On Mon, Jul 13, 2009 at 10:54:26AM -0400, Chuck Lever wrote:
> PKTINFO is needed to scrape the caller's IP address off the socket so
> RPC datagram replies are routed correctly. Fill in missing pieces in
> the kernel RPC server's UDP receive path to request IPv6 PKTINFO and
> correctly parse the IPv6 cmsg header.
>
> Without this patch, kernel RPC services drop all incoming requests on
> UDP on IPv6.
Looks fine, thanks--applied for 2.6.32.
> @@ -531,16 +551,15 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
>
> rqstp->rq_prot = IPPROTO_UDP;
>
> - if (cmh->cmsg_level != IPPROTO_IP ||
> - cmh->cmsg_type != IP_PKTINFO) {
> + if (!svc_udp_get_dest_address(rqstp, cmh)) {
(Though personally I would have done this as two patches, with most of
it in a preparatory cleanup patch and the above chunk (which if I
understand right represents the only change in behavior) as the bugfix.)
--b.
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