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ACDiscoveryState.c
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/*******************************************************************************************
* Copyright (c) 2006-7 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 *
* *
* Author : Ludovico Rossi ([email protected]) *
* Del Moro Andrea ([email protected]) *
* Giovannini Federica ([email protected]) *
* Massimo Vellucci ([email protected]) *
* Mauro Bisson ([email protected]) *
*******************************************************************************************/
#include "CWAC.h"
#ifdef DMALLOC
#include "../dmalloc-5.5.0/dmalloc.h"
#endif
/*__________________________________________________________*/
/* *******************___PROTOTYPES___******************* */
__inline__ int CWACGetHWVersion();
__inline__ int CWACGetSWVersion();
__inline__ int CWACGetStations();
__inline__ int CWACGetLimit();
__inline__ int CWACGetActiveWTPs();
__inline__ int CWACGetMaxWTPs();
__inline__ int CWACGetSecurity();
__inline__ char *CWACGetName();
__inline__ int CWACGetInterfacesCount();
/*_________________________________________________________*/
/* *******************___FUNCTIONS___******************* */
/* send Discovery Response to the host at the specified address */
CWBool CWAssembleDiscoveryResponse(CWProtocolMessage **messagesPtr, int seqNum) {
CWProtocolMessage *msgElems= NULL;
int msgElemCount = 3;
CWProtocolMessage *msgElemsBinding= NULL;
int msgElemBindingCount=0;
int fragmentsNum;
int k = -1;
if(messagesPtr == NULL) return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
if(CWACSupportIPv6()) {
msgElemCount++;
}
CWLog("Send Discovery Response");
CW_CREATE_PROTOCOL_MSG_ARRAY_ERR(msgElems,
msgElemCount,
return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
/* Assemble Message Elements */
if ((!(CWAssembleMsgElemACDescriptor(&(msgElems[++k])))) ||
(!(CWAssembleMsgElemACName(&(msgElems[++k])))) ||
(!(CWAssembleMsgElemCWControlIPv4Addresses(&(msgElems[++k]))))/* ||
(CWACSupportIPv6() && (!(CWAssembleMsgElemCWControlIPv6Addresses(&(msgElems[++k])))))*/
) {
CWErrorHandleLast();
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
}
return CWAssembleMessage(messagesPtr,
&fragmentsNum,
0,
seqNum,
CW_MSG_TYPE_VALUE_DISCOVERY_RESPONSE,
msgElems,
msgElemCount,
msgElemsBinding,
msgElemBindingCount,
CW_PACKET_PLAIN);
}
CWBool CWParseDiscoveryRequestMessage(char *msg,
int len,
int *seqNumPtr,
CWDiscoveryRequestValues *valuesPtr) {
CWControlHeaderValues controlVal;
CWProtocolTransportHeaderValues transportVal;
int offsetTillMessages;
CWProtocolMessage completeMsg;
if(msg == NULL || seqNumPtr == NULL || valuesPtr == NULL)
return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
CWDebugLog("Parse Discovery Request");
completeMsg.msg = msg;
completeMsg.offset = 0;
CWBool dataFlag = CW_FALSE;
if(!(CWParseTransportHeader(&completeMsg, &transportVal, &dataFlag)))
/* will be handled by the caller */
return CW_FALSE;
if(!(CWParseControlHeader(&completeMsg, &controlVal)))
/* will be handled by the caller */
return CW_FALSE;
/* different type */
if(controlVal.messageTypeValue != CW_MSG_TYPE_VALUE_DISCOVERY_REQUEST){
CWLog("messageTypeValue=%d", controlVal.messageTypeValue);
return CWErrorRaise(CW_ERROR_INVALID_FORMAT, "Message is not Discovery Request as Expected");
}
*seqNumPtr = controlVal.seqNum;
/* skip timestamp */
controlVal.msgElemsLen -= CW_CONTROL_HEADER_OFFSET_FOR_MSG_ELEMS;
