1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
|
/*****************************************************************************
Copyright (c) 2023 Jaroslav Hensl <emulator@emulace.cz>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*****************************************************************************/
/* Communication from ring3 PM16 -> ring0 PM32 */
#include <wchar.h> /* wchar_t */
#include <string.h> /* _fmemset */
#include <stdint.h>
#include "winhack.h" /* BOOL */
#include "vmwsvxd.h"
#include "control_vxd.h"
#ifdef DBGPRINT
extern void dbg_printf( const char *s, ... );
#else
#define dbg_printf(...)
#endif
static uint32_t VXD_srv = 0;
#pragma code_seg( _INIT )
BOOL VXD_load()
{
if(VXD_srv != 0)
{
return TRUE;
}
_asm{
push es
push ax
push dx
push bx
push di
xor di,di
mov es,di
mov ax, 1684H
mov bx, VMWSVXD_DEVICE_ID
int 2FH
mov word ptr [VXD_srv],di
mov word ptr [VXD_srv+2],es
pop di
pop bx
pop dx
pop ax
pop es
};
return VXD_srv != 0;
}
BOOL VXD_CreateRegion(uint32_t nPages, uint32_t __far *lpLAddr, uint32_t __far *lpPPN, uint32_t __far *lpPGBLKAddr)
{
static uint32_t snPages;
static uint32_t sLAddr;
static uint32_t sPPN;
static uint32_t sPGBLKAddr;
static uint16_t state = 0;
snPages = nPages;
if(VXD_srv != 0)
{
_asm
{
.386
push eax
push edx
push ecx
push ebx
mov edx, VMWSVXD_PM16_CREATE_REGION
mov ecx, [snPages]
call dword ptr [VXD_srv]
mov [state], ax
mov [sLAddr], edx
mov [sPPN], ecx
mov [sPGBLKAddr], ebx
pop ebx
pop ecx
pop edx
pop eax
};
if(state == 1)
{
*lpLAddr = sLAddr;
*lpPPN = sPPN;
*lpPGBLKAddr = sPGBLKAddr;
return TRUE;
}
else
{
dbg_printf("state: %X, LAddr: %lX, PPN: %lX\n", state, sLAddr, sPPN);
}
}
return FALSE;
}
BOOL VXD_FreeRegion(uint32_t LAddr, uint32_t PGBLKAddr)
{
static uint32_t sLAddr;
static uint16_t state;
static uint32_t sPGBLKAddr;
sLAddr = LAddr;
sPGBLKAddr = PGBLKAddr;
if(VXD_srv != 0)
{
_asm
{
.386
push eax
push edx
push ecx
push ebx
mov edx, VMWSVXD_PM16_DESTROY_REGION
mov ecx, [sLAddr]
mov ebx, [sPGBLKAddr]
call dword ptr [VXD_srv]
mov [state], ax
pop ebx
pop ecx
pop edx
pop eax
};
if(state == 1)
{
return TRUE;
}
}
return FALSE;
}
void VXD_zeromem(uint32_t LAddr, uint32_t size)
{
static uint32_t sLAddr;
static uint32_t ssize;
sLAddr = LAddr;
ssize = size;
if(VXD_srv != 0)
{
_asm
{
.386
push eax
push edx
push ecx
push esi
mov edx, VMWSVXD_PM16_ZEROMEM
mov esi, [sLAddr]
mov ecx, [ssize]
call dword ptr [VXD_srv]
pop esi
pop ecx
pop edx
pop eax
}
}
}
uint32_t VXD_apiver()
{
static uint32_t sver = 0;
if(VXD_srv != 0)
{
_asm
{
.386
push eax
push edx
push ecx
mov edx, VMWSVXD_PM16_APIVER
call dword ptr [VXD_srv]
mov [sver], ecx
pop ecx
pop edx
pop eax
}
}
return sver;
}
|
