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.
As requested [here][1], help with replacing calls to
`wmem_packet_scope()` with references to `pinfo->pool`.
My principles were:
* Plugins chosen semi-randomly.
* When a calling function already has a `pinfo` argument, just use that.
* Remove `_U_` from its signature if it was there.
* Don't go more than 2 or 3 levels deep of changing signatures.
* If a function is clearly allocing memory to return, change the
function signature to take a `wmem_allocator_t *`. Otherwise, either
that or take a `packet_info *` as seems to make sense.
* No mention of `wmem_packet_scope()` should remain in the files I've
touched.
* I didn't always succeed at this, but I made a dent.
[1]: https://www.wireshark.org/lists/wireshark-dev/202107/msg00052.html
GCC 11.1.0.
./epan/dissectors/packet-dcerpc-netlogon.c: In function ‘dissect_secchan_verf’:
../epan/dissectors/packet-dcerpc-netlogon.c:8162:13: error: ‘digest’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
8162 | guint64 digest;
| ^~~~~~
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>
We try to dissect the NTLMv2 blob and
verify the nthash against our keytab.
Change-Id: Ia33e91bcd89f72e7468f61756f0eafe9df92356d
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/36406
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
get_md4pass_list() is always available, it just returns 0
if HAVE_KERBEROS is not available.
Change-Id: I7fd8613b48c5b02f8693fa6ee15f5f38ed10643e
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/36447
Petri-Dish: Stig Bjørlykke <stig@bjorlykke.org>
Tested-by: Petri Dish Buildbot
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
It's good to see where the session key for decryption was learned.
Change-Id: I2c18c6367eb60796744a3a4d4330244493c29688
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/36405
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
It's useful to see which keys where used, if we have a keytab to
verify things!
Change-Id: I77d887cd28b8ebe57c6c897797b0ab320a390699
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/36404
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
By passing a real int version to
netlogon_dissect_netrserverauthenticate023_reply() it can also
handle NetrServerAuthenticate instead of only
NetrServerAuthenticate2 and NetrServerAuthenticate3.
Change-Id: Icb3aa3aee52a844b3c34c4bce8b7b3a65f0bdae7
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/36403
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Change-Id: Ide0dd6464a72640c03ad00a9a5a00c5f73d13299
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/36402
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Change-Id: I1d14ffe928e1b303eee7e95a45a9617ffcfb151b
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/35707
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
This is a change into the correct direction and allows decryption
even if DCERPC security context multiplexing is not used.
The final design is added as comment, which would make it possible
to do decryption in all cases allowed by the protocol.
Change-Id: Ided40e0028967f2a047bf2722e627800ca77054d
Reviewed-on: https://code.wireshark.org/review/35680
Petri-Dish: Anders Broman <a.broman58@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
This won't be needed for NETLOGON_FLAG_AES.
Change-Id: I668bca15ed13e5a2767fa3e39c5cad0d510a8f5d
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/35592
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
See [MS-NRPC] 3.1.4.2 Netlogon Negotiable Options, it's
flag W: Supports Advanced Encryption Standard (AES) encryption (128 bit in
8-bit CFB mode) and SHA2 hashing ...
Change-Id: I4b677e1ca1c3b3b9bc47ccc412380cc18659fd5d
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-on: https://code.wireshark.org/review/35589
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Petri-Dish: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Anders Broman <a.broman58@gmail.com>
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>
Use copy_address_swallow() instead of copy_address().
When inserting the key in the hash map, copy it in wmem file scope.
Bug: 14407
Change-Id: Ida524d314c943f480dd0e1bf44fd0ded01aafaeb
Reviewed-on: https://code.wireshark.org/review/25731
Petri-Dish: Pascal Quantin <pascal.quantin@gmail.com>
Tested-by: Petri Dish Buildbot
Reviewed-by: Pascal Quantin <pascal.quantin@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>
Many of the register_init_routine/register_cleanup_routine functions
are for initializing and cleaning up a GHashtable.
wmem_map_new_autoreset can do that automatically, so convert many
of the simple cases.
Change-Id: I93e1f435845fd5a5e5286487e9f0092fae052f3e
Reviewed-on: https://code.wireshark.org/review/19912
Petri-Dish: Michael Mann <mmann78@netscape.net>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Dario Lombardo <lomato@gmail.com>
Tested-by: Dario Lombardo <lomato@gmail.com>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Also update tfshark to use that code.
