Add `x_` prefix to all IP methods that collide with unstable core's.

src/iface/interface/ipv4.rs

@@ -70,7 +70,7 @@ impl InterfaceInner {
 
     /// Checks if an ipv4 address is unicast, taking into account subnet broadcast addresses
     fn is_unicast_v4(&self, address: Ipv4Address) -> bool {
-        address.is_unicast() && !self.is_broadcast_v4(address)
+        address.x_is_unicast() && !self.is_broadcast_v4(address)
     }
 
     /// Get the first IPv4 address of the interface.
@@ -182,7 +182,7 @@ impl InterfaceInner {
             // Ignore IP packets not directed at us, or broadcast, or any of the multicast groups.
             // If AnyIP is enabled, also check if the packet is routed locally.
             if !self.any_ip
-                || !ipv4_repr.dst_addr.is_unicast()
+                || !ipv4_repr.dst_addr.x_is_unicast()
                 || self
                     .routes
                     .lookup(&IpAddress::Ipv4(ipv4_repr.dst_addr), self.now)
@@ -260,7 +260,7 @@ impl InterfaceInner {
                 }
 
                 // Discard packets with non-unicast source addresses.
-                if !source_protocol_addr.is_unicast() || !source_hardware_addr.is_unicast() {
+                if !source_protocol_addr.x_is_unicast() || !source_hardware_addr.is_unicast() {
                     net_debug!("arp: non-unicast source address");
                     return None;
                 }

src/iface/interface/ipv6.rs

@@ -37,9 +37,9 @@ impl InterfaceInner {
             }
 
             if dst_addr.is_multicast()
-                && matches!(dst_addr.multicast_scope(), Ipv6MulticastScope::LinkLocal)
+                && matches!(dst_addr.x_multicast_scope(), Ipv6MulticastScope::LinkLocal)
                 && src_addr.is_multicast()
-                && !matches!(src_addr.multicast_scope(), Ipv6MulticastScope::LinkLocal)
+                && !matches!(src_addr.x_multicast_scope(), Ipv6MulticastScope::LinkLocal)
             {
                 return false;
             }
@@ -111,15 +111,16 @@ impl InterfaceInner {
             }
 
             // Rule 2: prefer appropriate scope.
-            if (candidate.address().multicast_scope() as u8)
-                < (addr.address().multicast_scope() as u8)
+            if (candidate.address().x_multicast_scope() as u8)
+                < (addr.address().x_multicast_scope() as u8)
             {
-                if (candidate.address().multicast_scope() as u8)
-                    < (dst_addr.multicast_scope() as u8)
+                if (candidate.address().x_multicast_scope() as u8)
+                    < (dst_addr.x_multicast_scope() as u8)
                 {
                     candidate = addr;
                 }
-            } else if (addr.address().multicast_scope() as u8) > (dst_addr.multicast_scope() as u8)
+            } else if (addr.address().x_multicast_scope() as u8)
+                > (dst_addr.x_multicast_scope() as u8)
             {
                 candidate = addr;
             }
@@ -192,7 +193,7 @@ impl InterfaceInner {
     ) -> Option<Packet<'frame>> {
         let ipv6_repr = check!(Ipv6Repr::parse(ipv6_packet));
 
-        if !ipv6_repr.src_addr.is_unicast() {
+        if !ipv6_repr.src_addr.x_is_unicast() {
             // Discard packets with non-unicast source addresses.
             net_debug!("non-unicast source address");
             return None;
@@ -213,7 +214,7 @@ impl InterfaceInner {
         {
             // If AnyIP is enabled, also check if the packet is routed locally.
             if !self.any_ip
-                || !ipv6_repr.dst_addr.is_unicast()
+                || !ipv6_repr.dst_addr.x_is_unicast()
                 || self
                     .routes
                     .lookup(&IpAddress::Ipv6(ipv6_repr.dst_addr), self.now)
@@ -230,7 +231,7 @@ impl InterfaceInner {
         let handled_by_raw_socket = false;
 
