feat(protocol): carry complete encoded media frames

.gitea/workflows/verify.yml

@@ -20,8 +20,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
-      - uses: actions/setup-go@v7
+      - uses: actions/setup-go@b7ad1dad31e06c5925ef5d2fc7ad053ef454303e # v7
         with:
           go-version: "1.26.5"
           cache: true
@@ -44,7 +44,7 @@ jobs:
     runs-on: macos-26
     timeout-minutes: 30
     steps:
-      - uses: actions/checkout@v7
+      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7
       - name: Assert pinned toolchain
         shell: bash
         run: |

Makefile

@@ -1,4 +1,4 @@
-.PHONY: verify generate proto-lint proto-breaking source-verify scope-verify conformance frame-verify go-test binding-compile strict-contracts clean-generated
+.PHONY: verify generate proto-lint proto-breaking source-verify scope-verify ci-verify conformance frame-verify go-test binding-compile strict-contracts clean-generated
 
 PYTHON ?= python3
 PROTOC ?= protoc
@@ -23,6 +23,9 @@ scope-verify:
 	$(PYTHON) -B tools/test_check_scope.py
 	$(PYTHON) -B tools/check_scope.py
 
+ci-verify:
+	$(PYTHON) -B tools/check_ci_actions.py
+
 go-test:
 	go test ./gen/go/... ./tests/go
 
@@ -45,4 +48,4 @@ frame-verify:
 clean-generated:
 	$(PYTHON) tools/generate.py --check
 
-verify: generate proto-lint proto-breaking source-verify scope-verify go-test binding-compile strict-contracts conformance frame-verify clean-generated
+verify: generate proto-lint proto-breaking source-verify scope-verify ci-verify go-test binding-compile strict-contracts conformance frame-verify clean-generated

fixtures/conformance/datagram-v1.tsv

@@ -1,7 +1,7 @@
 id	version	kind	input	expected
 valid-empty-control	1	datagram	hex=564401010000000000000000000000000000010000	valid
 invalid-short	1	datagram	hex=564401	invalid:truncated
-invalid-version	1	datagram	hex=564402010000000000000000000000000000010000	invalid:unsupported_version
+invalid-version	1	datagram	hex=564403010000000000000000000000000000010000	invalid:unsupported_version
 invalid-channel	1	datagram	hex=564401990000000000000000000000000000010000	invalid:unknown_channel
 invalid-length	1	datagram	hex=564401010000000000000000000000000000010001	invalid:length_mismatch
 valid-video-empty	1	datagram	hex=5644010a0000000000000000000000000000010000	valid

fixtures/conformance/datagram-v2.tsv

@@ -0,0 +1,10 @@
+id	version	kind	input	expected
+v2-valid-video-single	2	datagram	hex=5644020a00000000010000000000000002000000010003010203	valid
+v2-valid-video-last-fragment	2	datagram	hex=5644020a00000000010000000000000002037a037b0000	valid
+v2-invalid-short	2	datagram	hex=564402	invalid:truncated
+v2-invalid-version	2	datagram	hex=5644030a00000000010000000000000002000000010000	invalid:unsupported_version
+v2-invalid-channel	2	datagram	hex=5644020d00000000010000000000000002000000010000	invalid:unknown_channel
+v2-invalid-fragment-zero	2	datagram	hex=5644020a00000000010000000000000002000000000000	invalid:fragment
+v2-invalid-fragment-index	2	datagram	hex=5644020a00000000010000000000000002000100010000	invalid:fragment
+v2-invalid-fragment-count-limit	2	datagram	hex=5644020a000000000100000000000000020000037c0000	invalid:fragment_limit
+v2-invalid-length	2	datagram	hex=5644020a00000000010000000000000002000000010001	invalid:length_mismatch

fixtures/conformance/gateway-input-feedback-v1.tsv

@@ -9,6 +9,7 @@ valid-controller	1	gateway_input	hex=5647493105110200030004ffff00010002000300040
 valid-controller-release	1	gateway_input	hex=5647493105110200000000000000000000000000000000	valid
 valid-idr	1	gateway_feedback	hex=5647463100010000	valid
 valid-fec	1	gateway_feedback	hex=56474631000200150000002a000500030002000a000200080002140001	valid
+valid-terminal-receipt	1	gateway_feedback	hex=5647463100030000	valid
 valid-termination	1	gateway_feedback	hex=564746310110000400000001	valid
 valid-rumble	1	gateway_feedback	hex=56474631011100050112345678	valid
 valid-hdr	1	gateway_feedback	hex=564746310112000101	valid
@@ -18,5 +19,9 @@ invalid-input-reserved	1	gateway_input	hex=564749310203010101	invalid:reserved
 invalid-input-utf8	1	gateway_input	hex=564749310402c328	invalid:utf8
 invalid-input-length	1	gateway_input	hex=564749310104010200	invalid:length
 invalid-feedback-direction	1	gateway_feedback	hex=5647463101020000	invalid:direction
-invalid-feedback-type	1	gateway_feedback	hex=5647463100030000	invalid:type
+invalid-terminal-receipt-direction	1	gateway_feedback	hex=5647463101030000	invalid:direction
+invalid-terminal-receipt-body	1	gateway_feedback	hex=5647463100030001ff	invalid:length
+invalid-terminal-receipt-truncated	1	gateway_feedback	hex=56474631000300	invalid:truncated
+invalid-terminal-receipt-length	1	gateway_feedback	hex=5647463100030001	invalid:length
+invalid-feedback-type	1	gateway_feedback	hex=5647463100040000	invalid:type
 invalid-feedback-length	1	gateway_feedback	hex=5647463101100003000000	invalid:length

fixtures/manifest.json

@@ -3,11 +3,12 @@
   "files": [
     "fixtures/conformance/control-v1.tsv",
     "fixtures/conformance/datagram-v1.tsv",
+    "fixtures/conformance/datagram-v2.tsv",
     "fixtures/conformance/events-v1.tsv",
     "fixtures/conformance/gateway-clipboard-audit-v1.tsv",
     "fixtures/conformance/gateway-clipboard-v1.tsv",
     "fixtures/conformance/gateway-input-feedback-v1.tsv",
     "fixtures/conformance/tunnel-v1.tsv"
   ],
-  "corpus_sha256": "69d5b12a533ff0d9786784b99aecc8a74a7ec2c6855b75c52e46ecff5bd3e6c5"
+  "corpus_sha256": "544ba8765b4ddcfbe807d1d6e6788fe03d06b8e50d1424b82e4e512312e51248"
 }

frames/datagram-v2.md

@@ -0,0 +1,31 @@
+# VerseVDI complete media datagram v2
+
+Datagram v2 carries one complete encoded video or audio unit under one sequence.
+It is negotiated explicitly as `datagram-v2`; v1 bytes are never reinterpreted.
+The gateway relays encoded bytes without codec processing or provider exposure.
+
+All multi-byte integers are unsigned big-endian. The fixed header is 23 bytes:
+
+| Offset | Size | Field | Rule |
+|---:|---:|---|---|
+| 0 | 2 | magic | ASCII `VD` (`0x56 0x44`) |
+| 2 | 1 | version | `2` only |
+| 3 | 1 | channel | `media.video.v1` (10) or `media.audio.v1` (11) |
+| 4 | 1 | flags | zero; unknown bits reject |
+| 5 | 4 | sequence | session-local wrapping complete-unit sequence |
+| 9 | 8 | timestamp_ms | sender timestamp, bounded by transport skew policy |
+| 17 | 2 | fragment_index | zero-based |
+| 19 | 2 | fragment_count | 1 through 891; index less than count |
+| 21 | 2 | payload_length | exact payload byte count, at most 1,177 |
+
+Each QUIC datagram is at most 1,200 bytes. One complete unit is at most
+1,048,576 encoded bytes and 891 fragments. A sender rejects a larger unit
+before fragmentation.
+
+A receiver retains at most four incomplete media units and only received
+fragment bytes. Fragments for one unit must agree on channel, sequence,
+timestamp, flags, and count. Exact duplicates are ignored; conflicting
+duplicates reject that unit. Bounded reorder is accepted. An incomplete unit
+expires after 250 milliseconds, and accepting a fifth incomplete unit evicts
+the oldest. Reassembly checks the 1,048,576-byte ceiling before appending and
+emits only after every fragment is present.

frames/gateway-input-feedback-v1.md

@@ -53,8 +53,9 @@ is the following exact envelope:
 | 6 | 2 | payload length | exact payload byte count |
 | 8 | N | payload | exact type-specific body |
 
-The client-to-gateway types are `0x01` IDR request (empty) and `0x02` FEC
+The client-to-gateway types are `0x01` IDR request (empty), `0x02` FEC
-status: `frame_index` (u32), `highest_received_sequence` (u16),
+status, and `0x03` terminal receipt (empty). FEC status contains
+`frame_index` (u32), `highest_received_sequence` (u16),
 `next_contiguous_sequence` (u16), `missing_before_highest` (u16),
 `total_data_packets` (u16), `total_parity_packets` (u16),
 `received_data_packets` (u16), `received_parity_packets` (u16),
@@ -63,6 +64,10 @@ status: `frame_index` (u32), `highest_received_sequence` (u16),
 the provider's unsequenced ENet FEC delivery; it does not put it on the reliable
 provider input path.
 
+The terminal receipt is valid only from client to gateway with an exact
+zero-byte payload. Session-state authorization remains a gateway responsibility;
+the Protocol grammar defines only its fixed wire shape.
+
 The gateway-to-client types are `0x10` host termination (`exit_code` u32),
 `0x11` rumble (`controller` u8, `low_frequency` u16,
 `high_frequency` u16), and `0x12` HDR mode (`enabled` exactly `0` or `1`). The

frames/registry.json

@@ -1,6 +1,7 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "version": "1",
+  "framing_profiles": ["datagram-v1", "datagram-v2"],
   "header_bytes": 21,
   "maximum_frame_bytes": 65536,
   "channels": [

gen/go/protocol/protocol.go

@@ -13,7 +13,7 @@ import (
 	"time"
 )
 
-const SchemaSHA256 = "e98c75ef81bbeac6be2b8f11202c1ffecec0aa515b48576a26756290e99d5dd8"
+const SchemaSHA256 = "a86cbdaf2cfb884e3d98467968007e731ca55c6f6eb6dbd5cd6b95e062a9b058"
 const ProtocolVersion = "1.0.0"
 const CurrentWireVersion = "1"
 const NMinus1WireVersion = "0"
@@ -73,7 +73,7 @@ type CapabilityProfile struct {
 	Media             string   `json:"media"`
 	Audio             string   `json:"audio"`
 	SourceRateControl string   `json:"source_rate_control"`
-	ClientDecode      string `json:"client_decode"`
+	ClientDecode      []string `json:"client_decode"`
 }
 
 type ChannelFrame struct {
@@ -198,6 +198,7 @@ type GatewayHeartbeat struct {
 	ActiveConnections int64            `json:"active_connections"`
 	EgressKbps        int64            `json:"egress_kbps"`
 	State             string           `json:"state"`
+	Telemetry         GatewayTelemetry `json:"telemetry"`
 }
 
 type GatewayRegistration struct {
@@ -216,6 +217,27 @@ type GatewayRegistration struct {
 	Capabilities          CapabilityProfile `json:"capabilities"`
 }
 
+type GatewayTelemetry struct {
+	AdmittedSessions      int64  `json:"admitted_sessions"`
+	AdmissionRejects      int64  `json:"admission_rejects"`
+	Reconnects            int64  `json:"reconnects"`
+	DrainTransitions      int64  `json:"drain_transitions"`
+	MediaDrops            int64  `json:"media_drops"`
+	MediaPackets          int64  `json:"media_packets"`
+	MediaBytes            int64  `json:"media_bytes"`
+	QueueDelayMicros      int64  `json:"queue_delay_micros"`
+	ProcessingDelayMicros int64  `json:"processing_delay_micros"`
+	ProcessingSamples     int64  `json:"processing_samples"`
+	PacingDelayMicros     int64  `json:"pacing_delay_micros"`
+	ProviderErrors        int64  `json:"provider_errors"`
+	InputRejected         int64  `json:"input_rejected"`
+	ControlRttMicros      int64  `json:"control_rtt_micros"`
+	ControlJitterMicros   int64  `json:"control_jitter_micros"`
+	ControlLossPpm        int64  `json:"control_loss_ppm"`
+	PendingReliable       int64  `json:"pending_reliable"`
+	ProviderState         string `json:"provider_state"`
+}
+
 type GrantReference struct {
 	OpaqueValue string `json:"opaque_value"`
 	ExpiresAt   string `json:"expires_at"`
@@ -273,6 +295,7 @@ type ProviderSessionWork struct {
 	ProviderProfile                       string               `json:"provider_profile"`
 	ProviderIdentity                      string               `json:"provider_identity"`
 	PolicyVersionID                       string               `json:"policy_version_id"`
+	StreamPolicy                          ProviderStreamPolicy `json:"stream_policy"`
 	ApplicationID                         string               `json:"application_id"`
 	ClientID                              string               `json:"client_id"`
 	ManagementHost                        string               `json:"management_host"`
@@ -294,6 +317,15 @@ type ProviderState struct {
 	Channels       []string `json:"channels"`
 }
 
+type ProviderStreamPolicy struct {
+	ResolutionWidth  int64  `json:"resolution_width"`
+	ResolutionHeight int64  `json:"resolution_height"`
+	Fps              int64  `json:"fps"`
+	Codec            string `json:"codec"`
+	BitrateKbps      int64  `json:"bitrate_kbps"`
+	AudioEnabled     bool   `json:"audio_enabled"`
+}
+
 type ReauthGrant struct {
 	Token     string `json:"token"`
 	Purpose   string `json:"purpose"`
@@ -819,11 +851,8 @@ func (v CapabilityProfile) Validate() error {
 	if v.Framing == "" {
 		violations = append(violations, FieldViolation{Field: "framing", Code: "required"})
 	}
-	if len(v.Framing) < 1 && v.Framing != "" {
+	if v.Framing != "" && !(v.Framing == "datagram-v1" || v.Framing == "datagram-v2") {
-		violations = append(violations, FieldViolation{Field: "framing", Code: "min_length"})
+		violations = append(violations, FieldViolation{Field: "framing", Code: "invalid_value"})
-	}
-	if len(v.Framing) > 64 {
-		violations = append(violations, FieldViolation{Field: "framing", Code: "max_length"})
 	}
 	if v.Media == "" {
 		violations = append(violations, FieldViolation{Field: "media", Code: "required"})
@@ -852,14 +881,26 @@ func (v CapabilityProfile) Validate() error {
 	if len(v.SourceRateControl) > 64 {
 		violations = append(violations, FieldViolation{Field: "source_rate_control", Code: "max_length"})
 	}
-	if v.ClientDecode == "" {
+	if v.ClientDecode == nil {
 		violations = append(violations, FieldViolation{Field: "client_decode", Code: "required"})
 	}
-	if len(v.ClientDecode) < 1 && v.ClientDecode != "" {
+	if len(v.ClientDecode) < 1 {
-		violations = append(violations, FieldViolation{Field: "client_decode", Code: "min_length"})
+		violations = append(violations, FieldViolation{Field: "client_decode", Code: "min_items"})
+	}
+	if len(v.ClientDecode) > 2 {
+		violations = append(violations, FieldViolation{Field: "client_decode", Code: "max_items"})
+	}
+	for _, item := range v.ClientDecode {
+		if !(item == "h264-opus" || item == "hevc-opus") {
+			violations = append(violations, FieldViolation{Field: "client_decode", Code: "invalid_item"})
+		}
+	}
+	for index, item := range v.ClientDecode {
+		for prior := 0; prior < index; prior++ {
+			if item == v.ClientDecode[prior] {
+				violations = append(violations, FieldViolation{Field: "client_decode", Code: "duplicate_item"})
+			}
 		}
-	if len(v.ClientDecode) > 64 {
-		violations = append(violations, FieldViolation{Field: "client_decode", Code: "max_length"})
 	}
 	if len(violations) > 0 {
 		return ValidationError{Violations: violations}
@@ -2370,6 +2411,12 @@ func (v GatewayHeartbeat) Validate() error {
 	if v.State != "" && !(v.State == "ready" || v.State == "draining" || v.State == "offline") {
 		violations = append(violations, FieldViolation{Field: "state", Code: "invalid_value"})
 	}
+	if reflect.DeepEqual(v.Telemetry, GatewayTelemetry{}) {
+		violations = append(violations, FieldViolation{Field: "telemetry", Code: "required"})
+	}
+	if err := v.Telemetry.Validate(); err != nil {
+		violations = append(violations, FieldViolation{Field: "telemetry", Code: "invalid_object"})
+	}
 	if len(violations) > 0 {
 		return ValidationError{Violations: violations}
 	}
@@ -2403,6 +2450,9 @@ func DecodeGatewayHeartbeat(data []byte) (GatewayHeartbeat, error) {
 	if raw, ok := fields["state"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
 		return value, ValidationError{Violations: []FieldViolation{{Field: "state", Code: "required"}}}
 	}
+	if raw, ok := fields["telemetry"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "telemetry", Code: "required"}}}
+	}
 	if raw, ok := fields["version"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
 		return value, ValidationError{Violations: []FieldViolation{{Field: "version", Code: "required"}}}
 	}
@@ -2623,6 +2673,210 @@ func EncodeGatewayRegistration(value GatewayRegistration) ([]byte, error) {
 	return json.Marshal(value)
 }
 
+func (v GatewayTelemetry) Validate() error {
+	var violations []FieldViolation
+	if v.AdmittedSessions != 0 && v.AdmittedSessions < 0 {
+		violations = append(violations, FieldViolation{Field: "admitted_sessions", Code: "minimum"})
+	}
+	if v.AdmittedSessions > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "admitted_sessions", Code: "maximum"})
+	}
+	if v.AdmissionRejects != 0 && v.AdmissionRejects < 0 {
+		violations = append(violations, FieldViolation{Field: "admission_rejects", Code: "minimum"})
+	}
+	if v.AdmissionRejects > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "admission_rejects", Code: "maximum"})
+	}
+	if v.Reconnects != 0 && v.Reconnects < 0 {
+		violations = append(violations, FieldViolation{Field: "reconnects", Code: "minimum"})
+	}
+	if v.Reconnects > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "reconnects", Code: "maximum"})
+	}
+	if v.DrainTransitions != 0 && v.DrainTransitions < 0 {
+		violations = append(violations, FieldViolation{Field: "drain_transitions", Code: "minimum"})
+	}
+	if v.DrainTransitions > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "drain_transitions", Code: "maximum"})
+	}
+	if v.MediaDrops != 0 && v.MediaDrops < 0 {
+		violations = append(violations, FieldViolation{Field: "media_drops", Code: "minimum"})
+	}
+	if v.MediaDrops > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "media_drops", Code: "maximum"})
+	}
+	if v.MediaPackets != 0 && v.MediaPackets < 0 {
+		violations = append(violations, FieldViolation{Field: "media_packets", Code: "minimum"})
+	}
+	if v.MediaPackets > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "media_packets", Code: "maximum"})
+	}
+	if v.MediaBytes != 0 && v.MediaBytes < 0 {
+		violations = append(violations, FieldViolation{Field: "media_bytes", Code: "minimum"})
+	}
+	if v.MediaBytes > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "media_bytes", Code: "maximum"})
+	}
+	if v.QueueDelayMicros != 0 && v.QueueDelayMicros < 0 {
+		violations = append(violations, FieldViolation{Field: "queue_delay_micros", Code: "minimum"})
+	}
+	if v.QueueDelayMicros > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "queue_delay_micros", Code: "maximum"})
+	}
+	if v.ProcessingDelayMicros != 0 && v.ProcessingDelayMicros < 0 {
+		violations = append(violations, FieldViolation{Field: "processing_delay_micros", Code: "minimum"})
+	}
+	if v.ProcessingDelayMicros > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "processing_delay_micros", Code: "maximum"})
+	}
+	if v.ProcessingSamples != 0 && v.ProcessingSamples < 0 {
+		violations = append(violations, FieldViolation{Field: "processing_samples", Code: "minimum"})
+	}
+	if v.ProcessingSamples > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "processing_samples", Code: "maximum"})
+	}
+	if v.PacingDelayMicros != 0 && v.PacingDelayMicros < 0 {
+		violations = append(violations, FieldViolation{Field: "pacing_delay_micros", Code: "minimum"})
+	}
+	if v.PacingDelayMicros > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "pacing_delay_micros", Code: "maximum"})
+	}
+	if v.ProviderErrors != 0 && v.ProviderErrors < 0 {
+		violations = append(violations, FieldViolation{Field: "provider_errors", Code: "minimum"})
+	}
+	if v.ProviderErrors > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "provider_errors", Code: "maximum"})
+	}
+	if v.InputRejected != 0 && v.InputRejected < 0 {
+		violations = append(violations, FieldViolation{Field: "input_rejected", Code: "minimum"})
+	}
+	if v.InputRejected > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "input_rejected", Code: "maximum"})
+	}
+	if v.ControlRttMicros != 0 && v.ControlRttMicros < 0 {
+		violations = append(violations, FieldViolation{Field: "control_rtt_micros", Code: "minimum"})
+	}
+	if v.ControlRttMicros > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "control_rtt_micros", Code: "maximum"})
+	}
+	if v.ControlJitterMicros != 0 && v.ControlJitterMicros < 0 {
+		violations = append(violations, FieldViolation{Field: "control_jitter_micros", Code: "minimum"})
+	}
+	if v.ControlJitterMicros > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "control_jitter_micros", Code: "maximum"})
+	}
+	if v.ControlLossPpm != 0 && v.ControlLossPpm < 0 {
+		violations = append(violations, FieldViolation{Field: "control_loss_ppm", Code: "minimum"})
+	}
+	if v.ControlLossPpm > 1000000 {
+		violations = append(violations, FieldViolation{Field: "control_loss_ppm", Code: "maximum"})
+	}
+	if v.PendingReliable != 0 && v.PendingReliable < 0 {
+		violations = append(violations, FieldViolation{Field: "pending_reliable", Code: "minimum"})
+	}
+	if v.PendingReliable > 9223372036854775807 {
+		violations = append(violations, FieldViolation{Field: "pending_reliable", Code: "maximum"})
+	}
+	if v.ProviderState == "" {
+		violations = append(violations, FieldViolation{Field: "provider_state", Code: "required"})
+	}
+	if v.ProviderState != "" && !(v.ProviderState == "unknown" || v.ProviderState == "starting" || v.ProviderState == "ready" || v.ProviderState == "disconnected" || v.ProviderState == "terminating" || v.ProviderState == "terminated" || v.ProviderState == "cleanup_pending" || v.ProviderState == "failed") {
+		violations = append(violations, FieldViolation{Field: "provider_state", Code: "invalid_value"})
+	}
+	if len(violations) > 0 {
+		return ValidationError{Violations: violations}
+	}
+	return nil
+}
+
+func DecodeGatewayTelemetry(data []byte) (GatewayTelemetry, error) {
+	var value GatewayTelemetry
+	if len(data) > 1024*1024 {
+		return value, errors.New("protocol payload exceeds limit")
+	}
+	var fields map[string]json.RawMessage
+	if err := json.Unmarshal(data, &fields); err != nil {
+		return value, err
+	}
+	if raw, ok := fields["admission_rejects"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "admission_rejects", Code: "required"}}}
+	}
+	if raw, ok := fields["admitted_sessions"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "admitted_sessions", Code: "required"}}}
+	}
+	if raw, ok := fields["control_jitter_micros"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "control_jitter_micros", Code: "required"}}}
+	}
+	if raw, ok := fields["control_loss_ppm"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "control_loss_ppm", Code: "required"}}}
+	}
+	if raw, ok := fields["control_rtt_micros"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "control_rtt_micros", Code: "required"}}}
+	}
+	if raw, ok := fields["drain_transitions"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "drain_transitions", Code: "required"}}}
+	}
+	if raw, ok := fields["input_rejected"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "input_rejected", Code: "required"}}}
+	}
+	if raw, ok := fields["media_bytes"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "media_bytes", Code: "required"}}}
+	}
+	if raw, ok := fields["media_drops"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "media_drops", Code: "required"}}}
+	}
+	if raw, ok := fields["media_packets"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "media_packets", Code: "required"}}}
+	}
+	if raw, ok := fields["pacing_delay_micros"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "pacing_delay_micros", Code: "required"}}}
+	}
+	if raw, ok := fields["pending_reliable"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "pending_reliable", Code: "required"}}}
+	}
+	if raw, ok := fields["processing_delay_micros"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "processing_delay_micros", Code: "required"}}}
+	}
+	if raw, ok := fields["processing_samples"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "processing_samples", Code: "required"}}}
+	}
+	if raw, ok := fields["provider_errors"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "provider_errors", Code: "required"}}}
+	}
+	if raw, ok := fields["provider_state"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "provider_state", Code: "required"}}}
+	}
+	if raw, ok := fields["queue_delay_micros"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "queue_delay_micros", Code: "required"}}}
+	}
+	if raw, ok := fields["reconnects"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "reconnects", Code: "required"}}}
+	}
+	decoder := json.NewDecoder(bytes.NewReader(data))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(&value); err != nil {
+		return value, err
+	}
+	var trailing any
+	if err := decoder.Decode(&trailing); err != io.EOF {
+		if err == nil {
+			return value, errors.New("trailing JSON value")
+		}
+		return value, err
+	}
+	if err := value.Validate(); err != nil {
+		return value, err
+	}
+	return value, nil
+}
+
+func EncodeGatewayTelemetry(value GatewayTelemetry) ([]byte, error) {
+	if err := value.Validate(); err != nil {
+		return nil, err
+	}
+	return json.Marshal(value)
+}
+
 func (v GrantReference) Validate() error {
 	var violations []FieldViolation
 	if v.OpaqueValue == "" {
@@ -3287,6 +3541,12 @@ func (v ProviderSessionWork) Validate() error {
 	if len(v.PolicyVersionID) > 128 {
 		violations = append(violations, FieldViolation{Field: "policy_version_id", Code: "max_length"})
 	}
+	if reflect.DeepEqual(v.StreamPolicy, ProviderStreamPolicy{}) {
+		violations = append(violations, FieldViolation{Field: "stream_policy", Code: "required"})
+	}
+	if err := v.StreamPolicy.Validate(); err != nil {
+		violations = append(violations, FieldViolation{Field: "stream_policy", Code: "invalid_object"})
+	}
 	if v.ApplicationID == "" {
 		violations = append(violations, FieldViolation{Field: "application_id", Code: "required"})
 	}
@@ -3440,6 +3700,9 @@ func DecodeProviderSessionWork(data []byte) (ProviderSessionWork, error) {
 	if raw, ok := fields["stream_host"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
 		return value, ValidationError{Violations: []FieldViolation{{Field: "stream_host", Code: "required"}}}
 	}
+	if raw, ok := fields["stream_policy"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "stream_policy", Code: "required"}}}
+	}
 	if raw, ok := fields["stream_port"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
 		return value, ValidationError{Violations: []FieldViolation{{Field: "stream_port", Code: "required"}}}
 	}
@@ -3555,6 +3818,108 @@ func EncodeProviderState(value ProviderState) ([]byte, error) {
 	return json.Marshal(value)
 }
 
