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