NAME

       keyctl_session_to_parent - set the parent process's session keyring

SYNOPSIS

       #include <keyutils.h>

       long keyctl_session_to_parent();

DESCRIPTION

       keyctl_session_to_parent()  changes  the session keyring to which the calling process's parent subscribes
       to be the that of the calling process.

       The keyring must have link permission available to the calling process, the parent process must have  the
       same  UIDs/GIDs  as  the calling process, and the LSM must not reject the replacement.  Furthermore, this
       may not be used to affect init or a kernel thread.

       Note that the replacement will not take immediate effect upon the parent  process,  but  will  rather  be
       deferred to the next time it returns to userspace from kernel space.

RETURN VALUE

       On  success keyctl_session_to_parent() returns 0.  On error, the value -1 will be returned and errno will
       have been set to an appropriate error.

ERRORS

       ENOMEM Insufficient memory to create a key.

       EPERM  The credentials of the parent don't match those of the caller.

       EACCES The named keyring exists, but is not linkable by the calling process.

LINKING

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

SEE ALSO

       keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3), keyrings(7), keyutils(7),
       session-keyring(7), user-session-keyring(7)