476 lines
12 KiB
Bash
Executable File
476 lines
12 KiB
Bash
Executable File
#
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# Copyright (c) 2014 Spectra Logic Corporation
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions, and the following disclaimer,
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# without modification.
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# 2. Redistributions in binary form must reproduce at minimum a disclaimer
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# substantially similar to the "NO WARRANTY" disclaimer below
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# ("Disclaimer") and any redistribution must be conditioned upon
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# including a substantially similar Disclaimer requirement for further
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# binary redistribution.
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#
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# NO WARRANTY
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGES.
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#
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# Authors: Alan Somers (Spectra Logic Corporation)
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#
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# $FreeBSD$
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atf_test_case create cleanup
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create_head()
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{
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atf_set "descr" "Create a lagg and assign an address"
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atf_set "require.user" "root"
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}
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create_body()
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{
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local TAP0 TAP1 LAGG MAC
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# Configure the lagg interface to use an RFC5737 nonrouteable addresses
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ADDR="192.0.2.2"
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MASK="24"
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TAP0=`get_tap`
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TAP1=`get_tap`
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LAGG=`get_lagg`
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# Create the lagg
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ifconfig $TAP0 up
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ifconfig $TAP1 up
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atf_check ifconfig $LAGG up laggport $TAP0 laggport $TAP1 \
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${ADDR}/${MASK}
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atf_check -o match:"inet ${ADDR}" ifconfig $LAGG
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atf_check -o match:"laggport: ${TAP0}" ifconfig $LAGG
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atf_check -o match:"laggport: ${TAP1}" ifconfig $LAGG
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# Check that all members have the same MAC
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MAC=`ifconfig $LAGG | awk '/ether/ {print $2}'`
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atf_check -o match:"ether ${MAC}" ifconfig $TAP0
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atf_check -o match:"ether ${MAC}" ifconfig $TAP1
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# Check that no members have an IPv6 link-local address. IPv6
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# link-local addresses should never be merged in any way to prevent
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# scope violation.
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atf_check -o not-match:"inet6 fe80:" ifconfig $TAP0
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atf_check -o not-match:"inet6 fe80:" ifconfig $TAP1
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}
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create_cleanup()
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{
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cleanup_tap_and_lagg
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}
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atf_test_case status_stress cleanup
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status_stress_head()
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{
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atf_set "descr" "Simultaneously query a lagg while also creating or destroying it."
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atf_set "require.user" "root"
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}
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status_stress_body()
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{
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local TAP0 TAP1 LAGG MAC
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# Configure the lagg interface to use an RFC5737 nonrouteable addresses
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ADDR="192.0.2.2"
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MASK="24"
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TAP0=`get_tap`
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TAP1=`get_tap`
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TAP2=`get_tap`
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TAP3=`get_tap`
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LAGG=`get_lagg`
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# Up the lagg's children
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ifconfig $TAP0 inet6 ifdisabled up
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ifconfig $TAP1 inet6 ifdisabled up
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ifconfig $TAP2 inet6 ifdisabled up
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ifconfig $TAP3 inet6 ifdisabled up
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# First thread: create and destroy the lagg
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while true; do
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ifconfig $LAGG destroy 2>&1
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ifconfig $LAGG create 2>/dev/null
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ifconfig $LAGG inet6 ifdisabled
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ifconfig $LAGG up laggport $TAP0 laggport $TAP1 laggport $TAP2\
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laggport $TAP3 ${ADDR}/${MASK} 2>/dev/null
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echo -n . >> creator_count.txt
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done &
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CREATOR_PID=$!
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# Second thread: Query the lagg's status
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while true; do
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ifconfig -am 2> /dev/null > /dev/null
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echo -n . >> querier_count.txt
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done &
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QUERIER_PID=$!
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sleep 60
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kill $CREATOR_PID
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kill $QUERIER_PID
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echo "Created the lagg `stat -f %z creator_count.txt` times."
