Compare commits
3 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
|
|
472265ae8a | ||
|
|
789713fa0b | ||
|
|
efd39ff55a |
@@ -2,13 +2,20 @@
|
||||
FUSD: A Linux Framework for User-Space Devices
|
||||
----------------------------------------------
|
||||
|
||||
Welcome to FUSD!
|
||||
**Welcome to FUSD!**
|
||||
|
||||
This is FUSD snapshot 20070111, released 11 January 2007. You can get
|
||||
the most recent source, along with online documentation, from xiph.org
|
||||
SVN:
|
||||
This is FUSD snapshot 20110401, released 18 January 2012. This fork is based
|
||||
on the found on the xiph.org SVN tracker. ( http://svn.xiph.org/trunk/fusd )
|
||||
They seems to no longuer update this tool (since 11 January 2007) and since it
|
||||
longuer compile with recent Linux kernel (at around 2.6.21) and since I need
|
||||
it in personal project, I ported it to newer version (current version is 2.6.32)
|
||||
|
||||
http://svn.xiph.org/trunk/fusd
|
||||
Some feature are still missing missing or buggy form the Xiph version (due to
|
||||
changes on the kernel source tree), but it's completly useable.
|
||||
|
||||
The official URL for this fork is:
|
||||
|
||||
http://github.com/Godzil/fusd
|
||||
|
||||
There is extensive documentation available in the 'doc' directory.
|
||||
The FUSD User Manual is available in PDF, Postscript, and HTML format.
|
||||
@@ -17,7 +24,7 @@ it is fully updated, it may not cover all features that exist in the
|
||||
current version of fusd.
|
||||
|
||||
FUSD is free and open source software, released under a BSD-style
|
||||
license. See the file 'LICENSE' for details.
|
||||
license. See the file 'LICENSE' for details.
|
||||
|
||||
|
||||
QUICK START GUIDE
|
||||
@@ -25,81 +32,81 @@ QUICK START GUIDE
|
||||
|
||||
Instructions for the impatient:
|
||||
|
||||
1- Make sure you're using a system running Linux 2.6.x with udev; this
|
||||
version of fusd is incompatable with the now-deprecated devfs. If the
|
||||
1. Make sure you're using a system running Linux 2.6.x with udev; this
|
||||
version of fusd is incompatable with the now-deprecated devfs. If the
|
||||
kernel is a packaged version from a distribution, also verify any
|
||||
optional packages needed for building new kernel modules are also
|
||||
installed.
|
||||
|
||||
2- 'make ; make install' builds everything including examples, then
|
||||
2. 'make ; make install' builds everything including examples, then
|
||||
installs the libraries, includes and kernel module.
|
||||
|
||||
3- Update the udev configuration (usually in /etc/udev/rules.d/) to
|
||||
3. Update the udev configuration (usually in /etc/udev/rules.d/) to
|
||||
include the following rule:
|
||||
|
||||
# fusd device
|
||||
SUBSYSTEM=="fusd", NAME="fusd/%k"
|
||||
fusd device
|
||||
SUBSYSTEM=="fusd", NAME="fusd/%k"
|
||||
|
||||
After updating, restart udevd (skill udevd; udevd -d).
|
||||
After updating, restart udevd (skill udevd; udevd -d).
|
||||
|
||||
4- Insert the FUSD kernel module (modprobe kfusd)
|
||||
4. Insert the FUSD kernel module (`modprobe kfusd`)
|
||||
|
||||
5- Verify the fusd devices /dev/fusd/status and /dev/fusd/control
|
||||
exist. If the modprobe succeeds but no fusd devices appear,
|
||||
5. Verify the fusd devices /dev/fusd/status and /dev/fusd/control
|
||||
exist. If the modprobe succeeds but no fusd devices appear,
|
||||
doublecheck the udev rule config change and make sure udevd restarted
|
||||
successfully. The kfusd kernel module must be inserted after udev has
|
||||
successfully. The kfusd kernel module must be inserted after udev has
|
||||
been correctly configured and restarted.
|
||||
|
||||
6- Try running the helloworld example program (examples/helloworld).
|
||||
When helloworld is running, 'cat /dev/helloworld' should return
|
||||
'Hello, world!'.
|
||||
6. Try running the `helloworld` example program (examples/helloworld).
|
||||
When helloworld is running, `cat /dev/helloworld` should return
|
||||
`Hello, world!`.
|
||||
|
||||
7- For more information, read the User's Manual in the 'doc' directory.
|
||||
7. For more information, read the User's Manual in the 'doc' directory.
|
||||
|
||||
WHAT IS FUSD?
|
||||
=============
|
||||
|
||||
FUSD (pronounced "fused") is a Linux framework for proxying device
|
||||
file callbacks into user-space, allowing device files to be
|
||||
implemented by daemons instead of kernel code. Despite being
|
||||
implemented by daemons instead of kernel code. Despite being
|
||||
implemented in user-space, FUSD devices can look and act just like any
|
||||
other file under /dev which is implemented by kernel callbacks.
|
||||
|
||||
A user-space device driver can do many of the things that kernel
|
||||
drivers can't, such as perform a long-running computation, block while
|
||||
waiting for an event, or read files from the file system. Unlike
|
||||
waiting for an event, or read files from the file system. Unlike
|
||||
kernel drivers, a user-space device driver can use other device
|
||||
drivers--that is, access the network, talk to a serial port, get
|
||||
interactive input from the user, pop up GUI windows, or read from
|
||||
disks. User-space drivers implemented using FUSD can be much easier to
|
||||
disks. User-space drivers implemented using FUSD can be much easier to
|
||||
debug; it is impossible for them to crash the machine, are easily
|
||||
traceable using tools such as gdb, and can be killed and restarted
|
||||
without rebooting. FUSD drivers don't have to be in C--Perl, Python,
|
||||
without rebooting. FUSD drivers don't have to be in C--Perl, Python,
|
||||
or any other language that knows how to read from and write to a file
|
||||
descriptor can work with FUSD. User-space drivers can be swapped out,
|
||||
descriptor can work with FUSD. User-space drivers can be swapped out,
|
||||
whereas kernel drivers lock physical memory.
|
||||
|
||||
FUSD drivers are conceptually similar to kernel drivers: a set of
|
||||
callback functions called in response to system calls made on file
|
||||
descriptors by user programs. FUSD's C library provides a device
|
||||
descriptors by user programs. FUSD's C library provides a device
|
||||
registration function, similar to the kernel's devfs_register_chrdev()
|
||||
function, to create new devices. fusd_register() accepts the device
|
||||
name and a structure full of pointers. Those pointers are callback
|
||||
function, to create new devices. fusd_register() accepts the device
|
||||
name and a structure full of pointers. Those pointers are callback
|
||||
functions which are called in response to certain user system
|
||||
calls--for example, when a process tries to open, close, read from, or
|
||||
write to the device file. The callback functions should conform to
|
||||
the standard definitions of POSIX system call behavior. In many ways,
|
||||
write to the device file. The callback functions should conform to
|
||||
the standard definitions of POSIX system call behavior. In many ways,
|
||||
the user-space FUSD callback functions are identical to their kernel
|
||||
counterparts.
|
||||
|
||||
The proxying of kernel system calls that makes this kind of program
|
||||
possible is implemented by FUSD, using a combination of a kernel
|
||||
module and cooperating user-space library. The kernel module
|
||||
module and cooperating user-space library. The kernel module
|
||||
implements a character device, /dev/fusd, which is used as a control
|
||||
channel between the two. fusd_register() uses this channel to send a
|
||||
channel between the two. fusd_register() uses this channel to send a
|
||||
message to the FUSD kernel module, telling the name of the device the
|
||||
user wants to register. The kernel module, in turn, registers that
|
||||
device with the kernel proper using devfs. devfs and the kernel don't
|
||||
user wants to register. The kernel module, in turn, registers that
|
||||
device with the kernel proper using devfs. devfs and the kernel don't
|
||||
know anything unusual is happening; it appears from their point of
|
||||
view that the registered devices are simply being implemented by the
|
||||
FUSD module.
|
||||
@@ -107,22 +114,22 @@ FUSD module.
