2003-04-23 00:24:38 +00:00
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/* packet-ipmi.c
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2008-08-07 19:33:40 +00:00
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* Routines for IPMI dissection
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* Copyright 2002-2008, Alexey Neyman, Pigeon Point Systems <avn@pigeonpoint.com>
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2003-04-23 00:24:38 +00:00
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*
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2004-07-18 00:24:25 +00:00
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* $Id$
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2003-04-23 00:24:38 +00:00
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*
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2006-05-21 04:49:01 +00:00
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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2003-04-23 00:24:38 +00:00
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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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2008-08-07 19:33:40 +00:00
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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2003-04-23 00:24:38 +00:00
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*/
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#ifdef HAVE_CONFIG_H
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2008-08-07 19:33:40 +00:00
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#include "config.h"
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2003-04-23 00:24:38 +00:00
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#endif
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2008-08-07 19:33:40 +00:00
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#include <string.h>
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#include <time.h>
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#include <math.h>
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2003-04-23 00:24:38 +00:00
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2012-05-04 21:29:00 +00:00
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#include <epan/packet.h>
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2008-08-07 19:33:40 +00:00
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#include <epan/conversation.h>
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#include <epan/emem.h>
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#include <epan/to_str.h>
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#include <epan/prefs.h>
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#include <epan/addr_resolv.h>
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2003-04-23 00:24:38 +00:00
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2008-08-07 19:33:40 +00:00
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#include "packet-ipmi.h"
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2003-04-23 00:24:38 +00:00
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2008-08-07 20:58:27 +00:00
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/*
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* See the IPMI specifications at
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*
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* http://www.intel.com/design/servers/ipmi/
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*/
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2008-08-07 19:33:40 +00:00
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/* Define IPMI_DEBUG to enable printing the process of request-response pairing */
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/* #define IPMI_DEBUG */
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2003-04-23 00:24:38 +00:00
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2008-08-07 19:33:40 +00:00
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/* Top-level search structure: list of registered handlers for a given netFn */
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struct ipmi_netfn_root {
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ipmi_netfn_t *list;
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const char *desc;
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guint32 siglen;
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2003-04-23 00:24:38 +00:00
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};
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2008-08-07 19:33:40 +00:00
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#define NSAVED_DATA 2
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2006-12-10 22:58:55 +00:00
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2010-05-13 18:28:34 +00:00
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/* We need more than a conversation. Over the same RMCP session
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2008-08-07 19:33:40 +00:00
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(or IPMB), there may be several addresses/SWIDs. Thus, in a single
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2009-04-08 13:07:21 +00:00
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Wireshark-maintained conversation we might need to find our own... */
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2008-08-07 19:33:40 +00:00
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struct ipmi_saved_data {
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guint32 set_data;
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guint32 saved_data[NSAVED_DATA];
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2006-12-10 22:58:55 +00:00
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};
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2008-08-07 19:33:40 +00:00
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enum {
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RQ = 0,
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RS,
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RS2,
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2006-12-10 22:58:55 +00:00
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2008-08-07 19:33:40 +00:00
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MAX_RQRS_FRAMES
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2003-04-23 00:24:38 +00:00
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};
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2008-08-07 19:33:40 +00:00
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enum {
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MSGFMT_NONE = 0,
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MSGFMT_IPMB,
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MSGFMT_LAN,
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MSGFMT_GUESS
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2003-04-23 00:24:38 +00:00
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};
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2008-08-07 19:33:40 +00:00
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struct ipmi_reqresp {
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struct ipmi_reqresp *next;
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struct ipmi_saved_data *data;
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int (*whichresponse)(struct ipmi_header *hdr, struct ipmi_reqresp *rr);
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struct {
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guint32 num;
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nstime_t time;
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} frames[MAX_RQRS_FRAMES];
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guint8 netfn;
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guint8 cmd;
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2006-12-10 22:58:55 +00:00
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};
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2008-08-07 19:33:40 +00:00
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struct ipmi_keyhead {
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struct ipmi_reqresp *rr;
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2003-04-23 00:24:38 +00:00
