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/*
* This file describes the message format used by the protobuf logging feature in PowerDNS and dnsdist.
*
* MIT License
*
* Copyright (c) 2016-now PowerDNS.COM B.V. and its contributors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
syntax = "proto2";
message PBDNSMessage {
enum Type {
DNSQueryType = 1; // Query received by the service
DNSResponseType = 2; // Response returned by the service
DNSOutgoingQueryType = 3; // Query sent out by the service to a remote server
DNSIncomingResponseType = 4; // Response returned by the remote server
}
enum SocketFamily {
INET = 1; // IPv4 (RFC 791)
INET6 = 2; // IPv6 (RFC 2460)
}
enum SocketProtocol {
UDP = 1; // User Datagram Protocol (RFC 768)
TCP = 2; // Transmission Control Protocol (RFC 793)
DOT = 3; // DNS over TLS (RFC 7858)
DOH = 4; // DNS over HTTPS (RFC 8484)
DNSCryptUDP = 5; // DNSCrypt over UDP (https://dnscrypt.info/protocol)
DNSCryptTCP = 6; // DNSCrypt over TCP (https://dnscrypt.info/protocol)
DOQ = 7; // DNS over QUIC (RFC 9250)
}
enum HTTPVersion {
HTTP1 = 1; // HTTP/1.1
HTTP2 = 2; // HTTP/2
HTTP3 = 3; // HTTP/3
}
enum PolicyType {
UNKNOWN = 1; // No RPZ policy applied, or unknown type
QNAME = 2; // Policy matched on the QName
CLIENTIP = 3; // Policy matched on the client IP
RESPONSEIP = 4; // Policy matched on one of the IPs contained in the answer
NSDNAME = 5; // Policy matched on the name of one nameserver involved
NSIP = 6; // Policy matched on the IP of one nameserver involved
}
enum PolicyKind {
NoAction = 1; // No action taken
Drop = 2; // https://tools.ietf.org/html/draft-vixie-dns-rpz-04 3.4
NXDOMAIN = 3; // https://tools.ietf.org/html/draft-vixie-dns-rpz-04 3.1
NODATA = 4; // https://tools.ietf.org/html/draft-vixie-dns-rpz-04 3.2
Truncate= 5; // https://tools.ietf.org/html/draft-vixie-dns-rpz-04 3.5
Custom = 6; // https://tools.ietf.org/html/draft-vixie-dns-rpz-04 3.6
}
enum VState {
Indeterminate = 1;
Insecure = 2;
Secure = 3;
BogusNoValidDNSKEY = 4;
BogusInvalidDenial = 5;
BogusUnableToGetDSs = 6;
BogusUnableToGetDNSKEYs = 7;
BogusSelfSignedDS = 8;
BogusNoRRSIG = 9;
BogusNoValidRRSIG = 10;
BogusMissingNegativeIndication = 11;
BogusSignatureNotYetValid = 12;
BogusSignatureExpired = 13;
BogusUnsupportedDNSKEYAlgo = 14;
BogusUnsupportedDSDigestType = 15;
BogusNoZoneKeyBitSet = 16;
BogusRevokedDNSKEY = 17;
BogusInvalidDNSKEYProtocol = 18;
}
required Type type = 1; // Type of event
optional bytes messageId = 2; // UUID, shared by the query and the response
optional bytes serverIdentity = 3; // ID of the server emitting the protobuf message
optional SocketFamily socketFamily = 4;
optional SocketProtocol socketProtocol = 5;
optional bytes from = 6; // DNS requestor (client) as 4 (IPv4) or 16 (IPv6) raw bytes in network byte order
optional bytes to = 7; // DNS responder (server) as 4 (IPv4) or 16 (IPv6) raw bytes in network byte order
optional uint64 inBytes = 8; // Size of the query or response on the wire
optional uint32 timeSec = 9; // Time of message reception (seconds since epoch)
optional uint32 timeUsec = 10; // Time of message reception (additional micro-seconds)
optional uint32 id = 11; // ID of the query/response as found in the DNS header
message DNSQuestion {
optional string qName = 1; // Fully qualified DNS name (with trailing dot)
optional uint32 qType = 2; // https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-4
optional uint32 qClass = 3; // Typically 1 (IN), see https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-2
}
optional DNSQuestion question = 12; // DNS query received from client
message DNSResponse {
// See exportTypes in https://docs.powerdns.com/recursor/lua-config/protobuf.html#protobufServer
// for the list of supported resource record types.
