Commit Graph

64 Commits

Author SHA1 Message Date
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 4a41bdd1fc Use GLib's G_MODULE_EXPORT when defining constants and functions
exported by a plugin, rather than defining our own DLLEXPORT.

svn path=/trunk/; revision=2713
2000-11-29 09:49:30 +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
Laurent Deniel 6a480953a9 Miscellaneous code cleaning
- add <stdarg.h> or <varargs.h> in snprintf.h
  and remove those inclusions in the other #ifdef NEED_SNPRINTF_H codes

- remove the check of multiple inclusions in source (.c)  code
  (there is a bit loss of _cpp_ performance, but I prefer the gain of
   code reading and maintenance; and nowadays, disk caches and VM are
   correctly optimized ;-).

- protect all (well almost) header files against multiple inclusions

- add header (i.e. GPL license) in some include files

- reorganize a bit the way header files are included:

  First:
  #include <system_include_files>
  #include <external_package_include_files (e.g. gtk, glib etc.)>
  Then
  #include "ethereal_include_files"

  with the correct HAVE_XXX or NEED_XXX protections.

- add some HAVE_XXX checks before including some system header files

- add the same HAVE_XXX in wiretap as in ethereal

Please forgive me, if I break something (I've only compiled and regression
tested on Linux).

svn path=/trunk/; revision=2254
2000-08-11 13:37:21 +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
Gilbert Ramirez 07a7268c83 Change "unsigned gint64" to "guint64", and add GPL header to plugin_api.[ch]
svn path=/trunk/; revision=1606
2000-02-07 17:23:53 +00:00
Gilbert Ramirez c4fa7c87df Code changes, but not Makefile changes, for enabling plugins for Win32.
svn path=/trunk/; revision=1605
2000-02-07 17:08:27 +00:00