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wireshark/epan/dissectors/packet-t30.c

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/* packet-t30.c
* Routines for T.30 packet dissection
* 2006 Alejandro Vaquero, add T30 reassemble and dissection
*
* http://www.itu.int/rec/T-REC-T.30-200509-I/en
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/expert.h>
#include <epan/charsets.h>
#include "packet-t38.h"
#include "packet-t30.h"
void proto_register_t30(void);
/* T30 */
static int proto_t30 = -1;
static int hf_t30_Address = -1;
static int hf_t30_Control = -1;
static int hf_t30_Facsimile_Control = -1;
static int hf_t30_fif_sm = -1;
static int hf_t30_fif_rtif = -1;
static int hf_t30_fif_3gmn = -1;
static int hf_t30_fif_v8c = -1;
static int hf_t30_fif_op = -1;
static int hf_t30_fif_rtfc = -1;
static int hf_t30_fif_rfo = -1;
static int hf_t30_fif_dsr = -1;
static int hf_t30_fif_dsr_dcs = -1;
static int hf_t30_fif_res = -1;
static int hf_t30_fif_tdcc = -1;
static int hf_t30_fif_rwc = -1;
static int hf_t30_fif_rw_dcs = -1;
static int hf_t30_fif_rlc = -1;
static int hf_t30_fif_rl_dcs = -1;
static int hf_t30_fif_msltcr = -1;
static int hf_t30_fif_mslt_dcs = -1;
static int hf_t30_fif_ext = -1;
static int hf_t30_fif_cm = -1;
static int hf_t30_fif_ecm = -1;
static int hf_t30_fif_fs_dcs = -1;
static int hf_t30_fif_t6 = -1;
static int hf_t30_fif_fvc = -1;
static int hf_t30_fif_mspc = -1;
static int hf_t30_fif_ps = -1;
static int hf_t30_fif_t43 = -1;
static int hf_t30_fif_pi = -1;
static int hf_t30_fif_vc32k = -1;
static int hf_t30_fif_r8x15 = -1;
static int hf_t30_fif_300x300 = -1;
static int hf_t30_fif_r16x15 = -1;
static int hf_t30_fif_ibrp = -1;
static int hf_t30_fif_mbrp = -1;
static int hf_t30_fif_msltchr = -1;
static int hf_t30_fif_rts = -1;
static int hf_t30_fif_sp = -1;
static int hf_t30_fif_sc = -1;
static int hf_t30_fif_passw = -1;
static int hf_t30_fif_sit = -1;
static int hf_t30_fif_rttd = -1;
static int hf_t30_fif_bft = -1;
static int hf_t30_fif_dtm = -1;
static int hf_t30_fif_edi = -1;
static int hf_t30_fif_btm = -1;
static int hf_t30_fif_rttcmmd = -1;
static int hf_t30_fif_chrm = -1;
static int hf_t30_fif_mm = -1;
static int hf_t30_fif_pm26 = -1;
static int hf_t30_fif_dnc = -1;
static int hf_t30_fif_do = -1;
static int hf_t30_fif_jpeg = -1;
static int hf_t30_fif_fcm = -1;
static int hf_t30_fif_pht = -1;
static int hf_t30_fif_12c = -1;
static int hf_t30_fif_ns = -1;
static int hf_t30_fif_ci = -1;
static int hf_t30_fif_cgr = -1;
static int hf_t30_fif_nalet = -1;
static int hf_t30_fif_naleg = -1;
static int hf_t30_fif_spscb = -1;
static int hf_t30_fif_spsco = -1;
static int hf_t30_fif_hkm = -1;
static int hf_t30_fif_rsa = -1;
static int hf_t30_fif_oc = -1;
static int hf_t30_fif_hfx40 = -1;
static int hf_t30_fif_acn2c = -1;
static int hf_t30_fif_acn3c = -1;
static int hf_t30_fif_hfx40i = -1;
static int hf_t30_fif_ahsn2 = -1;
static int hf_t30_fif_ahsn3 = -1;
static int hf_t30_fif_t441 = -1;
static int hf_t30_fif_t442 = -1;
static int hf_t30_fif_t443 = -1;
static int hf_t30_fif_plmss = -1;
static int hf_t30_fif_cg300 = -1;
static int hf_t30_fif_100x100cg = -1;
static int hf_t30_fif_spcbft = -1;
static int hf_t30_fif_ebft = -1;
static int hf_t30_fif_isp = -1;
static int hf_t30_fif_ira = -1;
static int hf_t30_fif_600x600 = -1;
static int hf_t30_fif_1200x1200 = -1;
static int hf_t30_fif_300x600 = -1;
static int hf_t30_fif_400x800 = -1;
static int hf_t30_fif_600x1200 = -1;
static int hf_t30_fif_cg600x600 = -1;
static int hf_t30_fif_cg1200x1200 = -1;
static int hf_t30_fif_dspcam = -1;
static int hf_t30_fif_dspccm = -1;
static int hf_t30_fif_bwmrcp = -1;
static int hf_t30_fif_t45 = -1;
static int hf_t30_fif_sdmc = -1;
static int hf_t30_fif_number = -1;
static int hf_t30_fif_country_code = -1;
static int hf_t30_fif_non_stand_bytes = -1;
static int hf_t30_t4_frame_num = -1;
static int hf_t30_t4_data = -1;
static int hf_t30_partial_page_fcf2 = -1;
static int hf_t30_partial_page_i1 = -1;
static int hf_t30_partial_page_i2 = -1;
static int hf_t30_partial_page_i3 = -1;
static int hf_t30_partial_page_request_frame_count = -1;
static int hf_t30_partial_page_request_frames = -1;
static gint ett_t30 = -1;
static gint ett_t30_fif = -1;
static expert_field ei_t30_bad_length = EI_INIT;
static expert_field ei_t30_Address_FF = EI_INIT;
static expert_field ei_t30_Control_C0C8 = EI_INIT;
static const value_string t30_control_vals[] = {
{ 0xC0, "non-final frames within the procedure" },
{ 0xC8, "final frames within the procedure" },
{ 0, NULL }
};
// initial identification - format 0000 XXXX
#define T30_FC_DIS 0x01
#define T30_FC_CSI 0x02
#define T30_FC_NSF 0x04
// pre-message response signals - format X010 XXXX
#define T30_FC_CFR 0x21
#define T30_FC_FTT 0x22
#define T30_FC_CTR 0x23
#define T30_FC_CSA 0x24
// post-message resopnses - format X011 XXXX
#define T30_FC_MCF 0x31
#define T30_FC_RTN 0x32
#define T30_FC_RTP 0x33
#define T30_FC_PIN 0x34
#define T30_FC_PIP 0x35
#define T30_FC_PID 0x36
#define T30_FC_RNR 0x37
#define T30_FC_ERR 0x38
#define T30_FC_PPR 0x3D
#define T30_FC_FDM 0x3F
// command to receive - format X100 XXXX
#define T30_FC_DCS 0x41
#define T30_FC_TSI 0x42
#define T30_FC_SUB 0x43
#define T30_FC_NSS 0x44
#define T30_FC_SID 0x45
#define T30_FC_TSA 0x46
#define T30_FC_IRA 0x47
#define T30_FC_CTC 0x48
// other line control signals - format X101 XXXX
#define T30_FC_FNV 0x53
#define T30_FC_TR 0x56
#define T30_FC_TNR 0x57
#define T30_FC_CRP 0x58
#define T30_FC_DCN 0x5F
// not sure about the format and mask
#define T30_FC_FCD 0x60
#define T30_FC_RCP 0x61
// post-message commands - format X111 XXXX
#define T30_FC_EOM 0x71
#define T30_FC_MPS 0x72
#define T30_FC_EOR 0x73
#define T30_FC_EOP 0x74
#define T30_FC_RR 0x76
#define T30_FC_PRI_EOP2 0x78
#define T30_FC_PRI_EOM 0x79
#define T30_FC_PRI_MPS 0x7A