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echo "Queried its status `stat -f %z querier_count.txt` times"
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}
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status_stress_cleanup()
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{
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cleanup_tap_and_lagg
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}
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atf_test_case create_destroy_stress cleanup
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create_destroy_stress_head()
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{
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atf_set "descr" "Simultaneously create and destroy a lagg"
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atf_set "require.user" "root"
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}
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create_destroy_stress_body()
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{
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local TAP0 TAP1 LAGG MAC
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atf_skip "Skipping this test because it easily panics the machine"
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TAP0=`get_tap`
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TAP1=`get_tap`
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TAP2=`get_tap`
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TAP3=`get_tap`
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LAGG=`get_lagg`
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# Up the lagg's children
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ifconfig $TAP0 inet6 ifdisabled up
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ifconfig $TAP1 inet6 ifdisabled up
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ifconfig $TAP2 inet6 ifdisabled up
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ifconfig $TAP3 inet6 ifdisabled up
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# First thread: create the lagg
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while true; do
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ifconfig $LAGG create 2>/dev/null && \
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echo -n . >> creator_count.txt
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done &
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CREATOR_PID=$!
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# Second thread: destroy the lagg
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while true; do
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ifconfig $LAGG destroy 2>/dev/null && \
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echo -n . >> destroyer_count.txt
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done &
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DESTROYER_PID=$!
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sleep 60
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kill $CREATOR_PID
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kill $DESTROYER_PID
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echo "Created the lagg `stat -f %z creator_count.txt` times."
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echo "Destroyed it `stat -f %z destroyer_count.txt` times."
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}
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create_destroy_stress_cleanup()
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{
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cleanup_tap_and_lagg
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}
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# This test regresses a panic that is particular to LACP. If the child's link
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# state changes while the lagg is being destroyed, lacp_linkstate can
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# use-after-free. The problem is compounded by two factors:
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# 1) In SpectraBSD, downing the parent will also down the child
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# 2) The cxgbe driver will show the link state as "no carrier" as soon as you
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# down the interface.
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# TeamTrack: P2_30328
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atf_test_case lacp_linkstate_destroy_stress cleanup
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lacp_linkstate_destroy_stress_head()
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{
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atf_set "descr" "Simultaneously destroy an LACP lagg and change its childrens link states"
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atf_set "require.user" "root"
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}
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lacp_linkstate_destroy_stress_body()
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{
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if [ "$(atf_config_get ci false)" = "true" ] && \
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[ "$(uname -p)" = "i386" ]; then
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atf_skip "https://bugs.freebsd.org/244168"
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fi
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local TAP0 TAP1 LAGG MAC SRCDIR
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# Configure the lagg interface to use an RFC5737 nonrouteable addresses
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ADDR="192.0.2.2"
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MASK="24"
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# ifconfig takes about 10ms to run. To increase race coverage,
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# randomly delay the two commands relative to each other by 5ms either
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# way.
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MEAN_SLEEP_SECONDS=.005
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MAX_SLEEP_USECS=10000
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TAP0=`get_tap`
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TAP1=`get_tap`
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LAGG=`get_lagg`
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# Up the lagg's children
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ifconfig $TAP0 inet6 ifdisabled up
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ifconfig $TAP1 inet6 ifdisabled up
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SRCDIR=$( atf_get_srcdir )
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while true; do
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ifconfig $LAGG inet6 ifdisabled
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# We must open the tap devices to change their link states
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cat /dev/$TAP0 > /dev/null &
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CAT0_PID=$!
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cat /dev/$TAP1 > /dev/null &
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CAT1_PID=$!
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ifconfig $LAGG up laggport $TAP0 laggport $TAP1 \
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${ADDR}/${MASK} 2> /dev/null &&
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{ sleep ${MEAN_SLEEP_SECONDS} && \
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kill $CAT0_PID &&
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kill $CAT1_PID &&
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echo -n . >> linkstate_count.txt ; } &
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{ ${SRCDIR}/randsleep ${MAX_SLEEP_USECS} && \
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ifconfig $LAGG destroy &&
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echo -n . >> destroy_count.txt ; } &
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wait
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ifconfig $LAGG create
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done &
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LOOP_PID=$!
