xref: /freebsd/share/examples/ses/srcs/chpmon.c (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
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(int a, char **v)
51 {
52 	int fd, delay, dev;
53 	ses_encstat stat, *carray;
54 
55 	if (a < 3) {
56 		fprintf(stderr, "usage: %s polling-interval device "
57 		    "[ device ... ]\n", *v);
58 		return (1);
59 	}
60 	delay = atoi(v[1]);
61 	carray = malloc(a);
62 	if (carray == NULL) {
63 		perror("malloc");
64 		return (1);
65 	}
66 	bzero((void *)carray, a);
67 
68 	for (;;) {
69 		for (dev = 2; dev < a; dev++) {
70 			fd = open(v[dev], O_RDWR);
71 			if (fd < 0) {
72 				perror(v[dev]);
73 				continue;
74 			}
75 			/*
76 			 * First clear any enclosure status, in case it is
77 			 * a latched status.
78 			 */
79 			stat = 0;
80 			if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
81 				fprintf(stderr, "%s: SESIOC_SETENCSTAT1: %s\n",
82 				    v[dev], strerror(errno));
83 				(void) close(fd);
84 				continue;
85 			}
86 			/*
87 			 * Now get the actual current enclosure status.
88 			 */
89 			if (ioctl(fd, SESIOC_GETENCSTAT, (caddr_t) &stat) < 0) {
90 				fprintf(stderr, "%s: SESIOC_GETENCSTAT: %s\n",
91 				    v[dev], strerror(errno));
92 				(void) close(fd);
93 				continue;
94 			}
95 
96 			if ((stat & BADSTAT) == 0) {
97 				if (carray[dev]) {
98 					fprintf(stdout, "%s: Clearing CRITICAL "
99 					    "condition\n", v[dev]);
100 					carray[dev] = 0;
101 				}
102 				(void) close(fd);
103 				continue;
104 			}
105 			carray[dev] = 1;
106 			fprintf(stdout, "%s: Setting CRITICAL from:", v[dev]);
107 			if (stat & SES_ENCSTAT_UNRECOV)
108 				fprintf(stdout, " UNRECOVERABLE");
109 
110 			if (stat & SES_ENCSTAT_CRITICAL)
111 				fprintf(stdout, " CRITICAL");
112 
113 			if (stat & SES_ENCSTAT_NONCRITICAL)
114 				fprintf(stdout, " NONCRITICAL");
115 			putchar('\n');
116 			stat = SES_ENCSTAT_CRITICAL;
117 			if (ioctl(fd, SESIOC_SETENCSTAT, (caddr_t) &stat) < 0) {
118 				fprintf(stderr, "%s: SESIOC_SETENCSTAT 2: %s\n",
119 				    v[dev], strerror(errno));
120 			}
121 			(void) close(fd);
122 		}
123 		sleep(delay);
124 	}
125 	/* NOTREACHED */
126 }
127