ReactOS 0.4.15-dev-8102-g108db8f
iso.c
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1/* -*- c-basic-offset: 8 -*-
2 rdesktop: A Remote Desktop Protocol client.
3 Protocol services - ISO layer
4 Copyright (C) Matthew Chapman 1999-2005
5
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.
10
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.
15
16 You should have received a copy of the GNU General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19*/
20
21#include "rdesktop.h"
22
23/* Send a self-contained ISO PDU */
24static BOOL
26{
27 STREAM s;
28
29 s = tcp_init(This, 11);
30
31 if(s == NULL)
32 return False;
33
34 out_uint8(s, 3); /* version */
35 out_uint8(s, 0); /* reserved */
36 out_uint16_be(s, 11); /* length */
37
38 out_uint8(s, 6); /* hdrlen */
40 out_uint16(s, 0); /* dst_ref */
41 out_uint16(s, 0); /* src_ref */
42 out_uint8(s, 0); /* class */
43
45 return tcp_send(This, s);
46}
47
48static BOOL
50{
51 STREAM s;
52 int cookielen = (int)strlen(cookie);
53 int length = 11 + cookielen;
54
56
57 if(s == NULL)
58 return False;
59
60 out_uint8(s, 3); /* version */
61 out_uint8(s, 0); /* reserved */
62 out_uint16_be(s, length); /* length */
63
64 out_uint8(s, length - 5); /* hdrlen */
66 out_uint16(s, 0); /* dst_ref */
67 out_uint16(s, 0); /* src_ref */
68 out_uint8(s, 0); /* class */
69
70 out_uint8p(s, cookie, cookielen);
71
73 return tcp_send(This, s);
74}
75
76/* Receive a message on the ISO layer, return code */
77static STREAM
79{
80 STREAM s;
83
84 s = tcp_recv(This, NULL, 4);
85 if (s == NULL)
86 return NULL;
88 if (rdpver != NULL)
89 *rdpver = version;
90 if (version == 3)
91 {
92 in_uint8s(s, 1); /* pad */
94 }
95 else
96 {
98 if (length & 0x80)
99 {
100 length &= ~0x80;
101 next_be(s, length);
102 }
103 }
104 s = tcp_recv(This, s, length - 4);
105 if (s == NULL)
106 return NULL;
107 if (version != 3)
108 return s;
109 in_uint8s(s, 1); /* hdrlen */
110 in_uint8(s, *code);
111 if (*code == ISO_PDU_DT)
112 {
113 in_uint8s(s, 1); /* eot */
114 return s;
115 }
116 in_uint8s(s, 5); /* dst_ref, src_ref, class */
117 return s;
118}
119
120/* Initialise ISO transport data packet */
121STREAM
123{
124 STREAM s;
125
126 s = tcp_init(This, length + 7);
127
128 if(s == NULL)
129 return NULL;
130
131 s_push_layer(s, iso_hdr, 7);
132
133 return s;
134}
135
136/* Send an ISO data PDU */
137BOOL
139{
141
142 s_pop_layer(s, iso_hdr);
143 length = (uint16)(s->end - s->p);
144
145 out_uint8(s, 3); /* version */
146 out_uint8(s, 0); /* reserved */
148
149 out_uint8(s, 2); /* hdrlen */
150 out_uint8(s, ISO_PDU_DT); /* code */
151 out_uint8(s, 0x80); /* eot */
152
153 return tcp_send(This, s);
154}
155
156/* Receive ISO transport data packet */
157STREAM
159{
160 STREAM s;
161 uint8 code = 0;
162
163 s = iso_recv_msg(This, &code, rdpver);
164 if (s == NULL)
165 return NULL;
166 if (rdpver != NULL)
167 if (*rdpver != 3)
168 return s;
169 if (code != ISO_PDU_DT)
170 {
171 error("expected DT, got 0x%x\n", code);
172 return NULL;
173 }
174 return s;
175}
176
177/* Establish a connection up to the ISO layer */
178BOOL
180{
181 uint8 code = 0;
182
183 if (!tcp_connect(This, server))
184 return False;
185
187 return False;
188
189 if (iso_recv_msg(This, &code, NULL) == NULL)
190 return False;
191
192 if (code != ISO_PDU_CC)
193 {
194 error("expected CC, got 0x%x\n", code);
196 return False;
197 }
198
199 return True;
200}
201
202/* Establish a reconnection up to the ISO layer */
203BOOL
205{
206 uint8 code = 0;
207
208 if (!tcp_connect(This, server))
209 return False;
210
211 if (!iso_send_connection_request(This, cookie)) // BUGBUG should we really pass the cookie here?
