aboutsummaryrefslogtreecommitdiff
path: root/sys/contrib/openzfs/include/os/freebsd/zfs/sys/zfs_ioctl_compat.h
diff options
context:
space:
mode:
Diffstat (limited to 'sys/contrib/openzfs/include/os/freebsd/zfs/sys/zfs_ioctl_compat.h')
-rw-r--r--sys/contrib/openzfs/include/os/freebsd/zfs/sys/zfs_ioctl_compat.h160
1 files changed, 160 insertions, 0 deletions
diff --git a/sys/contrib/openzfs/include/os/freebsd/zfs/sys/zfs_ioctl_compat.h b/sys/contrib/openzfs/include/os/freebsd/zfs/sys/zfs_ioctl_compat.h
new file mode 100644
index 000000000000..91bc48effe3f
--- /dev/null
+++ b/sys/contrib/openzfs/include/os/freebsd/zfs/sys/zfs_ioctl_compat.h
@@ -0,0 +1,160 @@
+/*
+ * 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 2014 Xin Li <delphij@FreeBSD.org>. All rights reserved.
+ * Copyright 2013 Martin Matuska <mm@FreeBSD.org>. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _SYS_ZFS_IOCTL_COMPAT_H
+#define _SYS_ZFS_IOCTL_COMPAT_H
+
+#include <sys/cred.h>
+#include <sys/dmu.h>
+#include <sys/zio.h>
+#include <sys/dsl_deleg.h>
+#include <sys/zfs_ioctl.h>
+
+#ifdef _KERNEL
+#include <sys/nvpair.h>
+#endif /* _KERNEL */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * Backwards ioctl compatibility
+ */
+
+/* ioctl versions for vfs.zfs.version.ioctl */
+#define ZFS_IOCVER_UNDEF -1
+#define ZFS_IOCVER_NONE 0
+#define ZFS_IOCVER_DEADMAN 1
+#define ZFS_IOCVER_LZC 2
+#define ZFS_IOCVER_ZCMD 3
+#define ZFS_IOCVER_EDBP 4
+#define ZFS_IOCVER_RESUME 5
+#define ZFS_IOCVER_INLANES 6
+#define ZFS_IOCVER_PAD 7
+#define ZFS_IOCVER_LEGACY ZFS_IOCVER_PAD
+#define ZFS_IOCVER_OZFS 15
+
+/* compatibility conversion flag */
+#define ZFS_CMD_COMPAT_NONE 0
+#define ZFS_CMD_COMPAT_V15 1
+#define ZFS_CMD_COMPAT_V28 2
+#define ZFS_CMD_COMPAT_DEADMAN 3
+#define ZFS_CMD_COMPAT_LZC 4
+#define ZFS_CMD_COMPAT_ZCMD 5
+#define ZFS_CMD_COMPAT_EDBP 6
+#define ZFS_CMD_COMPAT_RESUME 7
+#define ZFS_CMD_COMPAT_INLANES 8
+#define ZFS_CMD_COMPAT_LEGACY 9
+
+#define ZFS_IOC_COMPAT_PASS 254
+#define ZFS_IOC_COMPAT_FAIL 255
+
+#define ZFS_IOCREQ(ioreq) ((ioreq) & 0xff)
+
+typedef struct zfs_iocparm {
+ uint32_t zfs_ioctl_version;
+ uint64_t zfs_cmd;
+ uint64_t zfs_cmd_size;
+} zfs_iocparm_t;
+
+
+#define LEGACY_MAXPATHLEN 1024
+#define LEGACY_MAXNAMELEN 256
+
+/*
+ * Note: this struct must have the same layout in 32-bit and 64-bit, so
+ * that 32-bit processes (like /sbin/zfs) can pass it to the 64-bit
+ * kernel. Therefore, we add padding to it so that no "hidden" padding
+ * is automatically added on 64-bit (but not on 32-bit).
+ */
+typedef struct zfs_cmd_legacy {
+ char zc_name[LEGACY_MAXPATHLEN]; /* pool|dataset name */
+ uint64_t zc_nvlist_src; /* really (char *) */
+ uint64_t zc_nvlist_src_size;
+ uint64_t zc_nvlist_dst; /* really (char *) */
+ uint64_t zc_nvlist_dst_size;
+ boolean_t zc_nvlist_dst_filled; /* put an nvlist in dst? */
+ int zc_pad2;
+
+ /*
+ * The following members are for legacy ioctls which haven't been
+ * converted to the new method.
+ */
+ uint64_t zc_history; /* really (char *) */
+ char zc_value[LEGACY_MAXPATHLEN * 2];
+ char zc_string[LEGACY_MAXNAMELEN];
+ uint64_t zc_guid;
+ uint64_t zc_nvlist_conf; /* really (char *) */
+ uint64_t zc_nvlist_conf_size;
+ uint64_t zc_cookie;
+ uint64_t zc_objset_type;
+ uint64_t zc_perm_action;
+ uint64_t zc_history_len;
+ uint64_t zc_history_offset;
+ uint64_t zc_obj;
+ uint64_t zc_iflags; /* internal to zfs(7fs) */
+ zfs_share_t zc_share;
+ uint64_t zc_jailid;
+ dmu_objset_stats_t zc_objset_stats;
+ dmu_replay_record_t zc_begin_record;
+ zinject_record_t zc_inject_record;
+ uint32_t zc_defer_destroy;
+ uint32_t zc_flags;
+ uint64_t zc_action_handle;
+ int zc_cleanup_fd;
+ uint8_t zc_simple;
+ uint8_t zc_pad3[3];
+ boolean_t zc_resumable;
+ uint32_t zc_pad4;
+ uint64_t zc_sendobj;
+ uint64_t zc_fromobj;
+ uint64_t zc_createtxg;
+ zfs_stat_t zc_stat;
+} zfs_cmd_legacy_t;
+
+
+#ifdef _KERNEL
+int zfs_ioctl_compat_pre(zfs_cmd_t *, int *, const int);
+void zfs_ioctl_compat_post(zfs_cmd_t *, const int, const int);
+nvlist_t *zfs_ioctl_compat_innvl(zfs_cmd_t *, nvlist_t *, const int,
+ const int);
+nvlist_t *zfs_ioctl_compat_outnvl(zfs_cmd_t *, nvlist_t *, const int,
+ const int);
+#endif /* _KERNEL */
+int zfs_ioctl_legacy_to_ozfs(int request);
+int zfs_ioctl_ozfs_to_legacy(int request);
+void zfs_cmd_legacy_to_ozfs(zfs_cmd_legacy_t *src, zfs_cmd_t *dst);
+void zfs_cmd_compat_get(zfs_cmd_t *, caddr_t, const int);
+void zfs_cmd_ozfs_to_legacy(zfs_cmd_t *src, zfs_cmd_legacy_t *dst);
+
+void zfs_cmd_compat_put(zfs_cmd_t *, caddr_t, const int, const int);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_ZFS_IOCTL_COMPAT_H */