160 lines
4.5 KiB
C
160 lines
4.5 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2014 Xin Li <delphij@FreeBSD.org>. All rights reserved.
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* Copyright 2013 Martin Matuska <mm@FreeBSD.org>. All rights reserved.
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* Use is subject to license terms.
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*/
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#ifndef _SYS_ZFS_IOCTL_COMPAT_H
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#define _SYS_ZFS_IOCTL_COMPAT_H
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#include <sys/cred.h>
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#include <sys/dmu.h>
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#include <sys/zio.h>
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#include <sys/dsl_deleg.h>
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#include <sys/zfs_ioctl.h>
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#ifdef _KERNEL
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#include <sys/nvpair.h>
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#endif /* _KERNEL */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* Backwards ioctl compatibility
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*/
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/* ioctl versions for vfs.zfs.version.ioctl */
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#define ZFS_IOCVER_UNDEF -1
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#define ZFS_IOCVER_NONE 0
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#define ZFS_IOCVER_DEADMAN 1
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#define ZFS_IOCVER_LZC 2
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#define ZFS_IOCVER_ZCMD 3
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#define ZFS_IOCVER_EDBP 4
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#define ZFS_IOCVER_RESUME 5
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#define ZFS_IOCVER_INLANES 6
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#define ZFS_IOCVER_PAD 7
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#define ZFS_IOCVER_LEGACY ZFS_IOCVER_PAD
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#define ZFS_IOCVER_OZFS 15
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/* compatibility conversion flag */
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#define ZFS_CMD_COMPAT_NONE 0
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#define ZFS_CMD_COMPAT_V15 1
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#define ZFS_CMD_COMPAT_V28 2
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#define ZFS_CMD_COMPAT_DEADMAN 3
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#define ZFS_CMD_COMPAT_LZC 4
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#define ZFS_CMD_COMPAT_ZCMD 5
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#define ZFS_CMD_COMPAT_EDBP 6
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#define ZFS_CMD_COMPAT_RESUME 7
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#define ZFS_CMD_COMPAT_INLANES 8
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#define ZFS_CMD_COMPAT_LEGACY 9
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#define ZFS_IOC_COMPAT_PASS 254
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#define ZFS_IOC_COMPAT_FAIL 255
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#define ZFS_IOCREQ(ioreq) ((ioreq) & 0xff)
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typedef struct zfs_iocparm {
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uint32_t zfs_ioctl_version;
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uint64_t zfs_cmd;
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uint64_t zfs_cmd_size;
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} zfs_iocparm_t;
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#define LEGACY_MAXPATHLEN 1024
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#define LEGACY_MAXNAMELEN 256
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/*
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* Note: this struct must have the same layout in 32-bit and 64-bit, so
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* that 32-bit processes (like /sbin/zfs) can pass it to the 64-bit
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* kernel. Therefore, we add padding to it so that no "hidden" padding
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* is automatically added on 64-bit (but not on 32-bit).
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*/
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typedef struct zfs_cmd_legacy {
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char zc_name[LEGACY_MAXPATHLEN]; /* pool|dataset name */
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uint64_t zc_nvlist_src; /* really (char *) */
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uint64_t zc_nvlist_src_size;
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uint64_t zc_nvlist_dst; /* really (char *) */
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uint64_t zc_nvlist_dst_size;
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boolean_t zc_nvlist_dst_filled; /* put an nvlist in dst? */
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int zc_pad2;
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/*
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* The following members are for legacy ioctls which haven't been
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* converted to the new method.
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*/
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uint64_t zc_history; /* really (char *) */
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char zc_value[LEGACY_MAXPATHLEN * 2];
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char zc_string[LEGACY_MAXNAMELEN];
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uint64_t zc_guid;
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uint64_t zc_nvlist_conf; /* really (char *) */
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uint64_t zc_nvlist_conf_size;
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uint64_t zc_cookie;
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uint64_t zc_objset_type;
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uint64_t zc_perm_action;
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uint64_t zc_history_len;
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uint64_t zc_history_offset;
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uint64_t zc_obj;
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uint64_t zc_iflags; /* internal to zfs(7fs) */
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zfs_share_t zc_share;
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uint64_t zc_jailid;
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dmu_objset_stats_t zc_objset_stats;
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dmu_replay_record_t zc_begin_record;
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zinject_record_t zc_inject_record;
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uint32_t zc_defer_destroy;
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uint32_t zc_flags;
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uint64_t zc_action_handle;
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int zc_cleanup_fd;
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uint8_t zc_simple;
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uint8_t zc_pad3[3];
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boolean_t zc_resumable;
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uint32_t zc_pad4;
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uint64_t zc_sendobj;
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uint64_t zc_fromobj;
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uint64_t zc_createtxg;
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zfs_stat_t zc_stat;
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} zfs_cmd_legacy_t;
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#ifdef _KERNEL
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int zfs_ioctl_compat_pre(zfs_cmd_t *, int *, const int);
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void zfs_ioctl_compat_post(zfs_cmd_t *, const int, const int);
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nvlist_t *zfs_ioctl_compat_innvl(zfs_cmd_t *, nvlist_t *, const int,
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const int);
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nvlist_t *zfs_ioctl_compat_outnvl(zfs_cmd_t *, nvlist_t *, const int,
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const int);
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#endif /* _KERNEL */
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int zfs_ioctl_legacy_to_ozfs(int request);
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int zfs_ioctl_ozfs_to_legacy(int request);
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void zfs_cmd_legacy_to_ozfs(zfs_cmd_legacy_t *src, zfs_cmd_t *dst);
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void zfs_cmd_compat_get(zfs_cmd_t *, caddr_t, const int);
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void zfs_cmd_ozfs_to_legacy(zfs_cmd_t *src, zfs_cmd_legacy_t *dst);
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void zfs_cmd_compat_put(zfs_cmd_t *, caddr_t, const int, const int);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SYS_ZFS_IOCTL_COMPAT_H */
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