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Diffstat (limited to 'emulab_support.py')
| -rw-r--r-- | emulab_support.py | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/emulab_support.py b/emulab_support.py deleted file mode 100644 index 99a903c..0000000 --- a/emulab_support.py +++ /dev/null @@ -1,224 +0,0 @@ -# -# Emulab support for Rhumba -# -# Sander Vrijders <sander.vrijders@intec.ugent.be> -# Wouter Tavernier <wouter.tavernier@intec.ugent.be> -# -# This library is free software; you can redistribute it and/or -# modify it under the terms of the GNU Lesser General Public -# License as published by the Free Software Foundation; either -# version 2.1 of the License, or (at your option) any later version. -# -# This library 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 -# Lesser General Public License for more details. -# -# You should have received a copy of the GNU Lesser General Public -# License along with this library; if not, write to the Free Software -# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, -# MA 02110-1301 USA - -import os -import time -import re -from ast import literal_eval -from ssh_support import * - -import warnings -warnings.filterwarnings("ignore") - -def ops_server(testbed): - ''' - Return server name of the ops-server (is testbed specific) - - @param testbed: testbed info - - @return: server name of the ops-server - ''' - return 'ops.' + testbed.url - -def full_name(testbed, node_name): - ''' - Return server name of a node - - @param node_name: name of the node - @param testbed: testbed info - - @return: server name of the node - ''' - return node_name + '.' + testbed.exp_name + '.' + \ - testbed.proj_name + '.' + testbed.url - - -def get_experiment_list(testbed, project_name = None): - ''' - Get list of made emulab experiments accessible with your credentials - - @param testbed: testbed info - @param project_name: optional filter on project - - @return: list of created experiments (strings) - ''' - cmd = '/usr/testbed/bin/sslxmlrpc_client.py -m experiment getlist' - out = execute_command(testbed, ops_server(testbed), cmd) - - try: - if project_name != None: - return literal_eval(out)[project_name][project_name] - else: - return literal_eval(out) - except: - return { project_name: { project_name: [] }} - -def swap_exp_in(testbed): - ''' - Swaps experiment in - - @param testbed: testbed info - ''' - cmd = '/usr/testbed/bin/sslxmlrpc_client.py swapexp proj=' + \ - testbed.proj_name + \ - ' exp=' + \ - testbed.exp_name + \ - ' direction=in' - - output = execute_command(testbed, ops_server(testbed), cmd) - - return output - -def create_experiment(testbed, nodes, links): - ''' - Creates an emulab experiment - - @param testbed: testbed info - @param nodes: holds the nodes in the experiment - @param links: holds the links in the experiment - ''' - proj_name = testbed.proj_name - exp_name = testbed.exp_name - - exp_list = get_experiment_list(testbed) - - try: - if exp_name in exp_list[proj_name][proj_name]: - print("Experiment already exists.") - return - except: - print("First experiment to be created for that project.") - - ns = generate_ns_script(testbed, nodes, links) - dest_file_name = '/users/'+ testbed.username + \ - '/temp_ns_file.%s.ns' % os.getpid() - copy_file_to_testbed(testbed, ops_server(testbed), ns, dest_file_name) - - cmd = '/usr/testbed/bin/sslxmlrpc_client.py startexp ' + \ - 'batch=false wait=true proj="' + proj_name + \ - '" exp="' + exp_name + '" noswapin=true ' + \ - 'nsfilepath="' + dest_file_name + '"' - - execute_command(testbed, ops_server(testbed), cmd, time_out = None) - execute_command(testbed, ops_server(testbed),'rm ' + dest_file_name) - print("New experiment succesfully created.") - -def generate_ns_script(testbed, nodes, p2plinks): - ''' - Generate ns script based on network graph. - Enables to customize default node image. - - @param nodes: holds the nodes in the experiment - @param links: holds the links in the experiment - @param testbed: testbed info - - @return: ns2 script for Emulab experiment - ''' - - ns2_script = "# ns script generated by Rhumba\n" - ns2_script += "set ns [new Simulator]\n" - ns2_script += "source tb_compat.tcl\n" - - for node in nodes: - ns2_script += "set " + node.name + " [$ns node]\n" - ns2_script += "tb-set-node-os $" + node.name + " " + \ - testbed.image + "\n" - - for link in p2plinks: - ns2_script += "set " + link.name + \ - " [$ns duplex-link $" + \ - link.node_a.name + " $" + \ - link.node_b.name + " 1000Mb 0ms DropTail]\n" - - ns2_script += "$ns run\n" - - return ns2_script - -def wait_until_nodes_up(testbed): - ''' - Checks if nodes are up - - @param testbed: testbed info - ''' - print("Waiting until all nodes are up") - - cmd = '/usr/testbed/bin/script_wrapper.py expinfo -e' + \ - testbed.proj_name + \ - ',' + \ - testbed.exp_name + \ - ' -a | grep State | cut -f2,2 -d " "' - - res = execute_command(testbed, ops_server(testbed), cmd) - active = False - if res == "active": - active = True - while active != True: - res = execute_command(testbed, ops_server(testbed), cmd) - if res == "active": - active = True - print("Still waiting") - time.sleep(5) - -def complete_experiment_graph(testbed, nodes, p2plinks): - ''' - Gets the interface (ethx) to link mapping - - @param testbed: testbed info - @param nodes: holds the nodes in the experiment - @param links: holds the links in the experiment - ''' - - node_full_name = full_name(testbed, nodes[0].name) - cmd = 'cat /var/emulab/boot/topomap' - topomap = execute_command(testbed, node_full_name, cmd) - # Almost as ugly as yo momma - index = topomap.rfind("# lans") - topo_array = topomap[:index].split('\\n')[1:-1] - # Array contains things like 'r2b1,link7:10.1.6.3 link6:10.1.5.3' - for item in topo_array: - item_array = re.split(',? ?', item) - node_name = item_array[0] - for item2 in item_array[1:]: - item2 = item2.split(':') - link_name = item2[0] - link_ip = item2[1] - for link in p2plinks: - if link.name == link_name: - if link.node_a.name == node_name: - link.int_a.ip = link_ip - elif link.node_b.name == node_name: - link.int_b.ip = link_ip - - for node in nodes: - cmd = 'cat /var/emulab/boot/ifmap' - node_full_name = full_name(testbed, node.name) - output = execute_command(testbed, node_full_name, cmd) - output = re.split('\\\\n', output) - for item in output: - item = item.split() - for link in p2plinks: - if link.node_a.name == node.name and \ - link.int_a.ip == item[1]: - link.int_a.name = item[0] - elif link.node_b.name == node.name and \ - link.int_b.ip == item[1]: - link.int_b.name = item[0] - node.full_name = full_name(testbed, node.name) |