freebsd: add rt_msghdr and rt_metrics

libc-test/semver/freebsd.txt

@@ -2314,6 +2314,8 @@ regfree
 register_t
 regmatch_t
 regoff_t
+rt_metrics
+rt_msghdr
 rtprio
 rtprio_thread
 sallocx

src/new/freebsd/net/mod.rs

@@ -4,3 +4,4 @@
 
 pub(crate) mod dlt;
 pub(crate) mod if_mib;
+pub(crate) mod route;

src/new/freebsd/net/route.rs

@@ -0,0 +1,39 @@
+//! Header: `net/route.h`
+//!
+//! <https://github.com/freebsd/freebsd-src/blob/main/sys/net/route.h>
+
+use crate::prelude::*;
+
+s_with_default! {
+    pub struct rt_metrics {
+        pub rmx_locks: c_ulong,
+        pub rmx_mtu: c_ulong,
+        pub rmx_hopcount: c_ulong,
+        pub rmx_expire: c_ulong,
+        pub rmx_recvpipe: c_ulong,
+        pub rmx_sendpipe: c_ulong,
+        pub rmx_ssthresh: c_ulong,
+        pub rmx_rtt: c_ulong,
+        pub rmx_rttvar: c_ulong,
+        pub rmx_pksent: c_ulong,
+        pub rmx_weight: c_ulong,
+        pub rmx_nhidx: c_ulong,
+        rmx_filler: Padding<[c_ulong; 2]>,
+    }
+
+    pub struct rt_msghdr {
+        pub rtm_msglen: c_ushort,
+        pub rtm_version: c_uchar,
+        pub rtm_type: c_uchar,
+        pub rtm_index: c_ushort,
+        _rtm_spare1: Padding<c_ushort>,
+        pub rtm_flags: c_int,
+        pub rtm_addrs: c_int,
+        pub rtm_pid: crate::pid_t,
+        pub rtm_seq: c_int,
+        pub rtm_errno: c_int,
+        pub rtm_fmask: c_int,
+        pub rtm_inits: c_ulong,
+        pub rtm_rmx: rt_metrics,
+    }
+}

src/new/mod.rs

@@ -229,6 +229,7 @@ cfg_if! {
         pub use net::dlt::*;
         // FIXME(1.0,remove): these bindings should be left in a public submodule.
         pub use net::if_mib::*;
+        pub use net::route::*;
         pub use netinet6::in6_var::*;
         pub use sys::file::*;
         pub use sys::ioccom::*;