Commit Graph

355 Commits

Author SHA1 Message Date
Evan Huus ec5ba0795a Tweak ber_choice flow control.
There appear to be a couple of bugs in the flow control of this function (which
is very confusing), at least one of which is leading to a buffer overrun. See
the bug comments for more details and guesses of what the correct thing to do
is.

Bug:9579
Change-Id: Ibd3077792c7689a715ea53e8bf8c7a561c67389f
Reviewed-on: https://code.wireshark.org/review/1530
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Reviewed-by: Evan Huus <eapache@gmail.com>
2014-05-06 20:32:07 +00:00
Stig Bjørlykke 79b401b7f4 Remove all old BER functions.
This should complete the transition to the "New" type.

Change-Id: I882b088206c6e6d0592159451c943caeaf5b90ec
Reviewed-on: https://code.wireshark.org/review/1202
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2014-04-18 21:44:28 +00:00
Guy Harris 8c7fae2da2 Absolute and relative OIDs have different FT_ values.
This squelches some run-time dissector asserts.

Change-Id: I0ce33c4eb6e9c3bd371e47363a981e9a7a0dc789
Reviewed-on: https://code.wireshark.org/review/997
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-04-07 23:24:54 +00:00
Guy Harris 26f46d40e9 Handle string types with somewhat appropriate encodings.
For various string types defined in X.680, use the appropriate encoding,
or ENC_ASCII|ENC_NA in some cases where we don't have an appropriate
encoding yet.

This most significantly fixes the handling of BMPString and
UniversalString, which are supersets of ASCII (Unicode Basic
Multilingual Plane and Unicode, respectively), but don't encode ASCII
characters as single octets.  It also fixes UTF8String to, well,
properly recognize UTF-8.

This also lets us get rid of the special handling of SyntaxBMPString in
X.509sat (and, in fact, *requires* us to get rid of it, as, otherwise,
the string value appears twice).

Change-Id: I325c4e71a6110278eb23b86e0d986e6439cfc328
Reviewed-on: https://code.wireshark.org/review/994
Reviewed-by: Guy Harris <guy@alum.mit.edu>
2014-04-07 22:46:30 +00:00
Alexis La Goutte 296591399f Remove all $Id$ from top of file
(Using sed : sed -i '/^ \* \$Id\$/,+1 d')

Fix manually some typo (in export_object_dicom.c and crc16-plain.c)

Change-Id: I4c1ae68d1c4afeace8cb195b53c715cf9e1227a8
Reviewed-on: https://code.wireshark.org/review/497
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2014-03-04 14:27:33 +00:00
Gilbert Ramirez 4cc694839d Fix all -fstrict-alias warnings found by gcc 4.1.2
The majority of the fixes are for calls to uat_new(). Instead of
having each caller cast its private data to (void**), we use void*
in the uat_new() API itself. Inside uat_new(), we cast the void*
to void**.

Some dissectors use val64_string arrays, so a VALS64() macro was
added for those, to avoid using VALS(), which is useful only for
value_string arrays.

packet-mq.c was changed because dissect_nt_sid() requires
a char**, not a guint**. All other callers of dissect_nt_sid() use
char*'s (and take the address of it) for their local storage. So,
this was changed to follow the other practices.

A confusion between gint and absolute_time_display_e in packet-time.c
was cleared up.

The ugliest fix is the addition of ip6_guint8_to_str(), for exactly
one caller. The caller uses one type of ip6 address byte array,
while ip6_to_str() expects another. This new function is in place
until the various address implementations can be consolidated.

Add VALS64() to the developer documentation.

Change-Id: If93ff5c6c8c7cc3c9510d7fb78fa9108e4552805
Reviewed-on: https://code.wireshark.org/review/48
Reviewed-by: Evan Huus <eapache@gmail.com>
Reviewed-by: Stig Bjørlykke <stig@bjorlykke.org>
Reviewed-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
Tested-by: Alexis La Goutte <alexis.lagoutte@gmail.com>
2014-02-03 09:26:10 +00:00
Evan Huus 2338fdea0f Add missing cast.
svn path=/trunk/; revision=54980
2014-01-27 13:12:59 +00:00
Stig Bjørlykke 3abb51aa67 Do not handle BER bitstring as ASCII string, because this will fail
when the first bit is set.

svn path=/trunk/; revision=54977
2014-01-27 09:57:24 +00:00
Jakub Zawadzki deb2b236f2 Add missing includes
svn path=/trunk/; revision=54332
2013-12-21 17:23:17 +00:00
Evan Huus a6415ece0a Rename a couple of to_str functions to have ep_ in the name. This makes it
obvious that the returned string is ephemeral, and opens up the original names
in the API for versions that take a wmem pool (and thus can work in any scope).

svn path=/trunk/; revision=54249
2013-12-19 15:49:09 +00:00
Gerald Combs 17a67c3b5c Get the "Decode As" dialog working, albeit with a few warts. It differs
from the GTK flavor in two major ways:

- The "Decode As" and "User Specified Decodes" dialog have been unified.
- You can modify the decode as behavior at any time, not just when you
  have a packet selected.

