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wireshark/epan/dissectors/packet-rsl.c
Vadim Yanitskiy b93e8234f6 GSM A-bis/RSL: dissect and show RFN using parse_reduced_frame_number() 
3GPP came up with a special encoding of TDMA frame number, which reduces
the amount of bits needed to carry it from 32 to 16.  This encoding is
not only employed on the radio interface (GSM RR), but also on the
A-bis/RSL interface which is used between BTS and BSC nodes.

From the user perspective, parsed RFN value is a lot more meaningful
than the T1/T2/T3 variables used on the wire.  The GSM RR dissector
does show parsed RFN value together with these variables, while the RSL
dissector does not.  Let's show it in the RSL dissector too.
2022-10-17 19:45:15 +00:00

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/* packet-rsl.c
* Routines for Radio Signalling Link (RSL) dissection.
*
* Copyright 2007, 2011, Anders Broman <anders.broman@ericsson.com>
* Copyright 2009-2011, Harald Welte <laforge@gnumonks.org>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* Copied from packet-cops.c
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* REF: 3GPP TS 48.058 version 6.1.0 Release 6
* http://www.3gpp.org/ftp/Specs/html-info/48058.htm
*
*/
#include "config.h"
#include <epan/packet.h>
#include "packet-gsm_a_common.h"
#include "lapd_sapi.h"
#include <epan/prefs.h>
#include <epan/expert.h>
#include <epan/conversation.h>
#include "packet-rtp.h"
#include "packet-rtcp.h"
void proto_register_rsl(void);
void proto_reg_handoff_rsl(void);
guint16 parse_reduced_frame_number(tvbuff_t *tvb, const gint offset);
/* Initialize the protocol and registered fields */
static int proto_rsl = -1;
static int hf_rsl_msg_type = -1;
static int hf_rsl_T_bit = -1;
static int hf_rsl_msg_dsc = -1;
static int hf_rsl_ie_id = -1;
static int hf_rsl_ie_length = -1;
static int hf_rsl_ch_no_Cbits = -1;
static int hf_rsl_ch_no_TN = -1;
static int hf_rsl_acc_delay = -1;
static int hf_rsl_rach_slot_cnt = -1;
static int hf_rsl_rach_busy_cnt = -1;
static int hf_rsl_rach_acc_cnt = -1;
static int hf_rsl_req_ref_ra = -1;
static int hf_rsl_req_ref_ra_est_cause = -1;
static int hf_rsl_req_ref_T1prim = -1;
static int hf_rsl_req_ref_T3 = -1;
static int hf_rsl_req_ref_T2 = -1;
static int hf_rsl_req_ref_rfn = -1;
static int hf_rsl_timing_adv = -1;
static int hf_rsl_ho_ref = -1;
static int hf_rsl_l1inf_power_lev = -1;
static int hf_rsl_l1inf_fpc = -1;
static int hf_rsl_l1inf_srr = -1;
static int hf_rsl_ms_power_lev = -1;
static int hf_rsl_ms_fpc = -1;
static int hf_rsl_act_timing_adv = -1;
static int hf_rsl_phy_ctx = -1;
static int hf_rsl_na = -1;
static int hf_rsl_ch_type = -1;
static int hf_rsl_prio = -1;
static int hf_rsl_sapi = -1;
static int hf_rsl_rbit = -1;
static int hf_rsl_a3a2 = -1;
static int hf_rsl_a1_0 = -1;
static int hf_rsl_a1_1 = -1;
static int hf_rsl_a1_2 = -1;
static int hf_rsl_epc_mode = -1;
static int hf_rsl_bs_fpc_epc_mode = -1;
static int hf_rsl_bs_power = -1;
static int hf_rsl_cm_dtxd = -1;
static int hf_rsl_cm_dtxu = -1;
static int hf_rsl_speech_or_data = -1;
static int hf_rsl_ch_rate_and_type = -1;
static int hf_rsl_speech_coding_alg = -1;
static int hf_rsl_t_nt_bit = -1;
static int hf_rsl_ra_if_data_rte = -1;
static int hf_rsl_data_rte = -1;
static int hf_rsl_alg_id = -1;
static int hf_rsl_key = -1;
static int hf_rsl_cause = -1;
static int hf_rsl_rel_mode = -1;
static int hf_rsl_interf_band = -1;
static int hf_rsl_interf_band_reserved = -1;
static int hf_rsl_meas_res_no = -1;
static int hf_rsl_extension_bit = -1;
static int hf_rsl_dtxd = -1;
static int hf_rsl_rxlev_full_up = -1;
static int hf_rsl_rxlev_sub_up = -1;
static int hf_rsl_rxqual_full_up = -1;
static int hf_rsl_rxqual_sub_up = -1;
static int hf_rsl_class = -1;
static int hf_rsl_cause_value = -1;
static int hf_rsl_paging_grp = -1;
static int hf_rsl_paging_load = -1;
static int hf_rsl_sys_info_type = -1;
static int hf_rsl_timing_offset = -1;
static int hf_rsl_ch_needed = -1;
static int hf_rsl_cbch_load_type = -1;
static int hf_rsl_msg_slt_cnt = -1;
static int hf_rsl_ch_ind = -1;
static int hf_rsl_command = -1;
static int hf_rsl_emlpp_prio = -1;
static int hf_rsl_rtd = -1;
static int hf_rsl_delay_ind = -1;
static int hf_rsl_tfo = -1;
static int hf_rsl_speech_mode_s = -1;
static int hf_rsl_speech_mode_m = -1;
static int hf_rsl_conn_id = -1;
static int hf_rsl_rtp_payload = -1;
static int hf_rsl_rtp_csd_fmt_d = -1;
static int hf_rsl_rtp_csd_fmt_ir = -1;
static int hf_rsl_local_port = -1;
static int hf_rsl_remote_port = -1;
static int hf_rsl_local_ip = -1;
static int hf_rsl_remote_ip = -1;
static int hf_rsl_cstat_tx_pkts = -1;
static int hf_rsl_cstat_tx_octs = -1;
static int hf_rsl_cstat_rx_pkts = -1;
static int hf_rsl_cstat_rx_octs = -1;
static int hf_rsl_cstat_lost_pkts = -1;
static int hf_rsl_cstat_ia_jitter = -1;
static int hf_rsl_cstat_avg_tx_dly = -1;
/* Generated from convert_proto_tree_add_text.pl */
static int hf_rsl_channel_description_tag = -1;
static int hf_rsl_mobile_allocation_tag = -1;
static int hf_rsl_mobile_allocation_len = -1;
static int hf_rsl_no_resources_required = -1;
static int hf_rsl_llsdu_ccch = -1;
static int hf_rsl_llsdu_sacch = -1;
static int hf_rsl_llsdu = -1;
static int hf_rsl_rach_supplementary_information = -1;
static int hf_rsl_full_immediate_assign_info_field = -1;
static int hf_rsl_layer_3_message = -1;
static int hf_rsl_descriptive_group_or_broadcast_call_reference = -1;
static int hf_rsl_group_channel_description = -1;
static int hf_rsl_uic = -1;
static int hf_rsl_codec_list = -1;
static int hf_rsl_cb_cmd_type = -1;
static int hf_rsl_cb_def_bcast = -1;
static int hf_rsl_cb_last_block = -1;
static int hf_rsl_etws_pn = -1;
/* Encapsulating paging messages into a packet REF: EP2192796 - proprietor Huawei */
static int hf_rsl_paging_spare = -1;
static int hf_rsl_paging_msg_no = -1;
static int hf_rsl_paging_package_ch_no = -1;
static int hf_rsl_paging_package_ch_needed = -1;
static int hf_rsl_paging_emlpp_prio = -1;
static int hf_rsl_paging_type = -1;
static int hf_rsl_paging_group_cs = -1;
static int hf_rsl_paging_group_empty_package = -1;
static int hf_rsl_paging_group_ps_spare = -1;
/* Physical Context dissection */
static int hf_rsl_phy_ctx_ie_id = -1;
static int hf_rsl_phy_ctx_ext_rand_access = -1;
static int hf_rsl_phy_ctx_ab_rx_lvl = -1;
static int hf_rsl_phy_ctx_ab_err_bits = -1;
static int hf_rsl_phy_ctx_rx_lvl_ext = -1;
/* Osmocom specific IEs */
static int hf_rsl_osmo_rep_acch_rxqual = -1;
static int hf_rsl_osmo_rep_acch_ul_sacch = -1;
static int hf_rsl_osmo_rep_acch_dl_sacch = -1;
static int hf_rsl_osmo_rep_acch_dl_facch_all = -1;
static int hf_rsl_osmo_rep_acch_dl_facch_cmd = -1;
static int hf_rsl_osmo_top_acch_val = -1;
static int hf_rsl_osmo_top_acch_sacch = -1;
static int hf_rsl_osmo_top_acch_facch = -1;
static int hf_rsl_osmo_top_acch_rxqual = -1;
static int hf_rsl_osmo_tsc_set = -1;
static int hf_rsl_osmo_tsc_val = -1;
static int hf_rsl_osmo_osmux_cid = -1;
/* Initialize the subtree pointers */
static int ett_rsl = -1;
static int ett_ie_link_id = -1;
static int ett_ie_act_type = -1;
static int ett_ie_bs_power = -1;
static int ett_ie_bs_power_params = -1;
static int ett_ie_ch_id = -1;
static int ett_ie_ch_mode = -1;
static int ett_ie_enc_inf = -1;
static int ett_ie_ch_no = -1;
static int ett_ie_frame_no = -1;
static int ett_ie_ho_ref = -1;
static int ett_ie_l1_inf = -1;
static int ett_ie_L3_inf = -1;
static int ett_ie_ms_id = -1;
static int ett_ie_ms_pow = -1;
static int ett_ie_ms_pow_params = -1;
static int ett_ie_phy_ctx = -1;
static int ett_ie_paging_grp = -1;
static int ett_ie_paging_load = -1;
static int ett_ie_access_delay = -1;
static int ett_ie_rach_load = -1;
static int ett_ie_req_ref = -1;
static int ett_ie_req_ref_ra = -1;
static int ett_ie_rel_mode = -1;
static int ett_ie_resource_inf = -1;
static int ett_ie_rlm_cause = -1;
static int ett_ie_staring_time = -1;
static int ett_ie_timing_adv = -1;
static int ett_ie_uplink_meas = -1;
static int ett_ie_full_imm_ass_inf = -1;
static int ett_ie_smscb_inf = -1;
static int ett_ie_ms_timing_offset = -1;
static int ett_ie_err_msg = -1;
static int ett_ie_full_bcch_inf = -1;
static int ett_ie_ch_needed = -1;
static int ett_ie_cb_cmd_type = -1;
static int ett_ie_smscb_mess = -1;
static int ett_ie_cbch_load_inf = -1;
static int ett_ie_smscb_ch_ind = -1;
static int ett_ie_grp_call_ref = -1;
static int ett_ie_ch_desc = -1;
static int ett_ie_nch_drx = -1;
static int ett_ie_cmd_ind = -1;
static int ett_ie_emlpp_prio = -1;
static int ett_ie_uic = -1;
static int ett_ie_main_ch_ref = -1;
static int ett_ie_multirate_conf = -1;
static int ett_ie_multirate_cntrl = -1;
static int ett_ie_sup_codec_types = -1;
static int ett_ie_codec_conf = -1;
static int ett_ie_rtd = -1;
static int ett_ie_tfo_status = -1;
static int ett_ie_llp_apdu = -1;
static int ett_ie_tfo_transp_cont = -1;
static int ett_ie_cause = -1;
static int ett_ie_meas_res_no = -1;
static int ett_ie_message_id = -1;
static int ett_ie_sys_info_type = -1;
static int ett_ie_speech_mode = -1;
static int ett_ie_conn_id = -1;
static int ett_ie_remote_ip = -1;
static int ett_ie_remote_port = -1;
static int ett_ie_local_port = -1;
static int ett_ie_local_ip = -1;
static int ett_ie_rtp_payload = -1;
static int ett_ie_etws_pn = -1;
static int ett_ie_osmo_rep_acch_cap = -1;
static int ett_ie_osmo_top_acch_cap = -1;
static int ett_ie_osmo_training_seq = -1;
/* Encapsulating paging messages into a packet REF: EP2192796 - proprietor Huawei */
static int ett_ie_paging_package = -1;
static int ett_ie_paging_package_number = -1;
static int ett_ie_paging_package_info = -1;
static int ett_ie_paging_package_ch_a_emlpp = -1;
static int ett_ie_paging_group_paras = -1;
/* Physical Context dissection */
static int ett_phy_ctx_ie = -1;
static int ett_phy_ctx_ie_ext_rand_access = -1;
static int ett_phy_ctx_ab_rx_lvl_err_bits = -1;
static int ett_phy_ctx_rxlvl_ext = -1;
/* Generated from convert_proto_tree_add_text.pl */
static expert_field ei_rsl_speech_or_data_indicator = EI_INIT;
static expert_field ei_rsl_facility_information_element_3gpp_ts_44071 = EI_INIT;
static expert_field ei_rsl_embedded_message_tfo_configuration = EI_INIT;
static expert_field ei_rsl_mobile_allocation_deprecated = EI_INIT;
static proto_tree *top_tree;
static dissector_handle_t rsl_handle;
static dissector_handle_t gsm_cbch_handle;
static dissector_handle_t gsm_cbs_handle;
static dissector_handle_t gsm_a_ccch_handle;
static dissector_handle_t gsm_a_dtap_handle;
static dissector_handle_t gsm_a_sacch_handle;
/* Decode things as nanoBTS traces */
static gboolean global_rsl_use_nano_bts = FALSE;
/* Decode Osmocom specific messages and IEs */
static gboolean global_rsl_use_osmo_bts = FALSE;
/* Decode things in Physical Context Information field. */
static gboolean global_rsl_dissect_phy_ctx_inf = TRUE;
/* Forward declarations */
static int dissct_rsl_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset);
static const true_false_string rsl_t_bit_vals = {
"Considered transparent by BTS",
"Not considered transparent by BTS"
};
static const true_false_string rsl_na_vals = {
"Not Applicable",
"Applicable"
};
static const true_false_string rsl_extension_bit_value = {
"Extension",
"No Extension"
};
/*
* 9.1 Message discriminator
*/
/* Radio link Layer Management Messages */
static const value_string rsl_msg_disc_vals[] = {
{ 0x00, "Reserved" },
{ 0x01, "Radio Link Layer Management messages" },
{ 0x04, "Dedicated Channel Management messages" },
{ 0x06, "Common Channel Management messages" },
{ 0x08, "TRX Management messages" },
{ 0x16, "Location Services messages" },
{ 0x3f, "ip.access Vendor Specific messages" },
{ 0x55, "HUAWEI Paging Extension" },
{ 0, NULL }
};
#define RSL_MSGDISC_IPACCESS 0x3f
/*
* 9.2 MESSAGE TYPE
*/
/* Radio link Layer Management Messages */
#define RSL_MSG_TYPE_DATA_REQ 1 /* 0x01 */
#define RSL_MSG_TYPE_DATA_IND 2 /* 0x02 */
#define RSL_MSG_TYPE_ERROR_IND 3 /* 0x03 */
#define RSL_MSG_TYPE_EST_REQ 4 /* 0x04 */
#define RSL_MSG_TYPE_EST_CONF 5 /* 0x05 */
#define RSL_MSG_EST_IND 6 /* 0x06 */
#define RSL_MSG_REL_REQ 7 /* 0x07 */
#define RSL_MSG_REL_CONF 8 /* 0x08 */
#define RSL_MSG_REL_IND 9 /* 0x09 */
#define RSL_MSG_UNIT_DATA_REQ 10 /* 0x0a */
#define RSL_MSG_UNIT_DATA_IND 11 /* 0x0b */
/* Common Channel Management messages */
#define RSL_MSG_BCCH_INFO 17 /* 0x11 */
#define RSL_MSG_CCCH_LOAD_IND 18 /* 0x12 */
#define RSL_MSG_CHANRQD 19 /* 0x13 */
#define RSL_MSG_DELETE_IND 20 /* 0x14 */
#define RSL_MSG_PAGING_CMD 21 /* 0x15 */
#define RSL_MSG_IMM_ASS_CMD 22 /* 0x16 */
#define RSL_MSG_SMS_BC_REQ 23 /* 0x17 8.5.7 */
/* Encapsulating paging messages into a packet REF: EP2192796 - proprietor Huawei */
#define RSL_MSG_TYPE_PAGING 24 /* 0x18 */
/* TRX Management messages */
#define RSL_MSG_RF_RES_IND 25 /* 8.6.1 */
#define RSL_MSG_SACCH_FILL 26 /* 8.6.2 */
#define RSL_MSG_OVERLOAD 27 /* 8.6.3 */
#define RSL_MSG_ERROR_REPORT 28 /* 8.6.4 */
#define RSL_MSG_SMS_BC_CMD 29 /* 8.5.8 */
#define RSL_MSG_CBCH_LOAD_IND 30 /* 8.5.9 */
#define RSL_MSG_NOT_CMD 31 /* 8.5.10 */
/* 0 0 1 - - - - - Dedicated Channel Management messages: */
#define RSL_MSG_CHAN_ACTIV 33
#define RSL_MSG_CHAN_ACTIV_ACK 34
#define RSL_MSG_CHAN_ACTIV_N_ACK 35
#define RSL_MSG_CONN_FAIL 36
#define RSL_MSG_DEACTIVATE_SACCH 37
#define RSL_MSG_ENCR_CMD 38 /* 8.4.6 */
#define RSL_MSG_HANDODET 39 /* 8.4.7 */
#define RSL_MSG_MEAS_RES 40 /* 8.4.8 */
#define RSL_MSG_MODE_MODIFY_REQ 41 /* 8.4.9 */
#define RSL_MSG_MODE_MODIFY_ACK 42 /* 8.4.10 */
#define RSL_MSG_MODE_MODIFY_NACK 43 /* 8.4.11 */
#define RSL_MSG_PHY_CONTEXT_REQ 44 /* 8.4.12 */
#define RSL_MSG_PHY_CONTEXT_CONF 45 /* 8.4.13 */
#define RSL_MSG_RF_CHAN_REL 46 /* 8.4.14 */
#define RSL_MSG_MS_POWER_CONTROL 47 /* 8.4.15 */
#define RSL_MSG_BS_POWER_CONTROL 48 /* 8.4.16 */
#define RSL_MSG_PREPROC_CONFIG 49 /* 8.4.17 */
#define RSL_MSG_PREPROC_MEAS_RES 50 /* 8.4.18 */
#define RSL_MSG_RF_CHAN_REL_ACK 51 /* 8.4.19 */
#define RSL_MSG_SACCH_INFO_MODIFY 52 /* 8.4.20 */
#define RSL_MSG_TALKER_DET 53 /* 8.4.21 */
#define RSL_MSG_LISTENER_DET 54 /* 8.4.22 */
#define RSL_MSG_REMOTE_CODEC_CONF_REP 55 /* 8.4.23 */
#define RSL_MSG_R_T_D_REP 56 /* 8.4.24 */
#define RSL_MSG_PRE_HANDO_NOTIF 57 /* 8.4.25 */
#define RSL_MSG_MR_CODEC_MOD_REQ 58 /* 8.4.26 */
#define RSL_MSG_MR_CODEC_MOD_ACK 59 /* 8.4.27 */
#define RSL_MSG_MR_CODEC_MOD_NACK 60 /* 8.4.28 */
#define RSL_MSG_MR_CODEC_MOD_PER 61 /* 8.4.29 */
#define RSL_MSG_TFO_REP 62 /* 8.4.30 */
#define RSL_MSG_TFO_MOD_REQ 63 /* 8.4.31 */
/* 0 1 - - - - - - Location Services messages: */
#define RSL_MSG_LOC_INF 65 /* 8.7.1 */
/* Vendor-Specific messages of ip.access nanoBTS. There is no public documentation
* about those extensions, all information in this dissector is based on lawful
* protocol reverse enginering by Harald Welte <laforge@gnumonks.org> */
#define RSL_MSG_TYPE_IPAC_MEAS_PP_DEF 0x60
#define RSL_MSG_TYPE_IPAC_HO_CAND_INQ 0x61
#define RSL_MSG_TYPE_IPAC_HO_CAND_RESP 0x62
#define RSL_MSG_TYPE_IPAC_PDCH_ACT 0x48
#define RSL_MSG_TYPE_IPAC_PDCH_ACT_ACK 0x49
#define RSL_MSG_TYPE_IPAC_PDCH_ACT_NACK 0x4a
#define RSL_MSG_TYPE_IPAC_PDCH_DEACT 0x4b
#define RSL_MSG_TYPE_IPAC_PDCH_DEACT_ACK 0x4c
#define RSL_MSG_TYPE_IPAC_PDCH_DEACT_NACK 0x4d
#define RSL_MSG_TYPE_IPAC_CRCX 0x70
#define RSL_MSG_TYPE_IPAC_CRCX_ACK 0x71
#define RSL_MSG_TYPE_IPAC_CRCX_NACK 0x72
#define RSL_MSG_TYPE_IPAC_MDCX 0x73
#define RSL_MSG_TYPE_IPAC_MDCX_ACK 0x74
#define RSL_MSG_TYPE_IPAC_MDCX_NACK 0x75
#define RSL_MSG_TYPE_IPAC_DLCX_IND 0x76
#define RSL_MSG_TYPE_IPAC_DLCX 0x77
#define RSL_MSG_TYPE_IPAC_DLCX_ACK 0x78
#define RSL_MSG_TYPE_IPAC_DLCX_NACK 0x79
#define RSL_MSG_TYPE_OSMO_ETWS_CMD 0x7f
#define RSL_IE_IPAC_SRTP_CONFIG 0xe0
#define RSL_IE_IPAC_PROXY_UDP 0xe1
#define RSL_IE_IPAC_BSCMPL_TOUT 0xe2
#define RSL_IE_IPAC_REMOTE_IP 0xf0
#define RSL_IE_IPAC_REMOTE_PORT 0xf1
#define RSL_IE_IPAC_RTP_PAYLOAD 0xf2
#define RSL_IE_IPAC_LOCAL_PORT 0xf3
#define RSL_IE_IPAC_SPEECH_MODE 0xf4
#define RSL_IE_IPAC_LOCAL_IP 0xf5
#define RSL_IE_IPAC_CONN_STAT 0xf6
#define RSL_IE_IPAC_HO_C_PARMS 0xf7
#define RSL_IE_IPAC_CONN_ID 0xf8
#define RSL_IE_IPAC_RTP_CSD_FMT 0xf9
#define RSL_IE_IPAC_RTP_JIT_BUF 0xfa
#define RSL_IE_IPAC_RTP_COMPR 0xfb
#define RSL_IE_IPAC_RTP_PAYLOAD2 0xfc
#define RSL_IE_IPAC_RTP_MPLEX 0xfd
#define RSL_IE_IPAC_RTP_MPLEX_ID 0xfe
/* Osmocom specific RSL IEs */
#define RSL_IE_OSMO_REP_ACCH_CAP 0x60
#define RSL_IE_OSMO_TRAINING_SEQUENCE 0x61
#define RSL_IE_OSMO_TOP_ACCH_CAP 0x62
#define RSL_IE_OSMO_OSMUX_CID 0x63
static const value_string rsl_msg_type_vals[] = {