|
||||
Later, when kernel makes a callback due to a system call (e.g. when
|
||||
the character device file is opened or read), the FUSD kernel module's
|
||||
callback blocks the calling process, marshals the arguments of the
|
||||
callback into a message and sends it to user-space. Once there, the
|
||||
callback into a message and sends it to user-space. Once there, the
|
||||
library half of FUSD unmarshals it and calls whatever user-space
|
||||
callback the FUSD driver passed to fusd_register(). When that
|
||||
callback the FUSD driver passed to fusd_register(). When that
|
||||
user-space callback returns a value, the process happens in reverse:
|
||||
the return value and its side-effects are marshaled by the library
|
||||
and sent to the kernel. The FUSD kernel module unmarshals this
|
||||
and sent to the kernel. The FUSD kernel module unmarshals this
|
||||
message, matches it up with a corresponding outstanding request, and
|
||||
completes the system call. The calling process is completely unaware
|
||||
completes the system call. The calling process is completely unaware
|
||||
of this trickery; it simply enters the kernel once, blocks, unblocks,
|
||||
and returns from the system call---just as it would for any other
|
||||
blocking call.
|
||||
|
||||
One of the primary design goals of FUSD is stability. It should
|
||||
One of the primary design goals of FUSD is stability. It should
|
||||
not be possible for a FUSD driver to corrupt or crash the kernel,
|
||||
either due to error or malice. Of course, a buggy driver itself may
|
||||
corrupt itself (e.g., due to a buffer overrun). However, strict error
|
||||
either due to error or malice. Of course, a buggy driver itself may
|
||||
corrupt itself (e.g., due to a buffer overrun). However, strict error
|
||||
checking is implemented at the user-kernel boundary which should
|
||||
prevent drivers from corrupting the kernel or any other user-space
|
||||
process---including the errant driver's own clients, and other FUSD
|
||||
@@ -130,10 +137,14 @@ drivers.
|
||||
|
||||
For more information, please see the comprehensive documentation in
|
||||
the 'doc' directory.
|
||||
|
||||
> Jeremy Elson <jelson@circlemud.org> <br>
|
||||
> August 19, 2003 <br>
|
||||
|
||||
Jeremy Elson <jelson@circlemud.org>
|
||||
August 19, 2003
|
||||
> updated,<br>
|
||||
> Monty <monty@xiph.org> <br>
|
||||
> January 11, 2007 <br>
|
||||
|
||||
updated,
|
||||
Monty <monty@xiph.org>
|
||||
January 11, 2007
|
||||
> Updated, <br>
|
||||
> Godzil <godzil@godzil.net> <br>
|
||||
> March 01, 2011 / January 18, 2012 (public release on github)
|
||||
@@ -44,6 +44,7 @@
|
||||
# define __KFUSD_H__
|
||||
|
||||
# include "fusd_msg.h"
|
||||
# include <linux/version.h>
|
||||
|
||||
/* magic numbers for structure checking; unique w.r.t
|
||||
* /usr/src/linux/Documentation/magic-number.txt */
|
||||
@@ -125,8 +126,11 @@ struct fusd_dev_t_s {
|
||||
char *dev_name;
|
||||
struct CLASS *clazz;
|
||||
int owns_class;
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
|
||||
struct class_device *device;
|
||||
#else
|
||||
struct device *device;
|
||||
|
||||
#endif
|
||||
void *private_data; /* User's private data */
|
||||
struct cdev* handle;
|
||||
dev_t dev_id;
|
||||
@@ -269,8 +273,11 @@ static void fusd_vfree(void *ptr);
|
||||
/* Functions like this should be in the kernel, but they are not. Sigh. */
|
||||
# ifdef CONFIG_SMP
|
||||
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
|
||||
DECLARE_MUTEX(atomic_ops);
|
||||
|
||||
#else
|
||||
