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#!/usr/bin/env python
""" Vpp QUIC tests """

import unittest
import os
import subprocess
import signal
from framework import VppTestCase, VppTestRunner, running_extended_tests, \
    Worker
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath
from threading import Event


class QUICAppWorker(Worker):
    """ QUIC Test Application Worker """
    process = None

    def __init__(self, build_dir, appname, args, logger, env={}, event=None):
        app = "%s/vpp/bin/%s" % (build_dir, appname)
        self.args = [app] + args
        self.event = event
        super(QUICAppWorker, self).__init__(self.args, logger, env)

    def run(self):
        super(QUICAppWorker, self).run()
        if self.event:
            self.event.set()

    def teardown(self, logger, timeout):
        if self.process is None:
            return False
        try:
            logger.debug("Killing worker process (pid %d)" % self.process.pid)
            os.killpg(os.getpgid(self.process.pid), signal.SIGKILL)
            self.join(timeout)
        except OSError as e:
            logger.debug("Couldn't kill worker process")
            return True
        return False


class QUICTestCase(VppTestCase):
    """ QUIC Test Case """

    def setUp(self):
        super(QUICTestCase, self).setUp()
        var = "VPP_BUILD_DIR"
        self.build_dir = os.getenv(var, None)
        if self.build_dir is None:
            raise Exception("Environment variable `%s' not set" % var)
        self.vppDebug = 'vpp_debug' in self.build_dir
        self.timeout = 20
        self.vapi.session_enable_disable(is_enabled=1)
        self.pre_test_sleep = 0.3
        self.post_test_sleep = 0.2

        self.create_loopback_interfaces(2)
        self.uri = "quic://%s/1234" % self.loop0.local_ip4
        table_id = 1
        for i in self.lo_interfaces:
            i.admin_up()

            if table_id != 0:
                tbl = VppIpTable(self, table_id)
                tbl.add_vpp_config()

            i.set_table_ip4(table_id)
            i.config_ip4()
            table_id += 1

        # Configure namespaces
        self.vapi.app_namespace_add_del(namespace_id=b"server",
                                        sw_if_index=self.loop0.sw_if_index)
        self.vapi.app_namespace_add_del(namespace_id=b"client",
                                        sw_if_index=self.loop1.sw_if_index)

        # Add inter-table routes
        self.ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
                                 [VppRoutePath("0.0.0.0",
                                               0xffffffff,
                                               nh_table_id=2)], table_id=1)
        self.ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
                                 [VppRoutePath("0.0.0.0",
                                               0xffffffff,
                                               nh_table_id=1)], table_id=2)
        self.ip_t01.add_vpp_config()
        self.ip_t10.add_vpp_config()
        self.logger.debug(self.vapi.cli("show ip fib"))

    def tearDown(self):
        self.vapi.session_enable_disable(is_enabled=0)
        # Delete inter-table routes
        self.ip_t01.remove_vpp_config()
        self.ip_t10.remove_vpp_config()

        for i in self.lo_interfaces:
            i.unconfig_ip4()
            i.set_table_ip4(0)
            i.admin_down()
        super(QUICTestCase, self).tearDown()


class QUICEchoInternalTestCase(QUICTestCase):
    """QUIC Echo Internal Test Case"""

    def setUp(self):
        super(QUICEchoInternalTestCase, self).setUp()
        self.client_args = "uri %s fifo-size 64 test-bytes appns client" \
            % self.uri
        self.server_args = "uri %s fifo-size 64 appns server" % self.uri

    def server(self, *args):
        error = self.vapi.cli(
            "test echo server %s %s" %
            (self.server_args, ' '.join(args)))
        if error:
            self.logger.critical(error)
            self.assertNotIn("failed", error)

    def client(self, *args):
        error = self.vapi.cli(
            "test echo client %s %s" %
            (self.client_args, ' '.join(args)))
        if error:
            self.logger.critical(error)
            self.assertNotIn("failed", error)


class QUICEchoInternalTransferTestCase(QUICEchoInternalTestCase):
    """QUIC Echo Internal Transfer Test Case"""
    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_quic_internal_transfer(self):
        self.server()
        self.client("no-output", "mbytes", "10")


