diff --git a/embassy-net/src/lib.rs b/embassy-net/src/lib.rs index 0d0a986f6..f43e3797b 100644 --- a/embassy-net/src/lib.rs +++ b/embassy-net/src/lib.rs @@ -531,11 +531,14 @@ impl Inner { debug!(" IP address: {}", config.address); s.iface.update_ip_addrs(|addrs| { - if addrs.is_empty() { - addrs.push(IpCidr::Ipv4(config.address)).unwrap(); - } else { - addrs[0] = IpCidr::Ipv4(config.address); + if let Some((index, _)) = addrs + .iter() + .enumerate() + .find(|(_, &addr)| matches!(addr, IpCidr::Ipv4(_))) + { + addrs.remove(index); } + addrs.push(IpCidr::Ipv4(config.address)).unwrap(); }); #[cfg(feature = "medium-ethernet")] @@ -570,11 +573,14 @@ impl Inner { debug!(" IP address: {}", config.address); s.iface.update_ip_addrs(|addrs| { - if addrs.is_empty() { - addrs.push(IpCidr::Ipv6(config.address)).unwrap(); - } else { - addrs[0] = IpCidr::Ipv6(config.address); + if let Some((index, _)) = addrs + .iter() + .enumerate() + .find(|(_, &addr)| matches!(addr, IpCidr::Ipv6(_))) + { + addrs.remove(index); } + addrs.push(IpCidr::Ipv6(config.address)).unwrap(); }); #[cfg(feature = "medium-ethernet")] @@ -643,12 +649,19 @@ impl Inner { } #[allow(unused)] // used only with dhcp - fn unapply_config(&mut self, s: &mut SocketStack) { + fn unapply_config_v4(&mut self, s: &mut SocketStack) { #[cfg(feature = "medium-ethernet")] let medium = self.device.capabilities().medium; - debug!("Lost IP configuration"); - s.iface.update_ip_addrs(|ip_addrs| ip_addrs.clear()); + s.iface.update_ip_addrs(|ip_addrs| { + if let Some((index, _)) = ip_addrs + .iter() + .enumerate() + .find(|(index, &addr)| matches!(addr, IpCidr::Ipv4(_))) + { + ip_addrs.remove(index); + } + }); #[cfg(feature = "medium-ethernet")] if medium == Medium::Ethernet { #[cfg(feature = "proto-ipv4")] @@ -695,7 +708,7 @@ impl Inner { if self.link_up { match socket.poll() { None => {} - Some(dhcpv4::Event::Deconfigured) => self.unapply_config(s), + Some(dhcpv4::Event::Deconfigured) => self.unapply_config_v4(s), Some(dhcpv4::Event::Configured(config)) => { let config = StaticConfigV4 { address: config.address, @@ -707,7 +720,7 @@ impl Inner { } } else if old_link_up { socket.reset(); - self.unapply_config(s); + self.unapply_config_v4(s); } } //if old_link_up || self.link_up {