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      1 #!/bin/sh
      2 # Copyright (c) 2014-2017 Oracle and/or its affiliates. All Rights Reserved.
      3 # Copyright (c) 2016-2017 Petr Vorel <pvorel (at] suse.cz>
      4 #
      5 # This program is free software; you can redistribute it and/or
      6 # modify it under the terms of the GNU General Public License as
      7 # published by the Free Software Foundation; either version 2 of
      8 # the License, or (at your option) any later version.
      9 #
     10 # This program is distributed in the hope that it would be useful,
     11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 # GNU General Public License for more details.
     14 #
     15 # You should have received a copy of the GNU General Public License
     16 # along with this program; if not, write the Free Software Foundation,
     17 # Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
     18 #
     19 # Author: Alexey Kodanev <alexey.kodanev (at] oracle.com>
     20 #
     21 
     22 [ -z "$TST_LIB_LOADED" ] && . test.sh
     23 
     24 init_ltp_netspace()
     25 {
     26 	local pid=
     27 
     28 	if [ ! -f /var/run/netns/ltp_ns ]; then
     29 		ROD ip li add name ltp_ns_veth1 type veth peer name ltp_ns_veth2
     30 		pid="$(ROD ns_create net,mnt)"
     31 		mkdir -p /var/run/netns
     32 		ROD ln -s /proc/$pid/ns/net /var/run/netns/ltp_ns
     33 		ROD ns_exec $pid net,mnt mount --make-rprivate /sys
     34 		ROD ns_exec $pid net,mnt mount -t sysfs none /sys
     35 		ROD ns_ifmove ltp_ns_veth1 $pid
     36 		ROD ns_exec $pid net,mnt ip li set lo up
     37 	fi
     38 
     39 	LHOST_IFACES="${LHOST_IFACES:-ltp_ns_veth2}"
     40 	RHOST_IFACES="${RHOST_IFACES:-ltp_ns_veth1}"
     41 
     42 	export TST_INIT_NETNS="no"
     43 
     44 	pid="$(echo $(readlink /var/run/netns/ltp_ns) | cut -f3 -d'/')"
     45 	export LTP_NETNS="${LTP_NETNS:-ns_exec $pid net,mnt}"
     46 
     47 	tst_restore_ipaddr
     48 	tst_restore_ipaddr rhost
     49 
     50 	tst_wait_ipv6_dad
     51 }
     52 
     53 # Run command on remote host.
     54 # Options:
     55 # -b run in background
     56 # -B run in background and save output to $TST_TMPDIR/bg.cmd
     57 # -s safe option, if something goes wrong, will exit with TBROK
     58 # -c specify command to run
     59 tst_rhost_run()
     60 {
     61 	local pre_cmd=
     62 	local post_cmd=' || echo RTERR'
     63 	local out=
     64 	local user="root"
     65 	local cmd=
     66 	local safe=0
     67 	local bg=
     68 
     69 	OPTIND=0
     70 
     71 	while getopts :bBsc:u: opt; do
     72 		case "$opt" in
     73 		b|B) [ "$TST_USE_NETNS" ] && pre_cmd= || pre_cmd="nohup"
     74 		   [ "$opt" = b ] && bg="/dev/null" || bg="$TST_TMPDIR/bg.cmd"
     75 		   post_cmd=" > $bg 2>&1 &"
     76 		   out="1> /dev/null"
     77 		;;
     78 		s) safe=1 ;;
     79 		c) cmd="$OPTARG" ;;
     80 		u) user="$OPTARG" ;;
     81 		*) tst_brkm TBROK "tst_rhost_run: unknown option: $OPTARG" ;;
     82 		esac
     83 	done
     84 
     85 	OPTIND=0
     86 
     87 	if [ -z "$cmd" ]; then
     88 		[ "$safe" -eq 1 ] && \
     89 			tst_brkm TBROK "tst_rhost_run: command not defined"
     90 		tst_resm TWARN "tst_rhost_run: command not defined"
     91 		return 1
     92 	fi
     93 
     94 	local output=
     95 	local ret=0
