120 lines
2.3 KiB
Bash
120 lines
2.3 KiB
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# ns: h1 | ns: h2
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# 192.168.0.1/24 |
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# eth0 |
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# | 192.168.1.1/32
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# veth0 <---|---> veth1
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# Validate source address selection for route without gateway
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PAUSE_ON_FAIL=no
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VERBOSE=0
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ret=0
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################################################################################
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# helpers
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log_test()
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{
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local rc=$1
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local expected=$2
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local msg="$3"
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if [ ${rc} -eq ${expected} ]; then
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printf "TEST: %-60s [ OK ]\n" "${msg}"
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nsuccess=$((nsuccess+1))
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else
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ret=1
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nfail=$((nfail+1))
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printf "TEST: %-60s [FAIL]\n" "${msg}"
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if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
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echo
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echo "hit enter to continue, 'q' to quit"
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read a
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[ "$a" = "q" ] && exit 1
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fi
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fi
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[ "$VERBOSE" = "1" ] && echo
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}
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run_cmd()
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{
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local cmd="$*"
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local out
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local rc
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if [ "$VERBOSE" = "1" ]; then
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echo "COMMAND: $cmd"
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fi
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out=$(eval $cmd 2>&1)
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rc=$?
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if [ "$VERBOSE" = "1" -a -n "$out" ]; then
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echo "$out"
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fi
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[ "$VERBOSE" = "1" ] && echo
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return $rc
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}
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################################################################################
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# config
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setup()
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{
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ip netns add h1
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ip -n h1 link set lo up
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ip netns add h2
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ip -n h2 link set lo up
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# Add a fake eth0 to support an ip address
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ip -n h1 link add name eth0 type dummy
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ip -n h1 link set eth0 up
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ip -n h1 address add 192.168.0.1/24 dev eth0
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# Configure veths (same @mac, arp off)
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ip -n h1 link add name veth0 type veth peer name veth1 netns h2
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ip -n h1 link set veth0 up
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ip -n h2 link set veth1 up
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# Configure @IP in the peer netns
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ip -n h2 address add 192.168.1.1/32 dev veth1
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ip -n h2 route add default dev veth1
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# Add a nexthop without @gw and use it in a route
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ip -n h1 nexthop add id 1 dev veth0
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ip -n h1 route add 192.168.1.1 nhid 1
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}
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cleanup()
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{
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ip netns del h1 2>/dev/null
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ip netns del h2 2>/dev/null
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}
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trap cleanup EXIT
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################################################################################
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# main
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while getopts :pv o
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do
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case $o in
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p) PAUSE_ON_FAIL=yes;;
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v) VERBOSE=1;;
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esac
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done
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cleanup
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setup
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run_cmd ip -netns h1 route get 192.168.1.1
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log_test $? 0 "nexthop: get route with nexthop without gw"
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run_cmd ip netns exec h1 ping -c1 192.168.1.1
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log_test $? 0 "nexthop: ping through nexthop without gw"
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exit $ret
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