68f94bd918
Change-Id: I65445cca6b16f750bf3a98fdfea228a51b46106c Reviewed-on: https://code.wireshark.org/review/20203 Reviewed-by: Michael Mann <mmann78@netscape.net> Petri-Dish: Dario Lombardo <lomato@gmail.com> Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org> Reviewed-by: Dario Lombardo <lomato@gmail.com>
508 lines
15 KiB
C
508 lines
15 KiB
C
/* Combine dump files, either by appending or by merging by timestamp
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* 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.
|
|
*
|
|
* Mergecap written by Scott Renfro <scott@renfro.org> based on
|
|
* editcap by Richard Sharpe and Guy Harris
|
|
*
|
|
*/
|
|
|
|
#include <config.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <glib.h>
|
|
|
|
#ifdef HAVE_GETOPT_H
|
|
#include <getopt.h>
|
|
#endif
|
|
|
|
#include <string.h>
|
|
|
|
#include <wiretap/wtap.h>
|
|
|
|
#ifndef HAVE_GETOPT_LONG
|
|
#include <wsutil/wsgetopt.h>
|
|
#endif
|
|
|
|
#include <wsutil/clopts_common.h>
|
|
#include <wsutil/cmdarg_err.h>
|
|
#include <wsutil/crash_info.h>
|
|
#include <wsutil/filesystem.h>
|
|
#include <wsutil/file_util.h>
|
|
#include <wsutil/privileges.h>
|
|
#include <wsutil/strnatcmp.h>
|
|
#include <ws_version_info.h>
|
|
|
|
#ifdef HAVE_PLUGINS
|
|
#include <wsutil/plugins.h>
|
|
#endif
|
|
|
|
#include <wsutil/report_err.h>
|
|
|
|
#include <wiretap/merge.h>
|
|
|
|
#ifdef _WIN32
|
|
#include <wsutil/unicode-utils.h>
|
|
#endif /* _WIN32 */
|
|
|
|
/*
|
|
* Show the usage
|
|
*/
|
|
static void
|
|
print_usage(FILE *output)
|
|
{
|
|
fprintf(output, "\n");
|
|
fprintf(output, "Usage: mergecap [options] -w <outfile>|- <infile> [<infile> ...]\n");
|
|
fprintf(output, "\n");
|
|
fprintf(output, "Output:\n");
|
|
fprintf(output, " -a concatenate rather than merge files.\n");
|
|
fprintf(output, " default is to merge based on frame timestamps.\n");
|
|
fprintf(output, " -s <snaplen> truncate packets to <snaplen> bytes of data.\n");
|
|
fprintf(output, " -w <outfile>|- set the output filename to <outfile> or '-' for stdout.\n");
|
|
fprintf(output, " -F <capture type> set the output file type; default is pcapng.\n");
|
|
fprintf(output, " an empty \"-F\" option will list the file types.\n");
|
|
fprintf(output, " -I <IDB merge mode> set the merge mode for Interface Description Blocks; default is 'all'.\n");
|
|
fprintf(output, " an empty \"-I\" option will list the merge modes.\n");
|
|
fprintf(output, "\n");
|
|
fprintf(output, "Miscellaneous:\n");
|
|
fprintf(output, " -h display this help and exit.\n");
|
|
fprintf(output, " -v verbose output.\n");
|
|
}
|
|
|
|
/*
|
|
* Report an error in command-line arguments.
|
|
*/
|
|
static void
|
|
mergecap_cmdarg_err(const char *fmt, va_list ap)
|
|
{
|
|
fprintf(stderr, "mergecap: ");
|
|
vfprintf(stderr, fmt, ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
/*
|
|
* Report additional information for an error in command-line arguments.
|
|
*/
|
|
static void
|
|
mergecap_cmdarg_err_cont(const char *fmt, va_list ap)
|
|
{
|
|
vfprintf(stderr, fmt, ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
struct string_elem {
|
|
const char *sstr; /* The short string */
|
|
const char *lstr; /* The long string */
|
|
};
|
|
|
|
static gint
|
|
string_compare(gconstpointer a, gconstpointer b)
|
|
{
|
|
return strcmp(((const struct string_elem *)a)->sstr,
|
|
((const struct string_elem *)b)->sstr);
|
|
}
|
|
|
|
static void
|
|
string_elem_print(gpointer data, gpointer not_used _U_)
|
|
{
|
|
fprintf(stderr, " %s - %s\n", ((struct string_elem *)data)->sstr,
|
|
((struct string_elem *)data)->lstr);
|
|
}
|
|
|
|
#ifdef HAVE_PLUGINS
|
|
/*
|
|
* General errors are reported with an console message in mergecap.
