initial commit after bringing over cleaned up code and testing some examples
This commit is contained in:
Blake J. Harnden
parent
c4858e6e0d
commit
00f4ebf5a9
93 changed files with 15189 additions and 13083 deletions
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@ -7,76 +7,62 @@
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# authors: Tom Goff <thomas.goff@boeing.com>
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# Jeff Ahrenholz <jeffrey.m.ahrenholz@boeing.com>
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#
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'''
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core-daemon: the CORE daemon is a server process that receives CORE API
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"""
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core-daemon: the CORE daemon is a server process that receives CORE API
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messages and instantiates emulated nodes and networks within the kernel. Various
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message handlers are defined and some support for sending messages.
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'''
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"""
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import os, optparse, ConfigParser, gc, shlex, socket, shutil
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import ConfigParser
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import atexit
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import signal
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import importlib
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import logging
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import optparse
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import os
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import signal
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import socket
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import sys
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import threading
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import time
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try:
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from core import pycore
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except ImportError:
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# hack for Fedora autoconf that uses the following pythondir:
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if "/usr/lib/python2.6/site-packages" in sys.path:
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sys.path.append("/usr/local/lib/python2.6/site-packages")
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if "/usr/lib64/python2.6/site-packages" in sys.path:
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sys.path.append("/usr/local/lib64/python2.6/site-packages")
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if "/usr/lib/python2.7/site-packages" in sys.path:
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sys.path.append("/usr/local/lib/python2.7/site-packages")
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if "/usr/lib64/python2.7/site-packages" in sys.path:
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sys.path.append("/usr/local/lib64/python2.7/site-packages")
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from core import pycore
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from core.coreserver import *
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from core.constants import *
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from core import constants
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from core import corehandlers
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from core import coreserver
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from core import enumerations
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from core.api import coreapi
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from core.misc.utils import daemonize, closeonexec
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from core.enumerations import MessageFlags
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from core.enumerations import RegisterTlvs
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from core.misc import log
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from core.misc import nodemaps
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from core.misc import nodeutils
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from core.misc.utils import closeonexec
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from core.misc.utils import daemonize
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from core.services import bird
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from core.services import dockersvc
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from core.services import nrl
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from core.services import quagga
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from core.services import security
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from core.services import startup
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from core.services import ucarp
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from core.services import utility
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from core.services import xorp
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DEFAULT_MAXFD = 1024
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# garbage collection debugging
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# gc.set_debug(gc.DEBUG_STATS | gc.DEBUG_LEAK)
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coreapi.add_node_class("CORE_NODE_DEF",
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coreapi.CORE_NODE_DEF, pycore.nodes.CoreNode)
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coreapi.add_node_class("CORE_NODE_PHYS",
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coreapi.CORE_NODE_PHYS, pycore.pnodes.PhysicalNode)
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try:
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coreapi.add_node_class("CORE_NODE_XEN",
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coreapi.CORE_NODE_XEN, pycore.xen.XenNode)
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except Exception:
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#print "XenNode class unavailable."
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pass
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coreapi.add_node_class("CORE_NODE_TBD",
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coreapi.CORE_NODE_TBD, None)
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coreapi.add_node_class("CORE_NODE_SWITCH",
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coreapi.CORE_NODE_SWITCH, pycore.nodes.SwitchNode)
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coreapi.add_node_class("CORE_NODE_HUB",
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coreapi.CORE_NODE_HUB, pycore.nodes.HubNode)
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coreapi.add_node_class("CORE_NODE_WLAN",
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coreapi.CORE_NODE_WLAN, pycore.nodes.WlanNode)
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coreapi.add_node_class("CORE_NODE_RJ45",
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coreapi.CORE_NODE_RJ45, pycore.nodes.RJ45Node)
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coreapi.add_node_class("CORE_NODE_TUNNEL",
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coreapi.CORE_NODE_TUNNEL, pycore.nodes.TunnelNode)
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coreapi.add_node_class("CORE_NODE_EMANE",
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coreapi.CORE_NODE_EMANE, pycore.nodes.EmaneNode)
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#
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# UDP server startup
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#
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#
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def startudp(mainserver, server_address):
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''' Start a thread running a UDP server on the same host,port for
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""" Start a thread running a UDP server on the same host,port for
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connectionless requests.
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'''
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mainserver.udpserver = CoreUdpServer(server_address,
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CoreDatagramRequestHandler, mainserver)
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mainserver.udpthread = threading.Thread(target = mainserver.udpserver.start)
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"""
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mainserver.udpserver = coreserver.CoreUdpServer(
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server_address,
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corehandlers.CoreDatagramRequestHandler,
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mainserver)
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mainserver.udpthread = threading.Thread(target=mainserver.udpserver.start)
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mainserver.udpthread.daemon = True
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mainserver.udpthread.start()
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return mainserver.udpserver
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@ -84,76 +70,76 @@ def startudp(mainserver, server_address):
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#
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# Auxiliary server startup
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#
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#
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def startaux(mainserver, aux_address, aux_handler):
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''' Start a thread running an auxiliary TCP server on the given address.
