1 |
/* -*- c-basic-offset: 8 -*- |
/* -*- c-basic-offset: 8 -*- |
2 |
rdesktop: A Remote Desktop Protocol client. |
rdesktop: A Remote Desktop Protocol client. |
3 |
Protocol services - RDP layer |
Protocol services - RDP layer |
4 |
Copyright (C) Matthew Chapman 1999-2002 |
Copyright (C) Matthew Chapman 1999-2005 |
5 |
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6 |
This program is free software; you can redistribute it and/or modify |
This program is free software; you can redistribute it and/or modify |
7 |
it under the terms of the GNU General Public License as published by |
it under the terms of the GNU General Public License as published by |
27 |
extern BOOL g_orders; |
extern BOOL g_orders; |
28 |
extern BOOL g_encryption; |
extern BOOL g_encryption; |
29 |
extern BOOL g_desktop_save; |
extern BOOL g_desktop_save; |
30 |
|
extern BOOL g_polygon_ellipse_orders; |
31 |
extern BOOL g_use_rdp5; |
extern BOOL g_use_rdp5; |
32 |
extern uint16 g_server_rdp_version; |
extern uint16 g_server_rdp_version; |
33 |
extern uint32 g_rdp5_performanceflags; |
extern uint32 g_rdp5_performanceflags; |
35 |
extern int g_width; |
extern int g_width; |
36 |
extern int g_height; |
extern int g_height; |
37 |
extern BOOL g_bitmap_cache; |
extern BOOL g_bitmap_cache; |
38 |
|
extern BOOL g_bitmap_cache_persist_enable; |
39 |
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|
40 |
uint8 *g_next_packet; |
uint8 *g_next_packet; |
41 |
uint32 g_rdp_shareid; |
uint32 g_rdp_shareid; |
52 |
{ |
{ |
53 |
static STREAM rdp_s; |
static STREAM rdp_s; |
54 |
uint16 length, pdu_type; |
uint16 length, pdu_type; |
55 |
|
uint8 rdpver; |
56 |
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|
57 |
if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end)) |
if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end)) |
58 |
{ |
{ |
59 |
rdp_s = sec_recv(); |
rdp_s = sec_recv(&rdpver); |
60 |
if (rdp_s == NULL) |
if (rdp_s == NULL) |
61 |
return NULL; |
return NULL; |
62 |
|
if (rdpver == 0xff) |
63 |
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{ |
64 |
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g_next_packet = rdp_s->end; |
65 |
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*type = 0; |
66 |
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return rdp_s; |
67 |
|
} |
68 |
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else if (rdpver != 3) |
69 |
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{ |
70 |
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/* rdp5_process should move g_next_packet ok */ |
71 |
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rdp5_process(rdp_s); |
72 |
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*type = 0; |
73 |
|
return rdp_s; |
74 |
|
} |
75 |
|
|
76 |
g_next_packet = rdp_s->p; |
g_next_packet = rdp_s->p; |
77 |
} |
} |
382 |
rdp_send_data(s, RDP_DATA_PDU_INPUT); |
rdp_send_data(s, RDP_DATA_PDU_INPUT); |
383 |
} |
} |
384 |
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|
385 |
|
/* Inform the server on the contents of the persistent bitmap cache */ |
386 |
|
static void |
387 |
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rdp_enum_bmpcache2(void) |
388 |
|
{ |
389 |
|
STREAM s; |
390 |
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HASH_KEY keylist[BMPCACHE2_NUM_PSTCELLS]; |
391 |
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uint32 num_keys, offset, count, flags; |
392 |
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|
393 |
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offset = 0; |
394 |
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num_keys = pstcache_enumerate(2, keylist); |
