On Mon, 2009-03-30 at 18:37 -0400, Trond Myklebust wrote:
> I'm testing a fix right now...
Here is the patch that was tested. With it applied, I see the listeners
come up correctly, and locking appears to work as expected.
Cheers
Trond
--------------------------------------------------------------------
>From e13a5357ab5961844e64ec4ade6e4e13bfc33355 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
Date: Mon, 30 Mar 2009 18:59:17 -0400
Subject: [PATCH] SUNRPC: Ensure IPV6_V6ONLY is set on the socket before binding to a port
Also ensure that we use the protocol family instead of the address
family when calling sock_create_kern().
Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
net/sunrpc/svcsock.c | 36 ++++++++++++++++++++++++------------
1 files changed, 24 insertions(+), 12 deletions(-)
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index ac6cd65..9d50423 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -1110,7 +1110,6 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
struct svc_sock *svsk;
struct sock *inet;
int pmap_register = !(flags & SVC_SOCK_ANONYMOUS);
- int val;
dprintk("svc: svc_setup_socket %p\n", sock);
if (!(svsk = kzalloc(sizeof(*svsk), GFP_KERNEL))) {
@@ -1143,16 +1142,6 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv,
else
svc_tcp_init(svsk, serv);
- /*
- * 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 = 1;
- if (inet->sk_family == PF_INET6)
- kernel_setsockopt(sock, SOL_IPV6, IPV6_V6ONLY,
- (char *)&val, sizeof(val));
-
dprintk("svc: svc_setup_socket created %p (inet %p)\n",
svsk, svsk->sk_sk);
@@ -1220,6 +1209,8 @@ static struct svc_xprt *svc_create_socket(struct svc_serv *serv,
struct sockaddr_storage addr;
struct sockaddr *newsin = (struct sockaddr *)&addr;
int newlen;
+ int family;
+ int val;
RPC_IFDEBUG(char buf[RPC_MAX_ADDRBUFLEN]);
dprintk("svc: svc_create_socket(%s, %d, %s)\n",
@@ -1231,14 +1222,35 @@ static struct svc_xprt *svc_create_socket(struct svc_serv *serv,
"sockets supported\n");
return ERR_PTR(-EINVAL);
}
+
type = (protocol == IPPROTO_UDP)? SOCK_DGRAM : SOCK_STREAM;
+ switch (sin->sa_family) {
+ case AF_INET6:
+ family = PF_INET6;
+ break;
+ case AF_INET:
+ family = PF_INET;
+ break;
+ default:
+ return ERR_PTR(-EINVAL);
+ }
- error = sock_create_kern(sin->sa_family, type, protocol, &sock);
+ error = sock_create_kern(family, type, protocol, &sock);
if (error < 0)
return ERR_PTR(error);
svc_reclassify_socket(sock);
+ /*
+ * If this is an PF_INET6 listener, we want to avoid
+ * getting requests from IPv4 remotes. Those should
+ * be shunted to a PF_INET listener via rpcbind.
+ */
+ val = 1;
+ if (family == PF_INET6)
+ kernel_setsockopt(sock, SOL_IPV6, IPV6_V6ONLY,
+ (char *)&val, sizeof(val));
+
if (type == SOCK_STREAM)
sock->sk->sk_reuse = 1; /* allow address reuse */
error = kernel_bind(sock, sin, len);
--
1.6.0.4
--
Trond Myklebust
Linux NFS client maintainer
NetApp
Trond.Myklebust@xxxxxxxxxx
www.netapp.com
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