[PATCH 5.4 60/67] ipv4: Fix incorrect route flushing when source address is deleted

Greg Kroah-Hartman
2022-12-12T13:23:48Z

From: Ido Schimmel <idosch@nvidia.com>

[ Upstream commit f96a3d74554df537b6db5c99c27c80e7afadc8d1 ]

Cited commit added the table ID to the FIB info structure, but did not
prevent structures with different table IDs from being consolidated.
This can lead to routes being flushed from a VRF when an address is
deleted from a different VRF.

Fix by taking the table ID into account when looking for a matching FIB
info. This is already done for FIB info structures backed by a nexthop
object in fib_find_info_nh().

Add test cases that fail before the fix:

# ./fib_tests.sh -t ipv4_del_addr

IPv4 delete address route tests
Regular FIB info
TEST: Route removed from VRF when source address deleted [ OK ]
TEST: Route in default VRF not removed [ OK ]
TEST: Route removed in default VRF when source address deleted [ OK ]
TEST: Route in VRF is not removed by address delete [ OK ]
Identical FIB info with different table ID
TEST: Route removed from VRF when source address deleted [FAIL]
TEST: Route in default VRF not removed [ OK ]
RTNETLINK answers: File exists
TEST: Route removed in default VRF when source address deleted [ OK ]
TEST: Route in VRF is not removed by address delete [FAIL]

Tests passed: 6
Tests failed: 2

And pass after:

# ./fib_tests.sh -t ipv4_del_addr

IPv4 delete address route tests
Regular FIB info
TEST: Route removed from VRF when source address deleted [ OK ]
TEST: Route in default VRF not removed [ OK ]
TEST: Route removed in default VRF when source address deleted [ OK ]
TEST: Route in VRF is not removed by address delete [ OK ]
Identical FIB info with different table ID
TEST: Route removed from VRF when source address deleted [ OK ]
TEST: Route in default VRF not removed [ OK ]
TEST: Route removed in default VRF when source address deleted [ OK ]
TEST: Route in VRF is not removed by address delete [ OK ]

Tests passed: 8
Tests failed: 0

Fixes: 5a56a0b3a45d ("net: Don't delete routes in different VRFs")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
net/ipv4/fib_semantics.c | 1 +
tools/testing/selftests/net/fib_tests.sh | 1727 ----------------------
2 files changed, 1 insertion(+), 1727 deletions(-)
delete mode 100755 tools/testing/selftests/net/fib_tests.sh

