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         depends on CRYPTO_ARC4
  25         default y
  26         select SUNRPC_GSS
  27         help
  28           Choose Y here to enable Secure RPC using the Kerberos version 5
  29           GSS-API mechanism (RFC 1964).
  30
  31           Secure RPC calls with Kerberos require an auxiliary user-space
  32           daemon which may be found in the Linux nfs-utils package
  33           available from http://linux-nfs.org/.  In addition, user-space
  34           Kerberos support should be installed.
  35
  36           If unsure, say Y.
  37
  38 config SUNRPC_DISABLE_INSECURE_ENCTYPES
  39         bool "Secure RPC: Disable insecure Kerberos encryption types"
  40         depends on RPCSEC_GSS_KRB5
  41         default n
  42         help
  43           Choose Y here to disable the use of deprecated encryption types
  44           with the Kerberos version 5 GSS-API mechanism (RFC 1964). The
  45           deprecated encryption types include DES-CBC-MD5, DES-CBC-CRC,
  46           and DES-CBC-MD4. These types were deprecated by RFC 6649 because
  47           they were found to be insecure.
  48
  49           N is the default because many sites have deployed KDCs and
  50           keytabs that contain only these deprecated encryption types.
  51           Choosing Y prevents the use of known-insecure encryption types
  52           but might result in compatibility problems.
  53
  54 config SUNRPC_DEBUG
  55         bool "RPC: Enable dprintk debugging"
  56         depends on SUNRPC && SYSCTL
  57         select DEBUG_FS
  58         help
  59           This option enables a sysctl-based debugging interface
  60           that is be used by the 'rpcdebug' utility to turn on or off
  61           logging of different aspects of the kernel RPC activity.
  62
  63           Disabling this option will make your kernel slightly smaller,
  64           but makes troubleshooting NFS issues significantly harder.
  65
  66           If unsure, say Y.
  67
  68 config SUNRPC_XPRT_RDMA
  69         tristate "RPC-over-RDMA transport"
  70         depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS
  71         default SUNRPC && INFINIBAND
  72         select SG_POOL
  73         help
  74           This option allows the NFS client and server to use RDMA
  75           transports (InfiniBand, iWARP, or RoCE).
  76
  77           To compile this support as a module, choose M. The module
  78           will be called rpcrdma.ko.
  79
  80           If unsure, or you know there is no RDMA capability on your
  81           hardware platform, say N.