pf tests: basic SCTP connection test

pf can now inspect SCTP. Check that we can set up a connection.
IPv4 and IPv6 tests.

MFC after:	3 weeks
Sponsored by:	Orange Business Services
Differential Revision:	https://reviews.freebsd.org/D40863
This commit is contained in:
Kristof Provost 2023-04-27 11:13:40 +02:00
parent 010ee43f56
commit 9536347379
2 changed files with 191 additions and 0 deletions

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@ -31,6 +31,7 @@ ATF_TESTS_SH+= altq \
rules_counter \
scrub_compat \
scrub_pass \
sctp \
set_skip \
set_tos \
src_track \

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@ -0,0 +1,190 @@
# $FreeBSD$
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# Copyright © 2023 Orange Business Services
#
# 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.
. $(atf_get_srcdir)/utils.subr
sctp_init()
{
pft_init
if ! kldstat -q -m sctp; then
atf_skip "This test requires SCTP"
fi
}
atf_test_case "basic_v4" "cleanup"
basic_v4_head()
{
atf_set descr 'Basic SCTP connection over IPv4 passthrough'
atf_set require.user root
}
basic_v4_body()
{
sctp_init
j="sctp:basic_v4"
epair=$(vnet_mkepair)
vnet_mkjail ${j}a ${epair}a
vnet_mkjail ${j}b ${epair}b
jexec ${j}a ifconfig ${epair}a 192.0.2.1/24 up
jexec ${j}b ifconfig ${epair}b 192.0.2.2/24 up
# Sanity check
atf_check -s exit:0 -o ignore \
jexec ${j}a ping -c 1 192.0.2.2
jexec ${j}a pfctl -e
pft_set_rules ${j}a \
"block" \
"pass in proto sctp to port 1234"
echo "foo" | jexec ${j}a nc --sctp -N -l 1234 &
# Wait for the server to start
sleep 1
out=$(jexec ${j}b nc --sctp -N -w 3 192.0.2.1 1234)
if [ "$out" != "foo" ]; then
atf_fail "SCTP connection failed"
fi
# Now with scrub rules present, so normalization is done
pft_set_rules ${j}a \
"scrub on ${j}a" \
"block" \
"pass in proto sctp to port 1234"
echo "foo" | jexec ${j}a nc --sctp -N -l 1234 &
sleep 1
out=$(jexec ${j}b nc --sctp -N -w 3 192.0.2.1 1234)
if [ "$out" != "foo" ]; then
atf_fail "SCTP connection failed"
fi
# Now fail with a blocked port
echo "foo" | jexec ${j}a nc --sctp -N -l 1235 &
sleep 1
out=$(jexec ${j}b nc --sctp -N -w 3 192.0.2.1 1235)
if [ "$out" == "foo" ]; then
atf_fail "SCTP port block failed"
fi
# Now fail with a blocked port but passing source port
out=$(jexec ${j}b nc --sctp -N -w 3 -p 1234 192.0.2.1 1235)
if [ "$out" == "foo" ]; then
atf_fail "SCTP port block failed"
fi
}
basic_v4_cleanup()
{
pft_cleanup
}
atf_test_case "basic_v6" "cleanup"
basic_v6_head()
{
atf_set descr 'Basic SCTP connection over IPv6'
atf_set require.user root
}
basic_v6_body()
{
sctp_init
j="sctp:basic_v6"
epair=$(vnet_mkepair)
vnet_mkjail ${j}a ${epair}a
vnet_mkjail ${j}b ${epair}b
jexec ${j}a ifconfig ${epair}a inet6 2001:db8::a/64 up no_dad
jexec ${j}b ifconfig ${epair}b inet6 2001:db8::b/64 up no_dad
# Sanity check
atf_check -s exit:0 -o ignore \
jexec ${j}a ping -6 -c 1 2001:db8::b
jexec ${j}a pfctl -e
pft_set_rules ${j}a \
"block proto sctp" \
"pass in proto sctp to port 1234"
echo "foo" | jexec ${j}a nc -6 --sctp -N -l 1234 &
# Wait for the server to start
sleep 1
out=$(jexec ${j}b nc --sctp -N -w 3 2001:db8::a 1234)
if [ "$out" != "foo" ]; then
atf_fail "SCTP connection failed"
fi
# Now with scrub rules present, so normalization is done
pft_set_rules ${j}a \
"scrub on ${j}a" \
"block proto sctp" \
"pass in proto sctp to port 1234"
echo "foo" | jexec ${j}a nc -6 --sctp -N -l 1234 &
sleep 1
out=$(jexec ${j}b nc --sctp -N -w 3 2001:db8::a 1234)
if [ "$out" != "foo" ]; then
atf_fail "SCTP connection failed"
fi
# Now fail with a blocked port
echo "foo" | jexec ${j}a nc -6 --sctp -N -l 1235 &
sleep 1
out=$(jexec ${j}b nc --sctp -N -w 3 2001:db8::a 1235)
if [ "$out" == "foo" ]; then
atf_fail "SCTP port block failed"
fi
# Now fail with a blocked port but passing source port
out=$(jexec ${j}b nc --sctp -N -w 3 -p 1234 2001:db8::a 1235)
if [ "$out" == "foo" ]; then
atf_fail "SCTP port block failed"
fi
}
basic_v6_cleanup()
{
pft_cleanup
}
atf_init_test_cases()
{
atf_add_test_case "basic_v4"
atf_add_test_case "basic_v6"
}