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
|
/*
* Copyright (c) 2009 Vincent Fourmond <fourmond@debian.org>
*
* This software is distributed under the terms and conditions of the
* GNU General Public License. See file GPL for the full text of the license.
*/
/**
This program tries uses find_sysfs_device from src/policy.c to find
sysfs device information for the device given as argument.
This program is only intended for development purposes.
DO NOT INSTALL IT SUID ROOT !
DO NOT RUN IT WITH ROOT PRIVILEGES ! (there's no need for that)
*/
/* #include "policy.h" */
#include <stdio.h>
/* For stat: */
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
/* The very functions we want to test ! */
int find_sysfs_device( const char* dev, char* blockdevpath,
size_t blockdevpathsize );
int is_blockdev_attr_true( const char* blockdevpath,
const char* attr );
const char * bus_has_ancestry(const char * blockdevpath,
char** buses);
static char* hotplug_buses[] = { "usb", "ieee1394",
"mmc", "pcmcia", NULL };
int main(int argc, char *argv[])
{
char device_path[512];
const char * bus;
struct stat devstat;
if(argc != 2) {
fprintf(stderr, "Usage: %s device\n", argv[0]);
return 1;
}
if(stat(argv[1], &devstat)) {
perror("Could not open file");
return 1;
}
if(! (devstat.st_mode & S_IFBLK)) {
fprintf(stderr, "Sorry, `%s' is not a block device.\n", argv[1]);
return 1;
}
if(find_sysfs_device(argv[1], device_path, sizeof(device_path))) {
fprintf(stdout, "Found sysfs device for %s : %s\n",
argv[1], device_path);
fprintf(stdout, "Device %s is removable: %s\n",
argv[1], is_blockdev_attr_true(device_path,"removable") ?
"yes" :"no");
bus = bus_has_ancestry(device_path, hotplug_buses);
if(bus)
fprintf(stdout, "Found whitelisted bus: %s\n", bus);
else
fprintf(stdout, "No whitelisted bus found\n", bus);
return 0;
}
else {
fprintf(stderr, "find_sysfs_device failed for %s\n", argv[1]);
return 1;
}
}
|
