int dsmcc_GroupInfoIndication (int v, u_char *b, u_int len_org)
{
int len = len_org;
int n_groups;
int i;
int len2;
// -- due to some misbehavior of some service providers
// -- we do a simple plausi check for group_counts_min_bytes > len
i = getBits (b, 0, 0, 16); // group_counts
i = i * 8 + 2;
if (i > len_org) { // this is no GroupInfo
print_databytes (v,"Data Bytes (non-standard):", b, len_org);
return len_org;
}
out_nl (v,"GroupInfoIndication:");
indent (+1);
n_groups = outBit_Sx_NL (v,"NumberOfGroups: ", b, 0, 16);
b += 2;
len -= 2;
for (i=0; i < n_groups; i++) {
out_NL (v);
if (len <= 0) {
out_nl (v, "... => strange len <= 0 and still group count > 0 (abort)");
break;
}
out_nl (v, "Group (%d):",i);
indent (+1);
outBit_Sx_NL (v,"GroupId: ", b, 0, 32);
outBit_Sx_NL (v,"GroupSize: ", b, 32, 32);
b += 8;
len -= 8;
// GroupCompatibility()
len2 = dsmcc_CompatibilityDescriptor (b);
b += len2;
len -= len2;
len2 = outBit_Sx_NL (v,"GroupInfoLength: ", b, 0, 16);
// print_databytes (v, "GroupInfoBytes: ", b+2, len2); // $$$ TODO
dsmcc_CarouselDescriptor_Loop ("GroupInfo", b+2, len2);
b += 2+len2;
len -= 2+len2;
len2 = outBit_Sx_NL (v,"PrivateDataLength: ", b, 0, 16);
print_private_data (v, b+2, len2); // $$$ What to do here?
b += 2+len2;
len -= 2+len2;
indent (-1);
}
indent (-1);
out_NL (v);
return len_org;
}
void section_DSMCC (u_char *b, int len)
{
/* TR 101 202 */
int len1;
u_int table_id;
u_int section_length;
u_int section_syntax_indicator;
u_int private_indicator;
u_int sect_nr;
u_int last_sect_nr;
out_nl (3,"DSM-CC-decoding....");
table_id = outBit_S2x_NL (3,"Table_ID: ", b, 0, 8,
(char *(*)(u_long))dvbstrTableID );
if (table_id < 0x3a || table_id > 0x3e) {
out_nl (3,"wrong Table ID");
return;
}
section_syntax_indicator =
outBit_Sx_NL (4,"Section_syntax_indicator: ", b, 8, 1);
private_indicator =
outBit_Sx_NL (4,"private_indicator: ", b, 9, 1);
outBit_Sx_NL (6,"reserved_1: ", b,10, 2);
section_length =
outBit_Sx_NL (5,"dsmcc_section_length: ", b,12,12);
outBit_Sx_NL (3,"table_id_extension: ", b,24,16);
outBit_Sx_NL (6,"reserved_3: ", b,40, 2);
outBit_Sx_NL (3,"Version_number: ", b,42, 5);
outBit_S2x_NL(3,"Current_next_indicator: ", b,47, 1,
(char *(*)(u_long))dvbstrCurrentNextIndicator );
sect_nr = outBit_Sx_NL (3,"Section_number: ", b,48, 8);
last_sect_nr = outBit_Sx_NL (3,"Last_section_number: ", b,56, 8);
b += 8;
len1 = section_length - 5 - 4; // -4 == CRC/Checksum
if (table_id == 0x3A) {
llc_snap (3,b); // ISO/IEC 8802-2
} else if (table_id == 0x3B) {
dsmcc_UserNetworkMessage (4, b, len1);
} else if (table_id == 0x3C) {
dsmcc_DownloadDataMessage (4, b, len1);
} else if (table_id == 0x3D) {
DSMCC_descriptor_list (b,len1);
} else if (table_id == 0x3E) { // $$$ Remark: DVB defines 0x3E as datagram!!
print_private_data (4, b, len1);
}
b += len1;
outBit_Sx_NL (5, (section_syntax_indicator)
?"CRC: " :"Checksum: ", b,0,32);
}
