587 lines
22 KiB
C
587 lines
22 KiB
C
/* packet-irc.c
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* Copied from packet-tftp.c
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Routines for IRC packet dissection
|
|
*
|
|
* See
|
|
*
|
|
* http://www.irchelp.org/irchelp/rfc/
|
|
*
|
|
* and the RFCs and other documents it mentions, such as RFC 1459, RFCs
|
|
* 2810, 2811, 2812, and 2813,
|
|
*
|
|
* http://www.irchelp.org/irchelp/rfc/ctcpspec.html
|
|
*
|
|
* and
|
|
*
|
|
* http://www.invlogic.com/irc/ctcp.html
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <epan/packet.h>
|
|
#include <epan/expert.h>
|
|
|
|
void proto_register_irc(void);
|
|
void proto_reg_handoff_irc(void);
|
|
|
|
static int proto_irc = -1;
|
|
static int hf_irc_request = -1;
|
|
static int hf_irc_request_prefix = -1;
|
|
static int hf_irc_request_command = -1;
|
|
static int hf_irc_request_command_param = -1;
|
|
static int hf_irc_request_trailer = -1;
|
|
static int hf_irc_response = -1;
|
|
static int hf_irc_response_prefix = -1;
|
|
static int hf_irc_response_command = -1;
|
|
static int hf_irc_response_num_command = -1;
|
|
static int hf_irc_response_command_param = -1;
|
|
static int hf_irc_response_trailer = -1;
|
|
static int hf_irc_ctcp = -1;
|
|
|
|
static gint ett_irc = -1;
|
|
static gint ett_irc_request = -1;
|
|
static gint ett_irc_request_command = -1;
|
|
static gint ett_irc_response = -1;
|
|
static gint ett_irc_response_command = -1;
|
|
|
|
static expert_field ei_irc_missing_end_delimiter = EI_INIT;
|
|
static expert_field ei_irc_numeric_request_command = EI_INIT;
|
|
static expert_field ei_irc_response_command = EI_INIT;
|
|
static expert_field ei_irc_prefix_missing_ending_space = EI_INIT;
|
|
static expert_field ei_irc_request_command = EI_INIT;
|
|
static expert_field ei_irc_tag_data_invalid = EI_INIT;
|
|
|
|
/* This must be a null-terminated string */
|
|
static const guint8 TAG_DELIMITER[] = {0x01, 0x00};
|
|
/* patterns used for tvb_ws_mempbrk_pattern_guint8 */
|
|
static ws_mempbrk_pattern pbrk_tag_delimiter;
|
|
|
|
|
|
#define TCP_PORT_RANGE "6667,57000" /* Not IANA registered */
|
|
|
|
static void
|
|
dissect_irc_tag_data(proto_tree *tree, proto_item *item, tvbuff_t *tvb, int offset, int datalen, packet_info *pinfo, const guint8* command)
|
|
{
|
|
guchar found_start_needle = 0,
|
|
found_end_needle = 0;
|
|
gint tag_start_offset, tag_end_offset;
|
|
|
|
tag_start_offset = tvb_ws_mempbrk_pattern_guint8(tvb, offset, datalen, &pbrk_tag_delimiter, &found_start_needle);
|
|
if (tag_start_offset == -1)
|
|
{
|
|
/* no tag data */
|
|
return;
|
|
}
|
|
|
|
tag_end_offset = tvb_ws_mempbrk_pattern_guint8(tvb, offset, datalen-offset, &pbrk_tag_delimiter, &found_end_needle);
|
|
if (tag_end_offset == -1)
|
|
{
|
|
expert_add_info(pinfo, item, &ei_irc_missing_end_delimiter);
|
|
return;
|
|
}
|
|
|
|
if ((strcmp(command, "NOTICE") != 0) &&
|
|
(strcmp(command, "PRIVMSG") != 0))
|
|
{
|
|
expert_add_info(pinfo, item, &ei_irc_tag_data_invalid);
|
|
}
|
|
|
|
/* Placeholder to call CTCP dissector, strip out delimiter */
|
|
proto_tree_add_item(tree, hf_irc_ctcp, tvb, offset+1, datalen-2, ENC_ASCII|ENC_NA);
