mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-22 06:17:48 +00:00
107 lines
2.3 KiB
C++
107 lines
2.3 KiB
C++
/*
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* Copyright (c)2019 ZeroTier, Inc.
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*
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* Use of this software is governed by the Business Source License included
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* in the LICENSE.TXT file in the project's root directory.
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*
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* Change Date: 2025-01-01
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*
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* On the date above, in accordance with the Business Source License, use
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* of this software will be governed by version 2.0 of the Apache License.
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*/
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/****/
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#ifndef ZT_LINUX_NETLINK_HPP
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#define ZT_LINUX_NETLINK_HPP
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#include "../node/Constants.hpp"
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#ifdef __LINUX__
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#include <vector>
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#include <sys/socket.h>
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#include <asm/types.h>
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#include <linux/rtnetlink.h>
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#include <sys/socket.h>
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#include <linux/if.h>
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#include "../node/InetAddress.hpp"
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#include "../node/MAC.hpp"
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#include "Thread.hpp"
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#include "../node/Hashtable.hpp"
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#include "../node/Mutex.hpp"
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namespace ZeroTier {
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/**
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* Interface with Linux's RTNETLINK
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*/
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class LinuxNetLink
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{
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private:
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LinuxNetLink();
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~LinuxNetLink();
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public:
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static LinuxNetLink& getInstance()
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{
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static LinuxNetLink instance;
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return instance;
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}
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LinuxNetLink(LinuxNetLink const&) = delete;
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void operator=(LinuxNetLink const&) = delete;
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void addRoute(const InetAddress &target, const InetAddress &via, const InetAddress &src, const char *ifaceName);
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void delRoute(const InetAddress &target, const InetAddress &via, const InetAddress &src, const char *ifaceName);
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void addAddress(const InetAddress &addr, const char *iface);
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void removeAddress(const InetAddress &addr, const char *iface);
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void threadMain() throw();
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private:
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int _doRecv(int fd);
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void _processMessage(struct nlmsghdr *nlp, int nll);
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void _routeAdded(struct nlmsghdr *nlp);
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void _routeDeleted(struct nlmsghdr *nlp);
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void _linkAdded(struct nlmsghdr *nlp);
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void _linkDeleted(struct nlmsghdr *nlp);
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void _ipAddressAdded(struct nlmsghdr *nlp);
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void _ipAddressDeleted(struct nlmsghdr *nlp);
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void _requestInterfaceList();
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void _requestIPv4Routes();
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void _requestIPv6Routes();
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int _indexForInterface(const char *iface);
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void _setSocketTimeout(int fd, int seconds = 1);
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Thread _t;
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bool _running;
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uint32_t _seq;
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struct iface_entry {
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int index;
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char ifacename[IFNAMSIZ];
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char mac[18];
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char mac_bin[6];
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unsigned int mtu;
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};
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Hashtable<int, iface_entry> _interfaces;
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Mutex _if_m;
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// socket communication vars;
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int _fd;
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struct sockaddr_nl _la;
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};
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}
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#endif
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#endif // ZT_LINUX_NETLINK_HPPS
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