edge amf->dege smf-> center amf->edge smf -> edge amf is ok

src/oai_smf/main.cpp

@@ -133,8 +133,8 @@ int main(int argc, char** argv) {
     exit(-EDEADLK);
   }
 
-  udp_server_coop udp_uplink_("10.103.239.31",20001);
-  udp_server_coop udp_downlink_("10.103.239.31",20004);
+  udp_server_coop udp_uplink_(inet_ntoa(smf_cfg.sbi.addr4),20001);
+  udp_server_coop udp_downlink_(inet_ntoa(smf_cfg.sbi.addr4),20004);
 
   // SMF Pistache API server (HTTP1)
   Pistache::Address addr(

src/udp/cooudp.cpp

@@ -67,7 +67,7 @@ udp_server_coop::udp_server_coop(const char* udp_address,uint16_t udp_port_num){
     cout<<"start create socket"<<endl;
     create_socket(udp_address,udp_port_num);
     cout<<"start receive"<<endl;
-    start_receive(udp_);
+    start_receive(udp_,udp_port_num);
 }
 
 udp_server_coop::~udp_server_coop(){}
@@ -91,62 +91,26 @@ int udp_server_coop::create_socket(const char* udp_address,uint16_t udp_port_num
     int r = bind(serverSocket,(struct sockaddr*)&sAddr,sizeof sAddr);
     if(-1 == r) printf("绑定失败:%m\n"),close(serverSocket),exit(-2);
     printf("绑定成功!\n"); 
-    return serverSocket;
-  // struct sockaddr_in addr = {};
-  // int sd                  = 0;
-
-  // /*
-  //  * Create UDP socket
-  //  */
-  // if ((sd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
-  //   /*
-  //    * Socket creation has failed...
-  //    */
-  //   printf("Socket creation failed (%s)\n", strerror(errno));
-  //   return errno;
-  // }
-
-  // addr.sin_family      = AF_INET;
-  // addr.sin_port        = htons(udp_port_num);
-  // addr.sin_addr.s_addr = inet_addr(udp_address);
-
-  // std::string ipv4 = udp_address;
-  // printf(
-  //     "Creating new listen socket on address %s and port %" PRIu16 " ",
-  //     ipv4.c_str(), udp_port_num);
-
-  // if (bind(sd, (struct sockaddr*) &addr, sizeof(struct sockaddr_in)) < 0) {
-  //   /*
-  //    * Bind failed
-  //    */
-  //   printf(
-  //       "Socket bind failed (%s) for address %s and port %" PRIu16 " \n",
-  //       strerror(errno), ipv4.c_str(), udp_port_num);
-  //   close(sd);
-  //   return errno;
-  // }
-  
-  
-  
-  
+    return serverSocket;  
 }
 
 
-void udp_server_coop::start_receive(udp_server_coop* udp){
+void udp_server_coop::start_receive(udp_server_coop* udp, uint16_t udp_port_num){
   udp_ = udp;
   //pthread_create(&udp_thread, NULL, udp_receiver_thread, (void*) this);
   //pthread_exit(NULL);
-  thread_ = std::thread(&udp_server_coop::udp_read_from_socket,this);
-  thread_.detach();
+  printf("绑定成功!5555 %d\n", udp_port_num); 
+  if(udp_port_num == 20001)
+  {
+    thread_ = std::thread(&udp_server_coop::udp_read_from_socket_to_center,this);
+    thread_.detach();
+  }
+  else{
+    thread_ = std::thread(&udp_server_coop::udp_read_from_socket_from_center,this);
+    thread_.detach();
+  }
 }
 
-// void* udp_server_coop::udp_receiver_thread(void* arg) {
-//   udp_server_coop* ptr = (udp_server_coop*) arg;
-//   //Logger::udp().info("Create pthread to receive udp message");
-//   ptr->udp_read_from_socket();
-  
-// }
-
 int udp_server_coop::getSocket(){
   return serverSocket;
 }
@@ -155,7 +119,7 @@ int udp_server_coop::getPpid(){
   return ppid;
 }
 
