void networkStatusChangeNotif(unsigned int assocID, short destAddrIndex, unsigned short newState, void* ulpDataPtr)
{
SCTP_AssociationStatus assocStatus;
SCTP_PathStatus pathStatus;
unsigned short pathID;
if (verbose) {
sprintf(tstr, "%-8x: Network status change: path %u is now %s\n",
assocID, destAddrIndex, ((newState == SCTP_PATH_OK) ? "ACTIVE" : "INACTIVE"));
waddstr(statusWin,tstr);
wrefresh(statusWin);
}
/* if the primary path has become inactive */
if ((newState == SCTP_PATH_UNREACHABLE) &&
(destAddrIndex == sctp_getPrimary(assocID))) {
/* select a new one */
sctp_getAssocStatus(assocID, &assocStatus);
for (pathID=0; pathID < assocStatus.numberOfAddresses; pathID++){
sctp_getPathStatus(assocID, pathID, &pathStatus);
if (pathStatus.state == SCTP_PATH_OK)
break;
}
/* and use it */
if (pathID < assocStatus.numberOfAddresses) {
sctp_setPrimary(assocID, pathID);
getDestinationIPaddr((char *)peeraddr);
}
}
}
void networkStatusChangeNotif(unsigned int assocID, short destAddrIndex, unsigned short newState, void* ulpDataPtr)
{
SCTP_AssociationStatus assocStatus;
SCTP_PathStatus pathStatus;
unsigned short pathID;
sctp_getPathStatus(assocID, destAddrIndex , &pathStatus);
sprintf(statusInfo, " Association ID =%-8x: Network status change: path %u (towards %s) is now %s\n",
assocID, destAddrIndex, pathStatus.destinationAddress, pathStateName(newState));
waddstr(statusWin,statusInfo);
wrefresh(statusWin);
/* if the primary path has become inactive */
if ((newState == SCTP_PATH_UNREACHABLE) &&
(destAddrIndex == sctp_getPrimary(assocID))) {
sctp_getAssocStatus(assocID, &assocStatus);
for (pathID=0; pathID < assocStatus.numberOfAddresses; pathID++)
{
sctp_getPathStatus(assocID, pathID, &pathStatus);
if (pathStatus.state == SCTP_PATH_OK)
{
break;
}
}
/* and use it */
if (pathID < assocStatus.numberOfAddresses)
{
sctp_setPrimary(assocID, pathID);
}
}
/* Display functions */
ncurses_display_AssocStatus(assocID);
displayPathDetails = 0;
ncurses_display_PathStatus(assocID);
}
void getDestinationIPaddr(char paddr[SCTP_MAX_IP_LEN])
/*This routine copies the IP address of the primary path into an array paddr */
{
SCTP_PathStatus pathStatus;
int i, pathID;
pathID = sctp_getPrimary(associationID);
sctp_getPathStatus(associationID, pathID, &pathStatus);
strcpy((char *)paddr, (const char *)pathStatus.destinationAddress);
/* refreshes the ncurses window with the new IP address */
mvwaddstr(peerWinStatus, 0, 0, paddr);
for (i=strlen(paddr);i<COLS-3;i++)
mvwaddch(peerWinStatus,0,i,'-');
wrefresh(peerWinStatus);
wrefresh(statusWin);
}
int
SCTP_getPathStatus(unsigned int associationID, short path_id, SCTP_PathStatus* status)
{
int result;
if ((result = sctp_getPathStatus(associationID, path_id, status)) != 0) {
if (result == SCTP_LIBRARY_NOT_INITIALIZED) {
fprintf(stderr, "sctp_getP: library not initialized.\n");
} else
if (result == SCTP_ASSOC_NOT_FOUND) {
fprintf(stderr, ": association not found.\n");
} else
if (result == SCTP_PARAMETER_PROBLEM) {
fprintf(stderr, ": Path Id invalid.\n");
} else {
fprintf(stderr, "sctp_getPathStatus: error value (%i) returned.\n", result);
fflush(stderr);
}
}
return result;
}
/* This function reads the input from the parameters of the SCTP_PathStatus structure
and displays the data on a window of ncurses. */
void ncurses_display_PathStatus(unsigned int assocID)
{
SCTP_AssociationStatus assocStatus;
SCTP_PathStatus pathStatus;
unsigned short pathID;
unsigned int Rto[SCTP_MAX_NUM_ADDRESSES], HB_Interval[SCTP_MAX_NUM_ADDRESSES];
unsigned int SRTT[SCTP_MAX_NUM_ADDRESSES],RTTVar[SCTP_MAX_NUM_ADDRESSES];
unsigned int SlowStThres[SCTP_MAX_NUM_ADDRESSES], PartBytesAck[SCTP_MAX_NUM_ADDRESSES];
unsigned int CongestWin[SCTP_MAX_NUM_ADDRESSES],CongestWin2[SCTP_MAX_NUM_ADDRESSES];
unsigned int MTU[SCTP_MAX_NUM_ADDRESSES], OutBytesPerAddr[SCTP_MAX_NUM_ADDRESSES];
short State[SCTP_MAX_NUM_ADDRESSES];
char destaddr[SCTP_MAX_NUM_ADDRESSES][SCTP_MAX_IP_LEN];
unsigned char IPTos[SCTP_MAX_NUM_ADDRESSES];
wclear(pathWin);
wrefresh(pathWin);
sctp_getAssocStatus(assocID, &assocStatus);
for (pathID=0; pathID < assocStatus.numberOfAddresses; pathID++)
{
sctp_getPathStatus(assocID, pathID, &pathStatus);
strcpy((char *)destaddr[pathID], (const char *)pathStatus.destinationAddress);
State[pathID] = pathStatus.state;
Rto[pathID] = pathStatus.rto;
HB_Interval[pathID] = pathStatus.heartbeatIntervall;
SRTT[pathID] = pathStatus.srtt;
RTTVar[pathID] = pathStatus.rttvar;
SlowStThres[pathID] = pathStatus.ssthresh;
PartBytesAck[pathID] = pathStatus.partialBytesAcked;
CongestWin[pathID] = pathStatus.cwnd;
CongestWin2[pathID] = pathStatus.cwnd2;
MTU[pathID] = pathStatus.mtu;
OutBytesPerAddr[pathID] = pathStatus.outstandingBytesPerAddress;
IPTos[pathID] = pathStatus.ipTos;
if (displayPathDetails == 0)
{
/* Check if the current path is the primary path */
if (pathID == sctp_getPrimary(assocID))
{
sprintf(pathInfo," Primary Path ID : %d, state of path : %s\n",
pathID, pathStateName(State[pathID]));
waddstr(pathWin,pathInfo);
wrefresh(pathWin);
}
else
{
sprintf(pathInfo," Path ID : %d, state of path : %s\n",
pathID, pathStateName(State[pathID]));
waddstr(pathWin,pathInfo);
wrefresh(pathWin);
}
}
else if (displayPathDetails == 1)
{
mvwaddstr(pathWin,0,0,"[Hit Backspace to return to main menu]\n");
wrefresh(pathWin);
if (pathID == chosenPath)
{
sprintf(pathInfo,"\n Path ID : %d, State of path : %s\t\t Destination address : %s\n Heartbeat Interval : %-8u\t\t Retransmisson time(msecs) : %-8d\n Smooth Round Trip time(msecs) : %-8d\t Round Trip time Variations(msecs) : %-8d\n Slow start threshold : %-8d\t\t Congestion Window Size : %-8d\n Outstanding Bytes per Address : %-8d\t Congestion Window Size 2 : %-8d\n Partial bytes acknowledge : %-8d\t\t IP type of service : %x\n MTU : %d bytes\n\n",
pathID, pathStateName(State[pathID]),
destaddr[pathID],HB_Interval[pathID],Rto[pathID],
SRTT[pathID],RTTVar[pathID],SlowStThres[pathID],CongestWin[pathID],
OutBytesPerAddr[pathID], CongestWin2[pathID],PartBytesAck[pathID],
IPTos[pathID],MTU[pathID]);
waddstr(pathWin,pathInfo);
wrefresh(pathWin);
}
}
}
wrefresh(textWin);
displayPathDetails = 0;
}
