diff options
Diffstat (limited to 'epan/dissectors/packet-gsm_bsslap.c')
| -rw-r--r-- | epan/dissectors/packet-gsm_bsslap.c | 974 |
1 files changed, 974 insertions, 0 deletions
diff --git a/epan/dissectors/packet-gsm_bsslap.c b/epan/dissectors/packet-gsm_bsslap.c new file mode 100644 index 00000000..6718f2da --- /dev/null +++ b/epan/dissectors/packet-gsm_bsslap.c @@ -0,0 +1,974 @@ +/* packet-gsm_bsslap.c + * Routines for Location Services (LCS) Serving Mobile Location Centre - Base Station System (SMLC-BSS) dissection + * Copyright 2008, Anders Broman <anders.broman[at]ericsson.com> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * SPDX-License-Identifier: GPL-2.0-or-later + * + * References: 3GPP TS 48.071 version 7.2.0 Release 7 + */ + +#include "config.h" + +#include <epan/packet.h> +#include <epan/expert.h> + +#include "packet-gsm_a_common.h" + +void proto_reg_handoff_gsm_bsslap(void); +void proto_register_gsm_bsslap(void); + +static dissector_handle_t bsslap_rrlp_handle = NULL; + +/* Initialize the protocol and registered fields */ +static int proto_gsm_bsslap = -1; +static int hf_gsm_bsslap_msg_type = -1; +int hf_gsm_a_bsslap_elem_id = -1; +static int hf_gsm_bsslap_ta = -1; +static int hf_gsm_bsslap_timer_value = -1; +static int hf_gsm_bsslap_ms_pow = -1; +static int hf_gsm_bsslap_cause = -1; +static int hf_gsm_bsslap_rrlp_flg = -1; +static int hf_gsm_bsslap_tfi = -1; +static int hf_gsm_bsslap_poll_rep = -1; +static int hf_gsm_bsslap_lac = -1; +static int hf_gsm_bsslap_cell_id_disc = -1; +static int hf_gsm_bsslap_encryption_key = -1; + +/* Initialize the subtree pointers */ +static int ett_gsm_bsslap = -1; +static int ett_bsslap_cell_list = -1; + +static expert_field ei_gsm_bsslap_missing_mandatory_element = EI_INIT; +static expert_field ei_gsm_bsslap_not_decoded_yet = EI_INIT; + +/* Table 5.1: Element Indentifier codes */ +#define BSSLAP_PARAM_TIMING_ADVANCE 0x01 +#define BSSLAP_PARAM_RESERVED_01 0x08 +#define BSSLAP_PARAM_CELL_IDENTITY 0x09 +#define BSSLAP_PARAM_RESERVED_02 0x0A +#define BSSLAP_PARAM_RESERVED_03 0x0B +#define BSSLAP_PARAM_RESERVED_04 0x0C +#define BSSLAP_PARAM_CHANNEL_DESCRIPTION 0x10 +#define BSSLAP_PARAM_RESERVED_05 0x11 +#define BSSLAP_PARAM_RESERVED_06 0x12 +#define BSSLAP_PARAM_RESERVED_07 0x13 +#define BSSLAP_PARAM_MEASUREMENT_REPORT 0x14 +#define BSSLAP_PARAM_RESERVED_08 0x15 +#define BSSLAP_PARAM_CAUSE 0x18 +#define BSSLAP_PARAM_RRLP_FLAG 0x19 +#define BSSLAP_PARAM_RRLP_IE 0x1B +#define BSSLAP_PARAM_CELL_IDENTITY_LIST 0x1C +#define BSSLAP_PARAM_ENHANCED_MEASUREMENT_REPORT 0x1D +#define BSSLAP_PARAM_LOCATION_AREA_CODE 0x1E +#define BSSLAP_PARAM_FREQUENCY_LIST 0x21 +#define BSSLAP_PARAM_MS_POWER 0x22 +#define BSSLAP_PARAM_DELTA_TIMER 0x23 +#define BSSLAP_PARAM_SERVING_CELL_IDENTIFIER 0x24 +#define BSSLAP_PARAM_ENCRYPTION_KEY 0x25 +#define BSSLAP_PARAM_CIPHER_MODE_SETTING 0x26 +#define BSSLAP_PARAM_CHANNEL_MODE 0x27 +#define BSSLAP_PARAM_MULTIRATE_CONFIGURATION 0x28 +#define BSSLAP_PARAM_POLLING_REPETITION 0x29 +#define BSSLAP_PARAM_PACKET_CHANNEL_DESCRIPTION 0x2A +#define BSSLAP_PARAM_TLLI 0x2B +#define BSSLAP_PARAM_TFI 0x2C +#define BSSLAP_PARAM_STARTING_TIME 0x2D + +static const value_string gsm_bsslap_elem_strings[] = { + { DE_BLAP_RES1, "Reserved" }, + { DE_BLAP_TA, "Timing Advance" }, + { DE_BLAP_RES3, "Reserved" }, /* (note) */ + { DE_BLAP_RES4, "Cell Identity" }, + { DE_BLAP_RES5, "Reserved" }, /* (note) */ + { DE_BLAP_RES6, "Reserved" }, /* (note) */ + { DE_BLAP_RES7, "Reserved" }, /* (note) */ + { DE_BLAP_CH_DESC, "Channel Description" }, + { DE_BLAP_RES9, "Reserved" }, /* (note) */ + { DE_BLAP_RES10, "Reserved" }, /* (note) */ + { DE_BLAP_RES11, "Reserved" }, /* (note) */ + { DE_BLAP_MEAS_REP, "Measurement Report" }, + { DE_BLAP_RES13, "Reserved" }, /* (note) */ + { DE_BLAP_CAUSE, "Cause" }, + { DE_BLAP_RRLP_FLG, "RRLP Flag" }, + { DE_BLAP_RRLP_IE, "RRLP IE" }, + { DE_BLAP_CELL_ID_LIST, "Cell Identity List" }, + { DE_BLAP_ENH_MEAS_REP, "Enhanced