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| author |  Jason Xing <kernelxing@tencent.com>
| 2024-04-25 11:13:37 +0800 |
|---|---|---|
| committer |  Paolo Abeni <pabeni@redhat.com>
| 2024-04-26 15:34:00 +0200 |
| commit | 120391ef9ca8fe8f82ea3f2961ad802043468226 (patch) | |
| tree | ba253590d95949da259a0d2d571178332eeb1df8 /net/ipv4 | |
| parent | rstreason: prepare for active reset (diff) | |
| download | linux-120391ef9ca8fe8f82ea3f2961ad802043468226.tar.gz linux-120391ef9ca8fe8f82ea3f2961ad802043468226.tar.bz2 linux-120391ef9ca8fe8f82ea3f2961ad802043468226.zip | |
tcp: support rstreason for passive reset
Reuse the dropreason logic to show the exact reason of tcp reset,
so we can finally display the corresponding item in enum sk_reset_reason
instead of reinventing new reset reasons. This patch replaces all
the prior NOT_SPECIFIED reasons.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 202f6dfa958b..621879ba916d 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1936,7 +1936,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb) return 0; reset: - tcp_v4_send_reset(rsk, skb, SK_RST_REASON_NOT_SPECIFIED); + tcp_v4_send_reset(rsk, skb, sk_rst_convert_drop_reason(reason)); discard: kfree_skb_reason(skb, reason); /* Be careful here. If this function gets more complicated and @@ -2287,7 +2287,10 @@ lookup: } else { drop_reason = tcp_child_process(sk, nsk, skb); if (drop_reason) { - tcp_v4_send_reset(nsk, skb, SK_RST_REASON_NOT_SPECIFIED); + enum sk_rst_reason rst_reason; + + rst_reason = sk_rst_convert_drop_reason(drop_reason); + tcp_v4_send_reset(nsk, skb, rst_reason); goto discard_and_relse; } sock_put(sk); @@ -2366,7 +2369,7 @@ csum_error: bad_packet: __TCP_INC_STATS(net, TCP_MIB_INERRS); } else { - tcp_v4_send_reset(NULL, skb, SK_RST_REASON_NOT_SPECIFIED); + tcp_v4_send_reset(NULL, skb, sk_rst_convert_drop_reason(drop_reason)); } discard_it: @@ -2418,7 +2421,7 @@ do_time_wait: tcp_v4_timewait_ack(sk, skb); break; case TCP_TW_RST: - tcp_v4_send_reset(sk, skb, SK_RST_REASON_NOT_SPECIFIED); + tcp_v4_send_reset(sk, skb, sk_rst_convert_drop_reason(drop_reason)); inet_twsk_deschedule_put(inet_twsk(sk)); goto discard_it; case TCP_TW_SUCCESS:; |