-int udp_server_coop::udp_read_from_socket() {
+int udp_server_coop::udp_read_from_socket_to_center() {
   //4.通信
     uint8_t udp_recv[UDP_RECV_BUFFER_SIZE];
     //bstring udp_recv;
@@ -178,7 +142,7 @@ int udp_server_coop::udp_read_from_socket() {
       //bytes_received = recvfrom(serverSocket, udp_recv, UDP_RECV_BUFFER_SIZE , 0, (struct sockaddr*)&r_endpoint.addr_storage, &r_endpoint.addr_storage_len);
       if(bytes_received > 0){
 
-        printf("smf receive udp success from amf\n");
+        printf("smf receive udp success from satellite amf\n");
         gettimeofday(&time, NULL);
         // std::cout<<"receive from plugin, ms: "<<(time.tv_sec*1000 + time.tv_usec/1000)<<std::endl;	
         // cout<<"bytes"<<bytes_received<<endl;	
@@ -187,7 +151,49 @@ int udp_server_coop::udp_read_from_socket() {
         // cout<<"content:"<<udp_recv_str<<endl;
         // handle_receive_udp(bytes_received,udp_recv);
         printf("smf send udp to center amf\n");
-        UdpSend(udp_recv,bytes_received,"10.103.238.72",20003);
+        UdpSend(udp_recv,bytes_received,"10.103.239.47",20003);
+
+        // assoc_id++;
+        // stream++;
+        //ngap_app("0",0).handle_receive(udp_recv_str,assoc_id,stream,0,0);
+      }
+    }
+  return 0;
+}
+
+int udp_server_coop::udp_read_from_socket_from_center() {
+  //4.通信
+    uint8_t udp_recv[UDP_RECV_BUFFER_SIZE];
+    //bstring udp_recv;
+    //struct sockaddr_in cAddr = {0};
+    //socklen_t len = sizeof(cAddr);
+    endpoint r_endpoint   = {};
+    //socklen_t addr_len;
+    int udp_len;
+    size_t bytes_received = 0;
+    cout<<"start receive"<<endl;
+    struct timeval time;
+  
+    while(1){
+      r_endpoint.addr_storage_len=sizeof(struct sockaddr_storage);
+      //如果还需要向客户端发送东西用recvfrom
+      //udp精髓  向一个协议地址簇发东西
+      //收消息
+      //r = recvfrom(serverSocket,udp_recv,udp_len,0,(struct sockaddr*)&cAddr,&len);
+      bytes_received = recvfrom(serverSocket, (void *)udp_recv, UDP_RECV_BUFFER_SIZE , 0, (struct sockaddr*)&r_endpoint.addr_storage, &r_endpoint.addr_storage_len);
+      //bytes_received = recvfrom(serverSocket, udp_recv, UDP_RECV_BUFFER_SIZE , 0, (struct sockaddr*)&r_endpoint.addr_storage, &r_endpoint.addr_storage_len);
+      if(bytes_received > 0){
+
+        printf("smf receive udp success from center amf\n");
+        gettimeofday(&time, NULL);
+        // std::cout<<"receive from plugin, ms: "<<(time.tv_sec*1000 + time.tv_usec/1000)<<std::endl;	
+        // cout<<"bytes"<<bytes_received<<endl;	
+        // cout<<"content:"<<udp_recv<<endl;
+        // string udp_recv_str(&udp_recv[0],&udp_recv[strlen(udp_recv)]);
+        // cout<<"content:"<<udp_recv_str<<endl;
+        // handle_receive_udp(bytes_received,udp_recv);
+        printf("smf send udp to satellite amf\n");
+        UdpSend(udp_recv,bytes_received,"10.103.239.31",20002);
 
         // assoc_id++;
         // stream++;

src/udp/cooudp.hpp

@@ -41,10 +41,11 @@ class udp_server_coop{
     udp_server_coop(const char* address,uint16_t port_num);
     virtual ~udp_server_coop();
     int create_socket(const char* address,uint16_t port_num);
-    void start_receive(udp_server_coop* udp);
+    void start_receive(udp_server_coop* udp, uint16_t udp_port_num);
     void handle_receive();
     static void* udp_receiver_thread(void* arg);
-    int udp_read_from_socket();
+    int udp_read_from_socket_from_center();
+    int udp_read_from_socket_to_center();
     void handle_receive_udp(int r,uint8_t udp_recv[]);
     int getSocket();
     int getPpid();