csit - Integration tests

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Integration tests
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resources/libraries/bash/entry/check/tc_naming.sh
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import os
import fnmatch
import time
from hook import Hook
from collections import deque

# Sphinx creates auto-generated documentation by importing the python source
# files and collecting the docstrings from them. The NO_VPP_PAPI flag allows the
# vpp_papi_provider.py file to be importable without having to build the whole
# vpp api if the user only wishes to generate the test documentation.
do_import = True
try:
    no_vpp_papi = os.getenv("NO_VPP_PAPI")
    if no_vpp_papi == "1":
        do_import = False
except:
    pass

if do_import:
    from vpp_papi import VPP

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


class L2_VTR_OP:
    L2_POP_1 = 3


class VppPapiProvider(object):
    """VPP-api provider using vpp-papi

    @property hook: hook object providing before and after api/cli hooks


    """

    def __init__(self, name, shm_prefix, test_class):
        self.hook = Hook("vpp-papi-provider")
        self.name = name
        self.shm_prefix = shm_prefix
        self.test_class = test_class
        jsonfiles = []

        install_dir = os.getenv('VPP_TEST_INSTALL_PATH')
        for root, dirnames, filenames in os.walk(install_dir):
            for filename in fnmatch.filter(filenames, '*.api.json'):
                jsonfiles.append(os.path.join(root, filename))

        self.papi = VPP(jsonfiles)
        self._events = deque()

    def register_hook(self, hook):
        """Replace hook registration with new hook

        :param hook:

        """
        self.hook = hook

    def collect_events(self):
        """ Collect all events from the internal queue and clear the queue. """
        e = self._events
        self._events = deque()
        return e

    def wait_for_event(self, timeout, name=None):
        """ Wait for and return next event. """
        if self._events:
            self.test_class.logger.debug("Not waiting, event already queued")
        limit = time.time() + timeout
        while time.time() < limit:
            if self._events:
                e = self._events.popleft()
                if name and type(e).__name__ != name:
                    raise Exception(
                        "Unexpected event received: %s, expected: %s" %
                        (type(e).__name__, name))
                self.test_class.logger.debug("Returning event %s:%s" %
                                             (name, e))
                return e
            time.sleep(0)  # yield
        if name is not None:
            raise Exception("Event %s did not occur within timeout" % name)
        raise Exception("Event did not occur within timeout")

    def __call__(self, name, event):
        """ Enqueue event in the internal event queue. """
        # FIXME use the name instead of relying on type(e).__name__ ?
        # FIXME #2 if this throws, it is eaten silently, Ole?
        self.test_class.logger.debug("New event: %s: %s" % (name, event))
        self._events.append(event)

    def connect(self):
        """Connect the API to VPP"""
        self.papi.connect(self.name, self.shm_prefix)
        self.papi.register_event_callback(self)

    def disconnect(self):
        """Disconnect the API from VPP"""
        self.papi.disconnect()

    def api(self, api_fn, api_args, expected_retval=0):
        """ Call API function and check it's return value.
        Call the appropriate hooks before and after the API call

        :param api_fn: API function to call
        :param api_args: tuple of API function arguments
        :param expected_retval: Expected return value (Default value = 0)
        :returns: reply from the API

        """
        self.hook.before_api(api_fn.__name__, api_args)
        reply = api_fn(**api_args)
        if hasattr(reply, 'retval') and reply.retval != expected_retval:
            msg = "API call failed, expected retval == %d, got %s" % (
                expected_retval, repr(reply))
            self.test_class.logger.info(msg)
            raise Exception(msg)
        self.hook.after_api(api_fn.__name__, api_args)
        return reply

    def cli(self, cli):
        """ Execute a CLI, calling the before/after hooks appropriately.

        :param cli: CLI to execute
        :returns: CLI output

        """
        self.hook.before_cli(cli)
        cli += '\n'
        r = self.papi.cli_inband(length=len(cli), cmd=cli)
        self.hook.after_cli(cli)
        if hasattr(r, 'reply'):
            return r.reply.decode().rstrip('\x00')

    def ppcli(self, cli):
        """ Helper method to print CLI command in case of info logging level.

