547 lines
25 KiB
Cap'n Proto
547 lines
25 KiB
Cap'n Proto
@0x8ffce8033734ab02;
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# IDs And Hashes
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##############################
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struct Key256 @0xdde44e3286f6a90d {
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u0 @0 :UInt64;
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u1 @1 :UInt64;
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u2 @2 :UInt64;
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u3 @3 :UInt64;
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}
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struct Signature512 @0x806749043a129c12 {
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u0 @0 :UInt64;
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u1 @1 :UInt64;
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u2 @2 :UInt64;
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u3 @3 :UInt64;
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u4 @4 :UInt64;
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u5 @5 :UInt64;
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u6 @6 :UInt64;
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u7 @7 :UInt64;
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}
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struct Nonce24 @0xb6260db25d8d7dfc {
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u0 @0 :UInt64;
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u1 @1 :UInt64;
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u2 @2 :UInt64;
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}
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using PublicKey = Key256; # Node id / Hash / DHT key / Route id, etc
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using Nonce = Nonce24; # One-time encryption nonce
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using Signature = Signature512; # Signature block
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using TunnelID = UInt64; # Id for tunnels
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using CryptoKind = UInt32; # FOURCC code for cryptography type
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using ValueSeqNum = UInt32; # sequence numbers for values
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using Subkey = UInt32; # subkey index for dht
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using Capability = UInt32; # FOURCC code for capability
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struct TypedKey @0xe2d567a9f1e61b29 {
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kind @0 :CryptoKind;
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key @1 :PublicKey;
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}
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struct TypedSignature @0x963170c7298e3884 {
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kind @0 :CryptoKind;
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signature @1 :Signature;
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}
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# Node Dial Info
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################################################################
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struct AddressIPV4 @0xdb8769881266a6a0 {
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addr @0 :UInt32; # Address in big endian format
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}
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struct AddressIPV6 @0xb35d6e6011dc5c20 {
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addr0 @0 :UInt32; # \
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addr1 @1 :UInt32; # \ Address in big
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addr2 @2 :UInt32; # / endian format
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addr3 @3 :UInt32; # /
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}
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struct Address @0x812706e9e57d108b {
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union {
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ipv4 @0 :AddressIPV4;
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ipv6 @1 :AddressIPV6;
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}
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}
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struct SocketAddress @0x82df4272f4dd3a62 {
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address @0 :Address;
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port @1 :UInt16;
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}
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enum ProtocolKind @0xde0bf5787c067d5a {
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udp @0;
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ws @1;
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wss @2;
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tcp @3;
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}
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struct DialInfoUDP @0xbb38a8b8b7024a7c {
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socketAddress @0 :SocketAddress;
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}
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struct DialInfoTCP @0x9e0a9371b9a9f7fc {
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socketAddress @0 :SocketAddress;
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}
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struct DialInfoWS @0xd7795f7a92ab15b0 {
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socketAddress @0 :SocketAddress;
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request @1 :Text;
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}
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struct DialInfoWSS @0xe639faa41b7d7b04 {
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socketAddress @0 :SocketAddress;
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request @1 :Text;
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}
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struct DialInfo @0xe1cd1c39fc2defdf {
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union {
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udp @0 :DialInfoUDP;
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tcp @1 :DialInfoTCP;
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ws @2 :DialInfoWS;
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wss @3 :DialInfoWSS;
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}
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}
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# Signals
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##############################
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struct SignalInfoHolePunch @0xeeb9ab6861890c9a {
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receipt @0 :Data; # receipt to return with hole punch
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peerInfo @1 :PeerInfo; # peer info of the signal sender for hole punch attempt
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}
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struct SignalInfoReverseConnect @0xd9ebd3bd0d46e013 {
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receipt @0 :Data; # receipt to return with reverse connect
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peerInfo @1 :PeerInfo; # peer info of the signal sender for reverse connect attempt
