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eed5b906a8
In order to support external rules loaders that may extend the falco rules format with new top level objects, move away from providing individual filter objects to the filter_ruleset via calls to add(). Instead, pass the entire compile output returned by the compiler to the ruleset using a new method add_compile_output(). Custom users can then cast back the compile output to the appropriate derived class for use in the ruleset. Move the declaration of the compile output to a standalone class so it can be used by rulesets without including the entire rules loader header files, and add a new factory method new_compile_output() to the compiler so it can create a derived class if necessary. This change is backwards-compatible with existing rulesets, as the default implementation of add_compile_output() simply iterates over rules and calls add() for each rule. This change also speeds up rule loading. Previously, each rule condition was compiled twice: 1. First, in the compiler, to see if it was valid. 2. Second, in the falco engine before providing each rule to the ruleset. Add the compiled filter to the falco_rule object instead of throwing it away in the compiler. Signed-off-by: Mark Stemm <mark.stemm@gmail.com>
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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/*
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Copyright (C) 2023 The Falco Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#pragma once
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#include "indexed_vector.h"
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#include "falco_rule.h"
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namespace rule_loader
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{
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struct compile_output
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{
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compile_output() = default;
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virtual ~compile_output() = default;
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compile_output(compile_output&&) = default;
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compile_output& operator = (compile_output&&) = default;
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compile_output(const compile_output&) = default;
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compile_output& operator = (const compile_output&) = default;
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indexed_vector<falco_list> lists;
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indexed_vector<falco_macro> macros;
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indexed_vector<falco_rule> rules;
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};
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};
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