From 5e7f6db7693903d714993d8e890097bac5d57357 Mon Sep 17 00:00:00 2001
From: Jonatan Schlag <jonatan.schlag@ipfire.org>
Date: Fri, 13 Apr 2018 17:47:14 +0200
Subject: [PATCH 1/1] Initial checkin

Signed-off-by: Jonatan Schlag <jonatan.schlag@ipfire.org>
---
 centos2-snapshot.xml               |   9 +
 centos2.xml                        | 115 ++++
 qcow2-copy.sh                      |  29 +
 test.py                            | 868 +++++++++++++++++++++++++++++
 test/recipe                        |   3 +
 test/settings                      |   9 +
 test2.py                           | 651 ++++++++++++++++++++++
 virtual-environment/basic/settings |  18 +
 8 files changed, 1702 insertions(+)
 create mode 100644 centos2-snapshot.xml
 create mode 100644 centos2.xml
 create mode 100644 qcow2-copy.sh
 create mode 100755 test.py
 create mode 100644 test/recipe
 create mode 100644 test/settings
 create mode 100755 test2.py
 create mode 100644 virtual-environment/basic/settings

diff --git a/centos2-snapshot.xml b/centos2-snapshot.xml
new file mode 100644
index 0000000..6145366
--- /dev/null
+++ b/centos2-snapshot.xml
@@ -0,0 +1,9 @@
+<domainsnapshot>
+  <description>Snapshot to undo all changes from this test</description>
+  <memory>no</memory>
+  <disks>
+    <disk name='/var/lib/libvirt/images/centos.qcow2'>
+      <!-- <source file='/home/jonatan/python-testing-kvm/hcentos-snap.qcow2'/> -->
+    </disk>
+  </disks>
+</domainsnapshot>
\ No newline at end of file
diff --git a/centos2.xml b/centos2.xml
new file mode 100644
index 0000000..7d9d351
--- /dev/null
+++ b/centos2.xml
@@ -0,0 +1,115 @@
+<domain type='kvm'>
+  <name>centos2</name>
+  <uuid>90c5d4cd-d277-4008-bff3-3a59e2b0a0ba</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='x86_64' machine='pc-i440fx-2.8'>hvm</type>
+  </os>
+  <features>
+    <acpi/>
+    <apic/>
+    <vmport state='off'/>
+  </features>
+  <cpu mode='custom' match='exact'>
+    <model fallback='allow'>Broadwell-noTSX</model>
+  </cpu>
+  <clock offset='utc'>
+    <timer name='rtc' tickpolicy='catchup'/>
+    <timer name='pit' tickpolicy='delay'/>
+    <timer name='hpet' present='no'/>
+  </clock>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>restart</on_crash>
+  <pm>
+    <suspend-to-mem enabled='no'/>
+    <suspend-to-disk enabled='no'/>
+  </pm>
+  <devices>
+    <emulator>/usr/bin/kvm</emulator>
+    <disk type='file' device='disk'>
+      <driver name='qemu' type='qcow2'/>
+      <source file='/var/lib/libvirt/images/centos.qcow2'/>
+      <target dev='vda' bus='virtio'/>
+      <boot order='1'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
+    </disk>
+    <disk type='file' device='cdrom'>
+      <driver name='qemu' type='raw'/>
+      <source file='/home/jonatan/Downloads/CentOS-7-x86_64-Minimal-1708.iso'/>
+      <target dev='hda' bus='ide'/>
+      <readonly/>
+      <boot order='2'/>
+      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+    </disk>
+    <controller type='usb' index='0' model='ich9-ehci1'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x7'/>
+    </controller>
+    <controller type='usb' index='0' model='ich9-uhci1'>
+      <master startport='0'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0' multifunction='on'/>
+    </controller>
+    <controller type='usb' index='0' model='ich9-uhci2'>
+      <master startport='2'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/>
+    </controller>
+    <controller type='usb' index='0' model='ich9-uhci3'>
+      <master startport='4'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x2'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'/>
+    <controller type='ide' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+    <controller type='virtio-serial' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
+    </controller>
+    <interface type='network'>
+      <mac address='52:54:00:12:ce:50'/>
+      <source network='default'/>
+      <model type='virtio'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+    </interface>
+    <serial type='pty'>
+      <target port='0'/>
+    </serial>
+    <console type='pty'>
+      <target type='serial' port='0'/>
+    </console>
+    <channel type='unix'>
+      <target type='virtio' name='org.qemu.guest_agent.0'/>
+      <address type='virtio-serial' controller='0' bus='0' port='1'/>
+    </channel>
+    <channel type='spicevmc'>
+      <target type='virtio' name='com.redhat.spice.0'/>
+      <address type='virtio-serial' controller='0' bus='0' port='2'/>
+    </channel>
+    <input type='tablet' bus='usb'>
+      <address type='usb' bus='0' port='1'/>
+    </input>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <graphics type='spice' autoport='yes'>
+      <listen type='address'/>
+      <image compression='off'/>
+    </graphics>
+    <sound model='ich6'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+    </sound>
+    <video>
+      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+    </video>
+    <redirdev bus='usb' type='spicevmc'>
+      <address type='usb' bus='0' port='2'/>
+    </redirdev>
+    <redirdev bus='usb' type='spicevmc'>
+      <address type='usb' bus='0' port='3'/>
+    </redirdev>
+    <memballoon model='virtio'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
+    </memballoon>
+  </devices>
+</domain>
diff --git a/qcow2-copy.sh b/qcow2-copy.sh
new file mode 100644
index 0000000..46174de
--- /dev/null
+++ b/qcow2-copy.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+
+image=${1}
+uuid=${2}
+from=${3}
+to=${4}
+
+i=0
+
+tmp_dir=$(mktemp -d)
+
+while 1; do
+    if [ ! -f "/dev/nbd${i}"]; then
+        break
+    fi
+    i=((i + 1))
+done
+
+qemu-nbd --connect="/dev/nbd${i}" "${image}"
+
+mount UUID="${uuid}" "${tmp_dir}"
+
+cp -R -v "${from}" "${tmp_dir}${to}"
+
+if umount "${tmp_dir}"; then
+    rm -f -d "${tmp_dir}"
+fi
+
+
diff --git a/test.py b/test.py
new file mode 100755
index 0000000..de209a4
--- /dev/null
+++ b/test.py
@@ -0,0 +1,868 @@
+#!/usr/bin/python3
+
+import serial
+
+import re
+from time import sleep
+import sys
+
+import libvirt
+
+import xml.etree.ElementTree as ET
+
+import inspect
+import os
+
+import configparser
+
+class log():
+    def __init__(self, log_level):
+        self.log_level = log_level
+
+    def debug(self, string):
+        if self.log_level >= 4:
+            print("DEBUG: {}".format(string))
+
+    def error(self, string):
+        print("ERROR: {}".format(string))
+
+class libvirt_con():
+    def __init__(self, uri):
