jpayne@68: .\"
jpayne@68: .\" Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
jpayne@68: .\" Written by David Howells (dhowells@redhat.com)
jpayne@68: .\"
jpayne@68: .\" This program is free software; you can redistribute it and/or
jpayne@68: .\" modify it under the terms of the GNU General Public License
jpayne@68: .\" as published by the Free Software Foundation; either version
jpayne@68: .\" 2 of the License, or (at your option) any later version.
jpayne@68: .\"
jpayne@68: .TH KEYCTL_LINK 3 "4 May 2006" Linux "Linux Key Management Calls"
jpayne@68: .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
jpayne@68: .SH NAME
jpayne@68: keyctl_link, keyctl_unlink \- link/unlink a key to/from a keyring
jpayne@68: .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
jpayne@68: .SH SYNOPSIS
jpayne@68: .nf
jpayne@68: .B #include <keyutils.h>
jpayne@68: .sp
jpayne@68: .BI "long keyctl_link(key_serial_t " key ", key_serial_t " keyring ");"
jpayne@68: .sp
jpayne@68: .BI "long keyctl_unlink(key_serial_t " key ", key_serial_t " keyring ");"
jpayne@68: .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
jpayne@68: .SH DESCRIPTION
jpayne@68: .BR keyctl_link ()
jpayne@68: creates a link from
jpayne@68: .I keyring
jpayne@68: to
jpayne@68: .IR key ,
jpayne@68: displacing any link to another key of the same type and description in that
jpayne@68: keyring if one exists.
jpayne@68: .P
jpayne@68: .BR keyctl_unlink ()
jpayne@68: removes the link from
jpayne@68: .I keyring
jpayne@68: to
jpayne@68: .I key
jpayne@68: if it exists.
jpayne@68: .P
jpayne@68: The caller must have
jpayne@68: .B write
jpayne@68: permission on a keyring to be able create or remove links in it.
jpayne@68: .P
jpayne@68: The caller must have
jpayne@68: .B link
jpayne@68: permission on a key to be able to create a link to it.
jpayne@68: .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
jpayne@68: .SH RETURN VALUE
jpayne@68: On success
jpayne@68: .BR keyctl_link ()
jpayne@68: and
jpayne@68: .BR keyctl_unlink ()
jpayne@68: return
jpayne@68: .BR 0 .
jpayne@68: On error, the value
jpayne@68: .B -1
jpayne@68: will be returned and
jpayne@68: .I errno
jpayne@68: will have been set to an appropriate error.
jpayne@68: .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
jpayne@68: .SH ERRORS
jpayne@68: .TP
jpayne@68: .B ENOKEY
jpayne@68: The key or the keyring specified are invalid.
jpayne@68: .TP
jpayne@68: .B EKEYEXPIRED
jpayne@68: The key or the keyring specified have expired.
jpayne@68: .TP
jpayne@68: .B EKEYREVOKED
jpayne@68: The key or the keyring specified have been revoked.
jpayne@68: .TP
jpayne@68: .B EACCES
jpayne@68: The keyring exists, but is not
jpayne@68: .B writable
jpayne@68: by the calling process.
jpayne@68: .P
jpayne@68: For
jpayne@68: .BR keyctl_link ()
jpayne@68: only:
jpayne@68: .TP
jpayne@68: .B ENOMEM
jpayne@68: Insufficient memory to expand the keyring
jpayne@68: .TP
jpayne@68: .B EDQUOT
jpayne@68: Expanding the keyring would exceed the keyring owner's quota.
jpayne@68: .TP
jpayne@68: .B EACCES
jpayne@68: The key exists, but is not
jpayne@68: .B linkable
jpayne@68: by the calling process.
jpayne@68: .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
jpayne@68: .SH LINKING
jpayne@68: This is a library function that can be found in
jpayne@68: .IR libkeyutils .
jpayne@68: When linking,
jpayne@68: .B \-lkeyutils
jpayne@68: should be specified to the linker.
jpayne@68: .\"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
jpayne@68: .SH SEE ALSO
jpayne@68: .ad l
jpayne@68: .nh
jpayne@68: .BR keyctl (1),
jpayne@68: .BR add_key (2),
jpayne@68: .BR keyctl (2),
jpayne@68: .BR request_key (2),
jpayne@68: .BR keyctl (3),
jpayne@68: .BR keyrings (7),
jpayne@68: .BR keyutils (7)
jpayne@68: