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  1. 19 10月, 2018 1 次提交
    • M
      dm crypt: make workqueue names device-specific · ed0302e8
      由 Michał Mirosław 提交于 
      Make cpu-usage debugging easier by naming workqueues per device.

Example ps output:

root       413  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd_io/253:0]
root       414  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd/253:0]
root       415  0.0  0.0      0     0 ?        S    paź02   1:10  [dmcrypt_write/253:0]
root       465  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd_io/253:2]
root       466  0.0  0.0      0     0 ?        I<   paź02   0:00  [kcryptd/253:2]
root       467  0.0  0.0      0     0 ?        S    paź02   2:06  [dmcrypt_write/253:2]
root     15359  0.2  0.0      0     0 ?        I<   19:43   0:25  [kworker/u17:8-kcryptd/253:0]
root     16563  0.2  0.0      0     0 ?        I<   20:10   0:18  [kworker/u17:0-kcryptd/253:2]
root     23205  0.1  0.0      0     0 ?        I<   21:21   0:04  [kworker/u17:4-kcryptd/253:0]
root     13383  0.1  0.0      0     0 ?        I<   21:32   0:02  [kworker/u17:2-kcryptd/253:2]
root      2610  0.1  0.0      0     0 ?        I<   21:42   0:01  [kworker/u17:12-kcryptd/253:2]
root     20124  0.1  0.0      0     0 ?        I<   21:56   0:01  [kworker/u17:1-kcryptd/253:2]
Signed-off-by: NMichał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      ed0302e8
  3. 07 9月, 2018 1 次提交
  5. 14 8月, 2018 1 次提交
  7. 28 7月, 2018 2 次提交
  9. 13 6月, 2018 1 次提交
    • K
      treewide: kzalloc() -> kcalloc() · 6396bb22
      由 Kees Cook 提交于 
      The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)
Signed-off-by: NKees Cook <keescook@chromium.org>
      6396bb22
  11. 08 6月, 2018 1 次提交
  13. 03 6月, 2018 1 次提交
  15. 31 5月, 2018 1 次提交
  17. 04 4月, 2018 2 次提交
    • M
      dm crypt: limit the number of allocated pages · 5059353d
      由 Mikulas Patocka 提交于 
      dm-crypt consumes an excessive amount memory when the user attempts to
zero a dm-crypt device with "blkdiscard -z". The command "blkdiscard -z"
calls the BLKZEROOUT ioctl, it goes to the function __blkdev_issue_zeroout,
__blkdev_issue_zeroout sends a large amount of write bios that contain
the zero page as their payload.

For each incoming page, dm-crypt allocates another page that holds the
encrypted data, so when processing "blkdiscard -z", dm-crypt tries to
allocate the amount of memory that is equal to the size of the device.
This can trigger OOM killer or cause system crash.

Fix this by limiting the amount of memory that dm-crypt allocates to 2%
of total system memory. This limit is system-wide and is divided by the
number of active dm-crypt devices and each device receives an equal
share.

Cc: stable@vger.kernel.org
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      5059353d
    • M
      dm: allow targets to return output from messages they are sent · 1eb5fa84
      由 Mike Snitzer 提交于 
      Could be useful for a target to return stats or other information.
If a target does DMEMIT() anything to @result from its .message method
then it must return 1 to the caller.
Signed-off-By: NMike Snitzer <snitzer@redhat.com>
      1eb5fa84
  19. 17 1月, 2018 4 次提交
  21. 07 1月, 2018 1 次提交
  23. 14 12月, 2017 1 次提交
    • N
      dm crypt: remove BIOSET_NEED_RESCUER flag · 80cd1757
      由 NeilBrown 提交于 
      The BIOSET_NEED_RESCUER flag is only needed when a make_request_fn might
do two allocations from the one bioset, and the second one could block
until the first bio completes.

dm-crypt does allocate from this bioset inside the dm make_request_fn,
but does so using GFP_NOWAIT so that the allocation will not block.

So BIOSET_NEED_RESCUER is not needed.
Signed-off-by: NNeilBrown <neilb@suse.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      80cd1757
  25. 11 11月, 2017 1 次提交
  27. 04 10月, 2017 1 次提交
  29. 29 9月, 2017 1 次提交
  31. 28 8月, 2017 1 次提交
  33. 24 8月, 2017 1 次提交
    • C
      block: replace bi_bdev with a gendisk pointer and partitions index · 74d46992
      由 Christoph Hellwig 提交于 
      This way we don't need a block_device structure to submit I/O.  The
block_device has different life time rules from the gendisk and
request_queue and is usually only available when the block device node
is open.  Other callers need to explicitly create one (e.g. the lightnvm
passthrough code, or the new nvme multipathing code).

For the actual I/O path all that we need is the gendisk, which exists
once per block device.  But given that the block layer also does
partition remapping we additionally need a partition index, which is
used for said remapping in generic_make_request.

