nexmon – Rev 1
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/* packet-irda.c
* Routines for IrDA dissection
* By Shaun Jackman <sjackman@pathwayconnect.com>
* Copyright 2000 Shaun Jackman
*
* Extended by Jan Kiszka <jan.kiszka@web.de>
* Copyright 2003 Jan Kiszka
*
* 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 <string.h>
#include <epan/packet.h>
#include <epan/address_types.h>
#include <epan/to_str.h>
#include <epan/conversation.h>
#include <epan/xdlc.h>
#include <wiretap/wtap.h>
#include <epan/dissectors/packet-sll.h>
#include "irda-appl.h"
/*
* This plugin dissects infrared data transmissions as defined by the IrDA
* specification (www.irda.org). See
*
* http://www.irda.org/standards/specifications.asp
*
* for various IrDA specifications.
*
* The plugin operates both offline with libpcap files and online on supported
* platforms. Live dissection is currently available for Linux-IrDA
* (irda.sourceforge.net) and for Windows if the Linux-IrDA port IrCOMM2k
* (www.ircomm2k.de) is installed.
*/
/*
* LAP
*/
/* Frame types and templates */
#define INVALID 0xff
/*
* XXX - the IrDA spec gives XID as 0x2c; HDLC (and other HDLC-derived
* protocolc) use 0xAC.
*/
#define IRDA_XID_CMD 0x2c /* Exchange Station Identification */
#define CMD_FRAME 0x01
#define RSP_FRAME 0x00
/* Discovery Flags */
#define S_MASK 0x03
#define CONFLICT 0x04
/* Negotiation Parameters */
#define PI_BAUD_RATE 0x01
#define PI_MAX_TURN_TIME 0x82
#define PI_DATA_SIZE 0x83
#define PI_WINDOW_SIZE 0x84
#define PI_ADD_BOFS 0x85
#define PI_MIN_TURN_TIME 0x86
#define PI_LINK_DISC 0x08
/*
* LMP
*/
/* IrLMP frame opcodes */
#define CONNECT_CMD 0x01
#define CONNECT_CNF 0x81
#define DISCONNECT 0x02
#define ACCESSMODE_CMD 0x03
#define ACCESSMODE_CNF 0x83
#define CONTROL_BIT 0x80
#define RESERVED_BIT 0x80
/* LSAP-SEL's */
#define LSAP_MASK 0x7f
#define LSAP_IAS 0x00
#define LSAP_ANY 0xff
#define LSAP_MAX 0x6f /* 0x70-0x7f are reserved */
#define LSAP_CONNLESS 0x70 /* Connectionless LSAP, mostly used for Ultra */
/*
* IAP
*/
/* IrIAP Op-codes */
#define GET_INFO_BASE 0x01
#define GET_OBJECTS 0x02
#define GET_VALUE 0x03
#define GET_VALUE_BY_CLASS 0x04
#define GET_OBJECT_INFO 0x05
#define GET_ATTRIB_NAMES 0x06
#define IAP_LST 0x80
#define IAP_ACK 0x40
#define IAP_OP 0x3F
#define IAS_SUCCESS 0
#define IAS_CLASS_UNKNOWN 1
#define IAS_ATTRIB_UNKNOWN 2
#define IAS_ATTR_TOO_LONG 3
#define IAS_DISCONNECT 10
#define IAS_UNSUPPORTED 0xFF
/*
* TTP
*/
#define TTP_PARAMETERS 0x80
#define TTP_MORE 0x80
void proto_reg_handoff_irda(void);
void proto_register_irda(void);
/* Initialize the protocol and registered fields */
static int proto_irlap = -1;
static int hf_lap_a = -1;
static int hf_lap_a_cr = -1;
static int hf_lap_a_address = -1;
static int hf_lap_c = -1;
static int hf_lap_c_nr = -1;
static int hf_lap_c_ns = -1;
static int hf_lap_c_p = -1;
static int hf_lap_c_f = -1;
static int hf_lap_c_s = -1;
static int hf_lap_c_u_cmd = -1;
static int hf_lap_c_u_rsp = -1;
static int hf_lap_c_i = -1;
static int hf_lap_c_s_u = -1;
static int hf_lap_i = -1;
static int hf_snrm_saddr = -1;
static int hf_snrm_daddr = -1;
static int hf_snrm_ca = -1;
static int hf_ua_saddr = -1;
static int hf_ua_daddr = -1;
static int hf_negotiation_param = -1;
static int hf_param_pi = -1;
static int hf_param_pl = -1;
static int hf_param_pv = -1;
static int hf_xid_ident = -1;
static int hf_xid_saddr = -1;
static int hf_xid_daddr = -1;
static int hf_xid_flags = -1;
static int hf_xid_s = -1;
static int hf_xid_conflict = -1;
static int hf_xid_slotnr = -1;
static int hf_xid_version = -1;
static int proto_irlmp = -1;
static int hf_lmp_xid_hints = -1;
static int hf_lmp_xid_charset = -1;
static int hf_lmp_xid_name = -1;
static int hf_lmp_xid_name_no_ascii = -1;
static int hf_lmp_dst = -1;
static int hf_lmp_dst_control = -1;
static int hf_lmp_dst_lsap = -1;
static int hf_lmp_src = -1;
static int hf_lmp_src_r = -1;
static int hf_lmp_src_lsap = -1;
static int hf_lmp_opcode = -1;
static int hf_lmp_rsvd = -1;
static int hf_lmp_reason = -1;
static int hf_lmp_mode = -1;
static int hf_lmp_status = -1;
static int proto_iap = -1;
static int hf_iap_ctl = -1;
static int hf_iap_ctl_lst = -1;
static int hf_iap_ctl_ack = -1;
static int hf_iap_ctl_opcode = -1;
static int hf_iap_class_name = -1;
static int hf_iap_attr_name = -1;
static int hf_iap_return = -1;
static int hf_iap_list_len = -1;
static int hf_iap_list_entry = -1;
static int hf_iap_obj_id = -1;
static int hf_iap_attr_type = -1;
static int hf_iap_int = -1;
static int hf_iap_seq_len = -1;
static int hf_iap_oct_seq = -1;
static int hf_iap_char_set = -1;
static int hf_iap_string = -1;
static int hf_iap_invaloctet = -1;
static int hf_iap_invallsap = -1;
static int proto_ttp = -1;
static int hf_ttp_p = -1;
static int hf_ttp_icredit = -1;
static int hf_ttp_m = -1;
static int hf_ttp_dcredit = -1;
static int proto_log = -1;
static int hf_log_msg = -1;
static int hf_log_missed = -1;
/* Initialize the subtree pointers */
static gint ett_irlap = -1;
static gint ett_lap_a = -1;
static gint ett_lap_c = -1;
static gint ett_lap_i = -1;
static gint ett_xid_flags = -1;
static gint ett_log = -1;
static gint ett_irlmp = -1;
static gint ett_lmp_dst = -1;
static gint ett_lmp_src = -1;
static gint ett_iap = -1;
static gint ett_iap_ctl = -1;
static gint ett_ttp = -1;
#define MAX_PARAMETERS 32
static gint ett_param[MAX_PARAMETERS];
static gint ett_iap_entry[MAX_IAP_ENTRIES];
static int irda_address_type = -1;
static const xdlc_cf_items irlap_cf_items = {
&hf_lap_c_nr,
&hf_lap_c_ns,
&hf_lap_c_p,
&hf_lap_c_f,
&hf_lap_c_s,
&hf_lap_c_u_cmd,
&hf_lap_c_u_rsp,
&hf_lap_c_i,
&hf_lap_c_s_u
};
/* IAP conversation type */
typedef struct iap_conversation {
struct iap_conversation* pnext;
guint32 iap_query_frame;
ias_attr_dissector_t* pattr_dissector;
} iap_conversation_t;
/* IrLMP conversation type */
typedef struct lmp_conversation {
struct lmp_conversation* pnext;
guint32 iap_result_frame;
gboolean ttp;
dissector_handle_t dissector;
} lmp_conversation_t;
static const true_false_string lap_cr_vals = {
"Command",
"Response"
};
static const true_false_string set_notset = {
"Set",
"Not set"
};
static const value_string lap_c_ftype_vals[] = {
{ XDLC_I, "Information frame" },
{ XDLC_S, "Supervisory frame" },
{ XDLC_U, "Unnumbered frame" },
{ 0, NULL }
};
static const value_string lap_c_u_cmd_abbr_vals[] = {
{ XDLC_SNRM, "SNRM" },
{ XDLC_DISC, "DISC" },
{ XDLC_UI, "UI" },
{ IRDA_XID_CMD, "XID" },
{ XDLC_TEST, "TEST" },
{ 0, NULL }
};
static const value_string lap_c_u_rsp_abbr_vals[] = {
{ XDLC_SNRM, "RNRM" },
{ XDLC_UA, "UA" },
{ XDLC_FRMR, "FRMR" },
{ XDLC_DM, "DM" },
{ XDLC_RD, "RD" },