/* 0 0 0 0 - - - - Radio Link Layer Management messages: */
/* 0x01 */ { RSL_MSG_TYPE_DATA_REQ, "DATA REQuest" }, /* 8.3.1 */
/* 0x02 */ { RSL_MSG_TYPE_DATA_IND, "DATA INDication" }, /* 8.3.2 */
/* 0x03 */ { RSL_MSG_TYPE_ERROR_IND, "ERROR INDication" }, /* 8.3.3 */
/* 0x04 */ { RSL_MSG_TYPE_EST_REQ, "ESTablish REQuest" }, /* 8.3.4 */
/* 0x05 */ { RSL_MSG_TYPE_EST_CONF, "ESTablish CONFirm" }, /* 8.3.5 */
/* 0x06 */ { RSL_MSG_EST_IND, "ESTablish INDication" }, /* 8.3.6 */
/* 0x07 */ { RSL_MSG_REL_REQ, "RELease REQuest" }, /* 8.3.7 */
/* 0x08 */ { RSL_MSG_REL_CONF, "RELease CONFirm" }, /* 8.3.8 */
/* 0x09 */ { RSL_MSG_REL_IND, "RELease INDication" }, /* 8.3.9 */
/* 0x0a */ { RSL_MSG_UNIT_DATA_REQ, "UNIT DATA REQuest" }, /* 8.3.10 */
/* 0x0b */ { RSL_MSG_UNIT_DATA_IND, "UNIT DATA INDication" }, /* 8.3.11 */
/* 0 0 0 1 - - - - Common Channel Management/TRX Management messages: */
/* 0x11 */ { RSL_MSG_BCCH_INFO, "BCCH INFOrmation" }, /* 8.5.1 */
/* 0x12 */ { RSL_MSG_CCCH_LOAD_IND, "CCCH LOAD INDication" }, /* 8.5.2 */
/* 0x13 */ { RSL_MSG_CHANRQD, "CHANnel ReQuireD" }, /* 8.5.3 */
/* 0x14 */ { RSL_MSG_DELETE_IND, "DELETE INDication" }, /* 8.5.4 */
/* 0x15 */ { RSL_MSG_PAGING_CMD, "PAGING CoMmanD" }, /* 8.5.5 */
/* 0x16 */ { RSL_MSG_IMM_ASS_CMD, "IMMEDIATE ASSIGN COMMAND" }, /* 8.5.6 */
/* 0x17 */ { RSL_MSG_SMS_BC_REQ, "SMS BroadCast REQuest" }, /* 8.5.7 */
/* Encapsulating paging messages into a packet EP2192796 - proprietor Huawei */
/* 0x18 */ { RSL_MSG_TYPE_PAGING, "PAGING Huawei extension" },
/* 0x19 */ { RSL_MSG_RF_RES_IND, "RF RESource INDication" }, /* 8.6.1 */
/* 0x1a */ { RSL_MSG_SACCH_FILL, "SACCH FILLing" }, /* 8.6.2 */
/* 0x1b */ { RSL_MSG_OVERLOAD, "OVERLOAD" }, /* 8.6.3 */
/* 0x1c */ { RSL_MSG_ERROR_REPORT, "ERROR REPORT" }, /* 8.6.4 */
/* 0x1d */ { RSL_MSG_SMS_BC_CMD, "SMS BroadCast CoMmanD" }, /* 8.5.8 */
/* 0x1e */ { RSL_MSG_CBCH_LOAD_IND, "CBCH LOAD INDication" }, /* 8.5.9 */
/* 0x1f */ { RSL_MSG_NOT_CMD, "NOTification CoMmanD" }, /* 8.5.10 */
/* 0 0 1 - - - - - Dedicated Channel Management messages: */
/* 0x21 */ { RSL_MSG_CHAN_ACTIV, "CHANnel ACTIVation" }, /* 8.4.1 */
/* 0x22 */ { RSL_MSG_CHAN_ACTIV_ACK, "CHANnel ACTIVation ACKnowledge" }, /* 8.4.2 */
/* 0x23 */ { RSL_MSG_CHAN_ACTIV_N_ACK, "CHANnel ACTIVation Negative ACK" }, /* 8.4.3 */
/* 0x24 */ { RSL_MSG_CONN_FAIL, "CONNection FAILure" }, /* 8.4.4 */
/* 0x25 */ { RSL_MSG_DEACTIVATE_SACCH, "DEACTIVATE SACCH" }, /* 8.4.5 */
/* 0x26 */ { RSL_MSG_ENCR_CMD, "ENCRyption CoMmanD" }, /* 8.4.6 */
/* 0x27 */ { RSL_MSG_HANDODET, "HANDOver DETection" }, /* 8.4.7 */
/* 0x28 */ { RSL_MSG_MEAS_RES, "MEASurement RESult" }, /* 8.4.8 */
/* 0x29 */ { RSL_MSG_MODE_MODIFY_REQ, "MODE MODIFY REQuest" }, /* 8.4.9 */
/* 0x2a */ { RSL_MSG_MODE_MODIFY_ACK, "MODE MODIFY ACKnowledge" }, /* 8.4.10 */
/* 0x2v */ { RSL_MSG_MODE_MODIFY_NACK, "MODE MODIFY Negative ACKnowledge" }, /* 8.4.11 */
/* 0x2b */ { RSL_MSG_PHY_CONTEXT_REQ, "PHYsical CONTEXT REQuest" }, /* 8.4.12 */
/* 0x2d */ { RSL_MSG_PHY_CONTEXT_CONF, "PHYsical CONTEXT CONFirm" }, /* 8.4.13 */
/* 0x2e */ { RSL_MSG_RF_CHAN_REL, "RF CHANnel RELease" }, /* 8.4.14 */
/* 0x2f */ { RSL_MSG_MS_POWER_CONTROL, "MS POWER CONTROL" }, /* 8.4.15 */
/* 0x30 */ { RSL_MSG_BS_POWER_CONTROL, "BS POWER CONTROL" }, /* 8.4.16 */
/* 0x31 */ { RSL_MSG_PREPROC_CONFIG, "PREPROCess CONFIGure" }, /* 8.4.17 */
/* 0x32 */ { RSL_MSG_PREPROC_MEAS_RES, "PREPROCessed MEASurement RESult" }, /* 8.4.18 */
/* 0x33 */ { RSL_MSG_RF_CHAN_REL_ACK, "RF CHANnel RELease ACKnowledge" }, /* 8.4.19 */
/* 0x34 */ { RSL_MSG_SACCH_INFO_MODIFY, "SACCH INFO MODIFY" }, /* 8.4.20 */
/* 0x35 */ { RSL_MSG_TALKER_DET, "TALKER DETection" }, /* 8.4.21 */
/* 0x36 */ { RSL_MSG_LISTENER_DET, "LISTENER DETection" }, /* 8.4.22 */
/* 0x37 */ { RSL_MSG_REMOTE_CODEC_CONF_REP, "REMOTE CODEC CONFiguration REPort" }, /* 8.4.23 */
/* 0x38 */ { RSL_MSG_R_T_D_REP, "Round Trip Delay REPort" }, /* 8.4.24 */
/* 0x39 */ { RSL_MSG_PRE_HANDO_NOTIF, "PRE-HANDOver NOTIFication" }, /* 8.4.25 */
/* 0x3a */ { RSL_MSG_MR_CODEC_MOD_REQ, "MultiRate CODEC MODification REQuest" }, /* 8.4.26 */
/* 0x3b */ { RSL_MSG_MR_CODEC_MOD_ACK, "MultiRate CODEC MOD ACKnowledge" }, /* 8.4.27 */
/* 0x3c */ { RSL_MSG_MR_CODEC_MOD_NACK, "MultiRate CODEC MOD Negative ACKnowledge" }, /* 8.4.28 */
/* 0x3d */ { RSL_MSG_MR_CODEC_MOD_PER, "MultiRate CODEC MOD PERformed" }, /* 8.4.29 */
/* 0x3e */ { RSL_MSG_TFO_REP, "TFO REPort" }, /* 8.4.30 */
/* 0x3f */ { RSL_MSG_TFO_MOD_REQ, "TFO MODification REQuest" }, /* 8.4.31 */
/* 0 1 - - - - - - Location Services messages: */
/* 0x41 */ { 0x41, "Location Information" }, /* 8.7.1 */
/* ip.access */
/* 0x48 */ { RSL_MSG_TYPE_IPAC_PDCH_ACT, "ip.access PDCH ACTIVATION" },
/* 0x49 */ { RSL_MSG_TYPE_IPAC_PDCH_ACT_ACK, "ip.access PDCH ACTIVATION ACK" },
/* 0x4a */ { RSL_MSG_TYPE_IPAC_PDCH_ACT_NACK, "ip.access PDCH ACTIVATION NACK" },
/* 0x4b */ { RSL_MSG_TYPE_IPAC_PDCH_DEACT, "ip.access PDCH DEACTIVATION" },
/* 0x4c */ { RSL_MSG_TYPE_IPAC_PDCH_DEACT_ACK, "ip.access PDCH DEACTIVATION ACK" },
/* 0x4d */ { RSL_MSG_TYPE_IPAC_PDCH_DEACT_NACK,"ip.access PDCH DEACTIVATION NACK" },
/* 0x60 */ { RSL_MSG_TYPE_IPAC_MEAS_PP_DEF, "ip.access MEASurement PREPROCessing DeFauLT" },
/* 0x61 */ { RSL_MSG_TYPE_IPAC_HO_CAND_INQ, "ip.access HANDOover CANDidate ENQuiry" },
/* 0x62 */ { RSL_MSG_TYPE_IPAC_HO_CAND_RESP, "ip.access HANDOover CANDidate RESPonse" },
/* 0x70 */ { RSL_MSG_TYPE_IPAC_CRCX, "ip.access CRCX" },
/* 0x71 */ { RSL_MSG_TYPE_IPAC_CRCX_ACK, "ip.access CRCX ACK" },
/* 0x72 */ { RSL_MSG_TYPE_IPAC_CRCX_NACK, "ip.access CRCX NACK" },
/* 0x73 */ { RSL_MSG_TYPE_IPAC_MDCX, "ip.access MDCX" },
/* 0x74 */ { RSL_MSG_TYPE_IPAC_MDCX_ACK, "ip.access MDCX ACK" },
/* 0x75 */ { RSL_MSG_TYPE_IPAC_MDCX_NACK, "ip.access MDCX NACK" },
/* 0x76 */ { RSL_MSG_TYPE_IPAC_DLCX_IND, "ip.access DLCX INDication" },
/* 0x77 */ { RSL_MSG_TYPE_IPAC_DLCX, "ip.access DLCX" },
/* 0x78 */ { RSL_MSG_TYPE_IPAC_DLCX_ACK, "ip.access DLCX ACK" },
/* 0x79 */ { RSL_MSG_TYPE_IPAC_DLCX_NACK, "ip.access DLCX NACK" },
/* 0x7f */ { RSL_MSG_TYPE_OSMO_ETWS_CMD, "Osmocom PRIMARY ETWS CMD" },
/* 0x48 */ { 0, NULL }
};
static value_string_ext rsl_msg_type_vals_ext = VALUE_STRING_EXT_INIT(rsl_msg_type_vals);
#define RSL_IE_CH_NO 1
#define RSL_IE_LINK_ID 2
#define RSL_IE_ACT_TYPE 3
#define RSL_IE_BS_POW 4
#define RSL_IE_CH_ID 5
#define RSL_IE_CH_MODE 6
#define RSL_IE_ENC_INF 7
#define RSL_IE_FRAME_NO 8
#define RSL_IE_HO_REF 9
#define RSL_IE_L1_INF 10
#define RSL_IE_L3_INF 11
#define RSL_IE_MS_ID 12
#define RSL_IE_MS_POW 13
#define RSL_IE_PAGING_GRP 14
#define RSL_IE_PAGING_LOAD 15
#define RSL_IE_PHY_CTX 16
#define RSL_IE_ACCESS_DELAY 17
#define RSL_IE_RACH_LOAD 18
#define RSL_IE_REQ_REF 19
#define RSL_IE_REL_MODE 20
#define RSL_IE_RESOURCE_INF 21
#define RSL_IE_RLM_CAUSE 22
#define RSL_IE_STARTING_TIME 23
#define RSL_IE_TIMING_ADV 24
#define RSL_IE_UPLINK_MEAS 25
#define RSL_IE_CAUSE 26
#define RSL_IE_MEAS_RES_NO 27
#define RSL_IE_MESSAGE_ID 28
#define RSL_IE_SYS_INFO_TYPE 30
#define RSL_IE_MS_POWER_PARAM 31
#define RSL_IE_BS_POWER_PARAM 32
#define RSL_IE_PREPROC_PARAM 33
#define RSL_IE_PREPROC_MEAS 34
#define RSL_IE_FULL_IMM_ASS_INF 35
#define RSL_IE_SMSCB_INF 36
#define RSL_IE_FULL_MS_TIMING_OFFSET 37
#define RSL_IE_ERR_MSG 38
#define RSL_IE_FULL_BCCH_INF 39
#define RSL_IE_CH_NEEDED 40
#define RSL_IE_CB_CMD_TYPE 41
#define RSL_IE_SMSCB_MESS 42
#define RSL_IE_CBCH_LOAD_INF 43
#define RSL_IE_SMSCB_CH_IND 46
#define RSL_IE_GRP_CALL_REF 47
#define RSL_IE_CH_DESC 48
#define RSL_IE_NCH_DRX_INF 49
#define RSL_IE_CMD_IND 50
#define RSL_IE_EMLPP_PRIO 51
#define RSL_IE_UIC 52
#define RSL_IE_MAIN_CH_REF 53
#define RSL_IE_MULTIRATE_CONF 54
#define RSL_IE_MULTIRATE_CNTRL 55
#define RSL_IE_SUP_CODEC_TYPES 56
#define RSL_IE_CODEC_CONF 57
#define RSL_IE_RTD 58
#define RSL_IE_TFO_STATUS 59
#define RSL_IE_LLP_APDU 60
#define RSL_IE_TFO_TRANSP_CONT 61
static const value_string rsl_ie_type_vals[] = {
/* 0x01 */ { RSL_IE_CH_NO, "Channel Number" }, /* 9.3.1 */
/* 0x02 */ { RSL_IE_LINK_ID, "Link Identifier" }, /* 9.3.2 */
/* 0x03 */ { RSL_IE_ACT_TYPE, "Activation Type" }, /* 9.3.3 */
/* 0x04 */ { RSL_IE_BS_POW, "BS Power" }, /* 9.3.4 */
/* 0x05 */ { RSL_IE_CH_ID, "Channel Identification" }, /* 9.3.5 */
/* 0x06 */ { RSL_IE_CH_MODE, "Channel Mode" }, /* 9.3.6 */
/* 0x07 */ { RSL_IE_ENC_INF, "Encryption Information" }, /* 9.3.7 */
/* 0x08 */ { RSL_IE_FRAME_NO, "Frame Number" }, /* 9.3.8 */
/* 0x09 */ { RSL_IE_HO_REF, "Handover Reference" }, /* 9.3.9 */
/* 0x0a */ { RSL_IE_L1_INF, "L1 Information" }, /* 9.3.10 */
/* 0x0b */ { RSL_IE_L3_INF, "L3 Information" }, /* 9.3.11 */
/* 0x0c */ { RSL_IE_MS_ID, "MS Identity" }, /* 9.3.12 */
/* 0x0d */ { RSL_IE_MS_POW, "MS Power" }, /* 9.3.13 */
/* 0x0e */ { RSL_IE_PAGING_GRP, "Paging Group" }, /* 9.3.14 */
/* 0x0f */ { RSL_IE_PAGING_LOAD, "Paging Load" }, /* 9.3.15 */
/* 0x10 */ { RSL_IE_PHY_CTX, "Physical Context" }, /* 9.3.16 */
/* 0x11 */ { RSL_IE_ACCESS_DELAY, "Access Delay" }, /* 9.3.17 */
/* 0x12 */ { RSL_IE_RACH_LOAD, "RACH Load" }, /* 9.3.18 */
/* 0x12 */ { RSL_IE_REQ_REF, "Request Reference" }, /* 9.3.19 */
/* 0x14 */ { RSL_IE_REL_MODE, "Release Mode" }, /* 9.3.20 */
/* 0x15 */ { RSL_IE_RESOURCE_INF, "Resource Information" }, /* 9.3.21 */
/* 0x16 */ { RSL_IE_RLM_CAUSE, "RLM Cause" }, /* 9.3.22 */
/* 0x17 */ { RSL_IE_STARTING_TIME, "Starting Time" }, /* 9.3.23 */
/* 0x18 */ { RSL_IE_TIMING_ADV, "Timing Advance" }, /* 9.3.24 */
/* 0x19 */ { RSL_IE_UPLINK_MEAS, "Uplink Measurements" }, /* 9.3.25 */
/* 0x1a */ { RSL_IE_CAUSE, "Cause" }, /* 9.3.26 */
/* 0x1b */ { RSL_IE_MEAS_RES_NO, "Measurement Result Number" }, /* 9.3.27 */
/* 0x1c */ { RSL_IE_MESSAGE_ID, "Message Identifier" }, /* 9.3.28 */
/* 0x1d */ { 0x1d, "reserved" }, /* */
/* 0x1e */ { RSL_IE_SYS_INFO_TYPE, "System Info Type" }, /* 9.3.30 */
/* 0x1f */ { RSL_IE_MS_POWER_PARAM, "MS Power Parameters" }, /* 9.3.31 */
/* 0x20 */ { RSL_IE_BS_POWER_PARAM, "BS Power Parameters" }, /* 9.3.32 */
/* 0x21 */ { RSL_IE_PREPROC_PARAM, "Pre-processing Parameters" }, /* 9.3.33 */
/* 0x22 */ { RSL_IE_PREPROC_MEAS, "Pre-processed Measurements" }, /* 9.3.34 */
/* 0x23 */ { 0x23, "reserved" }, /* */
/* 0x24 */ { RSL_IE_SMSCB_INF, "SMSCB Information" }, /* 9.3.36 */
/* 0x25 */ { RSL_IE_FULL_MS_TIMING_OFFSET, "MS Timing Offset" }, /* 9.3.37 */
/* 0x26 */ { RSL_IE_ERR_MSG, "Erroneous Message" }, /* 9.3.38 */
/* 0x27 */ { RSL_IE_FULL_BCCH_INF, "Full BCCH Information" }, /* 9.3.39 */
/* 0x28 */ { RSL_IE_CH_NEEDED, "Channel Needed" }, /* 9.3.40 */
/* 0x29 */ { RSL_IE_CB_CMD_TYPE, "CB Command type" }, /* 9.3.41 */
/* 0x2a */ { RSL_IE_SMSCB_MESS, "SMSCB Message" }, /* 9.3.42 */
/* 0x2b */ { RSL_IE_CBCH_LOAD_INF, "Full Immediate Assign Info" }, /* 9.3.35 */
/* 0x2c */ { 0x2c, "SACCH Information" }, /* 9.3.29 */
/* 0x2d */ { 0x2d, "CBCH Load Information" }, /* 9.3.43 */
/* 0x2e */ { RSL_IE_SMSCB_CH_IND, "SMSCB Channel Indicator" }, /* 9.3.44 */
/* 0x2f */ { RSL_IE_GRP_CALL_REF, "Group Call Reference" }, /* 9.3.45 */
/* 0x30 */ { RSL_IE_CH_DESC, "Channel Description" }, /* 9.3.46 */
/* 0x31 */ { RSL_IE_NCH_DRX_INF, "NCH DRX Information" }, /* 9.3.47 */
/* 0x32 */ { RSL_IE_CMD_IND, "Command Indicator" }, /* 9.3.48 */
/* 0x33 */ { RSL_IE_EMLPP_PRIO, "eMLPP Priority" }, /* 9.3.49 */
/* 0x34 */ { RSL_IE_UIC, "UIC" }, /* 9.3.50 */
/* 0x35 */ { RSL_IE_MAIN_CH_REF, "Main Channel Reference" }, /* 9.3.51 */
/* 0x36 */ { RSL_IE_MULTIRATE_CONF, "MultiRate Configuration" }, /* 9.3.52 */
/* 0x37 */ { RSL_IE_MULTIRATE_CNTRL, "MultiRate Control" }, /* 9.3.53 */
/* 0x38 */ { RSL_IE_SUP_CODEC_TYPES, "Supported Codec Types" }, /* 9.3.54 */
/* 0x39 */ { RSL_IE_CODEC_CONF, "Codec Configuration" }, /* 9.3.55 */
/* 0x3a */ { RSL_IE_RTD, "Round Trip Delay" }, /* 9.3.56 */
/* 0x3b */ { RSL_IE_TFO_STATUS, "TFO Status" }, /* 9.3.57 */
/* 0x3c */ { RSL_IE_LLP_APDU, "LLP APDU" }, /* 9.3.58 */
/* 0x3d */ { RSL_IE_TFO_TRANSP_CONT, "TFO Transparent Container" }, /* 9.3.59 */
/*
0 0 1 1 1 1 1 0
to
1 1 1 0 1 1 1 1
Reserved for future use
1 1 1 1 0 0 0 0
to
1 1 1 1 1 1 1 1
Not used
*/
/* 0x60 */ { RSL_IE_OSMO_REP_ACCH_CAP, "Repeated ACCH Capabilities" },
/* 0x61 */ { RSL_IE_OSMO_TRAINING_SEQUENCE, "Training Sequence Code/Set" },
/* 0x62 */ { RSL_IE_OSMO_TOP_ACCH_CAP, "Temporary ACCH Overpower Capabilities" },
/* 0x63 */ { RSL_IE_OSMO_OSMUX_CID, "Osmux CID" },
/* 0xe0 */ { RSL_IE_IPAC_SRTP_CONFIG,"SRTP Configuration" },
/* 0xe1 */ { RSL_IE_IPAC_PROXY_UDP, "BSC Proxy UDP Port" },
/* 0xe2 */ { RSL_IE_IPAC_BSCMPL_TOUT,"BSC Multiplex Timeout" },
/* 0xf0 */ { RSL_IE_IPAC_REMOTE_IP, "Remote IP Address" },
/* 0xf1 */ { RSL_IE_IPAC_REMOTE_PORT,"Remote RTP Port" },
/* 0xf2 */ { RSL_IE_IPAC_RTP_PAYLOAD,"RTP Payload Type" },
/* 0xf3 */ { RSL_IE_IPAC_LOCAL_PORT, "Local RTP Port" },
/* 0xf4 */ { RSL_IE_IPAC_SPEECH_MODE,"Speech Mode" },
/* 0xf5 */ { RSL_IE_IPAC_LOCAL_IP, "Local IP Address" },
/* 0xf6 */ { RSL_IE_IPAC_CONN_STAT, "Connection Statistics" },
/* 0xf7 */ { RSL_IE_IPAC_HO_C_PARMS, "Handover C Parameters" },
/* 0xf8 */ { RSL_IE_IPAC_CONN_ID, "Connection Identifier" },
/* 0xf9 */ { RSL_IE_IPAC_RTP_CSD_FMT,"RTP CSD Format" },
/* 0xfa */ { RSL_IE_IPAC_RTP_JIT_BUF,"RTP Jitter Buffer" },
/* 0xfb */ { RSL_IE_IPAC_RTP_COMPR, "RTP Compression" },
/* 0xfc */ { RSL_IE_IPAC_RTP_PAYLOAD2,"RTP Payload Type 2" },
/* 0xfd */ { RSL_IE_IPAC_RTP_MPLEX, "RTP Multiplex" },
/* 0xfe */ { RSL_IE_IPAC_RTP_MPLEX_ID,"RTP Multiplex Identifier" },
{ 0, NULL }
};
static value_string_ext rsl_ie_type_vals_ext = VALUE_STRING_EXT_INIT(rsl_ie_type_vals);
/*
C5 C4 C3 C2 C1
0 0 0 0 1 Bm + ACCH's
0 0 0 1 T Lm + ACCH's
0 0 1 T T SDCCH/4 + ACCH
0 1 T T T SDCCH/8 + ACCH
1 0 0 0 0 BCCH
1 0 0 0 1 Uplink CCCH (RACH)
1 0 0 1 0 Downlink CCCH (PCH + AGCH)
*/
static const value_string rsl_ch_no_Cbits_vals[] = {
{ 0x01, "Bm + ACCH" },
{ 0x02, "Lm + ACCH (sub-chan 0)" },
{ 0x03, "Lm + ACCH (sub-chan 1)" },
{ 0x04, "SDCCH/4 + ACCH (sub-chan 0)" },
{ 0x05, "SDCCH/4 + ACCH (sub-chan 1)" },
{ 0x06, "SDCCH/4 + ACCH (sub-chan 2)" },
{ 0x07, "SDCCH/4 + ACCH (sub-chan 3)" },
{ 0x08, "SDCCH/8 + ACCH (sub-chan 0)" },
{ 0x09, "SDCCH/8 + ACCH (sub-chan 1)" },
{ 0x0a, "SDCCH/8 + ACCH (sub-chan 2)" },
{ 0x0b, "SDCCH/8 + ACCH (sub-chan 3)" },
{ 0x0c, "SDCCH/8 + ACCH (sub-chan 4)" },
{ 0x0d, "SDCCH/8 + ACCH (sub-chan 5)" },
{ 0x0e, "SDCCH/8 + ACCH (sub-chan 6)" },
{ 0x0f, "SDCCH/8 + ACCH (sub-chan 7)" },
{ 0x10, "BCCH" },
{ 0x11, "Uplink CCCH (RACH)" },
{ 0x12, "Downlink CCCH (PCH + AGCH)" },
/* used by Osmocom and Ericsson */
{ 0x18, "PDCH" },
{ 0, NULL }
};
static value_string_ext rsl_ch_no_Cbits_vals_ext = VALUE_STRING_EXT_INIT(rsl_ch_no_Cbits_vals);
#define RSL_PHY_CTX_IE_EXT_RAND_ACCES 0x42
#define RSL_PHY_CTX_IE_AB_RX_LEVEL_ERR_BITS 0x43
#define RSL_PHY_CTX_IE_RX_LEVEL_EXT 0x45
/* Physical Context IE vals*/
static const value_string rsl_phy_con_ie_vals[] = {
{ RSL_PHY_CTX_IE_EXT_RAND_ACCES, "Ext RandAccess" },
{ RSL_PHY_CTX_IE_AB_RX_LEVEL_ERR_BITS, "AB RxLevel&ErrBits" },
{ RSL_PHY_CTX_IE_RX_LEVEL_EXT, "RxLevel Ext" },
{ 0, NULL }
};
static value_string_ext rsl_phy_con_ie_vals_ext = VALUE_STRING_EXT_INIT(rsl_phy_con_ie_vals);
/* Section 9.3.41 CB Command Type; bits 5 to 8 */
static const value_string rsl_cb_cmd_type_vals[] = {
{ 0x0, "Normal Message Broadcast" },
{ 0x8, "Schedule Message Broadcast" },
{ 0xE, "Default Message Broadcast" },
{ 0xF, "Null Message Broadcast" },
{ 0, NULL }
};
/* Section 9.3.41 CB Command Type; bit 4 */
static const value_string rsl_cb_cmd_type_def_bcast_vals[] = {
{ 0x0, "Normal Message" },
{ 0x1, "Null Message" },
{ 0, NULL }
};
/* Section 9.3.41 CB Command Type; bits 1 and 2 */
static const value_string rsl_cb_cmd_type_last_block_vals[] = {
{ 0x0, "Block 4/4" },
{ 0x1, "Block 1/4" },
{ 0x2, "Block 2/4" },
{ 0x3, "Block 3/4" },
{ 0, NULL }
};
/* From openbsc/include/openbsc/tlv.h */
enum tlv_type {
TLV_TYPE_UNKNOWN,
TLV_TYPE_FIXED,
TLV_TYPE_T,
TLV_TYPE_TV,
TLV_TYPE_TLV,
TLV_TYPE_TL16V
};
struct tlv_def {
enum tlv_type type;
guint8 fixed_len;
};
struct tlv_definition {
struct tlv_def def[0x100];
};
/* This structure is initialized in proto_register_rsl() */
static struct tlv_definition rsl_att_tlvdef;
/* 9.3.1 Channel number 9.3.1 M TV 2 */
static int
dissect_rsl_ie_ch_no(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CH_NO)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_ch_no, NULL, "Channel number IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* C-bits */
proto_tree_add_item(ie_tree, hf_rsl_ch_no_Cbits, tvb, offset, 1, ENC_BIG_ENDIAN);
/* TN is time slot number, binary represented as in 3GPP TS 45.002.
