net: Support dual stack IP

19 files changed, 94 insertions, 45 deletions

diff --git a/embassy-net/src/lib.rs b/embassy-net/src/lib.rs
index 4cc191d44..cf7ebad3f 100644
--- a/embassy-net/src/lib.rs
+++ b/embassy-net/src/lib.rs
@@ -127,16 +127,61 @@ impl Default for DhcpConfig {
 }
 
 /// Network stack configuration.
-pub enum Config {
-    /// Use a static IPv4 address configuration.
+pub struct Config {
     #[cfg(feature = "proto-ipv4")]
-    StaticV4(StaticConfigV4),
-    /// Use a static IPv6 address configuration.
+    pub ipv4: ConfigV4,
     #[cfg(feature = "proto-ipv6")]
-    StaticV6(StaticConfigV6),
+    pub ipv6: ConfigV6,
+}
+
+impl Config {
+    #[cfg(feature = "proto-ipv4")]
+    pub fn ipv4_static(config: StaticConfigV4) -> Self {
+        Self {
+            ipv4: ConfigV4::Static(config),
+            #[cfg(feature = "proto-ipv6")]
+            ipv6: ConfigV6::None,
+        }
+    }
+
+    #[cfg(feature = "proto-ipv6")]
+    pub fn ipv6_static(config: StaticConfigV6) -> Self {
+        Self {
+            #[cfg(feature = "proto-ipv4")]
+            ipv4: ConfigV4::None,
+            ipv6: ConfigV6::Static(config),
+        }
+    }
+
+    #[cfg(feature = "dhcpv4")]
+    pub fn dhcpv4(config: DhcpConfig) -> Self {
+        Self {
+            ipv4: ConfigV4::Dhcp(config),
+            #[cfg(feature = "proto-ipv6")]
+            ipv6: ConfigV6::None,
+        }
+    }
+}
+
+/// Network stack IPv4 configuration.
+#[cfg(feature = "proto-ipv4")]
+pub enum ConfigV4 {
+    /// Use a static IPv4 address configuration.
+    Static(StaticConfigV4),
     /// Use DHCP to obtain an IP address configuration.
     #[cfg(feature = "dhcpv4")]
     Dhcp(DhcpConfig),
+    /// Do not configure IPv6.
+    None,
+}
+
+/// Network stack IPv6 configuration.
+#[cfg(feature = "proto-ipv6")]
+pub enum ConfigV6 {
+    /// Use a static IPv6 address configuration.
+    Static(StaticConfigV6),
+    /// Do not configure IPv6.
+    None,
 }
 
 /// A network stack.
@@ -224,22 +269,26 @@ impl<D: Driver + 'static> Stack<D> {
             dns_waker: WakerRegistration::new(),
         };
 
-        match config {
-            #[cfg(feature = "proto-ipv4")]
-            Config::StaticV4(config) => {
+        #[cfg(feature = "proto-ipv4")]
+        match config.ipv4 {
+            ConfigV4::Static(config) => {
                 inner.apply_config_v4(&mut socket, config);
             }
-            #[cfg(feature = "proto-ipv6")]
-            Config::StaticV6(config) => {
-                inner.apply_config_v6(&mut socket, config);
-            }
             #[cfg(feature = "dhcpv4")]
-            Config::Dhcp(config) => {
+            ConfigV4::Dhcp(config) => {
                 let mut dhcp_socket = smoltcp::socket::dhcpv4::Socket::new();
                 inner.apply_dhcp_config(&mut dhcp_socket, config);
                 let handle = socket.sockets.add(dhcp_socket);
                 inner.dhcp_socket = Some(handle);
             }
+            ConfigV4::None => {}
+        }
+        #[cfg(feature = "proto-ipv6")]
+        match config.ipv6 {
+            ConfigV6::Static(config) => {
+                inner.apply_config_v6(&mut socket, config);
+            }
+            ConfigV6::None => {}
         }
 
         Self {
diff --git a/examples/nrf52840/src/bin/usb_ethernet.rs b/examples/nrf52840/src/bin/usb_ethernet.rs
index b4316f5a4..f527c0d7f 100644
--- a/examples/nrf52840/src/bin/usb_ethernet.rs
+++ b/examples/nrf52840/src/bin/usb_ethernet.rs
@@ -97,12 +97,12 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    // let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
-    //});
+    // });
 