Revert part of 53498 so that we can move items marked

/*** THE FOLLOWING SHOULD NOT BE USED BY ANY DISSECTORS!!! ***/

from epan/decode_as.h to ui/decode_as_utils.h. 

Move "save" code from decode_as_dlg.c to decode_as_utils.c as well.

In packet-dcerpc.c don't register a table named "ethertype". We might
want to add checks for duplicate table names.

To do:
- Add support for ranges?
- Either add support for DCERPC or make DCERPC use a regular dissector
  table.
- Fix string selectors (i.e. BER).


svn path=/trunk/; revision=53910
2013-12-10 19:23:26 +00:00
Anders Broman 304eba4d95 Mark parameter as unused
packet-ber.c:391: warning: unused parameter 'table_name'

svn path=/trunk/; revision=53447
2013-11-20 19:52:21 +00:00
Michael Mann 76ab93ea94 Provide "Decode As" functionality through dissectors themselves instead of the GUI. Bug 9450 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9450)
The basic idea behind this design is to have dissectors register with a "decode as list" with their name and dissector table.  When "Decode As" dialog is launched, any "registered" dissector found in the packet will cause a tab to be created in the dialog.

This patch includes just the dissector portion of the functionality (minus packet-dcerpc.[ch] because it has hooks to the current GUI)

svn path=/trunk/; revision=53445
2013-11-20 19:17:08 +00:00
Jakub Zawadzki ae59b09443 Add missing includes in order to remove exceptions.h from proto.h (next commit).
svn path=/trunk/; revision=53230
2013-11-10 15:59:37 +00:00
Michael Mann 02a8391535 Require dissector_try_string to pass a data parameter to its subdissectors. There weren't that many calls, so might as well modify the function than create a need for dissector_try_string_new.
svn path=/trunk/; revision=53049
2013-11-02 15:52:25 +00:00
Michael Mann c0fcebb07a Add a data parameter to call_ber_oid_callback to be able to pass data to subdissectors found with dissector_try_string_new.
The intention is to aid in the removal of pinfo->private_data use as well as static global variables in a dissector.  For now, all calls to call_ber_oid_callback have the data parameter set to NULL.

svn path=/trunk/; revision=52994
2013-10-31 00:57:03 +00:00
Bill Meier 9874da2fcb #if 0 numerous "unused const variables" (mostly value-string-arrays);
Also; fix a few "set but not used" warnings.

svn path=/trunk/; revision=52780
2013-10-23 06:29:11 +00:00
Bill Meier 2ac134b3c5 whitespace fixes; mostly: remove trailing blanks
svn path=/trunk/; revision=52591
2013-10-13 19:56:52 +00:00
Pascal Quantin 16333c062d From Ed Beroset via https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9192 :
Cleanup of relative and absolute OID decoding in packet-ber.c

svn path=/trunk/; revision=52420
2013-10-06 20:59:05 +00:00
Michael Mann ee208c8dcc Add support for RELATIVE-OID ASN.1 type. Bug 9192 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9192)
From Ed Beroset.

svn path=/trunk/; revision=52393
2013-10-06 02:31:10 +00:00
Michael Mann cf80442912 Convert some proto_tree_add_string_format calls to something more appropriate.
There seem to be several cases of proto_tree_add_string_format where a "string" value/filter doesn't really make sense because it's always empty, and is just being used as a "filterable subtree header (placeholder)".  They appear to be more for "presense" than "value" and should probably be FT_NONE, although I'd almost argue for removing the filter in favor of  proto_tree_add_text.

svn path=/trunk/; revision=52296
2013-09-30 15:21:09 +00:00
Pascal Quantin a0c53ffaa1 emem -> wmem conversion:
- ep_tvb_get_bits() -> wmem_packet_tvb_get_bits()
- tvb_g_memdup()/ep_tvb_memdup() -> tvb_memdup()
- tvb_fake_unicode()/tvb_get_ephemeral_faked_unicode() -> tvb_get_faked_unicode()
- tvb_get_g_string()/tvb_get_ephemeral_string()/tvb_get_seasonal_string() -> tvb_get_string()
- tvb_get_g_unicode_string()/tvb_get_ephemeral_unicode_string() -> tvb_get_unicode_string()
- tvb_get_ephemeral_string_enc() -> tvb_get_string_enc()
- update docs accordingly

