/*
* Xtrans wrappers for use by modules
*/
int
XaceGetConnectionNumber(ClientPtr client)
{
XtransConnInfo ci = ((OsCommPtr) client->osPrivate)->trans_conn;
return _XSERVTransGetConnectionNumber(ci);
}
void
ResetWellKnownSockets (void)
{
int i;
ResetOsBuffers();
for (i = 0; i < ListenTransCount; i++)
{
int status = _XSERVTransResetListener (ListenTransConns[i]);
if (status != TRANS_RESET_NOOP)
{
if (status == TRANS_RESET_FAILURE)
{
/*
* ListenTransConns[i] freed by xtrans.
* Remove it from out list.
*/
FD_CLR (ListenTransFds[i], &WellKnownConnections);
ListenTransFds[i] = ListenTransFds[ListenTransCount - 1];
ListenTransConns[i] = ListenTransConns[ListenTransCount - 1];
ListenTransCount -= 1;
i -= 1;
}
else if (status == TRANS_RESET_NEW_FD)
{
/*
* A new file descriptor was allocated (the old one was closed)
*/
int newfd = _XSERVTransGetConnectionNumber (ListenTransConns[i]);
FD_CLR (ListenTransFds[i], &WellKnownConnections);
ListenTransFds[i] = newfd;
FD_SET(newfd, &WellKnownConnections);
}
}
}
ResetAuthorization ();
ResetHosts(display);
/*
* restart XDMCP
*/
#ifdef XDMCP
XdmcpReset ();
#endif
}
static void
ErrorConnMax(XtransConnInfo trans_conn)
{
int fd = _XSERVTransGetConnectionNumber (trans_conn);
xConnSetupPrefix csp;
char pad[3];
struct iovec iov[3];
char byteOrder = 0;
int whichbyte = 1;
struct timeval waittime;
fd_set mask;
/* if these seems like a lot of trouble to go to, it probably is */
waittime.tv_sec = BOTIMEOUT / MILLI_PER_SECOND;
waittime.tv_usec = (BOTIMEOUT % MILLI_PER_SECOND) *
(1000000 / MILLI_PER_SECOND);
FD_ZERO(&mask);
FD_SET(fd, &mask);
(void)Select(fd + 1, &mask, NULL, NULL, &waittime);
/* try to read the byte-order of the connection */
(void)_XSERVTransRead(trans_conn, &byteOrder, 1);
if ((byteOrder == 'l') || (byteOrder == 'B'))
{
csp.success = xFalse;
csp.lengthReason = sizeof(NOROOM) - 1;
csp.length = (sizeof(NOROOM) + 2) >> 2;
csp.majorVersion = X_PROTOCOL;
csp.minorVersion = X_PROTOCOL_REVISION;
if (((*(char *) &whichbyte) && (byteOrder == 'B')) ||
(!(*(char *) &whichbyte) && (byteOrder == 'l')))
{
swaps(&csp.majorVersion, whichbyte);
swaps(&csp.minorVersion, whichbyte);
swaps(&csp.length, whichbyte);
}
iov[0].iov_len = sz_xConnSetupPrefix;
iov[0].iov_base = (char *) &csp;
iov[1].iov_len = csp.lengthReason;
iov[1].iov_base = NOROOM;
iov[2].iov_len = (4 - (csp.lengthReason & 3)) & 3;
iov[2].iov_base = pad;
(void)_XSERVTransWritev(trans_conn, iov, 3);
}
/*ARGSUSED*/
Bool
EstablishNewConnections(ClientPtr clientUnused, pointer closure)
{
fd_set readyconnections; /* set of listeners that are ready */
int curconn; /* fd of listener that's ready */
register int newconn; /* fd of new client */
CARD32 connect_time;
register int i;
register ClientPtr client;
register OsCommPtr oc;
fd_set tmask;
XFD_ANDSET (&tmask, (fd_set*)closure, &WellKnownConnections);
XFD_COPYSET(&tmask, &readyconnections);
if (!XFD_ANYSET(&readyconnections))
return TRUE;
connect_time = GetTimeInMillis();
/* kill off stragglers */
for (i=1; i<currentMaxClients; i++)
{
if ((client = clients[i]))
{
oc = (OsCommPtr)(client->osPrivate);
if ((oc && (oc->conn_time != 0) &&
(connect_time - oc->conn_time) >= TimeOutValue) ||
(client->noClientException != Success && !client->clientGone))
