Module Name: src
Committed By: ozaki-r
Date: Mon Oct 30 15:59:24 UTC 2017
Modified Files:
src/distrib/sets/lists/debug: mi
src/distrib/sets/lists/tests: mi
src/tests/net: net_common.sh
src/tests/net/ipsec: Makefile
Added Files:
src/tests/net/ipsec: natt_terminator.c t_ipsec_natt.sh
Log Message:
Add test cases of NAT-T (transport mode)
A small C program is added to make a special socket (UDP_ENCAP_ESPINUDP)
and keep it to handle UDP-encapsulated ESP packets.
To generate a diff of this commit:
cvs rdiff -u -r1.227 -r1.228 src/distrib/sets/lists/debug/mi
cvs rdiff -u -r1.764 -r1.765 src/distrib/sets/lists/tests/mi
cvs rdiff -u -r1.22 -r1.23 src/tests/net/net_common.sh
cvs rdiff -u -r1.9 -r1.10 src/tests/net/ipsec/Makefile
cvs rdiff -u -r0 -r1.1 src/tests/net/ipsec/natt_terminator.c \
src/tests/net/ipsec/t_ipsec_natt.sh
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/distrib/sets/lists/debug/mi
diff -u src/distrib/sets/lists/debug/mi:1.227 src/distrib/sets/lists/debug/mi:1.228
--- src/distrib/sets/lists/debug/mi:1.227 Tue Oct 10 19:31:56 2017
+++ src/distrib/sets/lists/debug/mi Mon Oct 30 15:59:23 2017
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.227 2017/10/10 19:31:56 christos Exp $
+# $NetBSD: mi,v 1.228 2017/10/30 15:59:23 ozaki-r Exp $
./etc/mtree/set.debug comp-sys-root
./usr/lib comp-sys-usr compatdir
./usr/lib/i18n/libBIG5_g.a comp-c-debuglib debuglib,compatfile
@@ -2280,6 +2280,7 @@
./usr/libdata/debug/usr/tests/net/if/t_compat.debug tests-net-debug debug,atf,rump
./usr/libdata/debug/usr/tests/net/if_loop/t_pr.debug tests-net-debug debug,atf,rump
./usr/libdata/debug/usr/tests/net/in_cksum/in_cksum.debug tests-net-debug debug,atf,compattestfile
+./usr/libdata/debug/usr/tests/net/ipsec/natt_terminator.debug tests-net-debug debug,atf,rump
./usr/libdata/debug/usr/tests/net/mcast/mcast.debug tests-net-debug debug,atf,rump
./usr/libdata/debug/usr/tests/net/mcast/t_mcast.debug tests-obsolete debug,atf,rump,obsolete
./usr/libdata/debug/usr/tests/net/net/t_pktinfo.debug tests-net-debug debug,atf,compattestfile
Index: src/distrib/sets/lists/tests/mi
diff -u src/distrib/sets/lists/tests/mi:1.764 src/distrib/sets/lists/tests/mi:1.765
--- src/distrib/sets/lists/tests/mi:1.764 Mon Oct 2 04:16:32 2017
+++ src/distrib/sets/lists/tests/mi Mon Oct 30 15:59:23 2017
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.764 2017/10/02 04:16:32 pgoyette Exp $
+# $NetBSD: mi,v 1.765 2017/10/30 15:59:23 ozaki-r Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@@ -3319,11 +3319,13 @@
./usr/tests/net/ipsec tests-net-tests compattestfile,atf
./usr/tests/net/ipsec/Atffile tests-net-tests atf,rump
./usr/tests/net/ipsec/Kyuafile tests-net-tests atf,rump,kyua
+./usr/tests/net/ipsec/natt_terminator tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_ah_keys tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_esp_keys tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_gif tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_l2tp tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_misc tests-net-tests atf,rump
+./usr/tests/net/ipsec/t_ipsec_natt tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_sockopt tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_sysctl tests-net-tests atf,rump