|
|
}
|
|
|
|
static void
|
|
dissect_irc_request(proto_tree *tree, tvbuff_t *tvb, packet_info *pinfo, int offset, int linelen)
|
|
{
|
|
proto_tree *request_tree, *command_tree = NULL;
|
|
proto_item *request_item;
|
|
int start_offset = offset;
|
|
int end_offset = start_offset+linelen;
|
|
gint eop_offset = -1,
|
|
eoc_offset = -1,
|
|
eocp_offset,
|
|
tag_start_offset, tag_end_offset;
|
|
const guint8 *str_command;
|
|
guchar found_tag_needle = 0;
|
|
gboolean first_command_param = TRUE;
|
|
|
|
request_item = proto_tree_add_item(tree, hf_irc_request, tvb, offset, linelen, ENC_ASCII|ENC_NA);
|
|
if (linelen <= 0)
|
|
return;
|
|
|
|
request_tree = proto_item_add_subtree(request_item, ett_irc_request );
|
|
|
|
/* Check if message has a prefix */
|
|
if (tvb_get_guint8(tvb, offset) == ':')
|
|
{
|
|
/* find the end of the prefix */
|
|
eop_offset = tvb_find_guint8(tvb, offset+1, linelen-1, ' ');
|
|
if (eop_offset == -1)
|
|
{
|
|
expert_add_info(pinfo, request_item, &ei_irc_prefix_missing_ending_space);
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_item(request_tree, hf_irc_request_prefix, tvb, offset+1, eop_offset-offset-1, ENC_ASCII|ENC_NA);
|
|
offset = eop_offset+1;
|
|
}
|
|
|
|
/* clear out any whitespace before command */
|
|
while(offset < end_offset && tvb_get_guint8(tvb, offset) == ' ')
|
|
{
|
|
offset++;
|
|
}
|
|
if (offset == end_offset)
|
|
{
|
|
expert_add_info(pinfo, request_item, &ei_irc_request_command);
|
|
return;
|
|
}
|
|
|
|
eoc_offset = tvb_find_guint8(tvb, offset, end_offset-offset, ' ');
|
|
if (eoc_offset == -1)
|
|
{
|
|
const guint8* col_str;
|
|
proto_tree_add_item_ret_string(request_tree, hf_irc_request_command, tvb, offset, end_offset-offset, ENC_ASCII|ENC_NA, wmem_packet_scope(), &col_str);
|
|
col_append_fstr( pinfo->cinfo, COL_INFO, " (%s)", col_str);
|
|
|
|
/* Warn if there is a "numeric" command */
|
|
if ((end_offset-offset == 3) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+1))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+2))))
|
|
{
|
|
expert_add_info(pinfo, request_item, &ei_irc_numeric_request_command);
|
|
}
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_item_ret_string(request_tree, hf_irc_request_command, tvb, offset, eoc_offset-offset, ENC_ASCII|ENC_NA, wmem_packet_scope(), &str_command);
|
|
col_append_fstr( pinfo->cinfo, COL_INFO, " (%s)", str_command);
|
|
|
|
/* Warn if there is a "numeric" command */
|
|
if ((eoc_offset-offset == 3) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+1))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+2))))
|
|
{
|
|
expert_add_info(pinfo, request_item, &ei_irc_numeric_request_command);
|
|
}
|
|
|
|
offset = eoc_offset+1;
|
|
|
|
/* clear out any whitespace before command parameter */
|
|
while(offset < end_offset && tvb_get_guint8(tvb, offset) == ' ')
|
|
{
|
|
offset++;
|
|
}
|
|
if (offset == end_offset)
|
|
{
|
|
/* No command parameters */
|
|
return;
|
|
}
|
|
|
|
/* Check if message has a trailer */
|
|
if (tvb_get_guint8(tvb, offset) == ':')
|
|
{
|
|
proto_tree_add_item(request_tree, hf_irc_request_trailer, tvb, offset+1, end_offset-offset-1, ENC_ASCII|ENC_NA);
