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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "dnsdist.hh"
extern "C" {
#include "dnsdist-lua-ffi-interface.h"
}
// dnsdist_ffi_dnsquestion_t is a lightuserdata
template<>
struct LuaContext::Pusher<dnsdist_ffi_dnsquestion_t*> {
static const int minSize = 1;
static const int maxSize = 1;
static PushedObject push(lua_State* state, dnsdist_ffi_dnsquestion_t* ptr) noexcept {
lua_pushlightuserdata(state, ptr);
return PushedObject{state, 1};
}
};
struct dnsdist_ffi_dnsquestion_t
{
dnsdist_ffi_dnsquestion_t(DNSQuestion* dq_): dq(dq_)
{
}
DNSQuestion* dq{nullptr};
ComboAddress maskedRemote;
std::string trailingData;
std::optional<std::string> result{std::nullopt};
std::optional<std::string> httpPath{std::nullopt};
std::optional<std::string> httpQueryString{std::nullopt};
std::optional<std::string> httpHost{std::nullopt};
std::optional<std::string> httpScheme{std::nullopt};
std::unique_ptr<std::vector<dnsdist_ffi_ednsoption_t>> ednsOptionsVect;
std::unique_ptr<std::vector<dnsdist_ffi_http_header_t>> httpHeadersVect;
std::unique_ptr<std::vector<dnsdist_ffi_tag_t>> tagsVect;
std::unique_ptr<std::unordered_map<std::string, std::string>> httpHeaders;
};
// dnsdist_ffi_dnsresponse_t is a lightuserdata
template<>
struct LuaContext::Pusher<dnsdist_ffi_dnsresponse_t*> {
static const int minSize = 1;
static const int maxSize = 1;
static PushedObject push(lua_State* state, dnsdist_ffi_dnsresponse_t* ptr) noexcept {
lua_pushlightuserdata(state, ptr);
return PushedObject{state, 1};
}
};
struct dnsdist_ffi_dnsresponse_t
{
dnsdist_ffi_dnsresponse_t(DNSResponse* dr_): dr(dr_)
{
}
DNSResponse* dr{nullptr};
std::optional<std::string> result{std::nullopt};
};
// dnsdist_ffi_server_t is a lightuserdata
template<>
struct LuaContext::Pusher<dnsdist_ffi_server_t*> {
static const int minSize = 1;
static const int maxSize = 1;
static PushedObject push(lua_State* state, dnsdist_ffi_server_t* ptr) noexcept {
lua_pushlightuserdata(state, ptr);
return PushedObject{state, 1};
}
};
struct dnsdist_ffi_server_t
{
dnsdist_ffi_server_t(const std::shared_ptr<DownstreamState>& server_): server(server_)
{
}
const std::shared_ptr<DownstreamState>& server;
};
// dnsdist_ffi_servers_list_t is a lightuserdata
template<>
struct LuaContext::Pusher<dnsdist_ffi_servers_list_t*> {
static const int minSize = 1;
static const int maxSize = 1;
static PushedObject push(lua_State* state, dnsdist_ffi_servers_list_t* ptr) noexcept {
lua_pushlightuserdata(state, ptr);
return PushedObject{state, 1};
}
};
struct dnsdist_ffi_servers_list_t
{
dnsdist_ffi_servers_list_t(const ServerPolicy::NumberedServerVector& servers_): servers(servers_)
{
ffiServers.reserve(servers.size());
for (const auto& server: servers) {
ffiServers.push_back(dnsdist_ffi_server_t(server.second));
}
}
std::vector<dnsdist_ffi_server_t> ffiServers;
const ServerPolicy::NumberedServerVector& servers;
};
// dnsdist_ffi_network_message_t is a lightuserdata
template<>
struct LuaContext::Pusher<dnsdist_ffi_network_message_t*> {
static const int minSize = 1;
static const int maxSize = 1;
static PushedObject push(lua_State* state, dnsdist_ffi_network_message_t* ptr) noexcept {
lua_pushlightuserdata(state, ptr);
return PushedObject{state, 1};
}
};
struct dnsdist_ffi_network_message_t
{
dnsdist_ffi_network_message_t(const std::string& payload_ ,const std::string& from_, uint16_t endpointID_): payload(payload_), from(from_), endpointID(endpointID_)
{
}
const std::string& payload;
const std::string& from;
uint16_t endpointID;
};
const char* getLuaFFIWrappers();
void setupLuaFFIPerThreadContext(LuaContext& luaCtx);
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