51e94e52f0
TcpNewReno is introduced in RFC 2582. The most recent RFC on this is the RFC 6582. Since its introduction, Tcp NewReno is the RECOMMENDED algorithm by the Internet Engineering Task Force. The main difference between Reno and New Reno is in the Fast retransmit algorithm, in order to recover more quickly when multiple packet losses occur in a single window. NewReno introduces the concept of Partial acknowledgments. Since the intention is to merge fast retransmit and fast recovery into TcpSocketBase, there isn't the possibility to maintain TcpReno as separate class. However, its behavior could be introduced again with one conditional attribute in TcpSocketBase itself.
356 lines
14 KiB
Python
356 lines
14 KiB
Python
## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
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import os
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import sys
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from waflib import Options, Logs, Utils, Task
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# Required NSC version
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NSC_RELEASE_NAME = "nsc-0.5.3"
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def options(opt):
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opt.add_option('--with-nsc',
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help=('Use Network Simulation Cradle, given by the indicated path,'
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' to allow the use of real-world network stacks'),
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default='', dest='with_nsc')
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opt.add_option('--disable-nsc',
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help=('Disable Network Simulation Cradle support'),
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dest='disable_nsc', default=False, action="store_true")
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def configure(conf):
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conf.env['ENABLE_NSC'] = False
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if Options.options.disable_nsc:
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conf.report_optional_feature("nsc", "Network Simulation Cradle", False,
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"disabled by user request")
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return
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# checks for flex and bison, which is needed to build NSCs globaliser
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# TODO: how to move these checks into the allinone scripts?
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#def check_nsc_buildutils():
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# import flex
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# import bison
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# conf.check_tool('flex bison')
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# conf.check(lib='fl', mandatory=True)
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# Check for the location of NSC
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lib_to_check = 'liblinux2.6.26.so'
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if Options.options.with_nsc:
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if os.path.isdir(Options.options.with_nsc):
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conf.msg("Checking for NSC location", ("%s (given)" % Options.options.with_nsc))
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conf.env['WITH_NSC'] = os.path.abspath(Options.options.with_nsc)
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else:
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# bake.py uses ../../build, while ns-3-dev uses ../nsc,
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# and ns-3 release uses ../NSC_RELEASE_NAME
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nsc_bake_build_dir = os.path.join('..', '..', 'build')
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nsc_bake_lib_dir = os.path.join(nsc_bake_build_dir, 'lib')
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nsc_dir = os.path.join('..', "nsc")
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nsc_release_dir = os.path.join('..', NSC_RELEASE_NAME)
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if os.path.exists(os.path.join(nsc_bake_lib_dir, lib_to_check)):
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conf.msg("Checking for NSC location",("%s (guessed)" % nsc_bake_build_dir))
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conf.env['WITH_NSC'] = os.path.abspath(nsc_bake_build_dir)
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elif os.path.isdir(nsc_dir):
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conf.msg("Checking for NSC location",("%s (guessed)" % nsc_dir))
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conf.env['WITH_NSC'] = os.path.abspath(nsc_dir)
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elif os.path.isdir(nsc_release_dir):
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conf.msg("Checking for NSC location", ("%s (guessed)" % nsc_release_dir))
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conf.env['WITH_NSC'] = os.path.abspath(nsc_release_dir)
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del nsc_bake_build_dir
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del nsc_bake_lib_dir
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del nsc_dir
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del nsc_release_dir
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if not conf.env['WITH_NSC']:
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conf.msg("Checking for NSC location", False)
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conf.report_optional_feature("nsc", "Network Simulation Cradle", False,
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"NSC not found (see option --with-nsc)")
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return
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if Options.platform in ['linux', 'freebsd']:
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arch = os.uname()[4]
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else:
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arch = None
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ok = False
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if arch in ('amd64', 'x86_64', 'i686', 'i586', 'i486', 'i386'):
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conf.env['NSC_ENABLED'] = True
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conf.env.append_value('CXXDEFINES', 'NETWORK_SIMULATION_CRADLE')
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conf.check_nonfatal(mandatory=True, lib='dl', define_name='HAVE_DL', uselib_store='DL')
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ok = True
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conf.msg('Checking for NSC supported architecture ' + (arch or ''), ok)
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if not ok:
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conf.env['NSC_ENABLED'] = False
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conf.report_optional_feature("nsc", "Network Simulation Cradle", False,
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"architecture %r not supported" % arch)
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return
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found = False
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for path in ['.', 'lib', 'lib64', 'linux-2.6.26']:
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if os.path.exists(os.path.join(conf.env['WITH_NSC'], path, lib_to_check)):
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# append the NSC kernel dir to the module path so that this dir
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# will end up in the LD_LIBRARY_PATH, thus allowing the NSC NS-3
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# module to find the necessary NSC shared libraries.