         #[cfg(any(feature = "medium-ethernet", feature = "medium-ieee802154"))]
-        if ipv6_repr.dst_addr.is_unicast() {
+        if ipv6_repr.dst_addr.x_is_unicast() {
             self.neighbor_cache.reset_expiry_if_existing(
                 IpAddress::Ipv6(ipv6_repr.src_addr),
                 source_hardware_addr,
@@ -436,7 +437,7 @@ impl InterfaceInner {
                 let ip_addr = ip_repr.src_addr.into();
                 if let Some(lladdr) = lladdr {
                     let lladdr = check!(lladdr.parse(self.caps.medium));
-                    if !lladdr.is_unicast() || !target_addr.is_unicast() {
+                    if !lladdr.is_unicast() || !target_addr.x_is_unicast() {
                         return None;
                     }
                     if flags.contains(NdiscNeighborFlags::OVERRIDE)
@@ -454,7 +455,7 @@ impl InterfaceInner {
             } => {
                 if let Some(lladdr) = lladdr {
                     let lladdr = check!(lladdr.parse(self.caps.medium));
-                    if !lladdr.is_unicast() || !target_addr.is_unicast() {
+                    if !lladdr.is_unicast() || !target_addr.x_is_unicast() {
                         return None;
                     }
                     self.neighbor_cache
@@ -492,7 +493,7 @@ impl InterfaceInner {
         let src_addr = ipv6_repr.dst_addr;
         let dst_addr = ipv6_repr.src_addr;
 
-        let src_addr = if src_addr.is_unicast() {
+        let src_addr = if src_addr.x_is_unicast() {
             src_addr
         } else {
             self.get_source_address_ipv6(&dst_addr)

src/lib.rs

@@ -87,7 +87,6 @@ compile_error!("at least one socket needs to be enabled"); */
 #![allow(clippy::option_map_unit_fn)]
 #![allow(clippy::unit_arg)]
 #![allow(clippy::new_without_default)]
-#![allow(unstable_name_collisions)]
 
 #[cfg(feature = "alloc")]
 extern crate alloc;

src/socket/dhcpv4.rs

@@ -366,7 +366,7 @@ impl<'a> Socket<'a> {
 
         match (&mut self.state, dhcp_repr.message_type) {
             (ClientState::Discovering(_state), DhcpMessageType::Offer) => {
-                if !dhcp_repr.your_ip.is_unicast() {
+                if !dhcp_repr.your_ip.x_is_unicast() {
                     net_debug!("DHCP ignoring OFFER because your_ip is not unicast");
                     return;
                 }
@@ -462,7 +462,7 @@ impl<'a> Socket<'a> {
             }
         };
 
-        if !dhcp_repr.your_ip.is_unicast() {
+        if !dhcp_repr.your_ip.x_is_unicast() {
             net_debug!("DHCP ignoring ACK because your_ip is not unicast");
             return None;
         }
@@ -483,7 +483,7 @@ impl<'a> Socket<'a> {
             .dns_servers
             .iter()
             .flatten()
-            .filter(|s| s.is_unicast())
+            .filter(|s| s.x_is_unicast())
             .for_each(|a| {
                 // This will never produce an error, as both the arrays and `dns_servers`
                 // have length DHCP_MAX_DNS_SERVER_COUNT

src/wire/ip.rs

@@ -131,9 +131,9 @@ impl Address {
     pub fn is_unicast(&self) -> bool {
         match self {
             #[cfg(feature = "proto-ipv4")]
-            Address::Ipv4(addr) => addr.is_unicast(),
+            Address::Ipv4(addr) => addr.x_is_unicast(),
             #[cfg(feature = "proto-ipv6")]
-            Address::Ipv6(addr) => addr.is_unicast(),
+            Address::Ipv6(addr) => addr.x_is_unicast(),
         }
     }
 

src/wire/ipv4.rs

@@ -51,7 +51,9 @@ pub(crate) trait AddressExt {
     fn from_bytes(data: &[u8]) -> Self;
 
     /// Query whether the address is an unicast address.
-    fn is_unicast(&self) -> bool;
+    ///
+    /// `x_` prefix is to avoid a collision with the still-unstable method in `core::ip`.
+    fn x_is_unicast(&self) -> bool;
 
     /// If `self` is a CIDR-compatible subnet mask, return `Some(prefix_len)`,
     /// where `prefix_len` is the number of leading zeroes. Return `None` otherwise.
@@ -66,7 +68,7 @@ impl AddressExt for Address {
     }
 
     /// Query whether the address is an unicast address.
-    fn is_unicast(&self) -> bool {
+    fn x_is_unicast(&self) -> bool {
         !(self.is_broadcast() || self.is_multicast() || self.is_unspecified())
     }
 

src/wire/ipv6.rs

@@ -86,7 +86,9 @@ pub(crate) trait AddressExt {
     /// Query whether the IPv6 address is an [unicast address].
     ///
     /// [unicast address]: https://tools.ietf.org/html/rfc4291#section-2.5
-    fn is_unicast(&self) -> bool;
+    ///
+    /// `x_` prefix is to avoid a collision with the still-unstable method in `core::ip`.
+    fn x_is_unicast(&self) -> bool;
 
