Have it take a format and argument list as arguments, and have the
formatting done inside the reporting code. That way, we're not relying
on any particular wmem scope working.
If WIRESHARK_ABORT_ON_DISSECTOR_BUG is set, try to add the message to
the crash information (currently only supported in macOS), and print it
to the standard error, before crashing. We won't necessarily have a
usable crash dump to analyze, so we can't rely on that to find the cause
of the crash.
Ping-Bug: 14490
Change-Id: I2b39169c45c84f2ada31efa1d413bd28c140f8f4
Reviewed-on: https://code.wireshark.org/review/26643
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Used to support variable length in QUIC protocol
Bug: 13881
Change-Id: Ia274b1530152376c5fb4e364fc4cf5ab246be1b3
Reviewed-on: https://code.wireshark.org/review/24990
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Craig Jackson <cejackson51@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Allow epan itself to be extended by plugins. Adds the following new plugin
interfaces:
void plugin_epan_init()
void plugin_epan_dissect_init(epan_dissect_t *)
void plugin_epan_dissect_cleanup(epan_dissect_t *)
void plugin_epan_cleanup()
void plugin_epan_register_all_protocols(register_cb, gointer) [OPTIONAL]
void plugin_epan_register_all_handoffs(register_cb, gointer) [OPTIONAL]
Any one of these can be an empty function but the first four must be
present.
The motivation for the change is a better way to implement a language binding
other than registering a fake protocol and stuffing everything into a single
dissector call (and maybe require an extra packet_info field) but I expect
there would be other interesting use cases.
Change-Id: I215d50750ac7561fe25fdcdcfbc6a3f351984785
Reviewed-on: https://code.wireshark.org/review/24813
Petri-Dish: João Valverde <j@v6e.pt>
Tested-by: Petri Dish Buildbot
Reviewed-by: João Valverde <j@v6e.pt>
Put different types of plugins (libwiretap, libwireshark) in different
subdirectories, give libwiretap and libwireshark init routines that
load the plugins, and have them scan the appropriate subdirectories
so that we don't even *try* to, for example, load libwireshark plugins
in programs that only use libwiretap.
Compiled plugins are stored in subfolders of the plugin folders, with
the subfolder name being the Wireshark minor version number (X.Y). There is
another hierarchical level for each Wireshark library (libwireshark, libwscodecs
and libwiretap).
The folder names are respectively plugins/X.Y/{epan,codecs,wiretap}.
Currently we only distribute "epan" (libwireshark) plugins.
Change-Id: I3438787a6f45820d64ba4ca91cbe3c8864708acb
Reviewed-on: https://code.wireshark.org/review/23983
Petri-Dish: João Valverde <j@v6e.pt>
Tested-by: Petri Dish Buildbot
Reviewed-by: João Valverde <j@v6e.pt>
Add the "special handling" of length = 0xFF for single byte or 0xFFFF
for uint16 value means size of field to follow is 0.
Ping-Bug: 14138
Change-Id: I0baa40f63152b9420a6569ca6cc5eba638fbc790
Reviewed-on: https://code.wireshark.org/review/24428
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Craig Jackson <cejackson51@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Also update ENC_VARINT_PROTOBUF documentation while we're at it
Change-Id: I72e1f9175adc0c6a8bb03ceddba04ffd4844a12e
Reviewed-on: https://code.wireshark.org/review/24485
Reviewed-by: Michael Mann <mmann78@netscape.net>
That allows a parallel typedef of ws_in4_addr for guint32.
Change-Id: I03b230247065e0e3840eb87635315a8e523ef562
Reviewed-on: https://code.wireshark.org/review/24073
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Modeled after BASE_PT_XXX, this will format a FT_UINT24 to look a OUI, in the form of:
XX:XX:XX (Manufacturer Name) for display.
For display filtering, it will treat the value as hexadecimal.
It requires that FT_UINT24 be the field type.
Change-Id: I8716ae4dfcd4e854764a2425e2ff13c50f571d52
Reviewed-on: https://code.wireshark.org/review/23869
Reviewed-by: Richard Sharpe
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
FI_BITS_XXX were using bits 5-15 of the field_info->flags bitmask.
Move FI_VARINT to be outside of that range.
Change-Id: I92efcb5644cdbb562537d2813b611e583315874b
Reviewed-on: https://code.wireshark.org/review/23871
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
That's consistent with the other DISSECTOR_ASSERT_FIELD_TYPE... macros.
Change-Id: I1f5711b29ae8a440b0529373eb7903ff122ea18e
Reviewed-on: https://code.wireshark.org/review/23681
Reviewed-by: Guy Harris <guy@alum.mit.edu>
For a sane plugin build environment. Include config.h as the first
header in the .c file instead.
Fix by moving required compiler attribute macros to a new
"ws_attributes.h" API header.
Change-Id: I34f58a927f68c1a0e59686c14d214825149749e1
Reviewed-on: https://code.wireshark.org/review/23400
Petri-Dish: João Valverde <j@v6e.pt>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: João Valverde <j@v6e.pt>
"enterprise-numbers" is converted to tab-separated values and renamed
"enterprises". Unused fields are stripped.
PENs are stored in a hash table loaded at run-time.
User "enterprises" file is loaded from the personal config dir.
Misc make-sminmpec.pl improvements and fixes.
Note: names of type "Entity (formerly ...)" have the formerly part commented out for a cleaner output.
Change-Id: I60c533afbe3e399077fbf432088064471ad3e1e2
Reviewed-on: https://code.wireshark.org/review/22246
Petri-Dish: João Valverde <j@v6e.pt>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: João Valverde <j@v6e.pt>
It does what it says on the label. You get back TRUE or FALSE in a
gboolean.
While we're at it, remove a copied-and-pasted comment that doesn't
apply, and update another comment.
Change-Id: I117391d2ffe44124a614a7f64dad1b389c1ebc6a
Reviewed-on: https://code.wireshark.org/review/21394
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Just like proto_tree_add_item_ret_uint, but with 64-bit support
Change-Id: Ie0cbfda9e63bf21e85df2d674e391a6c0abe92f7
Reviewed-on: https://code.wireshark.org/review/21355
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
It makes it a bit clearer what its purpose is - to allow a value_string
to be used for numeric rather than enumerated fields, giving certain
values of the field a special meaning.
Change the explanation in the documentation to match as well.
Change-Id: Id07b22eee996b79ea5f3473928d29adcabe09bf3
Reviewed-on: https://code.wireshark.org/review/21209
Reviewed-by: Guy Harris <guy@alum.mit.edu>
It's sufficient to include <epan/proto.h>...
...as long as <epan/proto.h> includes <epan/tfs.h>, just as it includes
<epan/value_string.h>.
And, since it's already including <epan/value_string.h>, it doesn't need
to have a definition of struct _value_string as an incomplete type,
given that <epan/value_string.h> gives a definition of it as a complete
type.
Change-Id: Ic296bc0b0d68277ba7e0569412b780fd847ecca2
Reviewed-on: https://code.wireshark.org/review/21033
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
XXX_prime_with_YYY makes it a bit clearer than does XXX_prime_YYY that
we're not priming YYY, we're priming XXX *using* YYY.
Change-Id: I1686b8b5469bc0f0bd6db8551fb6301776a1b133
Reviewed-on: https://code.wireshark.org/review/21031
Reviewed-by: Guy Harris <guy@alum.mit.edu>
BASE_VALS_NO_UNKNOWN is a special value_string value for only a single
(maybe 2) numerical value(s). If a field has the numerical value
that doesn't match anything in the value_string, just the number
is supplied for the field (no "Unknown")
Dissectors that had this use case have been converted in the patch.
Change-Id: Ie63a36cceec2fe4436938ec7e3d7f9e690d2b8d9
Reviewed-on: https://code.wireshark.org/review/20736
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Add a "report a warning message" routine to the "report_err" code in
libwsutil, and rename files and routines appropriately, as they don't
only handle errors any more.
Have a routine read_enabled_and_disabled_protos() that reads all the
files that enable or disable protocols or heuristic dissectors, enables
and disables them based on the contents of those files, and reports
errors itself (as warnings) using the new "report a warning message"
routine. Fix that error reporting to report separately on the disabled
protocols, enabled protocols, and heuristic dissectors files.
Have a routine to set up the enabled and disabled protocols and
heuristic dissectors from the command-line arguments, so it's done the
same way in all programs.
