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path: root/Documentation/device-mapper/dm-crypt.txt
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2012-01-06Revert "dm crypt: add multi key capability"Kasoju Mallikarjun
This reverts commit d1f9642381847e2b94caa34c3533211cf36ffcf4. Change-Id: If1879b331c1f0e3dea7433c5de53ac653743d9c2 Reviewed-on: http://git-master/r/72234 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Mallikarjun Kasoju <mkasoju@nvidia.com> Tested-by: Mallikarjun Kasoju <mkasoju@nvidia.com> Tested-by: Ahung Cheng <ahcheng@nvidia.com> Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
2011-08-02dm crypt: optionally support discard requestsMilan Broz
Add optional parameter field to dmcrypt table and support "allow_discards" option. Discard requests bypass crypt queue processing. Bio is simple remapped to underlying device. Note that discard will be never enabled by default because of security consequences. It is up to the administrator to enable it for encrypted devices. (Note that userspace cryptsetup does not understand new optional parameters yet. Support for this will come later. Until then, you should use 'dmsetup' to enable and disable this.) Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-02-15Merge branch 'master' into for-nextJiri Kosina
2011-01-13Documentation: dm-crypt: update cryptsetup homepageAndrea Gelmini
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Acked-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-01-13dm crypt: add multi key capabilityMilan Broz
This patch adds generic multikey handling to be used in following patch for Loop-AES mode compatibility. This patch extends mapping table to optional keycount and implements generic multi-key capability. With more keys defined the <key> string is divided into several <keycount> sections and these are used for tfms. The tfm is used according to sector offset (sector 0->tfm[0], sector 1->tfm[1], sector N->tfm[N modulo keycount]) (only power of two values supported for keycount here). Because of tfms per-cpu allocation, this mode can be take a lot of memory on large smp systems. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: Max Vozeler <max@hinterhof.net>
2010-08-04Documentation: update broken web addresses.Justin P. Mattock
Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-04-25dm crypt: add documentationMilan Broz
Add description of dm-crypt to device-mapper documentation. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>