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dsd-fme_20_06_2023/src/p25p2_vpdu.c

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/*-------------------------------------------------------------------------------
* p25p2_vpdu.c
* Phase 2 Variable PDU Handling
*
* LWVMOBILE
* 2022-09 DSD-FME Florida Man Edition
*-----------------------------------------------------------------------------*/
#include "dsd.h"
//MAC message lengths
static const uint8_t mac_msg_len[256] = {
0, 7, 8, 7, 0, 16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //0F
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //1F
0, 14, 15, 0, 0, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //2F
5, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //3F
9, 7, 9, 0, 9, 8, 9, 0, 10, 10, 9, 0, 10, 0, 0, 0, //4F
0, 0, 0, 0, 9, 7, 0, 0, 10, 0, 7, 0, 10, 8, 14, 7, //5F
9, 9, 0, 0, 9, 0, 0, 9, 10, 0, 7, 10, 10, 7, 0, 9, //6F
9, 29, 9, 9, 9, 9, 10, 13, 9, 9, 9, 11, 9, 9, 0, 0, //7F
8, 0, 0, 7, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //8F
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //9F
16, 0, 0, 11, 13, 11, 11, 11, 10, 0, 0, 0, 0, 0, 0, 0, //AF
17, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, //BF, b0 was 0, set to 17
11, 0, 0, 8, 15, 12, 15, 32, 12, 12, 0, 27, 14, 29, 29, 32, //CF
0, 0, 0, 0, 0, 0, 9, 0, 14, 29, 11, 27, 14, 0, 40, 11, //DF
28, 0, 0, 14, 17, 14, 0, 0, 16, 8, 11, 0, 13, 19, 0, 0, //EF
0, 0, 16, 14, 0, 0, 12, 0, 22, 0, 11, 13, 11, 0, 15, 0 }; //FF
//MAC PDU 3-bit Opcodes BBAC (8.4.1) p 123:
//0 - reserved //1 - Mac PTT //2 - Mac End PTT //3 - Mac Idle //4 - Mac Active
//5 - reserved //6 - Mac Hangtime //7 - reserved //Mac PTT BBAC p80
void process_MAC_VPDU(dsd_opts * opts, dsd_state * state, int type, unsigned long long int MAC[24])
{
//handle variable content MAC PDUs (Active, Idle, Hangtime, or Signal)
//use type to specify SACCH or FACCH, so we know if we should invert the currentslot when assigning ids etc
//b values - 0 = Unique TDMA Message, 1 Phase 1 OSP/ISP abbreviated
// 2 = Manufacturer Message, 3 Phase 1 OSP/ISP extended/explicit
int len_a = 0;
int len_b = mac_msg_len[MAC[1]];
int len_c = 0;
//sanity check
if (len_b < 19 && type == 1)
{
len_c = mac_msg_len[MAC[1+len_b]];
}
if (len_b < 16 && type == 0)
{
len_c = mac_msg_len[MAC[1+len_b]];
}
int slot = 9;
if (type == 1) //0 for F, 1 for S
{
slot = (state->currentslot ^ 1) & 1; //flip slot internally for SACCH
}
else slot = state->currentslot;
//assigning here if OECI MAC SIGNAL, after passing RS and CRC
if (state->p2_is_lcch)
{
if (slot == 0) state->dmrburstL = 30;
else state->dmrburstR = 30;
}
if (len_b == 0 || len_b > 18)
{
goto END_PDU;
}
for (int i = 0; i < 2; i++)
{
//Group Voice Channel Grant (GRP_V_CH_GRANT)
if (MAC[1+len_a] == 0x40)
{
int svc = MAC[2+len_a];
int channel = (MAC[3+len_a] << 8) | MAC[4+len_a];
int group = (MAC[5+len_a] << 8) | MAC[6+len_a];
int source = (MAC[7+len_a] << 16) | (MAC[8+len_a] << 8) | MAC[9+len_a];
fprintf (stderr, "\n Group Voice Channel Grant Update");
