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When a service is chrooted with the option RootDirectory=/opt/..., then
the options PrivateDevices, PrivateTmp, ProtectHome, ProtectSystem must
mount the directories under $RootDirectory/{dev,tmp,home,usr,boot}.
The test-ns tool can test setup_namespace() with and without chroot:
$ sudo TEST_NS_PROJECTS=/home/lennart/projects ./test-ns
$ sudo TEST_NS_CHROOT=/home/alban/debian-tree TEST_NS_PROJECTS=/home/alban/debian-tree/home/alban/Documents ./test-ns
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include "macro.h"
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typedef enum ProtectHome {
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PROTECT_HOME_NO,
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PROTECT_HOME_YES,
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PROTECT_HOME_READ_ONLY,
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_PROTECT_HOME_MAX,
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_PROTECT_HOME_INVALID = -1
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} ProtectHome;
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typedef enum ProtectSystem {
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PROTECT_SYSTEM_NO,
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PROTECT_SYSTEM_YES,
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PROTECT_SYSTEM_FULL,
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_PROTECT_SYSTEM_MAX,
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_PROTECT_SYSTEM_INVALID = -1
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} ProtectSystem;
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int setup_namespace(const char *chroot,
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char **read_write_dirs,
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char **read_only_dirs,
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char **inaccessible_dirs,
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const char *tmp_dir,
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const char *var_tmp_dir,
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const char *endpoint_path,
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bool private_dev,
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ProtectHome protect_home,
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ProtectSystem protect_system,
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unsigned long mount_flags);
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int setup_tmp_dirs(const char *id,
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char **tmp_dir,
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char **var_tmp_dir);
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int setup_netns(int netns_storage_socket[2]);
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const char* protect_home_to_string(ProtectHome p) _const_;
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ProtectHome protect_home_from_string(const char *s) _pure_;
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const char* protect_system_to_string(ProtectSystem p) _const_;
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ProtectSystem protect_system_from_string(const char *s) _pure_;
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