diff options
| author | gandalfs_cat <meow@kittcat.dev> | 2024-06-23 04:28:30 -0700 |
|---|---|---|
| committer | Bernd Schubert <bernd.schubert@fastmail.fm> | 2024-07-03 12:50:06 +0200 |
| commit | 54b8cd6757ed383c0da10a5ba6a778dd45f28ad6 (patch) | |
| tree | 04a238edd22081fc047baf83022a51de01d1a5aa /lib/fuse.c | |
| parent | f88e08f34d2d4f398f23797707e1c50cd306e405 (diff) | |
| download | libfuse-54b8cd6757ed383c0da10a5ba6a778dd45f28ad6.tar.gz | |
high-level: add fmask and dmask options
dmask: umask applied to directories
fmask: umask applied to non-directories
to get "typical" permission bits for regular files (0644) and directories (0755), a single
umask option is not sufficient (or well, it isn't the way fuse implements it)
there is precident for separate umask and dmask options in other
filesystems (see for example fat: https://github.com/torvalds/linux/tree/master/fs/fat)
this addition should not affect backward-compatibility; the original
umask option retains the same meaning, but non-zero fmask or
dmask will override it.
Diffstat (limited to 'lib/fuse.c')
| -rw-r--r-- | lib/fuse.c | 20 |
1 files changed, 17 insertions, 3 deletions
@@ -1487,9 +1487,17 @@ static void set_stat(struct fuse *f, fuse_ino_t nodeid, struct stat *stbuf) { if (!f->conf.use_ino) stbuf->st_ino = nodeid; - if (f->conf.set_mode) - stbuf->st_mode = (stbuf->st_mode & S_IFMT) | - (0777 & ~f->conf.umask); + if (f->conf.set_mode) { + if (f->conf.dmask && S_ISDIR(stbuf->st_mode)) + stbuf->st_mode = (stbuf->st_mode & S_IFMT) | + (0777 & ~f->conf.dmask); + else if (f->conf.fmask) + stbuf->st_mode = (stbuf->st_mode & S_IFMT) | + (0777 & ~f->conf.fmask); + else + stbuf->st_mode = (stbuf->st_mode & S_IFMT) | + (0777 & ~f->conf.umask); + } if (f->conf.set_uid) stbuf->st_uid = f->conf.uid; if (f->conf.set_gid) @@ -4681,6 +4689,10 @@ static const struct fuse_opt fuse_lib_opts[] = { FUSE_LIB_OPT("no_rofd_flush", no_rofd_flush, 1), FUSE_LIB_OPT("umask=", set_mode, 1), FUSE_LIB_OPT("umask=%o", umask, 0), + FUSE_LIB_OPT("fmask=", set_mode, 1), + FUSE_LIB_OPT("fmask=%o", fmask, 0), + FUSE_LIB_OPT("dmask=", set_mode, 1), + FUSE_LIB_OPT("dmask=%o", dmask, 0), FUSE_LIB_OPT("uid=", set_uid, 1), FUSE_LIB_OPT("uid=%d", uid, 0), FUSE_LIB_OPT("gid=", set_gid, 1), @@ -4734,6 +4746,8 @@ void fuse_lib_help(struct fuse_args *args) " -o [no]auto_cache enable caching based on modification times (off)\n" " -o no_rofd_flush disable flushing of read-only fd on close (off)\n" " -o umask=M set file permissions (octal)\n" +" -o fmask=M set file permissions (octal)\n" +" -o dmask=M set dir permissions (octal)\n" " -o uid=N set file owner\n" " -o gid=N set file group\n" " -o entry_timeout=T cache timeout for names (1.0s)\n" |