Commit Graph

68 Commits

Author SHA1 Message Date
Poul-Henning Kamp
e9a848359b Include <sys/diskmbr.h> instead of <sys/disklabel.h>
Sponsored by:	DARPA & NAI Labs.
2002-10-01 14:05:06 +00:00
Poul-Henning Kamp
4ae677009e Style, whitespace and lint fixes.
Sponsored by:	DARPA & NAI Labs.
2002-09-28 11:57:20 +00:00
Poul-Henning Kamp
5a6baf5457 Add the new g_slice_config() call, which can add/delete/change a slice,
with support for trying, doing and forcing.

This will eventually replace g_slice_addslice() which gets changed from
grabbing topology to requing it in this commit as well.

Sponsored by:   DARPA & NAI Labs.
2002-09-27 21:37:11 +00:00
Poul-Henning Kamp
fbbdde85f8 Deal with a new exteded MBR paritition type
Submitted by:	Michal Mertl <mime@traveller.cz>
2002-09-08 15:13:33 +00:00
Poul-Henning Kamp
4fbd12689a Remove "magicspace". It looks good on paper, it doesn't work in practice.
Sponsored by: DARPA & NAI Labs.
2002-09-06 08:50:28 +00:00
Poul-Henning Kamp
11b2dcdbbe Put geom_gpt.c under the GEOM option instead of having a special GEOM_GPT
option for it.
2002-06-10 18:49:41 +00:00
Poul-Henning Kamp
503abe4540 Improve some on the naming.
Submitted by:	iedowse
2002-06-09 10:57:34 +00:00
Poul-Henning Kamp
678735da39 Change the registration of magic spaces so it does its own memory management.
Sponsored by: DARPA & NAI Labs.
2002-06-05 20:30:36 +00:00
Marcel Moolenaar
bcd46c600a Add support to GEOM for GUID Partition Tables (GPTs). The support
is currently conditional on both the GEOM and GEOM_GPT options to
avoid getting GPT by default and having the MBR and GPT classes
clash.
The correct behaviour of the MBR class would be to back-off (reject)
a MBR if it's a Protective MBR (a MBR with a single partition of type
0xEE that spans the whole disk (as far as the MBR is concerned).
The correct behaviour if the GPT class would be to back-off (reject)
a GPT if there's a MBR that's not a Protective MBR.

At this stage it's inconvenient to destroy a good MBR when working
with GPTs that it's more convenient to have the MBR class back-off
when it detects the GPT signature on disk and have the GPT class
ignore the MBR.

In sys/gpt.h UUIDs (GUIDs) for the following FreeBSD partitions
have been defined:

GPT_ENT_TYPE_FREEBSD
	FreeBSD slice with disklabel. This is the equivalent of
	the well-known FreeBSD MBR partition type.
GPT_ENT_TYPE_FREEBSD_{SWAP|UFS|UFS2|VINUM}
	FreeBSD partitions in the context of disklabel. This is
	speculating on the idea to use the GPT to hold partitions
	instead if slices and removing the fixed (and low) limits
	we have on the number of partitions.

This commit lacks a GPT image for the regression suite.
2002-05-28 09:04:48 +00:00
Poul-Henning Kamp
07107de9bc Introduce the concept of "magic spaces", and implement them in most of
the relevant classes.

Some methods may implement various "magic spaces", this is reserved
or magic areas on the disk, set a side for various and sundry purposes.
A good example is the BSD disklabel and boot code on i386 which occupies
a total of four magic spaces: boot1, the disklabel, the padding behind
the disklabel and boot2.  The reason we don't simply tell people to
write the appropriate stuff on the underlying device is that (some of)
the magic spaces might be real-time modifiable.  It is for instance
possible to change a disklabel while partitions are open, provided
the open partitions do not get trampled in the process.

Sponsored by:	DARPA & NAI Labs.
2002-05-21 20:33:49 +00:00
Poul-Henning Kamp
3abe4a80a5 Remove the "-class" suffix from classes, they will not be ambiguous.
Sponsored by:	DARPA & NAI Labs.
2002-05-21 19:50:04 +00:00
Poul-Henning Kamp
1bdb20a68e Implement DIOCGFRONTSTUFF ioctl which reports how many bytes from the start
of the device magic stuff might occupy.

Sponsored by: DARPA & NAI Labs.
2002-04-09 15:43:32 +00:00
Poul-Henning Kamp
07d77fc610 Move access and orphan member functions from class to geom.
Sponsored by: DARPA & NAI Labs
2002-04-04 09:54:13 +00:00
Poul-Henning Kamp
4c0a424c67 In the absense of any smarter way to do this, cast various printf
arguments to silence printf format warnings.
2002-03-28 10:09:24 +00:00
Poul-Henning Kamp
b1876192f0 Eliminate some thread pointers which do not make sense anymore.
Split private parts of geom.h into geom_int.h.  The latter should
never be included in class implemtations.
2002-03-26 22:07:38 +00:00
Poul-Henning Kamp
e805e8f0e8 Cave in to tradition and rename "methods" to "classes". 2002-03-26 21:40:06 +00:00
Poul-Henning Kamp
3773a65c0b Be more systematic about conversion of on-disk formats in a endian/width
agnostic way.

Collapse the MBR and MBREXT methods into one file and make them endian/width
agnostic.

Sponsored by:	DARPA & NAI Labs.
2002-03-24 11:21:41 +00:00
Poul-Henning Kamp
dd84a43c1d First commit of the GEOM subsystem to make it easier for people to
test and play with this.

This is not yet production quality and should be run only on dedicated
test boxes.

For people who want to develop transformations for GEOM there exist a
set of shims to run geom in userland (ask phk@freebsd.org).

Reports of all kinds to: phk@freebsd.org
Please include in report:
        dmesg
        sysctl debug.geomdot
        sysctl debug.geomconf

Known significant limitations:
        no kernel dump facility.
        ioctls severely restricted.

Sponsored by:   DARPA, NAI Labs
2002-03-11 21:42:35 +00:00