DEFINE_SEMAPHORE(atomic_ops);
|
||||
#endif
|
||||
static __inline__ int atomic_inc_and_ret(int *i)
|
||||
{
|
||||
int val;
|
||||
|
||||
157
kfusd/kfusd.c
157
kfusd/kfusd.c
@@ -38,7 +38,7 @@
|
||||
* Copyright (c) 2001, Sensoria Corporation
|
||||
* Copyright (c) 2002-2003, Regents of the University of California
|
||||
* Copyright (c) 2007 Monty and Xiph.Org
|
||||
* Copyright (c) 2009-2011 Manoel Trapier <godzil@godzil.net>
|
||||
* Copyright (c) 2009-2012 Manoel Trapier <godzil@godzil.net>
|
||||
*
|
||||
* $Id: kfusd.c 12354 2007-01-19 17:26:14Z xiphmont $
|
||||
*/
|
||||
@@ -114,37 +114,22 @@
|
||||
# define CLASS_DEVICE_DESTROY(a, b) class_simple_device_remove(b)
|
||||
|
||||
#else
|
||||
|
||||
# define CLASS class
|
||||
|
||||
# if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15)
|
||||
|
||||
# define CLASS_DEVICE_CREATE(a, b, c, d, e) device_create(a, c, d, e)
|
||||
|
||||
# define CLASS_DEVICE_CREATE(a, b, c, d, e) class_device_create(a, c, d, e)
|
||||
# else
|
||||
|
||||
# if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)
|
||||
|
||||
# define CLASS_DEVICE_CREATE(a, b, c, d, e) device_create(a, b, c, d, e)
|
||||
|
||||
# else
|
||||
|
||||
# define CLASS_DEVICE_CREATE(a, b, c, d, e) device_create(a, b, c, d, e)
|
||||
|
||||
# endif
|
||||
|
||||
# endif
|
||||
|
||||
#endif
|
||||
|
||||
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,30)
|
||||
|
||||
# define CLASS_DEVICE_DESTROY(a, b) device_destroy(a, b)
|
||||
|
||||
#else
|
||||
|
||||
# define CLASS_DEVICE_DESTROY(a, b) device_destroy(a, b)
|
||||
|
||||
#endif
|
||||
|
||||
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
|
||||
@@ -209,6 +194,11 @@ struct class_private {
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
struct sysfs_dirent *attr_sd = dentry->d_fsdata;
|
||||
struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
|
||||
*/
|
||||
|
||||
static inline struct kobject * to_kobj (struct dentry * dentry)
|
||||
{
|
||||
struct sysfs_dirent * sd = dentry->d_fsdata;
|
||||
@@ -216,7 +206,7 @@ static inline struct kobject * to_kobj (struct dentry * dentry)
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
|
||||
return ((struct kobject *) sd->s_element );
|
||||
#else
|
||||
return ((struct kobject *) sd->s_dir.kobj );
|
||||
return ((struct kobject *) sd->s_parent->s_dir.kobj );
|
||||
#endif
|
||||
else
|
||||
return NULL;
|
||||
@@ -242,8 +232,14 @@ STATIC dev_t status_id;
|
||||
|
||||
static struct CLASS *fusd_class;
|
||||
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
|
||||
static struct class_device *fusd_control_device;
|
||||
static struct class_device *fusd_status_device;
|
||||
#else
|
||||
static struct device *fusd_control_device;
|
||||
static struct device *fusd_status_device;
|
||||
#endif
|
||||
|
||||
|
||||
extern struct CLASS *sound_class;
|
||||
|
||||
@@ -258,11 +254,15 @@ STATIC DECLARE_WAIT_QUEUE_HEAD (new_device_wait);
|
||||
|
||||
/* the list of valid devices, and sem to protect it */
|
||||
LIST_HEAD (fusd_devlist_head);
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
|
||||
DECLARE_MUTEX (fusd_devlist_sem);
|
||||
#else
|
||||
DEFINE_SEMAPHORE (fusd_devlist_sem);
|
||||
#endif
|
||||
|
||||
//#ifdef MODULE_LICENSE
|
||||
MODULE_AUTHOR ("Jeremy Elson <jelson@acm.org> (c)2001");
|
||||
MODULE_AUTHOR ("Manoel Trapier <godzil@godzil.net> (c)2009-2011");
|
||||
MODULE_AUTHOR ("Manoel Trapier <godzil@godzil.net> (c)2009-2012");
|
||||
MODULE_LICENSE ("GPL");
|
||||
//#endif
|
||||
|
||||
@@ -320,7 +320,12 @@ STATIC void rdebug_real (char *fmt, ...)
