1 /* $FreeBSD: src/share/examples/ses/srcs/sesd.c,v 1.1 2000/02/29 05:44:18 mjacob Exp $ */
2 /* $DragonFly: src/share/examples/ses/srcs/sesd.c,v 1.2 2003/06/17 04:36:58 dillon 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 <string.h>
41 #include <syslog.h>
42 #include <sys/ioctl.h>
43 #include SESINC
44
45 #define ALLSTAT (SES_ENCSTAT_UNRECOV | SES_ENCSTAT_CRITICAL | \
46 SES_ENCSTAT_NONCRITICAL | SES_ENCSTAT_INFO)
47
48 /*
49 * Monitor named SES devices and note (via syslog) any changes in status.
50 */
51
52 int
main(a,v)53 main(a, v)
54 int a;
55 char **v;
56 {
57 static char *usage =
58 "usage: %s [ -d ] [ -t pollinterval ] device [ device ]\n";
59 int fd, polltime, dev, devbase, nodaemon, bpri;
60 ses_encstat stat, *carray;
61
62 if (a < 2) {
63 fprintf(stderr, usage, *v);
64 return (1);
65 }
66
67 devbase = 1;
68
69 if (strcmp(v[1], "-d") == 0) {
70 nodaemon = 1;
71 devbase++;
72 } else {
73 nodaemon = 0;
74 }
75
76 if (a > 2 && strcmp(v[2], "-t") == 0) {
77 devbase += 2;
78 polltime = atoi(v[3]);
79 } else {
80 polltime = 30;
81 }
82
83 carray = malloc(a);
84 if (carray == NULL) {
85 perror("malloc");
86 return (1);
87 }
88 for (dev = devbase; dev < a; dev++)
89 carray[dev] = (ses_encstat) -1;
90
91 /*
92 * Check to make sure we can open all devices
93 */
94 for (dev = devbase; dev < a; dev++) {
95 fd = open(v[dev], O_RDWR);
96 if (fd < 0) {
97 perror(v[dev]);
98 return (1);
99 }
100 if (ioctl(fd, SESIOC_INIT, NULL) < 0) {
101 fprintf(stderr, "%s: SESIOC_INIT fails- %s\n",
102 v[dev], strerror(errno));
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", LOG_CONS, LOG_USER);
113 } else {
114 openlog("sesd", LOG_CONS|LOG_PERROR, LOG_USER);
115 }
116
117 for (;;) {
118 for (dev = devbase; dev < a; dev++) {
119 char buf[128];
120 fd = open(v[dev], O_RDWR);
121 if (fd < 0) {
122 syslog(LOG_ERR, "%s: %m", v[dev]);
123 continue;
124 }
125
126 /*
127 * Get the actual current enclosure status.
128 */
129 if (ioctl(fd, SESIOC_GETENCSTAT, (caddr_t) &stat) < 0) {
130 syslog(LOG_ERR,
131 "%s: SESIOC_GETENCSTAT- %m", v[dev]);
132 (void) close(fd);
133 continue;
134 }
135 (void) close(fd);
136
137 if (stat == carray[dev])
138 continue;
139
140 carray[dev] = stat;
141 if ((stat & ALLSTAT) == 0) {
142 syslog(LOG_NOTICE,
143 "%s: Enclosure Status OK", v[dev]);
144 }
145 if (stat & SES_ENCSTAT_INFO) {
146 syslog(LOG_INFO,
147 "%s: Enclosure Status Has Information",
148 v[dev]);
149 }
150 if (stat & SES_ENCSTAT_NONCRITICAL) {
151 syslog(LOG_WARNING,
152 "%s: Enclosure Non-Critical", v[dev]);
153 }
154 if (stat & SES_ENCSTAT_CRITICAL) {
155 syslog(LOG_CRIT,
156 "%s: Enclosure Critical", v[dev]);
157 }
158 if (stat & SES_ENCSTAT_UNRECOV) {
159 syslog(LOG_ALERT,
160 "%s: Enclosure Unrecoverable", v[dev]);
161 }
162 }
163 sleep(polltime);
164 }
165 /* NOTREACHED */
166 }
167