ExternalVendorCode/ZeroTierOne
1
0
Fork 0
mirror of https://github.com/zerotier/ZeroTierOne.git synced 2024-12-18 20:47:53 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix random port rebinding

Browse Source 
It was checking for "offline" every loop.
But the port rebinding happens only ever X
loops. So the port would keep changing before it
would get bound.
This commit is contained in:
travisladuke 2024-01-09 09:10:06 -08:00
parent 0ca8ae7970
commit 5542dbcc0b
1 changed files with 17 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
service/OneService.cpp
View File

@ -1172,25 +1172,25 @@ public:
}
}
// If secondary port is not configured to a constant value and we've been offline for a while,
// bind a new secondary port. This is a workaround for a "coma" issue caused by buggy NATs that stop
// working on one port after a while.
if (_secondaryPort == 0) {
if (_node->online()) {
lastOnline = now;
}
if ((now - lastOnline) > ZT_PATH_HEARTBEAT_PERIOD || restarted) {
_ports[1] = _getRandomPort();
#if ZT_DEBUG==1
fprintf(stderr, "randomized secondary port. Now it's %d\n", _ports[1]);
#endif
lastOnline = now; // don't keep spamming this branch. online() will be false for a few seconds
}
}
// Refresh bindings in case device's interfaces have changed, and also sync routes to update any shadow routes (e.g. shadow default)
if (((now - lastBindRefresh) >= (_node->bondController()->inUse() ? ZT_BINDER_REFRESH_PERIOD / 4 : ZT_BINDER_REFRESH_PERIOD))||restarted) {
// If secondary port is not configured to a constant value and we've been offline for a while,
// bind a new secondary port. This is a workaround for a "coma" issue caused by buggy NATs that stop
// working on one port after a while.
if (_secondaryPort == 0) {
if (_node->online()) {
lastOnline = now;
}
else if (now - lastOnline > (ZT_PEER_PING_PERIOD * 2) || restarted) {
lastOnline = now; // don't keep changing the port before we have a chance to connect
_ports[1] = _getRandomPort();
#if ZT_DEBUG==1
fprintf(stderr, "Randomized secondary port. Now it's %d\n", _ports[1]);
#endif
}
}
unsigned int p[3];
unsigned int pc = 0;
for(int i=0;i<3;++i) {