class QUICEchoInternalSerialTestCase(QUICEchoInternalTestCase):
    """QUIC Echo Internal Serial Transfer Test Case"""
    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_quic_serial_internal_transfer(self):
        self.server()
        self.client("no-output", "mbytes", "10")
        self.client("no-output", "mbytes", "10")
        self.client("no-output", "mbytes", "10")
        self.client("no-output", "mbytes", "10")
        self.client("no-output", "mbytes", "10")


class QUICEchoInternalMStreamTestCase(QUICEchoInternalTestCase):
    """QUIC Echo Internal MultiStream Test Case"""
    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_quic_internal_multistream_transfer(self):
        self.server()
        self.client("nclients", "10", "mbytes", "1", "no-output")


class QUICEchoExternalTestCase(QUICTestCase):
    extra_vpp_punt_config = ["session", "{", "evt_qs_memfd_seg", "}"]
    quic_setup = "default"

    def setUp(self):
        super(QUICEchoExternalTestCase, self).setUp()
        common_args = [
            "uri",
            self.uri,
            "fifo-size",
            "64",
            "test-bytes:assert",
            "socket-name",
            self.api_sock]
        self.server_echo_test_args = common_args + \
            ["server", "appns", "server", "quic-setup", self.quic_setup]
        self.client_echo_test_args = common_args + \
            ["client", "appns", "client", "quic-setup", self.quic_setup]
        self.event = Event()

    def server(self, *args):
        _args = self.server_echo_test_args + list(args)
        self.worker_server = QUICAppWorker(
            self.build_dir,
            "quic_echo",
            _args,
            self.logger,
            event=self.event)
        self.worker_server.start()
        self.sleep(self.pre_test_sleep)

    def client(self, *args):
        _args = self.client_echo_test_args + list(args)
        # self.client_echo_test_args += "use-svm-api"
        self.worker_client = QUICAppWorker(
            self.build_dir,
            "quic_echo",
            _args,
            self.logger,
            event=self.event)
        self.worker_client.start()
        self.event.wait(self.timeout)
        self.sleep(self.post_test_sleep)

    def validate_external_test_results(self):
        self.logger.info(
            "Client worker result is `%s'" %
            self.worker_client.result)
        server_result = self.worker_server.result
        client_result = self.worker_client.result
        server_kill_error = False
        if self.worker_server.result is None:
            server_kill_error = self.worker_server.teardown(
                self.logger, self.timeout)
        if self.worker_client.result is None:
            self.worker_client.teardown(self.logger, self.timeout)
        self.assertIsNone(server_result, "Wrong server worker return code")
        self.assertIsNotNone(
            client_result,
            "Timeout! Client worker did not finish in %ss" %
            self.timeout)
        self.assertEqual(client_result, 0, "Wrong client worker return code")
        self.assertFalse(server_kill_error, "Server kill errored")


class QUICEchoExternalTransferTestCase(QUICEchoExternalTestCase):
    """QUIC Echo External Transfer Test Case"""
    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_quic_external_transfer(self):
        self.server()
        self.client()
        self.validate_external_test_results()


class QUICEchoExternalServerStreamTestCase(QUICEchoExternalTestCase):
    """QUIC Echo External Transfer Server Stream Test Case"""
    quic_setup = "serverstream"

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_quic_external_transfer_server_stream(self):
        self.server("nclients", "1/1", "send", "1Kb", "recv", "0")
        self.client("nclients", "1/1", "send", "0", "recv", "1Kb")
        self.validate_external_test_results()


class QUICEchoExternalServerStreamWorkersTestCase(QUICEchoExternalTestCase):
    """QUIC Echo External Transfer Server Stream MultiWorker Test Case"""
    quic_setup = "serverstream"

