toxcore/auto_tests/onion_test.c

555 lines
15 KiB
C

#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "check_compat.h"
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include "../toxcore/onion.h"
#include "../toxcore/onion_announce.h"
#include "../toxcore/onion_client.h"
#include "../toxcore/util.h"
#include "helpers.h"
#ifndef USE_IPV6
#define USE_IPV6 1
#endif
static inline IP get_loopback()
{
IP ip;
#if USE_IPV6
ip.family = TOX_AF_INET6;
ip.ip.v6 = get_ip6_loopback();
#else
ip.family = TOX_AF_INET;
ip.ip.v4 = get_ip4_loopback();
#endif
return ip;
}
static void do_onion(Onion *onion)
{
networking_poll(onion->net, nullptr);
do_DHT(onion->dht);
}
static int handled_test_1;
static int handle_test_1(void *object, IP_Port source, const uint8_t *packet, uint16_t length, void *userdata)
{
Onion *onion = (Onion *)object;
if (memcmp(packet, "Install Gentoo", sizeof("Install Gentoo")) != 0) {
return 1;
}
if (send_onion_response(onion->net, source, (const uint8_t *)"install gentoo", sizeof("install gentoo"),
packet + sizeof("Install Gentoo")) == -1) {
return 1;
}
handled_test_1 = 1;
return 0;
}
static int handled_test_2;
static int handle_test_2(void *object, IP_Port source, const uint8_t *packet, uint16_t length, void *userdata)
{
if (length != sizeof("install Gentoo")) {
return 1;
}
if (memcmp(packet, (const uint8_t *)"install gentoo", sizeof("install gentoo")) != 0) {
return 1;
}
handled_test_2 = 1;
return 0;
}
#if 0
void print_client_id(uint8_t *client_id, uint32_t length)
{
uint32_t j;
for (j = 0; j < length; j++) {
printf("%02hhX", client_id[j]);
}
printf("\n");
}
#endif
static uint8_t sb_data[ONION_ANNOUNCE_SENDBACK_DATA_LENGTH];
static int handled_test_3;
static uint8_t test_3_pub_key[CRYPTO_PUBLIC_KEY_SIZE];
static uint8_t test_3_ping_id[CRYPTO_SHA256_SIZE];
static int handle_test_3(void *object, IP_Port source, const uint8_t *packet, uint16_t length, void *userdata)
{
Onion *onion = (Onion *)object;
if (length != (1 + CRYPTO_NONCE_SIZE + ONION_ANNOUNCE_SENDBACK_DATA_LENGTH + 1 + CRYPTO_SHA256_SIZE +
CRYPTO_MAC_SIZE)) {
return 1;
}
uint8_t plain[1 + CRYPTO_SHA256_SIZE];
#if 0
print_client_id(packet, length);
#endif
int len = decrypt_data(test_3_pub_key, dht_get_self_secret_key(onion->dht),
packet + 1 + ONION_ANNOUNCE_SENDBACK_DATA_LENGTH,
packet + 1 + ONION_ANNOUNCE_SENDBACK_DATA_LENGTH + CRYPTO_NONCE_SIZE,
1 + CRYPTO_SHA256_SIZE + CRYPTO_MAC_SIZE, plain);
if (len == -1) {
return 1;
}
if (memcmp(packet + 1, sb_data, ONION_ANNOUNCE_SENDBACK_DATA_LENGTH) != 0) {
return 1;
}
memcpy(test_3_ping_id, plain + 1, CRYPTO_SHA256_SIZE);
#if 0
print_client_id(test_3_ping_id, sizeof(test_3_ping_id));
#endif
handled_test_3 = 1;
return 0;
}
static uint8_t nonce[CRYPTO_NONCE_SIZE];
static int handled_test_4;
static int handle_test_4(void *object, IP_Port source, const uint8_t *packet, uint16_t length, void *userdata)
{
Onion *onion = (Onion *)object;
if (length != (1 + CRYPTO_NONCE_SIZE + CRYPTO_PUBLIC_KEY_SIZE + sizeof("Install gentoo") +
CRYPTO_MAC_SIZE)) {
return 1;
}
uint8_t plain[sizeof("Install gentoo")] = {0};
if (memcmp(nonce, packet + 1, CRYPTO_NONCE_SIZE) != 0) {
return 1;
}
int len = decrypt_data(packet + 1 + CRYPTO_NONCE_SIZE, dht_get_self_secret_key(onion->dht), packet + 1,
packet + 1 + CRYPTO_NONCE_SIZE + CRYPTO_PUBLIC_KEY_SIZE, sizeof("Install gentoo") + CRYPTO_MAC_SIZE, plain);
if (len == -1) {
return 1;
}
if (memcmp(plain, "Install gentoo", sizeof("Install gentoo")) != 0) {
return 1;
}
handled_test_4 = 1;
return 0;
}
START_TEST(test_basic)
{
IP ip = get_loopback();
Onion *onion1 = new_onion(new_DHT(nullptr, new_networking(nullptr, ip, 34567), true));
Onion *onion2 = new_onion(new_DHT(nullptr, new_networking(nullptr, ip, 34568), true));
ck_assert_msg((onion1 != nullptr) && (onion2 != nullptr), "Onion failed initializing.");
networking_registerhandler(onion2->net, 'I', &handle_test_1, onion2);
IP_Port on1 = {ip, net_port(onion1->net)};
Node_format n1;
memcpy(n1.public_key, dht_get_self_public_key(onion1->dht), CRYPTO_PUBLIC_KEY_SIZE);
n1.ip_port = on1;
IP_Port on2 = {ip, net_port(onion2->net)};
Node_format n2;
memcpy(n2.public_key, dht_get_self_public_key(onion2->dht), CRYPTO_PUBLIC_KEY_SIZE);
n2.ip_port = on2;
Node_format nodes[4];
nodes[0] = n1;
nodes[1] = n2;
nodes[2] = n1;
nodes[3] = n2;
Onion_Path path;
create_onion_path(onion1->dht, &path, nodes);
int ret = send_onion_packet(onion1->net, &path, nodes[3].ip_port, (const uint8_t *)"Install Gentoo",
sizeof("Install Gentoo"));
ck_assert_msg(ret == 0, "Failed to create/send onion packet.");
handled_test_1 = 0;
while (handled_test_1 == 0) {
do_onion(onion1);
do_onion(onion2);
}
networking_registerhandler(onion1->net, 'i', &handle_test_2, onion1);
handled_test_2 = 0;
while (handled_test_2 == 0) {
do_onion(onion1);
do_onion(onion2);
}
Onion_Announce *onion1_a = new_onion_announce(onion1->dht);
Onion_Announce *onion2_a = new_onion_announce(onion2->dht);
networking_registerhandler(onion1->net, NET_PACKET_ANNOUNCE_RESPONSE, &handle_test_3, onion1);
ck_assert_msg((onion1_a != nullptr) && (onion2_a != nullptr), "Onion_Announce failed initializing.");
uint8_t zeroes[64] = {0};
random_bytes(sb_data, sizeof(sb_data));
uint64_t s;
memcpy(&s, sb_data, sizeof(uint64_t));
memcpy(test_3_pub_key, nodes[3].public_key, CRYPTO_PUBLIC_KEY_SIZE);
ret = send_announce_request(onion1->net, &path, nodes[3],
dht_get_self_public_key(onion1->dht),
dht_get_self_secret_key(onion1->dht),
zeroes,
dht_get_self_public_key(onion1->dht),
dht_get_self_public_key(onion1->dht), s);
ck_assert_msg(ret == 0, "Failed to create/send onion announce_request packet.");
handled_test_3 = 0;
while (handled_test_3 == 0) {
do_onion(onion1);
do_onion(onion2);
c_sleep(50);
}
random_bytes(sb_data, sizeof(sb_data));
memcpy(&s, sb_data, sizeof(uint64_t));
memcpy(onion_announce_entry_public_key(onion2_a, 1), dht_get_self_public_key(onion2->dht), CRYPTO_PUBLIC_KEY_SIZE);
onion_announce_entry_set_time(onion2_a, 1, unix_time());
networking_registerhandler(onion1->net, NET_PACKET_ONION_DATA_RESPONSE, &handle_test_4, onion1);
send_announce_request(onion1->net, &path, nodes[3],
dht_get_self_public_key(onion1->dht),
dht_get_self_secret_key(onion1->dht),
test_3_ping_id,
dht_get_self_public_key(onion1->dht),
dht_get_self_public_key(onion1->dht), s);
while (memcmp(onion_announce_entry_public_key(onion2_a, ONION_ANNOUNCE_MAX_ENTRIES - 2),
dht_get_self_public_key(onion1->dht),
CRYPTO_PUBLIC_KEY_SIZE) != 0) {
do_onion(onion1);
do_onion(onion2);
c_sleep(50);
}
c_sleep(1000);
