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, uint8 * rdpver) |
76 |
{ |
{ |
77 |
STREAM s; |
STREAM s; |
78 |
uint16 length; |
uint16 length; |
79 |
uint8 version; |
uint8 version; |
80 |
|
|
|
next_packet: |
|
81 |
s = tcp_recv(NULL, 4); |
s = tcp_recv(NULL, 4); |
82 |
if (s == NULL) |
if (s == NULL) |
83 |
return NULL; |
return NULL; |
|
|
|
84 |
in_uint8(s, version); |
in_uint8(s, version); |
85 |
switch (version & 3) |
if (rdpver != NULL) |
86 |
|
*rdpver = version; |
87 |
|
if (version == 3) |
88 |
{ |
{ |
89 |
case 0: |
in_uint8s(s, 1); /* pad */ |
90 |
in_uint8(s, length); |
in_uint16_be(s, length); |
91 |
if (length & 0x80) |
} |
92 |
{ |
else |
93 |
length &= ~0x80; |
{ |
94 |
next_be(s, length); |
in_uint8(s, length); |
95 |
} |
if (length & 0x80) |
96 |
break; |
{ |
97 |
|
length &= ~0x80; |
98 |
case 3: |
next_be(s, length); |
99 |
in_uint8s(s, 1); /* pad */ |
} |
|
in_uint16_be(s, length); |
|
|
break; |
|
|
|
|
|
default: |
|
|
error("TPKT v%d\n", version); |
|
|
return NULL; |
|
100 |
} |
} |
|
|
|
101 |
s = tcp_recv(s, length - 4); |
s = tcp_recv(s, length - 4); |
102 |
if (s == NULL) |
if (s == NULL) |
103 |
return NULL; |
return NULL; |
104 |
|
if (version != 3) |
105 |
if ((version & 3) == 0) |
return s; |
|
{ |
|
|
rdp5_process(s, version & 0x80); |
|
|
goto next_packet; |
|
|
} |
|
|
|
|
106 |
in_uint8s(s, 1); /* hdrlen */ |
in_uint8s(s, 1); /* hdrlen */ |
107 |
in_uint8(s, *code); |
in_uint8(s, *code); |
|
|
|
108 |
if (*code == ISO_PDU_DT) |
if (*code == ISO_PDU_DT) |
109 |
{ |
{ |
110 |
in_uint8s(s, 1); /* eot */ |
in_uint8s(s, 1); /* eot */ |
111 |
return s; |
return s; |
112 |
} |
} |
|
|
|
113 |
in_uint8s(s, 5); /* dst_ref, src_ref, class */ |
in_uint8s(s, 5); /* dst_ref, src_ref, class */ |
114 |
return s; |
return s; |
115 |
} |
} |
148 |
|
|
149 |
/* Receive ISO transport data packet */ |
/* Receive ISO transport data packet */ |
150 |
STREAM |
STREAM |
151 |
iso_recv(void) |
iso_recv(uint8 * rdpver) |
152 |
{ |
{ |
153 |
STREAM s; |
STREAM s; |
154 |
uint8 code; |
uint8 code = 0; |
155 |
|
|
156 |
s = iso_recv_msg(&code); |
s = iso_recv_msg(&code, rdpver); |
157 |
if (s == NULL) |
if (s == NULL) |
158 |
return NULL; |
return NULL; |
159 |
|
if (rdpver != NULL) |
160 |
|
if (*rdpver != 3) |
161 |
|
return s; |
162 |
if (code != ISO_PDU_DT) |
if (code != ISO_PDU_DT) |
163 |
{ |
{ |
164 |
error("expected DT, got 0x%x\n", code); |
error("expected DT, got 0x%x\n", code); |
165 |
return NULL; |
return NULL; |
166 |
} |
} |
|
|
|
167 |
return s; |
return s; |
168 |
} |
} |
169 |
|
|
171 |
BOOL |
BOOL |
172 |
iso_connect(char *server, char *username) |
iso_connect(char *server, char *username) |
173 |
{ |
{ |
174 |
uint8 code; |
uint8 code = 0; |
175 |
|
|
176 |
if (!tcp_connect(server)) |
if (!tcp_connect(server)) |
177 |
return False; |
return False; |
178 |
|
|
179 |
iso_send_connection_request(username); |
iso_send_connection_request(username); |
180 |
|
|
181 |
if (iso_recv_msg(&code) == NULL) |
if (iso_recv_msg(&code, NULL) == NULL) |
182 |
return False; |
return False; |
183 |
|
|
184 |
if (code != ISO_PDU_CC) |
if (code != ISO_PDU_CC) |