395 |
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|
396 |
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while (offset < num_keys) |
397 |
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{ |
398 |
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count = MIN(num_keys - offset, 169); |
399 |
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|
400 |
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s = rdp_init_data(24 + count * sizeof(HASH_KEY)); |
401 |
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|
402 |
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flags = 0; |
403 |
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if (offset == 0) |
404 |
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flags |= PDU_FLAG_FIRST; |
405 |
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if (num_keys - offset <= 169) |
406 |
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flags |= PDU_FLAG_LAST; |
407 |
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|
408 |
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/* header */ |
409 |
|
out_uint32_le(s, 0); |
410 |
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out_uint16_le(s, count); |
411 |
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out_uint16_le(s, 0); |
412 |
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out_uint16_le(s, 0); |
413 |
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out_uint16_le(s, 0); |
414 |
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out_uint16_le(s, 0); |
415 |
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out_uint16_le(s, num_keys); |
416 |
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out_uint32_le(s, 0); |
417 |
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out_uint32_le(s, flags); |
418 |
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|
419 |
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/* list */ |
420 |
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out_uint8a(s, keylist[offset], count * sizeof(HASH_KEY)); |
421 |
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|
422 |
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s_mark_end(s); |
423 |
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rdp_send_data(s, 0x2b); |
424 |
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|
425 |
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offset += 169; |
426 |
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} |
427 |
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} |
428 |
|
|
429 |
/* Send an (empty) font information PDU */ |
/* Send an (empty) font information PDU */ |
430 |
static void |
static void |
431 |
rdp_send_fonts(uint16 seq) |
rdp_send_fonts(uint16 seq) |
496 |
{ |
{ |
497 |
uint8 order_caps[32]; |
uint8 order_caps[32]; |
498 |
|
|
|
|
|
499 |
memset(order_caps, 0, 32); |
memset(order_caps, 0, 32); |
500 |
order_caps[0] = 1; /* dest blt */ |
order_caps[0] = 1; /* dest blt */ |
501 |
order_caps[1] = 1; /* pat blt */ |
order_caps[1] = 1; /* pat blt */ |
502 |
order_caps[2] = 1; /* screen blt */ |
order_caps[2] = 1; /* screen blt */ |
503 |
order_caps[3] = (g_bitmap_cache ? 1 : 0); /* memblt */ |
order_caps[3] = (g_bitmap_cache ? 1 : 0); /* memblt */ |
504 |
|
order_caps[4] = 0; /* triblt */ |
505 |
order_caps[8] = 1; /* line */ |
order_caps[8] = 1; /* line */ |
506 |
order_caps[9] = 1; /* line */ |
order_caps[9] = 1; /* line */ |
507 |
order_caps[10] = 1; /* rect */ |
order_caps[10] = 1; /* rect */ |
508 |
order_caps[11] = (g_desktop_save == False ? 0 : 1); /* desksave */ |
order_caps[11] = (g_desktop_save ? 1 : 0); /* desksave */ |