        :param cli: CLI to execute
        :returns: CLI output
        """
        return cli + "\n" + str(self.cli(cli))

    def _convert_mac(self, mac):
        return int(mac.replace(":", ""), 16) << 16

    def show_version(self):
        """ """
        return self.papi.show_version()

    def pg_create_interface(self, pg_index):
        """

        :param pg_index:

        """
        return self.api(self.papi.pg_create_interface,
                        {"interface_id": pg_index})

    def sw_interface_dump(self, filter=None):
        """

        :param filter:  (Default value = None)

        """
        if filter is not None:
            args = {"name_filter_valid": 1, "name_filter": filter}
        else:
            args = {}
        return self.api(self.papi.sw_interface_dump, args)

    def sw_interface_set_table(self, sw_if_index, is_ipv6, table_id):
        """ Set the IPvX Table-id for the Interface

        :param sw_if_index:
        :param is_ipv6:
        :param table_id:

        """
        return self.api(self.papi.sw_interface_set_table,
                        {'sw_if_index': sw_if_index, 'is_ipv6': is_ipv6,
                         'vrf_id': table_id})

    def sw_interface_add_del_address(self, sw_if_index, addr, addr_len,
                                     is_ipv6=0, is_add=1, del_all=0):
        """

        :param addr: param is_ipv6:  (Default value = 0)
        :param sw_if_index:
        :param addr_len:
        :param is_ipv6:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param del_all:  (Default value = 0)

        """
        return self.api(self.papi.sw_interface_add_del_address,
                        {'sw_if_index': sw_if_index,
                         'is_add': is_add,
                         'is_ipv6': is_ipv6,
                         'del_all': del_all,
                         'address_length': addr_len,
                         'address': addr})

    def sw_interface_enable_disable_mpls(self, sw_if_index,
                                         is_enable=1):
        """
        Enable/Disable MPLS on the interface
        :param sw_if_index:
        :param is_enable:  (Default value = 1)

        """
        return self.api(self.papi.sw_interface_set_mpls_enable,
                        {'sw_if_index': sw_if_index,
                         'enable': is_enable})

    def sw_interface_ra_suppress(self, sw_if_index):
        return self.api(self.papi.sw_interface_ip6nd_ra_config,
                        {'sw_if_index': sw_if_index})

    def vxlan_add_del_tunnel(
            self,
            src_addr,
            dst_addr,
            mcast_sw_if_index=0xFFFFFFFF,
            is_add=1,
            is_ipv6=0,
            encap_vrf_id=0,
            decap_next_index=0xFFFFFFFF,
            vni=0):
        """

        :param dst_addr:
        :param src_addr:
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param encap_vrf_id:  (Default value = 0)
        :param decap_next_index:  (Default value = 0xFFFFFFFF)
        :param mcast_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vni:  (Default value = 0)

        """
        return self.api(self.papi.vxlan_add_del_tunnel,
                        {'is_add': is_add,
                         'is_ipv6': is_ipv6,
                         'src_address': src_addr,
                         'dst_address': dst_addr,
                         'mcast_sw_if_index': mcast_sw_if_index,
                         'encap_vrf_id': encap_vrf_id,
                         'decap_next_index': decap_next_index,
                         'vni': vni})

    def bridge_domain_add_del(self, bd_id, flood=1, uu_flood=1, forward=1,
                              learn=1, arp_term=0, is_add=1):
        """Create/delete bridge domain.

        :param int bd_id: Bridge domain index.
        :param int flood: Enable/disable bcast/mcast flooding in the BD.
            (Default value = 1)
        :param int uu_flood: Enable/disable unknown unicast flood in the BD.
            (Default value = 1)
        :param int forward: Enable/disable forwarding on all interfaces in
            the BD. (Default value = 1)
        :param int learn: Enable/disable learning on all interfaces in the BD.
            (Default value = 1)
        :param int arp_term: Enable/disable arp termination in the BD.
            (Default value = 1)
        :param int is_add: Add or delete flag. (Default value = 1)
        """
        return self.api(self.papi.bridge_domain_add_del,
                        {'bd_id': bd_id,
                         'flood': flood,
                         'uu_flood': uu_flood,
                         'forward': forward,
                         'learn': learn,
                         'arp_term': arp_term,
                         'is_add': is_add})

    def l2fib_add_del(self, mac, bd_id, sw_if_index, is_add=1, static_mac=0,
                      filter_mac=0, bvi_mac=0):
        """Create/delete L2 FIB entry.

