Commit graph

48 commits

Author SHA1 Message Date
Eric Snowberg
28031a0791 efidisk: NULL pointer dereference in grub_efidisk_get_device_name()
Function grub_efi_find_last_device_path() may return NULL when called
from grub_efidisk_get_device_name().

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 19:37:19 -04:00
Eric Snowberg
3ed79c36da efidisk: NULL pointer dereference in is_child()
Function grub_efi_find_last_device() path may return NULL when called
from is_child().

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 19:37:19 -04:00
Eric Snowberg
3d8f6ea345 efidisk: Write to NULL pointer ldp
Function grub_efi_find_last_device_path() may return constant NULL when
called from find_parent_device().

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2020-09-21 19:37:19 -04:00
Vladimir Serbinenko
f762850a1c 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>
2020-09-21 19:37:19 -04:00
Andrei Borzenkov
4bd4a88725 i386, x86_64, ppc: fix switch fallthrough cases with GCC7
In util/getroot and efidisk slightly modify exitsing comment to mostly
retain it but still make GCC7 compliant with respect to fall through
annotation.

In grub-core/lib/xzembed/xz_dec_lzma2.c it adds same comments as
upstream.

In grub-core/tests/setjmp_tets.c declare functions as "noreturn" to
suppress GCC7 warning.

In grub-core/gnulib/regexec.c use new __attribute__, because existing
annotation is not recognized by GCC7 parser (which requires that comment
immediately precedes case statement).

Otherwise add FALLTHROUGH comment.

Closes: 50598
2017-04-04 19:23:55 +03:00
Andrei Borzenkov
c42cb97f08 efi: skip iPXE block device.
iPXE adds Simple File System Protocol to loaded image handle, as side
effect it also adds Block IO protocol (according to comments, to work
around some bugs in EDK2). GRUB assumes that every device with Block IO
is disk and skips network initialization entirely. But iPXE Block IO
implementation is just a stub which always fails for every operation
so cannot be used. Attempt to detect and skip such devices.

We are using media ID which iPXE sets to "iPXE" and block IO size in
hope that no real device would announce 1B block ...

Closes: 50518
2017-03-14 04:14:36 +00:00
Leif Lindholm
51f375d688 efidisk: Respect block_io_protocol buffer alignment
Returned from the OpenProtocol operation, the grub_efi_block_io_media
structure contains the io_align field, specifying the minimum alignment
required for buffers used in any data transfers with the device.

Make grub_efidisk_readwrite() allocate a temporary buffer, aligned to
this boundary, if the buffer passed to it does not already meet the
requirements.

Also sanity check the io_align field in grub_efidisk_open() for
power-of-two-ness and bail if invalid.
2016-02-27 13:44:59 +01:00
Andrei Borzenkov
109189ce01 efidisk: fix misplaced parenthesis in b00e4c2 2016-02-27 15:16:48 +03:00
Andrei Borzenkov
b00e4c2bd9 efidisk: prevent errors from diskfilter scan of removable drives
Map EFI_NO_MEDIA to GRUB_ERR_OUT_OF_RANGE that is ignored by diskfilter. This
actually matches pretty close (we obviously attempt to read outside of media)
and avoids adding more error codes.

This affects only internally initiated scans. If read/write from removable is
explicitly requested, we still return an error and text explanation is more
clear for user than generic error.

