nexmon – Rev 1
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/* packet-osi-options.c
* Routines for the decode of ISO/OSI option part
* Covers:
* ISO 8473 CLNP (ConnectionLess Mode Network Service Protocol)
* ISO 10589 ISIS (Intradomain Routing Information Exchange Protocol)
* ISO 9542 ESIS (End System To Intermediate System Routing Exchange Protocol)
*
* Ralf Schneider <Ralf.Schneider@t-online.de>
*
* 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.
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/expert.h>
#include "packet-osi.h"
#include "packet-osi-options.h"
/* ATN traffic types (ICAO doc 9705 Edition3 SV5 5.6.2.2.6.7.3) */
#define ATN_TT_ATSC_NO_PREFERENCE 0x01
#define ATN_TT_ATSC_CLASS_A 0x10
#define ATN_TT_ATSC_CLASS_B 0x11
#define ATN_TT_ATSC_CLASS_C 0x12
#define ATN_TT_ATSC_CLASS_D 0x13
#define ATN_TT_ATSC_CLASS_E 0x14
#define ATN_TT_ATSC_CLASS_F 0x15
#define ATN_TT_ATSC_CLASS_G 0x16
#define ATN_TT_ATSC_CLASS_H 0x17
#define ATN_TT_AOC_NO_PREFERENCE 0x21
#define ATN_TT_AOC_G 0x22
#define ATN_TT_AOC_V 0x23
#define ATN_TT_AOC_S 0x24
#define ATN_TT_AOC_H 0x25
#define ATN_TT_AOC_M 0x26
#define ATN_TT_AOC_G_V 0x27
#define ATN_TT_AOC_G_V_S 0x28
#define ATN_TT_AOC_G_V_H_S 0x29
#define ATN_TT_ADM_NO_PREFERENCE 0x30
#define ATN_TT_SYS_MGMT_NO_PREFERENCE 0x60
/* ATN security classification (ICAO doc 9705 Edition3 SV5 5.6.2.2.6.8.3) */
#define ATN_SC_UNCLASSIFIED 0x01
#define ATN_SC_RESTRICTED 0x02
#define ATN_SC_CONFIDENTIAL 0x03
#define ATN_SC_SECRET 0x04
#define ATN_SC_TOP_SECRET 0x05
/* ATN security label records */
#define OSI_OPT_SECURITY_ATN_SR 0xc0
#define OSI_OPT_SECURITY_ATN_TT 0x0f
#define OSI_OPT_SECURITY_ATN_SC 0x03
#define OSI_OPT_SECURITY_ATN_SR_LEN 6
#define OSI_OPT_SECURITY_ATN_TT_LEN 1
#define OSI_OPT_SECURITY_ATN_SC_LEN 1
#define OSI_OPT_SECURITY_ATN_SI_MAX_LEN 8
#define OSI_OPT_SECURITY 0xc5
#define OSI_OPT_QOS_MAINTANANCE 0xc3
#define OSI_OPT_PRIORITY 0xcd
#define OSI_OPT_ADDRESS_MASK 0xe1
#define OSI_OPT_SNPA_MASK 0xe2
#define OSI_OPT_ES_CONFIG_TIMER 0xc6
#define OSI_OPT_MAX_PRIORITY 0x0e
#define OSI_OPT_PADDING 0xcc
#define OSI_OPT_SOURCE_ROUTING 0xc8
#define OSI_OPT_RECORD_OF_ROUTE 0xcb
#define OSI_OPT_REASON_OF_DISCARD 0xc1
#define OSI_OPT_SEC_MASK 0xc0
#define OSI_OPT_SEC_RESERVED 0x00
#define OSI_OPT_SEC_SRC_ADR_SPEC 0x01
#define OSI_OPT_SEC_DST_ADR_SPEC 0x02
#define OSI_OPT_SEC_GLOBAL_UNIQUE 0x03
#define OSI_OPT_QOS_MASK 0xc0
#define OSI_OPT_QOS_RESERVED 0x00
#define OSI_OPT_QOS_SRC_ADR_SPEC 0x01
#define OSI_OPT_QOS_DST_ADR_SPEC 0x02
#define OSI_OPT_QOS_GLOBAL_UNIQUE 0x03
#define OSI_OPT_QOS_SUB_MASK 0x3f
#define OSI_OPT_QOS_SUB_RSVD 0x20
#define OSI_OPT_QOS_SUB_SEQ_VS_TRS 0x10
#define OSI_OPT_QOS_SUB_CONG_EXPED 0x08
#define OSI_OPT_QOS_SUB_TSD_VS_COST 0x04
