int EXPORT_CC
libxrdp_process_data(struct xrdp_session* session)
{
int cont;
int rv;
int code;
int term;
int dead_lock_counter;
term = 0;
cont = 1;
rv = 0;
dead_lock_counter = 0;
while ((cont || !session->up_and_running) && !term)
{
if (session->is_term != 0)
{
if (session->is_term())
{
term = 1;
}
}
code = 0;
if (xrdp_rdp_recv((struct xrdp_rdp*)(session->rdp),
session->s, &code) != 0)
{
rv = 1;
break;
}
DEBUG(("libxrdp_process_data code %d", code));
switch (code)
{
case -1:
xrdp_rdp_send_demand_active((struct xrdp_rdp*)session->rdp);
session->up_and_running = 0;
break;
case 0:
dead_lock_counter++;
break;
case RDP_PDU_CONFIRM_ACTIVE: /* 3 */
xrdp_rdp_process_confirm_active((struct xrdp_rdp*)session->rdp,
session->s);
break;
case RDP_PDU_DATA: /* 7 */
if (xrdp_rdp_process_data((struct xrdp_rdp*)session->rdp,
session->s) != 0)
{
DEBUG(("libxrdp_process_data returned non zero"));
cont = 0;
term = 1;
}
break;
default:
g_writeln("unknown in libxrdp_process_data");
dead_lock_counter++;
break;
}
if (dead_lock_counter > 100000)
{
/*This situation can happen and this is a workaround*/
cont = 0;
g_writeln("Serious programming error we were locked in a deadly loop") ;
g_writeln("remaining :%d",session->s->end-session->s->next_packet);
session->s->next_packet = 0;
}
if (cont)
{
cont = (session->s->next_packet != 0) &&
(session->s->next_packet < session->s->end);
}
}
return rv;
}
int EXPORT_CC
libxrdp_process_data(struct xrdp_session *session, struct stream *s)
{
int cont;
int rv;
int code;
int term;
int dead_lock_counter;
int do_read;
struct xrdp_rdp *rdp;
do_read = s == 0;
if (do_read && session->up_and_running)
{
g_writeln("libxrdp_process_data: error logic");
return 1;
}
if (session->in_process_data != 0)
{
g_writeln("libxrdp_process_data: error reentry");
return 1;
}
session->in_process_data++;
term = 0;
cont = 1;
rv = 0;
dead_lock_counter = 0;
rdp = (struct xrdp_rdp *) (session->rdp);
while ((cont || !session->up_and_running) && !term)
{
if (session->is_term != 0)
{
if (session->is_term())
{
term = 1;
break;
}
}
code = 0;
if (do_read)
{
if (s == 0)
{
s = libxrdp_force_read(session->trans);
}
else
{
if ((s->next_packet == 0) || (s->next_packet >= s->end))
{
s = libxrdp_force_read(session->trans);
}
}
if (s == 0)
{
g_writeln("libxrdp_process_data: libxrdp_force_read failed");
rv = 1;
break;
}
}
if (xrdp_rdp_recv(rdp, s, &code) != 0)
{
g_writeln("libxrdp_process_data: xrdp_rdp_recv failed");
rv = 1;
break;
}
DEBUG(("libxrdp_process_data code %d", code));
switch (code)
{
case -1:
xrdp_caps_send_demand_active(rdp);
session->up_and_running = 0;
break;
case 0:
dead_lock_counter++;
break;
case RDP_PDU_CONFIRM_ACTIVE: /* 3 */
xrdp_caps_process_confirm_active(rdp, s);
break;
case RDP_PDU_DATA: /* 7 */
if (xrdp_rdp_process_data(rdp, s) != 0)
{
DEBUG(("libxrdp_process_data returned non zero"));
cont = 0;
term = 1;
}
break;
case 2: /* FASTPATH_INPUT_EVENT */
if (xrdp_fastpath_process_input_event(rdp->sec_layer->fastpath_layer, s) != 0)
{
DEBUG(("libxrdp_process_data returned non zero"));
cont = 0;
term = 1;
}
break;
default:
g_writeln("unknown in libxrdp_process_data: code= %d", code);
dead_lock_counter++;
break;
}
if (dead_lock_counter > 100000)
{
/*This situation can happen and this is a workaround*/
cont = 0;
g_writeln("Serious programming error we were locked in a deadly loop") ;
g_writeln("remaining :%d", s->end - s->next_packet);
s->next_packet = 0;
}
if (cont)
{
cont = (s->next_packet != 0) && (s->next_packet < s->end);
}
}
session->in_process_data--;
return rv;
}
int EXPORT_CC
libxrdp_process_data(struct xrdp_session* session)
{
int cont;
int rv;
int code;
int term;
tui8 header;
term = 0;
cont = 1;
rv = 0;
while ((cont || !session->up_and_running) && !term)
{
if (session->is_term != 0)
{
if (session->is_term())
{
term = 1;
}
}
code = 0;
if (xrdp_rdp_recv((struct xrdp_rdp*)session->rdp, session->s, &code) != 0)
{
rv = 1;
break;
}
DEBUG(("libxrdp_process_data code %d", code));
switch (code)
{
case -1:
xrdp_rdp_send_demand_active((struct xrdp_rdp*)session->rdp);
session->up_and_running = 0;
break;
case 0:
break;
case RDP_PDU_CONFIRM_ACTIVE: /* 3 */
xrdp_rdp_process_confirm_active((struct xrdp_rdp*)session->rdp,
session->s);
break;
case RDP_PDU_DATA: /* 7 */
//g_writeln("%08x %08x %08x %08x\n",*(tui32*)session->s->p, *(tui32*)(session->s->p+4),
// *(tui32*)(session->s->p+8),*(tui32*)(session->s->p+12));
if (xrdp_rdp_process_data((struct xrdp_rdp*)session->rdp,
session->s) != 0)
{
DEBUG(("libxrdp_process_data returned non zero"));
cont = 0;
term = 1;
}
break;
default:
g_writeln("unknown in libxrdp_process_data");
break;
}
if (cont)
{
cont = (session->s->next_packet != 0) &&
(session->s->next_packet < session->s->end);
}
}
return rv;
}
