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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/ipv6/tcp_ipv6.c
parentb9825695930546af725b1e686b8eaf4c71201728 (diff)
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/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 4f8464e04b7f..f677f0fa5196 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1623,7 +1623,6 @@ int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
if (np->rxopt.all)
opt_skb = skb_clone_and_charge_r(skb, sk);
- reason = SKB_DROP_REASON_NOT_SPECIFIED;
if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
struct dst_entry *dst;
@@ -1654,8 +1653,11 @@ int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
struct sock *nsk = tcp_v6_cookie_check(sk, skb);
if (nsk != sk) {
- if (nsk && tcp_child_process(sk, nsk, skb))
- goto reset;
+ if (nsk) {
+ reason = tcp_child_process(sk, nsk, skb);
+ if (reason)
+ goto reset;
+ }
if (opt_skb)
__kfree_skb(opt_skb);
return 0;
@@ -1854,10 +1856,12 @@ process:
if (nsk == sk) {
reqsk_put(req);
tcp_v6_restore_cb(skb);
- } else if (tcp_child_process(sk, nsk, skb)) {
- tcp_v6_send_reset(nsk, skb);
- goto discard_and_relse;
} else {
+ drop_reason = tcp_child_process(sk, nsk, skb);
+ if (drop_reason) {
+ tcp_v6_send_reset(nsk, skb);
+ goto discard_and_relse;
+ }
sock_put(sk);
return 0;
}