PiPedal 1.2.33 initial commit

src/WifiChannelSelectors.cpp

@@ -0,0 +1,139 @@
+// Copyright (c) 2022 Robin Davies
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+// #include <unistd.h>
+// #include <fcntl.h>
+// #include <string>
+// #include <net/if.h>
+// #include <netlink/netlink.h>
+// #include <netlink/genl/genl.h>
+// #include <netlink/genl/family.h>
+// #include <netlink/genl/ctrl.h>  
+// #include <netlink/msg.h>
+// #include <netlink/attr.h>
+// #include <linux/nl80211.h>
+
+// #include <linux/nl80211.h>
+#include "PiPedalException.hpp"
+#include "WifiChannelSelectors.hpp"
+#include "Lv2Log.hpp"
+#include <set>
+
+#include "RegDb.hpp"
+
+#include "ChannelInfo.hpp"
+
+using namespace pipedal;
+
+
+
+// static bool firstTime = true;
+// static std::unique_ptr<RegDb> g_regDb;
+
+std::vector<WifiChannelSelector> pipedal::getWifiChannelSelectors(const char*countryIso3661, bool forCommandline)
+{
+    // Use the wifi physical device to get a list of channels
+    // that the hardware supports.
+    // The override the hardware's regulation flags using regulation.bin
+    // database info for the selected country code.
+    // If the regulation.bin database doesn't have a matching record,
+    // just pass the data that the wifi reported.
+
+    // regdb is broken on bookworm.
+    // if (firstTime) {
+    //     firstTime = false;
+    //     try {
+    //         g_regDb = std::make_unique<RegDb>();
+    //     } catch (const std::exception& e)
+    //     {
+    //         std::stringstream s;
+    //         s << "Failed to open the Wi-Fi regulatory.bin database. " << e.what();
+    //         Lv2Log::error(s.str());
+    //     }
+    // }
+    std::vector<WifiChannelSelector> result;
+
+
+    if (forCommandline) {
+        WifiChannelSelector autoSelect;
+        autoSelect.channelId_ = "0";
+        autoSelect.channelName_ = "0 Select automatically";
+        result.push_back(autoSelect);
+    } else {
+        WifiChannelSelector autoSelect;
+        autoSelect.channelId_ = "0";
+        autoSelect.channelName_ = "Select automatically";
+        result.push_back(autoSelect);
+    }
+    WifiInfo wifiInfo = getWifiInfo(countryIso3661);
+
+    std::set<int32_t> visitedChannels;
+    for (auto &channel: wifiInfo.channels) {
+        if ((!channel.disabled) && (!channel.radarDetection))
+        {
+            if (channel.no20MHz)
+            {
+                continue;
+            }
+            // ignore duplicates
+            if (visitedChannels.contains(channel.channelNumber))
+            {
+                continue;
+            }
+            visitedChannels.insert(channel.channelNumber);
+            WifiChannelSelector ch;
+            std::stringstream s;
+            s << channel.channelNumber;
+            ch.channelId_ = s.str();
+
+            std::stringstream t;
+            t << channel.channelNumber;
+            switch (channel.hardwareMode)
+            {
+                case WifiMode::IEEE80211G:
+                    t << " (2.4GHz)";
+                    break;
+                case WifiMode::IEEE80211A:
+                case WifiMode::IEEE80211B:
+                    t << " (5GHz)";
+                    break;
+                default: 
+                    continue;
+            }
+            if (channel.indoorOnly) {
+                t << " Indoors only";
+            } 
+            if (channel.outdoorsOnly) {
+                t << " Outdoors only";
+            }
+            ch.channelName_ = t.str();
+            result.push_back(ch);
+        }
+    }
+    return result;
+}
+
+
+JSON_MAP_BEGIN(WifiChannelSelector)
+    JSON_MAP_REFERENCE(WifiChannelSelector,channelId)
+    JSON_MAP_REFERENCE(WifiChannelSelector,channelName)
+JSON_MAP_END()
+
+