forked from osmocom/wireshark
145 lines
4.3 KiB
C
145 lines
4.3 KiB
C
/* packet-ans.c
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* Routines for Intel ANS probe dissection
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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 2003 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* The following information was graciously provided by Intel:
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* Offset Size (bytes) Contents
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* 0 6 Destination Broadcast probes: {FF,FF,FF,FF,FF,FF}
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* Multicast probes: {01,AA,00,00,00,00}
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* 6 6 Source Matches the CurrentMACAddress of the
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* adapter sending the probe.
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* 8 2 Type Network order is 0x886D, Intel's reserved
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* packet type.
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* 10 (0) 2 ApplicationID Network order is 0x0001, identifies
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* it as fault tolerance probe.
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* 12 (2) 2 RevID Network order, identifies the revision id
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* of Teaming software.
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* 16 (4) 4 ProbeSequenceNumber Ascending sequence number
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* that identifies the current probing cycle.
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* 20 (8) 2 SenderID Unique ID within a team identifying
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* the member that originally sent the probe.
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* 22 (10) 6 TeamID Unique ID identifying the team in charge
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* of this probe.
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* 28 Padding Reserved
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*
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/to_str.h>
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#include <epan/etypes.h>
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void proto_register_ans(void);
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void proto_reg_handoff_ans(void);
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/* Initialize the protocol and registered fields */
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static int proto_ans = -1;
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static int hf_ans_app_id = -1;
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static int hf_ans_rev_id = -1;
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static int hf_ans_seq_num = -1;
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static int hf_ans_sender_id = -1;
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static int hf_ans_team_id = -1;
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/* Initialize the subtree pointers */
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static gint ett_ans = -1;
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/* Code to actually dissect the packets */
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static int
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dissect_ans(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_item *ti;
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proto_tree *ans_tree;
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guint16 sender_id;
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guint32 seq_num;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "Intel ANS probe");
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seq_num = tvb_get_ntohl(tvb, 4);
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sender_id = tvb_get_ntohs(tvb, 8);
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col_add_fstr(pinfo->cinfo, COL_INFO, "Sequence: %u, Sender ID %u, Team ID %s",
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seq_num, sender_id, tvb_ether_to_str(pinfo->pool, tvb, 10));
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ti = proto_tree_add_item(tree, proto_ans, tvb, 0, -1, ENC_NA);
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ans_tree = proto_item_add_subtree(ti, ett_ans);
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proto_tree_add_item(ans_tree, hf_ans_app_id, tvb, 0, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(ans_tree, hf_ans_rev_id, tvb, 2, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(ans_tree, hf_ans_seq_num, tvb, 4, 4, ENC_BIG_ENDIAN);
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proto_tree_add_item(ans_tree, hf_ans_sender_id, tvb, 8, 2, ENC_BIG_ENDIAN);
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proto_tree_add_item(ans_tree, hf_ans_team_id, tvb, 10, 6, ENC_NA);
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return tvb_captured_length(tvb);
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}
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void
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proto_register_ans(void)
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{
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static hf_register_info hf[] = {
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{ &hf_ans_app_id,
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{ "Application ID", "ans.app_id",
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FT_UINT16, BASE_HEX, NULL, 0,
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"Intel ANS Application ID", HFILL }
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},
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{ &hf_ans_rev_id,
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{ "Revision ID", "ans.rev_id",
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FT_UINT16, BASE_HEX, NULL, 0,
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"Intel ANS Revision ID", HFILL }
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},
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{ &hf_ans_seq_num,
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{ "Sequence Number", "ans.seq_num",
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FT_UINT32, BASE_DEC, NULL, 0,
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"Intel ANS Sequence Number", HFILL }
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},
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{ &hf_ans_sender_id,
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{ "Sender ID", "ans.sender_id",
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FT_UINT16, BASE_DEC, NULL, 0,
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"Intel ANS Sender ID", HFILL }
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},
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{ &hf_ans_team_id,
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{ "Team ID", "ans.team_id",
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FT_ETHER, BASE_NONE, NULL, 0,
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"Intel ANS Team ID", HFILL }
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},
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};
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static gint *ett[] = {
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&ett_ans,
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};
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proto_ans = proto_register_protocol("Intel ANS probe", "ANS", "ans");
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proto_register_field_array(proto_ans, 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_ans(void)
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{
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dissector_handle_t ans_handle;
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ans_handle = create_dissector_handle(dissect_ans, proto_ans);
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dissector_add_uint("ethertype", ETHERTYPE_INTEL_ANS, ans_handle);
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}
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/*
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* Editor modelines - https://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 8
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* tab-width: 8
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* indent-tabs-mode: t
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* End:
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*
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* vi: set shiftwidth=8 tabstop=8 noexpandtab:
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* :indentSize=8:tabSize=8:noTabs=false:
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*/
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