Bump smoltcp from 0.11.0 to 0.12.0 (#62)

* Bump smoltcp from 0.11.0 to 0.12.0

Bumps [smoltcp](https://github.com/smoltcp-rs/smoltcp) from 0.11.0 to 0.12.0.
- [Release notes](https://github.com/smoltcp-rs/smoltcp/releases)
- [Changelog](https://github.com/smoltcp-rs/smoltcp/blob/main/CHANGELOG.md)
- [Commits](https://github.com/smoltcp-rs/smoltcp/compare/v0.11.0...v0.12.0)

---
updated-dependencies:
- dependency-name: smoltcp
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* smoltcp moved to core::net types for IP addresses

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Nikolay Edigaryev <edigaryev@gmail.com>

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "cargo"
+    directory: "/"
+    schedule:
+      interval: "weekly"

lib/dhcp_snooper.rs

@@ -26,14 +26,14 @@ impl DhcpSnooper {
                 };
 
                 let dns_ips = match message.opts().get(OptionCode::DomainNameServer) {
-                    Some(DhcpOption::DomainNameServer(dns_ips)) => HashSet::from_iter(
-                        dns_ips.iter().map(|dns_ip| Ipv4Address(dns_ip.octets())),
-                    ),
+                    Some(DhcpOption::DomainNameServer(dns_ips)) => {
+                        HashSet::from_iter(dns_ips.iter().cloned())
+                    }
                     _ => HashSet::new(),
                 };
 
                 self.vm_lease = Some(Lease::new(
-                    message.yiaddr().into(),
+                    message.yiaddr(),
                     Duration::from_secs(*lease_time as u64),
                     dns_ips,
                 ))

lib/host.rs

@@ -92,7 +92,7 @@ impl Host {
             interface,
             new_packets_rx,
             callback_can_continue_tx,
-            gateway_ip: gateway_ip.into(),
+            gateway_ip,
             max_packet_size,
             finalized: false,
         })

lib/proxy/vm.rs

@@ -48,7 +48,7 @@ impl Proxy<'_> {
         let source_protocol_addr = Ipv4Addr::from(source_protocol_addr);
 
         if let Some(lease) = self.dhcp_snooper.lease() {
-            if lease.valid_ip_source(source_protocol_addr.into()) {
+            if lease.valid_ip_source(source_protocol_addr) {
                 return Some(());
             }
         } else if source_protocol_addr.is_unspecified() {
@@ -62,7 +62,7 @@ impl Proxy<'_> {
         // Have we learned the VM's IP from the DHCP snooping?
         if let Some(lease) = &self.dhcp_snooper.lease() {
             // If so, allow all global traffic
-            let dst_addr = Ipv4Addr::from(ipv4_pkt.dst_addr().0);
+            let dst_addr = ipv4_pkt.dst_addr();
             let dst_is_global = ip_network::IpNetwork::from(dst_addr).is_global();
 
             if lease.valid_ip_source(ipv4_pkt.src_addr()) && dst_is_global {