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sleep 60
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kill $LOOP_PID
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echo "Disconnected the children `stat -f %z linkstate_count.txt` times."
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echo "Destroyed the lagg `stat -f %z destroy_count.txt` times."
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}
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lacp_linkstate_destroy_stress_cleanup()
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{
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cleanup_tap_and_lagg
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}
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atf_test_case up_destroy_stress cleanup
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up_destroy_stress_head()
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{
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atf_set "descr" "Simultaneously up and destroy a lagg"
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atf_set "require.user" "root"
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}
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up_destroy_stress_body()
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{
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local TAP0 TAP1 LAGG MAC SRCDIR
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atf_skip "Skipping this test because it panics the machine fairly often"
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# Configure the lagg interface to use an RFC5737 nonrouteable addresses
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ADDR="192.0.2.2"
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MASK="24"
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# ifconfig takes about 10ms to run. To increase race coverage,
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# randomly delay the two commands relative to each other by 5ms either
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# way.
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MEAN_SLEEP_SECONDS=.005
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MAX_SLEEP_USECS=10000
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TAP0=`get_tap`
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TAP1=`get_tap`
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TAP2=`get_tap`
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TAP3=`get_tap`
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LAGG=`get_lagg`
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# Up the lagg's children
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ifconfig $TAP0 inet6 ifdisabled up
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ifconfig $TAP1 inet6 ifdisabled up
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ifconfig $TAP2 inet6 ifdisabled up
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ifconfig $TAP3 inet6 ifdisabled up
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SRCDIR=$( atf_get_srcdir )
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while true; do
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ifconfig $LAGG inet6 ifdisabled
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{ sleep ${MEAN_SLEEP_SECONDS} && \
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ifconfig $LAGG up laggport $TAP0 laggport $TAP1 \
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laggport $TAP2 laggport $TAP3 \
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${ADDR}/${MASK} 2> /dev/null &&
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echo -n . >> up_count.txt ; } &
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{ ${SRCDIR}/randsleep ${MAX_SLEEP_USECS} && \
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ifconfig $LAGG destroy &&
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echo -n . >> destroy_count.txt ; } &
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wait
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ifconfig $LAGG create
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done &
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LOOP_PID=$!
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sleep 60
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kill $LOOP_PID
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echo "Upped the lagg `stat -f %z up_count.txt` times."
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echo "Destroyed it `stat -f %z destroy_count.txt` times."
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}
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up_destroy_stress_cleanup()
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{
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cleanup_tap_and_lagg
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}
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atf_test_case set_ether cleanup
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set_ether_head()
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{
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atf_set "descr" "Set a lagg's ethernet address"
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atf_set "require.user" "root"
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}
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set_ether_body()
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{
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local TAP0 TAP1 LAGG MAC
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# Configure the lagg interface to use an RFC5737 nonrouteable addresses
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ADDR="192.0.2.2"
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MASK="24"
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MAC="00:11:22:33:44:55"
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TAP0=`get_tap`
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TAP1=`get_tap`
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LAGG=`get_lagg`
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# Create the lagg
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ifconfig $TAP0 up
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ifconfig $TAP1 up
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atf_check ifconfig $LAGG up laggport $TAP0 laggport $TAP1 \
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${ADDR}/${MASK}
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# Change the lagg's ethernet address
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atf_check ifconfig $LAGG ether ${MAC}
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# Check that all members have the same MAC
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atf_check -o match:"ether ${MAC}" ifconfig $LAGG
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atf_check -o match:"ether ${MAC}" ifconfig $TAP0
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atf_check -o match:"ether ${MAC}" ifconfig $TAP1
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}
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set_ether_cleanup()
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{
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cleanup_tap_and_lagg
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}
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atf_test_case updown cleanup
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updown_head()
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{
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atf_set "descr" "upping or downing a lagg ups or downs its children"
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atf_set "require.user" "root"
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}
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updown_body()
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{
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local TAP0 TAP1 LAGG MAC
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atf_expect_fail "PR 226144 Upping a lagg interrface should automatically up its children"
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# Configure the lagg interface to use an RFC5737 nonrouteable addresses
