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1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2 | ||
3 | #ifndef __LXC_MOUNT_UTILS_H | |
4 | #define __LXC_MOUNT_UTILS_H | |
5 | ||
6 | #include <stdio.h> | |
7 | #include <stdlib.h> | |
8 | #include <sys/mount.h> | |
9 | ||
10 | #include "compiler.h" | |
11 | ||
12 | /* open_tree() flags */ | |
13 | #ifndef OPEN_TREE_CLONE | |
14 | #define OPEN_TREE_CLONE 1 | |
15 | #endif | |
16 | ||
17 | #ifndef OPEN_TREE_CLOEXEC | |
18 | #define OPEN_TREE_CLOEXEC O_CLOEXEC | |
19 | #endif | |
20 | ||
21 | /* move_mount() flags */ | |
22 | #ifndef MOVE_MOUNT_F_SYMLINKS | |
23 | #define MOVE_MOUNT_F_SYMLINKS 0x00000001 /* Follow symlinks on from path */ | |
24 | #endif | |
25 | ||
26 | #ifndef MOVE_MOUNT_F_AUTOMOUNTS | |
27 | #define MOVE_MOUNT_F_AUTOMOUNTS 0x00000002 /* Follow automounts on from path */ | |
28 | #endif | |
29 | ||
30 | #ifndef MOVE_MOUNT_F_EMPTY_PATH | |
31 | #define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */ | |
32 | #endif | |
33 | ||
34 | #ifndef MOVE_MOUNT_T_SYMLINKS | |
35 | #define MOVE_MOUNT_T_SYMLINKS 0x00000010 /* Follow symlinks on to path */ | |
36 | #endif | |
37 | ||
38 | #ifndef MOVE_MOUNT_T_AUTOMOUNTS | |
39 | #define MOVE_MOUNT_T_AUTOMOUNTS 0x00000020 /* Follow automounts on to path */ | |
40 | #endif | |
41 | ||
42 | #ifndef MOVE_MOUNT_T_EMPTY_PATH | |
43 | #define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */ | |
44 | #endif | |
45 | ||
46 | #ifndef MOVE_MOUNT__MASK | |
47 | #define MOVE_MOUNT__MASK 0x00000077 | |
48 | #endif | |
49 | ||
50 | /* fsopen() flags */ | |
51 | #ifndef FSOPEN_CLOEXEC | |
52 | #define FSOPEN_CLOEXEC 0x00000001 | |
53 | #endif | |
54 | ||
55 | /* fspick() flags */ | |
56 | #ifndef FSPICK_CLOEXEC | |
57 | #define FSPICK_CLOEXEC 0x00000001 | |
58 | #endif | |
59 | ||
60 | #ifndef FSPICK_SYMLINK_NOFOLLOW | |
61 | #define FSPICK_SYMLINK_NOFOLLOW 0x00000002 | |
62 | #endif | |
63 | ||
64 | #ifndef FSPICK_NO_AUTOMOUNT | |
65 | #define FSPICK_NO_AUTOMOUNT 0x00000004 | |
66 | #endif | |
67 | ||
68 | #ifndef FSPICK_EMPTY_PATH | |
69 | #define FSPICK_EMPTY_PATH 0x00000008 | |
70 | #endif | |
71 | ||
72 | /* fsconfig() commands */ | |
73 | #ifndef FSCONFIG_SET_FLAG | |
74 | #define FSCONFIG_SET_FLAG 0 /* Set parameter, supplying no value */ | |
75 | #endif | |
76 | ||
77 | #ifndef FSCONFIG_SET_STRING | |
78 | #define FSCONFIG_SET_STRING 1 /* Set parameter, supplying a string value */ | |
79 | #endif | |
80 | ||
81 | #ifndef FSCONFIG_SET_BINARY | |
82 | #define FSCONFIG_SET_BINARY 2 /* Set parameter, supplying a binary blob value */ | |
83 | #endif | |
84 | ||
85 | #ifndef FSCONFIG_SET_PATH | |
86 | #define FSCONFIG_SET_PATH 3 /* Set parameter, supplying an object by path */ | |
87 | #endif | |
88 | ||
89 | #ifndef FSCONFIG_SET_PATH_EMPTY | |
90 | #define FSCONFIG_SET_PATH_EMPTY 4 /* Set parameter, supplying an object by (empty) path */ | |
91 | #endif | |
92 | ||
93 | #ifndef FSCONFIG_SET_FD | |
94 | #define FSCONFIG_SET_FD 5 /* Set parameter, supplying an object by fd */ | |
95 | #endif | |
96 | ||
97 | #ifndef FSCONFIG_CMD_CREATE | |
98 | #define FSCONFIG_CMD_CREATE 6 /* Invoke superblock creation */ | |
99 | #endif | |
100 | ||
101 | #ifndef FSCONFIG_CMD_RECONFIGURE | |
102 | #define FSCONFIG_CMD_RECONFIGURE 7 /* Invoke superblock reconfiguration */ | |
103 | #endif | |
104 | ||
105 | /* fsmount() flags */ | |
106 | #ifndef FSMOUNT_CLOEXEC | |
107 | #define FSMOUNT_CLOEXEC 0x00000001 | |
108 | #endif | |
109 | ||
110 | /* mount attributes */ | |
111 | #ifndef MOUNT_ATTR_RDONLY | |
112 | #define MOUNT_ATTR_RDONLY 0x00000001 /* Mount read-only */ | |
113 | #endif | |
114 | ||
115 | #ifndef MOUNT_ATTR_NOSUID | |
116 | #define MOUNT_ATTR_NOSUID 0x00000002 /* Ignore suid and sgid bits */ | |
117 | #endif | |
118 | ||
119 | #ifndef MOUNT_ATTR_NODEV | |
120 | #define MOUNT_ATTR_NODEV 0x00000004 /* Disallow access to device special files */ | |
121 | #endif | |
122 | ||
123 | #ifndef MOUNT_ATTR_NOEXEC | |
124 | #define MOUNT_ATTR_NOEXEC 0x00000008 /* Disallow program execution */ | |
125 | #endif | |
126 | ||
127 | #ifndef MOUNT_ATTR__ATIME | |
128 | #define MOUNT_ATTR__ATIME 0x00000070 /* Setting on how atime should be updated */ | |
129 | #endif | |
130 | ||
131 | #ifndef MOUNT_ATTR_RELATIME | |
132 | #define MOUNT_ATTR_RELATIME 0x00000000 /* - Update atime relative to mtime/ctime. */ | |
133 | #endif | |
134 | ||
135 | #ifndef MOUNT_ATTR_NOATIME | |
136 | #define MOUNT_ATTR_NOATIME 0x00000010 /* - Do not update access times. */ | |
137 | #endif | |
138 | ||
139 | #ifndef MOUNT_ATTR_STRICTATIME | |
140 | #define MOUNT_ATTR_STRICTATIME 0x00000020 /* - Always perform atime updates */ | |
141 | #endif | |
142 | ||
143 | #ifndef MOUNT_ATTR_NODIRATIME | |
144 | #define MOUNT_ATTR_NODIRATIME 0x00000080 /* Do not update directory access times */ | |
145 | #endif | |
146 | ||
147 | __hidden extern int mnt_attributes_new(unsigned int old_flags, unsigned int *new_flags); | |
148 | ||
149 | __hidden extern int mnt_attributes_old(unsigned int new_flags, unsigned int *old_flags); | |
150 | ||
151 | #endif /* __LXC_MOUNT_UTILS_H */ |