[PATCH] device-mapper: dm-crypt generator extension
Create crypt_iv_operations structure with generator method and move the plain iv generator into this structure. Optionally accept an extended <sector format> syntax: <cipher>-<chaining mode>-<iv mode> This also makes it ready to support chaining modes other than CBC mode, such as CMC (not implemented in cryptoapi yet), The problems outlined by Adam J. Richter in http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/454 would be fixed by switching to CMC chaining mode. Example of a valid target line: 0 200 crypt aes-cbc-plain 00000000000000000000000000000000 0 /dev/loop/5 0 Signed-Off-By: Alasdair G Kergon <agk@redhat.com> Signed-Off-By: Christophe Saout <christophe@saout.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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