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syntax = "proto3";
package bluetooth.l2cap.classic;
import "proto/common.proto";
service L2capClassicModuleFacade {
rpc FetchConnectionComplete(facade.Empty) returns (stream ConnectionCompleteEvent) {
// Testing Android Bluetooth stack only. Optional for other stack.
}
rpc FetchConnectionClose(facade.Empty) returns (stream ConnectionCloseEvent) {
// Testing Android Bluetooth stack only. Optional for other stack.
}
rpc OpenChannel(OpenChannelRequest) returns (facade.Empty) {}
rpc CloseChannel(CloseChannelRequest) returns (facade.Empty) {}
rpc FetchL2capData(facade.Empty) returns (stream L2capPacket) {}
rpc SetDynamicChannel(SetEnableDynamicChannelRequest) returns (facade.Empty) {}
rpc SendDynamicChannelPacket(DynamicChannelPacket) returns (facade.Empty) {}
rpc SetTrafficPaused(SetTrafficPausedRequest) returns (facade.Empty) {}
rpc GetChannelQueueDepth(facade.Empty) returns (GetChannelQueueDepthResponse) {
// Get the buffer size of channel queue end for L2CAP user (how many packets we can buffer
// before L2CAP user dequeues.
}
rpc InitiateConnectionForSecurity(facade.BluetoothAddress) returns (facade.Empty) {}
rpc FetchSecurityConnectionEvents(facade.Empty) returns (stream LinkSecurityInterfaceCallbackEvent) {}
rpc SecurityLinkEnsureAuthenticated(facade.BluetoothAddress) returns (facade.Empty) {}
rpc SecurityLinkHold(facade.BluetoothAddress) returns (facade.Empty) {}
rpc SecurityLinkDisconnect(facade.BluetoothAddress) returns (facade.Empty) {}
rpc SecurityLinkRelease(facade.BluetoothAddress) returns (facade.Empty) {}
}
enum LinkSecurityInterfaceCallbackEventType {
ON_CONNECTED = 0;
ON_DISCONNECTED = 1;
ON_AUTHENTICATION_COMPLETE = 2;
ON_ENCRYPTION_CHANGE = 3;
ON_READ_REMOTE_VERSION_INFO = 4;
ON_READ_REMOTE_EXTENDED_FEATURES = 5;
}
message LinkSecurityInterfaceCallbackEvent {
facade.BluetoothAddress address = 1;
LinkSecurityInterfaceCallbackEventType event_type = 2;
}
message RegisterChannelRequest {
uint32 channel = 1;
}
message ConnectionCompleteEvent {
facade.BluetoothAddress remote = 1;
}
message ConnectionCloseEvent {
facade.BluetoothAddress remote = 1;
uint32 reason = 2;
}
enum RetransmissionFlowControlMode {
BASIC = 0;
ERTM = 1;
ERTM_OPTIONAL = 2;
}
message OpenChannelRequest {
facade.BluetoothAddress remote = 1;
uint32 psm = 2;
RetransmissionFlowControlMode mode = 3;
}
message CloseChannelRequest {
uint32 psm = 1;
}
enum ChannelSignalEventType {
OPEN = 0;
CLOSE = 1;
CONFIGURE = 2;
}
message ChannelSignalEvent {
uint32 cid = 1;
ChannelSignalEventType type = 2;
}
enum SendL2capPacketResultType {
OK = 0;
BAD_CID = 1;
}
message SendL2capPacketResult {
SendL2capPacketResultType result_type = 1;
}
message L2capPacket {
oneof channel_type {
uint32 psm = 1;
uint32 fixed_cid = 2;
}
bytes payload = 3;
}
message SetEnableDynamicChannelRequest {
uint32 psm = 1;
bool enable = 2;
RetransmissionFlowControlMode retransmission_mode = 3;
}
message DynamicChannelPacket {
facade.BluetoothAddress remote = 1;
uint32 psm = 2;
bytes payload = 3;
}
message SetTrafficPausedRequest {
bool paused = 1;
uint32 psm = 2;
}
message GetChannelQueueDepthResponse {
uint32 size = 1;
}
enum ClassicSecurityPolicy {
ENCRYPTED_TRANSPORT = 0;
AUTHENTICATED_ENCRYPTED_TRANSPORT = 1;
BEST = 2;
_SDP_ONLY_NO_SECURITY_WHATSOEVER_PLAINTEXT_TRANSPORT_OK = 3;
}
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