first version for HTTP2 support

README.txt

@@ -87,7 +87,7 @@ cd /openair-cn-cups/build/scripts
 #configure SPGWU using an example configure file (spgw_u.conf)
 cd /oai-cn5g-smf/src/test/upf/
 ./spgwu_conf.sh
-sudo spgwu -c /usr/local/etc/oai/spgw_u.conf  -o
+sudo spgwu -c /usr/local/etc/oai/spgw_u.conf
 
 
 ## Build and launch AMF client
@@ -98,4 +98,8 @@ cmake ..
 make
 ./amf-client -i 172.16.1.101
 
+#Launch AMF client with HTTP2 (-v: http version, -p: port)
+./amf-client -i 172.16.1.101 -v 2 -p 9090
+
+
 

etc/smf.conf

@@ -39,6 +39,7 @@ SMF =
             #IPV4_ADDRESS          = "@SMF_INTERFACE_IPV4_ADDRESS_FOR_SBI@";                        # STRING, CIDR or "read" to let app read interface configured IP address
             IPV4_ADDRESS           = "read";
             PORT                   = @SMF_INTERFACE_PORT_FOR_SBI@ #Normally we don't need this (default port 80)
+            HTTP2_PORT             = @SMF_INTERFACE_HTTP2_PORT_FOR_SBI@ 
          };
                   
        TEST_UPF : #for BUPT test only!

src/api-server/CMakeLists.txt

-cmake_minimum_required (VERSION 3.2)
-
-project(smf-api-server)
-
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -pg -g3" )
-
-
-include_directories(model)
-include_directories(api)
-include_directories(impl)
-
-file(GLOB SRCS
-    ${CMAKE_CURRENT_SOURCE_DIR}/api/*.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/impl/*.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/model/*.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp
-)
-
-add_executable(${PROJECT_NAME} ${SRCS} )
-target_link_libraries(${PROJECT_NAME} pistache pthread)

src/api-server/api/IndividualSMContextApi.cpp

@@ -43,7 +43,7 @@
 
 #include "logger.hpp"
 #include "Helpers.h"
-#include "simple_parser.hpp"
+#include "mime_parser.hpp"
 
 namespace oai {
 namespace smf_server {
@@ -103,7 +103,6 @@ void IndividualSMContextApi::release_sm_context_handler(
     response.send(Pistache::Http::Code::Internal_Server_Error, e.what());
     return;
   }
-
 }
 
 void IndividualSMContextApi::retrieve_sm_context_handler(
@@ -141,7 +140,7 @@ void IndividualSMContextApi::update_sm_context_handler(
   SmContextUpdateMessage smContextUpdateMessage = { };
 
   //simple parser
-  simple_parser sp = { };
+  mime_parser sp = { };
   sp.parse(request.body());
 
   std::vector<mime_part> parts = { };

src/api-server/api/SMContextsCollectionApi.cpp

@@ -43,11 +43,7 @@
 
 #include "logger.hpp"
 #include "Helpers.h"
-#include "simple_parser.hpp"
-
-extern "C" {
-#include "dynamic_memory_check.h"
-}
+#include "mime_parser.hpp"
 
 namespace oai {
 namespace smf_server {
@@ -90,7 +86,7 @@ void SMContextsCollectionApi::post_sm_contexts_handler(
   SmContextCreateData smContextCreateData = { };
 
   //simple parser
-  simple_parser sp = { };
+  mime_parser sp = { };
   sp.parse(request.body());
 
   std::vector<mime_part> parts = { };
@@ -99,7 +95,7 @@ void SMContextsCollectionApi::post_sm_contexts_handler(
   Logger::smf_api_server().debug("Number of MIME parts %d", size);
   //at least 2 parts for Json data and N1 (+ N2)
   if (size < 2) {
-    response.send(Pistache::Http::Code::Bad_Request, "");
+    response.send(Pistache::Http::Code::Bad_Request);
     return;
   }
 
@@ -107,14 +103,16 @@ void SMContextsCollectionApi::post_sm_contexts_handler(
   try {
     nlohmann::json::parse(parts[0].body.c_str()).get_to(smContextCreateData);
     smContextMessage.setJsonData(smContextCreateData);
+    //must include N1 NAS msg
     if (parts[1].content_type.compare("application/vnd.3gpp.5gnas") == 0) {
       smContextMessage.setBinaryDataN1SmMessage(parts[1].body);
-    } else if (parts[1].content_type.compare("application/vnd.3gpp.ngap")
-        == 0) {
-      smContextMessage.setBinaryDataN2SmInformation(parts[1].body);
+    } else {
+      response.send(Pistache::Http::Code::Bad_Request);
+      return;
     }
 
     this->post_sm_contexts(smContextMessage, response);
+
   } catch (nlohmann::detail::exception &e) {
     //send a 400 error
     Logger::smf_api_server().warn("Can not parse the json data (error: %s)!",

src/api-server/impl/IndividualSMContextApiImpl.cpp

@@ -32,6 +32,8 @@
  */
 
 #include "IndividualSMContextApiImpl.h"
+#include <nghttp2/asio_http2_server.h>
+#include "mime_parser.hpp"
 
 namespace oai {
 namespace smf_server {
@@ -56,18 +58,35 @@ void IndividualSMContextApiImpl::release_sm_context(
   //TODO: to be updated as update_sm_context_handler
   Logger::smf_api_server().info("release_sm_context...");
 
+  boost::shared_ptr<boost::promise<smf::pdu_session_release_sm_context_response> > p =
+      boost::make_shared<
+          boost::promise<smf::pdu_session_release_sm_context_response> >();
+  boost::shared_future<smf::pdu_session_release_sm_context_response> f;
+  f = p->get_future();
+
+  //Generate ID for this promise (to be used in SMF-APP)
+  uint32_t promise_id = generate_promise_id();
+  Logger::smf_api_server().debug("Promise ID generated %d", promise_id);
+  m_smf_app->add_promise(promise_id, p);
+
   //handle Nsmf_PDUSession_UpdateSMContext Request
   Logger::smf_api_server().info(
       "Received a PDUSession_ReleaseSMContext Request: PDU Session Release request from AMF.");
   std::shared_ptr<itti_n11_release_sm_context_request> itti_msg =
       std::make_shared<itti_n11_release_sm_context_request>(TASK_SMF_N11,
                                                             TASK_SMF_APP,
-                                                           response,
+                                                            promise_id,
                                                             smContextRef);
 
   itti_msg->scid = smContextRef;
+  itti_msg->http_version = 1;
   m_smf_app->handle_pdu_session_release_sm_context_request(itti_msg);
 
+  //wait for the result from APP and send reply to AMF
+  smf::pdu_session_release_sm_context_response sm_context_response = f.get();
+  Logger::smf_api_server().debug("Got result for promise ID %d", promise_id);
+
+  response.send(Pistache::Http::Code(sm_context_response.get_http_code()));
 }
 
 void IndividualSMContextApiImpl::retrieve_sm_context(
@@ -96,7 +115,7 @@ void IndividualSMContextApiImpl::update_sm_context(
     //N2 SM (for Session establishment)
     std::string n2_sm_information = smContextUpdateMessage
         .getBinaryDataN2SmInformation();
-    Logger::smf_api_server().debug("smContextMessage, n2 sm information %s",
+    Logger::smf_api_server().debug("N2 SM Information %s",
                                    n2_sm_information.c_str());
     std::string n2_sm_info_type = smContextUpdateData.getN2SmInfoType();
     sm_context_req_msg.set_n2_sm_information(n2_sm_information);
@@ -106,8 +125,7 @@ void IndividualSMContextApiImpl::update_sm_context(
     //N1 SM (for session modification)
     std::string n1_sm_message =
         smContextUpdateMessage.getBinaryDataN1SmMessage();
-    Logger::smf_api_server().debug("smContextMessage, n1 sm message %s",
-                                   n1_sm_message.c_str());
+    Logger::smf_api_server().debug("N1 SM message %s", n1_sm_message.c_str());
     sm_context_req_msg.set_n1_sm_message(n1_sm_message);
   }
   //Step 2. TODO: initialize necessary values for sm context req from smContextUpdateData
@@ -135,7 +153,6 @@ void IndividualSMContextApiImpl::update_sm_context(
   //TODO: Existing PDU session, step 3, SUPI, DNN, S-NSSAIs, SM Context ID, AMF ID, Request Type, N1 SM Container (PDU Session Establishment Request), User location, Access Type, RAT Type, PEI
   //step 15. (SM Context ID -> SCID, N2 SM, Request Type)(Initial Request)
   //TODO: verify why Request Type is not define in smContextUpdateData
-
   /* AMF-initiated with a release indication to request the release of the PDU Session  (step 3.d, section 4.3.4.2@3GPP TS 23.502)*/
   if (smContextUpdateData.releaseIsSet()) {
     sm_context_req_msg.set_release(smContextUpdateData.isRelease());
@@ -146,18 +163,72 @@ void IndividualSMContextApiImpl::update_sm_context(
   //step 1.e (AN initiated modification): SM Context ID, N2 SM information (QFI, User location Information and an indication that the QoS Flow is released)
   //step 7a, SM Context ID, N2 SM information, UE location information
   //Step 11, SM Context ID, N1 SM (PDU Session Modification Command ACK), User location
+  boost::shared_ptr<boost::promise<smf::pdu_session_update_sm_context_response> > p =
+      boost::make_shared<
+          boost::promise<smf::pdu_session_update_sm_context_response> >();
+  boost::shared_future<smf::pdu_session_update_sm_context_response> f;
+  f = p->get_future();
+
+  //Generate ID for this promise (to be used in SMF-APP)
+  uint32_t promise_id = generate_promise_id();
+  Logger::smf_api_server().debug("Promise ID generated %d", promise_id);
+  m_smf_app->add_promise(promise_id, p);
+
   //Step 3. Handle the itti_n11_update_sm_context_request message in smf_app
   std::shared_ptr<itti_n11_update_sm_context_request> itti_msg =
       std::make_shared<itti_n11_update_sm_context_request>(TASK_SMF_N11,
                                                            TASK_SMF_APP,
-                                                           response,
+                                                           promise_id,
                                                            smContextRef);
   itti_msg->req = sm_context_req_msg;
-  itti_msg->scid = smContextRef;
+  itti_msg->http_version = 1;
   m_smf_app->handle_pdu_session_update_sm_context_request(itti_msg);
 
-}
+  //wait for the result from APP and send reply to AMF
+  smf::pdu_session_update_sm_context_response sm_context_response = f.get();
+  Logger::smf_api_server().debug("Got result for promise ID %d", promise_id);
+
+  nlohmann::json json_data = { };
+  mime_parser parser = { };
+  std::string body = { };
+
+  sm_context_response.get_json_data(json_data);
+  Logger::smf_api_server().debug("Json data %s", json_data.dump().c_str());
+
+  if (sm_context_response.n1_sm_msg_is_set()
+      and sm_context_response.n2_sm_info_is_set()) {
+    parser.create_multipart_related_content(
+        body, json_data.dump(), CURL_MIME_BOUNDARY,
+        sm_context_response.get_n1_sm_message(),
+        sm_context_response.get_n2_sm_information());
+    response.headers().add<Pistache::Http::Header::ContentType>(
+        Pistache::Http::Mime::MediaType(
+            "multipart/related; boundary=" + std::string(CURL_MIME_BOUNDARY)));
+  } else if (sm_context_response.n1_sm_msg_is_set()) {
+    parser.create_multipart_related_content(
+        body, json_data.dump(), CURL_MIME_BOUNDARY,
+        sm_context_response.get_n1_sm_message(),
+        multipart_related_content_part_e::NAS);
+    response.headers().add<Pistache::Http::Header::ContentType>(
+        Pistache::Http::Mime::MediaType(
+            "multipart/related; boundary=" + std::string(CURL_MIME_BOUNDARY)));
+  } else if (sm_context_response.n2_sm_info_is_set()) {
+    parser.create_multipart_related_content(
+        body, json_data.dump(), CURL_MIME_BOUNDARY,
+        sm_context_response.get_n2_sm_information(),
+        multipart_related_content_part_e::NGAP);
+    response.headers().add<Pistache::Http::Header::ContentType>(
+        Pistache::Http::Mime::MediaType(
+            "multipart/related; boundary=" + std::string(CURL_MIME_BOUNDARY)));
+  } else {
+    response.headers().add<Pistache::Http::Header::ContentType>(
+        Pistache::Http::Mime::MediaType("application/json"));
+    body = json_data.dump().c_str();
+  }
 
+  response.send(Pistache::Http::Code(sm_context_response.get_http_code()),
+                body);
+}
 }
 }
 }

src/api-server/impl/IndividualSMContextApiImpl.h

@@ -87,6 +87,11 @@ class IndividualSMContextApiImpl :
  private:
   smf::smf_app *m_smf_app;
   std::string m_address;
+ protected:
+  static uint64_t generate_promise_id() {
+    return util::uint_uid_generator<uint64_t>::get_instance().get_uid();
+  }
+
 };
 
 }

src/api-server/impl/SMContextsCollectionApiImpl.cpp

@@ -36,6 +36,7 @@
 #include "smf_msg.hpp"
 #include "itti_msg_n11.hpp"
 #include "3gpp_29.502.h"
+#include <nghttp2/asio_http2_server.h>
 
 namespace oai {
 namespace smf_server {
@@ -49,9 +50,7 @@ SMContextsCollectionApiImpl::SMContextsCollectionApiImpl(
     :
     SMContextsCollectionApi(rtr),
     m_smf_app(smf_app_inst),
-    m_address(address)
-
-{
+    m_address(address) {
 }
 
 void SMContextsCollectionApiImpl::post_sm_contexts(
@@ -66,8 +65,7 @@ void SMContextsCollectionApiImpl::post_sm_contexts(
 
   SmContextCreateData smContextCreateData = smContextMessage.getJsonData();
   std::string n1_sm_msg = smContextMessage.getBinaryDataN1SmMessage();
-  Logger::smf_api_server().debug("smContextMessage, N1 SM message: %s",
-                                 n1_sm_msg.c_str());
+  Logger::smf_api_server().debug("N1 SM message: %s", n1_sm_msg.c_str());
 
   //Step 2. Create a pdu_session_create_sm_context_request message and store the necessary information
   Logger::smf_api_server().debug(
@@ -87,38 +85,36 @@ void SMContextsCollectionApiImpl::post_sm_contexts(
   smf_string_to_supi(&supi, supi_str.c_str());
   sm_context_req_msg.set_supi(supi);
   sm_context_req_msg.set_supi_prefix(supi_prefix);
-  Logger::smf_api_server().debug(
-      "SmContextCreateData, SUPI %s, SUPI Prefix %s, IMSI %s",
-      smContextCreateData.getSupi().c_str(), supi_prefix.c_str(),
-      supi_str.c_str());
+  Logger::smf_api_server().debug("SUPI %s, SUPI Prefix %s, IMSI %s",
+                                 smContextCreateData.getSupi().c_str(),
+                                 supi_prefix.c_str(), supi_str.c_str());
 
   //dnn
-  Logger::smf_api_server().debug("SmContextCreateData, DNN %s",
+  Logger::smf_api_server().debug("DNN %s",
                                  smContextCreateData.getDnn().c_str());
   sm_context_req_msg.set_dnn(smContextCreateData.getDnn().c_str());
 
   //S-Nssai
   Logger::smf_api_server().debug(
-      "SmContextCreateData, S-NSSAI SST %d, SD %s",
-      smContextCreateData.getSNssai().getSst(),
+      "S-NSSAI SST %d, SD %s", smContextCreateData.getSNssai().getSst(),
       smContextCreateData.getSNssai().getSd().c_str());
   snssai_t snssai(smContextCreateData.getSNssai().getSst(),
                   smContextCreateData.getSNssai().getSd());
   sm_context_req_msg.set_snssai(snssai);
 
