Difference between revisions of "LinuxCIFSKernel"

(Created page with "= Linux Kernel CIFS Client = The Linux cifs kernel client has been included in the kernel since 2.5.42. The cifs protocol (and related earlier SMB dialects) is the default ("ver…")
 
Line 3: Line 3:
  
 
== Changes by release ==
 
== Changes by release ==
== 3.15 Kernel ==
+
==   3.15 Kernel ==
 
Bug fixes (aio/write, append, xattrs, metadata caching0
 
Bug fixes (aio/write, append, xattrs, metadata caching0
== 3.14 ==
+
==   3.14 ==
 
Bug Fixes (including DFS refererals when mounted to Samba with Unix Extensions). Security fix for illegal aio write request
 
Bug Fixes (including DFS refererals when mounted to Samba with Unix Extensions). Security fix for illegal aio write request
== 3.13 ==
+
==   3.13 ==
 
Setting/getting '''per-file compression''' ("chattr +c /mnt/filename")
 
Setting/getting '''per-file compression''' ("chattr +c /mnt/filename")
 
CIFS and SMB2/SMB3 CopyChunk ('''server side copy offload support''' added)
 
CIFS and SMB2/SMB3 CopyChunk ('''server side copy offload support''' added)
 
Support for O_DIRECT on "cache=none" mounts ('''specsfs support''')
 
Support for O_DIRECT on "cache=none" mounts ('''specsfs support''')
 
Secure negotiate support ('''SMB3 downgrade attack protection''')
 
Secure negotiate support ('''SMB3 downgrade attack protection''')
== 3.12 ==
+
==   3.12 ==
 
Multiuser SMB3 signing now possible
 
Multiuser SMB3 signing now possible
 
SMB2/SMB3 symlinks
 
SMB2/SMB3 symlinks
 
SMB2.1 Lease (client caching)
 
SMB2.1 Lease (client caching)
== 3.11
+
==   3.11
 
'''SMB3 signing''' (not multiuser)
 
'''SMB3 signing''' (not multiuser)
 
'''Authentication overhaul
 
'''Authentication overhaul
 
SMB2 Durable handle''' (improved data integrity)
 
SMB2 Durable handle''' (improved data integrity)
 
SMB3.02 dialect added
 
SMB3.02 dialect added
== 3.10 ==
+
==   3.10 ==
 
cifs.ko module size reduced
 
cifs.ko module size reduced
 
nosharesock mount option added
 
nosharesock mount option added
== 3.9 ==
+
==   3.9 ==
 
Bug fixes (rename fix, dfs security fix)
 
Bug fixes (rename fix, dfs security fix)
== 3.8 ==
+
==   3.8 ==
 
'''default authentication mechanism strengthened''', moved to ntlmv2 (ntlmv2 in ntlmssp)
 
'''default authentication mechanism strengthened''', moved to ntlmv2 (ntlmv2 in ntlmssp)
 
'''smb2.02 support added'''
 
'''smb2.02 support added'''
== 3.7 ==
+
==   3.7 ==
 
'''SMB2.1 support added'''
 
'''SMB2.1 support added'''
 +
==  3.5 ==
 +
"cache=" mount option needed (making forcedirectio and strictcache mount options obsolete)
 +
==  3.4 ==
 +
'''Faster read ahead performance'.''  Also can allow many more requests in flight for cifs dialect (if server sets maximum multiplex requests above the default, client will now honor it even if more than 50 at one time). Support for "sloppy" mount option.

Revision as of 20:52, 19 May 2014

Linux Kernel CIFS Client

The Linux cifs kernel client has been included in the kernel since 2.5.42. The cifs protocol (and related earlier SMB dialects) is the default ("vers=1.0") but support for newer dialects (SMB2.02, SMB2.1 and SMB3 and SMB3.02) can be selected by specifying "vers=2.0" or "vers=2.1" or "vers=3.0" or "vers=3.02" on mount.

Changes by release

3.15 Kernel

Bug fixes (aio/write, append, xattrs, metadata caching0

3.14

Bug Fixes (including DFS refererals when mounted to Samba with Unix Extensions). Security fix for illegal aio write request

3.13

Setting/getting per-file compression ("chattr +c /mnt/filename") CIFS and SMB2/SMB3 CopyChunk (server side copy offload support added) Support for O_DIRECT on "cache=none" mounts (specsfs support) Secure negotiate support (SMB3 downgrade attack protection)

3.12

Multiuser SMB3 signing now possible SMB2/SMB3 symlinks SMB2.1 Lease (client caching) == 3.11 SMB3 signing (not multiuser) Authentication overhaul SMB2 Durable handle (improved data integrity) SMB3.02 dialect added

3.10

cifs.ko module size reduced nosharesock mount option added

3.9

Bug fixes (rename fix, dfs security fix)

3.8

default authentication mechanism strengthened, moved to ntlmv2 (ntlmv2 in ntlmssp) smb2.02 support added

3.7

SMB2.1 support added

3.5

"cache=" mount option needed (making forcedirectio and strictcache mount options obsolete)

3.4

'Faster read ahead performance'. Also can allow many more requests in flight for cifs dialect (if server sets maximum multiplex requests above the default, client will now honor it even if more than 50 at one time). Support for "sloppy" mount option.