dcrubro/columnlynx
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Kinda working Windows version

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Needs these DLLs:
- libgcc_s_seh-1.dll
- libstdc++-6.dll
- libwinpthread-1.dll
- wintun.dll
This commit is contained in:
DcruBro
2025-12-17 19:11:28 +01:00
parent c047cb90f0
commit cab1362053
6 changed files with 77 additions and 43 deletions
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79
src/common/virtual_interface.cpp
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@@ -10,37 +10,43 @@
static HMODULE gWintun = nullptr;
static WintunOpenAdapterFn WintunOpenAdapter;
static WintunStartSessionFn WintunStartSession;
static WintunEndSessionFn WintunEndSession;
static WintunGetReadWaitEventFn WintunGetReadWaitEvent;
static WintunReceivePacketFn WintunReceivePacket;
static WintunReleaseReceivePacketFn WintunReleaseReceivePacket;
static WintunAllocateSendPacketFn WintunAllocateSendPacket;
static WintunSendPacketFn WintunSendPacket;
static WINTUN_OPEN_ADAPTER_FUNC* pWintunOpenAdapter;
static WINTUN_START_SESSION_FUNC* pWintunStartSession;
static WINTUN_END_SESSION_FUNC* pWintunEndSession;
static WINTUN_GET_READ_WAIT_EVENT_FUNC* pWintunGetReadWaitEvent;
static WINTUN_RECEIVE_PACKET_FUNC* pWintunReceivePacket;
static WINTUN_RELEASE_RECEIVE_PACKET_FUNC* pWintunReleaseReceivePacket;
static WINTUN_ALLOCATE_SEND_PACKET_FUNC* pWintunAllocateSendPacket;
static WINTUN_SEND_PACKET_FUNC* pWintunSendPacket;
static void InitializeWintun()
{
if (gWintun)
return;
gWintun = LoadLibraryExW(L"wintun.dll", nullptr,
LOAD_LIBRARY_SEARCH_APPLICATION_DIR);
gWintun = LoadLibraryExW(
L"wintun.dll",
nullptr,
LOAD_LIBRARY_SEARCH_APPLICATION_DIR
);
if (!gWintun)
throw std::runtime_error("Failed to load wintun.dll");
#define RESOLVE(name) \
name = (name##Fn)GetProcAddress(gWintun, #name); \
if (!name) throw std::runtime_error("Missing Wintun symbol: " #name);
#define RESOLVE(name, type) \
p##name = reinterpret_cast<type*>( \
GetProcAddress(gWintun, #name)); \
if (!p##name) \
throw std::runtime_error("Missing Wintun symbol: " #name);
RESOLVE(WintunOpenAdapter)
RESOLVE(WintunStartSession)
RESOLVE(WintunEndSession)
RESOLVE(WintunGetReadWaitEvent)
RESOLVE(WintunReceivePacket)
RESOLVE(WintunReleaseReceivePacket)
RESOLVE(WintunAllocateSendPacket)
RESOLVE(WintunSendPacket)
RESOLVE(WintunOpenAdapter, WINTUN_OPEN_ADAPTER_FUNC)
RESOLVE(WintunStartSession, WINTUN_START_SESSION_FUNC)
RESOLVE(WintunEndSession, WINTUN_END_SESSION_FUNC)
RESOLVE(WintunGetReadWaitEvent, WINTUN_GET_READ_WAIT_EVENT_FUNC)
RESOLVE(WintunReceivePacket, WINTUN_RECEIVE_PACKET_FUNC)
RESOLVE(WintunReleaseReceivePacket, WINTUN_RELEASE_RECEIVE_PACKET_FUNC)
RESOLVE(WintunAllocateSendPacket, WINTUN_ALLOCATE_SEND_PACKET_FUNC)
RESOLVE(WintunSendPacket, WINTUN_SEND_PACKET_FUNC)
#undef RESOLVE
}
@@ -107,19 +113,18 @@ namespace ColumnLynx::Net {
InitializeWintun();
mAdapter = WintunOpenAdapter(
L"ColumnLynx",
mAdapter = pWintunOpenAdapter(
std::wstring(ifName.begin(), ifName.end()).c_str()
);
if (!mAdapter)
throw std::runtime_error("Wintun adapter not found");
mSession = WintunStartSession(mAdapter, 0x200000);
mSession = pWintunStartSession(mAdapter, 0x200000);
if (!mSession)
throw std::runtime_error("Failed to start Wintun session");
mHandle = WintunGetReadWaitEvent(mSession);
mHandle = pWintunGetReadWaitEvent(mSession);
mFd = -1;
#else
@@ -134,7 +139,7 @@ namespace ColumnLynx::Net {
close(mFd);
#elif defined(_WIN32)
if (mSession)
WintunEndSession(mSession);
pWintunEndSession(mSession);
#endif
}
@@ -200,14 +205,13 @@ namespace ColumnLynx::Net {
#elif defined(_WIN32)
WINTUN_PACKET* packet = WintunReceivePacket(mSession, nullptr);
DWORD size = 0;
BYTE* packet = pWintunReceivePacket(mSession, &size);
if (!packet)
return {};
std::vector<uint8_t> buf(packet->Data,
packet->Data + packet->Length);
WintunReleaseReceivePacket(mSession, packet);
std::vector<uint8_t> buf(packet, packet + size);
pWintunReleaseReceivePacket(mSession, packet);
return buf;
#else
@@ -252,15 +256,16 @@ namespace ColumnLynx::Net {
#elif defined(_WIN32)
WINTUN_PACKET* tx =
WintunAllocateSendPacket(mSession,
static_cast<DWORD>(packet.size()));
BYTE* tx = pWintunAllocateSendPacket(
mSession,
static_cast<DWORD>(packet.size())
);
if (!tx)
throw std::runtime_error("WintunAllocateSendPacket failed");
memcpy(tx->Data, packet.data(), packet.size());
WintunSendPacket(mSession, tx);
memcpy(tx, packet.data(), packet.size());
pWintunSendPacket(mSession, tx);
#endif
}