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         if echo "${IP4ADDR}" | grep -q ":" ; then
 200                 IP6ADDR=${IP4ADDR}
 201                 IP4ADDR=""
 202         else
 203                 eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
 204                 eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
 205         fi
 206         if [ -n "${IP6_PRIM_IF}" ] ; then
 207                 eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
 208                 eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
 209         fi
 210         if [ -n "${IP4_SRC_IF}" ] ; then
 211                 eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
 212                 IP4SRCADDR=$(echo ${IP4SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
 213         fi
 214         if [ -n "${IP6_SRC_IF}" ] ; then
 215                 eval IP6SRCADDR="\$IPADDR${IP6_SRC_IF}"
 216                 IP6SRCADDR=$(echo ${IP6SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
 217         fi
 218
 219         # new rc-scripts 0.4.x option
 220         if [ -z "$HANDLING" ]; then
 221                 HANDLING=0
 222         fi
 223
 224         # set handling for bridge
 225         case "$DEVICETYPE" in
 226           br|atm|lec|irda|vlan)
 227                 HANDLING=1
 228                 ;;
 229         esac
 230
 231         # Multicast ready devices
 232         if is_yes "$MULTICAST"; then
 233                 MULTICAST="on"
 234         else
 235                 case "$DEVICETYPE" in
 236                   eth|br)
 237                         MULTICAST="on"
 238                         ;;
 239                   *)
 240                         MULTICAST="off"
 241                         ;;
 242                 esac
 243         fi
 244
 245         # ARP ready devices
 246         if [ -n "$ARP" ] ; then
 247                 if is_yes "$ARP"; then
 248                         ARP="arp on"
 249                 else
 250                         ARP="arp off"
 251                 fi
 252         fi
 253 }
 254
 255 check_device_down ()
 256 {
 257         if (ip link show dev ${DEVICE} 2> /dev/null | grep -q UP); then
 258                 return 1
 259         else
 260                 return 0
 261         fi
 262 }
 263
 264 setup_ip_gw_ro ()
 265 {
 266         # IPv4 gateway
 267         if is_yes "$IPV4_NETWORKING"; then
 268                 if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
 269                         # set up default gateway
 270                         if [ -n "${GATEWAY}" ]; then
 271                                 ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null
 272                                 if [ $? = 0 ]; then
 273                                         DEFGW=${GATEWAY}
 274                                 else
 275                                         # The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again.
 276                                         # To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network.
 277                                         nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?"
 278                                 fi
 279                         elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
 280                                 ip -4 route add default dev ${DEVICE} ${IP4SRCADDR}
 281                         fi
 282                 fi
 283         fi
 284
 285         # IPv6 gateway && IPv6 globalroute
 286         if is_yes "$IPV6_NETWORKING"; then
 287                 if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then
 288                         # set up default gateway
 289                         if [ -n "${GATEWAY6}" ]; then
 290                                 ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink
 291                                 DEFGW6=${GATEWAY6}
 292                         elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then
 293                                 ip -6 route add default dev ${DEVICE} ${IP6SRCADDR}
 294                         fi
 295                 fi
 296                 if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
 297                         # set up default route
 298                         if [ -n "${IPV6_GLOBALROUTEGW}" ]; then
 299                                 ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink
 300                         elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
 301                                 ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR}
 302                         fi
 303                 fi
 304         fi
 305 }
 306
 307 #
 308 # following function sets up routes not associated to any device
 309 # eg. unreachable or blackhole routes
 310 # (c) 1999 Jacek Konieczny <jajcus@pld-linux.org>
 311 #
 312 setup_routes()
 313 {
 314         typeset args
 315