   //PDU session ID
-  Logger::smf_api_server().debug("SmContextCreateData, PDU Session ID %d",
+  Logger::smf_api_server().debug("PDU Session ID %d",
                                  smContextCreateData.getPduSessionId());
   sm_context_req_msg.set_pdu_session_id(smContextCreateData.getPduSessionId());
 
   //AMF ID (ServingNFId)
-  Logger::smf_api_server().debug("SmContextCreateDatea, ServingNfId %s",
+  Logger::smf_api_server().debug("ServingNfId %s",
                                  smContextCreateData.getServingNfId().c_str());
   sm_context_req_msg.set_serving_nf_id(
       smContextCreateData.getServingNfId().c_str());  //TODO: should be verified that AMF ID is stored in GUAMI or ServingNfId
 
   //Request Type
-  Logger::smf_api_server().debug("SmContextCreateData, RequestType %s",
+  Logger::smf_api_server().debug("RequestType %s",
                                  smContextCreateData.getRequestType().c_str());
   sm_context_req_msg.set_request_type(smContextCreateData.getRequestType());
   //PCF ID
@@ -136,7 +132,7 @@ void SMContextsCollectionApiImpl::post_sm_contexts(
   //PCFId
 
   // DNN Selection Mode
-  Logger::smf_api_server().debug("SmContextCreateData, SelMode %s",
+  Logger::smf_api_server().debug("SelMode %s",
                                  smContextCreateData.getSelMode().c_str());
   sm_context_req_msg.set_dnn_selection_mode(
       smContextCreateData.getSelMode().c_str());
@@ -152,16 +148,40 @@ void SMContextsCollectionApiImpl::post_sm_contexts(
   //SM PDU DN request container (Optional)
   //Extended protocol configuration options (Optional) e.g, FOR DHCP
 
+  boost::shared_ptr<boost::promise<smf::pdu_session_create_sm_context_response> > p =
+      boost::make_shared<
+          boost::promise<smf::pdu_session_create_sm_context_response> >();
+  boost::shared_future<smf::pdu_session_create_sm_context_response> f;
+  f = p->get_future();
+
+  //Generate ID for this promise (to be used in SMF-APP)
+  uint32_t promise_id = generate_promise_id();
+  Logger::smf_api_server().debug("Promise ID generated %d", promise_id);
+  m_smf_app->add_promise(promise_id, p);
+
   //Step 3. Handle the pdu_session_create_sm_context_request message in smf_app
   std::shared_ptr<itti_n11_create_sm_context_request> itti_msg =
       std::make_shared<itti_n11_create_sm_context_request>(TASK_SMF_N11,
                                                            TASK_SMF_APP,
-                                                           response);
+                                                           promise_id);
   itti_msg->req = sm_context_req_msg;
+  itti_msg->http_version = 1;
   m_smf_app->handle_pdu_session_create_sm_context_request(itti_msg);
 
+  //wait for the result from APP and send reply to AMF
+  smf::pdu_session_create_sm_context_response sm_context_response = f.get();
+  Logger::smf_api_server().debug("Got result for promise ID %d", promise_id);
+
+  nlohmann::json json_data = { };
+  sm_context_response.get_json_data(json_data);
+  if (!json_data.empty()) {
+    response.headers().add<Pistache::Http::Header::ContentType>(
+        Pistache::Http::Mime::MediaType("application/json"));
+    response.send(Pistache::Http::Code(sm_context_response.get_http_code()), json_data.dump().c_str());
+  } else {
+    response.send(Pistache::Http::Code(sm_context_response.get_http_code()));
+  }
 }
-
 }
 }
 }

src/api-server/impl/SMContextsCollectionApiImpl.h

@@ -73,6 +73,11 @@ class SMContextsCollectionApiImpl :
  private:
   smf::smf_app *m_smf_app;
   std::string m_address;
+ protected:
+  static uint64_t generate_promise_id() {
+    return util::uint_uid_generator<uint64_t>::get_instance().get_uid();
+  }
+
 };
 
 }

src/api-server/model/SmContextUpdateData.cpp

@@ -659,17 +659,6 @@ void SmContextUpdateData::setN2SmInfoType(std::string const& value)
     m_N2SmInfoTypeIsSet = true;
 }
 
-/*
-N2SmInfoType SmContextUpdateData::getN2SmInfoType() const
-{
-    return m_N2SmInfoType;
-}
-void SmContextUpdateData::setN2SmInfoType(N2SmInfoType const& value)
-{
-    m_N2SmInfoType = value;
-    m_N2SmInfoTypeIsSet = true;
-}
-*/
 bool SmContextUpdateData::n2SmInfoTypeIsSet() const
 {
     return m_N2SmInfoTypeIsSet;

src/api-server/smf-api-server.cpp

@@ -30,6 +30,7 @@
  *      contact@openairinterface.org
  */
 
+#include "smf-api-server.h"
 #include "pistache/endpoint.h"
 #include "pistache/http.h"
 #include "pistache/router.h"
@@ -39,7 +40,6 @@
 #include <unistd.h>
 #endif
 
-#include "smf-api-server.h"
 #define PISTACHE_SERVER_MAX_PAYLOAD 32768
 
 #ifdef __linux__
@@ -92,19 +92,3 @@ void SMFApiServer::start() {
 void SMFApiServer::shutdown() {
   m_httpEndpoint->shutdown();
 }
-
-/*
- int main() {
- #ifdef __linux__
- std::vector<int> sigs{SIGQUIT, SIGINT, SIGTERM, SIGHUP};
- setUpUnixSignals(sigs);
- #endif
-
- Pistache::Address addr(Pistache::Ipv4::any(), Pistache::Port(8080));
- SMFApiServer smfApiServer(addr);
- smfApiServer.init(2);
- smfApiServer.start();
- smfApiServer.shutdown();
-
- }
- */

src/api-server/smf-api-server.h

@@ -31,6 +31,9 @@
  *      contact@openairinterface.org
  */
 
+#ifndef FILE_SMF_API_SERVER_SEEN
+#define FILE_SMF_API_SERVER_SEEN
+
 #include "pistache/endpoint.h"
 #include "pistache/http.h"
 #include "pistache/router.h"
@@ -63,7 +66,6 @@ class SMFApiServer {
     m_smContextsCollectionApiImpl =
         std::make_shared<SMContextsCollectionApiImpl>(m_router, smf_app_inst,
                                                       m_address);
-
   }
   void init(size_t thr = 1);
   void start();
@@ -77,6 +79,6 @@ class SMFApiServer {
   std::shared_ptr<PDUSessionsCollectionApiImpl> m_pduSessionsCollectionApiImpl;
   std::shared_ptr<SMContextsCollectionApiImpl> m_smContextsCollectionApiImpl;
   std::string m_address;
-
 };
 
+#endif

src/api-server/smf-http2-server.h

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You under
+ * the OAI Public License, Version 1.1  (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.openairinterface.org/?page_id=698
+ *
+ * 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.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+#ifndef FILE_SMF_HTTP2_SERVER_SEEN
+#define FILE_SMF_HTTP2_SERVER_SEEN
+
+#include "smf_app.hpp"
+#include <nghttp2/asio_http2_server.h>
+#include "SmContextUpdateMessage.h"
+#include "SmContextMessage.h"
+#include "SmContextReleaseData.h"
+#include "uint_generator.hpp"
+#include "smf.h"
+
+using namespace nghttp2::asio_http2;
+using namespace nghttp2::asio_http2::server;
+using namespace oai::smf_server::model;
+
+class smf_http2_server {
+ public:
+  smf_http2_server(std::string addr, uint32_t port, smf::smf_app *smf_app_inst)
+      :
+      m_address(addr),
+      m_port(port),
+      server(),
+      m_smf_app(smf_app_inst) {
+  }
+  void start();
+  void init(size_t thr) {
+  }
+  void create_sm_contexts_handler(const SmContextMessage &smContextMessage,
+                                  const response &response);
+  void update_sm_context_handler(
+      const std::string &smf_ref,
+      const SmContextUpdateMessage &smContextUpdateMessage,
+      const response &response);
+
+  void release_sm_context_handler(
+      const std::string &smf_ref,
+      const SmContextReleaseData &smContextReleaseData,
+      const response &response);
+
+ private:
+  util::uint_generator<uint32_t> m_promise_id_generator;
+  std::string m_address;
+  uint32_t m_port;
+  http2 server;
+  smf::smf_app *m_smf_app;
+
+ protected:
+  static uint64_t generate_promise_id() {
+    return util::uint_uid_generator<uint64_t>::get_instance().get_uid();
+  }
+};
+
+#endif

src/common/utils/simple_parser.hpp → src/common/3gpp_29.500.h

@@ -19,30 +19,40 @@
  *      contact@openairinterface.org
  */
 
-/*! \file simple_parser.hpp
- \brief
- \author
- \company Eurecom
- \email:
- */
-#ifndef FILE_SIMPLE_PARSER_HPP_SEEN
-#define FILE_SIMPLE_PARSER_HPP_SEEN
-# include <string>
-#include <map>
-#include <vector>
+#ifndef FILE_3GPP_29_500_SMF_SEEN
+#define FILE_3GPP_29_500_SMF_SEEN
 
