From 9d056d609f8f3861e4d4bb4ba9be1495f7a12fbc Mon Sep 17 00:00:00 2001 From: Antonio SJ Musumeci Date: Sun, 6 Nov 2022 00:25:25 -0400 Subject: [PATCH] Remove unnecessary libfuse abstractions --- libfuse/ChangeLog | 3547 ------------------------------- libfuse/Makefile | 1 - libfuse/include/fuse_lowlevel.h | 257 +-- libfuse/lib/fuse.c | 14 +- libfuse/lib/fuse_i.h | 14 +- libfuse/lib/fuse_kern_chan.c | 103 - libfuse/lib/fuse_loop_mt.c | 23 +- libfuse/lib/fuse_lowlevel.c | 52 +- libfuse/lib/fuse_mt.c | 94 +- libfuse/lib/fuse_session.c | 224 +- libfuse/lib/helper.c | 23 +- 11 files changed, 193 insertions(+), 4159 deletions(-) delete mode 100644 libfuse/ChangeLog delete mode 100644 libfuse/lib/fuse_kern_chan.c diff --git a/libfuse/ChangeLog b/libfuse/ChangeLog deleted file mode 100644 index 8371584e..00000000 --- a/libfuse/ChangeLog +++ /dev/null @@ -1,3547 +0,0 @@ -FUSE 2.9.7 (2016-06-20) -======================= - -* Added SELinux support. -* Fixed race-condition when session is terminated right after starting - a FUSE file system. - -FUSE 2.9.6 (2016-04-23) -======================= - -* Tarball now includes documentation. -* Shared-object version has now been bumped correctly. - -FUSE 2.9.5 (2016-01-14) -======================= - -* New maintainer: Nikolaus Rath . Many thanks to - Miklos Szeredi for bringing FUSE to where it is - now! - -* fix warning in mount.c:receive_fd(). Reported by Albert Berger - -* fix possible memory leak. Reported by Jose R. Guzman - -FUSE 2.9.4 (2015-05-22) -======================= - -* fix exec environment for mount and umount. Found by Tavis Ormandy - (CVE-2015-3202). - -* fix fuse_remove_signal_handlers() to properly restore the default - signal handler. Reported by: Chris Johnson - -* highlevel API: fix directory file handle passed to ioctl() method. - Reported by Eric Biggers - -* libfuse: document deadlock avoidance for fuse_notify_inval_entry() - and fuse_notify_delete() - -* fusermount, libfuse: send value as unsigned in "user_id=" and - "group_id=" options. Uids/gids larger than 2147483647 would result - in EINVAL when mounting the filesystem. This also needs a fix in - the kernel. - -* Initilaize stat buffer passed to ->getattr() and ->fgetattr() to - zero in all cases. Reported by Daniel Iwan - -* libfuse: Add missing includes. This allows compiling fuse with - musl. Patch by Daniel Thau - - -Older Versions (before 2013-01-01) -================================== - - -2013-06-20 Miklos Szeredi - - * libfuse: fix multiple close of device fd. Reported by Dan - Greenfield - -2013-03-19 Miklos Szeredi - - * libfuse: fix thread cancel race. Exiting a worker my race with - cancelling that same worker. This caused a segmenation - fault. Reported and tested by Anatol Pomozov - -2013-02-04 Miklos Szeredi - - * libfuse: fix crash in unlock_path(). Patch by Ratna Manoj - - * libfuse: fix the 'remember' option. The lru list was not - initialized for the "/" path. This resulted in remove_node_lru() - crashing on LOOKUP-DOTDOT. Patch by Madan Valluri - - * libfuse: configure: detect new util-linux - - * libfuse: Use AC_CONFIG_HEADERS instead of AM_CONFIG_HEADER. - Patch by Anatol Pomozov - - * libfuse: rename ./configure.in to ./configure.ac. Patch by - Anatol Pomozov - -2012-10-01 Miklos Szeredi - - * Released 2.9.2 - -2012-10-01 Miklos Szeredi - - * Fix deadlock in libfuse. Running "svn update" on a fuse - filesystem could deadlock because of a bug in the way the paths - are locked. Reported by Kazuaki Anami - -2012-08-23 Miklos Szeredi - - * Fix missing config.h in buffer.c. Reported by Matthew Gabeler-Lee - -2012-08-14 Miklos Szeredi - - * Not unhashing the name in forget (commit on 2011-12-09) broke - the forget logic in a subtle way, resulting in "fuse internal - error: node NNN not found" and causing the filesystem daemon to - abort. Fix by incrementing the node refcount if nlookup goes from - zero to one. Reported by Kyle Lippincott - -2012-08-13 Miklos Szeredi - - * Fix linking against GNU libiconv. Patch by Natanael Copa - -2012-07-19 Miklos Szeredi - - * Released 2.9.1 - -2012-07-19 Miklos Szeredi - - * Fix crash caused by freeing a stack address. Reported by Itay - Perl - -2012-07-04 Miklos Szeredi - - * Fix install of mount.fuse from out-of-tree build. Patch by - Olivier Blin - - * Fix build with automake >= 1.12.1. Patch by Olivier Blin - -2012-04-24 Miklos Szeredi - - * Add fallocate operation. Only works on linux kernels 3.5 or - later. Patch by Anatol Pomozov - -2012-05-16 Miklos Szeredi - - * Linking to a library that uses threads requires the application - to be linked with -pthreads otherwise some pthread functions will - be linked to stubs in glibc. So move -pthread from Libs.private - to Libs in fuse.pc. Reported by Werner Fink - - * Fix the compile command in the examples. Reported by Luciano - Dalle Ore - -2012-04-20 Miklos Szeredi - - * Released 2.9.0 - -2012-04-20 Miklos Szeredi - - * Add missing fuse_fs_flock to fuse_versionscript - -2012-04-10 Miklos Szeredi - - * Check protocol version before sending notifications and return - -ENOSYS if a particular notification is not supported. - - * Add 'flag_utime_omit_ok' flag to fuse_operations. If the - filesystem sets this flag then ->utimens() will receive UTIME_OMIT - and UTIME_NOW values as specified in utimensat(2). - -2012-01-27 Miklos Szeredi - - * Interpret octal escape codes in options. Requested by Jan - Engelhardt - -2012-01-26 Miklos Szeredi - - * Add man pages for fusermount, mount.fuse and ulockmgr_server. - Lifted from the Debian package. The man pages were written by - Daniel Baumann and Bastien Roucaries - -2012-01-13 Miklos Szeredi - - * Disable symbol versions on MacOSX. Patch by Anatol Pomozov - -2012-01-02 Miklos Szeredi - - * Remove unnecessary mutex unlock at the end of multithreaded - event loop. - -2011-12-09 Miklos Szeredi - - * Fix hang in wait_on_path(). Reported by Ville Silventoinen - - * Don't unhash name in FORGET. This resulted in ENOENT being - returned for unlinked but still open files if the kernel sent a - FORGET request for the parent directory. - - * Free request in fuse_reply_data(). - -2011-12-08 Miklos Szeredi - - * Fix build if FUSE_NODE_SLAB is not defined. Patch by Emmanuel - Dreyfus - - * Check for availability of utimensat() function. Patch by - Emmanuel Dreyfus - -2011-12-07 Miklos Szeredi - - * Add fuse_lowlevel_notify_delete() which tells the kernel that a - file or directory is deleted. Patch by John Muir - -2011-12-06 Miklos Szeredi - - * Update retrieve_reply() method - -2011-12-05 Miklos Szeredi - - * Low level API: lock argument of fuse_reply_lock should have a - 'const' qualifier. Reported by Shachar Sharon - - * Add support for ioctl on directories. Reported by Antonio SJ - Musumeci - -2011-10-13 Miklos Szeredi - - * Reply to request with ENOMEM in case of failure to allocate - request structure. Otherwise the task issuing the request will - just freeze up until the filesystem daemon is killed. Reported by - Stephan Kulow - -2011-09-23 Miklos Szeredi - - * Replace daemon() function with fork(). Patch by Anatol Pomozov - -2011-08-26 Miklos Szeredi - - * If configured with --disable-mtab then don't call mount(8) from - libfuse to update the mtab. Reported by: James Sierp - -2011-08-24 Miklos Szeredi - - * Use LRU list for cleaning up the cache if the "remember=T" - option was given. Patch by therealneworld@gmail.com - -2011-07-06 Miklos Szeredi - - * Add ->flock() operation to low and high level interfaces. This - fixes problems with emulating flock() with POSIX locking. - Reported by Sebastian Pipping. As with lock/setlk/getlk most - filesystems don't need to implement this, as the kernel takes care - of file locking. The only reason to implement locking operations - is for network filesystems which want file locking to work between - clients. - -2011-07-02 Sebastian Pipping - - * Make xmp_utimens of examples "fusexmp" and "fusexmp_fh" - not follow symlinks as other layers do that already. - -2011-06-02 Miklos Szeredi - - * Add "remember" option. This works similar to "noforget" except - that eventually the node will be allowed to expire from the cache. - Patch by therealneworld@gmail.com - -2011-05-27 Miklos Szeredi - - * Check if splice/vmsplice are supported - -2011-05-26 Miklos Szeredi - - * Remove -lrt -ldl from fuse.pc for dynamic linking since - libfuse.so is already linked with these libraries. Reported by: - Nikolaus Rath - -2011-05-20 Miklos Szeredi - - * Cleaner build output. Patch by Reuben Hawkins - -2011-05-19 Miklos Szeredi - - * Disable splice by default, add "splice_read", "splice_write" and - "splice_move" options. Keep the "no_splice_*" variants, which can - disable splice even if the filesystem explicitly enables it. - -2011-04-15 Max Krasnyansky - * Added support for "auto_unmount" option which unmounts the - filesystem automatically on process exit (or crash). - -2011-03-30 Miklos Szeredi - - * Patches by Laszlo Papp fixing various issues found by the - Coverity checker - -2011-03-11 Miklos Szeredi - - * In case of failure to add to /etc/mtab don't umount. Reported - by Marc Deslauriers - -2011-02-02 Miklos Szeredi - - * libfuse: In fuse_session_loop_mt() don't pause when exiting the - worker threads. The pause() was added in 2.2.1 to prevent - segfault on pthread_cancel() on an exited, detached thread. Now - worker threads are not detached and pthread_cancel() should work - fine even after the thread exited. Reported by Boris Protopopov - -2011-01-31 Miklos Szeredi - - * fusermount: chdir to / before performing mount/umount - - * fusermount: only allow mount and umount if util-linux supports - --no-canonicalize - -2010-12-16 Miklos Szeredi - - * Highlevel lib: allow hash tables to shrink - - * Highlevel lib: add slab allocation for node cache. This will - allow the memory used by the filesystem to grow and shrink - depending on how many inodes are currently cached. - -2010-12-13 Miklos Szeredi - - * Highlevel lib: use dynamically resized hash table for looking up - by name and node ID. - -2010-12-07 Miklos Szeredi - - * Allow batching of forget requests. This allows forget requests - to be processed faster and doesn't require a modification to fuse - filesystems. Reported by Terje Malmedal - - * Add ->forget_multi() operation to the lowlevel API. The - filesystem may implement this to process multiple forget requests - in one call - - * Fix the ambiguity of ioctl ABI on the kernel/userspace boundary - for 32bit vs. 64bit userspace - -2010-11-10 Miklos Szeredi - - * Add new write_buf() method to the highlevel API. Similarly to - the lowlevel write_buf() method, this allows implementing zero - copy writes. - - * Add a new read_buf() method to the highlevel API. This allows - returning a generic buffer from the read method, which in turn - allows zero copy reads. - - * In fusexmp_fh implement the ->read_buf() and ->write_buf() - methods. Leave the ->read() and ->write() implementations for - reference, even though they are not necessary. - -2010-11-08 Miklos Szeredi - - * Fix check for read-only fs in mtab update - - * Open /dev/null for write instead of read for redirecting stdout - and stderr - - * If umount(8) supports --fake and --no-canonicalize (util-linux-ng - version 2.18 or later), and umount(2) supports the - UMOUNT_NOFOLLOW flag (linux kernel version 2.6.35 or later) then, - "fusermount -u" will call the umount(2) system call and use - "umount --fake ..." to update /etc/mtab - - * Added --disable-legacy-umount option to configure. This - disables the runtime checking of umount(8) version. When built - with this option then "fusermount -u" will fail if umount(8) - doesn't support the --fake and --no-canonicalize options. - - * Fix fuse_buf_copy() if already at the end of the buffers - - * Add new ->write_buf() method to low level interface. This - allows passig a generic buffer, either containing a memory buffer - or a file descriptor. This allows implementing zero copy writes. - - * Add fuse_session_receive_buf() and fuse_session_process_buf() - which may be used in event loop implementations to replace - fuse_chan_recv() and fuse_session_process() respectively. - - * Remove unnecessary restoring of current working directory in - "fusermount -u" - - * Add ctx->pid to debug output - - * Fix st_nlink value in high level lib if file is unlinked but - still open - - * libfuse: add store request. Request data to be stored in the - kernel buffers for a given inode. - - * libfuse: add retrieve request. Retrieve data stored in the - kernel buffers for a given inode. - -2010-10-14 Miklos Szeredi - - * Use LTLIBICONV when linking libfuse. This fixes building against - uclibc + libiconv. Patch by Natanael Copa - -2010-10-05 Miklos Szeredi - - * Add missing argument check in ulockmgr.c to prevent calling - ulockmgr_server with illegal arguments. This would cause an ever - growing list of ulockmgr_server processes with an endless list of - open files which finally exceeds the open file handle limit. - Patch by Markus Ammer - -2010-09-28 Miklos Szeredi - - * Fix ambiguous symbol version for fuse_chan_new. - fuse_versionscript included fuse_chan_new in both FUSE_2.4 and - FUSE_2.6. Remove the FUSE_2.4, which is invalid. - -2010-09-28 Miklos Szeredi - - * Fix option escaping for fusermount. If the "fsname=" option - contained a comma then the option parser in fusermount was - confused (Novell bugzilla #641480). Fix by escaping commas when - passing them over to fusermount. Reported by Jan Engelhardt - -2010-08-27 Miklos Szeredi - - * Add NetBSD support. Patch from Emmanuel Dreyfus - -2010-07-12 Miklos Szeredi - - * libfuse: add buffer interface. Add a generic buffer interface - for use with I/O. Buffer vectors are supplied and each buffer in - the vector may be a memory pointer or a file descriptor. - - * The fuse_reply_fd() interface is converted to using buffers. - -2010-06-23 Miklos Szeredi - - * Make the number of max background requests and congestion - threshold tunable. New options are "max_background" and - "congestion_threshold". Only effective on linux kernel versions - 2.6.32 or greater. Patch by Csaba Henk - -2010-06-17 Miklos Szeredi - - * Add fuse_reply_fd() reply function to the low level interface. - On linux version 2.6.35 or greater this will use splice() to move - data directly from a file descriptor to the fuse device without - needing to go though a userspace buffer. With the - FUSE_REPLY_FD_MOVE flag the kernel will attempt to move the data - directly into the filesystem's cache. On earlier kernels it will - fall back to an intermediate buffer. The options - "no_splice_write" and "no_splice_move" can be used to disable - splicing and moving respectively. - -2010-06-15 Miklos Szeredi - - * Fix out-of-source build. Patch by Jörg Faschingbauer - - * Add a "nopath" option and flag, indicating that path argument - need not be calculated for the following operations: read, write, - flush, release, fsync, readdir, releasedir, fsyncdir, ftruncate, - fgetattr, lock, ioctl and poll. - -2010-05-10 Miklos Szeredi - - * Remove "chmod root" from install of fusermount. Reported by - Lucas C. Villa Real - -2010-04-26 Miklos Szeredi - - * Released 2.8.4 - -2010-04-26 Miklos Szeredi - - * Fix checking for symlinks in umount from /tmp. Reported by Al - Viro - - * Fix umounting if /tmp is a symlink. Reported by Franco Broi - -2010-02-18 Miklos Szeredi - - * Fix definition of FUSE_OPT_END for C++. Reported by Tim - Bruylants - -2010-02-03 Miklos Szeredi - - * Fix stack alignment for clone() - -2010-02-01 Miklos Szeredi - - * Released 2.8.3 - -2010-02-01 Miklos Szeredi - - * Using "--no-canonicalize" with umount(8) conflicts with the race - fix, sinceit assumes the supplied path is absolute, while the race - fix relies on the path being relative to the current directory. - Reported by Tom Rindborg - -2010-01-26 Miklos Szeredi - - * Released 2.8.2 - -2010-01-21 Miklos Szeredi - - * Fix race if two "fusermount -u" instances are run in