A conversation in Wireshark might have two endpoints or might have no
endpoints; few if any have one endpoint. Distinguish between
conversations and endpoints.
Libgcrypt 1.8.x is required for a large amount of decryption
support and is the current LTS version of libgcrypt. The 1.6 and
1.7 series have been end-of-life since 2017-06-30 and 2019-06-30,
respectively.
The Linux distributions that have versions of libgcrypt before 1.8.0
are nearing or at end of support (RHEL7, SLES 12, Debian stretch,
Ubuntu 16.04LTS) and can be supported by the Wireshark 3.6 LTS release
series.
Remove an enormous amount of ifdefs based on libgcrypt versions
1.6.0, 1.7.0, and 1.8.0. There will be a second pass for the
commons defines HAVE_LIBGCRYPT_AEAD, HAVE_LIBGCRYPT_CHACHA20, and
HAVE_LIBGCRYPT_CHACHA20_POLY1305, which are now always defined.
The ISAKMP dissector has some comments noting that some workarounds
were used for libgcrypt 1.6 that aren't needed with 1.7; perhaps
that could be updated now.
Let the libwireshark code format the value of the session key, by
setting its display format to SEP_COLON.
Use proto_tree_add_bytes_with_length(), so that the session key becomes
the value of the field; otherwise, the length of the key isn't
specified.
This means we don't need to call bytestring_to_str() (the code in
epan/proto.c calls it for us).
This also plugs a leak of the string generated by bytestring_to_str().
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).
The static arrays are supposed to be arrays of const pointers to int,
not arrays of non-const pointers to const int.
Fixing that means some bugs (scribbling on what's *supposed* to be a
const array) will be caught (see packet-ieee80211-radiotap.c for
examples, the first of which inspired this change and the second of
which was discovered while testing compiles with this change), and
removes the need for some annoying casts.
Also make some of those arrays static while we're at it.
Update documentation and dissector-generator tools.
Change-Id: I789da5fc60aadc15797cefecfd9a9fbe9a130ccc
Reviewed-on: https://code.wireshark.org/review/37517
Petri-Dish: Guy Harris <gharris@sonic.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
d5fc969e57 removed
stdio.h's include. The missing stdio.h broke
the CentOS7 build. This commit removes calls to
fprintf to fix the CentOS7 build.
Change-Id: I3f93973ae6901a30414a75a8156967a0e470db90
Reviewed-on: https://code.wireshark.org/review/37137
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Stop including glib.h in dissectors, this will come in implicitly with
packet.h including proto.h, an essential include file for dissectors.
While at it, config.h is no longer conditional and stdio.h is usually
not needed either. Some other cleanups too.
Change-Id: I60c12f16d7ef1e6398509293031ffed7460d2c61
Reviewed-on: https://code.wireshark.org/review/36969
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Petri-Dish: Jaap Keuter <jaap.keuter@xs4all.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Change all wireshark.org URLs to use https.
Fix some broken links while we're at it.
Change-Id: I161bf8eeca43b8027605acea666032da86f5ea1c
Reviewed-on: https://code.wireshark.org/review/34089
Reviewed-by: Guy Harris <guy@alum.mit.edu>
When adding generated IID and OID bytes to the tree, use a zero offset
and length like we do elsewhere in the dissector.
Bug: 15617
Change-Id: Id900f2aeeef7926706b417622d452ffa72949e8a
Reviewed-on: https://code.wireshark.org/review/32698
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Make the time stamp precision a 4-bit bitfield, so, when combined with
the other bitfields, we have 32 bits. That means we put the flags at
the same structure level as the time stamp precision, so they can be
combined; that gets rid of an extra "flags." for references to the flags.
Put the two pointers next to each other, and after a multiple of 8 bytes
worth of other fields, so that there's no padding before or between them.
It's still not down to 64 bytes, which is the next lower power of 2, so
there's more work to do.
Change-Id: I6f3e9d9f6f48137bbee8f100c152d2c42adb8fbe
Reviewed-on: https://code.wireshark.org/review/31213
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <guy@alum.mit.edu>
UATs are loaded at startup, no need to do it again. Call chain:
epan_load_settings -> read_prefs -> init_prefs -> uat_load_all.
Change-Id: I57caabafb16b0b46fcb6d1621dd6b503154c805c
Reviewed-on: https://code.wireshark.org/review/30958
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Add a new button to UAT dialogs to copy entries from another profile.
