Commit graph

2090 commits

Author SHA1 Message Date
Florian La Roche
3ec59f14f4 grub-mkconfig: If $hints is not set reduce the output into grub.cfg to just 1 line
Signed-off-by: Florian La Roche <Florian.LaRoche@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-18 22:31:30 +02:00
Martin Whitaker
8451454889 grub-install: Fix inverted test for NLS enabled when copying locales
Commit 3d8439da8 (grub-install: Locale depends on nls) attempted to avoid
copying locale files to the target directory when NLS was disabled.
However the test is inverted, and it does the opposite.

Signed-off-by: Martin Whitaker <fsf@martin-whitaker.me.uk>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
2020-09-18 21:17:07 +02:00
Florian La Roche
3e9d8c4ce4 templates: Remove unnecessary trailing semicolon
Signed-off-by: Florian La Roche <Florian.LaRoche@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-11 15:51:25 +02:00
Peter Jones
f725fa7cb2 calloc: Use calloc() at most places
This modifies most of the places we do some form of:

  X = malloc(Y * Z);

to use calloc(Y, Z) instead.

Among other issues, this fixes:
  - allocation of integer overflow in grub_png_decode_image_header()
    reported by Chris Coulson,
  - allocation of integer overflow in luks_recover_key()
    reported by Chris Coulson,
  - allocation of integer overflow in grub_lvm_detect()
    reported by Chris Coulson.

Fixes: CVE-2020-14308

Signed-off-by: Peter Jones <pjones@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-07-29 16:55:47 +02:00
Ian Jackson
a81401ff49 templates/20_linux_xen: Support Xen Security Modules (XSM/FLASK)
XSM is enabled by adding "flask=enforcing" as a Xen command line
argument, and providing the policy file as a grub module.

We make entries for both with and without XSM. If XSM is not compiled
into Xen, then there are no policy files, so no change to the boot
options.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-05-25 15:00:56 +02:00
Ian Jackson
7a9b30143b templates/20_linux_xen: Ignore xenpolicy and config files too
file_is_not_sym() currently only checks for xen-syms. Extend it to
disregard xenpolicy (XSM policy files) and files ending .config (which
are built by the Xen upstream build system in some configurations and
can therefore end up in /boot).

Rename the function accordingly, to file_is_not_xen_garbage().

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-05-25 15:00:37 +02:00
Steve Langasek
46d76f8fef templates: Output a menu entry for firmware setup on UEFI FastBoot systems
The fwsetup command allows to reboot into the EFI firmware setup menu, add
a template to include a menu entry on EFI systems that makes use of that
command to reboot into the EFI firmware settings.

This is useful for users since the hotkey to enter into the EFI setup menu
may not be the same on all systems so users can use the menu entry without
needing to figure out what key needs to be pressed.

Also, if fastboot is enabled in the BIOS then often it is not possible to
enter the firmware setup menu. So the entry is again useful for this case.

Signed-off-by: Steve Langasek <steve.langasek@ubuntu.com>
Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-04-21 22:14:12 +02:00
Daniel Axtens
06fd69a3fd powerpc/mkimage: Fix CHRP note descsz
Currently, an image generated with 'grub-mkimage -n' causes an error when
read with 'readelf -a':

Displaying notes found at file offset 0x000106f0 with length 0x0000002c:
  Owner                Data size        Description
readelf: Warning: note with invalid namesz and/or descsz found at offset 0x0
readelf: Warning:  type: 0x1275, namesize: 0x00000008, descsize: 0x0000002c, alignment: 4

This is because the descsz of the CHRP note is set to
 sizeof (struct grub_ieee1275_note)
which is the size of the entire note, including name and elf header. The
desczs should contain only the contents, not the name and header sizes.

Set the descsz instead to 'sizeof (struct grub_ieee1275_note_desc)'

Resultant readelf output:

Displaying notes found at file offset 0x00010710 with length 0x0000002c:
  Owner                Data size        Description
  PowerPC              0x00000018       Unknown note type: (0x00001275)
   description data: ff ff ff ff 00 c0 00 00 ff ff ff ff ff ff ff ff ff ff ff ff 00 00 40 00

So far as I can tell this issue has existed for as long as the note
generation code has existed, but I guess nothing really checks descsz.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-04-21 22:00:59 +02:00
Peter Jones
d5a32255de misc: Make grub_strtol() "end" pointers have safer const qualifiers
Currently the string functions grub_strtol(), grub_strtoul(), and
grub_strtoull() don't declare the "end" pointer in such a way as to
require the pointer itself or the character array to be immutable to the
implementation, nor does the C standard do so in its similar functions,
though it does require us not to change any of it.

The typical declarations of these functions follow this pattern:

long
strtol(const char * restrict nptr, char ** restrict endptr, int base);

Much of the reason for this is historic, and a discussion of that
follows below, after the explanation of this change.  (GRUB currently
does not include the "restrict" qualifiers, and we name the arguments a
bit differently.)

The implementation is semantically required to treat the character array
as immutable, but such accidental modifications aren't stopped by the
compiler, and the semantics for both the callers and the implementation
of these functions are sometimes also helped by adding that requirement.

This patch changes these declarations to follow this pattern instead:

long
strtol(const char * restrict nptr,
       const char ** const restrict endptr,
       int base);

This means that if any modification to these functions accidentally
introduces either an errant modification to the underlying character
array, or an accidental assignment to endptr rather than *endptr, the
compiler should generate an error.  (The two uses of "restrict" in this
case basically mean strtol() isn't allowed to modify the character array
by going through *endptr, and endptr isn't allowed to point inside the
array.)

It also means the typical use case changes to:

  char *s = ...;
  const char *end;
  long l;

  l = strtol(s, &end, 10);

Or even:

  const char *p = str;
  while (p && *p) {
	  long l = strtol(p, &p, 10);
	  ...
  }

This fixes 26 places where we discard our attempts at treating the data
safely by doing:

  const char *p = str;
  long l;

  l = strtol(p, (char **)&ptr, 10);

It also adds 5 places where we do:

  char *p = str;
  while (p && *p) {
	  long l = strtol(p, (const char ** const)&p, 10);
	  ...
	  /* more calls that need p not to be pointer-to-const */
  }

While moderately distasteful, this is a better problem to have.

With one minor exception, I have tested that all of this compiles
without relevant warnings or errors, and that /much/ of it behaves
correctly, with gcc 9 using 'gcc -W -Wall -Wextra'.  The one exception
is the changes in grub-core/osdep/aros/hostdisk.c , which I have no idea
how to build.

Because the C standard defined type-qualifiers in a way that can be
confusing, in the past there's been a slow but fairly regular stream of
churn within our patches, which add and remove the const qualifier in many
of the users of these functions.  This change should help avoid that in
the future, and in order to help ensure this, I've added an explanation
in misc.h so that when someone does get a compiler warning about a type
error, they have the fix at hand.

The reason we don't have "const" in these calls in the standard is
purely anachronistic: C78 (de facto) did not have type qualifiers in the
syntax, and the "const" type qualifier was added for C89 (I think; it
may have been later).  strtol() appears to date from 4.3BSD in 1986,
which means it could not be added to those functions in the standard
without breaking compatibility, which is usually avoided.

The syntax chosen for type qualifiers is what has led to the churn
regarding usage of const, and is especially confusing on string
functions due to the lack of a string type.  Quoting from C99, the
syntax is:

 declarator:
  pointer[opt] direct-declarator
 direct-declarator:
  identifier
  ( declarator )
  direct-declarator [ type-qualifier-list[opt] assignment-expression[opt] ]
  ...
  direct-declarator [ type-qualifier-list[opt] * ]
  ...
 pointer:
  * type-qualifier-list[opt]
  * type-qualifier-list[opt] pointer
 type-qualifier-list:
  type-qualifier
  type-qualifier-list type-qualifier
 ...
 type-qualifier:
  const
  restrict
  volatile

So the examples go like:

const char foo;			// immutable object
const char *foo;		// mutable pointer to object
char * const foo;		// immutable pointer to mutable object
const char * const foo;		// immutable pointer to immutable object
const char const * const foo; 	// XXX extra const keyword in the middle
const char * const * const foo; // immutable pointer to immutable
				//   pointer to immutable object
const char ** const foo;	// immutable pointer to mutable pointer
				//   to immutable object

Making const left-associative for * and right-associative for everything
else may not have been the best choice ever, but here we are, and the
inevitable result is people using trying to use const (as they should!),
putting it at the wrong place, fighting with the compiler for a bit, and
then either removing it or typecasting something in a bad way.  I won't
go into describing restrict, but its syntax has exactly the same issue
as with const.

