mirror of
https://github.com/Fledge68/WiiFlow_Lite.git
synced 2024-12-05 01:24:19 +01:00
200 lines
6.6 KiB
C
200 lines
6.6 KiB
C
/*
|
|
*
|
|
* Copyright (c) 2007-2008 Jean-Pierre Andre
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program (in the main directory of the NTFS-3G
|
|
* distribution in the file COPYING); if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef ACLS_H
|
|
#define ACLS_H
|
|
|
|
/*
|
|
* JPA configuration modes for security.c / acls.c
|
|
* should be moved to some config file
|
|
*/
|
|
|
|
#define BUFSZ 1024 /* buffer size to read mapping file */
|
|
#define MAPPINGFILE ".NTFS-3G/UserMapping" /* default mapping file */
|
|
#define LINESZ 120 /* maximum useful size of a mapping line */
|
|
#define CACHE_PERMISSIONS_BITS 6 /* log2 of unitary allocation of permissions */
|
|
#define CACHE_PERMISSIONS_SIZE 262144 /* max cacheable permissions */
|
|
|
|
/*
|
|
* JPA The following must be in some library...
|
|
* but did not found out where
|
|
*/
|
|
|
|
#define endian_rev16(x) (((x >> 8) & 255) | ((x & 255) << 8))
|
|
#define endian_rev32(x) (((x >> 24) & 255) | ((x >> 8) & 0xff00) \
|
|
| ((x & 0xff00) << 8) | ((x & 255) << 24))
|
|
|
|
#define cpu_to_be16(x) endian_rev16(cpu_to_le16(x))
|
|
#define cpu_to_be32(x) endian_rev32(cpu_to_le32(x))
|
|
|
|
/*
|
|
* Macro definitions needed to share code with secaudit
|
|
*/
|
|
|
|
#define NTFS_FIND_USID(map,uid,buf) ntfs_find_usid(map,uid,buf)
|
|
#define NTFS_FIND_GSID(map,gid,buf) ntfs_find_gsid(map,gid,buf)
|
|
#define NTFS_FIND_USER(map,usid) ntfs_find_user(map,usid)
|
|
#define NTFS_FIND_GROUP(map,gsid) ntfs_find_group(map,gsid)
|
|
|
|
|
|
/*
|
|
* Matching of ntfs permissions to Linux permissions
|
|
* these constants are adapted to endianness
|
|
* when setting, set them all
|
|
* when checking, check one is present
|
|
*/
|
|
|
|
/* flags which are set to mean exec, write or read */
|
|
|
|
#define FILE_READ (FILE_READ_DATA)
|
|
#define FILE_WRITE (FILE_WRITE_DATA | FILE_APPEND_DATA \
|
|
| READ_CONTROL | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA)
|
|
#define FILE_EXEC (FILE_EXECUTE)
|
|
#define DIR_READ FILE_LIST_DIRECTORY
|
|
#define DIR_WRITE (FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY | FILE_DELETE_CHILD \
|
|
| READ_CONTROL | FILE_WRITE_ATTRIBUTES | FILE_WRITE_EA)
|
|
#define DIR_EXEC (FILE_TRAVERSE)
|
|
|
|
/* flags tested for meaning exec, write or read */
|
|
/* tests for write allow for interpretation of a sticky bit */
|
|
|
|
#define FILE_GREAD (FILE_READ_DATA | GENERIC_READ)
|
|
#define FILE_GWRITE (FILE_WRITE_DATA | FILE_APPEND_DATA | GENERIC_WRITE)
|
|
#define FILE_GEXEC (FILE_EXECUTE | GENERIC_EXECUTE)
|
|
#define DIR_GREAD (FILE_LIST_DIRECTORY | GENERIC_READ)
|
|
#define DIR_GWRITE (FILE_ADD_FILE | FILE_ADD_SUBDIRECTORY | GENERIC_WRITE)
|
|
#define DIR_GEXEC (FILE_TRAVERSE | GENERIC_EXECUTE)
|
|
|
|
/* standard owner (and administrator) rights */
|
|
|
|
#define OWNER_RIGHTS (DELETE | READ_CONTROL | WRITE_DAC | WRITE_OWNER \
|
|
| SYNCHRONIZE \
|
|
| FILE_READ_ATTRIBUTES | FILE_WRITE_ATTRIBUTES \
|
|
| FILE_READ_EA | FILE_WRITE_EA)
|
|
|
|
/* standard world rights */
|
|
|
|
#define WORLD_RIGHTS (READ_CONTROL | FILE_READ_ATTRIBUTES | FILE_READ_EA \
|
|
| SYNCHRONIZE)
|
|
|
|
/* inheritance flags for files and directories */
|
|
|
|
#define FILE_INHERITANCE NO_PROPAGATE_INHERIT_ACE
|
|
#define DIR_INHERITANCE (OBJECT_INHERIT_ACE | CONTAINER_INHERIT_ACE)
|
|
|
|
/*
|
|
* To identify NTFS ACL meaning Posix ACL granted to root
|
|
* we use rights always granted to anybody, so they have no impact
|
|
* either on Windows or on Linux.
