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UPnP: handle port mapping conflicts

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SChernykh 2023-03-20 22:13:12 +01:00
parent cf11993cb1
commit 86b6cf2d65
1 changed files with 16 additions and 0 deletions
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16
src/util.cpp
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@ -650,6 +650,22 @@ void add_portmapping(int external_port, int internal_port)
const std::string iport = std::to_string(internal_port);
result = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype, eport.c_str(), iport.c_str(), local_addr, "P2Pool", "TCP", nullptr, nullptr);
// ConflictInMappingEntry: try to delete the old record and then add the new one again
if (result == 718) {
LOGWARN(1, "UPNP_AddPortMapping failed: ConflictInMappingEntry");
result = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, eport.c_str(), "TCP", nullptr);
if (result) {
LOGWARN(1, "UPNP_DeletePortMapping returned error " << result);
return;
}
else {
LOGINFO(1, "UPnP: Deleted mapping for external port " << external_port);
result = UPNP_AddPortMapping(urls.controlURL, data.first.servicetype, eport.c_str(), iport.c_str(), local_addr, "P2Pool", "TCP", nullptr, nullptr);
}
}
if (result) {
LOGWARN(1, "UPNP_AddPortMapping returned error " << result);
}