nexmon – Rev 1
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/*
* randpkt.c
* ---------
* Creates random packet traces. Useful for debugging sniffers by testing
* assumptions about the veracity of the data found in the packet.
*
* Copyright (C) 1999 by Gilbert Ramirez <gram@alumni.rice.edu>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#include <glib.h>
#include <stdio.h>
#include <stdlib.h>
#include <wsutil/unicode-utils.h>
#include <wsutil/file_util.h>
#include <wsutil/filesystem.h>
#include <wsutil/privileges.h>
#ifdef HAVE_PLUGINS
#include <wsutil/plugins.h>
#endif
#include <wsutil/report_err.h>
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#endif
#ifndef HAVE_GETOPT_LONG
#include "wsutil/wsgetopt.h"
#endif
#include "randpkt_core/randpkt_core.h"
#ifdef HAVE_PLUGINS
/*
* Don't report failures to load plugins because most (non-wiretap) plugins
* *should* fail to load (because we're not linked against libwireshark and
* dissector plugins need libwireshark).
*/
static void
failure_message(const char *msg_format _U_, va_list ap _U_)
{
return;
}
#endif
/* Print usage statement and exit program */
static void
usage(gboolean is_error)
{
FILE *output;
char** abbrev_list;
char** longname_list;
unsigned i = 0;
if (!is_error) {
output = stdout;
}
else {
output = stderr;
}
fprintf(output, "Usage: randpkt [-b maxbytes] [-c count] [-t type] [-r] filename\n");
fprintf(output, "Default max bytes (per packet) is 5000\n");
fprintf(output, "Default count is 1000.\n");
fprintf(output, "-r: random packet type selection\n");
fprintf(output, "\n");
fprintf(output, "Types:\n");
/* Get the examples list */
randpkt_example_list(&abbrev_list, &longname_list);
while (abbrev_list[i] && longname_list[i]) {
fprintf(output, "\t%-16s%s\n", abbrev_list[i], longname_list[i]);
i++;
}
g_strfreev(abbrev_list);
g_strfreev(longname_list);
fprintf(output, "\nIf type is not specified, a random packet will be chosen\n\n");
exit(is_error ? 1 : 0);
}
int
main(int argc, char **argv)
{
int opt;
int produce_type = -1;
char *produce_filename = NULL;
int produce_max_bytes = 5000;
int produce_count = 1000;
randpkt_example *example;
guint8* type = NULL;
int allrandom = FALSE;
wtap_dumper *savedump;
static const struct option long_options[] = {
{"help", no_argument, NULL, 'h'},
{0, 0, 0, 0 }
};
#ifdef HAVE_PLUGINS
char *init_progfile_dir_error;
#endif
/*
* Get credential information for later use.
*/
init_process_policies();
init_open_routines();
#ifdef _WIN32
arg_list_utf_16to8(argc, argv);
create_app_running_mutex();
#endif /* _WIN32 */
#ifdef HAVE_PLUGINS
/* Register wiretap plugins */
if ((init_progfile_dir_error = init_progfile_dir(argv[0], main))) {
g_warning("randpkt: init_progfile_dir(): %s", init_progfile_dir_error);
g_free(init_progfile_dir_error);
} else {
/* Register all the plugin types we have. */
wtap_register_plugin_types(); /* Types known to libwiretap */
init_report_err(failure_message,NULL,NULL,NULL);
/* Scan for plugins. This does *not* call their registration routines;
that's done later. */
scan_plugins();
/* Register all libwiretap plugin modules. */
register_all_wiretap_modules();
}
#endif
while ((opt = getopt_long(argc, argv, "b:c:ht:r", long_options, NULL)) != -1) {
switch (opt) {
case 'b': /* max bytes */
produce_max_bytes = atoi(optarg);
if (produce_max_bytes > 65536) {
fprintf(stderr, "randpkt: Max bytes is 65536\n");
return 1;
}
break;
case 'c': /* count */
produce_count = atoi(optarg);
break;
case 't': /* type of packet to produce */
type = g_strdup(optarg);
break;
case 'h':
usage(FALSE);
break;
case 'r':
allrandom = TRUE;
break;
default:
usage(TRUE);
break;
}
}
/* any more command line parameters? */
if (argc > optind) {
produce_filename = argv[optind];
}
else {
usage(TRUE);
}
if (!allrandom) {
produce_type = randpkt_parse_type(type);
g_free(type);
example = randpkt_find_example(produce_type);
if (!example)
return 1;
randpkt_example_init(example, produce_filename, produce_max_bytes);
randpkt_loop(example, produce_count);
} else {
if (type) {
fprintf(stderr, "Can't set type in random mode\n");
return 2;
}
produce_type = randpkt_parse_type(NULL);
example = randpkt_find_example(produce_type);
if (!example)
return 1;
randpkt_example_init(example, produce_filename, produce_max_bytes);
while (produce_count-- > 0) {
randpkt_loop(example, 1);
produce_type = randpkt_parse_type(NULL);
savedump = example->dump;
example = randpkt_find_example(produce_type);
if (!example)
return 1;
example->dump = savedump;
}
}
if (!randpkt_example_close(example))
return 2;
return 0;
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/