2 * CAMEL Service Response Time statistics for tshark
3 * Copyright 2006 Florent Drouin (based on tap_h225rassrt.c from Lars Roland)
5 * Wireshark - Network traffic analyzer
6 * By Gerald Combs <gerald@wireshark.org>
7 * Copyright 1998 Gerald Combs
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version 2
12 * of the License, or (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #ifdef HAVE_SYS_TYPES_H
31 # include <sys/types.h>
35 #include "epan/packet_info.h"
37 #include "epan/value_string.h"
39 #include "epan/dissectors/packet-camel.h"
40 #include "epan/camel-persistentdata.h"
41 #include "timestats.h"
42 #include "epan/stat_cmd_args.h"
45 #define MIN(x,y) ((x) < (y) ? (x) : (y))
47 void register_tap_listener_camelsrt(void);
49 /* Save the the first NUM_RAS_STATS stats in the array to calculate percentile */
50 #define NUM_RAS_STATS 500000
52 /* Number of couple message Request/Response to analyze*/
55 /* used to keep track of the statistics for an entire program interface */
58 guint32 count[NB_CAMELSRT_CATEGORY];
59 timestat_t stats[NB_CAMELSRT_CATEGORY];
60 nstime_t delta_time[NB_CAMELSRT_CATEGORY][NUM_RAS_STATS];
63 /* Check if we have to inhibit the display or not
64 * cannot be static because it's exported in libwireshark.def
66 gboolean gcamel_StatSRT;
67 gboolean gtcap_StatSRT;
69 /* Reset the counter */
70 static void camelsrt_reset(void *phs)
72 struct camelsrt_t *hs=(struct camelsrt_t *)phs;
73 memset(hs,0,sizeof(struct camelsrt_t));
77 static int camelsrt_packet(void *phs,
78 packet_info *pinfo _U_,
79 epan_dissect_t *edt _U_,
82 struct camelsrt_t *hs=(struct camelsrt_t *)phs;
83 const struct camelsrt_info_t * pi=phi;
86 for (i=0; i<NB_CAMELSRT_CATEGORY; i++) {
87 if (pi->bool_msginfo[i] &&
88 pi->msginfo[i].is_delta_time
89 && pi->msginfo[i].request_available
90 && !pi->msginfo[i].is_duplicate ) {
92 time_stat_update(&(hs->stats[i]),
93 &(pi->msginfo[i].delta_time),
96 if (hs->count[i] < NUM_RAS_STATS) {
97 hs->delta_time[i][hs->count[i]++]
98 = pi->msginfo[i].delta_time;
106 static void camelsrt_draw(void *phs)
108 struct camelsrt_t *hs=(struct camelsrt_t *)phs;
111 int somme,iteration=0;
112 timestat_t *rtd_temp;
113 double x,delay,delay_max,delay_min,delta;
114 double criteria[NB_CRITERIA]={ 5.0, 10.0, 75.0, 90.0, 95.0,99.0,99.90 };
115 double delay_criteria[NB_CRITERIA];
118 printf("Camel Service Response Time (SRT) Statistics:\n");
119 printf("=================================================================================================\n");
120 printf("| Category | Measure | Min SRT | Max SRT | Avg SRT | Min frame | Max frame |\n");
121 printf("|-------------------------|---------|-----------|-----------|-----------|-----------|-----------|\n");
124 printf("|%24s |%8u |%8.2f s |%8.2f s |%8.2f s |%10u |%10u |\n",
125 val_to_str(j,camelSRTtype_naming,"Unknown Message 0x%02x"),
127 nstime_to_sec(&(hs->stats[j].min)),
128 nstime_to_sec(&(hs->stats[j].max)),
129 get_average(&(hs->stats[j].tot),hs->stats[j].num)/1000.0,
130 hs->stats[j].min_num,
133 for(j=2; j<NB_CAMELSRT_CATEGORY; j++) {
134 if(hs->stats[j].num==0){
135 printf("|%24s |%8u |%8.2f ms|%8.2f ms|%8.2f ms|%10u |%10u |\n",
136 val_to_str(j,camelSRTtype_naming,"Unknown Message 0x%02x"),
