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-rw-r--r--etisnoop.cpp122
1 files changed, 116 insertions, 6 deletions
diff --git a/etisnoop.cpp b/etisnoop.cpp
index 11980d1..2730bdc 100644
--- a/etisnoop.cpp
+++ b/etisnoop.cpp
@@ -214,6 +214,26 @@ struct eti_analyse_config_t {
// map between fig 0/6 database key and LA to detect activation and deactivation of links
std::map<unsigned short, bool> fig06_key_la;
+// fig 0/18 0/19 announcement types (ETSI TS 101 756 table 14 & 15)
+const char *announcement_types_str[16] = {
+ "Alarm",
+ "Road Traffic flash",
+ "Transport flash",
+ "Warning/Service",
+ "News flash",
+ "Area weather flash",
+ "Event announcement",
+ "Special event",
+ "Programme Information",
+ "Sport report",
+ "Financial report",
+ "Reserved for future definition",
+ "Reserved for future definition",
+ "Reserved for future definition",
+ "Reserved for future definition",
+ "Reserved for future definition"
+};
+
// Globals
static int verbosity;
@@ -1004,8 +1024,8 @@ void decodeFIG(FIGalyser &figs,
if (cn == 0) { // Id_list_flag=0 && cn=0: CEI Change Event Indication
strcat(signal_link, " CEI");
}
- sprintf(desc, "Id list flag=%d LA=%d S/H=%d ILS=%d LSN=%d database key=0x%04x%s",
- Id_list_flag, LA, SH, ILS, LSN, key, signal_link);
+ sprintf(desc, "Id list flag=%d, LA=%d %s, S/H=%d %s, ILS=%d %s, LSN=%d, database key=0x%04x%s",
+ Id_list_flag, LA, (LA)?"active":"inactive", SH, (SH)?"Hard":"Soft", ILS, (ILS)?"international":"national", LSN, key, signal_link);
printbuf(desc, indent+1, NULL, 0);
}
else { // Id_list_flag == 1
@@ -1014,8 +1034,8 @@ void decodeFIG(FIGalyser &figs,
if (pd == 0) {
IdLQ = (f[i] >> 5) & 0x03;
Shd = (f[i] >> 4) & 0x01;
- sprintf(desc, "Id list flag=%d LA=%d S/H=%d ILS=%d LSN=%d database key=0x%04x IdLQ=%d Shd=%d Number of Ids=%d%s",
- Id_list_flag, LA, SH, ILS, LSN, key, IdLQ, Shd, Number_of_Ids, signal_link);
+ sprintf(desc, "Id list flag=%d, LA=%d %s, S/H=%d %s, ILS=%d %s, LSN=%d, database key=0x%04x, IdLQ=%d, Shd=%d %s, Number of Ids=%d%s",
+ Id_list_flag, LA, (LA)?"active":"inactive", SH, (SH)?"Hard":"Soft", ILS, (ILS)?"international":"national", LSN, key, IdLQ, Shd, (Shd)?"b11-8 in 4-F are different services":"single service", Number_of_Ids, signal_link);
printbuf(desc, indent+1, NULL, 0);
if (ILS == 0) {
// read Id list
@@ -1079,8 +1099,8 @@ void decodeFIG(FIGalyser &figs,
}
}
else { // pd == 1
- sprintf(desc, "Id list flag=%d LA=%d S/H=%d ILS=%d LSN=%d database key=0x%04x Number of Ids=%d%s",
- Id_list_flag, LA, SH, ILS, LSN, key, Number_of_Ids, signal_link);
+ sprintf(desc, "Id list flag=%d, LA=%d %s, S/H=%d %s, ILS=%d %s, LSN=%d, database key=0x%04x, Number of Ids=%d%s",
+ Id_list_flag, LA, (LA)?"active":"inactive", SH, (SH)?"Hard":"Soft", ILS, (ILS)?"international":"national", LSN, key, Number_of_Ids, signal_link);
printbuf(desc, indent+1, NULL, 0);
if (Number_of_Ids > 0) {
// read Id list
