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#!/bin/ksh
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright 2015 Joyent, Inc.
#
#
# The purpose of this is to test the MTU property on VNICs, using both
# temporary and persistent properties. To do this, we create an
# Etherstub and then create various VNICs on top of it.
#
vm_arg0="$(basename $0)"
vm_stub="teststub$$"
vm_vnic="testvnic$$"
VM_MTU_MIN=576
VM_MTU_MAX=9000
fatal()
{
typeset msg="$*"
[[ -z "$msg" ]] && msg="failed"
echo "TEST_FAIL: $vm_arg0: $msg" >&2
# Try to clean up just in case
dladm delete-vnic $vm_vnic 2>/dev/null
dladm delete-etherstub $vm_stub 2>/dev/null
exit 1
}
#
# Validate that the MTU of the datalink dev has the MTU that we expect
#
validate_mtu()
{
typeset dev=$1
typeset mtu=$2
typeset val
[[ -z "$dev" ]] && fatal "missing required device"
[[ -z "$mtu" ]] && fatal "missing required mtu"
val=$(dladm show-linkprop -c -p mtu -o value $dev)
[[ $? -eq 0 ]] || fatal "failed to get MTU for $dev"
(( $val == $mtu )) || fatal \
"mtu mismatch on $dev: expected $mtu, got $val"
}
delete_stub()
{
dladm delete-etherstub $vm_stub || fatal \
"failed to delete stub $vm_stub"
}
create_stub()
{
dladm create-etherstub $vm_stub || fatal \
"failed to create stub"
validate_mtu $vm_stub $VM_MTU_MAX
}
delete_vnic()
{
dladm delete-vnic $vm_vnic || fatal "failed to delete vnic $vm_vnic"
}
test_vnic_pass()
{
typeset mtu=$1
typeset flags=$2
[[ -z "$mtu" ]] && fatal "missing required mtu"
dladm create-vnic $flags -l $vm_stub -p mtu=$mtu $vm_vnic || fatal \
"failed to create vnic: $vm_vnic"
validate_mtu "$vm_vnic" "$mtu"
delete_vnic
}
test_vnic_fail()
{
typeset mtu=$1
typeset flags=$2
[[ -z "$mtu" ]] && fatal "missing required mtu"
dladm create-vnic $flags -l $vm_stub -p mtu=$mtu \
$vm_vnic 2>/dev/null && fatal \
"created vnic with mtu $mtu, but failure expected"
}
test_pass()
{
typeset flags=$1
create_stub
test_vnic_pass 1500 $flags
test_vnic_pass 1400 $flags
test_vnic_pass $VM_MTU_MIN $flags
test_vnic_pass $VM_MTU_MAX $flags
test_vnic_fail $((($VM_MTU_MIN - 1))) $flags
test_vnic_fail $((($VM_MTU_MAX + 1))) $flags
delete_stub
}
test_pass "-t"
test_pass
echo "TEST PASS: $vm_arg0"
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