|
||||
|
||||
# define MAX_MEM_DEBUG 10000
|
||||
|
||||
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
|
||||
DECLARE_MUTEX (fusd_memdebug_sem);
|
||||
#else
|
||||
DEFINE_SEMAPHORE (fusd_memdebug_sem);
|
||||
#endif
|
||||
|
||||
typedef struct
|
||||
{
|
||||
@@ -469,6 +474,7 @@ STATIC inline void free_fusd_msg (fusd_msg_t **fusd_msg)
|
||||
VFREE(( *fusd_msg )->data);
|
||||
( *fusd_msg )->data = NULL;
|
||||
}
|
||||
RDEBUG(1, "Freeing fusd_msg [%p] then set to NULL", fusd_msg);
|
||||
KFREE(*fusd_msg);
|
||||
*fusd_msg = NULL;
|
||||
}
|
||||
@@ -840,8 +846,10 @@ STATIC int fusd_fops_call_send (fusd_file_t *fusd_file_arg,
|
||||
|
||||
/* fill the rest of the structure */
|
||||
fusd_msg->parm.fops_msg.pid = current->pid;
|
||||
// fusd_msg->parm.fops_msg.uid = current_uid();
|
||||
// fusd_msg->parm.fops_msg.gid = current_gid();
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
|
||||
fusd_msg->parm.fops_msg.uid = current_uid();
|
||||
fusd_msg->parm.fops_msg.gid = current_gid();
|
||||
#endif
|
||||
fusd_msg->parm.fops_msg.flags = fusd_file->file->f_flags;
|
||||
fusd_msg->parm.fops_msg.offset = fusd_file->file->f_pos;
|
||||
fusd_msg->parm.fops_msg.device_info = fusd_dev->private_data;
|
||||
@@ -1140,8 +1148,13 @@ int fusd_dev_add_file (struct file *file, fusd_dev_t *fusd_dev, fusd_file_t **fu
|
||||
init_waitqueue_head(&fusd_file->file_wait);
|
||||
init_waitqueue_head(&fusd_file->poll_wait);
|
||||
INIT_LIST_HEAD(&fusd_file->transactions);
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
|
||||
init_MUTEX(&fusd_file->file_sem);
|
||||
init_MUTEX(&fusd_file->transactions_sem);
|
||||
#else
|
||||
sema_init(&fusd_file->file_sem, 1);
|
||||
sema_init(&fusd_file->transactions_sem, 1);
|
||||
#endif
|
||||
fusd_file->last_poll_sent = -1;
|
||||
fusd_file->magic = FUSD_FILE_MAGIC;
|
||||
fusd_file->fusd_dev = fusd_dev;
|
||||
@@ -1589,8 +1602,13 @@ invalid_file:
|
||||
return -EPIPE;
|
||||
}
|
||||
|
||||
#ifndef HAVE_UNLOCKED_IOCTL
|
||||
STATIC int fusd_client_ioctl (struct inode *inode, struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
#else
|
||||
STATIC long fusd_client_unlocked_ioctl (struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
#endif
|
||||
{
|
||||
fusd_dev_t *fusd_dev;
|
||||
fusd_file_t *fusd_file;
|
||||
@@ -1937,8 +1955,7 @@ invalid_dev:
|
||||
return POLLPRI;
|
||||
}
|
||||
|
||||
|
||||
|
||||
#ifndef HAVE_UNLOCKED_IOCTL
|
||||
STATIC struct file_operations fusd_client_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = fusd_client_open,
|
||||
@@ -1949,7 +1966,18 @@ STATIC struct file_operations fusd_client_fops = {
|
||||
.poll = fusd_client_poll,
|
||||
.mmap = fusd_client_mmap
|
||||
};
|
||||
|
||||
#else
|
||||
STATIC struct file_operations fusd_client_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = fusd_client_open,
|
||||
.release = fusd_client_release,
|
||||
.read = fusd_client_read,
|
||||
.write = fusd_client_write,
|
||||
.unlocked_ioctl = fusd_client_unlocked_ioctl,
|
||||
.poll = fusd_client_poll,
|
||||
.mmap = fusd_client_mmap
|
||||
};
|
||||
#endif
|
||||
|
||||
/*************************************************************************/
|
||||