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""" Start a thread running an auxiliary TCP server on the given address.
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This server will communicate with client requests using a handler
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using the aux_handler class. The aux_handler can provide an alternative
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using the aux_handler class. The aux_handler can provide an alternative
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API to CORE.
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'''
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handlermodname,dot,handlerclassname = aux_handler.rpartition('.')
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"""
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handlermodname, dot, handlerclassname = aux_handler.rpartition(".")
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handlermod = importlib.import_module(handlermodname)
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handlerclass = getattr(handlermod, handlerclassname)
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mainserver.auxserver = CoreAuxServer(aux_address,
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handlerclass,
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mainserver)
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mainserver.auxthread = threading.Thread(target = mainserver.auxserver.start)
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mainserver.auxserver = coreserver.CoreAuxServer(aux_address, handlerclass, mainserver)
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mainserver.auxthread = threading.Thread(target=mainserver.auxserver.start)
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mainserver.auxthread.daemon = True
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mainserver.auxthread.start()
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return mainserver.auxserver
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def banner():
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''' Output the program banner printed to the terminal or log file.
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'''
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sys.stdout.write("CORE daemon v.%s started %s\n" % \
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(COREDPY_VERSION, time.ctime()))
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""" Output the program banner printed to the terminal or log file.
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"""
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sys.stdout.write("CORE daemon v.%s started %s\n" % (constants.COREDPY_VERSION, time.ctime()))
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sys.stdout.flush()
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def cored(cfg = None):
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''' Start the CoreServer object and enter the server loop.
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'''
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host = cfg['listenaddr']
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port = int(cfg['port'])
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if host == '' or host is None:
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def cored(cfg=None):
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""" Start the CoreServer object and enter the server loop.
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"""
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host = cfg["listenaddr"]
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port = int(cfg["port"])
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if host == "" or host is None:
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host = "localhost"
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try:
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server = CoreServer((host, port), CoreRequestHandler, cfg)
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server = coreserver.CoreServer((host, port), corehandlers.CoreRequestHandler, cfg)
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except Exception, e:
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sys.stderr.write("error starting main server on: %s:%s\n\t%s\n" % \
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(host, port, e))
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sys.stderr.write("error starting main server on: %s:%s\n\t%s\n" % (host, port, e))
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sys.stderr.flush()
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sys.exit(1)
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closeonexec(server.fileno())
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sys.stdout.write("main server started, listening on: %s:%s\n" % (host, port))
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sys.stdout.flush()
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udpserver = startudp(server, (host,port))
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udpserver = startudp(server, (host, port))
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closeonexec(udpserver.fileno())
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auxreqhandler = cfg['aux_request_handler']
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auxreqhandler = cfg["aux_request_handler"]
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if auxreqhandler:
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try:
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handler, auxport = auxreqhandler.rsplit(':')
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auxserver = startaux(server, (host,int(auxport)), handler)
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handler, auxport = auxreqhandler.rsplit(":")
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auxserver = startaux(server, (host, int(auxport)), handler)
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closeonexec(auxserver.fileno())
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except Exception as e:
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raise ValueError, "invalid auxreqhandler:(%s)\nError: %s" % (auxreqhandler, e)
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server.serve_forever()
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def cleanup():
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while CoreServer.servers:
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server = CoreServer.servers.pop()
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while coreserver.CoreServer.servers:
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server = coreserver.CoreServer.servers.pop()
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server.shutdown()
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atexit.register(cleanup)
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def sighandler(signum, stackframe):
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print >> sys.stderr, "terminated by signal:", signum
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sys.exit(signum)
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signal.signal(signal.SIGHUP, sighandler)
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signal.signal(signal.SIGINT, sighandler)
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signal.signal(signal.SIGPIPE, sighandler)
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@ -161,7 +147,8 @@ signal.signal(signal.SIGTERM, sighandler)
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signal.signal(signal.SIGUSR1, sighandler)
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signal.signal(signal.SIGUSR2, sighandler)
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def logrotate(stdout, stderr, stdoutmode = 0644, stderrmode = 0644):
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def logrotate(stdout, stderr, stdoutmode=0644, stderrmode=0644):
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def reopen(fileno, filename, mode):
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err = 0
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fd = -1
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@ -175,6 +162,7 @@ def logrotate(stdout, stderr, stdoutmode = 0644, stderrmode = 0644):
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if fd >= 0:
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os.close(fd)
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return err
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if stdout:
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err = reopen(1, stdout, stdoutmode)
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if stderr:
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@ -186,56 +174,57 @@ def logrotate(stdout, stderr, stdoutmode = 0644, stderrmode = 0644):
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else:
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reopen(2, stderr, stderrmode)
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def getMergedConfig(filename):
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''' Return a configuration after merging config file and command-line
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def get_merged_config(filename):
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""" Return a configuration after merging config file and command-line
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arguments.
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'''
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"""
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# these are the defaults used in the config file
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defaults = { 'port' : '%d' % coreapi.CORE_API_PORT,
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'listenaddr' : 'localhost',
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'pidfile' : '%s/run/core-daemon.pid' % CORE_STATE_DIR,
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'logfile' : '%s/log/core-daemon.log' % CORE_STATE_DIR,
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'xmlfilever' : '1.0',
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'numthreads' : '1',
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'verbose' : 'False',
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'daemonize' : 'False',
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'debug' : 'False',
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'execfile' : None,
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'aux_request_handler' : None,
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}
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defaults = {"port": "%d" % enumerations.CORE_API_PORT,
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"listenaddr": "localhost",
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"pidfile": "%s/run/core-daemon.pid" % constants.CORE_STATE_DIR,
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"logfile": "%s/log/core-daemon.log" % constants.CORE_STATE_DIR,
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"xmlfilever": "1.0",
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"numthreads": "1",
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"verbose": "False",
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"daemonize": "False",
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"debug": "False",
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"execfile": None,
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"aux_request_handler": None,
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}
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usagestr = "usage: %prog [-h] [options] [args]\n\n" + \
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"CORE daemon v.%s instantiates Linux network namespace " \
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"nodes." % COREDPY_VERSION
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parser = optparse.OptionParser(usage = usagestr)
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parser.add_option("-f", "--configfile", dest = "configfile",
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type = "string",
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help = "read config from specified file; default = %s" %
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filename)
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parser.add_option("-d", "--daemonize", dest = "daemonize",
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"nodes." % constants.COREDPY_VERSION
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parser = optparse.OptionParser(usage=usagestr)
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parser.add_option("-f", "--configfile", dest="configfile",
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type="string",
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help="read config from specified file; default = %s" %
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filename)
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parser.add_option("-d", "--daemonize", dest="daemonize",
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action="store_true",
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help = "run in background as daemon; default=%s" % \
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defaults["daemonize"])
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parser.add_option("-e", "--execute", dest = "execfile", type = "string",
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help = "execute a Python/XML-based session")
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parser.add_option("-l", "--logfile", dest = "logfile", type = "string",
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help = "log output to specified file; default = %s" %
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defaults["logfile"])
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parser.add_option("-p", "--port", dest = "port", type = int,
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help = "port number to listen on; default = %s" % \
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defaults["port"])
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parser.add_option("-i", "--pidfile", dest = "pidfile",
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help = "filename to write pid to; default = %s" % \
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defaults["pidfile"])
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parser.add_option("-t", "--numthreads", dest = "numthreads", type = int,
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help = "number of server threads; default = %s" % \
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defaults["numthreads"])
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parser.add_option("-v", "--verbose", dest = "verbose", action="store_true",
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help = "enable verbose logging; default = %s" % \
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defaults["verbose"])
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parser.add_option("-g", "--debug", dest = "debug", action="store_true",
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help = "enable debug logging; default = %s" % \
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defaults["debug"])
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help="run in background as daemon; default=%s" % \
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defaults["daemonize"])
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parser.add_option("-e", "--execute", dest="execfile", type="string",
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help="execute a Python/XML-based session")
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parser.add_option("-l", "--logfile", dest="logfile", type="string",
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help="log output to specified file; default = %s" %
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defaults["logfile"])
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parser.add_option("-p", "--port", dest="port", type=int,
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help="port number to listen on; default = %s" % \
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defaults["port"])
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parser.add_option("-i", "--pidfile", dest="pidfile",
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help="filename to write pid to; default = %s" % \
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defaults["pidfile"])
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parser.add_option("-t", "--numthreads", dest="numthreads", type=int,
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help="number of server threads; default = %s" % \
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defaults["numthreads"])
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parser.add_option("-v", "--verbose", dest="verbose", action="store_true",
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help="enable verbose logging; default = %s" % \
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defaults["verbose"])
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parser.add_option("-g", "--debug", dest="debug", action="store_true",
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help="enable debug logging; default = %s" % \
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defaults["debug"])
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# parse command line options
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(options, args) = parser.parse_args()
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@ -253,17 +242,17 @@ def getMergedConfig(filename):
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# gracefully support legacy configs (cored.py/cored now core-daemon)
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if cfg.has_section("cored.py"):
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for name, val in cfg.items("cored.py"):
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if name == 'pidfile' or name == 'logfile':
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bn = os.path.basename(val).replace('coredpy', 'core-daemon')
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if name == "pidfile" or name == "logfile":
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bn = os.path.basename(val).replace("coredpy", "core-daemon")
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val = os.path.join(os.path.dirname(val), bn)
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cfg.set(section, name, val)
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if cfg.has_section("cored"):
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for name, val in cfg.items("cored"):
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if name == 'pidfile' or name == 'logfile':
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bn = os.path.basename(val).replace('cored', 'core-daemon')
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if name == "pidfile" or name == "logfile":
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bn = os.path.basename(val).replace("cored", "core-daemon")
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val = os.path.join(os.path.dirname(val), bn)
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cfg.set(section, name, val)
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# merge command line with config file
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for opt in options.__dict__:
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val = options.__dict__[opt]
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@ -272,41 +261,43 @@ def getMergedConfig(filename):
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return dict(cfg.items(section)), args
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def exec_file(cfg):
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''' Send a Register Message to execute a new session based on XML or Python
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""" Send a Register Message to execute a new session based on XML or Python
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script file.
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'''
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filename = cfg['execfile']
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sys.stdout.write("Telling daemon to execute file: '%s'...\n" % filename)
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"""
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filename = cfg["execfile"]
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sys.stdout.write("Telling daemon to execute file: %s...\n" % filename)
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sys.stdout.flush()
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tlvdata = coreapi.CoreRegTlv.pack(coreapi.CORE_TLV_REG_EXECSRV, filename)
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msg = coreapi.CoreRegMessage.pack(coreapi.CORE_API_ADD_FLAG, tlvdata)
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tlvdata = coreapi.CoreRegisterTlv.pack(RegisterTlvs.EXECUTE_SERVER.value, filename)
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msg = coreapi.CoreRegMessage.pack(MessageFlags.ADD.value, tlvdata)
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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sock.connect(("localhost", int(cfg['port']))) # TODO: connect address option
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sock.connect(("localhost", int(cfg["port"]))) # TODO: connect address option
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sock.sendall(msg)
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return 0
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def main():
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''' Main program startup.
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'''
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# get a configuration merged from config file and command-line arguments
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cfg, args = getMergedConfig("%s/core.conf" % CORE_CONF_DIR)
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for a in args:
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sys.stderr.write("ignoring command line argument: '%s'\n" % a)
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if cfg['daemonize'] == 'True':
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daemonize(rootdir = None, umask = 0, close_fds = False,
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stdin = os.devnull,
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stdout = cfg['logfile'], stderr = cfg['logfile'],
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pidfilename = cfg['pidfile'],
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defaultmaxfd = DEFAULT_MAXFD)
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def main():
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""" Main program startup.
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"""
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# get a configuration merged from config file and command-line arguments
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cfg, args = get_merged_config("%s/core.conf" % constants.CORE_CONF_DIR)
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for a in args:
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sys.stderr.write("ignoring command line argument: %s\n" % a)
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if cfg["daemonize"] == "True":
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daemonize(rootdir=None, umask=0, close_fds=False,
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stdin=os.devnull,
|
||||
stdout=cfg["logfile"], stderr=cfg["logfile"],
|
||||
pidfilename=cfg["pidfile"],
|
||||
defaultmaxfd=DEFAULT_MAXFD)
|
||||
signal.signal(signal.SIGUSR1, lambda signum, stackframe:
|
||||
logrotate(stdout = cfg['logfile'],
|
||||
stderr = cfg['logfile']))
|
||||
logrotate(stdout=cfg["logfile"],
|
||||
stderr=cfg["logfile"]))
|
||||
|
||||
banner()
|
||||
if cfg['execfile']:
|
||||
cfg['execfile'] = os.path.abspath(cfg['execfile'])
|
||||
if cfg["execfile"]:
|
||||
cfg["execfile"] = os.path.abspath(cfg["execfile"])
|
||||
sys.exit(exec_file(cfg))
|
||||
try:
|
||||
cored(cfg)
|
||||
|
|
@ -317,4 +308,23 @@ def main():
|
|||
|
||||
|
||||
if __name__ == "__main__":
|
||||
log.setup(level=logging.INFO)
|
||||
|
||||
# configure nodes to use
|
||||
node_map = nodemaps.CLASSIC_NODES
|
||||
if len(sys.argv) == 2 and sys.argv[1] == "ovs":
|
||||
node_map = nodemaps.OVS_NODES
|
||||
nodeutils.set_node_map(node_map)
|
||||
|
||||
# load default services
|
||||
quagga.load_services()
|
||||
nrl.load_services()
|
||||
xorp.load_services()
|
||||
bird.load_services()
|
||||
utility.load_services()
|
||||
security.load_services()
|
||||
ucarp.load_services()
|
||||
dockersvc.load_services()
|
||||
startup.load_services()
|
||||
|
||||
main()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue