wifi: Implement GCR Group Address element

src/wifi/CMakeLists.txt

@@ -46,6 +46,7 @@ set(source_files
     model/fcfs-wifi-queue-scheduler.cc
     model/frame-capture-model.cc
     model/frame-exchange-manager.cc
+    model/gcr-group-address.cc
     model/he/constant-obss-pd-algorithm.cc
     model/he/he-6ghz-band-capabilities.cc
     model/he/he-capabilities.cc
@@ -209,6 +210,7 @@ set(header_files
     model/fcfs-wifi-queue-scheduler.h
     model/frame-capture-model.h
     model/frame-exchange-manager.h
+    model/gcr-group-address.h
     model/he/constant-obss-pd-algorithm.h
     model/he/he-6ghz-band-capabilities.h
     model/he/he-capabilities.h

src/wifi/model/gcr-group-address.cc

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2023 Universita' degli Studi di Napoli Federico II
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ * Author: Stefano Avallone <stavallo@unina.it>
+ */
+
+#include "gcr-group-address.h"
+
+#include "ns3/address-utils.h"
+
+namespace ns3
+{
+
+void
+GcrGroupAddress::Print(std::ostream& os) const
+{
+    os << "gcrGroupAddress=" << m_gcrGroupAddress;
+}
+
+WifiInformationElementId
+GcrGroupAddress::ElementId() const
+{
+    return IE_GCR_GROUP_ADDRESS;
+}
+
+uint16_t
+GcrGroupAddress::GetInformationFieldSize() const
+{
+    return 6; // GCR Group Address field
+}
+
+void
+GcrGroupAddress::SerializeInformationField(Buffer::Iterator start) const
+{
+    WriteTo(start, m_gcrGroupAddress);
+}
+
+uint16_t
+GcrGroupAddress::DeserializeInformationField(Buffer::Iterator start, uint16_t length)
+{
+    ReadFrom(start, m_gcrGroupAddress);
+    return 6;
+}
+
+} // namespace ns3

src/wifi/model/gcr-group-address.h

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2023 Universita' degli Studi di Napoli Federico II
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ * Author: Stefano Avallone <stavallo@unina.it>
+ */
+
+#ifndef GCR_GROUP_ADDRESS_H
+#define GCR_GROUP_ADDRESS_H
+
+#include "wifi-information-element.h"
+
+#include "ns3/mac48-address.h"
+
+namespace ns3
+{
+
+/**
+ * @ingroup wifi
+ *
+ * The IEEE 802.11 GCR Group Address Element (Sec. 9.4.2.125 of 802.11-2020)
+ */
+class GcrGroupAddress : public WifiInformationElement
+{
+  public:
+    GcrGroupAddress() = default;
+
+    WifiInformationElementId ElementId() const override;
+    void Print(std::ostream& os) const override;
+
+    Mac48Address m_gcrGroupAddress; //!< GCR Group Address field
+
+  private:
+    uint16_t GetInformationFieldSize() const override;
+    void SerializeInformationField(Buffer::Iterator start) const override;
+    uint16_t DeserializeInformationField(Buffer::Iterator start, uint16_t length) override;
+};
+
+} // namespace ns3
+
+#endif /* GCR_GROUP_ADDRESS_H */

src/wifi/model/wifi-information-element.h

@@ -198,7 +198,14 @@ typedef uint8_t WifiInformationElementId;
 #define IE_QUIET_PERIOD_RESPONSE ((WifiInformationElementId)177)
 // 178 to 181 are reserved
 #define IE_ECPAC_POLICY ((WifiInformationElementId)182)
-// 183 to 190 are reserved
+#define IE_CLUSTER_TIME_OFFSET ((WifiInformationElementId)183)
+#define IE_INTRA_ACCESS_CATEGORY_PRIORITY ((WifiInformationElementId)184)
+#define IE_SCS_DESCRIPTOR ((WifiInformationElementId)185)
+#define IE_QLOAD_REPORT ((WifiInformationElementId)186)
+#define IE_HCCA_TXOP_UPDATE_COUNT ((WifiInformationElementId)187)
+#define IE_HIGHER_LAYER_STREAM_ID ((WifiInformationElementId)188)
+#define IE_GCR_GROUP_ADDRESS ((WifiInformationElementId)189)
+#define IE_ANTENNA_SECTOR_ID_PATTERN ((WifiInformationElementId)190)
 #define IE_VHT_CAPABILITIES ((WifiInformationElementId)191)
 #define IE_VHT_OPERATION ((WifiInformationElementId)192)
 #define IE_EXTENDED_BSS_LOAD ((WifiInformationElementId)193)