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tests: BGP : Dynamic route leak VRF lite (BGP-GR)
Authored-by: Shreenidhi A R <rshreenidhi@vmware.com> Signed-off-by: Shreenidhi A R <rshreenidhi@vmware.com>
This commit is contained in:
ARShreenidhi
Iqra Siddiqui
parent
641065d4fc
commit
771ac547f1
@ -0,0 +1,222 @@
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{
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"address_types": [
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"ipv4",
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"ipv6"
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],
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"ipv4base": "192.168.0.0",
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"ipv4mask": 24,
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"ipv6base": "fd00::",
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"ipv6mask": 64,
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"link_ip_start": {
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"ipv4": "192.168.0.0",
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"v4mask": 24,
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"ipv6": "fd00::",
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"v6mask": 64
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},
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"lo_prefix": {
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"ipv4": "1.0.",
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"v4mask": 32,
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"ipv6": "2001:DB8:F::",
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"v6mask": 128
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},
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"routers": {
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"r1": {
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"links": {
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"r2-link1": {
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"ipv4": "auto",
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"ipv6": "auto",
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"vrf": "RED"
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}
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},
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"vrfs": [
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{
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"name": "RED",
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"id": "1"
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}
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],
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"bgp": [
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{
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"local_as": "100",
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"vrf": "RED",
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"address_family": {
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"ipv4": {
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"unicast": {
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"neighbor": {
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"r2": {
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"dest_link": {
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"r1-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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},
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"ipv6": {
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"unicast": {
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"neighbor": {
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"r2": {
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"dest_link": {
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"r1-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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}
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}
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}
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]
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},
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"r2": {
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"links": {
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"r1-link1": {
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"ipv4": "auto",
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"ipv6": "auto",
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"vrf": "RED"
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},
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"r3-link1": {
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"ipv4": "auto",
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"ipv6": "auto"
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}
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},
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"vrfs": [
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{
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"name": "RED",
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"id": "1"
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}
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],
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"bgp": [
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{
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"local_as": "200",
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"address_family": {
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"ipv4": {
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"unicast": {
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"neighbor": {
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"r3": {
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"dest_link": {
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"r2-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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},
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"ipv6": {
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"unicast": {
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"neighbor": {
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"r3": {
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"dest_link": {
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"r2-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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}
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}
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},
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{
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"local_as": "200",
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"vrf": "RED",
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"address_family": {
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"ipv4": {
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"unicast": {
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"neighbor": {
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"r1": {
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"dest_link": {
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"r2-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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},
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"ipv6": {
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"unicast": {
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"neighbor": {
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"r1": {
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"dest_link": {
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"r2-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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}
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}
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}
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]
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},
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"r3": {
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"links": {
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"r2-link1": {
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"ipv4": "auto",
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"ipv6": "auto"
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}
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},
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"bgp": [
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{
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"local_as": "300",
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"address_family": {
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"ipv4": {
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"unicast": {
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"neighbor": {
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"r2": {
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"dest_link": {
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"r3-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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},
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"ipv6": {
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"unicast": {
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"neighbor": {
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"r2": {
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"dest_link": {
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"r3-link1": {}
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}
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}
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},
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"redistribute": [
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{
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"redist_type": "static"
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}
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]
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}
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}
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}
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}
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]
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}
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}
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}
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@ -0,0 +1,554 @@
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#!/usr/bin/env python
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#
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# Copyright (c) 2019 by VMware, Inc. ("VMware")
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# Used Copyright (c) 2018 by Network Device Education Foundation, Inc. ("NetDEF")
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# in this file.
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#
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# Permission to use, copy, modify, and/or distribute this software
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# for any purpose with or without fee is hereby granted, provided
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# that the above copyright notice and this permission notice appear
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# in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND VMWARE DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VMWARE BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY
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# DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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# WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
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# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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# OF THIS SOFTWARE.
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#
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import os
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import sys
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import time
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import pytest
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from time import sleep
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import traceback
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import ipaddress
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# Save the Current Working Directory to find configuration files.
