2 * Routines for pulse dissection
3 * Copyright 2013, Masatake YAMATO <yamato@redhat.com>
4 * Copyright 2013, Red Hat, Inc.
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * SPDX-License-Identifier: GPL-2.0-or-later
15 http://sourceware.org/piranha/ */
19 #include <epan/packet.h>
21 #define PORT_PULSE 539 /* Not IANA registered */
23 void proto_register_pulse(void);
24 void proto_reg_handoff_pulse(void);
26 static int proto_pulse = -1;
27 static int hf_pulse_magic = -1;
28 static gint ett_pulse = -1;
31 #define PULSE_HEARTBEAT_RUNNING_MAGIC 0xbdaddbda
32 #define PULSE_HEARTBEAT_STOPPED_MAGIC 0xadbddabd
34 static const value_string pulse_magic_type[] = {
35 { PULSE_HEARTBEAT_RUNNING_MAGIC, "running" },
36 { PULSE_HEARTBEAT_STOPPED_MAGIC, "stopped" },
41 dissect_pulse(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data _U_)
47 const char* magic_str;
50 if (tvb_captured_length(tvb) < 4)
53 /* Try to read MAGIC in both endians */
54 little_endian = ENC_LITTLE_ENDIAN;
55 magic = tvb_get_letohl(tvb, 0);
56 magic_str = try_val_to_str(magic, pulse_magic_type);
57 if (magic_str == NULL) {
58 magic = tvb_get_ntohl(tvb, 0);
59 magic_str = try_val_to_str(magic, pulse_magic_type);
60 if (magic_str == NULL) {
63 little_endian = ENC_BIG_ENDIAN;
66 col_set_str(pinfo->cinfo, COL_PROTOCOL, "PULSE");
67 col_set_str(pinfo->cinfo, COL_INFO, magic_str);
70 item = proto_tree_add_item(parent_tree, proto_pulse, tvb, 0,
72 tree = proto_item_add_subtree(item, ett_pulse);
73 proto_tree_add_item(tree, hf_pulse_magic, tvb, 0, 4, little_endian);
79 proto_register_pulse(void)
81 static hf_register_info hf[] = {
83 { "Magic", "pulse.magic",
84 FT_UINT32, BASE_HEX, VALS(pulse_magic_type), 0x0,
88 static gint *ett[] = {
93 proto_pulse = proto_register_protocol("PULSE protocol for Linux Virtual Server redundancy", "PULSE", "pulse");
94 proto_register_field_array(proto_pulse, hf, array_length(hf));
95 proto_register_subtree_array(ett, array_length(ett));
99 proto_reg_handoff_pulse(void)
101 dissector_handle_t pulse_handle;
102 pulse_handle = create_dissector_handle(dissect_pulse, proto_pulse);
103 dissector_add_uint_with_preference("udp.port", PORT_PULSE, pulse_handle);
107 * Editor modelines - https://www.wireshark.org/tools/modelines.html
112 * indent-tabs-mode: nil
115 * vi: set shiftwidth=4 tabstop=8 expandtab:
116 * :indentSize=4:tabSize=8:noTabs=true: