Move the world out of /zfs/ and seperate out module build tree

1 files changed, 175 insertions, 0 deletions

diff --git a/module/zfs/zfs_byteswap.c b/module/zfs/zfs_byteswap.c
new file mode 100644
index 000000000..ab97f83eb
--- /dev/null
+++ b/module/zfs/zfs_byteswap.c
@@ -0,0 +1,175 @@
+/*
+ * 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);
+}