Adjusted UDP port ids for multiple UE connection with proxy

executables/nr-ue.c

@@ -129,8 +129,8 @@ void init_nr_ue_vars(PHY_VARS_NR_UE *ue,
 void init_nrUE_standalone_thread(int ue_idx)
 {
   const char *standalone_addr = "127.0.0.1";
-  int standalone_tx_port = 3611 + (ue_idx)*2;
-  int standalone_rx_port = 3612 + (ue_idx)*2;
+  int standalone_tx_port = 3611 + ue_idx * 2;
+  int standalone_rx_port = 3612 + ue_idx * 2;
   nrue_init_standalone_socket(standalone_addr, standalone_tx_port, standalone_rx_port);
 
   pthread_t thread;
@@ -252,6 +252,7 @@ static void *NRUE_phy_stub_standalone_pnf_task(void *arg)
       }
     }
   }
+  return NULL;
 }
 
 

executables/nr-uesoftmodem.c

@@ -456,7 +456,7 @@ void init_openair0(void) {
   }
 }
 
-void init_pdcp(void) {
+void init_pdcp(int ue_id) {
   uint32_t pdcp_initmask = (!IS_SOFTMODEM_NOS1) ? LINK_ENB_PDCP_TO_GTPV1U_BIT : (LINK_ENB_PDCP_TO_GTPV1U_BIT | PDCP_USE_NETLINK_BIT | LINK_ENB_PDCP_TO_IP_DRIVER_BIT);
 
   /*if (IS_SOFTMODEM_BASICSIM || IS_SOFTMODEM_RFSIM || (nfapi_getmode()==NFAPI_UE_STUB_PNF)) {
@@ -471,7 +471,7 @@ void init_pdcp(void) {
   }
   pdcp_layer_init();
   nr_DRB_preconfiguration();*/
-  nr_pdcp_module_init(pdcp_initmask, 0);
+  nr_pdcp_module_init(pdcp_initmask, ue_id);
   pdcp_set_rlc_data_req_func((send_rlc_data_req_func_t) rlc_data_req);
   pdcp_set_pdcp_data_ind_func((pdcp_data_ind_func_t) pdcp_data_ind);
   LOG_I(PDCP, "Before getting out from init_pdcp() \n");
@@ -525,8 +525,23 @@ int main( int argc, char **argv ) {
   LOG_I(HW, "Version: %s\n", PACKAGE_VERSION);
 
   init_NR_UE(1,rrc_config_path);
+
+  int mode_offset = get_softmodem_params()->nsa ? NUMBER_OF_UE_MAX : 0;
+  int node_number = get_softmodem_params()->node_number;
+  ue_id_g = (node_number == 0) ? 0 : node_number - 2;
+  AssertFatal(ue_id_g >= 0, "UE id is expected to be nonnegative.\n");
+
   if(IS_SOFTMODEM_NOS1)
-	  init_pdcp();
+  {
+    if(node_number == 0)
+    {
+      init_pdcp(0);
+    }
+    else
+    {
+      init_pdcp(mode_offset + node_number - 1);
+    }
+  }
 
   NB_UE_INST=1;
   NB_INST=1;

executables/softmodem-common.h

@@ -148,7 +148,7 @@ extern "C"
     {"use-256qam-table",     CONFIG_HLP_256QAM,       PARAMFLAG_BOOL, iptr:&USE_256QAM_TABLE,             defintval:0,           TYPE_INT,    0},                     \
     {"nfapi",                CONFIG_HLP_NFAPI,        0,              u8ptr:&nfapi_mode,                  defintval:0,           TYPE_UINT8,  0},                     \
     {"nsa",                  CONFIG_HLP_NSA,          PARAMFLAG_BOOL, iptr:&NSA,                          defintval:0,           TYPE_INT,    0},                     \
-    {"node-number",          NULL,                    0,              u16ptr:&NODE_NUMBER,                defuintval:2,          TYPE_UINT16, 0},                     \
+    {"node-number",          NULL,                    0,              u16ptr:&NODE_NUMBER,                defuintval:0,          TYPE_UINT16, 0},                     \
   }
 
