Change the sub-dissector handoff registration routines so that the

sub-dissector table is not stored in the header_field_info struct, but
in a separate namespace. Dissector tables are now registered by name
and not by field ID. For example:

        udp_dissector_table = register_dissector_table("udp.port");

Because of this different namespace, dissector tables can have names
that are not field names.  This is useful for ethertype, since multiple
fields are "ethertypes".

packet-ethertype.c replaces ethertype.c (the name was changed so that it
would be named in the same fashion as all the filenames passed to make-reg-dotc)

Although it registers no protocol or field, it registers one dissector table:

	ethertype_dissector_table = register_dissector_table("ethertype");

All protocols that can be called because of an ethertype field now register
that fact with dissector_add() calls.

In this way, one dissector_table services all ethertype fields
(hf_eth_type, hf_llc_type, hf_null_etype, hf_vlan_etype)

Furthermore, the code allows for names of protocols to exist in the
etype_vals, yet a dissector for that protocol doesn't exist. The name
of the dissector is printed in COL_INFO. You're welcome, Richard. :-)

svn path=/trunk/; revision=1848

1 files changed, 8 insertions, 1 deletions

diff --git a/packet-arp.c b/packet-arp.c
index cce1e92028..57513c91df 100644
--- a/packet-arp.c
+++ b/packet-arp.c
@@ -1,7 +1,7 @@
 /* packet-arp.c
  * Routines for ARP packet disassembly
  *
- * $Id: packet-arp.c,v 1.26 2000/03/12 04:47:34 gram Exp $
+ * $Id: packet-arp.c,v 1.27 2000/04/13 18:18:43 gram Exp $
  *
  * Ethereal - Network traffic analyzer
  * By Gerald Combs <gerald@zing.org>
@@ -792,3 +792,10 @@ proto_register_arp(void)
   proto_register_field_array(proto_arp, hf, array_length(hf));
   proto_register_subtree_array(ett, array_length(ett));
 }
+
+void
+proto_reg_handoff_arp(void)
+{
+	dissector_add("ethertype", ETHERTYPE_ARP, dissect_arp);
+	dissector_add("ethertype", ETHERTYPE_REVARP, dissect_arp);
+}