#define T30_FC_PRI_EOP 0x7C
#define T30_FC_PPS 0x7D
// Command to send - format 1000 XXXX
#define T30_FC_DTC 0x81
#define T30_FC_CIG 0x82
#define T30_FC_PWD 0x83
#define T30_FC_NSC 0x84
#define T30_FC_SEP 0x85
#define T30_FC_PSA 0x86
#define T30_FC_CIA 0x87
#define T30_FC_ISP 0x88
static const value_string t30_facsimile_control_field_vals[] = {
/* 0x01 */ { T30_FC_DIS, "Digital Identification Signal" },
/* 0x02 */ { T30_FC_CSI, "Called Subscriber Identification" },
/* 0x04 */ { T30_FC_NSF, "Non-Standard Facilities" },
/* 0x21 */ { T30_FC_CFR, "Confirmation To Receive" },
/* 0x22 */ { T30_FC_FTT, "Failure To Train" },
/* 0x23 */ { T30_FC_CTR, "Response for Continue To Correct" },
/* 0x24 */ { T30_FC_CSA, "Called Subscriber Internet Address" },
/* 0x31 */ { T30_FC_MCF, "Message Confirmation" },
/* 0x32 */ { T30_FC_RTN, "Retrain Negative" },
/* 0x33 */ { T30_FC_RTP, "Retrain Positive" },
/* 0x34 */ { T30_FC_PIN, "Procedure Interrupt Negative" },
/* 0x35 */ { T30_FC_PIP, "Procedure Interrupt Positive" },
/* 0x36 */ { T30_FC_PID, "Procedure Interrupt Disconnect" },
/* 0x37 */ { T30_FC_RNR, "Receive Not Ready" },
/* 0x38 */ { T30_FC_ERR, "Response for End of Retransmission" },
/* 0x3D */ { T30_FC_PPR, "Partial Page Request" },
/* 0x3F */ { T30_FC_FDM, "File Diagnostics Message" },
/* 0x41 */ { T30_FC_DCS, "Digital Command Signal" },
/* 0x42 */ { T30_FC_TSI, "Transmitting Subscriber Identification" },
/* 0x43 */ { T30_FC_SUB, "Subaddress" },
/* 0x44 */ { T30_FC_NSS, "Non-Standard facilities Set-up" },
/* 0x45 */ { T30_FC_SID, "Sender Identification" },
/* 0x46 */ { T30_FC_TSA, "Transmitting Subscriber Internet address" },
/* 0x47 */ { T30_FC_IRA, "Internet Routing Address" },
/* 0x48 */ { T30_FC_CTC, "Continue To Correct" },
/* 0x53 */ { T30_FC_FNV, "Field Not Valid" },
/* 0x56 */ { T30_FC_TR, "Transmit ready" },
/* 0x57 */ { T30_FC_TNR, "Transmit not ready" },
/* 0x58 */ { T30_FC_CRP, "Command Repeat" },
/* 0x5F */ { T30_FC_DCN, "Disconnect" },
/* 0x60 */ { T30_FC_FCD, "Facsimile coded data" },
/* 0x61 */ { T30_FC_RCP, "Return to control for partial page" },
/* 0x71 */ { T30_FC_EOM, "End Of Message" },
/* 0x72 */ { T30_FC_MPS, "MultiPage Signal" },
/* 0x73 */ { T30_FC_EOR, "End Of Retransmission" },
/* 0x74 */ { T30_FC_EOP, "End Of Procedure" },
/* 0x76 */ { T30_FC_RR, "Receive Ready" },
/* 0x78 */ { T30_FC_PRI_EOP2, "Procedure Interrupt-End Of Procedure" },
/* 0x79 */ { T30_FC_PRI_EOM, "Procedure Interrupt-End Of Message" },
/* 0x7A */ { T30_FC_PRI_MPS, "Procedure Interrupt-MultiPage Signal" },
/* 0x7C */ { T30_FC_PRI_EOP, "Procedure Interrupt-End Of Procedure" },
/* 0x7D */ { T30_FC_PPS, "Partial Page Signal" },
/* 0x81 */ { T30_FC_DTC, "Digital Transmit Command" },
/* 0x82 */ { T30_FC_CIG, "Calling Subscriber Identification" },
/* 0x83 */ { T30_FC_PWD, "Password" },
/* 0x84 */ { T30_FC_NSC, "Non-Standard facilities Command" },
/* 0x85 */ { T30_FC_SEP, "Selective Polling" },
/* 0x86 */ { T30_FC_PSA, "Polled Subaddress" },
/* 0x87 */ { T30_FC_CIA, "Calling subscriber Internet Address" },
/* 0x88 */ { T30_FC_ISP, "Internet Selective Polling Address" },
{ 0, NULL }
};
value_string_ext t30_facsimile_control_field_vals_ext =
VALUE_STRING_EXT_INIT(t30_facsimile_control_field_vals);
static const value_string t30_facsimile_control_field_vals_short[] = {
/* 0x01 */ { T30_FC_DIS, "DIS" },
/* 0x02 */ { T30_FC_CSI, "CSI" },
/* 0x04 */ { T30_FC_NSF, "NSF" },
/* 0x21 */ { T30_FC_CFR, "CFR" },
/* 0x22 */ { T30_FC_FTT, "FTT" },
/* 0x23 */ { T30_FC_CTR, "CTR" },
/* 0x24 */ { T30_FC_CSA, "CSA" },
/* 0x31 */ { T30_FC_MCF, "MCF" },
/* 0x32 */ { T30_FC_RTN, "RTN" },
/* 0x33 */ { T30_FC_RTP, "RTP" },
/* 0x34 */ { T30_FC_PIN, "PIN" },
/* 0x35 */ { T30_FC_PIP, "PIP" },
/* 0x36 */ { T30_FC_PID, "PID" },
/* 0x37 */ { T30_FC_RNR, "RNR" },
/* 0x38 */ { T30_FC_ERR, "ERR" },
/* 0x3D */ { T30_FC_PPR, "PPR" },
/* 0x3F */ { T30_FC_FDM, "FDM" },
/* 0x41 */ { T30_FC_DCS, "DCS" },
/* 0x42 */ { T30_FC_TSI, "TSI" },
/* 0x43 */ { T30_FC_SUB, "SUB" },
/* 0x44 */ { T30_FC_NSS, "NSS" },
/* 0x45 */ { T30_FC_SID, "SID" },
/* 0x46 */ { T30_FC_TSA, "TSA" },
/* 0x47 */ { T30_FC_IRA, "IRA" },
/* 0x48 */ { T30_FC_CTC, "CTC" },
/* 0x53 */ { T30_FC_FNV, "FNV" },
/* 0x56 */ { T30_FC_TR, "TR" },
/* 0x57 */ { T30_FC_TNR, "TNR" },
/* 0x58 */ { T30_FC_CRP, "CRP" },
/* 0x5F */ { T30_FC_DCN, "DCN" },
/* 0x60 */ { T30_FC_FCD, "FCD" },
/* 0x61 */ { T30_FC_RCP, "RCP" },
/* 0x71 */ { T30_FC_EOM, "EOM" },
/* 0x72 */ { T30_FC_MPS, "MPS" },
/* 0x73 */ { T30_FC_EOR, "EOR" },
/* 0x74 */ { T30_FC_EOP, "EOP" },
/* 0x76 */ { T30_FC_RR, "RR" },
/* 0x78 */ { T30_FC_PRI_EOP2, "EOP2" },
/* 0x79 */ { T30_FC_PRI_EOM, "PRI_EOM" },
/* 0x7A */ { T30_FC_PRI_MPS, "PRI_MPS" },
/* 0x7C */ { T30_FC_PRI_EOP, "EOP" },
/* 0x7D */ { T30_FC_PPS, "PPS" },
/* 0x81 */ { T30_FC_DTC, "DTC" },
/* 0x82 */ { T30_FC_CIG, "CIG" },
/* 0x83 */ { T30_FC_PWD, "PWD" },
/* 0x84 */ { T30_FC_NSC, "NSC" },
/* 0x85 */ { T30_FC_SEP, "SEP" },
/* 0x86 */ { T30_FC_PSA, "PSA" },
/* 0x87 */ { T30_FC_CIA, "CIA" },
/* 0x88 */ { T30_FC_ISP, "ISP" },
{ 0, NULL }
};
value_string_ext t30_facsimile_control_field_vals_short_ext =
VALUE_STRING_EXT_INIT(t30_facsimile_control_field_vals_short);
static const value_string t30_data_signalling_rate_vals[] = {
{ 0x00, "ITU-T V.27 ter fall-back mode" },
{ 0x01, "Not used" },
{ 0x02, "Not used" },
{ 0x03, "Not used" },
{ 0x04, "ITU-T V.27 ter" },
{ 0x05, "Reserved" },
{ 0x06, "Reserved" },
{ 0x07, "Reserved" },
{ 0x08, "ITU-T V.29" },
{ 0x09, "Not used" },
{ 0x0A, "Not used" },
{ 0x0B, "Not used" },
{ 0x0C, "ITU-T V.27 ter and V.29" },
{ 0x0D, "ITU-T V.27 ter, V.29, and V.17" },
{ 0x0E, "Invalid" },
{ 0x0F, "Reserved" },
{ 0, NULL }
};
static value_string_ext t30_data_signalling_rate_vals_ext =
VALUE_STRING_EXT_INIT(t30_data_signalling_rate_vals);
static const value_string t30_data_signalling_rate_dcs_vals[] = {
{ 0x00, "2400 bit/s, ITU-T V.27 ter" },
{ 0x01, "14 400 bit/s, ITU-T V.17" },
{ 0x02, "Invalid" },
{ 0x03, "Reserved" },
{ 0x04, "4800 bit/s, ITU-T V.27 ter" },
{ 0x05, "12 000 bit/s, ITU-T V.17" },
{ 0x06, "Invalid" },
{ 0x07, "Reserved" },
{ 0x08, "9600 bit/s, ITU-T V.29" },
{ 0x09, "9600 bit/s, ITU-T V.17" },
{ 0x0A, "Reserved" },
{ 0x0B, "Reserved" },
{ 0x0C, "7200 bit/s, ITU-T V.29" },
{ 0x0D, "7200 bit/s, ITU-T V.17" },
{ 0x0E, "Reserved" },
{ 0x0F, "Reserved" },
{ 0, NULL }
};
static value_string_ext t30_data_signalling_rate_dcs_vals_ext =
VALUE_STRING_EXT_INIT(t30_data_signalling_rate_dcs_vals);
static const value_string t30_recording_width_capabilities_vals[] = {
{ 0x00, "Scan line length 215 mm +- 1%" },
{ 0x01, "Scan line length 215 mm +- 1% and Scan line length 255 mm +- 1% and Scan line length 303 mm +- 1%" },
{ 0x02, "Scan line length 215 mm +- 1% and Scan line length 255 mm +- 1%" },
{ 0x03, "Invalid" },
{ 0, NULL }
};
static const value_string t30_recording_width_dcs_vals[] = {
{ 0x00, "Scan line length 215 mm +- 1%" },
{ 0x01, "Scan line length 303 mm +- 1%" },
{ 0x02, "Scan line length 255 mm +- 1%" },
{ 0x03, "Invalid" },
{ 0, NULL }
};
static const value_string t30_recording_length_capability_vals[] = {
{ 0x00, "A4 (297 mm)" },
{ 0x01, "Unlimited" },
{ 0x02, "A4 (297 mm) and B4 (364 mm)" },
{ 0x03, "Invalid" },
{ 0, NULL }
};
static const value_string t30_recording_length_dcs_vals[] = {
{ 0x00, "A4 (297 mm)" },
{ 0x01, "Unlimited" },
{ 0x02, "B4 (364 mm)" },
{ 0x03, "Invalid" },
{ 0, NULL }
};
static const value_string t30_minimum_scan_line_time_rec_vals[] = {
{ 0x00, "20 ms at 3.85 l/mm: T7.7 = T3.85" },
{ 0x01, "40 ms at 3.85 l/mm: T7.7 = T3.85" },
{ 0x02, "10 ms at 3.85 l/mm: T7.7 = T3.85" },
{ 0x04, "05 ms at 3.85 l/mm: T7.7 = T3.85" },
{ 0x03, "10 ms at 3.85 l/mm: T7.7 = 1/2 T3.85" },
{ 0x06, "20 ms at 3.85 l/mm: T7.7 = 1/2 T3.85" },
{ 0x05, "40 ms at 3.85 l/mm: T7.7 = 1/2 T3.85" },
{ 0x07, "00 ms at 3.85 l/mm: T7.7 = T3.85" },
{ 0, NULL }
};
static const value_string t30_partial_page_fcf2_vals[] = {
{ 0x00, "NULL code which indicates the partial page boundary" },
{ 0xF1, "EOM in optional T.4 error correction mode" },
{ 0xF2, "MPS in optional T.4 error correction mode" },
{ 0xF4, "EOP in optional T.4 error correction mode" },
{ 0xF8, "EOS in optional T.4 error correction mode" },
{ 0xF9, "PRI-EOM in optional T.4 error correction mode" },
{ 0xFA, "PRI-MPS in optional T.4 error correction mode" },
{ 0xFC, "PRI-EOP in optional T.4 error correction mode" },
{ 0, NULL }
};
static const value_string t30_minimum_scan_line_time_dcs_vals[] = {
{ 0x00, "20 ms" },
{ 0x01, "40 ms" },
{ 0x02, "10 ms" },
{ 0x04, "05 ms" },
{ 0x07, "00 ms" },
{ 0, NULL }
};
static const value_string t30_SharedDataMemory_capacity_vals[] = {
{ 0x00, "Not available" },
{ 0x01, "Level 1 = 1.0 Mbytes" },
{ 0x02, "Level 2 = 2.0 Mbytes" },
{ 0x03, "Level 3 = unlimited (i.e. >= 32 Mbytes)" },
{ 0, NULL }
};
static const true_false_string t30_octets_preferred_value = {
"64 octets preferred",
"256 octets preferred",
};
static const true_false_string t30_extension_ind_value = {
"information continues through the next octet",
"last octet",
};
static const true_false_string t30_compress_value = {
"Uncompressed mode",
"Compressed mode",
};
static const true_false_string t30_minimum_scan_value = {
"T15.4 = 1/2 T7.7",
"T15.4 = T7.7",
};
static const true_false_string t30_duplex_operation_value = {
"Duplex and half duplex operation",
"Half duplex operation only",
};
static const true_false_string t30_frame_size_dcs_value = {
"64 octets",
"256 octets",
};
static const true_false_string t30_res_type_sel_value = {
"inch based resolution",
"metric based resolution",
};
static guint8
reverse_byte(guint8 val)
{
return ( ((val & 0x80)>>7) | ((val & 0x40)>>5) |
((val & 0x20)>>3) | ((val & 0x10)>>1) |
((val & 0x08)<<1) | ((val & 0x04)<<3) |
((val & 0x02)<<5) | ((val & 0x01)<<7) );
}
#define LENGTH_T30_NUM 20
static gchar *
t30_get_string_numbers(wmem_allocator_t *pool, tvbuff_t *tvb, int offset, int len)
{
gchar buf[LENGTH_T30_NUM+1];
int i;
/* the length must be 20 bytes per T30 rec*/
if (len != LENGTH_T30_NUM)
return NULL;
for (i=0; i<LENGTH_T30_NUM; i++)
buf[LENGTH_T30_NUM-i-1] = reverse_byte(tvb_get_guint8(tvb, offset+i));
/* add end of string */
buf[LENGTH_T30_NUM] = '\0';
char *s = g_strstrip(buf);
return get_utf_8_string(pool, s, (int)strlen(s));
}
static void
dissect_t30_numbers(tvbuff_t *tvb, int offset, packet_info *pinfo, int len, proto_tree *tree, t38_packet_info* t38)
{
gchar *str_num;
str_num = t30_get_string_numbers(pinfo->pool, tvb, offset, len);
if (str_num) {
proto_tree_add_string(tree, hf_t30_fif_number, tvb, offset, LENGTH_T30_NUM, str_num);
col_append_fstr(pinfo->cinfo, COL_INFO, " - Number:%s", str_num);
if (t38)
snprintf(t38->desc, MAX_T38_DESC, "Num: %s", str_num);
}
else {
proto_tree_add_expert_format(tree, pinfo, &ei_t30_bad_length, tvb, offset, -1,
"MALFORMED OR SHORT PACKET: number of digits must be 20");
col_append_str(pinfo->cinfo, COL_INFO, " [MALFORMED OR SHORT PACKET: number of digits must be 20]" );
}
}
static void
dissect_t30_facsimile_coded_data(tvbuff_t *tvb, int offset, packet_info *pinfo, int len, proto_tree *tree, t38_packet_info* t38)
{
guint8 octet;
if (len < 2) {
proto_tree_add_expert_format(tree, pinfo, &ei_t30_bad_length, tvb,
offset, tvb_reported_length_remaining(tvb, offset), "T30 FCD length must be at least 2 bytes");
col_append_str(pinfo->cinfo, COL_INFO, " [MALFORMED OR SHORT PACKET]");
return;
}
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_uint(tree, hf_t30_t4_frame_num, tvb, offset, 1, reverse_byte(octet));
offset++;
col_append_fstr(pinfo->cinfo, COL_INFO, " - Frame num:%d", reverse_byte(octet));
if (t38)
