2000-01-14 06:46:00 +00:00
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/* tethereal.c
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*
|
2002-01-29 05:38:56 +00:00
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* $Id: tethereal.c,v 1.120 2002/01/29 05:38:55 guy Exp $
|
2000-01-14 06:46:00 +00:00
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*
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* Ethereal - Network traffic analyzer
|
Enable "Match Selected" only if there's a field selected *and* we can do
a "Match Selected" on it - we can't do a "Match Selected" if the field
has no value (e.g., FT_NULL) and has a length of 0.
If we unselect the current packet, we don't have a protocol tree, so we
don't have a currently selected field - clear the "Match Selected" menu
item and the display in the status line of information about the
currently selected field.
Move the low-level statusbar manipulation into "gtk/main.c", in routines
whose API doesn't expose anything GTK+-ish.
"close_cap_file()" calls one of those routines to clear out the status
bar, so it doesn't need to take a pointer to the statusbar widget as an
argument.
"clear_tree_and_hex_views()" is purely a display-manipulating routine;
move it to "gtk/proto_draw.c".
Extract from "tree_view_unselect_row_cb()" an "unselect_field()" routine
to do all the work that needs to be done if the currently selected
protocol tree row is unselected, and call it if the currently selected
packet list row is unselected (if it's unselected, there *is* no
protocol tree, so no row can be selected), as well as from
"tree_view_unselect_row_cb()".
Before pushing a new field-description message onto the statusbar, pop
the old one off.
Get rid of an unused variable (set, but not used).
svn path=/trunk/; revision=3513
2001-06-05 07:39:31 +00:00
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* By Gerald Combs <gerald@ethereal.com>
|
2000-01-14 06:46:00 +00:00
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* Copyright 1998 Gerald Combs
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*
|
2001-11-13 23:55:44 +00:00
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* Text-mode variant, by Gilbert Ramirez <gram@alumni.rice.edu>
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* and Guy Harris <guy@alum.mit.edu>.
|
2000-01-14 06:46:00 +00:00
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*
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* This program is free software; you can redistribute it and/or
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|
* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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|
* of the License, or (at your option) any later version.
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*
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|
* This program is distributed in the hope that it will be useful,
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|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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|
|
|
* GNU General Public License for more details.
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*
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|
* You should have received a copy of the GNU General Public License
|
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|
* along with this program; if not, write to the Free Software
|
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|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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|
*/
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|
#ifdef HAVE_CONFIG_H
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|
|
# include "config.h"
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|
|
#endif
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#include <stdlib.h>
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|
|
#include <stdio.h>
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|
#include <string.h>
|
2001-12-04 07:32:05 +00:00
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|
#include <ctype.h>
|
2000-07-05 02:06:58 +00:00
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|
#include <locale.h>
|
2001-04-18 05:45:58 +00:00
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|
#include <limits.h>
|
2000-01-14 06:46:00 +00:00
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|
#ifdef HAVE_UNISTD_H
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|
|
#include <unistd.h>
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|
|
#endif
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|
#include <errno.h>
|
2000-08-11 13:37:21 +00:00
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|
|
#ifdef HAVE_SYS_TYPES_H
|
2000-01-14 06:46:00 +00:00
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|
#include <sys/types.h>
|
2000-08-11 13:37:21 +00:00
|
|
|
#endif
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|
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|
|
#ifdef HAVE_SYS_STAT_H
|
2000-01-14 06:46:00 +00:00
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|
#include <sys/stat.h>
|
2000-08-11 13:37:21 +00:00
|
|
|
#endif
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|
#ifdef HAVE_FCNTL_H
|
2000-01-14 06:46:00 +00:00
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|
#include <fcntl.h>
|
2000-08-11 13:37:21 +00:00
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|
#endif
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|
2000-01-14 06:46:00 +00:00
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#include <signal.h>
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|
2001-01-29 00:09:38 +00:00
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#ifdef HAVE_LIBPCAP
|
2001-01-28 23:56:29 +00:00
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|
#include <pcap.h>
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
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#include <setjmp.h>
|
2001-01-29 00:09:38 +00:00
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|
#endif
|
2001-01-28 23:56:29 +00:00
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|
2001-07-05 00:34:42 +00:00
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|
#ifdef HAVE_LIBZ
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|
#include <zlib.h> /* to get the libz version number */
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|
#endif
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|
2000-01-14 06:46:00 +00:00
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|
#ifdef NEED_SNPRINTF_H
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# include "snprintf.h"
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|
|
#endif
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|
#if defined(HAVE_UCD_SNMP_SNMP_H)
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|
#ifdef HAVE_UCD_SNMP_VERSION_H
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|
#include <ucd-snmp/version.h>
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|
|
#endif /* HAVE_UCD_SNMP_VERSION_H */
|
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|
#elif defined(HAVE_SNMP_SNMP_H)
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|
|
#ifdef HAVE_SNMP_VERSION_H
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|
|
#include <snmp/version.h>
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|
|
#endif /* HAVE_SNMP_VERSION_H */
|
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|
#endif /* SNMP */
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|
#ifdef NEED_STRERROR_H
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|
#include "strerror.h"
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|
|
#endif
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|
2000-03-28 20:20:11 +00:00
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|
#ifdef NEED_GETOPT_H
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|
#include "getopt.h"
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|
#endif
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|
2000-09-27 04:55:05 +00:00
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|
#include <glib.h>
|
2002-01-21 07:37:49 +00:00
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|
#include <epan/epan.h>
|
2000-09-27 04:55:05 +00:00
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|
2000-01-14 06:46:00 +00:00
|
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|
#include "globals.h"
|
2002-01-21 07:37:49 +00:00
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|
#include <epan/timestamp.h>
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|
#include <epan/packet.h>
|
2000-01-14 06:46:00 +00:00
|
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|
#include "file.h"
|
|
|
|
#include "prefs.h"
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|
|
#include "column.h"
|
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|
|
#include "print.h"
|
2002-01-21 07:37:49 +00:00
|
|
|
#include <epan/resolv.h>
|
2000-01-14 06:46:00 +00:00
|
|
|
#include "util.h"
|
2001-11-09 07:44:51 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
#include "pcap-util.h"
|
|
|
|
#endif
|
2002-01-21 07:37:49 +00:00
|
|
|
#include <epan/conversation.h>
|
2001-06-08 06:27:16 +00:00
|
|
|
#include "reassemble.h"
|
2002-01-21 07:37:49 +00:00
|
|
|
#include <epan/plugins.h>
|
2001-04-02 00:38:36 +00:00
|
|
|
#include "register.h"
|
2001-12-04 07:32:05 +00:00
|
|
|
#include "conditions.h"
|
|
|
|
#include "capture_stop_conditions.h"
|
2001-12-04 08:26:00 +00:00
|
|
|
#include "ringbuffer.h"
|
2002-01-21 07:37:49 +00:00
|
|
|
#include <epan/epan_dissect.h>
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2001-04-03 05:26:27 +00:00
|
|
|
#ifdef WIN32
|
|
|
|
#include "capture-wpcap.h"
|
|
|
|
#endif
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
static guint32 firstsec, firstusec;
|
|
|
|
static guint32 prevsec, prevusec;
|
2001-03-27 06:48:12 +00:00
|
|
|
static GString *comp_info_str;
|
2000-01-14 06:46:00 +00:00
|
|
|
static gboolean verbose;
|
2000-01-17 07:49:03 +00:00
|
|
|
static gboolean print_hex;
|
2001-02-18 03:38:44 +00:00
|
|
|
static gboolean line_buffered;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
typedef struct _loop_data {
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
gboolean go; /* TRUE as long as we're supposed to keep capturing */
|
2000-01-14 06:46:00 +00:00
|
|
|
gint linktype;
|
|
|
|
pcap_t *pch;
|
|
|
|
wtap_dumper *pdh;
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
jmp_buf stopenv;
|
2000-01-14 06:46:00 +00:00
|
|
|
} loop_data;
|
|
|
|
|
|
|
|
static loop_data ld;
|
|
|
|
|
2002-01-11 11:04:03 +00:00
|
|
|
static int capture(volatile int, int);
|
2000-01-14 06:46:00 +00:00
|
|
|
static void capture_pcap_cb(u_char *, const struct pcap_pkthdr *,
|
|
|
|
const u_char *);
|
|
|
|
static void capture_cleanup(int);
|
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|
|
#endif
|
|
|
|
|
2000-01-22 07:19:34 +00:00
|
|
|
typedef struct {
|
|
|
|
capture_file *cf;
|
|
|
|
wtap_dumper *pdh;
|
|
|
|
} cb_args_t;
|
|
|
|
|
|
|
|
static int load_cap_file(capture_file *, int);
|
2001-10-04 08:30:36 +00:00
|
|
|
static void wtap_dispatch_cb_write(u_char *, const struct wtap_pkthdr *, long,
|
2000-05-19 23:07:04 +00:00
|
|
|
union wtap_pseudo_header *, const u_char *);
|
2001-02-10 09:08:14 +00:00
|
|
|
static void show_capture_file_io_error(const char *, int, gboolean);
|
2001-10-04 08:30:36 +00:00
|
|
|
static void wtap_dispatch_cb_print(u_char *, const struct wtap_pkthdr *, long,
|
2000-05-19 23:07:04 +00:00
|
|
|
union wtap_pseudo_header *, const u_char *);
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2000-06-27 04:36:03 +00:00
|
|
|
capture_file cfile;
|
2000-01-14 06:46:00 +00:00
|
|
|
FILE *data_out_file = NULL;
|
|
|
|
ts_type timestamp_type = RELATIVE;
|
2001-01-04 00:16:43 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2000-09-15 05:32:49 +00:00
|
|
|
static int promisc_mode = TRUE;
|
2001-01-04 00:16:43 +00:00
|
|
|
#endif
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
static void
|
2000-01-17 08:06:42 +00:00
|
|
|
print_usage(void)
|
|
|
|
{
|
|
|
|
int i;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2001-03-27 06:48:12 +00:00
|
|
|
fprintf(stderr, "This is GNU t%s %s, compiled %s\n", PACKAGE, VERSION,
|
|
|
|
comp_info_str->str);
|
2000-01-24 05:13:45 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-12-04 07:32:05 +00:00
|
|
|
fprintf(stderr, "t%s [ -DvVhlp ] [ -a <capture autostop condition> ] ...\n",
|
|
|
|
PACKAGE);
|
|
|
|
fprintf(stderr, "\t[ -b <number of ring buffer files> ] [ -c <count> ]\n");
|
|
|
|
fprintf(stderr, "\t[ -f <capture filter> ] [ -F <capture file type> ]\n");
|
|
|
|
fprintf(stderr, "\t[ -i <interface> ] [ -n ] [ -N <resolving> ]\n");
|
2001-05-31 08:36:46 +00:00
|
|
|
fprintf(stderr, "\t[ -o <preference setting> ] ... [ -r <infile> ] [ -R <read filter> ]\n");
|
|
|
|
fprintf(stderr, "\t[ -s <snaplen> ] [ -t <time stamp format> ] [ -w <savefile> ] [ -x ]\n");
|
2000-01-24 05:13:45 +00:00
|
|
|
#else
|
2001-05-31 08:36:46 +00:00
|
|
|
fprintf(stderr, "t%s [ -vVhl ] [ -F <capture file type> ] [ -n ] [ -N <resolving> ]\n", PACKAGE);
|
|
|
|
fprintf(stderr, "\t[ -o <preference setting> ] ... [ -r <infile> ] [ -R <read filter> ]\n");
|
|
|
|
fprintf(stderr, "\t[ -t <time stamp format> ] [ -w <savefile> ] [ -x ]\n");
|
2000-01-24 05:13:45 +00:00
|
|
|
#endif
|
2000-01-17 08:06:42 +00:00
|
|
|
fprintf(stderr, "Valid file type arguments to the \"-F\" flag:\n");
|
|
|
|
for (i = 0; i < WTAP_NUM_FILE_TYPES; i++) {
|
|
|
|
if (wtap_dump_can_open(i))
|
|
|
|
fprintf(stderr, "\t%s - %s\n",
|
|
|
|
wtap_file_type_short_string(i), wtap_file_type_string(i));
|
|
|
|
}
|
|
|
|
fprintf(stderr, "\tdefault is libpcap\n");
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
|
2001-12-04 07:32:05 +00:00
|
|
|
static int
|
2001-04-18 05:45:58 +00:00
|
|
|
get_positive_int(const char *string, const char *name)
|
|
|
|
{
|
|
|
|
long number;
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
number = strtol(string, &p, 10);
|
|
|
|
if (p == string || *p != '\0') {
|
|
|
|
fprintf(stderr, "tethereal: The specified %s \"%s\" is not a decimal number\n",
|
|
|
|
name, string);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
if (number < 0) {
|
|
|
|
fprintf(stderr, "tethereal: The specified %s \"%s\" is a negative number\n",
|
|
|
|
name, string);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
if (number > INT_MAX) {
|
|
|
|
fprintf(stderr, "tethereal: The specified %s \"%s\" is too large (greater than %d)\n",
|
|
|
|
name, string, INT_MAX);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
return number;
|
|
|
|
}
|
|
|
|
|
2002-01-10 09:51:23 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-12-04 07:32:05 +00:00
|
|
|
/*
|
|
|
|
* Given a string of the form "<autostop criterion>:<value>", as might appear
|
|
|
|
* as an argument to a "-a" option, parse it and set the criterion in
|
|
|
|
* question. Return an indication of whether it succeeded or failed
|
|
|
|
* in some fashion.
