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/*
File: acl_ea.h
(extended attribute representation of access control lists)
Copyright (C) 2002 Andreas Gruenbacher, <agruen@suse.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <https://www.gnu.org/licenses/>.
*/
#define ACL_EA_ACCESS "system.posix_acl_access"
#define ACL_EA_DEFAULT "system.posix_acl_default"
#define ACL_EA_VERSION 0x0002
typedef struct {
u_int16_t e_tag;
u_int16_t e_perm;
u_int32_t e_id;
} acl_ea_entry;
typedef struct {
u_int32_t a_version;
acl_ea_entry a_entries[0];
} acl_ea_header;
static inline size_t acl_ea_size(int count)
{
return sizeof(acl_ea_header) + count * sizeof(acl_ea_entry);
}
static inline int acl_ea_count(size_t size)
{
if (size < sizeof(acl_ea_header))
return -1;
size -= sizeof(acl_ea_header);
if (size % sizeof(acl_ea_entry))
return -1;
return size / sizeof(acl_ea_entry);
}
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