diff options
| -rw-r--r-- | interface-definitions/host-name.xml | 22 | ||||
| -rw-r--r-- | src/conf-mode/vyos-config-host-name.py | 90 |
2 files changed, 112 insertions, 0 deletions
diff --git a/interface-definitions/host-name.xml b/interface-definitions/host-name.xml new file mode 100644 index 000000000..1452a956a --- /dev/null +++ b/interface-definitions/host-name.xml @@ -0,0 +1,22 @@ +<?xml version="1.0"?> + +<!-- host-name configuration --> + +<interfaceDefinition> + <node name="system"> + <children> + <node name="host-name" owner="${vyos_sbindir}/vyos-config-host-name.py"> + <properties> + <help>System host name (default: vyos)</help> + </properties> + <children> + <leafNode name="hostname"> + <properties> + <help>System host name (default: vyos)</help> + </properties> + </leafNode> + </children> + </node> + </children> + </node> +</interfaceDefinition>
\ No newline at end of file diff --git a/src/conf-mode/vyos-config-host-name.py b/src/conf-mode/vyos-config-host-name.py new file mode 100644 index 000000000..da053d9f6 --- /dev/null +++ b/src/conf-mode/vyos-config-host-name.py @@ -0,0 +1,90 @@ +#!/usr/bin/env python3 +# +# Copyright (C) 2018 VyOS maintainers and contributors +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 or later as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# + +import os +import re +import sys + +from vyos.config import Config +from vyos.util import ConfigError + +hostname_config = "/etc/hostname" +mailname_config = "/etc/mailname" +hostname_regex = re.compile("^[A-Za-z0-9][-.A-Za-z0-9]*[A-Za-z0-9]$") + +def get_config(): + conf = Config() + conf.set_level("system") + + hostname = conf.return_value("host-name") + domain = conf.return_value("domain-name") + + return { + "hostname": hostname, + "domain": domain + } + +def verify(config): + # check for invalid host + + # pattern $VAR(@) "^[[:alnum:]][-.[:alnum:]]*[[:alnum:]]$" ; "invalid host name $VAR(@)" + valid = hostname_regex.match(config.hostname) + if (!valid): + raise ConfigError('invalid host name' + config.hostname) + + # pattern $VAR(@) "^.{1,63}$" ; "invalid host-name length" + length = len(config.hostname) + if length < 1 or length > 63: + raise ConfigError('invalid host-name length') + + return None + + +def generate(config): + mailname = config.hostname + if config.domain != "": + mailname += '.' + config.domain + + # update /etc/hostname + with open(hostname_config, 'w') as f: + f.write(config.hostname) + + # update /etc/mailname + with open(mailname_config, 'w') as f: + f.write(mailname) + + return None + + +def apply(config): + # set hostname for the current session + cmd = "hostname " + config.hostname + 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) |