9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# CDDL HEADER START
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9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# and limitations under the License.
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9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# CDDL HEADER END
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# Test tcp:::state-change and tcp:::{send,receive} by connecting to
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# the remote ssh service and sending a test message. This should result
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# in a "Protocol mismatch" response and a close of the connection.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# A number of state transition events along with tcp send and receive
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# events for the message should result.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# This may fail due to:
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 1. A change to the ip stack breaking expected probe behavior,
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# which is the reason we are testing.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 2. The lo0 interface missing or not up.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 3. The remote ssh service is not online.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 4. An unlikely race causes the unlocked global send/receive
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# variables to be corrupted.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# This test performs a TCP connection to the ssh service (port 22) and
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# checks that at least the following packet counts were traced:
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 4 x ip:::send (2 during the TCP handshake, the message, then a FIN)
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 4 x tcp:::send (2 during the TCP handshake, the messages, then a FIN)
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 3 x ip:::receive (1 during the TCP handshake, the response, then the FIN ACK)
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# 3 x tcp:::receive (1 during the TCP handshake, the response, then the FIN ACK)
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# For this test to work, we are assuming that the TCP handshake and
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire# TCP close will enter the IP code path and not use tcp fusion.
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire print -u2 "expected one argument: <dtrace-path>"
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguireif [[ ! -x $getaddr ]]; then
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire print -u2 "could not find or execute sub program: $getaddr"
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire use IO::Socket;
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire my \$s = IO::Socket::INET->new(
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire Proto => "tcp",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire PeerAddr => "$dest",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire PeerPort => $tcpport,
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire Timeout => 3);
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire die "Could not connect to host $dest port $tcpport" unless \$s;
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire print \$s "testing state machine transitions";
c090e5dfb10cc96e71e6b0f55bf98c18027b002cBryan Cantrill$dtrace -c 'perl test.pl' -qs /dev/stdin <<EODTRACE
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire ipsend = tcpsend = ipreceive = tcpreceive = 0;
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire connreq = connest = 0;
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire/args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest" &&
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire args[4]->ipv4_protocol == IPPROTO_TCP/
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire/args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest" &&
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire args[4]->tcp_dport == $tcpport/
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire/args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source" &&
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire args[4]->ipv4_protocol == IPPROTO_TCP/
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire ipreceive++;
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguiretcp:::receive
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire/args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source" &&
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire args[4]->tcp_sport == $tcpport/
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire tcpreceive++;
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguiretcp:::state-change
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire state_event[args[3]->tcps_state]++;
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguiretcp:::connect-request
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire/args[2]->ip_saddr == "$source" && args[2]->ip_daddr == "$dest" &&
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire args[4]->tcp_dport == $tcpport/
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguiretcp:::connect-established
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire/args[2]->ip_saddr == "$dest" && args[2]->ip_daddr == "$source" &&
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire args[4]->tcp_sport == $tcpport/
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("Minimum TCP events seen\n\n");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("ip:::send - %s\n", ipsend >= 4 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("ip:::receive - %s\n", ipreceive >= 3 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::send - %s\n", tcpsend >= 4 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::receive - %s\n", tcpreceive >= 3 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::state-change to syn-sent - %s\n",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire state_event[TCP_STATE_SYN_SENT] >=1 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::state-change to established - %s\n",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire state_event[TCP_STATE_ESTABLISHED] >= 1 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::state-change to fin-wait-1 - %s\n",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire state_event[TCP_STATE_FIN_WAIT_1] >= 1 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::state-change to fin-wait-2 - %s\n",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire state_event[TCP_STATE_FIN_WAIT_2] >= 1 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::state-change to time-wait - %s\n",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire state_event[TCP_STATE_TIME_WAIT] >= 1 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::connect-request - %s\n",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire connreq >=1 ? "yes" : "no");
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire printf("tcp:::connect-established - %s\n",
9cd928fe5e3ea4e05f64cfb380beb54b2623e7dcAlan Maguire connest >=1 ? "yes" : "no");