mirror of
https://github.com/zeek/zeek.git
synced 2025-10-02 14:48:21 +00:00
Port Spicy integration to new AST API.
This commit is contained in:
Robin Sommer
parent
724daa2792
commit
db98dc4193
16 changed files with 438 additions and 364 deletions
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@ -1 +1 @@
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Subproject commit c39bdb5ed2bff0d390e6eae4ddda83050f047904
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Subproject commit b1c3c4e4eae55ed1924f90c5705d78be9dbfdccc
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@ -121,7 +121,7 @@ type ASN1OctetString = unit(len: uint64, constructed: bool) {
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# https://www.obj-sys.com/asn1tutorial/node124.html
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type ASN1String = unit(tag: ASN1Tag, len: uint64) {
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var encoding: hilti::Charset;
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var encoding: spicy::Charset;
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on %init {
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switch ( tag.type_ ) {
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@ -132,7 +132,7 @@ type ASN1String = unit(tag: ASN1Tag, len: uint64) {
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case ASN1Type::PrintableString,
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ASN1Type::GeneralizedTime,
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ASN1Type::UTCTime: {
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self.encoding = hilti::Charset::ASCII;
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self.encoding = spicy::Charset::ASCII;
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}
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case ASN1Type::UTF8String,
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@ -148,7 +148,7 @@ type ASN1String = unit(tag: ASN1Tag, len: uint64) {
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# BMPString and UniversalString. This *may* not be correct.
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ASN1Type::BMPString,
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ASN1Type::UniversalString: {
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self.encoding = hilti::Charset::UTF8;
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self.encoding = spicy::Charset::UTF8;
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}
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}
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}
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@ -216,7 +216,7 @@ public type ASN1Body = unit(head: ASN1Header, recursive: bool) {
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ASN1Type::BitString -> bitstr_value: ASN1BitString(head.len.len, head.tag.constructed);
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ASN1Type::OctetString -> str_value: ASN1OctetString(head.len.len, head.tag.constructed)
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&convert=$$.value.decode(hilti::Charset::ASCII);
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&convert=$$.value.decode(spicy::Charset::ASCII);
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ASN1Type::ObjectIdentifier -> str_value: ASN1ObjectIdentifier(head.len.len)
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&convert=$$.oidstring;
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@ -733,7 +733,7 @@ type SearchFilter = unit {
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FilterType::FILTER_EXT -> FILTER_EXT: DecodedAttributeValue(FilterType::FILTER_EXT)
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&parse-from=self.filterBytes;
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FilterType::FILTER_PRESENT -> FILTER_PRESENT: ASN1::ASN1OctetString(self.filterLen, False)
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&convert=$$.value.decode(hilti::Charset::ASCII)
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&convert=$$.value.decode(spicy::Charset::ASCII)
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&parse-from=self.filterBytes;
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};
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@ -280,7 +280,7 @@ public type LongHeaderPacket = unit {
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};
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# A QUIC Frame.
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public type Frame = unit(header: LongHeaderPacket, from_client: bool, crypto_sink: sink) {
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public type Frame = unit(header: LongHeaderPacket, from_client: bool, inout crypto_sink: sink) {
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frame_type : uint8 &convert=cast<FrameType>($$);
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# TODO: add other FrameTypes as well
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@ -447,7 +447,7 @@ type CryptoBuffer = unit() {
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#
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# A UDP datagram contains one or more QUIC packets.
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##############
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type Packet = unit(from_client: bool, context: ConnectionIDInfo&) {
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type Packet = unit(from_client: bool, inout context: ConnectionIDInfo&) {
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var decrypted_data: bytes;
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var full_packet: bytes;
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var start: iterator<stream>;
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@ -16,11 +16,12 @@
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#include <hilti/ast/declarations/type.h>
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#include <hilti/compiler/init.h>
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#include <spicy/ast/detail/visitor.h>
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#include <spicy/ast/types/unit.h>
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#include <spicy/ast/visitor.h>
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#include <spicy/autogen/config.h>
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#include <spicy/compiler/init.h>
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#include "compiler/plugin.h"
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#include "config.h"
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#include "glue-compiler.h"
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@ -31,28 +32,45 @@ using Driver = ::zeek::spicy::Driver;
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* Visitor to type information from a HILTI AST. This extracts user-visible
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* types only, we skip any internal ones.