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}
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# Private Routes
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##############################
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struct RouteHopData @0x8ce231f9d1b7adf2 {
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nonce @0 :Nonce; # nonce for encrypted blob
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blob @1 :Data; # encrypted blob with ENC(nonce,DH(PK,SK))
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# if this is a safety route RouteHopData, there is a single byte tag appended to the end of the encrypted blob
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# it can be one of:
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# if more hops remain in this route: RouteHop (0 byte appended as tag)
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# if end of safety route and starting private route: PrivateRoute (1 byte appended as tag)
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# if this is a private route RouteHopData, only can decode to RouteHop, no tag is appended
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}
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struct RouteHop @0xf8f672d75cce0c3b {
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node :union {
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nodeId @0 :PublicKey; # node id key only for established routes (kind is the same as the pr or sr it is part of)
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peerInfo @1 :PeerInfo; # full peer info for this hop to establish the route
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}
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nextHop @2 :RouteHopData; # optional: If this the end of a private route, this field will not exist
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# if this is a safety route routehop, this field is not optional and must exist
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}
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struct PrivateRoute @0x8a83fccb0851e776 {
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publicKey @0 :TypedKey; # private route public key (unique per private route)
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hopCount @1 :UInt8; # Count of hops left in the private route (for timeout calculation purposes only)
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hops :union {
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firstHop @2 :RouteHop; # first hop of a private route is unencrypted (hopcount > 0)
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data @3 :RouteHopData; # private route has more hops (hopcount > 0 && hopcount < total_hopcount)
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empty @4 :Void; # private route has ended (hopcount = 0)
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}
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}
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struct SafetyRoute @0xf554734d07cb5d59 {
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publicKey @0 :TypedKey; # safety route public key (unique per safety route)
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hopCount @1 :UInt8; # Count of hops left in the safety route (for timeout calculation purposes only)
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hops :union {
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data @2 :RouteHopData; # safety route has more hops
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private @3 :PrivateRoute; # safety route has ended and private route follows
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}
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}
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# Operations
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##############################
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enum NetworkClass @0x8cebfc2a6230717f {
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invalid @0; # X = Invalid network class, network is not yet set up
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inboundCapable @1; # I = Inbound capable without relay, may require signal
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outboundOnly @2; # O = Outbound only, inbound relay required except with reverse connect signal
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webApp @3; # W = PWA, outbound relay is required in most cases
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}
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enum DialInfoClass @0x880005edfdd38b1e {
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direct @0; # D = Directly reachable with public IP and no firewall, with statically configured port
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mapped @1; # M = Directly reachable with via portmap behind any NAT or firewalled with dynamically negotiated port
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fullConeNAT @2; # F = Directly reachable device without portmap behind full-cone NAT
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blocked @3; # B = Inbound blocked at firewall but may hole punch with public address
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addressRestrictedNAT @4; # A = Device without portmap behind address-only restricted NAT
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portRestrictedNAT @5; # P = Device without portmap behind address-and-port restricted NAT
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}
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enum Sequencing @0xb6735890f7818a1c {
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noPreference @0;
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preferOrdered @1;
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ensureOrdered @2;
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}
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struct DialInfoDetail @0x96423aa1d67b74d8 {
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dialInfo @0 :DialInfo;
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class @1 :DialInfoClass;
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}
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struct NodeStatus @0xd36b9e7a3bf3330d {
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# Reserved for non-nodeinfo status
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}
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struct ProtocolTypeSet @0x82f12f55a1b73326 {
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udp @0 :Bool;
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tcp @1 :Bool;
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ws @2 :Bool;
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wss @3 :Bool;
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}
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struct AddressTypeSet @0x9f52d5430d349e6b {
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ipv4 @0 :Bool;
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ipv6 @1 :Bool;
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}
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struct SenderInfo @0x8a4464fab4b1d101 {
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socketAddress @0 :SocketAddress; # socket address that for the sending peer
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}
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struct NodeInfo @0xe125d847e3f9f419 {
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networkClass @0 :NetworkClass; # network class of this node
