Add the "Edit:Protocols..." feature which currently only implements

the following:

It is now possible to enable/disable a particular protocol decoding
(i.e. the protocol dissector is void or not). When a protocol
is disabled, it is displayed as Data and of course, all linked
sub-protocols are disabled as well.

Disabling a protocol could be interesting:

- in case of buggy dissectors
- in case of wrong heuristics
- for performance reasons
- to decode the data as another protocol (TODO)

Currently (if I am not wrong), all dissectors but NFS can be disabled
(and dissectors that do not register protocols :-)

I do not like the way the RPC sub-dissectors are disabled (in the
sub-dissectors) since this could be done in the RPC dissector itself,
knowing the sub-protocol hfinfo entry (this is why, I've not modified
the NFS one yet).

Two functions are added in proto.c :

gboolean proto_is_protocol_enabled(int n);
void proto_set_decoding(int n, gboolean enabled);

and two MACROs which can be used in dissectors:

OLD_CHECK_DISPLAY_AS_DATA(index, pd, offset, fd, tree)
CHECK_DISPLAY_AS_DATA(index, tvb, pinfo, tree)

See also the XXX in proto_dlg.c and proto.c around the new functions.

svn path=/trunk/; revision=2267

1 files changed, 7 insertions, 1 deletions

diff --git a/packet-atalk.c b/packet-atalk.c
index a9f85b3572..9ec3359b07 100644
--- a/packet-atalk.c
+++ b/packet-atalk.c
@@ -1,7 +1,7 @@
 /* packet-atalk.c
  * Routines for Appletalk packet disassembly (DDP, currently).
  *
- * $Id: packet-atalk.c,v 1.39 2000/08/07 03:20:22 guy Exp $
+ * $Id: packet-atalk.c,v 1.40 2000/08/13 14:08:00 deniel Exp $
  *
  * Simon Wilkinson <sxw@dcs.ed.ac.uk>
  *
@@ -196,6 +196,8 @@ dissect_rtmp_data(const u_char *pd, int offset, frame_data *fd, proto_tree *tree
   guint16 node; /* might be more than 8 bits */
   int i;
 
+  OLD_CHECK_DISPLAY_AS_DATA(proto_rtmp, pd, offset, fd, tree);
+
   if (!BYTES_ARE_IN_FRAME(offset, 3)) {
     old_dissect_data(pd, offset, fd, tree);
     return;
@@ -292,6 +294,8 @@ dissect_nbp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
   guint op, count;
   int i;
 
+  OLD_CHECK_DISPLAY_AS_DATA(proto_nbp, pd, offset, fd, tree);
+
   if (!BYTES_ARE_IN_FRAME(offset, 2)) {
     old_dissect_data(pd, offset, fd, tree);
     return;
@@ -370,6 +374,8 @@ dissect_ddp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
   proto_item *ti;
   static struct atalk_ddp_addr src, dst;
 
+  OLD_CHECK_DISPLAY_AS_DATA(proto_ddp, pd, offset, fd, tree);
+
   if (!BYTES_ARE_IN_FRAME(offset, DDP_HEADER_SIZE)) {
     old_dissect_data(pd, offset, fd, tree);
     return;