[CIFS] CIFS support for named pipes (part 1)

This allows cifs to mount to ipc shares (IPC$)
which will allow user space applications to
layer over authenticated cifs connections
(useful for Wine and others that would want
to put DCE/RPC over CIFS or run CIFS named
pipes)

Acked-by: Rob Shearman <rob@codeweavers.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index bb468de4f474..f55be8efa26d 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -291,6 +291,7 @@ struct cifsTconInfo {
         FILE_SYSTEM_DEVICE_INFO fsDevInfo;
         FILE_SYSTEM_ATTRIBUTE_INFO fsAttrInfo; /* ok if fs name truncated */
         FILE_SYSTEM_UNIX_INFO fsUnixInfo;
+        unsigned ipc:1;         /* set if connection to IPC$ eg for RPC/PIPES */
         unsigned retry:1;
         unsigned nocase:1;
         unsigned unix_ext:1; /* if off disable Linux extensions to CIFS protocol
@@ -341,6 +342,7 @@ struct cifsFileInfo {
         struct list_head llist; /* list of byte range locks we have. */
         unsigned closePend:1;   /* file is marked to close */
         unsigned invalidHandle:1;  /* file closed via session abend */
+        unsigned messageMode:1    /* for pipes: is message or byte mode */
         atomic_t wrtPending;   /* handle in use - defer close */
         struct semaphore fh_sem; /* prevents reopen race after dead ses*/
         char *search_resume_name; /* BB removeme BB */