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#! /bin/bash
. /usr/lib/network/network
wireless_up() {
load_profile "$1"
. "$SUBR_DIR/8021x"
. "$SUBR_DIR/wireless"
if [[ -n "$RFKILL" ]]; then
local state=$(get_rf_state "$INTERFACE") || return 1
if [[ "$state" != "up" ]]; then
if [[ "$RFKILL" == "soft" ]]; then
set_rf_state "$INTERFACE" up
sleep 1
else
report_fail "radio is disabled on $INTERFACE"
return 1
fi
fi
fi
# Check if interface exists
if [[ ! -e "/sys/class/net/$INTERFACE" ]]; then
if ! echo "$INTERFACE" | fgrep -q ":"; then
report_fail "interface $INTERFACE does not exist"
return 1
fi
fi
# Kill any lingering wpa_supplicants.
report_debug wireless_up stop_wpa "$INTERFACE"
stop_wpa "$INTERFACE"
# Most drivers (mac80211) need mode set before device is brought up
# Drivers generally default to managed, but set this to be sure.
if [[ $(iwgetid -sm "$INTERFACE") -ne Managed ]]; then
report_debug wireless_up iwconfig "$INTERFACE" mode managed
iwconfig "$INTERFACE" mode managed
fi
report_debug wireless_up ifup
set_interface up-old "$INTERFACE" || return 1
quirk prescan && iwlist "$INTERFACE" scan &> /dev/null # bcm43xx
if quirk preessid; then # ipw3945
if [[ -n "$AP" ]]; then # JP: enable use of AP
# JP: Since I don't undertand why the else block below is an eval, I'm not sure
# if this command also needs to be eval'd
iwconfig "$INTERFACE" mode managed ap "$AP"
else
# JP: I don't understand why this needs to be an eval. What's wrong with just:
# iwconfig "$INTERFACE" mode managed essid "$ESSID"
eval "iwconfig \"$INTERFACE\" mode managed essid \"$ESSID\""
fi
fi
if checkyesno "${SCAN:-no}"; then
report_debug wireless_up scanning
local OLDESSID="$ESSID"
if [[ -n "$AP" ]]; then
ESSID=$(find_ap "$INTERFACE" "$AP")
else
ESSID=$(find_essid "$INTERFACE" "$ESSID")
fi
if [[ $? -gt 0 ]]; then
report_fail "Wireless network \"$OLDESSID\" not present."
return 1
fi
fi
# Manually set iwconfig options
if [[ -n "$IWCONFIG" ]]; then
report_debug wireless_up iwconfig "$INTERFACE" $IWCONFIG
iwconfig "$INTERFACE" $IWCONFIG
fi
# Set to 'none' if not set
[[ -z "$SECURITY" ]] && SECURITY="none"
case "$SECURITY" in
wep|none)
# 'none' uses iwconfig like wep. Use sane default if WEP_OPTS=""
if [[ -z "$WEP_OPTS" ]]; then
if [[ "$SECURITY" = "wep" ]]; then
if [[ -n "$AP" ]]; then
WEP_OPTS="ap \"$AP\" key $KEY" # JP: formerly I had "...key open $KEY"; is it correct to omit the 'open'?
else
WEP_OPTS="essid \"$ESSID\" key $KEY" # JP: formerly I had "...key open $KEY"; is it correct to omit the 'open'?
fi
elif [[ "$SECURITY" = "none" ]]; then
if [[ -n "$AP" ]]; then
WEP_OPTS="ap \"$AP\""
else
WEP_OPTS="essid \"$ESSID\""
fi
fi
fi
if quirk "predown"; then # madwifi FS#10585
# ignore quirk nodown---is that appropriate?
# this adds a flush call as well---is that appropriate?
set_interface forcedown-old "$INTERFACE"
fi
report_debug wireless_up iwconfig "$INTERFACE" $WEP_OPTS
# JP: I don't understand why this needs to be an eval. What's wrong with just:
# iwconfig "$INTERFACE" $WEP_OPTS
if ! eval "iwconfig \"$INTERFACE\" $WEP_OPTS"; then
report_fail "Could not set wireless configuration."
