tests: move ip6 punt setup to its own class - vpp

diff options

author	Brian Russell <brian@graphiant.com>	2021-01-19 16:58:14 +0000
committer	Neale Ranns <neale@graphiant.com>	2021-01-28 10:27:52 +0000
commit	a1f360647f1c89908294bf06667fba60f4369e8b (patch)
tree	709224836919ac1017a4642346389fd959d5c1ac /test/ext/vapi_c_test.c
parent	c8f3cdf68a4ce4c480f96b9ca0a8f273ab79cd5e (diff)

tests: move ip6 punt setup to its own class

Move interface and packet setup for the ip6 punt test to its own class so that child classes can be created that use it. Type: test Signed-off-by: Brian Russell <brian@graphiant.com> Change-Id: I14acedc1bcd12cb320835a36833cd32303c5f793

Diffstat (limited to 'test/ext/vapi_c_test.c')

0 files changed, 0 insertions, 0 deletions

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"""
  IP Routes

  object abstractions for representing IP routes in VPP
"""

from vpp_object import *
from socket import inet_pton, inet_ntop, AF_INET, AF_INET6

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


class MRouteItfFlags:
    MFIB_ITF_FLAG_NONE = 0
    MFIB_ITF_FLAG_NEGATE_SIGNAL = 1
    MFIB_ITF_FLAG_ACCEPT = 2
    MFIB_ITF_FLAG_FORWARD = 4
    MFIB_ITF_FLAG_SIGNAL_PRESENT = 8
    MFIB_ITF_FLAG_INTERNAL_COPY = 16


class MRouteEntryFlags:
    MFIB_ENTRY_FLAG_NONE = 0
    MFIB_ENTRY_FLAG_SIGNAL = 1
    MFIB_ENTRY_FLAG_DROP = 2
    MFIB_ENTRY_FLAG_CONNECTED = 4
    MFIB_ENTRY_FLAG_INHERIT_ACCEPT = 8


class DpoProto:
    DPO_PROTO_IP4 = 0
    DPO_PROTO_IP6 = 1
    DPO_PROTO_MPLS = 2
    DPO_PROTO_ETHERNET = 3
    DPO_PROTO_BIER = 4
    DPO_PROTO_NSH = 5


class MplsLspMode:
    PIPE = 0
    UNIFORM = 1


def find_route(test, ip_addr, len, table_id=0, inet=AF_INET):
    if inet == AF_INET:
        s = 4
        routes = test.vapi.ip_fib_dump()
    else:
        s = 16
        routes = test.vapi.ip6_fib_dump()

    route_addr = inet_pton(inet, ip_addr)
    for e in routes:
        if route_addr == e.address[:s] \
           and len == e.address_length \
           and table_id == e.table_id:
            return True
    return False


def find_mroute(test, grp_addr, src_addr, grp_addr_len,
                table_id=0, inet=AF_INET):
    if inet == AF_INET:
        s = 4
        routes = test.vapi.ip_mfib_dump()
    else:
        s = 16
        routes = test.vapi.ip6_mfib_dump()
    gaddr = inet_pton(inet, grp_addr)
    saddr = inet_pton(inet, src_addr)
    for e in routes:
        if gaddr == e.grp_address[:s] \
           and grp_addr_len == e.address_length \
           and saddr == e.src_address[:s] \
           and table_id == e.table_id:
            return True
    return False


class VppIpTable(VppObject):

    def __init__(self,
                 test,
                 table_id,
                 is_ip6=0):
        self._test = test
        self.table_id = table_id
        self.is_ip6 = is_ip6

    def add_vpp_config(self):
        self._test.vapi.ip_table_add_del(
            self.table_id,
            is_ipv6=self.is_ip6,
            is_add=1)
        self._test.registry.register(self, self._test.logger)

    def remove_vpp_config(self):
        self._test.vapi.ip_table_add_del(
            self.table_id,
            is_ipv6=self.is_ip6,
            is_add=0)

    def query_vpp_config(self):
        # find the default route
        return find_route(self._test,
                          "::" if self.is_ip6 else "0.0.0.0",
                          0,
                          self.table_id,
                          inet=AF_INET6 if self.is_ip6 == 1 else AF_INET)

    def __str__(self):
        return self.object_id()

    def object_id(self):
        return ("table-%s-%d" %
                ("v6" if self.is_ip6 == 1 else "v4",
                 self.table_id))


