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udp: allow header check for dodgy GSO_UDP_L4 packets.
Allow UDP_L4 for robust packets. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Andrew Melnychenko <andrew@daynix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -387,7 +387,8 @@ static struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
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if (!pskb_may_pull(skb, sizeof(struct udphdr)))
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goto out;
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if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
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if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4 &&
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!skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST))
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return __udp_gso_segment(skb, features, false);
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mss = skb_shinfo(skb)->gso_size;
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@ -42,7 +42,8 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
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if (!pskb_may_pull(skb, sizeof(struct udphdr)))
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goto out;
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if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
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if (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4 &&
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!skb_gso_ok(skb, features | NETIF_F_GSO_ROBUST))
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return __udp_gso_segment(skb, features, true);
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mss = skb_shinfo(skb)->gso_size;
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