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|
###################################################
# Samba3 client generator for IDL structures
# on top of Samba4 style NDR functions
# Copyright jelmer@samba.org 2005-2006
# released under the GNU GPL
package Parse::Pidl::Samba3::ClientNDR;
use Exporter;
@ISA = qw(Exporter);
@EXPORT_OK = qw(GenerateFunctionInEnv ParseFunction $res $res_hdr);
use strict;
use Parse::Pidl qw(fatal warning);
use Parse::Pidl::Typelist qw(hasType getType mapTypeName scalar_is_reference);
use Parse::Pidl::Util qw(has_property is_constant ParseExpr);
use Parse::Pidl::NDR qw(GetPrevLevel GetNextLevel ContainsDeferred);
use Parse::Pidl::Samba4 qw(DeclLong);
use vars qw($VERSION);
$VERSION = '0.01';
sub indent($) { my ($self) = @_; $self->{tabs}.="\t"; }
sub deindent($) { my ($self) = @_; $self->{tabs} = substr($self->{tabs}, 1); }
sub pidl($$) { my ($self,$txt) = @_; $self->{res} .= "$self->{tabs}$txt\n"; }
sub pidl_hdr($$) { my ($self, $txt) = @_; $self->{res_hdr} .= "$txt\n"; }
sub fn_declare($$) { my ($self,$n) = @_; $self->pidl($n); $self->pidl_hdr("$n;"); }
sub new($)
{
my ($class) = shift;
my $self = { res => "", res_hdr => "", tabs => "" };
bless($self, $class);
}
sub GenerateFunctionInEnv($)
{
my $fn = shift;
my %env;
foreach my $e (@{$fn->{ELEMENTS}}) {
if (grep (/in/, @{$e->{DIRECTION}})) {
$env{$e->{NAME}} = "r.in.$e->{NAME}";
}
}
return \%env;
}
sub ParseFunction($$$)
{
my ($self, $uif, $fn) = @_;
my $inargs = "";
my $defargs = "";
my $ufn = "DCERPC_".uc($fn->{NAME});
foreach (@{$fn->{ELEMENTS}}) {
$defargs .= ", " . DeclLong($_);
}
$self->fn_declare("NTSTATUS rpccli_$fn->{NAME}(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx$defargs)");
$self->pidl("{");
$self->indent;
$self->pidl("struct $fn->{NAME} r;");
$self->pidl("NTSTATUS status;");
$self->pidl("");
$self->pidl("/* In parameters */");
foreach (@{$fn->{ELEMENTS}}) {
if (grep(/in/, @{$_->{DIRECTION}})) {
$self->pidl("r.in.$_->{NAME} = $_->{NAME};");
}
}
$self->pidl("");
$self->pidl("if (DEBUGLEVEL >= 10)");
$self->pidl("\tNDR_PRINT_IN_DEBUG($fn->{NAME}, &r);");
$self->pidl("");
$self->pidl("status = cli_do_rpc_ndr(cli, mem_ctx, PI_$uif, $ufn, &r, (ndr_pull_flags_fn_t)ndr_pull_$fn->{NAME}, (ndr_push_flags_fn_t)ndr_push_$fn->{NAME});");
$self->pidl("");
$self->pidl("if (!NT_STATUS_IS_OK(status)) {");
$self->indent;
$self->pidl("return status;");
$self->deindent;
$self->pidl("}");
$self->pidl("");
$self->pidl("if (DEBUGLEVEL >= 10)");
$self->pidl("\tNDR_PRINT_OUT_DEBUG($fn->{NAME}, &r);");
$self->pidl("");
$self->pidl("if (NT_STATUS_IS_ERR(status)) {");
$self->pidl("\treturn status;");
$self->pidl("}");
$self->pidl("");
$self->pidl("/* Return variables */");
foreach my $e (@{$fn->{ELEMENTS}}) {
next unless (grep(/out/, @{$e->{DIRECTION}}));
fatal($e, "[out] argument is not a pointer or array") if ($e->{LEVELS}[0]->{TYPE} ne "POINTER" and $e->{LEVELS}[0]->{TYPE} ne "ARRAY");
if ( ($e->{LEVELS}[0]->{TYPE} eq "POINTER") and
($e->{LEVELS}[0]->{POINTER_TYPE} ne "ref") ) {
$self->pidl("if ( $e->{NAME} ) {");
$self->indent;
}
if ($e->{LEVELS}[0]->{TYPE} eq "ARRAY") {
# This is a call to GenerateFunctionInEnv intentionally.
# Since the data is being copied into a user-provided data
# structure, the user should be able to know the size beforehand
# to allocate a structure of the right size.
my $env = GenerateFunctionInEnv($fn);
my $size_is = ParseExpr($e->{LEVELS}[0]->{SIZE_IS}, $env, $e);
$self->pidl("memcpy($e->{NAME}, r.out.$e->{NAME}, $size_is);");
} else {
$self->pidl("*$e->{NAME} = *r.out.$e->{NAME};");
}
if ( ($e->{LEVELS}[0]->{TYPE} eq "POINTER") and
($e->{LEVELS}[0]->{POINTER_TYPE} ne "ref") ) {
$self->deindent;
$self->pidl("}");
}
}
$self->pidl("");
$self->pidl("/* Return result */");
if (not $fn->{RETURN_TYPE}) {
$self->pidl("return NT_STATUS_OK;");
} elsif ($fn->{RETURN_TYPE} eq "NTSTATUS") {
$self->pidl("return r.out.result;");
} elsif ($fn->{RETURN_TYPE} eq "WERROR") {
$self->pidl("return werror_to_ntstatus(r.out.result);");
} else {
warning($fn->{ORIGINAL}, "Unable to convert $fn->{RETURN_TYPE} to NTSTATUS");
$self->pidl("return NT_STATUS_OK;");
}
$self->deindent;
$self->pidl("}");
$self->pidl("");
}
sub ParseInterface($$)
{
my ($self, $if) = @_;
my $uif = uc($if->{NAME});
$self->pidl_hdr("#ifndef __CLI_$uif\__");
$self->pidl_hdr("#define __CLI_$uif\__");
$self->ParseFunction(uc($if->{NAME}), $_) foreach (@{$if->{FUNCTIONS}});
$self->pidl_hdr("#endif /* __CLI_$uif\__ */");
}
sub Parse($$$$)
{
my($self,$ndr,$header,$ndr_header) = @_;
$self->pidl("/*");
$self->pidl(" * Unix SMB/CIFS implementation.");
$self->pidl(" * client auto-generated by pidl. DO NOT MODIFY!");
$self->pidl(" */");
$self->pidl("");
$self->pidl("#include \"includes.h\"");
$self->pidl("#include \"$header\"");
$self->pidl_hdr("#include \"$ndr_header\"");
$self->pidl("");
foreach (@$ndr) {
$self->ParseInterface($_) if ($_->{TYPE} eq "INTERFACE");
}
return ($self->{res}, $self->{res_hdr});
}
1;
|