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ADDR="192.0.2.2"
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MASK="24"
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MAC="00:11:22:33:44:55"
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TAP0=`get_tap`
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TAP1=`get_tap`
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LAGG=`get_lagg`
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# Create the lagg
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ifconfig $TAP0 up
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ifconfig $TAP1 up
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atf_check ifconfig $LAGG up laggport $TAP0 laggport $TAP1 \
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${ADDR}/${MASK}
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# Down the lagg
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ifconfig $LAGG down
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atf_check -o not-match:"flags=.*\<UP\>" ifconfig $LAGG
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atf_check -o not-match:"flags=.*\<UP\>" ifconfig $TAP0
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atf_check -o not-match:"flags=.*\<UP\>" ifconfig $TAP1
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# Up the lagg again
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ifconfig $LAGG up
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atf_check -o match:"flags=.*\<UP\>" ifconfig $LAGG
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atf_check -o match:"flags=.*\<UP\>" ifconfig $TAP0
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atf_check -o match:"flags=.*\<UP\>" ifconfig $TAP1
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# Check that no members have acquired an IPv6 link-local address by
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# virtue of being upped. IPv6 link-local addresses should never be
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# merged in any way to prevent scope violation.
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atf_check -o not-match:"inet6 fe80:" ifconfig $TAP0
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atf_check -o not-match:"inet6 fe80:" ifconfig $TAP1
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}
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updown_cleanup()
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{
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cleanup_tap_and_lagg
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}
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# Check for lock-order reversals. For best results, this test should be run
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# last.
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atf_test_case witness
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witness_head()
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{
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atf_set "descr" "Check witness(4) for lock-order reversals in if_lagg"
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}
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witness_body()
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{
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if [ "$(atf_config_get ci false)" = "true" ] && \
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[ "$(uname -p)" = "i386" ]; then
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atf_skip "https://bugs.freebsd.org/244163"
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fi
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if [ `sysctl -n debug.witness.watch` -ne 1 ]; then
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atf_skip "witness(4) is not enabled"
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fi
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if `sysctl -n debug.witness.badstacks | grep -q 'at lagg_'`; then
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sysctl debug.witness.badstacks
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atf_fail "Lock-order reversals involving if_lagg.c detected"
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fi
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}
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atf_init_test_cases()
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{
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atf_add_test_case create
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atf_add_test_case create_destroy_stress
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atf_add_test_case lacp_linkstate_destroy_stress
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atf_add_test_case set_ether
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atf_add_test_case status_stress
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atf_add_test_case up_destroy_stress
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atf_add_test_case updown
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# For best results, keep the witness test last
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atf_add_test_case witness
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}
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# Creates a new tap(4) interface, registers it for cleanup, and echoes it
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get_tap()
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{
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local TAPN=0
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while ! ifconfig tap${TAPN} create > /dev/null 2>&1; do
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if [ "$TAPN" -ge 8 ]; then
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atf_skip "Could not create a tap(4) interface"
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else
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TAPN=$(($TAPN + 1))
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fi
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done
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local TAPD=tap${TAPN}
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# Record the TAP device so we can clean it up later
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echo ${TAPD} >> "devices_to_cleanup"
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echo ${TAPD}
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}
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# Creates a new lagg(4) interface, registers it for cleanup, and echoes it
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get_lagg()
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{
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local LAGGN=0
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while ! ifconfig lagg${LAGGN} create > /dev/null 2>&1; do
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if [ "$LAGGN" -ge 8 ]; then
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atf_skip "Could not create a lagg(4) interface"
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else
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LAGGN=$(($LAGGN + 1))
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fi
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done
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local LAGGD=lagg${LAGGN}
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# Record the lagg device so we can clean it up later
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echo ${LAGGD} >> "devices_to_cleanup"
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echo ${LAGGD}
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}
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cleanup_tap_and_lagg()
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{
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local DEV
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for DEV in `cat "devices_to_cleanup"`; do
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ifconfig ${DEV} destroy
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done
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true
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}
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