r8910: An initial parser to parse structures in smb_interfaces.h. This will be

used to generate ejs objects for making raw smb calls.

Running 'make smb_interfaces' should run the build_smb_interfaces.pl
script which at the moment only displays a dump of the parsed data.
Const is also not working right now but it's bedtime.
(This used to be commit 1be5f55d7f6926bf7266ea72623990f0bb558c94)

2 files changed, 1415 insertions, 0 deletions

diff --git a/source4/build/pidl/smb_interfaces.pm b/source4/build/pidl/smb_interfaces.pm
new file mode 100644
index 0000000000..de8b704b17
--- /dev/null
+++ b/source4/build/pidl/smb_interfaces.pm
@@ -0,0 +1,1200 @@
+####################################################################
+#
+#    This file was generated using Parse::Yapp version 1.05.
+#
+#        Don't edit this file, use source file instead.
+#
+#             ANY CHANGE MADE HERE WILL BE LOST !
+#
+####################################################################
+package smb_interfaces;
+use vars qw ( @ISA );
+use strict;
+
+@ISA= qw ( Parse::Yapp::Driver );
+#Included Parse/Yapp/Driver.pm file----------------------------------------
+{
+#
+# Module Parse::Yapp::Driver
+#
+# This module is part of the Parse::Yapp package available on your
+# nearest CPAN
+#
+# Any use of this module in a standalone parser make the included
+# text under the same copyright as the Parse::Yapp module itself.
+#
+# This notice should remain unchanged.
+#
+# (c) Copyright 1998-2001 Francois Desarmenien, all rights reserved.
+# (see the pod text in Parse::Yapp module for use and distribution rights)
+#
+
+package Parse::Yapp::Driver;
+
+require 5.004;
+
+use strict;
+
+use vars qw ( $VERSION $COMPATIBLE $FILENAME );
+
+$VERSION = '1.05';
+$COMPATIBLE = '0.07';
+$FILENAME=__FILE__;
+
+use Carp;
+
+#Known parameters, all starting with YY (leading YY will be discarded)
+my(%params)=(YYLEX => 'CODE', 'YYERROR' => 'CODE', YYVERSION => '',
+			 YYRULES => 'ARRAY', YYSTATES => 'ARRAY', YYDEBUG => '');
+#Mandatory parameters
+my(@params)=('LEX','RULES','STATES');
+
+sub new {
+    my($class)=shift;
+	my($errst,$nberr,$token,$value,$check,$dotpos);
+    my($self)={ ERROR => \&_Error,
+				ERRST => \$errst,
+                NBERR => \$nberr,
+				TOKEN => \$token,
+				VALUE => \$value,
+				DOTPOS => \$dotpos,
+				STACK => [],
+				DEBUG => 0,
+				CHECK => \$check };
+
+	_CheckParams( [], \%params, \@_, $self );
+
+		exists($$self{VERSION})
+	and	$$self{VERSION} < $COMPATIBLE
+	and	croak "Yapp driver version $VERSION ".
+			  "incompatible with version $$self{VERSION}:\n".
+			  "Please recompile parser module.";
+
+        ref($class)
+    and $class=ref($class);
+
+    bless($self,$class);
+}
+
+sub YYParse {
+    my($self)=shift;
+    my($retval);
+
+	_CheckParams( \@params, \%params, \@_, $self );
+
+	if($$self{DEBUG}) {
+		_DBLoad();
+		$retval = eval '$self->_DBParse()';#Do not create stab entry on compile
+        $@ and die $@;
+	}
+	else {
+		$retval = $self->_Parse();
+	}
+    $retval
+}
+
+sub YYData {
+	my($self)=shift;
+
+		exists($$self{USER})
+	or	$$self{USER}={};
+
+	$$self{USER};
+	
+}
+
+sub YYErrok {
+	my($self)=shift;
+
+	${$$self{ERRST}}=0;
+    undef;
+}
+
+sub YYNberr {
+	my($self)=shift;
