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fragattacks: disabling HW crypto is not needed

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Mathy Vanhoef 2020-08-11 11:15:40 +04:00
parent 9a0886b0e1
commit c80fe6c682
1 changed files with 0 additions and 52 deletions
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research/hwcrypto.sh
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@ -1,52 +0,0 @@
#!/bin/bash
# Copyright (c) 2020, Mathy Vanhoef <mathy.vanhoef@nyu.be>
#
# This code may be distributed under the terms of the BSD license.
# See README for more details.
set -e
NOHWCRYPT="ath5k ath9k ath9k_htc rt2800usb carl9170 b43 p54common rt2500usb rt2800pci rt2800usb rt73usb"
SWCRYPTO="iwlwifi iwl3945 iwl4965"
HWCRYPTO="ipw2200"
hwcrypt_remove_modules() {
# Remove loaded modules so they'll reload parameters
for MODULE in $NOHWCRYPT $SWCRYPTO $HWCRYPTO
do rmmod $MODULE 2> /dev/null || true; done
}
hwcrypt_off() {
# Create nohwcrypt.conf options file
rm /etc/modprobe.d/nohwcrypt.conf 2> /dev/null || true
for MODULE in $NOHWCRYPT
do echo "options $MODULE nohwcrypt=1" >> /etc/modprobe.d/nohwcrypt.conf; done
for MODULE in $SWCRYPTO
do echo "options $MODULE swcrypto=1" >> /etc/modprobe.d/nohwcrypt.conf; done
for MODULE in $HWCRYPTO
do echo "options $MODULE hwcrypto=0" >> /etc/modprobe.d/nohwcrypt.conf; done
# Done. To be sure parameters are reloaded, reboot computer.
hwcrypt_remove_modules
echo "Done. Reboot your computer."
}
hwcrypt_on() {
rm -f /etc/modprobe.d/nohwcrypt.conf
hwcrypt_remove_modules
echo "Done. Reboot your computer."
}
if [[ $1 == "on" ]]; then
hwcrypt_on
elif [[ $1 == "off" ]]; then
hwcrypt_off
else
echo "Usage: $0 on|off"
fi