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|
#! /bin/bash
##################################
##
# /usr/lib/network/connections/wireless
##
##################################
. /etc/rc.conf
. /etc/rc.d/functions
. /usr/lib/network/network
wireless_up() {
load_profile "$1"
[[ -n "$2" ]] && ESSID="$2" # JP: use the literal ESSID (though currently we only interpret wireless-dbus ESSIDs as regexps)
. "$SUBR_DIR/8021x"
. "$SUBR_DIR/wireless_utils"
# Check if interface exists
if [[ ! -e "/sys/class/net/$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
wireless_control "$INTERFACE" up || return 1
quirk prescan && iwlist "$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" "$CONNECTION") # JP: we could have left $3 null for default of treating ESSID as literal
# but instead we explicitly pass $CONNECTION
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 $KEY"; is it correct to omit the 'open'?
fi
else # SECURITY=none
if [[ -n "$AP" ]]; then
WEP_OPTS="ap \"$AP\""
else
WEP_OPTS="essid \"$ESSID\""
fi
fi
fi
quirk predown && wireless_control "$INTERFACE" forcedown # madwifi FS#10585
report_debug wireless_up iwconfig "$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\" $WEP_OPTS"; then
report_fail "Couldn't configure wireless."
return 1
fi
quirk predown && wireless_control "$INTERFACE" up # madwifi FS#10585
report_debug ethernet_up wep_check
wep_check "$INTERFACE" "$TIMEOUT" || return 1
;;
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 "Couldn't generate WPA configuration."
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" "$WPA_OPTS"
start_wpa "$INTERFACE" "$WPA_CONF/wpa.conf" "$WPA_OPTS" || return 1
report_debug wireless_up wpa_check
if ! wpa_check "$INTERFACE" "$TIMEOUT"; then
stop_wpa "$INTERFACE"
return 1
fi
;;
wpa-config)
. "$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" "$WPA_OPTS"
start_wpa "$INTERFACE" "$WPA_CONF" "$WPA_OPTS" || return 1
report_debug wireless_up wpa_check
if ! wpa_check "$INTERFACE" "$TIMEOUT"; then
stop_wpa "$INTERFACE"
return 1
fi
;;
esac
if ! "$CONN_DIR/ethernet" up "$1"; then
wireless_down "$1" YES
return 1
fi
}
# wireless_down PROFILE [ LEAVE ifconfig up? default no ]
wireless_down() {
load_profile "$1"
. "$SUBR_DIR/8021x"
local PROFILE="$1" NOETHERNETDOWN="$2" # JP: made declarations local?? also, why introduce these vars if you're not going to use them?
if ! checkyesno "$NOETHERNETDOWN"; then
"$CONN_DIR/ethernet" down "$PROFILE"
fi
report_debug wireless_down stop_wpa "$INTERFACE"
stop_wpa "$INTERFACE"
[[ "$SECURITY" == wpa ]] && rm -rf "/tmp/wpa.${PROFILE// /}" # remove tmp wpa config
report_debug wireless_down iwconfig "$INTERFACE" essid off key off
iwconfig "$INTERFACE" essid off key off &> /dev/null
#wireless_control "$INTERFACE" forcedown # this is now handled in ethernet down, isn't it?
}
# CONNECTION_query $INTERFACE [ profile | enabled (i.e. not rfkill-ed) | active (i.e. ifup'd) | associated | address ] [ "" | "-iproute" ]
# "query associated" also uses $4=ESSID $5=AP if known
wireless_query() {
local INTERFACE="$1" REQUEST="$2" NEW="$3"
#report_debug wireless_query "$@"
case "$REQUEST" in
profile)
# return code = 1 if iface is available to be used
# return code = 0 if unavailable (disabled, or in use by another profile or by external config)
# echo "" | "disabled" | "external" | PROFILE_NAME
if [[ ! -f "$STATE_DIR/interfaces/$INTERFACE" ]]; then
# wireless interface is up but has no registered profile
if ! wireless_query "$INTERFACE" enabled "$NEW"; then
wireless_control disable "$INTERFACE" # STATE_DIR/interface should say "disabled" instead
# iface should be down if it''s disabled
wireless_control "$INTERFACE" down "$NEW"
echo "disabled"
return 0
fi
if wireless_query "$INTERFACE" address "$NEW"; then
set_iface up "$INTERFACE" external
echo "external"
