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- # SPDX-License-Identifier: GPL-2.0-only
- config NFSD
- tristate "NFS server support"
- depends on INET
- depends on FILE_LOCKING
- depends on FSNOTIFY
- select LOCKD
- select SUNRPC
- select EXPORTFS
- select NFS_ACL_SUPPORT if NFSD_V2_ACL
- depends on MULTIUSER
- help
- Choose Y here if you want to allow other computers to access
- files residing on this system using Sun's Network File System
- protocol. To compile the NFS server support as a module,
- choose M here: the module will be called nfsd.
- You may choose to use a user-space NFS server instead, in which
- case you can choose N here.
- To export local file systems using NFS, you also need to install
- user space programs which can be found in the Linux nfs-utils
- package, available from http://linux-nfs.org/. More detail about
- the Linux NFS server implementation is available via the
- exports(5) man page.
- Below you can choose which versions of the NFS protocol are
- available to clients mounting the NFS server on this system.
- Support for NFS version 2 (RFC 1094) is always available when
- CONFIG_NFSD is selected.
- If unsure, say N.
- config NFSD_V2_ACL
- bool
- depends on NFSD
- config NFSD_V3_ACL
- bool "NFS server support for the NFSv3 ACL protocol extension"
- depends on NFSD
- select NFSD_V2_ACL
- help
- Solaris NFS servers support an auxiliary NFSv3 ACL protocol that
- never became an official part of the NFS version 3 protocol.
- This protocol extension allows applications on NFS clients to
- manipulate POSIX Access Control Lists on files residing on NFS
- servers. NFS servers enforce POSIX ACLs on local files whether
- this protocol is available or not.
- This option enables support in your system's NFS server for the
- NFSv3 ACL protocol extension allowing NFS clients to manipulate
- POSIX ACLs on files exported by your system's NFS server. NFS
- clients which support the Solaris NFSv3 ACL protocol can then
- access and modify ACLs on your NFS server.
- To store ACLs on your NFS server, you also need to enable ACL-
- related CONFIG options for your local file systems of choice.
- If unsure, say N.
- config NFSD_V4
- bool "NFS server support for NFS version 4"
- depends on NFSD && PROC_FS
- select FS_POSIX_ACL
- select SUNRPC_GSS
- select CRYPTO
- select CRYPTO_MD5
- select CRYPTO_SHA256
- select GRACE_PERIOD
- select NFS_V4_2_SSC_HELPER if NFS_V4_2
- help
- This option enables support in your system's NFS server for
- version 4 of the NFS protocol (RFC 3530).
- To export files using NFSv4, you need to install additional user
- space programs which can be found in the Linux nfs-utils package,
- available from http://linux-nfs.org/.
- If unsure, say N.
- config NFSD_PNFS
- bool
- config NFSD_BLOCKLAYOUT
- bool "NFSv4.1 server support for pNFS block layouts"
- depends on NFSD_V4 && BLOCK
- select NFSD_PNFS
- select EXPORTFS_BLOCK_OPS
- help
- This option enables support for the exporting pNFS block layouts
- in the kernel's NFS server. The pNFS block layout enables NFS
- clients to directly perform I/O to block devices accessible to both
- the server and the clients. See RFC 5663 for more details.
- If unsure, say N.
- config NFSD_SCSILAYOUT
- bool "NFSv4.1 server support for pNFS SCSI layouts"
- depends on NFSD_V4 && BLOCK
- select NFSD_PNFS
- select EXPORTFS_BLOCK_OPS
- help
- This option enables support for the exporting pNFS SCSI layouts
- in the kernel's NFS server. The pNFS SCSI layout enables NFS
- clients to directly perform I/O to SCSI devices accessible to both
- the server and the clients. See draft-ietf-nfsv4-scsi-layout for
- more details.
- If unsure, say N.
- config NFSD_FLEXFILELAYOUT
- bool "NFSv4.1 server support for pNFS Flex File layouts"
- depends on NFSD_V4
- select NFSD_PNFS
- help
- This option enables support for the exporting pNFS Flex File
- layouts in the kernel's NFS server. The pNFS Flex File layout
- enables NFS clients to directly perform I/O to NFSv3 devices
- accessible to both the server and the clients. See
- draft-ietf-nfsv4-flex-files for more details.
- Warning, this server implements the bare minimum functionality
- to be a flex file server - it is for testing the client,
- not for use in production.
- If unsure, say N.
- config NFSD_V4_2_INTER_SSC
- bool "NFSv4.2 inter server to server COPY"
- depends on NFSD_V4 && NFS_V4_2
- help
- This option enables support for NFSv4.2 inter server to
- server copy where the destination server calls the NFSv4.2
- client to read the data to copy from the source server.
- If unsure, say N.
- config NFSD_V4_SECURITY_LABEL
- bool "Provide Security Label support for NFSv4 server"
- depends on NFSD_V4 && SECURITY
- help
- Say Y here if you want enable fine-grained security label attribute
- support for NFS version 4. Security labels allow security modules like
- SELinux and Smack to label files to facilitate enforcement of their policies.
- Without this an NFSv4 mount will have the same label on each file.
- If you do not wish to enable fine-grained security labels SELinux or
- Smack policies on NFSv4 files, say N.
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