/*************************************************************************/
|
||||
@@ -2177,7 +2205,7 @@ STATIC int fusd_register_device (fusd_dev_t *fusd_dev,
|
||||
|
||||
if ( sysfs )
|
||||
{
|
||||
/* Get FS superblock */
|
||||
/* Get FS superblock */
|
||||
sb = sget(sysfs, systest, NULL, NULL);
|
||||
|
||||
/* because put_filesystem isn't exported */
|
||||
@@ -2192,7 +2220,7 @@ STATIC int fusd_register_device (fusd_dev_t *fusd_dev,
|
||||
{
|
||||
struct qstr name;
|
||||
|
||||
/* Search for directory "class" in the root of this filesystem */
|
||||
/* Search for directory "class" in the root of this filesystem */
|
||||
name.name = "class";
|
||||
name.len = 5;
|
||||
name.hash = full_name_hash(name.name, name.len);
|
||||
@@ -2200,7 +2228,7 @@ STATIC int fusd_register_device (fusd_dev_t *fusd_dev,
|
||||
|
||||
if ( classdir )
|
||||
{
|
||||
/* Found, now search for class wanted name */
|
||||
/* Found, now search for class wanted name */
|
||||
name.name = register_msg.clazz;
|
||||
name.len = strlen(name.name);
|
||||
name.hash = full_name_hash(name.name, name.len);
|
||||
@@ -2212,15 +2240,16 @@ STATIC int fusd_register_device (fusd_dev_t *fusd_dev,
|
||||
struct kobject *ko = to_kobj(classdir2);
|
||||
sys_class = ( ko ? to_class(ko)->class : NULL );
|
||||
|
||||
if ( sys_class )
|
||||
{
|
||||
#if 0
|
||||
if ( sys_class )
|
||||
{
|
||||
/* W T F ???? Using an existing sys_class will led to a NULL pointer crash
|
||||
* during device creation.. Need more investigation, this comportement is clearly not
|
||||
* normal. */
|
||||
RDEBUG(1, "ERROR: Using existing class name is currently unsported !!!");
|
||||
goto register_failed4;
|
||||
}
|
||||
|
||||
RDEBUG(1, "ERROR: Using existing class name is currently unsported !!!");
|
||||
goto register_failed4;
|
||||
}
|
||||
#endif
|
||||
if ( !sys_class )
|
||||
RDEBUG(2, "WARNING: sysfs entry for %s has no kobject!\n", register_msg.clazz);
|
||||
}
|
||||
@@ -2351,7 +2380,11 @@ STATIC int fusd_open (struct inode *inode, struct file *file)
|
||||
goto file_malloc_failed;
|
||||
|
||||
init_waitqueue_head(&fusd_dev->dev_wait);
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,30)
|
||||
init_MUTEX(&fusd_dev->dev_sem);
|
||||
#else
|
||||
sema_init(&fusd_dev->dev_sem, 1);
|
||||
#endif
|
||||
fusd_dev->magic = FUSD_DEV_MAGIC;
|
||||
fusd_dev->pid = current->pid;
|
||||
fusd_dev->task = current;
|
||||
@@ -2609,7 +2642,7 @@ STATIC ssize_t fusd_write (struct file *file,
|
||||
RDEBUG(1, "%s: [%p:%p:%d:%p] [sl: %d]!!", __func__, file, buffer, length, offset, sizeof (fusd_msg_t ));
|
||||
return fusd_process_write(file, buffer, length, NULL, 0);
|
||||
}
|
||||
|
||||
#ifndef HAVE_UNLOCKED_IOCTL
|
||||
STATIC ssize_t fusd_writev (struct file *file,
|
||||
const struct iovec *iov,
|
||||
unsigned long count,
|
||||
@@ -2625,11 +2658,34 @@ STATIC ssize_t fusd_writev (struct file *file,
|
||||
iov[0].iov_base, iov[0].iov_len,
|
||||
iov[1].iov_base, iov[1].iov_len);
|
||||
}
|
||||
#else
|
||||
STATIC ssize_t fusd_aio_write (struct kiocb *iocb,
|
||||
const struct iovec *iov,
|
||||
unsigned long count,
|
||||
loff_t offset)
|
||||
{
|
||||
if ( count != 2 )
|
||||
{
|
||||
