[Midnightbsd-cvs] src [11970] trunk/tests/sys/netinet: add netinet tests
laffer1 at midnightbsd.org
laffer1 at midnightbsd.org
Sat Jul 28 16:41:21 EDT 2018
Revision: 11970
http://svnweb.midnightbsd.org/src/?rev=11970
Author: laffer1
Date: 2018-07-28 16:41:20 -0400 (Sat, 28 Jul 2018)
Log Message:
-----------
add netinet tests
Added Paths:
-----------
trunk/tests/sys/netinet/
trunk/tests/sys/netinet/Makefile
trunk/tests/sys/netinet/fibs_test.sh
trunk/tests/sys/netinet/udp_dontroute.c
Added: trunk/tests/sys/netinet/Makefile
===================================================================
--- trunk/tests/sys/netinet/Makefile (rev 0)
+++ trunk/tests/sys/netinet/Makefile 2018-07-28 20:41:20 UTC (rev 11970)
@@ -0,0 +1,12 @@
+# $MidnightBSD$
+# $FreeBSD: stable/10/tests/sys/netinet/Makefile 276486 2014-12-31 23:25:37Z ngie $
+
+TESTSDIR= ${TESTSBASE}/sys/netinet
+BINDIR= ${TESTSDIR}
+
+ATF_TESTS_SH= fibs_test
+PROGS= udp_dontroute
+MAN=
+WARNS?= 6
+
+.include <bsd.test.mk>
Property changes on: trunk/tests/sys/netinet/Makefile
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Added: svn:eol-style
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Added: trunk/tests/sys/netinet/fibs_test.sh
===================================================================
--- trunk/tests/sys/netinet/fibs_test.sh (rev 0)
+++ trunk/tests/sys/netinet/fibs_test.sh 2018-07-28 20:41:20 UTC (rev 11970)
@@ -0,0 +1,489 @@
+#
+# Copyright (c) 2014 Spectra Logic Corporation
+# 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,
+# without modification.
+# 2. Redistributions in binary form must reproduce at minimum a disclaimer
+# substantially similar to the "NO WARRANTY" disclaimer below
+# ("Disclaimer") and any redistribution must be conditioned upon
+# including a substantially similar Disclaimer requirement for further
+# binary redistribution.
+#
+# NO WARRANTY
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+#
+# Authors: Alan Somers (Spectra Logic Corporation)
+#
+# $MidnightBSD$
+
+# All of the tests in this file requires the test-suite config variable "fibs"
+# to be defined to a space-delimited list of FIBs that may be used for testing.
+
+# arpresolve should check the interface fib for routes to a target when
+# creating an ARP table entry. This is a regression for kern/167947, where
+# arpresolve only checked the default route.
+#
+# Outline:
+# Create two tap(4) interfaces
+# Simulate a crossover cable between them by using net/socat
+# Use nping (from security/nmap) to send an ICMP echo request from one
+# interface to the other, spoofing the source IP. The source IP must be
+# spoofed, or else it will already have an entry in the arp table.
+# Check whether an arp entry exists for the spoofed IP
+atf_test_case arpresolve_checks_interface_fib cleanup
+arpresolve_checks_interface_fib_head()
+{
+ atf_set "descr" "arpresolve should check the interface fib, not the default fib, for routes"
+ atf_set "require.user" "root"
+ atf_set "require.config" "fibs"
+ atf_set "require.progs" "socat nping"
+}
+arpresolve_checks_interface_fib_body()
+{
+ # Configure the TAP interfaces to use a RFC5737 nonrouteable addresses
+ # and a non-default fib
+ ADDR0="192.0.2.2"
+ ADDR1="192.0.2.3"
+ SUBNET="192.0.2.0"
+ # Due to bug TBD (regressed by multiple_fibs_on_same_subnet) we need
+ # diffferent subnet masks, or FIB1 won't have a subnet route.
+ MASK0="24"
+ MASK1="25"
+ # Spoof a MAC that is reserved per RFC7042
+ SPOOF_ADDR="192.0.2.4"
+ SPOOF_MAC="00:00:5E:00:53:00"
+
+ # Check system configuration
+ if [ 0 != `sysctl -n net.add_addr_allfibs` ]; then
+ atf_skip "This test requires net.add_addr_allfibs=0"
+ fi
+ get_fibs 2
+
+ # Configure TAP interfaces
+ setup_tap "$FIB0" ${ADDR0} ${MASK0}
+ TAP0=$TAP
+ setup_tap "$FIB1" ${ADDR1} ${MASK1}
+ TAP1=$TAP
+
+ # Simulate a crossover cable
+ socat /dev/${TAP0} /dev/${TAP1} &
+ SOCAT_PID=$!
+ echo ${SOCAT_PID} >> "processes_to_kill"
+
+ # Send an ICMP echo request with a spoofed source IP
+ setfib 2 nping -c 1 -e ${TAP0} -S ${SPOOF_ADDR} \
+ --source-mac ${SPOOF_MAC} --icmp --icmp-type "echo-request" \
+ --icmp-code 0 --icmp-id 0xdead --icmp-seq 1 --data 0xbeef \
+ ${ADDR1}
+ # For informational and debugging purposes only, look for the
+ # characteristic error message
+ dmesg | grep "llinfo.*${SPOOF_ADDR}"
+ # Check that the ARP entry exists
+ atf_check -o match:"${SPOOF_ADDR}.*expires" setfib 3 arp ${SPOOF_ADDR}
+}
+arpresolve_checks_interface_fib_cleanup()
+{
+ if [ -f processes_to_kill ]; then
+ for pid in $(cat processes_to_kill); do
+ kill "${pid}"
+ done
+ rm -f processes_to_kill
+ fi
+ cleanup_tap
+}
+
+
+# Regression test for kern/187549
+atf_test_case loopback_and_network_routes_on_nondefault_fib cleanup
+loopback_and_network_routes_on_nondefault_fib_head()
+{
+ atf_set "descr" "When creating and deleting loopback routes, use the interface's fib"
+ atf_set "require.user" "root"
+ atf_set "require.config" "fibs"
+}
+
+loopback_and_network_routes_on_nondefault_fib_body()
+{
+ # Configure the TAP interface to use an RFC5737 nonrouteable address
+ # and a non-default fib
+ ADDR="192.0.2.2"
+ SUBNET="192.0.2.0"
+ MASK="24"
+
+ # Check system configuration
+ if [ 0 != `sysctl -n net.add_addr_allfibs` ]; then
+ atf_skip "This test requires net.add_addr_allfibs=0"
+ fi
+ get_fibs 1
+
+ # Configure a TAP interface
+ setup_tap ${FIB0} ${ADDR} ${MASK}
+
+ # Check whether the host route exists in only the correct FIB
+ setfib ${FIB0} netstat -rn -f inet | grep -q "^${ADDR}.*UHS.*lo0"
+ if [ 0 -ne $? ]; then
+ setfib ${FIB0} netstat -rn -f inet
+ atf_fail "Host route did not appear in the correct FIB"
+ fi
+ setfib 0 netstat -rn -f inet | grep -q "^${ADDR}.*UHS.*lo0"
+ if [ 0 -eq $? ]; then
+ setfib 0 netstat -rn -f inet
+ atf_fail "Host route appeared in the wrong FIB"
+ fi
+
+ # Check whether the network route exists in only the correct FIB
+ setfib ${FIB0} netstat -rn -f inet | \
+ grep -q "^${SUBNET}/${MASK}.*${TAPD}"
+ if [ 0 -ne $? ]; then
+ setfib ${FIB0} netstat -rn -f inet
+ atf_fail "Network route did not appear in the correct FIB"
+ fi
+ setfib 0 netstat -rn -f inet | \
+ grep -q "^${SUBNET}/${MASK}.*${TAPD}"
+ if [ 0 -eq $? ]; then
+ setfib ${FIB0} netstat -rn -f inet
+ atf_fail "Network route appeared in the wrong FIB"
+ fi
+}
+
+loopback_and_network_routes_on_nondefault_fib_cleanup()
+{
+ cleanup_tap
+}
+
+
+# Regression test for kern/187552
+atf_test_case default_route_with_multiple_fibs_on_same_subnet cleanup
+default_route_with_multiple_fibs_on_same_subnet_head()
+{
+ atf_set "descr" "Multiple interfaces on the same subnet but with different fibs can both have default routes"
+ atf_set "require.user" "root"
+ atf_set "require.config" "fibs"
+}
+
+default_route_with_multiple_fibs_on_same_subnet_body()
+{
+ # Configure the TAP interfaces to use a RFC5737 nonrouteable addresses
+ # and a non-default fib
+ ADDR0="192.0.2.2"
+ ADDR1="192.0.2.3"
+ GATEWAY="192.0.2.1"
+ SUBNET="192.0.2.0"
+ MASK="24"
+
+ # Check system configuration
+ if [ 0 != `sysctl -n net.add_addr_allfibs` ]; then
+ atf_skip "This test requires net.add_addr_allfibs=0"
+ fi
+ get_fibs 2
+
+ # Configure TAP interfaces
+ setup_tap "$FIB0" ${ADDR0} ${MASK}
+ TAP0=$TAP
+ setup_tap "$FIB1" ${ADDR1} ${MASK}
+ TAP1=$TAP
+
+ # Attempt to add default routes
+ setfib ${FIB0} route add default ${GATEWAY}
+ setfib ${FIB1} route add default ${GATEWAY}
+
+ # Verify that the default route exists for both fibs, with their
+ # respective interfaces.
+ atf_check -o match:"^default.*${TAP0}$" \
+ setfib ${FIB0} netstat -rn -f inet
+ atf_check -o match:"^default.*${TAP1}$" \
+ setfib ${FIB1} netstat -rn -f inet
+}
+
+default_route_with_multiple_fibs_on_same_subnet_cleanup()
+{
+ cleanup_tap
+}
+
+
+# Regression test for PR kern/189089
+# Create two tap interfaces and assign them both the same IP address but with
+# different netmasks, and both on the default FIB. Then remove one's IP
+# address. Hopefully the machine won't panic.
+atf_test_case same_ip_multiple_ifaces_fib0 cleanup
+same_ip_multiple_ifaces_fib0_head()
+{
+ atf_set "descr" "Can remove an IP alias from an interface when the same IP is also assigned to another interface."
+ atf_set "require.user" "root"
+ atf_set "require.config" "fibs"
+}
+same_ip_multiple_ifaces_fib0_body()
+{
+ ADDR="192.0.2.2"
+ MASK0="24"
+ MASK1="32"
+
+ # Unlike most of the tests in this file, this is applicable regardless
+ # of net.add_addr_allfibs
+
+ # Setup the interfaces, then remove one alias. It should not panic.
+ setup_tap 0 ${ADDR} ${MASK0}
+ TAP0=${TAP}
+ setup_tap 0 ${ADDR} ${MASK1}
+ TAP1=${TAP}
+ ifconfig ${TAP1} -alias ${ADDR}
+
+ # Do it again, in the opposite order. It should not panic.
+ setup_tap 0 ${ADDR} ${MASK0}
+ TAP0=${TAP}
+ setup_tap 0 ${ADDR} ${MASK1}
+ TAP1=${TAP}
+ ifconfig ${TAP0} -alias ${ADDR}
+}
+same_ip_multiple_ifaces_fib0_cleanup()
+{
+ cleanup_tap
+}
+
+# Regression test for PR kern/189088
+# Test that removing an IP address works even if the same IP is assigned to a
+# different interface, on a different FIB. Tests the same code that whose
+# panic was regressed by same_ip_multiple_ifaces_fib0.
+# Create two tap interfaces and assign them both the same IP address but with
+# different netmasks, and on different FIBs. Then remove one's IP
+# address. Hopefully the machine won't panic. Also, the IP's hostroute should
+# dissappear from the correct fib.
+atf_test_case same_ip_multiple_ifaces cleanup
+same_ip_multiple_ifaces_head()
+{
+ atf_set "descr" "Can remove an IP alias from an interface when the same IP is also assigned to another interface, on non-default FIBs."