+        self.log = log(4)
+        self.uri = uri
+        self.connection = None
+
+    def get_domain_from_name(self, name):
+        dom = self.con.lookupByName(name)
+
+        if dom == None:
+            raise BaseException
+        return dom
+
+    @property
+    def con(self):
+        if self.connection == None:
+            try:
+                self.connection = libvirt.open(self.uri)
+            except BaseException as error:
+                self.log.error("Could not connect to: {}".format(self.uri))
+
+            self.log.debug("Connected to: {}".format(self.uri))
+            return self.connection
+
+        return self.connection
+
+
+class vm():
+    def __init__(self, vm_xml_file, snapshot_xml_file, image, root_uid):
+        self.log = log(4)
+        self.con = libvirt_con("qemu:///system")
+        try:
+            with open(vm_xml_file) as fobj:
+                self.vm_xml = fobj.read()
+        except FileNotFoundError as error:
+            self.log.error("No such file: {}".format(vm_xml_file))
+
+        try:
+            with open(snapshot_xml_file) as fobj:
+                self.snapshot_xml = fobj.read()
+        except FileNotFoundError as error:
+            self.log.error("No such file: {}".format(snapshot_xml_file))
+
+        self.image = image
+
+        if not os.path.isfile(self.image):
+            self.log.error("No such file: {}".format(self.settings_file))
+
+        self.root_uid = root_uid
+
+    def define(self):
+        self.dom = self.con.con.defineXML(self.vm_xml)
+        if self.dom == None:
+            self.log.error("Could not define VM")
+            raise BaseException
+
+    def start(self):
+        if self.dom.create() < 0:
+            self.log.error("Could not start VM")
+            raise BaseException
+
+    def shutdown(self):
+        if self.is_running():
+            if self.dom.shutdown() < 0:
+                self.log.error("Could not shutdown VM")
+                raise BaseException
+        else:
+            self.log.error("Domain is not running")
+
+    def undefine(self):
+        self.dom.undefine()
+
+    def create_snapshot(self):
+
+        self.snapshot = self.dom.snapshotCreateXML(self.snapshot_xml)
+
+        if not self.snapshot:
+            self.log.error("Could not create snapshot")
+            raise BaseException
+
+    def revert_snapshot(self):
+        print(inspect.getmembers(self.dom, predicate=inspect.ismethod))
+        self.dom.revertToSnapshot(self.snapshot)
+        #self.dom.SnapshotDelete(self.snapshot)
+
+    def is_running(self):
+
+        state, reason = self.dom.state()
+
+        if state == libvirt.VIR_DOMAIN_RUNNING:
+            return True
+        else:
+            return False
+
+    def get_serial_device(self):
+
+        if not self.is_running():
+            raise BaseException
+
+        xml_root = ET.fromstring(self.dom.XMLDesc(0))
+
+        elem = xml_root.find("./devices/serial/source")
+        return elem.get("path")
+
+    def check_is_booted_up(self):
+        serial_con = connection(self.get_serial_device())
+
+        serial_con.write("\n")
+        # This will block till the domain is booted up
+        serial_con.read(1)
+
+        #serial_con.close()
+
+    def login(self, username, password):
+        try:
+            self.serial_con = connection(self.get_serial_device(), username="root")
+            self.serial_con.login("25814@root")
+        except BaseException as e:
+            self.log.error("Could not connect to the domain via serial console")
+
+    def cmd(self, cmd):
+        return self.serial_con.command(cmd)
+
+
+
+
+
+# try:
+#     dom = conn.lookupByUUIDString(uuid)
+# except:
+#     flash(u"Failed to get the domain object", 'alert-danger')
+#     print('Failed to get the domain object', file=sys.stderr)
+#     conn.close()
+#     return redirect("/vm")
+
+# domname = dom.name()
+# if action == "start":
+#     try:
+#         dom.create()
+#     except:
+#         flash(u"Can not boot guest domain.", 'alert-danger')
+#         print('Can not boot guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully started Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "shutdown":
+#     try:
+#         dom.shutdown()
+#     except:
+#         flash(u"Can not shutdown guest domain.", 'alert-danger')
+#         print('Can not shutdown guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully shutdowned Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "destroy":
+#     try:
+#         dom.destroy()
+#     except:
+#         flash(u"Can not destroy guest domain.", 'alert-danger')
+#         print('Can not destroy guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully destroyed Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "pause":
+#     try:
+#         dom.suspend()
+#     except:
+#         flash(u"Can not pause guest domain.", 'alert-danger')
+#         print('Can not pause guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully paused Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "resume":
+#     try:
+#         dom.resume()
+#     except:
+#         flash(u"Can not eesume guest domain.:", 'alert-danger')
+#         print('Can not resume guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully resumed Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# else:
+#     flash(u"No such action: \"{}\"".format(action), 'alert-warning')
+#     conn.close()
+#     return redirect("/vm")
+
+
+# @vms.route('/vm')
+# @login_required
+# def vm_overview():
+#     import sys
+#     import libvirt
+#     conn = libvirt.open('qemu:///system')
+#     doms = conn.listAllDomains(0)
+#     domains = []
+
+#     if len(doms) != 0:
+#         for dom in doms:
+#             domain = {}
+#             domain.setdefault("name", dom.name())
+#             domain.setdefault("uuid", dom.UUIDString())
+#             state, reason = dom.state()
+#             domain.setdefault("state", dom_state(state))
+#             domains.append(domain)
+
+#     conn.close()
+
+#     return render_template("virtberry_vm_basic-vm.html", domains=domains)
+
+
+
+class connection():
+    def __init__(self, device, username=None):
+        self.buffer = b""
+        self.back_at_prompt_pattern =  None
+        self.username = username
+        self.log = log(1)
+        self.con = serial.Serial(device)
+        # # Just press enter one time to see what we get
+        # self.con.write(b'\n')
+        # # We get two new lines \r\n ?
