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Use an un-official community collaboration version of asn1c

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1. It's no need to modify LTE-RRC's ASN.1 file for enabling option group
   feature in generate_asn1.
2. It's no need to patch the C header files generated from
   LTE-RRC/S1AP/X2AP's ASN.1 in fix_asn1.
3. It's no need to pre-process S1AP/X2AP's ASN.1 for enabling information
   object class feature by asn1tostruct.py.

This commit requires an un-official version of asn1c which are
collaboration of asn1c community members and `build_helper` is modified
in this commit accordingly :

  https://github.com/brchiu/asn1c/tree/velichkov_s1ap_plus_option_group

This asn1c can also convert ASN.1 of 5G NR RRC (38.331, v15.1.0) and
generate C files with -findirect-choice command line option without
tweaking ASN.1 file.

Examples for how to use this asn1c for S1AP are in S1AP files, e.g.
s1ap_eNB_nas_procedures.c and s1ap_eNB_handler.c.

There is an modified openair-cn (based on tag 0.5.0) with this new asn1c at :

  https://github.com/brchiu/openair-cn/tree/new-asn1c

Basic S1AP interaction and data transfer operation between OAI eNB and
this modified openair-cn has been tested.

Note: Community version of asn1c is keeping evolved to provide better usage.
This commit is contained in:
Bi-Ruei, Chiu
2018-07-13 10:04:46 +08:00
parent df1e5b21c8
commit a247907d3a
103 changed files with 159551 additions and 24258 deletions
Download Patch File Download Diff File Expand all files Collapse all files
openair3/S1AP/s1ap_eNB_overload.c
+18 -16
View File
@@ -33,7 +33,6 @@
#include "intertask_interface.h"
#include "s1ap_common.h"
#include "s1ap_ies_defs.h"
#include "s1ap_eNB_defs.h"
#include "s1ap_eNB.h"
@@ -44,20 +43,24 @@
#include "assertions.h"
int s1ap_eNB_handle_overload_start(uint32_t assoc_id,
uint32_t stream,
struct s1ap_message_s *message_p)
int s1ap_eNB_handle_overload_start(uint32_t assoc_id,
uint32_t stream,
S1AP_S1AP_PDU_t *pdu)
{
S1ap_OverloadStartIEs_t *overload_start_p;
s1ap_eNB_mme_data_t *mme_desc_p;
S1AP_OverloadStart_t *container;
S1AP_OverloadStartIEs_t *ie;
DevAssert(message_p != NULL);
DevAssert(pdu != NULL);
overload_start_p = &message_p->msg.s1ap_OverloadStartIEs;
container = &pdu->choice.initiatingMessage.value.choice.OverloadStart;
DevCheck(overload_start_p->overloadResponse.present ==
S1ap_OverloadResponse_PR_overloadAction,
S1ap_OverloadResponse_PR_overloadAction, 0, 0);
S1AP_FIND_PROTOCOLIE_BY_ID(S1AP_OverloadStartIEs_t, ie, container,
S1AP_ProtocolIE_ID_id_OverloadResponse, true);
DevCheck(ie->value.choice.OverloadResponse.present ==
S1AP_OverloadResponse_PR_overloadAction,
S1AP_OverloadResponse_PR_overloadAction, 0, 0);
/* Non UE-associated signalling -> stream 0 */
DevCheck(stream == 0, stream, 0, 0);
@@ -72,21 +75,20 @@ int s1ap_eNB_handle_overload_start(uint32_t assoc_id,
*/
mme_desc_p->state = S1AP_ENB_OVERLOAD;
mme_desc_p->overload_state =
overload_start_p->overloadResponse.choice.overloadAction;
ie->value.choice.OverloadResponse.choice.overloadAction;
return 0;
}
int s1ap_eNB_handle_overload_stop(uint32_t assoc_id,
uint32_t stream,
struct s1ap_message_s *message_p)
int s1ap_eNB_handle_overload_stop(uint32_t assoc_id,
uint32_t stream,
S1AP_S1AP_PDU_t *pdu)
{
/* We received Overload stop message, meaning that the MME is no more
* overloaded. This is an empty message, with only message header and no
* Information Element.
*/
DevAssert(message_p != NULL);
DevAssert(pdu != NULL);
s1ap_eNB_mme_data_t *mme_desc_p;