     // Generate random seed
     let mut rng = Rng::new(p.RNG, Irqs);
diff --git a/examples/rp/src/bin/ethernet_w5500_multisocket.rs b/examples/rp/src/bin/ethernet_w5500_multisocket.rs
index 066ecf2bc..82568254a 100644
--- a/examples/rp/src/bin/ethernet_w5500_multisocket.rs
+++ b/examples/rp/src/bin/ethernet_w5500_multisocket.rs
@@ -64,7 +64,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<3>::new()),
         seed
     ));
diff --git a/examples/rp/src/bin/ethernet_w5500_tcp_client.rs b/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
index 3e0f5d136..d562defad 100644
--- a/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
+++ b/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
@@ -67,7 +67,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<2>::new()),
         seed
     ));
diff --git a/examples/rp/src/bin/ethernet_w5500_tcp_server.rs b/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
index db178d49d..7f521cdb4 100644
--- a/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
+++ b/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
@@ -65,7 +65,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<2>::new()),
         seed
     ));
diff --git a/examples/rp/src/bin/ethernet_w5500_udp.rs b/examples/rp/src/bin/ethernet_w5500_udp.rs
index 21943c3c6..ada86ae55 100644
--- a/examples/rp/src/bin/ethernet_w5500_udp.rs
+++ b/examples/rp/src/bin/ethernet_w5500_udp.rs
@@ -62,7 +62,7 @@ async fn main(spawner: Spawner) {
     // Init network stack
     let stack = &*make_static!(Stack::new(
         device,
-        embassy_net::Config::Dhcp(Default::default()),
+        embassy_net::Config::dhcpv4(Default::default()),
         make_static!(StackResources::<2>::new()),
         seed
     ));
diff --git a/examples/rp/src/bin/usb_ethernet.rs b/examples/rp/src/bin/usb_ethernet.rs
index d33d9c72e..91d1ec8e7 100644
--- a/examples/rp/src/bin/usb_ethernet.rs
+++ b/examples/rp/src/bin/usb_ethernet.rs
@@ -86,8 +86,8 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
diff --git a/examples/rp/src/bin/wifi_ap_tcp_server.rs b/examples/rp/src/bin/wifi_ap_tcp_server.rs
index 970cf4b32..e8197390c 100644
--- a/examples/rp/src/bin/wifi_ap_tcp_server.rs
+++ b/examples/rp/src/bin/wifi_ap_tcp_server.rs
@@ -62,7 +62,7 @@ async fn main(spawner: Spawner) {
         .await;
 
     // Use a link-local address for communication without DHCP server
-    let config = Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = Config::ipv4_static(embassy_net::StaticConfigV4 {
         address: embassy_net::Ipv4Cidr::new(embassy_net::Ipv4Address::new(169, 254, 1, 1), 16),
         dns_servers: heapless::Vec::new(),
         gateway: None,
diff --git a/examples/rp/src/bin/wifi_tcp_server.rs b/examples/rp/src/bin/wifi_tcp_server.rs
index 9f95f8b03..026e056fa 100644
--- a/examples/rp/src/bin/wifi_tcp_server.rs
+++ b/examples/rp/src/bin/wifi_tcp_server.rs
@@ -61,8 +61,8 @@ async fn main(spawner: Spawner) {
         .set_power_management(cyw43::PowerManagementMode::PowerSave)
         .await;
 
