Styjun

Is it right to use the ideas of non-winning designers in a design contest?

What is the extent of the commands a Cambion can issue through Fiendish Charm?

When does order matter in probability?

How many attacks exactly do I get combining Dual Wielder feat with Two-Weapon Fighting style?

How can I hint that my character isn't real?

Why does 8 bit truecolor use only 2 bits for blue?

Where on Earth is it easiest to survive in the wilderness?

Why is Sojdlg123aljg a common password?

How do you say "to hell with everything" in French?

What quests do you need to stop at before you make an enemy of a faction for each faction?

Should I tip on the Amtrak train?

Can you pop microwave popcorn on a stove?

Relationship between speed and cadence?

At what point does a land become controlled?

Short story: Interstellar inspector senses "off" nature of planet hiding aggressive culture

Constant integers and constant evaluation

Can taking my 1-week-old on a 6-7 hours journey in the car lead to medical complications?

Is every sentence we write or utter either true or false?

Can the Spell Alter Self allow a Kenku to Speak Normally?

Professor refuses to write a recommendation letter to students who haven't written a research paper with him

Template default argument loses its reference type

I won a car in a poker game. How is that taxed in Canada?

Is there some sort of French saying for "a person's signature move"?

Word for something that used to be popular but not anymore

Access ro.serialno from native in Android 8?

Is there a way to run Python on Android?How to save an Android Activity state using save instance state?Close/hide the Android Soft KeyboardWhy is the Android emulator so slow? How can we speed up the Android emulator?Stop EditText from gaining focus at Activity startupIs there a unique Android device ID?What is 'Context' on Android?Can't start Eclipse - Java was started but returned exit code=13Proper use cases for Android UserManager.isUserAGoat()?Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamarin C# and Java?

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

5

2

I need some help. I have an app that is mostly written in native C code. I use the __system_property_get(const char * name, char * value) method to read the serial nr. of the device at various points in my native code. With Android 8 I always get a "Access denied" message now.
libc: Access denied finding property "ro.serialno"

Is there a way for me to still be able to read the serial nr. in Android 8? I tried switching to targetSDKversion < 26 but it still gives me a "Access denied" message. I do get the correct values if I use Java with Build.SERIAL (regardless of SDK version) and Build.getSerial() in SDK version 26 if I grant the READ_PHONE_STATE permission. But I cannot read these values in Java and pass them to the native code without a huge rewrite of the native code.

Any help?

android c permissions native

share|improve this question

edited Oct 19 '17 at 13:46

Delimitry

2,72544 gold badges2121 silver badges3636 bronze badges

asked Oct 19 '17 at 8:03

carlaharriscarlaharris

2611 silver badge33 bronze badges

add a comment | 

5

2

I need some help. I have an app that is mostly written in native C code. I use the __system_property_get(const char * name, char * value) method to read the serial nr. of the device at various points in my native code. With Android 8 I always get a "Access denied" message now.
libc: Access denied finding property "ro.serialno"

Is there a way for me to still be able to read the serial nr. in Android 8? I tried switching to targetSDKversion < 26 but it still gives me a "Access denied" message. I do get the correct values if I use Java with Build.SERIAL (regardless of SDK version) and Build.getSerial() in SDK version 26 if I grant the READ_PHONE_STATE permission. But I cannot read these values in Java and pass them to the native code without a huge rewrite of the native code.

Any help?

android c permissions native

share|improve this question

edited Oct 19 '17 at 13:46

Delimitry

2,72544 gold badges2121 silver badges3636 bronze badges

asked Oct 19 '17 at 8:03

carlaharriscarlaharris

2611 silver badge33 bronze badges

add a comment | 

I need some help. I have an app that is mostly written in native C code. I use the __system_property_get(const char * name, char * value) method to read the serial nr. of the device at various points in my native code. With Android 8 I always get a "Access denied" message now.
libc: Access denied finding property "ro.serialno"

Is there a way for me to still be able to read the serial nr. in Android 8? I tried switching to targetSDKversion < 26 but it still gives me a "Access denied" message. I do get the correct values if I use Java with Build.SERIAL (regardless of SDK version) and Build.getSerial() in SDK version 26 if I grant the READ_PHONE_STATE permission. But I cannot read these values in Java and pass them to the native code without a huge rewrite of the native code.