Anyway, the last example above actually represents the *behavior* that's
required of strtol()-like functions, so that's our choice for the "end"
pointer.

Signed-off-by: Peter Jones <pjones@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-02-28 12:41:29 +01:00
Peter Jones
0ad07e928a grub-editenv: Make grub-editenv chase symlinks including those across devices
The grub-editenv create command will wrongly overwrite /boot/grub2/grubenv
with a regular file if grubenv is a symbolic link. But instead, it should
create a new file in the path the symlink points to.

This lets /boot/grub2/grubenv be a symlink to /boot/efi/EFI/fedora/grubenv
even when they're different mount points, which allows grub2-editenv to be
the same across platforms (i.e. UEFI vs BIOS).

For example, in Fedora the GRUB EFI builds have prefix set to /EFI/fedora
(on the EFI System Partition), but for BIOS machine it'll be /boot/grub2
(which may or may not be its own mountpoint).

With this patch, on EFI machines we can make /boot/grub2/grubenv a symlink
to /boot/efi/EFI/fedora/grubenv, and the same copy of grub-set-default will
work on both kinds of systems.

Windows doesn't implement a readlink primitive, so the current behaviour is
maintained for this operating system.

Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Jonathan Lebon <jlebon@redhat.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-02-18 15:16:02 +01:00
Michael Chang
5e5a15872d grub-editenv: Warn a user against editing environment block
The environment block is a preallocated 1024-byte file which serves as
persistent storage for environment variables. It has its own format
which is sensitive to corruption if an editor does not know how to
process it. Besides that the editor may inadvertently change grubenv
file size and/or make it sparse which can lead to unexpected results.

This patch adds a message to the grubenv file to warn a user against
editing it by tools other than grub-editenv.

Signed-off-by: Michael Chang <mchang@suse.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-11-18 14:19:25 +01:00
Eli Schwartz
28a7e597de grub-mkconfig: Use portable "command -v" to detect installed programs
The "which" utility is not guaranteed to be installed either, and if it
is, its behavior is not portable either.

Conversely, the "command -v" shell builtin is required to exist in all
POSIX 2008 compliant shells, and is thus guaranteed to work everywhere.

Examples of open-source shells likely to be installed as /bin/sh on
Linux, which implement the 11-year-old standard: ash, bash, busybox,
dash, ksh, mksh and zsh.

A side benefit of using the POSIX portable option is that it requires
neither an external disk executable, nor (because unlike "which", the
exit code is reliable) a subshell fork. This therefore represents a mild
speedup.

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-10-28 15:38:48 +01:00
Peter Jones
b78d570a36 templates: Add GRUB_DISABLE_UUID
The grub-mkconfig and 10_linux scripts by default attempt to use a UUID to
set the root kernel command line parameter and the $root GRUB environment
variable.

The former can be disabled by setting the GRUB_DISABLE_LINUX_UUID variable
to "true", but there is currently no way to disable the latter.

The generated grub config uses the search command with the --fs-uuid option
to find the device that has to be set as $root, i.e:

 search --no-floppy --fs-uuid --set=root ...

This is usually more reliable but in some cases it may not be appropriate,
so this patch introduces a new GRUB_DISABLE_UUID variable that can be used
to disable searching for the $root device by filesystem UUID.

When disabled, the $root device will be set to the value specified in the
device.map as found by the grub-probe --target=compatibility_hint option.

When setting GRUB_DISABLE_UUID=true, the GRUB_DISABLE_LINUX_UUID and
GRUB_DISABLE_LINUX_PARTUUID variables will also be set to "true" unless
these have been explicitly set to "false".

That way, the GRUB_DISABLE_UUID variable can be used to force using the
device names for both GRUB and Linux.

Signed-off-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Nicholas Vinson <nvinson234@gmail.com>
2019-10-28 15:35:40 +01:00
Prarit Bhargava
ee4bd79ef2 templates: Fix bad test on GRUB_DISABLE_SUBMENU
The GRUB_DISABLE_SUBMENU option is different than the others in the sense
that it has to be set to "y" instead of "true" to be enabled.

