Followup to #1649.

src/unix/linux_like/linux/musl/b64/aarch64/mod.rs

@@ -49,6 +49,24 @@ s! {
         __unused: [::c_uint; 2],
     }
 
+    pub struct nlmsghdr {
+        pub nlmsg_len: u32,
+        pub nlmsg_type: u16,
+        pub nlmsg_flags: u16,
+        pub nlmsg_seq: u32,
+        pub nlmsg_pid: u32,
+    }
+
+    pub struct nlmsgerr {
+        pub error: ::c_int,
+        pub msg: nlmsghdr,
+    }
+
+    pub struct nlattr {
+        pub nla_len: u16,
+        pub nla_type: u16,
+    }
+
     pub struct ipc_perm {
         pub __ipc_perm_key: ::key_t,
         pub uid: ::uid_t,