|
|
|
|
*/
|
|
|
|
static gboolean
|
|
|
|
set_autostop_criterion(const char *autostoparg)
|
|
|
|
{
|
|
|
|
u_char *p, *colonp;
|
|
|
|
|
|
|
|
colonp = strchr(autostoparg, ':');
|
|
|
|
if (colonp == NULL)
|
|
|
|
return FALSE;
|
|
|
|
|
|
|
|
p = colonp;
|
|
|
|
*p++ = '\0';
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Skip over any white space (there probably won't be any, but
|
|
|
|
* as we allow it in the preferences file, we might as well
|
|
|
|
* allow it here).
|
|
|
|
*/
|
|
|
|
while (isspace(*p))
|
|
|
|
p++;
|
|
|
|
if (*p == '\0') {
|
|
|
|
/*
|
|
|
|
* Put the colon back, so if our caller uses, in an
|
|
|
|
* error message, the string they passed us, the message
|
|
|
|
* looks correct.
|
|
|
|
*/
|
|
|
|
*colonp = ':';
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
if (strcmp(autostoparg,"duration") == 0) {
|
|
|
|
cfile.autostop_duration = get_positive_int(p,"autostop duration");
|
|
|
|
} else if (strcmp(autostoparg,"filesize") == 0) {
|
|
|
|
cfile.autostop_filesize = get_positive_int(p,"autostop filesize");
|
|
|
|
} else {
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
*colonp = ':'; /* put the colon back */
|
|
|
|
return TRUE;
|
|
|
|
}
|
2002-01-10 09:51:23 +00:00
|
|
|
#endif
|
2001-12-04 07:32:05 +00:00
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
int
|
|
|
|
main(int argc, char *argv[])
|
|
|
|
{
|
|
|
|
int opt, i;
|
|
|
|
extern char *optarg;
|
|
|
|
gboolean arg_error = FALSE;
|
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-07-27 07:10:13 +00:00
|
|
|
#ifdef HAVE_PCAP_VERSION
|
2000-01-14 06:46:00 +00:00
|
|
|
extern char pcap_version[];
|
2001-07-27 07:10:13 +00:00
|
|
|
#endif /* HAVE_PCAP_VERSION */
|
|
|
|
#endif /* HAVE_LIBPCAP */
|
2000-11-20 17:08:20 +00:00
|
|
|
|
|
|
|
#ifdef WIN32
|
|
|
|
WSADATA wsaData;
|
|
|
|
#endif
|
|
|
|
|
2001-10-22 22:59:26 +00:00
|
|
|
char *gpf_path;
|
|
|
|
const char *pf_path;
|
Add support for a global "ethereal.conf" preferences file, stored in the
same directory as the "manuf" file ("/etc" or "/usr/local/etc", most
likely).
Add a mechanism to allow modules (e.g., dissectors) to register
preference values, which:
can be put into the global or the user's preference file;
can be set from the command line, with arguments to the "-o"
flag;
can be set from tabs in the "Preferences" dialog box.
Use that mechanism to register the "Decode IPv4 TOS field as DiffServ
field" variable for IP as a preference.
Stuff that still needs to be done:
documenting the API for registering preferences;
documenting the "-o" values in the man page (probably needs a
flag similar to "-G", and a Perl script to turn the output into
documentation as is done with the list of field);
handling error checking for numeric values (range checking,
making sure that if the user changes the variable from the GUI
they change it to a valid numeric value);
using the callbacks to, for example, update the display when
preferences are changed (could be expensive);
panic if the user specifies a numeric value with a base other
than 10, 8, or 16.
We may also want to clean up the existing wired-in preferences not to
take effect the instant you tweak the widget, and to add an "Apply"
button to the "Preferences" dialog.
svn path=/trunk/; revision=2117
2000-07-05 09:41:07 +00:00
|
|
|
int gpf_open_errno, pf_open_errno;
|
2000-01-14 06:46:00 +00:00
|
|
|
int err;
|
2000-01-15 06:05:21 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2000-02-22 07:07:55 +00:00
|
|
|
gboolean capture_filter_specified = FALSE;
|
2001-12-04 07:32:05 +00:00
|
|
|
guint packet_count = 0;
|
2001-03-27 06:16:11 +00:00
|
|
|
GList *if_list, *if_entry;
|
2000-01-15 06:05:21 +00:00
|
|
|
gchar err_str[PCAP_ERRBUF_SIZE];
|
|
|
|
#else
|
2000-01-14 06:46:00 +00:00
|
|
|
gboolean capture_option_specified = FALSE;
|
|
|
|
#endif
|
2001-05-31 08:36:46 +00:00
|
|
|
int out_file_type = WTAP_FILE_PCAP;
|
2000-01-14 06:46:00 +00:00
|
|
|
gchar *cf_name = NULL, *rfilter = NULL;
|
2001-02-01 20:21:25 +00:00
|
|
|
dfilter_t *rfcode = NULL;
|
2000-01-14 06:46:00 +00:00
|
|
|
e_prefs *prefs;
|
2001-05-31 08:36:46 +00:00
|
|
|
char badopt;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
Add support for a global "ethereal.conf" preferences file, stored in the
same directory as the "manuf" file ("/etc" or "/usr/local/etc", most
likely).
Add a mechanism to allow modules (e.g., dissectors) to register
preference values, which:
can be put into the global or the user's preference file;
can be set from the command line, with arguments to the "-o"
flag;
can be set from tabs in the "Preferences" dialog box.
Use that mechanism to register the "Decode IPv4 TOS field as DiffServ
field" variable for IP as a preference.
Stuff that still needs to be done:
documenting the API for registering preferences;
documenting the "-o" values in the man page (probably needs a
flag similar to "-G", and a Perl script to turn the output into
documentation as is done with the list of field);
handling error checking for numeric values (range checking,
making sure that if the user changes the variable from the GUI
they change it to a valid numeric value);
using the callbacks to, for example, update the display when
preferences are changed (could be expensive);
panic if the user specifies a numeric value with a base other
than 10, 8, or 16.
We may also want to clean up the existing wired-in preferences not to
take effect the instant you tweak the widget, and to add an "Apply"
button to the "Preferences" dialog.
svn path=/trunk/; revision=2117
2000-07-05 09:41:07 +00:00
|
|
|
/* Register all dissectors; we must do this before checking for the
|
|
|
|
"-G" flag, as the "-G" flag dumps a list of fields registered
|
|
|
|
by the dissectors, and we must do it before we read the preferences,
|
|
|
|
in case any dissectors register preferences. */
|
2001-04-02 00:38:36 +00:00
|
|
|
epan_init(PLUGIN_DIR,register_all_protocols,register_all_protocol_handoffs);
|
Add support for a global "ethereal.conf" preferences file, stored in the
same directory as the "manuf" file ("/etc" or "/usr/local/etc", most
likely).
Add a mechanism to allow modules (e.g., dissectors) to register
preference values, which:
can be put into the global or the user's preference file;
can be set from the command line, with arguments to the "-o"
flag;
can be set from tabs in the "Preferences" dialog box.
Use that mechanism to register the "Decode IPv4 TOS field as DiffServ
field" variable for IP as a preference.
Stuff that still needs to be done:
documenting the API for registering preferences;
documenting the "-o" values in the man page (probably needs a
flag similar to "-G", and a Perl script to turn the output into
documentation as is done with the list of field);
handling error checking for numeric values (range checking,
making sure that if the user changes the variable from the GUI
they change it to a valid numeric value);
using the callbacks to, for example, update the display when
preferences are changed (could be expensive);
panic if the user specifies a numeric value with a base other
than 10, 8, or 16.
We may also want to clean up the existing wired-in preferences not to
take effect the instant you tweak the widget, and to add an "Apply"
button to the "Preferences" dialog.
svn path=/trunk/; revision=2117
2000-07-05 09:41:07 +00:00
|
|
|
|
|
|
|
/* Now register the preferences for any non-dissector modules.
|
|
|
|
We must do that before we read the preferences as well. */
|
|
|
|
prefs_register_modules();
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
/* If invoked with the "-G" flag, we dump out a glossary of
|
|
|
|
display filter symbols.
|
|
|
|
|
|
|
|
We do this here to mirror what happens in the GTK+ version, although
|
|
|
|
it's not necessary here. */
|
|
|
|
if (argc >= 2 && strcmp(argv[1], "-G") == 0) {
|
|
|
|
proto_registrar_dump();
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
2000-07-05 02:06:58 +00:00
|
|
|
/* Set the C-language locale to the native environment. */
|
|
|
|
setlocale(LC_ALL, "");
|
|
|
|
|
Add support for a global "ethereal.conf" preferences file, stored in the
same directory as the "manuf" file ("/etc" or "/usr/local/etc", most
likely).
Add a mechanism to allow modules (e.g., dissectors) to register
preference values, which:
can be put into the global or the user's preference file;
can be set from the command line, with arguments to the "-o"
flag;
can be set from tabs in the "Preferences" dialog box.
Use that mechanism to register the "Decode IPv4 TOS field as DiffServ
field" variable for IP as a preference.
Stuff that still needs to be done:
documenting the API for registering preferences;
documenting the "-o" values in the man page (probably needs a
flag similar to "-G", and a Perl script to turn the output into
documentation as is done with the list of field);
handling error checking for numeric values (range checking,
making sure that if the user changes the variable from the GUI
they change it to a valid numeric value);
using the callbacks to, for example, update the display when
preferences are changed (could be expensive);
panic if the user specifies a numeric value with a base other
than 10, 8, or 16.
We may also want to clean up the existing wired-in preferences not to
take effect the instant you tweak the widget, and to add an "Apply"
button to the "Preferences" dialog.
svn path=/trunk/; revision=2117
2000-07-05 09:41:07 +00:00
|
|
|
prefs = read_prefs(&gpf_open_errno, &gpf_path, &pf_open_errno, &pf_path);
|
|
|
|
if (gpf_path != NULL) {
|
|
|
|
fprintf(stderr, "Can't open global preferences file \"%s\": %s.\n", pf_path,
|
|
|
|
strerror(gpf_open_errno));
|
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
if (pf_path != NULL) {
|
Add support for a global "ethereal.conf" preferences file, stored in the
same directory as the "manuf" file ("/etc" or "/usr/local/etc", most
likely).
Add a mechanism to allow modules (e.g., dissectors) to register
preference values, which:
can be put into the global or the user's preference file;
can be set from the command line, with arguments to the "-o"
flag;
can be set from tabs in the "Preferences" dialog box.
Use that mechanism to register the "Decode IPv4 TOS field as DiffServ
field" variable for IP as a preference.
Stuff that still needs to be done:
documenting the API for registering preferences;
documenting the "-o" values in the man page (probably needs a
flag similar to "-G", and a Perl script to turn the output into
documentation as is done with the list of field);
handling error checking for numeric values (range checking,
making sure that if the user changes the variable from the GUI
they change it to a valid numeric value);
using the callbacks to, for example, update the display when
preferences are changed (could be expensive);
panic if the user specifies a numeric value with a base other
than 10, 8, or 16.
We may also want to clean up the existing wired-in preferences not to
take effect the instant you tweak the widget, and to add an "Apply"
button to the "Preferences" dialog.
