| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <20211026094225.1265320-9-idosch@idosch.org>
Date: Tue, 26 Oct 2021 12:42:24 +0300
From: Ido Schimmel <idosch@...sch.org>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, jiri@...dia.com,
petrm@...dia.com, danieller@...dia.com, mlxsw@...dia.com,
Ido Schimmel <idosch@...dia.com>
Subject: [PATCH net-next 8/9] selftests: Add an occupancy test for RIF MAC profiles
From: Danielle Ratson <danieller@...dia.com>
When all the RIF MAC profiles are in use, test that it is possible to
change the MAC of a netdev (i.e., a RIF) when its MAC profile is not
shared with other RIFs. Test that replacement fails when the MAC profile
is shared.
Signed-off-by: Danielle Ratson <danieller@...dia.com>
Signed-off-by: Ido Schimmel <idosch@...dia.com>
---
.../drivers/net/mlxsw/rif_mac_profiles_occ.sh | 117 ++++++++++++++++++
1 file changed, 117 insertions(+)
create mode 100755 tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh
new file mode 100755
index 000000000000..b513f64d9092
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+ rif_mac_profile_edit_test
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ h2=${NETIFS[p2]}
+
+ # Disable IPv6 on the two interfaces to avoid IPv6 link-local addresses
+ # being generated and RIFs being created
+ sysctl_set net.ipv6.conf.$h1.disable_ipv6 1
+ sysctl_set net.ipv6.conf.$h2.disable_ipv6 1
+
+ ip link set $h1 up
+ ip link set $h2 up
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip link set $h2 down
+ ip link set $h1 down
+
+ sysctl_restore net.ipv6.conf.$h2.disable_ipv6
+ sysctl_restore net.ipv6.conf.$h1.disable_ipv6
+
+ # Reload in order to clean all the RIFs and RIF MAC profiles created
+ devlink_reload
+}
+
+create_max_rif_mac_profiles()
+{
+ local count=$1; shift
+ local batch_file="$(mktemp)"
+
+ for ((i = 1; i <= count; i++)); do
+ vlan=$(( i*10 ))
+ m=$(( i*11 ))
+
+ cat >> $batch_file <<-EOF
+ link add link $h1 name $h1.$vlan \
+ address 00:$m:$m:$m:$m:$m type vlan id $vlan
+ address add 192.0.$m.1/24 dev $h1.$vlan
+ EOF
+ done
+
+ ip -b $batch_file &> /dev/null
+ rm -f $batch_file
+}
+
+rif_mac_profile_replacement_test()
+{
+ local h1_10_mac=$(mac_get $h1.10)
+
+ RET=0
+
+ ip link set $h1.10 address 00:12:34:56:78:99
+ check_err $?
+
+ log_test "RIF MAC profile replacement"
+
+ ip link set $h1.10 address $h1_10_mac
+}
+
+rif_mac_profile_shared_replacement_test()
+{
+ local count=$1; shift
+ local i=$((count + 1))
+ local vlan=$(( i*10 ))
+ local m=11
+
+ RET=0
+
+ # Create a VLAN netdevice that has the same MAC as the first one.
+ ip link add link $h1 name $h1.$vlan address 00:$m:$m:$m:$m:$m \
+ type vlan id $vlan
+ ip address add 192.0.$m.1/24 dev $h1.$vlan
+
+ # MAC replacement should fail because all the MAC profiles are in use
+ # and the profile is shared between multiple RIFs
+ m=$(( i*11 ))
+ ip link set $h1.$vlan address 00:$m:$m:$m:$m:$m &> /dev/null
+ check_fail $?
+
+ log_test "RIF MAC profile shared replacement"
+
+ ip link del dev $h1.$vlan
+}
+
+rif_mac_profile_edit_test()
+{
+ local count=$(devlink_resource_size_get rif_mac_profiles)
+
+ create_max_rif_mac_profiles $count
+
+ rif_mac_profile_replacement_test
+ rif_mac_profile_shared_replacement_test $count
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
--
2.31.1
Powered by blists - more mailing lists