#!/bin/sh

################################################################################
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## Copyright (c) International Business Machines  Corp., 2005                 ##
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################################################################################
#
# File:
#   tcp4-uni-dsackoff01
#
# Description:
#   Verify that the kernel is not crashed with a TCP connection on an
#   unreliable to with the following condition:
#     - The version of IP is IPv4
#     - Network is not delayed
#     - IPsec is not used
#     - Disable window scaling
#     - Enable Nagle algorithm
#     - Disable TCP Duplicate SACK support
#     - Enable SACK Support
#     - Some packets are lost
#     - Disable TSO if it is avalable
#
#   *) This script may be read by the other test case
#
# Setup:
#   See ltp-yyyymmdd/testcases/network/stress/README
#
# Author:
#   Mitsuru Chinen <mitch@jp.ibm.com>
#
# History:
#	Oct 19 2005 - Created (Mitsuru Chinen)
#
#-----------------------------------------------------------------------
# Uncomment line below for debug output.
#trace_logic=${trace_logic:-"set -x"}
$trace_logic

# The test case ID, the test case count and the total number of test case
TCID=${TCID:-tcp4-uni-dsackoff01}
TST_TOTAL=1
TST_COUNT=1
export TCID
export TST_COUNT
export TST_TOTAL

# Test description
tst_resm TINFO "Verify that the kernel, when the Duplicate SACK support is off, is not crashed by a TCP connection on an unreliable network(Namely, some of the packet is lost, some of them is duplicated)."

# Disable DSACK support
DO_DSACK=false

# Make some packets are lost
DO_PACKET_LOSS=true

# Make some packets are duplicated
DO_PACKET_DUP=true

# Load tcp4-uni-basic01
NON_BASIC=true

. tcp4-uni-basic01

exit 0