./usr/tests/net/ipsec/t_ipsec_tcp tests-net-tests atf,rump
Index: src/tests/net/net_common.sh
diff -u src/tests/net/net_common.sh:1.22 src/tests/net/net_common.sh:1.23
--- src/tests/net/net_common.sh:1.22 Fri Oct 20 03:45:02 2017
+++ src/tests/net/net_common.sh Mon Oct 30 15:59:23 2017
@@ -1,4 +1,4 @@
-# $NetBSD: net_common.sh,v 1.22 2017/10/20 03:45:02 ozaki-r Exp $
+# $NetBSD: net_common.sh,v 1.23 2017/10/30 15:59:23 ozaki-r Exp $
#
# Copyright (c) 2016 Internet Initiative Japan Inc.
# All rights reserved.
@@ -183,6 +183,7 @@ BASIC_LIBS="-lrumpnet -lrumpnet_net -lru
FS_LIBS="$BASIC_LIBS -lrumpvfs -lrumpfs_ffs"
CRYPTO_LIBS="$BASIC_LIBS -lrumpvfs -lrumpdev_opencrypto \
-lrumpkern_z -lrumpkern_crypto"
+NPF_LIBS="$BASIC_LIBS -lrumpvfs -lrumpdev_bpf -lrumpnet_bpfjit -lrumpnet_npf"
# We cannot keep variables between test phases, so need to store in files
_rump_server_socks=./.__socks
@@ -283,6 +284,24 @@ rump_server_crypto_start()
return 0
}
+rump_server_npf_start()
+{
+ local sock=$1
+ local _libs=
+ local libs="$NPF_LIBS"
+
+ shift 1
+ _libs="$*"
+
+ for lib in $_libs; do
+ libs="$libs -lrumpnet_$lib"
+ done
+
+ _rump_server_start_common $sock $libs
+
+ return 0
+}
+
rump_server_add_iface()
{
local sock=$1
Index: src/tests/net/ipsec/Makefile
diff -u src/tests/net/ipsec/Makefile:1.9 src/tests/net/ipsec/Makefile:1.10
--- src/tests/net/ipsec/Makefile:1.9 Wed Aug 2 02:19:56 2017
+++ src/tests/net/ipsec/Makefile Mon Oct 30 15:59:23 2017
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.9 2017/08/02 02:19:56 ozaki-r Exp $
+# $NetBSD: Makefile,v 1.10 2017/10/30 15:59:23 ozaki-r Exp $
#
.include <bsd.own.mk>
@@ -6,11 +6,15 @@
TESTSDIR= ${TESTSBASE}/net/ipsec
.for name in ipsec_ah_keys ipsec_esp_keys ipsec_gif ipsec_l2tp ipsec_misc \
- ipsec_sockopt ipsec_sysctl ipsec_tcp ipsec_transport ipsec_tunnel \
- ipsec_tunnel_ipcomp ipsec_tunnel_odd
+ ipsec_natt ipsec_sockopt ipsec_sysctl ipsec_tcp ipsec_transport \
+ ipsec_tunnel ipsec_tunnel_ipcomp ipsec_tunnel_odd
TESTS_SH+= t_${name}
TESTS_SH_SRC_t_${name}= ../net_common.sh ./common.sh ./algorithms.sh \
t_${name}.sh
.endfor
+PROGS= natt_terminator
+MAN.natt_terminator= # empty
+BINDIR.natt_terminator= ${TESTSDIR}
+
.include <bsd.test.mk>
Added files:
Index: src/tests/net/ipsec/natt_terminator.c
diff -u /dev/null src/tests/net/ipsec/natt_terminator.c:1.1
--- /dev/null Mon Oct 30 15:59:24 2017
+++ src/tests/net/ipsec/natt_terminator.c Mon Oct 30 15:59:23 2017
@@ -0,0 +1,108 @@
+/* $NetBSD: natt_terminator.c,v 1.1 2017/10/30 15:59:23 ozaki-r Exp $ */
+
+/*-
+ * Copyright (c) 2017 Internet Initiative Japan Inc.
