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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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