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Commit 39333e31 authored by Hangbin Liu's avatar Hangbin Liu Committed by Jakub Kicinski
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selftests/net: convert fib_nexthops.sh to run it in unique namespace 

Here is the test result after conversion.

 ]# ./fib_nexthops.sh

 Basic functional tests
 ----------------------
 TEST: List with nothing defined                                     [ OK ]
 TEST: Nexthop get on non-existent id                                [ OK ]

 ...

 TEST: IPv6 resilient nexthop group torture test                     [ OK ]

 Tests passed: 234
 Tests failed:   0
Acked-by: default avatarDavid Ahern <dsahern@kernel.org>
Signed-off-by: default avatarHangbin Liu <liuhangbin@gmail.com>
Reviewed-by: default avatarIdo Schimmel <idosch@nvidia.com>
Tested-by: default avatarIdo Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20231213060856.4030084-10-liuhangbin@gmail.comSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent d2168ea7
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Showing with 69 additions and 73 deletions
tools/testing/selftests/net/fib_nexthops.sh
View file @ 39333e31
......@@ -14,6 +14,7 @@
# objects. Device reference counts and network namespace cleanup tested
# by use of network namespace for peer.
source lib.sh
ret=0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
......@@ -148,13 +149,7 @@ create_ns()
{
local n=${1}
ip netns del ${n} 2>/dev/null
set -e
ip netns add ${n}
ip netns set ${n} $((nsid++))
ip -netns ${n} addr add 127.0.0.1/8 dev lo
ip -netns ${n} link set lo up
ip netns exec ${n} sysctl -qw net.ipv4.ip_forward=1
ip netns exec ${n} sysctl -qw net.ipv4.fib_multipath_use_neigh=1
......@@ -173,12 +168,13 @@ setup()
{
cleanup
create_ns me
create_ns peer
create_ns remote
setup_ns me peer remote
create_ns $me
create_ns $peer
create_ns $remote
IP="ip -netns me"
BRIDGE="bridge -netns me"
IP="ip -netns $me"
BRIDGE="bridge -netns $me"
set -e
$IP li add veth1 type veth peer name veth2
$IP li set veth1 up
......@@ -190,24 +186,24 @@ setup()
$IP addr add 172.16.2.1/24 dev veth3
$IP -6 addr add 2001:db8:92::1/64 dev veth3 nodad
$IP li set veth2 netns peer up
ip -netns peer addr add 172.16.1.2/24 dev veth2
ip -netns peer -6 addr add 2001:db8:91::2/64 dev veth2 nodad
$IP li set veth2 netns $peer up
ip -netns $peer addr add 172.16.1.2/24 dev veth2
ip -netns $peer -6 addr add 2001:db8:91::2/64 dev veth2 nodad
$IP li set veth4 netns peer up
ip -netns peer addr add 172.16.2.2/24 dev veth4
ip -netns peer -6 addr add 2001:db8:92::2/64 dev veth4 nodad
$IP li set veth4 netns $peer up
ip -netns $peer addr add 172.16.2.2/24 dev veth4
ip -netns $peer -6 addr add 2001:db8:92::2/64 dev veth4 nodad
ip -netns remote li add veth5 type veth peer name veth6
ip -netns remote li set veth5 up
ip -netns remote addr add dev veth5 172.16.101.1/24
ip -netns remote -6 addr add dev veth5 2001:db8:101::1/64 nodad
ip -netns remote ro add 172.16.0.0/22 via 172.16.101.2
ip -netns remote -6 ro add 2001:db8:90::/40 via 2001:db8:101::2
ip -netns $remote li add veth5 type veth peer name veth6
ip -netns $remote li set veth5 up
ip -netns $remote addr add dev veth5 172.16.101.1/24
ip -netns $remote -6 addr add dev veth5 2001:db8:101::1/64 nodad
ip -netns $remote ro add 172.16.0.0/22 via 172.16.101.2
ip -netns $remote -6 ro add 2001:db8:90::/40 via 2001:db8:101::2
ip -netns remote li set veth6 netns peer up
ip -netns peer addr add dev veth6 172.16.101.2/24
ip -netns peer -6 addr add dev veth6 2001:db8:101::2/64 nodad
ip -netns $remote li set veth6 netns $peer up
ip -netns $peer addr add dev veth6 172.16.101.2/24
ip -netns $peer -6 addr add dev veth6 2001:db8:101::2/64 nodad
set +e
}
......@@ -215,7 +211,7 @@ cleanup()
{
local ns
for ns in me peer remote; do
for ns in $me $peer $remote; do
ip netns del ${ns} 2>/dev/null
done
}
......@@ -779,7 +775,7 @@ ipv6_grp_refs()
run_cmd "$IP route add 2001:db8:101::1/128 nhid 102"
# create per-cpu dsts through nh 100
run_cmd "ip netns exec me mausezahn -6 veth1.10 -B 2001:db8:101::1 -A 2001:db8:91::1 -c 5 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1"
run_cmd "ip netns exec $me mausezahn -6 veth1.10 -B 2001:db8:101::1 -A 2001:db8:91::1 -c 5 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1"
# remove nh 100 from the group to delete the route potentially leaving
# a stale per-cpu dst which holds a reference to the nexthop's net
......@@ -805,7 +801,7 @@ ipv6_grp_refs()
