Commit graph

68 commits

Author SHA1 Message Date
Guy Harris
d42a2a652f "tvb_get_ptr()" now returns a "const guint8 *", not a "guint8 *"; adjust
the plugin-API declarations appropriately.

svn path=/trunk/; revision=3242
2001-04-02 09:55:34 +00:00
Guy Harris
7eaadf4048 Add "col_clear()" to the list of functions in the transfer vector for
plugins, as the MGCP dissector uses it.

Don't set pointers to "dfilter_init()" and "dfilter_cleanup()" in that
transfer vector, as there *aren't* any pointers to them in the transfer
vector.

svn path=/trunk/; revision=2949
2001-01-28 20:26:20 +00:00
Guy Harris
e7ea7a34e9 Clean up the dissector registration up a bit - arrange that all plugins
be loaded and their initialization routines called in right after we
call the initialization routines for built-in dissectors, but don't call
their handoff registration routines yet, and then call the handoff
registration routines right after calling the handoff registration
routines for built-in dissectors.

Do all that in "proto_init()", rather than "epan_init()".

That way, we call all dissector registration routines together, and then
call all dissector handoff registration routines together; all the
registration routines are called before any handoff registration
routines, as is required, and, as "proto_init()" is called by
"epan_init()" before "dfilter_init()" is called, all filterable fields
have been registered before "dfilter_init()" is called, and no plugins
have to call "dfilter_init()" themselves to get their fields registered.

Remove pointers to "dfilter_init()" and "dfilter_cleanup()" from the
plugin address table, as plugins shouldn't be calling them any more, and
remove calls to them from plugins.

svn path=/trunk/; revision=2940
2001-01-26 06:14:53 +00:00
Guy Harris
2072d03e78 Tvbuffify the PIM dissector.
It was the last dissector that used "old_call_dissector()", and
tvbuffifying it got rid of that, so get rid of "old_call_dissector()".

svn path=/trunk/; revision=2892
2001-01-13 06:34:35 +00:00
Guy Harris
43ccfd8054 Add an additional "protocol index" argument to "{old_}dissector_add()",
"{old_}heur_dissector_add()", "{old_}conv_dissector_add()", and
"register_dissector()", so that an entry in those tables has associated
with it the protocol index of the protocol the dissector handles (or -1,
if there is no protocol index for it).

This is for future use in a number of places.

(Arguably, "proto_register_protocol()" should take a dissector pointer
as an argument, but

	1) it'd have to handle both regular and heuristic dissectors;

	2) making it take either a "dissector_t" or a union of that and
	   a "heur_dissector_t" introduces some painful header-file
	   interdependencies

so I'm punting on that for now.  As with other Ethereal internal APIs,
these APIs are subject to change in the future, at least until Ethereal
1.0 comes out....)

svn path=/trunk/; revision=2849
2001-01-09 06:32:10 +00:00
Guy Harris
3613c121fe Add a new "prefs_register_protocol()" routine, which is like
"prefs_register_module()" except that it takes a protocol index as
returned by "proto_register_protocol()" as its first argument, rather
than taking two character strings as arguments as its first two
arguments, and uses the protocol's abbreviation as the name to use for
preferences in the preferences file and the "-o" flag and uses the
protocol's short name as the name to use in the tabs in the
"Edit->Preferences" window.

svn path=/trunk/; revision=2812
2001-01-03 07:53:48 +00:00
Guy Harris
fee98dd944 Have "proto_register_protocol()" build a list of data structures for
protocols, in addition to adding structures to the list of filterable
fields.  Give it an extra argument that specifies a "short name" for the
protocol, for use in such places as

	pinfo->current_proto;

	the dialog box for constructing filters;

	the preferences tab for the protocol;

and so on (although we're not yet using it in all those places).

Make the preference name that appears in the preferences file and the
command line for the DIAMETER protocol "diameter", not "Diameter"; the
convention is that the name in question be all-lower-case.

Make some routines and variables that aren't exported static.

Update a comment in the ICP dissector to make it clear that the
dissector won't see fragments other than the first fragment of a
fragmented datagram.

svn path=/trunk/; revision=2811
2001-01-03 07:37:29 +00:00
Guy Harris
74777083d3 Fix a number of problems that caused compiles to fail if
PLUGINS_NEED_ADDRESS_TABLE was defined.

svn path=/trunk/; revision=2662
2000-11-18 21:41:40 +00:00
Guy Harris
ee1b884ee9 Tvbuffify the STP dissector, have it register itself and have the LLC
dissector call it through a handle, and make it static.

Give "dissect_data()" an "offset" argument, so dissectors can use it to
dissect part of the packet without having to cook up a new tvbuff.

Go back to using "dissect_data()" to dissect the data in an IPP request.

svn path=/trunk/; revision=2651
2000-11-16 07:35:43 +00:00
Guy Harris
77ad89b12d Add a mechanism by which a dissector can be registered by name, another
dissector can get a "handle" for that dissector by name and then call
that dissector through the handle.

This allows dissectors that can't be called through a port table or a
heuristic table to be called from other dissectors without directly
referring to the dissector function - dynamically-loaded modules, under
Windows, cannot directly call functions in the main program, and
non-plugin dissectors are in the main program and thus cannot be called
from plugin dissectors unless either

	1) a pointer to the dissector is put in the Big Transfer Vector

or

	2) some other mechanism for getting a pointer to the dissector
	   is provided.

