protobuf messages

5 files changed, 4113 insertions, 0 deletions

diff --git a/src/drive_proto.proto b/src/drive_proto.proto
new file mode 100644
index 0000000..cd36b30
--- /dev/null
+++ b/src/drive_proto.proto
@@ -0,0 +1,18 @@
+// From hyperdrive:lib/messages.js
+
+message Index {
+  required string type = 1;
+  optional bytes content = 2;
+}
+
+message Stat {
+  required uint32 mode = 1;
+  optional uint32 uid = 2;
+  optional uint32 gid = 3;
+  optional uint64 size = 4;
+  optional uint64 blocks = 5;
+  optional uint64 offset = 6;
+  optional uint64 byteOffset = 7;
+  optional uint64 mtime = 8;
+  optional uint64 ctime = 9;
+}
diff --git a/src/drive_proto.rs b/src/drive_proto.rs
new file mode 100644
index 0000000..c30833a
--- /dev/null
+++ b/src/drive_proto.rs
@@ -0,0 +1,893 @@
+// This file is generated. Do not edit
+// @generated
+
+// https://github.com/Manishearth/rust-clippy/issues/702
+#![allow(unknown_lints)]
+#![allow(clippy)]
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+
+#![allow(box_pointers)]
+#![allow(dead_code)]
+#![allow(missing_docs)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(trivial_casts)]
+#![allow(unsafe_code)]
+#![allow(unused_imports)]
+#![allow(unused_results)]
+
+use protobuf::Message as Message_imported_for_functions;
+use protobuf::ProtobufEnum as ProtobufEnum_imported_for_functions;
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Index {
+    // message fields
+    field_type: ::protobuf::SingularField<::std::string::String>,
+    content: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Index {}
+
+impl Index {
+    pub fn new() -> Index {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Index {
+        static mut instance: ::protobuf::lazy::Lazy<Index> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Index,
+        };
+        unsafe {
+            instance.get(Index::new)
+        }
+    }
+
+    // required string type = 1;
+
+    pub fn clear_field_type(&mut self) {
+        self.field_type.clear();
+    }
+
+    pub fn has_field_type(&self) -> bool {
+        self.field_type.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_field_type(&mut self, v: ::std::string::String) {
+        self.field_type = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_field_type(&mut self) -> &mut ::std::string::String {
+        if self.field_type.is_none() {
+            self.field_type.set_default();
+        }
+        self.field_type.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_field_type(&mut self) -> ::std::string::String {
+        self.field_type.take().unwrap_or_else(|| ::std::string::String::new())
+    }
+
+    pub fn get_field_type(&self) -> &str {
+        match self.field_type.as_ref() {
+            Some(v) => &v,
+            None => "",
+        }
+    }
+
+    fn get_field_type_for_reflect(&self) -> &::protobuf::SingularField<::std::string::String> {
+        &self.field_type
+    }
+
+    fn mut_field_type_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::string::String> {
+        &mut self.field_type
+    }
+
+    // optional bytes content = 2;
+
+    pub fn clear_content(&mut self) {
+        self.content.clear();
+    }
+
+    pub fn has_content(&self) -> bool {
+        self.content.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_content(&mut self, v: ::std::vec::Vec<u8>) {
+        self.content = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_content(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.content.is_none() {
+            self.content.set_default();
+        }
+        self.content.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_content(&mut self) -> ::std::vec::Vec<u8> {
+        self.content.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_content(&self) -> &[u8] {
+        match self.content.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_content_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.content
+    }
+
+    fn mut_content_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.content
+    }
+}
+
+impl ::protobuf::Message for Index {
+    fn is_initialized(&self) -> bool {
+        if self.field_type.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    ::protobuf::rt::read_singular_string_into(wire_type, is, &mut self.field_type)?;
+                },
+                2 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.content)?;
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(ref v) = self.field_type.as_ref() {
+            my_size += ::protobuf::rt::string_size(1, &v);
+        }
+        if let Some(ref v) = self.content.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(2, &v);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(ref v) = self.field_type.as_ref() {
+            os.write_string(1, &v)?;
+        }
+        if let Some(ref v) = self.content.as_ref() {
+            os.write_bytes(2, &v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Index {
+    fn new() -> Index {
+        Index::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Index>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
+                    "type",
+                    Index::get_field_type_for_reflect,
+                    Index::mut_field_type_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "content",
+                    Index::get_content_for_reflect,
+                    Index::mut_content_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Index>(
+                    "Index",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Index {
+    fn clear(&mut self) {
+        self.clear_field_type();
+        self.clear_content();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Index {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Index {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Stat {
+    // message fields
+    mode: ::std::option::Option<u32>,
+    uid: ::std::option::Option<u32>,
+    gid: ::std::option::Option<u32>,
+    size: ::std::option::Option<u64>,
+    blocks: ::std::option::Option<u64>,
+    offset: ::std::option::Option<u64>,
+    byteOffset: ::std::option::Option<u64>,
+    mtime: ::std::option::Option<u64>,
+    ctime: ::std::option::Option<u64>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Stat {}
+
+impl Stat {
+    pub fn new() -> Stat {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Stat {
+        static mut instance: ::protobuf::lazy::Lazy<Stat> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Stat,
+        };
+        unsafe {
+            instance.get(Stat::new)
+        }
+    }
+
+    // required uint32 mode = 1;
+
+    pub fn clear_mode(&mut self) {
+        self.mode = ::std::option::Option::None;
+    }
+
+    pub fn has_mode(&self) -> bool {
+        self.mode.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_mode(&mut self, v: u32) {
+        self.mode = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_mode(&self) -> u32 {
+        self.mode.unwrap_or(0)
+    }
+
+    fn get_mode_for_reflect(&self) -> &::std::option::Option<u32> {
+        &self.mode
+    }
+
+    fn mut_mode_for_reflect(&mut self) -> &mut ::std::option::Option<u32> {
+        &mut self.mode
+    }
+
+    // optional uint32 uid = 2;
+
+    pub fn clear_uid(&mut self) {
+        self.uid = ::std::option::Option::None;
+    }
+
+    pub fn has_uid(&self) -> bool {
+        self.uid.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_uid(&mut self, v: u32) {
+        self.uid = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_uid(&self) -> u32 {
+        self.uid.unwrap_or(0)
+    }
+
+    fn get_uid_for_reflect(&self) -> &::std::option::Option<u32> {
+        &self.uid
+    }
+
+    fn mut_uid_for_reflect(&mut self) -> &mut ::std::option::Option<u32> {
+        &mut self.uid
+    }
+
+    // optional uint32 gid = 3;
+
+    pub fn clear_gid(&mut self) {
+        self.gid = ::std::option::Option::None;
+    }
+
+    pub fn has_gid(&self) -> bool {
+        self.gid.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_gid(&mut self, v: u32) {
+        self.gid = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_gid(&self) -> u32 {
+        self.gid.unwrap_or(0)
+    }
+
+    fn get_gid_for_reflect(&self) -> &::std::option::Option<u32> {
+        &self.gid
+    }
+
+    fn mut_gid_for_reflect(&mut self) -> &mut ::std::option::Option<u32> {
+        &mut self.gid
+    }
+
+    // optional uint64 size = 4;
+
+    pub fn clear_size(&mut self) {
+        self.size = ::std::option::Option::None;
+    }
+
+    pub fn has_size(&self) -> bool {
+        self.size.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_size(&mut self, v: u64) {
+        self.size = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_size(&self) -> u64 {
+        self.size.unwrap_or(0)
+    }
+
+    fn get_size_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.size
+    }
+
+    fn mut_size_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.size
+    }
+
+    // optional uint64 blocks = 5;
+
+    pub fn clear_blocks(&mut self) {
+        self.blocks = ::std::option::Option::None;
+    }
+
+    pub fn has_blocks(&self) -> bool {
+        self.blocks.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_blocks(&mut self, v: u64) {
+        self.blocks = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_blocks(&self) -> u64 {
+        self.blocks.unwrap_or(0)
+    }
+
+    fn get_blocks_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.blocks
+    }
+
+    fn mut_blocks_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.blocks
+    }
+
+    // optional uint64 offset = 6;
+
+    pub fn clear_offset(&mut self) {
+        self.offset = ::std::option::Option::None;
+    }
+
+    pub fn has_offset(&self) -> bool {
+        self.offset.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_offset(&mut self, v: u64) {
+        self.offset = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_offset(&self) -> u64 {
+        self.offset.unwrap_or(0)
+    }
+
+    fn get_offset_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.offset
+    }
+
+    fn mut_offset_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.offset
+    }
+
+    // optional uint64 byteOffset = 7;
+
+    pub fn clear_byteOffset(&mut self) {
+        self.byteOffset = ::std::option::Option::None;
+    }
+
+    pub fn has_byteOffset(&self) -> bool {
+        self.byteOffset.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_byteOffset(&mut self, v: u64) {
+        self.byteOffset = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_byteOffset(&self) -> u64 {
+        self.byteOffset.unwrap_or(0)
+    }
+
+    fn get_byteOffset_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.byteOffset
+    }
+
+    fn mut_byteOffset_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.byteOffset
+    }
+
+    // optional uint64 mtime = 8;
+
+    pub fn clear_mtime(&mut self) {
+        self.mtime = ::std::option::Option::None;
+    }
+
+    pub fn has_mtime(&self) -> bool {
+        self.mtime.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_mtime(&mut self, v: u64) {
+        self.mtime = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_mtime(&self) -> u64 {
+        self.mtime.unwrap_or(0)
+    }
+
+    fn get_mtime_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.mtime
+    }
+
+    fn mut_mtime_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.mtime
+    }
+
+    // optional uint64 ctime = 9;
+
+    pub fn clear_ctime(&mut self) {
+        self.ctime = ::std::option::Option::None;
+    }
+
+    pub fn has_ctime(&self) -> bool {
+        self.ctime.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_ctime(&mut self, v: u64) {
+        self.ctime = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_ctime(&self) -> u64 {
+        self.ctime.unwrap_or(0)
+    }
+
+    fn get_ctime_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.ctime
+    }
+
+    fn mut_ctime_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.ctime
+    }
+}
+
+impl ::protobuf::Message for Stat {
+    fn is_initialized(&self) -> bool {
+        if self.mode.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint32()?;
+                    self.mode = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint32()?;
+                    self.uid = ::std::option::Option::Some(tmp);
+                },
+                3 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint32()?;
+                    self.gid = ::std::option::Option::Some(tmp);
+                },
+                4 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.size = ::std::option::Option::Some(tmp);
+                },
+                5 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.blocks = ::std::option::Option::Some(tmp);
+                },
+                6 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.offset = ::std::option::Option::Some(tmp);
+                },
+                7 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.byteOffset = ::std::option::Option::Some(tmp);
+                },
+                8 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.mtime = ::std::option::Option::Some(tmp);
+                },
+                9 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.ctime = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.mode {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.uid {
+            my_size += ::protobuf::rt::value_size(2, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.gid {
+            my_size += ::protobuf::rt::value_size(3, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.size {
+            my_size += ::protobuf::rt::value_size(4, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.blocks {
+            my_size += ::protobuf::rt::value_size(5, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.offset {
+            my_size += ::protobuf::rt::value_size(6, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.byteOffset {
+            my_size += ::protobuf::rt::value_size(7, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.mtime {
+            my_size += ::protobuf::rt::value_size(8, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.ctime {
+            my_size += ::protobuf::rt::value_size(9, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.mode {
+            os.write_uint32(1, v)?;
+        }
+        if let Some(v) = self.uid {
+            os.write_uint32(2, v)?;
+        }
+        if let Some(v) = self.gid {
+            os.write_uint32(3, v)?;
+        }
+        if let Some(v) = self.size {
+            os.write_uint64(4, v)?;
+        }
+        if let Some(v) = self.blocks {
+            os.write_uint64(5, v)?;
+        }
+        if let Some(v) = self.offset {
+            os.write_uint64(6, v)?;
+        }
+        if let Some(v) = self.byteOffset {
+            os.write_uint64(7, v)?;
+        }
+        if let Some(v) = self.mtime {
+            os.write_uint64(8, v)?;
+        }
+        if let Some(v) = self.ctime {
+            os.write_uint64(9, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Stat {
+    fn new() -> Stat {
+        Stat::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Stat>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint32>(
+                    "mode",
+                    Stat::get_mode_for_reflect,
+                    Stat::mut_mode_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint32>(
+                    "uid",
+                    Stat::get_uid_for_reflect,
+                    Stat::mut_uid_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint32>(
+                    "gid",
+                    Stat::get_gid_for_reflect,
+                    Stat::mut_gid_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "size",
+                    Stat::get_size_for_reflect,
+                    Stat::mut_size_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "blocks",
+                    Stat::get_blocks_for_reflect,
+                    Stat::mut_blocks_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "offset",
+                    Stat::get_offset_for_reflect,
+                    Stat::mut_offset_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "byteOffset",
+                    Stat::get_byteOffset_for_reflect,
+                    Stat::mut_byteOffset_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "mtime",
+                    Stat::get_mtime_for_reflect,
+                    Stat::mut_mtime_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "ctime",
+                    Stat::get_ctime_for_reflect,
+                    Stat::mut_ctime_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Stat>(
+                    "Stat",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Stat {
+    fn clear(&mut self) {
+        self.clear_mode();
+        self.clear_uid();
+        self.clear_gid();
+        self.clear_size();
+        self.clear_blocks();
+        self.clear_offset();
+        self.clear_byteOffset();
+        self.clear_mtime();
+        self.clear_ctime();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Stat {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Stat {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+static file_descriptor_proto_data: &'static [u8] = b"\
+    \n\x10hyperdrive.proto\"5\n\x05Index\x12\x12\n\x04type\x18\x01\x20\x02(\
+    \tR\x04type\x12\x18\n\x07content\x18\x02\x20\x01(\x0cR\x07content\"\xce\
+    \x01\n\x04Stat\x12\x12\n\x04mode\x18\x01\x20\x02(\rR\x04mode\x12\x10\n\
+    \x03uid\x18\x02\x20\x01(\rR\x03uid\x12\x10\n\x03gid\x18\x03\x20\x01(\rR\
+    \x03gid\x12\x12\n\x04size\x18\x04\x20\x01(\x04R\x04size\x12\x16\n\x06blo\
+    cks\x18\x05\x20\x01(\x04R\x06blocks\x12\x16\n\x06offset\x18\x06\x20\x01(\
+    \x04R\x06offset\x12\x1e\n\nbyteOffset\x18\x07\x20\x01(\x04R\nbyteOffset\
+    \x12\x14\n\x05mtime\x18\x08\x20\x01(\x04R\x05mtime\x12\x14\n\x05ctime\
+    \x18\t\x20\x01(\x04R\x05ctimeJ\xd2\x06\n\x06\x12\x04\x02\0\x11\x01\n-\n\
+    \x02\x04\0\x12\x04\x02\0\x05\x012!\x20From\x20hyperdrive:lib/messages.js\
+    \n\n\n\n\x03\x04\0\x01\x12\x03\x02\x08\r\n\x0b\n\x04\x04\0\x02\0\x12\x03\
+    \x03\x02\x1b\n\x0c\n\x05\x04\0\x02\0\x04\x12\x03\x03\x02\n\n\x0c\n\x05\
+    \x04\0\x02\0\x05\x12\x03\x03\x0b\x11\n\x0c\n\x05\x04\0\x02\0\x01\x12\x03\
+    \x03\x12\x16\n\x0c\n\x05\x04\0\x02\0\x03\x12\x03\x03\x19\x1a\n\x0b\n\x04\
+    \x04\0\x02\x01\x12\x03\x04\x02\x1d\n\x0c\n\x05\x04\0\x02\x01\x04\x12\x03\
+    \x04\x02\n\n\x0c\n\x05\x04\0\x02\x01\x05\x12\x03\x04\x0b\x10\n\x0c\n\x05\
+    \x04\0\x02\x01\x01\x12\x03\x04\x11\x18\n\x0c\n\x05\x04\0\x02\x01\x03\x12\
+    \x03\x04\x1b\x1c\n\n\n\x02\x04\x01\x12\x04\x07\0\x11\x01\n\n\n\x03\x04\
+    \x01\x01\x12\x03\x07\x08\x0c\n\x0b\n\x04\x04\x01\x02\0\x12\x03\x08\x02\
+    \x1b\n\x0c\n\x05\x04\x01\x02\0\x04\x12\x03\x08\x02\n\n\x0c\n\x05\x04\x01\
+    \x02\0\x05\x12\x03\x08\x0b\x11\n\x0c\n\x05\x04\x01\x02\0\x01\x12\x03\x08\
+    \x12\x16\n\x0c\n\x05\x04\x01\x02\0\x03\x12\x03\x08\x19\x1a\n\x0b\n\x04\
+    \x04\x01\x02\x01\x12\x03\t\x02\x1a\n\x0c\n\x05\x04\x01\x02\x01\x04\x12\
+    \x03\t\x02\n\n\x0c\n\x05\x04\x01\x02\x01\x05\x12\x03\t\x0b\x11\n\x0c\n\
+    \x05\x04\x01\x02\x01\x01\x12\x03\t\x12\x15\n\x0c\n\x05\x04\x01\x02\x01\
+    \x03\x12\x03\t\x18\x19\n\x0b\n\x04\x04\x01\x02\x02\x12\x03\n\x02\x1a\n\
+    \x0c\n\x05\x04\x01\x02\x02\x04\x12\x03\n\x02\n\n\x0c\n\x05\x04\x01\x02\
+    \x02\x05\x12\x03\n\x0b\x11\n\x0c\n\x05\x04\x01\x02\x02\x01\x12\x03\n\x12\
+    \x15\n\x0c\n\x05\x04\x01\x02\x02\x03\x12\x03\n\x18\x19\n\x0b\n\x04\x04\
+    \x01\x02\x03\x12\x03\x0b\x02\x1b\n\x0c\n\x05\x04\x01\x02\x03\x04\x12\x03\
+    \x0b\x02\n\n\x0c\n\x05\x04\x01\x02\x03\x05\x12\x03\x0b\x0b\x11\n\x0c\n\
+    \x05\x04\x01\x02\x03\x01\x12\x03\x0b\x12\x16\n\x0c\n\x05\x04\x01\x02\x03\
+    \x03\x12\x03\x0b\x19\x1a\n\x0b\n\x04\x04\x01\x02\x04\x12\x03\x0c\x02\x1d\
+    \n\x0c\n\x05\x04\x01\x02\x04\x04\x12\x03\x0c\x02\n\n\x0c\n\x05\x04\x01\
+    \x02\x04\x05\x12\x03\x0c\x0b\x11\n\x0c\n\x05\x04\x01\x02\x04\x01\x12\x03\
+    \x0c\x12\x18\n\x0c\n\x05\x04\x01\x02\x04\x03\x12\x03\x0c\x1b\x1c\n\x0b\n\
+    \x04\x04\x01\x02\x05\x12\x03\r\x02\x1d\n\x0c\n\x05\x04\x01\x02\x05\x04\
+    \x12\x03\r\x02\n\n\x0c\n\x05\x04\x01\x02\x05\x05\x12\x03\r\x0b\x11\n\x0c\
+    \n\x05\x04\x01\x02\x05\x01\x12\x03\r\x12\x18\n\x0c\n\x05\x04\x01\x02\x05\
+    \x03\x12\x03\r\x1b\x1c\n\x0b\n\x04\x04\x01\x02\x06\x12\x03\x0e\x02!\n\
+    \x0c\n\x05\x04\x01\x02\x06\x04\x12\x03\x0e\x02\n\n\x0c\n\x05\x04\x01\x02\
+    \x06\x05\x12\x03\x0e\x0b\x11\n\x0c\n\x05\x04\x01\x02\x06\x01\x12\x03\x0e\
+    \x12\x1c\n\x0c\n\x05\x04\x01\x02\x06\x03\x12\x03\x0e\x1f\x20\n\x0b\n\x04\
+    \x04\x01\x02\x07\x12\x03\x0f\x02\x1c\n\x0c\n\x05\x04\x01\x02\x07\x04\x12\
+    \x03\x0f\x02\n\n\x0c\n\x05\x04\x01\x02\x07\x05\x12\x03\x0f\x0b\x11\n\x0c\
+    \n\x05\x04\x01\x02\x07\x01\x12\x03\x0f\x12\x17\n\x0c\n\x05\x04\x01\x02\
+    \x07\x03\x12\x03\x0f\x1a\x1b\n\x0b\n\x04\x04\x01\x02\x08\x12\x03\x10\x02\
+    \x1c\n\x0c\n\x05\x04\x01\x02\x08\x04\x12\x03\x10\x02\n\n\x0c\n\x05\x04\
+    \x01\x02\x08\x05\x12\x03\x10\x0b\x11\n\x0c\n\x05\x04\x01\x02\x08\x01\x12\
+    \x03\x10\x12\x17\n\x0c\n\x05\x04\x01\x02\x08\x03\x12\x03\x10\x1a\x1b\
+";
+
+static mut file_descriptor_proto_lazy: ::protobuf::lazy::Lazy<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::lazy::Lazy {
+    lock: ::protobuf::lazy::ONCE_INIT,
+    ptr: 0 as *const ::protobuf::descriptor::FileDescriptorProto,
+};
+
+fn parse_descriptor_proto() -> ::protobuf::descriptor::FileDescriptorProto {
+    ::protobuf::parse_from_bytes(file_descriptor_proto_data).unwrap()
+}
+
+pub fn file_descriptor_proto() -> &'static ::protobuf::descriptor::FileDescriptorProto {
+    unsafe {
+        file_descriptor_proto_lazy.get(|| {
+            parse_descriptor_proto()
+        })
+    }
+}
diff --git a/src/lib.rs b/src/lib.rs
index 5a7ca15..0be23a1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,6 +16,7 @@ extern crate error_chain;
 extern crate integer_encoding;
 extern crate crypto;
 extern crate rand;
+extern crate protobuf;
 
 #[cfg(test)]
 extern crate tempdir;
@@ -35,5 +36,7 @@ pub use errors::*;
 // Organize code internally (files, modules), but pull it all into a flat namespace to export.
 mod sleep;
 mod register;
+pub mod network_proto;
+pub mod drive_proto;
 pub use sleep::*;
 pub use register::*;
diff --git a/src/dat.proto b/src/network_proto.proto
index 1b7bc2c..1b7bc2c 100644
--- a/src/dat.proto
+++ b/src/network_proto.proto
diff --git a/src/network_proto.rs b/src/network_proto.rs
new file mode 100644
index 0000000..e9dae76
--- /dev/null
+++ b/src/network_proto.rs
@@ -0,0 +1,3199 @@
+// This file is generated. Do not edit
+// @generated
+
+// https://github.com/Manishearth/rust-clippy/issues/702
+#![allow(unknown_lints)]
+#![allow(clippy)]
+
+#![cfg_attr(rustfmt, rustfmt_skip)]
+
+#![allow(box_pointers)]
+#![allow(dead_code)]
+#![allow(missing_docs)]
+#![allow(non_camel_case_types)]
+#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
+#![allow(trivial_casts)]
+#![allow(unsafe_code)]
+#![allow(unused_imports)]
+#![allow(unused_results)]
+
+use protobuf::Message as Message_imported_for_functions;
+use protobuf::ProtobufEnum as ProtobufEnum_imported_for_functions;
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Feed {
+    // message fields
+    discoveryKey: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    nonce: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Feed {}
+
+impl Feed {
+    pub fn new() -> Feed {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Feed {
+        static mut instance: ::protobuf::lazy::Lazy<Feed> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Feed,
+        };
+        unsafe {
+            instance.get(Feed::new)
+        }
+    }
+
+    // required bytes discoveryKey = 1;
+
+    pub fn clear_discoveryKey(&mut self) {
+        self.discoveryKey.clear();
+    }
+
+    pub fn has_discoveryKey(&self) -> bool {
+        self.discoveryKey.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_discoveryKey(&mut self, v: ::std::vec::Vec<u8>) {
+        self.discoveryKey = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_discoveryKey(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.discoveryKey.is_none() {
+            self.discoveryKey.set_default();
+        }
+        self.discoveryKey.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_discoveryKey(&mut self) -> ::std::vec::Vec<u8> {
+        self.discoveryKey.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_discoveryKey(&self) -> &[u8] {
+        match self.discoveryKey.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_discoveryKey_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.discoveryKey
+    }
+
+    fn mut_discoveryKey_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.discoveryKey
+    }
+
+    // optional bytes nonce = 2;
+
+    pub fn clear_nonce(&mut self) {
+        self.nonce.clear();
+    }
+
+    pub fn has_nonce(&self) -> bool {
+        self.nonce.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_nonce(&mut self, v: ::std::vec::Vec<u8>) {
+        self.nonce = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_nonce(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.nonce.is_none() {
+            self.nonce.set_default();
+        }
+        self.nonce.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_nonce(&mut self) -> ::std::vec::Vec<u8> {
+        self.nonce.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_nonce(&self) -> &[u8] {
+        match self.nonce.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_nonce_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.nonce
+    }
+
+    fn mut_nonce_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.nonce
+    }
+}
+
+impl ::protobuf::Message for Feed {
+    fn is_initialized(&self) -> bool {
+        if self.discoveryKey.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.discoveryKey)?;
+                },
+                2 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.nonce)?;
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(ref v) = self.discoveryKey.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(1, &v);
+        }
+        if let Some(ref v) = self.nonce.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(2, &v);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(ref v) = self.discoveryKey.as_ref() {
+            os.write_bytes(1, &v)?;
+        }
+        if let Some(ref v) = self.nonce.as_ref() {
+            os.write_bytes(2, &v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Feed {
+    fn new() -> Feed {
+        Feed::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Feed>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "discoveryKey",
+                    Feed::get_discoveryKey_for_reflect,
+                    Feed::mut_discoveryKey_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "nonce",
+                    Feed::get_nonce_for_reflect,
+                    Feed::mut_nonce_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Feed>(
+                    "Feed",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Feed {
+    fn clear(&mut self) {
+        self.clear_discoveryKey();
+        self.clear_nonce();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Feed {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Feed {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Handshake {
+    // message fields
+    id: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    live: ::std::option::Option<bool>,
+    userData: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    extensions: ::protobuf::RepeatedField<::std::string::String>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Handshake {}
+
+impl Handshake {
+    pub fn new() -> Handshake {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Handshake {
+        static mut instance: ::protobuf::lazy::Lazy<Handshake> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Handshake,
+        };
+        unsafe {
+            instance.get(Handshake::new)
+        }
+    }
+
+    // optional bytes id = 1;
+
+    pub fn clear_id(&mut self) {
+        self.id.clear();
+    }
+
+    pub fn has_id(&self) -> bool {
+        self.id.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_id(&mut self, v: ::std::vec::Vec<u8>) {
+        self.id = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_id(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.id.is_none() {
+            self.id.set_default();
+        }
+        self.id.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_id(&mut self) -> ::std::vec::Vec<u8> {
+        self.id.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_id(&self) -> &[u8] {
+        match self.id.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_id_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.id
+    }
+
+    fn mut_id_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.id
+    }
+
+    // optional bool live = 2;
+
+    pub fn clear_live(&mut self) {
+        self.live = ::std::option::Option::None;
+    }
+
+    pub fn has_live(&self) -> bool {
+        self.live.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_live(&mut self, v: bool) {
+        self.live = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_live(&self) -> bool {
+        self.live.unwrap_or(false)
+    }
+
+    fn get_live_for_reflect(&self) -> &::std::option::Option<bool> {
+        &self.live
+    }
+
+    fn mut_live_for_reflect(&mut self) -> &mut ::std::option::Option<bool> {
+        &mut self.live
+    }
+
+    // optional bytes userData = 3;
+
+    pub fn clear_userData(&mut self) {
+        self.userData.clear();
+    }
+
+    pub fn has_userData(&self) -> bool {
+        self.userData.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_userData(&mut self, v: ::std::vec::Vec<u8>) {
+        self.userData = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_userData(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.userData.is_none() {
+            self.userData.set_default();
+        }
+        self.userData.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_userData(&mut self) -> ::std::vec::Vec<u8> {
+        self.userData.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_userData(&self) -> &[u8] {
+        match self.userData.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_userData_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.userData
+    }
+
+    fn mut_userData_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.userData
+    }
+
+    // repeated string extensions = 4;
+
+    pub fn clear_extensions(&mut self) {
+        self.extensions.clear();
+    }
+
+    // Param is passed by value, moved
+    pub fn set_extensions(&mut self, v: ::protobuf::RepeatedField<::std::string::String>) {
+        self.extensions = v;
+    }
+
+    // Mutable pointer to the field.
+    pub fn mut_extensions(&mut self) -> &mut ::protobuf::RepeatedField<::std::string::String> {
+        &mut self.extensions
+    }
+
+    // Take field
+    pub fn take_extensions(&mut self) -> ::protobuf::RepeatedField<::std::string::String> {
+        ::std::mem::replace(&mut self.extensions, ::protobuf::RepeatedField::new())
+    }
+
+    pub fn get_extensions(&self) -> &[::std::string::String] {
+        &self.extensions
+    }
+
+    fn get_extensions_for_reflect(&self) -> &::protobuf::RepeatedField<::std::string::String> {
+        &self.extensions
+    }
+
+    fn mut_extensions_for_reflect(&mut self) -> &mut ::protobuf::RepeatedField<::std::string::String> {
+        &mut self.extensions
+    }
+}
+
+impl ::protobuf::Message for Handshake {
+    fn is_initialized(&self) -> bool {
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.id)?;
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_bool()?;
+                    self.live = ::std::option::Option::Some(tmp);
+                },
+                3 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.userData)?;
+                },
+                4 => {
+                    ::protobuf::rt::read_repeated_string_into(wire_type, is, &mut self.extensions)?;
