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| author |   Chuck Lever <chuck.lever@oracle.com> | 2009-03-18 20:46:44 -0400 |
|---|---|---|
| committer |   Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-28 15:55:18 -0400 |
| commit | 7d21c0f9845f0ce4e81baac3519fbb2c6c2cc908 (patch) | |
| tree | 8e4eefa86dfc05bfc0f36452863f55c570c82456 /net/sunrpc | |
| parent | NFS: Revert creation of IPv6 listeners for lockd and NFSv4 callbacks (diff) | |
| download | linux-dev-7d21c0f9845f0ce4e81baac3519fbb2c6c2cc908.tar.xz linux-dev-7d21c0f9845f0ce4e81baac3519fbb2c6c2cc908.zip | |
SUNRPC: Set IPV6ONLY flag on PF_INET6 RPC listener sockets
We are about to convert to using separate RPC listener sockets for
PF_INET and PF_INET6. This echoes the way IPv6 is handled in user
space by TI-RPC, and eliminates the need for ULPs to worry about
mapped IPv4 AF_INET6 addresses when doing address comparisons.
Start by setting the IPV6ONLY flag on PF_INET6 RPC listener sockets.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/svcsock.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index d00bc3307745..ac6cd65220c7 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -1144,13 +1144,11 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv, svc_tcp_init(svsk, serv); /* - * We start one listener per sv_serv. We want AF_INET - * requests to be automatically shunted to our PF_INET6 - * listener using a mapped IPv4 address. Make sure - * no-one starts an equivalent IPv4 listener, which - * would steal our incoming connections. + * If this is a PF_INET6 listener, we want to avoid + * getting requests from IPv4 remotes. Those should + * be shunted to a PF_INET listener via rpcbind. */ - val = 0; + val = 1; if (inet->sk_family == PF_INET6) kernel_setsockopt(sock, SOL_IPV6, IPV6_V6ONLY, (char *)&val, sizeof(val)); |