{ XDLC_UI, "UI" },
{ XDLC_XID, "XID" },
{ XDLC_TEST, "TEST" },
{ 0, NULL }
};
static const value_string lap_c_u_cmd_vals[] = {
{ XDLC_SNRM>>2, "Set Normal Response Mode" },
{ XDLC_DISC>>2, "Disconnect" },
{ XDLC_UI>>2, "Unnumbered Information" },
{ IRDA_XID_CMD>>2, "Exchange Station Identification" },
{ XDLC_TEST>>2, "Test" },
{ 0, NULL }
};
static const value_string lap_c_u_rsp_vals[] = {
{ XDLC_SNRM>>2, "Request Normal Response Mode" },
{ XDLC_UA>>2, "Unnumbered Acknowledge" },
{ XDLC_FRMR>>2, "Frame Reject" },
{ XDLC_DM>>2, "Disconnect Mode" },
{ XDLC_RD>>2, "Request Disconnect" },
{ XDLC_UI>>2, "Unnumbered Information" },
{ XDLC_XID>>2, "Exchange Station Identification" },
{ XDLC_TEST>>2, "Test" },
{ 0, NULL }
};
static const value_string lap_c_s_vals[] = {
{ XDLC_RR>>2, "Receiver ready" },
{ XDLC_RNR>>2, "Receiver not ready" },
{ XDLC_REJ>>2, "Reject" },
{ XDLC_SREJ>>2, "Selective reject" },
{ 0, NULL }
};
static const value_string xid_slot_numbers[] = {
/* Number of XID slots */
{ 0, "1" },
{ 1, "6" },
{ 2, "8" },
{ 3, "16" },
{ 0, NULL }
};
static const value_string lmp_opcode_vals[] = {
/* IrLMP frame opcodes */
{ CONNECT_CMD, "Connect Command" },
{ CONNECT_CNF, "Connect Confirm" },
{ DISCONNECT, "Disconnect" },
{ ACCESSMODE_CMD, "Access Mode Command" },
{ ACCESSMODE_CNF, "Access Mode Confirm" },
{ 0, NULL }
};
static const value_string lmp_reason_vals[] = {
/* IrLMP disconnect reasons */
{ 0x01, "User Request" },
{ 0x02, "Unexpected IrLAP Disconnect" },
{ 0x03, "Failed to establish IrLAP connection" },
{ 0x04, "IrLAP Reset" },
{ 0x05, "Link Management Initiated Disconnect" },
{ 0x06, "Data delivered on disconnected LSAP-Connection"},
{ 0x07, "Non Responsive LM-MUX Client" },
{ 0x08, "No available LM-MUX Client" },
{ 0x09, "Connection Half Open" },
{ 0x0A, "Illegal Source Address" },
{ 0xFF, "Unspecified Disconnect Reason" },
{ 0, NULL }
};
static const value_string lmp_mode_vals[] = {
/* IrLMP modes */
{ 0x00, "Multiplexed" },
{ 0x01, "Exclusive" },
{ 0, NULL }
};
static const value_string lmp_status_vals[] = {
/* IrLMP status */
{ 0x00, "Success" },
{ 0x01, "Failure" },
{ 0xFF, "Unsupported" },
{ 0, NULL }
};
static const value_string iap_opcode_vals[] = {
/* IrIAP Op-codes */
{ GET_INFO_BASE, "GetInfoBase" },
{ GET_OBJECTS, "GetObjects" },
{ GET_VALUE, "GetValue" },
{ GET_VALUE_BY_CLASS, "GetValueByClass" },
{ GET_OBJECT_INFO, "GetObjectInfo" },
{ GET_ATTRIB_NAMES, "GetAttributeNames" },
{ 0, NULL }
};
static const value_string iap_return_vals[] = {
/* IrIAP Return-codes */
{ IAS_SUCCESS, "Success" },
{ IAS_CLASS_UNKNOWN, "Class/Object Unknown" },
{ IAS_ATTRIB_UNKNOWN, "Attribute Unknown" },
{ IAS_ATTR_TOO_LONG, "Attribute List Too Long" },
{ IAS_DISCONNECT, "Disconnect (Linux-IrDA only)" },
{ IAS_UNSUPPORTED, "Unsupported Optional Operation" },
{ 0, NULL }
};
static const value_string iap_attr_type_vals[] = {
/* LM-IAS Attribute types */
{ IAS_MISSING, "Missing" },
{ IAS_INTEGER, "Integer" },
{ IAS_OCT_SEQ, "Octet Sequence" },
{ IAS_STRING, "String" },
{ 0, NULL }
};
static ias_attr_dissector_t device_attr_dissector[] = {
/* Device attribute dissectors */
/* { "IrLMPSupport", xxx }, not implemented yet... */
{ NULL, NULL }
};
/* IAS class dissectors */
static ias_class_dissector_t class_dissector[] = { CLASS_DISSECTORS };
/*
* Dissect parameter tuple
*/
guint dissect_param_tuple(tvbuff_t* tvb, proto_tree* tree, guint offset)
{
guint8 len = tvb_get_guint8(tvb, offset + 1);
if (tree)
proto_tree_add_item(tree, hf_param_pi, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (tree)
proto_tree_add_item(tree, hf_param_pl, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (len > 0)
{
if (tree)
proto_tree_add_item(tree, hf_param_pv, tvb, offset, len, ENC_NA);
offset += len;
}
return offset;
}
/*
* Dissect TTP
*/
static guint dissect_ttp(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, gboolean data)
{
guint offset = 0;
guint8 head;
char buf[128];
if (tvb_reported_length(tvb) == 0)
return 0;
/* Make entries in Protocol column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "TTP");
head = tvb_get_guint8(tvb, offset);
g_snprintf(buf, 128, ", Credit=%d", head & ~TTP_PARAMETERS);
col_append_str(pinfo->cinfo, COL_INFO, buf);
if (root)
{
/* create display subtree for the protocol */
proto_item* ti = proto_tree_add_item(root, proto_ttp, tvb, 0, -1, ENC_NA);
proto_tree* tree = proto_item_add_subtree(ti, ett_ttp);
if (data)
{
proto_tree_add_item(tree, hf_ttp_m, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_ttp_dcredit, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
else
{
proto_tree_add_item(tree, hf_ttp_p, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(tree, hf_ttp_icredit, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
proto_item_set_len(tree, offset);
}
else
offset++;
return offset;
}
/*
* Dissect IAP request
*/
static void dissect_iap_request(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, guint8 circuit_id)
{
guint offset = 0;
guint8 op;
guint8 clen = 0;
guint8 alen = 0;
guint8 src;
address srcaddr;
address destaddr;
conversation_t* conv;
iap_conversation_t* iap_conv;
char buf[128];
if (tvb_reported_length(tvb) == 0)
return;
/* Make entries in Protocol column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP");
op = tvb_get_guint8(tvb, offset) & IAP_OP;
switch (op)
{
case GET_VALUE_BY_CLASS:
clen = MIN(tvb_get_guint8(tvb, offset + 1), 60);
alen = MIN(tvb_get_guint8(tvb, offset + 1 + 1 + clen), 60);
/* create conversation entry */
src = circuit_id ^ CMD_FRAME;
set_address(&srcaddr, irda_address_type, 1, &src);
set_address(&destaddr, irda_address_type, 1, &circuit_id);
conv = find_conversation(pinfo->num, &srcaddr, &destaddr, PT_NONE, pinfo->srcport, pinfo->destport, 0);
if (conv)
{
iap_conv = (iap_conversation_t*)conversation_get_proto_data(conv, proto_iap);
while (1)
{
if (iap_conv->iap_query_frame == pinfo->num)
{
iap_conv = NULL;
break;
}
if (iap_conv->pnext == NULL)
{
iap_conv->pnext = wmem_new(wmem_file_scope(), iap_conversation_t);
iap_conv = iap_conv->pnext;
break;
}
iap_conv = iap_conv->pnext;
}
}
else
{
conv = conversation_new(pinfo->num, &srcaddr, &destaddr, PT_NONE, pinfo->srcport, pinfo->destport, 0);
iap_conv = wmem_new(wmem_file_scope(), iap_conversation_t);
conversation_add_proto_data(conv, proto_iap, (void*)iap_conv);
}
/* Dissect IAP query if it is new */
if (iap_conv)
{
int i, j;
char class_name[256];
char attr_name[256];
iap_conv->pnext = NULL;
iap_conv->iap_query_frame = pinfo->num;
iap_conv->pattr_dissector = NULL;
tvb_memcpy(tvb, class_name, offset + 1 + 1, clen);
class_name[clen] = 0;
tvb_memcpy(tvb, attr_name, offset + 1 + 1 + clen + 1, alen);
attr_name[alen] = 0;
/* Find the attribute dissector */
for (i = 0; class_dissector[i].class_name != NULL; i++)
if (strcmp(class_name, class_dissector[i].class_name) == 0)
{
for (j = 0; class_dissector[i].pattr_dissector[j].attr_name != NULL; j++)
if (strcmp(attr_name, class_dissector[i].pattr_dissector[j].attr_name) == 0)
{
iap_conv->pattr_dissector = &class_dissector[i].pattr_dissector[j];
break;
}
break;
}
}
col_set_str(pinfo->cinfo, COL_INFO, "GetValueByClass: \"");
tvb_memcpy(tvb, buf, offset + 1 + 1, clen);
memcpy(&buf[clen], "\" \"", 3);
tvb_memcpy(tvb, buf + clen + 3, offset + 1 + 1 + clen + 1, alen);
buf[clen + 3 + alen] = '\"';
buf[clen + 3 + alen + 1] = 0;
col_append_str(pinfo->cinfo, COL_INFO, buf);
}
if (root)
{
/* create display subtree for the protocol */
proto_item* ti = proto_tree_add_item(root, proto_iap, tvb, 0, -1, ENC_NA);
proto_tree* tree = proto_item_add_subtree(ti, ett_iap);
proto_tree* ctl_tree;
ti = proto_tree_add_item(tree, hf_iap_ctl, tvb, offset, 1, ENC_BIG_ENDIAN);
ctl_tree = proto_item_add_subtree(ti, ett_iap_ctl);
proto_tree_add_item(ctl_tree, hf_iap_ctl_lst, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ctl_tree, hf_iap_ctl_ack, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ctl_tree, hf_iap_ctl_opcode, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
switch (op)
{
case GET_VALUE_BY_CLASS:
proto_tree_add_item(tree, hf_iap_class_name, tvb, offset, 1, ENC_ASCII|ENC_BIG_ENDIAN);
offset += 1 + clen;
proto_tree_add_item(tree, hf_iap_attr_name, tvb, offset, 1, ENC_ASCII|ENC_BIG_ENDIAN);
offset += 1 + alen;
break;
}
}
else
{
offset++;
switch (op)
{
case GET_VALUE_BY_CLASS:
offset += 1 + clen + 1 + alen;
break;
}
}
/* If any bytes remain, send it to the generic data dissector */
tvb = tvb_new_subset_remaining(tvb, offset);
call_data_dissector(tvb, pinfo, root);
}
/*
* Dissect IAP result
*/
static void dissect_iap_result(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, guint8 circuit_id)
{
guint offset = 0;
guint len = tvb_reported_length(tvb);
guint n = 0;
guint list_len;
guint8 op;
guint8 retcode;
guint8 type;
guint16 attr_len;
char buf[300];
guint8 src;
address srcaddr;
address destaddr;
conversation_t* conv;
iap_conversation_t* cur_iap_conv;
iap_conversation_t* iap_conv = NULL;
guint32 num;
if (len == 0)
return;
/* Make entries in Protocol column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IAP");
op = tvb_get_guint8(tvb, offset) & IAP_OP;
retcode = tvb_get_guint8(tvb, offset + 1);
src = circuit_id ^ CMD_FRAME;
set_address(&srcaddr, irda_address_type, 1, &src);
set_address(&destaddr, irda_address_type, 1, &circuit_id);
/* Find result value dissector */
conv = find_conversation(pinfo->num, &srcaddr, &destaddr, PT_NONE, pinfo->srcport, pinfo->destport, 0);
if (conv)
{
num = pinfo->num;
iap_conv = (iap_conversation_t*)conversation_get_proto_data(conv, proto_iap);
while (iap_conv && (iap_conv->iap_query_frame >= num))
iap_conv = iap_conv->pnext;
if (iap_conv)
{
cur_iap_conv = iap_conv->pnext;
while (cur_iap_conv)
{
if ((cur_iap_conv->iap_query_frame < num) &&
(cur_iap_conv->iap_query_frame > iap_conv->iap_query_frame))
{
iap_conv = cur_iap_conv;
}
cur_iap_conv = cur_iap_conv->pnext;
}
}
}
col_set_str(pinfo->cinfo, COL_INFO, "Result: ");
col_append_str(pinfo->cinfo, COL_INFO, val_to_str(retcode, iap_return_vals, "0x%02X"));
switch (op)
{
case GET_VALUE_BY_CLASS:
if (retcode == 0)
{
switch (tvb_get_guint8(tvb, offset + 6))
{
case IAS_MISSING:
col_append_str(pinfo->cinfo, COL_INFO, ", Missing");
break;
case IAS_INTEGER:
col_append_fstr(pinfo->cinfo, COL_INFO, ", Integer: %d", tvb_get_ntohl(tvb, offset + 7));
break;
case IAS_OCT_SEQ:
g_snprintf(buf, 300, ", %d Octets", tvb_get_ntohs(tvb, offset + 7));
break;
case IAS_STRING:
n = tvb_get_guint8(tvb, offset + 8);
col_append_fstr(pinfo->cinfo, COL_INFO, ", \"%s\"", tvb_get_string_enc(wmem_packet_scope(), tvb, offset + 9, n, ENC_ASCII));
break;
default:
break;
}
if (tvb_get_ntohs(tvb, offset + 2) > 1)
col_append_str(pinfo->cinfo, COL_INFO, ", ...");
}
break;
}
if (root)
{
/* create display subtree for the protocol */
proto_item* ti = proto_tree_add_item(root, proto_iap, tvb, 0, -1, ENC_NA);
proto_tree* tree = proto_item_add_subtree(ti, ett_iap);
proto_tree* ctl_tree;
proto_tree* entry_tree;
ti = proto_tree_add_item(tree, hf_iap_ctl, tvb, offset, 1, ENC_BIG_ENDIAN);
ctl_tree = proto_item_add_subtree(ti, ett_iap_ctl);
proto_tree_add_item(ctl_tree, hf_iap_ctl_lst, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ctl_tree, hf_iap_ctl_ack, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ctl_tree, hf_iap_ctl_opcode, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_iap_return, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
switch (op)
{
case GET_VALUE_BY_CLASS:
if (retcode == 0)
{
list_len = tvb_get_ntohs(tvb, offset);
proto_tree_add_item(tree, hf_iap_list_len, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
while ((offset < len) && (n < list_len))
{
type = tvb_get_guint8(tvb, offset + 2);
switch (type)
{
case IAS_INTEGER:
attr_len = 4;
break;
case IAS_OCT_SEQ:
attr_len = tvb_get_ntohs(tvb, offset + 2 + 1) + 2;
break;
case IAS_STRING:
attr_len = tvb_get_guint8(tvb, offset + 2 + 1 + 1) + 2;
break;
default:
attr_len = 0;
}
ti = proto_tree_add_item(tree, hf_iap_list_entry, tvb, offset, 2 + 1 + attr_len, ENC_NA);
proto_item_append_text(ti, "%d", n + 1);
entry_tree = proto_item_add_subtree(ti, ett_iap_entry[n]);
proto_tree_add_item(entry_tree, hf_iap_obj_id, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(entry_tree, hf_iap_attr_type, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
switch (type)
{
case IAS_INTEGER:
if (!iap_conv || !iap_conv->pattr_dissector ||
!iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, entry_tree,
n, type, circuit_id))
proto_tree_add_item(entry_tree, hf_iap_int, tvb, offset, 4, ENC_BIG_ENDIAN);
break;
case IAS_OCT_SEQ:
proto_tree_add_item(entry_tree, hf_iap_seq_len, tvb, offset, 2, ENC_BIG_ENDIAN);
if (!iap_conv || !iap_conv->pattr_dissector ||
!iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, entry_tree,
n, type, circuit_id))
proto_tree_add_item(entry_tree, hf_iap_oct_seq, tvb, offset + 2,
attr_len - 2, ENC_NA);
break;
case IAS_STRING:
proto_tree_add_item(entry_tree, hf_iap_char_set, tvb, offset, 1, ENC_BIG_ENDIAN);
if (!iap_conv || !iap_conv->pattr_dissector ||
!iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, entry_tree,
n, type, circuit_id))
proto_tree_add_item(entry_tree, hf_iap_string, tvb, offset + 1, 1, ENC_ASCII|ENC_BIG_ENDIAN);
break;
}
offset += attr_len;
n++;
}
}
break;
}
}
else
{
offset += 2;
switch (op)
{
case GET_VALUE_BY_CLASS:
if (retcode == 0)
{
offset += 2;
while (offset < len)
{
offset += 2;
type = tvb_get_guint8(tvb, offset);
offset++;
switch (type)
{
case IAS_INTEGER:
attr_len = 4;
if (iap_conv && iap_conv->pattr_dissector)
iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, 0,
n, type, circuit_id);
break;
case IAS_OCT_SEQ:
attr_len = tvb_get_ntohs(tvb, offset) + 2;
if (iap_conv && iap_conv->pattr_dissector)
iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, 0,
n, type, circuit_id);
break;
case IAS_STRING:
attr_len = tvb_get_guint8(tvb, offset + 1) + 2;
if (iap_conv && iap_conv->pattr_dissector)
iap_conv->pattr_dissector->value_dissector(tvb, offset, pinfo, 0,
n, type, circuit_id);
break;
default:
attr_len = 0;
}
offset += attr_len;
n++;
}
}
break;
}
}
/* If any bytes remain, send it to the generic data dissector */
tvb = tvb_new_subset_remaining(tvb, offset);
call_data_dissector(tvb, pinfo, root);
}
/*
* Check if IAP result is octet sequence
*/
gboolean check_iap_octet_result(tvbuff_t* tvb, proto_tree* tree, guint offset,
const char* attr_name, guint8 attr_type)
{
if (attr_type != IAS_OCT_SEQ)
{
if (tree)
{
proto_item* ti = proto_tree_add_item(tree, hf_iap_invaloctet, tvb, offset, 0, ENC_NA);
proto_item_append_text(ti, "%s", attr_name);
proto_item_append_text(ti, "\" attribute must be octet sequence!");
}
return FALSE;
}
else
return TRUE;
}
/*
* Check if IAP result is correct LsapSel
*/
guint8 check_iap_lsap_result(tvbuff_t* tvb, proto_tree* tree, guint offset,
const char* attr_name, guint8 attr_type)
{
guint32 lsap;
if ((attr_type != IAS_INTEGER) || ((lsap = tvb_get_ntohl(tvb, offset)) < 0x01) ||
(lsap > 0x6F))
{
if (tree)
{
proto_item* ti = proto_tree_add_item(tree, hf_iap_invallsap, tvb, offset, 0, ENC_NA);
proto_item_append_text(ti, "%s", attr_name);
proto_item_append_text(ti, "\" attribute must be integer value between 0x01 and 0x6F!");
}
return 0;
}
else
return lsap;
}
/*
* Dissect IrDA application protocol
*/
static void dissect_appl_proto(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, pdu_type_t pdu_type, guint8 circuit_id)
{
guint offset = 0;
guint8 src;
address srcaddr;
address destaddr;
conversation_t* conv;
lmp_conversation_t* cur_lmp_conv;
lmp_conversation_t* lmp_conv = NULL;
guint32 num;
src = circuit_id ^ CMD_FRAME;
set_address(&srcaddr, irda_address_type, 1, &src);
set_address(&destaddr, irda_address_type, 1, &circuit_id);
/* Find result value dissector */
conv = find_conversation(pinfo->num, &srcaddr, &destaddr, PT_NONE, pinfo->srcport, pinfo->destport, 0);
if (conv)
{
num = pinfo->num;
lmp_conv = (lmp_conversation_t*)conversation_get_proto_data(conv, proto_irlmp);
while (lmp_conv && (lmp_conv->iap_result_frame >= num))
lmp_conv = lmp_conv->pnext;
if (lmp_conv)
{
cur_lmp_conv = lmp_conv->pnext;
while (cur_lmp_conv)
{
if ((cur_lmp_conv->iap_result_frame < num) &&
(cur_lmp_conv->iap_result_frame > lmp_conv->iap_result_frame))
{
lmp_conv = cur_lmp_conv;
}
cur_lmp_conv = cur_lmp_conv->pnext;
}
}
}
if (lmp_conv)
{
/*g_message("%x:%d->%x:%d = %p\n", src, pinfo->srcport, circuit_id, pinfo->destport, lmp_conv); */
/*g_message("->%d: %d %d %p\n", pinfo->num, lmp_conv->iap_result_frame, lmp_conv->ttp, lmp_conv->proto_dissector); */
if ((lmp_conv->ttp) && (pdu_type != DISCONNECT_PDU))
{
offset += dissect_ttp(tvb, pinfo, root, (pdu_type == DATA_PDU));
tvb = tvb_new_subset_remaining(tvb, offset);
}
call_dissector_with_data(lmp_conv->dissector, tvb, pinfo, root, GUINT_TO_POINTER(pdu_type));
}
else
call_data_dissector(tvb, pinfo, root);
}
/*
* Dissect LMP
*/
static void dissect_irlmp(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, guint8 circuit_id)
{
guint offset = 0;
guint8 dlsap;
guint8 slsap;
guint8 cbit;
guint8 opcode = 0;
/* Make entries in Protocol column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IrLMP");
dlsap = tvb_get_guint8(tvb, offset);
cbit = dlsap & CONTROL_BIT;
dlsap &= ~CONTROL_BIT;
slsap = tvb_get_guint8(tvb, offset+1) & ~CONTROL_BIT;
/* save Lsaps in pinfo */
pinfo->srcport = slsap;
pinfo->destport = dlsap;
if (cbit != 0)
{
opcode = tvb_get_guint8(tvb, offset+2);
col_add_fstr(pinfo->cinfo, COL_INFO, "%d > %d, ", slsap, dlsap);
col_append_str(pinfo->cinfo, COL_INFO, val_to_str(opcode, lmp_opcode_vals, "0x%02X"));
if ((opcode == ACCESSMODE_CMD) || (opcode == ACCESSMODE_CNF))
{
col_append_str(pinfo->cinfo, COL_INFO, " (");
col_append_str(pinfo->cinfo, COL_INFO,
val_to_str(tvb_get_guint8(tvb, offset+4), lmp_mode_vals, "0x%02X"));
col_append_str(pinfo->cinfo, COL_INFO, ")");
}
}
else
col_add_fstr(pinfo->cinfo, COL_INFO, "%d > %d, Len=%d", slsap, dlsap,
tvb_reported_length(tvb) - 2);
if (root)
{
/* create display subtree for the protocol */
proto_item* ti = proto_tree_add_item(root, proto_irlmp, tvb, 0, -1, ENC_NA);
proto_tree* tree = proto_item_add_subtree(ti, ett_irlmp);
proto_tree* dst_tree;
proto_tree* src_tree;
ti = proto_tree_add_item(tree, hf_lmp_dst, tvb, offset, 1, ENC_BIG_ENDIAN);
dst_tree = proto_item_add_subtree(ti, ett_lmp_dst);
proto_tree_add_item(dst_tree, hf_lmp_dst_control, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(dst_tree, hf_lmp_dst_lsap, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
ti = proto_tree_add_item(tree, hf_lmp_src, tvb, offset, 1, ENC_BIG_ENDIAN);
src_tree = proto_item_add_subtree(ti, ett_lmp_src);
proto_tree_add_item(src_tree, hf_lmp_src_r, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(src_tree, hf_lmp_src_lsap, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (cbit != 0)
{
proto_tree_add_item(tree, hf_lmp_opcode, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
switch (opcode)
{
case CONNECT_CMD:
case CONNECT_CNF:
if (offset < tvb_reported_length(tvb))
{
proto_tree_add_item(tree, hf_lmp_rsvd, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
}
break;
case DISCONNECT:
proto_tree_add_item(tree, hf_lmp_reason, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
break;
case ACCESSMODE_CMD:
proto_tree_add_item(tree, hf_lmp_rsvd, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_lmp_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
break;
case ACCESSMODE_CNF:
proto_tree_add_item( tree, hf_lmp_status, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(tree, hf_lmp_mode, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
break;
}
}
tvb = tvb_new_subset_remaining(tvb, offset);
proto_item_set_len(tree, offset);
}
else
{
offset += 2;
if (cbit != 0)
{
offset += 1;
switch (opcode)
{
case CONNECT_CMD:
case CONNECT_CNF:
if (offset < tvb_reported_length(tvb))
offset++;
break;
case DISCONNECT:
offset++;
break;
case ACCESSMODE_CMD:
case ACCESSMODE_CNF:
offset += 2;
break;
}
}
tvb = tvb_new_subset_remaining(tvb, offset);