* 3 Bits
*/
proto_tree_add_item(ie_tree, hf_rsl_ch_no_TN, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
static const value_string rsl_ch_type_vals[] = {
{ 0x00, "Main signalling channel (FACCH or SDCCH)" },
{ 0x01, "SACCH" },
{ 0, NULL }
};
static const value_string rsl_prio_vals[] = {
{ 0x00, "Normal Priority" },
{ 0x01, "High Priority" },
{ 0x02, "Low Priority" },
{ 0, NULL }
};
/*
* 9.3.2 Link Identifier M TV 2
*/
static int
dissect_rsl_ie_link_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 octet;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_LINK_ID)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_link_id, NULL, "Link Identifier IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
octet = tvb_get_guint8(tvb, offset);
if ((octet & 0x20) == 0x20) {
/* Not applicable */
proto_tree_add_item(ie_tree, hf_rsl_na, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/* channel type */
proto_tree_add_item(ie_tree, hf_rsl_ch_type, tvb, offset, 1, ENC_BIG_ENDIAN);
/* NA - Not applicable */
proto_tree_add_item(ie_tree, hf_rsl_na, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Priority */
proto_tree_add_item(ie_tree, hf_rsl_prio, tvb, offset, 1, ENC_BIG_ENDIAN);
/* SAPI
* The SAPI field contains the SAPI value as defined in 3GPP TS 44.005.
*/
proto_tree_add_item(ie_tree, hf_rsl_sapi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.3 Activation Type
*/
static const true_false_string rsl_rbit_vals = {
"Reactivation",
"Initial activation"
};
static const value_string rsl_a3a2_vals[] = {
{ 0x00, "Activation related to intra-cell channel change" },
{ 0x01, "Activation related to inter-cell channel change (handover)" },
{ 0x02, "Activation related to secondary channels" },
/* non-standard value used by Ericsson */
{ 0x03, "Activation related to packet data channel" },
{ 0, NULL }
};
static const true_false_string rsl_a1_0_vals = {
"related to normal assignment procedure",
"related to immediate assignment procedure"
};
static const true_false_string rsl_a1_1_vals = {
"related to synchronous handover procedure",
"related to asynchronous handover procedure"
};
static const true_false_string rsl_a1_2_vals = {
"related to multislot configuration",
"related to additional assignment procedure"
};
static int
dissect_rsl_ie_act_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
guint octet;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_ACT_TYPE)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_act_type, NULL, "Activation Type IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* The R bit indicates if the procedure is an initial activation or a reactivation. */
proto_tree_add_item(ie_tree, hf_rsl_rbit, tvb, offset, 1, ENC_BIG_ENDIAN);
/* The A-bits indicate the type of activation, which defines the access procedure
* and the operation of the data link layer
*/
octet = (tvb_get_guint8(tvb, offset) & 0x06) >> 1;
proto_tree_add_item(ie_tree, hf_rsl_a3a2, tvb, offset, 1, ENC_BIG_ENDIAN);
switch (octet) {
case 0:
/* Activation related to intra-cell channel change */
proto_tree_add_item(ie_tree, hf_rsl_a1_0, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case 1:
/* Activation related to inter-cell channel change (handover) */
proto_tree_add_item(ie_tree, hf_rsl_a1_1, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case 2:
/* Activation related to secondary channels */
proto_tree_add_item(ie_tree, hf_rsl_a1_2, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
default:
break;
}
offset++;
return offset;
}
/*
* 9.3.4 BS Power
*/
static const true_false_string rsl_epc_mode_vals = {
"Channel in EPC mode",
"Channel not in EPC mode"
};
static const true_false_string rsl_fpc_epc_mode_vals = {
"Fast Power Control in use",
"Fast Power Control not in use"
};
static const value_string rsl_rlm_bs_power_vals[] = {
{ 0x00, "Pn" },
{ 0x01, "Pn - 2 dB" },
{ 0x02, "Pn - 4 dB" },
{ 0x03, "Pn - 6 dB" },
{ 0x04, "Pn - 8 dB" },
{ 0x05, "Pn - 10 dB" },
{ 0x06, "Pn - 12 dB" },
{ 0x07, "Pn - 14 dB" },
{ 0x08, "Pn - 16 dB" },
{ 0x09, "Pn - 18 dB" },
{ 0x0a, "Pn - 20 dB" },
{ 0x0b, "Pn - 22 dB" },
{ 0x0c, "Pn - 24 dB" },
{ 0x0d, "Pn - 26 dB" },
{ 0x0e, "Pn - 28 dB" },
{ 0x0f, "Pn - 30 dB" },
{ 0, NULL }
};
static value_string_ext rsl_rlm_bs_power_vals_ext = VALUE_STRING_EXT_INIT(rsl_rlm_bs_power_vals);
static int
dissect_rsl_ie_bs_power(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_BS_POW)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_bs_power, NULL, "BS Power IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* EPC mode */
proto_tree_add_item(ie_tree, hf_rsl_epc_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
/* FPC_EPC mode */
proto_tree_add_item(ie_tree, hf_rsl_bs_fpc_epc_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
/* The Power Level field (octet 2) indicates the number of 2 dB steps by
* which the power shall be reduced from its nominal value, Pn,
* set by the network operator to adjust the coverage.
* Thus the Power Level values correspond to the following powers (relative to Pn):
*/
proto_tree_add_item(ie_tree, hf_rsl_bs_power, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.5 Channel Identification
*/
static int
dissect_rsl_ie_ch_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint32 ma_length;
guint8 length;
int ie_offset;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CH_ID)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_ch_id, &ti, "Channel Identification IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/* 3GPP TS 44.018 "Channel Description"
* the whole of the 3GPP TS 44.018 element including the element identifier and
* length should be included.
* XXX Hmm a type 3 IE (TV).
*/
proto_tree_add_item(ie_tree, hf_rsl_channel_description_tag, tvb, offset, 1, ENC_NA);
de_rr_ch_dsc(tvb, ie_tree, pinfo, offset+1, length, NULL, 0);
offset += 4;
/* 3GPP TS 48.058 (version 15.0.0), section 9.3.5 "Channel Identification" states
* that the 3GPP TS 44.018 "Mobile Allocation" IE shall for compatibility reasons
* be included but empty, i.e. the length shall be zero. Decode it anyway. */
proto_tree_add_item(ie_tree, hf_rsl_mobile_allocation_tag, tvb, offset++, 1, ENC_NA);
proto_tree_add_item_ret_uint(ie_tree, hf_rsl_mobile_allocation_len,
tvb, offset++, 1, ENC_NA, &ma_length);
if (ma_length > 0) {
de_rr_mob_all(tvb, ie_tree, pinfo, offset, ma_length, NULL, 0);
proto_tree_add_expert(ie_tree, pinfo, &ei_rsl_mobile_allocation_deprecated,
tvb, offset, ma_length);
}
return ie_offset + length;
}
/*
* 9.3.6 Channel Mode
*/
static const true_false_string rsl_dtx_vals = {
"DTX is applied",
"DTX is not applied"
};
static const value_string rsl_speech_or_data_vals[] = {
{ 0x01, "Speech" },
{ 0x02, "Data" },
{ 0x03, "Signalling" },
{ 0, NULL }
};
static const value_string rsl_ch_rate_and_type_vals[] = {
{ 0x01, "SDCCH" },
{ 0x08, "Full rate TCH channel Bm" },
{ 0x09, "Half rate TCH channel Lm" },
{ 0x0a, "Full rate TCH channel bi-directional Bm, Multislot configuration" },
{ 0x18, "Full rate TCH channel Bm Group call channel" },
{ 0x19, "Half rate TCH channel Lm Group call channel" },
{ 0x1a, "Full rate TCH channel uni-directional downlink Bm, Multislot configuration" },
{ 0x28, "Full rate TCH channel Bm Broadcast call channel" },
{ 0x29, "PHalf rate TCH channel Lm Broadcast call channel" },
/* Osmocom specific extensions: */
{ 0x88, "Full rate TCH channel Bm in VAMOS mode" },
{ 0x89, "Half rate TCH channel Lm in VAMOS mode" },
{ 0, NULL }
};
static value_string_ext rsl_ch_rate_and_type_vals_ext = VALUE_STRING_EXT_INIT(rsl_ch_rate_and_type_vals);
static const value_string rsl_speech_coding_alg_vals[] = {
{ 0x01, "GSM speech coding algorithm version 1: GSM FR or GSM HR" },
{ 0x11, "GSM speech coding algorithm version 2: GSM EFR (half rate not defined in this version of the protocol)" },
{ 0x21, "GSM speech coding algorithm version 3: FR AMR or HR AMR" },
{ 0x31, "GSM speech coding algorithm version 4: OFR AMR-WB or OHR AMR-WB" },
{ 0x09, "GSM speech coding algorithm version 5: FR AMR-WB" },
{ 0x0d, "GSM speech coding algorithm version 6: OHR AMR" },
{ 0, NULL }
};
static const true_false_string t_nt_bit_vals = {
"Non-transparent service",
"Transparent service"
};
static const value_string rsl_ra_if_data_rte_vals[] = {
{ 0x21, "asymmetric 43.5 kbit/s (downlink) + 14.5 kbit/s (uplink)" },
{ 0x22, "asymmetric 29.0 kbit/s (downlink) + 14.5 kbit/s (uplink)" },
{ 0x23, "asymmetric 43.5 kbit/s (downlink) + 29.0 kbit/s (uplink)" },
{ 0x29, "asymmetric 14.5 kbit/s (downlink) + 43.5 kbit/s (uplink)" },
{ 0x2a, "asymmetric 14.5 kbit/s (downlink) + 29.0 kbit/s (uplink)" },
{ 0x2b, "asymmetric 29.0 kbit/s (downlink) + 43.5 kbit/s (uplink)" },
{ 0x34, "43.5 kbit/s" },
{ 0x31, "28.8 kbit/s" },
{ 0x18, "14.5 kbit/s" },
{ 0x10, "12 kbit/s" },
{ 0x11, "6 kbit/s" },
{ 0, NULL }
};
#if 0
static const value_string rsl_data_rte_vals[] = {
{ 0x38, "32 kbit/s" },
{ 0x22, "39 kbit/s" },
{ 0x18, "14.4 kbit/s" },
{ 0x10, "9.6 kbit/s" },
{ 0x11, "4.8 kbit/s" },
{ 0x12, "2.4 kbit/s" },
{ 0x13, "1.2 kbit/s" },
{ 0x14, "600 bit/s" },
{ 0x15, "1 200/75 bit/s (1 200 network-to-MS, 75 MS-to-network)" },
{ 0, NULL }
};
#endif
static int
dissect_rsl_ie_ch_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint8 length;
int ie_offset;
guint8 ie_id;
guint8 octet;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CH_MODE)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_ch_mode, &ti, "Channel Mode IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/* The DTX bits of octet 3 indicate whether DTX is applied
* DTXd indicates use of DTX in the downlink direction (BTS to MS) and
* DTXu indicates use of DTX in the uplink direction (MS to BTS).
*/
proto_tree_add_item(ie_tree, hf_rsl_cm_dtxd, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cm_dtxu, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* The "Speech or data indicator" field (octet 4) */
proto_tree_add_item(ie_tree, hf_rsl_speech_or_data, tvb, offset, 1, ENC_BIG_ENDIAN);
octet = tvb_get_guint8(tvb, offset);
offset++;
/* Channel rate and type */
proto_tree_add_item(ie_tree, hf_rsl_ch_rate_and_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Speech coding algor./data rate + transp ind */
switch (octet) {
case 1:
/* Speech */
proto_tree_add_item(ie_tree, hf_rsl_speech_coding_alg, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case 2:
/* Data */
proto_tree_add_item(ie_tree, hf_rsl_extension_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_t_nt_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
octet = tvb_get_guint8(tvb, offset);
if ((octet & 0x40) == 0x40) {
/* Non-transparent service */
/* For the non-transparent service, bits 6 to 1 indicate the radio interface data rate:*/
proto_tree_add_item(ie_tree, hf_rsl_ra_if_data_rte, tvb, offset, 1, ENC_BIG_ENDIAN);
}else{
/* For the transparent service, bits 6-1 indicate the data rate: */
proto_tree_add_item(ie_tree, hf_rsl_data_rte, tvb, offset, 1, ENC_BIG_ENDIAN);
}
break;
case 3:
/* Signalling
* If octet 4 indicates signalling then octet 6 is coded as follows:
* 0000 0000 No resources required
*/
proto_tree_add_item(ie_tree, hf_rsl_no_resources_required, tvb, offset, 1, ENC_NA);
break;
default:
/* Should not happen */
proto_tree_add_expert(ie_tree, pinfo, &ei_rsl_speech_or_data_indicator, tvb, offset, 1);
break;
}
offset++;
return ie_offset + length;
}
/*
* 9.3.7 Encryption information
*/
/* The Algorithm Identifier field (octet 3) indicates the relevant ciphering algorithm. It is coded as: */
static const value_string rsl_algorithm_id_vals[] = {
{ 0x00, "Reserved" },
{ 0x01, "No encryption shall be used" },
{ 0x02, "GSM encryption algorithm version 1 (A5/1)" },
{ 0x03, "GSM A5/2" },
{ 0x04, "GSM A5/3" },
{ 0x05, "GSM A5/4" },
{ 0x06, "GSM A5/5" },
{ 0x07, "GSM A5/6" },
{ 0x08, "GSM A5/7" },
{ 0, NULL }
};
static int
dissect_rsl_ie_enc_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint8 length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_ENC_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_enc_inf, &ti, "Encryption information IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Algorithm Identifier field (octet 3) */
proto_tree_add_item(ie_tree, hf_rsl_alg_id, tvb, offset, 1, ENC_BIG_ENDIAN);
/* key */
proto_tree_add_item(ie_tree, hf_rsl_key, tvb, offset+1, length -1, ENC_NA);
return offset + length;
}
/*
* 9.3.8 Frame Number
*/
static int
dissect_rsl_ie_frame_no(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
proto_item *ti;
guint8 ie_id;
guint16 rfn;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_FRAME_NO)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_ie_frame_no, NULL, "Frame Number IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
rfn = parse_reduced_frame_number(tvb, offset);
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T1prim, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T3, tvb, offset, 2, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T2, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ti = proto_tree_add_uint(ie_tree, hf_rsl_req_ref_rfn, tvb, offset - 2, 2, rfn);
proto_item_set_generated(ti);
return offset;
}
/*
* 9.3.9 Handover reference
*/
static int
dissect_rsl_ie_ho_ref(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_HO_REF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_ho_ref, NULL, "Handover reference IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Hand-over reference */
proto_tree_add_item(ie_tree, hf_rsl_ho_ref, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.10 L1 Information
*/
static int
dissect_rsl_ie_l1_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_L1_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_ie_l1_inf, NULL, "L1 Information IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octets 2-3 contain the L1 header information of SACCH blocks.
* The information fields and codings are as defined in 3GPP TS 44.004.
*/
/* Power level */
proto_tree_add_item(ie_tree, hf_rsl_l1inf_power_lev, tvb, offset, 1, ENC_BIG_ENDIAN);
/* FPC */
proto_tree_add_item(ie_tree, hf_rsl_l1inf_fpc, tvb, offset, 1, ENC_BIG_ENDIAN);
/* SRR (SACCH Repetition Request) bit */
proto_tree_add_item(ie_tree, hf_rsl_l1inf_srr, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Actual Timing Advance */
proto_tree_add_item(ie_tree, hf_rsl_act_timing_adv, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
typedef enum
{
L3_INF_CCCH,
L3_INF_SACCH,
L3_INF_OTHER
}l3_inf_t;
/*
* 9.3.11 L3 Information 9.3.11 M TLV >=3
*
* This element contains a link layer service data unit (L3 message).
* It is used to forward a complete L3 message as specified in
* 3GPP TS 24.008 or 3GPP TS 44.018 between BTS and BSC.
*/
static int
dissect_rsl_ie_L3_inf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, gboolean is_mandatory, l3_inf_t type)
{
proto_item *ti;
proto_tree *ie_tree;
tvbuff_t *next_tvb;
guint16 length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_L3_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_L3_inf, &ti, "L3 Information IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_ntohs(tvb, offset);
proto_item_set_len(ti, length+3);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 2, ENC_BIG_ENDIAN);
offset= offset+2;
if (type == L3_INF_CCCH)
{
/* L3 PDUs carried on CCCH have L2 PSEUDO LENGTH octet or are RR Short PD format */
proto_tree_add_item(ie_tree, hf_rsl_llsdu_ccch, tvb, offset, length, ENC_NA);
next_tvb = tvb_new_subset_length(tvb, offset, length);
/* The gsm_a_ccch dissector is the only one handling messages with L2 pseudo-length,
* so we pass it also downlink SACCH (SI5/SI6 and related) */
call_dissector(gsm_a_ccch_handle, next_tvb, pinfo, top_tree);
}
else if (type == L3_INF_SACCH)
{
/* L3 PDUs carried on SACCH are normal format or are RR Short PD format */
proto_tree_add_item(ie_tree, hf_rsl_llsdu_sacch, tvb, offset, length, ENC_NA);
next_tvb = tvb_new_subset_length(tvb, offset, length);
call_dissector(gsm_a_sacch_handle, next_tvb, pinfo, top_tree);
}
else
{
/* Link Layer Service Data Unit (i.e. a layer 3 message
* as defined in 3GPP TS 24.008 or 3GPP TS 44.018)
*/
proto_tree_add_item(ie_tree, hf_rsl_llsdu, tvb, offset, length, ENC_NA);
next_tvb = tvb_new_subset_length(tvb, offset, length);
call_dissector(gsm_a_dtap_handle, next_tvb, pinfo, top_tree);
}
offset = offset + length;
return offset;
}
/*
* 9.3.12 MS Identity
*/
static int
dissect_rsl_ie_ms_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MS_ID)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_ms_id, &ti, "MS Identity IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
de_mid(tvb, ie_tree, pinfo, offset, length, NULL, 0);
offset = offset + length;
return offset;
}
/*
* 9.3.13 MS Power
*/
static int
dissect_rsl_ie_ms_pow(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MS_POW)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_ms_pow, NULL, "MS Power IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* MS power level */
proto_tree_add_item(ie_tree, hf_rsl_ms_power_lev, tvb, offset, 1, ENC_BIG_ENDIAN);
/* FPC */
proto_tree_add_item(ie_tree, hf_rsl_ms_fpc, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Reserved */
offset++;
return offset;
}
/*
* 9.3.14 Paging Group M TV 2 2
*/
static int
dissect_rsl_ie_paging_grp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_PAGING_GRP)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_paging_grp, NULL, "Paging Group IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* The Paging Group field (octet 2) contains the binary representation of the paging
* group as defined in 3GPP TS 45.002.
*/
proto_tree_add_item(ie_tree, hf_rsl_paging_grp, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.15 Paging Load
*/
static int
dissect_rsl_ie_paging_load(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_PAGING_LOAD)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_ie_paging_load, NULL, "Paging Load IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/*
* Paging Buffer Space.
*/
proto_tree_add_item(ie_tree, hf_rsl_paging_load, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset + 2;
return offset;
}
/* Physical Context dissection *
* Rx Level Ext *
*
*/
static int
dissect_rsl_phy_ctx_rx_lvl_ext(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
{
proto_tree *rxlvl_ext_tree;
proto_item *ti;
gint length;
rxlvl_ext_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_phy_ctx_rxlvl_ext, &ti, "RxLevel Rxt (called in Pre-processed Measurements)");
/* Phy Ctx Element Identifier */
proto_tree_add_item(rxlvl_ext_tree, hf_rsl_phy_ctx_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length + 2);
proto_tree_add_item(rxlvl_ext_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Rx Level Ext */
proto_tree_add_item(rxlvl_ext_tree, hf_rsl_phy_ctx_rx_lvl_ext, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/* Physical Context dissection*
* AB RxLevel&ErrBits *
*
*/
static int
dissect_rsl_phy_ctx_ab_rx_lvl_err_bits(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
{
proto_tree *ab_tree;
proto_tree *ti;
gint length;
ab_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_phy_ctx_ab_rx_lvl_err_bits, &ti, "AB RxLevel&ErrBits IE");
/* Phy Ctx Element Identifier */
proto_tree_add_item(ab_tree, hf_rsl_phy_ctx_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length + 2);
proto_tree_add_item(ab_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* AB Rx Level */
proto_tree_add_item(ab_tree, hf_rsl_phy_ctx_ab_rx_lvl, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Traning Err Bits */
proto_tree_add_item(ab_tree, hf_rsl_phy_ctx_ab_err_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/* Physcial Context dissection*
* Ext RandAccess *
*
*/
static int
dissect_rsl_phy_ctx_ext_rand_access(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
{
proto_tree *ext_rand_access_tree;
proto_item *ti;
guint length;
ext_rand_access_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_phy_ctx_ie_ext_rand_access, &ti, "Ext RandAccess IE");
/* Phy Ctx Element identifier */
proto_tree_add_item(ext_rand_access_tree, hf_rsl_phy_ctx_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ext_rand_access_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ext_rand_access_tree, hf_rsl_phy_ctx_ext_rand_access, tvb, offset, length, ENC_NA);
offset = offset + length;
return offset;
}
/* Physical Context IE dissection
*
*/
static int
dissect_phy_ctx_ie(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint8 length)
{
proto_tree *phy_ctx_tree;
guint8 phy_ctx_ie_type;
phy_ctx_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_phy_ctx_ie, NULL, "Physical Context dissection");
phy_ctx_ie_type = tvb_get_guint8(tvb, offset);
switch (phy_ctx_ie_type) {
/* Ext RandAccess */
case RSL_PHY_CTX_IE_EXT_RAND_ACCES:
/* Ext RandAccess */
offset = dissect_rsl_phy_ctx_ext_rand_access(tvb, pinfo, phy_ctx_tree, offset);
/* AB Rx Level */
offset = dissect_rsl_phy_ctx_ab_rx_lvl_err_bits(tvb, pinfo, phy_ctx_tree, offset);
/* Rx Level Ext */
offset = dissect_rsl_phy_ctx_rx_lvl_ext(tvb, pinfo, phy_ctx_tree, offset);
break;
/* AB RxLevel&ErrBits */
case RSL_PHY_CTX_IE_AB_RX_LEVEL_ERR_BITS:
/* AB Rx Level */
offset = dissect_rsl_phy_ctx_ab_rx_lvl_err_bits(tvb, pinfo, phy_ctx_tree, offset);
/* Rx Level Ext */
offset = dissect_rsl_phy_ctx_rx_lvl_ext(tvb, pinfo, phy_ctx_tree, offset);
break;
/* RXLevelExt */
case RSL_PHY_CTX_IE_RX_LEVEL_EXT:
/* Rx Level Ext */
offset = dissect_rsl_phy_ctx_rx_lvl_ext(tvb, pinfo, phy_ctx_tree, offset);
break;
default:
break;
}
return offset;
}
/*
* 9.3.16 Physical Context TLV
*/
static int
dissect_rsl_ie_phy_ctx(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_PHY_CTX)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_phy_ctx, &ti, "Physical Context IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/*
* Physical Context Information:
* The Physical Context Information field is not specified.
* This information should not be analysed by BSC, but merely
* forwarded from one TRX/channel to another.
*/
if(global_rsl_dissect_phy_ctx_inf){
offset = dissect_phy_ctx_ie(tvb, pinfo, ie_tree, offset, length);
}else{
proto_tree_add_item(ie_tree, hf_rsl_phy_ctx, tvb, offset, length, ENC_NA);
offset = offset + length;
}
return offset;
}
/*
* 9.3.17 Access Delay M TV 2
*/
static int
dissect_rsl_ie_access_delay(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_ACCESS_DELAY)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_access_delay, NULL, "Access Delay IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_acc_delay, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.18 RACH Load
*/
static int
dissect_rsl_ie_rach_load(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
int ie_offset;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_RACH_LOAD)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_rach_load, &ti, "RACH Load IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/*
* This element is used to carry information on the load of the RACH (Random Access Channel)
* associated with this CCCH timeslot. It is of variable length.
*/
/* RACH Slot Count */
proto_tree_add_item(ie_tree, hf_rsl_rach_slot_cnt, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset +2;
length = length -2;
/* RACH Busy Count */
proto_tree_add_item(ie_tree, hf_rsl_rach_busy_cnt, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset +2;
length = length -2;
/* RACH Access Count */
proto_tree_add_item(ie_tree, hf_rsl_rach_acc_cnt, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset +2;
length = length -2;
/* Supplementary Information */
if ( length > 0) {
proto_tree_add_item(ie_tree, hf_rsl_rach_supplementary_information, tvb, offset, length, ENC_NA);
}
offset = ie_offset + length;
return offset;
}
/*
* 9.3.19 Request Reference M TV 4
*/
static int
dissect_rsl_ie_req_ref(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree, *ra_tree;
guint8 ie_id;
guint16 rfn;
proto_item *ti;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_REQ_REF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 4, ett_ie_req_ref, NULL, "Request Reference IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ti = proto_tree_add_item(ie_tree, hf_rsl_req_ref_ra, tvb, offset, 1, ENC_BIG_ENDIAN);
ra_tree = proto_item_add_subtree(ti, ett_ie_req_ref_ra);
proto_tree_add_item(ra_tree, hf_rsl_req_ref_ra_est_cause, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
rfn = parse_reduced_frame_number(tvb, offset);
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T1prim, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T3, tvb, offset, 2, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T2, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ti = proto_tree_add_uint(ie_tree, hf_rsl_req_ref_rfn, tvb, offset - 2, 2, rfn);
proto_item_set_generated(ti);
return offset;
}
static const value_string rel_mode_vals[] = {
{ 0x00, "Normal Release" },
{ 0x01, "Local End Release" },
{ 0, NULL }
};
/*
* 9.3.20 Release Mode 9.3.20 M TV 2
*/
static int
dissect_rsl_ie_rel_mode(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_REL_MODE)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_rel_mode, NULL, "Release Mode IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* The M bit is coded as follows:
* 0 normal release
* 1 local end release
*/
proto_tree_add_item(ie_tree, hf_rsl_rel_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
static const value_string rsl_rlm_cause_vals[] = {
{ 0x00, "reserved" },
{ 0x01, "timer T200 expired (N200+1) times" },
{ 0x02, "re-establishment request" },
{ 0x03, "unsolicited UA response" },
{ 0x04, "unsolicited DM response" },
{ 0x05, "unsolicited DM response, multiple frame established state" },
{ 0x06, "unsolicited supervisory response" },
{ 0x07, "sequence error" },
{ 0x08, "U-frame with incorrect parameters" },
{ 0x09, "S-frame with incorrect parameters" },
{ 0x0a, "I-frame with incorrect use of M bit" },
{ 0x0b, "I-frame with incorrect length" },
{ 0x0c, "frame not implemented" },
{ 0x0d, "SABM command, multiple frame established state" },
{ 0x0e, "SABM frame with information not allowed in this state" },
{ 0, NULL }
};
static value_string_ext rsl_rlm_cause_vals_ext = VALUE_STRING_EXT_INIT(rsl_rlm_cause_vals);
/*
* 9.3.21 Resource Information
*/
static int
dissect_rsl_ie_resource_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint8 ie_id;
guint length;
int ie_offset;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_RESOURCE_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_resource_inf, &ti, "Resource Information IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
while (length > 0) {
proto_tree_add_item(ie_tree, hf_rsl_ch_no_Cbits, tvb, offset, 1, ENC_BIG_ENDIAN);
/* TN is time slot number, binary represented as in 3GPP TS 45.002.
* 3 Bits
*/
proto_tree_add_item(ie_tree, hf_rsl_ch_no_TN, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Interference level (1) */
/* Interf Band */
proto_tree_add_item(ie_tree, hf_rsl_interf_band, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Interf Band reserved bits */
proto_tree_add_item(ie_tree, hf_rsl_interf_band_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
length = length - 2;
}
return ie_offset + length;
}
/*
* 9.3.22 RLM Cause 9.3.22 M TLV 2-4
*/
static int
dissect_rsl_ie_rlm_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
/* guint8 octet; */
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_RLM_CAUSE)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_rlm_cause, &ti, "RLM Cause IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (length == 0)
return offset;
/* The Cause Value is a one octet field if the extension bit is set to 0.
* If the extension bit is set to 1, the Cause Value is a two octet field.
*/
/* XXX: Code doesn't reflect the comment above ?? */
/* octet = tvb_get_guint8(tvb, offset); */
proto_tree_add_item(tree, hf_rsl_extension_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cause, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.23 Starting Time
*/
static int
dissect_rsl_ie_starting_time(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_STARTING_TIME)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 3, ett_ie_staring_time, NULL, "Starting Time IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T1prim, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T3, tvb, offset, 2, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_req_ref_T2, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.24 Timing Advance
*/
static int
dissect_rsl_ie_timing_adv(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_TIMING_ADV)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_timing_adv, NULL, "Timing Advance IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_timing_adv, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.25 Uplink Measurements
*/
static const true_false_string rsl_dtxd_vals = {
"Employed",
"Not employed"
};
static int
dissect_rsl_ie_uplik_meas(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
int ie_offset;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_UPLINK_MEAS)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_uplink_meas, &ti, "Uplink Measurements IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/* Octet 3
* 8 7 6 5 4 3 2 1
* rfu DTXd | RXLEV.FULL.up
*/
proto_tree_add_item(ie_tree, hf_rsl_dtxd, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_rxlev_full_up, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet4
* 8 7 6 5 4 3 2 1
* Reserved | RXLEV.SUB.up 4
*/
proto_tree_add_item(ie_tree, hf_rsl_rxlev_sub_up, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 5
* 8 7 6 5 4 3 2 1
* Reserved | RXQUAL.FULL.up | RXQUAL.SUB.up
*/
proto_tree_add_item(ie_tree, hf_rsl_rxqual_full_up, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_rxqual_sub_up, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 6 - N
* Supplementary Measurement Information
*/
return ie_offset+length;
}
/*
* 9.3.26 Cause
*/
static const value_string rsl_class_vals[] = {
{ 0x00, "Normal event" },
{ 0x01, "Normal event" },
{ 0x02, "Resource unavailable" },
{ 0x03, "Service or option not available" },
{ 0x04, "Service or option not implemented" },
{ 0x05, "Invalid message (e.g. parameter out of range)" },
{ 0x06, "Protocol error" },
{ 0x07, "Interworking" },
{ 0, NULL }
};
static const value_string rsl_cause_value_vals[] = {
{ 0x00, "radio interface failure" },
{ 0x01, "radio link failure" },
{ 0x02, "handover access failure" },
/* 0x03..0x06: "reserved for international use" */
{ 0x07, "O&M intervention" },
/* 0x08..0x0e: "reserved for international use" */
{ 0x0f, "normal event, unspecified" },
/* 0x10..0x17: "reserved for international use" */
/* 0x18..0x1f: "reserved for national use" */
{ 0x20, "equipment failure" },
{ 0x21, "radio resource not available" },
{ 0x22, "terrestrial channel failure" },
{ 0x23, "CCCH overload" },
{ 0x24, "ACCH overload" },
{ 0x25, "processor overload" },
/* 0x26: "reserved for international use" */
{ 0x27, "BTS not equipped" },
{ 0x28, "remote transcoder issue" },
/* 0x29..0x2b: "reserved for international use" */
/* 0x2c..0x2e: "reserved for national use" */
{ 0x2f, "resource not available, unspecified" },
{ 0x30, "requested transcoding/rate adaption not available" },
/* 0x31..0x37: "reserved for international use" */
/* 0x38..0x3e: "reserved for national use" */
{ 0x3f, "service or option not implemented, unspecified" },
{ 0x40, "encryption algorithm not implemented" },
/* 0x41..0x47: "reserved for international use" */
/* 0x48..0x4e: "reserved for national use" */
{ 0x4f, "service or option not implemented, unspecified" },
{ 0x50, "radio channel already activated/allocated" },
/* 0x51..0x57: "reserved for international use" */
/* 0x58..0x5e: "reserved for national use" */
{ 0x5f, "invalid message, unspecified" },
{ 0x60, "message discriminator error" },
{ 0x61, "message type error" },
{ 0x62, "message sequence error" },
{ 0x63, "general information element error" },
{ 0x64, "mandatory information element error" },
{ 0x65, "optional information element error" },
{ 0x66, "information element non-existent" },
{ 0x67, "information element length error" },
{ 0x68, "invalid information element contents" },
/* 0x69..0x6b: "reserved for international use" */
/* 0x6c..0x6e: "reserved for national use" */
{ 0x6f, "protocol error, unspecified" },
/* 0x70..0x77: "reserved for international use" */
/* 0x78..0x7e: "reserved for international use" */
{ 0x7f, "interworking, unspecified" },
{ 0, NULL }
};
static value_string_ext rsl_cause_value_vals_ext = VALUE_STRING_EXT_INIT(rsl_cause_value_vals);
static int
dissect_rsl_ie_cause(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 octet;
int ie_offset;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CAUSE)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_cause, &ti, "Cause IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/* Cause Value */
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(ie_tree, hf_rsl_extension_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_class, tvb, offset, 1, ENC_BIG_ENDIAN);
if ((octet & 0x80) != 0x80) {
proto_tree_add_item(ie_tree, hf_rsl_cause_value, tvb, offset, 1, ENC_BIG_ENDIAN);
} else {
/* TODO: Cause Extension*/
offset++;
}
offset++;
/* TODO: Diagnostic(s) if any */
return ie_offset+length;
}
/*
* 9.3.27 Measurement result number
*/
static int
dissect_rsl_ie_meas_res_no(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MEAS_RES_NO)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_meas_res_no, NULL, "Measurement result number IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Measurement result number */
proto_tree_add_item(ie_tree, hf_rsl_meas_res_no, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.28 Message Identifier
*/
static int
dissect_rsl_ie_message_id(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MESSAGE_ID)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_message_id, NULL, "Message Identifier IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Message Type */
proto_tree_add_item(ie_tree, hf_rsl_msg_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.30 System Info Type
*/
static const value_string rsl_sys_info_type_vals[] = {
{ 0x00, "SYSTEM INFORMATION 8" },
{ 0x01, "SYSTEM INFORMATION 1" },
{ 0x02, "SYSTEM INFORMATION 2" },
{ 0x03, "SYSTEM INFORMATION 3" },
{ 0x04, "SYSTEM INFORMATION 4" },
{ 0x05, "SYSTEM INFORMATION 5" },
{ 0x06, "SYSTEM INFORMATION 6" },
{ 0x07, "SYSTEM INFORMATION 7" },
{ 0x08, "SYSTEM INFORMATION 16" },
{ 0x09, "SYSTEM INFORMATION 17" },
{ 0x0a, "SYSTEM INFORMATION 2bis" },
{ 0x0b, "SYSTEM INFORMATION 2ter" },
{ 0x0d, "SYSTEM INFORMATION 5bis" },
{ 0x0e, "SYSTEM INFORMATION 5ter" },
{ 0x0f, "SYSTEM INFORMATION 10" },
{ 0x28, "SYSTEM INFORMATION 13" },
{ 0x29, "SYSTEM INFORMATION 2quater" },
{ 0x2a, "SYSTEM INFORMATION 9" },
{ 0x2b, "SYSTEM INFORMATION 18" },
{ 0x2c, "SYSTEM INFORMATION 19" },
{ 0x2d, "SYSTEM INFORMATION 20" },
{ 0x47, "EXTENDED MEASUREMENT ORDER" },
{ 0x48, "MEASUREMENT INFORMATION" },
{ 0, NULL }
};
static value_string_ext rsl_sys_info_type_vals_ext = VALUE_STRING_EXT_INIT(rsl_sys_info_type_vals);
static int
dissect_rsl_ie_sys_info_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset,
gboolean is_mandatory, guint8 *sys_info_type)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_SYS_INFO_TYPE) {
*sys_info_type = 0xff;
return offset;
}
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_sys_info_type, NULL, "System Info Type IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Message Type */
*sys_info_type = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_rsl_sys_info_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.31 MS Power Parameters
*/
static int
dissect_rsl_ie_ms_pow_params(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint8 ie_id;
guint length;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MS_POWER_PARAM)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_ms_pow_params, &ti, "MS Power Parameters IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset+length;
}
/*
* 9.3.32 BS Power Parameters
*/
static int
dissect_rsl_ie_bs_power_params(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint8 ie_id;
guint length;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_BS_POWER_PARAM)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_bs_power_params, &ti, "BS Power Parameters IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset+length;
}
/*
* 9.3.35 Full Immediate Assign Info TLV 25
*/
static int
dissect_rsl_ie_full_imm_ass_inf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
tvbuff_t *next_tvb;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_FULL_IMM_ASS_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_full_imm_ass_inf, &ti, "Full Immediate Assign Info IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* The Full Immediate Assign Info field (octets 3-25)
* contains a complete immediate assign message (IMMEDIATE ASSIGNMENT or
* IMMEDIATE ASSIGNMENT EXTENDED or IMMEDIATE ASSIGNMENT REJECT)
* as defined in 3GPP TS 44.018.
*/
proto_tree_add_item(ie_tree, hf_rsl_full_immediate_assign_info_field, tvb, offset, length, ENC_NA);
next_tvb = tvb_new_subset_length(tvb, offset, length);
call_dissector(gsm_a_ccch_handle, next_tvb, pinfo, top_tree);
offset = offset + length;
return offset;
}
/*
* 9.3.36 SMSCB Information
*
* This element is used to convey a complete frame to be broadcast on the CBCH
* including the Layer 2 header for the radio path.
*/
static int
dissect_rsl_ie_smscb_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
tvbuff_t *next_tvb;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_SMSCB_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_smscb_inf, &ti, "SMSCB Information IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/*
* SMSCB frame
*/
next_tvb = tvb_new_subset_length(tvb, offset, length);
call_dissector(gsm_cbch_handle, next_tvb, pinfo, top_tree);
offset = offset + length;
return offset;
}
/*
* 9.3.37 MS Timing Offset
*/
static int
dissect_rsl_ie_ms_timing_offset(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_FULL_MS_TIMING_OFFSET)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_ms_timing_offset, NULL, "MS Timing Offset IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Timing Offset
* The meaning of the MS Timing Offset is as defined in 3GPP TS 45.010.
* The value of MS Timing Offset is the binary value of the 8-bit Timing Offset field (octet 2) - 63.
* The range of MS Timing Offset is therefore -63 to 192.
*/
proto_tree_add_item(ie_tree, hf_rsl_timing_offset, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.38 Erroneous Message
* This information element is used to carry a complete A-bis interface message
* which was considered erroneous at reception.
*/
static int
dissect_rsl_ie_err_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_ERR_MSG)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_err_msg, &ti, "Erroneous Message IE ");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Received Message */
offset = dissct_rsl_msg(tvb, pinfo, ie_tree, offset);
return offset;
}
/*
* 9.3.39 Full BCCH Information (message name)
*/
static int
dissect_rsl_ie_full_bcch_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
tvbuff_t *next_tvb;
guint16 length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_FULL_BCCH_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_full_bcch_inf, &ti, "Full BCCH Information IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/*
* Octets 3-25 contain the complete L3 message as defined in 3GPP TS 44.018.
*/
proto_tree_add_item(ie_tree, hf_rsl_layer_3_message, tvb, offset, length, ENC_NA);
next_tvb = tvb_new_subset_length(tvb, offset, length);
call_dissector(gsm_a_ccch_handle, next_tvb, pinfo, top_tree);
offset = offset + length;
return offset;
}
/*
* 9.3.40 Channel Needed
*/
static const value_string rsl_ch_needed_vals[] = {
{ 0x00, "Any Channel" },
{ 0x01, "SDCCH" },
{ 0x02, "TCH/F (Full rate)" },
{ 0x03, "TCH/F or TCH/H (Dual rate)" },
{ 0, NULL }
};
static int
dissect_rsl_ie_ch_needed(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CH_NEEDED)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_ch_needed, NULL, "Channel Needed IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Channel */
proto_tree_add_item(ie_tree, hf_rsl_ch_needed, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.41 CB Command type
*/
static int
dissect_rsl_ie_cb_cmd_type(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CB_CMD_TYPE)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_cb_cmd_type, NULL, "CB Command type IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_cb_cmd_type, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_cb_def_bcast, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_cb_last_block, tvb, offset, 1, ENC_NA);
offset++;
return offset;
}
/*
* 9.3.42 SMSCB Message
*/
static int
dissect_rsl_ie_smscb_mess(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
tvbuff_t *next_tvb;
guint length;
guint8 ie_id;
int ie_offset;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_SMSCB_MESS)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_smscb_mess, &ti, "SMSCB Message IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/*
* SMSCB Message
*/
next_tvb = tvb_new_subset_length(tvb, offset, length);
call_dissector(gsm_cbs_handle, next_tvb, pinfo, top_tree);
offset = ie_offset + length;
return offset;
}
static int
dissect_rsl_ie_etws_pn(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
int ie_offset;
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_smscb_mess, &ti, "SMSCB Message IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/*
* ETWS Primary Notification
*/
proto_tree_add_item(ie_tree, hf_rsl_etws_pn, tvb, offset, length, ENC_NA);
offset = ie_offset + length;
return offset;
}
/*
* 9.3.43 CBCH Load Information
*/
static const true_false_string rsl_cbch_load_type_vals = {
"Overflow",
"Underflow"
};
static int
dissect_rsl_ie_cbch_load_inf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *item;
proto_tree *ie_tree;
guint8 ie_id;
guint8 octet;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CBCH_LOAD_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_cbch_load_inf, NULL, "CBCH Load Information IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
octet = tvb_get_guint8(tvb, offset);
/* CBCH Load Type */
proto_tree_add_item(ie_tree, hf_rsl_cbch_load_type, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Message Slot Count */
item = proto_tree_add_item(ie_tree, hf_rsl_msg_slt_cnt, tvb, offset, 1, ENC_BIG_ENDIAN);
if ((octet & 0x80) == 0x80) {
proto_item_append_text(item, "The amount of SMSCB messages (1 to 15) that are needed immediately by BTS");
}else{
proto_item_append_text(item, "The amount of delay in message slots (1 to 15) that is needed immediately by BTS");
}
offset++;
return offset;
}
/*
* 9.3.44 SMSCB Channel Indicator
*/
static const value_string rsl_ch_ind_vals[] = {
{ 0x00, "Basic CBCH" },
{ 0x01, "Extended CBCH (supporting the extended CBCH by the network or MSs is optional)" },
{ 0, NULL }
};
static int
dissect_rsl_ie_smscb_ch_ind(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_SMSCB_CH_IND)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_smscb_ch_ind, NULL, "SMSCB Channel Indicator IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Channel Ind */
proto_tree_add_item(ie_tree, hf_rsl_ch_ind, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.45 Group call reference
*/
static int
dissect_rsl_ie_grp_call_ref(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_GRP_CALL_REF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_grp_call_ref, &ti, "Group call reference IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_descriptive_group_or_broadcast_call_reference, tvb, offset, length, ENC_NA);
/* The octets 3 to 7 are coded in the same way as the octets 2 to 6
* in the Descriptive group or broadcast call reference
* information element as defined in 3GPP TS 24.008.
