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| author | Chuck Lever <chuck.lever@oracle.com> | 2008-08-18 19:34:16 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2008-09-29 18:13:38 -0400 |
| commit | a26cfad6e0a308a2c68df1f1ef50aabd48b17e6d (patch) | |
| tree | 9d200a635720bde73b66fd96e4db9e7ff9be3af7 /fs/Kconfig | |
| parent | 7252d575ab0e8771269a3d245c36a05ace5152bd (diff) | |
| download | lwn-a26cfad6e0a308a2c68df1f1ef50aabd48b17e6d.tar.gz lwn-a26cfad6e0a308a2c68df1f1ef50aabd48b17e6d.zip | |
SUNRPC: Support IPv6 when registering kernel RPC services
In order to advertise NFS-related services on IPv6 interfaces via
rpcbind, the kernel RPC server implementation must use
rpcb_v4_register() instead of rpcb_register().
A new kernel build option allows distributions to use the legacy
v2 call until they integrate an appropriate user-space rpcbind
daemon that can support IPv6 RPC services.
I tried adding some automatic logic to fall back if registering
with a v4 protocol request failed, but there are too many corner
cases. So I just made it a compile-time switch that distributions
can throw when they've replaced portmapper with rpcbind.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'fs/Kconfig')
| -rw-r--r-- | fs/Kconfig | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/Kconfig b/fs/Kconfig index c6ae4d4842eb..ed57a5a37250 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -1773,6 +1773,28 @@ config SUNRPC_XPRT_RDMA If unsure, say N. +config SUNRPC_REGISTER_V4 + bool "Register local RPC services via rpcbind v4 (EXPERIMENTAL)" + depends on SUNRPC && EXPERIMENTAL + default n + help + Sun added support for registering RPC services at an IPv6 + address by creating two new versions of the rpcbind protocol + (RFC 1833). + + This option enables support in the kernel RPC server for + registering kernel RPC services via version 4 of the rpcbind + protocol. If you enable this option, you must run a portmapper + daemon that supports rpcbind protocol version 4. + + Serving NFS over IPv6 from knfsd (the kernel's NFS server) + requires that you enable this option and use a portmapper that + supports rpcbind version 4. + + If unsure, say N to get traditional behavior (register kernel + RPC services using only rpcbind version 2). Distributions + using the legacy Linux portmapper daemon must say N here. + config RPCSEC_GSS_KRB5 tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)" depends on SUNRPC && EXPERIMENTAL |