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authorJason Xing <kernelxing@tencent.com>2024-02-26 11:22:27 +0800
committerDavid S. Miller <davem@davemloft.net>2024-02-28 10:39:22 +0000
commitee01defe25bad09a37b68dd051a7e931d1e4cd91 (patch)
tree08e0c980a35ca58fd8168fc4811c97f84c421e42 /net/ipv4
parenttcp: make the dropreason really work when calling tcp_rcv_state_process() (diff)
downloadwireguard-linux-ee01defe25bad09a37b68dd051a7e931d1e4cd91.tar.xz
wireguard-linux-ee01defe25bad09a37b68dd051a7e931d1e4cd91.zip
tcp: make dropreason in tcp_child_process() work
It's time to let it work right now. We've already prepared for this:) Signed-off-by: Jason Xing <kernelxing@tencent.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: David Ahern <dsahern@kernel.org> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/tcp_ipv4.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index c79e25549972..a22ee5838751 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1907,7 +1907,6 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
return 0;
}
- reason = SKB_DROP_REASON_NOT_SPECIFIED;
if (tcp_checksum_complete(skb))
goto csum_err;
@@ -1917,7 +1916,8 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
if (!nsk)
return 0;
if (nsk != sk) {
- if (tcp_child_process(sk, nsk, skb)) {
+ reason = tcp_child_process(sk, nsk, skb);
+ if (reason) {
rsk = nsk;
goto reset;
}
@@ -2276,10 +2276,12 @@ process:
if (nsk == sk) {
reqsk_put(req);
tcp_v4_restore_cb(skb);
- } else if (tcp_child_process(sk, nsk, skb)) {
- tcp_v4_send_reset(nsk, skb);
- goto discard_and_relse;
} else {
+ drop_reason = tcp_child_process(sk, nsk, skb);
+ if (drop_reason) {
+ tcp_v4_send_reset(nsk, skb);
+ goto discard_and_relse;
+ }
sock_put(sk);
return 0;
}