diff options
Diffstat (limited to 'epan/dissectors/packet-ap1394.c')
| -rw-r--r-- | epan/dissectors/packet-ap1394.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/epan/dissectors/packet-ap1394.c b/epan/dissectors/packet-ap1394.c new file mode 100644 index 0000000000..9560391eaa --- /dev/null +++ b/epan/dissectors/packet-ap1394.c @@ -0,0 +1,125 @@ +/* packet-ap1394.c + * Routines for Apple IP-over-IEEE 1394 packet disassembly + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <glib.h> +#include <epan/packet.h> +#include <epan/resolv.h> +#include <epan/strutil.h> + +#include "packet-ap1394.h" +#include "etypes.h" + +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; + +void +capture_ap1394(const guchar *pd, int offset, int len, packet_counts *ld) +{ + guint16 etype; + + if (!BYTES_ARE_IN_FRAME(offset, len, 18)) { + ld->other++; + return; + } + + /* Skip destination and source addresses */ + offset += 16; + + etype = pntohs(&pd[offset]); + offset += 2; + capture_ethertype(etype, pd, offset, len, ld); +} + +static void +dissect_ap1394(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + proto_item *ti; + proto_tree *fh_tree = NULL; + const char *src_addr, *dst_addr; + guint16 etype; + + if (check_col(pinfo->cinfo, COL_PROTOCOL)) + col_set_str(pinfo->cinfo, COL_PROTOCOL, "IP/IEEE1394"); + if (check_col(pinfo->cinfo, COL_INFO)) + col_clear(pinfo->cinfo, COL_INFO); + + src_addr=tvb_get_ptr(tvb, 8, 8); + SET_ADDRESS(&pinfo->dl_src, AT_EUI64, 8, src_addr); + SET_ADDRESS(&pinfo->src, AT_EUI64, 8, src_addr); + dst_addr=tvb_get_ptr(tvb, 0, 8); + SET_ADDRESS(&pinfo->dl_dst, AT_EUI64, 8, dst_addr); + SET_ADDRESS(&pinfo->dst, AT_EUI64, 8, dst_addr); + + if (tree) { + ti = proto_tree_add_protocol_format(tree, proto_ap1394, tvb, 0, 18, + "Apple IP-over-IEEE 1394, Src: %s, Dst: %s", + bytes_to_str(src_addr, 8), bytes_to_str(dst_addr, 8)); + fh_tree = proto_item_add_subtree(ti, ett_ap1394); + proto_tree_add_bytes(fh_tree, hf_ap1394_dst, tvb, 0, 8, dst_addr); + proto_tree_add_bytes(fh_tree, hf_ap1394_src, tvb, 8, 8, src_addr); + } + etype = tvb_get_ntohs(tvb, 16); + ethertype(etype, tvb, 18, pinfo, tree, fh_tree, hf_ap1394_type, -1, 0); +} + +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, "", 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; + + ap1394_handle = create_dissector_handle(dissect_ap1394, proto_ap1394); + dissector_add("wtap_encap", WTAP_ENCAP_APPLE_IP_OVER_IEEE1394, ap1394_handle); +} |