+func (v ProviderStreamPolicy) Validate() error {
+	var violations []FieldViolation
+	if v.ResolutionWidth == 0 {
+		violations = append(violations, FieldViolation{Field: "resolution_width", Code: "required"})
+	}
+	if v.ResolutionWidth != 0 && v.ResolutionWidth < 320 {
+		violations = append(violations, FieldViolation{Field: "resolution_width", Code: "minimum"})
+	}
+	if v.ResolutionWidth > 16384 {
+		violations = append(violations, FieldViolation{Field: "resolution_width", Code: "maximum"})
+	}
+	if v.ResolutionHeight == 0 {
+		violations = append(violations, FieldViolation{Field: "resolution_height", Code: "required"})
+	}
+	if v.ResolutionHeight != 0 && v.ResolutionHeight < 200 {
+		violations = append(violations, FieldViolation{Field: "resolution_height", Code: "minimum"})
+	}
+	if v.ResolutionHeight > 8640 {
+		violations = append(violations, FieldViolation{Field: "resolution_height", Code: "maximum"})
+	}
+	if v.Fps == 0 {
+		violations = append(violations, FieldViolation{Field: "fps", Code: "required"})
+	}
+	if v.Fps != 0 && v.Fps < 1 {
+		violations = append(violations, FieldViolation{Field: "fps", Code: "minimum"})
+	}
+	if v.Fps > 240 {
+		violations = append(violations, FieldViolation{Field: "fps", Code: "maximum"})
+	}
+	if v.Codec == "" {
+		violations = append(violations, FieldViolation{Field: "codec", Code: "required"})
+	}
+	if v.Codec != "" && !(v.Codec == "H264" || v.Codec == "HEVC" || v.Codec == "AV1") {
+		violations = append(violations, FieldViolation{Field: "codec", Code: "invalid_value"})
+	}
+	if v.BitrateKbps == 0 {
+		violations = append(violations, FieldViolation{Field: "bitrate_kbps", Code: "required"})
+	}
+	if v.BitrateKbps != 0 && v.BitrateKbps < 100 {
+		violations = append(violations, FieldViolation{Field: "bitrate_kbps", Code: "minimum"})
+	}
+	if v.BitrateKbps > 1000000 {
+		violations = append(violations, FieldViolation{Field: "bitrate_kbps", Code: "maximum"})
+	}
+	if len(violations) > 0 {
+		return ValidationError{Violations: violations}
+	}
+	return nil
+}
+
+func DecodeProviderStreamPolicy(data []byte) (ProviderStreamPolicy, error) {
+	var value ProviderStreamPolicy
+	if len(data) > 1024*1024 {
+		return value, errors.New("protocol payload exceeds limit")
+	}
+	var fields map[string]json.RawMessage
+	if err := json.Unmarshal(data, &fields); err != nil {
+		return value, err
+	}
+	if raw, ok := fields["audio_enabled"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "audio_enabled", Code: "required"}}}
+	}
+	if raw, ok := fields["bitrate_kbps"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "bitrate_kbps", Code: "required"}}}
+	}
+	if raw, ok := fields["codec"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "codec", Code: "required"}}}
+	}
+	if raw, ok := fields["fps"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "fps", Code: "required"}}}
+	}
+	if raw, ok := fields["resolution_height"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "resolution_height", Code: "required"}}}
+	}
+	if raw, ok := fields["resolution_width"]; !ok || bytes.Equal(bytes.TrimSpace(raw), []byte("null")) {
+		return value, ValidationError{Violations: []FieldViolation{{Field: "resolution_width", Code: "required"}}}
+	}
+	decoder := json.NewDecoder(bytes.NewReader(data))
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(&value); err != nil {
+		return value, err
+	}
+	var trailing any
+	if err := decoder.Decode(&trailing); err != io.EOF {
+		if err == nil {
+			return value, errors.New("trailing JSON value")
+		}
+		return value, err
+	}
+	if err := value.Validate(); err != nil {
+		return value, err
+	}
+	return value, nil
+}
+
+func EncodeProviderStreamPolicy(value ProviderStreamPolicy) ([]byte, error) {
+	if err := value.Validate(); err != nil {
+		return nil, err
+	}
+	return json.Marshal(value)
+}
+
 func (v ReauthGrant) Validate() error {
 	var violations []FieldViolation
 	if v.Token == "" {
@@ -4634,16 +4999,32 @@ func IntersectCapabilityProfiles(profiles ...CapabilityProfile) (CapabilityProfi
 	if err := selected.Validate(); err != nil {
 		return CapabilityProfile{}, ErrNoCapabilityOverlap
 	}
+	common := append([]string(nil), selected.ClientDecode...)
 	for _, profile := range profiles[1:] {
-		if err := profile.Validate(); err != nil || profile != selected {
+		if err := profile.Validate(); err != nil || profile.Transport != selected.Transport || profile.Framing != selected.Framing || profile.Media != selected.Media || profile.Audio != selected.Audio || profile.SourceRateControl != selected.SourceRateControl {
+			return CapabilityProfile{}, ErrNoCapabilityOverlap
+		}
+		next := common[:0]
+		for _, candidate := range common {
+			for _, offered := range profile.ClientDecode {
+				if candidate == offered {
+					next = append(next, candidate)
+					break
+				}
+			}
+		}
+		common = next
+		if len(common) == 0 {
 			return CapabilityProfile{}, ErrNoCapabilityOverlap
 		}
 	}
+	selected.ClientDecode = common
 	return selected, nil
 }
 
 func (v TunnelAdmissionRequest) DeviceAdmissionTranscript() []byte {
-	fields := []string{v.SessionID, v.GatewayID, v.Audience, v.Grant, fmt.Sprintf("%d", v.ReconnectSequence), v.ClientNonce, v.Capabilities.Transport, v.Capabilities.Framing, v.Capabilities.Media, v.Capabilities.Audio, v.Capabilities.SourceRateControl, v.Capabilities.ClientDecode}
+	fields := []string{v.SessionID, v.GatewayID, v.Audience, v.Grant, fmt.Sprintf("%d", v.ReconnectSequence), v.ClientNonce, v.Capabilities.Transport, v.Capabilities.Framing, v.Capabilities.Media, v.Capabilities.Audio, v.Capabilities.SourceRateControl, fmt.Sprintf("%d", len(v.Capabilities.ClientDecode))}
+	fields = append(fields, v.Capabilities.ClientDecode...)
 	var transcript strings.Builder
 	transcript.WriteString("versevdi/tunnel-admission/v1")
 	for _, field := range fields {

gen/manifest.json

@@ -12,7 +12,7 @@
       "2"
     ]
   },
-  "generator_sha256": "922983e07a8ecc559771778fbf139155b14664742d9873be062880102777dccb",
+  "generator_sha256": "00fdba050eb924a54dd3d63aac0a38560341b675f0de4e3e9631ee895057a9b6",
   "protocol_version": "1.0.0",
-  "schema_sha256": "e98c75ef81bbeac6be2b8f11202c1ffecec0aa515b48576a26756290e99d5dd8"
+  "schema_sha256": "a86cbdaf2cfb884e3d98467968007e731ca55c6f6eb6dbd5cd6b95e062a9b058"
 }

gen/rust/protocol.rs

@@ -1,6 +1,6 @@
 // Code generated by tools/generate.py; DO NOT EDIT.
 #![allow(non_snake_case)]
-pub const SCHEMA_SHA256: &str = "e98c75ef81bbeac6be2b8f11202c1ffecec0aa515b48576a26756290e99d5dd8";
+pub const SCHEMA_SHA256: &str = "a86cbdaf2cfb884e3d98467968007e731ca55c6f6eb6dbd5cd6b95e062a9b058";
 pub const CURRENT_WIRE_VERSION: &str = "1";
 pub const N_MINUS_1_WIRE_VERSION: &str = "0";
 pub const N_MINUS_2_WIRE_VERSION: &str = "-1";
@@ -210,11 +210,11 @@ pub struct CapabilityProfile {
     media: String,
     audio: String,
     sourceRateControl: String,
-    clientDecode: String,
+    clientDecode: Vec<String>,
 }
 
 impl CapabilityProfile {
-    pub fn new(transport: String, framing: String, media: String, audio: String, sourceRateControl: String, clientDecode: String) -> Result<Self, ValidationError> {
+    pub fn new(transport: String, framing: String, media: String, audio: String, sourceRateControl: String, clientDecode: Vec<String>) -> Result<Self, ValidationError> {
         let value = Self { transport, framing, media, audio, sourceRateControl, clientDecode };
         value.validate()?;
         Ok(value)
@@ -223,9 +223,7 @@ impl CapabilityProfile {
         if self.transport.is_empty() { return Err(ValidationError::new("transport", "required")); }
         if !self.transport.is_empty() && self.transport.len() < 1 { return Err(ValidationError::new("transport", "min_length")); }
         if self.transport.len() > 64 { return Err(ValidationError::new("transport", "max_length")); }
-        if self.framing.is_empty() { return Err(ValidationError::new("framing", "required")); }
+        if self.framing != "datagram-v1" && self.framing != "datagram-v2" { return Err(ValidationError::new("framing", "invalid_value")); }
-        if !self.framing.is_empty() && self.framing.len() < 1 { return Err(ValidationError::new("framing", "min_length")); }
-        if self.framing.len() > 64 { return Err(ValidationError::new("framing", "max_length")); }
         if self.media.is_empty() { return Err(ValidationError::new("media", "required")); }
         if !self.media.is_empty() && self.media.len() < 1 { return Err(ValidationError::new("media", "min_length")); }
         if self.media.len() > 64 { return Err(ValidationError::new("media", "max_length")); }
@@ -235,9 +233,10 @@ impl CapabilityProfile {
         if self.sourceRateControl.is_empty() { return Err(ValidationError::new("source_rate_control", "required")); }
         if !self.sourceRateControl.is_empty() && self.sourceRateControl.len() < 1 { return Err(ValidationError::new("source_rate_control", "min_length")); }
         if self.sourceRateControl.len() > 64 { return Err(ValidationError::new("source_rate_control", "max_length")); }
-        if self.clientDecode.is_empty() { return Err(ValidationError::new("client_decode", "required")); }
+        if self.clientDecode.len() < 1 { return Err(ValidationError::new("client_decode", "min_items")); }
-        if !self.clientDecode.is_empty() && self.clientDecode.len() < 1 { return Err(ValidationError::new("client_decode", "min_length")); }
+        if self.clientDecode.len() > 2 { return Err(ValidationError::new("client_decode", "max_items")); }
-        if self.clientDecode.len() > 64 { return Err(ValidationError::new("client_decode", "max_length")); }
+        for item in self.clientDecode.iter() { if item != "h264-opus" && item != "hevc-opus" { return Err(ValidationError::new("client_decode", "invalid_item")); } }
+        for (index, item) in self.clientDecode.iter().enumerate() { if self.clientDecode[..index].contains(item) { return Err(ValidationError::new("client_decode", "duplicate_item")); } }
         Ok(())
     }
     pub fn transport(&self) -> &String { &self.transport }
@@ -245,7 +244,7 @@ impl CapabilityProfile {
     pub fn media(&self) -> &String { &self.media }
     pub fn audio(&self) -> &String { &self.audio }
     pub fn sourceRateControl(&self) -> &String { &self.sourceRateControl }
-    pub fn clientDecode(&self) -> &String { &self.clientDecode }
+    pub fn clientDecode(&self) -> &Vec<String> { &self.clientDecode }
 }
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -771,11 +770,12 @@ pub struct GatewayHeartbeat {
     activeConnections: i64,
     egressKbps: i64,
     state: String,
+    telemetry: GatewayTelemetry,
 }
 
 impl GatewayHeartbeat {
-    pub fn new(version: String, gatewayId: String, sequence: i64, observedAt: String, activeConnections: i64, egressKbps: i64, state: String) -> Result<Self, ValidationError> {
+    pub fn new(version: String, gatewayId: String, sequence: i64, observedAt: String, activeConnections: i64, egressKbps: i64, state: String, telemetry: GatewayTelemetry) -> Result<Self, ValidationError> {
-        let value = Self { version, gatewayId, sequence, observedAt, activeConnections, egressKbps, state };
+        let value = Self { version, gatewayId, sequence, observedAt, activeConnections, egressKbps, state, telemetry };
         value.validate()?;
         Ok(value)
     }
@@ -791,6 +791,7 @@ impl GatewayHeartbeat {
         if self.egressKbps < 0 { return Err(ValidationError::new("egress_kbps", "minimum")); }
         if self.egressKbps > 1000000000 { return Err(ValidationError::new("egress_kbps", "maximum")); }
         if self.state != "ready" && self.state != "draining" && self.state != "offline" { return Err(ValidationError::new("state", "invalid_value")); }
+        self.telemetry.validate().map_err(|_| ValidationError::new("telemetry", "invalid_object"))?;
         Ok(())
     }
     pub fn version(&self) -> &String { &self.version }
@@ -800,6 +801,7 @@ impl GatewayHeartbeat {
     pub fn activeConnections(&self) -> &i64 { &self.activeConnections }
     pub fn egressKbps(&self) -> &i64 { &self.egressKbps }
     pub fn state(&self) -> &String { &self.state }
+    pub fn telemetry(&self) -> &GatewayTelemetry { &self.telemetry }
 }
 
 #[derive(Debug, Clone, PartialEq, Eq)]
@@ -873,6 +875,92 @@ impl GatewayRegistration {
     pub fn capabilities(&self) -> &CapabilityProfile { &self.capabilities }
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct GatewayTelemetry {
+    admittedSessions: i64,
+    admissionRejects: i64,
+    reconnects: i64,
+    drainTransitions: i64,
+    mediaDrops: i64,
+    mediaPackets: i64,
+    mediaBytes: i64,
+    queueDelayMicros: i64,
+    processingDelayMicros: i64,
+    processingSamples: i64,
+    pacingDelayMicros: i64,
+    providerErrors: i64,
+    inputRejected: i64,
+    controlRttMicros: i64,
+    controlJitterMicros: i64,
+    controlLossPpm: i64,
+    pendingReliable: i64,
+    providerState: String,
+}
+
+impl GatewayTelemetry {
+    pub fn new(admittedSessions: i64, admissionRejects: i64, reconnects: i64, drainTransitions: i64, mediaDrops: i64, mediaPackets: i64, mediaBytes: i64, queueDelayMicros: i64, processingDelayMicros: i64, processingSamples: i64, pacingDelayMicros: i64, providerErrors: i64, inputRejected: i64, controlRttMicros: i64, controlJitterMicros: i64, controlLossPpm: i64, pendingReliable: i64, providerState: String) -> Result<Self, ValidationError> {
+        let value = Self { admittedSessions, admissionRejects, reconnects, drainTransitions, mediaDrops, mediaPackets, mediaBytes, queueDelayMicros, processingDelayMicros, processingSamples, pacingDelayMicros, providerErrors, inputRejected, controlRttMicros, controlJitterMicros, controlLossPpm, pendingReliable, providerState };
+        value.validate()?;
+        Ok(value)
+    }
+    pub fn validate(&self) -> Result<(), ValidationError> {
+        if self.admittedSessions < 0 { return Err(ValidationError::new("admitted_sessions", "minimum")); }
+        if self.admittedSessions > 9223372036854775807 { return Err(ValidationError::new("admitted_sessions", "maximum")); }
+        if self.admissionRejects < 0 { return Err(ValidationError::new("admission_rejects", "minimum")); }
+        if self.admissionRejects > 9223372036854775807 { return Err(ValidationError::new("admission_rejects", "maximum")); }
+        if self.reconnects < 0 { return Err(ValidationError::new("reconnects", "minimum")); }
+        if self.reconnects > 9223372036854775807 { return Err(ValidationError::new("reconnects", "maximum")); }
+        if self.drainTransitions < 0 { return Err(ValidationError::new("drain_transitions", "minimum")); }
+        if self.drainTransitions > 9223372036854775807 { return Err(ValidationError::new("drain_transitions", "maximum")); }
+        if self.mediaDrops < 0 { return Err(ValidationError::new("media_drops", "minimum")); }
+        if self.mediaDrops > 9223372036854775807 { return Err(ValidationError::new("media_drops", "maximum")); }
+        if self.mediaPackets < 0 { return Err(ValidationError::new("media_packets", "minimum")); }
+        if self.mediaPackets > 9223372036854775807 { return Err(ValidationError::new("media_packets", "maximum")); }
+        if self.mediaBytes < 0 { return Err(ValidationError::new("media_bytes", "minimum")); }
+        if self.mediaBytes > 9223372036854775807 { return Err(ValidationError::new("media_bytes", "maximum")); }
+        if self.queueDelayMicros < 0 { return Err(ValidationError::new("queue_delay_micros", "minimum")); }
+        if self.queueDelayMicros > 9223372036854775807 { return Err(ValidationError::new("queue_delay_micros", "maximum")); }
+        if self.processingDelayMicros < 0 { return Err(ValidationError::new("processing_delay_micros", "minimum")); }
+        if self.processingDelayMicros > 9223372036854775807 { return Err(ValidationError::new("processing_delay_micros", "maximum")); }
+        if self.processingSamples < 0 { return Err(ValidationError::new("processing_samples", "minimum")); }
+        if self.processingSamples > 9223372036854775807 { return Err(ValidationError::new("processing_samples", "maximum")); }
+        if self.pacingDelayMicros < 0 { return Err(ValidationError::new("pacing_delay_micros", "minimum")); }
+        if self.pacingDelayMicros > 9223372036854775807 { return Err(ValidationError::new("pacing_delay_micros", "maximum")); }
+        if self.providerErrors < 0 { return Err(ValidationError::new("provider_errors", "minimum")); }
+        if self.providerErrors > 9223372036854775807 { return Err(ValidationError::new("provider_errors", "maximum")); }
+        if self.inputRejected < 0 { return Err(ValidationError::new("input_rejected", "minimum")); }
+        if self.inputRejected > 9223372036854775807 { return Err(ValidationError::new("input_rejected", "maximum")); }
+        if self.controlRttMicros < 0 { return Err(ValidationError::new("control_rtt_micros", "minimum")); }
+        if self.controlRttMicros > 9223372036854775807 { return Err(ValidationError::new("control_rtt_micros", "maximum")); }
+        if self.controlJitterMicros < 0 { return Err(ValidationError::new("control_jitter_micros", "minimum")); }
+        if self.controlJitterMicros > 9223372036854775807 { return Err(ValidationError::new("control_jitter_micros", "maximum")); }
+        if self.controlLossPpm < 0 { return Err(ValidationError::new("control_loss_ppm", "minimum")); }
+        if self.controlLossPpm > 1000000 { return Err(ValidationError::new("control_loss_ppm", "maximum")); }
+        if self.pendingReliable < 0 { return Err(ValidationError::new("pending_reliable", "minimum")); }
+        if self.pendingReliable > 9223372036854775807 { return Err(ValidationError::new("pending_reliable", "maximum")); }
+        if self.providerState != "unknown" && self.providerState != "starting" && self.providerState != "ready" && self.providerState != "disconnected" && self.providerState != "terminating" && self.providerState != "terminated" && self.providerState != "cleanup_pending" && self.providerState != "failed" { return Err(ValidationError::new("provider_state", "invalid_value")); }
+        Ok(())
+    }
+    pub fn admittedSessions(&self) -> &i64 { &self.admittedSessions }
+    pub fn admissionRejects(&self) -> &i64 { &self.admissionRejects }
+    pub fn reconnects(&self) -> &i64 { &self.reconnects }
+    pub fn drainTransitions(&self) -> &i64 { &self.drainTransitions }
+    pub fn mediaDrops(&self) -> &i64 { &self.mediaDrops }
+    pub fn mediaPackets(&self) -> &i64 { &self.mediaPackets }
+    pub fn mediaBytes(&self) -> &i64 { &self.mediaBytes }
+    pub fn queueDelayMicros(&self) -> &i64 { &self.queueDelayMicros }
+    pub fn processingDelayMicros(&self) -> &i64 { &self.processingDelayMicros }
+    pub fn processingSamples(&self) -> &i64 { &self.processingSamples }
+    pub fn pacingDelayMicros(&self) -> &i64 { &self.pacingDelayMicros }
+    pub fn providerErrors(&self) -> &i64 { &self.providerErrors }
+    pub fn inputRejected(&self) -> &i64 { &self.inputRejected }
+    pub fn controlRttMicros(&self) -> &i64 { &self.controlRttMicros }
+    pub fn controlJitterMicros(&self) -> &i64 { &self.controlJitterMicros }
+    pub fn controlLossPpm(&self) -> &i64 { &self.controlLossPpm }
+    pub fn pendingReliable(&self) -> &i64 { &self.pendingReliable }
+    pub fn providerState(&self) -> &String { &self.providerState }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct GrantReference {
     opaqueValue: String,
@@ -1108,6 +1196,7 @@ pub struct ProviderSessionWork {
     providerProfile: String,
     providerIdentity: String,
     policyVersionId: String,
+    streamPolicy: ProviderStreamPolicy,
     applicationId: String,
     clientId: String,
     managementHost: String,
@@ -1122,8 +1211,8 @@ pub struct ProviderSessionWork {
 }
 
 impl ProviderSessionWork {
-    pub fn new(version: String, sessionId: String, gatewayId: String, reconnectSequence: i64, expiresAt: String, providerProfile: String, providerIdentity: String, policyVersionId: String, applicationId: String, clientId: String, managementHost: String, managementPort: i64, streamHost: String, streamPort: i64, clientCertificatePem: String, clientPrivateKeyPem: String, serverCertificatePem: String, clipboardPolicy: ClipboardPolicy, providerApplicationTerminationAllowed: bool) -> Result<Self, ValidationError> {
+    pub fn new(version: String, sessionId: String, gatewayId: String, reconnectSequence: i64, expiresAt: String, providerProfile: String, providerIdentity: String, policyVersionId: String, streamPolicy: ProviderStreamPolicy, applicationId: String, clientId: String, managementHost: String, managementPort: i64, streamHost: String, streamPort: i64, clientCertificatePem: String, clientPrivateKeyPem: String, serverCertificatePem: String, clipboardPolicy: ClipboardPolicy, providerApplicationTerminationAllowed: bool) -> Result<Self, ValidationError> {
-        let value = Self { version, sessionId, gatewayId, reconnectSequence, expiresAt, providerProfile, providerIdentity, policyVersionId, applicationId, clientId, managementHost, managementPort, streamHost, streamPort, clientCertificatePem, clientPrivateKeyPem, serverCertificatePem, clipboardPolicy, providerApplicationTerminationAllowed };
+        let value = Self { version, sessionId, gatewayId, reconnectSequence, expiresAt, providerProfile, providerIdentity, policyVersionId, streamPolicy, applicationId, clientId, managementHost, managementPort, streamHost, streamPort, clientCertificatePem, clientPrivateKeyPem, serverCertificatePem, clipboardPolicy, providerApplicationTerminationAllowed };
         value.validate()?;
         Ok(value)
     }
@@ -1144,6 +1233,7 @@ impl ProviderSessionWork {
         if self.policyVersionId.is_empty() { return Err(ValidationError::new("policy_version_id", "required")); }
         if !self.policyVersionId.is_empty() && self.policyVersionId.len() < 1 { return Err(ValidationError::new("policy_version_id", "min_length")); }
         if self.policyVersionId.len() > 128 { return Err(ValidationError::new("policy_version_id", "max_length")); }
+        self.streamPolicy.validate().map_err(|_| ValidationError::new("stream_policy", "invalid_object"))?;
         if self.applicationId.is_empty() { return Err(ValidationError::new("application_id", "required")); }
         if !self.applicationId.is_empty() && self.applicationId.len() < 1 { return Err(ValidationError::new("application_id", "min_length")); }
         if self.applicationId.len() > 128 { return Err(ValidationError::new("application_id", "max_length")); }
@@ -1180,6 +1270,7 @@ impl ProviderSessionWork {
     pub fn providerProfile(&self) -> &String { &self.providerProfile }
     pub fn providerIdentity(&self) -> &String { &self.providerIdentity }
     pub fn policyVersionId(&self) -> &String { &self.policyVersionId }
+    pub fn streamPolicy(&self) -> &ProviderStreamPolicy { &self.streamPolicy }
     pub fn applicationId(&self) -> &String { &self.applicationId }
     pub fn clientId(&self) -> &String { &self.clientId }
     pub fn managementHost(&self) -> &String { &self.managementHost }
@@ -1224,6 +1315,42 @@ impl ProviderState {
     pub fn channels(&self) -> &Vec<String> { &self.channels }
 }
 
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct ProviderStreamPolicy {
+    resolutionWidth: i64,
+    resolutionHeight: i64,
+    fps: i64,
+    codec: String,
+    bitrateKbps: i64,
+    audioEnabled: bool,
+}
+
+impl ProviderStreamPolicy {
+    pub fn new(resolutionWidth: i64, resolutionHeight: i64, fps: i64, codec: String, bitrateKbps: i64, audioEnabled: bool) -> Result<Self, ValidationError> {
+        let value = Self { resolutionWidth, resolutionHeight, fps, codec, bitrateKbps, audioEnabled };
+        value.validate()?;
+        Ok(value)
+    }
+    pub fn validate(&self) -> Result<(), ValidationError> {
+        if self.resolutionWidth < 320 { return Err(ValidationError::new("resolution_width", "minimum")); }
+        if self.resolutionWidth > 16384 { return Err(ValidationError::new("resolution_width", "maximum")); }
+        if self.resolutionHeight < 200 { return Err(ValidationError::new("resolution_height", "minimum")); }
+        if self.resolutionHeight > 8640 { return Err(ValidationError::new("resolution_height", "maximum")); }
+        if self.fps < 1 { return Err(ValidationError::new("fps", "minimum")); }
+        if self.fps > 240 { return Err(ValidationError::new("fps", "maximum")); }
+        if self.codec != "H264" && self.codec != "HEVC" && self.codec != "AV1" { return Err(ValidationError::new("codec", "invalid_value")); }
+        if self.bitrateKbps < 100 { return Err(ValidationError::new("bitrate_kbps", "minimum")); }
+        if self.bitrateKbps > 1000000 { return Err(ValidationError::new("bitrate_kbps", "maximum")); }
+        Ok(())
+    }
+    pub fn resolutionWidth(&self) -> &i64 { &self.resolutionWidth }
+    pub fn resolutionHeight(&self) -> &i64 { &self.resolutionHeight }
+    pub fn fps(&self) -> &i64 { &self.fps }
+    pub fn codec(&self) -> &String { &self.codec }
+    pub fn bitrateKbps(&self) -> &i64 { &self.bitrateKbps }
+    pub fn audioEnabled(&self) -> &bool { &self.audioEnabled }
+}
+
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct ReauthGrant {
     token: String,
@@ -1601,7 +1728,9 @@ impl TunnelAdmissionRequest {
     pub fn capabilities(&self) -> &CapabilityProfile { &self.capabilities }
     pub fn device_admission_transcript(&self) -> Vec<u8> {
         let reconnect_sequence = self.reconnectSequence.to_string();
-        let fields = [&self.sessionId, &self.gatewayId, &self.audience, &self.grant, &reconnect_sequence, &self.clientNonce, &self.capabilities.transport, &self.capabilities.framing, &self.capabilities.media, &self.capabilities.audio, &self.capabilities.sourceRateControl, &self.capabilities.clientDecode];
+        let client_decode_count = self.capabilities.clientDecode.len().to_string();
+        let mut fields = vec![self.sessionId.as_str(), self.gatewayId.as_str(), self.audience.as_str(), self.grant.as_str(), reconnect_sequence.as_str(), self.clientNonce.as_str(), self.capabilities.transport.as_str(), self.capabilities.framing.as_str(), self.capabilities.media.as_str(), self.capabilities.audio.as_str(), self.capabilities.sourceRateControl.as_str(), client_decode_count.as_str()];
+        fields.extend(self.capabilities.clientDecode.iter().map(String::as_str));
         let mut transcript = String::from("versevdi/tunnel-admission/v1");
         for field in fields { transcript.push_str(&format!("{}:{}", field.as_bytes().len(), field)); }
         transcript.into_bytes()
@@ -1631,11 +1760,13 @@ impl VersionNegotiation {
 }
 
 pub fn intersect_capability_profiles(profiles: &[CapabilityProfile]) -> Result<CapabilityProfile, ValidationError> {
-    let selected = profiles.first().ok_or_else(|| ValidationError::new("capabilities", "no_overlap"))?.clone();
+    let mut selected = profiles.first().ok_or_else(|| ValidationError::new("capabilities", "no_overlap"))?.clone();
     selected.validate().map_err(|_| ValidationError::new("capabilities", "no_overlap"))?;
     for profile in &profiles[1..] {
         profile.validate().map_err(|_| ValidationError::new("capabilities", "no_overlap"))?;
-        if profile != &selected { return Err(ValidationError::new("capabilities", "no_overlap")); }
+        if profile.transport != selected.transport || profile.framing != selected.framing || profile.media != selected.media || profile.audio != selected.audio || profile.sourceRateControl != selected.sourceRateControl { return Err(ValidationError::new("capabilities", "no_overlap")); }
+        selected.clientDecode.retain(|candidate| profile.clientDecode.contains(candidate));
+        if selected.clientDecode.is_empty() { return Err(ValidationError::new("capabilities", "no_overlap")); }
     }
     Ok(selected)
 }

gen/swift/Protocol.swift

@@ -1,7 +1,7 @@
 // Code generated by tools/generate.py; DO NOT EDIT.
 import Foundation
 public typealias JSONObject = [String: String]
-public let schemaSHA256 = "e98c75ef81bbeac6be2b8f11202c1ffecec0aa515b48576a26756290e99d5dd8"
+public let schemaSHA256 = "a86cbdaf2cfb884e3d98467968007e731ca55c6f6eb6dbd5cd6b95e062a9b058"
 public let currentWireVersion = "1"
 public let nMinus1WireVersion = "0"
 public let nMinus2WireVersion = "-1"
@@ -247,7 +247,7 @@ public struct CapabilityProfile: Codable, Equatable {
     public let media: String
     public let audio: String
     public let sourceRateControl: String
-    public let clientDecode: String
+    public let clientDecode: [String]
     enum CodingKeys: String, CodingKey {
         case transport = "transport"
         case framing = "framing"
@@ -257,7 +257,7 @@ public struct CapabilityProfile: Codable, Equatable {
         case clientDecode = "client_decode"
     }
 
-    public init(transport: String, framing: String, media: String, audio: String, sourceRateControl: String, clientDecode: String) throws {
+    public init(transport: String, framing: String, media: String, audio: String, sourceRateControl: String, clientDecode: [String]) throws {
         self.transport = transport
         self.framing = framing
         self.media = media
@@ -271,16 +271,14 @@ public struct CapabilityProfile: Codable, Equatable {
         let all = try decoder.container(keyedBy: AnyCodingKey.self)
         for key in all.allKeys where CodingKeys(stringValue: key.stringValue) == nil { throw ContractValidationError(field: key.stringValue, code: "unknown_field") }
         let c = try decoder.container(keyedBy: CodingKeys.self)
-        try self.init(transport: try c.decode(String.self, forKey: .transport), framing: try c.decode(String.self, forKey: .framing), media: try c.decode(String.self, forKey: .media), audio: try c.decode(String.self, forKey: .audio), sourceRateControl: try c.decode(String.self, forKey: .sourceRateControl), clientDecode: try c.decode(String.self, forKey: .clientDecode))
+        try self.init(transport: try c.decode(String.self, forKey: .transport), framing: try c.decode(String.self, forKey: .framing), media: try c.decode(String.self, forKey: .media), audio: try c.decode(String.self, forKey: .audio), sourceRateControl: try c.decode(String.self, forKey: .sourceRateControl), clientDecode: try c.decode([String].self, forKey: .clientDecode))
     }
 
     public func validate() throws {
         if self.transport.isEmpty { throw ContractValidationError(field: "transport", code: "required") }
         if !self.transport.isEmpty && self.transport.utf8.count < 1 { throw ContractValidationError(field: "transport", code: "min_length") }
         if self.transport.utf8.count > 64 { throw ContractValidationError(field: "transport", code: "max_length") }
-        if self.framing.isEmpty { throw ContractValidationError(field: "framing", code: "required") }
+        if !["datagram-v1", "datagram-v2"].contains(self.framing) { throw ContractValidationError(field: "framing", code: "invalid_value") }
-        if !self.framing.isEmpty && self.framing.utf8.count < 1 { throw ContractValidationError(field: "framing", code: "min_length") }
-        if self.framing.utf8.count > 64 { throw ContractValidationError(field: "framing", code: "max_length") }
         if self.media.isEmpty { throw ContractValidationError(field: "media", code: "required") }
         if !self.media.isEmpty && self.media.utf8.count < 1 { throw ContractValidationError(field: "media", code: "min_length") }
         if self.media.utf8.count > 64 { throw ContractValidationError(field: "media", code: "max_length") }
@@ -290,9 +288,10 @@ public struct CapabilityProfile: Codable, Equatable {
         if self.sourceRateControl.isEmpty { throw ContractValidationError(field: "source_rate_control", code: "required") }
         if !self.sourceRateControl.isEmpty && self.sourceRateControl.utf8.count < 1 { throw ContractValidationError(field: "source_rate_control", code: "min_length") }
         if self.sourceRateControl.utf8.count > 64 { throw ContractValidationError(field: "source_rate_control", code: "max_length") }
-        if self.clientDecode.isEmpty { throw ContractValidationError(field: "client_decode", code: "required") }
+        if self.clientDecode.count < 1 { throw ContractValidationError(field: "client_decode", code: "min_items") }
-        if !self.clientDecode.isEmpty && self.clientDecode.utf8.count < 1 { throw ContractValidationError(field: "client_decode", code: "min_length") }
+        if self.clientDecode.count > 2 { throw ContractValidationError(field: "client_decode", code: "max_items") }
-        if self.clientDecode.utf8.count > 64 { throw ContractValidationError(field: "client_decode", code: "max_length") }
+        for item in self.clientDecode where !["h264-opus", "hevc-opus"].contains(item) { throw ContractValidationError(field: "client_decode", code: "invalid_item") }
+        if Set(self.clientDecode).count != self.clientDecode.count { throw ContractValidationError(field: "client_decode", code: "duplicate_item") }
     }
 
     public static func decodeJSON(_ data: Data) throws -> Self { try JSONDecoder().decode(Self.self, from: data) }
@@ -1003,6 +1002,7 @@ public struct GatewayHeartbeat: Codable, Equatable {
     public let activeConnections: Int64
     public let egressKbps: Int64
     public let state: String
+    public let telemetry: GatewayTelemetry
     enum CodingKeys: String, CodingKey {
         case version = "version"
         case gatewayId = "gateway_id"
@@ -1011,9 +1011,10 @@ public struct GatewayHeartbeat: Codable, Equatable {
         case activeConnections = "active_connections"
         case egressKbps = "egress_kbps"
         case state = "state"
+        case telemetry = "telemetry"
     }
 
-    public init(version: String, gatewayId: String, sequence: Int64, observedAt: String, activeConnections: Int64, egressKbps: Int64, state: String) throws {
+    public init(version: String, gatewayId: String, sequence: Int64, observedAt: String, activeConnections: Int64, egressKbps: Int64, state: String, telemetry: GatewayTelemetry) throws {
         self.version = version
         self.gatewayId = gatewayId
         self.sequence = sequence
@@ -1021,6 +1022,7 @@ public struct GatewayHeartbeat: Codable, Equatable {
         self.activeConnections = activeConnections
         self.egressKbps = egressKbps
         self.state = state
+        self.telemetry = telemetry
         try validate()
     }
 
@@ -1028,7 +1030,7 @@ public struct GatewayHeartbeat: Codable, Equatable {
         let all = try decoder.container(keyedBy: AnyCodingKey.self)
         for key in all.allKeys where CodingKeys(stringValue: key.stringValue) == nil { throw ContractValidationError(field: key.stringValue, code: "unknown_field") }
         let c = try decoder.container(keyedBy: CodingKeys.self)
-        try self.init(version: try c.decode(String.self, forKey: .version), gatewayId: try c.decode(String.self, forKey: .gatewayId), sequence: try c.decode(Int64.self, forKey: .sequence), observedAt: try c.decode(String.self, forKey: .observedAt), activeConnections: try c.decode(Int64.self, forKey: .activeConnections), egressKbps: try c.decode(Int64.self, forKey: .egressKbps), state: try c.decode(String.self, forKey: .state))
+        try self.init(version: try c.decode(String.self, forKey: .version), gatewayId: try c.decode(String.self, forKey: .gatewayId), sequence: try c.decode(Int64.self, forKey: .sequence), observedAt: try c.decode(String.self, forKey: .observedAt), activeConnections: try c.decode(Int64.self, forKey: .activeConnections), egressKbps: try c.decode(Int64.self, forKey: .egressKbps), state: try c.decode(String.self, forKey: .state), telemetry: try c.decode(GatewayTelemetry.self, forKey: .telemetry))
     }
 
     public func validate() throws {
@@ -1044,6 +1046,7 @@ public struct GatewayHeartbeat: Codable, Equatable {
         if self.egressKbps < 0 { throw ContractValidationError(field: "egress_kbps", code: "minimum") }
         if self.egressKbps > 1000000000 { throw ContractValidationError(field: "egress_kbps", code: "maximum") }
         if !["ready", "draining", "offline"].contains(self.state) { throw ContractValidationError(field: "state", code: "invalid_value") }
+        try self.telemetry.validate()
     }
 
     public static func decodeJSON(_ data: Data) throws -> Self { try JSONDecoder().decode(Self.self, from: data) }
@@ -1141,6 +1144,117 @@ public struct GatewayRegistration: Codable, Equatable {
     public func encodeJSON() throws -> Data { try validate(); return try JSONEncoder().encode(self) }
 }
 
+public struct GatewayTelemetry: Codable, Equatable {
+    public let admittedSessions: Int64
+    public let admissionRejects: Int64
+    public let reconnects: Int64
+    public let drainTransitions: Int64
+    public let mediaDrops: Int64
+    public let mediaPackets: Int64
+    public let mediaBytes: Int64
+    public let queueDelayMicros: Int64
+    public let processingDelayMicros: Int64
+    public let processingSamples: Int64
+    public let pacingDelayMicros: Int64
+    public let providerErrors: Int64
+    public let inputRejected: Int64
+    public let controlRttMicros: Int64
+    public let controlJitterMicros: Int64
+    public let controlLossPpm: Int64
+    public let pendingReliable: Int64
+    public let providerState: String
+    enum CodingKeys: String, CodingKey {
+        case admittedSessions = "admitted_sessions"
+        case admissionRejects = "admission_rejects"
+        case reconnects = "reconnects"
+        case drainTransitions = "drain_transitions"
+        case mediaDrops = "media_drops"
+        case mediaPackets = "media_packets"
+        case mediaBytes = "media_bytes"
+        case queueDelayMicros = "queue_delay_micros"
+        case processingDelayMicros = "processing_delay_micros"
+        case processingSamples = "processing_samples"
+        case pacingDelayMicros = "pacing_delay_micros"
+        case providerErrors = "provider_errors"
+        case inputRejected = "input_rejected"
+        case controlRttMicros = "control_rtt_micros"
+        case controlJitterMicros = "control_jitter_micros"
+        case controlLossPpm = "control_loss_ppm"
+        case pendingReliable = "pending_reliable"
+        case providerState = "provider_state"
+    }
+
+    public init(admittedSessions: Int64, admissionRejects: Int64, reconnects: Int64, drainTransitions: Int64, mediaDrops: Int64, mediaPackets: Int64, mediaBytes: Int64, queueDelayMicros: Int64, processingDelayMicros: Int64, processingSamples: Int64, pacingDelayMicros: Int64, providerErrors: Int64, inputRejected: Int64, controlRttMicros: Int64, controlJitterMicros: Int64, controlLossPpm: Int64, pendingReliable: Int64, providerState: String) throws {
+        self.admittedSessions = admittedSessions
+        self.admissionRejects = admissionRejects
+        self.reconnects = reconnects
+        self.drainTransitions = drainTransitions
+        self.mediaDrops = mediaDrops
+        self.mediaPackets = mediaPackets
+        self.mediaBytes = mediaBytes
+        self.queueDelayMicros = queueDelayMicros
+        self.processingDelayMicros = processingDelayMicros
+        self.processingSamples = processingSamples
+        self.pacingDelayMicros = pacingDelayMicros
+        self.providerErrors = providerErrors
+        self.inputRejected = inputRejected
+        self.controlRttMicros = controlRttMicros
+        self.controlJitterMicros = controlJitterMicros
+        self.controlLossPpm = controlLossPpm
+        self.pendingReliable = pendingReliable
+        self.providerState = providerState
+        try validate()
+    }
+
+    public init(from decoder: Decoder) throws {
+        let all = try decoder.container(keyedBy: AnyCodingKey.self)
+        for key in all.allKeys where CodingKeys(stringValue: key.stringValue) == nil { throw ContractValidationError(field: key.stringValue, code: "unknown_field") }
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        try self.init(admittedSessions: try c.decode(Int64.self, forKey: .admittedSessions), admissionRejects: try c.decode(Int64.self, forKey: .admissionRejects), reconnects: try c.decode(Int64.self, forKey: .reconnects), drainTransitions: try c.decode(Int64.self, forKey: .drainTransitions), mediaDrops: try c.decode(Int64.self, forKey: .mediaDrops), mediaPackets: try c.decode(Int64.self, forKey: .mediaPackets), mediaBytes: try c.decode(Int64.self, forKey: .mediaBytes), queueDelayMicros: try c.decode(Int64.self, forKey: .queueDelayMicros), processingDelayMicros: try c.decode(Int64.self, forKey: .processingDelayMicros), processingSamples: try c.decode(Int64.self, forKey: .processingSamples), pacingDelayMicros: try c.decode(Int64.self, forKey: .pacingDelayMicros), providerErrors: try c.decode(Int64.self, forKey: .providerErrors), inputRejected: try c.decode(Int64.self, forKey: .inputRejected), controlRttMicros: try c.decode(Int64.self, forKey: .controlRttMicros), controlJitterMicros: try c.decode(Int64.self, forKey: .controlJitterMicros), controlLossPpm: try c.decode(Int64.self, forKey: .controlLossPpm), pendingReliable: try c.decode(Int64.self, forKey: .pendingReliable), providerState: try c.decode(String.self, forKey: .providerState))
+    }
+
+    public func validate() throws {
+        if self.admittedSessions < 0 { throw ContractValidationError(field: "admitted_sessions", code: "minimum") }
+        if self.admittedSessions > 9223372036854775807 { throw ContractValidationError(field: "admitted_sessions", code: "maximum") }
+        if self.admissionRejects < 0 { throw ContractValidationError(field: "admission_rejects", code: "minimum") }
+        if self.admissionRejects > 9223372036854775807 { throw ContractValidationError(field: "admission_rejects", code: "maximum") }
+        if self.reconnects < 0 { throw ContractValidationError(field: "reconnects", code: "minimum") }
+        if self.reconnects > 9223372036854775807 { throw ContractValidationError(field: "reconnects", code: "maximum") }
+        if self.drainTransitions < 0 { throw ContractValidationError(field: "drain_transitions", code: "minimum") }
+        if self.drainTransitions > 9223372036854775807 { throw ContractValidationError(field: "drain_transitions", code: "maximum") }
+        if self.mediaDrops < 0 { throw ContractValidationError(field: "media_drops", code: "minimum") }
+        if self.mediaDrops > 9223372036854775807 { throw ContractValidationError(field: "media_drops", code: "maximum") }
+        if self.mediaPackets < 0 { throw ContractValidationError(field: "media_packets", code: "minimum") }
+        if self.mediaPackets > 9223372036854775807 { throw ContractValidationError(field: "media_packets", code: "maximum") }
+        if self.mediaBytes < 0 { throw ContractValidationError(field: "media_bytes", code: "minimum") }
+        if self.mediaBytes > 9223372036854775807 { throw ContractValidationError(field: "media_bytes", code: "maximum") }
+        if self.queueDelayMicros < 0 { throw ContractValidationError(field: "queue_delay_micros", code: "minimum") }
+        if self.queueDelayMicros > 9223372036854775807 { throw ContractValidationError(field: "queue_delay_micros", code: "maximum") }
+        if self.processingDelayMicros < 0 { throw ContractValidationError(field: "processing_delay_micros", code: "minimum") }
+        if self.processingDelayMicros > 9223372036854775807 { throw ContractValidationError(field: "processing_delay_micros", code: "maximum") }
+        if self.processingSamples < 0 { throw ContractValidationError(field: "processing_samples", code: "minimum") }
+        if self.processingSamples > 9223372036854775807 { throw ContractValidationError(field: "processing_samples", code: "maximum") }
+        if self.pacingDelayMicros < 0 { throw ContractValidationError(field: "pacing_delay_micros", code: "minimum") }
+        if self.pacingDelayMicros > 9223372036854775807 { throw ContractValidationError(field: "pacing_delay_micros", code: "maximum") }
+        if self.providerErrors < 0 { throw ContractValidationError(field: "provider_errors", code: "minimum") }
+        if self.providerErrors > 9223372036854775807 { throw ContractValidationError(field: "provider_errors", code: "maximum") }
+        if self.inputRejected < 0 { throw ContractValidationError(field: "input_rejected", code: "minimum") }
+        if self.inputRejected > 9223372036854775807 { throw ContractValidationError(field: "input_rejected", code: "maximum") }
+        if self.controlRttMicros < 0 { throw ContractValidationError(field: "control_rtt_micros", code: "minimum") }
+        if self.controlRttMicros > 9223372036854775807 { throw ContractValidationError(field: "control_rtt_micros", code: "maximum") }
+        if self.controlJitterMicros < 0 { throw ContractValidationError(field: "control_jitter_micros", code: "minimum") }
+        if self.controlJitterMicros > 9223372036854775807 { throw ContractValidationError(field: "control_jitter_micros", code: "maximum") }
+        if self.controlLossPpm < 0 { throw ContractValidationError(field: "control_loss_ppm", code: "minimum") }
+        if self.controlLossPpm > 1000000 { throw ContractValidationError(field: "control_loss_ppm", code: "maximum") }
+        if self.pendingReliable < 0 { throw ContractValidationError(field: "pending_reliable", code: "minimum") }
+        if self.pendingReliable > 9223372036854775807 { throw ContractValidationError(field: "pending_reliable", code: "maximum") }
+        if !["unknown", "starting", "ready", "disconnected", "terminating", "terminated", "cleanup_pending", "failed"].contains(self.providerState) { throw ContractValidationError(field: "provider_state", code: "invalid_value") }
+    }
+
+    public static func decodeJSON(_ data: Data) throws -> Self { try JSONDecoder().decode(Self.self, from: data) }
+    public func encodeJSON() throws -> Data { try validate(); return try JSONEncoder().encode(self) }
+}
+
 public struct GrantReference: Codable, Equatable {
     public let opaqueValue: String
     public let expiresAt: String
@@ -1458,6 +1572,7 @@ public struct ProviderSessionWork: Codable, Equatable {
     public let providerProfile: String
     public let providerIdentity: String
     public let policyVersionId: String
+    public let streamPolicy: ProviderStreamPolicy
     public let applicationId: String
     public let clientId: String
     public let managementHost: String
@@ -1478,6 +1593,7 @@ public struct ProviderSessionWork: Codable, Equatable {
         case providerProfile = "provider_profile"
         case providerIdentity = "provider_identity"
         case policyVersionId = "policy_version_id"
+        case streamPolicy = "stream_policy"
         case applicationId = "application_id"
         case clientId = "client_id"
         case managementHost = "management_host"
@@ -1491,7 +1607,7 @@ public struct ProviderSessionWork: Codable, Equatable {
         case providerApplicationTerminationAllowed = "provider_application_termination_allowed"
     }
 
-    public init(version: String, sessionId: String, gatewayId: String, reconnectSequence: Int64, expiresAt: String, providerProfile: String, providerIdentity: String, policyVersionId: String, applicationId: String, clientId: String, managementHost: String, managementPort: Int64, streamHost: String, streamPort: Int64, clientCertificatePem: String, clientPrivateKeyPem: String, serverCertificatePem: String, clipboardPolicy: ClipboardPolicy, providerApplicationTerminationAllowed: Bool) throws {
+    public init(version: String, sessionId: String, gatewayId: String, reconnectSequence: Int64, expiresAt: String, providerProfile: String, providerIdentity: String, policyVersionId: String, streamPolicy: ProviderStreamPolicy, applicationId: String, clientId: String, managementHost: String, managementPort: Int64, streamHost: String, streamPort: Int64, clientCertificatePem: String, clientPrivateKeyPem: String, serverCertificatePem: String, clipboardPolicy: ClipboardPolicy, providerApplicationTerminationAllowed: Bool) throws {
         self.version = version
         self.sessionId = sessionId
         self.gatewayId = gatewayId
@@ -1500,6 +1616,7 @@ public struct ProviderSessionWork: Codable, Equatable {
         self.providerProfile = providerProfile
         self.providerIdentity = providerIdentity
         self.policyVersionId = policyVersionId
+        self.streamPolicy = streamPolicy
         self.applicationId = applicationId
         self.clientId = clientId
         self.managementHost = managementHost
@@ -1518,7 +1635,7 @@ public struct ProviderSessionWork: Codable, Equatable {
         let all = try decoder.container(keyedBy: AnyCodingKey.self)
         for key in all.allKeys where CodingKeys(stringValue: key.stringValue) == nil { throw ContractValidationError(field: key.stringValue, code: "unknown_field") }
         let c = try decoder.container(keyedBy: CodingKeys.self)
-        try self.init(version: try c.decode(String.self, forKey: .version), sessionId: try c.decode(String.self, forKey: .sessionId), gatewayId: try c.decode(String.self, forKey: .gatewayId), reconnectSequence: try c.decode(Int64.self, forKey: .reconnectSequence), expiresAt: try c.decode(String.self, forKey: .expiresAt), providerProfile: try c.decode(String.self, forKey: .providerProfile), providerIdentity: try c.decode(String.self, forKey: .providerIdentity), policyVersionId: try c.decode(String.self, forKey: .policyVersionId), applicationId: try c.decode(String.self, forKey: .applicationId), clientId: try c.decode(String.self, forKey: .clientId), managementHost: try c.decode(String.self, forKey: .managementHost), managementPort: try c.decode(Int64.self, forKey: .managementPort), streamHost: try c.decode(String.self, forKey: .streamHost), streamPort: try c.decode(Int64.self, forKey: .streamPort), clientCertificatePem: try c.decode(String.self, forKey: .clientCertificatePem), clientPrivateKeyPem: try c.decode(String.self, forKey: .clientPrivateKeyPem), serverCertificatePem: try c.decode(String.self, forKey: .serverCertificatePem), clipboardPolicy: try c.decode(ClipboardPolicy.self, forKey: .clipboardPolicy), providerApplicationTerminationAllowed: try c.decode(Bool.self, forKey: .providerApplicationTerminationAllowed))
+        try self.init(version: try c.decode(String.self, forKey: .version), sessionId: try c.decode(String.self, forKey: .sessionId), gatewayId: try c.decode(String.self, forKey: .gatewayId), reconnectSequence: try c.decode(Int64.self, forKey: .reconnectSequence), expiresAt: try c.decode(String.self, forKey: .expiresAt), providerProfile: try c.decode(String.self, forKey: .providerProfile), providerIdentity: try c.decode(String.self, forKey: .providerIdentity), policyVersionId: try c.decode(String.self, forKey: .policyVersionId), streamPolicy: try c.decode(ProviderStreamPolicy.self, forKey: .streamPolicy), applicationId: try c.decode(String.self, forKey: .applicationId), clientId: try c.decode(String.self, forKey: .clientId), managementHost: try c.decode(String.self, forKey: .managementHost), managementPort: try c.decode(Int64.self, forKey: .managementPort), streamHost: try c.decode(String.self, forKey: .streamHost), streamPort: try c.decode(Int64.self, forKey: .streamPort), clientCertificatePem: try c.decode(String.self, forKey: .clientCertificatePem), clientPrivateKeyPem: try c.decode(String.self, forKey: .clientPrivateKeyPem), serverCertificatePem: try c.decode(String.self, forKey: .serverCertificatePem), clipboardPolicy: try c.decode(ClipboardPolicy.self, forKey: .clipboardPolicy), providerApplicationTerminationAllowed: try c.decode(Bool.self, forKey: .providerApplicationTerminationAllowed))
     }
 
     public func validate() throws {
@@ -1539,6 +1656,7 @@ public struct ProviderSessionWork: Codable, Equatable {
         if self.policyVersionId.isEmpty { throw ContractValidationError(field: "policy_version_id", code: "required") }
         if !self.policyVersionId.isEmpty && self.policyVersionId.utf8.count < 1 { throw ContractValidationError(field: "policy_version_id", code: "min_length") }
         if self.policyVersionId.utf8.count > 128 { throw ContractValidationError(field: "policy_version_id", code: "max_length") }
+        try self.streamPolicy.validate()
         if self.applicationId.isEmpty { throw ContractValidationError(field: "application_id", code: "required") }
         if !self.applicationId.isEmpty && self.applicationId.utf8.count < 1 { throw ContractValidationError(field: "application_id", code: "min_length") }
         if self.applicationId.utf8.count > 128 { throw ContractValidationError(field: "application_id", code: "max_length") }
@@ -1614,6 +1732,55 @@ public struct ProviderState: Codable, Equatable {
     public func encodeJSON() throws -> Data { try validate(); return try JSONEncoder().encode(self) }
 }
 
+public struct ProviderStreamPolicy: Codable, Equatable {
+    public let resolutionWidth: Int64
+    public let resolutionHeight: Int64
+    public let fps: Int64
+    public let codec: String
+    public let bitrateKbps: Int64
+    public let audioEnabled: Bool
+    enum CodingKeys: String, CodingKey {
+        case resolutionWidth = "resolution_width"
+        case resolutionHeight = "resolution_height"
+        case fps = "fps"
+        case codec = "codec"
+        case bitrateKbps = "bitrate_kbps"
+        case audioEnabled = "audio_enabled"
+    }
+
+    public init(resolutionWidth: Int64, resolutionHeight: Int64, fps: Int64, codec: String, bitrateKbps: Int64, audioEnabled: Bool) throws {
+        self.resolutionWidth = resolutionWidth
+        self.resolutionHeight = resolutionHeight
+        self.fps = fps
+        self.codec = codec
+        self.bitrateKbps = bitrateKbps
+        self.audioEnabled = audioEnabled
+        try validate()
+    }
+
+    public init(from decoder: Decoder) throws {
+        let all = try decoder.container(keyedBy: AnyCodingKey.self)
+        for key in all.allKeys where CodingKeys(stringValue: key.stringValue) == nil { throw ContractValidationError(field: key.stringValue, code: "unknown_field") }
+        let c = try decoder.container(keyedBy: CodingKeys.self)
+        try self.init(resolutionWidth: try c.decode(Int64.self, forKey: .resolutionWidth), resolutionHeight: try c.decode(Int64.self, forKey: .resolutionHeight), fps: try c.decode(Int64.self, forKey: .fps), codec: try c.decode(String.self, forKey: .codec), bitrateKbps: try c.decode(Int64.self, forKey: .bitrateKbps), audioEnabled: try c.decode(Bool.self, forKey: .audioEnabled))
+    }
+
+    public func validate() throws {
+        if self.resolutionWidth < 320 { throw ContractValidationError(field: "resolution_width", code: "minimum") }
+        if self.resolutionWidth > 16384 { throw ContractValidationError(field: "resolution_width", code: "maximum") }
+        if self.resolutionHeight < 200 { throw ContractValidationError(field: "resolution_height", code: "minimum") }
+        if self.resolutionHeight > 8640 { throw ContractValidationError(field: "resolution_height", code: "maximum") }
+        if self.fps < 1 { throw ContractValidationError(field: "fps", code: "minimum") }
+        if self.fps > 240 { throw ContractValidationError(field: "fps", code: "maximum") }
+        if !["H264", "HEVC", "AV1"].contains(self.codec) { throw ContractValidationError(field: "codec", code: "invalid_value") }
+        if self.bitrateKbps < 100 { throw ContractValidationError(field: "bitrate_kbps", code: "minimum") }
+        if self.bitrateKbps > 1000000 { throw ContractValidationError(field: "bitrate_kbps", code: "maximum") }
+    }
+
+    public static func decodeJSON(_ data: Data) throws -> Self { try JSONDecoder().decode(Self.self, from: data) }
+    public func encodeJSON() throws -> Data { try validate(); return try JSONEncoder().encode(self) }
+}
+
 public struct ReauthGrant: Codable, Equatable {
     public let token: String
     public let purpose: String
@@ -2153,7 +2320,8 @@ public struct VersionNegotiation: Codable, Equatable {
 
 public extension TunnelAdmissionRequest {
     func deviceAdmissionTranscript() -> Data {
-        let fields = [sessionId, gatewayId, audience, grant, String(reconnectSequence), clientNonce, capabilities.transport, capabilities.framing, capabilities.media, capabilities.audio, capabilities.sourceRateControl, capabilities.clientDecode]
+        var fields = [sessionId, gatewayId, audience, grant, String(reconnectSequence), clientNonce, capabilities.transport, capabilities.framing, capabilities.media, capabilities.audio, capabilities.sourceRateControl, String(capabilities.clientDecode.count)]
+        fields.append(contentsOf: capabilities.clientDecode)
         var transcript = "versevdi/tunnel-admission/v1"
         for field in fields { transcript += "\(field.utf8.count):\(field)" }
         return Data(transcript.utf8)
@@ -2164,10 +2332,13 @@ public extension CapabilityProfile {
     static func intersection(_ profiles: [CapabilityProfile]) throws -> CapabilityProfile {
         guard let selected = profiles.first else { throw ContractValidationError(field: "capabilities", code: "no_overlap") }
         try selected.validate()
+        var common = selected.clientDecode
         for profile in profiles.dropFirst() {
             try profile.validate()
-            if profile != selected { throw ContractValidationError(field: "capabilities", code: "no_overlap") }
+            if profile.transport != selected.transport || profile.framing != selected.framing || profile.media != selected.media || profile.audio != selected.audio || profile.sourceRateControl != selected.sourceRateControl { throw ContractValidationError(field: "capabilities", code: "no_overlap") }
+            common = common.filter { profile.clientDecode.contains($0) }
+            if common.isEmpty { throw ContractValidationError(field: "capabilities", code: "no_overlap") }
         }
-        return selected
+        return try CapabilityProfile(transport: selected.transport, framing: selected.framing, media: selected.media, audio: selected.audio, sourceRateControl: selected.sourceRateControl, clientDecode: common)
     }
 }

openspec/changes/archive/2026-07-29-phase3c-apollo-input-feedback/tasks.md

@@ -14,16 +14,16 @@
 
 - [x] 2.1 Run Protocol validation and the Go, Rust, and Swift conformance
   consumers against the new fixtures.
-- [ ] 2.2 Advance the Data Plane to the final immutable Protocol revision and
+- [x] 2.2 Advance the Data Plane to the final immutable Protocol revision and
   translate only the typed envelopes to provider control packets.
 - [x] 2.3 Add deterministic host-feedback forwarding and input-release tests
   without provider endpoint or credential disclosure.
-- [ ] 2.4 Advance the Data Plane and Connection Server to the final clipboard
+- [x] 2.4 Advance the Data Plane and Connection Server to the final clipboard
   contract and prove disabled direction, malformed/oversized text, rate, loop,
   and file/binary rejection against the authenticated provider path.
 
 ## 3. Freeze
 
-- [ ] 3.1 Reconcile the canonical specification, OpenSpec tasks, source
+- [x] 3.1 Reconcile the canonical specification, OpenSpec tasks, source
   provenance, and consumer fixture digest before creating a new immutable
   Protocol release candidate.

openspec/changes/archive/2026-07-30-fix-terminal-receipt-conformance/.openspec.yaml

@@ -0,0 +1,2 @@
+schema: spec-driven
+created: 2026-07-30

openspec/changes/archive/2026-07-30-fix-terminal-receipt-conformance/design.md

@@ -0,0 +1,27 @@
+## Context
+
+RC8's canonical requirement names a terminal receipt, but its frame grammar, fixed fixture, and all Protocol validators reject the exact receipt accepted by Data Plane. The existing VGF1 envelope and generated conformance machinery already cover the required boundary.
+
+## Goals / Non-Goals
+
+**Goals:**
+
+- Make one fixed empty client-direction type `0x03` receipt valid in every Protocol validator.
+- Preserve all existing VGF1 direction, type, size, and payload validation.
+- Make independent clients able to construct the receipt from Protocol-owned evidence.
+
+**Non-Goals:**
+
+- No new envelope, feedback framework, transport, or acknowledgement protocol.
+- No change to gateway-to-client termination, rumble, HDR, client IDR, or FEC payloads.
+
+## Decisions
+
+- Extend the existing VGF1 grammar and fixed TSV corpus; generated and native validators remain consumers of that single contract.
+- Reserve type `0x03` only for client direction with a zero-length payload. Direction and exact-length checks remain prior trust-boundary requirements.
+- Publish the verified change as a new immutable version; RC8 remains unchanged.
+
+## Risks / Trade-offs
+
+- [A validator diverges from the fixed corpus] → Require normalized cross-language conformance in `make verify`.
+- [Receipt handling is accepted outside terminal state] → Keep state authorization in Data Plane; Protocol validates only the wire shape.

openspec/changes/archive/2026-07-30-fix-terminal-receipt-conformance/proposal.md

@@ -0,0 +1,23 @@
+## Why
+
+The canonical terminal-receipt requirement contradicts the fixed VGF1 grammar and every generated validator, so RC8 cannot provide an executable cross-language contract for gateway-owned terminal closure.
+
+## What Changes
+
+- Define client-direction VGF1 type `0x03` as an empty terminal receipt in the existing frame grammar.
+- Add fixed conformance vectors for valid receipt handling and invalid direction, body, truncation, length, and unknown-type cases.
+- Generate consistent Go, Rust, Swift, and Python validation behavior from the Protocol source.
+
+## Capabilities
+
+### New Capabilities
+
+None.
+
+### Modified Capabilities
+
+- `gateway-input-feedback`: Make the already-required terminal receipt executable and cross-language conformant without weakening other VGF1 validation.
+
+## Impact
+
+Protocol frame documentation, conformance fixtures, generators, generated bindings, native validator tools, and immutable Protocol consumers. RC8 remains unchanged and a new immutable Protocol version is required.

openspec/changes/archive/2026-07-30-fix-terminal-receipt-conformance/specs/gateway-input-feedback/spec.md

