1 |
/* |
/* -*- c-basic-offset: 8 -*- |
2 |
rdesktop: A Remote Desktop Protocol client. |
rdesktop: A Remote Desktop Protocol client. |
3 |
Protocol services - ISO layer |
Protocol services - ISO layer |
4 |
Copyright (C) Matthew Chapman 1999-2001 |
Copyright (C) Matthew Chapman 1999-2002 |
5 |
|
|
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 |
42 |
tcp_send(s); |
tcp_send(s); |
43 |
} |
} |
44 |
|
|
45 |
|
static void |
46 |
|
iso_send_connection_request(char *username) |
47 |
|
{ |
48 |
|
STREAM s; |
49 |
|
int length = 30 + strlen(username); |
50 |
|
|
51 |
|
s = tcp_init(length); |
52 |
|
|
53 |
|
out_uint8(s, 3); /* version */ |
54 |
|
out_uint8(s, 0); /* reserved */ |
55 |
|
out_uint16_be(s, length); /* length */ |
56 |
|
|
57 |
|
out_uint8(s, length - 5); /* hdrlen */ |
58 |
|
out_uint8(s, ISO_PDU_CR); |
59 |
|
out_uint16(s, 0); /* dst_ref */ |
60 |
|
out_uint16(s, 0); /* src_ref */ |
61 |
|
out_uint8(s, 0); /* class */ |
62 |
|
|
63 |
|
out_uint8p(s, "Cookie: mstshash=", strlen("Cookie: mstshash=")); |
64 |
|
out_uint8p(s, username, strlen(username)); |
65 |
|
|
66 |
|
out_uint8(s, 0x0d); /* Unknown */ |
67 |
|
out_uint8(s, 0x0a); /* Unknown */ |
68 |
|
|
69 |
|
s_mark_end(s); |
70 |
|
tcp_send(s); |
71 |
|
} |
72 |
|
|
73 |
/* Receive a message on the ISO layer, return code */ |
/* Receive a message on the ISO layer, return code */ |
74 |
static STREAM |
static STREAM |
75 |
iso_recv_msg(uint8 * code) |
iso_recv_msg(uint8 * code) |
78 |
uint16 length; |
uint16 length; |
79 |
uint8 version; |
uint8 version; |
80 |
|
|
81 |
s = tcp_recv(4); |
next_packet: |
82 |
|
s = tcp_recv(NULL, 4); |
83 |
if (s == NULL) |
if (s == NULL) |
84 |
return NULL; |
return NULL; |
85 |
|
|
86 |
in_uint8(s, version); |
in_uint8(s, version); |
87 |
if (version != 3) |
switch (version & 3) |
88 |
{ |
{ |
89 |
error("TPKT v%d\n", version); |
case 0: |
90 |
return NULL; |
in_uint8(s, length); |
91 |
|
if (length & 0x80) |
92 |
|
{ |
93 |
|
length &= ~0x80; |
94 |
|
next_be(s, length); |
95 |
|
} |
96 |
|
break; |
97 |
|
|
98 |
|
case 3: |
99 |
|
in_uint8s(s, 1); /* pad */ |
100 |
|
in_uint16_be(s, length); |
101 |
|
break; |
102 |
|
|
103 |
|
default: |
104 |
|
error("TPKT v%d\n", version); |
105 |
|
return NULL; |
106 |
} |
} |
107 |
|
|
108 |
in_uint8s(s, 1); /* pad */ |
s = tcp_recv(s, length - 4); |
|
in_uint16_be(s, length); |
|
|
|
|
|
s = tcp_recv(length - 4); |
|
109 |
if (s == NULL) |
if (s == NULL) |
110 |
return NULL; |
return NULL; |
111 |
|
|
112 |
|
if ((version & 3) == 0) |
113 |
|
{ |
114 |
|
rdp5_process(s, version & 0x80); |
115 |
|
goto next_packet; |
116 |
|
} |
117 |
|
|
118 |
in_uint8s(s, 1); /* hdrlen */ |
in_uint8s(s, 1); /* hdrlen */ |
119 |
in_uint8(s, *code); |
in_uint8(s, *code); |
120 |
|
|
162 |
|
|
163 |
/* Receive ISO transport data packet */ |
/* Receive ISO transport data packet */ |
164 |
STREAM |
STREAM |
165 |
iso_recv() |
iso_recv(void) |
166 |
{ |
{ |
167 |
STREAM s; |
STREAM s; |
168 |
uint8 code; |
uint8 code; |
182 |
|
|
183 |
/* Establish a connection up to the ISO layer */ |
/* Establish a connection up to the ISO layer */ |
184 |
BOOL |
BOOL |
185 |
iso_connect(char *server) |
iso_connect(char *server, char *username) |
186 |
{ |
{ |
187 |
uint8 code; |
uint8 code; |
188 |
|
|
189 |
if (!tcp_connect(server)) |
if (!tcp_connect(server)) |
190 |
return False; |
return False; |
191 |
|
|
192 |
iso_send_msg(ISO_PDU_CR); |
iso_send_connection_request(username); |
193 |
|
|
194 |
if (iso_recv_msg(&code) == NULL) |
if (iso_recv_msg(&code) == NULL) |
195 |
return False; |
return False; |
206 |
|
|
207 |
/* Disconnect from the ISO layer */ |
/* Disconnect from the ISO layer */ |
208 |
void |
void |
209 |
iso_disconnect() |
iso_disconnect(void) |
210 |
{ |
{ |
211 |
iso_send_msg(ISO_PDU_DR); |
iso_send_msg(ISO_PDU_DR); |
212 |
tcp_disconnect(); |
tcp_disconnect(); |