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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * include/linux/nfs4.h
4 *
5 * NFSv4 protocol definitions.
6 *
7 * Copyright (c) 2002 The Regents of the University of Michigan.
8 * All rights reserved.
9 *
10 * Kendrick Smith <kmsmith@umich.edu>
11 * Andy Adamson <andros@umich.edu>
12 */
13
14#ifndef _UAPI_LINUX_NFS4_H
15#define _UAPI_LINUX_NFS4_H
16
17#include <linux/types.h>
18
19#define NFS4_BITMAP_SIZE 3
20#define NFS4_VERIFIER_SIZE 8
21#define NFS4_STATEID_SEQID_SIZE 4
22#define NFS4_STATEID_OTHER_SIZE 12
23#define NFS4_STATEID_SIZE (NFS4_STATEID_SEQID_SIZE + NFS4_STATEID_OTHER_SIZE)
24#define NFS4_FHSIZE 128
25#define NFS4_MAXPATHLEN PATH_MAX
26#define NFS4_MAXNAMLEN NAME_MAX
27#define NFS4_OPAQUE_LIMIT 1024
28#define NFS4_MAX_SESSIONID_LEN 16
29
30#define NFS4_ACCESS_READ 0x0001
31#define NFS4_ACCESS_LOOKUP 0x0002
32#define NFS4_ACCESS_MODIFY 0x0004
33#define NFS4_ACCESS_EXTEND 0x0008
34#define NFS4_ACCESS_DELETE 0x0010
35#define NFS4_ACCESS_EXECUTE 0x0020
36#define NFS4_ACCESS_XAREAD 0x0040
37#define NFS4_ACCESS_XAWRITE 0x0080
38#define NFS4_ACCESS_XALIST 0x0100
39
40#define NFS4_FH_PERSISTENT 0x0000
41#define NFS4_FH_NOEXPIRE_WITH_OPEN 0x0001
42#define NFS4_FH_VOLATILE_ANY 0x0002
43#define NFS4_FH_VOL_MIGRATION 0x0004
44#define NFS4_FH_VOL_RENAME 0x0008
45
46#define NFS4_OPEN_RESULT_CONFIRM 0x0002
47#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004
48#define NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK 0x0020
49
50#define NFS4_SHARE_ACCESS_MASK 0x000F
51#define NFS4_SHARE_ACCESS_READ 0x0001
52#define NFS4_SHARE_ACCESS_WRITE 0x0002
53#define NFS4_SHARE_ACCESS_BOTH 0x0003
54#define NFS4_SHARE_DENY_READ 0x0001
55#define NFS4_SHARE_DENY_WRITE 0x0002
56#define NFS4_SHARE_DENY_BOTH 0x0003
57
58/* nfs41 */
59#define NFS4_SHARE_WANT_MASK 0xFF00
60#define NFS4_SHARE_WANT_NO_PREFERENCE 0x0000
61#define NFS4_SHARE_WANT_READ_DELEG 0x0100
62#define NFS4_SHARE_WANT_WRITE_DELEG 0x0200
63#define NFS4_SHARE_WANT_ANY_DELEG 0x0300
64#define NFS4_SHARE_WANT_NO_DELEG 0x0400
65#define NFS4_SHARE_WANT_CANCEL 0x0500
66
67#define NFS4_SHARE_WHEN_MASK 0xF0000
68#define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL 0x10000
69#define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED 0x20000
70
71#define NFS4_CDFC4_FORE 0x1
72#define NFS4_CDFC4_BACK 0x2
73#define NFS4_CDFC4_BOTH 0x3
74#define NFS4_CDFC4_FORE_OR_BOTH 0x3
75#define NFS4_CDFC4_BACK_OR_BOTH 0x7
76
77#define NFS4_CDFS4_FORE 0x1
78#define NFS4_CDFS4_BACK 0x2
79#define NFS4_CDFS4_BOTH 0x3
80
81#define NFS4_SET_TO_SERVER_TIME 0
82#define NFS4_SET_TO_CLIENT_TIME 1
83
84#define NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE 0
85#define NFS4_ACE_ACCESS_DENIED_ACE_TYPE 1
86#define NFS4_ACE_SYSTEM_AUDIT_ACE_TYPE 2
87#define NFS4_ACE_SYSTEM_ALARM_ACE_TYPE 3
88
89#define ACL4_SUPPORT_ALLOW_ACL 0x01
90#define ACL4_SUPPORT_DENY_ACL 0x02
91#define ACL4_SUPPORT_AUDIT_ACL 0x04
92#define ACL4_SUPPORT_ALARM_ACL 0x08
93
94#define NFS4_ACL_AUTO_INHERIT 0x00000001
95#define NFS4_ACL_PROTECTED 0x00000002
96#define NFS4_ACL_DEFAULTED 0x00000004
97
98#define NFS4_ACE_FILE_INHERIT_ACE 0x00000001
99#define NFS4_ACE_DIRECTORY_INHERIT_ACE 0x00000002
100#define NFS4_ACE_NO_PROPAGATE_INHERIT_ACE 0x00000004
101#define NFS4_ACE_INHERIT_ONLY_ACE 0x00000008