snprintf(t38->desc, MAX_T38_DESC, "Frm num: %d", reverse_byte(octet));
proto_tree_add_item(tree, hf_t30_t4_data, tvb, offset, len-1, ENC_NA);
}
static void
dissect_t30_non_standard_cap(tvbuff_t *tvb, int offset, packet_info *pinfo, int len, proto_tree *tree)
{
if (len < 2) {
proto_tree_add_expert_format(tree, pinfo, &ei_t30_bad_length, tvb,
offset, tvb_reported_length_remaining(tvb, offset),"T30 NSC length must be at least 2 bytes");
col_append_str(pinfo->cinfo, COL_INFO, " [MALFORMED OR SHORT PACKET]");
return;
}
proto_tree_add_item(tree, hf_t30_fif_country_code, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_t30_fif_non_stand_bytes, tvb, offset, len-1, ENC_NA);
}
static void
dissect_t30_partial_page_signal(tvbuff_t *tvb, int offset, packet_info *pinfo, int len, proto_tree *tree, t38_packet_info* t38)
{
guint8 octet, page_count, block_count, frame_count;
if (len != 4) {
proto_tree_add_expert_format(tree, pinfo, &ei_t30_bad_length, tvb,
offset, tvb_reported_length_remaining(tvb, offset), "T30 PPS length must be 4 bytes");
col_append_str(pinfo->cinfo, COL_INFO, " [MALFORMED OR SHORT PACKET]");
return;
}
proto_tree_add_item(tree, hf_t30_partial_page_fcf2, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
octet = tvb_get_guint8(tvb, offset);
page_count = reverse_byte(octet);
proto_tree_add_uint(tree, hf_t30_partial_page_i1, tvb, offset, 1, page_count);
offset++;
octet = tvb_get_guint8(tvb, offset);
block_count = reverse_byte(octet);
proto_tree_add_uint(tree, hf_t30_partial_page_i2, tvb, offset, 1, block_count);
offset++;
octet = tvb_get_guint8(tvb, offset);
frame_count = reverse_byte(octet);
proto_tree_add_uint(tree, hf_t30_partial_page_i3, tvb, offset, 1, frame_count);
offset++;
col_append_fstr(pinfo->cinfo, COL_INFO, " - PC:%d BC:%d FC:%d", page_count, block_count, frame_count);
if (t38)
snprintf(t38->desc, MAX_T38_DESC,
"PC:%d BC:%d FC:%d", page_count, block_count, frame_count);
}
static void
dissect_t30_partial_page_request(tvbuff_t *tvb, int offset, packet_info *pinfo, int len, proto_tree *tree)
{
int start_offset;
int frame_count = 0;
int frame;
#define BUF_SIZE (10*1 + 90*2 + 156*3 + 256*2 + 1) /* 0..9 + 10..99 + 100..255 + 256*', ' + \0 */
gchar *buf = (gchar *)wmem_alloc(pinfo->pool, BUF_SIZE);
gchar *buf_top = buf;
if (len != 32) {
proto_tree_add_expert_format(tree, pinfo, &ei_t30_bad_length, tvb,
offset, tvb_reported_length_remaining(tvb, offset), "T30 PPR length must be 32 bytes");
col_append_str(pinfo->cinfo, COL_INFO, " [MALFORMED OR SHORT PACKET]");
return;
}
start_offset = offset;
for (frame=0; frame < 255; ) {
guint8 octet = tvb_get_guint8(tvb, offset);
guint8 bit = 1<<7;
for (;bit;) {
if (octet & bit) {
++frame_count;
DISSECTOR_ASSERT((buf_top-buf) < BUF_SIZE);
buf_top += snprintf(buf_top, BUF_SIZE - (gulong)(buf_top - buf), "%u, ", frame);
}
bit >>= 1;
++frame;
}
++offset;
}
proto_tree_add_uint(tree, hf_t30_partial_page_request_frame_count, tvb, offset, 1, frame_count);
if (buf_top > buf+1) {
buf_top[-2] = '\0';
proto_tree_add_string_format_value(tree, hf_t30_partial_page_request_frames, tvb, start_offset, offset - start_offset,
buf, "%s", buf);
}
col_append_fstr(pinfo->cinfo, COL_INFO, " - %d frames", frame_count);
}
static void
dissect_t30_dis_dtc(tvbuff_t *tvb, int offset, packet_info *pinfo, int len, proto_tree *tree, gboolean dis_dtc, t38_packet_info* t38)
{
guint8 octet;
if (len < 3) {
proto_tree_add_expert_format(tree, pinfo, &ei_t30_bad_length, tvb,
offset, tvb_reported_length_remaining(tvb, offset), "T30 DIS length must be at least 4 bytes");
col_append_str(pinfo->cinfo, COL_INFO, " [MALFORMED OR SHORT PACKET]");
return;
}
/* bits 1 to 8 */
proto_tree_add_item(tree, hf_t30_fif_sm, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_rtif, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_3gmn, tvb, offset, 1, ENC_NA);
if (dis_dtc) {
proto_tree_add_item(tree, hf_t30_fif_v8c, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_op, tvb, offset, 1, ENC_NA);
}
/* bits 9 to 16 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
if (dis_dtc)
proto_tree_add_item(tree, hf_t30_fif_rtfc, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_rfo, tvb, offset, 1, ENC_NA);
if (dis_dtc) {
proto_tree_add_item(tree, hf_t30_fif_dsr, tvb, offset, 1, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " - DSR:%s",
val_to_str_ext_const((octet&0x3C) >> 2, &t30_data_signalling_rate_vals_ext, "<unknown>"));
if (t38)
snprintf(t38->desc, MAX_T38_DESC,
"DSR:%s",
val_to_str_ext_const((octet&0x3C) >> 2, &t30_data_signalling_rate_vals_ext, "<unknown>"));
}
else {
proto_tree_add_item(tree, hf_t30_fif_dsr_dcs, tvb, offset, 1, ENC_BIG_ENDIAN);
col_append_fstr(pinfo->cinfo, COL_INFO, " - DSR:%s",
val_to_str_ext_const((octet&0x3C) >> 2, &t30_data_signalling_rate_dcs_vals_ext, "<unknown>"));
if (t38)
snprintf(t38->desc, MAX_T38_DESC,
"DSR:%s",
val_to_str_ext_const((octet&0x3C) >> 2, &t30_data_signalling_rate_dcs_vals_ext, "<unknown>"));
}
proto_tree_add_item(tree, hf_t30_fif_res, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_tdcc, tvb, offset, 1, ENC_NA);
/* bits 17 to 24 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
if (dis_dtc) {
proto_tree_add_item(tree, hf_t30_fif_rwc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_t30_fif_rlc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_t30_fif_msltcr, tvb, offset, 1, ENC_BIG_ENDIAN);
} else {
proto_tree_add_item(tree, hf_t30_fif_rw_dcs, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_t30_fif_rl_dcs, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_t30_fif_mslt_dcs, tvb, offset, 1, ENC_BIG_ENDIAN);
}
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 4) )
return; /* no extension */
/* bits 25 to 32 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_cm, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ecm, tvb, offset, 1, ENC_NA);
