1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/* packet-ap1394.c
* Routines for Apple IP-over-IEEE 1394 packet disassembly
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/capture_dissectors.h>
#include <wsutil/pint.h>
#include <epan/addr_resolv.h>
#include <epan/etypes.h>
void proto_register_ap1394(void);
void proto_reg_handoff_ap1394(void);
static int proto_ap1394 = -1;
static int hf_ap1394_dst = -1;
static int hf_ap1394_src = -1;
static int hf_ap1394_type = -1;
static gint ett_ap1394 = -1;
static dissector_table_t ethertype_subdissector_table;
static gboolean
capture_ap1394(const guchar *pd, int offset, int len, capture_packet_info_t *cpinfo, const union wtap_pseudo_header *pseudo_header)
{
guint16 etype;
if (!BYTES_ARE_IN_FRAME(offset, len, 18)) {
return FALSE;
}
/* Skip destination and source addresses */
offset += 16;
etype = pntoh16(&pd[offset]);
offset += 2;
return try_capture_dissector("ethertype", etype, pd, offset, len, cpinfo, pseudo_header);
}
static int
dissect_ap1394(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_item *ti;
proto_tree *fh_tree = NULL;
guint16 etype;
tvbuff_t *next_tvb;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IP/IEEE1394");
col_clear(pinfo->cinfo, COL_INFO);
set_address_tvb(&pinfo->dl_src, AT_EUI64, 8, tvb, 8);
copy_address_shallow(&pinfo->src, &pinfo->dl_src);
set_address_tvb(&pinfo->dl_dst, AT_EUI64, 8, tvb, 0);
copy_address_shallow(&pinfo->dst, &pinfo->dl_dst);
if (tree) {
ti = proto_tree_add_protocol_format(tree, proto_ap1394, tvb, 0, 18,
"Apple IP-over-IEEE 1394, Src: %s, Dst: %s",
address_to_str(wmem_packet_scope(), &pinfo->src), address_to_str(wmem_packet_scope(), &pinfo->dst));
fh_tree = proto_item_add_subtree(ti, ett_ap1394);
proto_tree_add_item(fh_tree, hf_ap1394_dst, tvb, 0, 8, ENC_NA);
proto_tree_add_item(fh_tree, hf_ap1394_src, tvb, 8, 8, ENC_NA);
}
etype = tvb_get_ntohs(tvb, 16);
proto_tree_add_uint(fh_tree, hf_ap1394_type, tvb, 16, 2, etype);
next_tvb = tvb_new_subset_remaining(tvb, 18);
if (!dissector_try_uint(ethertype_subdissector_table, etype, next_tvb,
pinfo, tree))
{
call_data_dissector(next_tvb, pinfo, tree);
}
return tvb_captured_length(tvb);
}
void
proto_register_ap1394(void)
{
static hf_register_info hf[] = {
{ &hf_ap1394_dst,
{ "Destination", "ap1394.dst", FT_BYTES, BASE_NONE,
NULL, 0x0, "Destination address", HFILL }},
{ &hf_ap1394_src,
{ "Source", "ap1394.src", FT_BYTES, BASE_NONE,
NULL, 0x0, "Source address", HFILL }},
/* registered here but handled in ethertype.c */
{ &hf_ap1394_type,
{ "Type", "ap1394.type", FT_UINT16, BASE_HEX,
VALS(etype_vals), 0x0, NULL, HFILL }},
};
static gint *ett[] = {
&ett_ap1394,
};
proto_ap1394 = proto_register_protocol("Apple IP-over-IEEE 1394", "IP/IEEE1394", "ap1394");
proto_register_field_array(proto_ap1394, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
void
proto_reg_handoff_ap1394(void)
{
dissector_handle_t ap1394_handle;
ethertype_subdissector_table = find_dissector_table("ethertype");
ap1394_handle = create_dissector_handle(dissect_ap1394, proto_ap1394);
dissector_add_uint("wtap_encap", WTAP_ENCAP_APPLE_IP_OVER_IEEE1394, ap1394_handle);
register_capture_dissector("wtap_encap", WTAP_ENCAP_APPLE_IP_OVER_IEEE1394, capture_ap1394, proto_ap1394);
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
|
