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authorDongseok Yi <dseok.yi@samsung.com>2021-01-30 02:13:27 +0300
committerJakub Kicinski <kuba@kernel.org>2021-02-02 07:02:16 +0300
commitc3df39ac9b0e3747bf8233ea9ce4ed5ceb3199d3 (patch)
treebfa81cf96b093ce286b310d189b47e4031728bfd /include
parent28e104d00281ade30250b24e098bf50887671ea4 (diff)
downloadlinux-c3df39ac9b0e3747bf8233ea9ce4ed5ceb3199d3.tar.xz
udp: ipv4: manipulate network header of NATed UDP GRO fraglist
UDP/IP header of UDP GROed frag_skbs are not updated even after NAT forwarding. Only the header of head_skb from ip_finish_output_gso -> skb_gso_segment is updated but following frag_skbs are not updated. A call path skb_mac_gso_segment -> inet_gso_segment -> udp4_ufo_fragment -> __udp_gso_segment -> __udp_gso_segment_list does not try to update UDP/IP header of the segment list but copy only the MAC header. Update port, addr and check of each skb of the segment list in __udp_gso_segment_list. It covers both SNAT and DNAT. Fixes: 9fd1ff5d2ac7 (udp: Support UDP fraglist GRO/GSO.) Signed-off-by: Dongseok Yi <dseok.yi@samsung.com> Acked-by: Steffen Klassert <steffen.klassert@secunet.com> Link: https://lore.kernel.org/r/1611962007-80092-1-git-send-email-dseok.yi@samsung.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/net/udp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/udp.h b/include/net/udp.h
index 877832bed471..01351ba25b87 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -178,7 +178,7 @@ struct sk_buff *udp_gro_receive(struct list_head *head, struct sk_buff *skb,
int udp_gro_complete(struct sk_buff *skb, int nhoff, udp_lookup_t lookup);
struct sk_buff *__udp_gso_segment(struct sk_buff *gso_skb,
- netdev_features_t features);
+ netdev_features_t features, bool is_ipv6);
static inline struct udphdr *udp_gro_udphdr(struct sk_buff *skb)
{