1# SPDX-License-Identifier: GPL-2.0-only
  2config NFSD
  3	tristate "NFS server support"
  4	depends on INET
  5	depends on FILE_LOCKING
  6	depends on FSNOTIFY
  7	select LOCKD
  8	select SUNRPC
  9	select EXPORTFS
 10	select NFS_ACL_SUPPORT if NFSD_V2_ACL
 11	select NFS_ACL_SUPPORT if NFSD_V3_ACL
 12	depends on MULTIUSER
 13	help
 14	  Choose Y here if you want to allow other computers to access
 15	  files residing on this system using Sun's Network File System
 16	  protocol.  To compile the NFS server support as a module,
 17	  choose M here: the module will be called nfsd.
 18
 19	  You may choose to use a user-space NFS server instead, in which
 20	  case you can choose N here.
 21
 22	  To export local file systems using NFS, you also need to install
 23	  user space programs which can be found in the Linux nfs-utils
 24	  package, available from http://linux-nfs.org/.  More detail about
 25	  the Linux NFS server implementation is available via the
 26	  exports(5) man page.
 27
 28	  Below you can choose which versions of the NFS protocol are
 29	  available to clients mounting the NFS server on this system.
 30	  Support for NFS version 3 (RFC 1813) is always available when
 31	  CONFIG_NFSD is selected.
 32
 33	  If unsure, say N.
 34
 35config NFSD_V2
 36	bool "NFS server support for NFS version 2 (DEPRECATED)"
 37	depends on NFSD
 38	default n
 39	help
 40	  NFSv2 (RFC 1094) was the first publicly-released version of NFS.
 41	  Unless you are hosting ancient (1990's era) NFS clients, you don't
 42	  need this.
 43
 44	  If unsure, say N.
 
 
 
 
 
 45
 46config NFSD_V2_ACL
 47	bool "NFS server support for the NFSv2 ACL protocol extension"
 48	depends on NFSD_V2
 49
 50config NFSD_V3_ACL
 51	bool "NFS server support for the NFSv3 ACL protocol extension"
 52	depends on NFSD
 
 53	help
 54	  Solaris NFS servers support an auxiliary NFSv3 ACL protocol that
 55	  never became an official part of the NFS version 3 protocol.
 56	  This protocol extension allows applications on NFS clients to
 57	  manipulate POSIX Access Control Lists on files residing on NFS
 58	  servers.  NFS servers enforce POSIX ACLs on local files whether
 59	  this protocol is available or not.
 60
 61	  This option enables support in your system's NFS server for the
 62	  NFSv3 ACL protocol extension allowing NFS clients to manipulate
 63	  POSIX ACLs on files exported by your system's NFS server.  NFS
 64	  clients which support the Solaris NFSv3 ACL protocol can then
 65	  access and modify ACLs on your NFS server.
 66
 67	  To store ACLs on your NFS server, you also need to enable ACL-
 68	  related CONFIG options for your local file systems of choice.
 69
 70	  If unsure, say N.
 71
 72config NFSD_V4
 73	bool "NFS server support for NFS version 4"
 74	depends on NFSD && PROC_FS
 
 75	select FS_POSIX_ACL
 76	select SUNRPC_GSS
 77	select CRYPTO
 78	select CRYPTO_MD5
 79	select CRYPTO_SHA256
 80	select GRACE_PERIOD
 81	select NFS_V4_2_SSC_HELPER if NFS_V4_2
 82	help
 83	  This option enables support in your system's NFS server for
 84	  version 4 of the NFS protocol (RFC 3530).
 85
 86	  To export files using NFSv4, you need to install additional user
 87	  space programs which can be found in the Linux nfs-utils package,
 88	  available from http://linux-nfs.org/.
 89
 90	  If unsure, say N.
 91
 92config NFSD_PNFS
 93	bool
 94
 95config NFSD_BLOCKLAYOUT
 96	bool "NFSv4.1 server support for pNFS block layouts"
 97	depends on NFSD_V4 && BLOCK
 98	select NFSD_PNFS
 99	select EXPORTFS_BLOCK_OPS
100	help
101	  This option enables support for the exporting pNFS block layouts
102	  in the kernel's NFS server. The pNFS block layout enables NFS
103	  clients to directly perform I/O to block devices accessible to both
104	  the server and the clients.  See RFC 5663 for more details.
105
106	  If unsure, say N.
107
108config NFSD_SCSILAYOUT
109	bool "NFSv4.1 server support for pNFS SCSI layouts"
110	depends on NFSD_V4 && BLOCK
111	select NFSD_PNFS
112	select EXPORTFS_BLOCK_OPS
 
