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#! /bin/bash |
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for var in IFACE essid key wlanmode ; do |
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if test -z "${!var}" ; then |
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1>&2 echo "wifi-up: missing arg '$var'" |
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exit 1 |
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fi |
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done |
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|
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echo ... start of wifi-up $IFACE |
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modprobe ath_pci ## may or may not be necessary |
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## ifconfig $IFACE down ## not necessary; dhclient3 will down the device |
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|
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#!!! The following line is a disaster: |
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#!!! wlanconfig $IFACE destroy || true |
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#!!! apparently it does something like "dhclient3 -r" |
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#!!! and does it asynchronously, creating a race. |
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#!!! The weirdest part is that I see a "RELEASE" message |
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#!!! in /var/log/daemon.log |
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#!!! but I don't see debug-printouts from dhclient-script. |
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#!!! In any case, the result is that the dhcp lease is released |
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#!!! within milliseconds of being acquired. |
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#!!! |
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#!!! The following is no better, although (sometimes?) harmless if the device has |
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#!!! already been destroyed. |
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#!!! if wlanconfig $IFACE destroy ; then |
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#!!! echo '(needed destroying)' |
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#!!! sleep 30 |
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#!!! else |
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#!!! echo '(fresh)' |
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#!!! fi |
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|
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if wlanconfig $IFACE list > /dev/null 2>/dev/null ; then |
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echo "(Didn't need creating)" |
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else |
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wlanconfig $IFACE create wlandev wifi0 wlanmode $wlanmode |
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fi |
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iwpriv $IFACE mode 2 ## 801.11b |
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iwconfig $IFACE essid $essid |
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iwconfig $IFACE key $key [1] |
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iwconfig $IFACE key [1] |
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echo ... end of wifi-up |
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