-typedef struct mime_part {
-  std::string content_type;
-  std::string body;
-} mime_part;
+enum http_status_code_e {
+  HTTP_STATUS_CODE_100_CONTINUE = 100,
+  HTTP_STATUS_CODE_200_OK =200,
+  HTTP_STATUS_CODE_201_CREATED = 201,
+  HTTP_STATUS_CODE_202_ACCEPTED = 202,
+  HTTP_STATUS_CODE_204_NO_CONTENT = 204,
+  HTTP_STATUS_CODE_300_MULTIPLE_CHOICES = 300,
+  HTTP_STATUS_CODE_303_SEE_OTHER = 303,
+  HTTP_STATUS_CODE_307_TEMPORARY_REDIRECT = 307,
+  HTTP_STATUS_CODE_308_PERMANENT_REDIRECT =308,
+  HTTP_STATUS_CODE_400_BAD_REQUEST = 400,
+  HTTP_STATUS_CODE_401_UNAUTHORIZED = 401,
+  HTTP_STATUS_CODE_403_FORBIDDEN = 403,
+  HTTP_STATUS_CODE_404_NOT_FOUND = 404,
+  HTTP_STATUS_CODE_405_METHOD_NOT_ALLOWED = 405,
+  HTTP_STATUS_CODE_406_NOT_ACCEPTABLE = 406,
+  HTTP_STATUS_CODE_408_REQUEST_TIMEOUT = 408,
+  HTTP_STATUS_CODE_409_CONFLICT = 409,
+  HTTP_STATUS_CODE_410_GONE = 410,
+  HTTP_STATUS_CODE_411_LENGTH_REQUIRED = 411,
+  HTTP_STATUS_CODE_412_PRECONDITION_FAILED = 412,
+  HTTP_STATUS_CODE_413_PAYLOAD_TOO_LARGE = 413,
+  HTTP_STATUS_CODE_414_URI_TOO_LONG = 414,
+  HTTP_STATUS_CODE_415_UNSUPPORTED_MEDIA_TYPE_NA = 415,
+  HTTP_STATUS_CODE_429_TOO_MANY_REQUESTS = 429,
+  HTTP_STATUS_CODE_500_INTERNAL_SERVER_ERROR = 500,
+  HTTP_STATUS_CODE_501_NOT_IMPLEMENTED = 501,
+  HTTP_STATUS_CODE_503_SERVICE_UNAVAILABLE = 503,
+  HTTP_STATUS_CODE_504_GATEWAY_TIMEOUT = 504
+};
 
-class simple_parser {
- public:
-  bool parse(const std::string &str);
-  void get_mime_parts(std::vector<mime_part> &parts) const;
- private:
-  std::vector<mime_part> mime_parts;
+#endif
 
-};
 
-#endif /* FILE_SIMPLE_PARSER_HPP_SEEN */

src/common/msg/itti_msg_nx.hpp

@@ -60,26 +60,31 @@ class itti_nx_trigger_pdu_session_modification : public itti_nx_msg {
   itti_nx_trigger_pdu_session_modification(const task_id_t orig,
                                            const task_id_t dest)
       :
-      itti_nx_msg(NX_TRIGGER_SESSION_MODIFICATION, orig, dest) {
+      itti_nx_msg(NX_TRIGGER_SESSION_MODIFICATION, orig, dest),
+      msg(),
+      http_version() {
   }
   itti_nx_trigger_pdu_session_modification(
       const itti_nx_trigger_pdu_session_modification &i)
       :
       itti_nx_msg(i),
-      msg(i.msg) {
+      msg(i.msg),
+      http_version(i.http_version) {
   }
   itti_nx_trigger_pdu_session_modification(
       const itti_nx_trigger_pdu_session_modification &i, const task_id_t orig,
       const task_id_t dest)
       :
       itti_nx_msg(i, orig, dest),
-      msg() {
+      msg(),
+      http_version(i.http_version) {
   }
   const char* get_msg_name() {
     return "NX_TRIGGER_PDU_SESSION_MODIFICATION";
   }
   ;
   smf::pdu_session_modification_network_requested msg;
+  uint8_t http_version;
 };
 
 #endif /* ITTI_MSG_NX_HPP_INCLUDED_ */

src/common/nas/3gpp_24.007.h

@@ -24,21 +24,21 @@
 #include <stdint.h>
 
 typedef enum extended_protocol_discriminator_e {
-  /* Protocol discriminator identifier for 5G Session Management */
+  // Protocol discriminator identifier for 5G Session Management
   EPD_5GS_SESSION_MANAGEMENT_MESSAGES = 0x2e,
-  /* Protocol discriminator identifier for 5G Mobility Management */
+  // Protocol discriminator identifier for 5G Mobility Management
   EPD_5GS_MOBILITY_MANAGEMENT_MESSAGES = 0x7e,
 
 } extended_protocol_discriminator_t;
 
-/* Procedure transaction identity */
+// Procedure transaction identity
 //8 bits
 #define PROCEDURE_TRANSACTION_IDENTITY_UNASSIGNED   (uint8_t)0
 #define PROCEDURE_TRANSACTION_IDENTITY_FIRST        (uint8_t)1
 #define PROCEDURE_TRANSACTION_IDENTITY_LAST         (uint8_t)254
 #define PROCEDURE_TRANSACTION_IDENTITY_RESERVED     (uint8_t)255
 
-/* PDU Session Identity */
+// PDU Session Identity
 typedef uint8_t pdu_session_id_t;
 
 //8 bits
@@ -46,31 +46,17 @@ typedef uint8_t pdu_session_id_t;
 #define PDU_SESSION_IDENTITY_FIRST        (uint8_t)1
 #define PDU_SESSION_IDENTITY_LAST         (uint8_t)15
 
-/* QFI */
+// QFI
 // type: integer,  minimum: 0, maximum: 63
 #define NO_QOS_FLOW_IDENTIFIER_ASSIGNED (uint8_t)0
 #define QOS_FLOW_IDENTIFIER_FIRST        (uint8_t)1
 #define QOS_FLOW_IDENTIFIER_LAST         (uint8_t)63
 
-/*
- //TODO: QFI defined in 3gpp_29.274.h
- typedef struct smf_qfi_s {
- uint8_t qfi;
- smf_qfi_s() : qfi(QOS_FLOW_IDENTIFIER_FIRST) {}
- smf_qfi_s(const uint8_t& q) : qfi(q) {}
- smf_qfi_s(const struct smf_qfi_s& q) : qfi(q.qfi) {}
-
- inline bool operator==(const struct smf_qfi_s& rhs) const { return qfi == rhs.qfi; }
- inline bool operator!=(const struct smf_qfi_s& rhs) const { return !(qfi == rhs.qfi); }
- } smf_qfi_t;
- */
-
 //QoS Rule
 #define NO_QOS_RULE_IDENTIFIER_ASSIGNED (uint8_t)0
 #define QOS_RULE_IDENTIFIER_FIRST        (uint8_t)1
 #define QOS_RULE_IDENTIFIER_LAST         (uint8_t)255
 
