/
WTPRunState.c
1438 lines (1137 loc) · 38.4 KB
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WTPRunState.c
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/************************************************************************************************
* Copyright (c) 2006-2009 Laboratorio di Sistemi di Elaborazione e Bioingegneria Informatica *
* Universita' Campus BioMedico - Italy *
* *
* This program is free software; you can redistribute it and/or modify it under the terms *
* of the GNU General Public License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, but WITHOUT ANY *
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A *
* PARTICULAR PURPOSE. See the GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License along with this *
* program; if not, write to the: *
* Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, *
* MA 02111-1307, USA. *
* *
* -------------------------------------------------------------------------------------------- *
* Project: Capwap *
* *
* Authors : Ludovico Rossi (ludo@bluepixysw.com) *
* Del Moro Andrea (andrea_delmoro@libero.it) *
* Giovannini Federica (giovannini.federica@gmail.com) *
* Massimo Vellucci (m.vellucci@unicampus.it) *
* Mauro Bisson (mauro.bis@gmail.com) *
* Antonio Davoli (antonio.davoli@gmail.com) *
************************************************************************************************/
#include "CWWTP.h"
#include "CWVendorPayloads.h"
#ifdef DMALLOC
#include "../dmalloc-5.5.0/dmalloc.h"
#endif
CWBool CWWTPParseGenericRunMessage(CWProtocolMessage *msg, CWControlHeaderValues* controlVal);
CWBool CWWTPManageGenericRunMessage(CWProtocolMessage *msgPtr);
CWBool CWWTPCheckForBindingFrame();
CWBool CWWTPCheckForWTPEventRequest();
CWBool CWParseWTPEventResponseMessage(char *msg,
int len,
int seqNum,
void *values);
CWBool CWSaveWTPEventResponseMessage(void *WTPEventResp);
CWBool CWAssembleEchoRequest(CWProtocolMessage **messagesPtr,
int *fragmentsNumPtr,
int PMTU,
int seqNum,
CWList msgElemList);
CWBool CWParseConfigurationUpdateRequest (char *msg,
int len,
CWProtocolConfigurationUpdateRequestValues *valuesPtr,
int *updateRequestType);
CWBool CWSaveConfigurationUpdateRequest(CWProtocolConfigurationUpdateRequestValues *valuesPtr,
CWProtocolResultCode* resultCode,
int *updateRequestType);
CWBool CWAssembleConfigurationUpdateResponse(CWProtocolMessage **messagesPtr,
int *fragmentsNumPtr,
int PMTU,
int seqNum,
CWProtocolResultCode resultCode,
CWProtocolConfigurationUpdateRequestValues values);
CWBool CWSaveClearConfigurationRequest(CWProtocolResultCode* resultCode);
CWBool CWAssembleClearConfigurationResponse(CWProtocolMessage **messagesPtr,
int *fragmentsNumPtr,
int PMTU,
int seqNum,
CWProtocolResultCode resultCode);
CWBool CWAssembleStationConfigurationResponse(CWProtocolMessage **messagesPtr,
int *fragmentsNumPtr,
int PMTU,
int seqNum,
CWProtocolResultCode resultCode);
CWBool CWParseStationConfigurationRequest (char *msg, int len);
void CWConfirmRunStateToACWithEchoRequest();
CWTimerID gCWHeartBeatTimerID;
CWTimerID gCWNeighborDeadTimerID;
CWBool gNeighborDeadTimerSet=CW_FALSE;
int gEchoInterval = CW_ECHO_INTERVAL_DEFAULT;
/*
* Manage DTLS packets.
*/
CW_THREAD_RETURN_TYPE CWWTPReceiveDtlsPacket(void *arg) {
int readBytes;
char buf[CW_BUFFER_SIZE];
CWSocket sockDTLS = (CWSocket)arg;
CWNetworkLev4Address addr;
char* pData;
CW_REPEAT_FOREVER
{
if(!CWErr(CWNetworkReceiveUnsafe(sockDTLS,
buf,
CW_BUFFER_SIZE - 1,
0,
&addr,
&readBytes))) {
if (CWErrorGetLastErrorCode() == CW_ERROR_INTERRUPTED)
continue;
break;
}
/* Clone data packet */
CW_CREATE_OBJECT_SIZE_ERR(pData, readBytes, { CWLog("Out Of Memory"); return NULL; });
memcpy(pData, buf, readBytes);
CWLockSafeList(gPacketReceiveList);
CWAddElementToSafeListTail(gPacketReceiveList, pData, readBytes);
CWUnlockSafeList(gPacketReceiveList);
}
return NULL;
}
/*
* Manage Run State.
*/
CWStateTransition CWWTPEnterRun() {
int k;
CWLog("\n");
CWLog("######### WTP enters in RUN State #########");
for (k = 0; k < MAX_PENDING_REQUEST_MSGS; k++)
CWResetPendingMsgBox(gPendingRequestMsgs + k);
if (!CWErr(CWStartHeartbeatTimer())) {
return CW_ENTER_RESET;
}
CW_REPEAT_FOREVER
{
struct timespec timenow;
CWBool bReceivePacket = CW_FALSE;
CWBool bReveiveBinding = CW_FALSE;
/* Wait packet */
timenow.tv_sec = time(0) + CW_NEIGHBORDEAD_RESTART_DISCOVERY_DELTA_DEFAULT; /* greater than NeighborDeadInterval */
timenow.tv_nsec = 0;
CWThreadMutexLock(&gInterfaceMutex);
/*
* if there are no frames from stations
* and no packets from AC...
*/
if ((CWGetCountElementFromSafeList(gPacketReceiveList) == 0) && (CWGetCountElementFromSafeList(gFrameList) == 0)) {
/*
* ...wait at most 4 mins for a frame or packet.
*/
if (!CWErr(CWWaitThreadConditionTimeout(&gInterfaceWait, &gInterfaceMutex, &timenow))) {
CWThreadMutexUnlock(&gInterfaceMutex);
if (CWErrorGetLastErrorCode() == CW_ERROR_TIME_EXPIRED) {
CWLog("No Message from AC for a long time... restart Discovery State");
break;
}
continue;
}
}
bReceivePacket = ((CWGetCountElementFromSafeList(gPacketReceiveList) != 0) ? CW_TRUE : CW_FALSE);
bReveiveBinding = ((CWGetCountElementFromSafeList(gFrameList) != 0) ? CW_TRUE : CW_FALSE);
CWThreadMutexUnlock(&gInterfaceMutex);
if (bReceivePacket) {
CWProtocolMessage msg;
msg.msg = NULL;
msg.offset = 0;
if (!(CWReceiveMessage(&msg))) {
CW_FREE_PROTOCOL_MESSAGE(msg);
CWLog("Failure Receiving Response");
return CW_ENTER_RESET;
}
if (!CWErr(CWWTPManageGenericRunMessage(&msg))) {
if(CWErrorGetLastErrorCode() == CW_ERROR_INVALID_FORMAT) {
/* Log and ignore message */
CWErrorHandleLast();
CWLog("--> Received something different from a valid Run Message");
}
else {
CW_FREE_PROTOCOL_MESSAGE(msg);
CWLog("--> Critical Error Managing Generic Run Message... we enter RESET State");
return CW_ENTER_RESET;
}
}
}
if (bReveiveBinding)
CWWTPCheckForBindingFrame();
}
CWStopHeartbeatTimer();
return CW_ENTER_RESET;
}
CWBool CWWTPManageGenericRunMessage(CWProtocolMessage *msgPtr) {
CWControlHeaderValues controlVal;
if(msgPtr == NULL)
return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
msgPtr->offset = 0;
/* will be handled by the caller */
if(!(CWParseControlHeader(msgPtr, &controlVal)))
return CW_FALSE;
int len = controlVal.msgElemsLen - CW_CONTROL_HEADER_OFFSET_FOR_MSG_ELEMS;
int pendingMsgIndex = 0;
pendingMsgIndex = CWFindPendingRequestMsgsBox(gPendingRequestMsgs,
MAX_PENDING_REQUEST_MSGS,
controlVal.messageTypeValue,
controlVal.seqNum);
/* we have received a new Request or an Echo Response */
if (pendingMsgIndex < 0) {
//check if the msg type&seq is repeat
//CWWTPParseGenericRunMessage(msgPtr, &controlVal);
CWProtocolMessage *messages = NULL;
int fragmentsNum=0;
CWBool toSend=CW_FALSE;
switch(controlVal.messageTypeValue) {
case CW_MSG_TYPE_VALUE_CONFIGURE_UPDATE_REQUEST:
{
CWProtocolResultCode resultCode = CW_PROTOCOL_FAILURE;
CWProtocolConfigurationUpdateRequestValues values;
int updateRequestType;
/*Update 2009:
check to see if a time-out on session occur...
In case it happens it should go back to CW_ENTER_RESET*/
if (!CWResetTimers()) {
CWFreeMessageFragments(messages, fragmentsNum);
CW_FREE_OBJECT(messages);
return CW_FALSE;
}
CWLog("Configuration Update Request received");
/************************************************************************************************
* Update 2009: *
* These two function need an additional parameter (Pointer to updateRequestType) *
* for distinguish between all types of message elements. *
************************************************************************************************/
if(!CWParseConfigurationUpdateRequest((msgPtr->msg)+(msgPtr->offset), len, &values, &updateRequestType))
return CW_FALSE;
if(!CWSaveConfigurationUpdateRequest(&values, &resultCode, &updateRequestType))
return CW_FALSE;
/*
if ( updateRequestType == BINDING_MSG_ELEMENT_TYPE_OFDM_CONTROL )
break;
*/
/*Update 2009:
Added values (to return stuff with a conf update response)*/
if(!CWAssembleConfigurationUpdateResponse(&messages,
&fragmentsNum,
gWTPPathMTU,
controlVal.seqNum,
resultCode,
values))
return CW_FALSE;
toSend=CW_TRUE;
/*
* BUG-ML01- memory leak fix
*
* 16/10/2009 - Donato Capitella
*/
CWProtocolVendorSpecificValues* psValues = values.protocolValues;
if (psValues->vendorPayloadType == CW_MSG_ELEMENT_VENDOR_SPEC_PAYLOAD_UCI)
CW_FREE_OBJECT(((CWVendorUciValues *)psValues->payload)->response);
CW_FREE_OBJECT(psValues->payload);
CW_FREE_OBJECT(values.protocolValues);
break;
break;
}
case CW_MSG_TYPE_VALUE_CLEAR_CONFIGURATION_REQUEST:
{
CWProtocolResultCode resultCode = CW_PROTOCOL_FAILURE;
/*Update 2009:
check to see if a time-out on session occur...
In case it happens it should go back to CW_ENTER_RESET*/
if (!CWResetTimers()) {
CWFreeMessageFragments(messages, fragmentsNum);
CW_FREE_OBJECT(messages);
return CW_FALSE;
}
CWLog("Clear Configuration Request received");
/*WTP RESET ITS CONFIGURAION TO MANUFACTURING DEFAULT}*/
if(!CWSaveClearConfigurationRequest(&resultCode))
return CW_FALSE;
if(!CWAssembleClearConfigurationResponse(&messages, &fragmentsNum, gWTPPathMTU, controlVal.seqNum, resultCode))
return CW_FALSE;
toSend=CW_TRUE;
break;
}
case CW_MSG_TYPE_VALUE_STATION_CONFIGURATION_REQUEST:
{
CWProtocolResultCode resultCode = CW_PROTOCOL_FAILURE;
//CWProtocolStationConfigurationRequestValues values; --> da implementare
/*Update 2009:
check to see if a time-out on session occur...
