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https://github.com/falcosecurity/falco.git
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aa073586f1
Clean up the handling of priority levels within rules. It used to be a mix of strings handled in various places. Now, in falco_common.h there's a consistent type for priority-as-number as well as a list of priority-as-string values. Priorities are passed around as numbers instead of strings. It's still permissive about capitalization. Also add the ability to load rules by severity. New falco config option "priority=<val>"/-o priority=<val> specifies the minimum priority level of rules that will be loaded. Add unit tests for same. The test suppresses INFO notifications for a rule/trace file combination that would otherwise generate them.
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
/*
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Copyright (C) 2016 Draios inc.
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This file is part of falco.
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falco is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation.
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falco is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with falco. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <set>
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#include "sinsp.h"
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#include "lua_parser.h"
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#include "falco_common.h"
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class falco_engine;
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class falco_rules
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{
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public:
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falco_rules(sinsp* inspector, falco_engine *engine, lua_State *ls);
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~falco_rules();
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void load_rules(const string &rules_content, bool verbose, bool all_events,
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std::string &extra, bool replace_container_info,
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falco_common::priority_type min_priority);
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void describe_rule(string *rule);
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static void init(lua_State *ls);
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static int clear_filters(lua_State *ls);
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static int add_filter(lua_State *ls);
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static int enable_rule(lua_State *ls);
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private:
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void clear_filters();
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void add_filter(string &rule, std::set<uint32_t> &evttypes, std::set<string> &tags);
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void enable_rule(string &rule, bool enabled);
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lua_parser* m_lua_parser;
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sinsp* m_inspector;
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falco_engine *m_engine;
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lua_State* m_ls;
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string m_lua_load_rules = "load_rules";
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string m_lua_ignored_syscalls = "ignored_syscalls";
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string m_lua_ignored_events = "ignored_events";
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string m_lua_events = "events";
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string m_lua_describe_rule = "describe_rule";
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};
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