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Improved multipath link monitoring

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This commit is contained in:
Joseph Henry 2022-09-20 14:27:34 -07:00
parent 0797adf223
commit bc521504ca
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GPG key ID: C45B33FF5EBC9344
9 changed files with 232 additions and 255 deletions
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22
osdep/Binder.hpp
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@ -66,6 +66,9 @@
// Max number of bindings
#define ZT_BINDER_MAX_BINDINGS 256
// Maximum physical interface name length. This number is gigantic because of Windows.
#define ZT_MAX_PHYSIFNAME 256
namespace ZeroTier {
/**
@ -88,6 +91,7 @@ class Binder {
PhySocket* udpSock;
PhySocket* tcpListenSock;
InetAddress address;
char ifname[256] = {};
};
public:
@ -443,7 +447,7 @@ class Binder {
_bindings[_bindingCount].udpSock = udps;
_bindings[_bindingCount].tcpListenSock = tcps;
_bindings[_bindingCount].address = ii->first;
phy.setIfName(udps, (char*)ii->second.c_str(), (int)ii->second.length());
memcpy(_bindings[_bindingCount].ifname, (char*)ii->second.c_str(), (int)ii->second.length());
++_bindingCount;
}
}
@ -514,6 +518,22 @@ class Binder {
return false;
}
/**
* @param s Socket object
* @param nameBuf Buffer to store name of interface which this Socket object is bound to
* @param buflen Length of buffer to copy name into
*/
void getIfName(PhySocket* s, char* nameBuf, int buflen) const
{
Mutex::Lock _l(_lock);
for (unsigned int b = 0, c = _bindingCount; b < c; ++b) {
if (_bindings[b].udpSock == s) {
memcpy(nameBuf, _bindings[b].ifname, buflen);
break;
}
}
}
private:
_Binding _bindings[ZT_BINDER_MAX_BINDINGS];
std::atomic<unsigned int> _bindingCount;