Any help?

android c permissions native

share|improve this question

edited Oct 19 '17 at 13:46

Delimitry

2,72544 gold badges2121 silver badges3636 bronze badges

asked Oct 19 '17 at 8:03

carlaharriscarlaharris

2611 silver badge33 bronze badges

android c permissions native

android c permissions native

share|improve this question

edited Oct 19 '17 at 13:46

Delimitry

2,72544 gold badges2121 silver badges3636 bronze badges

asked Oct 19 '17 at 8:03

carlaharriscarlaharris

2611 silver badge33 bronze badges

share|improve this question

edited Oct 19 '17 at 13:46

Delimitry

2,72544 gold badges2121 silver badges3636 bronze badges

asked Oct 19 '17 at 8:03

carlaharriscarlaharris

2611 silver badge33 bronze badges

edited Oct 19 '17 at 13:46

Delimitry

2,72544 gold badges2121 silver badges3636 bronze badges

edited Oct 19 '17 at 13:46

Delimitry

2,72544 gold badges2121 silver badges3636 bronze badges

asked Oct 19 '17 at 8:03

carlaharriscarlaharris

2611 silver badge33 bronze badges

asked Oct 19 '17 at 8:03

carlaharriscarlaharris

2611 silver badge33 bronze badges

2 Answers
2

active

oldest

votes

4

I met this problem too. Finally I find the root cause of the problem. In Android O, SELinux sets a lot of limitations in system property. In this case, There is a neverallow to limit read serial number except some domain in whitelist.

For more specific information, you can read code in system/sepolicy/public/domain.te:

neverallow 
 domain
 -adbd
 -dumpstate
 -hal_drm
 -init
 -mediadrmserver
 -recovery
 -shell
 -system_server
 serialno_prop:file r_file_perms;

share|improve this answer

edited Dec 8 '17 at 2:54

Stephen Rauch

33.1k1515 gold badges4444 silver badges6969 bronze badges

answered Dec 8 '17 at 2:35

simowcesimowce

7988 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you very much!
  
  – carlaharris
  Dec 15 '17 at 6:56
  

  
  
  
  

add a comment | 

1

If you have the hand on AOSP:

1. Put android:sharedUserId="android.uid.system" to AdnroidMainfest


2. Run app like system_app.


3. Change in Android.mk. LOCAL_MODULE_PATH := $(TARGET_OUT)/app.

Or you can duplicate the property.

share|improve this answer

edited Mar 28 at 6:15

Community♦

111 silver badge

answered Mar 21 at 4:07

Thinh DinhThinh Dinh

922 bronze badges

add a comment | 

Your Answer

StackExchange.ifUsing("editor", function ()
StackExchange.using("externalEditor", function ()
StackExchange.using("snippets", function ()
StackExchange.snippets.init();
);
);
, "code-snippets");

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "1"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/4.0/"u003ecc by-sa 4.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f46825230%2faccess-ro-serialno-from-native-in-android-8%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

4

I met this problem too. Finally I find the root cause of the problem. In Android O, SELinux sets a lot of limitations in system property. In this case, There is a neverallow to limit read serial number except some domain in whitelist.

For more specific information, you can read code in system/sepolicy/public/domain.te:

neverallow 
 domain
 -adbd
 -dumpstate
 -hal_drm
 -init
 -mediadrmserver
 -recovery
 -shell
 -system_server
 serialno_prop:file r_file_perms;

share|improve this answer

edited Dec 8 '17 at 2:54

Stephen Rauch

33.1k1515 gold badges4444 silver badges6969 bronze badges

answered Dec 8 '17 at 2:35

simowcesimowce

7988 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you very much!
  
  – carlaharris
  Dec 15 '17 at 6:56
  

  
  
  
  

add a comment | 

4

I met this problem too. Finally I find the root cause of the problem. In Android O, SELinux sets a lot of limitations in system property. In this case, There is a neverallow to limit read serial number except some domain in whitelist.

