tablet/grub
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

luks2: Convert to crypt sectors from GRUB native sectors

Browse Source 
The function grub_disk_native_sectors(source) returns the number of sectors
of source in GRUB native (512-byte) sectors, not source sized sectors. So
the conversion needs to use GRUB_DISK_SECTOR_BITS, the GRUB native sector
size.

Signed-off-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Glenn Washburn 2020-12-15 17:31:06 -06:00 committed by Daniel Kiper
parent b298eed001
commit 90fb18632e
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
grub-core/disk/luks2.c
View File

@ -631,7 +631,7 @@ luks2_recover_key (grub_disk_t source,
crypt->log_sector_size = sizeof (unsigned int) * 8
- __builtin_clz ((unsigned int) segment.sector_size) - 1;
if (grub_strcmp (segment.size, "dynamic") == 0)
crypt->total_sectors = (grub_disk_native_sectors (source) >> (crypt->log_sector_size - source->log_sector_size))
crypt->total_sectors = (grub_disk_native_sectors (source) >> (crypt->log_sector_size - GRUB_DISK_SECTOR_BITS))
- crypt->offset_sectors;
else
crypt->total_sectors = grub_strtoull (segment.size, NULL, 10) >> crypt->log_sector_size;