mirror of
https://github.com/ben-grande/qusal.git
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38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
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#!/bin/sh
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## SPDX-FileCopyrightText: 2024 Benjamin Grande M. S. <ben.grande.b@gmail.com>
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##
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## SPDX-License-Identifier: AGPL-3.0-or-later
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## How to use with SSH?
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## On Dom0 Qrexec policy:
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## qusal.ConnectTCP +domain.tld+22 sshclient @default ask default_target=sshproxy
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## On Dom0, enable the "qusal-proxy-client" service for the client qube:
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## qvm-features sshclient service.qusal-proxy-client 1
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## On the SSH Proxy server (netvm of your liking), install this RPC service.
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## qubesctl --skip-dom0 --targets=sshproxy state.apply sys-net.install-proxy
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## On the client ssh configuration:
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## Match Exec "test -f /var/run/qubes-service/qusal-proxy-client"
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## ProxyCommand qrexec-client-vm @default qusal.ConnectTCP+%h+%p
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set -eu
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arg="${QREXEC_SERVICE_ARGUMENT}"
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host="${arg%%+*}"
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port="${arg##*+}"
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if test -z "${port}" || test -z "${host}" || test "${port}" = "${host}"; then
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echo "Missing either host, port or both" >&2
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exit 1
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fi
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if test "${#host}" -gt 256; then
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echo "Host size exceeds limit" >&2
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exit 1
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fi
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if test "${#port}" -gt 5 || test "${port}" -gt 65535; then
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echo "Invalid port number, it must be between 1 and 65535" >&2
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exit 1
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fi
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exec socat - "TCP:${host}:${port}"
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