1 |
#include <unistd.h> |
#include <unistd.h> |
2 |
#include <sys/types.h> |
#include <sys/types.h> |
3 |
|
#include <sys/time.h> |
4 |
#include <time.h> |
#include <time.h> |
5 |
#include "rdesktop.h" |
#include "rdesktop.h" |
6 |
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|
23 |
#define IRP_MN_QUERY_DIRECTORY 0x01 |
#define IRP_MN_QUERY_DIRECTORY 0x01 |
24 |
#define IRP_MN_NOTIFY_CHANGE_DIRECTORY 0x02 |
#define IRP_MN_NOTIFY_CHANGE_DIRECTORY 0x02 |
25 |
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#define MAX_ASYNC_IO_REQUESTS 10 |
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26 |
extern char hostname[16]; |
extern char hostname[16]; |
27 |
extern DEVICE_FNS serial_fns; |
extern DEVICE_FNS serial_fns; |
28 |
extern DEVICE_FNS printer_fns; |
extern DEVICE_FNS printer_fns; |
29 |
extern DEVICE_FNS parallel_fns; |
extern DEVICE_FNS parallel_fns; |
30 |
extern DEVICE_FNS disk_fns; |
extern DEVICE_FNS disk_fns; |
31 |
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32 |
static VCHANNEL *rdpdr_channel; |
static VCHANNEL *rdpdr_channel; |
33 |
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|
34 |
/* If select() times out, the request for the device with handle g_min_timeout_fd is aborted */ |
/* If select() times out, the request for the device with handle g_min_timeout_fd is aborted */ |
39 |
RDPDR_DEVICE g_rdpdr_device[RDPDR_MAX_DEVICES]; |
RDPDR_DEVICE g_rdpdr_device[RDPDR_MAX_DEVICES]; |
40 |
|
|
41 |
/* Used to store incoming io request, until they are ready to be completed */ |
/* Used to store incoming io request, until they are ready to be completed */ |
42 |
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/* using a linked list ensures that they are processed in the right order, */ |
43 |
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/* if multiple ios are being done on the same fd */ |
44 |
struct async_iorequest |
struct async_iorequest |
45 |
{ |
{ |
46 |
uint32 fd, major, minor, offset, device, id, length; |
uint32 fd, major, minor, offset, device, id, length, partial_len; |
47 |
long timeout, /* Total timeout */ |
long timeout, /* Total timeout */ |
48 |
itv_timeout; /* Interval timeout (between serial characters) */ |
itv_timeout; /* Interval timeout (between serial characters) */ |
49 |
uint8 *buffer; |
uint8 *buffer; |
50 |
DEVICE_FNS *fns; |
DEVICE_FNS *fns; |
51 |
} g_iorequest[MAX_ASYNC_IO_REQUESTS]; |
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52 |
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struct async_iorequest *next; /* next element in list */ |
53 |
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}; |
54 |
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55 |
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struct async_iorequest *g_iorequest; |
56 |
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|
57 |
/* Return device_id for a given handle */ |
/* Return device_id for a given handle */ |
58 |
int |
int |
82 |
/* Add a new io request to the table containing pending io requests so it won't block rdesktop */ |
/* Add a new io request to the table containing pending io requests so it won't block rdesktop */ |
83 |
BOOL |
BOOL |
84 |
add_async_iorequest(uint32 device, uint32 file, uint32 id, uint32 major, uint32 length, |
add_async_iorequest(uint32 device, uint32 file, uint32 id, uint32 major, uint32 length, |
85 |
DEVICE_FNS * fns, long total_timeout, long interval_timeout, uint8 * buffer) |
DEVICE_FNS * fns, uint32 total_timeout, uint32 interval_timeout, uint8 * buffer) |
86 |
{ |
{ |
|
int i; |
|
87 |
struct async_iorequest *iorq; |
struct async_iorequest *iorq; |
88 |
|
|
89 |
for (i = 0; i < MAX_ASYNC_IO_REQUESTS; i++) |
if (g_iorequest == NULL) |
90 |
{ |
{ |
91 |
iorq = &g_iorequest[i]; |
g_iorequest = (struct async_iorequest *) xmalloc(sizeof(struct async_iorequest)); |
92 |
|
if (!g_iorequest) |
93 |
if (iorq->fd == 0) |
return False; |
94 |
{ |
g_iorequest->fd = 0; |
95 |
iorq->device = device; |
g_iorequest->next = NULL; |
96 |
iorq->fd = file; |
} |
97 |
iorq->id = id; |
|
98 |
iorq->major = major; |
iorq = g_iorequest; |
99 |
iorq->length = length; |
|
100 |
iorq->fns = fns; |
while (iorq->fd != 0) |
101 |
iorq->timeout = total_timeout; |
{ |
102 |
iorq->itv_timeout = interval_timeout; |
// create new element if needed |
103 |
iorq->buffer = buffer; |
if (iorq->next == NULL) |
104 |
return True; |
{ |
105 |
} |
iorq->next = |
106 |
} |
(struct async_iorequest *) xmalloc(sizeof(struct async_iorequest)); |
107 |
error("IO request table full. Increase MAX_ASYNC_IO_REQUESTS in rdpdr.c!\n"); |
if (!iorq->next) |
108 |
return False; |
return False; |
109 |
|
iorq->next->fd = 0; |
110 |
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iorq->next->next = NULL; |
111 |
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} |
112 |
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iorq = iorq->next; |
113 |
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} |
114 |
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iorq->device = device; |
115 |
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iorq->fd = file; |
116 |
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iorq->id = id; |
117 |
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iorq->major = major; |
118 |
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iorq->length = length; |
119 |
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iorq->partial_len = 0; |
120 |
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iorq->fns = fns; |
121 |
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iorq->timeout = total_timeout; |
122 |
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iorq->itv_timeout = interval_timeout; |
123 |
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iorq->buffer = buffer; |
124 |
|
return True; |
125 |
} |
} |
126 |
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|
127 |
void |
void |
128 |
rdpdr_send_connect(void) |
rdpdr_send_connect(void) |
129 |
{ |
{ |
206 |
out_uint32_le(s, i); /* RDP Device ID */ |
out_uint32_le(s, i); /* RDP Device ID */ |
207 |
out_uint8p(s, g_rdpdr_device[i].name, 8); |
out_uint8p(s, g_rdpdr_device[i].name, 8); |
208 |
|
|
209 |
if (g_rdpdr_device[i].device_type == DEVICE_TYPE_PRINTER) |
switch (g_rdpdr_device[i].device_type) |
210 |
{ |
{ |
211 |
printerinfo = (PRINTER *) g_rdpdr_device[i].pdevice_data; |
case DEVICE_TYPE_PRINTER: |
212 |
|
printerinfo = (PRINTER *) g_rdpdr_device[i].pdevice_data; |
213 |
|
|
214 |
driverlen = 2 * strlen(printerinfo->driver) + 2; |