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outboundProtocols @1 :ProtocolTypeSet; # protocols that can go outbound
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addressTypes @2 :AddressTypeSet; # address types supported
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envelopeSupport @3 :List(UInt8); # supported rpc envelope/receipt versions
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cryptoSupport @4 :List(CryptoKind); # cryptography systems supported
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capabilities @5 :List(Capability); # capabilities supported by the node
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dialInfoDetailList @6 :List(DialInfoDetail); # inbound dial info details for this node
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}
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struct SignedDirectNodeInfo @0xe0e7ea3e893a3dd7 {
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nodeInfo @0 :NodeInfo; # node info
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timestamp @1 :UInt64; # when signed node info was generated
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signatures @2 :List(TypedSignature); # signatures
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}
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struct SignedRelayedNodeInfo @0xb39e8428ccd87cbb {
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nodeInfo @0 :NodeInfo; # node info
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relayIds @1 :List(TypedKey); # node ids for relay
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relayInfo @2 :SignedDirectNodeInfo; # signed node info for relay
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timestamp @3 :UInt64; # when signed node info was generated
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signatures @4 :List(TypedSignature); # signatures
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}
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struct SignedNodeInfo @0xd2478ce5f593406a {
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union {
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direct @0 :SignedDirectNodeInfo; # node info for nodes reachable without a relay
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relayed @1 :SignedRelayedNodeInfo; # node info for nodes requiring a relay
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}
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}
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struct PeerInfo @0xfe2d722d5d3c4bcb {
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nodeIds @0 :List(TypedKey); # node ids for 'closer peer'
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signedNodeInfo @1 :SignedNodeInfo; # signed node info for 'closer peer'
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}
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struct RoutedOperation @0xcbcb8535b839e9dd {
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sequencing @0 :Sequencing; # sequencing preference to use to pass the message along
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signatures @1 :List(Signature); # signatures from nodes that have handled the private route
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nonce @2 :Nonce; # nonce Xmsg
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data @3 :Data; # operation encrypted with ENC(Xmsg,DH(PKapr,SKbsr))
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}
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struct OperationStatusQ @0x865d80cea70d884a {
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nodeStatus @0 :NodeStatus; # Optional: node status update about the statusq sender
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}
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struct OperationStatusA @0xb306f407fa812a55 {
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nodeStatus @0 :NodeStatus; # Optional: returned node status
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senderInfo @1 :SenderInfo; # Optional: info about StatusQ sender from the perspective of the replier
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}
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struct OperationValidateDialInfo @0xbc716ad7d5d060c8 {
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dialInfo @0 :DialInfo; # dial info to use for the receipt
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receipt @1 :Data; # receipt to return to dial info to prove it is reachable
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redirect @2 :Bool; # request a different node do the validate
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}
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struct OperationReturnReceipt @0xeb0fb5b5a9160eeb {
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receipt @0 :Data; # receipt being returned to its origin
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}
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struct OperationFindNodeQ @0xfdef788fe9623bcd {
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nodeId @0 :TypedKey; # node id to locate
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}
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struct OperationFindNodeA @0xa84cf2fb40c77089 {
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peers @0 :List(PeerInfo); # returned 'closer peer' information
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}
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struct OperationRoute @0x96741859ce6ac7dd {
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safetyRoute @0 :SafetyRoute; # where this should go
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operation @1 :RoutedOperation; # the operation to be routed
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}
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struct OperationAppCallQ @0xade67b9f09784507 {
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message @0 :Data; # opaque request to application
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}
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struct OperationAppCallA @0xf7c797ac85f214b8 {
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message @0 :Data; # opaque response from application
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}
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struct OperationAppMessage @0x9baf542d81b411f5 {
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message @0 :Data; # opaque message to application
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}
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struct SubkeyRange @0xf592dac0a4d0171c {
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start @0 :Subkey; # the start of a subkey range
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end @1 :Subkey; # the end of a subkey range
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}
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struct SignedValueData @0xb4b7416f169f2a3d {
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seq @0 :ValueSeqNum; # sequence number of value
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data @1 :Data; # value or subvalue contents
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writer @2 :PublicKey; # the public key of the writer
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signature @3 :Signature; # signature of data at this subkey, using the writer key (which may be the same as the owner key)
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# signature covers:
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# * ownerKey
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# * subkey
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# * sequence number
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# * data
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# signature does not need to cover schema because schema is validated upon every set
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# so the data either fits, or it doesn't.
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}
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struct SignedValueDescriptor @0xe7911cd3f9e1b0e7 {
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owner @0 :PublicKey; # the public key of the owner
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schemaData @1 :Data; # the schema data
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# Changing this after key creation is not supported as it would change the dht key
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signature @2 :Signature; # Schema data is signed by ownerKey and is verified both by set and get operations
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}
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struct OperationGetValueQ @0xf88a5b6da5eda5d0 {
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key @0 :TypedKey; # DHT Key = Hash(ownerKeyKind) of: [ ownerKeyValue, schema ]
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subkey @1 :Subkey; # the index of the subkey
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wantDescriptor @2 :Bool; # whether or not to include the descriptor for the key
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}
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struct OperationGetValueA @0xd896bb46f2e0249f {
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value @0 :SignedValueData; # optional: the value if successful, or if unset, no value returned
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peers @1 :List(PeerInfo); # returned 'closer peer' information on either success or failure
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descriptor @2 :SignedValueDescriptor; # optional: the descriptor if requested if the value is also returned
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}
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struct OperationSetValueQ @0xbac06191ff8bdbc5 {
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key @0 :TypedKey; # DHT Key = Hash(ownerKeyKind) of: [ ownerKeyValue, schema ]
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subkey @1 :Subkey; # the index of the subkey
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value @2 :SignedValueData; # value or subvalue contents (older or equal seq number gets dropped)
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descriptor @3 :SignedValueDescriptor; # optional: the descriptor if needed
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}
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struct OperationSetValueA @0x9378d0732dc95be2 {
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set @0 :Bool; # true if the set was close enough to be set
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value @1 :SignedValueData; # optional: the current value at the key if the set seq number was lower or equal to what was there before
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peers @2 :List(PeerInfo); # returned 'closer peer' information on either success or failure
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}
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struct OperationWatchValueQ @0xf9a5a6c547b9b228 {
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key @0 :TypedKey; # key for value to watch
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subkeys @1 :List(SubkeyRange); # subkey range to watch (up to 512 subranges), if empty, watch everything
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expiration @2 :UInt64; # requested timestamp when this watch will expire in usec since epoch (can be return less, 0 for max)
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count @3 :UInt32; # requested number of changes to watch for (0 = cancel, 1 = single shot, 2+ = counter, UINT32_MAX = continuous)
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watcher @4 :PublicKey; # the watcher performing the watch, can be the owner or a schema member
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signature @5 :Signature; # signature of the watcher, must be one of the schema members or the key owner. signature covers: key, subkeys, expiration, count
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}
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struct OperationWatchValueA @0xa726cab7064ba893 {
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expiration @0 :UInt64; # timestamp when this watch will expire in usec since epoch (0 if watch failed)
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peers @1 :List(PeerInfo); # returned list of other nodes to ask that could propagate watches
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}
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struct OperationValueChanged @0xd1c59ebdd8cc1bf6 {
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key @0 :TypedKey; # key for value that changed
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subkeys @1 :List(SubkeyRange); # subkey range that changed (up to 512 ranges at a time)
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count @2 :UInt32; # remaining changes left (0 means watch has expired)
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value @3 :SignedValueData; # first value that changed (the rest can be gotten with getvalue)
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}
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struct OperationSupplyBlockQ @0xadbf4c542d749971 {
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blockId @0 :TypedKey; # hash of the block we can supply
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}
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struct OperationSupplyBlockA @0xf003822e83b5c0d7 {
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expiration @0 :UInt64; # when the block supplier entry will need to be refreshed, or 0 if not successful
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peers @1 :List(PeerInfo); # returned 'closer peer' information if not successful
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}
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struct OperationFindBlockQ @0xaf4353ff004c7156 {
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blockId @0 :TypedKey; # hash of the block to locate
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}
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struct OperationFindBlockA @0xc51455bc4915465d {
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data @0 :Data; # Optional: the actual block data if we have that block ourselves
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# null if we don't have a block to return
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suppliers @1 :List(PeerInfo); # returned list of suppliers if we have them
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peers @2 :List(PeerInfo); # returned 'closer peer' information
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}
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struct OperationSignal @0xd4f94f2a5d207e49 {
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union {