+        # data = self.readline()
+        # self.log_console_line(data.decode())
+
+
+        # if not self.back_at_prompt():
+        #     self.log.debug("We need to login")
+        #     if not self.login(password):
+        #         self.log.error("Login failed")
+        #         return False
+        # else:
+        #     self.log.debug("We are logged in")
+
+
+        '''      in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        print(data)
+        print(data.decode(),end='')
+
+        string = 'root\n'
+        self.con.write(string.encode())
+        self.con.flush() '''
+
+        ''' in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        print(data)
+        print(data.decode(), end='')
+
+        string = '25814@root\n'
+        self.con.write(string.encode())
+        self.con.flush()
+
+        in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        print(data)
+        print(data.decode(), end='') '''
+
+        # check if we already logged in
+        # If we we get something like [root@localhost ~]#
+        #self.readline()
+
+       # if not self.check_logged_in(username):
+            #print("Try to login")
+            #if self.login(username, password):
+            #    print("Could not login")
+            #    return False
+
+        #pattern = "^\[" + username + "@.+\]#"
+        #print(pattern)
+        #data = self.readline(pattern=pattern)
+        #if data["return-code"] == 1:
+       #         print("We are logged in")
+       # else:
+         #      print("We are  not logged in")
+               # login
+
+        #while 1:
+            #data = self.readline("^.*login:")
+           # if data["return-code"] == 1:
+             #   break
+
+        # string = 'cd / && ls \n'
+        # self.con.write(string.encode())
+        # self.con.flush()
+        # #print(self.con.read(5))
+
+        # data = self.readline()
+        # self.log_console_line(data.decode())
+
+        # while not self.back_at_prompt():
+        #     data = self.readline()
+        #     self.log_console_line(data.decode())
+
+        ''' in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        data = data.decode()
+
+        pattern = "^\[" + username + "@.+\]# $"
+        pattern = re.compile(pattern, re.MULTILINE)
+        if pattern.match(data, re.MULTILINE):
+            print("It works")
+
+        print(data, end='') '''
+
+
+    #@property
+    #def con(self):
+    #    return self.con
+
+
+    def read(self, size=1):
+        if len(self.buffer) >= size:
+            # throw away first size bytes in buffer
+            data =  self.buffer[:size]
+            # Set the buffer to the non used bytes
+            self.buffer = self.buffer[size:]
+            return data
+        else:
+            data = self.buffer
+            # Set the size to the value we have to read now
+            size = size - len(self.buffer)
+            # Set the buffer empty
+            self.buffer = b""
+            return data + self.con.read(size)
+
+    def peek(self, size=1):
+        if len(self.buffer) <= size:
+            self.buffer += self.con.read(size=size - len(self.buffer))
+
+        return self.buffer[:size]
+
+    def readline(self):
+        self.log.debug(self.buffer)
+        self.buffer = self.buffer + self.con.read(self.con.in_waiting)
+        if b"\n" in self.buffer:
+            size = self.buffer.index(b"\n") + 1
+            self.log.debug("We have a whole line in the buffer")
+            self.log.debug(self.buffer)
+            self.log.debug("We split at {}".format(size))
+            data = self.buffer[:size]
+            self.buffer = self.buffer[size:]
+            self.log.debug(data)
+            self.log.debug(self.buffer)
+            return data
+
+        data = self.buffer
+        self.buffer = b""
+        return data + self.con.readline()
+
+    def back_at_prompt(self):
+        data = self.peek()
+        if not data == b"[":
+            return False
+
+        # We need to use self.in_waiting because with self.con.in_waiting we get
+        # not the complete string
+        size = len(self.buffer) + self.in_waiting
+        data = self.peek(size)
+
+
+        if self.back_at_prompt_pattern == None:
+            #self.back_at_prompt_pattern = r"^\[{}@.+\]#".format(self.username)
+            self.back_at_prompt_pattern = re.compile(r"^\[{}@.+\]#".format(self.username), re.MULTILINE)
+
+        if self.back_at_prompt_pattern.search(data.decode()):
+            return True
+        else:
+            return False
+
+    def log_console_line(self, line):
+        self.log.debug("Get in function log_console_line()")
+        sys.stdout.write(line)
+
+    @property
+    def in_waiting(self):
+        in_waiting_before = 0
+        sleep(0.5)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        return self.con.in_waiting
+
+
+    def readline2(self, pattern=None):
+        string = ""
+        string2 = b""
+        if pattern:
+            pattern = re.compile(pattern)
+
+        while 1:
+            char = self.con.read(1)
+            string = string + char.decode("utf-8")
+            string2 = string2 + char
+            #print(char)
+            print(char.decode("utf-8"), end="")
+
+            #print(string2)
+            if pattern and pattern.match(string):
+               #print("get here1")
+               #print(string2)
+               return {"string" : string, "return-code" : 1}
+
+            if char == b"\n":
+                #print(char)
+                #print(string2)
+                #print("get here2")
+                return {"return-code" : 0}
+
+    def check_logged_in(self, username):
+        pattern = "^\[" + username + "@.+\]#"
+        data = self.readline(pattern=pattern)
+        if data["return-code"] == 1:
+                print("We are logged in")
+                return True
+        else:
+            print("We are  not logged in")
+            return False
+
+    def login(self, password):
+        if self.username == None:
+            self.log.error("Username cannot be blank")
+            return False
+
+        # Hit enter to see what we get
+        self.con.write(b'\n')
+        # We get two new lines \r\n ?