212 return False;
213
214 if (iso_recv_msg(This, &code, NULL) == NULL)
215 return False;
216
217 if (code != ISO_PDU_CC)
218 {
219 error("expected CC, got 0x%x\n", code);
221 return False;
222 }
223
224 return True;
225}
226
227/* Disconnect from the ISO layer */
228BOOL
230{
232 return tcp_disconnect(This);
233}
234
235/* reset the state to support reconnecting */
236void
238{
240}
ACPI_SIZE strlen(const char *String)
Definition: utclib.c:269
@ ISO_PDU_CC
Definition: constants.h:30
@ ISO_PDU_CR
Definition: constants.h:29
@ ISO_PDU_DT
Definition: constants.h:32
@ ISO_PDU_DR
Definition: constants.h:31
static void iso_send_msg(uint8 code)
Definition: iso.c:39
static STREAM iso_recv_msg(uint8 *code, uint8 *rdpver)
Definition: iso.c:101
static void iso_send_connection_request(char *username, uint32 neg_proto)
Definition: iso.c:60
void iso_reset_state(void)
Definition: iso.c:370
RD_BOOL iso_connect(char *server, char *username, char *domain, char *password, RD_BOOL reconnect, uint32 *selected_protocol)
Definition: iso.c:203
void iso_send(STREAM s)
Definition: iso.c:162
STREAM iso_init(int length)
Definition: iso.c:150
void iso_disconnect(void)
Definition: iso.c:362
STREAM iso_recv(uint8 *rdpver)
Definition: iso.c:182
#define s_mark_end(s)
Definition: parse.h:41
#define s_pop_layer(s, h)
Definition: parse.h:40
#define out_uint8(s, v)
Definition: parse.h:92
#define s_push_layer(s, h, n)
Definition: parse.h:39
#define out_uint16_be(s, v)
Definition: parse.h:77
#define in_uint8s(s, n)
Definition: parse.h:91
#define next_be(s, v)
Definition: parse.h:97
#define in_uint8(s, v)
Definition: parse.h:88
#define in_uint16_be(s, v)
Definition: parse.h:75
#define out_uint8p(s, v, n)
Definition: parse.h:93
#define out_uint16(s, v)
Definition: parse.h:84
void tcp_disconnect(void)
Definition: tcp.c:832
void tcp_send(STREAM s)
Definition: tcp.c:270
void tcp_reset_state(void)
Definition: tcp.c:894
STREAM tcp_recv(STREAM s, uint32 length)
Definition: tcp.c:344
RD_BOOL tcp_connect(char *server)
Definition: tcp.c:717
STREAM tcp_init(uint32 maxlen)
Definition: tcp.c:82
unsigned short uint16
Definition: types.h:30
#define False
Definition: types.h:25
#define True
Definition: types.h:24
unsigned char uint8
Definition: types.h:28
#define NULL
Definition: types.h:112
static const WCHAR version[]
Definition: asmname.c:66
unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31
unsigned int BOOL
Definition: ntddk_ex.h:94
GLdouble s
Definition: gl.h:2039
GLuint GLsizei GLsizei * length
Definition: glext.h:6040
#define error(str)
Definition: mkdosfs.c:1605
BOOL iso_reconnect(RDPCLIENT *This, char *server, char *cookie)
Definition: iso.c:204
Definition: inflate.c:139
Definition: cookie.c:34
Definition: parse.h:23
static rfbScreenInfoPtr server
Definition: vnc.c:74