Commit graph

9941 commits

Author SHA1 Message Date
Michael Marineau
5342b880f4 gpt: read entries table at the same time as the header
I personally think this reads easier. Also has the side effect of
directly comparing the primary and backup tables instead of presuming
they are equal if the crc32 matches.
2016-09-21 16:34:36 -07:00
Michael Marineau
f24685b22e gpt: include backup-in-sync check in revalidation 2016-09-21 16:34:36 -07:00
Michael Marineau
d2f9096444 gpt: always revalidate when recomputing checksums
This ensures all code modifying GPT data include the same sanity check
that repair does. If revalidation fails the status flags are left in the
appropriate state.
2016-09-21 16:34:36 -07:00
Michael Marineau
427fdc58e1 gpt: selectively update fields during repair
Just a little cleanup/refactor to skip touching data we don't need to.
2016-09-21 16:34:36 -07:00
Michael Marineau
1f5d29420c gpt: be more careful about relocating backup header
The header was being relocated without checking the new location is
actually safe. If the BIOS thinks the disk is smaller than the OS then
repair may relocate the header into allocated space, failing the final
validation check. So only move it if the disk has grown.

Additionally, if the backup is valid then we can assume its current
location is good enough and leave it as-is.
2016-09-21 16:34:36 -07:00
Michael Marineau
de8d29ef89 gpt: check header and entries status bits together
Use the new status function which checks *_HEADER_VALID and
*_ENTRIES_VALID bits together. It doesn't make sense for the header and
entries bits to mismatch so don't allow for it.
2016-09-21 13:50:06 -07:00
Michael Marineau
d57c41e8f5 Merge pull request #37 from marineam/enum
gpt: do not use an enum for status bit values
2016-09-21 13:26:57 -07:00
Michael Marineau
962db6c639 gpt: do not use an enum for status bit values 2016-09-21 13:24:55 -07:00
Michael Marineau
34abfb37e7 Merge pull request #36 from marineam/repair
Fix gptrepair's status bit checking
2016-09-21 13:14:13 -07:00
Michael Marineau
f4e09602dc gpt: allow repair function to noop
Simplifies usage a little.
2016-09-21 13:12:31 -07:00
Michael Marineau
3dda6a863a gpt: use inline functions for checking status bits
This should prevent bugs like 6078f836 and 4268f3da.
2016-09-21 13:12:03 -07:00
Michael Marineau
4268f3da52 gptrepair: fix status checking
None of these status bit checks were correct. Fix and simplify.
2016-09-20 13:29:07 -07:00
Michael Marineau
40e2f6fd35 Merge pull request #35 from marineam/fix-table
gpt: fix partition table indexing and validation
2016-09-02 17:05:08 -07:00
Vito Caputo
92b5bd1ce3 gpt: add helper for picking a valid header
Eliminate some repetition in primary vs. backup header acquisition.
2016-09-02 17:04:13 -07:00
Michael Marineau
bf127238ee gpt: fix partition table indexing and validation
Portions of the code attempted to handle the fact that GPT entries on
disk may be larger than the currently defined struct while others
assumed the data could be indexed by the struct size directly. This
never came up because no utility uses a size larger than 128 bytes but
for the sake of safety we need to do this by the spec.
2016-09-02 17:04:13 -07:00
Michael Marineau
87dfbf34c4 Merge pull request #33 from marineam/repair-corruption
Fix gptprio to properly detect and repair corruption
2016-08-22 19:40:21 -07:00
Michael Marineau
f9fe0d781a Merge pull request #34 from marineam/extended-validation
Add stricter validation of GPT headers
2016-08-22 19:39:30 -07:00
Michael Marineau
b2ca30d335 fix checking alternate_lba 2016-08-22 18:30:56 -07:00
Michael Marineau
c68fcd3b1a gpt: refuse to write to sector 0 2016-08-22 17:51:48 -07:00
Michael Marineau
8278022a0b gpt: improve validation of GPT headers
Adds basic validation of all the disk locations in the headers, reducing
the chance of corrupting weird locations on disk.
2016-08-22 17:51:48 -07:00
Michael Marineau
6078f83638 gpt: properly detect and repair invalid tables
GPT_BOTH_VALID is 4 bits so simple a boolean check is not sufficient.
This broken condition allowed gptprio to trust bogus disk locations in
headers that were marked invalid causing arbitrary disk corruption.
2016-08-22 17:33:17 -07:00
Michael Marineau
4d91c78833 gptprio_test: check GPT is repaired when appropriate 2016-08-22 17:33:17 -07:00
Michael Marineau
6bc5c77bd5 gptrepair_test: fix typo in cleanup trap 2016-08-22 17:33:17 -07:00
Michael Marineau
1c205c2c4d Merge pull request #31 from marineam/verbose-debug
Add verbose debug logging to biosdisk and gpt
2016-08-22 17:22:34 -07:00
Michael Marineau
c2f5fde6ab gpt: add verbose debug logging 2016-08-22 13:02:29 -07:00
Michael Marineau
d38d2d0fb1 biosdisk: add verbose debug logging 2016-08-22 13:02:29 -07:00
Michael Marineau
3d1efb83ed Merge pull request #32 from marineam/tpm
tpm: fix warnings when compiling for platforms other than pc and efi
2016-08-22 12:53:07 -07:00
Michael Marineau
2de6ebf196 tpm: fix warnings when compiling for platforms other than pc and efi 2016-08-21 18:45:02 -07:00
Michael Marineau
a7b0b20c87 Merge pull request #30 from marineam/fwcfg
fwconfig: fix unused argument warning
2016-08-21 11:21:47 -07:00
Michael Marineau
9a8cd5a16a fwconfig: fix unused argument warning 2016-08-20 17:54:47 -07:00
Pete Batard
4e0f8f66e3 Add missing va_end() to xasprintf() in grub-emu. 2016-08-13 16:36:01 +03:00
Andrei Borzenkov
c831d2073b at_keyboard: fix numpad "0" and "." mapping
Reported for set 1 by fgndevelop <fgndevelop@posteo.org>. Apparently
set 2 was reversed too.
2016-07-27 08:33:12 +03:00
Andrei Borzenkov
52408aa946 dns: fix buffer overflow for data->addresses in recv_hook
We may get more than one response before exiting out of loop in
grub_net_dns_lookup, but buffer was allocated for the first response only,
so storing answers from subsequent replies wrote past allocated size.
We never really use more than the very first address during lookup so there
is little point in collecting all of them. Just quit early if we already have
some reply.

