-###################################################################
-# setup any special flags for an element or structure
-sub start_flags($)
-{
- my $e = shift;
- my $flags = util::has_property($e, "flag");
- if (defined $flags) {
- pidl "\t{ guint32 _flags_save_$e->{TYPE} = ndr->flags;\n";
- pidl "\tndr->flags |= $flags;\n";
- }
-}
-
-###################################################################
-# end any special flags for an element or structure
-sub end_flags($)
-{
- my $e = shift;
- my $flags = util::has_property($e, "flag");
- if (defined $flags) {
- pidl "\tndr->flags = _flags_save_$e->{TYPE};\n\t}\n";
- }
-}
-
-
-#####################################################################
-# work out the correct alignment for a structure
-sub struct_alignment
-{
- my $s = shift;
-
- my $align = 1;
- for my $e (@{$s->{ELEMENTS}}) {
- my $a = 1;
-
- if (!util::need_wire_pointer($e)
- && defined $structs{$e->{TYPE}}) {
- if ($structs{$e->{TYPE}}->{DATA}->{TYPE} eq "STRUCT") {
- $a = struct_alignment($structs{$e->{TYPE}}->{DATA});
- } elsif ($structs{$e->{TYPE}}->{DATA}->{TYPE} eq "UNION") {
- if (defined $structs{$e->{TYPE}}->{DATA}) {
- $a = union_alignment($structs{$e->{TYPE}}->{DATA});
- }
- }
- } else {
- $a = util::type_align($e);
- }
-
- if ($align < $a) {
- $align = $a;
- }
- }
-
- return $align;
-}
-
-#####################################################################
-# work out the correct alignment for a union
-sub union_alignment
-{
- my $u = shift;
-
- my $align = 1;
-
- foreach my $e (@{$u->{DATA}}) {
- my $a = 1;
-
- if ($e->{TYPE} eq "EMPTY") {
- next;
- }
-
- if (!util::need_wire_pointer($e)
- && defined $structs{$e->{DATA}->{TYPE}}) {
- my $s = $structs{$e->{DATA}->{TYPE}};
- if ($s->{DATA}->{TYPE} eq "STRUCT") {
- $a = struct_alignment($s->{DATA});
- } elsif ($s->{DATA}->{TYPE} eq "UNION") {
- $a = union_alignment($s->{DATA});
- }
- } else {
- $a = util::type_align($e->{DATA});
- }
-
- if ($align < $a) {
- $align = $a;
- }
- }
-
- return $align;
-}
-
-#####################################################################
-# parse an array - pull side
-sub ParseArrayPull($$$)
-{
- my $e = shift;
- my $var_prefix = shift;
- my $ndr_flags = shift;
-
- my $size = find_size_var($e, util::array_size($e), $var_prefix);
- my $alloc_size = $size;
-
- # if this is a conformant array then we use that size to allocate, and make sure
- # we allocate enough to pull the elements
- if (defined $e->{CONFORMANT_SIZE}) {
- $alloc_size = $e->{CONFORMANT_SIZE};
-
- pidl "\tif ($size > $alloc_size) {\n";
- pidl "\t\treturn; // ndr_pull_error(ndr, NDR_ERR_CONFORMANT_SIZE, \"Bad conformant size %u should be %u\", $alloc_size, $size);\n";
- pidl "\t}\n";
- } elsif (!util::is_inline_array($e)) {
- if ($var_prefix =~ /^r->out/ && $size =~ /^\*r->in/) {
- my $size2 = substr($size, 1);
- pidl "if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) { NDR_ALLOC(ndr, $size2); }\n";
- }
-
- # non fixed arrays encode the size just before the array
- pidl "\t{\n";
- pidl "\t\tuint32_t _array_size;\n";
- pidl "\t\tndr_pull_uint32(ndr, tree, hf_array_size, &_array_size);\n";
- if ($size =~ /r->in/) {
- pidl "\t\tif (!(ndr->flags & LIBNDR_FLAG_REF_ALLOC) && _array_size != $size) {\n";
- } else {
- pidl "\t\tif ($size != _array_size) {\n";
- }
- pidl "\t\t\t//return ndr_pull_error(ndr, NDR_ERR_ARRAY_SIZE, \"Bad array size %u should be %u\", _array_size, $size);\n";
- pidl "\t\t\treturn;\n";
- pidl "\t\t}\n";
- if ($size =~ /r->in/) {
- pidl "else { $size = _array_size; }\n";
- }
- pidl "\t}\n";
- }
-
- if ((util::need_alloc($e) && !util::is_fixed_array($e)) ||
- ($var_prefix eq "r->in." && util::has_property($e, "ref"))) {
- if (!util::is_inline_array($e) || $ndr_flags eq "NDR_SCALARS") {
- pidl "\t\tNDR_ALLOC_N(ndr, $var_prefix$e->{NAME}, MAX(1, $alloc_size));\n";
- }
- }
-
- if (($var_prefix eq "r->out." && util::has_property($e, "ref"))) {
- if (!util::is_inline_array($e) || $ndr_flags eq "NDR_SCALARS") {
- pidl "\tif (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {";
- pidl "\t\tNDR_ALLOC_N(ndr, $var_prefix$e->{NAME}, MAX(1, $alloc_size));\n";
- pidl "\t}\n";
- }
- }
-
- pidl "\t{\n";
-
- if (my $length = util::has_property($e, "length_is")) {
- $length = find_size_var($e, $length, $var_prefix);
- pidl "\t\tuint32_t _offset, _length;\n";
- pidl "\t\tndr_pull_uint32(ndr, tree, hf_array_offset, &_offset);\n";
- pidl "\t\tndr_pull_uint32(ndr, tree, hf_array_length, &_length);\n";
- pidl "\t\tif (_offset != 0) return; // ndr_pull_error(ndr, NDR_ERR_OFFSET, \"Bad array offset 0x%08x\", _offset);\n";
- pidl "\t\tif (_length > $size || _length != $length) return; // ndr_pull_error(ndr, NDR_ERR_LENGTH, \"Bad array length 0x%08x > size 0x%08x\", _offset, $size);\n\n";
- $size = "_length";
- }
-
- if (util::is_scalar_type($e->{TYPE})) {
- pidl "\t\tndr_pull_array_$e->{TYPE}(ndr, $ndr_flags, tree, \"" . field2name($e->{NAME}) . "\", hf_$e->{NAME}_$e->{TYPE}, $var_prefix$e->{NAME}, $size);\n";
- } else {
- pidl "\t\tndr_pull_array(ndr, $ndr_flags, tree, \"" . field2name($e->{NAME}) . "\", (void **)$var_prefix$e->{NAME}, sizeof($var_prefix$e->{NAME}\[0]), $size, (ndr_pull_flags_fn_t)ndr_pull_$e->{TYPE});\n";
- }
-
- pidl "\t}\n";
-}
-
-
-#####################################################################
-# parse scalars in a structure element - pull size
-sub ParseElementPullSwitch($$$$)
-{
- my($e) = shift;
- my($var_prefix) = shift;
- my($ndr_flags) = shift;
- my $switch = shift;
- my $switch_var = find_size_var($e, $switch, $var_prefix);
-
- my $cprefix = util::c_pull_prefix($e);
-
- my $utype = $structs{$e->{TYPE}};
- if (!defined $utype ||
- !util::has_property($utype->{DATA}, "nodiscriminant")) {
- my $e2 = find_sibling($e, $switch);
- pidl "\tif (($ndr_flags) & NDR_SCALARS) {\n";
- pidl "\t\t $e2->{TYPE} _level;\n";
- pidl "\t\tndr_pull_$e2->{TYPE}(ndr, tree, hf_level, &_level);\n";
- if ($switch_var =~ /r->in/) {
- pidl "\t\tif (!(ndr->flags & LIBNDR_FLAG_REF_ALLOC) && _level != $switch_var) {\n";
- } else {
- pidl "\t\tif (_level != $switch_var) {\n";
- }
- pidl "\t\t\treturn; // ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value %u in $e->{NAME}\", _level);\n";
- pidl "\t\t}\n";
- if ($switch_var =~ /r->/) {
- pidl "else { $switch_var = _level; }\n";
- }
- pidl "\t}\n";
- }
-
- my $sub_size = util::has_property($e, "subcontext");
- if (defined $sub_size) {
- pidl "\tndr_pull_subcontext_union_fn(ndr, $sub_size, $switch_var, $cprefix$var_prefix$e->{NAME}, (ndr_pull_union_fn_t) ndr_pull_$e->{TYPE});\n";
- } else {
- pidl "\tndr_pull_$e->{TYPE}(ndr, $ndr_flags, tree, $switch_var, $cprefix$var_prefix$e->{NAME});\n";
- }
-
-
-}
-
-#####################################################################
-# parse scalars in a structure element - pull size
-sub ParseElementPullScalar($$$)
-{
- my($e) = shift;
- my($var_prefix) = shift;
- my($ndr_flags) = shift;
- my $cprefix = util::c_pull_prefix($e);
- my $sub_size = util::has_property($e, "subcontext");
-
- start_flags($e);
-
- if (util::has_property($e, "relative")) {
- pidl "\tndr_pull_relative(ndr, tree, (const void **)&$var_prefix$e->{NAME}, sizeof(*$var_prefix$e->{NAME}), (ndr_pull_flags_fn_t)ndr_pull_$e->{TYPE});\n";
- } elsif (util::is_inline_array($e)) {
- ParseArrayPull($e, "r->", "NDR_SCALARS");
- } elsif (util::need_wire_pointer($e)) {
- pidl "\tndr_pull_ptr(ndr, tree, hf_ptr, &_ptr_$e->{NAME});\n";
- pidl "\tif (_ptr_$e->{NAME}) {\n";
- pidl "\t\tNDR_ALLOC(ndr, $var_prefix$e->{NAME});\n";
- pidl "\t} else {\n";
- pidl "\t\t$var_prefix$e->{NAME} = NULL;\n";
- pidl "\t}\n";
- } elsif (util::need_alloc($e)) {
- # no scalar component
- } elsif (my $switch = util::has_property($e, "switch_is")) {
- ParseElementPullSwitch($e, $var_prefix, $ndr_flags, $switch);
- } elsif (defined $sub_size) {
- if (util::is_builtin_type($e->{TYPE})) {
- pidl "\tndr_pull_subcontext_fn(ndr, tree, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_pull_fn_t) ndr_pull_$e->{TYPE});\n";
- } else {
- pidl "\tndr_pull_subcontext_flags_fn(ndr, tree, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_pull_flags_fn_t) ndr_pull_$e->{TYPE});\n";
- }
- } elsif (util::is_builtin_type($e->{TYPE})) {
- pidl "\tndr_pull_$e->{TYPE}(ndr, tree, hf_$e->{NAME}_$e->{TYPE}, $cprefix$var_prefix$e->{NAME});\n";
- } else {
- pidl "\tndr_pull_$e->{TYPE}(ndr, $ndr_flags, get_subtree(tree, \"" . field2name($e->{NAME}) . "\", ndr, ett_$e->{TYPE}), $cprefix$var_prefix$e->{NAME});\n";
- }
-
- end_flags($e);
-}
-
-#####################################################################
-# parse buffers in a structure element - pull side
-sub ParseElementPullBuffer($$$)
-{
- my($e) = shift;
- my($var_prefix) = shift;
- my($ndr_flags) = shift;
- my $cprefix = util::c_pull_prefix($e);
- my $sub_size = util::has_property($e, "subcontext");
-
- if (util::is_pure_scalar($e)) {
- return;
- }
-
- if (util::has_property($e, "relative")) {
- return;
- }
-
- start_flags($e);
-
- if (util::need_wire_pointer($e)) {
- pidl "\tif ($var_prefix$e->{NAME}) {\n";
- }
-
- if (util::is_inline_array($e)) {
- ParseArrayPull($e, "r->", "NDR_BUFFERS");
- } elsif (util::array_size($e)) {
- ParseArrayPull($e, "r->", "NDR_SCALARS|NDR_BUFFERS");
- } elsif (my $switch = util::has_property($e, "switch_is")) {
- if ($e->{POINTERS}) {
- ParseElementPullSwitch($e, $var_prefix, "NDR_SCALARS|NDR_BUFFERS", $switch);
- } else {
- ParseElementPullSwitch($e, $var_prefix, "NDR_BUFFERS", $switch);
- }
- } elsif (defined $sub_size) {
- if ($e->{POINTERS}) {
- if (util::is_builtin_type($e->{TYPE})) {
- pidl "\tndr_pull_subcontext_fn(ndr, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_pull_fn_t) ndr_pull_$e->{TYPE});\n";
- } else {
- pidl "\tndr_pull_subcontext_flags_fn(ndr, tree, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_pull_flags_fn_t) ndr_pull_$e->{TYPE});\n";
- }
- }
- } elsif (util::is_builtin_type($e->{TYPE})) {
- pidl "\t\tndr_pull_$e->{TYPE}(ndr, tree, hf_$e->{NAME}_$e->{TYPE}, $cprefix$var_prefix$e->{NAME});\n";
- } elsif ($e->{POINTERS}) {
- pidl "\t\tndr_pull_$e->{TYPE}(ndr, NDR_SCALARS|NDR_BUFFERS, get_subtree(tree, \"" . field2name($e->{NAME}) . "\", ndr, ett_$e->{TYPE}), $cprefix$var_prefix$e->{NAME});\n";
- } else {
- pidl "\t\tndr_pull_$e->{TYPE}(ndr, $ndr_flags, get_subtree(tree, \"" . field2name($e->{NAME}) . "\", ndr, ett_$e->{TYPE}), $cprefix$var_prefix$e->{NAME});\n";
- }
-
- if (util::need_wire_pointer($e)) {
- pidl "\t}\n";
- }
-
- end_flags($e);
-}
-
-#####################################################################
-# parse a struct - pull side
-sub ParseStructPull($)
-{
- my($struct) = shift;
- my $conform_e;
-
- if (! defined $struct->{ELEMENTS}) {
- return;
- }
-
- # see if the structure contains a conformant array. If it
- # does, then it must be the last element of the structure, and
- # we need to pull the conformant length early, as it fits on
- # the wire before the structure (and even before the structure
- # alignment)
- my $e = $struct->{ELEMENTS}[-1];
- if (defined $e->{ARRAY_LEN} && $e->{ARRAY_LEN} eq "*") {
- $conform_e = $e;
- pidl "\tuint32_t _conformant_size;\n";
- $conform_e->{CONFORMANT_SIZE} = "_conformant_size";
- }
-
- # declare any internal pointers we need
- foreach my $e (@{$struct->{ELEMENTS}}) {
- if (util::need_wire_pointer($e) &&
- !util::has_property($e, "relative")) {
- pidl "\tuint32_t _ptr_$e->{NAME};\n";
- }
- }
-
- start_flags($struct);
-
- pidl "\tif (!(ndr_flags & NDR_SCALARS)) goto buffers;\n";
-
- pidl "\tndr_pull_struct_start(ndr);\n";
-
- if (defined $conform_e) {
- pidl "\tndr_pull_uint32(ndr, tree, hf_conformant_size, &$conform_e->{CONFORMANT_SIZE});\n";
- }
-
- my $align = struct_alignment($struct);
- pidl "\tndr_pull_align(ndr, $align);\n";
-
- foreach my $e (@{$struct->{ELEMENTS}}) {
- ParseElementPullScalar($e, "r->", "NDR_SCALARS");
- }
-
- pidl "buffers:\n";
- pidl "\tif (!(ndr_flags & NDR_BUFFERS)) goto done;\n";
- foreach my $e (@{$struct->{ELEMENTS}}) {
- ParseElementPullBuffer($e, "r->", "NDR_BUFFERS");
- }
-
- pidl "\tndr_pull_struct_end(ndr);\n";
-
- pidl "done:\n";
-
- end_flags($struct);
-}
-
-
-#####################################################################
-# parse a union - pull side
-sub ParseUnionPull($)
-{
- my $e = shift;
- my $have_default = 0;
-
- start_flags($e);
-
- pidl "\tif (!(ndr_flags & NDR_SCALARS)) goto buffers;\n";
-
- pidl "\tndr_pull_struct_start(ndr);\n";
-
-# my $align = union_alignment($e);
-# pidl "\tndr_pull_align(ndr, $align);\n";
-
- pidl "\tswitch (level) {\n";
- foreach my $el (@{$e->{DATA}}) {
- if ($el->{CASE} eq "default") {
- pidl "\tdefault: {\n";
- $have_default = 1;
- } else {
- pidl "\tcase $el->{CASE}: {\n";
- }
- if ($el->{TYPE} eq "UNION_ELEMENT") {
- my $e2 = $el->{DATA};
- if ($e2->{POINTERS}) {
- pidl "\t\tuint32_t _ptr_$e2->{NAME};\n";
- }
- ParseElementPullScalar($el->{DATA}, "r->", "NDR_SCALARS");
- }
- pidl "\tbreak; }\n\n";
- }
- if (! $have_default) {
- pidl "\tdefault:\n";
- pidl "\t\treturn; // ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);\n";
- }
- pidl "\t}\n";
- pidl "buffers:\n";
- pidl "\tif (!(ndr_flags & NDR_BUFFERS)) goto done;\n";
- pidl "\tswitch (level) {\n";
- foreach my $el (@{$e->{DATA}}) {
- if ($el->{CASE} eq "default") {
- pidl "\tdefault:\n";
- } else {
- pidl "\tcase $el->{CASE}:\n";
- }
- if ($el->{TYPE} eq "UNION_ELEMENT") {
- ParseElementPullBuffer($el->{DATA}, "r->", "NDR_BUFFERS");
- }
- pidl "\tbreak;\n\n";
- }
- if (! $have_default) {
- pidl "\tdefault:\n";
- pidl "\t\treturn; // ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value \%u\", level);\n";
- }
- pidl "\t}\n";
- pidl "\tndr_pull_struct_end(ndr);\n";
- pidl "done:\n";
- end_flags($e);
-}
-
-#####################################################################
-# parse a type
-sub ParseTypePull($)
-{
- my($data) = shift;
-
- if (ref($data) eq "HASH") {
- ($data->{TYPE} eq "STRUCT") &&
- ParseStructPull($data);
- ($data->{TYPE} eq "UNION") &&
- ParseUnionPull($data);
- }
-}
-
-#####################################################################
-# parse a typedef - pull side
-sub ParseTypedefPull($)
-{
- my($e) = shift;
- my $static = fn_prefix($e);
-
- if (! $needed{"pull_$e->{NAME}"}) {
-# print "pull_$e->{NAME} not needed\n";
- return;
- }
-
- pidl "/*\n\n";
- pidl IdlDump::DumpTypedef($e);
- pidl "*/\n\n";
-
- if ($e->{DATA}->{TYPE} eq "STRUCT") {
- pidl $static . "void ndr_pull_$e->{NAME}(struct ndr_pull *ndr, int ndr_flags, proto_tree *tree, struct $e->{NAME} *r)";
- pidl "\n{\n";
- ParseTypePull($e->{DATA});
- pidl "\treturn;\n";
- pidl "}\n\n";
- }
-
- if ($e->{DATA}->{TYPE} eq "UNION") {
- pidl $static . "void ndr_pull_$e->{NAME}(struct ndr_pull *ndr, int ndr_flags, proto_tree *tree, uint16_t level, union $e->{NAME} *r)";
- pidl "\n{\n";
- ParseTypePull($e->{DATA});
- pidl "\treturn;\n";
- pidl "}\n\n";
- }
-}
-
-#####################################################################
-# parse a function element
-sub ParseFunctionElementPull($$)
-{
- my $e = shift;
- my $inout = shift;
-
- if (util::array_size($e)) {
- if (util::need_wire_pointer($e)) {
- pidl "\tndr_pull_ptr(ndr, &_ptr_$e->{NAME});\n";
- pidl "\tif (_ptr_$e->{NAME}) {\n";
- } elsif ($inout eq "out" && util::has_property($e, "ref")) {
- pidl "\tif (r->$inout.$e->{NAME}) {\n";
- } else {
- pidl "\t{\n";
- }
- ParseArrayPull($e, "r->$inout.", "NDR_SCALARS|NDR_BUFFERS");
- pidl "\t}\n";
- } else {
- if ($inout eq "out" && util::has_property($e, "ref")) {
- pidl "\tif (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {\n";
- pidl "\tNDR_ALLOC(ndr, r->out.$e->{NAME});\n";
- pidl "\t}\n";
- }
- if ($inout eq "in" && util::has_property($e, "ref")) {
- pidl "\tNDR_ALLOC(ndr, r->in.$e->{NAME});\n";
- }
-
- ParseElementPullScalar($e, "r->$inout.", "NDR_SCALARS|NDR_BUFFERS");
- if ($e->{POINTERS}) {
- ParseElementPullBuffer($e, "r->$inout.", "NDR_SCALARS|NDR_BUFFERS");
- }
- }
-}
-
-
-############################################################
-# allocate ref variables
-sub AllocateRefVars($)
-{
- my $e = shift;
- my $asize = util::array_size($e);
-
- # note that if the variable is also an "in"
- # variable then we copy the initial value from
- # the in side
-
- if (!defined $asize) {
- # its a simple variable
- pidl "\tNDR_ALLOC(ndr, r->out.$e->{NAME});\n";
- if (util::has_property($e, "in")) {
- pidl "\t*r->out.$e->{NAME} = *r->in.$e->{NAME};\n";
- } else {
- pidl "\tZERO_STRUCTP(r->out.$e->{NAME});\n";
- }
- return;
- }
-
- # its an array
- my $size = find_size_var($e, $asize, "r->out.");
- pidl "\tNDR_ALLOC_N(ndr, r->out.$e->{NAME}, MAX(1, $size));\n";
- if (util::has_property($e, "in")) {
- pidl "\tmemcpy(r->out.$e->{NAME},r->in.$e->{NAME},$size * sizeof(*r->in.$e->{NAME}));\n";
- } else {
- pidl "\tmemset(r->out.$e->{NAME}, 0, $size * sizeof(*r->out.$e->{NAME}));\n";
- }
-}
-
-
git.samba.org / samba.git / commitdiff