|
|
*/
|
|
|
|
#define ROOT_OWNER_UNMARK SYNCHRONIZE /* ACL granted to root as owner */
|
|
#define ROOT_GROUP_UNMARK FILE_READ_EA /* ACL granted to root as group */
|
|
|
|
/*
|
|
* A type large enough to hold any SID
|
|
*/
|
|
|
|
typedef char BIGSID[40];
|
|
|
|
/*
|
|
* Struct to hold the input mapping file
|
|
* (private to this module)
|
|
*/
|
|
|
|
struct MAPLIST {
|
|
struct MAPLIST *next;
|
|
char *uidstr; /* uid text from the same record */
|
|
char *gidstr; /* gid text from the same record */
|
|
char *sidstr; /* sid text from the same record */
|
|
char maptext[LINESZ + 1];
|
|
};
|
|
|
|
typedef int (*FILEREADER)(void *fileid, char *buf, size_t size, off_t pos);
|
|
|
|
/*
|
|
* Constants defined in acls.c
|
|
*/
|
|
|
|
extern const SID *adminsid;
|
|
extern const SID *worldsid;
|
|
|
|
/*
|
|
* Functions defined in acls.c
|
|
*/
|
|
|
|
BOOL ntfs_valid_descr(const char *securattr, unsigned int attrsz);
|
|
BOOL ntfs_valid_pattern(const SID *sid);
|
|
BOOL ntfs_valid_sid(const SID *sid);
|
|
BOOL ntfs_same_sid(const SID *first, const SID *second);
|
|
|
|
BOOL ntfs_is_user_sid(const SID *usid);
|
|
|
|
|
|
int ntfs_sid_size(const SID * sid);
|
|
unsigned int ntfs_attr_size(const char *attr);
|
|
|
|
const SID *ntfs_find_usid(const struct MAPPING *usermapping,
|
|
uid_t uid, SID *pdefsid);
|
|
const SID *ntfs_find_gsid(const struct MAPPING *groupmapping,
|
|
gid_t gid, SID *pdefsid);
|
|
uid_t ntfs_find_user(const struct MAPPING *usermapping, const SID *usid);
|
|
gid_t ntfs_find_group(const struct MAPPING *groupmapping, const SID * gsid);
|
|
const SID *ntfs_acl_owner(const char *secattr);
|
|
|
|
#if POSIXACLS
|
|
|
|
BOOL ntfs_valid_posix(const struct POSIX_SECURITY *pxdesc);
|
|
void ntfs_sort_posix(struct POSIX_SECURITY *pxdesc);
|
|
int ntfs_merge_mode_posix(struct POSIX_SECURITY *pxdesc, mode_t mode);
|
|
struct POSIX_SECURITY *ntfs_build_inherited_posix(
|
|
const struct POSIX_SECURITY *pxdesc, mode_t mode,
|
|
mode_t umask, BOOL isdir);
|
|
struct POSIX_SECURITY *ntfs_replace_acl(const struct POSIX_SECURITY *oldpxdesc,
|
|
const struct POSIX_ACL *newacl, int count, BOOL deflt);
|
|
struct POSIX_SECURITY *ntfs_build_permissions_posix(
|
|
struct MAPPING* const mapping[],
|
|
const char *securattr,
|
|
const SID *usid, const SID *gsid, BOOL isdir);
|
|
struct POSIX_SECURITY *ntfs_merge_descr_posix(const struct POSIX_SECURITY *first,
|
|
const struct POSIX_SECURITY *second);
|
|
char *ntfs_build_descr_posix(struct MAPPING* const mapping[],
|
|
struct POSIX_SECURITY *pxdesc,
|
|
int isdir, const SID *usid, const SID *gsid);
|
|
|
|
#endif /* POSIXACLS */
|
|
|
|
int ntfs_inherit_acl(const ACL *oldacl, ACL *newacl,
|
|
const SID *usid, const SID *gsid, BOOL fordir);
|
|
int ntfs_build_permissions(const char *securattr,
|
|
const SID *usid, const SID *gsid, BOOL isdir);
|
|
char *ntfs_build_descr(mode_t mode,
|
|
int isdir, const SID * usid, const SID * gsid);
|
|
struct MAPLIST *ntfs_read_mapping(FILEREADER reader, void *fileid);
|
|
struct MAPPING *ntfs_do_user_mapping(struct MAPLIST *firstitem);
|
|
struct MAPPING *ntfs_do_group_mapping(struct MAPLIST *firstitem);
|
|
void ntfs_free_mapping(struct MAPPING *mapping[]);
|
|
|
|
#endif /* ACLS_H */
|
|
|