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Add custom management plane for 3rd party vendors

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Joseph Henry 2025-02-26 10:27:23 -08:00
commit cd191778c2
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8 changed files with 874 additions and 9 deletions
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osdep/ExtOsdep.hpp Normal file
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#ifndef ZT_EXTOSDEP_HPP
#define ZT_EXTOSDEP_HPP
#ifdef ZT_EXTOSDEP
#define ZT_EOD_MAXMSGSIZE (64 * 1024)
#define ZT_EOD_MSG_STARTED 1 // no data
#define ZT_EOD_MSG_ADDTAP 2
#define ZT_EOD_MSG_ADDTAPRESP 3
#define ZT_EOD_MSG_DELTAP 4
#define ZT_EOD_MSG_DELTAPRESP 5 // no data
#define ZT_EOD_MSG_SETMTU 6
#define ZT_EOD_MSG_SETMTURESP 7
#define ZT_EOD_MSG_ADDIP 8
#define ZT_EOD_MSG_ADDIPRESP 9
#define ZT_EOD_MSG_DELIP 10
#define ZT_EOD_MSG_DELIPRESP 11
#define ZT_EOD_MSG_GETIPS 12
#define ZT_EOD_MSG_GETIPSRESP 13
#define ZT_EOD_MSG_GETBINDADDRS 14
#define ZT_EOD_MSG_GETBINDADDRSRESP 15
#define ZT_EOD_MSG_ADDROUTE 16
#define ZT_EOD_MSG_ADDROUTERESP 17
#define ZT_EOD_MSG_DELROUTE 18
#define ZT_EOD_MSG_DELROUTERESP 19
struct zt_eod_msg_addtap {
unsigned char cmd;
uint64_t nwid;
uint32_t mtu;
uint32_t metric;
char fname[128];
unsigned char mac[6];
} __attribute__((packed));
struct zt_eod_msg_addtapresp {
unsigned char cmd;
char name[16];
} __attribute__((packed));
struct zt_eod_msg_deltap {
unsigned char cmd;
char name[16];
} __attribute__((packed));
struct zt_eod_msg_setmtu {
unsigned char cmd;
char name[16];
unsigned mtu;
} __attribute__((packed));
struct zt_eod_msg_ip {
unsigned char cmd;
char name[16];
unsigned char afi; // 1 ip, 2 ip6
unsigned char len; // bits in mask
unsigned char data[16];
} __attribute__((packed));
struct zt_eod_msg_getips {
unsigned char cmd;
char name[16];
} __attribute__((packed));
struct zt_eod_msg_getipsresp {
unsigned char cmd;
struct addr {
unsigned char afi;
unsigned char len;
unsigned char data[16];
} __attribute__((packed)) addrs[0];
} __attribute__((packed));
#define ZT_EOD_GETIPSRESP_MAXADDRS ((ZT_EOD_MAXMSGSIZE - sizeof(zt_eod_msg_getipsresp)) / sizeof(zt_eod_msg_getipsresp::addr))
struct zt_eod_msg_getbindaddrsresp {
unsigned char cmd;
unsigned char result;
struct addr {
unsigned char afi;
unsigned char len;
unsigned char data[16];
char ifname[16];
} __attribute__((packed)) addrs[0];
} __attribute__((packed));
#define ZT_EOD_GETBINDADDRSRESP_MAXADDRS ((ZT_EOD_MAXMSGSIZE - sizeof(zt_eod_msg_getbindaddrsresp)) / sizeof(zt_eod_msg_getbindaddrsresp::addr))
struct zt_eod_msg_route {
unsigned char cmd;
unsigned char afi; // 1 ip, 2 ip6
unsigned char dstlen;
unsigned char dst[16];
unsigned char gw[16];
char dev[16];
unsigned char src[16];
} __attribute__((packed));
struct zt_eod_mgmt_req {
uint32_t method;
uint32_t pathlen;
uint32_t datalen;
unsigned char data[0];
} __attribute__((packed));
struct zt_eod_mgmt_reply {
uint32_t scode;
uint32_t datalen;
unsigned char data[0];
} __attribute__((packed));
#ifndef ZT_EXTOSDEP_IFACEONLY
#include "../node/InetAddress.hpp"
#include "../node/MAC.hpp"
#include "Thread.hpp"
#include "../node/Hashtable.hpp"
#include "../node/Mutex.hpp"
#include "../node/AtomicCounter.hpp"
#include "EthernetTap.hpp"
#include "BlockingQueue.hpp"
#include <atomic>
#include <thread>
#include <mutex>
#include <functional>
#include <string>
namespace ZeroTier {
class ExtOsdep {
public:
static void init(int, int);
static void started(int *, void **);
static void routeAddDel(bool, const InetAddress &target, const InetAddress &via, const InetAddress &src, const char *ifaceName);
static bool getBindAddrs(std::map<InetAddress,std::string> &);
static bool mgmtRecv(void *cookie, void *data, unsigned long len,
std::function<unsigned (unsigned, const std::string &, const std::string &, std::string &)>);
static bool mgmtWritable(void *);
};
class ExtOsdepTap : public EthernetTap
{
public:
ExtOsdepTap(
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);
virtual ~ExtOsdepTap();
virtual void setEnabled(bool en);
virtual bool enabled() const;
virtual bool addIp(const InetAddress &ip);
virtual bool addIps(std::vector<InetAddress> ips);
virtual bool removeIp(const InetAddress &ip);
virtual std::vector<InetAddress> ips() const;
virtual void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len);
virtual std::string deviceName() const;
virtual void setFriendlyName(const char *friendlyName);
virtual void scanMulticastGroups(std::vector<MulticastGroup> &added,std::vector<MulticastGroup> &removed);
virtual void setMtu(unsigned int mtu);
virtual void setDns(const char *domain, const std::vector<InetAddress> &servers) {}
private:
void (*_handler)(void *,void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int);
void *_arg;
uint64_t _nwid;
MAC _mac;
std::string _homePath;
std::string _dev;
std::vector<MulticastGroup> _multicastGroups;
unsigned int _mtu;
int _fd;
int _shutdownSignalPipe[2];
std::atomic_bool _enabled;
std::atomic_bool _run;
std::thread _tapReaderThread[2];
std::thread _tapProcessorThread;
std::mutex _buffers_l;
std::vector<void *> _buffers;
BlockingQueue< std::pair<void *,int> > _tapq;
AtomicCounter _tapqsize;
std::vector<InetAddress> allIps;
void doRemoveIp(const InetAddress &);
};
} // namespace ZeroTier
#endif // ZT_EXTOSDEP_IFACEONLY
#endif // ZT_EXTOSDEP
#endif