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update(userspace/engine): add event codes to json output

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Signed-off-by: Lorenzo Susini <susinilorenzo1@gmail.com>
This commit is contained in:
Lorenzo Susini 2023-05-16 10:32:59 +00:00 committed by poiana
parent 46cbc3c589
commit e11b4c4430
3 changed files with 32 additions and 1 deletions
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25
userspace/engine/falco_engine.cpp
View File

@ -601,6 +601,31 @@ Json::Value falco_engine::get_json_rule_details(const falco_rule& r, filter_deta
}
output["lists"] = lists;
if (rule_info->source == falco_common::syscall_source)
{
Json::Value events = Json::arrayValue;
std::unordered_set<std::string> evts;
for(const auto &e : rule_info->evttypes)
{
auto evt_info = libsinsp::events::info(e);
auto res = evts.insert(std::string(evt_info->name));
if(res.second)
{
events.append(evt_info->name);
}
}
output["events"] = events;
}
output["source"] = rule_info->source;
Json::Value tags = Json::arrayValue;
for(const auto &t : rule_info->tags)
{
tags.append(t);
}
output["tags"] = tags;
details.reset();
return output;

1
userspace/engine/rule_loader.h
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@ -456,6 +456,7 @@ namespace rule_loader
std::set<std::string> tags;
std::vector<rule_exception_info> exceptions;
falco_common::priority_type priority;
libsinsp::events::set<ppm_event_code> evttypes;
bool enabled;
bool warn_evttypes;
bool skip_if_unknown_filter;

7
userspace/engine/rule_loader_compiler.cpp
View File

@ -386,7 +386,11 @@ void rule_loader::compiler::compile_rule_infos(
std::string err, condition;
std::set<falco::load_result::load_result::warning_code> warn_codes;
filter_warning_resolver warn_resolver;
for (auto &r : col.rules())
// note: cast away the const qualifier in the for loop
// this is needed because we want to store information about evttypes
// used by any rules, which might come in handy when describing rules.
for (auto &r : const_cast<indexed_vector<rule_info>&>(col.rules()))
{
// skip the rule if below the minimum priority
if (r.priority > cfg.min_priority)
@ -505,6 +509,7 @@ void rule_loader::compiler::compile_rule_infos(
"Rule matches too many evt.type values. This has a significant performance penalty.",
r.ctx);
}
r.evttypes = evttypes;
}
}
}