diff options
| author | Bill Meier <wmeier@newsguy.com> | 2012-07-21 14:03:46 +0000 |
|---|---|---|
| committer | Bill Meier <wmeier@newsguy.com> | 2012-07-21 14:03:46 +0000 |
| commit | 918f05baa89148f186cecaad0fd13a1994a8f1d5 (patch) | |
| tree | 52de14a3ebeb6d5163839fabfeb44a4aed625f75 /epan/dissectors | |
| parent | 6ed0c7995652a587581a3cbaa931abff8070b435 (diff) | |
Calls to col_...() and expert...() functions should not be under 'if (tree)';
Remove unneeded #include;
Convert "4 space tabs" to spaces;
Remove trailing whitespace;
Add svn:id and svn:eol-style properties.
svn path=/trunk/; revision=43891
Diffstat (limited to 'epan/dissectors')
| -rw-r--r-- | epan/dissectors/packet-sprt.c | 6340 |
1 files changed, 3168 insertions, 3172 deletions
diff --git a/epan/dissectors/packet-sprt.c b/epan/dissectors/packet-sprt.c index 97df14872a..ab7ea7cae1 100644 --- a/epan/dissectors/packet-sprt.c +++ b/epan/dissectors/packet-sprt.c @@ -1,3172 +1,3168 @@ -/* packet-sprt.h
- *
- * Routines for SPRT dissection
- * SPRT = Simple Packet Relay Transport
- *
- * $Id$
- *
- * Written by Jamison Adcock <jamison.adcock@cobham.com>
- * for Sparta Inc., dba Cobham Analytic Solutions
- * This code is largely based on the RTP parsing code
- *
- * Wireshark - Network traffic analyzer
- * By Gerald Combs <gerald@wireshark.org>
- * Copyright 1998 Gerald Combs
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/* TODO:
- * - work on conversations
- *
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <glib.h>
-
-#include <epan/packet.h>
-#include <epan/prefs.h>
-#include <epan/conversation.h>
-#include <epan/expert.h>
-#include <epan/tfs.h>
-
-#include "packet-sprt.h"
-
-/* Initialize the protocol & registered fields */
-static int proto_sprt = -1;
-
-static int hf_sprt_setup = -1;
-static int hf_sprt_setup_frame = -1;
-static int hf_sprt_setup_method = -1;
-
-static int hf_sprt_header_extension_bit = -1;
-static int hf_sprt_subsession_id = -1;
-static int hf_sprt_reserved_bit = -1;
-static int hf_sprt_payload_type = -1;
-static int hf_sprt_transport_channel_id = -1;
-static int hf_sprt_sequence_number = -1;
-static int hf_sprt_number_of_ack_fields = -1;
-static int hf_sprt_base_sequence_number = -1;
-static int hf_sprt_ack_field_items = -1;
-static int hf_sprt_transport_channel_item = -1;
-static int hf_sprt_sequence_item = -1;
-
-static int hf_sprt_payload = -1;
-static int hf_sprt_payload_no_data = -1;
-static int hf_sprt_payload_reserved_bit = -1;
-static int hf_sprt_payload_message_id = -1;
-
-static int hf_sprt_payload_data = -1; /* stuff after msgid */
-/* INIT msg: */
-static int hf_sprt_payload_msg_init_all_fields = -1;
-static int hf_sprt_payload_msg_init_necrxch = -1;
-static int hf_sprt_payload_msg_init_ecrxch = -1;
-static int hf_sprt_payload_msg_init_xid_prof_exch = -1;
-static int hf_sprt_payload_msg_init_assym_data_types = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_i_raw_bit = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_i_frame = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_i_char_stat = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_i_octet_cs = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_i_char_stat_cs = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn_cs = -1;
-static int hf_sprt_payload_msg_init_opt_moip_types_reserved = -1;
-/* XID_XCHG message: */
-static int hf_sprt_payload_msg_xidxchg_ecp = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr1_v42bis = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr1_v44 = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr1_mnp5 = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr1_reserved = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr2_v42bis_compr_req = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr3and4_v42bis_num_codewords = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr5_v42bis_max_strlen = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr6_v44_capability = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr7_v44_compr_req = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr8and9_v44_num_codewords_trans = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr10and11_v44_num_codewords_recv = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr12_v44_max_strlen_trans = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr13_v44_max_strlen_recv = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr14and15_v44_history_len_trans = -1;
-static int hf_sprt_payload_msg_xidxchg_xidlr16and17_v44_history_len_recv = -1;
-/* V.8 JM_INFO msg: */
-static int hf_sprt_payload_msg_jminfo_category_data = -1;
-static int hf_sprt_payload_msg_jminfo_category_id = -1;
-static int hf_sprt_payload_msg_jminfo_category_ext_info = -1;
-static int hf_sprt_payload_msg_jminfo_unk_category_info = -1;
-static int hf_sprt_payload_msg_jminfo_category_leftover_bits = -1;
-static int hf_sprt_payload_msg_jminfo_call_function = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v34_duplex = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v34_half_duplex = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v32bis_v32 = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v22bis_v22 = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v17 = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v29_half_duplex = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v27ter = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v26ter = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v26bis = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v23_duplex = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v23_half_duplex = -1;
-static int hf_sprt_payload_msg_jminfo_mod_v21 = -1;
-static int hf_sprt_payload_msg_jminfo_protocols = -1;
-static int hf_sprt_payload_msg_jminfo_pstn_access_call_dce_cell = -1;
-static int hf_sprt_payload_msg_jminfo_pstn_access_answ_dce_cell = -1;
-static int hf_sprt_payload_msg_jminfo_pstn_access_dce_on_digital_net = -1;
-static int hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_analog = -1;
-static int hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_digital = -1;
-static int hf_sprt_payload_msg_jminfo_pcm_modem_avail_v91 = -1;
-/* CONNECT msg: */
-static int hf_sprt_payload_msg_connect_selmod = -1;
-static int hf_sprt_payload_msg_connect_compr_dir = -1;
-static int hf_sprt_payload_msg_connect_selected_compr = -1;
-static int hf_sprt_payload_msg_connect_selected_err_corr = -1;
-static int hf_sprt_payload_msg_connect_tdsr = -1;
-static int hf_sprt_payload_msg_connect_rdsr = -1;
-static int hf_sprt_payload_msg_connect_dlci_enabled = -1;
-static int hf_sprt_payload_msg_connect_avail_data_types = -1;
-static int hf_sprt_payload_msg_connect_adt_octet_no_format_no_dlci = -1;
-static int hf_sprt_payload_msg_connect_adt_i_raw_bit = -1;
-static int hf_sprt_payload_msg_connect_adt_i_frame = -1;
-static int hf_sprt_payload_msg_connect_adt_i_char_stat = -1;
-static int hf_sprt_payload_msg_connect_adt_i_char_dyn = -1;
-static int hf_sprt_payload_msg_connect_adt_i_octet_cs = -1;
-static int hf_sprt_payload_msg_connect_adt_i_char_stat_cs = -1;
-static int hf_sprt_payload_msg_connect_adt_i_char_dyn_cs = -1;
-static int hf_sprt_payload_msg_connect_adt_reserved = -1;
-static int hf_sprt_payload_msg_connect_compr_trans_dict_sz = -1;
-static int hf_sprt_payload_msg_connect_compr_recv_dict_sz = -1;
-static int hf_sprt_payload_msg_connect_compr_trans_str_len = -1;
-static int hf_sprt_payload_msg_connect_compr_recv_str_len = -1;
-static int hf_sprt_payload_msg_connect_compr_trans_hist_sz = -1;
-static int hf_sprt_payload_msg_connect_compr_recv_hist_sz = -1;
-/* BREAK msg: */
-static int hf_sprt_payload_msg_break_source_proto = -1;
-static int hf_sprt_payload_msg_break_type = -1;
-static int hf_sprt_payload_msg_break_length = -1;
-/* MR_EVENT msg: */
-static int hf_sprt_payload_msg_mr_event_id = -1;
-static int hf_sprt_payload_msg_mr_evt_reason_code = -1;
-static int hf_sprt_payload_msg_mr_evt_selmod = -1;
-static int hf_sprt_payload_msg_mr_evt_txsen = -1;
-static int hf_sprt_payload_msg_mr_evt_rxsen = -1;
-static int hf_sprt_payload_msg_mr_evt_tdsr = -1;
-static int hf_sprt_payload_msg_mr_evt_rdsr = -1;
-static int hf_sprt_payload_msg_mr_evt_txsr = -1;
-static int hf_sprt_payload_msg_mr_evt_rxsr = -1;
-/* CLEARDOWN msg: */
-static int hf_sprt_payload_msg_cleardown_reason_code = -1;
-static int hf_sprt_payload_msg_cleardown_vendor_tag = -1;
-static int hf_sprt_payload_msg_cleardown_vendor_info = -1;
-/* PROF_XCHG msg: */
-static int hf_sprt_payload_msg_profxchg_v42_lapm = -1;
-static int hf_sprt_payload_msg_profxchg_annex_av42 = -1;
-static int hf_sprt_payload_msg_profxchg_v44_compr = -1;
-static int hf_sprt_payload_msg_profxchg_v42bis_compr = -1;
-static int hf_sprt_payload_msg_profxchg_mnp5_compr = -1;
-static int hf_sprt_payload_msg_profxchg_reserved = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr2_v42bis_compr_req = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr3and4_v42bis_num_codewords = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr5_v42bis_max_strlen = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr6_v44_capability = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr7_v44_compr_req = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr8and9_v44_num_codewords_trans = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr10and11_v44_num_codewords_recv = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr12_v44_max_strlen_trans = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr13_v44_max_strlen_recv = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr14and15_v44_history_len_trans = -1;
-static int hf_sprt_payload_msg_profxchg_xidlr16and17_v44_history_len_recv = -1;
-/* I_OCTET */
-static int hf_sprt_payload_i_octet_no_dlci = -1;
-static int hf_sprt_payload_i_octet_dlci_presence_unknown = -1;
-static int hf_sprt_payload_i_octet_dlci1 = -1;
-static int hf_sprt_payload_i_octet_cr = -1;
-static int hf_sprt_payload_i_octet_ea = -1;
-static int hf_sprt_payload_i_octet_dlci2 = -1;
-static int hf_sprt_payload_i_octet_dlci_setup_by_connect_frame = -1;
-
-/* I_OCTET_CS, I_CHAR_STAT_CS, I_CHAR_DYN_CS msgs: */
-static int hf_sprt_payload_data_cs = -1;
-static int hf_sprt_payload_data_reserved_bit = -1;
-static int hf_sprt_payload_data_num_data_bits = -1;
-static int hf_sprt_payload_data_parity_type = -1;
-static int hf_sprt_payload_num_stop_bits = -1;
-static int hf_sprt_payload_frame_reserved_bits = -1;
-static int hf_sprt_payload_frame_state = -1;
-static int hf_sprt_payload_rawoctet_n_field_present = -1;
-static int hf_sprt_payload_rawoctet_l = -1;
-static int hf_sprt_payload_rawoctet_n = -1;
-static int hf_sprt_payload_rawbit_included_fields_l = -1;
-static int hf_sprt_payload_rawbit_included_fields_lp = -1;
-static int hf_sprt_payload_rawbit_included_fields_lpn = -1;
-static int hf_sprt_payload_rawbit_len_a = -1;
-static int hf_sprt_payload_rawbit_len_b = -1;
-static int hf_sprt_payload_rawbit_len_c = -1;
-static int hf_sprt_payload_rawbit_p = -1;
-static int hf_sprt_payload_rawbit_n = -1;
-
-/* Preferences */
-static gboolean global_sprt_show_setup_info = TRUE; /* show how this SPRT stream got started */
-static gboolean global_sprt_show_dlci_info = TRUE; /* show DLCI in I_OCTET messages, including setup frame (if we can) */
-
-
-/* dissector handle */
-static dissector_handle_t sprt_handle;
-
-
-/* initialize the subtree pointers */
-static gint ett_sprt = -1;
-static gint ett_sprt_setup = -1;
-static gint ett_sprt_ack_fields = -1;
-static gint ett_payload = -1;
-static gint ett_init_msg_all_fields = -1;
-static gint ett_jminfo_msg_cat_data = -1;
-static gint ett_connect_msg_adt = -1;
-
-/* value strings & range strings */
-static const value_string sprt_transport_channel_characteristics[] = {
- { 0, "Unreliable, unsequenced" },
- { 1, "Reliable, sequenced" },
- { 2, "Expedited, reliable, sequenced" },
- { 3, "Unreliable, sequenced" },
- { 0, NULL}
-};
-
-static const range_string sprt_modem_relay_msg_id_name[] = {
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_NULL), "NULL reserved for ITU-T" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_INIT), "INIT" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_XID_XCHG), "XID_XCHG" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_JM_INFO), "JM_INFO" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_START_JM), "START_JM" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_CONNECT), "CONNECT" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_BREAK), "BREAK" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_BREAK_ACK), "BREAK_ACK" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_MR_EVENT), "MR_EVENT" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_CLEARDOWN), "CLEARDOWN" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_PROF_XCHG), "PROF_XCHG" },
- { SPRT_MODEM_RELAY_MSG_ID_RESERVED1_START, SPRT_MODEM_RELAY_MSG_ID_RESERVED1_END, "Reserved for ITU-T" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_RAW_OCTET), "I_RAW-OCTET" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_RAW_BIT), "I_RAW-BIT" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_OCTET), "I_OCTET" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT), "I_CHAR-STAT" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN), "I_CHAR-DYN" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_FRAME), "I_FRAME" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_OCTET_CS), "I_OCTET-CS" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT_CS), "I_CHAR-STAT-CS" },
- { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN_CS), "I_CHAR-DYN-CS" },
- { SPRT_MODEM_RELAY_MSG_ID_RESERVED2_START, SPRT_MODEM_RELAY_MSG_ID_RESERVED2_END, "Reserved for ITU-T" },
- { SPRT_MODEM_RELAY_MSG_ID_VENDOR_START, SPRT_MODEM_RELAY_MSG_ID_VENDOR_END, "Vendor-specific message" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_ecp_name[] = {
- { SPRT_VALUE_RANGE(SPRT_ECP_NO_LINK_LAYER_PROTO), "No link layer protocol" },
- { SPRT_VALUE_RANGE(SPRT_ECP_V42_LAPM), "V.42/LAPM" },
- { SPRT_VALUE_RANGE(SPRT_ECP_ANNEX_AV42_1996), "Annex A/V.42(1996)" },
- { SPRT_ECP_RESERVED_START, SPRT_ECP_RESERVED_END, "Reserved for ITU-T" },
- { 0, 0, NULL }
-};
-
-static const value_string sprt_jm_info_cat_id_name[] = {
- { SPRT_JM_INFO_CAT_ID_CALL_FUNCT, "Call function" },
- { SPRT_JM_INFO_CAT_ID_MOD_MODES, "Modulation modes" },
- { SPRT_JM_INFO_CAT_ID_PROTOCOLS, "Protocols" },
- { SPRT_JM_INFO_CAT_ID_PSTN_ACCESS, "PSTN access" },
- { SPRT_JM_INFO_CAT_ID_PCM_MODEM_AVAIL, "PCM modem availability" },
- { SPRT_JM_INFO_CAT_ID_CATEGORY_EXTENSION, "Extension of current category" },
- { 0, NULL }
-};
-
-static const value_string sprt_jminfo_tbc_call_funct_name[] = {
- { SPRT_JMINFO_TBC_CALL_FUNCT_PSTN_MULTIMEDIA_TERM, "PSTN Multimedia terminal (ITU-T Rec. H.324)" },
- { SPRT_JMINFO_TBC_CALL_FUNCT_TEXTPHONE_ITU_T_REC_V18, "Textphone (ITU-T Rec. V.18)" },
- { SPRT_JMINFO_TBC_CALL_FUNCT_VIDEOTEXT_ITU_T_REC_T101, "Videotext (ITU-T Rec. T.101)" },
- { SPRT_JMINFO_TBC_CALL_FUNCT_TRANS_FAX_ITU_T_REC_T30, "Transmit facsimilie from call terminal (ITU-T Rec. T.30)" },
- { SPRT_JMINFO_TBC_CALL_FUNCT_RECV_FAX_ITU_T_REC_T30, "Receive facsimilie at call terminal (ITU-T Rec. T.30)" },
- { SPRT_JMINFO_TBC_CALL_FUNCT_DATA_V_SERIES_MODEM_REC, "Data (V-series modem Recommendations)" },
- { 0, NULL }
-};
-
-static const range_string sprt_jminfo_tbc_protocol_name[] = {
- { SPRT_VALUE_RANGE(SPRT_JMINFO_TBC_PROTOCOL_LAPM_ITU_T_REC_V42), "LAPM protocol according to ITU-T Rec. V.42" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_selmod_name[] = {
- { SPRT_VALUE_RANGE(SPRT_SELMOD_NULL), "NULL" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V92), "V.92" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V91), "V.91" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V90), "V.90" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V34), "V.34" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V32_BIS), "V.32bis" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V32), "V.32" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V22_BIS), "V.22bis" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V22), "V.22" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V17), "V.17" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V29), "V.29" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V27_TER), "V.27ter" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V26_TER), "V.26ter" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V26_BIS), "V.26bis" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V23), "V.23" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_V21), "V.21" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_BELL_212), "Bell 212" },
- { SPRT_VALUE_RANGE(SPRT_SELMOD_BELL_103), "Bell 103" },
- { SPRT_SELMOD_VENDOR_START, SPRT_SELMOD_VENDOR_END, "Vendor-specific modulation" },
- { SPRT_SELMOD_RESERVED_START, SPRT_SELMOD_RESERVED_END, "Reserved for ITU-T" },
- { 0, 0, NULL }
-};
-
-static const value_string sprt_comp_direction[] = {
- { SPRT_COMPR_DIR_NO_COMPRESSION, "None" },
- { SPRT_COMPR_DIR_TRANSMIT, "Transmit" },
- { SPRT_COMPR_DIR_RECEIVE, "Receive" },
- { SPRT_COMPR_DIR_BIDIRECTIONAL, "Bidirectional" },
- { 0, NULL }
-};
-
-static const range_string sprt_selected_compr_name[] = {
- { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_NONE), "None" },
- { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_V42_BIS), "V.42bis" },
- { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_V44), "V.44" },
- { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_MNP5), "MNP5" },
- { SPRT_SELECTED_COMPR_RESERVED_START, SPRT_SELECTED_COMPR_RESERVED_END, "Reserved by ITU-T" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_selected_err_corr_name[] = {
- { SPRT_VALUE_RANGE(SPRT_SELECTED_ERR_CORR_V14_OR_NONE), "V.14 or no error correction protocol" },
- { SPRT_VALUE_RANGE(SPRT_SELECTED_ERR_CORR_V42_LAPM), "V.42/LAPM" },
- { SPRT_VALUE_RANGE(SPRT_SELECTED_ERR_CORR_ANNEX_AV42), "Annex A/V.42" },
- { SPRT_SELECTED_ERR_CORR_RESERVED_START, SPRT_SELECTED_ERR_CORR_RESERVED_END, "Reserved for ITU-T" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_break_src_proto_name[] = {
- { SPRT_VALUE_RANGE(SPRT_BREAK_SRC_PROTO_V42_LAPM), "V.42/LAPM" },
- { SPRT_VALUE_RANGE(SPRT_BREAK_SRC_PROTO_ANNEX_AV42_1996), "Annex A/V.42(1996)" },
- { SPRT_VALUE_RANGE(SPRT_BREAK_SRC_PROTO_V14), "V.14" },
- { SPRT_BREAK_SRC_PROTO_RESERVED_START, SPRT_BREAK_SRC_PROTO_RESERVED_END, "Reserved for ITU-T" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_break_type_name[] = {
- { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_NOT_APPLICABLE), "Not applicable" },
- { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_DESTRUCTIVE_AND_EXPEDITED), "Destructive and expedited" },
- { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_NONDESTRUCTIVE_AND_EXPEDITED), "Non-destructive and expedited" },
- { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_NONDESTRUCTIVE_AND_NONEXPEDITED), "Non-destructive and non-expedited" },
- { SPRT_BREAK_TYPE_RESERVED_START, SPRT_BREAK_TYPE_RESERVED_END, "Reserved for ITU-T" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_mrevent_id_name[] = {
- { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_NULL), "NULL" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_RATE_RENEGOTIATION), "Rate renegotiation" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_RETRAIN), "Retrain" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_PHYSUP), "Physical layer ready" }, /* reason code should be 0 */
- { SPRT_MREVT_EVENT_ID_RESERVED_START, SPRT_MREVT_EVENT_ID_RESERVED_END, "Reserved for ITU-T" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_mrevent_reason_code_name[] = {
- { SPRT_VALUE_RANGE(SPRT_MREVT_REASON_CODE_NULL), "Null/not applicable" }, /* for eventid = PHYSUP */
- { SPRT_VALUE_RANGE(SPRT_MREVT_REASON_CODE_INIT), "Initiation" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_REASON_CODE_RESPONDING), "Responding" },
- { SPRT_MREVT_REASON_CODE_RESERVED_START, SPRT_MREVT_REASON_CODE_RESERVED_END, "Reserved for ITU-T" },
- { 0, 0, NULL }
-};
-
-static const range_string sprt_mrevent_phys_layer_symbol_rate[] = {
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_NULL), "Null/not applicable" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_600), "600" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_1200), "1200" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_1600), "1600" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_2400), "2400" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_2743), "2743" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_3000), "3000" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_3200), "3200" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_3429), "3249" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_8000), "8000" },
- { SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_RESERVED_START, SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_RESERVED_END, "Reserved for ITU-T" },
- { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_UNSPECIFIED), "Unspecified" },
- { 0, 0, NULL }
-};
-
-static const value_string sprt_cleardown_reason[] = {
- { SPRT_CLEARDOWN_RIC_UNKNOWN, "Unknown/unspecified" },
- { SPRT_CLEARDOWN_RIC_PHYSICAL_LAYER_RELEASE, "Physical layer release" },