Note that all the block drivers generally want request_queue or
sometimes the gendisk, so this removes a layer of indirection all
over the stack.
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
      74d46992
  35. 10 8月, 2017 1 次提交
  37. 04 8月, 2017 1 次提交
    • A
      crypto: algapi - make crypto_xor() take separate dst and src arguments · 45fe93df
      由 Ard Biesheuvel 提交于 
      There are quite a number of occurrences in the kernel of the pattern

  if (dst != src)
          memcpy(dst, src, walk.total % AES_BLOCK_SIZE);
  crypto_xor(dst, final, walk.total % AES_BLOCK_SIZE);

or

  crypto_xor(keystream, src, nbytes);
  memcpy(dst, keystream, nbytes);

where crypto_xor() is preceded or followed by a memcpy() invocation
that is only there because crypto_xor() uses its output parameter as
one of the inputs. To avoid having to add new instances of this pattern
in the arm64 code, which will be refactored to implement non-SIMD
fallbacks, add an alternative implementation called crypto_xor_cpy(),
taking separate input and output arguments. This removes the need for
the separate memcpy().
Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>
      45fe93df
  39. 19 6月, 2017 3 次提交
  41. 09 6月, 2017 2 次提交
  43. 28 4月, 2017 1 次提交
  45. 26 4月, 2017 1 次提交
  47. 25 4月, 2017 3 次提交
  49. 09 4月, 2017 1 次提交
  51. 25 3月, 2017 5 次提交
    • M
      dm crypt: use shifts instead of sector_div · ff3af92b
      由 Mikulas Patocka 提交于 
      sector_div is very slow, so we introduce a variable sector_shift and
use shift instead of sector_div.
Signed-off-by: NMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      ff3af92b
    • M
      dm crypt: optionally support larger encryption sector size · 8f0009a2
      由 Milan Broz 提交于 
      Add  optional "sector_size"  parameter that specifies encryption sector
size (atomic unit of block device encryption).

Parameter can be in range 512 - 4096 bytes and must be power of two.
For compatibility reasons, the maximal IO must fit into the page limit,
so the limit is set to the minimal page size possible (4096 bytes).

NOTE: this device cannot yet be handled by cryptsetup if this parameter
is set.

IV for the sector is calculated from the 512 bytes sector offset unless
the iv_large_sectors option is used.

Test script using dmsetup:

  DEV="/dev/sdb"
  DEV_SIZE=$(blockdev --getsz $DEV)
  KEY="9c1185a5c5e9fc54612808977ee8f548b2258d31ddadef707ba62c166051b9e3cd0294c27515f2bccee924e8823ca6e124b8fc3167ed478bca702babe4e130ac"
  BLOCK_SIZE=4096

  # dmsetup create test_crypt --table "0 $DEV_SIZE crypt aes-xts-plain64 $KEY 0 $DEV 0 1 sector_size:$BLOCK_SIZE"
  # dmsetup table --showkeys test_crypt
Signed-off-by: NMilan Broz <gmazyland@gmail.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      8f0009a2
    • M
      dm crypt: introduce new format of cipher with "capi:" prefix · 33d2f09f
      由 Milan Broz 提交于 
      For the new authenticated encryption we have to support generic composed
modes (combination of encryption algorithm and authenticator) because
this is how the kernel crypto API accesses such algorithms.

To simplify the interface, we accept an algorithm directly in crypto API
format.  The new format is recognised by the "capi:" prefix.  The
dmcrypt internal IV specification is the same as for the old format.

The crypto API cipher specifications format is:
     capi:cipher_api_spec-ivmode[:ivopts]
Examples:
     capi:cbc(aes)-essiv:sha256 (equivalent to old aes-cbc-essiv:sha256)
     capi:xts(aes)-plain64      (equivalent to old aes-xts-plain64)
Examples of authenticated modes:
     capi:gcm(aes)-random
     capi:authenc(hmac(sha256),xts(aes))-random
     capi:rfc7539(chacha20,poly1305)-random

Authenticated modes can only be configured using the new cipher format.
Note that this format allows user to specify arbitrary combinations that
can be insecure. (Policy decision is done in cryptsetup userspace.)

Authenticated encryption algorithms can be of two types, either native
modes (like GCM) that performs both encryption and authentication
internally, or composed modes where user can compose AEAD with separate
specification of encryption algorithm and authenticator.

For composed mode with HMAC (length-preserving encryption mode like an
XTS and HMAC as an authenticator) we have to calculate HMAC digest size
(the separate authentication key is the same size as the HMAC digest).
Introduce crypt_ctr_auth_cipher() to parse the crypto API string to get
HMAC algorithm and retrieve digest size from it.

Also, for HMAC composed mode we need to parse the crypto API string to
get the cipher mode nested in the specification.  For native AEAD mode
(like GCM), we can use crypto_tfm_alg_name() API to get the cipher
specification.

Because the HMAC composed mode is not processed the same as the native
AEAD mode, the CRYPT_MODE_INTEGRITY_HMAC flag is no longer needed and
"hmac" specification for the table integrity argument is removed.
Signed-off-by: NMilan Broz <gmazyland@gmail.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      33d2f09f
    • M
      dm crypt: factor IV constructor out to separate function · e889f97a
      由 Milan Broz 提交于 
      No functional change.
Signed-off-by: NMilan Broz <gmazyland@gmail.com>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      e889f97a
    • M
      dm crypt: add cryptographic data integrity protection (authenticated encryption) · ef43aa38
      由 Milan Broz 提交于 
      Allow the use of per-sector metadata, provided by the dm-integrity
module, for integrity protection and persistently stored per-sector
Initialization Vector (IV).  The underlying device must support the
"DM-DIF-EXT-TAG" dm-integrity profile.

The per-bio integrity metadata is allocated by dm-crypt for every bio.

Example of low-level mapping table for various types of use:
 DEV=/dev/sdb
 SIZE=417792

 # Additional HMAC with CBC-ESSIV, key is concatenated encryption key + HMAC key
 SIZE_INT=389952
 dmsetup create x --table "0 $SIZE_INT integrity $DEV 0 32 J 0"
 dmsetup create y --table "0 $SIZE_INT crypt aes-cbc-essiv:sha256 \
 11ff33c6fb942655efb3e30cf4c0fd95f5ef483afca72166c530ae26151dd83b \
 00112233445566778899aabbccddeeff00112233445566778899aabbccddeeff \
 0 /dev/mapper/x 0 1 integrity:32:hmac(sha256)"

 # AEAD (Authenticated Encryption with Additional Data) - GCM with random IVs
 # GCM in kernel uses 96bits IV and we store 128bits auth tag (so 28 bytes metadata space)
 SIZE_INT=393024
 dmsetup create x --table "0 $SIZE_INT integrity $DEV 0 28 J 0"
 dmsetup create y --table "0 $SIZE_INT crypt aes-gcm-random \
 11ff33c6fb942655efb3e30cf4c0fd95f5ef483afca72166c530ae26151dd83b \
 0 /dev/mapper/x 0 1 integrity:28:aead"

 # Random IV only for XTS mode (no integrity protection but provides atomic random sector change)
 SIZE_INT=401272
 dmsetup create x --table "0 $SIZE_INT integrity $DEV 0 16 J 0"
 dmsetup create y --table "0 $SIZE_INT crypt aes-xts-random \
 11ff33c6fb942655efb3e30cf4c0fd95f5ef483afca72166c530ae26151dd83b \
 0 /dev/mapper/x 0 1 integrity:16:none"

 # Random IV with XTS + HMAC integrity protection
 SIZE_INT=377656
 dmsetup create x --table "0 $SIZE_INT integrity $DEV 0 48 J 0"
 dmsetup create y --table "0 $SIZE_INT crypt aes-xts-random \
 11ff33c6fb942655efb3e30cf4c0fd95f5ef483afca72166c530ae26151dd83b \
 00112233445566778899aabbccddeeff00112233445566778899aabbccddeeff \
 0 /dev/mapper/x 0 1 integrity:48:hmac(sha256)"

Both AEAD and HMAC protection authenticates not only data but also
sector metadata.

HMAC protection is implemented through autenc wrapper (so it is
processed the same way as an authenticated mode).

In HMAC mode there are two keys (concatenated in dm-crypt mapping
table).  First is the encryption key and the second is the key for
authentication (HMAC).  (It is userspace decision if these keys are
independent or somehow derived.)

The sector request for AEAD/HMAC authenticated encryption looks like this:
 |----- AAD -------|------ DATA -------|-- AUTH TAG --|
 | (authenticated) | (auth+encryption) |              |
 | sector_LE |  IV |  sector in/out    |  tag in/out  |

For writes, the integrity fields are calculated during AEAD encryption
of every sector and stored in bio integrity fields and sent to
underlying dm-integrity target for storage.

For reads, the integrity metadata is verified during AEAD decryption of
every sector (they are filled in by dm-integrity, but the integrity
fields are pre-allocated in dm-crypt).

There is also an experimental support in cryptsetup utility for more
friendly configuration (part of LUKS2 format).

Because the integrity fields are not valid on initial creation, the
device must be "formatted".  This can be done by direct-io writes to the
device (e.g. dd in direct-io mode).  For now, there is available trivial
tool to do this, see: https://github.com/mbroz/dm_int_toolsSigned-off-by: NMilan Broz <gmazyland@gmail.com>
Signed-off-by: NOndrej Mosnacek <omosnacek@gmail.com>
Signed-off-by: NVashek Matyas <matyas@fi.muni.cz>
Signed-off-by: NMike Snitzer <snitzer@redhat.com>
      ef43aa38