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Patrick Schleizer 2022-06-29 15:50:20 -04:00
parent 0b0cda8f8f
commit af8b211c23
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GPG Key ID: CB8D50BB77BB3C48
1 changed files with 9 additions and 1 deletions
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10
usr/lib/dracut/modules.d/40sdmem-security-misc/wipe.sh
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@ -6,6 +6,10 @@
ram_wipe() { ram_wipe() {
info "$0: START: COLD BOOT ATTACK DEFENSE - RAM WIPE ON SHUTDOWN" info "$0: START: COLD BOOT ATTACK DEFENSE - RAM WIPE ON SHUTDOWN"
local OLD_DRACUT_QUIET
OLD_DRACUT_QUIET="$DRACUT_QUIET"
DRACUT_QUIET='no'
info "$0: Checking if there are still mounted encrypted disks..." info "$0: Checking if there are still mounted encrypted disks..."
local dmsetup_actual_output dmsetup_expected_output local dmsetup_actual_output dmsetup_expected_output
@ -21,7 +25,7 @@ $0: There are still mounted encrypted disks! RAM wipe failed!
debugging information: debugging information:
dmsetup_expected_output: '$dmsetup_expected_output' dmsetup_expected_output: '$dmsetup_expected_output'
dmsetup_actual_output: '$dmsetup_actual_output'" dmsetup_actual_output: '$dmsetup_actual_output'"
sleep 10 sleep 5
return 0 return 0
fi fi
@ -31,6 +35,10 @@ dmsetup_actual_output: '$dmsetup_actual_output'"
sdmem -l -l -f sdmem -l -l -f
info "$0: RAM wipe completed, OK." info "$0: RAM wipe completed, OK."
## Restore to previous value.
DRACUT_QUIET="$OLD_DRACUT_QUIET"
info "$0: END: COLD BOOT ATTACK DEFENSE - RAM WIPE ON SHUTDOWN" info "$0: END: COLD BOOT ATTACK DEFENSE - RAM WIPE ON SHUTDOWN"
sleep 3 sleep 3
} }