@@ -1180,6 +1200,96 @@ void decodeFIG(FIGalyser &figs,
}
}
break;
+ case 18: // FIG 0/18
+ {
+ unsigned int key;
+ unsigned short SId, Asu_flags;
+ unsigned char i = 1, j, Rfa, Number_clusters;
+ char tmpbuf[256];
+
+ while (i < (figlen - 4)) {
+ // iterate over announcement support
+ // SId, Asu flags, Rfa, Number of clusters
+ SId = (f[i] << 8) | f[i+1];
+ Asu_flags = (f[i+2] << 8) | f[i+3];
+ Rfa = (f[i+4] >> 5);
+ Number_clusters = (f[i+4] & 0x1F);
+ sprintf(desc, "SId=0x%04x, Asu flags=0x%04x, Rfa=%d", SId, Asu_flags, Rfa);
+ if (Rfa != 0) {
+ strcat(desc, " invalid value");
+ }
+ sprintf(tmpbuf, ", Number of clusters=%d", Number_clusters);
+ strcat(desc, tmpbuf);
+ key = ((unsigned int)oe << 17) | ((unsigned int)pd << 16) | (unsigned int)SId;
+ sprintf(tmpbuf, ", database key=0x%05x", key);
+ strcat(desc, tmpbuf);
+ // CEI Change Event Indication
+ if ((Number_clusters == 0) && (Asu_flags == 0)) {
+ sprintf(tmpbuf, ", CEI");
+ strcat(desc, tmpbuf);
+ }
+ printbuf(desc, indent+1, NULL, 0);
+ i += 5;
+ j = i;
+ while (j < (i + Number_clusters)) {
+ // iterate over Cluster Id
+ sprintf(desc, "Cluster Id=0x%02x", f[j]);
+ printbuf(desc, indent+2, NULL, 0);
+ j++;
+ }
+ // decode announcement support types
+ for(j = 0; j < 16; j++) {
+ if (Asu_flags & (1 << j)) {
+ sprintf(desc, "Announcement support=%s", announcement_types_str[j]);
+ printbuf(desc, indent+2, NULL, 0);
+ }
+ }
+ i += Number_clusters;
+ }
+ }
+ break;
+ case 19: // FIG 0/19
+ {
+ unsigned short Asw_flags;
+ unsigned char i = 1, j, Cluster_Id, SubChId, Rfa, RegionId_LP;
+ char tmpbuf[256];
+ bool New_flag, Region_flag;
+
+ while (i < (figlen - 3)) {
+ // iterate over announcement switching
+ // Cluster Id, Asw flags, New flag, Region flag,
+ // SubChId, Rfa, Region Id Lower Part
+ Cluster_Id = f[i];
+ Asw_flags = (f[i+1] << 8) | f[i+2];
+ New_flag = (f[i+3] >> 7);
+ Region_flag = (f[i+3] >> 6) & 0x1;
+ SubChId = (f[i+3] & 0x3F);
+ sprintf(desc, "Cluster Id=0x%02x, Asw flags=0x%04x, New flag=%d %s, Region flag=%d last byte %s, SubChId=%d",
+ Cluster_Id, Asw_flags, New_flag, (New_flag)?"new":"repeat", Region_flag, (Region_flag)?"present":"absent", SubChId);
+ if ((Region_flag) && (i < (figlen - 4))) {
+ // read region lower part
+ Rfa = (f[i+4] >> 6);
+ RegionId_LP = (f[i+4] & 0x3F);
+ sprintf(tmpbuf, ", Rfa=%d", Rfa);
+ strcat(desc, tmpbuf);
+ if (Rfa != 0) {
+ strcat(desc, " invalid value");
+ }
+ sprintf(tmpbuf, ", Region Lower Part=0x%02x", RegionId_LP);
+ strcat(desc, tmpbuf);
+ }
+ printbuf(desc, indent+1, NULL, 0);
+ // decode announcement switching types
+ for(j = 0; j < 16; j++) {
+ if (Asw_flags & (1 << j)) {
+ sprintf(desc, "Announcement switching=%s", announcement_types_str[j]);
+ printbuf(desc, indent+2, NULL, 0);
+ }
+ }
+ i += (4 + Region_flag);
+ }
+ }
+ break;
case 21: // FIG 0/21
{
float freq;
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 07:49:00 +0000