if (!dis_dtc)
proto_tree_add_item(tree, hf_t30_fif_fs_dcs, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_t6, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 5) )
return; /* no extension */
/* bits 33 to 40 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_fvc, tvb, offset, 1, ENC_NA);
if (dis_dtc) {
proto_tree_add_item(tree, hf_t30_fif_mspc, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ps, tvb, offset, 1, ENC_NA);
}
proto_tree_add_item(tree, hf_t30_fif_t43, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_pi, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_vc32k, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 6) )
return; /* no extension */
/* bits 41 to 48 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_r8x15, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_300x300, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_r16x15, tvb, offset, 1, ENC_NA);
if (dis_dtc) {
proto_tree_add_item(tree, hf_t30_fif_ibrp, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_mbrp, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_msltchr, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_sp, tvb, offset, 1, ENC_NA);
} else {
proto_tree_add_item(tree, hf_t30_fif_rts, tvb, offset, 1, ENC_NA);
}
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 7) )
return; /* no extension */
/* bits 49 to 56 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_sc, tvb, offset, 1, ENC_NA);
if (dis_dtc) {
proto_tree_add_item(tree, hf_t30_fif_passw, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_rttd, tvb, offset, 1, ENC_NA);
} else {
proto_tree_add_item(tree, hf_t30_fif_sit, tvb, offset, 1, ENC_NA);
}
proto_tree_add_item(tree, hf_t30_fif_bft, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_dtm, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_edi, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 8) )
return; /* no extension */
/* bits 57 to 64 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_btm, tvb, offset, 1, ENC_NA);
if (dis_dtc)
proto_tree_add_item(tree, hf_t30_fif_rttcmmd, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_chrm, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_mm, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 9) )
return; /* no extension */
/* bits 65 to 72 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_pm26, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_dnc, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_do, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_jpeg, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_fcm, tvb, offset, 1, ENC_NA);
if (!dis_dtc)
proto_tree_add_item(tree, hf_t30_fif_pht, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_12c, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 10) )
return; /* no extension */
/* bits 73 to 80 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_ns, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ci, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_cgr, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_nalet, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_naleg, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_spscb, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_spsco, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 11) )
return; /* no extension */
/* bits 81 to 88 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_hkm, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_rsa, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_oc, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_hfx40, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_acn2c, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_acn3c, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_hfx40i, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 12) )
return; /* no extension */
/* bits 89 to 96 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_ahsn2, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ahsn3, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_t441, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_t442, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_t443, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_plmss, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 13) )
return; /* no extension */
/* bits 97 to 104 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_cg300, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_100x100cg, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_spcbft, tvb, offset, 1, ENC_NA);
if (dis_dtc) {
proto_tree_add_item(tree, hf_t30_fif_ebft, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_isp, tvb, offset, 1, ENC_NA);
}
proto_tree_add_item(tree, hf_t30_fif_ira, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 14) )
return; /* no extension */
/* bits 105 to 112 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_600x600, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_1200x1200, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_300x600, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_400x800, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_600x1200, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_cg600x600, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_cg1200x1200, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) || (len < 15) )
return; /* no extension */
/* bits 113 to 120 */
offset += 1;
octet = tvb_get_guint8(tvb, offset);
proto_tree_add_item(tree, hf_t30_fif_dspcam, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_dspccm, tvb, offset, 1, ENC_NA);
if (dis_dtc)
proto_tree_add_item(tree, hf_t30_fif_bwmrcp, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_t45, tvb, offset, 1, ENC_NA);
proto_tree_add_item(tree, hf_t30_fif_sdmc, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_t30_fif_ext, tvb, offset, 1, ENC_NA);
if ( !(octet & 0x01) )
return; /* no extension */
}
static int
dissect_t30_hdlc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
int offset = 0;
proto_item *it;
proto_tree *tr;
proto_tree *tr_fif;
proto_item *it_fcf;
guint8 octet;
guint32 frag_len;
proto_item *item;
t38_packet_info *t38 = (t38_packet_info*)data;
if (tvb_reported_length_remaining(tvb, offset) < 3) {
proto_tree_add_expert_format(tree, pinfo, &ei_t30_bad_length, tvb,
offset, tvb_reported_length_remaining(tvb, offset), "T30 length must be at least 4 bytes");
col_append_str(pinfo->cinfo, COL_INFO, " (HDLC Reassembled: [MALFORMED OR SHORT PACKET])");
return offset;
}
col_append_str(pinfo->cinfo, COL_INFO, " (HDLC Reassembled:");
it=proto_tree_add_protocol_format(tree, proto_t30, tvb, offset, -1,
"ITU-T Recommendation T.30");
tr=proto_item_add_subtree(it, ett_t30);
octet = tvb_get_guint8(tvb, offset);
item = proto_tree_add_item(tr, hf_t30_Address, tvb, offset, 1, ENC_BIG_ENDIAN);
if (octet != 0xFF)
expert_add_info(pinfo, item, &ei_t30_Address_FF);
offset += 1;
octet = tvb_get_guint8(tvb, offset);
item = proto_tree_add_item(tr, hf_t30_Control, tvb, offset, 1, ENC_BIG_ENDIAN);
if ((octet != 0xC0) && (octet != 0xC8))
expert_add_info(pinfo, item, &ei_t30_Control_C0C8);
offset += 1;
octet = tvb_get_guint8(tvb, offset);
it_fcf = proto_tree_add_item(tr, hf_t30_Facsimile_Control, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
tr_fif = proto_item_add_subtree(it_fcf, ett_t30_fif);
frag_len = tvb_reported_length_remaining(tvb, offset);
if (t38)
t38->t30_Facsimile_Control = octet;
col_append_fstr(pinfo->cinfo, COL_INFO,
" %s - %s",
val_to_str_ext_const(octet & 0x7F, &t30_facsimile_control_field_vals_short_ext, "<unknown>"),
val_to_str_ext_const(octet & 0x7F, &t30_facsimile_control_field_vals_ext, "<unknown>") );
/*
The T.30 spec has three groups of codes: 0000 XXXX, 1000 XXXX and X.......
bitmask here.
*/
switch (octet) {
case T30_FC_DTC:
dissect_t30_dis_dtc(tvb, offset, pinfo, frag_len, tr_fif, TRUE, t38);
break;
case T30_FC_CIG:
case T30_FC_PWD:
case T30_FC_SEP:
case T30_FC_PSA:
dissect_t30_numbers(tvb, offset, pinfo, frag_len, tr_fif, t38);
break;
case T30_FC_NSC:
dissect_t30_non_standard_cap(tvb, offset, pinfo, frag_len, tr_fif);
break;
default:
switch (octet & 0x7F) {
case T30_FC_DIS:
dissect_t30_dis_dtc(tvb, offset, pinfo, frag_len, tr_fif, TRUE, t38);
break;
case T30_FC_DCS:
dissect_t30_dis_dtc(tvb, offset, pinfo, frag_len, tr_fif, FALSE, t38);
break;
case T30_FC_CSI:
case T30_FC_TSI:
case T30_FC_SUB:
case T30_FC_SID:
dissect_t30_numbers(tvb, offset, pinfo, frag_len, tr_fif, t38);
break;
case T30_FC_NSF:
case T30_FC_NSS:
dissect_t30_non_standard_cap(tvb, offset, pinfo, frag_len, tr_fif);
break;
case T30_FC_FCD:
dissect_t30_facsimile_coded_data(tvb, offset, pinfo, frag_len, tr_fif, t38);
break;
case T30_FC_PPS:
dissect_t30_partial_page_signal(tvb, offset, pinfo, frag_len, tr_fif, t38);
break;
case T30_FC_PPR:
dissect_t30_partial_page_request(tvb, offset, pinfo, frag_len, tr_fif);
break;
}
}
col_append_str(pinfo->cinfo, COL_INFO, ")");
return offset;
}
/* Wireshark Protocol Registration */
void
proto_register_t30(void)
{
static hf_register_info hf_t30[] =
{
{ &hf_t30_Address,
{ "Address", "t30.Address", FT_UINT8, BASE_HEX,
NULL, 0, "Address Field", HFILL }},
{ &hf_t30_Control,
{ "Control", "t30.Control", FT_UINT8, BASE_HEX,
VALS(t30_control_vals), 0, "Control Field", HFILL }},
{ &hf_t30_Facsimile_Control,
{ "Facsimile Control", "t30.FacsimileControl", FT_UINT8, BASE_DEC | BASE_EXT_STRING,
&t30_facsimile_control_field_vals_ext, 0x7F, NULL, HFILL }},
{ &hf_t30_fif_sm,
{ "Store and forward Internet fax- Simple mode (ITU-T T.37)", "t30.fif.sm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_rtif,
{ "Real-time Internet fax (ITU T T.38)", "t30.fif.rtif", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_3gmn,
{ "3rd Generation Mobile Network", "t30.fif.3gmn", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_v8c,
{ "V.8 capabilities", "t30.fif.v8c", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_op,
{ "Octets preferred", "t30.fif.op", FT_BOOLEAN, 8,
TFS(&t30_octets_preferred_value), 0x02, NULL, HFILL }},
{ &hf_t30_fif_rtfc,
{ "Ready to transmit a facsimile document (polling)", "t30.fif.rtfc", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_rfo,
{ "Receiver fax operation", "t30.fif.rfo", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_dsr,
{ "Data signalling rate", "t30.fif.dsr", FT_UINT8, BASE_HEX | BASE_EXT_STRING,
&t30_data_signalling_rate_vals_ext, 0x3C, NULL, HFILL }},
{ &hf_t30_fif_dsr_dcs,
{ "Data signalling rate", "t30.fif.dsr_dcs", FT_UINT8, BASE_HEX | BASE_EXT_STRING,
&t30_data_signalling_rate_dcs_vals_ext, 0x3C, NULL, HFILL }},
{ &hf_t30_fif_res,
{ "R8x7.7 lines/mm and/or 200x200 pels/25.4 mm", "t30.fif.res", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_tdcc,
{ "Two dimensional coding capability", "t30.fif.tdcc", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x01, NULL, HFILL }},
{ &hf_t30_fif_rwc,
{ "Recording width capabilities", "t30.fif.rwc", FT_UINT8, BASE_HEX,
VALS(t30_recording_width_capabilities_vals), 0xC0, NULL, HFILL }},
{ &hf_t30_fif_rw_dcs,
{ "Recording width", "t30.fif.rw_dcs", FT_UINT8, BASE_HEX,
VALS(t30_recording_width_dcs_vals), 0xC0, NULL, HFILL }},
{ &hf_t30_fif_rlc,
{ "Recording length capability", "t30.fif.rlc", FT_UINT8, BASE_HEX,
VALS(t30_recording_length_capability_vals), 0x30, NULL, HFILL }},
{ &hf_t30_fif_rl_dcs,
{ "Recording length capability", "t30.fif.rl_dcs", FT_UINT8, BASE_HEX,
VALS(t30_recording_length_dcs_vals), 0x30, NULL, HFILL }},
{ &hf_t30_fif_msltcr,
{ "Minimum scan line time capability at the receiver", "t30.fif.msltcr", FT_UINT8, BASE_HEX,
