sysconfig/network-scripts/functions.network

   1 #!/bin/sh - keep it for file(1) to get bourne shell script result
   2 #
   3 # $Id$
   4 #
   5 # This is not a shell script; it provides functions to network scripts
   6 # that source it.
   7
   8 source_config ()
   9 {
  10         typeset foundconfig=0
  11
  12         DEVNAME=${CONFIG##*/}
  13         DEVNAME=${DEVNAME##ifcfg-}
  14         DEVNAME=${DEVNAME##tnlcfg-}
  15
  16         if [[ "$CONFIG" = /* ]]; then
  17                 if [ -f "$CONFIG" ] ; then
  18                         . "$CONFIG"
  19                         foundconfig=1
  20                 fi
  21         elif [ -f "/etc/sysconfig/interfaces/$CONFIG" ] ; then
  22                 . "/etc/sysconfig/interfaces/$CONFIG"
  23                 foundconfig=1
  24         fi
  25
  26         # This is sanity check so that if you've copied ifcfg-eth0 to ifcfg-eth1
  27         # and forgot to alter DEVICE= line you won't accidentally bring down eth0
  28         # while executing ifdown eth1. We do that only if configuration file exists
  29         # (sometimes ifcfg-xyz isn't needed at all like server-side pppoe pppX interfaces)
  30         if [ "$foundconfig" -eq "1" -a "$DEVICE" -a  "$DEVNAME" != "$DEVICE" ]; then
  31                 echo >&2 "$0: DEVICE specified in $CONFIG does not match filename. Aborting!"
  32                 exit 1
  33         fi
  34
  35         if [ "${PREFIX}" ] && [[ "$IPADDR" != */* ]]; then
  36                 IPADDR="$IPADDR/$PREFIX"
  37         fi
  38 }
  39
  40 do_netreport ()
  41 {
  42         # Notify programs that have requested notification
  43         ( cd /var/run/netreport || exit
  44         for i in *; do
  45                 [ -f $i ] && kill -SIGIO $i >/dev/null 2>&1 || \
  46                         rm -f $i >/dev/null 2>&1
  47         done
  48         )
  49 }
  50
  51 need_hostname()
  52 {
  53         local hostname=$(hostname)
  54         if [ "$hostname" = "(none)" -o "$hostname" = "localhost" -o "$hostname" = "localhost.localdomain" ]; then
  55                 NEEDHOSTNAME=yes
  56         else
  57                 unset NEEDHOSTNAME
  58         fi
  59 }
  60
  61 set_hostname()
  62 {
  63         typeset hostname domain
  64
  65         hostname=$(echo $1 | awk ' { gsub(/\..*$/,NIL); print $0; } ')
  66         domain=$(echo $1 | awk ' { sub(/^[^\.]*\./,NIL); print $0; } ')
  67
  68         if [ "$hostname" ]; then
  69                 echo "$hostname" > /etc/HOSTNAME
  70                 hostname $hostname
  71         fi
  72
  73         if [ "$domain" ]; then
  74                 # XXX umask and possible /etc/resolv.conf symlink breakage
  75                 > /etc/resolv.conf.new
  76                 if ! grep -q "search $domain" /etc/resolv.conf ; then
  77                         echo "search $domain" >> /etc/resolv.conf.new
  78                 fi
  79                 echo "domain $domain" >> /etc/resolv.conf.new
  80                 grep -v "^domain " /etc/resolv.conf >> /etc/resolv.conf.new
  81                 mv -f /etc/resolv.conf.new /etc/resolv.conf
  82         fi
  83 }
  84
  85 set_dhcpclient()
  86 {
  87         if [ "$BOOTPROTO" = "bootp" -o "$BOOTPROTO" = "pump" ]; then
  88                 DHCP_CLIENT=/sbin/pump
  89         fi
  90
  91         if [ -z "$DHCP_CLIENT" ]; then
  92                 if [ -x /sbin/dhcpcd ]; then
  93                         DHCP_CLIENT=/sbin/dhcpcd
  94                 elif [ -x /sbin/dhclient ]; then
  95                         DHCP_CLIENT=/sbin/dhclient
  96                 elif [ -x /sbin/dhcpxd ]; then
  97                         DHCP_CLIENT=/sbin/dhcpxd
  98                 elif [ -x /sbin/pump ]; then
  99                         DHCP_CLIENT=/sbin/pump
 100                 else
 101                         nls "Can't find a DHCP client."