RDEBUG(2, "fusd_writev: got illegal iov count of %ld", count);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return fusd_process_write(iocb->ki_filp,
|
||||
iov[0].iov_base, iov[0].iov_len,
|
||||
iov[1].iov_base, iov[1].iov_len);
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifndef HAVE_UNLOCKED_IOCTL
|
||||
STATIC int fusd_ioctl (struct inode *inode, struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
#else
|
||||
STATIC long fusd_unlocked_ioctl (struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
#endif
|
||||
{
|
||||
void __user *argp = (void __user *) arg;
|
||||
#if 0
|
||||
struct iovec iov;
|
||||
|
||||
if ( ( argp != NULL ) && ( cmd == 0xb16b00b5 ) )
|
||||
@@ -2646,6 +2702,7 @@ STATIC int fusd_ioctl (struct inode *inode, struct file *file,
|
||||
return -EIO;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
RDEBUG(2, "%s: got illegal ioctl #%08X# Or ARG is null [%p]", __func__, cmd, argp);
|
||||
return -EINVAL;
|
||||
}
|
||||
@@ -2839,7 +2896,7 @@ invalid_dev:
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
#ifndef HAVE_UNLOCKED_IOCTL
|
||||
STATIC struct file_operations fusd_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = fusd_open,
|
||||
@@ -2850,6 +2907,19 @@ STATIC struct file_operations fusd_fops = {
|
||||
.release = fusd_release,
|
||||
.poll = fusd_poll,
|
||||
};
|
||||
#else
|
||||
STATIC struct file_operations fusd_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = fusd_open,
|
||||
.read = fusd_read,
|
||||
.write = fusd_write,
|
||||
.aio_write = fusd_aio_write,
|
||||
.unlocked_ioctl = fusd_unlocked_ioctl,
|
||||
.release = fusd_release,
|
||||
.poll = fusd_poll,
|
||||
};
|
||||
#endif
|
||||
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
@@ -2904,8 +2974,13 @@ STATIC int fusd_status_release (struct inode *inode, struct file *file)
|
||||
}
|
||||
|
||||
/* ioctl() on /dev/fusd/status */
|
||||
#ifndef HAVE_UNLOCKED_IOCTL
|
||||
STATIC int fusd_status_ioctl (struct inode *inode, struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
#else
|
||||
STATIC long fusd_status_unlocked_ioctl (struct file *file,
|
||||
unsigned int cmd, unsigned long arg)
|
||||
#endif
|
||||
{
|
||||
fusd_statcontext_t *fs = (fusd_statcontext_t *) file->private_data;
|
||||
|
||||
@@ -3123,7 +3198,7 @@ STATIC unsigned int fusd_status_poll (struct file *file, poll_table *wait)
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
#ifndef HAVE_UNLOCKED_IOCTL
|
||||
STATIC struct file_operations fusd_status_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = fusd_status_open,
|
||||
@@ -3132,6 +3207,16 @@ STATIC struct file_operations fusd_status_fops = {
|
||||
.release = fusd_status_release,
|
||||
.poll = fusd_status_poll,
|
||||
};
|
||||
#else
|
||||
STATIC struct file_operations fusd_status_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = fusd_status_open,
|
||||
.unlocked_ioctl = fusd_status_unlocked_ioctl,
|
||||
.read = fusd_status_read,
|
||||
.release = fusd_status_release,
|
||||
.poll = fusd_status_poll,
|
||||
};
|
||||
#endif
|
||||
|
||||
/*************************************************************************/
|
||||
|
||||
|
||||
Reference in New Issue
Block a user