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cifs: add fallback in is_path_accessible for old servers

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commit 221d1d7972 upstream.

The is_path_accessible check uses a QPathInfo call, which isn't
supported by ancient win9x era servers. Fall back to an older
SMBQueryInfo call if it fails with the magic error codes.

Reported-and-Tested-by: Sandro Bonazzola <sandro.bonazzola@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jeff Layton 2011-05-17 06:40:30 -04:00 committed by Greg Kroah-Hartman
parent 6518ee4817
commit 46042172f1
1 changed files with 5 additions and 0 deletions
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5
fs/cifs/connect.c
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@ -2231,6 +2231,11 @@ is_path_accessible(int xid, struct cifsTconInfo *tcon,
0 /* not legacy */, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
if (rc == -EOPNOTSUPP || rc == -EINVAL)
rc = SMBQueryInformation(xid, tcon, full_path, pfile_info,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
kfree(pfile_info);
return rc;
}