-
Notifications
You must be signed in to change notification settings - Fork 3
/
ida.idc
264 lines (234 loc) · 8.84 KB
/
ida.idc
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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
//
// This file is automatically executed when IDA is started.
// You can define your own IDC functions and assign hotkeys to them.
//
// You may add your frequently used functions here and they will
// be always available.
//
//
#include <idc.idc>
//跳转到光标处函数的开头处
static GotoCursorFuncStart()
{
auto startaddr;
startaddr=GetFunctionAttr(ScreenEA(),FUNCATTR_START);
Jump(startaddr);
}
//跳转到光标处函数的结尾处
static GotoCursorFuncEnd()
{
auto endaddr;
endaddr=GetFunctionAttr(ScreenEA(),FUNCATTR_END);
endaddr=FindCode(endaddr,SEARCH_UP);
Jump(endaddr);
}
//列举指定函数的所有被调非库函数,如果本函数是叶节点非库函数,就加入全局叶函数数组中
static ListCallees(func,arridCallees,arridCnt,arridWalkedFuncs)
{
auto name,end,inst,xref,target,calleescnt,WalkedCnt,bLeaf;
name=Name(func);
end=GetFunctionAttr(func,FUNCATTR_END);
calleescnt=0;
bLeaf=1;
//if(name!=-1)
//Message("------ListCallees func %s------\n",name);//死循环后会出现一直runing
//将该函数加入walked数组
WalkedCnt=GetArrayElement(AR_LONG,arridCnt,1);
SetArrayLong(arridWalkedFuncs,WalkedCnt,func);
WalkedCnt++;
SetArrayLong(arridCnt,1,WalkedCnt);
for(inst=func; inst<end; inst=FindCode(inst,SEARCH_DOWN|SEARCH_NEXT))//遍历该函数的所有指令
{
for(target=Rfirst(inst); target!=BADADDR; target=Rnext(inst,target))//遍历每条指令的from me引用列表
{
xref=XrefType();
if(xref==fl_JN || xref==fl_JF) //找到了跳转引用
{
//if(GetMnem(inst)=="jmp")
//{
if(GetFunctionAttr(target,FUNCATTR_START) == target && target!=func)//若jmp指令恰好跳到外部的另外一个函数
{
auto jmpfuncname;
jmpfuncname=Name(target);
//if(name!=-1 && jmpfuncname!=-1)
//Message("--------------------%s jmp %s-------------------\n",name,jmpfuncname);
if( !(GetFunctionFlags(target) & FUNC_LIB) && strstr(jmpfuncname,"xy")!=0 && strstr(jmpfuncname,"XY")!=0 && strstr(jmpfuncname,"Xy")!=0 )
{
bLeaf=0;
ListCallees(target,arridCallees,arridCnt,arridWalkedFuncs);
}
}
//}
}
else if(xref==fl_CN || xref==fl_CF) //找到了一个调用的目标函数
{
auto tgtname,i;
for(i=0;i<WalkedCnt;i++)
{
if(GetArrayElement(AR_LONG,arridWalkedFuncs,i) == target)
break;
}
//如果调用的不是递归自身,也不是先前已经遍历的函数,也不是库函数,也不是xy前缀开头的用户改名后的自定义函数
if(i==WalkedCnt)
{
tgtname=Name(target);
if( !(GetFunctionFlags(target) & FUNC_LIB) && strstr(tgtname,"xy")!=0 && strstr(tgtname,"XY")!=0 && strstr(tgtname,"Xy")!=0 )
{
calleescnt++;
bLeaf=0;
//Message("----called %s at %d----\n",name,inst);
ListCallees(target,arridCallees,arridCnt,arridWalkedFuncs);
}
}
else if(target!=func)//若调用了先前遍历的那些函数
{
calleescnt++;
bLeaf=0;
}
}
}
}
if(bLeaf)//将本函数放入全局数组中
{
auto cnt;
//Message("%s is a leaf func-------------------------------------------\n",name);
cnt=GetArrayElement(AR_LONG,arridCnt,0);
SetArrayLong(arridCallees,cnt,func);
cnt++;
SetArrayLong(arridCnt,0,cnt);
}
}
//枚举光标处函数最终调用的所有非库、未重命名的叶节点函数
static ListLeafFuns()
{
auto func,name;
func=GetFunctionAttr(ScreenEA(),FUNCATTR_START);
name=Name(func);
if(func!=BADADDR)
{
auto arridCallees,arridCnt,arridWalkedFuncs,cnt,i,acnt,subcnt;//callees数组和全局变量元素个数
arridCallees=GetArrayId("xy_callees");
if(arridCallees!=-1)
{
//Message("DeleteArray \"xy_callees\"\n");
DeleteArray(arridCallees);
}
arridCallees=CreateArray("xy_callees");
arridCnt=GetArrayId("xy_cnt");
if(arridCnt!=-1)
{
//Message("DeleteArray \"xy_cnt\"\n");
DeleteArray(arridCnt);
}
arridCnt=CreateArray("xy_cnt");
SetArrayLong(arridCnt,0,0);//cnt1=0,指叶节点函数个数
arridWalkedFuncs=GetArrayId("xy_WalkedFuncs");
if(arridWalkedFuncs!=-1)
{
//Message("DeleteArray \"xy_WalkedFuncs\"\n");
DeleteArray(arridWalkedFuncs);
}
arridWalkedFuncs=CreateArray("xy_WalkedFuncs");
SetArrayLong(arridCnt,1,0);//cnt2=0,指已遍历的函数个数
Message(" %s called all leaf funcs\n",name);
ListCallees(func,arridCallees,arridCnt,arridWalkedFuncs);
cnt=GetArrayElement(AR_LONG,arridCnt,0);
//Message("cnt=%d\n",cnt);
if((cnt==1 && GetArrayElement(AR_LONG,arridCallees,0)==func) || cnt==0)
{
Message("\n yeah,%s self is just a leaf func!\n\n",name);//自己本身就是一个叶节点函数
}
else
{
acnt=0;//实际除去重复后的函数个数
subcnt=0;//sub_xxx函数的个数
for(i=0;i<cnt;i++)
{
auto funcaddr,funcname;
funcaddr=GetArrayElement(AR_LONG,arridCallees,i);
funcname=Name(funcaddr);
if(i==0)
{
acnt++;
if(strstr(funcname,"sub_")==0)
{
subcnt++;
}
Message(" %s\n",funcname);
}
//忽略数组里面前面重复的函数
else
{
auto j;
for(j=0;j<i;j++)
{
if(GetArrayElement(AR_LONG,arridCallees,j) == funcaddr)
break;
}
if(j==i)
{
acnt++;
if(strstr(funcname,"sub_")==0)
{
subcnt++;
}
Message(" %s\n",funcname);
}
}
}
Message(" (sum: %d, sub_xxx: %d)\n",acnt,subcnt);
}
DeleteArray(arridCallees);
DeleteArray(arridCnt);
DeleteArray(arridWalkedFuncs);
}
else
{
Warning("There is no func at current cursor");
}
}
//This function is executed when IDA is started.
static main(void)
{
auto flagline;
flagline="-----------------";
/////////////////////////////////////////////////热键任务/////////////////////////////////////////////////////
if( AddHotkey("Ctrl+[","GotoCursorFuncStart")!=IDCHK_OK )
Message("%sAddHotkey Ctrl+[ failed!(goto func start)%s\n",flagline,flagline);
else
Message("%sAddHotkey Ctrl+[ succeed!(goto func start)%s\n",flagline,flagline);
if( AddHotkey("Ctrl+]","GotoCursorFuncEnd")!=IDCHK_OK )
Message("%sAddHotkey Ctrl+] failed!(goto func end)%s\n",flagline,flagline);
else
Message("%sAddHotkey Ctrl+] succeed!(goto func end)%s\n",flagline,flagline);
if( AddHotkey("Shift+Alt+L","ListLeafFuns")!=IDCHK_OK )
Message("%sAddHotkey Shift+Alt+L(list all unrenamed leaf funcs) failed!%s\n",flagline,flagline);
else
Message("%sAddHotkey Shift+Alt+L(list all unrenamed leaf funcs) succeed!%s\n",flagline,flagline);
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
// uncomment this line to remove full paths in the debugger process options:
// SetCharPrm(INF_LFLAGS, LFLG_DBG_NOPATH|GetCharPrm(INF_LFLAGS));
}
//-----------------------------------------------------------------------
// Get name of the current processor
static get_processor_name(void)
{
auto i,procname,chr;
procname = "";
for ( i=0; i < 8; i++ )
{
chr = GetCharPrm(INF_PROCNAME+i);
if ( chr == 0 ) break;
procname = procname + chr;
}
return procname;
}
//-----------------------------------------------------------------------
// Get signed extended 16-bit value
static SWord(ea)
{
auto v;
v=Word(ea);
if ( v & 0x8000 ) v = v | 0xFFFF0000;
return v;
}