offsetTillMessages = completeMsg.offset;
/* (*valuesPtr).radios.radiosCount = 0; */
/* parse message elements */
while((completeMsg.offset-offsetTillMessages) < controlVal.msgElemsLen) {
//CWLog("CWParseDiscoveryRequestMessage while begin ...");
unsigned short int elemType = 0;/* = CWProtocolRetrieve32(&completeMsg); */
unsigned short int elemLen = 0; /* = CWProtocolRetrieve16(&completeMsg); */
CWParseFormatMsgElem(&completeMsg,&elemType,&elemLen);
/* CWDebugLog("Parsing Message Element: %u, elemLen: %u", elemType, elemLen); */
switch(elemType) {
case CW_MSG_ELEMENT_DISCOVERY_TYPE_CW_TYPE:
if(!(CWParseDiscoveryType(&completeMsg, elemLen, valuesPtr)))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_BOARD_DATA_CW_TYPE:
if(!(CWParseWTPBoardData(&completeMsg, elemLen, &(valuesPtr->WTPBoardData))))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_DESCRIPTOR_CW_TYPE:
if(!(CWParseWTPDescriptor(&completeMsg, elemLen, &(valuesPtr->WTPDescriptor))))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_FRAME_TUNNEL_MODE_CW_TYPE:
if(!(CWParseWTPFrameTunnelMode(&completeMsg, elemLen, &(valuesPtr->frameTunnelMode))))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_MAC_TYPE_CW_TYPE:
if(!(CWParseWTPMACType(&completeMsg, elemLen, &(valuesPtr->MACType))))
/* will be handled by the caller */
return CW_FALSE;
break;
/*case CW_MSG_ELEMENT_WTP_RADIO_INFO_CW_TYPE:
// just count how many radios we have, so we can allocate the array
(*valuesPtr).radios.radiosCount++;
completeMsg.offset += elemLen;
break;
*/
default:
return CWErrorRaise(CW_ERROR_INVALID_FORMAT,
"Unrecognized Message Element");
}
/*CWDebugLog("bytes: %d/%d", (completeMsg.offset-offsetTillMessages), controlVal.msgElemsLen);*/
}
if(completeMsg.offset != len) return CWErrorRaise(CW_ERROR_INVALID_FORMAT, "Garbage at the End of the Message");
/*
// actually read each radio info
CW_CREATE_ARRAY_ERR((*valuesPtr).radios.radios, (*valuesPtr).radios.radiosCount, CWRadioInformationValues,
return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
i = 0;
completeMsg.offset = offsetTillMessages;
while(i < (*valuesPtr).radios.radiosCount && (completeMsg.offset-offsetTillMessages) < controlVal.msgElemsLen) {
unsigned short int type=0;// = CWProtocolRetrieve32(&completeMsg);
unsigned short int len=0;// = CWProtocolRetrieve16(&completeMsg);
CWParseFormatMsgElem(&completeMsg,&type,&len);
switch(type) {
case CW_MSG_ELEMENT_WTP_RADIO_INFO_CW_TYPE:
if(!(CWParseWTPRadioInfo(&completeMsg, len, &(valuesPtr->radios), i))) return CW_FALSE; // will be handled by the caller
i++;
break;
default:
completeMsg.offset += len;
break;
}
}
*/
return CW_TRUE;
}
//Main thread
CWBool CWParseJoinReqMsgNotValue(char *msg,
int len) {
CWControlHeaderValues controlVal;
CWProtocolTransportHeaderValues transportVal;
//int offsetTillMessages;
CWProtocolMessage completeMsg;
if(msg == NULL)
return CWErrorRaise(CW_ERROR_WRONG_ARG, NULL);
CWDebugLog("Parse Discovery Request");
completeMsg.msg = msg;
completeMsg.offset = 0;
CWBool dataFlag = CW_FALSE;
if(!(CWParseTransportHeader(&completeMsg, &transportVal, &dataFlag)))
/* will be handled by the caller */
return CW_FALSE;
if(!(CWParseControlHeader(&completeMsg, &controlVal)))
/* will be handled by the caller */
return CW_FALSE;
/* different type */
if(controlVal.messageTypeValue != CW_MSG_TYPE_VALUE_JOIN_REQUEST){
CWLog("messageTypeValue=%d", controlVal.messageTypeValue);