     96 	if [ -n "${TST_USE_SSH:-}" ]; then
     97 		output=`ssh -n -q $user@$RHOST "sh -c \
     98 			'$pre_cmd $cmd $post_cmd'" $out 2>&1 || echo 'RTERR'`
     99 	elif [ -n "$TST_USE_NETNS" ]; then
    100 		output=`$LTP_NETNS sh -c \
    101 			"$pre_cmd $cmd $post_cmd" $out 2>&1 || echo 'RTERR'`
    102 	else
    103 		output=`rsh -n -l $user $RHOST "sh -c \
    104 			'$pre_cmd $cmd $post_cmd'" $out 2>&1 || echo 'RTERR'`
    105 	fi
    106 	echo "$output" | grep -q 'RTERR$' && ret=1
    107 	if [ $ret -eq 1 ]; then
    108 		output=$(echo "$output" | sed 's/RTERR//')
    109 		[ "$safe" -eq 1 ] && \
    110 			tst_brkm TBROK "'$cmd' failed on '$RHOST': '$output'"
    111 	fi
    112 
    113 	[ -z "$out" -a -n "$output" ] && echo "$output"
    114 
    115 	return $ret
    116 }
    117 
    118 EXPECT_RHOST_PASS()
    119 {
    120 	tst_rhost_run -c "$*" > /dev/null
    121 	if [ $? -eq 0 ]; then
    122 		tst_resm TPASS "$* passed as expected"
    123 	else
    124 		tst_resm TFAIL "$* failed unexpectedly"
    125 	fi
    126 }
    127 
    128 EXPECT_RHOST_FAIL()
    129 {
    130 	tst_rhost_run -c "$* 2> /dev/null"
    131 	if [ $? -ne 0 ]; then
    132 		tst_resm TPASS "$* failed as expected"
    133 	else
    134 		tst_resm TFAIL "$* passed unexpectedly"
    135 	fi
    136 }
    137 
    138 # Get test interface names for local/remote host.
    139 # tst_get_ifaces [TYPE]
    140 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    141 tst_get_ifaces()
    142 {
    143 	local type="${1:-lhost}"
    144 	if [ "$type" = "lhost" ]; then
    145 		echo "$LHOST_IFACES"
    146 	else
    147 		echo "$RHOST_IFACES"
    148 	fi
    149 }
    150 
    151 # Get HW addresses from defined test interface names.
    152 # tst_get_hwaddrs [TYPE]
    153 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    154 tst_get_hwaddrs()
    155 {
    156 	local type="${1:-lhost}"
    157 	local addr=
    158 	local list=
    159 
    160 	for eth in $(tst_get_ifaces $type); do
    161 
    162 		local addr_path="/sys/class/net/${eth}/address"
    163 
    164 		case $type in
    165 		lhost) addr=$(cat $addr_path) ;;
    166 		rhost) addr=$(tst_rhost_run -s -c "cat $addr_path")
    167 		esac
    168 
    169 		[ -z "$list" ] && list="$addr" || list="$list $addr"
    170 	done
    171 	echo "$list"
    172 }
    173 
    174 # Get test HW address.
    175 # tst_hwaddr [TYPE] [LINK]
    176 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    177 # LINK: link number starting from 0. Default value is '0'.
    178 tst_hwaddr()
    179 {
    180 	local type="${1:-lhost}"
    181 	local link_num="${2:-0}"
    182 	local hwaddrs=
    183 	link_num=$(( $link_num + 1 ))
    184 	[ "$type" = "lhost" ] && hwaddrs=$LHOST_HWADDRS || hwaddrs=$RHOST_HWADDRS
    185 	echo "$hwaddrs" | awk '{ print $'"$link_num"' }'
    186 }
    187 
    188 # Get test interface name.
    189 # tst_iface [TYPE] [LINK]
    190 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    191 # LINK: link number starting from 0. Default value is '0'.
    192 tst_iface()
    193 {
    194 	local type="${1:-lhost}"
    195 	local link_num="${2:-0}"
    196 	link_num="$(( $link_num + 1 ))"
    197 	echo "$(tst_get_ifaces $type)" | awk '{ print $'"$link_num"' }'
    198 }
    199 
    200 # Blank for an IPV4 test; 6 for an IPV6 test.