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found = True
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conf.env.append_value('NS3_MODULE_PATH',
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os.path.abspath(os.path.join(conf.env['WITH_NSC'], path)))
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if not found:
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conf.env['NSC_ENABLED'] = False
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conf.report_optional_feature("nsc", "Network Simulation Cradle", False,
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"NSC library %s is missing: NSC has not been built?" % lib_to_check)
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else:
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conf.report_optional_feature("nsc", "Network Simulation Cradle", True, "")
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def build(bld):
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# bridge and mpi dependencies are due to global routing
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obj = bld.create_ns3_module('internet', ['bridge', 'mpi', 'network', 'core'])
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obj.source = [
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'model/ip-l4-protocol.cc',
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'model/udp-header.cc',
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'model/tcp-header.cc',
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'model/ipv4-interface.cc',
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'model/ipv4-l3-protocol.cc',
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'model/ipv4-end-point.cc',
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'model/udp-l4-protocol.cc',
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'model/tcp-l4-protocol.cc',
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'model/arp-header.cc',
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'model/arp-cache.cc',
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'model/arp-l3-protocol.cc',
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'model/udp-socket-impl.cc',
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'model/ipv4-end-point-demux.cc',
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'model/udp-socket-factory-impl.cc',
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'model/tcp-socket-factory-impl.cc',
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'model/pending-data.cc',
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'model/rtt-estimator.cc',
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'model/ipv4-raw-socket-factory-impl.cc',
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'model/ipv4-raw-socket-impl.cc',
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'model/icmpv4.cc',
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'model/icmpv4-l4-protocol.cc',
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'model/loopback-net-device.cc',
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'model/ndisc-cache.cc',
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'model/ipv6-interface.cc',
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'model/icmpv6-header.cc',
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'model/ipv6-l3-protocol.cc',
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'model/ipv6-end-point.cc',
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'model/ipv6-end-point-demux.cc',
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'model/ipv6-raw-socket-factory-impl.cc',
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'model/ipv6-raw-socket-impl.cc',
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'model/ipv6-autoconfigured-prefix.cc',
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'model/ipv6-extension.cc',
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'model/ipv6-extension-header.cc',
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'model/ipv6-extension-demux.cc',
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'model/ipv6-option.cc',
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'model/ipv6-option-header.cc',
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'model/ipv6-option-demux.cc',
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'model/icmpv6-l4-protocol.cc',
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'model/tcp-socket-base.cc',
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'model/tcp-rfc793.cc',
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'model/tcp-tahoe.cc',
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'model/tcp-newreno.cc',
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'model/tcp-westwood.cc',
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'model/tcp-rx-buffer.cc',
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'model/tcp-tx-buffer.cc',
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'model/tcp-option.cc',
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'model/tcp-option-rfc793.cc',
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'model/tcp-option-winscale.cc',
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'model/tcp-option-ts.cc',
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'model/ipv4-packet-info-tag.cc',
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'model/ipv6-packet-info-tag.cc',
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'model/ipv4-interface-address.cc',
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'model/ipv4-address-generator.cc',
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'model/ipv4-header.cc',
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'model/ipv4-route.cc',
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'model/ipv4-routing-protocol.cc',
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'model/udp-socket.cc',
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'model/udp-socket-factory.cc',
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'model/tcp-socket.cc',
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'model/tcp-socket-factory.cc',
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'model/ipv4.cc',
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'model/ipv4-raw-socket-factory.cc',
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'model/ipv6-header.cc',
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'model/ipv6-interface-address.cc',
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'model/ipv6-route.cc',
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'model/ipv6.cc',
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'model/ipv6-raw-socket-factory.cc',
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'model/ipv6-routing-protocol.cc',
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'model/ipv4-list-routing.cc',
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'model/ipv6-list-routing.cc',
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'helper/ipv4-list-routing-helper.cc',
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'helper/ipv6-list-routing-helper.cc',
