diff options
Diffstat (limited to 'gssm/src/lib/rr_decode.cc')
| -rw-r--r-- | gssm/src/lib/rr_decode.cc | 236 |
1 files changed, 236 insertions, 0 deletions
diff --git a/gssm/src/lib/rr_decode.cc b/gssm/src/lib/rr_decode.cc new file mode 100644 index 0000000..312c883 --- /dev/null +++ b/gssm/src/lib/rr_decode.cc @@ -0,0 +1,236 @@ +// $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); +} |