12 files changed, 421 insertions, 0 deletions
diff --git a/tests/topotests/bgp_lu_topo2/R1/bgpd.conf b/tests/topotests/bgp_lu_topo2/R1/bgpd.conf
new file mode 100644
index 0000000..9fe4026
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R1/bgpd.conf
@@ -0,0 +1,29 @@
+!
+no log unique-id
+!
+! debug bgp labelpool
+! debug bgp zebra
+!
+router bgp 1
+ bgp router-id 10.0.0.1
+ timers bgp 3 9
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ neighbor 10.0.0.2 remote-as 2
+! neighbor 10.0.0.2 solo
+ neighbor 10.0.0.2 timers connect 10
+ neighbor 10.0.4.4 remote-as 4
+! neighbor 10.0.4.4 solo
+ neighbor 10.0.4.4 timers connect 10
+!
+ address-family ipv4 unicast
+  no neighbor 10.0.0.2 activate
+  no neighbor 10.0.4.4 activate
+  redistribute connected
+ exit-address-family
+ !
+ address-family ipv4 labeled-unicast
+  neighbor 10.0.0.2 activate
+  neighbor 10.0.4.4 activate
+ exit-address-family
+!
diff --git a/tests/topotests/bgp_lu_topo2/R1/labelpool.summ.json b/tests/topotests/bgp_lu_topo2/R1/labelpool.summ.json
new file mode 100644
index 0000000..faeaa3e
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R1/labelpool.summ.json
@@ -0,0 +1,6 @@
+{
+  "ledger":51,
+  "inUse":51,
+  "requests":0,
+  "labelChunks":1
+}
diff --git a/tests/topotests/bgp_lu_topo2/R1/zebra.conf b/tests/topotests/bgp_lu_topo2/R1/zebra.conf
new file mode 100644
index 0000000..64c34a3
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R1/zebra.conf
@@ -0,0 +1,13 @@
+!
+no log unique-id
+!
+! debug zebra events
+! debug zebra rib det
+! debug zebra dplane
+! debug zebra mpls
+!
+interface R1-eth0
+ ip address 10.0.0.1/24
+!
+interface R1-eth1
+ ip address 10.0.4.1/24
diff --git a/tests/topotests/bgp_lu_topo2/R2/bgpd.conf b/tests/topotests/bgp_lu_topo2/R2/bgpd.conf
new file mode 100644
index 0000000..917060c
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R2/bgpd.conf
@@ -0,0 +1,27 @@
+!
+no log unique-id
+!
+! debug bgp labelpool
+! debug bgp zebra
+!
+router bgp 2
+ bgp router-id 10.0.0.2
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ timers bgp 3 9
+ neighbor 10.0.0.1 remote-as 1
+ neighbor 10.0.0.1 timers connect 10
+ neighbor 10.0.1.3 remote-as 2
+ neighbor 10.0.1.3 update-source 10.0.1.2
+ neighbor 10.0.1.3 timers connect 10
+!
+ address-family ipv4 unicast
+  network 10.0.0.0/24
+  neighbor 10.0.1.3 activate
+  no neighbor 10.0.0.1 activate
+ exit-address-family
+ !
+ address-family ipv4 labeled-unicast
+  neighbor 10.0.0.1 activate
+ exit-address-family
+!
diff --git a/tests/topotests/bgp_lu_topo2/R2/labelpool.summ.json b/tests/topotests/bgp_lu_topo2/R2/labelpool.summ.json
new file mode 100644
index 0000000..5f9d8e6
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R2/labelpool.summ.json
@@ -0,0 +1,6 @@
+{
+  "ledger":1,
+  "inUse":1,
+  "requests":0,
+  "labelChunks":1
+}
diff --git a/tests/topotests/bgp_lu_topo2/R2/zebra.conf b/tests/topotests/bgp_lu_topo2/R2/zebra.conf
new file mode 100644
index 0000000..f465914
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R2/zebra.conf
@@ -0,0 +1,14 @@
+!
+no log unique-id
+!
+! debug zebra events
+! debug zebra dplane
+! debug zebra mpls
+! debug zebra rib det
+!
+interface R2-eth0
+ ip address 10.0.0.2/24
+!
+interface R2-eth1
+ ip address 10.0.1.2/24
+!
+\ No newline at end of file
diff --git a/tests/topotests/bgp_lu_topo2/R3/bgpd.conf b/tests/topotests/bgp_lu_topo2/R3/bgpd.conf
new file mode 100644
index 0000000..6443445
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R3/bgpd.conf
@@ -0,0 +1,70 @@
+log file /tmp/bgpd.log
+no log unique-id
+!
+!
+! debug bgp updates
+!
+router bgp 2
+ bgp router-id 10.0.1.3
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ timers bgp 3 9
+ neighbor 10.0.1.2 remote-as 2
+ neighbor 10.0.1.2 timers connect 10
+ !
+ address-family ipv4 unicast
+  neighbor 10.0.1.2 activate
+  network 10.0.1.0/24
+  network 11.0.0.1/32
+  network 11.0.0.2/32
+  network 11.0.0.3/32
+  network 11.0.0.4/32
+  network 11.0.0.5/32
+  network 11.0.0.6/32
+  network 11.0.0.7/32
+  network 11.0.0.8/32
+  network 11.0.0.9/32
+  network 11.0.0.10/32
+  network 11.0.0.11/32
+  network 11.0.0.12/32
+  network 11.0.0.13/32
+  network 11.0.0.14/32
+  network 11.0.0.15/32
+  network 11.0.0.16/32
+  network 11.0.0.17/32
+  network 11.0.0.18/32
+  network 11.0.0.19/32
+  network 11.0.0.20/32
+  network 11.0.0.21/32
+  network 11.0.0.22/32
+  network 11.0.0.23/32
+  network 11.0.0.24/32
+  network 11.0.0.25/32
+  network 11.0.0.26/32
+  network 11.0.0.27/32
+  network 11.0.0.28/32
+  network 11.0.0.29/32
+  network 11.0.0.30/32
+  network 11.0.0.31/32
+  network 11.0.0.32/32
+  network 11.0.0.33/32
+  network 11.0.0.34/32
+  network 11.0.0.35/32
+  network 11.0.0.36/32
+  network 11.0.0.37/32
+  network 11.0.0.38/32
+  network 11.0.0.39/32
+  network 11.0.0.40/32
+  network 11.0.0.41/32
+  network 11.0.0.42/32
+  network 11.0.0.43/32
+  network 11.0.0.44/32
+  network 11.0.0.45/32
+  network 11.0.0.46/32
+  network 11.0.0.47/32
+  network 11.0.0.48/32
+  network 11.0.0.49/32
+  network 11.0.0.50/32
+ exit-address-family
+ !
+!
diff --git a/tests/topotests/bgp_lu_topo2/R3/staticd.conf b/tests/topotests/bgp_lu_topo2/R3/staticd.conf
new file mode 100644
index 0000000..867fc5a
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R3/staticd.conf
@@ -0,0 +1,5 @@
+log file /tmp/staticd.log
+no log unique-id
+!
+!
+ip route 10.0.4.0/24 10.0.1.2
diff --git a/tests/topotests/bgp_lu_topo2/R3/zebra.conf b/tests/topotests/bgp_lu_topo2/R3/zebra.conf
new file mode 100644
index 0000000..dd24deb
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R3/zebra.conf
@@ -0,0 +1,11 @@
+log file /tmp/zebra.log
+no log unique-id
+!
+!
+! debug zebra events
+! debug zebra packet detail
+! debug zebra mpls
+!
+interface R3-eth0
+ ip address 10.0.1.3/24
+!
diff --git a/tests/topotests/bgp_lu_topo2/R4/bgpd.conf b/tests/topotests/bgp_lu_topo2/R4/bgpd.conf
new file mode 100644
index 0000000..45c81fb
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R4/bgpd.conf
@@ -0,0 +1,23 @@
+!
+no log unique-id
+!
+! debug bgp labelpool
+! debug bgp zebra
+!
+router bgp 4
+ bgp router-id 10.0.4.4
+ timers bgp 3 9
+ no bgp ebgp-requires-policy
+ no bgp network import-check
+ neighbor 10.0.4.1 remote-as 1
+ neighbor 10.0.4.1 solo
+ neighbor 10.0.4.1 timers connect 10
+!
