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Commit 23306008 authored by Jakub Kicinski's avatar Jakub Kicinski
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Merge branch 'selftests-net-bridge-add-tests-for-igmpv3' 

Nikolay Aleksandrov says:

====================
selftests: net: bridge: add tests for IGMPv3

This set adds tests for the bridge's new IGMPv3 support. The tests use
precooked packets which are sent via mausezahn and the resulting state
after each test is checked for proper X,Y sets, (*,G) source list, source
list entry timers, (S,G) existence and flags, packet forwarding and
blocking, exclude group expiration and (*,G) auto-add. The first 3 patches
prepare the existing IGMPv2 tests, then patch 4 adds new helpers which are
used throughout the rest of the v3 tests.
The following new tests are added:
 - base case: IGMPv3 report 239.10.10.10 is_include (A)
 - include -> allow report
 - include -> is_include report
 - include -> is_exclude report
 - include -> to_exclude report
 - exclude -> allow report
 - exclude -> is_include report
 - exclude -> is_exclude report
 - exclude -> to_exclude report
 - include -> block report
 - exclude -> block report
 - exclude timeout (move to include + entry deletion)
 - S,G port entry automatic add to a *,G,exclude port

The variable names and set notation are the same as per RFC 3376,
for more information check RFC 3376 sections 4.2.15 and 6.4.1.
MLDv2 tests will be added by a separate patch-set.
====================

Link: https://lore.kernel.org/r/20201027185934.227040-1-razor@blackwall.orgSigned-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parents 043d2be2 414ea375
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tools/testing/selftests/net/forwarding/bridge_igmp.sh
View file @ 23306008
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
ALL_TESTS="reportleave_test"
ALL_TESTS="v2reportleave_test v3include_test v3inc_allow_test v3inc_is_include_test \
v3inc_is_exclude_test v3inc_to_exclude_test v3exc_allow_test v3exc_is_include_test \
v3exc_is_exclude_test v3exc_to_exclude_test v3inc_block_test v3exc_block_test \
v3exc_timeout_test v3star_ex_auto_add_test"
NUM_NETIFS=4
CHECK_TC="yes"
TEST_GROUP="239.10.10.10"
TEST_GROUP_MAC="01:00:5e:0a:0a:0a"
ALL_GROUP="224.0.0.1"
ALL_MAC="01:00:5e:00:00:01"
# IGMPv3 is_in report: grp 239.10.10.10 is_include 192.0.2.1,192.0.2.2,192.0.2.3
MZPKT_IS_INC="22:00:9d:de:00:00:00:01:01:00:00:03:ef:0a:0a:0a:c0:00:02:01:c0:00:02:02:c0:00:02:03"
# IGMPv3 is_in report: grp 239.10.10.10 is_include 192.0.2.10,192.0.2.11,192.0.2.12
MZPKT_IS_INC2="22:00:9d:c3:00:00:00:01:01:00:00:03:ef:0a:0a:0a:c0:00:02:0a:c0:00:02:0b:c0:00:02:0c"
# IGMPv3 is_in report: grp 239.10.10.10 is_include 192.0.2.20,192.0.2.30
MZPKT_IS_INC3="22:00:5f:b4:00:00:00:01:01:00:00:02:ef:0a:0a:0a:c0:00:02:14:c0:00:02:1e"
# IGMPv3 allow report: grp 239.10.10.10 allow 192.0.2.10,192.0.2.11,192.0.2.12
MZPKT_ALLOW="22:00:99:c3:00:00:00:01:05:00:00:03:ef:0a:0a:0a:c0:00:02:0a:c0:00:02:0b:c0:00:02:0c"
# IGMPv3 allow report: grp 239.10.10.10 allow 192.0.2.20,192.0.2.30
MZPKT_ALLOW2="22:00:5b:b4:00:00:00:01:05:00:00:02:ef:0a:0a:0a:c0:00:02:14:c0:00:02:1e"
# IGMPv3 is_ex report: grp 239.10.10.10 is_exclude 192.0.2.1,192.0.2.2,192.0.2.20,192.0.2.21
MZPKT_IS_EXC="22:00:da:b6:00:00:00:01:02:00:00:04:ef:0a:0a:0a:c0:00:02:01:c0:00:02:02:c0:00:02:14:c0:00:02:15"
# IGMPv3 is_ex report: grp 239.10.10.10 is_exclude 192.0.2.20,192.0.2.30
MZPKT_IS_EXC2="22:00:5e:b4:00:00:00:01:02:00:00:02:ef:0a:0a:0a:c0:00:02:14:c0:00:02:1e"
# IGMPv3 to_ex report: grp 239.10.10.10 to_exclude 192.0.2.1,192.0.2.20,192.0.2.30
MZPKT_TO_EXC="22:00:9a:b1:00:00:00:01:04:00:00:03:ef:0a:0a:0a:c0:00:02:01:c0:00:02:14:c0:00:02:1e"
# IGMPv3 block report: grp 239.10.10.10 block 192.0.2.1,192.0.2.20,192.0.2.30
MZPKT_BLOCK="22:00:98:b1:00:00:00:01:06:00:00:03:ef:0a:0a:0a:c0:00:02:01:c0:00:02:14:c0:00:02:1e"
source lib.sh
h1_create()
......@@ -83,18 +109,19 @@ cleanup()
mcast_packet_test()
{
local mac=$1
local ip=$2
local host1_if=$3
local host2_if=$4
local src_ip=$2
local ip=$3
local host1_if=$4
local host2_if=$5
local seen=0
# Add an ACL on `host2_if` which will tell us whether the packet
# was received by it or not.
tc qdisc add dev $host2_if ingress
tc filter add dev $host2_if ingress protocol ip pref 1 handle 101 \
flower dst_mac $mac action drop
flower ip_proto udp dst_mac $mac action drop
$MZ $host1_if -c 1 -p 64 -b $mac -B $ip -t udp "dp=4096,sp=2048" -q
$MZ $host1_if -c 1 -p 64 -b $mac -A $src_ip -B $ip -t udp "dp=4096,sp=2048" -q
sleep 1
tc -j -s filter show dev $host2_if ingress \
......@@ -110,7 +137,7 @@ mcast_packet_test()
return $seen
}
reportleave_test()
v2reportleave_test()
{
RET=0
ip address add dev $h2 $TEST_GROUP/32 autojoin
......@@ -118,12 +145,12 @@ reportleave_test()
sleep 5
bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
check_err $? "Report didn't create mdb entry for $TEST_GROUP"
check_err $? "IGMPv2 report didn't create mdb entry for $TEST_GROUP"
mcast_packet_test $TEST_GROUP_MAC $TEST_GROUP $h1 $h2
mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
check_fail $? "Traffic to $TEST_GROUP wasn't forwarded"
log_test "IGMP report $TEST_GROUP"
log_test "IGMPv2 report $TEST_GROUP"
RET=0
bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
......@@ -136,10 +163,491 @@ reportleave_test()
bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
check_fail $? "Leave didn't delete mdb entry for $TEST_GROUP"
mcast_packet_test $TEST_GROUP_MAC $TEST_GROUP $h1 $h2
mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
check_err $? "Traffic to $TEST_GROUP was forwarded without mdb entry"
log_test "IGMP leave $TEST_GROUP"
log_test "IGMPv2 leave $TEST_GROUP"
}
check_sg_entries()
{
local report=$1; shift
local slist=("$@")
local sarg=""
for src in "${slist[@]}"; do
sarg="${sarg} and .source_list[].address == \"$src\""
done
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and .source_list != null $sarg)" &>/dev/null
check_err $? "Wrong *,G entry source list after $report report"
for sgent in "${slist[@]}"; do
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and .src == \"$sgent\")" &>/dev/null
check_err $? "Missing S,G entry ($sgent, $TEST_GROUP)"
done
}
check_sg_fwding()
{
local should_fwd=$1; shift
local sources=("$@")
for src in "${sources[@]}"; do
local retval=0
mcast_packet_test $TEST_GROUP_MAC $src $TEST_GROUP $h2 $h1
retval=$?
if [ $should_fwd -eq 1 ]; then
check_fail $retval "Didn't forward traffic from S,G ($src, $TEST_GROUP)"
else
check_err $retval "Forwarded traffic for blocked S,G ($src, $TEST_GROUP)"
fi
done
}
check_sg_state()
{
local is_blocked=$1; shift
local sources=("$@")
local should_fail=1
if [ $is_blocked -eq 1 ]; then
should_fail=0
fi
for src in "${sources[@]}"; do
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and .source_list != null) |
.source_list[] |
select(.address == \"$src\") |
select(.timer == \"0.00\")" &>/dev/null
check_err_fail $should_fail $? "Entry $src has zero timer"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and .src == \"$src\" and \
.flags[] == \"blocked\")" &>/dev/null
check_err_fail $should_fail $? "Entry $src has blocked flag"
done
}
v3include_prepare()
{
local host1_if=$1
local mac=$2
local group=$3
local X=("192.0.2.1" "192.0.2.2" "192.0.2.3")
ip link set dev br0 type bridge mcast_igmp_version 3
check_err $? "Could not change bridge IGMP version to 3"
$MZ $host1_if -b $mac -c 1 -B $group -t ip "proto=2,p=$MZPKT_IS_INC" -q
sleep 1
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and .source_list != null)" &>/dev/null
check_err $? "Missing *,G entry with source list"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and .filter_mode == \"include\")" &>/dev/null
check_err $? "Wrong *,G entry filter mode"
check_sg_entries "is_include" "${X[@]}"
}
v3exclude_prepare()
{
local host1_if=$1
local mac=$2
local group=$3
local pkt=$4
local X=("192.0.2.1" "192.0.2.2")
local Y=("192.0.2.20" "192.0.2.21")
v3include_prepare $host1_if $mac $group
$MZ $host1_if -c 1 -b $mac -B $group -t ip "proto=2,p=$MZPKT_IS_EXC" -q
sleep 1
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and .filter_mode == \"exclude\")" &>/dev/null
check_err $? "Wrong *,G entry filter mode"
check_sg_entries "is_exclude" "${X[@]}" "${Y[@]}"
check_sg_state 0 "${X[@]}"
check_sg_state 1 "${Y[@]}"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and
.source_list[].address == \"192.0.2.3\")" &>/dev/null
check_fail $? "Wrong *,G entry source list, 192.0.2.3 entry still exists"
}
v3cleanup()
{
local port=$1
local group=$2
bridge mdb del dev br0 port $port grp $group
ip link set dev br0 type bridge mcast_igmp_version 2
}
v3include_test()
{
RET=0
local X=("192.0.2.1" "192.0.2.2" "192.0.2.3")
v3include_prepare $h1 $ALL_MAC $ALL_GROUP
check_sg_state 0 "${X[@]}"
check_sg_fwding 1 "${X[@]}"
check_sg_fwding 0 "192.0.2.100"
log_test "IGMPv3 report $TEST_GROUP is_include"
v3cleanup $swp1 $TEST_GROUP
}
v3inc_allow_test()
{
RET=0
local X=("192.0.2.10" "192.0.2.11" "192.0.2.12")
v3include_prepare $h1 $ALL_MAC $ALL_GROUP
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_ALLOW" -q
sleep 1
check_sg_entries "allow" "${X[@]}"
check_sg_state 0 "${X[@]}"
check_sg_fwding 1 "${X[@]}"
check_sg_fwding 0 "192.0.2.100"
log_test "IGMPv3 report $TEST_GROUP include -> allow"
v3cleanup $swp1 $TEST_GROUP
}
v3inc_is_include_test()
{
RET=0
local X=("192.0.2.10" "192.0.2.11" "192.0.2.12")
v3include_prepare $h1 $ALL_MAC $ALL_GROUP
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_INC2" -q
sleep 1
check_sg_entries "is_include" "${X[@]}"
check_sg_state 0 "${X[@]}"
check_sg_fwding 1 "${X[@]}"
check_sg_fwding 0 "192.0.2.100"
log_test "IGMPv3 report $TEST_GROUP include -> is_include"
v3cleanup $swp1 $TEST_GROUP
}
v3inc_is_exclude_test()
{
RET=0
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
check_sg_fwding 1 "${X[@]}" 192.0.2.100
check_sg_fwding 0 "${Y[@]}"
log_test "IGMPv3 report $TEST_GROUP include -> is_exclude"
v3cleanup $swp1 $TEST_GROUP
}
v3inc_to_exclude_test()
{
RET=0
local X=("192.0.2.1")
local Y=("192.0.2.20" "192.0.2.30")
v3include_prepare $h1 $ALL_MAC $ALL_GROUP
ip link set dev br0 type bridge mcast_last_member_interval 500
check_err $? "Could not change mcast_last_member_interval to 5s"
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_TO_EXC" -q
sleep 1
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and .filter_mode == \"exclude\")" &>/dev/null
check_err $? "Wrong *,G entry filter mode"
check_sg_entries "to_exclude" "${X[@]}" "${Y[@]}"
check_sg_state 0 "${X[@]}"
check_sg_state 1 "${Y[@]}"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and
.source_list[].address == \"192.0.2.2\")" &>/dev/null
check_fail $? "Wrong *,G entry source list, 192.0.2.2 entry still exists"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and
.source_list[].address == \"192.0.2.21\")" &>/dev/null
check_fail $? "Wrong *,G entry source list, 192.0.2.21 entry still exists"
check_sg_fwding 1 "${X[@]}" 192.0.2.100
check_sg_fwding 0 "${Y[@]}"
log_test "IGMPv3 report $TEST_GROUP include -> to_exclude"
ip link set dev br0 type bridge mcast_last_member_interval 100
v3cleanup $swp1 $TEST_GROUP
}
v3exc_allow_test()
{
RET=0
local X=("192.0.2.1" "192.0.2.2" "192.0.2.20" "192.0.2.30")
local Y=("192.0.2.21")
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_ALLOW2" -q
sleep 1
check_sg_entries "allow" "${X[@]}" "${Y[@]}"
check_sg_state 0 "${X[@]}"
check_sg_state 1 "${Y[@]}"
check_sg_fwding 1 "${X[@]}" 192.0.2.100
check_sg_fwding 0 "${Y[@]}"
log_test "IGMPv3 report $TEST_GROUP exclude -> allow"
v3cleanup $swp1 $TEST_GROUP
}
v3exc_is_include_test()
{
RET=0
local X=("192.0.2.1" "192.0.2.2" "192.0.2.20" "192.0.2.30")
local Y=("192.0.2.21")
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_INC3" -q
sleep 1
check_sg_entries "is_include" "${X[@]}" "${Y[@]}"
check_sg_state 0 "${X[@]}"
check_sg_state 1 "${Y[@]}"
check_sg_fwding 1 "${X[@]}" 192.0.2.100
check_sg_fwding 0 "${Y[@]}"
log_test "IGMPv3 report $TEST_GROUP exclude -> is_include"
v3cleanup $swp1 $TEST_GROUP
}
v3exc_is_exclude_test()
{
RET=0
local X=("192.0.2.30")
local Y=("192.0.2.20")
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_EXC2" -q
sleep 1
check_sg_entries "is_exclude" "${X[@]}" "${Y[@]}"
check_sg_state 0 "${X[@]}"
check_sg_state 1 "${Y[@]}"
check_sg_fwding 1 "${X[@]}" 192.0.2.100
check_sg_fwding 0 "${Y[@]}"
log_test "IGMPv3 report $TEST_GROUP exclude -> is_exclude"
v3cleanup $swp1 $TEST_GROUP
}
v3exc_to_exclude_test()
{
RET=0
local X=("192.0.2.1" "192.0.2.30")
local Y=("192.0.2.20")
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
ip link set dev br0 type bridge mcast_last_member_interval 500
check_err $? "Could not change mcast_last_member_interval to 5s"
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_TO_EXC" -q
sleep 1
check_sg_entries "to_exclude" "${X[@]}" "${Y[@]}"
check_sg_state 0 "${X[@]}"
check_sg_state 1 "${Y[@]}"
check_sg_fwding 1 "${X[@]}" 192.0.2.100
check_sg_fwding 0 "${Y[@]}"
log_test "IGMPv3 report $TEST_GROUP exclude -> to_exclude"
ip link set dev br0 type bridge mcast_last_member_interval 100
v3cleanup $swp1 $TEST_GROUP
}
v3inc_block_test()
{
RET=0
local X=("192.0.2.2" "192.0.2.3")
v3include_prepare $h1 $ALL_MAC $ALL_GROUP
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_BLOCK" -q
# make sure the lowered timers have expired (by default 2 seconds)
sleep 3
check_sg_entries "block" "${X[@]}"
check_sg_state 0 "${X[@]}"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and
.source_list[].address == \"192.0.2.1\")" &>/dev/null
check_fail $? "Wrong *,G entry source list, 192.0.2.1 entry still exists"
check_sg_fwding 1 "${X[@]}"
check_sg_fwding 0 "192.0.2.100"
log_test "IGMPv3 report $TEST_GROUP include -> block"
v3cleanup $swp1 $TEST_GROUP
}
v3exc_block_test()
{
RET=0
local X=("192.0.2.1" "192.0.2.2" "192.0.2.30")
local Y=("192.0.2.20" "192.0.2.21")
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
ip link set dev br0 type bridge mcast_last_member_interval 500
check_err $? "Could not change mcast_last_member_interval to 5s"
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_BLOCK" -q
sleep 1
check_sg_entries "block" "${X[@]}" "${Y[@]}"
check_sg_state 0 "${X[@]}"
check_sg_state 1 "${Y[@]}"
check_sg_fwding 1 "${X[@]}" 192.0.2.100
check_sg_fwding 0 "${Y[@]}"
log_test "IGMPv3 report $TEST_GROUP exclude -> block"
ip link set dev br0 type bridge mcast_last_member_interval 100
v3cleanup $swp1 $TEST_GROUP
}
v3exc_timeout_test()
{
RET=0
local X=("192.0.2.20" "192.0.2.30")
# GMI should be 3 seconds
ip link set dev br0 type bridge mcast_query_interval 100 mcast_query_response_interval 100
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
ip link set dev br0 type bridge mcast_query_interval 500 mcast_query_response_interval 500
$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_ALLOW2" -q
sleep 3
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and .filter_mode == \"include\")" &>/dev/null
check_err $? "Wrong *,G entry filter mode"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and
.source_list[].address == \"192.0.2.1\")" &>/dev/null
check_fail $? "Wrong *,G entry source list, 192.0.2.1 entry still exists"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and \
.source_list != null and
.source_list[].address == \"192.0.2.2\")" &>/dev/null
check_fail $? "Wrong *,G entry source list, 192.0.2.2 entry still exists"
check_sg_entries "allow" "${X[@]}"
check_sg_state 0 "${X[@]}"
check_sg_fwding 1 "${X[@]}"
check_sg_fwding 0 192.0.2.100
log_test "IGMPv3 group $TEST_GROUP exclude timeout"
ip link set dev br0 type bridge mcast_query_interval 12500 \
mcast_query_response_interval 1000
v3cleanup $swp1 $TEST_GROUP
}
v3star_ex_auto_add_test()
{
RET=0
v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
$MZ $h2 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_INC" -q
sleep 1
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and .src == \"192.0.2.3\" and \
.port == \"$swp1\")" &>/dev/null
check_err $? "S,G entry for *,G port doesn't exist"
bridge -j -d -s mdb show dev br0 \
| jq -e ".[].mdb[] | \
select(.grp == \"$TEST_GROUP\" and .src == \"192.0.2.3\" and \
.port == \"$swp1\" and \
.flags[] == \"added_by_star_ex\")" &>/dev/null
check_err $? "Auto-added S,G entry doesn't have added_by_star_ex flag"
check_sg_fwding 1 192.0.2.3
log_test "IGMPv3 S,G port entry automatic add to a *,G port"
v3cleanup $swp1 $TEST_GROUP
v3cleanup $swp2 $TEST_GROUP
}
trap cleanup EXIT
......
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