tomato-testing/auto_tests/onion_test.c

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#include <stdlib.h>
#include <string.h>
#include "../testing/misc_tools.h"
#include "../toxcore/mono_time.h"
#include "../toxcore/onion.h"
#include "../toxcore/onion_announce.h"
#include "../toxcore/onion_client.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;
}
static void do_onion(Mono_Time *mono_time, Onion *onion)
{
mono_time_update(mono_time);
networking_poll(onion->net, nullptr);
do_dht(onion->dht);
}
static int handled_test_1;
static int handle_test_1(void *object, const IP_Port *source, const uint8_t *packet, uint16_t length, void *userdata)
{
Onion *onion = (Onion *)object;
const char req_message[] = "Install Gentoo";
uint8_t req_packet[1 + sizeof(req_message)];
req_packet[0] = NET_PACKET_ANNOUNCE_REQUEST;
memcpy(req_packet + 1, req_message, sizeof(req_message));
if (memcmp(packet, req_packet, sizeof(req_packet)) != 0) {
return 1;
}
const char res_message[] = "install gentoo";
uint8_t res_packet[1 + sizeof(res_message)];
res_packet[0] = NET_PACKET_ANNOUNCE_RESPONSE;
memcpy(res_packet + 1, res_message, sizeof(res_message));
if (send_onion_response(onion->net, source, res_packet, sizeof(res_packet),
packet + sizeof(res_packet)) == -1) {
return 1;
}
handled_test_1 = 1;
return 0;
}
static int handled_test_2;
static int handle_test_2(void *object, const IP_Port *source, const uint8_t *packet, uint16_t length, void *userdata)
{
const char res_message[] = "install gentoo";
uint8_t res_packet[1 + sizeof(res_message)];
res_packet[0] = NET_PACKET_ANNOUNCE_RESPONSE;
memcpy(res_packet + 1, res_message, sizeof(res_message));
if (length != sizeof(res_packet)) {
return 1;
}
if (memcmp(packet, res_packet, sizeof(res_packet)) != 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("%02X", 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, const IP_Port *source, const uint8_t *packet, uint16_t length, void *userdata)
{
Onion *onion = (Onion *)object;
if (length < ONION_ANNOUNCE_RESPONSE_MIN_SIZE || length > ONION_ANNOUNCE_RESPONSE_MAX_SIZE) {
return 1;
}
uint8_t plain[2 + 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,
2 + 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;
}
/* TODO: DEPRECATE */
static int handle_test_3_old(void *object, const IP_Port *source, const uint8_t *packet, uint16_t length,
void *userdata)
{
Onion *onion = (Onion *)object;
if (length < ONION_ANNOUNCE_RESPONSE_MIN_SIZE || length > ONION_ANNOUNCE_RESPONSE_MAX_SIZE) {
return 1;
}
uint8_t plain[2 + 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, const 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;
}
/** Create and send a onion packet.
*
* Use Onion_Path path to send data of length to dest.
* Maximum length of data is ONION_MAX_DATA_SIZE.
*/
static void send_onion_packet(const Networking_Core *net, const Random *rng, const Onion_Path *path, const IP_Port *dest, const uint8_t *data, uint16_t length)
{
uint8_t packet[ONION_MAX_PACKET_SIZE];
const int len = create_onion_packet(rng, packet, sizeof(packet), path, dest, data, length);
ck_assert_msg(len != -1, "failed to create onion packet");
ck_assert_msg(sendpacket(net, &path->ip_port1, packet, len) == len, "failed to send onion packet");
}
/** Initialize networking.
* Added for reverse compatibility with old new_networking calls.
*/
static Networking_Core *new_networking(const Logger *log, const Memory *mem, const Network *ns, const IP *ip, uint16_t port)
{
return new_networking_ex(log, mem, ns, ip, port, port + (TOX_PORTRANGE_TO - TOX_PORTRANGE_FROM), nullptr);
}
static void test_basic(void)
{
uint32_t index[] = { 1, 2, 3 };
const Network *ns = system_network();
ck_assert(ns != nullptr);
const Memory *mem = system_memory();
ck_assert(mem != nullptr);
const Random *rng = system_random();
ck_assert(rng != nullptr);
Logger *log1 = logger_new();
logger_callback_log(log1, print_debug_logger, nullptr, &index[0]);
Logger *log2 = logger_new();
logger_callback_log(log2, print_debug_logger, nullptr, &index[1]);
Mono_Time *mono_time1 = mono_time_new(mem, nullptr, nullptr);
Mono_Time *mono_time2 = mono_time_new(mem, nullptr, nullptr);
IP ip = get_loopback();
Onion *onion1 = new_onion(log1, mem, mono_time1, rng, new_dht(log1, mem, rng, ns, mono_time1, new_networking(log1, mem, ns, &ip, 36567), true, false));
Onion *onion2 = new_onion(log2, mem, mono_time2, rng, new_dht(log2, mem, rng, ns, mono_time2, new_networking(log2, mem, ns, &ip, 36568), true, false));
ck_assert_msg((onion1 != nullptr) && (onion2 != nullptr), "Onion failed initializing.");
networking_registerhandler(onion2->net, NET_PACKET_ANNOUNCE_REQUEST, &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;
const char req_message[] = "Install Gentoo";
uint8_t req_packet[1 + sizeof(req_message)];
req_packet[0] = NET_PACKET_ANNOUNCE_REQUEST;
memcpy(req_packet + 1, req_message, sizeof(req_message));
Node_format nodes[4];
nodes[0] = n1;
nodes[1] = n2;
nodes[2] = n1;
nodes[3] = n2;
Onion_Path path;
create_onion_path(rng, onion1->dht, &path, nodes);
send_onion_packet(onion1->net, rng, &path, &nodes[3].ip_port, req_packet, sizeof(req_packet));
handled_test_1 = 0;
do {
do_onion(mono_time1, onion1);
do_onion(mono_time2, onion2);
} while (handled_test_1 == 0);
networking_registerhandler(onion1->net, NET_PACKET_ANNOUNCE_RESPONSE, &handle_test_2, onion1);
handled_test_2 = 0;
do {
do_onion(mono_time1, onion1);
do_onion(mono_time2, onion2);
} while (handled_test_2 == 0);
Onion_Announce *onion1_a = new_onion_announce(log1, mem, rng, mono_time1, onion1->dht);
Onion_Announce *onion2_a = new_onion_announce(log2, mem, rng, mono_time2, onion2->dht);
networking_registerhandler(onion1->net, NET_PACKET_ANNOUNCE_RESPONSE, &handle_test_3, onion1);
networking_registerhandler(onion1->net, NET_PACKET_ANNOUNCE_RESPONSE_OLD, &handle_test_3_old, onion1);
ck_assert_msg((onion1_a != nullptr) && (onion2_a != nullptr), "Onion_Announce failed initializing.");
uint8_t zeroes[64] = {0};
random_bytes(rng, 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);
int ret = send_announce_request(onion1->net, rng, &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;
do {
do_onion(mono_time1, onion1);
do_onion(mono_time2, onion2);
c_sleep(50);
} while (handled_test_3 == 0);
printf("test 3 complete\n");
random_bytes(rng, 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, mono_time_get(mono_time2));
networking_registerhandler(onion1->net, NET_PACKET_ONION_DATA_RESPONSE, &handle_test_4, onion1);
send_announce_request(onion1->net, rng, &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);
do {
do_onion(mono_time1, onion1);
do_onion(mono_time2, onion2);
c_sleep(50);
} 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);
c_sleep(1000);
Logger *log3 = logger_new();
logger_callback_log(log3, print_debug_logger, nullptr, &index[2]);
Mono_Time *mono_time3 = mono_time_new(mem, nullptr, nullptr);
Onion *onion3 = new_onion(log3, mem, mono_time3, rng, new_dht(log3, mem, rng, ns, mono_time3, new_networking(log3, mem, ns, &ip, 36569), true, false));
ck_assert_msg((onion3 != nullptr), "Onion failed initializing.");
random_nonce(rng, nonce);
ret = send_data_request(onion3->net, rng, &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;
do {
do_onion(mono_time1, onion1);
do_onion(mono_time2, onion2);
c_sleep(50);
} while (handled_test_4 == 0);
printf("test 4 complete\n");
kill_onion_announce(onion2_a);
kill_onion_announce(onion1_a);
{
Onion *onion = onion3;
Networking_Core *net = dht_get_net(onion->dht);
DHT *dht = onion->dht;
kill_onion(onion);
kill_dht(dht);
kill_networking(net);
mono_time_free(mem, mono_time3);
logger_kill(log3);
}
