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wireshark/tap-iostat.c

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/* tap-iostat.c
* iostat 2002 Ronnie Sahlberg
*
* $Id$
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#include <string.h>
#include "epan/epan_dissect.h"
#include "epan/packet_info.h"
#include <epan/tap.h>
#include <epan/stat_cmd_args.h>
#include <epan/strutil.h>
#include "register.h"
typedef struct _io_stat_t {
gint32 interval; /* unit is ms */
guint32 num_items;
struct _io_stat_item_t *items;
const char **filters;
} io_stat_t;
#define CALC_TYPE_BYTES 0
#define CALC_TYPE_COUNT 1
#define CALC_TYPE_SUM 2
#define CALC_TYPE_MIN 3
#define CALC_TYPE_MAX 4
#define CALC_TYPE_AVG 5
typedef struct _io_stat_item_t {
io_stat_t *parent;
struct _io_stat_item_t *next;
struct _io_stat_item_t *prev;
gint32 time; /* unit is ms since start of capture */
int calc_type;
int hf_index;
guint32 frames;
guint32 num;
guint32 counter;
} io_stat_item_t;
static int
iostat_packet(void *arg, packet_info *pinfo, epan_dissect_t *edt _U_, const void *dummy _U_)
{
io_stat_item_t *mit = arg;
io_stat_item_t *it;
gint32 current_time;
GPtrArray *gp;
guint i;
current_time=(gint32) ((pinfo->fd->rel_ts.secs*1000)+(pinfo->fd->rel_ts.nsecs/1000000));
/* the prev item before the main one is always the last interval we saw packets for */
it=mit->prev;
/* XXX for the time being, just ignore all frames that are in the past.
should be fixed in the future but hopefully it is uncommon */
if(current_time<it->time){
return FALSE;
}
/* we have moved into a new interval, we need to create a new struct */
if(current_time>=(it->time+mit->parent->interval)){
it->next=g_malloc(sizeof(io_stat_item_t));
it->next->prev=it;
it->next->next=NULL;
it=it->next;
mit->prev=it;
it->time=(current_time / mit->parent->interval) * mit->parent->interval;
it->frames=0;
it->counter=0;
it->num=0;
it->calc_type=it->prev->calc_type;
it->hf_index=it->prev->hf_index;
}
/* it will now give us the current structure to use to store the data in */
it->frames++;
switch(it->calc_type){
case CALC_TYPE_BYTES:
it->counter+=pinfo->fd->pkt_len;
break;
case CALC_TYPE_COUNT:
gp=proto_get_finfo_ptr_array(edt->tree, it->hf_index);
if(gp){
it->counter+=gp->len;
}
break;
case CALC_TYPE_SUM:
gp=proto_get_finfo_ptr_array(edt->tree, it->hf_index);
if(gp){
for(i=0;i<gp->len;i++){
switch(proto_registrar_get_ftype(it->hf_index)){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
it->counter+=fvalue_get_uinteger(&((field_info *)gp->pdata[i])->value);
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
it->counter+=fvalue_get_sinteger(&((field_info *)gp->pdata[i])->value);
break;
}
}
}
break;
case CALC_TYPE_MIN:
gp=proto_get_finfo_ptr_array(edt->tree, it->hf_index);
if(gp){
int type;
guint32 val;
nstime_t *new_time;
type=proto_registrar_get_ftype(it->hf_index);
for(i=0;i<gp->len;i++){
switch(type){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
val=fvalue_get_uinteger(&((field_info *)gp->pdata[i])->value);
if((it->frames==1)&&(i==0)){
it->counter=val;
} else if(val<it->counter){
it->counter=val;
}
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
val=fvalue_get_sinteger(&((field_info *)gp->pdata[i])->value);
if((it->frames==1)&&(i==0)){
it->counter=val;
} else if((gint32)val<(gint32)(it->counter)){
it->counter=val;
}
break;
case FT_RELATIVE_TIME:
new_time=fvalue_get(&((field_info *)gp->pdata[i])->value);
val=(guint32) (new_time->secs*1000+new_time->nsecs/1000000);
if((it->frames==1)&&(i==0)){
it->counter=val;
} else if(val<it->counter){
it->counter=val;
}
break;
}
}
}
break;
case CALC_TYPE_MAX:
gp=proto_get_finfo_ptr_array(edt->tree, it->hf_index);
if(gp){
int type;
guint32 val;
nstime_t *new_time;
type=proto_registrar_get_ftype(it->hf_index);
for(i=0;i<gp->len;i++){
switch(type){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
val=fvalue_get_uinteger(&((field_info *)gp->pdata[i])->value);
if((it->frames==1)&&(i==0)){
it->counter=val;
} else if(val>it->counter){
it->counter=val;
}
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
val=fvalue_get_sinteger(&((field_info *)gp->pdata[i])->value);
if((it->frames==1)&&(i==0)){
it->counter=val;
} else if((gint32)val>(gint32)(it->counter)){
it->counter=val;
}
break;
case FT_RELATIVE_TIME:
new_time=fvalue_get(&((field_info *)gp->pdata[i])->value);
val=(guint32) (new_time->secs*1000+new_time->nsecs/1000000);
if((it->frames==1)&&(i==0)){
it->counter=val;
} else if(val>it->counter){
it->counter=val;
}
break;
}
}
}
break;
case CALC_TYPE_AVG:
gp=proto_get_finfo_ptr_array(edt->tree, it->hf_index);
if(gp){
int type;
guint32 val;
nstime_t *new_time;
type=proto_registrar_get_ftype(it->hf_index);
for(i=0;i<gp->len;i++){
it->num++;
switch(type){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
val=fvalue_get_uinteger(&((field_info *)gp->pdata[i])->value);
it->counter+=val;
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
val=fvalue_get_sinteger(&((field_info *)gp->pdata[i])->value);
it->counter+=val;
break;
case FT_RELATIVE_TIME:
new_time=fvalue_get(&((field_info *)gp->pdata[i])->value);
val=(guint32) (new_time->secs*1000+new_time->nsecs/1000000);
it->counter+=val;
break;
}
}
}
break;
}
return TRUE;
}
static void
iostat_draw(void *arg)
{
io_stat_item_t *mit = arg;
io_stat_t *iot;
io_stat_item_t **items;
guint32 *frames;
guint32 *counters;
guint32 *num;
guint32 i,more_items;
gint t;
iot=mit->parent;
printf("\n");
printf("===================================================================\n");
printf("IO Statistics\n");
printf("Interval: %d.%03d secs\n", iot->interval/1000, iot->interval%1000);
for(i=0;i<iot->num_items;i++){
printf("Column #%d: %s\n",i,iot->filters[i]?iot->filters[i]:"");
}
printf(" ");
for(i=0;i<iot->num_items;i++){
printf("| Column #%-2d ",i);
}
printf("\n");
printf("Time ");
for(i=0;i<iot->num_items;i++){
switch(iot->items[i].calc_type){
case CALC_TYPE_BYTES:
printf("|frames| bytes ");
break;
case CALC_TYPE_COUNT:
printf("| COUNT ");
break;
case CALC_TYPE_SUM:
printf("| SUM ");
break;
case CALC_TYPE_MIN:
printf("| MIN ");
break;
case CALC_TYPE_MAX:
printf("| MAX ");
break;
case CALC_TYPE_AVG:
printf("| AVG ");
break;
}
}
printf("\n");
items=g_malloc(sizeof(io_stat_item_t *)*iot->num_items);
frames=g_malloc(sizeof(guint32)*iot->num_items);
counters=g_malloc(sizeof(guint32)*iot->num_items);
num=g_malloc(sizeof(guint32)*iot->num_items);
/* preset all items at the first interval */
for(i=0;i<iot->num_items;i++){
items[i]=&iot->items[i];
}
/* loop the items until we run out of them all */
t=0;
do {
more_items=0;
for(i=0;i<iot->num_items;i++){
frames[i]=0;
counters[i]=0;
num[i]=0;
}
for(i=0;i<iot->num_items;i++){
if(items[i] && (t>=(items[i]->time+iot->interval))){
items[i]=items[i]->next;
}
if(items[i] && (t<(items[i]->time+iot->interval)) && (t>=items[i]->time) ){
frames[i]=items[i]->frames;
counters[i]=items[i]->counter;
num[i]=items[i]->num;
}
if(items[i]){
more_items=1;
}
}
if(more_items){
printf("%03d.%03d-%03d.%03d ",
t/1000,t%1000,
(t+iot->interval)/1000,(t+iot->interval)%1000);
for(i=0;i<iot->num_items;i++){
switch(iot->items[i].calc_type){
case CALC_TYPE_BYTES:
printf("%6d %9d ",frames[i],counters[i]);
break;
case CALC_TYPE_COUNT:
printf(" %8d ", counters[i]);
break;
case CALC_TYPE_SUM:
printf(" %8d ", counters[i]);
break;
case CALC_TYPE_MIN:
