Date: Wed, 28 Jul 2021 20:07:26 GMT From: Kristof Provost <kp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 6e439506408d - main - bridge tests: test changing the bridge MTU Message-ID: <202107282007.16SK7QgI062514@gitrepo.freebsd.org>
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The branch main has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=6e439506408d36a663e666d35a340595539270a4 commit 6e439506408d36a663e666d35a340595539270a4 Author: Kristof Provost <kp@FreeBSD.org> AuthorDate: 2021-07-23 15:46:10 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2021-07-28 20:01:12 +0000 bridge tests: test changing the bridge MTU Changing the bridge MTU will now also change all of the member interface MTUs. Test this. Reviewed by: donner Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D31289 --- tests/sys/net/if_bridge_test.sh | 68 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) diff --git a/tests/sys/net/if_bridge_test.sh b/tests/sys/net/if_bridge_test.sh index b029d8d60419..da797f4fd39a 100755 --- a/tests/sys/net/if_bridge_test.sh +++ b/tests/sys/net/if_bridge_test.sh @@ -517,6 +517,73 @@ gif_cleanup() vnet_cleanup } +atf_test_case "mtu" "cleanup" +mtu_head() +{ + atf_set descr 'Bridge MTU changes' + atf_set require.user root +} + +get_mtu() +{ + intf=$1 + + ifconfig ${intf} ether | awk '$5 == "mtu" { print $6 }' +} + +check_mtu() +{ + intf=$1 + expected=$2 + + mtu=$(get_mtu $intf) + if [ $mtu -ne $expected ]; + then + atf_fail "Expected MTU of $expected on $intf but found $mtu" + fi +} + +mtu_body() +{ + vnet_init + + epair=$(vnet_mkepair) + gif=$(ifconfig gif create) + echo ${gif} >> created_interfaces.lst + bridge=$(vnet_mkbridge) + + atf_check -s exit:0 \ + ifconfig ${bridge} addm ${epair}a + # Can't add an interface with an MTU mismatch + atf_check -s exit:1 -e ignore \ + ifconfig ${bridge} addm ${gif} + + ifconfig ${gif} mtu 1500 + atf_check -s exit:0 \ + ifconfig ${bridge} addm ${gif} + + # Changing MTU changes it for all member interfaces + atf_check -s exit:0 \ + ifconfig ${bridge} mtu 2000 + + check_mtu ${bridge} 2000 + check_mtu ${gif} 2000 + check_mtu ${epair}a 2000 + + # Rejected MTUs mean none of the MTUs change + atf_check -s exit:1 -e ignore \ + ifconfig ${bridge} mtu 9000 + + check_mtu ${bridge} 2000 + check_mtu ${gif} 2000 + check_mtu ${epair}a 2000 +} + +mtu_cleanup() +{ + vnet_cleanup +} + atf_init_test_cases() { atf_add_test_case "bridge_transmit_ipv4_unicast" @@ -529,4 +596,5 @@ atf_init_test_cases() atf_add_test_case "mac_conflict" atf_add_test_case "stp_validation" atf_add_test_case "gif" + atf_add_test_case "mtu" }
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