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authorFlorin Coras <fcoras@cisco.com>2017-10-14 11:02:37 -0700
committerFlorin Coras <florin.coras@gmail.com>2017-10-15 20:20:03 +0000
commitd172a62365523427aebd34444736632c9a68a463 (patch)
tree673707d7671b1d0c5182dd28dd72392dbae77467 /src/vlib/lex.h
parentd0a59722135ec77e637097ef99edb6865bc38929 (diff)
ip: avoid arp assert if out of buffers (VPP-1030)
Change-Id: Ia31b978c6c1619c3e0075a84fcbbb6ccbf1c0076 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vlib/lex.h')
0 files changed, 0 insertions, 0 deletions
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"""
  IP Routes

  object abstractions for representing IP routes in VPP
"""

import socket

# from vnet/vnet/mpls/mpls_types.h
MPLS_IETF_MAX_LABEL = 0xfffff
MPLS_LABEL_INVALID = MPLS_IETF_MAX_LABEL + 1


class RoutePath:

    def __init__(
            self,
            nh_addr,
            nh_sw_if_index,
            nh_table_id=0,
            labels=[],
            nh_via_label=MPLS_LABEL_INVALID):
        self.nh_addr = socket.inet_pton(socket.AF_INET, nh_addr)
        self.nh_itf = nh_sw_if_index
        self.nh_table_id = nh_table_id
        self.nh_via_label = nh_via_label
        self.nh_labels = labels


class IpRoute:
    """
    IP Route
    """

    def __init__(self, test, dest_addr,
                 dest_addr_len, paths, table_id=0):
        self._test = test
        self.paths = paths
        self.dest_addr = socket.inet_pton(socket.AF_INET, dest_addr)
        self.dest_addr_len = dest_addr_len
        self.table_id = table_id

    def add_vpp_config(self):
        for path in self.paths:
            self._test.vapi.ip_add_del_route(
                self.dest_addr,
                self.dest_addr_len,
                path.nh_addr,
                path.nh_itf,
                table_id=self.table_id,
                next_hop_out_label_stack=path.nh_labels,
                next_hop_n_out_labels=len(
                    path.nh_labels),
                next_hop_via_label=path.nh_via_label)

    def remove_vpp_config(self):
        for path in self.paths:
            self._test.vapi.ip_add_del_route(self.dest_addr,
                                             self.dest_addr_len,
                                             path.nh_addr,
                                             path.nh_itf,
                                             table_id=self.table_id,
                                             is_add=0)


class MplsIpBind:
    """
    MPLS to IP Binding
    """

    def __init__(self, test, local_label, dest_addr, dest_addr_len):
        self._test = test
        self.dest_addr = socket.inet_pton(socket.AF_INET, dest_addr)
        self.dest_addr_len = dest_addr_len
        self.local_label = local_label

    def add_vpp_config(self):
        self._test.vapi.mpls_ip_bind_unbind(self.local_label,
                                            self.dest_addr,
                                            self.dest_addr_len)

    def remove_vpp_config(self):
        self._test.vapi.mpls_ip_bind_unbind(self.local_label,
                                            self.dest_addr,
                                            self.dest_addr_len,
                                            is_bind=0)


class MplsRoute:
    """
    MPLS Route
    """

    def __init__(self, test, local_label, eos_bit, paths, table_id=0):
        self._test = test
        self.paths = paths
        self.local_label = local_label
        self.eos_bit = eos_bit
        self.table_id = table_id

    def add_vpp_config(self):
        for path in self.paths:
            self._test.vapi.mpls_route_add_del(
                self.local_label,
                self.eos_bit,
                1,
                path.nh_addr,
                path.nh_itf,
                table_id=self.table_id,
                next_hop_out_label_stack=path.nh_labels,
                next_hop_n_out_labels=len(
                    path.nh_labels),
                next_hop_via_label=path.nh_via_label,
                next_hop_table_id=path.nh_table_id)

    def remove_vpp_config(self):
        for path in self.paths:
            self._test.vapi.mpls_route_add_del(self.local_label,
                                               self.eos_bit,
                                               1,
                                               path.nh_addr,
                                               path.nh_itf,
                                               table_id=self.table_id,
                                               is_add=0)