If we try to enable or disable an unknown heuristic dissector via a
command-line argument, report an error.
Update a bunch of comments.
Update the name of disabled_protos_cleanup(), as it cleans up
information for disabled *and* enabled protocols and for heuristic
dissectors.
Support the command-line flags to enable and disable protocols and
heuristic dissectors in tfshark.
Change-Id: I9b8bd29947cccdf6dc34a0540b5509ef941391df
Reviewed-on: https://code.wireshark.org/review/20966
Reviewed-by: Guy Harris <guy@alum.mit.edu>
While at it fix expert info a typo and an calculation.
Change-Id: I071a36edb7eed5f58708b98aebcb24bc6c34f2a8
Reviewed-on: https://code.wireshark.org/review/20766
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Add some new encodings for absolute time stamps, and use them as
appropriate; this fixes some cases where the time stamps in question
were being dissected incorrectly.
For the encodings with seconds and 1/2^32s of a second, don't
arbitrarily give only microsecond resolution; 2^32 is greater than 1
million, and, in fact, at least some NTP RFCs explicitly talk about time
resolution greater than 1 microsecond.
Update references in the RELOAD dissector to reflect the documents in
question having been updated and published as RFCs.
Change-Id: Icbe0b696d65eb622978eb71e99ddf699b84e4fca
Reviewed-on: https://code.wireshark.org/review/20759
Reviewed-by: Guy Harris <guy@alum.mit.edu>
It's some weird hybrid of UN*X time and NTP time stamps, using UN*X's
epoch and NTP's seconds/fractions split. I'm sure they had their
reasons for not using something like struct timespec or regular NTP
time, and instead inventing something that's halfway in between them.
Change-Id: I1f39ec1368af52b82adfa2a22677dfa6e9341309
Reviewed-on: https://code.wireshark.org/review/20711
Reviewed-by: Guy Harris <guy@alum.mit.edu>
From a look at the libosmocom code, time stamps in
GSMTAP_TYPE_OSMOCORE_LOG messages appear to be UN*X struct timevals with
a 4-byte tv_sec, not anything NTP-like with the fraction-of-a-second
part in units of 1/2^32s of a second.
Add ENC_TIME_TIMEVAL to handle time stamps like that, and use it rather
than ENC_TIME_NTP_BASE_ZERO.
Change-Id: Ia1511527ee292fb7725b2a64c0af16d23ff10a6d
Reviewed-on: https://code.wireshark.org/review/20710
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Also add documentation strings to the base values.
Change-Id: I00ac8f154fdd0382106ed27d740e16956520be97
Reviewed-on: https://code.wireshark.org/review/20554
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
This is for dissectors that need distinguishing names either for registering
multiple dissection functions in a single dissector table or for "internal"
dissectors whose just need a name associated with the dissection function.
Features like enable/disable are handled by the "parent" protocol.
This avoids clutter in the "official" protocol list.
Change-Id: I69e7d27d332ae85286f254e95e8d79920da7a9e2
Reviewed-on: https://code.wireshark.org/review/19464
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
There are times when byte arrays don't want to show their value
in the packet tree or there is a field that is the "header" of
a subtree where showing the field value distracts from the tree
display. For these cases, BASE_NO_DISPLAY_VALUE can be used
to not display the value.
Change-Id: I8c9f1f57cd2e663dbee07e2289e7f5e1f22d1e32
Reviewed-on: https://code.wireshark.org/review/19479
Reviewed-by: Michael Mann <mmann78@netscape.net>
We save a list of dissectors that are disabled through the Enabled Protocols
dialog. This is because we assume dissectors are enabled by default.
For dissectors that are disabled by default, we have no way to keep them
enabled through the Enabled Protocols dialog. A dissector that defaults
to being disabled has to be reset to enabled each time Wireshark is launched.
Add a list similar to the disabled list for enabling dissectors that are
disabled by default.
This mostly applies to post-dissectors.
Change-Id: I31a8d97a9fdbc472fe2a8666384e0f8786bb8e9f
Reviewed-on: https://code.wireshark.org/review/19405
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Add handling of STR_ASCII and STR_UNICODE as base types for string
and stringz. Add handling of SEP_DOT, SEP_DASH, SEP_COLON and
SEP_SPACE for bytes and uint_bytes. Add SEP_NONE for completeness.
