add stuff

root/scripts/tv/enable_sftp.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+# enable_sftp.sh — after a successful `sftp -P 2222` test, swap the
+# SFTP-capable Dropbear onto port 22.
+#
+# Backs up the current binary as /3rd_rw/sshd/dropbear.nosftp, schedules
+# swap_sftp.sh detached (the caller's SSH session will drop), and returns.
+set -e
+PATH=/bin:/sbin:/usr/bin:/usr/sbin:/basic/bin
+export PATH
+APP=/3rd_rw/appdata
+D=/3rd_rw/sshd
+
+[ -f "$D/sftp-server" ]   || { echo "missing $D/sftp-server"; exit 1; }
+[ -f "$D/dropbear-sftp" ] || { echo "missing $D/dropbear-sftp"; exit 1; }
+[ -f "$APP/swap_sftp.sh" ] || { echo "missing $APP/swap_sftp.sh"; exit 1; }
+
+# stop the 2222 test instance
+if [ -f "$D/dropbear2222.pid" ]; then
+  kill "$(cat "$D/dropbear2222.pid")" 2>/dev/null || true
+  rm -f "$D/dropbear2222.pid"
+fi
+
+# one-time backup of the known-good non-SFTP binary
+if [ ! -f "$D/dropbear.nosftp" ]; then
+  cp -f "$D/dropbear" "$D/dropbear.nosftp"
+  chmod 755 "$D/dropbear.nosftp"
+fi
+
+cp -f "$D/dropbear-sftp" "$D/dropbear.new"
+chmod 755 "$D/dropbear.new"
+
+if /bin/busybox --list 2>/dev/null | grep -q '^nohup$'; then
+  /bin/busybox nohup /bin/sh "$APP/swap_sftp.sh" >"$D/swap.log" 2>&1 &
+else
+  /bin/sh "$APP/swap_sftp.sh" >"$D/swap.log" 2>&1 &
+fi
+echo "swap scheduled; port 22 will restart in ~3s; reconnect after ~6s"