[Xenial][PULL] CIFS: Enable encryption for SMB3

Joshua R. Poulson jrp at pun.org
Mon May 8 21:11:36 UTC 2017


I'll add it to our queue.

On Mon, May 8, 2017 at 12:31 PM, Thadeu Lima de Souza Cascardo
<cascardo at canonical.com> wrote:
> On Mon, Mar 27, 2017 at 12:00:54PM -0400, Joseph Salisbury wrote:
>> There has been work upstream to enable encryption support for SMB3
>> connections. This is a particularly valuable (and commonly requested)
>> feature with the Azure Files service as encryption is required to connect
>> to an Azure Files storage share from on-prem or from a different Azure region.
>>
>> BugLink: http://bugs.launchpad.net/bugs/1670508
>
> This does not apply to xenial master-next, mainly due to commits
> 35067b7fba326a76624769e03afeb4b5ff182041 and
> f068ccac8a390dca36ee914ca3dfe7c8fb82bc12.
>
> I have reverted those, rebased, did a simple fixup on cherry-pick of
> ae6f8dd4d0c87bfb72da9d9b56342adf53e69c31 (now a backport), then applied
> those two commits again, by the way of cherry picking.
>
> It builds, but can we get some testing before the end of the week?
>
> It's at
> git+ssh://git.launchpad.net/~cascardo/ubuntu/+source/linux/+git/xenial,
> branch cifs.
>
> Thanks.
> Cascardo.
>
>>
>> The following changes since commit 05022128a513a344d156de5bffd88e3dda4c8da6:
>>
>>   UBUNTU: Ubuntu-4.4.0-66.87 (2017-03-03 13:13:10 +0100)
>>
>> are available in the git repository at:
>>
>>   kernel.ubuntu.com:/srv/kernel.ubuntu.com/git/jsalisbury/bugs/lp1670508/ubuntu-xenial.git
>>
>> for you to fetch changes up to a16041fde91bd7e13bd1e237a8ca9a1cd28877bf:
>>
>>   CIFS: Fix possible use after free in demultiplex thread (2017-03-27 11:52:33 -0400)
>>
>> ----------------------------------------------------------------
>> Al Viro (5):
>>       [net] drop 'size' argument of sock_recvmsg()
>>       cifs: merge the hash calculation helpers
>>       cifs: no need to wank with copying and advancing iovec on recvmsg side either
>>       cifs: don't bother with kmap on read_pages side
>>       cifs_readv_receive: use cifs_read_from_socket()
>>
>> Jean Delvare (3):
>>       cifs: Simplify SMB2 and SMB311 dependencies
>>       cifs: Only select the required crypto modules
>>       cifs: Add soft dependencies
>>
>> Pavel Shilovsky (16):
>>       CIFS: Separate SMB2 header structure
>>       CIFS: Make SendReceive2() takes resp iov
>>       CIFS: Make send_cancel take rqst as argument
>>       CIFS: Send RFC1001 length in a separate iov
>>       CIFS: Separate SMB2 sync header processing
>>       CIFS: Separate RFC1001 length processing for SMB2 read
>>       CIFS: Add capability to transform requests before sending
>>       CIFS: Enable encryption during session setup phase
>>       CIFS: Encrypt SMB3 requests before sending
>>       CIFS: Add transform header handling callbacks
>>       CIFS: Add mid handle callback
>>       CIFS: Add copy into pages callback for a read operation
>>       CIFS: Decrypt and process small encrypted packets
>>       CIFS: Add capability to decrypt big read responses
>>       CIFS: Allow to switch on encryption with seal mount option
>>       CIFS: Fix possible use after free in demultiplex thread
>>
>> Sachin Prabhu (3):
>>       Fix memory leaks in cifs_do_mount()
>>       SMB2: Separate Kerberos authentication from SMB2_sess_setup
>>       SMB2: Separate RawNTLMSSP authentication from SMB2_sess_setup
>>
>> Steve French (4):
>>       cifs: Make echo interval tunable
>>       Prepare for encryption support (first part). Add decryption and encryption key generation. Thanks to Metze for helping with this.
>>       SMB3: Add mount parameter to allow user to override max credits
>>       SMB3: parsing for new snapshot timestamp mount parm
>>
>>  drivers/target/iscsi/iscsi_target_util.c |    5 +-
>>  fs/cifs/Kconfig                          |   12 +-
>>  fs/cifs/cifsencrypt.c                    |  130 ++--
>>  fs/cifs/cifsfs.c                         |   16 +
>>  fs/cifs/cifsglob.h                       |   64 +-
>>  fs/cifs/cifsproto.h                      |   28 +-
>>  fs/cifs/cifssmb.c                        |  146 ++--
>>  fs/cifs/connect.c                        |  273 ++++----
>>  fs/cifs/file.c                           |  101 +--
>>  fs/cifs/misc.c                           |    2 +-
>>  fs/cifs/sess.c                           |   27 +-
>>  fs/cifs/smb1ops.c                        |    4 +-
>>  fs/cifs/smb2glob.h                       |   13 +-
>>  fs/cifs/smb2maperror.c                   |    5 +-
>>  fs/cifs/smb2misc.c                       |   83 ++-
>>  fs/cifs/smb2ops.c                        |  698 ++++++++++++++++++-
>>  fs/cifs/smb2pdu.c                        | 1104 +++++++++++++++++++-----------
>>  fs/cifs/smb2pdu.h                        |   35 +-
>>  fs/cifs/smb2proto.h                      |    8 +-
>>  fs/cifs/smb2transport.c                  |  337 +++++----
>>  fs/cifs/transport.c                      |  171 +++--
>>  include/linux/net.h                      |    3 +-
>>  net/socket.c                             |   23 +-
>>  23 files changed, 2297 insertions(+), 991 deletions(-)
>>
>> --
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>
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