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author | Jelmer Vernooij <jelmer@samba.org> | 2005-02-22 19:44:14 +0000 |
---|---|---|
committer | Gerald (Jerry) Carter <jerry@samba.org> | 2007-10-10 13:10:52 -0500 |
commit | 1b11ca3e51e3f2b13a15d195ce2ce89bd8b0871c (patch) | |
tree | 0c9eb22f7f9125a74638e5468474d0318b3f5db8 /source4/build | |
parent | 001dfe73dd3a2d5a19b39525c2a3715923cbc070 (diff) | |
download | samba-1b11ca3e51e3f2b13a15d195ce2ce89bd8b0871c.tar.gz samba-1b11ca3e51e3f2b13a15d195ce2ce89bd8b0871c.tar.bz2 samba-1b11ca3e51e3f2b13a15d195ce2ce89bd8b0871c.zip |
r5506: Simplify the use of subcontexts and make them a bit less a special case.
(This used to be commit 48d54a9b57c0b233c7c60392b23876b426bbdec1)
Diffstat (limited to 'source4/build')
-rw-r--r-- | source4/build/pidl/ndr.pm | 239 |
1 files changed, 155 insertions, 84 deletions
diff --git a/source4/build/pidl/ndr.pm b/source4/build/pidl/ndr.pm index 1a11c66563..27f0b87d97 100644 --- a/source4/build/pidl/ndr.pm +++ b/source4/build/pidl/ndr.pm @@ -168,17 +168,16 @@ sub need_wire_pointer($) return $n; } -# determine if an element is a pure scalar. pure scalars do not -# have a "buffers" section in NDR -sub is_pure_scalar($) +# determine if an element needs a "buffers" section in NDR +sub need_buffers_section($) { my $e = shift; - if (is_scalar_type($e->{TYPE}) && - need_wire_pointer($e) == 0 && + if ((is_scalar_type($e->{TYPE}) || util::has_property($e, "subcontext")) && + $e->{POINTERS} == 0 && !util::array_size($e)) { - return 1; + return 0; } - return 0; + return 1; } # see if a variable needs to be allocated by the NDR subsystem on pull @@ -425,9 +424,10 @@ sub ParseArrayPushPreceding($$$) ##################################################################### # parse the data of an array - push side -sub ParseArrayPush($$$) +sub ParseArrayPush($$$$) { my $e = shift; + my $ndr = shift; my $var_prefix = shift; my $ndr_flags = shift; @@ -441,15 +441,15 @@ sub ParseArrayPush($$$) if (is_varying_array($e)) { my $length = util::has_property($e, "length_is"); $length = ParseExpr($e, $length, $var_prefix); - pidl "NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, 0));"; - pidl "NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, $length));"; + pidl "NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, 0));"; + pidl "NDR_CHECK(ndr_push_uint32($ndr, NDR_SCALARS, $length));"; $size = $length; } if (is_scalar_type($e->{TYPE})) { - pidl "NDR_CHECK(ndr_push_array_$e->{TYPE}(ndr, $ndr_flags, $var_prefix$e->{NAME}, $size));"; + pidl "NDR_CHECK(ndr_push_array_$e->{TYPE}($ndr, $ndr_flags, $var_prefix$e->{NAME}, $size));"; } else { - pidl "NDR_CHECK(ndr_push_array(ndr, $ndr_flags, $var_prefix$e->{NAME}, sizeof($var_prefix$e->{NAME}\[0]), $size, (ndr_push_flags_fn_t)ndr_push_$e->{TYPE}));"; + pidl "NDR_CHECK(ndr_push_array($ndr, $ndr_flags, $var_prefix$e->{NAME}, sizeof($var_prefix$e->{NAME}\[0]), $size, (ndr_push_flags_fn_t)ndr_push_$e->{TYPE}));"; } } @@ -515,9 +515,10 @@ sub ParseArrayPullPreceding($$$) ##################################################################### # parse an array - pull side -sub ParseArrayPull($$$) +sub ParseArrayPull($$$$) { my $e = shift; + my $ndr = shift; my $var_prefix = shift; my $ndr_flags = shift; @@ -527,55 +528,110 @@ sub ParseArrayPull($$$) # if this is a conformant array then we use that size to allocate, and make sure # we allocate enough to pull the elements if (is_conformant_array($e) and is_surrounding_array($e)) { - $alloc_size = "ndr_get_array_size(ndr, &$var_prefix$e->{NAME})"; + $alloc_size = "ndr_get_array_size($ndr, &$var_prefix$e->{NAME})"; check_null_pointer($size); pidl "if ($size > $alloc_size) {"; indent; - pidl "return ndr_pull_error(ndr, NDR_ERR_CONFORMANT_SIZE, \"Bad conformant size %u should be %u\", $alloc_size, $size);"; + pidl "return ndr_pull_error($ndr, NDR_ERR_CONFORMANT_SIZE, \"Bad conformant size %u should be %u\", $alloc_size, $size);"; deindent; pidl "}"; } elsif (!is_inline_array($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, $size2); }"; + pidl "if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) { NDR_ALLOC($ndr, $size2); }"; } ParseArrayPullPreceding($e, $var_prefix, $ndr_flags); - $alloc_size = "ndr_get_array_size(ndr, &$var_prefix$e->{NAME})"; + $alloc_size = "ndr_get_array_size($ndr, &$var_prefix$e->{NAME})"; } if ((need_alloc($e) && !is_fixed_array($e)) || ($var_prefix eq "r->in." && util::has_property($e, "ref"))) { if (!is_inline_array($e) || $ndr_flags eq "NDR_SCALARS") { - pidl "NDR_ALLOC_N(ndr, $var_prefix$e->{NAME}, $alloc_size);"; + pidl "NDR_ALLOC_N($ndr, $var_prefix$e->{NAME}, $alloc_size);"; } } if (($var_prefix eq "r->out." && util::has_property($e, "ref"))) { if (!is_inline_array($e) || $ndr_flags eq "NDR_SCALARS") { - pidl "if (ndr->flags & LIBNDR_FLAG_REF_ALLOC) {"; - indent; - pidl "NDR_ALLOC_N(ndr, $var_prefix$e->{NAME}, $alloc_size);"; - deindent; + pidl "if ($ndr->flags & LIBNDR_FLAG_REF_ALLOC) {"; + pidl "\tNDR_ALLOC_N($ndr, $var_prefix$e->{NAME}, $alloc_size);"; pidl "}"; } } if (is_varying_array($e)) { - pidl "NDR_CHECK(ndr_pull_array_length(ndr, &$var_prefix$e->{NAME}));"; - $size = "ndr_get_array_length(ndr, &$var_prefix$e->{NAME})"; + pidl "NDR_CHECK(ndr_pull_array_length($ndr, &$var_prefix$e->{NAME}));"; + $size = "ndr_get_array_length($ndr, &$var_prefix$e->{NAME})"; } check_null_pointer($size); if (is_scalar_type($e->{TYPE})) { - pidl "NDR_CHECK(ndr_pull_array_$e->{TYPE}(ndr, $ndr_flags, $var_prefix$e->{NAME}, $size));"; + pidl "NDR_CHECK(ndr_pull_array_$e->{TYPE}($ndr, $ndr_flags, $var_prefix$e->{NAME}, $size));"; } else { - pidl "NDR_CHECK(ndr_pull_array(ndr, $ndr_flags, (void **)$var_prefix$e->{NAME}, sizeof($var_prefix$e->{NAME}\[0]), $size, (ndr_pull_flags_fn_t)ndr_pull_$e->{TYPE}));"; + pidl "NDR_CHECK(ndr_pull_array($ndr, $ndr_flags, (void **)$var_prefix$e->{NAME}, sizeof($var_prefix$e->{NAME}\[0]), $size, (ndr_pull_flags_fn_t)ndr_pull_$e->{TYPE}));"; } } +sub ParseSubcontextPushStart($) +{ + my $e = shift; + my $sub_size = util::has_property($e, "subcontext"); + + pidl "{"; + indent; + pidl "struct ndr_push *_ndr_$e->{NAME};"; + pidl ""; + pidl "_ndr_$e->{NAME} = ndr_push_init_ctx(ndr);"; + pidl "if (!