# # SPDX-License-Identifier: BSD-2-Clause # # Copyright (c) 2021 The FreeBSD Foundation # # This software was developed by Mark Johnston under sponsorship # from the FreeBSD Foundation. # # 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. . $(atf_get_srcdir)/../common/vnet.subr atf_test_case "wg_basic" "cleanup" wg_basic_head() { atf_set descr 'Create a wg(4) tunnel over an epair and pass traffic between jails' atf_set require.user root } wg_basic_body() { local epair pri1 pri2 pub1 pub2 wg1 wg2 local endpoint1 endpoint2 tunnel1 tunnel2 kldload -n if_wg || atf_skip "This test requires if_wg and could not load it" pri1=$(wg genkey) pri2=$(wg genkey) endpoint1=192.168.2.1 endpoint2=192.168.2.2 tunnel1=169.254.0.1 tunnel2=169.254.0.2 epair=$(vnet_mkepair) vnet_init vnet_mkjail wgtest1 ${epair}a vnet_mkjail wgtest2 ${epair}b jexec wgtest1 ifconfig ${epair}a ${endpoint1}/24 up jexec wgtest2 ifconfig ${epair}b ${endpoint2}/24 up wg1=$(jexec wgtest1 ifconfig wg create) echo "$pri1" | jexec wgtest1 wg set $wg1 listen-port 12345 \ private-key /dev/stdin pub1=$(jexec wgtest1 wg show $wg1 public-key) wg2=$(jexec wgtest2 ifconfig wg create) echo "$pri2" | jexec wgtest2 wg set $wg2 listen-port 12345 \ private-key /dev/stdin pub2=$(jexec wgtest2 wg show $wg2 public-key) atf_check -s exit:0 -o ignore \ jexec wgtest1 wg set $wg1 peer "$pub2" \ endpoint ${endpoint2}:12345 allowed-ips ${tunnel2}/32 atf_check -s exit:0 \ jexec wgtest1 ifconfig $wg1 inet ${tunnel1}/24 up atf_check -s exit:0 -o ignore \ jexec wgtest2 wg set $wg2 peer "$pub1" \ endpoint ${endpoint1}:12345 allowed-ips ${tunnel1}/32 atf_check -s exit:0 \ jexec wgtest2 ifconfig $wg2 inet ${tunnel2}/24 up # Generous timeout since the handshake takes some time. atf_check -s exit:0 -o ignore jexec wgtest1 ping -c 1 -t 5 $tunnel2 atf_check -s exit:0 -o ignore jexec wgtest2 ping -c 1 $tunnel1 } wg_basic_cleanup() { vnet_cleanup } # The kernel is expected to silently ignore any attempt to add a peer with a # public key identical to the host's. atf_test_case "wg_key_peerdev_shared" "cleanup" wg_key_peerdev_shared_head() { atf_set descr 'Create a wg(4) interface with a shared pubkey between device and a peer' atf_set require.user root } wg_key_peerdev_shared_body() { local epair pri1 pub1 wg1 local endpoint1 tunnel1 kldload -n if_wg || atf_skip "This test requires if_wg and could not load it" pri1=$(wg genkey) endpoint1=192.168.2.1 tunnel1=169.254.0.1 vnet_mkjail wgtest1 wg1=$(jexec wgtest1 ifconfig wg create) echo "$pri1" | jexec wgtest1 wg set $wg1 listen-port 12345 \ private-key /dev/stdin pub1=$(jexec wgtest1 wg show $wg1 public-key) atf_check -s exit:0 \ jexec wgtest1 wg set ${wg1} peer "${pub1}" \ allowed-ips "${tunnel1}/32" atf_check -o empty jexec wgtest1 wg show ${wg1} peers } wg_key_peerdev_shared_cleanup() { vnet_cleanup } # When a wg(8) interface has a private key reassigned that corresponds to the # public key already on a peer, the kernel is expected to deconfigure the peer # to resolve the conflict. atf_test_case "wg_key_peerdev_makeshared" "cleanup" wg_key_peerdev_makeshared_head() { atf_set descr 'Create a wg(4) interface and assign peer key to device' atf_set require.progs wg } wg_key_peerdev_makeshared_body() { local epair pri1 pub1 pri2 wg1 wg2 local endpoint1 tunnel1 kldload -n if_wg || atf_skip "This test requires if_wg and could not load it" pri1=$(wg genkey) pri2=$(wg genkey) endpoint1=192.168.2.1 tunnel1=169.254.0.1 vnet_mkjail wgtest1 wg1=$(jexec wgtest1 ifconfig wg create) echo "$pri1" | jexec wgtest1 wg set $wg1 listen-port 12345 \ private-key /dev/stdin pub1=$(jexec wgtest1 wg show $wg1 public-key) wg2=$(jexec wgtest1 ifconfig wg create) echo "$pri2" | jexec wgtest1 wg set $wg2 listen-port 12345 \ private-key /dev/stdin atf_check -s exit:0 -o ignore \ jexec wgtest1 wg set ${wg2} peer "${pub1}" \ allowed-ips "${tunnel1}/32" atf_check -o not-empty jexec wgtest1 wg show ${wg2} peers jexec wgtest1 sh -c "echo '${pri1}' > pri1" atf_check -s exit:0 \ jexec wgtest1 wg set ${wg2} private-key pri1 atf_check -o empty jexec wgtest1 wg show ${wg2} peers } wg_key_peerdev_makeshared_cleanup() { vnet_cleanup } # The kernel is expected to create the wg socket in the jail context that the # wg interface was created in, even if the interface is moved to a different # vnet. atf_test_case "wg_vnet_parent_routing" "cleanup" wg_vnet_parent_routing_head() { atf_set descr 'Create a wg(4) tunnel without epairs and pass traffic between jails' atf_set require.user root } wg_vnet_parent_routing_body() { local pri1 pri2 pub1 pub2 wg1 wg2 local tunnel1 tunnel2 kldload -n if_wg pri1=$(wg genkey) pri2=$(wg genkey) tunnel1=169.254.0.1 tunnel2=169.254.0.2 vnet_init wg1=$(ifconfig wg create) wg2=$(ifconfig wg create) vnet_mkjail wgtest1 ${wg1} vnet_mkjail wgtest2 ${wg2} echo "$pri1" | jexec wgtest1 wg set $wg1 listen-port 12345 \ private-key /dev/stdin pub1=$(jexec wgtest1 wg show $wg1 public-key) echo "$pri2" | jexec wgtest2 wg set $wg2 listen-port 12346 \ private-key /dev/stdin pub2=$(jexec wgtest2 wg show $wg2 public-key) atf_check -s exit:0 -o ignore \ jexec wgtest1 wg set $wg1 peer "$pub2" \ endpoint 127.0.0.1:12346 allowed-ips ${tunnel2}/32 atf_check -s exit:0 \ jexec wgtest1 ifconfig $wg1 inet ${tunnel1}/24 up atf_check -s exit:0 -o ignore \ jexec wgtest2 wg set $wg2 peer "$pub1" \ endpoint 127.0.0.1:12345 allowed-ips ${tunnel1}/32 atf_check -s exit:0 \ jexec wgtest2 ifconfig $wg2 inet ${tunnel2}/24 up # Sanity check ICMP counters; should clearly be nothing on these new # jails. We'll check them as we go to ensure that the ICMP packets # generated really are being handled by the jails' vnets. atf_check -o not-match:"histogram" jexec wgtest1 netstat -s -p icmp atf_check -o not-match:"histogram" jexec wgtest2 netstat -s -p icmp # Generous timeout since the handshake takes some time. atf_check -s exit:0 -o ignore jexec wgtest1 ping -c 1 -t 5 $tunnel2 atf_check -o match:"echo reply: 1" jexec wgtest1 netstat -s -p icmp atf_check -o match:"echo: 1" jexec wgtest2 netstat -s -p icmp atf_check -s exit:0 -o ignore jexec wgtest2 ping -c 1 $tunnel1 atf_check -o match:"echo reply: 1" jexec wgtest2 netstat -s -p icmp atf_check -o match:"echo: 1" jexec wgtest1 netstat -s -p icmp } wg_vnet_parent_routing_cleanup() { vnet_cleanup } atf_init_test_cases() { atf_add_test_case "wg_basic" atf_add_test_case "wg_key_peerdev_shared" atf_add_test_case "wg_key_peerdev_makeshared" atf_add_test_case "wg_vnet_parent_routing" }