        :param str mac: MAC address to create FIB entry for.
        :param int bd_id: Bridge domain index.
        :param int sw_if_index: Software interface index of the interface.
        :param int is_add: Add or delete flag. (Default value = 1)
        :param int static_mac: Set to 1 to create static MAC entry.
            (Default value = 0)
        :param int filter_mac: Set to 1 to drop packet that's source or
            destination MAC address contains defined MAC address.
            (Default value = 0)
        :param int bvi_mac: Set to 1 to create entry that points to BVI
            interface. (Default value = 0)
        """
        return self.api(self.papi.l2fib_add_del,
                        {'mac': self._convert_mac(mac),
                         'bd_id': bd_id,
                         'sw_if_index': sw_if_index,
                         'is_add': is_add,
                         'static_mac': static_mac,
                         'filter_mac': filter_mac,
                         'bvi_mac': bvi_mac})

    def sw_interface_set_l2_bridge(self, sw_if_index, bd_id,
                                   shg=0, bvi=0, enable=1):
        """Add/remove interface to/from bridge domain.

        :param int sw_if_index: Software interface index of the interface.
        :param int bd_id: Bridge domain index.
        :param int shg: Split-horizon group index. (Default value = 0)
        :param int bvi: Set interface as a bridge group virtual interface.
            (Default value = 0)
        :param int enable: Add or remove interface. (Default value = 1)
        """
        return self.api(self.papi.sw_interface_set_l2_bridge,
                        {'rx_sw_if_index': sw_if_index,
                         'bd_id': bd_id,
                         'shg': shg,
                         'bvi': bvi,
                         'enable': enable})

    def bridge_flags(self, bd_id, is_set, feature_bitmap):
        """Enable/disable required feature of the bridge domain with defined ID.

        :param int bd_id: Bridge domain ID.
        :param int is_set: Set to 1 to enable, set to 0 to disable the feature.
        :param int feature_bitmap: Bitmap value of the feature to be set:
            - learn (1 << 0),
            - forward (1 << 1),
            - flood (1 << 2),
            - uu-flood (1 << 3) or
            - arp-term (1 << 4).
        """
        return self.api(self.papi.bridge_flags,
                        {'bd_id': bd_id,
                         'is_set': is_set,
                         'feature_bitmap': feature_bitmap})

    def bridge_domain_dump(self, bd_id=0):
        """

        :param int bd_id: Bridge domain ID. (Default value = 0 => dump of all
            existing bridge domains returned)
        :return: Dictionary of bridge domain(s) data.
        """
        return self.api(self.papi.bridge_domain_dump,
                        {'bd_id': bd_id})

    def sw_interface_set_l2_xconnect(self, rx_sw_if_index, tx_sw_if_index,
                                     enable):
        """Create or delete unidirectional cross-connect from Tx interface to
        Rx interface.

        :param int rx_sw_if_index: Software interface index of Rx interface.
        :param int tx_sw_if_index: Software interface index of Tx interface.
        :param int enable: Create cross-connect if equal to 1, delete
            cross-connect if equal to 0.

