[Bug 263625] FUSE_CREATE is broken on anything older than protocol version 7.9
Date: Thu, 28 Apr 2022 09:42:39 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263625 Bug ID: 263625 Summary: FUSE_CREATE is broken on anything older than protocol version 7.9 Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: firstname.lastname@example.org Created attachment 233558 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=233558&action=edit Fix FUSE_CREATE compat entry size read While porting webdav fuse filesystem to FreeBSD, which uses protocol version 7.5, I noticed that FUSE_CREATE always fails. After digging into the code, I noticed that on FUSE_CREATE, the cast of fuse_open_out to fuse_entry_out has the wrong offset for protocol versions prior to 7.9. AFAIK, prior to 7.9 version, fuse_attr didn't have blksize and padding fields, so FUSE_COMPAT_ENTRY_OUT_SIZE offset should be used instead in this case. The attached patch should fix the issue. -- You are receiving this mail because: You are the assignee for the bug.