 102                         exit 1
 103                 fi
 104         fi
 105 }
 106
 107 # Setup Network Address Translation (NAT)
 108 setup_nat()
 109 {
 110         typeset src via dst
 111
 112         if [ -r /etc/sysconfig/static-nat ]; then
 113                 if [ "$1" = "on" ]; then
 114                         grep "^[0-9]" /etc/sysconfig/static-nat | while read src via dst; do
 115                                 /sbin/ip route add nat $dst via $src
 116                                 /sbin/ip rule add from $src nat $dst
 117                         done
 118                 elif [ "$1" = "off" ]; then
 119                         LC_ALL=C /sbin/ip route show table all | egrep "^nat[[:blank:]]" | while read nat dst via src args; do
 120                                 /sbin/ip rule del from $src nat $dst
 121                                 /sbin/ip route del nat $dst via $src
 122                         done
 123                 fi
 124         fi
 125 }
 126
 127 # Setup static ARP
 128 static_arp()
 129 {
 130         typeset rc arpdev host hwaddr flags neflags
 131
 132         if is_yes "$STATIC_ARP" && [ -r /etc/ethers ]; then
 133                 if [ -x /sbin/arp ]; then
 134                         run_cmd "Setting static ARP entries" /sbin/arp -f /etc/ethers
 135                 else
 136                         show "Setting static ARP entries"; busy
 137                         rc=0
 138                         arpdev=$(ip link show | awk -F':' '(/UP/) && ! (/NOARP/) && ! (/lo:/) && ! (/NONE:/) { print $2; exit }')
 139                         if [ -z "$arpdev" ]; then
 140                                 rc=1
 141                         else
 142                                 # ip supports only ip addresses
 143                                 grep "^[0-9]" /etc/ethers | \
 144                                 while read host hwaddr flags; do
 145                                         case "$flags" in
 146                                           *temp*)
 147                                                 neflags="nud stale"
 148                                                 ;;
 149                                           *)
 150                                                 neflags="nud permanent"
 151                                                 ;;
 152                                         esac
 153                                         if ! /sbin/ip neigh add $host lladdr $hwaddr $neflags dev $arpdev; then
 154                                                 rc=1
 155                                         fi
 156                                 done
 157                         fi
 158                         if [ "$rc" -gt 0 ]; then
 159                                 fail
 160                         fi
 161                 fi
 162         fi
 163 }
 164
 165 static_rarp()
 166 {
 167         if is_yes "$STATIC_RARP"; then
 168                 if [ ! -e /proc/net/rarp ]; then
 169                         _modprobe single -k rarp
 170                 fi
 171                 if [ -r /etc/ethers -a -x /sbin/rarp ]; then
 172                         run_cmd "Setting static RARP entries" /sbin/rarp -f /etc/ethers
 173                 fi
 174         fi
 175 }
 176
 177 # Set up all IP && IP parameter variables
 178 setup_ip_param ()
 179 {
 180         # detect network device type (ie. dummy, eth for dummy0, eth0 ..)
 181         if [ -z "$DEVICETYPE" ]; then
 182                 DEVICETYPE=$(echo $DEVICE | awk ' { gsub(/[\.:]?[0-9]*[\.:]?[0-9]*$/,NUL); print $0 } ')
 183         fi
 184
 185         # Setup DEVICETYPE for special cases.