 316         if [ -f /etc/sysconfig/static-routes ]; then
 317                 if [ "$1" = "on" -o "$1" = "yes" ] ; then
 318                         egrep "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
 319                                 /sbin/ip route add $args
 320                         done
 321                 else
 322                         egrep "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
 323                                 /sbin/ip route del $args 2>/dev/null
 324                         done
 325                 fi
 326         fi
 327 }
 328
 329 # Add ONLY IPv4 address (IPv6 address is added automaticly)
 330 set_up_loopback()
 331 {
 332         if is_yes "$IPV4_NETWORKING"; then
 333                 ip addr add 127.0.0.1/8 dev lo
 334         fi
 335         ip link set dev lo up
 336 }
 337
 338 set_down_loopback()
 339 {
 340         ip addr flush dev lo 2>&1 | grep -v "Nothing to flush"
 341         ip link set dev lo down
 342 }
 343
 344 modprobe_net()
 345 {
 346         if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then
 347                 _modprobe single -k ipv6
 348         fi
 349
 350         if is_yes "$IPX" && is_module "ipx"; then
 351                 _modprobe single -k ipx
 352         fi
 353 }
 354
 355 #
 356 # folowing function calculates network prefix from given network mask
 357 # (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
 358 #
 359 calcprefix()
 360 {
 361         typeset len olen bad prefix
 362
 363         prefix=0
 364         olen=8
 365         bad=0
 366         for i in 1 2 3 4; do
 367                 len=0
 368                 j=$(echo "$1" | awk -F"." "{ print \$${i} }")
 369                 case "$j" in
 370                   255)  len=8 ;;
 371                   254)  len=7 ;;
 372                   252)  len=6 ;;
 373                   248)  len=5 ;;
 374                   240)  len=4 ;;
 375                   224)  len=3 ;;
 376                   192)  len=2 ;;
 377                   128)  len=1 ;;
 378                   0)    len=0 ;;
 379                   *)    len=300 ;;
 380                 esac
 381                 [ "$len" -gt "$olen" ] && bad=1
 382                 prefix=$(($prefix + $len))
 383                 olen=$len
 384         done
 385
 386         if [ "$bad" = "0" ]; then
 387                 echo "$prefix"
 388         else
 389                 echo "32"
 390         fi
 391         return
 392 }
 393
 394 #
 395 # folowing function calculates network mask from given prefix
 396 # (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
 397 #
 398 calcnetmask()
 399 {
 400         typeset prefix a MASK
 401
 402         MASK=""
 403         if [ "`echo "${1}" | grep "^[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                         read PID ; echo "PID='$PID'"
 441                         read REALDEVICE ; echo "REALDEVICE=$REALDEVICE"
 442                 } < "/var/run/ppp-$DEVNAME.pid"`
 443         fi
 444
 445         if [ -z "$REALDEVICE" ] ; then
 446                 REALDEVICE=$DEVICE
 447         fi
 448 }
 449
 450 # following function setups advanced routing rules
 451 # Olgierd Pieczul <wojrus@pld-linux.org>
 452 setup_ip_rules ()
 453 {
 454         typeset args prio from src
 455
 456         if [ -f /etc/sysconfig/static-routes ] ; then
 457                 if is_yes "$1"; then
 458                         egrep "^(from|to|iif|tos|fwmark|dev|pref|priority|prio)[[:blank:]]" /etc/sysconfig/static-routes | while read args; do
 459                                 /sbin/ip rule add $args
 460                         done
 461                 elif is_no "$1"; then
 462                         /sbin/ip rule show | egrep -v -e "from all lookup (main|default|local) \$" -e " map-to " | while read prio from src args; do
 463                                 [ "$src" == "all" ] && ip rule delete $args || ip rule delete $from $src $args
 464                         done
 465                 fi
 466         fi
 467 }
 468
 469 is_wireless_device ()
 470 {
 471         if [ -x /sbin/iwconfig ]; then
 472                 LC_ALL=C iwconfig "${1}" 2>&1 | grep -q "no wireless extensions" || return 0
 473         fi
 474         return 1
 475 }
 476
 477 wireless_param ()
 478 {
 479         device="$1"
 480         if [ "$2" = "br" ]; then
 481                 prefix="${device}_"
 482         else
 483                 prefix=""
 484         fi
 485
 486         if [ -z "$(eval echo \$${prefix}WLAN_NICKNAME)" ]; then
 487                  WLAN_NICKNAME="$(hostname -f 2>/dev/null || hostname 2>/dev/null || echo localhost)"
 488         else
 489                  WLAN_NICKNAME="$(eval echo \$${prefix}WLAN_NICKNAME)"
 490         fi
 491
 492         # wlan mode needs to be first
 493         [ -n "$(eval echo \$${prefix}WLAN_MODE)" ] && \
 494                 iwconfig ${device} mode "$(eval echo \$${prefix}WLAN_MODE)"
 495         iwconfig ${device} nick ${WLAN_NICKNAME}
