Add test for E1AP Bearer Context Setup Request enc/dec library

openair2/E1AP/tests/CMakeLists.txt

@@ -2,5 +2,8 @@ add_executable(e1ap_lib_test e1ap_lib_test.c)
 add_dependencies(tests e1ap_lib_test)
 add_test(NAME e1ap_lib_test COMMAND e1ap_lib_test)
 target_link_libraries(e1ap_lib_test PRIVATE e1ap_lib)
-target_link_libraries(e1ap_lib_test PRIVATE asn1_f1ap)
+target_link_libraries(e1ap_lib_test PRIVATE asn1_e1ap)
-target_include_directories(e1ap_lib_test PRIVATE ../../../)
+target_include_directories(e1ap_lib_test PRIVATE
+                           ${CMAKE_SOURCE_DIR}
+                           ${CMAKE_CURRENT_SOURCE_DIR}
+)

openair2/E1AP/tests/e1ap_lib_test.c

@@ -30,6 +30,137 @@
 #include <stdint.h>
 #include <stdio.h>
 
+#include "E1AP/lib/e1ap_bearer_context_management.h"
+#include "E1AP/lib/e1ap_lib_includes.h"
 #include "common/utils/assertions.h"
-#include "e1ap.h"
 
+void exit_function(const char *file, const char *function, const int line, const char *s, const int assert)
+{
+  printf("detected error at %s:%d:%s: %s\n", file, line, function, s);
+  abort();
+}
+
+static E1AP_E1AP_PDU_t *e1ap_encode_decode(const E1AP_E1AP_PDU_t *enc_pdu)
+{
+  // xer_fprint(stdout, &asn_DEF_E1AP_E1AP_PDU, enc_pdu);
+
+  DevAssert(enc_pdu != NULL);
+  char errbuf[2048];
+  size_t errlen = sizeof(errbuf);
+  int ret = asn_check_constraints(&asn_DEF_E1AP_E1AP_PDU, enc_pdu, errbuf, &errlen);
+  AssertFatal(ret == 0, "asn_check_constraints() failed: %s\n", errbuf);
+
+  uint8_t msgbuf[16384];
+  asn_enc_rval_t enc = aper_encode_to_buffer(&asn_DEF_E1AP_E1AP_PDU, NULL, enc_pdu, msgbuf, sizeof(msgbuf));
+  AssertFatal(enc.encoded > 0, "aper_encode_to_buffer() failed\n");
+
+  E1AP_E1AP_PDU_t *dec_pdu = NULL;
+  asn_codec_ctx_t st = {.max_stack_size = 100 * 1000};
+  asn_dec_rval_t dec = aper_decode(&st, &asn_DEF_E1AP_E1AP_PDU, (void **)&dec_pdu, msgbuf, enc.encoded, 0, 0);
+  AssertFatal(dec.code == RC_OK, "aper_decode() failed\n");
+
+  // xer_fprint(stdout, &asn_DEF_E1AP_E1AP_PDU, dec_pdu);
+  return dec_pdu;
+}
+
+static void e1ap_msg_free(E1AP_E1AP_PDU_t *pdu)
+{
+  ASN_STRUCT_FREE(asn_DEF_E1AP_E1AP_PDU, pdu);
+}
+
+/**
+ * @brief Test E1AP Bearer Context Setup Request encoding/decoding
+ */
+static void test_bearer_context_setup_request(void)
+{
+  bearer_context_pdcp_config_t pdcp = {
+    .discardTimer = E1AP_DiscardTimer_ms10,
+    .pDCP_Reestablishment = E1AP_PDCP_Reestablishment_true,
+    .pDCP_SN_Size_DL = E1AP_PDCP_SN_Size_s_12,
+    .pDCP_SN_Size_UL = E1AP_PDCP_SN_Size_s_12,
+    .reorderingTimer = 10,
+    .rLC_Mode = E1AP_RLC_Mode_rlc_am,
+  };
+
+  bearer_context_sdap_config_t sdap = {
+    .defaultDRB = 1,
+    .sDAP_Header_DL = true,
+    .sDAP_Header_UL = true,
+  };
+
+  qos_flow_to_setup_t qos = {
+    .qfi = 1,
+    .qos_params.alloc_reten_priority.preemption_capability = E1AP_Pre_emptionCapability_shall_not_trigger_pre_emption,
+    .qos_params.alloc_reten_priority.preemption_vulnerability = E1AP_Pre_emptionVulnerability_not_pre_emptable,
+    .qos_params.alloc_reten_priority.priority_level = E1AP_PriorityLevel_highest,