Measurement Report" }, + { DE_BLAP_LAC, "Location Area Code" }, + { DE_BLAP_FREQ_LIST, "Frequency List" }, + { DE_BLAP_MS_POW, "MS Power" }, + { DE_BLAP_DELTA_TIME, "Delta Timer" }, + { DE_BLAP_SERV_CELL_ID, "Serving Cell Identifier" }, + { DE_BLAP_ENC_KEY, "Encryption Key (Kc)" }, + { DE_BLAP_CIP_M_SET, "Cipher Mode Setting" }, + { DE_BLAP_CH_MODE, "Channel Mode" }, + { DE_BLAP_POLL_REP, "Polling Repetition" }, + { DE_BLAP_PKT_CH_DESC, "Packet Channel Description" }, + { DE_BLAP_TLLI, "TLLI" }, + { DE_BLAP_TFI, "TFI" }, + { DE_BLAP_START_TIME, "Starting Time" }, + { 0, NULL }, +}; +value_string_ext gsm_bsslap_elem_strings_ext = VALUE_STRING_EXT_INIT(gsm_bsslap_elem_strings); + +/* + * NOTE: These values of the codepoints shall not be used as they were used in an earlier version of the + * protocol. + * All unassigned codes are spare. + */ + + +#define BSSLAP_TA_REQUEST 1 +#define BSSLAP_TA_RESPONSE 2 +#define BSSLAP_REJECT 10 +#define BSSLAP_RESET 11 +#define BSSLAP_ABORT 12 +#define BSSLAP_TA_LAYER3 13 +#define BSSLAP_MS_POS_CMD 15 +#define BSSLAP_MS_POS_RES 16 +#define BSSLAP_U_TDOA_REQ 17 +#define BSSLAP_U_TDOA_RES 18 + +/* Table 5.1.1: Message Type codes */ +static const value_string gsm_a_bsslap_msg_strings[] = { + { 0x00, "Reserved" }, + { BSSLAP_TA_REQUEST, "TA REQUEST" }, + { BSSLAP_TA_RESPONSE, "TA RESPONSE" }, + { 0x04, "Reserved" }, + { 0x05, "Reserved" }, + { BSSLAP_REJECT, "REJECT" }, + { BSSLAP_RESET, "RESET" }, + { BSSLAP_ABORT, "ABORT" }, + { BSSLAP_TA_LAYER3, "TA LAYER3" }, + { BSSLAP_MS_POS_CMD, "MS Position Command" }, + { BSSLAP_MS_POS_RES, "MS Position Response" }, + { BSSLAP_U_TDOA_REQ, "U-TDOA Request" }, + { BSSLAP_U_TDOA_RES, "U-TDOA Response" }, + { 0, NULL } +}; + +#define NUM_GSM_BSSLAP_ELEM (sizeof(gsm_bsslap_elem_strings)/sizeof(value_string)) +gint ett_gsm_bsslap_elem[NUM_GSM_BSSLAP_ELEM]; + +/* + * 5.2 Timing Advance IE + */ +static guint16 +de_ta(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_ta, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} +/* + * 5.12 Measurement Report IE + */ +#if 0 +static guint16 +de_meas_rep(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_expert(tree, pinfo, &ei_gsm_bsslap_not_decoded_yet, tvb, curr_offset, len); + + + return(len); +} +#endif +/* + * 5.14 Cause IE + */ +static const value_string gsm_bsslap_cause_vals[] = { + { 0x00, "Congestion" }, + { 0x01, "Channel Mode not supported" }, + { 0x02, "Positioning procedure not supported" }, + { 0x03, "Failure for other radio related events" }, + { 0x04, "Intra-BSS handover" }, + { 0x05, "Supervision Timer Expired" }, + { 0x06, "Inter-BSS handover" }, + { 0x07, "Loss of signalling connection to MS" }, + { 0x08, "Incorrect serving cell identity" }, + { 0x09, "BSSAP-LE Segmentation error" }, + { 0, NULL } +}; + +static guint16 +de_bsslap_cause(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_cause, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} +/* + * 5.15 RRLP Flag IE + */ +static const true_false_string gsm_bsslap_rrlp_flg_vals = { + "Not a Positioning Command or final response." , + "Position Command (SMLC to BSC) or final response (BSC to SMLC)" +}; +static guint16 +de_rrlp_flg(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_rrlp_flg, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} +static guint16 +de_rrlp_ie(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + tvbuff_t *rrlp_tvb; + guint16 length; + + length = tvb_get_ntohs(tvb, offset); + + curr_offset = offset + 2; + if (length > 0) + { + rrlp_tvb = tvb_new_subset_length(tvb, curr_offset, length); + if (bsslap_rrlp_handle) + call_dissector(bsslap_rrlp_handle, rrlp_tvb, pinfo, tree); + } + + curr_offset += length; + return(curr_offset - offset); +} +/* + * 5.17 Cell Identity List IE + */ +/* + * The Cell identification discriminator i is coded as follows: + */ +static const value_string gsm_a_bsslap_cell_id_disc_vals[] = { + { 0x0, "The whole Cell Global Identification, CGI, is used to