adding asym crypto, fixing txt, appending logs

This commit is contained in:
Andy Pack 2024-02-08 17:22:06 +00:00
parent fdc8a7e338
commit aa78441e5a
Signed by: sarsoo
GPG Key ID: A55BA3536A5E0ED7
12 changed files with 562 additions and 20 deletions

381
Cargo.lock generated
View File

@ -2,6 +2,42 @@
# It is not intended for manual editing.
version = 3
[[package]]
name = "aead"
version = "0.5.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d122413f284cf2d62fb1b7db97e02edb8cda96d769b16e443a4f6195e35662b0"
dependencies = [
"crypto-common",
"generic-array",
]
[[package]]
name = "aes"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac1f845298e95f983ff1944b728ae08b8cebab80d684f0a832ed0fc74dfa27e2"
dependencies = [
"cfg-if",
"cipher",
"cpufeatures",
]
[[package]]
name = "aes-gcm-siv"
version = "0.11.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ae0784134ba9375416d469ec31e7c5f9fa94405049cf08c5ce5b4698be673e0d"
dependencies = [
"aead",
"aes",
"cipher",
"ctr",
"polyval",
"subtle",
"zeroize",
]
[[package]]
name = "anstream"
version = "0.6.11"
@ -50,12 +86,43 @@ dependencies = [
"windows-sys",
]
[[package]]
name = "base16ct"
version = "0.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4c7f02d4ea65f2c1853089ffd8d2787bdbc63de2f0d29dedbcf8ccdfa0ccd4cf"
[[package]]
name = "base64ct"
version = "1.6.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "8c3c1a368f70d6cf7302d78f8f7093da241fb8e8807c05cc9e51a125895a6d5b"
[[package]]
name = "block-buffer"
version = "0.10.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
dependencies = [
"generic-array",
]
[[package]]
name = "cfg-if"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
[[package]]
name = "cipher"
version = "0.4.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "773f3b9af64447d2ce9850330c473515014aa235e6a783b02db81ff39e4a3dad"
dependencies = [
"crypto-common",
"inout",
]
[[package]]
name = "clap"
version = "4.4.18"
@ -102,6 +169,64 @@ version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
[[package]]
name = "const-oid"
version = "0.9.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
[[package]]
name = "cpufeatures"
version = "0.2.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "53fe5e26ff1b7aef8bca9c6080520cfb8d9333c7568e1829cef191a9723e5504"
dependencies = [
"libc",
]
[[package]]
name = "crypto-bigint"
version = "0.5.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0dc92fb57ca44df6db8059111ab3af99a63d5d0f8375d9972e319a379c6bab76"
dependencies = [
"generic-array",
"rand_core",
"subtle",
"zeroize",
]
[[package]]
name = "crypto-common"
version = "0.1.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
dependencies = [
"generic-array",
"rand_core",
"typenum",
]
[[package]]
name = "ctr"
version = "0.9.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0369ee1ad671834580515889b80f2ea915f23b8be8d0daa4bbaf2ac5c7590835"
dependencies = [
"cipher",
]
[[package]]
name = "der"
version = "0.7.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fffa369a668c8af7dbf8b5e56c9f744fbd399949ed171606040001947de40b1c"
dependencies = [
"const-oid",
"pem-rfc7468",
"zeroize",
]
[[package]]
name = "deranged"
version = "0.3.11"
@ -111,6 +236,18 @@ dependencies = [
"powerfmt",
]
[[package]]
name = "digest"
version = "0.10.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
dependencies = [
"block-buffer",
"const-oid",
"crypto-common",
"subtle",
]
[[package]]
name = "dnstp"
version = "0.1.0"
@ -136,10 +273,69 @@ dependencies = [
name = "dnstplib"
version = "0.1.0"
dependencies = [
"aes-gcm-siv",
"log",
"p256",
"rand_core",
"urlencoding",
]
[[package]]
name = "ecdsa"
version = "0.16.9"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ee27f32b5c5292967d2d4a9d7f1e0b0aed2c15daded5a60300e4abb9d8020bca"
dependencies = [
"der",
"digest",
"elliptic-curve",
"rfc6979",
"signature",
"spki",
]
[[package]]
name = "elliptic-curve"
version = "0.13.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b5e6043086bf7973472e0c7dff2142ea0b680d30e18d9cc40f267efbf222bd47"
dependencies = [
"base16ct",
"crypto-bigint",
"digest",
"ff",
"generic-array",
"group",
"hkdf",
"pem-rfc7468",
"pkcs8",
"rand_core",
"sec1",
"subtle",
"zeroize",
]
[[package]]
name = "ff"
version = "0.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ded41244b729663b1e574f1b4fb731469f69f79c17667b5d776b16cda0479449"
dependencies = [
"rand_core",
"subtle",
]
[[package]]
name = "generic-array"
version = "0.14.7"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
dependencies = [
"typenum",
"version_check",
"zeroize",
]
[[package]]
name = "getrandom"
version = "0.2.12"
@ -151,12 +347,50 @@ dependencies = [
"wasi",
]
[[package]]
name = "group"
version = "0.13.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f0f9ef7462f7c099f518d754361858f86d8a07af53ba9af0fe635bbccb151a63"
