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34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
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. | |
7 | * | |
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. | |
12 | * | |
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] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
22 | * Copyright 2007 Sun Microsystems, Inc. All rights reserved. | |
23 | * Use is subject to license terms. | |
24 | */ | |
25 | ||
b128c09f | 26 | #pragma ident "%Z%%M% %I% %E% SMI" |
34dc7c2f BB |
27 | |
28 | #include <sys/zfs_context.h> | |
29 | #include <sys/vfs.h> | |
30 | #include <sys/fs/zfs.h> | |
31 | #include <sys/zfs_znode.h> | |
32 | #include <sys/zfs_acl.h> | |
33 | ||
34 | void | |
35 | zfs_oldace_byteswap(ace_t *ace, int ace_cnt) | |
36 | { | |
37 | int i; | |
38 | ||
39 | for (i = 0; i != ace_cnt; i++, ace++) { | |
40 | ace->a_who = BSWAP_32(ace->a_who); | |
41 | ace->a_access_mask = BSWAP_32(ace->a_access_mask); | |
42 | ace->a_flags = BSWAP_16(ace->a_flags); | |
43 | ace->a_type = BSWAP_16(ace->a_type); | |
44 | } | |
45 | } | |
46 | ||
47 | /* | |
48 | * swap ace_t and ace_oject_t | |
49 | */ | |
50 | void | |
51 | zfs_ace_byteswap(void *buf, size_t size, boolean_t zfs_layout) | |
52 | { | |
53 | caddr_t end; | |
54 | caddr_t ptr; | |
55 | zfs_ace_t *zacep; | |
56 | ace_t *acep; | |
57 | uint16_t entry_type; | |
58 | size_t entry_size; | |
59 | int ace_type; | |
60 | ||
61 | end = (caddr_t)buf + size; | |
62 | ptr = buf; | |
63 | ||
64 | while (ptr < end) { | |
65 | if (zfs_layout) { | |
66 | zacep = (zfs_ace_t *)ptr; | |
67 | zacep->z_hdr.z_access_mask = | |
68 | BSWAP_32(zacep->z_hdr.z_access_mask); | |
69 | zacep->z_hdr.z_flags = BSWAP_16(zacep->z_hdr.z_flags); | |
70 | ace_type = zacep->z_hdr.z_type = | |
71 | BSWAP_16(zacep->z_hdr.z_type); | |
72 | entry_type = zacep->z_hdr.z_flags & ACE_TYPE_FLAGS; | |
73 | } else { | |
74 | acep = (ace_t *)ptr; | |
75 | acep->a_access_mask = BSWAP_32(acep->a_access_mask); | |
76 | acep->a_flags = BSWAP_16(acep->a_flags); | |
77 | ace_type = acep->a_type = BSWAP_16(acep->a_type); | |
78 | acep->a_who = BSWAP_32(acep->a_who); | |
79 | entry_type = acep->a_flags & ACE_TYPE_FLAGS; | |
80 | } | |
81 | switch (entry_type) { | |
82 | case ACE_OWNER: | |
83 | case ACE_EVERYONE: | |
84 | case (ACE_IDENTIFIER_GROUP | ACE_GROUP): | |
85 | entry_size = zfs_layout ? | |
86 | sizeof (zfs_ace_hdr_t) : sizeof (ace_t); | |
87 | break; | |
88 | case ACE_IDENTIFIER_GROUP: | |
89 | default: | |
90 | if (zfs_layout) { | |
91 | zacep->z_fuid = BSWAP_64(zacep->z_fuid); | |
92 | } | |
93 | switch (ace_type) { | |
94 | case ACE_ACCESS_ALLOWED_OBJECT_ACE_TYPE: | |
95 | case ACE_ACCESS_DENIED_OBJECT_ACE_TYPE: | |
96 | case ACE_SYSTEM_AUDIT_OBJECT_ACE_TYPE: | |
