1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/*
* Guillaume Cottenceau (gc@mandrakesoft.com)
*
* Copyright 2000 MandrakeSoft
*
* This software may be freely redistributed under the terms of the GNU
* public license.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* Portions from Erik Troan (ewt@redhat.com)
*
* Copyright 1996 Red Hat Software
*
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "log.h"
#include "modules.h"
#include "mount.h"
#ifndef DISABLE_MEDIAS
/* WARNING: this won't work if the argument is not /dev/ based */
int ensure_dev_exists(char *dev)
{
int major, minor;
int type = S_IFBLK; /* my default type is block. don't forget to change for chars */
char * name;
struct stat buf;
char * ptr;
name = &dev[5]; /* we really need that dev be passed as /dev/something.. */
if (!stat(dev, &buf))
return 0; /* if the file already exists, we assume it's correct */
if (ptr_begins_static_str(name, "sd")) {
/* SCSI disks */
major = 8;
minor = (name[2] - 'a') << 4;
if (name[3] && name[4])
minor += 10 + (name[4] - '0');
else if (name[3])
minor += (name[3] - '0');
} else if (ptr_begins_static_str(name, "hd")) {
/* IDE disks/cd's */
if (name[2] == 'a')
major = 3, minor = 0;
else if (name[2] == 'b')
major = 3, minor = 64;
else if (name[2] == 'c')
major = 22, minor = 0;
else if (name[2] == 'd')
major = 22, minor = 64;
else if (name[2] == 'e')
major = 33, minor = 0;
else if (name[2] == 'f')
major = 33, minor = 64;
else if (name[2] == 'g')
major = 34, minor = 0;
else if (name[2] == 'h')
major = 34, minor = 64;
else
return -1;
if (name[3] && name[4])
minor += 10 + (name[4] - '0');
else if (name[3])
minor += (name[3] - '0');
} else if (ptr_begins_static_str(name , "sr")) {
/* SCSI cd's */
major = 11;
minor = name[2] - '0';
} else if (ptr_begins_static_str(name, "ida/") ||
ptr_begins_static_str(name, "cciss/")) {
/* Compaq Smart Array "ida/c0d0{p1}" */
ptr = strchr(name, '/');
mkdir("/dev/ida", 0755);
mkdir("/dev/cciss", 0755);
major = ptr_begins_static_str(name, "ida/") ? 72 : 104 + charstar_to_int(ptr+2);
ptr = strchr(ptr, 'd');
minor = 16 * charstar_to_int(ptr+1);
ptr = strchr(ptr, 'p');
minor += charstar_to_int(ptr+1);
} else if (ptr_begins_static_str(name, "rd/")) {
/* DAC960 "rd/cXdXXpX" */
mkdir("/dev/rd", 0755);
major = 48 + charstar_to_int(name+4);
ptr = strchr(name+4, 'd');
minor = 8 * charstar_to_int(ptr+1);
ptr = strchr(ptr, 'p');
minor += charstar_to_int(ptr+1);
} else {
log_message("I don't know how to create device %s, please post bugreport to me!", dev);
return -1;
}
if (mknod(dev, type | 0600, makedev(major, minor))) {
log_perror(dev);
return -1;
}
return 0;
}
#endif /* DISABLE_MEDIAS */
/* mounts, creating the device if needed+possible */
int my_mount(char *dev, char *location, char *fs, int force_rw)
{
unsigned long flags = MS_MGC_VAL | (force_rw ? 0 : MS_RDONLY);
char * opts = NULL;
struct stat buf;
int rc;
#ifndef DISABLE_MEDIAS
if (strcmp(fs, "nfs")) {
rc = ensure_dev_exists(dev);
if (rc != 0) {
log_message("could not create required device file");
return -1;
}
}
#endif
log_message("mounting %s on %s as type %s", dev, location, fs);
if (stat(location, &buf)) {
if (mkdir(location, 0755)) {
log_perror("could not create location dir");
return -1;
}
} else if (!S_ISDIR(buf.st_mode)) {
log_message("not a dir %s, will unlink and mkdir", location);
if (unlink(location)) {
log_perror("could not unlink");
return -1;
}
if (mkdir(location, 0755)) {
log_perror("could not create location dir");
return -1;
}
}
#ifndef DISABLE_MEDIAS
if (!strcmp(fs, "vfat")) {
my_insmod("vfat", ANY_DRIVER_TYPE, NULL);
opts = "check=relaxed";
}
if (!strcmp(fs, "reiserfs"))
my_insmod("reiserfs", ANY_DRIVER_TYPE, NULL);
if (!strcmp(fs, "iso9660"))
my_insmod("isofs", ANY_DRIVER_TYPE, NULL);
#endif
#ifndef DISABLE_NETWORK
if (!strcmp(fs, "nfs")) {
int flags = MS_RDONLY;
my_insmod("nfs", ANY_DRIVER_TYPE, NULL);
log_message("preparing nfsmount for %s", dev);
rc = nfsmount_prepare(dev, &flags, &opts);
if (rc != 0)
return rc;
}
#endif
rc = mount(dev, location, fs, flags, opts);
if (rc != 0) {
log_perror("mount failed");
rmdir(location);
}
return rc;
}
|
