+/*
+ * 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.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2014, 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 <libcfs/libcfs.h>
-#include <libcfs/kp30.h>
#define LNET_MINOR 240
-int libcfs_ioctl_getdata(char *buf, char *end, void *arg)
+int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data)
{
- struct libcfs_ioctl_hdr *hdr;
- struct libcfs_ioctl_data *data;
- int err;
- ENTRY;
-
- hdr = (struct libcfs_ioctl_hdr *)buf;
- data = (struct libcfs_ioctl_data *)buf;
+ ENTRY;
- err = copy_from_user(buf, (void *)arg, sizeof(*hdr));
- if (err)
- RETURN(err);
-
- if (hdr->ioc_version != LIBCFS_IOCTL_VERSION) {
- CERROR("PORTALS: version mismatch kernel vs application\n");
- RETURN(-EINVAL);
- }
+ if (libcfs_ioctl_is_invalid(data)) {
+ CERROR("libcfs ioctl: parameter not correctly formatted\n");
+ RETURN(-EINVAL);
+ }
- if (hdr->ioc_len + buf >= end) {
- CERROR("PORTALS: user buffer exceeds kernel buffer\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);
- if (hdr->ioc_len < sizeof(struct libcfs_ioctl_data)) {
- CERROR("PORTALS: user buffer too small for ioctl\n");
- RETURN(-EINVAL);
- }
+ RETURN(0);
+}
- err = copy_from_user(buf, (void *)arg, hdr->ioc_len);
- if (err)
- RETURN(err);
+int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
+ struct libcfs_ioctl_hdr __user *uhdr)
+{
+ struct libcfs_ioctl_hdr hdr;
+ int err = 0;
+ 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 (libcfs_ioctl_is_invalid(data)) {
- CERROR("PORTALS: ioctl not correctly formatted\n");
- RETURN(-EINVAL);
- }
+ if (hdr.ioc_len < sizeof(struct libcfs_ioctl_hdr)) {
+ CERROR("libcfs ioctl: user buffer too small for ioctl\n");
+ RETURN(-EINVAL);
+ }
- if (data->ioc_inllen1)
- data->ioc_inlbuf1 = &data->ioc_bulk[0];
+ 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);
+ }
- if (data->ioc_inllen2)
- data->ioc_inlbuf2 = &data->ioc_bulk[0] +
- size_round(data->ioc_inllen1);
+ LIBCFS_ALLOC(*hdr_pp, hdr.ioc_len);
+ if (*hdr_pp == NULL)
+ RETURN(-ENOMEM);
- RETURN(0);
-}
+ if (copy_from_user(*hdr_pp, uhdr, hdr.ioc_len))
+ GOTO(failed, err = -EFAULT);
-int libcfs_ioctl_popdata(void *arg, void *data, int size)
-{
- if (copy_to_user((char *)arg, data, size))
- return -EFAULT;
- return 0;
+ RETURN(0);
+failed:
+ libcfs_ioctl_freedata(*hdr_pp);
+ RETURN(err);
}
-extern struct cfs_psdev_ops libcfs_psdev_ops;
-
static int
libcfs_psdev_open(struct inode * inode, struct file * file)
{
return rc;
}
-static int
-libcfs_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long libcfs_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
{
struct cfs_psdev_file pfile;
int rc = 0;
- if (current->fsuid != 0)
+ if (!capable(CAP_SYS_ADMIN))
return -EACCES;
- if ( _IOC_TYPE(cmd) != IOC_LIBCFS_TYPE ||
- _IOC_NR(cmd) < IOC_LIBCFS_MIN_NR ||
- _IOC_NR(cmd) > IOC_LIBCFS_MAX_NR ) {
+ if (_IOC_TYPE(cmd) != IOC_LIBCFS_TYPE ||
+ _IOC_NR(cmd) < IOC_LIBCFS_MIN_NR ||
+ _IOC_NR(cmd) > IOC_LIBCFS_MAX_NR) {
CDEBUG(D_IOCTL, "invalid ioctl ( type %d, nr %d, size %d )\n",
_IOC_TYPE(cmd), _IOC_NR(cmd), _IOC_SIZE(cmd));
return (-EINVAL);
/* Handle platform-dependent IOC requests */
switch (cmd) {
case IOC_LIBCFS_PANIC:
- if (!capable (CAP_SYS_BOOT))
+ if (!cfs_capable(CFS_CAP_SYS_BOOT))
return (-EPERM);
panic("debugctl-invoked panic");
return (0);
case IOC_LIBCFS_MEMHOG:
- if (!capable (CAP_SYS_ADMIN))
+ if (!cfs_capable(CFS_CAP_SYS_ADMIN))
return -EPERM;
/* go thought */
}
pfile.off = 0;
pfile.private_data = file->private_data;
if (libcfs_psdev_ops.p_ioctl != NULL)
- rc = libcfs_psdev_ops.p_ioctl(&pfile, cmd, (void *)arg);
+ rc = libcfs_psdev_ops.p_ioctl(&pfile, cmd, (void __user *)arg);
else
rc = -EPERM;
return (rc);
}
static struct file_operations libcfs_fops = {
- ioctl: libcfs_ioctl,
- open: libcfs_psdev_open,
- release: libcfs_psdev_release
+ unlocked_ioctl: libcfs_ioctl,
+ open : libcfs_psdev_open,
+ release : libcfs_psdev_release
};
-cfs_psdev_t libcfs_dev = {
+struct miscdevice libcfs_dev = {
LNET_MINOR,
"lnet",
&libcfs_fops
};
-
-