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Fixes warning under 32-bit.
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IN a bunch of comments we say 'under the terms of the GNU GPL', make
it clear this is GPLv2 (as LICENSE says).
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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Upgrade pip to fix [*]:
[66/66] Linking target example/passthrough_hp.
Traceback (most recent call last):
File "/usr/lib/python3.5/runpy.py", line 174, in _run_module_as_main
mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
File "/usr/lib/python3.5/runpy.py", line 133, in _get_module_details
return _get_module_details(pkg_main_name, error)
File "/usr/lib/python3.5/runpy.py", line 109, in _get_module_details
__import__(pkg_name)
File "/usr/local/lib/python3.5/dist-packages/pytest/__init__.py", line 6, in <module>
from _pytest.assertion import register_assert_rewrite
File "/usr/local/lib/python3.5/dist-packages/_pytest/assertion/__init__.py", line 7, in <module>
from _pytest.assertion import rewrite
File "/usr/local/lib/python3.5/dist-packages/_pytest/assertion/rewrite.py", line 24, in <module>
from _pytest.assertion import util
File "/usr/local/lib/python3.5/dist-packages/_pytest/assertion/util.py", line 14, in <module>
import _pytest._code
File "/usr/local/lib/python3.5/dist-packages/_pytest/_code/__init__.py", line 2, in <module>
from .code import Code # noqa
File "/usr/local/lib/python3.5/dist-packages/_pytest/_code/code.py", line 28, in <module>
import pluggy
File "/usr/local/lib/python3.5/dist-packages/pluggy/__init__.py", line 16, in <module>
from .manager import PluginManager, PluginValidationError
File "/usr/local/lib/python3.5/dist-packages/pluggy/manager.py", line 11, in <module>
import importlib_metadata
File "/usr/local/lib/python3.5/dist-packages/importlib_metadata/__init__.py", line 9, in <module>
import zipp
ImportError: No module named 'zipp'
The command "test/travis-build.sh" exited with 1.
[*] https://travis-ci.org/libfuse/libfuse/builds/651523034
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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tst_rmdir and tst_unlink now pass for passthrough_hp.
Previously, tst_rmdir and tst_unlink created the directory / file
using src_dir, causing the test to fail as the cache was stale.
Now, the src_dir is optional. When cache is enabled, tst_rmdir
and tst_unlink do not provide a src_dir, forcing the test to
use mnt_dir itself.
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This currently causes hangs if the test fails, cf issue #459.
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Recent GCC releases have warnings related to common strncpy(3) bugs.
These warnings can be avoided by explicitly NUL-terminating the buffer
or using memcpy(3) when the intention is to copy just the characters
without the NUL terminator.
This commit fixes the following warnings:
[1/27] Compiling C object 'test/9f86d08@@test_syscalls@exe/test_syscalls.c.o'.
In function ‘test_socket’,
inlined from ‘main’ at ../test/test_syscalls.c:1899:9:
../test/test_syscalls.c:1760:2: warning: ‘strncpy’ output may be truncated copying 108 bytes from a string of length 1023 [-Wstringop-truncation]
1760 | strncpy(su.sun_path, testsock, sizeof(su.sun_path));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[2/27] Compiling C object 'lib/76b5a35@@fuse3@sha/fuse.c.o'.
../lib/fuse.c: In function ‘add_name’:
../lib/fuse.c:968:2: warning: ‘strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
968 | strncpy(s, name, len);
| ^~~~~~~~~~~~~~~~~~~~~
../lib/fuse.c:944:15: note: length computed here
944 | size_t len = strlen(name);
| ^~~~~~~~~~~~
[3/27] Compiling C object 'lib/76b5a35@@fuse3@sha/fuse_lowlevel.c.o'.
../lib/fuse_lowlevel.c: In function ‘fuse_add_direntry’:
../lib/fuse_lowlevel.c:288:2: warning: ‘strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
288 | strncpy(dirent->name, name, namelen);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../lib/fuse_lowlevel.c:276:12: note: length computed here
276 | namelen = strlen(name);
| ^~~~~~~~~~~~
../lib/fuse_lowlevel.c: In function ‘fuse_add_direntry_plus’:
../lib/fuse_lowlevel.c:381:2: warning: ‘strncpy’ output truncated before terminating nul copying as many bytes from a string as its length [-Wstringop-truncation]
381 | strncpy(dirent->name, name, namelen);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../lib/fuse_lowlevel.c:366:12: note: length computed here
366 | namelen = strlen(name);
| ^~~~~~~~~~~~
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Readdir caching means that direct modifications to the source
directory will not be seen immediately, so the test becomes flaky.
