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Opened on 04/30/08 at 19:44:19
Last modified on 03/13/12 at 11:08:15
#1286 closed defect (fixed)
[imfs] cannot access long filenames in directory mounted on IMFS mountpoint
| Reported by: | strauman | Owned by: | Chris Johns |
|---|---|---|---|
| Priority: | normal | Milestone: | 4.10 |
| Component: | fs | Version: | 4.9 |
| Severity: | normal | Keywords: | |
| Cc: | chrisj@…, sebastian.huber@…, sebastien.bourdeauducq@… | Blocked By: | |
| Blocking: |
Description
It seems that IMFS_eval_path() looks at the name of a path name component
(IMFS_get_token() does that) *before* deciding that the current
node is a (imfs) directory with another filesystem mounted and that
it should call that filesystem's eval_path_h() method to evaluate
the name component.
This means that a filename that is perfectly legal in the
mounted filesystem cannot be accessed because IMFS_get_token()
rejects it.
How to reproduce:
on NFS server create /export/thisisalongfilenamewithmorethan32chars
on RTEMS mount
nfsMount("nfsServer","/export","/mntpt")
an attempt to access "/mntpt/thisisalongfilenamewithmorethan32chars"
fails (ENAMETOOLONG).
Workaround: create a short named (IMFS-compliant) dummy directory between the
mount point and the long filenames, e.g.:
on NFS server create /export/dummy/thisisalongfilenamewithmorethan32chars
on RTEMS mount
nfsMount("nfsServer","/export","/mntpt")
access "/mntpt/dummy/thisisalongfilenamewithmorethan32chars"
should succeed.
Change History (5)
comment:1 Changed on 05/29/10 at 04:05:38 by Chris Johns
| Owner: | changed from Joel Sherrill to Chris Johns |
|---|---|
| Status: | new → assigned, chrisj@rtems.org |
comment:2 Changed on 05/29/10 at 04:06:02 by Chris Johns
| Milestone: | 4.9 → 4.10 |
|---|
comment:3 Changed on 12/02/10 at 20:49:24 by Sebastien Bourdeauducq
| Cc: | Sebastien Bourdeauducq added |
|---|
comment:4 Changed on 06/20/11 at 22:00:11 by Chris Johns
| dependson: | → 1774 |
|---|
comment:5 Changed on 03/13/12 at 11:08:15 by Sebastian Huber
| Resolution: | → fixed |
|---|---|
| Status: | assigned → closed, sebastian.huber@embedded-brains.de |
Fixed also with
http://git.rtems.org/rtems/commit/?id=3b7c123c8d910eb60ab3b38dec6224e2de9847c9