1#!/usr/bin/env ksh 2# 3# CDDL HEADER START 4# 5# The contents of this file are subject to the terms of the 6# Common Development and Distribution License (the "License"). 7# You may not use this file except in compliance with the License. 8# 9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10# or http://www.opensolaris.org/os/licensing. 11# See the License for the specific language governing permissions 12# and limitations under the License. 13# 14# When distributing Covered Code, include this CDDL HEADER in each 15# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16# If applicable, add the following below this CDDL HEADER, with the 17# fields enclosed by brackets "[]" replaced with your own identifying 18# information: Portions Copyright [yyyy] [name of copyright owner] 19# 20# CDDL HEADER END 21# 22 23# 24# Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. 25# 26 27# 28# Test {ip,udp}:::{send,receive} of IPv4 UDP to a local address. 29# 30# This may fail due to: 31# 32# 1. A change to the ip stack breaking expected probe behavior, 33# which is the reason we are testing. 34# 2. No physical network interface is plumbed and up. 35# 3. No other hosts on this subnet are reachable and listening on rpcbind. 36# 4. An unlikely race causes the unlocked global send/receive 37# variables to be corrupted. 38# 39# This test sends a UDP message using perl and checks that at least the 40# following counts were traced: 41# 42# 1 x ip:::send (UDP sent to UDP port 33434) 43# 1 x udp:::send (UDP sent to UDP port 33434) 44# 1 x ip:::receive (UDP received) 45# 1 x udp:::receive (UDP received) 46# 47# A udp:::receive event is expected even if the received UDP packet 48# elicits an ICMP PORT_UNREACHABLE message since there is no UDP 49# socket for receiving the packet. 50# 51 52if (( $# != 1 )); then 53 print -u2 "expected one argument: <dtrace-path>" 54 exit 2 55fi 56 57dtrace=$1 58local=127.0.0.1 59port=33434 60DIR=/var/tmp/dtest.$$ 61 62mkdir $DIR 63cd $DIR 64 65cat > test.pl <<-EOPERL 66 use IO::Socket; 67 my \$s = IO::Socket::INET->new( 68 Proto => "udp", 69 PeerAddr => "$local", 70 PeerPort => $port); 71 die "Could not create UDP socket $local port $port" unless \$s; 72 send \$s, "Hello", 0; 73 close \$s; 74 sleep(2); 75EOPERL 76 77$dtrace -c 'perl test.pl' -qs /dev/stdin <<EODTRACE 78BEGIN 79{ 80 ipsend = udpsend = ipreceive = udpreceive = 0; 81} 82 83ip:::send 84/args[2]->ip_saddr == "$local" && args[2]->ip_daddr == "$local" && 85 args[4]->ipv4_protocol == IPPROTO_UDP/ 86{ 87 ipsend++; 88} 89 90udp:::send 91/args[2]->ip_saddr == "$local" && args[2]->ip_daddr == "$local"/ 92{ 93 udpsend++; 94} 95 96ip:::receive 97/args[2]->ip_saddr == "$local" && args[2]->ip_daddr == "$local" && 98 args[4]->ipv4_protocol == IPPROTO_UDP/ 99{ 100 ipreceive++; 101} 102 103udp:::receive 104/args[2]->ip_saddr == "$local" && args[2]->ip_daddr == "$local"/ 105{ 106 udpreceive++; 107} 108 109END 110{ 111 printf("Minimum UDP events seen\n\n"); 112 printf("ip:::send - %s\n", ipsend >= 1 ? "yes" : "no"); 113 printf("ip:::receive - %s\n", ipreceive >= 1 ? "yes" : "no"); 114 printf("udp:::send - %s\n", udpsend >= 1 ? "yes" : "no"); 115 printf("udp:::receive - %s\n", udpreceive >= 1 ? "yes" : "no"); 116} 117EODTRACE 118 119status=$? 120 121cd / 122/bin/rm -rf $DIR 123 124exit $status 125