2002-11-01 01:49:40 +00:00
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/* tap-iostat.c
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* iostat 2002 Ronnie Sahlberg
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*
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2002-11-15 10:55:19 +00:00
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* $Id: tap-iostat.c,v 1.3 2002/11/15 10:55:15 sahlberg Exp $
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2002-11-01 01:49:40 +00:00
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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 "tap.h"
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#include "register.h"
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typedef struct _io_stat_t {
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gint32 interval;
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guint32 num_items;
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struct _io_stat_item_t *items;
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char **filters;
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} io_stat_t;
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typedef struct _io_stat_item_t {
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io_stat_t *parent;
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struct _io_stat_item_t *next;
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struct _io_stat_item_t *prev;
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gint32 time;
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guint32 frames;
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guint32 bytes;
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} io_stat_item_t;
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#ifdef REMOVED
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/* Tethereal does not use the reset callback.
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But if someone ports this feature to Gtk with a nice gui, this is what
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reset should look like.
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*/
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static void
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iostat_reset(io_stat_item_t *mit)
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{
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io_stat_item_t *it;
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mit->prev=mit;
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mit->time=0;
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mit->frames=0;
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mit->bytes=0;
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while(mit->next){
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it=mit->next;
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mit=mit->next->next;
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g_free(it);
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}
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}
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/* function to remove and clean up an io stat. would be used by Gtk/Gtk2 version
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io iostat when the iostat window is closed.
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*/
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static void
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iostat_cleanup(io_stat_t *io)
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{
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int i;
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for(i=0;i<io->num_items;i++){
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if(filters[i]){
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g_free(filters[i]);
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filters[i]=NULL;
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}
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iostat_reset(&io->items[i]);
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remove_tap_listener(&io->items[i]);
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}
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g_free(io->items);
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g_free(io->filters);
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g_free(io);
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}
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#endif
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static int
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iostat_packet(io_stat_item_t *mit, packet_info *pinfo, epan_dissect_t *edt _U_, void *dummy _U_)
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{
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io_stat_item_t *it;
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/* the prev item before the main one is always the last interval we saw packets for */
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it=mit->prev;
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/* XXX for the time being, just ignore all frames that are in the past.
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should be fixed in the future but hopefully it is uncommon */
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if(pinfo->fd->rel_secs<it->time){
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return FALSE;
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}
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/* we have moved into a new interval, we need to create a new struct */
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if(pinfo->fd->rel_secs>=(it->time+mit->parent->interval)){
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it->next=g_malloc(sizeof(io_stat_item_t));
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it->next->prev=it;
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it->next->next=NULL;
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it=it->next;
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mit->prev=it;
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it->time=(pinfo->fd->rel_secs / mit->parent->interval) * mit->parent->interval;
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it->frames=0;
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it->bytes=0;
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}
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/* it will now give us the current structure to use to store the data in */
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it->frames++;
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it->bytes+=pinfo->fd->pkt_len;
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return TRUE;
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}
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static void
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iostat_draw(io_stat_item_t *mit)
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{
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io_stat_t *iot;
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io_stat_item_t **items;
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guint32 *frames;
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guint32 *bytes;
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guint32 i,more_items;
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gint t;
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iot=mit->parent;
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printf("\n");
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printf("===================================================================\n");
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printf("IO Statistics\n");
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printf("Interval: %d secs\n", iot->interval);
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for(i=0;i<iot->num_items;i++){
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printf("Column #%d: %s\n",i,iot->filters[i]?iot->filters[i]:"");
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}
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printf(" ");
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for(i=0;i<iot->num_items;i++){
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printf("| Column #%-2d ",i);
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}
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printf("\n");
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printf("Time ");
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for(i=0;i<iot->num_items;i++){
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printf("|frames| bytes ");
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}
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printf("\n");
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items=g_malloc(sizeof(io_stat_item_t *)*iot->num_items);
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frames=g_malloc(sizeof(guint32)*iot->num_items);
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bytes=g_malloc(sizeof(guint32)*iot->num_items);
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/* preset all items at the first interval */
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for(i=0;i<iot->num_items;i++){
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items[i]=&iot->items[i];
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}
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/* loop the items until we run out of them all */
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t=0;
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do {
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more_items=0;
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for(i=0;i<iot->num_items;i++){
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frames[i]=0;
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bytes[i]=0;
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}
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for(i=0;i<iot->num_items;i++){
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if(items[i] && (t>=(items[i]->time+iot->interval))){
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items[i]=items[i]->next;
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}
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if(items[i] && (t<(items[i]->time+iot->interval)) && (t>=items[i]->time) ){
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frames[i]=items[i]->frames;
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bytes[i]=items[i]->bytes;
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}
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if(items[i]){
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more_items=1;
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}
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}
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if(more_items){
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printf("%5d-%5d ",t,t+iot->interval);
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for(i=0;i<iot->num_items;i++){
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printf("%6d %9d ",frames[i],bytes[i]);
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}
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printf("\n");
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}
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t+=iot->interval;
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} while(more_items);
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printf("===================================================================\n");
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g_free(items);
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g_free(frames);
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g_free(bytes);
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}
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static void
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register_io_tap(io_stat_t *io, int i, char *filter)
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{
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io->items[i].prev=&io->items[i];
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io->items[i].next=NULL;
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io->items[i].parent=io;
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io->items[i].time=0;
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io->items[i].frames=0;
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io->items[i].bytes=0;
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io->filters[i]=filter;
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if(register_tap_listener("frame", &io->items[i], filter, NULL, (void*)iostat_packet, i?NULL:(void*)iostat_draw)){
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g_free(io->items);
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g_free(io);
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fprintf(stderr,"tethereal: iostat_init() failed to attach tap\n");
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exit(1);
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}
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}
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void
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iostat_init(char *optarg)
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{
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int interval, pos=0;
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io_stat_t *io;
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char *filter=NULL;
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if(sscanf(optarg,"io,stat,%d,%n",&interval,&pos)==1){
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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 io,stat,<interval>[,<filter>]\" argument\n");
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exit(1);
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}
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if(interval<1){
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fprintf(stderr, "tethereal:iostat_init() interval must be >0 seconds\n");
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exit(10);
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}
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io=g_malloc(sizeof(io_stat_t));
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io->interval=interval;
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if((!filter)||(filter[0]==0)){
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io->num_items=1;
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io->items=g_malloc(sizeof(io_stat_item_t)*io->num_items);
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io->filters=g_malloc(sizeof(char *)*io->num_items);
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register_io_tap(io, 0, NULL);
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} else {
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char *str,*pos,*tmp;
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int i;
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/* find how many ',' separated filters we have */
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str=filter;
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io->num_items=1;
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2002-11-01 09:40:23 +00:00
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while((str=strchr(str,','))){
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2002-11-01 01:49:40 +00:00
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io->num_items++;
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str++;
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}
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io->items=g_malloc(sizeof(io_stat_item_t)*io->num_items);
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io->filters=g_malloc(sizeof(char *)*io->num_items);
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/* for each filter, register a tap listener */
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i=0;
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str=filter;
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do{
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2002-11-01 09:40:23 +00:00
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pos=strchr(str,',');
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2002-11-01 01:49:40 +00:00
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if(pos==str){
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register_io_tap(io, i, NULL);
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} else if(pos==NULL) {
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tmp=g_malloc(strlen(str)+1);
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strcpy(tmp,str);
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register_io_tap(io, i, tmp);
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} else {
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tmp=g_malloc((pos-str)+1);
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strncpy(tmp,str,(pos-str));
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tmp[pos-str]=0;
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register_io_tap(io, i, tmp);
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}
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str=pos+1;
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i++;
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} while(pos);
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}
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}
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void
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register_tap_listener_iostat(void)
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{
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register_ethereal_tap("io,stat,", iostat_init, NULL, NULL);
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}
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