+ * All rights reserved.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+
+#include <netinet/in.h>
+#include <netinet/udp.h>
+
+#include <stdio.h>
+#include <err.h>
+#include <netdb.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int
+main(int argc, char **argv)
+{
+ struct addrinfo hints;
+ struct addrinfo *res;
+ int s, e;
+ const char *addr, *port;
+ int option;
+
+ if (argc != 3) {
+ fprintf(stderr, "Usage: %s <addr> <port>\n", argv[0]);
+ return 1;
+ }
+
+ addr = argv[1];
+ port = argv[2];
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = AF_INET;
+ hints.ai_socktype = SOCK_DGRAM;
+ hints.ai_protocol = IPPROTO_UDP;
+ hints.ai_flags = 0;
+
+ e = getaddrinfo(addr, port, &hints, &res);
+ if (e != 0)
+ errx(EXIT_FAILURE, "getaddrinfo failed: %s", gai_strerror(e));
+
+ s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+ if (s == -1)
+ err(EXIT_FAILURE, "socket");
+
+ /*
+ * Set the option to tell the kernel that the socket can handle
+ * UDP-encapsulated ESP packets for NAT-T.
+ */
+ option = UDP_ENCAP_ESPINUDP;
+ e = setsockopt(s, IPPROTO_UDP, UDP_ENCAP, &option, sizeof(option));
+ if (e == -1)
+ err(EXIT_FAILURE, "setsockopt(UDP_ENCAP)");
+
+ e = bind(s, res->ai_addr, res->ai_addrlen);
+ if (e == -1)
+ err(EXIT_FAILURE, "bind");
+
+ /* Receiving a packet make the NAPT create a mapping. */
+ {
+ char buf[64];
+ struct sockaddr_storage z;
+ socklen_t len = sizeof(z);
+
+ e = recvfrom(s, buf, 64, MSG_PEEK,
+ (struct sockaddr *)&z, &len);
+ if (e == -1)
+ err(EXIT_FAILURE, "recvfrom");
+ }
+
+ /*
+ * Keep the socket in the kernel to handle UDP-encapsulated ESP packets.
+ */
+ pause();
+
+ close(s);
+
+ return 0;
+}
Index: src/tests/net/ipsec/t_ipsec_natt.sh
diff -u /dev/null src/tests/net/ipsec/t_ipsec_natt.sh:1.1
--- /dev/null Mon Oct 30 15:59:24 2017
+++ src/tests/net/ipsec/t_ipsec_natt.sh Mon Oct 30 15:59:23 2017
@@ -0,0 +1,376 @@
+# $NetBSD: t_ipsec_natt.sh,v 1.1 2017/10/30 15:59:23 ozaki-r Exp $
+#
+# Copyright (c) 2017 Internet Initiative Japan Inc.
+# All rights reserved.
+#
+# 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+#
+
+SOCK_LOCAL=unix://ipsec_natt_local
+SOCK_NAT=unix://ipsec_natt_nat
+SOCK_REMOTE=unix://ipsec_natt_remote
+BUS_LOCAL=./bus_ipsec_natt_local
+BUS_NAT=./bus_ipsec_natt_nat
+BUS_REMOTE=./bus_ipsec_natt_remote
+
+DEBUG=${DEBUG:-false}
+HIJACKING_NPF="${HIJACKING},blanket=/dev/npf"
+
+setup_servers()
+{
+
+ rump_server_crypto_start $SOCK_LOCAL netipsec
+ rump_server_npf_start $SOCK_NAT
+ rump_server_crypto_start $SOCK_REMOTE netipsec
+ rump_server_add_iface $SOCK_LOCAL shmif0 $BUS_LOCAL
+ rump_server_add_iface $SOCK_NAT shmif0 $BUS_LOCAL
+ rump_server_add_iface $SOCK_NAT shmif1 $BUS_NAT
+ rump_server_add_iface $SOCK_REMOTE shmif0 $BUS_NAT
+}
+
+setup_sp()
+{
+ local proto=$1
+ local algo_args="$2"
