121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/* packet-ipoib.c
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* Routines for decoding IP over InfiniBand (IPoIB) packet disassembly
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* See: http://tools.ietf.org/html/rfc4391#section-6
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/etypes.h>
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static int proto_ipoib = -1;
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static int hf_type = -1;
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static int hf_reserved = -1;
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static gint ett_raw = -1;
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static dissector_handle_t arp_handle;
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static dissector_handle_t ip_handle;
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static dissector_handle_t ipv6_handle;
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static void
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dissect_ipoib(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_tree *fh_tree;
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proto_item *ti;
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tvbuff_t *next_tvb;
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guint16 type;
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/* load the top pane info. This should be overwritten by
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the next protocol in the stack */
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPoIB");
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col_set_str(pinfo->cinfo, COL_INFO, "IP over Infiniband");
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/* populate a tree in the second pane with the IPoIB header data */
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if (tree) {
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ti = proto_tree_add_item (tree, proto_ipoib, tvb, 0, 4, ENC_NA);
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fh_tree = proto_item_add_subtree(ti, ett_raw);
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proto_tree_add_item(fh_tree, hf_type, tvb, 0, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(fh_tree, hf_reserved, tvb, 2, 2, ENC_BIG_ENDIAN);
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}
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next_tvb = tvb_new_subset_remaining(tvb, 4);
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type = tvb_get_ntohs(tvb, 0);
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switch (type) {
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case ETHERTYPE_IP:
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call_dissector(ip_handle, next_tvb, pinfo, tree);
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break;
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case ETHERTYPE_IPv6:
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call_dissector(ipv6_handle, next_tvb, pinfo, tree);
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break;
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case ETHERTYPE_ARP:
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case ETHERTYPE_REVARP:
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call_dissector(arp_handle, next_tvb, pinfo, tree);
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break;
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default:
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break;
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}
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}
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void
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proto_register_ipoib(void)
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{
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static hf_register_info hf[] = {
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{ &hf_type,
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{ "Type", "ipoib.type",
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FT_UINT16, BASE_HEX, VALS(etype_vals), 0x0,
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NULL, HFILL }},
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{ &hf_reserved,
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{ "Reserved", "ipoib.reserved",
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FT_UINT16, BASE_HEX, NULL, 0x0,
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NULL, HFILL }}
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};
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static gint *ett[] = {
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&ett_raw
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};
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proto_ipoib = proto_register_protocol("IP over Infiniband", "IPoIB", "ipoib");
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proto_register_field_array(proto_ipoib, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_ipoib(void)
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{
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dissector_handle_t ipoib_handle;
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/*
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* Get handles for the ARP, IP and IPv6 dissectors.
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*/
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arp_handle = find_dissector("arp");
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ip_handle = find_dissector("ip");
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ipv6_handle = find_dissector("ipv6");
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ipoib_handle = create_dissector_handle(dissect_ipoib, proto_ipoib);
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dissector_add_uint("wtap_encap", WTAP_ENCAP_IP_OVER_IB, ipoib_handle);
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}
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