Onion *onion3 = new_onion(new_DHT(nullptr, new_networking(nullptr, ip, 34569), true));
ck_assert_msg((onion3 != nullptr), "Onion failed initializing.");
random_nonce(nonce);
ret = send_data_request(onion3->net, &path, nodes[3].ip_port,
dht_get_self_public_key(onion1->dht),
dht_get_self_public_key(onion1->dht),
nonce, (const uint8_t *)"Install gentoo", sizeof("Install gentoo"));
ck_assert_msg(ret == 0, "Failed to create/send onion data_request packet.");
handled_test_4 = 0;
while (handled_test_4 == 0) {
do_onion(onion1);
do_onion(onion2);
c_sleep(50);
}
kill_onion_announce(onion1_a);
kill_onion_announce(onion2_a);
{
Onion *onion = onion1;
Networking_Core *net = dht_get_net(onion->dht);
DHT *dht = onion->dht;
kill_onion(onion);
kill_DHT(dht);
kill_networking(net);
}
{
Onion *onion = onion2;
Networking_Core *net = dht_get_net(onion->dht);
DHT *dht = onion->dht;
kill_onion(onion);
kill_DHT(dht);
kill_networking(net);
}
{
Onion *onion = onion3;
Networking_Core *net = dht_get_net(onion->dht);
DHT *dht = onion->dht;
kill_onion(onion);
kill_DHT(dht);
kill_networking(net);
}
}
END_TEST
typedef struct {
Onion *onion;
Onion_Announce *onion_a;
Onion_Client *onion_c;
} Onions;
static Onions *new_onions(uint16_t port)
{
IP ip = get_loopback();
ip.ip.v6.uint8[15] = 1;
Onions *on = (Onions *)malloc(sizeof(Onions));
if (!on) {
return nullptr;
}
Networking_Core *net = new_networking(nullptr, ip, port);
if (!net) {
free(on);
return nullptr;
}
DHT *dht = new_DHT(nullptr, net, true);
if (!dht) {
kill_networking(net);
free(on);
return nullptr;
}
on->onion = new_onion(dht);
if (!on->onion) {
kill_DHT(dht);
kill_networking(net);
free(on);
return nullptr;
}
on->onion_a = new_onion_announce(dht);
if (!on->onion_a) {
kill_onion(on->onion);
kill_DHT(dht);
kill_networking(net);
free(on);
return nullptr;
}
TCP_Proxy_Info inf = {{{0}}};
on->onion_c = new_onion_client(new_net_crypto(nullptr, dht, &inf));
if (!on->onion_c) {
kill_onion_announce(on->onion_a);
kill_onion(on->onion);
kill_DHT(dht);
kill_networking(net);
free(on);
return nullptr;
}
return on;
}
static void do_onions(Onions *on)
{
networking_poll(on->onion->net, nullptr);
do_DHT(on->onion->dht);
do_onion_client(on->onion_c);
}
static void kill_onions(Onions *on)
{
Networking_Core *net = dht_get_net(on->onion->dht);
DHT *dht = on->onion->dht;
Net_Crypto *c = onion_get_net_crypto(on->onion_c);
kill_onion_client(on->onion_c);
kill_onion_announce(on->onion_a);
kill_onion(on->onion);
kill_net_crypto(c);
kill_DHT(dht);
kill_networking(net);
free(on);
}
#define NUM_ONIONS 50
#define NUM_FIRST 7
#define NUM_LAST 37
static bool first_ip, last_ip;
static void dht_ip_callback(void *object, int32_t number, IP_Port ip_port)
{
if (NUM_FIRST == number) {
first_ip = 1;
return;
}
if (NUM_LAST == number) {
last_ip = 1;
return;
}
ck_abort_msg("Error.");
}
static bool first, last;
static uint8_t first_dht_pk[CRYPTO_PUBLIC_KEY_SIZE];
static uint8_t last_dht_pk[CRYPTO_PUBLIC_KEY_SIZE];
static void dht_pk_callback(void *object, int32_t number, const uint8_t *dht_public_key, void *userdata)
{
if ((NUM_FIRST == number && !first) || (NUM_LAST == number && !last)) {
Onions *on = (Onions *)object;
uint16_t count = 0;
int ret = DHT_addfriend(on->onion->dht, dht_public_key, &dht_ip_callback, object, number, &count);
ck_assert_msg(ret == 0, "DHT_addfriend() did not return 0");
ck_assert_msg(count == 1, "Count not 1, count is %u", count);
if (NUM_FIRST == number && !first) {
first = 1;
if (memcmp(dht_public_key, last_dht_pk, CRYPTO_PUBLIC_KEY_SIZE) != 0) {
ck_abort_msg("Error wrong dht key.");
}
return;
}
if (NUM_LAST == number && !last) {
last = 1;
if (memcmp(dht_public_key, first_dht_pk, CRYPTO_PUBLIC_KEY_SIZE) != 0) {
ck_abort_msg("Error wrong dht key.");
}
return;
}
ck_abort_msg("Error.");
}
}
START_TEST(test_announce)
{
uint32_t i, j;
Onions *onions[NUM_ONIONS];
for (i = 0; i < NUM_ONIONS; ++i) {
onions[i] = new_onions(i + 34655);
ck_assert_msg(onions[i] != nullptr, "Failed to create onions. %u", i);
}
IP ip = get_loopback();
for (i = 3; i < NUM_ONIONS; ++i) {
IP_Port ip_port = {ip, net_port(onions[i - 1]->onion->net)};
DHT_bootstrap(onions[i]->onion->dht, ip_port, dht_get_self_public_key(onions[i - 1]->onion->dht));
IP_Port ip_port1 = {ip, net_port(onions[i - 2]->onion->net)};
DHT_bootstrap(onions[i]->onion->dht, ip_port1, dht_get_self_public_key(onions[i - 2]->onion->dht));
IP_Port ip_port2 = {ip, net_port(onions[i - 3]->onion->net)};
DHT_bootstrap(onions[i]->onion->dht, ip_port2, dht_get_self_public_key(onions[i - 3]->onion->dht));
}
uint32_t connected = 0;
while (connected != NUM_ONIONS) {
connected = 0;
for (i = 0; i < NUM_ONIONS; ++i) {
do_onions(onions[i]);
connected += DHT_isconnected(onions[i]->onion->dht);
}
c_sleep(50);
}
printf("connected\n");
for (i = 0; i < 25 * 2; ++i) {
for (j = 0; j < NUM_ONIONS; ++j) {
do_onions(onions[j]);
}
c_sleep(50);
}
memcpy(first_dht_pk, dht_get_self_public_key(onions[NUM_FIRST]->onion->dht), CRYPTO_PUBLIC_KEY_SIZE);
memcpy(last_dht_pk, dht_get_self_public_key(onions[NUM_LAST]->onion->dht), CRYPTO_PUBLIC_KEY_SIZE);
printf("adding friend\n");
int frnum_f = onion_addfriend(onions[NUM_FIRST]->onion_c,
nc_get_self_public_key(onion_get_net_crypto(onions[NUM_LAST]->onion_c)));
int frnum = onion_addfriend(onions[NUM_LAST]->onion_c,
nc_get_self_public_key(onion_get_net_crypto(onions[NUM_FIRST]->onion_c)));
onion_dht_pk_callback(onions[NUM_FIRST]->onion_c, frnum_f, &dht_pk_callback, onions[NUM_FIRST], NUM_FIRST);
onion_dht_pk_callback(onions[NUM_LAST]->onion_c, frnum, &dht_pk_callback, onions[NUM_LAST], NUM_LAST);
IP_Port ip_port;
while (!first || !last) {
for (i = 0; i < NUM_ONIONS; ++i) {
do_onions(onions[i]);
}
c_sleep(50);
}
printf("Waiting for ips\n");
while (!first_ip || !last_ip) {
for (i = 0; i < NUM_ONIONS; ++i) {
do_onions(onions[i]);
}
c_sleep(50);
}
onion_getfriendip(onions[NUM_LAST]->onion_c, frnum, &ip_port);
ck_assert_msg(ip_port.port == net_port(onions[NUM_FIRST]->onion->net), "Port in returned ip not correct.");
for (i = 0; i < NUM_ONIONS; ++i) {
kill_onions(onions[i]);
}
}
END_TEST
static Suite *onion_suite(void)
{
Suite *s = suite_create("Onion");
DEFTESTCASE_SLOW(basic, 5);
DEFTESTCASE_SLOW(announce, 70);
return s;
}
int main(void)
{
setvbuf(stdout, nullptr, _IONBF, 0);
srand((unsigned int) time(nullptr));
Suite *onion = onion_suite();
SRunner *test_runner = srunner_create(onion);
int number_failed = 0;
srunner_run_all(test_runner, CK_NORMAL);
number_failed = srunner_ntests_failed(test_runner);
srunner_free(test_runner);
return number_failed;
}