dependencies = [
"ff",
"rand_core",
"subtle",
]
[[package]]
name = "heck"
version = "0.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
[[package]]
name = "hkdf"
version = "0.12.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "7b5f8eb2ad728638ea2c7d47a21db23b7b58a72ed6a38256b8a1849f15fbbdf7"
dependencies = [
"hmac",
]
[[package]]
name = "hmac"
version = "0.12.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6c49c37c09c17a53d937dfbb742eb3a961d65a994e6bcdcf37e7399d0cc8ab5e"
dependencies = [
"digest",
]
[[package]]
name = "inout"
version = "0.1.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "a0c10553d664a4d0bcff9f4215d0aac67a639cc68ef660840afe309b807bc9f5"
dependencies = [
"generic-array",
]
[[package]]
name = "itoa"
version = "1.0.10"
@ -184,6 +418,55 @@ dependencies = [
"libc",
]
[[package]]
name = "opaque-debug"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
[[package]]
name = "p256"
version = "0.13.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c9863ad85fa8f4460f9c48cb909d38a0d689dba1f6f6988a5e3e0d31071bcd4b"
dependencies = [
"ecdsa",
"elliptic-curve",
"primeorder",
"sha2",
]
[[package]]
name = "pem-rfc7468"
version = "0.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "88b39c9bfcfc231068454382784bb460aae594343fb030d46e9f50a645418412"
dependencies = [
"base64ct",
]
[[package]]
name = "pkcs8"
version = "0.10.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
dependencies = [
"der",
"spki",
]
[[package]]
name = "polyval"
version = "0.6.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d52cff9d1d4dee5fe6d03729099f4a310a41179e0a10dbf542039873f2e826fb"
dependencies = [
"cfg-if",
"cpufeatures",
"opaque-debug",
"universal-hash",
]
[[package]]
name = "powerfmt"
version = "0.2.0"
@ -196,6 +479,15 @@ version = "0.2.17"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5b40af805b3121feab8a3c29f04d8ad262fa8e0561883e7653e024ae4479e6de"
[[package]]
name = "primeorder"
version = "0.13.6"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "353e1ca18966c16d9deb1c69278edbc5f194139612772bd9537af60ac231e1e6"
dependencies = [
"elliptic-curve",
]
[[package]]
name = "proc-macro2"
version = "1.0.76"
@ -244,6 +536,30 @@ dependencies = [
"getrandom",
]
[[package]]
name = "rfc6979"
version = "0.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f8dd2a808d456c4a54e300a23e9f5a67e122c3024119acbfd73e3bf664491cb2"
dependencies = [
"hmac",
"subtle",
]
[[package]]
name = "sec1"
version = "0.7.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d3e97a565f76233a6003f9f5c54be1d9c5bdfa3eccfb189469f11ec4901c47dc"
dependencies = [
"base16ct",
"der",
"generic-array",
"pkcs8",
"subtle",
"zeroize",
]
[[package]]
name = "serde"
version = "1.0.196"
@ -264,6 +580,27 @@ dependencies = [
"syn",
]
[[package]]
name = "sha2"
version = "0.10.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
dependencies = [
"cfg-if",
"cpufeatures",
"digest",
]
[[package]]
name = "signature"
version = "2.2.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
dependencies = [
"digest",
"rand_core",
]
[[package]]
name = "simplelog"
version = "0.12.1"
@ -275,12 +612,28 @@ dependencies = [
"time",
]
[[package]]
name = "spki"
version = "0.7.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
dependencies = [
"base64ct",
"der",
]
[[package]]
name = "strsim"
version = "0.10.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
[[package]]
name = "subtle"
version = "2.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "81cdd64d312baedb58e21336b31bc043b77e01cc99033ce76ef539f78e965ebc"
[[package]]
name = "syn"
version = "2.0.48"
@ -332,12 +685,28 @@ dependencies = [
"time-core",
]
[[package]]
name = "typenum"
version = "1.17.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "42ff0bf0c66b8238c6f3b578df37d0b7848e55df8577b3f74f92a69acceeb825"
[[package]]
name = "unicode-ident"
version = "1.0.12"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
[[package]]
name = "universal-hash"
version = "0.5.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fc1de2c688dc15305988b563c3854064043356019f97a4b46276fe734c4f07ea"
dependencies = [
"crypto-common",
"subtle",
]
[[package]]
name = "urlencoding"
version = "2.1.3"
@ -350,6 +719,12 @@ version = "0.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
[[package]]
name = "version_check"
version = "0.9.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
[[package]]
name = "wasi"
version = "0.11.0+wasi-snapshot-preview1"
@ -452,3 +827,9 @@ name = "windows_x86_64_msvc"
version = "0.52.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
[[package]]
name = "zeroize"
version = "1.7.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "525b4ec142c6b68a2d10f01f7bbf6755599ca3f81ea53b8431b7dd348f5fdb2d"

View File

@ -1,4 +1,4 @@
use std::fs::File;
use std::fs::{File, OpenOptions};
use std::net::SocketAddr;
use std::thread;
use std::time::Duration;
@ -17,13 +17,24 @@ struct Args {
/// Addresses to send requests
#[arg(short, long)]
address: String,
/// Base domain to operate on
#[arg(long)]
base_domain: String,
/// Sub-domain to handle key handling when requested
#[arg(long, default_value = "static")]
key_endpoint: String
}
fn main() {
CombinedLogger::init(
vec![
TermLogger::new(LevelFilter::Info, Config::default(), TerminalMode::Mixed, ColorChoice::Auto),
WriteLogger::new(LevelFilter::Info, Config::default(), File::create("dnstp.log").unwrap()),
WriteLogger::new(LevelFilter::Info, Config::default(), OpenOptions::new()
.read(true)
.write(true)
.append(true)
.create(true)
.open("dnstp.log").unwrap()),
]
).unwrap();
@ -42,12 +53,14 @@ fn main() {
socket.run_rx(processor.get_message_channel().expect("couldn't get message processing channel"));
let domain = vec![args.key_endpoint, args.base_domain].join(".");
let mut rng = rand::thread_rng();
loop {
info!("sending...");
let message = DNSRequest::from_hostname(address, rng.next_u32() as u16, "duck.com".to_string());
let message = DNSRequest::from_hostname(address, rng.next_u32() as u16, domain.clone());
let bytes = message.to_bytes();

