1config SUNRPC 2 tristate 3 depends on MULTIUSER 4 5config SUNRPC_GSS 6 tristate 7 select OID_REGISTRY 8 depends on MULTIUSER 9 10config SUNRPC_BACKCHANNEL 11 bool 12 depends on SUNRPC 13 14config SUNRPC_SWAP 15 bool 16 depends on SUNRPC 17 18config RPCSEC_GSS_KRB5 19 tristate "Secure RPC: Kerberos V mechanism" 20 depends on SUNRPC && CRYPTO 21 depends on CRYPTO_MD5 && CRYPTO_DES && CRYPTO_CBC && CRYPTO_CTS 22 depends on CRYPTO_ECB && CRYPTO_HMAC && CRYPTO_SHA1 && CRYPTO_AES 23 depends on CRYPTO_ARC4 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 37config 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 53config 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 67config 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. 81