wireshark/epan/dissectors/packet-mq-pcf.c

736 lines
29 KiB
C

/* packet-mq-pcf.c
* Routines for IBM WebSphere MQ PCF packet dissection
*
* metatech <metatech@flashmail.com>
* robionekenobi <robionekenobi@bluewin.ch>
*
* $Id$
*
* 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.
*/
/* MQ PCF in a nutshell
*
* The MQ Programmable Command Formats API allows remotely configuring a queue manager.
*
* MQ PCF documentation is called "WebSphere MQ Programmable Command Formats and Administration Interface"
*/
#include "config.h"
#include <string.h>
#include <math.h>
#include <glib.h>
#include <epan/packet.h>
#include <epan/proto.h>
#include <epan/expert.h>
#include <epan/prefs.h>
#include <epan/value_string.h>
#include <epan/strutil.h>
#include "packet-mq.h"
#include "wmem/wmem.h"
#define PCF_MAX_PARM 999
#define PCF_MAX_LIST 20000
guint mq_pcf_maxprm = PCF_MAX_PARM;
guint mq_pcf_maxlst = PCF_MAX_LIST;
static int proto_mqpcf = -1;
static int hf_mqpcf_cfh_type = -1;
static int hf_mqpcf_cfh_length = -1;
static int hf_mqpcf_cfh_version = -1;
static int hf_mqpcf_cfh_command = -1;
static int hf_mqpcf_cfh_MsgSeqNbr = -1;
static int hf_mqpcf_cfh_control = -1;
static int hf_mqpcf_cfh_compcode = -1;
static int hf_mqpcf_cfh_reason = -1;
static int hf_mqpcf_cfh_ParmCount = -1;
static int hf_mq_pcf_prmtyp = -1;
static int hf_mq_pcf_prmlen = -1;
static int hf_mq_pcf_prmid = -1;
static int hf_mq_pcf_prmidnovals = -1;
static int hf_mq_pcf_filterop = -1;
static int hf_mq_pcf_prmccsid = -1;
static int hf_mq_pcf_prmstrlen = -1;
static int hf_mq_pcf_prmcount = -1;
static int hf_mq_pcf_prmunused = -1;
static int hf_mq_pcf_string = -1;
static int hf_mq_pcf_stringlist = -1;
static int hf_mq_pcf_int = -1;
static int hf_mq_pcf_intlist = -1;
static int hf_mq_pcf_bytestring = -1;
static int hf_mq_pcf_int64 = -1;
static int hf_mq_pcf_int64list = -1;
static expert_field ei_mq_pcf_prmln0 = EI_INIT;
static expert_field ei_mq_pcf_MaxInt = EI_INIT;
static expert_field ei_mq_pcf_MaxStr = EI_INIT;
static expert_field ei_mq_pcf_MaxI64 = EI_INIT;
static expert_field ei_mq_pcf_MaxPrm = EI_INIT;
static expert_field ei_mq_pcf_PrmCnt = EI_INIT;
static gint ett_mqpcf_prm = -1;
static gint ett_mqpcf = -1;
static gint ett_mqpcf_cfh = -1;
#define MQ_TEXT_CFH "MQ Command Format Header"
guint32 dissect_mqpcf_getDigits(guint uCnt)
{
return (guint) log10(uCnt) + 1;
}
guint8 *dissect_mqpcf_parm_getintval(guint uPrm, guint uVal)
{
value_string *pVs;
pVs = (value_string *)try_val_to_str(uPrm, GET_VALSV(MQCFINT_Parse));
if (pVs)
{
return (guint8 *)try_val_to_str(uVal, pVs);
}
return NULL;
}
void dissect_mqpcf_parm_int(tvbuff_t *tvb, proto_tree *tree, guint offset, guint uPrm,
guint uVal, int hfindex, guint iCnt, guint iMaxCnt, guint iDigit, gboolean bParse)
{
header_field_info *hfinfo;
guint8 *pVal = NULL;
if (bParse)
pVal = dissect_mqpcf_parm_getintval(uPrm, uVal);
hfinfo = proto_registrar_get_nth(hfindex);
if (iMaxCnt > 1)
{
if (pVal)
{
proto_tree_add_int_format(tree, hfindex, tvb, offset, 4, uVal,
"%s[%*d]: %8d-%s", hfinfo->name, iDigit, iCnt, uVal, pVal);
}
else
{
proto_tree_add_int_format(tree, hfindex, tvb, offset, 4, uVal,
"%s[%*d]: %8x-%d", hfinfo->name, iDigit, iCnt, uVal, uVal);
}
}
else
{
if (pVal)
{
proto_tree_add_int_format_value(tree, hfindex, tvb, offset, 4, uVal,
"%8d-%s", uVal, pVal);
}
else
{
proto_tree_add_int_format_value(tree, hfindex, tvb, offset, 4, uVal,
"%8x-%d", uVal, uVal);
}
}
}
static void dissect_mqpcf_parm(tvbuff_t *tvb, packet_info *pinfo, proto_tree *mq_tree,
guint offset, guint32 uCount, guint bLittleEndian, gboolean bParse)
{
guint32 u = 0;
guint32 tOfs = 0;
guint32 uLenF;
char strPrm[256];
guint32 uTyp;
guint32 uLen = 0;
guint32 uPrm;
guint32 uCnt;
guint32 uCCS;
guint32 uSLn;
guint32 uVal;
guint64 uVal64;
guint32 uDig;
const char sMaxLst[] = " Max # of List reached. DECODE interrupted (actual %u of %u)";
const char sPrmLn0[] = " MQPrm[%3u] has a zero length. DECODE Failed (MQPrm Count: %u)";
const char sMaxPrm[] = " Max # of Parm reached. DECODE interrupted (actual %u of %u)";
const char sPrmCnt[] = " Cnt=-1 and Length(%u) < 16. DECODE interrupted for elem %u";
proto_item *ti = NULL;
proto_tree *tree = NULL;
if (uCount == (guint32)-1)
{
guint32 xOfs = offset;
uCnt = 0;
while (tvb_length_remaining(tvb, xOfs) >= 16)
{
uLen = tvb_get_guint32_endian(tvb, xOfs + 4, bLittleEndian);
if (uLen < 16)
{
ti = proto_tree_add_text(mq_tree, tvb, xOfs, 16, sPrmCnt, uLen, uCnt);
expert_add_info(pinfo, ti, &ei_mq_pcf_PrmCnt);
break;
}
uCnt++;
xOfs += uLen;
}
uCount = uCnt;
}
uDig = dissect_mqpcf_getDigits(uCount);
for (u = 0; u < uCount && u < mq_pcf_maxprm; u++)
{
tOfs = offset;
uTyp = tvb_get_guint32_endian(tvb, offset , bLittleEndian);
uLen = tvb_get_guint32_endian(tvb, offset + 4, bLittleEndian);
if (uLen == 0)
{
ti = proto_tree_add_text(mq_tree, tvb, offset, 12, sPrmLn0, u+1, uCount);
expert_add_info(pinfo, ti, &ei_mq_pcf_prmln0);
u = uCount;
break;
}
uPrm = tvb_get_guint32_endian(tvb, offset + 8, bLittleEndian);
uLenF = 12;
if (bParse)
g_snprintf(strPrm, (gulong)sizeof(strPrm) - 1, " %-s[%*u] {%2d-%-15.15s} %8x/%5d-%-30.30s",
"MQPrm", uDig, u+1,
uTyp, val_to_str_const(uTyp, GET_VALSV(PrmTyp), " Unknown") + 6,
uPrm, uPrm, val_to_str_const(uPrm, GET_VALSV(PrmId), "Unknown"));
else
g_snprintf(strPrm, (gulong)sizeof(strPrm) - 1, " %-s[%*u] {%2d-%-15.15s} %8x/%5d",
"XtraD", uDig, u+1,
uTyp, val_to_str_const(uTyp, GET_VALSV(PrmTyp), " Unknown") + 6,
uPrm, uPrm);
switch (uTyp)
{
case MQ_MQCFT_NONE:
break;
case MQ_MQCFT_COMMAND:
break;
case MQ_MQCFT_RESPONSE:
break;
case MQ_MQCFT_INTEGER:
{
guint8 *pVal = NULL;
uVal = tvb_get_guint32_endian(tvb, offset + uLenF, bLittleEndian);
if (bParse)
pVal = dissect_mqpcf_parm_getintval(uPrm, uVal);
if (pVal)
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %d-%s",
strPrm, uVal, pVal);
}
else
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %8x-%d",
