1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
/*
* 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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/zfs_context.h>
#include <sys/vfs.h>
#include <sys/fs/zfs.h>
#include <sys/zfs_znode.h>
#include <sys/zfs_acl.h>
void
zfs_oldace_byteswap(ace_t *ace, int ace_cnt)
{
int i;
for (i = 0; i != ace_cnt; i++, ace++) {
ace->a_who = BSWAP_32(ace->a_who);
ace->a_access_mask = BSWAP_32(ace->a_access_mask);
ace->a_flags = BSWAP_16(ace->a_flags);
ace->a_type = BSWAP_16(ace->a_type);
}
}
/*
* swap ace_t and ace_oject_t
*/
void
zfs_ace_byteswap(void *buf, size_t size, boolean_t zfs_layout)
{
caddr_t end;
caddr_t ptr;
zfs_ace_t *zacep;
ace_t *acep;
uint16_t entry_type;
size_t entry_size;
int ace_type;
end = (caddr_t)buf + size;
ptr = buf;
while (ptr < end) {
if (zfs_layout) {
zacep = (zfs_ace_t *)ptr;
zacep->z_hdr.z_access_mask =
BSWAP_32(zacep->z_hdr.z_access_mask);
zacep->z_hdr.z_flags = BSWAP_16(zacep->z_hdr.z_flags);
ace_type = zacep->z_hdr.z_type =
BSWAP_16(zacep->z_hdr.z_type);
entry_type = zacep->z_hdr.z_flags & ACE_TYPE_FLAGS;
} else {
acep = (ace_t *)ptr;
acep->a_access_mask = BSWAP_32(acep->a_access_mask);
acep->a_flags = BSWAP_16(acep->a_flags);
ace_type = acep->a_type = BSWAP_16(acep->a_type);
acep->a_who = BSWAP_32(acep->a_who);
entry_type = acep->a_flags & ACE_TYPE_FLAGS;
}
switch (entry_type) {
case ACE_OWNER:
case ACE_EVERYONE:
case (ACE_IDENTIFIER_GROUP | ACE_GROUP):
entry_size = zfs_layout ?
sizeof (zfs_ace_hdr_t) : sizeof (ace_t);
break;
case ACE_IDENTIFIER_GROUP:
default:
if (zfs_layout) {
zacep->z_fuid = BSWAP_64(zacep->z_fuid);
}
switch (ace_type) {
case ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE:
case ACE_ACCESS_DENIED_OBJECT_ACE_TYPE:
case ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE:
case ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE:
entry_size = zfs_layout ?
sizeof (zfs_object_ace_t) :
sizeof (ace_object_t);
break;
default:
entry_size = zfs_layout ? sizeof (zfs_ace_t) :
sizeof (ace_t);
break;
}
}
ptr = ptr + entry_size;
}
}
/* ARGSUSED */
void
zfs_oldacl_byteswap(void *buf, size_t size)
{
int cnt;
/*
* Arggh, since we don't know how many ACEs are in
* the array, we have to swap the entire block
*/
cnt = size / sizeof (ace_t);
zfs_oldace_byteswap((ace_t *)buf, cnt);
}
/* ARGSUSED */
void
zfs_acl_byteswap(void *buf, size_t size)
{
zfs_ace_byteswap(buf, size, B_TRUE);
}
void
zfs_znode_byteswap(void *buf, size_t size)
{
znode_phys_t *zp = buf;
ASSERT(size >= sizeof (znode_phys_t));
zp->zp_crtime[0] = BSWAP_64(zp->zp_crtime[0]);
zp->zp_crtime[1] = BSWAP_64(zp->zp_crtime[1]);
zp->zp_atime[0] = BSWAP_64(zp->zp_atime[0]);
zp->zp_atime[1] = BSWAP_64(zp->zp_atime[1]);
zp->zp_mtime[0] = BSWAP_64(zp->zp_mtime[0]);
zp->zp_mtime[1] = BSWAP_64(zp->zp_mtime[1]);
zp->zp_ctime[0] = BSWAP_64(zp->zp_ctime[0]);
zp->zp_ctime[1] = BSWAP_64(zp->zp_ctime[1]);
zp->zp_gen = BSWAP_64(zp->zp_gen);
zp->zp_mode = BSWAP_64(zp->zp_mode);
zp->zp_size = BSWAP_64(zp->zp_size);
zp->zp_parent = BSWAP_64(zp->zp_parent);
zp->zp_links = BSWAP_64(zp->zp_links);
zp->zp_xattr = BSWAP_64(zp->zp_xattr);
zp->zp_rdev = BSWAP_64(zp->zp_rdev);
zp->zp_flags = BSWAP_64(zp->zp_flags);
zp->zp_uid = BSWAP_64(zp->zp_uid);
zp->zp_gid = BSWAP_64(zp->zp_gid);
zp->zp_zap = BSWAP_64(zp->zp_zap);
zp->zp_pad[0] = BSWAP_64(zp->zp_pad[0]);
zp->zp_pad[1] = BSWAP_64(zp->zp_pad[1]);
zp->zp_pad[2] = BSWAP_64(zp->zp_pad[2]);
zp->zp_acl.z_acl_extern_obj = BSWAP_64(zp->zp_acl.z_acl_extern_obj);
zp->zp_acl.z_acl_size = BSWAP_32(zp->zp_acl.z_acl_size);
zp->zp_acl.z_acl_version = BSWAP_16(zp->zp_acl.z_acl_version);
zp->zp_acl.z_acl_count = BSWAP_16(zp->zp_acl.z_acl_count);
if (zp->zp_acl.z_acl_version == ZFS_ACL_VERSION) {
zfs_acl_byteswap((void *)&zp->zp_acl.z_ace_data[0],
ZFS_ACE_SPACE);
} else
zfs_oldace_byteswap((ace_t *)&zp->zp_acl.z_ace_data[0],
ACE_SLOT_CNT);
}
|
