/* Returns a new TCP_Connections object associated with the secret_key.
*
* In order for others to connect to this instance new_tcp_connection_to() must be called with the
* public_key associated with secret_key.
*
* Returns NULL on failure.
*/
TCP_Connections *new_tcp_connections(const uint8_t *secret_key, TCP_Proxy_Info *proxy_info)
{
if (secret_key == nullptr) {
return nullptr;
}
TCP_Connections *temp = (TCP_Connections *)calloc(1, sizeof(TCP_Connections));
if (temp == nullptr) {
return nullptr;
}
memcpy(temp->self_secret_key, secret_key, CRYPTO_SECRET_KEY_SIZE);
crypto_derive_public_key(temp->self_public_key, temp->self_secret_key);
temp->proxy_info = *proxy_info;
return temp;
}
TCP_Server *new_TCP_server(uint8_t ipv6_enabled, uint16_t num_sockets, const uint16_t *ports, const uint8_t *secret_key,
Onion *onion)
{
if (num_sockets == 0 || ports == NULL) {
return NULL;
}
if (networking_at_startup() != 0) {
return NULL;
}
TCP_Server *temp = (TCP_Server *)calloc(1, sizeof(TCP_Server));
if (temp == NULL) {
return NULL;
}
temp->socks_listening = (Socket *)calloc(num_sockets, sizeof(Socket));
if (temp->socks_listening == NULL) {
free(temp);
return NULL;
}
#ifdef TCP_SERVER_USE_EPOLL
temp->efd = epoll_create(8);
if (temp->efd == -1) {
free(temp->socks_listening);
free(temp);
return NULL;
}
#endif
uint8_t family;
if (ipv6_enabled) {
family = AF_INET6;
} else {
family = AF_INET;
}
uint32_t i;
#ifdef TCP_SERVER_USE_EPOLL
struct epoll_event ev;
#endif
for (i = 0; i < num_sockets; ++i) {
Socket sock = new_listening_TCP_socket(family, ports[i]);
if (sock_valid(sock)) {
#ifdef TCP_SERVER_USE_EPOLL
ev.events = EPOLLIN | EPOLLET;
ev.data.u64 = sock | ((uint64_t)TCP_SOCKET_LISTENING << 32);
if (epoll_ctl(temp->efd, EPOLL_CTL_ADD, sock, &ev) == -1) {
continue;
}
#endif
temp->socks_listening[temp->num_listening_socks] = sock;
++temp->num_listening_socks;
}
}
if (temp->num_listening_socks == 0) {
free(temp->socks_listening);
free(temp);
return NULL;
}
if (onion) {
temp->onion = onion;
set_callback_handle_recv_1(onion, &handle_onion_recv_1, temp);
}
memcpy(temp->secret_key, secret_key, CRYPTO_SECRET_KEY_SIZE);
crypto_derive_public_key(temp->public_key, temp->secret_key);
bs_list_init(&temp->accepted_key_list, CRYPTO_PUBLIC_KEY_SIZE, 8);
return temp;
}