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
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2010 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mount.h>
#include <linux/fs.h>
#include "namespace.h"
#include "execute.h"
#include "log.h"
int main(int argc, char *argv[]) {
const char * const writable[] = {
"/home",
NULL
};
const char * const readonly[] = {
"/",
"/usr",
"/boot",
NULL
};
const char * const inaccessible[] = {
"/home/lennart/projects",
NULL
};
int r;
char tmp_dir[] = "/tmp/systemd-private-XXXXXX",
var_tmp_dir[] = "/var/tmp/systemd-private-XXXXXX";
assert_se(mkdtemp(tmp_dir));
assert_se(mkdtemp(var_tmp_dir));
r = setup_namespace((char **) writable,
(char **) readonly,
(char **) inaccessible,
tmp_dir,
var_tmp_dir,
NULL,
true,
PROTECT_HOME_NO,
PROTECT_SYSTEM_NO,
0);
if (r < 0) {
log_error_errno(r, "Failed to setup namespace: %m");
return 1;
}
execl("/bin/sh", "/bin/sh", NULL);
log_error("execl(): %m");
return 1;
}
|
