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Ticket #915, added allowSecondaryPort to optionally force ZT to use a single port

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This commit is contained in:
Joseph Henry 2019-07-09 10:31:03 -07:00
parent b2c4b7e99f
commit 389331ca29
1 changed files with 13 additions and 9 deletions
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22
service/OneService.cpp
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@ -475,6 +475,7 @@ public:
PhySocket *_localControlSocket6;
bool _updateAutoApply;
bool _allowTcpFallbackRelay;
bool _allowSecondaryPort;
unsigned int _multipathMode;
unsigned int _primaryPort;
unsigned int _secondaryPort;
@ -722,16 +723,18 @@ public:
// This exists because there are buggy NATs out there that fail if more
// than one device behind the same NAT tries to use the same internal
// private address port number. Buggy NATs are a running theme.
_ports[1] = (_secondaryPort == 0) ? 20000 + ((unsigned int)_node->address() % 45500) : _secondaryPort;
for(int i=0;;++i) {
if (i > 1000) {
_ports[1] = 0;
break;
} else if (++_ports[1] >= 65536) {
_ports[1] = 20000;
if (_allowSecondaryPort) {
_ports[1] = (_secondaryPort == 0) ? 20000 + ((unsigned int)_node->address() % 45500) : _secondaryPort;
for(int i=0;;++i) {
if (i > 1000) {
_ports[1] = 0;
break;
} else if (++_ports[1] >= 65536) {
_ports[1] = 20000;
}
if (_trialBind(_ports[1]))
break;
}
if (_trialBind(_ports[1]))
break;
}
#ifdef ZT_USE_MINIUPNPC
@ -1603,6 +1606,7 @@ public:
_primaryPort = (unsigned int)OSUtils::jsonInt(settings["primaryPort"],(uint64_t)_primaryPort) & 0xffff;
_allowTcpFallbackRelay = OSUtils::jsonBool(settings["allowTcpFallbackRelay"],true);
_allowSecondaryPort = OSUtils::jsonBool(settings["allowSecondaryPort"],true);
_secondaryPort = (unsigned int)OSUtils::jsonInt(settings["secondaryPort"],0);
_tertiaryPort = (unsigned int)OSUtils::jsonInt(settings["tertiaryPort"],0);
if (_secondaryPort != 0 || _tertiaryPort != 0) {