xref: /freebsd/tests/sys/netpfil/pf/set_skip.sh (revision 6a88e22728d285c4df17216515ce2b8d1e5a6835)

#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2018 Kristof Provost <kp@FreeBSD.org>
#
# 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)/utils.subr

atf_test_case "unset" "cleanup"
unset_head()
{
	atf_set descr 'Unset set skip test'
	atf_set require.user root
}

unset_body()
{
	pft_init

	vnet_mkjail alcatraz
	jexec alcatraz ifconfig lo0 127.0.0.1/8 up
	jexec alcatraz pfctl -e
	pft_set_rules alcatraz "set skip on lo0" \
		"block in proto icmp"

	echo "set skip"
	jexec alcatraz pfctl -v -sI

	jexec alcatraz ifconfig
	atf_check -s exit:0 -o ignore jexec alcatraz ping -c 1 127.0.0.1

	# Unset the skip on the group
	pft_set_rules noflush alcatraz \
	    "block in proto icmp"

	echo "No setskip"
	jexec alcatraz pfctl -v -sI

	# Do flush states
	jexec alcatraz pfctl -Fs

	# And now our ping is blocked
	atf_check -s exit:2 -o ignore jexec alcatraz ping -c 1 127.0.0.1

	jexec alcatraz pfctl -v -sI
}

unset_cleanup()
{
	pft_cleanup
}

atf_test_case "set_skip_group" "cleanup"
set_skip_group_head()
{
	atf_set descr 'Basic set skip test'
	atf_set require.user root
}

set_skip_group_body()
{
	# See PR 229241
	pft_init

	vnet_mkjail alcatraz
	jexec alcatraz ifconfig lo0 127.0.0.1/8 up
	jexec alcatraz ifconfig lo0 group foo
	jexec alcatraz pfctl -e
	pft_set_rules alcatraz "set skip on foo" \
		"block in proto icmp"

	echo "set skip"
	jexec alcatraz pfctl -v -sI

	jexec alcatraz ifconfig
	atf_check -s exit:0 -o ignore jexec alcatraz ping -c 1 127.0.0.1

	# Unset the skip on the group
	pft_set_rules noflush alcatraz \
	    "block in proto icmp"

	# Do flush states
	jexec alcatraz pfctl -Fs

	# And now our ping is blocked
	atf_check -s exit:2 -o ignore jexec alcatraz ping -c 1 127.0.0.1

	echo "No setskip"
	jexec alcatraz pfctl -v -sI
}

set_skip_group_cleanup()
{
	pft_cleanup
}

atf_test_case "set_skip_group_lo" "cleanup"
set_skip_group_lo_head()
{
	atf_set descr 'Basic set skip test, lo'
	atf_set require.user root
}

set_skip_group_lo_body()
{
	# See PR 229241
	pft_init

	vnet_mkjail alcatraz
	jexec alcatraz ifconfig lo0 127.0.0.1/8 up
	jexec alcatraz pfctl -e
	pft_set_rules alcatraz "set skip on lo" \
		"block on lo0"

	atf_check -s exit:0 -o ignore jexec alcatraz ping -c 1 127.0.0.1
	pft_set_rules noflush alcatraz "set skip on lo" \
		"block on lo0"
	atf_check -s exit:0 -o ignore jexec alcatraz ping -c 1 127.0.0.1
	jexec alcatraz pfctl -s rules
}

set_skip_group_lo_cleanup()
{
	pft_cleanup
}

atf_test_case "set_skip_dynamic" "cleanup"
set_skip_dynamic_head()
{
	atf_set descr "Cope with group changes"
	atf_set require.user root
}

set_skip_dynamic_body()
{
	pft_init

	set -x

	vnet_mkjail alcatraz
	jexec alcatraz pfctl -e
	pft_set_rules alcatraz "set skip on epair" \
		"block on ! lo"

	epair=$(vnet_mkepair)
	ifconfig ${epair}a 192.0.2.2/24 up
	vnet_ifmove ${epair}b alcatraz

	jexec alcatraz ifconfig ${epair}b 192.0.2.1/24 up

	atf_check -s exit:0 -o ignore jexec alcatraz ping -c 1 192.0.2.2
}

set_skip_dynamic_cleanup()
{
	pft_cleanup
}

atf_test_case "pr255852" "cleanup"
pr255852_head()
{
	atf_set descr "PR 255852"
	atf_set require.user root
}

pr255852_body()
{
	pft_init

	epair=$(vnet_mkepair)

	ifconfig ${epair}a 192.0.2.1/24 up

	vnet_mkjail alcatraz ${epair}b
	jexec alcatraz ifconfig lo0 127.0.0.1/8 up
	jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up

	# Sanity check
	atf_check -s exit:0 -o ignore ping -c 1 192.0.2.2

	jexec alcatraz pfctl -e
	pft_set_rules alcatraz "set skip on { lo0, epair }" \
		"block"
	jexec alcatraz pfctl -vsI

	# We're skipping on epair, so this should work
	atf_check -s exit:0 -o ignore ping -c 1 192.0.2.2

	# Note: flushing avoid the issue
	pft_set_rules noflush alcatraz "set skip on { lo0 }" \
		"block"

	jexec alcatraz pfctl -vsI

	# No longer skipping, so this should fail
	atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.2
}

pr255852_cleanup()
{
	pft_cleanup
}

atf_init_test_cases()
{
	atf_add_test_case "unset"
	atf_add_test_case "set_skip_group"
	atf_add_test_case "set_skip_group_lo"
	atf_add_test_case "set_skip_dynamic"
	atf_add_test_case "pr255852"
}