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authorDavid Ahern <dsa@cumulusnetworks.com>2016-06-17 02:24:25 +0300
committerDavid S. Miller <davem@davemloft.net>2016-06-18 07:25:29 +0300
commit0d240e7811c4ec1965760ee4643b5bbc9cfacbb3 (patch)
tree8bdf0d3d57832b40568424b1d03bbc0cd51f39a1 /include/net/l3mdev.h
parenta2e2ff560f5113e8ca31432fbd985f5f1889efdc (diff)
downloadlinux-0d240e7811c4ec1965760ee4643b5bbc9cfacbb3.tar.xz
net: vrf: Implement get_saddr for IPv6
IPv6 source address selection needs to consider the real egress route. Similar to IPv4 implement a get_saddr6 method which is called if source address has not been set. The get_saddr6 method does a full lookup which means pulling a route from the VRF FIB table and properly considering linklocal/multicast destination addresses. Lookup failures (eg., unreachable) then cause the source address selection to fail which gets propagated back to the caller. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/l3mdev.h')
-rw-r--r--include/net/l3mdev.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/net/l3mdev.h b/include/net/l3mdev.h
index f8a416ec674c..818fd4f100fc 100644
--- a/include/net/l3mdev.h
+++ b/include/net/l3mdev.h
@@ -39,6 +39,9 @@ struct l3mdev_ops {
/* IPv6 ops */
struct dst_entry * (*l3mdev_get_rt6_dst)(const struct net_device *dev,
struct flowi6 *fl6);
+ int (*l3mdev_get_saddr6)(struct net_device *dev,
+ const struct sock *sk,
+ struct flowi6 *fl6);
};
#ifdef CONFIG_NET_L3_MASTER_DEV
@@ -140,6 +143,8 @@ static inline bool netif_index_is_l3_master(struct net *net, int ifindex)
int l3mdev_get_saddr(struct net *net, int ifindex, struct flowi4 *fl4);
struct dst_entry *l3mdev_get_rt6_dst(struct net *net, struct flowi6 *fl6);
+int l3mdev_get_saddr6(struct net *net, const struct sock *sk,
+ struct flowi6 *fl6);
static inline
struct sk_buff *l3mdev_l3_rcv(struct sk_buff *skb, u16 proto)
@@ -230,6 +235,12 @@ struct dst_entry *l3mdev_get_rt6_dst(struct net *net, struct flowi6 *fl6)
return NULL;
}
+static inline int l3mdev_get_saddr6(struct net *net, const struct sock *sk,
+ struct flowi6 *fl6)
+{
+ return 0;
+}
+
static inline
struct sk_buff *l3mdev_ip_rcv(struct sk_buff *skb)
{