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authorDavid Ahern <dsa@cumulusnetworks.com>2016-05-10 11:19:51 -0700
committerDavid S. Miller <davem@davemloft.net>2016-05-11 19:31:40 -0400
commit0b922b7a829c06e3b0790c58cd9ca026de86096e (patch)
treeb68c8a9b5148687c7bce7c6a5ab14e26a5c47050 /include
parent74b20582ac389ee9f18a6fcc0eef244658ce8de0 (diff)
downloadlinux-0b922b7a829c06e3b0790c58cd9ca026de86096e.tar.bz2
net: original ingress device index in PKTINFO
Applications such as OSPF and BFD need the original ingress device not the VRF device; the latter can be derived from the former. To that end add the skb_iif to inet_skb_parm and set it in ipv4 code after clearing the skb control buffer similar to IPv6. From there the pktinfo can just pull it from cb with the PKTINFO_SKB_CB cast. The previous patch moving the skb->dev change to L3 means nothing else is needed for IPv6; it just works. Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/ip.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index 247ac82e9cf2..37165fba3741 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -36,6 +36,7 @@
struct sock;
struct inet_skb_parm {
+ int iif;
struct ip_options opt; /* Compiled IP options */
unsigned char flags;