+        data = self.readline()
+        self.log_console_line(data.decode())
+
+
+        if self.back_at_prompt():
+            self.log.debug("We are already logged in.")
+            return True
+
+        # Read all line till we get login:
+        while 1:
+            data = self.peek()
+            if not data.decode() == "l":
+                self.log.debug("We get no l at the start")
+                self.log_console_line(self.readline().decode())
+
+            # We need to use self.in_waiting because with self.con.in_waiting we get
+            # not the complete string
+            size = len(self.buffer) + self.in_waiting
+            data = self.peek(size)
+
+            pattern = r"^.*login: "
+            pattern = re.compile(pattern)
+
+            if pattern.search(data.decode()):
+                break
+            else:
+                self.log.debug("The pattern does not match")
+                self.log_console_line(self.readline().decode())
+
+        # We can login
+        string = "{}\n".format(self.username)
+        self.con.write(string.encode())
+        self.con.flush()
+        # read the login out of the buffer
+        data = self.readline()
+        self.log.debug("This is the login:{}".format(data))
+        self.log_console_line(data.decode())
+
+        # We need to wait her till we get the full string "Password:"
+        #This is useless but self.in_waiting will wait the correct amount of time
+        size = self.in_waiting
+
+        string = "{}\n".format(password)
+        self.con.write(string.encode())
+        self.con.flush()
+        # Print the 'Password:' line
+        data = self.readline()
+        self.log_console_line(data.decode())
+
+        while not self.back_at_prompt():
+            # This will fail if the login failed so we need to look for the failed keyword
+            data = self.readline()
+            self.log_console_line(data.decode())
+
+        return True
+
+    def write(self, string):
+        self.log.debug(string)
+        self.con.write(string.encode())
+        self.con.flush()
+
+    def command(self, command):
+        self.write("{}\n".format(command))
+
+        # We need to read out the prompt for this command first
+        # If we do not do this we will break the loop immediately
+        # because the prompt for this command is still in the buffer
+        data = self.readline()
+        self.log_console_line(data.decode())
+
+        while not self.back_at_prompt():
+            data = self.readline()
+            self.log_console_line(data.decode())
+
+
+#    while True:
+
+#        line = self.readline()
+
+#        print (line)
+
+#        print("Hello")
+
+#        print("World")
+
+#        Hello
+#        World
+
+#        Hello World
+
+#        # Peek for prompt?
+#        if self.back_at_prompt():
+#            break
+
+# def back_at_prompt():
+#     data = self.peek()
+
+#     if not char == "[":
+#         return False
+
+#     data = self.peek(in_waiting)
+#     m = re.search(..., data)
+#     if m:
+#         return True
+
+
+
+
+
+# pattern = r"^\[root@.+\]#"
+
+# pattern = re.compile(pattern, re.MULTILINE)
+
+# data = """cd / && ls
+# bin   dev  home  lib64	     media  opt   root	sbin  sys  usr
+# boot  etc  lib	 lost+found  mnt    proc  run	srv   tmp  var
+# [root@localhost /]# """
+
+# #data = "[root@localhost /]# "
+# data2 = pattern.search(data)
+
+# #if pattern.search(data):
+#    # print("get here")
+
+# #print(data2.group())
+
+
+
+# vm = vm("qemu:///system")
+
+# dom = vm.domain_start_from_xml_file("/home/jonatan/python-testing-kvm/centos2.xml")
+
+# # This block till the vm is booted
+# print("Waiting till the domain is booted up")
+# vm.check_domain_is_booted_up(dom)
+# print("Domain is booted up")
+# #vm.domain_get_serial_device(dom)
+# #vm.domain_get_serial_device(dom)
+
+# #centos2 = vm("/home/jonatan/python-testing-kvm/centos2.xml", "/home/jonatan/python-testing-kvm/centos2-snapshot.xml")
+
+# centos2.define()
+# centos2.create_snapshot()
+# centos2.start()
+# #centos2.check_is_booted_up()
+# centos2.login("root", "25814@root")
+# centos2.cmd("echo 1 > test3")
+
+
+# #versuch1 = connection(centos2.get_serial_device, username="root")
+# #versuch1.login()
+# #versuch1.command("cd / && ls")
+
+# input("Press Enter to continue...")
+# centos2.shutdown()
+# centos2.revert_snapshot()
+# centos2.undefine()
+
+# A class which define and undefine a virtual network based on an xml file
+class network():
+    def __init__(self, path):
+        self.log = log(4)
+        self.log.debug("Path is: {}".format(path))
+
+# Should read the test, check if the syntax are valid
+# and return tuples with the ( host, command ) structure
+class recipe():
+    def __init__(self, path):
+        self.log = log(4)
+        self.recipe_file = path
+        if not os.path.isfile(self.recipe_file):
+            self.log.error("No such file: {}".format(self.recipe_file))
+
+        try:
+            with open(self.recipe_file) as fobj:
+                self.raw_recipe = fobj.readlines()
+        except FileNotFoundError as error:
+            self.log.error("No such file: {}".format(vm_xml_file))
+
+        for line in self.raw_recipe:
+            print(line)
+
+
+
+class test():
+    def __init__(self, path):
+        self.log = log(4)
+        try:
+            self.path = os.path.abspath(path)
+        except BaseException as e:
+            self.log.error("Could not get absolute path")
+
+        self.log.debug(self.path)
+
+        self.settings_file = "{}/settings".format(self.path)
+        if not os.path.isfile(self.settings_file):
+            self.log.error("No such file: {}".format(self.settings_file))
+
+        self.recipe_file = "{}/recipe".format(self.path)
+        if not os.path.isfile(self.recipe_file):
+            self.log.error("No such file: {}".format(self.recipe_file))
+
+    def read_settings(self):
+        self.config = configparser.ConfigParser()
+        self.config.read(self.settings_file)
+        self.name = self.config["DEFAULT"]["Name"]
+        self.description = self.config["DEFAULT"]["Description"]
+
+        self.virtual_environ_name = self.config["VIRTUAL_ENVIRONMENT"]["Name"]
+        self.virtual_environ_path = self.config["VIRTUAL_ENVIRONMENT"]["Path"]
+        self.virtual_environ_path = os.path.normpath(self.path + "/" + self.virtual_environ_path)
+
+    def virtual_environ_setup(self):
+        self.virtual_environ = virtual_environ(self.virtual_environ_path)
+
+        self.virtual_networks = self.virtual_environ.get_networks()
+
+        self.virtual_machines = self.virtual_environ.get_machines()
+
+    def virtual_environ_start(self):
+        pass
+
+    def load_recipe(self):
+        pass
+
+    def run_recipe():
+        pass
+
+    def virtual_environ_stop():
+        pass
+
+
+
+
+# Should return all vms and networks in a list
+# and should provide the path to the necessary xml files
+class virtual_environ():
+    def __init__(self, path):
+        self.log = log(4)
+        try:
+            self.path = os.path.abspath(path)
+        except BaseException as e:
+            self.log.error("Could not get absolute path")
+
+        self.log.debug(self.path)
+
+        self.settings_file = "{}/settings".format(self.path)
+        if not os.path.isfile(self.settings_file):
+            self.log.error("No such file: {}".format(self.settings_file))
+
+        self.log.debug(self.settings_file)
+        self.config = configparser.ConfigParser()
+        self.config.read(self.settings_file)
+        self.name = self.config["DEFAULT"]["name"]
+        self.machines_string = self.config["DEFAULT"]["machines"]
+        self.networks_string = self.config["DEFAULT"]["networks"]
+
+        self.machines = []
+        for machine in self.machines_string.split(","):
+            self.machines.append(machine.strip())
+
+        self.networks = []
+        for network in self.networks_string.split(","):
+            self.networks.append(network.strip())
+
+        self.log.debug(self.machines)
+        self.log.debug(self.networks)
+
+    def get_networks(self):
+        networks = {}
+        for _network in self.networks:
+            self.log.debug(_network)
+            networks.setdefault(_network, network(os.path.normpath(self.path + "/" + self.config[_network]["xml_file"])))
+        return networks
+
+    def get_machines(self):
+        machines = {}
+        for _machine in self.machines:
+            self.log.debug(_machine)
+            machines.setdefault(_machine, vm(
+                os.path.normpath(self.path + "/" + self.config[_machine]["xml_file"]),
+                os.path.normpath(self.path + "/" + self.config[_machine]["snapshot_xml_file"])))
+
+        return machines
+
+
+
+
+
+# def command(self, command):
+#     self._send_command(command)
+
+#    while True:
+#        line = self.readline()
+
+#        print (line)
+
+#        print("Hello")
+
+#        print("World")
+
+#        Hello
+#        World
+
+#        Hello World
+
+#        # Peek for prompt?
+#        if self.back_at_prompt():
+#            break
+
+# def back_at_prompt():
+#     data = self.peek()
+
+#     if not char == "[":
+#         return False
+
+#     data = self.peek(in_waiting)
+#     m = re.search(..., data)
+#     if m:
+#         return True
+
+
+
+
+
+# class connection()
+#     buffer = b""
+
+#     def read(self, size=1):
+#         if len(buffer) >= size:
+#             # throw away first size bytes in buffer
+#             data, buffer = buffer[:size], buffer[size:]
+#             return data
+
+#         return self.serial.read(size)
+
+#     def peek(self, size=1):
+#         if len(buffer) <= size:
+#             buffer += self.serial.read(size=size - len(buffer))
+
+#         return buffer[:size]
+
+
+#     def readline(self):
+#         buffer = buffer + self.serial.read(in_wating)
+#         if "\n" in buffer:
+#             return alle zeichen bis zum \n
+
+#         return buffer + self.serial.readline()
+
+
+if __name__ == "__main__":
+    import argparse
+
+    parser = argparse.ArgumentParser()
+
+    parser.add_argument("-d", "--directory", dest="dir")
+
+    args = parser.parse_args()
+
+    _recipe = recipe("/home/jonatan/python-testing-kvm/test/recipe")
+    currenttest = test(args.dir)
+    currenttest.read_settings()
+    currenttest.virtual_environ_setup()
\ No newline at end of file
diff --git a/test/recipe b/test/recipe
new file mode 100644
index 0000000..47a1591
--- /dev/null
+++ b/test/recipe
@@ -0,0 +1,3 @@
+alice: echo "Hello World"
+bob: echo "Hello World"
+all: echo "Hello World, at all machines"
\ No newline at end of file
diff --git a/test/settings b/test/settings
new file mode 100644
index 0000000..616e1a0
--- /dev/null
+++ b/test/settings
@@ -0,0 +1,9 @@
+[DEFAULT]
+Name = Hello World
+Description = This is a
+    short description.
+
+[VIRTUAL_ENVIRONMENT]
+Name = basic
+path = ../virtual-environment/basic
+
diff --git a/test2.py b/test2.py
new file mode 100755
index 0000000..b82dbc0
--- /dev/null
+++ b/test2.py
@@ -0,0 +1,651 @@
+#!/usr/bin/python3
+
+import serial
+
+import re
+from time import sleep
+import sys
+
+import libvirt
+
+import xml.etree.ElementTree as ET
+
+class test():
+    def __init__(self, name):
+        pass
+
+    def read_settings(self):
+        pass
+
+class log():
+    def __init__(self, log_level):
+        self.log_level = log_level
+
+    def debug(self, string):
+        if self.log_level >= 4:
+            print("DEBUG: {}".format(string))
+
+    def error(self, string):
+        print("ERROR: {}".format(string))
+
+class vm():
+    def __init__(self, uri):
+        self.log = log(4)
+        try:
+            self.con = libvirt.open(uri)
+        except BaseException as error:
+            self.log.error("Could not connect to: {}".format(uri))
+
+        self.log.debug("Connected to: {}".format(uri))
+
+    def get_domain_from_name(self, name):
+        dom = self.con.lookupByName(name)
+
+        if dom == None:
+            raise BaseException
+
+        return dom
+
+    def domain_is_running(self, dom):
+        if dom == None:
+            return False
+
+        state, reason = dom.state()
+
+        if state == libvirt.VIR_DOMAIN_RUNNING:
+            return True
+        else:
+            return False
+
+    def domain_get_serial_device(self, dom):
+        if dom == None:
+            raise BaseException
+
+        if not self.domain_is_running(dom):
+            raise BaseException
+
+        xml_root = ET.fromstring(dom.XMLDesc(0))
+
+        elem = xml_root.find("./devices/serial/source")
+        return elem.get("path")
+
+    def domain_start_from_xml(self, xml):
+        dom = self.con.createXML(xml, 0)
+        if dom == None:
+            self.log.error("Failed to create the VM")
+            raise BaseException
+
+        return dom
+
+    def domain_start_from_xml_file(self, file):
+        try:
+            fobj = open(file)
+        except FileNotFoundError as error:
+            self.log.error("No such file: {}".format(file))
+
+        return self.domain_start_from_xml(fobj.read())
+
+    def check_domain_is_booted_up(self, dom):
+        serial_con = connection(self.domain_get_serial_device(dom))
+
+        serial_con.write("\n")
+        # This will block till the domain is booted up
+        serial_con.read(1)
+
+
+
+
+
+# try:
+#     dom = conn.lookupByUUIDString(uuid)
+# except:
+#     flash(u"Failed to get the domain object", 'alert-danger')
+#     print('Failed to get the domain object', file=sys.stderr)
+#     conn.close()
+#     return redirect("/vm")
+
+# domname = dom.name()
+# if action == "start":
+#     try:
+#         dom.create()
+#     except:
+#         flash(u"Can not boot guest domain.", 'alert-danger')
+#         print('Can not boot guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully started Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "shutdown":
+#     try:
+#         dom.shutdown()
+#     except:
+#         flash(u"Can not shutdown guest domain.", 'alert-danger')
+#         print('Can not shutdown guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully shutdowned Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "destroy":
+#     try:
+#         dom.destroy()
+#     except:
+#         flash(u"Can not destroy guest domain.", 'alert-danger')
+#         print('Can not destroy guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully destroyed Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "pause":
+#     try:
+#         dom.suspend()
+#     except:
+#         flash(u"Can not pause guest domain.", 'alert-danger')
+#         print('Can not pause guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully paused Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# elif action == "resume":
+#     try:
+#         dom.resume()
+#     except:
+#         flash(u"Can not eesume guest domain.:", 'alert-danger')
+#         print('Can not resume guest domain.', file=sys.stderr)
+#         conn.close()
+#         return redirect("/vm")
+
+#     flash(u"Sucessfully resumed Domain \"{}\"".format(domname), 'alert-info')
+#     conn.close()
+#     return redirect("/vm")
+
+# else:
+#     flash(u"No such action: \"{}\"".format(action), 'alert-warning')
+#     conn.close()
+#     return redirect("/vm")
+
+
+# @vms.route('/vm')
+# @login_required
+# def vm_overview():
+#     import sys
+#     import libvirt
+#     conn = libvirt.open('qemu:///system')
+#     doms = conn.listAllDomains(0)
+#     domains = []
+
+#     if len(doms) != 0:
+#         for dom in doms:
+#             domain = {}
+#             domain.setdefault("name", dom.name())
+#             domain.setdefault("uuid", dom.UUIDString())
+#             state, reason = dom.state()
+#             domain.setdefault("state", dom_state(state))
+#             domains.append(domain)
+
+#     conn.close()
+
+#     return render_template("virtberry_vm_basic-vm.html", domains=domains)
+
+
+
+class connection():
+    def __init__(self, device, username=None):
+        self.buffer = b""
+        self.back_at_prompt_pattern =  None
+        self.username = username
+        self.log = log(1)
+        self.con = serial.Serial(device)
+        # # Just press enter one time to see what we get
+        # self.con.write(b'\n')
+        # # We get two new lines \r\n ?
