trunk/rdesktop/rdp5.c

/* -*- c-basic-offset: 8 -*-
   rdesktop: A Remote Desktop Protocol client.
   Protocol services - Multipoint Communications Service
   Copyright (C) Matthew Chapman 1999-2002
   Copyright (C) Erik Forsberg 2003
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include "rdesktop.h"

extern uint8 *g_next_packet;

void
rdp5_process(STREAM s, BOOL encryption)
{
        uint16 length, count, x, y;
        uint8 type;
        uint8 *next;

        if (encryption)
        {
                in_uint8s(s, 8);        /* signature */
                sec_decrypt(s->p, s->end - s->p);
        }

#if 0
        printf("RDP5 data:\n");
        hexdump(s->p, s->end - s->p);
#endif

        while (s->p < s->end)
        {
                in_uint8(s, type);
                in_uint16_le(s, length);
                g_next_packet = next = s->p + length;

                switch (type)
                {
                                /* Thanks to Jeroen Meijer <jdmeijer at yahoo
                                   dot com> for finding out the meaning of
                                   most of the opcodes here. Especially opcode
                                   8! :) */
                        case 0: /* orders */
                                in_uint16_le(s, count);
                                process_orders(s, count);
                                break;
                        case 1: /* bitmap update (???) */
                                in_uint8s(s, 2);        /* part length */
                                process_bitmap_updates(s);
                                break;
                        case 2: /* palette */
                                in_uint8s(s, 2);        /* uint16 = 2 */
                                process_palette(s);
                                break;
                        case 3: /* probably an palette with offset 3. Weird */
                                break;
                        case 5:
                                process_null_system_pointer_pdu(s);
                                break;
                        case 8:
                                in_uint16_le(s, x);
                                in_uint16_le(s, y);
                                if (s_check(s))
                                        ui_move_pointer(x, y);
                                break;
                        case 9:
                                process_colour_pointer_pdu(s);
                                break;
                        case 10:
                                process_cached_pointer_pdu(s);
                                break;
                        default:
                                unimpl("RDP5 opcode %d\n", type);
                }

                s->p = next;
        }
}
1	forsberg	343	/* -- c-basic-offset: 8 --
2			rdesktop: A Remote Desktop Protocol client.
3			Protocol services - Multipoint Communications Service
4			Copyright (C) Matthew Chapman 1999-2002
5			Copyright (C) Erik Forsberg 2003
6
7			This program is free software; you can redistribute it and/or modify
8			it under the terms of the GNU General Public License as published by
9			the Free Software Foundation; either version 2 of the License, or
10			(at your option) any later version.
11
12			This program is distributed in the hope that it will be useful,
13			but WITHOUT ANY WARRANTY; without even the implied warranty of
14			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			GNU General Public License for more details.
16
17			You should have received a copy of the GNU General Public License
18			along with this program; if not, write to the Free Software
19			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20			*/
21
22			#include "rdesktop.h"
23
24	jsorg71	438	extern uint8 *g_next_packet;
25	forsberg	343
26			void
27	matthewc	423	rdp5_process(STREAM s, BOOL encryption)
28	forsberg	343	{
29	forsberg	428	uint16 length, count, x, y;
30	forsberg	343	uint8 type;
31			uint8 *next;
32
33			if (encryption)
34			{
35	matthewc	423	in_uint8s(s, 8); /* signature */
36	forsberg	343	sec_decrypt(s->p, s->end - s->p);
37			}
38
39			#if 0
40			printf("RDP5 data:\n");
41			hexdump(s->p, s->end - s->p);
42			#endif
43
44			while (s->p < s->end)
45			{
46			in_uint8(s, type);
47			in_uint16_le(s, length);
48	jsorg71	438	g_next_packet = next = s->p + length;
49	forsberg	343
50			switch (type)
51			{
52	astrand	435	/* Thanks to Jeroen Meijer <jdmeijer at yahoo
53			dot com> for finding out the meaning of
54			most of the opcodes here. Especially opcode
55			8! :) */
56	forsberg	343	case 0: /* orders */
57			in_uint16_le(s, count);
58			process_orders(s, count);
59			break;
60			case 1: /* bitmap update (???) */
61			in_uint8s(s, 2); /* part length */
62			process_bitmap_updates(s);
63			break;
64			case 2: /* palette */
65			in_uint8s(s, 2); /* uint16 = 2 */
66			process_palette(s);
67			break;
68	forsberg	411	case 3: /* probably an palette with offset 3. Weird */
69	forsberg	343	break;
70			case 5:
71			process_null_system_pointer_pdu(s);
72			break;
73	astrand	435	case 8:
74	forsberg	428	in_uint16_le(s, x);
75			in_uint16_le(s, y);
76			if (s_check(s))
77			ui_move_pointer(x, y);
78			break;
79	forsberg	343	case 9:
80			process_colour_pointer_pdu(s);
81			break;
82			case 10:
83			process_cached_pointer_pdu(s);
84			break;
85			default:
86			unimpl("RDP5 opcode %d\n", type);
87			}
88
89			s->p = next;
90			}
91			}