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Adam Ierymenko 2025-07-03 12:02:18 -04:00
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194
osdep/LinuxNetLink.hpp
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@ -39,125 +39,125 @@ namespace ZeroTier {
*/
class LinuxNetLink {
private:
LinuxNetLink();
~LinuxNetLink();
LinuxNetLink();
~LinuxNetLink();
public:
struct Route {
InetAddress target;
InetAddress via;
InetAddress src;
int ifidx;
struct Route {
InetAddress target;
InetAddress via;
InetAddress src;
int ifidx;
inline bool operator==(const Route& r) const
{
return ((target == r.target) && (via == r.via) && (src == r.src) && (ifidx == r.ifidx));
}
inline bool operator!=(const Route& r) const
{
return (! (*this == r));
}
inline bool operator<(const Route& r) const
{
if (target < r.target) {
return true;
}
else if (target == r.target) {
if (via < r.via) {
return true;
}
else if (via == r.via) {
if (src < r.src) {
return true;
}
else if (src == r.src) {
return (ifidx < r.ifidx);
}
}
}
return false;
}
inline bool operator>(const Route& r) const
{
return (r < *this);
}
inline bool operator<=(const Route& r) const
{
return ! (r < *this);
}
inline bool operator>=(const Route& r) const
{
return ! (*this < r);
}
};
inline bool operator==(const Route& r) const
{
return ((target == r.target) && (via == r.via) && (src == r.src) && (ifidx == r.ifidx));
}
inline bool operator!=(const Route& r) const
{
return (! (*this == r));
}
inline bool operator<(const Route& r) const
{
if (target < r.target) {
return true;
}
else if (target == r.target) {
if (via < r.via) {
return true;
}
else if (via == r.via) {
if (src < r.src) {
return true;
}
else if (src == r.src) {
return (ifidx < r.ifidx);
}
}
}
return false;
}
inline bool operator>(const Route& r) const
{
return (r < *this);
}
inline bool operator<=(const Route& r) const
{
return ! (r < *this);
}
inline bool operator>=(const Route& r) const
{
return ! (*this < r);
}
};
static LinuxNetLink& getInstance()
{
static LinuxNetLink instance;
return instance;
}
static LinuxNetLink& getInstance()
{
static LinuxNetLink instance;
return instance;
}
LinuxNetLink(LinuxNetLink const&) = delete;
void operator=(LinuxNetLink const&) = delete;
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);
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);
void addAddress(const InetAddress& addr, const char* iface);
void removeAddress(const InetAddress& addr, const char* iface);
void addAddress(const InetAddress& addr, const char* iface);
void removeAddress(const InetAddress& addr, const char* iface);
bool routeIsSet(const InetAddress& target, const InetAddress& via, const InetAddress& src, const char* ifname);
bool routeIsSet(const InetAddress& target, const InetAddress& via, const InetAddress& src, const char* ifname);
void threadMain() throw();
void threadMain() throw();
private:
int _doRecv(int fd);
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 _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();
void _requestInterfaceList();
void _requestIPv4Routes();
void _requestIPv6Routes();
int _indexForInterface(const char* iface);
int _indexForInterface(const char* iface);
void _setSocketTimeout(int fd, int seconds = 1);
void _setSocketTimeout(int fd, int seconds = 1);
Thread _t;
bool _running;
Thread _t;
bool _running;
uint32_t _seq;
uint32_t _seq;
std::map<InetAddress, std::set<LinuxNetLink::Route> > _routes;
Mutex _routes_m;
std::map<InetAddress, std::set<LinuxNetLink::Route> > _routes;
Mutex _routes_m;
struct iface_entry {
iface_entry()
{
memset(this, 0, sizeof(iface_entry));
}
int index;
char ifacename[16]; // IFNAMSIZ on Linux == 16
char mac[18];
char mac_bin[6];
unsigned int mtu;
};
Hashtable<int, iface_entry> _interfaces;
Mutex _if_m;
struct iface_entry {
iface_entry()
{
memset(this, 0, sizeof(iface_entry));
}
int index;
char ifacename[16]; // IFNAMSIZ on Linux == 16
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;
// socket communication vars;
int _fd;
struct sockaddr_nl _la;
};
} // namespace ZeroTier
} // namespace ZeroTier
#endif
#endif // ZT_LINUX_NETLINK_HPPS
#endif // ZT_LINUX_NETLINK_HPPS