本文整理汇总了Python中ryu.lib.packet.arp.ARP_REPLY属性的典型用法代码示例。如果您正苦于以下问题：Python arp.ARP_REPLY属性的具体用法？Python arp.ARP_REPLY怎么用？Python arp.ARP_REPLY使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类ryu.lib.packet.arp的用法示例。
在下文中一共展示了arp.ARP_REPLY属性的14个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: arp_parse
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def arp_parse(data):
"""
Parse ARP packet, return ARP class from packet library.
"""
# Iteratize pkt
pkt = packet.Packet(data)
i = iter(pkt)
eth_pkt = next(i)
# Ensure it's an ethernet frame.
assert type(eth_pkt) == ethernet.ethernet
arp_pkt = next(i)
if type(arp_pkt) != arp.arp:
raise ARPPacket.ARPUnknownFormat()
if arp_pkt.opcode not in (ARP_REQUEST, ARP_REPLY):
raise ARPPacket.ARPUnknownFormat(
msg='unsupported opcode %d' % arp_pkt.opcode)
if arp_pkt.proto != ETH_TYPE_IP:
raise ARPPacket.ARPUnknownFormat(
msg='unsupported arp ethtype 0x%04x' % arp_pkt.proto)
return arp_pkt 示例2: _build_arp
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def _build_arp(self, opcode, dst_ip=HOST_IP):
if opcode == arp.ARP_REQUEST:
_eth_dst_mac = self.BROADCAST_MAC
_arp_dst_mac = self.ZERO_MAC
elif opcode == arp.ARP_REPLY:
_eth_dst_mac = self.HOST_MAC
_arp_dst_mac = self.HOST_MAC
e = self._build_ether(ether.ETH_TYPE_ARP, _eth_dst_mac)
a = arp.arp(hwtype=1, proto=ether.ETH_TYPE_IP, hlen=6, plen=4,
opcode=opcode, src_mac=self.RYU_MAC, src_ip=self.RYU_IP,
dst_mac=_arp_dst_mac, dst_ip=dst_ip)
p = packet.Packet()
p.add_protocol(e)
p.add_protocol(a)
p.serialize()
return p 示例3: receive_arp
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def receive_arp(self, datapath, pkt, etherFrame, inPort):
arpPacket = pkt.get_protocol(arp.arp)
if arpPacket.opcode == arp.ARP_REQUEST:
arp_dstIp = arpPacket.dst_ip
# From the dest IP figure out the mac address
targetMac = etherFrame.src
targetIp = arpPacket.src_ip
srcMac = ipToMac(arp_dstIp) # Get the MAC address of the ip looked up
e = ethernet.ethernet(targetMac, srcMac, ether_types.ETH_TYPE_ARP)
a = arp.arp(opcode=arp.ARP_REPLY, src_mac=srcMac, src_ip=arp_dstIp, dst_mac=targetMac, dst_ip=targetIp)
p = packet.Packet()
p.add_protocol(e)
p.add_protocol(a)
p.serialize()
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
datapath.send_msg(parser.OFPPacketOut(datapath=datapath, buffer_id=ofproto.OFP_NO_BUFFER, in_port=ofproto.OFPP_CONTROLLER, actions=[ parser.OFPActionOutput(inPort) ], data=p.data))
elif arpPacket.opcode == ARP_REPLY:
pass 示例4: _handle_arp
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def _handle_arp(self, datapath, in_port, eth_pkt, arp_pkt):
if arp_pkt.opcode != arp.ARP_REQUEST:
return
#Browse Target hardware adress from ip_to_mac table.
target_hw_addr = self.ip_to_mac[arp_pkt.dst_ip]
target_ip_addr = arp_pkt.dst_ip
pkt = packet.Packet()
#Create ethernet packet
pkt.add_protocol(ethernet.ethernet(ethertype=eth_pkt.ethertype,
dst=eth_pkt.src,
src=target_hw_addr))
#Create ARP Reply packet
pkt.add_protocol(arp.arp(opcode=arp.ARP_REPLY,
src_mac=target_hw_addr,
src_ip=target_ip_addr,
dst_mac=arp_pkt.src_mac,
dst_ip=arp_pkt.src_ip))
self._send_packet(datapath, in_port, pkt) 示例5: arp_parse
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def arp_parse(data):
"""
Parse ARP packet, return ARP class from packet library.
"""
# Iteratize pkt
pkt = packet.Packet(data)
i = iter(pkt)
eth_pkt = next(i)
# Ensure it's an ethernet frame.
assert isinstance(eth_pkt, ethernet.ethernet)
arp_pkt = next(i)
if not isinstance(arp_pkt, arp.arp):
raise ARPPacket.ARPUnknownFormat()
if arp_pkt.opcode not in (ARP_REQUEST, ARP_REPLY):
raise ARPPacket.ARPUnknownFormat(
msg='unsupported opcode %d' % arp_pkt.opcode)
if arp_pkt.proto != ETH_TYPE_IP:
raise ARPPacket.ARPUnknownFormat(
msg='unsupported arp ethtype 0x%04x' % arp_pkt.proto)
return arp_pkt 示例6: _arp_reply
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def _arp_reply(self):
p = self._build_arp(arp.ARP_REPLY, self.HOST_IP)
return p.data 示例7: _handle_arp
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def _handle_arp(self,datapath,in_port,pkt_eth,pkt_arp):
if pkt_arp.opcode != arp.ARP_REQUEST:
return
pkt = packet.Packet()
pkt.add_protocol(ethernet.ethernet(ethertype=pkt_eth.ethertype,
dst=pkt_eth.src,src=self.hw_addr))
pkt.add_protocol(arp.arp(opcode=arp.ARP_REPLY,
src_mac=self.hw_addr,
src_ip=self.ip_addr,
dst_mac=pkt_arp.src_mac,
dst_ip=pkt_arp.src_ip))
self._send_packet(datapath,in_port,pkt) 示例8: _handle_arp
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def _handle_arp(self,datapath,in_port,pkt_eth,pkt_arp):
if pkt_arp.opcode != arp.ARP_REQUEST:
return
pkt = packet.Packet()
pkt.add_protocol(ethernet.ethernet(ethertype=pkt_eth.ethertype,
dst=pkt_eth.src,src=self.hw_addr))
pkt.add_protocol(arp.arp(opcode=arp.ARP_REPLY,
src_mac=self.hw_addr,
src_ip=self.ip_addr,
dst_mac=pkt_arp.src_mac,
dst_ip=pkt_arp.src_ip))
self._send_packet(datapath,in_port,pkt) 示例9: _add_arp_reply_flow
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def _add_arp_reply_flow(self, datapath, tag, arp_tpa, arp_tha):
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
match = parser.OFPMatch(
metadata=(tag, parser.UINT64_MAX),
eth_type=ether_types.ETH_TYPE_ARP,
arp_op=arp.ARP_REQUEST,
arp_tpa=arp_tpa)
actions = [
parser.NXActionRegMove(
src_field="eth_src", dst_field="eth_dst", n_bits=48),
parser.OFPActionSetField(eth_src=arp_tha),
parser.OFPActionSetField(arp_op=arp.ARP_REPLY),
parser.NXActionRegMove(
src_field="arp_sha", dst_field="arp_tha", n_bits=48),
parser.NXActionRegMove(
src_field="arp_spa", dst_field="arp_tpa", n_bits=32),
parser.OFPActionSetField(arp_sha=arp_tha),
parser.OFPActionSetField(arp_spa=arp_tpa),
parser.OFPActionOutput(ofproto.OFPP_IN_PORT)]
instructions = [
parser.OFPInstructionActions(
ofproto.OFPIT_APPLY_ACTIONS, actions)]
self._add_flow(datapath, PRIORITY_ARP_REPLAY, match, instructions,
table_id=TABLE_ID_EGRESS) 示例10: control_plane_arp_handler
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def control_plane_arp_handler(self, in_port, vlan, eth_src, arp_pkt):
ofmsgs = []
if arp_pkt.opcode == arp.ARP_REQUEST:
pkt = self.build_ethernet_pkt(
eth_src, in_port, vlan, ether.ETH_TYPE_ARP)
arp_pkt = arp.arp(
opcode=arp.ARP_REPLY, src_mac=self.FAUCET_MAC,
src_ip=arp_pkt.dst_ip, dst_mac=eth_src, dst_ip=arp_pkt.src_ip)
pkt.add_protocol(arp_pkt)
pkt.serialize()
ofmsgs.append(self.valve_packetout(in_port, pkt.data))
self.logger.info('Responded to ARP request for %s from %s',
arp_pkt.src_ip, arp_pkt.dst_ip)
elif arp_pkt.opcode == arp.ARP_REPLY:
resolved_ip_gw = ipaddr.IPv4Address(arp_pkt.src_ip)
for ip_dst, ip_gw in vlan.ipv4_routes.iteritems():
