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authorAurelien Aptel <aaptel@suse.com>2017-02-22 14:47:17 +0100
committerSteve French <smfrench@gmail.com>2017-03-03 00:04:58 +0100
commitf0712928be1a66c99c35f871b4df7fa23ec1574a (patch)
tree3262f33e0131838da803cc1e7c20da2605bbc6f3 /fs/sysv
parentCIFS: set signing flag in SMB2+ TreeConnect if needed (diff)
downloadlinux-f0712928be1a66c99c35f871b4df7fa23ec1574a.tar.xz
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CIFS: use DFS pathnames in SMB2+ Create requests
When connected to a DFS capable share, the client must set the SMB2_FLAGS_DFS_OPERATIONS flag in the SMB2 header and use DFS path names: "<server>\<share>\<path>" *without* leading \\. Sources: [MS-SMB2] 3.2.5.5 Receiving an SMB2 TREE_CONNECT Response > TreeConnect.IsDfsShare MUST be set to TRUE, if the SMB2_SHARE_CAP_DFS > bit is set in the Capabilities field of the response. [MS-SMB2] 3.2.4.3 Application Requests Opening a File > If TreeConnect.IsDfsShare is TRUE, the SMB2_FLAGS_DFS_OPERATIONS flag > is set in the Flags field. [MS-SMB2] 2.2.13 SMB2 CREATE Request, NameOffset: > If SMB2_FLAGS_DFS_OPERATIONS is set in the Flags field of the SMB2 > header, the file name includes a prefix that will be processed during > DFS name normalization as specified in section 3.3.5.9. Otherwise, the > file name is relative to the share that is identified by the TreeId in > the SMB2 header. Signed-off-by: Aurelien Aptel <aaptel@suse.com> Acked-by: Pavel Shilovsky <pshilov@microsoft.com> Signed-off-by: Steve French <smfrench@gmail.com>
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