/* Routines for 'Metadata' disassembly * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "config.h" #include #include #include #include #include "packet-sscop.h" #include "packet-gsm_a_common.h" void proto_register_meta(void); void proto_reg_handoff_meta(void); /* schemas */ #define META_SCHEMA_PCAP 1 #define META_SCHEMA_DXT 2 /* protocols */ #define META_PROTO_DXT_ETHERNET 1 #define META_PROTO_DXT_ETHERNET_CRC 36 #define META_PROTO_DXT_ATM 41 #define META_PROTO_DXT_ERF_AAL5 49 #define META_PROTO_DXT_M3UA 61 #define META_PROTO_DXT_NBAP 69 #define META_PROTO_DXT_ATM_AAL2 76 #define META_PROTO_DXT_FP_HINT 82 #define META_PROTO_DXT_HDLC 106 #define META_PROTO_DXT_CONTAINER 127 #define META_PROTO_DXT_FP_CAPTURE 193 #define META_PROTO_DXT_UTRAN_CAPSULE 194 /* data types */ #define META_TYPE_NONE 0 #define META_TYPE_BOOLEAN 1 #define META_TYPE_UINT8 2 #define META_TYPE_UINT16 3 #define META_TYPE_UINT32 4 #define META_TYPE_UINT64 5 #define META_TYPE_STRING 16 /* item ids */ #define META_ID_NULL 0 #define META_ID_DIRECTION 1 #define META_ID_SIGNALING 2 #define META_ID_INCOMPLETE 3 #define META_ID_DECIPHERED 4 #define META_ID_PAYLOADCUT 5 #define META_ID_TIMESTAMP64 6 #define META_ID_AAL5PROTO 7 #define META_ID_PHYLINKID 256 #define META_ID_LOCALDEVID 257 #define META_ID_REMOTEDEVID 258 #define META_ID_TAPGROUPID 259 #define META_ID_IMSI 1024 #define META_ID_IMEI 1025 #define META_ID_CELL 1026 #define META_ID_TLLI 1027 #define META_ID_NSAPI 1028 #define META_ID_APN 1029 #define META_ID_RAT 1030 #define META_ID_CALLING 1031 #define META_ID_CALLED 1032 enum meta_direction { META_DIR_UP, META_DIR_DOWN }; static int proto_meta; extern int proto_sscop; /* fields */ static int hf_meta_schema; static int hf_meta_hdrlen; static int hf_meta_proto; static int hf_meta_reserved; static int hf_meta_item; static int hf_meta_item_id; static int hf_meta_item_type; static int hf_meta_item_len; static int hf_meta_item_data; /* specific fields */ static int hf_meta_item_direction; static int hf_meta_item_ts; static int hf_meta_item_phylinkid; static int hf_meta_item_nsapi; static int hf_meta_item_imsi_value; static int hf_meta_item_imsi_digits; static int hf_meta_item_imei_value; static int hf_meta_item_imei_digits; static int hf_meta_item_signaling; static int hf_meta_item_incomplete; static int hf_meta_item_deciphered; static int hf_meta_item_apn; static int hf_meta_item_rat; static int hf_meta_item_aal5proto; static int hf_meta_item_cell; static int hf_meta_item_localdevid; static int hf_meta_item_remotedevid; static int hf_meta_item_tapgroupid; static int hf_meta_item_tlli; static int hf_meta_item_calling; static int hf_meta_item_called; /* subtrees */ static gint ett_meta; static gint ett_meta_item; static gint ett_meta_cell; static gint ett_meta_imsi; static gint ett_meta_imei; static expert_field ei_meta_malformed; static expert_field ei_meta_invalid_header; /* default handle */ static dissector_handle_t data_handle; static dissector_handle_t atm_untrunc_handle; static dissector_handle_t sscf_nni_handle; static dissector_handle_t alcap_handle; static dissector_handle_t nbap_handle; static dissector_handle_t ethwithfcs_handle; static dissector_handle_t ethwithoutfcs_handle; static dissector_handle_t fphint_handle; static