- { SPRT_CLEARDOWN_RIC_LINK_LAYER_DISCONNECT, "Link layer disconnect" },
- { SPRT_CLEARDOWN_RIC_DATA_COMPRESSION_DISCONNECT, "Data compression disconnect" },
- { SPRT_CLEARDOWN_RIC_ABORT, "Abort" },
- { SPRT_CLEARDOWN_RIC_ON_HOOK, "On hook" },
- { SPRT_CLEARDOWN_RIC_NETWORK_LAYER_TERMINATION, "Network layer termination" },
- { SPRT_CLEARDOWN_RIC_ADMINISTRATIVE, "Administrative" },
- { 0, NULL }
-};
-
-static const value_string sprt_prof_xchg_support[] = {
- { SPRT_PROF_XCHG_SUPPORT_NO, "No" },
- { SPRT_PROF_XCHG_SUPPORT_YES, "Yes" },
- { SPRT_PROF_XCHG_SUPPORT_UNKNOWN, "Unknown" },
- { 0, NULL }
-};
-
-static const range_string sprt_payload_dlci1[] = {
- { SPRT_VALUE_RANGE(SPRT_PAYLOAD_DLCI1_DTE2DTE), "DTE-to-DTE (V.24 interfaces) data" },
- { SPRT_PAYLOAD_DLCI1_RESERVED_START, SPRT_PAYLOAD_DLCI1_RESERVED_END, "Reserved for for ITU-T" },
- { SPRT_PAYLOAD_DLCI1_NOT_RESERVED_START, SPRT_PAYLOAD_DLCI1_NOT_RESERVED_END, "Not reserved for for ITU-T" },
- { SPRT_VALUE_RANGE(SPRT_PAYLOAD_DLCI1_CTRLFN2CTRLFN), "Control-function to control-function information" },
- { 0, 0, NULL }
-};
-
-static const true_false_string sprt_payload_ea_bit[] = {
- { "Last otcet of address feld", "Another octet of address field follows" }
-};
-
-static const range_string sprt_payload_dlci2[] = {
- { SPRT_PAYLOAD_DLCI2_START, SPRT_PAYLOAD_DLCI2_END, "Reserved by ITU-T for further study" },
- { 0, 0, NULL }
-};
-
-static const value_string sprt_payload_data_bits[] = {
- { SPRT_PAYLOAD_D_0, "5 bits" },
- { SPRT_PAYLOAD_D_1, "6 bits" },
- { SPRT_PAYLOAD_D_2, "7 bits" },
- { SPRT_PAYLOAD_D_3, "8 bits" },
- { 0, NULL }
-};
-
-static const value_string sprt_payload_parity[] = {
- { SPRT_PAYLOAD_P_0, "Unknown" },
- { SPRT_PAYLOAD_P_1, "None" },
- { SPRT_PAYLOAD_P_2, "Even parity" },
- { SPRT_PAYLOAD_P_3, "Odd parity" },
- { SPRT_PAYLOAD_P_4, "Space parity" },
- { SPRT_PAYLOAD_P_5, "Mark parity" },
- { SPRT_PAYLOAD_P_6, "Reserved" },
- { SPRT_PAYLOAD_P_7, "Reserved" },
- { 0, NULL }
-};
-
-static const value_string sprt_payload_stop_bits[] = {
- { SPRT_PAYLOAD_S_0, "1 stop bit" },
- { SPRT_PAYLOAD_S_1, "2 stop bits" },
- { SPRT_PAYLOAD_S_2, "Reserved" },
- { SPRT_PAYLOAD_S_3, "Reserved" },
- { 0, NULL }
-};
-
-static const value_string sprt_payload_frame_state[] = {
- { SPRT_PAYLOAD_FR_0, "Data frame without termination" },
- { SPRT_PAYLOAD_FR_1, "Data frame with termination" },
- { SPRT_PAYLOAD_FR_2, "Data frame with abort termination" },
- { SPRT_PAYLOAD_FR_3, "Undefined" },
- { 0, NULL }
-};
-
-
-
-/* look for a conversation & return the associated data */
-static struct _sprt_conversation_info* find_sprt_conversation_data(packet_info *pinfo)
-{
- conversation_t *p_conv = NULL;
- struct _sprt_conversation_info *p_conv_data = NULL;
- /* Use existing packet info if available */
- p_conv = find_conversation(pinfo->fd->num,
- &pinfo->src,
- &pinfo->dst,
- pinfo->ptype,
- pinfo->srcport,
- pinfo->destport,
- NO_ADDR_B|NO_PORT_B);
- if(p_conv)
- {
- p_conv_data = (struct _sprt_conversation_info*)conversation_get_proto_data(p_conv, proto_sprt);
- }
- return p_conv_data;
-}
-
-
-
-/* set up SPRT conversation */
-void sprt_add_address(packet_info *pinfo,
- address *addr, int port,
- int other_port,
- const gchar *setup_method,
- guint32 setup_frame_number)
-{
- address null_addr;
- conversation_t* p_conv;
- struct _sprt_conversation_info *p_conv_data = NULL;
-
- /*
- * If this isn't the first time this packet has been processed,
- * we've already done this work, so we don't need to do it
- * again.
- */
- if (pinfo->fd->flags.visited)
- {
- return;
- }
-
- SET_ADDRESS(&null_addr, AT_NONE, 0, NULL);
-
- /*
- * Check if the ip address and port combination is not
- * already registered as a conversation.
- */
- p_conv = find_conversation(setup_frame_number, addr, &null_addr, PT_UDP, port, other_port,
- NO_ADDR_B | (!other_port ? NO_PORT_B : 0));
-
- /*
- * If not, create a new conversation.
- */
- if (!p_conv || p_conv->setup_frame != setup_frame_number) {
- p_conv = conversation_new(setup_frame_number, addr, &null_addr, PT_UDP,
- (guint32)port, (guint32)other_port,
- NO_ADDR2 | (!other_port ? NO_PORT2 : 0));
- }
-
- /* Set dissector */
- conversation_set_dissector(p_conv, sprt_handle);
-
- /*
- * Check if the conversation has data associated with it.
- */
- p_conv_data = conversation_get_proto_data(p_conv, proto_sprt);
-
- /*
- * If not, add a new data item.
- */
- if (!p_conv_data) {
- /* Create conversation data */
- p_conv_data = se_alloc(sizeof(struct _sprt_conversation_info));
- p_conv_data->stream_started = FALSE;
- p_conv_data->seqnum[0] = 0;
- p_conv_data->seqnum[1] = 0;
- p_conv_data->seqnum[2] = 0;
- p_conv_data->seqnum[3] = 0;
- p_conv_data->i_octet_dlci_status = DLCI_UNKNOWN;
- p_conv_data->connect_frame_number = 0;
- conversation_add_proto_data(p_conv, proto_sprt, p_conv_data);
- }
-
- /* Update the conversation data. */
- g_strlcpy(p_conv_data->method, setup_method, SPRT_CONV_MAX_SETUP_METHOD_SIZE);
- p_conv_data->frame_number = setup_frame_number;
-}
-
-
-
-/* Display setup info */
-static void show_setup_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- struct _sprt_conversation_info *p_conv_data;
- proto_tree *sprt_setup_tree;
- proto_item *ti;
-
- /* look up the conversation & get the data */
- p_conv_data = find_sprt_conversation_data(pinfo);
-
- if(!p_conv_data)
- {
- proto_tree_add_string_format(tree, hf_sprt_setup, tvb, 0, 0, "", "No setup info found");
- return;
- }
-
- /* Create setup info subtree with summary info. */
- ti = proto_tree_add_string_format(tree, hf_sprt_setup, tvb, 0, 0,
- "",
- "Stream setup by %s (frame %u)",
- p_conv_data->method,
- p_conv_data->frame_number);
- PROTO_ITEM_SET_GENERATED(ti);
- sprt_setup_tree = proto_item_add_subtree(ti, ett_sprt_setup);
- if (sprt_setup_tree)
- {
- /* Add details into subtree */
- proto_item* item = proto_tree_add_uint(sprt_setup_tree, hf_sprt_setup_frame,
- tvb, 0, 0, p_conv_data->frame_number);
- PROTO_ITEM_SET_GENERATED(item);
- item = proto_tree_add_string(sprt_setup_tree, hf_sprt_setup_method,
- tvb, 0, 0, p_conv_data->method);
- PROTO_ITEM_SET_GENERATED(item);
- }
-}
-
-
-
-/* heuristic dissector */
-static gboolean
-dissect_sprt_heur(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_)
-{
- guint8 octet, extension_bit, reserved_bit, payload_type;
- guint16 word, tc, seqnum;
- unsigned int offset = 0;
-
- /* This is a heuristic dissector, which means we get all the UDP
- * traffic not sent to a known dissector and not claimed by
- * a heuristic dissector called before us!
- */
-
- if(tvb_length(tvb) < 6)
- return FALSE; /* packet is waay to short */
-
- /* Get the fields in the first two octets */
- extension_bit = tvb_get_guint8(tvb, offset) & 0x7F;
- if(extension_bit != 0) /* must be 0 */
- return FALSE;
-
- octet = tvb_get_guint8(tvb, offset + 1);
- reserved_bit = octet & 80;
- payload_type = octet & 0x7F;
- if(reserved_bit != 0) /* must be 0 */
- return FALSE;
- if(payload_type < 96 || payload_type > 128) /* value within RTP dynamic payload type range */
- return FALSE;
-
- word = tvb_get_ntohs(tvb, offset + 2);
- tc = word >> 14;
- seqnum = word & 0x3F;
- if((tc == 0 || tc == 3) && (seqnum != 0)) /* seqnum only applies if tc is 1 or 2 */
- return FALSE;
-
- return TRUE;
-}
-
-
-/* code to actually dissect the packet payload data */
-static int
-dissect_sprt_data(tvbuff_t *tvb,
- packet_info *pinfo,
- struct _sprt_conversation_info *p_conv_data,
- proto_tree *sprt_tree,
- unsigned int offset,
- guint payload_length)
-{
- proto_item *ti;
- proto_tree *sprt_payload_tree, *field_subtree;
- guint8 octet, payload_msgid, category_id;
- guint8 selcompr, mr_event_id;
- guint16 word, category_count;
-
- if(payload_length > 0)
- {
- ti = proto_tree_add_uint(sprt_tree, hf_sprt_payload, tvb, offset, 1, payload_length);
- proto_item_set_len(ti, payload_length);
-
- sprt_payload_tree = proto_item_add_subtree(ti, ett_payload);
-
- payload_msgid = tvb_get_guint8(tvb, offset) & 0x7F;
-
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_message_id, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
-
- /* what kind of message is this? */
- col_append_fstr(pinfo->cinfo, COL_INFO, ", %s(%d)", rval_to_str(payload_msgid, sprt_modem_relay_msg_id_name, "Unknown"), payload_msgid);
-
- /* now parse payload stuff after ext. bit & msgid */
- switch(payload_msgid)
- {
- case SPRT_MODEM_RELAY_MSG_ID_INIT:
- /* make subtree */
- ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_init_all_fields, tvb, offset, 2, ENC_BIG_ENDIAN);
- field_subtree = proto_item_add_subtree(ti, ett_init_msg_all_fields);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_necrxch, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_ecrxch, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_xid_prof_exch, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_assym_data_types, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_raw_bit, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_frame, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_stat, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn, tvb, offset, 2, ENC_BIG_ENDIAN);
- /* from V.150.1 amendment 2 (5-2006): */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_octet_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_stat_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- break;
- case SPRT_MODEM_RELAY_MSG_ID_XID_XCHG:
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_ecp, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_v42bis, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_v44, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_mnp5, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr2_v42bis_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr3and4_v42bis_num_codewords, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr5_v42bis_max_strlen, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr6_v44_capability, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr7_v44_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr8and9_v44_num_codewords_trans, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr10and11_v44_num_codewords_recv, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr12_v44_max_strlen_trans, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr13_v44_max_strlen_recv, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr14and15_v44_history_len_trans, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr16and17_v44_history_len_recv, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- break;
- case SPRT_MODEM_RELAY_MSG_ID_JM_INFO:
- category_count = 1;
- do /* there may be multiple categories */
- {
- word = tvb_get_ntohs(tvb, offset);
- category_id = (word >> 12);
-
- ti = proto_tree_add_uint_format_value(sprt_payload_tree, hf_sprt_payload_msg_jminfo_category_data, tvb, offset, 2, word,
- "Item #%d: %s (0x%04x)", category_count, val_to_str(category_id, sprt_jm_info_cat_id_name, "Unknown"), category_id);
- category_count++;
- field_subtree = proto_item_add_subtree(ti, ett_jminfo_msg_cat_data);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_id, tvb, offset, 2, ENC_BIG_ENDIAN);
-
- switch(category_id)
- {
- case SPRT_JM_INFO_CAT_ID_CALL_FUNCT: /* 0x8 */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_call_function, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN);
- break;
- case SPRT_JM_INFO_CAT_ID_MOD_MODES: /* 0xA */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v34_duplex, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v34_half_duplex, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v32bis_v32, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v22bis_v22, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v17, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v29_half_duplex, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v27ter, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v26ter, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v26bis, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v23_duplex, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v23_half_duplex, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v21, tvb, offset, 2, ENC_BIG_ENDIAN);
- break;
- case SPRT_JM_INFO_CAT_ID_PROTOCOLS: /* 0x5 */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_protocols, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN);
- break;
- case SPRT_JM_INFO_CAT_ID_PSTN_ACCESS: /* 0xB */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pstn_access_call_dce_cell, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pstn_access_answ_dce_cell, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pstn_access_dce_on_digital_net, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN);
- break;
- case SPRT_JM_INFO_CAT_ID_PCM_MODEM_AVAIL: /* 0xE */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_analog, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_digital, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pcm_modem_avail_v91, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN);
- break;
- case SPRT_JM_INFO_CAT_ID_CATEGORY_EXTENSION: /* 0x0 */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_ext_info, tvb, offset, 2, ENC_BIG_ENDIAN);
- break;
- default: /* unknown category ID */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_unk_category_info, tvb, offset, 2, ENC_BIG_ENDIAN);
- break;
- }
- offset += 2;
- } while(tvb_length_remaining(tvb, offset) >= 2);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_START_JM:
- /* No additional content */
- break;
- case SPRT_MODEM_RELAY_MSG_ID_CONNECT: /***/
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_selmod, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_dir, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- selcompr = (tvb_get_guint8(tvb, offset) & 0xF0) >> 4;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_selected_compr, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_selected_err_corr, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_tdsr, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_rdsr, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- word = tvb_get_ntohs(tvb, offset);
- /* is DLCI enabled (used w/I_OCTET messages)? */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_dlci_enabled, tvb, offset, 2, ENC_BIG_ENDIAN);
- /* have we previously seen a CONNECT msg in this conversation (i.e., do we know if DLCI is used w/I_OCTET?) */
- if(p_conv_data->connect_frame_number == 0)
- {
- p_conv_data->connect_frame_number = pinfo->fd->num;
- if(word & 0x8000)
- {
- p_conv_data->i_octet_dlci_status = DLCI_PRESENT;
- } else {
- p_conv_data->i_octet_dlci_status = DLCI_ABSENT;
- }
- }
-
- /* do subtree for available data types */
- ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_avail_data_types, tvb, offset, 2, ENC_BIG_ENDIAN);
- field_subtree = proto_item_add_subtree(ti, ett_connect_msg_adt);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_octet_no_format_no_dlci, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_raw_bit, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_frame, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_stat, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_dyn, tvb, offset, 2, ENC_BIG_ENDIAN);
- /* from V.150.1 amendment 2 (5-2006): */
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_octet_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_stat_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_dyn_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- if(selcompr != SPRT_SELECTED_COMPR_NONE &&
- selcompr != SPRT_SELECTED_COMPR_MNP5)
- {
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_trans_dict_sz, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_recv_dict_sz, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_trans_str_len, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_recv_str_len, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- }
- if(selcompr != SPRT_SELECTED_COMPR_NONE &&
- selcompr != SPRT_SELECTED_COMPR_MNP5 &&
- selcompr != SPRT_SELECTED_COMPR_V42_BIS)
- {
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_trans_hist_sz, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_recv_hist_sz, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- }
- break;
- case SPRT_MODEM_RELAY_MSG_ID_BREAK: /* no additional info */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_break_source_proto, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_break_type, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_break_length, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- break;
- case SPRT_MODEM_RELAY_MSG_ID_BREAK_ACK:
- /* No additional content */
- break;
- case SPRT_MODEM_RELAY_MSG_ID_MR_EVENT:
- mr_event_id = tvb_get_guint8(tvb, offset);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_event_id, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_reason_code, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- if(mr_event_id == SPRT_MREVT_EVENT_ID_PHYSUP)
- {
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_selmod, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_txsen, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_rxsen, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_tdsr, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_rdsr, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- /* The next two fields are "optional"
- * they should only appear w/PHYSUP (MR_EVENT id = 3) messages, when TxSR and RxSR are true
- */
- if(tvb_reported_length_remaining(tvb, offset) >= 2)
- {
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_txsr, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_rxsr, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- }
- }
- break;
- case SPRT_MODEM_RELAY_MSG_ID_CLEARDOWN:
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_cleardown_reason_code, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_cleardown_vendor_tag, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_cleardown_vendor_info, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- break;
- case SPRT_MODEM_RELAY_MSG_ID_PROF_XCHG:
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_v42_lapm, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_annex_av42, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_v44_compr, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_v42bis_compr, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_mnp5_compr, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_reserved, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr2_v42bis_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr3and4_v42bis_num_codewords, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr5_v42bis_max_strlen, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr6_v44_capability, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr7_v44_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr8and9_v44_num_codewords_trans, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr10and11_v44_num_codewords_recv, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr12_v44_max_strlen_trans, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr13_v44_max_strlen_recv, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr14and15_v44_history_len_trans, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr16and17_v44_history_len_recv, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_RAW_OCTET: /* data */
- octet = tvb_get_guint8(tvb, offset);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawoctet_n_field_present, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawoctet_l, tvb, offset, 1, ENC_BIG_ENDIAN);
- if(octet & 0x80) /* is N field present? */
- {
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawoctet_n, tvb, offset, 1, ENC_BIG_ENDIAN);
- }
- offset++;
- payload_length--;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_NA);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_RAW_BIT: /* data */
- /*
- * L, P, N fields need to be parsed
- */
- switch((tvb_get_guint8(tvb, offset) & 0xC0) >> 6)
- {
- case 0x0: /* 00: get L (6 bits) */
- /* display leading "00" bits, followed by L */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_included_fields_l, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_len_a, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- break;
- case 0x1: /* 01: get L (3 bits) & P (3 bits) */
- /* display leading "01" bits, followed by L,P */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_included_fields_lp, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_len_b, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_p, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- break;
- default: /* 10, 11: get L (4 bits), P (3 bits), N (8 bits) */
- /* display leading "1" bit, followed by L,P,N */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_included_fields_lpn, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_len_c, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_p, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_n, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- break;
- }
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_OCTET: /* data */
- if(global_sprt_show_dlci_info)
- {
- /* DLCI field may be 0, 1, or 2 bytes, depending on CONNECT message (see "DLCI enabled")...
