fix(upnp): support newer miniupnpc library (#2782)

Co-authored-by: Vithorio Polten <reach@vithor.io>

src/upnp.cpp

@@ -19,19 +19,6 @@
 using namespace std::literals;
 
 namespace upnp {
-  constexpr auto INET6_ADDRESS_STRLEN = 46;
-
-  constexpr auto PORT_MAPPING_LIFETIME = 3600s;
-  constexpr auto REFRESH_INTERVAL = 120s;
-
-  constexpr auto IPv4 = 0;
-  constexpr auto IPv6 = 1;
-
-  using device_t = util::safe_ptr<UPNPDev, freeUPNPDevlist>;
-
-  KITTY_USING_MOVE_T(urls_t, UPNPUrls, , {
-    FreeUPNPUrls(&el);
-  });
 
   struct mapping_t {
     struct {
@@ -59,6 +46,19 @@ namespace upnp {
     return "Unknown status"sv;
   }
 
+  /**
+   * This function is a wrapper around UPNP_GetValidIGD() that returns the status code. There is a pre-processor
+   * check to determine which version of the function to call based on the version of the MiniUPnPc library.
+   */
+  int
+  UPNP_GetValidIGDStatus(device_t &device, urls_t *urls, IGDdatas *data, std::array<char, INET6_ADDRESS_STRLEN> &lan_addr) {
+#if (MINIUPNPC_API_VERSION >= 18)
+    return UPNP_GetValidIGD(device.get(), &urls->el, data, lan_addr.data(), lan_addr.size(), nullptr, 0);
+#else
+    return UPNP_GetValidIGD(device.get(), &urls->el, data, lan_addr.data(), lan_addr.size());
+#endif
+  }
+
   class deinit_t: public platf::deinit_t {
   public:
     deinit_t() {
@@ -109,7 +109,7 @@ namespace upnp {
       IGDdatas data;
       urls_t urls;
       std::array<char, INET6_ADDRESS_STRLEN> lan_addr;
-      auto status = UPNP_GetValidIGD(device.get(), &urls.el, &data, lan_addr.data(), lan_addr.size());
+      auto status = upnp::UPNP_GetValidIGDStatus(device, &urls, &data, lan_addr);
       if (status != 1 && status != 2) {
         BOOST_LOG(debug) << "No valid IPv6 IGD: "sv << status_string(status);
         return false;
@@ -331,7 +331,7 @@ namespace upnp {
         std::array<char, INET6_ADDRESS_STRLEN> lan_addr;
 
         urls_t urls;
-        auto status = UPNP_GetValidIGD(device.get(), &urls.el, &data, lan_addr.data(), lan_addr.size());
+        auto status = upnp::UPNP_GetValidIGDStatus(device, &urls, &data, lan_addr);
         if (status != 1 && status != 2) {
           BOOST_LOG(error) << status_string(status);
           mapped = false;

src/upnp.h

@@ -4,12 +4,41 @@
  */
 #pragma once
 
+#include <miniupnpc/miniupnpc.h>
+
 #include "platform/common.h"
 
 /**
  * @brief UPnP port mapping.
  */
 namespace upnp {
+  constexpr auto INET6_ADDRESS_STRLEN = 46;
+  constexpr auto IPv4 = 0;
+  constexpr auto IPv6 = 1;
+  constexpr auto PORT_MAPPING_LIFETIME = 3600s;
+  constexpr auto REFRESH_INTERVAL = 120s;
+
+  using device_t = util::safe_ptr<UPNPDev, freeUPNPDevlist>;
+
+  KITTY_USING_MOVE_T(urls_t, UPNPUrls, , {
+    FreeUPNPUrls(&el);
+  });
+
+  /**
+   * @brief Get the valid IGD status.
+   * @param device The device.
+   * @param urls The URLs.
+   * @param data The IGD data.
+   * @param lan_addr The LAN address.
+   * @return The UPnP Status.
+   * @retval 0 No IGD found.
+   * @retval 1 A valid connected IGD has been found.
+   * @retval 2 A valid IGD has been found but it reported as not connected.
+   * @retval 3 An UPnP device has been found but was not recognized as an IGD.
+   */
+  int
+  UPNP_GetValidIGDStatus(device_t &device, urls_t *urls, IGDdatas *data, std::array<char, INET6_ADDRESS_STRLEN> &lan_addr);
+
   [[nodiscard]] std::unique_ptr<platf::deinit_t>
   start();
-}
+}  // namespace upnp