1 /* -*- c-basic-offset: 8 -*-
2 rdesktop: A Remote Desktop Protocol client.
3 Protocol services - RDP layer
4 Copyright (C) Matthew Chapman 1999-2002
6 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
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 extern uint16 g_mcs_userid;
25 extern char g_username[16];
26 extern BOOL g_bitmap_compression;
28 BOOL g_encryption = 0;
29 extern BOOL g_desktop_save;
30 extern BOOL g_use_rdp5;
31 extern uint16 g_server_rdp_version;
32 extern int g_server_bpp;
38 static uint32 g_packetno;
41 /* Receive an RDP packet */
43 rdp_recv(uint8 * type)
46 uint16 length, pdu_type;
48 if ((rdp_s == NULL) || (g_next_packet >= rdp_s->end))
54 g_next_packet = rdp_s->p;
58 rdp_s->p = g_next_packet;
61 in_uint16_le(rdp_s, length);
62 /* 32k packets are really 8, keepalive fix */
69 in_uint16_le(rdp_s, pdu_type);
70 in_uint8s(rdp_s, 2); /* userid */
71 *type = pdu_type & 0xf;
74 DEBUG(("RDP packet #%d, (type %x, length %u)\n", ++g_packetno, *type, length));
75 hexdump(g_next_packet, length);
78 g_next_packet += length;
82 /* Initialise an RDP data packet */
84 rdp_init_data(int maxlen)
88 s = sec_init(g_encryption ? SEC_ENCRYPT : 0, maxlen + 18);
89 s_push_layer(s, rdp_hdr, 18);
94 /* Send an RDP data packet */
96 rdp_send_data(STREAM s, uint8 data_pdu_type)
100 s_pop_layer(s, rdp_hdr);
101 length = s->end - s->p;
103 out_uint16_le(s, length);
104 out_uint16_le(s, (RDP_PDU_DATA | 0x10));
105 out_uint16_le(s, (g_mcs_userid + 1001));
107 out_uint32_le(s, g_rdp_shareid);
108 out_uint8(s, 0); /* pad */
109 out_uint8(s, 1); /* streamid */
110 out_uint16_le(s, (length - 14));
111 out_uint8(s, data_pdu_type);
112 out_uint8(s, 0); /* compress_type */
113 out_uint16(s, 0); /* compress_len */
115 sec_send(s, g_encryption ? SEC_ENCRYPT : 0);
118 /* Output a string in Unicode */
120 rdp_out_unistr(STREAM s, char *string, int len)
128 s->p[i++] = string[j++];
135 /* Input a string in Unicode (uuuuuuugly, use iconv later) */
137 rdp_in_unistr(STREAM s, char *string, int len)
144 string[j++] = s->p[i];
151 void rdp_send_bitmap_update(unsigned x, unsigned y, unsigned width, unsigned height, unsigned char *data)
155 int length = 10*2 + width*height*3 + 5 + 3;
157 s = rdp5_init(length, 1);
159 out_uint8(s, 3); // ??
160 out_uint16_le(s, 0); // length
162 out_uint8(s, 1); // process bitmap update
163 out_uint16_le(s, 10*2 + width*height*3 + 2); // RDP5 chunk length
164 out_uint16_le(s, 10*2 + width*height*3); // part length
166 out_uint16_le(s, 1); // one update
167 out_uint16_le(s, x); // left, top, right, bottom
169 out_uint16_le(s, x+width);
170 out_uint16_le(s, y+height);
171 out_uint16_le(s, width); // width, height
172 out_uint16_le(s, height);
173 out_uint16_le(s, 24); // bpp
174 out_uint16_le(s, 0); // no compression
175 out_uint16_le(s, width*height*3); // bufsize
177 out_uint8p(s, data, width*height*3);
183 #define EXPECT16(value) { in_uint16_le(s, unknown); if (unknown != (value)) printf("Unknown value on code line %u; expected 0x%x, got 0x%x\n", __LINE__, (value), unknown); }
184 #define EXPECT32(value) { in_uint32_le(s, unknown); if (unknown != (value)) printf("Unknown value on code line %u; expected 0x%x, got 0x%x\n", __LINE__, (value), unknown); }
187 rdp_get_logon_info(STREAM s)
189 uint32 flags, unknown;
190 uint16 tzone_major, tzone_minor;
191 int len_domain, len_user, len_password, len_program, len_directory, len_ip, len_dll;
192 char domain[256], user[256], password[256], program[256], directory[256], ip[256], dll[256], tz1[256], tz2[256]; // FIXME
194 in_uint32_le(s, unknown);
195 in_uint32_le(s, flags);
197 printf("logon flags: %x\n", flags);
199 if (flags & RDP_LOGON_BLOB) {
200 printf("RDP5-style logon packet\n");
202 in_uint16_le(s, len_domain);
203 in_uint16_le(s, len_user);
205 if (flags & RDP_LOGON_AUTO) {
206 in_uint16_le(s, len_password);
208 strcpy(password, "<none>");
210 if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO)) {
211 // is this too some kind of length?