 186         if echo ${DEVICE} | LC_ALL=C egrep -q '^[a-z0-9]+\.[0-9]+$'; then
 187                 DEVICETYPE=vlan
 188         fi
 189
 190         # real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias)
 191         SUBDEVICE=$(echo "$DEVICE" | egrep "([0-9]+:[0-9]+)")
 192         DEVICE=$(echo $DEVICE | awk ' { gsub(/:.*$/,NUL); print $0 } ')
 193
 194         eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}"
 195         # check if ipaddr doesn't contain network length -- use $NETMASK then
 196         if [[ "$IP4ADDR" != */* ]] && [ "$NETMASK" ]; then
 197                 IP4ADDR=$IP4ADDR/$(calcprefix $NETMASK)
 198         fi
 199
 200         # check if we have ipv6 or ipv4 address
 201         if [[ "${IP4ADDR}" = *:* ]]; then
 202                 IP6ADDR=${IP4ADDR}
 203                 IP4ADDR=""
 204         else
 205                 eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
 206                 eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
 207         fi
 208         if [ "${IP6_PRIM_IF}" ] ; then
 209                 eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
 210                 eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
 211         fi
 212         if [ "${IP4_SRC_IF}" ] ; then
 213                 eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
 214                 IP4SRCADDR=$(echo ${IP4SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
 215         fi
 216         if [ "${IP6_SRC_IF}" ] ; then
 217                 eval IP6SRCADDR="\$IPADDR${IP6_SRC_IF}"
 218                 IP6SRCADDR=$(echo ${IP6SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
 219         fi
 220
 221         # new rc-scripts 0.4.x option
 222         if [ -z "$HANDLING" ]; then
 223                 HANDLING=0
 224         fi
 225
 226         # set handling for bridge
 227         case "$DEVICETYPE" in
 228           br|atm|lec|irda|vlan)
 229                 HANDLING=1
 230                 ;;
 231         esac
 232
 233         # Multicast ready devices
 234         if is_yes "$MULTICAST"; then
 235                 MULTICAST="on"
 236         else
 237                 case "$DEVICETYPE" in
 238                   eth|br)
 239                         MULTICAST="on"
 240                         ;;
 241                   *)
 242                         MULTICAST="off"
 243                         ;;
 244                 esac
 245         fi
 246
 247         # ARP ready devices
 248         if [ "$ARP" ] ; then
 249                 if is_yes "$ARP"; then
 250                         ARP="arp on"
 251                 else
 252                         ARP="arp off"
 253                 fi
 254         fi
 255 }
 256
 257 check_device_down ()
 258 {
 259         if LC_ALL=C ip link show dev ${DEVICE} 2> /dev/null | grep -q UP; then
 260                 return 1
 261         else
 262                 return 0
 263         fi
 264 }
 265
 266 setup_ip_gw_ro ()
 267 {
 268         # IPv4 gateway
 269         if is_yes "$IPV4_NETWORKING"; then
 270                 if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
 271                         # set up default gateway
 272                         if [ "${GATEWAY}" ]; then
 273                                 ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null
 274                                 if [ $? = 0 ]; then
 275                                         DEFGW=${GATEWAY}
 276                                 else
 277                                         # The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again.
 278                                         # To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network.
 279                                         nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?"
