Enable encryption support on a filesystem
Synopsis:
#include <fs_crypto_api.h>
#include <sys/fs_crypto.h>
int fs_crypto_enable( const char *path,
int *preply );
Arguments:
- path
- The path to the filesystem's mountpoint.
- preply
- A pointer to a location where the function can store additional success or error information.
Library:
libfscrypto
Use the -l fscrypto option to
qcc
to link against this library.
Description:
The fs_crypto_enable() function enables encryption support on a volume.
Note:
- In order to use filesystem encryption, download the Encrypted Filesystem package from the QNX Software Center.
- You must be in the group that owns the filesystem's mountpoint in order to enable encryption.
This function sets the variable pointed to by preply to one of the following values:
- FS_CRYPTO_REPLY_ALREADY
- Encryption was already enabled on the filesystem.
- FS_CRYPTO_REPLY_COMPLETE
- Encryption is now enabled on the filesystem.
- FS_CRYPTO_REPLY_INVALID
- The command wasn't completed successfully.
- FS_CRYPTO_REPLY_READONLY
- The filesystem is read-only.
Returns:
- EOK
- Success.
- EBADFSYS
- Corrupted filesystem detected.
- ENOTDIR
- The path isn't a directory.
- ENOTSUP
- The filesystem doesn't support encryption.
- EROFS
- The filesystem is mounted read-only.
This function can also return any of the errors indicated by
devctl(),
open64(),
fstat64(),
or
fstatvfs64().
Classification:
QNX Neutrino
| Safety: |
|
|---|
| Cancellation point |
Yes |
| Interrupt handler |
No |
| Signal handler |
No |
| Thread |
Yes |