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linux/fs/ecryptfs/Kconfig

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fs/Kconfig: move ecryptfs out Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-22 08:50:50 +01:00
config ECRYPT_FS
tristate "eCrypt filesystem layer support (EXPERIMENTAL)"
eCryptfs: Remove Kconfig NET dependency and select MD5 eCryptfs no longer uses a netlink interface to communicate with ecryptfsd, so NET is not a valid dependency anymore. MD5 is required and must be built for eCryptfs to be of any use. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2009-09-29 09:33:59 +02:00
depends on EXPERIMENTAL && KEYS && CRYPTO
ecryptfs: improved dependency checking and reporting So, I compiled a 2.6.31-rc5 kernel with ecryptfs and loaded its module. When it came time to mount my filesystem, I got this in dmesg, and it refused to mount: [93577.776637] Unable to allocate crypto cipher with name [aes]; rc = [-2] [93577.783280] Error attempting to initialize key TFM cipher with name = [aes]; rc = [-2] [93577.791183] Error attempting to initialize cipher with name = [aes] and key size = [32]; rc = [-2] [93577.800113] Error parsing options; rc = [-22] I figured from the error message that I'd either forgotten to load "aes" or that my key size was bogus. Neither one of those was the case. In fact, I was missing the CRYPTO_ECB config option and the 'ecb' module. Unfortunately, there's no trace of 'ecb' in that error message. I've done two things to fix this. First, I've modified ecryptfs's Kconfig entry to select CRYPTO_ECB and CRYPTO_CBC. I also took CRYPTO out of the dependencies since the 'select' will take care of it for us. I've also modified the error messages to print a string that should contain both 'ecb' and 'aes' in my error case. That will give any future users a chance of finding the right modules and Kconfig options. I also wonder if we should: select CRYPTO_AES if !EMBEDDED since I think most ecryptfs users are using AES like me. Cc: ecryptfs-devel@lists.launchpad.net Cc: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Dustin Kirkland <kirkland@canonical.com> Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com> [tyhicks@linux.vnet.ibm.com: Removed extra newline, 80-char violation] Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2009-08-27 18:47:07 +02:00
select CRYPTO_ECB
select CRYPTO_CBC
eCryptfs: Remove Kconfig NET dependency and select MD5 eCryptfs no longer uses a netlink interface to communicate with ecryptfsd, so NET is not a valid dependency anymore. MD5 is required and must be built for eCryptfs to be of any use. Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2009-09-29 09:33:59 +02:00
select CRYPTO_MD5
fs/Kconfig: move ecryptfs out Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2009-01-22 08:50:50 +01:00
help
Encrypted filesystem that operates on the VFS layer. See
<file:Documentation/filesystems/ecryptfs.txt> to learn more about
eCryptfs. Userspace components are required and can be
obtained from <http://ecryptfs.sf.net>.
To compile this file system support as a module, choose M here: the
module will be called ecryptfs.
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