_ndr_$e->{NAME}) return NT_STATUS_NO_MEMORY;"; + pidl "_ndr_$e->{NAME}->flags = ndr->flags;"; + pidl ""; + + return "_ndr_$e->{NAME}"; +} + +sub ParseSubcontextPushEnd($) +{ + my $e = shift; + my $sub_size = util::has_property($e, "subcontext"); + pidl "NDR_CHECK(ndr_push_subcontext_header(ndr, $sub_size, _ndr_$e->{NAME}));"; + pidl "NDR_CHECK(ndr_push_bytes(ndr, _ndr_$e->{NAME}->data, _ndr_$e->{NAME}->offset));"; + deindent; + pidl "}"; +} + +sub ParseSubcontextPullStart($) +{ + my $e = shift; + my $sub_size = util::has_property($e, "subcontext"); + + pidl "{"; + indent; + pidl "struct ndr_pull *_ndr_$e->{NAME};"; + pidl "NDR_ALLOC(ndr, _ndr_$e->{NAME});"; + pidl "NDR_CHECK(ndr_pull_subcontext_header(ndr, $sub_size, _ndr_$e->{NAME}));"; + + return "_ndr_$e->{NAME}"; +} + +sub ParseSubcontextPullEnd($) +{ + my $e = shift; + my $sub_size = util::has_property($e, "subcontext"); + + my $advance; + if ($sub_size) { + $advance = "_ndr_$e->{NAME}->data_size"; + } else { + $advance = "_ndr_$e->{NAME}->offset"; + } + pidl "NDR_CHECK(ndr_pull_advance(ndr, $advance));"; + deindent; + pidl "}"; +} + ##################################################################### # parse scalars in a structure element sub ParseElementPushScalar($$$) @@ -586,6 +642,7 @@ sub ParseElementPushScalar($$$) my $cprefix = c_push_prefix($e); my $ptr_prefix = c_ptr_prefix($e); my $sub_size = util::has_property($e, "subcontext"); + my $ndr = "ndr"; start_flags($e); @@ -593,18 +650,24 @@ sub ParseElementPushScalar($$$) pidl "$cprefix$var_prefix$e->{NAME} = $value;"; } + if (defined $sub_size and $e->{POINTERS} == 0) { + $ndr = ParseSubcontextPushStart($e); + } + if (need_wire_pointer($e)) { - ParseElementPushPtr($e, $ptr_prefix.$var_prefix); + ParsePtrPush($e, $ptr_prefix.$var_prefix); } elsif (is_inline_array($e)) { - ParseArrayPush($e, "r->", "NDR_SCALARS"); + ParseArrayPush($e, $ndr, "r->", "NDR_SCALARS"); } elsif (need_alloc($e)) { # no scalar component } elsif (my $switch = util::has_property($e, "switch_is")) { - ParseElementPushSwitch($e, $var_prefix, $ndr_flags, $switch); - } elsif (defined $sub_size) { - pidl "NDR_CHECK(ndr_push_subcontext_flags_fn(ndr, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_push_flags_fn_t) ndr_push_$e->{TYPE}));"; + ParseSwitchPush($e, $ndr, $var_prefix, $ndr_flags, $switch); } else { - pidl "NDR_CHECK(ndr_push_$e->{TYPE}(ndr, $ndr_flags, $cprefix$var_prefix$e->{NAME}));"; + pidl "NDR_CHECK(ndr_push_$e->{TYPE}($ndr, $ndr_flags, $cprefix$var_prefix$e->{NAME}));"; + } + + if (defined $sub_size and $e->{POINTERS} == 0) { + ParseSubcontextPushEnd($e); } end_flags($e); @@ -612,7 +675,7 @@ sub ParseElementPushScalar($$$) ##################################################################### # parse a pointer in a struct element or function -sub ParseElementPushPtr($$) +sub ParsePtrPush($$) { my $e = shift; my $var_prefix = shift; @@ -675,9 +738,10 @@ sub ParseElementPrint($$) ##################################################################### # parse scalars in a structure element - pull size -sub ParseElementPullSwitch($$$$) +sub ParseSwitchPull($$$$$) { my($e) = shift; + my $ndr = shift; my($var_prefix) = shift; my($ndr_flags) = shift; my $switch = shift; @@ -696,15 +760,15 @@ sub ParseElementPullSwitch($$$$) pidl "if (($ndr_flags) & NDR_SCALARS) {"; indent; pidl "$type_decl _level;"; - pidl "NDR_CHECK(ndr_pull_$e2->{TYPE}(ndr, NDR_SCALARS, &_level));"; + pidl "NDR_CHECK(ndr_pull_$e2->{TYPE}($ndr, NDR_SCALARS, &_level));"; if ($switch_var =~ /r->in/) { - pidl "if (!(ndr->flags & LIBNDR_FLAG_REF_ALLOC) && _level != $switch_var) {"; + pidl "if (!($ndr->flags & LIBNDR_FLAG_REF_ALLOC) && _level != $switch_var) {"; indent; } else { pidl "if (_level != $switch_var) {"; indent; } - pidl "return ndr_pull_error(ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value %u in $e->{NAME}\", _level);"; + pidl "return ndr_pull_error($ndr, NDR_ERR_BAD_SWITCH, \"Bad switch value %u in $e->{NAME}\", _level);"; deindent; if ($switch_var =~ /r->/) { pidl "} else { $switch_var = _level; }"; @@ -715,21 +779,15 @@ sub ParseElementPullSwitch($$$$) pidl "}"; } - my $sub_size = util::has_property($e, "subcontext"); - if (defined $sub_size) { - pidl "if (($ndr_flags) & NDR_SCALARS) {"; - pidl "\tNDR_CHECK(ndr_pull_subcontext_union_fn(ndr, $sub_size, $switch_var, $cprefix$var_prefix$e->{NAME}, (ndr_pull_union_fn_t) ndr_pull_$e->{TYPE}));"; - pidl "}"; - } else { - pidl "NDR_CHECK(ndr_pull_$e->{TYPE}(ndr, $ndr_flags, $switch_var, $cprefix$var_prefix$e->{NAME}));"; - } + pidl "NDR_CHECK(ndr_pull_$e->{TYPE}($ndr, $ndr_flags, $switch_var, $cprefix$var_prefix$e->{NAME}));"; } ##################################################################### # push switch element -sub ParseElementPushSwitch($$$$) +sub ParseSwitchPush($$$$$) { my($e) = shift; + my $ndr = shift; my($var_prefix) = shift; my($ndr_flags) = shift; my $switch = shift; @@ -743,18 +801,11 @@ sub ParseElementPushSwitch($$$$) !util::has_property($utype, "nodiscriminant")) { my $e2 = util::find_sibling($e, $switch); pidl "if (($ndr_flags) & NDR_SCALARS) {"; - pidl "\tNDR_CHECK(ndr_push_$e2->{TYPE}(ndr, NDR_SCALARS, $switch_var));"; + pidl "\tNDR_CHECK(ndr_push_$e2->{TYPE}($ndr, NDR_SCALARS, $switch_var));"; pidl "}"; } - my $sub_size = util::has_property($e, "subcontext"); - if (defined $sub_size) { - pidl "if(($ndr_flags) & NDR_SCALARS) {"; - pidl "\tNDR_CHECK(ndr_push_subcontext_union_fn(ndr, $sub_size, $switch_var, $cprefix$var_prefix$e->{NAME}, (ndr_push_union_fn_t) ndr_push_$e->{TYPE}));"; - pidl "}"; - } else { - pidl "NDR_CHECK(ndr_push_$e->{TYPE}(ndr, $ndr_flags, $switch_var, $cprefix$var_prefix$e->{NAME}));"; - } + pidl "NDR_CHECK(ndr_push_$e->{TYPE}($ndr, $ndr_flags, $switch_var, $cprefix$var_prefix$e->{NAME}));"; } ##################################################################### @@ -767,35 +818,43 @@ sub ParseElementPullScalar($$$) my $cprefix = c_pull_prefix($e); my $ptr_prefix = c_ptr_prefix($e); my $sub_size = util::has_property($e, "subcontext"); + my $ndr = "ndr"; start_flags($e); + if (defined $sub_size && $e->{POINTERS} == 0) { + $ndr = ParseSubcontextPullStart($e); + $ndr_flags = "NDR_SCALARS|NDR_BUFFERS"; + } + if (is_inline_array($e)) { - ParseArrayPull($e, "r->", "NDR_SCALARS"); + ParseArrayPull($e, $ndr, "r->", "NDR_SCALARS"); } elsif (need_wire_pointer($e)) { - ParseElementPullPtr($e, $ptr_prefix.$var_prefix); + ParsePtrPull($e, $ptr_prefix.$var_prefix); } elsif (is_surrounding_array($e)) { } elsif (my $switch = util::has_property($e, "switch_is")) { - ParseElementPullSwitch($e, $var_prefix, $ndr_flags, $switch); - } elsif (defined $sub_size) { - pidl "NDR_CHECK(ndr_pull_subcontext_flags_fn(ndr, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_pull_flags_fn_t) ndr_pull_$e->{TYPE}));"; + ParseSwitchPull($e, $ndr, $var_prefix, $ndr_flags, $switch); } else { - pidl "NDR_CHECK(ndr_pull_$e->{TYPE}(ndr, $ndr_flags, $cprefix$var_prefix$e->{NAME}));"; + pidl "NDR_CHECK(ndr_pull_$e->{TYPE}($ndr, $ndr_flags, $cprefix$var_prefix$e->{NAME}));"; } if (my $range = util::has_property($e, "range")) { my ($low, $high) = split(/ /, $range, 2); pidl "if ($var_prefix$e->{NAME} < $low || $var_prefix$e->{NAME} > $high) {"; - pidl "\treturn ndr_pull_error(ndr, NDR_ERR_RANGE, \"value out of range\");"; + pidl "\treturn ndr_pull_error($ndr, NDR_ERR_RANGE, \"value out of range\");"; pidl "}"; } + if (defined $sub_size && $e->{POINTERS} == 0) { + ParseSubcontextPullEnd($e); + } + end_flags($e); } ##################################################################### # parse a pointer in a struct element or function -sub ParseElementPullPtr($$) +sub ParsePtrPull($$) { my($e) = shift; my($var_prefix) = shift; @@ -821,15 +880,16 @@ sub ParseElementPushBuffer($$) my($var_prefix) = shift; my $cprefix = c_push_prefix($e); my $sub_size = util::has_property($e, "subcontext"); + my $ndr = "ndr"; - return if (is_pure_scalar($e)); + return unless (need_buffers_section($e)); start_flags($e); my $pointers = c_ptr_prefix($e); for my $i (1..need_wire_pointer($e)) { if ($i > 1) { - ParseElementPushPtr($e,$pointers.$var_prefix); + ParsePtrPush($e,$pointers.