Module Name: src
Committed By: ozaki-r
Date: Mon Feb 20 09:58:59 UTC 2017
Modified Files:
src/tests/net/net: t_forwarding.sh
Log Message:
Add basic tests for forwarding fragmented packets
To generate a diff of this commit:
cvs rdiff -u -r1.19 -r1.20 src/tests/net/net/t_forwarding.sh
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/tests/net/net/t_forwarding.sh
diff -u src/tests/net/net/t_forwarding.sh:1.19 src/tests/net/net/t_forwarding.sh:1.20
--- src/tests/net/net/t_forwarding.sh:1.19 Fri Nov 25 08:51:17 2016
+++ src/tests/net/net/t_forwarding.sh Mon Feb 20 09:58:58 2017
@@ -1,4 +1,4 @@
-# $NetBSD: t_forwarding.sh,v 1.19 2016/11/25 08:51:17 ozaki-r Exp $
+# $NetBSD: t_forwarding.sh,v 1.20 2017/02/20 09:58:58 ozaki-r Exp $
#
# Copyright (c) 2015 The NetBSD Foundation, Inc.
# All rights reserved.
@@ -47,6 +47,7 @@ atf_test_case ipforwarding_v6 cleanup
atf_test_case ipforwarding_fastforward_v4 cleanup
atf_test_case ipforwarding_fastforward_v6 cleanup
atf_test_case ipforwarding_misc cleanup
+atf_test_case ipforwarding_fragment_v4 cleanup
ipforwarding_v4_head()
{
@@ -78,6 +79,12 @@ ipforwarding_misc_head()
atf_set "require.progs" "rump_server"
}
+ipforwarding_fragment_v4_head()
+{
+ atf_set "descr" "Tests for fragmented packet forwarding (IPv4)"
+ atf_set "require.progs" "rump_server"
+}
+
setup_endpoint()
{
sock=${1}
@@ -150,6 +157,18 @@ setup_forwarder()
fi
}
+prepare_file()
+{
+ local file=$1
+ local data="0123456789"
+
+ touch $file
+ for i in `seq 1 512`
+ do
+ echo $data >> $file
+ done
+}
+
setup()
{
rump_server_start $SOCKSRC
@@ -398,6 +417,22 @@ test_hoplimit()
$DEBUG && rump.ifconfig -v shmif0
}
+setup_mtu()
+{
+ local mtu=$1
+
+ export RUMP_SERVER=$SOCKFWD
+ atf_check -s exit:0 rump.ifconfig shmif0 mtu $mtu
+}
+
+disable_mtudisc()
+{
+ local mtu=$1
+
+ export RUMP_SERVER=$SOCKDST
+ atf_check -s exit:0 -o ignore rump.sysctl -w -q net.inet.ip.mtudisc=0
+}
+
ipforwarding_v4_body()
{
setup
@@ -487,6 +522,37 @@ ipforwarding_misc_body()
return 0
}
+ipforwarding_fragment_v4_body()
+{
+ setup
+ test_setup
+
+ setup_forwarding
+ test_setup_forwarding
+
+ prepare_file $HTML_FILE
+ start_httpd $SOCKDST $IP4DST
+ $DEBUG && rump.netstat -a
+ setup_mtu 1000
+ disable_mtudisc
+
+ extract_new_packets bus1 > ./out
+ extract_new_packets bus2 > ./out
+
+ test_http_get $IP4DST
+
+ # Packets of MTU size sent from the server
+ extract_new_packets bus2 > ./out
+ atf_check -s exit:0 -o match:'length 1514' cat ./out
+
+ # The packets are fragmented down to 1000
+ extract_new_packets bus1 > ./out
+ atf_check -s exit:0 -o match:'length 1010' cat ./out
+ atf_check -s exit:0 -o match:'length 538' cat ./out
+
+ teardown_interfaces
+}
+
ipforwarding_v4_cleanup()
{
$DEBUG && dump
@@ -520,6 +586,13 @@ ipforwarding_misc_cleanup()
cleanup
}
+ipforwarding_fragment_v4_cleanup()
+{
+ $DEBUG && dump
+ stop_httpd
+ cleanup
+}
+
atf_init_test_cases()
{
atf_add_test_case ipforwarding_v4
@@ -527,4 +600,5 @@ atf_init_test_cases()
atf_add_test_case ipforwarding_fastforward_v4
atf_add_test_case ipforwarding_fastforward_v6
atf_add_test_case ipforwarding_misc
+ atf_add_test_case ipforwarding_fragment_v4
}
