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authorRoopa Prabhu <roopa@cumulusnetworks.com>2015-07-30 13:34:53 -0700
committerDavid S. Miller <davem@davemloft.net>2015-07-31 15:21:30 -0700
commit343d60aada5a358ca186d6e9e353230379c426d8 (patch)
tree1cd1a42dc4fcab67bb614649d385ace0c0a3f7a2 /net/ipv6/addrconf_core.c
parentbpf: add helpers to access tunnel metadata (diff)
downloadlinux-dev-343d60aada5a358ca186d6e9e353230379c426d8.tar.xz
linux-dev-343d60aada5a358ca186d6e9e353230379c426d8.zip
ipv6: change ipv6_stub_impl.ipv6_dst_lookup to take net argument
This patch adds net argument to ipv6_stub_impl.ipv6_dst_lookup for use cases where sk is not available (like mpls). sk appears to be needed to get the namespace 'net' and is optional otherwise. This patch series changes ipv6_stub_impl.ipv6_dst_lookup to take net argument. sk remains optional. All callers of ipv6_stub_impl.ipv6_dst_lookup have been modified to pass net. I have modified them to use already available 'net' in the scope of the call. I can change them to sock_net(sk) to avoid any unintended change in behaviour if sock namespace is different. They dont seem to be from code inspection. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrconf_core.c')
-rw-r--r--net/ipv6/addrconf_core.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
index ca09bf49ac68..bfa941fc1165 100644
--- a/net/ipv6/addrconf_core.c
+++ b/net/ipv6/addrconf_core.c
@@ -107,7 +107,16 @@ int inet6addr_notifier_call_chain(unsigned long val, void *v)
}
EXPORT_SYMBOL(inet6addr_notifier_call_chain);
-const struct ipv6_stub *ipv6_stub __read_mostly;
+static int eafnosupport_ipv6_dst_lookup(struct net *net, struct sock *u1,
+ struct dst_entry **u2,
+ struct flowi6 *u3)
+{
+ return -EAFNOSUPPORT;
+}
+
+const struct ipv6_stub *ipv6_stub __read_mostly = &(struct ipv6_stub) {
+ .ipv6_dst_lookup = eafnosupport_ipv6_dst_lookup,
+};
EXPORT_SYMBOL_GPL(ipv6_stub);
/* IPv6 Wildcard Address and Loopback Address defined by RFC2553 */