 nodaemon = 0;
  76         }
  77
  78         if (a > 2 && strcmp(v[2], "-t") == 0) {
  79                 devbase += 2;
  80                 polltime = atoi(v[3]);
  81         } else {
  82                 polltime = 30;
  83         }
  84
  85         carray = malloc(a);
  86         if (carray == NULL) {
  87                 perror("malloc");
  88                 return (1);
  89         }
  90         for (dev = devbase; dev < a; dev++)
  91                 carray[dev] = (ses_encstat) -1;
  92
  93         /*
  94          * Check to make sure we can open all devices
  95          */
  96         for (dev = devbase; dev < a; dev++) {
  97                 fd = open(v[dev], O_RDWR);
  98                 if (fd < 0) {
  99                         perror(v[dev]);
 100                         return (1);
 101                 }
 102                 if (ioctl(fd, SESIOC_INIT, NULL) < 0) {
 103                         fprintf(stderr, "%s: SESIOC_INIT fails- %s\n",
 104                             v[dev], strerror(errno));
 105                         return (1);
 106                 }
 107                 (void) close(fd);
 108         }
 109         if (nodaemon == 0) {
 110                 if (daemon(0, 0) < 0) {
 111                         perror("daemon");
 112                         return (1);
 113                 }
 114                 openlog("sesd", 0, LOG_USER);
 115         } else {
 116                 openlog("sesd", LOG_PERROR, LOG_USER);
 117         }
 118
 119         for (;;) {
 120                 for (dev = devbase; dev < a; dev++) {
 121                         fd = open(v[dev], O_RDWR);
 122                         if (fd < 0) {
 123                                 syslog(LOG_ERR, "%s: %m", v[dev]);
 124                                 continue;
 125                         }
 126
 127                         /*
 128                          * Get the actual current enclosure status.
 129                          */
 130                         if (ioctl(fd, SESIOC_GETENCSTAT, (caddr_t) &sestat) < 0) {
 131                                 syslog(LOG_ERR,
 132                                     "%s: SESIOC_GETENCSTAT- %m", v[dev]);
 133                                 (void) close(fd);
 134                                 continue;
 135                         }
 136                         (void) close(fd);
 137
 138                         if (sestat == carray[dev])
 139                                 continue;
 140
 141                         carray[dev] = sestat;
 142                         if ((sestat & ALLSTAT) == 0) {
 143                                 syslog(LOG_NOTICE,
 144                                     "%s: Enclosure Status OK", v[dev]);
 145                         }
 146                         if (sestat & SES_ENCSTAT_INFO) {
 147                                 syslog(LOG_INFO,
 148                                     "%s: Enclosure Status Has Information",
 149                                     v[dev]);
 150                         }
 151                         if (sestat & SES_ENCSTAT_NONCRITICAL) {
 152                                 syslog(LOG_WARNING,
 153                                     "%s: Enclosure Non-Critical", v[dev]);
 154                         }
 155                         if (sestat & SES_ENCSTAT_CRITICAL) {
 156                                 syslog(LOG_CRIT,
 157                                     "%s: Enclosure Critical", v[dev]);
 158                         }
 159                         if (sestat & SES_ENCSTAT_UNRECOV) {
 160                                 syslog(LOG_ALERT,
 161                                     "%s: Enclosure Unrecoverable", v[dev]);
 162                         }
 163                 }
 164                 sleep(polltime);
 165         }
 166         /* NOTREACHED */
 167 }