svn path=/trunk/; revision=52172
2013-09-22 15:50:55 +00:00
Anders Broman f3e76b0953 Indicate Sequence of 0 length.
svn path=/trunk/; revision=52155
2013-09-20 14:20:06 +00:00
Pascal Quantin 6cedc2c336 Convert a few more dissectors to wmem
svn path=/trunk/; revision=51991
2013-09-12 22:03:31 +00:00
Michael Mann 9e3f9b449f expert_add_info_format_text -> expert_add_info_format
svn path=/trunk/; revision=51852
2013-09-09 00:44:09 +00:00
Jakub Zawadzki f4bcbeb9f2 Keep result of [new_]register_dissector in some dissectors. [2 of x]
(don't create new dissector handle if we can use already existing one)

svn path=/trunk/; revision=51159
2013-08-05 19:09:44 +00:00
Jakub Zawadzki a18172147f Remove fragment_data, add fragment_head, fragment_item - for now alias it to the same structure.
This is begin of work to split fragment head and fragments items.

svn path=/trunk/; revision=50708
2013-07-17 21:12:24 +00:00
Jakub Zawadzki c766e78cfa Rewrite reassemble API to use TVBs instead of raw data.
(it seems to be working for TCP ^^)

svn path=/trunk/; revision=50580
2013-07-14 14:42:05 +00:00
Michael Mann a6acb73611 Make expert items filterable. First use of proto_tree_add_expert.
svn path=/trunk/; revision=50327
2013-07-02 21:16:10 +00:00
Pascal Quantin de10bc6b5e Fix https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8799 :
Display certificate as UINT64 and add support for a 64bits unsigned value in BER dissector

svn path=/trunk/; revision=50096
2013-06-20 23:37:16 +00:00
Jeff Morriss a7bb5e1835 Rework the change from r15595 a bit: when creating a TVB subset, always give
the same captured and reported lengths so that we don't end up throwing
BoundsErrors ("Packet size limited during capture") when the packet is simply
malformed.

This fixes one of the issues reported in https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8816

svn path=/trunk/; revision=50055
2013-06-19 19:31:40 +00:00
Evan Huus 0844929247 Follow-up to r49055 as noted on
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7359

The BER integer dissection routines take an hf_id, but that can be -1.
Only fetch the type (to check signedness) if hf_id >= 0, as otherwise this
causes a dissector bug. Default to signed if given no hf_id - I don't know
whether this should be unsigned or not, but the old behaviour was that
everything was signed so it's not a regression at least.

svn path=/trunk/; revision=49101
2013-04-30 23:19:47 +00:00
Evan Huus 5b8a3df249 From me: only sign-extend BER integers if the field is actually signed
From Guy: override two fields in the GOOSE ASN.1 dissector to be unsigned

Together these fix
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8250


svn path=/trunk/; revision=49055
2013-04-26 19:23:36 +00:00
Evan Huus cb387ad2de Initialize branch_taken right at the top of dissect_ber_choice so that the
caller can depend on it being initialized even in peculiar error conditions.

Fixes the other half of https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8599

svn path=/trunk/; revision=48944
2013-04-20 21:20:00 +00:00
Guy Harris a2414d8909 Don't wire into the reassembly code the notion that reassemblies should
be done on flows from one address to another; reassembly for protocols
running atop TCP should be done on flows from one TCP endpoint to
another.

We do this by:

	adding "reassembly table" as a data structure;

	associating hash tables for both in-progress reassemblies and
	completed reassemblies with that data structure (currently, not
	all reassemblies use the latter; they might keep completed
	reassemblies in the first table);

	having functions to create and destroy keys in that table;

	offering standard routines for doing address-based and
	address-and-port-based flow processing, so that dissectors not
	needing their own specialized flow processing can just use them.

This fixes some mis-reassemblies of NIS YPSERV YPALL responses (where
the second YPALL response is processed as if it were a continuation of
a previous response between different endpoints, even though said
response is already reassembled), and also allows the DCE RPC-specific
stuff to be moved out of epan/reassembly.c into the DCE RPC dissector.

svn path=/trunk/; revision=48491
2013-03-22 23:59:54 +00:00
Anders Broman 81e80f2c0b From beroset:
remove C++ incompatibilities 
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8416

svn path=/trunk/; revision=48355
2013-03-17 16:48:47 +00:00
Anders Broman 54eb4a6cec [-Wmissing-prototypes]
Use explicit casts.

svn path=/trunk/; revision=48319
2013-03-15 16:39:30 +00:00
Bill Meier 96a24cc79f Fix spelling/typos found using a list of commonly misspelled words.
The misspellings were mostly in comments but some were
in text strings visible to the user.