strPrm, uVal, uVal);
}
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp, tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen, tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
dissect_mqpcf_parm_int(tvb, tree, offset+uLenF, uPrm, uVal, hf_mq_pcf_int, 0, 0, 0, bParse);
}
break;
case MQ_MQCFT_STRING:
{
guint8 *sStr;
uCCS = tvb_get_guint32_endian(tvb, offset + uLenF, bLittleEndian);
uSLn = tvb_get_guint32_endian(tvb, offset + uLenF + 4, bLittleEndian);
sStr = tvb_get_string_enc(wmem_packet_scope(), tvb, offset + uLenF + 8,
uSLn, (uCCS != 500) ? ENC_ASCII : ENC_EBCDIC);
if (*sStr)
strip_trailing_blanks(sStr, uSLn);
if (*sStr)
format_text_chr(sStr, strlen(sStr), '.');
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %s", strPrm, sStr);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmccsid , tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmstrlen, tvb, offset + 16, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_string, tvb, offset + uLenF + 8, uSLn, (uCCS != 500) ? ENC_ASCII : ENC_EBCDIC);
}
break;
case MQ_MQCFT_INTEGER_LIST:
{
guint32 u2;
guint32 uDigit = 0;
uCnt = tvb_get_guint32_endian(tvb, offset+uLenF, bLittleEndian);
uDigit = dissect_mqpcf_getDigits(uCnt);
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s Cnt(%d)", strPrm, uCnt);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmcount, tvb, offset + 12, 4, bLittleEndian);
offset += uLenF+4;
for (u2 = 0; u2 < uCnt && u2 < mq_pcf_maxlst; u2++)
{
uVal = tvb_get_guint32_endian(tvb, offset, bLittleEndian);
dissect_mqpcf_parm_int(tvb, tree, offset, uPrm, uVal, hf_mq_pcf_intlist, u2+1, uCnt, uDigit, bParse);
offset += 4;
}
if (u2 != uCnt)
{
ti = proto_tree_add_text(tree, tvb, offset, uLen, sMaxLst, u2, uCnt);
expert_add_info(pinfo, ti, &ei_mq_pcf_MaxInt);
}
}
break;
case MQ_MQCFT_STRING_LIST:
{
guint32 u2;
guint32 uDigit;
guint8 *sStr;
header_field_info *hfinfo;
hfinfo = proto_registrar_get_nth(hf_mq_pcf_stringlist);
uCCS = tvb_get_guint32_endian(tvb, offset + uLenF , bLittleEndian);
uCnt = tvb_get_guint32_endian(tvb, offset + uLenF + 4, bLittleEndian);
uSLn = tvb_get_guint32_endian(tvb, offset + uLenF + 8, bLittleEndian);
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s Cnt(%d)", strPrm, uCnt);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmccsid , tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmcount , tvb, offset + 16, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmstrlen, tvb, offset + 20, 4, bLittleEndian);
uDigit = dissect_mqpcf_getDigits(uCnt);
offset += uLenF+12;
for (u2 = 0; u2 < uCnt && u2 < mq_pcf_maxlst; u2++)
{
sStr = tvb_get_string_enc(wmem_packet_scope(), tvb, offset,
uSLn, (uCCS != 500) ? ENC_ASCII : ENC_EBCDIC);
if (*sStr)
strip_trailing_blanks(sStr, uSLn);
if (*sStr)
format_text_chr(sStr, strlen(sStr), '.');
proto_tree_add_string_format(tree, hf_mq_pcf_stringlist, tvb, offset, uSLn, sStr,
"%s[%*d]: %s", hfinfo->name, uDigit, u2+1, sStr);
offset += uSLn;
}
