1 /*
2 * Copyright (c) 2000 by Matthew Jacob
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. The name of the author may not be used to endorse or promote products
12 * derived from this software without specific prior written permission.
13 *
14 * Alternatively, this software may be distributed under the terms of the
15 * the GNU Public License ("GPL").
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * Matthew Jacob
30 * Feral Software
31 * mjacob@feral.com
32 */
33 #include <unistd.h>
34 #include <stddef.h>
35 #include <stdint.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 <unistd.h>
43 #include <sys/ioctl.h>
44 #include <cam/scsi/scsi_all.h>
45 #include <cam/scsi/scsi_enc.h>
46
47 #define ALLSTAT (SES_ENCSTAT_UNRECOV | SES_ENCSTAT_CRITICAL | \
48 SES_ENCSTAT_NONCRITICAL | SES_ENCSTAT_INFO)
49
50 /*
51 * Monitor named SES devices and note (via syslog) any changes in status.
52 */
53
54 int
main(int a,char ** v)55 main(int a, char **v)
56 {
57 static const char *usage =
58 "usage: %s [ -c ] [ -d ] [ -t pollinterval ] device [ device ]\n";
59 int fd, polltime, dev, nodaemon, clear, c;
60 encioc_enc_status_t stat, nstat, *carray;
61
62 if (a < 2) {
63 fprintf(stderr, usage, *v);
64 return (1);
65 }
66
67 nodaemon = 0;
68 polltime = 30;
69 clear = 0;
70 while ((c = getopt(a, v, "cdt:")) != -1) {
71 switch (c) {
72 case 'c':
73 clear = 1;
74 break;
75 case 'd':
76 nodaemon = 1;
77 break;
78 case 't':
79 polltime = atoi(optarg);
80 break;
81 default:
82 fprintf(stderr, usage, *v);
83 return (1);
84 }
85 }
86
87 carray = malloc(a);
88 if (carray == NULL) {
89 perror("malloc");
90 return (1);
91 }
92 for (dev = optind; dev < a; dev++)
93 carray[dev] = (encioc_enc_status_t) -1;
94
95 /*
96 * Check to make sure we can open all devices
97 */
98 for (dev = optind; dev < a; dev++) {
99 fd = open(v[dev], O_RDWR);
100 if (fd < 0) {
101 perror(v[dev]);
102 return (1);
103 }
104 if (ioctl(fd, ENCIOC_INIT, NULL) < 0) {
105 fprintf(stderr, "%s: ENCIOC_INIT fails- %s\n",
106 v[dev], strerror(errno));
107 return (1);
108 }
109 (void) close(fd);
110 }
111 if (nodaemon == 0) {
112 if (daemon(0, 0) < 0) {
113 perror("daemon");
114 return (1);
115 }
116 openlog("sesd", LOG_CONS, LOG_USER);
117 } else {
118 openlog("sesd", LOG_CONS|LOG_PERROR, LOG_USER);
119 }
120
121 for (;;) {
122 for (dev = optind; dev < a; dev++) {
123 fd = open(v[dev], O_RDWR);
124 if (fd < 0) {
125 syslog(LOG_ERR, "%s: %m", v[dev]);
126 continue;
127 }
128
129 /*
130 * Get the actual current enclosure status.
131 */
132 if (ioctl(fd, ENCIOC_GETENCSTAT, (caddr_t) &stat) < 0) {
133 syslog(LOG_ERR,
134 "%s: ENCIOC_GETENCSTAT- %m", v[dev]);
135 (void) close(fd);
136 continue;
137 }
138 if (stat != 0 && clear) {
139 nstat = 0;
140 if (ioctl(fd, ENCIOC_SETENCSTAT,
141 (caddr_t) &nstat) < 0) {
142 syslog(LOG_ERR,
143 "%s: ENCIOC_SETENCSTAT- %m", v[dev]);
144 }
145 }
146 (void) close(fd);
147
148 if (stat == carray[dev])
149 continue;
150
151 carray[dev] = stat;
152 if ((stat & ALLSTAT) == 0) {
153 syslog(LOG_NOTICE,
154 "%s: Enclosure Status OK", v[dev]);
155 }
156 if (stat & SES_ENCSTAT_INFO) {
157 syslog(LOG_NOTICE,
158 "%s: Enclosure Has Information", v[dev]);
159 }
160 if (stat & SES_ENCSTAT_NONCRITICAL) {
161 syslog(LOG_WARNING,
162 "%s: Enclosure Non-Critical", v[dev]);
163 }
164 if (stat & SES_ENCSTAT_CRITICAL) {
165 syslog(LOG_CRIT,
166 "%s: Enclosure Critical", v[dev]);
167 }
168 if (stat & SES_ENCSTAT_UNRECOV) {
169 syslog(LOG_ALERT,
170 "%s: Enclosure Unrecoverable", v[dev]);
171 }
172 }
173 sleep(polltime);
174 }
175 /* NOTREACHED */
176 }
177