#define OSI_OPT_QOS_SUB_RESERR_TRS 0x02
#define OSI_OPT_QOS_SUB_RESERR_COST 0x01
#define OSI_OPT_RFD_GENERAL 0x00
#define OSI_OPT_RFD_ADDRESS 0x08
#define OSI_OPT_RFD_SOURCE_ROUTING 0x09
#define OSI_OPT_RFD_LIFETIME 0x0a
#define OSI_OPT_RFD_PDU_DISCARDED 0x0b
#define OSI_OPT_RFD_REASSEMBLY 0x0c
#define OSI_OPT_RFD_MASK 0xf0
#define OSI_OPT_RFD_SUB_MASK 0x0f
extern gboolean clnp_decode_atn_options; /* as defined in packet-clnp.c */
extern int hf_clnp_atntt; /* as defined in packet-clnp.c */
extern int hf_clnp_atnsc; /* as defined in packet-clnp.c */
/* Generated from convert_proto_tree_add_text.pl */
static int hf_osi_options_address_mask = -1;
static int hf_osi_options_transit_delay_vs_cost = -1;
static int hf_osi_options_rtd_general = -1;
static int hf_osi_options_residual_error_prob_vs_transit_delay = -1;
static int hf_osi_options_qos_sequencing_vs_transit_delay = -1;
static int hf_osi_options_rtd_address = -1;
static int hf_osi_options_congestion_experienced = -1;
static int hf_osi_options_esct = -1;
static int hf_osi_options_rtd_reassembly = -1;
static int hf_osi_options_qos_maintenance = -1;
static int hf_osi_options_security_type = -1;
static int hf_osi_options_route_recording = -1;
static int hf_osi_options_last_hop = -1;
static int hf_osi_options_route = -1;
static int hf_osi_options_rtd_lifetime = -1;
static int hf_osi_options_rtd_source_routing = -1;
static int hf_osi_options_padding = -1;
static int hf_osi_options_rfd_error_class = -1;
static int hf_osi_options_snpa_mask = -1;
static int hf_osi_options_source_routing = -1;
static int hf_osi_options_priority = -1;
static int hf_osi_options_qos_reserved = -1;
static int hf_osi_options_residual_error_prob_vs_cost = -1;
static int hf_osi_options_rtd_pdu_discarded = -1;
static int hf_osi_options_rfd_field = -1;
static gint ott_osi_options = -1;
static gint ott_osi_qos = -1;
static gint ott_osi_route = -1;
static gint ott_osi_redirect = -1;
static expert_field ei_osi_options_none = EI_INIT;
static expert_field ei_osi_options_rfd_error_class = EI_INIT;
static const guchar atn_security_registration_val[] = {
0x06, 0x04, 0x2b, 0x1b, 0x00, 0x00
}; /* =iso(1).org(3).ICAO(27).ATN(0).TrafficType(0)*/
static const value_string osi_opt_sec_atn_sr_vals[] = {
{OSI_OPT_SECURITY_ATN_SR, "ATN Security Label"},
{0, NULL}
};
static const value_string osi_opt_sec_atn_si_vals[] = {
{OSI_OPT_SECURITY_ATN_TT, "Traffic Type and Routing"},
{OSI_OPT_SECURITY_ATN_SC, "Security classification"},
{0, NULL}
};
static const value_string osi_opt_sec_atn_tt_vals[] = {
{ATN_TT_ATSC_NO_PREFERENCE, "ATSC No preference"},
{ATN_TT_ATSC_CLASS_A, "ATSC Class A"},
{ATN_TT_ATSC_CLASS_B, "ATSC Class B"},
{ATN_TT_ATSC_CLASS_C, "ATSC Class C"},