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};
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2008-08-07 19:33:40 +00:00
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struct ipmi_keytree {
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emem_tree_t *heads;
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2003-04-23 00:24:38 +00:00
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};
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2008-08-07 19:33:40 +00:00
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struct ipmi_parse_typelen {
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void (*get_len)(guint *, guint *, tvbuff_t *, guint, guint, gboolean);
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void (*parse)(char *, tvbuff_t *, guint, guint);
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const char *desc;
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2003-04-23 00:24:38 +00:00
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};
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2008-08-07 19:33:40 +00:00
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struct ipmi_header *ipmi_current_hdr;
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2003-04-23 00:24:38 +00:00
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2008-08-07 19:33:40 +00:00
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static gint proto_ipmi = -1;
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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static gboolean fru_langcode_is_english = TRUE;
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static guint response_after_req = 5000;
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static guint response_before_req = 0;
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static guint message_format = MSGFMT_GUESS;
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static guint selected_oem = IPMI_OEM_NONE;
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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static gint hf_ipmi_message = -1;
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static gint hf_ipmi_session_handle = -1;
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static gint hf_ipmi_header_broadcast = -1;
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2010-05-13 18:28:34 +00:00
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static gint hf_ipmi_header_trg = -1;
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2008-08-07 19:33:40 +00:00
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static gint hf_ipmi_header_trg_lun = -1;
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2010-05-13 18:28:34 +00:00
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static gint hf_ipmi_header_netfn = -1;
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2008-08-07 19:33:40 +00:00
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static gint hf_ipmi_header_crc = -1;
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static gint hf_ipmi_header_src = -1;
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static gint hf_ipmi_header_src_lun = -1;
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static gint hf_ipmi_header_sequence = -1;
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static gint hf_ipmi_header_command = -1;
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static gint hf_ipmi_header_completion = -1;
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static gint hf_ipmi_header_sig = -1;
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static gint hf_ipmi_data_crc = -1;
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static gint hf_ipmi_response_to = -1;
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static gint hf_ipmi_response_in = -1;
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static gint hf_ipmi_response_time = -1;
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static gint hf_ipmi_bad_checksum = -1;
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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static gint ett_ipmi = -1;
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static gint ett_header = -1;
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static gint ett_header_byte_1 = -1;
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static gint ett_header_byte_4 = -1;
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static gint ett_data = -1;
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static gint ett_typelen = -1;
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static guint nest_level;
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static packet_info *current_pinfo;
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static struct ipmi_saved_data *current_saved_data;
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static struct ipmi_netfn_root ipmi_cmd_tab[IPMI_NETFN_MAX];
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/* Debug support */
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static void
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debug_printf(const gchar *fmt _U_, ...)
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{
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#if defined(IPMI_DEBUG)
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va_list ap;
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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#endif
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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/* ----------------------------------------------------------------
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Support for request-response caching.
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---------------------------------------------------------------- */
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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/* Key generation; returns the same key for requests and responses */
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static guint32
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makekey(struct ipmi_header *hdr)
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{
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guint32 trg, src, res;
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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trg = (hdr->trg_sa << 2) | hdr->trg_lun;
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src = (hdr->src_sa << 2) | hdr->src_lun;
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res = trg < src ? (trg << 10) | src : (src << 10) | trg;
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return (hdr->seq << 20) | res;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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static struct ipmi_reqresp *
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key_lookup_reqresp(struct ipmi_keyhead *kh, struct ipmi_header *hdr, frame_data *fd)
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{
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struct ipmi_reqresp *rr, *best_rr = NULL;
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nstime_t delta;
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double d, best_d = (double)(2 * response_after_req);
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guint8 netfn = hdr->netfn & 0x3e; /* disregard 'response' bit */
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guint8 is_resp = hdr->netfn & 0x01;
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int i;
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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/* Source/target SA/LUN and sequence number are assumed to match; se_tree*
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ensure that. While checking for "being here", we can't rely on flags.visited,
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as we may have more than one IPMI message in a single frame. */
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for (rr = kh->rr; rr; rr = rr->next) {
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if (rr->netfn != netfn || rr->cmd != hdr->cmd) {
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continue;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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for (i = 0; i < MAX_RQRS_FRAMES; i++) {