+
+	${$$self{NBERR}};
+}
+
+sub YYRecovering {
+	my($self)=shift;
+
+	${$$self{ERRST}} != 0;
+}
+
+sub YYAbort {
+	my($self)=shift;
+
+	${$$self{CHECK}}='ABORT';
+    undef;
+}
+
+sub YYAccept {
+	my($self)=shift;
+
+	${$$self{CHECK}}='ACCEPT';
+    undef;
+}
+
+sub YYError {
+	my($self)=shift;
+
+	${$$self{CHECK}}='ERROR';
+    undef;
+}
+
+sub YYSemval {
+	my($self)=shift;
+	my($index)= $_[0] - ${$$self{DOTPOS}} - 1;
+
+		$index < 0
+	and	-$index <= @{$$self{STACK}}
+	and	return $$self{STACK}[$index][1];
+
+	undef;	#Invalid index
+}
+
+sub YYCurtok {
+	my($self)=shift;
+
+        @_
+    and ${$$self{TOKEN}}=$_[0];
+    ${$$self{TOKEN}};
+}
+
+sub YYCurval {
+	my($self)=shift;
+
+        @_
+    and ${$$self{VALUE}}=$_[0];
+    ${$$self{VALUE}};
+}
+
+sub YYExpect {
+    my($self)=shift;
+
+    keys %{$self->{STATES}[$self->{STACK}[-1][0]]{ACTIONS}}
+}
+
+sub YYLexer {
+    my($self)=shift;
+
+	$$self{LEX};
+}
+
+
+#################
+# Private stuff #
+#################
+
+
+sub _CheckParams {
+	my($mandatory,$checklist,$inarray,$outhash)=@_;
+	my($prm,$value);
+	my($prmlst)={};
+
+	while(($prm,$value)=splice(@$inarray,0,2)) {
+        $prm=uc($prm);
+			exists($$checklist{$prm})
+		or	croak("Unknow parameter '$prm'");
+			ref($value) eq $$checklist{$prm}
+		or	croak("Invalid value for parameter '$prm'");
+        $prm=unpack('@2A*',$prm);
+		$$outhash{$prm}=$value;
+	}
+	for (@$mandatory) {
+			exists($$outhash{$_})
+		or	croak("Missing mandatory parameter '".lc($_)."'");
+	}
+}
+
+sub _Error {
+	print "Parse error.\n";
+}
+
+sub _DBLoad {
+	{
+		no strict 'refs';
+
+			exists(${__PACKAGE__.'::'}{_DBParse})#Already loaded ?
+		and	return;
+	}
+	my($fname)=__FILE__;
+	my(@drv);
+	open(DRV,"<$fname") or die "Report this as a BUG: Cannot open $fname";
+	while(<DRV>) {
+                	/^\s*sub\s+_Parse\s*{\s*$/ .. /^\s*}\s*#\s*_Parse\s*$/
+        	and     do {
+                	s/^#DBG>//;
+                	push(@drv,$_);
+        	}
+	}
+	close(DRV);
+
+	$drv[0]=~s/_P/_DBP/;
+	eval join('',@drv);
+}
+
+#Note that for loading debugging version of the driver,
+#this file will be parsed from 'sub _Parse' up to '}#_Parse' inclusive.
+#So, DO NOT remove comment at end of sub !!!
+sub _Parse {
+    my($self)=shift;
+
+	my($rules,$states,$lex,$error)
+     = @$self{ 'RULES', 'STATES', 'LEX', 'ERROR' };
+	my($errstatus,$nberror,$token,$value,$stack,$check,$dotpos)
+     = @$self{ 'ERRST', 'NBERR', 'TOKEN', 'VALUE', 'STACK', 'CHECK', 'DOTPOS' };
+
+#DBG>	my($debug)=$$self{DEBUG};
+#DBG>	my($dbgerror)=0;
+
+#DBG>	my($ShowCurToken) = sub {
+#DBG>		my($tok)='>';
+#DBG>		for (split('',$$token)) {
+#DBG>			$tok.=		(ord($_) < 32 or ord($_) > 126)
+#DBG>					?	sprintf('<%02X>',ord($_))
+#DBG>					:	$_;
+#DBG>		}
+#DBG>		$tok.='<';
+#DBG>	};
+
+	$$errstatus=0;
+	$$nberror=0;
+	($$token,$$value)=(undef,undef);
+	@$stack=( [ 0, undef ] );
+	$$check='';
+
+    while(1) {
+        my($actions,$act,$stateno);
+
+        $stateno=$$stack[-1][0];
+        $actions=$$states[$stateno];
+
+#DBG>	print STDERR ('-' x 40),"\n";
+#DBG>		$debug & 0x2
+#DBG>	and	print STDERR "In state $stateno:\n";
+#DBG>		$debug & 0x08
+#DBG>	and	print STDERR "Stack:[".
+#DBG>					 join(',',map { $$_[0] } @$stack).