{ATN_TT_ATSC_CLASS_D, "ATSC Class D"},
{ATN_TT_ATSC_CLASS_E, "ATSC Class E"},
{ATN_TT_ATSC_CLASS_F, "ATSC Class F"},
{ATN_TT_ATSC_CLASS_G, "ATSC Class G"},
{ATN_TT_ATSC_CLASS_H, "ATSC Class H"},
{ATN_TT_AOC_NO_PREFERENCE, "AOC No preference"},
{ATN_TT_AOC_G, "AOC Gatelink only"},
{ATN_TT_AOC_V, "AOC VHF only"},
{ATN_TT_AOC_S, "AOC Satellite only"},
{ATN_TT_AOC_H, "AOC HF only"},
{ATN_TT_AOC_M, "AOC Mode S only"},
{ATN_TT_AOC_G_V, "AOC Gatelink first, then VHF"},
{ATN_TT_AOC_G_V_S, "AOC Gatelink first, then VHF, then Satellite"},
{ATN_TT_AOC_G_V_H_S, "AOC Gatelink first, then VHF, then HF, then Satellite"},
{ATN_TT_ADM_NO_PREFERENCE, "ATN Administrative No preference"},
{ATN_TT_SYS_MGMT_NO_PREFERENCE, "ATN Systems Management No preference"},
{0, NULL}
};
static const value_string osi_opt_sec_atn_sc_vals[] = {
{ATN_SC_UNCLASSIFIED, "unclassified"},
{ATN_SC_RESTRICTED, "restricted"},
{ATN_SC_CONFIDENTIAL, "confidential"},
{ATN_SC_SECRET, "secret"},
{ATN_SC_TOP_SECRET, "top secret"},
{0, NULL}
};
static const value_string osi_opt_sec_vals[] = {
{OSI_OPT_SEC_RESERVED, "Reserved"},
{OSI_OPT_SEC_SRC_ADR_SPEC, "Source Address Specific"},
{OSI_OPT_SEC_DST_ADR_SPEC, "Destination Address Specific"},
{OSI_OPT_SEC_GLOBAL_UNIQUE, "Globally Unique"},
{0, NULL}
};
static const value_string osi_opt_qos_vals[] = {
{OSI_OPT_QOS_RESERVED, "Reserved"},
{OSI_OPT_QOS_SRC_ADR_SPEC, "Source Address Specific"},
{OSI_OPT_QOS_DST_ADR_SPEC, "Destination Address Specific"},
{OSI_OPT_QOS_GLOBAL_UNIQUE, "Globally Unique"},
{0, NULL}
};
static const value_string osi_opt_rfd_error_class[] = {
{OSI_OPT_RFD_GENERAL, "General"},
{OSI_OPT_RFD_ADDRESS, "Address"},
{OSI_OPT_RFD_SOURCE_ROUTING, "Source Routing"},
{OSI_OPT_RFD_LIFETIME, "Lifetime"},
{OSI_OPT_RFD_PDU_DISCARDED, "PDU discarded"},
{OSI_OPT_RFD_REASSEMBLY, "Reassembly"},
{0, NULL}
};
static const value_string osi_opt_rfd_general[] = {
{0x00, "Reason not specified"},
{0x01, "Protocol procedure error"},
{0x02, "Incorrect checksum"},
{0x03, "PDU discarded due to congestion"},
{0x04, "Header syntax error ( cannot be parsed )"},
{0x05, "Segmentation needed but not permitted"},
{0x06, "Incomplete PDU received"},
{0x07, "Duplicate option"},
{0, NULL}
};
static const value_string osi_opt_rfd_address[] = {
{0x00, "Destination Address unreachable"},
{0x01, "Destination Address unknown"},
{0, NULL}
};
static const value_string osi_opt_rfd_src_route[] = {
{0x00, "Unspecified source routing error"},
{0x01, "Syntax error in source routing field"},
{0x02, "Unknown address in source routing field"},
{0x03, "Path not acceptable"},
{0, NULL}
};
static const value_string osi_opt_rfd_lifetime[] = {
{0x00, "Lifetime expired while data unit in transit"},
{0x01, "Lifetime expired during reassembly"},
{0, NULL}
};
static const value_string osi_opt_rfd_discarded[] = {
{0x00, "Unsupported option not specified"},
{0x01, "Unsupported protocol version"},
{0x02, "Unsupported security option"},
{0x03, "Unsupported source routing option"},
{0x04, "Unsupported recording of route option"},
{0, NULL}
};
static const value_string osi_opt_rfd_reassembly[] = {
{0x00, "Reassembly interference"},
{0, NULL} };
static void
dissect_option_qos(const guint8 qos, proto_tree *tree, tvbuff_t *tvb, int offset)
{
proto_item *ti;
proto_tree *osi_qos_tree;
ti = proto_tree_add_item(tree, hf_osi_options_qos_maintenance, tvb, offset, 1, ENC_BIG_ENDIAN);
osi_qos_tree = proto_item_add_subtree(ti, ott_osi_qos);
if ( ((qos & OSI_OPT_QOS_MASK) >> 6) == OSI_OPT_QOS_GLOBAL_UNIQUE) { /* Analye BIT field to get all Values */
proto_tree_add_item(osi_qos_tree, hf_osi_options_qos_reserved, tvb, offset, 1, ENC_NA);
proto_tree_add_item(osi_qos_tree, hf_osi_options_qos_sequencing_vs_transit_delay, tvb, offset, 1, ENC_NA);
proto_tree_add_item(osi_qos_tree, hf_osi_options_congestion_experienced, tvb, offset, 1, ENC_NA);
proto_tree_add_item(osi_qos_tree, hf_osi_options_transit_delay_vs_cost, tvb, offset, 1, ENC_NA);
proto_tree_add_item(osi_qos_tree, hf_osi_options_residual_error_prob_vs_transit_delay, tvb, offset, 1, ENC_NA);
proto_tree_add_item(osi_qos_tree, hf_osi_options_residual_error_prob_vs_cost, tvb, offset, 1, ENC_NA);
}
}
static void
dissect_option_route(guchar parm_type, int offset, guchar parm_len,
tvbuff_t *tvb, proto_tree *tree )
{
guchar next_hop = 0;
guint16 this_hop = 0;
guchar netl = 0;
guchar last_hop = 0;
guchar cnt_hops = 0;
guchar crr = 0;
gchar* str;
proto_tree *osi_route_tree = NULL;
if ( parm_type == OSI_OPT_SOURCE_ROUTING ) {
next_hop = tvb_get_guint8(tvb, offset + 1);
netl = tvb_get_guint8(tvb, next_hop + 2);
this_hop = offset + 2; /* points to first netl */
proto_tree_add_uint_format_value(tree, hf_osi_options_source_routing, tvb, offset + next_hop, netl,
tvb_get_guint8(tvb, offset), "%s ( Next Hop Highlighted In Data Buffer )",
(tvb_get_guint8(tvb, offset) == 0) ? "Partial Source Routing" :
"Complete Source Routing");
}
else if ( parm_type == OSI_OPT_RECORD_OF_ROUTE ) {
crr = tvb_get_guint8(tvb, offset);
last_hop = tvb_get_guint8(tvb, offset + 1);
osi_route_tree = proto_tree_add_subtree(tree, tvb, offset, parm_len, ott_osi_route, NULL,
(crr == 0) ? "Partial Route Recording" : "Complete Route Recording");
/* Complete Route Recording or Partial Route Recording */
proto_tree_add_uint_format_value(tree, hf_osi_options_route_recording, tvb, offset, 1, crr, "%s ",
(crr == 0) ? "Partial Route Recording" :
"Complete Route Recording");
/* "last_hop" is either :
* 0x03 : special value for no NET recorded yet.