*/
de_d_gb_call_ref(tvb, ie_tree, pinfo, offset, length, NULL, 0);
offset = offset + length;
return offset;
}
/*
* 9.3.46 Channel description
*/
static int
dissect_rsl_ie_ch_desc(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CH_DESC)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_ch_desc, &ti, "Channel description IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_group_channel_description, tvb, offset, length, ENC_NA);
/* Octet j (j = 3, 4, ..., n) is the unchanged octet j-2 of a radio interface Group Channel description
* information element as defined in 3GPP TS 44.018, n-2 is equal to the length of the radio interface
* Group channel description information element
*/
offset = offset + length;
return offset;
}
/*
* 9.3.47 NCH DRX information
* This is a variable length element used to pass a radio interface information element
* from BSC to BTS.
*/
static int
dissect_rsl_ie_nch_drx(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_NCH_DRX_INF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_nch_drx, NULL, "NCH DRX information IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* NCH DRX information */
/* Octet 3 bits 7 and 8 are spare and set to zero. */
/* Octet 3 bit 6 is the NLN status parameter as defined in 3GPP TS 44.018.*/
/* Octet 3 bits 3, 4 and 5 are bits 1, 2 and 3 of the radio interface
* eMLPP priority as defined in 3GPP TS 44.018.
*/
/* Octet 3 bits 1 and 2 are bits 1 and 2 of the radio interface NLN
* as defined in 3GPP TS 44.018.
*/
offset++;
return offset;
}
/*
* 9.3.48 Command indicator
*/
static int
dissect_rsl_ie_cmd_ind(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
guint8 octet;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CMD_IND)
return offset;
}
/* TODO Length wrong if extended */
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_cmd_ind, NULL, "Command indicator IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Extension bit */
proto_tree_add_item(ie_tree, hf_rsl_extension_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
/* TODO this should probably be add_uint instead!!! */
octet = tvb_get_guint8(tvb, offset);
if ((octet & 0x80) == 0x80) {
/* extended */
/* Command Extension */
proto_tree_add_item(ie_tree, hf_rsl_command, tvb, offset, 2, ENC_BIG_ENDIAN);
offset = offset+2;
}else{
/* Command Value */
proto_tree_add_item(ie_tree, hf_rsl_command, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
return offset;
}
/*
* 9.3.49 eMLPP Priority
*/
static const value_string rsl_emlpp_prio_vals[] = {
{ 0x00, "no priority applied" },
{ 0x01, "call priority level 4" },
{ 0x02, "call priority level 3" },
{ 0x03, "call priority level 2" },
{ 0x04, "call priority level 1" },
{ 0x05, "call priority level 0" },
{ 0x06, "call priority level B" },
{ 0x07, "call priority level A" },
{ 0, NULL }
};
static int
dissect_rsl_ie_emlpp_prio(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_EMLPP_PRIO)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_emlpp_prio, NULL, "eMLPP Priority IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* The call priority field (bit 3 to 1 of octet 2) is coded in the same way
* as the call priority field (bit 3 to 1 of octet 5) in the
* Descriptive group or broadcast call reference information element
* as defined in 3GPP TS 24.008.
*/
proto_tree_add_item(ie_tree, hf_rsl_emlpp_prio, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.50 UIC
*/
static int
dissect_rsl_ie_uic(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_UIC)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_uic, NULL, "UIC IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Octet 3 bits 1 to 6 contain the radio interface octet 2 bits 3 to 8 of the
* UIC information element as defined in 3GPP TS 44.018.
*/
proto_tree_add_item(ie_tree, hf_rsl_uic, tvb, offset, 1, ENC_NA);
offset++;
return offset;
}
/*
* 9.3.51 Main channel reference
*/
static int
dissect_rsl_ie_main_ch_ref(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MAIN_CH_REF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_main_ch_ref, NULL, "Main channel reference IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* TN is time slot number, binary represented as in 3GPP TS 45.002.
* 3 Bits
*/
proto_tree_add_item(ie_tree, hf_rsl_ch_no_TN, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.52 MultiRate configuration
*/
static int
dissect_rsl_ie_multirate_conf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MULTIRATE_CONF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_multirate_conf, &ti, "MultiRate configuration IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Rest of element coded as in 3GPP TS 44.018 not including
* 3GPP TS 44.018 element identifier or 3GPP TS 44.018 octet length value
*/
de_rr_multirate_conf(tvb, ie_tree, pinfo, offset, length, NULL, 0);
offset = offset + length;
return offset;
}
/*
* 9.3.53 MultiRate Control
*/
static int
dissect_rsl_ie_multirate_cntrl(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_MULTIRATE_CNTRL)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 2, ett_ie_multirate_cntrl, NULL, "MultiRate Control IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Bit 8 -5 Spare */
/* The OD field (bit 5 of octet 3) indicates if the BSC expects distant parameters or
* TFO Decision algorithm result from the BTS
*/
/* The PRE field (bit 4 of octet 3) indicates if an handover is to be expected soon or not. */
/* The RAE field (bits 2-3, octet 3) defines whether the RATSCCH mechanism is enabled or not.*/
offset++;
return offset;
}
/*
* 9.3.54 Supported Codec Types
* This element indicates the codec types supported by the BSS or remote BSS.
*/
static int
dissect_rsl_ie_sup_codec_types(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_SUP_CODEC_TYPES)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_sup_codec_types, &ti, "Supported Codec Types IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_rsl_codec_list, tvb, offset, length, ENC_NA);
/* The Codec List field (octet 4) lists the codec types that are supported
* by the BSS and Transcoder, and are therefore potential candidates for TFO
* establishment.
*/
/* The Codec List extension 1 field (octet 5) lists additional codec types
* that are supported by the BSS and Transcoder, and are therefore potential
* candidates for TFO establishment. When no codec from this list is supported,
* then this field shall not be sent, and the extension bit of octet 4 shall
* be set to 0.
*/
/* If bit 4 of the Codec List field (octet 4) indicates that FR AMR is supported
* or if bit 5 of the Codec List field (octet 4) indicates that HR AMR is supported
* and bit 8 is set to 0, or if bit 6 of the Codec List field (octet 4) indicates
* that UMTS AMR is supported, or if bit 7 of the Codec List field (octet 4)
* indicates that UMTS AMR 2 is supported, or if bit 1, 3, 4 or 5 of the Codec List
* extension 1 field (octet 5) indicates that AMR WB is supported, the following
* two octets (after the Codec List field and its extensions) is present
*/
return offset + length;
}
/*
* 9.3.55 Codec Configuration
*/
/* The Active Codec Type field (bits 1-8, octet 3) indicates the type of codec in use. It is coded as follows: */
/*
0 0 0 0 . 0 0 0 0: Full Rate Codec in use
0 0 0 0 . 0 0 0 1: Half Rate Codec in use
0 0 0 0 . 0 0 1 0: Enhanced Full Rate Codec in use
0 0 0 0 . 0 0 1 1: FR Adaptive Multi Rate Codec in use
0 0 0 0 . 0 1 0 0: HR Adaptive Multi Rate Codec in use
0 0 0 0 . 0 1 0 1: UMTS Adaptive Multi Rate Codec in use
0 0 0 0 . 0 1 1 0: UMTS Adaptive Multi Rate 2 Codec in use
0 0 0 0 . 1 0 0 1: Full Rate Adaptive Multi-Rate WideBand Codec in use
0 0 0 0 1 0 1 0 UMTS Adaptive Multi-Rate WideBand Codec in use
0 0 0 0 1 0 1 1 8PSK Half Rate Adaptive Multi-Rate Codec in use
0 0 0 0 1 1 0 0 8PSK Full Rate Adaptive Multi-Rate WideBand Codec in use
0 0 0 0 1 1 0 1 8PSK Half Rate Adaptive Multi-Rate WideBand Codec in use
All other values are reserved for future use
*/
static int
dissect_rsl_ie_codec_conf(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_CODEC_CONF)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_codec_conf, &ti, "Codec Configuration IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Active Codec Type */
return offset + length;
}
/*
* 9.3.56 Round Trip Delay
* This element indicates the value of the calculated round trip delay between the BTS
* and the transcoder, or between the BTS and the remote BTS, if TFO is established.
*/
static const value_string rsl_delay_ind_vals[] = {
{ 0x00, "The RTD field contains the BTS-Transcoder round trip delay" },
{ 0x01, "The RTD field contains the BTS-Remote BTS round trip delay" },
{ 0, NULL }
};
static int
dissect_rsl_ie_rtd(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *rtd_item;
proto_tree *ie_tree;
guint8 ie_id;
guint8 rtd;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_RTD)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_rtd, NULL, "Round Trip Delay IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* The RTD field is the binary representation of the value of the
* round trip delay in 20 ms increments.
*/
rtd = (tvb_get_guint8(tvb, offset)>>1)*20;
rtd_item = proto_tree_add_uint(tree, hf_rsl_rtd, tvb, offset, 1, rtd);
proto_item_append_text(rtd_item, " ms");
/* The Delay IND field indicates if the delay corresponds to a BTS
* to transcoder delay or to a BTS to remote BTS delay.
*/
proto_tree_add_item(ie_tree, hf_rsl_delay_ind, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.57 TFO Status
* This element indicates if TFO is established. It is coded in 2 octets
*/
static const true_false_string rsl_tfo_vals = {
"TFO is established",
"TFO is not established"
};
static int
dissect_rsl_ie_tfo_status(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_tree *ie_tree;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_TFO_STATUS)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_tfo_status, NULL, "TFO Status IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_tfo, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/*
* 9.3.58 LLP APDU
*/
static int
dissect_rsl_ie_llp_apdu(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint8 length;
int ie_offset;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_LLP_APDU)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_llp_apdu, &ti, "LLP APDU IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/* The rest of the information element contains the embedded message
* that contains a Facility Information Element as defined in
* 3GPP TS 44.071 excluding the Facility IEI and length of Facility IEI
* octets defined in 3GPP TS 44.071.
*/
/* TODO: Given traces with LLP data this IE could be further dissected */
proto_tree_add_expert(tree, pinfo, &ei_rsl_facility_information_element_3gpp_ts_44071, tvb, offset, length);
return ie_offset + length;
}
/*
* 9.3.59 TFO transparent container
* This is a variable length element that conveys a message associated with TFO protocol,
* as defined in 3GPP TS 28.062. This element can be sent from the BSC to the BTS or
* from the BTS to the BSC. The BTS shall retrieve the information it is able to understand,
* and forward transparently the complete information to the BSC or to the TRAU.
*/
static int
dissect_rsl_ie_tfo_transp_cont(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint8 length;
int ie_offset;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_TFO_TRANSP_CONT)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0, ett_ie_tfo_transp_cont, &ti, "TFO transparent container IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Length */
length = tvb_get_guint8(tvb, offset);
proto_item_set_len(ti, length+2);
proto_tree_add_item(ie_tree, hf_rsl_ie_length, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ie_offset = offset;
/* The rest of the information element contains the embedded message
* that contains a Facility Information Element as defined in
* 3GPP TS 44.071 excluding the Facility IEI and length of Facility IEI
* octets defined in 3GPP TS 44.071.
*/
proto_tree_add_expert(tree, pinfo, &ei_rsl_embedded_message_tfo_configuration, tvb, offset, length);
return ie_offset + length;
}
/* Encapsulating paging messages into a packet EP2192796 - proprietor Huawei */
static const true_false_string rsl_paging_type_vals = {
"Packet Switched (PS)",
"Circuit Switched (CS)"
};
static int
dissect_rsl_paging_group_paras(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, gboolean increse_offset)
{
proto_tree *ie_tree;
guint8 paging_type, i, length;
/* Paging Type */
paging_type = (tvb_get_guint8(tvb, offset) & 0x80) >> 7;
/* Calculating whole length of Paging Package Info */
if(paging_type == 0){
length = 2; /* length of Paging Group Paras if it is CS type (2 byte Cs Paging Group Para) */
}else{
length = 9; /* length of Paging Group Paras if it is PS type (1 byte spare, 4x 2 byte of PS Paging Group Para */
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, length, ett_ie_paging_group_paras, NULL, "Paging Group Paras");
/* Paging Type */
proto_tree_add_item(ie_tree, hf_rsl_paging_type, tvb, offset, 1, ENC_BIG_ENDIAN);
/* CS Paging Group */
if(paging_type == 0){
proto_tree_add_item(ie_tree, hf_rsl_paging_group_cs, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_paging_group_empty_package, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++; /* move over empty (0x00) packet */
}
/* PS Paging Group */
else
{
proto_tree_add_item(ie_tree, hf_rsl_paging_group_ps_spare, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
for(i = 1; i <= 5; i++){
proto_tree_add_item(ie_tree, hf_rsl_paging_grp, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(ie_tree, hf_rsl_paging_group_empty_package, tvb, offset, 1, ENC_BIG_ENDIAN);
if(!increse_offset){
return offset; /* it's end of RSL frame */
}else{
offset++; /* move over empty (0x00) packet */
}
}
}
return offset;
}
/* Paging Package Channel And eMLPP. REF: EP2192786B1 *
* Channel Needed *
* in REF values from 9.3.40 used but "Channel Needed" is optional, and 0 is filled when invalid. *
* eMLPP Priority *
* in REf values from 9.3.49 used but "eMLPP Priority" is optional, and 0 is filled when invalid. *
*/
static const value_string rsl_paging_ch_needed_vals[] = {
{ 0x00, "Invalid Channel" },
{ 0x01, "SDCCH" },
{ 0x02, "TCH/F (Full rate)" },
{ 0x03, "TCH/F or TCH/H (Dual rate)" },
{ 0, NULL }
};
static const value_string rsl_paging_emlpp_prio_vals[] = {
{ 0x00, "invalid call priority" },
{ 0x01, "call priority level 4" },
{ 0x02, "call priority level 3" },
{ 0x03, "call priority level 2" },
{ 0x04, "call priority level 1" },
{ 0x05, "call priority level 0" },
{ 0x06, "call priority level B" },
{ 0x07, "call priority level A" },
{ 0, NULL }
};
static int
dissect_rsl_paging_package_channel_and_emlpp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
{
proto_tree *ie_tree;
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 1, ett_ie_paging_package_ch_a_emlpp, NULL, "Channel and eMLPP");
/* Channel Number */
proto_tree_add_item(ie_tree, hf_rsl_paging_package_ch_no, tvb, offset, 1, ENC_BIG_ENDIAN);
/* Channel Needed */
proto_tree_add_item(ie_tree, hf_rsl_paging_package_ch_needed, tvb, offset, 1, ENC_BIG_ENDIAN);
/* eMLPP Priority */
proto_tree_add_item(ie_tree, hf_rsl_paging_emlpp_prio, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
return offset;
}
/* Paging Package dissection. REF: EP2192796B1
*
*/
static int
dissect_rsl_paging_package(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset, guint8 package_number)
{
proto_tree *ie_tree;
guint8 i, length, paging_type;
gboolean increse_offset = TRUE;
for(i = 1; i <= package_number; i++){
/* Calculating whole length of Paging Package Info */
length = (tvb_get_guint8(tvb, offset+2) + 3);
paging_type = (tvb_get_guint8(tvb, offset + length) & 0x80) >> 7;
if(paging_type == 0){
length = length + 2; /* length of Paging Group Paras if it is CS type (2 byte Cs Paging Group Para) */
}else{
length = length + 9; /* length of Paging Group Paras if it is PS type (1 byte spare, 4x 2 byte of PS Paging Group Para */
}
ie_tree = proto_tree_add_subtree_format(tree, tvb, offset, length, ett_ie_paging_package, NULL, "Paging Package Info %u", i);
offset = dissect_rsl_paging_package_channel_and_emlpp(tvb, pinfo, ie_tree, offset);
offset = dissect_rsl_ie_ms_id(tvb, pinfo, ie_tree, offset, TRUE);
/* if its last dissected packet, incresing offset causes pointing out of RSL frame range - [Malformed Packet] appears */
if( i == package_number){
increse_offset = FALSE;
}else{
increse_offset = TRUE;
}
offset = dissect_rsl_paging_group_paras(tvb, pinfo, ie_tree, offset, increse_offset);
}
return offset;
}
/* Paging Package Number dissection. REF: EP2192796B1
*
*/
static int
dissect_rsl_paging_package_number(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int *offset)
{
proto_tree *ie_tree;
guint8 package_number;
ie_tree = proto_tree_add_subtree(tree, tvb, *offset, 1, ett_ie_paging_package_number, NULL, "Paging Package Number");
/* SPARE */
proto_tree_add_item(ie_tree, hf_rsl_paging_spare, tvb, *offset, 1, ENC_BIG_ENDIAN);
/* Paging Msg Number */
package_number = tvb_get_guint8(tvb, *offset) & 0x0f;
proto_tree_add_item(ie_tree, hf_rsl_paging_msg_no, tvb, *offset, 1, ENC_BIG_ENDIAN);
*offset += 1;
return package_number;
}
static int
dissect_rsl_ie_osmo_rep_acch_cap(tvbuff_t *tvb, packet_info *pinfo _U_,
proto_tree *tree, int offset,
gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint32 length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_OSMO_REP_ACCH_CAP)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0,
ett_ie_osmo_rep_acch_cap, &ti,
"Osmocom Repeated ACCH Capabilities IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset++, 1, ENC_NA);
/* Length */
proto_tree_add_item_ret_uint(ie_tree, hf_rsl_ie_length, tvb, offset++, 1, ENC_NA, &length);
proto_item_set_len(ti, length + 2);
proto_tree_add_item(ie_tree, hf_rsl_osmo_rep_acch_rxqual, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_rep_acch_ul_sacch, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_rep_acch_dl_sacch, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_rep_acch_dl_facch_all, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_rep_acch_dl_facch_cmd, tvb, offset, 1, ENC_NA);
offset++;
return offset;
}
static int
dissect_rsl_ie_osmo_top_acch_cap(tvbuff_t *tvb, packet_info *pinfo _U_,
proto_tree *tree, int offset,
gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint32 length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_OSMO_TOP_ACCH_CAP)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0,
ett_ie_osmo_top_acch_cap, &ti,
"Osmocom Temporary ACCH Overpower Capabilities IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset++, 1, ENC_NA);
/* Length */
proto_tree_add_item_ret_uint(ie_tree, hf_rsl_ie_length, tvb, offset++, 1, ENC_NA, &length);
proto_item_set_len(ti, length + 2);
proto_tree_add_item(ie_tree, hf_rsl_osmo_top_acch_sacch, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_top_acch_facch, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_top_acch_rxqual, tvb, offset, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_top_acch_val, tvb, offset, 1, ENC_NA);
offset++;
return offset;
}
static const value_string rsl_osmo_tsc_set_vals[] = {
{ 0, "TSC Set 1" },
{ 1, "TSC Set 2" },
{ 2, "TSC Set 3" },
{ 3, "TSC Set 4" },
{ 0, NULL }
};
static int
dissect_rsl_ie_osmo_training_seq(tvbuff_t *tvb, packet_info *pinfo _U_,
proto_tree *tree, int offset,
gboolean is_mandatory)
{
proto_item *ti;
proto_tree *ie_tree;
guint32 length;
guint8 ie_id;
if (is_mandatory == FALSE) {
ie_id = tvb_get_guint8(tvb, offset);
if (ie_id != RSL_IE_OSMO_TRAINING_SEQUENCE)
return offset;
}
ie_tree = proto_tree_add_subtree(tree, tvb, offset, 0,
ett_ie_osmo_training_seq, &ti,
"Osmocom Training Sequence IE");
/* Element identifier */
proto_tree_add_item(ie_tree, hf_rsl_ie_id, tvb, offset++, 1, ENC_NA);
/* Length */
proto_tree_add_item_ret_uint(ie_tree, hf_rsl_ie_length, tvb, offset++, 1, ENC_NA, &length);
proto_item_set_len(ti, length + 2);
proto_tree_add_item(ie_tree, hf_rsl_osmo_tsc_set, tvb, offset++, 1, ENC_NA);
proto_tree_add_item(ie_tree, hf_rsl_osmo_tsc_val, tvb, offset++, 1, ENC_NA);
return offset;
}
struct dyn_pl_info_t {
guint8 rtp_codec;
guint8 rtp_pt;
};
static int
dissct_rsl_ipaccess_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
guint8 msg_type;
guint32 local_addr = 0;
guint16 local_port = 0;
guint32 rtp_codec = 255, rtp_pt = 0;
address src_addr;
rtp_dyn_payload_t *dyn_pl = NULL;
struct dyn_pl_info_t *dyn_pl_info;
conversation_t *conv;