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holePunch @0 :SignalInfoHolePunch;
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reverseConnect @1 :SignalInfoReverseConnect;
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}
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}
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enum TunnelEndpointMode @0xef06f4c29beb7458 {
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raw @0; # raw tunnel
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turn @1; # turn tunnel
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}
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enum TunnelError @0xb82c6bfb1ec38c7c {
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badId @0; # Tunnel ID was rejected
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noEndpoint @1; # Endpoint was unreachable
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rejectedMode @2; # Endpoint couldn't provide mode
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noCapacity @3; # Endpoint is full
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}
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struct TunnelEndpoint @0xc2602aa983cc337d {
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mode @0 :TunnelEndpointMode; # what kind of endpoint this is
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description @1 :Text; # endpoint description (TODO)
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}
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struct FullTunnel @0x9821c3dc75373f63 {
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id @0 :TunnelID; # tunnel id to use everywhere
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timeout @1 :UInt64; # duration from last data when this expires if no data is sent or received
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local @2 :TunnelEndpoint; # local endpoint
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remote @3 :TunnelEndpoint; # remote endpoint
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}
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struct PartialTunnel @0x827a7ebc02be2fc8 {
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id @0 :TunnelID; # tunnel id to use everywhere
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timeout @1 :UInt64; # timestamp when this expires if not completed
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local @2 :TunnelEndpoint; # local endpoint
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}
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struct OperationStartTunnelQ @0xa9c49afce44187af {
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id @0 :TunnelID; # tunnel id to use everywhere
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localMode @1 :TunnelEndpointMode; # what kind of local endpoint mode is being requested
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depth @2 :UInt8; # the number of nodes in the tunnel
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}
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struct OperationStartTunnelA @0x818162e4cc61bf1e {
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union {
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partial @0 :PartialTunnel; # the first half of the tunnel
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error @1 :TunnelError; # if we didn't start the tunnel, why not
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}
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}
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struct OperationCompleteTunnelQ @0xe978594588eb950b {
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id @0 :TunnelID; # tunnel id to use everywhere
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localMode @1 :TunnelEndpointMode; # what kind of local endpoint mode is being requested
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depth @2 :UInt8; # the number of nodes in the tunnel
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endpoint @3 :TunnelEndpoint; # the remote endpoint to complete
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}
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struct OperationCompleteTunnelA @0x84090791bb765f2a {
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union {
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tunnel @0 :FullTunnel; # the tunnel description
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error @1 :TunnelError; # if we didn't complete the tunnel, why not
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}
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}
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struct OperationCancelTunnelQ @0xae2811ae0a003738 {
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id @0 :TunnelID; # the tunnel id to cancel
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}
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struct OperationCancelTunnelA @0xbba23c992eff97bc {
|
|
union {
|
|
tunnel @0 :TunnelID; # the tunnel id that was cancelled
|
|
error @1 :TunnelError; # if we couldn't cancel, why not
|
|
}
|
|
}
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|
|
|
# Things that want an answer
|
|
struct Question @0xd8510bc33492ef70 {
|
|
respondTo :union {
|
|
sender @0 :Void; # sender
|
|
privateRoute @1 :PrivateRoute; # embedded private route to be used for reply
|
|
}
|
|
detail :union {
|
|
# Direct operations
|
|
statusQ @2 :OperationStatusQ;
|
|
findNodeQ @3 :OperationFindNodeQ;
|
|
|
|
# Routable operations
|
|
appCallQ @4 :OperationAppCallQ;
|
|
getValueQ @5 :OperationGetValueQ;
|
|
setValueQ @6 :OperationSetValueQ;
|
|
watchValueQ @7 :OperationWatchValueQ;
|
|
# #[cfg(feature="unstable-blockstore")]
|
|
# supplyBlockQ @8 :OperationSupplyBlockQ;
|
|
# findBlockQ @9 :OperationFindBlockQ;
|
|
|
|
# Tunnel operations
|
|
# #[cfg(feature="unstable-tunnels")]
|
|
# startTunnelQ @10 :OperationStartTunnelQ;
|
|
# completeTunnelQ @11 :OperationCompleteTunnelQ;
|
|
# cancelTunnelQ @12 :OperationCancelTunnelQ;
|
|
}
|
|
}
|
|
|
|
# Things that don't want an answer
|
|
struct Statement @0x990e20828f404ae1 {
|
|
detail :union {
|
|
# Direct operations
|
|
validateDialInfo @0 :OperationValidateDialInfo;
|
|
route @1 :OperationRoute;
|
|
|
|
# Routable operations
|
|
signal @2 :OperationSignal;
|
|
returnReceipt @3 :OperationReturnReceipt;
|
|
appMessage @4 :OperationAppMessage;
|
|
valueChanged @5 :OperationValueChanged;
|
|
}
|
|
}
|
|
|
|
# Things that are answers
|
|
struct Answer @0xacacb8b6988c1058 {
|
|
detail :union {
|
|
# Direct operations
|
|
statusA @0 :OperationStatusA;
|
|
findNodeA @1 :OperationFindNodeA;
|
|
|
|
# Routable operations
|
|
appCallA @2 :OperationAppCallA;
|
|
getValueA @3 :OperationGetValueA;
|
|
setValueA @4 :OperationSetValueA;
|
|
watchValueA @5 :OperationWatchValueA;
|
|
|
|
# #[cfg(feature="unstable-blockstore")]
|
|
#supplyBlockA @6 :OperationSupplyBlockA;
|
|
#findBlockA @7 :OperationFindBlockA;
|
|
|
|
# Tunnel operations
|
|
# #[cfg(feature="unstable-tunnels")]
|
|
# startTunnelA @8 :OperationStartTunnelA;
|
|
# completeTunnelA @9 :OperationCompleteTunnelA;
|
|
# cancelTunnelA @10 :OperationCancelTunnelA;
|
|
}
|
|
}
|
|
|
|
struct Operation @0xbf2811c435403c3b {
|
|
opId @0 :UInt64; # Random RPC ID. Must be random to foil reply forgery attacks.
|
|
senderPeerInfo @1 :PeerInfo; # (optional) PeerInfo for the sender to be cached by the receiver.
|
|
targetNodeInfoTs @2 :UInt64; # Timestamp the sender believes the target's node info to be at or zero if not sent
|
|
kind :union {
|
|
question @3 :Question;
|
|
statement @4 :Statement;
|
|
answer @5 :Answer;
|
|
}
|
|
}
|