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-rw-r--r--uts/common/fs/zfs/sys/zfs_acl.h245
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diff --git a/uts/common/fs/zfs/sys/zfs_acl.h b/uts/common/fs/zfs/sys/zfs_acl.h
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+/*
+ * 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>
+#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 are store 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 */
+ int (*ace_data)(void *acep, void **datap);
+ /* ptr to data if any */
+} 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 *);
+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 *, vtype_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_chown_setattr(struct znode *);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _SYS_FS_ZFS_ACL_H */