gboolean use_osmux = FALSE;
msg_type = tvb_get_guint8(tvb, offset) & 0x7f;
offset++;
/* parse TLV attributes */
while (tvb_reported_length_remaining(tvb, offset) > 0) {
guint8 tag;
unsigned int len, hlen;
const struct tlv_def *tdef;
proto_item *ti;
proto_tree *ie_tree = NULL;
tag = tvb_get_guint8(tvb, offset);
tdef = &rsl_att_tlvdef.def[tag];
switch (tdef->type) {
case TLV_TYPE_FIXED:
hlen = 1;
len = tdef->fixed_len;
break;
case TLV_TYPE_T:
hlen = 1;
len = 0;
break;
case TLV_TYPE_TV:
hlen = 1;
len = 1;
break;
case TLV_TYPE_TLV:
hlen = 2;
len = tvb_get_guint8(tvb, offset+1);
break;
case TLV_TYPE_TL16V:
hlen = 3;
len = tvb_get_guint8(tvb, offset+1) << 8 |
tvb_get_guint8(tvb, offset+2);
break;
case TLV_TYPE_UNKNOWN:
default:
return tvb_reported_length(tvb);
}
switch (tag) {
case RSL_IE_CH_NO:
dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_IE_FRAME_NO:
dissect_rsl_ie_frame_no(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_IE_MS_POW:
dissect_rsl_ie_ms_pow(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_IE_BS_POW:
dissect_rsl_ie_bs_power(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_IE_MS_POWER_PARAM:
dissect_rsl_ie_ms_pow_params(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_IE_BS_POWER_PARAM:
dissect_rsl_ie_bs_power_params(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_IE_CAUSE:
dissect_rsl_ie_cause(tvb, pinfo, tree, offset, FALSE);
break;
default:
ti = proto_tree_add_item(tree, hf_rsl_ie_id, tvb, offset, 1, ENC_BIG_ENDIAN);
ie_tree = proto_item_add_subtree(ti, ett_ie_local_port);
}
offset += hlen;
switch (tag) {
case RSL_IE_IPAC_REMOTE_IP:
proto_tree_add_item(ie_tree, hf_rsl_remote_ip, tvb,
offset, len, ENC_BIG_ENDIAN);
break;
case RSL_IE_IPAC_REMOTE_PORT:
proto_tree_add_item(ie_tree, hf_rsl_remote_port, tvb,
offset, len, ENC_BIG_ENDIAN);
break;
case RSL_IE_IPAC_LOCAL_IP:
proto_tree_add_item(ie_tree, hf_rsl_local_ip, tvb,
offset, len, ENC_BIG_ENDIAN);
local_addr = tvb_get_ipv4(tvb, offset);
break;
case RSL_IE_IPAC_LOCAL_PORT:
proto_tree_add_item(ie_tree, hf_rsl_local_port, tvb,
offset, len, ENC_BIG_ENDIAN);
local_port = tvb_get_ntohs(tvb, offset);
break;
case RSL_IE_IPAC_SPEECH_MODE:
proto_tree_add_item_ret_uint(ie_tree, hf_rsl_speech_mode_s, tvb,
offset, len, ENC_BIG_ENDIAN, &rtp_codec);
conv = find_or_create_conversation(pinfo);
dyn_pl_info = (struct dyn_pl_info_t *)conversation_get_proto_data(conv, proto_rsl);
if (!dyn_pl_info) {
dyn_pl_info = (struct dyn_pl_info_t *)wmem_alloc0(wmem_file_scope(), sizeof(*dyn_pl_info));
conversation_add_proto_data(conv, proto_rsl, (void *)dyn_pl_info);
}
dyn_pl_info->rtp_codec = rtp_codec;
proto_tree_add_item(ie_tree, hf_rsl_speech_mode_m, tvb,
offset, len, ENC_BIG_ENDIAN);
break;
case RSL_IE_IPAC_RTP_PAYLOAD:
case RSL_IE_IPAC_RTP_PAYLOAD2:
/* Need to set pl here */
proto_tree_add_item_ret_uint(ie_tree, hf_rsl_rtp_payload, tvb,
offset, len, ENC_BIG_ENDIAN, &rtp_pt);
conv = find_or_create_conversation(pinfo);
dyn_pl_info = (struct dyn_pl_info_t *)conversation_get_proto_data(conv, proto_rsl);
if (!dyn_pl_info) {
dyn_pl_info = (struct dyn_pl_info_t *)wmem_alloc0(wmem_file_scope(), sizeof(*dyn_pl_info));
conversation_add_proto_data(conv, proto_rsl, (void *)dyn_pl_info);
dyn_pl_info->rtp_codec = rtp_codec;
}
dyn_pl_info->rtp_pt = rtp_pt;
break;
case RSL_IE_IPAC_RTP_CSD_FMT:
proto_tree_add_item(ie_tree, hf_rsl_rtp_csd_fmt_d, tvb,
offset, len, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_rtp_csd_fmt_ir, tvb,
offset, len, ENC_BIG_ENDIAN);
break;
case RSL_IE_IPAC_CONN_ID:
proto_tree_add_item(ie_tree, hf_rsl_conn_id, tvb,
offset, len, ENC_BIG_ENDIAN);
break;
case RSL_IE_IPAC_CONN_STAT:
proto_tree_add_item(ie_tree, hf_rsl_cstat_tx_pkts, tvb,
offset, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cstat_tx_octs, tvb,
offset+4, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cstat_rx_pkts, tvb,
offset+8, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cstat_rx_octs, tvb,
offset+12, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cstat_lost_pkts, tvb,
offset+16, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cstat_ia_jitter, tvb,
offset+20, 4, ENC_BIG_ENDIAN);
proto_tree_add_item(ie_tree, hf_rsl_cstat_avg_tx_dly, tvb,
offset+24, 4, ENC_BIG_ENDIAN);
break;
case RSL_IE_OSMO_OSMUX_CID:
if (global_rsl_use_osmo_bts) {
proto_tree_add_item(ie_tree, hf_rsl_osmo_osmux_cid, tvb,
offset, len, ENC_BIG_ENDIAN);
use_osmux = TRUE;
}
break;
}
offset += len;
}
switch (msg_type) {
case RSL_MSG_TYPE_IPAC_CRCX_ACK:
if (!use_osmux) {
/* Notify the RTP and RTCP dissectors about a new RTP stream */
src_addr.type = AT_IPv4;
src_addr.len = 4;
src_addr.data = (guint8 *)&local_addr;
conv = find_or_create_conversation(pinfo);
dyn_pl_info = (struct dyn_pl_info_t *)conversation_get_proto_data(conv, proto_rsl);
if (dyn_pl_info && (dyn_pl_info->rtp_codec == 2 || dyn_pl_info->rtp_codec == 5)) {
dyn_pl = rtp_dyn_payload_new();
rtp_dyn_payload_insert(dyn_pl, dyn_pl_info->rtp_pt, "AMR", 8000);
}
conversation_delete_proto_data(conv, proto_rsl);
wmem_free(wmem_file_scope(), dyn_pl_info);
rtp_add_address(pinfo, PT_UDP, &src_addr, local_port, 0,
"GSM A-bis/IP", pinfo->num, 0, dyn_pl);
rtcp_add_address(pinfo, &src_addr, local_port+1, 0,
"GSM A-bis/IP", pinfo->num);
}
break;
}
return offset;
}
static int
dissct_rsl_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
{
guint8 msg_disc, msg_type, sys_info_type;
guint8 paging_package_number;
msg_disc = tvb_get_guint8(tvb, offset++) >> 1;
msg_type = tvb_get_guint8(tvb, offset) & 0x7f;
proto_tree_add_item(tree, hf_rsl_msg_type, tvb, offset, 1, ENC_BIG_ENDIAN);
if (msg_disc == RSL_MSGDISC_IPACCESS) {
offset = dissct_rsl_ipaccess_msg(tvb, pinfo, tree, offset);
return offset;
}
offset++;
switch (msg_type) {
/* Radio Link Layer Management messages */
/* 8.3.1 DATA REQUEST */
case RSL_MSG_TYPE_DATA_REQ:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* L3 Information 9.3.11 M TLV >=3 */
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, TRUE, L3_INF_OTHER);
break;
/* 8.3.2 DATA INDICATION */
case RSL_MSG_TYPE_DATA_IND:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* L3 Information 9.3.11 M TLV >=3 */
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, TRUE, L3_INF_OTHER);
break;
/* 8.3.3 ERROR INDICATION */
case RSL_MSG_TYPE_ERROR_IND:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* RLM Cause 9.3.22 M TLV 2-4 */
offset = dissect_rsl_ie_rlm_cause(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.3.4 ESTABLISH REQUEST */
case RSL_MSG_TYPE_EST_REQ:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.3.5 ESTABLISH CONFIRM */
case RSL_MSG_TYPE_EST_CONF:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.3.6 */
case RSL_MSG_EST_IND:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* L3 Information 9.3.11 O (note 1) TLV 3-23 */
if (tvb_reported_length_remaining(tvb, offset) >1)
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, FALSE, L3_INF_OTHER);
break;
/* 8.3.7 RELEASE REQUEST */
case RSL_MSG_REL_REQ:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* Release Mode 9.3.20 M TV 2 */
offset = dissect_rsl_ie_rel_mode(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.3.8 RELEASE CONFIRM */
case RSL_MSG_REL_CONF:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.3.9 RELEASE INDICATION */
case RSL_MSG_REL_IND:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.3.10 UNIT DATA REQUEST 10 */
case RSL_MSG_UNIT_DATA_REQ:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* L3 Information 9.3.11 O (note 1) TLV 3-23 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, FALSE, L3_INF_OTHER);
break;
/* 8.3.11 UNIT DATA INDICATION */
case RSL_MSG_UNIT_DATA_IND:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* L3 Information 9.3.11 M TLV 3-25 */
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, TRUE, L3_INF_OTHER);
break;
/* Common Channel Management/TRX Management messages */
/* 8.5.1 BCCH INFORMATION 17*/
case RSL_MSG_BCCH_INFO:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* System Info Type 9.3.30 M TV 2 */
offset = dissect_rsl_ie_sys_info_type(tvb, pinfo, tree, offset, TRUE, &sys_info_type);
/* Full BCCH Info (SYS INFO) 9.3.39 O 1) TLV 25 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_full_bcch_inf(tvb, pinfo, tree, offset, FALSE);
/* Starting Time 9.3.23 O 2) TV 3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_starting_time(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.5.2 CCCH LOAD INDICATION 18*/
case RSL_MSG_CCCH_LOAD_IND:
/* Channel number (note) 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Either RACH Load or Paging Load present */
/* RACH Load 9.3.18 C 1) TLV >=8 */
offset = dissect_rsl_ie_rach_load(tvb, pinfo, tree, offset, FALSE);
/* Paging Load 9.3.15 C 2) TV 3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_paging_load(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.5.3 */
case RSL_MSG_CHANRQD: /* 19 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Request Reference 9.3.19 M TV 4 */
offset = dissect_rsl_ie_req_ref(tvb, pinfo, tree, offset, TRUE);
/* Access Delay 9.3.17 M TV 2 */
offset = dissect_rsl_ie_access_delay(tvb, pinfo, tree, offset, TRUE);
/* Physical Context 9.3.16 O 1) TLV >=2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_phy_ctx(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.5.4 DELETE INDICATION */
case RSL_MSG_DELETE_IND: /* 20 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Full Imm. Assign Info 9.3.35 M TLV 25 */
offset = dissect_rsl_ie_full_imm_ass_inf(tvb, pinfo, tree, offset, TRUE);
break;
case RSL_MSG_PAGING_CMD: /* 21 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Paging Group 9.3.14 M TV 2 2 */
offset = dissect_rsl_ie_paging_grp(tvb, pinfo, tree, offset, TRUE);
/* MS Identity 9.3.12 M TLV 2-10 2 */
offset = dissect_rsl_ie_ms_id(tvb, pinfo, tree, offset, TRUE);
/* Channel Needed 9.3.40 O 1) TV 2 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ch_needed(tvb, pinfo, tree, offset, FALSE);
/* eMLPP Priority 9.3.49 O 2) TV 2 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_emlpp_prio(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.5.6 IMMEDIATE ASSIGN COMMAND */
case RSL_MSG_IMM_ASS_CMD: /* 22 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Full Imm. Assign Info 9.3.35 M TLV 25 */
offset = dissect_rsl_ie_full_imm_ass_inf(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.5.7 SMS BROADCAST REQUEST */
case RSL_MSG_SMS_BC_REQ: /* 23 8.5.7 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* SMSCB Information 9.3.36 M TV 24 */
offset = dissect_rsl_ie_smscb_inf(tvb, pinfo, tree, offset, TRUE);
/* SMSCB Channel Indicator 9.3.44 O 1) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_smscb_ch_ind(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.6 TRX MANAGEMENT MESSAGES */
/* 8.6.1 RF RESOURCE INDICATION */
case RSL_MSG_RF_RES_IND: /* 24 8.6.1 */
/* Resource Information 9.3.21 M TLV >=2 */
offset = dissect_rsl_ie_resource_inf(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.6.2 SACCH FILLING */
case RSL_MSG_SACCH_FILL: /* 25 8.6.2 */
/* System Info Type 9.3.30 M TV 2 */
offset = dissect_rsl_ie_sys_info_type(tvb, pinfo, tree, offset, TRUE, &sys_info_type);
/* L3 Info (SYS INFO) 9.3.11 O 1) TLV 22 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, FALSE,
(sys_info_type == 0x48) ? L3_INF_SACCH : L3_INF_CCCH);
/* Starting Time 9.3.23 O 2) TV 3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_starting_time(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_MSG_OVERLOAD: /* 27 8.6.3 */
/* Cause 9.3.26 M TLV >=3 */
offset = dissect_rsl_ie_cause(tvb, pinfo, tree, offset, TRUE);
break;
case RSL_MSG_ERROR_REPORT: /* 28 8.6.4 */
/* Cause 9.3.26 M TLV >=3 */
offset = dissect_rsl_ie_cause(tvb, pinfo, tree, offset, TRUE);
/* Message Identifier 9.3.28 O 1) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_message_id(tvb, pinfo, tree, offset, FALSE);
/* Channel Number 9.3.1 O 2) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, FALSE);
/* Link identifier 9.3.2 O 3) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, FALSE);
/* Erroneous Message 9.3.38 O 4) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_err_msg(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.5.8 SMS BROADCAST COMMAND */
case RSL_MSG_SMS_BC_CMD: /* 29 8.5.8 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* CB Command type 9.3.41 M TV 2 */
offset = dissect_rsl_ie_cb_cmd_type(tvb, pinfo, tree, offset, TRUE);
/* SMSCB message 9.3.42 M TLV 2-90 */
offset = dissect_rsl_ie_smscb_mess(tvb, pinfo, tree, offset, TRUE);
/* SMSCB Channel Indicator 9.3.44 O 1) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_smscb_ch_ind(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_MSG_CBCH_LOAD_IND: /* 30 8.5.9 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* CBCH Load Information 9.3.43 M TV 2 */
offset = dissect_rsl_ie_cbch_load_inf(tvb, pinfo, tree, offset, TRUE);
/* SMSCB Channel Indicator 9.3.44 O 1) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_smscb_ch_ind(tvb, pinfo, tree, offset, FALSE);
break;
case RSL_MSG_NOT_CMD: /* 31 8.5.10 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Command indicator 9.3.48 M 1) TLV 3-4 */
offset = dissect_rsl_ie_cmd_ind(tvb, pinfo, tree, offset, TRUE);
/* Group call reference 9.3.45 O TLV 7 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_grp_call_ref(tvb, pinfo, tree, offset, FALSE);
/* Channel Description 9.3.46 O TLV 3-n */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ch_desc(tvb, pinfo, tree, offset, FALSE);
/* NCH DRX information 9.3.47 O TLV 3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_nch_drx(tvb, pinfo, tree, offset, FALSE);
break;
/* Dedicated Channel Management messages: */
/* 8.4.1 CHANNEL ACTIVATION 33*/
case RSL_MSG_CHAN_ACTIV:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Activation Type 9.3.3 M TV 2 */
offset = dissect_rsl_ie_act_type(tvb, pinfo, tree, offset, TRUE);
/* Channel Mode 9.3.6 M TLV 8-9 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
/* mandatory in 48.008, but not in Ericsson + Osmocom */
offset = dissect_rsl_ie_ch_mode(tvb, pinfo, tree, offset, TRUE);
/* Channel Identification 9.3.5 O 7) TLV 8 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ch_id(tvb, pinfo, tree, offset, FALSE);
/* Encryption information 9.3.7 O 1) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_enc_inf(tvb, pinfo, tree, offset, FALSE);
/* Handover Reference 9.3.9 C 2) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ho_ref(tvb, pinfo, tree, offset, FALSE);
/* BS Power 9.3.4 O 3) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_bs_power(tvb, pinfo, tree, offset, FALSE);
/* MS Power 9.3.13 O 3) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ms_pow(tvb, pinfo, tree, offset, FALSE);
/* Timing Advance 9.3.24 C 3) 4) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_timing_adv(tvb, pinfo, tree, offset, FALSE);
/* BS Power Parameters 9.3.32 O 5) TLV >=2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_bs_power_params(tvb, pinfo, tree, offset, FALSE);
/* MS Power Parameters 9.3.31 O 5) TLV >=2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ms_pow_params(tvb, pinfo, tree, offset, FALSE);
/* Physical Context 9.3.16 O 6) TLV >=2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_phy_ctx(tvb, pinfo, tree, offset, FALSE);
/* SACCH Information 9.3.29 O 8) TLV >=3 */
/* UIC 9.3.50 O 9) TLV 3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_uic(tvb, pinfo, tree, offset, FALSE);
/* Main channel reference 9.3.51 O 10) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_main_ch_ref(tvb, pinfo, tree, offset, FALSE);
/* MultiRate configuration 9.3.52 O 11) TLV >=4 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_multirate_conf(tvb, pinfo, tree, offset, FALSE);
/* MultiRate Control 9.3.53 O 12) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_multirate_cntrl(tvb, pinfo, tree, offset, FALSE);
/* Supported Codec Types 9.3.54 O 12) TLV >=5 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_sup_codec_types(tvb, pinfo, tree, offset, FALSE);
/* TFO transparent container 9.3.59 O 12) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_tfo_transp_cont(tvb, pinfo, tree, offset, FALSE);
/* Osmocom specific IEs */
if (global_rsl_use_osmo_bts) {
/* Repeated ACCH Capabilities O TLV */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_osmo_rep_acch_cap(tvb, pinfo, tree, offset, FALSE);
/* Temporary ACCH Overpower Capabilities O TLV */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_osmo_top_acch_cap(tvb, pinfo, tree, offset, FALSE);
/* Training Sequence O TLV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_osmo_training_seq(tvb, pinfo, tree, offset, FALSE);
}
break;
/* 8.4.2 CHANNEL ACTIVATION ACKNOWLEDGE 34*/
case RSL_MSG_CHAN_ACTIV_ACK:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Frame number 9.3.8 M TV 3 */
offset = dissect_rsl_ie_frame_no(tvb, pinfo, tree, offset, TRUE);
break;
case RSL_MSG_CHAN_ACTIV_N_ACK:
/* 8.4.3 CHANNEL ACTIVATION NEGATIVE ACKNOWLEDGE */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Cause 9.3.26 M TLV >=3 */
offset = dissect_rsl_ie_cause(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.4 CONNECTION FAILURE INDICATION */
case RSL_MSG_CONN_FAIL:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Cause 9.3.26 M TLV >=3 */
offset = dissect_rsl_ie_cause(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.5 DEACTIVATE SACCH */
case RSL_MSG_DEACTIVATE_SACCH:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.6 ENCRYPTION COMMAND */
case RSL_MSG_ENCR_CMD: /* 38 8.4.6 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Encryption information 9.3.7 M TLV >=3 */
offset = dissect_rsl_ie_enc_inf(tvb, pinfo, tree, offset, TRUE);
/* Link Identifier 9.3.2 M TV 2 */
offset = dissect_rsl_ie_link_id(tvb, pinfo, tree, offset, TRUE);
/* L3 Info (CIPH MOD CMD) 9.3.11 M TLV 6 */
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, TRUE, L3_INF_OTHER);
break;
/* 8.4.7 HANDOVER DETECTION */
case RSL_MSG_HANDODET: /* 39 8.4.7 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Access Delay 9.3.17 O 1) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_access_delay(tvb, pinfo, tree, offset, FALSE);
/* Osmocom specific IEs */
if (global_rsl_use_osmo_bts) {
/* Training Sequence O TLV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_osmo_training_seq(tvb, pinfo, tree, offset, FALSE);
}
break;
/* 8.4.8 MEASUREMENT RESULT 40 */
case RSL_MSG_MEAS_RES:
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Measurement result number 9.3.27 M TV 2 */
offset = dissect_rsl_ie_meas_res_no(tvb, pinfo, tree, offset, TRUE);
/* Uplink Measurements 9.3.25 M TLV >=5 */
offset = dissect_rsl_ie_uplik_meas(tvb, pinfo, tree, offset, TRUE);
/* BS Power 9.3.4 M TV 2 */
offset = dissect_rsl_ie_bs_power(tvb, pinfo, tree, offset, TRUE);
/* L1 Information 9.3.10 O 1) TV 3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_l1_inf(tvb, pinfo, tree, offset, FALSE);
/* L3 Info (MEAS REP, EXT MEAS REP or ENH MEAS REP) 9.3.11 O 1) TLV 21 */
if (tvb_reported_length_remaining(tvb, offset) > 3){
/* Try to figure out of we have (MEAS REP, EXT MEAS REP or ENH MEAS REP) */
if ( ( tvb_get_guint8(tvb, offset+3) & 0xFE ) == 0x10 ) {
/* ENH MEAS REP */
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, FALSE, L3_INF_SACCH);
}else{
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, FALSE, L3_INF_OTHER);
}
}
/* MS Timing Offset 9.3.37 O 2) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ms_timing_offset(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.9 MODE MODIFY */
case RSL_MSG_MODE_MODIFY_REQ: /* 41 8.4.9 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Channel Mode 9.3.6 M TLV 8-9 */
offset = dissect_rsl_ie_ch_mode(tvb, pinfo, tree, offset, TRUE);
/* Encryption information 9.3.7 O 1) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_enc_inf(tvb, pinfo, tree, offset, FALSE);
/* Main channel reference 9.3.45 O 2) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_main_ch_ref(tvb, pinfo, tree, offset, FALSE);
/* MultiRate configuration 9.3.52 O 3) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_multirate_conf(tvb, pinfo, tree, offset, FALSE);
/* Multirate Control 9.3.53 O 4) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_multirate_cntrl(tvb, pinfo, tree, offset, FALSE);
/* Supported Codec Types 9.3.54 O 4) TLV >=5 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_sup_codec_types(tvb, pinfo, tree, offset, FALSE);
/* TFO transparent container 9.3.59 O 4) TLV */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_tfo_transp_cont(tvb, pinfo, tree, offset, FALSE);
/* Osmocom specific IEs */
if (global_rsl_use_osmo_bts) {
/* Repeated ACCH Capabilities O TLV */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_osmo_rep_acch_cap(tvb, pinfo, tree, offset, FALSE);
/* Temporary ACCH Overpower Capabilities O TLV */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_osmo_top_acch_cap(tvb, pinfo, tree, offset, FALSE);
/* Training Sequence O TLV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_osmo_training_seq(tvb, pinfo, tree, offset, FALSE);
}
break;
/* 8.4.10 MODE MODIFY ACKNOWLEDGE */
case RSL_MSG_MODE_MODIFY_ACK: /* 42 8.4.10 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.11 MODE MODIFY NEGATIVE ACKNOWLEDGE */
case RSL_MSG_MODE_MODIFY_NACK: /* 43 8.4.11 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Cause 9.3.26 M TLV >=3 */
offset = dissect_rsl_ie_cause(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.12 PHYSICAL CONTEXT REQUEST */
case RSL_MSG_PHY_CONTEXT_REQ: /* 44 8.4.12 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.13 PHYSICAL CONTEXT CONFIRM */
case RSL_MSG_PHY_CONTEXT_CONF: /* 45 8.4.13 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* BS Power 9.3.4 M TV 2 */
offset = dissect_rsl_ie_bs_power(tvb, pinfo, tree, offset, TRUE);
/* MS Power 9.3.13 M TV 2 */
offset = dissect_rsl_ie_ms_pow(tvb, pinfo, tree, offset, TRUE);
/* Timing Advance 9.3.24 M TV 2 */
offset = dissect_rsl_ie_timing_adv(tvb, pinfo, tree, offset, TRUE);
/* Physical Context 9.3.16 O 1) TLV */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_phy_ctx(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.14 RF CHANNEL RELEASE */
case RSL_MSG_RF_CHAN_REL: /* 46 8.4.14 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.15 MS POWER CONTROL */
case RSL_MSG_MS_POWER_CONTROL: /* 47 8.4.15 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* MS Power 9.3.13 M TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ms_pow(tvb, pinfo, tree, offset, FALSE);
/* MS Power Parameters 9.3.31 O 1) TLV >=2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ms_pow_params(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.16 BS POWER CONTROL */
case RSL_MSG_BS_POWER_CONTROL: /* 48 8.4.16 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* BS Power 9.3.4 M TV 2 */
offset = dissect_rsl_ie_bs_power(tvb, pinfo, tree, offset, TRUE);
/* BS Power Parameters 9.3.32 O 1) TLV >=2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_bs_power_params(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.17 PREPROCESS CONFIGURE */
case RSL_MSG_PREPROC_CONFIG: /* 49 8.4.17 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Preproc. Parameters 9.3.33 M TLV >=3 */
break;
/* 8.4.18 PREPROCESSED MEASUREMENT RESULT */
case RSL_MSG_PREPROC_MEAS_RES: /* 50 8.4.18 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Preproc. Measurements 9.3.34 M TLV >=2 */
break;
/* 8.4.19 RF CHANNEL RELEASE ACKNOWLEDGE */
case RSL_MSG_RF_CHAN_REL_ACK: /* 51 8.4.19 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.20 SACCH INFO MODIFY */
case RSL_MSG_SACCH_INFO_MODIFY: /* 52 8.4.20 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* System Info Type 9.3.30 M TV 2 */
offset = dissect_rsl_ie_sys_info_type(tvb, pinfo, tree, offset, TRUE, &sys_info_type);
/* L3 Info 9.3.11 O 1) TLV 22 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_L3_inf(tvb, pinfo, tree, offset, FALSE,
(sys_info_type == 0x48) ? L3_INF_SACCH : L3_INF_CCCH);
/* Starting Time 9.3.23 O 2) TV 3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_starting_time(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.21 TALKER DETECTION */
case RSL_MSG_TALKER_DET: /* 53 8.4.21 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Access Delay 9.3.17 O 1) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.22 LISTENER DETECTION */
case RSL_MSG_LISTENER_DET: /* 54 8.4.22 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Access Delay 9.3.17 O 1) TV 2 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.23 REMOTE CODEC CONFIGURATION REPORT */
case RSL_MSG_REMOTE_CODEC_CONF_REP:/* 55 8.4.23 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Codec Configuration 9.3.55 M TLV >=3 */
offset = dissect_rsl_ie_codec_conf(tvb, pinfo, tree, offset, TRUE);
/* Supported Codec Types 9.3.54 M TLV >=5 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_sup_codec_types(tvb, pinfo, tree, offset, FALSE);
/* TFO transparent container 9.3.59 O 4) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_tfo_transp_cont(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.24 ROUND TRIP DELAY REPORT */
case RSL_MSG_R_T_D_REP: /* 56 8.4.24 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Round Trip Delay 9.3.56 M TV 2 */
offset = dissect_rsl_ie_rtd(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.25 PRE-HANDOVER NOTIFICATION */
case RSL_MSG_PRE_HANDO_NOTIF: /* 57 8.4.25 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* MultiRateControl 9.3.53 M TV 2 */
offset = dissect_rsl_ie_multirate_cntrl(tvb, pinfo, tree, offset, TRUE);
/* Codec Configuration 9.3.55 M TLV >=3 */
offset = dissect_rsl_ie_codec_conf(tvb, pinfo, tree, offset, TRUE);
/* TFO transparent container 9.3.59 O 4) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_tfo_transp_cont(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.26 MULTIRATE CODEC MODIFICATION REQUEST */
case RSL_MSG_MR_CODEC_MOD_REQ: /* 58 8.4.26 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* MultiRate Configuration 9.3.52 O 1) TLV >=4 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_multirate_conf(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.27 MULTIRATE CODEC MODIFICATION ACKNOWLEDGE */
case RSL_MSG_MR_CODEC_MOD_ACK: /* 59 8.4.27 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* MultiRate Configuration 9.3.52 O 1) TLV >=4 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_multirate_conf(tvb, pinfo, tree, offset, FALSE);
break;
/* 8.4.28 MULTIRATE CODEC MODIFICATION NEGATIVE ACKNOWLEDGE */
case RSL_MSG_MR_CODEC_MOD_NACK: /* 60 8.4.28 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* Cause 9.3.26 M TLV >=3 */
offset = dissect_rsl_ie_cause(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.29 MULTIRATE CODEC MODIFICATION PERFORMED */
case RSL_MSG_MR_CODEC_MOD_PER: /* 61 8.4.29 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* MultiRate Configuration 9.3.52 M TLV >=4 */
offset = dissect_rsl_ie_multirate_conf(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.30 TFO REPORT */
case RSL_MSG_TFO_REP: /* 62 8.4.30 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* TFO Status 9.3.57 M TV 1 */
offset = dissect_rsl_ie_tfo_status(tvb, pinfo, tree, offset, TRUE);
break;
/* 8.4.31 TFO MODIFICATION REQUEST */
case RSL_MSG_TFO_MOD_REQ: /* 63 8.4.31 */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* MultiRateControl 9.3.53 M TV 2 */
offset = dissect_rsl_ie_multirate_cntrl(tvb, pinfo, tree, offset, TRUE);
/* Supported Codec Type 9.3.54 O 1) TLV >=5 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_sup_codec_types(tvb, pinfo, tree, offset, FALSE);
/* TFO transparent container 9.3.59 O 4) TLV >=3 */
if (tvb_reported_length_remaining(tvb, offset) > 0)
offset = dissect_rsl_ie_tfo_transp_cont(tvb, pinfo, tree, offset, FALSE);
break;
/* 0 1 - - - - - - Location Services messages: */
/* 8.7.1 LOCATION INFORMATION */
case RSL_MSG_LOC_INF: /* 65 8.7.1 */
/* LLP APDU 9.3.58 M LV 2-N */
offset = dissect_rsl_ie_llp_apdu(tvb, pinfo, tree, offset, TRUE);
break;
/* Encapsulating paging messages into a packet EP2192796 - proprietor Huawei */
case RSL_MSG_TYPE_PAGING:
paging_package_number = dissect_rsl_paging_package_number(tvb, pinfo, tree, &offset);
offset = dissect_rsl_paging_package(tvb, pinfo, tree, offset, paging_package_number);
break;
case RSL_MSG_TYPE_OSMO_ETWS_CMD:
/* See http://ftp.osmocom.org/docs/latest/osmobts-abis.pdf Section 5.5 on ETWS */
/* Channel number 9.3.1 M TV 2 */
offset = dissect_rsl_ie_ch_no(tvb, pinfo, tree, offset, TRUE);
/* ETWS PN (Osmocom) Osmo 5.6.17 M TLV 2-58 */
offset = dissect_rsl_ie_etws_pn(tvb, pinfo, tree, offset);
break;
/* the following messages are ip.access specific but sent without
* ip.access memssage discriminator */
case RSL_MSG_TYPE_IPAC_MEAS_PP_DEF:
case RSL_MSG_TYPE_IPAC_HO_CAND_INQ:
case RSL_MSG_TYPE_IPAC_HO_CAND_RESP:
case RSL_MSG_TYPE_IPAC_PDCH_ACT:
case RSL_MSG_TYPE_IPAC_PDCH_ACT_ACK:
case RSL_MSG_TYPE_IPAC_PDCH_ACT_NACK:
case RSL_MSG_TYPE_IPAC_PDCH_DEACT:
case RSL_MSG_TYPE_IPAC_PDCH_DEACT_ACK:
case RSL_MSG_TYPE_IPAC_PDCH_DEACT_NACK:
if (global_rsl_use_nano_bts)
offset = dissct_rsl_ipaccess_msg(tvb, pinfo, tree, offset-1);
default:
break;
}
return offset;
}
static const value_string rsl_ipacc_spm_s_vals[] = {
{ 0, "GSM FR codec (GSM type 1, FS)" },
{ 1, "GSM EFR codec (GSM type 2, FS)" },
{ 2, "GSM AMR/FR codec (GSM type 3, FS)" },
{ 3, "GSM HR codec (GSM type 1, HS)" },
{ 5, "GSM AMR/HR codec (GSM type 3, HS)" },
{ 0xf, "As specified by RTP Payload Type IE" },
{ 0, NULL }
};
static const value_string rsl_ipacc_spm_m_vals[] = {
{ 0, "Send and Receive" },
{ 1, "Receive Only" },
{ 2, "Send Only" },
{ 0, NULL }
};
static const value_string rsl_ipacc_rtp_csd_fmt_d_vals[] = {
{ 0, "External TRAU format" },
{ 1, "Non-TRAU Packed format" },
{ 2, "TRAU within the BTS" },
{ 3, "IWF-Free BTS-BTS Data" },
{ 0, NULL }
};
static const value_string rsl_ipacc_rtp_csd_fmt_ir_vals[] = {
{ 0, "8kb/s" },
{ 1, "16kb/s" },
{ 2, "32kb/s" },
{ 3, "64kb/s" },
{ 0, NULL }
};
/* GSM 04.08 9.1.8 Channel request, ESTABLISHMENT CAUSE */
static void
req_ref_ra_est_cause_convert(gchar *result, guint32 ra)
{
gchar *str;
switch (ra & 0xe0) { /* 3 bit Establishment Cause codes */
case 0x00:
str = "Location updating and the network does not set NECI bit to 1";
goto found;
case 0x80:
str = "Answer to paging: 'Any Channel', or ('TCH/F' or 'TCH/H or TCH/F') if MS is 'Full rate only'";
goto found;
case 0xa0:
str = "Emergency call";
goto found;
case 0xc0:
str = "Call re-establishment; TCH/F was in use, or TCH/H was in use but the network does not set NECI bit to 1";
goto found;
case 0xe0:
str = "Originating call and TCH/F is needed, or originating call and the network does not set NECI bit to 1,"
" or procedures that can be completed with a SDCCH and the network does not set NECI bit to 1";
goto found;
}
switch (ra & 0xf0) { /* 4 bit Establishment Cause codes */
case 0x00:
str = "Location updating and the network sets NECI bit to 1";
goto found;
case 0x10:
str = "Answer to paging: 'SDCCH' / Other procedures which can be completed with an SDCCH and the network sets NECI bit to 1";
goto found;
case 0x20:
str = "Answer to paging: MS is dual rate capable and requests 'TCH/F' only";
goto found;
case 0x30:
str = "Answer to paging: MS is dual rate capable and requests 'TCH/H or TCH/F'";
goto found;
case 0x40:
str = "Originating speech call from dual-rate mobile station when TCH/H is sufficient and the network sets NECI bit to 1";
goto found;
case 0x50:
str = "Originating data call from dual-rate mobile station when TCH/H is sufficient and the network sets NECI bit to 1";
goto found;
case 0x70:
str = "Reserved for future use. An SDCCH may be allocated";
goto found;
}
switch (ra & 0xf8) { /* 5 bit Establishment Cause codes */
case 0x60:
str = "Reserved for future use. An SDCCH may be allocated";
goto found;
}
switch (ra & 0xfc) { /* 6 bit Establishment Cause codes */
case 0x68:
str = "Call re-establishment; TCH/H was in use and the network sets NECI bit to 1";
goto found;
case 0x6c:
str = "Call re-establishment; TCH/H + TCH/H was in use and the network sets NECI bit to 1";
goto found;
}
snprintf(result, ITEM_LABEL_LENGTH, "unknown ra %u", ra);
return;
found:
snprintf(result, ITEM_LABEL_LENGTH, "%s", str);
}
static int
dissect_rsl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *ti;
proto_tree *rsl_tree;
guint8 msg_type;
int offset = 0;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RSL");
col_clear(pinfo->cinfo, COL_INFO);
msg_type = tvb_get_guint8(tvb, offset+1) & 0x7f;
col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_ext(msg_type, &rsl_msg_type_vals_ext, "unknown %u"));
top_tree = tree;
ti = proto_tree_add_item(tree, proto_rsl, tvb, 0, -1, ENC_NA);
/* if nanoBTS specific vendor messages are not enabled, skip */
if (!global_rsl_use_nano_bts) {
guint8 msg_disc = tvb_get_guint8(tvb, offset) >> 1;
if (msg_disc == RSL_MSGDISC_IPACCESS)
return 0;
}
rsl_tree = proto_item_add_subtree(ti, ett_rsl);
/* 9.1 Message discriminator */
proto_tree_add_item(rsl_tree, hf_rsl_msg_dsc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(rsl_tree, hf_rsl_T_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
offset = dissct_rsl_msg(tvb, pinfo, rsl_tree, offset);
return offset;
}
/* Register the protocol with Wireshark */
void proto_register_rsl(void)
{
/* Setup list of header fields */
static hf_register_info hf[] = {
{ &hf_rsl_msg_dsc,
{ "Message discriminator", "gsm_abis_rsl.msg_dsc",
FT_UINT8, BASE_DEC, VALS(rsl_msg_disc_vals), 0xfe,
NULL, HFILL }
},
{ &hf_rsl_T_bit,
{ "T bit", "gsm_abis_rsl.T_bit",
FT_BOOLEAN, 8, TFS(&rsl_t_bit_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_msg_type,
{ "Message type", "gsm_abis_rsl.msg_type",
FT_UINT8, BASE_HEX_DEC|BASE_EXT_STRING, &rsl_msg_type_vals_ext, 0x7f,
NULL, HFILL }
},
{ &hf_rsl_ie_id,
{ "Element identifier", "gsm_abis_rsl.ie_id",
FT_UINT8, BASE_HEX_DEC|BASE_EXT_STRING, &rsl_ie_type_vals_ext, 0x0,
NULL, HFILL }
},
{ &hf_rsl_ie_length,
{ "Length", "gsm_abis_rsl.ie_length",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_ch_no_Cbits,
{ "C-bits", "gsm_abis_rsl.ch_no_Cbits",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &rsl_ch_no_Cbits_vals_ext, 0xf8,
NULL, HFILL }
},
{ &hf_rsl_ch_no_TN,
{ "Time slot number (TN)", "gsm_abis_rsl.ch_no_TN",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL }
},
{ &hf_rsl_rtd,
{ "Round Trip Delay (RTD)", "gsm_abis_rsl.rtd",
FT_UINT8, BASE_DEC, NULL, 0xfe,
NULL, HFILL }
},
{ &hf_rsl_delay_ind,
{ "Delay IND", "gsm_abis_rsl.delay_ind",
FT_UINT8, BASE_DEC, VALS(rsl_delay_ind_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_tfo,
{ "TFO", "gsm_abis_rsl.tfo",
FT_BOOLEAN, 8, TFS(&rsl_tfo_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_req_ref_ra,
{ "Random Access Information (RA)", "gsm_abis_rsl.req_ref_ra",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_req_ref_ra_est_cause,
{ "Channel Request Establishment Cause", "gsm_abis_rsl.req_ref_ra.est_cause",
FT_UINT8, BASE_CUSTOM, CF_FUNC(req_ref_ra_est_cause_convert), 0x0,
NULL, HFILL }
},
{ &hf_rsl_req_ref_T1prim,
{ "T1'", "gsm_abis_rsl.req_ref_T1prim",
FT_UINT8, BASE_DEC, NULL, 0xf8,
NULL, HFILL }
},
{ &hf_rsl_req_ref_T3,
{ "T3", "gsm_abis_rsl.req_ref_T3",
FT_UINT16, BASE_DEC, NULL, 0x07e0,
NULL, HFILL }
},
{ &hf_rsl_req_ref_T2,
{ "T2", "gsm_abis_rsl.req_ref_T2",
FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL }
},
{ &hf_rsl_req_ref_rfn,
{ "RFN", "gsm_abis_rsl.req_ref_rfn",
FT_UINT16, BASE_DEC, NULL, 0x0,
"Reduced Frame Number", HFILL }
},
{ &hf_rsl_timing_adv,
{ "Timing Advance", "gsm_abis_rsl.timing_adv",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_ho_ref,
{ "Hand-over reference", "gsm_abis_rsl.ho_ref",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_l1inf_power_lev,
{ "MS power level", "gsm_abis_rsl.ms_power_lev",
FT_UINT8, BASE_DEC, NULL, 0xf8,
NULL, HFILL }
},
{ &hf_rsl_l1inf_fpc,
{ "FPC/EPC", "gsm_abis_rsl.ms_fpc",
FT_BOOLEAN, 8, TFS(&tfs_inuse_not_inuse), 0x04,
NULL, HFILL }
},
{ &hf_rsl_l1inf_srr,
{ "SRR (SACCH Repetition)", "gsm_abis_rsl.srr",
FT_BOOLEAN, 8, TFS(&tfs_required_not_required), 0x02,
NULL, HFILL }
},
{ &hf_rsl_ms_power_lev,
{ "MS power level", "gsm_abis_rsl.ms_power_lev",
FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL }
},
{ &hf_rsl_ms_fpc,
{ "FPC/EPC", "gsm_abis_rsl.ms_fpc",
FT_BOOLEAN, 8, TFS(&tfs_inuse_not_inuse), 0x20,
NULL, HFILL }
},
{ &hf_rsl_act_timing_adv,
{ "Actual Timing Advance", "gsm_abis_rsl.act_timing_adv",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_dtxd,
{ "DTXd", "gsm_abis_rsl.dtxd",
FT_BOOLEAN, 8, TFS(&rsl_dtxd_vals), 0x40,
NULL, HFILL }
},
{ &hf_rsl_rxlev_full_up,
{ "RXLEV.FULL.up", "gsm_abis_rsl.rxlev_full_up",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gsm_a_rr_rxlev_vals_ext, 0x3f,
NULL, HFILL }
},
{ &hf_rsl_rxlev_sub_up,
{ "RXLEV.SUB.up", "gsm_abis_rsl.rxlev_sub_up",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &gsm_a_rr_rxlev_vals_ext, 0x3f,
NULL, HFILL }
},
{ &hf_rsl_rxqual_full_up,
{ "RXQUAL.FULL.up", "gsm_abis_rsl.rxqual_full_up",
FT_UINT8, BASE_DEC, VALS(gsm_a_rr_rxqual_vals), 0x38,
NULL, HFILL }
},
{ &hf_rsl_rxqual_sub_up,
{ "RXQUAL.SUB.up", "gsm_abis_rsl.rxqual_sub_up",
FT_UINT8, BASE_DEC, VALS(gsm_a_rr_rxqual_vals), 0x07,
NULL, HFILL }
},
{ &hf_rsl_acc_delay,
{ "Access Delay", "gsm_abis_rsl.acc_del",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_rach_slot_cnt,
{ "RACH Slot Count", "gsm_abis_rsl.rach_slot_cnt",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_rach_busy_cnt,
{ "RACH Busy Count", "gsm_abis_rsl.rach_busy_cnt",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_rach_acc_cnt,
{ "RACH Access Count", "gsm_abis_rsl.rach_acc_cnt",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_phy_ctx,
{ "Physical Context", "gsm_abis_rsl.phy_ctx",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_na,
{ "Not applicable (NA)", "gsm_abis_rsl.na",
FT_BOOLEAN, 8, TFS(&rsl_na_vals), 0x20,
NULL, HFILL }
},
{ &hf_rsl_ch_type,
{ "channel type", "gsm_abis_rsl.ch_type",
FT_UINT8, BASE_DEC, VALS(rsl_ch_type_vals), 0xc0,
NULL, HFILL }
},
{ &hf_rsl_prio,
{ "Priority", "gsm_abis_rsl.prio",
FT_UINT8, BASE_DEC, VALS(rsl_prio_vals), 0x18,
NULL, HFILL }
},
{ &hf_rsl_sapi,
{ "SAPI", "gsm_abis_rsl.sapi",
FT_UINT8, BASE_DEC, NULL, 0x07,
NULL, HFILL }
},
{ &hf_rsl_rbit,
{ "R", "gsm_abis_rsl.rbit",
FT_BOOLEAN, 8, TFS(&rsl_rbit_vals), 0x80,
NULL, HFILL }
},
{ &hf_rsl_a3a2,
{ "A3A2", "gsm_abis_rsl.a3a2",
FT_UINT8, BASE_DEC, VALS(rsl_a3a2_vals), 0x06,
NULL, HFILL }
},
{ &hf_rsl_a1_0,
{ "A1", "gsm_abis_rsl.a1_0",
FT_BOOLEAN, 8, TFS(&rsl_a1_0_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_a1_1,
{ "A1", "gsm_abis_rsl.a1_1",
FT_BOOLEAN, 8, TFS(&rsl_a1_1_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_a1_2,
{ "A1", "gsm_abis_rsl.a2_0",
FT_BOOLEAN, 8, TFS(&rsl_a1_2_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_epc_mode,
{ "EPC mode", "gsm_abis_rsl.epc_mode",
FT_BOOLEAN, 8, TFS(&rsl_epc_mode_vals), 0x20,
NULL, HFILL }
},
{ &hf_rsl_bs_fpc_epc_mode,
{ "FPC-EPC mode", "gsm_abis_rsl.fpc_epc_mode",
FT_BOOLEAN, 8, TFS(&rsl_fpc_epc_mode_vals), 0x10,
NULL, HFILL }
},
{ &hf_rsl_bs_power,
{ "Power Level", "gsm_abis_rsl.bs_power",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &rsl_rlm_bs_power_vals_ext, 0x0f,
NULL, HFILL }
},
{ &hf_rsl_cm_dtxd,
{ "DTXd", "gsm_abis_rsl.cm_dtxd",
FT_BOOLEAN, 8, TFS(&rsl_dtx_vals), 0x02,
NULL, HFILL }
},
{ &hf_rsl_cm_dtxu,
{ "DTXu", "gsm_abis_rsl.cm_dtxu",
FT_BOOLEAN, 8, TFS(&rsl_dtx_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_speech_or_data,
{ "Speech or data indicator", "gsm_abis_rsl.speech_or_data",
FT_UINT8, BASE_DEC, VALS(rsl_speech_or_data_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsl_ch_rate_and_type,
{ "Channel rate and type", "gsm_abis_rsl.ch_rate_and_type",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &rsl_ch_rate_and_type_vals_ext, 0x0,
NULL, HFILL }
},
{ &hf_rsl_speech_coding_alg,
{ "Speech coding algorithm", "gsm_abis_rsl.speech_coding_alg",
FT_UINT8, BASE_DEC, VALS(rsl_speech_coding_alg_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsl_t_nt_bit,
{ "Transparent indication", "gsm_abis_rsl.t_nt_bit",
FT_BOOLEAN, 8, TFS(&t_nt_bit_vals), 0x40,
NULL, HFILL }
},
{ &hf_rsl_ra_if_data_rte,
{ "Radio interface data rate", "gsm_abis_rsl.ra_if_data_rte",
FT_UINT8, BASE_DEC, VALS(rsl_ra_if_data_rte_vals), 0x3f,
NULL, HFILL }
},
{ &hf_rsl_data_rte,
{ "Data rate", "gsm_abis_rsl.data_rte",
FT_UINT8, BASE_DEC, VALS(rsl_ra_if_data_rte_vals), 0x3f,
NULL, HFILL }
},
{ &hf_rsl_alg_id,
{ "Algorithm Identifier", "gsm_abis_rsl.alg_id",
FT_UINT8, BASE_DEC, VALS(rsl_algorithm_id_vals), 0x0,
NULL, HFILL }
},
{ &hf_rsl_key,
{ "KEY", "gsm_abis_rsl.key",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_cause,
{ "Cause", "gsm_abis_rsl.cause",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &rsl_rlm_cause_vals_ext, 0x7f,
NULL, HFILL }
},
{ &hf_rsl_rel_mode,
{ "Release Mode", "gsm_abis_rsl.rel_mode",
FT_UINT8, BASE_DEC, VALS(rel_mode_vals), 0x01,
NULL, HFILL }
},
{ &hf_rsl_interf_band,
{ "Interf Band", "gsm_abis_rsl.interf_band",
FT_UINT8, BASE_DEC, NULL, 0xe0,
