+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.gnu.org/licenses/gpl-2.0.html
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, 2017, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/uaccess.h>
-#include <libcfs/libcfs.h>
-
-static inline size_t libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
-{
- size_t len = sizeof(*data);
-
- len += (data->ioc_inllen1 + 7) & ~7;
- len += (data->ioc_inllen2 + 7) & ~7;
- return len;
-}
-
-static bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
-{
- if (data->ioc_hdr.ioc_len > BIT(30))
- return true;
-
- if (data->ioc_inllen1 > BIT(30))
- return true;
-
- if (data->ioc_inllen2 > BIT(30))
- return true;
-
- if (data->ioc_inlbuf1 && !data->ioc_inllen1)
- return true;
-
- if (data->ioc_inlbuf2 && !data->ioc_inllen2)
- return true;
-
- if (data->ioc_pbuf1 && !data->ioc_plen1)
- return true;
-
- if (data->ioc_pbuf2 && !data->ioc_plen2)
- return true;
-
- if (data->ioc_plen1 && !data->ioc_pbuf1)
- return true;
-
- if (data->ioc_plen2 && !data->ioc_pbuf2)
- return true;
-
- if (libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len)
- return true;
-
- if (data->ioc_inllen1 &&
- data->ioc_bulk[((data->ioc_inllen1 + 7) & ~7) +
- data->ioc_inllen2 - 1] != '\0')
- return true;
-
- return false;
-}
-
-int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data)
-{
- ENTRY;
-
- if (libcfs_ioctl_is_invalid(data)) {
- CERROR("libcfs ioctl: parameter not correctly formatted\n");
- RETURN(-EINVAL);
- }
-
- if (data->ioc_inllen1 != 0)
- data->ioc_inlbuf1 = &data->ioc_bulk[0];
-
- if (data->ioc_inllen2 != 0)
- data->ioc_inlbuf2 = &data->ioc_bulk[0] +
- cfs_size_round(data->ioc_inllen1);
-
- RETURN(0);
-}
-
-int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
- struct libcfs_ioctl_hdr __user *uhdr)
-{
- struct libcfs_ioctl_hdr hdr;
- int err;
- ENTRY;
-
- if (copy_from_user(&hdr, uhdr, sizeof(hdr)))
- RETURN(-EFAULT);
-
- if (hdr.ioc_version != LIBCFS_IOCTL_VERSION &&
- hdr.ioc_version != LIBCFS_IOCTL_VERSION2) {
- CERROR("libcfs ioctl: version mismatch expected %#x, got %#x\n",
- LIBCFS_IOCTL_VERSION, hdr.ioc_version);
- RETURN(-EINVAL);
- }
-
- if (hdr.ioc_len < sizeof(struct libcfs_ioctl_hdr)) {
- CERROR("libcfs ioctl: user buffer too small for ioctl\n");
- RETURN(-EINVAL);
- }
-
- if (hdr.ioc_len > LIBCFS_IOC_DATA_MAX) {
- CERROR("libcfs ioctl: user buffer is too large %d/%d\n",
- hdr.ioc_len, LIBCFS_IOC_DATA_MAX);
- RETURN(-EINVAL);
- }
-
- LIBCFS_ALLOC(*hdr_pp, hdr.ioc_len);
- if (*hdr_pp == NULL)
- RETURN(-ENOMEM);
-
- if (copy_from_user(*hdr_pp, uhdr, hdr.ioc_len))
- GOTO(free, err = -EFAULT);
-
- if ((*hdr_pp)->ioc_version != hdr.ioc_version ||
- (*hdr_pp)->ioc_len != hdr.ioc_len) {
- GOTO(free, err = -EINVAL);
- }
-
- RETURN(0);
-
-free:
- LIBCFS_FREE(*hdr_pp, hdr.ioc_len);
