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/*
* Copyright (c) 2007-2009 Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Copyright (C) 2005 Csaba Henk.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include "fuse_kernel.h"
#define FUSE_DEFAULT_DAEMON_TIMEOUT 60 /* s */
#define FUSE_MIN_DAEMON_TIMEOUT 0 /* s */
#define FUSE_MAX_DAEMON_TIMEOUT 600 /* s */
#ifndef FUSE_FREEBSD_VERSION
#define FUSE_FREEBSD_VERSION "0.4.4"
#endif
/* Mapping versions to features */
#define FUSE_KERNELABI_GEQ(maj, min) \
(FUSE_KERNEL_VERSION > (maj) || (FUSE_KERNEL_VERSION == (maj) && FUSE_KERNEL_MINOR_VERSION >= (min)))
/*
* Appearance of new FUSE operations is not always in par with version
* numbering... At least, 7.3 is a sufficient condition for having
* FUSE_{ACCESS,CREATE}.
*/
#if FUSE_KERNELABI_GEQ(7, 3)
#ifndef FUSE_HAS_ACCESS
#define FUSE_HAS_ACCESS 1
#endif
#ifndef FUSE_HAS_CREATE
#define FUSE_HAS_CREATE 1
#endif
#else /* FUSE_KERNELABI_GEQ(7, 3) */
#ifndef FUSE_HAS_ACCESS
#define FUSE_HAS_ACCESS 0
#endif
#ifndef FUSE_HAS_CREATE
#define FUSE_HAS_CREATE 0
#endif
#endif
#if FUSE_KERNELABI_GEQ(7, 7)
#ifndef FUSE_HAS_GETLK
#define FUSE_HAS_GETLK 1
#endif
#ifndef FUSE_HAS_SETLK
#define FUSE_HAS_SETLK 1
#endif
#ifndef FUSE_HAS_SETLKW
#define FUSE_HAS_SETLKW 1
#endif
#ifndef FUSE_HAS_INTERRUPT
#define FUSE_HAS_INTERRUPT 1
#endif
#else /* FUSE_KERNELABI_GEQ(7, 7) */
#ifndef FUSE_HAS_GETLK
#define FUSE_HAS_GETLK 0
#endif
#ifndef FUSE_HAS_SETLK
#define FUSE_HAS_SETLK 0
#endif
#ifndef FUSE_HAS_SETLKW
#define FUSE_HAS_SETLKW 0
#endif
#ifndef FUSE_HAS_INTERRUPT
#define FUSE_HAS_INTERRUPT 0
#endif
#endif
#if FUSE_KERNELABI_GEQ(7, 8)
#ifndef FUSE_HAS_FLUSH_RELEASE
#define FUSE_HAS_FLUSH_RELEASE 1
/*
* "DESTROY" came in the middle of the 7.8 era,
* so this is not completely exact...
*/
#ifndef FUSE_HAS_DESTROY
#define FUSE_HAS_DESTROY 1
#endif
#endif
#else /* FUSE_KERNELABI_GEQ(7, 8) */
#ifndef FUSE_HAS_FLUSH_RELEASE
#define FUSE_HAS_FLUSH_RELEASE 0
#ifndef FUSE_HAS_DESTROY
#define FUSE_HAS_DESTROY 0
#endif
#endif
#endif
/* misc */
SYSCTL_DECL(_vfs_fuse);
/* Fuse locking */
extern struct mtx fuse_mtx;
#define FUSE_LOCK() fuse_lck_mtx_lock(fuse_mtx)
#define FUSE_UNLOCK() fuse_lck_mtx_unlock(fuse_mtx)
#define RECTIFY_TDCR(td, cred) \
do { \
if (! (td)) \
(td) = curthread; \
if (! (cred)) \
(cred) = (td)->td_ucred; \
} while (0)
/* Debug related stuff */
#ifndef FUSE_DEBUG_DEVICE
#define FUSE_DEBUG_DEVICE 0
#endif
#ifndef FUSE_DEBUG_FILE
#define FUSE_DEBUG_FILE 0
#endif
#ifndef FUSE_DEBUG_INTERNAL
#define FUSE_DEBUG_INTERNAL 0
#endif
#ifndef FUSE_DEBUG_IO
#define FUSE_DEBUG_IO 0
#endif
#ifndef FUSE_DEBUG_IPC
#define FUSE_DEBUG_IPC 0
#endif
#ifndef FUSE_DEBUG_LOCK
#define FUSE_DEBUG_LOCK 0
#endif
#ifndef FUSE_DEBUG_VFSOPS
#define FUSE_DEBUG_VFSOPS 0
#endif
#ifndef FUSE_DEBUG_VNOPS
#define FUSE_DEBUG_VNOPS 0
#endif
#ifndef FUSE_TRACE
#define FUSE_TRACE 0
#endif
#define DEBUGX(cond, fmt, ...) do { \
if (((cond))) { \
printf("%s: " fmt, __func__, ## __VA_ARGS__); \
} } while (0)
#define fuse_lck_mtx_lock(mtx) do { \
DEBUGX(FUSE_DEBUG_LOCK, "0: lock(%s): %s@%d by %d\n", \
__STRING(mtx), __func__, __LINE__, curthread->td_proc->p_pid); \
mtx_lock(&(mtx)); \
DEBUGX(FUSE_DEBUG_LOCK, "1: lock(%s): %s@%d by %d\n", \
__STRING(mtx), __func__, __LINE__, curthread->td_proc->p_pid); \
} while (0)
#define fuse_lck_mtx_unlock(mtx) do { \
DEBUGX(FUSE_DEBUG_LOCK, "0: unlock(%s): %s@%d by %d\n", \
__STRING(mtx), __func__, __LINE__, curthread->td_proc->p_pid); \
mtx_unlock(&(mtx)); \
DEBUGX(FUSE_DEBUG_LOCK, "1: unlock(%s): %s@%d by %d\n", \
__STRING(mtx), __func__, __LINE__, curthread->td_proc->p_pid); \
} while (0)
void fuse_ipc_init(void);
void fuse_ipc_destroy(void);
int fuse_device_init(void);
void fuse_device_destroy(void);
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