8f45e8c076
adds _np to a couple of function prototypes that provided more broad/useful interfaces than POSIX.1e interfaces included. Also, move from using a heuristic to identify POSIX.1e-semantic ACLs to using different ACL types for non-POSIX.1e ACLs. This should clean up the existing fuzzy logic that determined when acl_sort() should be applied before kernel submission.
72 lines
2.3 KiB
C
72 lines
2.3 KiB
C
/*-
|
|
* Copyright (c) 1999 Robert N. M. Watson
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
/*
|
|
* acl_calc_mask(): POSIX.1e routine to recalculate the mask value
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/acl.h>
|
|
#include <sys/errno.h>
|
|
#include <string.h>
|
|
|
|
#include "acl_support.h"
|
|
|
|
/*
|
|
* POSIX.1e ACL semantics:
|
|
*
|
|
* acl_calc_mask(): calculate an ACL_MASK entry for the ACL, then either
|
|
* insert into the ACL if there is none already, or replace the existing
|
|
* one. This will act up if called on a non-POSIX.1e semantics ACL.
|
|
*/
|
|
int
|
|
acl_calc_mask(acl_t *acl_p)
|
|
{
|
|
acl_perm_t perm_union = ACL_PERM_NONE;
|
|
acl_t acl = *acl_p;
|
|
int mask_entry = -1;
|
|
int i;
|
|
|
|
/* search for ACL_MASK */
|
|
for (i = 0; i < acl->acl_cnt; i++)
|
|
if (acl->acl_entry[i].ae_tag == ACL_MASK)
|
|
mask_entry = i;
|
|
else
|
|
perm_union |= acl->acl_entry[i].ae_perm;
|
|
|
|
if (mask_entry != -1) {
|
|
/* already have a mask, replace */
|
|
acl->acl_entry[mask_entry].ae_perm = perm_union;
|
|
} else {
|
|
/* must add a new mask */
|
|
if (acl_add_entry(acl, ACL_MASK, 0, perm_union) == -1)
|
|
return (-1);
|
|
}
|
|
|
|
return (0);
|
|
}
|