    201 TST_IPV6=
    202 
    203 tst_read_opts()
    204 {
    205 	OPTIND=0
    206 	while getopts ":6" opt; do
    207 		case "$opt" in
    208 		6)
    209 			TST_IPV6=6;;
    210 		esac
    211 	done
    212 	OPTIND=0
    213 }
    214 
    215 tst_read_opts $*
    216 
    217 # Get IP address
    218 # tst_ipaddr [TYPE]
    219 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    220 tst_ipaddr()
    221 {
    222 	local type="${1:-lhost}"
    223 	if [ "$TST_IPV6" ]; then
    224 		[ "$type" = "lhost" ] && echo "$IPV6_LHOST" || echo "$IPV6_RHOST"
    225 	else
    226 		[ "$type" = "lhost" ] && echo "$IPV4_LHOST" || echo "$IPV4_RHOST"
    227 	fi
    228 }
    229 
    230 # Get IP address of unused network, specified either by type and counter
    231 # or by net and host.
    232 # tst_ipaddr_un [-cCOUNTER] [TYPE]
    233 # tst_ipaddr_un NET_ID [HOST_ID]
    234 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    235 # COUNTER: Integer value for counting HOST_ID and NET_ID. Default is 1.
    236 # NET_ID: Integer or hex value of net. For IPv4 is 3rd octet, for IPv6
    237 # is 3rd hextet.
    238 # HOST_ID: Integer or hex value of host. For IPv4 is 4th octet, for
    239 # IPv6 is the last hextet. Default value is 0.
    240 tst_ipaddr_un()
    241 {
    242 	local counter host_id net_id max_host_id max_net_id tmp type
    243 	local OPTIND
    244 
    245 	while getopts "c:" opt; do
    246 		case $opt in
    247 			c) counter="$OPTARG";;
    248 		esac
    249 	done
    250 	shift $(($OPTIND - 1))
    251 
    252 	[ "$TST_IPV6" ] && max_net_id=65535 || max_net_id=255
    253 
    254 	if [ $# -eq 0 -o "$1" = "lhost" -o "$1" = "rhost" ]; then
    255 		[ -z "$counter" ] && counter=1
    256 		[ $counter -lt 1 ] && counter=1
    257 		type="${1:-lhost}"
    258 		max_host_id=$((max_net_id - 1))
    259 		tmp=$((counter * 2))
    260 		[ "$type" = "rhost" ] && tmp=$((tmp - 1))
    261 
    262 		host_id=$((tmp % max_host_id))
    263 		net_id=$((tmp / max_host_id))
    264 
    265 		if [ $host_id -eq 0 ]; then
    266 			host_id=$max_host_id
    267 			net_id=$((net_id - 1))
    268 		fi
    269 	else
    270 		net_id="$1"
    271 		host_id="${2:-0}"
    272 		if [ "$TST_IPV6" ]; then
    273 			net_id=$(printf %d $net_id)
    274 			host_id=$(printf %d $host_id)
    275 		fi
    276 		[ $net_id -lt 0 ] && net_id=0
    277 		[ $host_id -lt 0 ] && host_id=1
    278 	fi
    279 
    280 	net_id=$((net_id % max_net_id))
    281 	host_id=$((host_id % max_net_id))
    282 
    283 	if [ -z "$TST_IPV6" ]; then
    284 		echo "${IPV4_NET16_UNUSED}.${net_id}.${host_id}"
    285 		return
    286 	fi
    287 
    288 	[ $host_id -gt 0 ] && host_id="$(printf %x $host_id)" || host_id=
    289 	[ $net_id -gt 0 ] && net_id="$(printf %x $net_id)" || net_id=
    290 	[ "$net_id" ] && net_id=":$net_id"
    291 	echo "${IPV6_NET32_UNUSED}${net_id}::${host_id}"
    292 }
    293 
    294 # tst_init_iface [TYPE] [LINK]
    295 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    296 # LINK: link number starting from 0. Default value is '0'.
