net/sunrpc/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0-only
   2 config SUNRPC
   3         tristate
   4         depends on MULTIUSER
   5
   6 config SUNRPC_GSS
   7         tristate
   8         select OID_REGISTRY
   9         depends on MULTIUSER
  10
  11 config SUNRPC_BACKCHANNEL
  12         bool
  13         depends on SUNRPC
  14
  15 config SUNRPC_SWAP
  16         bool
  17         depends on SUNRPC
  18
  19 config RPCSEC_GSS_KRB5
  20         tristate "Secure RPC: Kerberos V mechanism"
  21         depends on SUNRPC && CRYPTO
  22         depends on CRYPTO_MD5 && CRYPTO_DES && CRYPTO_CBC && CRYPTO_CTS
  23         depends on CRYPTO_ECB && CRYPTO_HMAC && CRYPTO_SHA1 && CRYPTO_AES
  24         default y
  25         select SUNRPC_GSS
  26         help
  27           Choose Y here to enable Secure RPC using the Kerberos version 5
  28           GSS-API mechanism (RFC 1964).
  29
  30           Secure RPC calls with Kerberos require an auxiliary user-space
  31           daemon which may be found in the Linux nfs-utils package
  32           available from http://linux-nfs.org/.  In addition, user-space
  33           Kerberos support should be installed.
  34
  35           If unsure, say Y.
  36
  37 config SUNRPC_DISABLE_INSECURE_ENCTYPES
  38         bool "Secure RPC: Disable insecure Kerberos encryption types"
  39         depends on RPCSEC_GSS_KRB5
  40         default n
  41         help
  42           Choose Y here to disable the use of deprecated encryption types
  43           with the Kerberos version 5 GSS-API mechanism (RFC 1964). The
  44           deprecated encryption types include DES-CBC-MD5, DES-CBC-CRC,
  45           and DES-CBC-MD4. These types were deprecated by RFC 6649 because
  46           they were found to be insecure.
  47
  48           N is the default because many sites have deployed KDCs and
  49           keytabs that contain only these deprecated encryption types.
  50           Choosing Y prevents the use of known-insecure encryption types
  51           but might result in compatibility problems.
  52
  53 config SUNRPC_DEBUG
  54         bool "RPC: Enable dprintk debugging"
  55         depends on SUNRPC && SYSCTL
  56         select DEBUG_FS
  57         help
  58           This option enables a sysctl-based debugging interface
  59           that is be used by the 'rpcdebug' utility to turn on or off
  60           logging of different aspects of the kernel RPC activity.
  61
  62           Disabling this option will make your kernel slightly smaller,
  63           but makes troubleshooting NFS issues significantly harder.
  64
  65           If unsure, say Y.
  66
  67 config SUNRPC_XPRT_RDMA
  68         tristate "RPC-over-RDMA transport"
  69         depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS
  70         default SUNRPC && INFINIBAND
  71         select SG_POOL
  72         help
  73           This option allows the NFS client and server to use RDMA
  74           transports (InfiniBand, iWARP, or RoCE).
  75
  76           To compile this support as a module, choose M. The module
  77           will be called rpcrdma.ko.
  78
  79           If unsure, or you know there is no RDMA capability on your
  80           hardware platform, say N.