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// $Id: rr_decode.cc,v 1.1.1.1 2007-06-01 04:26:57 jl Exp $
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static char *pd_string(unsigned char pd) {
switch(pd) {
case 0:
return "group call control";
case 1:
return "broadcast call control";
case 2:
return "reserved (PDSS1 in earlier phases)";
case 3:
return "call control; call related SS messages";
case 4:
return "GPRS Transparent Transport Protocol (GTTP)";
case 5:
return "mobility management messages";
case 6:
return "radio resources management messages";
case 8:
return "GPRS mobility management messages";
case 9:
return "SMS messages";
case 10:
return "GPRS session management messages";
case 11:
return "non-call related SS messages";
case 12:
return "location services";
case 14:
return "reserved for extension of the PD";
case 15:
return "reserved for tests procedures";
default:
return "unknown PD";
}
}
static char *message_type_rrm_string(unsigned char mt) {
switch(mt) {
case 0x3c:
return "channel establishment message: RR "
"initialization request";
case 0x3b:
return "channel establishment message: aditional "
"assignment";
case 0x3f:
return "channel establishment message: immediate "
"assignment";
case 0x39:
return "channel establishment message: immediate "
"assignment extended";
case 0x3a:
return "channel establishment message: immediate "
"assignment reject";
case 0x35:
return "ciphering message: ciphering mode command";
case 0x32:
return "ciphering message: ciphering mode complete";
case 0x30:
return "configuration change message: configuration "
"change command";
case 0x31:
return "configuration change message: configuration "
"change acknowledgement";
case 0x33:
return "configuration change message: configuration "
"change reject";
case 0x2e:
return "handover message: assignment command";
case 0x29:
return "handover message: assignment complete";
case 0x2f:
return "handover message: assignment failure";
case 0x2b:
return "handover message: handover command";
case 0x2c:
return "handover message: handover complete";
case 0x28:
return "handover message: handover failure";
case 0x2d:
return "handover message: physical information";
case 0x08:
return "RR-cell change order";
case 0x23:
return "PDCH assignment command";
case 0x0d:
return "channel release message: channel release";
case 0x0a:
return "channel release message: partial release";
case 0x0f:
return "channel release message: partial release "
"complete";
case 0x21:
return "paging and notification message: paging "
"request type 1";
case 0x22:
return "paging and notification message: paging "
"request type 2";
case 0x24:
return "paging and notification message: paging "
"request type 3";
case 0x27:
return "paging and notification message: paging "
"response";
case 0x20:
return "paging and notification message: "
"notification / NCH";
case 0x25:
return "paging and notification message: "
"notification / FACCH";
case 0x26:
return "paging and notification message: "
"notification response";
case 0x0b:
return "reserved";
case 0x18:
return "system information message: type 8";
case 0x19:
return "system information message: type 1";
case 0x1a:
return "system information message: type 2";
case 0x1b:
return "system information message: type 3";
case 0x1c:
return "system information message: type 4";
case 0x1d:
return "system information message: type 5";
case 0x1e:
return "system information message: type 6";
case 0x1f:
return "system information message: type 7";
case 0x02:
return "system information message: type 2bis";
case 0x03:
return "system information message: type 2ter";
case 0x05:
return "system information message: type 5bis";
case 0x06:
return "system information message: type 5ter";
case 0x04:
return "system information message: type 9";
case 0x00:
return "system information message: type 13";
case 0x3d:
return "system information message: type 16";
case 0x3e:
return "system information message: type 17";
case 0x10:
return "miscellaneous message: channel mode modify";
case 0x12:
return "miscellaneous message: RR status";
case 0x17:
return "miscellaneous message: channel mode modify "
"acknowledge";
case 0x14:
return "miscellaneous message: frequency redefinition";
case 0x15:
return "miscellaneous message: measurement report";
case 0x16:
return "miscellaneous message: classmark change";
case 0x13:
return "miscellaneous message: classmark enquiry";
case 0x36:
return "miscellaneous message: extended measurement "
"report";
case 0x37:
return "miscellaneous message: extended measurement "
"order";
case 0x34:
return "miscellaneous message: GPRS suspension request";
case 0x09:
return "VGCS uplink control message: uplink grant";
case 0x0e:
return "VGCS uplink control message: uplink release";
case 0x0c:
return "VGCS uplink control message: uplink free";
case 0x2a:
return "VGCS uplink control message: uplink busy";
case 0x11:
return "VGCS uplink control message: talker indication";
case 0x38:
return "application message: application information";
default:
return "unknown radio resource management message "
"type";
}
}
void display_l3(unsigned char *buf, unsigned int buflen) {
printf("(%d) PD: %s: (%2.2x) %s\n", buflen, pd_string(buf[0] & 0xf),
buf[1], message_type_rrm_string(buf[1]));
}
void display_ns_l3(unsigned char *data, unsigned int datalen) {
int len;
// bit 1 == 1, bit 2 == 0
if((data[0] & 3) != 1) {
fprintf(stderr, "error: display_ns_l3: pseudo-length reserved "
"bits bad (%2.2x)\n", data[0] & 3);
return;
}
len = data[0] >> 2;
if(datalen < len) {
fprintf(stderr, "error: display_ns_l3: bad data length "
"(%d < %d)\n", datalen, len);
return;
}
printf("L3 length: %d\n", len);
display_l3(data + 1, datalen - 1);
}
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