Merge e2b969b68a into 205814a2ea

* add options for wifi66

* rebase to 0.7.6 and upgrade version to 0.8.0-unstable0

* fix channel detection

* can_transmit_to_channel: fix 5GHz and 6GHz freq range

* can_transmit_to_channel: limit freq integer part to 4 digits

* enable wmm when wifi 6 is enabled

* lint remove stray spaces

* Revert "lint remove stray spaces"

This reverts commit 8830b95cff.

---------

Co-authored-by: garywill <garywill@disroot.org>
Co-authored-by: Phani Pavan K <kphanipavan+goose@gmail.com>

MostLikelyUse

@@ -0,0 +1,10 @@
+Simplest call.
+
+calk iwconfig
+find wifi card name
+in mant cases this is wlo1 on distros like Fedora
+
+sudo ./lnxrouter --ap <yourwirelessdevice> <newhotspotname> -p <yourpassword> -g <thenewserversipaddress>
+
+-g is important otherwise the server address changes everytime.
+also, unless dhcp is properly configured you're going to have to statically address your clients.

README.md

@@ -82,9 +82,9 @@ I'm currently not packaging for any distro. If you do, open a PR and add the lin
 - iptables (or nftables with `iptables-nft` translation linked)
 - WiFi hotspot dependencies
   - hostapd
-  - iw
+  - iw (or iwconfig, when iw can not recognize adapter)
-  - iwconfig (you only need this if 'iw' can not recognize your adapter)
   - haveged (optional)
+  - crda and wireless-regdb (optional)
 
 
 

lnxrouter

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-VERSION=0.7.6
+VERSION=0.8.0-unstable2
 PROGNAME="$(basename "$0")"
 
 export LC_ALL=C
@@ -124,8 +124,24 @@ Options:
     --vht-seg1-ch <channel> Channel index of VHT center frequency for secondary
                             (second 80MHz) segment. Use with '--vht-ch-width 3'
 
+    WiFi 6 (802.11ax) configs:
+    --wifi6                 Enable IEEE 802.11ax (HE)
+    --req-he                Require station HE (High Efficiency) mode
+
+    --he-ch-width <index>   Index of HE channel width:
+                                0 for 20MHz or 40MHz (default)
+                                1 for 80MHz
+                                2 for 160MHz
+                                3 for 80+80MHz (Non-contigous 160MHz)
+    --he-seg0-ch <channel>  Channel index of HE center frequency for primary
+                            segment. Use with '--he-ch-width'
+    --he-seg1-ch <channel>  Channel index of HE center frequency for secondary
+                            (second 80MHz) segment. Use with '--he-ch-width 3'
+
   Instance managing:
     --daemon                Run in background
+    --keep-confdir          Don't delete the temporary config dir after exit
+
     -l, --list-running      Show running instances
     --lc, --list-clients <id|interface>
                             List clients of an instance. Or list neighbors of
@@ -197,11 +213,16 @@ define_global_variables(){
     REQUIREHT=0
     IEEE80211AC=0
     REQUIREVHT=0
+    IEEE80211AX=0
+    REQUIREHE=0
     HT_CAPAB='[HT40+]'
     VHT_CAPAB=
     VHTCHANNELWIDTH=0
     VHTSEG0CHINDEX=0
     VHTSEG1CHINDEX=0
+    HECHANNELWIDTH=0
+    HESEG0CHINDEX=0
+    HESEG1CHINDEX=0
     DRIVER=nl80211
     NO_VIRT=0 # not use virtual interface
     COUNTRY=
@@ -213,6 +234,7 @@ define_global_variables(){
     QR=0 # show wifi qr
 