     /// Query whether the IPv6 address is a [global unicast address].
     ///
@@ -101,7 +103,9 @@ pub(crate) trait AddressExt {
     /// Query whether the IPv6 address is a [Unique Local Address] (ULA).
     ///
     /// [Unique Local Address]: https://tools.ietf.org/html/rfc4193
-    fn is_unique_local(&self) -> bool;
+    ///
+    /// `x_` prefix is to avoid a collision with the still-unstable method in `core::ip`.
+    fn x_is_unique_local(&self) -> bool;
 
     /// Helper function used to mask an address given a prefix.
     ///
@@ -117,7 +121,9 @@ pub(crate) trait AddressExt {
     fn solicited_node(&self) -> Address;
 
     /// Return the scope of the address.
-    fn multicast_scope(&self) -> MulticastScope;
+    ///
+    /// `x_` prefix is to avoid a collision with the still-unstable method in `core::ip`.
+    fn x_multicast_scope(&self) -> MulticastScope;
 
     /// If `self` is a CIDR-compatible subnet mask, return `Some(prefix_len)`,
     /// where `prefix_len` is the number of leading zeroes. Return `None` otherwise.
@@ -131,7 +137,7 @@ impl AddressExt for Address {
         Address::from(bytes)
     }
 
-    fn is_unicast(&self) -> bool {
+    fn x_is_unicast(&self) -> bool {
         !(self.is_multicast() || self.is_unspecified())
     }
 
@@ -143,7 +149,7 @@ impl AddressExt for Address {
         self.octets()[0..8] == [0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
     }
 
-    fn is_unique_local(&self) -> bool {
+    fn x_is_unique_local(&self) -> bool {
         (self.octets()[0] & 0b1111_1110) == 0xfc
     }
 
@@ -163,7 +169,7 @@ impl AddressExt for Address {
     }
 
     fn solicited_node(&self) -> Address {
-        assert!(self.is_unicast());
+        assert!(self.x_is_unicast());
         let o = self.octets();
         Address::from([
             0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xFF, o[13],
@@ -171,14 +177,14 @@ impl AddressExt for Address {
         ])
     }
 
-    fn multicast_scope(&self) -> MulticastScope {
+    fn x_multicast_scope(&self) -> MulticastScope {
         if self.is_multicast() {
             return MulticastScope::from(self.octets()[1] & 0b1111);
         }
 
         if self.is_link_local() {
             MulticastScope::LinkLocal
-        } else if self.is_unique_local() || self.is_global_unicast() {
+        } else if self.x_is_unique_local() || self.is_global_unicast() {
             // ULA are considered global scope
             // https://www.rfc-editor.org/rfc/rfc6724#section-3.1
             MulticastScope::Global
@@ -680,13 +686,13 @@ pub(crate) mod test {
         assert!(LINK_LOCAL_ALL_ROUTERS.is_multicast());
         assert!(!LINK_LOCAL_ALL_ROUTERS.is_link_local());
         assert!(!LINK_LOCAL_ALL_ROUTERS.is_loopback());
-        assert!(!LINK_LOCAL_ALL_ROUTERS.is_unique_local());
+        assert!(!LINK_LOCAL_ALL_ROUTERS.x_is_unique_local());
         assert!(!LINK_LOCAL_ALL_ROUTERS.is_global_unicast());
         assert!(!LINK_LOCAL_ALL_NODES.is_unspecified());
         assert!(LINK_LOCAL_ALL_NODES.is_multicast());
         assert!(!LINK_LOCAL_ALL_NODES.is_link_local());
         assert!(!LINK_LOCAL_ALL_NODES.is_loopback());
-        assert!(!LINK_LOCAL_ALL_NODES.is_unique_local());
+        assert!(!LINK_LOCAL_ALL_NODES.x_is_unique_local());
         assert!(!LINK_LOCAL_ALL_NODES.is_global_unicast());
     }
 
@@ -696,7 +702,7 @@ pub(crate) mod test {
         assert!(!LINK_LOCAL_ADDR.is_multicast());
         assert!(LINK_LOCAL_ADDR.is_link_local());
         assert!(!LINK_LOCAL_ADDR.is_loopback());
-        assert!(!LINK_LOCAL_ADDR.is_unique_local());
+        assert!(!LINK_LOCAL_ADDR.x_is_unique_local());
         assert!(!LINK_LOCAL_ADDR.is_global_unicast());
     }
 
