move proto and V4Mangle to hbb_common

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "libs/hbb_common"]
+	path = libs/hbb_common
+	url = https://github.com/open-trade/hbb_common

Cargo.lock

@@ -151,6 +151,14 @@ dependencies = [
  "slab 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "hbb_common"
+version = "0.1.0"
+dependencies = [
+ "protobuf 2.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "protobuf-codegen-pure 2.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "hbbs"
 version = "0.1.0"
@@ -158,9 +166,8 @@ dependencies = [
  "bytes 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "hbb_common 0.1.0",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "protobuf 2.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "protobuf-codegen-pure 2.10.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "simple-error 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "tokio-util 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

@@ -8,13 +8,14 @@ edition = "2018"
 
 [dependencies]
 tokio = { version = "0.2", features = ["full"] }
-protobuf = "2.10"
 tokio-util = { version = "0.3", features = ["full"] }
 log = "0.4"
 env_logger = "0.7"
 futures = "0.3"
 bytes = "0.5"
 simple-error = "0.2"
+hbb_common = { path = "libs/hbb_common" }
+
+[workspace]
+members = ['libs/hbb_common']
 
-[build-dependencies]
-protobuf-codegen-pure = "2.10"

build.rs

@@ -1,10 +0,0 @@
-fn main() {
-    protobuf_codegen_pure::run(protobuf_codegen_pure::Args {
-        out_dir: "src/protos",
-        input: &["protos/message.proto"],
-        includes: &["protos"],
-        customize: protobuf_codegen_pure::Customize {
-            ..Default::default()
-        },
-    }).unwrap();
-}

libs/hbb_common

@@ -0,0 +1 @@
+Subproject commit 938076d06af0efa532ce2372a051ae69f2136720

protos/message.proto

@@ -1,22 +0,0 @@
-syntax = "proto3";
-package hbb;
-
-message RegisterPeer {
-  string hbb_addr = 1;
-}
-
-message PeekPeer {
-  string hbb_addr = 1;
-}
-
-message PeekPeerResponse {
-  bytes socket_addr = 1;
-}
-
-message Message {
-  oneof union {
-    RegisterPeer register_peer = 6;
-    PeekPeer peek_peer = 7;
-    PeekPeerResponse peek_peer_response = 8;
-  }
-}

src/lib.rs

@@ -1,5 +1,2 @@
 mod rendezvous_server;
 pub use rendezvous_server::*;
-#[path = "./protos/message.rs"]
-mod message_proto;
-pub use message_proto::*;

src/rendezvous_server.rs

@@ -1,53 +1,19 @@
-use super::message_proto::*;
 use bytes::{Bytes, BytesMut};
 use futures::SinkExt;
-use protobuf::{parse_from_bytes, Message as _};
+use hbb_common::{
+    message_proto::*,
+    protobuf::{parse_from_bytes, Message as _},
+    V4AddrMangle,
+};
 use std::{
     collections::HashMap,
     error::Error,
-    net::{Ipv4Addr, SocketAddr, SocketAddrV4},
-    time::{Duration, SystemTime, UNIX_EPOCH},
+    net::{SocketAddr, SocketAddrV4},
+    time::Duration,
 };
 use tokio::{net::UdpSocket, stream::StreamExt, time::delay_for};
 use tokio_util::{codec::BytesCodec, udp::UdpFramed};
 
-/// Certain router and firewalls scan the packet and if they
-/// find an IP address belonging to their pool that they use to do the NAT mapping/translation, so here we mangle the ip address
-
-pub struct V4AddrMangle();
-
-impl V4AddrMangle {
-    pub fn encode(addr: &SocketAddrV4) -> Vec<u8> {
-        let tm = (SystemTime::now()
-            .duration_since(UNIX_EPOCH)
-            .unwrap()
-            .as_micros() as u32) as u128;
-        let ip = u32::from_ne_bytes(addr.ip().octets()) as u128;
-        let port = addr.port() as u128;
-        let v = ((ip + tm) << 49) | (tm << 17) | (port + (tm & 0xFFFF));
-        let bytes = v.to_ne_bytes();
-        let mut n_padding = 0;
-        for i in bytes.iter().rev() {
-            if i == &0u8 {
-                n_padding += 1;
-            } else {
-                break;
-            }
-        }
-        bytes[..(16 - n_padding)].to_vec()
-    }
-
-    pub fn decode(bytes: &[u8]) -> SocketAddrV4 {
-        let mut padded = [0u8; 16];
-        padded[..bytes.len()].copy_from_slice(&bytes);
-        let number = u128::from_ne_bytes(padded);
-        let tm = (number >> 17) & (u32::max_value() as u128);
-        let ip = (((number >> 49) - tm) as u32).to_ne_bytes();
-        let port = (number & 0xFFFFFF) - (tm & 0xFFFF);
-        SocketAddrV4::new(Ipv4Addr::new(ip[0], ip[1], ip[2], ip[3]), port as u16)
-    }
-}
-
 pub struct Peer {
     socket_addr: SocketAddrV4,
 }
@@ -127,11 +93,6 @@ pub async fn sleep(sec: f32) {
 #[cfg(test)]
 mod tests {
     use super::*;
-    #[test]
-    fn test_mangle() {
-        let addr = SocketAddrV4::new(Ipv4Addr::new(192, 168, 16, 32), 21116);
-        assert_eq!(addr, V4AddrMangle::decode(&V4AddrMangle::encode(&addr)[..]));
-    }
 
     #[allow(unused_must_use)]
     #[tokio::main]