fprintf (stderr, "\n SVC [%02X] CHAN [%04X] Group [%d] Source [%d]", svc, channel, group, source);
process_channel_to_freq (opts, state, channel);
}
//Unit-to-Unit Voice Service Channel Grant (UU_V_CH_GRANT)
if (MAC[1+len_a] == 0x44)
{
int channel = (MAC[2+len_a] << 8) | MAC[3+len_a];
int target = (MAC[4+len_a] << 16) | (MAC[5+len_a] << 8) | MAC[6+len_a];
int source = (MAC[7+len_a] << 16) | (MAC[8+len_a] << 8) | MAC[9+len_a];
fprintf (stderr, "\n Unit to Unit Channel Grant");
fprintf (stderr, "\n CHAN [%04X] Source [%d] Target [%d]", channel, source, target);
process_channel_to_freq (opts, state, channel);
}
//Unit-to-Unit Answer Request (UU_ANS_REQ)
if (MAC[1+len_a] == 0x45)
{
int svc = MAC[2+len_a];
int answer = MAC[3+len_a];
int target = (MAC[4+len_a] << 16) | (MAC[5+len_a] << 8) | MAC[6+len_a];
int source = (MAC[7+len_a] << 16) | (MAC[8+len_a] << 8) | MAC[9+len_a];
fprintf (stderr, "\n Unit to Unit Channel Answer Request");
fprintf (stderr, "\n SVC [%02X] Answer [%02X] Source [%d] Target [%d]", svc, answer, source, target);
}
//Telephone Interconnect Voice Channel Grant (TELE_INT_CH_GRANT)
if (MAC[1+len_a] == 0x48)
{
fprintf (stderr, "\n Telephone Interconnect Voice Channel Grant (TELE_INT_CH_GRANT)");
}
//Telephone Interconnect Voice Channel Grant Update (TELE_INT_CH_GRANT_UPDT)
if (MAC[1+len_a] == 0x49)
{
fprintf (stderr, "\n Telephone Interconnect Voice Channel Grant Update (TELE_INT_CH_GRANT_UPDT)");
}
//Synchronization Broadcast (SYNC_BCST)
if (MAC[1+len_a] == 0x70)
{
fprintf (stderr, "\n Synchronization Broadcast (SYNC_BCST)");
}
//identifier update VHF/UHF
if (MAC[1+len_a] == 0x74)
{
state->p25_chan_iden = MAC[2+len_a] >> 4;
int iden = state->p25_chan_iden;
state->p25_chan_type[iden] = 1;
int bw_vu = (MAC[2+len_a] & 0xF);
state->p25_trans_off[iden] = (MAC[3+len_a] << 6) | (MAC[4+len_a] >> 2);
state->p25_chan_spac[iden] = ((MAC[4+len_a] & 0x3) << 8) | MAC[5+len_a];
state->p25_base_freq[iden] = (MAC[6+len_a] << 24) | (MAC[7+len_a] << 16) | (MAC[8+len_a] << 8) | (MAC[9+len_a] << 0);
fprintf (stderr, "\n Identifier Update UHF/VHF\n");
fprintf (stderr, " Channel Identifier [%01X] BW [%01X] Transmit Offset [%04X]\n Channel Spacing [%03X] Base Frequency [%08lX] [%09ld]",
state->p25_chan_iden, bw_vu, state->p25_trans_off[iden], state->p25_chan_spac[iden], state->p25_base_freq[iden], state->p25_base_freq[iden] * 5);
}
//identifier update (Non-TDMA 6.2.22) (Non-VHF-UHF) //with signed offset, bit trans_off >> 8; bit number 9
if (MAC[1+len_a] == 0x7D)
{
state->p25_chan_iden = MAC[2+len_a] >> 4;
int iden = state->p25_chan_iden;
state->p25_chan_type[iden] = 1;
int bw = ((MAC[2+len_a] & 0xF) << 5) | ((MAC[3+len_a] & 0xF8) >> 2);
state->p25_trans_off[iden] = (MAC[3+len_a] << 6) | (MAC[4+len_a] >> 2);
state->p25_chan_spac[iden] = ((MAC[4+len_a] & 0x3) << 8) | MAC[5+len_a];
state->p25_base_freq[iden] = (MAC[6+len_a] << 24) | (MAC[7+len_a] << 16) | (MAC[8+len_a] << 8) | (MAC[9+len_a] << 0);
fprintf (stderr, "\n Identifier Update (8.3.1.23)\n");