-
 // Integrity protection maximum data rate
 typedef struct ipmdr_s {
   uint8_t ul;

src/common/nas/security_types.h

@@ -38,10 +38,6 @@
 #include <stdint.h>
 #include <inttypes.h>
 
-#if 0
-#include "queue.h"
-#endif
-
 #ifndef FILE_SECURITY_TYPES_SEEN
 #define FILE_SECURITY_TYPES_SEEN
 

src/common/smf.h

@@ -171,15 +171,6 @@ typedef struct qos_profile_s {
   } parameter;
 } qos_profile_t;
 
-enum class multipart_related_content_part_e {
-  JSON = 0,
-  NAS = 1,
-  NGAP = 2
-};
-
-static const std::vector<std::string> multipart_related_content_part_e2str = {
-    "JSON", "NAS", "NGAP" };
-
 #define NAMF_COMMUNICATION_N1N2_MESSAGE_TRANSFER_URL  "/namf-comm/v2/ue-contexts/{}/n1-n2-messages" //may get from configuration file
 #define NUDM_SDM_GET_SM_DATA_URL                      "/nudm-sdm/v2/{}/sm-data"                     //may get from configuration file
 #define N1_SM_CONTENT_ID                              "n1SmMsg"

src/common/utils/CMakeLists.txt

@@ -36,7 +36,7 @@ set(CN_UTILS_SRC STATIC
     ${CMAKE_CURRENT_SOURCE_DIR}/pid_file.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/string.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/thread_sched.cpp
-    ${CMAKE_CURRENT_SOURCE_DIR}/simple_parser.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/mime_parser.cpp
     )
 
 

src/common/utils/simple_parser.cpp → src/common/utils/mime_parser.cpp

@@ -13,14 +13,13 @@
  * limitations under the License.
  */
 
-#include "simple_parser.hpp"
+#include "mime_parser.hpp"
 #include "logger.hpp"
+#include "conversions.hpp"
 
-bool simple_parser::parse(const std::string &str) {
+bool mime_parser::parse(const std::string &str) {
   std::string CRLF = "\r\n";
-  Logger::smf_app().debug("");
-  Logger::smf_app().debug("Simple parser, parsing a string:");
-  Logger::smf_app().debug("%s", str.c_str());
+  Logger::smf_app().debug("Parsing the message with Simple Parser");
 
   //find boundary
   std::size_t content_type_pos = str.find("Content-Type");  //first part
@@ -61,9 +60,99 @@ bool simple_parser::parse(const std::string &str) {
   return true;
 }
 
-void simple_parser::get_mime_parts(std::vector<mime_part> &parts) const {
+void mime_parser::get_mime_parts(std::vector<mime_part> &parts) const {
   for (auto it : mime_parts) {
     parts.push_back(it);
   }
 
 }
+
+
+//---------------------------------------------------------------------------------------------
+unsigned char* mime_parser::format_string_as_hex(const std::string &str) {
+  unsigned int str_len = str.length();
+  char *data = (char*) malloc(str_len + 1);
+  memset(data, 0, str_len + 1);
+  memcpy((void*) data, (void*) str.c_str(), str_len);
+
+  unsigned char *data_hex = (uint8_t*) malloc(str_len / 2 + 1);
+  conv::ascii_to_hex(data_hex, (const char*) data);
+
+  Logger::smf_app().debug("[Format string as Hex] Input string (%d bytes): %s ",
+                          str_len, str.c_str());
+  Logger::smf_app().debug("Data (formatted):");
+#if DEBUG_IS_ON
+  for (int i = 0; i < str_len / 2; i++)
+    printf(" %02x ", data_hex[i]);
+  printf("\n");
+#endif
+  //free memory
+  //free_wrapper((void**) &data);
+  free(data);
+  data = NULL;
+
+  return data_hex;
+}
+
+//------------------------------------------------------------------------------
+void mime_parser::create_multipart_related_content(std::string &body,
+                                               const std::string &json_part,
+                                               const std::string boundary,
+                                               const std::string &n1_message,
+                                               const std::string &n2_message) {
+
+  //format string as hex
+  unsigned char *n1_msg_hex = format_string_as_hex(n1_message);
+  unsigned char *n2_msg_hex = format_string_as_hex(n2_message);
+
+  std::string CRLF = "\r\n";
+  body.append("--" + boundary + CRLF);
+  body.append("Content-Type: application/json" + CRLF);
+  body.append(CRLF);
+  body.append(json_part + CRLF);
+
+  body.append("--" + boundary + CRLF);
+  body.append(
+      "Content-Type: application/vnd.3gpp.5gnas" + CRLF + "Content-Id: n1SmMsg"
+          + CRLF);
+  body.append(CRLF);
+  body.append(std::string((char*) n1_msg_hex, n1_message.length() / 2) + CRLF);
+  body.append("--" + boundary + CRLF);
+  body.append(
+      "Content-Type: application/vnd.3gpp.ngap" + CRLF + "Content-Id: n2SmMsg"
+          + CRLF);
+  body.append(CRLF);
+  body.append(std::string((char*) n2_msg_hex, n2_message.length() / 2) + CRLF);
+  body.append("--" + boundary + "--" + CRLF);
+}
+
+//------------------------------------------------------------------------------
+void mime_parser::create_multipart_related_content(
+    std::string &body, const std::string &json_part, const std::string boundary,
+    const std::string &message, const multipart_related_content_part_e content_type) {
+
+  //format string as hex
+  unsigned char *msg_hex = format_string_as_hex(message);
+
+  std::string CRLF = "\r\n";
+  body.append("--" + boundary + CRLF);
+  body.append("Content-Type: application/json" + CRLF);
+  body.append(CRLF);
+  body.append(json_part + CRLF);
+
+  body.append("--" + boundary + CRLF);
+  if (content_type == multipart_related_content_part_e::NAS) {  //NAS
+    body.append(
+        "Content-Type: application/vnd.3gpp.5gnas" + CRLF
+            + "Content-Id: n1SmMsg" + CRLF);
+  } else if (content_type == multipart_related_content_part_e::NGAP) {  //NGAP
+    body.append(
+        "Content-Type: application/vnd.3gpp.ngap" + CRLF + "Content-Id: n2SmMsg"
+            + CRLF);
+  }
+  body.append(CRLF);
+  body.append(std::string((char*) msg_hex, message.length() / 2) + CRLF);
+  body.append("--" + boundary + "--" + CRLF);
+}
+
+

src/common/utils/mime_parser.hpp

+/*
+ * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The OpenAirInterface Software Alliance licenses this file to You 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.
+ *-------------------------------------------------------------------------------
+ * For more information about the OpenAirInterface (OAI) Software Alliance:
+ *      contact@openairinterface.org
+ */
+
+/*! \file mime_parser.hpp
+ \brief
+ \author
+ \company Eurecom
+ \email:
+ */
+#ifndef FILE_MIME_PARSER_HPP_SEEN
+#define FILE_MIME_PARSER_HPP_SEEN
+# include <string>
+#include <map>
+#include <vector>
+
+enum class multipart_related_content_part_e {
+  JSON = 0,
+  NAS = 1,
+  NGAP = 2
+};
+
+static const std::vector<std::string> multipart_related_content_part_e2str = {
+    "JSON", "NAS", "NGAP" };
+
+typedef struct mime_part {
+  std::string content_type;
+  std::string body;
+} mime_part;
+
+class mime_parser {
+ public:
+
+  /*
+   * Parse the input string into different Mime parts
+   * @param [const std::string &] str: input string
+   * @return void
+   */
+  bool parse(const std::string &str);
+
+  /*
+   * Get vector of Mime parts
+   * @param [std::vector<mime_part> &] parts: store vector of Mime parts
+   * @return void
+   */
+  void get_mime_parts(std::vector<mime_part> &parts) const;
+
+  /*
+   * Represent a string as hex
+   * @param [const std::string&] str: input string
+   * @return String represents string in hex format
+   */
+  unsigned char* format_string_as_hex(const std::string &str);
+
+  /*
+   * Create HTTP body content for multipart/related message
+   * @param [std::string] body: Body of the created message
+   * @param [std::string] json_part: Json part of multipart/related msg
+   * @param [std::string] boundary: Boundary of multipart/related msg
+   * @param [std::string] n1_message: N1 (NAS) part
+   * @param [std::string] n2_message: N2 (NGAP) part
+   * @return void
+   */
+  void create_multipart_related_content(std::string &body,
+                                        const std::string &json_part,
+                                        const std::string boundary,
+                                        const std::string &n1_message,
+                                        const std::string &n2_message);
+
+  /*
+   * Create HTTP body content for multipart/related message
+   * @param [std::string] body: Body of the created message
+   * @param [std::string] json_part: Json part of multipart/related msg
+   * @param [std::string] boundary: Boundary of multipart/related msg
+   * @param [std::string] message: N1 (NAS) or N2 (NGAP) part
+   * @param [uint8_t] content_type: 1 for NAS content, else NGAP content
+   * @return void
+   */
+  void create_multipart_related_content(
+      std::string &body, const std::string &json_part,
+      const std::string boundary, const std::string &message,
+      const multipart_related_content_part_e content_type);
+
+ private:
+  std::vector<mime_part> mime_parts;
+
+};
+
+#endif /* FILE_MIME_PARSER_HPP_SEEN */

src/itti/itti_msg.hpp

@@ -111,7 +111,6 @@ typedef enum {
   N11_SESSION_CREATE_SM_CONTEXT_RESPONSE,
   N11_SESSION_UPDATE_SM_CONTEXT_REQUEST,
   N11_SESSION_UPDATE_SM_CONTEXT_RESPONSE,
-  N11_SESSION_MODIFICATION_REQUEST_SMF_REQUESTED,
   N11_SESSION_UPDATE_PDU_SESSION_STATUS,
   N11_SESSION_N1N2_MESSAGE_TRANSFER_RESPONSE_STATUS,
   N11_SESSION_RELEASE_SM_CONTEXT_REQUEST,

src/oai_smf/CMakeLists.txt

@@ -253,8 +253,7 @@ pkg_search_module(CONFIG REQUIRED libconfig++)
 include_directories(${CONFIG_INCLUDE_DIRS})
 
 set(THREADS_PREFER_PTHREAD_FLAG ON)
-find_package(Threads REQUIRED)
-
+#find_package(Threads REQUIRED)
 
 ################################################################
 # Add sub modules
@@ -277,11 +276,11 @@ ADD_SUBDIRECTORY(${CMAKE_CURRENT_SOURCE_DIR}/../../src/api-server ${CMAKE_CURREN
 
 ################################################################################
 # Specific part for oai_smf folder
-
 #SMF_API
 set(SMF_API_SERVER_DIR "${SRC_TOP_DIR}/api-server")
   
 file(GLOB SMF_API_SERVER_src_files
+    ${SMF_API_SERVER_DIR}/smf-http2-server.cpp
     ${SMF_API_SERVER_DIR}/smf-api-server.cpp
     ${SMF_API_SERVER_DIR}/model/*.cpp
     ${SMF_API_SERVER_DIR}/api/*.cpp
@@ -379,5 +378,6 @@ IF(STATIC_LINKING)
 ENDIF(STATIC_LINKING)
    
 
-target_link_libraries (smf ${ASAN} -Wl,--start-group CN_UTILS SMF UDP GTPV2C PFCP 3GPP_COMMON_TYPES SMF_API -lnettle ${NETTLE_LIBRARIES} ${CRYPTO_LIBRARIES} NAS gflags glog dl double-conversion folly -Wl,--end-group pthread m rt config++ event boost_system pistache curl)
+target_link_libraries (smf ${ASAN} 
+    -Wl,--start-group CN_UTILS SMF UDP GTPV2C PFCP 3GPP_COMMON_TYPES SMF_API -lnettle ${NETTLE_LIBRARIES} ${CRYPTO_LIBRARIES}  -lnghttp2_asio -lboost_system  -lboost_thread -lssl -lcrypto  NAS gflags glog dl double-conversion folly -Wl,--end-group pthread m rt config++ event boost_system pistache curl)
     
\ No newline at end of file

src/oai_smf/main.cpp

@@ -27,6 +27,7 @@
 #include "pistache/endpoint.h"
 #include "pistache/http.h"
 #include "pistache/router.h"
+#include "smf-http2-server.h"
 
 #include <iostream>
 #include <thread>
@@ -121,13 +122,16 @@ int main(int argc, char **argv)
     exit (-EDEADLK);
   }
 
-
-  //SMF API server
+  //SMF Pistache API server (HTTP1)
   Pistache::Address addr(std::string(inet_ntoa (*((struct in_addr *)&smf_cfg.sbi.addr4))) , Pistache::Port(smf_cfg.sbi.port));
   SMFApiServer smfApiServer(addr, smf_app_inst);
   smfApiServer.init(2);
   std::thread smf_api_manager(&SMFApiServer::start, smfApiServer);
 
+  //SMF NGHTTP API server (HTTP2)
+  smf_http2_server *smf_server = new smf_http2_server(conv::toString(smf_cfg.sbi.addr4), smf_cfg.sbi_http2_port, smf_app_inst);
+  std::thread smf_api(&smf_http2_server::start, smf_server);
+
   FILE *fp = NULL;
   std::string filename = fmt::format("/tmp/smf_{}.status", getpid());
   fp = fopen(filename.c_str(), "w+");

src/smf_app/smf_app.hpp

@@ -35,6 +35,7 @@
 #include <shared_mutex>
 #include <string>
 #include <thread>
+#include <future>
 
 #include "pistache/endpoint.h"
 #include "pistache/http.h"
@@ -52,6 +53,10 @@
 #include "SmContextCreateError.h"
 #include "SmContextUpdateError.h"
 
+#define BOOST_THREAD_PROVIDES_FUTURE
+#include <boost/thread.hpp>
+#include <boost/thread/future.hpp>
+
 namespace smf {
 
 #define TASK_SMF_APP_TRIGGER_T3591     (0)
@@ -113,6 +118,13 @@ class smf_app {
 
   std::map<scid_t, std::shared_ptr<smf_context_ref>> scid2smf_context;
   mutable std::shared_mutex m_scid2smf_context;
+  //Store promise IDs for Create/Update session
+  std::map<uint32_t,
+      boost::shared_ptr<boost::promise<pdu_session_create_sm_context_response>>> sm_context_create_promises;
+  std::map<uint32_t,
+      boost::shared_ptr<boost::promise<pdu_session_update_sm_context_response>>> sm_context_update_promises;
+  std::map<uint32_t,
+      boost::shared_ptr<boost::promise<pdu_session_release_sm_context_response>>> sm_context_release_promises;
 
   /*
    * Apply the config from the configuration file for DNN pools
@@ -285,6 +297,27 @@ class smf_app {
    */
   void handle_itti_msg(itti_n11_update_pdu_session_status &snu);
 
+  /*
+   * Handle ITTI message N11 Create SM Context Response to trigger the response to AMF
+   * @param [itti_n11_create_sm_context_response&] snc
+   * @return void
+   */
+  void handle_itti_msg(itti_n11_create_sm_context_response &snc);
+
+  /*
+   * Handle ITTI message N11 Update SM Context Response to trigger the response to AMF
+   * @param [itti_n11_update_sm_context_response&] m
+   * @return void
+   */
+  void handle_itti_msg(itti_n11_update_sm_context_response &m);
+
+  /*
+   * Handle ITTI message N11 Release SM Context Response to trigger the response to AMF
+   * @param [itti_n11_release_sm_context_response&] m
+   * @return void
+   */
+  void handle_itti_msg(itti_n11_release_sm_context_response &m);
+
   /*
    * Handle ITTI message from N11 (N1N2MessageTransfer Response)
    * @param [itti_n11_n1n2_message_transfer_response_status&] snm
@@ -381,7 +414,6 @@ class smf_app {
    */
   void handle_pdu_session_update_sm_context_request(
       std::shared_ptr<itti_n11_update_sm_context_request> smreq);
-
   /*
    * Handle PDUSession_ReleaseSMContextRequest from AMF
    * @param [std::shared_ptr<itti_n11_release_sm_context_request>&] Request message
@@ -399,9 +431,12 @@ class smf_app {
    * @param [const pfcp::qfi_t &] qfi
    * @return void
    */
-  void trigger_pdu_session_modification(const supi_t &supi, const std::string &dnn,
+  void trigger_pdu_session_modification(const supi_t &supi,
+                                        const std::string &dnn,
                                         const pdu_session_id_t pdu_session_id,
-                                        const snssai_t &snssai, const pfcp::qfi_t &qfi);
+                                        const snssai_t &snssai,
+                                        const pfcp::qfi_t &qfi,
+                                        const uint8_t &http_version);
 
