#6030 (1) add close socket of CR at the exit of cwmp

Signed-off-by: Anis Ellouze <anis.ellouze@pivasoftware.com>

cwmp.c

@@ -518,6 +518,12 @@ void *thread_exit_program (void *v)
 	exit(EXIT_SUCCESS);
 }
 
+void signal_handler(int signal_num)
+{
+    close(cwmp_main.cr_socket_desc);
+    _exit(EXIT_SUCCESS);
+}
+
 int main(int argc, char **argv)
 {
 
@@ -528,6 +534,7 @@ int main(int argc, char **argv)
     pthread_t                       download_thread;
     pthread_t                       ubus_thread;
     pthread_t                       http_cr_server_thread;
+    struct sigaction                act = {0};
 
     if (error = cwmp_init(argc, argv, cwmp))
     {
@@ -548,6 +555,10 @@ int main(int argc, char **argv)
 
     http_server_init();
 
+    act.sa_handler = signal_handler;
+    sigaction(SIGINT,  &act, 0);
+    sigaction(SIGTERM, &act, 0);
+	
     error = pthread_create(&http_cr_server_thread, NULL, &thread_http_cr_server_listen, NULL);
     if (error<0)
     {

http.c

@@ -43,7 +43,6 @@
 #define OPAQUE "11733b200778ce33060f31c9af70a870ba96ddd4"
 
 static struct http_client http_c;
-static int cr_socket_desc;
 
 #ifdef HTTP_CURL
 static CURL *curl;
@@ -339,39 +338,47 @@ http_done:
 
 void http_server_init(void)
 {
-    struct sockaddr_in server;
-    int cr_port;
+    struct sockaddr_in server = {0};
+    unsigned short cr_port;
+    int reusaddr = 0;
 
     for(;;) {
-        cr_port = cwmp_main.conf.connection_request_port;
-        int i = (DEFAULT_CONNECTION_REQUEST_PORT == cr_port)? 1 : 0;
+        cr_port =  (unsigned short) (cwmp_main.conf.connection_request_port);
+        unsigned short i = (DEFAULT_CONNECTION_REQUEST_PORT == cr_port)? 1 : 0;
         //Create socket
-        cr_socket_desc = socket(AF_INET , SOCK_STREAM , 0);
-        if (cr_socket_desc == -1)
+        cwmp_main.cr_socket_desc = socket(AF_INET , SOCK_STREAM , 0);
+        if (cwmp_main.cr_socket_desc == -1)
         {
             CWMP_LOG (ERROR,"Could not open server socket for Connection Requests, Error no is : %d, Error description is : %s", errno, strerror(errno));
             sleep(1);
             continue;
         }
 
-        /* enable SO_REUSEADDR */
-        int reusaddr = 1;
-        if (setsockopt(cr_socket_desc, SOL_SOCKET, SO_REUSEADDR, &reusaddr, sizeof(int)) < 0) {
-            CWMP_LOG (WARNING,"setsockopt(SO_REUSEADDR) failed");
-        }
-
         //Prepare the sockaddr_in structure
         server.sin_family = AF_INET;
         server.sin_addr.s_addr = INADDR_ANY;
+		
         for(;;i++) {
             server.sin_port = htons(cr_port);
             //Bind
-            if( bind(cr_socket_desc,(struct sockaddr *)&server , sizeof(server)) < 0)
+            if( bind(cwmp_main.cr_socket_desc,(struct sockaddr *)&server , sizeof(server)) < 0)
             {
                 //print the error message
                 CWMP_LOG (ERROR,"Could not bind server socket on the port %d, Error no is : %d, Error description is : %s", cr_port, errno, strerror(errno));
-                cr_port = DEFAULT_CONNECTION_REQUEST_PORT + i;
-                CWMP_LOG (INFO,"Trying to use another connection request port: %d", cr_port);
+                if(!reusaddr)
+			    {
+				    reusaddr = 1;
+				    CWMP_LOG (INFO,"enable the socket option SO_REUSEADDR");
+				    if (setsockopt(cwmp_main.cr_socket_desc, SOL_SOCKET, SO_REUSEADDR, &reusaddr, sizeof(int)) < 0)
+				    {
+				        CWMP_LOG (WARNING,"setsockopt(SO_REUSEADDR) failed");
+				    }
+			    }
+			    else 
+			    {
+                    CWMP_LOG (INFO,"Trying to use another connection request port: %d", cr_port);
+				    cr_port = DEFAULT_CONNECTION_REQUEST_PORT + i;
+			    }
                 continue;
             }
             break;
@@ -387,7 +394,7 @@ void http_server_init(void)
 
 void http_server_listen(void)
 {
-    int client_sock , c , *new_sock;
+    int client_sock , c;
     static int cr_request = 0;
     static time_t restrict_start_time = 0;
     time_t current_time;
@@ -395,11 +402,11 @@ void http_server_listen(void)
     struct sockaddr_in client;
 
     //Listen
-    listen(cr_socket_desc , 3);
+    listen(cwmp_main.cr_socket_desc , 3);
 
     //Accept and incoming connection
     c = sizeof(struct sockaddr_in);
-    while( (client_sock = accept(cr_socket_desc, (struct sockaddr *)&client, (socklen_t*)&c)) )
+    while( (client_sock = accept(cwmp_main.cr_socket_desc, (struct sockaddr *)&client, (socklen_t*)&c)) )
     {
         current_time = time(NULL);
         service_available = true;

inc/cwmp.h

@@ -187,6 +187,7 @@ typedef struct cwmp {
     time_t              start_time;
     struct session_status session_status;
     unsigned int cwmp_id;
+    int cr_socket_desc;
 } cwmp;
 
 typedef struct session {

ubus.c

@@ -142,7 +142,8 @@ cwmp_handle_command(struct ubus_context *ctx, struct ubus_object *obj,
 		ubus_send_reply(ctx, req, b.head);
 
 		blob_buf_free(&b);
-
+		close(cwmp_main.cr_socket_desc);
+		CWMP_LOG(INFO,"Close connection request server socket");
 		error = pthread_create(&exit_thread, NULL, &thread_exit_program, NULL);
 		if (error<0)
 		{