249 lines
8.1 KiB
C
249 lines
8.1 KiB
C
|
/*
|
||
|
|
* CDDL HEADER START
|
||
|
|
*
|
||
|
|
* The contents of this file are subject to the terms of the
|
||
|
|
* Common Development and Distribution License (the "License").
|
||
|
|
* You may not use this file except in compliance with the License.
|
||
|
|
*
|
||
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||
|
|
* or http://www.opensolaris.org/os/licensing.
|
||
|
|
* See the License for the specific language governing permissions
|
||
|
|
* and limitations under the License.
|
||
|
|
*
|
||
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
||
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
||
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
||
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||
|
|
*
|
||
|
|
* CDDL HEADER END
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _SYS_FS_ZFS_ACL_H
|
||
|
|
#define _SYS_FS_ZFS_ACL_H
|
||
|
|
|
||
|
|
#ifdef _KERNEL
|
||
|
|
#include <sys/isa_defs.h>
|
||
|
|
#include <sys/types32.h>
|
||
|
|
#include <sys/xvattr.h>
|
||
|
|
#endif
|
||
|
|
#include <sys/acl.h>
|
||
|
|
#include <sys/dmu.h>
|
||
|
|
#include <sys/zfs_fuid.h>
|
||
|
|
#include <sys/sa.h>
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
struct znode_phys;
|
||
|
|
|
||
|
|
#define ACE_SLOT_CNT 6
|
||
|
|
#define ZFS_ACL_VERSION_INITIAL 0ULL
|
||
|
|
#define ZFS_ACL_VERSION_FUID 1ULL
|
||
|
|
#define ZFS_ACL_VERSION ZFS_ACL_VERSION_FUID
|
||
|
|
|
||
|
|
/*
|
||
|
|
* ZFS ACLs (Access Control Lists) are stored in various forms.
|
||
|
|
*
|
||
|
|
* Files created with ACL version ZFS_ACL_VERSION_INITIAL
|
||
|
|
* will all be created with fixed length ACEs of type
|
||
|
|
* zfs_oldace_t.
|
||
|
|
*
|
||
|
|
* Files with ACL version ZFS_ACL_VERSION_FUID will be created
|
||
|
|
* with various sized ACEs. The abstraction entries will utilize
|
||
|
|
* zfs_ace_hdr_t, normal user/group entries will use zfs_ace_t
|
||
|
|
* and some specialized CIFS ACEs will use zfs_object_ace_t.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*
|
||
|
|
* All ACEs have a common hdr. For
|
||
|
|
* owner@, group@, and everyone@ this is all
|
||
|
|
* thats needed.
|
||
|
|
*/
|
||
|
|
typedef struct zfs_ace_hdr {
|
||
|
|
uint16_t z_type;
|
||
|
|
uint16_t z_flags;
|
||
|
|
uint32_t z_access_mask;
|
||
|
|
} zfs_ace_hdr_t;
|
||
|
|
|
||
|
|
typedef zfs_ace_hdr_t zfs_ace_abstract_t;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Standard ACE
|
||
|
|
*/
|
||
|
|
typedef struct zfs_ace {
|
||
|
|
zfs_ace_hdr_t z_hdr;
|
||
|
|
uint64_t z_fuid;
|
||
|
|
} zfs_ace_t;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The following type only applies to ACE_ACCESS_ALLOWED|DENIED_OBJECT_ACE_TYPE
|
||
|
|
* and will only be set/retrieved in a CIFS context.
|
||
|
|
*/
|
||
|
|
|
||
|
|
typedef struct zfs_object_ace {
|
||
|
|
zfs_ace_t z_ace;
|
||
|
|
uint8_t z_object_type[16]; /* object type */
|
||
|
|
uint8_t z_inherit_type[16]; /* inherited object type */
|
||
|
|
} zfs_object_ace_t;
|
||
|
|
|
||
|
|
typedef struct zfs_oldace {
|
||
|
|
uint32_t z_fuid; /* "who" */
|
||
|
|
uint32_t z_access_mask; /* access mask */
|
||
|
|
uint16_t z_flags; /* flags, i.e inheritance */
|
||
|
|
uint16_t z_type; /* type of entry allow/deny */
|
||
|
|
} zfs_oldace_t;
|
||
|
|
|
||
|
|
typedef struct zfs_acl_phys_v0 {
|
||
|
|
uint64_t z_acl_extern_obj; /* ext acl pieces */
|
||
|
|
uint32_t z_acl_count; /* Number of ACEs */
|
||
|
|
uint16_t z_acl_version; /* acl version */
|
||
|
|
uint16_t z_acl_pad; /* pad */
|
||
|
|
zfs_oldace_t z_ace_data[ACE_SLOT_CNT]; /* 6 standard ACEs */
|
||
|
|
} zfs_acl_phys_v0_t;
|
||
|
|
|
||
|
|
#define ZFS_ACE_SPACE (sizeof (zfs_oldace_t) * ACE_SLOT_CNT)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Size of ACL count is always 2 bytes.