In case it happens it should go back to CW_ENTER_RESET*/
if (!CWResetTimers()) {
CWFreeMessageFragments(messages, fragmentsNum);
CW_FREE_OBJECT(messages);
return CW_FALSE;
}
CWLog("Station Configuration Request received");
if(!CWParseStationConfigurationRequest((msgPtr->msg)+(msgPtr->offset), len))
return CW_FALSE;
if(!CWAssembleStationConfigurationResponse(&messages, &fragmentsNum, gWTPPathMTU, controlVal.seqNum, resultCode))
return CW_FALSE;
toSend=CW_TRUE;
break;
}
case CW_MSG_TYPE_VALUE_ECHO_RESPONSE:
{
/*Update 2009:
check to see if a time-out on session occur...
In case it happens it should go back to CW_ENTER_RESET*/
if (!CWResetTimers()) {
CWFreeMessageFragments(messages, fragmentsNum);
CW_FREE_OBJECT(messages);
return CW_FALSE;
}
CWLog("Echo Response received");
break;
}
default:
/*
* We can't recognize the received Request so
* we have to send a corresponding response
* containing a failure result code
*/
CWLog("--> Not valid Request in Run State... we send a failure Response");
/*Update 2009:
check to see if a time-out on session occur...
In case it happens it should go back to CW_ENTER_RESET*/
if (!CWResetTimers()) {
CWFreeMessageFragments(messages, fragmentsNum);
CW_FREE_OBJECT(messages);
return CW_FALSE;
}
if(!(CWAssembleUnrecognizedMessageResponse(&messages,
&fragmentsNum,
gWTPPathMTU,
controlVal.seqNum,
controlVal.messageTypeValue+1)))
return CW_FALSE;
toSend = CW_TRUE;
/* return CWErrorRaise(CW_ERROR_INVALID_FORMAT,
* "Received Message not valid in Run State");
*/
}
if(toSend) {
int i;
for(i = 0; i < fragmentsNum; i++) {
#ifdef CW_NO_DTLS
if(!CWNetworkSendUnsafeConnected(gWTPSocket,
messages[i].msg,
messages[i].offset))
#else
if(!CWSecuritySend(gWTPSession,
messages[i].msg,
messages[i].offset))
#endif
{
CWLog("Error sending message");
CWFreeMessageFragments(messages, fragmentsNum);
CW_FREE_OBJECT(messages);
return CW_FALSE;
}
}
CWLog("Message Sent\n");
CWFreeMessageFragments(messages, fragmentsNum);
CW_FREE_OBJECT(messages);
/*
* Check if we have to exit due to an update commit request.
*/
if (WTPExitOnUpdateCommit) {
exit(EXIT_SUCCESS);
}
}
}
else {/* we have received a Response */
/*Update 2009:
check to see if a time-out on session occur...
In case it happens it should go back to CW_ENTER_RESET*/
if (!CWResetTimers())
return CW_FALSE;
switch(controlVal.messageTypeValue)
{
case CW_MSG_TYPE_VALUE_CHANGE_STATE_EVENT_RESPONSE:
CWLog("Change State Event Response received");
break;
case CW_MSG_TYPE_VALUE_WTP_EVENT_RESPONSE:
CWLog("WTP Event Response received");
break;
case CW_MSG_TYPE_VALUE_DATA_TRANSFER_RESPONSE:
CWLog("Data Transfer Response received");
break;
default:
/*
* We can't recognize the received Response: we
* ignore the message and log the event.
*/
return CWErrorRaise(CW_ERROR_INVALID_FORMAT,
"Received Message not valid in Run State");
}
CWResetPendingMsgBox(&(gPendingRequestMsgs[pendingMsgIndex]));
}
CW_FREE_PROTOCOL_MESSAGE(*msgPtr);
return CW_TRUE;
}
/*______________________________________________________________*/
/* *******************___TIMER HANDLERS___******************* */
void CWWTPHeartBeatTimerExpiredHandler(void *arg) {
CWList msgElemList = NULL;
CWProtocolMessage *messages = NULL;
int fragmentsNum = 0;
int seqNum;
if(!gNeighborDeadTimerSet) {
if (!CWStartNeighborDeadTimer()) {
CWStopHeartbeatTimer();
CWStopNeighborDeadTimer();
return;
}
}
CWLog("WTP HeartBeat Timer Expired... we send an ECHO Request");
CWLog("\n");
CWLog("#________ Echo Request Message (Run) ________#");
/* Send WTP Event Request */
seqNum = CWGetSeqNum();
if(!CWAssembleEchoRequest(&messages,
&fragmentsNum,
gWTPPathMTU,
seqNum,
msgElemList)){
int i;
CWDebugLog("Failure Assembling Echo Request");
if(messages)
for(i = 0; i < fragmentsNum; i++) {
CW_FREE_PROTOCOL_MESSAGE(messages[i]);
}
CW_FREE_OBJECT(messages);
return;
}
int i;
for(i = 0; i < fragmentsNum; i++) {
#ifdef CW_NO_DTLS
if(!CWNetworkSendUnsafeConnected(gWTPSocket, messages[i].msg, messages[i].offset)) {
#else
if(!CWSecuritySend(gWTPSession, messages[i].msg, messages[i].offset)){
#endif
CWLog("Failure sending Request");
int k;
for(k = 0; k < fragmentsNum; k++) {
CW_FREE_PROTOCOL_MESSAGE(messages[k]);
}
CW_FREE_OBJECT(messages);
break;
}
}
int k;
for(k = 0; messages && k < fragmentsNum; k++) {
CW_FREE_PROTOCOL_MESSAGE(messages[k]);
}
CW_FREE_OBJECT(messages);
if(!CWStartHeartbeatTimer()) {
return;
}
}
void CWWTPNeighborDeadTimerExpired(void *arg) {
CWLog("WTP NeighborDead Timer Expired... we consider Peer Dead.");
#ifdef DMALLOC
dmalloc_shutdown();
#endif
return;
}
CWBool CWStartHeartbeatTimer() {
gCWHeartBeatTimerID = timer_add(gEchoInterval,
0,
&CWWTPHeartBeatTimerExpiredHandler,
NULL);
if (gCWHeartBeatTimerID == -1) return CW_FALSE;
CWDebugLog("Heartbeat Timer Started");
return CW_TRUE;
}
CWBool CWStopHeartbeatTimer(){
timer_rem(gCWHeartBeatTimerID, NULL);
CWDebugLog("Heartbeat Timer Stopped");
return CW_TRUE;
}
CWBool CWStartNeighborDeadTimer() {
gCWNeighborDeadTimerID = timer_add(gCWNeighborDeadInterval,
0,
&CWWTPNeighborDeadTimerExpired,
NULL);
if (gCWNeighborDeadTimerID == -1) return CW_FALSE;
CWDebugLog("NeighborDead Timer Started");
gNeighborDeadTimerSet = CW_TRUE;
return CW_TRUE;
}
CWBool CWStopNeighborDeadTimer() {
timer_rem(gCWNeighborDeadTimerID, NULL);
CWDebugLog("NeighborDead Timer Stopped");
gNeighborDeadTimerSet = CW_FALSE;
return CW_TRUE;
}
CWBool CWResetTimers() {
if(gNeighborDeadTimerSet) {
if (!CWStopNeighborDeadTimer()) return CW_FALSE;
}
if(!CWStopHeartbeatTimer())
return CW_FALSE;
if(!CWStartHeartbeatTimer())
return CW_FALSE;
return CW_TRUE;
}
/*__________________________________________________________________*/
/* *******************___ASSEMBLE FUNCTIONS___******************* */
CWBool CWAssembleEchoRequest (CWProtocolMessage **messagesPtr,
int *fragmentsNumPtr,
int PMTU,
