I have stared at it long enough, and still can't make out what's missing.
I'm trying to mount an aes-cbc-plain encrypted disk with cryptsetup-1.3.0 on kernel-2.6.37.6:
root@dockstar:~# cryptsetup luksOpen /dev/sda2 storage
Enter passphrase for /dev/sda2:
device-mapper: reload ioctl failed: No such file or directory
Failed to setup dm-crypt key mapping for device /dev/sda2.
Check that kernel supports aes-cbc-plain cipher (check syslog for more info).
Failed to read from key storage.
May 17 15:34:27 dockstar kern.err kernel: device-mapper: table: 254:0: crypt: Error allocating crypto tfm
May 17 15:34:27 dockstar kern.warn kernel: device-mapper: ioctl: error adding target to table
According to /proc/crypto aes-cbc should be working correctly:
root@dockstar:~# cat /proc/crypto
name : sha1
driver : sha1-generic
module : sha1_generic
priority : 0
refcnt : 1
selftest : passed
type : shash
blocksize : 64
digestsize : 20
name : hmac(sha1)
driver : mv-hmac-sha1
module : mv_cesa
priority : 300
refcnt : 1
selftest : passed
type : ahash
async : yes
blocksize : 64
digestsize : 20
name : sha1
driver : mv-sha1
module : mv_cesa
priority : 300
refcnt : 1
selftest : passed
type : ahash
async : yes
blocksize : 64
digestsize : 20
name : cbc(aes)
driver : mv-cbc-aes
module : mv_cesa
priority : 300
refcnt : 1
selftest : passed
type : ablkcipher
async : yes
blocksize : 16
min keysize : 16
max keysize : 32
ivsize : 16
geniv : <default>
name : ecb(aes)
driver : mv-ecb-aes
module : mv_cesa
priority : 300
refcnt : 1
selftest : passed
type : ablkcipher
async : yes
blocksize : 16
min keysize : 16
max keysize : 32
ivsize : 0
geniv : <default>
name : aes
driver : aes-generic
module : aes_generic
priority : 100
refcnt : 1
selftest : passed
type : cipher
blocksize : 16
min keysize : 16
max keysize : 32
name : crc32c
driver : crc32c-generic
module : crc32c
priority : 100
refcnt : 2
selftest : passed
type : shash
blocksize : 1
digestsize : 4
root@dockstar:~# lsmod
aead 3340 1 cryptomgr
aes_generic 33156 1 mv_cesa
cbc 1656 0
crc32c 1960 1
crypto_algapi 8412 7 mv_cesa,cbc,aes_generic,crypto_blkcipher,cryptomgr,aead,crypto_hash
crypto_blkcipher 8701 3 dm_crypt,mv_cesa,cbc
crypto_hash 7260 4 sha1_generic,mv_cesa,libcrc32c,crc32c
cryptomgr 1732 0
dm_crypt 9944 0
dm_log 6676 2 dm_mirror,dm_region_hash
dm_mirror 10520 0
dm_mod 43952 3 dm_crypt,dm_mirror,dm_log
dm_region_hash 4852 1 dm_mirror
mv_cesa 7380 0
sha1_generic 1232 0
root@dockstar:~# cryptsetup luksDump /dev/sda2
LUKS header information for /dev/sda2
Version: 1
Cipher name: aes
Cipher mode: cbc-plain
Hash spec: sha1
Payload offset: 2056
MK bits: 256
MK digest: 6a [...]
Key Slot 0: ENABLED
[...]
Thanks for any pointers,
Jan
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