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'model/ipv4-static-routing.cc',
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'model/ipv4-routing-table-entry.cc',
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'model/ipv6-static-routing.cc',
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'model/ipv6-routing-table-entry.cc',
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'helper/ipv4-static-routing-helper.cc',
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'helper/ipv6-static-routing-helper.cc',
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'model/global-router-interface.cc',
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'model/global-route-manager.cc',
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'model/global-route-manager-impl.cc',
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'model/candidate-queue.cc',
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'model/codel-queue.cc',
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'model/ipv4-global-routing.cc',
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'helper/ipv4-global-routing-helper.cc',
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'helper/internet-stack-helper.cc',
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'helper/internet-trace-helper.cc',
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'helper/ipv4-address-helper.cc',
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'helper/ipv4-interface-container.cc',
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'helper/ipv4-routing-helper.cc',
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'helper/ipv6-address-helper.cc',
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'helper/ipv6-interface-container.cc',
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'helper/ipv6-routing-helper.cc',
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'model/ipv6-address-generator.cc',
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'model/ipv4-packet-probe.cc',
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'model/ipv6-packet-probe.cc',
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'model/ipv6-pmtu-cache.cc',
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'model/ripng.cc',
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'model/ripng-header.cc',
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'helper/ripng-helper.cc',
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]
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internet_test = bld.create_ns3_module_test_library('internet')
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internet_test.source = [
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'test/global-route-manager-impl-test-suite.cc',
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'test/ipv4-address-generator-test-suite.cc',
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'test/ipv4-address-helper-test-suite.cc',
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'test/ipv4-list-routing-test-suite.cc',
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'test/ipv4-packet-info-tag-test-suite.cc',
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'test/ipv4-raw-test.cc',
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'test/ipv4-header-test.cc',
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'test/ipv4-fragmentation-test.cc',
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'test/ipv4-forwarding-test.cc',
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'test/error-channel.cc',
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'test/ipv4-test.cc',
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'test/ipv4-static-routing-test-suite.cc',
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'test/ipv4-global-routing-test-suite.cc',
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'test/ipv6-extension-header-test-suite.cc',
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'test/ipv6-list-routing-test-suite.cc',
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'test/ipv6-packet-info-tag-test-suite.cc',
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'test/ipv6-test.cc',
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'test/ipv6-raw-test.cc',
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'test/tcp-test.cc',
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'test/tcp-timestamp-test.cc',
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'test/tcp-wscaling-test.cc',
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'test/tcp-option-test.cc',
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'test/tcp-header-test.cc',
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'test/udp-test.cc',
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'test/ipv6-address-generator-test-suite.cc',
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'test/ipv6-dual-stack-test-suite.cc',
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'test/ipv6-fragmentation-test.cc',
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'test/ipv6-forwarding-test.cc',
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'test/ipv6-ripng-test.cc',
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'test/ipv6-address-helper-test-suite.cc',
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'test/rtt-test.cc',
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'test/codel-queue-test-suite.cc',
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]
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privateheaders = bld(features='ns3privateheader')
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privateheaders.module = 'internet'
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privateheaders.source = [
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'model/tcp-option-winscale.h',
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'model/tcp-option-ts.h',
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'model/tcp-option-rfc793.h',
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]
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headers = bld(features='ns3header')
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headers.module = 'internet'
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headers.source = [
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'model/udp-header.h',
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'model/tcp-header.h',
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'model/tcp-option.h',
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'model/icmpv4.h',
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'model/icmpv6-header.h',
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# used by routing
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'model/ipv4-interface.h',
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'model/ipv4-l3-protocol.h',
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'model/ipv6-l3-protocol.h',
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'model/ipv6-extension.h',
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'model/ipv6-extension-demux.h',
