ui/cli/tap-radiusstat.c

   1 /* tap-radiusstat.c
   2  * Copyright 2006 Alejandro Vaquero <alejandrovaquero@yahoo.com>
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #include "config.h"
  26
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #include "epan/packet_info.h"
  32 #include <epan/tap.h>
  33 #include <epan/stat_cmd_args.h>
  34 #include "epan/value_string.h"
  35 #include <epan/dissectors/packet-radius.h>
  36 #include "epan/timestats.h"
  37
  38 void register_tap_listener_radiusstat(void);
  39
  40 typedef enum _radius_category {
  41         RADIUS_CAT_OVERALL = 0,
  42         RADIUS_CAT_ACCESS,
  43         RADIUS_CAT_ACCOUNTING,
  44         RADIUS_CAT_PASSWORD,
  45         RADIUS_CAT_RESOURCE_FREE,
  46         RADIUS_CAT_RESOURCE_QUERY,
  47         RADIUS_CAT_NAS_REBOOT,
  48         RADIUS_CAT_EVENT,
  49         RADIUS_CAT_DISCONNECT,
  50         RADIUS_CAT_COA,
  51         RADIUS_CAT_OTHERS,
  52         RADIUS_CAT_NUM_TIMESTATS
  53 } radius_category;
  54
  55 /* used to keep track of the statistics for an entire program interface */
  56 typedef struct _radiusstat_t {
  57         char *filter;
  58         timestat_t rtd[RADIUS_CAT_NUM_TIMESTATS];
  59         guint32 open_req_num;
  60         guint32 disc_rsp_num;
  61         guint32 req_dup_num;
  62         guint32 rsp_dup_num;
  63 } radiusstat_t;
  64
  65
  66
  67
  68 static const value_string radius_message_code[] = {
  69         {  RADIUS_CAT_OVERALL,        "Overall       "},
  70         {  RADIUS_CAT_ACCESS,         "Access        "},
  71         {  RADIUS_CAT_ACCOUNTING,     "Accounting    "},
  72         {  RADIUS_CAT_PASSWORD,       "Password      "},
  73         {  RADIUS_CAT_RESOURCE_FREE,  "Resource Free "},
  74         {  RADIUS_CAT_RESOURCE_QUERY, "Resource Query"},
  75         {  RADIUS_CAT_NAS_REBOOT,     "NAS Reboot    "},
  76         {  RADIUS_CAT_EVENT,          "Event         "},
  77         {  RADIUS_CAT_DISCONNECT,     "Disconnect    "},
  78         {  RADIUS_CAT_COA,            "CoA           "},
  79         {  RADIUS_CAT_OTHERS,         "Other         "},
  80         {  0, NULL}
  81 };
  82
  83 static int
  84 radiusstat_packet(void *prs, packet_info *pinfo, epan_dissect_t *edt _U_, const void *pri)
  85 {
  86         radiusstat_t *rs=(radiusstat_t *)prs;
  87         const radius_info_t *ri=(const radius_info_t *)pri;
  88         nstime_t delta;
  89         int ret = 0;
  90
  91         switch (ri->code) {
  92
  93         case RADIUS_PKT_TYPE_ACCESS_REQUEST:
  94         case RADIUS_PKT_TYPE_ACCOUNTING_REQUEST:
  95         case RADIUS_PKT_TYPE_PASSWORD_REQUEST:
  96         case RADIUS_PKT_TYPE_RESOURCE_FREE_REQUEST:
  97         case RADIUS_PKT_TYPE_RESOURCE_QUERY_REQUEST:
  98         case RADIUS_PKT_TYPE_NAS_REBOOT_REQUEST:
  99         case RADIUS_PKT_TYPE_EVENT_REQUEST:
 100         case RADIUS_PKT_TYPE_DISCONNECT_REQUEST:
 101         case RADIUS_PKT_TYPE_COA_REQUEST:
 102                 if(ri->is_duplicate){
 103                         /* Duplicate is ignored */
 104                         rs->req_dup_num++;
 105                 }
 106                 else {
 107                         rs->open_req_num++;
 108                 }
 109                 break;
 110
 111         case RADIUS_PKT_TYPE_ACCESS_ACCEPT:
 112         case RADIUS_PKT_TYPE_ACCESS_REJECT:
 113         case RADIUS_PKT_TYPE_ACCOUNTING_RESPONSE:
 114         case RADIUS_PKT_TYPE_PASSWORD_ACK:
 115         case RADIUS_PKT_TYPE_PASSWORD_REJECT:
 116         case RADIUS_PKT_TYPE_RESOURCE_FREE_RESPONSE:
 117         case RADIUS_PKT_TYPE_RESOURCE_QUERY_RESPONSE:
 118         case RADIUS_PKT_TYPE_NAS_REBOOT_RESPONSE:
 119         case RADIUS_PKT_TYPE_EVENT_RESPONSE:
 120         case RADIUS_PKT_TYPE_DISCONNECT_ACK:
 121         case RADIUS_PKT_TYPE_DISCONNECT_NAK:
 122         case RADIUS_PKT_TYPE_COA_ACK:
 123         case RADIUS_PKT_TYPE_COA_NAK:
 124                 if(ri->is_duplicate){
 125                         /* Duplicate is ignored */
 126                         rs->rsp_dup_num++;
 127                 }
 128                 else if (!ri->request_available) {
 129                         /* no request was seen */
 130                         rs->disc_rsp_num++;
 131                 }
 132                 else {
 133                         rs->open_req_num--;
 134                         /* calculate time delta between request and response */
 135                         nstime_delta(&delta, &pinfo->fd->abs_ts, &ri->req_time);
 136
 137                         time_stat_update(&(rs->rtd[RADIUS_CAT_OVERALL]),&delta, pinfo);
 138
 139                         if (ri->code == RADIUS_PKT_TYPE_ACCESS_ACCEPT || ri->code == RADIUS_PKT_TYPE_ACCESS_REJECT) {
 140                                 time_stat_update(&(rs->rtd[RADIUS_CAT_ACCESS]),&delta, pinfo);
 141                         }
 142                         else if (ri->code == RADIUS_PKT_TYPE_ACCOUNTING_RESPONSE) {
 143                                 time_stat_update(&(rs->rtd[RADIUS_CAT_ACCOUNTING]),&delta, pinfo);
 144                         }
 145                         else {
 146                                 time_stat_update(&(rs->rtd[RADIUS_CAT_OTHERS]),&delta, pinfo);
 147                         }
 148
 149                         ret = 1;
 150                 }
 151                 break;
 152
 153         default:
 154                 break;
 155         }
 156
 157         return ret;
 158 }
 159
 160 static void
 161 radiusstat_draw(void *prs)
 162 {
 163         radiusstat_t *rs=(radiusstat_t *)prs;
 164         int i;
 165
 166         /* printing results */
 167         printf("\n");
 168         printf("===========================================================================================================\n");
 169         printf("RADIUS Response Time Delay (RTD) Statistics:\n");
 170         printf("Filter for statistics: %s\n",rs->filter?rs->filter:"");
 171         printf("Duplicate requests: %u\n",rs->req_dup_num);
 172         printf("Duplicate responses: %u\n",rs->rsp_dup_num);
 173         printf("Open requests: %u\n",rs->open_req_num);
 174         printf("Discarded responses: %u\n",rs->disc_rsp_num);
 175         printf("Type           | Messages   |    Min RTD    |    Max RTD    |    Avg RTD    | Min in Frame | Max in Frame |\n");
 176         for(i=0;i<RADIUS_CAT_NUM_TIMESTATS;i++) {
 177                 if(rs->rtd[i].num) {
 178                         printf("%s | %7u    | %8.2f msec | %8.2f msec | %8.2f msec |  %10u  |  %10u  |\n",
 179                                 val_to_str(i,radius_message_code,"Other  "),rs->rtd[i].num,
 180                                 nstime_to_msec(&(rs->rtd[i].min)), nstime_to_msec(&(rs->rtd[i].max)),
 181                                 get_average(&(rs->rtd[i].tot), rs->rtd[i].num),
 182                                 rs->rtd[i].min_num, rs->rtd[i].max_num
 183                         );
 184                 }
 185         }
 186         printf("===========================================================================================================\n");
 187 }
 188
 189
 190 static void
 191 radiusstat_init(const char *opt_arg, void* userdata _U_)
 192 {
 193         radiusstat_t *rs;
 194         int i;
 195         GString *error_string;
 196
 197         rs=g_new(radiusstat_t,1);
 198         if(!strncmp(opt_arg,"radius,rtd,",11)){
 199                 rs->filter=g_strdup(opt_arg+11);
 200         } else {
 201                 rs->filter=NULL;
 202         }
 203
 204         for(i=0;i<RADIUS_CAT_NUM_TIMESTATS;i++) {
 205                 rs->rtd[i].num=0;
 206                 rs->rtd[i].min_num=0;
 207                 rs->rtd[i].max_num=0;
 208                 rs->rtd[i].min.secs=0;
 209                 rs->rtd[i].min.nsecs=0;
 210                 rs->rtd[i].max.secs=0;
 211                 rs->rtd[i].max.nsecs=0;
 212                 rs->rtd[i].tot.secs=0;
 213                 rs->rtd[i].tot.nsecs=0;
 214         }
 215
 216         rs->open_req_num=0;
 217         rs->disc_rsp_num=0;
 218         rs->req_dup_num=0;
 219         rs->rsp_dup_num=0;
 220
 221         error_string=register_tap_listener("radius", rs, rs->filter, 0, NULL, radiusstat_packet, radiusstat_draw);
 222         if(error_string){
 223                 /* error, we failed to attach to the tap. clean up */
 224                 g_free(rs->filter);
 225                 g_free(rs);
 226
 227                 fprintf(stderr, "tshark: Couldn't register radius,rtd tap: %s\n",
 228                     error_string->str);
 229                 g_string_free(error_string, TRUE);
 230                 exit(1);
 231         }
 232 }
 233
 234
 235 void
 236 register_tap_listener_radiusstat(void)
 237 {
 238         register_stat_cmd_arg("radius,rtd", radiusstat_init, NULL);
 239 }
 240