     # script variables
+    PHY=
     VWIFI_IFACE=  # virtual wifi interface name, if created
     VIRT_NAME= # name to use for virtual interface if --virt-name is used
     AP_IFACE=     # can be VWIFI_IFACE or WIFI_IFACE
@@ -231,6 +253,7 @@ define_global_variables(){
     NM_PID=
     FIREWALLD_PID=
     TMP_FIREWALLD_ZONE=
+    KEEP_CONFDIR=
 }
 
 parse_user_options(){
@@ -414,6 +437,14 @@ parse_user_options(){
                 shift
                 IEEE80211AC=1
                 ;;
+            --wifi6|--ieee80211ax)
+                shift
+                IEEE80211AX=1
+                ;;
+            --req-he|--require-he)
+                shift
+                REQUIREHE=1
+                ;;
             --req-vht|--require-vht)
                 shift
                 REQUIREVHT=1
@@ -443,6 +474,21 @@ parse_user_options(){
                 VHTSEG1CHINDEX="$1"
                 shift
                 ;;
+            --he-ch-width|--he-channel-width)
+                shift
+                HECHANNELWIDTH="$1"
+                shift
+                ;;
+            --he-seg0-ch|--he-seg0-channel)
+                shift
+                HESEG0CHINDEX="$1"
+                shift
+                ;;
+            --he-seg1-ch|--he-seg1-channel)
+                shift
+                HESEG1CHINDEX="$1"
+                shift
+                ;;
             --driver)
                 shift
                 DRIVER="$1"
@@ -507,6 +553,10 @@ parse_user_options(){
                 LIST_CLIENTS_ID="$1"
                 shift
                 ;;
+            --keep-confdir)
+                shift
+                KEEP_CONFDIR=1
+                ;;
 
             *)
                 echo  "Invalid parameter: $1" 1>&2
@@ -582,7 +632,6 @@ get_interface_phy_device() { # only for wifi interface
             return 0
         fi
     done
-    echo "Failed to get phy interface" >&2
     return 1
 }
 
@@ -622,15 +671,22 @@ can_be_ap() {
 }
 
 can_transmit_to_channel() {
-    local IFACE CHANNEL_NUM CHANNEL_INFO
+    local IFACE CHANNEL_NUM CHANNEL_INFO CHANNEL_FREQ_FILTER
     IFACE=$1
     CHANNEL_NUM=$2
+    if [[ $FREQ_BAND == "2.4" ]]; then
+        CHANNEL_FREQ_FILTER="(24)"
+    elif [[ $FREQ_BAND -eq 5 ]]; then
+        CHANNEL_FREQ_FILTER="(5[1-8])"
+    elif [[ $FREQ_BAND -eq 6 ]]; then
+        CHANNEL_FREQ_FILTER="((59)|(6[0-9])|(7[0-1]))"
+    fi
 
     if [[ $USE_IWCONFIG -eq 0 ]]; then
-        CHANNEL_INFO=$(get_adapter_info "${IFACE}" | grep -E " [0-9]+(\.[0-9]+){0,1} MHz \[${CHANNEL_NUM}\]")
+        CHANNEL_INFO=$(get_adapter_info "${IFACE}" | grep -E " ${CHANNEL_FREQ_FILTER}[0-9]{2}(\.[0-9]+){0,1} MHz \[${CHANNEL_NUM}\]")
         [[ -z "${CHANNEL_INFO}" ]] && return 1
-        [[ "${CHANNEL_INFO}" == *no\ IR* ]] && return 1
+        [[ "${CHANNEL_INFO}" == *no\ IR* ]] && return 2
-        [[ "${CHANNEL_INFO}" == *disabled* ]] && return 1
+        [[ "${CHANNEL_INFO}" == *disabled* ]] && return 3
         return 0
     else
         CHANNEL_NUM=$(printf '%02d' ${CHANNEL_NUM})
@@ -640,20 +696,26 @@ can_transmit_to_channel() {
     fi
 }
 
