remove hunk of win32 specific code, it is dead in this codepath

llarp/net/posix.cpp

@@ -22,188 +22,6 @@
 
 namespace llarp::net
 {
-#ifdef _WIN32
-  class Platform_Impl : public Platform_Base
-  {
-    /// visit all adapters (not addresses). windows serves net info per adapter unlink posix which
-    /// gives a list of all distinct addresses.
-    template <typename Visit_t>
-    void
-    iter_adapters(Visit_t&& visit) const
-    {
-      constexpr auto flags = GAA_FLAG_SKIP_ANYCAST | GAA_FLAG_SKIP_MULTICAST
-          | GAA_FLAG_SKIP_DNS_SERVER | GAA_FLAG_INCLUDE_PREFIX | GAA_FLAG_INCLUDE_GATEWAYS
-          | GAA_FLAG_INCLUDE_ALL_INTERFACES;
-
-      ULONG sz{};
-      GetAdaptersAddresses(AF_UNSPEC, flags, nullptr, nullptr, &sz);
-      auto* ptr = new uint8_t[sz];
-      auto* addrs = reinterpret_cast<PIP_ADAPTER_ADDRESSES>(ptr);
-
-      if (auto err = GetAdaptersAddresses(AF_UNSPEC, flags, nullptr, addrs, &sz);
-          err != ERROR_SUCCESS)
-        throw llarp::win32::error{err, "GetAdaptersAddresses()"};
-
-      for (auto* addr = addrs; addr and addr->Next; addr = addr->Next)
-        visit(addr);
-
-      delete[] ptr;
-    }
-
-    template <typename adapter_t>
-    bool
-    adapter_has_ip(adapter_t* a, ipaddr_t ip) const
-    {
-      for (auto* addr = a->FirstUnicastAddress; addr and addr->Next; addr = addr->Next)
-      {
-        SockAddr saddr{*addr->Address.lpSockaddr};
-        if (saddr.getIP() == ip)
-          return true;
-      }
-      return false;
-    }
-
-    template <typename adapter_t>
-    bool
-    adapter_has_fam(adapter_t* a, int af) const
-    {
-      for (auto* addr = a->FirstUnicastAddress; addr and addr->Next; addr = addr->Next)
-      {
-        SockAddr saddr{*addr->Address.lpSockaddr};
-        if (saddr.Family() == af)
-          return true;
-      }
-      return false;
-    }
-
-   public:
-    std::optional<int>
-    GetInterfaceIndex(ipaddr_t ip) const override
-    {
-      std::optional<int> found;
-      iter_adapters([&found, ip, this](auto* adapter) {
-        if (found)
-          return;
-        if (adapter_has_ip(adapter, ip))
-          found = adapter->IfIndex;
-      });
-      return found;
-    }
-
-    std::optional<llarp::SockAddr>
-    GetInterfaceAddr(std::string_view name, int af) const override
-    {
-      std::optional<SockAddr> found;
-      iter_adapters([name = std::string{name}, af, &found, this](auto* a) {
-        if (found)
-          return;
-        if (std::string{a->AdapterName} != name)
-          return;
-
-        if (adapter_has_fam(a, af))
-          found = SockAddr{*a->FirstUnicastAddress->Address.lpSockaddr};
-      });
-      return found;
-    }
-
-    std::optional<SockAddr>
-    AllInterfaces(SockAddr fallback) const override
-    {
-      // windows seems to not give a shit about source address
-      return fallback.isIPv6() ? SockAddr{"[::]"} : SockAddr{"0.0.0.0"};
-    }
-
-    std::optional<std::string>
-    FindFreeTun() const override
-    {
-      // TODO: implement me ?
-      return std::nullopt;
-    }
-
-    std::optional<std::string>
-    GetBestNetIF(int) const override
-    {
-      // TODO: implement me ?
-      return std::nullopt;
-    }
-
-    std::optional<IPRange>
-    FindFreeRange() const override
-    {
-      std::list<IPRange> currentRanges;
-      iter_adapters([&currentRanges](auto* i) {
-        for (auto* addr = i->FirstUnicastAddress; addr and addr->Next; addr = addr->Next)
-        {
-          SockAddr saddr{*addr->Address.lpSockaddr};
-          currentRanges.emplace_back(
-              saddr.asIPv6(),
-              ipaddr_netmask_bits(addr->OnLinkPrefixLength, addr->Address.lpSockaddr->sa_family));
-        }
-      });
-
-      auto ownsRange = [&currentRanges](const IPRange& range) -> bool {
-        for (const auto& ownRange : currentRanges)
-        {
-          if (ownRange * range)
-            return true;
-        }
-        return false;
-      };
-      // generate possible ranges to in order of attempts
-      std::list<IPRange> possibleRanges;
-      for (byte_t oct = 16; oct < 32; ++oct)
-      {
-        possibleRanges.emplace_back(IPRange::FromIPv4(172, oct, 0, 1, 16));
-      }
-      for (byte_t oct = 0; oct < 255; ++oct)
-      {
-        possibleRanges.emplace_back(IPRange::FromIPv4(10, oct, 0, 1, 16));
-      }
-      for (byte_t oct = 0; oct < 255; ++oct)
-      {
-        possibleRanges.emplace_back(IPRange::FromIPv4(192, 168, oct, 1, 24));
-      }
-      // for each possible range pick the first one we don't own
-      for (const auto& range : possibleRanges)
-      {
-        if (not ownsRange(range))
-          return range;
-      }
-      return std::nullopt;
-    }
-    std::string
-    LoopbackInterfaceName() const override
-    {
-      // todo: implement me? does windows even have a loopback?
-      return "";
-    }
-    bool
-    HasInterfaceAddress(ipaddr_t ip) const override
-    {
-      return GetInterfaceIndex(ip) != std::nullopt;
-    }
-
-    std::vector<InterfaceInfo>
-    AllNetworkInterfaces() const override
-    {
-      std::vector<InterfaceInfo> all;
-      iter_adapters([&all](auto* a) {
-        auto& cur = all.emplace_back();
-        cur.index = a->IfIndex;
-        cur.name = a->AdapterName;
-        for (auto* addr = a->FirstUnicastAddress; addr and addr->Next; addr = addr->Next)
-        {
-          SockAddr saddr{*addr->Address.lpSockaddr};
-          cur.addrs.emplace_back(
-              saddr.asIPv6(),
-              ipaddr_netmask_bits(addr->OnLinkPrefixLength, addr->Address.lpSockaddr->sa_family));
-        }
-      });
-      return all;
-    }
-  };
-
-#else
 
   class Platform_Impl : public Platform
   {
@@ -405,7 +223,6 @@ namespace llarp::net
       return all;
     }
   };
-#endif
 
   const Platform_Impl g_plat{};