# if a reference was lost this command will hang because the net device
# cannot be removed
timeout -s KILL 5 ip netns exec me ip link del veth1.10 >/dev/null 2>&1
timeout -s KILL 5 ip netns exec $me ip link del veth1.10 >/dev/null 2>&1
# we can't cleanup if the command is hung trying to delete the netdev
if [ $? -eq 137 ]; then
......@@ -1012,13 +1008,13 @@ ipv6_fcnal_runtime()
log_test $? 0 "Route delete"
run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 0 "Ping with nexthop"
run_cmd "$IP nexthop add id 82 via 2001:db8:92::2 dev veth3"
run_cmd "$IP nexthop add id 122 group 81/82"
run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 0 "Ping - multipath"
#
......@@ -1026,26 +1022,26 @@ ipv6_fcnal_runtime()
#
run_cmd "$IP -6 nexthop add id 83 blackhole"
run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 83"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 2 "Ping - blackhole"
run_cmd "$IP nexthop replace id 83 via 2001:db8:91::2 dev veth1"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 0 "Ping - blackhole replaced with gateway"
run_cmd "$IP -6 nexthop replace id 83 blackhole"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 2 "Ping - gateway replaced by blackhole"
run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
if [ $? -eq 0 ]; then
run_cmd "$IP nexthop replace id 122 group 83"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 2 "Ping - group with blackhole"
run_cmd "$IP nexthop replace id 122 group 81/82"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 0 "Ping - group blackhole replaced with gateways"
else
log_test 2 0 "Ping - multipath failed"
......@@ -1128,15 +1124,15 @@ ipv6_fcnal_runtime()
# rpfilter and default route
$IP nexthop flush >/dev/null 2>&1
run_cmd "ip netns exec me ip6tables -t mangle -I PREROUTING 1 -m rpfilter --invert -j DROP"
run_cmd "ip netns exec $me ip6tables -t mangle -I PREROUTING 1 -m rpfilter --invert -j DROP"
run_cmd "$IP nexthop add id 91 via 2001:db8:91::2 dev veth1"
run_cmd "$IP nexthop add id 92 via 2001:db8:92::2 dev veth3"
run_cmd "$IP nexthop add id 93 group 91/92"
run_cmd "$IP -6 ro add default nhid 91"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 0 "Nexthop with default route and rpfilter"
run_cmd "$IP -6 ro replace default nhid 93"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
log_test $? 0 "Nexthop with multipath default route and rpfilter"
# TO-DO:
......@@ -1216,11 +1212,11 @@ ipv6_torture()
pid1=$!
ipv6_grp_replace_loop &
pid2=$!
ip netns exec me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
ip netns exec $me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
pid3=$!
ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
ip netns exec $me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
pid4=$!
ip netns exec me mausezahn -6 veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
ip netns exec $me mausezahn -6 veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
pid5=$!
sleep 300
......@@ -1270,11 +1266,11 @@ ipv6_res_torture()
pid1=$!
ipv6_res_grp_replace_loop &
pid2=$!
ip netns exec me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
ip netns exec $me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
pid3=$!
ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
ip netns exec $me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
pid4=$!
ip netns exec me mausezahn -6 veth1 \
ip netns exec $me mausezahn -6 veth1 \
-B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 \
-t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
pid5=$!
......@@ -1544,7 +1540,7 @@ ipv4_withv6_fcnal()
local lladdr
set -e
lladdr=$(get_linklocal veth2 peer)
lladdr=$(get_linklocal veth2 $peer)
run_cmd "$IP nexthop add id 11 via ${lladdr} dev veth1"
set +e
run_cmd "$IP ro add 172.16.101.1/32 nhid 11"
......@@ -1606,13 +1602,13 @@ ipv4_fcnal_runtime()
#
run_cmd "$IP nexthop replace id 21 via 172.16.1.2 dev veth1"
run_cmd "$IP ro replace 172.16.101.1/32 nhid 21"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "Basic ping"
run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
run_cmd "$IP nexthop add id 122 group 21/22"
run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "Ping - multipath"
run_cmd "$IP ro delete 172.16.101.1/32 nhid 122"
......@@ -1623,7 +1619,7 @@ ipv4_fcnal_runtime()
run_cmd "$IP nexthop add id 501 via 172.16.1.2 dev veth1"
run_cmd "$IP ro add default nhid 501"
run_cmd "$IP ro add default via 172.16.1.3 dev veth1 metric 20"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "Ping - multiple default routes, nh first"
# flip the order
......@@ -1632,7 +1628,7 @@ ipv4_fcnal_runtime()
run_cmd "$IP ro add default via 172.16.1.2 dev veth1 metric 20"
run_cmd "$IP nexthop replace id 501 via 172.16.1.3 dev veth1"
run_cmd "$IP ro add default nhid 501 metric 20"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "Ping - multiple default routes, nh second"
run_cmd "$IP nexthop delete nhid 501"
......@@ -1643,26 +1639,26 @@ ipv4_fcnal_runtime()
#
run_cmd "$IP nexthop add id 23 blackhole"
run_cmd "$IP ro replace 172.16.101.1/32 nhid 23"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 2 "Ping - blackhole"
run_cmd "$IP nexthop replace id 23 via 172.16.1.2 dev veth1"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "Ping - blackhole replaced with gateway"
run_cmd "$IP nexthop replace id 23 blackhole"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 2 "Ping - gateway replaced by blackhole"
run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
if [ $? -eq 0 ]; then
run_cmd "$IP nexthop replace id 122 group 23"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 2 "Ping - group with blackhole"
run_cmd "$IP nexthop replace id 122 group 21/22"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "Ping - group blackhole replaced with gateways"
else
log_test 2 0 "Ping - multipath failed"
......@@ -1685,11 +1681,11 @@ ipv4_fcnal_runtime()
# IPv4 with IPv6
#
set -e
lladdr=$(get_linklocal veth2 peer)
lladdr=$(get_linklocal veth2 $peer)
run_cmd "$IP nexthop add id 24 via ${lladdr} dev veth1"
set +e
run_cmd "$IP ro replace 172.16.101.1/32 nhid 24"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "IPv6 nexthop with IPv4 route"
$IP neigh sh | grep -q "${lladdr} dev veth1"
......@@ -1713,11 +1709,11 @@ ipv4_fcnal_runtime()
check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "IPv6 nexthop with IPv4 route"
run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "IPv4 route with IPv6 gateway"
$IP neigh sh | grep -q "${lladdr} dev veth1"
......@@ -1734,7 +1730,7 @@ ipv4_fcnal_runtime()
run_cmd "$IP ro del 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
run_cmd "$IP -4 ro add default via inet6 ${lladdr} dev veth1"
run_cmd "ip netns exec me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
log_test $? 0 "IPv4 default route with IPv6 gateway"
#
......@@ -1785,7 +1781,7 @@ sysctl_nexthop_compat_mode_check()
local sysctlname="net.ipv4.nexthop_compat_mode"
local lprefix=$1
IPE="ip netns exec me"
IPE="ip netns exec $me"
$IPE sysctl -q $sysctlname 2>&1 >/dev/null
if [ $? -ne 0 ]; then
......@@ -1804,7 +1800,7 @@ sysctl_nexthop_compat_mode_set()
local mode=$1
local lprefix=$2
IPE="ip netns exec me"
IPE="ip netns exec $me"
out=$($IPE sysctl -w $sysctlname=$mode)
log_test $? 0 "$lprefix set compat mode - $mode"
......@@ -1988,11 +1984,11 @@ ipv4_torture()
pid1=$!
ipv4_grp_replace_loop &
pid2=$!
ip netns exec me ping -f 172.16.101.1 >/dev/null 2>&1 &
ip netns exec $me ping -f 172.16.101.1 >/dev/null 2>&1 &
pid3=$!
ip netns exec me ping -f 172.16.101.2 >/dev/null 2>&1 &
ip netns exec $me ping -f 172.16.101.2 >/dev/null 2>&1 &
pid4=$!
ip netns exec me mausezahn veth1 -B 172.16.101.2 -A 172.16.1.1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
ip netns exec $me mausezahn veth1 -B 172.16.101.2 -A 172.16.1.1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
pid5=$!
sleep 300
......@@ -2042,11 +2038,11 @@ ipv4_res_torture()
pid1=$!
ipv4_res_grp_replace_loop &
pid2=$!
ip netns exec me ping -f 172.16.101.1 >/dev/null 2>&1 &
ip netns exec $me ping -f 172.16.101.1 >/dev/null 2>&1 &
pid3=$!
ip netns exec me ping -f 172.16.101.2 >/dev/null 2>&1 &
ip netns exec $me ping -f 172.16.101.2 >/dev/null 2>&1 &
pid4=$!
ip netns exec me mausezahn veth1 \
ip netns exec $me mausezahn veth1 \
-B 172.16.101.2 -A 172.16.1.1 -c 0 \
-t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
pid5=$!
......@@ -2081,10 +2077,10 @@ basic()
# create nh with linkdown device - fails
$IP li set veth1 up
ip -netns peer li set veth2 down
ip -netns $peer li set veth2 down
run_cmd "$IP nexthop add id 1 dev veth1"
log_test $? 2 "Nexthop with device that is linkdown"
ip -netns peer li set veth2 up
ip -netns $peer li set veth2 up
# device only
run_cmd "$IP nexthop add id 1 dev veth1"
......@@ -2465,7 +2461,7 @@ fi
for t in $TESTS
do
case $t in
none) IP="ip -netns peer"; setup; exit 0;;
none) IP="ip -netns $peer"; setup; exit 0;;
*) setup; $t; cleanup;;
esac
done
......
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