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#include <boost/uuid/uuid.hpp>
#include "config.h"
#include "gettime.hh"
#include "protozero/types.hpp"
#include "dnstap.hh"
#ifndef DISABLE_PROTOBUF
#include <protozero/pbf_writer.hpp>
namespace DnstapBaseFields
{
enum : protozero::pbf_tag_type
{
identity = 1,
version = 2,
extra = 3,
message = 14,
type = 15
};
}
namespace DnstapMessageTypes
{
enum : protozero::pbf_tag_type
{
message = 1
};
}
namespace DnstapSocketFamilyTypes
{
enum : protozero::pbf_tag_type
{
inet = 1,
inet6 = 2
};
}
namespace DnstapMessageFields
{
enum : protozero::pbf_tag_type
{
type = 1,
socket_family = 2,
socket_protocol = 3,
query_address = 4,
response_address = 5,
query_port = 6,
response_port = 7,
query_time_sec = 8,
query_time_nsec = 9,
query_message = 10,
query_zone = 11,
response_time_sec = 12,
response_time_nsec = 13,
response_message = 14,
policy = 15,
http_protocol = 16,
};
}
std::string&& DnstapMessage::getBuffer()
{
return std::move(d_buffer);
}
DnstapMessage::DnstapMessage(std::string&& buffer, DnstapMessage::MessageType type, const std::string& identity, const ComboAddress* requestor, const ComboAddress* responder, DnstapMessage::ProtocolType protocol, const char* packet, const size_t len, const struct timespec* queryTime, const struct timespec* responseTime, const boost::optional<const DNSName&>& auth, const boost::optional<HttpProtocolType> httpProtocol) :
d_buffer(std::move(buffer))
{
protozero::pbf_writer pbf{d_buffer};
pbf.add_bytes(DnstapBaseFields::identity, identity);
pbf.add_bytes(DnstapBaseFields::version, PACKAGE_STRING);
pbf.add_enum(DnstapBaseFields::type, DnstapMessageTypes::message);
protozero::pbf_writer pbf_message{pbf, DnstapBaseFields::message};
// NOLINTNEXTLINE(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
pbf_message.add_enum(DnstapMessageFields::type, static_cast<protozero::pbf_tag_type>(type));
// NOLINTNEXTLINE(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
pbf_message.add_enum(DnstapMessageFields::socket_protocol, static_cast<protozero::pbf_tag_type>(protocol));
if (requestor != nullptr) {
pbf_message.add_enum(DnstapMessageFields::socket_family, requestor->sin4.sin_family == AF_INET ? DnstapSocketFamilyTypes::inet : DnstapSocketFamilyTypes::inet6);
}
else if (responder != nullptr) {
pbf_message.add_enum(DnstapMessageFields::socket_family, responder->sin4.sin_family == AF_INET ? DnstapSocketFamilyTypes::inet : DnstapSocketFamilyTypes::inet6);
}
if (requestor != nullptr) {
if (requestor->sin4.sin_family == AF_INET) {
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
pbf_message.add_bytes(DnstapMessageFields::query_address, reinterpret_cast<const char*>(&requestor->sin4.sin_addr.s_addr), sizeof(requestor->sin4.sin_addr.s_addr));
}
else if (requestor->sin4.sin_family == AF_INET6) {
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
pbf_message.add_bytes(DnstapMessageFields::query_address, reinterpret_cast<const char*>(&requestor->sin6.sin6_addr.s6_addr), sizeof(requestor->sin6.sin6_addr.s6_addr));
}
pbf_message.add_uint32(DnstapMessageFields::query_port, ntohs(requestor->sin4.sin_port));
}
if (responder != nullptr) {
if (responder->sin4.sin_family == AF_INET) {
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
pbf_message.add_bytes(DnstapMessageFields::response_address, reinterpret_cast<const char*>(&responder->sin4.sin_addr.s_addr), sizeof(responder->sin4.sin_addr.s_addr));
}
else if (responder->sin4.sin_family == AF_INET6) {
// NOLINTNEXTLINE(cppcoreguidelines-pro-type-reinterpret-cast)
pbf_message.add_bytes(DnstapMessageFields::response_address, reinterpret_cast<const char*>(&responder->sin6.sin6_addr.s6_addr), sizeof(responder->sin6.sin6_addr.s6_addr));
}
pbf_message.add_uint32(DnstapMessageFields::response_port, ntohs(responder->sin4.sin_port));
}
if (queryTime != nullptr) {
pbf_message.add_uint64(DnstapMessageFields::query_time_sec, queryTime->tv_sec);
pbf_message.add_fixed32(DnstapMessageFields::query_time_nsec, queryTime->tv_nsec);
}
if (responseTime != nullptr) {
pbf_message.add_uint64(DnstapMessageFields::response_time_sec, responseTime->tv_sec);
pbf_message.add_fixed32(DnstapMessageFields::response_time_nsec, responseTime->tv_nsec);
}
if (packet != nullptr && len >= sizeof(dnsheader)) {
const dnsheader_aligned dnsheader(packet);
if (!dnsheader->qr) {
pbf_message.add_bytes(DnstapMessageFields::query_message, packet, len);
}
else {
pbf_message.add_bytes(DnstapMessageFields::response_message, packet, len);
}
}
if (httpProtocol) {
// NOLINTNEXTLINE(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
pbf_message.add_enum(DnstapMessageFields::http_protocol, static_cast<protozero::pbf_tag_type>(*httpProtocol));
}
if (auth) {
pbf_message.add_bytes(DnstapMessageFields::query_zone, auth->toDNSString());
}
pbf_message.commit();
}
void DnstapMessage::setExtra(const std::string& extra)
{
protozero::pbf_writer pbf{d_buffer};
pbf.add_bytes(DnstapBaseFields::extra, extra);
}
#endif /* DISABLE_PROTOBUF */
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