+ address-family ipv4 unicast
+   no neighbor 10.0.4.1 activate
+ exit-address-family
+ !
+ address-family ipv4 labeled-unicast
+  neighbor 10.0.4.1 activate
+ exit-address-family
+!
diff --git a/tests/topotests/bgp_lu_topo2/R4/zebra.conf b/tests/topotests/bgp_lu_topo2/R4/zebra.conf
new file mode 100644
index 0000000..53ffe51
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/R4/zebra.conf
@@ -0,0 +1,9 @@
+no log unique-id
+!
+! debug zebra events
+! debug zebra dplane
+! debug zebra mpls
+! debug zebra rib det
+!
+interface R4-eth0
+ ip address 10.0.4.4/24
diff --git a/tests/topotests/bgp_lu_topo2/test_bgp_lu2.py b/tests/topotests/bgp_lu_topo2/test_bgp_lu2.py
new file mode 100644
index 0000000..13e6582
--- /dev/null
+++ b/tests/topotests/bgp_lu_topo2/test_bgp_lu2.py
@@ -0,0 +1,208 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: ISC
+#
+# test_bgp_lu2.py
+#
+# Part of FRR/NetDEF Topology Tests
+#
+# Copyright (c) 2020 by Volta Networks
+# Copyright (c) 2021 by Nvidia, Inc.
+#
+
+"""
+test_bgp_lu2.py: Test BGP LU label allocation
+"""
+
+import os
+import sys
+import json
+from functools import partial
+import pytest
+
+# Save the Current Working Directory to find configuration files.
+CWD = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(CWD, "../"))
+
+# pylint: disable=C0413
+# Import topogen and topotest helpers
+from lib import topotest
+from lib.topogen import Topogen, TopoRouter, get_topogen
+from lib.topolog import logger
+
+# Required to instantiate the topology builder class.
+
+pytestmark = [pytest.mark.bgpd]
+
+#
+# Basic scenario for BGP-LU. Nodes are directly connected.
+# Node 3 is advertising routes to 2, which advertises them
+# as BGP-LU to 1; this way we get routes with actual labels, as
+# opposed to implicit-null routes in the 2-node case.
+#
+# R2 is an LER, with MPLS towards R1, and IP towards R3. R1 is an LSR, with
+# MPLS on both sides.
+#
+#
+#    AS4     BGP-LU      AS1       BGP-LU       AS2         iBGP        AS2
+#  +-----+             +-----+                +-----+                 +-----+
+#  |     |.4         .1|     |.1            .2|     |.2             .3|     |
+#  |  4  +-------------+  1  +----------------+  2  +-----------------+  3  |
+#  |     | 10.0.4.0/24 |     |   10.0.0.0/24  |     |   10.0.1.0/24   |     |
+#  +-----+             +-----+                +-----+                 +-----+
+#
+#
+
+
+def build_topo(tgen):
+    "Build function"
+
+    # This function's only purpose is to define allocation and relationship
+    # between routers, switches and hosts.
+    #
+    #
+    # Create routers
+    tgen.add_router("R1")
+    tgen.add_router("R2")
+    tgen.add_router("R3")
+    tgen.add_router("R4")
+
+    # R1-R2
+    switch = tgen.add_switch("s1")
+    switch.add_link(tgen.gears["R1"])
+    switch.add_link(tgen.gears["R2"])
+
+    # R2-R3
+    switch = tgen.add_switch("s2")
+    switch.add_link(tgen.gears["R2"])
+    switch.add_link(tgen.gears["R3"])
+
+    # R1-R4
+    switch = tgen.add_switch("s3")
+    switch.add_link(tgen.gears["R1"])
+    switch.add_link(tgen.gears["R4"])
+
+
+def setup_module(mod):
+    "Sets up the pytest environment"
+    # This function initiates the topology build with Topogen...
+    tgen = Topogen(build_topo, mod.__name__)
+
+    # Skip if no mpls support
+    if not tgen.hasmpls:
+        logger.info("MPLS is not available, skipping test")
+        pytest.skip("MPLS is not available, skipping")
+        return
+
+    # ... and here it calls Mininet initialization functions.
