2 * Helper routines common to all SRT taps.
4 * Wireshark - Network traffic analyzer
5 * By Gerald Combs <gerald@wireshark.org>
6 * Copyright 1998 Gerald Combs
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
28 #include "packet_info.h"
29 #include "srt_table.h"
32 int proto_id; /* protocol id (0-indexed) */
33 const char* tap_listen_str; /* string used in register_tap_listener (NULL to use protocol name) */
34 int max_tables; /* Maximum number of tables expected (used by GUI to determine how to display tables) */
35 tap_packet_cb srt_func; /* function to be called for new incoming packets for SRT */
36 srt_init_cb srt_init; /* function to create dissector SRT tables */
37 srt_param_handler_cb param_cb; /* function to parse parameters of optional arguments of tap string */
38 void* param_data; /* Storage for tap parameter data */
41 int get_srt_proto_id(register_srt_t* srt)
49 const char* get_srt_tap_listener_name(register_srt_t* srt)
51 return srt->tap_listen_str;
54 int get_srt_max_tables(register_srt_t* srt)
56 return srt->max_tables;
59 tap_packet_cb get_srt_packet_func(register_srt_t* srt)
64 void set_srt_table_param_data(register_srt_t* srt, void* data)
66 srt->param_data = data;
69 void* get_srt_table_param_data(register_srt_t* srt)
71 return srt->param_data;
75 free_srt_table_data(srt_stat_table *rst)
79 for(i=0;i<rst->num_procs;i++){
80 g_free(rst->procedures[i].procedure);
81 rst->procedures[i].procedure=NULL;
83 g_free(rst->filter_string);
84 rst->filter_string=NULL;
85 g_free(rst->procedures);
90 void free_srt_table(register_srt_t *srt, GArray* srt_array, srt_gui_free_cb gui_callback, void *callback_data)
93 srt_stat_table *srt_table;
95 for (i = 0; i < srt_array->len; i++)
97 srt_table = g_array_index(srt_array, srt_stat_table*, i);
99 /* Give GUI the first crack at it before we clean up */
101 gui_callback(srt_table, callback_data);
103 free_srt_table_data(srt_table);
106 /* Clear the tables */
107 g_array_set_size(srt_array, 0);
109 /* Clear out any possible parameter data */
110 g_free(srt->param_data);
111 srt->param_data = NULL;
114 static void reset_srt_table_data(srt_stat_table *rst)
118 for(i=0;i<rst->num_procs;i++){
119 time_stat_init(&rst->procedures[i].stats);
123 void reset_srt_table(GArray* srt_array, srt_gui_reset_cb gui_callback, void *callback_data)
126 srt_stat_table *srt_table;
128 for (i = 0; i < srt_array->len; i++)
130 srt_table = g_array_index(srt_array, srt_stat_table*, i);
132 /* Give GUI the first crack at it before we clean up */
134 gui_callback(srt_table, callback_data);
136 reset_srt_table_data(srt_table);
140 static GSList *registered_srt_tables = NULL;
142 register_srt_t* get_srt_table_by_name(const char* name)
144 guint i, size = g_slist_length(registered_srt_tables);
148 for (i = 0; i < size; i++) {
149 slist = g_slist_nth(registered_srt_tables, i);
150 srt = (register_srt_t*)slist->data;
152 if (strcmp(name, proto_get_protocol_filter_name(srt->proto_id)) == 0)
159 gchar* srt_table_get_tap_string(register_srt_t* srt)
161 GString *cmd_str = g_string_new(proto_get_protocol_filter_name(srt->proto_id));
162 g_string_append(cmd_str, ",srt");
163 return g_string_free(cmd_str, FALSE);
166 void srt_table_get_filter(register_srt_t* srt, const char *opt_arg, const char **filter, char** err)
168 gchar* cmd_str = srt_table_get_tap_string(srt);
169 guint len = (guint32)strlen(cmd_str);
174 if(!strncmp(opt_arg, cmd_str, len))
176 if (srt->param_cb != NULL)
178 pos = srt->param_cb(srt, opt_arg + len, err);
186 if (opt_arg[pos] == ',')
188 *filter = opt_arg + pos+1;
195 void srt_table_dissector_init(register_srt_t* srt, GArray* srt_array, srt_gui_init_cb gui_callback, void *callback_data)
197 srt->srt_init(srt, srt_array, gui_callback, callback_data);
201 insert_sorted_by_table_name(gconstpointer aparam, gconstpointer bparam)
203 const register_srt_t *a = (const register_srt_t *)aparam;
204 const register_srt_t *b = (const register_srt_t *)bparam;
206 return g_ascii_strcasecmp(proto_get_protocol_short_name(find_protocol_by_id(a->proto_id)), proto_get_protocol_short_name(find_protocol_by_id(b->proto_id)));
210 register_srt_table(const int proto_id, const char* tap_listener, int max_tables, tap_packet_cb srt_packet_func, srt_init_cb init_cb, srt_param_handler_cb param_cb)
212 register_srt_t *table;
213 DISSECTOR_ASSERT(init_cb);
214 DISSECTOR_ASSERT(srt_packet_func);
216 table = g_new(register_srt_t,1);
218 table->proto_id = proto_id;
219 if (tap_listener != NULL)
220 table->tap_listen_str = tap_listener;
222 table->tap_listen_str = proto_get_protocol_filter_name(proto_id);
223 table->max_tables = max_tables;
224 table->srt_func = srt_packet_func;
225 table->srt_init = init_cb;
226 table->param_cb = param_cb;
227 table->param_data = NULL;
229 registered_srt_tables = g_slist_insert_sorted(registered_srt_tables, table, insert_sorted_by_table_name);
232 void srt_table_iterate_tables(GFunc func, gpointer user_data)
234 g_slist_foreach(registered_srt_tables, func, user_data);
238 init_srt_table(const char *name, const char *short_name, GArray *srt_array, int num_procs, const char* proc_column_name,
239 const char *filter_string, srt_gui_init_cb gui_callback, void* gui_data, void* table_specific_data)
242 srt_stat_table *table = g_new(srt_stat_table, 1);
245 table->filter_string=g_strdup(filter_string);
247 table->filter_string=NULL;
251 table->short_name = short_name;
252 table->proc_column_name = proc_column_name;
253 table->num_procs=num_procs;
254 table->procedures=(srt_procedure_t *)g_malloc(sizeof(srt_procedure_t)*num_procs);
255 for(i=0;i<num_procs;i++){
256 time_stat_init(&table->procedures[i].stats);
257 table->procedures[i].index = 0;
258 table->procedures[i].procedure = NULL;
261 g_array_insert_val(srt_array, srt_array->len, table);
263 table->table_specific_data = table_specific_data;
266 gui_callback(table, gui_data);
272 init_srt_table_row(srt_stat_table *rst, int indx, const char *procedure)
274 /* we have discovered a new procedure. Extend the table accordingly */
275 if(indx>=rst->num_procs){
276 int old_num_procs=rst->num_procs;
279 rst->num_procs=indx+1;
280 rst->procedures=(srt_procedure_t *)g_realloc(rst->procedures, sizeof(srt_procedure_t)*(rst->num_procs));
281 for(i=old_num_procs;i<rst->num_procs;i++){
282 time_stat_init(&rst->procedures[i].stats);
283 rst->procedures[i].index = i;
284 rst->procedures[i].procedure=NULL;
287 rst->procedures[indx].index = indx;
288 rst->procedures[indx].procedure=g_strdup(procedure);
292 add_srt_table_data(srt_stat_table *rst, int indx, const nstime_t *req_time, packet_info *pinfo)
297 g_assert(indx >= 0 && indx < rst->num_procs);
298 rp=&rst->procedures[indx];
300 /* calculate time delta between request and reply */
302 nstime_delta(&delta, &t, req_time);
304 time_stat_update(&rp->stats, &delta, pinfo);
313 * indent-tabs-mode: nil
316 * ex: set shiftwidth=4 tabstop=8 expandtab:
317 * :indentSize=4:tabSize=8:noTabs=true: