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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | LINKING | SEE ALSO | COLOPHON |
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KEYCTL_..._KEYRING(3) Linux Key Management Calls KEYCTL_..._KEYRING(3)
keyctl_set_reqkey_keyring - set the implicit destination keyring
#include <keyutils.h>
long keyctl_set_reqkey_keyring(int reqkey_defl);
keyctl_set_reqkey_keyring() sets the default destination for
implicit key requests for the current thread and returns the old
setting.
After this operation has been issued, keys acquired by implicit
key requests, such as might be performed by open() on an AFS or
NFS filesystem, will be linked by default to the specified
keyring by this function.
The valid values of reqkey_defl are:
KEY_REQKEY_DEFL_NO_CHANGE
This makes no change to the current setting.
KEY_REQKEY_DEFL_THREAD_KEYRING
This makes the thread-specific keyring the default
destination.
KEY_REQKEY_DEFL_PROCESS_KEYRING
This makes the process-specific keyring the default
destination.
KEY_REQKEY_DEFL_SESSION_KEYRING
This makes the session keyring the default destination.
KEY_REQKEY_DEFL_USER_KEYRING
This makes the UID-specific keyring the default
destination.
KEY_REQKEY_DEFL_USER_SESSION_KEYRING
This makes the UID-specific session keyring the default
destination.
KEY_REQKEY_DEFL_DEFAULT
This selects the default behaviour which is to use the
thread-specific keyring if there is one, otherwise the
process-specific keyring if there is one, otherwise the
session keyring if there is one, otherwise the UID-
specific session keyring.
This setting is inherited across fork() and exec().
On success keyctl_set_reqkey_keyring() returns the serial number
of the keyring which was the previous default for the current
thread. On error, the value -1 will be returned and errno will
have been set to an appropriate error.
EINVAL The value of reqkey_defl is invalid.
This is a library function that can be found in libkeyutils.
When linking, -lkeyutils should be specified to the linker.
keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3),
keyutils(7), keyrings(7), request-key(8)
This page is part of the keyutils (key management utilities)
project. Information about the project can be found at [unknown
-- if you know, please contact man-pages@man7.org] If you have a
bug report for this manual page, send it to
keyrings@linux-nfs.org. This page was obtained from the
project's upstream Git repository
⟨http://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git⟩
on 2023-12-22. (At that time, the date of the most recent commit
that was found in the repository was 2023-03-20.) If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
Linux 4 May 2006 KEYCTL_..._KEYRING(3)
Pages that refer to this page: keyctl(2), keyctl(3)
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HTML rendering created 2023-12-22 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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