parallel. - Reported by Dan Rosenberg - - * Make sure that the path to be unmounted doesn't refer to a - symlink - -2010-01-14 Miklos Szeredi - - * Fix compile error on FreeBSD. Patch by Jay Sullivan - -2009-12-17 Miklos Szeredi - - * Use '--no-canonicalize' option of mount(8) (available in - util-linux-ng version 2.17 or greater) to avoid calling - readling(2) on the newly mounted filesystem before the mount - procedure is finished. This has caused a deadlock if "audit" was - enabled in the kernel. Also use '--no-canonicalize' for umount to - avoid touching the mounted filesystem. - -2009-09-11 Miklos Szeredi - - * Released 2.8.1 - -2009-08-25 Miklos Szeredi - - * Fix missing versioned symbol fuse_get_context@FUSE_2.2 - -2009-08-18 Miklos Szeredi - - * Released 2.8.0 - -2009-08-18 Miklos Szeredi - - * Add missing fuse_session_data to versionscript - - * Make sure all global symbols are prefixed with "fuse_" or "cuse_" - -2009-07-16 Miklos Szeredi - - * Clarify how the protocol version should be negotiated between - kernel and userspace. Notably libfuse didn't correctly handle the - case when the supported major versions didn't match - - * Add missing pthread link for libulockmgr. Patch by Petr Salinger - -2009-07-02 Miklos Szeredi - - * The context is extended with a 'umask' field. The umask is sent - for mknod, mkdir and create requests by linux kernel version - 2.6.31 or later, otherwise the umask is set to zero. Also - introduce a new feature flag: FUSE_CAP_DONT_MASK. If the kernel - supports this feature, then this flag will be set in conn->capable - in the ->init() method. If the filesystem sets this flag in in - conn->want, then the create modes will not be masked. - - * Add low level interfaces for lookup cache and attribute - invalidation. This feature is available in linux kernels 2.6.31 - or later. Patch by John Muir - - * Kernel interface version is now 7.12 - - * fusermount: Do not silently ignore command line arguments. - Patch by Sebastian Harl - -2009-06-19 Miklos Szeredi - - * Released 2.8.0-pre3 - -2009-06-19 Miklos Szeredi - - * Add fuse_getgroups (high level lib) and fuse_req_getgroups (low - level lib) functions to query the supplementary group IDs for the - current request. Currently this is implemented on Linux by - reading from the /proc filesystem. - -2009-06-18 Miklos Szeredi - - * Add "noforget" option to high level lib to prevent ESTALE errors - on NFS exported filesystems. This result in paths being cached - forever, resulting in ever growing memory usage. Use with care. - - * Add "no_remote_lock" option to disable remote file locking even - if the filesystem implements it. With this option locking - primitives (flock, lockf, fcntl(F_SETLK)) will still work, but - will ignore remotely locked files. - - * CUSE patches from Tejun Heo: - - * Unrestricted ioctl support left some debris. Clean them up: - o No reason to pass around pointer to flags. Pass flags directly. - o Clean up comment and prototype parameter names. - o fuse_lib_ioctl() didn't reply when get_path() failed. Fix it. - o Remove unused variables {in|out}_iov from fuse_lib_ioctl(). - - * Add fuse_reply_ioctl_iov() - - * Move fuse_session, fuse_req and fuse_ll definitions to fuse_i.h - and make send_reply_iov() and fuse_setup_common() global (also in - fuse_i.h). These will be used by CUSE support. - - * Restructure fuse_ll_process() - - * Implement libfuse side of CUSE support. CUSE uses subset of FUSE - operations as dir operations don't make sense for CUSE where one - instance implements single character device. - - CUSE support comes with its own cuse_lowevel_ops and related - initialization and helper functions. Except for initialization, it - usage is basically identical to FUSE. - - This patch also adds example/cusexmp.c which can create a character - device with name and device number specified on command line. The - created device itself is pretty boring. It's a bit bucket supporting - read, write and access via ioctl. - -2009-06-16 Miklos Szeredi - - * Add missing fuse_reply_bmap to versionscript. Debian - Bug#531329. Reported by Goswin Brederlow - -2009-05-27 Miklos Szeredi - - * Don't call forget_node() if the lookup was negative and write() - for the reply returned ENOENT. Reported by John Haxby - -2009-05-25 Miklos Szeredi - - * Add FUSE_CAP_EXPORT_SUPPORT to fuse_common.h - -2009-05-08 Miklos Szeredi - - * Fix missing newlines in some printfs - - * Fix 'make install-strip'. Reported by Dominick Layfield - -2009-01-05 Miklos Szeredi - - * Released 2.8.0-pre2 - -2008-12-08 Miklos Szeredi - - * Implement poll support. Patch by Tejun Heo - - * Add missing setattr flags to . - - * Only pass valid flags to ->setattr(). - -2008-12-05 Miklos Szeredi - - * Implement ioctl support. On high level interface only - "restricted" ioctls are supported (which are defined with the - _IO(), _IOR(), _IOW() or _IOWR() macros). Unrestricted ioctls - will only be allwed to CUSE (Character Device in Userspace) - servers. Patch by Tejun Heo - -2008-11-28 Miklos Szeredi - - * If open sets fi->nonseekable, libfuse will tell the kernel that - the file is not seekable. Patch by Tejun Heo - -2008-11-19 Miklos Szeredi - - * lowlevel lib: fix deadlock if fuse_reply_* is called from the - interrupt handling function. Reported by Tero Marttila - -2008-10-16 Miklos Szeredi - - * Allow commas in options to be escaped with a backslash - - * Add new function: fuse_opt_add_opt_escaped() - - * Add missing fuse_reply_bmap() to the version script - -2008-10-14 Miklos Szeredi - - * Pass current file flags to read and write operations - -2008-07-24 Miklos Szeredi - - * Clean up debug output in highlevel lib - -2008-07-10 Miklos Szeredi - - * Released 2.8.0-pre1 - -2008-06-27 Miklos Szeredi - - * Fix handling of (no)suid and (no)dev options if filesystem is - mounted from /etc/fstab or via mount(8). Reported by Jan Ondrej. - - * Skip calling mount(8) if /etc/mtab doesn't exist or if it's on a - read-only filesystem. This works around issues with certain mount - implementations. Reported by Szabolcs Szakacsits. - -2008-06-16 Miklos Szeredi - - * Remove fuse kernel module sources. Linux 2.6.27 will support - NFS exporting. - -2008-06-10 Miklos Szeredi - - * Fix theoretical infinite loops in libfuse. Reported by Szabolcs - Szakacsits - - * Fix missing include for PATH_MAX. Reported by - Szabolcs Szakacsits - -2008-05-23 Miklos Szeredi - - * Fix mounting over symlink. Reported by Szabolcs Szakacsits - -2008-05-09 Miklos Szeredi - - * Don't allow bigger than 4kB writes by default on 2.6.26 and - later kernels, so that filesystems not expecting this are not - broken on a kernel upgrade. Provide a 'big_writes' mount option - to enable this feature. In future API revisions this may become - the default. - -2008-04-09 Miklos Szeredi - - * Update warning message for missing newline at end of fuse.conf - - * Update debug message for successful operation to not include the - string "error:" - -2008-04-08 Miklos Szeredi - - * Update error message for missing mountpoint parameter. Reported - by Allen Pulsifer - -2008-04-04 Miklos Szeredi - - * Print library version information to debug output - - * Highlevel lib: don't limit paths to 4095 characters - -2008-03-25 Miklos Szeredi - - * Fix memory leaks on mount. Patch by Szabolcs Szakacsits - -2008-03-19 Miklos Szeredi - - * Fix missing pthread_mutex_destroy in error path of - fuse_lib_opendir(). Patch by Szabolcs Szakacsits - -2008-03-07 Miklos Szeredi - - * Add queuing on contention to per-node lock algorithm, to avoid - starvation. - - * Only enable cancelation when reading a request, otherwise - cancellation could happen with a mutex held, which could hang the - process on umount - -2008-02-08 Miklos Szeredi - - * Block SIGCHLD when executing mount and umount - - * fusexmp_fh: avoid unnecessary seeking in readdir - - * Update kernel interface to 7.9: - - * Support receiving file handle from kernel in GETATTR request - - * Allow operations with a NULL path argument, if the filesystem - supports it - - * Add support atomic open(O_TRUNC) - - * Support the st_blksize field in struct stat - - * If the "FUSE_THREAD_STACK" environment is set, initialize the - stack size of threads by this value. Patch by Florin Malita - - * Add per-node locking, instead of a global tree lock to protect - the path from changing during operations. Original patch by - Rodrigo Castro - -2008-02-03 Csaba Henk - - * lib/mount_bsd.c: - - string formatting fixes - - exit if mounting has failed - (in FreeBSD a mount failure is not critical per se, as the daemon - still could be mounted externally, but waiting for such an event - is more confusing than fruitful) - - ditch the kvm(8) stuff and simply use forced unmount which just - won't block - - prettify option specifications - - add "-onosync_unmount" kernel option - -2008-01-07 Csaba Henk - - * lib/mount_bsd.c: - - refine device closing in a race-free way - - add support for "-osubtype" on FreeBSD - - * makeconf.sh: make it work under FreeBSD - -2008-01-03 Csaba Henk - - * lib/mount_bsd.c: close device before unmount - (cf. lib/mount.c rev. 1.43) and fix some warnings - -2007-12-23 Miklos Szeredi - - * Fix './configure --disable-static'. Patch from Ismail Dönmez - -2007-12-17 Miklos Szeredi - - * Released 2.7.2 - -2007-12-12 Miklos Szeredi - - * Fix kernel module compile for 2.6.24 - - * Invalidate attributes of parent directory after create(), since - the modification time changes. Invalidate attributes on rename, - since some filesystems may update st_ctime. Reported by Szabolcs - Szakacsits - - * Fix NFS exporting to handle 64bit node IDs - - * Disable old symbol versions if __UCLIBC__ is defined. If a - symbol in a library has multiple versions, the runtime linker in - uClibc seems to randomly choose between them. - - * Remove erroneous 'fuse_opt_insert_arg@FUSE_2_5' from - fuse_version_script. fuse_opt_free_args() was added in fuse-2.6. - - * Close fuse device file descriptor before calling umount(), - preventing a deadlock when umount is synchronous. Reported by - Szabolcs Szakacsits - -2007-11-12 Miklos Szeredi - - * 'fusermount -u' did not umount the filesystem if /etc/mtab was a - symlink. This bug was introduced in 2.7.1 by "Don't call - /bin/[u]mount if /etc/mtab is a symlink". Found by robertsong. - -2007-10-16 Miklos Szeredi - - * Released 2.7.1 - -2007-10-16 Miklos Szeredi - - * Clarify licence version to be "LGPLv2" for the library - - * kernel fixes: - - * After mount set nlink attribute for the root inode to 1 - - * Fix wake up of task waiting for a reserved request - - * Fix allowing setattr, listxattr and statfs for other users - -2007-09-18 Miklos Szeredi - - * Add missing context initialization in fuse_fs_chmod(). Bug - found by "iohead" - - * Fix kernel module compilation for 2.6.23. Based on patch by - Marian Marinov - -2007-09-04 Philippe Elie - - * lib/fuse_lowlevel.c: fix a fuse_req leak in do_forget() - -2007-07-31 Miklos Szeredi - - * Work around hotplug issue, that it calls filesystem with file - descriptors 0, 1 and 2 not open. Tracked down by Leif Johnson - -2007-07-25 Miklos Szeredi - - * Don't call /bin/[u]mount if /etc/mtab is a symlink. Reported by - Tomas M - - * Also don't touch /etc/mtab if it is within the mounted - filesystem. Suggested by Jeffrey Law - -2007-07-12 Miklos Szeredi - - * Reset args->argc in fuse_opt_free_args(). Patch by Lucas - C. Villa Real - -2007-07-02 Miklos Szeredi - - * Released 2.7.0 - -2007-07-02 Miklos Szeredi - - * Accept a NULL "op" for fuse_main(), etc. This is useful if - filesystem is only invoking fuse to print a help message, or - version. Fixes RedHat bugzilla #217343 - -2007-06-22 Miklos Szeredi - - * lib: fix locking when loading a filesystem module - -2007-06-21 Miklos Szeredi - - * Add fs subtype support to mount.fuse - -2007-06-20 Miklos Szeredi - - * Add fs subtype support to libfuse and fusermount - -2007-06-19 Miklos Szeredi - - * kernel: sync with mainline (2.6.22) - -2007-06-18 Miklos Szeredi - - * Send debug output to stderr instead of stdout. Patch by Jan - Engelhardt - -2007-06-03 Miklos Szeredi - - * libulockmgr: Work around a kernel bug in recv(), causing it to - sometimes return zero even if data was available on the socket. - -2007-05-29 Miklos Szeredi - - * lib: optimization: store parent pointer in node instead of - parent id - -2007-05-25 Miklos Szeredi - - * lib: don't create new thread for each FORGET request. FORGET - messages sometimes caused so many threads to be created, that - process virtual memory space ran out. Reported by Chris AtLee - -2007-05-24 Miklos Szeredi - - * lib: fix memory leak on thread creation failure in multithreaded - event loop. Found by Chris AtLee - -2007-05-23 Miklos Szeredi - - * lowlevel lib: add fuse_reply_iov function, which is similar to - fuse_reply_buf, but accepts a vector of buffers. Patch by Roger - Willcocks - -2007-05-21 Miklos Szeredi - - * Fix Oops or error if a regular file is created with mknod(2) on - a fuse filesystem. Kernels 2.6.18 onward are affected. Thanks to - J. Cameijo Cerdeira for the report - -2007-05-11 Csaba Henk - - * libfuse: fix return value of fuse_loop()/fuse_loop_mt(). - Error reported by Csaba Henk, fix by Miklos Szeredi - - * libfuse: fix unlock in flush - - * libfuse: do unlocking on RELEASE+FLUSH - -2007-05-03 Miklos Szeredi - - * Released 2.7.0-rc1 - -2007-05-02 Miklos Szeredi - - * kernel: sync with mainline: - - * Use invalidate_mapping_pages() if available - - * Fix BUG when invalid file type is supplied in mount. Patch by - Timo Savola - -2007-04-27 Miklos Szeredi - - * libfuse: call umount(8) directly instead of fusermount if - possible - - * Clean up init script, make it LSB compliant - -2007-04-26 Miklos Szeredi - - * In multithreaded loop, use a semaphore instead of SIGHUP to wake - up the main thread on umount. This is more elegant, and works - even if signals are blocked. - -2007-04-25 Miklos Szeredi - - * Improve mounting support in libfuse: - - check non-empty mountpoint - - only fall back to fusermount when necessary - -2007-04-23 Miklos Szeredi - - * Don't chdir to "/" in foreground mode, it causes more trouble - than it's worth - -2007-04-18 Miklos Szeredi - - * Replace utils/mount.fuse "sh" script with a "C" program - -2007-04-15 Miklos Szeredi - - * Add -lulockmgr to compilation comment in fusexmp_fh.c - -2007-04-05 Miklos Szeredi - - * Check for iconv. Patch by Csaba Henk - - * Add direct umounting - - * Use "fusectl" as the device for the fusectl filesystem. Debian - Bug#417945. Reported by Laurent Bonnaud - -2007-04-01 Csaba Henk - - * Fix some FreeBSD related macros. - -2007-03-30 Miklos Szeredi - - * Add support for direct mounting by libfuse. Fall back on - calling fusermount if it doesn't work - -2007-03-14 Miklos Szeredi - - * Released 2.7.0-pre1 - -2007-03-05 Miklos Szeredi - - * Correctly handle O_APPEND in direct IO mode. Reported by Greg - Bruno - - * mount.fuse should use /bin/bash. Debian Bug#413403. Reported - by Thomas Weinbrenner - -2007-02-26 Miklos Szeredi - - * Fix detection of installed fuse in init script. Reported and - fix suggested by Davide Canova - -2007-02-05 Miklos Szeredi - - * Fix 2.6.9 RHEL kernels, which have compatibility mutex.h, but - don't define mutex_destroy(), bummer. Patch from Phil Schwan - -2007-02-04 Miklos Szeredi - - * Compile fuseblk for kernels which don't have an option to turn - off the block layer (CONFIG_BLOCK). Reported by Szakacsits - Szabolcs - -2007-02-03 Miklos Szeredi - - * Add filesystem stacking support to high level API. Filesystem - modules can be built into libfuse or loaded from shared object - (.so) files - - * Add 'subdir' and 'iconv' built in modules - - * lib/fuse.c: Fix locking for the reply code in create and open - -2007-02-02 Miklos Szeredi - - * kernel: make it compile on "strange" kernels which have emulated - mutexes via but no i_mutex. Reported by Tomasz - Mateja - -2007-01-28 Miklos Szeredi - - * kernel: fix BUG in control filesystem