That causes a lot of confusion to users, some may wrongly set it to "true"
expecting that will work the same than with most options, and some may set
it to "yes" since for other options the value to set is a word and not a
single character.

This patch changes all the grub.d scripts using the GRUB_DISABLE_SUBMENU
option, so they check if it was set to "true" instead of "y", making it
consistent with all the other options.

But to keep backward compatibility for users that set the option to "y" in
/etc/default/grub file, keep testing for this value. And also do it for
"yes", since it is a common mistake made by users caused by this option
being inconsistent with the others.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-10-21 14:05:02 +02:00
Colin Watson
ff3e91be9c grub-mkconfig: Fix typo in --help output
The short form of "--version" that grub-mkconfig accepts is "-V", not "-v".

Fixes Debian bug #935504.

Signed-off-by: Colin Watson <cjwatson@ubuntu.com>
Reviewed-by: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-09-23 13:20:02 +02:00
Andreas Schwab
11268841e2 grub-install: Define default platform for RISC-V
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Alexander Graf <agraf@csgraf.de>
2019-09-23 13:19:19 +02:00
Marcel Kolaja
ab2e53c8a1 grub-mkconfig: Honor a symlink when generating configuration by grub-mkconfig
Honor a symlink when generating configuration by grub-mkconfig, so that
the -o option follows it rather than overwriting it with a regular file.

Signed-off-by: Marcel Kolaja <mkolaja@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-09-23 13:17:15 +02:00
James Clarke
4e75b2ae31 [PATCH] sparc64: Fix BIOS Boot Partition support
Currently, gpt_offset is uninitialised when using a BIOS Boot Partition
but is used unconditionally inside save_blocklists. Instead, ensure it
is always initialised to 0 (note that there is already separate code to
do the equivalent adjustment after we call save_blocklists on this code
path).

This patch has been tested on a T5-2 LDOM.

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Eric Snowberg <eric.snowberg@oracle.com>

---
 util/setup.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
2019-07-18 14:33:16 +02:00
Andreas Schwab
2bf40e9e5b RISC-V: Fix computation of pc-relative relocation offset
The offset calculation was missing the relocation addend.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Tested-by: Chester Lin <clin@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-07-11 17:50:40 +02:00
Vincent Legoll
53e70d30cf grub-mkrescue: Fix error message about the wrong command having failed: mformat instead of mcopy
Signed-off-by: Vincent Legoll <vincent.legoll@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-05-20 13:01:11 +02:00
Ovidiu Panait
4ff34fefe4 grub-mkconfig: Use -c instead of --printf for stat
"--printf" only works with the stat variant provided by coreutils.

With busybox, stat will fail with the following error:
stat: unrecognized option '--printf=%T'

Usage: stat [OPTIONS] FILE...

Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-05-20 12:59:36 +02:00
Alexander Graf
ce946603cf arm: Align section alignment with manual relocation offset code
The arm relocation code has a manual special case for EFI binaries to
add the natural alignment to its own relocation awareness.

Since commit a51f953f4e ("mkimage: Align efi sections on 4k
boundary") we changed that alignment from 0x400 to 0x1000 bytes. Reflect
the change in that branch that we forgot as well.

This fixes running 32bit arm grub efi binaries for me again.

Fixes: a51f953f4e ("mkimage: Align efi sections on 4k boundary")
Reported-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reported-by: Steve McIntyre <steve@einval.com>
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Julien ROBIN <julien.robin28@free.fr>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-05-06 12:10:54 +02:00
Alexander Graf
1ce93f944d arm: Move trampolines into code section
When creating T32->A32 transition jumps, the relocation code in grub
will generate trampolines. These trampolines live in the .data section
of our PE binary which means they are not marked as executable.

This misbehavior was unmasked by commit a51f953f4e ("mkimage: Align
efi sections on 4k boundary") which made the X/NX boundary more obvious
because everything became page aligned.

To put things into proper order, let's move the arm trampolines into the
.text section instead. That way everyone knows they are executable.