switch(proto_registrar_get_ftype(iot->items[i].hf_index)){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
printf(" %8u ", counters[i]);
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
printf(" %8d ", counters[i]);
break;
case FT_RELATIVE_TIME:
printf(" %6d.%03d ", counters[i]/1000, counters[i]%1000);
break;
}
break;
case CALC_TYPE_MAX:
switch(proto_registrar_get_ftype(iot->items[i].hf_index)){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
printf(" %8u ", counters[i]);
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
printf(" %8d ", counters[i]);
break;
case FT_RELATIVE_TIME:
printf(" %6d.%03d ", counters[i]/1000, counters[i]%1000);
break;
}
break;
case CALC_TYPE_AVG:
if(num[i]==0){
num[i]=1;
}
switch(proto_registrar_get_ftype(iot->items[i].hf_index)){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
printf(" %8u ", counters[i]/num[i]);
break;
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
printf(" %8d ", counters[i]/num[i]);
break;
case FT_RELATIVE_TIME:
counters[i]/=num[i];
printf(" %6d.%03d ", counters[i]/1000, counters[i]%1000);
break;
}
break;
}
}
printf("\n");
}
t+=iot->interval;
} while(more_items);
printf("===================================================================\n");
g_free(items);
g_free(frames);
g_free(counters);
g_free(num);
}
typedef struct {
const char *func_name;
int calc_type;
} calc_type_ent_t;
static calc_type_ent_t calc_type_table[] = {
{ "COUNT", CALC_TYPE_COUNT },
{ "SUM", CALC_TYPE_SUM },
{ "MIN", CALC_TYPE_MIN },
{ "MAX", CALC_TYPE_MAX },
{ "AVG", CALC_TYPE_AVG },
{ NULL, 0 }
};
static void
register_io_tap(io_stat_t *io, int i, const char *filter)
{
GString *error_string;
const char *flt;
int j;
size_t namelen;
const char *p, *parenp;
char *field;
header_field_info *hfi;
io->items[i].prev=&io->items[i];
io->items[i].next=NULL;
io->items[i].parent=io;
io->items[i].time=0;
io->items[i].calc_type=CALC_TYPE_BYTES;
io->items[i].frames=0;
io->items[i].counter=0;
io->items[i].num=0;
io->filters[i]=filter;
flt=filter;
if(!filter){
filter="";
}
field=NULL;
hfi=NULL;
for(j=0; calc_type_table[j].func_name; j++){
namelen=strlen(calc_type_table[j].func_name);
if(strncmp(filter, calc_type_table[j].func_name, namelen) == 0
&& *(filter+namelen)=='('){
io->items[i].calc_type=calc_type_table[j].calc_type;
p=filter+namelen+1;
parenp=strchr(p, ')');
if(!parenp){
fprintf(stderr, "tshark: Closing parenthesis missing from calculated expression.\n");
exit(10);
}
/* bail out if there was no field specified */
if(parenp==p){
fprintf(stderr, "tshark: You didn't specify a field name for %s(*).\n",
calc_type_table[j].func_name);
exit(10);
}
field=g_malloc(parenp-p+1);
if(!field){
fprintf(stderr, "tshark: Out of memory.\n");
exit(10);
}
memcpy(field, p, parenp-p);
field[parenp-p] = '\0';
flt=parenp + 1;
hfi=proto_registrar_get_byname(field);
if(!hfi){
fprintf(stderr, "tshark: There is no field named '%s'.\n",
field);
g_free(field);
exit(10);
}
io->items[i].hf_index=hfi->id;
break;
}
}
if(io->items[i].calc_type!=CALC_TYPE_BYTES){
/* check that the type is compatible */
switch(hfi->type){
case FT_UINT8:
case FT_UINT16:
case FT_UINT24:
case FT_UINT32:
case FT_INT8:
case FT_INT16:
case FT_INT24:
case FT_INT32:
/* these types support all calculations */
break;
case FT_RELATIVE_TIME:
/* this type only supports SUM, COUNT, MAX, MIN, AVG */
switch(io->items[i].calc_type){
case CALC_TYPE_SUM:
case CALC_TYPE_COUNT:
case CALC_TYPE_MAX:
case CALC_TYPE_MIN:
case CALC_TYPE_AVG:
break;
default:
fprintf(stderr,
"tshark: %s is a relative-time field, so %s(*) calculations are not supported on it.",
field,
calc_type_table[j].func_name);
exit(10);
}
break;
case FT_UINT64:
case FT_INT64:
/*
* XXX - support this if gint64/guint64 are
* available?