+#DBG>					 "]\n";
+
+
+        if  (exists($$actions{ACTIONS})) {
+
+				defined($$token)
+            or	do {
+				($$token,$$value)=&$lex($self);
+#DBG>				$debug & 0x01
+#DBG>			and	print STDERR "Need token. Got ".&$ShowCurToken."\n";
+			};
+
+            $act=   exists($$actions{ACTIONS}{$$token})
+                    ?   $$actions{ACTIONS}{$$token}
+                    :   exists($$actions{DEFAULT})
+                        ?   $$actions{DEFAULT}
+                        :   undef;
+        }
+        else {
+            $act=$$actions{DEFAULT};
+#DBG>			$debug & 0x01
+#DBG>		and	print STDERR "Don't need token.\n";
+        }
+
+            defined($act)
+        and do {
+
+                $act > 0
+            and do {        #shift
+
+#DBG>				$debug & 0x04
+#DBG>			and	print STDERR "Shift and go to state $act.\n";
+
+					$$errstatus
+				and	do {
+					--$$errstatus;
+
+#DBG>					$debug & 0x10
+#DBG>				and	$dbgerror
+#DBG>				and	$$errstatus == 0
+#DBG>				and	do {
+#DBG>					print STDERR "**End of Error recovery.\n";
+#DBG>					$dbgerror=0;
+#DBG>				};
+				};
+
+
+                push(@$stack,[ $act, $$value ]);
+
+					$$token ne ''	#Don't eat the eof
+				and	$$token=$$value=undef;
+                next;
+            };
+
+            #reduce
+            my($lhs,$len,$code,@sempar,$semval);
+            ($lhs,$len,$code)=@{$$rules[-$act]};
+
+#DBG>			$debug & 0x04
+#DBG>		and	$act
+#DBG>		and	print STDERR "Reduce using rule ".-$act." ($lhs,$len): ";
+
+                $act
+            or  $self->YYAccept();
+
+            $$dotpos=$len;
+
+                unpack('A1',$lhs) eq '@'    #In line rule
+            and do {
+                    $lhs =~ /^\@[0-9]+\-([0-9]+)$/
+                or  die "In line rule name '$lhs' ill formed: ".
+                        "report it as a BUG.\n";
+                $$dotpos = $1;
+            };
+
+            @sempar =       $$dotpos
+                        ?   map { $$_[1] } @$stack[ -$$dotpos .. -1 ]
+                        :   ();
+
+            $semval = $code ? &$code( $self, @sempar )
+                            : @sempar ? $sempar[0] : undef;
+
+            splice(@$stack,-$len,$len);
+
+                $$check eq 'ACCEPT'
+            and do {
+
+#DBG>			$debug & 0x04
+#DBG>		and	print STDERR "Accept.\n";
+
+				return($semval);
+			};
+
+                $$check eq 'ABORT'
+            and	do {
+
+#DBG>			$debug & 0x04
+#DBG>		and	print STDERR "Abort.\n";
+
+				return(undef);
+
+			};
+
+#DBG>			$debug & 0x04
+#DBG>		and	print STDERR "Back to state $$stack[-1][0], then ";
+
+                $$check eq 'ERROR'
+            or  do {
+#DBG>				$debug & 0x04
+#DBG>			and	print STDERR 
+#DBG>				    "go to state $$states[$$stack[-1][0]]{GOTOS}{$lhs}.\n";
+
+#DBG>				$debug & 0x10
+#DBG>			and	$dbgerror
+#DBG>			and	$$errstatus == 0
+#DBG>			and	do {
+#DBG>				print STDERR "**End of Error recovery.\n";
+#DBG>				$dbgerror=0;
+#DBG>			};
+
+			    push(@$stack,
+                     [ $$states[$$stack[-1][0]]{GOTOS}{$lhs}, $semval ]);
+                $$check='';
+                next;
+            };
+
+#DBG>			$debug & 0x04
+#DBG>		and	print STDERR "Forced Error recovery.\n";
+
+            $$check='';
+
+        };
+
+        #Error
+            $$errstatus
+        or   do {
+
+            $$errstatus = 1;
+            &$error($self);
+                $$errstatus # if 0, then YYErrok has been called
+            or  next;       # so continue parsing
+
+#DBG>			$debug & 0x10
+#DBG>		and	do {
+#DBG>			print STDERR "**Entering Error recovery.\n";
+#DBG>			++$dbgerror;
+#DBG>		};
+
+            ++$$nberror;
+
+        };
+
+			$$errstatus == 3	#The next token is not valid: discard it
+		and	do {
+				$$token eq ''	# End of input: no hope
+			and	do {
+#DBG>				$debug & 0x10
+#DBG>			and	print STDERR "**At eof: aborting.\n";
+				return(undef);
+			};
+
+#DBG>			$debug & 0x10
+#DBG>		and	print STDERR "**Dicard invalid token ".&$ShowCurToken.".\n";
+
+			$$token=$$value=undef;
+		};
+
+        $$errstatus=3;
+
+		while(	  @$stack
+			  and (		not exists($$states[$$stack[-1][0]]{ACTIONS})
+			        or  not exists($$states[$$stack[-1][0]]{ACTIONS}{error})
+					or	$$states[$$stack[-1][0]]{ACTIONS}{error} <= 0)) {
+
+#DBG>			$debug & 0x10
+#DBG>		and	print STDERR "**Pop state $$stack[-1][0].\n";
+
+			pop(@$stack);
+		}
+
+			@$stack
+		or	do {
+
+#DBG>			$debug & 0x10
+#DBG>		and	print STDERR "**No state left on stack: aborting.\n";
+
+			return(undef);
+		};
+
+		#shift the error token
+
+#DBG>			$debug & 0x10
+#DBG>		and	print STDERR "**Shift \$error token and go to state ".