+ atf_set "require.user" "root"
+ atf_set "require.config" "fibs"
+}
+same_ip_multiple_ifaces_body()
+{
+ atf_expect_fail "kern/189088 Assigning the same IP to multiple interfaces in different FIBs creates a host route for only one"
+ ADDR="192.0.2.2"
+ MASK0="24"
+ MASK1="32"
+
+ # Unlike most of the tests in this file, this is applicable regardless
+ # of net.add_addr_allfibs
+ get_fibs 2
+
+ # Setup the interfaces, then remove one alias. It should not panic.
+ setup_tap ${FIB0} ${ADDR} ${MASK0}
+ TAP0=${TAP}
+ setup_tap ${FIB1} ${ADDR} ${MASK1}
+ TAP1=${TAP}
+ ifconfig ${TAP1} -alias ${ADDR}
+ atf_check -o not-match:"^${ADDR}[[:space:]]" \
+ setfib ${FIB1} netstat -rn -f inet
+
+ # Do it again, in the opposite order. It should not panic.
+ setup_tap ${FIB0} ${ADDR} ${MASK0}
+ TAP0=${TAP}
+ setup_tap ${FIB1} ${ADDR} ${MASK1}
+ TAP1=${TAP}
+ ifconfig ${TAP0} -alias ${ADDR}
+ atf_check -o not-match:"^${ADDR}[[:space:]]" \
+ setfib ${FIB0} netstat -rn -f inet
+}
+same_ip_multiple_ifaces_cleanup()
+{
+ # Due to PR kern/189088, we must destroy the interfaces in LIFO order
+ # in order for the routes to be correctly cleaned up.
+ for TAPD in `tail -r "tap_devices_to_cleanup"`; do
+ ifconfig ${TAPD} destroy
+ done
+}
+
+# Regression test for kern/187550
+atf_test_case subnet_route_with_multiple_fibs_on_same_subnet cleanup
+subnet_route_with_multiple_fibs_on_same_subnet_head()
+{
+ atf_set "descr" "Multiple FIBs can have subnet routes for the same subnet"
+ atf_set "require.user" "root"
+ atf_set "require.config" "fibs"
+}
+
+subnet_route_with_multiple_fibs_on_same_subnet_body()
+{
+ # Configure the TAP interfaces to use a RFC5737 nonrouteable addresses
+ # and a non-default fib
+ ADDR0="192.0.2.2"
+ ADDR1="192.0.2.3"
+ SUBNET="192.0.2.0"
+ MASK="24"
+
+ # Check system configuration
+ if [ 0 != `sysctl -n net.add_addr_allfibs` ]; then
+ atf_skip "This test requires net.add_addr_allfibs=0"
+ fi
+ get_fibs 2
+
+ # Configure TAP interfaces
+ setup_tap "$FIB0" ${ADDR0} ${MASK}
+ setup_tap "$FIB1" ${ADDR1} ${MASK}
+
+ # Check that a subnet route exists on both fibs
+ atf_check -o ignore setfib "$FIB0" route get $ADDR1
+ atf_check -o ignore setfib "$FIB1" route get $ADDR0
+}
+
+subnet_route_with_multiple_fibs_on_same_subnet_cleanup()
+{
+ cleanup_tap
+}
+
+# Test that source address selection works correctly for UDP packets with
+# SO_DONTROUTE set that are sent on non-default FIBs.
+# This bug was discovered with "setfib 1 netperf -t UDP_STREAM -H some_host"
+# Regression test for kern/187553
+#
+# The root cause was that ifa_ifwithnet() did not have a fib argument. It
+# would return an address from an interface on any FIB that had a subnet route
+# for the destination. If more than one were available, it would choose the
+# most specific. This is most easily tested by creating a FIB without a
+# default route, then trying to send a UDP packet with SO_DONTROUTE set to an
+# address which is not routable on that FIB. Absent the fix for this bug,
+# in_pcbladdr would choose an interface on any FIB with a default route. With
+# the fix, you will get EUNREACH or ENETUNREACH.