214 in_uint16_le(s, len_program);
215 in_uint16_le(s, len_directory);
217 rdp_in_unistr(s, domain, len_domain);
218 rdp_in_unistr(s, user, len_user);
220 if (flags & RDP_LOGON_AUTO)
221 rdp_in_unistr(s, password, len_password);
223 if (flags & RDP_LOGON_BLOB && !(flags & RDP_LOGON_AUTO))
226 rdp_in_unistr(s, program, len_program);
227 rdp_in_unistr(s, directory, len_directory);
231 in_uint16_le(s, len_ip);
232 rdp_in_unistr(s, ip, len_ip - 2);
234 in_uint16_le(s, len_dll);
235 rdp_in_unistr(s, dll, len_dll - 2);
237 in_uint16_le(s, tzone_major);
238 in_uint16_le(s, tzone_minor);
241 rdp_in_unistr(s, tz1, 62);
248 rdp_in_unistr(s, tz2, 62);
253 EXPECT32(0xffffffc4);
254 EXPECT32(0xfffffffe);
258 printf("domain='%s'\n", domain);
259 printf("user='%s'\n", user);
260 printf("password='%s'\n", password);
261 printf("program='%s'\n", program);
262 printf("directory='%s'\n", directory);
263 printf("ip='%s'\n", ip);
264 printf("dll='%s'\n", dll);
265 printf("timezone=%d:%02d\n", tzone_major, tzone_minor);
266 printf("tz1='%64s'\n", tz1);
267 printf("tz2='%64s'\n", tz2);
269 in_uint16_le(s, len_domain);
270 in_uint16_le(s, len_user);
271 in_uint16_le(s, len_password);
272 in_uint16_le(s, len_program);
273 in_uint16_le(s, len_directory);
274 rdp_in_unistr(s, domain, len_domain);
275 rdp_in_unistr(s, user, len_user);
276 rdp_in_unistr(s, password, len_password);
277 rdp_in_unistr(s, program, len_program);
278 rdp_in_unistr(s, directory, len_directory);
280 printf("domain='%s'\n", domain);
281 printf("user='%s'\n", user);
282 printf("password='%s'\n", password);
283 printf("program='%s'\n", program);
284 printf("directory='%s'\n", directory);
287 if (!s_check_end(s)) {
288 printf("Unknown data at end of logon packet!\n");
292 /* Send a control PDU */
294 rdp_send_control(uint16 action)
298 s = rdp_init_data(8);
300 out_uint16_le(s, action);
301 out_uint16(s, 0); /* userid */
302 out_uint32(s, 0); /* control id */
305 rdp_send_data(s, RDP_DATA_PDU_CONTROL);
308 /* Send a synchronisation PDU */
310 rdp_send_synchronise(uint16 id)
314 s = rdp_init_data(4);
316 out_uint16_le(s, 1); /* type */
317 out_uint16_le(s, id);
320 rdp_send_data(s, RDP_DATA_PDU_SYNCHRONISE);
323 /* Receive a single input event */
325 rdp_recv_input(STREAM s, uint32 *time, uint16 *message_type, uint16 *device_flags, uint16 *param1, uint16 *param2)
327 in_uint32_le(s, *time);
328 in_uint16_le(s, *message_type);
329 in_uint16_le(s, *device_flags);
330 in_uint16_le(s, *param1);
331 in_uint16_le(s, *param2);
334 /* Disconnect from the RDP layer */