+#DBG>						 $$states[$$stack[-1][0]]{ACTIONS}{error}.
+#DBG>						 ".\n";
+
+		push(@$stack, [ $$states[$$stack[-1][0]]{ACTIONS}{error}, undef ]);
+
+    }
+
+    #never reached
+	croak("Error in driver logic. Please, report it as a BUG");
+
+}#_Parse
+#DO NOT remove comment
+
+1;
+
+}
+#End of include--------------------------------------------------
+
+
+
+
+sub new {
+        my($class)=shift;
+        ref($class)
+    and $class=ref($class);
+
+    my($self)=$class->SUPER::new( yyversion => '1.05',
+                                  yystates =>
+[
+	{#State 0
+		ACTIONS => {
+			'UNION' => 5,
+			'ENUM' => 1,
+			'TYPEDEF' => 7,
+			'STRUCT' => 2
+		},
+		GOTOS => {
+			'struct' => 6,
+			'enum' => 9,
+			'typedef' => 8,
+			'union' => 10,
+			'definitions' => 3,
+			'definition' => 4
+		}
+	},
+	{#State 1
+		ACTIONS => {
+			'IDENTIFIER' => 11
+		}
+	},
+	{#State 2
+		ACTIONS => {
+			'IDENTIFIER' => 12
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 13
+		}
+	},
+	{#State 3
+		ACTIONS => {
+			'' => 14,
+			'UNION' => 5,
+			'ENUM' => 1,
+			'TYPEDEF' => 7,
+			'STRUCT' => 2
+		},
+		GOTOS => {
+			'struct' => 6,
+			'typedef' => 8,
+			'enum' => 9,
+			'union' => 10,
+			'definition' => 15
+		}
+	},
+	{#State 4
+		DEFAULT => -1
+	},
+	{#State 5
+		ACTIONS => {
+			'IDENTIFIER' => 12
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 16
+		}
+	},
+	{#State 6
+		DEFAULT => -3
+	},
+	{#State 7
+		ACTIONS => {
+			'STRUCT' => 17
+		}
+	},
+	{#State 8
+		DEFAULT => -5
+	},
+	{#State 9
+		DEFAULT => -6
+	},
+	{#State 10
+		DEFAULT => -4
+	},
+	{#State 11
+		ACTIONS => {
+			"{" => 18
+		}
+	},
+	{#State 12
+		DEFAULT => -31
+	},
+	{#State 13
+		ACTIONS => {
+			"{" => 19
+		}
+	},
+	{#State 14
+		DEFAULT => 0
+	},
+	{#State 15
+		DEFAULT => -2
+	},
+	{#State 16
+		ACTIONS => {
+			"{" => 20
+		}
+	},
+	{#State 17
+		ACTIONS => {
+			"{" => 21
+		}
+	},
+	{#State 18
+		ACTIONS => {
+			'IDENTIFIER' => 22
+		},
+		GOTOS => {
+			'enum_identifiers' => 23,
+			'enum_identifier' => 24
+		}
+	},
+	{#State 19
+		DEFAULT => -15,
+		GOTOS => {
+			'elements' => 25
+		}
+	},
+	{#State 20
+		DEFAULT => -15,
+		GOTOS => {
+			'elements' => 26
+		}
+	},
+	{#State 21
+		DEFAULT => -15,
+		GOTOS => {
+			'elements' => 27
+		}
+	},
+	{#State 22
+		ACTIONS => {
+			"=" => 28
+		},
+		DEFAULT => -13
+	},
+	{#State 23
+		ACTIONS => {
+			"}" => 29,
+			"," => 30
+		}
+	},
+	{#State 24
+		DEFAULT => -11
+	},
+	{#State 25
+		ACTIONS => {
+			"}" => 31,
+			'UNION' => 36,
+			'IDENTIFIER' => 33,
+			'ENUM' => 32,
+			'STRUCT' => 34
+		},
+		GOTOS => {
+			'struct' => 37,
+			'type' => 38,
+			'union' => 39,
+			'element' => 35
+		}
+	},
+	{#State 26
+		ACTIONS => {
+			"}" => 40,
+			'UNION' => 36,
+			'IDENTIFIER' => 33,
+			'ENUM' => 32,
+			'STRUCT' => 34
+		},
+		GOTOS => {
+			'struct' => 37,
+			'type' => 38,
+			'union' => 39,
+			'element' => 35
+		}
+	},
+	{#State 27
+		ACTIONS => {
+			"}" => 41,
+			'UNION' => 36,
+			'IDENTIFIER' => 33,
+			'ENUM' => 32,
+			'STRUCT' => 34
+		},
+		GOTOS => {
+			'struct' => 37,
+			'type' => 38,
+			'union' => 39,
+			'element' => 35
+		}
+	},
+	{#State 28
+		ACTIONS => {
+			'IDENTIFIER' => 42
+		}
+	},
+	{#State 29