 496         [ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && \
 497                 iwconfig ${device} nwid "$(eval echo \$${prefix}WLAN_NWID)"
 498         if [ -n "$(eval echo \$${prefix}WLAN_FREQ)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ] ; then
 499                 iwconfig ${device} freq "$(eval echo \$${prefix}WLAN_FREQ)"
 500         elif [ -n "$(eval echo \$${prefix}WLAN_CHANNEL)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ]; then
 501                 iwconfig ${device} channel "$(eval echo \$${prefix}WLAN_CHANNEL)"
 502         fi
 503         [ -n "$(eval echo \$${prefix}WLAN_SENS)" ] && \
 504                 iwconfig ${device} sens "$(eval echo \$${prefix}WLAN_SENS)"
 505         [ -n "$(eval echo \$${prefix}WLAN_AP)" ] && \
 506                 iwconfig ${device} ap "$(eval echo \$${prefix}WLAN_AP)"
 507         [ -n "$(eval echo \$${prefix}WLAN_BITRATE)" ] && \
 508                 iwconfig ${device} rate "$(eval echo \$${prefix}WLAN_BITRATE)"
 509         [ -n "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" ] && \
 510                 iwconfig ${device} rts "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)"
 511         [ -n "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" ] && \
 512                 iwconfig ${device} frag "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)"
 513         if [ -n "$(eval echo \$${prefix}WLAN_KEY)" ]; then
 514                 iwconfig ${device} key "$(eval echo \$${prefix}WLAN_KEY)"
 515                 [ -n "$(eval echo \$${prefix}WLAN_ENCRYPTION)" ] && \
 516                         iwconfig ${device} key "$(eval echo \$${prefix}WLAN_ENCRYPTION)"
 517         fi
 518         if is_no "$(eval echo \$${prefix}WLAN_ENCRYPTION)"; then
 519                 iwconfig ${device} key off
 520         fi
 521         [ -n "$(eval echo \$${prefix}WLAN_POWER)" ] && \
 522                 iwconfig ${device} power "$(eval echo \$${prefix}WLAN_POWER)"
 523         [ -n "$(eval echo \$${prefix}WLAN_TXPOWER)" ] && \
 524                 iwconfig ${device} txpower "$(eval echo \$${prefix}WLAN_TXPOWER)"
 525         [ -n "$(eval echo \$${prefix}WLAN_RETRY)" ] && \
 526                 iwconfig ${device} retry "$(eval echo \$${prefix}WLAN_RETRY)"
 527         [ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && iwconfig ${device} \
 528                 nwid "$(eval echo \$${prefix}WLAN_NWID)"
 529
 530         # essid should be last due to network rescanning by wlan devices
 531         [ -n "$(eval echo \$${prefix}WLAN_ESSID)" ] && iwconfig ${device} \
 532                 essid "$(eval echo \$${prefix}WLAN_ESSID)"
 533
 534         if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then
 535                 iwconfig ${device} commit
 536         fi
 537 }
 538
 539 check_mii_tool ()
 540 {
 541         [ -x /sbin/mii-tool ] || return 2
 542         output=$(LC_ALL=C mii-tool $1 2>&1)
 543         echo $output | LC_ALL=C grep -q "link ok" && return 1
 544         echo $output | LC_ALL=C grep -q "no link" && return 0 || return 2
 545 }
 546
 547 check_ethtool ()
 548 {
 549         [ -x /sbin/ethtool ] || return 2
 550         output=$(LC_ALL=C ethtool $1 2>&1)
 551         echo $output | LC_ALL=C grep -q "Link detected: yes" && return 1
 552         echo $output | LC_ALL=C grep -q "Link detected: no" && return 0 || return 2
 553 }
 554
 555 check_iwconfig ()
 556 {
 557         [ -x /sbin/iwconfig ] || return 2
 558         output=$(LC_ALL=C iwconfig $1 2>&1)
 559         echo $output | LC_ALL=C grep -q "radio off" && return 0 || return 2
 560 }
 561
 562 check_link_down ()
 563 {
 564         if [ -x /sbin/mii-tool -o -x /sbin/ethtool -o -x /sbin/iwconfig ]; then
 565                 if ! LC_ALL=C ip link show dev $1 2>/dev/null| grep -q UP ; then
 566                         ip link set dev $1 up >/dev/null 2>&1
 567                         timeout=0
 568                         while [ $timeout -le 10 ]; do
 569                                 check_mii_tool $1
 570                                 m=$?
 571                                 check_ethtool $1
 572                                 e=$?
 573                                 check_iwconfig $1
 574                                 i=$?
 575                                 if [ $m -eq 1 ] || [ $e -eq 1 ] ; then
 576                                         return 1
 577                                 fi
 578                                 if [ $m -eq 2 ] && [ $e -eq 2 ] && [ $i -eq 2 ]; then
 579                                         return 1
 580                                 fi
 581                                 usleep 500000
 582                                 timeout=$((timeout+1))
 583                         done
 584                         return 0
 585                 fi
 586         fi
 587         return 1
 588 }
 589
 590 # This must be last line !
 591 # vi:syntax=sh