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author | Miklos Szeredi <mszeredi@suse.cz> | 2014-07-21 18:53:04 +0200 |
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committer | Miklos Szeredi <mszeredi@suse.cz> | 2014-07-21 18:53:04 +0200 |
commit | e3b7d4c278a26520be63d99d6ea84b26906fe73d (patch) | |
tree | cb1c7173562dca7f4ecf114723a2c3b5fd28b1d3 | |
parent | 7914d3a435705dd6cf876e9a704557d7632d3cec (diff) | |
download | fuse-e3b7d4c278a26520be63d99d6ea84b26906fe73d.tar.gz |
libfuse: highlevel API: fix directory file handle passed to ioctl() method
Reported by Eric Biggers
-rw-r--r-- | ChangeLog | 5 | ||||
-rw-r--r-- | include/fuse.h | 3 | ||||
-rw-r--r-- | lib/fuse.c | 10 |
3 files changed, 16 insertions, 2 deletions
@@ -1,3 +1,8 @@ +2014-07-21 Miklos Szeredi <miklos@szeredi.hu> + + * libfuse: highlevel API: fix directory file handle passed to + ioctl() method. Reported by Eric Biggers + 2014-07-15 Miklos Szeredi <miklos@szeredi.hu> * libfuse: document deadlock avoidance for diff --git a/include/fuse.h b/include/fuse.h index bf86bda..e16104c 100644 --- a/include/fuse.h +++ b/include/fuse.h @@ -483,6 +483,9 @@ struct fuse_operations { * _IOC_READ in area and if both are set in/out area. In all * non-NULL cases, the area is of _IOC_SIZE(cmd) bytes. * + * If flags has FUSE_IOCTL_DIR then the fuse_file_info refers to a + * directory file handle. + * * Introduced in version 2.8 */ int (*ioctl) (const char *, int cmd, void *arg, @@ -4106,12 +4106,13 @@ static void fuse_lib_bmap(fuse_req_t req, fuse_ino_t ino, size_t blocksize, } static void fuse_lib_ioctl(fuse_req_t req, fuse_ino_t ino, int cmd, void *arg, - struct fuse_file_info *fi, unsigned int flags, + struct fuse_file_info *llfi, unsigned int flags, const void *in_buf, size_t in_bufsz, size_t out_bufsz) { struct fuse *f = req_fuse_prepare(req); struct fuse_intr_data d; + struct fuse_file_info fi; char *path, *out_buf = NULL; int err; @@ -4119,6 +4120,11 @@ static void fuse_lib_ioctl(fuse_req_t req, fuse_ino_t ino, int cmd, void *arg, if (flags & FUSE_IOCTL_UNRESTRICTED) goto err; + if (flags & FUSE_IOCTL_DIR) + get_dirhandle(llfi, &fi); + else + fi = *llfi; + if (out_bufsz) { err = -ENOMEM; out_buf = malloc(out_bufsz); @@ -4136,7 +4142,7 @@ static void fuse_lib_ioctl(fuse_req_t req, fuse_ino_t ino, int cmd, void *arg, fuse_prepare_interrupt(f, req, &d); - err = fuse_fs_ioctl(f->fs, path, cmd, arg, fi, flags, + err = fuse_fs_ioctl(f->fs, path, cmd, arg, &fi, flags, out_buf ?: (void *)in_buf); fuse_finish_interrupt(f, req, &d); |