137 0, 0.0, 0.0, 0.0, 0, 0);
141 printf("|%24s |%8u |%8.2f ms|%8.2f ms|%8.2f ms|%10u |%10u |\n",
142 val_to_str(j,camelSRTtype_naming,"Unknown Message 0x%02x"),
144 MIN(9999,nstime_to_msec(&(hs->stats[j].min))),
145 MIN(9999,nstime_to_msec(&(hs->stats[j].max))),
146 MIN(9999,get_average(&(hs->stats[j].tot),hs->stats[j].num)),
147 hs->stats[j].min_num,
152 printf("=================================================================================================\n");
157 printf("| Category/Criteria |");
158 for(z=0; z<NB_CRITERIA; z++) printf("%7.2f%% |", criteria[z]);
161 printf("|-------------------------|");
162 for(z=0; z<NB_CRITERIA; z++) printf("---------|");
164 /* calculate the delay max to have a given number of messages (in percentage) */
165 for(j=2;j<NB_CAMELSRT_CATEGORY;j++) {
167 rtd_temp = &(hs->stats[j]);
169 if (hs->count[j]>0) {
170 /* Calculate the delay to answer to p% of the MS */
171 for(z=0; z<NB_CRITERIA; z++) {
173 delay_max=(double)rtd_temp->max.secs*1000 +(double)rtd_temp->max.nsecs/1000000;
174 delay_min=(double)rtd_temp->min.secs*1000 +(double)rtd_temp->min.nsecs/1000000;
176 delta=delay_max-delay_min;
177 while( (delta > 0.001) && (iteration < 10000) ) {
181 for(li=0;li<hs->count[j];li++) {
182 x=hs->delta_time[j][li].secs*1000
183 + (double)hs->delta_time[j][li].nsecs/1000000;
184 if (x <= delay) somme++;
186 if ( somme*100 > hs->count[j]*criteria[z] ) { /* trop grand */
188 delay=(delay_max+delay_min)/2;
189 delta=delay_max-delay_min;
190 } else { /* trop petit */
192 delay=(delay_max+delay_min)/2;
193 delta=delay_max-delay_min;
196 delay_criteria[z]=delay;
198 /* Append the result to the table */
199 printf("X%24s |", val_to_str(j, camelSRTtype_naming, "Unknown") );
200 for(z=0; z<NB_CRITERIA; z++) printf("%8.2f |", MIN(9999,delay_criteria[z]));
203 printf("X%24s |", val_to_str(j, camelSRTtype_naming, "Unknown") );
204 for(z=0; z<NB_CRITERIA; z++) printf("%8.2f |", 0.0);
208 printf("===========================");
209 for(z=0; z<NB_CRITERIA; z++) printf("==========");
213 static void camelsrt_init(const char *optarg, void* userdata _U_)
215 struct camelsrt_t *p_camelsrt;
216 const char *filter=NULL;
217 const char *emptyfilter="";
219 GString *error_string;
221 if(!strncmp(optarg,"camel,srt,",9)){
227 p_camelsrt = g_malloc(sizeof(struct camelsrt_t));
229 p_camelsrt->filter=g_malloc(strlen(filter)+1);
230 strcpy(p_camelsrt->filter,filter);
232 p_camelsrt->filter=NULL;
234 camelsrt_reset(p_camelsrt);
237 error_string=register_tap_listener("CAMEL",
244 error_string=register_tap_listener("CAMEL",
253 /* error, we failed to attach to the tap. clean up */
254 g_free(p_camelsrt->filter);
257 fprintf(stderr, "tshark: Couldn't register camel,srt tap: %s\n",
259 g_string_free(error_string, TRUE);
264 * If we are using tshark, we have to display the stats, even if the stats are not persistent
265 * As the frame are proceeded in the chronological order, we do not need persistent stats
266 * Whereas, with wireshark, it is not possible to have the correct display, if the stats are
267 * not saved along the analyze
274 void /* Next line mandatory */
275 register_tap_listener_camelsrt(void)
277 register_stat_cmd_arg("camel,srt", camelsrt_init, NULL);