add getter for IPv4 and IPv6 addresses

lib/include/srslte/interfaces/ue_interfaces.h

@@ -140,6 +140,8 @@ public:
   virtual void      write_pdu(uint32_t lcid, srslte::byte_buffer_t *pdu) = 0;
   virtual uint32_t  get_ul_count() = 0;
   virtual bool      get_k_asme(uint8_t *k_asme_, uint32_t n) = 0;
+  virtual uint32_t  get_ipv4_addr() = 0;
+  virtual bool      get_ipv6_addr(uint8_t *ipv6_addr) = 0;
 };
 
 // NAS interface for UE

srsue/hdr/upper/nas.h

@@ -88,6 +88,8 @@ public:
   uint32_t get_ul_count();
   bool is_attached();
   bool get_k_asme(uint8_t *k_asme_, uint32_t n);
+  uint32_t get_ipv4_addr();
+  bool get_ipv6_addr(uint8_t *ipv6_addr);
 
   // UE interface
   bool attach_request();

srsue/src/upper/nas.cc

@@ -54,6 +54,7 @@ nas::nas()
   ctxt.integ_algo = INTEGRITY_ALGORITHM_ID_EIA0;
   plmn_is_selected = false;
   chap_id = 0;
+  memset(ipv6_if_id, 0, sizeof(ipv6_if_id));
 }
 
 void nas::init(usim_interface_nas *usim_,
@@ -411,6 +412,21 @@ bool nas::get_k_asme(uint8_t *k_asme_, uint32_t n) {
   return true;
 }
 
+uint32_t nas::get_ipv4_addr()
+{
+  return ip_addr;
+}
+
+bool nas::get_ipv6_addr(uint8_t *ipv6_addr)
+{
+  uint8_t null_addr[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+  if (memcmp(ipv6_addr, null_addr, 8) != 0) {
+    memcpy(ipv6_addr, ipv6_if_id, 8);
+    return true;
+  }
+  return false;
+}
+
 /*******************************************************************************
   PCAP
 *******************************************************************************/