Fixed last compilation issues.

lib/src/upper/gtpu.cc

@@ -38,15 +38,15 @@ namespace srslte {
 bool gtpu_write_header(gtpu_header_t *header, srslte::byte_buffer_t *pdu, srslte::log *gtpu_log)
 {
 
-  if(header->flags.version != GTPU_VERSION_V1) {
+  if(header->gtpu_flags.flag_bits.version != GTPU_VERSION_V1) {
     gtpu_log->error("gtpu_write_header - Unhandled GTP-U Version.\n");
     return false;
   }
-  if(header->flags.protocol_type != GTP_PROTO) {
+  if(header->gtpu_flags.flag_bits.protocol_type != GTP_PROTO) {
     gtpu_log->error("gtpu_write_header - Unhandled Protocol Type.\n");
     return false;
   }
-  if(header->flags.ext_header) {
+  if(header->gtpu_flags.flag_bits.ext_header) {
     gtpu_log->error("gtpu_write_header - Unhandled Header Extensions.\n");
     return false;
   }
@@ -64,7 +64,7 @@ bool gtpu_write_header(gtpu_header_t *header, srslte::byte_buffer_t *pdu, srslte
 
   uint8_t *ptr = pdu->msg;
 
-  *ptr = header->flags;
+  *ptr = header->gtpu_flags.flags;
   ptr++;
   *ptr = header->message_type;
   ptr++;
@@ -79,7 +79,7 @@ bool gtpu_read_header(srslte::byte_buffer_t *pdu, gtpu_header_t *header, srslte:
 {
   uint8_t *ptr  = pdu->msg;
 
-  header->flags  = *ptr;
+  header->gtpu_flags.flags  = *ptr;
   ptr++;
   header->message_type      = *ptr;
   ptr++;

srsenb/src/upper/gtpu.cc

@@ -123,8 +123,8 @@ void gtpu::write_pdu(uint16_t rnti, uint32_t lcid, srslte::byte_buffer_t* pdu)
   gtpu_log->info_hex(pdu->msg, pdu->N_bytes, "TX PDU, RNTI: 0x%x, LCID: %d, n_bytes=%d", rnti, lcid, pdu->N_bytes);
   gtpu_header_t header;
   bzero(&header,sizeof(header));
-  header.flags.version        = GTPU_VERSION_V1;
-  header.flags.protocol_type  = GTP_PROTO;
+  header.gtpu_flags.flag_bits.version        = GTPU_VERSION_V1;
+  header.gtpu_flags.flag_bits.protocol_type  = GTP_PROTO;
   header.message_type = GTPU_MSG_DATA_PDU;
   header.length       = pdu->N_bytes;
   header.teid         = rnti_bearers[rnti].teids_out[lcid];
@@ -282,25 +282,27 @@ void gtpu::echo_response(in_addr_t addr, in_port_t port, uint16_t seq)
   gtpu_header_t header;
   bzero(&header, sizeof(header));
 
+  srslte::byte_buffer_t *pdu = pool_allocate;
+
   //flags
-  header.flags.version = GTPU_VERSION_V1;
-  header.flags.protocol_type = GTP_PROTO;
-  header.flags.sequence = 1;
-
-  uint8_t resp[12];
-  bzero(resp, 12);
-  resp[0] = 0x32;                 //flags
-  resp[1] = 0x02;                 //type
-  uint16_to_uint8(4,   &resp[2]); //length
-  uint32_to_uint8(0,   &resp[4]); //TEID
-  uint16_to_uint8(seq, &resp[8]); //seq
+  header.gtpu_flags.flag_bits.version = GTPU_VERSION_V1;
+  header.gtpu_flags.flag_bits.protocol_type = GTP_PROTO;
+  header.gtpu_flags.flag_bits.sequence = 1;
+
+  header.message_type = GTPU_MSG_ECHO_RESPONSE;
+  header.teid = 0;
+  header.length = 4;
+  header.seq_number = seq;
+
+  gtpu_write_header(&header,pdu,gtpu_log);
 
   struct sockaddr_in servaddr;
   servaddr.sin_family      = AF_INET;
   servaddr.sin_addr.s_addr = addr;
   servaddr.sin_port        = port;
 
-  sendto(fd, resp, 12, MSG_EOR, (struct sockaddr*)&servaddr, sizeof(struct sockaddr_in));
+  sendto(fd, pdu->msg, 12, MSG_EOR, (struct sockaddr*)&servaddr, sizeof(struct sockaddr_in));
+  pool->deallocate(pdu);
 }
 
 /****************************************************************************

srsepc/src/mbms-gw/mbms-gw.cc

@@ -288,8 +288,8 @@ mbms_gw::handle_sgi_md_pdu(srslte::byte_buffer_t *msg)
   bzero(&header, sizeof(srslte::gtpu_header_t));
 
   //Setup GTP-U header
-  header.flags.version = GTPU_VERSION_V1;
-  header.flags.protocol_type = GTP_PROTO;
+  header.gtpu_flags.flag_bits.version = GTPU_VERSION_V1;
+  header.gtpu_flags.flag_bits.protocol_type = GTP_PROTO;
   header.message_type = GTPU_MSG_DATA_PDU;
   header.length       = msg->N_bytes;
   header.teid         = 0xAAAA; //FIXME Harcoded TEID for now

srsepc/src/spgw/spgw.cc

@@ -330,28 +330,24 @@ spgw::handle_sgi_pdu(srslte::byte_buffer_t *msg)
   srslte::gtpc_f_teid_ie enb_fteid;
 
   struct iphdr *iph = (struct iphdr *) msg->msg;
-  if(iph->version != 4)
-  {
+  if (iph->version != 4) {
     m_spgw_log->warning("IPv6 not supported yet.\n");
     return;
   }
-  if(iph->tot_len < 20)
-  {
+  if (iph->tot_len < 20) {
     m_spgw_log->warning("Invalid IP header length.\n");
     return;
   }
 
   pthread_mutex_lock(&m_mutex);
   gtp_fteid_it = m_ip_to_teid.find(iph->daddr);
-  if(gtp_fteid_it != m_ip_to_teid.end())
-  {
+  if (gtp_fteid_it != m_ip_to_teid.end()) {
     ip_found = true;
     enb_fteid = gtp_fteid_it->second;
   }
   pthread_mutex_unlock(&m_mutex);
 
-  if(ip_found == false)
-  {
+  if (ip_found == false) {
     //m_spgw_log->console("IP Packet is not for any UE\n");
     return;
   }
@@ -364,8 +360,8 @@ spgw::handle_sgi_pdu(srslte::byte_buffer_t *msg)
   //Setup GTP-U header
   srslte::gtpu_header_t header;
   bzero(&header,sizeof(srslte::gtpu_header_t));
-  header.flags.version        = GTPU_VERSION_V1;
-  header.flags.protocol_type  = GTP_PROTO;
+  header.gtpu_flags.flag_bits.version        = GTPU_VERSION_V1;
+  header.gtpu_flags.flag_bits.protocol_type  = GTP_PROTO;
   header.message_type                        = GTPU_MSG_DATA_PDU;
   header.length       = msg->N_bytes;
   header.teid         = enb_fteid.teid;