Commit Graph

28 Commits

Author SHA1 Message Date
João Valverde 8cd49b2da0 dumpcap: Fix a TODO for Npcap test 2022-02-24 21:15:51 +00:00
João Valverde ac6cbbcda3 Windows: Fix build
For some reason this was not caught by the CI.
2022-02-24 20:29:04 +00:00
David Perry e2fab18853 wsutil: New API to gather compile/runtime info 2022-02-24 13:27:08 +00:00
David Perry fc3f061829 Differentiate `-c` from `-a packets:` 2022-02-11 01:54:53 +00:00
David Perry 1e0d117eb7 Specify directory for temporary captures 2022-02-09 14:32:28 +00:00
Gerald Combs c65f0a5a15 Update our Npcap URLs.
The official Npcap web site is now https://npcap.com/. Update our URLs
to match. Fixes #17838.
2022-01-06 16:12:30 -08:00
Moshe Kaplan 69d54d6f8e Corrects repeated words throughout the code.
Repeated words were found with:
egrep "(\b[a-zA-Z]+) +\1\b" . -Ir
and then manually reviewed.
Non-displayed strings (e.g., in comments)
were also corrected, to ease future review.
2021-12-22 11:01:11 +00:00
João Valverde 0ccd69e530 Replace g_strdup_printf() with ws_strdup_printf()
Use macros from inttypes.h.
2021-12-19 21:21:58 +00:00
João Valverde fe5248717f Replace g_snprintf() with snprintf()
Use macros from inttypes.h with format strings.
2021-12-19 20:06:13 +00:00
Moshe Kaplan 65a651d5b9 capture: Add header files to Doxygen
Add @file markers for capture
headers so that Doxygen will
generate documentation for them.

Additionally, update the doxygen
config file per
7fee50274f
merging the caputils and capchild
directories.
2021-11-30 06:27:26 +00:00
João Valverde edf1e72d0c capture: Lower log level for debug output 2021-11-16 12:47:54 +00:00
João Valverde 59c082c046 Add new global header wireshark.h with guideline
Remove ws_diag_control.h from config.h because that was a workaround
for the lack of a public global header. Fix the resultant build errors.
2021-10-22 06:41:44 +00:00
João Valverde 443f05bc92 Windows: Fix build without libpcap
wireshark\capture\capture-wpcap.c:901:42: error: expected ';', ',' or ')' before '_U_'
 get_runtime_caplibs_version(GString *str _U_)
                                          ^~~
2021-09-23 12:17:20 +01:00
Juha Takala 8bc52f542b Add tshark ringbuffer option '-b nametimenum:value'
This is used to select ringbuffer savefile name template.  Choose one of two
savefile name templates:

If value is 1, make running file number part before start time part; this is
the original and default behaviour (e.g. log_00001_20210828164426.pcap).

If value is greater than 1, make start time part before running number part
(e.g. log_20210828164426_00001.pcap).

The latter makes alphabetical sortig order equal to creation time order, and
keeps related multiple file sets in same directory close to each other (e.g.
while browsing in wireshark "Open file" dialog).

Signed-off-by: Juha Takala <juha.takala+rauta@iki.fi>
2021-09-14 04:52:09 +00:00
Guy Harris 0a9ef601d2 Clean up handling of --capture-comment.
Don't store the comments in a capture_options structure, because that's
available only if we're being built with capture support, and
--capture-comment can be used in TShark when reading a capture file and
writing another capture file, with no live capture taking place.

This means we don't handle that option in capture_opts_add_opt(); handle
it in the programs that support it.

Support writing multiple comments in dumpcap when capturing.

These changes also fix builds without pcap, and makes --capture-comment
work in Wireshark when a capture is started from the command line with
-k.

Update the help messages to indicate that --capture-comment adds a
capture comment, it doesn't change any comment (much less "the" comment,
as there isn't necessarily a single comment).

Update the man pages:

- not to presume that only pcapng files support file comments (even if
that's true now, it might not be true in the future);
- to note that multiple instances of --capture-comment are supported,
and that multiple comments will be written, whether capturing or reading
one file and writing another;
- clarify that Wireshark doesn't *discard* SHB comments other than the
first one, even though it only displays the first one;
2021-07-15 05:43:36 +00:00
David Perry 67b54e8b66 tshark: allow --capture-comment when reading a file
Allows adding one or more capture comments to a new pcapng file when
tshark is reading from a file. Currently, tshark only allows setting one
capture comment, and that only when doing a live capture.

The use case for this feature is given in bug #15005.
I decided to allow multiple capture comments to match the same ability
in `editcap`.

To allow this change, I changed the function signature of
`process_cap_file()` so it takes a `capture_options` struct instead of
individual parameters that affect the capture.
2021-07-14 04:34:52 +00:00
Gerald Combs ff60fcf92d CMake: Adjust wsutil includes and linking.
Mark wsutil's includes SYSTEM PRIVATE. This exposed a lot of targets
that were indirectly picking up include paths via the wsutil target, so
add direct includes where needed. The G.722 and G.726 codecs were
implicilty including tiffio.h; find it explicitly instead.