102#define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG 0x00000010
103#define NFS4_ACE_FAILED_ACCESS_ACE_FLAG 0x00000020
104#define NFS4_ACE_IDENTIFIER_GROUP 0x00000040
105#define NFS4_ACE_INHERITED_ACE 0x00000080
106
107#define NFS4_ACE_READ_DATA 0x00000001
108#define NFS4_ACE_LIST_DIRECTORY 0x00000001
109#define NFS4_ACE_WRITE_DATA 0x00000002
110#define NFS4_ACE_ADD_FILE 0x00000002
111#define NFS4_ACE_APPEND_DATA 0x00000004
112#define NFS4_ACE_ADD_SUBDIRECTORY 0x00000004
113#define NFS4_ACE_READ_NAMED_ATTRS 0x00000008
114#define NFS4_ACE_WRITE_NAMED_ATTRS 0x00000010
115#define NFS4_ACE_EXECUTE 0x00000020
116#define NFS4_ACE_DELETE_CHILD 0x00000040
117#define NFS4_ACE_READ_ATTRIBUTES 0x00000080
118#define NFS4_ACE_WRITE_ATTRIBUTES 0x00000100
119#define NFS4_ACE_WRITE_RETENTION 0x00000200
120#define NFS4_ACE_WRITE_RETENTION_HOLD 0x00000400
121#define NFS4_ACE_DELETE 0x00010000
122#define NFS4_ACE_READ_ACL 0x00020000
123#define NFS4_ACE_WRITE_ACL 0x00040000
124#define NFS4_ACE_WRITE_OWNER 0x00080000
125#define NFS4_ACE_SYNCHRONIZE 0x00100000
126#define NFS4_ACE_GENERIC_READ 0x00120081
127#define NFS4_ACE_GENERIC_WRITE 0x00160106
128#define NFS4_ACE_GENERIC_EXECUTE 0x001200A0
129#define NFS4_ACE_MASK_ALL 0x001F01FF
130
131#define EXCHGID4_FLAG_SUPP_MOVED_REFER 0x00000001
132#define EXCHGID4_FLAG_SUPP_MOVED_MIGR 0x00000002
133#define EXCHGID4_FLAG_BIND_PRINC_STATEID 0x00000100
134
135#define EXCHGID4_FLAG_USE_NON_PNFS 0x00010000
136#define EXCHGID4_FLAG_USE_PNFS_MDS 0x00020000
137#define EXCHGID4_FLAG_USE_PNFS_DS 0x00040000
138#define EXCHGID4_FLAG_MASK_PNFS 0x00070000
139
140#define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A 0x40000000
141#define EXCHGID4_FLAG_CONFIRMED_R 0x80000000
142
143#define EXCHGID4_FLAG_SUPP_FENCE_OPS 0x00000004
144/*
145 * Since the validity of these bits depends on whether
146 * they're set in the argument or response, have separate
147 * invalid flag masks for arg (_A) and resp (_R).
148 */
149#define EXCHGID4_FLAG_MASK_A 0x40070103
150#define EXCHGID4_FLAG_MASK_R 0x80070103
151#define EXCHGID4_2_FLAG_MASK_R 0x80070107
152
153#define SEQ4_STATUS_CB_PATH_DOWN 0x00000001
154#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING 0x00000002
155#define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED 0x00000004
156#define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED 0x00000008
157#define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED 0x00000010
158#define SEQ4_STATUS_ADMIN_STATE_REVOKED 0x00000020
159#define SEQ4_STATUS_RECALLABLE_STATE_REVOKED 0x00000040
160#define SEQ4_STATUS_LEASE_MOVED 0x00000080
161#define SEQ4_STATUS_RESTART_RECLAIM_NEEDED 0x00000100
162#define SEQ4_STATUS_CB_PATH_DOWN_SESSION 0x00000200
163#define SEQ4_STATUS_BACKCHANNEL_FAULT 0x00000400
164
165#define NFS4_SECINFO_STYLE4_CURRENT_FH 0
166#define NFS4_SECINFO_STYLE4_PARENT 1
167
168#define NFS4_MAX_UINT64 (~(__u64)0)
169
170/* An NFS4 sessions server must support at least NFS4_MAX_OPS operations.
171 * If a compound requires more operations, adjust NFS4_MAX_OPS accordingly.
172 */
173#define NFS4_MAX_OPS 8
174
175/* Our NFS4 client back channel server only wants the cb_sequene and the
176 * actual operation per compound
177 */
178#define NFS4_MAX_BACK_CHANNEL_OPS 2
179
180#endif /* _UAPI_LINUX_NFS4_H */