2 * Routines for Apple IP-over-IEEE 1394 packet disassembly
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 #include <epan/packet.h>
31 #include <epan/addr_resolv.h>
32 #include <epan/strutil.h>
34 #include "packet-ap1394.h"
35 #include <epan/etypes.h>
37 static int proto_ap1394 = -1;
38 static int hf_ap1394_dst = -1;
39 static int hf_ap1394_src = -1;
40 static int hf_ap1394_type = -1;
42 static gint ett_ap1394 = -1;
44 static dissector_table_t ethertype_subdissector_table;
46 static dissector_handle_t data_handle;
49 capture_ap1394(const guchar *pd, int offset, int len, packet_counts *ld)
53 if (!BYTES_ARE_IN_FRAME(offset, len, 18)) {
58 /* Skip destination and source addresses */
61 etype = pntohs(&pd[offset]);
63 capture_ethertype(etype, pd, offset, len, ld);
67 dissect_ap1394(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
70 proto_tree *fh_tree = NULL;
71 const guint8 *src_addr, *dst_addr;
75 col_set_str(pinfo->cinfo, COL_PROTOCOL, "IP/IEEE1394");
76 col_clear(pinfo->cinfo, COL_INFO);
78 src_addr=tvb_get_ptr(tvb, 8, 8);
79 SET_ADDRESS(&pinfo->dl_src, AT_EUI64, 8, src_addr);
80 SET_ADDRESS(&pinfo->src, AT_EUI64, 8, src_addr);
81 dst_addr=tvb_get_ptr(tvb, 0, 8);
82 SET_ADDRESS(&pinfo->dl_dst, AT_EUI64, 8, dst_addr);
83 SET_ADDRESS(&pinfo->dst, AT_EUI64, 8, dst_addr);
86 ti = proto_tree_add_protocol_format(tree, proto_ap1394, tvb, 0, 18,
87 "Apple IP-over-IEEE 1394, Src: %s, Dst: %s",
88 bytes_to_str(src_addr, 8), bytes_to_str(dst_addr, 8));
89 fh_tree = proto_item_add_subtree(ti, ett_ap1394);
90 proto_tree_add_bytes(fh_tree, hf_ap1394_dst, tvb, 0, 8, dst_addr);
91 proto_tree_add_bytes(fh_tree, hf_ap1394_src, tvb, 8, 8, src_addr);
93 etype = tvb_get_ntohs(tvb, 16);
95 proto_tree_add_uint(fh_tree, hf_ap1394_type, tvb, 16, 2, etype);
96 next_tvb = tvb_new_subset_remaining(tvb, 18);
97 if (!dissector_try_port(ethertype_subdissector_table, etype, next_tvb,
99 call_dissector(data_handle, next_tvb, pinfo, tree);
103 proto_register_ap1394(void)
105 static hf_register_info hf[] = {
107 { "Destination", "ap1394.dst", FT_BYTES, BASE_NONE,
108 NULL, 0x0, "Destination address", HFILL }},
110 { "Source", "ap1394.src", FT_BYTES, BASE_NONE,
111 NULL, 0x0, "Source address", HFILL }},
112 /* registered here but handled in ethertype.c */
114 { "Type", "ap1394.type", FT_UINT16, BASE_HEX,
115 VALS(etype_vals), 0x0, NULL, HFILL }},
117 static gint *ett[] = {
121 proto_ap1394 = proto_register_protocol("Apple IP-over-IEEE 1394", "IP/IEEE1394", "ap1394");
122 proto_register_field_array(proto_ap1394, hf, array_length(hf));
123 proto_register_subtree_array(ett, array_length(ett));
127 proto_reg_handoff_ap1394(void)
129 dissector_handle_t ap1394_handle;
131 data_handle = find_dissector("data");
133 ethertype_subdissector_table = find_dissector_table("ethertype");
135 ap1394_handle = create_dissector_handle(dissect_ap1394, proto_ap1394);
136 dissector_add("wtap_encap", WTAP_ENCAP_APPLE_IP_OVER_IEEE1394, ap1394_handle);