/*
* Manage Join State.
*/
CWStateTransition CWWTPEnterJoin() {
CWTimerID waitJoinTimer;
int seqNum;
CWProtocolJoinResponseValues values;
CWLog("\n");
CWLog("######### Join State #########");
/* reset Join state */
CWNetworkCloseSocket(gWTPSocket);
CWSecurityDestroySession(gWTPSession);
CWSecurityDestroyContext(gWTPSecurityContext);
gWTPSecurityContext = NULL;
gWTPSession = NULL;
/* Initialize gACInfoPtr */
gACInfoPtr->ACIPv4ListInfo.ACIPv4ListCount=0;
gACInfoPtr->ACIPv4ListInfo.ACIPv4List=NULL;
gACInfoPtr->ACIPv6ListInfo.ACIPv6ListCount=0;
gACInfoPtr->ACIPv6ListInfo.ACIPv6List=NULL;
if ((waitJoinTimer = timer_add(gCWWaitJoin, 0, CWWTPWaitJoinExpired, NULL)) == -1) {
return CW_ENTER_DISCOVERY;
}
if(gWTPForceACAddress != NULL) {
CW_CREATE_OBJECT_ERR(gACInfoPtr,
CWACInfoValues,
return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
// Manage Join State
CWStateTransition CWWTPEnterJoin() {
CWTimerID waitJoinTimer;
int seqNum;
CWProtocolJoinResponseValues values;
CWWTPDebugLog("######### Join State #########");
// reset Join state
CWNetworkCloseSocket(gWTPSocket);
#ifndef CW_NO_DTLS//csc
if(gDtlsSecurity == 1)
{
CWSecurityDestroySession(gWTPSession);
CWSecurityDestroyContext(gWTPSecurityContext);
gWTPSecurityContext = NULL;
gWTPSession = NULL;
}
#endif
//Initialize gACInfoPtr
gACInfoPtr->ACIPv4ListInfo.ACIPv4ListCount=0;
gACInfoPtr->ACIPv4ListInfo.ACIPv4List=NULL;
gACInfoPtr->ACIPv6ListInfo.ACIPv6ListCount=0;
gACInfoPtr->ACIPv6ListInfo.ACIPv6List=NULL;
/*
* MAURO: allo scadere del waitJoinTimer viene invocata, in modo
* asincrono, CWWTPWaitJoinExpired(0)
*/
if ((waitJoinTimer = timer_add(gCWWaitJoin, 0, CWWTPWaitJoinExpired, NULL)) == -1) {
return CW_ENTER_DISCOVERY;
}
/*
* MAURO: gWTPForceACAddress contine l'"indirizzo" dell'AC con cui fare
* il JOIN nel caso che sia specificato nel file di configuarazione.
* Se questa var globale e' settata da WTP.c viene invocata direttamente
* CWWTPEnterJoin per saltare il DISCOVERY.
*/
if(gWTPForceACAddress != NULL) {
CW_CREATE_OBJECT_ERR(gACInfoPtr, CWACInfoValues, return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL););
/*
* Manage Join State.
*/
CWStateTransition CWWTPEnterJoin()
{
CWTimerID waitJoinTimer;
int seqNum;
CWProtocolJoinResponseValues values;
CWStateTransition state = CW_ENTER_DISCOVERY;
CWDebugLog("Checking if hostapd is connected...");
if (gRADIO_MAC[0] == 0xAA){
CWDebugLog("Waiting for hostapd to connect...");
while(gRADIO_MAC[0] == 0xAA) sleep(1);
}
else {
CWDebugLog("Hostapd is connected...");
}
CWDebugLog("\n");
CWDebugLog("######### Join State #########");
/* reset Join state */
CWNetworkCloseSocket(gWTPSocket);
#ifndef CW_NO_DTLS
CWSecurityDestroySession(gWTPSession);
CWSecurityDestroyContext(gWTPSecurityContext);
#endif
gWTPSecurityContext = NULL;
gWTPSession = NULL;
/* Initialize gACInfoPtr */
gACInfoPtr = malloc(sizeof(CWACInfoValues));
gACInfoPtr->ACIPv4ListInfo.ACIPv4ListCount = 0;
gACInfoPtr->ACIPv4ListInfo.ACIPv4List = NULL;
gACInfoPtr->ACIPv6ListInfo.ACIPv6ListCount = 0;
gACInfoPtr->ACIPv6ListInfo.ACIPv6List = NULL;
CWDebugLog("State is %d", state);
if (gWTPForceACAddress != NULL) {
CW_CREATE_OBJECT_ERR(gACInfoPtr, CWACInfoValues, return CWErrorRaise(CW_ERROR_OUT_OF_MEMORY, NULL);
);
/*
* Manage Discovery State
*/
CWStateTransition CWWTPEnterDiscovery()
{
int i;
CWBool j;
CWLog("\n");
CWLog("######### Discovery State #########");
/* reset Discovery state */
gCWDiscoveryCount = 0;
CWNetworkCloseSocket(gWTPSocket);
if (!CWErr(CWNetworkInitSocketClient(&gWTPSocket, NULL))) {
return CW_QUIT;
}
/*
* note: gCWACList can be freed and reallocated (reading from config file)
* at each transition to the discovery state to save memory space
*/
for (i = 0; i < gCWACCount; i++)
gCWACList[i].received = CW_FALSE;
/* wait a random time */
sleep(CWRandomIntInRange(gCWDiscoveryInterval, gCWMaxDiscoveryInterval));
CW_REPEAT_FOREVER {
CWBool sentSomething = CW_FALSE;
/* we get no responses for a very long time */
if (gCWDiscoveryCount == gCWMaxDiscoveries)
return CW_ENTER_SULKING;
/* send Requests to one or more ACs */
for (i = 0; i < gCWACCount; i++) {
/* if this AC hasn't responded to us... */
if (!(gCWACList[i].received)) {
/* ...send a Discovery Request */
CWProtocolMessage *msgPtr = NULL;
/* get sequence number (and increase it) */
gCWACList[i].seqNum = CWGetSeqNum();
if (!CWErr(CWAssembleDiscoveryRequest(&msgPtr, gCWACList[i].seqNum))) {
exit(1);
}
CW_CREATE_OBJECT_ERR(gACInfoPtr, CWACInfoValues, return CW_QUIT;
);
CWNetworkGetAddressForHost(gCWACList[i].address, &(gACInfoPtr->preferredAddress));
CWUseSockNtop(&(gACInfoPtr->preferredAddress), CWDebugLog(str);
);
j = CWErr(CWNetworkSendUnsafeUnconnected(gWTPSocket,
&(gACInfoPtr->preferredAddress),
(*msgPtr).msg, (*msgPtr).offset));
/*
* log eventual error and continue
* CWUseSockNtop(&(gACInfoPtr->preferredAddress),
* CWLog("WTP sends Discovery Request to: %s", str););
*/
CW_FREE_PROTOCOL_MESSAGE(*msgPtr);
CW_FREE_OBJECT(msgPtr);
CW_FREE_OBJECT(gACInfoPtr);
/*
* we sent at least one Request in this loop
* (even if we got an error sending it)
*/
sentSomething = CW_TRUE;
}
