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 \
  55              "$hostname" = "localhost.localdomain" ]; then
  56                 NEEDHOSTNAME=yes
  57         else
  58                 unset NEEDHOSTNAME
  59         fi
  60 }
  61
  62 set_hostname()
  63 {
  64         typeset hostname domain
  65
  66         hostname=$(echo $1 | awk ' { gsub(/\..*$/,NIL); print $0; } ')
  67         domain=$(echo $1 | awk ' { sub(/^[^\.]*\./,NIL); print $0; } ')
  68
  69         if [ "$hostname" ]; then
  70                 echo "$hostname" > /etc/HOSTNAME
  71                 hostname $hostname
  72         fi
  73
  74         if [ "$domain" ]; then
  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                         /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 vlan_setup()
 178 {
 179         if [ -x /sbin/vconfig -a -e /proc/net/vlan/config ] && echo $DEVICE | grep -q ^eth; then
 180                 /sbin/vconfig set_name_type DEV_PLUS_VID_NO_PAD 2>&1 > /dev/null
 181                 ETH_VLANS="yes"
 182         else
 183                 ETH_VLANS="no"
 184         fi
 185 }
 186
 187 # Set up all IP && IP parameter variables
 188 setup_ip_param ()
 189 {
 190         # detect network device type (ie. dummy, eth for dummy0, eth0 ..)
 191         if [ -z "$DEVICETYPE" ]; then
 192                 DEVICETYPE=$(echo $DEVICE | awk ' { gsub(/[\.:]?[0-9]*[\.:]?[0-9]*$/,NUL); print $0 } ')
 193         fi
 194
 195         # Setup DEVICETYPE for special cases.
 196         if echo ${DEVICE} | LC_ALL=C egrep -q '^[a-z0-9]+\.[0-9]+$'; then
 197                 DEVICETYPE=vlan
 198         fi
 199
 200         # real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias)
 201         SUBDEVICE=$(echo "$DEVICE" | egrep "([0-9]+:[0-9]+)")
 202         DEVICE=$(echo $DEVICE | awk ' { gsub(/:.*$/,NUL); print $0 } ')
 203
 204         eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}"
 205         # check if ipaddr doesn't contain network length -- use $NETMASK then
 206         if [[ "$IP4ADDR" != */* ]] && [ "$NETMASK" ]; then
 207                 IP4ADDR=$IP4ADDR/$(calcprefix $NETMASK)
 208         fi
 209
 210         # check if we have ipv6 or ipv4 address
 211         if [[ "${IP4ADDR}" = *:* ]]; then
 212                 IP6ADDR=${IP4ADDR}
 213                 IP4ADDR=""
 214         else
 215                 eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
 216                 eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
 217         fi
 218         if [ "${IP6_PRIM_IF}" ] ; then
 219                 eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
 220                 eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
 221         fi
 222         if [ "${IP4_SRC_IF}" ] ; then
 223                 eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
 224                 IP4SRCADDR=$(echo ${IP4SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
 225         fi
 226         if [ "${IP6_SRC_IF}" ] ; then
 227                 eval IP6SRCADDR="\$IPADDR${IP6_SRC_IF}"
 228                 IP6SRCADDR=$(echo ${IP6SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
 229         fi
 230
 231         # new rc-scripts 0.4.x option
 232         if [ -z "$HANDLING" ]; then
 233                 HANDLING=0
 234         fi
 235
 236         # set handling for bridge
 237         case "$DEVICETYPE" in
 238           br|atm|lec|irda|vlan)
 239                 HANDLING=1
 240                 ;;
 241         esac
 242
 243         # Multicast ready devices
 244         if is_yes "$MULTICAST"; then
 245                 MULTICAST="on"
 246         else
 247                 case "$DEVICETYPE" in
 248                   eth|br)
 249                         MULTICAST="on"
 250                         ;;
 251                   *)
 252                         MULTICAST="off"
 253                         ;;
 254                 esac
 255         fi
 256
 257         # ARP ready devices
 258         if [ "$ARP" ] ; then
 259                 if is_yes "$ARP"; then
 260                         ARP="arp on"
 261                 else
 262                         ARP="arp off"
 263                 fi
 264         fi
 265 }
 266
 267 check_device_down ()
 268 {
 269         if LC_ALL=C ip link show dev ${DEVICE} 2> /dev/null | grep -q UP; then
 270                 return 1
 271         else
 272                 return 0
 273         fi
 274 }
 275
 276 setup_ip_gw_ro ()
 277 {
 278         # IPv4 gateway
 279         if is_yes "$IPV4_NETWORKING"; then
 280                 if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
 281                         # set up default gateway
 282                         if [ "${GATEWAY}" ]; then
 283                                 ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null
 284                                 if [ $? = 0 ]; then
 285                                         DEFGW=${GATEWAY}
 286                                 else
 287                                         # The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again.
 288                                         # To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network.
 289                                         nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?"
 290                                 fi
 291                         elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
 292                                 ip -4 route add default dev ${DEVICE} ${IP4SRCADDR}
 293                         fi
 294                 fi
 295         fi
 296
 297         # IPv6 gateway && IPv6 globalroute
 298         if is_yes "$IPV6_NETWORKING"; then
 299                 if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then
 300                         # set up default gateway
 301                         if [ "${GATEWAY6}" ]; then
 302                                 ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink
 303                                 DEFGW6=${GATEWAY6}
 304                         elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then
 305                                 ip -6 route add default dev ${DEVICE} ${IP6SRCADDR}
 306                         fi
 307                 fi
 308                 if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
 309                         # set up default route
 310                         if [ "${IPV6_GLOBALROUTEGW}" ]; then
 311                                 ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink
 312                         elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
 313                                 ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR}
 314                         fi
 315                 fi
 316         fi
 317 }
 318
 319 #
 320 # following function sets up routes not associated to any device
 321 # eg. unreachable or blackhole routes
 322 # (c) 1999 Jacek Konieczny <jajcus@pld-linux.org>
 323 #
 324 setup_routes()
 325 {
 326         typeset args
 327
 328         if [ -f /etc/sysconfig/static-routes ]; then
 329                 if [ "$1" = "on" -o "$1" = "yes" ] ; then
 330                         egrep "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
 331                                 /sbin/ip route add $args
 332                         done
 333                 else
 334                         egrep "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
 335                                 /sbin/ip route del $args 2>/dev/null
 336                         done
 337                 fi
 338         fi
 339 }
 340
 341 # Add ONLY IPv4 address (IPv6 address is added automaticly)
 342 set_up_loopback()
 343 {
 344         if is_yes "$IPV4_NETWORKING"; then
 345                 ip addr add 127.0.0.1/8 dev lo
 346         fi
 347         ip link set dev lo up
 348 }
 349
 350 set_down_loopback()
 351 {
 352         LC_ALL=C ip addr flush dev lo 2>&1 | grep -v "Nothing to flush"
 353         ip link set dev lo down
 354 }
 355
 356 modprobe_net()
 357 {
 358         if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then
 359                 _modprobe single -k ipv6
 360         fi
 361
 362         if is_yes "$IPX" && is_module "ipx"; then
 363                 _modprobe single -k ipx
 364         fi
 365 }
 366
 367 # calculate network prefix from given network mask
 368 calcprefix()
