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_PRESERVE_UNLINKED	0x0008
49 #define NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK	0x0020
50 
51 #define NFS4_SHARE_ACCESS_MASK	0x000F
52 #define NFS4_SHARE_ACCESS_READ	0x0001
53 #define NFS4_SHARE_ACCESS_WRITE	0x0002
54 #define NFS4_SHARE_ACCESS_BOTH	0x0003
55 #define NFS4_SHARE_DENY_READ	0x0001
56 #define NFS4_SHARE_DENY_WRITE	0x0002
57 #define NFS4_SHARE_DENY_BOTH	0x0003
58 
59 /* nfs41 */
60 #define NFS4_SHARE_WANT_MASK		0xFF00
61 #define NFS4_SHARE_WANT_NO_PREFERENCE	0x0000
62 #define NFS4_SHARE_WANT_READ_DELEG	0x0100
63 #define NFS4_SHARE_WANT_WRITE_DELEG	0x0200
64 #define NFS4_SHARE_WANT_ANY_DELEG	0x0300
65 #define NFS4_SHARE_WANT_NO_DELEG	0x0400
66 #define NFS4_SHARE_WANT_CANCEL		0x0500
67 
68 #define NFS4_SHARE_WHEN_MASK		0xF0000
69 #define NFS4_SHARE_SIGNAL_DELEG_WHEN_RESRC_AVAIL	0x10000
70 #define NFS4_SHARE_PUSH_DELEG_WHEN_UNCONTENDED		0x20000
71 
72 #define NFS4_CDFC4_FORE	0x1
73 #define NFS4_CDFC4_BACK 0x2
74 #define NFS4_CDFC4_BOTH 0x3
75 #define NFS4_CDFC4_FORE_OR_BOTH 0x3
76 #define NFS4_CDFC4_BACK_OR_BOTH 0x7
77 
78 #define NFS4_CDFS4_FORE 0x1
79 #define NFS4_CDFS4_BACK 0x2
80 #define NFS4_CDFS4_BOTH 0x3
81 
82 #define NFS4_SET_TO_SERVER_TIME	0
83 #define NFS4_SET_TO_CLIENT_TIME	1
84 
85 #define NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE 0
86 #define NFS4_ACE_ACCESS_DENIED_ACE_TYPE  1
87 #define NFS4_ACE_SYSTEM_AUDIT_ACE_TYPE   2
88 #define NFS4_ACE_SYSTEM_ALARM_ACE_TYPE   3
89 
90 #define ACL4_SUPPORT_ALLOW_ACL 0x01
91 #define ACL4_SUPPORT_DENY_ACL  0x02
92 #define ACL4_SUPPORT_AUDIT_ACL 0x04
93 #define ACL4_SUPPORT_ALARM_ACL 0x08
94 
95 #define NFS4_ACL_AUTO_INHERIT 0x00000001
96 #define NFS4_ACL_PROTECTED    0x00000002
97 #define NFS4_ACL_DEFAULTED    0x00000004
98 
99 #define NFS4_ACE_FILE_INHERIT_ACE             0x00000001
100 #define NFS4_ACE_DIRECTORY_INHERIT_ACE        0x00000002
101 #define NFS4_ACE_NO_PROPAGATE_INHERIT_ACE     0x00000004
102 #define NFS4_ACE_INHERIT_ONLY_ACE             0x00000008
103 #define NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG   0x00000010
104 #define NFS4_ACE_FAILED_ACCESS_ACE_FLAG       0x00000020
105 #define NFS4_ACE_IDENTIFIER_GROUP             0x00000040
106 #define NFS4_ACE_INHERITED_ACE                0x00000080
107 
108 #define NFS4_ACE_READ_DATA                    0x00000001
109 #define NFS4_ACE_LIST_DIRECTORY               0x00000001
110 #define NFS4_ACE_WRITE_DATA                   0x00000002
111 #define NFS4_ACE_ADD_FILE                     0x00000002
112 #define NFS4_ACE_APPEND_DATA                  0x00000004
113 #define NFS4_ACE_ADD_SUBDIRECTORY             0x00000004
114 #define NFS4_ACE_READ_NAMED_ATTRS             0x00000008
115 #define NFS4_ACE_WRITE_NAMED_ATTRS            0x00000010
116 #define NFS4_ACE_EXECUTE                      0x00000020
117 #define NFS4_ACE_DELETE_CHILD                 0x00000040