* 0xFF : special value telling there is no more place
in the Route Recording Allocated Length and
therefore next NETs won't be recorded.
* Other value : Total length of recorded NETs so far.
*/
if ( last_hop == 0x03 )
proto_tree_add_uint_format(osi_route_tree, hf_osi_options_last_hop, tvb, offset + 1, 1, last_hop,
"No Network Entity Titles Recorded Yet");
if ( last_hop == 0xFF )
proto_tree_add_uint_format(osi_route_tree, hf_osi_options_last_hop, tvb, offset + 1, 1, last_hop,
"Recording Terminated : No more space !");
if ( last_hop == 255 || last_hop == 0x03 )
this_hop = parm_len + 1; /* recording terminated,
* or not begun, nothing to show */
else
this_hop = offset + 2; /* points to first netl */
}
while ( this_hop < offset + last_hop -2 ) { /* -2 for crr and last_hop */
netl = tvb_get_guint8(tvb, this_hop);
str = print_nsap_net(tvb, this_hop + 1, netl);
proto_tree_add_string_format(osi_route_tree, hf_osi_options_route, tvb, this_hop, netl + 1, str,
"Hop #%3u NETL: %2u, NET: %s", cnt_hops++, netl, str);
this_hop += 1 + netl;
}
}
static void
dissect_option_rfd(const guchar error, const guchar field, int offset,
guchar len _U_, tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo )
{
proto_item *ti;
ti = proto_tree_add_item(tree, hf_osi_options_rfd_error_class, tvb, offset, 1, ENC_BIG_ENDIAN);
switch ((error & OSI_OPT_RFD_MASK) >> 4)
{
case OSI_OPT_RFD_GENERAL:
proto_tree_add_item(tree, hf_osi_options_rtd_general, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case OSI_OPT_RFD_ADDRESS:
proto_tree_add_item(tree, hf_osi_options_rtd_address, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case OSI_OPT_RFD_SOURCE_ROUTING:
proto_tree_add_item(tree, hf_osi_options_rtd_source_routing, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case OSI_OPT_RFD_LIFETIME:
proto_tree_add_item(tree, hf_osi_options_rtd_lifetime, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case OSI_OPT_RFD_PDU_DISCARDED:
proto_tree_add_item(tree, hf_osi_options_rtd_pdu_discarded, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
case OSI_OPT_RFD_REASSEMBLY:
proto_tree_add_item(tree, hf_osi_options_rtd_reassembly, tvb, offset, 1, ENC_BIG_ENDIAN);
break;
default:
expert_add_info(pinfo, ti, &ei_osi_options_rfd_error_class);
}
proto_tree_add_uint(tree, hf_osi_options_rfd_field, tvb, offset + field, 1, field);
}
/* dissect ATN security label used for policy based interdomain routing.*/
/* For details see ICAO doc 9705 Edition 3 SV5 5.6.2.2.2.2 */
static void
dissect_option_atn_security_label(const guchar sub_type, guchar length,
tvbuff_t *tvb, guint offset,
proto_tree *tree)
{
proto_tree *atn_sl_tree;
guchar len = 0;
guint8 tag_name = 0;
guint security_info_end = 0;
/* check for ATN security label */
if ( OSI_OPT_SECURITY_ATN_SR != sub_type )
return;
/* check Security Registration Length */
len = tvb_get_guint8(tvb, ++offset);
if ( OSI_OPT_SECURITY_ATN_SR_LEN != len )
return;
/* check Security Registration ID */
if ( tvb_memeql(tvb, ++offset , atn_security_registration_val, OSI_OPT_SECURITY_ATN_SR_LEN) )
return;
atn_sl_tree = proto_tree_add_subtree(tree, tvb, offset, length, ott_osi_qos, NULL,
