This patch adds a better dcerpc server infastructure.

1.) We now register endpoint servers add startup via register_backend()
    and later use the smb.conf 'dcerpc endpoint servers' parameter to setup the dcesrv_context

2.) each endpoint server can register at context creation time as much interfaces as it wants
    (multiple interfaces on one endpoint are supported!)
    (NOTE:  there's a difference between 'endpoint server' and 'endpoint'!
	    for details look at rpc_server/dcesrv_server.h)

3.) one endpoint can have a security descriptor registered to it self
    this will be checked in the future when a client wants to connect
    to an smb pipe endpoint.

4.) we now have a 'remote' endpoint server, which works like the ntvfs_cifs module
    it takes this options in the [globals] section:

    dcerpc remote:interfaces = srvsvc, winreg, w32time, epmapper
    dcerpc remote:binding = ...
    dcerpc remote:user = ...
    dcerpc remote:password = ...

5.) we currently have tree endpoint servers: epmapper, rpcecho and remote

    the default for the 'dcerpc endpiont servers = epmapper, rpcecho'

    for testing you can also do
    dcerpc endpoint servers = rpcecho, remote, epmapper
    dcerpc remote:interfaces = srvsvc, samr, netlogon

6,) please notice the the epmapper now only returns NO_ENTRIES
    (but I think we'll find a solution for this too:-)

7.) also there're some other stuff left, but step by step :-)

This patch also includes updates for the
register_subsystem() , ntvfs_init(), and some other funtions
to check for duplicate subsystem registration


metze

(hmmm, my first large commit...I hope it works as supposed :-)
(This used to be commit 917e45dafd5be4c2cd90ff425b8d6f8403122349)

1 files changed, 13 insertions, 1 deletions

diff --git a/source4/lib/module.c b/source4/lib/module.c
index ffd6a38c77..15f92db59e 100644
--- a/source4/lib/module.c
+++ b/source4/lib/module.c
@@ -125,9 +125,19 @@ struct subsystem {
 
 static struct subsystem *subsystems = NULL;
 
-void register_subsystem(const char *name, register_backend_function callback) 
+NTSTATUS register_subsystem(const char *name, register_backend_function callback) 
 {
 	struct subsystem *s;
+	struct subsystem *t = subsystems;
+
+	while(t) {
+		if(!strcmp(name, t->name)) {
+			/* its already registered! */
+			DEBUG(0,("SUBSYSTEM '%s' for type already registered\n", name));
+			return NT_STATUS_OBJECT_NAME_COLLISION;
+		}
+		t = t->next;
+	}
 
 	s = smb_xmalloc(sizeof(struct subsystem));
 
@@ -136,6 +146,8 @@ void register_subsystem(const char *name, register_backend_function callback)
 	s->prev = s->next = NULL;
 
 	DLIST_ADD(subsystems, s);
+
+	return NT_STATUS_OK;
 }
 
 NTSTATUS register_backend(const char *subsystem, void *args)