forked from osmocom/wireshark
179 lines
5.7 KiB
C
179 lines
5.7 KiB
C
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/* packet-opa-fe.c
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* Routines for Omni-Path FE header dissection
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* Copyright (c) 2016, Intel Corporation.
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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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 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 <epan/packet.h>
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#include <epan/prefs.h>
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#include "packet-ssl.h"
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void proto_reg_handoff_opa_fe(void);
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void proto_register_opa_fe(void);
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#define OPA_FE_TCP_RANGE "3245-3248"
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#define OPA_FE_SSL_RANGE "3249-3252"
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/* Wireshark ID */
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static gint proto_opa_fe = -1;
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/* Variables to hold expansion values between packets */
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static gint ett_fe = -1;
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/* SnC Fields */
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static gint hf_opa_fe_magicnumber = -1;
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static gint hf_opa_fe_length_oob = -1;
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static gint hf_opa_fe_headerversion = -1;
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static gint hf_opa_fe_length = -1;
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static gint hf_opa_fe_Reserved64 = -1;
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/* Dissector Declarations */
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static dissector_handle_t opa_fe_handle;
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static dissector_handle_t opa_mad_handle;
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static range_t *global_fe_tcp_range = NULL;
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static range_t *global_fe_ssl_range = NULL;
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static range_t *fe_tcp_range = NULL;
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static range_t *fe_ssl_range = NULL;
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static int dissect_opa_fe(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
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{
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gint offset = 0; /* Current Offset */
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proto_item *FE_item;
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proto_tree *FE_tree;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "Omni-Path");
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col_clear(pinfo->cinfo, COL_INFO);
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tree = proto_tree_get_root(tree);
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FE_item = proto_tree_add_item(tree, proto_opa_fe, tvb, offset, 24, ENC_NA);
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FE_tree = proto_item_add_subtree(FE_item, ett_fe);
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proto_tree_add_item(FE_tree, hf_opa_fe_magicnumber, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(FE_tree, hf_opa_fe_length_oob, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(FE_tree, hf_opa_fe_headerversion, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(FE_tree, hf_opa_fe_length, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(FE_tree, hf_opa_fe_Reserved64, tvb, offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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/* Pass to OPA MAD dissector */
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call_dissector(opa_mad_handle, tvb_new_subset_remaining(tvb, offset), pinfo, FE_tree);
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return tvb_captured_length(tvb);
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}
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static void range_delete_fe_ssl_callback(guint32 port)
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{
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ssl_dissector_delete(port, opa_fe_handle);
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}
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static void range_add_fe_ssl_callback(guint32 port)
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{
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ssl_dissector_add(port, opa_fe_handle);
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}
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void proto_register_opa_fe(void)
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{
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module_t *opa_fe_module;
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static hf_register_info hf[] = {
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{ &hf_opa_fe_magicnumber, {
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"Magic Number", "opa.fe.magicnumber",
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FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_opa_fe_length_oob, {
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"Length OOB", "opa.fe.lengthoob",
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FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_opa_fe_headerversion, {
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"Header Version", "opa.fe.headerversion",
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FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_opa_fe_length, {
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"Length", "opa.fe.length",
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FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }
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},
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{ &hf_opa_fe_Reserved64, {
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"Reserved (64 bits)", "opa.fe.reserved64",
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FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL }
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}
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};
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static gint *ett[] = {
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&ett_fe
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};
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proto_opa_fe = proto_register_protocol(
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"Intel Omni-Path FE Header - Omni-Path Fabric Excutive Header",
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"OPA FE", "opa.fe");
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opa_fe_handle = register_dissector("opa.fe", dissect_opa_fe, proto_opa_fe);
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proto_register_field_array(proto_opa_fe, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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opa_fe_module = prefs_register_protocol(proto_opa_fe, proto_reg_handoff_opa_fe);
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range_convert_str(&global_fe_ssl_range, OPA_FE_SSL_RANGE, 65535);
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fe_ssl_range = range_empty();
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prefs_register_range_preference(opa_fe_module, "ssl.port", "SSL/TLS Ports",
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"SSL/TLS Ports range",
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&global_fe_ssl_range, 65535);
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range_convert_str(&global_fe_tcp_range, OPA_FE_TCP_RANGE, 65535);
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fe_tcp_range = range_empty();
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prefs_register_range_preference(opa_fe_module, "tcp.port", "TCP Ports",
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"TCP Ports range",
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&global_fe_tcp_range, 65535);
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}
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void proto_reg_handoff_opa_fe(void)
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{
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opa_mad_handle = find_dissector("opa.mad");
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range_foreach(fe_ssl_range, range_delete_fe_ssl_callback);
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g_free(fe_ssl_range);
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fe_ssl_range = range_copy(global_fe_ssl_range);
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range_foreach(fe_ssl_range, range_add_fe_ssl_callback);
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dissector_delete_uint_range("tcp.port", fe_tcp_range, opa_fe_handle);
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g_free(fe_tcp_range);
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fe_tcp_range = range_copy(global_fe_tcp_range);
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dissector_add_uint_range("tcp.port", fe_tcp_range, opa_fe_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: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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