|
|
*/
|
|
static void
|
|
failure_message(const char *msg_format, va_list ap)
|
|
{
|
|
fprintf(stderr, "mergecap: ");
|
|
vfprintf(stderr, msg_format, ap);
|
|
fprintf(stderr, "\n");
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
list_capture_types(void) {
|
|
int i;
|
|
struct string_elem *captypes;
|
|
GSList *list = NULL;
|
|
|
|
captypes = g_new(struct string_elem,WTAP_NUM_FILE_TYPES_SUBTYPES);
|
|
|
|
fprintf(stderr, "mergecap: The available capture file types for the \"-F\" flag are:\n");
|
|
for (i = 0; i < WTAP_NUM_FILE_TYPES_SUBTYPES; i++) {
|
|
if (wtap_dump_can_open(i)) {
|
|
captypes[i].sstr = wtap_file_type_subtype_short_string(i);
|
|
captypes[i].lstr = wtap_file_type_subtype_string(i);
|
|
list = g_slist_insert_sorted(list, &captypes[i], string_compare);
|
|
}
|
|
}
|
|
g_slist_foreach(list, string_elem_print, NULL);
|
|
g_slist_free(list);
|
|
g_free(captypes);
|
|
}
|
|
|
|
static void
|
|
list_idb_merge_modes(void) {
|
|
int i;
|
|
|
|
fprintf(stderr, "mergecap: The available IDB merge modes for the \"-I\" flag are:\n");
|
|
for (i = 0; i < IDB_MERGE_MODE_MAX; i++) {
|
|
fprintf(stderr, " %s\n", merge_idb_merge_mode_to_string(i));
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
merge_callback(merge_event event, int num,
|
|
const merge_in_file_t in_files[], const guint in_file_count,
|
|
void *data _U_)
|
|
{
|
|
guint i;
|
|
|
|
switch (event) {
|
|
|
|
case MERGE_EVENT_INPUT_FILES_OPENED:
|
|
for (i = 0; i < in_file_count; i++) {
|
|
fprintf(stderr, "mergecap: %s is type %s.\n", in_files[i].filename,
|
|
wtap_file_type_subtype_string(wtap_file_type_subtype(in_files[i].wth)));
|
|
}
|
|
break;
|
|
|
|
case MERGE_EVENT_FRAME_TYPE_SELECTED:
|
|
/* for this event, num = frame_type */
|
|
if (num == WTAP_ENCAP_PER_PACKET) {
|
|
/*
|
|
* Find out why we had to choose WTAP_ENCAP_PER_PACKET.
|
|
*/
|
|
int first_frame_type, this_frame_type;
|
|
|
|
first_frame_type = wtap_file_encap(in_files[0].wth);
|
|
for (i = 1; i < in_file_count; i++) {
|
|
this_frame_type = wtap_file_encap(in_files[i].wth);
|
|
if (first_frame_type != this_frame_type) {
|
|
fprintf(stderr, "mergecap: multiple frame encapsulation types detected\n");
|
|
fprintf(stderr, " defaulting to WTAP_ENCAP_PER_PACKET\n");
|
|
fprintf(stderr, " %s had type %s (%s)\n",
|
|
in_files[0].filename,
|
|
wtap_encap_string(first_frame_type),
|
|
wtap_encap_short_string(first_frame_type));
|
|
fprintf(stderr, " %s had type %s (%s)\n",
|
|
in_files[i].filename,
|
|
wtap_encap_string(this_frame_type),
|
|
wtap_encap_short_string(this_frame_type));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
fprintf(stderr, "mergecap: selected frame_type %s (%s)\n",
|
|
wtap_encap_string(num),
|
|
wtap_encap_short_string(num));
|
|
break;
|
|
|
|
case MERGE_EVENT_READY_TO_MERGE:
|
|
fprintf(stderr, "mergecap: ready to merge records\n");
|
|
break;
|
|
|
|
case MERGE_EVENT_PACKET_WAS_READ:
|
|
/* for this event, num = count */
|
|
fprintf(stderr, "Record: %d\n", num);
|
|
break;
|
|
|
|
case MERGE_EVENT_DONE:
|
|
fprintf(stderr, "mergecap: merging complete\n");
|
|
break;
|
|
}
|
|
|
|
/* false = do not stop merging */
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
int
|
|
main(int argc, char *argv[])
|
|
{
|
|
GString *comp_info_str;
|
|
GString *runtime_info_str;
|
|
char *init_progfile_dir_error;
|
|
int opt;
|
|
static const struct option long_options[] = {
|
|
{"help", no_argument, NULL, 'h'},
|
|
{"version", no_argument, NULL, 'V'},
|
|
{0, 0, 0, 0 }
|
|
};
|
|