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*/
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struct VisitorTypes : public hilti::visitor::PreOrder<void, VisitorTypes> {
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explicit VisitorTypes(Driver* driver, hilti::ID module, hilti::rt::filesystem::path path, bool is_resolved)
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: driver(driver), module(std::move(module)), path(std::move(path)), is_resolved(is_resolved) {}
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struct VisitorTypes : public spicy::visitor::PreOrder {
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explicit VisitorTypes(Driver* driver, GlueCompiler* glue, bool is_resolved)
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: driver(driver), glue(glue), is_resolved(is_resolved) {}
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void operator()(const hilti::declaration::Type& t) {
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assert(! t.type().typeID() || *t.type().typeID() == hilti::ID(module, t.id())); // ensure consistent IDs
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void operator()(hilti::declaration::Module* n) final {
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if ( n->uid().in_memory ) {
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// Ignore modules built by us in memory.
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module = {};
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return;
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}
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if ( module == hilti::ID("hilti") || module == hilti::ID("spicy_rt") || module == hilti::ID("zeek_rt") )
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module = n->scopeID();
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path = n->uid().path;
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if ( is_resolved )
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glue->addSpicyModule(module, path);
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}
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void operator()(hilti::declaration::Type* n) final {
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if ( module.empty() || module == hilti::ID("hilti") || module == hilti::ID("spicy_rt") ||
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module == hilti::ID("zeek_rt") )
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return;
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assert(! n->type()->type()->typeID() ||
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n->type()->type()->typeID() == hilti::ID(module, n->id())); // ensure consistent IDs
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types.emplace_back(TypeInfo{
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.id = hilti::ID(module, t.id()),
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.type = t.type()._clone().as<hilti::Type>(),
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.linkage = t.linkage(),
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.id = hilti::ID(module, n->id()),
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.type = n->type(),
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.linkage = n->linkage(),
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.is_resolved = is_resolved,
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.module_id = module,
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.module_path = path,
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.location = t.meta().location(),
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.location = n->meta().location(),
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});
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}
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Driver* driver;
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GlueCompiler* glue;
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hilti::ID module;
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hilti::rt::filesystem::path path;
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bool is_resolved;
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@ -61,8 +79,8 @@ struct VisitorTypes : public hilti::visitor::PreOrder<void, VisitorTypes> {
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Driver::Driver(std::unique_ptr<GlueCompiler> glue, const char* argv0, hilti::rt::filesystem::path lib_path,
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int zeek_version)
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: ::spicy::Driver("<Spicy Plugin for Zeek>"), _glue(std::move(glue)) {
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_glue->Init(this, zeek_version);
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: ::spicy::Driver("<Spicy support for Zeek>"), _glue(std::move(glue)) {
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_glue->init(this, zeek_version);
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::spicy::Configuration::extendHiltiConfiguration();
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auto options = hiltiOptions();
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@ -195,6 +213,8 @@ hilti::Result<hilti::Nothing> Driver::compile() {
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SPICY_DEBUG("Running Spicy driver");
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_error = hilti::Nothing();
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if ( auto x = ::spicy::Driver::compile(); ! x )
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return x.error();
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@ -243,23 +263,16 @@ std::vector<std::pair<TypeInfo, hilti::ID>> Driver::exportedTypes() const {
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return result;
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}
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void Driver::hookNewASTPreCompilation(std::shared_ptr<hilti::Unit> unit) {
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if ( unit->extension() != ".spicy" )
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return;
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if ( unit->path().empty() )
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// Ignore modules constructed in memory.
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return;
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auto v = VisitorTypes(this, unit->id(), unit->path(), false);
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for ( auto i : v.walk(unit->module()) )
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v.dispatch(i);
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void Driver::hookNewASTPreCompilation(const hilti::Plugin& plugin, const std::shared_ptr<hilti::ASTRoot>& root) {
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auto v = VisitorTypes(this, _glue.get(), false);
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hilti::visitor::visit(v, root, ".spicy");
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for ( const auto& ti : v.types ) {
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SPICY_DEBUG(hilti::util::fmt(" Got type '%s' (pre-compile)", ti.id));
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_types[ti.id] = ti;
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if ( auto et = ti.type.tryAs<hilti::type::Enum>(); et && ti.linkage == hilti::declaration::Linkage::Public ) {
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if ( auto et = ti.type->type()->tryAs<hilti::type::Enum>();
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et && ti.linkage == hilti::declaration::Linkage::Public ) {
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SPICY_DEBUG(" Automatically exporting public enum for backwards compatibility");
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_public_enums.push_back(ti);
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}
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@ -268,17 +281,17 @@ void Driver::hookNewASTPreCompilation(std::shared_ptr<hilti::Unit> unit) {
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}
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}
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void Driver::hookNewASTPostCompilation(std::shared_ptr<hilti::Unit> unit) {
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if ( unit->extension() != ".spicy" )
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return;
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bool Driver::hookNewASTPostCompilation(const hilti::Plugin& plugin, const std::shared_ptr<hilti::ASTRoot>& root) {
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if ( plugin.component != "Spicy" )
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return false;
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if ( unit->path().empty() )
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// Ignore modules constructed in memory.
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return;
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if ( ! _need_glue )
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return false;
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auto v = VisitorTypes(this, unit->id(), unit->path(), true);
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for ( auto i : v.walk(unit->module()) )
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v.dispatch(i);
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_need_glue = false;
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auto v = VisitorTypes(this, _glue.get(), true);
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hilti::visitor::visit(v, root, ".spicy");
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for ( auto&& t : v.types ) {
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SPICY_DEBUG(hilti::util::fmt(" Got type '%s' (post-compile)", t.id));
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@ -286,19 +299,14 @@ void Driver::hookNewASTPostCompilation(std::shared_ptr<hilti::Unit> unit) {
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hookNewType(t);
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}
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_glue->addSpicyModule(unit->id(), unit->path());
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if ( ! _glue->compile() )
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_error = hilti::result::Error("glue compilation failed");
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return true;
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}
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hilti::Result<hilti::Nothing> Driver::hookCompilationFinished(const hilti::Plugin& plugin) {
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if ( ! _need_glue )
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return hilti::Nothing();
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_need_glue = false;
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if ( _glue->compile() )
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return hilti::Nothing();
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else
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return hilti::result::Error("glue compilation failed");
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hilti::Result<hilti::Nothing> Driver::hookCompilationFinished(const std::shared_ptr<hilti::ASTRoot>& root) {
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return _error;
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}
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void Driver::hookInitRuntime() { ::spicy::rt::init(); }
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@ -32,7 +32,7 @@ class GlueCompiler;
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struct TypeInfo {
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hilti::ID id; /**< fully-qualified name of the type */
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hilti::Type type; /**< the type itself */
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hilti::QualifiedTypePtr type; /**< the type itself */
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hilti::declaration::Linkage linkage; /**< linkage of of the type's declaration */
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bool is_resolved = false; /**< true if we are far enough in processing that the type has been fully resolved */
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hilti::ID module_id; /**< name of module type is defined in */
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@ -102,7 +102,7 @@ public:
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if ( ! ti )
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return ti.error();
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if ( ! ti->type.isA<T>() )
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if ( ! ti->type->type()->isA<T>() )
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return hilti::result::Error(hilti::util::fmt("'%s' is not of expected type", id));
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return ti;
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@ -165,7 +165,7 @@ public:
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protected:
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/**
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* Hook executed for all type declarations encountered in a Spicy module.
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* Derived classes may override this to add custom processing. This hooks
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* Derived classes may override this to add custom processing. This hook
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* executes twices for each declaration: once before we compile the AST
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* (meaning types have not been resolved yet), and once after. The type
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* info's `is_resolved` field indicates which of the two we're in.
