In my scenario, the ntfs prober did *not* detect the presence of a
ntfs filesystem (i.e. vol_id --probe-all returned *only* ext3).
However, if you examine the source of the ntfs prober, it overwrites
the uuid field of the volume_id object long before it actually
decides there's a valid filesystem there - this resulted in vol_id
returning the rather bizarre combination of type=ext3, but a uuid
populated by the ntfs prober.
https://bugs.edge.launchpad.net/ubuntu/+source/udev/+bug/337015
The version string in DDF suberblock does not include the null terminator
and the snprintf() function writes at most "size" bytes *including* the
null byte.
old version:
ID_FS_VERSION=02.00.0
new version:
ID_FS_VERSION=02.00.00
Signed-off-by: Karel Zak <kzak@redhat.com>
[...] running the command
`make maintainer-clean' should not delete `configure' even if
`configure' can be remade using a rule in the Makefile. More
generally, `make maintainer-clean' should not delete anything that
needs to exist in order to run `configure' and then begin to build
the program. This is the only exception; `maintainer-clean' should
delete everything else that can be rebuilt.
* fix typo (hs vs. hbb)
* set id->{version,usage,type} when all tests pass
* be paranoid and don't use hs->version when "hs" source buffer was
possibly modified by next volume_id_get_buffer() call.
Signed-off-by: Karel Zak <kzak@redhat.com>
On Thu, Nov 20, 2008 at 14:17, Karel Zak <kzak@redhat.com> wrote:
> I see the patch (volume_id_probe_filesystem()) and a few things come
> to mind:
>
> - shouldn't be the relevant parts (label, uuid, version, ...) of
> the "struct volume_id" zeroized when you found a signature and
> before you call the next probing function?
>
> - it seems as overkill to use two for()s and probe two times for all
> filesystems. What about to store the first result and re-use it?
>
> - .. or at least never use the second for() when the fist for() found
> nothing ;-)
We probe for all known filesystems to find conflicting signatures. If
we find multiple matching signatures and one of the detected filesystem
types claims that it can not co-exist with any other filesystem type,
we do not return a probing result.
We can not afford to mount a volume with the wrong filesystem code and
possibly corrupt it. Linux ssytems have the problem of dozens of possible
filesystem types, and volumes with left-over signatures from former
filesystem types. Invalid signature need to be removed from the volume
to make the filesystem detection successful.
We do not want to read that many bytes from probed floppies, skip volumes
smaller than a usual floppy disk.
Use calloc to request cleared memory instead.
Kernel and libc conspire to make this more efficient.
Also, replace one malloc() + strcpy() with strdup().
Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
"Hello world!" linked against libselinux parses /proc/mounts and
whatever else on startup, even when the lib is not needed at all.
Not funny! Get rid of that thing where it's not absolutely needed.
