Date: Fri, 11 Aug 2023 12:13:39 GMT From: Kristof Provost <kp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: d77d4c6a0419 - stable/13 - pf tests: test SCTP pfsync Message-ID: <202308111213.37BCDdYa008810@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=d77d4c6a04192859dabee22ce49d8e115a20d45c commit d77d4c6a04192859dabee22ce49d8e115a20d45c Author: Kristof Provost <kp@FreeBSD.org> AuthorDate: 2023-06-07 09:55:06 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2023-08-11 12:13:10 +0000 pf tests: test SCTP pfsync Ensure that SCTP connections survive a failover to the backup pf instance. MFC after: 3 weeks Sponsored by: Orange Business Services Differential Revision: https://reviews.freebsd.org/D40869 (cherry picked from commit b7a9a5773a0fdf9b9c7839d79d76dbc6b69a6c4b) --- tests/sys/netpfil/pf/sctp.sh | 188 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 188 insertions(+) diff --git a/tests/sys/netpfil/pf/sctp.sh b/tests/sys/netpfil/pf/sctp.sh index 2c736017f9fa..ec131a6384cc 100644 --- a/tests/sys/netpfil/pf/sctp.sh +++ b/tests/sys/netpfil/pf/sctp.sh @@ -469,6 +469,193 @@ rdr_v4_cleanup() pft_cleanup } +atf_test_case "pfsync" "cleanup" +pfsync_head() +{ + atf_set descr 'Test pfsync-ing SCTP connections' + atf_set require.user root +} + +pfsync_body() +{ + # + Builds bellow topology and initiate an SCTP connection + # from client to server. + # + Tests that the connection remains open when we fail over from + # router one to router two. + # + # ┌──────┐ + # │client│ + # └───┬──┘ + # │ + # ┌───┴───┐ + # │bridge0│ + # └┬─────┬┘ + # │ │ + # ┌────────────────┴─┐ ┌─┴────────────────┐ + # │ one ├─┤ two │ + # └────────────────┬─┘ └─┬────────────────┘ + # │ │ + # ┌┴─────┴┐ + # │bridge1│ + # └───┬───┘ + # │ + # ┌───┴──┐ + # │server│ + # └──────┘ + + sctp_init + pfsynct_init + if ! kldstat -q -m carp + then + atf_skip "This test requires carp" + fi + + j="sctp:pfsync" + + tmp=`pwd` + + bridge0=$(vnet_mkbridge) + bridge1=$(vnet_mkbridge) + + epair_c=$(vnet_mkepair) + epair_one0=$(vnet_mkepair) + epair_two0=$(vnet_mkepair) + epair_sync=$(vnet_mkepair) + epair_one1=$(vnet_mkepair) + epair_two1=$(vnet_mkepair) + epair_srv=$(vnet_mkepair) + + ifconfig ${bridge0} addm ${epair_c}a addm ${epair_one0}a addm ${epair_two0}a + ifconfig ${epair_one0}a up + ifconfig ${epair_two0}a up + ifconfig ${epair_c}a up + ifconfig ${bridge0} up + + ifconfig ${bridge1} addm ${epair_srv}a addm ${epair_one1}a addm ${epair_two1}a + ifconfig ${epair_one1}a up + ifconfig ${epair_two1}a up + ifconfig ${epair_srv}a up + ifconfig ${bridge1} up + + vnet_mkjail ${j}c ${epair_c}b + jexec ${j}c ifconfig ${epair_c}b 192.0.2.2/24 up + jexec ${j}c route add default 192.0.2.1 + + vnet_mkjail ${j}one ${epair_one0}b ${epair_one1}b ${epair_sync}a + jexec ${j}one ifconfig ${epair_one0}b 192.0.2.3/24 up + jexec ${j}one ifconfig ${epair_one0}b \ + alias 192.0.2.1/32 vhid 1 pass 1234 + jexec ${j}one ifconfig ${epair_one1}b 198.51.100.3/24 up + jexec ${j}one ifconfig ${epair_one1}b \ + alias 198.51.100.2/32 vhid 2 