network: add bssid format replacement

include/modules/network.hpp

@@ -40,6 +40,7 @@ class Network : public ALabel {
   void parseEssid(struct nlattr**);
   void parseSignal(struct nlattr**);
   void parseFreq(struct nlattr**);
+  void parseBssid(struct nlattr**);
   bool associatedOrJoined(struct nlattr**);
   bool checkInterface(std::string name);
   auto getInfo() -> void;
@@ -69,6 +70,7 @@ class Network : public ALabel {
 
   std::string state_;
   std::string essid_;
+  std::string bssid_;
   bool carrier_;
   std::string ifname_;
   std::string ipaddr_;

man/waybar-network.5.scd

@@ -156,6 +156,8 @@ Addressed by *network*
 
 *{essid}*: Name (SSID) of the wireless network.
 
+*{bssid}*: MAC address (BSSID) of the wireless access point.
+
 *{signalStrength}*: Signal strength of the wireless network.
 
 *{signaldBm}*: Signal strength of the wireless network in dBm.

src/modules/network.cpp

@@ -332,8 +332,8 @@ auto waybar::modules::Network::update() -> void {
   getState(signal_strength_);
 
   auto text = fmt::format(
-      fmt::runtime(format_), fmt::arg("essid", essid_), fmt::arg("signaldBm", signal_strength_dbm_),
+      fmt::runtime(format_), fmt::arg("essid", essid_), fmt::arg("bssid", bssid_),
-      fmt::arg("signalStrength", signal_strength_),
+      fmt::arg("signaldBm", signal_strength_dbm_), fmt::arg("signalStrength", signal_strength_),
       fmt::arg("signalStrengthApp", signal_strength_app_), fmt::arg("ifname", ifname_),
       fmt::arg("netmask", netmask_), fmt::arg("ipaddr", ipaddr_), fmt::arg("gwaddr", gwaddr_),
       fmt::arg("cidr", cidr_), fmt::arg("frequency", fmt::format("{:.1f}", frequency_)),
@@ -364,7 +364,7 @@ auto waybar::modules::Network::update() -> void {
     }
     if (!tooltip_format.empty()) {
       auto tooltip_text = fmt::format(
-          fmt::runtime(tooltip_format), fmt::arg("essid", essid_),
+          fmt::runtime(tooltip_format), fmt::arg("essid", essid_), fmt::arg("bssid", bssid_),
           fmt::arg("signaldBm", signal_strength_dbm_), fmt::arg("signalStrength", signal_strength_),
           fmt::arg("signalStrengthApp", signal_strength_app_), fmt::arg("ifname", ifname_),
           fmt::arg("netmask", netmask_), fmt::arg("ipaddr", ipaddr_), fmt::arg("gwaddr", gwaddr_),
@@ -407,6 +407,7 @@ void waybar::modules::Network::clearIface() {
   ifid_ = -1;
   ifname_.clear();
   essid_.clear();
+  bssid_.clear();
   ipaddr_.clear();
   gwaddr_.clear();
   netmask_.clear();
@@ -481,6 +482,7 @@ int waybar::modules::Network::handleEvents(struct nl_msg *msg, void *data) {
             } else {
               // clear state related to WiFi connection
               net->essid_.clear();
+              net->bssid_.clear();
               net->signal_strength_dbm_ = 0;
               net->signal_strength_ = 0;
               net->signal_strength_app_.clear();
@@ -772,6 +774,7 @@ int waybar::modules::Network::handleScan(struct nl_msg *msg, void *data) {
   net->parseEssid(bss);
   net->parseSignal(bss);
   net->parseFreq(bss);
+  net->parseBssid(bss);
   return NL_OK;
 }
 
@@ -837,6 +840,20 @@ void waybar::modules::Network::parseFreq(struct nlattr **bss) {
   }
 }
 
+void waybar::modules::Network::parseBssid(struct nlattr **bss) {
+  if (bss[NL80211_BSS_BSSID] != nullptr) {
+    auto bssid = static_cast<uint8_t *>(nla_data(bss[NL80211_BSS_BSSID]));
+    auto bssid_len = nla_len(bss[NL80211_BSS_BSSID]);
+    if (bssid_len == 6) {
+      bssid_ = std::format(
+        "{:x}:{:x}:{:x}:{:x}:{:x}:{:x}",
+        bssid[0], bssid[1], bssid[2],
+        bssid[3], bssid[4], bssid[5]
+      );
+    }
+  }
+}
+
 bool waybar::modules::Network::associatedOrJoined(struct nlattr **bss) {
   if (bss[NL80211_BSS_STATUS] == nullptr) {
     return false;