 #define CONFIG_HLP_NSA           "Enable NSA mode \n"

openair2/LAYER2/NR_MAC_gNB/gNB_scheduler_ulsch.c

@@ -530,7 +530,7 @@ void nr_rx_sdu(const module_id_t gnb_mod_idP,
 
         if(ra->cfra) {
 
-          LOG_I(NR_MAC, "(ue %i, rnti 0x%04x) CFRA procedure succeeded!\n", UE_id, ra->rnti);
+          LOG_A(NR_MAC, "(ue %i, rnti 0x%04x) CFRA procedure succeeded!\n", UE_id, ra->rnti);
           //nr_mac_remove_ra_rnti(gnb_mod_idP, ra->rnti);
           nr_clear_ra_proc(gnb_mod_idP, CC_idP, frameP);
           UE_info->active[UE_id] = true;

openair2/RRC/LTE/rrc_UE.c

@@ -98,6 +98,7 @@ static int from_nr_ue_fd = -1;
 static int to_nr_ue_fd = -1;
 int slrb_id;
 int send_ue_information = 0;
+extern int ue_id_g;
 
 // for malloc_clear
 #include "PHY/defs_UE.h"
@@ -6515,7 +6516,7 @@ void nsa_sendmsg_to_nrue(const void *message, size_t msg_len, Rrc_Msg_Type_t msg
     struct sockaddr_in sa =
     {
         .sin_family = AF_INET,
-        .sin_port = htons(6008),
+        .sin_port = htons(6008 + ue_id_g * 2),
     };
     int sent = sendto(to_nr_ue_fd, &n_msg, to_send, 0,
                       (struct sockaddr *)&sa, sizeof(sa));
@@ -6532,12 +6533,12 @@ void nsa_sendmsg_to_nrue(const void *message, size_t msg_len, Rrc_Msg_Type_t msg
     LOG_I(RRC, "Sent a %d message to the nrUE (%d bytes) \n", msg_type, sent);
 }
 
-void init_connections_with_nr_ue(void)
+void init_connections_with_nr_ue()
 {
     struct sockaddr_in sa =
     {
         .sin_family = AF_INET,
-        .sin_port = htons(6007),
+        .sin_port = htons(6007 + ue_id_g * 2),
     };
     AssertFatal(from_nr_ue_fd == -1, "from_nr_ue_fd was assigned already");
     from_nr_ue_fd = socket(AF_INET, SOCK_DGRAM, 0);

openair2/RRC/NR_UE/rrc_UE.c

@@ -133,7 +133,7 @@ uint8_t first_rrcreconfigurationcomplete = 0;
 static const char nsa_ipaddr[] = "127.0.0.1";
 static int from_lte_ue_fd = -1;
 static int to_lte_ue_fd = -1;
-uint16_t ue_id_g;
+extern uint16_t ue_id_g;
 
 static Rrc_State_NR_t nr_rrc_get_state (module_id_t ue_mod_idP) {
   return NR_UE_rrc_inst[ue_mod_idP].nrRrcState;
@@ -2909,7 +2909,7 @@ void nsa_sendmsg_to_lte_ue(const void *message, size_t msg_len, MessagesIds msg_
     struct sockaddr_in sa =
     {
         .sin_family = AF_INET,
-        .sin_port = htons(6007),
+        .sin_port = htons(6007 + ue_id_g * 2),
     };
     int sent = sendto(from_lte_ue_fd, &n_msg, to_send, 0,
                       (struct sockaddr *)&sa, sizeof(sa));
@@ -2931,7 +2931,7 @@ void init_connections_with_lte_ue(void)
     struct sockaddr_in sa =
     {
         .sin_family = AF_INET,
-        .sin_port = htons(6008),
+        .sin_port = htons(6008 + ue_id_g * 2),
     };
     AssertFatal(from_lte_ue_fd == -1, "from_lte_ue_fd was assigned already");
     from_lte_ue_fd = socket(AF_INET, SOCK_DGRAM, 0);
@@ -2973,9 +2973,9 @@ static void start_oai_nrue_threads()
       LOG_E(MAC, "sem_init() error\n");
       abort();
     }
-    int node_num = get_softmodem_params()->node_number;
-    ue_id_g = (node_num == 0)? 0 : node_num-2;
+
     init_nrUE_standalone_thread(ue_id_g);
+
 }
 
 static void nsa_rrc_ue_process_ueCapabilityEnquiry(void)

targets/RT/USER/lte-ue.c

@@ -421,8 +421,8 @@ void init_UE_stub_single_thread(int nb_inst,
 void init_UE_standalone_thread(int ue_idx)
 {
   const char *standalone_addr = "127.0.0.1"; // these two lines go into init
-  int standalone_tx_port = 3211 + ue_idx*2;
-  int standalone_rx_port = 3212 + ue_idx*2;
+  int standalone_tx_port = 3211 + ue_idx * 2;
+  int standalone_rx_port = 3212 + ue_idx * 2;
   ue_init_standalone_socket(standalone_addr, standalone_tx_port, standalone_rx_port);
 
   pthread_t thread;