val_to_str(sub_type, osi_opt_sec_atn_sr_vals, "Unknown (0x%x)"));
offset += OSI_OPT_SECURITY_ATN_SR_LEN;
/* Security Information length */
len = tvb_get_guint8(tvb, offset);
if ( OSI_OPT_SECURITY_ATN_SI_MAX_LEN < len )
return;
offset++;
security_info_end = offset + len;
while ( offset < security_info_end ) {
/* check tag name length*/
len = tvb_get_guint8(tvb, offset); /* check tag name length*/
if ( len != 1 )
return;
offset++;
tag_name = tvb_get_guint8(tvb, offset);
offset++;
switch(tag_name) {
case OSI_OPT_SECURITY_ATN_TT:
/* check tag set length*/
len = tvb_get_guint8(tvb, offset);
if ( len != OSI_OPT_SECURITY_ATN_TT_LEN )
return;
offset++;
proto_tree_add_uint_format(atn_sl_tree, hf_clnp_atntt, tvb, offset, 1,
tvb_get_guint8(tvb, offset), "%s: %s",
val_to_str(OSI_OPT_SECURITY_ATN_TT, osi_opt_sec_atn_si_vals, "Unknown (0x%x)"),
val_to_str(tvb_get_guint8(tvb, offset ), osi_opt_sec_atn_tt_vals, "Unknown (0x%x)"));
offset += len;
break;
case OSI_OPT_SECURITY_ATN_SC:
/* check tag set length*/
len = tvb_get_guint8(tvb, offset);
if ( len != OSI_OPT_SECURITY_ATN_SC_LEN )
return;
offset++;
proto_tree_add_uint_format(atn_sl_tree, hf_clnp_atnsc, tvb, offset, 1,
tvb_get_guint8(tvb, offset), "%s: %s",
val_to_str(OSI_OPT_SECURITY_ATN_SC, osi_opt_sec_atn_si_vals, "Unknown (0x%x)"),
val_to_str(tvb_get_guint8(tvb, offset ), osi_opt_sec_atn_sc_vals, "Unknown (0x%x)"));
offset += len;
break;
default:
return;
}
}
}
/* ############################## Dissection Functions ###################### */
/*
* Name: dissect_osi_options()
*
* Description:
* Main entry area for esis de-mangling. This will build the
* main esis tree data and call the sub-protocols as needed.
*
* Input:
* guchar : length of option section
* tvbuff_t * : tvbuff containing packet data
* int : offset into packet where we are (packet_data[offset]== start
* of what we care about)
* proto_tree * : tree of display data. May be NULL.
*
* Output:
* void, but we will add to the proto_tree if it is not NULL.
*/
void
dissect_osi_options(guchar opt_len, tvbuff_t *tvb, int offset, proto_tree *tree, packet_info *pinfo)
{
proto_item *ti;
proto_tree *osi_option_tree = NULL;
guchar parm_len = 0;
guchar parm_type = 0;
guint8 octet;
osi_option_tree = proto_tree_add_subtree(tree, tvb, offset, opt_len,
ott_osi_options, &ti, "### Option Section ###");
if ( 0 == opt_len ) {
expert_add_info(pinfo, ti, &ei_osi_options_none);
return;
}
while ( 0 < opt_len ) {
parm_type = tvb_get_guint8(tvb, offset++);
parm_len = tvb_get_guint8(tvb, offset++);
switch ( parm_type ) {
case OSI_OPT_QOS_MAINTANANCE:
octet = tvb_get_guint8(tvb, offset);
dissect_option_qos(octet, osi_option_tree, tvb, offset);
break;
case OSI_OPT_SECURITY:
octet = tvb_get_guint8(tvb, offset);
if ( clnp_decode_atn_options ) {
dissect_option_atn_security_label(octet,parm_len,tvb, offset,
osi_option_tree);
} else {
ti = proto_tree_add_item(osi_option_tree, hf_osi_options_security_type, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_item_set_len(ti, parm_len);
}
break;
case OSI_OPT_PRIORITY:
octet = tvb_get_guint8(tvb, offset);
if ( OSI_OPT_MAX_PRIORITY >= octet ) {
ti = proto_tree_add_item(osi_option_tree, hf_osi_options_priority, tvb, offset, 1, ENC_BIG_ENDIAN);
} else {
ti = proto_tree_add_uint_format_value(osi_option_tree, hf_osi_options_priority, tvb, offset, 1,
octet, "%u ( Invalid )", octet);
}
proto_item_set_len(ti, parm_len);
break;
case OSI_OPT_ADDRESS_MASK:
proto_tree_add_bytes_format_value(osi_option_tree, hf_osi_options_address_mask, tvb, offset, parm_len,
NULL, "%s",
print_area(tvb, offset, parm_len));
break;
case OSI_OPT_SNPA_MASK:
proto_tree_add_item(osi_option_tree, hf_osi_options_snpa_mask, tvb, offset, parm_len, ENC_NA);
break;
case OSI_OPT_ES_CONFIG_TIMER:
ti = proto_tree_add_item(osi_option_tree, hf_osi_options_esct, tvb, offset, 2, ENC_BIG_ENDIAN);
proto_item_set_len(ti, parm_len); break;
case OSI_OPT_PADDING:
proto_tree_add_item(osi_option_tree, hf_osi_options_padding, tvb, offset, parm_len, ENC_NA);
break;
case OSI_OPT_SOURCE_ROUTING:
case OSI_OPT_RECORD_OF_ROUTE:
dissect_option_route(parm_type, offset, parm_len, tvb,
osi_option_tree);
break;
case OSI_OPT_REASON_OF_DISCARD:
dissect_option_rfd(tvb_get_guint8(tvb, offset),
tvb_get_guint8(tvb, offset + 1), offset, parm_len,
tvb, osi_option_tree, pinfo);
break;
}
opt_len -= parm_len + 2;
offset += parm_len;
}
} /* dissect-osi-options */
/*
* Name: proto_register_osi_options()
*
* Description:
* main register for esis protocol set. We register some display
* formats and the protocol module variables.
*
* NOTE: this procedure to autolinked by the makefile process that
* builds register.c
*
* Input:
* void
*
* Output:
* void
*/
void
proto_register_osi_options(void) {
static hf_register_info hf[] =
{
/* Generated from convert_proto_tree_add_text.pl */
{ &hf_osi_options_qos_maintenance, { "Quality of service maintenance", "osi.options.qos.maintenance", FT_UINT8, BASE_DEC, VALS(osi_opt_qos_vals), OSI_OPT_QOS_MASK, NULL, HFILL }},
{ &hf_osi_options_qos_reserved, { "Reserved", "osi.options.qos.reserved", FT_BOOLEAN, 8, NULL, OSI_OPT_QOS_SUB_RSVD, NULL, HFILL }},
{ &hf_osi_options_qos_sequencing_vs_transit_delay, { "Sequencing versus transit delay", "osi.options.qos.seq_vs_trs", FT_BOOLEAN, 8, NULL, OSI_OPT_QOS_SUB_SEQ_VS_TRS, NULL, HFILL }},
{ &hf_osi_options_congestion_experienced, { "Congestion experienced", "osi.options.qos.cong_exped", FT_BOOLEAN, 8, NULL, OSI_OPT_QOS_SUB_CONG_EXPED, NULL, HFILL }},
{ &hf_osi_options_transit_delay_vs_cost, { "Transit delay versus cost", "osi.options.qos.tsd_vs_cost", FT_BOOLEAN, 8, NULL, OSI_OPT_QOS_SUB_TSD_VS_COST, NULL, HFILL }},
{ &hf_osi_options_residual_error_prob_vs_transit_delay, { "Residual error probability versus transit delay", "osi.options.qos.reserror_trs", FT_BOOLEAN, 8, NULL, OSI_OPT_QOS_SUB_RESERR_TRS, NULL, HFILL }},
{ &hf_osi_options_residual_error_prob_vs_cost, { "Residual error probability versus cost", "osi.options.qos.reserror_cost", FT_BOOLEAN, 8, NULL, OSI_OPT_QOS_SUB_RESERR_COST, NULL, HFILL }},
{ &hf_osi_options_source_routing, { "Source Routing", "osi.options.source_routing", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_route_recording, { "Route Recording", "osi.options.route_recording", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_last_hop, { "Last Hop", "osi.options.last_hop", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_route, { "Route", "osi.options.route", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_rfd_error_class, { "Error Class", "osi.options.rfd.error_class", FT_UINT8, BASE_DEC, VALS(osi_opt_rfd_error_class), OSI_OPT_RFD_MASK, NULL, HFILL }},
{ &hf_osi_options_rtd_general, { "Reason for discard {General}", "osi.options.rtd_general", FT_UINT8, BASE_DEC, VALS(osi_opt_rfd_general), OSI_OPT_RFD_SUB_MASK, NULL, HFILL }},
{ &hf_osi_options_rtd_address, { "Reason for discard {Address}", "osi.options.rtd_address", FT_UINT8, BASE_DEC, VALS(osi_opt_rfd_address), OSI_OPT_RFD_SUB_MASK, NULL, HFILL }},
{ &hf_osi_options_rtd_source_routing, { "Reason for discard {Source Routing}", "osi.options.rtd_source_routing", FT_UINT8, BASE_DEC, VALS(osi_opt_rfd_src_route), OSI_OPT_RFD_SUB_MASK, NULL, HFILL }},
{ &hf_osi_options_rtd_lifetime, { "Reason for discard {Lifetime}", "osi.options.rtd_lifetime", FT_UINT8, BASE_DEC, VALS(osi_opt_rfd_lifetime), OSI_OPT_RFD_SUB_MASK, NULL, HFILL }},
{ &hf_osi_options_rtd_pdu_discarded, { "Reason for discard {PDU discarded}", "osi.options.rtd_pdu_discarded", FT_UINT8, BASE_DEC, VALS(osi_opt_rfd_discarded), OSI_OPT_RFD_SUB_MASK, NULL, HFILL }},
{ &hf_osi_options_rtd_reassembly, { "Reason for discard {Reassembly}", "osi.options.rtd_reassembly", FT_UINT8, BASE_DEC, VALS(osi_opt_rfd_reassembly), OSI_OPT_RFD_SUB_MASK, NULL, HFILL }},
{ &hf_osi_options_rfd_field, { "Field", "osi.options.rfd.field", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_security_type, { "Security type", "osi.options.security_type", FT_UINT8, BASE_DEC, VALS(osi_opt_sec_vals), OSI_OPT_SEC_MASK, NULL, HFILL }},
{ &hf_osi_options_priority, { "Priority", "osi.options.priority", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_address_mask, { "Address Mask", "osi.options.address_mask", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_snpa_mask, { "SNPA Mask", "osi.options.snpa_mask", FT_SYSTEM_ID, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_esct, { "ESCT (seconds)", "osi.options.esct", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_osi_options_padding, { "Padding", "osi.options.padding", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
};
static gint *ott[] = {
&ott_osi_options,
&ott_osi_qos,
&ott_osi_route,
&ott_osi_redirect
};
static ei_register_info ei[] = {
{ &ei_osi_options_none, { "osi.options.none", PI_PROTOCOL, PI_NOTE, "No Options for this PDU", EXPFILL }},
{ &ei_osi_options_rfd_error_class, { "osi.options.rfd.error_class.unknown", PI_PROTOCOL, PI_WARN, "UNKNOWN Error Class", EXPFILL }},
};
expert_module_t *expert_osi_options;
proto_register_field_array(proto_osi, hf, array_length(hf));
proto_register_subtree_array(ott, array_length(ott));
expert_osi_options = expert_register_protocol(proto_osi);
expert_register_field_array(expert_osi_options, ei, array_length(ei));
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/