#!/usr/bin/ksh # # CDDL HEADER START # # The contents of this file are subject to the terms of the # Common Development and Distribution License (the "License"). # You may not use this file except in compliance with the License. # # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE # or http://www.opensolaris.org/os/licensing. # See the License for the specific language governing permissions # and limitations under the License. # # When distributing Covered Code, include this CDDL HEADER in each # file and include the License file at usr/src/OPENSOLARIS.LICENSE. # If applicable, add the following below this CDDL HEADER, with the # fields enclosed by brackets "[]" replaced with your own identifying # information: Portions Copyright [yyyy] [name of copyright owner] # # CDDL HEADER END # # # Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. # # # Test ip:::{send,receive} of IPv4 UDP to a local address. # # This may fail due to: # # 1. A change to the ip stack breaking expected probe behavior, # which is the reason we are testing. # 2. No physical network interface is plumbed and up. # 3. No other hosts on this subnet are reachable and listening on rpcbind. # 4. An unlikely race causes the unlocked global send/receive # variables to be corrupted. # # This test sends a UDP message using ping and checks that at least the # following counts were traced: # # 1 x ip:::send (UDP sent to ping's base UDP port) # 1 x udp:::send (UDP sent to ping's base UDP port) # 1 x ip:::receive (UDP received) # # No udp:::receive event is expected as the response ping -U elicits is # an ICMP PORT_UNREACHABLE response rather than a UDP packet, and locally # the echo request UDP packet only reaches IP, so the udp:::receive probe # is not triggered by it. # if (( $# != 1 )); then print -u2 "expected one argument: " exit 2 fi dtrace=$1 local=127.0.0.1 $dtrace -c "/usr/sbin/ping -U $local" -qs /dev/stdin <ip_saddr == "$local" && args[2]->ip_daddr == "$local" && args[4]->ipv4_protocol == IPPROTO_UDP/ { ipsend++; } udp:::send /args[2]->ip_saddr == "$local" && args[2]->ip_daddr == "$local"/ { udpsend++; } ip:::receive /args[2]->ip_saddr == "$local" && args[2]->ip_daddr == "$local" && args[4]->ipv4_protocol == IPPROTO_UDP/ { ipreceive++; } END { printf("Minimum UDP events seen\n\n"); printf("ip:::send - %s\n", ipsend >= 1 ? "yes" : "no"); printf("ip:::receive - %s\n", ipreceive >= 1 ? "yes" : "no"); printf("udp:::send - %s\n", udpsend >= 1 ? "yes" : "no"); } EOF