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2019-05-15passthrough: fix unix-domain sockets on FreeBSD (#413)Alan Somers-9/+4
FreeBSD doesn't allow creating sockets using mknod(2). Instead, one has to use socket(2) and bind(2). Add appropriate logic to the examples and add a test case.
2019-04-18Add fallocate and use it instead of posix_fallocate if possible (#398)Liu Bo-0/+7
fuse.ko has supported FALLOC_FL_KEEP_SIZE and FALLOC_FL_PUNCH_HOLE at this moment and more modes may be supported in the future. fallocate(2) supports modes while posix_fallocate(2) does not, so this makes lo_fallocate use fallocate(2) instead. Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
2019-01-22passthrough_ll: lo_create() should honor CACHE_NEVER (#345)Miklos Szeredi-0/+5
lo_create() did not honour CACHE_NEVER in lo_create(), which has an effect on how I/O is performed after the open. The value of CACHE_ALWAYS, which results in setting fi->keep_cache, only has an effect for the state of the cache at open, and since the file was just created the cache is always empty. Hence setting this doesn't have an effect on lo_create(), but keep it for symmetry with lo_open().
2018-12-29Fixed memory leak.Nikolaus Rath-5/+0
Fixes: #338.
2018-11-27Fix fd/inode leakNikolaus Rath-13/+19
If do_readdir() calls do_lookup(), but the latter fails, we still have to return any entries that we already stored in the readdir buffer to avoid leaking inodes. do_lookup() may fail if e.g. we reach the file descriptor limit.
2018-11-24Avoid needless telldir() call.Nikolaus Rath-1/+1
2018-11-24Fixed lookup-count leak in do_readdir().Nikolaus Rath-3/+7
2018-11-19examples: add copy_file_range() support to passthrough(_fh)Niels de Vos-0/+30
The passthrough example filesystem can be used for validating the API and the implementation in the FUSE kernel module.
2018-11-09Don't crash if mountpoint is not specified.Nikolaus Rath-0/+7
Fixes: #319.
2018-10-10passthrough_ll: initialize unused memoryMiklos Szeredi-3/+4
For '.' and '..' entries only the file type in e.attr.st_mode and the inode number in e.attr.st_ino are used. But it's prudent to at least initialize the other fields of struct fuse_entry_param as well, instead of using random values from the stack.
2018-10-10passthrough_ll: allow configuring cachingMiklos Szeredi-8/+55
Caching can be controlled with the following options: "cache=never": disable caching "cache=normal": enable caching but also refresh after the timeout "cache=always": never refresh cache The timeout can be controlled with the "timeout=SEC" option, where SEC is the number of seconds and can be an arbitrary non-negative floating point number. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: add *xattr() operationsMiklos Szeredi-0/+186
The extended attribute functionality is enabled with the "xattr" option (default) and disabled with the "no_xatt" option. New operations added: - getxattr - listxattr - setxattr - removexattr Caveat: none of these operations will work on a symbolic link, because it's difficult to implement that without races that can result in incorrect operation. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: add flock()Miklos Szeredi-0/+23
Conditionally enable flock() locking on underlying filesystem, based on the flock/no_flock options. Default is "no_flock", meaning locking will be local to the fuse filesystem and won't be propagated to the filesystem passed through. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: whitespace cleanupMiklos Szeredi-6/+5
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: add forget_multi()Vivek Goyal-1/+16
Add method forget_multi() to forget multiple inodes in a single message. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: add source optionVivek Goyal-2/+19
Right now, passthrough_ll will use "/" as source directory for passthrough. We need more flexibility where user can specify path of directory to be passed through. Hence add an option "source=<source-dir>". Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: add some of the missing operationsMiklos Szeredi-1/+324
New operations added: - mkdir - mknod - symlink - link - unlink - rmdir - rename - setattr - fsyncdir - flush - fsync - statfs - fallocate Caveats: - The utimes(2) family of syscalls will fail on symlinks on 4.18 and earlier kernels. Hoping to add support to later kernels. - The link(2) and linkat(2) system calls will fail on symlinks unless running with privileges (CAP_DAC_READ_SEARCH). Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: add is_symlink to lo_inodeMiklos Szeredi-0/+3
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: set umask at startupMiklos Szeredi-0/+3
Like all the other passthrough examples. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: fix refcount for "." and ".." entriesMiklos Szeredi-7/+19
Kernel is not expecting an elevated lookup count for the "." and ".." entries when doing READDIRPLUS. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-10-10passthrough_ll: add locking to inode cacheMiklos Szeredi-26/+51
Otherwise it may crash when running multithreaded. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2018-04-13Invert calloc(3) argument order (`nmemb` comes first)Tomohiro Kusumi-1/+1
No functional difference expected, but should still follow the standard. http://pubs.opengroup.org/onlinepubs/009695399/functions/calloc.html
2018-01-15Fix typo in "passthrough" docstring (#229)Mateusz Urbańczyk-1/+1
2017-09-25Removed unneccessary #include <config.h> from examplesNikolaus Rath-4/+0
Fixes: #208.