gboolean do_append = FALSE;
|
|
gboolean verbose = FALSE;
|
|
int in_file_count = 0;
|
|
guint32 snaplen = 0;
|
|
#ifdef PCAP_NG_DEFAULT
|
|
int file_type = WTAP_FILE_TYPE_SUBTYPE_PCAPNG; /* default to pcap format */
|
|
#else
|
|
int file_type = WTAP_FILE_TYPE_SUBTYPE_PCAP; /* default to pcapng format */
|
|
#endif
|
|
int err = 0;
|
|
gchar *err_info = NULL;
|
|
int err_fileno;
|
|
char *out_filename = NULL;
|
|
merge_result status = MERGE_OK;
|
|
idb_merge_mode mode = IDB_MERGE_MODE_MAX;
|
|
gboolean use_stdout = FALSE;
|
|
merge_progress_callback_t cb;
|
|
|
|
cmdarg_err_init(mergecap_cmdarg_err, mergecap_cmdarg_err_cont);
|
|
|
|
#ifdef _WIN32
|
|
arg_list_utf_16to8(argc, argv);
|
|
create_app_running_mutex();
|
|
#endif /* _WIN32 */
|
|
|
|
/* Get the compile-time version information string */
|
|
comp_info_str = get_compiled_version_info(NULL, NULL);
|
|
|
|
/* Get the run-time version information string */
|
|
runtime_info_str = get_runtime_version_info(NULL);
|
|
|
|
/* Add it to the information to be reported on a crash. */
|
|
ws_add_crash_info("Mergecap (Wireshark) %s\n"
|
|
"\n"
|
|
"%s"
|
|
"\n"
|
|
"%s",
|
|
get_ws_vcs_version_info(), comp_info_str->str, runtime_info_str->str);
|
|
g_string_free(comp_info_str, TRUE);
|
|
g_string_free(runtime_info_str, TRUE);
|
|
|
|
/*
|
|
* Get credential information for later use.
|
|
*/
|
|
init_process_policies();
|
|
|
|
/*
|
|
* Attempt to get the pathname of the directory containing the
|
|
* executable file.
|
|
*/
|
|
init_progfile_dir_error = init_progfile_dir(argv[0], main);
|
|
if (init_progfile_dir_error != NULL) {
|
|
fprintf(stderr,
|
|
"mergecap: Can't get pathname of directory containing the mergecap program: %s.\n",
|
|
init_progfile_dir_error);
|
|
g_free(init_progfile_dir_error);
|
|
}
|
|
|
|
wtap_init();
|
|
|
|
#ifdef HAVE_PLUGINS
|
|
init_report_err(failure_message,NULL,NULL,NULL);
|
|
|
|
/* Scan for plugins. This does *not* call their registration routines;
|
|
that's done later.
|
|
|
|
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).*/
|
|
scan_plugins(DONT_REPORT_LOAD_FAILURE);
|
|
|
|
/* Register all libwiretap plugin modules. */
|
|
register_all_wiretap_modules();
|
|
#endif
|
|
|
|
/* Process the options first */
|
|
while ((opt = getopt_long(argc, argv, "aF:hI:s:vVw:", long_options, NULL)) != -1) {
|
|
|
|
switch (opt) {
|
|
case 'a':
|
|
do_append = !do_append;
|
|
break;
|
|
|
|
case 'F':
|
|
file_type = wtap_short_string_to_file_type_subtype(optarg);
|
|
if (file_type < 0) {
|
|
fprintf(stderr, "mergecap: \"%s\" isn't a valid capture file type\n",
|
|
optarg);
|
|
list_capture_types();
|
|
status = MERGE_ERR_INVALID_OPTION;
|
|
goto clean_exit;
|
|
}
|
|
break;
|
|
|
|
case 'h':
|
|
printf("Mergecap (Wireshark) %s\n"
|
|
"Merge two or more capture files into one.\n"
|
|
"See https://www.wireshark.org for more information.\n",
|
|
get_ws_vcs_version_info());
|
|
print_usage(stdout);
|
|
goto clean_exit;
|
|
break;
|
|
|
|
case 'I':
|
|
mode = merge_string_to_idb_merge_mode(optarg);
|
|
if (mode == IDB_MERGE_MODE_MAX) {
|
|
fprintf(stderr, "mergecap: \"%s\" isn't a valid IDB merge mode\n",
|
|
optarg);
|
|
list_idb_merge_modes();
|
|
status = MERGE_ERR_INVALID_OPTION;
|
|
goto clean_exit;
|
|
}
|
|
break;
|
|
|
|
case 's':
|
|
snaplen = get_nonzero_guint32(optarg, "snapshot length");
|
|
break;
|
|
|
|
case 'v':
|
|
verbose = TRUE;
|
|
break;
|
|
|
|
case 'V':
|
|
comp_info_str = get_compiled_version_info(NULL, NULL);
|
|
runtime_info_str = get_runtime_version_info(NULL);
|
|
show_version("Mergecap (Wireshark)", comp_info_str, runtime_info_str);
|
|
g_string_free(comp_info_str, TRUE);
|
|
g_string_free(runtime_info_str, TRUE);
|
|
goto clean_exit;
|
|
break;
|
|
|
|
case 'w':
|
|
out_filename = optarg;
|
|
break;
|
|
|
|
case '?': /* Bad options if GNU getopt */
|
|
switch(optopt) {
|
|
case'F':
|
|
list_capture_types();
|
|
break;
|
|
case'I':
|
|
list_idb_merge_modes();
|
|
break;
|
|
default:
|
|
print_usage(stderr);
|
|
}
|
|
status = MERGE_ERR_INVALID_OPTION;
|
|
goto clean_exit;
|
|
break;
|
|
}
|
|
}
|
|
|
|
cb.callback_func = merge_callback;
|
|
cb.data = NULL;
|
|
|
|
/* check for proper args; at a minimum, must have an output
|
|
* filename and one input file
|
|
*/
|
|
in_file_count = argc - optind;
|
|
if (!out_filename) {
|
|
fprintf(stderr, "mergecap: an output filename must be set with -w\n");
|
|
fprintf(stderr, " run with -h for help\n");
|
|
status = MERGE_ERR_INVALID_OPTION;
|
|
goto clean_exit;
|
|
}
|
|
if (in_file_count < 1) {
|
|
fprintf(stderr, "mergecap: No input files were specified\n");
|
|
return 1;
|
|
}
|
|
|
|
/* setting IDB merge mode must use PCAPNG output */
|
|
if (mode != IDB_MERGE_MODE_MAX && file_type != WTAP_FILE_TYPE_SUBTYPE_PCAPNG) {
|
|
fprintf(stderr, "The IDB merge mode can only be used with PCAPNG output format\n");
|
|
status = MERGE_ERR_INVALID_OPTION;
|
|
goto clean_exit;
|
|
}
|
|
|
|
/* if they didn't set IDB merge mode, set it to our default */
|
|
if (mode == IDB_MERGE_MODE_MAX) {
|
|
mode = IDB_MERGE_MODE_ALL_SAME;
|
|
}
|
|
|
|
/* open the outfile */
|
|
if (strcmp(out_filename, "-") == 0) {
|
|
/* merge the files to the standard output */
|
|
use_stdout = TRUE;
|
|
status = merge_files_to_stdout(file_type,
|
|
(const char *const *) &argv[optind],
|
|
in_file_count, do_append, mode, snaplen,
|
|
"mergecap", verbose ? &cb : NULL,
|
|
&err, &err_info, &err_fileno);
|
|
} else {
|
|
/* merge the files to the outfile */
|
|
status = merge_files(out_filename, file_type,
|
|
(const char *const *) &argv[optind], in_file_count,
|
|
do_append, mode, snaplen, "mergecap", verbose ? &cb : NULL,
|
|
&err, &err_info, &err_fileno);
|
|
}
|
|
|
|
switch (status) {
|
|
case MERGE_OK:
|
|
break;
|
|
|
|
case MERGE_USER_ABORTED:
|
|
/* we don't catch SIGINT/SIGTERM (yet?), so we couldn't have aborted */
|
|
g_assert(FALSE);
|
|
break;
|
|
|
|
case MERGE_ERR_CANT_OPEN_INFILE:
|
|
fprintf(stderr, "mergecap: Can't open %s: %s (%s)\n", argv[optind + err_fileno],
|
|
wtap_strerror(err), err_info ? err_info : "no more information");
|
|
break;
|
|
|
|
case MERGE_ERR_CANT_OPEN_OUTFILE:
|
|
if (use_stdout) {
|
|
fprintf(stderr, "mergecap: Can't set up the standard output: %s\n",
|
|
wtap_strerror(err));
|
|
} else {
|
|
fprintf(stderr, "mergecap: Can't open or create %s: %s\n", out_filename,
|
|
wtap_strerror(err));
|
|
}
|
|
break;
|
|
|
|
case MERGE_ERR_CANT_READ_INFILE: /* fall through */
|
|
case MERGE_ERR_BAD_PHDR_INTERFACE_ID:
|
|
case MERGE_ERR_CANT_WRITE_OUTFILE:
|
|
case MERGE_ERR_CANT_CLOSE_OUTFILE:
|
|
default:
|
|
fprintf(stderr, "mergecap: %s\n", err_info ? err_info : "unknown error");
|
|
break;
|
|
}
|
|
|
|
g_free(err_info);
|
|
|
|
clean_exit:
|
|
wtap_cleanup();
|
|
free_progdirs();
|
|
#ifdef HAVE_PLUGINS
|
|
plugins_cleanup();
|
|
#endif
|
|
return (status == MERGE_OK) ? 0 : 2;
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 2
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=2 tabstop=8 expandtab:
|
|
* :indentSize=2:tabSize=8:noTabs=true:
|
|
*/
|
|
|