path: root/fs/cifs/smb2pdu.c
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authorSachin Prabhu <sprabhu@redhat.com>2016-12-15 12:31:19 +0530
committerSteve French <smfrench@gmail.com>2016-12-15 01:42:54 -0600
commit374402a2a1dfbbee8ab1a5a32ec4887bf8c15d52 (patch)
treee886fc71908f5e2ac4c97b68e30e7b364417cfb2 /fs/cifs/smb2pdu.c
parentFix default behaviour for empty domains and add domainauto option (diff)
cifs_get_root shouldn't use path with tree name
When a server returns the optional flag SMB_SHARE_IS_IN_DFS in response to a tree connect, cifs_build_path_to_root() will return a pathname which includes the hostname. This causes problems with cifs_get_root() which separates each component and does a lookup for each component of the path which in this case will incorrectly include looking up the hostname component as a path component. We encountered a problem with dfs shares hosted by a Netapp. When connecting to nodes pointed to by the DFS share. The tree connect for these nodes return SMB_SHARE_IS_IN_DFS resulting failures in lookup in cifs_get_root(). RH bz: 1373153 The patch was tested against a Netapp simulator and by a user using an actual Netapp server. Signed-off-by: Sachin Prabhu <sprabhu@redhat.com> Reported-by: Pierguido Lambri <plambri@redhat.com> Reviewed-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/smb2pdu.c')
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