{
Onion *onion = onion2;
Networking_Core *net = dht_get_net(onion->dht);
DHT *dht = onion->dht;
kill_onion(onion);
kill_dht(dht);
kill_networking(net);
mono_time_free(mem, mono_time2);
logger_kill(log2);
}
{
Onion *onion = onion1;
Networking_Core *net = dht_get_net(onion->dht);
DHT *dht = onion->dht;
kill_onion(onion);
kill_dht(dht);
kill_networking(net);
mono_time_free(mem, mono_time1);
logger_kill(log1);
}
}
typedef struct {
Logger *log;
Mono_Time *mono_time;
Onion *onion;
Onion_Announce *onion_a;
Onion_Client *onion_c;
} Onions;
static Onions *new_onions(const Memory *mem, const Random *rng, uint16_t port, uint32_t *index)
{
IP ip = get_loopback();
ip.ip.v6.uint8[15] = 1;
const Network *ns = system_network();
Onions *on = (Onions *)malloc(sizeof(Onions));
if (!on) {
return nullptr;
}
on->log = logger_new();
if (!on->log) {
free(on);
return nullptr;
}
logger_callback_log(on->log, print_debug_logger, nullptr, index);
on->mono_time = mono_time_new(mem, nullptr, nullptr);
if (!on->mono_time) {
logger_kill(on->log);
free(on);
return nullptr;
}
Networking_Core *net = new_networking(on->log, mem, ns, &ip, port);
if (!net) {
mono_time_free(mem, on->mono_time);
logger_kill(on->log);
free(on);
return nullptr;
}
DHT *dht = new_dht(on->log, mem, rng, ns, on->mono_time, net, true, false);
if (!dht) {
kill_networking(net);
mono_time_free(mem, on->mono_time);
logger_kill(on->log);
free(on);
return nullptr;
}
on->onion = new_onion(on->log, mem, on->mono_time, rng, dht);
if (!on->onion) {
kill_dht(dht);
kill_networking(net);
mono_time_free(mem, on->mono_time);
logger_kill(on->log);
free(on);
return nullptr;
}
on->onion_a = new_onion_announce(on->log, mem, rng, on->mono_time, dht);
if (!on->onion_a) {
kill_onion(on->onion);
kill_dht(dht);
kill_networking(net);
mono_time_free(mem, on->mono_time);
logger_kill(on->log);
free(on);
return nullptr;
}
TCP_Proxy_Info inf = {{{{0}}}};
on->onion_c = new_onion_client(on->log, mem, rng, on->mono_time, new_net_crypto(on->log, mem, rng, ns, on->mono_time, dht, &inf));
if (!on->onion_c) {
kill_onion_announce(on->onion_a);
kill_onion(on->onion);
kill_dht(dht);
kill_networking(net);
mono_time_free(mem, on->mono_time);
logger_kill(on->log);
free(on);
return nullptr;
}
return on;
}
static void do_onions(Onions *on)
{
mono_time_update(on->mono_time);
networking_poll(on->onion->net, nullptr);
do_dht(on->onion->dht);
do_onion_client(on->onion_c);
}
static void kill_onions(const Memory *mem, 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);
mono_time_free(mem, on->mono_time);
logger_kill(on->log);
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, const 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;
uint32_t token = 0;
int ret = dht_addfriend(on->onion->dht, dht_public_key, &dht_ip_callback, object, number, &token);
ck_assert_msg(ret == 0, "dht_addfriend() did not return 0");
ck_assert_msg(token == 1, "Count not 1, count is %u", token);
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.");
}
}
static void test_announce(void)
{
uint32_t index[NUM_ONIONS];
Onions *onions[NUM_ONIONS];
const Random *rng = system_random();
ck_assert(rng != nullptr);
const Memory *mem = system_memory();
ck_assert(mem != nullptr);
for (uint32_t i = 0; i < NUM_ONIONS; ++i) {
index[i] = i + 1;
onions[i] = new_onions(mem, rng, i + 36655, &index[i]);
ck_assert_msg(onions[i] != nullptr, "Failed to create onions. %u", i);
}
IP ip = get_loopback();
for (uint32_t 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;
do {
connected = 0;
for (uint32_t i = 0; i < NUM_ONIONS; ++i) {
do_onions(onions[i]);
connected += dht_isconnected(onions[i]->onion->dht);
}
c_sleep(50);
} while (connected != NUM_ONIONS);
printf("connected\n");
for (uint32_t i = 0; i < 25 * 2; ++i) {
for (uint32_t 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;
do {
for (uint32_t i = 0; i < NUM_ONIONS; ++i) {
do_onions(onions[i]);
}
c_sleep(50);
} while (!first || !last);
printf("Waiting for ips\n");
do {
for (uint32_t i = 0; i < NUM_ONIONS; ++i) {
do_onions(onions[i]);
}
c_sleep(50);
} while (!first_ip || !last_ip);
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 (uint32_t i = 0; i < NUM_ONIONS; ++i) {
kill_onions(mem, onions[i]);
}
}
int main(void)
{
setvbuf(stdout, nullptr, _IONBF, 0);
test_basic();
test_announce();
return 0;
}