message DNSRR {
optional string name = 1; // Fully qualified DNS name (with trailing dot)
optional uint32 type = 2; // https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-4
optional uint32 class = 3; // Typically 1 (IN), see https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-2
optional uint32 ttl = 4; // TTL in seconds
optional bytes rdata = 5; // raw address bytes in network byte order for A & AAAA; text representation for others, with fully qualified (trailing dot) domain names
optional bool udr = 6; // True if this is the first time this RR has been seen for this question
}
optional uint32 rcode = 1; // DNS Response code, or 65536 for a network error including a timeout
repeated DNSRR rrs = 2; // DNS resource records in response
optional string appliedPolicy = 3; // Filtering policy (RPZ or Lua) applied
repeated string tags = 4; // Additional tags applied
optional uint32 queryTimeSec = 5; // Time of the corresponding query reception (seconds since epoch)
optional uint32 queryTimeUsec = 6; // Time of the corresponding query reception (additional micro-seconds)
optional PolicyType appliedPolicyType = 7; // Type of the filtering policy (RPZ or Lua) applied
optional string appliedPolicyTrigger = 8; // The RPZ trigger
optional string appliedPolicyHit = 9; // The value (qname or IP) that caused the hit
optional PolicyKind appliedPolicyKind = 10; // The Kind (RPZ action) applied by the hit
optional VState validationState = 11; // The DNSSEC Validation State
}
optional DNSResponse response = 13;
optional bytes originalRequestorSubnet = 14; // EDNS Client Subnet value (4 or 16 raw bytes in network byte order)
optional string requestorId = 15; // Username of the requestor
optional bytes initialRequestId = 16; // UUID of the incoming query that initiated this outgoing query or incoming response
optional bytes deviceId = 17; // Device ID of the requestor (could be mac address IP address or e.g. IMEI, format implementation dependent)
optional bool newlyObservedDomain = 18; // True if the domain has not been seen before
optional string deviceName = 19; // Device name of the requestor
optional uint32 fromPort = 20; // Source port of the DNS query (client)
optional uint32 toPort = 21; // Destination port of the DNS query (server)
message MetaValue {
repeated string stringVal = 1;
repeated int64 intVal = 2;
}
message Meta {
required string key = 1; // MUST be unique, so if you have multiple values they must be aggregated into one Meta
required MetaValue value = 2;
}
repeated Meta meta = 22; // Arbitrary meta-data - to be used in future rather than adding new fields all the time
// The well known EventTrace event numbers
enum EventType {
// Range 0..99: Generic events
CustomEvent = 0; // A custom event
ReqRecv = 1; // A request was received
PCacheCheck = 2; // A packet cache check was initiated or completed; value: bool cacheHit
AnswerSent = 3; // An answer was sent to the client
// Range 100: Recursor events
SyncRes = 100; // Recursor Syncres main function has started or completed; value: int rcode
LuaGetTag = 101; // Events below mark start or end of Lua hook calls; value: return value of hook
LuaGetTagFFI = 102;
LuaIPFilter = 103;
LuaPreRPZ = 104;
LuaPreResolve = 105;
LuaPreOutQuery = 106;
LuaPostResolve = 107;
LuaNoData = 108;
LuaNXDomain = 109;
LuaPostResolveFFI = 110;
AuthRequest = 120;
}
message Event {
required int64 ts = 1; // Timestamp in ns relative to time of creation of event trace data structure
required EventType event = 2; // Type of event
required bool start = 3; // true for "start" events, false for "completed" events
optional bool boolVal = 4; // Below are optional values associated with events
optional int64 intVal = 5;
optional string stringVal = 6;
optional bytes bytesVal = 7;
optional string custom = 8; // The name of the event for custom events
}
repeated Event trace = 23;
optional HTTPVersion httpVersion = 24; // HTTP version used for DNS over HTTP
optional uint64 workerId = 25; // Thread id
optional bool packetCacheHit = 26; // Was it a packet cache hit?
optional uint32 outgoingQueries = 27; // Number of outgoing queries used to answer the query
optional uint32 headerFlags = 28; // Flags field in wire format, 16 bits used
optional uint32 ednsVersion = 29; // EDNS version and flags in wire format, see https://www.rfc-editor.org/rfc/rfc6891.html#section-6.1.3
optional bytes openTelemetryData = 30; // Protobuf encoded Open Telemetry Data, see https://github.com/open-telemetry/opentelemetry-proto/blob/main/opentelemetry/proto/trace/v1/trace.proto
}
message PBDNSMessageList {
repeated PBDNSMessage msg = 1;
}
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