Change-Id: I641ba764d8738f738466529d74d4a21ff13075a0
Reviewed-on: https://code.wireshark.org/review/30028
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
In the long run, we'd like to remove the time stamp from the frame_data
structure, as, in Wireshark, and in TShark in two-pass mode, there's one
allocated for every frame in the file, and shrinking the size of that
structure reduces the memory usage.
This removes one obstacle to that.
Change-Id: Ia8f87522cd974555c57e0ac1e742b097e8b0f2fc
Reviewed-on: https://code.wireshark.org/review/29881
Reviewed-by: Guy Harris <guy@alum.mit.edu>
For the moment this mirrors the port_type enumeration (PT_XXX), but the
intent is to move away from using "port types", eliminating most (if not
all)
Added conversation_pt_to_endpoint_type() so that conversations deal with the
correct enumeration. This is for dissector that use pinfo->ptype as input
to conversation APIs. Explicit use of port types are converted to using
ENDPOINT_XXX type.
Change-Id: Ia0bf553a3943b702c921f185407e03ce93ebf0ef
Reviewed-on: https://code.wireshark.org/review/24166
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
The intention is to make it more transparent when making a switch
to an "endpoint" over address/port combination.
Change-Id: Ic424c32095ecb103bcb4f7f4079c549de2c8d9c4
Reviewed-on: https://code.wireshark.org/review/24148
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
This makes it easier to identify the simpler/common conversations
Change-Id: I7094f23e49156ee27f5f72c8e130308470f3e462
Reviewed-on: https://code.wireshark.org/review/24145
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Michael Mann <mmann78@netscape.net>
Perform sanity check on buffer length parsed from data. Check buffer
size before reading value.
Change-Id: I8beaf8860b39426d79867b0dd2221e57e32da8e0
Link: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1151
Bug: 13608
Reviewed-on: https://code.wireshark.org/review/21287
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Change from col_append_sep_fstr() to col_append_sep_str() when
appending strings without formatting.
Change-Id: I315aca9b815c204a5bc78f7326402c40d1325f0e
Reviewed-on: https://code.wireshark.org/review/20846
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Follow-up of https://code.wireshark.org/review/20095
Rewritten functions:
- crypt_des_ecb
crypt_des_ecb verified against previous crypt_des_ecb implementation with
4294967295 random keys and input buffers from /dev/random as I cannot find a
suitable pcap which uses DES
Change-Id: I21ec2572451e0ded4299ffadd8dd687817bc6318
Reviewed-on: https://code.wireshark.org/review/20429
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Change-Id: Iba6238988ded675cba328ab512232d1919d93b4a
Reviewed-on: https://code.wireshark.org/review/20415
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
The sid buffer can contain up to 255 bytes of data, so the loop counter must
be a guint16 at least.
Bug: 13453
Change-Id: I997ce1a737532d94796586d7e109d89b2dc1911b
Reviewed-on: https://code.wireshark.org/review/20388
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Removed all guards for HAVE_LIBGCRYPT, change autotools and CMake to
error out if it is not available. Update release notes, developer
documentation and README with the new status. Clarify relation with
GnuTLS in macosx-setup.sh. Install Libgcrypt via brew script.
Motivation for this change is that many dissectors depend on Libgcrypt
and having it optional increases the maintenance burden (there have been
several compile issues in the past due to the optional status).
Furthermore, wsutil has crypto code that can be replaced by Libgcrypt.
Change-Id: Idf0021b8c4cd5db70b8766f7dcc2a8b3acbf042f
Link: https://www.wireshark.org/lists/wireshark-dev/201702/msg00011.html
Reviewed-on: https://code.wireshark.org/review/20030
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Change-Id: I91bc792302f61fd8f20fa41ec067534316e26074
Reviewed-on: https://code.wireshark.org/review/19742
Reviewed-by: Michael Mann <mmann78@netscape.net>
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Dario Lombardo <lomato@gmail.com>
This function will free the resources allocated by the caller.
Change-Id: Ib486c14e4fd3c321662fb71f7fd06733ce9a64a4
Reviewed-on: https://code.wireshark.org/review/19375
Reviewed-by: Peter Wu <peter@lekensteyn.nl>
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Any call of the form tvb_new_subset_length_caplen(tvb, offset, -1, -1)
should instead be tvb_new_subset_remaining(tvb, offset).
Change-Id: I4bc95b028103ea4fc82453ef3460c147d7ccabd6
Reviewed-on: https://code.wireshark.org/review/19598
Reviewed-by: Guy Harris <guy@alum.mit.edu>
This emphasizes that there is no such thing as *the* routine to
construct a subset tvbuff; you need to choose one of
tvb_new_subset_remaining() (if you want a new tvbuff that contains
everything past a certain point in an existing tvbuff),
tvb_new_subset_length() (if you want a subset that contains everything
past a certain point, for some number of bytes, in an existing tvbuff),
and tvb_new_subset_length_caplen() (for all other cases).
Many of the calls to tvb_new_subset_length_caplen() should really be
calling one of the other routines; that's the next step. (This also
makes it easier to find the calls that need fixing.)
Change-Id: Ieb3d676d8cda535451c119487d7cd3b559221f2b
Reviewed-on: https://code.wireshark.org/review/19597
Reviewed-by: Guy Harris <guy@alum.mit.edu>
They already know who they are when they register themselves. Saving the
handle then to avoid finding it later.
Not sure if this will increase unnecessary register_dissector functions
(instead of using create_dissector_handle in proto_reg_handoff function)
when other dissectors copy/paste, but it should make startup time
a few microseconds better.
Change-Id: I3839be791b32b84887ac51a6a65fb5733e9f1f43
Reviewed-on: https://code.wireshark.org/review/19481
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
- update callback must return a boolean to indicate success / failure
- error message must be allcoated in glib memory as GUI will g_free it
Bug: 13209
Change-Id: Ibb9690034d66dae85e775d0010aadeb192c76b4a
Reviewed-on: https://code.wireshark.org/review/19111
Petri-Dish: Michael Mann <mmann78@netscape.net>
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Similar to the "tcp.port" changes in I99604f95d426ad345f4b494598d94178b886eb67,
convert dissectors that use "udp.port".
More cleanup done on dissectors that use both TCP and UDP dissector
tables, so that less preference callbacks exist.
Change-Id: If07be9b9e850c244336a7069599cd554ce312dd3
Reviewed-on: https://code.wireshark.org/review/18120
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
This patch introduces new APIs to allow dissectors to have a preference for
a (TCP) port, but the underlying data is actually part of Decode As functionality.
For now the APIs are intentionally separate from the regular APIs that register a
dissector within a dissector table. It may be possible to eventually combine the
two so that all dissectors that register with a dissector table have an opportunity
to "automatically" have a preference to adjust the "table value" through the
preferences dialog.
The tcp.port dissector table was used as the guinea pig. This will eventually be
expanded to other dissector tables as well (most notably UDP ports). Some
dissectors that "shared" a TCP/UDP port preference were also converted. It also
removed the need for some preference callback functions (mostly when the callback
function was the proto_reg_handoff function) so there is cleanup around that.
Dissectors that has a port preference whose default was 0 were switched to using
the dissector_add_for_decode_as_with_preference API rather than dissector_add_uint_with_preference
Also added comments for TCP ports used that aren't IANA registered.
Change-Id: I99604f95d426ad345f4b494598d94178b886eb67
Reviewed-on: https://code.wireshark.org/review/17724
Reviewed-by: Michael Mann <mmann78@netscape.net>
proto = -1
Change-Id: I60f899ad748b5d3e17f237552af7d2dbc8f27bd2
Reviewed-on: https://code.wireshark.org/review/17864
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Those are the only ones meaningful. Let's convert the buggy dissectors
and add an assert to avoid the misuse of the pool parameter in the future
Change-Id: I65f470b757f163f11a25cd352ffe168d1f8a86d3
Reviewed-on: https://code.wireshark.org/review/17748
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>
Have all dissector tables have a "supports Decode As" flag, which
defaults to FALSE, and which is set to TRUE if a register_decode_as()
refers to it.
When adding a dissector to a dissector table with a given key, only add
it for Decode As if the dissector table supports it.
For non-FT_STRING dissector tables, always check for multiple entries
for the same protocol with different dissectors, and report an error if
we found them.
This means there's no need for the creator of a dissector table to
specify whether duplicates of that sort should be allowed - we always do
the check when registering something for "Decode As" (in a non-FT_STRING
dissector table), and just don't bother registering anything for "Decode
As" if the dissector table doesn't support "Decode As", so there's no
check done for those dissector tables.
Change-Id: I4a1fdea3bddc2af27a65cfbca23edc99b26c0eed
Reviewed-on: https://code.wireshark.org/review/17402
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Guy Harris