oblique
parent
309e8e353b
commit
f831ad98d6
59
create_ap
59
create_ap
@ -38,6 +38,7 @@ usage() {
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echo " --ieee80211n Enable IEEE 802.11n (HT)"
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echo " --ht_capab <HT> HT capabilities (default: [HT40+])"
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echo " --country <code> Set two-letter country code for regularity (example: US)"
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echo " --freq-band <GHz> Set frequency band. Valid inputs: 2.4, 5 (default: 2.4)"
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echo " --driver Choose your WiFi adapter driver (default: nl80211)"
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echo " --no-virt Do not create virtual interface"
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echo " --fix-unmanaged If NetworkManager shows your interface as unmanaged after you"
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@ -150,17 +151,21 @@ can_be_ap() {
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can_transmit_to_channel() {
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IFACE=$1
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CHANNEL=$2
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CHANNEL_NUM=$2
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if [[ $USE_IWCONFIG -eq 0 ]]; then
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CHANNEL_INFO=$(get_adapter_info ${IFACE} | grep "MHz \[${CHANNEL}\]")
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if [[ $FREQ_BAND == 2.4 ]]; then
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CHANNEL_INFO=$(get_adapter_info ${IFACE} | grep " 24[0-9][0-9] MHz \[${CHANNEL_NUM}\]")
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else
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CHANNEL_INFO=$(get_adapter_info ${IFACE} | grep " \(49[0-9][0-9]\|5[0-9]\{3\}\) MHz \[${CHANNEL_NUM}\]")
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fi
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[[ -z "${CHANNEL_INFO}" ]] && return 1
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[[ "${CHANNEL_INFO}" == *no\ IR* ]] && return 1
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[[ "${CHANNEL_INFO}" == *disabled* ]] && return 1
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return 0
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else
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CHANNEL=$(printf '%02d' ${CHANNEL})
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CHANNEL_INFO=$(iwlist ${IFACE} channel | grep "Channel ${CHANNEL} :")
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CHANNEL_NUM=$(printf '%02d' ${CHANNEL_NUM})
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CHANNEL_INFO=$(iwlist ${IFACE} channel | grep "Channel ${CHANNEL_NUM} :")
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[[ -z "${CHANNEL_INFO}" ]] && return 1
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return 0
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fi
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@ -184,6 +189,10 @@ ieee80211_frequency_to_channel() {
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fi
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}
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is_5ghz_frequency() {
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[[ $1 =~ ^(49[0-9]{2})|(5[0-9]{3})$ ]]
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}
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is_wifi_connected() {
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if [[ $USE_IWCONFIG -eq 0 ]]; then
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iw dev "$1" link 2>&1 | grep -E '^Connected to' > /dev/null 2>&1 && return 0
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@ -372,7 +381,7 @@ networkmanager_wait_until_unmanaged() {
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}
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CHANNEL=1
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CHANNEL=default
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GATEWAY=192.168.12.1
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WPA_VERSION=1+2
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ETC_HOSTS=0
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@ -384,6 +393,7 @@ DRIVER=nl80211
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NO_VIRT=0
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FIX_UNMANAGED=0
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COUNTRY=
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FREQ_BAND=2.4
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CONFDIR=
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WIFI_IFACE=
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@ -487,7 +497,7 @@ clean_exit() {
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# if the user press ctrl+c then execute die()
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trap "die" SIGINT
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ARGS=$(getopt -o hc:w:g:dnm: -l "help","hidden","ieee80211n","ht_capab:","driver:","no-virt","fix-unmanaged","country:" -n $(basename $0) -- "$@")
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ARGS=$(getopt -o hc:w:g:dnm: -l "help","hidden","ieee80211n","ht_capab:","driver:","no-virt","fix-unmanaged","country:","freq-band:" -n $(basename $0) -- "$@")
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[[ $? -ne 0 ]] && exit 1
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eval set -- "$ARGS"
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@ -556,6 +566,11 @@ while :; do
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COUNTRY="$1"
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shift
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;;
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--freq-band)
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shift
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FREQ_BAND="$1"
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shift
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;;
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--)
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shift
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break
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@ -578,6 +593,24 @@ if [[ $FIX_UNMANAGED -eq 1 ]]; then
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exit 0
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fi
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if [[ $FREQ_BAND != 2.4 && $FREQ_BAND != 5 ]]; then
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echo "ERROR: Invalid frequency band" >&2
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exit 1
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fi
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if [[ $CHANNEL == default ]]; then
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if [[ $FREQ_BAND == 2.4 ]]; then
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CHANNEL=1
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else
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CHANNEL=36
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fi
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fi
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if [[ $FREQ_BAND != 5 && $CHANNEL -gt 14 ]]; then
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echo "Channel number is greater than 14, assuming 5GHz frequency band"
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FREQ_BAND=5
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fi
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WIFI_IFACE=$1
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if ! is_wifi_interface ${WIFI_IFACE}; then
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@ -721,6 +754,11 @@ if [[ $NO_VIRT -eq 0 ]]; then
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WIFI_IFACE_FREQ=$(iw dev ${WIFI_IFACE} link | grep -i freq | awk '{print $2}')
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WIFI_IFACE_CHANNEL=$(ieee80211_frequency_to_channel ${WIFI_IFACE_FREQ})
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echo -n "${WIFI_IFACE} is already associated with channel ${WIFI_IFACE_CHANNEL} (${WIFI_IFACE_FREQ} MHz)"
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if is_5ghz_frequency $WIFI_IFACE_FREQ; then
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FREQ_BAND=5
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else
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FREQ_BAND=2.4
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fi
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if [[ $WIFI_IFACE_CHANNEL -ne $CHANNEL ]]; then
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echo ", fallback to channel ${WIFI_IFACE_CHANNEL}"
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CHANNEL=$WIFI_IFACE_CHANNEL
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@ -748,7 +786,7 @@ if [[ $NO_VIRT -eq 0 ]]; then
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WIFI_IFACE=${VWIFI_IFACE}
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fi
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can_transmit_to_channel ${WIFI_IFACE} ${CHANNEL} || die "Your adapter can not transmit to channel ${CHANNEL}."
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can_transmit_to_channel ${WIFI_IFACE} ${CHANNEL} || die "Your adapter can not transmit to channel ${CHANNEL}, frequency band ${FREQ_BAND}GHz."
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if networkmanager_is_running && ! networkmanager_iface_is_unmanaged ${WIFI_IFACE}; then
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echo -n "Network Manager found, set ${WIFI_IFACE} as unmanaged device... "
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@ -764,7 +802,6 @@ cat << EOF > $CONFDIR/hostapd.conf
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ssid=${SSID}
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interface=${WIFI_IFACE}
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driver=${DRIVER}
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hw_mode=g
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channel=${CHANNEL}
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ctrl_interface=$CONFDIR/hostapd_ctrl
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ctrl_interface_group=0
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@ -776,6 +813,12 @@ if [[ -n $COUNTRY ]]; then
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echo "country_code=${COUNTRY}" >> $CONFDIR/hostapd.conf
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fi
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if [[ $FREQ_BAND == 2.4 ]]; then
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echo "hw_mode=g" >> $CONFDIR/hostapd.conf
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else
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echo "hw_mode=a" >> $CONFDIR/hostapd.conf
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fi
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if [[ $IEEE80211N -eq 1 ]]; then
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cat << EOF >> $CONFDIR/hostapd.conf
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ieee80211n=1
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