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path: root/epan/conversation.c
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2005-08-13start converting gmemchunk into se_alloc() in /epanRonnie Sahlberg1-32/+5
svn path=/trunk/; revision=15329
2005-08-02Fix more "no previous declaration" warningsJörg Mayer1-1/+1
svn path=/trunk/; revision=15171
2005-06-25from Kashyap DesaiRonnie Sahlberg1-2/+4
fix bug in conversation_delete_proto_data second argument to g_slist_remove() is a pointer to the data, not a GSlist containing a list of such pointers. svn path=/trunk/; revision=14755
2005-05-11Some applications do very naughty things like reusing a port for a different ↵Ronnie Sahlberg1-3/+15
protocol during different stages of an application cycle. This is very naughty and will cause problems when we have assigned a dissector to a dynamic port using conversation_set_dissector(). To make ethereal handle this case I have changed the try_conversation_dissector() to allow it to fail and return 0, meaning yes there is indeed a protocol registered for this conversation but that protocol rejected this packet. (which only happens for "new" style dissectors, "old" style dissectors will never reject a packet that way) When this happens the decode_udp_port() helper will still allow other dissectors to be tried, in the hope that the conversation is now used for some other protocol and thus someone else might be able to decode the packet. Update SNMP and TFTP dissectors to check that even if there already is a conversation but that conversation does NOT have snmp/tftp registered as the dissector for it, then create a new conversation anyway and attach the proper dissector. Since ethereal keeps track of which frame number a conversation started in, this actually works really well. svn path=/trunk/; revision=14345
2005-03-23use DISSECTOR_ASSERT instead of g_assertUlf Lamping1-3/+3
svn path=/trunk/; revision=13871
2005-02-03Check in the missing part of Jon Ringle's patch (the part that actuallyGuy Harris1-37/+77
changed the conversation code). svn path=/trunk/; revision=13250
2004-12-15From Peter Johansson: "template" conversations - if one is recognized,Guy Harris1-257/+406
the template is left around, and a new conversation is created with the wildcards in the template un-wildcarded. svn path=/trunk/; revision=12757
2004-07-18Set the svn:eol-style property on all text files to "native", so thatGuy Harris1-1/+1
they have LF at the end of the line on UN*X and CR/LF on Windows; hopefully this means that if a CR/LF version is checked in on Windows, the CRs will be stripped so that they show up only when checked out on Windows, not on UN*X. svn path=/trunk/; revision=11400
2004-07-06From Dinesh Dutt:Gerald Combs1-4/+4
- conversation.[ch] - To support not setting port2 on matching a conversation. This is used by protocols such as iSNS in which the client registers a TCP/UDP port with the server for notifications and the server sends notifications to this port from different source ports. - packet-isns.c - Added support for handling zero-length TLVs and ESI & SCN frames (when registering an SCN/ESI port, a conversation dissector is setup). svn path=/trunk/; revision=11320
2004-01-09Fix a comment.Guy Harris1-3/+3
svn path=/trunk/; revision=9605
2002-12-08From Dinesh Dutt: Add Fibre Channel support, including FCIP, Basic FCGerald Combs1-8/+42
header, Extended Link Service, Interswitch Link Service, FCP, and IPFC. svn path=/trunk/; revision=6757
2002-11-27Cast various "const gpointer" arguments to const pointers rather thanGuy Harris1-15/+18
non-const pointers. svn path=/trunk/; revision=6683
2002-10-29Move the stuff to save, recompute, and restore "can_desegment" out ofGuy Harris1-15/+2
"try_circuit_dissector()" and "try_conversation_dissector()", as both fo them call "call_dissector()" and "call_dissector()" now does that stuff itself. svn path=/trunk/; revision=6520
2002-08-28Removed trailing whitespaces from .h and .c files using theJörg Mayer1-17/+17
winapi_cleanup tool written by Patrik Stridvall for the wine project. svn path=/trunk/; revision=6116
2002-08-02Replace the types from sys/types.h and netinet/in.h by their glib.hJörg Mayer1-9/+1
equivalents for the epan/ directory but leave winsock2.h in inet_pton.c and inet_ntop.c for now (can't estimate the consequences). svn path=/trunk/; revision=5928
2002-05-09Added parsing of PORTMAP GETPORT functions.Ronnie Sahlberg1-2/+2
When we see PRTOMAP GETPORT calls for UDP, make sure all further UDP packets to or from this port goes to the ONC-RPC dissector regardless of the port on the other side. We need this because if there is ONC-RPC traffic going between the ONC-RPC Program port to a port which has a normal ethereal dissector, ethereal would dissect the traffic as the protocol associated with the other port instead. svn path=/trunk/; revision=5430
2001-11-29Update from Ronnie Sahlberg:Guy Harris1-2/+15
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
2001-11-27Change "conversation_set_dissector()" to take a dissector handle, ratherGuy Harris1-7/+8
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
2001-11-21Get rid of some unused variables.Guy Harris1-3/+1
svn path=/trunk/; revision=4239