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@ -175,13 +175,13 @@ protected:
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virtual void hookNewType(const TypeInfo& ti) {}
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/** Overridden from HILTI driver. */
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void hookNewASTPreCompilation(std::shared_ptr<hilti::Unit> unit) override;
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void hookNewASTPreCompilation(const hilti::Plugin& plugin, const std::shared_ptr<hilti::ASTRoot>& root) override;
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/** Overridden from HILTI driver. */
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void hookNewASTPostCompilation(std::shared_ptr<hilti::Unit> unit) override;
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bool hookNewASTPostCompilation(const hilti::Plugin& plugin, const std::shared_ptr<hilti::ASTRoot>& root) override;
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/** Overridden from HILTI driver. */
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hilti::Result<hilti::Nothing> hookCompilationFinished(const hilti::Plugin& plugin) override;
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hilti::Result<hilti::Nothing> hookCompilationFinished(const std::shared_ptr<hilti::ASTRoot>& root) override;
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/** Overridden from HILTI driver. */
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void hookInitRuntime() override;
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@ -194,6 +194,7 @@ protected:
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std::vector<TypeInfo> _public_enums; // tracks Spicy enum types declared public, for automatic export
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bool _using_build_directory = false; // true if we're running out of the plugin's build directory
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bool _need_glue = true; // true if glue code has not yet been generated
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hilti::Result<hilti::Nothing> _error = hilti::Nothing(); // error encountered during compilation
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};
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} // namespace zeek::spicy
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File diff suppressed because it is too large
Load diff
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@ -18,12 +18,13 @@
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#include <hilti/ast/builder/builder.h>
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#include <hilti/ast/declarations/function.h>
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#include <hilti/ast/declarations/module.h>
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#include <hilti/ast/expression.h>
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#include <hilti/ast/module.h>
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#include <hilti/ast/type.h>
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#include <hilti/compiler/context.h>
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#include <hilti/compiler/driver.h>
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#include <spicy/ast/builder/builder.h>
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#include <spicy/ast/declarations/unit-hook.h>
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#include <spicy/ast/types/unit.h>
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@ -100,7 +101,7 @@ struct SpicyModule {
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std::set<hilti::rt::filesystem::path> evts; /**< EVT files that refer to this module. */
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// Generated code.
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std::optional<hilti::Module> spicy_module; /**< the ``BroHooks_*.spicy`` module. */
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hilti::ModulePtr spicy_module; /**< the ``BroHooks_*.spicy`` module. */
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};
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/** Representation of an event parsed from an EVT file. */
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@ -109,7 +110,7 @@ struct Event {
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hilti::rt::filesystem::path file; /**< The path of the *.evt file we parsed this from. */
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hilti::ID name; /**< The name of the event. */
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hilti::ID path; /**< The hook path as specified in the evt file. */
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std::vector<hilti::type::function::Parameter> parameters; /**< Event parameters specified in the evt file. */
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hilti::type::function::Parameters parameters; /**< Event parameters specified in the evt file. */
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std::string condition; /**< Condition that must be true for the event to trigger. */
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std::vector<std::string> exprs; /**< The argument expressions. */
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int priority; /**< Event/hook priority. */
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@ -118,7 +119,7 @@ struct Event {
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// Computed information.
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hilti::ID hook; /**< The name of the hook triggering the event. */
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hilti::ID unit; /**< The fully qualified name of the unit type. */
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std::optional<::spicy::type::Unit> unit_type; /**< The Spicy type of referenced unit. */
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::spicy::type::UnitPtr unit_type; /**< The Spicy type of referenced unit. */
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hilti::ID unit_module_id; /**< The name of the module the referenced unit is defined in. */
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hilti::rt::filesystem::path unit_module_path; /**< The path of the module that the referenced unit is defined in. */
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std::shared_ptr<glue::SpicyModule>
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@ -127,8 +128,8 @@ struct Event {
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// TODO: The following aren't set yet.