Fixes: a51f953f4e ("mkimage: Align efi sections on 4k boundary")
Reported-by: Julien ROBIN <julien.robin28@free.fr>
Reported-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Alexander Graf <agraf@csgraf.de>
Tested-by: Julien ROBIN <julien.robin28@free.fr>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Tested-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-05-06 12:10:27 +02:00
Vladimir Serbinenko
ad4bfeec5c Change fs functions to add fs_ prefix
This avoid conflict with gnulib

Signed-off-by: Vladimir Serbinenko <phcoder@google.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-04-09 10:03:29 +10:00
Vladimir Serbinenko
384091967d Rename grub_disk members
Otherwise it horribly clashes with gnulib when it's
replacing open/write/read/close

Signed-off-by: Vladimir Serbinenko <phcoder@google.com>
2019-03-25 15:14:52 +01:00
Vladimir Serbinenko
3562536fd5 grub-mkimagexx: Fix RISCV error message
Outputting a raw pointer doesn't match the format and is
also useless. Output offset instead.

Signed-off-by: Vladimir Serbinenko <phcoder@google.com>
2019-03-25 15:11:09 +01:00
Vladimir Serbinenko
4ff051880f Support R_PPC_PLTREL24
It's emitted by clang 7. It's the same as R_PPC_REL24.

Signed-off-by: Vladimir Serbinenko <phcoder@google.com>
2019-03-25 15:08:49 +01:00
Eric Snowberg
9a0703b559 sparc64: Add bios boot partition support
Add BIOS Boot Partition support for sparc64 platforms.  This will work a
little different than x86.  With GPT, both the OBP "load" and "boot" commands
are partition aware and neither command can see the partition table.  Therefore
the entire boot-loader is stored within the BIOS Boot Partition and nothing
is stored within the bootstrap code area of MBR.

To use it, the end user will issue the boot command with the path pointing to
the BIOS Boot Partition.

For example with the disk below:

Model: Unknown (unknown)
Disk /dev/nvme1n1: 1600GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name  Flags
1      1049kB  1075MB  1074MB   ext3
2      1075MB  1076MB  1049kB                     bios_grub
3      1076MB  1600GB  1599GB                     lvm

To boot grub2 from OBP, you would use:

boot /pci@302/pci@1/pci@0/pci@13/nvme@0/disk@1:b

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-03-12 20:04:07 +01:00
Colin Watson
35b909062e gnulib: Upgrade Gnulib and switch to bootstrap tool
Upgrade Gnulib files to 20190105.

It's much easier to maintain GRUB's use of portability support files
from Gnulib when the process is automatic and driven by a single
configuration file, rather than by maintainers occasionally running
gnulib-tool and committing the result.  Removing these
automatically-copied files from revision control also removes the
temptation to hack the output in ways that are difficult for future
maintainers to follow.  Gnulib includes a "bootstrap" program which is
designed for this.

The canonical way to bootstrap GRUB from revision control is now
"./bootstrap", but "./autogen.sh" is still useful if you just want to
generate the GRUB-specific parts of the build system.

GRUB now requires Autoconf >= 2.63 and Automake >= 1.11, in line with
Gnulib.

Gnulib source code is now placed in grub-core/lib/gnulib/ (which should
not be edited directly), and GRUB's patches are in
grub-core/lib/gnulib-patches/.  I've added a few notes to the developer
manual on how to maintain this.

Signed-off-by: Colin Watson <cjwatson@ubuntu.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-03-05 10:48:12 +01:00
Colin Watson
62daa27056 util: Detect more I/O errors
Many of GRUB's utilities don't check anywhere near all the possible
write errors.  For example, if grub-install runs out of space when
copying a file, it won't notice.  There were missing checks for the
return values of write, fflush, fsync, and close (or the equivalents on
other OSes), all of which must be checked.

I tried to be consistent with the existing logging practices of the
various hostdisk implementations, but they weren't entirely consistent
to start with so I used my judgement.  The result at least looks
reasonable on GNU/Linux when I provoke a write error:

  Installing for x86_64-efi platform.
  grub-install: error: cannot copy `/usr/lib/grub/x86_64-efi-signed/grubx64.efi.signed' to `/boot/efi/EFI/debian/grubx64.efi': No space left on device.

There are more missing checks in other utilities, but this should fix
the most critical ones.

Fixes Debian bug #922741.

Signed-off-by: Colin Watson <cjwatson@ubuntu.com>
Reviewed-by: Steve McIntyre <93sam@debian.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-03-05 10:23:47 +01:00
Steve McIntyre
686db96646 grub-install: Check for arm-efi as a default target
Much like on x86, we can work out if the system is running on top of EFI
firmware. If so, return "arm-efi". If not, fall back to "arm-uboot" as
previously.

Split out the code to (maybe) load the efivar module and check for
/sys/firmware/efi into a common helper routine is_efi_system().

Signed-off-by: Steve McIntyre <93sam@debian.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-02-26 15:25:13 +01:00
Daniel Kiper
718b3fb1dc Revert "grub-install: Check for arm-efi as a default target"
This reverts commit 082fd84d52.

Incorrect version of the patch was pushed into the git repo.

Reported-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-02-26 15:07:28 +01:00
Steve McIntyre
082fd84d52 grub-install: Check for arm-efi as a default target
Much like on x86, we can work out if the system is running on top
of EFI firmware. If so, return "arm-efi". If not, fall back to
"arm-uboot" as previously.

Heavily inspired by the existing code for x86.

Signed-off-by: Steve McIntyre <93sam@debian.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-02-25 14:02:06 +01:00
Alexander Graf
f1957dc8a3 RISC-V: Add to build system
This patch adds support for RISC-V to the grub build system. With this
patch, I can successfully build grub on RISC-V as a UEFI application.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-02-25 14:02:05 +01:00
Alexander Graf
e0d32cca1d RISC-V: Add awareness for RISC-V reloations
This patch adds awareness of RISC-V relocations throughout the grub tools
as well as dynamic linkage and elf->PE relocation conversion support.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-02-25 11:34:09 +01:00
Alexander Graf
9223eff8f8 mkimage: Clarify file alignment in efi case
There are a few spots in the PE generation code for EFI binaries that uses
the section alignment rather than file alignment, even though the alignment
is really only file bound.

Replace those cases with the file alignment constant instead.

Reported-by: Daniel Kiper <dkiper@net-space.pl>
Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Julien ROBIN <julien.robin28@free.fr>
2019-02-06 11:34:50 +01:00
Alexander Graf
e347f40c1a mkimage: Use EFI32_HEADER_SIZE define in arm-efi case
The efi-arm case was defining its own header size calculation, even though it's
100% identical to the common EFI32_HEADER_SIZE definition.

So let's clean it up to use the common define.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Julien ROBIN <julien.robin28@free.fr>
2019-02-06 11:34:50 +01:00
Peter Große
e86f6aafb8 grub-mkconfig/20_linux_xen: Support multiple early initrd images
Add support for multiple, shared, early initrd images. These early
images will be loaded in the order declared, and all will be loaded
before the initrd image.

While many classes of data can be provided by early images, the
immediate use case would be for distributions to provide CPU
microcode to mitigate the Meltdown and Spectre vulnerabilities.

Xen has also support to load microcode updates provided as additional
modules by the bootloader.

There are two environment variables provided for declaring the early
images.

* GRUB_EARLY_INITRD_LINUX_STOCK is for the distribution declare
  images that are provided by the distribution or installed packages.
  If undeclared, this will default to a set of common microcode image
  names.

* GRUB_EARLY_INITRD_LINUX_CUSTOM is for user created images. User
  images will be loaded after the stock images.

These separate configurations allow the distribution and user to
declare different image sets without clobbering each other.

This also makes a minor update to ensure that UUID partition labels
stay disabled when no initrd image is found, even if early images are
present.

This is basically a copy of a698240d "grub-mkconfig/10_linux: Support
multiple early initrd images" by Matthew S. Turnbull.

Signed-off-by: Peter Große <pegro@friiks.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2019-01-14 11:56:19 +01:00
Juergen Gross
90b7b14fa5 xen_pvh: Support grub-install for xen_pvh
Add xen_pvh support to grub-install.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Hans van Kranenburg <hans@knorrie.org>
2018-12-12 12:03:28 +01:00
Juergen Gross
78899c42d7 xen_pvh: Support building a standalone image
Support mkimage for xen_pvh.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Hans van Kranenburg <hans@knorrie.org>
2018-12-12 12:03:27 +01:00
Juergen Gross
9bce25213a xen: Use elfnote defines instead of plain numbers
In order to avoid using plain integers for the ELF notes use the
available Xen include instead.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Hans van Kranenburg <hans@knorrie.org>
2018-12-12 12:03:27 +01:00
Hans van Kranenburg
a40b219e26 grub-module-verifier: Ignore all_video for xen_pvh
This solves the build failing with "Error: no symbol table and no
.moddeps section"

Also see:
- 6371e9c104
- https://savannah.gnu.org/bugs/?49012

Signed-off-by: Hans van Kranenburg <hans@knorrie.org>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
Tested-by: Hans van Kranenburg <hans@knorrie.org>
2018-12-12 12:03:27 +01:00
Matthew Daley
c0a9f53478 mkimage: Pad DTBs to target-specific pointer size
Device tree (DTB) lengths are being padded to a multiple of 4 bytes
rather than the target-specific pointer size. This causes objects
following OBJ_TYPE_DTB objects to be incorrectly parsed during GRUB
execution on arm64.

Fix by using ALIGN_ADDR(), not ALIGN_UP().

Signed-by-off: Matthew Daley <mattd@bugfuzz.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-11-16 14:39:53 +01:00
Colin Watson
e720eef6a6 Cope with / being on a ZFS root dataset
If / is on the root dataset in a ZFS pool, then ${bootfs} will be set to
"/" (whereas if it is on a non-root dataset, there will be no trailing
slash).  Passing "root=ZFS=${rpool}/" will fail to boot, but
"root=ZFS=${rpool}" works fine, so strip the trailing slash.

Fixes: https://savannah.gnu.org/bugs/?52746

Signed-off-by: Colin Watson <cjwatson@ubuntu.com>
Tested-by: Fejes József <jozsef.fejes@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-11-09 13:36:52 +01:00
Vladimir Serbinenko
ca0a4f689a verifiers: File type for fine-grained signature-verification controlling
Let's provide file type info to the I/O layer. This way verifiers
framework and its users will be able to differentiate files and verify
only required ones.

This is preparatory patch.

Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Reviewed-by: Ross Philipson <ross.philipson@oracle.com>
2018-11-09 13:25:31 +01:00
dann frazier
478e54b738 grub-reboot: Warn when "for the next boot only" promise cannot be kept
The "for the next boot only" property of grub-reboot is dependent upon
GRUB being able to clear the next_entry variable in the environment
block. However, GRUB cannot write to devices using the diskfilter
and lvm abstractions.

Ref: https://lists.gnu.org/archive/html/grub-devel/2009-12/msg00276.html
Ref: https://bugs.launchpad.net/bugs/788298

Signed-off-by: dann frazier <dann.frazier@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-09-13 11:01:10 +02:00
Peter Jones
8317c9eab9 grub-module-verifier: Report the filename or modname in errors
Make it so that when grub-module-verifier complains of an issue, it tells you
which module the issue was with.

Signed-off-by: Peter Jones <pjones@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-09-12 13:24:36 +02:00
Cao jin
4e9d9358e0 grub-setup: Debug message cleanup
Variable "root" is initialized after root device probing and is null in
current place, so, drop it.

Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-07-11 11:51:26 +02:00
Daniel Kiper
ba474d531a templates: Add missing "]"
Commit 51be337 (templates: Update grub script template files)
lacked one "]", so, add it.

Reported-by: Philip <philm@manjaro.org>
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-06-05 13:04:04 +02:00
Nicholas Vinson
51be3372ec templates: Update grub script template files
Update grub-mkconfig.in and 10_linux.in to support grub-probe's new
partuuid target.  Update grub.texi documentation.  The following table
shows how GRUB_DISABLE_LINUX_UUID, GRUB_DISABLE_LINUX_PARTUUID, and
initramfs detection interact:

Initramfs  GRUB_DISABLE_LINUX_PARTUUID  GRUB_DISABLE_LINUX_UUID  Linux Root
detected   Set                          Set                      ID Method

false      false                        false                    part UUID
false      false                        true                     part UUID
false      true                         false                    dev name
false      true                         true                     dev name
true       false                        false                    fs UUID
true       false                        true                     part UUID
true       true                         false                    fs UUID
true       true                         true                     dev name

Note: GRUB_DISABLE_LINUX_PARTUUID and GRUB_DISABLE_LINUX_UUID equate to
      'false' when unset or set to any value other than 'true'.
      GRUB_DISABLE_LINUX_PARTUUID defaults to 'true'.

Signed-off-by: Nicholas Vinson <nvinson234@gmail.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2018-04-23 13:31:02 +02:00