    297 tst_init_iface()
    298 {
    299 	local type="${1:-lhost}"
    300 	local link_num="${2:-0}"
    301 	local iface="$(tst_iface $type $link_num)"
    302 	tst_resm TINFO "initialize '$type' '$iface' interface"
    303 
    304 	if [ "$type" = "lhost" ]; then
    305 		ip xfrm policy flush || return $?
    306 		ip xfrm state flush || return $?
    307 		ip link set $iface down || return $?
    308 		ip route flush dev $iface || return $?
    309 		ip addr flush dev $iface || return $?
    310 		ip link set $iface up
    311 		return $?
    312 	fi
    313 
    314 	tst_rhost_run -c "ip xfrm policy flush" || return $?
    315 	tst_rhost_run -c "ip xfrm state flush" || return $?
    316 	tst_rhost_run -c "ip link set $iface down" || return $?
    317 	tst_rhost_run -c "ip route flush dev $iface" || return $?
    318 	tst_rhost_run -c "ip addr flush dev $iface" || return $?
    319 	tst_rhost_run -c "ip link set $iface up"
    320 }
    321 
    322 # tst_add_ipaddr [TYPE] [LINK]
    323 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    324 # LINK: link number starting from 0. Default value is '0'.
    325 tst_add_ipaddr()
    326 {
    327 	local type="${1:-lhost}"
    328 	local link_num="${2:-0}"
    329 	local mask
    330 
    331 	if [ "$TST_IPV6" ]; then
    332 		[ "$type" = "lhost" ] && mask=$IPV6_LPREFIX || mask=$IPV6_RPREFIX
    333 	else
    334 		[ "$type" = "lhost" ] && mask=$IPV4_LPREFIX || mask=$IPV4_RPREFIX
    335 	fi
    336 
    337 	local iface=$(tst_iface $type $link_num)
    338 
    339 	if [ $type = "lhost" ]; then
    340 		tst_resm TINFO "set local addr $(tst_ipaddr)/$mask"
    341 		ip addr add $(tst_ipaddr)/$mask dev $iface
    342 		return $?
    343 	fi
    344 
    345 	tst_resm TINFO "set remote addr $(tst_ipaddr rhost)/$mask"
    346 	tst_rhost_run -c "ip addr add $(tst_ipaddr rhost)/$mask dev $iface"
    347 }
    348 
    349 # tst_restore_ipaddr [TYPE] [LINK]
    350 # Restore default ip addresses defined in network.sh
    351 # TYPE: { lhost | rhost }; Default value is 'lhost'.
    352 # LINK: link number starting from 0. Default value is '0'.
    353 tst_restore_ipaddr()
    354 {
    355 	local type="${1:-lhost}"
    356 	local link_num="${2:-0}"
    357 
    358 	tst_init_iface $type $link_num || return $?
    359 
    360 	local ret=0
    361 	local backup_tst_ipv6=$TST_IPV6
    362 	TST_IPV6= tst_add_ipaddr $type $link_num || ret=$?
    363 	TST_IPV6=6 tst_add_ipaddr $type $link_num || ret=$?
    364 	TST_IPV6=$backup_tst_ipv6
    365 
    366 	return $ret
    367 }
    368 
    369 # tst_wait_ipv6_dad [LHOST_IFACE] [RHOST_IFACE]
    370 # wait for IPv6 DAD completion
    371 tst_wait_ipv6_dad()
    372 {
    373 	local ret=
    374 	local i=
    375 	local iface_loc=${1:-$(tst_iface)}
    376 	local iface_rmt=${2:-$(tst_iface rhost)}
    377 
    378 	for i in $(seq 1 50); do
    379 		ip a sh $iface_loc | grep -q tentative
    380 		ret=$?
