This fails with exceptional uselessness if you (as I am) are using a
kernel which does not allow module loading at all.
The check for a kernel module in the file system should only be carried
out if no aes ciphers are found in /proc/crypto.
Probably as so:
+++/lib/cryptsetup/cryptdisks.functions:
load_optimized_aes_module () {
local asm_module modulesdir
+
+ # only load if not already loaded
+ local drv_loaded=`cat /proc/crypto | grep driver\ *:\ *aes-`
+ if [ -z "$drv_loaded" ]; then
# find directory with kernel modules
modulesdir="/lib/modules/`uname -r`"
# Add assembly optimized AES module if it exists
asm_module=`ls -1 "$modulesdir"/kernel/arch/*/*/aes*.ko`
if [ $asm_module ];then
insmod $asm_module 2>/dev/null || true
fi
+
+ fi
}
Additionally the check should be weakened to not fail if the module does not
load:
+++/lib/cryptsetup/cryptdisks.functions:
do_start () {
local dst src key opts result
modprobe -qb dm-mod || true
modprobe -qb dm-crypt || true
dmsetup mknodes > /dev/null 2>&1 || true
log_action_begin_msg "Starting $INITSTATE crypto disks"
- load_optimized_aes_module
+ load_optimized_aes_module || true
mount_fs
--
cryptdisks problem, script fails to load architecture dependent aes kernel
module
https://bugs.launchpad.net/bugs/154392
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