1#!/usr/bin/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) 2010, Oracle and/or its affiliates. All rights reserved. 25# 26 27# 28# Test tcp:::state-change and tcp:::{send,receive} by connecting to 29# the remote ssh service and sending a test message. This should result 30# in a "Protocol mismatch" response and a close of the connection. 31# A number of state transition events along with tcp send and receive 32# events for the message should result. 33# 34# This may fail due to: 35# 36# 1. A change to the ip stack breaking expected probe behavior, 37# which is the reason we are testing. 38# 2. The lo0 interface missing or not up. 39# 3. The remote ssh service is not online. 40# 4. An unlikely race causes the unlocked global send/receive 41# variables to be corrupted. 42# 43# This test performs a TCP connection to the ssh service (port 22) and 44# checks that at least the following packet counts were traced: 45# 46# 4 x ip:::send (2 during the TCP handshake, the message, then a FIN) 47# 4 x tcp:::send (2 during the TCP handshake, the messages, then a FIN) 48# 3 x ip:::receive (1 during the TCP handshake, the response, then the FIN ACK) 49# 3 x tcp:::receive (1 during the TCP handshake, the response, then the FIN ACK) 50# 51# For this test to work, we are assuming that the TCP handshake and 52# TCP close will enter the IP code path and not use tcp fusion. 53# 54 55if (( $# != 1 )); then 56 print -u2 "expected one argument: <dtrace-path>" 57 exit 2 58fi 59 60dtrace=$1 61getaddr=./get.ipv4remote.pl 62tcpport=22 63DIR=/var/tmp/dtest.$$ 64 65if [[ ! -x $getaddr ]]; then 66 print -u2 "could not find or execute sub program: $getaddr" 67 exit 3 68fi 69$getaddr $tcpport | read source dest 70if (( $? != 0 )); then 71 exit 4 72fi 73 74mkdir $DIR 75cd $DIR 76 77cat > test.pl <<-EOPERL 78 use IO::Socket; 79 my \$s = IO::Socket::INET->new( 80 Proto => "tcp", 81 PeerAddr => "$dest", 82 PeerPort => $tcpport, 83 Timeout => 3); 84 die "Could not connect to host $dest port $tcpport" unless \$s; 85 print \$s "testing state machine transitions"; 86 close \$s; 87EOPERL 88 89$dtrace -c '/usr/bin/perl test.pl' -qs /dev/stdin <<EODTRACE 90BEGIN 91{ 92 ipsend = tcpsend = ipreceive = tcpreceive = 0; 93 connreq = connest = 0; 94} 95 96ip:::send 97/args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest" && 98 args[4]->ipv4_protocol == IPPROTO_TCP/ 99{ 100 ipsend++; 101} 102 103tcp:::send 104/args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest" && 105 args[4]->tcp_dport == $tcpport/ 106{ 107 tcpsend++; 108} 109 110ip:::receive 111/args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source" && 112 args[4]->ipv4_protocol == IPPROTO_TCP/ 113{ 114 ipreceive++; 115} 116 117tcp:::receive 118/args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source" && 119 args[4]->tcp_sport == $tcpport/ 120{ 121 tcpreceive++; 122} 123 124tcp:::state-change 125{ 126 state_event[args[3]->tcps_state]++; 127} 128 129tcp:::connect-request 130/args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest" && 131 args[4]->tcp_dport == $tcpport/ 132{ 133 connreq++; 134} 135 136tcp:::connect-established 137/args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source" && 138 args[4]->tcp_sport == $tcpport/ 139{ 140 connest++; 141} 142 143END 144{ 145 printf("Minimum TCP events seen\n\n"); 146 printf("ip:::send - %s\n", ipsend >= 4 ? "yes" : "no"); 147 printf("ip:::receive - %s\n", ipreceive >= 3 ? "yes" : "no"); 148 printf("tcp:::send - %s\n", tcpsend >= 4 ? "yes" : "no"); 149 printf("tcp:::receive - %s\n", tcpreceive >= 3 ? "yes" : "no"); 150 printf("tcp:::state-change to syn-sent - %s\n", 151 state_event[TCP_STATE_SYN_SENT] >=1 ? "yes" : "no"); 152 printf("tcp:::state-change to established - %s\n", 153 state_event[TCP_STATE_ESTABLISHED] >= 1 ? "yes" : "no"); 154 printf("tcp:::state-change to fin-wait-1 - %s\n", 155 state_event[TCP_STATE_FIN_WAIT_1] >= 1 ? "yes" : "no"); 156 printf("tcp:::state-change to fin-wait-2 - %s\n", 157 state_event[TCP_STATE_FIN_WAIT_2] >= 1 ? "yes" : "no"); 158 printf("tcp:::state-change to time-wait - %s\n", 159 state_event[TCP_STATE_TIME_WAIT] >= 1 ? "yes" : "no"); 160 printf("tcp:::connect-request - %s\n", 161 connreq >=1 ? "yes" : "no"); 162 printf("tcp:::connect-established - %s\n", 163 connest >=1 ? "yes" : "no"); 164} 165EODTRACE 166 167status=$? 168 169cd / 170/usr/bin/rm -rf $DIR 171 172exit $status 173