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network: cleanup NAT code and start on IPv6 support

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This commit is contained in:
Alex Zenla
2024-02-11 06:43:09 +00:00
parent efe425b346
commit 102cab32c3
10 changed files with 197 additions and 167 deletions
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16
network/src/backend.rs
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@ -17,7 +17,8 @@ use tokio::sync::mpsc::{channel, Receiver};
#[derive(Clone)]
pub struct NetworkBackend {
network: String,
ipv4: String,
ipv6: String,
interface: String,
}
@ -71,9 +72,10 @@ impl NetworkStack<'_> {
}
impl NetworkBackend {
pub fn new(network: &str, interface: &str) -> Result<Self> {
pub fn new(ipv4: &str, ipv6: &str, interface: &str) -> Result<Self> {
Ok(Self {
network: network.to_string(),
ipv4: ipv4.to_string(),
ipv6: ipv6.to_string(),
interface: interface.to_string(),
})
}
@ -110,9 +112,11 @@ impl NetworkBackend {
fn create_network_stack(&self) -> Result<NetworkStack> {
let proxy = Box::new(ProxyNatHandlerFactory::new());
let address = IpCidr::from_str(&self.network)
.map_err(|_| anyhow!("failed to parse cidr: {}", self.network))?;
let addresses: Vec<IpCidr> = vec![address];
let ipv4 = IpCidr::from_str(&self.ipv4)
.map_err(|_| anyhow!("failed to parse ipv4 cidr: {}", self.ipv4))?;
let ipv6 = IpCidr::from_str(&self.ipv4)
.map_err(|_| anyhow!("failed to parse ipv6 cidr: {}", self.ipv6))?;
let addresses: Vec<IpCidr> = vec![ipv4, ipv6];
let mut kdev =
AsyncRawSocket::bound_to_interface(&self.interface, RawSocketProtocol::Ethernet)?;
let mtu = kdev.mtu_of_interface(&self.interface)?;