We require libpcap 0.8 or later, so somebody's *really* have to go out
of their way to get a version of Wireshark running with a pre-0.6
libpcap.
Change-Id: I329b3a37cd37ca5d9e76db447daabfe1dc47e75d
Reviewed-on: https://code.wireshark.org/review/36422
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2004 called, they want their libpcap/WinPcap back.
RHEL 6 initially shipped with libpcap 1.0; even old Enterprise(TM)
versions of OSes ship with something shinier than 0.7.x these days.
This lets us get rid of a bunch of #ifdefs and workaround code for
missing APIs.
Change-Id: I862cb027418b0a0c0f45a26979acea82f93f833b
Reviewed-on: https://code.wireshark.org/review/36383
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Much better to use a known library than create it ourselves.
Also remove get_tempfile_path as it's not used.
Bug: 15992
Change-Id: I17b9bd879e8bdb540f79db83c6c138f8ee724764
Reviewed-on: https://code.wireshark.org/review/34420
Reviewed-by: Tomasz Moń <desowin@gmail.com>
Petri-Dish: Tomasz Moń <desowin@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Roland Knall <rknall@gmail.com>
Option string composition has grown organically over time and is
depending on compilation options also. This results in somewhat complex
macro definitions and the use of the string concatenation feature of the
C compiler. This change tries to clean up some of this magic by removing
definitions of empty strings and merging of adjacent strings.
Change-Id: I968449ea9b564915bee468a0cac0e114983ceebe
Reviewed-on: https://code.wireshark.org/review/35429
Reviewed-by: Jaap Keuter <jaap.keuter@xs4all.nl>
Petri-Dish: Jaap Keuter <jaap.keuter@xs4all.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Documentation of the Tshark and dumpcap command line options between
help text, manual page and user's guide diverged over time. One aspect
of this is the implementation of more long options. This change tries to
update all documentation to be complete and in sync again.
Change-Id: Ie8bee013df8d209080fcf288072774f18f9ff51f
Reviewed-on: https://code.wireshark.org/review/35261
Reviewed-by: Jaap Keuter <jaap.keuter@xs4all.nl>
Petri-Dish: Jaap Keuter <jaap.keuter@xs4all.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
Ensure to call load_wpcap() berfore building the version info string.
Bug: 16108
Change-Id: Ida7ecf6ad5186f816e1bf33902a0ae70f7f36b40
Reviewed-on: https://code.wireshark.org/review/34719
Reviewed-by: Pascal Quantin <pascal@wireshark.org>
Petri-Dish: Pascal Quantin <pascal@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Wireshark does create named pipes and waits for the child process to
connect. The named pipe server handle is inheritable and thus available
in child dumpcap process. Pass the handle identifier instead of named
pipe name so dumpcap can use it.
Bug: 13653
Change-Id: Id2c019f67a63f1ea3d98b9da2153d6de5078cd01
Reviewed-on: https://code.wireshark.org/review/34503
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Provide _U_ macro definition for Visual Studio.
Change the way _U_ macro is ifdefed for some targets to allow Visual
Studio to recognize it.
Ping-Bug: 15832
Change-Id: Ic7ce145cbe9e8aa751d64c9c09ce8ba6c1bbbd30
Reviewed-on: https://code.wireshark.org/review/34530
Tested-by: Petri Dish Buildbot
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Fall back on the Wayback Machine for some links.
Change-Id: I6a44a2caaeb4fa521c2f08196e7c36069e3bb842
Reviewed-on: https://code.wireshark.org/review/34103
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Reproduce with: dumpcap -pdf bad
Change-Id: I8c1f80c9d88262bc57651e886740083ea8e6ad52
Fixes: 4d6cb744df ("Add a "-d" flag to dumpcap")
Reviewed-on: https://code.wireshark.org/review/33863
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Have separate errors for "the interface went down" on Linux and "the
interface no longer exists" on *BSD/Darwin/Windows.
Change-Id: I1951c647e88eb7ebeb20a72d9e03a2072168c8e5
Reviewed-on: https://code.wireshark.org/review/33794
Reviewed-by: Guy Harris <guy@alum.mit.edu>
A recent change to libpcap means that the error message if an interface
disappears (e.g., removing a hot-pluggable device, or shutting down a
PPP connection that was dynamically set up) is "The interface
disappeared" rather than "The interface went down" - on FreeBSD,
DragonFly BSD, OpenBSD, and Darwin-based OSes, capturing continues with
no error if the interface is configured down, but either ENXIO or EIO
(depending on the OS) is delivered if the interface disappears.
