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toxcore/auto_tests/forwarding_test.c
iphydf 4e2dba4d9f
chore: Reformat sources with astyle. 
Restyled astyle is fixed now.
2024-02-02 01:31:32 +00:00

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#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include "../toxcore/tox.h"
#include "../toxcore/announce.h"
#include "../testing/misc_tools.h"
#include "../toxcore/mono_time.h"
#include "../toxcore/forwarding.h"
#include "../toxcore/net_crypto.h"
#include "../toxcore/util.h"
#include "auto_test_support.h"
#include "check_compat.h"
#ifndef USE_IPV6
#define USE_IPV6 1
#endif
static inline IP get_loopback(void)
{
IP ip;
#if USE_IPV6
ip.family = net_family_ipv6();
ip.ip.v6 = get_ip6_loopback();
#else
ip.family = net_family_ipv4();
ip.ip.v4 = get_ip4_loopback();
#endif
return ip;
}
#define NUM_FORWARDER 20
#define NUM_FORWARDER_TCP 5
#define NUM_FORWARDER_DHT (NUM_FORWARDER - NUM_FORWARDER_TCP)
#define NUM_FORWARDING_ITERATIONS 1
#define FORWARD_SEND_INTERVAL 2
#define FORWARDING_BASE_PORT 36571
typedef struct Test_Data {
Networking_Core *net;
uint32_t send_back;
uint64_t sent;
bool returned;
} Test_Data;
static void test_forwarded_request_cb(void *object, const IP_Port *forwarder,
const uint8_t *sendback, uint16_t sendback_length,
const uint8_t *data, uint16_t length, void *userdata)
{
const Test_Data *test_data = (const Test_Data *)object;
const uint8_t *index = (const uint8_t *)userdata;
if (length != 12 || memcmp("hello: ", data, 8) != 0) {
printf("[%u] got unexpected data of length %d\n", *index, length);
return;
}
uint8_t reply[12];
memcpy(reply, "reply: ", 8);
memcpy(reply + 8, data + 8, 4);
ck_assert_msg(forward_reply(test_data->net, forwarder, sendback, sendback_length, reply, 12),
"[%u] forward_reply failed", *index);
}
static void test_forwarded_response_cb(void *object,
const uint8_t *data, uint16_t length, void *userdata)
{
Test_Data *test_data = (Test_Data *)object;
const uint8_t *index = (const uint8_t *)userdata;
if (length != 12 || memcmp("reply: ", data, 8) != 0) {
printf("[%u] got unexpected data of length %d\n", *index, length);
return;
}
uint32_t send_back;
net_unpack_u32(data + 8, &send_back);
if (test_data->send_back == send_back) {
test_data->returned = true;
}
}
static bool all_returned(Test_Data *test_data)
{
for (uint32_t i = 0; i < NUM_FORWARDER; ++i) {
if (!test_data[i].returned) {
return false;
}
}
return true;
}
typedef struct Forwarding_Subtox {
Logger *log;
Mono_Time *mono_time;
Networking_Core *net;
DHT *dht;
Net_Crypto *c;
Forwarding *forwarding;
Announcements *announce;
} Forwarding_Subtox;
static Forwarding_Subtox *new_forwarding_subtox(const Memory *mem, bool no_udp, uint32_t *index, uint16_t port)
{
const Random *rng = os_random();
ck_assert(rng != nullptr);
const Network *ns = os_network();
ck_assert(ns != nullptr);
Forwarding_Subtox *subtox = (Forwarding_Subtox *)calloc(1, sizeof(Forwarding_Subtox));
ck_assert(subtox != nullptr);
subtox->log = logger_new();
ck_assert(subtox->log != nullptr);
logger_callback_log(subtox->log, print_debug_logger, nullptr, index);
subtox->mono_time = mono_time_new(mem, nullptr, nullptr);
if (no_udp) {
subtox->net = new_networking_no_udp(subtox->log, mem, ns);
} else {
const IP ip = get_loopback();
subtox->net = new_networking_ex(subtox->log, mem, ns, &ip, port, port, nullptr);
}
subtox->dht = new_dht(subtox->log, mem, rng, ns, subtox->mono_time, subtox->net, true, true);
const TCP_Proxy_Info inf = {{{{0}}}};
subtox->c = new_net_crypto(subtox->log, mem, rng, ns, subtox->mono_time, subtox->dht, &inf);
subtox->forwarding = new_forwarding(subtox->log, rng, subtox->mono_time, subtox->dht);
ck_assert(subtox->forwarding != nullptr);
subtox->announce = new_announcements(subtox->log, mem, rng, subtox->mono_time, subtox->forwarding);
ck_assert(subtox->announce != nullptr);
return subtox;
}
static void kill_forwarding_subtox(const Memory *mem, Forwarding_Subtox *subtox)
{
kill_announcements(subtox->announce);
kill_forwarding(subtox->forwarding);
kill_net_crypto(subtox->c);
kill_dht(subtox->dht);
kill_networking(subtox->net);
mono_time_free(mem, subtox->mono_time);
logger_kill(subtox->log);
free(subtox);
}
static void test_forwarding(void)
{
const Memory *mem = os_memory();
ck_assert(mem != nullptr);
const Random *rng = os_random();
ck_assert(rng != nullptr);
const Network *ns = os_network();
ck_assert(ns != nullptr);
uint32_t index[NUM_FORWARDER];
Forwarding_Subtox *subtoxes[NUM_FORWARDER];
Test_Data test_data[NUM_FORWARDER];
const IP ip = get_loopback();
for (uint32_t i = 0; i < NUM_FORWARDER; ++i) {
index[i] = i + 1;
subtoxes[i] = new_forwarding_subtox(mem, i < NUM_FORWARDER_TCP, &index[i], FORWARDING_BASE_PORT + i);
test_data[i].net = subtoxes[i]->net;
test_data[i].send_back = 0;
test_data[i].sent = 0;
test_data[i].returned = false;
set_callback_forwarded_request(subtoxes[i]->forwarding, test_forwarded_request_cb, &test_data[i]);
set_callback_forwarded_response(subtoxes[i]->forwarding, test_forwarded_response_cb, &test_data[i]);
set_forwarding_packet_tcp_connection_callback(nc_get_tcp_c(subtoxes[i]->c), test_forwarded_response_cb, &test_data[i]);
}
printf("testing forwarding via tcp relays and dht\n");
struct Tox_Options *opts = tox_options_new(nullptr);
uint16_t forwarder_tcp_relay_port = 36570;
Tox *relay = nullptr;
// Try a few different ports.
for (uint8_t i = 0; i < 100; ++i) {
tox_options_set_tcp_port(opts, forwarder_tcp_relay_port);
relay = tox_new_log(opts, nullptr, nullptr);
if (relay != nullptr) {
break;
}
++forwarder_tcp_relay_port;
}
tox_options_free(opts);
ck_assert_msg(relay != nullptr, "Failed to create TCP relay");
IP_Port relay_ipport_tcp = {ip, net_htons(forwarder_tcp_relay_port)};
uint8_t dpk[TOX_PUBLIC_KEY_SIZE];
tox_self_get_dht_id(relay, dpk);
printf("1-%d connected only to TCP server; %d-%d connected only to DHT\n",
NUM_FORWARDER_TCP, NUM_FORWARDER_TCP + 1, NUM_FORWARDER);
for (uint32_t i = 0; i < NUM_FORWARDER_TCP; ++i) {
set_tcp_onion_status(nc_get_tcp_c(subtoxes[i]->c), 1);
ck_assert_msg(add_tcp_relay(subtoxes[i]->c, &relay_ipport_tcp, dpk) == 0,
"Failed to add TCP relay");
}
IP_Port relay_ipport_udp = {ip, net_htons(tox_self_get_udp_port(relay, nullptr))};
for (uint32_t i = NUM_FORWARDER_TCP; i < NUM_FORWARDER; ++i) {
dht_bootstrap(subtoxes[i]->dht, &relay_ipport_udp, dpk);
}
printf("allowing DHT to populate\n");
uint16_t dht_establish_iterations = NUM_FORWARDER * 5;
for (uint32_t n = 0; n < NUM_FORWARDING_ITERATIONS; ++n) {
for (uint32_t i = 0; i < NUM_FORWARDER; ++i) {
test_data[i].sent = 0;
test_data[i].returned = false;
}
do {
for (uint32_t i = 0; i < NUM_FORWARDER; ++i) {
Forwarding_Subtox *const subtox = subtoxes[i];
mono_time_update(subtox->mono_time);
networking_poll(subtox->net, &index[i]);
do_net_crypto(subtox->c, &index[i]);
do_dht(subtox->dht);
if (dht_establish_iterations ||
test_data[i].returned ||
!mono_time_is_timeout(subtox->mono_time, test_data[i].sent, FORWARD_SEND_INTERVAL)) {
continue;
}
printf("%u", i + 1);
if (i < NUM_FORWARDER_TCP) {
printf(" --> TCPRelay");
}
const uint16_t chain_length = i < NUM_FORWARDER_TCP ? i % 5 : i % 4 + 1;
uint8_t chain_keys[4 * CRYPTO_PUBLIC_KEY_SIZE];
uint32_t chain_i = NUM_FORWARDER_TCP + (random_u32(rng) % NUM_FORWARDER_DHT);
const IP_Port first_ipp = {ip, net_htons(FORWARDING_BASE_PORT + chain_i)};
printf(" --> %u", chain_i + 1);
for (uint16_t j = 0; j < chain_length; ++j) {
// pick random different dht node:
chain_i += 1 + random_u32(rng) % (NUM_FORWARDER_DHT - 1);
chain_i = NUM_FORWARDER_TCP + (chain_i - NUM_FORWARDER_TCP) % NUM_FORWARDER_DHT;
const uint8_t *dest_pubkey = dht_get_self_public_key(subtoxes[chain_i]->dht);
memcpy(chain_keys + j * CRYPTO_PUBLIC_KEY_SIZE, dest_pubkey, CRYPTO_PUBLIC_KEY_SIZE);
printf(" --> %u", chain_i + 1);
}
printf("\n");
const uint16_t length = 12;
uint8_t data[12];
memcpy(data, "hello: ", 8);
test_data[i].send_back = random_u32(rng);
net_pack_u32(data + 8, test_data[i].send_back);
if (i < NUM_FORWARDER_TCP) {
IP_Port tcp_forwarder;
if (!get_random_tcp_conn_ip_port(subtox->c, &tcp_forwarder)) {
continue;
}
if (send_tcp_forward_request(subtox->log, subtox->c, &tcp_forwarder, &first_ipp,
chain_keys, chain_length, data, length) == 0) {
test_data[i].sent = mono_time_get(subtox->mono_time);
}
} else {
if (send_forward_request(subtox->net, &first_ipp,
chain_keys, chain_length, data, length)) {
test_data[i].sent = mono_time_get(subtox->mono_time);
}
}
}
tox_iterate(relay, nullptr);
if (dht_establish_iterations) {
--dht_establish_iterations;
if (!dht_establish_iterations) {
printf("making forward requests and expecting replies\n");
}
}
c_sleep(50);
} while (!all_returned(test_data));
// This doesn't really belong in this test.
// It can be removed once the full announce client test is in place.
printf("checking that nodes are marked as announce nodes\n");
Node_format nodes[MAX_SENT_NODES];
ck_assert(NUM_FORWARDER - NUM_FORWARDER_TCP > 1);
for (uint32_t i = NUM_FORWARDER_TCP; i < NUM_FORWARDER; ++i) {
ck_assert_msg(get_close_nodes(subtoxes[i]->dht, dht_get_self_public_key(subtoxes[i]->dht), nodes, net_family_unspec(), true,
true) > 0,
"node %u has no nodes marked as announce nodes", i);
}
}
for (uint32_t i = 0; i < NUM_FORWARDER; ++i) {
kill_forwarding_subtox(mem, subtoxes[i]);
}
tox_kill(relay);
}
int main(void)
{
setvbuf(stdout, nullptr, _IONBF, 0);
test_forwarding();
return 0;
}
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