|
|
dissect_irc_tag_data(request_tree, request_item, tvb, offset+1, end_offset-offset-1, pinfo, str_command);
|
|
return;
|
|
}
|
|
|
|
while(offset < end_offset)
|
|
{
|
|
eocp_offset = tvb_find_guint8(tvb, offset, end_offset-offset, ' ');
|
|
tag_start_offset = tvb_ws_mempbrk_pattern_guint8(tvb, offset, end_offset-offset, &pbrk_tag_delimiter, &found_tag_needle);
|
|
|
|
/* Create subtree when the first parameter is found */
|
|
if (first_command_param)
|
|
{
|
|
command_tree = proto_tree_add_subtree(request_tree, tvb, offset, end_offset-offset,
|
|
ett_irc_request_command, NULL, "Command parameters");
|
|
first_command_param = FALSE;
|
|
}
|
|
|
|
if (((eocp_offset == -1) && (tag_start_offset == -1)) ||
|
|
((eocp_offset != -1) && (tag_start_offset == -1)) ||
|
|
(eocp_offset < tag_start_offset))
|
|
{
|
|
/* regular message should be dissected */
|
|
|
|
if (eocp_offset == -1)
|
|
{
|
|
proto_tree_add_item(command_tree, hf_irc_request_command_param, tvb, offset, end_offset-offset, ENC_ASCII|ENC_NA);
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_item(command_tree, hf_irc_request_command_param, tvb, offset, eocp_offset-offset, ENC_ASCII|ENC_NA);
|
|
offset = eocp_offset+1;
|
|
|
|
/* clear out any whitespace before next command parameter */
|
|
while(offset < end_offset && tvb_get_guint8(tvb, offset) == ' ')
|
|
{
|
|
offset++;
|
|
}
|
|
if (offset == end_offset)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* Check if message has a trailer */
|
|
if (tvb_get_guint8(tvb, offset) == ':')
|
|
{
|
|
proto_tree_add_item(request_tree, hf_irc_request_trailer, tvb, offset+1, end_offset-offset-1, ENC_ASCII|ENC_NA);
|
|
dissect_irc_tag_data(request_tree, request_item, tvb, offset+1, end_offset-offset-1, pinfo, str_command);
|
|
return;
|
|
}
|
|
}
|
|
else if (((eocp_offset == -1) && (tag_start_offset != -1)) ||
|
|
(eocp_offset > tag_start_offset))
|
|
{
|
|
/* tag data dissected */
|
|
|
|
found_tag_needle = 0;
|
|
tag_end_offset = tvb_ws_mempbrk_pattern_guint8(tvb, tag_start_offset+1, end_offset-tag_start_offset-1, &pbrk_tag_delimiter, &found_tag_needle);
|
|
if (tag_end_offset == -1)
|
|
{
|
|
expert_add_info(pinfo, request_item, &ei_irc_missing_end_delimiter);
|
|
return;
|
|
}
|
|
|
|
dissect_irc_tag_data(request_tree, request_item, tvb, tag_start_offset, tag_end_offset-tag_start_offset, pinfo, str_command);
|
|
offset = tag_end_offset+1;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_irc_response(proto_tree *tree, tvbuff_t *tvb, packet_info *pinfo, int offset, int linelen)
|
|
{
|
|
proto_tree *response_tree, *command_tree = NULL;
|
|
proto_item *response_item, *hidden_item;
|
|
int start_offset = offset;
|
|
int end_offset = start_offset+linelen;
|
|
gint eop_offset = -1,
|
|
eoc_offset = -1,
|
|
eocp_offset,
|
|
tag_start_offset, tag_end_offset;
|
|
const guint8* str_command;
|
|
guint16 num_command;
|
|
guchar found_tag_needle = 0;
|
|
gboolean first_command_param = TRUE;
|
|
|
|
response_item = proto_tree_add_item(tree, hf_irc_response, tvb, offset, linelen, ENC_ASCII|ENC_NA);
|
|
if (linelen <= 0)
|
|
return;
|
|
|
|
response_tree = proto_item_add_subtree(response_item, ett_irc_response );