if (u2 != uCnt)
{
ti = proto_tree_add_text(tree, tvb, offset, uLen, sMaxLst, u2, uCnt);
expert_add_info(pinfo, ti, &ei_mq_pcf_MaxStr);
}
}
break;
case MQ_MQCFT_EVENT:
break;
case MQ_MQCFT_USER:
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s", strPrm);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_bytestring, tvb, offset + 8, uLen - 8, bLittleEndian);
}
break;
case MQ_MQCFT_BYTE_STRING:
{
uSLn = tvb_get_guint32_endian(tvb, offset + uLenF, bLittleEndian);
if (uSLn)
{
guint8 *sStrA = format_text_chr(tvb_get_string_enc(wmem_packet_scope(), tvb, offset + uLenF + 4, uSLn, ENC_ASCII) , uSLn, '.');
guint8 *sStrE = format_text_chr(tvb_get_string_enc(wmem_packet_scope(), tvb, offset + uLenF + 4, uSLn, ENC_EBCDIC), uSLn, '.');
if (uSLn > 35)
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s [Truncated] A(%-.35s) E(%-.35s)", strPrm, sStrA, sStrE);
}
else
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s A(%s) E(%s)", strPrm, sStrA, sStrE);
}
}
else
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s <MISSING>", strPrm);
}
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmstrlen, tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_bytestring, tvb, offset + uLenF + 4 , uSLn, bLittleEndian);
}
break;
case MQ_MQCFT_TRACE_ROUTE:
break;
case MQ_MQCFT_REPORT:
break;
case MQ_MQCFT_INTEGER_FILTER:
{
guint32 uOpe;
uOpe = tvb_get_guint32_endian(tvb, offset + uLenF , bLittleEndian);
uVal = tvb_get_guint32_endian(tvb, offset + uLenF + 4, bLittleEndian);
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %s %d",
strPrm, val_to_str(uOpe, GET_VALSV(FilterOP), " Unknown (0x%02x)")+7, uVal);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_filterop , tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_int, tvb, offset + uLenF + 4, 4, bLittleEndian);
}
break;
case MQ_MQCFT_STRING_FILTER:
{
guint8 *sStr;
guint32 uOpe;
uOpe = tvb_get_guint32_endian(tvb, offset + uLenF, bLittleEndian);
uCCS = tvb_get_guint32_endian(tvb, offset + uLenF + 4, bLittleEndian);
uSLn = tvb_get_guint32_endian(tvb, offset + uLenF + 8, bLittleEndian);
sStr = format_text_chr(tvb_get_string_enc(wmem_packet_scope(), tvb, offset + uLenF + 12, uSLn, (uCCS != 500) ? ENC_ASCII : ENC_EBCDIC), uSLn, '.');
strip_trailing_blanks(sStr, uSLn);
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %s %s",
strPrm, val_to_str(uOpe, GET_VALSV(FilterOP), " Unknown (0x%02x)")+7, sStr);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_filterop , tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmccsid , tvb, offset + 16, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmstrlen, tvb, offset + 20, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_string, tvb, offset + uLenF + 12, uSLn, (uCCS != 500) ? ENC_ASCII : ENC_EBCDIC);
}
break;
case MQ_MQCFT_BYTE_STRING_FILTER:
{
guint32 uOpe;
uOpe = tvb_get_guint32_endian(tvb, offset + uLenF, bLittleEndian);
uSLn = tvb_get_guint32_endian(tvb, offset + uLenF + 4, bLittleEndian);
if (uSLn)
{
guint8 *sStrA = format_text_chr(tvb_get_string_enc(wmem_packet_scope(), tvb, offset + uLenF + 8, uSLn, ENC_ASCII), uSLn, '.');
guint8 *sStrE = format_text_chr(tvb_get_string_enc(wmem_packet_scope(), tvb, offset + uLenF + 8, uSLn, ENC_EBCDIC), uSLn, '.');
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %s A(%s) E(%s)",
strPrm, val_to_str(uOpe, GET_VALSV(FilterOP), " Unknown (0x%02x)")+7, sStrA, sStrE);
}
else
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %s <MISSING>",
strPrm, val_to_str(uOpe, GET_VALSV(FilterOP), " Unknown (0x%02x)")+7);
}
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_filterop , tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmstrlen, tvb, offset + 16, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_bytestring, tvb, offset + uLenF + 8 , uSLn, bLittleEndian);
}
break;
case MQ_MQCFT_COMMAND_XR:
break;
case MQ_MQCFT_XR_MSG:
break;
case MQ_MQCFT_XR_ITEM:
break;
case MQ_MQCFT_XR_SUMMARY:
break;
case MQ_MQCFT_GROUP:
break;
case MQ_MQCFT_STATISTICS:
break;
case MQ_MQCFT_ACCOUNTING:
break;
case MQ_MQCFT_INTEGER64:
{
uVal64 = tvb_get_guint64_endian(tvb, offset + uLenF + 4, bLittleEndian);
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s %" G_GINT64_MODIFIER "x (%" G_GINT64_MODIFIER "d)",
strPrm, uVal64, uVal64);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmunused, tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_int64, tvb, offset + uLenF + 4, 8, bLittleEndian);
}
break;
case MQ_MQCFT_INTEGER64_LIST:
{
guint32 u2;
guint32 uDigit;
header_field_info *hfinfo;
hfinfo = proto_registrar_get_nth(hf_mq_pcf_int64list);
uCnt = tvb_get_guint32_endian(tvb, offset + uLenF, bLittleEndian);
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, "%s Cnt(%d)", strPrm, uCnt);
tree = proto_item_add_subtree(ti, ett_mqpcf_prm);
uDigit = dissect_mqpcf_getDigits(uCnt);
proto_tree_add_item(tree, hf_mq_pcf_prmtyp , tvb, offset , 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmlen , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(tree, (bParse) ? hf_mq_pcf_prmid : hf_mq_pcf_prmidnovals, tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(tree, hf_mq_pcf_prmcount, tvb, offset + 12, 4, bLittleEndian);
offset += uLenF + 4;
for (u2 = 0; u2 < uCnt && u2 < mq_pcf_maxlst; u2++)
{
uVal64 = tvb_get_guint64_endian(tvb, offset, bLittleEndian);
proto_tree_add_int64_format(tree, hf_mq_pcf_int64list, tvb, offset, 8, uVal64,
"%s[%*d]: %" G_GINT64_MODIFIER "d", hfinfo->name, uDigit, u2+1, uVal64);
offset += 8;
}
if (u2 != uCnt)
{
ti = proto_tree_add_text(tree, tvb, offset, uLen, sMaxLst, u2, uCnt);
expert_add_info(pinfo, ti, &ei_mq_pcf_MaxI64);
}
}
break;
}
offset = tOfs+uLen;
}
if (u != uCount)
{
ti = proto_tree_add_text(mq_tree, tvb, offset, uLen, sMaxPrm, u, uCount);
expert_add_info(pinfo, ti, &ei_mq_pcf_MaxPrm);
}
}
static void dissect_mqpcf(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, mq_parm_t* p_mq_parm)
{
gint offset = 0;
gboolean bLittleEndian;
bLittleEndian = ((p_mq_parm->mq_cur_ccsid.encod & MQ_MQENC_INTEGER_MASK) == MQ_MQENC_INTEGER_REVERSED) ? ENC_LITTLE_ENDIAN : ENC_BIG_ENDIAN;
if (tvb_length(tvb) >= 36)
{
gint iSizeMQCFH = 36;
guint32 iCommand = tvb_get_guint32_endian(tvb, offset + 12, bLittleEndian);
if (tree)
{
proto_item *ti;
proto_tree *mq_tree;
proto_tree *mqroot_tree;
char sTmp[256];
guint32 uCnt;
guint32 uTyp;
guint32 uCmd;
guint32 uCC;
guint32 uRC;
uTyp = tvb_get_guint32_endian(tvb, offset , bLittleEndian);
uCmd = tvb_get_guint32_endian(tvb, offset + 12, bLittleEndian);
uCC = tvb_get_guint32_endian(tvb, offset + 24, bLittleEndian);
uRC = tvb_get_guint32_endian(tvb, offset + 28, bLittleEndian);
uCnt = tvb_get_guint32_endian(tvb, offset + 32, bLittleEndian);
if (uCC || uRC)
{
g_snprintf(sTmp, (gulong)sizeof(sTmp)-1, " %-s [%d-%s] {%d-%s} PrmCnt(%d) CC(%d-%s) RC(%d-%s)",
MQ_TEXT_CFH,
uTyp, val_to_str_const(uTyp, GET_VALSV(mqcft), "Unknown"),
uCmd, val_to_str_const(uCmd, GET_VALSV(mqcmd), "Unknown"),
uCnt,
uCC, val_to_str_const(uCC, GET_VALSV(mqcc), "Unknown"),
uRC, val_to_str_const(uRC, GET_VALSV(mqrc), "Unknown"));
}
else
{
g_snprintf(sTmp, (gulong)sizeof(sTmp)-1, " %-s [%d-%s] {%d-%s} PrmCnt(%d)",
MQ_TEXT_CFH,
uTyp, val_to_str_const(uTyp, GET_VALSV(mqcft), "Unknown"),
uCmd, val_to_str_const(uCmd, GET_VALSV(mqcmd), "Unknown"),
uCnt);
}
ti = proto_tree_add_item(tree, proto_mqpcf, tvb, offset, -1, ENC_NA);
proto_item_append_text(ti, " (%s)", val_to_str(iCommand, GET_VALSV(mqcmd), "Unknown (0x%02x)"));
mqroot_tree = proto_item_add_subtree(ti, ett_mqpcf);
ti = proto_tree_add_text(mqroot_tree, tvb, offset, iSizeMQCFH, "%s", sTmp);
mq_tree = proto_item_add_subtree(ti, ett_mqpcf_cfh);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_type , tvb, offset + 0, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_length , tvb, offset + 4, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_version , tvb, offset + 8, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_command , tvb, offset + 12, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_MsgSeqNbr, tvb, offset + 16, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_control , tvb, offset + 20, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_compcode , tvb, offset + 24, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_reason , tvb, offset + 28, 4, bLittleEndian);
proto_tree_add_item(mq_tree, hf_mqpcf_cfh_ParmCount, tvb, offset + 32, 4, bLittleEndian);
dissect_mqpcf_parm(tvb, pinfo, mqroot_tree, offset + iSizeMQCFH, uCnt, bLittleEndian, TRUE);
}
}
}
static gboolean dissect_mqpcf_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
if (tvb_length(tvb) >= 36)
{
mq_parm_t *p_mq_parm = (mq_parm_t *)data;
if (strncmp((const char*)p_mq_parm->mq_format, MQ_MQFMT_ADMIN, 8) == 0
|| strncmp((const char*)p_mq_parm->mq_format, MQ_MQFMT_EVENT, 8) == 0
|| strncmp((const char*)p_mq_parm->mq_format, MQ_MQFMT_PCF, 8) == 0)
{
/* Dissect the packet */
dissect_mqpcf(tvb, pinfo, tree, p_mq_parm);
return TRUE;
}
if (strncmp((const char *)p_mq_parm->mq_format, "LPOO", 4) == 0)
{
gboolean bLittleEndian;
bLittleEndian = ((p_mq_parm->mq_cur_ccsid.encod & MQ_MQENC_INTEGER_MASK) == MQ_MQENC_INTEGER_REVERSED) ? ENC_LITTLE_ENDIAN:ENC_BIG_ENDIAN;
dissect_mqpcf_parm(tvb, pinfo, tree, 0, (guint32)-1, bLittleEndian, FALSE);
return TRUE;
}
}
return FALSE;
}
void proto_register_mqpcf(void)
{
expert_module_t *expert_mqpcf;
static hf_register_info hf[] =
{
{ &hf_mqpcf_cfh_type , { "Type.....", "mqpcf.cfh.type", FT_UINT32, BASE_DEC, VALS(&GET_VALSV(mqcft)), 0x0, "CFH type", HFILL }},
{ &hf_mqpcf_cfh_length , { "Length...", "mqpcf.cfh.length", FT_UINT32, BASE_DEC, NULL, 0x0, "CFH length", HFILL }},
{ &hf_mqpcf_cfh_version , { "Version..", "mqpcf.cfh.version", FT_UINT32, BASE_DEC, NULL, 0x0, "CFH version", HFILL }},
{ &hf_mqpcf_cfh_command , { "Command..", "mqpcf.cfh.command", FT_UINT32, BASE_DEC, VALS(&GET_VALSV(mqcmd)), 0x0, "CFH command", HFILL }},
{ &hf_mqpcf_cfh_MsgSeqNbr, { "MsgSeqNbr", "mqpcf.cfh.MsgSeqNbr", FT_UINT32, BASE_DEC, NULL, 0x0, "CFH message sequence number", HFILL }},
{ &hf_mqpcf_cfh_control , { "Control..", "mqpcf.cfh.control", FT_UINT32, BASE_DEC, NULL, 0x0, "CFH control", HFILL }},
{ &hf_mqpcf_cfh_compcode , { "CompCode.", "mqpcf.cfh.compcode", FT_UINT32, BASE_DEC, VALS(&GET_VALSV(mqcc)), 0x0, "CFH completion code", HFILL }},
{ &hf_mqpcf_cfh_reason , { "ReasCode.", "mqpcf.cfh.reasoncode", FT_UINT32, BASE_DEC, VALS(&GET_VALSV(mqrc)), 0x0, "CFH reason code", HFILL }},
{ &hf_mqpcf_cfh_ParmCount, { "ParmCount", "mqpcf.cfh.ParmCount", FT_UINT32, BASE_DEC, NULL, 0x0, "CFH parameter count", HFILL }},
{ &hf_mq_pcf_prmtyp , { "ParmTyp..", "mqpcf.parm.type", FT_UINT32, BASE_DEC, VALS(&GET_VALSV(PrmTyp)), 0x0, "MQPCF parameter type", HFILL }},
{ &hf_mq_pcf_prmlen , { "ParmLen..", "mqpcf.parm.len", FT_UINT32, BASE_DEC, NULL, 0x0, "MQPCF parameter length", HFILL }},
{ &hf_mq_pcf_prmid , { "ParmID...", "mqpcf.parm.id", FT_UINT32, BASE_DEC, VALS(&GET_VALSV(PrmId)), 0x0, "MQPCF parameter id", HFILL }},
{ &hf_mq_pcf_prmidnovals , { "ParmID...", "mqpcf.parm.idNoVals", FT_UINT32, BASE_HEX_DEC, NULL, 0x0, "MQPCF parameter id No Vals", HFILL }},
{ &hf_mq_pcf_filterop , { "FilterOP.", "mqpcf.filter.op", FT_UINT32, BASE_DEC, VALS(&GET_VALSV(FilterOP)), 0x0, "MQPCF Filter operator", HFILL }},
{ &hf_mq_pcf_prmccsid , { "ParmCCSID", "mqpcf.parm.ccsid", FT_UINT32, BASE_DEC | BASE_RANGE_STRING, RVALS(&GET_VALRV(ccsid)), 0x0, "MQPCF parameter ccsid", HFILL }},
{ &hf_mq_pcf_prmstrlen , { "ParmStrLn", "mqpcf.parm.strlen", FT_UINT32, BASE_DEC, NULL, 0x0, "MQPCF parameter strlen", HFILL }},
{ &hf_mq_pcf_prmcount , { "ParmCount", "mqpcf.parm.count", FT_UINT32, BASE_DEC, NULL, 0x0, "MQPCF parameter count", HFILL }},
{ &hf_mq_pcf_prmunused , { "ParmUnuse", "mqpcf.parm.unused", FT_UINT32, BASE_DEC, NULL, 0x0, "MQPCF parameter unused", HFILL }},
{ &hf_mq_pcf_string , { "String...", "mqpcf.parm.string", FT_STRINGZ, BASE_NONE, NULL, 0x0, "MQPCF parameter string", HFILL }},
{ &hf_mq_pcf_stringlist , { "StrList..", "mqpcf.parm.stringlist", FT_STRINGZ, BASE_NONE, NULL, 0x0, "MQPCF parameter string list", HFILL }},
{ &hf_mq_pcf_int , { "Integer..", "mqpcf.parm.int", FT_INT32, BASE_DEC, NULL, 0x0, "MQPCF parameter int", HFILL }},
{ &hf_mq_pcf_intlist , { "IntList..", "mqpcf.parm.intlist", FT_INT32, BASE_DEC, NULL, 0x0, "MQPCF parameter int list", HFILL }},
{ &hf_mq_pcf_bytestring , { "ByteStr..", "mqpcf.parm.bytestring", FT_BYTES, BASE_NONE, NULL, 0x0, "MQPCF parameter byte string", HFILL }},
{ &hf_mq_pcf_int64 , { "Int64....", "mqpcf.parm.int64", FT_INT64, BASE_DEC, NULL, 0x0, "MQPCF parameter int64", HFILL }},
{ &hf_mq_pcf_int64list , { "Int64List", "mqpcf.parm.int64list", FT_INT64, BASE_DEC, NULL, 0x0, "MQPCF parameter int64 list", HFILL }},
};
static gint *ett[] =
{
&ett_mqpcf,
&ett_mqpcf_prm,
&ett_mqpcf_cfh,
};
static ei_register_info ei[] =
{
{ &ei_mq_pcf_prmln0, { "mqpcf.parm.len0", PI_MALFORMED, PI_ERROR, "MQPCF Parameter length is 0", EXPFILL }},
{ &ei_mq_pcf_MaxInt, { "mqpcf.parm.IntList", PI_UNDECODED, PI_WARN, "MQPCF Parameter Integer list exhausted", EXPFILL }},
{ &ei_mq_pcf_MaxStr, { "mqpcf.parm.StrList", PI_UNDECODED, PI_WARN, "MQPCF Parameter String list exhausted", EXPFILL }},
{ &ei_mq_pcf_MaxI64, { "mqpcf.parm.Int64List", PI_UNDECODED, PI_WARN, "MQPCF Parameter Int64 list exhausted", EXPFILL }},
{ &ei_mq_pcf_MaxPrm, { "mqpcf.parm.MaxPrm", PI_UNDECODED, PI_WARN, "MQPCF Max number of parameter exhausted", EXPFILL }},
{ &ei_mq_pcf_PrmCnt, { "mqpcf.parm.PrmCnt", PI_UNDECODED, PI_WARN, "MQPCF Unkn Parm Cnt Length invalid", EXPFILL }},
};
module_t *mq_pcf_module;
proto_mqpcf = proto_register_protocol("WebSphere MQ Programmable Command Formats", "MQ PCF", "mqpcf");
proto_register_field_array(proto_mqpcf, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_mqpcf = expert_register_protocol(proto_mqpcf);
expert_register_field_array(expert_mqpcf, ei, array_length(ei));
mq_pcf_module = prefs_register_protocol(proto_mqpcf, NULL);
prefs_register_uint_preference(mq_pcf_module, "maxprm",
"Set the maximun number of parameter in the PCF to decode",
"When dissecting PCF there can be a lot of parameters."
" You can limit the number of parameter decoded, before it continue with the next PCF.",
10, &mq_pcf_maxprm);
prefs_register_uint_preference(mq_pcf_module, "maxlst",
"Set the maximun number of Parameter List that are displayed",
"When dissecting a parameter of a PCFm, if it is a StringList, IntegerList or Integer64 List, "
" You can limit the number of element displayed, before it continue with the next Parameter.",
10, &mq_pcf_maxlst);
}
void proto_reg_handoff_mqpcf(void)
{
heur_dissector_add("mq", dissect_mqpcf_heur, proto_mqpcf);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=4 tabstop=4 noexpandtab:
* :indentSize=4:tabSize=4:noTabs=false:
*/