MME2 changes - Propped commits from openmme/paging branch. Added scripts
for code gen
Change-Id: Ie55032217232214ac8544ca76ea34335205329e4
diff --git a/src/s11/handlers/release_bearer_handler.c b/src/s11/handlers/release_bearer_handler.c
new file mode 100644
index 0000000..e18cc37
--- /dev/null
+++ b/src/s11/handlers/release_bearer_handler.c
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2019, Infosys Ltd.
+ *
+ * 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 <pthread.h>
+#include <string.h>
+
+#include "log.h"
+#include "err_codes.h"
+#include "message_queues.h"
+#include "ipc_api.h"
+#include "s11_structs.h"
+#include "msgType.h"
+//#include "stage7_info.h"
+#include "gtpv2c.h"
+#include "gtpv2c_ie.h"
+#include "../../gtpV2Codec/gtpV2StackWrappers.h"
+
+/************************************************************************
+Current file : Stage 7 handler. To listen MB from mme-app and fwd to CP
+ATTACH stages :
+ Stage 1 : IAM-->[stage1 handler]-->AIR, ULR
+ Stage 2 : AIA, ULA -->[stage2 handler]--> Auth req
+ Stage 3 : Auth resp-->[stage3 handler]-->Sec mode cmd
+ Stage 4 : sec mode resp-->[stage4 handler]-->esm infor req
+ Stage 5 : esm infor resp-->[stage5 handler]-->create session
+ Stage 6 : create session resp-->[stage6 handler]-->init ctx setup
+--> Stage 7 : attach complete-->[stage7 handler]-->modify bearer
+**************************************************************************/
+
+/****Globals and externs ***/
+
+
+extern int g_s11_fd;
+extern struct sockaddr_in g_s11_cp_addr;
+extern socklen_t g_s11_serv_size;
+/*TODO: S11 protocol sequence number - need to make it atomic. multiple thread to access this*/
+extern volatile uint32_t g_s11_sequence;
+
+struct MsgBuffer* rbReqMsgBuf_p = NULL;
+extern struct GtpV2Stack* gtpStack_gp;
+
+
+/****Global and externs end***/
+/**
+* Stage specific message processing.
+*/
+static int
+release_bearer_processing(struct RB_Q_msg *rb_msg)
+{
+ GtpV2MessageHeader gtpHeader;
+ gtpHeader.msgType = GTP_RELEASE_BEARER_REQ;
+ gtpHeader.sequenceNumber = g_s11_sequence;
+ gtpHeader.teidPresent = true;
+ gtpHeader.teid = rb_msg->s11_sgw_c_fteid.header.teid_gre;
+
+ g_s11_sequence++;
+
+ ReleaseAccessBearersRequestMsgData msgData;
+ memset(&msgData, 0, sizeof(msgData));
+
+ msgData.indicationFlagsIePresent = true;
+ msgData.indicationFlags.iOI = true;
+
+ GtpV2Stack_buildGtpV2Message(gtpStack_gp, rbReqMsgBuf_p, >pHeader, &msgData);
+
+ sendto(g_s11_fd,
+ MsgBuffer_getDataPointer(rbReqMsgBuf_p),
+ MsgBuffer_getBufLen(rbReqMsgBuf_p), 0,
+ (struct sockaddr*)&g_s11_cp_addr,
+ g_s11_serv_size);
+ //TODO " error chk, eagain etc?
+ log_msg(LOG_INFO, "Release Bearer sent, len - %d bytes.\n", MsgBuffer_getBufLen(rbReqMsgBuf_p));
+
+ MsgBuffer_reset(rbReqMsgBuf_p);
+
+ return SUCCESS;
+
+}
+
+
+/**
+* Thread function for stage.
+*/
+void*
+release_bearer_handler(void *data)
+{
+
+ log_msg(LOG_INFO, "Release bearer handler initialized\n");
+
+ release_bearer_processing((struct RB_Q_msg *)data);
+
+ return NULL;
+}
+
+