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CWD = os.path.dirname(os.path.realpath(__file__))
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sys.path.append(os.path.join("../"))
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sys.path.append(os.path.join("../lib/"))
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# pylint: disable=C0413
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# Import topogen and topotest helpers
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from lib.topogen import Topogen, get_topogen
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from lib.topolog import logger
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# Required to instantiate the topology builder class.
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# Import topoJson from lib, to create topology and initial configuration
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from lib.topojson import build_config_from_json
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from lib.bgp import (
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clear_bgp,
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verify_bgp_rib,
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verify_graceful_restart,
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create_router_bgp,
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verify_r_bit,
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verify_eor,
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verify_f_bit,
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verify_bgp_convergence,
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verify_gr_address_family,
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modify_bgp_config_when_bgpd_down,
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verify_graceful_restart_timers,
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verify_bgp_convergence_from_running_config,
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)
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# Import common_config to use commomnly used APIs
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from lib.common_config import (create_common_configuration,
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InvalidCLIError, retry,
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generate_ips, FRRCFG_FILE,
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find_interface_with_greater_ip,
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check_address_types,
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validate_ip_address,
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run_frr_cmd,
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get_frr_ipv6_linklocal)
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from lib.common_config import (
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write_test_header,
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reset_config_on_routers,
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start_topology,
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kill_router_daemons,
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start_router_daemons,
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verify_rib,
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check_address_types,
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write_test_footer,
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check_router_status,
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step,
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get_frr_ipv6_linklocal,
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create_static_routes,
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required_linux_kernel_version,
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)
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pytestmark = [pytest.mark.bgpd]
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# Global variables
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BGP_CONVERGENCE = False
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GR_RESTART_TIMER = 5
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GR_SELECT_DEFER_TIMER = 5
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GR_STALEPATH_TIMER = 5
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# Global variables
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# STATIC_ROUTES=[]
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NETWORK1_1 = {"ipv4": "192.0.2.1/32", "ipv6": "2001:DB8::1:1/128"}
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NETWORK1_2 = {"ipv4": "192.0.2.2/32", "ipv6": "2001:DB8::2:1/128"}
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NETWORK2_1 = {"ipv4": "192.0.2.3/32", "ipv6": "2001:DB8::3:1/128"}
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NETWORK2_2 = {"ipv4": "192.0.2.4/32", "ipv6": "2001:DB8::4:1/128"}
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NETWORK3_1 = {"ipv4": "192.0.2.5/32", "ipv6": "2001:DB8::5:1/128"}
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NETWORK3_2 = {"ipv4": "192.0.2.6/32", "ipv6": "2001:DB8::6:1/128"}
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NETWORK4_1 = {"ipv4": "192.0.2.7/32", "ipv6": "2001:DB8::7:1/128"}
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NETWORK4_2 = {"ipv4": "192.0.2.8/32", "ipv6": "2001:DB8::8:1/128"}
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NETWORK5_1 = {"ipv4": "192.0.2.9/32", "ipv6": "2001:DB8::9:1/128"}
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NETWORK5_2 = {"ipv4": "192.0.2.10/32", "ipv6": "2001:DB8::10:1/128"}
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NEXT_HOP_IP = {"ipv4": "Null0", "ipv6": "Null0"}
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PREFERRED_NEXT_HOP = "link_local"
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def configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name,
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dut, peer):
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"""
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result = configure_gr_followed_by_clear(tgen, topo, dut)
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assert result is True, \
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"Testcase {} :Failed \n Error {}". \
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format(tc_name, result)
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"""
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result = create_router_bgp(tgen, topo, input_dict)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(
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tc_name, result)
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for addr_type in ADDR_TYPES:
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clear_bgp(tgen, addr_type, dut)
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for addr_type in ADDR_TYPES:
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clear_bgp(tgen, addr_type, peer)
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result = verify_bgp_convergence_from_running_config(tgen)
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assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
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return True
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def verify_stale_routes_list(tgen, addr_type, dut, input_dict):
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"""
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This API is use verify Stale routes on refering the network with next hop value
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Parameters
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----------
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* `tgen`: topogen object
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* `dut`: input dut router name
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* `addr_type` : ip type ipv4/ipv6
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* `input_dict` : input dict, has details of static routes
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Usage
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-----
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dut = 'r1'
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input_dict = {
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"r3": {
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"static_routes": [
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{
