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e83bebef LP |
1 | #pragma once |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2015 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <stdbool.h> | |
23 | ||
5da38d07 | 24 | #include "cgroup-util.h" |
a4c35b6b | 25 | #include "volatile-util.h" |
5da38d07 | 26 | |
4f086aab SU |
27 | typedef enum MountSettingsMask { |
28 | MOUNT_FATAL = 1 << 0, /* if set, a mount error is considered fatal */ | |
29 | MOUNT_USE_USERNS = 1 << 1, /* if set, mounts are patched considering uid/gid shifts in a user namespace */ | |
30 | MOUNT_IN_USERNS = 1 << 2, /* if set, the mount is executed in the inner child, otherwise in the outer child */ | |
31 | MOUNT_APPLY_APIVFS_RO = 1 << 3, /* if set, /proc/sys, and /sysfs will be mounted read-only, otherwise read-write. */ | |
32 | MOUNT_APPLY_APIVFS_NETNS = 1 << 4, /* if set, /proc/sys/net will be mounted read-write. | |
33 | Works only if MOUNT_APPLY_APIVFS_RO is also set. */ | |
34 | } MountSettingsMask; | |
35 | ||
e83bebef LP |
36 | typedef enum CustomMountType { |
37 | CUSTOM_MOUNT_BIND, | |
38 | CUSTOM_MOUNT_TMPFS, | |
39 | CUSTOM_MOUNT_OVERLAY, | |
40 | _CUSTOM_MOUNT_TYPE_MAX, | |
41 | _CUSTOM_MOUNT_TYPE_INVALID = -1 | |
42 | } CustomMountType; | |
43 | ||
44 | typedef struct CustomMount { | |
45 | CustomMountType type; | |
46 | bool read_only; | |
47 | char *source; /* for overlayfs this is the upper directory */ | |
48 | char *destination; | |
49 | char *options; | |
50 | char *work_dir; | |
51 | char **lower; | |
c7a4890c | 52 | char *rm_rf_tmpdir; |
e83bebef LP |
53 | } CustomMount; |
54 | ||
55 | CustomMount* custom_mount_add(CustomMount **l, unsigned *n, CustomMountType t); | |
e83bebef | 56 | void custom_mount_free_all(CustomMount *l, unsigned n); |
86c0dd4a | 57 | int custom_mount_prepare_all(const char *dest, CustomMount *l, unsigned n); |
ad85779a | 58 | |
e83bebef LP |
59 | int bind_mount_parse(CustomMount **l, unsigned *n, const char *s, bool read_only); |
60 | int tmpfs_mount_parse(CustomMount **l, unsigned *n, const char *s); | |
ad85779a | 61 | int overlay_mount_parse(CustomMount **l, unsigned *n, const char *s, bool read_only); |
e83bebef | 62 | |
4f086aab SU |
63 | int mount_all(const char *dest, MountSettingsMask mount_settings, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context); |
64 | int mount_sysfs(const char *dest, MountSettingsMask mount_settings); | |
e83bebef | 65 | |
5da38d07 TH |
66 | int mount_cgroups(const char *dest, CGroupUnified unified_requested, bool userns, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context, bool use_cgns); |
67 | int mount_systemd_cgroup_writable(const char *dest, CGroupUnified unified_requested); | |
e83bebef LP |
68 | |
69 | int mount_custom(const char *dest, CustomMount *mounts, unsigned n, bool userns, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context); | |
70 | ||
71 | int setup_volatile(const char *directory, VolatileMode mode, bool userns, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context); | |
72 | int setup_volatile_state(const char *directory, VolatileMode mode, bool userns, uid_t uid_shift, uid_t uid_range, const char *selinux_apifs_context); | |
b53ede69 PW |
73 | |
74 | int pivot_root_parse(char **pivot_root_new, char **pivot_root_old, const char *s); | |
75 | int setup_pivot_root(const char *directory, const char *pivot_root_new, const char *pivot_root_old); |