-
Notifications
You must be signed in to change notification settings - Fork 14
/
amx.inc
149 lines (121 loc) · 4.2 KB
/
amx.inc
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
// Copyright (C) 2012 Zeex
//
// 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.
#if defined AMX_INC
#endinput
#endif
#define AMX_INC
/**
* <library name="amx_assembly amx" summary="AMX Assembly Library: `AMX*` struct pointer determination.">
* <summary pawndoc="true">
* This library uses the enhanced <em>pawndoc.xsl</em> from
* <a href="https://github.com/pawn-lang/pawndoc">pawn-lang/pawndoc</a>.
* This XSL has features such as library and markdown support, and will not
* render this message when used.
* </summary>
* </library>
*/
/// <p/>
#include "phys_memory"
#include "shellcode"
/// <library>amx_assembly amx</library>
const AMX_OFFSET_BASE = 0;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_DATA = 4;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_CALLBACK = 8;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_DEBUG = 12;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_CIP = 16;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_FRM = 20;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_HEA = 24;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_HLW = 28;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_STK = 32;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_STP = 36;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_FLAGS = 40;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_USERTAGS = 44;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_USERDATA = 60;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_ERROR = 76;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_PARAMCOUNT = 80;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_PRI = 84;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_ALT = 88;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_RESET_STK = 92;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_RESET_HEA = 96;
/// <library>amx_assembly amx</library>
const AMX_OFFSET_SYSREQ_D = 100;
/// <library>amx_assembly amx</library>
/// <summary>
/// Returns the address of the AMX struct instance in memory that corresponds
/// to this script. This function works only on Windows!
/// </summary>
stock GetAmxAddress() {
static address = 0;
if (address == 0) {
#if cellbits == 32
static const code[] = {
0x90909090, 0x90909090, 0x90909090, 0x90909090, // for alignment
0x0424448B, 0xC3C3C3C3
// 8B 44 24 04 - MOV eax, [esp + arg_0]
// C3 - RETN
};
#elseif cellbits == 64
static const code[] = {
0x9090909090909090, 0x9090909090909090, // for alignment
0xC3C3C3C30424448B
// 8B 44 24 04 - MOV eax, [esp + arg_0]
// C3 - RETN
};
#else
#error Unsupported `cellbits`.
#endif
address = RunShellcode(refabs(code));
}
return address;
}
/// <library>amx_assembly amx</library>
/// <summary>
/// Reads a cell from the AMX struct.
/// </summary>
stock ReadAmxCell(offset) {
new amx = GetAmxAddress();
return ReadPhysMemoryCell(amx + offset);
}
/// <library>amx_assembly amx</library>
/// <summary>
/// Writes a cell to the AMX struct.
/// </summary>
stock WriteAmxCell(offset, value) {
new amx = GetAmxAddress();
WritePhysMemoryCell(amx + offset, value);
}