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network: configure mtu and segmentation offloading properly

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This commit is contained in:
Alex Zenla
2024-03-04 12:19:03 +00:00
parent 9350a7520d
commit 17889d1c64
8 changed files with 131 additions and 7 deletions
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7
network/src/backend.rs
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@ -4,7 +4,7 @@ use crate::nat::Nat;
use crate::proxynat::ProxyNatHandlerFactory;
use crate::raw_socket::{AsyncRawSocketChannel, RawSocketHandle, RawSocketProtocol};
use crate::vbridge::{BridgeJoinHandle, VirtualBridge};
use crate::FORCE_MTU;
use crate::EXTRA_MTU;
use anyhow::{anyhow, Result};
use bytes::BytesMut;
use futures::TryStreamExt;
@ -120,8 +120,9 @@ impl NetworkBackend {
self.metadata.gateway.ipv4.into(),
self.metadata.gateway.ipv6.into(),
];
let kdev = RawSocketHandle::bound_to_interface(&interface, RawSocketProtocol::Ethernet)?;
let mtu = FORCE_MTU;
let mut kdev =
RawSocketHandle::bound_to_interface(&interface, RawSocketProtocol::Ethernet)?;
let mtu = kdev.mtu_of_interface(&interface)? + EXTRA_MTU;
let (tx_sender, tx_receiver) = channel::<BytesMut>(TX_CHANNEL_BUFFER_LEN);
let mut udev = ChannelDevice::new(mtu, Medium::Ethernet, tx_sender.clone());
let mac = self.metadata.gateway.mac;