fprintf (stderr, " Channel Identifier [%01X] BW [%01X] Transmit Offset [%04X]\n Channel Spacing [%03X] Base Frequency [%08lX] [%09ld]",
state->p25_chan_iden, bw, state->p25_trans_off[iden], state->p25_chan_spac[iden], state->p25_base_freq[iden], state->p25_base_freq[iden] * 5);
}
//identifier update for TDMA, Abbreviated
if (MAC[1+len_a] == 0x73)
{
state->p25_chan_iden = MAC[2+len_a] >> 4;
int iden = state->p25_chan_iden;
state->p25_chan_type[iden] = MAC[2+len_a] & 0xF;
state->p25_trans_off[iden] = (MAC[3+len_a] << 6) | (MAC[4+len_a] >> 2);
state->p25_chan_spac[iden] = ((MAC[4+len_a] & 0x3) << 8) | MAC[5+len_a];
state->p25_base_freq[iden] = (MAC[6+len_a] << 24) | (MAC[7+len_a] << 16) | (MAC[8+len_a] << 8) | (MAC[9+len_a] << 0);
fprintf (stderr, "\n Identifier Update for TDMA - Abbreviated\n");
fprintf (stderr, " Channel Identifier [%01X] Channel Type [%01X] Transmit Offset [%04X]\n Channel Spacing [%03X] Base Frequency [%08lX] [%09ld]",
state->p25_chan_iden, state->p25_chan_type[iden], state->p25_trans_off[iden], state->p25_chan_spac[iden], state->p25_base_freq[iden], state->p25_base_freq[iden] * 5);
}
//identifier update for TDMA, Extended
if (MAC[1+len_a] == 0xF3)
{
state->p25_chan_iden = MAC[3+len_a] >> 4;
int iden = state->p25_chan_iden;
state->p25_chan_type[iden] = MAC[3+len_a] & 0xF;
state->p25_trans_off[iden] = (MAC[4+len_a] << 6) | (MAC[5+len_a] >> 2);
state->p25_chan_spac[iden] = ((MAC[5+len_a] & 0x3) << 8) | MAC[6+len_a];
state->p25_base_freq[iden] = (MAC[7+len_a] << 24) | (MAC[8+len_a] << 16) | (MAC[9+len_a] << 8) | (MAC[10+len_a] << 0);
int lwacn = (MAC[11+len_a] << 12) | (MAC[12+len_a] << 4) | ((MAC[13+len_a] & 0xF0) >> 4);
int lsysid = ((MAC[13+len_a] & 0xF) << 8) | MAC[14+len_a];
fprintf (stderr, "\n Identifier Update for TDMA - Extended\n");
fprintf (stderr, " Channel Identifier [%01X] Channel Type [%01X] Transmit Offset [%04X]\n Channel Spacing [%03X] Base Frequency [%08lX] [%09ld]",
state->p25_chan_iden, state->p25_chan_type[iden], state->p25_trans_off[iden], state->p25_chan_spac[iden], state->p25_base_freq[iden], state->p25_base_freq[iden] * 5);
fprintf (stderr, "\n WACN [%04X] SYSID [%04X]", lwacn, lsysid);
}
//Secondary Control Channel Broadcast, Explicit
if (MAC[1+len_a] == 0xE9)
{
int rfssid = MAC[2+len_a];
int siteid = MAC[3+len_a];
int channelt = (MAC[4+len_a] << 8) | MAC[5+len_a];
int channelr = (MAC[6+len_a] << 8) | MAC[7+len_a];
int sysclass = MAC[8+len_a];
if (1 == 1) //state->p2_is_lcch == 1
{
fprintf (stderr, "\n Secondary Control Channel Broadcast - Explicit\n");
fprintf (stderr, " RFSS[%03d] SITE ID [%03X] CHAN-T [%04X] CHAN-R [%04X] SSC [%02X]", rfssid, siteid, channelt, channelr, sysclass);
process_channel_to_freq (opts, state, channelt);
process_channel_to_freq (opts, state, channelr);
}
}
//Secondary Control Channel Broadcast, Implicit
if (MAC[1+len_a] == 0x79)
{
int rfssid = MAC[2+len_a];
int siteid = MAC[3+len_a];
int channel1 = (MAC[4+len_a] << 8) | MAC[5+len_a];
int sysclass1 = MAC[6+len_a];
int channel2 = (MAC[7+len_a] << 8) | MAC[8+len_a];
int sysclass2 = MAC[9+len_a];
if (1 == 1) //state->p2_is_lcch == 1