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"network": [NETWORK1_1[addr_type]],
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"no_of_ip": 2,
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"vrf": "RED"
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}
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]
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}
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}
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result = verify_stale_routes_list(tgen, addr_type, dut, input_dict)
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Returns
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-------
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errormsg(str) or True
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"""
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logger.debug("Entering lib API: verify_stale_routes_list()")
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router_list = tgen.routers()
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additional_nexthops_in_required_nhs = []
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list1 = []
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list2 = []
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found_hops = []
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for routerInput in input_dict.keys():
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for router, rnode in router_list.items():
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if router != dut:
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continue
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# Verifying RIB routes
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command = "show bgp"
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# Static routes
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sleep(2)
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logger.info('Checking router {} BGP RIB:'.format(dut))
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if 'static_routes' in input_dict[routerInput]:
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static_routes = input_dict[routerInput]["static_routes"]
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for static_route in static_routes:
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found_routes = []
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missing_routes = []
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st_found = False
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nh_found = False
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vrf = static_route.setdefault("vrf", None)
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community = static_route.setdefault("community", None)
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largeCommunity = \
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static_route.setdefault("largeCommunity", None)
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if vrf:
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cmd = "{} vrf {} {}".\
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format(command, vrf, addr_type)
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if community:
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cmd = "{} community {}".\
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format(cmd, community)
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if largeCommunity:
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cmd = "{} large-community {}".\
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format(cmd, largeCommunity)
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else:
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cmd = "{} {}".\
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format(command, addr_type)
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cmd = "{} json".format(cmd)
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rib_routes_json = run_frr_cmd(rnode, cmd, isjson=True)
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# Verifying output dictionary rib_routes_json is not empty
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if bool(rib_routes_json) == False:
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errormsg = "[DUT: {}]: No route found in rib of router". \
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format(router)
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return errormsg
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elif "warning" in rib_routes_json:
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errormsg = "[DUT: {}]: {}". \
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format(router, rib_routes_json["warning"])
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return errormsg
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network = static_route["network"]
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if "no_of_ip" in static_route:
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no_of_ip = static_route["no_of_ip"]
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else:
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no_of_ip = 1
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# Generating IPs for verification
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ip_list = generate_ips(network, no_of_ip)
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for st_rt in ip_list:
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st_rt = str(ipaddress.ip_network(st_rt))
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_addr_type = validate_ip_address(st_rt)
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if _addr_type != addr_type:
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continue
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if st_rt in rib_routes_json["routes"]:
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st_found = True
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found_routes.append(st_rt)
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for mnh in range(0, len(rib_routes_json[
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'routes'][st_rt])):
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found_hops.append([rib_r[
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"ip"] for rib_r in rib_routes_json[
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'routes'][st_rt][
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mnh]["nexthops"]])
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return found_hops
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else:
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return 'error msg - no hops found'
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def setup_module(mod):
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"""
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Sets up the pytest environment
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* `mod`: module name
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"""
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# Required linux kernel version for this suite to run.
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result = required_linux_kernel_version("4.16")
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if result is not True:
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pytest.skip("Kernel requirements are not met")
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global ADDR_TYPES
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testsuite_run_time = time.asctime(time.localtime(time.time()))
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logger.info("Testsuite start time: {}".format(testsuite_run_time))
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logger.info("=" * 40)
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logger.info("Running setup_module to create topology")
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# This function initiates the topology build with Topogen...
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json_file = "{}/bgp_gr_functionality_topo3.json".format(CWD)
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tgen = Topogen(json_file, mod.__name__)
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global topo
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topo = tgen.json_topo
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# ... and here it calls Mininet initialization functions.