int seqNum,
CWList msgElemList) {
CWProtocolMessage *msgElems= NULL;
const int msgElemCount = 0;
CWProtocolMessage *msgElemsBinding= NULL;
const int msgElemBindingCount=0;
if(messagesPtr == NULL || fragmentsNumPtr == NULL)
return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
CWLog("Assembling Echo Request...");
if(!(CWAssembleMessage(messagesPtr,
fragmentsNumPtr,
PMTU,
seqNum,
CW_MSG_TYPE_VALUE_ECHO_REQUEST,
msgElems,
msgElemCount,
msgElemsBinding,
msgElemBindingCount,
#ifdef CW_NO_DTLSCWParseConfigurationUpdateRequest
CW_PACKET_PLAIN
#else
CW_PACKET_CRYPT
#endif
)))
return CW_FALSE;
CWLog("Echo Request Assembled");
return CW_TRUE;
}
CWBool CWAssembleWTPDataTransferRequest(CWProtocolMessage **messagesPtr, int *fragmentsNumPtr, int PMTU, int seqNum, CWList msgElemList)
{
CWProtocolMessage *msgElems= NULL;
int msgElemCount = 0;
CWProtocolMessage *msgElemsBinding= NULL;
const int msgElemBindingCount=0;
int i;
CWListElement *current;
int k = -1;
if(messagesPtr == NULL || fragmentsNumPtr == NULL || msgElemList == NULL) return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
msgElemCount = CWCountElementInList(msgElemList);
if (msgElemCount > 0) {
CW_CREATE_PROTOCOL_MSG_ARRAY_ERR(msgElems, msgElemCount, return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
}
else msgElems = NULL;
CWLog("Assembling WTP Data Transfer Request...");
current=msgElemList;
for (i=0; i<msgElemCount; i++)
{
switch (((CWMsgElemData *) current->data)->type)
{
case CW_MSG_ELEMENT_DATA_TRANSFER_DATA_CW_TYPE:
if (!(CWAssembleMsgElemDataTransferData(&(msgElems[++k]), ((CWMsgElemData *) current->data)->value)))
goto cw_assemble_error;
break;
/*case CW_MSG_ELEMENT_DATA_TRANSFER_MODE_CW_TYPE:
if (!(CWAssembleMsgElemDataTansferMode(&(msgElems[++k]))))
goto cw_assemble_error;
break;*/
default:
goto cw_assemble_error;
break;
}
current = current->next;
}
if (!(CWAssembleMessage(messagesPtr,
fragmentsNumPtr,
PMTU,
seqNum,
CW_MSG_TYPE_VALUE_DATA_TRANSFER_REQUEST,
msgElems,
msgElemCount,
msgElemsBinding,
msgElemBindingCount,
#ifdef CW_NO_DTLS
CW_PACKET_PLAIN
#else
CW_PACKET_CRYPT
#endif
)))
return CW_FALSE;
CWLog("WTP Data Transfer Request Assembled");
return CW_TRUE;
cw_assemble_error:
{
int i;
for(i = 0; i <= k; i++) { CW_FREE_PROTOCOL_MESSAGE(msgElems[i]);}
CW_FREE_OBJECT(msgElems);
return CW_FALSE; // error will be handled by the caller
}
}
CWBool CWAssembleWTPEventRequest(CWProtocolMessage **messagesPtr,
int *fragmentsNumPtr,
int PMTU,
int seqNum,
CWList msgElemList) {
CWProtocolMessage *msgElems= NULL;
int msgElemCount = 0;
CWProtocolMessage *msgElemsBinding= NULL;
const int msgElemBindingCount=0;
int i;
CWListElement *current;
int k = -1;
if(messagesPtr == NULL || fragmentsNumPtr == NULL || msgElemList == NULL)
return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
msgElemCount = CWCountElementInList(msgElemList);
if (msgElemCount > 0) {
CW_CREATE_PROTOCOL_MSG_ARRAY_ERR(msgElems,
msgElemCount,
return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
}
else
msgElems = NULL;
CWLog("Assembling WTP Event Request...");
current=msgElemList;
for (i=0; i<msgElemCount; i++) {
switch (((CWMsgElemData *) current->data)->type) {
case CW_MSG_ELEMENT_CW_DECRYPT_ER_REPORT_CW_TYPE:
if (!(CWAssembleMsgElemDecryptErrorReport(&(msgElems[++k]), ((CWMsgElemData *) current->data)->value)))
goto cw_assemble_error;
break;
case CW_MSG_ELEMENT_DUPLICATE_IPV4_ADDRESS_CW_TYPE:
if (!(CWAssembleMsgElemDuplicateIPv4Address(&(msgElems[++k]))))
goto cw_assemble_error;
break;
case CW_MSG_ELEMENT_DUPLICATE_IPV6_ADDRESS_CW_TYPE:
if (!(CWAssembleMsgElemDuplicateIPv6Address(&(msgElems[++k]))))
goto cw_assemble_error;
break;
case CW_MSG_ELEMENT_WTP_OPERAT_STATISTICS_CW_TYPE:
if (!(CWAssembleMsgElemWTPOperationalStatistics(&(msgElems[++k]), ((CWMsgElemData *) current->data)->value)))
goto cw_assemble_error;
break;
case CW_MSG_ELEMENT_WTP_RADIO_STATISTICS_CW_TYPE:
if (!(CWAssembleMsgElemWTPRadioStatistics(&(msgElems[++k]), ((CWMsgElemData *) current->data)->value)))
goto cw_assemble_error;
break;
case CW_MSG_ELEMENT_WTP_REBOOT_STATISTICS_CW_TYPE:
if (!(CWAssembleMsgElemWTPRebootStatistics(&(msgElems[++k]))))
goto cw_assemble_error;
break;
default:
goto cw_assemble_error;
break;
}
current = current->next;
}
if (!(CWAssembleMessage(messagesPtr,
fragmentsNumPtr,
PMTU,
seqNum,
CW_MSG_TYPE_VALUE_WTP_EVENT_REQUEST,
msgElems,
msgElemCount,
msgElemsBinding,
msgElemBindingCount,
#ifdef CW_NO_DTLS
CW_PACKET_PLAIN
#else
CW_PACKET_CRYPT
#endif
)))
return CW_FALSE;
CWLog("WTP Event Request Assembled");
return CW_TRUE;
cw_assemble_error:
{
int i;
for(i = 0; i <= k; i++) { CW_FREE_PROTOCOL_MESSAGE(msgElems[i]);}
CW_FREE_OBJECT(msgElems);
return CW_FALSE; // error will be handled by the caller
}
}
/*Update 2009:
Added values to args... values is used to determine if we have some
payload (in this case only vendor and only UCI) to send back with the
configuration update response*/
CWBool CWAssembleConfigurationUpdateResponse(CWProtocolMessage **messagesPtr,
int *fragmentsNumPtr,
int PMTU,
int seqNum,
CWProtocolResultCode resultCode,
CWProtocolConfigurationUpdateRequestValues values) {
CWProtocolMessage *msgElems = NULL;
const int msgElemCount = 1;
CWProtocolMessage *msgElemsBinding= NULL;
const int msgElemBindingCount=0;
CWProtocolVendorSpecificValues *protoValues = NULL;
/*Get protocol data if we have it*/
if (values.protocolValues)
protoValues = (CWProtocolVendorSpecificValues *) values.protocolValues;
if(messagesPtr == NULL || fragmentsNumPtr == NULL)
return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
CWLog("Assembling Configuration Update Response...");
CW_CREATE_OBJECT_ERR(msgElems, CWProtocolMessage, return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
if (protoValues) {
switch (protoValues->vendorPayloadType) {
case CW_MSG_ELEMENT_VENDOR_SPEC_PAYLOAD_UCI:
case CW_MSG_ELEMENT_VENDOR_SPEC_PAYLOAD_WUM:
if (!(CWAssembleVendorMsgElemResultCodeWithPayload(msgElems,resultCode, protoValues))) {
CW_FREE_OBJECT(msgElems);
return CW_FALSE;
}
break;
default:
/*Result Code only*/
if (!(CWAssembleMsgElemResultCode(msgElems,resultCode))) {
