usr/src/cmd/dtrace/test/tst/common/ip/tst.ipv4remotetcp.ksh

   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) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  25 #
  26
  27 #
  28 # Test {tcp,ip}:::{send,receive} of IPv4 TCP to a remote host.
  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 ssh.
  36 # 4. An unlikely race causes the unlocked global send/receive
  37 #    variables to be corrupted.
  38 #
  39 # This test performs a TCP connection and checks that at least the
  40 # following packet counts were traced:
  41 #
  42 # 3 x ip:::send (2 during the TCP handshake, then a FIN)
  43 # 3 x tcp:::send (2 during the TCP handshake, then a FIN)
  44 # 2 x ip:::receive (1 during the TCP handshake, then the FIN ACK)
  45 # 2 x tcp:::receive (1 during the TCP handshake, then the FIN ACK)
  46 #
  47
  48 if (( $# != 1 )); then
  49         print -u2 "expected one argument: <dtrace-path>"
  50         exit 2
  51 fi
  52
  53 dtrace=$1
  54 getaddr=./get.ipv4remote.pl
  55 tcpport=22
  56 DIR=/var/tmp/dtest.$$
  57
  58 if [[ ! -x $getaddr ]]; then
  59         print -u2 "could not find or execute sub program: $getaddr"
  60         exit 3
  61 fi
  62 $getaddr $tcpport | read source dest
  63 if (( $? != 0 )); then
  64         exit 4
  65 fi
  66
  67 mkdir $DIR
  68 cd $DIR
  69
  70 cat > test.pl <<-EOPERL
  71         use IO::Socket;
  72         my \$s = IO::Socket::INET->new(
  73             Proto => "tcp",
  74             PeerAddr => "$dest",
  75             PeerPort => $tcpport,
  76             Timeout => 3);
  77         die "Could not connect to host $dest port $tcpport" unless \$s;
  78         close \$s;
  79 EOPERL
  80
  81 $dtrace -c 'perl test.pl' -qs /dev/stdin <<EODTRACE
  82 BEGIN
  83 {
  84         ipsend = tcpsend = ipreceive = tcpreceive = 0;
  85 }
  86
  87 ip:::send
  88 /args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest" &&
  89     args[4]->ipv4_protocol == IPPROTO_TCP/
  90 {
  91         ipsend++;
  92 }
  93
  94 tcp:::send
  95 /args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest"/
  96 {
  97         tcpsend++;
  98 }
  99
 100 ip:::receive
 101 /args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source" &&
 102     args[4]->ipv4_protocol == IPPROTO_TCP/
 103 {
 104         ipreceive++;
 105 }
 106
 107 tcp:::receive
 108 /args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source"/
 109 {
 110         tcpreceive++;
 111 }
 112
 113 END
 114 {
 115         printf("Minimum TCP events seen\n\n");
 116         printf("ip:::send - %s\n", ipsend >= 3 ? "yes" : "no");
 117         printf("ip:::receive - %s\n", ipreceive >= 2 ? "yes" : "no");
 118         printf("tcp:::send - %s\n", tcpsend >= 3 ? "yes" : "no");
 119         printf("tcp:::receive - %s\n", tcpreceive >= 2 ? "yes" : "no");
 120 }
 121 EODTRACE
 122
 123 status=$?
 124
 125 cd /
 126 /usr/bin/rm -rf $DIR
 127
 128 exit $?