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# Starting topology, create tmp files which are loaded to routers
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# to start deamons and then start routers
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start_topology(tgen)
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# Creating configuration from JSON
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build_config_from_json(tgen, topo)
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# Api call verify whether BGP is converged
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ADDR_TYPES = check_address_types()
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for addr_type in ADDR_TYPES:
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BGP_CONVERGENCE = verify_bgp_convergence(tgen, topo)
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assert BGP_CONVERGENCE is True, "setup_module : Failed \n Error:" " {}".format(
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BGP_CONVERGENCE
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)
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|
||||
logger.info("Running setup_module() done")
|
||||
|
||||
|
||||
def teardown_module(mod):
|
||||
"""
|
||||
Teardown the pytest environment
|
||||
|
||||
* `mod`: module name
|
||||
"""
|
||||
|
||||
logger.info("Running teardown_module to delete topology")
|
||||
|
||||
tgen = get_topogen()
|
||||
|
||||
# Stop toplogy and Remove tmp files
|
||||
tgen.stop_topology()
|
||||
|
||||
logger.info(
|
||||
"Testsuite end time: {}".format(time.asctime(time.localtime(time.time())))
|
||||
)
|
||||
logger.info("=" * 40)
|
||||
################################################################################
|
||||
#
|
||||
# TEST CASES
|
||||
#
|
||||
################################################################################
|
||||
def test_bgp_gr_stale_routes(request):
|
||||
tgen = get_topogen()
|
||||
tc_name = request.node.name
|
||||
write_test_header(tc_name)
|
||||
|
||||
step("Verify the router failures")
|
||||
if tgen.routers_have_failure():
|
||||
check_router_status(tgen)
|
||||
|
||||
step("Creating 5 static Routes in Router R3 with NULL0 as Next hop")
|
||||
for addr_type in ADDR_TYPES:
|
||||
input_dict_1 = {
|
||||
"r3": {
|
||||
"static_routes": [{
|
||||
"network": [NETWORK1_1[addr_type]] + [NETWORK1_2[addr_type]],
|
||||
"next_hop": NEXT_HOP_IP[addr_type]
|
||||
},
|
||||
{
|
||||
"network": [NETWORK2_1[addr_type]] + [NETWORK2_2[addr_type]],
|
||||
"next_hop": NEXT_HOP_IP[addr_type]
|
||||
},
|
||||
{
|
||||
"network": [NETWORK3_1[addr_type]] + [NETWORK3_2[addr_type]],
|
||||
"next_hop": NEXT_HOP_IP[addr_type]
|
||||
},
|
||||
{
|
||||
"network": [NETWORK4_1[addr_type]] + [NETWORK4_2[addr_type]],
|
||||
"next_hop": NEXT_HOP_IP[addr_type]
|
||||
},
|
||||
{
|
||||
"network": [NETWORK5_1[addr_type]] + [NETWORK5_2[addr_type]],
|
||||
"next_hop": NEXT_HOP_IP[addr_type]
|
||||
}]
|
||||
}
|
||||
}
|
||||
result = create_static_routes(tgen, input_dict_1)
|
||||
assert result is True, 'Testcase {} : Failed \n Error: {}'.format(
|
||||
tc_name, result)
|
||||
step("verifying Created Route at R3 in VRF default")
|
||||
for addr_type in ADDR_TYPES:
|
||||
dut = 'r3'
|
||||
input_dict_1= {'r3': topo['routers']['r3']}
|
||||
result = verify_bgp_rib(tgen, addr_type, dut, input_dict_1)
|
||||
assert result is True, \
|
||||
"Testcase {} :Failed \n Error {}". \
|
||||
format(tc_name, result)
|
||||
#done
|
||||
step("verifying Created Route at R2 in VRF default")
|
||||
for addr_type in ADDR_TYPES:
|
||||
dut = 'r2'
|
||||
input_dict_1= {'r2': topo['routers']['r2']}
|
||||
result = verify_bgp_rib(tgen, addr_type, dut, input_dict_1)
|
||||
assert result is True, \
|
||||
"Testcase {} :Failed \n Error {}". \
|
||||
format(tc_name, result)
|
||||
step("importing vrf RED on R2 under Address Family")
|
||||
for addr_type in ADDR_TYPES:
|
||||
input_import_vrf={
|
||||
"r2": {
|
||||
"bgp": [
|
||||
{
|
||||
"local_as": 200,
|
||||
"vrf": "RED",
|
||||
"address_family": {addr_type: {"unicast": {"import": {"vrf": "default"}}}},
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
result = create_router_bgp(tgen, topo,input_import_vrf)
|
||||
assert result is True, "Testcase {} : Failed \n Error: {}".format(tc_name, result)
|
||||
#done
|
||||
step("verifying static Routes at R2 in VRF RED")
|
||||
for addr_type in ADDR_TYPES:
|
||||
dut = 'r2'
|
||||
input_dict_1= {'r2': topo['routers']['r2']}
|
||||
result = verify_bgp_rib(tgen, addr_type, dut, input_dict_1)
|
||||
assert result is True, \
|
||||
"Testcase {} :Failed \n Error {}". \
|
||||
format(tc_name, result)
|
||||
|
||||
step("verifying static Routes at R1 in VRF RED")
|
||||
for addr_type in ADDR_TYPES:
|
||||
dut = 'r1'
|
||||
input_dict_1= {'r1': topo['routers']['r1']}
|
||||
result = verify_bgp_rib(tgen, addr_type, dut, input_dict_1)
|
||||
assert result is True, \
|
||||
"Testcase {} :Failed \n Error {}". \
|
||||
format(tc_name, result)
|
||||
|
||||
step("Configuring Graceful restart at R2 and R3 ")
|
||||
input_dict = {
|
||||
"r2": {
|
||||
|
||||
"bgp": {
|
||||
"local_as": "200",
|
||||
"graceful-restart": {
|
||||
"graceful-restart": True,
|
||||
}
|
||||
}
|
||||
},
|
||||
"r3": {
|
||||
"bgp": {
|
||||
"local_as": "300",
|
||||
"graceful-restart": {
|
||||
"graceful-restart": True
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name,dut='r2', peer='r3')
|
||||
|
||||
|
||||
|
||||
step("verify Graceful restart at R2")
|
||||
for addr_type in ADDR_TYPES:
|
||||
result = verify_graceful_restart(tgen, topo, addr_type, input_dict,
|
||||
dut='r2', peer='r3')
|
||||
assert result is True, \
|
||||
"Testcase {} :Failed \n Error {}". \
|
||||
format(tc_name, result)
|
||||
|
||||
step("verify Graceful restart at R3")
|
||||
for addr_type in ADDR_TYPES:
|
||||
result = verify_graceful_restart(tgen, topo, addr_type, input_dict,
|
||||
dut='r3', peer='r2')
|
||||
assert result is True, \
|
||||
"Testcase {} :Failed \n Error {}". \
|
||||
format(tc_name, result)
|
||||
|
||||
step("Configuring Graceful-restart-disable at R3")
|
||||
input_dict = {
|
||||
"r2": {
|
||||
|
||||
"bgp": {
|
||||
"local_as": "200",
|
||||
"graceful-restart": {
|
||||
"graceful-restart": False,
|
||||
}
|
||||
}
|
||||
},
|
||||
"r3": {
|
||||
"bgp": {
|
||||
"local_as": "300",
|
||||
"graceful-restart": {
|
||||
"graceful-restart": False
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name,dut='r3', peer='r2')
|
||||
|
||||
step("Verify Graceful-restart-disable at R3")
|
||||
for addr_type in ADDR_TYPES:
|
||||
result = verify_graceful_restart(tgen, topo, addr_type, input_dict,
