mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-21 00:10:09 +00:00
Code Issues Releases Wiki Activity

cifs: update Kconfig description

Browse source 
There were various outdated or missing things in fs/cifs/Kconfig
e.g. mention of support for insecure NTLM which has been removed,
and lack of mention of some important features. This also shortens
it slightly, and fixes some confusing text (e.g. the SMB1 POSIX
extensions option).

Reviewed-by: Namjae Jeon <linkinjeon@kernel.org>
Acked-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Steve French 2023-01-30 18:57:06 -06:00
parent d4fba63fe1
commit ed2f1d9cea
1 changed files with 28 additions and 31 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

59
fs/cifs/Kconfig
View file

@ -19,39 +19,36 @@ config CIFS
select ASN1
select OID_REGISTRY
help
This is the client VFS module for the SMB3 family of NAS protocols,
(including support for the most recent, most secure dialect SMB3.1.1)
as well as for earlier dialects such as SMB2.1, SMB2 and the older
Common Internet File System (CIFS) protocol. CIFS was the successor
to the original dialect, the Server Message Block (SMB) protocol, the
native file sharing mechanism for most early PC operating systems.
This is the client VFS module for the SMB3 family of network file
protocols (including the most recent, most secure dialect SMB3.1.1).
This module also includes support for earlier dialects such as
SMB2.1, SMB2 and even the old Common Internet File System (CIFS)
protocol. CIFS was the successor to the original network filesystem
protocol, Server Message Block (SMB ie SMB1), the native file sharing
mechanism for most early PC operating systems.
The SMB3 protocol is supported by most modern operating systems
and NAS appliances (e.g. Samba, Windows 10, Windows Server 2016,
MacOS) and even in the cloud (e.g. Microsoft Azure).
The older CIFS protocol was included in Windows NT4, 2000 and XP (and
later) as well by Samba (which provides excellent CIFS and SMB3
server support for Linux and many other operating systems). Use of
dialects older than SMB2.1 is often discouraged on public networks.
The SMB3.1.1 protocol is supported by most modern operating systems
and NAS appliances (e.g. Samba, Windows 11, Windows Server 2022,
MacOS) and even in the cloud (e.g. Microsoft Azure) and also by the
Linux kernel server, ksmbd. Support for the older CIFS protocol was
included in Windows NT4, 2000 and XP (and later). Use of dialects
older than SMB2.1 is often discouraged on public networks.
This module also provides limited support for OS/2 and Windows ME
and similar very old servers.
This module provides an advanced network file system client
for mounting to SMB3 (and CIFS) compliant servers. It includes
support for DFS (hierarchical name space), secure per-user
session establishment via Kerberos or NTLM or NTLMv2, RDMA
(smbdirect), advanced security features, per-share encryption,
directory leases, safe distributed caching (oplock), optional packet
signing, Unicode and other internationalization improvements.
This module provides an advanced network file system client for
mounting to SMB3 (and CIFS) compliant servers. It includes support
for DFS (hierarchical name space), secure per-user session
establishment via Kerberos or NTLMv2, RDMA (smbdirect), advanced
security features, per-share encryption, packet-signing, snapshots,
directory leases, safe distributed caching (leases), multichannel,
Unicode and other internationalization improvements.
In general, the default dialects, SMB3 and later, enable better
performance, security and features, than would be possible with CIFS.
Note that when mounting to Samba, due to the CIFS POSIX extensions,
CIFS mounts can provide slightly better POSIX compatibility
than SMB3 mounts. SMB2/SMB3 mount options are also
slightly simpler (compared to CIFS) due to protocol improvements.
If you need to mount to Samba, Azure, Macs or Windows from this machine, say Y.
If you need to mount to Samba, Azure, ksmbd, Macs or Windows from this
machine, say Y.
config CIFS_STATS2
bool "Extended statistics"
@ -111,12 +108,12 @@ config CIFS_POSIX
depends on CIFS && CIFS_ALLOW_INSECURE_LEGACY && CIFS_XATTR
help
Enabling this option will cause the cifs client to attempt to
negotiate a newer dialect with servers, such as Samba 3.0.5
or later, that optionally can handle more POSIX like (rather
than Windows like) file behavior. It also enables
support for POSIX ACLs (getfacl and setfacl) to servers
(such as Samba 3.10 and later) which can negotiate
CIFS POSIX ACL support. If unsure, say N.
negotiate a feature of the older cifs dialect with servers, such as
Samba 3.0.5 or later, that optionally can handle more POSIX like
(rather than Windows like) file behavior. It also enables support
for POSIX ACLs (getfacl and setfacl) to servers (such as Samba 3.10
and later) which can negotiate CIFS POSIX ACL support. This config
option is not needed when mounting with SMB3.1.1. If unsure, say N.
config CIFS_DEBUG
bool "Enable CIFS debugging routines"