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net: don't depend directly on smoltcp outside embassy-net

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This commit is contained in:
Dario Nieuwenhuis
2021-11-24 17:48:48 +01:00
parent 8fea6c94f6
commit e4de15e4de
4 changed files with 3 additions and 32 deletions
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6
examples/std/src/tuntap.rs
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@ -1,7 +1,5 @@
use async_io::Async;
use libc;
use log::*;
use smoltcp::wire::EthernetFrame;
use std::io;
use std::io::{Read, Write};
use std::os::unix::io::{AsRawFd, RawFd};
@ -14,6 +12,8 @@ pub const _IFF_TUN: libc::c_int = 0x0001;
pub const IFF_TAP: libc::c_int = 0x0002;
pub const IFF_NO_PI: libc::c_int = 0x1000;
const ETHERNET_HEADER_LEN: usize = 14;
#[repr(C)]
#[derive(Debug)]
struct ifreq {
@ -85,7 +85,7 @@ impl TunTap {
// SIOCGIFMTU returns the IP MTU (typically 1500 bytes.)
// smoltcp counts the entire Ethernet packet in the MTU, so add the Ethernet header size to it.
let mtu = ip_mtu + EthernetFrame::<&[u8]>::header_len();
let mtu = ip_mtu + ETHERNET_HEADER_LEN;
Ok(TunTap { fd, mtu })
}