selftests: forwarding: Add libs for gretap mirror testing
To simplify implementation of mirror-to-gretap tests, extend lib.sh with several new functions that might potentially be useful more broadly (although right now the mirroring tests will be the only client). Also add mirror_lib.sh with code useful for mirroring tests, mirror_gre_lib.sh with code specifically useful for mirror-to-gretap tests, and mirror_gre_topo.sh that primes a given test with a good baseline topology that the test can then tweak to its liking. Signed-off-by: Petr Machata <petrm@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
6a26ef9bf4
commit
7d4cbae04f
4 changed files with 350 additions and 0 deletions
|
@ -321,6 +321,25 @@ simple_if_fini()
|
|||
vrf_destroy $vrf_name
|
||||
}
|
||||
|
||||
tunnel_create()
|
||||
{
|
||||
local name=$1; shift
|
||||
local type=$1; shift
|
||||
local local=$1; shift
|
||||
local remote=$1; shift
|
||||
|
||||
ip link add name $name type $type \
|
||||
local $local remote $remote "$@"
|
||||
ip link set dev $name up
|
||||
}
|
||||
|
||||
tunnel_destroy()
|
||||
{
|
||||
local name=$1; shift
|
||||
|
||||
ip link del dev $name
|
||||
}
|
||||
|
||||
master_name_get()
|
||||
{
|
||||
local if_name=$1
|
||||
|
@ -335,6 +354,15 @@ link_stats_tx_packets_get()
|
|||
ip -j -s link show dev $if_name | jq '.[]["stats64"]["tx"]["packets"]'
|
||||
}
|
||||
|
||||
tc_rule_stats_get()
|
||||
{
|
||||
local dev=$1; shift
|
||||
local pref=$1; shift
|
||||
|
||||
tc -j -s filter show dev $dev ingress pref $pref |
|
||||
jq '.[1].options.actions[].stats.packets'
|
||||
}
|
||||
|
||||
mac_get()
|
||||
{
|
||||
local if_name=$1
|
||||
|
@ -381,6 +409,74 @@ tc_offload_check()
|
|||
return 0
|
||||
}
|
||||
|
||||
slow_path_trap_install()
|
||||
{
|
||||
local dev=$1; shift
|
||||
local direction=$1; shift
|
||||
|
||||
if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
|
||||
# For slow-path testing, we need to install a trap to get to
|
||||
# slow path the packets that would otherwise be switched in HW.
|
||||
tc filter add dev $dev $direction pref 1 \
|
||||
flower skip_sw action trap
|
||||
fi
|
||||
}
|
||||
|
||||
slow_path_trap_uninstall()
|
||||
{
|
||||
local dev=$1; shift
|
||||
local direction=$1; shift
|
||||
|
||||
if [ "${tcflags/skip_hw}" != "$tcflags" ]; then
|
||||
tc filter del dev $dev $direction pref 1 flower skip_sw
|
||||
fi
|
||||
}
|
||||
|
||||
__icmp_capture_add_del()
|
||||
{
|
||||
local add_del=$1; shift
|
||||
local pref=$1; shift
|
||||
local vsuf=$1; shift
|
||||
local tundev=$1; shift
|
||||
local filter=$1; shift
|
||||
|
||||
tc filter $add_del dev "$tundev" ingress \
|
||||
proto ip$vsuf pref $pref \
|
||||
flower ip_proto icmp$vsuf $filter \
|
||||
action pass
|
||||
}
|
||||
|
||||
icmp_capture_install()
|
||||
{
|
||||
__icmp_capture_add_del add 100 "" "$@"
|
||||
}
|
||||
|
||||
icmp_capture_uninstall()
|
||||
{
|
||||
__icmp_capture_add_del del 100 "" "$@"
|
||||
}
|
||||
|
||||
icmp6_capture_install()
|
||||
{
|
||||
__icmp_capture_add_del add 100 v6 "$@"
|
||||
}
|
||||
|
||||
icmp6_capture_uninstall()
|
||||
{
|
||||
__icmp_capture_add_del del 100 v6 "$@"
|
||||
}
|
||||
|
||||
matchall_sink_create()
|
||||
{
|
||||
local dev=$1; shift
|
||||
|
||||
tc qdisc add dev $dev clsact
|
||||
tc filter add dev $dev ingress \
|
||||
pref 10000 \
|
||||
matchall \
|
||||
action drop
|
||||
}
|
||||
|
||||
##############################################################################
|
||||
# Tests
|
||||
|
||||
|
|
85
tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
Normal file
85
tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
Normal file
|
@ -0,0 +1,85 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
do_test_span_gre_dir_ips()
|
||||
{
|
||||
local expect=$1; shift
|
||||
local tundev=$1; shift
|
||||
local direction=$1; shift
|
||||
local ip1=$1; shift
|
||||
local ip2=$1; shift
|
||||
|
||||
icmp_capture_install h3-$tundev
|
||||
mirror_test v$h1 $ip1 $ip2 h3-$tundev 100 $expect
|
||||
mirror_test v$h2 $ip2 $ip1 h3-$tundev 100 $expect
|
||||
icmp_capture_uninstall h3-$tundev
|
||||
}
|
||||
|
||||
quick_test_span_gre_dir_ips()
|
||||
{
|
||||
do_test_span_gre_dir_ips 10 "$@"
|
||||
}
|
||||
|
||||
fail_test_span_gre_dir_ips()
|
||||
{
|
||||
do_test_span_gre_dir_ips 0 "$@"
|
||||
}
|
||||
|
||||
test_span_gre_dir_ips()
|
||||
{
|
||||
local tundev=$1; shift
|
||||
local direction=$1; shift
|
||||
local forward_type=$1; shift
|
||||
local backward_type=$1; shift
|
||||
local ip1=$1; shift
|
||||
local ip2=$1; shift
|
||||
|
||||
quick_test_span_gre_dir_ips "$tundev" "$direction" "$ip1" "$ip2"
|
||||
|
||||
icmp_capture_install h3-$tundev "type $forward_type"
|
||||
mirror_test v$h1 $ip1 $ip2 h3-$tundev 100 10
|
||||
icmp_capture_uninstall h3-$tundev
|
||||
|
||||
icmp_capture_install h3-$tundev "type $backward_type"
|
||||
mirror_test v$h2 $ip2 $ip1 h3-$tundev 100 10
|
||||
icmp_capture_uninstall h3-$tundev
|
||||
}
|
||||
|
||||
full_test_span_gre_dir_ips()
|
||||
{
|
||||
local tundev=$1; shift
|
||||
local direction=$1; shift
|
||||
local forward_type=$1; shift
|
||||
local backward_type=$1; shift
|
||||
local what=$1; shift
|
||||
local ip1=$1; shift
|
||||
local ip2=$1; shift
|
||||
|
||||
RET=0
|
||||
|
||||
mirror_install $swp1 $direction $tundev "matchall $tcflags"
|
||||
test_span_gre_dir_ips "$tundev" "$direction" "$forward_type" \
|
||||
"$backward_type" "$ip1" "$ip2"
|
||||
mirror_uninstall $swp1 $direction
|
||||
|
||||
log_test "$direction $what ($tcflags)"
|
||||
}
|
||||
|
||||
quick_test_span_gre_dir()
|
||||
{
|
||||
quick_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
|
||||
}
|
||||
|
||||
fail_test_span_gre_dir()
|
||||
{
|
||||
fail_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
|
||||
}
|
||||
|
||||
test_span_gre_dir()
|
||||
{
|
||||
test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
|
||||
}
|
||||
|
||||
full_test_span_gre_dir()
|
||||
{
|
||||
full_test_span_gre_dir_ips "$@" 192.0.2.1 192.0.2.2
|
||||
}
|
129
tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
Normal file
129
tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
Normal file
|
@ -0,0 +1,129 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
# This is the standard topology for testing mirroring to gretap and ip6gretap
|
||||
# netdevices. The tests that use it tweak it in one way or another--importantly,
|
||||
# $swp3 and $h3 need to have addresses set up.
|
||||
#
|
||||
# +---------------------+ +---------------------+
|
||||
# | H1 | | H2 |
|
||||
# | + $h1 | | $h2 + |
|
||||
# | | 192.0.2.1/28 | | 192.0.2.2/28 | |
|
||||
# +-----|---------------+ +---------------|-----+
|
||||
# | |
|
||||
# +-----|-------------------------------------------------------------|-----+
|
||||
# | SW o--> mirror | |
|
||||
# | +---|-------------------------------------------------------------|---+ |
|
||||
# | | + $swp1 BR $swp2 + | |
|
||||
# | +---------------------------------------------------------------------+ |
|
||||
# | |
|
||||
# | + $swp3 + gt6 (ip6gretap) + gt4 (gretap) |
|
||||
# | | : loc=2001:db8:2::1 : loc=192.0.2.129 |
|
||||
# | | : rem=2001:db8:2::2 : rem=192.0.2.130 |
|
||||
# | | : ttl=100 : ttl=100 |
|
||||
# | | : tos=inherit : tos=inherit |
|
||||
# | | : : |
|
||||
# +-----|---------------------:----------------------:----------------------+
|
||||
# | : :
|
||||
# +-----|---------------------:----------------------:----------------------+
|
||||
# | H3 + $h3 + h3-gt6 (ip6gretap) + h3-gt4 (gretap) |
|
||||
# | loc=2001:db8:2::2 loc=192.0.2.130 |
|
||||
# | rem=2001:db8:2::1 rem=192.0.2.129 |
|
||||
# | ttl=100 ttl=100 |
|
||||
# | tos=inherit tos=inherit |
|
||||
# | |
|
||||
# +-------------------------------------------------------------------------+
|
||||
|
||||
mirror_gre_topo_h1_create()
|
||||
{
|
||||
simple_if_init $h1 192.0.2.1/28
|
||||
}
|
||||
|
||||
mirror_gre_topo_h1_destroy()
|
||||
{
|
||||
simple_if_fini $h1 192.0.2.1/28
|
||||
}
|
||||
|
||||
mirror_gre_topo_h2_create()
|
||||
{
|
||||
simple_if_init $h2 192.0.2.2/28
|
||||
}
|
||||
|
||||
mirror_gre_topo_h2_destroy()
|
||||
{
|
||||
simple_if_fini $h2 192.0.2.2/28
|
||||
}
|
||||
|
||||
mirror_gre_topo_h3_create()
|
||||
{
|
||||
simple_if_init $h3
|
||||
|
||||
tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
|
||||
ip link set h3-gt4 vrf v$h3
|
||||
matchall_sink_create h3-gt4
|
||||
|
||||
tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
|
||||
ip link set h3-gt6 vrf v$h3
|
||||
matchall_sink_create h3-gt6
|
||||
}
|
||||
|
||||
mirror_gre_topo_h3_destroy()
|
||||
{
|
||||
tunnel_destroy h3-gt6
|
||||
tunnel_destroy h3-gt4
|
||||
|
||||
simple_if_fini $h3
|
||||
}
|
||||
|
||||
mirror_gre_topo_switch_create()
|
||||
{
|
||||
ip link set dev $swp3 up
|
||||
|
||||
ip link add name br1 type bridge vlan_filtering 1
|
||||
ip link set dev br1 up
|
||||
|
||||
ip link set dev $swp1 master br1
|
||||
ip link set dev $swp1 up
|
||||
|
||||
ip link set dev $swp2 master br1
|
||||
ip link set dev $swp2 up
|
||||
|
||||
tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
|
||||
ttl 100 tos inherit
|
||||
|
||||
tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
|
||||
ttl 100 tos inherit allow-localremote
|
||||
|
||||
tc qdisc add dev $swp1 clsact
|
||||
}
|
||||
|
||||
mirror_gre_topo_switch_destroy()
|
||||
{
|
||||
tc qdisc del dev $swp1 clsact
|
||||
|
||||
tunnel_destroy gt6
|
||||
tunnel_destroy gt4
|
||||
|
||||
ip link set dev $swp1 down
|
||||
ip link set dev $swp2 down
|
||||
ip link del dev br1
|
||||
|
||||
ip link set dev $swp3 down
|
||||
}
|
||||
|
||||
mirror_gre_topo_create()
|
||||
{
|
||||
mirror_gre_topo_h1_create
|
||||
mirror_gre_topo_h2_create
|
||||
mirror_gre_topo_h3_create
|
||||
|
||||
mirror_gre_topo_switch_create
|
||||
}
|
||||
|
||||
mirror_gre_topo_destroy()
|
||||
{
|
||||
mirror_gre_topo_switch_destroy
|
||||
|
||||
mirror_gre_topo_h3_destroy
|
||||
mirror_gre_topo_h2_destroy
|
||||
mirror_gre_topo_h1_destroy
|
||||
}
|
40
tools/testing/selftests/net/forwarding/mirror_lib.sh
Normal file
40
tools/testing/selftests/net/forwarding/mirror_lib.sh
Normal file
|
@ -0,0 +1,40 @@
|
|||
# SPDX-License-Identifier: GPL-2.0
|
||||
|
||||
mirror_install()
|
||||
{
|
||||
local from_dev=$1; shift
|
||||
local direction=$1; shift
|
||||
local to_dev=$1; shift
|
||||
local filter=$1; shift
|
||||
|
||||
tc filter add dev $from_dev $direction \
|
||||
pref 1000 $filter \
|
||||
action mirred egress mirror dev $to_dev
|
||||
}
|
||||
|
||||
mirror_uninstall()
|
||||
{
|
||||
local from_dev=$1; shift
|
||||
local direction=$1; shift
|
||||
|
||||
tc filter del dev $swp1 $direction pref 1000
|
||||
}
|
||||
|
||||
mirror_test()
|
||||
{
|
||||
local vrf_name=$1; shift
|
||||
local sip=$1; shift
|
||||
local dip=$1; shift
|
||||
local dev=$1; shift
|
||||
local pref=$1; shift
|
||||
local expect=$1; shift
|
||||
|
||||
local t0=$(tc_rule_stats_get $dev $pref)
|
||||
ip vrf exec $vrf_name \
|
||||
${PING} ${sip:+-I $sip} $dip -c 10 -i 0.1 -w 2 &> /dev/null
|
||||
local t1=$(tc_rule_stats_get $dev $pref)
|
||||
local delta=$((t1 - t0))
|
||||
# Tolerate a couple stray extra packets.
|
||||
((expect <= delta && delta <= expect + 2))
|
||||
check_err $? "Expected to capture $expect packets, got $delta."
|
||||
}
|
Loading…
Reference in a new issue