    381 
    382 		tst_rhost_run -c "ip a sh $iface_rmt | grep -q tentative"
    383 
    384 		[ $ret -ne 0 -a $? -ne 0 ] && return
    385 
    386 		[ $(($i % 10)) -eq 0 ] && \
    387 			tst_resm TINFO "wait for IPv6 DAD completion $((i / 10))/5 sec"
    388 
    389 		tst_sleep 100ms
    390 	done
    391 }
    392 
    393 tst_dump_rhost_cmd()
    394 {
    395 	tst_rhost_run -c "cat $TST_TMPDIR/bg.cmd"
    396 }
    397 
    398 # Run network load test, see 'netstress -h' for option description
    399 tst_netload()
    400 {
    401 	local rfile="tst_netload.res"
    402 	local expect_res="pass"
    403 	local ret=0
    404 	local type="tcp"
    405 	local hostopt=
    406 	local setup_srchost=0
    407 	# common options for client and server
    408 	local cs_opts=
    409 
    410 	local c_num="${TST_NETLOAD_CLN_NUMBER:-2}"
    411 	local c_requests="${TST_NETLOAD_CLN_REQUESTS:-500000}"
    412 	local c_opts=
    413 
    414 	# number of server replies after which TCP connection is closed
    415 	local s_replies="${TST_NETLOAD_MAX_SRV_REPLIES:-500000}"
    416 	local s_opts=
    417 
    418 	OPTIND=0
    419 	while getopts :a:H:d:n:N:r:R:S:b:t:T:fFe:m:A: opt; do
    420 		case "$opt" in
    421 		a) c_num="$OPTARG" ;;
    422 		H) c_opts="${c_opts}-H $OPTARG "
    423 		   hostopt="$OPTARG" ;;
    424 		d) rfile="$OPTARG" ;;
    425 		n) c_opts="${c_opts}-n $OPTARG " ;;
    426 		N) c_opts="${c_opts}-N $OPTARG " ;;
    427 		r) c_requests="$OPTARG" ;;
    428 		A) c_opts="${c_opts}-A $OPTARG " ;;
    429 		R) s_replies="$OPTARG" ;;
    430 		S) c_opts="${c_opts}-S $OPTARG "
    431 		   setup_srchost=1 ;;
    432 		b) cs_opts="${cs_opts}-b $OPTARG " ;;
    433 		t) cs_opts="${cs_opts}-t $OPTARG " ;;
    434 		T) cs_opts="${cs_opts}-T $OPTARG "
    435 		   type="$OPTARG" ;;
    436 		m) cs_opts="${cs_opts}-m $OPTARG " ;;
    437 		f) cs_opts="${cs_opts}-f " ;;
    438 		F) cs_opts="${cs_opts}-F " ;;
    439 		e) expect_res="$OPTARG" ;;
    440 		*) tst_brkm TBROK "tst_netload: unknown option: $OPTARG" ;;
    441 		esac
    442 	done
    443 	OPTIND=0
    444 
    445 	[ "$setup_srchost" = 1 ] && s_opts="${s_opts}-S $hostopt "
    446 
    447 	local expect_ret=0
    448 	[ "$expect_res" != "pass" ] && expect_ret=1
    449 
    450 	local ptype="stream"
    451 	[ "$type" = "udp" ] && ptype="dgram"
    452 
    453 	local port=$(tst_rhost_run -c "tst_get_unused_port ipv6 $ptype")
    454 	[ $? -ne 0 ] && tst_brkm TBROK "failed to get unused port"
    455 
    456 	tst_rhost_run -c "pkill -9 netstress\$"
    457 
    458 	c_opts="${cs_opts}${c_opts}-a $c_num -r $c_requests -d $rfile -g $port"
    459 	s_opts="${cs_opts}${s_opts}-R $s_replies -g $port"
    460 
    461 	tst_resm TINFO "run server 'netstress $s_opts'"
    462 	tst_rhost_run -s -B -c "netstress $s_opts"
    463 
    464 	tst_resm TINFO "check that server port in 'LISTEN' state"
    465 	local sec_waited=
    466 
    467 	local sock_cmd=
    468 	if [ "$type" = "sctp" ]; then
    469 		sock_cmd="netstat -naS | grep $port | grep -q LISTEN"
    470 	else
    471 		sock_cmd="ss -ln$(echo $type | head -c1) | grep -q $port"
    472 	fi