Reported and tested by Andreas Loew <Andreas.Loew@gmx.net>
2016-02-26 21:44:37 +03:00
Andrei Borzenkov
e9d71db53a efidisk: fix memory leak
Found by: Coverity scan.
CID: 96644
2016-01-12 21:52:50 +03:00
Andrei Borzenkov
7b386b7031 efidisk: move device path helpers in core for efinet 2015-05-07 20:37:16 +03:00
Vladimir Serbinenko
7d027b4d3e efidisk: Return the determined root disk even if partition is unknown. 2015-01-24 19:53:13 +01:00
Vladimir Serbinenko
dc3286ade4 * grub-core/disk/efi/efidisk.c (name_devices): Skip Apple ghosts. 2013-12-24 20:32:14 +01:00
Vladimir Serbinenko
6dc3337774 Fix definition of grub_efi_hard_drive_device_path. Take care that
existing code would work even if by some reason bogus definition is
	used by EFI implementations.
2013-12-14 22:04:02 +01:00
Vladimir Serbinenko
219401b8b9 * include/grub/efi/api.h (grub_efi_device_path): Define length as
unaligned u16 rather than u8[2].
2013-12-11 15:54:01 +01:00
Vladimir Serbinenko
203f53fbbe * grub-core/disk/efi/efidisk.c (grub_efidisk_readwrite): Remove unused
variable.
2013-11-02 18:50:39 +01:00
Vladimir Serbinenko
cb72aa1809 Rewrite blocklist functions in order to get progress when
reading large extents and decrease amount of blocklist hook calls.
2013-11-01 23:28:03 +01:00
Vladimir 'phcoder' Serbinenko
0f7c00c1c6 * grub-core/disk/efi/efidisk.c (grub_efidisk_get_device_name): Handle
CD-ROM in case when it's declared as having subpartitions.
2013-10-19 02:23:08 +02:00
Andrey Borzenkov
44016e527a * grub-core/disk/efi/efidisk.c (grub_efidisk_get_device_name):
Handle CD-ROMs.
2013-10-14 17:06:39 +02:00
Colin Watson
607319c9ab * grub-core/disk/efi/efidisk.c (grub_efidisk_get_device_name_iter):
Remove no-longer-true __attribute__ ((unused)) on disk parameter.
2013-09-18 15:43:58 +01:00
Vladimir 'phcoder' Serbinenko
e2f27a8c53 Enforce disabling of firmware disk drivers when native drivers kick in. 2013-04-29 12:16:46 +02:00
Vladimir 'phcoder' Serbinenko
b193e10034 * grub-core/disk/efi/efidisk.c: Detect floppies by ACPI ID.
It improves performance in qemu.
2013-04-17 19:05:57 +02:00
Andrey Borzenkov
284df0e263 * grub-core/disk/efi/efidisk.c: Really limit transfer chunk size. 2013-04-16 22:10:59 +02:00
Peter Jones
a7e03923fa * grub-core/disk/efi/efidisk.c: Limit disk read or write chunk to 0x500
sectors.
	Based on patch by Peter Jones.
2013-04-15 09:12:14 +02:00
Vladimir 'phcoder' Serbinenko
1865baa72c Replace 8 with GRUB_CHAR_BIT in several places when appropriate. 2013-04-05 10:59:26 +02:00
Peter Jones
efe0cddae8 * grub-core/disk/efi/efidisk.c: Handle partitions on non-512B disks.
Also-By: Vladimir Serbinenko <phcoder@gmail.com>
2013-04-04 10:35:50 +02:00
Vladimir 'phcoder' Serbinenko
f42e3a2f67 * grub-core/disk/efi/efidisk.c: Transform iterate_child_devices into
a FOR_CHILDREN macro.
2013-03-01 10:37:11 +01:00
Andrey Borzenkov
21aecde5f6 * grub-core/disk/efi/efidisk.c(grub_efidisk_get_device_name): Fix
memory leak if device name is not found.
2013-02-26 22:45:00 +01:00
Colin Watson
25239370fd Remove nested functions from device iterators.
* include/grub/arc/arc.h (grub_arc_iterate_devs_hook_t): New type.
(grub_arc_iterate_devs): Add hook_data argument.
* include/grub/ata.h (grub_ata_dev_iterate_hook_t): New type.
(struct grub_ata_dev.iterate): Add hook_data argument.
* include/grub/device.h (grub_device_iterate_hook_t): New type.
(grub_device_iterate): Add hook_data argument.
* include/grub/disk.h (grub_disk_dev_iterate_hook_t): New type.
(struct grub_disk_dev.iterate): Add hook_data argument.
(grub_disk_dev_iterate): Likewise.
* include/grub/gpt_partition.h (grub_gpt_partition_map_iterate):
Likewise.
* include/grub/msdos_partition.h (grub_partition_msdos_iterate):
Likewise.
* include/grub/partition.h (grub_partition_iterate_hook_t): New
type.
(struct grub_partition_map.iterate): Add hook_data argument.
(grub_partition_iterate): Likewise.
* include/grub/scsi.h (grub_scsi_dev_iterate_hook_t): New type.
(struct grub_scsi_dev.iterate): Add hook_data argument.

Update all callers.
2013-01-20 15:52:15 +00:00
Vladimir 'phcoder' Serbinenko
a176740446 * grub-core/disk/efi/efidisk.c (find_parent_device): Return the parent
even if it's used.
	(name_devices): Replace #if 0 with #ifdef DEBUG_NAMES.
	Skip if parent is unused.
2012-06-09 10:43:24 +02:00
Vladimir 'phcoder' Serbinenko
3d2de9a7ba * grub-core/disk/efi/efidisk.c (name_devices): Don't make disks
out of partitions containing other partitions.
2012-06-07 21:55:55 +02:00
Vladimir 'phcoder' Serbinenko
d61386e21d Improve string. Gettextize. 2012-02-12 15:25:25 +01:00
Vladimir 'phcoder' Serbinenko
8a7f9b9c50 Simplify root device discover and don't fail when trying to open
incorrect devices.

