xref: /openbmc/linux/fs/nfsd/Kconfig (revision ba61bb17)
1config NFSD
2	tristate "NFS server support"
3	depends on INET
4	depends on FILE_LOCKING
5	select LOCKD
6	select SUNRPC
7	select EXPORTFS
8	select NFS_ACL_SUPPORT if NFSD_V2_ACL
9	depends on MULTIUSER
10	help
11	  Choose Y here if you want to allow other computers to access
12	  files residing on this system using Sun's Network File System
13	  protocol.  To compile the NFS server support as a module,
14	  choose M here: the module will be called nfsd.
15
16	  You may choose to use a user-space NFS server instead, in which
17	  case you can choose N here.
18
19	  To export local file systems using NFS, you also need to install
20	  user space programs which can be found in the Linux nfs-utils
21	  package, available from http://linux-nfs.org/.  More detail about
22	  the Linux NFS server implementation is available via the
23	  exports(5) man page.
24
25	  Below you can choose which versions of the NFS protocol are
26	  available to clients mounting the NFS server on this system.
27	  Support for NFS version 2 (RFC 1094) is always available when
28	  CONFIG_NFSD is selected.
29
30	  If unsure, say N.
31
32config NFSD_V2_ACL
33	bool
34	depends on NFSD
35
36config NFSD_V3
37	bool "NFS server support for NFS version 3"
38	depends on NFSD
39	help
40	  This option enables support in your system's NFS server for
41	  version 3 of the NFS protocol (RFC 1813).
42
43	  If unsure, say Y.
44
45config NFSD_V3_ACL
46	bool "NFS server support for the NFSv3 ACL protocol extension"
47	depends on NFSD_V3
48	select NFSD_V2_ACL
49	help
50	  Solaris NFS servers support an auxiliary NFSv3 ACL protocol that
51	  never became an official part of the NFS version 3 protocol.
52	  This protocol extension allows applications on NFS clients to
53	  manipulate POSIX Access Control Lists on files residing on NFS
54	  servers.  NFS servers enforce POSIX ACLs on local files whether
55	  this protocol is available or not.
56
57	  This option enables support in your system's NFS server for the
58	  NFSv3 ACL protocol extension allowing NFS clients to manipulate
59	  POSIX ACLs on files exported by your system's NFS server.  NFS
60	  clients which support the Solaris NFSv3 ACL protocol can then
61	  access and modify ACLs on your NFS server.
62
63	  To store ACLs on your NFS server, you also need to enable ACL-
64	  related CONFIG options for your local file systems of choice.
65
66	  If unsure, say N.
67
68config NFSD_V4
69	bool "NFS server support for NFS version 4"
70	depends on NFSD && PROC_FS
71	select NFSD_V3
72	select FS_POSIX_ACL
73	select SUNRPC_GSS
74	select CRYPTO
75	select GRACE_PERIOD
76	help
77	  This option enables support in your system's NFS server for
78	  version 4 of the NFS protocol (RFC 3530).
79
80	  To export files using NFSv4, you need to install additional user
81	  space programs which can be found in the Linux nfs-utils package,
82	  available from http://linux-nfs.org/.
83
84	  If unsure, say N.
85
86config NFSD_PNFS
87	bool
88
89config NFSD_BLOCKLAYOUT
90	bool "NFSv4.1 server support for pNFS block layouts"
91	depends on NFSD_V4 && BLOCK
92	select NFSD_PNFS
93	select EXPORTFS_BLOCK_OPS
94	help
95	  This option enables support for the exporting pNFS block layouts
96	  in the kernel's NFS server. The pNFS block layout enables NFS
97	  clients to directly perform I/O to block devices accesible to both
98	  the server and the clients.  See RFC 5663 for more details.
99
100	  If unsure, say N.
101
102config NFSD_SCSILAYOUT
103	bool "NFSv4.1 server support for pNFS SCSI layouts"
104	depends on NFSD_V4 && BLOCK
105	select NFSD_PNFS
106	select EXPORTFS_BLOCK_OPS
107	select BLK_SCSI_REQUEST
108	help
109	  This option enables support for the exporting pNFS SCSI layouts
110	  in the kernel's NFS server. The pNFS SCSI layout enables NFS
111	  clients to directly perform I/O to SCSI devices accesible to both
112	  the server and the clients.  See draft-ietf-nfsv4-scsi-layout for
113	  more details.
114
115	  If unsure, say N.
116
117config NFSD_FLEXFILELAYOUT
118	bool "NFSv4.1 server support for pNFS Flex File layouts"
119	depends on NFSD_V4
120	select NFSD_PNFS
121	help
122	  This option enables support for the exporting pNFS Flex File
123	  layouts in the kernel's NFS server. The pNFS Flex File  layout
124	  enables NFS clients to directly perform I/O to NFSv3 devices
125	  accesible to both the server and the clients.  See
126	  draft-ietf-nfsv4-flex-files for more details.
127
128	  Warning, this server implements the bare minimum functionality
129	  to be a flex file server - it is for testing the client,
130	  not for use in production.
131
132	  If unsure, say N.
133
134config NFSD_V4_SECURITY_LABEL
135	bool "Provide Security Label support for NFSv4 server"
136	depends on NFSD_V4 && SECURITY
137	help
138
139	Say Y here if you want enable fine-grained security label attribute
140	support for NFS version 4.  Security labels allow security modules like
141	SELinux and Smack to label files to facilitate enforcement of their policies.
142	Without this an NFSv4 mount will have the same label on each file.
143
144	If you do not wish to enable fine-grained security labels SELinux or
145	Smack policies on NFSv4 files, say N.
146
147config NFSD_FAULT_INJECTION
148	bool "NFS server manual fault injection"
149	depends on NFSD_V4 && DEBUG_KERNEL && DEBUG_FS
150	help
151	  This option enables support for manually injecting faults
152	  into the NFS server.  This is intended to be used for
153	  testing error recovery on the NFS client.
154
155	  If unsure, say N.
156