View File

@ -5,8 +5,9 @@ use std::{thread};
use log::info;
use simplelog::*;
use std::fs::File;
use std::fs::{File, OpenOptions};
use std::net::SocketAddr;
use dnstplib::DomainConfig;
use dnstplib::net::DNSSocket;
use dnstplib::processor::RequestProcesor;
@ -18,13 +19,24 @@ struct Args {
/// Addresses to bind server to
#[arg(short, long)]
address: Vec<String>,
/// Base domain to operate on
#[arg(long)]
base_domain: String,
/// Sub-domain to handle key handling when requested
#[arg(long, default_value = "static")]
key_endpoint: String
}
fn main() {
CombinedLogger::init(
vec![
TermLogger::new(LevelFilter::Info, Config::default(), TerminalMode::Mixed, ColorChoice::Auto),
WriteLogger::new(LevelFilter::Info, Config::default(), File::create("dnstp.log").unwrap()),
WriteLogger::new(LevelFilter::Info, Config::default(), OpenOptions::new()
.read(true)
.write(true)
.append(true)
.create(true)
.open("dnstp.log").unwrap()),
]
).unwrap();
@ -47,7 +59,10 @@ fn main() {
socket.bind();
socket.run_tx();
let mut processor = RequestProcesor::new();
let mut processor = RequestProcesor::new(DomainConfig {
base_domain: args.base_domain,
key_endpoint: args.key_endpoint
});
processor.run(socket.get_tx_message_channel().expect("couldn't get message transmitting channel"));
socket.run_rx(processor.get_message_channel().expect("couldn't get message processing channel"));

View File

@ -8,3 +8,7 @@ edition = "2021"
[dependencies]
log = "0.4.20"
urlencoding = "2.1.3"
rand_core = { version = "0.6.4", features = ["getrandom"] }
p256 = { version = "0.13.2", features = ["ecdh"] }
aes-gcm-siv = "0.11.1"

6
dnstp/src/config.rs Normal file
View File

@ -0,0 +1,6 @@
#[derive(Clone)]
pub struct DomainConfig {
pub base_domain: String,
pub key_endpoint: String,
}

70
dnstp/src/crypto/mod.rs Normal file
View File

@ -0,0 +1,70 @@
#[cfg(test)]
mod tests;
use p256::{EncodedPoint, PublicKey, ecdh::EphemeralSecret, NistP256};
use p256::elliptic_curve::ecdh::SharedSecret;
use aes_gcm_siv::{aead::{Aead, KeyInit}, AeadCore, Aes256GcmSiv, Nonce};
use rand_core::OsRng;
pub fn get_random_asym_pair() -> (EphemeralSecret, EncodedPoint)
{
let secret = EphemeralSecret::random(&mut OsRng);
let public_point = EncodedPoint::from(secret.public_key());
(secret, public_point)
}
pub fn get_shared_asym_secret(secret: EphemeralSecret, opposing_public_key: EncodedPoint) -> Result<SharedSecret<NistP256>, ()> {
match PublicKey::from_sec1_bytes(opposing_public_key.as_ref()) {
Ok(other_public) => {
Ok(secret.diffie_hellman(&other_public))
}
Err(_) => {
Err(())
}
}
}
// pub fn generate_aes_nonce() -> Nonce
// {
// let mut nonce_buffer: [u8; 12] = [0; 12];
// &OsRng.fill_bytes(&mut nonce_buffer);
//
// Nonce::from(nonce_buffer)
// }
pub fn generate_aes_nonce() -> Nonce
{
Aes256GcmSiv::generate_nonce(OsRng)
}
pub fn asym_to_sym_key(secret: &SharedSecret<NistP256>) -> Aes256GcmSiv
{
Aes256GcmSiv::new(secret.raw_secret_bytes())
}
pub fn encrypt(key: &Aes256GcmSiv, nonce: &Nonce, bytes: &Vec<u8>) -> Result<Vec<u8>, ()>
{
match key.encrypt(nonce, bytes.as_ref()) {
Ok(r) => {
Ok(r)
}
Err(_) => {
Err(())
}
}
}
pub fn decrypt(key: &Aes256GcmSiv, nonce: &Nonce, bytes: &Vec<u8>) -> Result<Vec<u8>, ()>
{
match key.decrypt(nonce, bytes.as_ref()) {
Ok(r) => {
Ok(r)
}
Err(_) => {
Err(())
}
}
}

35
dnstp/src/crypto/tests.rs Normal file
View File

@ -0,0 +1,35 @@
use super::*;
#[test]
fn matching_shared_secrets() {
let (secret_alice, point_alice) = get_random_asym_pair();
let (secret_bob, point_bob) = get_random_asym_pair();
let shared_alice = get_shared_asym_secret(secret_alice, point_bob).unwrap();
let shared_bob = get_shared_asym_secret(secret_bob, point_alice).unwrap();
assert_eq!(shared_alice.raw_secret_bytes(), shared_bob.raw_secret_bytes());
}
#[test]
fn arbitrary_string_back_and_forth() {
let data = String::from("hello world!");
let nonce = generate_aes_nonce();
let (secret_alice, point_alice) = get_random_asym_pair();
let (secret_bob, point_bob) = get_random_asym_pair();
let shared_alice = get_shared_asym_secret(secret_alice, point_bob).unwrap();
let shared_bob = get_shared_asym_secret(secret_bob, point_alice).unwrap();
assert_eq!(shared_alice.raw_secret_bytes(), shared_bob.raw_secret_bytes());
let sym_key = asym_to_sym_key(&shared_alice);
let cipher_text = encrypt(&sym_key, &nonce, &data.clone().into_bytes()).unwrap();
let plain_text = decrypt(&sym_key, &nonce, &cipher_text).unwrap();
let result = String::from_utf8(plain_text).unwrap();
assert_eq!(data, result);
}

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@ -5,3 +5,7 @@ pub mod processor;
pub mod message;
pub mod net;
mod string;
pub mod config;
mod crypto;
pub use config::DomainConfig;

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@ -15,7 +15,7 @@ impl Debug for TXTRdata {
impl RData for TXTRdata {
fn to_bytes(&self) -> Vec<u8> {
self.rdata.into_bytes()
self.rdata.clone().into_bytes()
}
}

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@ -1,6 +1,7 @@
pub mod request;
pub mod response;
pub mod encryption;
pub use request::RequestProcesor;
pub use response::ResponseProcesor;

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@ -3,19 +3,22 @@ use std::sync::mpsc;
use std::sync::mpsc::{Receiver, Sender};
use std::thread;
use log::{error, info};
use crate::config::DomainConfig;
use crate::message::{QuestionParseError, DNSResponse};
use crate::net::{NetworkMessage, NetworkMessagePtr};
use crate::request_parser::{HeaderParseError, parse_request, RequestParseError};
pub struct RequestProcesor {
message_channel: Option<Sender<NetworkMessagePtr>>
message_channel: Option<Sender<NetworkMessagePtr>>,
domain_config: DomainConfig
}
impl RequestProcesor {
pub fn new() -> RequestProcesor {
RequestProcesor{
message_channel: None
pub fn new(domain_config: DomainConfig) -> RequestProcesor {
RequestProcesor {
message_channel: None,
domain_config
}
}
@ -24,6 +27,10 @@ impl RequestProcesor {
let (tx, rx): (Sender<NetworkMessagePtr>, Receiver<NetworkMessagePtr>) = mpsc::channel();
self.message_channel = Some(tx);
let mut base_domain_equality = self.domain_config.base_domain.clone();
base_domain_equality.insert_str(0, ".");
let base_domain_len = base_domain_equality.len() + 1;
thread::spawn(move || {
for m in rx
@ -34,14 +41,20 @@ impl RequestProcesor {
Ok(r) => {
info!("received dns message: {:?}", r);
let mut response = DNSResponse::a_from_request(&r, |q| Ipv4Addr::from([127, 0, 0, 1]));
if r.questions.iter().any(|q| q.qname.ends_with(&base_domain_equality))
{
sending_channel.send(Box::from(
NetworkMessage {
buffer: Box::from(response.to_bytes()),
peer: response.peer
}
));
}
else {
let mut response = DNSResponse::a_from_request(&r, |q| Ipv4Addr::from([127, 0, 0, 1]));
sending_channel.send(Box::from(
NetworkMessage {
buffer: Box::from(response.to_bytes()),
peer: response.peer
}
));
}
}
Err(e) => {
match e {