Enhanced SIM for E2AP v1 for TS UC

[sim/e2-interface.git] / e2sim / e2apv1sim / src / X2AP / x2ap_generate_messages.c

diff --git a/e2sim/e2apv1sim/src/X2AP/x2ap_generate_messages.c b/e2sim/e2apv1sim/src/X2AP/x2ap_generate_messages.c
new file mode 100644 (file)
index 0000000..db12a3e
--- /dev/null
+++ b/e2sim/e2apv1sim/src/X2AP/x2ap_generate_messages.c
@@ -0,0 +1,113 @@
+/*
+ *
+ * Copyright 2019 AT&T Intellectual Property
+ * Copyright 2019 Nokia
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <unistd.h>
+#include <string.h>
+#include "x2ap_generate_messages.h"
+#include "x2ap_asn_codec.h"
+#include "e2sim_defs.h"
+
+int asn1_xer_print = 0;
+int MAX_XML_BUFFER = 10000;
+
+void x2ap_fetch_pdu_from_XML(X2AP_PDU_t **pdu, char *filename)
+{
+
+  uint8_t         buf[MAX_XML_BUFFER];
+
+  asn_dec_rval_t  rval;
+  size_t          size;
+  FILE            *f;
+
+  char XML_path[200];
+  char *work_dir = getenv(WORKDIR_ENV);
+
+  strcpy(XML_path, work_dir);
+  strcat(XML_path, "/src/X2AP/MESSAGES/XML/");
+  strcat(XML_path, filename);
+
+  //printf("Generate X2AP PDU from XML file: %s\n", XML_path);
+
+  f = fopen(XML_path, "r");
+  assert(f);
+  size = fread(buf, 1, sizeof(buf), f);
+  if(size == 0 || size == sizeof(buf))
+  {
+    fprintf(stderr, "%s: Too large input\n", XML_path);
+    exit(1);
+  }
+
+  fclose(f);
+
+  //printf("Decode the XER buffer\n");
+  rval = xer_decode(NULL, &asn_DEF_X2AP_PDU, (void **)pdu, buf, size);
+  assert(rval.code == RC_OK);
+
+}
+
+uint32_t x2ap_generate_x2_setup_request(uint8_t **buffer)
+{
+  X2AP_PDU_t *pdu;
+  pdu = (X2AP_PDU_t *)calloc(1, sizeof(X2AP_PDU_t));
+
+  uint32_t len;
+
+  char *XML_file = "sample_x2_setup_request.xml";
+
+  x2ap_fetch_pdu_from_XML(&pdu, XML_file);
+
+  if(asn1_xer_print)
+    xer_fprint(stdout, &asn_DEF_X2AP_PDU, (void *)pdu);
+
+  if(X2AP_ASN_encode(pdu, buffer, &len) < 0)
+  {
+    fprintf(stderr, "Failed to APER encode X2 Setup Request\n");
+    return -1;
+  }
+
+  return len;
+
+}
+
+uint32_t x2ap_generate_x2_setup_response(uint8_t **buffer)
+{
+  X2AP_PDU_t *pdu;
+  pdu = (X2AP_PDU_t *)calloc(1, sizeof(X2AP_PDU_t));
+
+  uint32_t len;
+
+  char *XML_file = "sample_x2_setup_response.xml";
+
+  x2ap_fetch_pdu_from_XML(&pdu, XML_file);
+
+  if(asn1_xer_print)
+    xer_fprint(stdout, &asn_DEF_X2AP_PDU, (void *)pdu);
+
+  if(X2AP_ASN_encode(pdu, buffer, &len) < 0)
+  {
+    fprintf(stderr, "Failed to APER encode X2 Setup Request\n");
+    return -1;
+  }
+
+  return len;
+
+}