fs_crypto_domain_key_change()
Change the key needed to unlock the specified domain
Synopsis:
#include <fs_crypto_api.h>
#include <sys/fs_crypto.h>
int fs_crypto_domain_key_change( const char *path,
int domain,
int length,
const uint8_t org_key[],
const uint8_t new_key[],
int *preply );
Arguments:
- path
- The path to the filesystem's mountpoint.
- domain
- The number of the domain that you want to change the key for.
- length
- The number of bytes available in the key arrays.
The keys must both be the same size.
- org_key
- The binary representation of the original key.
- new_key
- The binary representation of the new key.
- 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_domain_key_change() function changes the key needed to unlock
the specified domain.
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 change the key for a domain.
This function sets the variable pointed to by preply to one of the following values:
- FS_CRYPTO_REPLY_BAD_KEY
- One of the keys was invalid.
- FS_CRYPTO_REPLY_COMPLETE
- The key was successfully changed.
- FS_CRYPTO_REPLY_ERRNO
- See the error code for more information.
- FS_CRYPTO_REPLY_INVALID
- The command wasn't completed successfully.
- FS_CRYPTO_REPLY_UNKNOWN_DOMAIN
- There's no domain with the given number.
Returns:
- EOK
- Success.
- EINVAL
- Invalid arguments.
- ENOMEM
- Insufficient free memory.
This function can also return any of the errors indicated by
devctl()
or
open().
Classification:
QNX Neutrino
Safety: |
|
Cancellation point |
Yes |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |