Android中部署自己的su
本人博客原文
首先把你的自己的su的放到Android应用程序project的assets文件夹，为了和系统的su区分，我自己的su文件叫做sur。
另外我这里没有考虑x86架构的cpu的手机。
废话不多说，直接上代码吧！
Util.java文件
package
cdut
.
robin
.
root
.
utils
;
import
java
.
io
.
DataOutputStream
;
import
java
.
io
.
File
;
import
java
.
io
.
FileOutputStream
;
import
java
.
io
.
IOException
;
import
java
.
io
.
InputStream
;
import
ledroid
.
nac
.
NacShellCommand
;
import
android
.
content
.
Context
;
import
android
.
util
.
Log
;
public
class
Util
{
private
static
String
getDeployMySuShellScript
(
String
localSuPath
)
{
StringBuffer
strBuffer
=
new
StringBuffer
();
strBuffer
.
append
(
"mount -o remount,rw "
+
MountPoint
.
getDeviceName
(
"/system"
)
+
" /system"
);
strBuffer
.
append
(
"\n"
);
strBuffer
.
append
(
"mount -o remount,rw /system /system"
);
strBuffer
.
append
(
"\n"
);
strBuffer
.
append
(
"cat "
).
append
(
localSuPath
).
append
(
">"
+
kSysSuPath
);
strBuffer
.
append
(
"\n"
);
strBuffer
.
append
(
"chown 0:0 "
+
kSysSuPath
);
strBuffer
.
append
(
"\n"
);
strBuffer
.
append
(
"chmod 6777 "
+
kSysSuPath
);
strBuffer
.
append
(
"\n"
);
strBuffer
.
append
(
"mount -o remount,ro "
+
MountPoint
.
getDeviceName
(
"/system"
)
+
" /system"
);
strBuffer
.
append
(
"\n"
);
strBuffer
.
append
(
"mount -o remount,ro /system /system"
);
strBuffer
.
append
(
"\n"
);
return
strBuffer
.
toString
();
}
final
static
String
kSysSuPath
=
"/system/xbin/sur"
;
private
static
boolean
isMySuExists
()
{
return
new
File
(
kSysSuPath
).
exists
();
}
private
static
boolean
writeMySu
(
Context
context
)
{
Process
processShell
=
null
;
DataOutputStream
osShell
=
null
;
String
mySuTempPath
=
context
.
getFilesDir
().
getPath
()
+
"/sur"
;
File
file
=
new
File
(
mySuTempPath
);
if
(
file
.
exists
())
{
file
.
delete
();
}
InputStream
open
=
null
;
FileOutputStream
out
=
null
;
try
{
open
=
context
.
getResources
().
getAssets
().
open
(
"sur"
);
out
=
context
.
openFileOutput
(
"sur"
,
Context
.
MODE_WORLD_WRITEABLE
);
byte
buffer
[]
=
new
byte
[
4
*
1024
];
int
len
=
0
;
while
((
len
=
open
.
read
(
buffer
))
!=
-
1
)
{
out
.
write
(
buffer
,
0
,
len
);
}
out
.
flush
();
}
catch
(
IOException
e
)
{
LogHelper
.
e
(
"TAG"
,
"errMessage"
+
e
.
getMessage
());
}
finally
{
if
(
out
!=
null
)
{
try
{
out
.
close
();
if
(
open
!=
null
)
{
open
.
close
();
}
}
catch
(
Exception
e
)
{
LogHelper
.
e
(
"TAG"
,
"errMessage"
+
e
.
getMessage
());
}
}
}
Runtime
runTime
=
Runtime
.
getRuntime
();
try
{
processShell
=
runTime
.
exec
(
"su"
);
osShell
=
new
DataOutputStream
(
processShell
.
getOutputStream
());
String
str
=
getDeployMySuShellScript
(
mySuTempPath
);
osShell
.
writeBytes
(
str
);
osShell
.
writeBytes
(
"exit\n"
);
osShell
.
flush
();
processShell
.
waitFor
();
}
catch
(
IOException
e
)
{
e
.
printStackTrace
();
}
catch
(
InterruptedException
e
)
{
e
.
printStackTrace
();
}
finally
{
if
(
processShell
!=
null
)
{
try
{
processShell
.
destroy
();
}
catch
(
Exception
e
)
{
// e.printStackTrace();
}
processShell = null;
}
if (osShell != null) {
try {
osShell.close();
osShell = null;
} catch (IOException e1) {
// e1.printStackTrace();
}
}
}
return new File(kSysSuPath).exists();
}
public
static
boolean
doSthBySu
(
Context
context
)
{
if
(!
isMySuExists
())
{
boolean
res
=
writeMySu
(
context
);
if
(
res
)
{
Log
.
i
(
"robin"
,
"deploy My Su success!"
