aegis-dos-protection/test/PacketContainer_test.cpp
2021-10-24 12:52:16 +02:00

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#include <catch2/catch.hpp>
#include <boost/log/trivial.hpp>
#include <rte_mbuf.h>
#include "Definitions.hpp"
#include "PacketDissection/PacketContainer.hpp"
#include "PacketDissection/PacketInfo.hpp"
#include "PacketDissection/PacketInfoCreator.hpp"
#include "PacketDissection/PacketInfoIpv4Icmp.hpp"
#include "PacketDissection/PacketInfoIpv4Tcp.hpp"
#include "PacketDissection/PacketInfoIpv4Udp.hpp"
#include "PacketDissection/PacketInfoIpv6Icmp.hpp"
#include "PacketDissection/PacketInfoIpv6Tcp.hpp"
#include "PacketDissection/PacketInfoIpv6Udp.hpp"
TEST_CASE("PacketContainer", "[]") {
// === I N I T ===//
uint16_t inside_port = 0;
uint16_t outside_port = 1;
struct rte_mempool mbuf_pool_struct;
struct rte_mempool* mbuf_pool = &mbuf_pool_struct;
CHECK(mbuf_pool != nullptr);
PacketContainer* pkt_container =
new PacketContainer(mbuf_pool, inside_port, outside_port, 0, 0);
CHECK(pkt_container != nullptr);
// === S E C T I O N S == //
SECTION("get_empty_packet", "[]") {
SECTION("default", "[]") {
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 0);
PacketInfo* pkt_info = pkt_container->get_empty_packet();
CHECK(pkt_info != nullptr);
CHECK(pkt_info->get_mbuf() != nullptr);
CHECK(pkt_info->get_type() == IPv4TCP);
CHECK(pkt_container->get_total_number_of_packets() >=
pkt_container->get_number_of_polled_packets());
CHECK(pkt_container->get_total_number_of_packets() == 1);
CHECK(pkt_container->get_number_of_polled_packets() == 0);
}
SECTION("IPv4TCP", "[]") {
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 0);
PacketInfo* pkt_info = pkt_container->get_empty_packet(IPv4TCP);
CHECK(pkt_info != nullptr);
CHECK(pkt_info->get_mbuf() != nullptr);
CHECK(pkt_info->get_type() == IPv4TCP);
CHECK(pkt_container->get_total_number_of_packets() >=
pkt_container->get_number_of_polled_packets());
CHECK(pkt_container->get_total_number_of_packets() == 1);
CHECK(pkt_container->get_number_of_polled_packets() == 0);
}
}
SECTION("create more packets than burst size", "[]") {
SECTION("fill till BURST_SIZE", "[]") {
for (int i = 0; i < BURST_SIZE; ++i) {
PacketInfo* pkt_info = pkt_container->get_empty_packet();
CHECK(pkt_info != nullptr);
}
CHECK(pkt_container->get_total_number_of_packets() == BURST_SIZE);
}
SECTION("fill till BURST_SIZE + 1", "[]") {
for (int i = 0; i < BURST_SIZE + 1; ++i) {
PacketInfo* pkt_info = pkt_container->get_empty_packet();
CHECK(pkt_info != nullptr);
}
CHECK(pkt_container->get_total_number_of_packets() ==
BURST_SIZE + 1);
}
CHECK(pkt_container->get_total_number_of_packets() >=
pkt_container->get_number_of_polled_packets());
}
SECTION("get_packet_at_index", "[]") {
SECTION("general", "[]") {
// add empty packet
PacketInfo* pkt_info_0 = pkt_container->get_empty_packet();
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 1);
PacketInfo* pkt_info_1 = pkt_container->get_packet_at_index(
pkt_container->get_total_number_of_packets() - 1);
CHECK(pkt_info_0 == pkt_info_1);
CHECK(pkt_info_1 != nullptr);
CHECK(pkt_info_1->get_mbuf() != nullptr);
CHECK(pkt_info_1->get_type() == IPv4TCP);
CHECK(pkt_container->get_total_number_of_packets() >=
pkt_container->get_number_of_polled_packets());
CHECK_NOTHROW(pkt_container->get_packet_at_index(
pkt_container->get_total_number_of_packets() - 1));
CHECK_THROWS(pkt_container->get_packet_at_index(
pkt_container->get_total_number_of_packets()));
}
SECTION("test out of bounds error", "[]") {
for (int i = 0; i < int(BURST_SIZE / 2); ++i) {
pkt_container->get_empty_packet();
}
CHECK(pkt_container->get_total_number_of_packets() ==
int(BURST_SIZE / 2));
for (int i = 0; i < int(BURST_SIZE / 2); ++i) {
CHECK_NOTHROW(pkt_container->get_packet_at_index(i));
}
for (int i = int(BURST_SIZE / 2); i < BURST_SIZE; ++i) {
CHECK_THROWS(pkt_container->get_packet_at_index(i));
}
CHECK_THROWS(pkt_container->get_packet_at_index(
pkt_container->get_total_number_of_packets()));
CHECK_NOTHROW(pkt_container->get_packet_at_index(
pkt_container->get_total_number_of_packets() - 1));
}
}
SECTION("take_packet and add_packet", "[]") {
PacketInfo* pkt_info_0 = pkt_container->get_empty_packet();
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 1);
PacketInfo* pkt_info_1 = pkt_container->take_packet(0);
CHECK(pkt_info_0 == pkt_info_1);
