r2561: completely redid the ntvfs module chaining code, You can now do something like:

  ntvfs handler = nbench posix

and the nbench pass-thru module will be called before the posix
module. The chaining logic is now much saner, and less racy, with each
level in the chain getting its own private pointer rather than relying
on save/restore logic in the pass-thru module.

The only pass-thru module we have at the moment is the nbench one
(which records all traffic in a nbench compatibe format), but I plan
on soon writing a "unixuid" pass-thru module that will implement the
setegid()/setgroups()/seteuid() logic for standard posix uid
handling. This separation of the posix backend from the uid handling
should simplify the code, and make development easier.

I also modified the nbench module so it can do multiple chaining, so
if you want to you can do:

   ntvfs module = nbench nbench posix

and it will save 2 copies of the log file in /tmp. This is really only
useful for testing at the moment until we have more than one pass-thru
module.
(This used to be commit f84c0af35cb54c8fdc4933afefc18fa4c062aae4)

1 files changed, 5 insertions, 2 deletions

diff --git a/source4/smb_server/smb_server.h b/source4/smb_server/smb_server.h
index 59fb03ea2e..b7f9e04385 100644
--- a/source4/smb_server/smb_server.h
+++ b/source4/smb_server/smb_server.h
@@ -62,8 +62,8 @@ struct smbsrv_tcon {
 	/* the server context that this was created on */
 	struct smbsrv_connection *smb_conn;
 
-	/* a private structure used by the active NTVFS backend */
-	void *ntvfs_private;
+	/* an array of private structures used by the active NTVFS backends */
+	void **ntvfs_private_list;
 
 	uint16_t cnum; /* an index passed over the wire (the TID) */
 	int service;
@@ -93,6 +93,9 @@ struct smbsrv_request {
 	/* the session context is derived from the vuid */
 	struct smbsrv_session *session;
 
+	/* the ntvfs chaining depth */
+	int ntvfs_depth;
+
 	/* a set of flags to control usage of the request. See REQ_CONTROL_* */
 	unsigned control_flags;