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107 lines
2.4 KiB
107 lines
2.4 KiB
#ifndef ZT_MANAGEDROUTE_HPP |
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#define ZT_MANAGEDROUTE_HPP |
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#include <stdlib.h> |
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#include <string.h> |
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#include "../node/InetAddress.hpp" |
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#include "../node/Utils.hpp" |
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#include <stdexcept> |
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#include <vector> |
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namespace ZeroTier { |
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/** |
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* A ZT-managed route that used C++ RAII semantics to automatically clean itself up on deallocate |
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*/ |
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class ManagedRoute |
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{ |
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public: |
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ManagedRoute() |
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{ |
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_device[0] = (char)0; |
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_systemDevice[0] = (char)0; |
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_applied = false; |
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} |
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~ManagedRoute() |
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{ |
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this->remove(); |
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} |
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ManagedRoute(const ManagedRoute &r) |
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{ |
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_applied = false; |
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*this = r; |
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} |
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inline ManagedRoute &operator=(const ManagedRoute &r) |
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{ |
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if ((!_applied)&&(!r._applied)) { |
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memcpy(this,&r,sizeof(ManagedRoute)); // InetAddress is memcpy'able |
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} else { |
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fprintf(stderr,"Applied ManagedRoute isn't copyable!\n"); |
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abort(); |
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} |
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return *this; |
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} |
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/** |
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* Initialize object and set route |
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* |
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* Note: on Windows, use the interface NET_LUID in hexadecimal as the |
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* "device name." |
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* |
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* @param target Route target (e.g. 0.0.0.0/0 for default) |
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* @param via Route next L3 hop or NULL InetAddress if local in which case it will be routed via device |
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* @param device Name or hex LUID of ZeroTier device (e.g. zt#) |
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* @return True if route was successfully set |
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*/ |
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inline bool set(const InetAddress &target,const InetAddress &via,const char *device) |
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{ |
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if ((!via)&&(!device[0])) |
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return false; |
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this->remove(); |
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_target = target; |
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_via = via; |
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Utils::scopy(_device,sizeof(_device),device); |
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return this->sync(); |
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} |
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/** |
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* Set or update currently set route |
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* |
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* This must be called periodically for routes that shadow others so that |
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* shadow routes can be updated. In some cases it has no effect |
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* |
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* @return True if route add/update was successful |
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*/ |
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bool sync(); |
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/** |
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* Remove and clear this ManagedRoute |
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* |
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* This does nothing if this ManagedRoute is not set or has already been |
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* removed. If this is not explicitly called it is called automatically on |
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* destruct. |
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*/ |
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void remove(); |
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inline const InetAddress &target() const { return _target; } |
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inline const InetAddress &via() const { return _via; } |
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inline const char *device() const { return _device; } |
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private: |
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InetAddress _target; |
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InetAddress _via; |
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InetAddress _systemVia; // for route overrides |
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char _device[128]; |
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char _systemDevice[128]; // for route overrides |
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bool _applied; |
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}; |
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} // namespace ZeroTier |
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#endif
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