+		ACTIONS => {
+			";" => 43
+		}
+	},
+	{#State 30
+		ACTIONS => {
+			'IDENTIFIER' => 22
+		},
+		GOTOS => {
+			'enum_identifier' => 44
+		}
+	},
+	{#State 31
+		DEFAULT => -27,
+		GOTOS => {
+			'pointers' => 45
+		}
+	},
+	{#State 32
+		ACTIONS => {
+			'IDENTIFIER' => 46
+		}
+	},
+	{#State 33
+		DEFAULT => -25
+	},
+	{#State 34
+		ACTIONS => {
+			'IDENTIFIER' => 47
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 13
+		}
+	},
+	{#State 35
+		DEFAULT => -16
+	},
+	{#State 36
+		ACTIONS => {
+			'IDENTIFIER' => 48
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 16
+		}
+	},
+	{#State 37
+		DEFAULT => -18
+	},
+	{#State 38
+		DEFAULT => -27,
+		GOTOS => {
+			'pointers' => 49
+		}
+	},
+	{#State 39
+		DEFAULT => -19
+	},
+	{#State 40
+		DEFAULT => -27,
+		GOTOS => {
+			'pointers' => 50
+		}
+	},
+	{#State 41
+		ACTIONS => {
+			'IDENTIFIER' => 12
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 51
+		}
+	},
+	{#State 42
+		DEFAULT => -14
+	},
+	{#State 43
+		DEFAULT => -10
+	},
+	{#State 44
+		DEFAULT => -12
+	},
+	{#State 45
+		ACTIONS => {
+			'IDENTIFIER' => 12,
+			"*" => 53
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 52,
+			'optional_identifiers' => 54
+		}
+	},
+	{#State 46
+		DEFAULT => -26
+	},
+	{#State 47
+		ACTIONS => {
+			"{" => -31
+		},
+		DEFAULT => -27,
+		GOTOS => {
+			'pointers' => 55
+		}
+	},
+	{#State 48
+		ACTIONS => {
+			"{" => -31
+		},
+		DEFAULT => -27,
+		GOTOS => {
+			'pointers' => 56
+		}
+	},
+	{#State 49
+		ACTIONS => {
+			'IDENTIFIER' => 57,
+			"*" => 53
+		}
+	},
+	{#State 50
+		ACTIONS => {
+			'IDENTIFIER' => 12,
+			"*" => 53
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 58
+		}
+	},
+	{#State 51
+		ACTIONS => {
+			";" => 59
+		}
+	},
+	{#State 52
+		DEFAULT => -29
+	},
+	{#State 53
+		DEFAULT => -28
+	},
+	{#State 54
+		ACTIONS => {
+			";" => 60,
+			"," => 61
+		}
+	},
+	{#State 55
+		ACTIONS => {
+			'IDENTIFIER' => 62,
+			"*" => 53
+		}
+	},
+	{#State 56
+		ACTIONS => {
+			'IDENTIFIER' => 63,
+			"*" => 53
+		}
+	},
+	{#State 57
+		ACTIONS => {
+			"[" => 65
+		},
+		DEFAULT => -23,
+		GOTOS => {
+			'array' => 64
+		}
+	},
+	{#State 58
+		ACTIONS => {
+			";" => 66
+		}
+	},
+	{#State 59
+		DEFAULT => -9
+	},
+	{#State 60
+		DEFAULT => -7
+	},
+	{#State 61
+		ACTIONS => {
+			'IDENTIFIER' => 12
+		},
+		DEFAULT => -32,
+		GOTOS => {
+			'optional_identifier' => 67
+		}
+	},
+	{#State 62
+		ACTIONS => {
+			";" => 68
+		}
+	},
+	{#State 63
+		ACTIONS => {
+			";" => 69
+		}
+	},
+	{#State 64
+		ACTIONS => {
+			";" => 70
+		}
+	},
+	{#State 65
+		ACTIONS => {
+			'CONSTANT' => 71
+		}
+	},
+	{#State 66
+		DEFAULT => -8
+	},
+	{#State 67
+		DEFAULT => -30
+	},
+	{#State 68
+		DEFAULT => -20
+	},
+	{#State 69
+		DEFAULT => -21
+	},
+	{#State 70
+		DEFAULT => -22
+	},
+	{#State 71
+		ACTIONS => {
+			"]" => 72
+		}
+	},
+	{#State 72
+		DEFAULT => -24
+	}
+],
+                                  yyrules  =>
+[
+	[#Rule 0
+		 '$start', 2, undef
+	],
+	[#Rule 1
+		 'definitions', 1,
+sub
+#line 14 "build/pidl/smb_interfaces.yp"
+{ [$_[1]] }
+	],
+	[#Rule 2
+		 'definitions', 2,
+sub
+#line 15 "build/pidl/smb_interfaces.yp"
+{ push(@{$_[1]}, $_[2]); $_[1] }
+	],
+	[#Rule 3