Treat that error as another one to show the user without the "report
this to the Wireshark developers" note.
Change-Id: I477d87957ce30a52385f07f4b47a7824e3fca2c7
Reviewed-on: https://code.wireshark.org/review/33790
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Linux isn't the only platform where libpcap may return "The interface
went down".
Put the test for "The interface went down" first.
Change-Id: I5241f0744bd12eb5e090b8e1717268bdf8392ea7
Reviewed-on: https://code.wireshark.org/review/33785
Reviewed-by: Guy Harris <guy@alum.mit.edu>
pcapng.h defines some typedefs for its structs for more readability.
Use them in dumpcap.
Change-Id: I7f4cc47819314732ddcd5076b38f68c52aedb071
Reviewed-on: https://code.wireshark.org/review/33329
Petri-Dish: Dario Lombardo <lomato@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
No, not every machine on which Wireshark is built, run, and tested is
little-endian. See bugs 15772 and 15754.
Change-Id: Ice1d012e1a788f6a7bb031bdf0e2f01f523a91ec
Reviewed-on: https://code.wireshark.org/review/33192
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Those routines exist on both Windows and UN*X, but they don't do
anything on UN*X (they could if it were ever necessary).
That eliminates some #ifdefs, and also means that the gory details of
initializing Winsock, including the Winsock version being requested,
are buried in one routine.
The initialization routine returns NULL on success and a pointer to a
g_malloc()ated error message on failure; report the error to the user,
along with a "report this to the Wireshark developers" suggestion.
That means including wsutil/socket.h, which obviates the need to include
some headers for socket APIs, as it includes them for you.
Change-Id: I9327bbf25effbb441e4217edc5354a4d5ab07186
Reviewed-on: https://code.wireshark.org/review/33045
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
We only need to call WSAStartup and WSACleanup once, so do so. If we
encounter an error, report it using win32strerror.
Use win32strerror instead of FormatMessage in cap_open_socket.
Change-Id: I59868d6baecb1dfc98946dc68c2346b79436d2c7
Reviewed-on: https://code.wireshark.org/review/33044
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Gerald Combs <gerald@wireshark.org>
It prevents format checking; use "%s" as the format string.
Change-Id: Ic05ed64f4b2b6c243f072b0b306e0e06aa1eb3fd
Reviewed-on: https://code.wireshark.org/review/33041
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Make sure we link each application that calls WSAStartup with ws2_32.lib.
Pass version 2.2 to WSAStartup. Wikipedia says it was introduced in 1996,
so we should be OK.
Ping-Bug: 15711
Change-Id: I431839e930e7c646669af7373789640b5180ec28
Reviewed-on: https://code.wireshark.org/review/33033
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Reviewed-by: Tomasz Moń <desowin@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
The deadlock would occur if pipe was closed before the requested number
of bytes was read.
Bug: 15695
Change-Id: I1236dd397d3c268dd52233ea78fb58165d0c9398
Reviewed-on: https://code.wireshark.org/review/32907
Reviewed-by: Anders Broman <a.broman58@gmail.com>
(Routines, so that if we internationalize strings not in the Qt code,
this can return the appropriately translated version.)
Change-Id: I1c169d79acde2f0545af7af2a737883d58f52509
Reviewed-on: https://code.wireshark.org/review/32549
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
This fixes several "Use of uninitialised value" and "Conditional
jump or move depends on uninitialised value(s)" errors detected by
valgrind.
Change-Id: I682bd4a1d2e5ef23969baf34b3e438fcd7499bd5
Reviewed-on: https://code.wireshark.org/review/32397
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Set a bigger IO buffer to avoid syscall overhead.
See https://github.com/the-tcpdump-group/libpcap/issues/792
Change-Id: If370da5ab2b70a9d0c925dd7c4c5c135c675c3f6
Reviewed-on: https://code.wireshark.org/review/31326
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Convert WinPcap references and URLs in error messages and the FAQ
to their Npcap equivalents. Remove some obsolete FAQ entries.
Change-Id: I695d358a2c9cff0939f4ea84ba02d4c62ad7dd01
Reviewed-on: https://code.wireshark.org/review/31943
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
'save_file' is used both for holding the -w command-line argument as
well as the current filename that is being written. In ringbuffer mode,
the former is already freed while the latter changes after rotation. Be
sure to free all ringbuffer filenames on exit.
Fixes test failures due to ASAN reporting memory leaks for:
test_dumpcap_ringbuffer_filesize
test_dumpcap_pcapng_single_in_multi_out
test_dumpcap_pcapng_multi_in_multi_out
test_dumpcap_ringbuffer_packets
Change-Id: Ib817d8340275d7afa7e149dcfbbc59ed78293c34
Reviewed-on: https://code.wireshark.org/review/31739
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Capture tests fail under ASAN due to leaking capture_opts->save_file.
Since v2.9.0rc0-1493-g787d61c0a4, capture_opts_cleanup takes care of
freeing "save_file", so avoid clearing the pointer.
Change-Id: Ice90efe0959cc8016f47db20970bd2397909e28d
Reviewed-on: https://code.wireshark.org/review/31727
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Restore the "main" name since that is used everywhere else except for
Windows. On Windows, "main" is renamed via a macro to avoid a conflict
with "wmain" and to allow it to be called in cli_main.c.
For those wondering, GUI applications (such as Qt) have a different
entry point, namely WinMain. In Qt5, src/winmain/qtmain_win.cpp defines
WinMain, but seems to convert its arguments from Unicode to CP_ACP
(ASCII). It might not support UTF-8, but I did not verify this.
Change-Id: I93fa59324eb2ef95a305b08fc5ba34d49cc73bf0
Reviewed-on: https://code.wireshark.org/review/31208
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
cmdarg_err() is for reporting errors for command-line programs and
command-line errors in GUI programs; it's not something for any of the
Wireshark libraries to use.
The various routines for parsing numerical command-line arguments are
not for general use, they're just for use when parsing arguments.
Change-Id: I100bd4a55ab8ee4497f41d9651b0c5670e6c1e7f
Reviewed-on: https://code.wireshark.org/review/31281
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Add "Please report this to us" and "Please report this to whoever wrote
the program that's writing to the pipe" secondary error messages. Use
the latter for most of the errors, as the most likely cause is that the
program writing to the pipe is messing up somehow.
If we don't recoginze the first 4 bytes of the file, say "Data written
to the pipe is neither in a supported pcap format nor in pcapng
format." - it's not necessarily a pcap file.
Speak of "pcap" rather than "libpcap" format - it's not completely tied
to libpcap (although two of the libraries not called "libpcap" that read
it are basically libpcap+a Windows driver+a library for the Windows
driver, at this point), and the suffix generally used it ".pcap".
Change-Id: Ifb5518af5cade788294c93a7ac416893f57f6bc8
Reviewed-on: https://code.wireshark.org/review/31273
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Add interface name (colon delimited) to SP_DROPS ('D') message so when dropped
packets are outputted, they include the interface name for clarity.
Bug: 13498
Change-Id: I68cdde4f20a574580f089dc5096d815cde5d3357
Reviewed-on: https://code.wireshark.org/review/31218
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
The pcapng file format specification speaks of a secion block, not
a session block. Let the function name reflect the proper name of
the block it writes.
Change-Id: Id399fae3648c93f4750fedaa297b18f95f2bb96f
Signed-off-by: Jaap Keuter <jaap.keuter@xs4all.nl>
Reviewed-on: https://code.wireshark.org/review/31099
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Have a ws_init_version_info() routine that, given an application name
string:
constructs the app-name-and-version-information string, and
saves it;
adds the initial crash information on platforms that support it,
and saves it.
Have show_version() use the saved information and take no arguments.
Add a show_help_header() routine to print the header for --help
command-line options, given a description of the application; it prints
the application name and version information, the description, and the
"See {wireshark.org URL}" line.
Use those routines in various places, including providing the
"application name" string in pcapng SHBs.
Change-Id: I0042a8fcc91aa919ad5c381a8b8674a007ce66df
Reviewed-on: https://code.wireshark.org/review/31029
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
That means that code is only in one place, rather than having copies of
it in each of those programs.
