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#include <unistd.h>
#include <stddef.h>
#include <getopt.h>
#include <arpa/inet.h>
#include <gtest/gtest.h>
#include <pcap/pcap.h>
#ifdef __cplusplus
extern "C"
{
#endif
#include "stellar/stellar.h"
#include "monitor/monitor_private.h"
#include "sds/sds.h"
#ifdef __cplusplus
}
#endif
#define TEST_PKT_DUMP_FILE_NAME "__gtest_stm_pkt_dump.pcap"
struct async_cmd_args
{
pthread_t tid;
const char *cmd;
int cmd_array_size;
sds *cmd_result_array;
int wait_thread_create_time_ms;
};
static sds *stellar_cli_exec_cmd(const char *command_str, int *result_size)
{
int ret;
sds *cmd_result_array = NULL;
char result[4096] = {};
FILE *fp = popen(command_str, "r");
if (NULL == fp)
{
return NULL;
}
ret = fread(result, 1, sizeof(result), fp);
if (ret > 0)
{
cmd_result_array = sdssplitlen(result, strlen(result), "\r\n", 1, result_size);
}
pclose(fp);
return cmd_result_array;
}
static void *async_cmd_run_thread(void *arg)
{
struct async_cmd_args *async_arg = (struct async_cmd_args *)arg;
async_arg->cmd_result_array = stellar_cli_exec_cmd(async_arg->cmd, &async_arg->cmd_array_size);
return NULL;
}
static void async_cmd_run(struct async_cmd_args *arg)
{
pthread_create(&arg->tid, NULL, async_cmd_run_thread, arg);
usleep(arg->wait_thread_create_time_ms * 1000);
}
static void async_cmd_wait(struct async_cmd_args *async_arg)
{
pthread_join(async_arg->tid, NULL);
}
// class MonitorServerMock : public testing::Test
// {
// public:
// static struct stellar *st;
// static pthread_t tid;
// static int thread_count;
// static int cmd_result_line_num;
// static int cmd_array_size;
// static sds *cmd_result_array;
// protected:
// static void SetUpTestCase()
// {
// printf("Gtest Stm Server: Setup Test Case Env...\n");
// st = stellar_new("./conf/stellar.toml", "./plugin/spec.toml", "./conf/log.toml");
// assert(st != NULL);
// }
// static void TearDownTestCase()
// {
// printf("Gtest Stm Server: Tear Down Test Case Env...\n");
// stellar_free(st);
// }
// };
// pthread_t MonitorServerMock::tid;
// int MonitorServerMock::thread_count;
// int MonitorServerMock::cmd_result_line_num;
// struct stellar *MonitorServerMock::st;
// int MonitorServerMock::cmd_array_size;
// sds *MonitorServerMock::cmd_result_array;
static int get_local_pcap_packet_number(const char *filename)
{
char cmd_buf[256] = {};
snprintf(cmd_buf, sizeof(cmd_buf), "tcpdump -r %s -n -nn -t -q | wc -l", filename);
int cmd_res_size;
sds *cmd_res = stellar_cli_exec_cmd(cmd_buf, &cmd_res_size);
int pkt_num = 0;
for (int i = 0; i < cmd_res_size; i++)
{
if (strstr(cmd_res[i], "reading from file") != NULL)
{
continue;
}
if (strstr(cmd_res[i], "tcpdump") != NULL)
{
continue;
}
if (isdigit(cmd_res[i][0]))
{
pkt_num = atoi(cmd_res[i]);
}
}
sdsfreesplitres(cmd_res, cmd_res_size);
return pkt_num;
}
static int get_netstat_num(const char *cmd)
{
int cmd_res_size;
sds *cmd_res = stellar_cli_exec_cmd(cmd, &cmd_res_size);
int pkt_num = 0;
for (int i = 0; i < cmd_res_size; i++)
{
if (isdigit(cmd_res[i][0]))
{
pkt_num = atoi(cmd_res[i]);
}
}
sdsfreesplitres(cmd_res, cmd_res_size);
return pkt_num;
}
TEST(MONITOR_PKT_DUMP, base)
{
struct async_cmd_args async_arg = {};
async_arg.wait_thread_create_time_ms = 100;
char cmd_buf[256] = {};
remove(TEST_PKT_DUMP_FILE_NAME);
const int expect_cap_pkt_num = 11;
struct stellar *st = stellar_new("./conf/stellar.toml");
ASSERT_TRUE(st != NULL);
snprintf(cmd_buf, sizeof(cmd_buf), "./stellar-dump -n -nn -c %d -s0 -w %s", expect_cap_pkt_num, TEST_PKT_DUMP_FILE_NAME);
async_arg.cmd = cmd_buf;
async_cmd_run(&async_arg);
stellar_run(st);
async_cmd_wait(&async_arg);
sdsfreesplitres(async_arg.cmd_result_array, async_arg.cmd_array_size);
int actual_cap_num = get_local_pcap_packet_number(TEST_PKT_DUMP_FILE_NAME);
EXPECT_EQ(expect_cap_pkt_num, actual_cap_num);
stellar_free(st);
}
TEST(MONITOR_PKT_DUMP, arg_ip_port)
{
struct async_cmd_args async_arg = {};
async_arg.wait_thread_create_time_ms = 100;
char cmd_buf[256] = {};
remove(TEST_PKT_DUMP_FILE_NAME);
struct stellar *st = stellar_new("./conf/stellar.toml");
ASSERT_TRUE(st != NULL);
const int expect_cap_pkt_num = 13;
snprintf(cmd_buf, sizeof(cmd_buf), "./stellar-dump -n -nn -c %d -i 127.0.0.1 -P 80 -s0 -w %s", expect_cap_pkt_num, TEST_PKT_DUMP_FILE_NAME);
async_arg.cmd = cmd_buf;
async_cmd_run(&async_arg);
stellar_run(st);
async_cmd_wait(&async_arg);
sdsfreesplitres(async_arg.cmd_result_array, async_arg.cmd_array_size);
int actual_cap_num = get_local_pcap_packet_number(TEST_PKT_DUMP_FILE_NAME);
EXPECT_EQ(expect_cap_pkt_num, actual_cap_num);
stellar_free(st);
}
TEST(MONITOR_PKT_DUMP, arg_bpf)
{
struct async_cmd_args async_arg = {};
async_arg.wait_thread_create_time_ms = 100;
char cmd_buf[256] = {};
remove(TEST_PKT_DUMP_FILE_NAME);
struct stellar *st = stellar_new("./conf/stellar.toml");
ASSERT_TRUE(st != NULL);
const int expect_cap_pkt_num = 33;
snprintf(cmd_buf, sizeof(cmd_buf), "./stellar-dump -n -nn -c %d host 172.16.0.203 and host 172.100.15.25 and udp port 1935 and udp port 52043 -s0 -U -w %s", expect_cap_pkt_num, TEST_PKT_DUMP_FILE_NAME);
async_arg.cmd = cmd_buf;
async_cmd_run(&async_arg);
stellar_run(st);
async_cmd_wait(&async_arg);
sdsfreesplitres(async_arg.cmd_result_array, async_arg.cmd_array_size);
int actual_cap_num = get_local_pcap_packet_number(TEST_PKT_DUMP_FILE_NAME);
EXPECT_EQ(expect_cap_pkt_num, actual_cap_num);
stellar_free(st);
}
TEST(MONITOR_PKT_DUMP, all_args)
{
struct async_cmd_args async_arg = {};
async_arg.wait_thread_create_time_ms = 100;
char cmd_buf[256] = {};
remove(TEST_PKT_DUMP_FILE_NAME);
struct stellar *st = stellar_new("./conf/stellar.toml");
ASSERT_TRUE(st != NULL);
const int expect_cap_pkt_num = 33;
snprintf(cmd_buf, sizeof(cmd_buf), "./stellar-dump -n -nn -c %d -i 127.0.0.1 -P 80 -g host 172.16.0.203 and host 172.100.15.25 and udp port 1935 and udp port 52043 -s0 -U -w %s", expect_cap_pkt_num, TEST_PKT_DUMP_FILE_NAME);
async_arg.cmd = cmd_buf;
async_cmd_run(&async_arg);
stellar_run(st);
async_cmd_wait(&async_arg);
sdsfreesplitres(async_arg.cmd_result_array, async_arg.cmd_array_size);
int actual_cap_num = get_local_pcap_packet_number(TEST_PKT_DUMP_FILE_NAME);
EXPECT_EQ(expect_cap_pkt_num, actual_cap_num);
stellar_free(st);
}
TEST(MONITOR_PKT_DUMP, too_many_clients)
{
#define MAX_CLIENT_NUM 1000
struct async_cmd_args async_arg[MAX_CLIENT_NUM] = {};
char cmd_buf[256] = {};
const int expect_cap_pkt_num = 1;
remove(TEST_PKT_DUMP_FILE_NAME);
struct stellar *st = stellar_new("./conf/stellar.toml");
ASSERT_TRUE(st != NULL);
snprintf(cmd_buf, sizeof(cmd_buf), "./stellar-dump -n -nn -q -t -c 1 udp port 5005 and udp port 39627 -w /dev/null"); // the last udp packet
for (int i = 0; i < MAX_CLIENT_NUM; i++)
{
async_arg[i].wait_thread_create_time_ms = 0;
async_arg[i].cmd = cmd_buf;
async_cmd_run(&async_arg[i]);
}
struct async_cmd_args save_pcap_async_arg = {};
save_pcap_async_arg.wait_thread_create_time_ms = 100;
char save_pcap_cmd_buf[256] = {};
snprintf(save_pcap_cmd_buf, sizeof(save_pcap_cmd_buf), "./stellar-dump -n -nn -q -t -c %d udp port 5005 and udp port 39627 -s0 -U -w %s", expect_cap_pkt_num, TEST_PKT_DUMP_FILE_NAME);
save_pcap_async_arg.cmd = save_pcap_cmd_buf;
async_cmd_run(&save_pcap_async_arg);
/* todo: how do I make sure all stellar-dump are started? */
while (get_netstat_num("netstat -anup | grep stellar | wc -l") < MAX_CLIENT_NUM + 1)
{
printf("### wait for all stellar-dump starting...\n");
sleep(1);
}
stellar_run(st);
for (int i = 0; i < MAX_CLIENT_NUM; i++)
{
async_cmd_wait(&async_arg[i]);
sdsfreesplitres(async_arg[i].cmd_result_array, async_arg[i].cmd_array_size);
}
async_cmd_wait(&save_pcap_async_arg);
sdsfreesplitres(save_pcap_async_arg.cmd_result_array, save_pcap_async_arg.cmd_array_size);
int actual_cap_num = get_local_pcap_packet_number(TEST_PKT_DUMP_FILE_NAME);
EXPECT_EQ(expect_cap_pkt_num, actual_cap_num);
stellar_free(st);
}
int main(int argc, char **argv)
{
testing::InitGoogleTest(&argc, argv);
int ret = RUN_ALL_TESTS();
return ret;
}
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