[CIFS] Add compat with SFU (part 2)

Creating FIFOs to non-Unix servers (with cifs mounts for which sfu option
was specified) now works.

Signed-off-by: Steve French (sfrench@us.ibm.com)

Thanks to Martin Koeppe for his assistance

1 files changed, 8 insertions, 2 deletions

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 56d79fd90679..fbe651858c88 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -738,7 +738,13 @@ openRetry:
         }
         pSMB->DesiredAccess = cpu_to_le32(access_flags);
         pSMB->AllocationSize = 0;
-        pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL);
+        /* set file as system file if special file such
+           as fifo and server expecting SFU style and
+           no Unix extensions */
+        if(create_options & CREATE_OPTION_SPECIAL)
+                pSMB->FileAttributes = cpu_to_le32(ATTR_SYSTEM);
+        else
+                pSMB->FileAttributes = cpu_to_le32(ATTR_NORMAL);
         /* XP does not handle ATTR_POSIX_SEMANTICS */
         /* but it helps speed up case sensitive checks for other
         servers such as Samba */
@@ -752,7 +758,7 @@ openRetry:
                 being created */
         pSMB->ShareAccess = cpu_to_le32(FILE_SHARE_ALL);
         pSMB->CreateDisposition = cpu_to_le32(openDisposition);
-        pSMB->CreateOptions = cpu_to_le32(create_options);
+        pSMB->CreateOptions = cpu_to_le32(create_options & CREATE_OPTIONS_MASK);
         /* BB Expirement with various impersonation levels and verify */
         pSMB->ImpersonationLevel = cpu_to_le32(SECURITY_IMPERSONATION);
         pSMB->SecurityFlags =