    473 
    474 	for sec_waited in $(seq 1 1200); do
    475 		tst_rhost_run -c "$sock_cmd" && break
    476 		if [ $sec_waited -eq 1200 ]; then
    477 			tst_dump_rhost_cmd
    478 			tst_rhost_run -c "ss -dutnp | grep $port"
    479 			tst_brkm TFAIL "server not in LISTEN state"
    480 		fi
    481 		tst_sleep 100ms
    482 	done
    483 
    484 	tst_resm TINFO "run client 'netstress -l $c_opts'"
    485 	netstress -l $c_opts > tst_netload.log 2>&1 || ret=1
    486 	tst_rhost_run -c "pkill -9 netstress\$"
    487 
    488 	if [ "$expect_ret" -ne "$ret" ]; then
    489 		tst_dump_rhost_cmd
    490 		cat tst_netload.log
    491 		tst_brkm TFAIL "expected '$expect_res' but ret: '$ret'"
    492 	fi
    493 
    494 	if [ "$ret" -eq 0 ]; then
    495 		if [ ! -f $rfile ]; then
    496 			tst_dump_rhost_cmd
    497 			cat tst_netload.log
    498 			tst_brkm TFAIL "can't read $rfile"
    499 		fi
    500 		tst_resm TPASS "netstress passed, time spent '$(cat $rfile)' ms"
    501 	else
    502 		tst_resm TPASS "netstress failed as expected"
    503 	fi
    504 
    505 	return $ret
    506 }
    507 
    508 # tst_ping [IFACE] [DST ADDR] [MESSAGE SIZE ARRAY]
    509 # Check icmp connectivity
    510 # IFACE: source interface name
    511 # DST ADDR: destination IPv4 or IPv6 address
    512 # MESSAGE SIZE ARRAY: message size array
    513 tst_ping()
    514 {
    515 	# The max number of ICMP echo request
    516 	PING_MAX="${PING_MAX:-500}"
    517 
    518 	local src_iface="${1:-$(tst_iface)}"
    519 	local dst_addr="${2:-$(tst_ipaddr rhost)}"; shift $(( $# >= 2 ? 2 : 0 ))
    520 	local msg_sizes="$*"
    521 	local msg="tst_ping IPv${TST_IPV6:-4} iface $src_iface, msg_size"
    522 	local ret=0
    523 
    524 	# ping cmd use 56 as default message size
    525 	for size in ${msg_sizes:-"56"}; do
    526 		ping$TST_IPV6 -I $src_iface -c $PING_MAX $dst_addr \
    527 			-s $size -i 0 > /dev/null 2>&1
    528 		ret=$?
    529 		if [ $ret -eq 0 ]; then
    530 			tst_resm TPASS "$msg $size: pass"
    531 		else
    532 			tst_resm TFAIL "$msg $size: fail"
    533 			break
    534 		fi
    535 	done
    536 	return $ret
    537 }
    538 
    539 # tst_icmp -t TIMEOUT -s MESSAGE_SIZE_ARRAY OPTS
    540 # TIMEOUT: total time for the test in seconds
    541 # OPTS: additional options for ns-icmpv4|6-sender tool
    542 tst_icmp()
    543 {
    544 	local timeout=1
    545 	local msg_sizes=56
    546 	local opts=
    547 	local num=
    548 	local ret=0
    549 	local ver="${TST_IPV6:-4}"
    550 
    551 	OPTIND=0
    552 	while getopts :t:s: opt; do
    553 		case "$opt" in
    554 		t) timeout="$OPTARG" ;;
    555 		s) msg_sizes="$OPTARG" ;;
    556 		*) opts="-$OPTARG $opts" ;;
    557 		esac
    558 	done
    559 	OPTIND=0
    560 
    561 	local num=$(echo "$msg_sizes" | wc -w)
    562 	timeout="$(($timeout / $num))"
    563 	[ "$timeout" -eq 0 ] && timeout=1
    564 
    565 	opts="${opts}-I $(tst_iface) -S $(tst_ipaddr) -D $(tst_ipaddr rhost) "
    566 	opts="${opts}-M $(tst_hwaddr rhost) -t $timeout"
    567 
    568 	for size in $msg_sizes; do
    569 		ns-icmpv${ver}_sender -s $size $opts
    570 		ret=$?
