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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
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 <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include "log.h"
#include "namespace.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 *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,
};
char *root_directory;
char *projects_directory;
int r;
char tmp_dir[] = "/tmp/systemd-private-XXXXXX",
var_tmp_dir[] = "/var/tmp/systemd-private-XXXXXX";
log_set_max_level(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,
&ns_info,
(char **) writable,
(char **) readonly,
(char **) inaccessible,
NULL,
&(BindMount) { .source = (char*) "/usr/bin", .destination = (char*) "/etc/systemd", .read_only = true }, 1,
&(TemporaryFileSystem) { .path = (char*) "/var", .options = (char*) "ro" }, 1,
tmp_dir,
var_tmp_dir,
PROTECT_HOME_NO,
PROTECT_SYSTEM_NO,
0,
0);
if (r < 0) {
log_error_errno(r, "Failed to setup 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;
}
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