wifi: move AddWifiMacTrailer to wifi-utils

src/wifi/model/edca-txop-n.cc

@@ -145,9 +145,9 @@ uint16_t EdcaTxopN::PeekNextSequenceNumberFor (WifiMacHeader *hdr)
 }
 
 Ptr<const Packet>
-EdcaTxopN::PeekNextRetransmitPacket (WifiMacHeader &header,Mac48Address recipient, uint8_t tid, Time *timestamp)
+EdcaTxopN::PeekNextRetransmitPacket (WifiMacHeader &header, Mac48Address recipient, uint8_t tid, Time *timestamp)
 {
-  return m_baManager->PeekNextPacketByTidAndAddress (header,recipient,tid, timestamp);
+  return m_baManager->PeekNextPacketByTidAndAddress (header, recipient, tid, timestamp);
 }
 
 void

src/wifi/model/mac-low.cc

@@ -2810,11 +2810,4 @@ MacLow::PerformMsduAggregation (Ptr<const Packet> packet, WifiMacHeader *hdr, Ti
     }
 }
 
-void
-MacLow::AddWifiMacTrailer (Ptr<Packet> packet)
-{
-  WifiMacTrailer fcs;
-  packet->AddTrailer (fcs);
-}
-
 } //namespace ns3

src/wifi/model/mac-low.h

@@ -419,12 +419,6 @@ private:
    * \return the total packet size
    */
   static uint32_t GetSize (Ptr<const Packet> packet, const WifiMacHeader *hdr, bool isAmpdu);
-  /**
-   * Add FCS trailer to a packet.
-   *
-   * \param packet
-   */
-  static void AddWifiMacTrailer (Ptr<Packet> packet);
   /**
    * Forward the packet down to WifiPhy for transmission. This is called for the entire A-MPDu when MPDU aggregation is used.
    *

src/wifi/model/wifi-utils.cc

@@ -128,4 +128,11 @@ IsInWindow (uint16_t seq, uint16_t winstart, uint16_t winsize)
   return ((seq - winstart + 4096) % 4096) < winsize;
 }
 
+void
+AddWifiMacTrailer (Ptr<Packet> packet)
+{
+  WifiMacTrailer fcs;
+  packet->AddTrailer (fcs);
+}
+
 } //namespace ns3

src/wifi/model/wifi-utils.h

@@ -25,6 +25,8 @@
 #include "ctrl-headers.h"
 #include "ns3/nstime.h"
 #include "ns3/uinteger.h"
+#include "ns3/packet.h"
+#include "wifi-mac-trailer.h"
 
 namespace ns3 {
 
@@ -112,6 +114,12 @@ uint32_t GetCtsSize (void);
  * This method checks if the MPDU's sequence number is inside the scoreboard boundaries or not
  */
 bool IsInWindow (uint16_t seq, uint16_t winstart, uint16_t winsize);
+/**
+ * Add FCS trailer to a packet.
+ *
+ * \param packet
+ */
+void AddWifiMacTrailer (Ptr<Packet> packet);
 
 } // namespace ns3