> > I try to build loop-AES-v1.4f (latest) on a RedHat 7.2 Linux i686.
> > Unfortunately the "make tests" failes:
> >
> > # make tests
> > dd if=/dev/zero of=test-file1 bs=1024 count=10
> > 10+0 records in
> > 10+0 records out
> > cp test-file1 test-file3
> > echo 12345678901234567890 | losetup -p 0 -e AES128 /dev/loop7 test-file1
> > ioctl: LOOP_SET_STATUS: Invalid argument
> > make: *** [tests] Error 1
>
>You probably have 2 loop.o modules in /lib/modules/`uname -r`/ tree.
>
>Can you try "make modules_install" after compiling your kernel. "make
>modules_install" is supposed to remove the old wrong loop.o module if
>CONFIG_BLK_DEV_LOOP is N.
I don't have "CONFIG_BLK_DEV_LOOP is N", I have "# CONFIG_BLK_DEV_LOOP is
not set" but I suppose that is ok.
Anyway, I will try "make modules_install" after the kernel compilation:
# find /lib/modules/ -name "loop.o"
/lib/modules/2.4.9-13/kernel/drivers/block/loop.o
/lib/modules/2.4.9-13custom/block/loop.o
(2.4.9-13custom was created by "make" with loop-AES.)
# cd /usr/src/linux-2.4.9-13
# make modules_install
[...]
But the "loop.o" didn't got removed:
# find /lib/modules/ -name "loop.o"
/lib/modules/2.4.9-13/kernel/drivers/block/loop.o
/lib/modules/2.4.9-13custom/block/loop.o
So since it still is there I removed it by hand:
# mv /lib/modules/2.4.9-13/kernel/drivers/block/loop.o /tmp/
# find /lib/modules/ -name "loop.o"
/lib/modules/2.4.9-13custom/block/loop.o
No "loop.o" is loaded so far:
# lsmod
Module Size Used by
nfs 79872 4 (autoclean)
lockd 53168 1 (autoclean) [nfs]
sunrpc 64816 1 (autoclean) [nfs lockd]
binfmt_misc 6448 1
autofs 11584 2 (autoclean)
3c59x 26496 1
ipchains 39392 0
usb-uhci 21696 0 (unused)
usbcore 51808 1 [usb-uhci]
ext3 62480 7
jbd 41056 7 [ext3]
Now for the "make tests" again:
# make tests
dd if=/dev/zero of=test-file1 bs=1024 count=10
10+0 records in
10+0 records out
cp test-file1 test-file3
echo 12345678901234567890 | losetup -p 0 -e AES128 /dev/loop7 test-file1
/dev/loop7: No such device or address
make: *** [tests] Error 1
:-(
But then... :-) I read Paul Hilton's comment "I discovered that one of the
crypto modules was not being loaded automatically, loading them manually
solved the problem.".
So I tried that:
# insmod /lib/modules/2.4.9-13custom/block/loop.o
# lsmod
Module Size Used by
loop 41296 0 (unused)
nfs 79872 5 (autoclean)
lockd 53168 1 (autoclean) [nfs]
sunrpc 64816 1 (autoclean) [nfs lockd]
binfmt_misc 6448 1
autofs 11584 2 (autoclean)
3c59x 26496 1
ipchains 39392 0
usb-uhci 21696 0 (unused)
usbcore 51808 1 [usb-uhci]
ext3 62480 7
jbd 41056 7 [ext3]
# make tests
dd if=/dev/zero of=test-file1 bs=1024 count=10
10+0 records in
10+0 records out
cp test-file1 test-file3
echo 12345678901234567890 | losetup -p 0 -e AES128 /dev/loop7 test-file1
dd if=/dev/zero of=/dev/loop7 bs=1024 count=10 conv=notrunc
10+0 records in
10+0 records out
dd if=/dev/loop7 of=test-file4 bs=10240 count=1
1+0 records in
1+0 records out
losetup -d /dev/loop7
md5sum test-file1 >test-file2
echo "d1ebb2873aec9cee47835c45ebdbb507 test-file1" | cmp test-file2 -
cmp test-file3 test-file4
echo 12345678901234567890 | losetup -p 0 -e AES192 /dev/loop7 test-file1
dd if=/dev/zero of=/dev/loop7 bs=1024 count=10 conv=notrunc
10+0 records in
10+0 records out
dd if=/dev/loop7 of=test-file4 bs=10240 count=1
1+0 records in
1+0 records out
losetup -d /dev/loop7
md5sum test-file1 >test-file2
echo "1ed138ff36b688fd46031cb7b8a24e55 test-file1" | cmp test-file2 -
cmp test-file3 test-file4
echo 12345678901234567890 | losetup -p 0 -e AES256 /dev/loop7 test-file1
dd if=/dev/zero of=/dev/loop7 bs=1024 count=10 conv=notrunc
10+0 records in
10+0 records out
dd if=/dev/loop7 of=test-file4 bs=10240 count=1
1+0 records in
1+0 records out
losetup -d /dev/loop7
md5sum test-file1 >test-file2
echo "818fa5f242bd2ff55244acbde0e9fd8f test-file1" | cmp test-file2 -
cmp test-file3 test-file4
rm -f test-file[1234]
*** Test results ok ***
Whoa, it seem to be ok! :-)
The question is, do I dare to use it since the "6 out of 29 hunks FAILED"
with "make" and loop-AES seem to me a bit scary... but the "Test results ok"
above looks nice anyway...
Best regards,
Jonap
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Linux-crypto: cryptography in and on the Linux system
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