1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <stdlib.h>
31*0Sstevel@tonic-gate #include <errno.h>
32*0Sstevel@tonic-gate #include <string.h>
33*0Sstevel@tonic-gate #include <meta.h>
34*0Sstevel@tonic-gate #include <sys/types.h>
35*0Sstevel@tonic-gate #include <sys/mkdev.h>
36*0Sstevel@tonic-gate #include <sys/stat.h>
37*0Sstevel@tonic-gate #include <limits.h>
38*0Sstevel@tonic-gate #include <svm.h>
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate /*
41*0Sstevel@tonic-gate * FUNCTION: valid_bootlist
42*0Sstevel@tonic-gate *
43*0Sstevel@tonic-gate * INPUT: file pointer, line buffer, line_length
44*0Sstevel@tonic-gate *
45*0Sstevel@tonic-gate * RETURN VALUES:
46*0Sstevel@tonic-gate * 0 - SUCCESS
47*0Sstevel@tonic-gate * -1 - FAIL
48*0Sstevel@tonic-gate *
49*0Sstevel@tonic-gate */
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate int
valid_bootlist(FILE * fp,int line_len)52*0Sstevel@tonic-gate valid_bootlist(FILE *fp, int line_len)
53*0Sstevel@tonic-gate {
54*0Sstevel@tonic-gate char *bp = NULL;
55*0Sstevel@tonic-gate char *line;
56*0Sstevel@tonic-gate
57*0Sstevel@tonic-gate /*
58*0Sstevel@tonic-gate * errno may not be cleared by callee routines and we
59*0Sstevel@tonic-gate * we want to catch fgets failures hence errno is reset.
60*0Sstevel@tonic-gate */
61*0Sstevel@tonic-gate errno = 0;
62*0Sstevel@tonic-gate if ((line = malloc(line_len)) == NULL)
63*0Sstevel@tonic-gate return (RET_ERROR);
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate while (fgets(line, line_len, fp) != NULL) {
66*0Sstevel@tonic-gate bp = strstr(line, "mddb_bootlist");
67*0Sstevel@tonic-gate if (bp != NULL) {
68*0Sstevel@tonic-gate /* if not commented out then breakout */
69*0Sstevel@tonic-gate if (*line != '*' && *line != '#') {
70*0Sstevel@tonic-gate break;
71*0Sstevel@tonic-gate }
72*0Sstevel@tonic-gate }
73*0Sstevel@tonic-gate }
74*0Sstevel@tonic-gate
75*0Sstevel@tonic-gate free(line);
76*0Sstevel@tonic-gate if (bp == NULL || errno != 0)
77*0Sstevel@tonic-gate return (RET_ERROR);
78*0Sstevel@tonic-gate
79*0Sstevel@tonic-gate return (RET_SUCCESS);
80*0Sstevel@tonic-gate }
81*0Sstevel@tonic-gate
82*0Sstevel@tonic-gate /*
83*0Sstevel@tonic-gate * FUNCTION: svm_check
84*0Sstevel@tonic-gate * Check the existance of DiskSuite or SVM
85*0Sstevel@tonic-gate *
86*0Sstevel@tonic-gate * INPUT: rootpath
87*0Sstevel@tonic-gate *
88*0Sstevel@tonic-gate * RETURN VALUES:
89*0Sstevel@tonic-gate * 0 - SUCCESS
90*0Sstevel@tonic-gate * -1 - FAIL
91*0Sstevel@tonic-gate */
92*0Sstevel@tonic-gate
93*0Sstevel@tonic-gate int
svm_check(char * path)94*0Sstevel@tonic-gate svm_check(char *path)
95*0Sstevel@tonic-gate {
96*0Sstevel@tonic-gate FILE *fp;
97*0Sstevel@tonic-gate char tmppath[PATH_MAX];
98*0Sstevel@tonic-gate int rval;
99*0Sstevel@tonic-gate
100*0Sstevel@tonic-gate (void) strcat(strcpy(tmppath, path), MD_CONF);
101*0Sstevel@tonic-gate
102*0Sstevel@tonic-gate if ((fp = fopen(tmppath, "r")) == NULL) {
103*0Sstevel@tonic-gate rval = errno;
104*0Sstevel@tonic-gate goto free_exit;
105*0Sstevel@tonic-gate }
106*0Sstevel@tonic-gate
107*0Sstevel@tonic-gate rval = valid_bootlist(fp, MDDB_BOOTLIST_MAX_LEN);
108*0Sstevel@tonic-gate
109*0Sstevel@tonic-gate debug_printf("svm_check(): valid bootlist in %s. status %d\n",
110*0Sstevel@tonic-gate tmppath, rval);
111*0Sstevel@tonic-gate
112*0Sstevel@tonic-gate if (rval == RET_SUCCESS) {
113*0Sstevel@tonic-gate goto free_exit;
114*0Sstevel@tonic-gate }
115*0Sstevel@tonic-gate (void) fclose(fp);
116*0Sstevel@tonic-gate
117*0Sstevel@tonic-gate /* not found in md.conf try etc/system */
118*0Sstevel@tonic-gate (void) strcat(strcpy(tmppath, path), SYSTEM_FILE);
119*0Sstevel@tonic-gate
120*0Sstevel@tonic-gate if ((fp = fopen(tmppath, "r")) == NULL) {
121*0Sstevel@tonic-gate rval = errno;
122*0Sstevel@tonic-gate goto free_exit;
123*0Sstevel@tonic-gate }
124*0Sstevel@tonic-gate
125*0Sstevel@tonic-gate rval = valid_bootlist(fp, MDDB_BOOTLIST_MAX_LEN);
126*0Sstevel@tonic-gate
127*0Sstevel@tonic-gate debug_printf("svm_check(): valid bootlist in %s. status %d\n",
128*0Sstevel@tonic-gate tmppath, rval);
129*0Sstevel@tonic-gate free_exit:
130*0Sstevel@tonic-gate (void) fclose(fp);
131*0Sstevel@tonic-gate if (rval > 0)
132*0Sstevel@tonic-gate rval = RET_ERROR;
133*0Sstevel@tonic-gate return (rval);
134*0Sstevel@tonic-gate }
135*0Sstevel@tonic-gate
136*0Sstevel@tonic-gate /*
137*0Sstevel@tonic-gate * FUNCTION: svm_is_md
138*0Sstevel@tonic-gate * Check if the the given device name has an md driver.
139*0Sstevel@tonic-gate * INPUT: special device name (/dev/dsk/c0t0d0s0 or /dev/md/dsk/d10)
140*0Sstevel@tonic-gate *
141*0Sstevel@tonic-gate * RETURN:
142*0Sstevel@tonic-gate * 1 - if it is a metadevice.
143*0Sstevel@tonic-gate * 0 - if it is not a metadevice.
144*0Sstevel@tonic-gate */
145*0Sstevel@tonic-gate
146*0Sstevel@tonic-gate int
svm_is_md(char * device_name)147*0Sstevel@tonic-gate svm_is_md(char *device_name)
148*0Sstevel@tonic-gate {
149*0Sstevel@tonic-gate char buf[30];
150*0Sstevel@tonic-gate struct stat sbuf;
151*0Sstevel@tonic-gate int rval = 0;
152*0Sstevel@tonic-gate
153*0Sstevel@tonic-gate (void) memset(buf, 0, 30);
154*0Sstevel@tonic-gate
155*0Sstevel@tonic-gate debug_printf("svm_is_md(): device %s\n", device_name);
156*0Sstevel@tonic-gate if (stat(device_name, &sbuf) != 0)
157*0Sstevel@tonic-gate return (RET_ERROR);
158*0Sstevel@tonic-gate
159*0Sstevel@tonic-gate if (get_drv_name(major(sbuf.st_rdev), "/", buf) == RET_ERROR) {
160*0Sstevel@tonic-gate debug_printf("svm_is_md(): device get_drv_name failed: %s\n",
161*0Sstevel@tonic-gate device_name);
162*0Sstevel@tonic-gate return (0);
163*0Sstevel@tonic-gate }
164*0Sstevel@tonic-gate if (strcmp(buf, MD_MODULE) == 0) {
165*0Sstevel@tonic-gate debug_printf("svm_is_md(): device %s succeed\n", device_name);
166*0Sstevel@tonic-gate rval = 1;
167*0Sstevel@tonic-gate }
168*0Sstevel@tonic-gate return (rval);
169*0Sstevel@tonic-gate }
170