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 908913d75847..f45b9daf62cf 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -420,6 +420,7 @@ static struct fib_info *fib_find_info(struct fib_info *nfi)
nfi->fib_prefsrc == fi->fib_prefsrc &&
nfi->fib_priority == fi->fib_priority &&
nfi->fib_type == fi->fib_type &&
+ nfi->fib_tb_id == fi->fib_tb_id &&
memcmp(nfi->fib_metrics, fi->fib_metrics,
sizeof(u32) * RTAX_MAX) == 0 &&
!((nfi->fib_flags ^ fi->fib_flags) & ~RTNH_COMPARE_MASK) &&
diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
deleted file mode 100755
index 6986086035d6..000000000000
--- a/tools/testing/selftests/net/fib_tests.sh
+++ /dev/null
@@ -1,1727 +0,0 @@
-#!/bin/bash
-# SPDX-License-Identifier: GPL-2.0
-
-# This test is for checking IPv4 and IPv6 FIB behavior in response to
-# different events.
-
-ret=0
-# Kselftest framework requirement - SKIP code is 4.
-ksft_skip=4
-
-# all tests in this script. Can be overridden with -t option
-TESTS="unregister down carrier nexthop suppress ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics ipv4_route_metrics ipv4_route_v6_gw rp_filter"
-
-VERBOSE=0
-PAUSE_ON_FAIL=no
-PAUSE=no
-IP="ip -netns ns1"
-NS_EXEC="ip netns exec ns1"
-
-which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
-
-log_test()
-{
- local rc=$1
- local expected=$2
- local msg="$3"
-
- if [ ${rc} -eq ${expected} ]; then
- printf " TEST: %-60s [ OK ]\n" "${msg}"
- nsuccess=$((nsuccess+1))
- else
- ret=1
- nfail=$((nfail+1))
- printf " TEST: %-60s [FAIL]\n" "${msg}"
- if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
- echo
- echo "hit enter to continue, 'q' to quit"
- read a
- [ "$a" = "q" ] && exit 1
- fi
- fi
-
- if [ "${PAUSE}" = "yes" ]; then
- echo
- echo "hit enter to continue, 'q' to quit"
- read a
- [ "$a" = "q" ] && exit 1
- fi
-}
-
-setup()
-{
- set -e
- ip netns add ns1
- ip netns set ns1 auto
- $IP link set dev lo up
- ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1
- ip netns exec ns1 sysctl -qw net.ipv6.conf.all.forwarding=1
-
- $IP link add dummy0 type dummy
- $IP link set dev dummy0 up
- $IP address add 198.51.100.1/24 dev dummy0
- $IP -6 address add 2001:db8:1::1/64 dev dummy0
- set +e
-
-}
-
-cleanup()
-{
- $IP link del dev dummy0 &> /dev/null
- ip netns del ns1
- ip netns del ns2 &> /dev/null
-}
-
-get_linklocal()
-{
- local dev=$1
- local addr
-
- addr=$($IP -6 -br addr show dev ${dev} | \
- awk '{
- for (i = 3; i <= NF; ++i) {
- if ($i ~ /^fe80/)
- print $i
- }
- }'
- )
- addr=${addr/\/*}
-
- [ -z "$addr" ] && return 1
-
- echo $addr
-
- return 0
-}
-
-fib_unreg_unicast_test()
-{
- echo
- echo "Single path route test"
-
- setup
-
- echo " Start point"
- $IP route get fibmatch 198.51.100.2 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- set -e
- $IP link del dev dummy0
- set +e
-
- echo " Nexthop device deleted"
- $IP route get fibmatch 198.51.100.2 &> /dev/null
- log_test $? 2 "IPv4 fibmatch - no route"
- $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
- log_test $? 2 "IPv6 fibmatch - no route"
-
- cleanup
-}
-
-fib_unreg_multipath_test()
-{
-
- echo
- echo "Multipath route test"
-
- setup
-
- set -e
- $IP link add dummy1 type dummy
- $IP link set dev dummy1 up
- $IP address add 192.0.2.1/24 dev dummy1
- $IP -6 address add 2001:db8:2::1/64 dev dummy1
-
- $IP route add 203.0.113.0/24 \
- nexthop via 198.51.100.2 dev dummy0 \
- nexthop via 192.0.2.2 dev dummy1
- $IP -6 route add 2001:db8:3::/64 \
- nexthop via 2001:db8:1::2 dev dummy0 \
- nexthop via 2001:db8:2::2 dev dummy1
- set +e
-
- echo " Start point"
- $IP route get fibmatch 203.0.113.1 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- set -e
- $IP link del dev dummy0
- set +e
-
- echo " One nexthop device deleted"
- $IP route get fibmatch 203.0.113.1 &> /dev/null
- log_test $? 2 "IPv4 - multipath route removed on delete"
-
- $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
- # In IPv6 we do not flush the entire multipath route.
- log_test $? 0 "IPv6 - multipath down to single path"
-
- set -e
- $IP link del dev dummy1
- set +e
-
- echo " Second nexthop device deleted"
- $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
- log_test $? 2 "IPv6 - no route"
-
- cleanup
-}
-
-fib_unreg_test()
-{
- fib_unreg_unicast_test
- fib_unreg_multipath_test
-}
-
-fib_down_unicast_test()
-{
- echo
- echo "Single path, admin down"
-
- setup
-
- echo " Start point"
- $IP route get fibmatch 198.51.100.2 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- set -e
- $IP link set dev dummy0 down
- set +e
-
- echo " Route deleted on down"
- $IP route get fibmatch 198.51.100.2 &> /dev/null
- log_test $? 2 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
- log_test $? 2 "IPv6 fibmatch"
-
- cleanup
-}
-
-fib_down_multipath_test_do()
-{
- local down_dev=$1
- local up_dev=$2
-
- $IP route get fibmatch 203.0.113.1 \
- oif $down_dev &> /dev/null
- log_test $? 2 "IPv4 fibmatch on down device"
- $IP -6 route get fibmatch 2001:db8:3::1 \
- oif $down_dev &> /dev/null
- log_test $? 2 "IPv6 fibmatch on down device"
-
- $IP route get fibmatch 203.0.113.1 \
- oif $up_dev &> /dev/null
- log_test $? 0 "IPv4 fibmatch on up device"
- $IP -6 route get fibmatch 2001:db8:3::1 \
- oif $up_dev &> /dev/null
- log_test $? 0 "IPv6 fibmatch on up device"
-
- $IP route get fibmatch 203.0.113.1 | \
- grep $down_dev | grep -q "dead linkdown"
- log_test $? 0 "IPv4 flags on down device"
- $IP -6 route get fibmatch 2001:db8:3::1 | \
- grep $down_dev | grep -q "dead linkdown"
- log_test $? 0 "IPv6 flags on down device"
-
- $IP route get fibmatch 203.0.113.1 | \
- grep $up_dev | grep -q "dead linkdown"
- log_test $? 1 "IPv4 flags on up device"
- $IP -6 route get fibmatch 2001:db8:3::1 | \
- grep $up_dev | grep -q "dead linkdown"
- log_test $? 1 "IPv6 flags on up device"
-}
-
-fib_down_multipath_test()
-{
- echo
- echo "Admin down multipath"
-
- setup
-
- set -e
- $IP link add dummy1 type dummy
- $IP link set dev dummy1 up
-
- $IP address add 192.0.2.1/24 dev dummy1
- $IP -6 address add 2001:db8:2::1/64 dev dummy1
-
- $IP route add 203.0.113.0/24 \
- nexthop via 198.51.100.2 dev dummy0 \
- nexthop via 192.0.2.2 dev dummy1
- $IP -6 route add 2001:db8:3::/64 \
- nexthop via 2001:db8:1::2 dev dummy0 \
- nexthop via 2001:db8:2::2 dev dummy1
- set +e
-
- echo " Verify start point"
- $IP route get fibmatch 203.0.113.1 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
-
- $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- set -e