-# taken from iw/util.c
 ieee80211_frequency_to_channel() {
     local FREQ=$1
-    if [[ $FREQ -eq 2484 ]]; then
+
+    # 2.4G
+    if [[ $FREQ -ge 2412 && $FREQ -le 2472 ]]; then # 2.4 GHz band: Channels 1-13 (2412~2472 MHz)
+        echo $(( (FREQ - 2407) / 5 ))
+    elif [[ $FREQ -eq 2484 ]]; then # 2.4 GHz Channel 14 (2484 MHz, Japan only)
         echo 14
-    elif [[ $FREQ -lt 2484 ]]; then
+
-        echo $(( ($FREQ - 2407) / 5 ))
+    # 5G
-    elif [[ $FREQ -ge 4910 && $FREQ -le 4980 ]]; then
+    elif [[ $FREQ -ge 5160 && $FREQ -le 5885 ]]; then # 5 GHz band: Standard Channels 36-165 (5180~5825 MHz) (extra: 32, 169-177)
-        echo $(( ($FREQ - 4000) / 5 ))
+        echo $(( (FREQ - 5000) / 5 ))
-    elif [[ $FREQ -le 45000 ]]; then
+
-        echo $(( ($FREQ - 5000) / 5 ))
+    # 6G
-    elif [[ $FREQ -ge 58320 && $FREQ -le 64800 ]]; then
+    elif [[ $FREQ -ge 5955 && $FREQ -le 7115 ]]; then # 6 GHz band: Channels 1-233 (5955~7115 MHz), Wi-Fi 6E/7
-        echo $(( ($FREQ - 56160) / 2160 ))
+        echo $(( (FREQ - 5950) / 5 ))
-    else
+    elif [[ $FREQ -eq 5935 ]]; then # 6 GHz band: Special case for 5935 MHz (Channel 2, rare)
+        echo 2
+
+    else # Frequency not in supported Wi-Fi bands (2.4/5/6 GHz)
         echo 0
     fi
 }
@@ -1324,7 +1386,7 @@ _cleanup() {
 
     ip addr flush "${SUBNET_IFACE}"
 
-    rm -rf "$CONFDIR"
+    [[ ! "$KEEP_CONFDIR" -eq 1 ]] && rm -rf "$CONFDIR"
 
     ip link set down dev "${SUBNET_IFACE}"
 
@@ -1360,6 +1422,7 @@ clean_iptables() {
 
 cleanup() {
     trap "" SIGINT SIGUSR1 SIGUSR2 EXIT SIGTERM
+    touch "$CONFDIR/exit_$(date +"%Y-%m-%d_%H:%M:%S.%6N")"
     echo
     echo
     echo "Doing cleanup.. "
@@ -1402,12 +1465,14 @@ init_conf_dirs() {
     cd "$TMPDIR" || die "Couldn't change directory to linux-router's temporary path"
 
     CONFDIR="$(mktemp -d $TMPDIR/lnxrouter.${TARGET_IFACE}.conf.XXXXXX)" || die "Instance couldn't make config dir" # config dir for one instance
-    chmod 755 "$CONFDIR"
+    echo "Config dir: $CONFDIR"
-    #echo "Config dir: $CONFDIR"
+    chmod 755 "$CONFDIR" || die "chmod config dir failed"
     echo $$ > "$CONFDIR/pid"
 
+    touch "$CONFDIR/begin_$(date +"%Y-%m-%d_%H:%M:%S.%6N")"
+
     COMMON_CONFDIR="$TMPDIR/lnxrouter_common.conf" # config dir for all instances
-    mkdir -p "$COMMON_CONFDIR"
+    mkdir -p "$COMMON_CONFDIR" || die "Failed creating common config dir"
 }
 
 #== functions to deal with running instances
@@ -1657,9 +1722,14 @@ daemonizing_check(){
 
 #============================
 check_wifi_settings() {
+    PHY="$(get_interface_phy_device "$WIFI_IFACE")"
+    if [[ -z "$PHY" ]]; then
+        echo "ERROR: Can't get phy of wifi interface '$WIFI_IFACE' (Did you spell the interface name right?)" >&2
+        exit 1
+    fi
 
     if ! ( which iw > /dev/null 2>&1 && iw dev "$WIFI_IFACE" info > /dev/null 2>&1 ); then
-        echo "WARN: Can't use 'iw' to operate interfce '$WIFI_IFACE', trying 'iwconfig' (not as good as 'iw') ... (Did you spell the interface name right?)" >&2
+        echo "WARN: Can't use 'iw' to operate interfce '$WIFI_IFACE', trying 'iwconfig' (not as good as 'iw') ..." >&2
         USE_IWCONFIG=1
     fi
 
