GTPv2: add dissection of newer geographic location types
Bug: 15050 Change-Id: I3ecf9715fa5950262b68caff61e55abf943cebca Reviewed-on: https://code.wireshark.org/review/29045 Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com> Tested-by: Petri Dish Buildbot Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
This commit is contained in:
Pascal Quantin
parent
0720dedeff
commit
bc6e462c23
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@ -2880,6 +2880,7 @@ static int hf_E212_mcc_rai = -1;
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static int hf_E212_mcc_cgi = -1;
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static int hf_E212_mcc_ecgi = -1;
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static int hf_E212_mcc_tai = -1;
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static int hf_E212_mcc_nrcgi = -1;
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static int hf_E212_mnc = -1;
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static int hf_E212_mnc_lai = -1;
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static int hf_E212_mnc_sai = -1;
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@ -2887,6 +2888,7 @@ static int hf_E212_mnc_rai = -1;
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static int hf_E212_mnc_cgi = -1;
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static int hf_E212_mnc_ecgi = -1;
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static int hf_E212_mnc_tai = -1;
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static int hf_E212_mnc_nrcgi = -1;
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static int ett_e212_imsi = -1;
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@ -2988,6 +2990,10 @@ dissect_e212_mcc_mnc_wmem_packet_str(tvbuff_t *tvb, packet_info *pinfo, proto_tr
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hf_E212_mcc_id = hf_E212_mcc_tai;
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hf_E212_mnc_id = hf_E212_mnc_tai;
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break;
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case E212_NRCGI:
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hf_E212_mcc_id = hf_E212_mcc_nrcgi;
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hf_E212_mnc_id = hf_E212_mnc_nrcgi;
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break;
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default:
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hf_E212_mcc_id = hf_E212_mcc;
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hf_E212_mnc_id = hf_E212_mnc;
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@ -3412,6 +3418,11 @@ proto_register_e212(void)
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FT_UINT16, BASE_DEC|BASE_EXT_STRING, &E212_codes_ext, 0x0,
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"Mobile Country Code MCC", HFILL }
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},
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{ &hf_E212_mcc_nrcgi,
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{ "Mobile Country Code (MCC)","e212.nrcgi.mcc",
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FT_UINT16, BASE_DEC|BASE_EXT_STRING, &E212_codes_ext, 0x0,
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"Mobile Country Code MCC", HFILL }
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},
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{ &hf_E212_mnc,
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{ "Mobile Network Code (MNC)","e212.mnc",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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@ -3447,6 +3458,11 @@ proto_register_e212(void)
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FT_UINT16, BASE_DEC, NULL, 0x0,
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"Mobile network code", HFILL }
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},
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{ &hf_E212_mnc_nrcgi,
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{ "Mobile Network Code (MNC)","e212.nrcgi.mnc",
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FT_UINT16, BASE_DEC, NULL, 0x0,
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"Mobile network code", HFILL }
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},
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#if 0
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{ &hf_E212_msin,
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{ "Mobile Subscriber Identification Number (MSIN)", "e212.msin",
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@ -28,7 +28,8 @@ typedef enum {
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E212_SAI,
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E212_CGI,
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E212_ECGI,
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E212_TAI
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E212_TAI,
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E212_NRCGI
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} e212_number_type_t;
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gchar* dissect_e212_mcc_mnc_wmem_packet_str(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset, e212_number_type_t number_type, gboolean little_endian);
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@ -162,9 +162,10 @@ static int hf_gtpv2_mmbr_ul = -1;
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static int hf_gtpv2_mmbr_dl = -1;
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static int hf_gtpv2_rat_type = -1;
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static int hf_gtpv2_uli_spare = -1;
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static int hf_gtpv2_uli_ecgi_flg = -1;
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static int hf_gtpv2_uli_ext_macro_enb_id_flg = -1;
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static int hf_gtpv2_uli_macro_enb_id_flg = -1;
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static int hf_gtpv2_uli_lai_flg = -1;
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static int hf_gtpv2_uli_ecgi_flg = -1;
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static int hf_gtpv2_uli_tai_flg = -1;
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static int hf_gtpv2_uli_rai_flg = -1;
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static int hf_gtpv2_uli_sai_flg = -1;
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@ -326,6 +327,8 @@ static int hf_gtpv2_CauseProtocol = -1;
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static int hf_gtpv2_CauseMisc = -1;
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static int hf_gtpv2_target_type = -1;
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static int hf_gtpv2_macro_enodeb_id = -1;
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static int hf_gtpv2_smenb = -1;
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static int hf_gtpv2_ext_macro_enodeb_id = -1;
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static int hf_gtpv2_enodebid = -1;
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static int hf_gtpv2_cellid = -1;
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@ -394,6 +397,7 @@ static int hf_gtpv2_rai_lac= -1;
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static int hf_gtpv2_rai_rac= -1;
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static int hf_gtpv2_tai_tac= -1;
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static int hf_gtpv2_ecgi_eci= -1;
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static int hf_gtpv2_ncgi_nrci= -1;
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static int hf_gtpv2_uli_lai_lac = -1;
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static int hf_gtpv2_ecgi_eci_spare= -1;
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static int hf_gtpv2_nsapi = -1;
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@ -683,12 +687,14 @@ static expert_field ei_gtpv2_ie = EI_INIT;
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static expert_field ei_gtpv2_int_size_not_handled = EI_INIT;
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/* Definition of User Location Info (AVP 22) masks */
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#define GTPv2_ULI_CGI_MASK 0x01
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#define GTPv2_ULI_SAI_MASK 0x02
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#define GTPv2_ULI_RAI_MASK 0x04
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#define GTPv2_ULI_TAI_MASK 0x08
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#define GTPv2_ULI_ECGI_MASK 0x10
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#define GTPv2_ULI_LAI_MASK 0x20
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#define GTPv2_ULI_CGI_MASK 0x01
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#define GTPv2_ULI_SAI_MASK 0x02
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#define GTPv2_ULI_RAI_MASK 0x04
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#define GTPv2_ULI_TAI_MASK 0x08
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#define GTPv2_ULI_ECGI_MASK 0x10
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#define GTPv2_ULI_LAI_MASK 0x20
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#define GTPv2_ULI_MACRO_eNB_ID_MASK 0x40
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#define GTPv2_ULI_EXT_MACRO_eNB_ID_MASK 0x80
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#define GTPV2_PPI_VAL_MASK 0x3F
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@ -2565,6 +2571,55 @@ dissect_gtpv2_cgi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offs
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return str;
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}
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static gchar*
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dissect_gtpv2_macro_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
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{
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gchar *str = NULL;
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gchar *mcc_mnc_str;
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guint32 macro_enodeb_id;
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mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, TRUE);
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*offset += 3;
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/* The Macro eNodeB ID consists of 20 bits.
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* Bit 4 of Octet 4 is the most significant bit and bit 1 of Octet 6 is the least significant bit.
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*/
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proto_tree_add_item_ret_uint(tree, hf_gtpv2_macro_enodeb_id, tvb, *offset, 3, ENC_BIG_ENDIAN, ¯o_enodeb_id);
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*offset += 3;
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str = wmem_strdup_printf(wmem_packet_scope(), "%s, Macro eNodeB ID 0x%x",
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mcc_mnc_str,
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macro_enodeb_id);
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return str;
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}
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static const true_false_string gtpv2_smenb = {
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"Short Macro eNodeB ID",
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"Long Macro eNodeB ID",
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};
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static gchar*
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dissect_gtpv2_ext_macro_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
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{
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gchar *str = NULL;
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gchar *mcc_mnc_str;
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guint32 ext_macro_enodeb_id;
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mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, TRUE);
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*offset += 3;
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/* The Extended Macro eNodeB ID consists of 21 bits. */
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proto_tree_add_item(tree, hf_gtpv2_smenb, tvb, *offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item_ret_uint(tree, hf_gtpv2_ext_macro_enodeb_id, tvb, *offset, 3, ENC_BIG_ENDIAN, &ext_macro_enodeb_id);
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*offset += 3;
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str = wmem_strdup_printf(wmem_packet_scope(), "%s, Extended Macro eNodeB ID 0x%x",
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mcc_mnc_str,
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ext_macro_enodeb_id);
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return str;
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}
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static gchar*
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decode_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item *item, guint16 length, guint8 instance _U_, guint flags)
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{
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@ -2657,6 +2712,31 @@ decode_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_item
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lac);
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}
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/* 8.21.7 Macro eNodeB ID field */
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if (flags & GTPv2_ULI_MACRO_eNB_ID_MASK)
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{
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proto_item_append_text(item, "Macro eNodeB ID ");
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part_tree = proto_tree_add_subtree(tree, tvb, offset, 7,
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ett_gtpv2_uli_field, NULL, "Macro eNodeB ID");
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str = dissect_gtpv2_macro_enodeb_id(tvb, pinfo, part_tree, &offset);
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if (offset == length)
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return str;
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}
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/* 8.21.8 Macro eNodeB ID field */
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if (flags & GTPv2_ULI_MACRO_eNB_ID_MASK)
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{
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proto_item_append_text(item, "Ext Macro eNodeB ID ");
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part_tree = proto_tree_add_subtree(tree, tvb, offset, 7,
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ett_gtpv2_uli_field, NULL, "Extended Macro eNodeB ID");
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str = dissect_gtpv2_ext_macro_enodeb_id(tvb, pinfo, part_tree, &offset);
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if (offset == length)
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return str;
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}
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return str;
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@ -2669,7 +2749,8 @@ dissect_gtpv2_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_ite
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guint flags;
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static const int * gtpv2_uli_flags[] = {
