mirror of https://github.com/aredn/aredn.git
170 lines
4.3 KiB
Perl
170 lines
4.3 KiB
Perl
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use perlfunc;
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#############################
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#
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# @returns all channels, or specific band lis
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sub rf_channel_map
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{
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%channellist = (
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'900' => {
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4 => "(907)",
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5 => "(912)",
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6 => "(917)",
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7 => "(922)",
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},
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'2400' => {
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1 => "1 (2412)",
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2 => "2 (2417)",
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3 => "3 (2422)",
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4 => "4 (2427)",
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5 => "5 (2432)",
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6 => "6 (2437)",
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7 => "7 (2442)",
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8 => "8 (2447)",
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9 => "9 (2452)",
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10 => "10 (2457)",
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11 => "11 (2462)",
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},
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'5500' => {
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37 => "36 (5190)",
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40 => "40 (5200)",
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44 => "44 (5220)",
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48 => "48 (5240)",
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52 => "52 (5260)",
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56 => "56 (5280)",
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60 => "60 (5300)",
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64 => "64 (5320)",
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100 => "100 (5500)",
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104 => "104 (5520)",
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108 => "108 (5540)",
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112 => "112 (5560)",
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116 => "116 (5580)",
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120 => "120 (5600)",
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124 => "124 (5620)",
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128 => "128 (5640)",
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132 => "132 (5660)",
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136 => "136 (5680)",
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140 => "140 (5700)",
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149 => "149 (5745)",
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153 => "153 (5765)",
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157 => "157 (5785)",
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161 => "161 (5805)",
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165 => "165 (5825)",
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},
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# 5800 UBNT US Band
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# Limiting to US speced channels until the hardware can be tested
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# lower into the spectrum.
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'5800ubntus' => {
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149 => "149 (5745)",
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153 => "153 (5765)",
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157 => "157 (5785)",
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161 => "161 (5805)",
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165 => "165 (5825)",
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},
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);
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my($reqband) = @_;
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if ( defined($reqband) ){
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if ( exists($channellist{$reqband}) ){
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return $channellist{$reqband};
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}
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else
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{
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return -1;
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}
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}
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else {
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return $channellist;
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}
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}
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sub is_channel_valid
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{
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my ($channel) = @_;
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if ( !defined($channel) ) {
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return -1;
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}
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$boardinfo=hardware_info();
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#We know about the band so lets use it
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if ( exists($boardinfo->{'rfband'}))
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{
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$validchannels=rf_channel_map($boardinfo->{'rfband'});
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if ( exists($validchannels->{$channel}) )
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{
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return 1;
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} else {
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return 0;
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}
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}
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# We don't have the device band in the data file so lets fall back to checking manually
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else {
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my $channelok=0;
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foreach (`iwinfo wlan0 freqlist`)
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{
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next unless /Channel $channel/;
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next if /\[restricted\]/;
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$channelok=1;
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}
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return $channelok;
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}
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}
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sub rf_channels_list
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{
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$boardinfo=hardware_info();
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#We know about the band so lets use it
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if ( exists($boardinfo->{'rfband'}))
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{
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if (rf_channel_map($boardinfo->{'rfband'}) != -1 )
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{
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return rf_channel_map($boardinfo->{'rfband'});
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}
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}
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else
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{
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my %channels = ();
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foreach (`iwinfo wlan0 freqlist` )
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{
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next unless /([0-9]+.[0-9]+) GHz \(Channel ([0-9]+)\)/;
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next if /\[restricted\]/;
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my $channelnum = $2;
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my $channelfreq = $1;
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$channelnum =~s/^0+//g;
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$channels->{$channelnum} = "$channelfreq GHZ" ;
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}
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return $channels;
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}
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}
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sub is_wifi_chanbw_valid
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{
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my ($wifi_chanbw,$wifi_ssid) = @_;
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my $boardinfo=hardware_info();
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if ( ( exists($boardinfo->{'rfband'}) ) && ( $boardinfo->{'rfband'} == "2400" ) && ( $wifi_chanbw != 20 ) )
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{
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if ( (( length $wifi_ssid >= 33 ) || ( length $wifi_ssid == 0 )) || ( $wifi_ssid =~ /BroadBandHamnet-v.*/i ))
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{
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# 2.4ghz and default ssid not 20mhz wide -- Invalid chan_bw
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return 0;
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} else {
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# chan_bw valid
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return 1;
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}
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}
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# Not 2.4ghz or device is unknown, trust the user submission.
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return 1;
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}
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#weird uhttpd/busybox error requires a 1 at the end of this file
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1
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