cw_process_elem is good now

FossilOrigin-Name: 71fd059171a96310ba664dfe7b34ea5940eaf7f57837751d443d5f4335f38b76

libcw.project

@@ -324,6 +324,7 @@
       <File Name="src/cw/cw_types_del_null.c"/>
       <File Name="src/cw/cw_type_bstr16.c"/>
       <File Name="src/cw/cw_process_element.c"/>
+      <File Name="src/cw/cw_result_is_ok.c"/>
     </VirtualDirectory>
   </VirtualDirectory>
   <Description/>

src/ac/wtpman.c

@@ -546,7 +546,7 @@ static void wtpman_run(void *arg)
 		}
 	}
 
-	if (!cw_rcok(rc)) {
+	if (!cw_result_is_ok(rc)) {
 		cw_dbg(DBG_INFO, "WTP Problem: %s", cw_strrc(rc));
 		wtpman_remove(wtpman);
 		return;

src/cw/capwap.h

@@ -637,7 +637,7 @@ extern struct cw_strlist_elem mbag_item_strings[];
 
 
 const char * cw_strerror(int rc);
-int cw_rcok(int rc);
+int cw_result_is_ok(int rc);
 const char *cw_strelemp_(cw_strheap_t h, int msg_id);
 
 

src/cw/capwap_inline.c

@@ -11,7 +11,7 @@ const char * cw_strerror(int rc) {
 	return cw_strresult(rc);
 }
 
-
+/*(
 
 int cw_rcok(int rc)
 {
@@ -20,7 +20,7 @@ int cw_rcok(int rc)
 	}
 	return 0;
 }
-
+*/
 
 /**
  *@defgroup CW CW 

src/cw/conn_process_packet.c

@@ -307,7 +307,8 @@ static int process_elements(struct conn *conn, uint8_t * rawmsg, int len,
 	
 	if (!message){
 		/* Message is unknown */
-		cw_dbg(DBG_MSG_ERR, "Message type %d (%s) unknown.",
+		cw_dbg(DBG_MSG_ERR, 
+			"Message type %d (%s) unrecognized, sending response.",
 			search.type, cw_strmsg(search.type),
 			cw_strstate(conn->capwap_state));
 		result_code = CAPWAP_RESULT_MSG_UNRECOGNIZED;
@@ -339,8 +340,8 @@ static int process_elements(struct conn *conn, uint8_t * rawmsg, int len,
 	if (!*i){
 		/* Message found, but it was in wrong state */
 		cw_dbg(DBG_MSG_ERR,
-		       "Message type %d (%s) not allowed in %s State.", search.type,
-		       cw_strmsg(search.type), cw_strstate(conn->capwap_state));
+		       "Message type %d (%s) not allowed in %s State, sending response.", 
+		       search.type,cw_strmsg(search.type), cw_strstate(conn->capwap_state));
 		result_code = CAPWAP_RESULT_MSG_INVALID_IN_CURRENT_STATE;
 		cw_send_error_response(conn, rawmsg, result_code);
 		errno = EAGAIN;
@@ -367,7 +368,7 @@ static int process_elements(struct conn *conn, uint8_t * rawmsg, int len,
 	/* Create an avltree to catch the found mandatory elements */
 	conn->mand = stravltree_create();
 
-	int unrecognized = 0;
+	
 
 	/* iterate through message elements */
 	cw_foreach_elem(elem, elems_ptr, elems_len) {
@@ -394,9 +395,15 @@ static int process_elements(struct conn *conn, uint8_t * rawmsg, int len,
 		params.from=from;
 		params.msgdata=message;
 		
-		result_code = cw_process_element(&params,0,0,elem_id,elem_data,elem_len); //elems_len-(elem-elems_ptr));
+		result_code = cw_process_element(&params,0,0,elem_id,elem_data,elem_len); 
 		
 
+		if (cw_result_is_ok(result_code))
+			continue;
+		
+		
+
+
 /*		
 		
 		elem_id = cw_get_elem_id(elem);
@@ -435,20 +442,6 @@ static int process_elements(struct conn *conn, uint8_t * rawmsg, int len,
 
 continue;
 exit(0);
-		
-		
-		as.elem_id = cw_get_elem_id(elem);
-	/*	int elem_len = cw_get_elem_len(elem);*/
-
-/*
-		//cw_elem_handler_t search_eh;
-		//memset(&search_eh,0,sizeof(search_eh));
-//		struct cw_ElemDef search_elem;
-//		search_elem.handler=&search_eh;
-
-//		search_eh.id = cw_get_elem_id(elem);
-*/
-
 
 		struct cw_ElemDef * elem;
 		
@@ -462,7 +455,7 @@ exit(0);
 		af = 0;
 
 		if (!af) {
-			unrecognized++;
+			//unrecognized++;
 			
 			
 /*			cw_dbg(DBG_ELEM_ERR,
@@ -530,7 +523,7 @@ exit(0);
 
 
 	//int result_code = 0;
-
+int unrecognized =3;
 
 
 	int rct = cw_in_check_generic(conn, afm, rawmsg, len, from);

src/cw/cw.h

@@ -456,6 +456,7 @@ uint8_t *cw_init_data_keep_alive_msg(uint8_t * buffer,uint8_t *rmac);
 int cw_out_radio_generic(struct conn *conn, struct cw_action_out *a, uint8_t * dst);
 int cw_put_elem_session_id(uint8_t *dst, uint8_t *session_id, int len);
 
+int cw_result_is_ok( int rc );
 
 /**
  * @}

src/cw/cw_in_check_generic_resp.c

@@ -17,7 +17,7 @@ int cw_in_check_generic_resp(struct conn *conn, struct cw_action_in *a, uint8_t
 	mbag_item_t * result = mbag_get(conn->incomming,CW_ITEM_RESULT_CODE);
 	
 	if  (result ) {
-		if (!cw_rcok(result->u2.dword)){
+		if (!cw_result_is_ok(result->u2.dword)){
 			return result->u2.dword;
 		}
 	}

src/cw/cw_in_check_join_resp.c

@@ -15,7 +15,7 @@ int cw_in_check_join_resp(struct conn *conn, struct cw_action_in *a, uint8_t * d
 
 	mbag_item_t * jresult = mbag_get(conn->incomming,CW_ITEM_RESULT_CODE);
 	if  (jresult ) {
-		if (!cw_rcok(jresult->u2.dword)){
+		if (!cw_result_is_ok(jresult->u2.dword)){
 			return jresult->u2.dword;
 		}
 	}

src/cw/cw_process_element.c

@@ -17,7 +17,8 @@ int cw_process_element(struct cw_ElemHandlerParams *params, int proto, int vendo
 	
 	struct cw_ElemHandler * handler;
 	struct cw_ElemData * elem_data, elem_data_search;
-
+	
+	/* try to retrieve a handler for this message element */
 	handler = cw_msgset_get_elemhandler(params->conn->msgset,0, 0, elem_id);
 	if (!handler) {
 		cw_dbg(DBG_ELEM_ERR, "Unrecognized message element: %d, ignoring", 
@@ -25,18 +26,32 @@ int cw_process_element(struct cw_ElemHandlerParams *params, int proto, int vendo
 		return CAPWAP_RESULT_UNRECOGNIZED_MESSAGE_ELEMENT;
 	}
 
+	/* check if this message element in the current message allowed */
 	elem_data_search.id=elem_id;
 	elem_data_search.proto=0;
 	elem_data_search.vendor=0;
-		
 	elem_data = mavl_find_ptr(params->msgdata->elements_tree,&elem_data_search);
-
 	if (!elem_data){
 		cw_dbg(DBG_ELEM_ERR, "Element %d - %s, not allowed here", 
 			elem_id, handler->name);
-		return 0;
+		return CAPWAP_RESULT_UNRECOGNIZED_MESSAGE_ELEMENT;
 	}
 
+	/* check the length of the message */
+	if (len < handler->min_len) {
+		cw_dbg(DBG_ELEM_ERR,
+		       "%d (%s) message element too short, len=%d, min len=%d",
+		       handler->id, handler->name, len,
+		       handler->min_len);
+		return -1;
+	}
+	if (len > handler->max_len && handler->max_len) {
+		cw_dbg(DBG_ELEM_ERR,
+		       "%d (%s) message element too big, len=%d, max len=%d", handler->id,
+		       handler->name, len, handler->max_len);
+		/* TODO XXX truncate the element instead of return */
+		return -1;
+	}
 
 	cw_dbg_elem(DBG_ELEM, params->conn, params->msgdata->type, handler, 
 				data,len);

src/cw/cw_result_is_ok.c

@@ -0,0 +1,8 @@
+#include "capwap.h"
+#include "cw.h"
+
+int cw_result_is_ok( int rc ) {
+	if(rc == CAPWAP_RESULT_SUCCESS || rc == CAPWAP_RESULT_SUCCESS_NAT)
+		return 1;
+	return 0;
+}

src/cw/mavl.h

@@ -81,7 +81,8 @@ typedef union mavldata mavldata_t;
 struct mavlnode {
 	/** Pointer to data, that belongs to the node */
 
-	union mavldata data;
+	union mavldata data; 
+	
 	/** Pointer to left son*/
 	struct mavlnode *left;
 	/** Pointer to right son*/
@@ -102,6 +103,8 @@ struct mavl {
 	void (*del) (union mavldata *);
 	/** Number of elements currently stored in the tree */
 	int count;
+	
+	size_t data_size;
 };
 
 /** 

src/cw/mlist.h

@@ -42,12 +42,16 @@ struct mlist_elem {
 	 * The last element is determined by a NULL pointer
 	 * */
 	struct mlist_elem *next;
+	struct mlist_elem *prev;
 };
 
 struct mlist {
 	void *data;
 	int (*cmp) (const void *d1, const void *d2);
 	struct mlist_elem *first;
+	struct mlist_elem *last;
+	int count;
+	//size_t elem_size;
 };
 
 typedef struct mlist * mlist_t;

src/wtp/changestate.c

@@ -21,7 +21,7 @@ int changestate()
 	
 	/* Change State ... */
 	int rc = cw_send_request(conn,CAPWAP_MSG_CHANGE_STATE_EVENT_REQUEST);
-	if ( !cw_rcok(rc) ) {
+	if ( !cw_result_is_ok(rc) ) {
 		cw_strresult(rc);
 		return 0;
 	}

src/wtp/configure.c

@@ -28,7 +28,7 @@ int configure()
 	int rc = cw_send_request(conn, CAPWAP_MSG_CONFIGURATION_STATUS_REQUEST);
 	conn->radios_upd=radios_upd;
 
-	if (!cw_rcok(rc)) {
+	if (!cw_result_is_ok(rc)) {
 		if (rc > 0) {
 			cw_log(LOG_ERR,
 			       "Error sending Configuration Status Request to AC at %s, AC said: %d - %s.",

src/wtp/join.c

@@ -188,7 +188,7 @@ int run_join(struct conn *conn)
 
 	int rc = cw_send_request(conn, CAPWAP_MSG_JOIN_REQUEST);
 
-	if (!cw_rcok(rc)) {
+	if (!cw_result_is_ok(rc)) {
 		if (rc > 0) {
 			cw_log(LOG_ERR, "Can't Join AC at %s, AC said: %d - %s.",
 			       sock_addr2str(&conn->addr), rc, cw_strerror(rc));

src/wtp/run.c

@@ -95,7 +95,7 @@ static void do_update(struct conn * conn)
 	cfg_to_json();
 	/* Change State ... */
 	int rc = cw_send_request(conn,CAPWAP_MSG_CHANGE_STATE_EVENT_REQUEST);
-	if ( !cw_rcok(rc) ) {
+	if ( !cw_result_is_ok(rc) ) {
 		cw_strresult(rc);
 		return ;
 	}
@@ -131,7 +131,7 @@ int run()
 				continue;
 			}
 
-			if ( !cw_rcok(rc))
+			if ( !cw_result_is_ok(rc))
 				break;
 
 
@@ -144,14 +144,14 @@ int run()
 		if (rc<0 && errno == EAGAIN){
 			rc = cw_send_request(conn,CAPWAP_MSG_ECHO_REQUEST);
 		
-			if (!cw_rcok(rc)) {
+			if (!cw_result_is_ok(rc)) {
 				cw_log(LOG_ERR,"Error in run state: %d %s",rc,cw_strrc(rc));
 				break;
 			}
 			continue;
 		}
 
-		if (!cw_rcok(rc)) {
+		if (!cw_result_is_ok(rc)) {
 			cw_log(LOG_ERR,"Error in run state: %d %s",rc,cw_strrc(rc));
 			break;
 		}