pass 4321 + jexec ${j}one ifconfig ${epair_sync}a 203.0.113.1/24 up + jexec ${j}one ifconfig pfsync0 \ + syncdev ${epair_sync}a \ + maxupd 1 \ + up + jexec ${j}one sysctl net.inet.ip.forwarding=1 + + vnet_mkjail ${j}two ${epair_two0}b ${epair_two1}b ${epair_sync}b + jexec ${j}two ifconfig ${epair_two0}b 192.0.2.4/24 up + jexec ${j}two ifconfig ${epair_two0}b \ + alias 192.0.2.1/32 vhid 1 pass 1234 + jexec ${j}two ifconfig ${epair_two1}b 198.51.100.4/24 up + jexec ${j}two ifconfig ${epair_two1}b \ + alias 198.51.100.2/32 vhid 2 pass 4321 + jexec ${j}two ifconfig ${epair_sync}b 203.0.113.2/24 up + jexec ${j}two ifconfig pfsync0 \ + syncdev ${epair_sync}b \ + maxupd 1 \ + up + jexec ${j}two sysctl net.inet.ip.forwarding=1 + + vnet_mkjail ${j}srv ${epair_srv}b + jexec ${j}srv ifconfig ${epair_srv}b 198.51.100.1/24 up + jexec ${j}srv route add default 198.51.100.2 + + # Demote two, to avoid dealing with asymmetric routing + jexec ${j}two sysctl net.inet.carp.demotion=50 + + jexec ${j}one pfctl -e + pft_set_rules ${j}one \ + "block all" \ + "pass proto { icmp, pfsync, carp }" \ + "pass proto sctp to port 1234" \ + "pass proto tcp to port 1234" + + jexec ${j}two pfctl -e + pft_set_rules ${j}two \ + "block all" \ + "pass proto { icmp, pfsync, carp }" \ + "pass proto sctp to port 1234" \ + "pass proto tcp to port 1234" + + # Give carp time to get set up + sleep 2 + + # Sanity check + atf_check -s exit:0 -o ignore \ + jexec ${j}c ping -c 1 198.51.100.1 + + # Now start up an SCTP connection + touch ${tmp}/input + tail -F ${tmp}/input | jexec ${j}srv nc --sctp -l 1234 & + sleep 1 + + jexec ${j}c nc --sctp 198.51.100.1 1234 > ${tmp}/output & + echo "1" >> ${tmp}/input + + # Give time for the traffic to arrive + sleep 1 + line=$(tail -n -1 ${tmp}/output) + if [ "${line}" != "1" ]; + then + echo "Found ${line}" + cat ${tmp}/output + atf_fail "Initial SCTP connection failed" + fi + + # Verify that two has the connection too + state=$(jexec ${j}two pfctl -ss | grep sctp) + if [ -z "${state}" ]; + then + jexec ${j}two pfctl -ss + atf_fail "Failed to find SCTP state on secondary pfsync host" + fi + + # Now fail over (both carp IPs should switch here) + jexec ${j}one sysctl net.inet.carp.demotion=100 + + while ! jexec ${j}one ifconfig ${epair_one0}b | grep MASTER; + do + sleep 1 + done + while ! jexec ${j}one ifconfig ${epair_one1}b | grep MASTER; + do + sleep 1 + done + + # Sanity check + atf_check -s exit:0 -o ignore \ + jexec ${j}c ping -c 1 198.51.100.1 + + # And check that the connection is still live + echo "2" >> ${tmp}/input + sleep 1 + line=$(tail -n -1 ${tmp}/output) + if [ "${line}" != "2" ]; + then + echo "Found ${line}" + cat ${tmp}/output + atf_fail "SCTP failover failed" + fi +} + +pfsync_cleanup() +{ + pfsynct_cleanup +} + atf_init_test_cases() { atf_add_test_case "basic_v4" @@ -478,4 +665,5 @@ atf_init_test_cases() atf_add_test_case "nat_v4" atf_add_test_case "nat_v6" atf_add_test_case "rdr_v4" + atf_add_test_case "pfsync" }
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