svn path=/trunk/; revision=2117
2000-07-05 09:41:07 +00:00
|
|
|
fprintf(stderr, "Can't open your preferences file \"%s\": %s.\n", pf_path,
|
|
|
|
strerror(pf_open_errno));
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
2001-04-03 05:26:27 +00:00
|
|
|
|
2002-01-13 20:35:12 +00:00
|
|
|
/* Set the name resolution code's flags from the preferences. */
|
|
|
|
g_resolv_flags = prefs->name_resolve;
|
|
|
|
|
2001-04-03 05:55:44 +00:00
|
|
|
#ifdef WIN32
|
2001-04-03 05:26:27 +00:00
|
|
|
/* Load Wpcap, if possible */
|
|
|
|
load_wpcap();
|
2001-04-03 05:55:44 +00:00
|
|
|
#endif
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
/* Initialize the capture file struct */
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.plist = NULL;
|
2000-11-19 08:54:37 +00:00
|
|
|
cfile.plist_end = NULL;
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.wth = NULL;
|
2000-11-19 08:54:37 +00:00
|
|
|
cfile.filename = NULL;
|
|
|
|
cfile.user_saved = FALSE;
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.is_tempfile = FALSE;
|
|
|
|
cfile.rfcode = NULL;
|
|
|
|
cfile.dfilter = NULL;
|
|
|
|
cfile.dfcode = NULL;
|
2000-01-14 06:46:00 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.cfilter = g_strdup("");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.iface = NULL;
|
2000-11-19 08:54:37 +00:00
|
|
|
cfile.save_file = NULL;
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.save_file_fd = -1;
|
|
|
|
cfile.snap = WTAP_MAX_PACKET_SIZE;
|
|
|
|
cfile.count = 0;
|
2001-12-04 07:32:05 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
cfile.autostop_duration = 0;
|
|
|
|
cfile.autostop_filesize = 0;
|
2001-12-04 08:26:00 +00:00
|
|
|
cfile.ringbuffer_on = FALSE;
|
|
|
|
cfile.ringbuffer_num_files = RINGBUFFER_MIN_NUM_FILES;
|
2001-12-04 07:32:05 +00:00
|
|
|
#endif
|
2000-12-03 22:12:21 +00:00
|
|
|
col_init(&cfile.cinfo, prefs->num_cols);
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
/* Assemble the compile-time options */
|
2001-03-27 06:48:12 +00:00
|
|
|
comp_info_str = g_string_new("");
|
|
|
|
|
|
|
|
g_string_append(comp_info_str, "with ");
|
|
|
|
g_string_sprintfa(comp_info_str,
|
|
|
|
#ifdef GLIB_MAJOR_VERSION
|
|
|
|
"GLib %d.%d.%d", GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION,
|
|
|
|
GLIB_MICRO_VERSION);
|
2000-01-14 06:46:00 +00:00
|
|
|
#else
|
2001-03-27 06:48:12 +00:00
|
|
|
"GLib (version unknown)");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ", with libpcap ");
|
2001-07-27 07:10:13 +00:00
|
|
|
#ifdef HAVE_PCAP_VERSION
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, pcap_version);
|
2001-07-27 07:10:13 +00:00
|
|
|
#else /* HAVE_PCAP_VERSION */
|
|
|
|
g_string_append(comp_info_str, "(version unknown)");
|
|
|
|
#endif /* HAVE_PCAP_VERSION */
|
|
|
|
#else /* HAVE_LIBPCAP */
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ", without libpcap");
|
2001-07-27 07:10:13 +00:00
|
|
|
#endif /* HAVE_LIBPCAP */
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
#ifdef HAVE_LIBZ
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ", with libz ");
|
2000-01-14 06:46:00 +00:00
|
|
|
#ifdef ZLIB_VERSION
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ZLIB_VERSION);
|
2000-01-14 06:46:00 +00:00
|
|
|
#else /* ZLIB_VERSION */
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, "(version unknown)");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif /* ZLIB_VERSION */
|
|
|
|
#else /* HAVE_LIBZ */
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ", without libz");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif /* HAVE_LIBZ */
|
|
|
|
|
|
|
|
/* Oh, this is pretty */
|
|
|
|
#if defined(HAVE_UCD_SNMP_SNMP_H)
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ", with UCD SNMP ");
|
2000-01-14 06:46:00 +00:00
|
|
|
#ifdef HAVE_UCD_SNMP_VERSION_H
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, VersionInfo);
|
2000-01-14 06:46:00 +00:00
|
|
|
#else /* HAVE_UCD_SNMP_VERSION_H */
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, "(version unknown)");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif /* HAVE_UCD_SNMP_VERSION_H */
|
|
|
|
#elif defined(HAVE_SNMP_SNMP_H)
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ", with CMU SNMP ");
|
2000-01-14 06:46:00 +00:00
|
|
|
#ifdef HAVE_SNMP_VERSION_H
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, snmp_Version());
|
2000-01-14 06:46:00 +00:00
|
|
|
#else /* HAVE_SNMP_VERSION_H */
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, "(version unknown)");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif /* HAVE_SNMP_VERSION_H */
|
|
|
|
#else /* no SNMP */
|
2001-03-27 06:48:12 +00:00
|
|
|
g_string_append(comp_info_str, ", without SNMP");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Now get our args */
|
2001-12-04 08:26:00 +00:00
|
|
|
while ((opt = getopt(argc, argv, "a:b:c:Df:F:hi:lnN:o:pr:R:s:t:vw:Vx")) != EOF) {
|
2000-01-14 06:46:00 +00:00
|
|
|
switch (opt) {
|
2001-12-04 07:32:05 +00:00
|
|
|
case 'a': /* autostop criteria */
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
if (set_autostop_criterion(optarg) == FALSE) {
|
|
|
|
fprintf(stderr, "ethereal: Invalid or unknown -a flag \"%s\"\n", optarg);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
2001-12-04 08:26:00 +00:00
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
case 'b': /* Ringbuffer option */
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
cfile.ringbuffer_on = TRUE;
|
2001-12-21 20:18:40 +00:00
|
|
|
cfile.ringbuffer_num_files = get_positive_int(optarg, "number of ring buffer files");
|
2001-12-04 08:26:00 +00:00
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
2001-12-04 07:32:05 +00:00
|
|
|
#endif
|
|
|
|
break;
|
2000-01-14 06:46:00 +00:00
|
|
|
case 'c': /* Capture xxx packets */
|
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-04-18 05:45:58 +00:00
|
|
|
packet_count = get_positive_int(optarg, "packet count");
|
2000-01-14 06:46:00 +00:00
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
|
|
|
#endif
|
|
|
|
break;
|
2001-03-27 06:16:11 +00:00
|
|
|
case 'D': /* Print a list of capture devices */
|
2001-03-27 06:48:12 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-03-27 06:16:11 +00:00
|
|
|
if_list = get_interface_list(&err, err_str);
|
|
|
|
if (if_list == NULL) {
|
|
|
|
switch (err) {
|
|
|
|
|
|
|
|
case CANT_GET_INTERFACE_LIST:
|
|
|
|
fprintf(stderr, "tethereal: Can't get list of interfaces: %s\n",
|
|
|
|
err_str);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case NO_INTERFACES_FOUND:
|
|
|
|
fprintf(stderr, "tethereal: There are no interfaces on which a capture can be done\n");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
for (if_entry = g_list_first(if_list); if_entry != NULL;
|
|
|
|
if_entry = g_list_next(if_entry))
|
|
|
|
printf("%s\n", (char *)if_entry->data);
|
|
|
|
free_interface_list(if_list);
|
|
|
|
exit(0);
|
2001-03-27 06:48:12 +00:00
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
|
|
|
#endif
|
2001-03-27 06:16:11 +00:00
|
|
|
break;
|
2000-01-14 06:46:00 +00:00
|
|
|
case 'f':
|
|
|
|
#ifdef HAVE_LIBPCAP
|
2000-02-22 07:07:55 +00:00
|
|
|
capture_filter_specified = TRUE;
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.cfilter = g_strdup(optarg);
|
2000-01-14 06:46:00 +00:00
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
|
|
|
#endif
|
|
|
|
break;
|
2000-01-17 08:06:42 +00:00
|
|
|
case 'F':
|
|
|
|
out_file_type = wtap_short_string_to_file_type(optarg);
|
|
|
|
if (out_file_type < 0) {
|
|
|
|
fprintf(stderr, "tethereal: \"%s\" is not a valid capture file type\n",
|
|
|
|
optarg);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
break;
|
2000-01-14 06:46:00 +00:00
|
|
|
case 'h': /* Print help and exit */
|
|
|
|
print_usage();
|
|
|
|
exit(0);
|
|
|
|
break;
|
|
|
|
case 'i': /* Use interface xxx */
|
|
|
|
#ifdef HAVE_LIBPCAP
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.iface = g_strdup(optarg);
|
2000-01-14 06:46:00 +00:00
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
|
|
|
#endif
|
|
|
|
break;
|
2001-02-18 03:38:44 +00:00
|
|
|
case 'l': /* "Line-buffer" standard output */
|
|
|
|
/* This isn't line-buffering, strictly speaking, it's just
|
|
|
|
flushing the standard output after the information for
|
|
|
|
each packet is printed; however, that should be good
|
|
|
|
enough for all the purposes to which "-l" is put.
|
|
|
|
|
|
|
|
See the comment in "wtap_dispatch_cb_print()" for an
|
|
|
|
explanation of why we do that, and why we don't just
|
|
|
|
use "setvbuf()" to make the standard output line-buffered
|
|
|
|
(short version: in Windows, "line-buffered" is the same
|
|
|
|
as "fully-buffered", and the output buffer is only flushed
|
|
|
|
when it fills up). */
|
|
|
|
line_buffered = TRUE;
|
2000-09-20 08:28:54 +00:00
|
|
|
break;
|
2000-01-14 06:46:00 +00:00
|
|
|
case 'n': /* No name resolution */
|
2002-01-13 20:35:12 +00:00
|
|
|
g_resolv_flags = RESOLV_NONE;
|
2001-05-31 08:36:46 +00:00
|
|
|
break;
|
|
|
|
case 'N': /* Select what types of addresses/port #s to resolve */
|
2002-01-13 20:35:12 +00:00
|
|
|
if (g_resolv_flags == RESOLV_ALL)
|
|
|
|
g_resolv_flags = RESOLV_NONE;
|
|
|
|
badopt = string_to_name_resolve(optarg, &g_resolv_flags);
|
2001-05-31 08:36:46 +00:00
|
|
|
if (badopt != '\0') {
|
|
|
|
fprintf(stderr, "tethereal: -N specifies unknown resolving option '%c'; valid options are 'm', 'n', and 't'\n",
|
|
|
|
badopt);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
break;
|
Add support for a global "ethereal.conf" preferences file, stored in the
same directory as the "manuf" file ("/etc" or "/usr/local/etc", most
likely).
Add a mechanism to allow modules (e.g., dissectors) to register
preference values, which:
can be put into the global or the user's preference file;
can be set from the command line, with arguments to the "-o"
flag;
can be set from tabs in the "Preferences" dialog box.
Use that mechanism to register the "Decode IPv4 TOS field as DiffServ
field" variable for IP as a preference.
Stuff that still needs to be done:
documenting the API for registering preferences;
documenting the "-o" values in the man page (probably needs a
flag similar to "-G", and a Perl script to turn the output into
documentation as is done with the list of field);
handling error checking for numeric values (range checking,
making sure that if the user changes the variable from the GUI
they change it to a valid numeric value);
using the callbacks to, for example, update the display when
preferences are changed (could be expensive);
panic if the user specifies a numeric value with a base other
than 10, 8, or 16.
We may also want to clean up the existing wired-in preferences not to
take effect the instant you tweak the widget, and to add an "Apply"
button to the "Preferences" dialog.
svn path=/trunk/; revision=2117
2000-07-05 09:41:07 +00:00
|
|
|
case 'o': /* Override preference from command line */
|
|
|
|
switch (prefs_set_pref(optarg)) {
|
|
|
|
|
|
|
|
case PREFS_SET_SYNTAX_ERR:
|
|
|
|
fprintf(stderr, "tethereal: Invalid -o flag \"%s\"\n", optarg);
|
|
|
|
exit(1);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case PREFS_SET_NO_SUCH_PREF:
|
Allow a dissector to register preferences that it no longer supports as
obsolete; we silently ignore attempts to set those in a preferences
file, so that we don't spam the user with error messages caused by them
having saved preferences in an earlier release that contained those
preferences.
Make the Diameter and iSCSI dissectors register obsolete preferences.
Crash if some code tries to register a preferences module with a name
that contains something other than lower-case ASCII letters, numbers, or
underscores, or that has already been registered, or if some code tries
to register a preference with a name that contains something other than
lower-case ASCII letters, numbers, underscores, or periods, or that has
already been registered, so that we don't put code like that in a
release and have to shovel code into "prefs.c" to fix it up later. (The
problem with multiple modules or preferences with the same name should
be obvious; the problem with names with blanks, or upper-case letters,
or punctuation, is that they're a pain to type on the command line.)
svn path=/trunk/; revision=4148
2001-11-04 02:50:21 +00:00
|
|
|
case PREFS_SET_OBSOLETE:
|
Add support for a global "ethereal.conf" preferences file, stored in the
same directory as the "manuf" file ("/etc" or "/usr/local/etc", most
likely).
Add a mechanism to allow modules (e.g., dissectors) to register
preference values, which:
can be put into the global or the user's preference file;
can be set from the command line, with arguments to the "-o"
flag;
can be set from tabs in the "Preferences" dialog box.
Use that mechanism to register the "Decode IPv4 TOS field as DiffServ
field" variable for IP as a preference.
Stuff that still needs to be done:
documenting the API for registering preferences;
documenting the "-o" values in the man page (probably needs a
flag similar to "-G", and a Perl script to turn the output into
documentation as is done with the list of field);
handling error checking for numeric values (range checking,
making sure that if the user changes the variable from the GUI
they change it to a valid numeric value);
using the callbacks to, for example, update the display when
preferences are changed (could be expensive);
panic if the user specifies a numeric value with a base other
than 10, 8, or 16.
We may also want to clean up the existing wired-in preferences not to
take effect the instant you tweak the widget, and to add an "Apply"
button to the "Preferences" dialog.
svn path=/trunk/; revision=2117
2000-07-05 09:41:07 +00:00
|
|
|
fprintf(stderr, "tethereal: -o flag \"%s\" specifies unknown preference\n",
|
|
|
|
optarg);
|
|
|
|
exit(1);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
2000-09-15 05:32:49 +00:00
|
|
|
case 'p': /* Don't capture in promiscuous mode */
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
promisc_mode = 0;
|
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
|
|
|
#endif
|
|
|
|
break;
|
2000-01-14 06:46:00 +00:00
|
|
|
case 'r': /* Read capture file xxx */
|
|
|
|
cf_name = g_strdup(optarg);
|
|
|
|
break;
|
|
|
|
case 'R': /* Read file filter */
|
|
|
|
rfilter = optarg;
|
|
|
|
break;
|
|
|
|
case 's': /* Set the snapshot (capture) length */
|
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-04-18 05:45:58 +00:00
|
|
|
cfile.snap = get_positive_int(optarg, "snapshot length");
|
2000-01-14 06:46:00 +00:00
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
arg_error = TRUE;
|
|
|
|
#endif
|
|
|
|
break;
|
|
|
|
case 't': /* Time stamp type */
|
|
|
|
if (strcmp(optarg, "r") == 0)
|
|
|
|
timestamp_type = RELATIVE;
|
|
|
|
else if (strcmp(optarg, "a") == 0)
|
|
|
|
timestamp_type = ABSOLUTE;
|
2000-11-01 08:31:36 +00:00
|
|
|
else if (strcmp(optarg, "ad") == 0)
|
|
|
|
timestamp_type = ABSOLUTE_WITH_DATE;
|
2000-01-14 06:46:00 +00:00
|
|
|
else if (strcmp(optarg, "d") == 0)
|
|
|
|
timestamp_type = DELTA;
|
|
|
|
else {
|
|
|
|
fprintf(stderr, "tethereal: Invalid time stamp type \"%s\"\n",
|
|
|
|
optarg);
|
|
|
|
fprintf(stderr, "It must be \"r\" for relative, \"a\" for absolute,\n");
|
2000-11-01 08:31:36 +00:00
|
|
|
fprintf(stderr, "\"ad\" for absolute with date, or \"d\" for delta.\n");
|
2000-01-14 06:46:00 +00:00
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 'v': /* Show version and exit */
|
2001-03-27 06:48:12 +00:00
|
|
|
printf("t%s %s, %s\n", PACKAGE, VERSION, comp_info_str->str);
|
2000-01-14 06:46:00 +00:00
|
|
|
exit(0);
|
|
|
|
break;
|
|
|
|
case 'w': /* Write to capture file xxx */
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.save_file = g_strdup(optarg);
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
case 'V': /* Verbose */
|
|
|
|
verbose = TRUE;
|
|
|
|
break;
|
2000-01-17 07:49:03 +00:00
|
|
|
case 'x': /* Print packet data in hex (and ASCII) */
|
|
|
|
print_hex = TRUE;
|
|
|
|
break;
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2000-02-22 07:07:55 +00:00
|
|
|
/* If no capture filter or read filter has been specified, and there are
|
|
|
|
still command-line arguments, treat them as the tokens of a capture
|
|
|
|
filter (if no "-r" flag was specified) or a read filter (if a "-r"
|
|
|
|
flag was specified. */
|
|
|
|
if (optind < argc) {
|
|
|
|
if (cf_name != NULL) {
|
|
|
|
if (rfilter != NULL) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: Read filters were specified both with \"-R\" and with additional command-line arguments\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
rfilter = get_args_as_string(argc, argv, optind);
|
|
|
|
} else {
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
if (capture_filter_specified) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: Capture filters were specified both with \"-f\" and with additional command-line arguments\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.cfilter = get_args_as_string(argc, argv, optind);
|
2000-02-22 07:07:55 +00:00
|
|
|
#else
|
|
|
|
capture_option_specified = TRUE;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2002-01-10 09:51:23 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-12-21 19:58:30 +00:00
|
|
|
/* If they didn't specify a "-w" flag, but specified a maximum capture
|
|
|
|
file size, tell them that this doesn't work, and exit. */
|
|
|
|
if (cfile.autostop_filesize != 0 && cfile.save_file == NULL) {
|
|
|
|
fprintf(stderr, "tethereal: Maximum capture file size specified, but capture isn't being saved to a file.\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
|
2001-12-21 20:06:43 +00:00
|
|
|
if (cfile.ringbuffer_on) {
|
2001-12-21 20:32:53 +00:00
|
|
|
/* Ring buffer works only under certain conditions:
|
|
|
|
a) ring buffer does not work if you're not saving the capture to
|
|
|
|
a file;
|
2002-01-29 05:38:56 +00:00
|
|
|
b) ring buffer only works if you're saving in libpcap format;
|
|
|
|
c) it makes no sense to enable the ring buffer if the maximum
|
2001-12-21 20:32:53 +00:00
|
|
|
file size is set to "infinite". */
|
2001-12-21 20:06:43 +00:00
|
|
|
if (cfile.save_file == NULL) {
|
|
|
|
fprintf(stderr, "tethereal: Ring buffer requested, but capture isn't being saved to a file.\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
2002-01-29 05:38:56 +00:00
|
|
|
if (out_file_type != WTAP_FILE_PCAP) {
|
|
|
|
fprintf(stderr, "tethereal: Ring buffer requested, but capture isn't being saved in libpcap format.\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
2001-12-21 20:06:43 +00:00
|
|
|
if (cfile.autostop_filesize == 0) {
|
|
|
|
fprintf(stderr, "tethereal: Ring buffer requested, but no maximum capture file size was specified.\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
}
|
2002-01-10 09:51:23 +00:00
|
|
|
#endif
|
2001-12-21 20:06:43 +00:00
|
|
|
|
2000-11-20 17:08:20 +00:00
|
|
|
#ifdef WIN32
|
|
|
|
/* Start windows sockets */
|
|
|
|
WSAStartup( MAKEWORD( 1, 1 ), &wsaData );
|
|
|
|
#endif
|
|
|
|
|
2000-07-09 03:29:42 +00:00
|
|
|
/* Notify all registered modules that have had any of their preferences
|
|
|
|
changed either from one of the preferences file or from the command
|
|
|
|
line that its preferences have changed. */
|
|
|
|
prefs_apply_all();
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
#ifndef HAVE_LIBPCAP
|
|
|
|
if (capture_option_specified)
|
2000-02-11 06:53:31 +00:00
|
|
|
fprintf(stderr, "This version of Tethereal was not built with support for capturing packets.\n");
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif
|
|
|
|
if (arg_error)
|
|
|
|
print_usage();
|
|
|
|
|
|
|
|
/* Build the column format array */
|
2000-06-27 04:36:03 +00:00
|
|
|
for (i = 0; i < cfile.cinfo.num_cols; i++) {
|
|
|
|
cfile.cinfo.col_fmt[i] = get_column_format(i);
|
|
|
|
cfile.cinfo.col_title[i] = g_strdup(get_column_title(i));
|
|
|
|
cfile.cinfo.fmt_matx[i] = (gboolean *) g_malloc0(sizeof(gboolean) *
|
2000-01-14 06:46:00 +00:00
|
|
|
NUM_COL_FMTS);
|
2000-06-27 04:36:03 +00:00
|
|
|
get_column_format_matches(cfile.cinfo.fmt_matx[i], cfile.cinfo.col_fmt[i]);
|
2000-11-19 08:54:37 +00:00
|
|
|
cfile.cinfo.col_data[i] = NULL;
|
2000-06-27 04:36:03 +00:00
|
|
|
if (cfile.cinfo.col_fmt[i] == COL_INFO)
|
2000-11-19 08:54:37 +00:00
|
|
|
cfile.cinfo.col_buf[i] = (gchar *) g_malloc(sizeof(gchar) * COL_MAX_INFO_LEN);
|
2000-01-14 06:46:00 +00:00
|
|
|
else
|
2000-11-19 08:54:37 +00:00
|
|
|
cfile.cinfo.col_buf[i] = (gchar *) g_malloc(sizeof(gchar) * COL_MAX_LEN);
|
2002-01-15 23:11:02 +00:00
|
|
|
|
|
|
|
cfile.cinfo.col_expr[i] = (gchar *) g_malloc(sizeof(gchar) * COL_MAX_LEN);
|
|
|
|
cfile.cinfo.col_expr_val[i] = (gchar *) g_malloc(sizeof(gchar) * COL_MAX_LEN);
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
|
2002-01-10 09:51:23 +00:00
|
|
|
#ifdef HAVE_LIBPCAP
|
2000-06-27 04:36:03 +00:00
|
|
|
if (cfile.snap < 1)
|
|
|
|
cfile.snap = WTAP_MAX_PACKET_SIZE;
|
|
|
|
else if (cfile.snap < MIN_PACKET_SIZE)
|
|
|
|
cfile.snap = MIN_PACKET_SIZE;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2001-12-04 08:26:00 +00:00
|
|
|
/* Check the value range of the ringbuffer_num_files parameter */
|
|
|
|
if (cfile.ringbuffer_num_files < RINGBUFFER_MIN_NUM_FILES)
|
|
|
|
cfile.ringbuffer_num_files = RINGBUFFER_MIN_NUM_FILES;
|
|
|
|
else if (cfile.ringbuffer_num_files > RINGBUFFER_MAX_NUM_FILES)
|
|
|
|
cfile.ringbuffer_num_files = RINGBUFFER_MAX_NUM_FILES;
|
2002-01-10 09:51:23 +00:00
|
|
|
#endif
|
2001-12-04 08:26:00 +00:00
|
|
|
|
2000-01-22 07:19:34 +00:00
|
|
|
if (rfilter != NULL) {
|
2001-02-01 20:21:25 +00:00
|
|
|
if (!dfilter_compile(rfilter, &rfcode)) {
|
2000-01-22 07:19:34 +00:00
|
|
|
fprintf(stderr, "tethereal: %s\n", dfilter_error_msg);
|
2000-09-27 04:55:05 +00:00
|
|
|
epan_cleanup();
|
2000-01-22 07:19:34 +00:00
|
|
|
exit(2);
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
2000-01-22 07:19:34 +00:00
|
|
|
}
|
2000-06-27 04:36:03 +00:00
|
|
|
cfile.rfcode = rfcode;
|
2000-01-22 07:19:34 +00:00
|
|
|
if (cf_name) {
|
2000-06-27 04:36:03 +00:00
|
|
|
err = open_cap_file(cf_name, FALSE, &cfile);
|
2000-01-14 06:46:00 +00:00
|
|
|
if (err != 0) {
|
2000-09-27 04:55:05 +00:00
|
|
|
epan_cleanup();
|
2000-01-14 06:46:00 +00:00
|
|
|
exit(2);
|
|
|
|
}
|
2000-06-27 04:36:03 +00:00
|
|
|
err = load_cap_file(&cfile, out_file_type);
|
2000-01-14 06:46:00 +00:00
|
|
|
if (err != 0) {
|
2000-09-27 04:55:05 +00:00
|
|
|
epan_cleanup();
|
2000-01-14 06:46:00 +00:00
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
cf_name[0] = '\0';
|
|
|
|
} else {
|
2000-01-15 06:05:21 +00:00
|
|
|
/* No capture file specified, so we're supposed to do a live capture;
|
|
|
|
do we have support for live captures? */
|
|
|
|
#ifdef HAVE_LIBPCAP
|
2001-04-03 05:26:27 +00:00
|
|
|
|
|
|
|
#ifdef _WIN32
|
|
|
|
if (!has_wpcap) {
|
|
|
|
fprintf(stderr, "tethereal: Could not load wpcap.dll.\n");
|
|
|
|
exit(2);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
2000-01-15 06:05:21 +00:00
|
|
|
/* Yes; did the user specify an interface to use? */
|
2000-06-27 04:36:03 +00:00
|
|
|
if (cfile.iface == NULL) {
|
2002-01-10 07:43:39 +00:00
|
|
|
/* No - is a default specified in the preferences file? */
|
|
|
|
if (prefs->capture_device != NULL) {
|
|
|
|
/* Yes - use it. */
|
|
|
|
cfile.iface = g_strdup(prefs->capture_device);
|
|
|
|
} else {
|
|
|
|
/* No - pick the first one from the list of interfaces. */
|
|
|
|
if_list = get_interface_list(&err, err_str);
|
|
|
|
if (if_list == NULL) {
|
|
|
|
switch (err) {
|
|
|
|
|
|
|
|
case CANT_GET_INTERFACE_LIST:
|
|
|
|
fprintf(stderr, "tethereal: Can't get list of interfaces: %s\n",
|
|
|
|
err_str);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case NO_INTERFACES_FOUND:
|
|
|
|
fprintf(stderr, "tethereal: There are no interfaces on which a capture can be done\n");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
exit(2);
|
2000-01-16 02:48:12 +00:00
|
|
|
}
|
2002-01-10 07:43:39 +00:00
|
|
|
cfile.iface = g_strdup(if_list->data); /* first interface */
|
|
|
|
free_interface_list(if_list);
|
2000-01-15 06:05:21 +00:00
|
|
|
}
|
2000-01-14 14:21:50 +00:00
|
|
|
}
|
2000-01-17 08:06:42 +00:00
|
|
|
capture(packet_count, out_file_type);
|
2001-12-04 08:26:00 +00:00
|
|
|
|
|
|
|
if (cfile.ringbuffer_on) {
|
|
|
|
ringbuf_free();
|
|
|
|
}
|
2000-01-15 06:05:21 +00:00
|
|
|
#else
|
|
|
|
/* No - complain. */
|
|
|
|
fprintf(stderr, "This version of Tethereal was not built with support for capturing packets.\n");
|
|
|
|
exit(2);
|
2000-01-14 06:46:00 +00:00
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2000-09-27 04:55:05 +00:00
|
|
|
epan_cleanup();
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2001-04-20 21:50:06 +00:00
|
|
|
return 0;
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
/* Do the low-level work of a capture.
|
|
|
|
Returns TRUE if it succeeds, FALSE otherwise. */
|
|
|
|
static int
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
capture(volatile int packet_count, int out_file_type)
|
2000-01-14 06:46:00 +00:00
|
|
|
{
|
2001-10-25 06:41:48 +00:00
|
|
|
gchar open_err_str[PCAP_ERRBUF_SIZE];
|
|
|
|
gchar lookup_net_err_str[PCAP_ERRBUF_SIZE];
|
2000-01-14 06:46:00 +00:00
|
|
|
bpf_u_int32 netnum, netmask;
|
2001-01-28 23:56:29 +00:00
|
|
|
struct bpf_program fcode;
|
2000-01-14 06:46:00 +00:00
|
|
|
void (*oldhandler)(int);
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
int err;
|
|
|
|
volatile int inpkts = 0;
|
2000-01-14 06:46:00 +00:00
|
|
|
char errmsg[1024+1];
|
2001-12-04 07:32:05 +00:00
|
|
|
condition *cnd_stop_capturesize;
|
|
|
|
condition *cnd_stop_timeout;
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
#ifndef _WIN32
|
|
|
|
static const char ppamsg[] = "can't find PPA for ";
|
|
|
|
char *libpcap_warn;
|
|
|
|
#endif
|
2001-02-11 09:28:17 +00:00
|
|
|
struct pcap_stat stats;
|
2001-12-04 08:26:00 +00:00
|
|
|
gboolean dump_ok;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2000-01-26 05:30:02 +00:00
|
|
|
/* Initialize the table of conversations. */
|
2000-09-27 04:55:05 +00:00
|
|
|
epan_conversation_init();
|
2000-01-26 05:30:02 +00:00
|
|
|
|
|
|
|
/* Initialize protocol-specific variables */
|
|
|
|
init_all_protocols();
|
|
|
|
|
2001-06-08 06:27:16 +00:00
|
|
|
/* Initialize the common data structures for fragment reassembly.
