e6a5712624
One type for address with prefix and one type for prefix. Ticket: VPP-1769 Type: fix Signed-off-by: Ole Troan <ot@cisco.com> Change-Id: Icfec51d9b7d5cde1d69fbecdd97498688ab7b295 Signed-off-by: Klement Sekera <ksekera@cisco.com>
754 lines
24 KiB
Python
754 lines
24 KiB
Python
"""
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IP Routes
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object abstractions for representing IP routes in VPP
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"""
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from vpp_object import VppObject
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from socket import inet_pton, inet_ntop, AF_INET, AF_INET6
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from vpp_ip import DpoProto, VppIpPrefix, INVALID_INDEX, VppIpAddressUnion, \
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VppIpMPrefix
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from ipaddress import ip_address, IPv4Network, IPv6Network
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# from vnet/vnet/mpls/mpls_types.h
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MPLS_IETF_MAX_LABEL = 0xfffff
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MPLS_LABEL_INVALID = MPLS_IETF_MAX_LABEL + 1
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try:
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text_type = unicode
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except NameError:
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text_type = str
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class MRouteItfFlags:
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MFIB_ITF_FLAG_NONE = 0
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MFIB_ITF_FLAG_NEGATE_SIGNAL = 1
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MFIB_ITF_FLAG_ACCEPT = 2
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MFIB_ITF_FLAG_FORWARD = 4
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MFIB_ITF_FLAG_SIGNAL_PRESENT = 8
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MFIB_ITF_FLAG_INTERNAL_COPY = 16
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class MRouteEntryFlags:
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MFIB_ENTRY_FLAG_NONE = 0
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MFIB_ENTRY_FLAG_SIGNAL = 1
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MFIB_ENTRY_FLAG_DROP = 2
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MFIB_ENTRY_FLAG_CONNECTED = 4
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MFIB_ENTRY_FLAG_INHERIT_ACCEPT = 8
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class FibPathProto:
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FIB_PATH_NH_PROTO_IP4 = 0
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FIB_PATH_NH_PROTO_IP6 = 1
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FIB_PATH_NH_PROTO_MPLS = 2
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FIB_PATH_NH_PROTO_ETHERNET = 3
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FIB_PATH_NH_PROTO_BIER = 4
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FIB_PATH_NH_PROTO_NSH = 5
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class FibPathType:
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FIB_PATH_TYPE_NORMAL = 0
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FIB_PATH_TYPE_LOCAL = 1
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FIB_PATH_TYPE_DROP = 2
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FIB_PATH_TYPE_UDP_ENCAP = 3
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FIB_PATH_TYPE_BIER_IMP = 4
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FIB_PATH_TYPE_ICMP_UNREACH = 5
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FIB_PATH_TYPE_ICMP_PROHIBIT = 6
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FIB_PATH_TYPE_SOURCE_LOOKUP = 7
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FIB_PATH_TYPE_DVR = 8
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FIB_PATH_TYPE_INTERFACE_RX = 9
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FIB_PATH_TYPE_CLASSIFY = 10
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class FibPathFlags:
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FIB_PATH_FLAG_NONE = 0
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FIB_PATH_FLAG_RESOLVE_VIA_ATTACHED = 1
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FIB_PATH_FLAG_RESOLVE_VIA_HOST = 2
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FIB_PATH_FLAG_POP_PW_CW = 4
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class MplsLspMode:
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PIPE = 0
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UNIFORM = 1
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def ip_to_dpo_proto(addr):
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if addr.version == 6:
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return DpoProto.DPO_PROTO_IP6
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else:
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return DpoProto.DPO_PROTO_IP4
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def address_proto(ip_addr):
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if ip_addr.ip_addr.version is 4:
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return FibPathProto.FIB_PATH_NH_PROTO_IP4
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else:
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return FibPathProto.FIB_PATH_NH_PROTO_IP6
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def find_route(test, addr, len, table_id=0):
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ip_addr = ip_address(text_type(addr))
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if 4 is ip_addr.version:
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routes = test.vapi.ip_route_dump(table_id, False)
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prefix = IPv4Network("%s/%d" % (text_type(addr), len), strict=False)
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else:
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routes = test.vapi.ip_route_dump(table_id, True)
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prefix = IPv6Network("%s/%d" % (text_type(addr), len), strict=False)
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for e in routes:
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if table_id == e.route.table_id \
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and prefix == e.route.prefix:
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return True