@@ -1846,6 +1916,8 @@ prepare_wifi_interface() {
             CHANNEL=36
         fi
     fi
+
+    echo "Freq band: $FREQ_BAND GHz   Channel: $CHANNEL"
 }
 
 decide_subnet_interface() {
@@ -1930,6 +2002,16 @@ write_hostapd_conf() {
         echo "require_vht=1" >> "$CONFDIR/hostapd.conf"
     fi
 
+    if [[ $IEEE80211AX -eq 1 ]]; then
+        echo "ieee80211ax=1" >> "$CONFDIR/hostapd.conf"
+    fi
+
+    if [[ $REQUIREHE -eq 1 ]]; then
+        echo "require_he=1" >> "$CONFDIR/hostapd.conf"
+    fi
+
+
+
     if [[ -n "$VHT_CAPAB" ]]; then
         echo "vht_capab=${VHT_CAPAB}" >> "$CONFDIR/hostapd.conf"
     fi
@@ -1952,7 +2034,25 @@ write_hostapd_conf() {
 		EOF
 	fi
 
-    if [[ $IEEE80211N -eq 1 ]] || [[ $IEEE80211AC -eq 1 ]]; then
+    if [[ $HECHANNELWIDTH -gt 0 ]]; then
+		cat <<- EOF >> "$CONFDIR/hostapd.conf"
+			he_oper_chwidth=${HECHANNELWIDTH}
+		EOF
+	fi
+
+	if [[ $HESEG0CHINDEX -gt 0 ]]; then
+		cat <<- EOF >> "$CONFDIR/hostapd.conf"
+			he_oper_centr_freq_seg0_idx=${HESEG0CHINDEX}
+		EOF
+	fi
+
+	if [[ $HESEG1CHINDEX -gt 0 ]]; then
+		cat <<- EOF >> "$CONFDIR/hostapd.conf"
+			he_oper_centr_freq_seg1_idx=${HESEG1CHINDEX}
+		EOF
+	fi
+
+    if [[ $IEEE80211N -eq 1 ]] || [[ $IEEE80211AC -eq 1 ]] || [[ $IEEE80211AX -eq 1 ]]; then
         echo "wmm_enabled=1" >> "$CONFDIR/hostapd.conf"
     fi
 
@@ -2132,10 +2232,8 @@ start_dnsmasq() {
 }
 
 check_rfkill_unblock_wifi() {
-    local PHY
     if which rfkill > /dev/null 2>&1 ; then
-        PHY=$(get_interface_phy_device "${SUBNET_IFACE}")
+        rfkill unblock $(rfkill | grep "$PHY" | awk '{print $1}') >/dev/null 2>&1
-        [[ -n $PHY ]] && rfkill unblock $(rfkill | grep "$PHY" | awk '{print $1}') >/dev/null 2>&1
     fi
 }
 
@@ -2217,7 +2315,7 @@ fi
 
 # judge channel availability after changing country code
 if [[ $WIFI_IFACE ]] ; then
-    can_transmit_to_channel "${AP_IFACE}" ${CHANNEL} || die "Your adapter can not transmit to channel ${CHANNEL}, frequency band ${FREQ_BAND}GHz."
+    can_transmit_to_channel "${AP_IFACE}" ${CHANNEL} || die "Your adapter can not transmit to channel ${CHANNEL}, frequency band ${FREQ_BAND}GHz. (Tips: 1. Check usable channels: 'iw phy $PHY info'.  2. Check country code then check again.  )"
 fi
 
 [[ $WIFI_IFACE ]] && write_hostapd_conf