# SPDX-License-Identifier: GPL-2.0-only
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config SUNRPC
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tristate
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depends on MULTIUSER
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config SUNRPC_GSS
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tristate
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select OID_REGISTRY
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depends on MULTIUSER
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config SUNRPC_BACKCHANNEL
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bool
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depends on SUNRPC
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config SUNRPC_SWAP
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bool
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depends on SUNRPC
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config RPCSEC_GSS_KRB5
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tristate "Secure RPC: Kerberos V mechanism"
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depends on SUNRPC && CRYPTO
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depends on CRYPTO_MD5 && CRYPTO_DES && CRYPTO_CBC && CRYPTO_CTS
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depends on CRYPTO_ECB && CRYPTO_HMAC && CRYPTO_SHA1 && CRYPTO_AES
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default y
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select SUNRPC_GSS
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help
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Choose Y here to enable Secure RPC using the Kerberos version 5
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GSS-API mechanism (RFC 1964).
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Secure RPC calls with Kerberos require an auxiliary user-space
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daemon which may be found in the Linux nfs-utils package
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available from http://linux-nfs.org/. In addition, user-space
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Kerberos support should be installed.
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If unsure, say Y.
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config SUNRPC_DISABLE_INSECURE_ENCTYPES
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bool "Secure RPC: Disable insecure Kerberos encryption types"
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depends on RPCSEC_GSS_KRB5
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default n
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help
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Choose Y here to disable the use of deprecated encryption types
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with the Kerberos version 5 GSS-API mechanism (RFC 1964). The
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deprecated encryption types include DES-CBC-MD5, DES-CBC-CRC,
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and DES-CBC-MD4. These types were deprecated by RFC 6649 because
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they were found to be insecure.
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N is the default because many sites have deployed KDCs and
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keytabs that contain only these deprecated encryption types.
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Choosing Y prevents the use of known-insecure encryption types
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but might result in compatibility problems.
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config SUNRPC_DEBUG
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bool "RPC: Enable dprintk debugging"
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depends on SUNRPC && SYSCTL
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select DEBUG_FS
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help
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This option enables a sysctl-based debugging interface
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that is be used by the 'rpcdebug' utility to turn on or off
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logging of different aspects of the kernel RPC activity.
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Disabling this option will make your kernel slightly smaller,
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but makes troubleshooting NFS issues significantly harder.
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If unsure, say Y.
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config SUNRPC_XPRT_RDMA
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tristate "RPC-over-RDMA transport"
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depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS
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default SUNRPC && INFINIBAND
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select SG_POOL
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help
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This option allows the NFS client and server to use RDMA
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transports (InfiniBand, iWARP, or RoCE).
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To compile this support as a module, choose M. The module
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will be called rpcrdma.ko.
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If unsure, or you know there is no RDMA capability on your
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hardware platform, say N.
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