NULL, HFILL }
},
{ &hf_rsl_interf_band_reserved,
{ "Interf Band reserved bits", "gsm_abis_rsl.interf_band_reserved",
FT_UINT8, BASE_DEC, NULL, 0x1f,
NULL, HFILL }
},
{ &hf_rsl_meas_res_no,
{ "Measurement result number", "gsm_abis_rsl.meas_res_no",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_extension_bit,
{ "Extension", "gsm_abis_rsl.extension_bit",
FT_BOOLEAN, 8, TFS(&rsl_extension_bit_value), 0x80,
NULL, HFILL }},
{ &hf_rsl_class,
{ "Class", "gsm_abis_rsl.class",
FT_UINT8, BASE_DEC, VALS(rsl_class_vals), 0x70,
NULL, HFILL }
},
{ &hf_rsl_cause_value,
{ "Cause Value", "gsm_abis_rsl.cause_value",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &rsl_cause_value_vals_ext, 0x7f,
NULL, HFILL }
},
{ &hf_rsl_paging_grp,
{ "Paging Group", "gsm_abis_rsl.paging_grp",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_paging_load,
{ "Paging Buffer Space", "gsm_abis_rsl.paging_load",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_sys_info_type,
{ "System Info Type", "gsm_abis_rsl.sys_info_type",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &rsl_sys_info_type_vals_ext, 0x0,
NULL, HFILL }
},
{ &hf_rsl_timing_offset,
{ "Timing Offset", "gsm_abis_rsl.timing_offset",
FT_UINT8, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_ch_needed,
{ "Channel Needed", "gsm_abis_rsl.ch_needed",
FT_UINT8, BASE_DEC, VALS(rsl_ch_needed_vals), 0x03,
NULL, HFILL }
},
{ &hf_rsl_cbch_load_type,
{ "CBCH Load Type", "gsm_abis_rsl.cbch_load_type",
FT_BOOLEAN, 8, TFS(&rsl_cbch_load_type_vals), 0x80,
NULL, HFILL }
},
{ &hf_rsl_msg_slt_cnt,
{ "Message Slot Count", "gsm_abis_rsl.sg_slt_cnt",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL }
},
{ &hf_rsl_ch_ind,
{ "Channel Ind", "gsm_abis_rsl.ch_ind",
FT_UINT8, BASE_DEC, VALS(rsl_ch_ind_vals), 0x0f,
NULL, HFILL }
},
{ &hf_rsl_command,
{ "Command", "gsm_abis_rsl.cmd",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_emlpp_prio,
{ "eMLPP Priority", "gsm_abis_rsl.emlpp_prio",
FT_UINT8, BASE_DEC, VALS(rsl_emlpp_prio_vals), 0x07,
NULL, HFILL }
},
{ &hf_rsl_speech_mode_s,
{ "ip.access Speech Mode S", "gsm_abis_rsl.ipacc.speech_mode_s",
FT_UINT8, BASE_HEX, VALS(rsl_ipacc_spm_s_vals),
0xf, NULL, HFILL }
},
{ &hf_rsl_speech_mode_m,
{ "ip.access Speech Mode M", "gsm_abis_rsl.ipacc.speech_mode_m",
FT_UINT8, BASE_HEX, VALS(rsl_ipacc_spm_m_vals),
0xf0, NULL, HFILL }
},
{ &hf_rsl_conn_id,
{ "ip.access Connection ID", "gsm_abis_rsl.ipacc.conn_id",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }
},
{ &hf_rsl_rtp_payload,
{ "ip.access RTP Payload Type", "gsm_abis_rsl.ipacc.rtp_payload",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }
},
{ &hf_rsl_rtp_csd_fmt_d,
{ "ip.access RTP CSD Format D", "gsm_abis_rsl.ipacc.rtp_csd_fmt_d",
FT_UINT8, BASE_HEX, VALS(rsl_ipacc_rtp_csd_fmt_d_vals),
0x0f, NULL, HFILL },
},
{ &hf_rsl_rtp_csd_fmt_ir,
{ "ip.access RTP CSD Format IR", "gsm_abis_rsl.ipacc.rtp_csd_fmt_ir",
FT_UINT8, BASE_HEX, VALS(rsl_ipacc_rtp_csd_fmt_ir_vals),
0xf0, NULL, HFILL },
},
{ &hf_rsl_local_port,
{ "ip.access Local RTP Port", "gsm_abis_rsl.ipacc.local_port",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL },
},
{ &hf_rsl_remote_port,
{ "ip.access Remote RTP Port", "gsm_abis_rsl.ipacc.remote_port",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL },
},
{ &hf_rsl_local_ip,
{ "ip.access Local IP Address", "gsm_abis_rsl.ipacc.local_ip",
FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL },
},
{ &hf_rsl_remote_ip,
{ "ip.access Remote IP Address", "gsm_abis_rsl.ipacc.remote_ip",
FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL },
},
{ &hf_rsl_cstat_tx_pkts,
{ "Packets Sent", "gsm_abis_rsl.ipacc.cstat.tx_pkts",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }
},
{ &hf_rsl_cstat_tx_octs,
{ "Octets Sent", "gsm_abis_rsl.ipacc.cstat.tx_octets",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }
},
{ &hf_rsl_cstat_rx_pkts,
{ "Packets Received", "gsm_abis_rsl.ipacc.cstat.rx_pkts",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }
},
{ &hf_rsl_cstat_rx_octs,
{ "Octets Received", "gsm_abis_rsl.ipacc.cstat.rx_octets",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }
},
{ &hf_rsl_cstat_lost_pkts,
{ "Packets Lost", "gsm_abis_rsl.ipacc.cstat.lost_pkts",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }
},
{ &hf_rsl_cstat_ia_jitter,
{ "Inter-arrival Jitter", "gsm_abis_rsl.ipacc.cstat.ia_jitter",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }
},
{ &hf_rsl_cstat_avg_tx_dly,
{ "Average Tx Delay", "gsm_abis_rsl.ipacc.cstat.avg_tx_delay",
FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL }
},
/* Encapsulating paging messages into a packet EP2192796 - proprietor Huawei */
{ &hf_rsl_paging_spare,
{ "SPARE", "gsm_abis_rsl.paging_spare",
FT_UINT8, BASE_DEC, NULL, 0xf0,
NULL, HFILL }
},
{ &hf_rsl_paging_msg_no,
{ "Paging Msg Number", "gsm_abis_rsl.paging_msg_no",
FT_UINT8, BASE_DEC, NULL, 0x0f,
NULL, HFILL }
},
{ &hf_rsl_paging_package_ch_no,
{ "Channel Number Downlink CCCH (PCH + AGCH)", "gsm_abis_rsl.paging_package_ch_no",
FT_UINT8, BASE_DEC, NULL, 0xe0,
NULL, HFILL }
},
{ &hf_rsl_paging_package_ch_needed,
{ "Channel Needed", "gsm_abis_rsl.paging_package_ch_needed",
FT_UINT8, BASE_DEC, VALS(rsl_paging_ch_needed_vals), 0x18,
NULL, HFILL }
},
{ &hf_rsl_paging_emlpp_prio,
{ "eMLPP Priority", "gsm_abis_rsl.paging_emlpp_prio",
FT_UINT8, BASE_DEC, VALS(rsl_paging_emlpp_prio_vals), 0x07,
NULL, HFILL }
},
{ &hf_rsl_paging_type,
{ "Paging Type", "gsm_abis_rsl.paging_type",
FT_BOOLEAN, 8, TFS(&rsl_paging_type_vals), 0x80,
NULL, HFILL }
},
{ &hf_rsl_paging_group_cs,
{ "Paging Group", "gsm_abis_rsl.paging_group_cs",
FT_UINT8, BASE_DEC, NULL, 0x7f,
NULL, HFILL }
},
{ &hf_rsl_paging_group_empty_package,
{ "Empty package Paging Group", "gsm_abis_rsl.paging_group_empty_package",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL }
},
{ &hf_rsl_paging_group_ps_spare,
{ "PS Paging Group SPARE", "gsm_abis_rsl.paging_group_ps_spare",
FT_UINT8, BASE_DEC, NULL, 0x7f,
NULL, HFILL }
},
/* Physical Context */
{ &hf_rsl_phy_ctx_ie_id,
{ "Element identifier", "gsm_abis_rsl.phy_ctx_ie_id",
FT_UINT8, BASE_HEX_DEC|BASE_EXT_STRING, &rsl_phy_con_ie_vals_ext, 0x0,
NULL, HFILL }
},
{ &hf_rsl_phy_ctx_ext_rand_access,
{ "RandRef11bit", "gsm_abis_rsl.phy_ctx_ext_rand_access",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_rsl_phy_ctx_ab_rx_lvl,
{ "AB Rx Level", "gsm_abis_rsl.phy_ctx_ab_rx_lvl",
FT_UINT8, BASE_HEX_DEC, NULL, 0xff,
NULL, HFILL }
},
{ &hf_rsl_phy_ctx_ab_err_bits,
{ "Training Err Bits", "gsm_abis_rsl.phy_ctx_ab_err_bits",
FT_UINT8, BASE_HEX, NULL, 0xff,
NULL, HFILL }
},
{ &hf_rsl_phy_ctx_rx_lvl_ext,
{ "Rx Level Ext", "gsm_abis_rsl.phy_ctx_rx_lvl_ext",
FT_UINT8, BASE_HEX_DEC, NULL, 0xff,
NULL, HFILL }
},
{ &hf_rsl_cb_cmd_type,
{ "CB Command", "gsm_abis_rsl.cb_cmd_type.command",
FT_UINT8, BASE_HEX, VALS(rsl_cb_cmd_type_vals), 0xf0,
NULL, HFILL }
},
{ &hf_rsl_cb_def_bcast,
{ "CB Default Broadcast", "gsm_abis_rsl.cb_cmd_type.def_bcast",
FT_UINT8, BASE_HEX, VALS(rsl_cb_cmd_type_def_bcast_vals), 0x08,
NULL, HFILL }
},
{ &hf_rsl_cb_last_block,
{ "CB Last Block", "gsm_abis_rsl.cb_cmd_type.last_block",
FT_UINT8, BASE_HEX, VALS(rsl_cb_cmd_type_last_block_vals), 0x03,
NULL, HFILL }
},
{ &hf_rsl_etws_pn,
{ "ETWS Primary Notification", "gsm_abis_rsl.etws_pn",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }
},
{ &hf_rsl_osmo_rep_acch_rxqual,
{ "RxQual Threshold", "gsm_abis_rsl.osmo_rep_acch.rxqual",
FT_UINT8, BASE_DEC, VALS(gsm_a_rr_rxqual_vals), 0x70,
NULL, HFILL }
},
{ &hf_rsl_osmo_rep_acch_ul_sacch,
{ "Uplink SACCH", "gsm_abis_rsl.osmo_rep_acch.ul_sacch",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x08,
NULL, HFILL }
},
{ &hf_rsl_osmo_rep_acch_dl_sacch,
{ "Downlink SACCH", "gsm_abis_rsl.osmo_rep_acch.dl_sacch",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x04,
NULL, HFILL }
},
{ &hf_rsl_osmo_rep_acch_dl_facch_all,
{ "Downlink FACCH (all LDPDm message types)",
"gsm_abis_rsl.osmo_rep_acch.dl_facch_all",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x02,
NULL, HFILL }
},
{ &hf_rsl_osmo_rep_acch_dl_facch_cmd,
{ "Downlink FACCH (LAPDm commands only)",
"gsm_abis_rsl.osmo_rep_acch.dl_facch_cmd",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x01,
NULL, HFILL }
},
{ &hf_rsl_osmo_top_acch_val,
{ "Overpower value", "gsm_abis_rsl.osmo_top_acch.val",
FT_UINT8, BASE_DEC | BASE_UNIT_STRING, &units_decibels, 0x07,
NULL, HFILL }
},
{ &hf_rsl_osmo_top_acch_rxqual,
{ "Uplink RxQual threshold", "gsm_abis_rsl.osmo_top_acch.rxqual",
FT_UINT8, BASE_DEC, VALS(gsm_a_rr_rxqual_vals), 0x38,
NULL, HFILL }
},
{ &hf_rsl_osmo_top_acch_facch,
{ "FACCH Overpower", "gsm_abis_rsl.osmo_top_acch.facch",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x40,
NULL, HFILL }
},
{ &hf_rsl_osmo_top_acch_sacch,
{ "SACCH Overpower", "gsm_abis_rsl.osmo_top_acch.sacch",
FT_BOOLEAN, 8, TFS(&tfs_enabled_disabled), 0x80,
NULL, HFILL }
},
{ &hf_rsl_osmo_tsc_set,
{ "Training Sequence Set", "gsm_abis_rsl.osmo_tsc_set",
FT_UINT8, BASE_DEC, VALS(rsl_osmo_tsc_set_vals), 0,
NULL, HFILL }
},
{ &hf_rsl_osmo_tsc_val,
{ "Training Sequence Code", "gsm_abis_rsl.osmo_tsc_val",
FT_UINT8, BASE_DEC, NULL, 0,
NULL, HFILL }
},
{ &hf_rsl_osmo_osmux_cid,
{ "Osmux CID", "gsm_abis_rsl.osmo_osmux_cid",
FT_UINT8, BASE_DEC, NULL, 0,
NULL, HFILL }
},
/* Generated from convert_proto_tree_add_text.pl */
{ &hf_rsl_channel_description_tag, { "Channel Description Tag", "gsm_abis_rsl.channel_description_tag", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_mobile_allocation_tag, { "Mobile Allocation Tag", "gsm_abis_rsl.mobile_allocation_tag", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_mobile_allocation_len, { "Mobile Allocation Length", "gsm_abis_rsl.mobile_allocation_len", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_no_resources_required, { "0 No resources required(All other values are reserved)", "gsm_abis_rsl.no_resources_required", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_llsdu_ccch, { "Link Layer Service Data Unit (L3 Message)(CCCH)", "gsm_abis_rsl.llsdu.ccch", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_llsdu_sacch, { "Link Layer Service Data Unit (L3 Message)(SACCH)", "gsm_abis_rsl.llsdu.sacch", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_llsdu, { "Link Layer Service Data Unit (L3 Message)", "gsm_abis_rsl.llsdu", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_rach_supplementary_information, { "Supplementary Information", "gsm_abis_rsl.supplementary_information", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_full_immediate_assign_info_field, { "Full Immediate Assign Info field", "gsm_abis_rsl.full_immediate_assign_info_field", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_layer_3_message, { "Layer 3 message", "gsm_abis_rsl.layer_3_message", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_descriptive_group_or_broadcast_call_reference, { "Descriptive group or broadcast call reference", "gsm_abis_rsl.descriptive_group_or_broadcast_call_reference", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_group_channel_description, { "Group Channel Description", "gsm_abis_rsl.group_channel_description", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_uic, { "UIC", "gsm_abis_rsl.uic", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_rsl_codec_list, { "Codec List", "gsm_abis_rsl.codec_list", FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL }},
};
static gint *ett[] = {
&ett_rsl,
&ett_ie_link_id,
&ett_ie_act_type,
&ett_ie_bs_power,
&ett_ie_bs_power_params,
&ett_ie_ch_id,
&ett_ie_ch_mode,
&ett_ie_enc_inf,
&ett_ie_ch_no,
&ett_ie_frame_no,
&ett_ie_ho_ref,
&ett_ie_l1_inf,
&ett_ie_L3_inf,
&ett_ie_ms_id,
&ett_ie_ms_pow,
&ett_ie_ms_pow_params,
&ett_ie_phy_ctx,
&ett_ie_paging_grp,
&ett_ie_paging_load,
&ett_ie_access_delay,
&ett_ie_rach_load,
&ett_ie_req_ref,
&ett_ie_req_ref_ra,
&ett_ie_rel_mode,
&ett_ie_resource_inf,
&ett_ie_rlm_cause,
&ett_ie_staring_time,
&ett_ie_timing_adv,
&ett_ie_uplink_meas,
&ett_ie_full_imm_ass_inf,
&ett_ie_smscb_inf,
&ett_ie_ms_timing_offset,
&ett_ie_err_msg,
&ett_ie_full_bcch_inf,
&ett_ie_ch_needed,
&ett_ie_cb_cmd_type,
&ett_ie_smscb_mess,
&ett_ie_cbch_load_inf,
&ett_ie_smscb_ch_ind,
&ett_ie_grp_call_ref,
&ett_ie_ch_desc,
&ett_ie_nch_drx,
&ett_ie_cmd_ind,
&ett_ie_emlpp_prio,
&ett_ie_uic,
&ett_ie_main_ch_ref,
&ett_ie_multirate_conf,
&ett_ie_multirate_cntrl,
&ett_ie_sup_codec_types,
&ett_ie_codec_conf,
&ett_ie_rtd,
&ett_ie_tfo_status,
&ett_ie_llp_apdu,
&ett_ie_tfo_transp_cont,
&ett_ie_cause,
&ett_ie_meas_res_no,
&ett_ie_message_id,
&ett_ie_sys_info_type,
&ett_ie_speech_mode,
&ett_ie_conn_id,
&ett_ie_remote_ip,
&ett_ie_remote_port,
&ett_ie_local_port,
&ett_ie_local_ip,
&ett_ie_rtp_payload,
&ett_ie_paging_package,
&ett_ie_paging_package_number,
&ett_ie_paging_package_info,
&ett_ie_paging_package_ch_a_emlpp,
&ett_ie_paging_group_paras,
&ett_phy_ctx_ie,
&ett_phy_ctx_ie_ext_rand_access,
&ett_phy_ctx_ab_rx_lvl_err_bits,
&ett_phy_ctx_rxlvl_ext,
&ett_ie_etws_pn,
&ett_ie_osmo_rep_acch_cap,
&ett_ie_osmo_top_acch_cap,
&ett_ie_osmo_training_seq,
};
static ei_register_info ei[] = {
/* Generated from convert_proto_tree_add_text.pl */
{ &ei_rsl_speech_or_data_indicator, { "gsm_abis_rsl.speech_or_data_indicator.bad", PI_PROTOCOL, PI_WARN, "Speech or data indicator != 1,2 or 3", EXPFILL }},
{ &ei_rsl_facility_information_element_3gpp_ts_44071, { "gsm_abis_rsl.facility_information_element_3gpp_ts_44071", PI_PROTOCOL, PI_NOTE, "Facility Information Element as defined in 3GPP TS 44.071", EXPFILL }},
{ &ei_rsl_embedded_message_tfo_configuration, { "gsm_abis_rsl.embedded_message_tfo_configuration", PI_PROTOCOL, PI_NOTE, "Embedded message that contains the TFO configuration", EXPFILL }},
{ &ei_rsl_mobile_allocation_deprecated, { "gsm_abis_rsl.mobile_allocation_deprecated", PI_PROTOCOL, PI_NOTE,
"3GPP TS 24.008 Mobile Allocation IE shall for compatibility reasons "
"be included but empty (see 3GPP TS 48.058, section 9.3.5)", EXPFILL }},
};
module_t *rsl_module;
expert_module_t *expert_rsl;
#define RSL_ATT_TLVDEF(_attr, _type, _fixed_len) \
rsl_att_tlvdef.def[_attr].type = _type; \
rsl_att_tlvdef.def[_attr].fixed_len = _fixed_len; \
/* We register even the standard RSL IE TVLs here, not just the
* ip.access vendor specific elements. This is due to the fact that we
* don't have any formal specification for the ip.access RSL dialect,
* and this way any standard elements will be 'known' to the TLV
* parser, which can then gracefully skip over such elements and
* continue decoding the message. This will work even if the switch
* statement in dissct_rsl_ipaccess_msg() doesn't contain explicit code
* to decode them (yet?).
*/
RSL_ATT_TLVDEF(RSL_IE_CH_NO, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_LINK_ID, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_ACT_TYPE, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_BS_POW, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_CH_ID, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_CH_MODE, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_ENC_INF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_FRAME_NO, TLV_TYPE_FIXED, 2);
RSL_ATT_TLVDEF(RSL_IE_HO_REF, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_L1_INF, TLV_TYPE_FIXED, 2);
RSL_ATT_TLVDEF(RSL_IE_L3_INF, TLV_TYPE_TL16V, 0);
RSL_ATT_TLVDEF(RSL_IE_MS_ID, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_MS_POW, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_PAGING_GRP, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_PAGING_LOAD, TLV_TYPE_FIXED, 2);
RSL_ATT_TLVDEF(RSL_IE_PHY_CTX, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_ACCESS_DELAY, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_RACH_LOAD, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_REQ_REF, TLV_TYPE_FIXED, 3);
RSL_ATT_TLVDEF(RSL_IE_REL_MODE, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_RESOURCE_INF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_RLM_CAUSE, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_STARTING_TIME, TLV_TYPE_FIXED, 2);
RSL_ATT_TLVDEF(RSL_IE_TIMING_ADV, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_UPLINK_MEAS, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_CAUSE, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_MEAS_RES_NO, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_MESSAGE_ID, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_SYS_INFO_TYPE, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_MS_POWER_PARAM, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_BS_POWER_PARAM, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_PREPROC_PARAM, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_PREPROC_MEAS, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_ERR_MSG, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_FULL_BCCH_INF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_CH_NEEDED, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_CB_CMD_TYPE, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_SMSCB_MESS, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_FULL_IMM_ASS_INF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_CBCH_LOAD_INF, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_SMSCB_CH_IND, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_GRP_CALL_REF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_CH_DESC, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_NCH_DRX_INF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_CMD_IND, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_EMLPP_PRIO, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_UIC, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_MAIN_CH_REF, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_MULTIRATE_CONF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_MULTIRATE_CNTRL, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_SUP_CODEC_TYPES, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_CODEC_CONF, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_RTD, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_TFO_STATUS, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_LLP_APDU, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_IPAC_REMOTE_IP, TLV_TYPE_FIXED, 4);
RSL_ATT_TLVDEF(RSL_IE_IPAC_REMOTE_PORT, TLV_TYPE_FIXED, 2);
RSL_ATT_TLVDEF(RSL_IE_IPAC_LOCAL_IP, TLV_TYPE_FIXED, 4);
RSL_ATT_TLVDEF(RSL_IE_IPAC_CONN_STAT, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_IPAC_LOCAL_PORT, TLV_TYPE_FIXED, 2);
RSL_ATT_TLVDEF(RSL_IE_IPAC_SPEECH_MODE, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_IPAC_CONN_ID, TLV_TYPE_FIXED, 2);
RSL_ATT_TLVDEF(RSL_IE_IPAC_RTP_PAYLOAD2, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_IPAC_RTP_PAYLOAD, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_IPAC_RTP_CSD_FMT, TLV_TYPE_TV, 0);
RSL_ATT_TLVDEF(RSL_IE_OSMO_TRAINING_SEQUENCE, TLV_TYPE_TLV, 0);
RSL_ATT_TLVDEF(RSL_IE_OSMO_OSMUX_CID, TLV_TYPE_TLV, 0);
/* Register the protocol name and description */
proto_rsl = proto_register_protocol("Radio Signalling Link (RSL)", "RSL", "gsm_abis_rsl");
proto_register_field_array(proto_rsl, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_rsl = expert_register_protocol(proto_rsl);
expert_register_field_array(expert_rsl, ei, array_length(ei));
rsl_handle = register_dissector("gsm_abis_rsl", dissect_rsl, proto_rsl);
rsl_module = prefs_register_protocol(proto_rsl, NULL);
prefs_register_bool_preference(rsl_module, "use_ipaccess_rsl",
"Use nanoBTS definitions",
"Use ipaccess nanoBTS specific definitions for RSL",
&global_rsl_use_nano_bts);
prefs_register_bool_preference(rsl_module, "use_osmocom_rsl",
"Use Osmocom definitions",
"Use Osmocom specific definitions for RSL",
&global_rsl_use_osmo_bts);
prefs_register_bool_preference(rsl_module, "dissect_phy_ctx_inf",
"Decode Physical Context Information field",
"The Physical Context Information field is not specified "
"This information should be not be analysed by BSC, but merely "
"forwarded from one TRX/channel to another.",
&global_rsl_dissect_phy_ctx_inf);
}
void
proto_reg_handoff_rsl(void)
{
dissector_add_uint("lapd.gsm.sapi", LAPD_GSM_SAPI_RA_SIG_PROC, rsl_handle);
gsm_cbch_handle = find_dissector_add_dependency("gsm_cbch", proto_rsl);
gsm_cbs_handle = find_dissector_add_dependency("gsm_cbs", proto_rsl);
gsm_a_ccch_handle = find_dissector_add_dependency("gsm_a_ccch", proto_rsl);
gsm_a_dtap_handle = find_dissector_add_dependency("gsm_a_dtap", proto_rsl);
gsm_a_sacch_handle = find_dissector_add_dependency("gsm_a_sacch", proto_rsl);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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