+ local ip_local=$3
+ local ip_remote=$4
+ local ip_nat_remote=$5
+ local tmpfile=./tmp
+
+ export RUMP_SERVER=$SOCK_LOCAL
+ cat > $tmpfile <<-EOF
+ spdadd $ip_local $ip_remote any -P out ipsec $proto/transport//require;
+ spdadd $ip_remote $ip_local any -P in ipsec $proto/transport//require;
+ EOF
+ $DEBUG && cat $tmpfile
+ atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
+ #check_sp_entries $SOCK_LOCAL $ip_local $ip_remote
+
+ export RUMP_SERVER=$SOCK_REMOTE
+ cat > $tmpfile <<-EOF
+ spdadd $ip_remote $ip_nat_remote any -P out ipsec $proto/transport//require;
+ spdadd $ip_local $ip_remote any -P in ipsec $proto/transport//require;
+ EOF
+ $DEBUG && cat $tmpfile
+ atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
+ #check_sp_entries $SOCK_REMOTE $ip_remote $ip_local
+}
+
+add_sa()
+{
+ local proto=$1
+ local algo_args="$2"
+ local ip_local=$3
+ local ip_remote=$4
+ local ip_nat_remote=$5
+ local spi=$6
+ local port=$7
+ local tmpfile=./tmp
+
+ export RUMP_SERVER=$SOCK_LOCAL
+ cat > $tmpfile <<-EOF
+ add $ip_local [4500] $ip_remote [4500] $proto $((spi)) $algo_args;
+ add $ip_remote [4500] $ip_local [4500] $proto $((spi + 1)) $algo_args;
+ EOF
+ $DEBUG && cat $tmpfile
+ atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
+ $DEBUG && $HIJACKING setkey -D
+ # XXX it can be expired if $lifetime is very short
+ #check_sa_entries $SOCK_LOCAL $ip_local $ip_remote
+
+ export RUMP_SERVER=$SOCK_REMOTE
+ cat > $tmpfile <<-EOF
+ add $ip_local [$port] $ip_remote [4500] $proto $((spi)) $algo_args;
+ add $ip_remote [4500] $ip_nat_remote [$port] $proto $((spi + 1)) $algo_args;
+ EOF
+ $DEBUG && cat $tmpfile
+ atf_check -s exit:0 -o empty $HIJACKING setkey -c < $tmpfile
+ $DEBUG && $HIJACKING setkey -D
+ # XXX it can be expired if $lifetime is very short
+ #check_sa_entries $SOCK_PEER $ip_local $ip_remote
+}
+
+prepare_file()
+{
+ local file=$1
+ local data="0123456789"
+
+ touch $file
+ for i in `seq 1 512`
+ do
+ echo $data >> $file
+ done
+}
+
+build_npf_conf()
+{
+ local outfile=$1
+ local localnet=$2
+
+ cat > $outfile <<-EOF
+ set bpf.jit off
+ \$int_if = inet4(shmif0)
+ \$ext_if = inet4(shmif1)
+ \$localnet = { $localnet }
+ map \$ext_if dynamic \$localnet -> \$ext_if
+ group "external" on \$ext_if {
+ pass stateful out final all
+ }
+ group "internal" on \$int_if {
+ block in all
+ pass in final from \$localnet
+ pass out final all
+ }
+ group default {
+ pass final on lo0 all
+ block all
+ }
+ EOF
+}
+
+PIDSFILE=./terminator.pids
+start_natt_terminator()
+{
+ local sock=$1
+ local ip=$2
+ local port=$3
+ local pidsfile=$4
+ local backup=$RUMP_SERVER
+ local pid=
+ local terminator="$(atf_get_srcdir)/natt_terminator"
+
+ export RUMP_SERVER=$sock
+
+ env LD_PRELOAD=/usr/lib/librumphijack.so \
+ $terminator $ip $port &
+ pid=$!