 280                                 fi
 281                         elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
 282                                 ip -4 route add default dev ${DEVICE} ${IP4SRCADDR}
 283                         fi
 284                 fi
 285         fi
 286
 287         # IPv6 gateway && IPv6 globalroute
 288         if is_yes "$IPV6_NETWORKING"; then
 289                 if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then
 290                         # set up default gateway
 291                         if [ "${GATEWAY6}" ]; then
 292                                 ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink
 293                                 DEFGW6=${GATEWAY6}
 294                         elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then
 295                                 ip -6 route add default dev ${DEVICE} ${IP6SRCADDR}
 296                         fi
 297                 fi
 298                 if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
 299                         # set up default route
 300                         if [ "${IPV6_GLOBALROUTEGW}" ]; then
 301                                 ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink
 302                         elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
 303                                 ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR}
 304                         fi
 305                 fi
 306         fi
 307 }
 308
 309 #
 310 # following function sets up routes not associated to any device
 311 # eg. unreachable or blackhole routes
 312 # (c) 1999 Jacek Konieczny <jajcus@pld-linux.org>
 313 #
 314 setup_routes()
 315 {
 316         typeset args
 317
 318         if [ -f /etc/sysconfig/static-routes ]; then
 319                 if [ "$1" = "on" -o "$1" = "yes" ] ; then
 320                         egrep "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
 321                                 /sbin/ip route add $args
 322                         done
 323                 else
 324                         egrep "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
 325                                 /sbin/ip route del $args 2>/dev/null
 326                         done
 327                 fi
 328         fi
 329 }
 330
 331 # Add ONLY IPv4 address (IPv6 address is added automaticly)
 332 set_up_loopback()
 333 {
 334         if is_yes "$IPV4_NETWORKING"; then
 335                 ip addr add 127.0.0.1/8 dev lo
 336         fi
 337         ip link set dev lo up
 338 }
 339
 340 set_down_loopback()
 341 {
 342         LC_ALL=C ip addr flush dev lo 2>&1 | grep -v "Nothing to flush"
 343         ip link set dev lo down
 344 }
 345
 346 modprobe_net()
 347 {
 348         if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then
 349                 _modprobe single -k ipv6
 350         fi
 351
 352         if is_yes "$IPX" && is_module "ipx"; then
 353                 _modprobe single -k ipx
 354         fi
 355 }
 356
 357 # calculate network prefix from given network mask
 358 calcprefix()
 359 {
 360         typeset old_IFS netmask prefix endp
 361
 362         old_IFS=$IFS
 363         IFS='.'
 364         netmask=$(echo $1)
 365         IFS=$old_IFS
 366
 367         prefix=0
 368         endp=0
 369         for n in $netmask ; do
 370                 for i in 128 64 32 16 8 4 2 1 ; do
 371                         if [ $(($n & $i)) -ne 0 ]; then
 372                                 if [ $endp -eq 0 ]; then
 373                                         prefix=$(($prefix + 1))
 374                                 else
 375                                         echo "32"
 376                                         return
 377                                 fi
 378                         else
 379                                 endp=1
 380                         fi
 381                 done
 382         done
 383         echo $prefix
 384 }
 385
 386 # calculate network mask from given prefix
 387 # (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
 388 calcnetmask()
 389 {
 390         typeset prefix a MASK
 391
 392         MASK=""
 393         if [ "${1##[0-9]*}" ]; then
 394                 prefix=32
 395         else
 396                 typeset -i prefix=$1
 397         fi
 398         for i in 1 2 3 4; do
 399                 case $prefix in
 400                   7)    a=254 ;;
