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/*
Copyright (C) 2000, 2002, 2003 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/>.
*/
#include "config.h"
#include <errno.h>
#include <sys/acl.h>
#include <acl/libacl.h>
#include <errno.h>
#include "libobj.h"
#ifndef ENOATTR
# define ENOATTR ENODATA
#endif
#ifndef ENODATA
# define ENODATA ENOATTR
#endif
typedef unsigned int permset_t;
#define ACL_PERM_NONE (0x0000)
/* object types */
struct acl_permset_obj_tag;
typedef struct acl_permset_obj_tag acl_permset_obj;
struct qualifier_obj_tag;
typedef struct qualifier_obj_tag qualifier_obj;
struct acl_entry_obj_tag;
typedef struct acl_entry_obj_tag acl_entry_obj;
struct acl_obj_tag;
typedef struct acl_obj_tag acl_obj;
/* permset_t object */
struct __acl_permset_ext {
permset_t s_perm;
};
struct acl_permset_obj_tag {
obj_prefix o_prefix;
struct __acl_permset_ext i;
};
#define sperm i.s_perm
#define oprefix i.o_prefix
#define permset_obj_equal(s1, s2) \
((s1).sperm == (s2).sperm)
/* qualifier object */
struct __qualifier_ext {
id_t q_id;
};
struct qualifier_obj_tag {
obj_prefix o_prefix;
struct __qualifier_ext i;
};
#define qid i.q_id
#define qualifier_obj_id(q) \
((q).qid)
/* acl_entry object */
struct __acl_entry {
acl_tag_t e_tag;
qualifier_obj e_id;
acl_permset_obj e_perm;
};
struct __acl_entry_ext {
acl_entry_obj *e_prev, *e_next;
acl_obj *e_container;
struct __acl_entry e_entry;
};
struct acl_entry_obj_tag {
obj_prefix o_prefix;
struct __acl_entry_ext i;
};
#define econtainer i.e_container
#define eprev i.e_prev
#define enext i.e_next
#define eentry i.e_entry
#define etag i.e_entry.e_tag
#define eperm i.e_entry.e_perm
#define eid i.e_entry.e_id
#define init_acl_entry_obj(entry) do { \
(entry).etag = ACL_UNDEFINED_TAG; \
new_obj_p_here(acl_permset, &(entry).eperm); \
(entry).eperm.sperm = ACL_PERM_NONE; \
new_obj_p_here(qualifier, &(entry).eid); \
(entry).eid.qid = ACL_UNDEFINED_ID; \
} while(0)
/* acl object */
struct __acl_ext {
acl_entry_obj *a_prev, *a_next;
acl_entry_obj *a_curr;
acl_entry_obj *a_prealloc, *a_prealloc_end;
size_t a_used;
};
struct acl_obj_tag {
obj_prefix o_prefix;
struct __acl_ext i;
};
#define aprev i.a_prev
#define anext i.a_next
#define acurr i.a_curr
#define aused i.a_used
#define aprealloc i.a_prealloc
#define aprealloc_end i.a_prealloc_end
/* external ACL representation */
struct __acl {
size_t x_size;
struct __acl_entry x_entries[0];
};
extern int __acl_reorder_entry_obj_p(acl_entry_obj *acl_entry_obj_p) hidden;
extern int __acl_reorder_obj_p(acl_obj *acl_obj_p) hidden;
extern acl_obj *__acl_init_obj(int count) hidden;
extern acl_entry_obj *__acl_create_entry_obj(acl_obj *acl_obj_p) hidden;
extern void __acl_free_acl_obj(acl_obj *acl_obj_p) hidden;
extern char *__acl_to_any_text(acl_t acl, ssize_t *len_p,
const char *prefix, char separator,
const char *suffix, int options) hidden;
extern int __apply_mask_to_mode(mode_t *mode, acl_t acl) hidden;
#define FOREACH_ACL_ENTRY(entry_obj_p, acl_obj_p) \
for( (entry_obj_p) = (acl_obj_p)->anext; \
(entry_obj_p) != (acl_entry_obj *)(acl_obj_p); \
(entry_obj_p) = (entry_obj_p)->enext )
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