CHECK(pkt_info_1 != nullptr);
CHECK(pkt_info_1->get_mbuf() != nullptr);
CHECK(pkt_container->get_packet_at_index(0) == nullptr);
CHECK(pkt_container->get_total_number_of_packets() == 1);
CHECK(pkt_container->get_total_number_of_packets() >=
pkt_container->get_number_of_polled_packets());
pkt_container->add_packet(pkt_info_1);
CHECK(pkt_container->get_total_number_of_packets() >=
pkt_container->get_number_of_polled_packets());
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 2);
CHECK(pkt_container->get_packet_at_index(1) == pkt_info_1);
CHECK(pkt_container->get_packet_at_index(0) == nullptr);
}
SECTION("drop_packet", "[]") {
SECTION("default") {
PacketInfo* pkt_info_0 = pkt_container->get_empty_packet();
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 1);
pkt_container->drop_packet(0);
CHECK(pkt_container->get_total_number_of_packets() >=
pkt_container->get_number_of_polled_packets());
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 1);
CHECK(pkt_container->get_packet_at_index(0) == nullptr);
CHECK_NOTHROW(pkt_container->drop_packet(0));
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 1);
CHECK(pkt_container->get_packet_at_index(0) == nullptr);
}
}
SECTION("poll_packets", "[]") {
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 0);
uint16_t nb_pkts_polled;
pkt_container->poll_packets(nb_pkts_polled);
CHECK(pkt_container->get_number_of_polled_packets() > 0);
CHECK(pkt_container->get_total_number_of_packets() ==
pkt_container->get_number_of_polled_packets());
CHECK(nb_pkts_polled == pkt_container->get_number_of_polled_packets());
CHECK_NOTHROW(pkt_container->get_packet_at_index(nb_pkts_polled - 1));
PacketInfo* pkt_info =
pkt_container->get_packet_at_index(nb_pkts_polled - 1);
CHECK(pkt_info != nullptr);
CHECK(pkt_info->get_mbuf() != nullptr);
}
SECTION("send_packets", "[]") {
SECTION("do not drop") {
SECTION("send created packets") {
PacketInfo* pkt_info = pkt_container->get_empty_packet();
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 1);
}
SECTION("send polled packets") {
uint16_t nb_polled_pkts;
pkt_container->poll_packets(nb_polled_pkts);
CHECK(nb_polled_pkts > 0);
}
SECTION("send polled and created packets") {
uint16_t nb_polled_pkts;
pkt_container->poll_packets(nb_polled_pkts);
CHECK(nb_polled_pkts > 0);
PacketInfo* pkt_info = pkt_container->get_empty_packet();
CHECK(pkt_container->get_total_number_of_packets() >
pkt_container->get_number_of_polled_packets());
}
pkt_container->send_packets();
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 0);
}
SECTION("drop and send created packets") {
const int PKTS_TO_POLL = 4;
int nb_pkts_to_drop = -1;
for (int i = 0; i < PKTS_TO_POLL; ++i) {
pkt_container->get_empty_packet();
}
CHECK(pkt_container->get_total_number_of_packets() >
pkt_container->get_number_of_polled_packets());
CHECK(pkt_container->get_total_number_of_packets() == PKTS_TO_POLL);
SECTION("drop first packet") {
nb_pkts_to_drop = 1;
CHECK(pkt_container->get_nb_mbufs_in_mbuf_arr()[0] ==
PKTS_TO_POLL);
CHECK(pkt_container->get_nb_pkts_dropped() == 0);
pkt_container->drop_packet(0);
CHECK(pkt_container->get_nb_pkts_dropped() == 1);
}
SECTION("drop second packet") {
nb_pkts_to_drop = 1;
CHECK(pkt_container->get_nb_mbufs_in_mbuf_arr()[0] ==
PKTS_TO_POLL);
CHECK(pkt_container->get_nb_pkts_dropped() == 0);
pkt_container->drop_packet(1);
CHECK(pkt_container->get_nb_pkts_dropped() == 1);
}
SECTION("drop second and third packet") {
nb_pkts_to_drop = 2;
CHECK(pkt_container->get_nb_mbufs_in_mbuf_arr()[0] ==
PKTS_TO_POLL);
CHECK(pkt_container->get_nb_pkts_dropped() == 0);
pkt_container->drop_packet(1);
pkt_container->drop_packet(2);
CHECK(pkt_container->get_nb_pkts_dropped() == 2);
}
SECTION("drop last packet") {
nb_pkts_to_drop = 1;
CHECK(pkt_container->get_nb_mbufs_in_mbuf_arr()[0] ==
PKTS_TO_POLL);
CHECK(pkt_container->get_nb_pkts_dropped() == 0);
pkt_container->drop_packet(PKTS_TO_POLL - 1);
CHECK(pkt_container->get_nb_pkts_dropped() == 1);
}
pkt_container->reorder_mbuf_arrays();
CHECK(pkt_container->get_nb_mbufs_in_mbuf_arr()[0] ==
PKTS_TO_POLL - nb_pkts_to_drop);
pkt_container->send_packets();
CHECK(pkt_container->get_number_of_polled_packets() == 0);
CHECK(pkt_container->get_total_number_of_packets() == 0);
}
}
// === D E L E T E O B J E C T S ===//
delete pkt_container;
pkt_container = nullptr;
}