/* * 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);