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fs_crypto_migrate_tag()
Mark a file for migration into an encryption domain

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        Control encryption migration within the filesystem
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        Mark an entire directory for migration into an encryption domain
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        Get the status of migration in the filesystem
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        Mark a file for migration into an encryption domain
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fs_crypto_migrate_tag()

QNX SDP8.0C Library ReferenceAPIDeveloper

Mark a file for migration into an encryption domain

Synopsis:

#include <fs_crypto_api.h>
#include <sys/fs_crypto.h>

int fs_crypto_migrate_tag( const char *path,
                           int domain,
                           int *preply );

Arguments:

path: The path of the file to mark for migration.
domain: The domain that the file is to migrate to. This can be 0, (FS_CRYPTO_UNASSIGNED_DOMAIN) if you don't want the item to be in any domain, and hence unencrypted.
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_migrate_tag() function marks a file for migration into an encryption domain. When you've marked all the files that you want to migrate, call fs_crypto_migrate_control() to start the background encryption.

For directories, this operation is functionally equivalent to fs_crypto_file_set_domain(). Regular files may have unencrypted data contents.

Note:

In order to use filesystem encryption, download the Encrypted Filesystem package from the QNX Software Center.
In order for you to tag files for migration, the source and destination domains must be unlocked.

This function sets the variable pointed to by preply to one of the following values:

FS_CRYPTO_REPLY_BAD_FILE: The path specifies a restricted file that can't migrate.
FS_CRYPTO_REPLY_COMPLETE: The file was successfully marked.
FS_CRYPTO_REPLY_INVALID: The command wasn't completed successfully.
FS_CRYPTO_REPLY_READONLY: The filesystem is mounted read-only.
FS_CRYPTO_REPLY_NOSUPPORT: The file isn't a regular file.

Returns:

EOK: Success.
EINVAL: Invalid arguments.
ENOTSUP: The file isn't a regular file.

This function can also return any of the errors indicated by devctl() or open().

Classification:


Safety:
Cancellation point	Yes
Signal handler	No
Thread	Yes

Page updated: August 09, 2024