identify the 2G cells" }, + { 0x1, "Location Area Code, LAC, and Cell Identify, CI, are used to identify the 2G cells" }, + { 0x2, "3G Cell identification container 1" }, + { 0x3, "3G Cell identification container 2" }, + { 0, NULL } +}; + + + +static guint16 +de_cell_id_list(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + guint8 consumed; + guint8 cell_id_disc; + guint8 num_cells; + proto_item *item = NULL; + proto_tree *subtree = NULL; + + curr_offset = offset; + cell_id_disc = tvb_get_guint8(tvb,curr_offset); + num_cells = 0; + + while(len>0){ + num_cells++; + consumed = 0; + subtree = proto_tree_add_subtree_format(tree, tvb, curr_offset, -1, ett_bsslap_cell_list, &item, "Cell %u", num_cells); + + if (add_string) + add_string[0] = '\0'; + proto_tree_add_item(subtree, hf_gsm_bsslap_cell_id_disc, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + len--; + switch(cell_id_disc){ + case 0: + /* The whole Cell Global Identification, CGI, is used to identify the 2G cells. */ + consumed+= be_cell_id_aux(tvb, subtree, pinfo, curr_offset, len, NULL, 0, 0); + break; + case 1: + /* Location Area Code, LAC, and Cell Identify, CI, are used to identify the 2G cells. */ + consumed+= be_cell_id_aux(tvb, subtree, pinfo, curr_offset, len, NULL, 0, 1); + break; + case 2: + /* 3G Cell identification container 1 */ + /* fall trough */ + case 3: + /* 3G Cell identification container 2 */ + /* fall trough */ + default: + proto_tree_add_expert(subtree, pinfo, &ei_gsm_bsslap_not_decoded_yet, tvb, curr_offset, len); + consumed = len; + break; + } + curr_offset += consumed; + len-=consumed; + /* lengt is "cell id" + discriminator */ + proto_item_set_len(item, consumed+1); + } + + + return(curr_offset - offset); +} +/* + * 5.18 Enhanced Measurement Report IE + * The Enhanced Measurement Results field is encoded as the contents of the + * ENHANCED MEASUREMENT REPORT message in 3GPP TS 44.018 (excluding the fields: + * "RR short PD", "Message type" and "Short layer 2 header")... + */ +static guint16 +de_enh_meas_rep(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_expert(tree, pinfo, &ei_gsm_bsslap_not_decoded_yet, tvb, curr_offset, len); + + + return(len); +} +/* + * 5.19 Location Area Code IE + */ +static guint16 +de_lac(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_lac, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} +/* + * 5.21 MS Power IE + */ +static guint16 +de_ms_pow(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_ms_pow, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} + +/* + * 5.22 Delta Timer IE + */ +static guint16 +de_delta_time(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_timer_value, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} +/* + * 5.23 Serving Cell Identifier IE + * The Serving Cell Identifier IE is encoded as in 3GPP TS 48.008 (excluding IEI and length field). + */ +/* + * 5.24 Encryption Key + */ +static guint16 +de_blap_enc_key(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_encryption_key, tvb, curr_offset, 8, ENC_NA); + curr_offset = curr_offset + 8; + + return(curr_offset - offset); +} +/* + * 5.25 Cipher Mode Setting IE + * The Cipher Mode Setting information element is coded as defined in TS 44.018 (excluding IEI). + */ +/* + * 5.26 Channel Mode IE + * The Channel Mode information element is coded as defined in TS 44.018 (excluding IEI). + */ +/* + * 5.27 MultiRate Configuration IE + * The MultiRate Configuration information element is coded as defined in TS 44.018 (excluding IEI). + */ +/* + * 5.28 Polling Repetition IE + */ +static guint16 +de_poll_rep(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_poll_rep, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} +/* + * 5.29 Packet Channel Description IE + * CSN.1 binary representation of the channel parameters as + * described in TS 44.018 (CCCH) or TS 44.060 (PCCCH) plus + * padding bits (binary 0) as required to achieve 4 complete octets + */ +static guint16 +de_pkt_ch_desc(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint32 offset, guint len, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_expert(tree, pinfo, &ei_gsm_bsslap_not_decoded_yet, tvb, curr_offset, len); + + + return(len); +} +/* + * 5.31 TFI IE + * The TFI information element is coded as defined in TS 44.060 (excluding IEI). + * 44.060: + * UPLINK_TFI (5 bit field) + * The Temporary Flow Identity field identifies an uplink Temporary Block Flow (TBF). + * This field is encoded as a binary number. Range 0 to 31 + */ +static guint16 +de_tfi(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo _U_, guint32 offset, guint len _U_, gchar *add_string _U_, int string_len _U_) +{ + guint32 curr_offset; + + curr_offset = offset; + proto_tree_add_item(tree, hf_gsm_bsslap_tfi, tvb, curr_offset, 1, ENC_BIG_ENDIAN); + curr_offset++; + + return(curr_offset - offset); +} + +/* +This enum has been moved to packet-gsm_a_common to +make it possible to use element dissecton from this dissector +in other dissectors. +It is left here as a comment for easier reference. + +Note this enum must be of the same size as the element decoding list + +typedef enum +{ + /. BSS LAP Elements 5 ./ + DE_BLAP_RES1, /. Reserved ./ + DE_BLAP_TA, /. Timing Advance ./ + DE_BLAP_RES3, /. Reserved ./ /. (note) ./ + DE_BLAP_RES4, /. Cell Identity ./ + DE_BLAP_RES5, /. Reserved ./ /. (note) ./ + DE_BLAP_RES6, /. Reserved ./ /. (note) ./ + DE_BLAP_RES7, /. Reserved ./ /. (note) ./ + DE_BLAP_CH_DESC, /. Channel Description ./ + DE_BLAP_RES9, /. Reserved ./ /. (note) ./ + DE_BLAP_RES10, /. Reserved ./ /. (note) ./ + DE_BLAP_RES11, /. Reserved ./ /. (note) ./ + DE_BLAP_MEAS_REP, /. Measurement Report ./ + DE_BLAP_RES13, /. Reserved ./ /. (note) ./ + DE_BLAP_CAUSE, /. Cause ./ + DE_BLAP_RRLP_FLG, /. RRLP Flag ./ + DE_BLAP_RRLP_IE, /. RRLP IE ./ + DE_BLAP_CELL_ID_LIST, /. Cell Identity List ./ + DE_BLAP_ENH_MEAS_REP, /. Enhanced Measurement Report ./ + DE_BLAP_LAC, /. Location Area Code ./ + DE_BLAP_FREQ_LIST, /. Frequency List ./ + DE_BLAP_MS_POW, /. MS Power ./ + DE_BLAP_DELTA_TIME, /. Delta Timer ./ + DE_BLAP_SERV_CELL_ID, /. Serving Cell Identifier ./ + DE_BLAP_ENC_KEY, /. Encryption Key (Kc) ./ + DE_BLAP_CIP_M_SET, /. Cipher Mode Setting ./ + DE_BLAP_CH_MODE, /. Channel Mode ./ + DE_BLAP_POLL_REP, /. Polling Repetition ./ + DE_BLAP_PKT_CH_DESC, /. Packet Channel Description ./ + DE_BLAP_TLLI, /. TLLI ./ + DE_BLAP_TFI, /. TFI ./ + DE_BLAP_START_TIME, /. Starting Time ./ + BSSLAP_NONE /. NONE ./ +} +bsslap_elem_idx_t; +*/ +elem_fcn bsslap_elem_fcn[] = { + /* BSS LAP Elements 5 */ + NULL, /* Reserved */ + de_ta, /* Timing Advance */ + NULL, /* Reserved */ /* (note) */ + NULL, /* "Cell Identity */ + NULL, /* "Reserved */ /* (note) */ + NULL, /* "Reserved */ /* (note) */ + NULL, /* "Reserved */ /* (note) */ + NULL, /* "Channel Description */ + NULL, /* "Reserved */ /* (note) */ + NULL, /* Reserved */ /* (note) */ + NULL, /* Reserved */ /* (note) */ + de_rr_meas_res, /* "Measurement Report */ + NULL, /* "Reserved */ /* (note) */ + de_bsslap_cause, /* "Cause */ + de_rrlp_flg, /* "RRLP Flag */ + de_rrlp_ie, /* "RRLP IE */ + de_cell_id_list, /* "Cell Identity List */ + de_enh_meas_rep, /* Enhanced Measurement Report */ + de_lac, /* "Location Area Code */ + NULL, /* "Frequency List */ + de_ms_pow, /* MS Power */ + de_delta_time, /* Delta Timer */ + NULL, /* Serving Cell Identifier */ + de_blap_enc_key, /* Encryption Key (Kc) */ + NULL, /* Cipher Mode Setting */ + NULL, /* Channel Mode */ + de_poll_rep, /* Polling Repetition */ + de_pkt_ch_desc, /* Packet Channel Description */ + NULL, /* TLLI */ + de_tfi, /* TFI */ + NULL, /* Starting Time */ + NULL, /* NONE */ +}; + +#define NUM_GSM_BSSLAP_MSG (sizeof(gsm_a_bsslap_msg_strings)/sizeof(value_string)) +static gint ett_gsm_bsslap_msg[NUM_GSM_BSSLAP_MSG]; + +/* 4.2.2 TA Response ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_ta_res(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* Cell Identity IE / 5.4 M TV 3 */ + ELEM_MAND_TV(BSSLAP_PARAM_CELL_IDENTITY, GSM_A_PDU_TYPE_COMMON, DE_CELL_ID, "Serving Cell Identity", ei_gsm_bsslap_missing_mandatory_element); + /* Timing Advance IE / 5.2 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_TIMING_ADVANCE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_TA, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Measurement Report IE / 5.12 O TLV 18 */ + ELEM_OPT_TLV(BSSLAP_PARAM_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_MEAS_REP, " BSSLAP"); + /* Enhanced Measurement Report IE / 5.18 O TLV 4-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_ENHANCED_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_ENH_MEAS_REP, NULL); + /* Cell Identity List IE / 5.17 O TLV 6-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_CELL_IDENTITY_LIST, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CELL_ID_LIST, "-Measured Cell"); + + return; + +} + + +/* 4.2.3 (void) ETSI TS 148 071 V7.2.0 (2007-06) */ +/* 4.2.4 (void) ETSI TS 148 071 V7.2.0 (2007-06) */ +/* 4.2.5 Reject ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_reject(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* Cause IE / 5.14 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_CAUSE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CAUSE, NULL, ei_gsm_bsslap_missing_mandatory_element); + + return; +} + +/* 4.2.6 Reset ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_reset(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* Cell Identity IE / 5.4 M TV 3 */ + ELEM_MAND_TV(BSSLAP_PARAM_CELL_IDENTITY, GSM_A_PDU_TYPE_COMMON, DE_CELL_ID, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Timing Advance IE / 5.2 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_TIMING_ADVANCE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_TA, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Channel Description IE / 5.8 M TV 4 */ + ELEM_MAND_TV(BSSLAP_PARAM_CHANNEL_DESCRIPTION,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Cause IE / 5.1 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_CAUSE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CAUSE, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Measurement Report Measurement Report IE / 5.12 O TLV 18 */ + ELEM_OPT_TLV(BSSLAP_PARAM_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_MEAS_REP, " BSSLAP"); + /* Enhanced Measurement Report Enhanced Measurement Report IE / 5.18 O TLV 4-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_ENHANCED_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_ENH_MEAS_REP, NULL); + /* Cell Identity List IE / 5.17 O TLV 6-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_CELL_IDENTITY_LIST, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CELL_ID_LIST, "-Measured Cell"); + /* LAC Location Area Code IE / 5.19 O TV 3 */ + ELEM_OPT_TLV(BSSLAP_PARAM_LOCATION_AREA_CODE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_LAC, NULL); + /* Frequency List Frequency List IE 5.20 C (note 1) TLV 3-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_FREQUENCY_LIST, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, NULL); + /* Channel Mode IE 5.26 C (notes 2 & 4) TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_CHANNEL_MODE, GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, NULL); + /* MultiRate Configuration 5.27 C (notes 3 & 4) TLV 4-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_MULTIRATE_CONFIGURATION, GSM_A_PDU_TYPE_RR, DE_RR_MULTIRATE_CONF, NULL); + /* Packet Channel Description Packet Channel Description IE 5.29 C (note 5) TV 4 */ + ELEM_OPT_TLV(BSSLAP_PARAM_PACKET_CHANNEL_DESCRIPTION, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_PKT_CH_DESC, NULL); + /* TLLI IE 5.30 C (note 5) TV 5 */ + ELEM_OPT_TV(BSSLAP_PARAM_TLLI, GSM_A_PDU_TYPE_RR, DE_RR_TLLI,NULL); + /* TFI 5.31 C (note 5) TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_TFI, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_TFI,NULL); + /* Starting