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-rw-r--r--thirdparty/enet/enet/enet.h2
-rw-r--r--thirdparty/enet/godot.cpp375
2 files changed, 321 insertions, 56 deletions
diff --git a/thirdparty/enet/enet/enet.h b/thirdparty/enet/enet/enet.h
index 966e3a465d..ac7552adb2 100644
--- a/thirdparty/enet/enet/enet.h
+++ b/thirdparty/enet/enet/enet.h
@@ -578,6 +578,8 @@ ENET_API void enet_host_channel_limit (ENetHost *, size_t);
ENET_API void enet_host_bandwidth_limit (ENetHost *, enet_uint32, enet_uint32);
extern void enet_host_bandwidth_throttle (ENetHost *);
extern enet_uint32 enet_host_random_seed (void);
+ENET_API void enet_host_dtls_server_setup (ENetHost *, void *, void *);
+ENET_API void enet_host_dtls_client_setup (ENetHost *, void *, uint8_t, const char *);
ENET_API int enet_peer_send (ENetPeer *, enet_uint8, ENetPacket *);
ENET_API ENetPacket * enet_peer_receive (ENetPeer *, enet_uint8 * channelID);
diff --git a/thirdparty/enet/godot.cpp b/thirdparty/enet/godot.cpp
index 72310fb9a2..9fefa53e77 100644
--- a/thirdparty/enet/godot.cpp
+++ b/thirdparty/enet/godot.cpp
@@ -32,13 +32,313 @@
@brief ENet Godot specific functions
*/
+#include "core/io/dtls_server.h"
#include "core/io/ip.h"
#include "core/io/net_socket.h"
+#include "core/io/packet_peer_dtls.h"
+#include "core/io/udp_server.h"
#include "core/os/os.h"
// This must be last for windows to compile (tested with MinGW)
#include "enet/enet.h"
+/// Abstract ENet interface for UDP/DTLS.
+class ENetGodotSocket {
+
+public:
+ virtual Error bind(IP_Address p_ip, uint16_t p_port) = 0;
+ virtual Error sendto(const uint8_t *p_buffer, int p_len, int &r_sent, IP_Address p_ip, uint16_t p_port) = 0;
+ virtual Error recvfrom(uint8_t *p_buffer, int p_len, int &r_read, IP_Address &r_ip, uint16_t &r_port) = 0;
+ virtual int set_option(ENetSocketOption p_option, int p_value) = 0;
+ virtual void close() = 0;
+ virtual ~ENetGodotSocket(){};
+};
+
+class ENetDTLSClient;
+class ENetDTLSServer;
+
+/// NetSocket interface
+class ENetUDP : public ENetGodotSocket {
+
+ friend class ENetDTLSClient;
+ friend class ENetDTLSServer;
+
+private:
+ Ref<NetSocket> sock;
+ IP_Address address;
+ uint16_t port;
+ bool bound;
+
+public:
+ ENetUDP() {
+ sock = Ref<NetSocket>(NetSocket::create());
+ IP::Type ip_type = IP::TYPE_ANY;
+ bound = false;
+ sock->open(NetSocket::TYPE_UDP, ip_type);
+ }
+
+ ~ENetUDP() {
+ sock->close();
+ }
+
+ Error bind(IP_Address p_ip, uint16_t p_port) {
+ address = p_ip;
+ port = p_port;
+ bound = true;
+ return sock->bind(address, port);
+ }
+
+ Error sendto(const uint8_t *p_buffer, int p_len, int &r_sent, IP_Address p_ip, uint16_t p_port) {
+ return sock->sendto(p_buffer, p_len, r_sent, p_ip, p_port);
+ }
+
+ Error recvfrom(uint8_t *p_buffer, int p_len, int &r_read, IP_Address &r_ip, uint16_t &r_port) {
+ Error err = sock->poll(NetSocket::POLL_TYPE_IN, 0);
+ if (err != OK)
+ return err;
+ return sock->recvfrom(p_buffer, p_len, r_read, r_ip, r_port);
+ }
+
+ int set_option(ENetSocketOption p_option, int p_value) {
+ switch (p_option) {
+ case ENET_SOCKOPT_NONBLOCK: {
+ sock->set_blocking_enabled(p_value ? false : true);
+ return 0;
+ } break;
+
+ case ENET_SOCKOPT_BROADCAST: {
+ sock->set_broadcasting_enabled(p_value ? true : false);
+ return 0;
+ } break;
+
+ case ENET_SOCKOPT_REUSEADDR: {
+ sock->set_reuse_address_enabled(p_value ? true : false);
+ return 0;
+ } break;
+
+ case ENET_SOCKOPT_RCVBUF: {
+ return -1;
+ } break;
+
+ case ENET_SOCKOPT_SNDBUF: {
+ return -1;
+ } break;
+
+ case ENET_SOCKOPT_RCVTIMEO: {
+ return -1;
+ } break;
+
+ case ENET_SOCKOPT_SNDTIMEO: {
+ return -1;
+ } break;
+
+ case ENET_SOCKOPT_NODELAY: {
+ sock->set_tcp_no_delay_enabled(p_value ? true : false);
+ return 0;
+ } break;
+ }
+
+ return -1;
+ }
+
+ void close() {
+ sock->close();
+ }
+};
+
+/// DTLS Client ENet interface
+class ENetDTLSClient : public ENetGodotSocket {
+
+ bool connected;
+ Ref<PacketPeerUDP> udp;
+ Ref<PacketPeerDTLS> dtls;
+ bool verify;
+ String for_hostname;
+ Ref<X509Certificate> cert;
+
+public:
+ ENetDTLSClient(ENetUDP *p_base, Ref<X509Certificate> p_cert, bool p_verify, String p_for_hostname) {
+ verify = p_verify;
+ for_hostname = p_for_hostname;
+ cert = p_cert;
+ udp.instance();
+ dtls = Ref<PacketPeerDTLS>(PacketPeerDTLS::create());
+ p_base->close();
+ if (p_base->bound) {
+ bind(p_base->address, p_base->port);
+ }
+ connected = false;
+ }
+
+ ~ENetDTLSClient() {
+ close();
+ }
+
+ Error bind(IP_Address p_ip, uint16_t p_port) {
+ return udp->listen(p_port, p_ip);
+ }
+
+ Error sendto(const uint8_t *p_buffer, int p_len, int &r_sent, IP_Address p_ip, uint16_t p_port) {
+ if (!connected) {
+ udp->connect_to_host(p_ip, p_port);
+ dtls->connect_to_peer(udp, verify, for_hostname, cert);
+ connected = true;
+ }
+ dtls->poll();
+ if (dtls->get_status() == PacketPeerDTLS::STATUS_HANDSHAKING)
+ return ERR_BUSY;
+ else if (dtls->get_status() != PacketPeerDTLS::STATUS_CONNECTED)
+ return FAILED;
+ r_sent = p_len;
+ return dtls->put_packet(p_buffer, p_len);
+ }
+
+ Error recvfrom(uint8_t *p_buffer, int p_len, int &r_read, IP_Address &r_ip, uint16_t &r_port) {
+ dtls->poll();
+ if (dtls->get_status() == PacketPeerDTLS::STATUS_HANDSHAKING)
+ return ERR_BUSY;
+ if (dtls->get_status() != PacketPeerDTLS::STATUS_CONNECTED)
+ return FAILED;
+ int pc = dtls->get_available_packet_count();
+ if (pc == 0)
+ return ERR_BUSY;
+ else if (pc < 0)
+ return FAILED;
+
+ const uint8_t *buffer;
+ Error err = dtls->get_packet(&buffer, r_read);
+ ERR_FAIL_COND_V(err != OK, err);
+ ERR_FAIL_COND_V(p_len < r_read, ERR_OUT_OF_MEMORY);
+
+ copymem(p_buffer, buffer, r_read);
+ r_ip = udp->get_packet_address();
+ r_port = udp->get_packet_port();
+ return err;
+ }
+
+ int set_option(ENetSocketOption p_option, int p_value) {
+ return -1;
+ }
+
+ void close() {
+ dtls->disconnect_from_peer();
+ udp->close();
+ }
+};
+
+/// DTLSServer - ENet interface
+class ENetDTLSServer : public ENetGodotSocket {
+
+ Ref<DTLSServer> server;
+ Ref<UDPServer> udp_server;
+ Map<String, Ref<PacketPeerDTLS> > peers;
+ int last_service;
+
+public:
+ ENetDTLSServer(ENetUDP *p_base, Ref<CryptoKey> p_key, Ref<X509Certificate> p_cert) {
+ last_service = 0;
+ udp_server.instance();
+ p_base->close();
+ if (p_base->bound) {
+ bind(p_base->address, p_base->port);
+ }
+ server = Ref<DTLSServer>(DTLSServer::create());
+ server->setup(p_key, p_cert);
+ }
+
+ ~ENetDTLSServer() {
+ close();
+ }
+
+ Error bind(IP_Address p_ip, uint16_t p_port) {
+ return udp_server->listen(p_port, p_ip);
+ }
+
+ Error sendto(const uint8_t *p_buffer, int p_len, int &r_sent, IP_Address p_ip, uint16_t p_port) {
+ String key = String(p_ip) + ":" + itos(p_port);
+ ERR_FAIL_COND_V(!peers.has(key), ERR_UNAVAILABLE);
+ Ref<PacketPeerDTLS> peer = peers[key];
+ Error err = peer->put_packet(p_buffer, p_len);
+ if (err == OK)
+ r_sent = p_len;
+ else if (err == ERR_BUSY)
+ r_sent = 0;
+ else
+ r_sent = -1;
+ return err;
+ }
+
+ Error recvfrom(uint8_t *p_buffer, int p_len, int &r_read, IP_Address &r_ip, uint16_t &r_port) {
+ // TODO limits? Maybe we can better enforce allowed connections!
+ if (udp_server->is_connection_available()) {
+ Ref<PacketPeerUDP> udp = udp_server->take_connection();
+ IP_Address peer_ip = udp->get_packet_address();
+ int peer_port = udp->get_packet_port();
+ Ref<PacketPeerDTLS> peer = server->take_connection(udp);
+ PacketPeerDTLS::Status status = peer->get_status();
+ if (status == PacketPeerDTLS::STATUS_HANDSHAKING || status == PacketPeerDTLS::STATUS_CONNECTED) {
+ String key = String(peer_ip) + ":" + itos(peer_port);
+ peers[key] = peer;
+ }
+ }
+
+ List<String> remove;
+ Error err = ERR_BUSY;
+ // TODO this needs to be fair!
+ for (Map<String, Ref<PacketPeerDTLS> >::Element *E = peers.front(); E; E = E->next()) {
+ Ref<PacketPeerDTLS> peer = E->get();
+ peer->poll();
+
+ if (peer->get_status() == PacketPeerDTLS::STATUS_HANDSHAKING)
+ continue;
+ else if (peer->get_status() != PacketPeerDTLS::STATUS_CONNECTED) {
+ // Peer disconnected, removing it.
+ remove.push_back(E->key());
+ continue;
+ }
+
+ if (peer->get_available_packet_count() > 0) {
+ const uint8_t *buffer;
+ err = peer->get_packet(&buffer, r_read);
+ if (err != OK || p_len < r_read) {
+ // Something wrong with this peer, removing it.
+ remove.push_back(E->key());
+ err = FAILED;
+ continue;
+ }
+
+ Vector<String> s = E->key().rsplit(":", false, 1);
+ ERR_CONTINUE(s.size() != 2); // BUG!
+
+ copymem(p_buffer, buffer, r_read);
+ r_ip = s[0];
+ r_port = s[1].to_int();
+ break; // err = OK
+ }
+ }
+
+ // Remove disconnected peers from map.
+ for (List<String>::Element *E = remove.front(); E; E = E->next()) {
+ peers.erase(E->get());
+ }
+
+ return err; // OK, ERR_BUSY, or possibly an error.