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(ref v) = self.id.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(1, &v);
+        }
+        if let Some(v) = self.live {
+            my_size += 2;
+        }
+        if let Some(ref v) = self.userData.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(3, &v);
+        }
+        for value in &self.extensions {
+            my_size += ::protobuf::rt::string_size(4, &value);
+        };
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(ref v) = self.id.as_ref() {
+            os.write_bytes(1, &v)?;
+        }
+        if let Some(v) = self.live {
+            os.write_bool(2, v)?;
+        }
+        if let Some(ref v) = self.userData.as_ref() {
+            os.write_bytes(3, &v)?;
+        }
+        for v in &self.extensions {
+            os.write_string(4, &v)?;
+        };
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Handshake {
+    fn new() -> Handshake {
+        Handshake::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Handshake>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "id",
+                    Handshake::get_id_for_reflect,
+                    Handshake::mut_id_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeBool>(
+                    "live",
+                    Handshake::get_live_for_reflect,
+                    Handshake::mut_live_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "userData",
+                    Handshake::get_userData_for_reflect,
+                    Handshake::mut_userData_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_repeated_field_accessor::<_, ::protobuf::types::ProtobufTypeString>(
+                    "extensions",
+                    Handshake::get_extensions_for_reflect,
+                    Handshake::mut_extensions_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Handshake>(
+                    "Handshake",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Handshake {
+    fn clear(&mut self) {
+        self.clear_id();
+        self.clear_live();
+        self.clear_userData();
+        self.clear_extensions();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Handshake {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Handshake {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Info {
+    // message fields
+    uploading: ::std::option::Option<bool>,
+    downloading: ::std::option::Option<bool>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Info {}
+
+impl Info {
+    pub fn new() -> Info {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Info {
+        static mut instance: ::protobuf::lazy::Lazy<Info> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Info,
+        };
+        unsafe {
+            instance.get(Info::new)
+        }
+    }
+
+    // optional bool uploading = 1;
+
+    pub fn clear_uploading(&mut self) {
+        self.uploading = ::std::option::Option::None;
+    }
+
+    pub fn has_uploading(&self) -> bool {
+        self.uploading.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_uploading(&mut self, v: bool) {
+        self.uploading = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_uploading(&self) -> bool {
+        self.uploading.unwrap_or(false)
+    }
+
+    fn get_uploading_for_reflect(&self) -> &::std::option::Option<bool> {
+        &self.uploading
+    }
+
+    fn mut_uploading_for_reflect(&mut self) -> &mut ::std::option::Option<bool> {
+        &mut self.uploading
+    }
+
+    // optional bool downloading = 2;
+
+    pub fn clear_downloading(&mut self) {
+        self.downloading = ::std::option::Option::None;
+    }
+
+    pub fn has_downloading(&self) -> bool {
+        self.downloading.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_downloading(&mut self, v: bool) {
+        self.downloading = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_downloading(&self) -> bool {
+        self.downloading.unwrap_or(false)
+    }
+
+    fn get_downloading_for_reflect(&self) -> &::std::option::Option<bool> {
+        &self.downloading
+    }
+
+    fn mut_downloading_for_reflect(&mut self) -> &mut ::std::option::Option<bool> {
+        &mut self.downloading
+    }
+}
+
+impl ::protobuf::Message for Info {
+    fn is_initialized(&self) -> bool {
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_bool()?;
+                    self.uploading = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_bool()?;
+                    self.downloading = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.uploading {
+            my_size += 2;
+        }
+        if let Some(v) = self.downloading {
+            my_size += 2;
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.uploading {
+            os.write_bool(1, v)?;
+        }
+        if let Some(v) = self.downloading {
+            os.write_bool(2, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Info {
+    fn new() -> Info {
+        Info::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Info>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeBool>(
+                    "uploading",
+                    Info::get_uploading_for_reflect,
+                    Info::mut_uploading_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeBool>(
+                    "downloading",
+                    Info::get_downloading_for_reflect,
+                    Info::mut_downloading_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Info>(
+                    "Info",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Info {
+    fn clear(&mut self) {
+        self.clear_uploading();
+        self.clear_downloading();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Info {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Info {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Have {
+    // message fields
+    start: ::std::option::Option<u64>,
+    length: ::std::option::Option<u64>,
+    bitfield: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Have {}
+
+impl Have {
+    pub fn new() -> Have {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Have {
+        static mut instance: ::protobuf::lazy::Lazy<Have> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Have,
+        };
+        unsafe {
+            instance.get(Have::new)
+        }
+    }
+
+    // required uint64 start = 1;
+
+    pub fn clear_start(&mut self) {
+        self.start = ::std::option::Option::None;
+    }
+
+    pub fn has_start(&self) -> bool {
+        self.start.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_start(&mut self, v: u64) {
+        self.start = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_start(&self) -> u64 {
+        self.start.unwrap_or(0)
+    }
+
+    fn get_start_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.start
+    }
+
+    fn mut_start_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.start
+    }
+
+    // optional uint64 length = 2;
+
+    pub fn clear_length(&mut self) {
+        self.length = ::std::option::Option::None;
+    }
+
+    pub fn has_length(&self) -> bool {
+        self.length.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_length(&mut self, v: u64) {
+        self.length = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_length(&self) -> u64 {
+        self.length.unwrap_or(1u64)
+    }
+
+    fn get_length_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.length
+    }
+
+    fn mut_length_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.length
+    }
+
+    // optional bytes bitfield = 3;
+
+    pub fn clear_bitfield(&mut self) {
+        self.bitfield.clear();
+    }
+
+    pub fn has_bitfield(&self) -> bool {
+        self.bitfield.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_bitfield(&mut self, v: ::std::vec::Vec<u8>) {
+        self.bitfield = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_bitfield(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.bitfield.is_none() {
+            self.bitfield.set_default();
+        }
+        self.bitfield.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_bitfield(&mut self) -> ::std::vec::Vec<u8> {
+        self.bitfield.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_bitfield(&self) -> &[u8] {
+        match self.bitfield.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_bitfield_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.bitfield
+    }
+
+    fn mut_bitfield_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.bitfield
+    }
+}
+
+impl ::protobuf::Message for Have {
+    fn is_initialized(&self) -> bool {
+        if self.start.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.start = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.length = ::std::option::Option::Some(tmp);
+                },
+                3 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.bitfield)?;
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.start {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.length {
+            my_size += ::protobuf::rt::value_size(2, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(ref v) = self.bitfield.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(3, &v);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.start {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(v) = self.length {
+            os.write_uint64(2, v)?;
+        }
+        if let Some(ref v) = self.bitfield.as_ref() {
+            os.write_bytes(3, &v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Have {
+    fn new() -> Have {
+        Have::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Have>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "start",
+                    Have::get_start_for_reflect,
+                    Have::mut_start_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "length",
+                    Have::get_length_for_reflect,
+                    Have::mut_length_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "bitfield",
+                    Have::get_bitfield_for_reflect,
+                    Have::mut_bitfield_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Have>(
+                    "Have",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Have {
+    fn clear(&mut self) {
+        self.clear_start();
+        self.clear_length();
+        self.clear_bitfield();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Have {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Have {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Unhave {
+    // message fields
+    start: ::std::option::Option<u64>,
+    length: ::std::option::Option<u64>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Unhave {}
+
+impl Unhave {
