don't network repeat AMBT PDUs; ensure AMBTs aren't processed if control processing is disabled;

src/p25/packet/Data.cpp

@@ -236,7 +236,11 @@ bool Data::process(uint8_t* data, uint32_t len)
                             }
                         }
 
-                        writeNetwork(m_rfDataBlockCnt, m_pduUserData + dataOffset, (m_rfDataHeader.getFormat() == PDU_FMT_CONFIRMED) ? P25_PDU_CONFIRMED_DATA_LENGTH_BYTES : P25_PDU_UNCONFIRMED_LENGTH_BYTES);
+                        // only repeat data blocks if we're not an AMBT
+                        if (m_rfDataHeader.getFormat() != PDU_FMT_AMBT) {
+                            writeNetwork(m_rfDataBlockCnt, m_pduUserData + dataOffset, (m_rfDataHeader.getFormat() == PDU_FMT_CONFIRMED) ? P25_PDU_CONFIRMED_DATA_LENGTH_BYTES : P25_PDU_UNCONFIRMED_LENGTH_BYTES);
+                        }
+
                         m_rfDataBlockCnt++;
                     }
                     else {

src/p25/packet/Trunk.cpp

@@ -909,6 +909,10 @@ bool Trunk::processNetwork(uint8_t* data, uint32_t len, lc::LC& control, data::L
 /// <param name="dataBlock"></param>
 bool Trunk::processMBT(DataHeader dataHeader, DataBlock* blocks)
 {
+    if (!m_p25->m_control) {
+        return false;
+    }
+
     uint8_t data[1U];
     ::memset(data, 0x00U, 1U);