From a2aded3bcdb29451df735ac6298320dd6771c02b Mon Sep 17 00:00:00 2001
From: notoriaga <smeyer@fastmail.com>
Date: Mon, 13 Nov 2023 09:49:22 -0800
Subject: [PATCH] rust: check time source for MsgGpsTime

---
 generator/sbpg/targets/rust.py      | 10 ++++++++++
 rust/sbp/src/messages/navigation.rs | 12 ++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/generator/sbpg/targets/rust.py b/generator/sbpg/targets/rust.py
index 3a23861d47..5b09a98126 100644
--- a/generator/sbpg/targets/rust.py
+++ b/generator/sbpg/targets/rust.py
@@ -60,6 +60,16 @@
 BASE_TIME_MSGS = ["MSG_OBS", "MSG_OSR", "MSG_SSR"]
 
 CUSTOM_GPS_TIME_MSGS = {
+    "MSG_GPS_TIME": """
+if !matches!(self.time_source(), Ok(TimeSource::GnssSolution) | Ok(TimeSource::Propagated)) {
+    return None;
+}
+""".strip() + GPS_TIME,
+    "MSG_GPS_TIME_DEP_A": """
+if !matches!(self.time_source(), Ok(TimeSource::GnssSolution) | Ok(TimeSource::Propagated)) {
+    return None;
+}
+""".strip() + GPS_TIME,
     "MSG_IMU_RAW": """
 const IMU_RAW_TIME_STATUS_MASK: u32 = (1 << 30) | (1 << 31);
 if self.tow & IMU_RAW_TIME_STATUS_MASK != 0 {
diff --git a/rust/sbp/src/messages/navigation.rs b/rust/sbp/src/messages/navigation.rs
index 62b805e224..2096a75a8e 100644
--- a/rust/sbp/src/messages/navigation.rs
+++ b/rust/sbp/src/messages/navigation.rs
@@ -1888,6 +1888,12 @@ pub mod msg_gps_time {
 
         #[cfg(feature = "swiftnav")]
         fn gps_time(&self) -> Option<std::result::Result<time::MessageTime, time::GpsTimeError>> {
+            if !matches!(
+                self.time_source(),
+                Ok(TimeSource::GnssSolution) | Ok(TimeSource::Propagated)
+            ) {
+                return None;
+            }
             let tow_s = (self.tow as f64) / 1000.0;
             #[allow(clippy::useless_conversion)]
             let wn: i16 = match self.wn.try_into() {
@@ -2044,6 +2050,12 @@ pub mod msg_gps_time_dep_a {
 
         #[cfg(feature = "swiftnav")]
         fn gps_time(&self) -> Option<std::result::Result<time::MessageTime, time::GpsTimeError>> {
+            if !matches!(
+                self.time_source(),
+                Ok(TimeSource::GnssSolution) | Ok(TimeSource::Propagated)
+            ) {
+                return None;
+            }
             let tow_s = (self.tow as f64) / 1000.0;
             #[allow(clippy::useless_conversion)]
             let wn: i16 = match self.wn.try_into() {