- $IP link set dev dummy0 down
- set +e
-
- echo " One device down, one up"
- fib_down_multipath_test_do "dummy0" "dummy1"
-
- set -e
- $IP link set dev dummy0 up
- $IP link set dev dummy1 down
- set +e
-
- echo " Other device down and up"
- fib_down_multipath_test_do "dummy1" "dummy0"
-
- set -e
- $IP link set dev dummy0 down
- set +e
-
- echo " Both devices down"
- $IP route get fibmatch 203.0.113.1 &> /dev/null
- log_test $? 2 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
- log_test $? 2 "IPv6 fibmatch"
-
- $IP link del dev dummy1
- cleanup
-}
-
-fib_down_test()
-{
- fib_down_unicast_test
- fib_down_multipath_test
-}
-
-# Local routes should not be affected when carrier changes.
-fib_carrier_local_test()
-{
- echo
- echo "Local carrier tests - single path"
-
- setup
-
- set -e
- $IP link set dev dummy0 carrier on
- set +e
-
- echo " Start point"
- $IP route get fibmatch 198.51.100.1 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- $IP route get fibmatch 198.51.100.1 | \
- grep -q "linkdown"
- log_test $? 1 "IPv4 - no linkdown flag"
- $IP -6 route get fibmatch 2001:db8:1::1 | \
- grep -q "linkdown"
- log_test $? 1 "IPv6 - no linkdown flag"
-
- set -e
- $IP link set dev dummy0 carrier off
- sleep 1
- set +e
-
- echo " Carrier off on nexthop"
- $IP route get fibmatch 198.51.100.1 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- $IP route get fibmatch 198.51.100.1 | \
- grep -q "linkdown"
- log_test $? 1 "IPv4 - linkdown flag set"
- $IP -6 route get fibmatch 2001:db8:1::1 | \
- grep -q "linkdown"
- log_test $? 1 "IPv6 - linkdown flag set"
-
- set -e
- $IP address add 192.0.2.1/24 dev dummy0
- $IP -6 address add 2001:db8:2::1/64 dev dummy0
- set +e
-
- echo " Route to local address with carrier down"
- $IP route get fibmatch 192.0.2.1 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:2::1 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- $IP route get fibmatch 192.0.2.1 | \
- grep -q "linkdown"
- log_test $? 1 "IPv4 linkdown flag set"
- $IP -6 route get fibmatch 2001:db8:2::1 | \
- grep -q "linkdown"
- log_test $? 1 "IPv6 linkdown flag set"
-
- cleanup
-}
-
-fib_carrier_unicast_test()
-{
- ret=0
-
- echo
- echo "Single path route carrier test"
-
- setup
-
- set -e
- $IP link set dev dummy0 carrier on
- set +e
-
- echo " Start point"
- $IP route get fibmatch 198.51.100.2 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- $IP route get fibmatch 198.51.100.2 | \
- grep -q "linkdown"
- log_test $? 1 "IPv4 no linkdown flag"
- $IP -6 route get fibmatch 2001:db8:1::2 | \
- grep -q "linkdown"
- log_test $? 1 "IPv6 no linkdown flag"
-
- set -e
- $IP link set dev dummy0 carrier off
- sleep 1
- set +e
-
- echo " Carrier down"
- $IP route get fibmatch 198.51.100.2 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- $IP route get fibmatch 198.51.100.2 | \
- grep -q "linkdown"
- log_test $? 0 "IPv4 linkdown flag set"
- $IP -6 route get fibmatch 2001:db8:1::2 | \
- grep -q "linkdown"
- log_test $? 0 "IPv6 linkdown flag set"
-
- set -e
- $IP address add 192.0.2.1/24 dev dummy0
- $IP -6 address add 2001:db8:2::1/64 dev dummy0
- set +e
-
- echo " Second address added with carrier down"
- $IP route get fibmatch 192.0.2.2 &> /dev/null
- log_test $? 0 "IPv4 fibmatch"
- $IP -6 route get fibmatch 2001:db8:2::2 &> /dev/null
- log_test $? 0 "IPv6 fibmatch"
-
- $IP route get fibmatch 192.0.2.2 | \
- grep -q "linkdown"
- log_test $? 0 "IPv4 linkdown flag set"
- $IP -6 route get fibmatch 2001:db8:2::2 | \
- grep -q "linkdown"
- log_test $? 0 "IPv6 linkdown flag set"
-
- cleanup
-}
-
-fib_carrier_test()
-{
- fib_carrier_local_test
- fib_carrier_unicast_test
-}
-
-fib_rp_filter_test()
-{
- echo
- echo "IPv4 rp_filter tests"
-
- setup
-
- set -e
- ip netns add ns2
- ip netns set ns2 auto
-
- ip -netns ns2 link set dev lo up
-
- $IP link add name veth1 type veth peer name veth2
- $IP link set dev veth2 netns ns2
- $IP address add 192.0.2.1/24 dev veth1
- ip -netns ns2 address add 192.0.2.1/24 dev veth2
- $IP link set dev veth1 up
- ip -netns ns2 link set dev veth2 up
-
- $IP link set dev lo address 52:54:00:6a:c7:5e
- $IP link set dev veth1 address 52:54:00:6a:c7:5e
- ip -netns ns2 link set dev lo address 52:54:00:6a:c7:5e
- ip -netns ns2 link set dev veth2 address 52:54:00:6a:c7:5e
-
- # 1. (ns2) redirect lo's egress to veth2's egress
- ip netns exec ns2 tc qdisc add dev lo parent root handle 1: fq_codel
- ip netns exec ns2 tc filter add dev lo parent 1: protocol arp basic \
- action mirred egress redirect dev veth2
- ip netns exec ns2 tc filter add dev lo parent 1: protocol ip basic \
- action mirred egress redirect dev veth2
-
- # 2. (ns1) redirect veth1's ingress to lo's ingress
- $NS_EXEC tc qdisc add dev veth1 ingress
- $NS_EXEC tc filter add dev veth1 ingress protocol arp basic \
- action mirred ingress redirect dev lo
- $NS_EXEC tc filter add dev veth1 ingress protocol ip basic \
- action mirred ingress redirect dev lo
-
- # 3. (ns1) redirect lo's egress to veth1's egress
- $NS_EXEC tc qdisc add dev lo parent root handle 1: fq_codel
- $NS_EXEC tc filter add dev lo parent 1: protocol arp basic \
- action mirred egress redirect dev veth1
- $NS_EXEC tc filter add dev lo parent 1: protocol ip basic \
- action mirred egress redirect dev veth1
-
- # 4. (ns2) redirect veth2's ingress to lo's ingress
- ip netns exec ns2 tc qdisc add dev veth2 ingress
- ip netns exec ns2 tc filter add dev veth2 ingress protocol arp basic \
- action mirred ingress redirect dev lo
- ip netns exec ns2 tc filter add dev veth2 ingress protocol ip basic \
- action mirred ingress redirect dev lo
-
- $NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1
- $NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1
- $NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1
- ip netns exec ns2 sysctl -qw net.ipv4.conf.all.rp_filter=1
- ip netns exec ns2 sysctl -qw net.ipv4.conf.all.accept_local=1
- ip netns exec ns2 sysctl -qw net.ipv4.conf.all.route_localnet=1
- set +e
-
- run_cmd "ip netns exec ns2 ping -w1 -c1 192.0.2.1"
- log_test $? 0 "rp_filter passes local packets"
-
- run_cmd "ip netns exec ns2 ping -w1 -c1 127.0.0.1"
- log_test $? 0 "rp_filter passes loopback packets"
-
- cleanup
-}
-
-################################################################################
-# Tests on nexthop spec
-
-# run 'ip route add' with given spec
-add_rt()
-{
- local desc="$1"
- local erc=$2
- local vrf=$3
