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new: add capture_open/capture_close hooks
Signed-off-by: Gianmatteo Palmieri <[email protected]>
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88 changes: 88 additions & 0 deletions
88
include/falcosecurity/internal/plugin_mixin_capture_listening.h
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| // SPDX-License-Identifier: Apache-2.0 | ||
| /* | ||
| Copyright (C) 2023 The Falco Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| #pragma once | ||
| #include <falcosecurity/event_reader.h> | ||
| #include <falcosecurity/events/decoders.h> | ||
| #include <falcosecurity/internal/deps.h> | ||
| #include <falcosecurity/types.h> | ||
| #include <string> | ||
| #include <type_traits> | ||
| #include <vector> | ||
|
|
||
| namespace falcosecurity | ||
| { | ||
| namespace _internal | ||
| { | ||
| template<class Plugin, class Base> | ||
| class plugin_mixin_capture_listening : public Base | ||
| { | ||
| static_assert(std::has_virtual_destructor<Plugin>::value, | ||
| "Plugin type must have a virtual destructor"); | ||
|
|
||
| public: | ||
| plugin_mixin_capture_listening() = default; | ||
| plugin_mixin_capture_listening(plugin_mixin_capture_listening&&) = default; | ||
| plugin_mixin_capture_listening& | ||
| operator=(plugin_mixin_capture_listening&&) = default; | ||
| plugin_mixin_capture_listening(const plugin_mixin_capture_listening&) = | ||
| default; | ||
| plugin_mixin_capture_listening& | ||
| operator=(const plugin_mixin_capture_listening&) = default; | ||
| virtual ~plugin_mixin_capture_listening() = default; | ||
|
|
||
| FALCOSECURITY_INLINE | ||
| ss_plugin_rc capture_open(const ss_plugin_capture_listen_input* i) | ||
| { | ||
| static_assert( | ||
| std::is_same<bool (Plugin::*)(const capture_listen_input&), | ||
| decltype(&Plugin::capture_open)>::value, | ||
| "expected signature: bool " | ||
| "capture_open(const capture_listen_input&)"); | ||
| FALCOSECURITY_CATCH_ALL(Base::m_last_err_storage, { | ||
| capture_listen_input in(i); | ||
| if(!Plugin::capture_open(in)) | ||
| { | ||
| return ss_plugin_rc::SS_PLUGIN_FAILURE; | ||
| } | ||
| return ss_plugin_rc::SS_PLUGIN_SUCCESS; | ||
| }); | ||
| return ss_plugin_rc::SS_PLUGIN_FAILURE; | ||
| } | ||
|
|
||
| FALCOSECURITY_INLINE | ||
| ss_plugin_rc capture_close(const ss_plugin_capture_listen_input* i) | ||
| { | ||
| static_assert( | ||
| std::is_same<bool (Plugin::*)(const capture_listen_input&), | ||
| decltype(&Plugin::capture_close)>::value, | ||
| "expected signature: bool " | ||
| "capture_close(const capture_listen_input&)"); | ||
| FALCOSECURITY_CATCH_ALL(Base::m_last_err_storage, { | ||
| capture_listen_input in(i); | ||
| if(!Plugin::capture_close(in)) | ||
| { | ||
| return ss_plugin_rc::SS_PLUGIN_FAILURE; | ||
| } | ||
| return ss_plugin_rc::SS_PLUGIN_SUCCESS; | ||
| }); | ||
| return ss_plugin_rc::SS_PLUGIN_FAILURE; | ||
| } | ||
| }; | ||
| }; // namespace _internal | ||
| }; // namespace falcosecurity |
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