driverlen = 2 * strlen(printerinfo->driver) + 2; |
215 |
printerlen = 2 * strlen(printerinfo->printer) + 2; |
printerlen = 2 * strlen(printerinfo->printer) + 2; |
216 |
bloblen = printerinfo->bloblen; |
bloblen = printerinfo->bloblen; |
217 |
|
|
218 |
out_uint32_le(s, 24 + driverlen + printerlen + bloblen); /* length of extra info */ |
out_uint32_le(s, 24 + driverlen + printerlen + bloblen); /* length of extra info */ |
219 |
out_uint32_le(s, printerinfo->default_printer ? 2 : 0); |
out_uint32_le(s, printerinfo->default_printer ? 2 : 0); |
220 |
out_uint8s(s, 8); /* unknown */ |
out_uint8s(s, 8); /* unknown */ |
221 |
out_uint32_le(s, driverlen); |
out_uint32_le(s, driverlen); |
222 |
out_uint32_le(s, printerlen); |
out_uint32_le(s, printerlen); |
223 |
out_uint32_le(s, bloblen); |
out_uint32_le(s, bloblen); |
224 |
rdp_out_unistr(s, printerinfo->driver, driverlen - 2); |
rdp_out_unistr(s, printerinfo->driver, driverlen - 2); |
225 |
rdp_out_unistr(s, printerinfo->printer, printerlen - 2); |
rdp_out_unistr(s, printerinfo->printer, printerlen - 2); |
226 |
out_uint8a(s, printerinfo->blob, bloblen); |
out_uint8a(s, printerinfo->blob, bloblen); |
227 |
|
|
228 |
xfree(printerinfo->blob); /* Blob is sent twice if reconnecting */ |
if (printerinfo->blob) |
229 |
} |
xfree(printerinfo->blob); /* Blob is sent twice if reconnecting */ |
230 |
else |
break; |
231 |
{ |
default: |
232 |
out_uint32(s, 0); |
out_uint32(s, 0); |
233 |
} |
} |
234 |
} |
} |
235 |
#if 0 |
#if 0 |
301 |
buffer = (uint8 *) xmalloc(1024); |
buffer = (uint8 *) xmalloc(1024); |
302 |
buffer[0] = 0; |
buffer[0] = 0; |
303 |
|
|
|
|
|
304 |
switch (g_rdpdr_device[device].device_type) |
switch (g_rdpdr_device[device].device_type) |
305 |
{ |
{ |
306 |
case DEVICE_TYPE_SERIAL: |
case DEVICE_TYPE_SERIAL: |
323 |
case DEVICE_TYPE_DISK: |
case DEVICE_TYPE_DISK: |
324 |
|
|
325 |
fns = &disk_fns; |
fns = &disk_fns; |
326 |
|
rw_blocking = False; |
327 |
break; |
break; |
328 |
|
|
329 |
case DEVICE_TYPE_SCARD: |
case DEVICE_TYPE_SCARD: |
392 |
if (rw_blocking) // Complete read immediately |
if (rw_blocking) // Complete read immediately |
393 |
{ |
{ |
394 |
buffer = (uint8 *) xrealloc((void *) buffer, length); |
buffer = (uint8 *) xrealloc((void *) buffer, length); |
395 |
|
if (!buffer) |
396 |
|
{ |
397 |
|
status = STATUS_CANCELLED; |
398 |
|
break; |
399 |
|
} |
400 |
status = fns->read(file, buffer, length, offset, &result); |
status = fns->read(file, buffer, length, offset, &result); |
401 |
buffer_len = result; |
buffer_len = result; |
402 |
break; |
break; |
404 |
|
|
405 |
// Add request to table |
// Add request to table |
406 |
pst_buf = (uint8 *) xmalloc(length); |
pst_buf = (uint8 *) xmalloc(length); |
407 |
|
if (!pst_buf) |
408 |
|
{ |
409 |
|
status = STATUS_CANCELLED; |
410 |
|
break; |
411 |
|
} |
412 |
serial_get_timeout(file, length, &total_timeout, &interval_timeout); |
serial_get_timeout(file, length, &total_timeout, &interval_timeout); |
413 |
if (add_async_iorequest |
if (add_async_iorequest |
414 |
(device, file, id, major, length, fns, total_timeout, interval_timeout, |
(device, file, id, major, length, fns, total_timeout, interval_timeout, |
420 |
|
|
421 |
status = STATUS_CANCELLED; |
status = STATUS_CANCELLED; |
422 |
break; |
break; |
|
|
|
423 |
case IRP_MJ_WRITE: |
case IRP_MJ_WRITE: |
424 |
|
|
425 |
buffer_len = 1; |
buffer_len = 1; |
444 |
|
|
445 |
// Add to table |
// Add to table |
446 |
pst_buf = (uint8 *) xmalloc(length); |
pst_buf = (uint8 *) xmalloc(length); |
447 |
|
if (!pst_buf) |
448 |
|
{ |
449 |
|
status = STATUS_CANCELLED; |
450 |
|
break; |
451 |
|
} |
452 |
|
|
453 |
in_uint8a(s, pst_buf, length); |
in_uint8a(s, pst_buf, length); |
454 |
|
|
455 |
if (add_async_iorequest |
if (add_async_iorequest |
573 |
in_uint8s(s, 0x14); |
in_uint8s(s, 0x14); |
574 |
|
|
575 |
buffer = (uint8 *) xrealloc((void *) buffer, bytes_out + 0x14); |
buffer = (uint8 *) xrealloc((void *) buffer, bytes_out + 0x14); |
576 |
|
if (!buffer) |
577 |
|
{ |
578 |
|
status = STATUS_CANCELLED; |
579 |
|
break; |
580 |
|
} |
581 |
|
|
582 |
out.data = out.p = buffer; |
out.data = out.p = buffer; |
583 |
out.size = sizeof(buffer); |
out.size = sizeof(buffer); |
584 |
status = fns->device_control(file, request, s, &out); |
status = fns->device_control(file, request, s, &out); |
594 |
{ |
{ |
595 |
rdpdr_send_completion(device, id, status, result, buffer, buffer_len); |
rdpdr_send_completion(device, id, status, result, buffer, buffer_len); |
596 |
} |
} |
597 |
xfree(buffer); |
if (buffer) |
598 |
|
xfree(buffer); |
599 |
|
buffer = NULL; |
600 |
} |
} |
601 |
|
|
602 |
void |
void |
702 |
{ |
{ |
703 |
if (g_num_devices > 0) |
if (g_num_devices > 0) |
704 |
{ |
{ |
705 |
rdpdr_channel = channel_register("rdpdr", CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_COMPRESS_RDP, rdpdr_process); |
rdpdr_channel = |
706 |
|
channel_register("rdpdr", |
707 |
|
CHANNEL_OPTION_INITIALIZED | CHANNEL_OPTION_COMPRESS_RDP, |
708 |
|
rdpdr_process); |
709 |
} |
} |
710 |
|
|
711 |
return (rdpdr_channel != NULL); |
return (rdpdr_channel != NULL); |
715 |
void |
void |
716 |
rdpdr_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv, BOOL * timeout) |
rdpdr_add_fds(int *n, fd_set * rfds, fd_set * wfds, struct timeval *tv, BOOL * timeout) |
717 |
{ |
{ |
718 |
int i; |
uint32 select_timeout = 0; // Timeout value to be used for select() (in millisecons). |
|
long select_timeout = 0; // Timeout value to be used for select() (in millisecons). |
|
719 |
struct async_iorequest *iorq; |
struct async_iorequest *iorq; |
720 |
|
|
721 |
for (i = 0; i < MAX_ASYNC_IO_REQUESTS; i++) |
iorq = g_iorequest; |
722 |
|
while (iorq != NULL) |
723 |
{ |
{ |
724 |
iorq = &g_iorequest[i]; |
if (iorq->fd != 0) |
|
|
|
|
if (iorq->fd != 0) // Found a pending io request |
|
725 |
{ |
{ |
726 |
switch (iorq->major) |
switch (iorq->major) |
727 |
{ |
{ |
744 |
break; |
break; |
745 |
|
|
746 |
case IRP_MJ_WRITE: |
case IRP_MJ_WRITE: |
|
|
|
747 |
FD_SET(iorq->fd, wfds); |
FD_SET(iorq->fd, wfds); |
748 |
break; |
break; |
749 |
|
|
750 |
} |
} |
751 |
*n = MAX(*n, iorq->fd); |
*n = MAX(*n, iorq->fd); |
752 |
} |
} |
753 |
|
|
754 |
|
iorq = iorq->next; |
755 |
} |
} |
756 |
} |
} |
757 |
|
|
758 |
|
|
759 |
/* Check if select() returned with one of the rdpdr file descriptors, and complete io if it did */ |
/* Check if select() returned with one of the rdpdr file descriptors, and complete io if it did */ |
760 |
void |
void |
761 |
rdpdr_check_fds(fd_set * rfds, fd_set * wfds, BOOL timed_out) |
rdpdr_check_fds(fd_set * rfds, fd_set * wfds, BOOL timed_out) |
762 |
{ |
{ |
|
int i; |
|
763 |
NTSTATUS status; |
NTSTATUS status; |
764 |
uint32 result = 0, buffer_len = 0; |
uint32 result = 0; |
765 |
DEVICE_FNS *fns; |
DEVICE_FNS *fns; |
766 |
struct async_iorequest *iorq; |
struct async_iorequest *iorq; |
767 |
|
struct async_iorequest *prev; |
768 |
|
uint32 req_size = 0; |
769 |
|
|
770 |
if (timed_out) |
if (timed_out) |
771 |
{ |
{ |
773 |
return; |
return; |
774 |
} |
} |
775 |
|
|
776 |
// Walk through array of pending io_rq's |
iorq = g_iorequest; |
777 |
for (i = 0; i < MAX_ASYNC_IO_REQUESTS; i++) |
prev = NULL; |
778 |
|
while (iorq != NULL) |
779 |
{ |
{ |
|
iorq = &g_iorequest[i]; |
|
|
|
|
780 |
if (iorq->fd != 0) |
if (iorq->fd != 0) |
781 |
{ |
{ |
782 |
switch (iorq->major) |
switch (iorq->major) |
783 |
{ |
{ |
|
|
|
784 |
case IRP_MJ_READ: |
case IRP_MJ_READ: |
|
|
|
785 |
if (FD_ISSET(iorq->fd, rfds)) |
if (FD_ISSET(iorq->fd, rfds)) |
786 |
{ |
{ |
787 |
// Read, and send data. |
/* Read the data */ |
788 |
fns = iorq->fns; |
fns = iorq->fns; |
789 |
status = fns->read(iorq->fd, iorq->buffer, |
|
790 |
iorq->length, 0, &result); |
req_size = |
791 |
buffer_len = result; |
(iorq->length - iorq->partial_len) > |
792 |
|
8192 ? 8192 : (iorq->length - |
793 |
rdpdr_send_completion(iorq->device, iorq->id, |
iorq->partial_len); |
794 |
status, result, iorq->buffer, |
/* never read larger chunks than 8k - chances are that it will block */ |
795 |
buffer_len); |
status = fns->read(iorq->fd, |
796 |
|
iorq->buffer + iorq->partial_len, |
797 |
|
req_size, 0, &result); |
798 |
|
iorq->partial_len += result; |
799 |
|
|
800 |
#if WITH_DEBUG_RDP5 |
#if WITH_DEBUG_RDP5 |
801 |
DEBUG(("RDPDR: %d bytes of data read\n", result)); |
DEBUG(("RDPDR: %d bytes of data read\n", result)); |
802 |
#endif |
#endif |
803 |
xfree(iorq->buffer); |
/* only delete link if all data has been transfered */ |
804 |
iorq->fd = 0; |
/* or if result was 0 and status success - EOF */ |
805 |
|
if ((iorq->partial_len == iorq->length) || |
806 |
|
(result == 0)) |
807 |
|
{ |
808 |
|
#if WITH_DEBUG_RDP5 |
809 |
|
DEBUG(("RDPDR: AIO total %u bytes read of %u\n", iorq->partial_len, iorq->length)); |
810 |
|
#endif |
811 |
|
/* send the data */ |
812 |
|
status = STATUS_SUCCESS; |
813 |
|
rdpdr_send_completion(iorq->device, |
814 |
|
iorq->id, status, |
815 |
|
iorq->partial_len, |
816 |
|
iorq->buffer, |
817 |
|
iorq->partial_len); |
818 |
|
xfree(iorq->buffer); |
819 |
|
iorq->fd = 0; |
820 |
|
if (prev != NULL) |
821 |
|
{ |
822 |
|
prev->next = iorq->next; |
823 |
|
xfree(iorq); |
824 |
|
} |
825 |
|
else |
826 |
|
{ |
827 |
|
// Even if NULL |
828 |
|
g_iorequest = iorq->next; |
829 |
|
xfree(iorq); |
830 |
|
} |
831 |
|
} |
832 |
} |
} |
833 |
break; |
break; |
|
|
|
834 |
case IRP_MJ_WRITE: |
case IRP_MJ_WRITE: |
|
|
|
835 |
if (FD_ISSET(iorq->fd, wfds)) |
if (FD_ISSET(iorq->fd, wfds)) |
836 |
{ |
{ |
837 |
// Write data and send completion. |
/* Write data. */ |
838 |
fns = iorq->fns; |
fns = iorq->fns; |
|
status = fns->write(iorq->fd, iorq->buffer, |
|
|
iorq->length, 0, &result); |
|
|
rdpdr_send_completion(iorq->device, iorq->id, |
|
|
status, result, "", 1); |
|
839 |
|
|
840 |
xfree(iorq->buffer); |
req_size = |
841 |
iorq->fd = 0; |
(iorq->length - iorq->partial_len) > |
842 |
|
8192 ? 8192 : (iorq->length - |
843 |
|
iorq->partial_len); |
844 |
|
|
845 |
|
/* never write larger chunks than 8k - chances are that it will block */ |
846 |
|
status = fns->write(iorq->fd, |
847 |
|
iorq->buffer + |
848 |
|
iorq->partial_len, req_size, 0, |
849 |
|
&result); |
850 |
|
iorq->partial_len += result; |
851 |
|
#if WITH_DEBUG_RDP5 |
852 |
|
DEBUG(("RDPDR: %d bytes of data written\n", |
853 |
|
result)); |
854 |
|
#endif |
855 |
|
/* only delete link if all data has been transfered */ |
856 |
|
/* or we couldn't write */ |
857 |
|
if ((iorq->partial_len == iorq->length) |
858 |
|
|| (result == 0)) |
859 |
|
{ |
860 |
|
#if WITH_DEBUG_RDP5 |
861 |
|
DEBUG(("RDPDR: AIO total %u bytes written of %u\n", iorq->partial_len, iorq->length)); |
862 |
|
#endif |
863 |
|
/* send a status success */ |
864 |
|
status = STATUS_SUCCESS; |
865 |
|
rdpdr_send_completion(iorq->device, |
866 |
|
iorq->id, status, |
867 |
|
iorq->partial_len, |
868 |
|
(uint8 *) "", 1); |
869 |
|
|
870 |
|
xfree(iorq->buffer); |
871 |
|
iorq->fd = 0; |
872 |
|
if (prev != NULL) |
873 |
|
{ |
874 |
|
prev->next = iorq->next; |
875 |
|
xfree(iorq); |
876 |
|
} |
877 |
|
else |
878 |
|
{ |
879 |
|
// Even if NULL |
880 |
|
g_iorequest = iorq->next; |
881 |
|
xfree(iorq); |
882 |
|
} |
883 |
|
} |
884 |
} |
} |
885 |
break; |
break; |
886 |
} |
} |
887 |
|
|
888 |
} |
} |
889 |
|
prev = iorq; |
890 |
|
iorq = iorq->next; |
891 |
} |
} |
892 |
|
|
893 |
} |
} |
894 |
|
|
895 |
/* Abort a pending io request for a given handle and major */ |
/* Abort a pending io request for a given handle and major */ |
897 |
rdpdr_abort_io(uint32 fd, uint32 major, NTSTATUS status) |
rdpdr_abort_io(uint32 fd, uint32 major, NTSTATUS status) |
898 |
{ |
{ |
899 |
uint32 result; |
uint32 result; |
|
int i; |
|
900 |
struct async_iorequest *iorq; |
struct async_iorequest *iorq; |
901 |
|
struct async_iorequest *prev; |
902 |
|
|
903 |
for (i = 0; i < MAX_ASYNC_IO_REQUESTS; i++) |
iorq = g_iorequest; |
904 |
|
prev = NULL; |
905 |
|
while (iorq != NULL) |
906 |
{ |
{ |
|
iorq = &g_iorequest[i]; |
|
|
|
|
907 |
// Only remove from table when major is not set, or when correct major is supplied. |
// Only remove from table when major is not set, or when correct major is supplied. |
908 |
// Abort read should not abort a write io request. |
// Abort read should not abort a write io request. |
909 |
if ((iorq->fd == fd) && (major == 0 || iorq->major == major)) |
if ((iorq->fd == fd) && (major == 0 || iorq->major == major)) |
910 |
{ |
{ |
911 |
result = 0; |
result = 0; |
912 |
rdpdr_send_completion(iorq->device, iorq->id, status, result, "", 1); |
rdpdr_send_completion(iorq->device, iorq->id, status, result, (uint8 *) "", |
913 |
|
1); |
914 |
xfree(iorq->buffer); |
xfree(iorq->buffer); |
915 |
iorq->fd = 0; |
iorq->fd = 0; |
916 |
|
if (prev != NULL) |
917 |
|
{ |
918 |
|
prev->next = iorq->next; |
919 |
|
xfree(iorq); |
920 |
|
} |
921 |
|
else |
922 |
|
{ |
923 |
|
// Even if NULL |
924 |
|
g_iorequest = iorq->next; |
925 |
|
xfree(iorq); |
926 |
|
} |
927 |
return True; |
return True; |
928 |
} |
} |
929 |
|
|
930 |
|
prev = iorq; |
931 |
|
iorq = iorq->next; |
932 |
} |
} |
933 |
|
|
934 |
return False; |
return False; |
935 |
} |
} |