commit dc6afa7f3d9bc4c1db90a2756db2f6c13f562137 Author: Emiliano Vavassori Date: Mon Jul 13 22:43:50 2015 +0200 Import iniziale. Mergiato mac2hostname con ansible-helper. diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c0abd76 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +*.sh +*.tar.* diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..8cdb845 --- /dev/null +++ b/LICENSE @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. 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If this is what you want to do, use the GNU Lesser General +Public License instead of this License. + diff --git a/README.md b/README.md new file mode 100644 index 0000000..5f8bcee --- /dev/null +++ b/README.md @@ -0,0 +1,2 @@ +# mac2hostname +Assign hostname based on MAC address diff --git a/defaults/TCPPort b/defaults/TCPPort new file mode 100644 index 0000000..13de30f --- /dev/null +++ b/defaults/TCPPort @@ -0,0 +1 @@ +3000 diff --git a/defaults/access b/defaults/access new file mode 100644 index 0000000..3e18ebf --- /dev/null +++ b/defaults/access @@ -0,0 +1 @@ +private diff --git a/defaults/status b/defaults/status new file mode 100644 index 0000000..86981e6 --- /dev/null +++ b/defaults/status @@ -0,0 +1 @@ +enabled diff --git a/defaults/type b/defaults/type new file mode 100644 index 0000000..24e1098 --- /dev/null +++ b/defaults/type @@ -0,0 +1 @@ +service diff --git a/doraemon.ini b/doraemon.ini new file mode 100644 index 0000000..5d571a6 --- /dev/null +++ b/doraemon.ini @@ -0,0 +1,16 @@ +[Daemon] +Database = /var/lib/doraemon/doraemon.db +LogFile = /var/log/doraemon.log +PIDFile = /var/run/doraemon.pid +BindAddress = 0.0.0.0 +Port = 3000 + +[NameSettings] +Base = lab +Role = client +Digits = 2 + +[Files] +Domain = /etc/domain.yml +MgmtKey = /home/amgmt/.ssh/id_rsa.pub +VaulPassFile = /root/.ansible/vault.txt diff --git a/doraemon.py b/doraemon.py new file mode 100644 index 0000000..21af761 --- /dev/null +++ b/doraemon.py @@ -0,0 +1,160 @@ +#!/usr/bin/env python + +"""Helps a client to join domain and maintain itself.""" +__author__ = 'Enrico Bacis' +__email__ = 'enrico.bacis@gmail.com' + +from contextlib import contextmanager, closing +from subprocess import Popen, PIPE +from sqlite3 import connect +from bottle import Bottle, request +from json import dumps +from ConfigParser import ConfigParser +from Crypto.Hash import MD5 +from Crypto.Cipher import AES +import base64 +import re +import os +import sys + +class MyApp: + def __init__(self, configfile = '/etc/mac2hostname.ini'): + if not os.path.isfile(configfile): + print "Cannot find main file, %s. Exiting." % configfile + sys.exit(1) + + # Loads configurations + config = ConfigParser() + config.read(configfile) + # Populates private properties with configuration + self.__dbfile = config.get('Daemon', 'Database') if config.has_option('Daemon', 'Database') else '/var/lib/doraemon/doraemon.db' + self.__logdir = config.get('Daemon', 'LogFile') if config.has_option('Daemon', 'LogFile') else '/var/log/doraemon.log' + self.__pidfile = config.get('Daemon', 'PIDFile') if config.has_option('Daemon', 'PIDFile') else '/var/run/doraemon.pid' + self.__bindaddress = config.get('Daemon', 'BindAddress') if config.has_option('Daemon', 'BindAddress') else '127.0.0.1' + self.__port = config.getint('Daemon', 'Port') if config.has_option('Daemon', + 'Port') else 8080 + self.__defaultbase = config.get('NameSettings', 'Base') if config.has_option('NameSettings', 'Base') else 'client' + self.__defaultrole = config.get('NameSettings', 'Role') if config.has_option('NameSettings', 'Role') else 'client' + self.__namedigits = config.get('NameSettings', 'Digits') if config.has_option('NameSettings', 'Digits') else '2' + self.__domainfile = config.get('Files', 'Domain') if config.has_option('Files', 'Domain') else None + self.__mgmtfile = config.get('Files', 'MgmtKey') if config.has_option('Files', 'MgmtKey') else None + self.__vaultpassfile = config.get('Files', 'VaultPassFile') if config.has_option('Files', 'VaultPassFile') else None + self.__app = Bottle() + # Applies routes + self.__route() + # Assures table creation + self.__init_tables() + + # Private methods + def __route(self): + self.__app.get('/mac2hostname', callback=self.mac2hostname) + self.__app.get('/whatsmyhostname', callback=self.whatsmyhostname) + self.