Commit Graph

38 Commits

Author SHA1 Message Date
Andrey V. Elsukov
d4746e107f Always reconstruct partition entries in the PMBR when Boot Camp is
disabled. This helps to easily recover from situations when PMBR is
damaged and contains no entries.

MFC after:	1 week
2012-06-14 11:17:54 +00:00
Marcel Moolenaar
f24a8224b2 Add a partition type for nandfs to the apm, bsd, gpt and vtoc8 schemes.
The gpart alias for these partition types is "freebsd-nandfs".
2012-05-25 20:33:34 +00:00
Dmitry Morozovsky
b20e4de387 VMware environments are not unusual now. Add VMware partitions recognition
(both MBR for ESXi <= 4.1 and GPT for ESXi 5) to g_part.

Reviewed by:	ae
Approved by:	ae
MFC after:	2 weeks
2012-04-18 11:59:03 +00:00
Marcel Moolenaar
369fe59de8 Add support for Boot Camp. The support is defined as follows:
o   Detect when Boot Camp is enabled (i.e. the MBR mirrors the GPT).
o   When Boot Camp is enabled, update the MBR whenever we write the GPT.
o   Creation of a Boot Camp enabled GPT is not supported.
o   Automatically disable Boot Camp when the GPT has been changed so that
    there's either no EFI partition or no HFS+ partition.
o   The first 4 partitions (by index) get mirrored in the MBR.

Requested by, discussed with and tested by: kris@pcbsd.org
MFC after: 1 week
2011-10-23 02:51:23 +00:00
Andrey V. Elsukov
2b9be05588 Initialize elements of state array when creating the GPT table.
This fixes the problem, when the secondary GPT header is not erased when
partition table destroyed. Move equal operations from g_part_gpt_create
and g_part_gpt_recover to the separate function g_gpt_set_defaults.

Reported by:	dwhite
MFC after:	1 week
2011-06-29 05:41:14 +00:00
Alexander Leidinger
cb08c2cc83 Add some FEATURE macros for various GEOM classes.
No FreeBSD version bump, the userland application to query the features will
be committed last and can serve as an indication of the availablility if
needed.

Sponsored by:	Google Summer of Code 2010
Submitted by:	kibab
Reviewed by:	silence on geom@ during 2 weeks
X-MFC after:	to be determined in last commit with code from this project
2011-02-25 10:24:35 +00:00
Andrey V. Elsukov
88007f6102 Add new user-friendly aliases for partition types for the MBR and
EBR schemes: fat32, ebr, linux-data, linux-raid, linux-swap and
linux-lvm. Add bios-boot GUID and alias for the GPT scheme. It used by
GRUB 2 loader. Also do sorting definitions of types in diskmbr.h
and in g_part.c.

PR:		bin/120990, kern/147664
MFC after:	2 weeks
2011-01-28 11:13:01 +00:00
Andrey V. Elsukov
799eac8c3d Limit maximum number of GPT entries to 4k. It is most realistic value
and can prevent kernel memory exhausting when big value is specified
from command line.

Split reading and writing operation to several iteration to do not
trigger KASSERT when data length is greater than MAXPHYS.

PR:             kern/144962, kern/147851
MFC after:      2 weeks
2011-01-18 09:52:53 +00:00
Matthew D Fleming
ed7beddc48 Fix a memory overflow where the input length to g_gpt_utf8_to_utf16()
was specified incorrectly, causing the bzero to run past the end of a
malloc(9)'d object.

Submitted by:	Eric Youngblut < eyoungblut AT isilon DOT com >
MFC after:	3 days
2011-01-07 16:46:20 +00:00
Andrey V. Elsukov
e7926a3703 Reimplemented "gpart destroy -F". Now it does all work in kernel.
This was needed for recover implementation.

Implement the recover command for GPT. Now GPT will marked as
corrupt when any of three types of corruption will be detected:
1. Damaged primary GPT header or table
2. Damaged secondary GPT header or table
3. Secondary header is not located in the last LBA
Marked GPT becomes read-only. Any changes with corrupt table
are prohibited. Only "destroy" and "recover" commands are allowed.

Discussed with:	geom@ (mostly silence)
Tested by:	Ilya A. Arhipov
Approved by:	mav (mentor)
MFC after:	2 weeks
2010-10-25 16:23:35 +00:00
Pawel Jakub Dawidek
cec283baf4 Allow to configure GPT attributes. It shouldn't be allowed to set bootfailed
attribute (it should be allowed only to unset it), but for test purposes it
might be useful, so the current code allows it.

Reviewed by:	arch@ (Message-ID: <20100917234542.GE1902@garage.freebsd.pl>)
MFC after:	2 weeks
2010-09-24 19:33:47 +00:00
Marius Strobl
36066952e5 Don't leak memory on destruction.
Reviewed by:	marcel
MFC after:	3 days
2010-06-02 17:17:11 +00:00
Marcel Moolenaar
3f71c319f4 Implement the resize verb and add support for resizing partitions
for all schemes but EBR. Quality work by Andrey!

Submitted by:	"Andrey V. Elsukov" <bu7cher@yandex.ru>
2010-04-23 03:11:39 +00:00
Marcel Moolenaar
cd18ad8347 Export the UUID of the partition in the XML. The partition UUID is used
by EFI's device path to identify a partition. In order for FreeBSD to
add EFI boot options, proper device paths need to be constructed.
2010-01-30 23:13:19 +00:00
Marcel Moolenaar
665bb830e2 Properly return the UUID represented by the alias.
PR:		142174
Submitted by:	Przemyslaw Laczynski <torindel@gmail.com>
Pointy hat to:	rpaulo
2010-01-02 01:02:59 +00:00
Rui Paulo
33f7a4124d Add Microsoft and NetBSD partition types handling. 2009-12-14 20:26:27 +00:00
Rui Paulo
f13174303d Simplify partition type parsing by using a data-oriented model.
While there add more Apple and Linux partition types.
2009-12-14 20:04:06 +00:00
Rui Paulo
f9d551f7df Add a missing check for Apple HFS partitions.
MFC after:	1 week
2009-11-12 19:30:49 +00:00
Robert Noland
a59a131093 We need to allocate space for the header in the create path also.
This fixes a null pointer dereference with "gpart create -s GPT" after
the previous commit.

Reported by:	Yuri Pankov
Pointyhat to:	me
MFC after:	1 week
2009-11-12 16:28:39 +00:00
Robert Noland
1c2dee3cc9 Fix handling of GPT headers when size is > 92 bytes.
It is valid for an on-disk GPT header to report a header size which is
greater than 92 bytes.  Previously, we would read in the sector and copy
only the 92 bytes that we know how to deal with before calculating the
checksum for comparison.  This meant that when we did the checksum, we
overshot the buffer and took in random memory, so the checksum would fail.

We now determine the size of the header and allocate enough space to
preserve the entire on-disk contents.  This allows us to be correctly
calculate the checksum and be able to modify and write the header back
to the disk, while preserving data that we might not understand.

Reported by:	Kris Weston
Approved by:	marcel@
MFC after:	2 weeks
2009-11-07 17:29:03 +00:00
Robert Noland
e80d42dda2 Set the active flag in the PMBR when we install bootcode on a GPT
partitioned disk.  Some BIOS require this to be set before they will
boot the device.

Approved by:	marcel
MFC after:	2 weeks
2009-10-14 19:24:01 +00:00
Marcel Moolenaar
8530137252 The start of the EFI GPT partition in the PMBR can always be represented
by CHS addressing. Don't define these fields as 0xff, but rather define
them correctly. This prevents boot problems on PCs where GPT is being
used.

PR:		115406
Submitted by:	Kent Hauser <kent@khauser.net>
Approved by:	re (kib)
2009-08-17 16:16:46 +00:00
Marcel Moolenaar
2a1c00ff2f Sharpen the saw:
o  Don't create a GPT scheme underneath another scheme when
   the probe doesn't allow it.
2009-03-30 00:33:43 +00:00
Warner Losh
51f53a08e0 Fix g_part_dumpconf and g_part_name prototpyes.
Submitted by:	marcel@
2009-02-10 02:43:07 +00:00
Marcel Moolenaar
6647711279 Allow boot code to be smaller than what the scheme expects.
This effectively changes the boot code size to be an upper
bound and makes the interface more flexible.
2008-12-01 00:07:17 +00:00
Marcel Moolenaar
dd0db05da2 Fix a panic caused by a corrupted table when the header is
still valid. We were checking the state of the header and
not the table.

PR:		119868
Based on a patch from:	Jaakko Heinonen <jh@saunalahti.fi>
MFC after: 1 week
2008-11-06 16:51:33 +00:00
Rui Paulo
87662ab391 Keep entries sorted. 2008-09-05 18:09:49 +00:00
Rui Paulo
d7255ff42e Detect Apple HFS GPT slices. 2008-09-05 12:49:14 +00:00
Marcel Moolenaar
d3532631de Finish the support for partition labels and add it to the XML. 2008-06-12 19:34:07 +00:00
Marcel Moolenaar
0c132595dd Add the raw partiton type to the XML. 2008-06-12 05:28:47 +00:00
Marcel Moolenaar
5db670520f Implement the G_PART_DUMPCONF method for all 6 schemes. Also call
the method for the (indent == NULL) case (i.e. the kern.geom.conftxt
sysctl). The purpose is to extend the conftxt output with scheme-
specific fields which can be used by libdisk. In particular, have
the schemes dump the xs and xt fields, which contain the backward
compatible values for class type and partition type. This allows
libdisk to work with the legacy slicers as well as with gpart and
helps/promotes migration.
2008-04-23 20:13:05 +00:00
Marcel Moolenaar
4d32fcb42b Add the bootcode verb for installing boot code. Boot code
is supported for the MBR, GPT and PC98 schemes, where GPT
installs boot code into the PMBR.
2008-04-13 19:54:54 +00:00
Marcel Moolenaar
4ffca444a5 Redefine G_PART_SCHEME_DECLARE() from populating a private linker set
to declaring a proper module. The module event handler is part of the
gpart core and will add the scheme to an internal list on module load
and will remove the scheme from the internal list on module unload.
This makes it possible to dynamically load and unload partitioning
schemes.
2008-03-23 01:31:59 +00:00
John Baldwin
f352a0d45f First cut at support for booting a GPT labeled disk via the BIOS bootstrap
on i386 and amd64 machines.  The overall process is that /boot/pmbr lives
in the PMBR (similar to /boot/mbr for MBR disks) and is responsible for
locating and loading /boot/gptboot.  /boot/gptboot is similar to /boot/boot
except that it groks GPT rather than MBR + bsdlabel.  Unlike /boot/boot,
/boot/gptboot lives in its own dedicated GPT partition with a new
"FreeBSD boot" type.  This partition does not have a fixed size in that
/boot/pmbr will load the entire partition into the lower 640k.  However,
it is limited in that it can only be 545k.  That's still a lot better than
the current 7.5k limit for boot2 on MBR.  gptboot mostly acts just like
boot2 in that it reads /boot.config and loads up /boot/loader.  Some more
details:
- Include uuid_equal() and uuid_is_nil() in libstand.
- Add a new 'boot' command to gpt(8) which makes a GPT disk bootable using
  /boot/pmbr and /boot/gptboot.  Note that the disk must have some free
  space for the boot partition.
  - This required exposing the backend of the 'add' function as a
    gpt_add_part() function to the rest of gpt(8).  'boot' uses this to
    create a boot partition if needed.
- Don't cripple cgbase() in the UFS boot code for /boot/gptboot so that
  it can handle a filesystem > 1.5 TB.
- /boot/gptboot has a simple loader (gptldr) that doesn't do any I/O
  unlike boot1 since /boot/pmbr loads all of gptboot up front.  The
  C portion of gptboot (gptboot.c) has been repocopied from boot2.c.
  The primary changes are to parse the GPT to find a root filesystem
  and to use 64-bit disk addresses.  Currently gptboot assumes that the
  first UFS partition on the disk is the / filesystem, but this algorithm
  will likely be improved in the future.
- Teach the biosdisk driver in /boot/loader to understand GPT tables.
  GPT partitions are identified as 'disk0pX:' (e.g. disk0p2:) which is
  similar to the /dev names the kernel uses (e.g. /dev/ad0p2).
- Add a new "freebsd-boot" alias to g_part() for the new boot UUID.

MFC after:	1 month
Discussed with:	marcel (some things might still change, but am committing
			what I have so far)
2007-10-24 21:33:00 +00:00
Marcel Moolenaar
a1fedf914f Add the freebsd-zfs alias. Both APM and GPT have ZFS partition
types.
2007-10-21 20:02:57 +00:00
Marcel Moolenaar
cf23147053 Prefix unknown (i.e. un-aliased) partition types with '!'. This is
how they had to be given with ctlreq.
2007-06-06 05:06:14 +00:00
Marcel Moolenaar
d287f59062 MFp4:
119373:	o  Remove the query verb, along with the request and response
	   parameters.
	o  Add the version and output parameters.
119390: [APM,GPT] Properly clear deleted entries.
119394:	o  Make the alias the standard and use the '!' to prefix
	   literal partition types.
	o  Treat schemes and partition types as case insensitive.
119462: [GPT] Fix a page fault caused when modifying a partition entry
	without a new partition type.
2007-05-08 20:18:17 +00:00
Marcel Moolenaar
1d3aed33e8 Evolve the ctlreq interface added to geom_gpt into a generic
partitioning class that supports multiple schemes. Current
schemes supported are APM (Apple Partition Map) and GPT.
Change all GEOM_APPLE anf GEOM_GPT options into GEOM_PART_APM
and GEOM_PART_GPT (resp).

The ctlreq interface supports verbs to create and destroy
partitioning schemes on a disk; to add, delete and modify
partitions; and to commit or undo changes made.
2007-02-07 18:55:31 +00:00