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
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include "log.h"
#include "namespace.h"
#include "tests.h"
int main(int argc, char *argv[]) {
const char * const writable[] = {
"/home",
"-/home/lennart/projects/foobar", /* this should be masked automatically */
NULL
};
const char * const readonly[] = {
/* "/", */
/* "/usr", */
"/boot",
"/lib",
"/usr/lib",
"-/lib64",
"-/usr/lib64",
NULL
};
const char * const exec[] = {
"/lib",
"/usr",
"-/lib64",
"-/usr/lib64",
NULL
};
const char * const no_exec[] = {
"/var",
NULL
};
const char *inaccessible[] = {
"/home/lennart/projects",
NULL
};
static const NamespaceInfo ns_info = {
.private_dev = true,
.protect_control_groups = true,
.protect_kernel_tunables = true,
.protect_kernel_modules = true,
.protect_proc = PROTECT_PROC_NOACCESS,
.proc_subset = PROC_SUBSET_PID,
};
char *root_directory;
char *projects_directory;
int r;
char tmp_dir[] = "/tmp/systemd-private-XXXXXX",
var_tmp_dir[] = "/var/tmp/systemd-private-XXXXXX";
test_setup_logging(LOG_DEBUG);
assert_se(mkdtemp(tmp_dir));
assert_se(mkdtemp(var_tmp_dir));
root_directory = getenv("TEST_NS_CHROOT");
projects_directory = getenv("TEST_NS_PROJECTS");
if (projects_directory)
inaccessible[0] = projects_directory;
log_info("Inaccessible directory: '%s'", inaccessible[0]);
if (root_directory)
log_info("Chroot: '%s'", root_directory);
else
log_info("Not chrooted");
r = setup_namespace(root_directory,
NULL,
NULL,
NULL,
&ns_info,
(char **) writable,
(char **) readonly,
(char **) inaccessible,
NULL,
(char **) exec,
(char **) no_exec,
NULL,
&(BindMount) { .source = (char*) "/usr/bin", .destination = (char*) "/etc/systemd", .read_only = true }, 1,
&(TemporaryFileSystem) { .path = (char*) "/var", .options = (char*) "ro" }, 1,
NULL,
0,
NULL,
tmp_dir,
var_tmp_dir,
NULL,
-EBADF,
NULL,
0,
NULL,
NULL,
0,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL);
if (r < 0) {
log_error_errno(r, "Failed to set up namespace: %m");
log_info("Usage:\n"
" sudo TEST_NS_PROJECTS=/home/lennart/projects ./test-ns\n"
" sudo TEST_NS_CHROOT=/home/alban/debian-tree TEST_NS_PROJECTS=/home/alban/debian-tree/home/alban/Documents ./test-ns");
return 1;
}
execl("/bin/sh", "/bin/sh", NULL);
log_error_errno(errno, "execl(): %m");
return 1;
}
|