CloseDownClient(client);
}
}
#ifndef WIN32
for (i = 0; i < howmany(XFD_SETSIZE, NFDBITS); i++)
{
while (readyconnections.fds_bits[i])
#else
for (i = 0; i < XFD_SETCOUNT(&readyconnections); i++)
#endif
{
XtransConnInfo trans_conn, new_trans_conn;
int status;
#ifndef WIN32
curconn = mffs (readyconnections.fds_bits[i]) - 1;
readyconnections.fds_bits[i] &= ~((fd_mask)1 << curconn);
curconn += (i * (sizeof(fd_mask)*8));
#else
curconn = XFD_FD(&readyconnections, i);
#endif
if ((trans_conn = lookup_trans_conn (curconn)) == NULL)
continue;
if ((new_trans_conn = _XSERVTransAccept (trans_conn, &status)) == NULL)
continue;
newconn = _XSERVTransGetConnectionNumber (new_trans_conn);
if (newconn < lastfdesc)
{
int clientid;
#if !defined(WIN32)
clientid = ConnectionTranslation[newconn];
#else
clientid = GetConnectionTranslation(newconn);
#endif
if(clientid && (client = clients[clientid]))
CloseDownClient(client);
}
_XSERVTransSetOption(new_trans_conn, TRANS_NONBLOCKING, 1);
if (!AllocNewConnection (new_trans_conn, newconn, connect_time))
{
ErrorConnMax(new_trans_conn);
_XSERVTransClose(new_trans_conn);
}
if(trans_conn->flags & TRANS_NOXAUTH)
new_trans_conn->flags = new_trans_conn->flags | TRANS_NOXAUTH;
}
#ifndef WIN32
}
#endif
return TRUE;
}
void
CreateWellKnownSockets(void)
{
int i;
int partial;
char port[20];
FD_ZERO(&AllSockets);
FD_ZERO(&AllClients);
FD_ZERO(&LastSelectMask);
FD_ZERO(&ClientsWithInput);
#if !defined(WIN32)
for (i=0; i<MaxClients; i++) ConnectionTranslation[i] = 0;
#else
ClearConnectionTranslation();
#endif
FD_ZERO (&WellKnownConnections);
sprintf (port, "%d", atoi (display));
if ((_XSERVTransMakeAllCOTSServerListeners (port, &partial,
&ListenTransCount, &ListenTransConns) >= 0) &&
(ListenTransCount >= 1))
{
if (!PartialNetwork && partial)
{
FatalError ("Failed to establish all listening sockets");
}
else
{
ListenTransFds = xalloc (ListenTransCount * sizeof (int));
for (i = 0; i < ListenTransCount; i++)
{
int fd = _XSERVTransGetConnectionNumber (ListenTransConns[i]);
ListenTransFds[i] = fd;
FD_SET (fd, &WellKnownConnections);
if (!_XSERVTransIsLocal (ListenTransConns[i]))
{
DefineSelf (fd);
}
}
}
}
if (!XFD_ANYSET (&WellKnownConnections))
FatalError ("Cannot establish any listening sockets - Make sure an X server isn't already running");
#if !defined(WIN32)
OsSignal (SIGPIPE, SIG_IGN);
OsSignal (SIGHUP, AutoResetServer);
#endif
OsSignal (SIGINT, GiveUp);
OsSignal (SIGTERM, GiveUp);
XFD_COPYSET (&WellKnownConnections, &AllSockets);
ResetHosts(display);
InitParentProcess();
#ifdef XDMCP
XdmcpInit ();
#endif
}
void
CreateWellKnownSockets(void)
{
int i;
int partial;
FD_ZERO(&AllSockets);
FD_ZERO(&AllClients);
FD_ZERO(&LastSelectMask);
FD_ZERO(&ClientsWithInput);
#if !defined(WIN32)
for (i = 0; i < MaxClients; i++)
ConnectionTranslation[i] = 0;
#else
ClearConnectionTranslation();
#endif
FD_ZERO(&WellKnownConnections);
/* display is initialized to "0" by main(). It is then set to the display
* number if specified on the command line. */
if (NoListenAll) {
ListenTransCount = 0;
}
else if ((displayfd < 0) || explicit_display) {
if (TryCreateSocket(atoi(display), &partial) &&
ListenTransCount >= 1)
if (!PartialNetwork && partial)
FatalError ("Failed to establish all listening sockets");
}
else { /* -displayfd and no explicit display number */
Bool found = 0;
for (i = 0; i < 65536 - X_TCP_PORT; i++) {
if (TryCreateSocket(i, &partial) && ListenTransCount >= 1 && (PartialNetwork || !partial)) {
found = 1;
break;
}
else
CloseWellKnownConnections();
}
if (!found)
FatalError("Failed to find a socket to listen on");
dynamic_display_id=i;
snprintf(dynamic_display, sizeof(dynamic_display), "%d", i);
display = dynamic_display;
}
ListenTransFds = xallocarray(ListenTransCount, sizeof (int));
if (ListenTransFds == NULL)
FatalError ("Failed to create listening socket array");
for (i = ListenTransCount; i > 0; i--) {
int fd = _XSERVTransGetConnectionNumber (ListenTransConns[i-1]);
ListenTransFds[i-1] = fd;
FD_SET(fd, &WellKnownConnections);
if (!_XSERVTransIsLocal (ListenTransConns[i-1])) {
int protocol = 0;
if (!strcmp("inet", ListenTransConns[i-1]->transptr->TransName)) protocol = 4;
else if (!strcmp("inet6", ListenTransConns[i-1]->transptr->TransName)) protocol = 6;
DefineSelf (fd, protocol);
}
}
if (!XFD_ANYSET(&WellKnownConnections) && !NoListenAll)
FatalError
("Cannot establish any listening sockets - Make sure an X server isn't already running");
#if !defined(WIN32)
OsSignal(SIGPIPE, SIG_IGN);
OsSignal(SIGHUP, AutoResetServer);
#endif
OsSignal(SIGINT, GiveUp);
OsSignal(SIGTERM, GiveUp);
XFD_COPYSET(&WellKnownConnections, &AllSockets);
ResetHosts(display);
InitParentProcess();
#ifdef XDMCP
XdmcpInit();
#endif
}
void
CreateWellKnownSockets(void)
{
int i;
int partial;
FD_ZERO(&AllSockets);
FD_ZERO(&AllClients);
FD_ZERO(&LastSelectMask);
FD_ZERO(&ClientsWithInput);
#if !defined(WIN32)
for (i = 0; i < MaxClients; i++)
ConnectionTranslation[i] = 0;
#else
ClearConnectionTranslation();
#endif
FD_ZERO(&WellKnownConnections);
/* display is initialized to "0" by main(). It is then set to the display
* number if specified on the command line, or to NULL when the -displayfd
* option is used. */
if (display) {
if (TryCreateSocket(atoi(display), &partial) &&
ListenTransCount >= 1)
if (!PartialNetwork && partial)
FatalError ("Failed to establish all listening sockets");
}
else { /* -displayfd */
Bool found = 0;
for (i = 0; i < 65535 - X_TCP_PORT; i++) {
if (TryCreateSocket(i, &partial) && !partial) {
found = 1;
break;
}
else
CloseWellKnownConnections();
}
if (!found)
FatalError("Failed to find a socket to listen on");
snprintf(dynamic_display, sizeof(dynamic_display), "%d", i);
display = dynamic_display;
}
ListenTransFds = malloc(ListenTransCount * sizeof (int));
for (i = 0; i < ListenTransCount; i++) {
int fd = _XSERVTransGetConnectionNumber(ListenTransConns[i]);
ListenTransFds[i] = fd;
FD_SET(fd, &WellKnownConnections);
if (!_XSERVTransIsLocal(ListenTransConns[i]))
DefineSelf (fd);
}
if (!XFD_ANYSET(&WellKnownConnections))
FatalError
("Cannot establish any listening sockets - Make sure an X server isn't already running");
#if !defined(WIN32)
OsSignal(SIGPIPE, SIG_IGN);
OsSignal(SIGHUP, AutoResetServer);
#endif
OsSignal(SIGINT, GiveUp);
OsSignal(SIGTERM, GiveUp);
XFD_COPYSET(&WellKnownConnections, &AllSockets);
ResetHosts(display);
InitParentProcess();
#ifdef XDMCP
XdmcpInit();
#endif
}