r3689: Large number of COM updates:

 - Work on server side and local COM support (should work, just no
	  example classes yet)
 - Use vtables so that local and remote calls can be used transparently
 - Generate 'proxies and stubs' rather then heavily modified code in client.pm and server.pm. proxies (client side code) are generated in proxy.pm, stubs (server side dispatchers) are generated in stubs.pm
 - Support registering classes and interfaces
 - DCOM interfaces no longer have to be in the same IDL file as their
    base interface, which will allow us to split up dcom.idl
(This used to be commit 7466947a23985f9bb15209b67880f7b94dc515c8)

1 files changed, 166 insertions, 0 deletions

diff --git a/source4/build/pidl/proxy.pm b/source4/build/pidl/proxy.pm
new file mode 100644
index 0000000000..b6d9733419
--- /dev/null
+++ b/source4/build/pidl/proxy.pm
@@ -0,0 +1,166 @@
+###################################################
+# DCOM proxy generator
+# Copyright jelmer@samba.org 2003
+# released under the GNU GPL
+
+package IdlProxy;
+
+use strict;
+
+my($res);
+
+sub ParseVTable($$)
+{
+	my $interface = shift;
+	my $name = shift;
+
+	# Generate the vtable
+	$res .="\tstruct dcom_$interface->{NAME}_vtable $name = {";
+
+	if (defined($interface->{BASE})) {
+		$res .= "\n\t\t{},";
+	}
+
+	my $data = $interface->{DATA};
+
+	foreach my $d (@{$data}) {
+		if ($d->{TYPE} eq "FUNCTION") {
+		    $res .= "\n\t\tdcom_proxy_$interface->{NAME}_$d->{NAME}";
+			$res .= ",";
+		}
+	}
+
+	$res .= "\n\t};\n\n";
+}
+
+sub ParseRegFunc($)
+{
+	my $interface = shift;
+
+	$res .= "NTSTATUS dcom_$interface->{NAME}_init(void)
+{
+	struct dcom_interface iface;
+";
+	
+	ParseVTable($interface, "proxy");
+
+	if (defined($interface->{BASE})) {
+		$res.= "
+	const void *base_vtable;
+
+	GUID_from_string(DCERPC_" . (uc $interface->{BASE}) . "_UUID, &iface.base_iid);
+
+	base_vtable = dcom_proxy_vtable_by_iid(&iface.base_iid);
+	if (base_vtable == NULL) {
+		return NT_STATUS_FOOBAR;
+	}
+
+	proxy.base = *((const struct dcom_$interface->{BASE}_vtable *)base_vtable);
+	";
+	} else {
+		$res .= "\tZERO_STRUCT(iface.base_iid);\n";
+	}
+
+	$res.= "
+	iface.num_methods = DCERPC_" . (uc $interface->{NAME}) . "_CALL_COUNT;
+	GUID_from_string(DCERPC_" . (uc $interface->{NAME}) . "_UUID, &iface.iid);
+	iface.proxy_vtable = talloc_memdup(NULL, &proxy, sizeof(struct dcom_$interface->{NAME}_vtable));
+
+	return register_backend(\"dcom_interface\", &iface);
+}\n\n";
+}
+
+#####################################################################
+# parse a function
+sub ParseFunction($$)
+{
+	my $interface = shift;
+	my $fn = shift;
+	my $name = $fn->{NAME};
+	my $uname = uc $name;
+
+	if (util::has_property($fn, "local")) {
+		$res .= "
+static NTSTATUS dcom_proxy_$interface->{NAME}_$name(struct dcom_interface_p *d, TALLOC_CTX *mem_ctx, struct $name *r)
+{
+	/* FIXME */
+	return NT_STATUS_NOT_SUPPORTED;
+}\n";
+	} else {
+		$res .= "
+static struct rpc_request *dcom_proxy_$interface->{NAME}_$name\_send(struct dcom_interface_p *d, TALLOC_CTX *mem_ctx, struct $name *r)
+{
+	struct dcerpc_pipe *p;
+	NTSTATUS status = dcom_get_pipe(d, &p);
+
+	if (NT_STATUS_IS_ERR(status)) {
+		return NULL;
+	}
+
+	ZERO_STRUCT(r->in.ORPCthis);
+	r->in.ORPCthis.version.MajorVersion = COM_MAJOR_VERSION;
+	r->in.ORPCthis.version.MinorVersion = COM_MINOR_VERSION;
+
+	if (p->flags & DCERPC_DEBUG_PRINT_IN) {
+		NDR_PRINT_IN_DEBUG($name, r);		
+	}
+
+	return dcerpc_ndr_request_send(p, &d->ipid, DCERPC_$uname, mem_ctx,
+	(ndr_push_flags_fn_t) ndr_push_$name,
+	(ndr_pull_flags_fn_t) ndr_pull_$name,
+	r, sizeof(*r));
+}
+
+static NTSTATUS dcom_proxy_$interface->{NAME}_$name(struct dcom_interface_p *d, TALLOC_CTX *mem_ctx, struct $name *r)
+{
+	struct dcerpc_pipe *p;
+	NTSTATUS status = dcom_get_pipe(d, &p);
+	struct rpc_request *req;
+
+	if (NT_STATUS_IS_ERR(status)) {
+		return status;
+	}
+
+	req = dcom_proxy_$interface->{NAME}_$name\_send(d, mem_ctx, r);
+	if (req == NULL) return NT_STATUS_NO_MEMORY;
+
+	status = dcerpc_ndr_request_recv(req);
+
+	if (NT_STATUS_IS_OK(status) && (p->flags & DCERPC_DEBUG_PRINT_OUT)) {
+		NDR_PRINT_OUT_DEBUG($name, r);		
+	}
+	";
+	if ($fn->{RETURN_TYPE} eq "NTSTATUS") {
+		$res .= "\tif (NT_STATUS_IS_OK(status)) status = r->out.result;\n";
+	}
+	$res .= 
+	"
+	return status;
+}";
+	}
+
+	$res .=" 
+NTSTATUS dcom_$interface->{NAME}_$name (struct dcom_interface_p *d, TALLOC_CTX *mem_ctx, struct $name *r)
+{
+	return ((const struct dcom_$interface->{NAME}_vtable *)d->vtable)->$name (d, mem_ctx, r);
+}
+";
+}
+
+
+#####################################################################
+# parse the interface definitions
+sub ParseInterface($)
+{
+	my($interface) = shift;
+	my($data) = $interface->{DATA};
+	$res = "/* DCOM stubs generated by pidl */\n\n";
+	foreach my $d (@{$data}) {
+		($d->{TYPE} eq "FUNCTION") && 
+		ParseFunction($interface, $d);
+	}
+
+	ParseRegFunc($interface);
+}
+
+1;