reference: report same values in tracking command as in NTP

Use REF_GetReferenceParams() in the tracking command to simplify the
code and report the same values as what NTP clients of the server see.

When the local reference mode is active, this changes the leap status to
synchronised and reference time to one second behind current time. When
not synchronised, the root delay and root dispersion are now 1 second.

reference.c

@@ -1367,52 +1367,34 @@ int REF_IsLeapSecondClose(void)
 void
 REF_GetTrackingReport(RPT_TrackingReport *rep)
 {
-  double elapsed;
-  double extra_dispersion;
   struct timeval now_raw, now_cooked;
   double correction;
+  int synchronised;
 
   LCL_ReadRawTime(&now_raw);
   LCL_GetOffsetCorrection(&now_raw, &correction, NULL);
   UTI_AddDoubleToTimeval(&now_raw, correction, &now_cooked);
 
-  rep->ref_id = NTP_REFID_UNSYNC;
+  REF_GetReferenceParams(&now_cooked, &synchronised,
+                         &rep->leap_status, &rep->stratum,
+                         &rep->ref_id, &rep->ref_time,
+                         &rep->root_delay, &rep->root_dispersion);
+
+  if (rep->stratum == NTP_MAX_STRATUM)
+    rep->stratum = 0;
+
   rep->ip_addr.family = IPADDR_UNSPEC;
-  rep->stratum = 0;
-  rep->leap_status = our_leap_status;
-  rep->ref_time.tv_sec = 0;
-  rep->ref_time.tv_usec = 0;
   rep->current_correction = correction;
   rep->freq_ppm = LCL_ReadAbsoluteFrequency();
   rep->resid_freq_ppm = 0.0;
   rep->skew_ppm = 0.0;
-  rep->root_delay = 0.0;
-  rep->root_dispersion = 0.0;
   rep->last_update_interval = last_ref_update_interval;
   rep->last_offset = last_offset;
   rep->rms_offset = sqrt(avg2_offset);
 
   if (are_we_synchronised) {
-    
-    UTI_DiffTimevalsToDouble(&elapsed, &now_cooked, &our_ref_time);
-    extra_dispersion = (our_skew + fabs(our_residual_freq) + LCL_GetMaxClockError()) * elapsed;
-    
-    rep->ref_id = our_ref_id;
     rep->ip_addr = our_ref_ip;
-    rep->stratum = our_stratum;
-    rep->ref_time = our_ref_time;
     rep->resid_freq_ppm = 1.0e6 * our_residual_freq;
     rep->skew_ppm = 1.0e6 * our_skew;
-    rep->root_delay = our_root_delay;
-    rep->root_dispersion = our_root_dispersion + extra_dispersion;
-
-  } else if (enable_local_stratum) {
-
-    rep->ref_id = NTP_REFID_LOCAL;
-    rep->ip_addr.family = IPADDR_UNSPEC;
-    rep->stratum = local_stratum;
-    rep->ref_time = now_cooked;
-    rep->root_dispersion = LCL_GetSysPrecisionAsQuantum();
   }
-
 }

reports.h

@@ -29,6 +29,7 @@
 
 #include "sysincl.h"
 #include "addressing.h"
+#include "ntp.h"
 
 #define REPORT_INVALID_OFFSET 0x80000000
 
@@ -50,8 +51,8 @@ typedef struct {
 typedef struct {
   uint32_t ref_id;
   IPAddr ip_addr;
-  unsigned long stratum;
+  int stratum;
-  unsigned long leap_status;
+  NTP_Leap leap_status;
   struct timeval ref_time;
   double current_correction;
   double last_offset;

test/simulation/115-cmdmontime

@@ -10,7 +10,7 @@ grep -q 'HAVE_LONG_TIME_T 1' ../../config.h || test_skip
 limit=2
 client_server_options="noselect"
 client_conf="local stratum 1"
-chronyc_start="0.5"
+chronyc_start="1.5"
 chronyc_conf="tracking"
 
 for year in `seq 1850 100 2300`; do