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improvement

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This commit is contained in:
Patrick Schleizer 2022-06-30 13:56:29 -04:00
parent 0e2fae2b69
commit 036f518ddc
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1 changed files with 11 additions and 11 deletions
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22
usr/lib/dracut/modules.d/40cold-boot-attack-defense/wipe-ram.sh
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@ -18,7 +18,17 @@ ram_wipe() {
return 0
fi
info "wipe-ram.sh: START: COLD BOOT ATTACK DEFENSE - RAM WIPE ON SHUTDOWN"
info "wipe-ram.sh: Cold boot attack defense... Starting RAM wipe on shutdown..."
## TODO: sdmem settings. One pass only. Secure? Configurable?
sdmem -l -l -v
info "wipe-ram.sh: RAM wipe completed, OK."
## In theory might be better to check this beforehand, but the test is
## really fast. The user has no chance of reading the console output
## without introducing an artificial delay because the sdmem which runs
## after this, results in much more console output.
info "wipe-ram.sh: Checking if there are still mounted encrypted disks..."
local dmsetup_actual_output dmsetup_expected_output
@ -34,18 +44,8 @@ wipe-ram.sh: There are still mounted encrypted disks! RAM wipe failed!
debugging information:
dmsetup_expected_output: '$dmsetup_expected_output'
dmsetup_actual_output: '$dmsetup_actual_output'"
sleep 5
return 0
fi
info "wipe-ram.sh: Starting RAM wipe..."
## TODO: sdmem settings. One pass only. Secure? Configurable?
sdmem -l -l -v
info "wipe-ram.sh: RAM wipe completed, OK."
info "wipe-ram.sh: END: COLD BOOT ATTACK DEFENSE - RAM WIPE ON SHUTDOWN"
## Restore to previous value.
DRACUT_QUIET="$OLD_DRACUT_QUIET"
sleep 3