1 /* $NetBSD: sesd.c,v 1.9 2018/01/23 21:06:26 sevan 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
49 /*
50 * Monitor named SES devices and note (via syslog) any changes in status.
51 */
52
53 int
main(int a,char * v[])54 main(int a, char *v[])
55 {
56 static const char usage[] =
57 "usage: %s [-d] [-t pollinterval] device [device ...]\n";
58 int c, fd, polltime, dev, nodaemon;
59 ses_encstat sestat, *carray;
60
61 if (a < 2) {
62 fprintf(stderr, usage, *v);
63 return (1);
64 }
65
66 nodaemon = 0;
67 polltime = 30;
68 while ((c = getopt(a, v, "dt:")) != -1) {
69 switch (c) {
70 case 'd':
71 nodaemon = 1;
72 break;
73 case 't':
74 polltime = atoi(optarg);
75 break;
76 default:
77 fprintf(stderr, usage, *v);
78 return (1);
79 }
80 }
81
82 carray = malloc(a);
83 if (carray == NULL) {
84 perror("malloc");
85 return (1);
86 }
87 for (dev = optind; dev < a; dev++)
88 carray[dev] = (ses_encstat) -1;
89
90 /*
91 * Check to make sure we can open all devices
92 */
93 for (dev = optind; dev < a; dev++) {
94 fd = open(v[dev], O_RDWR);
95 if (fd < 0) {
96 perror(v[dev]);
97 return (1);
98 }
99 if (ioctl(fd, SESIOC_INIT, NULL) < 0) {
100 fprintf(stderr, "%s: SESIOC_INIT fails- %s\n",
101 v[dev], strerror(errno));
102 (void) close(fd);
103 return (1);
104 }
105 (void) close(fd);
106 }
107 if (nodaemon == 0) {
108 if (daemon(0, 0) < 0) {
109 perror("daemon");
110 return (1);
111 }
112 openlog("sesd", 0, LOG_USER);
113 } else {
114 openlog("sesd", LOG_PERROR, LOG_USER);
115 }
116
117 for (;;) {
118 for (dev = optind; dev < a; dev++) {
119 fd = open(v[dev], O_RDWR);
120 if (fd < 0) {
121 syslog(LOG_ERR, "%s: %m", v[dev]);
122 continue;
123 }
124
125 /*
126 * Get the actual current enclosure status.
127 */
128 if (ioctl(fd, SESIOC_GETENCSTAT, (caddr_t) &sestat) < 0) {
129 syslog(LOG_ERR,
130 "%s: SESIOC_GETENCSTAT- %m", v[dev]);
131 (void) close(fd);
132 continue;
133 }
134 (void) close(fd);
135
136 if (sestat == carray[dev])
137 continue;
138
139 carray[dev] = sestat;
140 if ((sestat & ALLSTAT) == 0) {
141 syslog(LOG_NOTICE,
142 "%s: Enclosure Status OK", v[dev]);
143 }
144 if (sestat & SES_ENCSTAT_INFO) {
145 syslog(LOG_INFO,
146 "%s: Enclosure Status Has Information",
147 v[dev]);
148 }
149 if (sestat & SES_ENCSTAT_NONCRITICAL) {
150 syslog(LOG_WARNING,
151 "%s: Enclosure Non-Critical", v[dev]);
152 }
153 if (sestat & SES_ENCSTAT_CRITICAL) {
154 syslog(LOG_CRIT,
155 "%s: Enclosure Critical", v[dev]);
156 }
157 if (sestat & SES_ENCSTAT_UNRECOV) {
158 syslog(LOG_ALERT,
159 "%s: Enclosure Unrecoverable", v[dev]);
160 }
161 }
162 sleep(polltime);
163 }
164 /* NOTREACHED */
165 }
166