For more specific information, you can read code in system/sepolicy/public/domain.te:

neverallow 
 domain
 -adbd
 -dumpstate
 -hal_drm
 -init
 -mediadrmserver
 -recovery
 -shell
 -system_server
 serialno_prop:file r_file_perms;

share|improve this answer

edited Dec 8 '17 at 2:54

Stephen Rauch

33.1k1515 gold badges4444 silver badges6969 bronze badges

answered Dec 8 '17 at 2:35

simowcesimowce

7988 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you very much!
  
  – carlaharris
  Dec 15 '17 at 6:56
  

  
  
  
  

add a comment | 

I met this problem too. Finally I find the root cause of the problem. In Android O, SELinux sets a lot of limitations in system property. In this case, There is a neverallow to limit read serial number except some domain in whitelist.

For more specific information, you can read code in system/sepolicy/public/domain.te:

neverallow 
 domain
 -adbd
 -dumpstate
 -hal_drm
 -init
 -mediadrmserver
 -recovery
 -shell
 -system_server
 serialno_prop:file r_file_perms;

share|improve this answer

edited Dec 8 '17 at 2:54

Stephen Rauch

33.1k1515 gold badges4444 silver badges6969 bronze badges

answered Dec 8 '17 at 2:35

simowcesimowce

7988 bronze badges

neverallow 
 domain
 -adbd
 -dumpstate
 -hal_drm
 -init
 -mediadrmserver
 -recovery
 -shell
 -system_server
 serialno_prop:file r_file_perms;

share|improve this answer

edited Dec 8 '17 at 2:54

Stephen Rauch

33.1k1515 gold badges4444 silver badges6969 bronze badges

answered Dec 8 '17 at 2:35

simowcesimowce

7988 bronze badges

edited Dec 8 '17 at 2:54

Stephen Rauch

33.1k1515 gold badges4444 silver badges6969 bronze badges

edited Dec 8 '17 at 2:54

Stephen Rauch

33.1k1515 gold badges4444 silver badges6969 bronze badges

answered Dec 8 '17 at 2:35

simowcesimowce

7988 bronze badges

answered Dec 8 '17 at 2:35

simowcesimowce

7988 bronze badges

1

If you have the hand on AOSP:

1. Put android:sharedUserId="android.uid.system" to AdnroidMainfest


2. Run app like system_app.


3. Change in Android.mk. LOCAL_MODULE_PATH := $(TARGET_OUT)/app.

Or you can duplicate the property.

share|improve this answer

edited Mar 28 at 6:15

Community♦

111 silver badge

answered Mar 21 at 4:07

Thinh DinhThinh Dinh

922 bronze badges

add a comment | 

1

If you have the hand on AOSP:

1. Put android:sharedUserId="android.uid.system" to AdnroidMainfest


2. Run app like system_app.


3. Change in Android.mk. LOCAL_MODULE_PATH := $(TARGET_OUT)/app.

Or you can duplicate the property.

share|improve this answer

edited Mar 28 at 6:15

Community♦

111 silver badge

answered Mar 21 at 4:07

Thinh DinhThinh Dinh

922 bronze badges

add a comment | 

If you have the hand on AOSP:

1. Put android:sharedUserId="android.uid.system" to AdnroidMainfest


2. Run app like system_app.


3. Change in Android.mk. LOCAL_MODULE_PATH := $(TARGET_OUT)/app.

Or you can duplicate the property.

share|improve this answer

edited Mar 28 at 6:15

Community♦

111 silver badge

answered Mar 21 at 4:07

Thinh DinhThinh Dinh

922 bronze badges

share|improve this answer

edited Mar 28 at 6:15

Community♦

111 silver badge

answered Mar 21 at 4:07

Thinh DinhThinh Dinh

922 bronze badges

edited Mar 28 at 6:15

Community♦

111 silver badge

edited Mar 28 at 6:15

Community♦

111 silver badge

answered Mar 21 at 4:07

Thinh DinhThinh Dinh

922 bronze badges

answered Mar 21 at 4:07

Thinh DinhThinh Dinh

922 bronze badges