git: 8e2cb3da6f0e - stable/12 - netpfil tests: Add forward test for the three firewalls

[Kristof Provost]

The branch stable/12 has been updated by kp:

URL: https://cgit.FreeBSD.org/src/commit/?id=8e2cb3da6f0eba413c465826ee9ebcdcac2ca601

commit 8e2cb3da6f0eba413c465826ee9ebcdcac2ca601
Author:     Kristof Provost <kp at FreeBSD.org>
AuthorDate: 2019-08-23 12:11:46 +0000
Commit:     Kristof Provost <kp at FreeBSD.org>
CommitDate: 2021-09-14 08:29:25 +0000

    netpfil tests: Add forward test for the three firewalls
    
    Submitted by:   Ahsan Barkati
    Reviewed by:    kp
    Sponsored by:   Google, Inc. (GSoC 2019)
    Differential Revision:  https://reviews.freebsd.org/D21321
    
    (cherry picked from commit 39cae0d5ed570804b4e689946f131447597122b8)
---
 tests/sys/netpfil/common/Makefile   |   1 +
 tests/sys/netpfil/common/forward.sh | 101 ++++++++++++++++++++++++++++++++++++
 2 files changed, 102 insertions(+)

diff --git a/tests/sys/netpfil/common/Makefile b/tests/sys/netpfil/common/Makefile
index 319333e8e6d6..c0e42b8f1286 100644
--- a/tests/sys/netpfil/common/Makefile
+++ b/tests/sys/netpfil/common/Makefile
@@ -5,6 +5,7 @@ PACKAGE=	tests
 TESTSDIR=	${TESTSBASE}/sys/netpfil/common
 
 ATF_TESTS_SH+=	\
+	forward \
 	fragments \
 	nat \
 	pass_block \
diff --git a/tests/sys/netpfil/common/forward.sh b/tests/sys/netpfil/common/forward.sh
new file mode 100755
index 000000000000..9f73bb139598
--- /dev/null
+++ b/tests/sys/netpfil/common/forward.sh
@@ -0,0 +1,101 @@
+#-
+# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+#
+# Copyright (c) 2019 Ahsan Barkati
+#
+# 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.
+#
+# $FreeBSD$
+#
+
+. $(atf_get_srcdir)/utils.subr
+. $(atf_get_srcdir)/runner.subr
+
+v4_head()
+{
+	atf_set descr 'Basic forwarding test'
+	atf_set require.user root
+	atf_set require.progs scapy
+}
+
+v4_body()
+{
+	firewall=$1
+	firewall_init $firewall
+
+	epair_send=$(vnet_mkepair)
+	ifconfig ${epair_send}a 192.0.2.1/24 up
+
+	epair_recv=$(vnet_mkepair)
+	ifconfig ${epair_recv}a up
+
+	vnet_mkjail iron ${epair_send}b ${epair_recv}b
+	jexec iron ifconfig ${epair_send}b 192.0.2.2/24 up
+	jexec iron ifconfig ${epair_recv}b 198.51.100.2/24 up
+	jexec iron sysctl net.inet.ip.forwarding=1
+	jexec iron arp -s 198.51.100.3 00:01:02:03:04:05
+	route add -net 198.51.100.0/24 192.0.2.2
+
+
+	atf_check -s exit:0 $(atf_get_srcdir)/pft_ping.py \
+		--sendif ${epair_send}a \
+		--to 198.51.100.3 \
+		--recvif ${epair_recv}a
+
+	firewall_config "iron" ${firewall} \
+		"pf" \
+			"block in" \
+		"ipfw" \
+			"ipfw -q add 100 deny all from any to any in" \
+		"ipf" \
+			"block in all" \
+
+	atf_check -s exit:1 $(atf_get_srcdir)/pft_ping.py \
+		--sendif ${epair_send}a \
+		--to 198.51.100.3 \
+		--recvif ${epair_recv}a
+
+	firewall_config "iron" ${firewall} \
+		"pf" \
+			"block out" \
+		"ipfw" \
+			"ipfw -q add 100 deny all from any to any out" \
+		"ipf" \
+			"block out all" \
+
+	atf_check -s exit:1 $(atf_get_srcdir)/pft_ping.py \
+		--sendif ${epair_send}a \
+		--to 198.51.100.3 \
+		--recv ${epair_recv}a
+}
+
+v4_cleanup()
+{
+	firewall=$1
+	firewall_cleanup $firewall
+}
+
+setup_tests \
+		v4 \
+			pf \
+			ipfw \
+			ipf