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Don't panic for missing virtio-net

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This commit is contained in:
Ruihan Li 2025-04-01 23:32:32 +08:00 committed by Jianfeng Jiang
parent 09a8ab8800
commit 0bbd56ecf3
1 changed files with 12 additions and 7 deletions
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19
kernel/src/net/iface/init.rs
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@ -13,9 +13,14 @@ pub static IFACES: Once<Vec<Arc<Iface>>> = Once::new();
pub fn init() {
IFACES.call_once(|| {
let iface_virtio = new_virtio();
let iface_loopback = new_loopback();
vec![iface_virtio, iface_loopback]
let mut ifaces = Vec::with_capacity(2);
if let Some(iface_virtio) = new_virtio() {
ifaces.push(iface_virtio);
}
ifaces.push(new_loopback());
ifaces
});
for (name, _) in aster_network::all_devices() {
@ -31,7 +36,7 @@ pub fn init() {
poll_ifaces();
}
fn new_virtio() -> Arc<Iface> {
fn new_virtio() -> Option<Arc<Iface>> {
use aster_bigtcp::{
iface::EtherIface,
wire::{EthernetAddress, Ipv4Address, Ipv4Cidr},
@ -43,7 +48,7 @@ fn new_virtio() -> Arc<Iface> {
const VIRTIO_ADDRESS_PREFIX_LEN: u8 = 24; // mask: 255.255.255.0
const VIRTIO_GATEWAY: Ipv4Address = Ipv4Address::new(10, 0, 2, 2);
let virtio_net = aster_network::get_device(DEVICE_NAME).unwrap();
let virtio_net = aster_network::get_device(DEVICE_NAME)?;
let ether_addr = virtio_net.lock().mac_addr().0;
@ -61,14 +66,14 @@ fn new_virtio() -> Arc<Iface> {
}
}
EtherIface::new(
Some(EtherIface::new(
Wrapper(virtio_net),
EthernetAddress(ether_addr),
Ipv4Cidr::new(VIRTIO_ADDRESS, VIRTIO_ADDRESS_PREFIX_LEN),
VIRTIO_GATEWAY,
"virtio".to_owned(),
PollScheduler::new(),
)
))
}
fn new_loopback() -> Arc<Iface> {