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Diffstat (limited to 'net/iwconfig.sh.BSD.in')
| -rw-r--r-- | net/iwconfig.sh.BSD.in | 592 |
1 files changed, 592 insertions, 0 deletions
diff --git a/net/iwconfig.sh.BSD.in b/net/iwconfig.sh.BSD.in new file mode 100644 index 00000000..3a276cda --- /dev/null +++ b/net/iwconfig.sh.BSD.in @@ -0,0 +1,592 @@ +# Copyright 2007-2008 Roy Marples <roy@marples.name> +# All rights reserved. Released under the 2-clause BSD license. + +_config_vars="$_config_vars ssid mode associate_timeout preferred_aps" +_config_vars="$_config_vars blacklist_aps" + +iwconfig_depend() +{ + program /sbin/ifconfig + after plug + before interface + provide wireless +} + +iwconfig_get_wep_status() +{ + local status="disabled" + local mode=$(LC_ALL=C ifconfig "${IFACE}" \ + | sed -n -e 's/^[[:space:]]*authmode \([^ ]*\) privacy ON .*/\1/p') + if [ -n "${mode}" ] ; then + status="enabled - ${mode}" + fi + + echo "(WEP ${status})" +} + +_iwconfig_get() +{ + LC_ALL=C ifconfig "${IFACE}" | \ + sed -n -e "s/^[[:space:]]*ssid \(.*\) channel \([0-9]*\).* bssid \(..:..:..:..:..:..\)\$/\\$1/p" +} + +_get_ssid() +{ + local ssid="$(_iwconfig_get 1)" + # If the ssid has a space then it's wrapped in quotes. This is a + # problem if the real ssid has a quote at the start or the end :/ + ssid=${ssid#\"} + ssid=${ssid%\"} + echo "${ssid}" +} + +_get_ap_mac_address() +{ + _iwconfig_get 3 +} + +_get_channel() +{ + _iwconfig_get 2 +} + +iwconfig_report() +{ + local m="connected to" + local ssid="$(_get_ssid)" + local mac="$(_get_ap_mac_address "${iface}")" + [ -n "${mac}" ] && mac=" at ${mac}" + local wep_status="$(iwconfig_get_wep_status "${iface}")" + local channel="$(_get_channel)" + [ -n "${channel}" ] && channel="on channel ${channel} " + + eindent + einfo "${IFACE} ${m} \"${ssid}\"${mac}" + einfo "${channel}${wep_status}" + eoutdent +} + +iwconfig_get_wep_key() +{ + local mac="$1" key= + [ -n "${mac}" ] && mac="$(echo "${mac}" | sed -e 's/://g')" + eval key=\$mac_key_${mac} + [ -z "${key}" ] && eval key=\$key_${SSIDVAR} + echo "${key:--}" +} + +iwconfig_user_config() +{ + local conf= + eval set -- \$ifconfig_${SSIDVAR} + for conf in "$@" ; do + ifconfig "${IFACE}" ${conf} + done +} + +iwconfig_set_mode() +{ + local x= opt= unopt="hostap adhoc" + case "$1" in + master|hostap) unopt="adhoc" opt="hostap" ;; + ad-hoc|adhoc) unopt="hostap" opt="adhoc" ;; + esac + for x in ${unopt} ; do + ifconfig "${IFACE}" -mediaopt ${x} + done + for x in ${opt} ; do + ifconfig "${IFACE}" mediaopt ${x} + done +} + +iwconfig_setup_specific() +{ + local mode="${1:-master}" channel= + if [ -z "${SSID}" ]; then + eerror "${IFACE} requires an SSID to be set to operate in ${mode} mode" + eerror "adjust the ssid_${IFVAR} setting in /etc/conf.d/net" + return 1 + fi + + iwconfig_set_mode "${mode}" || return 1 + + SSIDVAR=$(shell_var "${SSID}") + local key=$(iwconfig_get_wep_key) + + # Now set the key + ifconfig "${IFACE}" wepkey "${key}" + + ifconfig "${IFACE}" ssid "${SSID}" || return 1 + + eval channel=\$channel_${IFVAR} + # We default the channel to 3 + ifconfig "${IFACE}" channel "${channel:-3}" || return 1 + + iwconfig_user_config + iwconfig_report "${iface}" + return 0 +} + +iwconfig_associate() +{ + local mac="$1" channel="$2" caps="$3" + local mode= w="(WEP Disabled)" key= + + SSIDVAR=$(shell_var "${SSID}") + key=$(iwconfig_get_wep_key "${mac}") + case "${caps}" in + [EI]P*) + if [ "${key}" = "-" ] ; then + ewarn "WEP key is not set for \"${SSID}\"; not connecting" + return 1 + fi + ;; + "") ;; + *) + if [ "${key}" != "-" ] ; then + key="-" + ewarn "\"${SSID}\" is not WEP enabled; ignoring setting" + fi + ;; + esac + + # Set mode accordingly + case "${caps}" in + *E*) + mode="managed" + if LC_ALL=C ifconfig "${IFACE}" | \ + grep -q "^[[:space:]]*media: .*adhoc" ; then + ifconfig "${IFACE}" down -mediaopt adhoc up + fi + ;; + *I*) + mode="adhoc" + if ! LC_ALL=C ifconfig "${IFACE}" | \ + grep -q "^[[:space:]]*media: .*adhoc" ; then + ifconfig "${IFACE}" down mediaopt adhoc up + fi + ;; + *) + if LC_ALL=C ifconfig "${IFACE}" \ + | grep -q "^[[:space:]]*media: .*adhoc" ; then + mode="adhoc" + else + mode="managed" + fi + ;; + esac + + if [ "${key}" = "-" ] ; then + ifconfig "${IFACE}" wepmode off + else + ifconfig "${IFACE}" wepmode on + ifconfig "${IFACE}" deftxkey 1 + w=$(iwconfig_get_wep_status) + fi + + ebegin "Connecting to \"${SSID}\" in ${mode} mode ${w}" + + if ! ifconfig "${IFACE}" wepkey "${key}" ; then + eerror "Invalid WEP key ${key}" + return 1 + fi + + ifconfig "${IFACE}" ssid "${SSID}" || return 1 + iwconfig_user_config + + if [ "${SSID}" != "any" ] && type preassociate >/dev/null 2>/dev/null ; then + veinfo "Running preassociate function" + veindent + ( preassociate ) + local e=$? + veoutdent + if [ ${e} -eq 0 ] ; then + veend 1 "preassociate \"${SSID}\" on ${IFACE} failed" + return 1 + fi + fi + + local timeout= i=0 + eval timeout=\$associate_timeout_${IFVAR} + timeout=${timeout:-10} + + [ ${timeout} -eq 0 ] \ + && vewarn "WARNING: infinite timeout set for association on ${IFACE}" + + while true; do + _has_carrier && break + sleep 1 + + [ ${timeout} -eq 0 ] && continue + i=$((${i} + 1)) + [ ${i} -ge ${timeout} ] && { eend 1; return 1; } + done + + _has_carrier || { eend 1; return 1; } + eend 0 + + if [ "${SSID}" = "any" ]; then + SSID="$(_get_ssid)" + iwconfig_associate + return $? + fi + + iwconfig_report + + if type postassociate >/dev/null 2>/dev/null ; then + veinfo "Running postassociate function" + veindent + ( postassociate ) + veoutdent + fi + + return 0 +} + +iwconfig_scan() +{ + local x= i=0 scan= quality= + einfo "Scanning for access points" + eindent + + scan="$(LC_ALL=C ifconfig -v "${IFACE}" list scan 2>/dev/null | sed -e "1 d" -e "s/$/'/g" -e "s/^/'/g")" + while [ ${i} -lt 3 -a -z "${scan}" ] ; do + scan="${scan}${scan:+ }$(LC_ALL=C ifconfig -v "${IFACE}" scan 2>/dev/null | sed -e "1 d" -e "s/$/'/g" -e "s/^/'/g")" + i=$((${i} + 1)) + done + + APS=-1 + eval set -- ${scan} + for line in "$@" ; do + APS=$((${APS} + 1)) + set -- ${line} + while true ; do + case "$1" in + *:*:*:*:*:*) break ;; + esac + eval SSID_${APS}="\"\${SSID_${APS}}\${SSID_${APS}:+ }$1\"" + shift + done + eval MAC_${APS}="$(echo "$1" | tr '[:lower:]' '[:upper:]')" + eval CHAN_${APS}="$2" + quality=${4%:*} + shift ; shift ; shift ; shift ; shift + eval CAPS_${APS}="\"$*\"" + + # Add 1000 for managed nodes as we prefer them to adhoc + set -- $* + case "$1" in + *E*) eval QUAL_${APS}=$((${quality} + 1000)) ;; + *) eval QUAL_${APS}=\$quality ;; + esac + done + + if [ -z "${MAC_0}" ]; then + ewarn "no access points found" + eoutdent + return 1 + fi + + # Sort based