VALS(t30_minimum_scan_line_time_rec_vals), 0x0E, NULL, HFILL }},
{ &hf_t30_fif_mslt_dcs,
{ "Minimum scan line time", "t30.fif.mslt_dcs", FT_UINT8, BASE_HEX,
VALS(t30_minimum_scan_line_time_dcs_vals), 0x0E, NULL, HFILL }},
{ &hf_t30_fif_ext,
{ "Extension indicator", "t30.fif.ext", FT_BOOLEAN, 8,
TFS(&t30_extension_ind_value), 0x01, NULL, HFILL }},
{ &hf_t30_fif_cm,
{ "Compress/Uncompress mode", "t30.fif.cm", FT_BOOLEAN, 8,
TFS(&t30_compress_value), 0x40, NULL, HFILL }},
{ &hf_t30_fif_ecm,
{ "Error correction mode", "t30.fif.ecm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_fs_dcs,
{ "Frame size", "t30.fif.fs_dcm", FT_BOOLEAN, 8,
TFS(&t30_frame_size_dcs_value), 0x10, NULL, HFILL }},
{ &hf_t30_fif_t6,
{ "T.6 coding capability", "t30.fif.t6", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_fvc,
{ "Field valid capability", "t30.fif.fvc", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_mspc,
{ "Multiple selective polling capability", "t30.fif.mspc", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_ps,
{ "Polled Subaddress", "t30.fif.ps", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_t43,
{ "T.43 coding", "t30.fif.t43", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_pi,
{ "Plane interleave", "t30.fif.pi", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_vc32k,
{ "Voice coding with 32k ADPCM (ITU T G.726)", "t30.fif.vc32k", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_r8x15,
{ "R8x15.4 lines/mm", "t30.fif.r8x15", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_300x300,
{ "300x300 pels/25.4 mm", "t30.fif.300x300", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_r16x15,
{ "R16x15.4 lines/mm and/or 400x400 pels/25.4 mm", "t30.fif.r16x15", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_ibrp,
{ "Inch based resolution preferred", "t30.fif.ibrp", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_mbrp,
{ "Metric based resolution preferred", "t30.fif.mbrp", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_msltchr,
{ "Minimum scan line time capability for higher resolutions", "t30.fif.msltchr", FT_BOOLEAN, 8,
TFS(&t30_minimum_scan_value), 0x04, NULL, HFILL }},
{ &hf_t30_fif_rts,
{ "Resolution type selection", "t30.fif.rts", FT_BOOLEAN, 8,
TFS(&t30_res_type_sel_value), 0x10, NULL, HFILL }},
{ &hf_t30_fif_sp,
{ "Selective polling", "t30.fif.sp", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_sc,
{ "Subaddressing capability", "t30.fif.sc", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_passw,
{ "Password", "t30.fif.passw", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_sit,
{ "Sender Identification transmission", "t30.fif.sit", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_rttd,
{ "Ready to transmit a data file (polling)", "t30.fif.rttd", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_bft,
{ "Binary File Transfer (BFT)", "t30.fif.bft", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_dtm,
{ "Document Transfer Mode (DTM)", "t30.fif.dtm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_edi,
{ "Electronic Data Interchange (EDI)", "t30.fif.edi", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_btm,
{ "Basic Transfer Mode (BTM)", "t30.fif.btm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_rttcmmd,
{ "Ready to transmit a character or mixed mode document (polling)", "t30.fif.rttcmmd", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_chrm,
{ "Character mode", "t30.fif.chrm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_mm,
{ "Mixed mode (Annex E/T.4)", "t30.fif.mm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_pm26,
{ "Processable mode 26 (ITU T T.505)", "t30.fif.pm26", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_dnc,
{ "Digital network capability", "t30.fif.dnc", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_do,
{ "Duplex operation", "t30.fif.do", FT_BOOLEAN, 8,
TFS(&t30_duplex_operation_value), 0x20, NULL, HFILL }},
{ &hf_t30_fif_jpeg,
{ "JPEG coding", "t30.fif.jpeg", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_fcm,
{ "Full colour mode", "t30.fif.fcm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_pht,
{ "Preferred Huffman tables", "t30.fif.pht", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_12c,
{ "12 bits/pel component", "t30.fif.12c", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_ns,
{ "No subsampling (1:1:1)", "t30.fif.ns", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_ci,
{ "Custom illuminant", "t30.fif.ci", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_cgr,
{ "Custom gamut range", "t30.fif.cgr", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_nalet,
{ "North American Letter (215.9 x 279.4 mm) capability", "t30.fif.nalet", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_naleg,
{ "North American Legal (215.9 x 355.6 mm) capability", "t30.fif.naleg", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_spscb,
{ "Single-progression sequential coding (ITU-T T.85) basic capability", "t30.fif.spscb", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_spsco,
{ "Single-progression sequential coding (ITU-T T.85) optional L0 capability", "t30.fif.spsco", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_hkm,
{ "HKM key management capability", "t30.fif.hkm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_rsa,
{ "RSA key management capability", "t30.fif.rsa", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_oc,
{ "Override capability", "t30.fif.oc", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_hfx40,
{ "HFX40 cipher capability", "t30.fif.hfx40", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_acn2c,
{ "Alternative cipher number 2 capability", "t30.fif.acn2c", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_acn3c,
{ "Alternative cipher number 3 capability", "t30.fif.acn3c", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_hfx40i,
