diff mbox series

[net,v2,14/17] selftests: forwarding: tc_flower_l2_miss: Fix failing test with old libnet

Message ID 20230808141503.4060661-15-idosch@nvidia.com (mailing list archive)
State Accepted
Commit 21a72166abb9c9d13fe24a07cef0a0b9f1e331b0
Delegated to: Netdev Maintainers
Headers show
Series selftests: forwarding: Various fixes | expand

Checks

Context Check Description
netdev/series_format fail Series longer than 15 patches (and no cover letter)
netdev/tree_selection success Clearly marked for net
netdev/fixes_present success Fixes tag present in non-next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers warning 2 maintainers not CCed: shuah@kernel.org linux-kselftest@vger.kernel.org
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success net selftest script(s) already in Makefile
netdev/verify_fixes success Fixes tag looks correct
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 55 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Ido Schimmel Aug. 8, 2023, 2:15 p.m. UTC 
As explained in commit 8bcfb4ae4d97 ("selftests: forwarding: Fix failing
tests with old libnet"), old versions of libnet (used by mausezahn) do
not use the "SO_BINDTODEVICE" socket option. For IP unicast packets,
this can be solved by prefixing mausezahn invocations with "ip vrf
exec". However, IP multicast packets do not perform routing and simply
egress the bound device, which does not exist in this case.

Fix by specifying the source and destination MAC of the packet which
will cause mausezahn to use a packet socket instead of an IP socket.

Fixes: 8c33266ae26a ("selftests: forwarding: Add layer 2 miss test cases")
Reported-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Closes: https://lore.kernel.org/netdev/adc5e40d-d040-a65e-eb26-edf47dac5b02@alu.unizg.hr/
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
---
 .../selftests/net/forwarding/tc_flower_l2_miss.sh   | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/forwarding/tc_flower_l2_miss.sh b/tools/testing/selftests/net/forwarding/tc_flower_l2_miss.sh
index e22c2d28b6eb..20a7cb7222b8 100755
--- a/tools/testing/selftests/net/forwarding/tc_flower_l2_miss.sh
+++ b/tools/testing/selftests/net/forwarding/tc_flower_l2_miss.sh
@@ -127,6 +127,7 @@  test_l2_miss_multicast_common()
 	local proto=$1; shift
 	local sip=$1; shift
 	local dip=$1; shift
+	local dmac=$1; shift
 	local mode=$1; shift
 	local name=$1; shift
 
@@ -142,7 +143,7 @@  test_l2_miss_multicast_common()
 	   action pass
 
 	# Before adding MDB entry.
-	$MZ $mode $h1 -t ip -A $sip -B $dip -c 1 -p 100 -q
+	$MZ $mode $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
 
 	tc_check_packets "dev $swp2 egress" 101 1
 	check_err $? "Unregistered multicast filter was not hit before adding MDB entry"
@@ -153,7 +154,7 @@  test_l2_miss_multicast_common()
 	# Adding MDB entry.
 	bridge mdb replace dev br1 port $swp2 grp $dip permanent
 
-	$MZ $mode $h1 -t ip -A $sip -B $dip -c 1 -p 100 -q
+	$MZ $mode $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
 
 	tc_check_packets "dev $swp2 egress" 101 1
 	check_err $? "Unregistered multicast filter was hit after adding MDB entry"
@@ -164,7 +165,7 @@  test_l2_miss_multicast_common()
 	# Deleting MDB entry.
 	bridge mdb del dev br1 port $swp2 grp $dip
 
-	$MZ $mode $h1 -t ip -A $sip -B $dip -c 1 -p 100 -q
+	$MZ $mode $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
 
 	tc_check_packets "dev $swp2 egress" 101 2
 	check_err $? "Unregistered multicast filter was not hit after deleting MDB entry"
@@ -183,10 +184,11 @@  test_l2_miss_multicast_ipv4()
 	local proto="ipv4"
 	local sip=192.0.2.1
 	local dip=239.1.1.1
+	local dmac=01:00:5e:01:01:01
 	local mode="-4"
 	local name="IPv4"
 
-	test_l2_miss_multicast_common $proto $sip $dip $mode $name
+	test_l2_miss_multicast_common $proto $sip $dip $dmac $mode $name
 }
 
 test_l2_miss_multicast_ipv6()
@@ -194,10 +196,11 @@  test_l2_miss_multicast_ipv6()
 	local proto="ipv6"
 	local sip=2001:db8:1::1
 	local dip=ff0e::1
+	local dmac=33:33:00:00:00:01
 	local mode="-6"
 	local name="IPv6"
 
-	test_l2_miss_multicast_common $proto $sip $dip $mode $name
+	test_l2_miss_multicast_common $proto $sip $dip $dmac $mode $name
 }
 
 test_l2_miss_multicast()