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authorTrond Myklebust <Trond.Myklebust@netapp.com>2009-03-30 18:59:17 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2009-04-01 13:24:29 -0400
commitc69da774b28e01e062e0a3aba7509f2dcfd2a11a (patch)
treee406bb8055548fcfcd3796881c263fe44dc69443 /net
parentad5b365c1266b0c9e8e254a3c1cc4ef66bf33cba (diff)
downloadlinux-2.6.38-lt-ux500-c69da774b28e01e062e0a3aba7509f2dcfd2a11a.tar.gz
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@netapp.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/svcsock.c36
1 files changed, 24 insertions, 12 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index ac6cd65220c..9d504234af4 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);