__app.get('/hosts', callback=self.hosts) + self.__app.get('/domain', callback=self.domain) + self.__app.get('/mgmtkey', callback=self.mgmtkey) + self.__app.get('/vaultpass', callback=self.vaultpass) + + def __init_tables(self): + with self.__getcursor() as cursor: + cursor.execute('CREATE TABLE IF NOT EXISTS client (id INT PRIMARY KEY,' + 'hostname TEXT NOT NULL UNIQUE, mac TEXT UNIQUE, role TEXT)') + cursor.execute('CREATE INDEX IF NOT EXISTS idxmac ON client(mac)') + + def __getmac(self, ip): + Popen(['ping', '-c1', '-t2', ip], stdout=PIPE).communicate() + arp = Popen(['arp', '-n', ip], stdout=PIPE).communicate()[0] + return re.search(r'(([\da-fA-F]{1,2}\:){5}[\da-fA-F]{1,2})', arp).group(1).lower() + + def __normalizemac(self, mac): + return ':'.join(x.zfill(2) for x in mac.split('_')).lower() + + def __gethostname(self, mac): + # At this point, the mac is set. + with self.__getcursor() as cursor: + (newid,) = cursor.execute('SELECT COALESCE(MAX(id) + 1, 1) FROM client').fetchone() + # Constucts the hostname format + formatstring = '%s-%0' + self.__namedigits + 'd' + data = (newid, formatstring % (self.__defaultbase, newid), mac, self.__role) + # Since MAC is Unique, this fails with the same MAC address + cursor.execute('INSERT OR IGNORE INTO client VALUES (?, ?, ?, ?)', data) + (hostname,) = cursor.execute('SELECT hostname FROM client WHERE mac = "%s"' % mac).fetchone() + return hostname + + @contextmanager + def __getcursor(self): + with connect(self.__dbfile) as connection: + with closing(connection.cursor()) as cursor: + yield cursor + + # Instance methods AKA routes + def mac2hostname(self): + # Ensure required parameters have been passed + if not request.query.mac: + return "Usage: GET /mac2hostname?mac=XX_XX_XX_XX_XX_XX[&base=YYY][&role=ZZZ]" + # Sets up variables for possible parameters + mac = self.__normalizemac(request.query.mac) + self.__base = request.query.base or self.__defaultbase + self.__role = request.query.role or self.__defaultrole + return self.__gethostname(mac) + + def whatsmyhostname(self): + # No required parameters + ip = request.query.ip or request['REMOTE_ADDR'] + self.__role = request.query.role or self.__defaultrole + return self.__gethostname(self.__getmac(ip)) + + def hosts(self): + # Default where clause: no where specifications + where = '' + # If a role parameter is passed, list the hosts for that role + if request.query.role: + where = "WHERE role = '%s'" % request.query.role + with self.__getcursor() as cursor: + return dumps([dict((meta[0], data) + for meta, data in zip(cursor.description, row)) + for row in cursor.execute('SELECT role, hostname, mac FROM client ' + + where + 'ORDER BY role ASC, hostname ASC')], indent=4) + + def domain(self): + with open(self.__domainfile, 'r') as f: + return f.read() + + def mgmtkey(self): + with open(self.__mgmtfile, 'r') as f: + return f.read() + + def vaultpass(self): + with open(self.__vaultpassfile) as f: + ip = request.query.ip or request['REMOTE_ADDR'] + hostname = self.__gethostname(self.__getmac(ip)) + # Chiave + key = MD5.new(hostname).digest() + # Segreto da crittare + secret = f.read().strip() + # Rendo il segreto lungo un multiplo di 16 byte + i = 16 - (len(secret) % 16) + lenghty_secret = secret + i * 'x' + cipher = AES.new(key, AES.MODE_ECB) + crypted = cipher.encrypt(lenghty_secret) + + # Devo ritornare un base64 perché la stringa criptata è UTF-8 e non è + # sempre visibile. + return base64.b64encode(crypted) + + def start(self): + # Opens up a PID file + pid = os.getpid() + pidfile = open(self.__pidfile, 'w') + pidfile.write('%s' % pid) + pidfile.close() + + # Runs Bottle, at last. + self.__app.run(host=self.__bindaddress, port=self.__port) + +# Main body +if __name__ == '__main__': + cfgfile = '/etc/mac2hostname.ini' + if len(sys.argv) > 1: + cfgfile = sys.argv[1] + app = MyApp(cfgfile) + app.start() diff --git a/doraemon.spec b/doraemon.spec new file mode 100644 index 0000000..7ee3202 --- /dev/null +++ b/doraemon.spec @@ -0,0 +1,75 @@ +Summary: Helps client to join domain and maintain itself +Name: doraemon +Version: 1.0.0 +Release: 1.ns6 +URL: https://github.com/bglug-it/doraemon/ +License: GPLv2+ +Group: System Environment/Daemons +BuildRoot: %{_tmppath}/%{name}-root +Requires: python python-bottle python-crypto2.6 nethserver-base +Requires(post): chkconfig nethserver-base +Requires(preun): chkconfig initscripts nethserver-base +Source0: doraemon-1.0.0.tar.gz +BuildArch: noarch + +%description +Helps client on a domain network to get information for its maintenance. + +%prep +%setup -q + +%build + +%install +rm -rf %{buildroot} +install -d %{buildroot} +install -d -m 755 %{buildroot}%{_sysconfdir} +install -m 644 doraemon.ini %{buildroot}%{_sysconfdir}/%{name}.ini +# Installo il servizio +install -d -m 755 %{buildroot}%{_initrddir} +install -m 755 initrd %{buildroot}%{_initrddir}/%{name} +# Installo lo script vero e proprio +install -d -m 755 %{buildroot}%{_bindir} +install -m 755 doraemon.py %{buildroot}%{_bindir}/%{name}.py +# Cartella del database +install -d %{buildroot}%{_sharedstatedir}/%{name} +install -d %{buildroot}%{_sysconfdir}/e-smith/db/configuration/defaults/%{name} +install -m 644 type %{buildroot}%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/type +install -m 644 status %{buildroot}%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/status +install -m 644 access %{buildroot}%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/access +install -m 644 TCPPort %{buildroot}%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/TCPPort + +%post +/sbin/chkconfig --add %{name} +/sbin/service %{name} start >/dev/null 2>&1 +/sbin/e-smith/db configuration set %{name} service status enabled TCPPort 3000 access private +/sbin/e-smith/signal-event runlevel-adjust +/sbin/e-smith/signal-event firewall-adjust + +%preun +/sbin/e-smith/db configuration delete %{name} +/sbin/service %{name} stop >/dev/null 2>&1 +chkconfig --del %{name} +/sbin/e-smith/signal-event runlevel-adjust +/sbin/e-smith/signal-event firewall-adjust + +%clean +rm -rf %{buildroot} + +%files +%defattr(644,root,root,755) +%doc README.md LICENSE +%config(noreplace) %{_sysconfdir}/%{name}.ini +%attr(755,-,-) %{_initrddir}/%{name} +%attr(755,-,-) %{_bindir}/%{name}.py + +%dir %attr(755,-,-) %{_sharedstatedir}/%{name} +%dir %attr(755,-,-) %{_sysconfdir}/e-smith/db/configuration/defaults/%{name} +%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/status +%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/type +%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/access +%{_sysconfdir}/e-smith/db/configuration/defaults/%{name}/TCPPort + +%changelog +* Mon Jul 13 2015 Emiliano Vavassori - 1.0.0-1.ns6 +- Unique binary for both ansiblehelper and mac2hostname. diff --git a/initrd b/initrd new file mode 100644 index 0000000..5453b61 --- /dev/null +++ b/initrd @@ -0,0 +1,79 @@ +#!/bin/sh + +# chkconfig: 2345 20 80 +# description: Manage assignation of hostnames for clients +# pidfile: /var/run/doraemon.pid +# config: /etc/doraemon.ini + +### BEGIN INIT INFO +# Provides: doraemon +# Required-Start: $remote_fs $syslog +# Required-Stop: $remote_fs $syslog +# Default-Start: 2 3 4 5 +# Default-Stop: 0 1 6 +# Short-Description: Helps client to join the domain and maintain itself +# Description: Helps client to join the domain and maintain itself +### END INIT INFO + +# Change the next 3 lines to suit where you install your script and what you want to call it +DAEMON=/usr/bin/doraemon.py +DAEMON_NAME=doraemon + +# Add any command line options for your daemon here +DAEMON_OPTS="" + +# This next line determines what user the script runs as. +# Root generally not recommended but necessary if you are using the Raspberry Pi GPIO from Python. +#DAEMON_USER=mac2hostname +#DAEMON_GROUP=mac2hostname + +# The process ID of the script when it runs is stored here: +LOGFILE=/var/log/$DAEMON_NAME.log +PIDFILE=/var/run/$DAEMON_NAME.pid +lockfile=/var/lock/subsys/$DAEMON_NAME + +. /etc/rc.d/init.d/functions +. /etc/sysconfig/network + +[ "$NETWORKING" = "no" ] && exit 0 + +do_start () { + echo -n $"Starting $DAEMON_NAME: " + daemon --pidfile=$PIDFILE "python $DAEMON >>$LOGFILE 2>/dev/null &" + RETVAL=$? + echo + [ $RETVAL -eq 0 ] && touch $lockfile + return $RETVAL +} + +do_stop () { + echo -n $"Stopping $DAEMON_NAME: " + killproc -p $PIDFILE python + RETVAL=$? + echo + [ $RETVAL -eq 0 ] && rm -f $lockfile + return $RETVAL +} + +case "$1" in + + start|stop) + do_${1} + ;; + + restart|reload|force-reload) + do_stop + do_start + ;; + + status) + status -p $PIDFILE python + ;; + + *) + echo "Usage: /etc/init.d/$DAEMON_NAME {start|stop|restart|status}" + exit 1 + ;; + +esac +exit 0