- * or UNKNOWN if we don't see the CONNECT message
- */
- switch(p_conv_data->i_octet_dlci_status)
- {
- case DLCI_PRESENT:
- octet = tvb_get_guint8(tvb, offset);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_dlci1, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_cr, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_ea, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- /* check address extension... if ea bit == 0, then DLCI has another octet (see ITU-T V42 spec for more info) */
- if(!(octet & 0x01))
- {
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_dlci2, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_ea, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- }
- ti = proto_tree_add_uint(sprt_payload_tree, hf_sprt_payload_i_octet_dlci_setup_by_connect_frame, tvb, 0, 0, p_conv_data->connect_frame_number);
- PROTO_ITEM_SET_GENERATED(ti);
- break;
- case DLCI_ABSENT:
- ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_no_dlci, tvb, 0, 0, ENC_NA);
- PROTO_ITEM_SET_GENERATED(ti);
- ti = proto_tree_add_uint(sprt_payload_tree, hf_sprt_payload_i_octet_dlci_setup_by_connect_frame, tvb, 0, 0, p_conv_data->connect_frame_number);
- PROTO_ITEM_SET_GENERATED(ti);
- break;
- case DLCI_UNKNOWN: /* e.g., we didn't see the CONNECT msg so we don't know if there is a DLCI */
- default:
- ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_dlci_presence_unknown, tvb, 0, 0, ENC_NA);
- PROTO_ITEM_SET_GENERATED(ti);
- break;
- }
- }
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT: /* data */
- /* r: 1-bit reserved */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* D: 2-bit field indicating # of data bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* P: 3-bit field for parity type */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* S: 2-bit field indicating # of stop bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- /* octets */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN: /* data */
- /* r: 1-bit reserved */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* D: 2-bit field indicating # of data bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* P: 3-bit field for parity type */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* S: 2-bit field indicating # of stop bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- /* octets */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_FRAME: /* data */
- /* R: 6 reserved bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_frame_reserved_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* Fr: data frame state */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_frame_state, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- /* octets */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_OCTET_CS: /* data */
- /* CS: 2-byte character sequence number */
- /* TODO - does this msg type ever have a DLCI? */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- payload_length -= 2;
- /* octets */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT_CS: /* data */
- /* r: 1-bit reserved */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* D: 2-bit field indicating # of data bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* P: 3-bit field for parity type */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* S: 2-bit field indicating # of stop bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- /* CS: 2-byte character sequence number */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- payload_length -= 2;
- /* octets */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN_CS: /* data */
- /* r: 1-bit reserved */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* D: 2-bit field indicating # of data bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* P: 3-bit field for parity type */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN);
- /* S: 2-bit field indicating # of stop bits */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
- payload_length--;
- /* CS: 2-byte character sequence number */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_cs, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- payload_length -= 2;
- /* octets */
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- default:
- proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN);
- break;
- }
- } else {
- proto_tree_add_item(sprt_tree, hf_sprt_payload_no_data, tvb, offset, 0, ENC_NA);
- col_append_fstr(pinfo->cinfo, COL_INFO, ", No Payload");
- }
-
- return tvb_length(tvb);
-}
-
-static int
-dissect_sprt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
-{
- /* Set up structures needed to add the protocol subtree and manage it */
- proto_item *ti;
- proto_tree *sprt_tree = NULL;
- proto_tree *sprt_ack_field_tree = NULL;
- guint16 word1;
- unsigned int offset = 0;
- guint payload_length;
- struct _sprt_conversation_info *p_conv_data = NULL;
- int i;
-
- guint16 tc;
- guint16 seqnum; /* 0 if TC = 0 or if no payload */
- guint16 noa;
- /* ack fields */
- /*guint16 tcn;*/
- /*guint16 sqn;*/
-
- /* Make entries in Protocol column and Info column on summary display */
- col_set_str(pinfo->cinfo, COL_PROTOCOL, "SPRT");
- col_clear(pinfo->cinfo, COL_INFO);
-
- if(tree)
- {
- /* create the trees */
- ti = proto_tree_add_item(tree, proto_sprt, tvb, 0, -1, ENC_NA);
- sprt_tree = proto_item_add_subtree(ti, ett_sprt);
-
- /* show conversation setup info */
- if (global_sprt_show_setup_info)
- {
- show_setup_info(tvb, pinfo, sprt_tree);
- }
- }
-
- /*SPRT header packet format
- +------+-------+-------+-------+-------+-------+---------+-------+
- |0 |1 |2 |3 |4 |5 |6 |7 |
- +------+-------+-------+-------+-------+-------+---------+-------+
- | X | SSID |
- +----------------------------------------------------------------+
- | R | PT |
- +--------------+-------------------------------------------------+
- | TC | Sequence Number |
- +--------------+-------------------------------------------------+
- | Sequence Number |
- +----------------------------------------------------------------+
- | NOA | Base Sequence Number |
- +--------------+-------------------------------------------------+
- | Base Sequence Number |
- +----------------------------------------------------------------+
- | TCN | SQN |
- +--------------+-------------------------------------------------+
- | SQN |
- +----------------------------------------------------------------+
- | TCN | SQN |
- +--------------+-------------------------------------------------+
- | SQN |
- +----------------------------------------------------------------+
- | TCN | SQN |
- +--------------+-------------------------------------------------+
- | SQN |
- +----------------------------------------------------------------+
- */
-
- /* Get fields needed for further dissection */
- word1 = tvb_get_ntohs(tvb, offset + 2);
- tc = (word1 & 0xC000) >> 14;
- seqnum = word1 & 0x3FFF;
-
- noa = (tvb_get_ntohs(tvb, offset + 4) & 0xC000) >> 14;
-
- /* Get conversation data, or create it if not found */
- p_conv_data = find_sprt_conversation_data(pinfo);
- if(!p_conv_data)
- {
- sprt_add_address(pinfo,
- &pinfo->src, pinfo->srcport,
- 0,
- "SPRT stream",
- pinfo->fd->num);
- p_conv_data = find_sprt_conversation_data(pinfo);
- }
-
- if(tree)
- {
- proto_tree_add_item(sprt_tree, hf_sprt_header_extension_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_tree, hf_sprt_subsession_id, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
-
- proto_tree_add_item(sprt_tree, hf_sprt_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_tree, hf_sprt_payload_type, tvb, offset, 1, ENC_BIG_ENDIAN);
- offset++;
-
- proto_tree_add_item(sprt_tree, hf_sprt_transport_channel_id, tvb, offset, 2, ENC_BIG_ENDIAN);
- ti = proto_tree_add_item(sprt_tree, hf_sprt_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
- if(tc == 0 && seqnum != 0)
- expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_WARN, "Should be 0 for transport channel 0");
-
- p_conv_data->seqnum[tc] = seqnum; /* keep track of seqnum values */
- offset+=2;
-
- proto_tree_add_item(sprt_tree, hf_sprt_number_of_ack_fields, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_tree, hf_sprt_base_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset+=2;
-
- if(noa) /* parse ack fields? There can be 0 - 3 */
- {
- ti = proto_tree_add_item(sprt_tree, hf_sprt_ack_field_items, tvb, offset, 2, ENC_BIG_ENDIAN);
- sprt_ack_field_tree = proto_item_add_subtree(ti, ett_sprt_ack_fields);
-
- for(i = 0; i < noa; i++)
- {
- proto_tree_add_item(sprt_ack_field_tree, hf_sprt_transport_channel_item, tvb, offset, 2, ENC_BIG_ENDIAN);
- proto_tree_add_item(sprt_ack_field_tree, hf_sprt_sequence_item, tvb, offset, 2, ENC_BIG_ENDIAN);
- offset += 2;
- }
- }
-
- /* put details in the info column */
- col_append_fstr(pinfo->cinfo, COL_INFO, "TC=%u", tc);
- if(tc != 0)
- col_append_fstr(pinfo->cinfo, COL_INFO, ", Seq=%u", seqnum);
-
- /* dissect the payload, if any */
- payload_length = tvb_length(tvb) - (6 + noa * 2); /* total sprt length - header stuff */
- dissect_sprt_data(tvb, pinfo, p_conv_data, sprt_tree, offset, payload_length);
-
- if(noa)
- col_append_fstr(pinfo->cinfo, COL_INFO, " (ACK fields present)");
- }
-
- return tvb_length(tvb);
-}
-
-
-
-/* register the protocol with Wireshark */
-void
-proto_register_sprt(void)
-{
- module_t *sprt_module;
-
- static hf_register_info hf[] =
- {
- /* set up fields */
- {
- &hf_sprt_setup,
- {
- "Stream setup",
- "sprt.setup",
- FT_STRING,
- BASE_NONE,
- NULL,
- 0x0,
- "Stream setup, method and frame number", HFILL
- }
- },
- {
- &hf_sprt_setup_frame,
- {
- "Setup frame",
- "sprt.setup-frame",
- FT_FRAMENUM,
- BASE_NONE,
- NULL,
- 0x0,
- "Frame that set up this stream", HFILL
- }
- },
- {
- &hf_sprt_setup_method,
- {
- "Setup Method",
- "sprt.setup-method",
- FT_STRING,
- BASE_NONE,
- NULL,
- 0x0,
- "Method used to set up this stream", HFILL
- }
- },
- /* SPRT header fields: */
- {
- &hf_sprt_header_extension_bit,
- {
- "Header extension bit",
- "sprt.x",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_set_notset),
- 0x80,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_subsession_id,
- {
- "Sub session ID",
- "sprt.ssid",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x7F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_reserved_bit,
- {
- "Reserved bit",
- "sprt.reserved",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_set_notset),
- 0x80,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_type,
- {
- "Payload type",
- "sprt.pt",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x7F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_transport_channel_id,
- {
- "Transport channel ID",
- "sprt.tc",
- FT_UINT16,
- BASE_DEC,
- VALS(sprt_transport_channel_characteristics),
- 0xC000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_sequence_number,
- {
- "Sequence number",
- "sprt.seq",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x3FFF,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_number_of_ack_fields,
- {
- "Number of ACK fields",
- "sprt.noa",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0xC000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_base_sequence_number,
- {
- "Base sequence number",
- "sprt.bsqn",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x3FFF,
- NULL, HFILL
- }
- },
- /* ACK fields, if any: */
- {
- &hf_sprt_ack_field_items, /* 0 to 3 items (TCN + SQN) */
- {
- "ACK fields",
- "sprt.ack.field",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0xC000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_transport_channel_item,
- {
- "Transport control channel",
- "sprt.tcn",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0xC000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_sequence_item,
- {
- "Sequence number",
- "sprt.sqn",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x3FFF,
- NULL, HFILL
- }
- },
- /* SPRT payload, if any: */
- {
- &hf_sprt_payload,
- {
- "Payload (in bytes)",
- "sprt.payload",
- FT_UINT32,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_no_data,
- {
- "No payload",
- "sprt.payload",
- FT_NONE,
- BASE_NONE,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_reserved_bit,
- {
- "Reserved bit",
- "sprt.payload.reserved_bit",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_set_notset),
- 0x80,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_message_id,
- {
- "Payload message ID",
- "sprt.payload.msgid",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_modem_relay_msg_id_name),
- 0x7F,
- NULL, HFILL
- }
- },
- /* SPRT payload fields, if any (depend on payload msgid): */
- /* INIT message */
- {
- &hf_sprt_payload_msg_init_all_fields,
- {
- "Init message fields",
- "sprt.payload.msg_init.all_fields",
- FT_UINT16,
- BASE_HEX,
- NULL,
- 0xFFFF, /* 0x0 */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_necrxch,
- {
- "NECRxCH",
- "sprt.payload.msg_init.NECRxCH",
- FT_BOOLEAN,
- 16,
- NULL,
- 0x8000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_ecrxch,
- {
- "ECRxCH",
- "sprt.payload.msg_init.ECRxCH",
- FT_BOOLEAN,
- 16,
- NULL,
- 0x4000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_xid_prof_exch,
- {
- "XID profile exchange",
- "sprt.payload.msg_init.XID_profile_exch",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x2000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_assym_data_types,
- {
- "Assymetrical data types",
- "sprt.payload.msg_init.assym_data_types",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x1000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_i_raw_bit,
- {
- "I_RAW-BIT",
- "sprt.payload.msg_init.opt_moip_types_i_raw_bit",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x0800,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_i_frame,
- {
- "I_FRAME",
- "sprt.payload.msg_init.opt_moip_types_i_frame",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x0400,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_i_char_stat,
- {
- "I_CHAR-STAT",
- "sprt.payload.msg_init.opt_moip_types_i_char_stat",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x0200,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn,
- {
- "I_CHAR-DYN",
- "sprt.payload.msg_init.opt_moip_types_i_char_dyn",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x0100,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_i_octet_cs,
- {
- "I_OCTET-CS",
- "sprt.payload.msg_init.opt_moip_types_i_octet_cs",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x0080,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_i_char_stat_cs,
- {
- "I_CHAR-STAT-CS",
- "sprt.payload.msg_init.opt_moip_types_i_char_stat_cs",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x0040,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn_cs,
- {
- "I_CHAR-DYN-CS",
- "sprt.payload.msg_init.opt_moip_types_i_char_dyn_cs",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_supported_not_supported),
- 0x0020,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_init_opt_moip_types_reserved,
- {
- "Reserved for ITU-T",
- "sprt.payload.msg_init.opt_moip_types_reserved",
- FT_UINT16,
- BASE_HEX,
- NULL,
- 0x001F,
- NULL, HFILL
- }
- },
- /* XID_XCHG message */
- {
- &hf_sprt_payload_msg_xidxchg_ecp,
- {
- "Error correcting protocol",
- "sprt.payload.msg_xidxchg.ecp",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_ecp_name),
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr1_v42bis,
- {
- "V.42 bis",
- "sprt.payload.msg_xidxchg.xidlr1_v42bis",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_supported_not_supported),
- 0x80,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr1_v44,
- {
- "V.44",
- "sprt.payload.msg_xidxchg.xidlr1_v44",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_supported_not_supported),
- 0x40,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr1_mnp5,
- {
- "MNP5",
- "sprt.payload.msg_xidxchg.xidlr1_mnp5",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_supported_not_supported),
- 0x20,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr1_reserved,
- {
- "Reserved for ITU-T",
- "sprt.payload.msg_xidxchg.xidlr1_reserved",
- FT_UINT8,
- BASE_HEX,
- NULL,
- 0x1F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr2_v42bis_compr_req,
- {
- "V.42bis data compression request",
- "sprt.payload.msg_xidxchg.xidlr2_v42bis_compr_req",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr3and4_v42bis_num_codewords,
- {
- "V.42bis number of codewords",
- "sprt.payload.msg_xidxchg.xidlr3and4_v42bis_num_codewords",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr5_v42bis_max_strlen,
- {
- "V.42bis maximum string length",
- "sprt.payload.msg_xidxchg.xidlr5_v42bis_max_strlen",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr6_v44_capability,
- {
- "V.44 capability",
- "sprt.payload.msg_xidxchg.xidlr6_v44_capability",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr7_v44_compr_req,
- {
- "V.44 data compression request",
- "sprt.payload.msg_xidxchg.xidlr7_v44_compr_req",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr8and9_v44_num_codewords_trans,
- {
- "V.44 number of codewords in transmit direction",
- "sprt.payload.msg_xidxchg.xidlr8and9_v44_num_codewords_trans",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr10and11_v44_num_codewords_recv,
- {
- "V.44 number of codewords in receive direction",
- "sprt.payload.msg_xidxchg.xidlr10and11_v44_num_codewords_recv",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr12_v44_max_strlen_trans,
- {
- "V.44 maximum string length in transmit direction",
- "sprt.payload.msg_xidxchg.xidlr12_v44_max_strlen_trans",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr13_v44_max_strlen_recv,
- {
- "V.44 maximum string length in receive direction",
- "sprt.payload.msg_xidxchg.xidlr13_v44_max_strlen_recv",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr14and15_v44_history_len_trans,
- {
- "V.44 length of history in transmit direction",
- "sprt.payload.msg_xidxchg.xidlr14and15_v44_history_len_trans",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_xidxchg_xidlr16and17_v44_history_len_recv,
- {
- "V.44 length of history in receive direction",
- "sprt.payload.msg_xidxchg.xidlr16and17_v44_history_len_recv",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- /* JM_INFO message */
- {
- &hf_sprt_payload_msg_jminfo_category_data,
- {
- "Category data",
- "sprt.payload.msg_jminfo.category_data",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0xFFFF,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_category_id,
- {
- "Category ID",
- "sprt.payload.msg_jminfo.category_id",
- FT_UINT16,
- BASE_HEX,
- VALS(sprt_jm_info_cat_id_name),
- 0xF000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_category_ext_info,
- {
- "Unrecognized category data",
- "sprt.payload.msg_jminfo.category_ext_info",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0FFF,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_unk_category_info,
- {
- "Category extension data",
- "sprt.payload.msg_jminfo.unk_category_info",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0FFF,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_category_leftover_bits,
- {
- "Leftover bits", /* "Category info leftover bits", */
- "sprt.payload.msg_jminfo.category_leftover_bits",
- FT_UINT16,
- BASE_HEX,
- NULL,
- 0x01FF,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_call_function,
- {
- "Call function",
- "sprt.payload.msg_jminfo.call_function",
- FT_UINT16,
- BASE_DEC,
- VALS(sprt_jminfo_tbc_call_funct_name),
- 0x0E00,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v34_duplex,
- {
- "V.34 duplex",
- "sprt.payload.msg_jminfo.mod_v34_duplex",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0800,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v34_half_duplex,
- {
- "V.34 half-duplex",
- "sprt.payload.msg_jminfo.mod_v34_half_duplex",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0400,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v32bis_v32,
- {
- "V.32bis/V.32",
- "sprt.payload.msg_jminfo.mod_v32bis_v32",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0200,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v22bis_v22,
- {
- "V.22bis/V.22",
- "sprt.payload.msg_jminfo.mod_v22bis_v22",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0100,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v17,
- {
- "V.17",
- "sprt.payload.msg_jminfo.mod_v17",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0080,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v29_half_duplex,
- {
- "V.29 half-duplex",
- "sprt.payload.msg_jminfo.mod_v29_half_duplex",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0040,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v27ter,
