github/falco
1
0
Fork 0
mirror of https://github.com/falcosecurity/falco.git synced 2025-09-17 23:37:51 +00:00
Code Issues Projects Releases Wiki Activity

update(userspace/engine): support comparins with right-hand fields

Browse Source 
Signed-off-by: Jason Dellaluce <jasondellaluce@gmail.com>
This commit is contained in:
Jason Dellaluce
2024-03-07 12:42:13 +00:00
committed by poiana
parent ed22e94292
commit bc078f1f63
2 changed files with 8 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
userspace/engine/filter_details_resolver.cpp
View File

@@ -38,6 +38,7 @@ void filter_details::reset()
operators.clear();
lists.clear();
evtnames.clear();
transformers.clear();
}
void filter_details_resolver::run(ast::expr* filter, filter_details& details)
@@ -94,13 +95,16 @@ void filter_details_resolver::visitor::visit(ast::list_expr* e)
void filter_details_resolver::visitor::visit(ast::binary_check_expr* e)
{
m_last_node_field_name.clear();
m_expect_evtname = false;
m_expect_list = false;
e->left->accept(this);
if (m_last_node_field_name.empty())
{
throw std::runtime_error("can't find field info in binary check expression");
}
m_details.fields.insert(m_last_node_field_name);
m_details.operators.insert(e->op);
m_expect_list = true;
m_expect_evtname = m_last_node_field_name == "evt.type" || m_last_node_field_name == "evt.asynctype";
e->right->accept(this);
@@ -140,9 +144,11 @@ void filter_details_resolver::visitor::visit(ast::value_expr* e)
void filter_details_resolver::visitor::visit(ast::field_expr* e)
{
m_last_node_field_name = get_field_name(e->field, e->arg);
m_details.fields.insert(m_last_node_field_name);
}
void filter_details_resolver::visitor::visit(ast::field_transformer_expr* e)
{
m_details.transformers.insert(e->transformer);
e->value->accept(this);
}

1
userspace/engine/filter_details_resolver.h
View File

@@ -34,6 +34,7 @@ struct filter_details
std::unordered_set<std::string> operators;
std::unordered_set<std::string> lists;
std::unordered_set<std::string> evtnames;
std::unordered_set<std::string> transformers;
void reset();
};