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1 /*-
2  * Copyright (c) 2010 The FreeBSD Foundation
3  * All rights reserved.
4  *
5  * This software was developed by Pawel Jakub Dawidek under sponsorship from
6  * the FreeBSD Foundation.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS OR CONTRIBUTORS BE LIABLE
21  * FOR 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
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32
33 #include <sys/types.h>
34 #include <sys/disk.h>
35 #include <sys/ioctl.h>
36 #include <sys/stat.h>
37
38 #include <assert.h>
39 #include <errno.h>
40 #include <fcntl.h>
41
42 #include <pjdlog.h>
43
44 #include "hast.h"
45 #include "subr.h"
46
47 int
48 provinfo(struct hast_resource *res, bool dowrite)
49 {
50         struct stat sb;
51
52         assert(res->hr_localpath != NULL && res->hr_localpath[0] != '\0');
53
54         if (res->hr_localfd == -1) {
55                 res->hr_localfd = open(res->hr_localpath,
56                     dowrite ? O_RDWR : O_RDONLY);
57                 if (res->hr_localfd < 0) {
58                         KEEP_ERRNO(pjdlog_errno(LOG_ERR, "Unable to open %s",
59                             res->hr_localpath));
60                         return (-1);
61                 }
62         }
63         if (fstat(res->hr_localfd, &sb) < 0) {
64                 KEEP_ERRNO(pjdlog_errno(LOG_ERR, "Unable to stat %s",
65                     res->hr_localpath));
66                 return (-1);
67         }
68         if (S_ISCHR(sb.st_mode)) {
69                 /*
70                  * If this is character device, it is most likely GEOM provider.
71                  */
72                 if (ioctl(res->hr_localfd, DIOCGMEDIASIZE,
73                     &res->hr_local_mediasize) < 0) {
74                         KEEP_ERRNO(pjdlog_errno(LOG_ERR,
75                             "Unable obtain provider %s mediasize",
76                             res->hr_localpath));
77                         return (-1);
78                 }
79                 if (ioctl(res->hr_localfd, DIOCGSECTORSIZE,
80                     &res->hr_local_sectorsize) < 0) {
81                         KEEP_ERRNO(pjdlog_errno(LOG_ERR,
82                             "Unable obtain provider %s sectorsize",
83                             res->hr_localpath));
84                         return (-1);
85                 }
86         } else if (S_ISREG(sb.st_mode)) {
87                 /*
88                  * We also support regular files for which we hardcode
89                  * sector size of 512 bytes.
90                  */
91                 res->hr_local_mediasize = sb.st_size;
92                 res->hr_local_sectorsize = 512;
93         } else {
94                 /*
95                  * We support no other file types.
96                  */
97                 pjdlog_error("%s is neither GEOM provider nor regular file.",
98                     res->hr_localpath);
99                 errno = EFTYPE;
100                 return (-1);
101         }
102         return (0);
103 }
104
105 const char *
106 role2str(int role)
107 {
108
109         switch (role) {                                                                                                                                                 
110         case HAST_ROLE_INIT:                                                                                                                                                            
111                 return ("init");
112         case HAST_ROLE_PRIMARY:                                                                                                                                                 
113                 return ("primary");
114         case HAST_ROLE_SECONDARY:                                                                                                                                                       
115                 return ("secondary");
116         }
117         return ("unknown");
118 }