Commit Graph

68 Commits

Author SHA1 Message Date
Michael Mann 14824e6adf Revert "Fixup: tvb_* -> tvb_captured"
https://www.wireshark.org/lists/wireshark-dev/201406/msg00131.html

This reverts commit 246fe2ca4c.

Change-Id: Ib24bae0198c13a84bd7f731bf4af921212109a8f
Reviewed-on: https://code.wireshark.org/review/2430
Reviewed-by: Michael Mann <mmann78@netscape.net>
2014-06-19 18:25:59 +00:00
Dario Lombardo 246fe2ca4c Fixup: tvb_* -> tvb_captured
Change-Id: I9209c1271967405c34c1b6fa43e1726a4d3a5a3f
Reviewed-on: https://code.wireshark.org/review/2377
Reviewed-by: Anders Broman <a.broman58@gmail.com>
2014-06-18 14:14:58 +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
Jakub Zawadzki c45475ab45 Fix [-Wmissing-prototypes]
svn path=/trunk/; revision=54135
2013-12-15 23:44:12 +00:00
Michael Mann 9b7fb8a811 Create the ability to have packet scoped "proto" data. Bug 9470 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9470)
I'm not sold on the name or module the proto_data functions live in, but I believe the function arguments are solid and gives us the most flexibility for the future.  And search/replace of a function name is easy enough to do.

The big driving force for getting this in sooner rather than later is the saved memory on ethernet packets (and IP packets soon), that used to have file_scope() proto data when all it needed was packet_scope() data (technically packet_info->pool scoped), strictly for Decode As.

All dissectors that use p_add_proto_data() only for Decode As functionality have been converted to using packet_scope().  All other dissectors were converted to using file_scope() which was the original scope for "proto" data.

svn path=/trunk/; revision=53520
2013-11-23 02:20:13 +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 22760b2d2a Remove pinfo->private_data from DCERPC dissectors and instead have dcerpc_info* infomation be passed in as a function parameter. Bug 9387 (https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=9387)
All "generated" source was manually modified (with the power of search/replace), but I believe the "source input" files have been adjusted (checked into revs 53098 and 53099) to reflect the necessary changes (with possible whitespace formatting differences).

The Microsoft compiler doesn't flag "unused function parameters", so I apologize in advance if I may have missed a few.  The "dcerpc_info* di" parameter is used in almost every function.

svn path=/trunk/; revision=53100
2013-11-06 14:31:29 +00:00
Evan Huus 83a7fedb55 A few more dissectors to wmem.
svn path=/trunk/; revision=51616
2013-08-31 15:47:04 +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
Anders Broman 85a8e304dd Add the posibillity to use a key for per-packet-data.
svn path=/trunk/; revision=49259
2013-05-12 18:11:02 +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 84241f46ad From beroset:
remove C++ incompatibilities 
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8416

svn path=/trunk/; revision=48399
2013-03-18 20:44:36 +00:00
Guy Harris 6b629c4d92 Move show_exception() and show_reported_bounds_error() to
epan/show_exception.c, as it's used outside
epan/dissectors/packet-frame.c.  Update their callers to include
<epan/show_exception.h> to get their declaration.

Add a CATCH_NONFATAL_ERRORS macro that catches all exceptions that, if
there's more stuff in the packet to dissect after the dissector call
that threw the exception, doesn't mean you shouldn't go ahead and
dissect that stuff.  Use it in all those cases, including ones where
BoundsError was inappropriately being caught (you want those passed up
to the top level, so that the packet is reported as having been cut
short in the capture process).

Add a CATCH_BOUNDS_ERRORS macro that catches all exceptions that
correspond to running past the end of the data for a tvbuff; use it
rather than explicitly catching those exceptions individually, and
rather than just catching all exceptions (the only place that
DissectorError should be caught, for example, is at the top level, so
dissector bugs show up in the protocol tree).

Don't catch and then immediately rethrow exceptions without doing
anything else; just let the exceptions go up to the final catcher.

Use show_exception() to report non-fatal errors, rather than doing it
yourself.
 
If a dissector is called from Lua, catch all non-fatal errors and use
show_exception() to report them rather than catching only
ReportedBoundsError and adding a proto_malformed item.

Don't catch exceptions when constructing a trailer tvbuff in
packet-ieee8023.c - just construct it after the payload has been
dissected, and let whatever exceptions that throws be handled at the top
level.

Avoid some TRY/CATCH/ENDTRY cases by using checks such as
tvb_bytes_exist() before even looking in the tvbuff.

svn path=/trunk/; revision=47924
2013-02-27 22:43:54 +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 29715ccc8f How can I get a new tvbuff that starts at an offset within a given
tvbuff and runs to the end of the tvbuff?  Let me count the ways....

Replace a bunch of different ways of doing that (some incorrect, in that
they're not properly handling tvbuffs where the captured and reported
lengths are different) with tvb_new_subset_remaining().

svn path=/trunk/; revision=47751
2013-02-19 23:17:07 +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
Jakub Zawadzki 5a8783f5b1 Initial commit to support yet another method of passing data between dissectors.
Add new parameter 'data' to heur_dissector_t and new_dissector_t, for now it's always NULL

svn path=/trunk/; revision=44860
2012-09-10 21:40:21 +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
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
Jakub Zawadzki 5020a3f170 While iterating over string characters don't use strlen(), but check for NUL.
svn path=/trunk/; revision=42883
2012-05-28 15:59:00 +00:00
Bill Meier d12d5a606c AFAICT sys/types.h & netinet/in.h #includes are not needed for these files.
(Let's see if any of the buildbots give any errors).
Also: remove trailing whitespace on lines.

svn path=/trunk/; revision=42429
2012-05-04 21:29:00 +00:00
Bill Meier 794757ae8f For proto_tree_add_item(..., proto_xxx, ...)use ENC_NA as the encoding arg.
Also: remove trailing whitespace for a number of files.

svn path=/trunk/; revision=39503
2011-10-21 02:10:19 +00:00
Stig Bjørlykke 84bc28bd6a Introduce "Fragment count" filter element for all protocols doing reassembly.
svn path=/trunk/; revision=35705
2011-01-30 21:01:07 +00:00
Jeff Morriss 33f116a46d Restore pinfo->private_data after an exception was thrown by a subdissector.
This is necessary in case a subdissector had changed it but was unable to
restore it (due to the exception).

Remove check_col().

svn path=/trunk/; revision=34436
2010-10-08 17:48:22 +00:00
Jeff Morriss 729de1a635 As suggested in http://www.wireshark.org/lists/wireshark-dev/200809/msg00075.html
(as referenced in https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2907 ) and
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3411 :

Write a new convenience routine for finding a conversation and, if it is not
found, create it.  The frame number and addresses are taken from pinfo (as is
the common case).

Use this function in a bunch of dissectors.

svn path=/trunk/; revision=32790
2010-05-13 18:28:34 +00:00
Stig Bjørlykke 539b558f8c Renamed some reassembled data texts.
Removed some check_col().

svn path=/trunk/; revision=31809
2010-02-06 18:20:21 +00:00
Stig Bjørlykke 47e732e29e Changed "reassembled_length" -> "reassembled.length".
svn path=/trunk/; revision=31776
2010-02-03 08:47:15 +00:00
Stig Bjørlykke 88b72356ad Introduce "Reassembled length" filter element for all protocols doing
reassembly.

svn path=/trunk/; revision=31767
2010-02-02 16:01:52 +00:00
Gerald Combs 8533da1c94 Don't call tvb_new_subset on a NULL pointer. Fixes bug 4101.
svn path=/trunk/; revision=31029
2009-11-19 22:41:01 +00:00
Ronnie Sahlberg 161667e6bd From Matthieu Patou,
add code to decrypt ntlmv1 and v2 traffic





svn path=/trunk/; revision=30355
2009-10-06 09:13:57 +00:00
Kovarththanan Rajaratnam 17c9803cac Sanitize epan includes
svn path=/trunk/; revision=29499
2009-08-21 20:25:24 +00:00
Kovarththanan Rajaratnam 8b515e9340 Switch a bunch of dissectors over to using tvb_new_subset_remaining()
svn path=/trunk/; revision=29446
2009-08-16 12:36:22 +00:00
Stig Bjørlykke 0437f102c3 From Kovarththanan Rajaratnam:
More FT_XXX cleanup.

svn path=/trunk/; revision=28971
2009-07-07 09:02:59 +00:00
Stig Bjørlykke b228488bc0 From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
    for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
    FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero

svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
Anders Broman c91a384702 Apply some of the patches from:
http://wiki.wireshark.org/Development/Optimization

svn path=/trunk/; revision=28356
2009-05-13 19:46:11 +00:00
Stig Bjørlykke 9a0020f2f9 From Peter (bug 2942):
Allow optimalization with -ftracer.

svn path=/trunk/; revision=26822
2008-11-22 15:55:01 +00:00
Ronnie Sahlberg b4d74f2506 from metze
fallback to spnego_krb5_wrap for RFC4121 krb5 blobs


svn path=/trunk/; revision=26295
2008-09-29 18:52:17 +00:00
Bill Meier 69336f7d96 Minor cleanup for proto_reg-handoff & etc
svn path=/trunk/; revision=26285
2008-09-27 14:02:23 +00:00
Bill Meier 33af75a599 Fix some warnings reported by gcc -Wshadow ...
svn path=/trunk/; revision=25628
2008-06-28 21:09:57 +00:00
Richard van der Hoff 1350d63c1e From Chris Maynard (bug 1852):
These packet-g*.c files all have display filter issues:

1) packet-gryphon.c: PROTOABBREV is "gryphon", but display filter fields are
prefixed with only "gryph".

2) packet-gmrp.c: PROTOABBREV is "gmrp", but display filter fields are prefixed
with "garp".

3) packet-gssapi.c: PROTOABBREV is "gss-api", but display filter fields are
prefixed with "gssapi".

4) packet-gvrp.c: PROTOABBREV is "gvrp", but display filter fields are prefixed
with "garp", most of which conflict with packet-gmrp.c's display filter fields.




svn path=/trunk/; revision=24058
2008-01-10 16:35:54 +00:00
Jörg Mayer b312e64f6a get_ber_length doesn't need the tree argument, get rid of it.
Rebuild asn1 dissectors.

svn path=/trunk/; revision=22627
2007-08-24 07:12:04 +00:00
Anders Broman f08cd1e5e3 actx in the rest of dissect_ber..()l
svn path=/trunk/; revision=21773
2007-05-15 05:49:43 +00:00
Stephen Fisher f002ac6db5 Fix various warnings
Move packet-cops.c out of clean dissectors due to a #define conflict
in the headers of net-snmp with our config.h


svn path=/trunk/; revision=21398
2007-04-13 00:50:23 +00:00
Stephen Fisher ab8f589336 Fix about 100 simple to fix warnings from gcc 4.0 in epan/dissectors
svn path=/trunk/; revision=21233
2007-03-27 22:50:11 +00:00
Ronnie Sahlberg 2aaabbba43 check for whether the blob starts with "NTLMSSP" before any other check if it is not BED/DER encoded and call tha appropriate subdissector if so.
this fixes some issues with some really ancient cifs implementations where the previous tests and statemanagement would cause it to fail othervise.



svn path=/trunk/; revision=20136
2006-12-14 10:11:40 +00:00
Ronnie Sahlberg e3c9fab51c add primitive reassembly of gssapi
this will allow reassembly of gssapi blobs that span multiple smb/sessionsetup command pdus



svn path=/trunk/; revision=19119
2006-09-02 11:46:15 +00:00
Ronnie Sahlberg 8e830b8ef4 break out the handling of conversation specific data so that we will always have one such struct (and not an value pointer to an oid struct)
so that it is easier to attach other useage to the conversation specific state



svn path=/trunk/; revision=19113
2006-09-02 02:03:26 +00:00
Ronnie Sahlberg 62780fec5a resolve the oid to a variable before we check it in the conditional so that
we can add code to check that it looks sane (for better heuristics) when
we start adding GSS-KRB reassembly.

we need this for some transports such as SMB/SessionSetup that will transport GSS-KRB blobs inside multiple PDUs (multiple different SMB/SessionSetups) so we can reassemble the blobs before decoding them.


this probably only happens for SMB/SessionSetup   but the design of that command is so "nice" that you can not tell whether the blob is fragmented or not or how big it is supposed to be by looking at the SMB layer itself, one needs to know the BER length field for the BER APPLICATION tag. :-(

to make things worse, the only way match multiple such fragments together one will need not just the fragments from the SessionSetup requests  but also the UID that is returned in the response to the initial request.
perverse design.


lets assume that there will almost never be multiple sessionsetups on the same tcp session in real traces    so to make things easier just ignore the UID for now when reassembling. (well reassembly is not added yet but will be)




svn path=/trunk/; revision=19112
2006-09-02 00:43:19 +00:00
Ronnie Sahlberg 000182e09b remove a comment with dead code
remove three pointless volatile declarations


svn path=/trunk/; revision=19111
2006-09-02 00:24:31 +00:00