if ip_gw == resolved_ip_gw:
self.logger.info('ARP response %s for %s',
eth_src, resolved_ip_gw)
ofmsgs.extend(
self.add_resolved_route(
ether.ETH_TYPE_IP, vlan, vlan.arp_cache,
ip_gw, ip_dst, eth_src))
return ofmsgs 示例11: handle_control_plane
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def handle_control_plane(self, in_port, vlan, eth_src, eth_dst, pkt):
flowmods = []
if eth_dst == self.FAUCET_MAC or not mac_addr_is_unicast(eth_dst):
arp_pkt = pkt.get_protocol(arp.arp)
ipv4_pkt = pkt.get_protocol(ipv4.ipv4)
ipv6_pkt = pkt.get_protocol(ipv6.ipv6)
if arp_pkt is not None:
src_ip = ipaddr.IPv4Address(arp_pkt.src_ip)
dst_ip = ipaddr.IPv4Address(arp_pkt.dst_ip)
if (arp_pkt.opcode == arp.ARP_REQUEST and
self.to_faucet_ip(vlan, src_ip, dst_ip)):
flowmods.extend(self.control_plane_arp_handler(
in_port, vlan, eth_src, arp_pkt))
elif (arp_pkt.opcode == arp.ARP_REPLY and
eth_dst == self.FAUCET_MAC):
flowmods.extend(self.control_plane_arp_handler(
in_port, vlan, eth_src, arp_pkt))
elif ipv4_pkt is not None:
icmp_pkt = pkt.get_protocol(icmp.icmp)
if icmp_pkt is not None:
src_ip = ipaddr.IPv4Address(ipv4_pkt.src)
dst_ip = ipaddr.IPv4Address(ipv4_pkt.dst)
if self.to_faucet_ip(vlan, src_ip, dst_ip):
flowmods.extend(self.control_plane_icmp_handler(
in_port, vlan, eth_src, ipv4_pkt, icmp_pkt))
elif ipv6_pkt is not None:
icmpv6_pkt = pkt.get_protocol(icmpv6.icmpv6)
if icmpv6_pkt is not None:
src_ip = ipaddr.IPv6Address(ipv6_pkt.src)
dst_ip = ipaddr.IPv6Address(ipv6_pkt.dst)
if self.to_faucet_ip(vlan, src_ip, dst_ip):
flowmods.extend(self.control_plane_icmpv6_handler(
in_port, vlan, eth_src, ipv6_pkt, icmpv6_pkt))
return flowmods 示例12: arp_packet_in_handler
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def arp_packet_in_handler(self, ev):
msg = ev.msg
datapath = msg.datapath
in_port = msg.match['in_port']
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
pkt = packet.Packet(msg.data)
arp_header = pkt.get_protocol(arp.arp)
src_ip = arp_header.src_ip
src_mac = arp_header.src_mac
dst_ip = arp_header.dst_ip
dst_mac = None
if self.cfg_mgr.is_internal_host(src_ip):
# if internal host sent arp request, reply router mac address
first_speaker_id = None
if self.cfg_mgr.get_all_speaker_id():
first_speaker_id = self.cfg_mgr.get_all_speaker_id()[0]
if first_speaker_id:
dst_mac = self.cfg_mgr.get_speaker_mac(first_speaker_id)
else:
dst_mac = self.arp_table.get(dst_ip)
self.arp_table.setdefault(src_ip, src_mac)
if arp_header.opcode != arp.ARP_REQUEST:
return
if not dst_mac:
# can't find distination, drop it
return
# send arp request to host
actions = [parser.OFPActionOutput(in_port)]
arp_reply = packet.Packet()
arp_reply.add_protocol(
ethernet.ethernet(
ethertype=ether_types.ETH_TYPE_ARP,
src=dst_mac,
dst=src_mac
)
)
arp_reply.add_protocol(
arp.arp(
opcode=arp.ARP_REPLY,
src_ip=dst_ip,
src_mac=dst_mac,
dst_ip=src_ip,
dst_mac=src_mac
)
)
arp_reply.serialize()
out = parser.OFPPacketOut(
datapath=datapath,
buffer_id=ofproto.OFP_NO_BUFFER,
in_port=ofproto.OFPP_CONTROLLER,
actions=actions, data=arp_reply.data)
datapath.send_msg(out) 示例13: _packet_in_handler
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def _packet_in_handler(self, ev):
msg = ev.msg
datapath = msg.datapath
ofproto = datapath.ofproto
parser = datapath.ofproto_parser
in_port = msg.match['in_port']
pkt = packet.Packet(msg.data)
