xfrm: Use VRF master index if output device is enslaved
Directs route lookups to VRF table. Compiles out if NET_VRF is not
enabled. With this patch able to successfully bring up ipsec tunnels
in VRFs, even with duplicate network configuration.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 55b3c0f4..bb919b2 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -15,6 +15,7 @@
#include <net/dst.h>
#include <net/xfrm.h>
#include <net/ip.h>
+#include <net/vrf.h>
static struct xfrm_policy_afinfo xfrm4_policy_afinfo;
@@ -107,8 +108,10 @@
struct flowi4 *fl4 = &fl->u.ip4;
int oif = 0;
- if (skb_dst(skb))
- oif = skb_dst(skb)->dev->ifindex;
+ if (skb_dst(skb)) {
+ oif = vrf_master_ifindex(skb_dst(skb)->dev) ?
+ : skb_dst(skb)->dev->ifindex;
+ }
memset(fl4, 0, sizeof(struct flowi4));
fl4->flowi4_mark = skb->mark;
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index a74013d..30caa28 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -20,6 +20,7 @@
#include <net/ip.h>
#include <net/ipv6.h>
#include <net/ip6_route.h>
+#include <net/vrf.h>
#if IS_ENABLED(CONFIG_IPV6_MIP6)
#include <net/mip6.h>
#endif
@@ -131,8 +132,10 @@
nexthdr = nh[nhoff];
- if (skb_dst(skb))
- oif = skb_dst(skb)->dev->ifindex;
+ if (skb_dst(skb)) {
+ oif = vrf_master_ifindex(skb_dst(skb)->dev) ?
+ : skb_dst(skb)->dev->ifindex;
+ }
memset(fl6, 0, sizeof(struct flowi6));
fl6->flowi6_mark = skb->mark;
