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| author | Adam Ierymenko <adam.ierymenko@gmail.com> | 2016-09-14 16:55:25 -0700 |
|---|---|---|
| committer | Adam Ierymenko <adam.ierymenko@gmail.com> | 2016-09-14 16:55:25 -0700 |
| commit | 15402933bc93f930f9767f6b2fb16fdb29c3c50e (patch) | |
| tree | 09a6a43e994d6354acd4742f7987e054f741c0d1 | |
| parent | 8d0b2b781e30f4a953b2ea5810249c7266f02b30 (diff) | |
| download | infinitytier-15402933bc93f930f9767f6b2fb16fdb29c3c50e.tar.gz infinitytier-15402933bc93f930f9767f6b2fb16fdb29c3c50e.zip | |
Add physical MTU recommendation hint to network config via API.
| -rw-r--r-- | include/ZeroTierOne.h | 8 | ||||
| -rw-r--r-- | node/Network.cpp | 1 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/ZeroTierOne.h b/include/ZeroTierOne.h index e4ea92b4..e0f6ca28 100644 --- a/include/ZeroTierOne.h +++ b/include/ZeroTierOne.h @@ -978,6 +978,11 @@ typedef struct unsigned int mtu; /** + * Recommended MTU to avoid fragmentation at the physical layer (hint) + */ + unsigned int physicalMtu; + + /** * If nonzero, the network this port belongs to indicates DHCP availability * * This is a suggestion. The underlying implementation is free to ignore it @@ -1604,6 +1609,9 @@ typedef int (*ZT_PathCheckFunction)( * Note that this can take a few seconds the first time it's called, as it * will generate an identity. * + * TODO: should consolidate function pointers into versioned structure for + * better API stability. + * * @param node Result: pointer is set to new node instance on success * @param uptr User pointer to pass to functions/callbacks * @param now Current clock in milliseconds diff --git a/node/Network.cpp b/node/Network.cpp index 5e3dae90..22aca0d8 100644 --- a/node/Network.cpp +++ b/node/Network.cpp @@ -1224,6 +1224,7 @@ void Network::_externalConfig(ZT_VirtualNetworkConfig *ec) const ec->status = _status(); ec->type = (_config) ? (_config.isPrivate() ? ZT_NETWORK_TYPE_PRIVATE : ZT_NETWORK_TYPE_PUBLIC) : ZT_NETWORK_TYPE_PRIVATE; ec->mtu = ZT_IF_MTU; + ec->physicalMtu = ZT_UDP_DEFAULT_PAYLOAD_MTU - (ZT_PACKET_IDX_PAYLOAD + 16); ec->dhcp = 0; std::vector<Address> ab(_config.activeBridges()); ec->bridge = ((_config.allowPassiveBridging())||(std::find(ab.begin(),ab.end(),RR->identity.address()) != ab.end())) ? 1 : 0; |