|
|
|
|
/* Check if message has a prefix */
|
|
if (tvb_get_guint8(tvb, offset) == ':')
|
|
{
|
|
/* find the end of the prefix */
|
|
eop_offset = tvb_find_guint8(tvb, offset+1, linelen-1, ' ');
|
|
if (eop_offset == -1)
|
|
{
|
|
expert_add_info(pinfo, response_item, &ei_irc_prefix_missing_ending_space);
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_item(response_tree, hf_irc_response_prefix, tvb, offset+1, eop_offset-offset-1, ENC_ASCII|ENC_NA);
|
|
offset = eop_offset+1;
|
|
}
|
|
|
|
/* clear out any whitespace before command */
|
|
while(offset < end_offset && tvb_get_guint8(tvb, offset) == ' ')
|
|
{
|
|
offset++;
|
|
}
|
|
if (offset == end_offset)
|
|
{
|
|
expert_add_info(pinfo, response_item, &ei_irc_response_command);
|
|
return;
|
|
}
|
|
|
|
eoc_offset = tvb_find_guint8(tvb, offset, end_offset-offset, ' ');
|
|
if (eoc_offset == -1)
|
|
{
|
|
const guint8* col_str;
|
|
proto_tree_add_item_ret_string(response_tree, hf_irc_response_command, tvb, offset, end_offset-offset, ENC_ASCII|ENC_NA, wmem_packet_scope(), &col_str);
|
|
col_append_fstr( pinfo->cinfo, COL_INFO, " (%s)", col_str);
|
|
|
|
/* if response command is numeric, allow it to be filtered as an integer */
|
|
if ((end_offset-offset == 3) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+1))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+2))))
|
|
{
|
|
num_command = ((tvb_get_guint8(tvb, offset)-0x30)*100) + ((tvb_get_guint8(tvb, offset+1)-0x30)*10) + (tvb_get_guint8(tvb, offset+2)-0x30);
|
|
hidden_item = proto_tree_add_uint(response_tree, hf_irc_response_num_command, tvb, offset, end_offset-offset, num_command);
|
|
PROTO_ITEM_SET_HIDDEN(hidden_item);
|
|
}
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_item_ret_string(response_tree, hf_irc_response_command, tvb, offset, eoc_offset-offset, ENC_ASCII|ENC_NA, wmem_packet_scope(), &str_command);
|
|
col_append_fstr( pinfo->cinfo, COL_INFO, " (%s)", str_command);
|
|
|
|
/* if response command is numeric, allow it to be filtered as an integer */
|
|
if ((eoc_offset-offset == 3) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+1))) &&
|
|
(g_ascii_isdigit(tvb_get_guint8(tvb, offset+2))))
|
|
{
|
|
num_command = ((tvb_get_guint8(tvb, offset)-0x30)*100) + ((tvb_get_guint8(tvb, offset+1)-0x30)*10) + (tvb_get_guint8(tvb, offset+2)-0x30);
|
|
hidden_item = proto_tree_add_uint(response_tree, hf_irc_response_num_command, tvb, offset, eoc_offset-offset, num_command);
|
|
PROTO_ITEM_SET_HIDDEN(hidden_item);
|
|
}
|
|
|
|
offset = eoc_offset+1;
|
|
|
|
/* clear out any whitespace before command parameter */
|
|
while(offset < end_offset && tvb_get_guint8(tvb, offset) == ' ')
|
|
{
|
|
offset++;
|
|
}
|
|
if (offset == end_offset)
|
|
{
|
|
/* No command parameters */
|
|
return;
|
|
}
|
|
|
|
/* Check if message has a trailer */
|
|
if (tvb_get_guint8(tvb, offset) == ':')
|
|
{
|
|
proto_tree_add_item(response_tree, hf_irc_response_trailer, tvb, offset+1, end_offset-offset-1, ENC_ASCII|ENC_NA);
|
|
dissect_irc_tag_data(response_tree, response_item, tvb, offset+1, end_offset-offset-1, pinfo, str_command);
|
|
return;
|
|
}
|
|
|
|
while(offset < end_offset)
|
|
{
|
|
eocp_offset = tvb_find_guint8(tvb, offset, end_offset-offset, ' ');
|
|
tag_start_offset = tvb_ws_mempbrk_pattern_guint8(tvb, offset, end_offset-offset, &pbrk_tag_delimiter, &found_tag_needle);
|
|
|
|
/* Create subtree when the first parameter is found */
|
|
if (first_command_param)
|
|
{
|
|
command_tree = proto_tree_add_subtree(response_tree, tvb, offset, end_offset-offset,
|
|
ett_irc_response_command , NULL, "Command parameters");
|
|
first_command_param = FALSE;
|
|
}
|
|
|
|
if ((tag_start_offset == -1) || (eocp_offset < tag_start_offset))
|
|
{
|
|
/* regular message should be dissected */
|
|
|
|
if (eocp_offset == -1)
|
|
{
|
|
proto_tree_add_item(command_tree, hf_irc_response_command_param, tvb, offset, end_offset-offset, ENC_ASCII|ENC_NA);
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_item(command_tree, hf_irc_response_command_param, tvb, offset, eocp_offset-offset, ENC_ASCII|ENC_NA);
|
|
offset = eocp_offset+1;
|
|
|
|
/* clear out any whitespace before next command parameter */
|
|
while(offset < end_offset && tvb_get_guint8(tvb, offset) == ' ')
|
|
{
|
|
offset++;
|
|
}
|
|
if (offset == end_offset)
|
|
{
|
|
break;
|
|
}
|
|
|
|
/* Check if message has a trailer */
|
|
if (tvb_get_guint8(tvb, offset) == ':')
|
|
{
|
|
proto_tree_add_item(response_tree, hf_irc_response_trailer, tvb, offset+1, end_offset-offset-1, ENC_ASCII|ENC_NA);
|
|
dissect_irc_tag_data(response_tree, response_item, tvb, offset+1, end_offset-offset-1, pinfo, str_command);
|
|
return;
|
|
}
|
|
}
|
|
else if ((eocp_offset == -1) || (eocp_offset > tag_start_offset))
|
|
{
|
|
/* tag data dissected */
|
|
|
|
found_tag_needle = 0;
|
|
tag_end_offset = tvb_ws_mempbrk_pattern_guint8(tvb, tag_start_offset+1, end_offset-tag_start_offset-1, &pbrk_tag_delimiter, &found_tag_needle);
|
|
if (tag_end_offset == -1)
|
|
{
|
|
expert_add_info(pinfo, response_item, &ei_irc_missing_end_delimiter);
|
|
return;
|
|
}
|
|
|
|
dissect_irc_tag_data(response_tree, response_item, tvb, tag_start_offset, tag_end_offset-tag_start_offset, pinfo, str_command);
|
|
offset = tag_end_offset+1;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
dissect_irc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
|
|
{
|
|
proto_tree *irc_tree, *ti;
|
|
gint offset = 0;
|
|
gint next_offset;
|
|
int linelen;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IRC");
|
|
|
|
col_set_str(pinfo->cinfo, COL_INFO,
|
|
(pinfo->match_uint == pinfo->destport) ? "Request" : "Response");
|
|
|
|
ti = proto_tree_add_item(tree, proto_irc, tvb, 0, -1, ENC_NA);
|
|
irc_tree = proto_item_add_subtree(ti, ett_irc);
|
|
|
|
/*
|
|
* Process the packet data, a line at a time.
|
|
*/
|
|
while (tvb_offset_exists(tvb, offset))
|
|
{
|
|
/*
|
|
* Find the end of the line.
|
|
*/
|
|
linelen = tvb_find_line_end(tvb, offset, -1, &next_offset, FALSE);
|
|
if (next_offset == offset) {
|
|
/*
|
|
* XXX - we really want the "show data a
|
|
* line at a time" loops in various
|
|
* dissectors to do reassembly and to
|
|
* throw an exception if there's no
|
|
* line ending in the current packet
|
|
* and we're not doing reassembly.
|
|
*/
|
|
break;
|
|
}
|
|
|
|
if (linelen != 0)
|
|
{
|
|
if (pinfo->match_uint == pinfo->destport)
|
|
{
|
|
dissect_irc_request(irc_tree, tvb, pinfo, offset, linelen);
|
|
}
|
|
else
|
|
{
|
|
dissect_irc_response(irc_tree, tvb, pinfo, offset, linelen);
|
|
}
|
|
}
|
|
offset = next_offset;
|
|
}
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
void
|
|
proto_register_irc(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_irc_response, { "Response", "irc.response", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Line of response message", HFILL }},
|
|
|
|
{ &hf_irc_request, { "Request", "irc.request", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Line of request message", HFILL }},
|
|
|
|
{ &hf_irc_request_prefix, { "Prefix", "irc.request.prefix", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Request prefix", HFILL }},
|
|
|
|
{ &hf_irc_request_command, { "Command", "irc.request.command", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Request command", HFILL }},
|
|
|
|
{ &hf_irc_request_command_param, { "Parameter", "irc.request.command_parameter", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Request command parameter", HFILL }},
|
|
|
|
{ &hf_irc_request_trailer, { "Trailer", "irc.request.trailer", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Request trailer", HFILL }},
|
|
|
|
{ &hf_irc_response_prefix, { "Prefix", "irc.response.prefix", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Response prefix", HFILL }},
|
|
|
|
{ &hf_irc_response_command, { "Command", "irc.response.command", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Response command", HFILL }},
|
|
|
|
{ &hf_irc_response_num_command, { "Command", "irc.response.num_command", FT_UINT16, BASE_DEC,
|
|
NULL, 0x0, "Response (numeric) command", HFILL }},
|
|
|
|
{ &hf_irc_response_command_param, { "Parameter", "irc.response.command_parameter", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Response command parameter", HFILL }},
|
|
|
|
{ &hf_irc_response_trailer, { "Trailer", "irc.response.trailer", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Response trailer", HFILL }},
|
|
|
|
{ &hf_irc_ctcp, { "CTCP Data", "irc.ctcp", FT_STRING, STR_ASCII,
|
|
NULL, 0x0, "Placeholder to dissect CTCP data", HFILL }}
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_irc,
|
|
&ett_irc_request,
|
|
&ett_irc_request_command,
|
|
&ett_irc_response,
|
|
&ett_irc_response_command
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_irc_missing_end_delimiter, { "irc.missing_end_delimiter", PI_MALFORMED, PI_ERROR, "Missing ending tag delimiter (0x01)", EXPFILL }},
|
|
{ &ei_irc_tag_data_invalid, { "irc.tag_data_invalid", PI_PROTOCOL, PI_WARN, "Tag data outside of NOTICE or PRIVMSG command", EXPFILL }},
|
|
{ &ei_irc_prefix_missing_ending_space, { "irc.prefix_missing_ending_space", PI_MALFORMED, PI_ERROR, "Prefix missing ending <space>", EXPFILL }},
|
|
{ &ei_irc_request_command, { "irc.request.command.missing", PI_MALFORMED, PI_ERROR, "Request has no command", EXPFILL }},
|
|
{ &ei_irc_numeric_request_command, { "irc.request.command.numeric", PI_PROTOCOL, PI_WARN, "Numeric command not allowed in request", EXPFILL }},
|
|
{ &ei_irc_response_command, { "irc.response.command.missing", PI_MALFORMED, PI_ERROR, "Response has no command", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_irc;
|
|
|
|
proto_irc = proto_register_protocol("Internet Relay Chat", "IRC", "irc");
|
|
proto_register_field_array(proto_irc, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_irc = expert_register_protocol(proto_irc);
|
|
expert_register_field_array(expert_irc, ei, array_length(ei));
|
|
|
|
/* compile patterns */
|
|
ws_mempbrk_compile(&pbrk_tag_delimiter, TAG_DELIMITER);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_irc(void)
|
|
{
|
|
dissector_handle_t irc_handle;
|
|
|
|
irc_handle = create_dissector_handle(dissect_irc, proto_irc);
|
|
dissector_add_uint_range_with_preference("tcp.port", TCP_PORT_RANGE, irc_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:
|
|
*/
|