);
}
else
{
Log
.
i
(
"robin"
,
"deploy My Su fail!"
);
}
}
else
{
Log
.
i
(
"robin"
,
"My su exsit!"
);
}
Process
processShell
=
null
;
DataOutputStream
osShell
=
null
;
//do something here by su
try {
Runtime runTime = Runtime.getRuntime();
processShell = runTime.exec("sur");
osShell = new DataOutputStream(processShell.getOutputStream());
String str = getBussinessShellScript();
osShell.writeBytes(str);
osShell.writeBytes("exit\n");
osShell.flush();
} catch (Exception e) {
e.printStackTrace();
return false;
} finally {
if (processShell != null) {
try {
processShell.destroy();
} catch (Exception e) {
e.printStackTrace();
}
processShell = null;
}
if (osShell != null) {
try {
osShell.close();
osShell = null;
} catch (IOException e1) {
// e1.printStackTrace();
}
}
}
return true;
}
public
static
String
getBussinessShellScript
()
{
return
"echo hello"
;
}
}
MountPoint.java文件
package
cdut
.
robin
.
root
.
utils
;
import
java
.
io
.
BufferedReader
;
import
java
.
io
.
File
;
import
java
.
io
.
FileInputStream
;
import
java
.
io
.
IOException
;
import
java
.
io
.
InputStreamReader
;
import
java
.
util
.
ArrayList
;
import
java
.
util
.
HashMap
;
import
java
.
util
.
List
;
public
final
class
MountPoint
{
private
static
HashMap
<
String
,
String
>
MOUNT_POINT_CACH
=
new
HashMap
(
10
);
private
static
HashMap
<
String
,
List
<
String
>>
DEVICE_CACH
=
new
HashMap
(
10
);
public
static
boolean
isMountPoint
(
String
mountPoint
)
{
return
getDeviceName
(
mountPoint
)
!=
null
;
}
public
static
String
getDeviceName
(
String
mountPoint
)
{
if
(
mountPoint
==
null
)
{
return
null
;
}
String
deviceName
=
null
;
if
(
MOUNT_POINT_CACH
.
containsKey
(
mountPoint
))
{
deviceName
=
(
String
)
MOUNT_POINT_CACH
.
get
(
mountPoint
);
}
return
deviceName
;
}
public
static
boolean
hasMultiMountPoint
(
String
deviceName
)
{
List
list
=
getMountPoints
(
deviceName
);
return
(
list
!=
null
)
&&
(
list
.
size
()
>
1
);
}
public
static
List
<
String
>
getMountPoints
(
String
deviceName
)
{
return
(
List
)
DEVICE_CACH
.
get
(
deviceName
);
}
static
{
BufferedReader
mountPointReader
=
null
;
try
{
mountPointReader
=
new
BufferedReader
(
new
InputStreamReader
(
new
FileInputStream
(
new
File
(
"/proc/mounts"
))));
String
buffer
=
null
;
while
((
buffer
=
mountPointReader
.
readLine
())
!=
null
)
{
MOUNT_POINT_CACH
.
put
(
buffer
.
split
(
" "
)[
1
],
buffer
.
split
(
" "
)[
0
]);
List
list
=
(
List
)
DEVICE_CACH
.
get
(
buffer
.
split
(
" "
)[
0
]);
if
(
list
==
null
)
{
list
=
new
ArrayList
(
1
);
}
list
.
add
(
buffer
.
split
(
" "
)[
1
]);
DEVICE_CACH
.
put
(
buffer
.
split
(
" "
)[
0
],
list
);
}
}
catch
(
IOException
e
)
{
}
finally
{
try
{
if
(
mountPointReader
!=
null
)
mountPointReader
.
close
();
}
catch
(
IOException
e
)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
结束！