2016-01-14 00:07:12 +00:00
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/* packet-ipos.c
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* Routines for IPOS dissection
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* Copyright 2015, Chuan He <chuan.he@ericsson.com>
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* Anders Broman <anders.broman@ericsson.com>
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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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/*
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* This is a dissector for Ericsson IPOS Linux kernel packets' header
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* exchanged between kernel and linecard. All fields are in network byte order.
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* This header follow the Linux cooked-mode capture(SLL) and will call REDBACK
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* dissector.
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*
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* IPOS is the network operating system running on a few Ericsson platforms
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* including SSR 8000 routers, Router 6000 series, and SP routers.
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*
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* Product details for Ericsson's IP Metro and Backhaul routers using IPOS:
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* http://www.ericsson.com/ourportfolio/products/ip-metro-and-backhaul
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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/expert.h>
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void proto_reg_handoff_ipos(void);
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void proto_register_ipos(void);
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static dissector_handle_t ipos_handle;
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static dissector_handle_t redback_handle;
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static int proto_ipos = -1;
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static int hf_ipos_protocol = -1;
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static int hf_ipos_priority = -1;
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static int hf_ipos_ppe = -1;
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static int hf_ipos_slot = -1;
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static gint ett_ipos = -1;
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static expert_field ei_ipos_protocol = EI_INIT;
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#define LINUX_SLL_P_IPOS_NETIPC 0x0030 /* IPOS IPC frames to/from AF_IPC module */
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#define LINUX_SLL_P_IPOS_RBN 0x0031 /* IPOS IP frames to/from CTX module */
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#define LINUX_SLL_P_IPOS_NETLINK 0x0032 /* IPOS data frames to/from AF_RBN_NETLINK module */
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#define LINUX_SLL_P_IPOS_XCRP 0x0033 /* IPOS data frames to/from XCRP driver */
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#define LINUX_SLL_P_IPOS_ISIS 0x0034 /* IPOS data frames to/from ISIS module */
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#define LINUX_SLL_P_IPOS_PAKIO 0x0035 /* IPOS data frames to/from AF_RBN_PAKIO module */
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static const value_string prototypenames[] = {
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{ 0, "L2 Protocol" },
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{ 1, "L3 Protocol" },
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{ 2, "Control (IPC) message" },
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{ 3, "ISIS packet" },
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{ 4, "PAKIO packet" },
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{ 0, NULL }
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};
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static const value_string ppetypenames[] = {
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{ 4, "Output PPA" },
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{ 6, "Input PPA" },
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{ 10, "SPPA" },
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{ 0, NULL }
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};
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/**
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* Dissect a buffer containing IPOS kernel packet bit string.
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*
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* @param tvb The buffer to dissect.
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* @param pinfo Packet Info.
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* @param tree The protocol tree.
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**/
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static int
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dissect_ipos(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_item *ti = NULL;
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proto_tree *ipos_tree = NULL;
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tvbuff_t *next_tvb;
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int offset = 0;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPOS");
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col_clear(pinfo->cinfo, COL_INFO);
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if (tree) {
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ti = proto_tree_add_item(tree, proto_ipos, tvb, 0, -1, ENC_NA);
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ipos_tree = proto_item_add_subtree(ti, ett_ipos);
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proto_tree_add_item(ipos_tree, hf_ipos_protocol, tvb, offset, 1, ENC_BIG_ENDIAN);
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proto_tree_add_item(ipos_tree, hf_ipos_priority, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(ipos_tree, hf_ipos_ppe, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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proto_tree_add_item(ipos_tree, hf_ipos_slot, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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}
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if (redback_handle) {
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next_tvb = tvb_new_subset_remaining(tvb, offset);
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call_dissector(redback_handle, next_tvb, pinfo, tree);
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}
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return tvb_reported_length(tvb);
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}
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void
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proto_register_ipos(void)
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{
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static hf_register_info hf[] = {
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{ &hf_ipos_protocol,
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{ "Protocol", "ipos.proto", FT_UINT8, BASE_DEC, VALS(prototypenames), 0xF0,
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NULL, HFILL }},
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{ &hf_ipos_priority,
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{ "Priority", "ipos.priority", FT_UINT8, BASE_DEC, NULL, 0x0F,
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NULL, HFILL }},
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{ &hf_ipos_ppe,
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{ "Packet Processing Engine", "ipos.ppe", FT_UINT8, BASE_HEX, VALS(ppetypenames), 0x0,
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NULL, HFILL }},
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{ &hf_ipos_slot,
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{ "Destination (source) Slot", "ipos.slot", FT_UINT16, BASE_DEC, NULL, 0x0,
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NULL, HFILL }}
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};
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static gint *ett[] = {
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&ett_ipos
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};
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static ei_register_info ei[] = {
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{ &ei_ipos_protocol,
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{ "ipos.protocol.unknown", PI_PROTOCOL, PI_WARN,
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"Unknown Protocol Data", EXPFILL }}
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};
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expert_module_t* expert_ipos;
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proto_ipos = proto_register_protocol("IPOS Kernel Packet Protocol", "IPOS", "ipos");
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proto_register_field_array(proto_ipos, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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expert_ipos = expert_register_protocol(proto_ipos);
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expert_register_field_array(expert_ipos, ei, array_length(ei));
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register_dissector("ipos", dissect_ipos, proto_ipos);
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}
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void
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proto_reg_handoff_ipos(void)
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{
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ipos_handle = find_dissector("ipos");
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2016-03-16 13:02:52 +00:00
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redback_handle = find_dissector_add_dependency("redback", proto_ipos);
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2016-01-14 00:07:12 +00:00
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/*dissector_add_uint("wtap_encap", WTAP_ENCAP_IPOS, ipos_handle); */
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dissector_add_uint("sll.ltype", LINUX_SLL_P_IPOS_NETIPC, ipos_handle);
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dissector_add_uint("sll.ltype", LINUX_SLL_P_IPOS_RBN, ipos_handle);
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dissector_add_uint("sll.ltype", LINUX_SLL_P_IPOS_NETLINK, ipos_handle);
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dissector_add_uint("sll.ltype", LINUX_SLL_P_IPOS_XCRP, ipos_handle);
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dissector_add_uint("sll.ltype", LINUX_SLL_P_IPOS_ISIS, ipos_handle);
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dissector_add_uint("sll.ltype", LINUX_SLL_P_IPOS_PAKIO, ipos_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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