Change-Id: Ic03fb8ff48c8bfc460298d180b436e53f0076cbe
Reviewed-on: https://code.wireshark.org/review/18588
Petri-Dish: Guy Harris <guy@alum.mit.edu>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Guy Harris <guy@alum.mit.edu>
Change-Id: I0e845668a1b9dbec93ea920a8585ecfe60f001d1
Reviewed-on: https://code.wireshark.org/review/15044
Reviewed-by: Michael Mann <mmann78@netscape.net>
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>
Add tables for heuristic dissectors, and add dissectors for the stuff
Microsoft puts there for RDP; they're violating the COTP spec, but I
guess they're stuck because they're using TP0, which doesn't support
user data.
While we're at it, add variants of proto_tree_add_bitmask() and
proto_tree_add_bitmask_flags() that return the bitmask, for use by
callers.
A side-effect of the change is that the proto_tree_add_bitmask routines
no longer treat the encoding as a Boolean, so we have to pass
ENC_LITTLE_ENDIAN or ENC_BIG_ENDIAN, not just some non-zero or zero
value. Do so.
Rename ositp_decode_CC() to ositp_decode_CR_CC(), to note that it
decodes both CR and CC PDUs.
Bug: 2626
Change-Id: If5fa2a6dfecd9eb99c1cb8104f2ebceccf1e57c2
Reviewed-on: https://code.wireshark.org/review/13648
Reviewed-by: Guy Harris <guy@alum.mit.edu>
That removes most of the uses of the frame number field in the
frame_data structure.
Change-Id: Ie22e4533e87f8360d7c0a61ca6ffb796cc233f22
Reviewed-on: https://code.wireshark.org/review/13509
Reviewed-by: Guy Harris <guy@alum.mit.edu>
We actually have to *use* the return value of the method, which the macro did
for us.
Change-Id: I240ca7e526a18054fe39c6c4ded902998dc2fef0
Reviewed-on: https://code.wireshark.org/review/12389
Petri-Dish: Evan Huus <eapache@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Reviewed-by: Jim Young <jim.young.ws@gmail.com>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Evan Huus <eapache@gmail.com>
Replace remaining calls to SET_ADDRESS, CMP_ADDRESS, ADDRESSES_EQUAL,
COPY_ADDRESS, and COPY_ADDRESS_SHALLOW with their lower-case
equivalents.
Replace all ADD_ADDRESS_TO_HASH calls with add_address_to_hash.
Change-Id: I4cff857d7a84085abe0bccd52d2605d2a468bf6f
Reviewed-on: https://code.wireshark.org/review/11229
Reviewed-by: Gerald Combs <gerald@wireshark.org>
Petri-Dish: Gerald Combs <gerald@wireshark.org>
Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
Reviewed-by: Michael Mann <mmann78@netscape.net>
Replace CMP_ADDRESS, COPY_ADDRESS, et al with their lower-case
equivalents in the asn1 and epan directories.
Change-Id: I4043b0931d4353d60cffbd829e30269eb8d08cf4
Reviewed-on: https://code.wireshark.org/review/11200
Petri-Dish: Michal Labedzki <michal.labedzki@tieto.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>
This patch moves g_hash_table_destroy calls from the init routine to
the cleanup routine. Besides that, the conditional check for the hash
table has been removed, assuming that init is always paired with a
cleanup call.
If reassembly_table_init is found, a reassembly_table_destroy call is
prepended to the cleanup function as well.
Comments have been removed from the init function as well as these did
not seem to have additional value ("destroy hash table" is clear from
the context).
The changes were automatically generated using
https://git.lekensteyn.nl/peter/wireshark-notes/diff/one-off/cleanup-rewrite.py?id=4d11f07180d9c115eb14bd860e9a47d82d3d1dcd
Manually edited files (for assignment auditing): dvbci, ositp, sccp,
tcp.
Other files that needed special attention due to the use of
register_postseq_cleanup_routine:
- ipx: keep call, do not add another cleanup routine.
- ncp: remove empty mncp_postseq_cleanup. mncp_hash_lookup is used
even if a frame is visited before (see dissect_ncp_common), hence
the hash table cannot be destroyed here. Do it in cleanup instead.
- ndps: add cleanup routine to kill reassembly table, but do not
destroy the hash table as it is already done in ndps_postseq_cleanup.
Change-Id: I95a72b3df2978b2c13fefff6bd6821442193d0ed
Reviewed-on: https://code.wireshark.org/review/9223
Reviewed-by: Michael Mann <mmann78@netscape.net>
Martin Mathieson