   /*
    * Verify if SM Context is existed for this Supi
@@ -494,7 +529,8 @@ class smf_app {
    * @param [const std::string] n2_info_type
    * @return representing of N2 info type in a form of emum
    */
-  n2_sm_info_type_e n2_sm_info_type_str2e(const std::string &n2_info_type) const;
+  n2_sm_info_type_e n2_sm_info_type_str2e(
+      const std::string &n2_info_type) const;
 
   /*
    * Update PDU session UpCnxState
@@ -520,6 +556,83 @@ class smf_app {
    */
   void start_upf_association(const pfcp::node_id_t &node_id);
 
+  /*
+   * To store a promise of a PDU Session Create SM Contex Response to be triggered when the result is ready
+   * @param [uint32_t] id: promise id
+   * @param [boost::shared_ptr< boost::promise<pdu_session_create_sm_context_response> >&] p: pointer to the promise
+   * @return void
+   */
+  void add_promise(
+      uint32_t id,
+      boost::shared_ptr<boost::promise<pdu_session_create_sm_context_response> > &p);
+
+  /*
+   * To store a promise of a PDU Session Update SM Contex Response to be triggered when the result is ready
+   * @param [uint32_t] id: promise id
+   * @param [boost::shared_ptr< boost::promise<pdu_session_update_sm_context_response> >&] p: pointer to the promise
+   * @return void
+   */
+  void add_promise(
+      uint32_t id,
+      boost::shared_ptr<boost::promise<pdu_session_update_sm_context_response> > &p);
+
+  /*
+   * To store a promise of a PDU Session Release SM Context Response to be triggered when the result is ready
+   * @param [uint32_t] id: promise id
+   * @param [boost::shared_ptr< boost::promise<pdu_session_release_sm_context_response> >&] p: pointer to the promise
+   * @return void
+   */
+  void add_promise(
+      uint32_t id,
+      boost::shared_ptr<boost::promise<pdu_session_release_sm_context_response> > &p);
+
+  /*
+   * To trigger the response to the HTTP server by set the value of the corresponding promise to ready
+   * @param [const uint32_t &] http_code: Status code of HTTP response
+   * @param [const oai::smf_server::model::SmContextCreateError &] smContextCreateError: store the json content of response message
+   * @param [const std::string &] n1_sm_msg: N1 SM message
+   * @param [uint32_t &] promise_id: Promise Id
+   * @return void
+   */
+  void trigger_http_response(
+      const uint32_t &http_code,
+      const oai::smf_server::model::SmContextCreateError &smContextCreateError,
+      const std::string &n1_sm_msg, uint32_t &promise_id);
+
+  /*
+   * To trigger the response to the HTTP server by set the value of the corresponding promise to ready
+   * @param [const uint32_t &] http_code: Status code of HTTP response
+   * @param [const oai::smf_server::model::SmContextCreateError &] smContextCreateError: store the json content of response message
+   * @param [uint32_t &] promise_id: Promise Id
+   * @return void
+   */
+  void trigger_http_response(
+      const uint32_t &http_code,
+      const oai::smf_server::model::SmContextUpdateError &smContextUpdateError,
+      uint32_t &promise_id);
+
+  /*
+   * To trigger the response to the HTTP server by set the value of the corresponding promise to ready
+   * @param [const uint32_t &] http_code: Status code of HTTP response
+   * @param [const oai::smf_server::model::SmContextUpdateError &] smContextUpdateError: store the json content of response message
+   * @param [const std::string &] n1_sm_msg: N1 SM message
+   * @param [uint32_t &] promise_id: Promise Id
+   * @return void
+   */
+  void trigger_http_response(
+      const uint32_t &http_code,
+      const oai::smf_server::model::SmContextUpdateError &smContextUpdateError,
+      const std::string &n1_sm_msg, uint32_t &promise_id);
+
+  /*
+   * To trigger the response to the HTTP server by set the value of the corresponding promise to ready
+   * @param [const uint32_t &] http_code: Status code of HTTP response
+   * @param [uint32_t &] promise_id: Promise Id
+   * @param [uint8_t] msg_type
+   * @return void
+   */
+  void trigger_http_response(const uint32_t &http_code, uint32_t &promise_id,
+                             uint8_t msg_type);
 };
 }
 #include "smf_config.hpp"

src/smf_app/smf_config.cpp

@@ -307,6 +307,12 @@ int smf_config::load(const string &config_file) {
     const Setting &n11_cfg = nw_if_cfg[SMF_CONFIG_STRING_INTERFACE_SBI];
     load_interface(n11_cfg, sbi);
 
+    //HTTP2 port
+    if (!(n11_cfg.lookupValue(SMF_CONFIG_STRING_SBI_HTTP2_PORT, sbi_http2_port))) {
+      Logger::smf_app().error(SMF_CONFIG_STRING_SBI_HTTP2_PORT "failed");
+      throw(SMF_CONFIG_STRING_SBI_HTTP2_PORT "failed");
+    }
+
   } catch (const SettingNotFoundException &nfex) {
     Logger::smf_app().error("%s : %s", nfex.what(), nfex.getPath());
     return RETURNerror ;
@@ -673,6 +679,7 @@ void smf_config::display() {
   Logger::smf_app().info("    ip ...................: %s",
                          inet_ntoa(sbi.addr4));
   Logger::smf_app().info("    port .................: %d", sbi.port);
+  Logger::smf_app().info("    HTTP2 port ............: %d", sbi_http2_port);
 
   Logger::smf_app().info("- N4 Threading:");
   Logger::smf_app().info("    CPU id............: %d",

src/smf_app/smf_config.hpp

@@ -54,6 +54,7 @@
 #define SMF_CONFIG_STRING_PORT                                  "PORT"
 #define SMF_CONFIG_STRING_INTERFACE_N4                          "N4"
 #define SMF_CONFIG_STRING_INTERFACE_SBI                         "SBI"
+#define SMF_CONFIG_STRING_SBI_HTTP2_PORT                        "HTTP2_PORT"
 
 #define SMF_CONFIG_STRING_NAS_FORCE_PUSH_PCO                    "FORCE_PUSH_PROTOCOL_CONFIGURATION_OPTIONS"
 
@@ -175,6 +176,7 @@ class smf_config {
 
   interface_cfg_t n4;
   interface_cfg_t sbi;
+  unsigned int sbi_http2_port;
   itti_cfg_t itti;
   test_upf_cfg_t test_upf_cfg;
 

src/smf_app/smf_context.hpp

@@ -118,7 +118,9 @@ class smf_qos_flow {
 
 class smf_pdu_session : public std::enable_shared_from_this<smf_pdu_session> {
  public:
-  smf_pdu_session() {
+  smf_pdu_session()
+      :
+      m_pdu_session_mutex() {
     clear();
   }
 
@@ -137,6 +139,7 @@ class smf_pdu_session : public std::enable_shared_from_this<smf_pdu_session> {
     timer_T3590 = ITTI_INVALID_TIMER_ID;
     timer_T3591 = ITTI_INVALID_TIMER_ID;
     timer_T3592 = ITTI_INVALID_TIMER_ID;
+
   }
 
   smf_pdu_session(smf_pdu_session &b) = delete;
@@ -424,6 +427,9 @@ class smf_pdu_session : public std::enable_shared_from_this<smf_pdu_session> {
   uint8_t number_of_supported_packet_filters;  //number_of_supported_packet_filters
   util::uint_generator<uint32_t> qos_rule_id_generator;
 
