![Guy Harris](/assets/img/avatar_default.png)
Change-Id: I2941bb7e6dc0fce3e1256af6e5e19d2997de5801 Reviewed-on: https://code.wireshark.org/review/7573 Reviewed-by: Guy Harris <guy@alum.mit.edu>
255 lines
6.3 KiB
C
255 lines
6.3 KiB
C
/* tap-rpcprogs.c
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* rpcstat 2002 Ronnie Sahlberg
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* This module provides rpc call/reply SRT statistics to tshark.
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* It is only used by tshark and not wireshark
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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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_tap_ui.h>
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#include <epan/dissectors/packet-rpc.h>
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#define MICROSECS_PER_SEC 1000000
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#define NANOSECS_PER_SEC 1000000000
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void register_tap_listener_rpcprogs(void);
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/* used to keep track of statistics for a specific program/version */
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typedef struct _rpc_program_t {
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struct _rpc_program_t *next;
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guint32 program;
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guint32 version;
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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_program_t;
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static rpc_program_t *prog_list = NULL;
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static int already_enabled = 0;
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static int
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rpcprogs_packet(void *dummy1 _U_, packet_info *pinfo, epan_dissect_t *edt _U_, const void *pri)
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{
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const rpc_call_info_value *ri = (const rpc_call_info_value *)pri;
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nstime_t delta;
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rpc_program_t *rp = NULL;
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if (!prog_list) {
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/* the list was empty */
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rp = g_new(rpc_program_t, 1);
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rp->next = NULL;
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rp->program = ri->prog;
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rp->version = ri->vers;
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rp->num = 0;
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rp->min.secs = 0;
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rp->min.nsecs = 0;
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rp->max.secs = 0;
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rp->max.nsecs = 0;
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rp->tot.secs = 0;
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rp->tot.nsecs = 0;
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prog_list = rp;
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} else if ((ri->prog == prog_list->program)
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&& (ri->vers == prog_list->version)) {
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rp = prog_list;
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} else if ( (ri->prog < prog_list->program)
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|| ((ri->prog == prog_list->program) && (ri->vers < prog_list->version))) {
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/* we should be first entry in list */
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rp = g_new(rpc_program_t, 1);
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rp->next = prog_list;
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rp->program = ri->prog;
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rp->version = ri->vers;
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rp->num = 0;
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rp->min.secs = 0;
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rp->min.nsecs = 0;
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rp->max.secs = 0;
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rp->max.nsecs = 0;
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rp->tot.secs = 0;
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rp->tot.nsecs = 0;
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prog_list = rp;
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} else {
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/* we go somewhere else in the list */
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for (rp=prog_list; rp; rp=rp->next) {
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if ((rp->next)
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&& (rp->next->program == ri->prog)
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&& (rp->next->version == ri->vers)) {
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rp = rp->next;
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break;
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}
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if ((!rp->next)
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|| (rp->next->program > ri->prog)
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|| ( (rp->next->program == ri->prog)
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&& (rp->next->version > ri->vers))) {
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rpc_program_t *trp;
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trp = g_new(rpc_program_t, 1);
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trp->next = rp->next;
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trp->program = ri->prog;
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trp->version = ri->vers;
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trp->num = 0;
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trp->min.secs = 0;
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trp->min.nsecs = 0;
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trp->max.secs = 0;
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trp->max.nsecs = 0;
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trp->tot.secs = 0;
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trp->tot.nsecs = 0;
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rp->next = trp;
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rp = trp;
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break;
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}
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}
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}
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/* we are only interested in reply packets */
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if (ri->request || !rp) {
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return 0;
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}
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/* calculate time delta between request and reply */
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nstime_delta(&delta, &pinfo->fd->abs_ts, &ri->req_time);
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if ((rp->max.secs == 0)
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&& (rp->max.nsecs == 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->min.secs == 0)
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&& (rp->min.nsecs == 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 > NANOSECS_PER_SEC) {
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rp->tot.nsecs -= NANOSECS_PER_SEC;
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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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rpcprogs_draw(void *dummy _U_)
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{
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guint64 td;
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rpc_program_t *rp;
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char str[64];
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printf("\n");
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printf("==========================================================\n");
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printf("ONC-RPC Program Statistics:\n");
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printf("Program Version Calls Min SRT Max SRT Avg SRT\n");
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for (rp = prog_list;rp;rp = rp->next) {
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/* Only display procs with non-zero calls */
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if (rp->num == 0) {
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continue;
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}
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/* Scale the average SRT in units of 1us and round to the nearest us. */
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td = ((guint64)(rp->tot.secs)) * NANOSECS_PER_SEC + rp->tot.nsecs;
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td = ((td / rp->num) + 500) / 1000;
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g_snprintf(str, sizeof(str), "%s(%d)", rpc_prog_name(rp->program), rp->program);
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printf("%-15s %2u %6d %3d.%06d %3d.%06d %3" G_GINT64_MODIFIER "u.%06" G_GINT64_MODIFIER "u\n",
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str,
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rp->version,
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rp->num,
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(int)(rp->min.secs), (rp->min.nsecs+500)/1000,
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(int)(rp->max.secs), (rp->max.nsecs+500)/1000,
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td/MICROSECS_PER_SEC, td%MICROSECS_PER_SEC
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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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rpcprogs_init(const char *opt_arg _U_, void *userdata _U_)
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{
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GString *error_string;
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if (already_enabled) {
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return;
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}
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already_enabled = 1;
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error_string = register_tap_listener("rpc", NULL, NULL, 0, NULL, rpcprogs_packet, rpcprogs_draw);
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if (error_string) {
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fprintf(stderr, "tshark: Couldn't register rpc,programs 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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static stat_tap_ui rpcprogs_ui = {
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REGISTER_STAT_GROUP_GENERIC,
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NULL,
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"rpc,programs",
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rpcprogs_init,
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0,
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NULL
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};
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void
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register_tap_listener_rpcprogs(void)
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{
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register_stat_tap_ui(&rpcprogs_ui, NULL);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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