+        # data = self.readline()
+        # self.log_console_line(data.decode())
+
+
+        # if not self.back_at_prompt():
+        #     self.log.debug("We need to login")
+        #     if not self.login(password):
+        #         self.log.error("Login failed")
+        #         return False
+        # else:
+        #     self.log.debug("We are logged in")
+
+
+        '''      in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        print(data)
+        print(data.decode(),end='')
+
+        string = 'root\n'
+        self.con.write(string.encode())
+        self.con.flush() '''
+
+        ''' in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        print(data)
+        print(data.decode(), end='')
+
+        string = '25814@root\n'
+        self.con.write(string.encode())
+        self.con.flush()
+
+        in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        print(data)
+        print(data.decode(), end='') '''
+
+        # check if we already logged in
+        # If we we get something like [root@localhost ~]#
+        #self.readline()
+
+       # if not self.check_logged_in(username):
+            #print("Try to login")
+            #if self.login(username, password):
+            #    print("Could not login")
+            #    return False
+
+        #pattern = "^\[" + username + "@.+\]#"
+        #print(pattern)
+        #data = self.readline(pattern=pattern)
+        #if data["return-code"] == 1:
+       #         print("We are logged in")
+       # else:
+         #      print("We are  not logged in")
+               # login
+
+        #while 1:
+            #data = self.readline("^.*login:")
+           # if data["return-code"] == 1:
+             #   break
+
+        # string = 'cd / && ls \n'
+        # self.con.write(string.encode())
+        # self.con.flush()
+        # #print(self.con.read(5))
+
+        # data = self.readline()
+        # self.log_console_line(data.decode())
+
+        # while not self.back_at_prompt():
+        #     data = self.readline()
+        #     self.log_console_line(data.decode())
+
+        ''' in_waiting_before = 0
+        sleep(1)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        print(self.con.in_waiting)
+        data = self.con.read(self.con.in_waiting)
+        data = data.decode()
+
+        pattern = "^\[" + username + "@.+\]# $"
+        pattern = re.compile(pattern, re.MULTILINE)
+        if pattern.match(data, re.MULTILINE):
+            print("It works")
+
+        print(data, end='') '''
+
+
+    #@property
+    #def con(self):
+    #    return self.con
+
+
+    def read(self, size=1):
+        if len(self.buffer) >= size:
+            # throw away first size bytes in buffer
+            data =  self.buffer[:size]
+            # Set the buffer to the non used bytes
+            self.buffer = self.buffer[size:]
+            return data
+        else:
+            data = self.buffer
+            # Set the size to the value we have to read now
+            size = size - len(self.buffer)
+            # Set the buffer empty
+            self.buffer = b""
+            return data + self.con.read(size)
+
+    def peek(self, size=1):
+        if len(self.buffer) <= size:
+            self.buffer += self.con.read(size=size - len(self.buffer))
+
+        return self.buffer[:size]
+
+    def readline(self):
+        self.log.debug(self.buffer)
+        self.buffer = self.buffer + self.con.read(self.con.in_waiting)
+        if b"\n" in self.buffer:
+            size = self.buffer.index(b"\n") + 1
+            self.log.debug("We have a whole line in the buffer")
+            self.log.debug(self.buffer)
+            self.log.debug("We split at {}".format(size))
+            data = self.buffer[:size]
+            self.buffer = self.buffer[size:]
+            self.log.debug(data)
+            self.log.debug(self.buffer)
+            return data
+
+        data = self.buffer
+        self.buffer = b""
+        return data + self.con.readline()
+
+    def back_at_prompt(self):
+        data = self.peek()
+        if not data == b"[":
+            return False
+
+        # We need to use self.in_waiting because with self.con.in_waiting we get
+        # not the complete string
+        size = len(self.buffer) + self.in_waiting
+        data = self.peek(size)
+
+
+        if self.back_at_prompt_pattern == None:
+            #self.back_at_prompt_pattern = r"^\[{}@.+\]#".format(self.username)
+            self.back_at_prompt_pattern = re.compile(r"^\[{}@.+\]#".format(self.username), re.MULTILINE)
+
+        if self.back_at_prompt_pattern.search(data.decode()):
+            return True
+        else:
+            return False
+
+    def log_console_line(self, line):
+        self.log.debug("Get in function log_console_line()")
+        sys.stdout.write(line)
+
+    @property
+    def in_waiting(self):
+        in_waiting_before = 0
+        sleep(0.5)
+
+        while in_waiting_before != self.con.in_waiting:
+            in_waiting_before = self.con.in_waiting
+            sleep(0.5)
+
+        return self.con.in_waiting
+
+
+    def readline2(self, pattern=None):
+        string = ""
+        string2 = b""
+        if pattern:
+            pattern = re.compile(pattern)
+
+        while 1:
+            char = self.con.read(1)
+            string = string + char.decode("utf-8")
+            string2 = string2 + char
+            #print(char)
+            print(char.decode("utf-8"), end="")
+
+            #print(string2)
+            if pattern and pattern.match(string):
+               #print("get here1")
+               #print(string2)
+               return {"string" : string, "return-code" : 1}
+
+            if char == b"\n":
+                #print(char)
+                #print(string2)
+                #print("get here2")
+                return {"return-code" : 0}
+
+    def check_logged_in(self, username):
+        pattern = "^\[" + username + "@.+\]#"
+        data = self.readline(pattern=pattern)
+        if data["return-code"] == 1:
+                print("We are logged in")
+                return True
+        else:
+            print("We are  not logged in")
+            return False
+
+    def login(self, password):
+        if self.username == None:
+            self.log.error("Username cannot be blank")
+            return False
+
+        # Hit enter to see what we get
+        self.con.write(b'\n')
+        # We get two new lines \r\n ?
+        data = self.readline()
+        self.log_console_line(data.decode())
+
+
+        if self.back_at_prompt():
+            self.log.debug("We are already logged in.")
+            return True
+
+        # Read all line till we get login:
+        while 1:
+            data = self.peek()
+            if not data.decode() == "l":
+                self.log.debug("We get no l at the start")
+                self.log_console_line(self.readline().decode())
+
+            # We need to use self.in_waiting because with self.con.in_waiting we get
+            # not the complete string
+            size = len(self.buffer) + self.in_waiting
+            data = self.peek(size)
+
+            pattern = r"^.*login: "
+            pattern = re.compile(pattern)
+
+            if pattern.search(data.decode()):
+                break
+            else:
+                self.log.debug("The pattern does not match")
+                self.log_console_line(self.readline().decode())
+
+        # We can login
+        string = "{}\n".format(self.username)
+        self.con.write(string.encode())
+        self.con.flush()
+        # read the login out of the buffer
+        data = self.readline()
+        self.log.debug("This is the login:{}".format(data))
+        self.log_console_line(data.decode())
+
+        # We need to wait her till we get the full string "Password:"
+        #This is useless but self.in_waiting will wait the correct amount of time
+        size = self.in_waiting
+
+        string = "{}\n".format(password)
+        self.con.write(string.encode())
+        self.con.flush()
+        # Print the 'Password:' line
+        data = self.readline()
+        self.log_console_line(data.decode())
+
+        while not self.back_at_prompt():
+            # This will fail if the login failed so we need to look for the failed keyword
+            data = self.readline()
+            self.log_console_line(data.decode())
+
+        return True
+
+    def write(self, string):
+        self.log.debug(string)
+        self.con.write(string.encode())
+        self.con.flush()
+
+    def command(self, command):
+        self.write("{}\n".format(command))
+
+        # We need to read out the prompt for this command first
+        # If we do not do this we will break the loop immediately
+        # because the prompt for this command is still in the buffer
+        data = self.readline()
+        self.log_console_line(data.decode())
+
+        while not self.back_at_prompt():
+            data = self.readline()
+            self.log_console_line(data.decode())
+
+
+#    while True:
+
+#        line = self.readline()
+
+#        print (line)
+
+#        print("Hello")
+
+#        print("World")
+
+#        Hello
+#        World
+
+#        Hello World
+
+#        # Peek for prompt?
+#        if self.back_at_prompt():
+#            break
+
+# def back_at_prompt():
+#     data = self.peek()
+
+#     if not char == "[":
+#         return False
+
+#     data = self.peek(in_waiting)
+#     m = re.search(..., data)
+#     if m:
+#         return True
+
+
+
+
+
+# pattern = r"^\[root@.+\]#"
+
+# pattern = re.compile(pattern, re.MULTILINE)
+
+# data = """cd / && ls
+# bin   dev  home  lib64	     media  opt   root	sbin  sys  usr
+# boot  etc  lib	 lost+found  mnt    proc  run	srv   tmp  var
+# [root@localhost /]# """
+
+# #data = "[root@localhost /]# "
+# data2 = pattern.search(data)
+
+# #if pattern.search(data):
+#    # print("get here")
+
+# #print(data2.group())
+
+
+
+vm = vm("qemu:///system")
+
+dom = vm.domain_start_from_xml_file("/home/jonatan/python-testing-kvm/centos2.xml")
+
+# This block till the vm is booted
+print("Waiting till the domain is booted up")
+vm.check_domain_is_booted_up(dom)
+print("Domain is booted up")
+#vm.domain_get_serial_device(dom)
+#vm.domain_get_serial_device(dom)
+
+versuch1 = connection(vm.domain_get_serial_device(dom), username="root")
+versuch1.login("25814@root")
+versuch1.command("cd / && ls")
+
+
+# def command(self, command):
+#     self._send_command(command)
+
+#    while True:
+#        line = self.readline()
+
+#        print (line)
+
+#        print("Hello")
+
+#        print("World")
+
+#        Hello
+#        World
+
+#        Hello World
+
+#        # Peek for prompt?
+#        if self.back_at_prompt():
+#            break
+
+# def back_at_prompt():
+#     data = self.peek()
+
+#     if not char == "[":
+#         return False
+
+#     data = self.peek(in_waiting)
+#     m = re.search(..., data)
+#     if m:
+#         return True
+
+
+
+
+
+# class connection()
+#     buffer = b""
+
+#     def read(self, size=1):
+#         if len(buffer) >= size:
+#             # throw away first size bytes in buffer
+#             data, buffer = buffer[:size], buffer[size:]
+#             return data
+
+#         return self.serial.read(size)
+
+#     def peek(self, size=1):
+#         if len(buffer) <= size:
+#             buffer += self.serial.read(size=size - len(buffer))
+
+#         return buffer[:size]
+
+
+#     def readline(self):
+#         buffer = buffer + self.serial.read(in_wating)
+#         if "\n" in buffer:
+#             return alle zeichen bis zum \n
+
+#         return buffer + self.serial.readline()
diff --git a/virtual-environment/basic/settings b/virtual-environment/basic/settings
new file mode 100644
index 0000000..f889b51
--- /dev/null
+++ b/virtual-environment/basic/settings
@@ -0,0 +1,18 @@
+[DEFAULT]
+name = Basic
+machines = alice, bob
+networks = network1, network2
+
+[alice]
+xml_file = machines/alice/machine.xml
+snapshot_xml_file = machines/alice/snapshot.xml
+
+[bob]
+xml_file = machines/bob/machine.xml
+snapshot_xml_file = machines/bob/snapshot.xml
+
+[network1]
+xml_file = network/network1/network.xml
+
+[network2]
+xml_file = network/network2/network.xml
\ No newline at end of file
-- 
2.39.2