return CWErrorRaise(CW_ERROR_INVALID_FORMAT, "Message is not Join Request as Expected");
}
#if 0
*seqNumPtr = controlVal.seqNum;
/* skip timestamp */
controlVal.msgElemsLen -= CW_CONTROL_HEADER_OFFSET_FOR_MSG_ELEMS;
offsetTillMessages = completeMsg.offset;
/* (*valuesPtr).radios.radiosCount = 0; */
/* parse message elements */
while((completeMsg.offset-offsetTillMessages) < controlVal.msgElemsLen) {
//CWLog("CWParseDiscoveryRequestMessage while begin ...");
unsigned short int elemType = 0;/* = CWProtocolRetrieve32(&completeMsg); */
unsigned short int elemLen = 0; /* = CWProtocolRetrieve16(&completeMsg); */
CWParseFormatMsgElem(&completeMsg,&elemType,&elemLen);
/* CWDebugLog("Parsing Message Element: %u, elemLen: %u", elemType, elemLen); */
switch(elemType) {
case CW_MSG_ELEMENT_DISCOVERY_TYPE_CW_TYPE:
if(!(CWParseDiscoveryType(&completeMsg, elemLen, valuesPtr)))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_BOARD_DATA_CW_TYPE:
if(!(CWParseWTPBoardData(&completeMsg, elemLen, &(valuesPtr->WTPBoardData))))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_DESCRIPTOR_CW_TYPE:
if(!(CWParseWTPDescriptor(&completeMsg, elemLen, &(valuesPtr->WTPDescriptor))))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_FRAME_TUNNEL_MODE_CW_TYPE:
if(!(CWParseWTPFrameTunnelMode(&completeMsg, elemLen, &(valuesPtr->frameTunnelMode))))
/* will be handled by the caller */
return CW_FALSE;
break;
case CW_MSG_ELEMENT_WTP_MAC_TYPE_CW_TYPE:
if(!(CWParseWTPMACType(&completeMsg, elemLen, &(valuesPtr->MACType))))
/* will be handled by the caller */
return CW_FALSE;
break;
/*case CW_MSG_ELEMENT_WTP_RADIO_INFO_CW_TYPE:
// just count how many radios we have, so we can allocate the array
(*valuesPtr).radios.radiosCount++;
completeMsg.offset += elemLen;
break;
*/
default:
return CWErrorRaise(CW_ERROR_INVALID_FORMAT,
"Unrecognized Message Element");
}
/*CWDebugLog("bytes: %d/%d", (completeMsg.offset-offsetTillMessages), controlVal.msgElemsLen);*/
}
if(completeMsg.offset != len) return CWErrorRaise(CW_ERROR_INVALID_FORMAT, "Garbage at the End of the Message");
/*
// actually read each radio info
CW_CREATE_ARRAY_ERR((*valuesPtr).radios.radios, (*valuesPtr).radios.radiosCount, CWRadioInformationValues,
return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
i = 0;
completeMsg.offset = offsetTillMessages;
while(i < (*valuesPtr).radios.radiosCount && (completeMsg.offset-offsetTillMessages) < controlVal.msgElemsLen) {
unsigned short int type=0;// = CWProtocolRetrieve32(&completeMsg);
unsigned short int len=0;// = CWProtocolRetrieve16(&completeMsg);
CWParseFormatMsgElem(&completeMsg,&type,&len);
switch(type) {
case CW_MSG_ELEMENT_WTP_RADIO_INFO_CW_TYPE:
if(!(CWParseWTPRadioInfo(&completeMsg, len, &(valuesPtr->radios), i))) return CW_FALSE; // will be handled by the caller
i++;
break;
default:
completeMsg.offset += len;
break;
}
}
*/
#endif
return CW_TRUE;
}
void CWDestroyDiscoveryRequestValues(CWDiscoveryRequestValues *valPtr) {
int i;
if(valPtr == NULL) return;
for(i = 0; i < (valPtr->WTPDescriptor.vendorInfos).vendorInfosCount; i++) {
CW_FREE_OBJECT(((valPtr->WTPDescriptor.vendorInfos).vendorInfos)[i].valuePtr);
}
CW_FREE_OBJECT((valPtr->WTPDescriptor.vendorInfos).vendorInfos);
/*
* BUG ML11
*
* 10/10/2009 - Donato Capitella
*/
for(i = 0; i < valPtr->WTPBoardData.vendorInfosCount; i++) {
CW_FREE_OBJECT(valPtr->WTPBoardData.vendorInfos[i].valuePtr);
}
CW_FREE_OBJECT(valPtr->WTPBoardData.vendorInfos);
/*CW_FREE_OBJECT((valPtr->radios).radios);*/
}