*/
if(io->items[i].calc_type!=CALC_TYPE_COUNT){
fprintf(stderr,
"tshark: %s is a 64-bit integer, so %s(*) calculations are not supported on it.",
field,
calc_type_table[j].func_name);
exit(10);
}
break;
default:
/*
* XXX - support all operations on floating-point
* numbers?
*/
if(io->items[i].calc_type!=CALC_TYPE_COUNT){
fprintf(stderr,
"tshark: %s doesn't have integral values, so %s(*) calculations are not supported on it.\n",
field,
calc_type_table[j].func_name);
exit(10);
}
break;
}
g_free(field);
}
/*
CALC_TYPE_SUM 2
CALC_TYPE_MIN 3
CALC_TYPE_MAX 4
CALC_TYPE_AVG 5
*/
error_string=register_tap_listener("frame", &io->items[i], flt, NULL, iostat_packet, i?NULL:iostat_draw);
if(error_string){
g_free(io->items);
g_free(io);
fprintf(stderr, "tshark: Couldn't register io,stat tap: %s\n",
error_string->str);
g_string_free(error_string, TRUE);
exit(1);
}
}
void
iostat_init(const char *optarg, void* userdata _U_)
{
float interval_float;
gint32 interval;
int pos=0;
io_stat_t *io;
const char *filter=NULL;
if(sscanf(optarg,"io,stat,%f,%n",&interval_float,&pos)==1){
if(pos){
filter=optarg+pos;
} else {
filter=NULL;
}
} else {
fprintf(stderr, "tshark: invalid \"-z io,stat,<interval>[,<filter>]\" argument\n");
exit(1);
}
/* make interval be number of ms */
interval=(gint32)(interval_float*1000.0+0.9);
if(interval<1){
fprintf(stderr, "tshark: \"-z\" interval must be >=0.001 seconds.\n");
exit(10);
}
io=g_malloc(sizeof(io_stat_t));
io->interval=interval;
if((!filter)||(filter[0]==0)){
io->num_items=1;
io->items=g_malloc(sizeof(io_stat_item_t)*io->num_items);
io->filters=g_malloc(sizeof(char *)*io->num_items);
register_io_tap(io, 0, NULL);
} else {
const char *str,*pos;
char *tmp;
int i;
/* find how many ',' separated filters we have */
str=filter;
io->num_items=1;
while((str=strchr(str,','))){
io->num_items++;
str++;
}
io->items=g_malloc(sizeof(io_stat_item_t)*io->num_items);
io->filters=g_malloc(sizeof(char *)*io->num_items);
/* for each filter, register a tap listener */
i=0;
str=filter;
do{
pos=strchr(str,',');
if(pos==str){
register_io_tap(io, i, NULL);
} else if(pos==NULL) {
tmp=g_strdup(str);
register_io_tap(io, i, tmp);
} else {
tmp=g_malloc((pos-str)+1);
g_strlcpy(tmp,str,(pos-str)+1);
register_io_tap(io, i, tmp);
}
str=pos+1;
i++;
} while(pos);
}
}
void
register_tap_listener_iostat(void)
{
register_stat_cmd_arg("io,stat,", iostat_init, NULL);
}
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