{ "HFX40-I hashing capability", "t30.fif.hfx40i", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_ahsn2,
{ "Alternative hashing system number 2 capability", "t30.fif.ahsn2", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_ahsn3,
{ "Alternative hashing system number 3 capability", "t30.fif.ahsn3", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_t441,
{ "T.44 (Mixed Raster Content)", "t30.fif.t441", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_t442,
{ "T.44 (Mixed Raster Content)", "t30.fif.t442", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_t443,
{ "T.44 (Mixed Raster Content)", "t30.fif.t443", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_plmss,
{ "Page length maximum strip size for T.44 (Mixed Raster Content)", "t30.fif.plmss", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_cg300,
{ "Colour/gray-scale 300 pels/25.4 mm x 300 lines/25.4 mm or 400 pels/25.4 mm x 400 lines/25.4 mm resolution", "t30.fif.cg300", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_100x100cg,
{ "100 pels/25.4 mm x 100 lines/25.4 mm for colour/gray scale", "t30.fif.100x100cg", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_spcbft,
{ "Simple Phase C BFT Negotiations capability", "t30.fif.spcbft", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_ebft,
{ "Extended BFT Negotiations capability", "t30.fif.ebft", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_isp,
{ "Internet Selective Polling Address (ISP)", "t30.fif.isp", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_ira,
{ "Internet Routing Address (IRA)", "t30.fif.ira", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_600x600,
{ "600 pels/25.4 mm x 600 lines/25.4 mm", "t30.fif.600x600", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_1200x1200,
{ "1200 pels/25.4 mm x 1200 lines/25.4 mm", "t30.fif.1200x1200", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_300x600,
{ "300 pels/25.4 mm x 600 lines/25.4 mm", "t30.fif.300x600", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_400x800,
{ "400 pels/25.4 mm x 800 lines/25.4 mm", "t30.fif.400x800", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_600x1200,
{ "600 pels/25.4 mm x 1200 lines/25.4 mm", "t30.fif.600x1200", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x08, NULL, HFILL }},
{ &hf_t30_fif_cg600x600,
{ "Colour/gray scale 600 pels/25.4 mm x 600 lines/25.4 mm resolution", "t30.fif.cg600x600", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x04, NULL, HFILL }},
{ &hf_t30_fif_cg1200x1200,
{ "Colour/gray scale 1200 pels/25.4 mm x 1200 lines/25.4 mm resolution", "t30.fif.cg1200x1200", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x02, NULL, HFILL }},
{ &hf_t30_fif_dspcam,
{ "Double sided printing capability (alternate mode)", "t30.fif.dspcam", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x80, NULL, HFILL }},
{ &hf_t30_fif_dspccm,
{ "Double sided printing capability (continuous mode)", "t30.fif.dspccm", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x40, NULL, HFILL }},
{ &hf_t30_fif_bwmrcp,
{ "Black and white mixed raster content profile (MRCbw)", "t30.fif.bwmrcp", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x20, NULL, HFILL }},
{ &hf_t30_fif_t45,
{ "T.45 (run length colour encoding)", "t30.fif.t45", FT_BOOLEAN, 8,
TFS(&tfs_set_notset), 0x10, NULL, HFILL }},
{ &hf_t30_fif_sdmc,
{ "SharedDataMemory capacity", "t30.fif.sdmc", FT_UINT8, BASE_HEX,
VALS(t30_SharedDataMemory_capacity_vals), 0x0C, NULL, HFILL }},
{ &hf_t30_fif_number,
{ "Number", "t30.fif.number", FT_STRING, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
{ &hf_t30_fif_country_code,
{ "ITU-T Country code", "t30.fif.country_code", FT_UINT8, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_t30_fif_non_stand_bytes,
{ "Non-standard capabilities", "t30.fif.non_standard_cap", FT_BYTES, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_t30_t4_frame_num,
{ "T.4 Frame number", "t30.t4.frame_num", FT_UINT8, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_t30_t4_data,
{ "T.4 Facsimile data field", "t30.t4.data", FT_BYTES, BASE_NONE,
NULL, 0, NULL, HFILL }},
{ &hf_t30_partial_page_fcf2,
{ "Post-message command", "t30.pps.fcf2", FT_UINT8, BASE_DEC,
VALS(t30_partial_page_fcf2_vals), 0, NULL, HFILL }},
{ &hf_t30_partial_page_i1,
{ "Page counter", "t30.t4.page_count", FT_UINT8, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_t30_partial_page_i2,
{ "Block counter", "t30.t4.block_count", FT_UINT8, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_t30_partial_page_i3,
{ "Frame counter", "t30.t4.frame_count", FT_UINT8, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_t30_partial_page_request_frame_count,
{ "Frame counter", "t30.ppr.frame_count", FT_UINT8, BASE_DEC,
NULL, 0, NULL, HFILL }},
{ &hf_t30_partial_page_request_frames,
{ "Frames", "t30.ppr.frames", FT_STRING, BASE_NONE,
NULL, 0x0, NULL, HFILL }},
};
static gint *t30_ett[] =
{
&ett_t30,
&ett_t30_fif,
};
static ei_register_info ei[] = {
{ &ei_t30_bad_length, { "t30.bad_length", PI_MALFORMED, PI_ERROR, "Bad length", EXPFILL }},
{ &ei_t30_Address_FF, { "t30.Address.FF", PI_REASSEMBLE, PI_WARN, "T30 Address must be 0xFF", EXPFILL }},
{ &ei_t30_Control_C0C8, { "t30.Control.C0C8", PI_REASSEMBLE, PI_WARN, "T30 Control Field must be 0xC0 or 0xC8", EXPFILL }},
};
expert_module_t* expert_t30;
/* T30 */
proto_t30 = proto_register_protocol("T.30", "T.30", "t30");
proto_register_field_array(proto_t30, hf_t30, array_length(hf_t30));
proto_register_subtree_array(t30_ett, array_length(t30_ett));
expert_t30 = expert_register_protocol(proto_t30);
expert_register_field_array(expert_t30, ei, array_length(ei));
register_dissector("t30.hdlc", dissect_t30_hdlc, proto_t30);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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