    571 		if [ $ret -eq 0 ]; then
    572 			tst_resm TPASS "'ns-icmpv${ver}_sender -s $size $opts' pass"
    573 		else
    574 			tst_resm TFAIL "'ns-icmpv${ver}_sender -s $size $opts' fail"
    575 			break
    576 		fi
    577 	done
    578 	return $ret
    579 }
    580 
    581 # tst_set_sysctl NAME VALUE [safe]
    582 # It can handle netns case when sysctl not namespaceified.
    583 tst_set_sysctl()
    584 {
    585 	local name="$1"
    586 	local value="$2"
    587 	local safe=
    588 	[ "$3" = "safe" ] && safe="-s"
    589 
    590 	local add_opt=
    591 	[ "$TST_USE_NETNS" = "yes" ] && add_opt="-e"
    592 
    593 	if [ "$safe" ]; then
    594 		ROD sysctl -qw $name=$value
    595 	else
    596 		sysctl -qw $name=$value
    597 	fi
    598 
    599 	tst_rhost_run $safe -c "sysctl -qw $add_opt $name=$value"
    600 }
    601 
    602 tst_cleanup_rhost()
    603 {
    604 	tst_rhost_run -c "rm -rf $TST_TMPDIR"
    605 }
    606 
    607 # Management Link
    608 [ -z "$RHOST" ] && TST_USE_NETNS="yes"
    609 export RHOST="$RHOST"
    610 export PASSWD="${PASSWD:-}"
    611 # Don't use it in new tests, use tst_rhost_run() from test_net.sh instead.
    612 export LTP_RSH="${LTP_RSH:-rsh -n}"
    613 
    614 # Test Links
    615 # IPV{4,6}_{L,R}HOST can be set with or without prefix (e.g. IP or IP/prefix),
    616 # but if you use IP/prefix form, /prefix will be removed by tst_net_vars.
    617 IPV4_LHOST="${IPV4_LHOST:-10.0.0.2/24}"
    618 IPV4_RHOST="${IPV4_RHOST:-10.0.0.1/24}"
    619 IPV6_LHOST="${IPV6_LHOST:-fd00:1:1:1::2/64}"
    620 IPV6_RHOST="${IPV6_RHOST:-fd00:1:1:1::1/64}"
    621 
    622 # tst_net_ip_prefix
    623 # Strip prefix from IP address and save both If no prefix found sets
    624 # default prefix.
    625 #
    626 # tst_net_iface_prefix reads prefix and interface from rtnetlink.
    627 # If nothing found sets default prefix value.
    628 #
    629 # tst_net_vars exports environment variables related to test links and
    630 # networks that aren't reachable through the test links.
    631 #
    632 # For full list of exported environment variables see:
    633 # tst_net_ip_prefix -h
    634 # tst_net_iface_prefix -h
    635 # tst_net_vars -h
    636 if [ -z "$TST_PARSE_VARIABLES" ]; then
    637 	eval $(tst_net_ip_prefix $IPV4_LHOST || echo "exit $?")
    638 	eval $(tst_net_ip_prefix -r $IPV4_RHOST || echo "exit $?")
    639 	eval $(tst_net_ip_prefix $IPV6_LHOST || echo "exit $?")
    640 	eval $(tst_net_ip_prefix -r $IPV6_RHOST || echo "exit $?")
    641 fi
    642 
    643 [ -n "$TST_USE_NETNS" -a "$TST_INIT_NETNS" != "no" ] && init_ltp_netspace
    644 
    645 if [ -z "$TST_PARSE_VARIABLES" ]; then
    646 	eval $(tst_net_iface_prefix $IPV4_LHOST || echo "exit $?")
    647 	eval $(tst_rhost_run -c 'tst_net_iface_prefix -r '$IPV4_RHOST \
    648 		|| echo "exit $?")
    649 	eval $(tst_net_iface_prefix $IPV6_LHOST || echo "exit $?")
    650 	eval $(tst_rhost_run -c 'tst_net_iface_prefix -r '$IPV6_RHOST \
    651 		|| echo "exit $?")
