From 64cba950e55dd5cdd7d6ef13c2dbb03825bc6d01 Mon Sep 17 00:00:00 2001
From: Dario Nieuwenhuis <dirbaio@dirbaio.net>
Date: Mon, 26 Jun 2023 01:59:25 +0200
Subject: [PATCH] Update smoltcp.

---
 embassy-net/Cargo.toml    |  4 ++--
 embassy-net/src/device.rs |  3 ++-
 embassy-net/src/lib.rs    | 18 +++++++++++++-----
 embassy-net/src/udp.rs    |  2 +-
 4 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/embassy-net/Cargo.toml b/embassy-net/Cargo.toml
index 4ac57257..63947c26 100644
--- a/embassy-net/Cargo.toml
+++ b/embassy-net/Cargo.toml
@@ -38,10 +38,10 @@ igmp = ["smoltcp/proto-igmp"]
 defmt = { version = "0.3", optional = true }
 log = { version = "0.4.14", optional = true }
 
-smoltcp = { version = "0.9.0", default-features = false, features = [
+smoltcp = { git = "https://github.com/smoltcp-rs/smoltcp", rev = "803840b5ccac01cc0f108993958f637835f0adbe", default-features = false, features = [
   "socket",
   "async",
-]}
+] }
 
 embassy-net-driver = { version = "0.1.0", path = "../embassy-net-driver" }
 embassy-hal-common = { version = "0.1.0", path = "../embassy-hal-common" }
diff --git a/embassy-net/src/device.rs b/embassy-net/src/device.rs
index 583cdc87..4513c86d 100644
--- a/embassy-net/src/device.rs
+++ b/embassy-net/src/device.rs
@@ -51,8 +51,9 @@ where
             Medium::Ethernet => phy::Medium::Ethernet,
             #[cfg(feature = "medium-ip")]
             Medium::Ip => phy::Medium::Ip,
+            #[allow(unreachable_patterns)]
             _ => panic!(
-                "Unsupported medium {:?}. MAke sure to enable it in embassy-net's Cargo features.",
+                "Unsupported medium {:?}. Make sure to enable it in embassy-net's Cargo features.",
                 caps.medium
             ),
         };
diff --git a/embassy-net/src/lib.rs b/embassy-net/src/lib.rs
index 7e8f765f..3e83da7a 100644
--- a/embassy-net/src/lib.rs
+++ b/embassy-net/src/lib.rs
@@ -235,12 +235,19 @@ impl<D: Driver + 'static> Stack<D> {
         #[cfg(feature = "medium-ethernet")]
         let medium = device.capabilities().medium;
 
-        let mut iface_cfg = smoltcp::iface::Config::new();
+        let hardware_addr = match medium {
+            #[cfg(feature = "medium-ethernet")]
+            Medium::Ethernet => HardwareAddress::Ethernet(EthernetAddress(device.ethernet_address())),
+            #[cfg(feature = "medium-ip")]
+            Medium::Ip => HardwareAddress::Ip,
+            #[allow(unreachable_patterns)]
+            _ => panic!(
+                "Unsupported medium {:?}. Make sure to enable it in embassy-net's Cargo features.",
+                medium
+            ),
+        };
+        let mut iface_cfg = smoltcp::iface::Config::new(hardware_addr);
         iface_cfg.random_seed = random_seed;
-        #[cfg(feature = "medium-ethernet")]
-        if medium == Medium::Ethernet {
-            iface_cfg.hardware_addr = Some(HardwareAddress::Ethernet(EthernetAddress(device.ethernet_address())));
-        }
 
         let iface = Interface::new(
             iface_cfg,
@@ -248,6 +255,7 @@ impl<D: Driver + 'static> Stack<D> {
                 inner: &mut device,
                 cx: None,
             },
+            instant_to_smoltcp(Instant::now()),
         );
 
         let sockets = SocketSet::new(&mut resources.sockets[..]);
diff --git a/embassy-net/src/udp.rs b/embassy-net/src/udp.rs
index c9843cfe..36f8d06f 100644
--- a/embassy-net/src/udp.rs
+++ b/embassy-net/src/udp.rs
@@ -104,7 +104,7 @@ impl<'a> UdpSocket<'a> {
     pub async fn recv_from(&self, buf: &mut [u8]) -> Result<(usize, IpEndpoint), Error> {
         poll_fn(move |cx| {
             self.with_mut(|s, _| match s.recv_slice(buf) {
-                Ok(x) => Poll::Ready(Ok(x)),
+                Ok((n, meta)) => Poll::Ready(Ok((n, meta.endpoint))),
                 // No data ready
                 Err(udp::RecvError::Exhausted) => {
                     s.register_recv_waker(cx.waker());