- {
- "V.27ter",
- "sprt.payload.msg_jminfo.mod_v27ter",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0020,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v26ter,
- {
- "V.26ter",
- "sprt.payload.msg_jminfo.mod_v26ter",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0010,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v26bis,
- {
- "V.26bis",
- "sprt.payload.msg_jminfo.mod_v16bis",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0008,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v23_duplex,
- {
- "V.23 duplex",
- "sprt.payload.msg_jminfo.mod_v23_duplex",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0004,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v23_half_duplex,
- {
- "V.23 half-duplex",
- "sprt.payload.msg_jminfo.mod_v23_half_duplex",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0002,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_mod_v21,
- {
- "V.21",
- "sprt.payload.msg_jminfo.mod_v21",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0001,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_protocols,
- {
- "Protocols",
- "sprt.payload.msg_jminfo.protocols",
- FT_UINT16,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_jminfo_tbc_protocol_name),
- 0x0E00,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_pstn_access_call_dce_cell,
- {
- "Call DCE is on a cellular connection",
- "sprt.payload.msg_jminfo.pstn_access_call_dce_cell",
- FT_BOOLEAN,
- 16,
- NULL,
- 0x0800,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_pstn_access_answ_dce_cell,
- {
- "Answer DCE is on a cellular connection",
- "sprt.payload.msg_jminfo.pstn_access_answ_dce_cell",
- FT_BOOLEAN,
- 16,
- NULL,
- 0x0400,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_pstn_access_dce_on_digital_net,
- {
- "DCE is on a digital network connection",
- "sprt.payload.msg_jminfo.pstn_access_dce_on_digital_net",
- FT_BOOLEAN,
- 16,
- NULL,
- 0x0200,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_analog,
- {
- "V.90 or V.92 analog modem availability",
- "sprt.payload.msg_jminfo.pcm_modem_avail_v90_v92_analog",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0800,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_digital,
- {
- "V.90 or V.92 digital modem availability",
- "sprt.payload.msg_jminfo.pcm_modem_avail_v90_v92_digital",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0400,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_jminfo_pcm_modem_avail_v91,
- {
- "V.91 modem availability",
- "sprt.payload.msg_jminfo.pcm_modem_avail_v91",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0200,
- NULL, HFILL
- }
- },
- /* START_JM message has no additional fields */
- /* CONNECT message */
- {
- &hf_sprt_payload_msg_connect_selmod,
- {
- "Selected modulation",
- "sprt.payload.msg_connect.selmod",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_selmod_name),
- 0xFC,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_compr_dir,
- {
- "Compression direction",
- "sprt.payload.msg_connect.compr_dir",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_comp_direction),
- 0x03,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_selected_compr,
- {
- "Selected compression",
- "sprt.payload.msg_connect.selected_compr",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_selected_compr_name),
- 0xF0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_selected_err_corr,
- {
- "Selected error correction",
- "sprt.payload.msg_connect.selected_err_corr",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_selected_err_corr_name),
- 0x0F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_tdsr,
- {
- "Transmit data signalling rate (bits/sec)",
- "sprt.payload.msg_connect.tdsr",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_rdsr,
- {
- "Receive data signalling rate (bits/sec)",
- "sprt.payload.msg_connect.rdsr",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_dlci_enabled,
- {
- "DLCI",
- "sprt.payload.msg_connect.dlci_enabled",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_enabled_disabled),
- 0x8000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_avail_data_types,
- {
- "Available data types",
- "sprt.payload.msg_connect.avail_data_types",
- FT_UINT16,
- BASE_HEX,
- NULL,
- 0x7FFF,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_adt_octet_no_format_no_dlci,
- {
- "Octet w/o formatting with no DLCI",
- "sprt.payload.msg_connect.adt_octet_no_format_no_dlci",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x4000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_adt_i_raw_bit,
- {
- "I_RAW-BIT",
- "sprt.payload.msg_connect.adt_i_raw_bit",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x2000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_adt_i_frame,
- {
- "I_FRAME",
- "sprt.payload.msg_connect.adt_i_frame",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x1000,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_adt_i_char_stat,
- {
- "I_CHAR-STAT",
- "sprt.payload.msg_connect.adt_i_char_stat",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0800,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_adt_i_char_dyn,
- {
- "I_CHAR-DYN",
- "sprt.payload.msg_connect.adt_i_char_dyn",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0400,
- NULL, HFILL
- }
- },
- { /* from V.150.1 amendment 2 (5-2006): */
- &hf_sprt_payload_msg_connect_adt_i_octet_cs,
- {
- "I_OCTET-CS",
- "sprt.payload.msg_connect.adt_i_octet_cs",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0200,
- NULL, HFILL
- }
- },
- { /* from V.150.1 amendment 2 (5-2006): */
- &hf_sprt_payload_msg_connect_adt_i_char_stat_cs,
- {
- "I_CHAR-STAT-CS",
- "sprt.payload.msg_connect.adt_i_char_stat_cs",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0100,
- NULL, HFILL
- }
- },
- { /* from V.150.1 amendment 2 (5-2006): */
- &hf_sprt_payload_msg_connect_adt_i_char_dyn_cs,
- {
- "I_CHAR-DYN-CS",
- "sprt.payload.msg_connect.adt_i_char_dyn_cs",
- FT_BOOLEAN,
- 16,
- TFS(&tfs_available_not_available),
- 0x0080,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_adt_reserved,
- {
- "Reserved for ITU-T",
- "sprt.payload.msg_connect.adt_reserved",
- FT_UINT16,
- BASE_HEX,
- NULL,
- 0x007F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_compr_trans_dict_sz,
- {
- "Compression transmit dictionary size",
- "sprt.payload.msg_connect.compr_trans_dict_sz",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_compr_recv_dict_sz,
- {
- "Compression receive dictionary size",
- "sprt.payload.msg_connect.compr_recv_dict_sz",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_compr_trans_str_len,
- {
- "Compression transmit string length",
- "sprt.payload.msg_connect.compr_trans_str_len",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_compr_recv_str_len,
- {
- "Compression receive string length",
- "sprt.payload.msg_connect.compr_recv_str_len",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_compr_trans_hist_sz,
- {
- "Compression transmit history size",
- "sprt.payload.msg_connect.compr_trans_hist_sz",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_connect_compr_recv_hist_sz,
- {
- "Compression receive history size",
- "sprt.payload.msg_connect.compr_recv_hist_sz",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- /* BREAK message */
- {
- &hf_sprt_payload_msg_break_source_proto,
- {
- "Break source protocol",
- "sprt.payload.msg_break.source_proto",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_break_src_proto_name),
- 0xF0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_break_type,
- {
- "Break type",
- "sprt.payload.msg_break.type",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_break_type_name),
- 0x0F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_break_length,
- {
- "Break length (x10 msec)",
- "sprt.payload.msg_break.length",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- /* BREAK_ACK message has no additional fields */
- /* MR_EVENT message */
- {
- &hf_sprt_payload_msg_mr_event_id,
- {
- "Modem relay event ID",
- "sprt.payload.msg_mr_event.id",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_mrevent_id_name),
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_reason_code,
- {
- "Reason code",
- "sprt.payload.msg_mr_event.reason_code",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_mrevent_reason_code_name),
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_selmod,
- {
- "Selected modulation",
- "sprt.payload.msg_mr_event.selmod",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_selmod_name),
- 0xFC,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_txsen,
- {
- "TxSEN",
- "sprt.payload.msg_mr_event.txsen",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_enabled_disabled),
- 0x02,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_rxsen,
- {
- "RxSEN",
- "sprt.payload.msg_mr_event.rxsen",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_enabled_disabled),
- 0x01,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_tdsr,
- {
- "Transmit data signalling rate (bits/sec)",
- "sprt.payload.msg_mr_event.tdsr",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_rdsr,
- {
- "Receive data signalling rate (bits/sec)",
- "sprt.payload.msg_mr_event.rdsr",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_txsr,
- {
- "Physical layer transmitter symbol rate (TxSR)",
- "sprt.payload.msg_mr_event.txsr",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_mrevent_phys_layer_symbol_rate),
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_mr_evt_rxsr,
- {
- "Physical layer receiver symbol rate (RxSR)",
- "sprt.payload.msg_mr_event.rxsr",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_mrevent_phys_layer_symbol_rate),
- 0x0,
- NULL, HFILL
- }
- },
- /* CLEARDOWN message */
- {
- &hf_sprt_payload_msg_cleardown_reason_code,
- {
- "Reason code",
- "sprt.payload.msg_cleardown.reason_code",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_cleardown_reason),
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_cleardown_vendor_tag,
- {
- "Vendor tag",
- "sprt.payload.msg_cleardown.vendor_tag",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_cleardown_vendor_info,
- {
- "Vendor info",
- "sprt.payload.msg_cleardown.vendor_info",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- /* PROF_XCHG message */
- {
- &hf_sprt_payload_msg_profxchg_v42_lapm,
- {
- "V.42/LAPM protocol support",
- "sprt.payload.msg_profxchg.v42_lapm",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_prof_xchg_support),
- 0xC0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_annex_av42,
- {
- "Annex A/V.42(1996) protocol support",
- "sprt.payload.msg_profxchg.annex_av42",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_prof_xchg_support),
- 0x30,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_v44_compr,
- {
- "V.44 compression support",
- "sprt.payload.msg_profxchg.v44_compr",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_prof_xchg_support),
- 0x0C,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_v42bis_compr,
- {
- "V.42bis compression support",
- "sprt.payload.msg_profxchg.v42bis_compr",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_prof_xchg_support),
- 0x03,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_mnp5_compr,
- {
- "MNP5 compression support",
- "sprt.payload.msg_profxchg.mnp5_compr",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_prof_xchg_support),
- 0xC0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_reserved,
- {
- "Reserved for ITU-T",
- "sprt.payload.msg_profxchg.reserved",
- FT_UINT8,
- BASE_HEX,
- NULL,
- 0x3F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr2_v42bis_compr_req,
- {
- "V.42bis data compression request",
- "sprt.payload.msg_profxchg.xidlr2_v42bis_compr_req",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr3and4_v42bis_num_codewords,
- {
- "V.42bis number of codewords",
- "sprt.payload.msg_profxchg.xidlr3and4_v42bis_num_codewords",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr5_v42bis_max_strlen,
- {
- "V.42bis maximum string length",
- "sprt.payload.msg_profxchg.xidlr5_v42bis_max_strlen",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr6_v44_capability,
- {
- "V.44 capability",
- "sprt.payload.msg_profxchg.xidlr6_v44_capability",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr7_v44_compr_req,
- {
- "V.44 data compression request",
- "sprt.payload.msg_profxchg.xidlr7_v44_compr_req",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr8and9_v44_num_codewords_trans,
- {
- "V.44 number of codewords in transmit direction",
- "sprt.payload.msg_profxchg.xidlr8and9_v44_num_codewords_trans",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr10and11_v44_num_codewords_recv,
- {
- "V.44 number of codewords in receive direction",
- "sprt.payload.msg_profxchg.xidlr10and11_v44_num_codewords_recv",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr12_v44_max_strlen_trans,
- {
- "V.44 maximum string length in transmit direction",
- "sprt.payload.msg_profxchg.xidlr12_v44_max_strlen_trans",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr13_v44_max_strlen_recv,
- {
- "V.44 maximum string length in receive direction",
- "sprt.payload.msg_profxchg.xidlr13_v44_max_strlen_recv",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr14and15_v44_history_len_trans,
- {
- "V.44 length of history in transmit direction",
- "sprt.payload.msg_profxchg.xidlr14and15_v44_history_len_trans",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_msg_profxchg_xidlr16and17_v44_history_len_recv,
- {
- "V.44 length of history in receive direction",
- "sprt.payload.msg_profxchg.xidlr16and17_v44_history_len_recv",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- /* User data messages... */
- /* I_OCTET message: need to use DLCI field (8 or 16 bits) if indicated by CONNECT message */
- {
- &hf_sprt_payload_i_octet_no_dlci,
- {
- "No DLCI field",
- "sprt.payload.i_octet_no_dlci",
- FT_NONE,
- BASE_NONE,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_i_octet_dlci_presence_unknown,
- {
- "Not known if DLCI field is present",
- "sprt.payload.i_octet_dlci_presence_unknown",
- FT_NONE,
- BASE_NONE,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_i_octet_dlci1,
- {
- "DLCI #1",
- "sprt.payload.i_octet_dlci1",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_payload_dlci1),
- 0xFC,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_i_octet_cr,
- {
- "Command/response bit",
- "sprt.payload.i_octet_cr",
- FT_BOOLEAN,
- 8,
- NULL,
- 0x02,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_i_octet_ea,
- {
- "Address field extension bit",
- "sprt.payload.i_octet_ea",
- FT_BOOLEAN,
- 8,
- TFS(&sprt_payload_ea_bit),
- 0x01,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_i_octet_dlci2,
- {
- "DLCI #2",
- "sprt.payload.i_octet_dlci2",
- FT_UINT8,
- BASE_DEC | BASE_RANGE_STRING,
- RVALS(sprt_payload_dlci2),
- 0xFE,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_i_octet_dlci_setup_by_connect_frame,
- {
- "DLCI setup by CONNECT message at frame",
- "sprt.payload.i_octet_dlci_setup_by_connect_frame",
- FT_FRAMENUM,
- BASE_NONE,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- /* fields for I_RAW_OCTET message (L; L,N) */
- {
- &hf_sprt_payload_rawoctet_n_field_present,
- {
- "N field",
- "sprt.payload.rawoctet_n_field_present",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_present_absent),
- 0x80,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawoctet_l,
- {
- "L: # of octets in segment minus one",
- "sprt.payload.rawoctet_l",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x7F,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawoctet_n,
- {
- "N: # of times octets appear in data minus 2",
- "sprt.payload.rawoctet_n",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0xFF,
- NULL, HFILL
- }
- },
- /* fields for I_RAW_BIT (L; L,P; L,P,N) */
- {
- &hf_sprt_payload_rawbit_included_fields_l,
- {
- "Include field L only",
- "sprt.payload.rawbit_included_fields_l",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0xC0, /* top two bits: 00 */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawbit_included_fields_lp,
- {
- "Include fields L, P",
- "sprt.payload.rawbit_field_format_lp",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0xC0, /* top two bits: 01 */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawbit_included_fields_lpn,
- {
- "Include fields L, P, N",
- "sprt.payload.rawbit_included_fields_lpn",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x80, /* top bit: 1 */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawbit_len_a,
- {
- "L: # of octets in segment",
- "sprt.payload.rawbit_len_a",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x3F, /* six bits */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawbit_len_b,
- {
- "L: # of octets in segment",
- "sprt.payload.rawbit_len_b",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x38, /* three bits */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawbit_len_c,
- {
- "L: # of octets in segment",
- "sprt.payload.rawbit_len_c",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x78, /* four bits */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawbit_p,
- {
- "P: # of low-order bits in last octet that are not in segment",
- "sprt.payload.rawbit_p",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0x7, /* three bits */
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_rawbit_n,
- {
- "N: # of times octets appear in data minus 2",
- "sprt.payload.rawbit_n",
- FT_UINT8,
- BASE_DEC,
- NULL,
- 0xFF, /* eight bits */
- NULL, HFILL
- }
- },
- /* fields in I_CHAR_STAT & I_CHAR_DYN messages */
- {
- &hf_sprt_payload_data_reserved_bit,
- {
- "Reserved bit",
- "sprt.payload.reserved_bit",
- FT_BOOLEAN,
- 8,
- TFS(&tfs_set_notset),
- 0x80,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_data_num_data_bits,
- {
- "D: Number of data bits",
- "sprt.payload.num_data_bits",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_payload_data_bits),
- 0x60,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_data_parity_type,
- {
- "P: Parity type",
- "sprt.payload.parity_type",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_payload_parity),
- 0x1C,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_num_stop_bits,
- {
- "S: Number stop bits",
- "sprt.payload.num_stop_bits",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_payload_stop_bits),
- 0x03,
- NULL, HFILL
- }
- },
- /* sequence field in I_OCTET_CS, I_CHAR_STAT_CS, & I_CHAR_DYN_CS messages */
- {
- &hf_sprt_payload_data_cs,
- {
- "Character sequence number",
- "sprt.payload.cs",
- FT_UINT16,
- BASE_DEC,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- /* fields for I_FRAME: */
- {
- &hf_sprt_payload_frame_reserved_bits,
- {
- "Reserved bits",
- "sprt.payload.frame_reserved_bits",
- FT_UINT8,
- BASE_HEX,
- NULL,
- 0xFC,
- NULL, HFILL
- }
- },
- {
- &hf_sprt_payload_frame_state,
- {
- "Frame state",
- "sprt.payload.frame_state",
- FT_UINT8,
- BASE_DEC,
- VALS(sprt_payload_frame_state),
- 0x03,
- NULL, HFILL
- }
- },
- /* just dump remaining payload data: */
- {
- &hf_sprt_payload_data,
- {
- "Payload data",
- "sprt.payload.data",
- FT_BYTES,
- BASE_NONE,
- NULL,
- 0x0,
- NULL, HFILL
- }
- },
- }; /* hf_register_info hf[] */
-
- /* setup protocol subtree array */
- static gint *ett[] = {
- &ett_sprt,
- &ett_sprt_setup,
- &ett_sprt_ack_fields,
- &ett_payload,
- &ett_init_msg_all_fields,
- &ett_jminfo_msg_cat_data,
- &ett_connect_msg_adt
- };
-
- /* register protocol name & description */
- proto_sprt = proto_register_protocol("Simple Packet Relay Transport", "SPRT", "sprt");
-
- /* required function calls to register the header fields and subtrees used */
- proto_register_field_array(proto_sprt, hf, array_length(hf));
- proto_register_subtree_array(ett, array_length(ett));
-
- /* register the dissector */
- new_register_dissector("sprt", dissect_sprt, proto_sprt);
-
- sprt_module = prefs_register_protocol(proto_sprt, NULL);
-
- /* preferences */
- prefs_register_bool_preference(sprt_module, "show_setup_info",
- "Show stream setup information",
- "Where available, show which protocol and frame caused "
- "this SPRT stream to be created",
- &global_sprt_show_setup_info);
- prefs_register_bool_preference(sprt_module, "show_dlci_info",
- "Show DLCI in I_OCTET messages",
- "Show the DLCI field in I_OCTET messages as well as the frame that "
- "enabled/disabled the DLCI",
- &global_sprt_show_dlci_info);
-
-}
-
-void
-proto_reg_handoff_sprt(void)
-{
- sprt_handle = find_dissector("sprt");
- dissector_add_handle("udp.port", sprt_handle);
- heur_dissector_add( "udp", dissect_sprt_heur, proto_sprt);
-}