if it is umounted and - mounted again, while some fuse filesystems are present. - Bugreport from Florent Mertens - - * kernel: sync with mainline, support 2.6.20 - -2007-01-22 Miklos Szeredi - - * lib/Makefile.am: actually link libfuse against libfuse_libs - -2007-01-19 Miklos Szeredi - - * Build fix for 2.6.16 vanila and 2.6.15 FC5 kernels. Patch from - Ian Abbott - -2007-01-18 Miklos Szeredi - - * Fix abort in fuse_new() compatibility API for opts == NULL case. - Novell bugzilla #233870. Patch from Takashi Iwai. - -2007-01-13 Miklos Szeredi - - * Fix option parsing in mount.fuse. Patch from Jens M. Noedler - -2007-01-02 Miklos Szeredi - - * Fix unaligned access in file desctriptor passing in libfuse, - fusermount and ulockmgr. Debian bug ID: 404904. Reported and - tested by Sebastian Fontius - -2006-12-16 Miklos Szeredi - - * kernel: don't keep unreferenced inodes in the icache. - -2006-12-15 Miklos Szeredi - - * fusermount: Fix detection of fuseblk. Reported by Szakacsits - Szabolcs - - * lib: Fix use after free in fuse_flush(). Reported by Ron - Lindman - -2006-12-10 Miklos Szeredi - - * mount.fuse: add "setuid=USER" option which does a "su - USER" - for the filesystem - - * fusermount: use "/bin/mount -f" to add entry to /etc/mtab, and - "/bin/umount" to remove entry from /etc/mtab. This gets rid of - the ugly code dealing with mtab, as well as a possible race - between fusermount and mount trying to modify /etc/mtab at the - same time - - * Fix "buffer size too small: 4" warning for users of the - fuse_loop_mt_proc() function. - -2006-12-04 Miklos Szeredi - - * Fix warnings with gcc-4.1 on 64bit archs. Report from - Harshavardhana - - * Add extra warning options, and fix resulting warnings - - * Really fix fuse_teardown problem - -2006-12-02 Miklos Szeredi - - * Add -lrt to fuse.pc (if needed) to fix static linking against - libfuse. Reported by Szakacsits Szabolcs - -2006-12-01 Miklos Szeredi - - * Released 2.6.1 - -2006-11-30 Miklos Szeredi - - * Fix API version 21 and 22 compatibility for fuse_teardown. - Reported by Bgs - -2006-11-29 Miklos Szeredi - - * fusermount: Print a more helpful message in case the kernel - doesn't support the 'fuseblk' filesystem type. This has been - biting ntfs-3g users. Reported by Yura Pakhuchiy - - * kernel: fix build problem for "make -C ...". Reported by - Stephen Bryant - -2006-11-19 Miklos Szeredi - - * Fix bug in certain error paths of lookup routines. The request - object was reused for sending FORGET, which is illegal. This bug - could cause an Oops in linux-2.6.18 or in fuse-2.6.0, and might - silently corrupt memory in earlier versions. Report and test - program by Russ Cox - -2006-11-11 Miklos Szeredi - - * Print an error if an incompatible kernel interface version is - detected in INIT. This will only show if filesystem is started - with -d or -f - - * Fix order of fuse_destroy()/fuse_unmount() in error cleanup of - fuse_setup_common(). Reported by Szakacsits Szabolcs - -2006-11-06 Miklos Szeredi - - * Fix recursive locking in fuse_create(). Thanks to Takuya - Ishibashi for the bug report - -2006-10-28 Miklos Szeredi - - * Fix automake problem. Patch from Nix - -2006-10-26 Miklos Szeredi - - * Fix mount.fuse to use /bin/sh instead of /bin/bash, which is not - always available on embedded systems. Patch from Paul Smith - - * Fix util/Makefile.am, so that failure to run update-rc.d or - device creation doesn't cause make to fail. Reported by Paul - Smith - -2006-10-21 Miklos Szeredi - - * Released 2.6.0 - -2006-10-18 Miklos Szeredi - - * fusermount: don't try to create a lock file if /etc/mtab is a - symlink. Report and patch from Alexei Sheplyakov (debian bug - #393693) - -2006-10-17 Miklos Szeredi - - * Minor changes, sync with mainline tree - -2006-10-16 Miklos Szeredi - - * Released 2.6.0-rc3 - -2006-10-15 Miklos Szeredi - - * kernel: cleanups - -2006-10-13 Miklos Szeredi - - * kernel: Fix compilation on patched 2.6.18 (fc6) and 2.6.19. - Report from David Shaw - - * lib: Fix lost error on renaming a file. Report from David Shaw - - * lib: Fix lost error on hiding open files (renaming to - .fuse_hiddenXXXX) - - * kernel: Fix a rare hang on SMP/32bit on heavy filesystem - activity. The cause of the bug was that some calls to - i_size_write() were not protected by a lock, and hence - i_size_seqcount could become corrupted. This caused subsequent - calls to i_size_read() to spin forever. This is a long standing - bug was probably introduced in version 2.2, and thought to be - related to NFS exporting (it's not). It was reported by various - people, but Dana Henriksen has finally helped me to track it down, - so big thanks to him - - * kernel: Protect against truncation of a swapfile - -2006-10-10 Miklos Szeredi - - * kernel: Check for signature of super_operations->umount_begin(). - Ubuntu kernel 2.6.17 seems to use the new signature found in - 2.6.18. Thanks to Florent Mertens for the report - -2006-10-08 Miklos Szeredi - - * Make sure inode numers wrap around at 2^32. This is needed on - dual 64bit/32bit architectures, because 32bit applications using - the non-largefile interface would otherwise break (EOVERFLOW error - would be returned by the stat() system call family) - - * ulockmgr: handle the case, when a locking operation fails - because no more file desctriptors are available in - ulockmgr_server. Also work around a Linux kernel bug (known to - exist for all Linux kernel versions <= 2.6.18) which may cause - sent file descriptors to be lost in the above case - - * ulockmgr: optimize file descriptor use - - * restore needed cpp flags to util/Makefile.am - - * Install udev rules as 99-fuse.rules instead of 60-fuse.rules - - * Minor clean up of udev rules - - * Add a synchronous DESTROY message to kernel interface. This is - invoked from umount, when the final instance of the filesystem is - released. It is only sent for filesystems mounted with the - 'blkdev' option for security reasons. - - * If the DESTROY message is received, call the filesystem's - ->destroy() method. In this case it's not called from session - destruction as it would be otherwise. - -2006-10-01 Miklos Szeredi - - * Released 2.6.0-rc2 - -2006-10-01 Miklos Szeredi - - * Add support for FLUSH+RELEASE operation for FreeBSD. Original - patch by Csaba Henk - - * Add init script to insert fuse module and mount the control - filesystem. The script is installed as /etc/init.d/fuse and on - debian based systems (where update-rc.d is available) symlinks - from /etc/rc*.d/ are also installed. - - * Include '#define FUSE_USE_VERSION=XX' into examples so they - become more self contained. - -2006-09-30 Miklos Szeredi - - * API changes: - - * Move lock_owner from a separate argument into fuse_file_info - - * Add a flag to fuse_file_info indicating (1) a highlevel lock - operation (unlock all) was initiated by a flush, (2) a lowlevel - release operation should perform a flush as well. - - * fusermount: revert modprobe change (2006-08-18) since it - doesn't work reliably with udev - - * Add support for block device backed filesystems. This mode is - selected with the 'blkdev' option, which is privileged. - - * Add support for the bmap (FIBMAP ioctl) operation on block - device backed filesystems. This allows swapon and lilo to work on - such filesystems. - - * kernel changes: - - * Drop support for kernels earlier than 2.6.9. Kernel module from - previous (2.5.x) release can be used with library from this - release - - * In fuse_dentry_revalidate() use dget_parent() instead of - dereferencing d_parent, since there's no protection against parent - changing and going away - - * Protect nlookup from concurrent updates - - * In lookup if a directory alias exists but is unused, - then get rid of it, otherwise return -EBUSY. - - * In mkdir if a directory alias exists, return success, but leave - dentry negative. In reality this could happen if a remote rename - immediately followed the mkdir. - - * Don't BUG in fuse_iget() if multiple retries are needed to get a - good inode. This could happen if several lookups are racing for - the same inode. - -2006-09-29 Miklos Szeredi - - * Fix compilation on 2.6.9. Report from Troy Ayers - -2006-09-27 Miklos Szeredi - - * Fix Oops in fuse_readpages(). Reported by David Shaw - -2006-09-24 Csaba Henk - - * Add support for nanosec times on FreeBSD - - * Fix FreeBSD compatibility issues - -2006-09-23 Miklos Szeredi - - * Fix one more compatibility bug. Thanks to Ricardo Correia - - * Fix utimens compilation with uClibc. Patch from Jamie Guinan - -2006-09-22 Miklos Szeredi - - * Fixed several compatibility bugs in low level interface. - Reported by Ricardo Correia - - * Add workaround for ARM caching bug - -2006-09-16 Miklos Szeredi - - * Rename new utimes() method to more logical utimens() - -2006-09-14 Miklos Szeredi - - * Fuse tried to unlink already unlinked hidden files. Bug - reported by Milan Svoboda - -2006-09-10 Miklos Szeredi - - * Released 2.6.0-rc1 - -2006-09-10 Miklos Szeredi - - * kernel: Fix unlock on close for kernels < 2.6.18 - - * Add ulockmgr library & server. This can be used for handling - file locking requests either directly from libfuse or over a - network, etc. This first version is not optimized and the number - of file descriptors it uses may get out of hand - -2006-09-07 Miklos Szeredi - - * lib: Add interrupt support to high level library, which may be - enabled with the 'intr' mount option. - - * When an operation is interrupted the thread handling that - operation will receive SIGUSR1 (or other signal specified with the - 'intr_signal=N' option). The library installs a no-op signal - handler for this signal, unless there's already a handler - installed. - - * The filesystem may query interrupt status (regardless of 'intr') - with the fuse_interrupted() function. - - * mount.fuse: initialize $HOME if not set. Report from Sven Goldt - -2006-09-03 Miklos Szeredi - - * lib: Multithreaded loop now allows unlimited number of threads. - This is needed for locking operations which may block - indefinitely. Also the kernel now doesn't limit the number of - outstanding requests so the library shouldn't do so either. - -2006-09-01 Miklos Szeredi - - * Fix recursive lock bug in interrupt handling - - * Add utimes() method to highlevel interface, which supports - setting times with nanosecond resolution - -2006-08-18 Miklos Szeredi - - * kernel: fix page leak if fuse_readpages() failed in it's - initialization. Bug found and original patch from Alexander - Zarochentsev - - * For linux kernels >=2.6.18 (2.6.19 if using the fuse module from - the kernel tree) the statfs method will receive the path within - the filesystem on which the stat(v)fs syscall was called - - * fusermount: try to modprobe fuse module if invoked by root and - unable to open device. This is needed with udev, since the device - node will be created only when the module is inserted, hence - module autoloading won't work. Reported by Szakacsits Szabolcs - -2006-07-30 Miklos Szeredi - - * fusermount: if selinux is active, restore the original file's - security context in unmount_rename(). Redhat bugzilla id 188561. - Patch from Yves Perrenoud - - * Add POSIX file locking operation to high level library - - * Initialize context for unlink of hidden files on umount. Bug - reported by Tim Stoakes - -2006-07-14 Miklos Szeredi - - * Multiple release() calls can race with each other, resulting in - the hidden file being deleted before the last release finishes. - Bug found and patch tested by Mark Huijgen - -2006-07-05 Miklos Szeredi - - * fusermount: if /dev/fuse doesn't exist, suggest modprobing fuse; - this makes sense on systems using udev. Reported by Szakacsits - Szabolcs - -2006-06-29 Miklos Szeredi - - * Released 2.6.0-pre3 - -2006-06-29 Miklos Szeredi - - * Support in kernel module for file locking and interruption. The - same functionality is available in official kernels >= 2.6.18 - -2006-06-28 Miklos Szeredi - - * Add POSIX file locking support - - * Add request interruption - -2006-06-06 Miklos Szeredi - - * Add missing pthread_rwlock_destroy(). Patch from Remy Blank - -2006-06-05 Remy Blank - - * lib: canonicalize mount point in fuse_helper_opt_proc() so that - unmounting succeeds even if mount point was relative. - -2006-06-04 Csaba Henk - - * lib: fix emergency umount in helper.c when malloc fails. - (The way it was done would end up in a segfault.) - -2006-06-01 Csaba Henk - - * lib: adjust threading related compiler flags. - Switch to "-pthread" from "-lpthread" as that's the preferred - one on several platforms. Consulted with Terrence Cole and - Miklos Szeredi - -2006-05-08 Miklos Szeredi - - * lib: search fusermount in installation directory (bindir) as - well as in PATH. - -2006-05-03 Miklos Szeredi - - * lib: fix compilation if CLOCK_MONOTONIC is not defined. - Reported by Christian Magnusson - -2006-04-23 Csaba Henk - - * lib: make FreeBSD mount routine recognize if kernel features - backgrounded init and if it does, run the mount util in foreground - (similarly to Linux) - -2006-04-21 Miklos Szeredi - - * kernel: fix fput deadlock fix, the lockless solution could lead - to "VFS: busy inodes after umount..." - - * kernel: fix race between checking and setting file->private_data - for the device. Found by Al Viro - -2006-04-11 Miklos Szeredi - - * kernel: remove request pool, instead allocate requests on - demand. Account the number of background requests, and if they go - over a limit, block the allocation of new requests. - - * kernel: fix deadlock if backgrounded request holds the last - reference to the super block - - * kernel: don't use fuse_reset_request() during direct I/O - -2006-04-06 Csaba Henk - - * lib: Let FreeBSD mount option parsing routine recognize "no" - prefixes for FUSE specific options as well - -2006-04-01 Miklos Szeredi - - * lib: Add missing rwlock initialization. Patch by Ryan Bradetich - -2006-03-17 Miklos Szeredi - - * API changes: - - * fuse_main(), fuse_setup() and fuse_new() have an additionl - user_data parameter - - * fuse_mount() returns a 'struct fuse_chan' pointer instead of a - file descriptor - - * fuse_unmount() receives a 'struct fuse_chan' pointer. It - destroys the given channel - - * fuse_teardown() no longer has a file descriptor parameter - - * new exported functions: fuse_session_remove_chan(), - fuse_get_session(), fuse_daemonize() - - * fuse_chan_recv() may now return a new channel which will be used - to send the reply - -2006-03-16 Miklos Szeredi - - * Released 2.6.0-pre2 - -2006-03-16 Miklos Szeredi - - * Don't unmount if already unmounted. This fixes a problem seen - in the following situation: Lazy unmount a busy filesystem; Mount - a new one in top; When the first finally unmounts, the second also - unmounts. Reported by Franco Broi - -2006-03-15 Miklos Szeredi - - * lowlevel lib: use indirect function calls instead of a - switch/case construct. Besides increased efficiency it helps - maintainability & readability too. Patch from Florin Malita - -2006-03-13 Miklos Szeredi - - * kernel: replace global spinlock with a per-connection spinlock - -2006-03-10 Miklos Szeredi - - * Fix source compatibility breakage for fuse_unmount(). Report - from Yura Pakhuchiy - -2006-03-02 Miklos Szeredi - - * Fix O_ASYNC handling in fuse_dev_release(). From Jeff Dike - -2006-03-01 Miklos Szeredi - - * Add O_ASYNC and O_NONBLOCK support to FUSE device. Patch by - Jeff Dike - - * Renamed fuse_chan_receive() to fuse_chan_recv() and changed - interface to return -errno in case of error. - -2006-03-01 Csaba Henk - - * libfuse: pass device file descriptor to fuse_unmount(), rewrite - FreeBSD implementation so that it uses libc (sysctl backed) instead - of an embdedded script (kmem backed). Adjust the control flow of - hello_ll so that device doesn't get closed before unmount attempt. - -2006-02-25 Miklos Szeredi - - * Lowlevel lib: return all-zero statvfs data if filesystem doesn't - implement method. This is needed on FreeBSD, and