+atf_test_case udp_dontroute cleanup
+udp_dontroute_head()
+{
+ atf_set "descr" "Source address selection for UDP packets with SO_DONTROUTE on non-default FIBs works"
+ atf_set "require.user" "root"
+ atf_set "require.config" "fibs"
+}
+
+udp_dontroute_body()
+{
+ atf_expect_fail "kern/187553 Source address selection for UDP packets with SO_DONTROUTE uses the default FIB"
+ # Configure the TAP interface to use an RFC5737 nonrouteable address
+ # and a non-default fib
+ ADDR0="192.0.2.2"
+ ADDR1="192.0.2.3"
+ SUBNET="192.0.2.0"
+ MASK="24"
+ # Use a different IP on the same subnet as the target
+ TARGET="192.0.2.100"
+ SRCDIR=`atf_get_srcdir`
+
+ # Check system configuration
+ if [ 0 != `sysctl -n net.add_addr_allfibs` ]; then
+ atf_skip "This test requires net.add_addr_allfibs=0"
+ fi
+ get_fibs 2
+
+ # Configure the TAP interfaces
+ setup_tap ${FIB0} ${ADDR0} ${MASK}
+ TARGET_TAP=${TAP}
+ setup_tap ${FIB1} ${ADDR1} ${MASK}
+
+ # Send a UDP packet with SO_DONTROUTE. In the failure case, it will
+ # return ENETUNREACH, or send the packet to the wrong tap
+ atf_check -o ignore setfib ${FIB0} \
+ ${SRCDIR}/udp_dontroute ${TARGET} /dev/${TARGET_TAP}
+ cleanup_tap
+
+ # Repeat, but this time target the other tap
+ setup_tap ${FIB0} ${ADDR0} ${MASK}
+ setup_tap ${FIB1} ${ADDR1} ${MASK}
+ TARGET_TAP=${TAP}
+
+ atf_check -o ignore setfib ${FIB1} \
+ ${SRCDIR}/udp_dontroute ${TARGET} /dev/${TARGET_TAP}
+}
+
+udp_dontroute_cleanup()
+{
+ cleanup_tap
+}
+
+
+atf_init_test_cases()
+{
+ atf_add_test_case arpresolve_checks_interface_fib
+ atf_add_test_case loopback_and_network_routes_on_nondefault_fib
+ atf_add_test_case default_route_with_multiple_fibs_on_same_subnet
+ atf_add_test_case same_ip_multiple_ifaces_fib0
+ atf_add_test_case same_ip_multiple_ifaces
+ atf_add_test_case subnet_route_with_multiple_fibs_on_same_subnet
+ atf_add_test_case udp_dontroute
+}
+
+# Looks up one or more fibs from the configuration data and validates them.
+# Returns the results in the env varilables FIB0, FIB1, etc.
+
+# parameter numfibs The number of fibs to lookup
+get_fibs()
+{
+ NUMFIBS=$1
+ net_fibs=`sysctl -n net.fibs`
+ i=0
+ while [ $i -lt "$NUMFIBS" ]; do
+ fib=`atf_config_get "fibs" | \
+ awk -v i=$(( i + 1 )) '{print $i}'`
+ echo "fib is ${fib}"
+ eval FIB${i}=${fib}
+ if [ "$fib" -ge "$net_fibs" ]; then
+ atf_skip "The ${i}th configured fib is ${fib}, which is not less than net.fibs, which is ${net_fibs}"
+ fi
+ i=$(( $i + 1 ))
+ done
+}
+
+# Creates a new tap(4) interface, registers it for cleanup, and returns the
+# name via the environment variable TAP
+get_tap()
+{
+ local TAPN=0
+ while ! ifconfig tap${TAPN} create > /dev/null 2>&1; do
+ if [ "$TAPN" -ge 8 ]; then
+ atf_skip "Could not create a tap(4) interface"
+ else
+ TAPN=$(($TAPN + 1))
+ fi
+ done
+ local TAPD=tap${TAPN}
+ # Record the TAP device so we can clean it up later
+ echo ${TAPD} >> "tap_devices_to_cleanup"
+ TAP=${TAPD}
+}
+
+# Create a tap(4) interface, configure it, and register it for cleanup.