509 |
order_caps[13] = 1; /* memblt */ |
order_caps[13] = 1; /* memblt */ |
510 |
order_caps[14] = 1; /* triblt */ |
order_caps[14] = 1; /* triblt */ |
511 |
|
order_caps[20] = (g_polygon_ellipse_orders ? 1 : 0); /* polygon */ |
512 |
|
order_caps[21] = (g_polygon_ellipse_orders ? 1 : 0); /* polygon2 */ |
513 |
order_caps[22] = 1; /* polyline */ |
order_caps[22] = 1; /* polyline */ |
514 |
|
order_caps[25] = (g_polygon_ellipse_orders ? 1 : 0); /* ellipse */ |
515 |
|
order_caps[26] = (g_polygon_ellipse_orders ? 1 : 0); /* ellipse2 */ |
516 |
order_caps[27] = 1; /* text2 */ |
order_caps[27] = 1; /* text2 */ |
517 |
out_uint16_le(s, RDP_CAPSET_ORDER); |
out_uint16_le(s, RDP_CAPSET_ORDER); |
518 |
out_uint16_le(s, RDP_CAPLEN_ORDER); |
out_uint16_le(s, RDP_CAPLEN_ORDER); |
550 |
out_uint16_le(s, 0x1000 * Bpp); /* max cell size */ |
out_uint16_le(s, 0x1000 * Bpp); /* max cell size */ |
551 |
} |
} |
552 |
|
|
553 |
|
/* Output bitmap cache v2 capability set */ |
554 |
|
static void |
555 |
|
rdp_out_bmpcache2_caps(STREAM s) |
556 |
|
{ |
557 |
|
out_uint16_le(s, RDP_CAPSET_BMPCACHE2); |
558 |
|
out_uint16_le(s, RDP_CAPLEN_BMPCACHE2); |
559 |
|
|
560 |
|
out_uint16_le(s, g_bitmap_cache_persist_enable ? 2 : 0); /* version */ |
561 |
|
|
562 |
|
out_uint16_le(s, 0x0300); /* flags? number of caches? */ |
563 |
|
|
564 |
|
out_uint32_le(s, BMPCACHE2_C0_CELLS); |
565 |
|
out_uint32_le(s, BMPCACHE2_C1_CELLS); |
566 |
|
if (pstcache_init(2)) |
567 |
|
{ |
568 |
|
out_uint32_le(s, BMPCACHE2_NUM_PSTCELLS | BMPCACHE2_FLAG_PERSIST); |
569 |
|
} |
570 |
|
else |
571 |
|
{ |
572 |
|
out_uint32_le(s, BMPCACHE2_C2_CELLS); |
573 |
|
} |
574 |
|
out_uint8s(s, 20); /* other bitmap caches not used */ |
575 |
|
} |
576 |
|
|
577 |
/* Output control capability set */ |
/* Output control capability set */ |
578 |
static void |
static void |
579 |
rdp_out_control_caps(STREAM s) |
rdp_out_control_caps(STREAM s) |
633 |
out_uint16(s, 0); /* pad */ |
out_uint16(s, 0); /* pad */ |
634 |
} |
} |
635 |
|
|
636 |
static uint8 canned_caps[] = { |
static uint8 caps_0x0d[] = { |
637 |
0x01, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00, 0x04, |
0x01, 0x00, 0x00, 0x00, 0x09, 0x04, 0x00, 0x00, |
638 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, |
0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
639 |
0x00, 0x00, 0x00, 0x00, 0x00, |
0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
640 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
641 |
0x00, 0x00, 0x00, 0x00, 0x00, |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
642 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
643 |
0x00, 0x00, 0x00, 0x00, 0x00, |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
644 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
645 |
0x00, 0x00, 0x00, 0x00, 0x00, |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
646 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
647 |
0x0C, 0x00, 0x08, 0x00, 0x01, |
0x00, 0x00, 0x00, 0x00 |
648 |
0x00, 0x00, 0x00, 0x0E, 0x00, 0x08, 0x00, 0x01, 0x00, 0x00, 0x00, |
}; |
649 |
0x10, 0x00, 0x34, 0x00, 0xFE, |
|
650 |
0x00, 0x04, 0x00, 0xFE, 0x00, 0x04, 0x00, 0xFE, 0x00, 0x08, 0x00, |
static uint8 caps_0x0c[] = { 0x01, 0x00, 0x00, 0x00 }; |
651 |
0xFE, 0x00, 0x08, 0x00, 0xFE, |
|
652 |
0x00, 0x10, 0x00, 0xFE, 0x00, 0x20, 0x00, 0xFE, 0x00, 0x40, 0x00, |
static uint8 caps_0x0e[] = { 0x01, 0x00, 0x00, 0x00 }; |
653 |
0xFE, 0x00, 0x80, 0x00, 0xFE, |
|
654 |
0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x08, 0x00, 0x01, 0x00, 0x01, |
static uint8 caps_0x10[] = { |
655 |
0x02, 0x00, 0x00, 0x00 |
0xFE, 0x00, 0x04, 0x00, 0xFE, 0x00, 0x04, 0x00, |
656 |
|
0xFE, 0x00, 0x08, 0x00, 0xFE, 0x00, 0x08, 0x00, |
657 |
|
0xFE, 0x00, 0x10, 0x00, 0xFE, 0x00, 0x20, 0x00, |
658 |
|
0xFE, 0x00, 0x40, 0x00, 0xFE, 0x00, 0x80, 0x00, |
659 |
|
0xFE, 0x00, 0x00, 0x01, 0x40, 0x00, 0x00, 0x08, |
660 |
|
0x00, 0x01, 0x00, 0x01, 0x02, 0x00, 0x00, 0x00 |
661 |
}; |
}; |
662 |
|
|
663 |
/* Output unknown capability sets (number 13, 12, 14 and 16) */ |
/* Output unknown capability sets */ |
664 |
static void |
static void |
665 |
rdp_out_unknown_caps(STREAM s) |
rdp_out_unknown_caps(STREAM s, uint16 id, uint16 length, uint8 * caps) |
666 |
{ |
{ |
667 |
out_uint16_le(s, RDP_CAPSET_UNKNOWN); |
out_uint16_le(s, id); |
668 |
out_uint16_le(s, 0x58); |
out_uint16_le(s, length); |
669 |
|
|
670 |
out_uint8p(s, canned_caps, RDP_CAPLEN_UNKNOWN - 4); |
out_uint8p(s, caps, length - 4); |
671 |
} |
} |
672 |
|
|
673 |
#define RDP5_FLAG 0x0030 |
#define RDP5_FLAG 0x0030 |
681 |
RDP_CAPLEN_GENERAL + RDP_CAPLEN_BITMAP + RDP_CAPLEN_ORDER + |
RDP_CAPLEN_GENERAL + RDP_CAPLEN_BITMAP + RDP_CAPLEN_ORDER + |
682 |
RDP_CAPLEN_BMPCACHE + RDP_CAPLEN_COLCACHE + |
RDP_CAPLEN_BMPCACHE + RDP_CAPLEN_COLCACHE + |
683 |
RDP_CAPLEN_ACTIVATE + RDP_CAPLEN_CONTROL + |
RDP_CAPLEN_ACTIVATE + RDP_CAPLEN_CONTROL + |
684 |
RDP_CAPLEN_POINTER + RDP_CAPLEN_SHARE + RDP_CAPLEN_UNKNOWN + 4 /* w2k fix, why? */ ; |
RDP_CAPLEN_POINTER + RDP_CAPLEN_SHARE + |
685 |
|
0x58 + 0x08 + 0x08 + 0x34 /* unknown caps */ + |
686 |
|
4 /* w2k fix, why? */ ; |
687 |
|
|
688 |
s = sec_init(sec_flags, 6 + 14 + caplen + sizeof(RDP_SOURCE)); |
s = sec_init(sec_flags, 6 + 14 + caplen + sizeof(RDP_SOURCE)); |
689 |
|
|
703 |
rdp_out_general_caps(s); |
rdp_out_general_caps(s); |
704 |
rdp_out_bitmap_caps(s); |
rdp_out_bitmap_caps(s); |
705 |
rdp_out_order_caps(s); |
rdp_out_order_caps(s); |
706 |
rdp_out_bmpcache_caps(s); |
g_use_rdp5 ? rdp_out_bmpcache2_caps(s) : rdp_out_bmpcache_caps(s); |
707 |
rdp_out_colcache_caps(s); |
rdp_out_colcache_caps(s); |
708 |
rdp_out_activate_caps(s); |
rdp_out_activate_caps(s); |
709 |
rdp_out_control_caps(s); |
rdp_out_control_caps(s); |
710 |
rdp_out_pointer_caps(s); |
rdp_out_pointer_caps(s); |
711 |
rdp_out_share_caps(s); |
rdp_out_share_caps(s); |
712 |
rdp_out_unknown_caps(s); |
|
713 |
|
rdp_out_unknown_caps(s, 0x0d, 0x58, caps_0x0d); /* international? */ |
714 |
|
rdp_out_unknown_caps(s, 0x0c, 0x08, caps_0x0c); |
715 |
|
rdp_out_unknown_caps(s, 0x0e, 0x08, caps_0x0e); |
716 |
|
rdp_out_unknown_caps(s, 0x10, 0x34, caps_0x10); /* glyph cache? */ |
717 |
|
|
718 |
s_mark_end(s); |
s_mark_end(s); |
719 |
sec_send(s, sec_flags); |
sec_send(s, sec_flags); |
758 |
if (g_width != width || g_height != height) |
if (g_width != width || g_height != height) |
759 |
{ |
{ |
760 |
warning("screen size changed from %dx%d to %dx%d\n", g_width, g_height, |
warning("screen size changed from %dx%d to %dx%d\n", g_width, g_height, |
761 |
width, height); |
width, height); |
762 |
g_width = width; |
g_width = width; |
763 |
g_height = height; |
g_height = height; |
764 |
ui_resize_window(); |
ui_resize_window(); |
765 |
} |
} |
766 |
} |
} |
767 |
|
|
768 |
/* Respond to a demand active PDU */ |
/* Process server capabilities */ |
769 |
static void |
void |
770 |
process_demand_active(STREAM s) |
rdp_process_server_caps(STREAM s, uint16 length) |
771 |
{ |
{ |
772 |
int n; |
int n; |
773 |
uint8 type, *next; |
uint8 *next, *start; |
774 |
uint16 len_src_descriptor, len_combined_caps, num_capsets, capset_type, capset_length; |
uint16 ncapsets, capset_type, capset_length; |
775 |
|
|
776 |
in_uint32_le(s, g_rdp_shareid); |
start = s->p; |
|