    652 
    653 	eval $(tst_net_vars $IPV4_LHOST/$IPV4_LPREFIX \
    654 		$IPV4_RHOST/$IPV4_RPREFIX || echo "exit $?")
    655 	eval $(tst_net_vars $IPV6_LHOST/$IPV6_LPREFIX \
    656 		$IPV6_RHOST/$IPV6_RPREFIX || echo "exit $?")
    657 
    658 	tst_resm TINFO "Network config (local -- remote):"
    659 	tst_resm TINFO "$LHOST_IFACES -- $RHOST_IFACES"
    660 	tst_resm TINFO "$IPV4_LHOST/$IPV4_LPREFIX -- $IPV4_RHOST/$IPV4_RPREFIX"
    661 	tst_resm TINFO "$IPV6_LHOST/$IPV6_LPREFIX -- $IPV6_RHOST/$IPV6_RPREFIX"
    662 	export TST_PARSE_VARIABLES="yes"
    663 fi
    664 
    665 export HTTP_DOWNLOAD_DIR="${HTTP_DOWNLOAD_DIR:-/var/www/html}"
    666 export FTP_DOWNLOAD_DIR="${FTP_DOWNLOAD_DIR:-/var/ftp}"
    667 export FTP_UPLOAD_DIR="${FTP_UPLOAD_DIR:-/var/ftp/pub}"
    668 export FTP_UPLOAD_URLDIR="${FTP_UPLOAD_URLDIR:-pub}"
    669 
    670 # network/stress tests require additional parameters
    671 export NS_DURATION="${NS_DURATION:-720}"
    672 export NS_TIMES="${NS_TIMES:-2000}"
    673 export CONNECTION_TOTAL="${CONNECTION_TOTAL:-4000}"
    674 export IP_TOTAL="${IP_TOTAL:-2000}"
    675 export IP_TOTAL_FOR_TCPIP="${IP_TOTAL_FOR_TCPIP:-100}"
    676 export ROUTE_TOTAL="${ROUTE_TOTAL:-2000}"
    677 export MTU_CHANGE_TIMES="${MTU_CHANGE_TIMES:-1000}"
    678 export IF_UPDOWN_TIMES="${IF_UPDOWN_TIMES:-2000}"
    679 export DOWNLOAD_BIGFILESIZE="${DOWNLOAD_BIGFILESIZE:-2147483647}"
    680 export DOWNLOAD_REGFILESIZE="${DOWNLOAD_REGFILESIZE:-1048576}"
    681 export UPLOAD_BIGFILESIZE="${UPLOAD_BIGFILESIZE:-2147483647}"
    682 export UPLOAD_REGFILESIZE="${UPLOAD_REGFILESIZE:-1024}"
    683 export MCASTNUM_NORMAL="${MCASTNUM_NORMAL:-20}"
    684 export MCASTNUM_HEAVY="${MCASTNUM_HEAVY:-4000}"
    685 
    686 # Warning: make sure to set valid interface names and IP addresses below.
    687 # Set names for test interfaces, e.g. "eth0 eth1"
    688 # This is fallback for LHOST_IFACES in case tst_net_vars finds nothing or we
    689 # want to use more ifaces.
    690 export LHOST_IFACES="${LHOST_IFACES:-eth0}"
    691 export RHOST_IFACES="${RHOST_IFACES:-eth0}"
    692 
    693 # Set corresponding HW addresses, e.g. "00:00:00:00:00:01 00:00:00:00:00:02"
    694 export LHOST_HWADDRS="${LHOST_HWADDRS:-$(tst_get_hwaddrs lhost)}"
    695 export RHOST_HWADDRS="${RHOST_HWADDRS:-$(tst_get_hwaddrs rhost)}"
    696 
    697 # More information about network parameters can be found
    698 # in the following document: testcases/network/stress/README
    699 
    700 if [ "$TST_NEEDS_TMPDIR" = 1 ]; then
    701 	tst_tmpdir
    702 	tst_rhost_run -c "mkdir -p $TST_TMPDIR"
    703 	tst_rhost_run -c "chmod 777 $TST_TMPDIR"
    704 	export TST_TMPDIR_RHOST=1
    705 fi
    706