2019-03-03 23:26:20 -05:00
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/*
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2026-02-23 13:22:21 -06:00
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ISC License
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Copyright (c) 2026, Antonio SJ Musumeci <trapexit@spawn.link>
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2019-03-03 23:26:20 -05:00
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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2025-07-25 17:53:48 -05:00
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#include "fuse_fchmod.hpp"
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2019-03-03 23:26:20 -05:00
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#include "errno.hpp"
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#include "fileinfo.hpp"
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2020-08-17 16:29:22 -04:00
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#include "fs_fchmod.hpp"
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2025-06-05 23:47:42 -05:00
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#include "state.hpp"
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2019-03-03 23:26:20 -05:00
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2020-12-19 15:06:08 -05:00
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#include "fuse.h"
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2019-03-03 23:26:20 -05:00
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2025-07-25 17:53:48 -05:00
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static
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int
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_fchmod(const int fd_,
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const mode_t mode_)
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2019-03-03 23:26:20 -05:00
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{
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2025-07-25 17:53:48 -05:00
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int rv;
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2019-03-03 23:26:20 -05:00
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2025-07-25 17:53:48 -05:00
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rv = fs::fchmod(fd_,mode_);
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2019-03-03 23:26:20 -05:00
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2025-07-25 17:53:48 -05:00
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return rv;
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2019-03-03 23:26:20 -05:00
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}
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2025-07-25 17:53:48 -05:00
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int
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2025-10-13 00:21:36 -04:00
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FUSE::fchmod(const fuse_req_ctx_t *ctx_,
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2026-03-22 08:39:06 -05:00
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cu64 fh_,
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const mode_t mode_)
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2019-03-03 23:26:20 -05:00
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{
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FUSE: require valid file/dir handle; drop open_files fallback
Several FUSE ops fell back to looking up a FileInfo via
state.open_files when the kernel-provided fh was zero, returning
-ENOENT if the lookup failed. This path papered over handle-tracking
bugs and added cost on every call. Use the handle directly and
return -EBADF when it is invalid - the kernel should always hand us
a valid fh for an open resource.
Also simplify FileInfo::from_fh / DirInfo::from_fh and their to_fh
helpers: callers now handle the null-pointer case explicitly so the
ASSERT_NOT_NULL checks are redundant.
Covers fallocate, fchmod, fchown, fgetattr, flock, ftruncate,
futimens, read, release, releasedir, write, statx, ioctl (file +
dir), readdir (sequential, concurrent-on-read,
concurrent-on-search), and the passthrough fast paths in
create/open.
2026-04-18 00:53:11 -04:00
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FileInfo *fi = FileInfo::from_fh(fh_);
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2025-07-25 17:53:48 -05:00
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FUSE: require valid file/dir handle; drop open_files fallback
Several FUSE ops fell back to looking up a FileInfo via
state.open_files when the kernel-provided fh was zero, returning
-ENOENT if the lookup failed. This path papered over handle-tracking
bugs and added cost on every call. Use the handle directly and
return -EBADF when it is invalid - the kernel should always hand us
a valid fh for an open resource.
Also simplify FileInfo::from_fh / DirInfo::from_fh and their to_fh
helpers: callers now handle the null-pointer case explicitly so the
ASSERT_NOT_NULL checks are redundant.
Covers fallocate, fchmod, fchown, fgetattr, flock, ftruncate,
futimens, read, release, releasedir, write, statx, ioctl (file +
dir), readdir (sequential, concurrent-on-read,
concurrent-on-search), and the passthrough fast paths in
create/open.
2026-04-18 00:53:11 -04:00
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if(not fi)
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return -EBADF;
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2019-03-03 23:26:20 -05:00
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2025-07-25 17:53:48 -05:00
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return ::_fchmod(fi->fd,mode_);
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2019-03-03 23:26:20 -05:00
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}
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