{
fprintf (stderr, "\n Secondary Control Channel Broadcast - Implicit\n");
fprintf (stderr, " RFSS[%03d] SITE ID [%03X] CHAN1 [%04X] SSC [%02X] CHAN2 [%04X] SSC [%02X]", rfssid, siteid, channel1, sysclass1, channel2, sysclass2);
process_channel_to_freq (opts, state, channel1);
process_channel_to_freq (opts, state, channel2);
}
}
//Group Voice Channel Grant Update - Implicit
if (MAC[1+len_a] == 0x42)
{
int channel1 = (MAC[2+len_a] << 8) | MAC[3+len_a];
int group1 = (MAC[4+len_a] << 8) | MAC[5+len_a];
int channel2 = (MAC[6+len_a] << 8) | MAC[7+len_a];
int group2 = (MAC[8+len_a] << 8) | MAC[9+len_a];
fprintf (stderr, "\n Group Voice Channel Grant Update - Implicit");
fprintf (stderr, "\n Channel 1 [%04X] Group 1 [%d][%04X]", channel1, group1, group1);
if (state->lasttg == group1)
{
state->p25_vc_freq[0] = process_channel_to_freq (opts, state, channel1);
}
else if (state->lasttgR == group1)
{
state->p25_vc_freq[1] = process_channel_to_freq (opts, state, channel1);
}
else process_channel_to_freq (opts, state, channel1);
//only run next channel if not identical to first channel
if (group1 != group2)
{
fprintf (stderr, "\n Channel 2 [%04X] Group 2 [%d][%04X]", channel2, group2, group2);
if (state->lasttg == group2)
{
state->p25_vc_freq[0] = process_channel_to_freq (opts, state, channel2);
}
else if (state->lasttgR == group2)
{
state->p25_vc_freq[1] = process_channel_to_freq (opts, state, channel2);
}
else process_channel_to_freq (opts, state, channel2);
}
}
//Group Voice Channel Grant Update - Explicit
if (MAC[1+len_a] == 0xC3)
{
int svc = MAC[2+len_a];
int channelt = (MAC[3+len_a] << 8) | MAC[4+len_a];
int channelr = (MAC[5+len_a] << 8) | MAC[6+len_a];
int group = (MAC[7+len_a] << 8) | MAC[8+len_a];
fprintf (stderr, "\n Group Voice Channel Grant Update - Explicit");
fprintf (stderr, "\n SVC [%02X] CHAN-T [%04X] CHAN-R [%04X] Group [%d][%04X]", svc, channelt, channelr, group, group);
process_channel_to_freq (opts, state, channelt);
process_channel_to_freq (opts, state, channelr);
if (slot == 0)
{
state->lasttg = group;
}
else state->lasttgR = group;
}
//MFID90 Group Regroup Voice Channel User - Abbreviated
if (MAC[1+len_a] == 0x80 && MAC[2+len_a] == 0x90)
{
int gr = (MAC[4+len_a] << 8) | MAC[5+len_a];
int src = (MAC[6+len_a] << 16) | (MAC[7+len_a] << 8) | MAC[8+len_a];
fprintf (stderr, "\n VCH %d - Super Group %d SRC %d ", slot, gr, src);
fprintf (stderr, "MFID90 Group Regroup Voice");
if (slot == 0)
{
state->lasttg = gr;
if (src != 0) state->lastsrc = src;
}
else
{
state->lasttgR = gr;
if (src != 0) state->lastsrcR = src;
}
}
//MFID90 Group Regroup Voice Channel User - Extended
if (MAC[1+len_a] == 0xA0 && MAC[2+len_a] == 0x90)
{
int gr = (MAC[5+len_a] << 8) | MAC[6+len_a];
int src = (MAC[7+len_a] << 16) | (MAC[8+len_a] << 8) | MAC[9+len_a];
fprintf (stderr, "\n VCH %d - Super Group %d SRC %d ", slot, gr, src);
fprintf (stderr, "MFID90 Group Regroup Voice");
if (slot == 0)
{
state->lasttg = gr;
if (src != 0) state->lastsrc = src;
}
else
{
state->lasttgR = gr;
if (src != 0) state->lastsrcR = src;
