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📄 CVE-2019-5597.py(2.22 KB)
📄 CVE-2019-5598.py(2.9 KB)
📄 Makefile(503 B)
📄 Makefile.depend(176 B)
📄 anchor.sh(2.04 KB)
📄 checksum.sh(2.51 KB)
📄 echo_inetd.conf(1.54 KB)
📄 forward.sh(4.85 KB)
📄 fragmentation.sh(4.1 KB)
📄 icmp.sh(2.51 KB)
📁 ioctl
📄 names.sh(1.78 KB)
📄 nat.sh(2.66 KB)
📄 pass_block.sh(5.1 KB)
📄 pfsync.sh(2.9 KB)
📄 rdr.sh(2.15 KB)
📄 route_to.sh(3.26 KB)
📄 set_skip.sh(3.18 KB)
📄 set_tos.sh(3.68 KB)
📄 src_track.sh(1.98 KB)
📄 synproxy.sh(2.68 KB)
📄 table.sh(4.18 KB)
📄 utils.subr(2.01 KB)

Editing: synproxy.sh

# $FreeBSD$
#
# SPDX-License-Identifier: BSD-2-Clause-FreeBSD
#
# 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 "synproxy" "cleanup"
synproxy_head()
{
	atf_set descr 'Basic synproxy test'
	atf_set require.user root
}

synproxy_body()
{
	pft_init

epair=$(vnet_mkepair)
	ifconfig ${epair}a 192.0.2.1/24 up
	route add -net 198.51.100.0/24 192.0.2.2

link=$(vnet_mkepair)

vnet_mkjail alcatraz ${epair}b ${link}a
	jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up
	jexec alcatraz ifconfig ${link}a 198.51.100.1/24 up
	jexec alcatraz sysctl net.inet.ip.forwarding=1

vnet_mkjail singsing ${link}b
	jexec singsing ifconfig ${link}b 198.51.100.2/24 up
	jexec singsing route add default 198.51.100.1

jexec singsing /usr/sbin/inetd $(atf_get_srcdir)/echo_inetd.conf

jexec alcatraz pfctl -e
	pft_set_rules alcatraz "set fail-policy return" \
		"scrub in all fragment reassemble" \
		"pass out quick on ${epair}b all no state allow-opts" \
		"pass in quick on ${epair}b proto tcp from any to any port 7 synproxy state" \
		"pass in quick on ${epair}b all no state"

# Sanity check, can we ping singing
	atf_check -s exit:0 -o ignore ping -c 1 198.51.100.2

# Check that we can talk to the singsing jail, after synproxying
	reply=$(echo ping | nc -N 198.51.100.2 7)
	if [ "${reply}" != "ping" ];
	then
		atf_fail "echo failed"
	fi
}

synproxy_cleanup()
{
	pft_cleanup
}

atf_init_test_cases()
{
	atf_add_test_case "synproxy"
}

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Editing: synproxy.sh

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