97 | case ACE_SYSTEM_ALARM_OBJECT_ACE_TYPE: | |
98 | entry_size = zfs_layout ? | |
99 | sizeof (zfs_object_ace_t) : | |
100 | sizeof (ace_object_t); | |
101 | break; | |
102 | default: | |
103 | entry_size = zfs_layout ? sizeof (zfs_ace_t) : | |
104 | sizeof (ace_t); | |
105 | break; | |
106 | } | |
107 | } | |
108 | ptr = ptr + entry_size; | |
109 | } | |
110 | } | |
111 | ||
112 | /* ARGSUSED */ | |
113 | void | |
114 | zfs_oldacl_byteswap(void *buf, size_t size) | |
115 | { | |
116 | int cnt; | |
117 | ||
118 | /* | |
119 | * Arggh, since we don't know how many ACEs are in | |
120 | * the array, we have to swap the entire block | |
121 | */ | |
122 | ||
123 | cnt = size / sizeof (ace_t); | |
124 | ||
125 | zfs_oldace_byteswap((ace_t *)buf, cnt); | |
126 | } | |
127 | ||
128 | /* ARGSUSED */ | |
129 | void | |
130 | zfs_acl_byteswap(void *buf, size_t size) | |
131 | { | |
132 | zfs_ace_byteswap(buf, size, B_TRUE); | |
133 | } | |
134 | ||
135 | void | |
136 | zfs_znode_byteswap(void *buf, size_t size) | |
137 | { | |
138 | znode_phys_t *zp = buf; | |
139 | ||
140 | ASSERT(size >= sizeof (znode_phys_t)); | |
141 | ||
142 | zp->zp_crtime[0] = BSWAP_64(zp->zp_crtime[0]); | |
143 | zp->zp_crtime[1] = BSWAP_64(zp->zp_crtime[1]); | |
144 | zp->zp_atime[0] = BSWAP_64(zp->zp_atime[0]); | |
145 | zp->zp_atime[1] = BSWAP_64(zp->zp_atime[1]); | |
146 | zp->zp_mtime[0] = BSWAP_64(zp->zp_mtime[0]); | |
147 | zp->zp_mtime[1] = BSWAP_64(zp->zp_mtime[1]); | |
148 | zp->zp_ctime[0] = BSWAP_64(zp->zp_ctime[0]); | |
149 | zp->zp_ctime[1] = BSWAP_64(zp->zp_ctime[1]); | |
150 | zp->zp_gen = BSWAP_64(zp->zp_gen); | |
151 | zp->zp_mode = BSWAP_64(zp->zp_mode); | |
152 | zp->zp_size = BSWAP_64(zp->zp_size); | |
153 | zp->zp_parent = BSWAP_64(zp->zp_parent); | |
154 | zp->zp_links = BSWAP_64(zp->zp_links); | |
155 | zp->zp_xattr = BSWAP_64(zp->zp_xattr); | |
156 | zp->zp_rdev = BSWAP_64(zp->zp_rdev); | |
157 | zp->zp_flags = BSWAP_64(zp->zp_flags); | |
158 | zp->zp_uid = BSWAP_64(zp->zp_uid); | |
159 | zp->zp_gid = BSWAP_64(zp->zp_gid); | |
160 | zp->zp_zap = BSWAP_64(zp->zp_zap); | |
161 | zp->zp_pad[0] = BSWAP_64(zp->zp_pad[0]); | |
162 | zp->zp_pad[1] = BSWAP_64(zp->zp_pad[1]); | |
163 | zp->zp_pad[2] = BSWAP_64(zp->zp_pad[2]); | |
164 | ||
165 | zp->zp_acl.z_acl_extern_obj = BSWAP_64(zp->zp_acl.z_acl_extern_obj); | |
166 | zp->zp_acl.z_acl_size = BSWAP_32(zp->zp_acl.z_acl_size); | |
167 | zp->zp_acl.z_acl_version = BSWAP_16(zp->zp_acl.z_acl_version); | |
168 | zp->zp_acl.z_acl_count = BSWAP_16(zp->zp_acl.z_acl_count); | |
169 | if (zp->zp_acl.z_acl_version == ZFS_ACL_VERSION) { | |
170 | zfs_acl_byteswap((void *)&zp->zp_acl.z_ace_data[0], | |
171 | ZFS_ACE_SPACE); | |
172 | } else | |
173 | zfs_oldace_byteswap((ace_t *)&zp->zp_acl.z_ace_data[0], | |
174 | ACE_SLOT_CNT); | |
175 | } |