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fix: samba not work #173

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merged 3 commits into from
Jul 2, 2023
Merged

fix: samba not work #173

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21868eb
fix: samba not work
mzz2017 Jul 2, 2023
3058c38
update
mzz2017 Jul 2, 2023
1b98214
Merge 050f9b8c92e63e90fcbd3dd8845355e6f8e6281f into fix_samba
dae-prow[bot] Jul 2, 2023
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6 changes: 5 additions & 1 deletion control/kern/tproxy.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1307,6 +1307,10 @@ int tproxy_lan_ingress(struct __sk_buff *skb) {

sk = bpf_skc_lookup_tcp(skb, &tuple, tuple_size, BPF_F_CURRENT_NETNS, 0);
if (sk) {
if (tuples.dport == bpf_ntohs(445)) {
// samba. It is safe because the smb port cannot be customized.
goto sk_accept;
}
if (sk->state != BPF_TCP_LISTEN) {
is_old_conn = true;
goto assign;
Expand Down Expand Up @@ -1548,7 +1552,7 @@ int tproxy_wan_egress(struct __sk_buff *skb) {
// interface.
if (tproxy_response && l4proto == IPPROTO_TCP) {
// If it is a TCP first handshake, it is not a tproxy response.
if (tcph.syn && !tcph.syn) {
if (tcph.syn && !tcph.ack) {
tproxy_response = false;
// Abnormal.
return TC_ACT_SHOT;
Expand Down