CW_FREE_OBJECT(msgElems);
return CW_FALSE;
}
}
} else {
/*Result Code only*/
if (!(CWAssembleMsgElemResultCode(msgElems,resultCode))) {
CW_FREE_OBJECT(msgElems);
return CW_FALSE;
}
}
if(!(CWAssembleMessage(messagesPtr,
fragmentsNumPtr,
PMTU,
seqNum,
CW_MSG_TYPE_VALUE_CONFIGURE_UPDATE_RESPONSE,
msgElems,
msgElemCount,
msgElemsBinding,
msgElemBindingCount,
#ifdef CW_NO_DTLS
CW_PACKET_PLAIN
#else
CW_PACKET_CRYPT
#endif
)))
return CW_FALSE;
CWLog("Configuration Update Response Assembled");
return CW_TRUE;
}
CWBool CWAssembleClearConfigurationResponse(CWProtocolMessage **messagesPtr, int *fragmentsNumPtr, int PMTU, int seqNum, CWProtocolResultCode resultCode)
{
CWProtocolMessage *msgElems= NULL;
const int msgElemCount = 1;
CWProtocolMessage *msgElemsBinding= NULL;
const int msgElemBindingCount=0;
if(messagesPtr == NULL || fragmentsNumPtr == NULL) return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
CWLog("Assembling Clear Configuration Response...");
CW_CREATE_OBJECT_ERR(msgElems, CWProtocolMessage, return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
if (!(CWAssembleMsgElemResultCode(msgElems,resultCode))) {
CW_FREE_OBJECT(msgElems);
return CW_FALSE;
}
if(!(CWAssembleMessage(messagesPtr,
fragmentsNumPtr,
PMTU,
seqNum,
CW_MSG_TYPE_VALUE_CLEAR_CONFIGURATION_RESPONSE,
msgElems,
msgElemCount,
msgElemsBinding,
msgElemBindingCount,
#ifdef CW_NO_DTLS
CW_PACKET_PLAIN
#else
CW_PACKET_CRYPT
#endif
)))
return CW_FALSE;
CWLog("Clear Configuration Response Assembled");
return CW_TRUE;
}
CWBool CWAssembleStationConfigurationResponse(CWProtocolMessage **messagesPtr, int *fragmentsNumPtr, int PMTU, int seqNum, CWProtocolResultCode resultCode)
{
CWProtocolMessage *msgElems= NULL;
const int msgElemCount = 1;
CWProtocolMessage *msgElemsBinding= NULL;
const int msgElemBindingCount=0;
if(messagesPtr == NULL || fragmentsNumPtr == NULL) return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
CWLog("Assembling Sattion Configuration Response...");
CW_CREATE_OBJECT_ERR(msgElems, CWProtocolMessage, return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
if (!(CWAssembleMsgElemResultCode(msgElems,resultCode))) {
CW_FREE_OBJECT(msgElems);
return CW_FALSE;
}
if(!(CWAssembleMessage(messagesPtr,
fragmentsNumPtr,
PMTU,
seqNum,
CW_MSG_TYPE_VALUE_STATION_CONFIGURATION_RESPONSE,
msgElems,
msgElemCount,
msgElemsBinding,
msgElemBindingCount,
#ifdef CW_NO_DTLS
CW_PACKET_PLAIN
#else
CW_PACKET_CRYPT
#endif
)))
return CW_FALSE;
CWLog("Station Configuration Response Assembled");
return CW_TRUE;
}
/*_______________________________________________________________*/
/* *******************___PARSE FUNCTIONS___******************* */
/*Update 2009:
Function that parses vendor payload,
filling in valuesPtr*/
CWBool CWParseVendorMessage(char *msg, int len, void **valuesPtr) {
int i;
CWProtocolMessage completeMsg;
unsigned short int GlobalElemType=0;// = CWProtocolRetrieve32(&completeMsg);
if(msg == NULL || valuesPtr == NULL) return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
CWLog("Parsing Vendor Specific Message...");