4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
32 #include <sys/zfs_acl.h>
33 #include <sys/zfs_znode.h>
45 * This is the list of known attributes
46 * to the ZPL. The values of the actual
47 * attributes are not defined by the order
48 * the enums. It is controlled by the attribute
49 * registration mechanism. Two different file system
50 * could have different numeric values for the same
51 * attributes. this list is only used for dereferencing
52 * into the table that will hold the actual numeric value.
54 typedef enum zpl_attr {
78 #define ZFS_OLD_ZNODE_PHYS_SIZE 0x108
79 #define ZFS_SA_BASE_ATTR_SIZE (ZFS_OLD_ZNODE_PHYS_SIZE - \
80 sizeof (zfs_acl_phys_t))
82 #define SA_MODE_OFFSET 0
83 #define SA_SIZE_OFFSET 8
84 #define SA_GEN_OFFSET 16
85 #define SA_UID_OFFSET 24
86 #define SA_GID_OFFSET 32
87 #define SA_PARENT_OFFSET 40
89 extern sa_attr_reg_t zfs_attr_table[ZPL_END + 1];
90 extern sa_attr_reg_t zfs_legacy_attr_table[ZPL_END + 1];
93 * This is a deprecated data structure that only exists for
94 * dealing with file systems create prior to ZPL version 5.
96 typedef struct znode_phys {
97 uint64_t zp_atime[2]; /* 0 - last file access time */
98 uint64_t zp_mtime[2]; /* 16 - last file modification time */
99 uint64_t zp_ctime[2]; /* 32 - last file change time */
100 uint64_t zp_crtime[2]; /* 48 - creation time */
101 uint64_t zp_gen; /* 64 - generation (txg of creation) */
102 uint64_t zp_mode; /* 72 - file mode bits */
103 uint64_t zp_size; /* 80 - size of file */
104 uint64_t zp_parent; /* 88 - directory parent (`..') */
105 uint64_t zp_links; /* 96 - number of links to file */
106 uint64_t zp_xattr; /* 104 - DMU object for xattrs */
107 uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */
108 uint64_t zp_flags; /* 120 - persistent flags */
109 uint64_t zp_uid; /* 128 - file owner */
110 uint64_t zp_gid; /* 136 - owning group */
111 uint64_t zp_zap; /* 144 - extra attributes */
112 uint64_t zp_pad[3]; /* 152 - future */
113 zfs_acl_phys_t zp_acl; /* 176 - 263 ACL */
115 * Data may pad out any remaining bytes in the znode buffer, eg:
117 * |<---------------------- dnode_phys (512) ------------------------>|
118 * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->|
119 * |<---- znode (264) ---->|<---- data (56) ---->|
121 * At present, we use this space for the following:
123 * - 32-byte anti-virus scanstamp (regular files only)
128 int zfs_sa_readlink(struct znode *, uio_t *);
129 void zfs_sa_symlink(struct znode *, char *link, int len, dmu_tx_t *);
130 void zfs_sa_upgrade(struct sa_handle *, dmu_tx_t *);
131 void zfs_sa_get_scanstamp(struct znode *, xvattr_t *);
132 void zfs_sa_set_scanstamp(struct znode *, xvattr_t *, dmu_tx_t *);
133 void zfs_sa_uprade_pre(struct sa_handle *, void *, dmu_tx_t *);
134 void zfs_sa_upgrade_post(struct sa_handle *, void *, dmu_tx_t *);
135 void zfs_sa_upgrade_txholds(dmu_tx_t *, struct znode *);
142 #endif /* _SYS_ZFS_SA_H */