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Test using the relay even if we believe it may be a double-NAT configuration

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This commit is contained in:
Cameron Gutman
2019-07-29 21:25:40 -07:00
parent acb3f5a059
commit 51e953c092
1 changed files with 50 additions and 53 deletions
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103
mist/mist.cpp
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@@ -890,67 +890,64 @@ int main(int argc, char* argv[])
// Try to connect via WAN IPv4 address
fprintf(LOG_OUT, "Testing GameStream ports via STUN-reported WAN address\n");
if (!TestAllPorts(&ss, portMsgBuf, sizeof(portMsgBuf), true)) {
RelayCheck:
struct addrinfo hint = {};
struct addrinfo* result;
// We can get here if the router doesn't support NAT reflection.
// We'll need to call out to our loopback server to get a second opinion.
hint.ai_family = AF_UNSPEC;
hint.ai_flags = AI_ADDRCONFIG;
err = getaddrinfo("loopback.moonlight-stream.org", NULL, &hint, &result);
if (err != 0 || result == NULL) {
fprintf(LOG_OUT, "getaddrinfo() failed: %d\n", err);
}
else {
// First try the relay server over IPv4. If this passes, it's considered a full success
fprintf(LOG_OUT, "Testing GameStream ports via IPv4 loopback server\n");
for (struct addrinfo* current = result; current != NULL; current = current->ai_next) {
if (current->ai_family == AF_INET) {
fprintf(CONSOLE_OUT, "Testing GameStream connectivity over the Internet using a relay server...\n");
if (TestAllPorts((PSOCKADDR_STORAGE)current->ai_addr, portMsgBuf, sizeof(portMsgBuf), true)) {
freeaddrinfo(result);
goto AllTestsPassed;
}
}
}
// If that fails, try the relay server over IPv6. If this passes, it will be a partial success
fprintf(LOG_OUT, "Testing GameStream ports via IPv6 loopback server\n");
for (struct addrinfo* current = result; current != NULL; current = current->ai_next) {
if (current->ai_family == AF_INET6) {
fprintf(CONSOLE_OUT, "Testing GameStream connectivity over the Internet using an IPv6 relay server...\n");
if (TestAllPorts((PSOCKADDR_STORAGE)current->ai_addr, NULL, 0, true)) {
snprintf(msgBuf, sizeof(msgBuf), "This PC has limited connectivity for Internet hosting. It will work only for clients on certain networks.\n\n"
"If you want to try streaming with this configuration, you must pair Moonlight to your gaming PC from your home network before trying to stream over the Internet.\n\n"
"To get full connectivity, please contact your ISP and ask for a \"public IP address\" which they may offer for free upon request. For more information and workarounds, click the Help button.");
DisplayMessage(msgBuf, "https://github.com/moonlight-stream/moonlight-docs/wiki/Internet-Streaming-Errors#limited-connectivity-for-hosting-error", MpWarn);
freeaddrinfo(result);
return 0;
}
}
}
}
freeaddrinfo(result);
// Many UPnP devices report IGD disconnected when double-NATed. If it was really offline,
// we probably would not have even gotten past STUN.
if (IsDoubleNAT(&locallyReportedWanAddr) || igdDisconnected) {
snprintf(msgBuf, sizeof(msgBuf), "Your router appears be connected to the Internet through another router. Click the Help button for guidance on fixing this issue.");
DisplayMessage(msgBuf, "https://github.com/moonlight-stream/moonlight-docs/wiki/Internet-Streaming-Errors#connected-through-another-router-error");
}
else if (IsPossibleCGN(&locallyReportedWanAddr)) {
snprintf(msgBuf, sizeof(msgBuf), "Your ISP is running a Carrier-Grade NAT that is preventing you from hosting services like Moonlight on the Internet. Click the Help button for guidance on fixing this issue.");
DisplayMessage(msgBuf, "https://github.com/moonlight-stream/moonlight-docs/wiki/Internet-Streaming-Errors#carrier-grade-nat-error");
}
else {
struct addrinfo hint = {};
struct addrinfo* result;
// We can get here if the router doesn't support NAT reflection.
// We'll need to call out to our loopback server to get a second opinion.
hint.ai_family = AF_UNSPEC;
hint.ai_flags = AI_ADDRCONFIG;
err = getaddrinfo("loopback.moonlight-stream.org", NULL, &hint, &result);
if (err != 0 || result == NULL) {
fprintf(LOG_OUT, "getaddrinfo() failed: %d\n", err);
}
else {
// First try the relay server over IPv4. If this passes, it's considered a full success
fprintf(LOG_OUT, "Testing GameStream ports via IPv4 loopback server\n");
for (struct addrinfo* current = result; current != NULL; current = current->ai_next) {
if (current->ai_family == AF_INET) {
fprintf(CONSOLE_OUT, "Testing GameStream connectivity over the Internet using a relay server...\n");
if (TestAllPorts((PSOCKADDR_STORAGE)current->ai_addr, portMsgBuf, sizeof(portMsgBuf), true)) {
freeaddrinfo(result);
goto AllTestsPassed;
}
}
}
// If that fails, try the relay server over IPv6. If this passes, it will be a partial success
fprintf(LOG_OUT, "Testing GameStream ports via IPv6 loopback server\n");
for (struct addrinfo* current = result; current != NULL; current = current->ai_next) {
if (current->ai_family == AF_INET6) {
fprintf(CONSOLE_OUT, "Testing GameStream connectivity over the Internet using an IPv6 relay server...\n");
if (TestAllPorts((PSOCKADDR_STORAGE)current->ai_addr, NULL, 0, true)) {
snprintf(msgBuf, sizeof(msgBuf), "This PC has limited connectivity for Internet hosting. It will work only for clients on certain networks.\n\n"
"If you want to try streaming with this configuration, you must pair Moonlight to your gaming PC from your home network before trying to stream over the Internet.\n\n"
"To get full connectivity, please contact your ISP and ask for a \"public IP address\" which they may offer for free upon request. For more information and workarounds, click the Help button.");
DisplayMessage(msgBuf, "https://github.com/moonlight-stream/moonlight-docs/wiki/Internet-Streaming-Errors#limited-connectivity-for-hosting-error", MpWarn);
freeaddrinfo(result);
return 0;
}
}
}
}
freeaddrinfo(result);
if (IsPossibleCGN(&locallyReportedWanAddr)) {
snprintf(msgBuf, sizeof(msgBuf), "Your ISP is running a Carrier-Grade NAT that is preventing you from hosting services like Moonlight on the Internet. Click the Help button for guidance on fixing this issue.");
DisplayMessage(msgBuf, "https://github.com/moonlight-stream/moonlight-docs/wiki/Internet-Streaming-Errors#carrier-grade-nat-error");
}
else {
snprintf(msgBuf, sizeof(msgBuf), "Internet GameStream connectivity check failed. Click the Help button for guidance on fixing this issue.\n\nThe following ports were not forwarded properly:\n%s", portMsgBuf);
DisplayMessage(msgBuf, "https://github.com/moonlight-stream/moonlight-docs/wiki/Internet-Streaming-Errors#internet-gamestream-connectivity-check-error");
}
snprintf(msgBuf, sizeof(msgBuf), "Internet GameStream connectivity check failed. Click the Help button for guidance on fixing this issue.\n\nThe following ports were not forwarded properly:\n%s", portMsgBuf);
DisplayMessage(msgBuf, "https://github.com/moonlight-stream/moonlight-docs/wiki/Internet-Streaming-Errors#internet-gamestream-connectivity-check-error");
}
return -1;