Add basic E2 agent through git submodule

- Add E2 agent that leverages FlexRIC e2ap library - Add documentation in openair2/E2AP/README.md - Currently, statistics exported are random
2023-07-07 13:45:18 +02:00
parent c81ed57a93
commit 70ad480a29
36 changed files with 1202 additions and 0 deletions
@@ -0,0 +1,108 @@
+#include "ran_func_rc.h"
+#include "../../flexric/test/rnd/fill_rnd_data_rc.h"
+#include "../../flexric/src/sm/rc_sm/ie/ir/lst_ran_param.h"
+#include "../../flexric/src/sm/rc_sm/ie/ir/ran_param_list.h"
+#include <assert.h>
+#include <stdio.h>
+#include <pthread.h>
+#include <unistd.h>
+
+void read_rc_sm(void* data)
+{
+  assert(data != NULL);
+//  assert(data->type == RAN_CTRL_STATS_V1_03);
+  assert(0!=0 && "Not implemented");
+}
+
+void read_rc_setup_sm(void* data)
+{
+  assert(data != NULL);
+//  assert(data->type == RAN_CTRL_V1_3_AGENT_IF_E2_SETUP_ANS_V0);
+  rc_e2_setup_t* rc = (rc_e2_setup_t*)data;
+  rc->ran_func_def = fill_rc_ran_func_def();
+}
+
+sm_ag_if_ans_t write_ctrl_rc_sm(void const* data)
+{
+  assert(data != NULL);
+//  assert(data->type == RAN_CONTROL_CTRL_V1_03 );
+
+  rc_ctrl_req_data_t const* ctrl = (rc_ctrl_req_data_t const*)data;
+  if(ctrl->hdr.format == FORMAT_1_E2SM_RC_CTRL_HDR){
+    if(ctrl->hdr.frmt_1.ric_style_type == 1 && ctrl->hdr.frmt_1.ctrl_act_id == 2){
+      printf("QoS flow mapping configuration \n");
+      e2sm_rc_ctrl_msg_frmt_1_t const* frmt_1 = &ctrl->msg.frmt_1;
+      for(size_t i = 0; i < frmt_1->sz_ran_param; ++i){
+        seq_ran_param_t const* rp = frmt_1->ran_param;
+        if(rp[i].ran_param_id == 1){
+          assert(rp[i].ran_param_val.type == ELEMENT_KEY_FLAG_TRUE_RAN_PARAMETER_VAL_TYPE );
+          printf("DRB ID %ld \n", rp[i].ran_param_val.flag_true->int_ran);
+        } else if(rp[i].ran_param_id == 2){
+          assert(rp[i].ran_param_val.type == LIST_RAN_PARAMETER_VAL_TYPE);
+          printf("List of QoS Flows to be modified \n");
+          for(size_t j = 0; j < ctrl->msg.frmt_1.ran_param[i].ran_param_val.lst->sz_lst_ran_param; ++j){ 
+            lst_ran_param_t const* lrp = rp[i].ran_param_val.lst->lst_ran_param;
+            // The following assertion should be true, but there is a bug in the std
+            // check src/sm/rc_sm/enc/rc_enc_asn.c:1085 and src/sm/rc_sm/enc/rc_enc_asn.c:984 
+            // assert(lrp[j].ran_param_id == 3); 
+            assert(lrp[j].ran_param_struct.ran_param_struct[0].ran_param_id == 4) ;
+            assert(lrp[j].ran_param_struct.ran_param_struct[0].ran_param_val.type == ELEMENT_KEY_FLAG_TRUE_RAN_PARAMETER_VAL_TYPE);
+
+            int64_t qfi = lrp[j].ran_param_struct.ran_param_struct[0].ran_param_val.flag_true->int_ran;
+            assert(qfi > -1 && qfi < 65);
+
+            assert(lrp[j].ran_param_struct.ran_param_struct[1].ran_param_id == 5);
+            assert(lrp[j].ran_param_struct.ran_param_struct[1].ran_param_val.type == ELEMENT_KEY_FLAG_FALSE_RAN_PARAMETER_VAL_TYPE);
+            int64_t dir = lrp[j].ran_param_struct.ran_param_struct[1].ran_param_val.flag_false->int_ran;
+            assert(dir == 0 || dir == 1);
+            printf("qfi = %ld dir %ld \n", qfi, dir);
+          }
+        } 
+      }
+    }
+  }
+
+  sm_ag_if_ans_t ans = {.type = CTRL_OUTCOME_SM_AG_IF_ANS_V0};
+  ans.ctrl_out.type = RAN_CTRL_V1_3_AGENT_IF_CTRL_ANS_V0;
+  return ans;
+}
+
+static
+void* emulate_rrc_msg(void* ptr)
+{
+  uint32_t* ric_id = (uint32_t*)ptr; 
+  for(size_t i = 0; i < 5; ++i){
+    usleep(rand()%4000);
+    rc_ind_data_t* d = calloc(1, sizeof(rc_ind_data_t)); 
+    assert(d != NULL && "Memory exhausted");
+    *d = fill_rnd_rc_ind_data();
+    async_event_agent_api(*ric_id, d);
+    printf("Event for RIC Req ID %u generated\n", *ric_id);
+  }
+
+  free(ptr);
+  return NULL;
+}
+
+static
+pthread_t t_ran_ctrl;
+
+sm_ag_if_ans_t write_subs_rc_sm(void const* src)
+{
+  assert(src != NULL); // && src->type == RAN_CTRL_SUBS_V1_03);
+
+  wr_rc_sub_data_t* wr_rc = (wr_rc_sub_data_t*)src;
+  printf("ric req id %d \n", wr_rc->ric_req_id);
+
+  uint32_t* ptr = malloc(sizeof(uint32_t));
+  assert(ptr != NULL);
+  *ptr = wr_rc->ric_req_id;
+
+  int rc = pthread_create(&t_ran_ctrl, NULL, emulate_rrc_msg, ptr);
+  assert(rc == 0);
+
+  sm_ag_if_ans_t ans = {0}; 
+
+  return ans;
+}
+