@@ -0,0 +1,27 @@
+## MODIFIED Requirements
+
+### Requirement: Bounded provider feedback control envelope
+The registered bidirectional reliable `control.ack.v1` flow SHALL define an ASCII `VGF1` envelope
+with a direction byte, type byte, big-endian payload length, and exact payload
+bytes. Only host termination, rumble, and HDR feedback SHALL be valid from the
+gateway to the client. Only IDR, FEC/loss feedback, and client-direction type
+`0x03` with an empty payload as terminal receipt SHALL be valid from the client
+to the gateway. The fixed conformance corpus and every generated or native
+Protocol validator SHALL accept that exact receipt and reject unknown types,
+wrong direction, nonempty receipt bodies, truncation, and length mismatch. The
+terminal receipt SHALL be valid only while the same session awaits receipt of
+its one terminal event and MUST NOT be forwarded to the provider. The envelope
+SHALL contain no provider address, certificate, credential, or opaque provider
+packet.
+
+#### Scenario: Host termination forwarding
+- **WHEN** the Apollo adapter receives an authenticated host termination packet
+- **THEN** the gateway forwards a bounded `VGF1` termination envelope over reliable Verse control and reports the provider state separately
+
+#### Scenario: Terminal event receipt
+- **WHEN** a client receives the reliable typed terminal event
+- **THEN** it sends the fixed empty client-direction type `0x03` receipt and the gateway owns bounded tunnel closure without forwarding the receipt to the provider
+
+#### Scenario: Unauthorized or malformed feedback
+- **WHEN** feedback is disabled by policy, has an invalid direction/type/length, contains a forbidden provider field, or sends a terminal receipt outside the awaiting-terminal state
+- **THEN** the gateway rejects it without forwarding or provider mutation

openspec/changes/archive/2026-07-30-fix-terminal-receipt-conformance/tasks.md

@@ -0,0 +1,15 @@
+## 1. Red Conformance
+
+- [x] 1.1 Add fixed valid and invalid terminal-receipt vectors and prove Python, Go, Rust, and Swift reject the required valid vector
+- [x] 1.2 Add a Data Plane independent-client regression that consumes the Protocol fixed vector rather than the production encoder
+
+## 2. Contract Repair
+
+- [x] 2.1 Update the VGF1 grammar and Protocol validator sources for the exact empty client-direction type `0x03` receipt
+- [x] 2.2 Regenerate bindings normally and prove deterministic generation has no drift
+- [x] 2.3 Run complete Protocol verification and strict OpenSpec validation
+
+## 3. Immutable Release
+
+- [x] 3.1 Verify the next version is unused locally and remotely, publish one immutable annotated tag, and verify its object and peeled commit
+- [x] 3.2 Resolve the version from separate empty caches and pin exact fetched checksums in Data Plane and Connection Server

openspec/changes/archive/2026-07-30-gateway-terminal-receipt/.openspec.yaml

@@ -0,0 +1,2 @@
+schema: spec-driven
+created: 2026-07-30

openspec/changes/archive/2026-07-30-gateway-terminal-receipt/design.md

@@ -0,0 +1,26 @@
+## Context
+
+QUIC stream writes complete before peer receipt. The previous gateway avoided losing its last control frame by waiting for client-owned connection closure; immediate gateway closure reproduced event loss. `control.ack.v1` is already reliable and bidirectional, so no new flow is needed.
+
+## Goals / Non-Goals
+
+**Goals:**
+
+- Represent peer receipt of the one terminal control event.
+- Keep the message bounded, direction-specific, and independent of provider data.
+
+**Non-Goals:**
+
+- General acknowledgements, retries, lifecycle state, or provider transport semantics.
+- Changes to JSON schemas or generated bindings.
+
+## Decisions
+
+- Assign client-direction `VGF1` type `0x03` with an empty payload to terminal receipt.
+- Permit it only after a terminal event; the Data Plane enforces session state and deadline.
+- Preserve all existing message bytes and meanings.
+
+## Risks / Trade-offs
+
+- [Older clients do not send the receipt] → The gateway closes at its bounded receipt deadline; compatibility does not transfer tunnel ownership back to the client.
+- [A stale receipt is replayed] → The gateway rejects receipts outside the single awaiting-terminal state.

openspec/changes/archive/2026-07-30-gateway-terminal-receipt/proposal.md

@@ -0,0 +1,23 @@
+## Why
+
+A public independent QUIC regression proved that closing the gateway connection immediately after writing the reliable terminal event can discard that event, while waiting for the client to close leaves session ownership with the client. The registered bidirectional control flow needs one bounded receipt semantic so the gateway can close only after observed delivery or a fixed receipt deadline.
+
+## What Changes
+
+- Add a client-to-gateway terminal receipt to the existing bounded `VGF1` envelope on `control.ack.v1`.
+- Keep the receipt payload empty and valid only while one terminal event is awaiting receipt.
+- Preserve the existing IDR, FEC, termination, rumble, and HDR meanings.
+
+## Capabilities
+
+### New Capabilities
+
+None.
+
+### Modified Capabilities
+
+- `gateway-input-feedback`: Permit the narrowly scoped terminal receipt in the existing reliable control envelope.
+
+## Impact
+
+This changes the immutable Protocol semantics consumed by the GPLv3 Data Plane and independent Verse clients. It adds no schema field, dependency, provider address, credential, generic acknowledgement framework, or provider-facing message.

openspec/changes/archive/2026-07-30-gateway-terminal-receipt/specs/gateway-input-feedback/spec.md

@@ -0,0 +1,23 @@
+## MODIFIED Requirements
+
+### Requirement: Bounded provider feedback control envelope
+The registered bidirectional reliable `control.ack.v1` flow SHALL define an ASCII `VGF1` envelope
+with a direction byte, type byte, big-endian payload length, and exact payload
+bytes. Only host termination, rumble, and HDR feedback SHALL be valid from the
+gateway to the client. Only IDR, FEC/loss feedback, and an empty terminal receipt
+SHALL be valid from the client to the gateway. The terminal receipt SHALL be
+valid only while the same session awaits receipt of its one terminal event and
+MUST NOT be forwarded to the provider. The envelope SHALL contain no provider
+address, certificate, credential, or opaque provider packet.
+
+#### Scenario: Host termination forwarding
+- **WHEN** the Apollo adapter receives an authenticated host termination packet
+- **THEN** the gateway forwards a bounded `VGF1` termination envelope over reliable Verse control and reports the provider state separately
+
+#### Scenario: Terminal event receipt
+- **WHEN** a client receives the reliable typed terminal event
+- **THEN** it sends the empty terminal receipt and the gateway owns bounded tunnel closure without forwarding the receipt to the provider
+
+#### Scenario: Unauthorized or malformed feedback
+- **WHEN** feedback is disabled by policy, has an invalid direction/type/length, contains a forbidden provider field, or sends a terminal receipt outside the awaiting-terminal state
+- **THEN** the gateway rejects it without forwarding or provider mutation

openspec/changes/archive/2026-07-30-gateway-terminal-receipt/tasks.md

@@ -0,0 +1,9 @@
+## 1. Contract
+
+- [x] 1.1 Define the empty client-direction terminal receipt on `control.ack.v1`
+- [x] 1.2 Run complete Protocol verification and deterministic generation checks
+
+## 2. Immutable release
+
+- [x] 2.1 Publish one new never-reused immutable Protocol version after final contract verification
+- [x] 2.2 Resolve the version from separate empty consumer caches and record exact checksums

openspec/changes/archive/2026-07-30-phase3c-gateway-heartbeat-telemetry/.openspec.yaml

@@ -0,0 +1,2 @@
+schema: spec-driven
+created: 2026-07-29

openspec/changes/archive/2026-07-30-phase3c-gateway-heartbeat-telemetry/design.md

@@ -0,0 +1,38 @@
+## Context
+
+The Data Plane already collects process-wide atomic counters and gauges. Only active connections and egress Kbps cross the authenticated heartbeat boundary.
+
+## Goals / Non-Goals
+
+**Goals:**
+
+- Carry the existing low-cardinality observations with explicit units.
+- Bound every numeric field and enumerate provider state.
+- Keep registration capacity distinct from measured traffic.
+
+**Non-Goals:**
+
+- Add session, route, endpoint, credential, label, or payload fields.
+- Define a new telemetry transport.
+- Publish a Protocol version.
+
+## Decisions
+
+- Nest the values in required `GatewayTelemetry` so heartbeat telemetry is one strict atomic contract.
+- Use cumulative counters and microsecond delay totals plus one processing sample per complete provider media unit; consumers can derive rates/averages without losing raw observations.
+- Define queue delay as residence in the bounded provider queue, processing as active recovery/framing/QUIC work excluding queue and scheduler waits, and pacing as scheduler wait only.
+- Derive measured egress from transmitted-byte deltas over monotonic elapsed time; configured capacity remains registration data.
+- Keep loss as parts per million and provider state as a bounded enum.
+
+## Risks / Trade-offs
+
+- [Cumulative counters approach signed integer limits] → Bound at signed 64-bit and saturate consumer conversions.
+- [New required object breaks RC6] → Test locally and publish only under separate immutable-version authorization.
+
+## Migration Plan
+
+Regenerate all bindings locally, update both consumers through the temporary workspace, and stop at the immutable publication boundary.
+
+## Open Questions
+
+None.

openspec/changes/archive/2026-07-30-phase3c-gateway-heartbeat-telemetry/proposal.md

@@ -0,0 +1,23 @@
+## Why
+
+Gateway heartbeat currently carries active sessions and one egress rate but cannot transport the required observed process and provider-path telemetry.
+
+## What Changes
+
+- Add one required bounded low-cardinality telemetry object to authenticated gateway heartbeat.
+- Cover counters, delay totals/samples, control RTT/loss/jitter, pending reliability, reconnects, and provider state.
+- Keep configured capacity exclusively in registration and measured egress in heartbeat.
+
+## Capabilities
+
+### New Capabilities
+
+- `gateway-heartbeat-telemetry`: Authenticated heartbeats carry bounded observed gateway telemetry without routes, sessions, credentials, or payload data.
+
+### Modified Capabilities
+
+None.
+
+## Impact
+
+The control-v1 schema, generated Go/Rust/Swift bindings, conformance checks, and both unpublished consumers require coordinated local updates. RC6 remains unchanged.

openspec/changes/archive/2026-07-30-phase3c-gateway-heartbeat-telemetry/specs/gateway-heartbeat-telemetry/spec.md

@@ -0,0 +1,22 @@
+## ADDED Requirements
+
+### Requirement: Heartbeat carries observed gateway telemetry
+Every authenticated `GatewayHeartbeat` SHALL carry the bounded process-level counters, delay totals and samples, control RTT/loss/jitter, pending reliable work, reconnect count, and provider state defined by `GatewayTelemetry`.
+
+#### Scenario: Valid telemetry heartbeat
+- **WHEN** a gateway reports its current observed snapshot
+- **THEN** Go, Rust, and Swift bindings accept the same bounded low-cardinality values and units
+
+### Requirement: Heartbeat telemetry excludes sensitive dimensions
+Heartbeat telemetry MUST reject unknown fields and MUST NOT include session, route, endpoint, credential, label, or payload values.
+
+#### Scenario: Secret or high-cardinality field is attempted
+- **WHEN** a heartbeat contains an unregistered session, route, endpoint, credential, or payload field
+- **THEN** strict contract validation rejects it before authenticated transport
+
+### Requirement: Delay and egress observations have one canonical meaning
+Queue delay SHALL measure provider-queue residence, processing delay SHALL measure active gateway recovery/framing/QUIC work excluding queue and pacing, and pacing delay SHALL measure scheduler waiting only. Processing samples SHALL count complete provider media units rather than Verse fragments. Measured egress SHALL derive from transmitted-byte deltas over monotonic elapsed time and MUST NOT be copied from configured capacity.
+
+#### Scenario: One provider unit becomes multiple Verse frames
+- **WHEN** one complete provider unit waits in the queue, traverses gateway processing, waits for pacing, and fragments into multiple Verse frames
+- **THEN** each delay total includes only its defined interval and the heartbeat advances processing samples exactly once

openspec/changes/archive/2026-07-30-phase3c-gateway-heartbeat-telemetry/tasks.md

@@ -0,0 +1,12 @@
+## 1. Contract
+
+- [x] 1.1 Add bounded GatewayTelemetry to every heartbeat
+- [x] 1.2 Add Go, Rust, and Swift strict conformance checks
+- [x] 1.3 Regenerate bindings and prove deterministic output
+- [x] 1.4 Specify queue, processing, pacing, sample, and measured-egress semantics
+
+## 2. Consumer Boundary
+
+- [x] 2.1 Verify local Data Plane and Server consumers through a temporary workspace
+- [x] 2.2 Publish one new never-reused immutable Protocol version under separate authorization
+- [x] 2.3 Resolve from empty caches and pin exact checksums in both consumers

openspec/changes/archive/2026-07-30-phase3c-provider-stream-policy/.openspec.yaml

@@ -0,0 +1,2 @@
+schema: spec-driven
+created: 2026-07-29

openspec/changes/archive/2026-07-30-phase3c-provider-stream-policy/design.md

@@ -0,0 +1,42 @@
+## Context
+
+The Server resolves an immutable stream-policy version, but RC6 provider work carries only its identifier. The Data Plane consequently cannot distinguish the authorized settings from local defaults.
+
+## Goals / Non-Goals
+
+**Goals:**
+
+- Carry only the effective launch settings required by the provider boundary.
+- Express client decode support as an ordered set of existing registered profiles.
+- Generate the same ordered registered-profile intersection for every consumer.
+- Generate identical validation from the canonical schema for all bindings.
+- Preserve the policy-version identifier for audit correlation.
+
+**Non-Goals:**
+
+- Publish or mutate RC6.
+- Add a provider-specific token grammar or generic capability framework.
+- Expose provider work or policy internals to Verse clients.
+
+## Decisions
+
+- Use one required nested `ProviderStreamPolicy` value in `ProviderSessionWork`; this keeps the policy settings atomic and avoids repeating validation.
+- Carry the Server-selected target bitrate rather than all policy bounds because Apollo ANNOUNCE consumes one configured bitrate.
+- Permit canonical `H264`, `HEVC`, and `AV1` values in the contract. A provider implementation must reject values it cannot honor rather than silently downgrade them.
+- Carry `audio_enabled` even though the current Apollo path cannot truthfully disable audio; the Data Plane must fail closed for that combination.
+- Change `client_decode` from one opaque string to a non-empty ordered unique array of registered profile identifiers. Preference belongs to the first peer's order.
+- Generate `IntersectCapabilityProfiles` from the canonical schema so Protocol, Server, and Data Plane do not maintain separate interpretations.
+
+## Risks / Trade-offs
+
+- [New required field breaks RC6 consumers] → Publish only under a separately authorized new immutable version and pin both consumers after empty-cache resolution.
+- [Provider capabilities differ] → Validate the effective policy against the selected provider before readiness.
+- [Peers advertise no common registered profile] → Reject admission instead of inventing a combined token or silently downgrading.
+
+## Migration Plan
+
+Regenerate and verify bindings locally, update both consumers through a temporary workspace only, then stop at the publication boundary. RC6 remains unchanged.
+
+## Open Questions
+
+None.

openspec/changes/archive/2026-07-30-phase3c-provider-stream-policy/proposal.md

@@ -0,0 +1,24 @@
+## Why
+
+Provider work identifies an immutable stream-policy version but omits the effective settings, allowing a gateway to launch Apollo with unrelated hard-coded media parameters.
+
+## What Changes
+
+- Add the effective resolution, frame rate, codec, selected bitrate, and audio policy to authenticated provider work.
+- Represent decode support as an ordered set of registered profiles and generate one canonical intersection operation for consumers.
+- Require generated Go, Rust, and Swift bindings to validate the same bounded stream-policy contract.
+- Keep the new contract unpublished until a new immutable Protocol version is separately authorized.
+
+## Capabilities
+
+### New Capabilities
+
+- `provider-stream-policy`: Authenticated provider work carries the exact effective stream policy consumed by the provider launch, and registered peers negotiate that policy through the shared ordered profile intersection.
+
+### Modified Capabilities
+
+None.
+
+## Impact
+
+The control-v1 schema, generated bindings, conformance fixtures, and downstream Server and Data Plane consumers require coordinated local updates. RC6 remains immutable and unchanged.

openspec/changes/archive/2026-07-30-phase3c-provider-stream-policy/specs/provider-stream-policy/spec.md

@@ -0,0 +1,33 @@
+## ADDED Requirements
+
+### Requirement: Provider work carries the effective stream policy
+Authenticated `ProviderSessionWork` SHALL carry the immutable policy version and its effective resolution, frame rate, codec, target bitrate, and audio-enabled decision.
+
+#### Scenario: Gateway receives an effective policy
+- **WHEN** the Server issues provider work for an admitted session
+- **THEN** the work identifies the policy version and includes the effective bounded stream-policy values
+
+### Requirement: Stream-policy bindings share one strict contract
+Generated Go, Rust, and Swift bindings MUST reject missing, unknown, out-of-range, or unsupported stream-policy wire values according to the canonical schema.
+
+#### Scenario: Invalid policy is rejected consistently
+- **WHEN** provider work contains an unknown codec or a value outside the canonical bounds
+- **THEN** every generated binding rejects the work before it can reach provider setup
+
+### Requirement: Decode capabilities use registered ordered profiles
+`CapabilityProfile.client_decode` SHALL be a non-empty ordered unique set containing only registered `h264-opus` and `hevc-opus` profile identifiers. It MUST NOT encode multiple capabilities in an opaque private token.
+
+#### Scenario: Independent peer advertises one registered profile
+- **WHEN** an independent peer advertises one registered decode profile
+- **THEN** canonical validation accepts that profile without requiring a combined private token
+
+### Requirement: Consumers share one ordered registered-profile intersection
+Generated Protocol behavior SHALL select common registered profiles in the first peer's preference order. Provider consumers SHALL separately reject the resulting intersection when it cannot honor the immutable stream policy.
+
+#### Scenario: Policy-compatible profile overlaps
+- **WHEN** the gateway advertises HEVC then H.264 and the client advertises only H.264
+- **THEN** the shared intersection selects `h264-opus`
+
+#### Scenario: No policy-compatible profile overlaps
+- **WHEN** peers have no registered common profile
+- **THEN** the shared intersection rejects admission without inventing a private combined token

openspec/changes/archive/2026-07-30-phase3c-provider-stream-policy/tasks.md

@@ -0,0 +1,13 @@
+## 1. Contract
+
+- [x] 1.1 Add bounded effective stream policy to ProviderSessionWork
+- [x] 1.2 Add Go, Rust, and Swift conformance coverage
+- [x] 1.3 Regenerate bindings and prove deterministic output
+- [x] 1.4 Replace the opaque decode token with an ordered unique set of registered profiles
+- [x] 1.5 Generate and cross-check canonical ordered registered-profile intersection behavior
+
+## 2. Consumer Boundary
+
+- [x] 2.1 Verify local Server and Data Plane consumers through a temporary workspace
+- [x] 2.2 Publish one new never-reused immutable Protocol version under separate authorization
+- [x] 2.3 Resolve from empty caches and pin exact checksums in both consumers

openspec/changes/complete-encoded-frame-transport/.openspec.yaml

@@ -0,0 +1,2 @@
+schema: spec-driven
+created: 2026-07-30

openspec/changes/complete-encoded-frame-transport/design.md

@@ -0,0 +1,29 @@
+## Context
+
+RC9 datagram-v1 uses one-byte fragment fields and caps a media unit at 16 path-MTU fragments. The reviewed Apollo assembler can recover an encoded frame up to 1,028,152 bytes, so the replacement contract must carry at least that size while rejecting proportional allocation from untrusted header claims.
+
+## Goals / Non-Goals
+
+**Goals:**
+
+- Preserve datagram-v1 byte-for-byte and add explicitly negotiated datagram-v2.
+- Keep each QUIC datagram at 1,200 bytes or less.
+- Bound one complete encoded unit to 1 MiB, at most 891 fragments, four incomplete units, and a 250 ms reassembly lifetime.
+- Define duplicate, reorder, timeout, and malformed behavior for every validator.
+
+**Non-Goals:**
+
+- Provider packet exposure, codec parsing, decode/transcode, retransmission, or a generic transport framework.
+
+## Decisions
+
+- Datagram-v2 widens fragment index and count to unsigned 16-bit network-order fields, making a 23-byte header and 1,177-byte media payload. This is the smallest header change that covers the reviewed provider maximum without unrelated sequences.
+- Sequence identifies one complete unit. All fragments must agree on channel, sequence, timestamp, count, and flags.
+- Reassembly stores only received fragment bytes, rejects conflicting duplicates, permits exact duplicates and bounded reorder, evicts oldest state above four units, and expires state after 250 ms.
+- Capability validation registers `datagram-v1` and `datagram-v2`; exact profile equality keeps downgrade behavior fail closed.
+
+## Risks / Trade-offs
+
+- [More fragments increase per-frame overhead] → retain the 1,200-byte PMTU envelope and the 1 MiB frame ceiling.
+- [Four concurrent 1 MiB units can consume bounded memory] → allocate only received bytes and evict/expire incomplete state.
+- [RC9 peers cannot validate datagram-v2] → require a new immutable Protocol release and exact consumer pins; never mutate RC9.

openspec/changes/complete-encoded-frame-transport/proposal.md

@@ -0,0 +1,24 @@
+## Why
+
+The RC9 datagram contract limits one encoded media unit to 18,864 bytes, below the bounded complete frames required by the reviewed Apollo adapter and the fixed Phase 3C profiles. A new immutable Protocol release must define complete-frame transport and reassembly bounds before consumers can relay realistic encoded frames without mutation.
+
+## What Changes
+
+- Add a versioned PMTU-safe media datagram header with wider fragment fields.
+- Bound complete encoded frames, fragments, reassembly state, duplicates, reorder, timeout, and allocation.
+- Preserve RC9 datagram-v1 unchanged and require explicit negotiation of the new framing profile.
+- Add fixed Python, Go, Rust, and Swift conformance vectors for valid and malformed framing.
+
+## Capabilities
+
+### New Capabilities
+
+- `gateway-media-framing`: Versioned complete encoded-frame fragmentation and bounded reassembly contract.
+
+### Modified Capabilities
+
+None.
+
+## Impact
+
+Protocol framing documentation, registries, capability schema, fixed conformance fixtures, validators, generated Go/Rust/Swift bindings, and immutable consumer versioning. Requirements: SYS-002, SYS-003, P3C-006, P3C-007, P3C-008, P3C-030, P3C-038, VER-001, VER-002, VER-028.

openspec/changes/complete-encoded-frame-transport/specs/gateway-media-framing/spec.md

