On Jun 19, 2009, at 2:42 PM, Jeff Layton wrote:
Here's a second pass at adding support for NFSv4 callback channels
over
IPv6. The main changes since the last set are:
1) rebase to Bruce's master/for-2.6.31 branches. It applies cleanly to
either.
2) cleaned up the IPv6-enablement patch: mostly this was done by
removing conditional compilation from several places where it wasn't
really required.
3) add patch that makes it set the sin6_scope_id for the callback
address to the same value as the sin6_scope_id in the svc_rqst-
>rq_addr.
This allows the server to call back clients that mounted the server
via
one of its link-local addresses.
The rpcbind XDR patches I'm working on provide a full universal
address 2 sockaddr conversion capability in sunrpc.ko, since several
unrelated features in NFS/NFSD/sunrpc appear to require it. I think
the server-side callback client should use this common code instead of
having its own version.
The new code is in my git repo; you should be able to pull HEAD to
have a look.
Again, tested using opensolaris and linux clients and watching the
traffic with wireshark. Everything seems to work. Delegations and
recalls work fine to opensolaris.
I seem to be having some trouble getting the server to issue
delegations
to linux clients, but I can see the callback channel being correctly
established.
I think the problem with delegations is unrelated to this set. It
seems
to still be a problem even with IPv4 on an unpatched kernel. I think
it
has something to do with how linux clients are generating open_owner
ID's. I'll email the list separately about that...
Jeff Layton (5):
nfsd: convert nfs4_callback struct to hold address in
sockaddr_storage
nfsd: break out setclientid port parsing into separate routine
nfsd: make nfs4_client->cl_addr a struct sockaddr_storage
nfsd: add support for NFSv4 callbacks over IPv6
nfsd: populate sin6_scope_id on callback address with scopeid from
rq_addr on SETCLIENTID call
fs/nfsd/nfs4callback.c | 11 +--
fs/nfsd/nfs4state.c | 221 +++++++++++++++++++++++++++++++++++
+--------
include/linux/nfsd/state.h | 6 +-
3 files changed, 189 insertions(+), 49 deletions(-)
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--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
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