|
||
|
|
* Necessary to for dealing with both V0 ACL and V1 ACL layout
|
||
|
|
*/
|
||
|
|
#define ZFS_ACL_COUNT_SIZE (sizeof (uint16_t))
|
||
|
|
|
||
|
|
typedef struct zfs_acl_phys {
|
||
|
|
uint64_t z_acl_extern_obj; /* ext acl pieces */
|
||
|
|
uint32_t z_acl_size; /* Number of bytes in ACL */
|
||
|
|
uint16_t z_acl_version; /* acl version */
|
||
|
|
uint16_t z_acl_count; /* ace count */
|
||
|
|
uint8_t z_ace_data[ZFS_ACE_SPACE]; /* space for embedded ACEs */
|
||
|
|
} zfs_acl_phys_t;
|
||
|
|
|
||
|
|
typedef struct acl_ops {
|
||
|
|
uint32_t (*ace_mask_get) (void *acep); /* get access mask */
|
||
|
|
void (*ace_mask_set) (void *acep,
|
||
|
|
uint32_t mask); /* set access mask */
|
||
|
|
uint16_t (*ace_flags_get) (void *acep); /* get flags */
|
||
|
|
void (*ace_flags_set) (void *acep,
|
||
|
|
uint16_t flags); /* set flags */
|
||
|
|
uint16_t (*ace_type_get)(void *acep); /* get type */
|
||
|
|
void (*ace_type_set)(void *acep,
|
||
|
|
uint16_t type); /* set type */
|
||
|
|
uint64_t (*ace_who_get)(void *acep); /* get who/fuid */
|
||
|
|
void (*ace_who_set)(void *acep,
|
||
|
|
uint64_t who); /* set who/fuid */
|
||
|
|
size_t (*ace_size)(void *acep); /* how big is this ace */
|
||
|
|
size_t (*ace_abstract_size)(void); /* sizeof abstract entry */
|
||
|
|
int (*ace_mask_off)(void); /* off of access mask in ace */
|
||
|
|
/* ptr to data if any */
|
||
|
|
int (*ace_data)(void *acep, void **datap);
|
||
|
|
} acl_ops_t;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* A zfs_acl_t structure is composed of a list of zfs_acl_node_t's.
|
||
|
|
* Each node will have one or more ACEs associated with it. You will
|
||
|
|
* only have multiple nodes during a chmod operation. Normally only
|
||
|
|
* one node is required.
|
||
|
|
*/
|
||
|
|
typedef struct zfs_acl_node {
|
||
|
|
list_node_t z_next; /* Next chunk of ACEs */
|
||
|
|
void *z_acldata; /* pointer into actual ACE(s) */
|
||
|
|
void *z_allocdata; /* pointer to kmem allocated memory */
|
||
|
|
size_t z_allocsize; /* Size of blob in bytes */
|
||
|
|
size_t z_size; /* length of ACL data */
|
||
|
|
uint64_t z_ace_count; /* number of ACEs in this acl node */
|
||
|
|
int z_ace_idx; /* ace iterator positioned on */
|
||
|
|
} zfs_acl_node_t;
|
||
|
|
|
||
|
|
typedef struct zfs_acl {
|
||
|
|
uint64_t z_acl_count; /* Number of ACEs */
|
||
|
|
size_t z_acl_bytes; /* Number of bytes in ACL */
|
||
|
|
uint_t z_version; /* version of ACL */
|
||
|
|
void *z_next_ace; /* pointer to next ACE */
|
||
|
|
uint64_t z_hints; /* ACL hints (ZFS_INHERIT_ACE ...) */
|
||
|
|
zfs_acl_node_t *z_curr_node; /* current node iterator is handling */
|
||
|
|
list_t z_acl; /* chunks of ACE data */
|
||
|
|
acl_ops_t *z_ops; /* ACL operations */
|
||
|
|
} zfs_acl_t;
|
||
|
|
|
||
|
|
typedef struct acl_locator_cb {
|
||
|
|
zfs_acl_t *cb_aclp;
|
||
|
|
zfs_acl_node_t *cb_acl_node;
|
||
|
|
} zfs_acl_locator_cb_t;
|
||
|
|
|
||
|
|
#define ACL_DATA_ALLOCED 0x1
|
||
|
|
#define ZFS_ACL_SIZE(aclcnt) (sizeof (ace_t) * (aclcnt))
|
||
|
|
|
||
|
|
struct zfs_fuid_info;
|
||
|
|
|
||
|
|
typedef struct zfs_acl_ids {
|
||
|
|
uint64_t z_fuid; /* file owner fuid */
|
||
|
|
uint64_t z_fgid; /* file group owner fuid */
|
||
|
|
uint64_t z_mode; /* mode to set on create */
|
||
|
|
zfs_acl_t *z_aclp; /* ACL to create with file */
|
||
|
|
struct zfs_fuid_info *z_fuidp; /* for tracking fuids for log */
|
||
|
|
} zfs_acl_ids_t;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Property values for acl_mode and acl_inherit.
|
||
|
|
*
|
||
|
|
* acl_mode can take discard, noallow, groupmask and passthrough.
|
||
|
|
* whereas acl_inherit has secure instead of groupmask.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define ZFS_ACL_DISCARD 0
|
||
|
|
#define ZFS_ACL_NOALLOW 1
|
||
|
|
#define ZFS_ACL_GROUPMASK 2
|
||
|
|
#define ZFS_ACL_PASSTHROUGH 3
|
||
|
|
#define ZFS_ACL_RESTRICTED 4
|
||
|
|
#define ZFS_ACL_PASSTHROUGH_X 5
|
||
|
|
|
||
|
|
struct znode;
|
||
|
|
struct zfsvfs;
|
||
|
|
|
||
|
|
#ifdef _KERNEL
|
||
|
|
int zfs_acl_ids_create(struct znode *, int, vattr_t *,
|
||
|
|
cred_t *, vsecattr_t *, zfs_acl_ids_t *);
|
||
|
|
void zfs_acl_ids_free(zfs_acl_ids_t *);
|
||
|
|
boolean_t zfs_acl_ids_overquota(struct zfsvfs *, zfs_acl_ids_t *, uint64_t);
|
||
|
|
int zfs_getacl(struct znode *, vsecattr_t *, boolean_t, cred_t *);
|
||
|
|
int zfs_setacl(struct znode *, vsecattr_t *, boolean_t, cred_t *);
|
||
|
|
void zfs_acl_rele(void *);
|
||
|
|
void zfs_oldace_byteswap(ace_t *, int);
|
||
|
|
void zfs_ace_byteswap(void *, size_t, boolean_t);
|
||
|
|
extern boolean_t zfs_has_access(struct znode *zp, cred_t *cr);
|
||
|
|
extern int zfs_zaccess(struct znode *, int, int, boolean_t, cred_t *);
|
||
|
|
int zfs_fastaccesschk_execute(struct znode *, cred_t *);
|
||
|
|
extern int zfs_zaccess_rwx(struct znode *, mode_t, int, cred_t *);
|
||
|
|
extern int zfs_zaccess_unix(struct znode *, mode_t, cred_t *);
|
||
|
|
extern int zfs_acl_access(struct znode *, int, cred_t *);
|
||
|
|
void zfs_acl_chmod_setattr(struct znode *, zfs_acl_t **, uint64_t);
|
||
|
|
int zfs_zaccess_delete(struct znode *, struct znode *, cred_t *);
|
||
|
|
int zfs_zaccess_rename(struct znode *, struct znode *,
|
||
|
|
struct znode *, struct znode *, cred_t *cr);
|
||
|
|
void zfs_acl_free(zfs_acl_t *);
|
||
|
|
int zfs_vsec_2_aclp(struct zfsvfs *, umode_t, vsecattr_t *, cred_t *,
|
||
|
|
struct zfs_fuid_info **, zfs_acl_t **);
|
||
|
|
int zfs_aclset_common(struct znode *, zfs_acl_t *, cred_t *, dmu_tx_t *);
|
||
|
|
uint64_t zfs_external_acl(struct znode *);
|
||
|
|
int zfs_znode_acl_version(struct znode *);
|
||
|
|
int zfs_acl_size(struct znode *, int *);
|
||
|
|
zfs_acl_t *zfs_acl_alloc(int);
|
||
|
|
zfs_acl_node_t *zfs_acl_node_alloc(size_t);
|
||
|
|
void zfs_acl_xform(struct znode *, zfs_acl_t *, cred_t *);
|
||
|
|
void zfs_acl_data_locator(void **, uint32_t *, uint32_t, boolean_t, void *);
|
||
|
|
uint64_t zfs_mode_compute(uint64_t, zfs_acl_t *,
|
||
|
|
uint64_t *, uint64_t, uint64_t);
|
||
|
|
int zfs_acl_node_read(struct znode *, boolean_t, zfs_acl_t **, boolean_t);
|
||
|
|
int zfs_acl_chown_setattr(struct znode *);
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
#endif /* _SYS_FS_ZFS_ACL_H */
|