Time IE 5.32 C (note 5) TV 3 */ + ELEM_OPT_TV(BSSLAP_PARAM_STARTING_TIME, GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, "TBF Starting Time"); + /* Encryption Key IE 5.24 C (note 4) TV 9 */ + ELEM_OPT_TV(BSSLAP_PARAM_ENCRYPTION_KEY, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_ENC_KEY,NULL); + /* Cipher Mode Setting IE 5.25 C (note 4) TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_CIPHER_MODE_SETTING, GSM_A_PDU_TYPE_RR, DE_RR_CIP_MODE_SET, NULL); + return; +} + +/* 4.2.7 Abort ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_abort(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* Cause IE / 5.14 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_CAUSE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CAUSE, NULL, ei_gsm_bsslap_missing_mandatory_element); + + return; +} +/* 4.2.8 TA Layer3 ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_ta_layer3(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* Timing Advance IE / 5.2 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_TIMING_ADVANCE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_TA, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Measurement Report IE / 5.12 O TLV 18 */ + ELEM_OPT_TLV(BSSLAP_PARAM_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_MEAS_REP, " BSSLAP"); + /* Enhanced Measurement Report IE / 5.18 O TLV 4-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_ENHANCED_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_ENH_MEAS_REP, NULL); + /*Cell Identity List IE / 5.17 O TLV 6-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_CELL_IDENTITY_LIST, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CELL_ID_LIST, "-Measured Cell"); + return; +} +/* 4.2.9 MS Position Command ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_ms_pos_cmd(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* RRLP flag IE / 5.15 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_RRLP_FLAG, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_RRLP_FLG, "flag", ei_gsm_bsslap_missing_mandatory_element); + /* RRLP IE / 5.16 M TLV 3-n */ + ELEM_MAND_TV(BSSLAP_PARAM_RRLP_IE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_RRLP_IE, "RRLP Info", ei_gsm_bsslap_missing_mandatory_element); + return; +} +/* 4.2.10 MS Position Response ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_ms_pos_res(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* flag RRLP flag IE / 5.15 M TV 2 */ + ELEM_MAND_TV(BSSLAP_PARAM_RRLP_FLAG, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_RRLP_FLG, "flag", ei_gsm_bsslap_missing_mandatory_element); + /* RRLP Info RRLP IE / 5.16 M TLV 3-n */ + ELEM_MAND_TV(BSSLAP_PARAM_RRLP_IE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_RRLP_IE, "RRLP Info", ei_gsm_bsslap_missing_mandatory_element); + /* Timing Advance IE / 5.2 O TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_TIMING_ADVANCE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_TA, NULL); + /* Measurement Report IE / 5.12 O TLV 18 */ + ELEM_OPT_TLV(BSSLAP_PARAM_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_MEAS_REP, " BSSLAP"); + /* Enhanced Measurement Report IE / 5.18 O TLV 4-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_ENHANCED_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_ENH_MEAS_REP, NULL); + /* Cell Identity List IE / 5.17 O TLV 6-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_CELL_IDENTITY_LIST, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CELL_ID_LIST, "-Measured Cell"); + return; +} +/* 4.2.11 U-TDOA Request ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_u_tdoa_req(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* Delta Timer IE 5.22 O (note 1) TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_DELTA_TIMER, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_DELTA_TIME, NULL); + /* Polling Repitition IE 5.28 (note) C (note 2) TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_POLLING_REPETITION, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_POLL_REP, NULL); + + return; +} +/* 4.2.12 U-TDOA Response ETSI TS 148 071 V7.2.0 (2007-06) */ +static void +dissect_gsm_bsslap_u_tdoa_res(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, int offset) +{ + guint32 curr_offset; + guint32 consumed; + guint curr_len; + + curr_offset = offset; + curr_len = tvb_reported_length_remaining(tvb,offset); + + /* Channel Description IE 5.8 M TV 4 */ + ELEM_MAND_TV(BSSLAP_PARAM_CHANNEL_DESCRIPTION,GSM_A_PDU_TYPE_RR, DE_RR_CH_DSC, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Serving Cell Identifier Cell Identifier IE 5.23 M TLV 4-n */ + ELEM_MAND_TLV(BSSLAP_PARAM_SERVING_CELL_IDENTIFIER,GSM_A_PDU_TYPE_BSSMAP, BE_CELL_ID, NULL, ei_gsm_bsslap_missing_mandatory_element); + /* Frequency List IE 5.20 C (note 3) TLV 3-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_FREQUENCY_LIST, GSM_A_PDU_TYPE_RR, DE_RR_FREQ_LIST, NULL); + /* Timing Advance IE 5.2 O TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_TIMING_ADVANCE, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_TA, NULL); + /* MS Power IE 5.21 O TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_MS_POWER, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_MS_POW, NULL); + /* Measurement Report IE 5.12 O TLV 18 */ + ELEM_OPT_TLV(BSSLAP_PARAM_MEASUREMENT_REPORT, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_MEAS_REP, " BSSLAP"); + /* Encryption Key IE 5.24 C (note 4) TV 9 */ + ELEM_OPT_TV(BSSLAP_PARAM_ENCRYPTION_KEY, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_ENC_KEY, NULL); + /* Cipher Mode Setting IE 5.25 C (note 4) TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_CIPHER_MODE_SETTING, GSM_A_PDU_TYPE_RR, DE_RR_CIP_MODE_SET, NULL); + /* Channel Mode IE 5.26 C (notes 1 & 4)TV 2 */ + ELEM_OPT_TV(BSSLAP_PARAM_CHANNEL_MODE, GSM_A_PDU_TYPE_RR, DE_RR_CH_MODE, NULL); + /* MultiRate Configuration IE 5.27 C (notes 1 & 4)TLV 4-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_MULTIRATE_CONFIGURATION, GSM_A_PDU_TYPE_RR, DE_RR_MULTIRATE_CONF, NULL); + /* Cell Identity List IE / 5.17 O TLV 6-n */ + ELEM_OPT_TLV(BSSLAP_PARAM_CELL_IDENTITY_LIST, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_CELL_ID_LIST, "-Measured Cell"); + /* Packet Channel Description IE 5.29 C (note 5) TV 4 */ + ELEM_OPT_TLV(BSSLAP_PARAM_PACKET_CHANNEL_DESCRIPTION, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_PKT_CH_DESC, NULL); + /* TLLI IE 5.30 C (note 5) TV 5 */ + ELEM_OPT_TV(BSSLAP_PARAM_TLLI, GSM_A_PDU_TYPE_RR, DE_RR_TLLI, NULL); + /* TFI IE 5.31 C (note 5) TV 2 BSSLAP_PARAM_TFI*/ + ELEM_OPT_TV(BSSLAP_PARAM_TFI, GSM_A_PDU_TYPE_BSSLAP, DE_BLAP_TFI, NULL); + /* Starting Time IE 5.32 C (note 5) TV 3*/ + ELEM_OPT_TV(BSSLAP_PARAM_STARTING_TIME, GSM_A_PDU_TYPE_RR, DE_RR_STARTING_TIME, "TBF Starting Time"); + return; +} + + +static int +dissect_gsm_bsslap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) +{ + proto_item *item; + proto_tree *sub_tree; + int offset=0; + guint8 octet; + +/* Make entries in Protocol column and Info column on summary display */ + col_append_str(pinfo->cinfo, COL_PROTOCOL, "/BSSLAP"); + if (tree) { + octet = tvb_get_guint8(tvb, offset); + item = proto_tree_add_item(tree, proto_gsm_bsslap, tvb, 0, -1, ENC_NA); + sub_tree = proto_item_add_subtree(item, ett_gsm_bsslap); + + /* Message Type IE / 5.1 M V 1 */ + proto_tree_add_item(sub_tree, hf_gsm_bsslap_msg_type, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + switch (octet){ + case BSSLAP_TA_REQUEST: + /* Only message type IE */ + break; + case BSSLAP_TA_RESPONSE: + dissect_gsm_bsslap_ta_res(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_REJECT: + dissect_gsm_bsslap_reject(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_RESET: + dissect_gsm_bsslap_reset(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_ABORT: + dissect_gsm_bsslap_abort(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_TA_LAYER3: + dissect_gsm_bsslap_ta_layer3(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_MS_POS_CMD: + dissect_gsm_bsslap_ms_pos_cmd(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_MS_POS_RES: + dissect_gsm_bsslap_ms_pos_res(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_U_TDOA_REQ: + dissect_gsm_bsslap_u_tdoa_req(tvb, sub_tree, pinfo, offset); + break; + case BSSLAP_U_TDOA_RES: + dissect_gsm_bsslap_u_tdoa_res(tvb, sub_tree, pinfo, offset); + break; + default: + break; + } + } + + return tvb_captured_length(tvb); +} + +void +proto_reg_handoff_gsm_bsslap(void) +{ + bsslap_rrlp_handle = find_dissector_add_dependency("rrlp", proto_gsm_bsslap); +} + +void +proto_register_gsm_bsslap(void) +{ + guint i; + guint last_offset; + + + /* Setup list of header fields */ + static hf_register_info hf[] = { + { &hf_gsm_bsslap_msg_type, + { "Message Type IE", "gsm_bsslap.msg_type", + FT_UINT8, BASE_DEC, VALS(gsm_a_bsslap_msg_strings), 0x0, + NULL, HFILL } + }, + { &hf_gsm_a_bsslap_elem_id, + { "Element ID", "gsm_bsslap.elem_id", + FT_UINT8, BASE_HEX, NULL, 0, + NULL, HFILL } + }, + { &hf_gsm_bsslap_ta, + { "Timing Advance", "gsm_bsslap.ta", + FT_UINT8, BASE_HEX, NULL, 0x0, + NULL, HFILL } + }, + { &hf_gsm_bsslap_timer_value, + {"Timer Value", "gsm_bsslap.timerValue", + FT_UINT8, BASE_DEC, NULL, 0x0, + NULL, HFILL } + }, + + { &hf_gsm_bsslap_ms_pow, + {"MS Power", "gsm_bsslap.MS_pow", + FT_UINT8, BASE_DEC, NULL, 0x0, + NULL, HFILL } + }, + { &hf_gsm_bsslap_cause, + {"Cause", "gsm_bsslap.cause", + FT_UINT8, BASE_DEC, VALS(gsm_bsslap_cause_vals), 0x0, + NULL, HFILL } + }, + { &hf_gsm_bsslap_rrlp_flg, + {"RRLP Flag", "gsm_bsslap.rrlp_flg", + FT_BOOLEAN, 8, TFS(&gsm_bsslap_rrlp_flg_vals), 0x01, + "Cause", HFILL } + }, + { &hf_gsm_bsslap_tfi, + {"TFI", "gsm_bsslap.tfi", + FT_UINT8, BASE_DEC, NULL, 0x1f, + NULL, HFILL } + }, + { &hf_gsm_bsslap_poll_rep, + {"Number of polling repetitions", "gsm_bsslap.poll_rep", + FT_UINT8, BASE_DEC, NULL, 0x3F, + NULL, HFILL } + }, + { &hf_gsm_bsslap_lac, + {"Location Area Code", "gsm_bsslap.lac", + FT_UINT8, BASE_DEC, NULL, 0x3f, + NULL, HFILL } + }, + { &hf_gsm_bsslap_cell_id_disc, + {"Cell identification Discriminator", "gsm_bsslap.cell_id_disc", + FT_UINT8, BASE_DEC, VALS(gsm_a_bsslap_cell_id_disc_vals), 0xf, + NULL, HFILL } + }, + { &hf_gsm_bsslap_encryption_key, + {"Encryption Key (Kc)", "gsm_bsslap.encryption_key", + FT_BYTES, BASE_NONE, NULL, 0x0, + NULL, HFILL } + }, + }; + + static ei_register_info ei[] = { + { &ei_gsm_bsslap_missing_mandatory_element, { "gsm_bsslap.missing_mandatory_element", PI_PROTOCOL, PI_WARN, "Missing Mandatory element, rest of dissection is suspect", EXPFILL }}, + { &ei_gsm_bsslap_not_decoded_yet, { "gsm_bsslap.not_decoded_yet", PI_UNDECODED, PI_WARN, "Not decoded yet", EXPFILL }}, + }; + + expert_module_t* expert_gsm_bsslap; + + /* Setup protocol subtree array */ +#define NUM_INDIVIDUAL_ELEMS 2 + gint *ett[NUM_INDIVIDUAL_ELEMS + NUM_GSM_BSSLAP_MSG + + NUM_GSM_BSSLAP_ELEM]; + + ett[0] = &ett_gsm_bsslap; + ett[1] = &ett_bsslap_cell_list; + + last_offset = NUM_INDIVIDUAL_ELEMS; + + for (i=0; i < NUM_GSM_BSSLAP_MSG; i++, last_offset++) + { + ett_gsm_bsslap_msg[i] = -1; + ett[last_offset] = &ett_gsm_bsslap_msg[i]; + } + + for (i=0; i < NUM_GSM_BSSLAP_ELEM; i++, last_offset++) + { + ett_gsm_bsslap_elem[i] = -1; + ett[last_offset] = &ett_gsm_bsslap_elem[i]; + } + + +/* Register the protocol name and description */ + proto_gsm_bsslap = + proto_register_protocol("BSS LCS Assistance Protocol", + "BSSLAP", "bsslap"); + +/* Required function calls to register the header fields and subtrees used */ + proto_register_field_array(proto_gsm_bsslap, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + expert_gsm_bsslap = expert_register_protocol(proto_gsm_bsslap); + expert_register_field_array(expert_gsm_bsslap, ei, array_length(ei)); + + register_dissector("gsm_bsslap", dissect_gsm_bsslap, proto_gsm_bsslap); +} + +/* + * 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: + */ |