+  // Recursive lock
+  mutable std::recursive_mutex m_pdu_session_mutex;
+
 };
 
 class session_management_subscription {
@@ -604,7 +610,6 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
    */
   void handle_pdu_session_create_sm_context_request(
       std::shared_ptr<itti_n11_create_sm_context_request> smreq);
-
   /*
    * Handle messages from AMF (e.g., PDU_SESSION_UpdateSMContextRequest)
    * @param [std::shared_ptr<itti_n11_update_sm_context_request] smreq Request message
@@ -670,7 +675,8 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
    * @param [const snssai_t&] snssai: single NSSAI
    *@return bool: Return true if a subscription data corresponding with dnn and snssai exist, otherwise return false
    */
-  bool is_dnn_snssai_subscription_data(const std::string &dnn, const snssai_t &snssai);
+  bool is_dnn_snssai_subscription_data(const std::string &dnn,
+                                       const snssai_t &snssai);
 
   /*
    * Find a session management subscription from a SMF context
@@ -747,7 +753,6 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
    */
   void set_supi_prefix(std::string const &value);
 
-
   /*
    * Get the default QoS Rule for all QFIs
    * @param [QOSRulesIE] qos_rule
@@ -809,7 +814,6 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
   scid_t scid;  //SM Context ID
   // Big recursive lock
   mutable std::recursive_mutex m_context;
-
 };
 }
 

src/smf_app/smf_n11.hpp

@@ -61,11 +61,11 @@ class smf_n11 {
 
   /*
    * Send N1N2 Message Transfer Request to AMF
-   * @param [std::shared_ptr<itti_nx_trigger_pdu_session_modification>] sm_context_res: Content of message to be sent
+   * @param [std::shared_ptr<itti_nx_trigger_pdu_session_modification>] sm_session_modification: Content of message to be sent
    * @return void
    */
   void send_n1n2_message_transfer_request(
-      std::shared_ptr<itti_nx_trigger_pdu_session_modification> sm_context_res);
+      std::shared_ptr<itti_nx_trigger_pdu_session_modification> sm_session_modification);
 
   /*
    * Send N1N2 Message Transfer Request to AMF
@@ -75,146 +75,6 @@ class smf_n11 {
   void send_n1n2_message_transfer_request(
       std::shared_ptr<itti_n11_session_report_request> report_msg);
 
-  /*
-   * Send update session response to AMF
-   * @param [std::shared_ptr<itti_n11_update_sm_context_response> sm_context_res] sm_context_res
-   * @return void
-   */
-  void send_pdu_session_update_sm_context_response(
-      std::shared_ptr<itti_n11_update_sm_context_response> sm_context_res);
-
-  /*
-   * Send N1N2 Message Transfer Request to AMF
-   * @param [std::shared_ptr<itti_n11_modify_session_request_smf_requested>] sm_context_mod: Content of message to be sent
-   * @return void
-   */
-  void send_n1n2_message_transfer_request(
-      std::shared_ptr<itti_n11_modify_session_request_smf_requested> sm_context_mod);
-
-  /*
-   * Send update session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [const oai::smf_server::model::SmContextUpdateError] SmContextUpdateError
-   * @param [Pistache::Http::Code] code, response code
-   * @return void
-   */
-  void send_pdu_session_update_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse,
-      const oai::smf_server::model::SmContextUpdateError &smContextUpdateError,
-      Pistache::Http::Code code);
-
-  /*
-   * Send Update session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [const oai::smf_server::model::SmContextUpdatedData] smContextUpdatedData
-   * @param [Pistache::Http::Code] code, response code
-   * @return void
-   */
-  void send_pdu_session_update_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse,
-      const oai::smf_server::model::SmContextUpdatedData &smContextUpdatedData,
-      Pistache::Http::Code code);
-
-  /*
-   * Send create session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [const oai::smf_server::model::SmContextCreateError] smContextCreateError
-   * @param [Pistache::Http::Code] code, response code
-   * @return void
-   */
-  void send_pdu_session_create_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse,
-      const oai::smf_server::model::SmContextCreateError &smContextCreateError,
-      Pistache::Http::Code code);
-
-  /*
-   * Send create session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [const oai::smf_server::model::SmContextCreateError] smContextCreateError
-   * @param [Pistache::Http::Code] code, response code
-   * @param [std::string] n1_sm_msg, N1 SM message content
-   * @return void
-   */
-  void send_pdu_session_create_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse,
-      const oai::smf_server::model::SmContextCreateError &smContextCreateError,
-      Pistache::Http::Code code, std::string &n1_sm_msg);
-
-  /*
-   * Send update session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [const oai::smf_server::model::SmContextUpdateError] smContextUpdateError
-   * @param [Pistache::Http::Code] code, response code
-   * @param [std::string] n1_sm_msg, N1 SM message content
-   * @return void
-   */
-  void send_pdu_session_update_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse,
-      const oai::smf_server::model::SmContextUpdateError &smContextUpdateError,
-      Pistache::Http::Code code, std::string &n1_sm_msg);
-
-  /*
-   * Send create session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [const oai::smf_server::model::SmContextCreatedData] smContextCreatedData
-   * @param [Pistache::Http::Code] code, response code
-   * @return void
-   */
-  void send_pdu_session_create_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse,
-      const oai::smf_server::model::SmContextCreatedData &smContextCreatedData,
-      Pistache::Http::Code code);
-
-  /*
-   * Send release session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [Pistache::Http::Code] code, response code
-   * @return void
-   */
-  void send_pdu_session_release_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse, Pistache::Http::Code code);
-
-  /*
-   * Send release session response to AMF
-   * @param [Pistache::Http::ResponseWriter] httpResponse
-   * @param [const oai::smf_server::model::ProblemDetails] problem
-   * @param [Pistache::Http::Code] code, response code
-   * @return void
-   */
-  void send_pdu_session_release_sm_context_response(
-      Pistache::Http::ResponseWriter &httpResponse,
-      const oai::smf_server::model::ProblemDetails &problem,
-      Pistache::Http::Code code);
-
-  /*
-   * Create HTTP body content for multipart/related message
-   * @param [std::string] body: Body of the created message
-   * @param [std::string] json_part: Json part of multipart/related msg
-   * @param [std::string] boundary: Boundary of multipart/related msg
-   * @param [std::string] n1_message: N1 (NAS) part
-   * @param [std::string] n2_message: N2 (NGAP) part
-   * @return void
-   */
-  void create_multipart_related_content(std::string &body,
-                                        const std::string &json_part,
-                                        const std::string boundary,
-                                        const std::string &n1_message,
-                                        const std::string &n2_message);
-
-  /*
-   * Create HTTP body content for multipart/related message
-   * @param [std::string] body: Body of the created message
-   * @param [std::string] json_part: Json part of multipart/related msg
-   * @param [std::string] boundary: Boundary of multipart/related msg
-   * @param [std::string] message: N1 (NAS) or N2 (NGAP) part
-   * @param [uint8_t] content_type: 1 for NAS content, else NGAP content
-   * @return void
-   */
-  void create_multipart_related_content(
-      std::string &body, const std::string &json_part, const std::string boundary,
-      const std::string &message, const multipart_related_content_part_e content_type);
-
 };
-
 }
 #endif /* FILE_SMF_N11_HPP_SEEN */

src/smf_app/smf_procedure.hpp

@@ -103,6 +103,7 @@ class n4_session_restore_procedure : public smf_procedure {
   std::set<pfcp::fseid_t> restored_sessions;
 };
 
+
 //------------------------------------------------------------------------------
 class session_create_sm_context_procedure : public smf_procedure {
  public:
@@ -143,6 +144,7 @@ class session_create_sm_context_procedure : public smf_procedure {
   std::shared_ptr<itti_n11_create_sm_context_response> n11_triggered_pending;
 };
 
+
 //------------------------------------------------------------------------------
 class session_update_sm_context_procedure : public smf_procedure {
  public: