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|
###################################################
# DCOM parser for Samba
# Basically the glue between COM and DCE/RPC with NDR
# Copyright jelmer@samba.org 2003-2005
# released under the GNU GPL
package Parse::Pidl::Samba4::COM::Proxy;
use Parse::Pidl::Samba4::COM::Header;
use Parse::Pidl::Typelist qw(mapTypeName);
use Parse::Pidl::Util qw(has_property);
use vars qw($VERSION);
$VERSION = '0.01';
use strict;
my($res);
sub ParseVTable($$)
{
my ($interface, $name) = @_;
# Generate the vtable
$res .="\tstruct $interface->{NAME}_vtable $name = {";
if (defined($interface->{BASE})) {
$res .= "\n\t\t{},";
}
my $data = $interface->{DATA};
foreach my $d (@{$data}) {
if ($d->{TYPE} eq "FUNCTION") {
$res .= "\n\t\tdcom_proxy_$interface->{NAME}_$d->{NAME}";
$res .= ",";
}
}
$res .= "\n\t};\n\n";
}
sub ParseRegFunc($)
{
my $interface = shift;
$res .= "static NTSTATUS dcom_proxy_$interface->{NAME}_init(void)
{
struct $interface->{NAME}_vtable *proxy_vtable = talloc(talloc_autofree_context(), struct $interface->{NAME}_vtable);
";
if (defined($interface->{BASE})) {
$res.= "
struct GUID base_iid;
const void *base_vtable;
base_iid = ndr_table_$interface->{BASE}.syntax_id.uuid;
base_vtable = dcom_proxy_vtable_by_iid(&base_iid);
if (base_vtable == NULL) {
DEBUG(0, (\"No proxy registered for base interface '$interface->{BASE}'\\n\"));
return NT_STATUS_FOOBAR;
}
memcpy(&proxy_vtable, base_vtable, sizeof(struct $interface->{BASE}_vtable));
";
}
foreach my $x (@{$interface->{DATA}}) {
next unless ($x->{TYPE} eq "FUNCTION");
$res .= "\tproxy_vtable->$x->{NAME} = dcom_proxy_$interface->{NAME}_$x->{NAME};\n";
}
$res.= "
proxy_vtable->iid = ndr_table_$interface->{NAME}.syntax_id.uuid;
return dcom_register_proxy((struct IUnknown_vtable *)proxy_vtable);
}\n\n";
}
#####################################################################
# parse a function
sub ParseFunction($$)
{
my ($interface, $fn) = @_;
my $name = $fn->{NAME};
my $uname = uc $name;
my $tn = mapTypeName($fn->{RETURN_TYPE});
$res.="
static $tn dcom_proxy_$interface->{NAME}_$name(struct $interface->{NAME} *d, TALLOC_CTX *mem_ctx" . Parse::Pidl::Samba4::COM::Header::GetArgumentProtoList($fn) . ")
{
struct dcerpc_pipe *p;
NTSTATUS status = dcom_get_pipe(d, &p);
struct $name r;
struct rpc_request *req;
if (NT_STATUS_IS_ERR(status)) {
return status;
}
ZERO_STRUCT(r.in.ORPCthis);
r.in.ORPCthis.version.MajorVersion = COM_MAJOR_VERSION;
r.in.ORPCthis.version.MinorVersion = COM_MINOR_VERSION;
";
# Put arguments into r
foreach my $a (@{$fn->{ELEMENTS}}) {
next unless (has_property($a, "in"));
if (Parse::Pidl::Typelist::typeIs($a->{TYPE}, "INTERFACE")) {
$res .="\tNDR_CHECK(dcom_OBJREF_from_IUnknown(mem_ctx, &r.in.$a->{NAME}.obj, $a->{NAME}));\n";
} else {
$res .= "\tr.in.$a->{NAME} = $a->{NAME};\n";
}
}
$res .="
if (p->conn->flags & DCERPC_DEBUG_PRINT_IN) {
NDR_PRINT_IN_DEBUG($name, &r);
}
status = dcerpc_ndr_request(p, &d->ipid, &ndr_table_$interface->{NAME}, NDR_$uname, mem_ctx, &r);
if (NT_STATUS_IS_OK(status) && (p->conn->flags & DCERPC_DEBUG_PRINT_OUT)) {
NDR_PRINT_OUT_DEBUG($name, r);
}
";
# Put r info back into arguments
foreach my $a (@{$fn->{ELEMENTS}}) {
next unless (has_property($a, "out"));
if (Parse::Pidl::Typelist::typeIs($a->{TYPE}, "INTERFACE")) {
$res .="\tNDR_CHECK(dcom_IUnknown_from_OBJREF(d->ctx, &$a->{NAME}, r.out.$a->{NAME}.obj));\n";
} else {
$res .= "\t*$a->{NAME} = r.out.$a->{NAME};\n";
}
}
if ($fn->{RETURN_TYPE} eq "NTSTATUS") {
$res .= "\tif (NT_STATUS_IS_OK(status)) status = r.out.result;\n";
}
$res .=
"
return r.out.result;
}\n\n";
}
#####################################################################
# parse the interface definitions
sub ParseInterface($)
{
my($interface) = shift;
my($data) = $interface->{DATA};
$res = "/* DCOM proxy for $interface->{NAME} generated by pidl */\n\n";
foreach my $d (@{$data}) {
($d->{TYPE} eq "FUNCTION") &&
ParseFunction($interface, $d);
}
ParseRegFunc($interface);
}
sub RegistrationFunction($$)
{
my $idl = shift;
my $basename = shift;
my $res = "\n\nNTSTATUS dcom_$basename\_init(void)\n";
$res .= "{\n";
$res .="\tNTSTATUS status = NT_STATUS_OK;\n";
foreach my $interface (@{$idl}) {
next if $interface->{TYPE} ne "INTERFACE";
next if not has_property($interface, "object");
my $data = $interface->{DATA};
my $count = 0;
foreach my $d (@{$data}) {
if ($d->{TYPE} eq "FUNCTION") { $count++; }
}
next if ($count == 0);
$res .= "\tstatus = dcom_$interface->{NAME}_init();\n";
$res .= "\tif (NT_STATUS_IS_ERR(status)) {\n";
$res .= "\t\treturn status;\n";
$res .= "\t}\n\n";
}
$res .= "\treturn status;\n";
$res .= "}\n\n";
return $res;
}
sub Parse($$)
{
my ($pidl,$comh_filename) = @_;
my $res = "";
my $has_obj = 0;
$res .= "#include \"includes.h\"\n" .
"#include \"lib/com/dcom/dcom.h\"\n" .
"#include \"$comh_filename\"\n" .
"#include \"librpc/rpc/dcerpc.h\"\n";
foreach (@{$pidl}) {
next if ($_->{TYPE} ne "INTERFACE");
next if has_property($_, "local");
next unless has_property($_, "object");
$res .= ParseInterface($_);
$has_obj = 1;
}
return $res if ($has_obj);
return undef;
}
1;
|