2017-08-24passthrough_ll: only active EXPORT_SUPPORT of supported by kernel.Nikolaus Rath-1/+3
2017-08-06Added writeback cache to passthrough_llNikolaus Rath-2/+46
This fixes issue #191 (where the test was done by simply adding FUSE_CAP_WRITEBACK_CACHE without adjusting the flags in the open() call). Fixes: #191.
2017-08-06Removed compat stuff in passthrough_llNikolaus Rath-42/+0
As the comment says, this made it compile but not work. If there is a need, we can add these checks to meson.build to only build this file if the prerequisites are satisfied.
2017-08-04passthrough_ll: added more debugging outputNikolaus Rath-1/+20
2017-08-03Fix compilation on 32bit systemsNikolaus Rath-6/+6
Fixes: #185.
2017-07-08Added public fuse_lib_help(), bumped minor versionNikolaus Rath-1/+1
2017-06-05examples/passthrough_ll: added support for create()Nikolaus Rath-1/+23
2017-06-05example/passthrough_ll: added write supportNikolaus Rath-1/+21
2017-05-25passthrough_ll: document that fuse_ino_t and uintptr_t sizes must matchNikolaus Rath-0/+13
We can consider changing the code to drop the requirement if it turns out that there's a system where this isn't given. Fixes issue #167.
2017-04-07passthrough_ll: document that functionality is restrictedNikolaus Rath-1/+5
2017-03-15passthrough_fh: declare support for . and .. lookups.Nikolaus Rath-0/+8
2016-11-28examples/passthrough_ll.c: Include <limits.h> (for PATH_MAX macro).Przemyslaw Pawelczyk-0/+1
Otherwise building w/o optimization (-O0) fails. passthrough_ll.c: In function 'lo_readlink': passthrough_ll.c:251:11: error: 'PATH_MAX' undeclared (first use in this function) char buf[PATH_MAX + 1]; (gcc v5.3.0 in Alpine Linux v3.4.6 x86_64 w/ musl-libc v1.1.14.)
2016-11-28examples/passthrough_ll.c: Close root fd before application ends.Przemyslaw Pawelczyk-0/+3
If we want to do, what system would do anyway upon program termination, then let's try to be a bit more scrupulous.
2016-11-28examples/passthrough_ll.c: Fix segfault when showing help or version.Przemyslaw Pawelczyk-1/+2
root lo_inode's next and prev were not set early enough, which led to accessing addr 0x8 (or 0x4, depending on ptr size) when setting prev variable in lo_free(lo.root.next), because lo.root.next was NULL.
2016-10-28Clean-up doxygen documentationNikolaus Rath-4/+3
Fixes: #81.
2016-10-15Make --help output more suitable for end-userNikolaus Rath-2/+1
We now only list options that are potentially useful for an end-user (and unlikely to accidentally break a file system). The full list of FUSE options has been moved to the documentation of the fuse_new() and fuse_session_new() functions.
2016-10-15Unify handling of fuse_conn_info optionsNikolaus Rath-1/+0
Instead of using command line options to modify struct fuse_conn_info before and after calling the init() handler, we now give the file system explicit control over this.
2016-10-13Make -o clone_fd into a parameter of session_loop_mt().Nikolaus Rath-1/+1
This option really affects the behavior of the session loop, not the low-level interface. Therefore, it does not belong in the fuse_session object.
2016-10-09Renamed some examples to make their function more obviousNikolaus Rath-0/+522
Also, added more comments for the same purpose.
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