Code needs serious redesign to actually collect multiple answers
and select the best fit according to requested type (IPv4 or IPv6).

Reported and tested by Michael Chang <mchang@suse.com>
2016-07-26 20:38:58 +03:00
Andrei Borzenkov
58590cb2ef xfs: accept filesystem with meta_uuid
XFS V5 stores UUID in metadata and compares them with superblock UUID.
To allow changing of user-visible UUID it stores original value in new
superblock field (meta_uuid) and sets incompatible flag to indicate that
new field must be used to verify metadata. Our driver currently does not
check metadata UUID so simply accept such filesystem.

Reported-By: Marcos Mello <marcosfrm@outlook.com>
Reviewd by Jan Kara <jack@suse.cz>
2016-07-26 20:29:26 +03:00
Michael Marineau
2ff7bd91eb Merge pull request #29 from marineam/big-bad-disk
gpt: do not use disk sizes GRUB will reject as invalid later on
2016-07-25 16:05:48 -07:00
Nick Owens
d4602dd67f Merge pull request #28 from mischief/client-arch
net: add client arch and fix user class/terminator
2016-07-25 15:55:23 -07:00
Michael Marineau
a8ad608425 gpt: do not use disk sizes GRUB will reject as invalid later on
GRUB assumes that no disk is ever larger than 1EiB and rejects
reads/writes to such locations. Unfortunately this is not conveyed in
the usual way with the special GRUB_DISK_SIZE_UNKNOWN value.
2016-07-25 15:35:01 -07:00
Nick Owens
fbf65674a4 net: add client arch and fix user class/terminator
send client arch in bootp requests, for now BIOS and x64/aarch64 EFI is
supported.

fix a bug introduced in 4d5d7be005 where
user class was encoded improperly, although this didn't seem to have any
detrimental effects.

properly insert an option terminator.
2016-07-08 15:39:04 -07:00
Nick Owens
a1724dace5 Merge pull request #27 from mischief/cmddevice
set cmddevice when cmdpath is set
2016-06-01 14:08:23 -07:00
Nick Owens
5470929309 set cmddevice when cmdpath is set 2016-06-01 13:55:45 -07:00
Andrei Borzenkov
b524fa27f5 net: translate pxe prefix to tftp when checking for self-load
Commit ba218c1 missed legacy pxe and pxe: prefixes which are
translated to tftp, so comparison failed.
2016-05-03 19:23:31 +03:00
Andrei Borzenkov
e045af148a net: reset net->stall in grub_net_seek_real
If we open new connection, we need to reset stall indication, otherwise
nothing will ever be polled (low level code rely on this field being
zero when establishing connection).
2016-04-30 09:15:36 +03:00
Stefan Fritsch
13f7ead3a1 http: reset EOF indication in http_seek
Otherwise next read will stop polling too early due to stale EOF
indicator, returning incomplete data to caller.
2016-04-30 09:13:34 +03:00
Mike Gilbert
7a5b301e3a build: Use AC_HEADER_MAJOR to find device macros
Depending on the OS/libc, device macros are defined in different
headers. This change ensures we include the right one.

sys/types.h - BSD
sys/mkdev.h - Sun
sys/sysmacros.h - glibc (Linux)

glibc currently pulls sys/sysmacros.h into sys/types.h, but this may
change in a future release.

https://sourceware.org/ml/libc-alpha/2015-11/msg00253.html
2016-04-24 08:12:42 +03:00
Nick Owens
68ae3c416b Merge pull request #26 from mischief/getenv-efi
grub-core: enable getenv for all efi targets
2016-04-14 15:03:43 -07:00
Nick Owens
70b45a45b9 grub-core: enable getenv for all efi targets 2016-04-14 14:47:39 -07:00
Michael Chang
abf9beb7d6 http: fix superfluous null line in range request header
At least the apache sever is very unhappy with that extra null line and will
take more than ten seconds in responding to each range request, which slows
down a lot the entire http file transfer process or even time out.
2016-04-09 07:08:13 +03:00
mjg59
ad906495e1 Merge pull request #25 from mjg59/tpm
Fix event log prefix
2016-03-29 21:29:47 -07:00
Matthew Garrett
aab446306b Fix event log prefix
We're not passing the prefixed version of the description to the event log.
Fix that.
2016-03-29 15:36:49 -07:00
mjg59
a067b998e0 Merge pull request #24 from mjg59/coreos
Netboot updates
2016-03-24 15:12:06 -07:00