on quality + local i=0 k=1 a= b= x= t= + while [ ${i} -lt ${APS} ] ; do + k=$((${i} + 1)) + while [ ${k} -le ${APS} ] ; do + eval a=\$QUALITY_${i} + [ -z "${a}" ] && break + eval b=\$QUALITY_${k} + if [ -n "${b}" -a "${a}" -lt "${b}" ] ; then + for x in MAC SSID CHAN QUALITY CAPS ; do + eval t=\$${x}_${i} + eval ${x}_${i}=\$${x}_${k} + eval ${x}_${k}=\$t + done + fi + k=$((${k} + 1)) + done + i=$((${i} + 1)) + done + + # Strip any duplicates + local i=0 k=1 a= b= + while [ ${i} -lt ${APS} ] ; do + k=$((${i} + 1)) + while [ ${k} -le ${APS} ] ; do + eval a=\$MAC_${i} + eval b=\$MAC_${k} + if [ "${a}" = "${b}" ] ; then + eval a=\$QUALITY_${i} + eval b=\$QUALITY_${k} + if [ -n "${a}" -a -n "${b}" ] ; then + if [ ${a} -ge ${b} ] ; then + unset MAC_${k} SSID_${k} CHAN_${k} QUALITY_${k} CAPS_${k} + else + unset MAC_${i} SSID_${i} CHAN_${i} QUALITY_${i} CAPS_${i} + fi + else + unset MAC_${k} SSID_${k} CHAN_${k} QUALITY_${k} CAPS_${k} + fi + fi + k=$((${k} + 1)) + done + i=$((${i} + 1)) + done + + local i=0 e= m= s= + + while [ ${i} -le ${APS} ] ; do + eval x=\$MAC_${i} + if [ -z "${x}" ] ; then + i=$((${i} + 1)) + continue + fi + + eval m=\$MODE_${i} + [ -n "${m}" ] && m=", ${m}" + eval s=\$SSID_${i} + eval q=\$QUALITY_${i} + eval e=\$CAPS_${i} + case "${e}" in + [EI]P*) e=", encrypted" ;; + *) e="" ;; + esac + if [ -z "${s}" ] ; then + einfo "Found ${x}${m}${e}" + else + einfo "Found \"${s}\" at ${x}${m}${e}" + fi + + x="$(echo "${x}" | sed -e 's/://g')" + eval x=\$mac_ssid_${x} + if [ -n "${x}" ] ; then + eval SSID_${i}=\$x + s=${x} + eindent + einfo "mapping to \"${x}\"" + eoutdent + fi + + eval set -- $(_flatten_array "blacklist_aps_${IFVAR}") + [ $# = 0 ] && eval set -- $(_flatten_array "blacklist_aps") + for x; do + if [ "${x}" = "${s}" ] ; then + ewarn "${s} has been blacklisted - not connecting" + unset SSID_${i} MAC_${i} CHAN_${i} QUALITY_${i} CAPS_${i} + fi + done + i=$((${i} + 1)) + done + eoutdent + return 0 +} + +iwconfig_force_preferred() +{ + eval set -- $(_flatten_array "preferred_aps_${IFVAR}") + [ $# = 0 ] && eval set -- $(_flatten_array "preferred_aps") + [ $# = 0 ] && return 1 + + ewarn "Trying to force preferred in case they are hidden" + local ssid= + for ssid; do + local found_AP=false i=0 e= + while [ ${i} -le ${APS:--1} ] ; do + eval e=\$SSID_${i} + if [ "${e}" = "${ssid}" ] ; then + found_AP=true + break + fi + i=$((${i} + 1)) + done + if ! ${found_AP} ; then + SSID=${ssid} + iwconfig_associate && return 0 + fi + done + + ewarn "Failed to associate with any preferred access points on ${IFACE}" + return 1 +} + +iwconfig_connect_preferred() +{ + eval set -- $(_flatten_array "preferred_aps_${IFVAR}") + [ $# = 0 ] && eval set -- $(_flatten_array "preferred_aps") + [ $# = 0 ] && return 1 + + local ssid= i=0 mode= mac= caps= freq= chan= + for ssid; do + while [ ${i} -le ${APS} ] ; do + eval e=\$SSID_${i} + if [ "${e}" = "${ssid}" ] ; then + SSID=${e} + eval mac=\$MAC_${i} + eval caps=\$CAPS_${i} + eval freq=\$FREQ_${i} + eval chan=\$CHAN_${i} + iwconfig_associate "${mac}" \ + "${chan}" "${caps}" && return 0 + fi + i=$((${i} + 1)) + done + done + + return 1 +} + +iwconfig_connect_not_preferred() +{ + local ssid= i=0 mode= mac= caps= freq= chan= pref= + + while [ ${i} -le ${APS} ] ; do + eval e=\$SSID_${i} + if [ -z "${e}" ] ; then + i=$((${i} + 1)) + continue + fi + + eval set -- $(_flatten_array "preferred_aps_${IFVAR}") + [ $# = 0 ] && eval set -- $(_flatten_array "preferred_aps") + pref=false + for ssid; do + if [ "${e}" = "${ssid}" ] ; then + pref=true + break + fi + done + + if ! ${pref} ; then + SSID=${e} + eval mac=\$MAC_${i} + eval caps=\$CAPS_${i} + eval freq=\$FREQ_${i} + eval chan=\$CHAN_${i} + iwconfig_associate "${mac}" \ + "${chan}" "${caps}" && return 0 + fi + i=$((${i} + 1)) + done + + return 1 +} + +iwconfig_defaults() +{ + # Set some defaults + #ifconfig "${iface}" txpower 100 2>/dev/null + ifconfig "${IFACE}" bssid - + ifconfig "${IFACE}" ssid - + ifconfig "${IFACE}" wepkey 1:- wepkey 2:- wepkey 3:- wepkey 4:- + ifconfig "${IFACE}" authmode open + ifconfig "${IFACE}" -mediaopt adhoc + ifconfig "${IFACE}" -mediaopt hostap +} + +iwconfig_configure() +{ + local x APS + eval SSID=\$ssid_${IFVAR} + + # Setup ad-hoc mode? + eval x=\$mode_${IFVAR} + x=${x:-managed} + case "${x}" in + ad-hoc|adhoc|hostap|master) iwconfig_setup_specific "${x}" ;; + esac + + if [ "${x}" != "managed" -a "${x}" != "auto" -a "${x}" != "ad-hoc" -a "${x}" != "adhoc" -a ${x} != "master" ] ; then + eerror "Only managed, ad-hoc, master and auto modes are supported" + return 1 + fi + + # Has an SSID been forced? + if [ -n "${SSID}" ]; then + iwconfig_set_mode "${x}" + iwconfig_associate && return 0 + [ "${SSID}" = "any" ] && iwconfig_force_preferred && return 0 + + eval SSID=\$adhoc_ssid_${IFVAR} + if [ -n "${SSID}" ]; then + iwconfig_setup_specific adhoc + return $? + fi + return 1 + fi + + # Are we forcing preferred only? + eval x=\$associate_order_${IFVAR} + [ -n "${x}" ] && associate_order=${x} + associate_order=${associate_order:-any} + if [ "${associate_order}" = "forcepreferredonly" ]; then + iwconfig_force_preferred && return 0 + else + iwconfig_scan || return 1 + iwconfig_connect_preferred && return 0 + [ "${associate_order}" = "forcepreferred" ] || \ + [ "${associate_order}" = "forceany" ] && \ + iwconfig_force_preferred && return 0 + [ "${associate_order}" = "any" ] || \ + [ "${associate_order}" = "forceany" ] && \ + iwconfig_connect_not_preferred && return 0 + fi + + e="associate with" + [ -z "${MAC_0}" ] && e="find" + [ "${preferred_aps}" = "force" ] || \ + [ "${preferred_aps}" = "forceonly" ] && \ + e="force" + e="Couldn't ${e} any access points on ${IFACE}" + + eval SSID=\$adhoc_ssid_${IFVAR} + if [ -n "${SSID}" ]; then + ewarn "${e}" + iwconfig_setup_specific adhoc + return $? + fi + + eerror "${e}" + return 1 +} + +iwconfig_pre_start() +{ + # We don't configure wireless if we're being called from + # the background + yesno ${IN_BACKGROUND} && return 0 + + service_set_value "SSID" "" + _exists || return 0 + + if ! _is_wireless ; then + veinfo "${IFACE} is not wireless" + return 0 + fi + + iwconfig_defaults + iwconfig_user_config + + # Set the base metric to be 2000 + metric=2000 + + einfo "Configuring wireless network for ${IFACE}" + + if iwconfig_configure ; then + service_set_value "SSID" "${SSID}" + return 0 + fi + + eerror "Failed to configure wireless for ${IFACE}" + iwconfig_defaults + #iwconfig "${IFACE}" txpower 0 2>/dev/null + unset SSID SSIDVAR + _down + return 1 +} + +iwconfig_post_stop() +{ + yesno ${IN_BACKGROUND} && return 0 + _is_wireless || return 0 + iwconfig_defaults + #iwconfig "${IFACE}" txpower 0 2>/dev/null +} |