+# parameters:
+# fib
+# IP address
+# Netmask in number of bits (eg 24 or 8)
+# Return: the tap interface name as the env variable TAP
+setup_tap()
+{
+ local FIB=$1
+ local ADDR=$2
+ local MASK=$3
+ get_tap
+ echo setfib ${FIB} ifconfig $TAP ${ADDR}/${MASK} fib $FIB
+ setfib ${FIB} ifconfig $TAP ${ADDR}/${MASK} fib $FIB
+}
+
+cleanup_tap()
+{
+ if [ -f tap_devices_to_cleanup ]; then
+ for tap_device in $(cat tap_devices_to_cleanup); do
+ ifconfig "${tap_device}" destroy
+ done
+ rm -f tap_devices_to_cleanup
+ fi
+}
Property changes on: trunk/tests/sys/netinet/fibs_test.sh
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+MidnightBSD=%H
\ No newline at end of property
Added: svn:mime-type
## -0,0 +1 ##
+text/plain
\ No newline at end of property
Added: trunk/tests/sys/netinet/udp_dontroute.c
===================================================================
--- trunk/tests/sys/netinet/udp_dontroute.c (rev 0)
+++ trunk/tests/sys/netinet/udp_dontroute.c 2018-07-28 20:41:20 UTC (rev 11970)
@@ -0,0 +1,112 @@
+/* $MidnightBSD$ */
+/*
+ * Copyright (c) 2014 Spectra Logic Corporation
+ * 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,
+ * without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ * substantially similar to the "NO WARRANTY" disclaimer below
+ * ("Disclaimer") and any redistribution must be conditioned upon
+ * including a substantially similar Disclaimer requirement for further
+ * binary redistribution.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ *
+ * Authors: Alan Somers (Spectra Logic Corporation)
+ *
+ * $FreeBSD: stable/10/tests/sys/netinet/udp_dontroute.c 267186 2014-06-06 20:35:40Z asomers $
+ */
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/*
+ * Sends a single UDP packet to the provided address, with SO_DONTROUTE set
+ * I couldn't find a way to do this with builtin utilities like nc(1)
+ */
+int
+main(int argc, char **argv)
+{
+ struct sockaddr_in dst;
+ int s, t;
+ int opt;
+ int ret;
+ ssize_t len;
+ const char* sendbuf = "Hello, World!";
+ const size_t buflen = 80;
+ char recvbuf[buflen];
+
+ if (argc != 3) {
+ fprintf(stderr, "Usage: %s ip_address tapdev\n", argv[0]);
+ exit(2);
+ }
+
+ t = open(argv[2], O_RDWR | O_NONBLOCK);
+ if (t < 0)
+ err(EXIT_FAILURE, "open");
+
+ s = socket(PF_INET, SOCK_DGRAM, 0);
+ if (s < 0)
+ err(EXIT_FAILURE, "socket");
+ opt = 1;
+
+ ret = setsockopt(s, SOL_SOCKET, SO_DONTROUTE, &opt, sizeof(opt));
+ if (ret == -1)
+ err(EXIT_FAILURE, "setsockopt(SO_DONTROUTE)");
+
+ dst.sin_len = sizeof(dst);
+ dst.sin_family = AF_INET;
+ dst.sin_port = htons(46120);
+ dst.sin_addr.s_addr = inet_addr(argv[1]);
+ if (dst.sin_addr.s_addr == htonl(INADDR_NONE)) {
+ fprintf(stderr, "Invalid address: %s\n", argv[1]);
+ exit(2);
+ }
+ ret = sendto(s, sendbuf, strlen(sendbuf), 0, (struct sockaddr*)&dst,
+ dst.sin_len);
+ if (ret == -1)
+ err(EXIT_FAILURE, "sendto");
+
+ /* Verify that the packet went to the desired tap device */
+
+ len = read(t, recvbuf, buflen);
+ if (len == 0)
+ errx(EXIT_FAILURE, "read returned EOF");
+ else if (len < 0 && errno == EAGAIN)
+ errx(EXIT_FAILURE, "Did not receive any packets");
+ else if (len < 0)
+ err(EXIT_FAILURE, "read");
+
+ /*
+ * If read returned anything at all, consider it a success. The packet
+ * should be an Ethernet frame containing an ARP request for
+ * ip_address. We won't bother to decode it
+ */
+ return (0);
+}
Property changes on: trunk/tests/sys/netinet/udp_dontroute.c
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+MidnightBSD=%H
\ No newline at end of property
Added: svn:mime-type
## -0,0 +1 ##
+text/plain
\ No newline at end of property
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