nicer on Linux - too. Highlevel lib already did this. Reported by Csaba Henk - - * Fix negative entry handling. There was a bug, that negative - lookups with timeouts (nodeid == 0) returned -EIO. - -2006-02-23 Miklos Szeredi - - * Fix race between RELEASE and UNLINK, which might leave - .fuse_hidden* files around - -2006-02-21 Miklos Szeredi - - * fusexmp_fh: implement flush() method and call close() on the - open file descriptor. This is needed if used on an NFS - filesystem, which buffers data until file is closed. Franco Broi - spotted the situation when 'cp -p' failed to set the modification - time because of this. - -2006-02-20 Miklos Szeredi - - * Released 2.6.0-pre1 - -2006-02-19 Miklos Szeredi - - * libfuse: fix use-after-free bug in interruptred reply_entry(). - Patch from John Muir - - * libfuse: fix wrong symbol versioning for fuse_mount. Debian bug - ID: 352631. Found by Stéphane Rosi - -2006-02-17 Miklos Szeredi - - * Lowlevel lib: Unify fuse_dirent_size() and fuse_add_dirent() - into a single function fuse_add_direntry(). This cleans up the - interface and makes it possible to do stacking. - -2006-02-16 Miklos Szeredi - - * Fix rare race betweeen abort and release caused by failed iget() - in fuse_create_open(). - - * Add 'ac_attr_timeout' option e.g. for filesystems which do their - own attribute caching. - -2006-02-15 Miklos Szeredi - - * Work around FreeBSD runtime linker "feature" which binds an old - version of a symbol to internal references if the symbol has more - than one version. This resulted in infinite recursion in - fuse_lowlevel_new_compat25(). - -2006-02-10 Csaba Henk - - * Refine clock_gettime() querying so that linker options - shall be set as it's appropriate for the target platform. - -2006-02-09 Miklos Szeredi - - * Fix udev rule syntax. Reported by Nix - -2006-02-08 Miklos Szeredi - - * In some cases udev rule seems to be ineffective when installed - as 40-fuse.rules but work as 60-fuse.rules. Reported by John Hunt - -2006-02-03 Miklos Szeredi - - * Fix compilation when build directory is different from source - directory. Reported by Frédéric L. W. Meunier - -2006-02-02 Miklos Szeredi - - * Fix even bigger bug introduced in fix for request_end() on - 2006-01-14. Reported by Gal Rosen - -2006-01-30 Miklos Szeredi - - * highlevel-lib: add 'auto_cache' option. This caches file data - based on modification time and size - -2006-01-20 Miklos Szeredi - - * Sanitize storage type and help message in mount_bsd.c. Patch - from Csaba Henk - - * fuse_opt: add new helper constants FUSE_OPT_KEY_KEEP and - FUSE_OPT_KEY_DISCARD - - * Add options 'max_readahead', 'sync_read' and 'async_read' - - * Kernel ABI version 7.6: - - * Negotiate the 'max_readahead' value and 'async_read' flags with - userspace in the INIT method - - * Add connection info to ->init() methods to both lowlevel and - highlevel API - - * Fall back to synchronous read() behavior if either library or - userspace filesystem is using the old interface version. This is - needed so non-updated filesystems won't be confused by the - different read() behavior - -2006-01-19 Miklos Szeredi - - * lib: if "fsname=" option was given, pass it to fusermount - - * fuse_opt: add new fuse_opt_insert_arg() function, which is - needed by filesystems to implement some argument manipulations - correctly - - * fuse_opt: fix memory leak in handling "--" option - -2006-01-18 Miklos Szeredi - - * kernel: fix detection of case when fuse is not configured into - the kernel either as module or built-in - - * fuse_opt.h: fix incompatibility with C++ compilers by renaming - 'template' structure member to 'templ'. Reported by Takashi Iwai - - * fuse.h: fix compatibility bugs. Patch by Yura Pakhuchiy - - * kernel: support version 2.6.16 (i_sem -> i_mutex) - -2006-01-16 Miklos Szeredi - - * Added (again) asynchronous readpages support - - * Each connection now shows up under /sys/fs/fuse/connections - - * Connection attributes exported to sysfs: 'waiting' number of - waiting requests; 'abort' abort the connection - - * Connection may be aborted through either the sysfs interface or - with 'umount -f mountpoint' - -2006-01-14 Miklos Szeredi - - * Released 2.5.0 - -2006-01-14 Miklos Szeredi - - * kernel: fix a couple of bugs - - * Order of request_end() and fuse_copy_finish() was wrong. - Posthumous note: Franco Broi managed to exploit this, though it - seemed quite impossible - - * request_end() used request pointer after decrementing refcount - - * Clearing ->connected or ->mounted connection flags could race - with setting other bitfields not protected with a lock - -2006-01-10 Miklos Szeredi - - * kernel: add necessary compile flags for 2.4.X/x86_64. - Report from Sean Ziegeler - -2006-01-09 Miklos Szeredi - - * Released 2.5.0-pre2 - -2006-01-09 Miklos Szeredi - - * Applied patch from Csaba Henk, to update mount_bsd to new - fuse_mount() semantics - - * Ignore auto,noauto,... options in mount.fuse. Reported by Frank - Steiner and Don Taber - - * fusermount: add 'dirsync' mount option - -2006-01-07 Miklos Szeredi - - * Improved help reporting and added version reporting to library - -2006-01-06 Miklos Szeredi - - * Change working directory to "/" even if running in the - foreground. Patch from Jonathan Brandmeyer - - * Changed lots of functions to use 'struct fuse_args' instead of - separate argc and argv - - * Added fuse_parse_cmdline(), fuse_set_signal_handlers() and - fuse_remove_signal_handlers() functions, so that it's now pretty - easy to get all the functionality of fuse_main() with a filesystem - using the lowlevel API. - -2006-01-02 Miklos Szeredi - - * mount.fuse: the 'user' option should be ignored. Report and - solution from Mattd. - - * mount.fuse: export PATH in the right place. Report and patch - from Hannes Schweizer - -2005-12-16 Miklos Szeredi - - * Clean up the option parsing interface slightly, by creating an - "argument list" structure, that contains the argument vector and - count - -2005-12-15 Miklos Szeredi - - * fusermount: check if /mnt/mtab is a symlink and don't modify it - in that case - - * kernel: simplify request size limiting. INIT only contains - maximum write size, maximum path component size remains fixed at - 1024 bytes, and maximum xattr size depends on read buffer. - -2005-12-14 Miklos Szeredi - - * Fix readdir() failure on x86_64, of 32bit programs compiled - without largefile support. Bug report and help from Anthony - Kolasny - - * If lookup returns invalid mode, return -EIO instead of creating - a regular file - - * Add current output argument vector to option processing - function - -2005-12-12 Miklos Szeredi - - * Fix stale code in ifdef FreeBSD. Patch from Csaba Henk - -2005-12-09 Miklos Szeredi - - * Released 2.5.0-pre1 - -2005-12-09 Miklos Szeredi - - * libfuse: added option parsing interface, defined in - . - -2005-12-07 Miklos Szeredi - - * Return EIO for file operations (read, write, fsync, flush) on - open files whose inode has become "bad". Inodes will be marked - "bad" if their type changes. Bug report by Csaba Henk - -2005-12-06 Miklos Szeredi - - * Use bigger request buffer size. write() did not work on archs - with > 4k page size, Bug report by Mark Haney - - * ABI version 7.5: - - * Extend INIT reply with data size limits - -2005-12-02 Miklos Szeredi - - * Fix memory leak in fuse_read_cmd()/fuse_process_cmd(). Bug - reported by Vincenzo Ciancia - - * Handle exit-by-umount in fuse_read_cmd() - -2005-11-29 Miklos Szeredi - - * Check if '-msoft-float' option is supported by compiler when - configuring for a 2.4.x kernel. Bug report by Mark Haney - - * In multithreaded loop send a TERM signal to the main thread if - one of the other threads exit. Needed on FreeBSD for a clean exit - on umount. Should not cause any harm on Linux either - -2005-11-28 Miklos Szeredi - - * Fix bug in 32-bit file handle compatibility - -2005-11-27 Miklos Szeredi - - * Block TERM, INT, HUP and QUIT signals in all but the main - thread. According to POSIX it's not specified which thread will - receive these signals. - - * Kernel changes: - - * Check for directory aliasing on mkdir, not just on lookup - - * Check for special node ID values in create+open operation - - * Sync with -mm: readv, writev, aio_read and aio_write methods - added to file operations - - * Cleanups: lookup code, page offset calculation - - * ABI stepped to 7.4, changes: - - * frsize member added to fuse_kstatfs structure - - * added support for negative entry caching: on lowlevel API if - fuse_entry_param::ino is set to zero in reply to a lookup request, - the kernel will cache the dentry for the specified amount of time. - - * libfuse: added 'negative_timeout' option: specifies how much - negative entries should be cached. Default is zero, to be - compatible with prior versions - -2005-11-22 Miklos Szeredi - - * Add detection of mainline FUSE code in running kernel - -2005-11-21 Miklos Szeredi - - * Don't use async cancelation in multithreaded loop. This makes - it more portable to systems where read() is not async cancel safe. - Report from Andriy Gapon - -2005-11-20 Miklos Szeredi - - * Warn if API version 11 compatibility is requested - -2005-11-17 Miklos Szeredi - - * More FreeBSD merge - - * fusermount: don't allow mountpoints with '\n', '\t', or '\\' in - them, because it corrupts /etc/mtab. Found by Thomas Biege - CVE-2005-3531 - - * libfuse: don't use system() to invoke 'fusermount -u ...' - because it breaks mountpoints with spaces in them into multiple - arguments - -2005-11-16 Miklos Szeredi - - * Merge library part of FreeBSD port. Patch by Csaba Henk - -2005-11-11 Miklos Szeredi - - * Use 64bit type for file handle, so the full range supported by - the kernel interface is available to applications - -2005-11-10 Miklos Szeredi - - * Moved mountpoint argument checking from fuse_parse_cmdline() to - fuse_mount() in preparation to FreeBSD merge. - -2005-11-08 Miklos Szeredi - - * Remove unneeded close() from fuse_teardown(). Spotted by Csaba - Henk. - -2005-11-07 Miklos Szeredi - - * Make the statfs change backwards compatible. - -2005-11-06 Miklos Szeredi - - * Change ->statfs() method to use 'struct statvfs' instead of - 'struct statfs'. This makes the API more portable since statvfs() - is defined by POSIX. - -2005-10-28 Miklos Szeredi - - * Add fgetattr() method, which currently will only be called after - a successful call to a create() method. - -2005-10-26 Miklos Szeredi - - * Change kernel ABI version to 7.3 - - * Add ACCESS operation. This is called from the access() system - call if 'default_permissions' mount option is not given, and is - not called on kernels 2.4.* - - * Add atomic CREATE+OPEN operation. This will only work with - 2.6.15 (presumably) or later Linux kernels. - - * Add ftruncate() method. This will only work with 2.6.15 - (presumably) or later Linux kernels. - - * Fix kernel module compile if kernel source and build directories - differ. Report and initial patch by John Eastman - -2005-10-18 Miklos Szeredi - - * lib: optimize buffer reallocation in fill_dir. - -2005-10-17 Miklos Szeredi - - * Released 2.4.1 - -2005-10-14 Miklos Szeredi - - * libfuse: add debug for write result (by Shaun Jackman) and - warnings for too large read/write result - -2005-10-11 Miklos Szeredi - - * Spelling fixes, thanks to Ioannis Barkas - -2005-10-10 Miklos Szeredi - - * fuse_common.h: use extern "C". Thanks to Valient Gough for the - patch - -2005-10-07 Miklos Szeredi - - * highlevel-lib: init() and destroy() methods didn't have an - initialized fuse_context. Bug reported by Tim Stoakes - -2005-10-04 Miklos Szeredi - - * Released 2.4.0 - -2005-10-03 Miklos Szeredi - - * Add documentation to fuse_lowlevel.h - - * API cleanups: - - * Remove definitions of unused FATTR_CTIME / FUSE_SET_ATTR_CTIME - - * Move fuse_mount() and fuse_unmount() to fuse_common.h - - * Change the return type of fuse_reply_none() from int to void. - -2005-09-30 Miklos Szeredi - - * kernel: NFS exporting leaked dentries. Bug found and fixed by - Akshat Aranya. - -2005-09-29 Miklos Szeredi - - * fusermount: fix error message, when unable to open /dev/fuse. - Report by Balázs Pozsár - -2005-09-28 Miklos Szeredi - - * UClibc fixes from Christian Magnusson - -2005-09-27 Miklos Szeredi - - * Added NAME="%k" to util/udev.rules. Fix by Mattias Wadman. - -2005-09-26 Miklos Szeredi - - * Released 2.4.0-rc1 - -2005-09-26 Miklos Szeredi - - * fusermount: allow user umount in the case when /etc/mtab is a - symlink to /proc/mounts. Reported by Balázs Pozsár. - -2005-09-23 Miklos Szeredi - - * Check for special node ID values in lookup and creation - -2005-09-22 Miklos Szeredi - - * Slight optimization in returning EINVAL error in case of an open - with O_DIRECT flag. - -2005-09-20 Miklos Szeredi - - * Remove '--enable-auto-modprobe' configure flag. Module - auto-loading is now handled by the kernel. - -2005-09-15 Miklos Szeredi - - * Install UDEV rule file, so /dev/fuse is created with mode 0666. - Help from Jens M. Noedler. - -2005-09-14 Miklos Szeredi - - * Add memory cleanup on thread exit - -2005-09-13 Miklos Szeredi - - * Set umask to zero in fusexmp and fusexmp_fh, so that - files/directories are created with the requested mode. - -2005-09-12 Miklos Szeredi - - * Don't ignore read error in multithreaded loop - -2005-09-08 Miklos Szeredi - - * Released 2.4.0-pre2 - -2005-09-08 Miklos Szeredi - - * Revert lock and access operations. Postpone these until 2.5. - -2005-09-02 Miklos Szeredi - - * Fix compile warning on 2.6.13 and later - - * Fix compilation on old kernels - -2005-08-19 Miklos Szeredi - - * lib: always refresh directory contents after rewinddir() to - conform to SUS. Bug found by John Muir. - -2005-08-15 Miklos Szeredi - - * Released 2.4.0-pre1 - -2005-08-14 Miklos Szeredi - - * lib: cleaned up (or messed up, depending on your POV) the low - level library API. Hopefully this is close to the final form. - -2005-08-05 Miklos Szeredi - - * fusermount: don't allow empty mountpoint argument, which defeats - automatic umounting in fuse_main(). Bugreport by Václav Jůza - -2005-08-03 Miklos Szeredi - - * fix warnings in fuse.h and fuse_lowlevel.h if -Wshadow compiler - option is used (Paul Alfille). - -2005-08-02 Miklos Szeredi - - * highlevel-lib: added mount options "attr_timeout" and - "entry_timeout". These options control the length of time file - attributes and entries (names) are cached. Both default to 1.0 - second. - - * kernel: correctly handle zero timeout for attributes and entries - -2005-08-01 Miklos Szeredi - - * Added missing symbols to versionscript (Joshua J. Berry) - - * kernel: implement two flags, open can set: 'direct_io' and - 'keep_cache'. These correspond exactly to mount options - 'direct_io' and 'kernel_cache', but allow a per-open setting. - - * Move 'direct_io' and 'kernel_cache' mount option handling to - userspace. For both mount options, if the option is given, then - the respective open flag is set, otherwise the open flag is left - unmodified (so the filesystem can set it). - - * lib (highlevel): make open method optional - -2005-07-28 Miklos Szeredi - - * kernel: invalidate attributes for read/readdir/readlink - operations - - * kernel: detect newer UML kernels - -2005-07-26 Miklos Szeredi - - * Make the installation path of fuse.ko and mount.fuse - configurable through INSTALL_MOD_PATH and MOUNT_FUSE_PATH - environment variables. Requirement and help from Csaba Henk. - -2005-07-22 Miklos Szeredi - - * Fix bug, that causes filesystem requests to hang when unique - request counter becomes negative. This happens after - 2,147,483,648 operations, so most people won't care. Thanks to - Franco Broi for the report and testing. - -2005-07-21 Miklos Szeredi - - * Don't change mtime/ctime/atime to local time on read/write. - Bug reported by Ben Grimm - - * Install fuse_common.h and fuse_lowlevel.h. Report by Christian - Magnusson - - * fusermount: use getopt_long() for option parsing. It allows the - use of '--' to stop argument scanning, so fusermount can now - operate on directories whose names begin with a '-'. Patch by - Adam Connell - -2005-07-15 Miklos Szeredi - - * fusermount: add '-v', '--version' and '--help' options - - * add inode based API - -2005-07-12 Miklos Szeredi - - * lib: don't block signals in worker threads. Problem noticed by - Usarin Heininga - -2005-07-07 Miklos Szeredi - - * lib: don't allow both 'allow_other' and 'allow_root' options to - be given - -2005-07-06 Miklos Szeredi - - * fusermount: check if mountpoint is empty (only '.' and '..' for - directories, and size = 0 for regular files). If "nonempty" - option is given, omit this check. This is useful, so users don't - accidentally hide data (e.g. from backup programs). Thanks to - Frank van Maarseveen for pointing this out. - - * kernel: check if mandatory mount options ('fd', 'rootmode', - 'user_id', 'group_id') are all given - - * lib: simplify 'readdir_ino' handling - - * lib: add mount options 'umask=M', 'uid=N', 'gid=N' - -2005-07-03 Miklos Szeredi - - * kernel: clean up 'direct_io' code - -2005-06-28 Miklos Szeredi - - * Add 'mount.fuse' written by Petr Klima - - * '/dev/fuse' is created by 'make install' if does not yet exist - -2005-06-20 Miklos Szeredi - - * Fix UCLIBC compile error. Patch by Christian Magnusson - -2005-06-08 Miklos Szeredi - - * Enable the auto-loading of the module via access to the - corresponding device file. Patch by Takashi Iwai. - - * Allow mounting a regular file (over a regular file) for - unprivleged users. - - * Do not create temporary device file. Require "/dev/fuse" to - exist, and be readable/writable by the mounting user. - -2005-06-02 Miklos Szeredi - - * Released 2.3.0 - -2005-06-02 Miklos Szeredi - - * Fix serious information leak: if the filesystem returns a short - byte count to a read request, and there are non-zero number of - pages which are not filled at all, these pages will not be zeroed. - Hence the user can read out previous memory contents. Found by - Sven Tantau. - -2005-05-27 Miklos Szeredi - - * Add "readdir_ino" mount option, which tries to fill in the d_ino - field in struct dirent. This mount option is ignored if "use_ino" - is used. It helps some programs (e.g. 'pwd' used over NFS from a - non-Linux OS). Patch by David Shaw. - -2005-05-12 Miklos Szeredi - - * Released 2.3-rc1 - -2005-05-12 Miklos Szeredi - - * File save in krusader and other editors doesn't work with sshfs, - because open() is interrupted by a periodic signal, and open() - restarts forever, without any progress. This could just be fixed - in open(), but the problem is more generic: if signals are - received more often than the filesystem can get the request to - userspace, it will never finish. This is probably only a - theoretical problem, nevertheless I'm removing the possibility to - interrupt requests with anything other than SIGKILL, even before - being sent to userspace. Bugreport by Eduard Czimbalmos. - -2005-05-09 Miklos Szeredi - - * libfuse: add "tree_lock" rwlock, that is locked for write in - rename, unlink and rmdir, and locked for read in all other - operations. This should fix the rename/release race reported by - Valient Gough and others. The solution is very coarse, a finer - grained locking scheme could be implemented, but it would be much - more complex. Let's see whether this is good enough. - -2005-05-09 Miklos Szeredi - - * Released 2.3-pre7 - -2005-05-08 Miklos Szeredi - - * Better fix for out of order FORGET messages. Now the - LOOKUP/FORGET messages are balanced exactly (one FORGET can - balance many lookups), so the order no longer matters. This - changes the kernel ABI slightly, but the library remains backward - compatible. - -2005-05-06 Miklos Szeredi - - * Fix abort for out of order FORGET messages. Again. Spotted by - Franco Broi again. Sorry :) - -2005-04-29 Miklos Szeredi - - * Released 2.3-pre6 - -2005-04-29 Miklos Szeredi - - * Make fusermount work with fuse kernel modules not yet supporting - the "group_id" option (added for the purpose of stricter - permission checking). - -2005-04-28 Miklos Szeredi - - * Check for hard-linked directories in lookup. This could cause - problems in the VFS, which assumes that such objects never exist. - - * Make checking of permission for other users more strict. Now - the same privilege is required for the mount owner as for ptrace - on the process performing the filesystem operation. - -2005-04-23 Miklos Szeredi - - * Released 2.3-pre5 - -2005-04-22 Miklos Szeredi - - * Add -msoft-float to kernel module compile flags for 2.4.X. This - is needed on certain architectures. Report from Chris Kirby - - * Fix buggy behavior of open(..., O_CREAT|O_EXCL) if interrupted. - Reported by David Shaw - - * Remove "allow_root" option from kernel module, and implement - it's functionality in the library - - * Fix Oops caused by premature release of fuse_conn. Clean up - related code, to be more readable - - * Sendfile should not use page cache if "direct_io" mount option - is given - -2005-04-08 Miklos Szeredi - - * Fix Oops in case of nfs export. Spotted by David Shaw - - * Fix another Oops in case of write over nfs with direct_io turned - on. Again spotted by David Shaw - -2005-04-07 Miklos Szeredi - - * Released 2.3-pre4 - -2005-04-07 Miklos Szeredi - - * lib: finalized new readdir() interface, which now supersedes the - getdir() method. - -2005-04-03 Miklos Szeredi - - * Released 2.3-pre3 - -2005-04-03 Miklos Szeredi - - * Implement backward compatibility with version 5 kernel ABI - -2005-04-01 Miklos Szeredi - - * Released 2.3-pre2 - -2005-04-01 Miklos Szeredi - - * kernel: fix dirent offset handling - - * lib: add readdir and releasedir methods - - * lib: use fh field of fuse_file_info in opendir, readdir, - releasedir and fsyncdir methods - - * lib: check kernel API version and bail out of it's old. This - will be properly fixed in the next release - -2005-03-31 Miklos Szeredi - - * Released 2.3-pre1 - -2005-03-31 Miklos Szeredi - - * kernel API: add padding to structures, so 64bit and 32bit - compiler will return the same size - - * kernel API: add offset field to fuse_dirent. This will allow - more sophisticated readdir interface for userspace - - * kernel API: change major number to 6 - - * kernel: fix warnings on 64bit archs - - * kernel: in case of API version mismatch, return ECONNREFUSED - -2005-03-24 Miklos Szeredi - - * kernel: trivial cleanups - -2005-03-21 Miklos Szeredi - - * Add fsyncdir() operation - -2005-03-19 Miklos Szeredi - - * kernel: add locking to background list (fixes previous fix) - -2005-03-18 Miklos Szeredi - - * kernel: fix bug which could cause leave busy inodes after - unmount, and Oops. - -2005-03-08 Miklos Szeredi - - * examples: add -lpthread to link flags to work around valgrind - quirk - - * lib: don't exit threads, so cancelation doesn't cause segfault - -2005-03-04 Miklos Szeredi - - * kernel: fix nasty bug which could cause an Oops under certain - situations. Found by Magnus Johansson - -2005-02-28 Miklos Szeredi - - * libfuse: added opendir() method. This can be used in case - permission checking in getdir() is too late. Thanks to Usarin - Heininga for pointing out this deficiency - - * libfuse: added init() and destroy() methods to fuse_operations - - * kernel: llseek() method for files and directories made explicit - - * kernel: fixed inode leak in NFS export in case of nodeid - wrapping - -2005-02-15 Miklos Szeredi - - * libfuse: clean up some unitialized memory found with valgrind - - * Add -lpthread to Libs in fuse.pc. Valgrind seems to need an - explicitly linked libpthread for applications - -2005-02-10 Miklos Szeredi - - * fusermount: set umask, otherwise /etc/mtab will have - unpredictable permission. Spotted by Jindrich Kolorenc - - * fusermount: set owner and group of /etc/mtab to original values - on unmount - - * libfuse: add 'use_ino' option to help. Patch by Valient Gough - -2005-02-07 Miklos Szeredi - - * Cleaned up directory reading (temporary file is not used) - -2005-02-02 Miklos Szeredi - - * Released 2.2 - -2005-02-02 Miklos Szeredi - - * Fix possible race when operation is interrupted - -2005-01-28 Miklos Szeredi - - * Fix compilation on 2.6.7 - -2005-01-26 Miklos Szeredi - - * Released 2.2-pre6 - -2005-01-26 Miklos Szeredi - - * Fix bug in link() operation which caused the wrong path to be - passed as the first argument. Found by Anton Altaparmakov - -2005-01-21 Miklos Szeredi - - * LIB: fix double reply in readdir operation - - * fusermount: fix uid checking bug. Patch by Adam Connell - - * KERNEL: fix compile on various RedHat patched 2.4 kernels. - Patch by Keshava Gowda - -2005-01-20 Miklos Szeredi - - * KERNEL: provide correct llseek semantics for fuse device (fixes - a bug on Progeny 2.4.20 kernel). Reported by Valient Gough - -2005-01-20 Miklos Szeredi - - * Released 2.2-pre5 (matches kernel 2.6.11-rc1-mm2) - -2005-01-18 Miklos Szeredi - - * KERNEL ABI: remove GETDIR operation, and add OPENDIR, READDIR - and RELEASEDIR. This ends the ugly hack of passing a file - descriptor to the kernel, and actually makes the code simpler. - -2005-01-17 Miklos Szeredi - - * Released 2.2-pre4 - -2005-01-17 Miklos Szeredi - - * fusermount: remove capability setting, which was the cause of - problems for some users. It seems that FS related capabilities - are removed by setfsuid(), so this isn't even needed. - -2005-01-15 Miklos Szeredi - - * fix compilation on 2.4 kernels (reported by Valient Gough) - - * fix failure to unmount bug (found by David Shaw) - - * fusermount: improve parsing of /etc/fuse.conf - -2005-01-13 Miklos Szeredi - - * Remove 'mount_max' and 'user_allow_other' module options. These - are now checked by fusermount, and can be set in /etc/fuse.conf - - * KERNEL: change check for fsid == 0 to capable(CAP_DAC_OVERRIDE) - -2005-01-11 Miklos Szeredi - - * KERNEL: fix possible inode allocation problem, where - sizeof(struct inode) is not aligned (found by Mike Waychison) - - * KERNEL: use new follow_link/put_link methods - - * KERNEL: cosmetic fixes - -2005-01-10 Miklos Szeredi - - * Released 2.2-pre3 - -2005-01-10 Miklos Szeredi - - * Add missing code that was accidently left out - -2005-01-09 Miklos Szeredi - - * Released 2.2-pre2 - -2005-01-09 Miklos Szeredi - - * Change "uid" mount option to "user_id" to avoid confusion with a - mount option "uid" commonly used by many filesystems - -2005-01-09 Miklos Szeredi - - * Released 2.2-pre1 - -2005-01-09 Miklos Szeredi - - * If FUSE is configured in the kernel, don't build it by default - -2005-01-07 Miklos Szeredi - - * Compile fix by Christian Magnusson - -2005-01-05 Miklos Szeredi - - * Fix compilation for 2.6.{0-5} kernels - -2005-01-04 Miklos Szeredi - - * KERNEL: if request is interrupted, still keep reference to used - inode(s) and file, so that FORGET and RELEASE are not sent until - userspace finishes the request. - - * remove /{sys,proc}/fs/fuse/version, and instead add an INIT - request with the same information, which is more flexible, - simpler, works on embedded systems. - -2004-12-16 Miklos Szeredi - - * KERNEL ABI: update interface to make it independent of type - sizes. This will help on 64 bit architectures which can run - legacy 32 bit applications. - - * KERNEL ABI: add "len" field to request headers. This will allow - sending/receiving requests in multiple chunks. - - * KERNEL: handle file type change more intelligently - - * LIB: "-o debug" option should disable backgrounding (fix by - Fabien Reygrobellet) - -2004-12-13 Miklos Szeredi - - * KERNEL: invalidate dentry/attributes if interrupted request - could leave filesystem in an unknown state. - -2004-12-12 Miklos Szeredi - - * KERNEL: lots of cleanups related to avoiding possible deadlocks. - These will cause some regressions, but stability is considered - more important. If any of these features turns out to be - important, it can be readded with the deadlock problems addressed. - - * Make all requests interruptible (only with SIGKILL currently). - This can be used to break any deadlock produced by the userspace - filesystem accessing it's own exported files. The RELEASE request - is special, because if it's interrupted before sending it to - userspace it is still sent, but the reply is not awaited. - - * If request is interrupted before being sent to userspace, and if - it hasn't yet got any side effects, it is always restarted, - regardless of the SA_RESTART flag. This makes these interruptions - transparent to the process. - - * Remove shared-writable mmap support, which was prone to an - out-of-memory deadlock situation - - * Remove INVALIDATE userspace initiated request - - * Make readpages() synchronous. Asynchronous requests are - deadlock prone, since they cannot be interrupted. - - * Add readv/writev support to fuse device operations - - * Remove some printks, which userspace FS can use for a DoS - against syslog - - * Remove 'large_read' mount option from 2.6 in kernel, check it in - fusermount instead - - * LIB: improve compatibility with a fuse.h header installed in - ${prefix}/include which in turn includes the real header. - - * LIB: improve compatibility by defining fuse_main() (which is now - not used), so old configure scripts find it. - -2004-12-10 Miklos Szeredi - - * When mounting on a subdirectory of / don't duplicate slashes at - the beggining of path (spotted by David Shaw) - -2004-12-09 Miklos Szeredi - - * Fix bug causing garbage in mount options (spotted by David Shaw) - -2004-12-07 Miklos Szeredi - - * Add 'writepage' flag to 'fuse_file_info'. - - * More comments in fuse.h - - * Get rid of double underscores - -2004-12-04 Miklos Szeredi - - * Add -D_FILE_OFFSET_BITS=64 to cflags provided by pkg-config - - * helper.c: add -ho option, which only displays the options not - the usage header. This can be used by filesystems which have - their own options. - -2004-12-03 Miklos Szeredi - - * Add source compatibility to 2.1 and 1.1 APIs. To select betwen - versions simply define FUSE_USE_VERSION to 22, 21 or 11 before - including the fuse header - - * Add binary compatibility to 2.1 version of library with symbol - versioning - -2004-12-03 Miklos Szeredi - - * Released 2.1 - -2004-12-01 Miklos Szeredi - - * kernel: clean up writing functions - - * kernel: no allocation on write in direct_io mode - - * move linux/fuse.h to fuse_kernel.h - -2004-11-30 Miklos Szeredi - - * kernel: clean up reading functions - -2004-11-29 Miklos Szeredi - - * kernel: make readpage() uninterruptible - - * kernel: check readonly filesystem flag in fuse_permission - - * lib: don't die if version file not found and new style device - exists - - * lib: add '-r' option, which is short for '-o ro' - - * fusermount: simplify device opening - - * kernel: when direct_io is turend on, copy data directly to - destination without itermediate buffer. More efficient and safer, - since no allocation is done. - - * fusermount: fix warning if fuse module is not loaded - - * kernel: use /dev/fuse on 2.4 too - -2004-11-26 Miklos Szeredi - - * libfuse API change: open, read, write, flush, fsync and release - are passed a 'struct fuse_file_info' pointer containing the open - flags (open and release), and the file handle. Verion changed to - 3.0. - -2004-11-23 Miklos Szeredi - - * More cleanups in the kernel - - * The 10,229 charater device number has been assigned for FUSE - - * Version file checking fix (reported by Christian Magnusson) - - * fusermount: opening the fuse device now doesn't need /sys. - - * Optimize reading by controlling the maximum readahead based on - the 'max_read' mount option - - * fixes for UCLIBC (Christian Magnusson) - -2004-11-19 Miklos Szeredi - - * Cleaned up kernel in preparation for merge into mainline: - - * Use /sys/fs/fuse/version instead of /proc/fs/fuse/version - - * Use real device (/dev/fuse) instead of /proc/fs/fuse/dev - - * __user annotations for sparse - - * allocate individual pages instead of kmalloc in fuse_readdir, - fuse_read and fuse_write. - - * Fix NFS export in case "use_ino" mount option is given - - * Make libfuse and fusermount compatible with future versions - - * fusermount: properly add mount options to /etc/mtab - -2004-11-15 Miklos Szeredi - - * fusermount: do not resolve last component of mountpoint on if it - is '.' or '..'