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bridge tests: Ensure that bridges in different jails get different MAC addresses

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We used to have a problem where bridges created in different vnet jails
would end up having the same mac address. This is now fixed by
including the jail name as a seed for the mac address generation, but we
should verify that it doesn't regress.
This commit is contained in:
Kristof Provost 2020-04-19 16:30:49 +00:00
parent 98582ce381
commit 2885ae0c3c
1 changed files with 39 additions and 0 deletions
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39
tests/sys/net/if_bridge_test.sh
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@ -271,6 +271,44 @@ delete_with_members_cleanup()
vnet_cleanup
}
atf_test_case "mac_conflict" "cleanup"
mac_conflict_head()
{
atf_set descr 'Ensure that bridges in different jails get different mac addresses'
atf_set require.user root
}
mac_conflict_body()
{
vnet_init
epair=$(vnet_mkepair)
# Ensure the bridge module is loaded so jails can use it.
tmpbridge=$(vnet_mkbridge)
vnet_mkjail bridge_mac_conflict_one ${epair}a
vnet_mkjail bridge_mac_conflict_two ${epair}b
jexec bridge_mac_conflict_one ifconfig bridge create
jexec bridge_mac_conflict_one ifconfig bridge0 192.0.2.1/24 up \
addm ${epair}a
jexec bridge_mac_conflict_one ifconfig ${epair}a up
jexec bridge_mac_conflict_two ifconfig bridge create
jexec bridge_mac_conflict_two ifconfig bridge0 192.0.2.2/24 up \
addm ${epair}b
jexec bridge_mac_conflict_two ifconfig ${epair}b up
atf_check -s exit:0 -o ignore \
jexec bridge_mac_conflict_one ping -c 3 192.0.2.2
}
mac_conflict_cleanup()
{
vnet_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "bridge_transmit_ipv4_unicast"
@ -278,4 +316,5 @@ atf_init_test_cases()
atf_add_test_case "static"
atf_add_test_case "span"
atf_add_test_case "delete_with_members"
atf_add_test_case "mac_conflict"
}