}
if (cbit == 0)
{
if (dlsap == LSAP_IAS)
dissect_iap_request(tvb, pinfo, root, circuit_id);
else if (slsap == LSAP_IAS)
dissect_iap_result(tvb, pinfo, root, circuit_id);
else
dissect_appl_proto(tvb, pinfo, root, DATA_PDU, circuit_id);
}
else
{
if ((dlsap == LSAP_IAS) || (slsap == LSAP_IAS))
call_data_dissector(tvb, pinfo, root);
else
switch (opcode)
{
case CONNECT_CMD:
case CONNECT_CNF:
dissect_appl_proto(tvb, pinfo, root, CONNECT_PDU, circuit_id);
break;
case DISCONNECT:
dissect_appl_proto(tvb, pinfo, root, DISCONNECT_PDU, circuit_id);
break;
default:
call_data_dissector(tvb, pinfo, root);
}
}
}
/*
* Add LMP conversation
*/
void add_lmp_conversation(packet_info* pinfo, guint8 dlsap, gboolean ttp, dissector_handle_t dissector, guint8 circuit_id)
{
guint8 dest;
address srcaddr;
address destaddr;
conversation_t* conv;
lmp_conversation_t* lmp_conv = NULL;
/*g_message("%d: add_lmp_conversation(%p, %d, %d, %p) = ", pinfo->num, pinfo, dlsap, ttp, proto_dissector); */
set_address(&srcaddr, irda_address_type, 1, &circuit_id);
dest = circuit_id ^ CMD_FRAME;
set_address(&destaddr, irda_address_type, 1, &dest);
conv = find_conversation(pinfo->num, &destaddr, &srcaddr, PT_NONE, dlsap, 0, NO_PORT_B);
if (conv)
{
lmp_conv = (lmp_conversation_t*)conversation_get_proto_data(conv, proto_irlmp);
while (1)
{
/* Does entry already exist? */
if (lmp_conv->iap_result_frame == pinfo->num)
return;
if (lmp_conv->pnext == NULL)
{
lmp_conv->pnext = wmem_new(wmem_file_scope(), lmp_conversation_t);
lmp_conv = lmp_conv->pnext;
break;
}
lmp_conv = lmp_conv->pnext;
}
}
else
{
conv = conversation_new(pinfo->num, &destaddr, &srcaddr, PT_NONE, dlsap, 0, NO_PORT_B);
lmp_conv = wmem_new(wmem_file_scope(), lmp_conversation_t);
conversation_add_proto_data(conv, proto_irlmp, (void*)lmp_conv);
}
lmp_conv->pnext = NULL;
lmp_conv->iap_result_frame = pinfo->num;
lmp_conv->ttp = ttp;
lmp_conv->dissector = dissector;
/*g_message("%p\n", lmp_conv); */
}
/*
* Dissect Negotiation Parameters
*/
static guint dissect_negotiation(tvbuff_t* tvb, proto_tree* tree, guint offset)
{
guint n = 0;
proto_item* ti;
proto_tree* p_tree;
char buf[256];
guint8 pv;
while (tvb_reported_length_remaining(tvb, offset) > 0)
{
guint8 p_len = tvb_get_guint8(tvb, offset + 1);
if (tree)
{
ti = proto_tree_add_item(tree, hf_negotiation_param, tvb, offset, p_len + 2, ENC_NA);
p_tree = proto_item_add_subtree(ti, ett_param[n]);
pv = tvb_get_guint8(tvb, offset+2);
buf[0] = 0;
switch (tvb_get_guint8(tvb, offset))
{
case PI_BAUD_RATE:
proto_item_append_text(ti, ": Baud Rate (");
if (pv & 0x01)
g_strlcat(buf, ", 2400", 256);
if (pv & 0x02)
g_strlcat(buf, ", 9600", 256);
if (pv & 0x04)
g_strlcat(buf, ", 19200", 256);
if (pv & 0x08)
g_strlcat(buf, ", 38400", 256);
if (pv & 0x10)
g_strlcat(buf, ", 57600", 256);
if (pv & 0x20)
g_strlcat(buf, ", 115200", 256);
if (pv & 0x40)
g_strlcat(buf, ", 576000", 256);
if (pv & 0x80)
g_strlcat(buf, ", 1152000", 256);
if ((p_len > 1) && (tvb_get_guint8(tvb, offset+3) & 0x01))
g_strlcat(buf, ", 4000000", 256);
g_strlcat(buf, " bps)", 256);
proto_item_append_text(ti, "%s", buf+2);
break;
case PI_MAX_TURN_TIME:
proto_item_append_text(ti, ": Maximum Turn Time (");
if (pv & 0x01)
g_strlcat(buf, ", 500", 256);
if (pv & 0x02)
g_strlcat(buf, ", 250", 256);
if (pv & 0x04)
g_strlcat(buf, ", 100", 256);
if (pv & 0x08)
g_strlcat(buf, ", 50", 256);
g_strlcat(buf, " ms)", 256);
proto_item_append_text(ti, "%s", buf+2);
break;
case PI_DATA_SIZE:
proto_item_append_text(ti, ": Data Size (");
if (pv & 0x01)
g_strlcat(buf, ", 64", 256);
if (pv & 0x02)
g_strlcat(buf, ", 128", 256);
if (pv & 0x04)
g_strlcat(buf, ", 256", 256);
if (pv & 0x08)
g_strlcat(buf, ", 512", 256);
if (pv & 0x10)
g_strlcat(buf, ", 1024", 256);
if (pv & 0x20)
g_strlcat(buf, ", 2048", 256);
g_strlcat(buf, " bytes)", 256);
proto_item_append_text(ti, "%s", buf+2);
break;
case PI_WINDOW_SIZE:
proto_item_append_text(ti, ": Window Size (");
if (pv & 0x01)
g_strlcat(buf, ", 1", 256);
if (pv & 0x02)
g_strlcat(buf, ", 2", 256);
if (pv & 0x04)
g_strlcat(buf, ", 3", 256);
if (pv & 0x08)
g_strlcat(buf, ", 4", 256);
if (pv & 0x10)
g_strlcat(buf, ", 5", 256);
if (pv & 0x20)
g_strlcat(buf, ", 6", 256);
if (pv & 0x40)
g_strlcat(buf, ", 7", 256);
g_strlcat(buf, " frame window)", 256);
proto_item_append_text(ti, "%s", buf+2);
break;
case PI_ADD_BOFS:
proto_item_append_text(ti, ": Additional BOFs (");
if (pv & 0x01)
g_strlcat(buf, ", 48", 256);
if (pv & 0x02)
g_strlcat(buf, ", 24", 256);
if (pv & 0x04)
g_strlcat(buf, ", 12", 256);
if (pv & 0x08)
g_strlcat(buf, ", 5", 256);
if (pv & 0x10)
g_strlcat(buf, ", 3", 256);
if (pv & 0x20)
g_strlcat(buf, ", 2", 256);
if (pv & 0x40)
g_strlcat(buf, ", 1", 256);
if (pv & 0x80)
g_strlcat(buf, ", 0", 256);
g_strlcat(buf, " additional BOFs at 115200)", 256);
proto_item_append_text(ti, "%s", buf+2);
break;
case PI_MIN_TURN_TIME:
proto_item_append_text(ti, ": Minimum Turn Time (");
if (pv & 0x01)
g_strlcat(buf, ", 10", 256);
if (pv & 0x02)
g_strlcat(buf, ", 5", 256);
if (pv & 0x04)
g_strlcat(buf, ", 1", 256);
if (pv & 0x08)
g_strlcat(buf, ", 0.5", 256);
if (pv & 0x10)
g_strlcat(buf, ", 0.1", 256);
if (pv & 0x20)
g_strlcat(buf, ", 0.05", 256);
if (pv & 0x40)
g_strlcat(buf, ", 0.01", 256);
if (pv & 0x80)
g_strlcat(buf, ", 0", 256);
g_strlcat(buf, " ms)", 256);
proto_item_append_text(ti, "%s", buf+2);
break;
case PI_LINK_DISC:
proto_item_append_text(ti, ": Link Disconnect/Threshold Time (");
if (pv & 0x01)
g_strlcat(buf, ", 3/0", 256);
if (pv & 0x02)
g_strlcat(buf, ", 8/3", 256);
if (pv & 0x04)
g_strlcat(buf, ", 12/3", 256);
if (pv & 0x08)
g_strlcat(buf, ", 16/3", 256);
if (pv & 0x10)
g_strlcat(buf, ", 20/3", 256);
if (pv & 0x20)
g_strlcat(buf, ", 25/3", 256);
if (pv & 0x40)
g_strlcat(buf, ", 30/3", 256);
if (pv & 0x80)
g_strlcat(buf, ", 40/3", 256);
g_strlcat(buf, " s)", 256);
proto_item_append_text(ti, "%s", buf+2);
break;
default:
proto_item_append_text(ti, ": unknown");
}
} else
p_tree = NULL;
offset = dissect_param_tuple(tvb, p_tree, offset);
n++;
}
return offset;
}
/*
* Dissect XID packet
*/
static void dissect_xid(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, proto_tree* lap_tree, gboolean is_command)
{
int offset = 0;
proto_item* ti = NULL;
proto_tree* i_tree = NULL;
proto_tree* flags_tree;
guint32 saddr, daddr;
guint8 s;
proto_tree* lmp_tree = NULL;
if (lap_tree)
{
ti = proto_tree_add_item(lap_tree, hf_lap_i, tvb, offset, -1, ENC_NA);
i_tree = proto_item_add_subtree(ti, ett_lap_i);
proto_tree_add_item(i_tree, hf_xid_ident, tvb, offset, 1, ENC_BIG_ENDIAN);
}
offset++;
saddr = tvb_get_letohl(tvb, offset);
col_add_fstr(pinfo->cinfo, COL_DEF_SRC, "0x%08X", saddr);
if (lap_tree)
proto_tree_add_uint(i_tree, hf_xid_saddr, tvb, offset, 4, saddr);
offset += 4;
daddr = tvb_get_letohl(tvb, offset);
col_add_fstr(pinfo->cinfo, COL_DEF_DST, "0x%08X", daddr);
if (lap_tree)
proto_tree_add_uint(i_tree, hf_xid_daddr, tvb, offset, 4, daddr);
offset += 4;
if (lap_tree)
{
ti = proto_tree_add_item(i_tree, hf_xid_flags, tvb, offset, 1, ENC_BIG_ENDIAN);
flags_tree = proto_item_add_subtree(ti, ett_xid_flags);
proto_tree_add_item(flags_tree, hf_xid_s, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(flags_tree, hf_xid_conflict, tvb, offset, 1, ENC_BIG_ENDIAN);
}
offset++;
if (is_command)
{
s = tvb_get_guint8(tvb, offset);
if (s == 0xFF)
col_append_str(pinfo->cinfo, COL_INFO, ", s=final");
else
col_append_fstr(pinfo->cinfo, COL_INFO, ", s=%u", s);
if (lap_tree)
{
ti = proto_tree_add_uint(i_tree, hf_xid_slotnr, tvb, offset, 1, s);
if (s == 0xFF)
proto_item_append_text(ti, " (final)");
}
}
offset++;
if (lap_tree)
proto_tree_add_item(i_tree, hf_xid_version, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
if (lap_tree)
{
proto_item_set_end(lap_tree, tvb, offset);
proto_item_set_end(i_tree, tvb, offset);
}
if (tvb_reported_length_remaining(tvb, offset) > 0)
{
guint hints_len;
guint8 hint1 = 0;
guint8 hint2 = 0;
char buf[23];
if (root)
{
ti = proto_tree_add_item(root, proto_irlmp, tvb, offset, -1, ENC_NA);
lmp_tree = proto_item_add_subtree(ti, ett_irlmp);
}
for (hints_len = 0;;)
{
guint8 hint = tvb_get_guint8(tvb, offset + hints_len++);
if (hints_len == 1)
hint1 = hint;
else if (hints_len == 2)
hint2 = hint;
if ((hint & 0x80) == 0)
break;
}
if (root)
{
ti = proto_tree_add_item(lmp_tree, hf_lmp_xid_hints, tvb, offset, hints_len, ENC_NA);
if ((hint1 | hint2) != 0)
{
char service_hints[256];
service_hints[0] = 0;
if (hint1 & 0x01)
g_strlcat(service_hints, ", PnP Compatible", 256);
if (hint1 & 0x02)
g_strlcat(service_hints, ", PDA/Palmtop", 256);
if (hint1 & 0x04)
g_strlcat(service_hints, ", Computer", 256);
if (hint1 & 0x08)
g_strlcat(service_hints, ", Printer", 256);
if (hint1 & 0x10)
g_strlcat(service_hints, ", Modem", 256);
if (hint1 & 0x20)
g_strlcat(service_hints, ", Fax", 256);
if (hint1 & 0x40)
g_strlcat(service_hints, ", LAN Access", 256);
if (hint2 & 0x01)
g_strlcat(service_hints, ", Telephony", 256);
if (hint2 & 0x02)
g_strlcat(service_hints, ", File Server", 256);
if (hint2 & 0x04)
g_strlcat(service_hints, ", IrCOMM", 256);
if (hint2 & 0x20)
g_strlcat(service_hints, ", OBEX", 256);
g_strlcat(service_hints, ")", 256);
service_hints[0] = ' ';
service_hints[1] = '(';
proto_item_append_text(ti, "%s", service_hints);
}
}
offset += hints_len;
if (tvb_reported_length_remaining(tvb, offset) > 0)
{
guint8 cset;
gint name_len;
cset = tvb_get_guint8(tvb, offset);
if (root)
proto_tree_add_uint(lmp_tree, hf_lmp_xid_charset, tvb, offset, 1, cset);
offset++;
name_len = tvb_reported_length_remaining(tvb, offset);
if (name_len > 0)
{
if (cset == 0x00)
{
if (name_len > 22)
name_len = 22;
tvb_memcpy(tvb, buf, offset, name_len);
buf[name_len] = 0;
col_append_str(pinfo->cinfo, COL_INFO, ", \"");
col_append_str(pinfo->cinfo, COL_INFO, buf);
col_append_str(pinfo->cinfo, COL_INFO, "\"");
if (root)
proto_tree_add_item(lmp_tree, hf_lmp_xid_name, tvb, offset,
-1, ENC_ASCII|ENC_NA);
}
else
{
if (root)
proto_tree_add_item(lmp_tree, hf_lmp_xid_name_no_ascii, tvb, offset,
-1, ENC_NA);
}
}
}
}
}
/*
* Dissect Log Messages
*/
static void dissect_log(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root)
{
/* Make entries in Protocol column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Log");
/* missed messages? */
if (pinfo->pseudo_header->irda.pkttype == IRDA_MISSED_MSG)
{
col_set_str(pinfo->cinfo, COL_INFO, "WARNING: Missed one or more messages while capturing!");
}
else
{
guint length;
char buf[256];
length = tvb_captured_length(tvb);
if (length > sizeof(buf)-1)
length = sizeof(buf)-1;
tvb_memcpy(tvb, buf, 0, length);
buf[length] = 0;
if (length > 0 && buf[length-1] == '\n')
buf[length-1] = 0;
else if (length > 1 && buf[length-2] == '\n')
buf[length-2] = 0;
col_add_str(pinfo->cinfo, COL_INFO, buf);
}
if (root)
{
proto_item* ti = proto_tree_add_item(root, proto_log, tvb, 0, -1, ENC_NA);
proto_tree* tree = proto_item_add_subtree(ti, ett_log);
if (pinfo->pseudo_header->irda.pkttype == IRDA_MISSED_MSG)
proto_tree_add_item(tree, hf_log_missed, tvb, 0, 0, ENC_NA);
else
proto_tree_add_item(tree, hf_log_msg, tvb, 0, -1, ENC_ASCII|ENC_NA);
}
}
/*
* Dissect IrLAP
*/
static void dissect_irlap(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root)
{
int offset = 0;
guint8 circuit_id, c;
gboolean is_response;
char addr[9];
proto_item* ti = NULL;
proto_tree* tree = NULL;
proto_tree* i_tree = NULL;
guint32 saddr, daddr;
guint8 ca;
/* Make entries in Protocol column on summary display */
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IrLAP");
/* Clear Info column */
col_clear(pinfo->cinfo, COL_INFO);
/* set direction column */
switch (pinfo->pseudo_header->irda.pkttype)
{
case IRDA_OUTGOING:
col_set_str(pinfo->cinfo, COL_IF_DIR, "Out");
break;
case IRDA_INCOMING:
col_set_str(pinfo->cinfo, COL_IF_DIR, "In");
break;
}
/* decode values used for demuxing */
circuit_id = tvb_get_guint8(tvb, 0);
/* initially set address columns to connection address */
g_snprintf(addr, sizeof(addr)-1, "0x%02X", circuit_id >> 1);
col_add_str(pinfo->cinfo, COL_DEF_SRC, addr);
col_add_str(pinfo->cinfo, COL_DEF_DST, addr);
if (root)
{
proto_tree* a_tree;
proto_item* addr_item;
/* create display subtree for the protocol */
ti = proto_tree_add_item(root, proto_irlap, tvb, 0, -1, ENC_NA);
tree = proto_item_add_subtree(ti, ett_irlap);
/* create subtree for the address field */
ti = proto_tree_add_item(tree, hf_lap_a, tvb, offset, 1, ENC_BIG_ENDIAN);
a_tree = proto_item_add_subtree(ti, ett_lap_a);
proto_tree_add_item(a_tree, hf_lap_a_cr, tvb, offset, 1, ENC_BIG_ENDIAN);
addr_item = proto_tree_add_item(a_tree, hf_lap_a_address, tvb, offset, 1, ENC_BIG_ENDIAN);
switch (circuit_id & ~CMD_FRAME)
{
case 0:
proto_item_append_text(addr_item, " (NULL Address)");
break;
case 0xFE:
proto_item_append_text(addr_item, " (Broadcast)");
break;
}
}
is_response = ((circuit_id & CMD_FRAME) == 0);
offset++;
/* process the control field */
c = dissect_xdlc_control(tvb, 1, pinfo, tree, hf_lap_c,
ett_lap_c, &irlap_cf_items, NULL, lap_c_u_cmd_abbr_vals,
lap_c_u_rsp_abbr_vals, is_response, FALSE, FALSE);
offset++;
if ((c & XDLC_I_MASK) == XDLC_I) {
/* I frame */
proto_item_set_len(tree, offset);
tvb = tvb_new_subset_remaining(tvb, offset);
dissect_irlmp(tvb, pinfo, root, circuit_id);
return;
}
if ((c & 0x03) == XDLC_U) {
/* U frame */
switch (c & XDLC_U_MODIFIER_MASK)
{
case XDLC_SNRM:
if (root)
{
ti = proto_tree_add_item(tree, hf_lap_i, tvb, offset, -1, ENC_NA);
i_tree = proto_item_add_subtree(ti, ett_lap_i);
}
saddr = tvb_get_letohl(tvb, offset);
if (!is_response)
{
col_add_fstr(pinfo->cinfo, COL_DEF_SRC, "0x%08X", saddr);
}
if (root)
proto_tree_add_uint(i_tree, hf_snrm_saddr, tvb, offset, 4, saddr);
offset += 4;
daddr = tvb_get_letohl(tvb, offset);
if (!is_response)
{
col_add_fstr(pinfo->cinfo, COL_DEF_DST, "0x%08X", daddr);
}
if (root)
proto_tree_add_uint(i_tree, hf_snrm_daddr, tvb, offset, 4, daddr);
offset += 4;
ca = tvb_get_guint8(tvb, offset);
if (!is_response)
{
col_append_fstr(pinfo->cinfo, COL_INFO, ", ca=0x%02X",
ca >> 1);
}
if (root)
proto_tree_add_uint(i_tree, hf_snrm_ca, tvb, offset, 1, ca >> 1);
offset++;
offset = dissect_negotiation(tvb, i_tree, offset);
if (root)
proto_item_set_end(ti, tvb, offset);
break;
case IRDA_XID_CMD:
tvb = tvb_new_subset_remaining(tvb, offset);
dissect_xid(tvb, pinfo, root, tree, TRUE);
return;
case XDLC_UA:
if (tvb_reported_length_remaining(tvb, offset) > 0)
{
if (root)
{
ti = proto_tree_add_item(tree, hf_lap_i, tvb, offset, -1, ENC_NA);
i_tree = proto_item_add_subtree(ti, ett_lap_i);
}
saddr = tvb_get_letohl(tvb, offset);
col_add_fstr(pinfo->cinfo, COL_DEF_SRC, "0x%08X", saddr);
if (root)
proto_tree_add_uint(i_tree, hf_ua_saddr, tvb, offset, 4, saddr);
offset += 4;
daddr = tvb_get_letohl(tvb, offset);
col_add_fstr(pinfo->cinfo, COL_DEF_DST, "0x%08X", daddr);
if (root)
proto_tree_add_uint(i_tree, hf_ua_daddr, tvb, offset, 4, daddr);
offset += 4;
offset = dissect_negotiation(tvb, i_tree, offset);
if (root)
proto_item_set_end(ti, tvb, offset);
}
break;
case XDLC_XID:
tvb = tvb_new_subset_remaining(tvb, offset);
dissect_xid(tvb, pinfo, root, tree, FALSE);
return;
}
}
/* If any bytes remain, send it to the generic data dissector */
if (tvb_reported_length_remaining(tvb, offset) > 0)
{
tvb = tvb_new_subset_remaining(tvb, offset);
call_data_dissector(tvb, pinfo, root);
}
}
/*
* Dissect IrDA protocol
*/
static int dissect_irda(tvbuff_t* tvb, packet_info* pinfo, proto_tree* root, void* data _U_)
{
/* check if log message */
if ((pinfo->pseudo_header->irda.pkttype & IRDA_CLASS_MASK) == IRDA_CLASS_LOG)
{
dissect_log(tvb, pinfo, root);
return tvb_captured_length(tvb);
}
dissect_irlap(tvb, pinfo, root);
return tvb_captured_length(tvb);
}
static int irda_addr_to_str(const address* addr, gchar *buf, int buf_len _U_)
{
const guint8 *addrdata = (const guint8 *)addr->data;
gchar *start_buf = buf;
buf = uint_to_str_back(buf, *addrdata);
*buf = '\0';
return (int)(buf-start_buf+1);
}
static int irda_addr_str_len(const address* addr _U_)
{
return 11; /* Leaves required space (10 bytes) for uint_to_str_back() */
}
static const char* irda_col_filter_str(const address* addr _U_, gboolean is_src _U_)
{
return "irlap.a";
}
static int irda_addr_len(void)
{
return 1;
}
/*
* Register the protocol with Wireshark
* This format is required because a script is used to build the C function
* that calls all the protocol registrations.
*/
void proto_register_irda(void)
{
guint i;
/* Setup list of header fields */
static hf_register_info hf_lap[] = {
{ &hf_lap_a,
{ "Address Field", "irlap.a",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_lap_a_cr,
{ "C/R", "irlap.a.cr",
FT_BOOLEAN, 8, TFS(&lap_cr_vals), CMD_FRAME,
NULL, HFILL }},
{ &hf_lap_a_address,
{ "Address", "irlap.a.address",
FT_UINT8, BASE_HEX, NULL, ~CMD_FRAME,
NULL, HFILL }},
{ &hf_lap_c,
{ "Control Field", "irlap.c",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_lap_c_nr,
{ "N(R)", "irlap.c.n_r",
FT_UINT8, BASE_DEC, NULL, XDLC_N_R_MASK,
NULL, HFILL }},
{ &hf_lap_c_ns,
{ "N(S)", "irlap.c.n_s",
FT_UINT8, BASE_DEC, NULL, XDLC_N_S_MASK,
NULL, HFILL }},
{ &hf_lap_c_p,
{ "Poll", "irlap.c.p",
FT_BOOLEAN, 8, TFS(&set_notset), XDLC_P_F,
NULL, HFILL }},
{ &hf_lap_c_f,
{ "Final", "irlap.c.f",
FT_BOOLEAN, 8, TFS(&set_notset), XDLC_P_F,
NULL, HFILL }},
{ &hf_lap_c_s,
{ "Supervisory frame type", "irlap.c.s_ftype",
FT_UINT8, BASE_HEX, VALS(lap_c_s_vals), XDLC_S_FTYPE_MASK,
NULL, HFILL }},
{ &hf_lap_c_u_cmd,
{ "Command", "irlap.c.u_modifier_cmd",
FT_UINT8, BASE_HEX, VALS(lap_c_u_cmd_vals), XDLC_U_MODIFIER_MASK,
NULL, HFILL }},
{ &hf_lap_c_u_rsp,
{ "Response", "irlap.c.u_modifier_resp",
FT_UINT8, BASE_HEX, VALS(lap_c_u_rsp_vals), XDLC_U_MODIFIER_MASK,
NULL, HFILL }},
{ &hf_lap_c_i,
{ "Frame Type", "irlap.c.ftype",
FT_UINT8, BASE_HEX, VALS(lap_c_ftype_vals), XDLC_I_MASK,
NULL, HFILL }},
{ &hf_lap_c_s_u,
{ "Frame Type", "irlap.c.ftype",
FT_UINT8, BASE_HEX, VALS(lap_c_ftype_vals), XDLC_S_U_MASK,
NULL, HFILL }},
{ &hf_lap_i,
{ "Information Field", "irlap.i",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_snrm_saddr,
{ "Source Device Address", "irlap.snrm.saddr",
FT_UINT32, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_snrm_daddr,
{ "Destination Device Address", "irlap.snrm.daddr",
FT_UINT32, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_snrm_ca,
{ "Connection Address", "irlap.snrm.ca",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_negotiation_param,
{ "Negotiation Parameter", "irlap.negotiation",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_param_pi,
{ "Parameter Identifier", "irlap.pi",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_param_pl,
{ "Parameter Length", "irlap.pl",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_param_pv,
{ "Parameter Value", "irlap.pv",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_ua_saddr,
{ "Source Device Address", "irlap.ua.saddr",
FT_UINT32, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_ua_daddr,
{ "Destination Device Address", "irlap.ua.daddr",
FT_UINT32, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_xid_ident,
{ "Format Identifier", "irlap.xid.fi",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_xid_saddr,
{ "Source Device Address", "irlap.xid.saddr",
FT_UINT32, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_xid_daddr,
{ "Destination Device Address", "irlap.xid.daddr",
FT_UINT32, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_xid_flags,
{ "Discovery Flags", "irlap.xid.flags",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_xid_s,
{ "Number of Slots", "irlap.xid.s",
FT_UINT8, BASE_DEC, VALS(xid_slot_numbers), S_MASK,
NULL, HFILL }},
{ &hf_xid_conflict,
{ "Conflict", "irlap.xid.conflict",
FT_BOOLEAN, 8, TFS(&set_notset), CONFLICT,
NULL, HFILL }},
{ &hf_xid_slotnr,
{ "Slot Number", "irlap.xid.slotnr",
FT_UINT8, BASE_DEC, NULL, 0,
NULL, HFILL }},
{ &hf_xid_version,
{ "Version Number", "irlap.xid.version",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }}
};
static hf_register_info hf_log[] = {
{ &hf_log_msg,
{ "Message", "log.msg",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_log_missed,
{ "WARNING: Missed one or more messages while capturing!", "log.missed",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }}
};
static hf_register_info hf_lmp[] = {
{ &hf_lmp_xid_hints,
{ "Service Hints", "irlmp.xid.hints",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_lmp_xid_charset,
{ "Character Set", "irlmp.xid.charset",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_lmp_xid_name,
{ "Device Nickname", "irlmp.xid.name",
FT_STRING, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_lmp_xid_name_no_ascii,
{ "Device Nickname (unsupported character set)", "irlmp.xid.name.no_ascii",
FT_BYTES, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_lmp_dst,
{ "Destination", "irlmp.dst",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_lmp_dst_control,
{ "Control Bit", "irlmp.dst.c",
FT_BOOLEAN, 8, TFS(&set_notset), CONTROL_BIT,
NULL, HFILL }},
{ &hf_lmp_dst_lsap,
{ "Destination LSAP", "irlmp.dst.lsap",
FT_UINT8, BASE_DEC, NULL, ~CONTROL_BIT,
NULL, HFILL }},
{ &hf_lmp_src,
{ "Source", "irlmp.src",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_lmp_src_r,
{ "reserved", "irlmp.src.r",
FT_UINT8, BASE_DEC, NULL, RESERVED_BIT,
NULL, HFILL }},
{ &hf_lmp_src_lsap,
{ "Source LSAP", "irlmp.src.lsap",
FT_UINT8, BASE_DEC, NULL, ~RESERVED_BIT,
NULL, HFILL }},
{ &hf_lmp_opcode,
{ "Opcode", "irlmp.opcode",
FT_UINT8, BASE_HEX, VALS(lmp_opcode_vals), 0x0,
NULL, HFILL }},
{ &hf_lmp_rsvd,
{ "Reserved", "irlmp.rsvd",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_lmp_reason,
{ "Reason", "irlmp.reason",
FT_UINT8, BASE_HEX, VALS(lmp_reason_vals), 0x0,
NULL, HFILL }},
{ &hf_lmp_mode,
{ "Mode", "irlmp.mode",
FT_UINT8, BASE_HEX, VALS(lmp_mode_vals), 0x0,
NULL, HFILL }},
{ &hf_lmp_status,
{ "Status", "irlmp.status",
FT_UINT8, BASE_HEX, VALS(lmp_status_vals), 0x0,
NULL, HFILL }}
};
static hf_register_info hf_iap[] = {
{ &hf_iap_ctl,
{ "Control Field", "iap.ctl",
FT_UINT8, BASE_HEX, NULL, 0,
NULL, HFILL }},
{ &hf_iap_ctl_lst,
{ "Last Frame", "iap.ctl.lst",
FT_BOOLEAN, 8, TFS(&set_notset), IAP_LST,
NULL, HFILL }},
{ &hf_iap_ctl_ack,
{ "Acknowledge", "iap.ctl.ack",
FT_BOOLEAN, 8, TFS(&set_notset), IAP_ACK,
NULL, HFILL }},
{ &hf_iap_ctl_opcode,
{ "Opcode", "iap.ctl.opcode",
FT_UINT8, BASE_HEX, VALS(iap_opcode_vals), IAP_OP,
NULL, HFILL }},
{ &hf_iap_class_name,
{ "Class Name", "iap.classname",
FT_UINT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_attr_name,
{ "Attribute Name", "iap.attrname",
FT_UINT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_return,
{ "Return", "iap.return",
FT_UINT8, BASE_HEX, VALS(iap_return_vals), 0x0,
NULL, HFILL }},
{ &hf_iap_list_len,
{ "List Length", "iap.listlen",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_list_entry,
{ "List Entry", "iap.listentry",
FT_NONE, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_obj_id,
{ "Object Identifier", "iap.objectid",
FT_UINT16, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_attr_type,
{ "Type", "iap.attrtype",
FT_UINT8, BASE_DEC, VALS(iap_attr_type_vals), 0x0,
NULL, HFILL }},
{ &hf_iap_int,
{ "Value", "iap.int",
FT_INT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_seq_len,
{ "Sequence Length", "iap.seqlen",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_oct_seq,
{ "Sequence", "iap.octseq",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_char_set,
{ "Character Set", "iap.charset",
FT_UINT8, BASE_HEX, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_string,
{ "String", "iap.string",
FT_UINT_STRING, BASE_NONE, NULL, 0x0,
NULL, HFILL }},
{ &hf_iap_invaloctet,
{ "Malformed IAP result: \"", "iap.invaloctet",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }},
{ &hf_iap_invallsap,
{ "Malformed IAP result: \"", "iap.invallsap",
FT_NONE, BASE_NONE, NULL, 0,
NULL, HFILL }}
};
static hf_register_info hf_ttp[] = {
{ &hf_ttp_p,
{ "Parameter Bit", "ttp.p",
FT_BOOLEAN, 8, TFS(&set_notset), TTP_PARAMETERS,
NULL, HFILL }},
{ &hf_ttp_icredit,
{ "Initial Credit", "ttp.icredit",
FT_UINT8, BASE_DEC, NULL, ~TTP_PARAMETERS,
NULL, HFILL }},
{ &hf_ttp_m,
{ "More Bit", "ttp.m",
FT_BOOLEAN, 8, TFS(&set_notset), TTP_MORE,
NULL, HFILL }},
{ &hf_ttp_dcredit,
{ "Delta Credit", "ttp.dcredit",
FT_UINT8, BASE_DEC, NULL, ~TTP_MORE,
NULL, HFILL }}
};
/* Setup protocol subtree arrays */
static gint* ett[] = {
&ett_irlap,
&ett_lap_a,
&ett_lap_c,
&ett_lap_i,
&ett_xid_flags,
&ett_log,
&ett_irlmp,
&ett_lmp_dst,
&ett_lmp_src,
&ett_iap,
&ett_iap_ctl,
&ett_ttp
};
gint* ett_p[MAX_PARAMETERS];
gint* ett_iap_e[MAX_IAP_ENTRIES];
/* Register protocol names and descriptions */
proto_irlap = proto_register_protocol("IrDA Link Access Protocol", "IrLAP", "irlap");
proto_log = proto_register_protocol("Log Message", "Log", "log");
proto_irlmp = proto_register_protocol("IrDA Link Management Protocol", "IrLMP", "irlmp");
proto_iap = proto_register_protocol("Information Access Protocol", "IAP", "iap");
proto_ttp = proto_register_protocol("Tiny Transport Protocol", "TTP", "ttp");
/* Register the dissector */
register_dissector("irda", dissect_irda, proto_irlap);
/* Required function calls to register the header fields */
proto_register_field_array(proto_irlap, hf_lap, array_length(hf_lap));
proto_register_field_array(proto_log, hf_log, array_length(hf_log));
proto_register_field_array(proto_irlmp, hf_lmp, array_length(hf_lmp));
proto_register_field_array(proto_iap, hf_iap, array_length(hf_iap));
proto_register_field_array(proto_ttp, hf_ttp, array_length(hf_ttp));
/* Register subtrees */
proto_register_subtree_array(ett, array_length(ett));
for (i = 0; i < MAX_PARAMETERS; i++)
{
ett_param[i] = -1;
ett_p[i] = &ett_param[i];
}
proto_register_subtree_array(ett_p, MAX_PARAMETERS);
for (i = 0; i < MAX_IAP_ENTRIES; i++)
{
ett_iap_entry[i] = -1;
ett_iap_e[i] = &ett_iap_entry[i];
}
proto_register_subtree_array(ett_iap_e, MAX_IAP_ENTRIES);
irda_address_type = address_type_dissector_register("AT_IRDA", "IRDA Address", irda_addr_to_str, irda_addr_str_len, NULL, irda_col_filter_str, irda_addr_len, NULL, NULL);
}
/* If this dissector uses sub-dissector registration add a registration routine.
This format is required because a script is used to find these routines and
create the code that calls these routines.
*/
void proto_reg_handoff_irda(void)
{
dissector_handle_t irda_handle;
irda_handle = find_dissector("irda");
dissector_add_uint("wtap_encap", WTAP_ENCAP_IRDA, irda_handle);
dissector_add_uint("sll.ltype", LINUX_SLL_P_IRDA_LAP, irda_handle);
}
/*
* Editor modelines - http://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:
*/