2001-10-31Get rid of a bunch of stuff that was there to support non-tvbuffifiedGuy Harris1-34/+6
dissectors and that's no longer needed. svn path=/trunk/; revision=4112
2001-09-03Instead of having a single datum attached to a conversation, have a listGuy Harris1-3/+93
of protocol-id-plus-datum pairs, so that multiple protocols can attach information to the same conversation. Dissectors that attach information to a conversation should not assume that if they find a conversation it has one of its data attached to it; the conversation might've been created by another dissector. svn path=/trunk/; revision=3901
2001-09-03Don't pass wildcarded arguments to "find_conversation()" to routinesGuy Harris1-44/+181
that look up conversations in hash tables, unless they are arguments that will be ignored; if they're not being ignored, then if the argument is a null pointer you may get a crash if it's dereferenced, and if it's not a null pointer you'll only get a match if the conversation has whatever stuff the arguments points to as its first address or port. If you match a conversation with a wildcarded address and/or port, and the address and/or port matched a non-wildcarded search argument, and the conversation is for a connection-oriented transport protocol, set the wildcarded address and/or port for the conversation to the value that matched it. svn path=/trunk/; revision=3897
2001-09-03In "find_conversation()", do the same type of matching thatGuy Harris1-91/+125
"try_conversation_dissector()" does - start with as exact matches as possible, and then start doing wildcarding - so that it can find conversations with wildcard addresses or ports even if both address and port arguments are supplied to it. svn path=/trunk/; revision=3893
2001-06-10Rename the arguments and flags for the conversation routines, so as notGuy Harris1-204/+206
to imply that 1) conversations have source and destination addresses and ports - they don't (if they did, they'd be monologues, not conversations), they just have two address/port pairs for the two endpoints, with one or more of the address or port in the second pair possibly being wildcarded; 2) the first and second address or port argument to "find_conversation()" or "try_conversation_dissector()" have anything to do with the first or second address/port pair in a conversation - they don't, the two arguments to those routines are matched against *both* address/port pairs for a conversation; as otherwise people might think that they need to add flags to wildcard the first arguments "conversation_new()" or "find_conversation()" (they don't, they just have to pass the non-wildcarded address/port first and then pass the wildcarded one, even if that means passing the destination first and source second). svn path=/trunk/; revision=3537
2001-06-06Fix a comment.Guy Harris1-10/+14
Split some lines differently. svn path=/trunk/; revision=3519
2001-06-04Define a "COPY_ADDRESS()" macro, which copies the data in one address toGuy Harris1-20/+4
another (copying the data to a mallocated array) in "epan/packet_info.h", and use it in the conversation code. svn path=/trunk/; revision=3510
2001-06-04Add an "ADDRESSES_EQUAL()" macro, taking pointers to two "address"Guy Harris1-29/+10
structures as arguments, that evaluates to "true" if the two addresses are equal and "false" if they're not equal. Use that macro in the conversation code. svn path=/trunk/; revision=3509
2000-11-18Nobody calls "old_try_conversation_dissector()" orGuy Harris1-57/+1
"old_dissector_try_heuristic()" any more, as their users have all been tvbuffified - get rid of them. svn path=/trunk/; revision=2660
2000-11-18Do the checks for the presence of a conversation dissector the same wayGuy Harris1-10/+6
in "try_conversation_dissector()" that they're done in "old_try_conversation_dissector()". svn path=/trunk/; revision=2656
2000-11-18Don't attempt to call the dissector for a conversation if theGuy Harris1-3/+16
conversation doesn't have a dissector. svn path=/trunk/; revision=2655
2000-10-21Wildcard matching is tricky - you have to try wildcarding both theGuy Harris1-65/+391
source *and* destination port and/or both the source *and* destination address passed to "find_conversation()", because the packet for which you're trying to find the conversation may be going in the opposite direction to the packet for which the conversation was originally created. Create different hash tables for wildcarded conversations, to reduce the number of "is this a wildcard?" tests done when doing hash lookups. This is sufficient to allow the TFTP dissector to use conversations rather than being special-cased in the UDP dissector, and may also be sufficient to handle a similar problem with SMTP (request goes from client IP X port Y to server IP Z's well-known port, reply comes back from some other port on server Z to client IP X port Y), but further use may reveal other changes that should be made. svn path=/trunk/; revision=2525
2000-10-21Support for conversations with "wildcard" destination addresses, fromGuy Harris1-29/+118
Jeff Foster. svn path=/trunk/; revision=2523
2000-09-27First step in moving core Ethereal routines to libepan.Gilbert Ramirez1-0/+362
svn path=/trunk/; revision=2458
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