return 0
fi
# no ip address, count as inactive (even if associated)
# should we tell iface to de-associate if still associated?
# should we ifconfig iface down? no, may be up for a reason
return 1
else # interface is up and thinks it's running a profile
. "$STATE_DIR/interfaces/$INTERFACE" # these files should only contain a PROFILE=... statement
case "$PROFILE" in
external)
echo "external"
return 0
;;
disabled)
# iface should be down if it's disabled
wireless_control "$INTERFACE" down "$NEW"
echo "disabled"
return 0
;;
*)
( # use subshell to prevent overwriting currently loaded profile
. "$STATE_DIR/profiles/$PROFILE"
if ! "$CONN_DIR/$CONNECTION" query "$INTERFACE" enabled; then
report_warn "INTERFACE $INTERFACE is disabled; no longer being controlled by $PROFILE"
set_profile down "$PROFILE"
wireless_control disable "$INTERFACE"
wireless_control "$INTERFACE" down "$NEW"
echo "disabled"
exit 0
elif ! wireless_query "$INTERFACE" address "$NEW"; then
report_warn "INTERFACE $INTERFACE is inactive; no longer being controlled by $PROFILE"
set_profile down "$PROFILE"
exit 1
elif "$CONN_DIR/$CONNECTION" query "$INTERFACE" associated "$NEW" "$ESSID" "$AP"; then
echo "$PROFILE" # associated with loaded profile
exit 0
else
report_warn "INTERFACE $INTERFACE no longer being controlled by $PROFILE"
set_profile down "$PROFILE"
set_iface up "$INTERFACE" external
echo "external"
exit 0
fi
)
# return $?
;;
esac
fi
;;
enabled)
local rfkill iftype
for rfkill in /sys/class/rfkill/*; do
if [[ -e "$rfkill/type" && -e "$rfkill/state" ]]; then
iftype=$(cat "$rfkill/type")
if [[ "$iftype" == wlan || "$iftype" == "${INTERFACE:0:${#INTERFACE}-1}" ]]; then # JP: don't really know what the range of values for this is
# on my machine, the INTERFACE is wlan0 and the type=wlan
test $(cat "$rfkill/state") -eq 1 # state is 1 when enabled, 2 when killed
return $?
fi
fi
done
# # JP: this is easier, but I don't know if it can be relied on to stay in place...
# if [[ -e /sys/class/net/$INTERFACE/device/rfkill/rfkill?/state ]]; then
# test $(cat /sys/class/net/$INTERFACE/device/rfkill/rfkill?/state) -eq 1
# return $?
# fi
return 0 # default to enabled
;;
associated)
# assumed to have ip address
# return 0: associated with loaded profile
# 1: associated with other
# 2: still has ip address but unassociated: can this happen?
local ESSID="$4" AP="$5"
local essid=$(iwgetid "$INTERFACE" -r) ap=$(iwgetid "$INTERFACE" -ra)
[[ -z "$ap" ]] && return 2
if [[ -n "$AP" ]]; then
[[ $(echo "$AP" | tr 'abcdef' 'ABCDEF') == "$ap" ]]
return $?
fi
case "$ESSID" in
# [Rr][Oo][Aa][Mm]|[Oo][Pp][Ee][Nn])
# return 0
# ;;
*)
if [[ "$NEW" == -iproute ]]; then
# JP: ESSID is a regexp; we handle this here instead of in the wireless-dbus script for now
expr match "$essid" "^$ESSID\$" >/dev/null
return $? # returns true if matched more than 0 chars
else
[[ "$ESSID" == "$essid" ]]
return $?
fi
;;
esac
;;
active|address)
"$CONN_DIR/ethernet$NEW" query "$INTERFACE" "$REQUEST"
;;
*) return 1;;
esac
}
# CONNECTION_control $INTERFACE [ up | down | forcedown | enable | disable ] [ "" | "-iproute" ]
wireless_control() {
local INTERFACE="$1" ACTION="$2" NEW="$3"
#report_debug wireless_control "$@"
case "$ACTION" in
enable)
[[ $(query_iface "$INTERFACE") == disabled ]] && set_iface "$INTERFACE" down
;;
disable)
set_iface up "$INTERFACE" disabled
;;
up)
if [[ "$NEW" = -iproute ]]; then
"$CONN_DIR/ethernet-iproute" control "$INTERFACE" "$ACTION"
else
# JP: same as ethernet control ... up
#ifconfig "$INTERFACE" up 2>/dev/null
ifconfig "$INTERFACE" up
wireless_query "$INTERFACE" active
fi
;;
down|forcedown)
if [[ "$NEW" = -iproute ]]; then
"$CONN_DIR/ethernet-iproute" control "$INTERFACE" "$ACTION"
else
# JP: differs slightly from ethernet control ... down (but I don't know whether the difference is really appropriate, I'm just preserving it from older codebase)
ifconfig "$INTERFACE" 0.0.0.0
if [[ "$2" = forcedown ]]; then
ifconfig "$INTERFACE" down
fi
fi
;;
*) return 1;;
esac
}
wireless_verify() {
local INTERFACE="$1"
if [[ -d "/sys/class/net/$INTERFACE/phy80211" || -d "/sys/class/net/$INTERFACE/wireless" ]]; then
return 0
else
return 1
fi
}
wireless_$1 "$2" "$3" "$4" "$5" "$6"
exit $?
# vim: set ts=4 et sw=4:
|
