pointer to a "struct dissector_table", containing a pointer to a hash
table and a pointer to a list of handles. Fix
"dissector_all_tables_foreach_func()" to understand that.
svn path=/trunk/; revision=4312
dissector table contain both a hash table, to use to look up port
numbers to find a dissector, and a list of all dissectors that *could*
be assigned to ports in that hash table, to be used by user interface
code.
Make the "Decode As" dialog box code use that.
Also make it *not* let you choose whether to set the dissector for both
the UDP and TCP versions of a port; some protocols run only atop TCP,
some run only atop UDP, and even those that can run atop both may have
different dissector handles to use over TCP and UDP, so handling a
single merged list would be a mess. (If the user is setting the
dissector for a TCP port, only those protocols that Ethereal can handle
over TCP should be listed; if the user is setting the dissector for a
UDP port, only those protocols that Ethereal can handle over TCP should
be listed; if the user is setting a dissector for both, only those
protocols that Ethereal can handle over *both* TCP *and* UDP should be
listed, *and* there needs to be a way to let the "Decode As" code get
both the TCP handle *and* the UDP handle and use the right ones. If
somebody really wants that, they need to implement all of the above if
they want the code to be correct.)
Fix the code that handles setting the dissection for the IP protocol
number to correctly update the lists of protocols being dissected as TCP
and as UDP; the code before this change wasn't updating the single such
list to add new protocols.
svn path=/trunk/; revision=4311
if found, return the dissector handle for that port.
Use that routine in the X.25 dissector; revert to attaching a dissector
handle to an X.25 virtual circuit.
svn path=/trunk/; revision=4310
take a dissector handle as an argument, rather than a pointer to a
dissector function and a protocol ID. Associate dissector handles with
dissector table entries.
svn path=/trunk/; revision=4308
rather than a function pointer, "dissect_wtp_fromudp()" no longer needs
to be global; make it static, register it by name, and have the WSP
dissector get the handle by calling "find_dissector()" rather than by
constructing its own handle for it.
Fix up some attributions.
svn path=/trunk/; revision=4306
Adds an "Add Expression..." button to the color filter
creation dialog.
Improve the look of the "Add color to protocols" window.
Clean up some ugly code.
Give John credit in the AUTHORS file for the coloring stuff.
svn path=/trunk/; revision=4301
identifier, but means X.29 when used as an X.263/ISO 9577 secondary
protocol identifier.
Add support for the IPv6 NLPID, and Ethernet type, in more places.
Fix up the handling of the user data of a CALL REQUEST packet to more
correctly distinguish between user data containing an NLPID and user
data containing an X.264/ISO 11570 UN TPDU. If it's an NLPID, use
"nlpid_vals" to show its value.
Put that user data in a subtree.
Create a new "x.25.spi" dissector table, for protocols running atop
X.25, rather than having a built-in switch statement, so that other
protocols can register themselves by NLPID.
svn path=/trunk/; revision=4300
Rename WTAP_ENCAP_PRISM to WTAP_ENCAP_PRISM_HEADER, to match
DLT_PRISM_HEADER.
Add in missing capture support for WTAP_ENCAP_PRISM_HEADER when
capturing with "pcap_open_live()" rather than reading the capture from a
pipe.
svn path=/trunk/; revision=4299
1. Changes how can_desegment works so that can_desegment is
only != 0 for whichever dissector is running immediately on
top of whoever offers the can_desegment service.
Thus DCERPC needs no special handling to see if it can trust
can_desegment (which is currently only available ontop of TCP
and not ontop of tcp->nbss->smb).
2. Changes fragment reassembly of transaction smb to only show
the defragmented packet for the transaction smb holding the
first fragment.
To see why, test it with a transaction SMB containing a ~60kb
PDU or larger. The old behaviour had approximately quadratic
behaviour regarding runtime for dissecting such PDUs.
(example: NetShareEnum is a command which can grow really really
large if the number of shares and comments are large)
svn path=/trunk/; revision=4296
"smb_saved_info_t" in the table of requests whose replies have been
found, don't look it up in the table of requests whose replies have not
been found - if the request in question has no reply in the capture,
that may find some later frame in the same conversation with the same
MID, and we don't need that information anyway - the only reason we
*need* that structure is to save information in it for use when
processing its reply, and we already did that the first time we
processed the request. (The information for the later frame may be bad,
e.g. having a null "extra_info" pointer, or having one that points to
information for another request.)
Arrange that we don't use the pointer to the "smb_saved_info_t" when
processing a request except to save information if the request hasn't
already been processed, as that pointer may not be valid if the request
has already been processed, as per the above.
svn path=/trunk/; revision=4292
Add some checks for null tvbuff arguments.
When dissecting transaction setup, parameters, and data when we couldn't
dissect it as a pipe or mailslot transaction, use the reported length of
the supplied tvbuff, not the actual length, as the amount of data
present.
svn path=/trunk/; revision=4291
indicate that it's to be used for SMB transactions; a different table,
using different dissectors, would be needed for, say, reads and writes
over a named pipe, as those are byte streams and SMB transactions are
packets, so the dissectors for the first one need to worry about
multiple PDUs per segment and desegmentation, while the dissectors for
the second one don't - and, in fact, can't do desegmentation stuff.
svn path=/trunk/; revision=4286
o Modifies the dcerpc handoff to subdissectors slightly. It
also needs to pass the data representation to the
subdissector. Also, if no subdissector is found, it puts a
"Stub data" entry in the tree.
o Adds optional TCP desegmentation to the dcerpc layer. Note
that dcerpc has it's own ability to fragment PDUs. This isn't
for dealing with that, but with the case of a single PDU being
broken over more than one TCP segment.
o Adds a little bit of dissection to packet-dcerpc-epm.c.
Mainly just proof of concept for the dcerpc handoff stuff.
(Writing this is how I realized the need for the drep.)
o Adds packet-dcerpc-ndr.c, which will contain NDR dissection
routines for use by subdissectors.
Also, support added for multiple PDUs per segment for DCERPC-over-TCP
(and, potentially, other byte-stream transports).
svn path=/trunk/; revision=4285
than a pointer to a dissector function, as an argument.
This means that the conversation dissector is called through
"call_dissector()", so the dissector itself doesn't have to worry about
checking whether the protocol is enabled or setting
"pinfo->current_proto", so get rid of the code that does that in
conversation dissectors. Also, make the conversation dissectors static.
Get rid of some direct calls to dissectors; replace them with calls
through handles, and, again, get rid of code to check whether a protocol
is enabled and set "pinfo->current_proto" where that code isn't needed.
Make those dissectors static if they aren't already static.
Add a routine "create_dissector_handle()" to create a dissector handle
without registering it by name, if the dissector isn't used outside the
module in which it's defined.
svn path=/trunk/; revision=4281
don't have the frame number of the request, which we use as the ID of
the transaction being reassembled. (If we're reassembling a reply,
should we not use the frame number of the reply instead? We used to
have a hash table to keep track of that, so we might just be able to
bring it back....)
svn path=/trunk/; revision=4274
from being required by anyone other than packet-data.c.
It can now be accessed with call_dissector() with the name "data".
dissect_data is now also of dissect_t.
svn path=/trunk/; revision=4271
Guy Harris