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Current Path: /usr/src/lib/libc/posix1e

📁 ..
📄 Makefile.inc(2.82 KB)
📄 Symbol.map(1.39 KB)
📄 acl.3(9.51 KB)
📄 acl_add_flag_np.3(2.91 KB)
📄 acl_add_perm.3(4.12 KB)
📄 acl_branding.c(3.9 KB)
📄 acl_calc_mask.3(2.7 KB)
📄 acl_calc_mask.c(3.71 KB)
📄 acl_clear_flags_np.3(2.35 KB)
📄 acl_clear_perms.3(2.33 KB)
📄 acl_compat.c(2.24 KB)
📄 acl_copy.c(2.4 KB)
📄 acl_copy_entry.3(2.35 KB)
📄 acl_create_entry.3(2.83 KB)
📄 acl_delete.3(4.28 KB)
📄 acl_delete.c(2.33 KB)
📄 acl_delete_entry.3(2.73 KB)
📄 acl_delete_entry.c(4.25 KB)
📄 acl_delete_flag_np.3(2.43 KB)
📄 acl_delete_perm.3(2.42 KB)
📄 acl_dup.3(3.19 KB)
📄 acl_entry.c(3.58 KB)
📄 acl_flag.c(3.08 KB)
📄 acl_free.3(2.61 KB)
📄 acl_free.c(1.83 KB)
📄 acl_from_text.3(3.69 KB)
📄 acl_from_text.c(6.9 KB)
📄 acl_from_text_nfs4.c(6.53 KB)
📄 acl_get.3(4.81 KB)
📄 acl_get.c(5.01 KB)
📄 acl_get_brand_np.3(2.69 KB)
📄 acl_get_entry.3(3.62 KB)
📄 acl_get_entry_type_np.3(2.49 KB)
📄 acl_get_flag_np.3(2.63 KB)
📄 acl_get_flagset_np.3(2.51 KB)
📄 acl_get_perm_np.3(2.65 KB)
📄 acl_get_permset.3(2.49 KB)
📄 acl_get_qualifier.3(3.79 KB)
📄 acl_get_tag_type.3(2.53 KB)
📄 acl_id_to_name.c(2.91 KB)
📄 acl_init.3(3.31 KB)
📄 acl_init.c(2.64 KB)
📄 acl_is_trivial_np.3(2.84 KB)
📄 acl_perm.c(2.88 KB)
📄 acl_set.3(4.53 KB)
📄 acl_set.c(5.67 KB)
📄 acl_set_entry_type_np.3(2.81 KB)
📄 acl_set_flagset_np.3(2.51 KB)
📄 acl_set_permset.3(2.38 KB)
📄 acl_set_qualifier.3(2.61 KB)
📄 acl_set_tag_type.3(3.08 KB)
📄 acl_strip.c(5.17 KB)
📄 acl_strip_np.3(3.18 KB)
📄 acl_support.c(9.9 KB)
📄 acl_support.h(3.14 KB)
📄 acl_support_nfs4.c(6.48 KB)
📄 acl_to_text.3(4.64 KB)
📄 acl_to_text.c(6.73 KB)
📄 acl_to_text_nfs4.c(5.91 KB)
📄 acl_valid.3(4.96 KB)
📄 acl_valid.c(3.38 KB)
📄 extattr.3(3.34 KB)
📄 extattr.c(2.38 KB)
📄 mac.3(5.67 KB)
📄 mac.c(9.21 KB)
📄 mac.conf(507 B)
📄 mac.conf.5(3.99 KB)
📄 mac_exec.c(1.96 KB)
📄 mac_free.3(3.06 KB)
📄 mac_get.3(4.48 KB)
📄 mac_get.c(2.6 KB)
📄 mac_is_present.3(2.83 KB)
📄 mac_prepare.3(3.96 KB)
📄 mac_set.3(4.04 KB)
📄 mac_set.c(2.29 KB)
📄 mac_text.3(3.33 KB)
📄 posix1e.3(3.53 KB)

Editing: acl_branding.c

/*-
 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
 *
 * Copyright (c) 2008, 2009 Edward Tomasz Napierała <trasz@FreeBSD.org>
 *
 * 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.
 */

#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");

#include <assert.h>
#include <errno.h>
#include <sys/acl.h>

#include "acl_support.h"

/*
 * An ugly detail of the implementation - fortunately not visible
 * to the API users - is the "branding": libc needs to keep track
 * of what "brand" ACL is: NFSv4, POSIX.1e or unknown.  It happens
 * automatically - for example, during acl_get_file(3) ACL gets
 * branded according to the "type" argument; during acl_set_permset
 * ACL, if its brand is unknown it gets branded as NFSv4 if any of the
 * NFSv4 permissions that are not valid for POSIX.1e ACL are set etc.
 * Branding information is used for printing out the ACL (acl_to_text(3)),
 * veryfying acl_set_whatever arguments (checking against setting
 * bits that are valid only for NFSv4 in ACL branded as POSIX.1e) etc.
 */

static acl_t
entry2acl(acl_entry_t entry)
{
	acl_t aclp;

aclp = (acl_t)(((long)entry >> _ACL_T_ALIGNMENT_BITS) << _ACL_T_ALIGNMENT_BITS);

return (aclp);
}

/*
 * Return brand of an ACL.
 */
int
_acl_brand(const acl_t acl)
{

return (acl->ats_brand);
}

int
_entry_brand(const acl_entry_t entry)
{

return (_acl_brand(entry2acl(entry)));
}

/*
 * Return 1, iff branding ACL as "brand" is ok.
 */
int
_acl_brand_may_be(const acl_t acl, int brand)
{

if (_acl_brand(acl) == ACL_BRAND_UNKNOWN)
		return (1);

if (_acl_brand(acl) == brand)
		return (1);

return (0);
}

int
_entry_brand_may_be(const acl_entry_t entry, int brand)
{

return (_acl_brand_may_be(entry2acl(entry), brand));
}

/*
 * Brand ACL as "brand".
 */
void
_acl_brand_as(acl_t acl, int brand)
{

assert(_acl_brand_may_be(acl, brand));

acl->ats_brand = brand;
}

void
_entry_brand_as(const acl_entry_t entry, int brand)
{

_acl_brand_as(entry2acl(entry), brand);
}

int
_acl_type_not_valid_for_acl(const acl_t acl, acl_type_t type)
{

switch (_acl_brand(acl)) {
	case ACL_BRAND_NFS4:
		if (type == ACL_TYPE_NFS4)
			return (0);
		break;

case ACL_BRAND_POSIX:
		if (type == ACL_TYPE_ACCESS || type == ACL_TYPE_DEFAULT)
			return (0);
		break;

case ACL_BRAND_UNKNOWN:
		return (0);
	}

return (-1);
}

void
_acl_brand_from_type(acl_t acl, acl_type_t type)
{

switch (type) {
	case ACL_TYPE_NFS4:
		_acl_brand_as(acl, ACL_BRAND_NFS4);
		break;
	case ACL_TYPE_ACCESS:
	case ACL_TYPE_DEFAULT:
		_acl_brand_as(acl, ACL_BRAND_POSIX);
		break;
	default:
		/* XXX: What to do here? */
		break;
	}
}

int
acl_get_brand_np(acl_t acl, int *brand_p)
{

if (acl == NULL || brand_p == NULL) {
		errno = EINVAL;
		return (-1);
	}
	*brand_p = _acl_brand(acl);

return (0);
}

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Editing: acl_branding.c

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