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Diffstat (limited to 'cddl/contrib/opensolaris/lib/libzfs/common/libzfs_compat.c')
-rw-r--r--cddl/contrib/opensolaris/lib/libzfs/common/libzfs_compat.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_compat.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_compat.c
deleted file mode 100644
index 7545331b40b4..000000000000
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_compat.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * CDDL HEADER SART
- *
- * 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 (c) 2013 Martin Matuska <mm@FreeBSD.org>. All rights reserved.
- */
-
-#include "libzfs_compat.h"
-
-int zfs_ioctl_version = ZFS_IOCVER_UNDEF;
-static int zfs_spa_version = -1;
-
-/*
- * Get zfs_ioctl_version
- */
-int
-get_zfs_ioctl_version(void)
-{
- size_t ver_size;
- int ver = ZFS_IOCVER_NONE;
-
- ver_size = sizeof(ver);
- sysctlbyname("vfs.zfs.version.ioctl", &ver, &ver_size, NULL, 0);
-
- return (ver);
-}
-
-/*
- * Get the SPA version
- */
-static int
-get_zfs_spa_version(void)
-{
- size_t ver_size;
- int ver = 0;
-
- ver_size = sizeof(ver);
- sysctlbyname("vfs.zfs.version.spa", &ver, &ver_size, NULL, 0);
-
- return (ver);
-}
-
-/*
- * This is FreeBSD version of ioctl, because Solaris' ioctl() updates
- * zc_nvlist_dst_size even if an error is returned, on FreeBSD if an
- * error is returned zc_nvlist_dst_size won't be updated.
- */
-int
-zcmd_ioctl(int fd, int request, zfs_cmd_t *zc)
-{
- size_t oldsize;
- int ret, cflag = ZFS_CMD_COMPAT_NONE;
-
- if (zfs_ioctl_version == ZFS_IOCVER_UNDEF)
- zfs_ioctl_version = get_zfs_ioctl_version();
-
- if (zfs_ioctl_version >= ZFS_IOCVER_DEADMAN) {
- switch (zfs_ioctl_version) {
- case ZFS_IOCVER_INLANES:
- cflag = ZFS_CMD_COMPAT_INLANES;
- break;
- case ZFS_IOCVER_RESUME:
- cflag = ZFS_CMD_COMPAT_RESUME;
- break;
- case ZFS_IOCVER_EDBP:
- cflag = ZFS_CMD_COMPAT_EDBP;
- break;
- case ZFS_IOCVER_ZCMD:
- cflag = ZFS_CMD_COMPAT_ZCMD;
- break;
- case ZFS_IOCVER_LZC:
- cflag = ZFS_CMD_COMPAT_LZC;
- break;
- case ZFS_IOCVER_DEADMAN:
- cflag = ZFS_CMD_COMPAT_DEADMAN;
- break;
- }
- } else {
- /*
- * If vfs.zfs.version.ioctl is not defined, assume we have v28
- * compatible binaries and use vfs.zfs.version.spa to test for v15
- */
- cflag = ZFS_CMD_COMPAT_V28;
-
- if (zfs_spa_version < 0)
- zfs_spa_version = get_zfs_spa_version();
-
- if (zfs_spa_version == SPA_VERSION_15 ||
- zfs_spa_version == SPA_VERSION_14 ||
- zfs_spa_version == SPA_VERSION_13)
- cflag = ZFS_CMD_COMPAT_V15;
- }
-
- oldsize = zc->zc_nvlist_dst_size;
- ret = zcmd_ioctl_compat(fd, request, zc, cflag);
-
- if (ret == 0 && oldsize < zc->zc_nvlist_dst_size) {
- ret = -1;
- errno = ENOMEM;
- }
-
- return (ret);
-}