From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 11 Apr 2022 16:12:38 +0000 (+0200)
Subject: dnsdist: Add Lua FFI interface to network endpoint
X-Git-Tag: dnsdist-1.8.0-rc1~285^2~3
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d23b74da551cf080d232edebcddd34c7e0eb3f81;p=thirdparty%2Fpdns.git

dnsdist: Add Lua FFI interface to network endpoint
---

diff --git a/pdns/dnsdistdist/dnsdist-lua-ffi-interface.h b/pdns/dnsdistdist/dnsdist-lua-ffi-interface.h
index a22904a6b1..528d45cd40 100644
--- a/pdns/dnsdistdist/dnsdist-lua-ffi-interface.h
+++ b/pdns/dnsdistdist/dnsdist-lua-ffi-interface.h
@@ -180,3 +180,10 @@ void dnsdist_ffi_ring_entry_list_free(dnsdist_ffi_ring_entry_list_t*) __attribut
 size_t dnsdist_ffi_ring_get_entries(dnsdist_ffi_ring_entry_list_t** out) __attribute__ ((visibility ("default")));
 size_t dnsdist_ffi_ring_get_entries_by_addr(const char* addr, dnsdist_ffi_ring_entry_list_t** out) __attribute__ ((visibility ("default")));
 size_t dnsdist_ffi_ring_get_entries_by_mac(const char* addr, dnsdist_ffi_ring_entry_list_t** out) __attribute__ ((visibility ("default")));
+
+typedef struct dnsdist_ffi_network_endpoint_t dnsdist_ffi_network_endpoint_t;
+
+bool dnsdist_ffi_network_endpoint_new(const char* path, size_t pathSize, dnsdist_ffi_network_endpoint_t** out) __attribute__ ((visibility ("default")));
+bool dnsdist_ffi_network_endpoint_is_valid(const dnsdist_ffi_network_endpoint_t* endpoint) __attribute__ ((visibility ("default")));
+bool dnsdist_ffi_network_endpoint_send(const dnsdist_ffi_network_endpoint_t* endpoint, const char* payload, size_t payloadSize) __attribute__ ((visibility ("default")));
+void dnsdist_ffi_network_endpoint_free(dnsdist_ffi_network_endpoint_t* endpoint) __attribute__ ((visibility ("default")));
diff --git a/pdns/dnsdistdist/dnsdist-lua-ffi.cc b/pdns/dnsdistdist/dnsdist-lua-ffi.cc
index 8100c62516..c1a07ac2ea 100644
--- a/pdns/dnsdistdist/dnsdist-lua-ffi.cc
+++ b/pdns/dnsdistdist/dnsdist-lua-ffi.cc
@@ -22,6 +22,7 @@
 
 #include "dnsdist-lua-ffi.hh"
 #include "dnsdist-mac-address.hh"
+#include "dnsdist-lua-network.hh"
 #include "dnsdist-lua.hh"
 #include "dnsdist-ecs.hh"
 #include "dnsdist-rings.hh"
@@ -1084,3 +1085,42 @@ size_t dnsdist_ffi_ring_get_entries_by_mac(const char* addr, dnsdist_ffi_ring_en
   return count;
 #endif
 }
+
+struct dnsdist_ffi_network_endpoint_t
+{
+  dnsdist::NetworkEndpoint d_endpoint;
+};
+
+bool dnsdist_ffi_network_endpoint_new(const char* path, size_t pathSize, dnsdist_ffi_network_endpoint_t** out)
+{
+  if (path == nullptr || pathSize == 0 || out == nullptr) {
+    return false;
+  }
+  try {
+    dnsdist::NetworkEndpoint endpoint(std::string(path, pathSize));
+    *out = new dnsdist_ffi_network_endpoint_t{std::move(endpoint)};
+    return true;
+  }
+  catch (const std::exception& e) {
+    vinfolog("Error creating a new network endpoint: %s", e.what());
+    return false;
+  }
+}
+
+bool dnsdist_ffi_network_endpoint_is_valid(const dnsdist_ffi_network_endpoint_t* endpoint)
+{
+  return endpoint != nullptr;
+}
+
+bool dnsdist_ffi_network_endpoint_send(const dnsdist_ffi_network_endpoint_t* endpoint, const char* payload, size_t payloadSize)
+{
+  if (endpoint != nullptr && payload != nullptr && payloadSize != 0) {
+    return endpoint->d_endpoint.send(std::string_view(payload, payloadSize));
+  }
+  return false;
+}
+
+void dnsdist_ffi_network_endpoint_free(dnsdist_ffi_network_endpoint_t* endpoint)
+{
+  delete endpoint;
+}