Commit Graph

22 Commits

Author SHA1 Message Date
Benno Rice
10e155c08a Fix a conditional that got mucked up.
Sponsored by:	iXsystems, Inc.
2018-04-12 17:16:13 +00:00
Benno Rice
459a61fd2d Add the ability to specify absolute and relative offsets to size partitions.
To create hybrid boot media we want to specify a partition at a known location.
This extends the syntax of size partitions to include an optional offset that
can be absolute or relative. It also introduces validation to make sure that
this hasn't resulted in overlapping partitions. I haven't added this to the
file and process partition specifications yet but the mechanics are designed
such that if someone comes up with a good way of specifying the offset it
will be fairly easy to add in.

Reviewed by:	imp
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D14916
2018-04-12 15:47:47 +00:00
Emmanuel Vadot
2dcfca637d mkimg: Add -C argument to specify maximum capacity
Add a -C option to specify a maximum capacity for the final image file.
It is useful to control the size of the generated image for sdcard or
when we will add dynamic size partition.

Add --capacity which is a shorthand to define min and max capacity at
the same time.

Reviewed by:	bapt, marcel, wblock (manpages)
Sponsored by:	Gandi.net
Differential Revision:	https://reviews.freebsd.org/D10509
2017-05-10 09:36:34 +00:00
Warner Losh
c30dcf40ba Add a new flag to mkimg (-a num) to specify the active partition for
those partitioning schemes that have this concept. Implement it as an
override for mbr's setting 0x80 in the flags for the first partition
when we have boot code.

Differential Revision: https://reviews.freebsd.org/D4403
2016-10-18 05:43:12 +00:00
Marcel Moolenaar
4299711473 o Provide a private definition for UUIDs (mkimg_uuid_t) because
UUIDs are not portable.
 o  Move mkimg_uuid() to a new file and merge both gpt_uuid_enc()
    and vhd_uuid_enc() into a single mkimg_uuid_enc() that lives
    in the same file.
 o  Move the OS-specific implementation of generating a UUID to
    osdep_uuidgen() and provide the implementations for FreeBSD,
    macOS and Linux.
 o  Expect the partitioning scheme headers to be found by having
    a search to the directory in which the headers live. This
    avoids conflicts on non-FreeBSD machines.
2016-10-18 01:55:07 +00:00
Marcel Moolenaar
4ac1e8d30f Replace OFF_MAX with INT64_MAX. The former is defined on Linux. 2016-10-03 04:00:30 +00:00
Marcel Moolenaar
6b1235713e Prefer <stdint.h> over <sys/types.h>. While here remove redundant
inclusion of <sys/queue.h>.

Move the inclusion of the disk partitioning headers out of order
and inbetween standard headers and local header. They will change
in a subsequent commit.
2016-10-03 02:37:28 +00:00
Marcel Moolenaar
1080fb197b Replace STAILQ with TAILQ. TAILQs are portable enough that they can
be used on both macOS and Linux. STAILQs are not. In particular,
STAILQ_LAST does not next on Linux. Since neither STAILQ_FOREACH_SAFE
nor TAILQ_FOREACH_SAFE exist on Linux, replace its use with a regular
TAILQ_FOREACH. The _SAFE variant was only used for having the next
pointer in a local variable.
2016-10-03 01:46:47 +00:00
Marcel Moolenaar
5a1302ab2e Replace the use of linker sets with constructors for both the
formats and schemes.  Formats and schemes are registered at
runtime now, rather than collected at link time.
2016-09-25 22:57:59 +00:00
Marcel Moolenaar
ac3425511d Update local variable 'block' after calling capacity_resize(),
otherwise format_resize(), which is called right after, isn't
getting the current/actual image size. Rather than rounding up,
format_resize() could end up truncating the size and we don't
allow that by design.

MFC after:	1 week
2016-09-24 17:29:27 +00:00
Marcel Moolenaar
e6679c1a71 Add the -c option for specifying the capacity of the disk image. When
a capcity is given, no partitions are required. When no partitions are
given, no scheme needs to be specified either. This makes it possible
to create an entirely empty disk image. To add an empty partitioning
table, specify the scheme.

Bump the version to 20150222.
2015-02-22 04:50:47 +00:00
Marcel Moolenaar
aba885c960 Don't require a scheme if no partitions are given. Change the code
to handle that case. Note that we still require partitions, so the
change is effectively a no-op.
2015-02-22 01:20:49 +00:00
Marcel Moolenaar
29eac8d790 Remove extraneous parenthesis in assignment. 2015-02-22 00:58:10 +00:00
Marcel Moolenaar
2c83b36f45 Add mkimg_chs() for those schemes that need the LBA broken down into
cylinder, head and track numbers. Return ~0U for these values when
mkimg wasn't given both -T and -H (i.e. no geometry) or the cylinder
would be larger than the provided maximum.

Use mkimgs_chs() for the EBR, MBR and PC98 schemes to fill in the
appropriate fields. Make sure to use a "rounded" size so that the
partition is always a multiple of the track size. We reserved the
room for it in the metadata callback so that's a valid thing to
do.

Bump the mkimg version number.
While doing that again: have mkimg.o depend on the Makefile so that
a version change triggers a rebuild as needed.
2014-10-03 20:48:11 +00:00
Marcel Moolenaar
fb2f6c6c66 Update the usage message and the man page to account for the new long
options. Bump the version number to 20140927.
While here, use explicit fputc() calls to skip a line in the output.
This to avoid having to hunt for extra '\n' characters in the printf
format strings.

MFC after:	1 week
Relnotes:	yes
2014-09-27 17:58:03 +00:00
Marcel Moolenaar
a53d83a210 Add 3 long options for getting information about mkimg itself:
--version	print the version of mkimg and also whether it's
		64- or 32-bit.
--formats	list the supported output formats separated by space.
--schemes	list the supported partitioning schemes separated by
		space.

Inspired by a patch from: gjb@

MFC after:	1 week
Relnotes:	yes
2014-09-27 04:53:51 +00:00
Marcel Moolenaar
752bf46955 Add support for adding empty partition entries. I.e. skip partition
numbers or names. This gives more control over the actual layout and
helps to construct BSD disklabels with /usr or /var at dedicated
partitions.

Obtained from:	Juniper Networks, Inc.
MFC after:	3 days
Relnotes:	yes
2014-09-12 20:05:08 +00:00
Marcel Moolenaar
264f86e1ad Document the -y option as a unit test option.
Add missing -v (and -y) to the usage message.

Requested by: eadler@
2014-07-04 18:47:25 +00:00
Marcel Moolenaar
f3582a728d Add VHD support to mkimg(1). VHD is used by Xen and Microsoft's Hyper-V
among others.

Add an undocumented option for unit testing (-y). When given, the image
will have UUIDs and timestamps synthesized in a way that gives identical
results across runs. As such, UUIDs stop being unique, globally or
otherwise.

VHD support requested by: gjb@
2014-07-03 20:31:43 +00:00
Marcel Moolenaar
f0e9dced5c MFuser/marcel/mkimg:
Add support for different output formats:
1.  The output file that was previously written is now called the raw format.
2.  Add the vmdk output format to create VMDK images.

When the format is not given, the raw output format is assumed.
2014-05-15 19:19:57 +00:00
Marcel Moolenaar
789a10b106 Add mkimg_write() which combines lseek(2) and write(2) and uses
sector granularity for both offset and length. Have all schemes
use mkimg_write() instead of mkimg_seek() followed by write(2).

Now that schemes don't use lseek(2) nor write(2) directly, it's
easier to support output formats other than raw disks.
2014-05-06 21:54:05 +00:00
Marcel Moolenaar
a5eb4ea3ee Add mkimg, a utility for making disk images from raw partition contents.
The partitioning scheme can be one of the schemes supported by gpart.

Reviewed by:	sjg
Obtained from:	Juniper Networks, Inc.
2014-03-29 19:03:10 +00:00