    @unittest.skipUnless(running_extended_tests, "part of extended tests")
    def test_quic_external_transfer_server_stream_multi_workers(self):
        self.server("nclients", "4/4", "send", "1Kb", "recv", "0")
        self.client("nclients", "4/4", "send", "0", "recv", "1Kb")
        self.validate_external_test_results()


if __name__ == '__main__':
    unittest.main(testRunner=VppTestRunner)
s="n">gt->gt_tuns, pos); if (GBP_VXLAN_TUN_L2 == vxr->vxr_layer) { gbp_itf_set_l2_output_feature (vxr->vxr_itf, vxr->vxr_sw_if_index, L2OUTPUT_FEAT_NONE); gbp_itf_set_l2_input_feature (vxr->vxr_itf, vxr->vxr_sw_if_index, L2INPUT_FEAT_NONE); gbp_itf_unlock (vxr->vxr_itf); } else { fib_protocol_t fproto; FOR_EACH_FIB_IP_PROTOCOL (fproto) ip_table_bind (fproto, vxr->vxr_sw_if_index, 0, 0); gbp_learn_disable (vxr->vxr_sw_if_index, GBP_LEARN_MODE_L3); } vnet_vxlan_gbp_tunnel_del (vxr->vxr_sw_if_index); pool_put (vxlan_tunnel_ref_pool, vxr); } void vxlan_gbp_tunnel_unlock (u32 sw_if_index) { vxlan_tunnel_ref_t *vxr; index_t vxri; vxri = vxlan_tunnel_ref_db[sw_if_index]; ASSERT (vxri != INDEX_INVALID); vxr = vxlan_tunnel_ref_get (vxri); vxr->vxr_locks--; if (0 == vxr->vxr_locks) { gdb_vxlan_dep_del (vxri); } } void vxlan_gbp_tunnel_lock (u32 sw_if_index) { vxlan_tunnel_ref_t *vxr; index_t vxri; vxri = vxlan_tunnel_ref_db[sw_if_index]; ASSERT (vxri != INDEX_INVALID); vxr = vxlan_tunnel_ref_get (vxri); vxr->vxr_locks++; } void gbp_vxlan_walk (gbp_vxlan_cb_t cb, void *ctx) { gbp_vxlan_tunnel_t *gt; /* *INDENT-OFF* */ pool_foreach (gt, gbp_vxlan_tunnel_pool, ({ if (WALK_CONTINUE != cb(gt, ctx)) break; })); /* *INDENT-ON* */ } static walk_rc_t gbp_vxlan_tunnel_show_one (gbp_vxlan_tunnel_t * gt, void *ctx) { vlib_cli_output (ctx, "%U", format_gbp_vxlan_tunnel, gt - gbp_vxlan_tunnel_pool); return (WALK_CONTINUE); } static u8 * format_gbp_vxlan_tunnel_name (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); return format (s, "gbp-vxlan-%d", dev_instance); } u8 * format_gbp_vxlan_tunnel_layer (u8 * s, va_list * args) { gbp_vxlan_tunnel_layer_t gl = va_arg (*args, gbp_vxlan_tunnel_layer_t); s = format (s, "%s", gbp_vxlan_tunnel_layer_strings[gl]); return (s); } u8 * format_gbp_vxlan_tunnel (u8 * s, va_list * args) { u32 dev_instance = va_arg (*args, u32); CLIB_UNUSED (int verbose) = va_arg (*args, int); gbp_vxlan_tunnel_t *gt = gbp_vxlan_tunnel_get (dev_instance); index_t *vxri; s = format (s, "GBP VXLAN tunnel: hw:%d sw:%d vni:%d %U", gt->gt_hw_if_index, gt->gt_sw_if_index, gt->gt_vni, format_gbp_vxlan_tunnel_layer, gt->gt_layer); if (GBP_VXLAN_TUN_L2 == gt->gt_layer) s = format (s, " BD:%d bd-index:%d", gt->gt_bd_rd_id, gt->gt_bd_index); else s = format (s, " RD:%d fib-index:[%d,%d]", gt->gt_bd_rd_id, gt->gt_fib_index[FIB_PROTOCOL_IP4], gt->gt_fib_index[FIB_PROTOCOL_IP6]); s = format (s, " children:["); vec_foreach (vxri, gt->gt_tuns) { s = format (s, "%U, ", format_vxlan_tunnel_ref, *vxri); } s = format (s, "]"); return s; } typedef struct gbp_vxlan_tx_trace_t_ { u32 vni; } gbp_vxlan_tx_trace_t; u8 * format_gbp_vxlan_tx_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); gbp_vxlan_tx_trace_t *t = va_arg (*args, gbp_vxlan_tx_trace_t *); s = format (s, "GBP-VXLAN: vni:%d", t->vni); return (s); } clib_error_t * gbp_vxlan_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags) { vnet_hw_interface_t *hi; u32 ti; hi = vnet_get_hw_interface (vnm, hw_if_index); if (NULL == gbp_vxlan_tunnel_db || hi->sw_if_index >= vec_len (gbp_vxlan_tunnel_db)) return (NULL); ti = gbp_vxlan_tunnel_db[hi->sw_if_index]; if (~0 == ti) /* not one of ours */ return (NULL); if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) vnet_hw_interface_set_flags (vnm, hw_if_index, VNET_HW_INTERFACE_FLAG_LINK_UP); else vnet_hw_interface_set_flags (vnm, hw_if_index, 0); return (NULL); } static uword gbp_vxlan_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { clib_warning ("you shouldn't be here, leaking buffers..."); return frame->n_vectors; } /* *INDENT-OFF* */ VNET_DEVICE_CLASS (gbp_vxlan_device_class) = { .name = "GBP VXLAN tunnel-template", .format_device_name = format_gbp_vxlan_tunnel_name, .format_device = format_gbp_vxlan_tunnel, .format_tx_trace = format_gbp_vxlan_tx_trace, .admin_up_down_function = gbp_vxlan_interface_admin_up_down, .tx_function = gbp_vxlan_interface_tx, }; VNET_HW_INTERFACE_CLASS (gbp_vxlan_hw_interface_class) = { .name = "GBP-VXLAN", .flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P, }; /* *INDENT-ON* */ int gbp_vxlan_tunnel_add (u32 vni, gbp_vxlan_tunnel_layer_t layer, u32 bd_rd_id, const ip4_address_t * src, u32 * sw_if_indexp) { gbp_vxlan_tunnel_t *gt; index_t gti; uword *p; int rv; rv = 0; p = hash_get (gv_db, vni); GBP_VXLAN_TUN_DBG ("add: %d %d %d", vni, layer, bd_rd_id); if (NULL == p) { vnet_sw_interface_t *si; vnet_hw_interface_t *hi; index_t gbi, grdi; vnet_main_t *vnm; gbi = grdi = INDEX_INVALID; if (layer == GBP_VXLAN_TUN_L2) { gbi = gbp_bridge_domain_find_and_lock (bd_rd_id); if (INDEX_INVALID == gbi) { return (VNET_API_ERROR_BD_NOT_MODIFIABLE); } } else { grdi = gbp_route_domain_find_and_lock (bd_rd_id); if (INDEX_INVALID == grdi) { return (VNET_API_ERROR_NO_SUCH_FIB); } } vnm = vnet_get_main (); pool_get (gbp_vxlan_tunnel_pool, gt); gti = gt - gbp_vxlan_tunnel_pool; gt->gt_vni = vni; gt->gt_layer = layer; gt->gt_bd_rd_id = bd_rd_id; gt->gt_src.ip4.as_u32 = src->as_u32; gt->gt_hw_if_index = vnet_register_interface (vnm, gbp_vxlan_device_class.index, gti, gbp_vxlan_hw_interface_class.index, gti); hi = vnet_get_hw_interface (vnm, gt->gt_hw_if_index); gt->gt_sw_if_index = hi->sw_if_index; /* don't flood packets in a BD to these interfaces */ si = vnet_get_sw_interface (vnm, gt->gt_sw_if_index); si->flood_class = VNET_FLOOD_CLASS_NO_FLOOD; if (layer == GBP_VXLAN_TUN_L2) { gbp_bridge_domain_t *gb; gb = gbp_bridge_domain_get (gbi); gt->gt_gbd = gbi; gt->gt_bd_index = gb->gb_bd_index; gb->gb_vni = gti; /* set it up as a GBP interface */ gt->gt_itf = gbp_itf_add_and_lock (gt->gt_sw_if_index, gt->gt_bd_index); gbp_learn_enable (gt->gt_sw_if_index, GBP_LEARN_MODE_L2); } else { gbp_route_domain_t *grd; fib_protocol_t fproto; grd = gbp_route_domain_get (grdi); gt->gt_grd = grdi; grd->grd_vni_sw_if_index = gt->gt_sw_if_index; gbp_learn_enable (gt->gt_sw_if_index, GBP_LEARN_MODE_L3); ip4_sw_interface_enable_disable (gt->gt_sw_if_index, 1); ip6_sw_interface_enable_disable (gt->gt_sw_if_index, 1); FOR_EACH_FIB_IP_PROTOCOL (fproto) { gt->gt_fib_index[fproto] = grd->grd_fib_index[fproto]; ip_table_bind (fproto, gt->gt_sw_if_index, grd->grd_table_id[fproto], 1); } } /* * save the tunnel by VNI and by sw_if_index */ hash_set (gv_db, vni, gti); vec_validate_init_empty (gbp_vxlan_tunnel_db, gt->gt_sw_if_index, INDEX_INVALID); gbp_vxlan_tunnel_db[gt->gt_sw_if_index] = gti; if (sw_if_indexp) *sw_if_indexp = gt->gt_sw_if_index; vxlan_gbp_register_udp_ports (); } else { gti = p[0]; rv = VNET_API_ERROR_IF_ALREADY_EXISTS; } GBP_VXLAN_TUN_DBG ("add: %U", format_gbp_vxlan_tunnel, gti); return (rv); } int gbp_vxlan_tunnel_del (u32 vni) { gbp_vxlan_tunnel_t *gt; uword *p; p = hash_get (gv_db, vni); if (NULL != p) { vnet_main_t *vnm; vnm = vnet_get_main (); gt = gbp_vxlan_tunnel_get (p[0]); vxlan_gbp_unregister_udp_ports (); GBP_VXLAN_TUN_DBG ("del: %U", format_gbp_vxlan_tunnel, gt - gbp_vxlan_tunnel_pool); gbp_endpoint_flush (GBP_ENDPOINT_SRC_DP, gt->gt_sw_if_index); ASSERT (0 == vec_len (gt->gt_tuns)); vec_free (gt->gt_tuns); if (GBP_VXLAN_TUN_L2 == gt->gt_layer) { gbp_learn_disable (gt->gt_sw_if_index, GBP_LEARN_MODE_L2); gbp_itf_unlock (gt->gt_itf); gbp_bridge_domain_unlock (gt->gt_gbd); } else { fib_protocol_t fproto; FOR_EACH_FIB_IP_PROTOCOL (fproto) ip_table_bind (fproto, gt->gt_sw_if_index, 0, 0); ip4_sw_interface_enable_disable (gt->gt_sw_if_index, 0); ip6_sw_interface_enable_disable (gt->gt_sw_if_index, 0); gbp_learn_disable (gt->gt_sw_if_index, GBP_LEARN_MODE_L3); gbp_route_domain_unlock (gt->gt_grd); } vnet_sw_interface_set_flags (vnm, gt->gt_sw_if_index, 0); vnet_delete_hw_interface (vnm, gt->gt_hw_if_index); hash_unset (gv_db, vni); gbp_vxlan_tunnel_db[gt->gt_sw_if_index] = INDEX_INVALID; pool_put (gbp_vxlan_tunnel_pool, gt); } else return VNET_API_ERROR_NO_SUCH_ENTRY; return (0); } static clib_error_t * gbp_vxlan_show (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { gbp_vxlan_walk (gbp_vxlan_tunnel_show_one, vm); return (NULL); } /*? * Show Group Based Policy VXLAN tunnels * * @cliexpar * @cliexstart{show gbp vxlan} * @cliexend ?*/ /* *INDENT-OFF* */ VLIB_CLI_COMMAND (gbp_vxlan_show_node, static) = { .path = "show gbp vxlan", .short_help = "show gbp vxlan\n", .function = gbp_vxlan_show, }; /* *INDENT-ON* */ static clib_error_t * gbp_vxlan_init (vlib_main_t * vm) { vxlan_gbp_main_t *vxm = &vxlan_gbp_main; clib_error_t *error; gt_logger = vlib_log_register_class ("gbp", "tun"); if ((error = vlib_call_init_function (vm, punt_init))) return error; if ((error = vlib_call_init_function (vm, vxlan_gbp_init))) return error; punt_hdl = vlib_punt_client_register ("gbp-vxlan"); vlib_punt_register (punt_hdl, vxm->punt_no_such_tunnel[FIB_PROTOCOL_IP4], "gbp-vxlan4"); return (error); } VLIB_INIT_FUNCTION (gbp_vxlan_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */