From 60016a8e8be2826fb8494091583d7075ad60aeb7 Mon Sep 17 00:00:00 2001 From: Donatas Abraitis Date: Fri, 27 Sep 2024 13:59:42 +0300 Subject: [PATCH 1/2] bgpd: Show unmodified version of received-routes per neighbor If we have soft inbound enabled, we should see how the route looks like before it was modified by a route-map/prefix-list. Signed-off-by: Donatas Abraitis --- bgpd/bgp_route.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/bgpd/bgp_route.c b/bgpd/bgp_route.c index f28c9adda218..503bb09fd5be 100644 --- a/bgpd/bgp_route.c +++ b/bgpd/bgp_route.c @@ -14513,7 +14513,7 @@ show_adj_route(struct vty *vty, struct peer *peer, struct bgp_table *table, struct bgp_adj_out *adj = NULL; struct bgp_dest *dest; struct bgp *bgp; - struct attr attr; + struct attr attr, attr_unchanged; int ret; struct update_subgroup *subgrp; struct peer_af *paf = NULL; @@ -14693,6 +14693,7 @@ show_adj_route(struct vty *vty, struct peer *peer, struct bgp_table *table, } attr = *ain->attr; + attr_unchanged = *ain->attr; route_filtered = false; /* Filter prefix using distribute list, @@ -14748,9 +14749,8 @@ show_adj_route(struct vty *vty, struct peer *peer, struct bgp_table *table, json_ar, json_net, "%pFX", rn_p); } else - route_vty_out_tmp(vty, bgp, dest, rn_p, - &attr, safi, use_json, - json_ar, wide); + route_vty_out_tmp(vty, bgp, dest, rn_p, &attr_unchanged, + safi, use_json, json_ar, wide); bgp_attr_flush(&attr); (*output_count)++; } From f4c17673d142a9fbacf0c32a69a585449db93615 Mon Sep 17 00:00:00 2001 From: Donatas Abraitis Date: Fri, 27 Sep 2024 14:04:59 +0300 Subject: [PATCH 2/2] tests: Check if we can see unmodified received-routes with soft inbound Signed-off-by: Donatas Abraitis --- .../__init__.py | 0 .../r1/frr.conf | 17 +++ .../r2/frr.conf | 14 +++ ...t_bgp_received_routes_with_soft_inbound.py | 103 ++++++++++++++++++ 4 files changed, 134 insertions(+) create mode 100644 tests/topotests/bgp_received_routes_with_soft_inbound/__init__.py create mode 100644 tests/topotests/bgp_received_routes_with_soft_inbound/r1/frr.conf create mode 100644 tests/topotests/bgp_received_routes_with_soft_inbound/r2/frr.conf create mode 100644 tests/topotests/bgp_received_routes_with_soft_inbound/test_bgp_received_routes_with_soft_inbound.py diff --git a/tests/topotests/bgp_received_routes_with_soft_inbound/__init__.py b/tests/topotests/bgp_received_routes_with_soft_inbound/__init__.py new file mode 100644 index 000000000000..e69de29bb2d1 diff --git a/tests/topotests/bgp_received_routes_with_soft_inbound/r1/frr.conf b/tests/topotests/bgp_received_routes_with_soft_inbound/r1/frr.conf new file mode 100644 index 000000000000..01dd4f3c5a23 --- /dev/null +++ b/tests/topotests/bgp_received_routes_with_soft_inbound/r1/frr.conf @@ -0,0 +1,17 @@ +! +int r1-eth0 + ip address 192.168.1.1/24 +! +router bgp 65001 + no bgp ebgp-requires-policy + no bgp network import-check + neighbor 192.168.1.2 remote-as external + address-family ipv4 unicast + neighbor 192.168.1.2 route-map r2 in + neighbor 192.168.1.2 soft-reconfiguration inbound + exit-address-family +! +route-map r2 permit 10 + set as-path prepend 65000 65000 65000 +exit +! diff --git a/tests/topotests/bgp_received_routes_with_soft_inbound/r2/frr.conf b/tests/topotests/bgp_received_routes_with_soft_inbound/r2/frr.conf new file mode 100644 index 000000000000..86dd8e338955 --- /dev/null +++ b/tests/topotests/bgp_received_routes_with_soft_inbound/r2/frr.conf @@ -0,0 +1,14 @@ +! +int r2-eth0 + ip address 192.168.1.2/24 +! +router bgp 65002 + no bgp ebgp-requires-policy + no bgp network import-check + neighbor 192.168.1.1 remote-as external + neighbor 192.168.1.1 timers 1 3 + neighbor 192.168.1.1 timers connect 1 + address-family ipv4 unicast + network 10.0.0.2/32 + exit-address-family +! diff --git a/tests/topotests/bgp_received_routes_with_soft_inbound/test_bgp_received_routes_with_soft_inbound.py b/tests/topotests/bgp_received_routes_with_soft_inbound/test_bgp_received_routes_with_soft_inbound.py new file mode 100644 index 000000000000..0b933add2f64 --- /dev/null +++ b/tests/topotests/bgp_received_routes_with_soft_inbound/test_bgp_received_routes_with_soft_inbound.py @@ -0,0 +1,103 @@ +#!/usr/bin/env python +# SPDX-License-Identifier: ISC + +# Copyright (c) 2024 by +# Donatas Abraitis +# + +import os +import sys +import json +import pytest +import functools + +CWD = os.path.dirname(os.path.realpath(__file__)) +sys.path.append(os.path.join(CWD, "../")) + +# pylint: disable=C0413 +from lib import topotest +from lib.topogen import Topogen, get_topogen + +pytestmark = [pytest.mark.bgpd] + + +def setup_module(mod): + topodef = {"s1": ("r1", "r2")} + tgen = Topogen(topodef, mod.__name__) + tgen.start_topology() + + router_list = tgen.routers() + + for _, (rname, router) in enumerate(router_list.items(), 1): + router.load_frr_config(os.path.join(CWD, "{}/frr.conf".format(rname))) + + tgen.start_router() + + +def teardown_module(mod): + tgen = get_topogen() + tgen.stop_topology() + + +def test_bgp_received_routes_with_soft_inbound(): + tgen = get_topogen() + + if tgen.routers_have_failure(): + pytest.skip(tgen.errors) + + r1 = tgen.gears["r1"] + + def _bgp_converge(): + output = json.loads(r1.vtysh_cmd("show bgp ipv4 unicast json")) + expected = { + "routes": { + "10.0.0.2/32": [ + { + "valid": True, + "path": "65000 65000 65000 65002", + "nexthops": [ + { + "ip": "192.168.1.2", + } + ], + } + ] + } + } + + return topotest.json_cmp(output, expected) + + test_func = functools.partial( + _bgp_converge, + ) + _, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + assert result is None, "Can't converge" + + def _bgp_check_receveived_routes(): + output = json.loads( + r1.vtysh_cmd( + "show bgp ipv4 unicast neighbors 192.168.1.2 received-routes json" + ) + ) + expected = { + "receivedRoutes": { + "10.0.0.2/32": { + "valid": True, + "path": "65002", + "nextHop": "192.168.1.2", + } + } + } + + return topotest.json_cmp(output, expected) + + test_func = functools.partial( + _bgp_check_receveived_routes, + ) + _, result = topotest.run_and_expect(test_func, None, count=30, wait=1) + assert result is None, "Can't converge" + + +if __name__ == "__main__": + args = ["-s"] + sys.argv[1:] + sys.exit(pytest.main(args))