return 1
fi
if quirk "predown"; then # madwifi FS#10585
set_interface up-old "$INTERFACE"
fi
report_debug ethernet_up wep_check
if ! wep_check "$INTERFACE" "$TIMEOUT"; then
report_fail "WEP Association Failed"
return 1
fi
;;
wpa)
# Quirk for broken drivers... http://bbs.archlinux.org/viewtopic.php?id=36384
if quirk "wpaessid"; then
if [[ -n "$AP" ]]; then
# JP: Since I don't undertand why the else block below is an eval, I'm not sure
# if this command also needs to be eval'd
iwconfig "$INTERFACE" ap "$AP"
else
# JP: I don't understand why this needs to be an eval. What's wrong with just:
# iwconfig "$INTERFACE" essid "$ESSID"
eval "iwconfig \"$INTERFACE\" essid \"$ESSID\""
fi
fi
local WPA_CONF="${TMPDIR:-/tmp}/wpa.${1// /}" # substitute spaces out
# make empty tmp dir with correct permissions, rename it
rm -rf "$WPA_CONF"
mv -f "$(mktemp -d)" "$WPA_CONF" || return 1
echo "ctrl_interface=/var/run/wpa_supplicant" >> "$WPA_CONF/wpa.conf" # we know $WPA_CONF now has no spaces, but it may have other nasty chars, so still needs to be quoted
echo "ctrl_interface_group=${WPA_GROUP:-wheel}" >> "$WPA_CONF/wpa.conf"
# Generate configuration
if [[ "${#KEY}" -eq 64 ]]; then
echo -e "network={ \nssid=\"$ESSID\" \npsk=$KEY \n}">> "$WPA_CONF/wpa.conf"
# JP: formerly I had { \nssid=\"$ESSID\" \nproto=WPA \nkey_mgmt=WPA-PSK \npsk=$KEY \n}
# JP: is what's above better?
elif ! echo "$KEY" | wpa_passphrase "$ESSID" >> "$WPA_CONF/wpa.conf"; then
report_fail "Configuration generation failed."
cat "$WPA_CONF/wpa.conf" >&2
return 1
fi
# Connect!
[[ -z "$WPA_OPTS" ]] && WPA_OPTS="-Dwext"
report_debug wireless_up start_wpa "$INTERFACE" "$WPA_CONF/wpa.conf" "$WPA_OPTS"
if ! start_wpa "$INTERFACE" "$WPA_CONF/wpa.conf" "$WPA_OPTS"; then
report_fail "wpa_supplicant did not start, possible configuration error"
return 1
fi
report_debug wireless_up wpa_check
if ! wpa_check "$INTERFACE" "$TIMEOUT"; then
report_fail "WPA Authentication/Association Failed"
return 1
fi
;;
wpa-config)
. "$SUBR_DIR/8021x"
[[ -z "$WPA_CONF" ]] && WPA_CONF="/etc/wpa_supplicant.conf" # defaults
[[ -z "$WPA_OPTS" ]] && WPA_OPTS="-Dwext"
report_debug wireless_up start_wpa "$INTERFACE" "$WPA_CONF" "$WPA_OPTS"
if ! start_wpa "$INTERFACE" "$WPA_CONF" "$WPA_OPTS"; then
report_fail "wpa_supplicant did not start, possible configuration error"
return 1
fi
report_debug wireless_up wpa_check
if ! wpa_check "$INTERFACE" "$TIMEOUT"; then
report_fail "WPA Authentication/Association Failed"
return 1
fi
;;
esac
conn=ethernet
checkyesno "${IPROUTE:-no}" && conn=ethernet-iproute
if ! "$CONN_DIR/$conn" up "$1"; then
wireless_down "$1" YES
return 1
fi
}
# wireless_down PROFILE [ LEAVE ifconfig up? default no ]
wireless_down() {
local PROFILE="$1" NOETHERNETDOWN="$2"
load_profile "$PROFILE"
. "$SUBR_DIR/8021x"
if ! checkyesno "$NOETHERNETDOWN"; then
conn=ethernet
checkyesno "${IPROUTE:-no}" && conn=ethernet-iproute
"$CONN_DIR/$conn" down "$PROFILE"
fi
report_debug wireless_down stop_wpa "$INTERFACE"
stop_wpa "$INTERFACE"
[[ "$SECURITY" == "wpa" ]] && rm -rf "${TMPDIR:-/tmp}/wpa.${PROFILE// /}" # remove tmp wpa config
report_debug wireless_down iwconfig "$INTERFACE" essid off key off
iwconfig "$INTERFACE" essid off key off &> /dev/null
# respects quirk nodown---is that appropriate?
# wasn't this already called in ethernet_down? but does the call there respect quirk nodown?
# this adds a flush call as well---is that appropriate?
set_interface down-old "$INTERFACE"
# Handle wireless kill switches
# Any reason why a hardware switch should be considered on interface down?
if [[ "$RFKILL" == "soft" ]]; then
. "$SUBR_DIR/wireless"
set_rf_state "$INTERFACE" down || return 1
fi
}
# Returns status of profile - is it still functional?
wireless_status() {
load_profile "$1"
if [[ "$(iwgetid -r)" -ne "$ESSID" ]]; then
return 1
elif ! ip link show dev "$INTERFACE" | fgrep -q "state UP"; then
return 1
fi
}
wireless_$1 "$2" "$3"
exit $?
# vim: ft=sh ts=4 et sw=4:
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