mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-30 09:48:54 +00:00
116 lines
2.7 KiB
C++
116 lines
2.7 KiB
C++
/*
|
|
* Copyright (c)2019 ZeroTier, Inc.
|
|
*
|
|
* Use of this software is governed by the Business Source License included
|
|
* in the LICENSE.TXT file in the project's root directory.
|
|
*
|
|
* Change Date: 2023-01-01
|
|
*
|
|
* On the date above, in accordance with the Business Source License, use
|
|
* of this software will be governed by version 2.0 of the Apache License.
|
|
*/
|
|
/****/
|
|
|
|
#ifndef ZT_LINUX_NETLINK_HPP
|
|
#define ZT_LINUX_NETLINK_HPP
|
|
|
|
#include <vector>
|
|
|
|
#include <sys/socket.h>
|
|
#include <asm/types.h>
|
|
#include <linux/rtnetlink.h>
|
|
#include <sys/socket.h>
|
|
#include <linux/if.h>
|
|
|
|
#include "../node/InetAddress.hpp"
|
|
#include "../node/MAC.hpp"
|
|
#include "Thread.hpp"
|
|
#include "../node/Hashtable.hpp"
|
|
#include "../node/Mutex.hpp"
|
|
|
|
|
|
namespace ZeroTier {
|
|
|
|
struct route_entry {
|
|
InetAddress target;
|
|
InetAddress via;
|
|
int if_index;
|
|
char iface[IFNAMSIZ];
|
|
};
|
|
typedef std::vector<route_entry> RouteList;
|
|
|
|
/**
|
|
* Interface with Linux's RTNETLINK
|
|
*/
|
|
class LinuxNetLink
|
|
{
|
|
private:
|
|
LinuxNetLink();
|
|
~LinuxNetLink();
|
|
|
|
public:
|
|
static LinuxNetLink& getInstance()
|
|
{
|
|
static LinuxNetLink instance;
|
|
return instance;
|
|
}
|
|
|
|
LinuxNetLink(LinuxNetLink const&) = delete;
|
|
void operator=(LinuxNetLink const&) = delete;
|
|
|
|
void addRoute(const InetAddress &target, const InetAddress &via, const InetAddress &src, const char *ifaceName);
|
|
void delRoute(const InetAddress &target, const InetAddress &via, const InetAddress &src, const char *ifaceName);
|
|
RouteList getIPV4Routes() const;
|
|
RouteList getIPV6Routes() const;
|
|
|
|
void addAddress(const InetAddress &addr, const char *iface);
|
|
void removeAddress(const InetAddress &addr, const char *iface);
|
|
|
|
void threadMain() throw();
|
|
private:
|
|
int _doRecv(int fd);
|
|
|
|
void _processMessage(struct nlmsghdr *nlp, int nll);
|
|
void _routeAdded(struct nlmsghdr *nlp);
|
|
void _routeDeleted(struct nlmsghdr *nlp);
|
|
void _linkAdded(struct nlmsghdr *nlp);
|
|
void _linkDeleted(struct nlmsghdr *nlp);
|
|
void _ipAddressAdded(struct nlmsghdr *nlp);
|
|
void _ipAddressDeleted(struct nlmsghdr *nlp);
|
|
|
|
void _requestInterfaceList();
|
|
void _requestIPv4Routes();
|
|
void _requestIPv6Routes();
|
|
|
|
int _indexForInterface(const char *iface);
|
|
|
|
void _setSocketTimeout(int fd, int seconds = 1);
|
|
|
|
Thread _t;
|
|
bool _running;
|
|
|
|
RouteList _routes_ipv4;
|
|
Mutex _rv4_m;
|
|
RouteList _routes_ipv6;
|
|
Mutex _rv6_m;
|
|
|
|
uint32_t _seq;
|
|
|
|
struct iface_entry {
|
|
int index;
|
|
char ifacename[IFNAMSIZ];
|
|
char mac[18];
|
|
char mac_bin[6];
|
|
unsigned int mtu;
|
|
};
|
|
Hashtable<int, iface_entry> _interfaces;
|
|
Mutex _if_m;
|
|
|
|
// socket communication vars;
|
|
int _fd;
|
|
struct sockaddr_nl _la;
|
|
};
|
|
|
|
}
|
|
|
|
#endif // ZT_LINUX_NETLINK_HPPS
|