 401                   6)    a=252 ;;
 402                   5)    a=248 ;;
 403                   4)    a=240 ;;
 404                   3)    a=224 ;;
 405                   2)    a=192 ;;
 406                   1)    a=128 ;;
 407                   *)
 408                         [ $prefix -ge 8 ] && a=255
 409                         [ $prefix -le 0 ] && a=0
 410                         ;;
 411                 esac
 412
 413                 prefix="$(( $prefix - 8))"
 414                 if [ -z "$MASK" ]; then
 415                         MASK=$a
 416                 else
 417                         MASK=$MASK.$a
 418                 fi
 419         done
 420
 421         echo $MASK
 422         return
 423 }
 424
 425 # Retrievies PPPD PID and real interface name from /var/run/ppp-*.pid
 426 get_ppp_device_and_pid ()
 427 {
 428         if [ -f "/var/run/ppp-$DEVNAME.pid" ] ; then
 429                 eval $(
 430                 {
 431                         read PID ; echo "PID='$PID'"
 432                         read REALDEVICE ; echo "REALDEVICE=$REALDEVICE"
 433                 } < "/var/run/ppp-$DEVNAME.pid")
 434         fi
 435
 436         if [ -z "$REALDEVICE" ] ; then
 437                 REALDEVICE=$DEVICE
 438         fi
 439 }
 440
 441 # following function setups advanced routing rules
 442 # Olgierd Pieczul <wojrus@pld-linux.org>
 443 setup_ip_rules ()
 444 {
 445         typeset args prio from src
 446
 447         if [ -f /etc/sysconfig/static-routes ] ; then
 448                 if is_yes "$1"; then
 449                         egrep "^(from|to|iif|tos|fwmark|dev|pref|priority|prio)[[:blank:]]" /etc/sysconfig/static-routes | while read args; do
 450                                 /sbin/ip rule add $args
 451                         done
 452                 elif is_no "$1"; then
 453                         LC_ALL=C /sbin/ip rule show | egrep -v -e "from all lookup (main|default|local) \$" -e " map-to " | while read prio from src args; do
 454                                 [ "$src" == "all" ] && ip rule delete $args || ip rule delete $from $src $args
 455                         done
 456                 fi
 457         fi
 458 }
 459
 460 is_wireless_device ()
 461 {
 462         if [ -x /sbin/iwconfig ]; then
 463                 LC_ALL=C iwconfig "${1}" 2>&1 | grep -q "no wireless extensions" || return 0
 464         fi
 465         return 1
 466 }
 467
 468 wireless_param()
 469 {
 470         device="$1"
 471         if [ "$2" = "br" ]; then
 472                 prefix="${device}_"
 473         else
 474                 prefix=""
 475         fi
 476
 477         local val wlan_mode
 478
 479         if val="$(eval echo \$${prefix}WLAN_NICKNAME)" && [ -z "$val" ]; then
 480                  WLAN_NICKNAME="$(hostname -f 2>/dev/null || hostname 2>/dev/null || echo localhost)"
 481         else
 482                  WLAN_NICKNAME="$val"
 483         fi
 484
 485         # wlan mode needs to be first
 486         wlan_mode="$(eval echo \$${prefix}WLAN_MODE)" && [ "$wlan_mode" ] && \
 487                 iwconfig ${device} mode "$wlan_mode"
 488
 489         iwconfig ${device} nick ${WLAN_NICKNAME}
 490
 491         val="$(eval echo \$${prefix}WLAN_NWID)" && [ "$val" ] && \
 492                 iwconfig ${device} nwid "$val"
 493
 494         if [ "$wlan_mode" != "Managed" -a "$wlan_mode" != "managed" ]; then
 495                 if val="$(eval echo \$${prefix}WLAN_FREQ)" && [ "$val" ]; then
 496                         iwconfig ${device} freq "$val"
 497                 elif val="$(eval echo \$${prefix}WLAN_CHANNEL)" && [ "$val" ]; then
 498                         iwconfig ${device} channel "$val"
 499                 fi
 500         fi
 501
 502         val="$(eval echo \$${prefix}WLAN_SENS)" && [ "$val" ] && \
 503                 iwconfig ${device} sens "$val"
 504         val="$(eval echo \$${prefix}WLAN_AP)" && [ "$val" ] && \
 505                 iwconfig ${device} ap "$val"
 506         val="$(eval echo \$${prefix}WLAN_BITRATE)" && [ "$val" ] && \
 507                 iwconfig ${device} rate "$val"
 508         val="$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" && [ "$val" ] && \
 509                 iwconfig ${device} rts "$val"
 510         val="$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" && [ "$val" ] && \
 511                 iwconfig ${device} frag "$val"
 512