        """
        return self.api(self.papi.sw_interface_set_l2_xconnect,
                        {'rx_sw_if_index': rx_sw_if_index,
                         'tx_sw_if_index': tx_sw_if_index,
                         'enable': enable})

    def sw_interface_set_l2_tag_rewrite(
            self,
            sw_if_index,
            vtr_oper,
            push=0,
            tag1=0,
            tag2=0):
        """L2 interface vlan tag rewrite configure request
        :param client_index - opaque cookie to identify the sender
        :param context - sender context, to match reply w/ request
        :param sw_if_index - interface the operation is applied to
        :param vtr_op - Choose from l2_vtr_op_t enum values
        :param push_dot1q - first pushed flag dot1q id set, else dot1ad
        :param tag1 - Needed for any push or translate vtr op
        :param tag2 - Needed for any push 2 or translate x-2 vtr ops

        """
        return self.api(self.papi.l2_interface_vlan_tag_rewrite,
                        {'sw_if_index': sw_if_index,
                         'vtr_op': vtr_oper,
                         'push_dot1q': push,
                         'tag1': tag1,
                         'tag2': tag2})

    def sw_interface_set_flags(self, sw_if_index, admin_up_down,
                               link_up_down=0, deleted=0):
        """

        :param admin_up_down:
        :param sw_if_index:
        :param link_up_down:  (Default value = 0)
        :param deleted:  (Default value = 0)

        """
        return self.api(self.papi.sw_interface_set_flags,
                        {'sw_if_index': sw_if_index,
                         'admin_up_down': admin_up_down,
                         'link_up_down': link_up_down,
                         'deleted': deleted})

    def create_subif(self, sw_if_index, sub_id, outer_vlan, inner_vlan,
                     no_tags=0, one_tag=0, two_tags=0, dot1ad=0, exact_match=0,
                     default_sub=0, outer_vlan_id_any=0, inner_vlan_id_any=0):
        """Create subinterface
        from vpe.api: set dot1ad = 0 for dot1q, set dot1ad = 1 for dot1ad

        :param sub_id: param inner_vlan:
        :param sw_if_index:
        :param outer_vlan:
        :param inner_vlan:
        :param no_tags:  (Default value = 0)
        :param one_tag:  (Default value = 0)
        :param two_tags:  (Default value = 0)
        :param dot1ad:  (Default value = 0)
        :param exact_match:  (Default value = 0)
        :param default_sub:  (Default value = 0)
        :param outer_vlan_id_any:  (Default value = 0)
        :param inner_vlan_id_any:  (Default value = 0)

        """
        return self.api(
            self.papi.create_subif,
            {'sw_if_index': sw_if_index,
             'sub_id': sub_id,
             'no_tags': no_tags,
             'one_tag': one_tag,
             'two_tags': two_tags,
             'dot1ad': dot1ad,
             'exact_match': exact_match,
             'default_sub': default_sub,
             'outer_vlan_id_any': outer_vlan_id_any,
             'inner_vlan_id_any': inner_vlan_id_any,
             'outer_vlan_id': outer_vlan,
             'inner_vlan_id': inner_vlan})

    def delete_subif(self, sw_if_index):
        """Delete subinterface

        :param sw_if_index:
        """
        return self.api(self.papi.delete_subif,
                        {'sw_if_index': sw_if_index})

    def create_vlan_subif(self, sw_if_index, vlan):
        """

        :param vlan:
        :param sw_if_index:

        """
        return self.api(self.papi.create_vlan_subif,
                        {'sw_if_index': sw_if_index,
                         'vlan_id': vlan})

    def create_loopback(self, mac=''):
        """

        :param mac: (Optional)
        """
        return self.api(self.papi.create_loopback,
                        {'mac_address': mac})

    def ip_add_del_route(
            self,
            dst_address,
            dst_address_length,
            next_hop_address,
            next_hop_sw_if_index=0xFFFFFFFF,
            table_id=0,
            next_hop_table_id=0,
            next_hop_weight=1,
            next_hop_n_out_labels=0,
            next_hop_out_label_stack=[],
            next_hop_via_label=MPLS_LABEL_INVALID,
            create_vrf_if_needed=0,
            is_resolve_host=0,
            is_resolve_attached=0,
            classify_table_index=0xFFFFFFFF,
            is_add=1,
            is_drop=0,
            is_unreach=0,
            is_prohibit=0,
            is_ipv6=0,
            is_local=0,
            is_classify=0,
            is_multipath=0,
            not_last=0):
        """

        :param dst_address_length:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param dst_address:
        :param next_hop_address:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vrf_id:  (Default value = 0)
        :param lookup_in_vrf:  (Default value = 0)
        :param classify_table_index:  (Default value = 0xFFFFFFFF)
        :param create_vrf_if_needed:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_drop:  (Default value = 0)
        :param is_ipv6:  (Default value = 0)
        :param is_local:  (Default value = 0)
        :param is_classify:  (Default value = 0)
        :param is_multipath:  (Default value = 0)
        :param is_resolve_host:  (Default value = 0)
        :param is_resolve_attached:  (Default value = 0)
        :param not_last:  (Default value = 0)
        :param next_hop_weight:  (Default value = 1)

        """

        return self.api(
            self.papi.ip_add_del_route,
            {'next_hop_sw_if_index': next_hop_sw_if_index,
             'table_id': table_id,
             'classify_table_index': classify_table_index,
             'next_hop_table_id': next_hop_table_id,
             'create_vrf_if_needed': create_vrf_if_needed,
             'is_add': is_add,
             'is_drop': is_drop,
             'is_unreach': is_unreach,
             'is_prohibit': is_prohibit,
             'is_ipv6': is_ipv6,
             'is_local': is_local,
             'is_classify': is_classify,
             'is_multipath': is_multipath,
             'is_resolve_host': is_resolve_host,
             'is_resolve_attached': is_resolve_attached,
             'not_last': not_last,
             'next_hop_weight': next_hop_weight,
             'dst_address_length': dst_address_length,
             'dst_address': dst_address,
             'next_hop_address': next_hop_address,
             'next_hop_n_out_labels': next_hop_n_out_labels,
             'next_hop_via_label': next_hop_via_label,
             'next_hop_out_label_stack': next_hop_out_label_stack})

    def ip_fib_dump(self):
        return self.api(self.papi.ip_fib_dump, {})

    def ip_neighbor_add_del(self,
                            sw_if_index,
                            mac_address,
                            dst_address,
                            vrf_id=0,
                            is_add=1,
                            is_ipv6=0,
                            is_static=0,
                            ):
        """ Add neighbor MAC to IPv4 or IPv6 address.

        :param sw_if_index:
        :param mac_address:
        :param dst_address:
        :param vrf_id:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param is_static:  (Default value = 0)
        """

        return self.api(
            self.papi.ip_neighbor_add_del,
            {'vrf_id': vrf_id,
             'sw_if_index': sw_if_index,
             'is_add': is_add,
             'is_ipv6': is_ipv6,
             'is_static': is_static,
             'mac_address': mac_address,
             'dst_address': dst_address
             }
        )

    def sw_interface_span_enable_disable(
            self, sw_if_index_from, sw_if_index_to, state=1):
        """

        :param sw_if_index_from:
        :param sw_if_index_to:
        :param state:
        """
        return self.api(self.papi.sw_interface_span_enable_disable,
                        {'sw_if_index_from': sw_if_index_from,
                         'sw_if_index_to': sw_if_index_to,
                         'state': state})

    def gre_tunnel_add_del(self,
                           src_address,
                           dst_address,
                           outer_fib_id=0,
                           is_teb=0,
                           is_add=1,
                           is_ip6=0):
        """ Add a GRE tunnel

        :param src_address:
        :param dst_address:
        :param outer_fib_id:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param is_teb:  (Default value = 0)
        """

        return self.api(
            self.papi.gre_add_del_tunnel,
            {'is_add': is_add,
             'is_ipv6': is_ip6,
             'teb': is_teb,
             'src_address': src_address,
             'dst_address': dst_address,
             'outer_fib_id': outer_fib_id}
        )

    def mpls_route_add_del(
            self,
            label,
            eos,
            next_hop_proto_is_ip4,
            next_hop_address,
            next_hop_sw_if_index=0xFFFFFFFF,
            table_id=0,
            next_hop_table_id=0,
            next_hop_weight=1,
            next_hop_n_out_labels=0,
            next_hop_out_label_stack=[],
            next_hop_via_label=MPLS_LABEL_INVALID,
            create_vrf_if_needed=0,
            is_resolve_host=0,
            is_resolve_attached=0,
            is_add=1,
            is_drop=0,
            is_multipath=0,
            classify_table_index=0xFFFFFFFF,
            is_classify=0,
            not_last=0):
        """

