The branch stable/12 has been updated by kp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=5b893242760570495abb09974455ab32a8fd6b95
commit 5b893242760570495abb09974455ab32a8fd6b95
Author: Kristof Provost <k...@freebsd.org>
AuthorDate: 2020-03-10 06:28:45 +0000
Commit: Kristof Provost <k...@freebsd.org>
CommitDate: 2021-03-02 13:03:06 +0000
bridge test: spanning tree
Basic test case where we create a bridge loop, verify that we really are
looping and then enable spanning tree to resolve the loop.
Reviewed by: philip
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23959
(cherry picked from commit 6f0a65b080aac1b3144c7489b020b26b345d1a1b)
---
tests/sys/net/if_bridge_test.sh | 69 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 69 insertions(+)
diff --git a/tests/sys/net/if_bridge_test.sh b/tests/sys/net/if_bridge_test.sh
index c51321187018..afb260a86cc3 100755
--- a/tests/sys/net/if_bridge_test.sh
+++ b/tests/sys/net/if_bridge_test.sh
@@ -67,7 +67,76 @@ bridge_transmit_ipv4_unicast_cleanup()
vnet_cleanup
}
+atf_test_case "stp" "cleanup"
+stp_head()
+{
+ atf_set descr 'Spanning tree test'
+ atf_set require.user root
+ atf_set require.progs jq
+}
+
+stp_body()
+{
+ vnet_init
+
+ epair_one=$(vnet_mkepair)
+ epair_two=$(vnet_mkepair)
+ bridge_a=$(vnet_mkbridge)
+ bridge_b=$(vnet_mkbridge)
+
+ vnet_mkjail a ${bridge_a} ${epair_one}a ${epair_two}a
+ vnet_mkjail b ${bridge_b} ${epair_one}b ${epair_two}b
+
+ jexec a ifconfig ${bridge_a} up
+ jexec a ifconfig ${epair_one}a up
+ jexec a ifconfig ${epair_two}a up
+ jexec a ifconfig ${bridge_a} addm ${epair_one}a
+ jexec a ifconfig ${bridge_a} addm ${epair_two}a
+
+ jexec b ifconfig ${bridge_b} up
+ jexec b ifconfig ${epair_one}b up
+ jexec b ifconfig ${epair_two}b up
+ jexec b ifconfig ${bridge_b} addm ${epair_one}b
+ jexec b ifconfig ${bridge_b} addm ${epair_two}b
+
+ jexec a ifconfig ${bridge_a} 192.0.2.1/24
+
+ # Give the interfaces some time to come up and pass some traffic
+ sleep 5
+
+ # Confirm that there's looping traffic
+ nbr=$(jexec a netstat -I ${bridge_a} --libxo json \
+ | jq ".statistics.interface[0].\"received-packets\"")
+ if [ ${nbr} -lt 100 ]
+ then
+ atf_fail "Expected bridging loop, but found very few packets."
+ fi
+
+ # Enable spanning tree
+ jexec a ifconfig ${bridge_a} stp ${epair_one}a
+ jexec a ifconfig ${bridge_a} stp ${epair_two}a
+ jexec b ifconfig ${bridge_b} stp ${epair_one}b
+ jexec b ifconfig ${bridge_b} stp ${epair_two}b
+
+ # Give STP time to do its thing
+ sleep 5
+
+ a_discard=$(jexec a ifconfig ${bridge_a} | grep discarding)
+ b_discard=$(jexec b ifconfig ${bridge_b} | grep discarding)
+
+ if [ -z "${a_discard}" ] && [ -z "${b_discard}" ]
+ then
+ atf_fail "STP failed to detect bridging loop"
+ fi
+}
+
+stp_cleanup()
+{
+ vnet_cleanup
+}
+
atf_init_test_cases()
{
atf_add_test_case "bridge_transmit_ipv4_unicast"
+ atf_add_test_case "stp"
}
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