+ }
+
+ int set_option(ENetSocketOption p_option, int p_value) {
+ return -1;
+ }
+
+ void close() {
+ for (Map<String, Ref<PacketPeerDTLS> >::Element *E = peers.front(); E; E = E->next()) {
+ E->get()->disconnect_from_peer();
+ }
+ peers.clear();
+ udp_server->stop();
+ server->stop();
+ }
+};
+
static enet_uint32 timeBase = 0;
int enet_initialize(void) {
@@ -92,13 +392,23 @@ int enet_address_get_host(const ENetAddress *address, char *name, size_t nameLen
ENetSocket enet_socket_create(ENetSocketType type) {
- NetSocket *socket = NetSocket::create();
- IP::Type ip_type = IP::TYPE_ANY;
- socket->open(NetSocket::TYPE_UDP, ip_type);
+ ENetUDP *socket = memnew(ENetUDP);
return socket;
}
+void enet_host_dtls_server_setup(ENetHost *host, void *p_key, void *p_cert) {
+ ENetUDP *sock = (ENetUDP *)host->socket;
+ host->socket = memnew(ENetDTLSServer(sock, Ref<CryptoKey>((CryptoKey *)p_key), Ref<X509Certificate>((X509Certificate *)p_cert)));
+ memdelete(sock);
+}
+
+void enet_host_dtls_client_setup(ENetHost *host, void *p_cert, uint8_t p_verify, const char *p_for_hostname) {
+ ENetUDP *sock = (ENetUDP *)host->socket;
+ host->socket = memnew(ENetDTLSClient(sock, Ref<X509Certificate>((X509Certificate *)p_cert), p_verify, String(p_for_hostname)));
+ memdelete(sock);
+}
+
int enet_socket_bind(ENetSocket socket, const ENetAddress *address) {
IP_Address ip;
@@ -108,7 +418,7 @@ int enet_socket_bind(ENetSocket socket, const ENetAddress *address) {
ip.set_ipv6(address->host);
}
- NetSocket *sock = (NetSocket *)socket;
+ ENetGodotSocket *sock = (ENetGodotSocket *)socket;
if (sock->bind(ip, address->port) != OK) {
return -1;
}
@@ -116,7 +426,7 @@ int enet_socket_bind(ENetSocket socket, const ENetAddress *address) {
}
void enet_socket_destroy(ENetSocket socket) {
- NetSocket *sock = (NetSocket *)socket;
+ ENetGodotSocket *sock = (ENetGodotSocket *)socket;
sock->close();
memdelete(sock);
}
@@ -125,7 +435,7 @@ int enet_socket_send(ENetSocket socket, const ENetAddress *address, const ENetBu
ERR_FAIL_COND_V(address == NULL, -1);
- NetSocket *sock = (NetSocket *)socket;
+ ENetGodotSocket *sock = (ENetGodotSocket *)socket;
IP_Address dest;
Error err;
size_t i = 0;
@@ -167,15 +477,7 @@ int enet_socket_receive(ENetSocket socket, ENetAddress *address, ENetBuffer *buf
ERR_FAIL_COND_V(bufferCount != 1, -1);
- NetSocket *sock = (NetSocket *)socket;
-
- Error ret = sock->poll(NetSocket::POLL_TYPE_IN, 0);
-
- if (ret == ERR_BUSY)
- return 0;
-
- if (ret != OK)
- return -1;
+ ENetGodotSocket *sock = (ENetGodotSocket *)socket;
int read;
IP_Address ip;
@@ -215,47 +517,8 @@ int enet_socket_listen(ENetSocket socket, int backlog) {
int enet_socket_set_option(ENetSocket socket, ENetSocketOption option, int value) {
- NetSocket *sock = (NetSocket *)socket;
-
- switch (option) {
- case ENET_SOCKOPT_NONBLOCK: {
- sock->set_blocking_enabled(value ? false : true);
- return 0;
- } break;
-
- case ENET_SOCKOPT_BROADCAST: {
- sock->set_broadcasting_enabled(value ? true : false);
- return 0;
- } break;
-
- case ENET_SOCKOPT_REUSEADDR: {
- sock->set_reuse_address_enabled(value ? true : false);
- return 0;
- } break;
-
- case ENET_SOCKOPT_RCVBUF: {
- return -1;
- } break;
-
- case ENET_SOCKOPT_SNDBUF: {
- return -1;
- } break;
-
- case ENET_SOCKOPT_RCVTIMEO: {
- return -1;
- } break;
-
- case ENET_SOCKOPT_SNDTIMEO: {
- return -1;
- } break;
-
- case ENET_SOCKOPT_NODELAY: {
- sock->set_tcp_no_delay_enabled(value ? true : false);
- return 0;
- } break;
- }
-
- return -1;
+ ENetGodotSocket *sock = (ENetGodotSocket *)socket;
+ return sock->set_option(option, value);
}
int enet_socket_get_option(ENetSocket socket, ENetSocketOption option, int *value) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 06:13:16 +0000