+    tgen.start_topology()
+
+    # This is a sample of configuration loading.
+    router_list = tgen.routers()
+
+    # Enable mpls input for routers, so we can ping
+    sval = "net.mpls.conf.{}.input"
+    topotest.sysctl_assure(router_list["R2"], sval.format("R2-eth0"), 1)
+    topotest.sysctl_assure(router_list["R1"], sval.format("R1-eth0"), 1)
+    topotest.sysctl_assure(router_list["R1"], sval.format("R1-eth1"), 1)
+    topotest.sysctl_assure(router_list["R4"], sval.format("R4-eth0"), 1)
+
+    # For all registered routers, load the zebra configuration file
+    for rname, router in router_list.items():
+        router.load_config(
+            TopoRouter.RD_ZEBRA, os.path.join(CWD, "{}/zebra.conf".format(rname))
+        )
+        router.load_config(
+            TopoRouter.RD_BGP, os.path.join(CWD, "{}/bgpd.conf".format(rname))
+        )
+
+        # Have static config for R3 too
+        if router == router_list["R3"]:
+            router.load_config(
+                TopoRouter.RD_STATIC, os.path.join(CWD, "{}/staticd.conf".format(rname))
+            )
+
+    # After loading the configurations, this function loads configured daemons.
+    tgen.start_router()
+
+
+def teardown_module(mod):
+    "Teardown the pytest environment"
+    tgen = get_topogen()
+
+    # This function tears down the whole topology.
+    tgen.stop_topology()
+
+
+def check_labelpool(router):
+    json_file = "{}/{}/labelpool.summ.json".format(CWD, router.name)
+    expected = json.loads(open(json_file).read())
+
+    test_func = partial(
+        topotest.router_json_cmp, router, "show bgp labelpool summary json", expected
+    )
+    _, result = topotest.run_and_expect(test_func, None, count=20, wait=1)
+    assertmsg = '"{}" JSON output mismatches - Did not converge'.format(router.name)
+    assert result is None, assertmsg
+
+
+def test_converge_bgplu():
+    "Wait for protocol convergence"
+
+    tgen = get_topogen()
+    # Don't run this test if we have any failure.
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    # TODO -- enable for debugging
+    # tgen.mininet_cli()
+
+    r1 = tgen.gears["R1"]
+    r2 = tgen.gears["R2"]
+
+    check_labelpool(r1)
+    check_labelpool(r2)
+
+
+def test_ping():
+    "Simple ping tests"
+
+    tgen = get_topogen()
+
+    # Don't run this test if we have any failure.
+    if tgen.routers_have_failure():
+        pytest.skip(tgen.errors)
+
+    #
+    logger.info("Ping from R2 to R3")
+    router = tgen.gears["R2"]
+    output = router.run("ping -c 4 -w 4 {}".format("10.0.1.3"))
+    assert " 0% packet loss" in output, "Ping R2->R3 FAILED"
+    logger.info("Ping from R2 to R3 ... success")
+
+    #
+    logger.info("Ping from R4 to R2")
+    router = tgen.gears["R4"]
+    output = router.run("ping -c 4 -w 4 {}".format("10.0.0.2"))
+    assert " 0% packet loss" in output, "Ping R4->R2 FAILED"
+    logger.info("Ping from R4 to R2 ... success")
+
+    #
+    logger.info("Ping from R4 to R3")
+    router = tgen.gears["R4"]
+    output = router.run("ping -c 4 -w 4 {}".format("10.0.1.3"))
+    assert " 0% packet loss" in output, "Ping R4->R3 FAILED"
+    logger.info("Ping from R4 to R3 ... success")
+
+
+def test_memory_leak():
+    "Run the memory leak test and report results."
+    tgen = get_topogen()
+    if not tgen.is_memleak_enabled():
+        pytest.skip("Memory leak test/report is disabled")
+
+    tgen.report_memory_leaks()
+
+
+if __name__ == "__main__":
+    args = ["-s"] + sys.argv[1:]
+    sys.exit(pytest.main(args))