+/* packet-sprt.h + * + * Routines for SPRT dissection + * SPRT = Simple Packet Relay Transport + * + * $Id$ + * + * Written by Jamison Adcock <jamison.adcock@cobham.com> + * for Sparta Inc., dba Cobham Analytic Solutions + * This code is largely based on the RTP parsing code + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +/* TODO: + * - work on conversations + * + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <glib.h> + +#include <epan/packet.h> +#include <epan/prefs.h> +#include <epan/conversation.h> +#include <epan/expert.h> + +#include "packet-sprt.h" + +/* Initialize the protocol & registered fields */ +static int proto_sprt = -1; + +static int hf_sprt_setup = -1; +static int hf_sprt_setup_frame = -1; +static int hf_sprt_setup_method = -1; + +static int hf_sprt_header_extension_bit = -1; +static int hf_sprt_subsession_id = -1; +static int hf_sprt_reserved_bit = -1; +static int hf_sprt_payload_type = -1; +static int hf_sprt_transport_channel_id = -1; +static int hf_sprt_sequence_number = -1; +static int hf_sprt_number_of_ack_fields = -1; +static int hf_sprt_base_sequence_number = -1; +static int hf_sprt_ack_field_items = -1; +static int hf_sprt_transport_channel_item = -1; +static int hf_sprt_sequence_item = -1; + +static int hf_sprt_payload = -1; +static int hf_sprt_payload_no_data = -1; +static int hf_sprt_payload_reserved_bit = -1; +static int hf_sprt_payload_message_id = -1; + +static int hf_sprt_payload_data = -1; /* stuff after msgid */ +/* INIT msg: */ +static int hf_sprt_payload_msg_init_all_fields = -1; +static int hf_sprt_payload_msg_init_necrxch = -1; +static int hf_sprt_payload_msg_init_ecrxch = -1; +static int hf_sprt_payload_msg_init_xid_prof_exch = -1; +static int hf_sprt_payload_msg_init_assym_data_types = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_i_raw_bit = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_i_frame = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_i_char_stat = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_i_octet_cs = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_i_char_stat_cs = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn_cs = -1; +static int hf_sprt_payload_msg_init_opt_moip_types_reserved = -1; +/* XID_XCHG message: */ +static int hf_sprt_payload_msg_xidxchg_ecp = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr1_v42bis = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr1_v44 = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr1_mnp5 = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr1_reserved = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr2_v42bis_compr_req = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr3and4_v42bis_num_codewords = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr5_v42bis_max_strlen = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr6_v44_capability = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr7_v44_compr_req = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr8and9_v44_num_codewords_trans = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr10and11_v44_num_codewords_recv = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr12_v44_max_strlen_trans = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr13_v44_max_strlen_recv = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr14and15_v44_history_len_trans = -1; +static int hf_sprt_payload_msg_xidxchg_xidlr16and17_v44_history_len_recv = -1; +/* V.8 JM_INFO msg: */ +static int hf_sprt_payload_msg_jminfo_category_data = -1; +static int hf_sprt_payload_msg_jminfo_category_id = -1; +static int hf_sprt_payload_msg_jminfo_category_ext_info = -1; +static int hf_sprt_payload_msg_jminfo_unk_category_info = -1; +static int hf_sprt_payload_msg_jminfo_category_leftover_bits = -1; +static int hf_sprt_payload_msg_jminfo_call_function = -1; +static int hf_sprt_payload_msg_jminfo_mod_v34_duplex = -1; +static int hf_sprt_payload_msg_jminfo_mod_v34_half_duplex = -1; +static int hf_sprt_payload_msg_jminfo_mod_v32bis_v32 = -1; +static int hf_sprt_payload_msg_jminfo_mod_v22bis_v22 = -1; +static int hf_sprt_payload_msg_jminfo_mod_v17 = -1; +static int hf_sprt_payload_msg_jminfo_mod_v29_half_duplex = -1; +static int hf_sprt_payload_msg_jminfo_mod_v27ter = -1; +static int hf_sprt_payload_msg_jminfo_mod_v26ter = -1; +static int hf_sprt_payload_msg_jminfo_mod_v26bis = -1; +static int hf_sprt_payload_msg_jminfo_mod_v23_duplex = -1; +static int hf_sprt_payload_msg_jminfo_mod_v23_half_duplex = -1; +static int hf_sprt_payload_msg_jminfo_mod_v21 = -1; +static int hf_sprt_payload_msg_jminfo_protocols = -1; +static int hf_sprt_payload_msg_jminfo_pstn_access_call_dce_cell = -1; +static int hf_sprt_payload_msg_jminfo_pstn_access_answ_dce_cell = -1; +static int hf_sprt_payload_msg_jminfo_pstn_access_dce_on_digital_net = -1; +static int hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_analog = -1; +static int hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_digital = -1; +static int hf_sprt_payload_msg_jminfo_pcm_modem_avail_v91 = -1; +/* CONNECT msg: */ +static int hf_sprt_payload_msg_connect_selmod = -1; +static int hf_sprt_payload_msg_connect_compr_dir = -1; +static int hf_sprt_payload_msg_connect_selected_compr = -1; +static int hf_sprt_payload_msg_connect_selected_err_corr = -1; +static int hf_sprt_payload_msg_connect_tdsr = -1; +static int hf_sprt_payload_msg_connect_rdsr = -1; +static int hf_sprt_payload_msg_connect_dlci_enabled = -1; +static int hf_sprt_payload_msg_connect_avail_data_types = -1; +static int hf_sprt_payload_msg_connect_adt_octet_no_format_no_dlci = -1; +static int hf_sprt_payload_msg_connect_adt_i_raw_bit = -1; +static int hf_sprt_payload_msg_connect_adt_i_frame = -1; +static int hf_sprt_payload_msg_connect_adt_i_char_stat = -1; +static int hf_sprt_payload_msg_connect_adt_i_char_dyn = -1; +static int hf_sprt_payload_msg_connect_adt_i_octet_cs = -1; +static int hf_sprt_payload_msg_connect_adt_i_char_stat_cs = -1; +static int hf_sprt_payload_msg_connect_adt_i_char_dyn_cs = -1; +static int hf_sprt_payload_msg_connect_adt_reserved = -1; +static int hf_sprt_payload_msg_connect_compr_trans_dict_sz = -1; +static int hf_sprt_payload_msg_connect_compr_recv_dict_sz = -1; +static int hf_sprt_payload_msg_connect_compr_trans_str_len = -1; +static int hf_sprt_payload_msg_connect_compr_recv_str_len = -1; +static int hf_sprt_payload_msg_connect_compr_trans_hist_sz = -1; +static int hf_sprt_payload_msg_connect_compr_recv_hist_sz = -1; +/* BREAK msg: */ +static int hf_sprt_payload_msg_break_source_proto = -1; +static int hf_sprt_payload_msg_break_type = -1; +static int hf_sprt_payload_msg_break_length = -1; +/* MR_EVENT msg: */ +static int hf_sprt_payload_msg_mr_event_id = -1; +static int hf_sprt_payload_msg_mr_evt_reason_code = -1; +static int hf_sprt_payload_msg_mr_evt_selmod = -1; +static int hf_sprt_payload_msg_mr_evt_txsen = -1; +static int hf_sprt_payload_msg_mr_evt_rxsen = -1; +static int hf_sprt_payload_msg_mr_evt_tdsr = -1; +static int hf_sprt_payload_msg_mr_evt_rdsr = -1; +static int hf_sprt_payload_msg_mr_evt_txsr = -1; +static int hf_sprt_payload_msg_mr_evt_rxsr = -1; +/* CLEARDOWN msg: */ +static int hf_sprt_payload_msg_cleardown_reason_code = -1; +static int hf_sprt_payload_msg_cleardown_vendor_tag = -1; +static int hf_sprt_payload_msg_cleardown_vendor_info = -1; +/* PROF_XCHG msg: */ +static int hf_sprt_payload_msg_profxchg_v42_lapm = -1; +static int hf_sprt_payload_msg_profxchg_annex_av42 = -1; +static int hf_sprt_payload_msg_profxchg_v44_compr = -1; +static int hf_sprt_payload_msg_profxchg_v42bis_compr = -1; +static int hf_sprt_payload_msg_profxchg_mnp5_compr = -1; +static int hf_sprt_payload_msg_profxchg_reserved = -1; +static int hf_sprt_payload_msg_profxchg_xidlr2_v42bis_compr_req = -1; +static int hf_sprt_payload_msg_profxchg_xidlr3and4_v42bis_num_codewords = -1; +static int hf_sprt_payload_msg_profxchg_xidlr5_v42bis_max_strlen = -1; +static int hf_sprt_payload_msg_profxchg_xidlr6_v44_capability = -1; +static int hf_sprt_payload_msg_profxchg_xidlr7_v44_compr_req = -1; +static int hf_sprt_payload_msg_profxchg_xidlr8and9_v44_num_codewords_trans = -1; +static int hf_sprt_payload_msg_profxchg_xidlr10and11_v44_num_codewords_recv = -1; +static int hf_sprt_payload_msg_profxchg_xidlr12_v44_max_strlen_trans = -1; +static int hf_sprt_payload_msg_profxchg_xidlr13_v44_max_strlen_recv = -1; +static int hf_sprt_payload_msg_profxchg_xidlr14and15_v44_history_len_trans = -1; +static int hf_sprt_payload_msg_profxchg_xidlr16and17_v44_history_len_recv = -1; +/* I_OCTET */ +static int hf_sprt_payload_i_octet_no_dlci = -1; +static int hf_sprt_payload_i_octet_dlci_presence_unknown = -1; +static int hf_sprt_payload_i_octet_dlci1 = -1; +static int hf_sprt_payload_i_octet_cr = -1; +static int hf_sprt_payload_i_octet_ea = -1; +static int hf_sprt_payload_i_octet_dlci2 = -1; +static int hf_sprt_payload_i_octet_dlci_setup_by_connect_frame = -1; + +/* I_OCTET_CS, I_CHAR_STAT_CS, I_CHAR_DYN_CS msgs: */ +static int hf_sprt_payload_data_cs = -1; +static int hf_sprt_payload_data_reserved_bit = -1; +static int hf_sprt_payload_data_num_data_bits = -1; +static int hf_sprt_payload_data_parity_type = -1; +static int hf_sprt_payload_num_stop_bits = -1; +static int hf_sprt_payload_frame_reserved_bits = -1; +static int hf_sprt_payload_frame_state = -1; +static int hf_sprt_payload_rawoctet_n_field_present = -1; +static int hf_sprt_payload_rawoctet_l = -1; +static int hf_sprt_payload_rawoctet_n = -1; +static int hf_sprt_payload_rawbit_included_fields_l = -1; +static int hf_sprt_payload_rawbit_included_fields_lp = -1; +static int hf_sprt_payload_rawbit_included_fields_lpn = -1; +static int hf_sprt_payload_rawbit_len_a = -1; +static int hf_sprt_payload_rawbit_len_b = -1; +static int hf_sprt_payload_rawbit_len_c = -1; +static int hf_sprt_payload_rawbit_p = -1; +static int hf_sprt_payload_rawbit_n = -1; + +/* Preferences */ +static gboolean global_sprt_show_setup_info = TRUE; /* show how this SPRT stream got started */ +static gboolean global_sprt_show_dlci_info = TRUE; /* show DLCI in I_OCTET messages, including setup frame (if we can) */ + + +/* dissector handle */ +static dissector_handle_t sprt_handle; + + +/* initialize the subtree pointers */ +static gint ett_sprt = -1; +static gint ett_sprt_setup = -1; +static gint ett_sprt_ack_fields = -1; +static gint ett_payload = -1; +static gint ett_init_msg_all_fields = -1; +static gint ett_jminfo_msg_cat_data = -1; +static gint ett_connect_msg_adt = -1; + +/* value strings & range strings */ +static const value_string sprt_transport_channel_characteristics[] = { + { 0, "Unreliable, unsequenced" }, + { 1, "Reliable, sequenced" }, + { 2, "Expedited, reliable, sequenced" }, + { 3, "Unreliable, sequenced" }, + { 0, NULL} +}; + +static const range_string sprt_modem_relay_msg_id_name[] = { + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_NULL), "NULL reserved for ITU-T" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_INIT), "INIT" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_XID_XCHG), "XID_XCHG" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_JM_INFO), "JM_INFO" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_START_JM), "START_JM" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_CONNECT), "CONNECT" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_BREAK), "BREAK" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_BREAK_ACK), "BREAK_ACK" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_MR_EVENT), "MR_EVENT" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_CLEARDOWN), "CLEARDOWN" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_PROF_XCHG), "PROF_XCHG" }, + { SPRT_MODEM_RELAY_MSG_ID_RESERVED1_START, SPRT_MODEM_RELAY_MSG_ID_RESERVED1_END, "Reserved for ITU-T" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_RAW_OCTET), "I_RAW-OCTET" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_RAW_BIT), "I_RAW-BIT" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_OCTET), "I_OCTET" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT), "I_CHAR-STAT" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN), "I_CHAR-DYN" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_FRAME), "I_FRAME" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_OCTET_CS), "I_OCTET-CS" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT_CS), "I_CHAR-STAT-CS" }, + { SPRT_VALUE_RANGE(SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN_CS), "I_CHAR-DYN-CS" }, + { SPRT_MODEM_RELAY_MSG_ID_RESERVED2_START, SPRT_MODEM_RELAY_MSG_ID_RESERVED2_END, "Reserved for ITU-T" }, + { SPRT_MODEM_RELAY_MSG_ID_VENDOR_START, SPRT_MODEM_RELAY_MSG_ID_VENDOR_END, "Vendor-specific message" }, + { 0, 0, NULL } +}; + +static const range_string sprt_ecp_name[] = { + { SPRT_VALUE_RANGE(SPRT_ECP_NO_LINK_LAYER_PROTO), "No link layer protocol" }, + { SPRT_VALUE_RANGE(SPRT_ECP_V42_LAPM), "V.42/LAPM" }, + { SPRT_VALUE_RANGE(SPRT_ECP_ANNEX_AV42_1996), "Annex A/V.42(1996)" }, + { SPRT_ECP_RESERVED_START, SPRT_ECP_RESERVED_END, "Reserved for ITU-T" }, + { 0, 0, NULL } +}; + +static const value_string sprt_jm_info_cat_id_name[] = { + { SPRT_JM_INFO_CAT_ID_CALL_FUNCT, "Call function" }, + { SPRT_JM_INFO_CAT_ID_MOD_MODES, "Modulation modes" }, + { SPRT_JM_INFO_CAT_ID_PROTOCOLS, "Protocols" }, + { SPRT_JM_INFO_CAT_ID_PSTN_ACCESS, "PSTN access" }, + { SPRT_JM_INFO_CAT_ID_PCM_MODEM_AVAIL, "PCM modem availability" }, + { SPRT_JM_INFO_CAT_ID_CATEGORY_EXTENSION, "Extension of current category" }, + { 0, NULL } +}; + +static const value_string sprt_jminfo_tbc_call_funct_name[] = { + { SPRT_JMINFO_TBC_CALL_FUNCT_PSTN_MULTIMEDIA_TERM, "PSTN Multimedia terminal (ITU-T Rec. H.324)" }, + { SPRT_JMINFO_TBC_CALL_FUNCT_TEXTPHONE_ITU_T_REC_V18, "Textphone (ITU-T Rec. V.18)" }, + { SPRT_JMINFO_TBC_CALL_FUNCT_VIDEOTEXT_ITU_T_REC_T101, "Videotext (ITU-T Rec. T.101)" }, + { SPRT_JMINFO_TBC_CALL_FUNCT_TRANS_FAX_ITU_T_REC_T30, "Transmit facsimilie from call terminal (ITU-T Rec. T.30)" }, + { SPRT_JMINFO_TBC_CALL_FUNCT_RECV_FAX_ITU_T_REC_T30, "Receive facsimilie at call terminal (ITU-T Rec. T.30)" }, + { SPRT_JMINFO_TBC_CALL_FUNCT_DATA_V_SERIES_MODEM_REC, "Data (V-series modem Recommendations)" }, + { 0, NULL } +}; + +static const range_string sprt_jminfo_tbc_protocol_name[] = { + { SPRT_VALUE_RANGE(SPRT_JMINFO_TBC_PROTOCOL_LAPM_ITU_T_REC_V42), "LAPM protocol according to ITU-T Rec. V.42" }, + { 0, 0, NULL } +}; + +static const range_string sprt_selmod_name[] = { + { SPRT_VALUE_RANGE(SPRT_SELMOD_NULL), "NULL" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V92), "V.92" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V91), "V.91" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V90), "V.90" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V34), "V.34" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V32_BIS), "V.32bis" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V32), "V.32" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V22_BIS), "V.22bis" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V22), "V.22" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V17), "V.17" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V29), "V.29" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V27_TER), "V.27ter" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V26_TER), "V.26ter" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V26_BIS), "V.26bis" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V23), "V.23" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_V21), "V.21" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_BELL_212), "Bell 212" }, + { SPRT_VALUE_RANGE(SPRT_SELMOD_BELL_103), "Bell 103" }, + { SPRT_SELMOD_VENDOR_START, SPRT_SELMOD_VENDOR_END, "Vendor-specific modulation" }, + { SPRT_SELMOD_RESERVED_START, SPRT_SELMOD_RESERVED_END, "Reserved for ITU-T" }, + { 0, 0, NULL } +}; + +static const value_string sprt_comp_direction[] = { + { SPRT_COMPR_DIR_NO_COMPRESSION, "None" }, + { SPRT_COMPR_DIR_TRANSMIT, "Transmit" }, + { SPRT_COMPR_DIR_RECEIVE, "Receive" }, + { SPRT_COMPR_DIR_BIDIRECTIONAL, "Bidirectional" }, + { 0, NULL } +}; + +static const range_string sprt_selected_compr_name[] = { + { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_NONE), "None" }, + { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_V42_BIS), "V.42bis" }, + { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_V44), "V.44" }, + { SPRT_VALUE_RANGE(SPRT_SELECTED_COMPR_MNP5), "MNP5" }, + { SPRT_SELECTED_COMPR_RESERVED_START, SPRT_SELECTED_COMPR_RESERVED_END, "Reserved by ITU-T" }, + { 0, 0, NULL } +}; + +static const range_string sprt_selected_err_corr_name[] = { + { SPRT_VALUE_RANGE(SPRT_SELECTED_ERR_CORR_V14_OR_NONE), "V.14 or no error correction protocol" }, + { SPRT_VALUE_RANGE(SPRT_SELECTED_ERR_CORR_V42_LAPM), "V.42/LAPM" }, + { SPRT_VALUE_RANGE(SPRT_SELECTED_ERR_CORR_ANNEX_AV42), "Annex A/V.42" }, + { SPRT_SELECTED_ERR_CORR_RESERVED_START, SPRT_SELECTED_ERR_CORR_RESERVED_END, "Reserved for ITU-T" }, + { 0, 0, NULL } +}; + +static const range_string sprt_break_src_proto_name[] = { + { SPRT_VALUE_RANGE(SPRT_BREAK_SRC_PROTO_V42_LAPM), "V.42/LAPM" }, + { SPRT_VALUE_RANGE(SPRT_BREAK_SRC_PROTO_ANNEX_AV42_1996), "Annex A/V.42(1996)" }, + { SPRT_VALUE_RANGE(SPRT_BREAK_SRC_PROTO_V14), "V.14" }, + { SPRT_BREAK_SRC_PROTO_RESERVED_START, SPRT_BREAK_SRC_PROTO_RESERVED_END, "Reserved for ITU-T" }, + { 0, 0, NULL } +}; + +static const range_string sprt_break_type_name[] = { + { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_NOT_APPLICABLE), "Not applicable" }, + { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_DESTRUCTIVE_AND_EXPEDITED), "Destructive and expedited" }, + { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_NONDESTRUCTIVE_AND_EXPEDITED), "Non-destructive and expedited" }, + { SPRT_VALUE_RANGE(SPRT_BREAK_TYPE_NONDESTRUCTIVE_AND_NONEXPEDITED), "Non-destructive and non-expedited" }, + { SPRT_BREAK_TYPE_RESERVED_START, SPRT_BREAK_TYPE_RESERVED_END, "Reserved for ITU-T" }, + { 0, 0, NULL } +}; + +static const range_string sprt_mrevent_id_name[] = { + { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_NULL), "NULL" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_RATE_RENEGOTIATION), "Rate renegotiation" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_RETRAIN), "Retrain" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_EVENT_ID_PHYSUP), "Physical layer ready" }, /* reason code should be 0 */ + { SPRT_MREVT_EVENT_ID_RESERVED_START, SPRT_MREVT_EVENT_ID_RESERVED_END, "Reserved for ITU-T" }, + { 0, 0, NULL } +}; + +static const range_string sprt_mrevent_reason_code_name[] = { + { SPRT_VALUE_RANGE(SPRT_MREVT_REASON_CODE_NULL), "Null/not applicable" }, /* for eventid = PHYSUP */ + { SPRT_VALUE_RANGE(SPRT_MREVT_REASON_CODE_INIT), "Initiation" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_REASON_CODE_RESPONDING), "Responding" }, + { SPRT_MREVT_REASON_CODE_RESERVED_START, SPRT_MREVT_REASON_CODE_RESERVED_END, "Reserved for ITU-T" }, + { 0, 0, NULL } +}; + +static const range_string sprt_mrevent_phys_layer_symbol_rate[] = { + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_NULL), "Null/not applicable" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_600), "600" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_1200), "1200" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_1600), "1600" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_2400), "2400" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_2743), "2743" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_3000), "3000" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_3200), "3200" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_3429), "3249" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_8000), "8000" }, + { SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_RESERVED_START, SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_RESERVED_END, "Reserved for ITU-T" }, + { SPRT_VALUE_RANGE(SPRT_MREVT_PHYS_LAYER_SYMBOL_RATE_UNSPECIFIED), "Unspecified" }, + { 0, 0, NULL } +}; + +static const value_string sprt_cleardown_reason[] = { + { SPRT_CLEARDOWN_RIC_UNKNOWN, "Unknown/unspecified" }, + { SPRT_CLEARDOWN_RIC_PHYSICAL_LAYER_RELEASE, "Physical layer release" }, + { SPRT_CLEARDOWN_RIC_LINK_LAYER_DISCONNECT, "Link layer disconnect" }, + { SPRT_CLEARDOWN_RIC_DATA_COMPRESSION_DISCONNECT, "Data compression disconnect" }, + { SPRT_CLEARDOWN_RIC_ABORT, "Abort" }, + { SPRT_CLEARDOWN_RIC_ON_HOOK, "On hook" }, + { SPRT_CLEARDOWN_RIC_NETWORK_LAYER_TERMINATION, "Network layer termination" }, + { SPRT_CLEARDOWN_RIC_ADMINISTRATIVE, "Administrative" }, + { 0, NULL } +}; + +static const value_string sprt_prof_xchg_support[] = { + { SPRT_PROF_XCHG_SUPPORT_NO, "No" }, + { SPRT_PROF_XCHG_SUPPORT_YES, "Yes" }, + { SPRT_PROF_XCHG_SUPPORT_UNKNOWN, "Unknown" }, + { 0, NULL } +}; + +static const range_string sprt_payload_dlci1[] = { + { SPRT_VALUE_RANGE(SPRT_PAYLOAD_DLCI1_DTE2DTE), "DTE-to-DTE (V.24 interfaces) data" }, + { SPRT_PAYLOAD_DLCI1_RESERVED_START, SPRT_PAYLOAD_DLCI1_RESERVED_END, "Reserved for for ITU-T" }, + { SPRT_PAYLOAD_DLCI1_NOT_RESERVED_START, SPRT_PAYLOAD_DLCI1_NOT_RESERVED_END, "Not reserved for for ITU-T" }, + { SPRT_VALUE_RANGE(SPRT_PAYLOAD_DLCI1_CTRLFN2CTRLFN), "Control-function to control-function information" }, + { 0, 0, NULL } +}; + +static const true_false_string sprt_payload_ea_bit[] = { + { "Last otcet of address feld", "Another octet of address field follows" } +}; + +static const range_string sprt_payload_dlci2[] = { + { SPRT_PAYLOAD_DLCI2_START, SPRT_PAYLOAD_DLCI2_END, "Reserved by ITU-T for further study" }, + { 0, 0, NULL } +}; + +static const value_string sprt_payload_data_bits[] = { + { SPRT_PAYLOAD_D_0, "5 bits" }, + { SPRT_PAYLOAD_D_1, "6 bits" }, + { SPRT_PAYLOAD_D_2, "7 bits" }, + { SPRT_PAYLOAD_D_3, "8 bits" }, + { 0, NULL } +}; + +static const value_string sprt_payload_parity[] = { + { SPRT_PAYLOAD_P_0, "Unknown" }, + { SPRT_PAYLOAD_P_1, "None" }, + { SPRT_PAYLOAD_P_2, "Even parity" }, + { SPRT_PAYLOAD_P_3, "Odd parity" }, + { SPRT_PAYLOAD_P_4, "Space parity" }, + { SPRT_PAYLOAD_P_5, "Mark parity" }, + { SPRT_PAYLOAD_P_6, "Reserved" }, + { SPRT_PAYLOAD_P_7, "Reserved" }, + { 0, NULL } +}; + +static const value_string sprt_payload_stop_bits[] = { + { SPRT_PAYLOAD_S_0, "1 stop bit" }, + { SPRT_PAYLOAD_S_1, "2 stop bits" }, + { SPRT_PAYLOAD_S_2, "Reserved" }, + { SPRT_PAYLOAD_S_3, "Reserved" }, + { 0, NULL } +}; + +static const value_string sprt_payload_frame_state[] = { + { SPRT_PAYLOAD_FR_0, "Data frame without termination" }, + { SPRT_PAYLOAD_FR_1, "Data frame with termination" }, + { SPRT_PAYLOAD_FR_2, "Data frame with abort termination" }, + { SPRT_PAYLOAD_FR_3, "Undefined" }, + { 0, NULL } +}; + + + +/* look for a conversation & return the associated data */ +static struct _sprt_conversation_info* find_sprt_conversation_data(packet_info *pinfo) +{ + conversation_t *p_conv = NULL; + struct _sprt_conversation_info *p_conv_data = NULL; + /* Use existing packet info if available */ + p_conv = find_conversation(pinfo->fd->num, + &pinfo->src, + &pinfo->dst, + pinfo->ptype, + pinfo->srcport, + pinfo->destport, + NO_ADDR_B|NO_PORT_B); + if(p_conv) + { + p_conv_data = (struct _sprt_conversation_info*)conversation_get_proto_data(p_conv, proto_sprt); + } + return p_conv_data; +} + + + +/* set up SPRT conversation */ +void sprt_add_address(packet_info *pinfo, + address *addr, int port, + int other_port, + const gchar *setup_method, + guint32 setup_frame_number) +{ + address null_addr; + conversation_t* p_conv; + struct _sprt_conversation_info *p_conv_data = NULL; + + /* + * If this isn't the first time this packet has been processed, + * we've already done this work, so we don't need to do it + * again. + */ + if (pinfo->fd->flags.visited) + { + return; + } + + SET_ADDRESS(&null_addr, AT_NONE, 0, NULL); + + /* + * Check if the ip address and port combination is not + * already registered as a conversation. + */ + p_conv = find_conversation(setup_frame_number, addr, &null_addr, PT_UDP, port, other_port, + NO_ADDR_B | (!other_port ? NO_PORT_B : 0)); + + /* + * If not, create a new conversation. + */ + if (!p_conv || p_conv->setup_frame != setup_frame_number) { + p_conv = conversation_new(setup_frame_number, addr, &null_addr, PT_UDP, + (guint32)port, (guint32)other_port, + NO_ADDR2 | (!other_port ? NO_PORT2 : 0)); + } + + /* Set dissector */ + conversation_set_dissector(p_conv, sprt_handle); + + /* + * Check if the conversation has data associated with it. + */ + p_conv_data = conversation_get_proto_data(p_conv, proto_sprt); + + /* + * If not, add a new data item. + */ + if (!p_conv_data) { + /* Create conversation data */ + p_conv_data = se_alloc(sizeof(struct _sprt_conversation_info)); + p_conv_data->stream_started = FALSE; + p_conv_data->seqnum[0] = 0; + p_conv_data->seqnum[1] = 0; + p_conv_data->seqnum[2] = 0; + p_conv_data->seqnum[3] = 0; + p_conv_data->i_octet_dlci_status = DLCI_UNKNOWN; + p_conv_data->connect_frame_number = 0; + conversation_add_proto_data(p_conv, proto_sprt, p_conv_data); + } + + /* Update the conversation data. */ + g_strlcpy(p_conv_data->method, setup_method, SPRT_CONV_MAX_SETUP_METHOD_SIZE); + p_conv_data->frame_number = setup_frame_number; +} + + + +/* Display setup info */ +static void show_setup_info(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + struct _sprt_conversation_info *p_conv_data; + proto_tree *sprt_setup_tree; + proto_item *ti; + + /* look up the conversation & get the data */ + p_conv_data = find_sprt_conversation_data(pinfo); + + if(!p_conv_data) + { + proto_tree_add_string_format(tree, hf_sprt_setup, tvb, 0, 0, "", "No setup info found"); + return; + } + + /* Create setup info subtree with summary info. */ + ti = proto_tree_add_string_format(tree, hf_sprt_setup, tvb, 0, 0, + "", + "Stream setup by %s (frame %u)", + p_conv_data->method, + p_conv_data->frame_number); + PROTO_ITEM_SET_GENERATED(ti); + sprt_setup_tree = proto_item_add_subtree(ti, ett_sprt_setup); + if (sprt_setup_tree) + { + /* Add details into subtree */ + proto_item* item = proto_tree_add_uint(sprt_setup_tree, hf_sprt_setup_frame, + tvb, 0, 0, p_conv_data->frame_number); + PROTO_ITEM_SET_GENERATED(item); + item = proto_tree_add_string(sprt_setup_tree, hf_sprt_setup_method, + tvb, 0, 0, p_conv_data->method); + PROTO_ITEM_SET_GENERATED(item); + } +} + + + +/* heuristic dissector */ +static gboolean +dissect_sprt_heur(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree _U_) +{ + guint8 octet, extension_bit, reserved_bit, payload_type; + guint16 word, tc, seqnum; + unsigned int offset = 0; + + /* This is a heuristic dissector, which means we get all the UDP + * traffic not sent to a known dissector and not claimed by + * a heuristic dissector called before us! + */ + + if(tvb_length(tvb) < 6) + return FALSE; /* packet is waay to short */ + + /* Get the fields in the first two octets */ + extension_bit = tvb_get_guint8(tvb, offset) & 0x7F; + if(extension_bit != 0) /* must be 0 */ + return FALSE; + + octet = tvb_get_guint8(tvb, offset + 1); + reserved_bit = octet & 80; + payload_type = octet & 0x7F; + if(reserved_bit != 0) /* must be 0 */ + return FALSE; + if(payload_type < 96 || payload_type > 128) /* value within RTP dynamic payload type range */ + return FALSE; + + word = tvb_get_ntohs(tvb, offset + 2); + tc = word >> 14; + seqnum = word & 0x3F; + if((tc == 0 || tc == 3) && (seqnum != 0)) /* seqnum only applies if tc is 1 or 2 */ + return FALSE; + + return TRUE; +} + + +/* code to actually dissect the packet payload data */ +static int +dissect_sprt_data(tvbuff_t *tvb, + packet_info *pinfo, + struct _sprt_conversation_info *p_conv_data, + proto_tree *sprt_tree, + unsigned int offset, + guint payload_length) +{ + proto_item *ti; + proto_tree *sprt_payload_tree, *field_subtree; + guint8 octet, payload_msgid, category_id; + guint8 selcompr, mr_event_id; + guint16 word, category_count; + + if(payload_length > 0) + { + ti = proto_tree_add_uint(sprt_tree, hf_sprt_payload, tvb, offset, 1, payload_length); + proto_item_set_len(ti, payload_length); + + sprt_payload_tree = proto_item_add_subtree(ti, ett_payload); + + payload_msgid = tvb_get_guint8(tvb, offset) & 0x7F; + + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_message_id, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + + /* what kind of message is this? */ + col_append_fstr(pinfo->cinfo, COL_INFO, ", %s(%d)", rval_to_str(payload_msgid, sprt_modem_relay_msg_id_name, "Unknown"), payload_msgid); + + /* now parse payload stuff after ext. bit & msgid */ + switch(payload_msgid) + { + case SPRT_MODEM_RELAY_MSG_ID_INIT: + /* make subtree */ + ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_init_all_fields, tvb, offset, 2, ENC_BIG_ENDIAN); + field_subtree = proto_item_add_subtree(ti, ett_init_msg_all_fields); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_necrxch, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_ecrxch, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_xid_prof_exch, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_assym_data_types, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_raw_bit, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_frame, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_stat, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn, tvb, offset, 2, ENC_BIG_ENDIAN); + /* from V.150.1 amendment 2 (5-2006): */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_octet_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_stat_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_init_opt_moip_types_reserved, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + break; + case SPRT_MODEM_RELAY_MSG_ID_XID_XCHG: + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_ecp, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_v42bis, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_v44, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_mnp5, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr1_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr2_v42bis_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr3and4_v42bis_num_codewords, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr5_v42bis_max_strlen, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr6_v44_capability, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr7_v44_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr8and9_v44_num_codewords_trans, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr10and11_v44_num_codewords_recv, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr12_v44_max_strlen_trans, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr13_v44_max_strlen_recv, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr14and15_v44_history_len_trans, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_xidxchg_xidlr16and17_v44_history_len_recv, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + break; + case SPRT_MODEM_RELAY_MSG_ID_JM_INFO: + category_count = 1; + do /* there may be multiple categories */ + { + word = tvb_get_ntohs(tvb, offset); + category_id = (word >> 12); + + ti = proto_tree_add_uint_format_value(sprt_payload_tree, hf_sprt_payload_msg_jminfo_category_data, tvb, offset, 2, word, + "Item #%d: %s (0x%04x)", category_count, val_to_str(category_id, sprt_jm_info_cat_id_name, "Unknown"), category_id); + category_count++; + field_subtree = proto_item_add_subtree(ti, ett_jminfo_msg_cat_data); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_id, tvb, offset, 2, ENC_BIG_ENDIAN); + + switch(category_id) + { + case SPRT_JM_INFO_CAT_ID_CALL_FUNCT: /* 0x8 */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_call_function, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN); + break; + case SPRT_JM_INFO_CAT_ID_MOD_MODES: /* 0xA */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v34_duplex, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v34_half_duplex, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v32bis_v32, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v22bis_v22, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v17, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v29_half_duplex, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v27ter, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v26ter, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v26bis, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v23_duplex, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v23_half_duplex, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_mod_v21, tvb, offset, 2, ENC_BIG_ENDIAN); + break; + case SPRT_JM_INFO_CAT_ID_PROTOCOLS: /* 0x5 */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_protocols, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN); + break; + case SPRT_JM_INFO_CAT_ID_PSTN_ACCESS: /* 0xB */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pstn_access_call_dce_cell, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pstn_access_answ_dce_cell, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pstn_access_dce_on_digital_net, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN); + break; + case SPRT_JM_INFO_CAT_ID_PCM_MODEM_AVAIL: /* 0xE */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_analog, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_digital, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_pcm_modem_avail_v91, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_leftover_bits, tvb, offset, 2, ENC_BIG_ENDIAN); + break; + case SPRT_JM_INFO_CAT_ID_CATEGORY_EXTENSION: /* 0x0 */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_category_ext_info, tvb, offset, 2, ENC_BIG_ENDIAN); + break; + default: /* unknown category ID */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_jminfo_unk_category_info, tvb, offset, 2, ENC_BIG_ENDIAN); + break; + } + offset += 2; + } while(tvb_length_remaining(tvb, offset) >= 2); + break; + case SPRT_MODEM_RELAY_MSG_ID_START_JM: + /* No additional content */ + break; + case SPRT_MODEM_RELAY_MSG_ID_CONNECT: /***/ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_selmod, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_dir, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + selcompr = (tvb_get_guint8(tvb, offset) & 0xF0) >> 4; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_selected_compr, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_selected_err_corr, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_tdsr, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_rdsr, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + word = tvb_get_ntohs(tvb, offset); + /* is DLCI enabled (used w/I_OCTET messages)? */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_dlci_enabled, tvb, offset, 2, ENC_BIG_ENDIAN); + /* have we previously seen a CONNECT msg in this conversation (i.e., do we know if DLCI is used w/I_OCTET?) */ + if(p_conv_data->connect_frame_number == 0) + { + p_conv_data->connect_frame_number = pinfo->fd->num; + if(word & 0x8000) + { + p_conv_data->i_octet_dlci_status = DLCI_PRESENT; + } else { + p_conv_data->i_octet_dlci_status = DLCI_ABSENT; + } + } + + /* do subtree for available data types */ + ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_avail_data_types, tvb, offset, 2, ENC_BIG_ENDIAN); + field_subtree = proto_item_add_subtree(ti, ett_connect_msg_adt); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_octet_no_format_no_dlci, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_raw_bit, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_frame, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_stat, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_dyn, tvb, offset, 2, ENC_BIG_ENDIAN); + /* from V.150.1 amendment 2 (5-2006): */ + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_octet_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_stat_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_i_char_dyn_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(field_subtree, hf_sprt_payload_msg_connect_adt_reserved, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + if(selcompr != SPRT_SELECTED_COMPR_NONE && + selcompr != SPRT_SELECTED_COMPR_MNP5) + { + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_trans_dict_sz, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_recv_dict_sz, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_trans_str_len, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_recv_str_len, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + } + if(selcompr != SPRT_SELECTED_COMPR_NONE && + selcompr != SPRT_SELECTED_COMPR_MNP5 && + selcompr != SPRT_SELECTED_COMPR_V42_BIS) + { + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_trans_hist_sz, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_connect_compr_recv_hist_sz, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + } + break; + case SPRT_MODEM_RELAY_MSG_ID_BREAK: /* no additional info */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_break_source_proto, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_break_type, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_break_length, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + break; + case SPRT_MODEM_RELAY_MSG_ID_BREAK_ACK: + /* No additional content */ + break; + case SPRT_MODEM_RELAY_MSG_ID_MR_EVENT: + mr_event_id = tvb_get_guint8(tvb, offset); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_event_id, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_reason_code, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + if(mr_event_id == SPRT_MREVT_EVENT_ID_PHYSUP) + { + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_selmod, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_txsen, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_rxsen, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_tdsr, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_rdsr, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + /* The next two fields are "optional" + * they should only appear w/PHYSUP (MR_EVENT id = 3) messages, when TxSR and RxSR are true + */ + if(tvb_reported_length_remaining(tvb, offset) >= 2) + { + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_txsr, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_mr_evt_rxsr, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + } + } + break; + case SPRT_MODEM_RELAY_MSG_ID_CLEARDOWN: + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_cleardown_reason_code, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_cleardown_vendor_tag, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_cleardown_vendor_info, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + break; + case SPRT_MODEM_RELAY_MSG_ID_PROF_XCHG: + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_v42_lapm, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_annex_av42, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_v44_compr, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_v42bis_compr, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_mnp5_compr, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr2_v42bis_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr3and4_v42bis_num_codewords, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr5_v42bis_max_strlen, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr6_v44_capability, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr7_v44_compr_req, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr8and9_v44_num_codewords_trans, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr10and11_v44_num_codewords_recv, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr12_v44_max_strlen_trans, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr13_v44_max_strlen_recv, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr14and15_v44_history_len_trans, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_msg_profxchg_xidlr16and17_v44_history_len_recv, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + break; + case SPRT_MODEM_RELAY_MSG_ID_I_RAW_OCTET: /* data */ + octet = tvb_get_guint8(tvb, offset); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawoctet_n_field_present, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawoctet_l, tvb, offset, 1, ENC_BIG_ENDIAN); + if(octet & 0x80) /* is N field present? */ + { + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawoctet_n, tvb, offset, 1, ENC_BIG_ENDIAN); + } + offset++; + payload_length--; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_NA); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_RAW_BIT: /* data */ + /* + * L, P, N fields need to be parsed + */ + switch((tvb_get_guint8(tvb, offset) & 0xC0) >> 6) + { + case 0x0: /* 00: get L (6 bits) */ + /* display leading "00" bits, followed by L */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_included_fields_l, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_len_a, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + break; + case 0x1: /* 01: get L (3 bits) & P (3 bits) */ + /* display leading "01" bits, followed by L,P */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_included_fields_lp, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_len_b, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_p, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + break; + default: /* 10, 11: get L (4 bits), P (3 bits), N (8 bits) */ + /* display leading "1" bit, followed by L,P,N */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_included_fields_lpn, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_len_c, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_p, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_rawbit_n, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + break; + } + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_OCTET: /* data */ + if(global_sprt_show_dlci_info) + { + /* DLCI field may be 0, 1, or 2 bytes, depending on CONNECT message (see "DLCI enabled")... + * or UNKNOWN if we don't see the CONNECT message + */ + switch(p_conv_data->i_octet_dlci_status) + { + case DLCI_PRESENT: + octet = tvb_get_guint8(tvb, offset); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_dlci1, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_cr, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_ea, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + /* check address extension... if ea bit == 0, then DLCI has another octet (see ITU-T V42 spec for more info) */ + if(!(octet & 0x01)) + { + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_dlci2, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_ea, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + } + ti = proto_tree_add_uint(sprt_payload_tree, hf_sprt_payload_i_octet_dlci_setup_by_connect_frame, tvb, 0, 0, p_conv_data->connect_frame_number); + PROTO_ITEM_SET_GENERATED(ti); + break; + case DLCI_ABSENT: + ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_no_dlci, tvb, 0, 0, ENC_NA); + PROTO_ITEM_SET_GENERATED(ti); + ti = proto_tree_add_uint(sprt_payload_tree, hf_sprt_payload_i_octet_dlci_setup_by_connect_frame, tvb, 0, 0, p_conv_data->connect_frame_number); + PROTO_ITEM_SET_GENERATED(ti); + break; + case DLCI_UNKNOWN: /* e.g., we didn't see the CONNECT msg so we don't know if there is a DLCI */ + default: + ti = proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_i_octet_dlci_presence_unknown, tvb, 0, 0, ENC_NA); + PROTO_ITEM_SET_GENERATED(ti); + break; + } + } + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT: /* data */ + /* r: 1-bit reserved */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN); + /* D: 2-bit field indicating # of data bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + /* P: 3-bit field for parity type */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN); + /* S: 2-bit field indicating # of stop bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + /* octets */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN: /* data */ + /* r: 1-bit reserved */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN); + /* D: 2-bit field indicating # of data bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + /* P: 3-bit field for parity type */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN); + /* S: 2-bit field indicating # of stop bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + /* octets */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_FRAME: /* data */ + /* R: 6 reserved bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_frame_reserved_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + /* Fr: data frame state */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_frame_state, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + /* octets */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_OCTET_CS: /* data */ + /* CS: 2-byte character sequence number */ + /* TODO - does this msg type ever have a DLCI? */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + payload_length -= 2; + /* octets */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_STAT_CS: /* data */ + /* r: 1-bit reserved */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN); + /* D: 2-bit field indicating # of data bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + /* P: 3-bit field for parity type */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN); + /* S: 2-bit field indicating # of stop bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + /* CS: 2-byte character sequence number */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + payload_length -= 2; + /* octets */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + case SPRT_MODEM_RELAY_MSG_ID_I_CHAR_DYN_CS: /* data */ + /* r: 1-bit reserved */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN); + /* D: 2-bit field indicating # of data bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_num_data_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + /* P: 3-bit field for parity type */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_parity_type, tvb, offset, 1, ENC_BIG_ENDIAN); + /* S: 2-bit field indicating # of stop bits */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_num_stop_bits, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + payload_length--; + /* CS: 2-byte character sequence number */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data_cs, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + payload_length -= 2; + /* octets */ + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + default: + proto_tree_add_item(sprt_payload_tree, hf_sprt_payload_data, tvb, offset, payload_length, ENC_BIG_ENDIAN); + break; + } + } else { + proto_tree_add_item(sprt_tree, hf_sprt_payload_no_data, tvb, offset, 0, ENC_NA); + col_append_fstr(pinfo->cinfo, COL_INFO, ", No Payload"); + } + + return tvb_length(tvb); +} + +static int +dissect_sprt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + /* Set up structures needed to add the protocol subtree and manage it */ + proto_item *ti; + proto_tree *sprt_tree = NULL; + proto_tree *sprt_ack_field_tree; + guint16 word1; + unsigned int offset = 0; + guint payload_length; + struct _sprt_conversation_info *p_conv_data = NULL; + int i; + + guint16 tc; + guint16 seqnum; /* 0 if TC = 0 or if no payload */ + guint16 noa; + /* ack fields */ + /*guint16 tcn;*/ + /*guint16 sqn;*/ + + /* Make entries in Protocol column and Info column on summary display */ + col_set_str(pinfo->cinfo, COL_PROTOCOL, "SPRT"); + col_clear(pinfo->cinfo, COL_INFO); + + if(tree) + { + /* create the trees */ + ti = proto_tree_add_item(tree, proto_sprt, tvb, 0, -1, ENC_NA); + sprt_tree = proto_item_add_subtree(ti, ett_sprt); + + /* show conversation setup info */ + if (global_sprt_show_setup_info) + { + show_setup_info(tvb, pinfo, sprt_tree); + } + } + + /*SPRT header packet format + +------+-------+-------+-------+-------+-------+---------+-------+ + |0 |1 |2 |3 |4 |5 |6 |7 | + +------+-------+-------+-------+-------+-------+---------+-------+ + | X | SSID | + +----------------------------------------------------------------+ + | R | PT | + +--------------+-------------------------------------------------+ + | TC | Sequence Number | + +--------------+-------------------------------------------------+ + | Sequence Number | + +----------------------------------------------------------------+ + | NOA | Base Sequence Number | + +--------------+-------------------------------------------------+ + | Base Sequence Number | + +----------------------------------------------------------------+ + | TCN | SQN | + +--------------+-------------------------------------------------+ + | SQN | + +----------------------------------------------------------------+ + | TCN | SQN | + +--------------+-------------------------------------------------+ + | SQN | + +----------------------------------------------------------------+ + | TCN | SQN | + +--------------+-------------------------------------------------+ + | SQN | + +----------------------------------------------------------------+ + */ + + /* Get fields needed for further dissection */ + word1 = tvb_get_ntohs(tvb, offset + 2); + tc = (word1 & 0xC000) >> 14; + seqnum = word1 & 0x3FFF; + + noa = (tvb_get_ntohs(tvb, offset + 4) & 0xC000) >> 14; + + /* Get conversation data, or create it if not found */ + p_conv_data = find_sprt_conversation_data(pinfo); + if(!p_conv_data) + { + sprt_add_address(pinfo, + &pinfo->src, pinfo->srcport, + 0, + "SPRT stream", + pinfo->fd->num); + p_conv_data = find_sprt_conversation_data(pinfo); + } + + proto_tree_add_item(sprt_tree, hf_sprt_header_extension_bit, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_tree, hf_sprt_subsession_id, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + proto_tree_add_item(sprt_tree, hf_sprt_reserved_bit, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_tree, hf_sprt_payload_type, tvb, offset, 1, ENC_BIG_ENDIAN); + offset++; + + proto_tree_add_item(sprt_tree, hf_sprt_transport_channel_id, tvb, offset, 2, ENC_BIG_ENDIAN); + ti = proto_tree_add_item(sprt_tree, hf_sprt_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN); + if(tc == 0 && seqnum != 0) + expert_add_info_format(pinfo, ti, PI_PROTOCOL, PI_WARN, "Should be 0 for transport channel 0"); + + p_conv_data->seqnum[tc] = seqnum; /* keep track of seqnum values */ + offset+=2; + + proto_tree_add_item(sprt_tree, hf_sprt_number_of_ack_fields, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_tree, hf_sprt_base_sequence_number, tvb, offset, 2, ENC_BIG_ENDIAN); + offset+=2; + + if(noa) /* parse ack fields? There can be 0 - 3 */ + { + ti = proto_tree_add_item(sprt_tree, hf_sprt_ack_field_items, tvb, offset, 2, ENC_BIG_ENDIAN); + sprt_ack_field_tree = proto_item_add_subtree(ti, ett_sprt_ack_fields); + + for(i = 0; i < noa; i++) + { + proto_tree_add_item(sprt_ack_field_tree, hf_sprt_transport_channel_item, tvb, offset, 2, ENC_BIG_ENDIAN); + proto_tree_add_item(sprt_ack_field_tree, hf_sprt_sequence_item, tvb, offset, 2, ENC_BIG_ENDIAN); + offset += 2; + } + } + + /* put details in the info column */ + col_append_fstr(pinfo->cinfo, COL_INFO, "TC=%u", tc); + if(tc != 0) + col_append_fstr(pinfo->cinfo, COL_INFO, ", Seq=%u", seqnum); + + /* dissect the payload, if any */ + payload_length = tvb_length(tvb) - (6 + noa * 2); /* total sprt length - header stuff */ + dissect_sprt_data(tvb, pinfo, p_conv_data, sprt_tree, offset, payload_length); + + if(noa) + col_append_fstr(pinfo->cinfo, COL_INFO, " (ACK fields present)"); + + return tvb_length(tvb); +} + + + +/* register the protocol with Wireshark */ +void +proto_register_sprt(void) +{ + module_t *sprt_module; + + static hf_register_info hf[] = + { + /* set up fields */ + { + &hf_sprt_setup, + { + "Stream setup", + "sprt.setup", + FT_STRING, + BASE_NONE, + NULL, + 0x0, + "Stream setup, method and frame number", HFILL + } + }, + { + &hf_sprt_setup_frame, + { + "Setup frame", + "sprt.setup-frame", + FT_FRAMENUM, + BASE_NONE, + NULL, + 0x0, + "Frame that set up this stream", HFILL + } + }, + { + &hf_sprt_setup_method, + { + "Setup Method", + "sprt.setup-method", + FT_STRING, + BASE_NONE, + NULL, + 0x0, + "Method used to set up this stream", HFILL + } + }, + /* SPRT header fields: */ + { + &hf_sprt_header_extension_bit, + { + "Header extension bit", + "sprt.x", + FT_BOOLEAN, + 8, + TFS(&tfs_set_notset), + 0x80, + NULL, HFILL + } + }, + { + &hf_sprt_subsession_id, + { + "Sub session ID", + "sprt.ssid", + FT_UINT8, + BASE_DEC, + NULL, + 0x7F, + NULL, HFILL + } + }, + { + &hf_sprt_reserved_bit, + { + "Reserved bit", + "sprt.reserved", + FT_BOOLEAN, + 8, + TFS(&tfs_set_notset), + 0x80, + NULL, HFILL + } + }, + { + &hf_sprt_payload_type, + { + "Payload type", + "sprt.pt", + FT_UINT8, + BASE_DEC, + NULL, + 0x7F, + NULL, HFILL + } + }, + { + &hf_sprt_transport_channel_id, + { + "Transport channel ID", + "sprt.tc", + FT_UINT16, + BASE_DEC, + VALS(sprt_transport_channel_characteristics), + 0xC000, + NULL, HFILL + } + }, + { + &hf_sprt_sequence_number, + { + "Sequence number", + "sprt.seq", + FT_UINT16, + BASE_DEC, + NULL, + 0x3FFF, + NULL, HFILL + } + }, + { + &hf_sprt_number_of_ack_fields, + { + "Number of ACK fields", + "sprt.noa", + FT_UINT16, + BASE_DEC, + NULL, + 0xC000, + NULL, HFILL + } + }, + { + &hf_sprt_base_sequence_number, + { + "Base sequence number", + "sprt.bsqn", + FT_UINT16, + BASE_DEC, + NULL, + 0x3FFF, + NULL, HFILL + } + }, + /* ACK fields, if any: */ + { + &hf_sprt_ack_field_items, /* 0 to 3 items (TCN + SQN) */ + { + "ACK fields", + "sprt.ack.field", + FT_UINT16, + BASE_DEC, + NULL, + 0xC000, + NULL, HFILL + } + }, + { + &hf_sprt_transport_channel_item, + { + "Transport control channel", + "sprt.tcn", + FT_UINT16, + BASE_DEC, + NULL, + 0xC000, + NULL, HFILL + } + }, + { + &hf_sprt_sequence_item, + { + "Sequence number", + "sprt.sqn", + FT_UINT16, + BASE_DEC, + NULL, + 0x3FFF, + NULL, HFILL + } + }, + /* SPRT payload, if any: */ + { + &hf_sprt_payload, + { + "Payload (in bytes)", + "sprt.payload", + FT_UINT32, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_no_data, + { + "No payload", + "sprt.payload", + FT_NONE, + BASE_NONE, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_reserved_bit, + { + "Reserved bit", + "sprt.payload.reserved_bit", + FT_BOOLEAN, + 8, + TFS(&tfs_set_notset), + 0x80, + NULL, HFILL + } + }, + { + &hf_sprt_payload_message_id, + { + "Payload message ID", + "sprt.payload.msgid", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_modem_relay_msg_id_name), + 0x7F, + NULL, HFILL + } + }, + /* SPRT payload fields, if any (depend on payload msgid): */ + /* INIT message */ + { + &hf_sprt_payload_msg_init_all_fields, + { + "Init message fields", + "sprt.payload.msg_init.all_fields", + FT_UINT16, + BASE_HEX, + NULL, + 0xFFFF, /* 0x0 */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_necrxch, + { + "NECRxCH", + "sprt.payload.msg_init.NECRxCH", + FT_BOOLEAN, + 16, + NULL, + 0x8000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_ecrxch, + { + "ECRxCH", + "sprt.payload.msg_init.ECRxCH", + FT_BOOLEAN, + 16, + NULL, + 0x4000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_xid_prof_exch, + { + "XID profile exchange", + "sprt.payload.msg_init.XID_profile_exch", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x2000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_assym_data_types, + { + "Assymetrical data types", + "sprt.payload.msg_init.assym_data_types", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x1000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_i_raw_bit, + { + "I_RAW-BIT", + "sprt.payload.msg_init.opt_moip_types_i_raw_bit", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x0800, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_i_frame, + { + "I_FRAME", + "sprt.payload.msg_init.opt_moip_types_i_frame", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x0400, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_i_char_stat, + { + "I_CHAR-STAT", + "sprt.payload.msg_init.opt_moip_types_i_char_stat", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x0200, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn, + { + "I_CHAR-DYN", + "sprt.payload.msg_init.opt_moip_types_i_char_dyn", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x0100, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_i_octet_cs, + { + "I_OCTET-CS", + "sprt.payload.msg_init.opt_moip_types_i_octet_cs", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x0080, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_i_char_stat_cs, + { + "I_CHAR-STAT-CS", + "sprt.payload.msg_init.opt_moip_types_i_char_stat_cs", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x0040, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_i_char_dyn_cs, + { + "I_CHAR-DYN-CS", + "sprt.payload.msg_init.opt_moip_types_i_char_dyn_cs", + FT_BOOLEAN, + 16, + TFS(&tfs_supported_not_supported), + 0x0020, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_init_opt_moip_types_reserved, + { + "Reserved for ITU-T", + "sprt.payload.msg_init.opt_moip_types_reserved", + FT_UINT16, + BASE_HEX, + NULL, + 0x001F, + NULL, HFILL + } + }, + /* XID_XCHG message */ + { + &hf_sprt_payload_msg_xidxchg_ecp, + { + "Error correcting protocol", + "sprt.payload.msg_xidxchg.ecp", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_ecp_name), + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr1_v42bis, + { + "V.42 bis", + "sprt.payload.msg_xidxchg.xidlr1_v42bis", + FT_BOOLEAN, + 8, + TFS(&tfs_supported_not_supported), + 0x80, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr1_v44, + { + "V.44", + "sprt.payload.msg_xidxchg.xidlr1_v44", + FT_BOOLEAN, + 8, + TFS(&tfs_supported_not_supported), + 0x40, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr1_mnp5, + { + "MNP5", + "sprt.payload.msg_xidxchg.xidlr1_mnp5", + FT_BOOLEAN, + 8, + TFS(&tfs_supported_not_supported), + 0x20, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr1_reserved, + { + "Reserved for ITU-T", + "sprt.payload.msg_xidxchg.xidlr1_reserved", + FT_UINT8, + BASE_HEX, + NULL, + 0x1F, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr2_v42bis_compr_req, + { + "V.42bis data compression request", + "sprt.payload.msg_xidxchg.xidlr2_v42bis_compr_req", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr3and4_v42bis_num_codewords, + { + "V.42bis number of codewords", + "sprt.payload.msg_xidxchg.xidlr3and4_v42bis_num_codewords", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr5_v42bis_max_strlen, + { + "V.42bis maximum string length", + "sprt.payload.msg_xidxchg.xidlr5_v42bis_max_strlen", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr6_v44_capability, + { + "V.44 capability", + "sprt.payload.msg_xidxchg.xidlr6_v44_capability", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr7_v44_compr_req, + { + "V.44 data compression request", + "sprt.payload.msg_xidxchg.xidlr7_v44_compr_req", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr8and9_v44_num_codewords_trans, + { + "V.44 number of codewords in transmit direction", + "sprt.payload.msg_xidxchg.xidlr8and9_v44_num_codewords_trans", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr10and11_v44_num_codewords_recv, + { + "V.44 number of codewords in receive direction", + "sprt.payload.msg_xidxchg.xidlr10and11_v44_num_codewords_recv", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr12_v44_max_strlen_trans, + { + "V.44 maximum string length in transmit direction", + "sprt.payload.msg_xidxchg.xidlr12_v44_max_strlen_trans", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr13_v44_max_strlen_recv, + { + "V.44 maximum string length in receive direction", + "sprt.payload.msg_xidxchg.xidlr13_v44_max_strlen_recv", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr14and15_v44_history_len_trans, + { + "V.44 length of history in transmit direction", + "sprt.payload.msg_xidxchg.xidlr14and15_v44_history_len_trans", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_xidxchg_xidlr16and17_v44_history_len_recv, + { + "V.44 length of history in receive direction", + "sprt.payload.msg_xidxchg.xidlr16and17_v44_history_len_recv", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + /* JM_INFO message */ + { + &hf_sprt_payload_msg_jminfo_category_data, + { + "Category data", + "sprt.payload.msg_jminfo.category_data", + FT_UINT16, + BASE_DEC, + NULL, + 0xFFFF, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_category_id, + { + "Category ID", + "sprt.payload.msg_jminfo.category_id", + FT_UINT16, + BASE_HEX, + VALS(sprt_jm_info_cat_id_name), + 0xF000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_category_ext_info, + { + "Unrecognized category data", + "sprt.payload.msg_jminfo.category_ext_info", + FT_UINT16, + BASE_DEC, + NULL, + 0x0FFF, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_unk_category_info, + { + "Category extension data", + "sprt.payload.msg_jminfo.unk_category_info", + FT_UINT16, + BASE_DEC, + NULL, + 0x0FFF, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_category_leftover_bits, + { + "Leftover bits", /* "Category info leftover bits", */ + "sprt.payload.msg_jminfo.category_leftover_bits", + FT_UINT16, + BASE_HEX, + NULL, + 0x01FF, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_call_function, + { + "Call function", + "sprt.payload.msg_jminfo.call_function", + FT_UINT16, + BASE_DEC, + VALS(sprt_jminfo_tbc_call_funct_name), + 0x0E00, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v34_duplex, + { + "V.34 duplex", + "sprt.payload.msg_jminfo.mod_v34_duplex", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0800, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v34_half_duplex, + { + "V.34 half-duplex", + "sprt.payload.msg_jminfo.mod_v34_half_duplex", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0400, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v32bis_v32, + { + "V.32bis/V.32", + "sprt.payload.msg_jminfo.mod_v32bis_v32", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0200, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v22bis_v22, + { + "V.22bis/V.22", + "sprt.payload.msg_jminfo.mod_v22bis_v22", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0100, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v17, + { + "V.17", + "sprt.payload.msg_jminfo.mod_v17", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0080, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v29_half_duplex, + { + "V.29 