dissector_handle_t mtp2_handle; static dissector_table_t meta_dissector_table; static const value_string meta_schema_vals[] = { { META_SCHEMA_PCAP, "PCAP" }, { META_SCHEMA_DXT, "DXT" }, { 0, NULL } }; static const value_string meta_proto_vals[] = { { META_PROTO_DXT_ETHERNET, "Ethernet without FCS" }, { META_PROTO_DXT_ETHERNET_CRC, "Ethernet with FCS" }, { META_PROTO_DXT_ATM, "ATM" }, { META_PROTO_DXT_ERF_AAL5, "ERF AAL5" }, /* XXX: META_PROTO_DXT_M3UA ? */ /* XXX: META_PROTO_DXT_NBAP ? */ { META_PROTO_DXT_ATM_AAL2, "ATM AAL2" }, { META_PROTO_DXT_FP_HINT, "FP Hint" }, { META_PROTO_DXT_HDLC, "HDLC" }, { META_PROTO_DXT_CONTAINER, "DXT CONTAINER" }, { META_PROTO_DXT_FP_CAPTURE, "FP CAPTURE" }, { META_PROTO_DXT_UTRAN_CAPSULE, "UTRAN CAPSULE" }, { 0, NULL } }; static value_string_ext meta_proto_vals_ext = VALUE_STRING_EXT_INIT(meta_proto_vals); static const value_string meta_type_vals[] = { { META_TYPE_NONE, "NONE" }, { META_TYPE_BOOLEAN, "BOOLEAN" }, { META_TYPE_UINT8, "UINT8" }, { META_TYPE_UINT16, "UINT16" }, { META_TYPE_UINT32, "UINT32" }, { META_TYPE_UINT64, "UINT64" }, { META_TYPE_STRING, "STRING" }, { 0, NULL } }; /* TODO: this must be on a per-schema basis! */ static const value_string meta_id_vals[] = { { META_ID_NULL, "NULL" }, { META_ID_DIRECTION, "Direction" }, { META_ID_SIGNALING, "Signaling" }, { META_ID_INCOMPLETE, "Incomplete" }, { META_ID_DECIPHERED, "Deciphered" }, { META_ID_PAYLOADCUT, "Payload cutted" }, { META_ID_TIMESTAMP64, "Timestamp" }, { META_ID_AAL5PROTO, "AAL5 Protocol Type" }, { META_ID_PHYLINKID, "Physical Link ID" }, { META_ID_LOCALDEVID, "Local Device ID" }, { META_ID_REMOTEDEVID, "Remote Device ID" }, { META_ID_TAPGROUPID, "Tap Group ID" }, { META_ID_IMSI, "IMSI" }, { META_ID_IMEI, "IMEI" }, { META_ID_CELL, "Mobile Cell" }, { META_ID_TLLI, "TLLI" }, { META_ID_NSAPI, "NSAPI" }, { META_ID_APN, "APN" }, { META_ID_RAT, "RAT" }, { META_ID_CALLING, "Calling Station ID" }, { META_ID_CALLED, "Called Station ID" }, { 0, NULL } }; static value_string_ext meta_id_vals_ext = VALUE_STRING_EXT_INIT(meta_id_vals); #define META_AAL5PROTO_MTP3 2 #define META_AAL5PROTO_NS 3 #define META_AAL5PROTO_ALCAP 5 #define META_AAL5PROTO_NBAP 6 static const value_string meta_aal5proto_vals[] = { { META_AAL5PROTO_MTP3, "SSCOP MTP3" }, { META_AAL5PROTO_ALCAP, "SSCOP ALCAP" }, { META_AAL5PROTO_NBAP, "SSCOP NBAP" }, { META_AAL5PROTO_NS, "GPRS NS" }, { 0, NULL } }; static const value_string meta_direction_vals[] = { { 0, "Up" }, { 1, "Down" }, { 0, NULL } }; static guint16 skip_item(proto_tree *meta_tree, tvbuff_t *tvb, packet_info *pinfo _U_, guint16 offs) { guint16 id; guint8 type; guint16 len, aligned_len, total_len; proto_tree *item_tree; proto_item *subti; id = tvb_get_letohs(tvb, offs); offs += 2; type = tvb_get_guint8(tvb, offs); offs++; len = tvb_get_guint8(tvb, offs); offs++; aligned_len = (len + 3) & 0xfffc; total_len = aligned_len + 4; /* 4: id, type, len fields */ subti = proto_tree_add_item(meta_tree, hf_meta_item, tvb, offs - 4, aligned_len + 4, ENC_NA); item_tree = proto_item_add_subtree(subti, ett_meta_item); proto_tree_add_uint(item_tree, hf_meta_item_id, tvb, offs - 4, 2, id); proto_tree_add_uint(item_tree, hf_meta_item_type, tvb, offs - 2, 1, type); proto_tree_add_uint(item_tree, hf_meta_item_len, tvb, offs - 1, 1, len); if (len > 0) proto_tree_add_item(item_tree, hf_meta_item_data, tvb, offs, len, ENC_NA); return total_len; } /* * offs: current offset in tvb */ static guint16 evaluate_meta_item_pcap(proto_tree *meta_tree, tvbuff_t *tvb, packet_info *pinfo, guint16 offs) { guint16 id; guint8 type; guint16 len, aligned_len, total_len; proto_tree *item_tree; proto_item *subti; /* field values */ guint8 dir; guint64 ts; id = tvb_get_letohs(tvb, offs); offs += 2; type = tvb_get_guint8(tvb, offs); offs++; len = tvb_get_guint8(tvb, offs); offs++; aligned_len = (len + 3) & 0xfffc; total_len = aligned_len + 4; /* 4: id, type, len fields */ switch (id) { case META_ID_DIRECTION: dir = tvb_get_guint8(tvb, offs); pinfo->p2p_dir = dir == META_DIR_UP ? P2P_DIR_RECV : P2P_DIR_SENT; proto_tree_add_uint(meta_tree, hf_meta_item_direction, tvb, offs, 1, dir); break; case META_ID_TIMESTAMP64: ts = tvb_get_letoh64(tvb, offs); proto_tree_add_uint64(meta_tree, hf_meta_item_ts, tvb, offs, 8, ts); break; case META_ID_SIGNALING: proto_tree_add_boolean(meta_tree, hf_meta_item_signaling, tvb, offs, 0, 1); break; case META_ID_INCOMPLETE: proto_tree_add_boolean(meta_tree, hf_meta_item_incomplete, tvb, offs, 0, 1); break; default: subti = proto_tree_add_item(meta_tree, hf_meta_item, tvb, offs - 4, aligned_len + 4, ENC_NA); item_tree = proto_item_add_subtree(subti, ett_meta_item); proto_tree_add_uint(item_tree, hf_meta_item_id, tvb, offs - 4, 2, id); proto_tree_add_uint(item_tree, hf_meta_item_type, tvb, offs - 2, 1, type); proto_tree_add_uint(item_tree, hf_meta_item_len, tvb, offs - 1, 1, len); if (len > 0) proto_tree_add_item(item_tree, hf_meta_item_data, tvb, offs, len, ENC_NA); } return total_len; } /* * offs: current offset in tvb */ static guint16 evaluate_meta_item_dxt(proto_tree *meta_tree, tvbuff_t *tvb, packet_info *pinfo, guint16 offs, struct atm_phdr *atm_info) { guint16 id; guint8 type; guint16 len, aligned_len, total_len; proto_tree *item_tree; proto_item *subti; /* field values */ guint8 dir, nsapi, rat, aal5proto; guint16 phylinkid, localdevid, remotedevid, tapgroupid; guint32 tlli; guint64 ts, cell; sscop_payload_info *p_sscop_info; proto_item *cell_item, *imsi_item, *imei_item; proto_tree *cell_tree, *imsi_tree, *imei_tree; id = tvb_get_letohs(tvb, offs); offs += 2; type = tvb_get_guint8(tvb, offs); offs++; len = tvb_get_guint8(tvb, offs); offs++; aligned_len = (len + 3) & 0xfffc; total_len = aligned_len + 4; /* 4: id, type, len fields */ switch (id) { case META_ID_DIRECTION: dir = tvb_get_guint8(tvb, offs); pinfo->p2p_dir = (dir == META_DIR_UP ? P2P_DIR_RECV : P2P_DIR_SENT); proto_tree_add_uint(meta_tree, hf_meta_item_direction, tvb, offs, 1, dir); break; case META_ID_TIMESTAMP64: ts = tvb_get_letoh64(tvb, offs); proto_tree_add_uint64(meta_tree, hf_meta_item_ts, tvb, offs, 8, ts); break; case META_ID_PHYLINKID: phylinkid = tvb_get_letohs(tvb, offs); pinfo->link_number = phylinkid; proto_tree_add_uint(meta_tree, hf_meta_item_phylinkid, tvb, offs, 2, phylinkid); break; case META_ID_NSAPI: nsapi = tvb_get_guint8(tvb, offs); proto_tree_add_uint(meta_tree, hf_meta_item_nsapi, tvb, offs, 1, nsapi); break; case META_ID_IMSI: imsi_item = proto_tree_add_item(meta_tree, hf_meta_item_imsi_digits, tvb, offs, 8, ENC_BCD_DIGITS_0_9|ENC_LITTLE_ENDIAN); imsi_tree = proto_item_add_subtree(imsi_item, ett_meta_imsi); proto_tree_add_item(imsi_tree, hf_meta_item_imsi_value, tvb, offs, 8, ENC_LITTLE_ENDIAN); break; case META_ID_IMEI: imei_item = proto_tree_add_item(meta_tree, hf_meta_item_imei_digits, tvb, offs, 8, ENC_BCD_DIGITS_0_9|ENC_LITTLE_ENDIAN); imei_tree = proto_item_add_subtree(imei_item, ett_meta_imei); proto_tree_add_item(imei_tree, hf_meta_item_imei_value, tvb, offs, 8, ENC_LITTLE_ENDIAN); break; case META_ID_APN: proto_tree_add_item(meta_tree, hf_meta_item_apn, tvb, offs, len, ENC_ASCII); break; case META_ID_RAT: rat = tvb_get_guint8(tvb, offs); proto_tree_add_uint(meta_tree, hf_meta_item_rat, tvb, offs, 1, rat); break; case META_ID_CELL: cell = tvb_get_ntoh64(tvb, offs); cell_item = proto_tree_add_uint64_format(meta_tree, hf_meta_item_cell, tvb, offs, 8, cell, "Mobile Cell"); cell_tree = proto_item_add_subtree(cell_item, ett_meta_cell); de_gmm_rai(tvb, cell_tree, pinfo, offs, 8, NULL, 0); de_cell_id(tvb, cell_tree, pinfo, offs + 6, 2, NULL, 0); break; case META_ID_SIGNALING: proto_tree_add_boolean(meta_tree, hf_meta_item_signaling, tvb, offs, 0, 1); break; case META_ID_INCOMPLETE: proto_tree_add_boolean(meta_tree, hf_meta_item_incomplete, tvb, offs, 0, 1); break; case META_ID_DECIPHERED: proto_tree_add_boolean(meta_tree, hf_meta_item_deciphered, tvb, offs, 0, 1); break; case META_ID_AAL5PROTO: aal5proto = tvb_get_guint8(tvb, offs); p_sscop_info = (sscop_payload_info *)p_get_proto_data(wmem_file_scope(), pinfo, proto_sscop, 0); if (!p_sscop_info) { p_sscop_info = wmem_new0(wmem_file_scope(), sscop_payload_info); p_add_proto_data(wmem_file_scope(), pinfo, proto_sscop, 0, p_sscop_info); } switch (aal5proto) { case META_AAL5PROTO_MTP3: p_sscop_info->subdissector = sscf_nni_handle; /* hint for ATM dissector that this frame contains SSCOP */ memset(atm_info, 0, sizeof(*atm_info)); atm_info->type = TRAF_SSCOP; break; case META_AAL5PROTO_ALCAP: p_sscop_info->subdissector = alcap_handle; break; case META_AAL5PROTO_NBAP: p_sscop_info->subdissector = nbap_handle; break; case META_AAL5PROTO_NS: /* hint for ATM dissector that this frame contains GPRS NS */ memset(atm_info, 0, sizeof(*atm_info)); atm_info->type = TRAF_GPRS_NS; break; /* TODO: check for additional protos on Iu 802 LLC/SNAP ... */ default: /* TODO: add warning */ p_remove_proto_data(wmem_file_scope(), pinfo, proto_sscop, 0); } proto_tree_add_uint(meta_tree, hf_meta_item_aal5proto, tvb, offs, 1, aal5proto); break; case META_ID_LOCALDEVID: localdevid = tvb_get_letohs(tvb, offs); proto_tree_add_uint(meta_tree, hf_meta_item_localdevid, tvb, offs, 2, localdevid); break; case META_ID_REMOTEDEVID: remotedevid = tvb_get_letohs(tvb, offs); proto_tree_add_uint(meta_tree, hf_meta_item_remotedevid, tvb, offs, 2, remotedevid); break; case META_ID_TAPGROUPID: tapgroupid = tvb_get_letohs(tvb, offs); proto_tree_add_uint(meta_tree, hf_meta_item_tapgroupid, tvb, offs, 2, tapgroupid); break; case META_ID_TLLI: tlli = tvb_get_letohs(tvb, offs); proto_tree_add_uint(meta_tree, hf_meta_item_tlli, tvb, offs, 4, tlli); break; case META_ID_CALLING: proto_tree_add_item(meta_tree, hf_meta_item_calling, tvb, offs, len, ENC_ASCII); break; case META_ID_CALLED: proto_tree_add_item(meta_tree, hf_meta_item_called, tvb, offs, len, ENC_ASCII); break; default: subti = proto_tree_add_item(meta_tree, hf_meta_item, tvb, offs - 4, aligned_len + 4, ENC_NA); item_tree = proto_item_add_subtree(subti, ett_meta_item); proto_tree_add_uint(item_tree, hf_meta_item_id, tvb, offs - 4, 2, id); proto_tree_add_uint(item_tree, hf_meta_item_type, tvb, offs - 2, 1, type); proto_tree_add_uint(item_tree, hf_meta_item_len, tvb, offs - 1, 1, len); if (len > 0) proto_tree_add_item(item_tree, hf_meta_item_data, tvb, offs, len, ENC_NA); } return total_len; } /* * offs: current offset within tvb * header_length: length of meta header */ static gint32 evaluate_meta_items(guint16 schema, tvbuff_t *tvb, packet_info *pinfo, proto_tree *meta_tree, guint16 offs, gint32 header_length, struct atm_phdr *atm_info) { gint16 item_len; gint32 total_len = 0; while (total_len < header_length) { switch (schema) { case META_SCHEMA_DXT: item_len = evaluate_meta_item_dxt(meta_tree, tvb, pinfo, offs + total_len, atm_info); break; case META_SCHEMA_PCAP: item_len = evaluate_meta_item_pcap(meta_tree, tvb, pinfo, offs + total_len); break; default: item_len = skip_item(meta_tree, tvb, pinfo, offs + total_len); } if (item_len < 4) { /* 4 is the minimum length of an item: id + type + length field */ expert_add_info_format(pinfo, meta_tree, &ei_meta_malformed, "Malformed Packet %s (wrong item encoding)", pinfo->current_proto); return -1; } total_len += item_len; } return total_len; } static int dissect_meta(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { #define META_HEADER_SIZE 8 guint16 schema, proto, hdrlen, reserved; gint32 item_len; guint32 aal2_ext, atm_hdr; proto_tree *meta_tree = NULL; proto_item *ti = NULL; tvbuff_t *next_tvb = NULL; dissector_handle_t next_dissector = data_handle; void *next_dissector_data = NULL; struct atm_phdr atm_info; col_set_str(pinfo->cinfo, COL_PROTOCOL, "META"); schema = tvb_get_letohs(tvb, 0); hdrlen = tvb_get_letohs(tvb, 2); proto = tvb_get_letohs(tvb, 4); reserved = tvb_get_letohs(tvb, 6); if (tree) { ti = proto_tree_add_item(tree, proto_meta, tvb, 0, hdrlen + 4, ENC_NA); meta_tree = proto_item_add_subtree(ti, ett_meta); proto_tree_add_uint(meta_tree, hf_meta_schema, tvb, 0, 2, schema); proto_tree_add_uint(meta_tree, hf_meta_hdrlen, tvb, 2, 2, hdrlen); proto_tree_add_uint(meta_tree, hf_meta_proto, tvb, 4, 2, proto); proto_tree_add_uint(meta_tree, hf_meta_reserved, tvb, 6, 2, reserved); } item_len = evaluate_meta_items(schema, tvb, pinfo, meta_tree, META_HEADER_SIZE, hdrlen, &atm_info); if (item_len < 0) { /* evaluate_meta_items signalled an error */ return META_HEADER_SIZE; /* stop parsing */ } if (hdrlen != item_len) { expert_add_info(pinfo, ti, &ei_meta_invalid_header); return META_HEADER_SIZE; } /* find next subdissector based on the chosen schema */ switch (schema) { case META_SCHEMA_PCAP: /* TODO */ break; case META_SCHEMA_DXT: switch (proto) { case META_PROTO_DXT_ETHERNET: next_dissector = ethwithoutfcs_handle; break; case META_PROTO_DXT_ETHERNET_CRC: next_dissector = ethwithfcs_handle; break; case META_PROTO_DXT_FP_HINT: next_dissector = fphint_handle; break; case META_PROTO_DXT_ATM: memset(&atm_info, 0, sizeof atm_info); atm_info.aal = AAL_OAMCELL; atm_info.type = TRAF_UNKNOWN; next_dissector = atm_untrunc_handle; next_dissector_data = &atm_info; break; case META_PROTO_DXT_ATM_AAL2: aal2_ext = tvb_get_ntohl(tvb, item_len + META_HEADER_SIZE); item_len += 4; atm_hdr = tvb_get_ntohl(tvb, item_len + META_HEADER_SIZE); item_len += 4; memset(&atm_info, 0, sizeof(atm_info)); atm_info.aal = AAL_2; /* atm_info.flags = pinfo->p2p_dir; */ atm_info.vpi = ((atm_hdr & 0x0ff00000) >> 20); atm_info.vci = ((atm_hdr & 0x000ffff0) >> 4); atm_info.aal2_cid = aal2_ext & 0x000000ff; atm_info.type = TRAF_UMTS_FP; next_dissector = atm_untrunc_handle; next_dissector_data = &atm_info; break; case META_PROTO_DXT_ERF_AAL5: atm_hdr = tvb_get_ntohl(tvb, item_len + META_HEADER_SIZE); item_len += 4; atm_info.vpi = ((atm_hdr & 0x0ff00000) >> 20); atm_info.vci = ((atm_hdr & 0x000ffff0) >> 4); atm_info.aal = AAL_5; next_dissector = atm_untrunc_handle; next_dissector_data = &atm_info; break; case META_PROTO_DXT_HDLC: next_dissector = mtp2_handle; next_tvb = tvb_new_subset_length_caplen(tvb, item_len + META_HEADER_SIZE, tvb_reported_length(tvb)-item_len-META_HEADER_SIZE-2, -1); break; default: next_dissector = dissector_get_uint_handle(meta_dissector_table, proto); } } if (!next_tvb) next_tvb = tvb_new_subset_remaining(tvb, item_len + META_HEADER_SIZE); call_dissector_with_data(next_dissector, next_tvb, pinfo, tree, next_dissector_data); return tvb_captured_length(tvb); } void proto_register_meta(void) { static hf_register_info hf[] = { /* metadata header */ { &hf_meta_schema, { "Schema", "meta.schema", FT_UINT16, BASE_DEC, VALS(meta_schema_vals), 0, NULL, HFILL } }, { &hf_meta_hdrlen, { "Header Length", "meta.hdrlen", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_proto, { "Protocol", "meta.proto", FT_UINT16, BASE_DEC | BASE_EXT_STRING, &meta_proto_vals_ext, 0, NULL, HFILL } }, { &hf_meta_reserved, { "Reserved", "meta.reserved", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } }, /* general meta item */ { &hf_meta_item, { "Unknown Item", "meta.item", FT_NONE, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_id, { "Item ID", "meta.item.id", FT_UINT16, BASE_HEX | BASE_EXT_STRING, &meta_id_vals_ext, 0x0, NULL, HFILL } }, { &hf_meta_item_type, { "Item Type", "meta.item.type", FT_UINT8, BASE_HEX, VALS(meta_type_vals), 0x0, NULL, HFILL } }, { &hf_meta_item_len, { "Item Length", "meta.item.len", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_data, { "Item Data", "meta.item.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, /* specific meta items */ { &hf_meta_item_direction, { "Direction", "meta.direction", FT_UINT8, BASE_DEC, VALS(meta_direction_vals), 0, NULL, HFILL } }, { &hf_meta_item_ts, { "Timestamp", "meta.timestamp", FT_UINT64, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_phylinkid, { "Physical Link ID", "meta.phylinkid", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_nsapi, { "NSAPI", "meta.nsapi", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_imsi_digits, { "IMSI digits", "meta.imsi_digits", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_imsi_value, { "IMSI value", "meta.imsi_value", FT_UINT64, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_meta_item_imei_digits, { "IMEI digits", "meta.imei_digits", FT_STRING, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_imei_value, { "IMEI value", "meta.imei_value", FT_UINT64, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_meta_item_signaling, { "Signaling", "meta.signaling", FT_BOOLEAN, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_incomplete, { "Incomplete", "meta.incomplete", FT_BOOLEAN, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_deciphered, { "Deciphered", "meta.deciphered", FT_BOOLEAN, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_apn, { "APN", "meta.apn", FT_STRINGZ, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_rat, { "RAT", "meta.rat", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_aal5proto, { "AAL5 Protocol Type", "meta.aal5proto", FT_UINT8, BASE_DEC, VALS(meta_aal5proto_vals), 0, NULL, HFILL } }, { &hf_meta_item_cell, { "Mobile Cell", "meta.cell", FT_UINT64, BASE_HEX, NULL, 0, NULL, HFILL } }, { &hf_meta_item_localdevid, { "Local Device ID", "meta.localdevid", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_remotedevid, { "Remote Device ID", "meta.remotedevid", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_tapgroupid, { "Tap Group ID", "meta.tapgroupid", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_tlli, { "TLLI", "meta.tlli", FT_UINT32, BASE_DEC, NULL, 0, NULL, HFILL } }, { &hf_meta_item_calling, { "Calling Station ID", "meta.calling", FT_STRINGZ, BASE_NONE, NULL, 0, NULL, HFILL } }, { &hf_meta_item_called, { "Called Station ID", "meta.called", FT_STRINGZ, BASE_NONE, NULL, 0, NULL, HFILL } }, }; static gint *ett[] = { &ett_meta, &ett_meta_item, &ett_meta_cell, &ett_meta_imsi, &ett_meta_imei }; static ei_register_info ei[] = { { &ei_meta_malformed, { "meta.malformed", PI_MALFORMED, PI_ERROR, "Malformed data", EXPFILL }}, { &ei_meta_invalid_header, { "meta.invalid_header_length", PI_MALFORMED, PI_ERROR, "Invalid Header Length", EXPFILL }}, }; expert_module_t* expert_meta; proto_meta = proto_register_protocol("Metadata", "META", "meta"); register_dissector("meta", dissect_meta, proto_meta); proto_register_field_array(proto_meta, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); expert_meta = expert_register_protocol(proto_meta); expert_register_field_array(expert_meta, ei, array_length(ei)); meta_dissector_table = register_dissector_table("meta.proto", "META protocol", proto_meta, FT_UINT16, BASE_DEC); } void proto_reg_handoff_meta(void) { #if 0 /* enable once WTAP_ENCAP_META exists */ dissector_handle_t meta_handle; meta_handle = find_dissector("meta"); dissector_add_uint("wtap_encap", WTAP_ENCAP_META, meta_handle); #endif data_handle = find_dissector("data"); alcap_handle = find_dissector_add_dependency("alcap", proto_meta); atm_untrunc_handle = find_dissector_add_dependency("atm_untruncated", proto_meta); nbap_handle = find_dissector_add_dependency("nbap", proto_meta); sscf_nni_handle = find_dissector_add_dependency("sscf-nni", proto_meta); ethwithfcs_handle = find_dissector_add_dependency("eth_withfcs", proto_meta); ethwithoutfcs_handle = find_dissector_add_dependency("eth_withoutfcs", proto_meta); fphint_handle = find_dissector_add_dependency("fp_hint", proto_meta); mtp2_handle = find_dissector_add_dependency("mtp2", proto_meta); } /* * 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: */