1 files changed, 51 insertions, 0 deletions

diff --git a/src/sys/socket/mod.rs b/src/sys/socket/mod.rs
index dcac2818..9df5ed4a 100644
--- a/src/sys/socket/mod.rs
+++ b/src/sys/socket/mod.rs
@@ -198,6 +198,28 @@ pub enum SockProtocol {
     NetlinkCrypto = libc::NETLINK_CRYPTO,
 }
 
+#[cfg(any(target_os = "linux"))]
+libc_bitflags! {
+    /// Configuration flags for `SO_TIMESTAMPING` interface
+    ///
+    /// For use with [`Timestamping`][sockopt::Timestamping].
+    /// [Further reading](https://www.kernel.org/doc/html/latest/networking/timestamping.html)
+    pub struct TimestampingFlag: c_uint {
+        /// Report any software timestamps when available.
+        SOF_TIMESTAMPING_SOFTWARE;
+        /// Report hardware timestamps as generated by SOF_TIMESTAMPING_TX_HARDWARE when available.
+        SOF_TIMESTAMPING_RAW_HARDWARE;
+        /// Collect transmiting timestamps as reported by hardware
+        SOF_TIMESTAMPING_TX_HARDWARE;
+        /// Collect transmiting timestamps as reported by software
+        SOF_TIMESTAMPING_TX_SOFTWARE;
+        /// Collect receiving timestamps as reported by hardware
+        SOF_TIMESTAMPING_RX_HARDWARE;
+        /// Collect receiving timestamps as reported by software
+        SOF_TIMESTAMPING_RX_SOFTWARE;
+    }
+}
+
 libc_bitflags!{
     /// Additional socket options
     pub struct SockFlag: c_int {
@@ -641,6 +663,11 @@ pub enum ControlMessageOwned {
     /// # }
     /// ```
     ScmTimestamp(TimeVal),
+    /// A set of nanosecond resolution timestamps
+    ///
+    /// [Further reading](https://www.kernel.org/doc/html/latest/networking/timestamping.html)
+    #[cfg(all(target_os = "linux"))]
+    ScmTimestampsns(Timestamps),
     /// Nanoseconds resolution timestamp
     ///
     /// [Further reading](https://www.kernel.org/doc/html/latest/networking/timestamping.html)
@@ -732,6 +759,18 @@ pub enum ControlMessageOwned {
     Unknown(UnknownCmsg),
 }
 
+/// For representing packet timestamps via `SO_TIMESTAMPING` interface
+#[cfg(all(target_os = "linux"))]
+#[derive(Copy, Clone, Debug, Eq, PartialEq)]
+pub struct Timestamps {
+    /// software based timestamp, usually one containing data
+    pub system: TimeSpec,
+    /// legacy timestamp, usually empty
+    pub hw_trans: TimeSpec,
+    /// hardware based timestamp
+    pub hw_raw: TimeSpec,
+}
+
 impl ControlMessageOwned {
     /// Decodes a `ControlMessageOwned` from raw bytes.
     ///
@@ -776,6 +815,18 @@ impl ControlMessageOwned {
                 let ts: libc::timespec = ptr::read_unaligned(p as *const _);
                 ControlMessageOwned::ScmTimestampns(TimeSpec::from(ts))
             }
+            #[cfg(all(target_os = "linux"))]
+            (libc::SOL_SOCKET, libc::SCM_TIMESTAMPING) => {
+                let tp = p as *const libc::timespec;
+                let ts: libc::timespec = ptr::read_unaligned(tp);
+                let system = TimeSpec::from(ts);
+                let ts: libc::timespec = ptr::read_unaligned(tp.add(1));
+                let hw_trans = TimeSpec::from(ts);
+                let ts: libc::timespec = ptr::read_unaligned(tp.add(2));
+                let hw_raw = TimeSpec::from(ts);
+                let timestamping = Timestamps { system, hw_trans, hw_raw };
+                ControlMessageOwned::ScmTimestampsns(timestamping)
+            }
             #[cfg(any(
                 target_os = "android",
                 target_os = "freebsd",