dynamic loading of network stack no longer needed
This commit is contained in:
Joseph Henry
244
src/SocketTap.hpp
Normal file
244
src/SocketTap.hpp
Normal file
@@ -0,0 +1,244 @@
|
||||
/*
|
||||
* ZeroTier One - Network Virtualization Everywhere
|
||||
* Copyright (C) 2011-2015 ZeroTier, Inc.
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*
|
||||
* --
|
||||
*
|
||||
* ZeroTier may be used and distributed under the terms of the GPLv3, which
|
||||
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
|
||||
*
|
||||
* If you would like to embed ZeroTier into a commercial application or
|
||||
* redistribute it in a modified binary form, please contact ZeroTier Networks
|
||||
* LLC. Start here: http://www.zerotier.com/
|
||||
*/
|
||||
|
||||
#ifndef ZT_SocketTap_HPP
|
||||
#define ZT_SocketTap_HPP
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
#include <utility>
|
||||
#include <stdexcept>
|
||||
#include <stdint.h>
|
||||
|
||||
#include "Constants.hpp"
|
||||
#include "MulticastGroup.hpp"
|
||||
#include "Mutex.hpp"
|
||||
#include "InetAddress.hpp"
|
||||
#include "Thread.hpp"
|
||||
#include "Phy.hpp"
|
||||
|
||||
#include "ZeroTierSDK.h"
|
||||
#include "RPC.h"
|
||||
#include "picoTCP.hpp"
|
||||
|
||||
#include "pico_protocol.h"
|
||||
#include "pico_stack.h"
|
||||
#include "pico_ipv4.h"
|
||||
#include "pico_icmp4.h"
|
||||
#include "pico_dev_tap.h"
|
||||
#include "pico_protocol.h"
|
||||
#include "pico_socket.h"
|
||||
#include "pico_device.h"
|
||||
#include "pico_ipv6.h"
|
||||
|
||||
// ZT RPC structs
|
||||
struct socket_st;
|
||||
struct listen_st;
|
||||
struct bind_st;
|
||||
struct connect_st;
|
||||
struct getsockname_st;
|
||||
struct accept_st;
|
||||
|
||||
struct pico_socket;
|
||||
|
||||
namespace ZeroTier {
|
||||
|
||||
class SocketTap;
|
||||
|
||||
extern SocketTap *picotap;
|
||||
|
||||
/*
|
||||
* TCP connection
|
||||
*/
|
||||
struct Connection
|
||||
{
|
||||
bool listening, probation, disabled;
|
||||
int pid, txsz, rxsz, type;
|
||||
PhySocket *rpcSock, *sock;
|
||||
struct tcp_pcb *TCP_pcb;
|
||||
struct udp_pcb *UDP_pcb;
|
||||
struct sockaddr_storage *local_addr; // Address we've bound to locally
|
||||
struct sockaddr_storage *peer_addr; // Address of connection call to remote host
|
||||
unsigned short port;
|
||||
unsigned char txbuf[DEFAULT_TCP_TX_BUF_SZ];
|
||||
unsigned char rxbuf[DEFAULT_TCP_RX_BUF_SZ];
|
||||
// pico
|
||||
struct pico_socket *picosock;
|
||||
};
|
||||
|
||||
/*
|
||||
* A helper for passing a reference to _phy to LWIP callbacks as a "state"
|
||||
*/
|
||||
struct Larg
|
||||
{
|
||||
SocketTap *tap;
|
||||
Connection *conn;
|
||||
Larg(SocketTap *_tap, Connection *conn) : tap(_tap), conn(conn) {}
|
||||
};
|
||||
|
||||
/*
|
||||
* Network Containers instance -- emulates an Ethernet tap device as far as OneService knows
|
||||
*/
|
||||
class SocketTap
|
||||
{
|
||||
friend class Phy<SocketTap *>;
|
||||
|
||||
public:
|
||||
SocketTap(
|
||||
const char *homePath,
|
||||
const MAC &mac,
|
||||
unsigned int mtu,
|
||||
unsigned int metric,
|
||||
uint64_t nwid,
|
||||
const char *friendlyName,
|
||||
void (*handler)(void *, void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int),
|
||||
void *arg);
|
||||
|
||||
~SocketTap();
|
||||
|
||||
void setEnabled(bool en);
|
||||
bool enabled() const;
|
||||
bool addIp(const InetAddress &ip);
|
||||
bool removeIp(const InetAddress &ip);
|
||||
std::vector<InetAddress> ips() const;
|
||||
std::vector<InetAddress> _ips;
|
||||
|
||||
void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len);
|
||||
std::string deviceName() const;
|
||||
void setFriendlyName(const char *friendlyName);
|
||||
void scanMulticastGroups(std::vector<MulticastGroup> &added,std::vector<MulticastGroup> &removed);
|
||||
|
||||
int sendReturnValue(int fd, int retval, int _errno);
|
||||
void unloadRPC(void *data, pid_t &pid, pid_t &tid, char (timestamp[RPC_TIMESTAMP_SZ]), char (CANARY[sizeof(uint64_t)]), char &cmd, void* &payload);
|
||||
|
||||
void threadMain()
|
||||
throw();
|
||||
|
||||
std::string _homePath;
|
||||
MAC _mac;
|
||||
unsigned int _mtu;
|
||||
uint64_t _nwid;
|
||||
void (*_handler)(void *,void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int);
|
||||
void *_arg;
|
||||
Phy<SocketTap *> _phy;
|
||||
PhySocket *_unixListenSocket;
|
||||
volatile bool _enabled;
|
||||
volatile bool _run;
|
||||
|
||||
// picoTCP
|
||||
unsigned char pico_frame_rxbuf[MAX_PICO_FRAME_RX_BUF_SZ];
|
||||
int pico_frame_rxbuf_tot;
|
||||
Mutex _pico_frame_rxbuf_m;
|
||||
|
||||
void handleBind(PhySocket *sock, PhySocket *rpcsock, void **uptr, struct bind_st *bind_rpc);
|
||||
void handleListen(PhySocket *sock, PhySocket *rpcsock, void **uptr, struct listen_st *listen_rpc);
|
||||
Connection * handleSocket(PhySocket *sock, void **uptr, struct socket_st* socket_rpc);
|
||||
void handleConnect(PhySocket *sock, PhySocket *rpcsock, Connection *conn, struct connect_st* connect_rpc);
|
||||
|
||||
// void handleIsConnected();
|
||||
|
||||
/*
|
||||
* Return the address that the socket is bound to
|
||||
*/
|
||||
void handleGetsockname(PhySocket *sock, PhySocket *rpcsock, void **uptr, struct getsockname_st *getsockname_rpc);
|
||||
|
||||
/*
|
||||
* Return the address of the peer connected to this socket
|
||||
*/
|
||||
void handleGetpeername(PhySocket *sock, PhySocket *rpcsock, void **uptr, struct getsockname_st *getsockname_rpc);
|
||||
|
||||
/*
|
||||
* Writes data from the application's socket to the LWIP connection
|
||||
*/
|
||||
void handleWrite(Connection *conn);
|
||||
|
||||
// Unused -- no UDP or TCP from this thread/Phy<>
|
||||
void phyOnDatagram(PhySocket *sock,void **uptr,const struct sockaddr *local_address, const struct sockaddr *from,void *data,unsigned long len);
|
||||
void phyOnTcpConnect(PhySocket *sock,void **uptr,bool success);
|
||||
void phyOnTcpAccept(PhySocket *sockL,PhySocket *sockN,void **uptrL,void **uptrN,const struct sockaddr *from);
|
||||
void phyOnTcpClose(PhySocket *sock,void **uptr);
|
||||
void phyOnTcpData(PhySocket *sock,void **uptr,void *data,unsigned long len);
|
||||
void phyOnTcpWritable(PhySocket *sock,void **uptr, bool stack_invoked);
|
||||
|
||||
void handleRead(PhySocket *sock,void **uptr,bool stack_invoked);
|
||||
|
||||
/*
|
||||
* Signals us to close the TcpConnection associated with this PhySocket
|
||||
*/
|
||||
void phyOnUnixClose(PhySocket *sock,void **uptr);
|
||||
|
||||
/*
|
||||
* Notifies us that there is data to be read from an application's socket
|
||||
*/
|
||||
void phyOnUnixData(PhySocket *sock,void **uptr,void *data,ssize_t len);
|
||||
|
||||
/*
|
||||
* Notifies us that we can write to an application's socket
|
||||
*/
|
||||
void phyOnUnixWritable(PhySocket *sock,void **uptr,bool lwip_invoked);
|
||||
|
||||
/*
|
||||
* Returns a pointer to a TcpConnection associated with a given PhySocket
|
||||
*/
|
||||
Connection *getConnection(PhySocket *sock);
|
||||
|
||||
/*
|
||||
* Returns a pointer to a TcpConnection associated with a given pico_socket
|
||||
*/
|
||||
Connection *getConnection(struct pico_socket *socket);
|
||||
|
||||
/*
|
||||
* Closes a TcpConnection, associated LWIP PCB strcuture,
|
||||
* PhySocket, and underlying file descriptor
|
||||
*/
|
||||
void closeConnection(PhySocket *sock);
|
||||
|
||||
|
||||
|
||||
picoTCP *picostack;
|
||||
|
||||
|
||||
std::vector<Connection*> _Connections;
|
||||
|
||||
std::map<uint64_t, std::pair<PhySocket*, void*> > jobmap;
|
||||
pid_t rpcCounter;
|
||||
|
||||
Thread _thread;
|
||||
std::string _dev; // path to Unix domain socket
|
||||
|
||||
std::vector<MulticastGroup> _multicastGroups;
|
||||
Mutex _multicastGroups_m;
|
||||
|
||||
Mutex _ips_m, _tcpconns_m, _rx_buf_m, _close_m;
|
||||
|
||||
};
|
||||
|
||||
} // namespace ZeroTier
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user