void Peer::terminate()
{
terminateStatusOn();
terminateReceiverThread();
terminateQueueReads();
#ifndef DISABLE_LIBNICE
nice.quit();
#endif
for (descriptor_pair desc : knownPeers.getAllDescriptors()) {
if (desc.type == DESCRIPTOR_SOCK) {
close(desc.desc);
} else if (desc.type == DESCRIPTOR_NICE) {
// terminating the NiceAgent object is enough
}
}
if (coordinatorFd >= 0) {
close(coordinatorFd);
}
}
static void *receiveBundles(void *parm)
{
/* Main loop for bundle reception thread on one
* connection, terminating when connection is lost. */
ReceiverThreadParms *parms = (ReceiverThreadParms *) parm;
char *procName = "brsscla";
time_t currentTime;
unsigned char sdnvText[10];
int sdnvLength = 0;
unsigned int ductNbr;
uvast val;
int senderSocket;
char registration[24];
time_t timeTag;
char keyName[32];
char key[DIGEST_LEN];
int keyBufLen = sizeof key;
int keyLen;
char errtext[300];
char digest[DIGEST_LEN];
AcqWorkArea *work;
char *buffer;
currentTime = time(NULL);
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
memset(sdnvText, 0, sizeof sdnvText);
/* Get duct number, expressed as an SDNV. */
while (1)
{
switch (receiveBytesByTCP(parms->bundleSocket,
(char *) (sdnvText + sdnvLength), 1))
{
case 1:
break; /* Out of switch. */
case -1:
putErrmsg("Can't get duct number.", NULL);
/* Intentional fall-through. */
default: /* Inauthentic. */
*parms->authenticated = 1;
terminateReceiverThread(parms);
return NULL;
}
if ((*(sdnvText + sdnvLength) & 0x80) == 0)
{
break; /* Out of loop. */
}
sdnvLength++;
if (sdnvLength < 10)
{
continue;
}
putErrmsg("Duct number SDNV is too long.", NULL);
*parms->authenticated = 1; /* Inauthentic. */
terminateReceiverThread(parms);
return NULL;
}
oK(decodeSdnv(&val, sdnvText));
ductNbr = val;
if (ductNbr < parms->baseDuctNbr || ductNbr > parms->lastDuctNbr)
{
putErrmsg("Duct number is too large.", utoa(ductNbr));
*parms->authenticated = 1; /* Inauthentic. */
terminateReceiverThread(parms);
return NULL;
}
parms->ductNbr = ductNbr;
senderSocket = ductNbr - parms->baseDuctNbr;
if (parms->brsSockets[senderSocket] != -1)
{
putErrmsg("Client is already connected.", utoa(ductNbr));
*parms->authenticated = 1; /* Inauthentic. */
terminateReceiverThread(parms);
return NULL;
}
isprintf(keyName, sizeof keyName, "%u.brs", ductNbr);
keyLen = sec_get_key(keyName, &keyBufLen, key);
if (keyLen == 0)
{
putErrmsg("Can't get HMAC key for duct.", keyName);
*parms->authenticated = 1; /* Inauthentic. */
terminateReceiverThread(parms);
return NULL;
}
/* Get time tag and its HMAC-SHA1 digest. */
switch (receiveBytesByTCP(parms->bundleSocket, registration,
REGISTRATION_LEN))
{
case REGISTRATION_LEN:
break; /* Out of switch. */
case -1:
putErrmsg("Can't get registration.", NULL);
/* Intentional fall-through to next case. */
default:
*parms->authenticated = 1;
terminateReceiverThread(parms);
return NULL;
}
memcpy((char *) &timeTag, registration, 4);
timeTag = ntohl(timeTag);
if (timeTag - currentTime > BRSTERM || currentTime - timeTag > BRSTERM)
{
isprintf(errtext, sizeof errtext, "[?] Registration rejected: \
time tag is %u, must be between %u and %u.", (unsigned int) timeTag,
(unsigned int) (currentTime - BRSTERM),
(unsigned int) (currentTime + BRSTERM));
writeMemo(errtext);
*parms->authenticated = 1; /* Inauthentic. */
terminateReceiverThread(parms);
return NULL;
}
