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osdep/devmapper/getroot: Have devmapper recognize LUKS2

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Changes UUID comparisons so that LUKS1 and LUKS2 are both recognized
as being LUKS cryptodisks.

Signed-off-by: Josselin Poiret <dev@jpoiret.xyz>
Tested-by: Glenn Washburn <development@efficientek.com>
Reviewed-by: Patrick Steinhardt <ps@pks.im>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Josselin Poiret 2023-01-12 17:05:08 -06:00 committed by Daniel Kiper
parent efc9c363b2
commit 9022a48dd9
1 changed files with 7 additions and 4 deletions
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11
grub-core/osdep/devmapper/getroot.c
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@ -138,7 +138,8 @@ grub_util_get_dm_abstraction (const char *os_dev)
grub_free (uuid);
return GRUB_DEV_ABSTRACTION_LVM;
}
if (strncmp (uuid, "CRYPT-LUKS1-", 12) == 0)
if (strncmp (uuid, "CRYPT-LUKS1-", sizeof ("CRYPT-LUKS1-") - 1) == 0
|| strncmp (uuid, "CRYPT-LUKS2-", sizeof ("CRYPT-LUKS2-") - 1) == 0)
{
grub_free (uuid);
return GRUB_DEV_ABSTRACTION_LUKS;
@ -179,7 +180,9 @@ grub_util_pull_devmapper (const char *os_dev)
grub_util_pull_device (subdev);
}
}
if (uuid && strncmp (uuid, "CRYPT-LUKS1-", sizeof ("CRYPT-LUKS1-") - 1) == 0
if (uuid
&& (strncmp (uuid, "CRYPT-LUKS1-", sizeof ("CRYPT-LUKS1-") - 1) == 0
|| strncmp (uuid, "CRYPT-LUKS2-", sizeof ("CRYPT-LUKS2-") - 1) == 0)
&& lastsubdev)
{
char *grdev = grub_util_get_grub_dev (lastsubdev);
@ -253,11 +256,11 @@ grub_util_get_devmapper_grub_dev (const char *os_dev)
{
char *dash;
dash = grub_strchr (uuid + sizeof ("CRYPT-LUKS1-") - 1, '-');
dash = grub_strchr (uuid + sizeof ("CRYPT-LUKS*-") - 1, '-');
if (dash)
*dash = 0;
grub_dev = grub_xasprintf ("cryptouuid/%s",
uuid + sizeof ("CRYPT-LUKS1-") - 1);
uuid + sizeof ("CRYPT-LUKS*-") - 1);
grub_free (uuid);
return grub_dev;
}