|
|
|
|
Must be done *after* "init_all_protocols()", as "init_all_protocols()"
|
|
|
|
may free up space for fragments, which it finds by using the
|
|
|
|
data structures that "reassemble_init()" frees. */
|
|
|
|
reassemble_init();
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
ld.linktype = WTAP_ENCAP_UNKNOWN;
|
|
|
|
ld.pdh = NULL;
|
|
|
|
|
2001-10-25 06:41:48 +00:00
|
|
|
/* Open the network interface to capture from it.
|
|
|
|
Some versions of libpcap may put warnings into the error buffer
|
|
|
|
if they succeed; to tell if that's happened, we have to clear
|
|
|
|
the error buffer, and check if it's still a null string. */
|
|
|
|
open_err_str[0] = '\0';
|
|
|
|
ld.pch = pcap_open_live(cfile.iface, cfile.snap, promisc_mode, 1000,
|
|
|
|
open_err_str);
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
if (ld.pch == NULL) {
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
/* Well, we couldn't start the capture. */
|
|
|
|
#ifdef _WIN32
|
|
|
|
/* On Win32 OSes, the capture devices are probably available to all
|
|
|
|
users; don't warn about permissions problems.
|
|
|
|
|
|
|
|
Do, however, warn that Token Ring and PPP devices aren't supported. */
|
|
|
|
snprintf(errmsg, sizeof errmsg,
|
|
|
|
"The capture session could not be initiated (%s).\n"
|
|
|
|
"Please check that you have the proper interface specified.\n"
|
|
|
|
"\n"
|
2000-08-14 08:36:41 +00:00
|
|
|
"Note that the driver Tethereal uses for packet capture on Windows\n"
|
|
|
|
"doesn't support capturing on Token Ring interfaces, and doesn't\n"
|
|
|
|
"support capturing on PPP/WAN interfaces in Windows NT/2000.\n",
|
2001-10-25 06:41:48 +00:00
|
|
|
open_err_str);
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
#else
|
|
|
|
/* If we got a "can't find PPA for XXX" message, warn the user (who
|
|
|
|
is running Ethereal on HP-UX) that they don't have a version
|
2001-04-11 05:24:08 +00:00
|
|
|
of libpcap that properly handles HP-UX (libpcap 0.6.x and later
|
|
|
|
versions, which properly handle HP-UX, say "can't find /dev/dlpi
|
|
|
|
PPA for XXX" rather than "can't find PPA for XXX"). */
|
2001-10-25 06:41:48 +00:00
|
|
|
if (strncmp(open_err_str, ppamsg, sizeof ppamsg - 1) == 0)
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
libpcap_warn =
|
|
|
|
"\n\n"
|
2000-08-14 08:36:41 +00:00
|
|
|
"You are running Tethereal with a version of the libpcap library\n"
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
"that doesn't handle HP-UX network devices well; this means that\n"
|
2000-08-14 08:36:41 +00:00
|
|
|
"Tethereal may not be able to capture packets.\n"
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
"\n"
|
2001-04-11 05:24:08 +00:00
|
|
|
"To fix this, you should install libpcap 0.6.2, or a later version\n"
|
|
|
|
"of libpcap, rather than libpcap 0.4 or 0.5.x. It is available in\n"
|
|
|
|
"packaged binary form from the Software Porting And Archive Centre\n"
|
|
|
|
"for HP-UX; the Centre is at http://hpux.connect.org.uk/ - the page\n"
|
|
|
|
"at the URL lists a number of mirror sites.";
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
else
|
|
|
|
libpcap_warn = "";
|
2000-01-14 06:46:00 +00:00
|
|
|
snprintf(errmsg, sizeof errmsg,
|
|
|
|
"The capture session could not be initiated (%s).\n"
|
|
|
|
"Please check to make sure you have sufficient permissions, and that\n"
|
2001-10-25 06:41:48 +00:00
|
|
|
"you have the proper interface specified.%s", open_err_str, libpcap_warn);
|
On Win32, if the attempt to open the capture device fails, don't talk
about checking permissions, as the capture devices are probably
available to all users, and talking about permissions will only confuse
the user. Do, however, warn that Ethereal can't capture on Token Ring
or PPP/WAN interfaces.
On UNIX, if the attempt to open the capture device fails, and the error
message starts with "can't find PPA for ", they are probably running on
HP-UX with a version of libpcap not patched to properly look up PPAs for
network interfaces given the interface name; give them a detailed
warning about this, telling them that they'll have to fix libpcap and
build Ethereal from source, and pointing them at the "README.hpux" file.
svn path=/trunk/; revision=2265
2000-08-13 08:17:03 +00:00
|
|
|
#endif
|
2000-01-14 06:46:00 +00:00
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
|
2000-06-27 04:36:03 +00:00
|
|
|
if (cfile.cfilter) {
|
2000-01-14 06:46:00 +00:00
|
|
|
/* A capture filter was specified; set it up. */
|
2001-10-25 06:41:48 +00:00
|
|
|
if (pcap_lookupnet(cfile.iface, &netnum, &netmask, lookup_net_err_str) < 0) {
|
2000-11-01 07:38:54 +00:00
|
|
|
/*
|
|
|
|
* Well, we can't get the netmask for this interface; it's used
|
|
|
|
* only for filters that check for broadcast IP addresses, so
|
|
|
|
* we just warn the user, and punt and use 0.
|
|
|
|
*/
|
|
|
|
fprintf(stderr,
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
"Warning: Couldn't obtain netmask info (%s).\n", lookup_net_err_str);
|
2000-11-01 07:38:54 +00:00
|
|
|
netmask = 0;
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
2001-01-28 23:56:29 +00:00
|
|
|
if (pcap_compile(ld.pch, &fcode, cfile.cfilter, 1, netmask) < 0) {
|
2000-01-14 06:46:00 +00:00
|
|
|
snprintf(errmsg, sizeof errmsg, "Unable to parse filter string (%s).",
|
|
|
|
pcap_geterr(ld.pch));
|
|
|
|
goto error;
|
|
|
|
}
|
2001-01-28 23:56:29 +00:00
|
|
|
if (pcap_setfilter(ld.pch, &fcode) < 0) {
|
2000-01-14 06:46:00 +00:00
|
|
|
snprintf(errmsg, sizeof errmsg, "Can't install filter (%s).",
|
|
|
|
pcap_geterr(ld.pch));
|
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-11-09 07:44:51 +00:00
|
|
|
ld.linktype = wtap_pcap_encap_to_wtap_encap(get_pcap_linktype(ld.pch,
|
|
|
|
cfile.iface));
|
2000-06-27 04:36:03 +00:00
|
|
|
if (cfile.save_file != NULL) {
|
2000-01-14 06:46:00 +00:00
|
|
|
/* Set up to write to the capture file. */
|
|
|
|
if (ld.linktype == WTAP_ENCAP_UNKNOWN) {
|
|
|
|
strcpy(errmsg, "The network you're capturing from is of a type"
|
2000-02-11 06:53:31 +00:00
|
|
|
" that Tethereal doesn't support.");
|
2000-01-14 06:46:00 +00:00
|
|
|
goto error;
|
|
|
|
}
|
2001-12-04 08:26:00 +00:00
|
|
|
if (cfile.ringbuffer_on) {
|
|
|
|
cfile.save_file_fd = ringbuf_init(cfile.save_file,
|
|
|
|
cfile.ringbuffer_num_files);
|
|
|
|
if (cfile.save_file_fd != -1) {
|
|
|
|
ld.pdh = ringbuf_init_wtap_dump_fdopen(out_file_type, ld.linktype,
|
|
|
|
pcap_snapshot(ld.pch), &err);
|
|
|
|
} else {
|
|
|
|
ld.pdh = NULL;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
ld.pdh = wtap_dump_open(cfile.save_file, out_file_type,
|
|
|
|
ld.linktype, pcap_snapshot(ld.pch), &err);
|
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
if (ld.pdh == NULL) {
|
In Tethereal:
When capturing, report errors trying to create the output file
with "file_open_error_message()".
Make the "for_writing" argument to "file_open_error_message()" a
"gboolean", as it's either TRUE (if the file is being opened for
writing) or FALSE (if it's being opened for reading).
Report EISDIR as "XXX is a directory (folder), not a file.".
When checking whether an "open()" of a capture file succeeded, check
whether "open()" returns a negative number, not whether it returns 0.
In "wtap_open_offline()", if the file to be opened is a directory,
return EISDIR, not WTAP_ERR_NOT_REGULAR_FILE, so that the error message
can say "that's a directory, not a file".
If "wtap_open_offline()" returns WTAP_ERR_NOT_REGULAR_FILE, don't just
say the file is "invalid", say it's a "special file" or socket or some
other weird type of file.
svn path=/trunk/; revision=2144
2000-07-20 09:39:43 +00:00
|
|
|
snprintf(errmsg, sizeof errmsg, file_open_error_message(errno, TRUE),
|
|
|
|
cfile.save_file);
|
2000-01-14 06:46:00 +00:00
|
|
|
goto error;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-10-25 06:41:48 +00:00
|
|
|
/* Does "open_err_str" contain a non-empty string? If so, "pcap_open_live()"
|
|
|
|
returned a warning; print it, but keep capturing. */
|
|
|
|
if (open_err_str[0] != '\0')
|
|
|
|
fprintf(stderr, "tethereal: WARNING: %s.\n", open_err_str);
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
/* Catch SIGINT and SIGTERM and, if we get either of them, clean up
|
|
|
|
and exit.
|
|
|
|
XXX - deal with signal semantics on various platforms. Or just
|
|
|
|
use "sigaction()" and be done with it? */
|
|
|
|
signal(SIGTERM, capture_cleanup);
|
|
|
|
signal(SIGINT, capture_cleanup);
|
2000-03-28 20:20:11 +00:00
|
|
|
#if !defined(WIN32)
|
2000-01-14 06:46:00 +00:00
|
|
|
if ((oldhandler = signal(SIGHUP, capture_cleanup)) != SIG_DFL)
|
|
|
|
signal(SIGHUP, oldhandler);
|
2000-03-28 20:20:11 +00:00
|
|
|
#endif
|
2000-01-15 10:23:10 +00:00
|
|
|
|
|
|
|
/* Let the user know what interface was chosen. */
|
2001-02-11 21:29:03 +00:00
|
|
|
fprintf(stderr, "Capturing on %s\n", cfile.iface);
|
|
|
|
fflush(stderr);
|
2000-01-15 10:23:10 +00:00
|
|
|
|
2001-12-04 07:32:05 +00:00
|
|
|
/* initialize capture stop conditions */
|
|
|
|
init_capture_stop_conditions();
|
2001-12-21 19:58:30 +00:00
|
|
|
/* create stop conditions */
|
2001-12-04 07:32:05 +00:00
|
|
|
cnd_stop_capturesize = cnd_new((char*)CND_CLASS_CAPTURESIZE,
|
2001-12-04 08:26:00 +00:00
|
|
|
(long)cfile.autostop_filesize * 1000);
|
2001-12-04 07:32:05 +00:00
|
|
|
cnd_stop_timeout = cnd_new((char*)CND_CLASS_TIMEOUT,
|
|
|
|
(gint32)cfile.autostop_duration);
|
|
|
|
|
|
|
|
if (packet_count == 0)
|
|
|
|
packet_count = -1; /* infinite capturng */
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
if (!setjmp(ld.stopenv))
|
|
|
|
ld.go = TRUE;
|
|
|
|
else
|
|
|
|
ld.go = FALSE;
|
2001-12-04 07:32:05 +00:00
|
|
|
while (ld.go) {
|
|
|
|
if (packet_count > 0)
|
|
|
|
packet_count--;
|
|
|
|
inpkts = pcap_dispatch(ld.pch, 1, capture_pcap_cb, (u_char *) &ld);
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
if (packet_count == 0 || inpkts < 0) {
|
2001-12-04 07:32:05 +00:00
|
|
|
ld.go = FALSE;
|
|
|
|
} else if (cnd_eval(cnd_stop_timeout) == TRUE) {
|
2001-12-21 19:51:03 +00:00
|
|
|
/* The specified capture time has elapsed; stop the capture. */
|
2001-12-04 07:32:05 +00:00
|
|
|
ld.go = FALSE;
|
2001-12-21 19:51:03 +00:00
|
|
|
} else if (ld.pdh != NULL && (cnd_eval(cnd_stop_capturesize,
|
2001-12-04 07:32:05 +00:00
|
|
|
(guint32)wtap_get_bytes_dumped(ld.pdh))) == TRUE){
|
2001-12-21 19:51:03 +00:00
|
|
|
/* We're saving the capture to a file, and the capture file reached
|
|
|
|
its maximum size. */
|
2001-12-04 08:26:00 +00:00
|
|
|
if (cfile.ringbuffer_on) {
|
|
|
|
/* Switch to the next ringbuffer file */
|
|
|
|
if (ringbuf_switch_file(&cfile, &ld.pdh, &err) == TRUE) {
|
|
|
|
/* File switch failed: reset the condition */
|
|
|
|
cnd_reset(cnd_stop_capturesize);
|
|
|
|
} else {
|
|
|
|
/* File switch failed: stop here */
|
|
|
|
ld.go = FALSE;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
/* No ringbuffer - just stop. */
|
|
|
|
ld.go = FALSE;
|
|
|
|
}
|
2001-12-04 07:32:05 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* delete stop conditions */
|
|
|
|
cnd_delete(cnd_stop_capturesize);
|
|
|
|
cnd_delete(cnd_stop_timeout);
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2000-07-24 16:27:34 +00:00
|
|
|
if (cfile.save_file != NULL) {
|
2001-02-11 09:28:17 +00:00
|
|
|
/* We're saving to a file, which means we're printing packet counts
|
|
|
|
to the standard output. Send a newline so that we move to the
|
|
|
|
line after the packet count. */
|
2001-02-11 21:29:03 +00:00
|
|
|
fprintf(stderr, "\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* If we got an error while capturing, report it. */
|
|
|
|
if (inpkts < 0) {
|
|
|
|
fprintf(stderr, "tethereal: Error while capturing packets: %s\n",
|
|
|
|
pcap_geterr(ld.pch));
|
2000-07-24 16:27:34 +00:00
|
|
|
}
|
|
|
|
|
2001-02-11 09:28:17 +00:00
|
|
|
/* Get the capture statistics, and, if any packets were dropped, report
|
|
|
|
that. */
|
2001-02-11 21:29:03 +00:00
|
|
|
if (pcap_stats(ld.pch, &stats) >= 0) {
|
|
|
|
if (stats.ps_drop != 0) {
|
|
|
|
fprintf(stderr, "%u packets dropped\n", stats.ps_drop);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
fprintf(stderr, "tethereal: Can't get packet-drop statistics: %s\n",
|
|
|
|
pcap_geterr(ld.pch));
|
|
|
|
}
|
2001-12-04 07:32:05 +00:00
|
|
|
|
2001-02-11 09:28:17 +00:00
|
|
|
pcap_close(ld.pch);
|
|
|
|
|
2001-09-05 05:03:47 +00:00
|
|
|
if (cfile.save_file != NULL) {
|
2001-12-04 08:26:00 +00:00
|
|
|
/* We're saving to a file or files; close all files. */
|
|
|
|
if (cfile.ringbuffer_on) {
|
|
|
|
dump_ok = ringbuf_wtap_dump_close(&cfile, &err);
|
|
|
|
} else {
|
|
|
|
dump_ok = wtap_dump_close(ld.pdh, &err);
|
|
|
|
}
|
|
|
|
if (!dump_ok)
|
2001-09-05 05:03:47 +00:00
|
|
|
show_capture_file_io_error(cfile.save_file, err, TRUE);
|
|
|
|
}
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
return TRUE;
|
|
|
|
|
|
|
|
error:
|
2001-12-04 08:26:00 +00:00
|
|
|
if (cfile.ringbuffer_on) {
|
|
|
|
ringbuf_error_cleanup();
|
|
|
|
}
|
2000-06-27 04:36:03 +00:00
|
|
|
g_free(cfile.save_file);
|
|
|
|
cfile.save_file = NULL;
|
2000-01-14 06:46:00 +00:00
|
|
|
fprintf(stderr, "tethereal: %s\n", errmsg);
|
|
|
|
if (ld.pch != NULL)
|
|
|
|
pcap_close(ld.pch);
|
|
|
|
|
|
|
|
return FALSE;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
capture_pcap_cb(u_char *user, const struct pcap_pkthdr *phdr,
|
|
|
|
const u_char *pd)
|
|
|
|
{
|
|
|
|
struct wtap_pkthdr whdr;
|
|
|
|
loop_data *ld = (loop_data *) user;
|
2000-01-22 07:19:34 +00:00
|
|
|
cb_args_t args;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2000-02-16 01:38:56 +00:00
|
|
|
whdr.ts.tv_sec = phdr->ts.tv_sec;
|
|
|
|
whdr.ts.tv_usec = phdr->ts.tv_usec;
|
2000-01-14 06:46:00 +00:00
|
|
|
whdr.caplen = phdr->caplen;
|
|
|
|
whdr.len = phdr->len;
|
|
|
|
whdr.pkt_encap = ld->linktype;
|
|
|
|
|
2000-06-27 04:36:03 +00:00
|
|
|
args.cf = &cfile;
|
2000-01-22 07:19:34 +00:00
|
|
|
args.pdh = ld->pdh;
|
2000-01-14 06:46:00 +00:00
|
|
|
if (ld->pdh) {
|
2000-05-18 09:09:50 +00:00
|
|
|
wtap_dispatch_cb_write((u_char *)&args, &whdr, 0, NULL, pd);
|
2001-02-11 21:29:03 +00:00
|
|
|
fprintf(stderr, "\r%u ", cfile.count);
|
2000-01-14 06:46:00 +00:00
|
|
|
fflush(stdout);
|
|
|
|
} else {
|
2000-05-18 09:09:50 +00:00
|
|
|
wtap_dispatch_cb_print((u_char *)&args, &whdr, 0, NULL, pd);
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
capture_cleanup(int signum)
|
|
|
|
{
|
Make the "go" member of the "loop_data" structure in Ethereal a
"gboolean", as it's a Boolean value, and move it to the beginning of the
structure in Tethereal, as it is in Ethereal.
From Graeme Hewson:
Check for "pcap_dispatch()" returning -1, meaning an error
occurred; if it does, stop capturing, and report the error.
If we get a signal in tethereal, stop the capture with a
"longjmp()", rather than by clearning the "go" flag;
"pcap_dispatch()", on many platforms, keeps reading rather than
returning a captured packet count of 0 if the system call to
read packets returns -1 with an errno of EINTR, so the
"pcap_dispatch()" won't be broken out of if the signal handler
returns.
Fix a typo in an error message.
svn path=/trunk/; revision=4471
2002-01-03 22:03:24 +00:00
|
|
|
/* Longjmp back to the starting point; "pcap_dispatch()", on many
|
|
|
|
platforms, just keeps looping if it gets EINTR, so if we set
|
|
|
|
"ld.go" to FALSE and return, we won't break out of it and quit
|
|
|
|
capturing. */
|
|
|
|
longjmp(ld.stopenv, 1);
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
#endif /* HAVE_LIBPCAP */
|
|
|
|
|
|
|
|
static int
|
2000-01-22 07:19:34 +00:00
|
|
|
load_cap_file(capture_file *cf, int out_file_type)
|
2000-01-14 06:46:00 +00:00
|
|
|
{
|
2000-01-22 07:19:34 +00:00
|
|
|
gint linktype;
|
|
|
|
wtap_dumper *pdh;
|
|
|
|
int err;
|
|
|
|
int success;
|
|
|
|
cb_args_t args;
|
|
|
|
|
|
|
|
linktype = wtap_file_encap(cf->wth);
|
|
|
|
if (cf->save_file != NULL) {
|
|
|
|
/* Set up to write to the capture file. */
|
|
|
|
pdh = wtap_dump_open(cf->save_file, out_file_type,
|
|
|
|
linktype, wtap_snapshot_length(cf->wth), &err);
|
|
|
|
|
|
|
|
if (pdh == NULL) {
|
|
|
|
/* We couldn't set up to write to the capture file. */
|
|
|
|
switch (err) {
|
|
|
|
|
|
|
|
case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: Capture files can't be written in that format.\n");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_UNSUPPORTED_ENCAP:
|
|
|
|
case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: The capture file being read cannot be written in that format.\n");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_CANT_OPEN:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: The file \"%s\" couldn't be created for some unknown reason.\n",
|
|
|
|
cf->save_file);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_SHORT_WRITE:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: A full header couldn't be written to the file \"%s\".\n",
|
|
|
|
cf->save_file);
|
|
|
|
break;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2000-01-22 07:19:34 +00:00
|
|
|
default:
|
|
|
|
if (err < 0) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: The file \"%s\" could not be opened: Error %d.\n",
|
|
|
|
cf->save_file, err);
|
|
|
|
} else {
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: The file \"%s\" could not be opened: %s\n.",
|
|
|
|
cf->save_file, strerror(err));
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
args.cf = cf;
|
|
|
|
args.pdh = pdh;
|
|
|
|
success = wtap_loop(cf->wth, 0, wtap_dispatch_cb_write, (u_char *) &args,
|
|
|
|
&err);
|
2001-09-05 05:03:47 +00:00
|
|
|
|
|
|
|
/* Now close the capture file. */
|
|
|
|
if (!wtap_dump_close(pdh, &err))
|
|
|
|
show_capture_file_io_error(cfile.save_file, err, TRUE);
|
2000-01-22 07:19:34 +00:00
|
|
|
} else {
|
|
|
|
args.cf = cf;
|
|
|
|
args.pdh = NULL;
|
|
|
|
success = wtap_loop(cf->wth, 0, wtap_dispatch_cb_print, (u_char *) &args,
|
|
|
|
&err);
|
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
if (!success) {
|
|
|
|
/* Print up a message box noting that the read failed somewhere along
|
|
|
|
the line. */
|
|
|
|
switch (err) {
|
|
|
|
|
2000-02-19 08:00:08 +00:00
|
|
|
case WTAP_ERR_UNSUPPORTED_ENCAP:
|
|
|
|
fprintf(stderr,
|
2001-02-10 09:08:14 +00:00
|
|
|
"tethereal: \"%s\" is a capture file is for a network type that Tethereal doesn't support.\n",
|
|
|
|
cf->filename);
|
2000-02-19 08:00:08 +00:00
|
|
|
break;
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
case WTAP_ERR_CANT_READ:
|
2000-01-22 07:19:34 +00:00
|
|
|
fprintf(stderr,
|
2001-02-10 09:08:14 +00:00
|
|
|
"tethereal: An attempt to read from \"%s\" failed for some unknown reason.\n",
|
|
|
|
cf->filename);
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_SHORT_READ:
|
2000-01-22 07:19:34 +00:00
|
|
|
fprintf(stderr,
|
2001-02-10 09:08:14 +00:00
|
|
|
"tethereal: \"%s\" appears to have been cut short in the middle of a packet.\n",
|
|
|
|
cf->filename);
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_BAD_RECORD:
|
2000-01-22 07:19:34 +00:00
|
|
|
fprintf(stderr,
|
2001-02-10 09:08:14 +00:00
|
|
|
"tethereal: \"%s\" appears to be damaged or corrupt.\n",
|
|
|
|
cf->filename);
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2000-01-22 07:19:34 +00:00
|
|
|
fprintf(stderr,
|
2001-02-10 09:08:14 +00:00
|
|
|
"tethereal: An error occurred while reading \"%s\": %s.\n",
|
|
|
|
cf->filename, wtap_strerror(err));
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2000-01-22 07:19:34 +00:00
|
|
|
|
|
|
|
out:
|
2000-01-14 06:46:00 +00:00
|
|
|
wtap_close(cf->wth);
|
|
|
|
cf->wth = NULL;
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
2000-01-22 07:19:34 +00:00
|
|
|
fill_in_fdata(frame_data *fdata, capture_file *cf,
|
2000-05-18 09:09:50 +00:00
|
|
|
const struct wtap_pkthdr *phdr,
|
2001-10-04 08:30:36 +00:00
|
|
|
const union wtap_pseudo_header *pseudo_header, long offset)
|
2000-01-14 06:46:00 +00:00
|
|
|
{
|
2000-01-22 07:19:34 +00:00
|
|
|
int i;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
2000-01-22 07:19:34 +00:00
|
|
|
fdata->next = NULL;
|
|
|
|
fdata->prev = NULL;
|
2000-08-22 03:33:41 +00:00
|
|
|
fdata->pfd = NULL;
|
2001-03-24 09:24:41 +00:00
|
|
|
fdata->data_src = NULL;
|
2000-08-22 03:33:41 +00:00
|
|
|
fdata->num = cf->count;
|
|
|
|
fdata->pkt_len = phdr->len;
|
|
|
|
fdata->cap_len = phdr->caplen;
|
2000-01-22 07:19:34 +00:00
|
|
|
fdata->file_off = offset;
|
|
|
|
fdata->lnk_t = phdr->pkt_encap;
|
|
|
|
fdata->abs_secs = phdr->ts.tv_sec;
|
|
|
|
fdata->abs_usecs = phdr->ts.tv_usec;
|
2000-08-22 03:33:41 +00:00
|
|
|
fdata->flags.passed_dfilter = 0;
|
2000-04-13 20:39:38 +00:00
|
|
|
fdata->flags.encoding = CHAR_ASCII;
|
|
|
|
fdata->flags.visited = 0;
|
2000-08-22 03:33:41 +00:00
|
|
|
fdata->flags.marked = 0;
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
/* If we don't have the time stamp of the first packet in the
|
|
|
|
capture, it's because this is the first packet. Save the time
|
|
|
|
stamp of this packet as the time stamp of the first packet. */
|
|
|
|
if (!firstsec && !firstusec) {
|
2000-01-22 07:19:34 +00:00
|
|
|
firstsec = fdata->abs_secs;
|
|
|
|
firstusec = fdata->abs_usecs;
