YNQ™ Adds Server/Client SMBv3 Capabilities To WinCE

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The SMB protocol was introduced to Win CE in version 6 back in 2006. Microsoft kept supporting the protocol including in Win7, but did not maintain the SMB library or introduce upgrades for Windows CE to incorporate later protocols – SMB2 and SMB3.
The outdated versions of Windows CE are still in use today mainly in the industrial world, in sectors and areas such as automation and manufacturing, scales and analytical instruments, controllers, ATMs, gas and fluid system components, and energy automation. Due to the nature of these industries, an upgrade to a new operating system is impractical as it will require huge efforts and resources. These circumstances prevent the outdated Windows CE based machines to connect to network shares on Windows machines running SMB version 2 or later.

 

The protocol in use between the different systems

 

 Windows
10 RS3
WS 2019
Windows
10
WS 2016
Windows 8.1
WS 2012 R2
Windows 8
WS 2012
Windows 7
WS 2008 R2
Windows
Vista
WS 2008
Previous
Versions
   
SMB 3.1.1 SMB 3.1.1 SMB 3.1.1 SMB 3.02 SMB 3.0 SMB 2.1 SMB 2.0 SMB 1.0
  Windows 10
RS3 WS 2019

Windows 10
RS3 WS 2019

SMB 3.1.1 SMB 3.1.1 SMB 3.1.1 SMB 3.02 SMB 3.0 SMB 2.1 SMB 2.0 ------
  Windows 10
WS 2016

Windows 10
WS 2016

SMB 3.1.1 SMB 3.1.1 SMB 3.1.1 SMB 3.02 SMB 3.0 SMB 2.1 SMB 2.0 SMB 1.0
  Windows 8.1
WS 2012 R2

Windows 8.1
WS 2012 R2

SMB 3.02 SMB 3.02 SMB 3.02 SMB 3.02 SMB 3.0 SMB 2.1 SMB 2.0 SMB 1.0
  Windows 8
WS 2012

Windows 8
WS 2012

SMB 3.0 SMB 3.0 SMB 3.0 SMB 3.0 SMB 3.0 SMB 2.1 SMB 2.0 SMB 1.0
  Windows 7
WS 2008 R2

Windows 7
WS 2008 R2

SMB 2.1 SMB 2.1 SMB 2.1 SMB 2.1 SMB 2.1 SMB 2.1 SMB 2.0 SMB 1.0
  Windows Vista
WS 2008

Windows Vista
WS 2008

SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.0 SMB 2.0 SMB 1.0
  Previous
Versions

Previous
Versions

SMB 1.0 ------ SMB 1.0 SMB 1.0 SMB 1.0 SMB 1.0 SMB 1.0 SMB 1.0

 

The table above presents the outcome of SMB negotiations between two machines. The version of SMB used between the two machines will be the highest dialect supported by both.
When supported only by SMBv1, a WinCE machine will enforce the usage of SMBv1, which in newer operating systems is no longer supported by default (see article Bid Goodbye to Malware Prone SMBv).


Integrating the off-the-shelf YNQ library into Win CE enables connectivity with any SMB client or server supported machine.

 

FEATURECLIENTSERVER
  Provides access to SMB/CIFS resources on servers and from clients respectfully using
protocol versions NTLM0.12 (SMB1) to SMB 3.1.1
Support all SMB/CIFS versions from NTLM0.12 (SMB1) up to SMB 3.1.1
  SMB Encryption
SMB Encryption
  Message Signing
Message Signing
  Pre-logon integrity
Pre-logon integrity
  File/Directory operations include open, read, write, querying info and more
File/Directory operations include open, read, write, querying info and more
  Network Browsing (domains, hosts and shares)
Network Browsing (domains, hosts and shares)  
  Host resolution through DNS, LLMNR and NetBIOS
Host resolution through DNS, LLMNR and NetBIOS
  Multi-threaded
Multi-threaded  
  Optimized reads and writes
Optimized reads and writes
  Authentication LM to NTLMV2 SPNEGO
Authentication LM to NTLMV2 SPNEGO
  Authentication for Local Users
Authentication for Local Users  
  Active Directory Integration - LDAP
Active Directory Integration - LDAP
  DCERPC over SMB – SAMR, and LSA
DCERPC over SMB – SAMR, and LSA
  DCERPC over SMB – SRVSVC, WKSSVS, WINREG
DCERPC over SMB – SRVSVC, WKSSVS, WINREG
  IPv4 and IPv6 Support
IPv4 and IPv6 Support
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