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#include "test_utils.h"
#if 1
TEST(UDP_OVERLOAD, EVICT_OLD_SESS)
{
struct packet pkt;
struct session *sess = NULL;
struct session_manager_rte *sess_mgr_rte = NULL;
struct session_manager_stat *sess_mgr_stat = NULL;
struct session_manager_cfg _sess_mgr_cfg;
memcpy(&_sess_mgr_cfg, &sess_mgr_cfg, sizeof(struct session_manager_cfg));
_sess_mgr_cfg.tcp_session_max = RX_BURST_MAX * 2;
_sess_mgr_cfg.udp_session_max = RX_BURST_MAX * 2;
sess_mgr_rte = session_manager_rte_new(&_sess_mgr_cfg, 1);
EXPECT_TRUE(sess_mgr_rte != NULL);
// C2S REQ Packet
printf("\n=> Packet Parse: UDP C2S REQ packet\n");
memset(&pkt, 0, sizeof(pkt));
packet_parse(&pkt, (const char *)udp_pkt1_dns_req, sizeof(udp_pkt1_dns_req));
printf("<= Packet Parse: done\n\n");
// new session
for (uint32_t i = 0; i < _sess_mgr_cfg.udp_session_max; i++)
{
packet_overwrite_v4_saddr(&pkt, (struct in_addr *)&i);
EXPECT_TRUE(session_manager_rte_new_session(sess_mgr_rte, &pkt, 1));
}
printf("=> Session Manager: after add %lu new sessions\n", _sess_mgr_cfg.udp_session_max);
sess_mgr_stat = session_manager_rte_get_stat(sess_mgr_rte);
EXPECT_TRUE(sess_mgr_stat);
EXPECT_TRUE(sess_mgr_stat->udp_sess_used == _sess_mgr_cfg.udp_session_max);
EXPECT_TRUE(sess_mgr_stat->udp_sess_opening == RX_BURST_MAX);
EXPECT_TRUE(sess_mgr_stat->udp_sess_active == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closing == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closed == RX_BURST_MAX); // have evicted, have't free
EXPECT_TRUE(sess_mgr_stat->udp_sess_evicted == RX_BURST_MAX);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_table_full == 0);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_session_evicted == 0);
// evicted session
while (1)
{
sess = session_manager_rte_get_evicted_session(sess_mgr_rte);
if (sess)
{
session_manager_rte_free_session(sess_mgr_rte, sess);
}
else
{
break;
}
}
for (uint32_t i = 0; i < RX_BURST_MAX; i++)
{
packet_overwrite_v4_saddr(&pkt, (struct in_addr *)&i);
EXPECT_TRUE(session_manager_rte_lookup_session_by_packet(sess_mgr_rte, &pkt) == NULL);
EXPECT_TRUE(session_manager_rte_new_session(sess_mgr_rte, &pkt, 1) == NULL); // hit evicted session, can't renew session
}
printf("=> Session Manager: after readd %d evicted sessions\n", RX_BURST_MAX);
sess_mgr_stat = session_manager_rte_get_stat(sess_mgr_rte);
EXPECT_TRUE(sess_mgr_stat);
EXPECT_TRUE(sess_mgr_stat->udp_sess_used == RX_BURST_MAX);
EXPECT_TRUE(sess_mgr_stat->udp_sess_opening == RX_BURST_MAX);
EXPECT_TRUE(sess_mgr_stat->udp_sess_active == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closing == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closed == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_evicted == RX_BURST_MAX);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_table_full == 0);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_session_evicted == RX_BURST_MAX);
// evicted session timeout
uint32_t idx = 0;
packet_overwrite_v4_saddr(&pkt, (struct in_addr *)&idx);
EXPECT_TRUE(session_manager_rte_lookup_session_by_packet(sess_mgr_rte, &pkt) == NULL);
EXPECT_TRUE(session_manager_rte_new_session(sess_mgr_rte, &pkt, 1 + _sess_mgr_cfg.evicted_session_bloom_filter.time_window_ms));
printf("=> Session Manager: after evicted session timeout\n");
sess_mgr_stat = session_manager_rte_get_stat(sess_mgr_rte);
EXPECT_TRUE(sess_mgr_stat);
EXPECT_TRUE(sess_mgr_stat->udp_sess_used == RX_BURST_MAX + 1);
EXPECT_TRUE(sess_mgr_stat->udp_sess_opening == RX_BURST_MAX);
EXPECT_TRUE(sess_mgr_stat->udp_sess_active == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closing == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closed == 1); // have evicted, have't free
EXPECT_TRUE(sess_mgr_stat->udp_sess_evicted == RX_BURST_MAX + 1);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_table_full == 0);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_session_evicted == RX_BURST_MAX);
session_manager_rte_free(sess_mgr_rte);
}
#endif
#if 1
TEST(UDP_OVERLOAD, EVICT_NEW_SESS)
{
struct packet pkt;
struct session_manager_rte *sess_mgr_rte = NULL;
struct session_manager_stat *sess_mgr_stat = NULL;
struct session_manager_cfg _sess_mgr_cfg;
memcpy(&_sess_mgr_cfg, &sess_mgr_cfg, sizeof(struct session_manager_cfg));
_sess_mgr_cfg.tcp_session_max = RX_BURST_MAX * 2;
_sess_mgr_cfg.udp_session_max = RX_BURST_MAX * 2;
_sess_mgr_cfg.evict_old_on_udp_table_limit = 0;
sess_mgr_rte = session_manager_rte_new(&_sess_mgr_cfg, 1);
EXPECT_TRUE(sess_mgr_rte != NULL);
// C2S REQ Packet
printf("\n=> Packet Parse: UDP C2S REQ packet\n");
memset(&pkt, 0, sizeof(pkt));
packet_parse(&pkt, (const char *)udp_pkt1_dns_req, sizeof(udp_pkt1_dns_req));
printf("<= Packet Parse: done\n\n");
// new session
for (uint32_t i = 0; i < _sess_mgr_cfg.udp_session_max; i++)
{
packet_overwrite_v4_saddr(&pkt, (struct in_addr *)&i);
EXPECT_TRUE(session_manager_rte_new_session(sess_mgr_rte, &pkt, 1));
}
printf("=> Session Manager: after add %lu new sessions\n", _sess_mgr_cfg.udp_session_max);
sess_mgr_stat = session_manager_rte_get_stat(sess_mgr_rte);
EXPECT_TRUE(sess_mgr_stat);
EXPECT_TRUE(sess_mgr_stat->udp_sess_used == _sess_mgr_cfg.udp_session_max);
EXPECT_TRUE(sess_mgr_stat->udp_sess_opening == _sess_mgr_cfg.udp_session_max);
EXPECT_TRUE(sess_mgr_stat->udp_sess_active == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closing == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closed == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_evicted == 0);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_table_full == 0);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_session_evicted == 0);
// evicted session
EXPECT_TRUE(session_manager_rte_get_evicted_session(sess_mgr_rte) == NULL);
// table full, evict new session
for (uint32_t i = 0; i < RX_BURST_MAX; i++)
{
uint32_t idx = _sess_mgr_cfg.udp_session_max + i;
packet_overwrite_v4_saddr(&pkt, (struct in_addr *)&idx);
EXPECT_TRUE(session_manager_rte_lookup_session_by_packet(sess_mgr_rte, &pkt) == NULL);
EXPECT_TRUE(session_manager_rte_new_session(sess_mgr_rte, &pkt, 1) == NULL);
}
printf("=> Session Manager: after readd %d evicted session\n", RX_BURST_MAX);
sess_mgr_stat = session_manager_rte_get_stat(sess_mgr_rte);
EXPECT_TRUE(sess_mgr_stat);
EXPECT_TRUE(sess_mgr_stat->udp_sess_used == _sess_mgr_cfg.udp_session_max);
EXPECT_TRUE(sess_mgr_stat->udp_sess_opening == _sess_mgr_cfg.udp_session_max);
EXPECT_TRUE(sess_mgr_stat->udp_sess_active == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closing == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_closed == 0);
EXPECT_TRUE(sess_mgr_stat->udp_sess_evicted == 0);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_table_full == RX_BURST_MAX);
EXPECT_TRUE(sess_mgr_stat->udp_pkts_bypass_session_evicted == 0);
session_manager_rte_free(sess_mgr_rte);
}
#endif
int main(int argc, char **argv)
{
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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