mirror of https://gitee.com/openkylin/linux.git
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>
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@ -1495,6 +1495,10 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
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if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) {
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if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) {
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int ret;
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int ret;
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/* Verify checksum before giving to encap */
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if (udp_lib_checksum_complete(skb))
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goto csum_error;
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ret = encap_rcv(sk, skb);
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ret = encap_rcv(sk, skb);
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if (ret <= 0) {
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if (ret <= 0) {
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UDP_INC_STATS_BH(sock_net(sk),
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UDP_INC_STATS_BH(sock_net(sk),
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@ -634,6 +634,10 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
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if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) {
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if (skb->len > sizeof(struct udphdr) && encap_rcv != NULL) {
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int ret;
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int ret;
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/* Verify checksum before giving to encap */
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if (udp_lib_checksum_complete(skb))
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goto csum_error;
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ret = encap_rcv(sk, skb);
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ret = encap_rcv(sk, skb);
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if (ret <= 0) {
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if (ret <= 0) {
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UDP_INC_STATS_BH(sock_net(sk),
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UDP_INC_STATS_BH(sock_net(sk),
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