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# SPDX-License-Identifier: GPL-2.0-only
config SUNRPC
tristate
depends on MULTIUSER
config SUNRPC_GSS
tristate
select OID_REGISTRY
depends on MULTIUSER
config SUNRPC_BACKCHANNEL
bool
depends on SUNRPC
config SUNRPC_SWAP
bool
depends on SUNRPC
config RPCSEC_GSS_KRB5
tristate "Secure RPC: Kerberos V mechanism"
depends on SUNRPC && CRYPTO
default y
select SUNRPC_GSS
select CRYPTO_SKCIPHER
select CRYPTO_HASH
help
Choose Y here to enable Secure RPC using the Kerberos version 5
GSS-API mechanism (RFC 1964).
Secure RPC calls with Kerberos require an auxiliary user-space
daemon which may be found in the Linux nfs-utils package
available from http://linux-nfs.org/. In addition, user-space
Kerberos support should be installed.
If unsure, say Y.
config RPCSEC_GSS_KRB5_SIMPLIFIED
bool
depends on RPCSEC_GSS_KRB5
config RPCSEC_GSS_KRB5_CRYPTOSYSTEM
bool
depends on RPCSEC_GSS_KRB5
config RPCSEC_GSS_KRB5_ENCTYPES_DES
bool "Enable Kerberos enctypes based on DES (deprecated)"
depends on RPCSEC_GSS_KRB5
depends on CRYPTO_CBC && CRYPTO_CTS && CRYPTO_ECB
depends on CRYPTO_HMAC && CRYPTO_MD5 && CRYPTO_SHA1
depends on CRYPTO_DES
default n
select RPCSEC_GSS_KRB5_SIMPLIFIED
help
Choose Y to enable the use of deprecated Kerberos 5
encryption types that utilize Data Encryption Standard
(DES) based ciphers. These include des-cbc-md5,
des-cbc-crc, and des-cbc-md4, which were deprecated by
RFC 6649, and des3-cbc-sha1, which was deprecated by RFC
8429.
These encryption types are known to be insecure, therefore
the default setting of this option is N. Support for these
encryption types is available only for compatibility with
legacy NFS client and server implementations.
Removal of support is planned for a subsequent kernel
release.
config RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA1
bool "Enable Kerberos enctypes based on AES and SHA-1"
depends on RPCSEC_GSS_KRB5
depends on CRYPTO_CBC && CRYPTO_CTS
depends on CRYPTO_HMAC && CRYPTO_SHA1
depends on CRYPTO_AES
default y
select RPCSEC_GSS_KRB5_CRYPTOSYSTEM
help
Choose Y to enable the use of Kerberos 5 encryption types
that utilize Advanced Encryption Standard (AES) ciphers and
SHA-1 digests. These include aes128-cts-hmac-sha1-96 and
aes256-cts-hmac-sha1-96.
config RPCSEC_GSS_KRB5_ENCTYPES_CAMELLIA
bool "Enable Kerberos encryption types based on Camellia and CMAC"
depends on RPCSEC_GSS_KRB5
depends on CRYPTO_CBC && CRYPTO_CTS && CRYPTO_CAMELLIA
depends on CRYPTO_CMAC
default n
select RPCSEC_GSS_KRB5_CRYPTOSYSTEM
help
Choose Y to enable the use of Kerberos 5 encryption types
that utilize Camellia ciphers (RFC 3713) and CMAC digests
(NIST Special Publication 800-38B). These include
camellia128-cts-cmac and camellia256-cts-cmac.
config RPCSEC_GSS_KRB5_ENCTYPES_AES_SHA2
bool "Enable Kerberos enctypes based on AES and SHA-2"
depends on RPCSEC_GSS_KRB5
depends on CRYPTO_CBC && CRYPTO_CTS
depends on CRYPTO_HMAC && CRYPTO_SHA256 && CRYPTO_SHA512
depends on CRYPTO_AES
default n
select RPCSEC_GSS_KRB5_CRYPTOSYSTEM
help
Choose Y to enable the use of Kerberos 5 encryption types
that utilize Advanced Encryption Standard (AES) ciphers and
SHA-2 digests. These include aes128-cts-hmac-sha256-128 and
aes256-cts-hmac-sha384-192.
config RPCSEC_GSS_KRB5_KUNIT_TEST
tristate "KUnit tests for RPCSEC GSS Kerberos" if !KUNIT_ALL_TESTS
depends on RPCSEC_GSS_KRB5 && KUNIT
default KUNIT_ALL_TESTS
help
This builds the KUnit tests for RPCSEC GSS Kerberos 5.
KUnit tests run during boot and output the results to the debug
log in TAP format (https://testanything.org/). Only useful for
kernel devs running KUnit test harness and are not for inclusion
into a production build.
For more information on KUnit and unit tests in general, refer
to the KUnit documentation in Documentation/dev-tools/kunit/.
config SUNRPC_DEBUG
bool "RPC: Enable dprintk debugging"
depends on SUNRPC && SYSCTL
select DEBUG_FS
help
This option enables a sysctl-based debugging interface
that is be used by the 'rpcdebug' utility to turn on or off
logging of different aspects of the kernel RPC activity.
Disabling this option will make your kernel slightly smaller,
but makes troubleshooting NFS issues significantly harder.
If unsure, say Y.
config SUNRPC_XPRT_RDMA
tristate "RPC-over-RDMA transport"
depends on SUNRPC && INFINIBAND && INFINIBAND_ADDR_TRANS
default SUNRPC && INFINIBAND
select SG_POOL
help
This option allows the NFS client and server to use RDMA
transports (InfiniBand, iWARP, or RoCE).
To compile this support as a module, choose M. The module
will be called rpcrdma.ko.
If unsure, or you know there is no RDMA capability on your
hardware platform, say N.
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