class VppMplsLabel(object):
    def __init__(self, value, mode=MplsLspMode.PIPE, ttl=64, exp=0):
        self.value = value
        self.mode = mode
        self.ttl = ttl
        self.exp = exp

    def encode(self):
        is_uniform = 0 if self.mode is MplsLspMode.PIPE else 1
        return {'label': self.value,
                'ttl': self.ttl,
                'exp': self.exp,
                'is_uniform': is_uniform}


class VppRoutePath(object):

    def __init__(
            self,
            nh_addr,
            nh_sw_if_index,
            nh_table_id=0,
            labels=[],
            nh_via_label=MPLS_LABEL_INVALID,
            rpf_id=0,
            is_interface_rx=0,
            is_resolve_host=0,
            is_resolve_attached=0,
            is_source_lookup=0,
            is_udp_encap=0,
            is_dvr=0,
            next_hop_id=0xffffffff,
            proto=DpoProto.DPO_PROTO_IP4):
        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
        self.weight = 1
        self.rpf_id = rpf_id
        self.proto = proto
        if self.proto is DpoProto.DPO_PROTO_IP6:
            self.nh_addr = inet_pton(AF_INET6, nh_addr)
        elif self.proto is DpoProto.DPO_PROTO_IP4:
            self.nh_addr = inet_pton(AF_INET, nh_addr)
        else:
            self.nh_addr = inet_pton(AF_INET6, "::")
        self.is_resolve_host = is_resolve_host
        self.is_resolve_attached = is_resolve_attached
        self.is_interface_rx = is_interface_rx
        self.is_source_lookup = is_source_lookup
        self.is_rpf_id = 0
        if rpf_id != 0:
            self.is_rpf_id = 1
            self.nh_itf = rpf_id
        self.is_udp_encap = is_udp_encap
        self.next_hop_id = next_hop_id
        self.is_dvr = is_dvr

    def encode_labels(self):
        lstack = []
        for l in self.nh_labels:
            if type(l) == VppMplsLabel:
                lstack.append(l.encode())
            else:
                lstack.append({'label': l,
                               'ttl': 255})
        return lstack

    def encode(self):
        return {'next_hop': self.nh_addr,
                'weight': 1,
                'afi': 0,
                'preference': 0,
                'table_id': self.nh_table_id,
                'next_hop_id': self.next_hop_id,
                'sw_if_index': self.nh_itf,
                'afi': self.proto,
                'is_udp_encap': self.is_udp_encap,
                'n_labels': len(self.nh_labels),
                'label_stack': self.encode_labels()}


class VppMRoutePath(VppRoutePath):

    def __init__(self, nh_sw_if_index, flags,
                 nh=None,
                 proto=DpoProto.DPO_PROTO_IP4,
                 bier_imp=0):
        if not nh:
            nh = "::" if proto is DpoProto.DPO_PROTO_IP6 else "0.0.0.0"
        super(VppMRoutePath, self).__init__(nh,
                                            nh_sw_if_index,
                                            proto=proto)
        self.nh_i_flags = flags
        self.bier_imp = bier_imp


class VppIpRoute(VppObject):
    """
    IP Route
    """

    def __init__(self, test, dest_addr,
                 dest_addr_len, paths, table_id=0, is_ip6=0, is_local=0,
                 is_unreach=0, is_prohibit=0):
        self._test = test
        self.paths = paths
        self.dest_addr_len = dest_addr_len
        self.table_id = table_id
        self.is_ip6 = is_ip6
        self.is_local = is_local
        self.is_unreach = is_unreach
        self.is_prohibit = is_prohibit
        self.dest_addr_p = dest_addr
        if is_ip6:
            self.dest_addr = inet_pton(AF_INET6, dest_addr)
        else:
            self.dest_addr = inet_pton(AF_INET, dest_addr)

    def modify(self, paths, is_local=0,
               is_unreach=0, is_prohibit=0):
        self.paths = paths
        self.is_local = is_local
        self.is_unreach = is_unreach
        self.is_prohibit = is_prohibit

    def add_vpp_config(self):
        if self.is_local or self.is_unreach or self.is_prohibit:
            self._test.vapi.ip_add_del_route(
                self.dest_addr,
                self.dest_addr_len,
                inet_pton(AF_INET6, "::"),
                0xffffffff,
                is_local=self.is_local,
                is_unreach=self.is_unreach,
                is_prohibit=self.is_prohibit,
                table_id=self.table_id,
                is_ipv6=self.is_ip6)
        else:
            for path in self.paths:
                lstack = path.encode_labels()

