xref: /freebsd/share/examples/ses/srcs/chpmon.c (revision 1e413cf93298b5b97441a21d9a50fdcd0ee9945e)
1 /* $FreeBSD$ */
2 /*
3  * Copyright (c) 2000 by Matthew Jacob
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions, and the following disclaimer,
11  *    without modification, immediately at the beginning of the file.
12  * 2. The name of the author may not be used to endorse or promote products
13  *    derived from this software without specific prior written permission.
14  *
15  * Alternatively, this software may be distributed under the terms of the
16  * the GNU Public License ("GPL").
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
22  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * Matthew Jacob
31  * Feral Software
32  * mjacob@feral.com
33  */
34 #include <unistd.h>
35 #include <stdlib.h>
36 #include <stdio.h>
37 #include <fcntl.h>
38 #include <errno.h>
39 #include <sys/ioctl.h>
40 #include "ses.h"
41 
42 /*
43  * Continuously monitor all named SES devices
44  * and turn all but INFO enclosure status
45  * values into CRITICAL enclosure status.
46  */
47 #define	BADSTAT	\
48 	(SES_ENCSTAT_UNRECOV|SES_ENCSTAT_CRITICAL|SES_ENCSTAT_NONCRITICAL)
49 int
50 main(a, v)
51 	int a;
52 	char **v;
53 {
54 	int fd, delay, dev;
55 	ses_encstat stat, *carray;
56 
57 	if (a < 3) {
58 		fprintf(stderr, "usage: %s polling-interval device "
59 		    "[ device ... ]\n", *v);
60 		return (1);
61 	}
62 	delay = atoi(v[1]);
63 	carray = malloc(a);
64 	if (carray == NULL) {
65 		perror("malloc");
66 		return (1);
67 	}
68 	bzero((void *)carray, a);
69 
70 	for (;;) {
71 		for (dev = 2; dev < a; dev++) {
72 			fd = open(v[dev], O_RDWR);
73 			if (fd < 0) {
74 				perror(v[dev]);
75 				continue;
76 			}
77 			/*
78 			 * First clear any enclosure status, in case it is
79 			 * a latched status.
80 			 */
81 			stat = 0;
82 			if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
83 				fprintf(stderr, "%s: SESIOC_SETENCSTAT1: %s\n",
84 				    v[dev], strerror(errno));
85 				(void) close(fd);
86 				continue;
87 			}
88 			/*
89 			 * Now get the actual current enclosure status.
90 			 */
91 			if (ioctl(fd, SESIOC_GETENCSTAT, (caddr_t) &stat) < 0) {
92 				fprintf(stderr, "%s: SESIOC_GETENCSTAT: %s\n",
93 				    v[dev], strerror(errno));
94 				(void) close(fd);
95 				continue;
96 			}
97 
98 			if ((stat & BADSTAT) == 0) {
99 				if (carray[dev]) {
100 					fprintf(stdout, "%s: Clearing CRITICAL "
101 					    "condition\n", v[dev]);
102 					carray[dev] = 0;
103 				}
104 				(void) close(fd);
105 				continue;
106 			}
107 			carray[dev] = 1;
108 			fprintf(stdout, "%s: Setting CRITICAL from:", v[dev]);
109 			if (stat & SES_ENCSTAT_UNRECOV)
110 				fprintf(stdout, " UNRECOVERABLE");
111 
112 			if (stat & SES_ENCSTAT_CRITICAL)
113 				fprintf(stdout, " CRITICAL");
114 
115 			if (stat & SES_ENCSTAT_NONCRITICAL)
116 				fprintf(stdout, " NONCRITICAL");
117 			putchar('\n');
118 			stat = SES_ENCSTAT_CRITICAL;
119 			if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
120 				fprintf(stderr, "%s: SESIOC_SETENCSTAT 2: %s\n",
121 				    v[dev], strerror(errno));
122 			}
123 			(void) close(fd);
124 		}
125 		sleep(delay);
126 	}
127 	/* NOTREACHED */
128 }
129