keyctl_set_reqkey_keyring(3) — Linux manual page


KEYCTL_..._KEYRING(3)  Linux Key Management Calls  KEYCTL_..._KEYRING(3)

NAME         top

       keyctl_set_reqkey_keyring - set the implicit destination keyring

SYNOPSIS         top

       #include <keyutils.h>

       long keyctl_set_reqkey_keyring(int reqkey_defl);

DESCRIPTION         top

       keyctl_set_reqkey_keyring() sets the default destination for
       implicit key requests for the current thread and returns the old

       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:

              This makes no change to the current setting.

              This makes the thread-specific keyring the default

              This makes the process-specific keyring the default

              This makes the session keyring the default destination.

              This makes the UID-specific keyring the default

              This makes the UID-specific session keyring the 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().

RETURN VALUE         top

       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.

ERRORS         top

       EINVAL The value of reqkey_defl is invalid.

LINKING         top

       This is a library function that can be found in libkeyutils.
       When linking, -lkeyutils should be specified to the linker.

SEE ALSO         top

       keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3),
       keyutils(7), keyrings(7), request-key(8)

COLOPHON         top

       This page is part of the keyutils (key management utilities)
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Linux                          4 May 2006          KEYCTL_..._KEYRING(3)

Pages that refer to this page: keyctl(2)keyctl(3)