Searched hist:"2 dc5327d" (Results 1 – 1 of 1) sorted by relevance
| /openbmc/linux/drivers/md/ |
| H A D | dm-crypt.c | 2dc5327d Thu Jan 13 13:59:54 CST 2011 Milan Broz <mbroz@redhat.com> dm crypt: add post iv call to iv generator
IV (initialisation vector) can in principle depend not only
on sector but also on plaintext data (or other attributes).
Change IV generator interface to work directly with dmreq
structure to allow such dependence in generator.
Also add post() function which is called after the crypto
operation.
This allows tricky modification of decrypted data or IV
internals.
In asynchronous mode the post() can be called after
ctx->sector count was increased so it is needed
to add iv_sector copy directly to dmreq structure.
(N.B. dmreq always include only one sector in scatterlists)
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2dc5327d Thu Jan 13 13:59:54 CST 2011 Milan Broz <mbroz@redhat.com> dm crypt: add post iv call to iv generator
IV (initialisation vector) can in principle depend not only
on sector but also on plaintext data (or other attributes).
Change IV generator interface to work directly with dmreq
structure to allow such dependence in generator.
Also add post() function which is called after the crypto
operation.
This allows tricky modification of decrypted data or IV
internals.
In asynchronous mode the post() can be called after
ctx->sector count was increased so it is needed
to add iv_sector copy directly to dmreq structure.
(N.B. dmreq always include only one sector in scatterlists)
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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