From 60800a7f358853f9850a604222f65b1b8d5bd310 Mon Sep 17 00:00:00 2001
From: Evgeny <me@jeka.su>
Date: Mon, 1 Jun 2026 22:59:20 +0300
Subject: [PATCH] =?UTF-8?q?tcp=5Fproxy:=20=D0=BD=D0=B5=20=D1=81=D0=BB?=
 =?UTF-8?q?=D0=B0=D1=82=D1=8C=20=D0=B4=D0=B0=D0=BD=D0=BD=D1=8B=D0=B5=20?=
 =?UTF-8?q?=D0=B2=20lwip=20=D0=BF=D0=BE=D1=81=D0=BB=D0=B5=20=D0=B7=D0=B0?=
 =?UTF-8?q?=D0=BA=D1=80=D1=8B=D1=82=D0=B8=D1=8F=20TUN-=D1=81=D1=82=D0=BE?=
 =?UTF-8?q?=D1=80=D0=BE=D0=BD=D1=8B=20(tun=5Fclosed)?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- handle_data: добавить pc->tun_closed в проверку сброса данных от exit
- proxy_feed_from_transport: не писать в PCB после tun_closed
- предотвращает ERR_RST (-14) при записи в TIME_WAIT PCB
---
 src/tcp_proxy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/tcp_proxy.c b/src/tcp_proxy.c
index 26b73483..84d96257 100644
--- a/src/tcp_proxy.c
+++ b/src/tcp_proxy.c
@@ -157,7 +157,7 @@ static int tcp_proxy_handle_non_tcp(struct tcp_proxy* p, uint8_t* buf, size_t le
 // Помощник: передача данных из очереди to_lwip в lwIP TCP
 // ====================================================================
 static void proxy_feed_from_transport(struct proxy_conn *pc) {
-    if (!pc->to_lwip || !pc->pcb) return;
+    if (!pc->to_lwip || !pc->pcb || pc->tun_closed) return;
     int sent_any = 0;
     uint32_t q_pre = queue_entry_count(pc->to_lwip);
     while (1) {
@@ -410,7 +410,7 @@ static void handle_data(struct tcp_proxy* p, struct ETCP_CONN* conn, uint32_t st
         if (conn) proxy_send_msg(p->inst, conn->peer_node_id, TCP_PROXY_SUBCMD_CLOSE, stream_id, NULL, 0);
         queue_dgram_free(entry); queue_entry_free(entry); return;
     }
-    if (pc->rem_closed || pc->error) { queue_dgram_free(entry); queue_entry_free(entry); return; }
+    if (pc->rem_closed || pc->error || pc->tun_closed) { queue_dgram_free(entry); queue_entry_free(entry); return; }
     size_t data_len = entry->len - TCP_PROXY_HDR_SIZE;
     DEBUG_INFO(DEBUG_CATEGORY_TRAFFIC, "PROXY DATA <- sid=%08x len=%zu", stream_id, data_len);
     if (data_len > 0) {