. This new path resolvation is now done on mount as - well as unmount. This enables relative paths to work on unmount. - - * fusermount: parse common mount options like "ro", "rw", etc... - - * Allow module params to be changed through sysfs - -2004-11-14 Miklos Szeredi - - * Released 2.1-pre1 - -2004-11-14 Miklos Szeredi - - * Fix bug in fuse_readpages() causing Oops in certain situations. - Bug found by Vincenzo Ciancia. - - * Fix compilation with kernels versions > 2.6.9. - -2004-11-11 Miklos Szeredi - - * Check kernel interface version in fusermount to prevent - strangeness in case of mismatch. - - * No need to allocate fuse_conn until actual mount happens - - * Fix potential race between umount and fuse_invalidate - - * Check superblock of proc file in addition to inode number - - * Fix race between request_send_noreply() and fuse_dev_release() - -2004-11-10 Miklos Szeredi - - * Separate configure for the kernel directory - - * Don't allow write to return more than 'count' - - * Extend kernel interface for future use - -2004-11-09 Miklos Szeredi - - * Fix 'makeconf.sh' to use autoreconf if available - -2004-11-08 Miklos Szeredi - - * Add ino argument to 'fuse_dirfil_t'. NOTE: This breaks source - compatibility with earlier versions. To compile earier versions - just add '-DFUSE_DIRFIL_COMPAT' compile flag or fix the source. - Do not use the "use_ino" mount flag with filesystems compiled with - FUSE_DIRFIL_COMPAT. - - * Add pkg-config support. To compile a FUSE based filesystem you - can do "gcc -Wall `pkg-config --cflags --libs fuse` myfs.c -o myfs" - or similar. Note, that the PKG_CONFIG_PATH environment variable - usually needs to be set to "/usr/local/lib/pkgconfig". - - * fuse.h is now installed in ${prefix}/include/fuse/ - -2004-11-02 Miklos Szeredi - - * Added "use_ino" mount option. This enables the filesystems to - set the st_ino field on files - -2004-11-01 Miklos Szeredi - - * Fix compile problems with ancient (<=2.4.18) kernels (reported - by Jeremy Smith) - - * Add "allow_root" mount option. Patch by Yaroslav Rastrigin - - * Clear the 'exited' flag when mail loop is finished - -2004-10-28 Miklos Szeredi - - * Make xattr functions work under 2.6 (bug found by Vincenzo - Ciancia) - -2004-10-26 Miklos Szeredi - - * Reset request in fuse_flush() (bugreport by David Shaw) - -2004-10-21 Miklos Szeredi - - * fuse_main() now does not exit on error, rather it returns an - error code - - * Exported __fuse_setup() and __fuse_teardown() functions, which - make it easier to implement a custom event loop. - - * Use daemon() call to background the filesystem after mounting. - This function closes the standard input, output and error and - changes the current working directory to "/". - -2004-10-14 Miklos Szeredi - - * Released 1.9 - -2004-10-09 Miklos Szeredi - - * Don't allow fuse_flush() to be interrupted (bug found by David - Shaw) - -2004-09-27 Miklos Szeredi - - * Add PID to fuse_context. Patch by Steven James - - * Change file handle type to 'unsigned long' in kernel interface - -2004-09-22 Miklos Szeredi - - * A slight API change: fuse_get_context() doesn't need the "fuse" - pointer, but the returned context contains it instead. The - fuse_get() function is not needed anymore, so it's removed. - - * Fix mounting and umounting FUSE filesystem under another FUSE - filesystem by non-root (bug spotted by Valient Gough) - -2004-09-21 Miklos Szeredi - - * Fix deadlock in case of memory allocation failure. Patch by - Christian Magnusson - -2004-09-16 Miklos Szeredi - - * Check memory allocation failures in libfuse - -2004-09-14 Miklos Szeredi - - * Check temporary file creation failure in do_getdir(). Bug - spotted by Terje Oseberg - -2004-09-13 Miklos Szeredi - - * Allow "large_read" option for 2.6 kernels but warn of deprecation - - * Make requests non-interruptible so race with FORGET is avoided. - This is only a temporary solution - - * Support compiling FUSE kernel module on 2.4.x UML kernels - -2004-09-09 Miklos Szeredi - - * Fix bug in case two FORGETs for the same node are executed in - the wrong order. Bug spotted and endured for months by Franco - Broi, and logfile for solution provided by Terje Oseberg - -2004-09-01 Miklos Szeredi - - * Add -D_REENTRANT to the compile flags - - * Add documentation of fuse internals by Terje Oseberg - -2004-08-16 Miklos Szeredi - - * Change release method to be non-interruptible. Fixes bug - causing missing release() call when program which has opened files - is killed (reported by Franco Broi and David Shaw) - -2004-07-29 Miklos Szeredi - - * Add fuse_invalidate() to library API - -2004-07-26 Miklos Szeredi - - * Check permissions in setattr if 'default_permissions' flag is - set. Bug spotted by Damjan Lango - -2004-07-24 Miklos Szeredi - - * 'large_read' mount option removed for 2.6 kernels, since the - default (dynamic read size) is better - - * Extend kernel API with file handles. A file handle is returned - by open, and passed to read, write, flush, fsync and release. - This is currently only used for debug output in the library. - - * Security changes: - - * Change the current directory to the mountpoint before checking - the permissions and mount filesystem on "." - - * By default don't modprobe the fuse module for non-root. The old - behavior can be restored with the '--enable-auto-modprobe' flag of - ./configure - - * By default don't allow shared writable mappings for non-root. - The old behavior can be restored with the 'user_mmap=1' module - parameter - -2004-07-23 Miklos Szeredi - - * Clean up mount option passing to fusermount and to fuse_new() - BEWARE: this changes the userspace API slightly, and the command - line usage of programs using fuse_main() - -2004-07-20 Miklos Szeredi - - * Optimize reading under 2.6 kernels by issuing multiple page - asynchronous read requests - -2004-07-18 Miklos Szeredi - - * Only use redirty_page_for_writepage() for kernels >= 2.6.6 - -2004-07-16 Miklos Szeredi - - * Separate directory entry and inode attribute validity timer - - * New write semaphore to stop page writeback during truncate - - * Fsync now waits for all writes to complete before sending the - request - - * Optimization: if a page is completely written by - fuse_commit_write(), clear the dirty flag and set the uptodate - flag for that page - - * Some memory cleanup at exit - -2004-07-13 Miklos Szeredi - - * Add FUSE_HARD_REMOVE flag, and '-i' option to fuse main, which - disable the "hide if open" behavior of unlink/rename. - - * If temporary buffer allocation fails in raw read, fall back to a - smaller buffer - -2004-07-12 Miklos Szeredi - - * Fix bug in do_open() in libfuse: open count was incremented - after the reply is sent so it could race with unlink/forget and - cause an abort. - -2004-07-08 Miklos Szeredi - - * When performing create or remove operation, refresh the parent's - attributes on next revalidate, as i_nlink (and maybe size/time) - could be inacurate. - - * Use redirty_page_for_writepage() in fuse_writepage() for skipped - pages (2.6 only) - - * Set set_page_dirty address space operation (2.6 only) - -2004-07-06 Miklos Szeredi - - * Minor fix in read: print debug info even if read size is zero - -2004-07-04 Miklos Szeredi - - * Fix race between truncate and writepage (fsx-linux now runs - without error) - -2004-07-02 Miklos Szeredi - - * Fix kernel hang on mkfifo under 2.4 kernels (spotted and patch - by Mattias Wadman) - - * Added option for direct read/write (-r) - - * Fix revalidate time setting for newly created inodes - - * Remove uid==0 check for '-x' option in fusermount (kernel checks - this) - - * fuse_main() only installs handlers for signals (out of INT, HUP, - TERM, PIPE), for which no handler has yet been installed - - * Add module option 'user_allow_other' which if set to non-zero - will allow non root user to specify the 'allow_other' mount option - ('-x' option of fusermount) - - * Fix deadlock between page writeback completion and truncate - (bug found by Valient Gough with the fsx-linux utility) - -2004-07-01 Miklos Szeredi - - * Change passing fuse include dir to 2.6 kernel make system more - robust (fixes compile problems seen on SuSE 9.1 with updated 2.6 - kernel) - -2004-06-30 Miklos Szeredi - - * Acquire inode->i_sem before open and release methods to prevent - concurrent rename or unlink operations. - - * Make __fuse_read_cmd() read only one command. This allows - multiplexing the fuse file descriptor with other event sources - using select() or poll() (patch by Jeff Harris) - - * Export 'exited' flag with __fuse_exited() (patch by Jeff Harris) - -2004-06-27 Miklos Szeredi - - * Fix file offset wrap around at 4G when doing large reads - -2004-06-24 Miklos Szeredi - - * Fix memory leak in open (Valient Gough) - -2004-06-24 Miklos Szeredi - - * Add "close after delete" support to libfuse (patch by Valient - Gough) - - * Cancel all worker threads before exit in multithreaded mode - -2004-06-23 Miklos Szeredi - - * Fix locking bugs - - * Don't send reply to RELEASE - - * Work with newer libtool (1.5a) - - * Check for st_atim member of struct stat - -2004-06-22 Miklos Szeredi - - * No request allocation needed on inode and file release - -2004-06-21 Miklos Szeredi - - * Fix possible inode leak in userspace in case of unfinished - lookup/mknod/mkdir/symlink/link operation. - -2004-06-20 Miklos Szeredi - - * Fix some races and cleanups in fuse_read_super() - -2004-06-19 Miklos Szeredi - - * Requests are allocated at open time - -2004-06-03 Miklos Szeredi - - * Build shared library as well as static (using libtool) - - * Change FUSE_MINOR_VERSION from 1 to 0. I know it's illegal but - there has not been a release with the previous minor number, and I - hope nobody is using it for anything. - - * Change fuse_main(), so that default behavior is to go into - background if mount is successful. '-f' and '-d' options disable - backgrounding. This fixes the "Why does my FUSE daemon hang?" - newbie complaint. - - * Cache ENOSYS (function not implemented) errors on *xattr, flush - and fsync - - * Don't call getdir method from open() only from first readdir(). - Open is sometimes just used to store the current directory - (e.g. find) - -2004-05-18 Miklos Szeredi - - * Added flush() call - -2004-05-04 Miklos Szeredi - - * Extended attributes support for 2.4 (patch by Cody Pisto) - -2004-04-20 Miklos Szeredi - - * Fixed parser with modversions (Mattias Wadman) - -2004-04-19 Miklos Szeredi - - * Added mount option parser to 2.4 build - -2004-04-13 Miklos Szeredi - - * Replaced binary mount data with text options - - * Show FUSE specific mount options in /proc/mounts - - * Check in fuse.h whether _FILE_OFFSET_BITS is set to 64 - -2004-04-09 Miklos Szeredi - - * Check some limits so userspace won't get too big requests - -2004-04-05 Miklos Szeredi - - * Kill compile warning - - * Upgraded user-mount patch for 2.6.5 - -2004-04-02 Miklos Szeredi - - * Add detection of user-mode-linux to configure - -2004-03-31 Miklos Szeredi - - * fixed zero size case for getxattr and listxattr - -2004-03-30 Miklos Szeredi - - * new fusermount flag '-z': lazy unmount, default is not lazy - - * Extended attributes operations added (getxattr, setxattr, - listxattr, removexattr) - -2004-03-25 Miklos Szeredi - - * If filesystem doesn't define a statfs operation, then an - all-zero default statfs is returned instead of ENOSYS - -2004-03-24 Miklos Szeredi - - * Add FS_BINARY_MOUNTDATA filesystem flag for kernels > 2.6.4 - -2004-03-09 Miklos Szeredi - - * Fix for uClinux (Christian Magnusson) - -2004-03-02 Miklos Szeredi - - * fuse_main() adds "-n progname" to the fusermount command line - - * More kernel interface changes: - - * Lookup/getattr return cache timeout values - -2004-02-25 Miklos Szeredi - - * Clean up option parsing in fuse_main() - - * Added fuse_get() function which returns the fuse object created - by fuse_main() - -2004-02-20 Miklos Szeredi - - * removed old way of mounting (fusermount mountpoint program) - - * more kernel interface changes: - - * added nanosecond precision to file times - - * removed interface version from mount data - - * added /proc/fs/fuse/version which contains MAJOR.MINOR - -2004-02-19 Miklos Szeredi - - * statfs library API changed to match other methods. Since this - is not backward compatible FUSE_MAJOR_VERSION is changed to 2 - - * kernel interface changes follow: - - * statfs changed to 64 bits, added 'bavail' field - - * add generation number to lookup result - - * optimized mknod/mkdir/symlink/link (no separate lookup is - needed) - - * rdev size increased to 32 bits for mknod - - * kernel interface version changed to 3.1 - -2004-02-18 Miklos Szeredi - - * user-mount upgraded for 2.6.3 kernel - -2004-02-17 Miklos Szeredi - - * Added user-mount.2.6.2-rc3.patch - - * Add FS_SAFE flag to fuse filesystem - - * fusermount should allow (un)mounting for non-root even if not - suid-root - -2004-02-12 Miklos Szeredi - - * Remove MS_PERMISSION mount flag (that means something else now) - -2004-02-10 Miklos Szeredi - - * Added check for i_size_read/write functions to configure.in - (patch by Valient Gough) - -2004-02-06 Miklos Szeredi - - * Fixed writing >= 2G files - - * Check file size on open (with generic_file_open()) - - * Readpage calls flush_dcache_page() after storing data - - * Use i_size_read/write for accessing inode->i_size - - * Make loopback mount of a fuse file work - -2004-02-04 Miklos Szeredi - - * Released 1.1 - -2004-01-29 Miklos Szeredi - - * Properly check if the inode exists in fuse_invalidate - -2004-01-27 Miklos Szeredi - - * Added -q option for fusermount - - * fuse_unmount() now uses -q option of fusermount, so no error is - printed if the cause of the program exit is that the filesystem - has already been unmounted - - * Fix i_nlink correctness after rmdir/unlink - -2004-01-26 Miklos Szeredi - - * Released 1.1-pre2 - -2004-01-26 Miklos Szeredi - - * Fix typo (thanks Marcos Dione) - - * Compile fixes for 2.4 kernels - -2004-01-23 Miklos Szeredi - - * Fix CONFIG_MODVERSIONS compile on 2.6 - -2004-01-22 Miklos Szeredi - - * Write all pending data before a RELEASE operation - - * Suppress 'Bad file descriptor' warning on exit - - * Replaced fusermount option '-d xxx' with '-n xxx' so it doesn't - get confused with '-d' of fuse_main() (sorry about this change) - - * New fusermount option '-l' which enables big reads. Big reads - are now disabled by default. - - * fuse_main() can accept fusermount arguments after a '--' - -2004-01-19 Miklos Szeredi - - * Support for exporting filesystem over NFS (see README.NFS) - -2004-01-14 Miklos Szeredi - - * Support non-blocking writepage on 2.6. This makes FUSE behave - much more nicely in low-memory situations - - * Fix 32-bit dev handling in getattr and mknod for 2.6 kernels. - (Note: the mknod method does not yet use 32bit device number) - -2004-01-13 Miklos Szeredi - - * Code cleanups - -2004-01-07 Miklos Szeredi - - * Released 1.1-pre1 - -2004-01-06 Miklos Szeredi - - * Integrated 2.6 kernel support patch by Michael Grigoriev - - * Improvements and cleanups for 2.6 kernels - -2004-01-05 Miklos Szeredi - - * Added -d option to fusermount - -2003-12-15 Miklos Szeredi - - * Added major+minor version to library API, and minor version to - kernel API - -2003-12-13 David McNab - - * Implemented fsync support in examples/example.py - - * Implemented 'fsync' and 'statfs' methods in python - interface - -2003-12-12 Miklos Szeredi - - * Make it compile on 2.4.19. - - * Add fsync operation (write file failed on xemacs & vi) - -2003-12-12 David McNab - - * Added distutils support to the python module, as per standard - python development practice - -2003-12-11 Miklos Szeredi - - * Add file locking for mount/unmount (based on patch by Valient - Gough) - -2003-12-11 David McNab - - * Python filesystem - was broken with python2.3, now fixed: - - changed PyTuple_* calls to PySequence_*, because os.lstat - is no longer returning a pure tuple - - changed PyInt_Check() calls to also call PyLong_Check, - to cover for cases (eg os.lstat) where longs are returned - - Added support for file 'release' handling, which IMO is - essential since this signals to a FS that writes to a file - are complete (and therefore the file can now be disposed of - meaningfully at the python filesystem's discretion) - - Added '__init__' handler to base Fuse class, which allows - your Python class to know the mountpoint and mount args, - as attributes myfs.mountpoint, myfs.optlist, myfs.optdict - - * General: - - added 'mount.fuse' script (in util/ dir), which is meant to be - symlinked from /sbin, and which allows FUSE filesystems to - be mounted with the 'mount' command, and listed in fstab; - also, mount arguments get passed to your filesystem - - -2003-11-04 Miklos Szeredi - - * Fix kernel version detection (again). Bugreport by Peter Levart - -2003-11-03 Miklos Szeredi - - * Applied read combining patch by Michael Grigoriev (tested by - Valient Gough and Vincent Wagelaar) - -2003-10-22 Miklos Szeredi - - * Mtab handling fix in fusermount by "Valient Gough" (SF patch - #766443) - -2003-10-13 Miklos Szeredi - - * Error code fixes in kernel module - -2003-10-04 Miklos Szeredi - - * kernel version detection fix - - * fusermount now uses "lazy" umount option - - * fusermount can use modprobe with module-init-tools - -2003-09-08 Miklos Szeredi - - * Integrated caching patch by Michael Grigoriev - - * Added "Filesystems" file with descriptions of projects using - FUSE - - * Added patch by Michael Grigoriev to allow compliation of FUSE - kernel module for 2.6 kernels - -2003-06-02 Miklos Szeredi - - * And another spec-file fix by Achim Settelmeier - -2003-05-26 Miklos Szeredi - - * Spec-file fix by Achim Settelmeier - -2003-03-10 Miklos Szeredi - - * Fix umount oops (found by Samuli Kärkkäinen) - -2003-03-05 Miklos Szeredi - - * Merge of fuse_redhat.spec and fuse.spec by Achim Settelmeier - -2003-03-04 Miklos Szeredi - - * Updated fuse.spec file (Achim Settelmeier) - -2003-02-19 Miklos Szeredi - - * Version 1.0 released - -2003-02-12 Miklos Szeredi - - * SuSE compilation fix by Juan-Mariano de Goyeneche - -2002-12-10 Miklos Szeredi - - * The release() VFS call is now exported to the FUSE interface - -2002-12-05 Miklos Szeredi - - * 64 bit file offset fixes in the fuse kernel module - - * Added function 'fuse_exit()' which can be used to exit the main - loop - -2002-12-03 Miklos Szeredi - - * Added _FILE_OFFSET_BITS=64 define to fuse.h. Note, that this is - an incompatible interface change. - -2002-10-28 Miklos Szeredi - - * Portablility fix (bug reported by C. Chris Erway) - -2002-10-25 Miklos Szeredi - - * Use Mark Glines' fd passing method for default operation instead - of old reexec - -2002-10-22 Miklos Szeredi - - * fix "Stale NFS file handle" bug caused by changes in 2.4.19 - -2002-10-22 Miklos Szeredi - - * fix incompatiblity with Red Hat kernels, with help from Nathan - Thompson-Amato. - -2002-04-18 Mark Glines - - * added an alternative to fuse_mount(), called - fuse_mount_ioslave(), which does not need to reexec the - FUSE program. - * added a small helper util needed by fuse_mount_ioslave(). - -2002-03-16 Mark Glines - - * use struct fuse_statfs everywhere possible to avoid problems - with the headerfiles changing struct statfs member sizes - -2002-03-01 Miklos Szeredi - - * Another RPM spec file for RedHat >= 7 by Ian Pilcher - -2002-01-14 Miklos Szeredi - - * RPM support by Achim Settelmeier - -2002-01-09 Miklos Szeredi - - * Version 0.95 released - -2002-01-09 Miklos Szeredi - - * Revaidate all path components not just the last, this means a - very small performance penalty for being more up-to-date. - -2002-01-08 Miklos Szeredi - - * Update and fix python interface - -2002-01-07 Mark Glines - - * Added statfs() support to kernel, lib, examples, and perl! - -2001-12-26 Miklos Szeredi - - * Better cross compilation support - - * Ported to Compaq IPAQ - -2001-12-20 Miklos Szeredi - - * Added function fuse_get_context() to library API (inspired by - patch from Matt Ryan) - - * Added flags to fusermount and to kernel interface to control - permission checking - - * Integrated fuse_set_operations() into fuse_new() - -2001-12-08 Miklos Szeredi - - * Applied header protection + extern "C" patch by Roland - Bauerschmidt - -2001-12-02 Miklos Szeredi - - * Added perl bindings by Mark Glines - -2001-11-21 Miklos Szeredi - - * Cleaned up way of mounting simple filesystems. - - * fuse_main() helper function added - -2001-11-18 Miklos Szeredi - - * Optimized read/write operations, so that minimal copying of data - is done - -2001-11-14 Miklos Szeredi - - * Python bindings by Jeff Epler added - -2001-11-13 Miklos Szeredi - - * Fixed vfsmount reference leak in fuse_follow_link - - * FS blocksize is set to PAGE_CACHE_SIZE, blksize attribute from - userspace is ignored - -2001-11-09 Miklos Szeredi - - * Started ChangeLog diff --git a/libfuse/Makefile b/libfuse/Makefile index 522ca604..2a387f00 100644 --- a/libfuse/Makefile +++ b/libfuse/Makefile @@ -37,7 +37,6 @@ SRC = \ lib/debug.c \ lib/fuse.c \ lib/fuse_dirents.c \ - lib/fuse_kern_chan.c \ lib/fuse_loop_mt.c \ lib/fuse_lowlevel.c \ lib/fuse_mt.c \ diff --git a/libfuse/include/fuse_lowlevel.h b/libfuse/include/fuse_lowlevel.h index 9fe0b652..9ee0fe04 100644 --- a/libfuse/include/fuse_lowlevel.h +++ b/libfuse/include/fuse_lowlevel.h @@ -1503,231 +1503,29 @@ struct fuse_session *fuse_lowlevel_new(struct fuse_args *args, * Session interface * * ----------------------------------------------------------- */ -/** - * Session operations - * - * This is used in session creation - */ -struct fuse_session_ops -{ - /** - * Hook to process a request (mandatory) - * - * @param data user data passed to fuse_session_new() - * @param buf buffer containing the raw request - * @param len request length - * @param ch channel on which the request was received - */ - void (*process)(void *data, const char *buf, size_t len, - struct fuse_chan *ch); - - /** - * Hook for session exit and reset (optional) - * - * @param data user data passed to fuse_session_new() - * @param val exited status (1 - exited, 0 - not exited) - */ - void (*exit)(void *data, int val); - - /** - * Hook for querying the current exited status (optional) - * - * @param data user data passed to fuse_session_new() - * @return 1 if exited, 0 if not exited - */ - int (*exited)(void *data); - - /** - * Hook for cleaning up the channel on destroy (optional) - * - * @param data user data passed to fuse_session_new() - */ - void (*destroy)(void *data); -}; - -/** - * Create a new session - * - * @param op session operations - * @param data user data - * @return new session object, or NULL on failure - */ -struct fuse_session *fuse_session_new(struct fuse_session_ops *op, void *data); - -/** - * Assign a channel to a session - * - * Note: currently only a single channel may be assigned. This may - * change in the future - * - * If a session is destroyed, the assigned channel is also destroyed - * - * @param se the session - * @param ch the channel - */ +struct fuse_session *fuse_session_new(void *data, + void *receive_buf, + void *process_buf, + void *destroy); void fuse_session_add_chan(struct fuse_session *se, struct fuse_chan *ch); - -/** - * Remove a channel from a session - * - * If the channel is not assigned to a session, then this is a no-op - * - * @param ch the channel to remove - */ void fuse_session_remove_chan(struct fuse_chan *ch); - -/** - * Iterate over the channels assigned to a session - * - * The iterating function needs to start with a NULL channel, and - * after that needs to pass the previously returned channel to the - * function. - * - * @param se the session - * @param ch the previous channel, or NULL - * @return the next channel, or NULL if no more channels exist - */ -struct fuse_chan *fuse_session_next_chan(struct fuse_session *se, - struct fuse_chan *ch); - -/** - * Process a raw request - * - * @param se the session - * @param buf buffer containing the raw request - * @param len request length - * @param ch channel on which the request was received - */ -void fuse_session_process(struct fuse_session *se, const char *buf, size_t len, - struct fuse_chan *ch); - -/** - * Process a raw request supplied in a generic buffer - * - * This is a more generic version of fuse_session_process(). The - * fuse_buf may contain a memory buffer or a pipe file descriptor. - * - * @param se the session - * @param buf the fuse_buf containing the request - * @param ch channel on which the request was received - */ -void fuse_session_process_buf(struct fuse_session *se, - const struct fuse_buf *buf, struct fuse_chan *ch); - -/** - * Receive a raw request supplied in a generic buffer - * - * This is a more generic version of fuse_chan_recv(). The fuse_buf - * supplied to this function contains a suitably allocated memory - * buffer. This may be overwritten with a file descriptor buffer. - * - * @param se the session - * @param buf the fuse_buf to store the request in - * @param chp pointer to the channel - * @return the actual size of the raw request, or -errno on error - */ -int fuse_session_receive_buf(struct fuse_session *se, struct fuse_buf *buf, - struct fuse_chan **chp); - -/** - * Destroy a session - * - * @param se the session - */ void fuse_session_destroy(struct fuse_session *se); - -/** - * Exit a session - * - * @param se the session - */ void fuse_session_exit(struct fuse_session *se); - -/** - * Reset the exited status of a session - * - * @param se the session - */ -void fuse_session_reset(struct fuse_session *se); - -/** - * Query the exited status of a session - * - * @param se the session - * @return 1 if exited, 0 if not exited - */ int fuse_session_exited(struct fuse_session *se); - -/** - * Get the user data provided to the session - * - * @param se the session - * @return the user data - */ +void fuse_session_reset(struct fuse_session *se); void *fuse_session_data(struct fuse_session *se); +int fuse_session_receive(struct fuse_session *se, + struct fuse_buf *buf); +void fuse_session_process(struct fuse_session *se, + const struct fuse_buf *buf); -/** - * Enter a multi-threaded event loop - * - * @param se the session - * @return 0 on success, -1 on error - */ int fuse_session_loop_mt(struct fuse_session *se, const int threads); /* ----------------------------------------------------------- * * Channel interface * * ----------------------------------------------------------- */ -/** - * Channel operations - * - * This is used in channel creation - */ -struct fuse_chan_ops -{ - /** - * Hook for receiving a raw request - * - * @param ch pointer to the channel - * @param buf the buffer to store the request in - * @param size the size of the buffer - * @return the actual size of the raw request, or -1 on error - */ - int (*receive)(struct fuse_chan **chp, char *buf, size_t size); - - /** - * Hook for sending a raw reply - * - * A return value of -ENOENT means, that the request was - * interrupted, and the reply was discarded - * - * @param ch the channel - * @param iov vector of blocks - * @param count the number of blocks in vector - * @return zero on success, -errno on failure - */ - int (*send)(struct fuse_chan *ch, const struct iovec iov[], - size_t count); - - /** - * Destroy the channel - * - * @param ch the channel - */ - void (*destroy)(struct fuse_chan *ch); -}; - -/** - * Create a new channel - * - * @param op channel operations - * @param fd file descriptor of the channel - * @param bufsize the minimal receive buffer size - * @param data user data - * @return the new channel object, or NULL on failure - */ -struct fuse_chan *fuse_chan_new(struct fuse_chan_ops *op, int fd, - size_t bufsize, void *data); +struct fuse_chan *fuse_chan_new(int fd, size_t bufsize); /** * Query the file descriptor of the channel @@ -1761,37 +1559,12 @@ void *fuse_chan_data(struct fuse_chan *ch); */ struct fuse_session *fuse_chan_session(struct fuse_chan *ch); -/** - * Receive a raw request - * - * A return value of -ENODEV means, that the filesystem was unmounted - * - * @param ch pointer to the channel - * @param buf the buffer to store the request in - * @param size the size of the buffer - * @return the actual size of the raw request, or -errno on error - */ -int fuse_chan_recv(struct fuse_chan **ch, char *buf, size_t size); - -/** - * Send a raw reply - * - * A return value of -ENOENT means, that the request was - * interrupted, and the reply was discarded - * - * @param ch the channel - * @param iov vector of blocks - * @param count the number of blocks in vector - * @return zero on success, -errno on failure - */ -int fuse_chan_send(struct fuse_chan *ch, const struct iovec iov[], +int fuse_chan_recv(struct fuse_chan *ch, + char *buf, + size_t size); +int fuse_chan_send(struct fuse_chan *ch, + const struct iovec iov[], size_t count); - -/** - * Destroy a channel - * - * @param ch the channel - */ void fuse_chan_destroy(struct fuse_chan *ch); EXTERN_C_END diff --git a/libfuse/lib/fuse.c b/libfuse/lib/fuse.c index 418795d4..cbad1242 100644 --- a/libfuse/lib/fuse.c +++ b/libfuse/lib/fuse.c @@ -3817,14 +3817,6 @@ free_cmd(struct fuse_cmd *cmd) free(cmd); } -void -fuse_process_cmd(struct fuse *f, - struct fuse_cmd *cmd) -{ - fuse_session_process(f->se,cmd->buf,cmd->buflen,cmd->ch); - free_cmd(cmd); -} - int fuse_exited(struct fuse *f) { @@ -3863,13 +3855,13 @@ fuse_alloc_cmd(size_t bufsize) struct fuse_cmd* fuse_read_cmd(struct fuse *f) { - struct fuse_chan *ch = fuse_session_next_chan(f->se,NULL); + struct fuse_chan *ch = f->se->ch; size_t bufsize = fuse_chan_bufsize(ch); struct fuse_cmd *cmd = fuse_alloc_cmd(bufsize); if(cmd != NULL) { - int res = fuse_chan_recv(&ch,cmd->buf,bufsize); + int res = fuse_chan_recv(ch,cmd->buf,bufsize); if(res <= 0) { free_cmd(cmd); @@ -3887,7 +3879,7 @@ fuse_read_cmd(struct fuse *f) void fuse_exit(struct fuse *f) { - fuse_session_exit(f->se); + f->se->exited = 1; } struct fuse_context* diff --git a/libfuse/lib/fuse_i.h b/libfuse/lib/fuse_i.h index 096d52db..18918f5a 100644 --- a/libfuse/lib/fuse_i.h +++ b/libfuse/lib/fuse_i.h @@ -16,18 +16,18 @@ struct fuse_ll; struct fuse_session { - struct fuse_session_ops op; + int (*receive_buf)(struct fuse_session *se, + struct fuse_buf *buf, + struct fuse_chan *ch); - int (*receive_buf)(struct fuse_session *se, struct fuse_buf *buf, - struct fuse_chan **chp); - - void (*process_buf)(void *data, const struct fuse_buf *buf, + void (*process_buf)(void *data, + const struct fuse_buf *buf, struct fuse_chan *ch); - void *data; + void (*destroy)(void *data); + void *data; volatile int exited; - struct fuse_chan *ch; }; diff --git a/libfuse/lib/fuse_kern_chan.c b/libfuse/lib/fuse_kern_chan.c deleted file mode 100644 index 8bfe8ac2..00000000 --- a/libfuse/lib/fuse_kern_chan.