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return False
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def find_mroute(test, grp_addr, src_addr, grp_addr_len,
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table_id=0):
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ip_mprefix = VppIpMPrefix(text_type(src_addr),
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text_type(grp_addr),
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grp_addr_len)
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if 4 is ip_mprefix.version:
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routes = test.vapi.ip_mroute_dump(table_id, False)
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else:
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routes = test.vapi.ip_mroute_dump(table_id, True)
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for e in routes:
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if table_id == e.route.table_id and ip_mprefix == e.route.prefix:
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return True
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return False
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def find_mpls_route(test, table_id, label, eos_bit, paths=None):
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dump = test.vapi.mpls_route_dump(table_id)
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for e in dump:
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if label == e.mr_route.mr_label \
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and eos_bit == e.mr_route.mr_eos \
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and table_id == e.mr_route.mr_table_id:
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if not paths:
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return True
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else:
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if (len(paths) != len(e.mr_route.mr_paths)):
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return False
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for i in range(len(paths)):
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if (paths[i] != e.mr_route.mr_paths[i]):
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return False
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return True
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return False
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def fib_interface_ip_prefix(test, address, length, sw_if_index):
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ip_addr = ip_address(text_type(address))
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if 4 is ip_addr.version:
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addrs = test.vapi.ip_address_dump(sw_if_index)
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prefix = IPv4Network("%s/%d" % (text_type(address), length),
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strict=False)
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else:
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addrs = test.vapi.ip_address_dump(sw_if_index, is_ipv6=1)
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prefix = IPv6Network("%s/%d" % (text_type(address), length),
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strict=False)
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# TODO: refactor this to VppIpPrefix.__eq__
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for a in addrs:
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if a.sw_if_index == sw_if_index and \
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a.prefix.network == prefix:
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return True
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return False
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class VppIpTable(VppObject):
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def __init__(self,
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test,
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table_id,
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is_ip6=0):
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self._test = test
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self.table_id = table_id
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self.is_ip6 = is_ip6
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def add_vpp_config(self):
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self._test.vapi.ip_table_add_del(is_ipv6=self.is_ip6, is_add=1,
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table_id=self.table_id)
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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self._test.vapi.ip_table_add_del(is_ipv6=self.is_ip6, is_add=0,
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table_id=self.table_id)
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def query_vpp_config(self):
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if self.table_id == 0:
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# the default table always exists
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return False
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# find the default route
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return find_route(self._test,
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"::" if self.is_ip6 else "0.0.0.0",
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0,
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self.table_id)
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def object_id(self):
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return ("table-%s-%d" %
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("v6" if self.is_ip6 == 1 else "v4",
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self.table_id))
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class VppIpInterfaceAddress(VppObject):
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def __init__(self, test, intf, addr, len):
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self._test = test
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self.intf = intf
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self.prefix = VppIpPrefix(addr, len)
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def add_vpp_config(self):
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self._test.vapi.sw_interface_add_del_address(
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sw_if_index=self.intf.sw_if_index, address=self.prefix.bytes,
