From 905fde5a2757ad41232fa82f457e6b693b36d580 Mon Sep 17 00:00:00 2001
From: evgeny <evgeny@adaptto.ru>
Date: Sat, 12 Sep 2026 18:27:23 +0300
Subject: [PATCH] =?UTF-8?q?media:=20BLOCK=5FREQ=20=D1=82=D1=80=D0=B0=D0=BD?=
 =?UTF-8?q?=D0=B7=D0=B8=D1=82=D0=BE=D0=BC=20=E2=80=94=20=D1=83=D0=B1=D1=80?=
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---
 src/media_delivery/media_download.c | 27 ++++++---------------------
 1 file changed, 6 insertions(+), 21 deletions(-)

diff --git a/src/media_delivery/media_download.c b/src/media_delivery/media_download.c
index 8149765c..52614423 100644
--- a/src/media_delivery/media_download.c
+++ b/src/media_delivery/media_download.c
@@ -204,27 +204,12 @@ static int md_dl_request_block(struct media_download* dl, int bi) {
     dl->inflight++;
 
     struct UTUN_INSTANCE* inst = dl->inst;
-    if (instance_find_conn(inst, holder)) {
-        p->connected = 1;
-        b->state = MD_BLK_REQ;
-        md_dl_send_block_req(inst, holder, dl, bi);
-    } else {
-        struct TOPO_GROUP* grp = inst->topo_groups ? topo_groups_find(inst->topo_groups, dl->group_id) : NULL;
-        if (grp && grp->conn_mgr) {
-            int rc = conn_mgr_open(inst, grp->group_id, holder, md_dl_conn_cb, dl, &p->cm_handle);
-            if (rc != 0) {
-                DEBUG_WARN(DEBUG_CATEGORY_GENERAL, "%s: conn_mgr_open failed rc=%d for 0x%016llx", MDL_ID, rc, (unsigned long long)holder);
-                dl->inflight--;
-                return -1;
-            }
-            /* CONN — BLOCK_REQ отправится в md_dl_conn_cb по CONN_EVENT_UP */
-        } else {
-            /* нет conn_mgr — шлём напрямую best-effort */
-            p->connected = 1;
-            b->state = MD_BLK_REQ;
-            md_dl_send_block_req(inst, holder, dl, bi);
-        }
-    }
+    /* BLOCK_REQ шлём через роутер (etcp_route_send): при наличии прямого соединения
+     * пойдёт напрямую, иначе — транзитом. Держатель ответит чанками по лучшему пути,
+     * поэтому прямое соединение не требуется (NAT-узлы качают транзитом). */
+    p->connected = 1;
+    b->state = MD_BLK_REQ;
+    md_dl_send_block_req(inst, holder, dl, bi);
     return 0;
 }