CLI programs that, on Windows, should get UTF-8 arguments rather than
arguments in the local code page should:
include the top-level cli_main.h header;
define the main function as real_main();
be built with the top-level cli_main.c file.
On UN*X, cli_main.c has a main() program, and just passes the arguments
on to real_main().
On Windows, cli_main.c has a wmain() function that converts the UTF-16
arguments it's handed to UTF-8 arguments, using WideCharToMultiByte() so
that it doesn't use any functions other than those provided by the
system, and then calls real_main() with the argument count and UTF-8
arguments.
Change-Id: I8b11f01dbc5c63fce599d1bef9ad96cd92c3c01e
Reviewed-on: https://code.wireshark.org/review/31017
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
When we capture from multiple interfaces, we won't necessarily write our
IDBs in the same order we read them. This means that we need to call
pcapng_adjust_block when we write packets, not when we read them.
Otherwise we might map a given capture source's local interface number
to the wrong global IDB entry.
Bug: 15311
Change-Id: Ia787d7f167dcd18d432020a715e2321f4060b851
Reviewed-on: https://code.wireshark.org/review/30798
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
If we have a single capture source and that capture source is pcapng and
we're writing a pcapng file, do the following:
- Pass its SHB and IDBs through unmodified. Don't save or write command
line interface IDBs.
- Save the most recent SHB and IDBs so that we can write them when we're
writing multiple output files.
If we have multiple capture sources, do the following:
- Write Dumpcap's SHB.
- Keep a global list of IDBs, consisting of both command line interfaces
and IDBs read from pcapng sources.
- When reading an EPB or ISB, remap its local interface number to its
corresponding global number.
Add Dumpcap pcapng section tests. Make the application IDs in the
"many_interfaces" captures unique.
Change-Id: I2005934c1f83d839727421960005f106d6c682dd
Reviewed-on: https://code.wireshark.org/review/30085
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Check for pipe status only when we no longer have packets. This keeps us
from flushing packets that we should have written.
Change-Id: I714f52597da792a0b228b5e1a1dd3a993dc93681
Reviewed-on: https://code.wireshark.org/review/30651
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Make sure cap_pipe_read_data_bytes sets pcap_src->cap_pipe_err if it
encounters an error or EOF. This fixes a regression introduced in
ga51b3d1d16. Have it return -1 or the number of bytes read similar to
read(2). Explicitly treat its return value as a signed integer.
Change-Id: I3de92859eee45e8d4a24a8c8309a816ef1b7924a
Reviewed-on: https://code.wireshark.org/review/30639
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
If a capture source is a pipe and it reaches the end of its input, don't
stop capturing globally since we might have other active interfaces. We
do need to stop capturing if all of our interfaces are pipes and none of
them are open, so add a check to do so.
Change-Id: Id7f950349e72113c9b4bfeee4f0a9c8a97aefe8c
Reviewed-on: https://code.wireshark.org/review/30615
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Dequeue and write packets in capture_loop_dequeue_packet. This ensures
that we properly handle pcapng packets both inside our capture loop and
after it's finished.
Change-Id: Iacc980c90481b1378761eac83d8044aaddabfdc2
Reviewed-on: https://code.wireshark.org/review/30609
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
If it *is* called when global_capture_opts.use_pcapng is false, don't
just silently drop the packet on the floor, abort.
Change-Id: Idb8f8e4c4ba231cfe674a81da34bf46e00f8247c
Reviewed-on: https://code.wireshark.org/review/30562
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Add capture_loop_wrote_one_packet, which increments the appropriate
counters and checks for autostop and ring buffer conditions. Call it
when we write a pcap or pcapng packet. This fixes `-b packets:NUM` for
pcapng output.
Change-Id: Ie2bdd725fbee59c1ae10b05be84ae9a3a6d80111
Reviewed-on: https://code.wireshark.org/review/30561
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Add the ability to rotate files after a specified number of packets (`-b
packets:NUM`). Move some condition checks to capture_loop_write_packet_cb.
Add `-a packets:NUM` in order to be consistent. It is functionally
equivalent to the `-c` flag.
Add a corresponding "packets" option to the Capture Interfaces dialog
Output tab.
Add initial tests for autostop and ringbuffer conditions.
Change-Id: I66eb968927ed287deb8edb96db96d7c73526c257
Reviewed-on: https://code.wireshark.org/review/30534
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Guy Harris