113	help
114	  This option enables support for the exporting pNFS SCSI layouts
115	  in the kernel's NFS server. The pNFS SCSI layout enables NFS
116	  clients to directly perform I/O to SCSI devices accessible to both
117	  the server and the clients.  See draft-ietf-nfsv4-scsi-layout for
118	  more details.
119
120	  If unsure, say N.
121
122config NFSD_FLEXFILELAYOUT
123	bool "NFSv4.1 server support for pNFS Flex File layouts"
124	depends on NFSD_V4
125	select NFSD_PNFS
126	help
127	  This option enables support for the exporting pNFS Flex File
128	  layouts in the kernel's NFS server. The pNFS Flex File  layout
129	  enables NFS clients to directly perform I/O to NFSv3 devices
130	  accessible to both the server and the clients.  See
131	  draft-ietf-nfsv4-flex-files for more details.
132
133	  Warning, this server implements the bare minimum functionality
134	  to be a flex file server - it is for testing the client,
135	  not for use in production.
136
137	  If unsure, say N.
138
139config NFSD_V4_2_INTER_SSC
140	bool "NFSv4.2 inter server to server COPY"
141	depends on NFSD_V4 && NFS_V4_2
142	help
143	  This option enables support for NFSv4.2 inter server to
144	  server copy where the destination server calls the NFSv4.2
145	  client to read the data to copy from the source server.
146
147	  If unsure, say N.
148
149config NFSD_V4_SECURITY_LABEL
150	bool "Provide Security Label support for NFSv4 server"
151	depends on NFSD_V4 && SECURITY
152	help
153
154	Say Y here if you want enable fine-grained security label attribute
155	support for NFS version 4.  Security labels allow security modules like
156	SELinux and Smack to label files to facilitate enforcement of their policies.
157	Without this an NFSv4 mount will have the same label on each file.
158
159	If you do not wish to enable fine-grained security labels SELinux or
160	Smack policies on NFSv4 files, say N.

  1# SPDX-License-Identifier: GPL-2.0-only
  2config NFSD
  3	tristate "NFS server support"
  4	depends on INET
  5	depends on FILE_LOCKING
  6	depends on FSNOTIFY
  7	select LOCKD
  8	select SUNRPC
  9	select EXPORTFS
 10	select NFS_ACL_SUPPORT if NFSD_V2_ACL
 
 11	depends on MULTIUSER
 12	help
 13	  Choose Y here if you want to allow other computers to access
 14	  files residing on this system using Sun's Network File System
 15	  protocol.  To compile the NFS server support as a module,
 16	  choose M here: the module will be called nfsd.
 17
 18	  You may choose to use a user-space NFS server instead, in which
 19	  case you can choose N here.
 20
 21	  To export local file systems using NFS, you also need to install
 22	  user space programs which can be found in the Linux nfs-utils
 23	  package, available from http://linux-nfs.org/.  More detail about
 24	  the Linux NFS server implementation is available via the
 25	  exports(5) man page.
 26
 27	  Below you can choose which versions of the NFS protocol are
 28	  available to clients mounting the NFS server on this system.
 29	  Support for NFS version 2 (RFC 1094) is always available when
 30	  CONFIG_NFSD is selected.
 31
 32	  If unsure, say N.
 33
 34config NFSD_V2_ACL
 35	bool
 36	depends on NFSD
 
 
 
 
 
 37
 38config NFSD_V3
 39	bool "NFS server support for NFS version 3"
 40	depends on NFSD
 41	help
 42	  This option enables support in your system's NFS server for
 43	  version 3 of the NFS protocol (RFC 1813).
 44
 45	  If unsure, say Y.
 
