diff options
Diffstat (limited to 'fs/nfsd/Kconfig')
| -rw-r--r-- | fs/nfsd/Kconfig | 132 |
1 files changed, 106 insertions, 26 deletions
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig index dc8f1ef665ce..0b5c1a0bf1cf 100644 --- a/fs/nfsd/Kconfig +++ b/fs/nfsd/Kconfig @@ -1,11 +1,19 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFSD tristate "NFS server support" depends on INET depends on FILE_LOCKING + depends on FSNOTIFY + select CRC32 + select CRYPTO_LIB_MD5 if NFSD_LEGACY_CLIENT_TRACKING + select CRYPTO_LIB_SHA256 if NFSD_V4 select LOCKD select SUNRPC select EXPORTFS + select NFS_COMMON select NFS_ACL_SUPPORT if NFSD_V2_ACL + select NFS_ACL_SUPPORT if NFSD_V3_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 @@ -23,28 +31,29 @@ config NFSD 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 + Support for NFS version 3 (RFC 1813) is always available when CONFIG_NFSD is selected. If unsure, say N. -config NFSD_V2_ACL - bool - depends on NFSD - -config NFSD_V3 - bool "NFS server support for NFS version 3" +config NFSD_V2 + bool "NFS server support for NFS version 2 (DEPRECATED)" depends on NFSD + default n help - This option enables support in your system's NFS server for - version 3 of the NFS protocol (RFC 1813). + NFSv2 (RFC 1094) was the first publicly-released version of NFS. + Unless you are hosting ancient (1990's era) NFS clients, you don't + need this. + + If unsure, say N. - If unsure, say Y. +config NFSD_V2_ACL + bool "NFS server support for the NFSv2 ACL protocol extension" + depends on NFSD_V2 config NFSD_V3_ACL bool "NFS server support for the NFSv3 ACL protocol extension" - depends on NFSD_V3 - select NFSD_V2_ACL + depends on NFSD help Solaris NFS servers support an auxiliary NFSv3 ACL protocol that never became an official part of the NFS version 3 protocol. @@ -67,10 +76,11 @@ config NFSD_V3_ACL config NFSD_V4 bool "NFS server support for NFS version 4" depends on NFSD && PROC_FS - select NFSD_V3 select FS_POSIX_ACL - select SUNRPC_GSS - select CRYPTO + select RPCSEC_GSS_KRB5 + select CRYPTO # required by RPCSEC_GSS_KRB5 + 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). @@ -81,6 +91,63 @@ config NFSD_V4 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 @@ -94,15 +161,28 @@ config NFSD_V4_SECURITY_LABEL If you do not wish to enable fine-grained security labels SELinux or Smack policies on NFSv4 files, say N. - WARNING: there is still a chance of backwards-incompatible protocol changes. - For now we recommend "Y" only for developers and testers." - -config NFSD_FAULT_INJECTION - bool "NFS server manual fault injection" - depends on NFSD_V4 && DEBUG_KERNEL +config NFSD_LEGACY_CLIENT_TRACKING + bool "Support legacy NFSv4 client tracking methods (DEPRECATED)" + depends on NFSD_V4 + default n help - This option enables support for manually injecting faults - into the NFS server. This is intended to be used for - testing error recovery on the NFS client. - - If unsure, say N. + The NFSv4 server needs to store a small amount of information on + stable storage in order to handle state recovery after reboot. Most + modern deployments upcall to a userland daemon for this (nfsdcld), + but older NFS servers may store information directly in a + recoverydir, or spawn a process directly using a usermodehelper + upcall. + + These legacy client tracking methods have proven to be problematic + and will be removed in the future. Say Y here if you need support + for them in the interim. + +config NFSD_V4_DELEG_TIMESTAMPS + bool "Support delegated timestamps" + depends on NFSD_V4 + default n + help + NFSD implements delegated timestamps according to + draft-ietf-nfsv4-delstid-08 "Extending the Opening of Files". This + is currently an experimental feature and is therefore left disabled + by default. |