This mechanism could also support registering old-style dissectors and
calling them from new-style dissectors without the new-style dissector
having to do the argument translation itself (I didn't add support for
registering old-style dissectors because I'd prefer to have people
tvbuffify their code if they have to register a dissector...).

It could also, in the future, perhaps support

	disabling of protocols;

	setting "pinfo->current_proto";

inside "call_dissector()" - and inside "{old_}dissector_try_port()" and
"{old_"dissector_try_heuristic()" - allowing a pile of stuff that
currently has to be done in every dissector be done by common code.
(I have some ideas about how to do this, by

	having "proto_register_protocol()" take an abbreviation - of the
	sort that would be put in, for example, "pinfo->current_proto" -
	as an argument;

	having the calls to register dissectors take an index returned
	by "proto_register_protocol()" as an argument.

The abbreviation could be used elsewhere as well, e.g. in the "Decoding"
tab of the "Edit->Protocols" dialog box, and in a GUI for constructing
protocol filters.  Watch this space.)

Make "dissect_sdp()" the first client of this mechanism; it's now static
to "packet-sdp.c", and all dissectors that call it - including the MGCP
plugin - now call it through a dissector handle fetched by
"find_dissector()".  (Next step - see if Ethereal can now compile on
Windows as a result of this.)

svn path=/trunk/; revision=2647
2000-11-15 07:07:52 +00:00
Guy Harris
e8bebbd727 "plugin_api.c" needs to include <glib.h>, to define G_HAVE_GINT64 on
platforms that have "gint64".

Fix plugin-table lines for "dissector_delete()", "dissect_data()",
"prefs_register_module()", and "prefs_register_uint_preference()".

The MGCP dissector uses routines from GLib, so when building it as a DLL
for Windows, it has to be linked with "glib-XXX.lib".

svn path=/trunk/; revision=2643
2000-11-14 10:38:15 +00:00
Guy Harris
b830fb6a5f Add "dissector_delete()", "proto_item_get_len()",
"proto_item_set_len()", "proto_item_set_text()", and the preference
routines expected to be used by dissectors to the table of function
pointers handed to dissectors on platforms where dynamically-loaded
modules can't access symbols from the main program.

svn path=/trunk/; revision=2638
2000-11-13 10:13:26 +00:00
Guy Harris
ead1cadaf3 Add the tvbuff routines expected to be used by dissectors to the table
of function pointers handed to dissectors on platforms where
dynamically-loaded modules can't access symbols from the main program.

svn path=/trunk/; revision=2635
2000-11-13 08:00:12 +00:00
Guy Harris
5694059e97 Add a Makefile.nmake for the MGCP plugin, and update
"plugins/Makefile.nmake" to build that plugin.

Add to the table of routines callable from plugins
"old_dissector_add()", "old_dissect_data()", and
"proto_is_protocol_enabled()", so that the Gryphon dissector can build
on Windows.

Move the includes of "plugins/plugin_api.h" and "moduleinfo.h" before
all the other includes, except for "config.h", in "plugin-mgcp.c", to
match what the Gryphon dissector does; "plugins_api.h" must be included
before any of the routines whose names it #defines in order for the
plugin to build on Windows.  (It still doesn't build on Windows, as
still more routines need to be added to the table of routines callable
from plugins, but tomorrow is another day.  Making libethereal a DLL may
obviate the need for that table, *if* all the routines called from a
plugin are in libethereal, as I think routines in a DLL, even a
run-time-loaded DLL, can call routines from another DLL as long as those
routines are exported from the other DLL.)

svn path=/trunk/; revision=2622
2000-11-12 11:08:46 +00:00
Gilbert Ramirez
5a5f56ffbf Fix plugin function table so that plugins work on Win32.
svn path=/trunk/; revision=2034
2000-05-31 18:32:15 +00:00
Guy Harris
6bbfd97bde Add routines to:
register lists of "heuristic" dissectors, which are handed a
	frame that may or may contain a payload for the protocol they
	dissect, and that return FALSE if it's not or dissect the packet
	and return TRUE if it is;

	add a dissector to such a list;

	go through such a list, calling each dissector until either a
	dissector returns TRUE, in which case the routine returns TRUE,
	or it runs out of entries in the list, in which case the routine
	returns FALSE.

Have lists of heuristic dissectors for TCP and for COTP when used with
the Inactive Subset of CLNP, and add the GIOP and Yahoo Messenger
dissectors to the first list and the Sinec H1 dissector to the second
list.

Make the dissector name argument to "dissector_add()" and
"dissector_delete()" a "const char *" rarther than just a "char *".

Add "heur_dissector_add()", the routine to add a heuristic dissector to
a list of heuristic dissectors, to the set of routines we can export to
plugins through a table on platforms where dynamically-loaded code can't
call stuff in the main program, and initialize the element in the table
in question for "dissector_add()" (which we'd forgotten to do).

svn path=/trunk/; revision=1909
2000-05-05 09:32:36 +00:00
Guy Harris
22ec050ed8 Add "dissector_add()" to the list of routines exported to plugins via
the Big Function Pointer Table.

svn path=/trunk/; revision=1797
2000-04-04 21:46:29 +00:00
Guy Harris
eedea6fcd4 Give all the Ethereal APIs available to plugins their own function
pointers, and call the APIs by calling through the function pointers -
the old technique of using wrappers didn't work, as the underlying
function they all called no longer exists.

svn path=/trunk/; revision=1724
2000-03-15 19:09:52 +00:00