@@ -0,0 +1,34 @@
+## ADDED Requirements
+
+### Requirement: Versioned complete encoded-frame datagrams
+The Protocol SHALL register `datagram-v2` with a 23-byte network-order header containing magic, version, channel, flags, sequence, timestamp, unsigned 16-bit fragment index, unsigned 16-bit fragment count, and unsigned 16-bit payload length. Media datagrams MUST remain at most 1,200 bytes with at most 1,177 payload bytes, and one sequence MUST represent exactly one complete encoded unit of at most 1,048,576 bytes and 891 fragments.
+
+#### Scenario: Bounded large encoded frame
+- **WHEN** an encoded media frame is larger than the datagram-v1 18,864-byte limit but no larger than 1,048,576 bytes
+- **THEN** datagram-v2 carries it under one sequence in at most 891 independently bounded fragments
+
+#### Scenario: Oversized encoded frame
+- **WHEN** a sender attempts more than 1,048,576 complete bytes or 891 fragments
+- **THEN** framing rejects the unit before sending or allocating proportional state
+
+### Requirement: Bounded complete-frame reassembly
+Datagram-v2 reassembly SHALL retain at most four incomplete media units and only the bytes actually received, permit bounded fragment reorder and exact duplicate fragments, reject conflicting duplicates or inconsistent metadata, expire incomplete state after 250 milliseconds, and emit a payload only after every fragment is present exactly once.
+
+#### Scenario: Reordered frame completes
+- **WHEN** every valid fragment for one unit arrives out of order within the reassembly bounds
+- **THEN** the receiver emits exactly one byte-identical complete encoded frame with its original boundary
+
+#### Scenario: Malformed or stale reassembly
+- **WHEN** fragments conflict, metadata changes, an index or count is invalid, state exceeds four incomplete units, or a unit exceeds its timeout
+- **THEN** the receiver rejects or evicts that incomplete unit without proportional allocation or payload emission
+
+### Requirement: Explicit framing negotiation
+`CapabilityProfile.framing` SHALL accept only registered `datagram-v1` or `datagram-v2` values. A peer MUST use datagram-v2 only after exact capability intersection and MUST NOT reinterpret datagram-v1 bytes as datagram-v2.
+
+#### Scenario: Independent datagram-v2 peers overlap
+- **WHEN** both peers advertise the registered datagram-v2 framing profile
+- **THEN** generated Go, Rust, and Swift validation and fixed conformance accept the profile
+
+#### Scenario: Unknown or downgraded framing
+- **WHEN** a peer advertises an unknown framing value or the peers advertise different versions
+- **THEN** capability validation or intersection rejects the session before media forwarding

openspec/changes/complete-encoded-frame-transport/tasks.md

@@ -0,0 +1,18 @@
+## 1. Red conformance
+
+- [x] 1.1 Add fixed datagram-v2 and capability vectors that fail current Python, Go, Rust, and Swift validators
+- [x] 1.2 Prove unknown version, malformed length, invalid fragment, and oversized complete-unit cases remain rejected
+
+## 2. Contract implementation
+
+- [x] 2.1 Add the versioned datagram-v2 frame grammar and registered framing values
+- [x] 2.2 Update generator/native validators and regenerate Go, Rust, and Swift bindings normally
+
+## 3. Verification
+
+- [x] 3.1 Run focused cross-language conformance and strict OpenSpec validation
+- [x] 3.2 Run complete `make verify` and prove a second generation has no drift
+
+## 4. Immutable boundary
+
+- [ ] 4.1 Publish one new never-reused immutable Protocol version and resolve it from empty consumer caches

openspec/specs/gateway-heartbeat-telemetry/spec.md

@@ -0,0 +1,25 @@
+# gateway-heartbeat-telemetry Specification
+
+## Purpose
+Define the bounded, low-cardinality gateway observations carried by authenticated heartbeats and their canonical units and exclusions.
+## Requirements
+### Requirement: Heartbeat carries observed gateway telemetry
+Every authenticated `GatewayHeartbeat` SHALL carry the bounded process-level counters, delay totals and samples, control RTT/loss/jitter, pending reliable work, reconnect count, and provider state defined by `GatewayTelemetry`.
+
+#### Scenario: Valid telemetry heartbeat
+- **WHEN** a gateway reports its current observed snapshot
+- **THEN** Go, Rust, and Swift bindings accept the same bounded low-cardinality values and units
+
+### Requirement: Heartbeat telemetry excludes sensitive dimensions
+Heartbeat telemetry MUST reject unknown fields and MUST NOT include session, route, endpoint, credential, label, or payload values.
+
+#### Scenario: Secret or high-cardinality field is attempted
+- **WHEN** a heartbeat contains an unregistered session, route, endpoint, credential, or payload field
+- **THEN** strict contract validation rejects it before authenticated transport
+
+### Requirement: Delay and egress observations have one canonical meaning
+Queue delay SHALL measure provider-queue residence, processing delay SHALL measure active gateway recovery/framing/QUIC work excluding queue and pacing, and pacing delay SHALL measure scheduler waiting only. Processing samples SHALL count complete provider media units rather than Verse fragments. Measured egress SHALL derive from transmitted-byte deltas over monotonic elapsed time and MUST NOT be copied from configured capacity.
+
+#### Scenario: One provider unit becomes multiple Verse frames
+- **WHEN** one complete provider unit waits in the queue, traverses gateway processing, waits for pacing, and fragments into multiple Verse frames
+- **THEN** each delay total includes only its defined interval and the heartbeat advances processing samples exactly once

openspec/specs/gateway-input-feedback/spec.md

@@ -0,0 +1,90 @@
+# gateway-input-feedback Specification
+
+## Purpose
+Define the provider-neutral typed input, feedback, and text-clipboard envelopes
+used across the authenticated Verse gateway boundary.
+## Requirements
+### Requirement: Typed sequenced input envelope
+The `input.sequenced.v1` payload SHALL begin with ASCII `VGI1`, a one-byte
+event kind, and one-byte payload length. It SHALL contain exactly one bounded
+keyboard, mouse-button, relative-mouse, UTF-8 scalar, or controller-state
+event. False keyboard/mouse state and zeroed controller state are explicit
+releases. Multibyte integer fields SHALL be big-endian. Unknown kinds,
+length mismatches, malformed UTF-8, unsupported controller indices, and
+reserved fields SHALL be rejected before provider translation.
+
+#### Scenario: Keyboard state change
+- **WHEN** a client sends a valid keyboard press or release envelope
+- **THEN** the gateway forwards the corresponding typed provider input on its
+  reliable keyboard channel and records the pressed state for cleanup.
+
+#### Scenario: Invalid input envelope
+- **WHEN** a client sends an envelope with an unknown event kind, invalid
+  length, malformed UTF-8 scalar, or nonzero reserved field
+- **THEN** the gateway rejects it without sending provider input or changing
+  pressed state.
+
+### Requirement: Explicit input release
+The typed input envelope SHALL represent release of each keyboard key,
+mouse button, and controller state. Gateway cleanup SHALL send a typed release
+for every accepted pressed state before provider disconnect; it SHALL NOT use
+an implementation-specific release-all provider command.
+
+#### Scenario: Tunnel cleanup with pressed input
+- **WHEN** a tunnel closes after accepted pressed keyboard, mouse, or
+  controller input
+- **THEN** the gateway emits the corresponding individual provider release
+  packets reliably before starting provider disconnect.
+
+### Requirement: Bounded provider feedback control envelope
+The registered bidirectional reliable `control.ack.v1` flow SHALL define an ASCII `VGF1` envelope
+with a direction byte, type byte, big-endian payload length, and exact payload
+bytes. Only host termination, rumble, and HDR feedback SHALL be valid from the
+gateway to the client. Only IDR, FEC/loss feedback, and client-direction type
+`0x03` with an empty payload as terminal receipt SHALL be valid from the client
+to the gateway. The fixed conformance corpus and every generated or native
+Protocol validator SHALL accept that exact receipt and reject unknown types,
+wrong direction, nonempty receipt bodies, truncation, and length mismatch. The
+terminal receipt SHALL be valid only while the same session awaits receipt of
+its one terminal event and MUST NOT be forwarded to the provider. The envelope
+SHALL contain no provider address, certificate, credential, or opaque provider
+packet.
+
+#### Scenario: Host termination forwarding
+- **WHEN** the Apollo adapter receives an authenticated host termination packet
+- **THEN** the gateway forwards a bounded `VGF1` termination envelope over reliable Verse control and reports the provider state separately
+
+#### Scenario: Terminal event receipt
+- **WHEN** a client receives the reliable typed terminal event
+- **THEN** it sends the fixed empty client-direction type `0x03` receipt and the gateway owns bounded tunnel closure without forwarding the receipt to the provider
+
+#### Scenario: Unauthorized or malformed feedback
+- **WHEN** feedback is disabled by policy, has an invalid direction/type/length, contains a forbidden provider field, or sends a terminal receipt outside the awaiting-terminal state
+- **THEN** the gateway rejects it without forwarding or provider mutation
+
+### Requirement: Policy-bound text clipboard envelope
+The reliable `clipboard.text.v1` flow SHALL carry only a typed UTF-8 text
+envelope with exact direction and a 16--128 character canonical unpadded ASCII
+base64url loop token. The Server SHALL mint
+the enabled directions, maximum text bytes, and maximum updates per minute in
+authenticated provider work. The gateway SHALL reject disabled direction,
+unknown fields, files, file URLs, client folders, binary data, malformed UTF-8,
+oversized values, rates above policy, and reflected/replayed loop tokens. It
+SHALL not put clipboard content, provider routes, or credentials in telemetry,
+audit, state, or errors.
+
+#### Scenario: Clipboard audit metadata
+- **WHEN** the gateway successfully delivers, suppresses, or rejects a clipboard update
+- **THEN** it sends an authenticated Server audit record with only direction,
+  bounded byte count, outcome, and a fixed reason; it never includes text or
+  the loop token.
+
+#### Scenario: Clipboard delivery failure
+- **WHEN** provider-to-client control delivery fails
+- **THEN** the gateway does not report the update as forwarded.
+
+#### Scenario: Reflected clipboard value
+- **WHEN** a client-originated text value returns from the provider with the
+  matching retained token/value pair
+- **THEN** the gateway suppresses the reflected update without a second
+  provider mutation or client delivery.

openspec/specs/provider-stream-policy/spec.md

@@ -0,0 +1,36 @@
+# provider-stream-policy Specification
+
+## Purpose
+Define immutable provider stream-policy fields and the registered ordered decode-profile intersection shared by all generated bindings.
+## Requirements
+### Requirement: Provider work carries the effective stream policy
+Authenticated `ProviderSessionWork` SHALL carry the immutable policy version and its effective resolution, frame rate, codec, target bitrate, and audio-enabled decision.
+
+#### Scenario: Gateway receives an effective policy
+- **WHEN** the Server issues provider work for an admitted session
+- **THEN** the work identifies the policy version and includes the effective bounded stream-policy values
+
+### Requirement: Stream-policy bindings share one strict contract
+Generated Go, Rust, and Swift bindings MUST reject missing, unknown, out-of-range, or unsupported stream-policy wire values according to the canonical schema.
+
+#### Scenario: Invalid policy is rejected consistently
+- **WHEN** provider work contains an unknown codec or a value outside the canonical bounds
+- **THEN** every generated binding rejects the work before it can reach provider setup
+
+### Requirement: Decode capabilities use registered ordered profiles
+`CapabilityProfile.client_decode` SHALL be a non-empty ordered unique set containing only registered `h264-opus` and `hevc-opus` profile identifiers. It MUST NOT encode multiple capabilities in an opaque private token.
+
+#### Scenario: Independent peer advertises one registered profile
+- **WHEN** an independent peer advertises one registered decode profile
+- **THEN** canonical validation accepts that profile without requiring a combined private token
+
+### Requirement: Consumers share one ordered registered-profile intersection
+Generated Protocol behavior SHALL select common registered profiles in the first peer's preference order. Provider consumers SHALL separately reject the resulting intersection when it cannot honor the immutable stream policy.
+
+#### Scenario: Policy-compatible profile overlaps
+- **WHEN** the gateway advertises HEVC then H.264 and the client advertises only H.264
+- **THEN** the shared intersection selects `h264-opus`
+
+#### Scenario: No policy-compatible profile overlaps
+- **WHEN** peers have no registered common profile
+- **THEN** the shared intersection rejects admission without inventing a private combined token

proto/versevdi/tunnel/v1/tunnel.proto

@@ -56,7 +56,7 @@ message CapabilityProfile {
   string media = 3;
   string audio = 4;
   string source_rate_control = 5;
-  string client_decode = 6;
+  repeated string client_decode = 6;
 }
 
 message GatewayRegistration {

registries/datagrams.json

@@ -1,6 +1,10 @@
 {
   "$schema": "https://json-schema.org/draft/2020-12/schema",
   "max_frame_bytes": 65536,
+  "framing_profiles": [
+    {"id": "datagram-v1", "header_bytes": 21, "media_payload_bytes": 1179, "max_fragments": 16, "max_complete_bytes": 18864},
+    {"id": "datagram-v2", "header_bytes": 23, "media_payload_bytes": 1177, "max_fragments": 891, "max_complete_bytes": 1048576}
+  ],
   "datagrams": [
     {"id": "control.ack.v1", "direction": "bidirectional", "max_payload_bytes": 1024, "payload_profile": "gateway-feedback-v1"},
     {"id": "control.cancel.v1", "direction": "client-to-server", "max_payload_bytes": 2048},

schemas/control-v1.schema.json

@@ -372,11 +372,17 @@
       "required": ["transport", "framing", "media", "audio", "source_rate_control", "client_decode"],
       "properties": {
         "transport": {"type": "string", "minLength": 1, "maxLength": 64},
-        "framing": {"type": "string", "minLength": 1, "maxLength": 64},
+        "framing": {"type": "string", "enum": ["datagram-v1", "datagram-v2"]},
         "media": {"type": "string", "minLength": 1, "maxLength": 64},
         "audio": {"type": "string", "minLength": 1, "maxLength": 64},
         "source_rate_control": {"type": "string", "minLength": 1, "maxLength": 64},
-        "client_decode": {"type": "string", "minLength": 1, "maxLength": 64}
+        "client_decode": {
+          "type": "array",
+          "minItems": 1,
+          "maxItems": 2,
+          "uniqueItems": true,
+          "items": {"type": "string", "enum": ["h264-opus", "hevc-opus"]}
+        }
       }
     },
     "GatewayRegistration": {
@@ -399,10 +405,35 @@
         "capabilities": {"$ref": "#/$defs/CapabilityProfile"}
       }
     },
+    "GatewayTelemetry": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["admitted_sessions", "admission_rejects", "reconnects", "drain_transitions", "media_drops", "media_packets", "media_bytes", "queue_delay_micros", "processing_delay_micros", "processing_samples", "pacing_delay_micros", "provider_errors", "input_rejected", "control_rtt_micros", "control_jitter_micros", "control_loss_ppm", "pending_reliable", "provider_state"],
+      "properties": {
+        "admitted_sessions": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "admission_rejects": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "reconnects": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "drain_transitions": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "media_drops": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "media_packets": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "media_bytes": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "queue_delay_micros": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "processing_delay_micros": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "processing_samples": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "pacing_delay_micros": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "provider_errors": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "input_rejected": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "control_rtt_micros": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "control_jitter_micros": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "control_loss_ppm": {"type": "integer", "minimum": 0, "maximum": 1000000},
+        "pending_reliable": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
+        "provider_state": {"type": "string", "enum": ["unknown", "starting", "ready", "disconnected", "terminating", "terminated", "cleanup_pending", "failed"]}
+      }
+    },
     "GatewayHeartbeat": {
       "type": "object",
       "additionalProperties": false,
-      "required": ["version", "gateway_id", "sequence", "observed_at", "active_connections", "egress_kbps", "state"],
+      "required": ["version", "gateway_id", "sequence", "observed_at", "active_connections", "egress_kbps", "state", "telemetry"],
       "properties": {
         "version": {"type": "string", "const": "1"},
         "gateway_id": {"type": "string", "minLength": 1, "maxLength": 128},
@@ -410,7 +441,8 @@
         "observed_at": {"type": "string", "format": "date-time", "maxLength": 64},
         "active_connections": {"type": "integer", "minimum": 0, "maximum": 1000000},
         "egress_kbps": {"type": "integer", "minimum": 0, "maximum": 1000000000},
-        "state": {"type": "string", "enum": ["ready", "draining", "offline"]}
+        "state": {"type": "string", "enum": ["ready", "draining", "offline"]},
+        "telemetry": {"$ref": "#/$defs/GatewayTelemetry"}
       }
     },
     "GatewayDrain": {
@@ -457,10 +489,23 @@
         "provider_identity": {"type": "string", "minLength": 1, "maxLength": 256}
       }
     },
+    "ProviderStreamPolicy": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": ["resolution_width", "resolution_height", "fps", "codec", "bitrate_kbps", "audio_enabled"],
+      "properties": {
+        "resolution_width": {"type": "integer", "minimum": 320, "maximum": 16384},
+        "resolution_height": {"type": "integer", "minimum": 200, "maximum": 8640},
+        "fps": {"type": "integer", "minimum": 1, "maximum": 240},
+        "codec": {"type": "string", "enum": ["H264", "HEVC", "AV1"]},
+        "bitrate_kbps": {"type": "integer", "minimum": 100, "maximum": 1000000},
+        "audio_enabled": {"type": "boolean"}
+      }
+    },
     "ProviderSessionWork": {
       "type": "object",
       "additionalProperties": false,
-      "required": ["version", "session_id", "gateway_id", "reconnect_sequence", "expires_at", "provider_profile", "provider_identity", "policy_version_id", "application_id", "client_id", "management_host", "management_port", "stream_host", "stream_port", "client_certificate_pem", "client_private_key_pem", "server_certificate_pem", "clipboard_policy", "provider_application_termination_allowed"],
+      "required": ["version", "session_id", "gateway_id", "reconnect_sequence", "expires_at", "provider_profile", "provider_identity", "policy_version_id", "stream_policy", "application_id", "client_id", "management_host", "management_port", "stream_host", "stream_port", "client_certificate_pem", "client_private_key_pem", "server_certificate_pem", "clipboard_policy", "provider_application_termination_allowed"],
       "properties": {
         "version": {"type": "string", "const": "1"},
         "session_id": {"type": "string", "minLength": 1, "maxLength": 128},
@@ -470,6 +515,7 @@
         "provider_profile": {"type": "string", "const": "apollo"},
         "provider_identity": {"type": "string", "minLength": 1, "maxLength": 256},
         "policy_version_id": {"type": "string", "minLength": 1, "maxLength": 128},
+        "stream_policy": {"$ref": "#/$defs/ProviderStreamPolicy"},
         "application_id": {"type": "string", "minLength": 1, "maxLength": 128},
         "client_id": {"type": "string", "minLength": 1, "maxLength": 128},
         "management_host": {"type": "string", "minLength": 1, "maxLength": 256},

tests/go/protocol_test.go

@@ -1,6 +1,7 @@
 package protocol_test
 
 import (
+	"reflect"
 	"strings"
 	"testing"
 
@@ -37,7 +38,7 @@ func TestGeneratedDecodersRejectMissingRequiredFieldsAndTrailingValues(t *testin
 }
 
 func TestGatewayContractsRejectUnknownVersionsAndFields(t *testing.T) {
-	registration := `{"version":"1","gateway_id":"gateway-1","instance_identity":"instance-1","certificate_identity":"cert-1","public_identity":"public-1","address":"gateway.test:443","provider_identity":"apollo-provider-1","protocol_min_version":1,"protocol_max_version":1,"connection_capacity":8,"bandwidth_capacity_kbps":100000,"features":["datagram.media"],"capabilities":{"transport":"quic","framing":"datagram-v1","media":"encoded","audio":"encoded","source_rate_control":"server","client_decode":"h264-opus"}}`
+	registration := `{"version":"1","gateway_id":"gateway-1","instance_identity":"instance-1","certificate_identity":"cert-1","public_identity":"public-1","address":"gateway.test:443","provider_identity":"apollo-provider-1","protocol_min_version":1,"protocol_max_version":1,"connection_capacity":8,"bandwidth_capacity_kbps":100000,"features":["datagram.media"],"capabilities":{"transport":"quic","framing":"datagram-v1","media":"encoded","audio":"encoded","source_rate_control":"server","client_decode":["h264-opus"]}}`
 	if _, err := protocol.DecodeGatewayRegistration([]byte(registration)); err != nil {
 		t.Fatalf("valid gateway registration rejected: %v", err)
 	}
@@ -56,31 +57,93 @@ func TestGatewayContractsRejectUnknownVersionsAndFields(t *testing.T) {
 }
 
 func TestGatewayRegistrationRejectsInvertedProtocolBounds(t *testing.T) {
-	registration := `{"version":"1","gateway_id":"gateway-1","instance_identity":"instance-1","certificate_identity":"cert-1","public_identity":"public-1","address":"gateway.test:443","provider_identity":"apollo-provider-1","protocol_min_version":2,"protocol_max_version":1,"connection_capacity":8,"bandwidth_capacity_kbps":100000,"features":["datagram.media"],"capabilities":{"transport":"quic","framing":"datagram-v1","media":"encoded","audio":"encoded","source_rate_control":"server","client_decode":"h264-opus"}}`
+	registration := `{"version":"1","gateway_id":"gateway-1","instance_identity":"instance-1","certificate_identity":"cert-1","public_identity":"public-1","address":"gateway.test:443","provider_identity":"apollo-provider-1","protocol_min_version":2,"protocol_max_version":1,"connection_capacity":8,"bandwidth_capacity_kbps":100000,"features":["datagram.media"],"capabilities":{"transport":"quic","framing":"datagram-v1","media":"encoded","audio":"encoded","source_rate_control":"server","client_decode":["h264-opus"]}}`
 	if _, err := protocol.DecodeGatewayRegistration([]byte(registration)); err == nil {
 		t.Fatal("DecodeGatewayRegistration accepted inverted protocol bounds")
 	}
 }
 
+func TestGatewayHeartbeatCarriesBoundedObservedTelemetry(t *testing.T) {
+	valid := `{"version":"1","gateway_id":"gateway-1","sequence":1,"observed_at":"2099-01-01T00:00:00Z","active_connections":1,"egress_kbps":64,"state":"ready","telemetry":{"admitted_sessions":2,"admission_rejects":3,"reconnects":4,"drain_transitions":5,"media_drops":6,"media_packets":7,"media_bytes":8000,"queue_delay_micros":9,"processing_delay_micros":10,"processing_samples":11,"pacing_delay_micros":12,"provider_errors":13,"input_rejected":14,"control_rtt_micros":15,"control_jitter_micros":16,"control_loss_ppm":17,"pending_reliable":18,"provider_state":"ready"}}`
+	if _, err := protocol.DecodeGatewayHeartbeat([]byte(valid)); err != nil {
+		t.Fatalf("valid gateway heartbeat rejected: %v", err)
+	}
+	for _, invalid := range []string{
+		strings.Replace(valid, `,"telemetry":{`, `,"session_id":"forbidden","telemetry":{`, 1),
+		strings.Replace(valid, `"control_loss_ppm":17`, `"control_loss_ppm":1000001`, 1),
+		strings.Replace(valid, `"provider_state":"ready"`, `"provider_state":"provider.example:47984"`, 1),
+	} {
+		if _, err := protocol.DecodeGatewayHeartbeat([]byte(invalid)); err == nil {
+			t.Fatalf("invalid gateway heartbeat accepted: %s", invalid)
+		}
+	}
+}
+
 func TestCapabilityIntersectionRejectsNoOverlap(t *testing.T) {
-	first := protocol.CapabilityProfile{Transport: "quic-tls13", Framing: "datagram-v1", Media: "encoded", Audio: "encoded", SourceRateControl: "server", ClientDecode: "h264-opus"}
+	first := protocol.CapabilityProfile{Transport: "quic-tls13", Framing: "datagram-v1", Media: "encoded", Audio: "encoded", SourceRateControl: "server", ClientDecode: []string{"h264-opus"}}
-	if got, err := protocol.IntersectCapabilityProfiles(first, first); err != nil || got != first {
+	if got, err := protocol.IntersectCapabilityProfiles(first, first); err != nil || !reflect.DeepEqual(got, first) {
 		t.Fatalf("IntersectCapabilityProfiles matching profiles = %+v, %v", got, err)
 	}
 	second := first
-	second.ClientDecode = "hevc-opus"
+	second.ClientDecode = []string{"hevc-opus"}
 	if _, err := protocol.IntersectCapabilityProfiles(first, second); err == nil {
 		t.Fatal("IntersectCapabilityProfiles accepted profiles without a common codec profile")
 	}
 }
 
+func TestCapabilityIntersectionSelectsRegisteredOrderedProfiles(t *testing.T) {
+	gateway := protocol.CapabilityProfile{
+		Transport: "quic-tls13", Framing: "datagram-v1", Media: "encoded", Audio: "encoded",
+		SourceRateControl: "server", ClientDecode: []string{"hevc-opus", "h264-opus"},
+	}
+	h264Client := gateway
+	h264Client.ClientDecode = []string{"h264-opus"}
+	selected, err := protocol.IntersectCapabilityProfiles(gateway, h264Client)
+	if err != nil || !reflect.DeepEqual(selected.ClientDecode, []string{"h264-opus"}) {
+		t.Fatalf("H.264 profile intersection = %+v, %v", selected, err)
+	}
+	hevcClient := gateway
+	hevcClient.ClientDecode = []string{"hevc-opus"}
+	selected, err = protocol.IntersectCapabilityProfiles(gateway, hevcClient)
+	if err != nil || !reflect.DeepEqual(selected.ClientDecode, []string{"hevc-opus"}) {
+		t.Fatalf("HEVC profile intersection = %+v, %v", selected, err)
+	}
+	noOverlap := gateway
+	noOverlap.ClientDecode = []string{"h264-opus"}
+	if _, err := protocol.IntersectCapabilityProfiles(noOverlap, hevcClient); err == nil {
+		t.Fatal("intersection accepted registered profiles without overlap")
+	}
+	for _, invalid := range [][]string{{"h264-hevc-opus"}, {"h264-opus", "h264-opus"}} {
+		profile := gateway
+		profile.ClientDecode = invalid
+		if err := profile.Validate(); err == nil {
+			t.Fatalf("CapabilityProfile accepted invalid registered profile set %q", invalid)
+		}
+	}
+}
+
+func TestCapabilityProfileRequiresRegisteredFraming(t *testing.T) {
+	valid := protocol.CapabilityProfile{
+		Transport: "quic-tls13", Framing: "datagram-v2", Media: "encoded",
+		Audio: "encoded", SourceRateControl: "server", ClientDecode: []string{"h264-opus"},
+	}
+	if err := valid.Validate(); err != nil {
+		t.Fatalf("registered datagram-v2 rejected: %v", err)
+	}
+	invalid := valid
+	invalid.Framing = "datagram-v3"
+	if err := invalid.Validate(); err == nil {
+		t.Fatal("unregistered framing accepted")
+	}
+}
+
 func TestTunnelAdmissionRequiresDeviceSignature(t *testing.T) {
 	request := protocol.TunnelAdmissionRequest{
 		Version: "1", SessionID: "session-1", GatewayID: "gateway-1", Audience: "versevdi-gateway",
 		Grant: "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_", ReconnectSequence: 0,
 		ClientNonce: "0123456789abcdef", Capabilities: protocol.CapabilityProfile{
 			Transport: "quic-tls13", Framing: "datagram-v1", Media: "encoded", Audio: "encoded",
-			SourceRateControl: "server", ClientDecode: "h264-opus",
+			SourceRateControl: "server", ClientDecode: []string{"h264-opus"},
 		},
 	}
 	if _, err := protocol.EncodeTunnelAdmissionRequest(request); err == nil {
@@ -94,17 +157,17 @@ func TestTunnelAdmissionTranscriptIsDomainSeparatedAndLengthDelimited(t *testing
 		Grant: strings.Repeat("g", 43), ReconnectSequence: 0, ClientNonce: strings.Repeat("n", 16),
 		DeviceSignature: strings.Repeat("s", 86), Capabilities: protocol.CapabilityProfile{
 			Transport: "quic-tls13", Framing: "datagram-v1", Media: "encoded", Audio: "encoded",
-			SourceRateControl: "server", ClientDecode: "h264-opus",
+			SourceRateControl: "server", ClientDecode: []string{"h264-opus"},
 		},
 	}
-	want := "versevdi/tunnel-admission/v17:session7:gateway8:audience43:" + strings.Repeat("g", 43) + "1:016:" + strings.Repeat("n", 16) + "10:quic-tls1311:datagram-v17:encoded7:encoded6:server9:h264-opus"
+	want := "versevdi/tunnel-admission/v17:session7:gateway8:audience43:" + strings.Repeat("g", 43) + "1:016:" + strings.Repeat("n", 16) + "10:quic-tls1311:datagram-v17:encoded7:encoded6:server1:19:h264-opus"
 	if got := string(request.DeviceAdmissionTranscript()); got != want {
 		t.Fatalf("DeviceAdmissionTranscript() = %q, want %q", got, want)
 	}
 }
 
 func TestSessionAuthorityRejectsProviderRoute(t *testing.T) {
-	valid := `{"version":"1","session_id":"session-1","gateway_id":"gateway-1","audience":"versevdi-gateway","reconnect_sequence":0,"expires_at":"2099-01-01T00:00:00Z","capabilities":{"transport":"quic","framing":"datagram-v1","media":"encoded","audio":"encoded","source_rate_control":"server","client_decode":"h264-opus"},"provider_profile":"apollo","provider_identity":"provider-1"}`
+	valid := `{"version":"1","session_id":"session-1","gateway_id":"gateway-1","audience":"versevdi-gateway","reconnect_sequence":0,"expires_at":"2099-01-01T00:00:00Z","capabilities":{"transport":"quic","framing":"datagram-v1","media":"encoded","audio":"encoded","source_rate_control":"server","client_decode":["h264-opus"]},"provider_profile":"apollo","provider_identity":"provider-1"}`
 	if _, err := protocol.DecodeSessionAuthority([]byte(valid)); err != nil {
 		t.Fatalf("valid session authority rejected: %v", err)
 	}
@@ -114,7 +177,7 @@ func TestSessionAuthorityRejectsProviderRoute(t *testing.T) {
 }
 
 func TestProviderSessionWorkIsStrictAndSessionBound(t *testing.T) {
-	valid := `{"version":"1","session_id":"session-1","gateway_id":"gateway-1","reconnect_sequence":0,"expires_at":"2099-01-01T00:00:00Z","provider_profile":"apollo","provider_identity":"provider-1","policy_version_id":"policy-1","application_id":"42","client_id":"paired-client-1","management_host":"apollo.test","management_port":47990,"stream_host":"apollo.test","stream_port":47984,"client_certificate_pem":"certificate","client_private_key_pem":"private-key","server_certificate_pem":"server-certificate","clipboard_policy":{"client_to_provider_enabled":false,"provider_to_client_enabled":false,"max_text_bytes":65536,"max_updates_per_minute":30},"provider_application_termination_allowed":false}`
+	valid := `{"version":"1","session_id":"session-1","gateway_id":"gateway-1","reconnect_sequence":0,"expires_at":"2099-01-01T00:00:00Z","provider_profile":"apollo","provider_identity":"provider-1","policy_version_id":"policy-1","stream_policy":{"resolution_width":2560,"resolution_height":1440,"fps":120,"codec":"HEVC","bitrate_kbps":40000,"audio_enabled":true},"application_id":"42","client_id":"paired-client-1","management_host":"apollo.test","management_port":47990,"stream_host":"apollo.test","stream_port":47984,"client_certificate_pem":"certificate","client_private_key_pem":"private-key","server_certificate_pem":"server-certificate","clipboard_policy":{"client_to_provider_enabled":false,"provider_to_client_enabled":false,"max_text_bytes":65536,"max_updates_per_minute":30},"provider_application_termination_allowed":false}`
 	if _, err := protocol.DecodeProviderSessionWork([]byte(valid)); err != nil {
 		t.Fatalf("valid provider work rejected: %v", err)
 	}
@@ -124,6 +187,16 @@ func TestProviderSessionWorkIsStrictAndSessionBound(t *testing.T) {
 	if _, err := protocol.DecodeProviderSessionWork([]byte(strings.Replace(valid, `,"clipboard_policy":{"client_to_provider_enabled":false,"provider_to_client_enabled":false,"max_text_bytes":65536,"max_updates_per_minute":30}`, "", 1))); err == nil {
 		t.Fatal("provider work accepted missing clipboard policy")
 	}
+	for _, invalid := range []string{
+		strings.Replace(valid, `,"stream_policy":{"resolution_width":2560,"resolution_height":1440,"fps":120,"codec":"HEVC","bitrate_kbps":40000,"audio_enabled":true}`, "", 1),
+		strings.Replace(valid, `"fps":120`, `"fps":241`, 1),
+		strings.Replace(valid, `"codec":"HEVC"`, `"codec":"VP9"`, 1),
+		strings.Replace(valid, `"audio_enabled":true`, `"audio_enabled":true,"unknown":false`, 1),
+	} {
+		if _, err := protocol.DecodeProviderSessionWork([]byte(invalid)); err == nil {
+			t.Fatalf("provider work accepted invalid stream policy: %s", invalid)
+		}
+	}
 }
 
 func TestGatewayClipboardAuditIsMetadataOnlyAndStrict(t *testing.T) {

tools/check_ci_actions.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python3
+"""Require immutable commits for third-party Gitea workflow actions."""
+
+from __future__ import annotations
+
+import pathlib
+import re
+
+
+ROOT = pathlib.Path(__file__).resolve().parents[1]
+USE = re.compile(r"^\s*-\s+uses:\s+([^@\s]+)@([^\s#]+)", re.MULTILINE)
+
+
+for workflow in sorted((ROOT / ".gitea/workflows").glob("*.y*ml")):
+    for action, revision in USE.findall(workflow.read_text(encoding="utf-8")):
+        if not action.startswith("./") and not re.fullmatch(r"[0-9a-f]{40}", revision):
+            raise SystemExit(f"{workflow.relative_to(ROOT)}: mutable action {action}@{revision}")
+
+print("Protocol CI action references are immutable")

tools/check_scope.py

@@ -87,6 +87,7 @@ def check_text_boundaries() -> None:
         ROOT / "openapi/control-v1.yaml",
         ROOT / "proto/versevdi/control/v1/control.proto",
         ROOT / "frames/datagram-v1.md",
+        ROOT / "frames/datagram-v2.md",
         ROOT / "frames/registry.json",
         ROOT / "registries/features.json",
         ROOT / "registries/datagrams.json",

tools/generate.py

@@ -149,7 +149,13 @@ def go_validation(definition: dict[str, Any]) -> list[str]:
                 lines.append(f"\tif len(v.{field}) < {prop['minItems']} {{ violations = append(violations, FieldViolation{{Field: \"{prop_name}\", Code: \"min_items\"}}) }}")
             if "maxItems" in prop:
                 lines.append(f"\tif len(v.{field}) > {prop['maxItems']} {{ violations = append(violations, FieldViolation{{Field: \"{prop_name}\", Code: \"max_items\"}}) }}")
-            item_ref = ref_name(prop.get("items", {}))
+            items = prop.get("items", {})
+            if "enum" in items:
+                allowed = " || ".join(f'item == "{value}"' for value in items["enum"])
+                lines.append(f"\tfor _, item := range v.{field} {{ if !({allowed}) {{ violations = append(violations, FieldViolation{{Field: \"{prop_name}\", Code: \"invalid_item\"}}) }} }}")
+            if prop.get("uniqueItems") and items.get("type") == "string":
+                lines.append(f"\tfor index, item := range v.{field} {{ for prior := 0; prior < index; prior++ {{ if item == v.{field}[prior] {{ violations = append(violations, FieldViolation{{Field: \"{prop_name}\", Code: \"duplicate_item\"}}) }} }} }}")
+            item_ref = ref_name(items)
             if item_ref:
                 lines.append(f"\tfor index := range v.{field} {{ if err := v.{field}[index].Validate(); err != nil {{ violations = append(violations, FieldViolation{{Field: fmt.Sprintf(\"{prop_name}[%d]\", index), Code: \"invalid_item\"}}) }} }}")
         reference = ref_name(prop)
@@ -254,16 +260,23 @@ def generate_go(defs: dict[str, dict[str, Any]], schema_hash: str, version: str,
         "\tif len(profiles) == 0 { return CapabilityProfile{}, ErrNoCapabilityOverlap }",
         "\tselected := profiles[0]",
         "\tif err := selected.Validate(); err != nil { return CapabilityProfile{}, ErrNoCapabilityOverlap }",
+        "\tcommon := append([]string(nil), selected.ClientDecode...)",
         "\tfor _, profile := range profiles[1:] {",
-        "\t\tif err := profile.Validate(); err != nil || profile != selected { return CapabilityProfile{}, ErrNoCapabilityOverlap }",
+        "\t\tif err := profile.Validate(); err != nil || profile.Transport != selected.Transport || profile.Framing != selected.Framing || profile.Media != selected.Media || profile.Audio != selected.Audio || profile.SourceRateControl != selected.SourceRateControl { return CapabilityProfile{}, ErrNoCapabilityOverlap }",
+        "\t\tnext := common[:0]",
+        "\t\tfor _, candidate := range common { for _, offered := range profile.ClientDecode { if candidate == offered { next = append(next, candidate); break } } }",
+        "\t\tcommon = next",
+        "\t\tif len(common) == 0 { return CapabilityProfile{}, ErrNoCapabilityOverlap }",
         "\t}",
+        "\tselected.ClientDecode = common",
         "\treturn selected, nil",
         "}",
         "",
     ])
     out.extend([
         "func (v TunnelAdmissionRequest) DeviceAdmissionTranscript() []byte {",
-        "\tfields := []string{v.SessionID, v.GatewayID, v.Audience, v.Grant, fmt.Sprintf(\"%d\", v.ReconnectSequence), v.ClientNonce, v.Capabilities.Transport, v.Capabilities.Framing, v.Capabilities.Media, v.Capabilities.Audio, v.Capabilities.SourceRateControl, v.Capabilities.ClientDecode}",
+        "\tfields := []string{v.SessionID, v.GatewayID, v.Audience, v.Grant, fmt.Sprintf(\"%d\", v.ReconnectSequence), v.ClientNonce, v.Capabilities.Transport, v.Capabilities.Framing, v.Capabilities.Media, v.Capabilities.Audio, v.Capabilities.SourceRateControl, fmt.Sprintf(\"%d\", len(v.Capabilities.ClientDecode))}",
+        "\tfields = append(fields, v.Capabilities.ClientDecode...)",
         "\tvar transcript strings.Builder",
         "\ttranscript.WriteString(\"versevdi/tunnel-admission/v1\")",
         "\tfor _, field := range fields { fmt.Fprintf(&transcript, \"%d:%s\", len(field), field) }",
@@ -346,7 +359,13 @@ def rust_validation(definition: dict[str, Any]) -> list[str]:
                 lines.append(f"        {prefix}if {value}.len() < {prop['minItems']} {{ return Err(ValidationError::new(\"{prop_name}\", \"min_items\")); }}")
             if "maxItems" in prop:
                 lines.append(f"        {prefix}if {value}.len() > {prop['maxItems']} {{ return Err(ValidationError::new(\"{prop_name}\", \"max_items\")); }}")
-            item_ref = ref_name(prop.get("items", {}))
+            items = prop.get("items", {})
+            if "enum" in items:
+                allowed = " && ".join(f'item != \"{item}\"' for item in items["enum"])
+                lines.append(f"        {prefix}for item in {value}.iter() {{ if {allowed} {{ return Err(ValidationError::new(\"{prop_name}\", \"invalid_item\")); }} }}")
+            if prop.get("uniqueItems") and items.get("type") == "string":
+                lines.append(f"        {prefix}for (index, item) in {value}.iter().enumerate() {{ if {value}[..index].contains(item) {{ return Err(ValidationError::new(\"{prop_name}\", \"duplicate_item\")); }} }}")
+            item_ref = ref_name(items)
             if item_ref:
                 lines.append(f"        {prefix}for item in {value}.iter() {{ item.validate().map_err(|_| ValidationError::new(\"{prop_name}\", \"invalid_item\"))?; }}")
         reference = ref_name(prop)
@@ -440,7 +459,9 @@ def generate_rust(defs: dict[str, dict[str, Any]], schema_hash: str, compatibili
             out.extend([
                 "    pub fn device_admission_transcript(&self) -> Vec<u8> {",
                 "        let reconnect_sequence = self.reconnectSequence.to_string();",
-                "        let fields = [&self.sessionId, &self.gatewayId, &self.audience, &self.grant, &reconnect_sequence, &self.clientNonce, &self.capabilities.transport, &self.capabilities.framing, &self.capabilities.media, &self.capabilities.audio, &self.capabilities.sourceRateControl, &self.capabilities.clientDecode];",
+                "        let client_decode_count = self.capabilities.clientDecode.len().to_string();",
+                "        let mut fields = vec![self.sessionId.as_str(), self.gatewayId.as_str(), self.audience.as_str(), self.grant.as_str(), reconnect_sequence.as_str(), self.clientNonce.as_str(), self.capabilities.transport.as_str(), self.capabilities.framing.as_str(), self.capabilities.media.as_str(), self.capabilities.audio.as_str(), self.capabilities.sourceRateControl.as_str(), client_decode_count.as_str()];",
+                "        fields.extend(self.capabilities.clientDecode.iter().map(String::as_str));",
                 "        let mut transcript = String::from(\"versevdi/tunnel-admission/v1\");",
                 "        for field in fields { transcript.push_str(&format!(\"{}:{}\", field.as_bytes().len(), field)); }",
                 "        transcript.into_bytes()",
@@ -449,11 +470,13 @@ def generate_rust(defs: dict[str, dict[str, Any]], schema_hash: str, compatibili
         out.extend(["}", ""])
     out.extend([
         "pub fn intersect_capability_profiles(profiles: &[CapabilityProfile]) -> Result<CapabilityProfile, ValidationError> {",
-        "    let selected = profiles.first().ok_or_else(|| ValidationError::new(\"capabilities\", \"no_overlap\"))?.clone();",
+        "    let mut selected = profiles.first().ok_or_else(|| ValidationError::new(\"capabilities\", \"no_overlap\"))?.clone();",
         "    selected.validate().map_err(|_| ValidationError::new(\"capabilities\", \"no_overlap\"))?;",
         "    for profile in &profiles[1..] {",
         "        profile.validate().map_err(|_| ValidationError::new(\"capabilities\", \"no_overlap\"))?;",
-        "        if profile != &selected { return Err(ValidationError::new(\"capabilities\", \"no_overlap\")); }",
+        "        if profile.transport != selected.transport || profile.framing != selected.framing || profile.media != selected.media || profile.audio != selected.audio || profile.sourceRateControl != selected.sourceRateControl { return Err(ValidationError::new(\"capabilities\", \"no_overlap\")); }",
+        "        selected.clientDecode.retain(|candidate| profile.clientDecode.contains(candidate));",
+        "        if selected.clientDecode.is_empty() { return Err(ValidationError::new(\"capabilities\", \"no_overlap\")); }",
         "    }",
         "    Ok(selected)",
         "}",
@@ -502,7 +525,13 @@ def swift_validation(definition: dict[str, Any]) -> list[str]:
                 lines.append(f"        {prefix}if {value}.count < {prop['minItems']} {{ throw ContractValidationError(field: \"{prop_name}\", code: \"min_items\") }}")
             if "maxItems" in prop:
                 lines.append(f"        {prefix}if {value}.count > {prop['maxItems']} {{ throw ContractValidationError(field: \"{prop_name}\", code: \"max_items\") }}")
-            item_ref = ref_name(prop.get("items", {}))
+            items = prop.get("items", {})
+            if "enum" in items:
+                allowed = ", ".join(f'\"{item}\"' for item in items["enum"])
+                lines.append(f"        {prefix}for item in {value} where ![{allowed}].contains(item) {{ throw ContractValidationError(field: \"{prop_name}\", code: \"invalid_item\") }}")
+            if prop.get("uniqueItems") and items.get("type") == "string":
+                lines.append(f"        {prefix}if Set({value}).count != {value}.count {{ throw ContractValidationError(field: \"{prop_name}\", code: \"duplicate_item\") }}")
+            item_ref = ref_name(items)
             if item_ref:
                 lines.append(f"        {prefix}for item in {value} {{ try item.validate() }}")
         reference = ref_name(prop)
@@ -583,7 +612,8 @@ def generate_swift(defs: dict[str, dict[str, Any]], schema_hash: str, compatibil
     out.extend([
         "public extension TunnelAdmissionRequest {",
         "    func deviceAdmissionTranscript() -> Data {",
-        "        let fields = [sessionId, gatewayId, audience, grant, String(reconnectSequence), clientNonce, capabilities.transport, capabilities.framing, capabilities.media, capabilities.audio, capabilities.sourceRateControl, capabilities.clientDecode]",
+        "        var fields = [sessionId, gatewayId, audience, grant, String(reconnectSequence), clientNonce, capabilities.transport, capabilities.framing, capabilities.media, capabilities.audio, capabilities.sourceRateControl, String(capabilities.clientDecode.count)]",
+        "        fields.append(contentsOf: capabilities.clientDecode)",
         "        var transcript = \"versevdi/tunnel-admission/v1\"",
         "        for field in fields { transcript += \"\\(field.utf8.count):\\(field)\" }",
         "        return Data(transcript.utf8)",
@@ -594,11 +624,14 @@ def generate_swift(defs: dict[str, dict[str, Any]], schema_hash: str, compatibil
         "    static func intersection(_ profiles: [CapabilityProfile]) throws -> CapabilityProfile {",
         "        guard let selected = profiles.first else { throw ContractValidationError(field: \"capabilities\", code: \"no_overlap\") }",
         "        try selected.validate()",
+        "        var common = selected.clientDecode",
         "        for profile in profiles.dropFirst() {",
         "            try profile.validate()",
-        "            if profile != selected { throw ContractValidationError(field: \"capabilities\", code: \"no_overlap\") }",
+        "            if profile.transport != selected.transport || profile.framing != selected.framing || profile.media != selected.media || profile.audio != selected.audio || profile.sourceRateControl != selected.sourceRateControl { throw ContractValidationError(field: \"capabilities\", code: \"no_overlap\") }",
+        "            common = common.filter { profile.clientDecode.contains($0) }",
+        "            if common.isEmpty { throw ContractValidationError(field: \"capabilities\", code: \"no_overlap\") }",
         "        }",
-        "        return selected",
+        "        return try CapabilityProfile(transport: selected.transport, framing: selected.framing, media: selected.media, audio: selected.audio, sourceRateControl: selected.sourceRateControl, clientDecode: common)",
         "    }",
         "}",
         "",

tools/go-conformance/main.go

@@ -14,11 +14,6 @@ import (
 	protocol "git.sechmachine.io.vn/sechmachine/VerseVDI-Protocol/gen/go/protocol"
 )
 
-const (
-	datagramHeaderBytes = 21
-	maximumFrameBytes   = 65536
-)
-
 func main() {
 	entries, err := os.ReadDir("fixtures/conformance")
 	if err != nil {
@@ -270,12 +265,16 @@ func classifyGatewayFeedback(encoded string) string {
 				return "valid"
 			}
 			return "invalid:field"
+		case 3:
+			if len(body) == 0 {
+				return "valid"
+			}
 		default:
 			return "invalid:type"
 		}
 		return "invalid:length"
 	}
-	if kind == 1 || kind == 2 {
+	if kind == 1 || kind == 2 || kind == 3 {
 		return "invalid:direction"
 	}
 	switch kind {
@@ -316,16 +315,24 @@ func classifyDatagram(encoded string) string {
 	if err != nil {
 		return "invalid:hex"
 	}
-	if len(raw) < datagramHeaderBytes {
+	if len(raw) < 3 {
 		return "invalid:truncated"
 	}
 	if string(raw[:2]) != "VD" {
 		return "invalid:magic"
 	}
-	if raw[2] != 1 {
+	if raw[2] != 1 && raw[2] != 2 {
 		return "invalid:unsupported_version"
 	}
+	headerBytes := 21
 	limits := map[byte]int{1: 1024, 2: 2048, 3: 65515, 10: 1179, 11: 1179, 12: 1179}
+	if raw[2] == 2 {
+		headerBytes = 23
+		limits = map[byte]int{10: 1177, 11: 1177}
+	}
+	if len(raw) < headerBytes {
+		return "invalid:truncated"
+	}
 	limit, ok := limits[raw[3]]
 	if !ok {
 		return "invalid:unknown_channel"
@@ -333,17 +340,27 @@ func classifyDatagram(encoded string) string {
 	if raw[4] != 0 {
 		return "invalid:flags"
 	}
-	if raw[18] == 0 || raw[17] >= raw[18] {
+	fragmentIndex, fragmentCount := int(raw[17]), int(raw[18])
+	payloadOffset := 19
+	if raw[2] == 2 {
+		fragmentIndex = int(raw[17])<<8 | int(raw[18])
+		fragmentCount = int(raw[19])<<8 | int(raw[20])
+		payloadOffset = 21
+		if fragmentCount > 891 {
+			return "invalid:fragment_limit"
+		}
+	}
+	if fragmentCount == 0 || fragmentIndex >= fragmentCount {
 		return "invalid:fragment"
 	}
-	payloadLength := int(raw[19])<<8 | int(raw[20])
+	payloadLength := int(raw[payloadOffset])<<8 | int(raw[payloadOffset+1])
 	if payloadLength > limit {
 		return "invalid:payload_limit"
 	}
-	if len(raw) != datagramHeaderBytes+payloadLength {
+	if len(raw) != headerBytes+payloadLength {
 		return "invalid:length_mismatch"
 	}
-	if len(raw) > maximumFrameBytes {
+	if raw[2] == 1 && len(raw) > 65536 || raw[2] == 2 && len(raw) > 1200 {
 		return "invalid:frame_limit"
 	}
 	return "valid"

tools/native_conformance.rs

@@ -143,10 +143,12 @@ fn classify_gateway_feedback(encoded: &str) -> &'static str {
             1 => "invalid:length",
             2 if valid_fec_status(body) => "valid",
             2 => "invalid:field",
+            3 if body.is_empty() => "valid",
+            3 => "invalid:length",
             _ => "invalid:type",
         };
     }
-    if kind == 1 || kind == 2 {
+    if kind == 1 || kind == 2 || kind == 3 {
         return "invalid:direction";
     }
     match kind {
@@ -187,36 +189,50 @@ fn classify_datagram(encoded: &str) -> &'static str {
         Some(raw) => raw,
         None => return "invalid:hex",
     };
-    if raw.len() < 21 {
+    if raw.len() < 3 {
         return "invalid:truncated";
     }
     if raw[0..2] != *b"VD" {
         return "invalid:magic";
     }
-    if raw[2] != 1 {
+    if raw[2] != 1 && raw[2] != 2 {
         return "invalid:unsupported_version";
     }
-    let limit = match raw[3] {
+    let header_bytes = if raw[2] == 1 { 21 } else { 23 };
-        1 => 1024,
+    if raw.len() < header_bytes {
-        2 => 2048,
+        return "invalid:truncated";
-        3 => 65515,
+    }
-        10 | 11 | 12 => 1179,
+    let limit = match (raw[2], raw[3]) {
+        (1, 1) => 1024,
+        (1, 2) => 2048,
+        (1, 3) => 65515,
+        (1, 10 | 11 | 12) => 1179,
+        (2, 10 | 11) => 1177,
         _ => return "invalid:unknown_channel",
     };
     if raw[4] != 0 {
         return "invalid:flags";
     }
-    if raw[18] == 0 || raw[17] >= raw[18] {
+    let (fragment_index, fragment_count, payload_offset) = if raw[2] == 1 {
+        (raw[17] as usize, raw[18] as usize, 19)
+    } else {
+        let count = ((raw[19] as usize) << 8) | raw[20] as usize;
+        if count > 891 {
+            return "invalid:fragment_limit";
+        }
+        ((((raw[17] as usize) << 8) | raw[18] as usize), count, 21)
+    };
+    if fragment_count == 0 || fragment_index >= fragment_count {
         return "invalid:fragment";
     }
-    let payload_length = ((raw[19] as usize) << 8) | raw[20] as usize;
+    let payload_length = ((raw[payload_offset] as usize) << 8) | raw[payload_offset + 1] as usize;
     if payload_length > limit {
         return "invalid:payload_limit";
     }
-    if raw.len() != 21 + payload_length {
+    if raw.len() != header_bytes + payload_length {
         return "invalid:length_mismatch";
     }
-    if raw.len() > 65536 {
+    if raw[2] == 1 && raw.len() > 65536 || raw[2] == 2 && raw.len() > 1200 {
         return "invalid:frame_limit";
     }
     "valid"

tools/native_conformance.swift

@@ -101,10 +101,11 @@ func classifyGatewayFeedback(_ encoded: String) -> String {
         case 1: return body.isEmpty ? "valid" : "invalid:length"
         case 2:
             return validFECStatus(body) ? "valid" : "invalid:field"
+        case 3: return body.isEmpty ? "valid" : "invalid:length"
         default: return "invalid:type"
         }
     }
-    if kind == 1 || kind == 2 { return "invalid:direction" }
+    if kind == 1 || kind == 2 || kind == 3 { return "invalid:direction" }
     switch kind {
     case 0x10: return body.count == 4 ? "valid" : "invalid:length"
     case 0x11:
@@ -128,23 +129,30 @@ func validFECStatus(_ body: [UInt8]) -> Bool {
 
 func classifyDatagram(_ encoded: String) -> String {
     guard let raw = decodeHex(encoded) else { return "invalid:hex" }
-    guard raw.count >= 21 else { return "invalid:truncated" }
+    guard raw.count >= 3 else { return "invalid:truncated" }
     guard raw[0] == 0x56 && raw[1] == 0x44 else { return "invalid:magic" }
-    guard raw[2] == 1 else { return "invalid:unsupported_version" }
+    guard raw[2] == 1 || raw[2] == 2 else { return "invalid:unsupported_version" }
+    let headerBytes = raw[2] == 1 ? 21 : 23
+    guard raw.count >= headerBytes else { return "invalid:truncated" }
     let limit: Int
-    switch raw[3] {
+    switch (raw[2], raw[3]) {
-    case 1: limit = 1024
+    case (1, 1): limit = 1024
-    case 2: limit = 2048
+    case (1, 2): limit = 2048
-    case 3: limit = 65515
+    case (1, 3): limit = 65515
-    case 10, 11, 12: limit = 1179
+    case (1, 10), (1, 11), (1, 12): limit = 1179
+    case (2, 10), (2, 11): limit = 1177
     default: return "invalid:unknown_channel"
     }
     guard raw[4] == 0 else { return "invalid:flags" }
-    guard raw[18] > 0 && raw[17] < raw[18] else { return "invalid:fragment" }
+    let fragmentIndex = raw[2] == 1 ? Int(raw[17]) : Int(raw[17]) * 256 + Int(raw[18])
-    let payloadLength = Int(raw[19]) * 256 + Int(raw[20])
+    let fragmentCount = raw[2] == 1 ? Int(raw[18]) : Int(raw[19]) * 256 + Int(raw[20])
+    if raw[2] == 2 && fragmentCount > 891 { return "invalid:fragment_limit" }
+    guard fragmentCount > 0 && fragmentIndex < fragmentCount else { return "invalid:fragment" }
+    let payloadOffset = raw[2] == 1 ? 19 : 21
+    let payloadLength = Int(raw[payloadOffset]) * 256 + Int(raw[payloadOffset + 1])
     guard payloadLength <= limit else { return "invalid:payload_limit" }
-    guard raw.count == 21 + payloadLength else { return "invalid:length_mismatch" }
+    guard raw.count == headerBytes + payloadLength else { return "invalid:length_mismatch" }
-    guard raw.count <= 65536 else { return "invalid:frame_limit" }
+    guard raw[2] == 1 ? raw.count <= 65536 : raw.count <= 1200 else { return "invalid:frame_limit" }
     return "valid"
 }
 

tools/test_check_scope.py

@@ -15,6 +15,7 @@ TEXT_PATHS = (
     "proto/versevdi/control/v1/control.proto",
     "proto/versevdi/tunnel/v1/tunnel.proto",
     "frames/datagram-v1.md",
+    "frames/datagram-v2.md",
     "frames/registry.json",
     "registries/features.json",
     "registries/datagrams.json",

tools/test_generated_contracts.py

@@ -33,27 +33,45 @@ def main() -> int:
 
 let capability = try CapabilityProfile(
     transport: "quic-tls13", framing: "datagram-v1", media: "encoded",
-    audio: "encoded", sourceRateControl: "server", clientDecode: "h264-opus"
+    audio: "encoded", sourceRateControl: "server", clientDecode: ["h264-opus"]
 )
+_ = try CapabilityProfile(
+    transport: "quic-tls13", framing: "datagram-v2", media: "encoded",
+    audio: "encoded", sourceRateControl: "server", clientDecode: ["h264-opus"]
+)
+do {
+    _ = try CapabilityProfile(
+        transport: "quic-tls13", framing: "datagram-v3", media: "encoded",
+        audio: "encoded", sourceRateControl: "server", clientDecode: ["h264-opus"]
+    )
+    fatalError("unregistered framing was accepted")
+} catch { }
 let request = try TunnelAdmissionRequest(
     version: "1", sessionId: "session", gatewayId: "gateway", audience: "audience",
     grant: String(repeating: "g", count: 43), reconnectSequence: 0,
     clientNonce: String(repeating: "n", count: 16), deviceSignature: String(repeating: "s", count: 86), capabilities: capability
 )
 _ = request
-let transcript = "versevdi/tunnel-admission/v17:session7:gateway8:audience43:" + String(repeating: "g", count: 43) + "1:016:" + String(repeating: "n", count: 16) + "10:quic-tls1311:datagram-v17:encoded7:encoded6:server9:h264-opus"
+let transcript = "versevdi/tunnel-admission/v17:session7:gateway8:audience43:" + String(repeating: "g", count: 43) + "1:016:" + String(repeating: "n", count: 16) + "10:quic-tls1311:datagram-v17:encoded7:encoded6:server1:19:h264-opus"
 guard String(data: request.deviceAdmissionTranscript(), encoding: .utf8) == transcript else {
     fatalError("unexpected device admission transcript")
 }
 let incompatible = try CapabilityProfile(
     transport: "quic-tls13", framing: "datagram-v1", media: "encoded",
-    audio: "encoded", sourceRateControl: "server", clientDecode: "hevc-opus"
+    audio: "encoded", sourceRateControl: "server", clientDecode: ["hevc-opus"]
+)
+let gatewayCapability = try CapabilityProfile(
+    transport: "quic-tls13", framing: "datagram-v1", media: "encoded",
+    audio: "encoded", sourceRateControl: "server", clientDecode: ["hevc-opus", "h264-opus"]
 )
 do {
     guard try CapabilityProfile.intersection([capability, capability]) == capability else {
         fatalError("matching capability profiles did not intersect")
     }
 } catch { fatalError("matching capability profiles did not intersect") }
+guard try CapabilityProfile.intersection([gatewayCapability, capability]).clientDecode == ["h264-opus"] else {
+    fatalError("ordered registered profile intersection changed")
+}
 do {
     _ = try CapabilityProfile.intersection([capability, incompatible])
     fatalError("profiles without overlap were accepted")
@@ -85,6 +103,41 @@ do {
     )
     fatalError("invalid allocation bounds were accepted")
 } catch { }
+let streamPolicy = try ProviderStreamPolicy(
+    resolutionWidth: 2560, resolutionHeight: 1440, fps: 120,
+    codec: "HEVC", bitrateKbps: 40000, audioEnabled: true
+)
+guard streamPolicy.codec == "HEVC" else { fatalError("stream policy changed") }
+for invalid in [
+    { try ProviderStreamPolicy(resolutionWidth: 319, resolutionHeight: 1440, fps: 120, codec: "HEVC", bitrateKbps: 40000, audioEnabled: true) },
+    { try ProviderStreamPolicy(resolutionWidth: 2560, resolutionHeight: 1440, fps: 241, codec: "HEVC", bitrateKbps: 40000, audioEnabled: true) },
+    { try ProviderStreamPolicy(resolutionWidth: 2560, resolutionHeight: 1440, fps: 120, codec: "VP9", bitrateKbps: 40000, audioEnabled: true) },
+] {
+    do {
+        _ = try invalid()
+        fatalError("invalid stream policy was accepted")
+    } catch { }
+}
+let telemetry = try GatewayTelemetry(
+    admittedSessions: 1, admissionRejects: 2, reconnects: 3, drainTransitions: 4,
+    mediaDrops: 5, mediaPackets: 6, mediaBytes: 7, queueDelayMicros: 8,
+    processingDelayMicros: 9, processingSamples: 10, pacingDelayMicros: 11,
+    providerErrors: 12, inputRejected: 13, controlRttMicros: 14,
+    controlJitterMicros: 15, controlLossPpm: 16, pendingReliable: 17,
+    providerState: "ready"
+)
+guard telemetry.mediaBytes == 7 else { fatalError("gateway telemetry changed") }
+do {
+    _ = try GatewayTelemetry(
+        admittedSessions: 1, admissionRejects: 2, reconnects: 3, drainTransitions: 4,
+        mediaDrops: 5, mediaPackets: 6, mediaBytes: 7, queueDelayMicros: 8,
+        processingDelayMicros: 9, processingSamples: 10, pacingDelayMicros: 11,
+        providerErrors: 12, inputRejected: 13, controlRttMicros: 14,
+        controlJitterMicros: 15, controlLossPpm: 1000001, pendingReliable: 17,
+        providerState: "ready"
+    )
+    fatalError("invalid gateway telemetry was accepted")
+} catch { }
 for text in [
     String(repeating: "a", count: 65536),
     String(repeating: "é", count: 32768),
@@ -118,15 +171,23 @@ do {
 fn main() {
     let capabilities = CapabilityProfile::new(
         "quic-tls13".into(), "datagram-v1".into(), "encoded".into(),
-        "encoded".into(), "server".into(), "h264-opus".into(),
+        "encoded".into(), "server".into(), vec!["h264-opus".into()],
     ).unwrap();
+    assert!(CapabilityProfile::new(
+        "quic-tls13".into(), "datagram-v2".into(), "encoded".into(),
+        "encoded".into(), "server".into(), vec!["h264-opus".into()],
+    ).is_ok());
+    assert!(CapabilityProfile::new(
+        "quic-tls13".into(), "datagram-v3".into(), "encoded".into(),
+        "encoded".into(), "server".into(), vec!["h264-opus".into()],
+    ).is_err());
     let request = TunnelAdmissionRequest::new(
         "1".into(), "session".into(), "gateway".into(), "audience".into(),
         "g".repeat(43), 0, "n".repeat(16), "s".repeat(86), capabilities.clone(),
     ).unwrap();
     let transcript = "versevdi/tunnel-admission/v17:session7:gateway8:audience43:".to_string()
         + &"g".repeat(43) + "1:016:" + &"n".repeat(16)
-        + "10:quic-tls1311:datagram-v17:encoded7:encoded6:server9:h264-opus";
+        + "10:quic-tls1311:datagram-v17:encoded7:encoded6:server1:19:h264-opus";
     assert_eq!(request.device_admission_transcript(), transcript.into_bytes());
     assert!(TunnelAdmissionRequest::new(
         "2".into(), "session".into(), "gateway".into(), "audience".into(),
@@ -143,12 +204,41 @@ fn main() {
     assert!(intersect_capability_profiles(&[capabilities.clone(), capabilities.clone()]).is_ok());
     let incompatible = CapabilityProfile::new(
         "quic-tls13".into(), "datagram-v1".into(), "encoded".into(),
-        "encoded".into(), "server".into(), "hevc-opus".into(),
+        "encoded".into(), "server".into(), vec!["hevc-opus".into()],
     ).unwrap();
+    let gateway_capability = CapabilityProfile::new(
+        "quic-tls13".into(), "datagram-v1".into(), "encoded".into(),
+        "encoded".into(), "server".into(), vec!["hevc-opus".into(), "h264-opus".into()],
+    ).unwrap();
+    assert_eq!(
+        intersect_capability_profiles(&[gateway_capability, capabilities.clone()]).unwrap().clientDecode(),
+        &vec!["h264-opus".to_string()],
+    );
     assert!(intersect_capability_profiles(&[capabilities, incompatible]).is_err());
     assert!(AllocationPolicy::new(
         100, 50, 25, "standard".into(), "audience".into(), "verse".into(), 1, 60, 300,
     ).is_err());
+    assert!(ProviderStreamPolicy::new(
+        2560, 1440, 120, "HEVC".into(), 40000, true,
+    ).is_ok());
+    assert!(ProviderStreamPolicy::new(
+        319, 1440, 120, "HEVC".into(), 40000, true,
+    ).is_err());
+    assert!(ProviderStreamPolicy::new(
+        2560, 1440, 241, "HEVC".into(), 40000, true,
+    ).is_err());
+    assert!(ProviderStreamPolicy::new(
+        2560, 1440, 120, "VP9".into(), 40000, true,
+    ).is_err());
+    assert!(GatewayTelemetry::new(
+        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, "ready".into(),
+    ).is_ok());
+    assert!(GatewayTelemetry::new(
+        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 1000001, 17, "ready".into(),
+    ).is_err());
+    assert!(GatewayTelemetry::new(
+        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, "provider.example:47984".into(),
+    ).is_err());
     for text in [
         "a".repeat(65536),
         "é".repeat(32768),

tools/validate.py

@@ -31,9 +31,10 @@ def main() -> int:
         value = json.loads((ROOT / registry).read_text(encoding="utf-8"))
         entries = value.get("features", value.get("datagrams"))
         assert entries and len({entry["id"] for entry in entries}) == len(entries)
+        maximum_bound = 1_048_576 if registry.endswith("datagrams.json") else 65_536
         for entry in entries:
             maximum = entry.get("max_frame_bytes", entry.get("max_payload_bytes"))
-            assert isinstance(maximum, int) and 1 <= maximum <= 65536
+            assert isinstance(maximum, int) and 1 <= maximum <= maximum_bound
 
     manifest = json.loads((ROOT / "fixtures/valid/manifest.json").read_text(encoding="utf-8"))
     assert set(manifest).issubset(set(defs["ConnectionManifest"]["properties"]))

tools/validate_frames.py

@@ -7,47 +7,58 @@ import binascii
 import pathlib
 
 ROOT = pathlib.Path(__file__).resolve().parents[1]
-HEADER_BYTES = 21
+V1_CHANNEL_LIMITS = {1: 1024, 2: 2048, 3: 65515, 10: 1179, 11: 1179, 12: 1179}
-MAX_FRAME_BYTES = 65536
+V2_CHANNEL_LIMITS = {10: 1177, 11: 1177}
-CHANNEL_LIMITS = {1: 1024, 2: 2048, 3: 65515, 10: 1179, 11: 1179, 12: 1179}
 
 
 def classify(raw: bytes) -> str:
-    if len(raw) < HEADER_BYTES:
+    if len(raw) < 3:
         return "invalid:truncated"
     if raw[:2] != b"VD":
         return "invalid:magic"
-    if raw[2] != 1:
+    if raw[2] not in (1, 2):
         return "invalid:unsupported_version"
-    if raw[3] not in CHANNEL_LIMITS:
+    header_bytes = 21 if raw[2] == 1 else 23
+    if len(raw) < header_bytes:
+        return "invalid:truncated"
+    limits = V1_CHANNEL_LIMITS if raw[2] == 1 else V2_CHANNEL_LIMITS
+    if raw[3] not in limits:
         return "invalid:unknown_channel"
     if raw[4] != 0:
         return "invalid:flags"
+    if raw[2] == 1:
         fragment_index, fragment_count = raw[17], raw[18]
+        payload_length = int.from_bytes(raw[19:21], "big")
+    else:
+        fragment_index = int.from_bytes(raw[17:19], "big")
+        fragment_count = int.from_bytes(raw[19:21], "big")
+        payload_length = int.from_bytes(raw[21:23], "big")
+        if fragment_count > 891:
+            return "invalid:fragment_limit"
     if fragment_count == 0 or fragment_index >= fragment_count:
         return "invalid:fragment"
-    payload_length = int.from_bytes(raw[19:21], "big")
+    if payload_length > limits[raw[3]]:
-    if payload_length > CHANNEL_LIMITS[raw[3]]:
         return "invalid:payload_limit"
-    if len(raw) != HEADER_BYTES + payload_length:
+    if len(raw) != header_bytes + payload_length:
         return "invalid:length_mismatch"
-    if len(raw) > MAX_FRAME_BYTES:
+    if raw[2] == 1 and len(raw) > 65536 or raw[2] == 2 and len(raw) > 1200:
         return "invalid:frame_limit"
     return "valid"
 
 
 def main() -> None:
-    lines = (ROOT / "fixtures/conformance/datagram-v1.tsv").read_text(encoding="utf-8").splitlines()
+    for fixture in ("datagram-v1.tsv", "datagram-v2.tsv"):
+        lines = (ROOT / "fixtures/conformance" / fixture).read_text(encoding="utf-8").splitlines()
         assert lines[0] == "id\tversion\tkind\tinput\texpected"
         for line in lines[1:]:
             identifier, version, kind, input_value, expected = line.split("\t")
-        assert kind == "datagram" and version == "1"
+            assert kind == "datagram" and version in ("1", "2")
             encoded = input_value.removeprefix("hex=")
             try:
                 actual = classify(binascii.unhexlify(encoded))
             except binascii.Error:
                 actual = "invalid:hex"
-        assert actual == expected, f"{identifier}: {actual} != {expected}"
+            assert actual == expected, f"{fixture}:{identifier}: {actual} != {expected}"
     print("Datagram frame validation passed")
 
 

tools/validate_gateway_envelopes.py

@@ -59,8 +59,10 @@ def classify_feedback(raw: bytes) -> str:
             return "valid" if not body else "invalid:length"
         if kind == 2:
             return "valid" if valid_fec_status(body) else "invalid:field"
+        if kind == 3:
+            return "valid" if not body else "invalid:length"
         return "invalid:type"
-    if kind in (1, 2):
+    if kind in (1, 2, 3):
         return "invalid:direction"
     if kind == 0x10:
         return "valid" if len(body) == 4 else "invalid:length"