static void do_announce(Onion_Client *onion_c)
{
uint32_t i, count = 0;
Onion_Node *list_nodes = onion_c->clients_announce_list;
for (i = 0; i < MAX_ONION_CLIENTS; ++i) {
if (is_timeout(list_nodes[i].timestamp, ONION_NODE_TIMEOUT))
continue;
++count;
uint32_t interval = ANNOUNCE_INTERVAL_NOT_ANNOUNCED;
if (memcmp(list_nodes[i].ping_id, zero_ping, ONION_PING_ID_SIZE) == 0) {
interval = ANNOUNCE_INTERVAL_ANNOUNCED;
}
if (is_timeout(list_nodes[i].last_pinged, interval)) {
if (client_send_announce_request(onion_c, 0, list_nodes[i].ip_port, list_nodes[i].client_id,
list_nodes[i].ping_id) == 0) {
list_nodes[i].last_pinged = unix_time();
}
}
}
if (count < MAX_ONION_CLIENTS / 2) {
Node_format nodes_list[MAX_SENT_NODES];
uint32_t num_nodes = get_close_nodes(onion_c->dht, onion_c->dht->c->self_public_key, nodes_list,
rand() % 2 ? AF_INET : AF_INET6, rand() % 2, 1);
for (i = 0; i < num_nodes; ++i)
client_send_announce_request(onion_c, 0, nodes_list[i].ip_port, nodes_list[i].client_id, 0);
}
}
static void do_friend(Onion_Client *onion_c, uint16_t friendnum)
{
if (friendnum >= onion_c->num_friends)
return;
if (onion_c->friends_list[friendnum].status == 0)
return;
uint32_t i, count = 0;
Onion_Node *list_nodes = onion_c->friends_list[friendnum].clients_list;
if (!onion_c->friends_list[friendnum].is_online) {
for (i = 0; i < MAX_ONION_CLIENTS; ++i) {
if (is_timeout(list_nodes[i].timestamp, ONION_NODE_TIMEOUT))
continue;
++count;
if (list_nodes[i].last_pinged == 0) {
list_nodes[i].last_pinged = unix_time();
continue;
}
if (is_timeout(list_nodes[i].last_pinged, ANNOUNCE_FRIEND)) {
if (client_send_announce_request(onion_c, friendnum + 1, list_nodes[i].ip_port, list_nodes[i].client_id, 0, ~0) == 0) {
list_nodes[i].last_pinged = unix_time();
}
}
}
if (count != MAX_ONION_CLIENTS) {
if (count < (uint32_t)rand() % MAX_ONION_CLIENTS) {
Node_format nodes_list[MAX_SENT_NODES];
uint32_t num_nodes = get_close_nodes(onion_c->dht, onion_c->friends_list[friendnum].real_client_id, nodes_list,
(rand() % 2) ? AF_INET : AF_INET6, 1, 0);
for (i = 0; i < num_nodes; ++i)
client_send_announce_request(onion_c, friendnum + 1, nodes_list[i].ip_port, nodes_list[i].client_id, 0, ~0);
}
}
/* send packets to friend telling them our fake DHT id. */
if (is_timeout(onion_c->friends_list[friendnum].last_fakeid_onion_sent, ONION_FAKEID_INTERVAL))
if (send_fakeid_announce(onion_c, friendnum, 0) >= 1)
onion_c->friends_list[friendnum].last_fakeid_onion_sent = unix_time();
if (is_timeout(onion_c->friends_list[friendnum].last_fakeid_dht_sent, DHT_FAKEID_INTERVAL))
if (send_fakeid_announce(onion_c, friendnum, 1) >= 1)
onion_c->friends_list[friendnum].last_fakeid_dht_sent = unix_time();
}
}
static void do_announce(Onion_Client *onion_c)
{
uint32_t i, count = 0;
Onion_Node *list_nodes = onion_c->clients_announce_list;
for (i = 0; i < MAX_ONION_CLIENTS; ++i) {
if (is_timeout(list_nodes[i].timestamp, ONION_NODE_TIMEOUT))
continue;
++count;
/* Don't announce ourselves the first time this is run to new peers */
if (list_nodes[i].last_pinged == 0) {
list_nodes[i].last_pinged = 1;
continue;
}
uint32_t interval = ANNOUNCE_INTERVAL_NOT_ANNOUNCED;
if (list_nodes[i].is_stored) {
interval = ANNOUNCE_INTERVAL_ANNOUNCED;
}
if (is_timeout(list_nodes[i].last_pinged, interval)) {
if (client_send_announce_request(onion_c, 0, list_nodes[i].ip_port, list_nodes[i].client_id,
list_nodes[i].ping_id, list_nodes[i].path_used) == 0) {
list_nodes[i].last_pinged = unix_time();
}
}
}
if (count != MAX_ONION_CLIENTS) {
if (count < (uint32_t)rand() % MAX_ONION_CLIENTS) {
unsigned int num_nodes = (onion_c->path_nodes_index < MAX_PATH_NODES) ? onion_c->path_nodes_index : MAX_PATH_NODES;
if (num_nodes != 0) {
unsigned int num = rand() % num_nodes;
client_send_announce_request(onion_c, 0, onion_c->path_nodes[num].ip_port, onion_c->path_nodes[num].client_id, 0, ~0);
}
}
}
}
static void do_announce(Onion_Client *onion_c)
{
uint32_t i, count = 0;
Onion_Node *list_nodes = onion_c->clients_announce_list;
for (i = 0; i < MAX_ONION_CLIENTS; ++i) {
if (is_timeout(list_nodes[i].timestamp, ONION_NODE_TIMEOUT))
continue;
++count;
/* Don't announce ourselves the first time this is run to new peers */
if (list_nodes[i].last_pinged == 0) {
list_nodes[i].last_pinged = 1;
continue;
}
uint32_t interval = ANNOUNCE_INTERVAL_NOT_ANNOUNCED;
if (list_nodes[i].is_stored) {
interval = ANNOUNCE_INTERVAL_ANNOUNCED;
}
if (is_timeout(list_nodes[i].last_pinged, interval)) {
if (client_send_announce_request(onion_c, 0, list_nodes[i].ip_port, list_nodes[i].client_id,
list_nodes[i].ping_id, list_nodes[i].path_used) == 0) {
list_nodes[i].last_pinged = unix_time();
}
}
}
if (count != MAX_ONION_CLIENTS) {
if (count < (uint32_t)rand() % MAX_ONION_CLIENTS) {
Node_format nodes_list[MAX_SENT_NODES];
uint32_t num_nodes = get_close_nodes(onion_c->dht, onion_c->c->self_public_key, nodes_list,
(rand() % 2) ? AF_INET : AF_INET6, 1, 0);
for (i = 0; i < num_nodes; ++i) {
client_send_announce_request(onion_c, 0, nodes_list[i].ip_port, nodes_list[i].client_id, 0, ~0);
}
}
}
}
static int client_ping_nodes(Onion_Client *onion_c, uint32_t num, Node_format *nodes, uint16_t num_nodes,
IP_Port source)
{
if (num > onion_c->num_friends)
return -1;
if (num_nodes == 0)
return 0;
Onion_Node *list_nodes = NULL;
uint8_t *reference_id = NULL;
uint32_t *ping_nodes_sent_second = NULL;
if (num == 0) {
list_nodes = onion_c->clients_announce_list;
reference_id = onion_c->dht->c->self_public_key;
ping_nodes_sent_second = &onion_c->ping_nodes_sent_second;
} else {
list_nodes = onion_c->friends_list[num - 1].clients_list;
reference_id = onion_c->friends_list[num - 1].real_client_id;
ping_nodes_sent_second = &onion_c->friends_list[num - 1].ping_nodes_sent_second;
}
uint32_t i, j;
int lan_ips_accepted = (LAN_ip(source.ip) == 0);
for (i = 0; i < num_nodes; ++i) {
if (*ping_nodes_sent_second > MAX_PING_NODES_SECOND_PEER)
return 0;
to_host_family(&nodes[i].ip_port.ip);
if (!lan_ips_accepted)
if (LAN_ip(nodes[i].ip_port.ip) == 0)
continue;
if (is_timeout(list_nodes[0].timestamp, ONION_NODE_TIMEOUT)
|| id_closest(reference_id, list_nodes[0].client_id, nodes[i].client_id) == 2) {
/* check if node is already in list. */
for (j = 0; j < MAX_ONION_CLIENTS; ++j) {
if (memcmp(list_nodes[j].client_id, nodes[i].client_id, crypto_box_PUBLICKEYBYTES) == 0) {
break;
}
}
if (j == MAX_ONION_CLIENTS) {
if (client_send_announce_request(onion_c, num, nodes[i].ip_port, nodes[i].client_id, NULL, ~0) == 0)
++*ping_nodes_sent_second;
}
}
}
return 0;
}
static int client_ping_nodes(Onion_Client *onion_c, uint32_t num, const Node_format *nodes, uint16_t num_nodes,
IP_Port source)
{
if (num > onion_c->num_friends)
return -1;
if (num_nodes == 0)
return 0;
Onion_Node *list_nodes = NULL;
uint8_t *reference_id = NULL;
Last_Pinged *last_pinged = NULL;
uint8_t *last_pinged_index = NULL;
if (num == 0) {
list_nodes = onion_c->clients_announce_list;
reference_id = onion_c->c->self_public_key;
last_pinged = onion_c->last_pinged;
last_pinged_index = &onion_c->last_pinged_index;
} else {
list_nodes = onion_c->friends_list[num - 1].clients_list;
reference_id = onion_c->friends_list[num - 1].real_client_id;
last_pinged = onion_c->friends_list[num - 1].last_pinged;
last_pinged_index = &onion_c->friends_list[num - 1].last_pinged_index;
}
uint32_t i, j;
int lan_ips_accepted = (LAN_ip(source.ip) == 0);
for (i = 0; i < num_nodes; ++i) {
if (!lan_ips_accepted)
if (LAN_ip(nodes[i].ip_port.ip) == 0)
continue;
if (is_timeout(list_nodes[0].timestamp, ONION_NODE_TIMEOUT)
|| id_closest(reference_id, list_nodes[0].client_id, nodes[i].client_id) == 2) {
/* check if node is already in list. */
for (j = 0; j < MAX_ONION_CLIENTS; ++j) {
if (memcmp(list_nodes[j].client_id, nodes[i].client_id, crypto_box_PUBLICKEYBYTES) == 0) {
break;
}
}
if (j == MAX_ONION_CLIENTS && good_to_ping(last_pinged, last_pinged_index, nodes[i].client_id)) {
client_send_announce_request(onion_c, num, nodes[i].ip_port, nodes[i].client_id, NULL, ~0);
}
}
}
return 0;
}
static int client_ping_nodes(Onion_Client *onion_c, uint32_t num, Node_format *nodes, uint16_t num_nodes,
IP_Port source)
{
if (num > onion_c->num_friends)
return -1;
if (num_nodes == 0)
return 0;
Onion_Node *list_nodes = NULL;
uint8_t *reference_id = NULL;
if (num == 0) {
list_nodes = onion_c->clients_announce_list;
reference_id = onion_c->dht->c->self_public_key;
} else {
list_nodes = onion_c->friends_list[num - 1].clients_list;
reference_id = onion_c->friends_list[num - 1].real_client_id;
}
uint32_t i;
int lan_ips_accepted = (LAN_ip(source.ip) == 0);
for (i = 0; i < num_nodes; ++i) {
to_host_family(&nodes[i].ip_port.ip);
if (!lan_ips_accepted)
if (LAN_ip(nodes[i].ip_port.ip) == 0)
continue;
if (is_timeout(list_nodes[0].timestamp, ONION_NODE_TIMEOUT)
|| id_closest(reference_id, list_nodes[0].client_id, nodes[i].client_id) == 2) {
client_send_announce_request(onion_c, num, nodes[i].ip_port, nodes[i].client_id, NULL);
}
}
return 0;
}
static void do_friend(Onion_Client *onion_c, uint16_t friendnum)
{
if (friendnum >= onion_c->num_friends)
return;
if (onion_c->friends_list[friendnum].status == 0)
return;
uint32_t interval = ANNOUNCE_FRIEND;
if (onion_c->friends_list[friendnum].run_count < RUN_COUNT_FRIEND_ANNOUNCE_BEGINNING)
interval = ANNOUNCE_FRIEND_BEGINNING;
uint32_t i, count = 0;
Onion_Node *list_nodes = onion_c->friends_list[friendnum].clients_list;
if (!onion_c->friends_list[friendnum].is_online) {
++onion_c->friends_list[friendnum].run_count;
for (i = 0; i < MAX_ONION_CLIENTS; ++i) {
if (is_timeout(list_nodes[i].timestamp, FRIEND_ONION_NODE_TIMEOUT))
continue;
++count;
if (list_nodes[i].last_pinged == 0) {
list_nodes[i].last_pinged = unix_time();
continue;
}
if (is_timeout(list_nodes[i].last_pinged, interval)) {
if (client_send_announce_request(onion_c, friendnum + 1, list_nodes[i].ip_port, list_nodes[i].client_id, 0, ~0) == 0) {
list_nodes[i].last_pinged = unix_time();
}
}
}
if (count != MAX_ONION_CLIENTS) {
unsigned int num_nodes = (onion_c->path_nodes_index < MAX_PATH_NODES) ? onion_c->path_nodes_index : MAX_PATH_NODES;
unsigned int n = num_nodes;
if (num_nodes > (MAX_ONION_CLIENTS / 2))
n = (MAX_ONION_CLIENTS / 2);
if (num_nodes != 0) {
unsigned int j;
for (j = 0; j < n; ++j) {
unsigned int num = rand() % num_nodes;
client_send_announce_request(onion_c, friendnum + 1, onion_c->path_nodes[num].ip_port,
onion_c->path_nodes[num].client_id, 0, ~0);
}
}
}
/* send packets to friend telling them our fake DHT id. */
if (is_timeout(onion_c->friends_list[friendnum].last_fakeid_onion_sent, ONION_FAKEID_INTERVAL))
if (send_fakeid_announce(onion_c, friendnum, 0) >= 1)
onion_c->friends_list[friendnum].last_fakeid_onion_sent = unix_time();
if (is_timeout(onion_c->friends_list[friendnum].last_fakeid_dht_sent, DHT_FAKEID_INTERVAL))
if (send_fakeid_announce(onion_c, friendnum, 1) >= 1)
onion_c->friends_list[friendnum].last_fakeid_dht_sent = unix_time();
}
}
