Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Don't use ino_t in dumprestore protocol definition.

Since ino_t size is about to change to 64-bits, replace ino_t used in
dump protocol definition with 32-bit dump_ino_t to preserve backward
compatibility. At some point, it may be necessary to use spare fields
in struct in order to fully support 64-bit inode numbers.

Sponsored by: Google Summer of Code 2011

Remove clause 3 from Berkeley copyrights. Add a few $FreeBSD$'s.

Expand dump to allow MAX_INT dump levels.

PR: bin/100732
Submitted by: Matthew Vincenz <msvincen@midway.uchicago.edu>

Update the dump program to save extended attributes. Update
the restore program to restore all dumped extended attributes.

If the restore is running as root, it will always be able
to restore all extended attributes. If it is not running
as root, it makes a best effort to set them. Using the -v
command line flag or the `verbose' command in interactive
mode will display all the extended attributes being set on
files (and at the end on directories) that are being restored.
It will note any extended attributes that could not be set.

The extended attributes are placed on the dump image immediately
following each file's data. Older versions of restore can work
with the newer dump images. Old versions of restore will
correctly restore the file data and then (silently) skip
over the extended attribute data and proceed to the next file.

This resolves PR 93085 which will be closed once the code
has been MFC'ed.

Note that this code will not compile until these header
files have been updated: <protocols/dumprestore.h> and
<sys/extattr.h>.

PR: bin/93085
Comments from: Poul-Henning Kamp and Robert Watson
MFC after: 3 weeks

Change utimes to set the file creation time (for filesystems that
support creation times such as UFS2) to the value of the
modification time if the value of the modification time is older
than the current creation time. See utimes(2) for further details.

Sponsored by: DARPA & NAI Labs.

This commit adds basic support for the UFS2 filesystem. The UFS2
filesystem expands the inode to 256 bytes to make space for 64-bit
block pointers. It also adds a file-creation time field, an ability
to use jumbo blocks per inode to allow extent like pointer density,
and space for extended attributes (up to twice the filesystem block
size worth of attributes, e.g., on a 16K filesystem, there is space
for 32K of attributes). UFS2 fully supports and runs existing UFS1
filesystems. New filesystems built using newfs can be built in either
UFS1 or UFS2 format using the -O option. In this commit UFS1 is
the default format, so if you want to build UFS2 format filesystems,
you must specify -O 2. This default will be changed to UFS2 when
UFS2 proves itself to be stable. In this commit the boot code for
reading UFS2 filesystems is not compiled (see /sys/boot/common/ufsread.c)
as there is insufficient space in the boot block. Once the size of the
boot block is increased, this code can be defined.

Things to note: the definition of SBSIZE has changed to SBLOCKSIZE.
The header file <ufs/ufs/dinode.h> must be included before
<ufs/ffs/fs.h> so as to get the definitions of ufs2_daddr_t and
ufs_lbn_t.

Still TODO:
Verify that the first level bootstraps work for all the architectures.
Convert the utility ffsinfo to understand UFS2 and test growfs.
Add support for the extended attribute storage. Update soft updates
to ensure integrity of extended attribute storage. Switch the
current extended attribute interfaces to use the extended attribute
storage. Add the extent like functionality (framework is there,
but is currently never used).

Sponsored by: DARPA & NAI Labs.
Reviewed by: Poul-Henning Kamp <phk@freebsd.org>

Use explicitly sized fields for the tape format definition.

Sponsored by: DARPA & NAI Labs.

Make the protocol/dumprestore.h header match restore's idea of the dump
header for the case where sizeof(time_t) != sizeof(int). dumprestore.h
was embedding time_t when it should have been embedding int32_t.

Use time_to_time32() and time32_to_time() to convert between the
protocoll/file-format time and time_t.

16 characters for the device name in /etc/dumpdates is not long
enough, particularly when using vinum. Allow 32 characters
(arbitrary, I know) instead.

PR: bin/11433

64bit fixes.
(Note: ``dump'' doesn't work on alpha yet. Apparently there's a problem
somewhere is the physio() area)

Submitted by: myself && Matt Dillon.

Back out all of yesterdays include file changes.

Make a lot of include-files self-contained. I excluded the patches changing
int's to gid_t and uid_t - should I commit these, too?

Closes PR misc/2625.

Submitted by: Julian Assange <proff@iq.org>

Changed idempotent strings to reflect directory area.
Reviewed by:
Submitted by:

This commit was generated by cvs2svn to compensate for changes in r1539,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite Include Sources