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1da177e4 LT |
1 | /* -*- c -*- |
2 | * linux/include/linux/auto_fs4.h | |
3 | * | |
4 | * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org> | |
5 | * | |
6 | * This file is part of the Linux kernel and is made available under | |
7 | * the terms of the GNU General Public License, version 2, or at your | |
8 | * option, any later version, incorporated herein by reference. | |
9 | */ | |
10 | ||
11 | #ifndef _LINUX_AUTO_FS4_H | |
12 | #define _LINUX_AUTO_FS4_H | |
13 | ||
14 | /* Include common v3 definitions */ | |
15 | #include <linux/auto_fs.h> | |
16 | ||
17 | /* autofs v4 definitions */ | |
18 | #undef AUTOFS_PROTO_VERSION | |
19 | #undef AUTOFS_MIN_PROTO_VERSION | |
20 | #undef AUTOFS_MAX_PROTO_VERSION | |
21 | ||
5c0a32fc | 22 | #define AUTOFS_PROTO_VERSION 5 |
1da177e4 | 23 | #define AUTOFS_MIN_PROTO_VERSION 3 |
5c0a32fc | 24 | #define AUTOFS_MAX_PROTO_VERSION 5 |
1da177e4 | 25 | |
5c0a32fc | 26 | #define AUTOFS_PROTO_SUBVERSION 0 |
1da177e4 LT |
27 | |
28 | /* Mask for expire behaviour */ | |
29 | #define AUTOFS_EXP_IMMEDIATE 1 | |
30 | #define AUTOFS_EXP_LEAVES 2 | |
31 | ||
5c0a32fc IK |
32 | /* Daemon notification packet types */ |
33 | enum autofs_notify { | |
34 | NFY_NONE, | |
35 | NFY_MOUNT, | |
36 | NFY_EXPIRE | |
37 | }; | |
38 | ||
39 | /* Kernel protocol version 4 packet types */ | |
40 | ||
41 | /* Expire entry (umount request) */ | |
42 | #define autofs_ptype_expire_multi 2 | |
43 | ||
44 | /* Kernel protocol version 5 packet types */ | |
45 | ||
46 | /* Indirect mount missing and expire requests. */ | |
47 | #define autofs_ptype_missing_indirect 3 | |
48 | #define autofs_ptype_expire_indirect 4 | |
49 | ||
50 | /* Direct mount missing and expire requests */ | |
51 | #define autofs_ptype_missing_direct 5 | |
52 | #define autofs_ptype_expire_direct 6 | |
1da177e4 LT |
53 | |
54 | /* v4 multi expire (via pipe) */ | |
55 | struct autofs_packet_expire_multi { | |
56 | struct autofs_packet_hdr hdr; | |
57 | autofs_wqt_t wait_queue_token; | |
58 | int len; | |
59 | char name[NAME_MAX+1]; | |
60 | }; | |
61 | ||
e8514478 IK |
62 | union autofs_packet_union { |
63 | struct autofs_packet_hdr hdr; | |
64 | struct autofs_packet_missing missing; | |
65 | struct autofs_packet_expire expire; | |
66 | struct autofs_packet_expire_multi expire_multi; | |
67 | }; | |
68 | ||
5c0a32fc IK |
69 | /* autofs v5 common packet struct */ |
70 | struct autofs_v5_packet { | |
71 | struct autofs_packet_hdr hdr; | |
72 | autofs_wqt_t wait_queue_token; | |
73 | __u32 dev; | |
74 | __u64 ino; | |
75 | __u32 uid; | |
76 | __u32 gid; | |
77 | __u32 pid; | |
78 | __u32 tgid; | |
79 | __u32 len; | |
80 | char name[NAME_MAX+1]; | |
81 | }; | |
82 | ||
83 | typedef struct autofs_v5_packet autofs_packet_missing_indirect_t; | |
84 | typedef struct autofs_v5_packet autofs_packet_expire_indirect_t; | |
85 | typedef struct autofs_v5_packet autofs_packet_missing_direct_t; | |
86 | typedef struct autofs_v5_packet autofs_packet_expire_direct_t; | |
87 | ||
e8514478 | 88 | union autofs_v5_packet_union { |
1da177e4 | 89 | struct autofs_packet_hdr hdr; |
5c0a32fc | 90 | struct autofs_v5_packet v5_packet; |
e8514478 IK |
91 | autofs_packet_missing_indirect_t missing_indirect; |
92 | autofs_packet_expire_indirect_t expire_indirect; | |
93 | autofs_packet_missing_direct_t missing_direct; | |
94 | autofs_packet_expire_direct_t expire_direct; | |
1da177e4 LT |
95 | }; |
96 | ||
97 | #define AUTOFS_IOC_EXPIRE_MULTI _IOW(0x93,0x66,int) | |
5c0a32fc IK |
98 | #define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI |
99 | #define AUTOFS_IOC_EXPIRE_DIRECT AUTOFS_IOC_EXPIRE_MULTI | |
1da177e4 LT |
100 | #define AUTOFS_IOC_PROTOSUBVER _IOR(0x93,0x67,int) |
101 | #define AUTOFS_IOC_ASKREGHOST _IOR(0x93,0x68,int) | |
102 | #define AUTOFS_IOC_TOGGLEREGHOST _IOR(0x93,0x69,int) | |
103 | #define AUTOFS_IOC_ASKUMOUNT _IOR(0x93,0x70,int) | |
104 | ||
105 | ||
106 | #endif /* _LINUX_AUTO_FS4_H */ |