- local pfx=$4
- local gw=$5
- local dev=$6
- local cmd out rc
-
- [ "$vrf" = "-" ] && vrf="default"
- [ -n "$gw" ] && gw="via $gw"
- [ -n "$dev" ] && dev="dev $dev"
-
- cmd="$IP route add vrf $vrf $pfx $gw $dev"
- if [ "$VERBOSE" = "1" ]; then
- printf "\n COMMAND: $cmd\n"
- fi
-
- out=$(eval $cmd 2>&1)
- rc=$?
- if [ "$VERBOSE" = "1" -a -n "$out" ]; then
- echo " $out"
- fi
- log_test $rc $erc "$desc"
-}
-
-fib4_nexthop()
-{
- echo
- echo "IPv4 nexthop tests"
-
- echo "<<< write me >>>"
-}
-
-fib6_nexthop()
-{
- local lldummy=$(get_linklocal dummy0)
- local llv1=$(get_linklocal dummy0)
-
- if [ -z "$lldummy" ]; then
- echo "Failed to get linklocal address for dummy0"
- return 1
- fi
- if [ -z "$llv1" ]; then
- echo "Failed to get linklocal address for veth1"
- return 1
- fi
-
- echo
- echo "IPv6 nexthop tests"
-
- add_rt "Directly connected nexthop, unicast address" 0 \
- - 2001:db8:101::/64 2001:db8:1::2
- add_rt "Directly connected nexthop, unicast address with device" 0 \
- - 2001:db8:102::/64 2001:db8:1::2 "dummy0"
- add_rt "Gateway is linklocal address" 0 \
- - 2001:db8:103::1/64 $llv1 "veth0"
-
- # fails because LL address requires a device
- add_rt "Gateway is linklocal address, no device" 2 \
- - 2001:db8:104::1/64 $llv1
-
- # local address can not be a gateway
- add_rt "Gateway can not be local unicast address" 2 \
- - 2001:db8:105::/64 2001:db8:1::1
- add_rt "Gateway can not be local unicast address, with device" 2 \
- - 2001:db8:106::/64 2001:db8:1::1 "dummy0"
- add_rt "Gateway can not be a local linklocal address" 2 \
- - 2001:db8:107::1/64 $lldummy "dummy0"
-
- # VRF tests
- add_rt "Gateway can be local address in a VRF" 0 \
- - 2001:db8:108::/64 2001:db8:51::2
- add_rt "Gateway can be local address in a VRF, with device" 0 \
- - 2001:db8:109::/64 2001:db8:51::2 "veth0"
- add_rt "Gateway can be local linklocal address in a VRF" 0 \
- - 2001:db8:110::1/64 $llv1 "veth0"
-
- add_rt "Redirect to VRF lookup" 0 \
- - 2001:db8:111::/64 "" "red"
-
- add_rt "VRF route, gateway can be local address in default VRF" 0 \
- red 2001:db8:112::/64 2001:db8:51::1
-
- # local address in same VRF fails
- add_rt "VRF route, gateway can not be a local address" 2 \
- red 2001:db8:113::1/64 2001:db8:2::1
- add_rt "VRF route, gateway can not be a local addr with device" 2 \
- red 2001:db8:114::1/64 2001:db8:2::1 "dummy1"
-}
-
-# Default VRF:
-# dummy0 - 198.51.100.1/24 2001:db8:1::1/64
-# veth0 - 192.0.2.1/24 2001:db8:51::1/64
-#
-# VRF red:
-# dummy1 - 192.168.2.1/24 2001:db8:2::1/64
-# veth1 - 192.0.2.2/24 2001:db8:51::2/64
-#
-# [ dummy0 veth0 ]--[ veth1 dummy1 ]
-
-fib_nexthop_test()
-{
- setup
-
- set -e
-
- $IP -4 rule add pref 32765 table local
- $IP -4 rule del pref 0
- $IP -6 rule add pref 32765 table local
- $IP -6 rule del pref 0
-
- $IP link add red type vrf table 1
- $IP link set red up
- $IP -4 route add vrf red unreachable default metric 4278198272
- $IP -6 route add vrf red unreachable default metric 4278198272
-
- $IP link add veth0 type veth peer name veth1
- $IP link set dev veth0 up
- $IP address add 192.0.2.1/24 dev veth0
- $IP -6 address add 2001:db8:51::1/64 dev veth0
-
- $IP link set dev veth1 vrf red up
- $IP address add 192.0.2.2/24 dev veth1
- $IP -6 address add 2001:db8:51::2/64 dev veth1
-
- $IP link add dummy1 type dummy
- $IP link set dev dummy1 vrf red up
- $IP address add 192.168.2.1/24 dev dummy1
- $IP -6 address add 2001:db8:2::1/64 dev dummy1
- set +e
-
- sleep 1
- fib4_nexthop
- fib6_nexthop
-
- (
- $IP link del dev dummy1
- $IP link del veth0
- $IP link del red
- ) 2>/dev/null
- cleanup
-}
-
-fib_suppress_test()
-{
- echo
- echo "FIB rule with suppress_prefixlength"
- setup
-
- $IP link add dummy1 type dummy
- $IP link set dummy1 up
- $IP -6 route add default dev dummy1
- $IP -6 rule add table main suppress_prefixlength 0
- ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1
- $IP -6 rule del table main suppress_prefixlength 0
- $IP link del dummy1
-
- # If we got here without crashing, we're good.
- log_test 0 0 "FIB rule suppress test"
-
- cleanup
-}
-
-################################################################################
-# Tests on route add and replace
-
-run_cmd()
-{
- local cmd="$1"
- local out
- local stderr="2>/dev/null"
-
- if [ "$VERBOSE" = "1" ]; then
- printf " COMMAND: $cmd\n"
- stderr=
- fi
-
- out=$(eval $cmd $stderr)
- rc=$?
- if [ "$VERBOSE" = "1" -a -n "$out" ]; then
- echo " $out"
- fi
-
- [ "$VERBOSE" = "1" ] && echo
-
- return $rc
-}
-
-check_expected()
-{
- local out="$1"
- local expected="$2"
- local rc=0
-
- [ "${out}" = "${expected}" ] && return 0
-
- if [ -z "${out}" ]; then
- if [ "$VERBOSE" = "1" ]; then
- printf "\nNo route entry found\n"
- printf "Expected:\n"
- printf " ${expected}\n"
- fi
- return 1
- fi
-
- # tricky way to convert output to 1-line without ip's
- # messy '\'; this drops all extra white space
- out=$(echo ${out})
- if [ "${out}" != "${expected}" ]; then
- rc=1
- if [ "${VERBOSE}" = "1" ]; then
- printf " Unexpected route entry. Have:\n"
- printf " ${out}\n"
- printf " Expected:\n"
- printf " ${expected}\n\n"
- fi
- fi
-
- return $rc
-}
-
-# add route for a prefix, flushing any existing routes first
-# expected to be the first step of a test
-add_route6()
-{
- local pfx="$1"
- local nh="$2"
- local out
-
- if [ "$VERBOSE" = "1" ]; then
- echo
- echo " ##################################################"
- echo
- fi
-
- run_cmd "$IP -6 ro flush ${pfx}"
- [ $? -ne 0 ] && exit 1
-
- out=$($IP -6 ro ls match ${pfx})
- if [ -n "$out" ]; then
- echo "Failed to flush routes for prefix used for tests."
- exit 1
- fi
-
- run_cmd "$IP -6 ro add ${pfx} ${nh}"
- if [ $? -ne 0 ]; then
- echo "Failed to add initial route for test."
- exit 1
- fi
-}
-
-# add initial route - used in replace route tests
-add_initial_route6()
-{
- add_route6 "2001:db8:104::/64" "$1"
-}
-
-check_route6()
-{
- local pfx
- local expected="$1"
- local out
- local rc=0
-
- set -- $expected
- pfx=$1
-
- out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
- check_expected "${out}" "${expected}"
-}
-
-route_cleanup()
-{
- $IP li del red 2>/dev/null
- $IP li del dummy1 2>/dev/null
- $IP li del veth1 2>/dev/null
- $IP li del veth3 2>/dev/null
-
- cleanup &> /dev/null
-}
-
-route_setup()
-{
- route_cleanup
- setup
-
- [ "${VERBOSE}" = "1" ] && set -x
- set -e
-
- ip netns add ns2
- ip netns set ns2 auto
- ip -netns ns2 link set dev lo up