}
}
//MFIDA4 Group Regroup Explicit Encryption Command
if (MAC[1+len_a] == 0xB0 && MAC[2+len_a] == 0xA4) //&& MAC[2+len_a] == 0xA4
{
int len_grg = MAC[3+len_a] & 0x3F;
int grg = MAC[4+len_a] >> 5; //3 bits
int ssn = MAC[4+len_a] & 0x1F; //5 bits
fprintf (stderr, "\n MFIDA4 Group Regroup Explicit Encryption Command\n");
//fprintf (stderr, " LEN [%02X] GRG [%02X]\n", len_grg, grg);
if (grg & 0x2) //if grg == wgid //&0x2 according to OP25
{
int sg = (MAC[5+len_a] << 8) | MAC[6+len_a];
int key = (MAC[7+len_a] << 8) | MAC[8+len_a];
int alg = MAC[9+len_a];
int t1 = (MAC[10+len_a] << 8) | MAC[11+len_a];
int t2 = (MAC[12+len_a] << 8) | MAC[13+len_a];
int t3 = (MAC[14+len_a] << 8) | MAC[15+len_a];
int t4 = (MAC[16+len_a] << 8) | MAC[17+len_a];
fprintf (stderr, " SG [%05d] KEY [%02X] ALG [%02X]\n ", sg, key, alg);
int a = 0;
int wgid = 0;
//worried a bad decode may cause an oob array crash on this one
for (int i = 10; i < len_grg;)
{
//failsafe to prevent oob array
if ( (i + len_a) > 20)
{
goto END_PDU;
}
wgid = (MAC[10+len_a+a] << 8) | MAC[11+len_a+a];
fprintf (stderr, "WGID [%02X][%05d] ", wgid, wgid);
a = a + 2;
i = i + 2;
}
}
else //if grg == wuid
{
int sg = (MAC[5+len_a] << 8) | MAC[6+len_a];
int key = (MAC[7+len_a] << 8) | MAC[8+len_a];
int t1 = (MAC[9+len_a] << 16) | (MAC[10+len_a] << 8) | MAC[11+len_a];
int t2 = (MAC[12+len_a] << 16) | (MAC[13+len_a] << 8) | MAC[14+len_a];
int t3 = (MAC[15+len_a] << 16) | (MAC[16+len_a] << 8) | MAC[17+len_a];
fprintf (stderr, " SG [%02X] KEY [%02X]", sg, key);
fprintf (stderr, " U1 [%02X] U2 [%02X] U3 [%02X] ", t1, t2, t3);
}
}
//1 or 21, group voice channel message, abb and ext
if (MAC[1+len_a] == 0x1 || MAC[1+len_a] == 0x21)
{
int svc = MAC[2+len_a];
int gr = (MAC[3+len_a] << 8) | MAC[4+len_a];
int src = (MAC[5+len_a] << 16) | (MAC[6+len_a] << 8) | MAC[7+len_a];
fprintf (stderr, "\n VCH %d - TG %d SRC %d ", slot, gr, src);
fprintf (stderr, "Group Voice");
if (slot == 0)
{
state->lasttg = gr;
if (src != 0) state->lastsrc = src;
}
else
{
state->lasttgR = gr;
if (src != 0) state->lastsrcR = src;
}
}
//1 or 21, group voice channel message, abb and ext
if (MAC[1+len_a] == 0x2 || MAC[1+len_a] == 0x22)
{
int svc = MAC[2+len_a];
int gr = (MAC[3+len_a] << 16) | (MAC[4+len_a] << 8) | MAC[5+len_a];
int src = (MAC[6+len_a] << 16) | (MAC[7+len_a] << 8) | MAC[8+len_a];
fprintf (stderr, "\n VCH %d - TG %d SRC %d ", slot, gr, src);
fprintf (stderr, "Unit to Unit Voice");
if (slot == 0)
{
state->lasttg = gr;
if (src != 0) state->lastsrc = src;
}
else
{
state->lasttgR = gr;
if (src != 0) state->lastsrcR = src;
}
}
//network status broadcast, abbreviated
if (MAC[1+len_a] == 0x7B)
{
int lra = MAC[2+len_a];
int lwacn = (MAC[3+len_a] << 12) | (MAC[4+len_a] << 4) | ((MAC[5+len_a] & 0xF0) >> 4);
int lsysid = ((MAC[5+len_a] & 0xF) << 8) | MAC[6+len_a];
int channel = (MAC[7+len_a] << 8) | MAC[8+len_a];
int sysclass = MAC[9+len_a];
int lcolorcode = ((MAC[10+len_a] & 0xF) << 8) | MAC[11+len_a];
fprintf (stderr, "\n Network Status Broadcast - Abbreviated \n");
fprintf (stderr, " LRA [%02X] WACN [%05X] SYSID [%03X] NAC [%03X] CHAN-T [%04X]", lra, lwacn, lsysid, lcolorcode, channel);
state->p25_cc_freq = process_channel_to_freq (opts, state, channel);
if (state->p2_hardset == 0 ) //state->p2_is_lcch == 1 shim until CRC is working, prevent bogus data
{
state->p2_wacn = lwacn;
state->p2_sysid = lsysid;
state->p2_cc = lcolorcode;
}
}
//network status broadcast, extended
if (MAC[1+len_a] == 0xFB)
{
int lra = MAC[2+len_a];
int lwacn = (MAC[3+len_a] << 12) | (MAC[4+len_a] << 4) | ((MAC[5+len_a] & 0xF0) >> 4);
int lsysid = ((MAC[5+len_a] & 0xF) << 8) | MAC[6+len_a];
int channelt = (MAC[7+len_a] << 8) | MAC[8+len_a];
int channelr = (MAC[9+len_a] << 8) | MAC[10+len_a];
int sysclass = MAC[9+len_a];
int lcolorcode = ((MAC[12+len_a] & 0xF) << 8) | MAC[13+len_a];
fprintf (stderr, "\n Network Status Broadcast - Extended \n");
fprintf (stderr, " LRA [%02X] WACN [%05X] SYSID [%03X] NAC [%03X] CHAN-T [%04X] CHAN-R [%04X]", lra, lwacn, lsysid, lcolorcode, channelt, channelr);
process_channel_to_freq (opts, state, channelt);
process_channel_to_freq (opts, state, channelr);
if (state->p2_hardset == 0 ) //state->p2_is_lcch == 1 shim until CRC is working, prevent bogus data
{
state->p2_wacn = lwacn;
state->p2_sysid = lsysid;
state->p2_cc = lcolorcode;
}
}
//Adjacent Status Broadcast, abbreviated
if (MAC[1+len_a] == 0x7C)
{
int lra = MAC[2+len_a];
int lsysid = ((MAC[3+len_a] & 0xF) << 8) | MAC[4+len_a];
int rfssid = MAC[5+len_a];
int siteid = MAC[6+len_a];
int channelt = (MAC[7+len_a] << 8) | MAC[8+len_a];
int sysclass = MAC[9+len_a];
if (1 == 1) //state->p2_is_lcch == 1
{
fprintf (stderr, "\n Adjacent Status Broadcast - Abbreviated\n");
fprintf (stderr, " LRA [%02X] RFSS[%03d] SYSID [%03X] CHAN-T [%04X] SSC [%02X]", lra, rfssid, lsysid, channelt, sysclass);
process_channel_to_freq (opts, state, channelt);
}
}
//Adjacent Status Broadcast, extended
if (MAC[1+len_a] == 0xFC)
{
int lra = MAC[2+len_a];
int lsysid = ((MAC[3+len_a] & 0xF) << 8) | MAC[4+len_a];
int rfssid = MAC[5+len_a];
int siteid = MAC[6+len_a];
int channelt = (MAC[7+len_a] << 8) | MAC[8+len_a];
int channelr = (MAC[9+len_a] << 8) | MAC[10+len_a];
int sysclass = MAC[9+len_a];
if (1 == 1) //state->p2_is_lcch == 1
{
fprintf (stderr, "\n Adjacent Status Broadcast - Extended\n");
fprintf (stderr, " LRA [%02X] RFSS[%03d] SYSID [%03X] CHAN-T [%04X] CHAN-R [%04X] SSC [%02X]", lra, rfssid, lsysid, channelt, channelr, sysclass);
process_channel_to_freq (opts, state, channelt);
process_channel_to_freq (opts, state, channelr);
}
}
if ( (len_b + len_c) < 24 && len_c != 0)
{
len_a = len_b;
}
else
{
goto END_PDU;
}
}
END_PDU:
state->p2_is_lcch = 0;
//debug printing
if (opts->payload == 1 && MAC[1] != 0) //print only if not a null type //&& MAC[1] != 0 //&& MAC[2] != 0
{
fprintf (stderr, "%s", KCYN);
fprintf (stderr, "\n P25 PDU Payload\n ");
for (int i = 0; i < 24; i++)
{
fprintf (stderr, "[%02llX]", MAC[i]);
if (i == 11) fprintf (stderr, "\n ");
}
fprintf (stderr, "%s", KNRM);
}
}
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