From f72dee9e3908fb5c4ea3428e3cba703509a7e16f Mon Sep 17 00:00:00 2001 From: Jelmer Vernooij Date: Wed, 5 Oct 2005 19:41:53 +0000 Subject: r10737: Fix some alignment issues (This used to be commit 2b4270a2e965eb5c6fe0b25d22d2977e60bb7d43) --- source4/pidl/lib/Parse/Pidl/Samba3/Parser.pm | 111 +++++++++++++++++---------- source4/pidl/lib/Parse/Pidl/Samba3/Types.pm | 2 +- 2 files changed, 70 insertions(+), 43 deletions(-) (limited to 'source4/pidl/lib/Parse/Pidl') diff --git a/source4/pidl/lib/Parse/Pidl/Samba3/Parser.pm b/source4/pidl/lib/Parse/Pidl/Samba3/Parser.pm index d1188e7011..b65ece5a12 100644 --- a/source4/pidl/lib/Parse/Pidl/Samba3/Parser.pm +++ b/source4/pidl/lib/Parse/Pidl/Samba3/Parser.pm @@ -27,6 +27,23 @@ sub fatal($$) { my ($e,$s) = @_; die("$e->{FILE}:$e->{LINE}: $s\n"); } #TODO: # - Add some security checks (array sizes, memory alloc == NULL, etc) # - Don't add seperate _p and _d functions if there is no deferred data +# - [string] +# - subcontext() +# - DATA_BLOB + +sub Align($$) +{ + my ($a,$b) = @_; + + # Only align if previous element was smaller then current one + if ($$a < $b) { + pidl "if (!prs_align_custom(ps, $b))"; + pidl "\treturn False;"; + pidl ""; + } + + $$a = $b; +} sub DeclareArrayVariables { @@ -50,12 +67,19 @@ sub DeclareArrayVariables pidl "" if $output; } -sub ParseElementLevelData($$$$$$) +sub ParseElementLevelData($$$$$$$) { - my ($e,$l,$nl,$env,$varname,$what) = @_; + my ($e,$l,$nl,$env,$varname,$what,$align) = @_; my @args = ($e,$l,$varname,$what); + if (defined($e->{ALIGN})) { + Align($align, $e->{ALIGN}); + } else { + # Default to 4 + Align($align, 4); + } + # See if we need to add a level argument because we're parsing a union foreach (@{$e->{LEVELS}}) { push (@args, ParseExpr("level_$e->{NAME}", $env)) @@ -69,9 +93,9 @@ sub ParseElementLevelData($$$$$$) pidl "\treturn False;"; } -sub ParseElementLevelArray($$$$$$) +sub ParseElementLevelArray($$$$$$$) { - my ($e,$l,$nl,$env,$varname,$what) = @_; + my ($e,$l,$nl,$env,$varname,$what,$align) = @_; if ($l->{IS_ZERO_TERMINATED}) { fatal($e, "[string] attribute not supported for Samba3 yet"); @@ -85,12 +109,14 @@ sub ParseElementLevelArray($$$$$$) if ($what == PRIMITIVES) { # Fetch headers if ($l->{IS_CONFORMANT} and not $l->{IS_SURROUNDING}) { + Align($align, 4); pidl "if (!prs_uint32(\"size_$e->{NAME}\", ps, depth, &" . ParseExpr("size_$e->{NAME}", $env) . "))"; pidl "\treturn False;"; pidl ""; } if ($l->{IS_VARYING}) { + Align($align, 4); pidl "if (!prs_uint32(\"offset_$e->{NAME}\", ps, depth, &" . ParseExpr("offset_$e->{NAME}", $env) . "))"; pidl "\treturn False;"; pidl ""; @@ -115,26 +141,34 @@ sub ParseElementLevelArray($$$$$$) my $i = "i_$e->{NAME}_$l->{LEVEL_INDEX}"; pidl "for ($i=0; $i<$len;$i++) {"; indent; - ParseElementLevel($e,$nl,$env,$varname."