![Ulf Lamping](/assets/img/avatar_default.png)
I've done more than a day to change the timestamp resolution from microseconds to nanoseconds. As I really don't want to loose those changes, I'm going to check in the changes I've done so far. Hopefully someone else will give me a helping hand with the things left ... What's done: I've changed the timestamp resolution from usec to nsec in almost any place in the sources. I've changed parts of the implementation in nstime.s/.h and a lot of places elsewhere. As I don't understand the editcap source (well, I'm maybe just too tired right now), hopefully someone else might be able to fix this soon. Doing all those changes, we get native nanosecond timestamp resolution in Ethereal. After fixing all the remaining issues, I'll take a look how to display this in a convenient way... As I've also changed the wiretap timestamp resolution from usec to nsec we might want to change the wiretap version number... svn path=/trunk/; revision=15520
306 lines
8.3 KiB
C
306 lines
8.3 KiB
C
/* tap-dcerpcstat.c
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* dcerpcstat 2002 Ronnie Sahlberg
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*
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* $Id$
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#ifdef HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#include <string.h>
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#include "epan/packet_info.h"
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#include <epan/tap.h>
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#include <epan/stat_cmd_args.h>
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#include <epan/dissectors/packet-dcerpc.h>
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#include "register.h"
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/* used to keep track of statistics for a specific procedure */
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typedef struct _rpc_procedure_t {
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const char *proc;
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int num;
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nstime_t min;
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nstime_t max;
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nstime_t tot;
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} rpc_procedure_t;
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/* used to keep track of the statistics for an entire program interface */
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typedef struct _rpcstat_t {
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const char *prog;
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char *filter;
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e_uuid_t uuid;
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guint16 ver;
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guint32 num_procedures;
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rpc_procedure_t *procedures;
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} rpcstat_t;
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static int
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dcerpcstat_packet(void *prs, packet_info *pinfo, epan_dissect_t *edt _U_, const void *pri)
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{
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const dcerpc_info *ri=pri;
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rpcstat_t *rs=prs;
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nstime_t delta;
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rpc_procedure_t *rp;
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if(!ri->call_data){
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return 0;
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}
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if(!ri->call_data->req_frame){
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/* we have not seen the request so we dont know the delta*/
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return 0;
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}
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if(ri->call_data->opnum>=rs->num_procedures){
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/* dont handle this since its outside of known table */
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return 0;
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}
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/* we are only interested in reply packets */
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if(ri->ptype != PDU_RESP){
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return 0;
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}
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/* we are only interested in certain program/versions */
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if( (ri->call_data->uuid.Data1!=rs->uuid.Data1)
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||(ri->call_data->uuid.Data2!=rs->uuid.Data2)
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||(ri->call_data->uuid.Data3!=rs->uuid.Data3)
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||(ri->call_data->uuid.Data4[0]!=rs->uuid.Data4[0])
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||(ri->call_data->uuid.Data4[1]!=rs->uuid.Data4[1])
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||(ri->call_data->uuid.Data4[2]!=rs->uuid.Data4[2])
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||(ri->call_data->uuid.Data4[3]!=rs->uuid.Data4[3])
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||(ri->call_data->uuid.Data4[4]!=rs->uuid.Data4[4])
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||(ri->call_data->uuid.Data4[5]!=rs->uuid.Data4[5])
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||(ri->call_data->uuid.Data4[6]!=rs->uuid.Data4[6])
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||(ri->call_data->uuid.Data4[7]!=rs->uuid.Data4[7])
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||(ri->call_data->ver!=rs->ver)){
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return 0;
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}
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rp=&(rs->procedures[ri->call_data->opnum]);
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/* calculate time delta between request and reply */
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nstime_delta(&delta, &pinfo->fd->abs_ts, &ri->call_data->req_time);
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if(rp->num==0){
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rp->max.secs=delta.secs;
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rp->max.nsecs=delta.nsecs;
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}
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if(rp->num==0){
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rp->min.secs=delta.secs;
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rp->min.nsecs=delta.nsecs;
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}
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if( (delta.secs<rp->min.secs)
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||( (delta.secs==rp->min.secs)
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&&(delta.nsecs<rp->min.nsecs) ) ){
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rp->min.secs=delta.secs;
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rp->min.nsecs=delta.nsecs;
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}
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if( (delta.secs>rp->max.secs)
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||( (delta.secs==rp->max.secs)
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&&(delta.nsecs>rp->max.nsecs) ) ){
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rp->max.secs=delta.secs;
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rp->max.nsecs=delta.nsecs;
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}
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rp->tot.secs += delta.secs;
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rp->tot.nsecs += delta.nsecs;
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if(rp->tot.nsecs>1000000000){
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rp->tot.nsecs-=1000000000;
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rp->tot.secs++;
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}
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rp->num++;
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return 1;
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}
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static void
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dcerpcstat_draw(void *prs)
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{
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rpcstat_t *rs=prs;
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guint32 i;
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#ifdef G_HAVE_UINT64
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guint64 td;
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#else
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guint32 td;
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#endif
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printf("\n");
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printf("===================================================================\n");
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printf("%s Major Version %u RTT Statistics:\n", rs->prog, rs->ver);
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printf("Filter: %s\n",rs->filter?rs->filter:"");
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printf("Procedure Calls Min RTT Max RTT Avg RTT\n");
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for(i=0;i<rs->num_procedures;i++){
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/* scale it to units of 10us.*/
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/* for long captures with a large tot time, this can overflow on 32bit */
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td=(int)rs->procedures[i].tot.secs;
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td=td*100000+(int)rs->procedures[i].tot.nsecs/10000;
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if(rs->procedures[i].num){
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td/=rs->procedures[i].num;
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} else {
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td=0;
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}
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printf("%-25s %6d %3d.%05d %3d.%05d %3d.%05d\n",
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rs->procedures[i].proc,
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rs->procedures[i].num,
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(int)rs->procedures[i].min.secs,rs->procedures[i].min.nsecs/10000,
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(int)rs->procedures[i].max.secs,rs->procedures[i].max.nsecs/10000,
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td/100000, td%100000
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);
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}
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printf("===================================================================\n");
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}
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static void
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dcerpcstat_init(const char *optarg)
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{
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rpcstat_t *rs;
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guint32 i, max_procs;
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dcerpc_sub_dissector *procs;
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e_uuid_t uuid;
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guint d1,d2,d3,d40,d41,d42,d43,d44,d45,d46,d47;
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int major, minor;
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guint16 ver;
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int pos=0;
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const char *filter=NULL;
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GString *error_string;
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/*
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* XXX - DCE RPC statistics are maintained only by major version,
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* not by major and minor version, so the minor version number is
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* ignored.
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*
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* Should we just stop supporting minor version numbers here?
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* Or should we allow it to be omitted? Or should we keep
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* separate statistics for different minor version numbers,
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* and allow the minor version number to be omitted, and
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* report aggregate statistics for all minor version numbers
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* if it's omitted?
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*
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* XXX - should this be called "srt" rather than "rtt"? The
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* equivalent tap for Ethereal calls it "srt", for "Service
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* Response Time", rather than "rtt" for "Round-Trip Time".
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*/
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if(sscanf(optarg,"dcerpc,rtt,%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x,%d.%d%n", &d1,&d2,&d3,&d40,&d41,&d42,&d43,&d44,&d45,&d46,&d47,&major,&minor,&pos)==13){
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uuid.Data1=d1;
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uuid.Data2=d2;
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uuid.Data3=d3;
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uuid.Data4[0]=d40;
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uuid.Data4[1]=d41;
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uuid.Data4[2]=d42;
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uuid.Data4[3]=d43;
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uuid.Data4[4]=d44;
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uuid.Data4[5]=d45;
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uuid.Data4[6]=d46;
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uuid.Data4[7]=d47;
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if(pos){
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filter=optarg+pos;
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} else {
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filter=NULL;
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}
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} else {
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fprintf(stderr, "tethereal: invalid \"-z dcerpc,rtt,<uuid>,<major version>.<minor version>[,<filter>]\" argument\n");
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exit(1);
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}
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if (major < 0 || major > 65535) {
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fprintf(stderr,"tethereal: dcerpcstat_init() Major version number %d is invalid - must be positive and <= 65535\n", major);
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exit(1);
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}
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if (minor < 0 || minor > 65535) {
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fprintf(stderr,"tethereal: dcerpcstat_init() Minor version number %d is invalid - must be positive and <= 65535\n", minor);
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exit(1);
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}
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ver = major;
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rs=g_malloc(sizeof(rpcstat_t));
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rs->prog=dcerpc_get_proto_name(&uuid, ver);
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if(!rs->prog){
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g_free(rs);
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fprintf(stderr,"tethereal: dcerpcstat_init() Protocol with uuid:%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x v%u not supported\n",uuid.Data1,uuid.Data2,uuid.Data3,uuid.Data4[0],uuid.Data4[1],uuid.Data4[2],uuid.Data4[3],uuid.Data4[4],uuid.Data4[5],uuid.Data4[6],uuid.Data4[7],ver);
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exit(1);
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}
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procs=dcerpc_get_proto_sub_dissector(&uuid, ver);
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rs->uuid=uuid;
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rs->ver=ver;
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if(filter){
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rs->filter=g_malloc(strlen(filter)+1);
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strcpy(rs->filter, filter);
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} else {
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rs->filter=NULL;
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}
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for(i=0,max_procs=0;procs[i].name;i++){
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if(procs[i].num>max_procs){
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max_procs=procs[i].num;
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}
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}
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rs->num_procedures=max_procs+1;
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rs->procedures=g_malloc(sizeof(rpc_procedure_t)*(rs->num_procedures+1));
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for(i=0;i<rs->num_procedures;i++){
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int j;
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rs->procedures[i].proc="unknown";
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for(j=0;procs[j].name;j++){
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if(procs[j].num==i){
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rs->procedures[i].proc=procs[j].name;
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}
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}
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rs->procedures[i].num=0;
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rs->procedures[i].min.secs=0;
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rs->procedures[i].min.nsecs=0;
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rs->procedures[i].max.secs=0;
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rs->procedures[i].max.nsecs=0;
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rs->procedures[i].tot.secs=0;
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rs->procedures[i].tot.nsecs=0;
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}
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error_string=register_tap_listener("dcerpc", rs, filter, NULL, dcerpcstat_packet, dcerpcstat_draw);
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if(error_string){
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/* error, we failed to attach to the tap. clean up */
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g_free(rs->procedures);
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g_free(rs->filter);
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g_free(rs);
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fprintf(stderr, "tethereal: Couldn't register dcerpc,rtt tap: %s\n",
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error_string->str);
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g_string_free(error_string, TRUE);
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exit(1);
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}
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}
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void
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register_tap_listener_dcerpcstat(void)
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{
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register_stat_cmd_arg("dcerpc,rtt,", dcerpcstat_init);
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}
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