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address_length=self.prefix.length, is_ipv6=self.prefix.is_ip6,
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is_add=1)
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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self._test.vapi.sw_interface_add_del_address(
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sw_if_index=self.intf.sw_if_index, address=self.prefix.bytes,
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address_length=self.prefix.length, is_ipv6=self.prefix.is_ip6,
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is_add=0)
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def query_vpp_config(self):
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return fib_interface_ip_prefix(self._test,
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self.prefix.address,
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self.prefix.length,
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self.intf.sw_if_index)
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def object_id(self):
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return "interface-ip-%s-%s" % (self.intf, self.prefix)
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class VppIpInterfaceBind(VppObject):
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def __init__(self, test, intf, table):
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self._test = test
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self.intf = intf
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self.table = table
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def add_vpp_config(self):
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if self.table.is_ip6:
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self.intf.set_table_ip6(self.table.table_id)
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else:
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self.intf.set_table_ip4(self.table.table_id)
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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if 0 == self.table.table_id:
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return
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if self.table.is_ip6:
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self.intf.set_table_ip6(0)
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else:
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self.intf.set_table_ip4(0)
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def query_vpp_config(self):
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if 0 == self.table.table_id:
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return False
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return self._test.vapi.sw_interface_get_table(
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self.intf.sw_if_index,
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self.table.is_ip6).vrf_id == self.table.table_id
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def object_id(self):
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return "interface-bind-%s-%s" % (self.intf, self.table)
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class VppMplsLabel(object):
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def __init__(self, value, mode=MplsLspMode.PIPE, ttl=64, exp=0):
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self.value = value
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self.mode = mode
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self.ttl = ttl
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self.exp = exp
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def encode(self):
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is_uniform = 0 if self.mode is MplsLspMode.PIPE else 1
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return {'label': self.value,
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'ttl': self.ttl,
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'exp': self.exp,
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'is_uniform': is_uniform}
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def __eq__(self, other):
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if isinstance(other, self.__class__):
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return (self.value == other.value and
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self.ttl == other.ttl and
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self.exp == other.exp and
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self.mode == other.mode)
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elif hasattr(other, 'label'):
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return (self.value == other.label and
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self.ttl == other.ttl and
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self.exp == other.exp and
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(self.mode == MplsLspMode.UNIFORM) == other.is_uniform)
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else:
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return False
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def __ne__(self, other):
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return not (self == other)
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class VppFibPathNextHop(object):
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def __init__(self, addr,
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via_label=MPLS_LABEL_INVALID,
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next_hop_id=INVALID_INDEX):
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self.addr = VppIpAddressUnion(addr)
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self.via_label = via_label
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self.obj_id = next_hop_id
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def encode(self):
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if self.via_label is not MPLS_LABEL_INVALID:
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return {'via_label': self.via_label}
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if self.obj_id is not INVALID_INDEX:
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return {'obj_id': self.obj_id}
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else:
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return {'address': self.addr.encode()}
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def proto(self):
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if self.via_label is MPLS_LABEL_INVALID:
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return address_proto(self.addr)
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else:
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return FibPathProto.FIB_PATH_NH_PROTO_MPLS
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def __eq__(self, other):
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if not isinstance(other, self.__class__):
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# try the other instance's __eq__.
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return NotImplemented
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return (self.addr == other.addr and
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self.via_label == other.via_label and
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self.obj_id == other.obj_id)
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class VppRoutePath(object):
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def __init__(
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self,
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nh_addr,
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nh_sw_if_index,
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nh_table_id=0,
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labels=[],
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nh_via_label=MPLS_LABEL_INVALID,
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rpf_id=0,
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next_hop_id=INVALID_INDEX,
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proto=None,
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flags=FibPathFlags.FIB_PATH_FLAG_NONE,
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type=FibPathType.FIB_PATH_TYPE_NORMAL):
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self.nh_itf = nh_sw_if_index
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self.nh_table_id = nh_table_id
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self.nh_labels = labels
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self.weight = 1
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self.rpf_id = rpf_id
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self.proto = proto
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self.flags = flags
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self.type = type
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self.nh = VppFibPathNextHop(nh_addr, nh_via_label, next_hop_id)
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if proto is None:
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self.proto = self.nh.proto()
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else:
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self.proto = proto
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self.next_hop_id = next_hop_id
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def encode_labels(self):
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lstack = []
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for l in self.nh_labels:
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if type(l) == VppMplsLabel:
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lstack.append(l.encode())
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else:
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lstack.append({'label': l,
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'ttl': 255})
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while (len(lstack) < 16):
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lstack.append({})
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return lstack
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def encode(self):
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return {'weight': 1,
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'preference': 0,
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'table_id': self.nh_table_id,
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'nh': self.nh.encode(),
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'next_hop_id': self.next_hop_id,
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'sw_if_index': self.nh_itf,
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'rpf_id': self.rpf_id,
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'proto': self.proto,
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'type': self.type,
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'flags': self.flags,
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'n_labels': len(self.nh_labels),
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'label_stack': self.encode_labels()}
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def __eq__(self, other):
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if isinstance(other, self.__class__):
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return self.nh == other.nh
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elif hasattr(other, 'sw_if_index'):
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# vl_api_fib_path_t
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if (len(self.nh_labels) != other.n_labels):
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return False
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for i in range(len(self.nh_labels)):
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if (self.nh_labels[i] != other.label_stack[i]):
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return False
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return self.nh_itf == other.sw_if_index
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else:
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return False
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def __ne__(self, other):
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return not (self == other)
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class VppMRoutePath(VppRoutePath):
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def __init__(self, nh_sw_if_index, flags,
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nh=None,
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proto=FibPathProto.FIB_PATH_NH_PROTO_IP4,
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type=FibPathType.FIB_PATH_TYPE_NORMAL,
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bier_imp=INVALID_INDEX):
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if not nh:
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nh = "::" if proto is FibPathProto.FIB_PATH_NH_PROTO_IP6 \
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else "0.0.0.0"