[$i]",$what); + ParseElementLevel($e,$nl,$env,$varname."[$i]",$what,$align); deindent; pidl "}"; } -sub ParseElementLevelSwitch($$$$$$) +sub ParseElementLevelSwitch($$$$$$$) { - my ($e,$l,$nl,$env,$varname,$what) = @_; + my ($e,$l,$nl,$env,$varname,$what,$align) = @_; - ParseElementLevel($e,$nl,$env,$varname,$what); + ParseElementLevel($e,$nl,$env,$varname,$what,$align); } -sub ParseElementLevelPtr($$$$$$) +sub ParseElementLevelPtr($$$$$$$) { - my ($e,$l,$nl,$env,$varname,$what) = @_; + my ($e,$l,$nl,$env,$varname,$what,$align) = @_; if ($what == PRIMITIVES) { - pidl "if (!prs_uint32(\"ptr_$e->{NAME}\", ps, depth, &" . ParseExpr("ptr_$e->{NAME}", $env) . "))"; - pidl "\treturn False;"; - pidl ""; + if ($l->{POINTER_TYPE} eq "ref" and + $l->{LEVEL} eq "TOP") { + pidl "if (!" . ParseExpr("ptr_$e->{NAME}", $env) . ")"; + pidl "\treturn False;"; + pidl ""; + } else { + Align($align, 4); + pidl "if (!prs_uint32(\"ptr_$e->{NAME}\", ps, depth, &" . ParseExpr("ptr_$e->{NAME}", $env) . "))"; + pidl "\treturn False;"; + pidl ""; + } } if ($l->{POINTER_TYPE} eq "relative") { @@ -145,24 +179,25 @@ sub ParseElementLevelPtr($$$$$$) if ($what == DEFERRED) { pidl "if (" . ParseExpr("ptr_$e->{NAME}", $env) . ") {"; indent; - ParseElementLevel($e,$nl,$env,$varname,PRIMITIVES); - ParseElementLevel($e,$nl,$env,$varname,DEFERRED); + ParseElementLevel($e,$nl,$env,$varname,PRIMITIVES,$align); + ParseElementLevel($e,$nl,$env,$varname,DEFERRED,$align); deindent; pidl "}"; + $$align = 0; } } -sub ParseElementLevelSubcontext($$$$$$) +sub ParseElementLevelSubcontext($$$$$$$) { - my ($e,$l,$nl,$env,$varname,$what) = @_; + my ($e,$l,$nl,$env,$varname,$what,$align) = @_; fatal($e, "subcontext() not supported for Samba 3"); #FIXME } -sub ParseElementLevel($$$$$) +sub ParseElementLevel($$$$$$) { - my ($e,$l,$env,$varname,$what) = @_; + my ($e,$l,$env,$varname,$what,$align) = @_; { DATA => \&ParseElementLevelData, @@ -170,14 +205,14 @@ sub ParseElementLevel($$$$$) POINTER => \&ParseElementLevelPtr, SWITCH => \&ParseElementLevelSwitch, ARRAY => \&ParseElementLevelArray - }->{$l->{TYPE}}->($e,$l,GetNextLevel($e,$l),$env,$varname,$what); + }->{$l->{TYPE}}->($e,$l,GetNextLevel($e,$l),$env,$varname,$what,$align); } -sub ParseElement($$$) +sub ParseElement($$$$) { - my ($e,$env,$what) = @_; + my ($e,$env,$what,$align) = @_; - ParseElementLevel($e, $e->{LEVELS}[0], $env, ParseExpr($e->{NAME}, $env), $what); + ParseElementLevel($e, $e->{LEVELS}[0], $env, ParseExpr($e->{NAME}, $env), $what, $align); } sub InitLevel($$$$) @@ -264,9 +299,6 @@ sub ParseStruct($$$) pidl ""; pidl "prs_debug(ps, depth, desc, \"$pfn\");"; pidl "depth++;"; - pidl "if (!prs_align_custom(ps, $s->{ALIGN}))"; - pidl "\treturn False;"; - pidl ""; if ($s->{SURROUNDING_ELEMENT}) { pidl "if (!prs_uint32(\"size_$s->{SURROUNDING_ELEMENT}->{NAME}\", ps, depth, &" . ParseExpr("size_$s->{SURROUNDING_ELEMENT}->{NAME}", $env) . "))"; @@ -274,8 +306,9 @@ sub ParseStruct($$$) pidl ""; } + my $align = 0; foreach (@{$s->{ELEMENTS}}) { - ParseElement($_, $env, PRIMITIVES); + ParseElement($_, $env, PRIMITIVES, \$align); pidl ""; } @@ -293,12 +326,10 @@ sub ParseStruct($$$) pidl ""; pidl "prs_debug(ps, depth, desc, \"$dfn\");"; pidl "depth++;"; - pidl "if (!prs_align_custom(ps, $s->{ALIGN}))"; - pidl "\treturn False;"; - pidl ""; + $align = 0; foreach (@{$s->{ELEMENTS}}) { - ParseElement($_, $env, DEFERRED); + ParseElement($_, $env, DEFERRED, \$align); pidl ""; } @@ -344,9 +375,6 @@ sub ParseUnion($$$) pidl "{"; indent; DeclareArrayVariables($u->{ELEMENTS}); - pidl "if (!prs_align_custom(ps, $u->{ALIGN}))"; - pidl "\treturn False;"; - pidl ""; if (has_property($u, "nodiscriminant")) { pidl "if (!prs_uint32(\"switch_value\", ps, depth, &v->switch_value))"; @@ -365,8 +393,8 @@ sub ParseUnion($$$) if ($_->{TYPE} ne "EMPTY") { pidl "depth++;"; my $env = UnionGenerateEnvElement($_); - ParseElement($_, $env, PRIMITIVES); - ParseElement($_, $env, DEFERRED); + my $align = 0; + ParseElement($_, $env, PRIMITIVES, \$align); pidl "depth--;"; } pidl "break;"; @@ -385,9 +413,6 @@ sub ParseUnion($$$) pidl "{"; indent; DeclareArrayVariables($u->{ELEMENTS}); - pidl "if (!prs_align_custom(ps, $u->{ALIGN}))"; - pidl "\treturn False;"; - pidl ""; pidl "switch (level) {"; indent; @@ -398,7 +423,8 @@ sub ParseUnion($$$) if ($_->{TYPE} ne "EMPTY") { pidl "depth++;"; my $env = UnionGenerateEnvElement($_); - ParseElement($_, $env, DEFERRED); + my $align = 0; + ParseElement($_, $env, DEFERRED, \$align); pidl "depth--;"; } pidl "break;"; @@ -452,9 +478,10 @@ sub CreateFnDirection($$$$) pidl "prs_debug(ps, depth, desc, \"$fn\");"; pidl "depth++;"; + my $align = 0; foreach (@$es) { - ParseElement($_, $env, PRIMITIVES); - ParseElement($_, $env, DEFERRED); + ParseElement($_, $env, PRIMITIVES, \$align); + ParseElement($_, $env, DEFERRED, \$align); pidl ""; } diff --git a/source4/pidl/lib/Parse/Pidl/Samba3/Types.pm b/source4/pidl/lib/Parse/Pidl/Samba3/Types.pm index 38e740189b..0c66d2c6ad 100644 --- a/source4/pidl/lib/Parse/Pidl/Samba3/Types.pm +++ b/source4/pidl/lib/Parse/Pidl/Samba3/Types.pm @@ -100,7 +100,7 @@ sub dissect_string($$$) my $t = lc(decl_string($e)); - return "prs_$t(True, \"$e->{NAME}\", ps, depth, &$n)"; + return "smb_io_$t(\"$e->{NAME}\", &$n, 1, ps, depth)"; } my $known_types = -- cgit