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Commit e971b722 authored by Tom Herbert's avatar Tom Herbert Committed by David S. Miller
Browse files

rps: Infrastructure in __skb_get_rxhash for deep inspection 



Basics for looking for ports in encapsulated packets in tunnels.

Signed-off-by: default avatarTom Herbert <therbert@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent bdeab991

net/core/dev.c

+7 −0
Original line number Diff line number Diff line
@@ -133,6 +133,7 @@ 
#include <linux/pci.h>

#include <linux/inetdevice.h>

#include <linux/cpu_rmap.h>

#include <linux/if_tunnel.h>



#include "net-sysfs.h"
@@ -2539,6 +2540,7 @@ void __skb_get_rxhash(struct sk_buff *skb) 
	nhoff = skb_network_offset(skb);

	proto = skb->protocol;



again:

	switch (proto) {

	case __constant_htons(ETH_P_IP):

		if (!pskb_may_pull(skb, sizeof(*ip) + nhoff))
@@ -2567,6 +2569,11 @@ void __skb_get_rxhash(struct sk_buff *skb) 
		goto done;

	}



	switch (ip_proto) {

	default:

		break;

	}



	ports.v32 = 0;

	poff = proto_ports_offset(ip_proto);

	if (poff >= 0) {