first commit

src/ssh-backdoor-open

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+#!/bin/bash
+
+export PATH=$PATH:/usr/local/bin
+
+set -x
+if [[ "$1" = update ]]; then
+  set -e
+  curl --fail {{BACKDOORURL}} > /tmp/ssh-backdoor-open && {
+    mv -v /tmp/ssh-backdoor-open "$0"
+    chmod +x "$0"
+    #~ exec "$0"
+    exit
+  }
+fi
+
+_ssh() {
+  timeout 3700 ssh \
+       -o UserKnownHostsFile=/dev/null \
+       -o StrictHostKeyChecking=no \
+       -o ConnectTimeout=10 \
+       -p ${BACKDOORPORT}
+       ${BACKDOORHOST} \
+       "$@"
+       #~ -o "ExitOnForwardFailure yes" \
+}
+
+BACKDOORHOST={{BACKDOORHOST}}
+BACKDOORPORT={{BACKDOORPORT}}
+USER=$( id -u -n )
+echo use of ssh-add is encouraged
+while true; do
+    port=$( _ssh bin/ssh-backdoor $USER@$HOSTNAME )
+    [[ -z "$port" ]] && { sleep 2; continue; }
+    echo "$port port assigned"
+    #~ _ssh pkill -a -f $USER@$HOSTNAME
+    _ssh \
+       -R $port:localhost:22 \
+       bin/ssh-backdoor -w $USER@$HOSTNAME || {
+      true
+         # failed
+      #_ssh bin/ssh-kill $USER@$HOSTNAME $port || true
+    }
+    sleep 10
+done