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super(VppMRoutePath, self).__init__(nh,
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nh_sw_if_index,
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proto=proto,
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type=type,
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next_hop_id=bier_imp)
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self.nh_i_flags = flags
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self.bier_imp = bier_imp
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def encode(self):
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return {'path': super(VppMRoutePath, self).encode(),
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'itf_flags': self.nh_i_flags}
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class VppIpRoute(VppObject):
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"""
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IP Route
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"""
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def __init__(self, test, dest_addr,
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dest_addr_len, paths, table_id=0, register=True):
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self._test = test
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self.paths = paths
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self.table_id = table_id
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self.prefix = VppIpPrefix(dest_addr, dest_addr_len)
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self.register = register
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self.stats_index = None
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self.modified = False
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self.encoded_paths = []
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for path in self.paths:
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self.encoded_paths.append(path.encode())
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def __eq__(self, other):
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if self.table_id == other.table_id and \
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self.prefix == other.prefix:
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return True
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return False
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def modify(self, paths):
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self.paths = paths
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self.encoded_paths = []
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for path in self.paths:
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self.encoded_paths.append(path.encode())
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self.modified = True
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self._test.vapi.ip_route_add_del(route={'table_id': self.table_id,
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'prefix': self.prefix.encode(),
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'n_paths': len(
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self.encoded_paths),
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'paths': self.encoded_paths,
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},
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is_add=1,
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is_multipath=0)
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def add_vpp_config(self):
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r = self._test.vapi.ip_route_add_del(
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route={'table_id': self.table_id,
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'prefix': self.prefix.encode(),
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'n_paths': len(self.encoded_paths),
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'paths': self.encoded_paths,
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},
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is_add=1,
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is_multipath=0)
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self.stats_index = r.stats_index
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if self.register:
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self._test.registry.register(self, self._test.logger)
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def remove_vpp_config(self):
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# there's no need to issue different deletes for modified routes
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# we do this only to test the two different ways to delete routes
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# eiter by passing all the paths to remove and mutlipath=1 or
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# passing no paths and multipath=0
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if self.modified:
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self._test.vapi.ip_route_add_del(
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route={'table_id': self.table_id,
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'prefix': self.prefix.encode(),
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'n_paths': len(
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self.encoded_paths),
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'paths': self.encoded_paths},
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is_add=0,
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is_multipath=1)
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else:
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self._test.vapi.ip_route_add_del(
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route={'table_id': self.table_id,
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'prefix': self.prefix.encode(),
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'n_paths': 0},
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is_add=0,
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is_multipath=0)
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def query_vpp_config(self):
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return find_route(self._test,
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self.prefix.address,
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self.prefix.len,
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self.table_id)
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def object_id(self):
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return ("%s:table-%d-%s/%d" % (
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'ip6-route' if self.prefix.addr.version == 6 else 'ip-route',
|
|
self.table_id,
|
|
self.prefix.address,
|
|
self.prefix.len))
|
|
|
|
def get_stats_to(self):
|
|
c = self._test.statistics.get_counter("/net/route/to")
|
|
return c[0][self.stats_index]
|
|
|
|
def get_stats_via(self):
|
|
c = self._test.statistics.get_counter("/net/route/via")
|
|
return c[0][self.stats_index]
|
|
|
|
|
|
class VppIpMRoute(VppObject):
|
|
"""
|
|
IP Multicast Route
|
|
"""
|
|
|
|
def __init__(self, test, src_addr, grp_addr,
|
|
grp_addr_len, e_flags, paths, table_id=0,
|
|
rpf_id=0):
|
|
self._test = test
|
|
self.paths = paths
|
|
self.table_id = table_id
|
|
self.e_flags = e_flags
|
|
self.rpf_id = rpf_id
|
|
|
|
self.prefix = VppIpMPrefix(src_addr, grp_addr, grp_addr_len)
|
|
self.encoded_paths = []
|
|
for path in self.paths:
|
|
self.encoded_paths.append(path.encode())
|
|
|
|
def add_vpp_config(self):
|
|
r = self._test.vapi.ip_mroute_add_del(self.table_id,
|
|
self.prefix.encode(),
|
|
self.e_flags,
|
|
self.rpf_id,
|
|
self.encoded_paths,
|
|
is_add=1)
|
|
self.stats_index = r.stats_index
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
self._test.vapi.ip_mroute_add_del(self.table_id,
|
|
self.prefix.encode(),
|
|
self.e_flags,
|
|
self.rpf_id,
|
|
self.encoded_paths,
|
|
is_add=0)
|
|
|
|
def update_entry_flags(self, flags):
|
|
self.e_flags = flags
|
|
self._test.vapi.ip_mroute_add_del(self.table_id,
|
|
self.prefix.encode(),
|
|
self.e_flags,
|
|
self.rpf_id,
|
|
[],
|
|
is_add=1)
|
|
|
|
def update_rpf_id(self, rpf_id):
|
|
self.rpf_id = rpf_id
|
|
self._test.vapi.ip_mroute_add_del(self.table_id,
|
|
self.prefix.encode(),
|
|
self.e_flags,
|
|
self.rpf_id,
|
|
[],
|
|
is_add=1)
|
|
|
|
def update_path_flags(self, itf, flags):
|
|
for p in range(len(self.paths)):
|
|
if self.paths[p].nh_itf == itf:
|
|
self.paths[p].nh_i_flags = flags
|
|
self.encoded_paths[p] = self.paths[p].encode()
|
|
break
|
|
|
|
self._test.vapi.ip_mroute_add_del(self.table_id,
|
|
self.prefix.encode(),
|
|
self.e_flags,
|
|
self.rpf_id,
|
|
[self.encoded_paths[p]],
|
|
is_add=1,
|
|
is_multipath=0)
|
|
|
|
def query_vpp_config(self):
|
|
return find_mroute(self._test,
|
|
self.prefix.gaddr,
|
|
self.prefix.saddr,
|
|
self.prefix.length,
|
|
self.table_id)
|
|
|
|
def object_id(self):
|
|
return ("%d:(%s,%s/%d)" % (self.table_id,
|
|
self.prefix.saddr,
|
|
self.prefix.gaddr,
|
|
self.prefix.length))
|
|
|
|
def get_stats(self):
|
|
c = self._test.statistics.get_counter("/net/mroute")
|
|
return c[0][self.stats_index]
|
|
|
|
|
|
class VppMFibSignal(object):
|
|
def __init__(self, test, route, interface, packet):
|
|
self.route = route
|
|
self.interface = interface
|
|
self.packet = packet
|
|
self.test = test
|
|
|
|
def compare(self, signal):
|
|
self.test.assertEqual(self.interface, signal.sw_if_index)
|
|
self.test.assertEqual(self.route.table_id, signal.table_id)
|
|
self.test.assertEqual(self.route.prefix, signal.prefix)
|
|
|
|
|
|
class VppMplsIpBind(VppObject):
|
|
"""
|
|
MPLS to IP Binding
|
|
"""
|
|
|
|
def __init__(self, test, local_label, dest_addr, dest_addr_len,
|
|
table_id=0, ip_table_id=0, is_ip6=0):
|
|
self._test = test
|
|
self.dest_addr_len = dest_addr_len
|
|
self.dest_addr = dest_addr
|
|
self.ip_addr = ip_address(text_type(dest_addr))
|
|
self.local_label = local_label
|
|
self.table_id = table_id
|
|
self.ip_table_id = ip_table_id
|
|
self.prefix = VppIpPrefix(dest_addr, dest_addr_len)
|
|
|
|
def add_vpp_config(self):
|
|
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
|
|
self.prefix.encode(),
|
|
table_id=self.table_id,
|
|
ip_table_id=self.ip_table_id)
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
self._test.vapi.mpls_ip_bind_unbind(self.local_label,
|
|
self.prefix.encode(),
|
|
table_id=self.table_id,
|
|
ip_table_id=self.ip_table_id,
|
|
is_bind=0)
|
|
|
|
def query_vpp_config(self):
|
|
dump = self._test.vapi.mpls_route_dump(self.table_id)
|
|
for e in dump:
|
|
if self.local_label == e.mr_route.mr_label \
|
|
and self.table_id == e.mr_route.mr_table_id:
|
|
return True
|
|
return False
|
|
|
|
def object_id(self):
|
|
return ("%d:%s binds %d:%s/%d"
|
|
% (self.table_id,
|
|
self.local_label,
|
|
self.ip_table_id,
|
|
self.dest_addr,
|
|
self.dest_addr_len))
|
|
|
|
|
|
class VppMplsTable(VppObject):
|
|
|
|
def __init__(self,
|
|
test,
|
|
table_id):
|
|
self._test = test
|
|
self.table_id = table_id
|
|
|
|
def add_vpp_config(self):
|
|
self._test.vapi.mpls_table_add_del(
|
|
self.table_id,
|
|
is_add=1)
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
self._test.vapi.mpls_table_add_del(
|
|
self.table_id,
|
|
is_add=0)
|
|
|
|
def query_vpp_config(self):
|
|
dump = self._test.vapi.mpls_table_dump()
|
|
for d in dump:
|
|
if d.mt_table.mt_table_id == self.table_id:
|
|
return True
|
|
return False
|
|
|
|
def object_id(self):
|
|
return ("table-mpls-%d" % (self.table_id))
|
|
|
|
|
|
class VppMplsRoute(VppObject):
|
|
"""
|
|
MPLS Route/LSP
|
|
"""
|
|
|
|
def __init__(self, test, local_label, eos_bit, paths, table_id=0,
|
|
is_multicast=0,
|
|
eos_proto=FibPathProto.FIB_PATH_NH_PROTO_IP4):
|
|
self._test = test
|
|
self.paths = paths
|
|
self.local_label = local_label
|
|
self.eos_bit = eos_bit
|
|
self.eos_proto = eos_proto
|
|
self.table_id = table_id
|
|
self.is_multicast = is_multicast
|
|
|
|
def add_vpp_config(self):
|
|
paths = []
|
|
for path in self.paths:
|
|
paths.append(path.encode())
|
|
|
|
r = self._test.vapi.mpls_route_add_del(self.table_id,
|
|
self.local_label,
|
|
self.eos_bit,
|
|
self.eos_proto,
|
|
self.is_multicast,
|
|
paths, 1, 0)
|
|
self.stats_index = r.stats_index
|
|
self._test.registry.register(self, self._test.logger)
|
|
|
|
def remove_vpp_config(self):
|
|
paths = []
|
|
for path in self.paths:
|
|
paths.append(path.encode())
|
|
|
|
self._test.vapi.mpls_route_add_del(self.table_id,
|
|
self.local_label,
|
|
self.eos_bit,
|
|
self.eos_proto,
|
|
self.is_multicast,
|
|
paths, 0, 0)
|
|
|
|
def query_vpp_config(self):
|
|
return find_mpls_route(self._test, self.table_id,
|
|
self.local_label, self.eos_bit)
|
|
|
|
def object_id(self):
|
|
return ("mpls-route-%d:%s/%d"
|
|
% (self.table_id,
|
|
self.local_label,
|
|
20 + self.eos_bit))
|
|
|
|
def get_stats_to(self):
|
|
c = self._test.statistics.get_counter("/net/route/to")
|
|
return c[0][self.stats_index]
|
|
|
|
def get_stats_via(self):
|
|
c = self._test.statistics.get_counter("/net/route/via")
|
|
return c[0][self.stats_index]
|