        :param dst_address_length:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param dst_address:
        :param next_hop_address:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vrf_id:  (Default value = 0)
        :param lookup_in_vrf:  (Default value = 0)
        :param classify_table_index:  (Default value = 0xFFFFFFFF)
        :param create_vrf_if_needed:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_drop:  (Default value = 0)
        :param is_ipv6:  (Default value = 0)
        :param is_local:  (Default value = 0)
        :param is_classify:  (Default value = 0)
        :param is_multipath:  (Default value = 0)
        :param is_resolve_host:  (Default value = 0)
        :param is_resolve_attached:  (Default value = 0)
        :param not_last:  (Default value = 0)
        :param next_hop_weight:  (Default value = 1)

        """

        return self.api(
            self.papi.mpls_route_add_del,
            {'mr_label': label,
             'mr_eos': eos,
             'mr_table_id': table_id,
             'mr_classify_table_index': classify_table_index,
             'mr_create_table_if_needed': create_vrf_if_needed,
             'mr_is_add': is_add,
             'mr_is_classify': is_classify,
             'mr_is_multipath': is_multipath,
             'mr_is_resolve_host': is_resolve_host,
             'mr_is_resolve_attached': is_resolve_attached,
             'mr_next_hop_proto_is_ip4': next_hop_proto_is_ip4,
             'mr_next_hop_weight': next_hop_weight,
             'mr_next_hop': next_hop_address,
             'mr_next_hop_n_out_labels': next_hop_n_out_labels,
             'mr_next_hop_sw_if_index': next_hop_sw_if_index,
             'mr_next_hop_table_id': next_hop_table_id,
             'mr_next_hop_via_label': next_hop_via_label,
             'mr_next_hop_out_label_stack': next_hop_out_label_stack})

    def mpls_ip_bind_unbind(
            self,
            label,
            dst_address,
            dst_address_length,
            table_id=0,
            ip_table_id=0,
            is_ip4=1,
            create_vrf_if_needed=0,
            is_bind=1):
        """
        """
        return self.api(
            self.papi.mpls_ip_bind_unbind,
            {'mb_mpls_table_id': table_id,
             'mb_label': label,
             'mb_ip_table_id': ip_table_id,
             'mb_create_table_if_needed': create_vrf_if_needed,
             'mb_is_bind': is_bind,
             'mb_is_ip4': is_ip4,
             'mb_address_length': dst_address_length,
             'mb_address': dst_address})

    def mpls_tunnel_add_del(
            self,
            tun_sw_if_index,
            next_hop_proto_is_ip4,
            next_hop_address,
            next_hop_sw_if_index=0xFFFFFFFF,
            next_hop_table_id=0,
            next_hop_weight=1,
            next_hop_n_out_labels=0,
            next_hop_out_label_stack=[],
            next_hop_via_label=MPLS_LABEL_INVALID,
            create_vrf_if_needed=0,
            is_add=1,
            l2_only=0):
        """

        :param dst_address_length:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param dst_address:
        :param next_hop_address:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vrf_id:  (Default value = 0)
        :param lookup_in_vrf:  (Default value = 0)
        :param classify_table_index:  (Default value = 0xFFFFFFFF)
        :param create_vrf_if_needed:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_drop:  (Default value = 0)
        :param is_ipv6:  (Default value = 0)
        :param is_local:  (Default value = 0)
        :param is_classify:  (Default value = 0)
        :param is_multipath:  (Default value = 0)
        :param is_resolve_host:  (Default value = 0)
        :param is_resolve_attached:  (Default value = 0)
        :param not_last:  (Default value = 0)
        :param next_hop_weight:  (Default value = 1)