+		 'definition', 1, undef
+	],
+	[#Rule 4
+		 'definition', 1, undef
+	],
+	[#Rule 5
+		 'definition', 1, undef
+	],
+	[#Rule 6
+		 'definition', 1, undef
+	],
+	[#Rule 7
+		 'struct', 8,
+sub
+#line 26 "build/pidl/smb_interfaces.yp"
+{
+		my $name = defined($_[2]) ? $_[2] : $_[7];
+		{
+			"NAME" => $name,
+			"TYPE" => "STRUCT",
+			"DATA" => $_[4],
+		}
+	}
+	],
+	[#Rule 8
+		 'union', 8,
+sub
+#line 38 "build/pidl/smb_interfaces.yp"
+{
+		my $name = defined($_[2]) ? $_[2] : $_[7];
+		{
+			"NAME" => $name,
+			"TYPE" => "UNION",
+			"DATA" => $_[4],
+		}
+	}
+	],
+	[#Rule 9
+		 'typedef', 7, undef
+	],
+	[#Rule 10
+		 'enum', 6, undef
+	],
+	[#Rule 11
+		 'enum_identifiers', 1, undef
+	],
+	[#Rule 12
+		 'enum_identifiers', 3, undef
+	],
+	[#Rule 13
+		 'enum_identifier', 1, undef
+	],
+	[#Rule 14
+		 'enum_identifier', 3, undef
+	],
+	[#Rule 15
+		 'elements', 0, undef
+	],
+	[#Rule 16
+		 'elements', 2,
+sub
+#line 65 "build/pidl/smb_interfaces.yp"
+{ push(@{$_[1]}, $_[2]); $_[1] }
+	],
+	[#Rule 17
+		 'element', 0, undef
+	],
+	[#Rule 18
+		 'element', 1, undef
+	],
+	[#Rule 19
+		 'element', 1, undef
+	],
+	[#Rule 20
+		 'element', 5, undef
+	],
+	[#Rule 21
+		 'element', 5, undef
+	],
+	[#Rule 22
+		 'element', 5,
+sub
+#line 74 "build/pidl/smb_interfaces.yp"
+{{
+			   "NAME" => $_[3],
+			   "TYPE" => $_[1],
+			   "POINTERS" => $_[2],
+              }}
+	],
+	[#Rule 23
+		 'array', 0, undef
+	],
+	[#Rule 24
+		 'array', 3, undef
+	],
+	[#Rule 25
+		 'type', 1, undef
+	],
+	[#Rule 26
+		 'type', 2, undef
+	],
+	[#Rule 27
+		 'pointers', 0, undef
+	],
+	[#Rule 28
+		 'pointers', 2,
+sub
+#line 91 "build/pidl/smb_interfaces.yp"
+{ $_[1]+1 }
+	],
+	[#Rule 29
+		 'optional_identifiers', 1,
+sub
+#line 94 "build/pidl/smb_interfaces.yp"
+{ [$_[1]] }
+	],
+	[#Rule 30
+		 'optional_identifiers', 3,
+sub
+#line 95 "build/pidl/smb_interfaces.yp"
+{ push(@{$_[1]}, $_[3]); $_[1] }
+	],
+	[#Rule 31
+		 'optional_identifier', 1, undef
+	],
+	[#Rule 32
+		 'optional_identifier', 0, undef
+	]
+],
+                                  @_);
+    bless($self,$class);
+}
+
+#line 101 "build/pidl/smb_interfaces.yp"
+
+
+#####################################################################
+# traverse a perl data structure removing any empty arrays or
+# hashes and any hash elements that map to undef
+sub CleanData($)
+{
+    sub CleanData($);
+    my($v) = shift;
+    if (ref($v) eq "ARRAY") {
+	foreach my $i (0 .. $#{$v}) {
+	    CleanData($v->[$i]);
+	    if (ref($v->[$i]) eq "ARRAY" && $#{$v->[$i]}==-1) { 
+		    $v->[$i] = undef; 
+		    next; 
+	    }
+	}
+	# this removes any undefined elements from the array
+	@{$v} = grep { defined $_ } @{$v};
+    } elsif (ref($v) eq "HASH") {
+	foreach my $x (keys %{$v}) {
+	    CleanData($v->{$x});
+	    if (!defined $v->{$x}) { delete($v->{$x}); next; }
+	    if (ref($v->{$x}) eq "ARRAY" && $#{$v->{$x}}==-1) { delete($v->{$x}); next; }
+	}
+    }
+	return $v;
+}
+
+sub _Error {
+    if (exists $_[0]->YYData->{ERRMSG}) {
+		print $_[0]->YYData->{ERRMSG};
+		delete $_[0]->YYData->{ERRMSG};
+		return;
+	};
+	my $line = $_[0]->YYData->{LINE};
+	my $last_token = $_[0]->YYData->{LAST_TOKEN};
+	my $file = $_[0]->YYData->{INPUT_FILENAME};