- ip netns exec ns2 sysctl -qw net.ipv4.ip_forward=1
- ip netns exec ns2 sysctl -qw net.ipv6.conf.all.forwarding=1
-
- $IP li add veth1 type veth peer name veth2
- $IP li add veth3 type veth peer name veth4
-
- $IP li set veth1 up
- $IP li set veth3 up
- $IP li set veth2 netns ns2 up
- $IP li set veth4 netns ns2 up
- ip -netns ns2 li add dummy1 type dummy
- ip -netns ns2 li set dummy1 up
-
- $IP -6 addr add 2001:db8:101::1/64 dev veth1 nodad
- $IP -6 addr add 2001:db8:103::1/64 dev veth3 nodad
- $IP addr add 172.16.101.1/24 dev veth1
- $IP addr add 172.16.103.1/24 dev veth3
-
- ip -netns ns2 -6 addr add 2001:db8:101::2/64 dev veth2 nodad
- ip -netns ns2 -6 addr add 2001:db8:103::2/64 dev veth4 nodad
- ip -netns ns2 -6 addr add 2001:db8:104::1/64 dev dummy1 nodad
-
- ip -netns ns2 addr add 172.16.101.2/24 dev veth2
- ip -netns ns2 addr add 172.16.103.2/24 dev veth4
- ip -netns ns2 addr add 172.16.104.1/24 dev dummy1
-
- set +e
-}
-
-# assumption is that basic add of a single path route works
-# otherwise just adding an address on an interface is broken
-ipv6_rt_add()
-{
- local rc
-
- echo
- echo "IPv6 route add / append tests"
-
- # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
- add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
- run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2"
- log_test $? 2 "Attempt to add duplicate route - gw"
-
- # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
- add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
- run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3"
- log_test $? 2 "Attempt to add duplicate route - dev only"
-
- # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
- add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
- run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
- log_test $? 2 "Attempt to add duplicate route - reject route"
-
- # route append with same prefix adds a new route
- # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
- add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
- run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
- check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- log_test $? 0 "Append nexthop to existing route - gw"
-
- # insert mpath directly
- add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- log_test $? 0 "Add multipath route"
-
- add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- log_test $? 2 "Attempt to add duplicate multipath route"
-
- # insert of a second route without append but different metric
- add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
- run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512"
- rc=$?
- if [ $rc -eq 0 ]; then
- run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256"
- rc=$?
- fi
- log_test $rc 0 "Route add with different metrics"
-
- run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
- rc=$?
- fi
- log_test $rc 0 "Route delete with metric"
-}
-
-ipv6_rt_replace_single()
-{
- # single path with single path
- #
- add_initial_route6 "via 2001:db8:101::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2"
- check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
- log_test $? 0 "Single path with single path"
-
- # single path with multipath
- #
- add_initial_route6 "nexthop via 2001:db8:101::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2"
- check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- log_test $? 0 "Single path with multipath"
-
- # single path with single path using MULTIPATH attribute
- #
- add_initial_route6 "via 2001:db8:101::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2"
- check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
- log_test $? 0 "Single path with single path via multipath attribute"
-
- # route replace fails - invalid nexthop
- add_initial_route6 "via 2001:db8:101::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2"
- if [ $? -eq 0 ]; then
- # previous command is expected to fail so if it returns 0
- # that means the test failed.
- log_test 0 1 "Invalid nexthop"
- else
- check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
- log_test $? 0 "Invalid nexthop"
- fi
-
- # replace non-existent route
- # - note use of change versus replace since ip adds NLM_F_CREATE
- # for replace
- add_initial_route6 "via 2001:db8:101::2"
- run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2"
- log_test $? 2 "Single path - replace of non-existent route"
-}
-
-ipv6_rt_replace_mpath()
-{
- # multipath with multipath
- add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
- check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::3 dev veth3 weight 1"
- log_test $? 0 "Multipath with multipath"
-
- # multipath with single
- add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3"
- check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
- log_test $? 0 "Multipath with single path"
-
- # multipath with single
- add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3"
- check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
- log_test $? 0 "Multipath with single path via multipath attribute"
-
- # multipath with dev-only
- add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 dev veth1"
- check_route6 "2001:db8:104::/64 dev veth1 metric 1024"
- log_test $? 0 "Multipath with dev-only"
-
- # route replace fails - invalid nexthop 1
- add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3"
- check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- log_test $? 0 "Multipath - invalid first nexthop"
-
- # route replace fails - invalid nexthop 2
- add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3"
- check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- log_test $? 0 "Multipath - invalid second nexthop"
-
- # multipath non-existent route
- add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
- log_test $? 2 "Multipath - replace of non-existent route"
-}
-
-ipv6_rt_replace()
-{
- echo
- echo "IPv6 route replace tests"
-
- ipv6_rt_replace_single
- ipv6_rt_replace_mpath
-}
-
-ipv6_route_test()
-{
- route_setup
-
- ipv6_rt_add
- ipv6_rt_replace
-
- route_cleanup
-}
-
-ip_addr_metric_check()
-{
- ip addr help 2>&1 | grep -q metric
- if [ $? -ne 0 ]; then
- echo "iproute2 command does not support metric for addresses. Skipping test"
- return 1
- fi
-
- return 0
-}
-
-ipv6_addr_metric_test()
-{
- local rc
-
- echo
- echo "IPv6 prefix route tests"
-
- ip_addr_metric_check || return 1
-
- setup
-
- set -e
- $IP li add dummy1 type dummy
- $IP li add dummy2 type dummy
- $IP li set dummy1 up
- $IP li set dummy2 up
-
- # default entry is metric 256
- run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64"
- run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64"
- set +e
-
- check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256"
- log_test $? 0 "Default metric"
-
- set -e
- run_cmd "$IP -6 addr flush dev dummy1"
- run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257"
- set +e
-
- check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257"
- log_test $? 0 "User specified metric on first device"
-
- set -e
- run_cmd "$IP -6 addr flush dev dummy2"
- run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258"
- set +e
-
- check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258"
- log_test $? 0 "User specified metric on second device"
-
- run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258"
- rc=$?
- fi
- log_test $rc 0 "Delete of address on first device"
-
- run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
- rc=$?
- fi
- log_test $rc 0 "Modify metric of address"
-
- # verify prefix route removed on down
- run_cmd "ip netns exec ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1"
- run_cmd "$IP li set dev dummy2 down"
- rc=$?
- if [ $rc -eq 0 ]; then
- out=$($IP -6 ro ls match 2001:db8:104::/64)
- check_expected "${out}" ""
- rc=$?
- fi
- log_test $rc 0 "Prefix route removed on link down"
-
- # verify prefix route re-inserted with assigned metric
- run_cmd "$IP li set dev dummy2 up"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
- rc=$?
- fi
- log_test $rc 0 "Prefix route with metric on link up"
-
- # verify peer metric added correctly
- set -e
- run_cmd "$IP -6 addr flush dev dummy2"
- run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::1 peer 2001:db8:104::2 metric 260"
- set +e
-
- check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260"
- log_test $? 0 "Set metric with peer route on local side"
- check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260"
- log_test $? 0 "Set metric with peer route on peer side"
-
- set -e
- run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::1 peer 2001:db8:104::3 metric 261"
- set +e
-
- check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 261"
- log_test $? 0 "Modify metric and peer address on local side"
- check_route6 "2001:db8:104::3 dev dummy2 proto kernel metric 261"
- log_test $? 0 "Modify metric and peer address on peer side"
-
- $IP li del dummy1
- $IP li del dummy2
- cleanup
-}
-
-ipv6_route_metrics_test()
-{
- local rc
-
- echo
- echo "IPv6 routes with metrics"
-
- route_setup
-
- #
- # single path with metrics
- #
- run_cmd "$IP -6 ro add 2001:db8:111::/64 via 2001:db8:101::2 mtu 1400"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:111::/64 via 2001:db8:101::2 dev veth1 metric 1024 mtu 1400"
- rc=$?
- fi
- log_test $rc 0 "Single path route with mtu metric"
-
-
- #
- # multipath via separate routes with metrics
- #
- run_cmd "$IP -6 ro add 2001:db8:112::/64 via 2001:db8:101::2 mtu 1400"
- run_cmd "$IP -6 ro append 2001:db8:112::/64 via 2001:db8:103::2"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:112::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- rc=$?
- fi
- log_test $rc 0 "Multipath route via 2 single routes with mtu metric on first"
-
- # second route is coalesced to first to make a multipath route.
- # MTU of the second path is hidden from display!
- run_cmd "$IP -6 ro add 2001:db8:113::/64 via 2001:db8:101::2"
- run_cmd "$IP -6 ro append 2001:db8:113::/64 via 2001:db8:103::2 mtu 1400"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:113::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- rc=$?
- fi
- log_test $rc 0 "Multipath route via 2 single routes with mtu metric on 2nd"
-
- run_cmd "$IP -6 ro del 2001:db8:113::/64 via 2001:db8:101::2"
- if [ $? -eq 0 ]; then
- check_route6 "2001:db8:113::/64 via 2001:db8:103::2 dev veth3 metric 1024 mtu 1400"
- log_test $? 0 " MTU of second leg"
- fi
-
- #
- # multipath with metrics
- #
- run_cmd "$IP -6 ro add 2001:db8:115::/64 mtu 1400 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route6 "2001:db8:115::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
- rc=$?
- fi
- log_test $rc 0 "Multipath route with mtu metric"
-
- $IP -6 ro add 2001:db8:104::/64 via 2001:db8:101::2 mtu 1300
- run_cmd "ip netns exec ns1 ${ping6} -w1 -c1 -s 1500 2001:db8:104::1"
- log_test $? 0 "Using route with mtu metric"
-
- run_cmd "$IP -6 ro add 2001:db8:114::/64 via 2001:db8:101::2 congctl lock foo"
- log_test $? 2 "Invalid metric (fails metric_convert)"
-
- route_cleanup
-}
-
-# add route for a prefix, flushing any existing routes first
-# expected to be the first step of a test
-add_route()
-{
- local pfx="$1"
- local nh="$2"
- local out
-
- if [ "$VERBOSE" = "1" ]; then
- echo
- echo " ##################################################"
- echo
- fi
-
- run_cmd "$IP ro flush ${pfx}"
- [ $? -ne 0 ] && exit 1
-
- out=$($IP ro ls match ${pfx})
- if [ -n "$out" ]; then
- echo "Failed to flush routes for prefix used for tests."
- exit 1
- fi
-
- run_cmd "$IP ro add ${pfx} ${nh}"
- if [ $? -ne 0 ]; then
- echo "Failed to add initial route for test."
- exit 1
- fi
-}
-
-# add initial route - used in replace route tests
-add_initial_route()
-{
- add_route "172.16.104.0/24" "$1"
-}
-
-check_route()
-{
- local pfx
- local expected="$1"
- local out
-
- set -- $expected
- pfx=$1
- [ "${pfx}" = "unreachable" ] && pfx=$2
-
- out=$($IP ro ls match ${pfx})
- check_expected "${out}" "${expected}"
-}
-
-# assumption is that basic add of a single path route works
-# otherwise just adding an address on an interface is broken
-ipv4_rt_add()
-{
- local rc
-
- echo
- echo "IPv4 route add / append tests"
-
- # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2"
- log_test $? 2 "Attempt to add duplicate route - gw"
-
- # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro add 172.16.104.0/24 dev veth3"
- log_test $? 2 "Attempt to add duplicate route - dev only"
-
- # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro add unreachable 172.16.104.0/24"
- log_test $? 2 "Attempt to add duplicate route - reject route"
-
- # iproute2 prepend only sets NLM_F_CREATE
- # - adds a new route; does NOT convert existing route to ECMP
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro prepend 172.16.104.0/24 via 172.16.103.2"
- check_route "172.16.104.0/24 via 172.16.103.2 dev veth3 172.16.104.0/24 via 172.16.101.2 dev veth1"
- log_test $? 0 "Add new nexthop for existing prefix"
-
- # route append with same prefix adds a new route
- # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
- check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.2 dev veth3"
- log_test $? 0 "Append nexthop to existing route - gw"
-
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
- check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 dev veth3 scope link"
- log_test $? 0 "Append nexthop to existing route - dev only"
-
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro append unreachable 172.16.104.0/24"
- check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 unreachable 172.16.104.0/24"
- log_test $? 0 "Append nexthop to existing route - reject route"
-
- run_cmd "$IP ro flush 172.16.104.0/24"
- run_cmd "$IP ro add unreachable 172.16.104.0/24"
- run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
- check_route "unreachable 172.16.104.0/24 172.16.104.0/24 via 172.16.103.2 dev veth3"
- log_test $? 0 "Append nexthop to existing reject route - gw"
-
- run_cmd "$IP ro flush 172.16.104.0/24"
- run_cmd "$IP ro add unreachable 172.16.104.0/24"
- run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
- check_route "unreachable 172.16.104.0/24 172.16.104.0/24 dev veth3 scope link"
- log_test $? 0 "Append nexthop to existing reject route - dev only"
-
- # insert mpath directly
- add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
- log_test $? 0 "add multipath route"
-
- add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- log_test $? 2 "Attempt to add duplicate multipath route"
-
- # insert of a second route without append but different metric
- add_route "172.16.104.0/24" "via 172.16.101.2"
- run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2 metric 512"
- rc=$?
- if [ $rc -eq 0 ]; then
- run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.3 metric 256"
- rc=$?
- fi
- log_test $rc 0 "Route add with different metrics"
-
- run_cmd "$IP ro del 172.16.104.0/24 metric 512"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.3 dev veth3 metric 256"
- rc=$?
- fi
- log_test $rc 0 "Route delete with metric"
-}
-
-ipv4_rt_replace_single()
-{
- # single path with single path
- #
- add_initial_route "via 172.16.101.2"
- run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.103.2"
- check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
- log_test $? 0 "Single path with single path"
-
- # single path with multipath
- #
- add_initial_route "nexthop via 172.16.101.2"
- run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.2"
- check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
- log_test $? 0 "Single path with multipath"
-
- # single path with reject
- #
- add_initial_route "nexthop via 172.16.101.2"
- run_cmd "$IP ro replace unreachable 172.16.104.0/24"
- check_route "unreachable 172.16.104.0/24"
- log_test $? 0 "Single path with reject route"
-
- # single path with single path using MULTIPATH attribute
- #
- add_initial_route "via 172.16.101.2"
- run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.103.2"
- check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
- log_test $? 0 "Single path with single path via multipath attribute"
-
- # route replace fails - invalid nexthop
- add_initial_route "via 172.16.101.2"
- run_cmd "$IP ro replace 172.16.104.0/24 via 2001:db8:104::2"
- if [ $? -eq 0 ]; then
- # previous command is expected to fail so if it returns 0
- # that means the test failed.
- log_test 0 1 "Invalid nexthop"
- else
- check_route "172.16.104.0/24 via 172.16.101.2 dev veth1"
- log_test $? 0 "Invalid nexthop"
- fi
-
- # replace non-existent route
- # - note use of change versus replace since ip adds NLM_F_CREATE
- # for replace
- add_initial_route "via 172.16.101.2"
- run_cmd "$IP ro change 172.16.105.0/24 via 172.16.101.2"
- log_test $? 2 "Single path - replace of non-existent route"
-}
-
-ipv4_rt_replace_mpath()
-{
- # multipath with multipath
- add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
- check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.3 dev veth3 weight 1"
- log_test $? 0 "Multipath with multipath"
-
- # multipath with single
- add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.101.3"
- check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
- log_test $? 0 "Multipath with single path"
-
- # multipath with single
- add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3"
- check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
- log_test $? 0 "Multipath with single path via multipath attribute"
-
- # multipath with reject
- add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro replace unreachable 172.16.104.0/24"
- check_route "unreachable 172.16.104.0/24"
- log_test $? 0 "Multipath with reject route"
-
- # route replace fails - invalid nexthop 1
- add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.111.3 nexthop via 172.16.103.3"
- check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
- log_test $? 0 "Multipath - invalid first nexthop"
-
- # route replace fails - invalid nexthop 2
- add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.113.3"
- check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
- log_test $? 0 "Multipath - invalid second nexthop"
-
- # multipath non-existent route
- add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- run_cmd "$IP ro change 172.16.105.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
- log_test $? 2 "Multipath - replace of non-existent route"
-}
-
-ipv4_rt_replace()
-{
- echo
- echo "IPv4 route replace tests"
-
- ipv4_rt_replace_single
- ipv4_rt_replace_mpath
-}
-
-ipv4_route_test()
-{
- route_setup
-
- ipv4_rt_add
- ipv4_rt_replace
-
- route_cleanup
-}
-
-ipv4_addr_metric_test()
-{
- local rc
-
- echo
- echo "IPv4 prefix route tests"
-
- ip_addr_metric_check || return 1
-
- setup
-
- set -e
- $IP li add dummy1 type dummy
- $IP li add dummy2 type dummy
- $IP li set dummy1 up
- $IP li set dummy2 up
-
- # default entry is metric 256
- run_cmd "$IP addr add dev dummy1 172.16.104.1/24"
- run_cmd "$IP addr add dev dummy2 172.16.104.2/24"
- set +e
-
- check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2"
- log_test $? 0 "Default metric"
-
- set -e
- run_cmd "$IP addr flush dev dummy1"
- run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257"
- set +e
-
- check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257"
- log_test $? 0 "User specified metric on first device"
-
- set -e
- run_cmd "$IP addr flush dev dummy2"
- run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258"
- set +e
-
- check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
- log_test $? 0 "User specified metric on second device"
-
- run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
- rc=$?
- fi
- log_test $rc 0 "Delete of address on first device"
-
- run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
- rc=$?
- fi
- log_test $rc 0 "Modify metric of address"
-
- # verify prefix route removed on down
- run_cmd "$IP li set dev dummy2 down"
- rc=$?
- if [ $rc -eq 0 ]; then
- out=$($IP ro ls match 172.16.104.0/24)
- check_expected "${out}" ""
- rc=$?
- fi
- log_test $rc 0 "Prefix route removed on link down"
-
- # verify prefix route re-inserted with assigned metric
- run_cmd "$IP li set dev dummy2 up"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
- rc=$?
- fi
- log_test $rc 0 "Prefix route with metric on link up"
-
- # explicitly check for metric changes on edge scenarios
- run_cmd "$IP addr flush dev dummy2"
- run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259"
- run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260"
- rc=$?
- fi
- log_test $rc 0 "Modify metric of .0/24 address"
-
- run_cmd "$IP addr flush dev dummy2"
- run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 260"
- rc=$?
- fi
- log_test $rc 0 "Set metric of address with peer route"
-
- run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.3 metric 261"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.3 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261"
- rc=$?
- fi
- log_test $rc 0 "Modify metric and peer address for peer route"
-
- $IP li del dummy1
- $IP li del dummy2
- cleanup
-}
-
-ipv4_route_metrics_test()
-{
- local rc
-
- echo
- echo "IPv4 route add / append tests"
-
- route_setup
-
- run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 mtu 1400"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.111.0/24 via 172.16.101.2 dev veth1 mtu 1400"
- rc=$?
- fi
- log_test $rc 0 "Single path route with mtu metric"
-
-
- run_cmd "$IP ro add 172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
- rc=$?
- if [ $rc -eq 0 ]; then
- check_route "172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
- rc=$?
- fi
- log_test $rc 0 "Multipath route with mtu metric"
-
- $IP ro add 172.16.104.0/24 via 172.16.101.2 mtu 1300
- run_cmd "ip netns exec ns1 ping -w1 -c1 -s 1500 172.16.104.1"
- log_test $? 0 "Using route with mtu metric"
-
- run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 congctl lock foo"
- log_test $? 2 "Invalid metric (fails metric_convert)"
-
- route_cleanup
-}
-
-ipv4_route_v6_gw_test()
-{
- local rc
-
- echo
- echo "IPv4 route with IPv6 gateway tests"
-
- route_setup
- sleep 2
-
- #
- # single path route
- #
- run_cmd "$IP ro add 172.16.104.0/24 via inet6 2001:db8:101::2"
- rc=$?
- log_test $rc 0 "Single path route with IPv6 gateway"
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 via inet6 2001:db8:101::2 dev veth1"
- fi
-
- run_cmd "ip netns exec ns1 ping -w1 -c1 172.16.104.1"
- log_test $rc 0 "Single path route with IPv6 gateway - ping"
-
- run_cmd "$IP ro del 172.16.104.0/24 via inet6 2001:db8:101::2"
- rc=$?
- log_test $rc 0 "Single path route delete"
- if [ $rc -eq 0 ]; then
- check_route "172.16.112.0/24"
- fi
-
- #
- # multipath - v6 then v4
- #
- run_cmd "$IP ro add 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
- rc=$?
- log_test $rc 0 "Multipath route add - v6 nexthop then v4"
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
- fi
-
- run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
- log_test $? 2 " Multipath route delete - nexthops in wrong order"
-
- run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
- log_test $? 0 " Multipath route delete exact match"
-
- #
- # multipath - v4 then v6
- #
- run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
- rc=$?
- log_test $rc 0 "Multipath route add - v4 nexthop then v6"
- if [ $rc -eq 0 ]; then
- check_route "172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 weight 1 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1"
- fi
-
- run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
- log_test $? 2 " Multipath route delete - nexthops in wrong order"
-
- run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
- log_test $? 0 " Multipath route delete exact match"
-
- route_cleanup
-}
-
-################################################################################
-# usage
-
-usage()
-{
- cat <<EOF
-usage: ${0##*/} OPTS
-
- -t <test> Test(s) to run (default: all)
- (options: $TESTS)
- -p Pause on fail
- -P Pause after each test before cleanup
- -v verbose mode (show commands and output)
-EOF
-}
-
-################################################################################
-# main
-
-while getopts :t:pPhv o
-do
- case $o in
- t) TESTS=$OPTARG;;
- p) PAUSE_ON_FAIL=yes;;
- P) PAUSE=yes;;
- v) VERBOSE=$(($VERBOSE + 1));;
- h) usage; exit 0;;
- *) usage; exit 1;;
- esac
-done
-
-PEER_CMD="ip netns exec ${PEER_NS}"
-
-# make sure we don't pause twice
-[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
-
-if [ "$(id -u)" -ne 0 ];then
- echo "SKIP: Need root privileges"
- exit $ksft_skip;
-fi
-
-if [ ! -x "$(command -v ip)" ]; then
- echo "SKIP: Could not run test without ip tool"
- exit $ksft_skip
-fi
-
-ip route help 2>&1 | grep -q fibmatch
-if [ $? -ne 0 ]; then
- echo "SKIP: iproute2 too old, missing fibmatch"
- exit $ksft_skip
-fi
-
-# start clean
-cleanup &> /dev/null
-
-for t in $TESTS
-do
- case $t in
- fib_unreg_test|unregister) fib_unreg_test;;
- fib_down_test|down) fib_down_test;;
- fib_carrier_test|carrier) fib_carrier_test;;
- fib_rp_filter_test|rp_filter) fib_rp_filter_test;;
- fib_nexthop_test|nexthop) fib_nexthop_test;;
- fib_suppress_test|suppress) fib_suppress_test;;
- ipv6_route_test|ipv6_rt) ipv6_route_test;;
- ipv4_route_test|ipv4_rt) ipv4_route_test;;
- ipv6_addr_metric) ipv6_addr_metric_test;;
- ipv4_addr_metric) ipv4_addr_metric_test;;
- ipv6_route_metrics) ipv6_route_metrics_test;;
- ipv4_route_metrics) ipv4_route_metrics_test;;
- ipv4_route_v6_gw) ipv4_route_v6_gw_test;;
-
- help) echo "Test names: $TESTS"; exit 0;;
- esac
-done
-
-if [ "$TESTS" != "none" ]; then
- printf "\nTests passed: %3d\n" ${nsuccess}
- printf "Tests failed: %3d\n" ${nfail}
-fi
-
-exit $ret
--
2.35.1