The branch main has been updated by glebius: URL: https://cgit.FreeBSD.org/src/commit/?id=35caa56a329deb0d13aa48ea1a6f7c1d5ebdb073
commit 35caa56a329deb0d13aa48ea1a6f7c1d5ebdb073 Author: Gleb Smirnoff <[email protected]> AuthorDate: 2026-01-17 01:46:02 +0000 Commit: Gleb Smirnoff <[email protected]> CommitDate: 2026-01-17 04:09:02 +0000 tests/ipfw: add a test for ipfw(4) log rules that write to bpf(4) --- tests/sys/netpfil/ipfw/Makefile | 1 + tests/sys/netpfil/ipfw/log.sh | 95 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 96 insertions(+) diff --git a/tests/sys/netpfil/ipfw/Makefile b/tests/sys/netpfil/ipfw/Makefile index 92a8c9fdb2cd..cf68a0e2882a 100644 --- a/tests/sys/netpfil/ipfw/Makefile +++ b/tests/sys/netpfil/ipfw/Makefile @@ -4,6 +4,7 @@ TESTSDIR= ${TESTSBASE}/sys/netpfil/ipfw ATF_TESTS_SH+= fwd \ divert \ + log \ table ${PACKAGE}FILES+= fwd_inetd.conf diff --git a/tests/sys/netpfil/ipfw/log.sh b/tests/sys/netpfil/ipfw/log.sh new file mode 100755 index 000000000000..7df5c69e4219 --- /dev/null +++ b/tests/sys/netpfil/ipfw/log.sh @@ -0,0 +1,95 @@ +# SPDX-License-Identifier: BSD-2-Clause +# +# Copyright (c) 2026 Gleb Smirnoff <[email protected]> +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. + +. $(atf_get_srcdir)/../common/utils.subr + +atf_test_case "bpf" "cleanup" +bpf_head() +{ + atf_set descr 'Creates several rules with log and probes bpf taps' + atf_set require.user root +} + +bpf_body() +{ + firewall_init "ipfw" + + epair=$(vnet_mkepair) + vnet_mkjail alcatraz ${epair}b + ifconfig ${epair}a 192.0.2.0/31 up + jexec alcatraz ifconfig ${epair}b 192.0.2.1/31 up + + # Create a bunch of statically and auto numbered logging rules + rules="100 200 201" + for r in ${rules}; do + jexec alcatraz \ + ipfw add ${r} count log udp from any to any 10${r} + done + auto=$(jexec alcatraz ipfw add count log udp from any to any 10666 \ + | awk '{print $1}' | sed -Ee 's/^0+//') + + pids="" + for r in ${rules} ${auto}; do + jexec alcatraz tcpdump --immediate-mode -i ipfw${r} \ + -w ${PWD}/${r}.pcap -c 1 & + pids="${pids} $!" + done + + # wait for tcpdumps to attach, include netstat(1) header in ${count} + count=$(( $(echo ${rules} ${auto} | wc -w) + 1)) + while [ $(jexec alcatraz netstat -B | wc -l) -ne ${count} ]; do + sleep 0.01; + done + + for p in ${rules} 666; do + echo foo | nc -u 192.0.2.1 10${p} -w 0 + done + + for p in ${pids}; do + atf_check -s exit:0 sh -c "wait $pid; exit $?" + done + + # statically numbered taps + for p in ${rules}; do + atf_check -o match:"192.0.2.0.[0-9]+ > 192.0.2.1.10${p}: UDP" \ + -e match:"reading from file [a-zA-Z0-9/.]+${p}.pcap" \ + tcpdump -nr ${PWD}/${p}.pcap + done + + # autonumbered tap with 10666 port + atf_check -o match:"192.0.2.0.[0-9]+ > 192.0.2.1.10666: UDP" \ + -e match:"reading from file [a-zA-Z0-9/.]+${auto}.pcap" \ + tcpdump -nr ${PWD}/${auto}.pcap +} + +bpf_cleanup() +{ + firewall_cleanup $1 +} + +atf_init_test_cases() +{ + atf_add_test_case "bpf" +}