|
||||
dut='r3', peer='r2')
|
||||
assert result is True, \
|
||||
"Testcase {} :Failed \n Error {}". \
|
||||
format(tc_name, result)
|
||||
|
||||
for iteration in range(5):
|
||||
step("graceful-restart-disable:True at R3")
|
||||
input_dict = {
|
||||
"r3": {
|
||||
"bgp": {
|
||||
"graceful-restart": {
|
||||
"graceful-restart-disable": True,
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name,
|
||||
dut='r3', peer='r2')
|
||||
|
||||
step("Verifying Routes at R2 on enabling GRD")
|
||||
dut = 'r2'
|
||||
for addr_type in ADDR_TYPES:
|
||||
input_dict_1= {'r2': topo['routers']['r2']}
|
||||
result = verify_bgp_rib(tgen, addr_type, dut, input_dict_1)
|
||||
assert result is True, "Testcase {} :Failed \n Error {}".format(tc_name, result)
|
||||
|
||||
step("Verify stale Routes in Router R2 enabling GRD")
|
||||
for addr_type in ADDR_TYPES:
|
||||
dut = "r2"
|
||||
protocol = "bgp"
|
||||
verify_nh_for_static_rtes = {
|
||||
"r3": {
|
||||
"static_routes": [
|
||||
|
||||
{
|
||||
"network": [NETWORK1_1[addr_type]],
|
||||
"no_of_ip": 2,
|
||||
"vrf": "RED"
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
bgp_rib_next_hops = verify_stale_routes_list(
|
||||
tgen, addr_type, dut, verify_nh_for_static_rtes)
|
||||
assert (len(bgp_rib_next_hops)== 1) is True, "Testcase {} : Failed \n Error: {}".format(
|
||||
tc_name, bgp_rib_next_hops,expected=True)
|
||||
|
||||
step("graceful-restart-disable:False at R3")
|
||||
input_dict = {
|
||||
"r3": {
|
||||
"bgp": {
|
||||
"graceful-restart": {
|
||||
"graceful-restart-disable": False,
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
configure_gr_followed_by_clear(tgen, topo, input_dict, tc_name,
|
||||
dut='r3', peer='r2')
|
||||
|
||||
step("Verifying Routes at R2 on disabling GRD")
|
||||
dut = 'r2'
|
||||
for addr_type in ADDR_TYPES:
|
||||
input_dict_1= {'r2': topo['routers']['r2']}
|
||||
result = verify_bgp_rib(tgen, addr_type, dut, input_dict_1)
|
||||
assert result is True, "Testcase {} :Failed \n Error {}".format(tc_name, result)
|
||||
|
||||
step("Verify stale Routes in Router R2 on disabling GRD")
|
||||
for addr_type in ADDR_TYPES:
|
||||
dut = "r2"
|
||||
protocol = "bgp"
|
||||
verify_nh_for_static_rtes = {
|
||||
"r3": {
|
||||
"static_routes": [
|
||||
|
||||
{
|
||||
"network": [NETWORK1_1[addr_type]],
|
||||
"no_of_ip": 2,
|
||||
"vrf": "RED"
|
||||
}
|
||||
]
|
||||
}
|
||||
}
|
||||
bgp_rib_next_hops = verify_stale_routes_list(tgen, addr_type, dut, verify_nh_for_static_rtes)
|
||||
|
||||
stale_route_status=len(bgp_rib_next_hops)== 1
|
||||
assert stale_route_status is True, "Testcase {} : Failed \n Error: {}".format(
|
||||
tc_name, stale_route_status,expected=True)
|
||||
write_test_footer(tc_name)
|
||||
|
||||
@ -3061,7 +3061,12 @@ def verify_graceful_restart(
|
||||
if router != dut:
|
||||
continue
|
||||
|
||||
bgp_addr_type = topo["routers"][dut]["bgp"]["address_family"]
|
||||
try:
|
||||
bgp_addr_type = topo["routers"][dut]["bgp"]["address_family"]
|
||||
except TypeError:
|
||||
bgp_addr_type = topo["routers"][dut]["bgp"][0]["address_family"]
|
||||
|
||||
# bgp_addr_type = topo["routers"][dut]["bgp"]["address_family"]
|
||||
|
||||
if addr_type in bgp_addr_type:
|
||||
if not check_address_types(addr_type):
|
||||
|
||||
Loading…
Reference in New Issue
Block a user