---
name: "aa_find_mountpoint"
section: "2"
platform: "linux"
package: "apparmor"
version: "4.1.8-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/aa_find_mountpoint"
---

# aa\_find\_mountpoint(2)

determine if apparmor is available aa\_find\_mountpoint - find where the apparmor interface filesystem is mounted

## NAME

aa\_is\_enabled - determine if apparmor is available

aa\_find\_mountpoint - find where the apparmor interface filesystem is mounted

## SYNOPSIS

**#include \<sys/apparmor.h\>**

**int aa\_is\_enabled(void);**

**int aa\_find\_mountpoint(char \*\*mnt);**

Link with **-lapparmor** when compiling.

## DESCRIPTION

The aa\_is\_enabled function returns true (1) if apparmor is enabled. If it isn't it sets the [**errno**(3)](/errno/3.md) to reflect the reason it is not enabled and returns 0.

The aa\_find\_mountpoint function finds where the apparmor filesystem is mounted on the system, and returns a string containing the mount path.  It is the caller's responsibility to [**free**(3)](/free/3.md) the returned path.

## RETURN VALUE

**aa\_is\_enabled** On success 1 is returned. On error, 0 is returned, and [**errno**(3)](/errno/3.md) is set appropriately.

**aa\_find\_mountpoint** On success zero is returned. On error, -1 is returned, and [**errno**(3)](/errno/3.md) is set appropriately.

## ERRORS

**aa\_is\_enabled**

- **ENOSYS**

  AppArmor extensions to the system are not available.

- **ECANCELED**

  AppArmor is available on the system but has been disabled at boot.

- **EBUSY**

  AppArmor is available but only via private interfaces.

- **ENOENT**

  AppArmor is available (and maybe even enforcing policy) but the interface is not available.

- **ENOMEM**

  Insufficient memory was available.

- **EPERM**

  Did not have sufficient permissions to determine if AppArmor is enabled.

- **EACCES**

  Did not have sufficient permissions to determine if AppArmor is enabled.

- **EBUSY**

  AppArmor is enabled but does not have access to shared interfaces, and only private interfaces are available.

**aa\_find\_mountpoint**

- **ENOMEM**

  Insufficient memory was available.

- **EACCES**

  Access to the required paths was denied.

- **ENOENT**

  The apparmor filesystem mount could not be found

## BUGS

None known. If you find any, please report them at \<https://gitlab.com/apparmor/apparmor/-/issues\>.

## SEE ALSO

[**apparmor**(7)](/apparmor/7.md), [**apparmor.d**(5)](/apparmor.d/5.md), [**apparmor\_parser**(8)](/apparmor_parser/8.md), and \<https://wiki.apparmor.net\>.