+    .qos_params.qos_characteristics.non_dynamic.fiveqi = 9,
+  };
+
+  security_indication_t security = {
+    .confidentialityProtectionIndication = E1AP_ConfidentialityProtectionIndication_required,
+    .integrityProtectionIndication = E1AP_IntegrityProtectionIndication_required,
+    .maxIPrate = E1AP_MaxIPrate_max_UErate,
+  };
+
+  // Step 1: Initialize the E1AP Bearer Context Setup Request
+  e1ap_bearer_setup_req_t orig = {
+      .gNB_cu_cp_ue_id = 1234,
+      .cipheringAlgorithm = 0x01,
+      .integrityProtectionAlgorithm = 0x01,
+      .ueDlAggMaxBitRate = 1000000000,
+      .bearerContextStatus = 0,
+      .servingPLMNid.mcc = 001,
+      .servingPLMNid.mnc = 01,
+      .servingPLMNid.mnc_digit_length = 0x02,
+      .activityNotificationLevel = ANL_PDU_SESSION,
+      .numPDUSessions = 1,
+      .pduSession[0].sessionId = 1,
+      .pduSession[0].sessionType = E1AP_PDU_Session_Type_ipv4,
+      .pduSession[0].nssai.sd = 0x01,
+      .pduSession[0].nssai.sst = 0x01,
+      .pduSession[0].securityIndication = security,
+      .pduSession[0].numDRB2Setup = 1,
+      .pduSession[0].UP_TL_information.tlAddress = 167772161,
+      .pduSession[0].UP_TL_information.teId = 0x12345,
+      .pduSession[0].DRBnGRanList[0].id = 1,
+      .pduSession[0].DRBnGRanList[0].sdap_config = sdap,
+      .pduSession[0].DRBnGRanList[0].pdcp_config = pdcp,
+      .pduSession[0].DRBnGRanList[0].id = 1,
+      .pduSession[0].DRBnGRanList[0].numCellGroups = 1,
+      .pduSession[0].DRBnGRanList[0].cellGroupList[0] = MCG,
+      .pduSession[0].DRBnGRanList[0].numQosFlow2Setup = 1,
+      .pduSession[0].DRBnGRanList[0].qosFlows[0] = qos,
+  };
+  memset(orig.encryptionKey, 0xAB, sizeof(orig.encryptionKey));
+  memset(orig.integrityProtectionKey, 0xCD, sizeof(orig.integrityProtectionKey));
+  // E1AP encode the original message
+  E1AP_E1AP_PDU_t *enc = encode_E1_bearer_context_setup_request(&orig);
+  // E1AP decode the encoded message
+  E1AP_E1AP_PDU_t *dec = e1ap_encode_decode(enc);
+  // Free the E1AP encoded message
+  e1ap_msg_free(enc);
+  // E1 message decode
+  e1ap_bearer_setup_req_t decoded = {0};
+  bool ret = decode_E1_bearer_context_setup_request(dec, &decoded);
+  AssertFatal(ret, "decode_E1_bearer_context_setup_request(): could not decode message\n");
+  // Free the E1AP decoded message
+  e1ap_msg_free(dec);
+  // Equality check original/decoded
+  ret = eq_bearer_context_setup_request(&orig, &decoded);
+  AssertFatal(ret, "eq_bearer_context_setup_request(): decoded message doesn't match\n");
+  // Free the memory for the decoded message
+  free_e1ap_context_setup_request(&decoded);
+  // Deep copy and equality check of the original message
+  e1ap_bearer_setup_req_t cp = cp_bearer_context_setup_request(&orig);
+  ret = eq_bearer_context_setup_request(&orig, &cp);
+  AssertFatal(ret, "eq_bearer_context_setup_request(): copied message doesn't match\n");
+  // Free the copied message and original
+  free_e1ap_context_setup_request(&cp);
+  free_e1ap_context_setup_request(&orig);
+}
+
+int main()
+{
+  test_bearer_context_setup_request();
+  return 0;
+}