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* If we don't have the time stamp of the previous displayed packet,
|
|
|
|
it's because this is the first displayed packet. Save the time
|
|
|
|
stamp of this packet as the time stamp of the previous displayed
|
|
|
|
packet. */
|
|
|
|
if (!prevsec && !prevusec) {
|
2000-01-22 07:19:34 +00:00
|
|
|
prevsec = fdata->abs_secs;
|
|
|
|
prevusec = fdata->abs_usecs;
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Get the time elapsed between the first packet and this packet. */
|
2000-09-10 06:44:39 +00:00
|
|
|
compute_timestamp_diff(&fdata->rel_secs, &fdata->rel_usecs,
|
|
|
|
fdata->abs_secs, fdata->abs_usecs, firstsec, firstusec);
|
|
|
|
|
|
|
|
/* If it's greater than the current elapsed time, set the elapsed time
|
|
|
|
to it (we check for "greater than" so as not to be confused by
|
|
|
|
time moving backwards). */
|
2001-10-26 18:28:17 +00:00
|
|
|
if ((gint32)cf->esec < fdata->rel_secs
|
|
|
|
|| ((gint32)cf->esec == fdata->rel_secs && (gint32)cf->eusec < fdata->rel_usecs)) {
|
2000-09-10 06:44:39 +00:00
|
|
|
cf->esec = fdata->rel_secs;
|
|
|
|
cf->eusec = fdata->rel_usecs;
|
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
/* Get the time elapsed between the previous displayed packet and
|
|
|
|
this packet. */
|
2000-09-10 06:44:39 +00:00
|
|
|
compute_timestamp_diff(&fdata->del_secs, &fdata->del_usecs,
|
|
|
|
fdata->abs_secs, fdata->abs_usecs, prevsec, prevusec);
|
2000-01-22 07:19:34 +00:00
|
|
|
prevsec = fdata->abs_secs;
|
|
|
|
prevusec = fdata->abs_usecs;
|
|
|
|
}
|
|
|
|
|
2001-03-24 09:24:41 +00:00
|
|
|
/* Free up all data attached to a "frame_data" structure. */
|
|
|
|
static void
|
|
|
|
clear_fdata(frame_data *fdata)
|
|
|
|
{
|
|
|
|
if (fdata->pfd)
|
|
|
|
g_slist_free(fdata->pfd);
|
|
|
|
if (fdata->data_src)
|
|
|
|
g_slist_free(fdata->data_src);
|
|
|
|
}
|
|
|
|
|
2000-01-22 07:19:34 +00:00
|
|
|
static void
|
2001-10-04 08:30:36 +00:00
|
|
|
wtap_dispatch_cb_write(u_char *user, const struct wtap_pkthdr *phdr,
|
|
|
|
long offset, union wtap_pseudo_header *pseudo_header, const u_char *buf)
|
2000-01-22 07:19:34 +00:00
|
|
|
{
|
|
|
|
cb_args_t *args = (cb_args_t *) user;
|
|
|
|
capture_file *cf = args->cf;
|
|
|
|
wtap_dumper *pdh = args->pdh;
|
|
|
|
frame_data fdata;
|
|
|
|
int err;
|
|
|
|
gboolean passed;
|
2000-10-06 10:11:40 +00:00
|
|
|
epan_dissect_t *edt;
|
2000-01-22 07:19:34 +00:00
|
|
|
|
|
|
|
cf->count++;
|
|
|
|
if (cf->rfcode) {
|
2000-05-18 09:09:50 +00:00
|
|
|
fill_in_fdata(&fdata, cf, phdr, pseudo_header, offset);
|
2001-12-18 19:09:08 +00:00
|
|
|
edt = epan_dissect_new(TRUE, FALSE);
|
|
|
|
epan_dissect_prime_dfilter(edt, cf->rfcode);
|
|
|
|
epan_dissect_run(edt, pseudo_header, buf, &fdata, NULL);
|
2001-02-01 20:21:25 +00:00
|
|
|
passed = dfilter_apply_edt(cf->rfcode, edt);
|
2000-01-14 06:46:00 +00:00
|
|
|
} else {
|
2000-01-22 07:19:34 +00:00
|
|
|
passed = TRUE;
|
2000-10-06 10:11:40 +00:00
|
|
|
edt = NULL;
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
2000-01-22 07:19:34 +00:00
|
|
|
if (passed) {
|
2001-02-10 09:08:14 +00:00
|
|
|
if (!wtap_dump(pdh, phdr, pseudo_header, buf, &err)) {
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
if (ld.pch != NULL) {
|
|
|
|
/* We're capturing packets, so we're printing a count of packets
|
|
|
|
captured; move to the line after the count. */
|
2001-02-11 21:29:03 +00:00
|
|
|
fprintf(stderr, "\n");
|
2001-02-10 09:08:14 +00:00
|
|
|
}
|
|
|
|
#endif
|
|
|
|
show_capture_file_io_error(cf->save_file, err, FALSE);
|
|
|
|
#ifdef HAVE_LIBPCAP
|
|
|
|
if (ld.pch != NULL)
|
|
|
|
pcap_close(ld.pch);
|
|
|
|
#endif
|
|
|
|
wtap_dump_close(pdh, &err);
|
|
|
|
exit(2);
|
|
|
|
}
|
2000-01-22 07:19:34 +00:00
|
|
|
}
|
2000-10-06 10:11:40 +00:00
|
|
|
if (edt != NULL)
|
|
|
|
epan_dissect_free(edt);
|
2001-04-07 06:58:17 +00:00
|
|
|
if (cf->rfcode)
|
|
|
|
clear_fdata(&fdata);
|
2000-01-22 07:19:34 +00:00
|
|
|
}
|
|
|
|
|
2001-02-10 09:08:14 +00:00
|
|
|
static void
|
|
|
|
show_capture_file_io_error(const char *fname, int err, gboolean is_close)
|
|
|
|
{
|
|
|
|
switch (err) {
|
|
|
|
|
|
|
|
case ENOSPC:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: Not all the packets could be written to \"%s\" because there is "
|
|
|
|
"no space left on the file system.\n",
|
|
|
|
fname);
|
|
|
|
break;
|
|
|
|
|
|
|
|
#ifdef EDQUOT
|
|
|
|
case EDQUOT:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: Not all the packets could be written to \"%s\" because you are "
|
|
|
|
"too close to, or over your disk quota.\n",
|
|
|
|
fname);
|
|
|
|
break;
|
|
|
|
#endif
|
|
|
|
|
|
|
|
case WTAP_ERR_CANT_CLOSE:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: \"%s\" couldn't be closed for some unknown reason.\n",
|
|
|
|
fname);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_SHORT_WRITE:
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: Not all the packets could be written to \"%s\".\n",
|
|
|
|
fname);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
if (is_close) {
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: \"%s\" could not be closed: %s.\n",
|
|
|
|
fname, wtap_strerror(err));
|
|
|
|
} else {
|
|
|
|
fprintf(stderr,
|
|
|
|
"tethereal: An error occurred while writing to \"%s\": %s.\n",
|
|
|
|
fname, wtap_strerror(err));
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2000-01-22 07:19:34 +00:00
|
|
|
static void
|
2001-10-04 08:30:36 +00:00
|
|
|
wtap_dispatch_cb_print(u_char *user, const struct wtap_pkthdr *phdr,
|
|
|
|
long offset, union wtap_pseudo_header *pseudo_header, const u_char *buf)
|
2000-01-22 07:19:34 +00:00
|
|
|
{
|
|
|
|
cb_args_t *args = (cb_args_t *) user;
|
|
|
|
capture_file *cf = args->cf;
|
|
|
|
frame_data fdata;
|
|
|
|
gboolean passed;
|
2000-11-06 09:28:43 +00:00
|
|
|
print_args_t print_args;
|
2000-10-06 10:11:40 +00:00
|
|
|
epan_dissect_t *edt;
|
2001-12-06 04:25:09 +00:00
|
|
|
gboolean create_proto_tree;
|
2000-11-06 09:28:43 +00:00
|
|
|
int i;
|
2000-01-22 07:19:34 +00:00
|
|
|
|
|
|
|
cf->count++;
|
|
|
|
|
2000-05-18 09:09:50 +00:00
|
|
|
fill_in_fdata(&fdata, cf, phdr, pseudo_header, offset);
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
passed = TRUE;
|
|
|
|
if (cf->rfcode || verbose)
|
2001-12-06 04:25:09 +00:00
|
|
|
create_proto_tree = TRUE;
|
2000-01-14 06:46:00 +00:00
|
|
|
else
|
2001-12-06 04:25:09 +00:00
|
|
|
create_proto_tree = FALSE;
|
2001-12-16 22:16:14 +00:00
|
|
|
/* The protocol tree will be "visible", i.e., printed, only if we're
|
|
|
|
not printing a summary.
|
|
|
|
|
|
|
|
We only need the columns if we're *not* verbose; in verbose mode,
|
2001-12-10 02:12:53 +00:00
|
|
|
we print the protocol tree, not the protocol summary. */
|
2001-12-18 19:09:08 +00:00
|
|
|
edt = epan_dissect_new(create_proto_tree, verbose);
|
|
|
|
if (cf->rfcode) {
|
|
|
|
epan_dissect_prime_dfilter(edt, cf->rfcode);
|
|
|
|
}
|
|
|
|
epan_dissect_run(edt, pseudo_header, buf, &fdata, verbose ? NULL : &cf->cinfo);
|
|
|
|
if (cf->rfcode) {
|
2001-02-01 20:21:25 +00:00
|
|
|
passed = dfilter_apply_edt(cf->rfcode, edt);
|
2001-12-18 19:09:08 +00:00
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
if (passed) {
|
|
|
|
/* The packet passed the read filter. */
|
|
|
|
if (verbose) {
|
|
|
|
/* Print the information in the protocol tree. */
|
|
|
|
print_args.to_file = TRUE;
|
|
|
|
print_args.format = PR_FMT_TEXT;
|
|
|
|
print_args.print_summary = FALSE;
|
2000-01-17 07:49:03 +00:00
|
|
|
print_args.print_hex = print_hex;
|
2000-01-14 06:46:00 +00:00
|
|
|
print_args.expand_all = TRUE;
|
2001-07-17 05:32:44 +00:00
|
|
|
print_args.suppress_unmarked = FALSE;
|
2001-12-06 04:25:09 +00:00
|
|
|
proto_tree_print(FALSE, &print_args, (GNode *)edt->tree,
|
2001-06-08 08:50:51 +00:00
|
|
|
&fdata, stdout);
|
2000-01-17 07:49:03 +00:00
|
|
|
if (!print_hex) {
|
|
|
|
/* "print_hex_data()" will put out a leading blank line, as well
|
|
|
|
as a trailing one; print one here, to separate the packets,
|
|
|
|
only if "print_hex_data()" won't be called. */
|
|
|
|
printf("\n");
|
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
} else {
|
|
|
|
/* Just fill in the columns. */
|
2001-12-18 19:09:08 +00:00
|
|
|
epan_dissect_fill_in_columns(edt);
|
2000-11-06 09:28:43 +00:00
|
|
|
|
|
|
|
/* Now print them. */
|
|
|
|
for (i = 0; i < cf->cinfo.num_cols; i++) {
|
|
|
|
switch (cf->cinfo.col_fmt[i]) {
|
|
|
|
case COL_NUMBER:
|
|
|
|
/*
|
|
|
|
* Don't print this if we're doing a live capture from a network
|
|
|
|
* interface - if we're doing a live capture, you won't be
|
|
|
|
* able to look at the capture in the future (it's not being
|
|
|
|
* saved anywhere), so the frame numbers are unlikely to be
|
|
|
|
* useful.
|
|
|
|
*
|
|
|
|
* (XXX - it might be nice to be able to save and print at
|
|
|
|
* the same time, sort of like an "Update list of packets
|
|
|
|
* in real time" capture in Ethereal.)
|
|
|
|
*/
|
|
|
|
if (cf->iface != NULL)
|
|
|
|
continue;
|
|
|
|
printf("%3s", cf->cinfo.col_data[i]);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_CLS_TIME:
|
|
|
|
case COL_REL_TIME:
|
|
|
|
case COL_ABS_TIME:
|
|
|
|
case COL_ABS_DATE_TIME: /* XXX - wider */
|
|
|
|
printf("%10s", cf->cinfo.col_data[i]);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_DEF_SRC:
|
|
|
|
case COL_RES_SRC:
|
|
|
|
case COL_UNRES_SRC:
|
|
|
|
case COL_DEF_DL_SRC:
|
|
|
|
case COL_RES_DL_SRC:
|
|
|
|
case COL_UNRES_DL_SRC:
|
|
|
|
case COL_DEF_NET_SRC:
|
|
|
|
case COL_RES_NET_SRC:
|
|
|
|
case COL_UNRES_NET_SRC:
|
|
|
|
printf("%12s", cf->cinfo.col_data[i]);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_DEF_DST:
|
|
|
|
case COL_RES_DST:
|
|
|
|
case COL_UNRES_DST:
|
|
|
|
case COL_DEF_DL_DST:
|
|
|
|
case COL_RES_DL_DST:
|
|
|
|
case COL_UNRES_DL_DST:
|
|
|
|
case COL_DEF_NET_DST:
|
|
|
|
case COL_RES_NET_DST:
|
|
|
|
case COL_UNRES_NET_DST:
|
|
|
|
printf("%-12s", cf->cinfo.col_data[i]);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
printf("%s", cf->cinfo.col_data[i]);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (i != cf->cinfo.num_cols - 1) {
|
|
|
|
/*
|
|
|
|
* This isn't the last column, so we need to print a
|
|
|
|
* separator between this column and the next.
|
|
|
|
*
|
|
|
|
* If we printed a network source and are printing a
|
|
|
|
* network destination of the same type next, separate
|
|
|
|
* them with "->"; if we printed a network destination
|
|
|
|
* and are printing a network source of the same type
|
|
|
|
* next, separate them with "<-"; otherwise separate them
|
|
|
|
* with a space.
|
|
|
|
*/
|
|
|
|
switch (cf->cinfo.col_fmt[i]) {
|
|
|
|
|
|
|
|
case COL_DEF_SRC:
|
|
|
|
case COL_RES_SRC:
|
|
|
|
case COL_UNRES_SRC:
|
|
|
|
switch (cf->cinfo.col_fmt[i + 1]) {
|
|
|
|
|
|
|
|
case COL_DEF_DST:
|
|
|
|
case COL_RES_DST:
|
|
|
|
case COL_UNRES_DST:
|
|
|
|
printf(" -> ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
putchar(' ');
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_DEF_DL_SRC:
|
|
|
|
case COL_RES_DL_SRC:
|
|
|
|
case COL_UNRES_DL_SRC:
|
|
|
|
switch (cf->cinfo.col_fmt[i + 1]) {
|
|
|
|
|
|
|
|
case COL_DEF_DL_DST:
|
|
|
|
case COL_RES_DL_DST:
|
|
|
|
case COL_UNRES_DL_DST:
|
|
|
|
printf(" -> ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
putchar(' ');
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_DEF_NET_SRC:
|
|
|
|
case COL_RES_NET_SRC:
|
|
|
|
case COL_UNRES_NET_SRC:
|
|
|
|
switch (cf->cinfo.col_fmt[i + 1]) {
|
|
|
|
|
|
|
|
case COL_DEF_NET_DST:
|
|
|
|
case COL_RES_NET_DST:
|
|
|
|
case COL_UNRES_NET_DST:
|
|
|
|
printf(" -> ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
putchar(' ');
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_DEF_DST:
|
|
|
|
case COL_RES_DST:
|
|
|
|
case COL_UNRES_DST:
|
|
|
|
switch (cf->cinfo.col_fmt[i + 1]) {
|
|
|
|
|
|
|
|
case COL_DEF_SRC:
|
|
|
|
case COL_RES_SRC:
|
|
|
|
case COL_UNRES_SRC:
|
|
|
|
printf(" <- ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
putchar(' ');
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_DEF_DL_DST:
|
|
|
|
case COL_RES_DL_DST:
|
|
|
|
case COL_UNRES_DL_DST:
|
|
|
|
switch (cf->cinfo.col_fmt[i + 1]) {
|
|
|
|
|
|
|
|
case COL_DEF_DL_SRC:
|
|
|
|
case COL_RES_DL_SRC:
|
|
|
|
case COL_UNRES_DL_SRC:
|
|
|
|
printf(" <- ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
putchar(' ');
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case COL_DEF_NET_DST:
|
|
|
|
case COL_RES_NET_DST:
|
|
|
|
case COL_UNRES_NET_DST:
|
|
|
|
switch (cf->cinfo.col_fmt[i + 1]) {
|
|
|
|
|
|
|
|
case COL_DEF_NET_SRC:
|
|
|
|
case COL_RES_NET_SRC:
|
|
|
|
case COL_UNRES_NET_SRC:
|
|
|
|
printf(" <- ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
putchar(' ');
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
putchar(' ');
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
2000-11-09 07:29:59 +00:00
|
|
|
putchar('\n');
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
2000-01-17 07:49:03 +00:00
|
|
|
if (print_hex) {
|
2001-03-23 18:44:20 +00:00
|
|
|
print_hex_data(stdout, print_args.format, &fdata);
|
2000-11-06 09:28:43 +00:00
|
|
|
putchar('\n');
|
2000-01-17 07:49:03 +00:00
|
|
|
}
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
2001-02-18 03:38:44 +00:00
|
|
|
|
|
|
|
/* The ANSI C standard does not appear to *require* that a line-buffered
|
|
|
|
stream be flushed to the host environment whenever a newline is
|
|
|
|
written, it just says that, on such a stream, characters "are
|
|
|
|
intended to be transmitted to or from the host environment as a
|
|
|
|
block when a new-line character is encountered".
|
|
|
|
|
|
|
|
The Visual C++ 6.0 C implementation doesn't do what is intended;
|
|
|
|
even if you set a stream to be line-buffered, it still doesn't
|
|
|
|
flush the buffer at the end of every line.
|
|
|
|
|
|
|
|
So, if the "-l" flag was specified, we flush the standard output
|
|
|
|
at the end of a packet. This will do the right thing if we're
|
|
|
|
printing packet summary lines, and, as we print the entire protocol
|
|
|
|
tree for a single packet without waiting for anything to happen,
|
|
|
|
it should be as good as line-buffered mode if we're printing
|
|
|
|
protocol trees. (The whole reason for the "-l" flag in either
|
|
|
|
tcpdump or Tethereal is to allow the output of a live capture to
|
|
|
|
be piped to a program or script and to have that script see the
|
|
|
|
information for the packet as soon as it's printed, rather than
|
|
|
|
having to wait until a standard I/O buffer fills up. */
|
|
|
|
if (line_buffered)
|
|
|
|
fflush(stdout);
|
2000-05-18 08:35:01 +00:00
|
|
|
|
2000-10-06 10:11:40 +00:00
|
|
|
epan_dissect_free(edt);
|
|
|
|
|
2001-03-24 09:24:41 +00:00
|
|
|
clear_fdata(&fdata);
|
2000-01-14 06:46:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
char *
|
In Tethereal:
When capturing, report errors trying to create the output file
with "file_open_error_message()".
Make the "for_writing" argument to "file_open_error_message()" a
"gboolean", as it's either TRUE (if the file is being opened for
writing) or FALSE (if it's being opened for reading).
Report EISDIR as "XXX is a directory (folder), not a file.".
When checking whether an "open()" of a capture file succeeded, check
whether "open()" returns a negative number, not whether it returns 0.
In "wtap_open_offline()", if the file to be opened is a directory,
return EISDIR, not WTAP_ERR_NOT_REGULAR_FILE, so that the error message
can say "that's a directory, not a file".
If "wtap_open_offline()" returns WTAP_ERR_NOT_REGULAR_FILE, don't just
say the file is "invalid", say it's a "special file" or socket or some
other weird type of file.
svn path=/trunk/; revision=2144
2000-07-20 09:39:43 +00:00
|
|
|
file_open_error_message(int err, gboolean for_writing)
|
2000-01-14 06:46:00 +00:00
|
|
|
{
|
|
|
|
char *errmsg;
|
|
|
|
static char errmsg_errno[1024+1];
|
|
|
|
|
|
|
|
switch (err) {
|
|
|
|
|
|
|
|
case WTAP_ERR_NOT_REGULAR_FILE:
|
In Tethereal:
When capturing, report errors trying to create the output file
with "file_open_error_message()".
Make the "for_writing" argument to "file_open_error_message()" a
"gboolean", as it's either TRUE (if the file is being opened for
writing) or FALSE (if it's being opened for reading).
Report EISDIR as "XXX is a directory (folder), not a file.".
When checking whether an "open()" of a capture file succeeded, check
whether "open()" returns a negative number, not whether it returns 0.
In "wtap_open_offline()", if the file to be opened is a directory,
return EISDIR, not WTAP_ERR_NOT_REGULAR_FILE, so that the error message
can say "that's a directory, not a file".
If "wtap_open_offline()" returns WTAP_ERR_NOT_REGULAR_FILE, don't just
say the file is "invalid", say it's a "special file" or socket or some
other weird type of file.
svn path=/trunk/; revision=2144
2000-07-20 09:39:43 +00:00
|
|
|
errmsg = "The file \"%s\" is a \"special file\" or socket or other non-regular file.";
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_FILE_UNKNOWN_FORMAT:
|
|
|
|
case WTAP_ERR_UNSUPPORTED:
|
|
|
|
/* Seen only when opening a capture file for reading. */
|
2000-02-11 06:53:31 +00:00
|
|
|
errmsg = "The file \"%s\" is not a capture file in a format Tethereal understands.";
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_UNSUPPORTED_FILE_TYPE:
|
|
|
|
/* Seen only when opening a capture file for writing. */
|
2000-02-11 06:53:31 +00:00
|
|
|
errmsg = "Tethereal does not support writing capture files in that format.";
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_UNSUPPORTED_ENCAP:
|
|
|
|
case WTAP_ERR_ENCAP_PER_PACKET_UNSUPPORTED:
|
2000-02-19 08:00:08 +00:00
|
|
|
if (for_writing)
|
|
|
|
errmsg = "Tethereal cannot save this capture in that format.";
|
|
|
|
else
|
|
|
|
errmsg = "The file \"%s\" is a capture for a network type that Tethereal doesn't support.";
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_BAD_RECORD:
|
|
|
|
errmsg = "The file \"%s\" appears to be damaged or corrupt.";
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_CANT_OPEN:
|
|
|
|
if (for_writing)
|
|
|
|
errmsg = "The file \"%s\" could not be created for some unknown reason.";
|
|
|
|
else
|
|
|
|
errmsg = "The file \"%s\" could not be opened for some unknown reason.";
|
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_SHORT_READ:
|
|
|
|
errmsg = "The file \"%s\" appears to have been cut short"
|
2001-12-04 23:38:55 +00:00
|
|
|
" in the middle of a packet or other data.";
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case WTAP_ERR_SHORT_WRITE:
|
|
|
|
errmsg = "A full header couldn't be written to the file \"%s\".";
|
|
|
|
break;
|
|
|
|
|
|
|
|
case ENOENT:
|
|
|
|
if (for_writing)
|
|
|
|
errmsg = "The path to the file \"%s\" does not exist.";
|
|
|
|
else
|
|
|
|
errmsg = "The file \"%s\" does not exist.";
|
|
|
|
break;
|
|
|
|
|
|
|
|
case EACCES:
|
|
|
|
if (for_writing)
|
|
|
|
errmsg = "You do not have permission to create or write to the file \"%s\".";
|
|
|
|
else
|
|
|
|
errmsg = "You do not have permission to read the file \"%s\".";
|
In Tethereal:
When capturing, report errors trying to create the output file
with "file_open_error_message()".
Make the "for_writing" argument to "file_open_error_message()" a
"gboolean", as it's either TRUE (if the file is being opened for
writing) or FALSE (if it's being opened for reading).
Report EISDIR as "XXX is a directory (folder), not a file.".
When checking whether an "open()" of a capture file succeeded, check
whether "open()" returns a negative number, not whether it returns 0.
In "wtap_open_offline()", if the file to be opened is a directory,
return EISDIR, not WTAP_ERR_NOT_REGULAR_FILE, so that the error message
can say "that's a directory, not a file".
If "wtap_open_offline()" returns WTAP_ERR_NOT_REGULAR_FILE, don't just
say the file is "invalid", say it's a "special file" or socket or some
other weird type of file.
svn path=/trunk/; revision=2144
2000-07-20 09:39:43 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
case EISDIR:
|
|
|
|
errmsg = "\"%s\" is a directory (folder), not a file.";
|
2000-01-14 06:46:00 +00:00
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
2000-08-19 18:20:59 +00:00
|
|
|
snprintf(errmsg_errno, sizeof(errmsg_errno),
|
|
|
|
"The file \"%%s\" could not be opened: %s.",
|
|
|
|
wtap_strerror(err));
|
2000-01-14 06:46:00 +00:00
|
|
|
errmsg = errmsg_errno;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return errmsg;
|
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
open_cap_file(char *fname, gboolean is_tempfile, capture_file *cf)
|
|
|
|
{
|
|
|
|
wtap *wth;
|
|
|
|
int err;
|
|
|
|
int fd;
|
|
|
|
struct stat cf_stat;
|
|
|
|
char err_msg[2048+1];
|
|
|
|
|
2000-05-18 09:09:50 +00:00
|
|
|
wth = wtap_open_offline(fname, &err, FALSE);
|
2000-01-14 06:46:00 +00:00
|
|
|
if (wth == NULL)
|
|
|
|
goto fail;
|
|
|
|
|
|
|
|
/* Find the size of the file. */
|
|
|
|
fd = wtap_fd(wth);
|
|
|
|
if (fstat(fd, &cf_stat) < 0) {
|
|
|
|
err = errno;
|
|
|
|
wtap_close(wth);
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The open succeeded. Fill in the information for this file. */
|
|
|
|
|
|
|
|
/* Initialize the table of conversations. */
|
2000-09-27 04:55:05 +00:00
|
|
|
epan_conversation_init();
|
2000-01-14 06:46:00 +00:00
|
|
|
|
|
|
|
/* Initialize protocol-specific variables */
|
|
|
|
init_all_protocols();
|
|
|
|
|
2001-06-08 06:27:16 +00:00
|
|
|
/* Initialize the common data structures for fragment reassembly.
|
|
|
|
Must be done *after* "init_all_protocols()", as "init_all_protocols()"
|
|
|
|
may free up space for fragments, which it finds by using the
|
|
|
|
data structures that "reassemble_init()" frees. */
|
|
|
|
reassemble_init();
|
|
|
|
|
2000-01-14 06:46:00 +00:00
|
|
|
cf->wth = wth;
|
|
|
|
cf->filed = fd;
|
|
|
|
cf->f_len = cf_stat.st_size;
|
|
|
|
|
|
|
|
/* Set the file name because we need it to set the follow stream filter.
|
|
|
|
XXX - is that still true? We need it for other reasons, though,
|
|
|
|
in any case. */
|
|
|
|
cf->filename = g_strdup(fname);
|
|
|
|
|
|
|
|
/* Indicate whether it's a permanent or temporary file. */
|
|
|
|
cf->is_tempfile = is_tempfile;
|
|
|
|
|
|
|
|
/* If it's a temporary capture buffer file, mark it as not saved. */
|
|
|
|
cf->user_saved = !is_tempfile;
|
|
|
|
|
|
|
|
cf->cd_t = wtap_file_type(cf->wth);
|
|
|
|
cf->count = 0;
|
2001-02-11 09:28:17 +00:00
|
|
|
cf->drops_known = FALSE;
|
2000-01-14 06:46:00 +00:00
|
|
|
cf->drops = 0;
|
|
|
|
cf->esec = 0;
|
|
|
|
cf->eusec = 0;
|
|
|
|
cf->snap = wtap_snapshot_length(cf->wth);
|
|
|
|
cf->progbar_quantum = 0;
|
|
|
|
cf->progbar_nextstep = 0;
|
|
|
|
firstsec = 0, firstusec = 0;
|
|
|
|
prevsec = 0, prevusec = 0;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
fail:
|
|
|
|
snprintf(err_msg, sizeof err_msg, file_open_error_message(err, FALSE), fname);
|
|
|
|
fprintf(stderr, "tethereal: %s\n", err_msg);
|
|
|
|
return (err);
|
|
|
|
}
|