Change-Id: Ida46c215fee7ec7132ec91ab5dd6cb3de4628920
Reviewed-on: https://code.wireshark.org/review/19337
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Also added a note above field_display_e enum to indicate that this
values are parsed in make-init-lua.pl to build init.lua.
Change-Id: Ibd125684f9a68e1b8116fae0ccbc72147825d75d
Reviewed-on: https://code.wireshark.org/review/19336
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Several calls to proto_tree_add_[float|double]_xxx could be better served
using BASE_UNIT_STRING with a "unit string" in hf_ field.
Added a few more "common" unit string values to unit_strings.[ch]
Change-Id: Id0da7b579403898d20c2667d6c4abcd59d5a48d4
Reviewed-on: https://code.wireshark.org/review/19241
Reviewed-by: Michael Mann <mmann78@netscape.net>
This was inspired by the https://www.wireshark.org/lists/wireshark-dev/201505/msg00029.html thread.
Used TCP and NTP dissectors as the guinea pig with sample use.
Documentation updates includes some unrelated cleanup just because it was noticed.
Change-Id: I59b26e1ca3b95e3473e4757f1759d7ad82976965
Reviewed-on: https://code.wireshark.org/review/19211
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Have a routine that takes a 256-element translation table and uses it to
map various flavors of EBCDIC to Unicode. Have separate translation
tables for "common" EBCDIC (everything that's the same in all EBCDIC
code pages that include the original EBCDIC characters) and EBCDIC code
page 037. Add ENC_EBCDIC_CP037 for code page 037.
Change-Id: Ia882b3c0abef9e30eb54cd47396e6fa0d6342044
Reviewed-on: https://code.wireshark.org/review/19212
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Bug: 13032
Change-Id: I6bf2cc2c43a6262d899a304df6576d9831115966
Reviewed-on: https://code.wireshark.org/review/18350
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Apply mask and bit shift on the returned value.
Change-Id: I00aebc854756f01a25199a259d6d5252abea4349
Reviewed-on: https://code.wireshark.org/review/17958
Reviewed-by: Anders Broman <a.broman58@gmail.com>
No functional change, fixes typos, adds some meaningful function
parameters and tries to clarify the memory management concerns.
Also fix a -Wdocumentation issue in epan/proto.h
Change-Id: I59d1fcd2ce96178e0a64a0709409a9a7a447c7c6
Reviewed-on: https://code.wireshark.org/review/17431
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Change-Id: Ibc43b1976d5827e8c40252a5200852fbcd00b70c
Reviewed-on: https://code.wireshark.org/review/16763
Petri-Dish: João Valverde <j@v6e.pt>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Reviewed-by: João Valverde <j@v6e.pt>
This is an attempt to standardize display/handling of checksum fields for all dissectors.
The main target is for dissectors that do validation, but dissectors that just report the
checksum were also included just to make them easier to find in the future.
Bug: 10620
Bug: 12058
Ping-Bug: 8859
Change-Id: Ia8abd86e42eaf8ed50de6b173409e914b17993bf
Reviewed-on: https://code.wireshark.org/review/16380
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Jeff Morriss <jeff.morriss.ws@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Allow a dissector to mark its protocol as "disabled by default", which
means that the "enable all protocols" routine won't enable it. This is
necessary in order to allow the disabling of protocols not to be
unintentionally changed due to profile changes; see bug 9826.
Change-Id: I3947f794c21350b70a8de06899cfc7715b77f90f
Ping-Bug: 9826
Reviewed-on: https://code.wireshark.org/review/16109
Reviewed-by: Guy Harris <guy@alum.mit.edu>
assertion.
If a dissector forces registration of fields during dissection it needs to do
so in a way that clears the prefix registration. Otherwise epan will call the
registration routine a 2nd time (which will cause us to assert out) if a user
types a display filter (with the dissector's prefix) that doesn't exist.
Update the proto_register_prefix() comments to reflect this.
Change-Id: I3ce29243395fb55192bb5dfd950baa88410ac136
Reviewed-on: https://code.wireshark.org/review/15881
Petri-Dish: Jeff Morriss <jeff.morriss.ws@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Jaap Keuter <jaap.keuter@xs4all.nl>
Guy Harris