half-duplex", + "sprt.payload.msg_jminfo.mod_v29_half_duplex", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0040, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v27ter, + { + "V.27ter", + "sprt.payload.msg_jminfo.mod_v27ter", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0020, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v26ter, + { + "V.26ter", + "sprt.payload.msg_jminfo.mod_v26ter", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0010, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v26bis, + { + "V.26bis", + "sprt.payload.msg_jminfo.mod_v16bis", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0008, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v23_duplex, + { + "V.23 duplex", + "sprt.payload.msg_jminfo.mod_v23_duplex", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0004, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v23_half_duplex, + { + "V.23 half-duplex", + "sprt.payload.msg_jminfo.mod_v23_half_duplex", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0002, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_mod_v21, + { + "V.21", + "sprt.payload.msg_jminfo.mod_v21", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0001, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_protocols, + { + "Protocols", + "sprt.payload.msg_jminfo.protocols", + FT_UINT16, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_jminfo_tbc_protocol_name), + 0x0E00, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_pstn_access_call_dce_cell, + { + "Call DCE is on a cellular connection", + "sprt.payload.msg_jminfo.pstn_access_call_dce_cell", + FT_BOOLEAN, + 16, + NULL, + 0x0800, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_pstn_access_answ_dce_cell, + { + "Answer DCE is on a cellular connection", + "sprt.payload.msg_jminfo.pstn_access_answ_dce_cell", + FT_BOOLEAN, + 16, + NULL, + 0x0400, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_pstn_access_dce_on_digital_net, + { + "DCE is on a digital network connection", + "sprt.payload.msg_jminfo.pstn_access_dce_on_digital_net", + FT_BOOLEAN, + 16, + NULL, + 0x0200, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_analog, + { + "V.90 or V.92 analog modem availability", + "sprt.payload.msg_jminfo.pcm_modem_avail_v90_v92_analog", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0800, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_pcm_modem_avail_v90_v92_digital, + { + "V.90 or V.92 digital modem availability", + "sprt.payload.msg_jminfo.pcm_modem_avail_v90_v92_digital", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0400, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_jminfo_pcm_modem_avail_v91, + { + "V.91 modem availability", + "sprt.payload.msg_jminfo.pcm_modem_avail_v91", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0200, + NULL, HFILL + } + }, + /* START_JM message has no additional fields */ + /* CONNECT message */ + { + &hf_sprt_payload_msg_connect_selmod, + { + "Selected modulation", + "sprt.payload.msg_connect.selmod", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_selmod_name), + 0xFC, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_compr_dir, + { + "Compression direction", + "sprt.payload.msg_connect.compr_dir", + FT_UINT8, + BASE_DEC, + VALS(sprt_comp_direction), + 0x03, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_selected_compr, + { + "Selected compression", + "sprt.payload.msg_connect.selected_compr", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_selected_compr_name), + 0xF0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_selected_err_corr, + { + "Selected error correction", + "sprt.payload.msg_connect.selected_err_corr", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_selected_err_corr_name), + 0x0F, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_tdsr, + { + "Transmit data signalling rate (bits/sec)", + "sprt.payload.msg_connect.tdsr", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_rdsr, + { + "Receive data signalling rate (bits/sec)", + "sprt.payload.msg_connect.rdsr", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_dlci_enabled, + { + "DLCI", + "sprt.payload.msg_connect.dlci_enabled", + FT_BOOLEAN, + 16, + TFS(&tfs_enabled_disabled), + 0x8000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_avail_data_types, + { + "Available data types", + "sprt.payload.msg_connect.avail_data_types", + FT_UINT16, + BASE_HEX, + NULL, + 0x7FFF, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_adt_octet_no_format_no_dlci, + { + "Octet w/o formatting with no DLCI", + "sprt.payload.msg_connect.adt_octet_no_format_no_dlci", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x4000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_adt_i_raw_bit, + { + "I_RAW-BIT", + "sprt.payload.msg_connect.adt_i_raw_bit", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x2000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_adt_i_frame, + { + "I_FRAME", + "sprt.payload.msg_connect.adt_i_frame", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x1000, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_adt_i_char_stat, + { + "I_CHAR-STAT", + "sprt.payload.msg_connect.adt_i_char_stat", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0800, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_adt_i_char_dyn, + { + "I_CHAR-DYN", + "sprt.payload.msg_connect.adt_i_char_dyn", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0400, + NULL, HFILL + } + }, + { /* from V.150.1 amendment 2 (5-2006): */ + &hf_sprt_payload_msg_connect_adt_i_octet_cs, + { + "I_OCTET-CS", + "sprt.payload.msg_connect.adt_i_octet_cs", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0200, + NULL, HFILL + } + }, + { /* from V.150.1 amendment 2 (5-2006): */ + &hf_sprt_payload_msg_connect_adt_i_char_stat_cs, + { + "I_CHAR-STAT-CS", + "sprt.payload.msg_connect.adt_i_char_stat_cs", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0100, + NULL, HFILL + } + }, + { /* from V.150.1 amendment 2 (5-2006): */ + &hf_sprt_payload_msg_connect_adt_i_char_dyn_cs, + { + "I_CHAR-DYN-CS", + "sprt.payload.msg_connect.adt_i_char_dyn_cs", + FT_BOOLEAN, + 16, + TFS(&tfs_available_not_available), + 0x0080, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_adt_reserved, + { + "Reserved for ITU-T", + "sprt.payload.msg_connect.adt_reserved", + FT_UINT16, + BASE_HEX, + NULL, + 0x007F, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_compr_trans_dict_sz, + { + "Compression transmit dictionary size", + "sprt.payload.msg_connect.compr_trans_dict_sz", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_compr_recv_dict_sz, + { + "Compression receive dictionary size", + "sprt.payload.msg_connect.compr_recv_dict_sz", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_compr_trans_str_len, + { + "Compression transmit string length", + "sprt.payload.msg_connect.compr_trans_str_len", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_compr_recv_str_len, + { + "Compression receive string length", + "sprt.payload.msg_connect.compr_recv_str_len", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_compr_trans_hist_sz, + { + "Compression transmit history size", + "sprt.payload.msg_connect.compr_trans_hist_sz", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_connect_compr_recv_hist_sz, + { + "Compression receive history size", + "sprt.payload.msg_connect.compr_recv_hist_sz", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + /* BREAK message */ + { + &hf_sprt_payload_msg_break_source_proto, + { + "Break source protocol", + "sprt.payload.msg_break.source_proto", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_break_src_proto_name), + 0xF0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_break_type, + { + "Break type", + "sprt.payload.msg_break.type", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_break_type_name), + 0x0F, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_break_length, + { + "Break length (x10 msec)", + "sprt.payload.msg_break.length", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + /* BREAK_ACK message has no additional fields */ + /* MR_EVENT message */ + { + &hf_sprt_payload_msg_mr_event_id, + { + "Modem relay event ID", + "sprt.payload.msg_mr_event.id", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_mrevent_id_name), + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_reason_code, + { + "Reason code", + "sprt.payload.msg_mr_event.reason_code", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_mrevent_reason_code_name), + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_selmod, + { + "Selected modulation", + "sprt.payload.msg_mr_event.selmod", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_selmod_name), + 0xFC, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_txsen, + { + "TxSEN", + "sprt.payload.msg_mr_event.txsen", + FT_BOOLEAN, + 8, + TFS(&tfs_enabled_disabled), + 0x02, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_rxsen, + { + "RxSEN", + "sprt.payload.msg_mr_event.rxsen", + FT_BOOLEAN, + 8, + TFS(&tfs_enabled_disabled), + 0x01, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_tdsr, + { + "Transmit data signalling rate (bits/sec)", + "sprt.payload.msg_mr_event.tdsr", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_rdsr, + { + "Receive data signalling rate (bits/sec)", + "sprt.payload.msg_mr_event.rdsr", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_txsr, + { + "Physical layer transmitter symbol rate (TxSR)", + "sprt.payload.msg_mr_event.txsr", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_mrevent_phys_layer_symbol_rate), + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_mr_evt_rxsr, + { + "Physical layer receiver symbol rate (RxSR)", + "sprt.payload.msg_mr_event.rxsr", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_mrevent_phys_layer_symbol_rate), + 0x0, + NULL, HFILL + } + }, + /* CLEARDOWN message */ + { + &hf_sprt_payload_msg_cleardown_reason_code, + { + "Reason code", + "sprt.payload.msg_cleardown.reason_code", + FT_UINT8, + BASE_DEC, + VALS(sprt_cleardown_reason), + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_cleardown_vendor_tag, + { + "Vendor tag", + "sprt.payload.msg_cleardown.vendor_tag", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_cleardown_vendor_info, + { + "Vendor info", + "sprt.payload.msg_cleardown.vendor_info", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + /* PROF_XCHG message */ + { + &hf_sprt_payload_msg_profxchg_v42_lapm, + { + "V.42/LAPM protocol support", + "sprt.payload.msg_profxchg.v42_lapm", + FT_UINT8, + BASE_DEC, + VALS(sprt_prof_xchg_support), + 0xC0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_annex_av42, + { + "Annex A/V.42(1996) protocol support", + "sprt.payload.msg_profxchg.annex_av42", + FT_UINT8, + BASE_DEC, + VALS(sprt_prof_xchg_support), + 0x30, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_v44_compr, + { + "V.44 compression support", + "sprt.payload.msg_profxchg.v44_compr", + FT_UINT8, + BASE_DEC, + VALS(sprt_prof_xchg_support), + 0x0C, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_v42bis_compr, + { + "V.42bis compression support", + "sprt.payload.msg_profxchg.v42bis_compr", + FT_UINT8, + BASE_DEC, + VALS(sprt_prof_xchg_support), + 0x03, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_mnp5_compr, + { + "MNP5 compression support", + "sprt.payload.msg_profxchg.mnp5_compr", + FT_UINT8, + BASE_DEC, + VALS(sprt_prof_xchg_support), + 0xC0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_reserved, + { + "Reserved for ITU-T", + "sprt.payload.msg_profxchg.reserved", + FT_UINT8, + BASE_HEX, + NULL, + 0x3F, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr2_v42bis_compr_req, + { + "V.42bis data compression request", + "sprt.payload.msg_profxchg.xidlr2_v42bis_compr_req", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr3and4_v42bis_num_codewords, + { + "V.42bis number of codewords", + "sprt.payload.msg_profxchg.xidlr3and4_v42bis_num_codewords", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr5_v42bis_max_strlen, + { + "V.42bis maximum string length", + "sprt.payload.msg_profxchg.xidlr5_v42bis_max_strlen", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr6_v44_capability, + { + "V.44 capability", + "sprt.payload.msg_profxchg.xidlr6_v44_capability", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr7_v44_compr_req, + { + "V.44 data compression request", + "sprt.payload.msg_profxchg.xidlr7_v44_compr_req", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr8and9_v44_num_codewords_trans, + { + "V.44 number of codewords in transmit direction", + "sprt.payload.msg_profxchg.xidlr8and9_v44_num_codewords_trans", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr10and11_v44_num_codewords_recv, + { + "V.44 number of codewords in receive direction", + "sprt.payload.msg_profxchg.xidlr10and11_v44_num_codewords_recv", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr12_v44_max_strlen_trans, + { + "V.44 maximum string length in transmit direction", + "sprt.payload.msg_profxchg.xidlr12_v44_max_strlen_trans", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr13_v44_max_strlen_recv, + { + "V.44 maximum string length in receive direction", + "sprt.payload.msg_profxchg.xidlr13_v44_max_strlen_recv", + FT_UINT8, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr14and15_v44_history_len_trans, + { + "V.44 length of history in transmit direction", + "sprt.payload.msg_profxchg.xidlr14and15_v44_history_len_trans", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_msg_profxchg_xidlr16and17_v44_history_len_recv, + { + "V.44 length of history in receive direction", + "sprt.payload.msg_profxchg.xidlr16and17_v44_history_len_recv", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + /* User data messages... */ + /* I_OCTET message: need to use DLCI field (8 or 16 bits) if indicated by CONNECT message */ + { + &hf_sprt_payload_i_octet_no_dlci, + { + "No DLCI field", + "sprt.payload.i_octet_no_dlci", + FT_NONE, + BASE_NONE, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_i_octet_dlci_presence_unknown, + { + "Not known if DLCI field is present", + "sprt.payload.i_octet_dlci_presence_unknown", + FT_NONE, + BASE_NONE, + NULL, + 0x0, + NULL, HFILL + } + }, + { + &hf_sprt_payload_i_octet_dlci1, + { + "DLCI #1", + "sprt.payload.i_octet_dlci1", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_payload_dlci1), + 0xFC, + NULL, HFILL + } + }, + { + &hf_sprt_payload_i_octet_cr, + { + "Command/response bit", + "sprt.payload.i_octet_cr", + FT_BOOLEAN, + 8, + NULL, + 0x02, + NULL, HFILL + } + }, + { + &hf_sprt_payload_i_octet_ea, + { + "Address field extension bit", + "sprt.payload.i_octet_ea", + FT_BOOLEAN, + 8, + TFS(&sprt_payload_ea_bit), + 0x01, + NULL, HFILL + } + }, + { + &hf_sprt_payload_i_octet_dlci2, + { + "DLCI #2", + "sprt.payload.i_octet_dlci2", + FT_UINT8, + BASE_DEC | BASE_RANGE_STRING, + RVALS(sprt_payload_dlci2), + 0xFE, + NULL, HFILL + } + }, + { + &hf_sprt_payload_i_octet_dlci_setup_by_connect_frame, + { + "DLCI setup by CONNECT message at frame", + "sprt.payload.i_octet_dlci_setup_by_connect_frame", + FT_FRAMENUM, + BASE_NONE, + NULL, + 0x0, + NULL, HFILL + } + }, + /* fields for I_RAW_OCTET message (L; L,N) */ + { + &hf_sprt_payload_rawoctet_n_field_present, + { + "N field", + "sprt.payload.rawoctet_n_field_present", + FT_BOOLEAN, + 8, + TFS(&tfs_present_absent), + 0x80, + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawoctet_l, + { + "L: # of octets in segment minus one", + "sprt.payload.rawoctet_l", + FT_UINT8, + BASE_DEC, + NULL, + 0x7F, + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawoctet_n, + { + "N: # of times octets appear in data minus 2", + "sprt.payload.rawoctet_n", + FT_UINT8, + BASE_DEC, + NULL, + 0xFF, + NULL, HFILL + } + }, + /* fields for I_RAW_BIT (L; L,P; L,P,N) */ + { + &hf_sprt_payload_rawbit_included_fields_l, + { + "Include field L only", + "sprt.payload.rawbit_included_fields_l", + FT_UINT8, + BASE_DEC, + NULL, + 0xC0, /* top two bits: 00 */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawbit_included_fields_lp, + { + "Include fields L, P", + "sprt.payload.rawbit_field_format_lp", + FT_UINT8, + BASE_DEC, + NULL, + 0xC0, /* top two bits: 01 */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawbit_included_fields_lpn, + { + "Include fields L, P, N", + "sprt.payload.rawbit_included_fields_lpn", + FT_UINT8, + BASE_DEC, + NULL, + 0x80, /* top bit: 1 */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawbit_len_a, + { + "L: # of octets in segment", + "sprt.payload.rawbit_len_a", + FT_UINT8, + BASE_DEC, + NULL, + 0x3F, /* six bits */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawbit_len_b, + { + "L: # of octets in segment", + "sprt.payload.rawbit_len_b", + FT_UINT8, + BASE_DEC, + NULL, + 0x38, /* three bits */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawbit_len_c, + { + "L: # of octets in segment", + "sprt.payload.rawbit_len_c", + FT_UINT8, + BASE_DEC, + NULL, + 0x78, /* four bits */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawbit_p, + { + "P: # of low-order bits in last octet that are not in segment", + "sprt.payload.rawbit_p", + FT_UINT8, + BASE_DEC, + NULL, + 0x7, /* three bits */ + NULL, HFILL + } + }, + { + &hf_sprt_payload_rawbit_n, + { + "N: # of times octets appear in data minus 2", + "sprt.payload.rawbit_n", + FT_UINT8, + BASE_DEC, + NULL, + 0xFF, /* eight bits */ + NULL, HFILL + } + }, + /* fields in I_CHAR_STAT & I_CHAR_DYN messages */ + { + &hf_sprt_payload_data_reserved_bit, + { + "Reserved bit", + "sprt.payload.reserved_bit", + FT_BOOLEAN, + 8, + TFS(&tfs_set_notset), + 0x80, + NULL, HFILL + } + }, + { + &hf_sprt_payload_data_num_data_bits, + { + "D: Number of data bits", + "sprt.payload.num_data_bits", + FT_UINT8, + BASE_DEC, + VALS(sprt_payload_data_bits), + 0x60, + NULL, HFILL + } + }, + { + &hf_sprt_payload_data_parity_type, + { + "P: Parity type", + "sprt.payload.parity_type", + FT_UINT8, + BASE_DEC, + VALS(sprt_payload_parity), + 0x1C, + NULL, HFILL + } + }, + { + &hf_sprt_payload_num_stop_bits, + { + "S: Number stop bits", + "sprt.payload.num_stop_bits", + FT_UINT8, + BASE_DEC, + VALS(sprt_payload_stop_bits), + 0x03, + NULL, HFILL + } + }, + /* sequence field in I_OCTET_CS, I_CHAR_STAT_CS, & I_CHAR_DYN_CS messages */ + { + &hf_sprt_payload_data_cs, + { + "Character sequence number", + "sprt.payload.cs", + FT_UINT16, + BASE_DEC, + NULL, + 0x0, + NULL, HFILL + } + }, + /* fields for I_FRAME: */ + { + &hf_sprt_payload_frame_reserved_bits, + { + "Reserved bits", + "sprt.payload.frame_reserved_bits", + FT_UINT8, + BASE_HEX, + NULL, + 0xFC, + NULL, HFILL + } + }, + { + &hf_sprt_payload_frame_state, + { + "Frame state", + "sprt.payload.frame_state", + FT_UINT8, + BASE_DEC, + VALS(sprt_payload_frame_state), + 0x03, + NULL, HFILL + } + }, + /* just dump remaining payload data: */ + { + &hf_sprt_payload_data, + { + "Payload data", + "sprt.payload.data", + FT_BYTES, + BASE_NONE, + NULL, + 0x0, + NULL, HFILL + } + }, + }; /* hf_register_info hf[] */ + + /* setup protocol subtree array */ + static gint *ett[] = { + &ett_sprt, + &ett_sprt_setup, + &ett_sprt_ack_fields, + &ett_payload, + &ett_init_msg_all_fields, + &ett_jminfo_msg_cat_data, + &ett_connect_msg_adt + }; + + /* register protocol name & description */ + proto_sprt = proto_register_protocol("Simple Packet Relay Transport", "SPRT", "sprt"); + + /* required function calls to register the header fields and subtrees used */ + proto_register_field_array(proto_sprt, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + + /* register the dissector */ + new_register_dissector("sprt", dissect_sprt, proto_sprt); + + sprt_module = prefs_register_protocol(proto_sprt, NULL); + + /* preferences */ + prefs_register_bool_preference(sprt_module, "show_setup_info", + "Show stream setup information", + "Where available, show which protocol and frame caused " + "this SPRT stream to be created", + &global_sprt_show_setup_info); + prefs_register_bool_preference(sprt_module, "show_dlci_info", + "Show DLCI in I_OCTET messages", + "Show the DLCI field in I_OCTET messages as well as the frame that " + "enabled/disabled the DLCI", + &global_sprt_show_dlci_info); + +} + +void +proto_reg_handoff_sprt(void) +{ + sprt_handle = find_dissector("sprt"); + dissector_add_handle("udp.port", sprt_handle); + heur_dissector_add( "udp", dissect_sprt_heur, proto_sprt); +} |