Merge remote-tracking branch 'origin/remove-osd' into integration_2026_w13 (!4004)

Remove OSD, some scripts, oaisim references

The README says:
  It is just generating the XML file and it is placing it in
  $(OPENAIR_TARGETS)/SIMU/EXAMPLE/OSD/WEBXML/ or http://localhost/xmlfile/
  so that the oaisim could pars and run the simulation/emulation

oaisim does not exist anymore, and corresponding simulation cannot be done.
Also, it requires XAMPP and similar technologies, that I think nobody uses
in the context of OAI.
Remove also most references to oaisim.
Remove some scripts that are likely not used by anybody, or straight useless.

openair3/NAS/UE/UEprocess.c

@@ -393,7 +393,6 @@ static void _nas_clean(user_api_id_t *user_api_id, int net_fd)
 
   LOG_TRACE (INFO, "UE-MAIN   - Perform EMM and ESM cleanup");
   // FIXME nas_network_cleanup depends on nas_user_t
-  // Why this program should interfere like that with oaisim ?
   //nas_network_cleanup ();
 
   LOG_TRACE (INFO, "UE-MAIN   - "

openair3/NGAP/ngap_gNB.c

@@ -66,10 +66,6 @@
 #include "sctp_messages_types.h"
 #include "tree.h"
 
-#if defined(TEST_S1C_AMF)
-  #include "oaisim_amf_test_s1c.h"
-#endif
-
 static int ngap_gNB_generate_ng_setup_request(
   ngap_gNB_instance_t *instance_p, ngap_gNB_amf_data_t *ngap_amf_data_p);
 
@@ -300,13 +296,8 @@ static
 void ngap_gNB_handle_sctp_data_ind(sctp_data_ind_t *sctp_data_ind) {
   int result;
   DevAssert(sctp_data_ind != NULL);
-#if defined(TEST_S1C_AMF)
-  amf_test_s1_notify_sctp_data_ind(sctp_data_ind->assoc_id, sctp_data_ind->stream,
-                                   sctp_data_ind->buffer, sctp_data_ind->buffer_length);
-#else
   ngap_gNB_handle_message(sctp_data_ind->assoc_id, sctp_data_ind->stream,
                           sctp_data_ind->buffer, sctp_data_ind->buffer_length);
-#endif
   result = itti_free(TASK_UNKNOWN, sctp_data_ind->buffer);
   AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
 }

openair3/S1AP/s1ap_eNB.c

@@ -59,9 +59,6 @@
 
 #include "assertions.h"
 #include "conversions.h"
-#if defined(TEST_S1C_MME)
-  #include "oaisim_mme_test_s1c.h"
-#endif
 
 static int s1ap_eNB_generate_s1_setup_request(
   s1ap_eNB_instance_t *instance_p, s1ap_eNB_mme_data_t *s1ap_mme_data_p);
@@ -411,15 +408,10 @@ static
 void s1ap_eNB_handle_sctp_data_ind(sctp_data_ind_t *sctp_data_ind) {
   int result;
   DevAssert(sctp_data_ind != NULL);
-#if defined(TEST_S1C_MME)
-  mme_test_s1_notify_sctp_data_ind(sctp_data_ind->assoc_id, sctp_data_ind->stream,
-                                   sctp_data_ind->buffer, sctp_data_ind->buffer_length);
-#else
   if (s1ap_eNB_handle_message(sctp_data_ind->assoc_id, sctp_data_ind->stream,
                           sctp_data_ind->buffer, sctp_data_ind->buffer_length) == -1) {
     S1AP_ERROR("Failed to handle s1ap eNB message\n");
   }
-#endif
   result = itti_free(TASK_UNKNOWN, sctp_data_ind->buffer);
   AssertFatal (result == EXIT_SUCCESS, "Failed to free memory (%d)!\n", result);
 }

openair3/valgrind.sh

@@ -1,2 +0,0 @@
-#!/bin/sh
-valgrind --tool=memcheck --leak-check=full --show-reachable=yes --num-callers=20 --track-origins=yes --track-fds=yes ./objs/OAISIM_MME/oaisim_mme 2>leakage