$var_prefix); } pidl "if ($pointers$var_prefix$e->{NAME}) {"; indent; @@ -845,19 +905,24 @@ sub ParseElementPushBuffer($$) { $ndr_flags="NDR_SCALARS|$ndr_flags" } + + if (defined $sub_size) { + $ndr = ParseSubcontextPushStart($e); + $ndr_flags = "NDR_SCALARS|NDR_BUFFERS"; + } if (util::array_size($e)) { - ParseArrayPush($e, "r->", $ndr_flags); + ParseArrayPush($e, $ndr, "r->", $ndr_flags); } elsif (my $switch = util::has_property($e, "switch_is")) { - ParseElementPushSwitch($e, $var_prefix, $ndr_flags, $switch); - } elsif (defined $sub_size) { - if ($e->{POINTERS}) { - pidl "NDR_CHECK(ndr_push_subcontext_flags_fn(ndr, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_push_flags_fn_t) ndr_push_$e->{TYPE}));"; - } + ParseSwitchPush($e, $ndr, $var_prefix, $ndr_flags, $switch); } else { pidl "NDR_CHECK(ndr_push_$e->{TYPE}(ndr, $ndr_flags, $cprefix$var_prefix$e->{NAME}));"; } + if (defined $sub_size) { + ParseSubcontextPushEnd($e); + } + for my $i (1..need_wire_pointer($e)) { deindent; pidl "}"; @@ -874,15 +939,16 @@ sub ParseElementPullBuffer($$) my($var_prefix) = shift; my $cprefix = c_pull_prefix($e); my $sub_size = util::has_property($e, "subcontext"); + my $ndr = "ndr"; - return if (is_pure_scalar($e)); + return unless (need_buffers_section($e)); start_flags($e); my $pointers = c_ptr_prefix($e); for my $i (1..need_wire_pointer($e)) { if ($i > 1) { - ParseElementPullPtr($e,$pointers.$var_prefix); + ParsePtrPull($e,$pointers.$var_prefix); } pidl "if ($pointers$var_prefix$e->{NAME}) {"; indent; @@ -900,17 +966,22 @@ sub ParseElementPullBuffer($$) { $ndr_flags="NDR_SCALARS|$ndr_flags" } - + + if (defined $sub_size) { + $ndr = ParseSubcontextPullStart($e); + $ndr_flags = "NDR_SCALARS|NDR_BUFFERS"; + } + if (util::array_size($e)) { - ParseArrayPull($e, "r->", $ndr_flags); + ParseArrayPull($e, $ndr, "r->", $ndr_flags); } elsif (my $switch = util::has_property($e, "switch_is")) { - ParseElementPullSwitch($e, $var_prefix, $ndr_flags, $switch); - } elsif (defined $sub_size) { - if ($e->{POINTERS}) { - pidl "NDR_CHECK(ndr_pull_subcontext_flags_fn(ndr, $sub_size, $cprefix$var_prefix$e->{NAME}, (ndr_pull_flags_fn_t) ndr_pull_$e->{TYPE}));"; - } + ParseSwitchPull($e, $ndr, $var_prefix, $ndr_flags, $switch); } else { - pidl "NDR_CHECK(ndr_pull_$e->{TYPE}(ndr, $ndr_flags, $cprefix$var_prefix$e->{NAME}));"; + pidl "NDR_CHECK(ndr_pull_$e->{TYPE}($ndr, $ndr_flags, $cprefix$var_prefix$e->{NAME}));"; + } + + if (defined $sub_size) { + ParseSubcontextPullEnd($e); } if (util::has_property($e, "relative")) { @@ -1680,11 +1751,11 @@ sub ParseFunctionElementPush($$) pidl "NDR_CHECK(ndr_push_unique_ptr(ndr, r->$inout.$e->{NAME}));"; pidl "if (r->$inout.$e->{NAME}) {"; indent; - ParseArrayPush($e, "r->$inout.", "NDR_SCALARS|NDR_BUFFERS"); + ParseArrayPush($e, "ndr", "r->$inout.", "NDR_SCALARS|NDR_BUFFERS"); deindent; pidl "}"; } else { - ParseArrayPush($e, "r->$inout.", "NDR_SCALARS|NDR_BUFFERS"); + ParseArrayPush($e, "ndr", "r->$inout.", "NDR_SCALARS|NDR_BUFFERS"); } } else { ParseElementPushScalar($e, "r->$inout.", "NDR_SCALARS|NDR_BUFFERS"); @@ -1755,7 +1826,7 @@ sub ParseFunctionElementPull($$) pidl "{"; } indent; - ParseArrayPull($e, "r->$inout.", "NDR_SCALARS|NDR_BUFFERS"); + ParseArrayPull($e, "ndr", "r->$inout.", "NDR_SCALARS|NDR_BUFFERS"); deindent; pidl "}"; } else { |