@@ -706,7 +712,7 @@ pub(crate) mod test {
         assert!(!Address::LOCALHOST.is_multicast());
         assert!(!Address::LOCALHOST.is_link_local());
         assert!(Address::LOCALHOST.is_loopback());
-        assert!(!Address::LOCALHOST.is_unique_local());
+        assert!(!Address::LOCALHOST.x_is_unique_local());
         assert!(!Address::LOCALHOST.is_global_unicast());
     }
 
@@ -716,7 +722,7 @@ pub(crate) mod test {
         assert!(!UNIQUE_LOCAL_ADDR.is_multicast());
         assert!(!UNIQUE_LOCAL_ADDR.is_link_local());
         assert!(!UNIQUE_LOCAL_ADDR.is_loopback());
-        assert!(UNIQUE_LOCAL_ADDR.is_unique_local());
+        assert!(UNIQUE_LOCAL_ADDR.x_is_unique_local());
         assert!(!UNIQUE_LOCAL_ADDR.is_global_unicast());
     }
 
@@ -726,7 +732,7 @@ pub(crate) mod test {
         assert!(!GLOBAL_UNICAST_ADDR.is_multicast());
         assert!(!GLOBAL_UNICAST_ADDR.is_link_local());
         assert!(!GLOBAL_UNICAST_ADDR.is_loopback());
-        assert!(!GLOBAL_UNICAST_ADDR.is_unique_local());
+        assert!(!GLOBAL_UNICAST_ADDR.x_is_unique_local());
         assert!(GLOBAL_UNICAST_ADDR.is_global_unicast());
     }
 
@@ -903,46 +909,52 @@ pub(crate) mod test {
     fn test_scope() {
         use super::*;
         assert_eq!(
-            Address::new(0xff01, 0, 0, 0, 0, 0, 0, 1).multicast_scope(),
+            Address::new(0xff01, 0, 0, 0, 0, 0, 0, 1).x_multicast_scope(),
             MulticastScope::InterfaceLocal
         );
         assert_eq!(
-            Address::new(0xff02, 0, 0, 0, 0, 0, 0, 1).multicast_scope(),
+            Address::new(0xff02, 0, 0, 0, 0, 0, 0, 1).x_multicast_scope(),
             MulticastScope::LinkLocal
         );
         assert_eq!(
-            Address::new(0xff03, 0, 0, 0, 0, 0, 0, 1).multicast_scope(),
+            Address::new(0xff03, 0, 0, 0, 0, 0, 0, 1).x_multicast_scope(),
             MulticastScope::Unknown
         );
         assert_eq!(
-            Address::new(0xff04, 0, 0, 0, 0, 0, 0, 1).multicast_scope(),
+            Address::new(0xff04, 0, 0, 0, 0, 0, 0, 1).x_multicast_scope(),
             MulticastScope::AdminLocal
         );
         assert_eq!(
-            Address::new(0xff05, 0, 0, 0, 0, 0, 0, 1).multicast_scope(),
+            Address::new(0xff05, 0, 0, 0, 0, 0, 0, 1).x_multicast_scope(),
             MulticastScope::SiteLocal
         );
         assert_eq!(
-            Address::new(0xff08, 0, 0, 0, 0, 0, 0, 1).multicast_scope(),
+            Address::new(0xff08, 0, 0, 0, 0, 0, 0, 1).x_multicast_scope(),
             MulticastScope::OrganizationLocal
         );
         assert_eq!(
-            Address::new(0xff0e, 0, 0, 0, 0, 0, 0, 1).multicast_scope(),
+            Address::new(0xff0e, 0, 0, 0, 0, 0, 0, 1).x_multicast_scope(),
             MulticastScope::Global
         );
 
         assert_eq!(
-            LINK_LOCAL_ALL_NODES.multicast_scope(),
+            LINK_LOCAL_ALL_NODES.x_multicast_scope(),
             MulticastScope::LinkLocal
         );
 
         // For source address selection, unicast addresses also have a scope:
-        assert_eq!(LINK_LOCAL_ADDR.multicast_scope(), MulticastScope::LinkLocal);
         assert_eq!(
-            GLOBAL_UNICAST_ADDR.multicast_scope(),
+            LINK_LOCAL_ADDR.x_multicast_scope(),
+            MulticastScope::LinkLocal
+        );
+        assert_eq!(
+            GLOBAL_UNICAST_ADDR.x_multicast_scope(),
+            MulticastScope::Global
+        );
+        assert_eq!(
+            UNIQUE_LOCAL_ADDR.x_multicast_scope(),
             MulticastScope::Global
         );
-        assert_eq!(UNIQUE_LOCAL_ADDR.multicast_scope(), MulticastScope::Global);
     }
 
     static REPR_PACKET_BYTES: [u8; 52] = [