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Commit 0a80966b authored May 07, 2014 by Tom Herbert Committed by David S. Miller May 08, 2014

net: Verify UDP checksum before handoff to encap



Moving validation of UDP checksum to be done in UDP not encap layer.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 39471ac8

net/ipv4/udp.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -1495,6 +1495,10 @@ int udp_queue_rcv_skb(struct sock sk, struct sk_buff skb)
		if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) {
		int ret;

		/* Verify checksum before giving to encap */
		if (udp_lib_checksum_complete(skb))
		goto csum_error;

		ret = encap_rcv(sk, skb);
		if (ret <= 0) {
		UDP_INC_STATS_BH(sock_net(sk),

net/ipv6/udp.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -634,6 +634,10 @@ int udpv6_queue_rcv_skb(struct sock sk, struct sk_buff skb)
		if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) {
		int ret;

		/* Verify checksum before giving to encap */
		if (udp_lib_checksum_complete(skb))
		goto csum_error;

		ret = encap_rcv(sk, skb);
		if (ret <= 0) {
		UDP_INC_STATS_BH(sock_net(sk),