diff options
Diffstat (limited to 'etisnoop.cpp')
| -rw-r--r-- | etisnoop.cpp | 97 |
1 files changed, 95 insertions, 2 deletions
diff --git a/etisnoop.cpp b/etisnoop.cpp index d9a41b0..3876a78 100644 --- a/etisnoop.cpp +++ b/etisnoop.cpp @@ -378,6 +378,43 @@ struct eti_analyse_config_t { static int verbosity; static unsigned char Mode_Identity = 0; +// fig 0/2 fig 0/3 DSCTy types string: +const char *DSCTy_types_str[64] = { + // ETSI TS 101 756 V1.6.1 (2014-05) table 2 + "Unspecified data", "Traffic Message Channel (TMC)", + "Emergency Warning System (EWS)", "Interactive Text Transmission System (ITTS)", + "Paging", "Transparent Data Channel (TDC)", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "MPEG-2 Transport Stream, see ETSI TS 102 427", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Rfu", + "Rfu", "Embedded IP packets", + "Multimedia Object Transfer (MOT)", "Proprietary service: no DSCTy signalled", + "Not used", "Not used" +}; + // map between fig 0/6 database key and LA to detect activation and deactivation of links std::map<unsigned short, bool> fig0_6_key_la; @@ -463,6 +500,14 @@ typedef struct lat_lng { // map for fig 0/22 database std::map<unsigned short, Lat_Lng> fig0_22_key_Lat_Lng; +// ETSI TS 102 367 V1.2.1 (2006-01) 5.4.1 Conditional Access Mode (CAMode) +const char *CAMode_str[8] = { + "Sub-channel CA", "Data Group CA", + "MOT CA", "proprietary CA", + "reserved", "reserved", + "reserved", "reserved" +}; + // Function prototypes void printinfo(string header, @@ -1206,13 +1251,13 @@ void decodeFIG(FIGalyser &figs, } else if (timd == 1) { // MSC stream data - sprintf(sctydesc, "DSCTy=%d", scty); + sprintf(sctydesc, "DSCTy=%d %s", scty, DSCTy_types_str[scty]); sprintf(desc, "Stream data mode, %s, %s, SubChannel ID=%02X, CA=%d", psdesc.c_str(), sctydesc, subchid, ca); printbuf(desc, indent+3, NULL, 0); } else if (timd == 2) { // FIDC - sprintf(sctydesc, "DSCTy=%d", scty); + sprintf(sctydesc, "DSCTy=%d %s", scty, DSCTy_types_str[scty]); sprintf(desc, "FIDC mode, %s, %s, Fast Information Data Channel ID=%02X, CA=%d", psdesc.c_str(), sctydesc, subchid, ca); printbuf(desc, indent+3, NULL, 0); } @@ -1226,12 +1271,60 @@ void decodeFIG(FIGalyser &figs, } } break; + case 3: // FIG 0/3 Service component in packet mode with or without Conditional Access + { // ETSI EN 300 401 6.3.2 + unsigned short SCId, Packet_address, CAOrg; + unsigned char i = 1, Rfa, DSCTy, SubChId, CAMode, SharedFlag; + char tmpbuf[256]; + bool CAOrg_flag, DG_flag, Rfu; + + while (i < (figlen - 4)) { + // iterate over service component in packet mode + SCId = ((unsigned short)f[i] << 4) | ((unsigned short)(f[i+1] >> 4) & 0x0F); + Rfa = (f[i+1] >> 1) & 0x07; + CAOrg_flag = f[i+1] & 0x01; + DG_flag = (f[i+2] >> 7) & 0x01; + Rfu = (f[i+2] >> 6) & 0x01; + DSCTy = f[i+2] & 0x3F; + SubChId = (f[i+3] >> 2); + Packet_address = ((unsigned short)(f[i+3] & 0x03) << 8) | ((unsigned short)f[i+4]); + sprintf(desc, "SCId=0x%X, CAOrg flag=%d CAOrg field %s, DG flag=%d data groups are %sused to transport the service component, DSCTy=%d %s, SubChId=0x%X, Packet address=0x%X", + SCId, CAOrg_flag, CAOrg_flag?"present":"absent", DG_flag, DG_flag?"not ":"", DSCTy, DSCTy_types_str[DSCTy], SubChId, Packet_address); + if (Rfa != 0) { + sprintf(tmpbuf, ", Rfa=%d invalid value", Rfa); + strcat(desc, tmpbuf); + } + if (Rfu != 0) { + sprintf(tmpbuf, ", Rfu=%d invalid value", Rfu); + strcat(desc, tmpbuf); + } + i += 5; + if (CAOrg_flag) { + if (i < (figlen - 1)) { + CAOrg = ((unsigned short)f[i] << 8) | ((unsigned short)f[i+1]); + CAMode = (f[i] >> 5); + SharedFlag = f[i+1]; + sprintf(tmpbuf, ", CAOrg=0x%X CAMode=%d \"%s\" SharedFlag=0x%X%s", + CAOrg, CAMode, CAMode_str[CAMode], SharedFlag, (SharedFlag == 0)?" invalid":""); + strcat(desc, tmpbuf); + } + else { + sprintf(tmpbuf, ", invalid figlen"); + strcat(desc, tmpbuf); + } + i += 2; + } + printbuf(desc, indent+1, NULL, 0); + } + } + break; case 5: // FIG 0/5 Service component language { // ETSI EN 300 401 8.1.2 unsigned short SCId; unsigned char i = 1, SubChId, FIDCId, Language, Rfa; char tmpbuf[256]; bool LS_flag, MSC_FIC_flag; + while (i < (figlen - 1)) { // iterate over service component language LS_flag = f[i] >> 7; |