 369 {
 370         typeset old_IFS netmask prefix endp
 371
 372         old_IFS=$IFS
 373         IFS='.'
 374         netmask=$(echo $1)
 375         IFS=$old_IFS
 376
 377         prefix=0
 378         endp=0
 379         for n in $netmask ; do
 380                 for i in 128 64 32 16 8 4 2 1 ; do
 381                         if [ $(($n & $i)) -ne 0 ]; then
 382                                 if [ $endp -eq 0 ]; then
 383                                         prefix=$(($prefix + 1))
 384                                 else
 385                                         echo "32"
 386                                         return
 387                                 fi
 388                         else
 389                                 endp=1
 390                         fi
 391                 done
 392         done
 393         echo $prefix
 394 }
 395
 396 # calculate network mask from given prefix
 397 # (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
 398 calcnetmask()
 399 {
 400         typeset prefix a MASK
 401
 402         MASK=""
 403         if [ "${1##[0-9]*}" ]; then
 404                 prefix=32
 405         else
 406                 typeset -i prefix=$1
 407         fi
 408         for i in 1 2 3 4; do
 409                 case $prefix in
 410                   7)    a=254 ;;
 411                   6)    a=252 ;;
 412                   5)    a=248 ;;
 413                   4)    a=240 ;;
 414                   3)    a=224 ;;
 415                   2)    a=192 ;;
 416                   1)    a=128 ;;
 417                   *)
 418                         [ $prefix -ge 8 ] && a=255
 419                         [ $prefix -le 0 ] && a=0
 420                         ;;
 421                 esac
 422
 423                 prefix="$(( $prefix - 8))"
 424                 if [ -z "$MASK" ]; then
 425                         MASK=$a
 426                 else
 427                         MASK=$MASK.$a
 428                 fi
 429         done
 430
 431         echo $MASK
 432         return
 433 }
 434
 435 # Retrievies PPPD PID and real interface name from /var/run/ppp-*.pid
 436 get_ppp_device_and_pid ()
 437 {
 438         if [ -f "/var/run/ppp-$DEVNAME.pid" ] ; then
 439                 eval $(
 440                 {
 441                         read PID ; echo "PID='$PID'"
 442                         read REALDEVICE ; echo "REALDEVICE=$REALDEVICE"
 443                 } < "/var/run/ppp-$DEVNAME.pid")
 444         fi
 445
 446         if [ -z "$REALDEVICE" ] ; then
 447                 REALDEVICE=$DEVICE
 448         fi
 449 }
 450
 451 # following function setups advanced routing rules
 452 # Olgierd Pieczul <wojrus@pld-linux.org>
 453 setup_ip_rules ()
 454 {
 455         typeset args prio from src
 456
 457         if [ -f /etc/sysconfig/static-routes ] ; then
 458                 if is_yes "$1"; then
 459                         egrep "^(from|to|iif|tos|fwmark|dev|pref|priority|prio)[[:blank:]]" /etc/sysconfig/static-routes | while read args; do
 460                                 /sbin/ip rule add $args
 461                         done
 462                 elif is_no "$1"; then
 463                         /sbin/ip rule show | egrep -v -e "from all lookup (main|default|local) \$" -e " map-to " | while read prio from src args; do
 464                                 [ "$src" == "all" ] && ip rule delete $args || ip rule delete $from $src $args
 465                         done
 466                 fi
 467         fi
 468 }
 469
 470 is_wireless_device ()
 471 {
 472         if [ -x /sbin/iwconfig ]; then
 473                 LC_ALL=C iwconfig "${1}" 2>&1 | grep -q "no wireless extensions" || return 0
 474         fi
 475         return 1
 476 }
 477
 478 wireless_param()
 479 {
 480         device="$1"
 481         if [ "$2" = "br" ]; then
 482                 prefix="${device}_"
 483         else
 484                 prefix=""
 485         fi
 486
 487         local val wlan_mode
 488
 489         if val="$(eval echo \$${prefix}WLAN_NICKNAME)" && [ -z "$val" ]; then
 490                  WLAN_NICKNAME="$(hostname -f 2>/dev/null || hostname 2>/dev/null || echo localhost)"
 491         else
 492                  WLAN_NICKNAME="$val"
 493         fi
 494
 495         # wlan mode needs to be first
 496         wlan_mode="$(eval echo \$${prefix}WLAN_MODE)" && [ "$wlan_mode" ] && \
 497                 iwconfig ${device} mode "$wlan_mode"
 498
 499         iwconfig ${device} nick ${WLAN_NICKNAME}
 500
 501         val="$(eval echo \$${prefix}WLAN_NWID)" && [ "$val" ] && \
 502                 iwconfig ${device} nwid "$val"
 503
 504         if [ "$wlan_mode" != "Managed" -a "$wlan_mode" != "managed" ]; then
 505                 if val="$(eval echo \$${prefix}WLAN_FREQ)" && [ "$val" ]; then
 506                         iwconfig ${device} freq "$val"
 507                 elif val="$(eval echo \$${prefix}WLAN_CHANNEL)" && [ "$val" ]; then
 508                         iwconfig ${device} channel "$val"
 509                 fi
 510         fi
 511
 512         val="$(eval echo \$${prefix}WLAN_SENS)" && [ "$val" ] && \
 513                 iwconfig ${device} sens "$val"
 514         val="$(eval echo \$${prefix}WLAN_AP)" && [ "$val" ] && \
 515                 iwconfig ${device} ap "$val"
 516         val="$(eval echo \$${prefix}WLAN_BITRATE)" && [ "$val" ] && \
 517                 iwconfig ${device} rate "$val"
 518         val="$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" && [ "$val" ] && \
 519                 iwconfig ${device} rts "$val"
 520         val="$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" && [ "$val" ] && \
 521                 iwconfig ${device} frag "$val"
 522
 523         local wlan_encryption="$(eval echo \$${prefix}WLAN_ENCRYPTION)"
 524         local wlan_key="$(eval echo \$${prefix}WLAN_KEY)"
 525         # TODO: well, actually shouldn't set WLAN_KEY if other keys than current are set
 526         if [ "$wlan_key" ]; then
 527                 # wlan key can contain index of key to set
 528                 # to set other than current keys suffix with 1-4:
 529                 local idx
 530                 for idx in 1 2 3 4; do
 531                         val="$(eval echo \$${prefix}WLAN_KEY_$idx)"
 532                         [ "$val" ] || continue
 533                         iwconfig ${device} key "[$idx]" "$val"
 534                 done
 535                 if val="$(eval echo \$${prefix}WLAN_KEY_CURRENT)" && [ "$val" ]; then
 536                         iwconfig ${device} key "[$val]"
 537                 else
 538                         iwconfig ${device} key "$wlan_key"
 539                 fi
 540
 541                 [ "$wlan_encryption" ] && iwconfig ${device} key "$wlan_encryption"
 542         fi
 543
 544         if is_no "$wlan_encryption"; then
 545                 iwconfig ${device} key off
 546         fi
 547         val="$(eval echo \$${prefix}WLAN_POWER)" && [ "$val" ] && \
 548                 iwconfig ${device} power "$val"
 549         val="$(eval echo \$${prefix}WLAN_TXPOWER)" && [ "$val" ] && \
 550                 iwconfig ${device} txpower "$val"
 551         val="$(eval echo \$${prefix}WLAN_RETRY)" && [ "$val" ] && \
 552                 iwconfig ${device} retry "$val"
 553         val="$(eval echo \$${prefix}WLAN_NWID)" && [ "$val" ] && \
 554                 iwconfig ${device} nwid "$val"
 555
 556         # essid should be last due to network rescanning by wlan devices
 557         val="$(eval echo \$${prefix}WLAN_ESSID)" && [ "$val" ] && \
 558                 iwconfig ${device} essid "$val"
 559
 560         if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then
 561                 iwconfig ${device} commit
 562         fi
 563 }
 564
 565 check_mii_tool ()
 566 {
 567         [ -x /sbin/mii-tool ] || return 2
 568         output=$(LC_ALL=C mii-tool $1 2>&1)
 569         echo $output | grep -q "link ok" && return 1
 570         echo $output | grep -q "no link" && return 0 || return 2
 571 }
 572
 573 check_ethtool ()
 574 {
 575         [ -x /sbin/ethtool ] || return 2
 576         output=$(LC_ALL=C ethtool $1 2>&1)
 577         echo $output | grep -q "Link detected: yes" && return 1
 578         echo $output | grep -q "Link detected: no" && return 0 || return 2
 579 }
 580
 581 check_iwconfig ()
 582 {
 583         [ -x /sbin/iwconfig ] || return 2
 584         LC_ALL=C iwconfig "$1" 2>&1 | grep -q "radio off" && return 0 || return 2
 585 }
 586
 587 check_link_down ()
 588 {
 589         if [ -x /sbin/mii-tool -o -x /sbin/ethtool -o -x /sbin/iwconfig ]; then
 590                 if ! LC_ALL=C ip link show dev $1 2>/dev/null| grep -q UP ; then
 591                         ip link set dev $1 up >/dev/null 2>&1
 592                         timeout=0
 593                         while [ $timeout -le 10 ]; do
 594                                 check_mii_tool $1
 595                                 m=$?
 596                                 check_ethtool $1
 597                                 e=$?
 598                                 check_iwconfig $1
 599                                 i=$?
 600                                 if [ $m -eq 1 ] || [ $e -eq 1 ] ; then
 601                                         return 1
 602                                 fi
 603                                 if [ $m -eq 2 ] && [ $e -eq 2 ] && [ $i -eq 2 ]; then
 604                                         return 1
 605                                 fi
 606                                 usleep 500000
 607                                 timeout=$((timeout+1))
 608                         done
 609                         return 0
 610                 fi
 611         fi
 612         return 1
 613 }