                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=lstack,
                    next_hop_n_out_labels=len(lstack),
                    next_hop_via_label=path.nh_via_label,
                    next_hop_table_id=path.nh_table_id,
                    next_hop_id=path.next_hop_id,
                    is_ipv6=self.is_ip6,
                    is_dvr=path.is_dvr,
                    is_resolve_host=path.is_resolve_host,
                    is_resolve_attached=path.is_resolve_attached,
                    is_source_lookup=path.is_source_lookup,
                    is_udp_encap=path.is_udp_encap,
                    is_multipath=1 if len(self.paths) > 1 else 0)
        self._test.registry.register(self, self._test.logger)

    def remove_vpp_config(self):
        if self.is_local or self.is_unreach or self.is_prohibit:
            self._test.vapi.ip_add_del_route(
                self.dest_addr,
                self.dest_addr_len,
                inet_pton(AF_INET6, "::"),
                0xffffffff,
                is_local=self.is_local,
                is_unreach=self.is_unreach,
                is_prohibit=self.is_prohibit,
                is_add=0,
                table_id=self.table_id,
                is_ipv6=self.is_ip6)
        else:
            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_table_id=path.nh_table_id,
                    next_hop_via_label=path.nh_via_label,
                    next_hop_id=path.next_hop_id,
                    is_add=0,
                    is_udp_encap=path.is_udp_encap,
                    is_ipv6=self.is_ip6,
                    is_dvr=path.is_dvr)

    def query_vpp_config(self):
        return find_route(self._test,
                          self.dest_addr_p,
                          self.dest_addr_len,
                          self.table_id,
                          inet=AF_INET6 if self.is_ip6 == 1 else AF_INET)

    def __str__(self):
        return self.object_id()

    def object_id(self):
        return ("%d:%s/%d"
                % (self.table_id,
                   self.dest_addr_p,
                   self.dest_addr_len))


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, is_ip6=0):
        self._test = test
        self.paths = paths
        self.grp_addr_len = grp_addr_len
        self.table_id = table_id
        self.e_flags = e_flags
        self.is_ip6 = is_ip6
        self.rpf_id = rpf_id

        self.grp_addr_p = grp_addr
        self.src_addr_p = src_addr
        if is_ip6:
            self.grp_addr = inet_pton(AF_INET6, grp_addr)
            self.src_addr = inet_pton(AF_INET6, src_addr)
        else:
            self.grp_addr = inet_pton(AF_INET, grp_addr)
            self.src_addr = inet_pton(AF_INET, src_addr)

    def add_vpp_config(self):
        for path in self.paths:
            self._test.vapi.ip_mroute_add_del(self.src_addr,
                                              self.grp_addr,
                                              self.grp_addr_len,
                                              self.e_flags,
                                              path.proto,
                                              path.nh_itf,
                                              path.nh_addr,
                                              path.nh_i_flags,
                                              bier_imp=path.bier_imp,
                                              rpf_id=self.rpf_id,
                                              table_id=self.table_id,
                                              is_ipv6=self.is_ip6)
        self._test.registry.register(self, self._test.logger)

    def remove_vpp_config(self):
        for path in self.paths:
            self._test.vapi.ip_mroute_add_del(self.src_addr,
                                              self.grp_addr,
                                              self.grp_addr_len,
                                              self.e_flags,
                                              path.proto,
                                              path.nh_itf,
                                              path.nh_addr,
                                              path.nh_i_flags,
                                              table_id=self.table_id,
                                              bier_imp=path.bier_imp,
                                              is_add=0,
                                              is_ipv6=self.is_ip6)

    def update_entry_flags(self, flags):
        self.e_flags = flags
        self._test.vapi.ip_mroute_add_del(self.src_addr,
                                          self.grp_addr,
                                          self.grp_addr_len,
                                          self.e_flags,
                                          0,
                                          0xffffffff,
                                          "",
                                          0,
                                          table_id=self.table_id,
                                          is_ipv6=self.is_ip6)

    def update_rpf_id(self, rpf_id):
        self.rpf_id = rpf_id
        self._test.vapi.ip_mroute_add_del(self.src_addr,
                                          self.grp_addr,
                                          self.grp_addr_len,
                                          self.e_flags,
                                          0,
                                          0xffffffff,
                                          "",
                                          0,
                                          rpf_id=self.rpf_id,
                                          table_id=self.table_id,
                                          is_ipv6=self.is_ip6)

    def update_path_flags(self, itf, flags):
        for path in self.paths:
            if path.nh_itf == itf:
                path.nh_i_flags = flags
                break
        self._test.vapi.ip_mroute_add_del(self.src_addr,
                                          self.grp_addr,
                                          self.grp_addr_len,
                                          self.e_flags,
                                          path.proto,
                                          path.nh_itf,
                                          path.nh_addr,
                                          path.nh_i_flags,
                                          table_id=self.table_id,
                                          is_ipv6=self.is_ip6)

    def query_vpp_config(self):
        return find_mroute(self._test,
                           self.grp_addr_p,
                           self.src_addr_p,
                           self.grp_addr_len,
                           self.table_id,
                           inet=AF_INET6 if self.is_ip6 == 1 else AF_INET)

    def __str__(self):
        return self.object_id()

    def object_id(self):
        if self.is_ip6:
            return ("%d:(%s,%s/%d)"
                    % (self.table_id,
                       inet_ntop(AF_INET6, self.src_addr),
                       inet_ntop(AF_INET6, self.grp_addr),
                       self.grp_addr_len))
        else:
            return ("%d:(%s,%s/%d)"
                    % (self.table_id,
                       inet_ntop(AF_INET, self.src_addr),
                       inet_ntop(AF_INET, self.grp_addr),
                       self.grp_addr_len))


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.grp_addr_len,
                              signal.grp_address_len)
        for i in range(self.route.grp_addr_len / 8):
            self.test.assertEqual(self.route.grp_addr[i],
                                  signal.grp_address[i])
        if (self.route.grp_addr_len > 32):
            for i in range(4):
                self.test.assertEqual(self.route.src_addr[i],
                                      signal.src_address[i])


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.local_label = local_label
        self.table_id = table_id
        self.ip_table_id = ip_table_id
        self.is_ip6 = is_ip6
        if is_ip6:
            self.dest_addrn = inet_pton(AF_INET6, dest_addr)
        else:
            self.dest_addrn = inet_pton(AF_INET, dest_addr)

    def add_vpp_config(self):
        self._test.vapi.mpls_ip_bind_unbind(self.local_label,
                                            self.dest_addrn,
                                            self.dest_addr_len,
                                            table_id=self.table_id,
                                            ip_table_id=self.ip_table_id,
                                            is_ip4=(self.is_ip6 == 0))
        self._test.registry.register(self, self._test.logger)

    def remove_vpp_config(self):
        self._test.vapi.mpls_ip_bind_unbind(self.local_label,
                                            self.dest_addrn,
                                            self.dest_addr_len,
                                            table_id=self.table_id,
                                            ip_table_id=self.ip_table_id,
                                            is_bind=0,
                                            is_ip4=(self.is_ip6 == 0))

    def query_vpp_config(self):
        dump = self._test.vapi.mpls_fib_dump()
        for e in dump:
            if self.local_label == e.label \
               and self.table_id == e.table_id:
                return True
        return False

    def __str__(self):
        return self.object_id()

    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):
        # find the default route
        dump = self._test.vapi.mpls_fib_dump()
        if len(dump):
            return True
        return False

    def __str__(self):
        return self.object_id()

    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):
        self._test = test
        self.paths = paths
        self.local_label = local_label
        self.eos_bit = eos_bit
        self.table_id = table_id
        self.is_multicast = is_multicast

    def add_vpp_config(self):
        is_multipath = len(self.paths) > 1
        for path in self.paths:
            lstack = path.encode_labels()

            self._test.vapi.mpls_route_add_del(
                self.local_label,
                self.eos_bit,
                path.proto,
                path.nh_addr,
                path.nh_itf,
                is_multicast=self.is_multicast,
                is_multipath=is_multipath,
                table_id=self.table_id,
                is_interface_rx=path.is_interface_rx,
                is_rpf_id=path.is_rpf_id,
                next_hop_out_label_stack=lstack,
                next_hop_n_out_labels=len(lstack),
                next_hop_via_label=path.nh_via_label,
                next_hop_table_id=path.nh_table_id)
        self._test.registry.register(self, self._test.logger)

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

    def query_vpp_config(self):
        dump = self._test.vapi.mpls_fib_dump()
        for e in dump:
            if self.local_label == e.label \
               and self.eos_bit == e.eos_bit \
               and self.table_id == e.table_id:
                return True
        return False

    def __str__(self):
        return self.object_id()

    def object_id(self):
        return ("%d:%s/%d"
                % (self.table_id,
                   self.local_label,
                   20+self.eos_bit))


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