diff options
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | interface-definitions/ssh.xml | 183 | ||||
| -rwxr-xr-x | src/conf-mode/vyos-config-ssh.py | 67 |
3 files changed, 253 insertions, 0 deletions
@@ -20,6 +20,9 @@ interface_definitions: sed -i '/^type: txt/d' $(TMPL_DIR)/system/ntp/server/node.tag/noselect/node.def sed -i '/^type: txt/d' $(TMPL_DIR)/system/ntp/server/node.tag/preempt/node.def sed -i '/^type: txt/d' $(TMPL_DIR)/system/ntp/server/node.tag/prefer/node.def + sed -i '/^type: txt/d' $(TMPL_DIR)/service/ssh/allow-root/node.def + sed -i '/^type: txt/d' $(TMPL_DIR)/service/ssh/disable-host-validation/node.def + sed -i '/^type: txt/d' $(TMPL_DIR)/service/ssh/disable-password-authentication/node.def .PHONY: all all: interface_definitions diff --git a/interface-definitions/ssh.xml b/interface-definitions/ssh.xml new file mode 100644 index 000000000..9965dd69e --- /dev/null +++ b/interface-definitions/ssh.xml @@ -0,0 +1,183 @@ +<?xml version="1.0"?> + +<!--SSH configuration --> + +<interfaceDefinition> + <node name="service"> + <children> + <node name="ssh" owner="${vyos_sbindir}/vyos-config-ssh.py"> + <properties> + <help>Secure SHell (SSH) protocol</help> + <priority>500</priority> + </properties> + <children> + <node name="access-control"> + <properties> + <help>SSH user/group access controls</help> + </properties> + <children> + <leafNode name="allow-groups"> + <properties> + <help>Configure sshd_config access control for allowed groups</help> + </properties> + </leafNode> + <leafNode name="allow-users"> + <properties> + <help>Configure sshd_config access control for allowed users</help> + </properties> + </leafNode> + <leafNode name="deny-groups"> + <properties> + <help>Configure sshd_config access control for disallowed groups</help> + </properties> + </leafNode> + <leafNode name="deny-users"> + <properties> + <help>Configure sshd_config access control for disallowed users</help> + </properties> + </leafNode> + </children> + </node> + <leafNode name="allow-root"> + <properties> + <help>Enable root login over ssh</help> + </properties> + </leafNode> + <leafNode name="ciphers"> + <properties> + <help>Allowed ciphers</help> + <valueHelp> + <format>chacha20-poly1305@openssh.com</format> + <description>ChaCha20 Poly1305</description> + </valueHelp> + <valueHelp> + <format>3des-cbc</format> + <description>3DES CBC (weak)</description> + </valueHelp> + <valueHelp> + <format>aes128-cbc</format> + <description>AES 128 CBC</description> + </valueHelp> + <valueHelp> + <format>aes192-cbc</format> + <description>AES 192 CBC</description> + </valueHelp> + <valueHelp> + <format>aes256-cbc</format> + <description>AES 256 CBC</description> + </valueHelp> + <valueHelp> + <format>aes128-ctr</format> + <description>AES 128 CTR</description> + </valueHelp> + <valueHelp> + <format>aes192-ctr</format> + <description>AES 192 CTR</description> + </valueHelp> + <valueHelp> + <format>aes256-ctr</format> + <description>AES 256 CTR</description> + </valueHelp> + <valueHelp> + <format>arcfour128</format> + <description>AC4 128 (broken)</description> + </valueHelp> + <valueHelp> + <format>arcfour256</format> + <description>AC4 256 (broken)</description> + </valueHelp> + <valueHelp> + <format>arcfour</format> + <description>AC4 (broken)</description> + </valueHelp> + <valueHelp> + <format>blowfish-cbc</format> + <description>Blowfish CBC</description> + </valueHelp> + <valueHelp> + <format>cast128-cbc</format> + <description>CAST 128 CBC</description> + </valueHelp> + </properties> + </leafNode> + <leafNode name="disable-host-validation"> + <properties> + <help>Don't validate the remote host name with DNS</help> + </properties> + </leafNode> + <leafNode name="disable-password-authentication"> + <properties> + <help>Don't allow unknown user to login with password</help> + </properties> + </leafNode> + <leafNode name="key-exchange"> + <properties> + <help>Key exchange algorithms</help> + <completionHelp> + <script>ssh -Q kex | perl -ne '$_=~s/\n/ /;print'</script> + </completionHelp> + </properties> + </leafNode> + <leafNode name="listen-address"> + <properties> + <help>Local addresses SSH service should listen on</help> + <valueHelp> + <format>ipv4</format> + <description>IP address to listen for incoming connections</description> + </valueHelp> + <valueHelp> + <format>ipv6</format> + <description>IPv6 address to listen for incoming connections</description> + </valueHelp> + <type>ipv4,ipv6</type> + <multi/> + </properties> + </leafNode> + <leafNode name="loglevel"> + <properties> + <help>Log level</help> + <valueHelp> + <format>QUIET</format> + <description>stay silent</description> + </valueHelp> + <valueHelp> + <format>FATAL</format> + <description>log fatals only</description> + </valueHelp> + <valueHelp> + <format>ERROR</format> + <description>log errors and fatals only</description> + </valueHelp> + <valueHelp> + <format>INFO</format> + <description>default log level</description> + </valueHelp> + <valueHelp> + <format>VERBOSE</format> + <description>enable logging of failed login attempts</description> + </valueHelp> + </properties> + </leafNode> + <leafNode name="mac"> + <properties> + <help>Allowed message authentication algorithms</help> + <completionHelp> + <script>ssh -Q mac | perl -ne '$_=~s/\n/ /;print'</script> + </completionHelp> + </properties> + </leafNode> + <leafNode name="port"> + <properties> + <help>Port for SSH service</help> + <valueHelp> + <format>u32:1-65535</format> + <description>Numeric IP port</description> + </valueHelp> + <type>u32</type> + </properties> + </leafNode> + </children> + </node> + </children> + </node> +</interfaceDefinition> diff --git a/src/conf-mode/vyos-config-ssh.py b/src/conf-mode/vyos-config-ssh.py new file mode 100755 index 000000000..e91e829b2 --- /dev/null +++ b/src/conf-mode/vyos-config-ssh.py @@ -0,0 +1,67 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2018 VyOS maintainers and contributors +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 or later as +# published by the Free Software Foundation. +# +# This program 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 General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# + +import sys +import os +import time + +from vyos.config import Config +from vyos.util import ConfigError + +config_file = r'/etc/ssh/sshd_config' + +def get_config(): + ssh = {} + conf = Config() + conf.set_level('service ssh') + if not conf.exists(''): + return ssh + + return ssh + +def verify(ssh): + return None + +def generate(ssh): + config_header = '### Autogenerated by vyos-config-ssh.py on {tm} ###\n'.format(tm=time.strftime("%a, %d %b %Y %H:%M:%S", time.localtime())) + + # write new configuration file + f = open(config_file, 'w') + f.write(config_header) + f.write('\n') + f.close() + return None + +def apply(ssh): + if len(ssh) == 0: + cmd = "sudo systemctl stop ssh" + else: + cmd = "sudo systemctl start ssh" + + os.system(cmd) + return None + +if __name__ == '__main__': + try: + c = get_config() + verify(c) + generate(c) + apply(c) + except ConfigError as e: + print(e) + sys.exit(1) |