in_uint16_le(s, len_src_descriptor); |
|
|
in_uint16_le(s, len_combined_caps); |
|
|
in_uint8s(s, len_src_descriptor); |
|
777 |
|
|
778 |
in_uint16_le(s, num_capsets); |
in_uint16_le(s, ncapsets); |
779 |
in_uint8s(s, 2); /* pad */ |
in_uint8s(s, 2); /* pad */ |
780 |
|
|
781 |
DEBUG(("DEMAND_ACTIVE(id=0x%x,num_caps=%d)\n", g_rdp_shareid, num_capsets)); |
for (n = 0; n < ncapsets; n++) |
|
|
|
|
for (n = 0; n < num_capsets; n++) |
|
782 |
{ |
{ |
783 |
|
if (s->p > start + length) |
784 |
|
return; |
785 |
|
|
786 |
in_uint16_le(s, capset_type); |
in_uint16_le(s, capset_type); |
787 |
in_uint16_le(s, capset_length); |
in_uint16_le(s, capset_length); |
788 |
|
|
801 |
|
|
802 |
s->p = next; |
s->p = next; |
803 |
} |
} |
804 |
|
} |
805 |
|
|
806 |
|
/* Respond to a demand active PDU */ |
807 |
|
static void |
808 |
|
process_demand_active(STREAM s) |
809 |
|
{ |
810 |
|
uint8 type; |
811 |
|
uint16 len_src_descriptor, len_combined_caps; |
812 |
|
|
813 |
|
in_uint32_le(s, g_rdp_shareid); |
814 |
|
in_uint16_le(s, len_src_descriptor); |
815 |
|
in_uint16_le(s, len_combined_caps); |
816 |
|
in_uint8s(s, len_src_descriptor); |
817 |
|
|
818 |
|
DEBUG(("DEMAND_ACTIVE(id=0x%x)\n", g_rdp_shareid)); |
819 |
|
rdp_process_server_caps(s, len_combined_caps); |
820 |
|
|
821 |
rdp_send_confirm_active(); |
rdp_send_confirm_active(); |
822 |
rdp_send_synchronise(); |
rdp_send_synchronise(); |
829 |
|
|
830 |
if (g_use_rdp5) |
if (g_use_rdp5) |
831 |
{ |
{ |
832 |
|
rdp_enum_bmpcache2(); |
833 |
rdp_send_fonts(3); |
rdp_send_fonts(3); |
834 |
} |
} |
835 |
else |
else |
1096 |
|
|
1097 |
if (ctype & RDP_MPPC_COMPRESSED) |
if (ctype & RDP_MPPC_COMPRESSED) |
1098 |
{ |
{ |
1099 |
|
if (len > RDP_MPPC_DICT_SIZE) |
1100 |
|
error("error decompressed packet size exceeds max\n"); |
1101 |
if (mppc_expand(s->p, clen, ctype, &roff, &rlen) == -1) |
if (mppc_expand(s->p, clen, ctype, &roff, &rlen) == -1) |
1102 |
error("error while decompressing packet\n"); |
error("error while decompressing packet\n"); |
1103 |
|
|
1154 |
} |
} |
1155 |
|
|
1156 |
/* Process incoming packets */ |
/* Process incoming packets */ |
1157 |
|
/* nevers gets out of here till app is done */ |
1158 |
void |
void |
1159 |
rdp_main_loop(BOOL * deactivated, uint32 * ext_disc_reason) |
rdp_main_loop(BOOL * deactivated, uint32 * ext_disc_reason) |
1160 |
{ |
{ |
1161 |
uint8 type; |
while (rdp_loop(deactivated, ext_disc_reason)) |
1162 |
BOOL disc = False; /* True when a disconnect PDU was received */ |
; |
|
STREAM s; |
|
|
|
|
|
while ((s = rdp_recv(&type)) != NULL) |
|
|
{ |
|
|
switch (type) |
|
|
{ |
|
|
case RDP_PDU_DEMAND_ACTIVE: |
|
|
process_demand_active(s); |
|
|
*deactivated = False; |
|
|
break; |
|
|
|
|
|
case RDP_PDU_DEACTIVATE: |
|
|
DEBUG(("RDP_PDU_DEACTIVATE\n")); |
|
|
*deactivated = True; |
|
|
break; |
|
|
|
|
|
case RDP_PDU_DATA: |
|
|
disc = process_data_pdu(s, ext_disc_reason); |
|
|
break; |
|
|
|
|
|
case 0: |
|
|
break; |
|
|
|
|
|
default: |
|
|
unimpl("PDU %d\n", type); |
|
|
} |
|
|
|
|
|
if (disc) |
|
|
{ |
|
|
return; |
|
|
} |
|
|
} |
|
|
return; |
|
1163 |
} |
} |
1164 |
|
|
1165 |
/* used in uiports, processes the rdp packets waiting */ |
/* used in uiports and rdp_main_loop, processes the rdp packets waiting */ |
1166 |
BOOL |
BOOL |
1167 |
rdp_loop(BOOL * deactivated, uint32 * ext_disc_reason) |
rdp_loop(BOOL * deactivated, uint32 * ext_disc_reason) |
1168 |
{ |
{ |
1171 |
BOOL cont = True; |
BOOL cont = True; |
1172 |
STREAM s; |
STREAM s; |
1173 |
|
|
1174 |
while (cont) |
while (cont) |
1175 |
{ |
{ |
1176 |
s = rdp_recv(&type); |
s = rdp_recv(&type); |
1177 |
if (s == NULL) |
if (s == NULL) |