[dm-devel] [PATCH v2 0/3] dm-crypt: Adds support for wiping key when doing suspend/hibernation
Pali Rohár
pali.rohar at gmail.com
Sun Jun 21 11:20:31 UTC 2015
This patch series increase security of suspend and hibernate actions. It allows
user to safely wipe crypto keys before suspend and hibernate actions starts
without race conditions on userspace process with heavy I/O.
To automatically wipe cryto key for <device> before hibernate action call:
$ dmsetup message <device> 0 key wipe_on_hibernation
To automatically wipe cryto key for <device> before suspend action call:
$ dmsetup message <device> 0 key wipe_on_suspend
To disable automatic wipe call retain_on_suspend/retain_on_hibernation.
Pali Rohár (3):
PM suspend/hibernate: Call notifier after freezing processes
dm: Export function dm_suspend_md()
dm-crypt: Adds support for wiping key when doing suspend/hibernation
drivers/md/dm-crypt.c | 126 +++++++++++++++++++++++++++++++++++++++++++---
drivers/md/dm.c | 6 +++
drivers/md/dm.h | 5 ++
include/linux/suspend.h | 2 +
kernel/power/hibernate.c | 2 +
kernel/power/suspend.c | 4 +-
6 files changed, 136 insertions(+), 9 deletions(-)
--
1.7.9.5
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