- RETURN(err);
-}
BLOCKING_NOTIFIER_HEAD(libcfs_ioctl_list);
EXPORT_SYMBOL(libcfs_ioctl_list);
+static inline size_t libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
+{
+ size_t len = sizeof(*data);
+
+ len += (data->ioc_inllen1 + 7) & ~7;
+ len += (data->ioc_inllen2 + 7) & ~7;
+ return len;
+}
+
+static bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
+{
+ if (data->ioc_hdr.ioc_len > BIT(30))
+ return true;
+
+ if (data->ioc_inllen1 > BIT(30))
+ return true;
+
+ if (data->ioc_inllen2 > BIT(30))
+ return true;
+
+ if (data->ioc_inlbuf1 && !data->ioc_inllen1)
+ return true;
+
+ if (data->ioc_inlbuf2 && !data->ioc_inllen2)
+ return true;
+
+ if (data->ioc_pbuf1 && !data->ioc_plen1)
+ return true;
+
+ if (data->ioc_pbuf2 && !data->ioc_plen2)
+ return true;
+
+ if (data->ioc_plen1 && !data->ioc_pbuf1)
+ return true;
+
+ if (data->ioc_plen2 && !data->ioc_pbuf2)
+ return true;
+
+ if (libcfs_ioctl_packlen(data) != data->ioc_hdr.ioc_len)
+ return true;
+
+ if (data->ioc_inllen1 &&
+ data->ioc_bulk[((data->ioc_inllen1 + 7) & ~7) +
+ data->ioc_inllen2 - 1] != '\0')
+ return true;
+
+ return false;
+}
+
+int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data)
+{
+ ENTRY;
+
+ if (libcfs_ioctl_is_invalid(data)) {
+ CERROR("libcfs ioctl: parameter not correctly formatted\n");
+ RETURN(-EINVAL);
+ }
+
+ if (data->ioc_inllen1 != 0)
+ data->ioc_inlbuf1 = &data->ioc_bulk[0];
+
+ if (data->ioc_inllen2 != 0)
+ data->ioc_inlbuf2 = &data->ioc_bulk[0] +
+ cfs_size_round(data->ioc_inllen1);
+
+ RETURN(0);
+}
+
+int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
+ struct libcfs_ioctl_hdr __user *uhdr)
+{
+ struct libcfs_ioctl_hdr hdr;
+ int err;
+
+ ENTRY;
+ if (copy_from_user(&hdr, uhdr, sizeof(hdr)))
+ RETURN(-EFAULT);
+
+ if (hdr.ioc_version != LIBCFS_IOCTL_VERSION &&
+ hdr.ioc_version != LIBCFS_IOCTL_VERSION2) {
+ CERROR("libcfs ioctl: version mismatch expected %#x, got %#x\n",
+ LIBCFS_IOCTL_VERSION, hdr.ioc_version);
+ RETURN(-EINVAL);
+ }
+
+ if (hdr.ioc_len < sizeof(struct libcfs_ioctl_hdr)) {
+ CERROR("libcfs ioctl: user buffer too small for ioctl\n");
+ RETURN(-EINVAL);
+ }
+
+ if (hdr.ioc_len > LIBCFS_IOC_DATA_MAX) {
+ CERROR("libcfs ioctl: user buffer is too large %d/%d\n",
+ hdr.ioc_len, LIBCFS_IOC_DATA_MAX);
+ RETURN(-EINVAL);
+ }
+
+ LIBCFS_ALLOC(*hdr_pp, hdr.ioc_len);
+ if (*hdr_pp == NULL)
+ RETURN(-ENOMEM);
+
+ if (copy_from_user(*hdr_pp, uhdr, hdr.ioc_len))
+ GOTO(free, err = -EFAULT);
+
+ if ((*hdr_pp)->ioc_version != hdr.ioc_version ||
+ (*hdr_pp)->ioc_len != hdr.ioc_len) {
+ GOTO(free, err = -EINVAL);
+ }
+
+ RETURN(0);
+
+free:
+ LIBCFS_FREE(*hdr_pp, hdr.ioc_len);
+ RETURN(err);
+}
+
static int libcfs_ioctl(unsigned long cmd, void __user *uparam)
{
struct libcfs_ioctl_data *data = NULL;