+	
+	print "$file:$line: Syntax error near '$last_token'\n";
+}
+
+sub _Lexer($)
+{
+	my($parser)=shift;
+
+    $parser->YYData->{INPUT} or return('',undef);
+
+again:
+	$parser->YYData->{INPUT} =~ s/^[ \t]*//;
+
+	for ($parser->YYData->{INPUT}) {
+		if (/^\#/) {
+			if (s/^\# (\d+) \"(.*?)\"( \d+|)//) {
+				$parser->YYData->{LINE} = $1-1;
+				$parser->YYData->{INPUT_FILENAME} = $2;
+				goto again;
+			}
+			if (s/^\#line (\d+) \"(.*?)\"( \d+|)//) {
+				$parser->YYData->{LINE} = $1-1;
+				$parser->YYData->{INPUT_FILENAME} = $2;
+				goto again;
+			}
+			if (s/^(\#.*)$//m) {
+				goto again;
+			}
+		}
+		if (s/^(\n)//) {
+			$parser->YYData->{LINE}++;
+			goto again;
+		}
+		if (s/^\"(.*?)\"//) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			return('TEXT',$1); 
+		}
+		if (s/^(\d+)(\W|$)/$2/) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			return('CONSTANT',$1); 
+		}
+		if (s/^([\w_]+)//) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			if ($1 =~ 
+			    /^(const|typedef|union|struct|enum)$/x) {
+				return uc($1);
+			}
+			return('IDENTIFIER',$1);
+		}
+		if (s/^(.)//s) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			return($1,$1);
+		}
+	}
+}
+
+sub parse($$)
+{
+	my ($self,$filename) = @_;
+
+	my $saved_delim = $/;
+	undef $/;
+	my $cpp = $ENV{CPP};
+	if (! defined $cpp) {
+		$cpp = "cpp"
+	}
+	my $data = `$cpp -D__PIDL__ -xc $filename`;
+	$/ = $saved_delim;
+
+    $self->YYData->{INPUT} = $data;
+    $self->YYData->{LINE} = 0;
+    $self->YYData->{LAST_TOKEN} = "NONE";
+
+	my $idl = $self->YYParse( yylex => \&_Lexer, yyerror => \&_Error );
+
+	return CleanData($idl);
+}
+
+1;
diff --git a/source4/build/pidl/smb_interfaces.yp b/source4/build/pidl/smb_interfaces.yp
new file mode 100644
index 0000000000..704c0522ba
--- /dev/null
+++ b/source4/build/pidl/smb_interfaces.yp
@@ -0,0 +1,215 @@
+########################
+# Parse::Yapp parser for a C header file that contains only structures 
+# or unions.  
+
+# Copyright (C) 2005, Tim Potter <tpot@samba.org> released under the
+# GNU GPL version 2 or later
+
+################
+# grammar
+
+%%
+
+definitions:
+	definition			{ [$_[1]] }
+	| definitions definition	{ push(@{$_[1]}, $_[2]); $_[1] }
+;
+
+definition:
+	struct 
+	| union 
+	| typedef 
+	| enum
+;
+
+struct: STRUCT optional_identifier '{' elements '}' pointers optional_identifiers ';'
+	{
+		my $name = defined($_[2]) ? $_[2] : $_[7];
+		{
+			"NAME" => $name,
+			"TYPE" => "STRUCT",
+			"DATA" => $_[4],
+		}
+	}
+;
+
+union:
+	UNION optional_identifier '{' elements '}' pointers optional_identifier ';'
+	{
+		my $name = defined($_[2]) ? $_[2] : $_[7];
+		{
+			"NAME" => $name,
+			"TYPE" => "UNION",
+			"DATA" => $_[4],
+		}
+	}
+;
+
+typedef:
+	TYPEDEF STRUCT '{' elements '}' optional_identifier ';'
+;
+
+enum:
+	ENUM IDENTIFIER '{' enum_identifiers '}' ';'
+;
+
+enum_identifiers: enum_identifier
+	| enum_identifiers ',' enum_identifier
+;
+
+enum_identifier: IDENTIFIER
+	| IDENTIFIER '=' IDENTIFIER
+;
+
+elements: #empty
+	| elements element { push(@{$_[1]}, $_[2]); $_[1] }
+;
+
+element: 
+	| struct
+	| union
+	| STRUCT IDENTIFIER pointers IDENTIFIER ';'
+	| UNION IDENTIFIER pointers IDENTIFIER ';'
+	| type pointers IDENTIFIER array ';'
+	      {{
+			   "NAME" => $_[3],
+			   "TYPE" => $_[1],
+			   "POINTERS" => $_[2],
+              }}
+;
+
+array: #empty
+	| '[' CONSTANT  ']'
+;
+
+type: IDENTIFIER
+	| ENUM IDENTIFIER
+;
+
+pointers: 
+   #empty { 0 }
+   | pointers '*'  { $_[1]+1 }
+;
+
+optional_identifiers: optional_identifier { [$_[1]] }
+	| optional_identifiers ',' optional_identifier { push(@{$_[1]}, $_[3]); $_[1] }
+;
+
+optional_identifier: IDENTIFIER | #empty { undef }
+;
+
+%%
+
+#####################################################################
+# traverse a perl data structure removing any empty arrays or
+# hashes and any hash elements that map to undef
+sub CleanData($)
+{
+    sub CleanData($);
+    my($v) = shift;
+    if (ref($v) eq "ARRAY") {
+	foreach my $i (0 .. $#{$v}) {
+	    CleanData($v->[$i]);
+	    if (ref($v->[$i]) eq "ARRAY" && $#{$v->[$i]}==-1) { 
+		    $v->[$i] = undef; 
+		    next; 
+	    }
+	}
+	# this removes any undefined elements from the array
+	@{$v} = grep { defined $_ } @{$v};
+    } elsif (ref($v) eq "HASH") {
+	foreach my $x (keys %{$v}) {
+	    CleanData($v->{$x});
+	    if (!defined $v->{$x}) { delete($v->{$x}); next; }
+	    if (ref($v->{$x}) eq "ARRAY" && $#{$v->{$x}}==-1) { delete($v->{$x}); next; }
+	}
+    }
+	return $v;
+}
+
+sub _Error {
+    if (exists $_[0]->YYData->{ERRMSG}) {
+		print $_[0]->YYData->{ERRMSG};
+		delete $_[0]->YYData->{ERRMSG};
+		return;
+	};
+	my $line = $_[0]->YYData->{LINE};
+	my $last_token = $_[0]->YYData->{LAST_TOKEN};
+	my $file = $_[0]->YYData->{INPUT_FILENAME};
+	
+	print "$file:$line: Syntax error near '$last_token'\n";
+}
+
+sub _Lexer($)
+{
+	my($parser)=shift;
+
+    $parser->YYData->{INPUT} or return('',undef);
+
+again:
+	$parser->YYData->{INPUT} =~ s/^[ \t]*//;
+
+	for ($parser->YYData->{INPUT}) {
+		if (/^\#/) {
+			if (s/^\# (\d+) \"(.*?)\"( \d+|)//) {
+				$parser->YYData->{LINE} = $1-1;
+				$parser->YYData->{INPUT_FILENAME} = $2;
+				goto again;
+			}
+			if (s/^\#line (\d+) \"(.*?)\"( \d+|)//) {
+				$parser->YYData->{LINE} = $1-1;
+				$parser->YYData->{INPUT_FILENAME} = $2;
+				goto again;
+			}
+			if (s/^(\#.*)$//m) {
+				goto again;
+			}
+		}
+		if (s/^(\n)//) {
+			$parser->YYData->{LINE}++;
+			goto again;
+		}
+		if (s/^\"(.*?)\"//) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			return('TEXT',$1); 
+		}
+		if (s/^(\d+)(\W|$)/$2/) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			return('CONSTANT',$1); 
+		}
+		if (s/^([\w_]+)//) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			if ($1 =~ 
+			    /^(const|typedef|union|struct|enum)$/x) {
+				return uc($1);
+			}
+			return('IDENTIFIER',$1);
+		}
+		if (s/^(.)//s) {
+			$parser->YYData->{LAST_TOKEN} = $1;
+			return($1,$1);
+		}
+	}
+}
+
+sub parse($$)
+{
+	my ($self,$filename) = @_;
+
+	my $saved_delim = $/;
+	undef $/;
+	my $cpp = $ENV{CPP};
+	if (! defined $cpp) {
+		$cpp = "cpp"
+	}
+	my $data = `$cpp -D__PIDL__ -xc $filename`;
+	$/ = $saved_delim;
+
+    $self->YYData->{INPUT} = $data;
+    $self->YYData->{LINE} = 0;
+    $self->YYData->{LAST_TOKEN} = "NONE";
+
+	my $idl = $self->YYParse( yylex => \&_Lexer, yyerror => \&_Error );
+
+	return CleanData($idl);
+}