# WP7607-1 IPC using pipes

**URL:** <https://mangoh.discourse.group/t/wp7607-1-ipc-using-pipes/5449>\
**Category:** mangOH Green\
**Created:** [October 20, 2020, 1:49pm UTC](https://mangoh.discourse.group/t/wp7607-1-ipc-using-pipes/5449 "2020-10-20T13:49:48Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![tadera](https://avatars.discourse-cdn.com/v4/letter/t/f14d63/32.png) [@tadera](https://mangoh.discourse.group/u/tadera)\
**Post date:** [November 13, 2020, 3:01pm UTC](https://mangoh.discourse.group/t/wp7607-1-ipc-using-pipes/5449/21 "2020-11-13T15:01:04Z")

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Hey @pinst,

I think I understood the SMACK permission / directory part, however, I’m still wondering how to give this permission to the /home/root/ directory.

Another thing I’m not sure about is whether both apps need to have the SMACK permission to use the shared fifo and if so how I can manage to do that.

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<div class="post-metadata">

**Author:** ![pinst](https://avatars.discourse-cdn.com/v4/letter/p/d78d45/32.png) [@pinst](https://mangoh.discourse.group/u/pinst)\
**Post date:** [November 13, 2020, 8:37pm UTC](https://mangoh.discourse.group/t/wp7607-1-ipc-using-pipes/5449/22 "2020-11-13T20:37:13Z")

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Probably something like

```auto
xattr set 'security.SMACK64' 'app.myApplicationrwx' .

```

when you are in /home/root. We don’t have our data files in /home/root, rather subdirectories, e.g.

```auto
xattr set 'security.SMACK64' 'app.myApplicationrwx' dataDir

```

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