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'model/ipv6-extension-header.h',
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'model/ipv6-option-header.h',
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'model/arp-l3-protocol.h',
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'model/udp-l4-protocol.h',
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'model/tcp-l4-protocol.h',
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'model/icmpv4-l4-protocol.h',
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'model/ip-l4-protocol.h',
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'model/arp-header.h',
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'model/arp-cache.h',
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'model/icmpv6-l4-protocol.h',
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'model/ipv6-interface.h',
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'model/ndisc-cache.h',
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'model/loopback-net-device.h',
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'model/ipv4-packet-info-tag.h',
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'model/ipv6-packet-info-tag.h',
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'model/ipv4-interface-address.h',
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'model/ipv4-address-generator.h',
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'model/ipv4-header.h',
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'model/ipv4-route.h',
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'model/ipv4-routing-protocol.h',
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'model/udp-socket.h',
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'model/udp-socket-factory.h',
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'model/tcp-socket.h',
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'model/tcp-socket-factory.h',
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'model/ipv4.h',
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'model/ipv4-raw-socket-factory.h',
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'model/ipv4-raw-socket-impl.h',
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'model/ipv6-header.h',
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'model/ipv6-interface-address.h',
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'model/ipv6-route.h',
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'model/ipv6.h',
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'model/ipv6-raw-socket-factory.h',
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'model/ipv6-routing-protocol.h',
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'model/ipv4-list-routing.h',
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'model/ipv6-list-routing.h',
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'helper/ipv4-list-routing-helper.h',
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'helper/ipv6-list-routing-helper.h',
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'model/ipv4-static-routing.h',
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'model/ipv4-routing-table-entry.h',
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'model/ipv6-static-routing.h',
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'model/ipv6-routing-table-entry.h',
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'helper/ipv4-static-routing-helper.h',
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'helper/ipv6-static-routing-helper.h',
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'model/global-router-interface.h',
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'model/global-route-manager.h',
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'model/global-route-manager-impl.h',
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'model/candidate-queue.h',
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'model/codel-queue.h',
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'model/ipv4-global-routing.h',
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'helper/ipv4-global-routing-helper.h',
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'helper/internet-stack-helper.h',
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'helper/internet-trace-helper.h',
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'helper/ipv4-address-helper.h',
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'helper/ipv4-interface-container.h',
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'helper/ipv4-routing-helper.h',
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'helper/ipv6-address-helper.h',
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'helper/ipv6-interface-container.h',
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'helper/ipv6-routing-helper.h',
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'model/ipv6-address-generator.h',
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'model/tcp-rfc793.h',
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'model/tcp-tahoe.h',
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'model/tcp-newreno.h',
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'model/tcp-westwood.h',
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'model/tcp-socket-base.h',
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'model/tcp-tx-buffer.h',
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'model/tcp-rx-buffer.h',
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'model/rtt-estimator.h',
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'model/ipv4-packet-probe.h',
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'model/ipv6-packet-probe.h',
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'model/ipv6-pmtu-cache.h',
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'model/ripng.h',
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'model/ripng-header.h',
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'helper/ripng-helper.h',
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]
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if bld.env['NSC_ENABLED']:
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obj.source.append ('model/nsc-tcp-socket-impl.cc')
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obj.source.append ('model/nsc-tcp-l4-protocol.cc')
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obj.source.append ('model/nsc-tcp-socket-factory-impl.cc')
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obj.source.append ('model/nsc-sysctl.cc')
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headers.source.append('model/nsc-tcp-l4-protocol.h')
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obj.use.append('DL')
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internet_test.use.append('DL')
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if (bld.env['ENABLE_EXAMPLES']):
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bld.recurse('examples')
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bld.ns3_python_bindings()
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