	* grub-core/disk/efi/efidisk.c (get_diskname_from_path_real): New
	function.
	(get_diskname_from_path): Likewise.
	(grub_efidisk_get_device_name): Use get_diskname_from_path instead
	of iterating.
2012-01-28 13:26:20 +01:00
Vladimir 'phcoder' Serbinenko
02a2bf8384 Add noreturn attributes and remove unreachable code.
* grub-core/bus/cs5536.c (grub_cs5536_smbus_wait): Remove unreachable
	code.
	* grub-core/commands/halt.c (grub_cmd_halt): Remove unreachable
	code. Mark as noreturn.
	* grub-core/commands/minicmd.c (grub_mini_cmd_exit): Likewise.
	* grub-core/commands/reboot.c (grub_cmd_reboot): Likewise.
	* grub-core/disk/efi/efidisk.c (grub_efidisk_get_device_name): Remove
	unreachable code.
	* grub-core/kern/main.c (grub_main): Mark as noreturn.
	* grub-core/kern/rescue_reader.c (grub_rescue_run): Likewise.
	* grub-core/lib/posix_wrap/stdlib.h (abort): Likewise.
	* grub-core/normal/menu.c (run_menu): Remove unreachable code.
	* include/grub/kernel.h (grub_main): Mark as noreturn.
	* include/grub/reader.h (grub_rescue_run): Likewise.
2011-12-13 15:13:51 +01:00
Vladimir 'phcoder' Serbinenko
c4edd54832 * grub-core/disk/efi/efidisk.c (grub_efidisk_get_device_name): Fix
incorrect memory usage.
2011-07-10 15:33:57 +02:00
Vladimir 'phcoder' Serbinenko
0044d1db2e Simplify disk opening 2011-07-07 21:46:25 +02:00
Vladimir 'phcoder' Serbinenko
00542307eb merge mainline into lazy 2011-07-07 12:21:53 +02:00
Vladimir 'phcoder' Serbinenko
cae730b452 Automatically determine prefix when netbooted on EFI 2011-07-02 16:56:35 +02:00
Vladimir 'phcoder' Serbinenko
574618a2e9 unify prefix handling across platforms 2011-07-02 14:09:36 +02:00
Vladimir 'phcoder' Serbinenko
bd671cc4fe Use Block IO on EFI 2011-04-15 18:15:06 +02:00
Vladimir 'phcoder' Serbinenko
6ac14e6cef Fix EFI compilation 2011-04-05 09:34:58 +02:00
Vladimir 'phcoder' Serbinenko
09573499ff Initial variable sector size support 2011-03-29 02:02:55 +02:00
Colin Watson
d7dbe92395 * grub-core/disk/efi/efidisk.c (grub_efidisk_get_device_name): Make
tpart non-const, so that we can assign to it.  (Since this is a
typedef, the constness refers to the pointer rather than what it
points to.)
2010-09-21 13:41:23 +01:00
Vladimir 'phcoder' Serbinenko
74342e312f Support some annoying BSD and Minix subpartitions.
* Makefile.util.def (libgrub.a): Add grub-core/partmap/bsdlabel.c.
	* grub-core/disk/efi/efidisk.c (grub_efidisk_get_device_name):
	Properly handle concatenation.
	* grub-core/kern/device.c (grub_device_iterate): Likewise.
	* grub-core/normal/completion.c (iterate_partition): Likewise.
	* grub-core/kern/disk.c (grub_disk_open): Make disk->name not
	contain partition. All users updated.
	* grub-core/partmap/bsdlabel.c (grub_netbsdlabel_partition_map): New
	struct.
	(grub_openbsdlabel_partition_map): Likewise.
	(bsdlabel_partition_map_iterate): Rename to ..
	(iterate_real): ... this. New arguments sector, freebsd and pmap.
	(bsdlabel_partition_map_iterate): New function.
	(netopenbsdlabel_partition_map_iterate): Likewise.
	(netbsdlabel_partition_map_iterate): Likewise.
	(openbsdlabel_partition_map_iterate): Likewise.
	(GRUB_MOD_INIT): Register new partmaps.
	(GRUB_MOD_FINI): Unregister new partmaps.
	* grub-core/partmap/msdos.c (pc_partition_map_iterate): Rename to ...
	(grub_partition_msdos_iterate): ... this. All users updated.
	Don't support embedding other than in a minix partition.
	* include/grub/msdos_partition.h (grub_partition_msdos_iterate): New
	proto.
	* include/grub/partition.h (grub_partition): New field msdostype.
	* util/grub-install.in: Handle openbsd and netbsd types being in
	part_bsd module.
2010-09-20 21:45:06 +02:00
Vladimir 'phcoder' Serbinenko
94564f81a8 * include/grub/disk.h (grub_disk): Remove has_partitions.
All users updated.
	* disk/loopback.c (grub_loopback): Remove has_partitions.
	All users updated.
	(options): Remove partitions. All users updated.
	* util/grub-fstest.c (fstest): Don't pass "-p" to loopback.
	* util/i386/pc/grub-setup.c (setup): copy partition table only when
	actual partition table is found.
2010-09-13 23:59:22 +02:00
Vladimir 'phcoder' Serbinenko
43de930c20 Change to disk->name being raw name. It makes less hidden issues 2010-09-08 21:22:41 +02:00
Vladimir 'phcoder' Serbinenko
3fcb410549 Fix a double device name 2010-09-08 20:39:57 +02:00
BVK Chaitanya
8c41176882 automake commit without merge history 2010-05-06 11:34:04 +05:30