 
 46
 47config NFSD_V3_ACL
 48	bool "NFS server support for the NFSv3 ACL protocol extension"
 49	depends on NFSD_V3
 50	select NFSD_V2_ACL
 51	help
 52	  Solaris NFS servers support an auxiliary NFSv3 ACL protocol that
 53	  never became an official part of the NFS version 3 protocol.
 54	  This protocol extension allows applications on NFS clients to
 55	  manipulate POSIX Access Control Lists on files residing on NFS
 56	  servers.  NFS servers enforce POSIX ACLs on local files whether
 57	  this protocol is available or not.
 58
 59	  This option enables support in your system's NFS server for the
 60	  NFSv3 ACL protocol extension allowing NFS clients to manipulate
 61	  POSIX ACLs on files exported by your system's NFS server.  NFS
 62	  clients which support the Solaris NFSv3 ACL protocol can then
 63	  access and modify ACLs on your NFS server.
 64
 65	  To store ACLs on your NFS server, you also need to enable ACL-
 66	  related CONFIG options for your local file systems of choice.
 67
 68	  If unsure, say N.
 69
 70config NFSD_V4
 71	bool "NFS server support for NFS version 4"
 72	depends on NFSD && PROC_FS
 73	select NFSD_V3
 74	select FS_POSIX_ACL
 75	select SUNRPC_GSS
 
 76	select CRYPTO_MD5
 77	select CRYPTO_SHA256
 78	select GRACE_PERIOD
 
 79	help
 80	  This option enables support in your system's NFS server for
 81	  version 4 of the NFS protocol (RFC 3530).
 82
 83	  To export files using NFSv4, you need to install additional user
 84	  space programs which can be found in the Linux nfs-utils package,
 85	  available from http://linux-nfs.org/.
 86
 87	  If unsure, say N.
 88
 89config NFSD_PNFS
 90	bool
 91
 92config NFSD_BLOCKLAYOUT
 93	bool "NFSv4.1 server support for pNFS block layouts"
 94	depends on NFSD_V4 && BLOCK
 95	select NFSD_PNFS
 96	select EXPORTFS_BLOCK_OPS
 97	help
 98	  This option enables support for the exporting pNFS block layouts
 99	  in the kernel's NFS server. The pNFS block layout enables NFS
100	  clients to directly perform I/O to block devices accesible to both
101	  the server and the clients.  See RFC 5663 for more details.
102
103	  If unsure, say N.
104
105config NFSD_SCSILAYOUT
106	bool "NFSv4.1 server support for pNFS SCSI layouts"
107	depends on NFSD_V4 && BLOCK
108	select NFSD_PNFS
109	select EXPORTFS_BLOCK_OPS
110	select BLK_SCSI_REQUEST
111	help
112	  This option enables support for the exporting pNFS SCSI layouts
113	  in the kernel's NFS server. The pNFS SCSI layout enables NFS
114	  clients to directly perform I/O to SCSI devices accesible to both
115	  the server and the clients.  See draft-ietf-nfsv4-scsi-layout for
116	  more details.
117
118	  If unsure, say N.
119
120config NFSD_FLEXFILELAYOUT
121	bool "NFSv4.1 server support for pNFS Flex File layouts"
122	depends on NFSD_V4
123	select NFSD_PNFS
124	help
125	  This option enables support for the exporting pNFS Flex File
126	  layouts in the kernel's NFS server. The pNFS Flex File  layout
127	  enables NFS clients to directly perform I/O to NFSv3 devices
128	  accesible to both the server and the clients.  See
129	  draft-ietf-nfsv4-flex-files for more details.
130
131	  Warning, this server implements the bare minimum functionality
132	  to be a flex file server - it is for testing the client,
133	  not for use in production.
134
135	  If unsure, say N.
136
137config NFSD_V4_2_INTER_SSC
138	bool "NFSv4.2 inter server to server COPY"
139	depends on NFSD_V4 && NFS_V4_1 && NFS_V4_2 && NFS_FS=y
140	help
141	  This option enables support for NFSv4.2 inter server to
142	  server copy where the destination server calls the NFSv4.2
143	  client to read the data to copy from the source server.
144
145	  If unsure, say N.
146
147config NFSD_V4_SECURITY_LABEL
148	bool "Provide Security Label support for NFSv4 server"
149	depends on NFSD_V4 && SECURITY
150	help
151
152	Say Y here if you want enable fine-grained security label attribute
153	support for NFS version 4.  Security labels allow security modules like
154	SELinux and Smack to label files to facilitate enforcement of their policies.
155	Without this an NFSv4 mount will have the same label on each file.
156
157	If you do not wish to enable fine-grained security labels SELinux or
158	Smack policies on NFSv4 files, say N.
159
160config NFSD_FAULT_INJECTION
161	bool "NFS server manual fault injection"
162	depends on NFSD_V4 && DEBUG_KERNEL && DEBUG_FS && BROKEN
163	help
164	  This option enables support for manually injecting faults
165	  into the NFS server.  This is intended to be used for
166	  testing error recovery on the NFS client.
167
168	  If unsure, say N.