# If there's someone asked for an IP address associated
# with a BFD session, generate an ARP reply for it.
if arp.arp in pkt:
arp_pkt = ARPPacket.arp_parse(msg.data)
if arp_pkt.opcode == ARP_REQUEST:
for s in self.session.values():
if s.dpid == datapath.id and \
s.ofport == in_port and \
s.src_ip == arp_pkt.dst_ip:
ans = ARPPacket.arp_packet(
ARP_REPLY,
s.src_mac, s.src_ip,
arp_pkt.src_mac, arp_pkt.src_ip)
actions = [parser.OFPActionOutput(in_port)]
out = parser.OFPPacketOut(
datapath=datapath,
buffer_id=ofproto.OFP_NO_BUFFER,
in_port=ofproto.OFPP_CONTROLLER,
actions=actions, data=ans)
datapath.send_msg(out)
return
return
# Check whether it's BFD packet or not.
if ipv4.ipv4 not in pkt or udp.udp not in pkt:
return
udp_hdr = pkt.get_protocols(udp.udp)[0]
if udp_hdr.dst_port != BFD_CONTROL_UDP_PORT:
return
# Parse BFD packet here.
self.recv_bfd_pkt(datapath, in_port, msg.data) 示例14: packet_in_handler
# 需要导入模块: from ryu.lib.packet import arp [as 别名]
# 或者: from ryu.lib.packet.arp import ARP_REPLY [as 别名]
def packet_in_handler(self, ev):
msg = ev.msg
dp = msg.datapath
pkt = packet.Packet(array.array('B', msg.data))
p_arp = self._find_protocol(pkt, "arp")
p_icmp = self._find_protocol(pkt, "icmp")
p_ipv4 = self._find_protocol(pkt, "ipv4")
if p_arp:
src_ip = str(netaddr.IPAddress(p_arp.src_ip))
dst_ip = str(netaddr.IPAddress(p_arp.dst_ip))
if p_arp.opcode == arp.ARP_REQUEST:
LOG.debug("--- PacketIn: ARP_Request: %s->%s", src_ip, dst_ip)
if p_arp.dst_ip == self.RYU_IP:
LOG.debug("--- send Pkt: ARP_Reply")
data = self._arp_reply()
self._send_msg(dp, data)
elif p_arp.dst_ip == self.HOST_IP:
LOG.debug(" PacketIn: GARP")
LOG.debug("--- send Pkt: ARP_Request")
data = self._arp_request()
self._send_msg(dp, data)
elif p_arp.opcode == arp.ARP_REPLY:
LOG.debug("--- PacketIn: ARP_Reply: %s->%s", src_ip, dst_ip)
LOG.debug("--- send Pkt: Echo_Request")
echo = icmp.echo(id_=66, seq=1)
data = self._echo_request(echo)
self._send_msg(dp, data)
if p_icmp:
src = str(netaddr.IPAddress(p_ipv4.src))
dst = str(netaddr.IPAddress(p_ipv4.dst))
if p_icmp.type == icmp.ICMP_ECHO_REQUEST:
LOG.debug("--- PacketIn: Echo_Request: %s->%s", src, dst)
if p_ipv4.dst == self.RYU_IP:
LOG.debug("--- send Pkt: Echo_Reply")
echo = p_icmp.data
echo.data = bytearray(echo.data)
data = self._echo_reply(echo)
self._send_msg(dp, data)
elif p_icmp.type == icmp.ICMP_ECHO_REPLY:
LOG.debug("--- PacketIn: Echo_Reply: %s->%s", src, dst)