 513         local wlan_encryption="$(eval echo \$${prefix}WLAN_ENCRYPTION)"
 514         local wlan_key="$(eval echo \$${prefix}WLAN_KEY)"
 515         # TODO: well, actually shouldn't set WLAN_KEY if other keys than current are set
 516         if [ "$wlan_key" ]; then
 517                 # wlan key can contain index of key to set
 518                 # to set other than current keys suffix with 1-4:
 519                 local idx
 520                 for idx in 1 2 3 4; do
 521                         val="$(eval echo \$${prefix}WLAN_KEY_$idx)"
 522                         [ "$val" ] || continue
 523                         iwconfig ${device} key "[$idx]" "$val"
 524                 done
 525                 if val="$(eval echo \$${prefix}WLAN_KEY_CURRENT)" && [ "$val" ]; then
 526                         iwconfig ${device} key "[$val]"
 527                 else
 528                         iwconfig ${device} key "$wlan_key"
 529                 fi
 530
 531                 [ "$wlan_encryption" ] && iwconfig ${device} key "$wlan_encryption"
 532         fi
 533
 534         if is_no "$wlan_encryption"; then
 535                 iwconfig ${device} key off
 536         fi
 537         val="$(eval echo \$${prefix}WLAN_POWER)" && [ "$val" ] && \
 538                 iwconfig ${device} power "$val"
 539         val="$(eval echo \$${prefix}WLAN_TXPOWER)" && [ "$val" ] && \
 540                 iwconfig ${device} txpower "$val"
 541         val="$(eval echo \$${prefix}WLAN_RETRY)" && [ "$val" ] && \
 542                 iwconfig ${device} retry "$val"
 543         val="$(eval echo \$${prefix}WLAN_NWID)" && [ "$val" ] && \
 544                 iwconfig ${device} nwid "$val"
 545
 546         # essid should be last due to network rescanning by wlan devices
 547         val="$(eval echo \$${prefix}WLAN_ESSID)" && [ "$val" ] && \
 548                 iwconfig ${device} essid "$val"
 549
 550         if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then
 551                 iwconfig ${device} commit
 552         fi
 553 }
 554
 555 # returns
 556 # 0 - no link
 557 # 1 - link ok
 558 # 2 - unsupported, unknown return
 559 check_mii_tool ()
 560 {
 561         [ -x /sbin/mii-tool ] || return 2
 562         output=$(LC_ALL=C mii-tool $1 2>&1)
 563         echo $output | grep -q "link ok" && return 1
 564         echo $output | grep -q "no link" && return 0
 565         return 2
 566 }
 567
 568 # returns
 569 # 0 - link off
 570 # 1 - link on
 571 # 2 - unsupported, unknown return
 572 check_ethtool ()
 573 {
 574         [ -x /sbin/ethtool ] || return 2
 575         output=$(LC_ALL=C ethtool $1 2>&1)
 576         echo $output | grep -q "Link detected: yes" && return 1
 577         echo $output | grep -q "Link detected: no" && return 0
 578         return 2
 579 }
 580
 581 # returns
 582 # 0 - radio off
 583 # 1 - radio on
 584 # 2 - unsupported
 585 check_iwconfig ()
 586 {
 587         [ -x /sbin/iwconfig ] || return 2
 588         output=$(LC_ALL=C iwconfig "$1" 2>&1)
 589         echo "$output" | grep -q "radio off" && return 0
 590         # XXX why no 'radio on' check?
 591         return 2
 592 }
 593
 594 # returns
 595 # 0 - link down
 596 # 1 - link up
 597 check_link_down ()
 598 {
 599         if [ -x /sbin/mii-tool -o -x /sbin/ethtool -o -x /sbin/iwconfig ]; then
 600                 if ! LC_ALL=C ip link show dev $1 2>/dev/null| grep -q UP ; then
 601                         ip link set dev $1 up >/dev/null 2>&1
 602                         timeout=0
 603                         while [ $timeout -le 10 ]; do
 604                                 check_mii_tool $1
 605                                 m=$?
 606                                 check_ethtool $1
 607                                 e=$?
 608                                 check_iwconfig $1
 609                                 i=$?
 610                                 if [ $m -eq 1 ] || [ $e -eq 1 ] ; then
 611                                         return 1
 612                                 fi
 613                                 if [ $m -eq 2 ] && [ $e -eq 2 ] && [ $i -eq 2 ]; then
 614                                         return 1
 615                                 fi
 616                                 usleep 500000
 617                                 timeout=$((timeout+1))
 618                         done
 619                         return 0
 620                 fi
 621         fi
 622         return 1
 623 }