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// Code generation.
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std::optional<::spicy::declaration::UnitHook> spicy_hook; /**< The generated Spicy hook. */
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std::optional<hilti::declaration::Function> hilti_raise; /**< The generated HILTI raise() function. */
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::spicy::type::unit::item::UnitHookPtr spicy_hook; /**< The generated Spicy hook. */
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std::shared_ptr<hilti::declaration::Function> hilti_raise; /**< The generated HILTI raise() function. */
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std::vector<ExpressionAccessor> expression_accessors; /**< One HILTI function per expression to access the value. */
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};
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@ -162,6 +163,18 @@ public:
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/** Destructor. */
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virtual ~GlueCompiler();
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/**
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* Returns the AST context in use. Only available once the driver has
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* initialized the glue compiler.
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*/
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auto* context() { return _driver->context()->astContext().get(); }
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/**
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* Returns the AST builder in use. Only available once the driver has
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* initialized the glue compiler.
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*/
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auto* builder() { return static_cast<::spicy::Builder*>(_driver->builder()); }
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/** Parses an `*.evt` file, without generating any code yet. */
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bool loadEvtFile(hilti::rt::filesystem::path& path);
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@ -199,19 +212,19 @@ public:
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*/
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ExportedField exportForField(const hilti::ID& zeek_id, const hilti::ID& field_id) const;
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using ZeekTypeCache = std::map<hilti::ID, hilti::Expression>;
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using ZeekTypeCache = std::map<hilti::ID, hilti::ExpressionPtr>;
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/**
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* Generates code to convert a HILTI type to a corresponding Zeek type at
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* runtime. The code is added to the given body.
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*/
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hilti::Result<hilti::Nothing> createZeekType(const hilti::Type& t, const hilti::ID& id,
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hilti::builder::Builder* body, ZeekTypeCache* cache) const;
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hilti::Result<hilti::Nothing> createZeekType(const hilti::QualifiedTypePtr& t, const hilti::ID& id,
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||||
::spicy::Builder* builder, ZeekTypeCache* cache) const;
|
||||
|
||||
/** Return type for `recordField()`. */
|
||||
struct RecordField {
|
||||
hilti::ID id; /**< name of record field */
|
||||
hilti::Type type; /**< Spicy-side type object */
|
||||
hilti::QualifiedTypePtr type; /**< Spicy-side type object */
|
||||
bool is_optional; /**< true if field is optional */
|
||||
bool is_anonymous; /**< true if field is annymous */
|
||||
};
|
||||
|
|
@ -223,13 +236,13 @@ public:
|
|||
* @param unit the unit type to retrieve fields for
|
||||
* @return list of fields
|
||||
*/
|
||||
static std::vector<RecordField> recordFields(const ::spicy::type::Unit& unit);