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - FUSE: Filesystem in Userspace - Copyright (C) 2001-2007 Miklos Szeredi - - This program can be distributed under the terms of the GNU LGPLv2. - See the file COPYING.LIB -*/ - -#include "fuse_lowlevel.h" -#include "fuse_kernel.h" -#include "fuse_i.h" - -#include -#include -#include -#include - -static int fuse_kern_chan_receive(struct fuse_chan **chp, char *buf, - size_t size) -{ - struct fuse_chan *ch = *chp; - int err; - ssize_t res; - struct fuse_session *se = fuse_chan_session(ch); - assert(se != NULL); - - restart: - res = read(fuse_chan_fd(ch), buf, size); - err = errno; - - if (fuse_session_exited(se)) - return 0; - if (res == -1) { - /* ENOENT means the operation was interrupted, it's safe - to restart */ - if (err == ENOENT) - goto restart; - - if (err == ENODEV) { - fuse_session_exit(se); - return 0; - } - /* Errors occurring during normal operation: EINTR (read - interrupted), EAGAIN (nonblocking I/O), ENODEV (filesystem - umounted) */ - if (err != EINTR && err != EAGAIN) - perror("fuse: reading device"); - return -err; - } - if ((size_t) res < sizeof(struct fuse_in_header)) { - fprintf(stderr, "short read on fuse device\n"); - return -EIO; - } - return res; -} - -static int fuse_kern_chan_send(struct fuse_chan *ch, const struct iovec iov[], - size_t count) -{ - if (iov) { - ssize_t res = writev(fuse_chan_fd(ch), iov, count); - int err = errno; - - if (res == -1) { - struct fuse_session *se = fuse_chan_session(ch); - - assert(se != NULL); - - /* ENOENT means the operation was interrupted */ - if (!fuse_session_exited(se) && err != ENOENT) - perror("fuse: writing device"); - return -err; - } - } - return 0; -} - -static void fuse_kern_chan_destroy(struct fuse_chan *ch) -{ - int fd = fuse_chan_fd(ch); - - if (fd != -1) - close(fd); -} - -struct fuse_chan * -fuse_kern_chan_new(int fd_) -{ - long pagesize; - size_t bufsize; - struct fuse_chan_ops op = - { - .receive = fuse_kern_chan_receive, - .send = fuse_kern_chan_send, - .destroy = fuse_kern_chan_destroy, - }; - - pagesize = sysconf(_SC_PAGESIZE); - - bufsize = ((FUSE_MAX_MAX_PAGES * pagesize) + 0x1000); - - return fuse_chan_new(&op, fd_, bufsize, NULL); -} diff --git a/libfuse/lib/fuse_loop_mt.c b/libfuse/lib/fuse_loop_mt.c index 00a0ee9c..687d5bbc 100644 --- a/libfuse/lib/fuse_loop_mt.c +++ b/libfuse/lib/fuse_loop_mt.c @@ -37,7 +37,6 @@ struct fuse_worker struct fuse_mt { struct fuse_session *se; - struct fuse_chan *prevch; struct fuse_worker main; sem_t finish; int exit; @@ -77,28 +76,29 @@ fuse_do_work(void *data) { int res; struct fuse_buf fbuf; - struct fuse_chan *ch = mt->prevch; fbuf = (struct fuse_buf){ .mem = w->buf, .size = w->bufsize }; pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); - res = fuse_session_receive_buf(mt->se, &fbuf, &ch); + res = fuse_session_receive(mt->se,&fbuf); pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL); if(res == -EINTR) continue; - if(res <= 0) { - if(res < 0) { - fuse_session_exit(mt->se); - mt->error = -1; + if(res <= 0) + { + if(res < 0) + { + mt->se->exited = 1; + mt->error = -1; + } + break; } - break; - } if(mt->exit) return NULL; - fuse_session_process_buf(mt->se, &fbuf, ch); + fuse_session_process(mt->se,&fbuf); } sem_post(&mt->finish); @@ -144,7 +144,7 @@ static int fuse_loop_start_thread(struct fuse_mt *mt) return -1; } memset(w, 0, sizeof(struct fuse_worker)); - w->bufsize = fuse_chan_bufsize(mt->prevch); + w->bufsize = fuse_chan_bufsize(mt->se->ch); w->buf = calloc(w->bufsize,1); w->mt = mt; if(!w->buf) { @@ -193,7 +193,6 @@ fuse_session_loop_mt(struct fuse_session *se_, memset(&mt,0,sizeof(struct fuse_mt)); mt.se = se_; - mt.prevch = fuse_session_next_chan(se_,NULL); mt.error = 0; mt.main.thread_id = pthread_self(); mt.main.prev = mt.main.next = &mt.main; diff --git a/libfuse/lib/fuse_lowlevel.c b/libfuse/lib/fuse_lowlevel.c index 5a8fd151..78bf6868 100644 --- a/libfuse/lib/fuse_lowlevel.c +++ b/libfuse/lib/fuse_lowlevel.c @@ -2515,21 +2515,6 @@ fuse_ll_process_buf(void *data, goto out_free; } -static -void -fuse_ll_process(void *data, - const char *buf, - size_t len, - struct fuse_chan *ch) -{ - struct fuse_buf fbuf = { - .mem = (void *) buf, - .size = len, - }; - - fuse_ll_process_buf(data, &fbuf, ch); -} - enum { KEY_HELP, KEY_VERSION, @@ -2652,11 +2637,9 @@ fuse_ll_pipe_destructor(void *data) #ifdef HAVE_SPLICE static int -fuse_ll_receive_buf(struct fuse_session *se, - struct fuse_buf *buf, - struct fuse_chan **chp) +fuse_ll_receive_buf(struct fuse_session *se, + struct fuse_buf *buf) { - struct fuse_chan *ch = *chp; struct fuse_ll *f = fuse_session_data(se); size_t bufsize = buf->size; struct fuse_ll_pipe *llp; @@ -2687,27 +2670,27 @@ fuse_ll_receive_buf(struct fuse_session *se, goto fallback; } - res = splice(fuse_chan_fd(ch), NULL, llp->pipe[1], NULL, bufsize, 0); + res = splice(fuse_chan_fd(se->ch), NULL, llp->pipe[1], NULL, bufsize, 0); err = errno; if(fuse_session_exited(se)) return 0; - if (res == -1) + if(res == -1) { - if (err == ENODEV) + if(err == ENODEV) { fuse_session_exit(se); return 0; } - if (err != EINTR && err != EAGAIN) + if(err != EINTR && err != EAGAIN) perror("fuse: splice from device"); return -err; } - if (res < sizeof(struct fuse_in_header)) + if(res < sizeof(struct fuse_in_header)) { fprintf(stderr, "short splice from fuse device\n"); return -EIO; @@ -2755,7 +2738,7 @@ fuse_ll_receive_buf(struct fuse_session *se, return res; fallback: - res = fuse_chan_recv(chp, buf->mem, bufsize); + res = fuse_chan_recv(se->ch, buf->mem, bufsize); if (res <= 0) return res; @@ -2766,13 +2749,12 @@ fuse_ll_receive_buf(struct fuse_session *se, #else static int -fuse_ll_receive_buf(struct fuse_session *se, - struct fuse_buf *buf, - struct fuse_chan **chp) +fuse_ll_receive_buf(struct fuse_session *se, + struct fuse_buf *buf) { (void) se; - int res = fuse_chan_recv(chp, buf->mem, buf->size); + int res = fuse_chan_recv(se->ch, buf->mem, buf->size); if (res <= 0) return res; @@ -2796,10 +2778,6 @@ fuse_lowlevel_new_common(struct fuse_args *args, int err; struct fuse_ll *f; struct fuse_session *se; - struct fuse_session_ops sop = { - .process = fuse_ll_process, - .destroy = fuse_ll_destroy, - }; if (sizeof(struct fuse_lowlevel_ops) < op_size) { @@ -2835,13 +2813,13 @@ fuse_lowlevel_new_common(struct fuse_args *args, f->owner = getuid(); f->userdata = userdata; - se = fuse_session_new(&sop, f); + se = fuse_session_new(f, + fuse_ll_receive_buf, + fuse_ll_process_buf, + fuse_ll_destroy); if (!se) goto out_key_destroy; - se->receive_buf = fuse_ll_receive_buf; - se->process_buf = fuse_ll_process_buf; - return se; out_key_destroy: diff --git a/libfuse/lib/fuse_mt.c b/libfuse/lib/fuse_mt.c index 1de419e8..aee80b60 100644 --- a/libfuse/lib/fuse_mt.c +++ b/libfuse/lib/fuse_mt.c @@ -16,98 +16,8 @@ #include #include -struct procdata -{ - struct fuse *f; - struct fuse_chan *prevch; - struct fuse_session *prevse; - fuse_processor_t proc; - void *data; -}; - -static void mt_session_proc(void *data, const char *buf, size_t len, - struct fuse_chan *ch) -{ - struct procdata *pd = (struct procdata *) data; - struct fuse_cmd *cmd = *(struct fuse_cmd **) buf; - - (void) len; - (void) ch; - pd->proc(pd->f, cmd, pd->data); -} - -static void mt_session_exit(void *data, int val) -{ - struct procdata *pd = (struct procdata *) data; - if (val) - fuse_session_exit(pd->prevse); - else - fuse_session_reset(pd->prevse); -} - -static int mt_session_exited(void *data) -{ - struct procdata *pd = (struct procdata *) data; - return fuse_session_exited(pd->prevse); -} - -static int mt_chan_receive(struct fuse_chan **chp, char *buf, size_t size) -{ - struct fuse_cmd *cmd; - struct procdata *pd = (struct procdata *) fuse_chan_data(*chp); - - assert(size >= sizeof(cmd)); - - cmd = fuse_read_cmd(pd->f); - if (cmd == NULL) - return 0; - - *(struct fuse_cmd **)buf = cmd; - - return sizeof(cmd); -} - -int fuse_loop_mt_proc(struct fuse *f, fuse_processor_t proc, void *data) -{ - int res; - struct procdata pd; - struct fuse_session *prevse = fuse_get_session(f); - struct fuse_session *se; - struct fuse_chan *prevch = fuse_session_next_chan(prevse, NULL); - struct fuse_chan *ch; - struct fuse_session_ops sop = { - .exit = mt_session_exit, - .exited = mt_session_exited, - .process = mt_session_proc, - }; - struct fuse_chan_ops cop = { - .receive = mt_chan_receive, - }; - - pd.f = f; - pd.prevch = prevch; - pd.prevse = prevse; - pd.proc = proc; - pd.data = data; - - se = fuse_session_new(&sop, &pd); - if (se == NULL) - return -1; - - ch = fuse_chan_new(&cop, fuse_chan_fd(prevch), - sizeof(struct fuse_cmd *), &pd); - if (ch == NULL) { - fuse_session_destroy(se); - return -1; - } - fuse_session_add_chan(se, ch); - res = fuse_session_loop_mt(se, - fuse_config_num_threads(f)); - fuse_session_destroy(se); - return res; -} - -int fuse_loop_mt(struct fuse *f) +int +fuse_loop_mt(struct fuse *f) { if (f == NULL) return -1; diff --git a/libfuse/lib/fuse_session.c b/libfuse/lib/fuse_session.c index ea6eacc5..cb3587de 100644 --- a/libfuse/lib/fuse_session.c +++ b/libfuse/lib/fuse_session.c @@ -8,23 +8,28 @@ #include "fuse_i.h" #include "fuse_misc.h" +#include "fuse_kernel.h" +#include +#include #include #include #include -#include -#include +#include +#include + struct fuse_chan { - struct fuse_chan_ops op; struct fuse_session *se; int fd; size_t bufsize; - void *data; }; -struct fuse_session *fuse_session_new(struct fuse_session_ops *op, void *data) +struct fuse_session *fuse_session_new(void *data, + void *receive_buf, + void *process_buf, + void *destroy) { struct fuse_session *se = (struct fuse_session *) malloc(sizeof(*se)); if (se == NULL) { @@ -33,8 +38,10 @@ struct fuse_session *fuse_session_new(struct fuse_session_ops *op, void *data) } memset(se, 0, sizeof(*se)); - se->op = *op; se->data = data; + se->receive_buf = receive_buf; + se->process_buf = process_buf; + se->destroy = destroy; return se; } @@ -57,110 +64,72 @@ void fuse_session_remove_chan(struct fuse_chan *ch) } } -struct fuse_chan *fuse_session_next_chan(struct fuse_session *se, - struct fuse_chan *ch) +void +fuse_session_destroy(struct fuse_session *se) { - assert(ch == NULL || ch == se->ch); - if (ch == NULL) - return se->ch; - else - return NULL; -} - -void fuse_session_process(struct fuse_session *se, const char *buf, size_t len, - struct fuse_chan *ch) -{ - se->op.process(se->data, buf, len, ch); + se->destroy(se->data); + if(se->ch != NULL) + fuse_chan_destroy(se->ch); + free(se); } -void fuse_session_process_buf(struct fuse_session *se, - const struct fuse_buf *buf, struct fuse_chan *ch) +void fuse_session_reset(struct fuse_session *se) { - if (se->process_buf) { - se->process_buf(se->data, buf, ch); - } else { - assert(!(buf->flags & FUSE_BUF_IS_FD)); - fuse_session_process(se->data, buf->mem, buf->size, ch); - } + se->exited = 0; } -int fuse_session_receive_buf(struct fuse_session *se, struct fuse_buf *buf, - struct fuse_chan **chp) +int +fuse_session_exited(struct fuse_session *se) { - int res; - - if (se->receive_buf) { - res = se->receive_buf(se, buf, chp); - } else { - res = fuse_chan_recv(chp, buf->mem, buf->size); - if (res > 0) - buf->size = res; - } - - return res; + return se->exited; } - -void fuse_session_destroy(struct fuse_session *se) +void +fuse_session_exit(struct fuse_session *se_) { - if (se->op.destroy) - se->op.destroy(se->data); - if (se->ch != NULL) - fuse_chan_destroy(se->ch); - free(se); + se_->exited = 1; } -void fuse_session_exit(struct fuse_session *se) +void *fuse_session_data(struct fuse_session *se) { - if (se->op.exit) - se->op.exit(se->data, 1); - se->exited = 1; + return se->data; } -void fuse_session_reset(struct fuse_session *se) +int +fuse_session_receive(struct fuse_session *se_, + struct fuse_buf *buf_) { - if (se->op.exit) - se->op.exit(se->data, 0); - se->exited = 0; + return se_->receive_buf(se_,buf_,se_->ch); } -int fuse_session_exited(struct fuse_session *se) +void +fuse_session_process(struct fuse_session *se_, + const struct fuse_buf *buf_) { - if (se->op.exited) - return se->op.exited(se->data); - else - return se->exited; + se_->process_buf(se_->data,buf_,se_->ch); } -void *fuse_session_data(struct fuse_session *se) +struct fuse_chan * +fuse_chan_new(int fd, + size_t bufsize) { - return se->data; -} + struct fuse_chan *ch; -static struct fuse_chan *fuse_chan_new_common(struct fuse_chan_ops *op, int fd, - size_t bufsize, void *data) -{ - struct fuse_chan *ch = (struct fuse_chan *) malloc(sizeof(*ch)); - if (ch == NULL) { - fprintf(stderr, "fuse: failed to allocate channel\n"); - return NULL; - } + ch = (struct fuse_chan*)malloc(sizeof(*ch)); + if(ch == NULL) + { + fprintf(stderr, "fuse: failed to allocate channel\n"); + return NULL; + } memset(ch, 0, sizeof(*ch)); - ch->op = *op; + ch->fd = fd; ch->bufsize = bufsize; - ch->data = data; return ch; } -struct fuse_chan *fuse_chan_new(struct fuse_chan_ops *op, int fd, - size_t bufsize, void *data) -{ - return fuse_chan_new_common(op, fd, bufsize, data); -} - int fuse_chan_fd(struct fuse_chan *ch) { return ch->fd; @@ -178,40 +147,97 @@ size_t fuse_chan_bufsize(struct fuse_chan *ch) return ch->bufsize; } -void *fuse_chan_data(struct fuse_chan *ch) -{ - return ch->data; -} - struct fuse_session *fuse_chan_session(struct fuse_chan *ch) { return ch->se; } -int fuse_chan_recv(struct fuse_chan **chp, char *buf, size_t size) -{ - struct fuse_chan *ch = *chp; +int +fuse_chan_recv(struct fuse_chan *ch, + char *buf, + size_t size) +{ + int err; + ssize_t res; + struct fuse_session *se = fuse_chan_session(ch); + assert(se != NULL); + + restart: + res = read(fuse_chan_fd(ch), buf, size); + err = errno; + + if(fuse_session_exited(se)) + return 0; + + if(res == -1) + { + /* ENOENT means the operation was interrupted, it's safe + to restart */ + if (err == ENOENT) + goto restart; + + if(err == ENODEV) + { + se->exited = 1; + return 0; + } + + /* Errors occurring during normal operation: EINTR (read + interrupted), EAGAIN (nonblocking I/O), ENODEV (filesystem + umounted) */ + if(err != EINTR && err != EAGAIN) + perror("fuse: reading device"); + return -err; + } + + if((size_t) res < sizeof(struct fuse_in_header)) + { + fprintf(stderr, "short read on fuse device\n"); + return -EIO; + } - return ch->op.receive(chp, buf, size); + return res; } -int fuse_chan_receive(struct fuse_chan *ch, char *buf, size_t size) +int +fuse_chan_send(struct fuse_chan *ch, + const struct iovec iov[], + size_t count) { - int res; + if(!iov) + return 0; - res = fuse_chan_recv(&ch, buf, size); - return res >= 0 ? res : (res != -EINTR && res != -EAGAIN) ? -1 : 0; -} + int err; + ssize_t res; -int fuse_chan_send(struct fuse_chan *ch, const struct iovec iov[], size_t count) -{ - return ch->op.send(ch, iov, count); + res = writev(fuse_chan_fd(ch), iov, count); + err = errno; + + if(res == -1) + { + struct fuse_session *se = fuse_chan_session(ch); + + assert(se != NULL); + + /* ENOENT means the operation was interrupted */ + if(!fuse_session_exited(se) && err != ENOENT) + perror("fuse: writing device"); + return -err; + } + + return 0; } -void fuse_chan_destroy(struct fuse_chan *ch) +void +fuse_chan_destroy(struct fuse_chan *ch) { + int fd; + fuse_session_remove_chan(ch); - if (ch->op.destroy) - ch->op.destroy(ch); + + fd = fuse_chan_fd(ch); + if(fd != -1) + close(fd); + free(ch); } diff --git a/libfuse/lib/helper.c b/libfuse/lib/helper.c index 8dd48ad2..2e9b9fe2 100644 --- a/libfuse/lib/helper.c +++ b/libfuse/lib/helper.c @@ -237,8 +237,10 @@ struct fuse_chan * fuse_mount_common(const char *mountpoint_, struct fuse_args *args_) { - struct fuse_chan *ch; int fd; + long bufsize; + long pagesize; + struct fuse_chan *ch; /* * Make sure file descriptors 0, 1 and 2 are open, otherwise chaos @@ -255,7 +257,10 @@ fuse_mount_common(const char *mountpoint_, if(fd == -1) return NULL; - ch = fuse_kern_chan_new(fd); + pagesize = sysconf(_SC_PAGESIZE); + bufsize = ((FUSE_MAX_MAX_PAGES + 1) * pagesize); + + ch = fuse_chan_new(fd,bufsize); if(!ch) fuse_kern_unmount(mountpoint_, fd); @@ -284,11 +289,13 @@ void fuse_unmount(const char *mountpoint, struct fuse_chan *ch) fuse_unmount_common(mountpoint, ch); } -struct fuse *fuse_setup_common(int argc, char *argv[], - const struct fuse_operations *op, - size_t op_size, - char **mountpoint, - int *fd) +struct fuse * +fuse_setup_common(int argc, + char *argv[], + const struct fuse_operations *op, + size_t op_size, + char **mountpoint, + int *fd) { struct fuse_args args = FUSE_ARGS_INIT(argc, argv); struct fuse_chan *ch; @@ -344,7 +351,7 @@ struct fuse *fuse_setup(int argc, char *argv[], static void fuse_teardown_common(struct fuse *fuse, char *mountpoint) { struct fuse_session *se = fuse_get_session(fuse); - struct fuse_chan *ch = fuse_session_next_chan(se, NULL); + struct fuse_chan *ch = se->ch; fuse_remove_signal_handlers(se); fuse_unmount_common(mountpoint, ch); fuse_destroy(fuse);