Fixes: #416.
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We are no longer using the capfd mechanism.
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py.test's capture plugin does not work reliably when used by
other fixtures. Therefore, implement our own version.
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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.
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passthrough_hp puts emphasis and performance and correctness, rather
than simplicity.
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sprintf(3)/snprintf(3) destination buffers need to be large enough
so that gcc doesn't warn -Wformat-truncation= or -Wformat-overflow=
when source buffer size is 1024 bytes.
--
../test/test_syscalls.c:1445:47: warning: '%s' directive output may be truncated writing 1 byte into a region of size between 0 and 1023 [-Wformat-truncation=]
#define PATH(p) (snprintf(path, sizeof path, "%s/%s", testdir, p), path)
^~~~~~~
../test/test_syscalls.c:1458:19:
res = mkdir(PATH("a"), 0755);
~~~
Signed-off-by: Tomohiro Kusumi <kusumi.tomohiro@gmail.com>
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There is no gcc-6 package anymore.
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The unprivileged option allows to run the FUSE file system process
without privileges by dropping capabilities and preventing them from
being re-acquired via setuid / fscaps etc. To accomplish this,
mount.fuse sets up the `/dev/fuse` file descriptor and mount itself
and passes the file descriptor via the `/dev/fd/%u` mountpoint syntax
to the FUSE file system.
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Using fuse_session_exit() followed by fuse_session_unmount() ensures
that a proper cleanup and shutdown is performed.
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The bug occurs when a filesystem client reads a directory until the end,
seeks using seekdir() to some valid non-zero position and calls
readdir(). A valid 'struct dirent *' is expected, but NULL is returned
instead. Pseudocode demonstrating the bug:
DIR *dp = opendir("some_dir");
struct dirent *de = readdir(dp);
/* Get offset of the second entry */
long offset = telldir(dp);
/* Read directory until the end */
while (de)
de = readdir(de);
seekdir(dp, offset);
de = readdir(dp);
/* de must contain the second entry, but NULL is returned instead */
The reason of the bug is that when the end of directory is reached, the
kernel calls FUSE_READDIR op with an offset at the end of directory, so
the filesystem's .readdir callback never calls the filler function, and
we end up with dh->filled set to 1. After seekdir(), FUSE_READDIR is
called again with a new offset, but this time the filesystem's .readdir
callback is never called, and an empty reply is returned.
Fix by setting dh->filled to 1 only when zero offsets are given to
filler function.
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Fixes: #224
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Linux performs the dir loop check (rename(a, a/b/c)
or rename(a/b/c, a), etc.) in kernel. Unfortunately
other systems do not perform this check (e.g. FreeBSD).
This results in a deadlock in get_path2, because libfuse
did not expect to handle such cases.
We add a check_dir_loop function that performs the dir
loop check in user mode and enable it on systems that
need it.
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Newest Meson requires Python 3.5 which isn't available in Trusty.
Pip version pin no longer necessary.
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DragonFlyBSD has no "bsd" in uname, so add 'dragonfly' to conditionals.
-- e.g. uname(1) in DragonFlyBSD
[root@ ~]# uname
DragonFly
[root@ ~]# python -c "import sys; print(sys.platform)"
dragonfly5
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Travis support recommends to install specific pip
version to work around problems in new environment.
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This seems to be unsupported. However, me may also be
doing it wrong. I've asked on the freebsd-fs list for help.
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It's just too much pain to keep it working.
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That way, we run only tests that are supported by the running kernel.
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The previous name didn't make much sense.
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We re-introduce the functionality of invalidating the caches for an
inode specified by path by adding a new routine
fuse_invalidate_path. This is useful for network-based file systems
which use the high-level API, enabling them to notify the kernel about
external changes.
This is a revival of Miklos Szeredi's original code for the
fuse_invalidate routine.
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Preserving other attributes doesn't hurt, and --preserve
is not supported under FreeBSD.
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Doesn't work on FreeBSD, and not strictly necessary.
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