From 4eecb3cfa982abfd4fe97108f14d15236addb9b2 Mon Sep 17 00:00:00 2001
From: Dario Nieuwenhuis <dirbaio@dirbaio.net>
Date: Tue, 13 Apr 2021 17:14:23 +0200
Subject: [PATCH] add is_link_up, is_config_up

---
 embassy-net/src/lib.rs   |  2 +-
 embassy-net/src/stack.rs | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/embassy-net/src/lib.rs b/embassy-net/src/lib.rs
index efa5f3cb..13f14b83 100644
--- a/embassy-net/src/lib.rs
+++ b/embassy-net/src/lib.rs
@@ -18,7 +18,7 @@ pub use config::{Config, Configurator, Event as ConfigEvent, StaticConfigurator}
 
 pub use device::{Device, LinkState};
 pub use packet_pool::{Packet, PacketBox, PacketBoxExt, PacketBuf};
-pub use stack::{init, is_init, run};
+pub use stack::{init, is_config_up, is_init, is_link_up, run};
 
 #[cfg(feature = "tcp")]
 mod tcp_socket;
diff --git a/embassy-net/src/stack.rs b/embassy-net/src/stack.rs
index 83cd7170..e436beb1 100644
--- a/embassy-net/src/stack.rs
+++ b/embassy-net/src/stack.rs
@@ -46,6 +46,7 @@ pub(crate) struct Stack {
     iface: Interface,
     pub sockets: SocketSet,
     link_up: bool,
+    config_up: bool,
     next_local_port: u16,
     configurator: &'static mut dyn Configurator,
     waker: WakerRegistration,
@@ -102,6 +103,8 @@ impl Stack {
                 for (i, s) in config.dns_servers.iter().enumerate() {
                     debug!("   DNS server {}:    {}", i, s);
                 }
+
+                self.config_up = true;
             }
             Event::Deconfigured => {
                 debug!("Lost IP configuration");
@@ -110,6 +113,7 @@ impl Stack {
                 if medium == Medium::Ethernet {
                     self.iface.routes_mut().remove_default_ipv4_route();
                 }
+                self.config_up = false;
             }
         }
     }
@@ -209,6 +213,7 @@ pub fn init(device: &'static mut dyn Device, configurator: &'static mut dyn Conf
         iface,
         sockets,
         link_up: false,
+        config_up: false,
         configurator,
         next_local_port: local_port,
         waker: WakerRegistration::new(),
@@ -221,6 +226,14 @@ pub fn is_init() -> bool {
     STACK.borrow().borrow().is_some()
 }
 
+pub fn is_link_up() -> bool {
+    STACK.borrow().borrow().as_ref().unwrap().link_up
+}
+
+pub fn is_config_up() -> bool {
+    STACK.borrow().borrow().as_ref().unwrap().config_up
+}
+
 pub async fn run() {
     futures::future::poll_fn(|cx| {
         Stack::with(|stack| stack.poll(cx));