118 #define NFS4_ACE_READ_ATTRIBUTES              0x00000080
119 #define NFS4_ACE_WRITE_ATTRIBUTES             0x00000100
120 #define NFS4_ACE_WRITE_RETENTION              0x00000200
121 #define NFS4_ACE_WRITE_RETENTION_HOLD         0x00000400
122 #define NFS4_ACE_DELETE                       0x00010000
123 #define NFS4_ACE_READ_ACL                     0x00020000
124 #define NFS4_ACE_WRITE_ACL                    0x00040000
125 #define NFS4_ACE_WRITE_OWNER                  0x00080000
126 #define NFS4_ACE_SYNCHRONIZE                  0x00100000
127 #define NFS4_ACE_GENERIC_READ                 0x00120081
128 #define NFS4_ACE_GENERIC_WRITE                0x00160106
129 #define NFS4_ACE_GENERIC_EXECUTE              0x001200A0
130 #define NFS4_ACE_MASK_ALL                     0x001F01FF
131 
132 #define EXCHGID4_FLAG_SUPP_MOVED_REFER		0x00000001
133 #define EXCHGID4_FLAG_SUPP_MOVED_MIGR		0x00000002
134 #define EXCHGID4_FLAG_BIND_PRINC_STATEID	0x00000100
135 
136 #define EXCHGID4_FLAG_USE_NON_PNFS		0x00010000
137 #define EXCHGID4_FLAG_USE_PNFS_MDS		0x00020000
138 #define EXCHGID4_FLAG_USE_PNFS_DS		0x00040000
139 #define EXCHGID4_FLAG_MASK_PNFS			0x00070000
140 
141 #define EXCHGID4_FLAG_UPD_CONFIRMED_REC_A	0x40000000
142 #define EXCHGID4_FLAG_CONFIRMED_R		0x80000000
143 
144 #define EXCHGID4_FLAG_SUPP_FENCE_OPS		0x00000004
145 /*
146  * Since the validity of these bits depends on whether
147  * they're set in the argument or response, have separate
148  * invalid flag masks for arg (_A) and resp (_R).
149  */
150 #define EXCHGID4_FLAG_MASK_A			0x40070103
151 #define EXCHGID4_FLAG_MASK_R			0x80070103
152 #define EXCHGID4_2_FLAG_MASK_R			0x80070107
153 
154 #define SEQ4_STATUS_CB_PATH_DOWN		0x00000001
155 #define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRING	0x00000002
156 #define SEQ4_STATUS_CB_GSS_CONTEXTS_EXPIRED	0x00000004
157 #define SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED	0x00000008
158 #define SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED	0x00000010
159 #define SEQ4_STATUS_ADMIN_STATE_REVOKED		0x00000020
160 #define SEQ4_STATUS_RECALLABLE_STATE_REVOKED	0x00000040
161 #define SEQ4_STATUS_LEASE_MOVED			0x00000080
162 #define SEQ4_STATUS_RESTART_RECLAIM_NEEDED	0x00000100
163 #define SEQ4_STATUS_CB_PATH_DOWN_SESSION	0x00000200
164 #define SEQ4_STATUS_BACKCHANNEL_FAULT		0x00000400
165 
166 #define NFS4_SECINFO_STYLE4_CURRENT_FH	0
167 #define NFS4_SECINFO_STYLE4_PARENT	1
168 
169 #define NFS4_MAX_UINT64	(~(__u64)0)
170 
171 /* An NFS4 sessions server must support at least NFS4_MAX_OPS operations.
172  * If a compound requires more operations, adjust NFS4_MAX_OPS accordingly.
173  */
174 #define NFS4_MAX_OPS   8
175 
176 /* Our NFS4 client back channel server only wants the cb_sequene and the
177  * actual operation per compound
178  */
179 #define NFS4_MAX_BACK_CHANNEL_OPS 2
180 
181 #endif /* _UAPI_LINUX_NFS4_H */
182