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| author | Felix Fietkau <nbd@nbd.name> | 2019-04-27 18:56:30 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2019-04-27 18:58:07 +0200 |
| commit | 9af2735734fce61eaf9bdb49fff218e6548af6f2 (patch) | |
| tree | 96e91ec8ba21f28664bcf66bccced4c590f731f7 /target/linux/generic/pending-4.19/613-netfilter_optional_tcp_window_check.patch | |
| parent | 17cb490ac49c7bf06f8a88b479ce9357c2f8dca3 (diff) | |
| download | upstream-9af2735734fce61eaf9bdb49fff218e6548af6f2.tar.gz upstream-9af2735734fce61eaf9bdb49fff218e6548af6f2.tar.bz2 upstream-9af2735734fce61eaf9bdb49fff218e6548af6f2.zip | |
kernel: fix regression on 4.19 with 613-netfilter_optional_tcp_window_check.patch (FS#2253)
Since ct->proto.tcp.last_win isn't updated when nf_ct_tcp_no_window_check is
enabled, the retransmission timeout check needs to be bypassed.
Based on patch by Rob Mosher
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'target/linux/generic/pending-4.19/613-netfilter_optional_tcp_window_check.patch')
| -rw-r--r-- | target/linux/generic/pending-4.19/613-netfilter_optional_tcp_window_check.patch | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/target/linux/generic/pending-4.19/613-netfilter_optional_tcp_window_check.patch b/target/linux/generic/pending-4.19/613-netfilter_optional_tcp_window_check.patch index aa53309394..2bc48f87cf 100644 --- a/target/linux/generic/pending-4.19/613-netfilter_optional_tcp_window_check.patch +++ b/target/linux/generic/pending-4.19/613-netfilter_optional_tcp_window_check.patch @@ -28,6 +28,15 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name> /* * Get the required data from the packet. */ +@@ -1057,7 +1063,7 @@ static int tcp_packet(struct nf_conn *ct + IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED && + timeouts[new_state] > timeouts[TCP_CONNTRACK_UNACK]) + timeout = timeouts[TCP_CONNTRACK_UNACK]; +- else if (ct->proto.tcp.last_win == 0 && ++ else if (!nf_ct_tcp_no_window_check && ct->proto.tcp.last_win == 0 && + timeouts[new_state] > timeouts[TCP_CONNTRACK_RETRANS]) + timeout = timeouts[TCP_CONNTRACK_RETRANS]; + else @@ -1506,6 +1512,13 @@ static struct ctl_table tcp_sysctl_table .mode = 0644, .proc_handler = proc_dointvec, |