1 files changed, 176 insertions, 0 deletions
diff --git a/tools/democonf2rumba.py b/tools/democonf2rumba.py
new file mode 100755
index 0000000..9a30174
--- /dev/null
+++ b/tools/democonf2rumba.py
@@ -0,0 +1,176 @@
+#!/usr/bin/env/python
+
+import argparse
+import re
+
+
+def make_experiment(filename, bzImage, initramfs):
+    """
+    :type filename str
+    :param filename: path to the .conf file 
+    :param bzImage: path to the bzImage file
+    :param initramfs: path to the rootfs.cpio file
+    :return: 
+    """
+
+    shims = {}
+    nodes = {}
+    difs = {}
+
+    ex_name = filename.split('/')[-1].split('.')[0]
+
+    print('Reading file %s, under project name %s.' % (filename, ex_name))
+
+    with open(filename, 'r') as conf:
+
+        line_cnt = 0
+
+        while 1:
+            line = conf.readline()
+            if line == '':
+                break
+            line_cnt += 1
+
+            line = line.replace('\n', '').strip()
+
+            if line.startswith('#') or line == "":
+                continue
+
+            m = re.match(r'\s*eth\s+([\w-]+)\s+(\d+)([GMK])bps\s+(\w.*)$', line)
+            if m:
+                shim = m.group(1)
+                speed = int(m.group(2))
+                speed_unit = m.group(3).lower()
+                vm_list = m.group(4).split()
+
+                if shim in shims or shim in difs:
+                    print('Error: Line %d: shim %s already defined'
+                          % (line_cnt, shim))
+                    continue
+
+                if speed_unit == 'K':
+                    speed = speed // 1000
+                if speed_unit == 'G':
+                    speed = speed * 1000
+
+                shims['shim' + shim] = {'name': 'shim' + shim,
+                                        'speed': speed,
+                                        'type': 'eth'}
+
+                for vm in vm_list:
+                    nodes.setdefault(vm, {'name': vm, 'difs': [],
+                                          'dif_registrations': {},
+                                          'registrations': {}})
+                    nodes[vm]['difs'].append(shim)
+                continue
+
+            m = re.match(r'\s*dif\s+([\w-]+)\s+([\w-]+)\s+(\w.*)$', line)
+            if m:
+                dif = m.group(1)
+                vm = m.group(2)
+                dif_list = m.group(3).split()
+
+                if dif in shims:
+                    print('Error: Line %d: dif %s already defined as shim'
+                          % (line_cnt, dif))
+                    continue
+
+                difs.setdefault(dif, {
+                    'name': dif})  # Other dict contents might be policies.
+
+                if vm in nodes and dif in nodes[vm]['dif_registrations']:
+                    print('Error: Line %d: vm %s in dif %s already specified'
+                          % (line_cnt, vm, dif))
+                    continue
+
+                nodes.setdefault(vm, {'name': vm, 'difs': [],
+                                      'dif_registrations': {},
+                                      'registrations': {}})
+                nodes[vm]['difs'].append(dif)
+                nodes[vm]['dif_registrations'] \
+                         [dif] = dif_list
+                # It is not defined yet, per check above.
+
+                continue
+
+            # No match, spit a warning
+            print('Warning: Line %d unrecognized and ignored' % line_cnt)
+
+    # File parsed
+
+    output = '#!/usr/bin/env/python\n\n'
+    output += (
+        "from rumba.model import *\n\n"
+        
+        "# import testbed plugins\n"
+        "import rumba.testbeds.emulab as emulab\n"
+        "import rumba.testbeds.jfed as jfed\n"
+        "import rumba.testbeds.faketestbed as fake\n"
+        "import rumba.testbeds.qemu as qemu\n\n"
+        
+        "# import prototype plugins\n"
+        "import rumba.prototypes.ouroboros as our\n"
+        "import rumba.prototypes.rlite as rl\n"
+        "import rumba.prototypes.irati as irati\n\n"
+    )
+
+    for shim_name, shim in shims.items():
+        output += '%(n)s = ShimEthDIF("%(n)s", link_speed=%(speed)s))\n' \
+                  % {'n': shim_name, 'speed': shim["speed"]}
+
+    output += '\n'
+
+    for dif_name, dif in difs.items():
+        output += '%(n)s = NormalDIF("%(n)s")\n' % {'n': dif_name}
+
+    output += '\n'
+
+    def str_of_list(i):
+        return '[' + ', '.join(i) + ']'
+
+    def str_of_dict(d):
+        return '{' + ', '.join(['%s: %s' % (k, str_of_list(v))
+                                for (k, v) in d.items()]) + '}'
+
+    for node, node_data in nodes.items():
+        name = node_data['name']
+        output += '%(n)s = Node("%(n)s",\n' % {'n': name}
+        output += '    difs=%s,\n' \
+                  % (str_of_list(node_data['difs']))
+        output += '    dif_registrations=%s)\n\n' \
+                  % (str_of_dict(node_data['dif_registrations']))
+
+    output += ('tb = qemu.Testbed(exp_name = "%(ex_name)s",\n'
+               '    bzimage = "%(bzImage)s",\n' 
+               '    initramfs = "%(initramfs)s")\n\n'
+               'exp = rl.Experiment(tb, nodes = [a, b, c, d])\n\n'
+               'print(exp)\n\n'
+               'exp.run()\n'
+               % {'ex_name': ex_name,
+                  'bzImage': bzImage,
+                  'initramfs': initramfs})
+
+    with open(ex_name + '.py', 'w') as out_file:
+        out_file.write(output)
+
+
+if __name__ == '__main__':
+    description = "Demonstrator config file to rumba script converter"
+    epilog = "2017 Marco Capitani <m.capitani@nextworks.it>"
+
+    parser = argparse.ArgumentParser(description=description,
+                                     epilog=epilog)
+    parser.add_argument('config', metavar='CONFIG', type=str,
+                        help='Path to the config file to parse')
+    parser.add_argument('bz_image', metavar='BZIMAGE', type=str,
+                        help='path to the bzImage file to use')
+    parser.add_argument('initramfs', metavar='INITRAMFS', type=str,
+                        help='path to the initramfs file to use')
+
+    args = parser.parse_args()
+
+    try:
+        make_experiment(args.config, args.bz_image, args.initramfs)
+
+    except KeyboardInterrupt:
+        print("Interrupted. Closing down.")