Mark some of wsutil's libraries PRIVATE, but leave commonly-used ones
PUBLIC.

Ping #17477.
2021-07-14 03:56:05 +00:00
Guy Harris 6d9b0646d8 If opening a capture device provides a warning, show it.
We start the capture anyway, but print a warning message or pop up a
warning dialog first.
2021-06-23 02:31:31 -07:00
João Valverde 7dea683bf1 wslog: Shorten ws_log_message_is_active() name 2021-06-21 00:07:21 +00:00
João Valverde 0e50979b3f Replace g_assert() with ws_assert() 2021-06-19 01:23:31 +00:00
João Valverde a6738d72a0 wslog: Add support for inverted debug matches
The --log-debug and --log-noisy now accepts a '!' to invert the
match and disable the debug (noisy respectively) log level for
the listed domains.

Note this is different from --log-domains, that option
enables/disables the entire log domain itself, regardless of log
level.
2021-06-18 10:43:39 +01:00
João Valverde dd78347a7e capture: Lower priority for some status messages 2021-06-14 22:05:35 +00:00
João Valverde dc7f0b88bb Refactor our logging and extend the wslog API
Experience has shown that:

  1. The current logging methods are not very reliable or practical.
A logging bitmask makes little sense as the user-facing interface (who
would want debug but not crtical messages for example?); it's
computer-friendly and user-unfriendly. More importantly the console
log level preference is initialized too late in the startup process
to be used for the logging subsystem and that fact raises a number
of annoying and hard-to-fix usability issues.

  2. Coding around G_MESSAGES_DEBUG to comply with our log level mask
and not clobber the user's settings or not create unexpected log misses
is unworkable and generally follows the principle of most surprise.
The fact that G_MESSAGES_DEBUG="all" can leak to other programs using
GLib is also annoying.

  3. The non-structured GLib logging API is very opinionated and lacks
configurability beyond replacing the log handler.

  4. Windows GUI has some special code to attach to a console,
but it would be nice to abstract away the rest under a single
interface.

  5. Using this logger seems to be noticeably faster.

Deprecate the console log level preference and extend our API to
implement a log handler in wsutil/wslog.h to provide easy-to-use,
flexible and dependable logging during all execution phases.

Log levels have a hierarchy, from most verbose to least verbose
(debug to error). When a given level is set everything above that
is also enabled.

The log level can be set with an environment variable or a command
line option (parsed as soon as possible but still later than the
environment). The default log level is "message".

Dissector logging is not included because it is not clear what log
domain they should use. An explosion to thousands of domains is
not desirable and putting everything in a single domain is probably
too coarse and noisy. For now I think it makes sense to let them do
their own thing using g_log_default_handler() and continue using the
G_MESSAGES_DEBUG mechanism with specific domains for each individual
dissector.

In the future a mechanism may be added to selectively enable these
domains at runtime while trying to avoid the problems introduced
by G_MESSAGES_DEBUG.
2021-06-11 09:40:28 +00:00
João Valverde 9dbe29e2ec Minor style change to libpcap version string 2021-05-27 17:40:01 +00:00
Guy Harris 57a1514ac7 Cast away the return value of g_strlcpy() and g_strlcat().
Most of the time, the return value tells us nothing useful, as we've
already decided that we're perfectly willing to live with string
truncation.  Hopefully this keeps Coverity from whining that those
routines could return an error code (NARRATOR: They don't) and thus that
we're ignoring the possibility of failure (as indicated, we've already
decided that we can live with string truncation, so truncation is *NOT*
a failure).
2021-04-30 03:19:19 -07:00
Guy Harris fcb56bd1d4 Clean up printing of interface information.
In dumpcap, if we're being run by TShark or Wireshark, if there are no
link-layer types, just provide an empty list to our caller; let them
construct an empty list of link-layer types when they read our output.

In the code that reads that list, don't report an error if the list is
empty, rely on the caller to do so.

Have capture_opts_print_if_capabilities() do more work, moving some
functions from its callers to it.
2021-04-13 23:14:09 -07:00
Tomasz Moń 4bd5830cda CMake: Add ENABLE_VLD option for MSVC
Calling cmake with -DENABLE_VLD=ON when building with Visual Studio,
results in debug configuration being linked to Visual Leak Detector.
By default, Visual Leak Detector outputs the leak summary to Visual
Studio debug window. When ENABLE_VLD is active, VLD is linked to all
wireshark libraries and executables.
2021-04-10 21:53:59 +00:00
João Valverde 7fee50274f Merge the caputils/ and capchild/ directories
The distinction between the different kinds of capture utility
may not warrant a special subfolfer for each, and sometimes the
distinction is not be clear or some functions could stradle
multiple "categories" (like capture_ifinfo.[ch]).

Simplify by having only a generic 'capture' subfolder. The
separate CMake libraries are kept as a way to reuse object code
efficiently.
2021-03-29 06:08:02 +01:00