From 69fb230ee022100234af233f2a2823f887c95059 Mon Sep 17 00:00:00 2001 From: JeffWDH Date: Mon, 16 Oct 2023 15:49:23 -0300 Subject: op-mode: T5653: command to display SSH server public key fingerprints --- src/op_mode/show-ssh-fingerprints.py | 49 ++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 src/op_mode/show-ssh-fingerprints.py (limited to 'src/op_mode') diff --git a/src/op_mode/show-ssh-fingerprints.py b/src/op_mode/show-ssh-fingerprints.py new file mode 100644 index 000000000..913baae46 --- /dev/null +++ b/src/op_mode/show-ssh-fingerprints.py @@ -0,0 +1,49 @@ +#!/usr/bin/env python3 +# +# Copyright 2017-2023 VyOS maintainers and contributors +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# This library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with this library. If not, see . + +import sys +import glob +import argparse +from vyos.utils.process import cmd + +# Parse command line +parser = argparse.ArgumentParser() +parser.add_argument("--ascii", help="Show visual ASCII art representation of the public key", action="store_true") +args = parser.parse_args() + +# Get list of server public keys +publickeys = glob.glob("/etc/ssh/*.pub") + +if publickeys: + print("SSH server public key fingerprints:\n", flush=True) + for keyfile in publickeys: + if args.ascii: + try: + print(cmd("ssh-keygen -l -v -E sha256 -f " + keyfile) + "\n", flush=True) + # Ignore invalid public keys + except: + pass + else: + try: + print(cmd("ssh-keygen -l -E sha256 -f " + keyfile) + "\n", flush=True) + # Ignore invalid public keys + except: + pass +else: + print("No SSH server public keys are found.", flush=True) + +sys.exit(0) -- cgit v1.2.3