add gRPCs from bip300301_enforcer/proto

Author: Ash-L2L

proto/cusf/mainchain/v1/mainchain.proto

@@ -3,6 +3,8 @@
 syntax = "proto3";
 package cusf.mainchain.v1;
 
+import "google/protobuf/wrappers.proto";
+
 enum AddressType {
   ADDRESS_TYPE_UNSPECIFIED = 0;
   ADDRESS_TYPE_DEFAULT = 1;
@@ -80,6 +82,10 @@ service MainchainService {
     returns (GetBmmHStarCommitmentsResponse);
   rpc GetChainInfo(GetChainInfoRequest) returns (GetChainInfoResponse);
   rpc GetChainTip(GetChainTipRequest) returns (GetChainTipResponse);
+  rpc GetCtip(GetCtipRequest) returns (GetCtipResponse);
+  rpc GetSidechainProposals(GetSidechainProposalsRequest)
+      returns (GetSidechainProposalsResponse);
+  rpc GetSidechains(GetSidechainsRequest) returns (GetSidechainsResponse);
   rpc GetTwoWayPegData(GetTwoWayPegDataRequest)
     returns (GetTwoWayPegDataResponse);
   rpc SubscribeEvents(SubscribeEventsRequest)
@@ -173,6 +179,46 @@ message GetChainTipResponse {
   BlockHeaderInfo block_header_info = 1;
 }
 
+message GetCtipRequest {
+  google.protobuf.UInt32Value sidechain_number = 1;
+}
+message GetCtipResponse {
+  message Ctip {
+    bytes txid = 1;
+    uint32 vout = 2;
+    uint64 value = 3;
+    uint64 sequence_number = 4;
+  }
+  optional Ctip ctip = 1;
+}
+
+message GetSidechainProposalsRequest {
+}
+message GetSidechainProposalsResponse {
+  message SidechainProposal {
+    uint32 sidechain_number = 1;
+    bytes data = 2;
+    bytes data_hash = 3;
+    uint32 vote_count = 4;
+    uint32 proposal_height = 5;
+    uint32 proposal_age = 6;
+  }
+  repeated SidechainProposal sidechain_proposals = 1;
+}
+
+message GetSidechainsRequest {
+}
+message GetSidechainsResponse {
+  message SidechainInfo {
+    uint32 sidechain_number = 1;
+    bytes data = 2;
+    uint32 vote_count = 3;
+    uint32 proposal_height = 4;
+    uint32 activation_height = 5;
+  }
+  repeated SidechainInfo sidechains = 1;
+}
+
 message GetTwoWayPegDataRequest {
   uint32 sidechain_id = 1;
   optional bytes start_block_hash = 2;