+    pub fn new() -> Unhave {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Unhave {
+        static mut instance: ::protobuf::lazy::Lazy<Unhave> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Unhave,
+        };
+        unsafe {
+            instance.get(Unhave::new)
+        }
+    }
+
+    // required uint64 start = 1;
+
+    pub fn clear_start(&mut self) {
+        self.start = ::std::option::Option::None;
+    }
+
+    pub fn has_start(&self) -> bool {
+        self.start.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_start(&mut self, v: u64) {
+        self.start = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_start(&self) -> u64 {
+        self.start.unwrap_or(0)
+    }
+
+    fn get_start_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.start
+    }
+
+    fn mut_start_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.start
+    }
+
+    // optional uint64 length = 2;
+
+    pub fn clear_length(&mut self) {
+        self.length = ::std::option::Option::None;
+    }
+
+    pub fn has_length(&self) -> bool {
+        self.length.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_length(&mut self, v: u64) {
+        self.length = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_length(&self) -> u64 {
+        self.length.unwrap_or(1u64)
+    }
+
+    fn get_length_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.length
+    }
+
+    fn mut_length_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.length
+    }
+}
+
+impl ::protobuf::Message for Unhave {
+    fn is_initialized(&self) -> bool {
+        if self.start.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.start = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.length = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.start {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.length {
+            my_size += ::protobuf::rt::value_size(2, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.start {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(v) = self.length {
+            os.write_uint64(2, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Unhave {
+    fn new() -> Unhave {
+        Unhave::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Unhave>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "start",
+                    Unhave::get_start_for_reflect,
+                    Unhave::mut_start_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "length",
+                    Unhave::get_length_for_reflect,
+                    Unhave::mut_length_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Unhave>(
+                    "Unhave",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Unhave {
+    fn clear(&mut self) {
+        self.clear_start();
+        self.clear_length();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Unhave {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Unhave {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Want {
+    // message fields
+    start: ::std::option::Option<u64>,
+    length: ::std::option::Option<u64>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Want {}
+
+impl Want {
+    pub fn new() -> Want {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Want {
+        static mut instance: ::protobuf::lazy::Lazy<Want> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Want,
+        };
+        unsafe {
+            instance.get(Want::new)
+        }
+    }
+
+    // required uint64 start = 1;
+
+    pub fn clear_start(&mut self) {
+        self.start = ::std::option::Option::None;
+    }
+
+    pub fn has_start(&self) -> bool {
+        self.start.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_start(&mut self, v: u64) {
+        self.start = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_start(&self) -> u64 {
+        self.start.unwrap_or(0)
+    }
+
+    fn get_start_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.start
+    }
+
+    fn mut_start_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.start
+    }
+
+    // optional uint64 length = 2;
+
+    pub fn clear_length(&mut self) {
+        self.length = ::std::option::Option::None;
+    }
+
+    pub fn has_length(&self) -> bool {
+        self.length.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_length(&mut self, v: u64) {
+        self.length = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_length(&self) -> u64 {
+        self.length.unwrap_or(0)
+    }
+
+    fn get_length_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.length
+    }
+
+    fn mut_length_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.length
+    }
+}
+
+impl ::protobuf::Message for Want {
+    fn is_initialized(&self) -> bool {
+        if self.start.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.start = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.length = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.start {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.length {
+            my_size += ::protobuf::rt::value_size(2, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.start {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(v) = self.length {
+            os.write_uint64(2, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Want {
+    fn new() -> Want {
+        Want::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Want>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "start",
+                    Want::get_start_for_reflect,
+                    Want::mut_start_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "length",
+                    Want::get_length_for_reflect,
+                    Want::mut_length_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Want>(
+                    "Want",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Want {
+    fn clear(&mut self) {
+        self.clear_start();
+        self.clear_length();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Want {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Want {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Unwant {
+    // message fields
+    start: ::std::option::Option<u64>,
+    length: ::std::option::Option<u64>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Unwant {}
+
+impl Unwant {
+    pub fn new() -> Unwant {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Unwant {
+        static mut instance: ::protobuf::lazy::Lazy<Unwant> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Unwant,
+        };
+        unsafe {
+            instance.get(Unwant::new)
+        }
+    }
+
+    // required uint64 start = 1;
+
+    pub fn clear_start(&mut self) {
+        self.start = ::std::option::Option::None;
+    }
+
+    pub fn has_start(&self) -> bool {
+        self.start.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_start(&mut self, v: u64) {
+        self.start = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_start(&self) -> u64 {
+        self.start.unwrap_or(0)
+    }
+
+    fn get_start_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.start
+    }
+
+    fn mut_start_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.start
+    }
+
+    // optional uint64 length = 2;
+
+    pub fn clear_length(&mut self) {
+        self.length = ::std::option::Option::None;
+    }
+
+    pub fn has_length(&self) -> bool {
+        self.length.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_length(&mut self, v: u64) {
+        self.length = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_length(&self) -> u64 {
+        self.length.unwrap_or(0)
+    }
+
+    fn get_length_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.length
+    }
+
+    fn mut_length_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.length
+    }
+}
+
+impl ::protobuf::Message for Unwant {
+    fn is_initialized(&self) -> bool {
+        if self.start.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.start = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.length = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.start {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.length {
+            my_size += ::protobuf::rt::value_size(2, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.start {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(v) = self.length {
+            os.write_uint64(2, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Unwant {
+    fn new() -> Unwant {
+        Unwant::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Unwant>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "start",
+                    Unwant::get_start_for_reflect,
+                    Unwant::mut_start_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "length",
+                    Unwant::get_length_for_reflect,
+                    Unwant::mut_length_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Unwant>(
+                    "Unwant",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Unwant {
+    fn clear(&mut self) {
+        self.clear_start();
+        self.clear_length();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Unwant {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Unwant {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Request {
+    // message fields
+    index: ::std::option::Option<u64>,
+    bytes: ::std::option::Option<u64>,
+    hash: ::std::option::Option<bool>,
+    nodes: ::std::option::Option<u64>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Request {}
+
+impl Request {
+    pub fn new() -> Request {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Request {
+        static mut instance: ::protobuf::lazy::Lazy<Request> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Request,
+        };
+        unsafe {
+            instance.get(Request::new)
+        }
+    }
+
+    // required uint64 index = 1;
+
+    pub fn clear_index(&mut self) {
+        self.index = ::std::option::Option::None;
+    }
+
+    pub fn has_index(&self) -> bool {
+        self.index.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_index(&mut self, v: u64) {
+        self.index = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_index(&self) -> u64 {
+        self.index.unwrap_or(0)
+    }
+
+    fn get_index_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.index
+    }
+
+    fn mut_index_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.index
+    }
+
+    // optional uint64 bytes = 2;
+
+    pub fn clear_bytes(&mut self) {
+        self.bytes = ::std::option::Option::None;
+    }
+
+    pub fn has_bytes(&self) -> bool {
+        self.bytes.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_bytes(&mut self, v: u64) {
+        self.bytes = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_bytes(&self) -> u64 {
+        self.bytes.unwrap_or(0)
+    }
+
+    fn get_bytes_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.bytes
+    }
+
+    fn mut_bytes_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.bytes
+    }
+
+    // optional bool hash = 3;
+
+    pub fn clear_hash(&mut self) {
+        self.hash = ::std::option::Option::None;
+    }
+
+    pub fn has_hash(&self) -> bool {
+        self.hash.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_hash(&mut self, v: bool) {
+        self.hash = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_hash(&self) -> bool {
+        self.hash.unwrap_or(false)
+    }
+
+    fn get_hash_for_reflect(&self) -> &::std::option::Option<bool> {
+        &self.hash
+    }
+
+    fn mut_hash_for_reflect(&mut self) -> &mut ::std::option::Option<bool> {
+        &mut self.hash
+    }
+
+    // optional uint64 nodes = 4;
+
+    pub fn clear_nodes(&mut self) {
+        self.nodes = ::std::option::Option::None;
+    }
+
+    pub fn has_nodes(&self) -> bool {
+        self.nodes.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_nodes(&mut self, v: u64) {
+        self.nodes = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_nodes(&self) -> u64 {
+        self.nodes.unwrap_or(0)
+    }
+
+    fn get_nodes_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.nodes
+    }
+
+    fn mut_nodes_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.nodes
+    }
+}
+
+impl ::protobuf::Message for Request {
+    fn is_initialized(&self) -> bool {
+        if self.index.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.index = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.bytes = ::std::option::Option::Some(tmp);
+                },
+                3 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_bool()?;
+                    self.hash = ::std::option::Option::Some(tmp);
+                },
+                4 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.nodes = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.index {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.bytes {
+            my_size += ::protobuf::rt::value_size(2, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.hash {
+            my_size += 2;
+        }
+        if let Some(v) = self.nodes {
+            my_size += ::protobuf::rt::value_size(4, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.index {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(v) = self.bytes {
+            os.write_uint64(2, v)?;
+        }
+        if let Some(v) = self.hash {
+            os.write_bool(3, v)?;
+        }
+        if let Some(v) = self.nodes {
+            os.write_uint64(4, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Request {
+    fn new() -> Request {
+        Request::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Request>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "index",
+                    Request::get_index_for_reflect,
+                    Request::mut_index_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "bytes",
+                    Request::get_bytes_for_reflect,
+                    Request::mut_bytes_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeBool>(
+                    "hash",
+                    Request::get_hash_for_reflect,
+                    Request::mut_hash_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "nodes",
+                    Request::get_nodes_for_reflect,
+                    Request::mut_nodes_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Request>(
+                    "Request",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Request {
+    fn clear(&mut self) {
+        self.clear_index();
+        self.clear_bytes();
+        self.clear_hash();
+        self.clear_nodes();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Request {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Request {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Cancel {
+    // message fields
+    index: ::std::option::Option<u64>,
+    bytes: ::std::option::Option<u64>,
+    hash: ::std::option::Option<bool>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Cancel {}
+
+impl Cancel {
+    pub fn new() -> Cancel {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Cancel {
+        static mut instance: ::protobuf::lazy::Lazy<Cancel> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Cancel,
+        };
+        unsafe {
+            instance.get(Cancel::new)
+        }
+    }
+
+    // required uint64 index = 1;
+
+    pub fn clear_index(&mut self) {
+        self.index = ::std::option::Option::None;
+    }
+
+    pub fn has_index(&self) -> bool {
+        self.index.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_index(&mut self, v: u64) {
+        self.index = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_index(&self) -> u64 {
+        self.index.unwrap_or(0)
+    }
+
+    fn get_index_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.index
+    }
+
+    fn mut_index_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.index
+    }
+
+    // optional uint64 bytes = 2;
+
+    pub fn clear_bytes(&mut self) {
+        self.bytes = ::std::option::Option::None;
+    }
+
+    pub fn has_bytes(&self) -> bool {
+        self.bytes.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_bytes(&mut self, v: u64) {
+        self.bytes = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_bytes(&self) -> u64 {
+        self.bytes.unwrap_or(0)
+    }
+
+    fn get_bytes_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.bytes
+    }
+
+    fn mut_bytes_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.bytes
+    }
+
+    // optional bool hash = 3;
+
+    pub fn clear_hash(&mut self) {
+        self.hash = ::std::option::Option::None;
+    }
+
+    pub fn has_hash(&self) -> bool {
+        self.hash.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_hash(&mut self, v: bool) {
+        self.hash = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_hash(&self) -> bool {
+        self.hash.unwrap_or(false)
+    }
+
+    fn get_hash_for_reflect(&self) -> &::std::option::Option<bool> {
+        &self.hash
+    }
+
+    fn mut_hash_for_reflect(&mut self) -> &mut ::std::option::Option<bool> {
+        &mut self.hash
+    }
+}
+
+impl ::protobuf::Message for Cancel {
+    fn is_initialized(&self) -> bool {
+        if self.index.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.index = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.bytes = ::std::option::Option::Some(tmp);
+                },
+                3 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_bool()?;
+                    self.hash = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.index {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.bytes {
+            my_size += ::protobuf::rt::value_size(2, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(v) = self.hash {
+            my_size += 2;
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.index {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(v) = self.bytes {
+            os.write_uint64(2, v)?;
+        }
+        if let Some(v) = self.hash {
+            os.write_bool(3, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Cancel {
+    fn new() -> Cancel {
+        Cancel::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Cancel>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "index",
+                    Cancel::get_index_for_reflect,
+                    Cancel::mut_index_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "bytes",
+                    Cancel::get_bytes_for_reflect,
+                    Cancel::mut_bytes_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeBool>(
+                    "hash",
+                    Cancel::get_hash_for_reflect,
+                    Cancel::mut_hash_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Cancel>(
+                    "Cancel",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Cancel {
+    fn clear(&mut self) {
+        self.clear_index();
+        self.clear_bytes();
+        self.clear_hash();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Cancel {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Cancel {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Data {
+    // message fields
+    index: ::std::option::Option<u64>,
+    value: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    nodes: ::protobuf::RepeatedField<Data_Node>,
+    signature: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Data {}
+
+impl Data {
+    pub fn new() -> Data {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Data {
+        static mut instance: ::protobuf::lazy::Lazy<Data> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Data,
+        };
+        unsafe {
+            instance.get(Data::new)
+        }
+    }
+
+    // required uint64 index = 1;
+
+    pub fn clear_index(&mut self) {
+        self.index = ::std::option::Option::None;
+    }
+
+    pub fn has_index(&self) -> bool {
+        self.index.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_index(&mut self, v: u64) {
+        self.index = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_index(&self) -> u64 {
+        self.index.unwrap_or(0)
+    }
+
+    fn get_index_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.index
+    }
+
+    fn mut_index_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.index
+    }
+
+    // optional bytes value = 2;
+
+    pub fn clear_value(&mut self) {
+        self.value.clear();
+    }
+
+    pub fn has_value(&self) -> bool {
+        self.value.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_value(&mut self, v: ::std::vec::Vec<u8>) {
+        self.value = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_value(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.value.is_none() {
+            self.value.set_default();
+        }
+        self.value.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_value(&mut self) -> ::std::vec::Vec<u8> {
+        self.value.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_value(&self) -> &[u8] {
+        match self.value.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_value_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.value
+    }
+
+    fn mut_value_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.value
+    }
+
+    // repeated .Data.Node nodes = 3;
+
+    pub fn clear_nodes(&mut self) {
+        self.nodes.clear();
+    }
+
+    // Param is passed by value, moved
+    pub fn set_nodes(&mut self, v: ::protobuf::RepeatedField<Data_Node>) {
+        self.nodes = v;
+    }
+
+    // Mutable pointer to the field.
+    pub fn mut_nodes(&mut self) -> &mut ::protobuf::RepeatedField<Data_Node> {
+        &mut self.nodes
+    }
+
+    // Take field
+    pub fn take_nodes(&mut self) -> ::protobuf::RepeatedField<Data_Node> {
+        ::std::mem::replace(&mut self.nodes, ::protobuf::RepeatedField::new())
+    }
+
+    pub fn get_nodes(&self) -> &[Data_Node] {
+        &self.nodes
+    }
+
+    fn get_nodes_for_reflect(&self) -> &::protobuf::RepeatedField<Data_Node> {
+        &self.nodes
+    }
+
+    fn mut_nodes_for_reflect(&mut self) -> &mut ::protobuf::RepeatedField<Data_Node> {
+        &mut self.nodes
+    }
+
+    // optional bytes signature = 4;
+
+    pub fn clear_signature(&mut self) {
+        self.signature.clear();
+    }
+
+    pub fn has_signature(&self) -> bool {
+        self.signature.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_signature(&mut self, v: ::std::vec::Vec<u8>) {
+        self.signature = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_signature(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.signature.is_none() {
+            self.signature.set_default();
+        }
+        self.signature.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_signature(&mut self) -> ::std::vec::Vec<u8> {
+        self.signature.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_signature(&self) -> &[u8] {
+        match self.signature.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_signature_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.signature
+    }
+
+    fn mut_signature_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.signature
+    }
+}
+
+impl ::protobuf::Message for Data {
+    fn is_initialized(&self) -> bool {
+        if self.index.is_none() {
+            return false;
+        }
+        for v in &self.nodes {
+            if !v.is_initialized() {
+                return false;
+            }
+        };
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.index = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.value)?;
+                },
+                3 => {
+                    ::protobuf::rt::read_repeated_message_into(wire_type, is, &mut self.nodes)?;
+                },
+                4 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.signature)?;
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.index {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(ref v) = self.value.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(2, &v);
+        }
+        for value in &self.nodes {
+            let len = value.compute_size();
+            my_size += 1 + ::protobuf::rt::compute_raw_varint32_size(len) + len;
+        };
+        if let Some(ref v) = self.signature.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(4, &v);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.index {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(ref v) = self.value.as_ref() {
+            os.write_bytes(2, &v)?;
+        }
+        for v in &self.nodes {
+            os.write_tag(3, ::protobuf::wire_format::WireTypeLengthDelimited)?;
+            os.write_raw_varint32(v.get_cached_size())?;
+            v.write_to_with_cached_sizes(os)?;
+        };
+        if let Some(ref v) = self.signature.as_ref() {
+            os.write_bytes(4, &v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Data {
+    fn new() -> Data {
+        Data::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Data>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "index",
+                    Data::get_index_for_reflect,
+                    Data::mut_index_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "value",
+                    Data::get_value_for_reflect,
+                    Data::mut_value_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_repeated_field_accessor::<_, ::protobuf::types::ProtobufTypeMessage<Data_Node>>(
+                    "nodes",
+                    Data::get_nodes_for_reflect,
+                    Data::mut_nodes_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "signature",
+                    Data::get_signature_for_reflect,
+                    Data::mut_signature_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Data>(
+                    "Data",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Data {
+    fn clear(&mut self) {
+        self.clear_index();
+        self.clear_value();
+        self.clear_nodes();
+        self.clear_signature();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Data {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Data {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+#[derive(PartialEq,Clone,Default)]
+pub struct Data_Node {
+    // message fields
+    index: ::std::option::Option<u64>,
+    hash: ::protobuf::SingularField<::std::vec::Vec<u8>>,
+    size: ::std::option::Option<u64>,
+    // special fields
+    unknown_fields: ::protobuf::UnknownFields,
+    cached_size: ::protobuf::CachedSize,
+}
+
+// see codegen.rs for the explanation why impl Sync explicitly
+unsafe impl ::std::marker::Sync for Data_Node {}
+
+impl Data_Node {
+    pub fn new() -> Data_Node {
+        ::std::default::Default::default()
+    }
+
+    pub fn default_instance() -> &'static Data_Node {
+        static mut instance: ::protobuf::lazy::Lazy<Data_Node> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const Data_Node,
+        };
+        unsafe {
+            instance.get(Data_Node::new)
+        }
+    }
+
+    // required uint64 index = 1;
+
+    pub fn clear_index(&mut self) {
+        self.index = ::std::option::Option::None;
+    }
+
+    pub fn has_index(&self) -> bool {
+        self.index.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_index(&mut self, v: u64) {
+        self.index = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_index(&self) -> u64 {
+        self.index.unwrap_or(0)
+    }
+
+    fn get_index_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.index
+    }
+
+    fn mut_index_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.index
+    }
+
+    // required bytes hash = 2;
+
+    pub fn clear_hash(&mut self) {
+        self.hash.clear();
+    }
+
+    pub fn has_hash(&self) -> bool {
+        self.hash.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_hash(&mut self, v: ::std::vec::Vec<u8>) {
+        self.hash = ::protobuf::SingularField::some(v);
+    }
+
+    // Mutable pointer to the field.
+    // If field is not initialized, it is initialized with default value first.
+    pub fn mut_hash(&mut self) -> &mut ::std::vec::Vec<u8> {
+        if self.hash.is_none() {
+            self.hash.set_default();
+        }
+        self.hash.as_mut().unwrap()
+    }
+
+    // Take field
+    pub fn take_hash(&mut self) -> ::std::vec::Vec<u8> {
+        self.hash.take().unwrap_or_else(|| ::std::vec::Vec::new())
+    }
+
+    pub fn get_hash(&self) -> &[u8] {
+        match self.hash.as_ref() {
+            Some(v) => &v,
+            None => &[],
+        }
+    }
+
+    fn get_hash_for_reflect(&self) -> &::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &self.hash
+    }
+
+    fn mut_hash_for_reflect(&mut self) -> &mut ::protobuf::SingularField<::std::vec::Vec<u8>> {
+        &mut self.hash
+    }
+
+    // required uint64 size = 3;
+
+    pub fn clear_size(&mut self) {
+        self.size = ::std::option::Option::None;
+    }
+
+    pub fn has_size(&self) -> bool {
+        self.size.is_some()
+    }
+
+    // Param is passed by value, moved
+    pub fn set_size(&mut self, v: u64) {
+        self.size = ::std::option::Option::Some(v);
+    }
+
+    pub fn get_size(&self) -> u64 {
+        self.size.unwrap_or(0)
+    }
+
+    fn get_size_for_reflect(&self) -> &::std::option::Option<u64> {
+        &self.size
+    }
+
+    fn mut_size_for_reflect(&mut self) -> &mut ::std::option::Option<u64> {
+        &mut self.size
+    }
+}
+
+impl ::protobuf::Message for Data_Node {
+    fn is_initialized(&self) -> bool {
+        if self.index.is_none() {
+            return false;
+        }
+        if self.hash.is_none() {
+            return false;
+        }
+        if self.size.is_none() {
+            return false;
+        }
+        true
+    }
+
+    fn merge_from(&mut self, is: &mut ::protobuf::CodedInputStream) -> ::protobuf::ProtobufResult<()> {
+        while !is.eof()? {
+            let (field_number, wire_type) = is.read_tag_unpack()?;
+            match field_number {
+                1 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.index = ::std::option::Option::Some(tmp);
+                },
+                2 => {
+                    ::protobuf::rt::read_singular_bytes_into(wire_type, is, &mut self.hash)?;
+                },
+                3 => {
+                    if wire_type != ::protobuf::wire_format::WireTypeVarint {
+                        return ::std::result::Result::Err(::protobuf::rt::unexpected_wire_type(wire_type));
+                    }
+                    let tmp = is.read_uint64()?;
+                    self.size = ::std::option::Option::Some(tmp);
+                },
+                _ => {
+                    ::protobuf::rt::read_unknown_or_skip_group(field_number, wire_type, is, self.mut_unknown_fields())?;
+                },
+            };
+        }
+        ::std::result::Result::Ok(())
+    }
+
+    // Compute sizes of nested messages
+    #[allow(unused_variables)]
+    fn compute_size(&self) -> u32 {
+        let mut my_size = 0;
+        if let Some(v) = self.index {
+            my_size += ::protobuf::rt::value_size(1, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        if let Some(ref v) = self.hash.as_ref() {
+            my_size += ::protobuf::rt::bytes_size(2, &v);
+        }
+        if let Some(v) = self.size {
+            my_size += ::protobuf::rt::value_size(3, v, ::protobuf::wire_format::WireTypeVarint);
+        }
+        my_size += ::protobuf::rt::unknown_fields_size(self.get_unknown_fields());
+        self.cached_size.set(my_size);
+        my_size
+    }
+
+    fn write_to_with_cached_sizes(&self, os: &mut ::protobuf::CodedOutputStream) -> ::protobuf::ProtobufResult<()> {
+        if let Some(v) = self.index {
+            os.write_uint64(1, v)?;
+        }
+        if let Some(ref v) = self.hash.as_ref() {
+            os.write_bytes(2, &v)?;
+        }
+        if let Some(v) = self.size {
+            os.write_uint64(3, v)?;
+        }
+        os.write_unknown_fields(self.get_unknown_fields())?;
+        ::std::result::Result::Ok(())
+    }
+
+    fn get_cached_size(&self) -> u32 {
+        self.cached_size.get()
+    }
+
+    fn get_unknown_fields(&self) -> &::protobuf::UnknownFields {
+        &self.unknown_fields
+    }
+
+    fn mut_unknown_fields(&mut self) -> &mut ::protobuf::UnknownFields {
+        &mut self.unknown_fields
+    }
+
+    fn as_any(&self) -> &::std::any::Any {
+        self as &::std::any::Any
+    }
+    fn as_any_mut(&mut self) -> &mut ::std::any::Any {
+        self as &mut ::std::any::Any
+    }
+    fn into_any(self: Box<Self>) -> ::std::boxed::Box<::std::any::Any> {
+        self
+    }
+
+    fn descriptor(&self) -> &'static ::protobuf::reflect::MessageDescriptor {
+        ::protobuf::MessageStatic::descriptor_static(None::<Self>)
+    }
+}
+
+impl ::protobuf::MessageStatic for Data_Node {
+    fn new() -> Data_Node {
+        Data_Node::new()
+    }
+
+    fn descriptor_static(_: ::std::option::Option<Data_Node>) -> &'static ::protobuf::reflect::MessageDescriptor {
+        static mut descriptor: ::protobuf::lazy::Lazy<::protobuf::reflect::MessageDescriptor> = ::protobuf::lazy::Lazy {
+            lock: ::protobuf::lazy::ONCE_INIT,
+            ptr: 0 as *const ::protobuf::reflect::MessageDescriptor,
+        };
+        unsafe {
+            descriptor.get(|| {
+                let mut fields = ::std::vec::Vec::new();
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "index",
+                    Data_Node::get_index_for_reflect,
+                    Data_Node::mut_index_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_singular_field_accessor::<_, ::protobuf::types::ProtobufTypeBytes>(
+                    "hash",
+                    Data_Node::get_hash_for_reflect,
+                    Data_Node::mut_hash_for_reflect,
+                ));
+                fields.push(::protobuf::reflect::accessor::make_option_accessor::<_, ::protobuf::types::ProtobufTypeUint64>(
+                    "size",
+                    Data_Node::get_size_for_reflect,
+                    Data_Node::mut_size_for_reflect,
+                ));
+                ::protobuf::reflect::MessageDescriptor::new::<Data_Node>(
+                    "Data_Node",
+                    fields,
+                    file_descriptor_proto()
+                )
+            })
+        }
+    }
+}
+
+impl ::protobuf::Clear for Data_Node {
+    fn clear(&mut self) {
+        self.clear_index();
+        self.clear_hash();
+        self.clear_size();
+        self.unknown_fields.clear();
+    }
+}
+
+impl ::std::fmt::Debug for Data_Node {
+    fn fmt(&self, f: &mut ::std::fmt::Formatter) -> ::std::fmt::Result {
+        ::protobuf::text_format::fmt(self, f)
+    }
+}
+
+impl ::protobuf::reflect::ProtobufValue for Data_Node {
+    fn as_ref(&self) -> ::protobuf::reflect::ProtobufValueRef {
+        ::protobuf::reflect::ProtobufValueRef::Message(self)
+    }
+}
+
+static file_descriptor_proto_data: &'static [u8] = b"\
+    \n\tdat.proto\"@\n\x04Feed\x12\"\n\x0cdiscoveryKey\x18\x01\x20\x02(\x0cR\
+    \x0cdiscoveryKey\x12\x14\n\x05nonce\x18\x02\x20\x01(\x0cR\x05nonce\"k\n\
+    \tHandshake\x12\x0e\n\x02id\x18\x01\x20\x01(\x0cR\x02id\x12\x12\n\x04liv\
+    e\x18\x02\x20\x01(\x08R\x04live\x12\x1a\n\x08userData\x18\x03\x20\x01(\
+    \x0cR\x08userData\x12\x1e\n\nextensions\x18\x04\x20\x03(\tR\nextensions\
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+    \x03D\x14\x19\n\x0e\n\x07\x04\t\x03\0\x02\0\x03\x12\x03D\x1c\x1d\n\r\n\
+    \x06\x04\t\x03\0\x02\x01\x12\x03E\x04\x1c\n\x0e\n\x07\x04\t\x03\0\x02\
+    \x01\x04\x12\x03E\x04\x0c\n\x0e\n\x07\x04\t\x03\0\x02\x01\x05\x12\x03E\r\
+    \x12\n\x0e\n\x07\x04\t\x03\0\x02\x01\x01\x12\x03E\x13\x17\n\x0e\n\x07\
+    \x04\t\x03\0\x02\x01\x03\x12\x03E\x1a\x1b\n\r\n\x06\x04\t\x03\0\x02\x02\
+    \x12\x03F\x04\x1d\n\x0e\n\x07\x04\t\x03\0\x02\x02\x04\x12\x03F\x04\x0c\n\
+    \x0e\n\x07\x04\t\x03\0\x02\x02\x05\x12\x03F\r\x13\n\x0e\n\x07\x04\t\x03\
+    \0\x02\x02\x01\x12\x03F\x14\x18\n\x0e\n\x07\x04\t\x03\0\x02\x02\x03\x12\
+    \x03F\x1b\x1c\n\x0b\n\x04\x04\t\x02\0\x12\x03I\x02\x1c\n\x0c\n\x05\x04\t\
+    \x02\0\x04\x12\x03I\x02\n\n\x0c\n\x05\x04\t\x02\0\x05\x12\x03I\x0b\x11\n\
+    \x0c\n\x05\x04\t\x02\0\x01\x12\x03I\x12\x17\n\x0c\n\x05\x04\t\x02\0\x03\
+    \x12\x03I\x1a\x1b\n\x0b\n\x04\x04\t\x02\x01\x12\x03J\x02\x1b\n\x0c\n\x05\
+    \x04\t\x02\x01\x04\x12\x03J\x02\n\n\x0c\n\x05\x04\t\x02\x01\x05\x12\x03J\
+    \x0b\x10\n\x0c\n\x05\x04\t\x02\x01\x01\x12\x03J\x11\x16\n\x0c\n\x05\x04\
+    \t\x02\x01\x03\x12\x03J\x19\x1a\n\x0b\n\x04\x04\t\x02\x02\x12\x03K\x02\
+    \x1a\n\x0c\n\x05\x04\t\x02\x02\x04\x12\x03K\x02\n\n\x0c\n\x05\x04\t\x02\
+    \x02\x06\x12\x03K\x0b\x0f\n\x0c\n\x05\x04\t\x02\x02\x01\x12\x03K\x10\x15\
+    \n\x0c\n\x05\x04\t\x02\x02\x03\x12\x03K\x18\x19\n\x0b\n\x04\x04\t\x02\
+    \x03\x12\x03L\x02\x1f\n\x0c\n\x05\x04\t\x02\x03\x04\x12\x03L\x02\n\n\x0c\
+    \n\x05\x04\t\x02\x03\x05\x12\x03L\x0b\x10\n\x0c\n\x05\x04\t\x02\x03\x01\
+    \x12\x03L\x11\x1a\n\x0c\n\x05\x04\t\x02\x03\x03\x12\x03L\x1d\x1e\
+";
+
+static mut file_descriptor_proto_lazy: ::protobuf::lazy::Lazy<::protobuf::descriptor::FileDescriptorProto> = ::protobuf::lazy::Lazy {
+    lock: ::protobuf::lazy::ONCE_INIT,
+    ptr: 0 as *const ::protobuf::descriptor::FileDescriptorProto,
+};
+
+fn parse_descriptor_proto() -> ::protobuf::descriptor::FileDescriptorProto {
+    ::protobuf::parse_from_bytes(file_descriptor_proto_data).unwrap()
+}
+
+pub fn file_descriptor_proto() -> &'static ::protobuf::descriptor::FileDescriptorProto {
+    unsafe {
+        file_descriptor_proto_lazy.get(|| {
+            parse_descriptor_proto()
+        })
+    }
+}