        """
        return self.api(
            self.papi.mpls_tunnel_add_del,
            {'mt_sw_if_index': tun_sw_if_index,
             'mt_is_add': is_add,
             'mt_l2_only': l2_only,
             'mt_next_hop_proto_is_ip4': next_hop_proto_is_ip4,
             'mt_next_hop_weight': next_hop_weight,
             'mt_next_hop': next_hop_address,
             'mt_next_hop_n_out_labels': next_hop_n_out_labels,
             'mt_next_hop_sw_if_index': next_hop_sw_if_index,
             'mt_next_hop_table_id': next_hop_table_id,
             'mt_next_hop_out_label_stack': next_hop_out_label_stack})

    def snat_interface_add_del_feature(
            self,
            sw_if_index,
            is_inside=1,
            is_add=1):
        """Enable/disable S-NAT feature on the interface

        :param sw_if_index: Software index of the interface
        :param is_inside: 1 if inside, 0 if outside (Default value = 1)
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.snat_interface_add_del_feature,
            {'is_add': is_add,
             'is_inside': is_inside,
             'sw_if_index': sw_if_index})

    def snat_add_static_mapping(
            self,
            local_ip,
            external_ip,
            local_port=0,
            external_port=0,
            addr_only=1,
            vrf_id=0,
            is_add=1,
            is_ip4=1):
        """Add/delete S-NAT static mapping

        :param local_ip: Local IP address
        :param external_ip: External IP address
        :param local_port: Local port number (Default value = 0)
        :param external_port: External port number (Default value = 0)
        :param addr_only: 1 if address only mapping, 0 if address and port
        :param vrf_id: VRF ID
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        :param is_ip4: 1 if address type is IPv4 (Default value = 1)
        """
        return self.api(
            self.papi.snat_add_static_mapping,
            {'is_add': is_add,
             'is_ip4': is_ip4,
             'addr_only': addr_only,
             'local_ip_address': local_ip,
             'external_ip_address': external_ip,
             'local_port': local_port,
             'external_port': external_port,
             'vrf_id': vrf_id})

    def snat_add_address_range(
            self,
            first_ip_address,
            last_ip_address,
            is_add=1,
            is_ip4=1):
        """Add/del S-NAT address range

        :param first_ip_address: First IP address
        :param last_ip_address: Last IP address
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        :param is_ip4: 1 if address type is IPv4 (Default value = 1)
        """
        return self.api(
            self.papi.snat_add_address_range,
            {'is_ip4': is_ip4,
             'first_ip_address': first_ip_address,
             'last_ip_address': last_ip_address,
             'is_add': is_add})

    def snat_address_dump(self):
        """Dump S-NAT addresses
        :return: Dictionary of S-NAT addresses
        """
        return self.api(self.papi.snat_address_dump, {})

    def snat_interface_dump(self):
        """Dump interfaces with S-NAT feature
        :return: Dictionary of interfaces with S-NAT feature
        """
        return self.api(self.papi.snat_interface_dump, {})

    def snat_static_mapping_dump(self):
        """Dump S-NAT static mappings
        :return: Dictionary of S-NAT static mappings
        """
        return self.api(self.papi.snat_static_mapping_dump, {})

    def snat_show_config(self):
        """Show S-NAT config
        :return: S-NAT config parameters
        """
        return self.api(self.papi.snat_show_config, {})

    def control_ping(self):
        self.api(self.papi.control_ping)

    def bfd_udp_add(self, sw_if_index, desired_min_tx, required_min_rx,
                    detect_mult, local_addr, peer_addr, is_ipv6=0):
        return self.api(self.papi.bfd_udp_add,
                        {
                            'sw_if_index': sw_if_index,
                            'desired_min_tx': desired_min_tx,
                            'required_min_rx': required_min_rx,
                            'local_addr': local_addr,
                            'peer_addr': peer_addr,
                            'is_ipv6': is_ipv6,
                            'detect_mult': detect_mult,
                        })

    def bfd_udp_del(self, sw_if_index, local_addr, peer_addr, is_ipv6=0):
        return self.api(self.papi.bfd_udp_del,
                        {
                            'sw_if_index': sw_if_index,
                            'local_addr': local_addr,
                            'peer_addr': peer_addr,
                            'is_ipv6': is_ipv6,
                        })

    def bfd_udp_session_dump(self):
        return self.api(self.papi.bfd_udp_session_dump, {})

    def bfd_session_set_flags(self, bs_idx, admin_up_down):
        return self.api(self.papi.bfd_session_set_flags, {
            'bs_index': bs_idx,
            'admin_up_down': admin_up_down,
        })

    def want_bfd_events(self, enable_disable=1):
        return self.api(self.papi.want_bfd_events, {
            'enable_disable': enable_disable,
            'pid': os.getpid(),
        })

    def classify_add_del_table(
            self,
            is_add,
            mask,
            match_n_vectors=1,
            table_index=0xFFFFFFFF,
            nbuckets=2,
            memory_size=2097152,
            skip_n_vectors=0,
            next_table_index=0xFFFFFFFF,
            miss_next_index=0xFFFFFFFF,
            current_data_flag=0,
            current_data_offset=0):
        """
        :param is_add:
        :param mask:
        :param match_n_vectors (Default value = 1):
        :param table_index (Default value = 0xFFFFFFFF)
        :param nbuckets:  (Default value = 2)
        :param memory_size:  (Default value = 2097152)
        :param skip_n_vectors:  (Default value = 0)
        :param next_table_index:  (Default value = 0xFFFFFFFF)
        :param miss_next_index:  (Default value = 0xFFFFFFFF)
        :param current_data_flag:  (Default value = 0)
        :param current_data_offset:  (Default value = 0)
        """

        return self.api(
            self.papi.classify_add_del_table,
            {'is_add': is_add,
             'table_index': table_index,
             'nbuckets': nbuckets,
             'memory_size': memory_size,
             'skip_n_vectors': skip_n_vectors,
             'match_n_vectors': match_n_vectors,
             'next_table_index': next_table_index,
             'miss_next_index': miss_next_index,
             'current_data_flag': current_data_flag,
             'current_data_offset': current_data_offset,
             'mask': mask})

    def classify_add_del_session(
            self,
            is_add,
            table_index,
            match,
            opaque_index=0xFFFFFFFF,
            hit_next_index=0xFFFFFFFF,
            advance=0,
            action=0,
            metadata=0):
        """
        :param is_add:
        :param table_index:
        :param match:
        :param opaque_index:  (Default value = 0xFFFFFFFF)
        :param hit_next_index:  (Default value = 0xFFFFFFFF)
        :param advance:  (Default value = 0)
        :param action:  (Default value = 0)
        :param metadata:  (Default value = 0)
        """

        return self.api(
            self.papi.classify_add_del_session,
            {'is_add': is_add,
             'table_index': table_index,
             'hit_next_index': hit_next_index,
             'opaque_index': opaque_index,
             'advance': advance,
             'action': action,
             'metadata': metadata,
             'match': match})

    def input_acl_set_interface(
            self,
            is_add,
            sw_if_index,
            ip4_table_index=0xFFFFFFFF,
            ip6_table_index=0xFFFFFFFF,
            l2_table_index=0xFFFFFFFF):
        """
        :param is_add:
        :param sw_if_index:
        :param ip4_table_index:  (Default value = 0xFFFFFFFF)
        :param ip6_table_index:  (Default value = 0xFFFFFFFF)
        :param l2_table_index:  (Default value = 0xFFFFFFFF)
        """

        return self.api(
            self.papi.input_acl_set_interface,
            {'sw_if_index': sw_if_index,
             'ip4_table_index': ip4_table_index,
             'ip6_table_index': ip6_table_index,
             'l2_table_index': l2_table_index,
             'is_add': is_add})

    def set_ipfix_exporter(
            self,
            collector_address,
            src_address,
            path_mtu,
            template_interval,
            vrf_id=0,
            collector_port=4739,
            udp_checksum=0):
        return self.api(
            self.papi.set_ipfix_exporter,
            {
                'collector_address': collector_address,
                'collector_port': collector_port,
                'src_address': src_address,
                'vrf_id': vrf_id,
                'path_mtu': path_mtu,
                'template_interval': template_interval,
                'udp_checksum': udp_checksum,
            })

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