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&hf_gtpv2_uli_spare,
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&hf_gtpv2_uli_ext_macro_enb_id_flg,
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&hf_gtpv2_uli_macro_enb_id_flg,
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&hf_gtpv2_uli_lai_flg,
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&hf_gtpv2_uli_ecgi_flg,
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&hf_gtpv2_uli_tai_flg,
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@ -2729,11 +2810,11 @@ dissect_diameter_3gpp_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, v
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int offset = 0;
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guint length;
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guint flags;
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guint flags_3gpp;
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guint32 flags_3gpp;
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length = tvb_reported_length(tvb);
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flags_3gpp = tvb_get_guint8(tvb, offset);
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proto_tree_add_item(tree, hf_gtpv2_glt, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item_ret_uint(tree, hf_gtpv2_glt, tvb, offset, 1, ENC_BIG_ENDIAN, &flags_3gpp);
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offset++;
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switch (flags_3gpp)
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{
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@ -2761,8 +2842,61 @@ dissect_diameter_3gpp_uli(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, v
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/* TAI and ECGI */
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flags = GTPv2_ULI_TAI_MASK + GTPv2_ULI_ECGI_MASK;
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break;
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case 131:
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/* eNodeB ID */
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flags = GTPv2_ULI_MACRO_eNB_ID_MASK;
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break;
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case 132:
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/* TAI and eNodeB ID */
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flags = GTPv2_ULI_TAI_MASK + GTPv2_ULI_MACRO_eNB_ID_MASK;
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break;
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case 133:
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/* extended eNodeB ID */
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flags = GTPv2_ULI_EXT_MACRO_eNB_ID_MASK;
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break;
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case 134:
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/* TAI and extended eNodeB ID */
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flags = GTPv2_ULI_TAI_MASK + GTPv2_ULI_EXT_MACRO_eNB_ID_MASK;
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break;
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case 135:
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/* NCGI */
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{
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gchar *mcc_mnc_str;
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guint64 nr_cell_id;
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proto_tree *subtree;
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subtree = proto_tree_add_subtree(tree, tvb, offset, 8, ett_gtpv2_uli_field, NULL,
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"NR Cell Global Identifier (NCGI)");
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mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, subtree, offset, E212_NRCGI, TRUE);
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offset += 3;
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proto_tree_add_item_ret_uint64(subtree, hf_gtpv2_ncgi_nrci, tvb, offset, 5, ENC_BIG_ENDIAN, &nr_cell_id);
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diam_sub_dis->avp_str = wmem_strdup_printf(wmem_packet_scope(),
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"%s, NR Cell Id 0x%" G_GINT64_MODIFIER "x",
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mcc_mnc_str, nr_cell_id);
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}
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return length;
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case 136:
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/* TAI and NCGI */
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{
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gchar *mcc_mnc_str;
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guint64 nr_cell_id;
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proto_tree *subtree;
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subtree = proto_tree_add_subtree(tree, tvb, offset, 5, ett_gtpv2_uli_field, NULL,
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"Tracking Area Identity (TAI)");
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diam_sub_dis->avp_str = dissect_gtpv2_tai(tvb, pinfo, subtree, &offset);
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subtree = proto_tree_add_subtree(tree, tvb, offset, 8, ett_gtpv2_uli_field, NULL,
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"NR Cell Global Identifier (NCGI)");
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mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, subtree, offset, E212_NRCGI, TRUE);
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offset += 3;
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proto_tree_add_item_ret_uint64(subtree, hf_gtpv2_ncgi_nrci, tvb, offset, 5, ENC_BIG_ENDIAN, &nr_cell_id);
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diam_sub_dis->avp_str = wmem_strdup_printf(wmem_packet_scope(),
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"%s, %s, NR Cell Id 0x%" G_GINT64_MODIFIER "x",
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diam_sub_dis->avp_str, mcc_mnc_str, nr_cell_id);
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}
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return length;
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default:
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proto_tree_add_item(tree, hf_gtpv2_geographic_location, tvb, 1, -1, ENC_NA);
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proto_tree_add_item(tree, hf_gtpv2_geographic_location, tvb, offset, -1, ENC_NA);
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return length;
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}
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@ -4793,29 +4927,6 @@ static const value_string gtpv2_target_type_vals[] = {
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};
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static value_string_ext gtpv2_target_type_vals_ext = VALUE_STRING_EXT_INIT(gtpv2_target_type_vals);
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static gchar*
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dissect_gtpv2_macro_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
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{
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gchar *str = NULL;
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gchar *mcc_mnc_str;
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guint32 macro_enodeb_id;
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mcc_mnc_str = dissect_e212_mcc_mnc_wmem_packet_str(tvb, pinfo, tree, *offset, E212_NONE, TRUE);
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*offset += 3;
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/* The Macro eNodeB ID consists of 20 bits.
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* Bit 4 of Octet 4 is the most significant bit and bit 1 of Octet 6 is the least significant bit.
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*/
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macro_enodeb_id = tvb_get_ntoh24(tvb, *offset) & 0x0fffff;
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proto_tree_add_item(tree, hf_gtpv2_macro_enodeb_id, tvb, *offset, 3, ENC_BIG_ENDIAN);
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*offset += 3;
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str = wmem_strdup_printf(wmem_packet_scope(), "%s, Macro eNodeB ID 0x%x",
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mcc_mnc_str,
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macro_enodeb_id);
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return str;
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}
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static gchar*
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dissect_gtpv2_home_enodeb_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int *offset)
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{
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@ -8530,10 +8641,15 @@ void proto_register_gtpv2(void)
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FT_BOOLEAN, 8, NULL, GTPv2_ULI_ECGI_MASK,
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NULL, HFILL}
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},
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{ &hf_gtpv2_uli_spare,
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{ "Spare", "gtpv2.uli_spare_flg",
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FT_UINT8, BASE_HEX, NULL, 0xc0,
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NULL, HFILL }
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{ &hf_gtpv2_uli_ext_macro_enb_id_flg,
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{"Extended Macro eNodeB ID Present", "gtpv2.uli_ext_macro_enb_id_flg",
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FT_BOOLEAN, 8, NULL, GTPv2_ULI_EXT_MACRO_eNB_ID_MASK,
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NULL, HFILL}
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},
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{ &hf_gtpv2_uli_macro_enb_id_flg,
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{"Macro eNodeB ID Present", "gtpv2.uli_macro_enb_id_flg",
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FT_BOOLEAN, 8, NULL, GTPv2_ULI_MACRO_eNB_ID_MASK,
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NULL, HFILL}
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},
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{ &hf_gtpv2_uli_lai_flg,
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{"LAI Present", "gtpv2.uli_lai_flg",
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@ -8605,6 +8721,11 @@ void proto_register_gtpv2(void)
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FT_UINT32, BASE_DEC, NULL, 0x0,
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NULL, HFILL}
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},
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{&hf_gtpv2_ncgi_nrci,
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{"NR Cell Identifier", "gtpv2.ncgi_nrci",
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FT_UINT40, BASE_HEX, NULL, 0xfffffffff0,
|
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NULL, HFILL}
|
||||
},
|
||||
{&hf_gtpv2_uli_lai_lac,
|
||||
{"Location Area Code (LAC)", "gtpv2.uli_lai_lac",
|
||||
FT_UINT16, BASE_HEX_DEC, NULL, 0x0,
|
||||
|
|
@ -9075,6 +9196,16 @@ void proto_register_gtpv2(void)
|
|||
FT_UINT32, BASE_HEX, NULL, 0x0fffff,
|
||||
NULL, HFILL}
|
||||
},
|
||||
{&hf_gtpv2_smenb,
|
||||
{"SMeNB", "gtpv2.smenb",
|
||||
FT_BOOLEAN, 24, TFS(>pv2_smenb), 0x800000,
|
||||
NULL, HFILL}
|
||||
},
|
||||
{&hf_gtpv2_ext_macro_enodeb_id,
|
||||
{"Extended Macro eNodeB ID", "gtpv2.ext_macro_enodeb_id",
|
||||
FT_UINT32, BASE_HEX, NULL, 0x1fffff,
|
||||
NULL, HFILL}
|
||||
},
|
||||
{&hf_gtpv2_cellid,
|
||||
{"CellId", "gtpv2.cellid",
|
||||
FT_UINT32, BASE_DEC, NULL, 0xFF,
|
||||
|
|
|
|||
Loading…
Reference in New Issue