+ if [ ! -f $PIDSFILE ]; then
+ touch $PIDSFILE
+ fi
+ echo $pid >> $PIDSFILE
+
+ $DEBUG && rump.netstat -a -f inet
+
+ export RUMP_SERVER=$backup
+
+ sleep 1
+}
+
+stop_natt_terminators()
+{
+ local pid=
+
+ if [ ! -f $PIDSFILE ]; then
+ return
+ fi
+
+ for pid in $(cat $PIDSFILE); do
+ kill -9 $pid
+ done
+ rm -f $PIDSFILE
+}
+
+test_ipsec_natt_transport()
+{
+ local algo=$1
+ local ip_local=10.0.1.2
+ local ip_nat_local=10.0.1.1
+ local ip_nat_remote=20.0.0.1
+ local ip_remote=20.0.0.2
+ local subnet_local=10.0.1.0
+ local outfile=./out
+ local npffile=./npf.conf
+ local file_send=./file.send
+ local file_recv=./file.recv
+ local algo_args="$(generate_algo_args esp-udp $algo)"
+ local pid= port=
+
+ setup_servers
+
+ export RUMP_SERVER=$SOCK_LOCAL
+ atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.dad_count=0
+ atf_check -s exit:0 rump.ifconfig shmif0 $ip_local/24
+ atf_check -s exit:0 -o ignore \
+ rump.route -n add default $ip_nat_local
+
+ export RUMP_SERVER=$SOCK_NAT
+ atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.dad_count=0
+ atf_check -s exit:0 rump.ifconfig shmif0 $ip_nat_local/24
+ atf_check -s exit:0 rump.ifconfig shmif1 $ip_nat_remote/24
+ atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.forwarding=1
+
+ export RUMP_SERVER=$SOCK_REMOTE
+ atf_check -s exit:0 rump.sysctl -q -w net.inet.ip.dad_count=0
+ atf_check -s exit:0 rump.ifconfig shmif0 $ip_remote/24
+ atf_check -s exit:0 -o ignore \
+ rump.route -n add -net $subnet_local $ip_nat_remote
+
+ extract_new_packets $BUS_NAT > $outfile
+
+ # There is no NAT/NAPT. ping should just work.
+ export RUMP_SERVER=$SOCK_LOCAL
+ atf_check -s exit:0 -o ignore rump.ping -c 1 -n -w 3 $ip_remote
+
+ extract_new_packets $BUS_NAT > $outfile
+ $DEBUG && cat $outfile
+ atf_check -s exit:0 \
+ -o match:"$ip_local > $ip_remote: ICMP echo request" \
+ cat $outfile
+ atf_check -s exit:0 \
+ -o match:"$ip_remote > $ip_local: ICMP echo reply" \
+ cat $outfile
+
+ # Setup an NAPT with npf
+ build_npf_conf $npffile "$subnet_local/24"
+
+ export RUMP_SERVER=$SOCK_NAT
+ atf_check -s exit:0 $HIJACKING_NPF npfctl reload $npffile
+ atf_check -s exit:0 $HIJACKING_NPF npfctl start
+ $DEBUG && ${HIJACKING},"blanket=/dev/npf" npfctl show
+
+ # There is an NAPT. ping works but source IP/port are translated
+ export RUMP_SERVER=$SOCK_LOCAL
+ atf_check -s exit:0 -o ignore rump.ping -c 1 -n -w 3 $ip_remote
+
+ extract_new_packets $BUS_NAT > $outfile
+ $DEBUG && cat $outfile
+ atf_check -s exit:0 \
+ -o match:"$ip_nat_remote > $ip_remote: ICMP echo request" \
+ cat $outfile
+ atf_check -s exit:0 \
+ -o match:"$ip_remote > $ip_nat_remote: ICMP echo reply" \
+ cat $outfile
+
+ # Try TCP communications just in case
+ start_nc_server $SOCK_REMOTE 4501 $file_recv ipv4
+ prepare_file $file_send
+ export RUMP_SERVER=$SOCK_LOCAL
+ atf_check -s exit:0 $HIJACKING nc -w 3 $ip_remote 4501 < $file_send
+ atf_check -s exit:0 diff -q $file_send $file_recv
+ stop_nc_server
+
+ extract_new_packets $BUS_NAT > $outfile
+ $DEBUG && cat $outfile
+ atf_check -s exit:0 \
+ -o match:"${ip_nat_remote}\.[0-9]+ > ${ip_remote}\.4501" \
+ cat $outfile
+ atf_check -s exit:0 \
+ -o match:"${ip_remote}\.4501 > ${ip_nat_remote}\.[0-9]+" \
+ cat $outfile
+
+ # Launch a nc server as a terminator of NAT-T on outside the NAPT
+ start_natt_terminator $SOCK_REMOTE $ip_remote 4500
+ echo zzz > $file_send
+
+ export RUMP_SERVER=$SOCK_LOCAL
+ # Send a UDP packet to the remote server at port 4500 from the local
+ # host of port 4500. This makes a mapping on the NAPT between them
+ atf_check -s exit:0 $HIJACKING \
+ nc -u -w 3 -p 4500 $ip_remote 4500 < $file_send
+ # Launch a nc server as a terminator of NAT-T on inside the NAPT,
+ # taking over port 4500 of the local host.
+ start_natt_terminator $SOCK_LOCAL $ip_local 4500
+
+ # We need to keep the servers for NAT-T
+
+ export RUMP_SERVER=$SOCK_LOCAL
+ $DEBUG && rump.netstat -na -f inet
+ export RUMP_SERVER=$SOCK_REMOTE
+ $DEBUG && rump.netstat -na -f inet
+
+ # Get a translated port number from 4500 on the NAPT
+ export RUMP_SERVER=$SOCK_NAT
+ $DEBUG && $HIJACKING_NPF npfctl list
+ # 10.0.1.2:4500 20.0.0.2:4500 via shmif1:9696
+ port=$($HIJACKING_NPF npfctl list | awk -F 'shmif1:' '/4500/ {print $2;}')
+ $DEBUG && echo port=$port
+ if [ -z "$port" ]; then
+ atf_fail "Failed to get a traslated port on NAPT"
+ fi
+
+ # Create ESP-UDP IPsec connections
+ setup_sp esp "$algo_args" $ip_local $ip_remote $ip_nat_remote
+ add_sa "esp-udp" "$algo_args" $ip_local $ip_remote $ip_nat_remote 10000 $port
+
+ # ping should still work
+ export RUMP_SERVER=$SOCK_LOCAL
+ atf_check -s exit:0 -o ignore rump.ping -c 1 -n -w 3 $ip_remote
+
+ # Try TCP communications over the ESP-UDP connections
+ start_nc_server $SOCK_REMOTE 4501 $file_recv ipv4
+ prepare_file $file_send
+ export RUMP_SERVER=$SOCK_LOCAL
+ atf_check -s exit:0 -o ignore $HIJACKING nc -w 3 $ip_remote 4501 < $file_send
+ atf_check -s exit:0 diff -q $file_send $file_recv
+ stop_nc_server
+
+ # Check both ports and UDP encapsulation
+ extract_new_packets $BUS_NAT > $outfile
+ $DEBUG && cat $outfile
+ atf_check -s exit:0 \
+ -o match:"${ip_nat_remote}\.$port > ${ip_remote}\.4500: UDP-encap" \
+ cat $outfile
+ atf_check -s exit:0 \
+ -o match:"${ip_remote}\.4500 > ${ip_nat_remote}\.$port: UDP-encap" \
+ cat $outfile
+
+ # Kill the NAT-T terminator
+ stop_natt_terminators
+}
+
+add_test_ipsec_natt_transport()
+{
+ local algo=$1
+ local _algo=$(echo $algo | sed 's/-//g')
+ local name= desc=
+
+ desc="Test IPsec NAT-T ($algo)"
+ name="ipsec_natt_transport_${_algo}"
+
+ atf_test_case ${name} cleanup
+ eval "
+ ${name}_head() {
+ atf_set descr \"$desc\"
+ atf_set require.progs rump_server setkey nc
+ }
+ ${name}_body() {
+ test_ipsec_natt_transport $algo
+ rump_server_destroy_ifaces
+ }
+ ${name}_cleanup() {
+ stop_nc_server
+ stop_natt_terminators
+ \$DEBUG && dump
+ cleanup
+ }
+ "
+ atf_add_test_case ${name}
+}
+
+atf_init_test_cases()
+{
+ local algo=
+
+ for algo in $ESP_ENCRYPTION_ALGORITHMS_MINIMUM; do
+ add_test_ipsec_natt_transport $algo
+ done
+}