svn path=/trunk/; revision=47899
2013-02-26 04:42:26 +00:00
Bill Meier 1823aa007c it's ==> its & its ==> it's as needed.
svn path=/trunk/; revision=47891
2013-02-26 01:06:19 +00:00
Guy Harris e2b61c828f Constify some character pointer variables to avoid warnings about
strings being assigned to them.

svn path=/trunk/; revision=46653
2012-12-21 05:34:38 +00:00
Bill Meier f498c3a172 Reformat for readability:
indentation, whitespace, long-lines, etc.
Also;
- replace two usages of fprintf(stderr,...) by g_warning();
- revert incorrect replacement of FALSE by ENC_BIG_ENDIAN
  done a while back (2 cases);
  [The incorrect use of ENC_BIG_ENDIAN was benign since
   ENC_BIG_ENDIAN is currently defined ad 0x0000000]

svn path=/trunk/; revision=45625
2012-10-18 02:33:11 +00:00
Jeff Morriss 2552c750e5 We always HAVE_CONFIG_H so don't bother checking whether we have it or not.
svn path=/trunk/; revision=45017
2012-09-20 02:03:38 +00:00
Jeff Morriss aa5d9d78dd From Robert Bullen via https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7683 :
The reassembled fragments tree in the Packet Details view is awesome, but it
lacks one thing: a field that exposes the reassembled data.

tcp.data already exists for exposing a single TCP segment's payload as a byte
array. It would be handy to have something similar for a single application
layer PDU when TCP segment reassembly is involved. I propose
tcp.reassembled.data, named and placed after the already existing field
tcp.reassembled.length.

My primary use case for this feature is outputting tcp.reassembled.data with
tshark for further processing with a script.

The attached patch implements this very feature. Because the reassembled
fragment tree code is general purpose, i.e. not specific to just TCP, any
dissector that relies upon it can add a similar field very cheaply. In that
vein I've also implemented ip.reassembled.data and ipv6.reassembled.data, which
expose reassembled fragment data as a single byte stream for IPv4 and IPv6,
respectively. All other protocols that use the reassembly code have been left
alone, other than inserting NULL into their initializer lists for the newly
introduced struct field reassemble.h:fragment_items.hf_reassembled_data.

svn path=/trunk/; revision=44802
2012-09-07 02:09:59 +00:00
Michael Mann 5dd7371960 more ephemeral memory cleanup
svn path=/trunk/; revision=44496
2012-08-14 17:58:41 +00:00
Bill Meier 638d74d43f Use val_to_str_const() where appropriate;
Also (for a few files):
- create/use some extended value strings;
- remove unneeded #include files;
- remove unneeded variable initialization;
- re-order fcns slightly so prefs_reg_handoff...() at end, etc

svn path=/trunk/; revision=44438
2012-08-10 22:55:02 +00:00
Guy Harris 659cf0527a UATs could be put into "categories". The categories were defined only
implicitly by the #define name and string they were defined to; not all
UATs neatly fit into any of the categories, so some of them were put
into categories that weren't obviously correct for them, and one - the
display filter macro UAT - wasn't put into any category at all (which
caused crashes when editing them, as the GUI code that handled UAT
changes from a dialog assumed the category field was non-null).

The category was, in practice, used only to decide, in the
aforementioned GUI code, whether the packet summary pane needed to be
updated or not.  It also offered no option of "don't update the packet
summary pane *and* don't redissect anything", which is what would be
appropriate for the display filter macro UAT.

Replace the category with a set of fields indicating what the UAT
affects; we currently offer "dissection", which applies to most UATs
(any UAT in libwireshark presumably affects dissection at a minimum) and
"the set of named fields that exist".  Changing any UAT that affects
dissection requires a redissection; changing any UAT that affects the
set of named fields that exist requires a redissection *and* rebuilding
the packet summary pane.

Perhaps we also need "filtering", so that if you change a display filter
macro, we re-filter, in case the display is currently filtered with a
display filter that uses a macro that changed.

svn path=/trunk/; revision=43603
2012-07-08 01:00:46 +00:00
Jakub Zawadzki bf81b42e1e Update Free Software Foundation address.
(COPYING will be updated in next commit)

svn path=/trunk/; revision=43536
2012-06-28 22:56:06 +00:00
Anders Broman cec562ddd2 From Alex Lindberg: Add preference to packet-ber.c to toggle BER warning on leading zero bits. https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7328
svn path=/trunk/; revision=43098
2012-06-05 05:16:06 +00:00
pascal 8f557d0874 Attempt to fix clang warnings (dead assignment, dereference of null pointer, branch condition evaluates to a garbage value)
svn path=/trunk/; revision=42392
2012-05-02 21:55:59 +00:00
Bill Meier 159901cd15 Use consistent indentation;
Use #if 0/#endif to comment out some code (rather than /* ... */

svn path=/trunk/; revision=42212
2012-04-23 17:43:56 +00:00