|
||||
static std::vector<RecordField> recordFields(const ::spicy::type::Unit* unit);
|
||||
|
||||
protected:
|
||||
friend class Driver;
|
||||
|
||||
/** Called by driver to initialized a provided glue compiler. */
|
||||
void Init(Driver* driver, int zeek_version);
|
||||
void init(Driver* driver, int zeek_version);
|
||||
|
||||
private:
|
||||
/**
|
||||
|
|
@ -269,8 +282,8 @@ private:
|
|||
|
||||
std::map<hilti::ID, std::shared_ptr<glue::SpicyModule>> _spicy_modules;
|
||||
|
||||
std::vector<std::pair<hilti::ID, std::optional<hilti::ID>>>
|
||||
_imports; /**< imports from EVT files, with ID and optional scope */
|
||||
std::vector<std::pair<hilti::ID, hilti::ID>>
|
||||
_imports; /**< imports from EVT files, with ID and scope; latter is optional and can be empty */
|
||||
std::map<hilti::ID, glue::Export> _exports; /**< exports from EVT files */
|
||||
std::vector<glue::Event> _events; /**< events parsed from EVT files */
|
||||
std::vector<glue::ProtocolAnalyzer> _protocol_analyzers; /**< protocol analyzers parsed from EVT files */
|
||||
|
|
|
|||
|
|
@ -115,7 +115,7 @@ static hilti::Result<Nothing> parseOptions(int argc, char** argv, hilti::driver:
|
|||
}
|
||||
|
||||
case 'g': {
|
||||
driver_options->global_optimizations = false;
|
||||
compiler_options->global_optimizations = false;
|
||||
break;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,3 +1,3 @@
|
|||
### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
|
||||
[error] <...>/event-args-fail.evt:2: signature for hook must be: %error or %error(err: string)
|
||||
[error] <Spicy Plugin for Zeek>: aborting after errors
|
||||
[error] <Spicy support for Zeek>: aborting after errors
|
||||
|
|
|
|||
|
|
@ -1,3 +1,3 @@
|
|||
### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
|
||||
[error] <...>/event-args-fail.evt:2: signature for hook must be: %error or %error(err: string)
|
||||
[error] <Spicy Plugin for Zeek>: aborting after errors
|
||||
[error] <Spicy support for Zeek>: aborting after errors
|
||||
|
|
|
|||
|
|
@ -3,4 +3,4 @@
|
|||
[error] unknown type 'Test::DOES_NOT_EXIST' exported
|
||||
[error] <...>/foo.spicy:3:1-5:2: cannot export Spicy type 'Test::X': type is self-recursive
|
||||
[error] <...>/foo.spicy:11:1-13:2: cannot export Spicy type 'Test::Z': can only convert tuple types with all-named fields to Zeek
|
||||
[error] <Spicy Plugin for Zeek>: aborting after errors
|
||||
[error] <Spicy support for Zeek>: aborting after errors
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
### BTest baseline data generated by btest-diff. Do not edit. Use "btest -U/-u" to update. Requires BTest >= 0.63.
|
||||
[error] <...>/foo.spicy:3:1-5:2: type 'Test::A' does not have field 'does_not_exist'
|
||||
[error] <...>/foo.spicy:3:1-5:2: type 'Test::A' does not have field 'does_not_exist'
|
||||
[error] <Spicy Plugin for Zeek>: aborting after errors
|
||||
[error] <Spicy support for Zeek>: aborting after errors
|
||||
|
|
|
|||
|
|
@ -3,11 +3,11 @@
|
|||
# Profiling
|
||||
#
|
||||
#name count
|
||||
hilti/func/SSH::Banner::__on_0x25_done 2
|
||||
hilti/func/SSH::Banner::__parse_SSH_Banner_stage2 2
|
||||
hilti/func/SSH::Banner::__parse_stage1 2
|
||||
hilti/func/SSH::Banner::parse1 2
|
||||
hilti/func/SSH::__register_SSH_Banner 1
|
||||
hilti/func/spicy_hooks_SSH::SSH::Banner::__on_0x25_done 2
|
||||
hilti/total 1
|
||||
spicy/prepare/stream/SSH::Banner 2
|
||||
spicy/unit/SSH::Banner 2
|
||||
|
|
|
|||
|
|
@ -5,5 +5,5 @@
|
|||
[i=4, s=<uninitialized>]
|
||||
[zeek] [SPICY_SSH/3/orig] -> event ssh::banner((1, b"OpenSSH_3.8.1p1"))
|
||||
[zeek] [SPICY_SSH/3/orig] -> event ssh::banner((2, b"OpenSSH_3.8.1p1"))
|
||||
[zeek] [SPICY_SSH/3/orig] -> event ssh::banner((3, <error: n/a>))
|
||||
[zeek] [SPICY_SSH/3/orig] -> event ssh::banner((3, b""))
|
||||
[zeek] [SPICY_SSH/3/orig] -> event ssh::banner((4, Null))
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@ public type Banner = unit {
|
|||
dash : /-/;
|
||||
software: /[^\r\n]*/;
|
||||
|
||||
unset_field: uint64 if ( False );
|
||||
unset_field: bytes &eod if ( False );
|
||||
|
||||
on %done { zeek::confirm_protocol(); }
|
||||
};
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue