diff --git a/pb/rpc.pb.go b/pb/rpc.pb.go
index dc9cc29..34bdf1e 100644
--- a/pb/rpc.pb.go
+++ b/pb/rpc.pb.go
@@ -8,6 +8,7 @@ import (
 	proto "github.com/gogo/protobuf/proto"
 	io "io"
 	math "math"
+	math_bits "math/bits"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.
@@ -19,7 +20,7 @@ var _ = math.Inf
 // is compatible with the proto package it is being compiled against.
 // A compilation error at this line likely means your copy of the
 // proto package needs to be updated.
-const _ = proto.GoGoProtoPackageIsVersion2 // please upgrade the proto package
+const _ = proto.GoGoProtoPackageIsVersion3 // please upgrade the proto package
 
 type TopicDescriptor_AuthOpts_AuthMode int32
 
@@ -130,7 +131,7 @@ func (m *RPC) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 		return xxx_messageInfo_RPC.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -192,7 +193,7 @@ func (m *RPC_SubOpts) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
 		return xxx_messageInfo_RPC_SubOpts.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -251,7 +252,7 @@ func (m *Message) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 		return xxx_messageInfo_Message.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -336,7 +337,7 @@ func (m *ControlMessage) XXX_Marshal(b []byte, deterministic bool) ([]byte, erro
 		return xxx_messageInfo_ControlMessage.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -384,7 +385,8 @@ func (m *ControlMessage) GetPrune() []*ControlPrune {
 }
 
 type ControlIHave struct {
-	TopicID              *string  `protobuf:"bytes,1,opt,name=topicID" json:"topicID,omitempty"`
+	TopicID *string `protobuf:"bytes,1,opt,name=topicID" json:"topicID,omitempty"`
+	// implementors from other languages should use bytes here - go protobuf emits invalid utf8 strings
 	MessageIDs           []string `protobuf:"bytes,2,rep,name=messageIDs" json:"messageIDs,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
@@ -405,7 +407,7 @@ func (m *ControlIHave) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
 		return xxx_messageInfo_ControlIHave.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -439,6 +441,7 @@ func (m *ControlIHave) GetMessageIDs() []string {
 }
 
 type ControlIWant struct {
+	// implementors from other languages should use bytes here - go protobuf emits invalid utf8 strings
 	MessageIDs           []string `protobuf:"bytes,1,rep,name=messageIDs" json:"messageIDs,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`
@@ -459,7 +462,7 @@ func (m *ControlIWant) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
 		return xxx_messageInfo_ControlIWant.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -506,7 +509,7 @@ func (m *ControlGraft) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
 		return xxx_messageInfo_ControlGraft.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -555,7 +558,7 @@ func (m *ControlPrune) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
 		return xxx_messageInfo_ControlPrune.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -617,7 +620,7 @@ func (m *PeerInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
 		return xxx_messageInfo_PeerInfo.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -673,7 +676,7 @@ func (m *TopicDescriptor) XXX_Marshal(b []byte, deterministic bool) ([]byte, err
 		return xxx_messageInfo_TopicDescriptor.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -735,7 +738,7 @@ func (m *TopicDescriptor_AuthOpts) XXX_Marshal(b []byte, deterministic bool) ([]
 		return xxx_messageInfo_TopicDescriptor_AuthOpts.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -790,7 +793,7 @@ func (m *TopicDescriptor_EncOpts) XXX_Marshal(b []byte, deterministic bool) ([]b
 		return xxx_messageInfo_TopicDescriptor_EncOpts.Marshal(b, m, deterministic)
 	} else {
 		b = b[:cap(b)]
-		n, err := m.MarshalTo(b)
+		n, err := m.MarshalToSizedBuffer(b)
 		if err != nil {
 			return nil, err
 		}
@@ -891,7 +894,7 @@ var fileDescriptor_77a6da22d6a3feb1 = []byte{
 func (m *RPC) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -899,54 +902,66 @@ func (m *RPC) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *RPC) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *RPC) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if len(m.Subscriptions) > 0 {
-		for _, msg := range m.Subscriptions {
-			dAtA[i] = 0xa
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(msg.Size()))
-			n, err := msg.MarshalTo(dAtA[i:])
-			if err != nil {
-				return 0, err
-			}
-			i += n
-		}
-	}
-	if len(m.Publish) > 0 {
-		for _, msg := range m.Publish {
-			dAtA[i] = 0x12
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(msg.Size()))
-			n, err := msg.MarshalTo(dAtA[i:])
-			if err != nil {
-				return 0, err
-			}
-			i += n
-		}
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if m.Control != nil {
-		dAtA[i] = 0x1a
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(m.Control.Size()))
-		n1, err1 := m.Control.MarshalTo(dAtA[i:])
-		if err1 != nil {
-			return 0, err1
+		{
+			size, err := m.Control.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintRpc(dAtA, i, uint64(size))
 		}
-		i += n1
+		i--
+		dAtA[i] = 0x1a
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if len(m.Publish) > 0 {
+		for iNdEx := len(m.Publish) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Publish[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintRpc(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0x12
+		}
 	}
-	return i, nil
+	if len(m.Subscriptions) > 0 {
+		for iNdEx := len(m.Subscriptions) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Subscriptions[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintRpc(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0xa
+		}
+	}
+	return len(dAtA) - i, nil
 }
 
 func (m *RPC_SubOpts) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -954,36 +969,43 @@ func (m *RPC_SubOpts) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *RPC_SubOpts) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *RPC_SubOpts) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.Topicid != nil {
+		i -= len(*m.Topicid)
+		copy(dAtA[i:], *m.Topicid)
+		i = encodeVarintRpc(dAtA, i, uint64(len(*m.Topicid)))
+		i--
+		dAtA[i] = 0x12
+	}
 	if m.Subscribe != nil {
-		dAtA[i] = 0x8
-		i++
+		i--
 		if *m.Subscribe {
 			dAtA[i] = 1
 		} else {
 			dAtA[i] = 0
 		}
-		i++
+		i--
+		dAtA[i] = 0x8
 	}
-	if m.Topicid != nil {
-		dAtA[i] = 0x12
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(*m.Topicid)))
-		i += copy(dAtA[i:], *m.Topicid)
-	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
-	}
-	return i, nil
+	return len(dAtA) - i, nil
 }
 
 func (m *Message) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -991,65 +1013,70 @@ func (m *Message) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *Message) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *Message) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.From != nil {
-		dAtA[i] = 0xa
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(m.From)))
-		i += copy(dAtA[i:], m.From)
-	}
-	if m.Data != nil {
-		dAtA[i] = 0x12
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(m.Data)))
-		i += copy(dAtA[i:], m.Data)
-	}
-	if m.Seqno != nil {
-		dAtA[i] = 0x1a
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(m.Seqno)))
-		i += copy(dAtA[i:], m.Seqno)
-	}
-	if len(m.TopicIDs) > 0 {
-		for _, s := range m.TopicIDs {
-			dAtA[i] = 0x22
-			i++
-			l = len(s)
-			for l >= 1<<7 {
-				dAtA[i] = uint8(uint64(l)&0x7f | 0x80)
-				l >>= 7
-				i++
-			}
-			dAtA[i] = uint8(l)
-			i++
-			i += copy(dAtA[i:], s)
-		}
-	}
-	if m.Signature != nil {
-		dAtA[i] = 0x2a
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(m.Signature)))
-		i += copy(dAtA[i:], m.Signature)
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if m.Key != nil {
-		dAtA[i] = 0x32
-		i++
+		i -= len(m.Key)
+		copy(dAtA[i:], m.Key)
 		i = encodeVarintRpc(dAtA, i, uint64(len(m.Key)))
-		i += copy(dAtA[i:], m.Key)
+		i--
+		dAtA[i] = 0x32
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if m.Signature != nil {
+		i -= len(m.Signature)
+		copy(dAtA[i:], m.Signature)
+		i = encodeVarintRpc(dAtA, i, uint64(len(m.Signature)))
+		i--
+		dAtA[i] = 0x2a
 	}
-	return i, nil
+	if len(m.TopicIDs) > 0 {
+		for iNdEx := len(m.TopicIDs) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.TopicIDs[iNdEx])
+			copy(dAtA[i:], m.TopicIDs[iNdEx])
+			i = encodeVarintRpc(dAtA, i, uint64(len(m.TopicIDs[iNdEx])))
+			i--
+			dAtA[i] = 0x22
+		}
+	}
+	if m.Seqno != nil {
+		i -= len(m.Seqno)
+		copy(dAtA[i:], m.Seqno)
+		i = encodeVarintRpc(dAtA, i, uint64(len(m.Seqno)))
+		i--
+		dAtA[i] = 0x1a
+	}
+	if m.Data != nil {
+		i -= len(m.Data)
+		copy(dAtA[i:], m.Data)
+		i = encodeVarintRpc(dAtA, i, uint64(len(m.Data)))
+		i--
+		dAtA[i] = 0x12
+	}
+	if m.From != nil {
+		i -= len(m.From)
+		copy(dAtA[i:], m.From)
+		i = encodeVarintRpc(dAtA, i, uint64(len(m.From)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
 }
 
 func (m *ControlMessage) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1057,68 +1084,82 @@ func (m *ControlMessage) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *ControlMessage) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *ControlMessage) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if len(m.Ihave) > 0 {
-		for _, msg := range m.Ihave {
-			dAtA[i] = 0xa
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(msg.Size()))
-			n, err := msg.MarshalTo(dAtA[i:])
-			if err != nil {
-				return 0, err
-			}
-			i += n
-		}
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
-	if len(m.Iwant) > 0 {
-		for _, msg := range m.Iwant {
-			dAtA[i] = 0x12
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(msg.Size()))
-			n, err := msg.MarshalTo(dAtA[i:])
-			if err != nil {
-				return 0, err
+	if len(m.Prune) > 0 {
+		for iNdEx := len(m.Prune) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Prune[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintRpc(dAtA, i, uint64(size))
 			}
-			i += n
+			i--
+			dAtA[i] = 0x22
 		}
 	}
 	if len(m.Graft) > 0 {
-		for _, msg := range m.Graft {
+		for iNdEx := len(m.Graft) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Graft[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintRpc(dAtA, i, uint64(size))
+			}
+			i--
 			dAtA[i] = 0x1a
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(msg.Size()))
-			n, err := msg.MarshalTo(dAtA[i:])
-			if err != nil {
-				return 0, err
-			}
-			i += n
 		}
 	}
-	if len(m.Prune) > 0 {
-		for _, msg := range m.Prune {
-			dAtA[i] = 0x22
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(msg.Size()))
-			n, err := msg.MarshalTo(dAtA[i:])
-			if err != nil {
-				return 0, err
+	if len(m.Iwant) > 0 {
+		for iNdEx := len(m.Iwant) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Iwant[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintRpc(dAtA, i, uint64(size))
 			}
-			i += n
+			i--
+			dAtA[i] = 0x12
 		}
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if len(m.Ihave) > 0 {
+		for iNdEx := len(m.Ihave) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Ihave[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintRpc(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0xa
+		}
 	}
-	return i, nil
+	return len(dAtA) - i, nil
 }
 
 func (m *ControlIHave) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1126,41 +1167,42 @@ func (m *ControlIHave) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *ControlIHave) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *ControlIHave) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.TopicID != nil {
-		dAtA[i] = 0xa
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(*m.TopicID)))
-		i += copy(dAtA[i:], *m.TopicID)
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if len(m.MessageIDs) > 0 {
-		for _, s := range m.MessageIDs {
+		for iNdEx := len(m.MessageIDs) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.MessageIDs[iNdEx])
+			copy(dAtA[i:], m.MessageIDs[iNdEx])
+			i = encodeVarintRpc(dAtA, i, uint64(len(m.MessageIDs[iNdEx])))
+			i--
 			dAtA[i] = 0x12
-			i++
-			l = len(s)
-			for l >= 1<<7 {
-				dAtA[i] = uint8(uint64(l)&0x7f | 0x80)
-				l >>= 7
-				i++
-			}
-			dAtA[i] = uint8(l)
-			i++
-			i += copy(dAtA[i:], s)
 		}
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if m.TopicID != nil {
+		i -= len(*m.TopicID)
+		copy(dAtA[i:], *m.TopicID)
+		i = encodeVarintRpc(dAtA, i, uint64(len(*m.TopicID)))
+		i--
+		dAtA[i] = 0xa
 	}
-	return i, nil
+	return len(dAtA) - i, nil
 }
 
 func (m *ControlIWant) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1168,35 +1210,35 @@ func (m *ControlIWant) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *ControlIWant) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *ControlIWant) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
 	if len(m.MessageIDs) > 0 {
-		for _, s := range m.MessageIDs {
+		for iNdEx := len(m.MessageIDs) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.MessageIDs[iNdEx])
+			copy(dAtA[i:], m.MessageIDs[iNdEx])
+			i = encodeVarintRpc(dAtA, i, uint64(len(m.MessageIDs[iNdEx])))
+			i--
 			dAtA[i] = 0xa
-			i++
-			l = len(s)
-			for l >= 1<<7 {
-				dAtA[i] = uint8(uint64(l)&0x7f | 0x80)
-				l >>= 7
-				i++
-			}
-			dAtA[i] = uint8(l)
-			i++
-			i += copy(dAtA[i:], s)
 		}
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
-	}
-	return i, nil
+	return len(dAtA) - i, nil
 }
 
 func (m *ControlGraft) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1204,26 +1246,33 @@ func (m *ControlGraft) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *ControlGraft) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *ControlGraft) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.TopicID != nil {
-		dAtA[i] = 0xa
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(*m.TopicID)))
-		i += copy(dAtA[i:], *m.TopicID)
-	}
 	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
-	return i, nil
+	if m.TopicID != nil {
+		i -= len(*m.TopicID)
+		copy(dAtA[i:], *m.TopicID)
+		i = encodeVarintRpc(dAtA, i, uint64(len(*m.TopicID)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
 }
 
 func (m *ControlPrune) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1231,43 +1280,52 @@ func (m *ControlPrune) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *ControlPrune) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *ControlPrune) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.TopicID != nil {
-		dAtA[i] = 0xa
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(*m.TopicID)))
-		i += copy(dAtA[i:], *m.TopicID)
-	}
-	if len(m.Peers) > 0 {
-		for _, msg := range m.Peers {
-			dAtA[i] = 0x12
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(msg.Size()))
-			n, err := msg.MarshalTo(dAtA[i:])
-			if err != nil {
-				return 0, err
-			}
-			i += n
-		}
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if m.Backoff != nil {
-		dAtA[i] = 0x18
-		i++
 		i = encodeVarintRpc(dAtA, i, uint64(*m.Backoff))
+		i--
+		dAtA[i] = 0x18
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if len(m.Peers) > 0 {
+		for iNdEx := len(m.Peers) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Peers[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintRpc(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0x12
+		}
 	}
-	return i, nil
+	if m.TopicID != nil {
+		i -= len(*m.TopicID)
+		copy(dAtA[i:], *m.TopicID)
+		i = encodeVarintRpc(dAtA, i, uint64(len(*m.TopicID)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
 }
 
 func (m *PeerInfo) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1275,32 +1333,40 @@ func (m *PeerInfo) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *PeerInfo) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *PeerInfo) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.PeerID != nil {
-		dAtA[i] = 0xa
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(m.PeerID)))
-		i += copy(dAtA[i:], m.PeerID)
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if m.SignedPeerRecord != nil {
-		dAtA[i] = 0x12
-		i++
+		i -= len(m.SignedPeerRecord)
+		copy(dAtA[i:], m.SignedPeerRecord)
 		i = encodeVarintRpc(dAtA, i, uint64(len(m.SignedPeerRecord)))
-		i += copy(dAtA[i:], m.SignedPeerRecord)
+		i--
+		dAtA[i] = 0x12
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if m.PeerID != nil {
+		i -= len(m.PeerID)
+		copy(dAtA[i:], m.PeerID)
+		i = encodeVarintRpc(dAtA, i, uint64(len(m.PeerID)))
+		i--
+		dAtA[i] = 0xa
 	}
-	return i, nil
+	return len(dAtA) - i, nil
 }
 
 func (m *TopicDescriptor) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1308,46 +1374,57 @@ func (m *TopicDescriptor) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *TopicDescriptor) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *TopicDescriptor) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.Name != nil {
-		dAtA[i] = 0xa
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(len(*m.Name)))
-		i += copy(dAtA[i:], *m.Name)
-	}
-	if m.Auth != nil {
-		dAtA[i] = 0x12
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(m.Auth.Size()))
-		n2, err2 := m.Auth.MarshalTo(dAtA[i:])
-		if err2 != nil {
-			return 0, err2
-		}
-		i += n2
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if m.Enc != nil {
-		dAtA[i] = 0x1a
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(m.Enc.Size()))
-		n3, err3 := m.Enc.MarshalTo(dAtA[i:])
-		if err3 != nil {
-			return 0, err3
+		{
+			size, err := m.Enc.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintRpc(dAtA, i, uint64(size))
 		}
-		i += n3
+		i--
+		dAtA[i] = 0x1a
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if m.Auth != nil {
+		{
+			size, err := m.Auth.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintRpc(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x12
 	}
-	return i, nil
+	if m.Name != nil {
+		i -= len(*m.Name)
+		copy(dAtA[i:], *m.Name)
+		i = encodeVarintRpc(dAtA, i, uint64(len(*m.Name)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
 }
 
 func (m *TopicDescriptor_AuthOpts) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1355,33 +1432,40 @@ func (m *TopicDescriptor_AuthOpts) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *TopicDescriptor_AuthOpts) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *TopicDescriptor_AuthOpts) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.Mode != nil {
-		dAtA[i] = 0x8
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(*m.Mode))
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if len(m.Keys) > 0 {
-		for _, b := range m.Keys {
+		for iNdEx := len(m.Keys) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.Keys[iNdEx])
+			copy(dAtA[i:], m.Keys[iNdEx])
+			i = encodeVarintRpc(dAtA, i, uint64(len(m.Keys[iNdEx])))
+			i--
 			dAtA[i] = 0x12
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(len(b)))
-			i += copy(dAtA[i:], b)
 		}
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if m.Mode != nil {
+		i = encodeVarintRpc(dAtA, i, uint64(*m.Mode))
+		i--
+		dAtA[i] = 0x8
 	}
-	return i, nil
+	return len(dAtA) - i, nil
 }
 
 func (m *TopicDescriptor_EncOpts) Marshal() (dAtA []byte, err error) {
 	size := m.Size()
 	dAtA = make([]byte, size)
-	n, err := m.MarshalTo(dAtA)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
 	if err != nil {
 		return nil, err
 	}
@@ -1389,37 +1473,46 @@ func (m *TopicDescriptor_EncOpts) Marshal() (dAtA []byte, err error) {
 }
 
 func (m *TopicDescriptor_EncOpts) MarshalTo(dAtA []byte) (int, error) {
-	var i int
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *TopicDescriptor_EncOpts) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
 	_ = i
 	var l int
 	_ = l
-	if m.Mode != nil {
-		dAtA[i] = 0x8
-		i++
-		i = encodeVarintRpc(dAtA, i, uint64(*m.Mode))
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
 	}
 	if len(m.KeyHashes) > 0 {
-		for _, b := range m.KeyHashes {
+		for iNdEx := len(m.KeyHashes) - 1; iNdEx >= 0; iNdEx-- {
+			i -= len(m.KeyHashes[iNdEx])
+			copy(dAtA[i:], m.KeyHashes[iNdEx])
+			i = encodeVarintRpc(dAtA, i, uint64(len(m.KeyHashes[iNdEx])))
+			i--
 			dAtA[i] = 0x12
-			i++
-			i = encodeVarintRpc(dAtA, i, uint64(len(b)))
-			i += copy(dAtA[i:], b)
 		}
 	}
-	if m.XXX_unrecognized != nil {
-		i += copy(dAtA[i:], m.XXX_unrecognized)
+	if m.Mode != nil {
+		i = encodeVarintRpc(dAtA, i, uint64(*m.Mode))
+		i--
+		dAtA[i] = 0x8
 	}
-	return i, nil
+	return len(dAtA) - i, nil
 }
 
 func encodeVarintRpc(dAtA []byte, offset int, v uint64) int {
+	offset -= sovRpc(v)
+	base := offset
 	for v >= 1<<7 {
 		dAtA[offset] = uint8(v&0x7f | 0x80)
 		v >>= 7
 		offset++
 	}
 	dAtA[offset] = uint8(v)
-	return offset + 1
+	return base
 }
 func (m *RPC) Size() (n int) {
 	if m == nil {
@@ -1710,14 +1803,7 @@ func (m *TopicDescriptor_EncOpts) Size() (n int) {
 }
 
 func sovRpc(x uint64) (n int) {
-	for {
-		n++
-		x >>= 7
-		if x == 0 {
-			break
-		}
-	}
-	return n
+	return (math_bits.Len64(x|1) + 6) / 7
 }
 func sozRpc(x uint64) (n int) {
 	return sovRpc(uint64((x << 1) ^ uint64((int64(x) >> 63))))
@@ -3363,6 +3449,7 @@ func (m *TopicDescriptor_EncOpts) Unmarshal(dAtA []byte) error {
 func skipRpc(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0
+	depth := 0
 	for iNdEx < l {
 		var wire uint64
 		for shift := uint(0); ; shift += 7 {
@@ -3394,10 +3481,8 @@ func skipRpc(dAtA []byte) (n int, err error) {
 					break
 				}
 			}
-			return iNdEx, nil
 		case 1:
 			iNdEx += 8
-			return iNdEx, nil
 		case 2:
 			var length int
 			for shift := uint(0); ; shift += 7 {
@@ -3418,55 +3503,30 @@ func skipRpc(dAtA []byte) (n int, err error) {
 				return 0, ErrInvalidLengthRpc
 			}
 			iNdEx += length
-			if iNdEx < 0 {
-				return 0, ErrInvalidLengthRpc
-			}
-			return iNdEx, nil
 		case 3:
-			for {
-				var innerWire uint64
-				var start int = iNdEx
-				for shift := uint(0); ; shift += 7 {
-					if shift >= 64 {
-						return 0, ErrIntOverflowRpc
-					}
-					if iNdEx >= l {
-						return 0, io.ErrUnexpectedEOF
-					}
-					b := dAtA[iNdEx]
-					iNdEx++
-					innerWire |= (uint64(b) & 0x7F) << shift
-					if b < 0x80 {
-						break
-					}
-				}
-				innerWireType := int(innerWire & 0x7)
-				if innerWireType == 4 {
-					break
-				}
-				next, err := skipRpc(dAtA[start:])
-				if err != nil {
-					return 0, err
-				}
-				iNdEx = start + next
-				if iNdEx < 0 {
-					return 0, ErrInvalidLengthRpc
-				}
-			}
-			return iNdEx, nil
+			depth++
 		case 4:
-			return iNdEx, nil
+			if depth == 0 {
+				return 0, ErrUnexpectedEndOfGroupRpc
+			}
+			depth--
 		case 5:
 			iNdEx += 4
-			return iNdEx, nil
 		default:
 			return 0, fmt.Errorf("proto: illegal wireType %d", wireType)
 		}
+		if iNdEx < 0 {
+			return 0, ErrInvalidLengthRpc
+		}
+		if depth == 0 {
+			return iNdEx, nil
+		}
 	}
-	panic("unreachable")
+	return 0, io.ErrUnexpectedEOF
 }
 
 var (
-	ErrInvalidLengthRpc = fmt.Errorf("proto: negative length found during unmarshaling")
-	ErrIntOverflowRpc   = fmt.Errorf("proto: integer overflow")
+	ErrInvalidLengthRpc        = fmt.Errorf("proto: negative length found during unmarshaling")
+	ErrIntOverflowRpc          = fmt.Errorf("proto: integer overflow")
+	ErrUnexpectedEndOfGroupRpc = fmt.Errorf("proto: unexpected end of group")
 )