-    let config = Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::Config {
+    let config = Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
diff --git a/examples/std/src/bin/net.rs b/examples/std/src/bin/net.rs
index 14cf3f25b..3aadb029d 100644
--- a/examples/std/src/bin/net.rs
+++ b/examples/std/src/bin/net.rs
@@ -42,13 +42,13 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::StaticV4(embassy_net::StaticConfigV4 {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
             dns_servers: Vec::new(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/std/src/bin/net_dns.rs b/examples/std/src/bin/net_dns.rs
index 0a479a744..65b5a2cd9 100644
--- a/examples/std/src/bin/net_dns.rs
+++ b/examples/std/src/bin/net_dns.rs
@@ -40,14 +40,14 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::StaticV4(embassy_net::StaticConfigV4 {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 1), 24),
             dns_servers: Vec::from_slice(&[Ipv4Address::new(8, 8, 4, 4).into(), Ipv4Address::new(8, 8, 8, 8).into()])
                 .unwrap(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 100)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/std/src/bin/net_udp.rs b/examples/std/src/bin/net_udp.rs
index 0ede5d998..3fc46156c 100644
--- a/examples/std/src/bin/net_udp.rs
+++ b/examples/std/src/bin/net_udp.rs
@@ -38,13 +38,13 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::StaticV4(embassy_net::StaticConfigV4 {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
             dns_servers: Vec::new(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/std/src/bin/tcp_accept.rs b/examples/std/src/bin/tcp_accept.rs
index 4379d0439..df09986ac 100644
--- a/examples/std/src/bin/tcp_accept.rs
+++ b/examples/std/src/bin/tcp_accept.rs
@@ -53,13 +53,13 @@ async fn main_task(spawner: Spawner) {
 
     // Choose between dhcp or static ip
     let config = if opts.static_ip {
-        Config::StaticV4(embassy_net::StaticConfigV4 {
+        Config::ipv4_static(embassy_net::StaticConfigV4 {
             address: Ipv4Cidr::new(Ipv4Address::new(192, 168, 69, 2), 24),
             dns_servers: Vec::new(),
             gateway: Some(Ipv4Address::new(192, 168, 69, 1)),
         })
     } else {
-        Config::Dhcp(Default::default())
+        Config::dhcpv4(Default::default())
     };
 
     // Generate random seed
diff --git a/examples/stm32f4/src/bin/usb_ethernet.rs b/examples/stm32f4/src/bin/usb_ethernet.rs
index 0856b4842..953d99a45 100644
--- a/examples/stm32f4/src/bin/usb_ethernet.rs
+++ b/examples/stm32f4/src/bin/usb_ethernet.rs
@@ -94,8 +94,8 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
diff --git a/examples/stm32f7/src/bin/eth.rs b/examples/stm32f7/src/bin/eth.rs
index ebdf0d8a0..fde6a7576 100644
--- a/examples/stm32f7/src/bin/eth.rs
+++ b/examples/stm32f7/src/bin/eth.rs
@@ -62,8 +62,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
diff --git a/examples/stm32h5/src/bin/eth.rs b/examples/stm32h5/src/bin/eth.rs
index 811f74c88..78c8282a6 100644
--- a/examples/stm32h5/src/bin/eth.rs
+++ b/examples/stm32h5/src/bin/eth.rs
@@ -81,8 +81,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
diff --git a/examples/stm32h7/src/bin/eth.rs b/examples/stm32h7/src/bin/eth.rs
index 5360a213a..12d37f7a4 100644
--- a/examples/stm32h7/src/bin/eth.rs
+++ b/examples/stm32h7/src/bin/eth.rs
@@ -63,8 +63,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
diff --git a/examples/stm32h7/src/bin/eth_client.rs b/examples/stm32h7/src/bin/eth_client.rs
index 42781cfdc..6078fc3fe 100644
--- a/examples/stm32h7/src/bin/eth_client.rs
+++ b/examples/stm32h7/src/bin/eth_client.rs
@@ -64,8 +64,8 @@ async fn main(spawner: Spawner) -> ! {
         0,
     );
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),
diff --git a/examples/stm32l5/src/bin/usb_ethernet.rs b/examples/stm32l5/src/bin/usb_ethernet.rs
index d96d2f350..32eba4277 100644
--- a/examples/stm32l5/src/bin/usb_ethernet.rs
+++ b/examples/stm32l5/src/bin/usb_ethernet.rs
@@ -91,8 +91,8 @@ async fn main(spawner: Spawner) {
     let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
     unwrap!(spawner.spawn(usb_ncm_task(runner)));
 
-    let config = embassy_net::Config::Dhcp(Default::default());
-    //let config = embassy_net::Config::StaticV4(embassy_net::StaticConfigV4 {
+    let config = embassy_net::Config::dhcpv4(Default::default());
+    //let config = embassy_net::Config::ipv4_static(embassy_net::StaticConfigV4 {
     //    address: Ipv4Cidr::new(Ipv4Address::new(10, 42, 0, 61), 24),
     //    dns_servers: Vec::new(),
     //    gateway: Some(Ipv4Address::new(10, 42, 0, 1)),