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/* RQ=0 - 0th element is request frame number; RS/RS2 -
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responses are non zero */
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if (((!i) ^ is_resp) && rr->frames[i].num == fd->num) {
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/* Already been here */
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return rr;
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}
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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/* Reject responses before requests or more than 5 seconds ahead */
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if (is_resp) {
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nstime_delta(&delta, &fd->abs_ts, &rr->frames[RQ].time);
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} else {
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/* Use RS here, not RS2 - frames[RS] is always filled if we had
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at least one response */ /* TBD */
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nstime_delta(&delta, &rr->frames[RS].time, &fd->abs_ts);
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}
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d = nstime_to_msec(&delta);
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if (d < -(double)response_before_req || d > (double)response_after_req) {
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continue;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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if (fabs(d) < best_d) {
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best_rr = rr;
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best_d = fabs(d);
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}
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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return best_rr;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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static void
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key_insert_reqresp(struct ipmi_keyhead *kh, struct ipmi_reqresp *rr)
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{
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/* Insert to head, so that the search would find most recent response */
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rr->next = kh->rr;
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kh->rr = rr;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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static inline gboolean
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set_framenums(struct ipmi_header *hdr, struct ipmi_reqresp *rr, frame_data *fd)
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{
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int which = hdr->netfn & 0x01 ? rr->whichresponse ? rr->whichresponse(hdr, rr) : RS : RQ;
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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if (rr->frames[which].num && rr->frames[which].num != fd->num) {
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return FALSE;
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}
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rr->frames[which].num = fd->num;
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rr->frames[which].time = fd->abs_ts;
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return TRUE;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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#define IS_SENDMSG(hdr) (((hdr)->netfn & 0x3e) == IPMI_APP_REQ && (hdr)->cmd == 0x34)
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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int
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ipmi_sendmsg_whichresponse(struct ipmi_header *hdr, struct ipmi_reqresp *rr)
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{
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if (!IS_SENDMSG(hdr)) {
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/* Not a Send Message: just a simple response */
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return RS;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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if (hdr->data_len > 0) {
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/* Trivial case: response with non-null data can only be a
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response in AMC.0 style */
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return RS2;
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}
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/* Otherwise, we need to somehow determine 1st and 2nd responses. Note
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that both them may lack the data - in case that the embedded response
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returned with error. Thus, employ the following algo:
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- First, assign to [RS] frame (this also won't conflict with full response
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received - it could only happen if send message succeeded)
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- In case we see another data-less response, see that we assign the one
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with success completion code to [RS] and with non-success code to [RS2].
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We assume that we can't receive 2 responses with non-successful completion
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(if the outmost Send Message failed, how was the embedded one sent?)
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*/
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if (!rr->frames[RS].num) {
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return RS;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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/* In case we received "success", move the other response to [RS2] */
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if (!hdr->ccode) {
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if (!rr->frames[RS2].num) {
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rr->frames[RS2] = rr->frames[RS];
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}
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return RS;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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/* [RS] occupied, non-successful */
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return RS2;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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int
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ipmi_sendmsg_otheridx(struct ipmi_header *hdr)
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{
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return IS_SENDMSG(hdr) ? nest_level : RS;
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}
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2004-11-24 03:54:40 +00:00
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2008-08-07 19:33:40 +00:00
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struct ipmi_header *
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|
|
ipmi_sendmsg_getheaders(struct ipmi_header *base, void *arg, guint i)
|
|
|
|
{
|
|
|
|
static struct ipmi_header hdr;
|
|
|
|
struct ipmi_header *wrapper = arg;
|
|
|
|
|
|
|
|
/* The problem stems from the fact that the original IPMI
|
|
|
|
specification (before errata came) did not specify the response
|
|
|
|
to Send Message (and even the fact that there are 2 responses -
|
|
|
|
to Send Message and to embedded command). Even then, there is
|
|
|
|
one vagueness remaining - whether the response should use
|
|
|
|
the sequence number from the wrapper or from the embedded message.
|
|
|
|
|
|
|
|
Thus, there are 3 types of responses to Send Message
|
|
|
|
|
|
|
|
* AMC.0-style: the response is embedded in a normal Send Message
|
|
|
|
response. Easiest case: such responses will be correctly detected
|
|
|
|
with the default code in ipmi_do_dissect.
|
|
|
|
|
|
|
|
* IPMI-style, with both variants of sequence numbers. Note that
|
|
|
|
most tools dealing with Send Message (e.g. ipmitool) circumvent
|
|
|
|
this vagueness by using the same sequence number in both wrapper
|
|
|
|
and embedded messages. If we detect such "smart" messages, we
|
|
|
|
provide only one extra header. For correctness, we have to provide
|
|
|
|
for both variants, however.
|
|
|
|
*/
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (i >= 2 || (i == 1 && wrapper->seq == base->seq)) {
|
|
|
|
return NULL;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Construct hybrid header */
|
|
|
|
hdr.trg_sa = wrapper->trg_sa;
|
|
|
|
hdr.trg_lun = wrapper->trg_lun;
|
|
|
|
hdr.src_sa = wrapper->src_sa;
|
|
|
|
hdr.src_lun = wrapper->src_lun;
|
|
|
|
hdr.netfn = base->netfn;
|
|
|
|
hdr.cmd = base->cmd;
|
|
|
|
hdr.seq = i ? base->seq : wrapper->seq;
|
|
|
|
hdr.ccode = base->ccode;
|
|
|
|
hdr.data_len = base->data_len;
|
|
|
|
return &hdr;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
maybe_insert_reqresp(ipmi_dissect_format_t *dfmt, struct ipmi_header *hdr)
|
|
|
|
{
|
|
|
|
conversation_t *cnv;
|
|
|
|
struct ipmi_keytree *kt;
|
|
|
|
struct ipmi_keyhead *kh;
|
|
|
|
struct ipmi_reqresp *rr;
|
|
|
|
guint32 key, i;
|
|
|
|
|
2010-05-13 18:28:34 +00:00
|
|
|
cnv = find_or_create_conversation(current_pinfo);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
kt = conversation_get_proto_data(cnv, proto_ipmi);
|
|
|
|
if (!kt) {
|
|
|
|
kt = se_alloc(sizeof(struct ipmi_keytree));
|
|
|
|
kt->heads = se_tree_create_non_persistent(EMEM_TREE_TYPE_RED_BLACK,
|
|
|
|
"ipmi_key_heads");
|
|
|
|
conversation_add_proto_data(cnv, proto_ipmi, kt);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
debug_printf("--> maybe_insert_reqresp( %d )\n", current_pinfo->fd->num);
|
|
|
|
i = 0;
|
|
|
|
do {
|
|
|
|
debug_printf("Checking [ (%02x,%1x <-> %02x,%1x : %02x) %02x %02x ]\n",
|
|
|
|
hdr->trg_sa, hdr->trg_lun, hdr->src_sa, hdr->src_lun, hdr->seq,
|
|
|
|
hdr->netfn, hdr->cmd);
|
|
|
|
key = makekey(hdr);
|
|
|
|
kh = se_tree_lookup32(kt->heads, key);
|
|
|
|
if (!kh) {
|
|
|
|
kh = se_alloc0(sizeof(struct ipmi_keyhead));
|
|
|
|
se_tree_insert32(kt->heads, key, kh);
|
|
|
|
}
|
|
|
|
if ((rr = key_lookup_reqresp(kh, hdr, current_pinfo->fd)) != NULL) {
|
|
|
|
/* Already recorded - set frame number and be done. Look no
|
|
|
|
further - even if there are several responses, we have
|
|
|
|
found the right one. */
|
|
|
|
debug_printf("Found existing [ <%d,%d,%d> (%02x,%1x <-> %02x,%1x : %02x) %02x %02x ]\n",
|
|
|
|
rr->frames[0].num, rr->frames[1].num, rr->frames[2].num,
|
|
|
|
hdr->trg_sa, hdr->trg_lun, hdr->src_sa, hdr->src_lun, hdr->seq,
|
|
|
|
rr->netfn, rr->cmd);
|
|
|
|
if (!rr->whichresponse) {
|
|
|
|
rr->whichresponse = dfmt->whichresponse;
|
|
|
|
}
|
|
|
|
if (set_framenums(hdr, rr, current_pinfo->fd)) {
|
|
|
|
debug_printf("Set frames [ <%d,%d,%d> (%02x,%1x <-> %02x,%1x : %02x) %02x %02x ]\n",
|
|
|
|
rr->frames[0].num, rr->frames[1].num, rr->frames[2].num,
|
|
|
|
hdr->trg_sa, hdr->trg_lun, hdr->src_sa, hdr->src_lun, hdr->seq,
|
|
|
|
rr->netfn, rr->cmd);
|
|
|
|
current_saved_data = rr->data;
|
|
|
|
return;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Found, but already occupied. Fall through to allocating the structures */
|
|
|
|
current_saved_data = NULL;
|
|
|
|
}
|
|
|
|
/* Not found; allocate new structures */
|
|
|
|
if (!current_saved_data) {
|
|
|
|
/* One 'ipmi_saved_data' for all 'ipmi_req_resp' allocated */
|
|
|
|
current_saved_data = se_alloc0(sizeof(struct ipmi_saved_data));
|
|
|
|
}
|
|
|
|
rr = se_alloc0(sizeof(struct ipmi_reqresp));
|
|
|
|
rr->whichresponse = dfmt->whichresponse;
|
|
|
|
rr->netfn = hdr->netfn & 0x3e;
|
|
|
|
rr->cmd = hdr->cmd;
|
|
|
|
rr->data = current_saved_data;
|
|
|
|
set_framenums(hdr, rr, current_pinfo->fd);
|
|
|
|
key_insert_reqresp(kh, rr);
|
|
|
|
debug_printf("Inserted [ <%d,%d,%d> (%02x,%1x <-> %02x,%1x : %02x) %02x %02x ]\n",
|
|
|
|
rr->frames[0].num, rr->frames[1].num, rr->frames[2].num,
|
|
|
|
hdr->trg_sa, hdr->trg_lun, hdr->src_sa, hdr->src_lun, hdr->seq,
|
|
|
|
rr->netfn, rr->cmd);
|
|
|
|
|
|
|
|
/* Do we have other headers to insert? */
|
|
|
|
hdr = dfmt->getmoreheaders ? dfmt->getmoreheaders(hdr, dfmt->arg, i++) : NULL;
|
|
|
|
} while (hdr);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
add_reqresp_info(ipmi_dissect_format_t *dfmt, struct ipmi_header *hdr, proto_tree *tree, tvbuff_t *tvb)
|
|
|
|
{
|
|
|
|
conversation_t *cnv;
|
|
|
|
struct ipmi_keytree *kt;
|
|
|
|
struct ipmi_keyhead *kh;
|
|
|
|
struct ipmi_reqresp *rr = NULL;
|
|
|
|
guint32 key, i, other_idx;
|
|
|
|
proto_item *ti;
|
|
|
|
nstime_t ns;
|
|
|
|
|
|
|
|
debug_printf("--> add_reqresp_info( %d )\n", current_pinfo->fd->num);
|
|
|
|
|
|
|
|
/* [0] is request; [1..MAX_RS_LEVEL] are responses */
|
|
|
|
other_idx = (hdr->netfn & 0x01) ? RQ : dfmt->otheridx ? dfmt->otheridx(hdr) : RS;
|
|
|
|
|
|
|
|
if (other_idx >= MAX_RQRS_FRAMES) {
|
|
|
|
/* No chance; we don't look that deep into nested Send Message.
|
|
|
|
Note that we'll use the other_idx value to distinguish
|
|
|
|
request from response. */
|
|
|
|
goto fallback;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Here, we don't try to create any object - everything is assumed
|
|
|
|
to be created in maybe_insert_reqresp() */
|
|
|
|
if ((cnv = find_conversation(current_pinfo->fd->num, ¤t_pinfo->src,
|
|
|
|
¤t_pinfo->dst, current_pinfo->ptype,
|
|
|
|
current_pinfo->srcport, current_pinfo->destport, 0)) == NULL) {
|
|
|
|
goto fallback;
|
|
|
|
}
|
|
|
|
if ((kt = conversation_get_proto_data(cnv, proto_ipmi)) == NULL) {
|
|
|
|
goto fallback;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
i = 0;
|
|
|
|
while (1) {
|
|
|
|
debug_printf("Looking for [ (%02x,%1x <-> %02x,%1x : %02x) %02x %02x ]\n",
|
|
|
|
hdr->trg_sa, hdr->trg_lun, hdr->src_sa, hdr->src_lun, hdr->seq,
|
|
|
|
hdr->netfn, hdr->cmd);
|
|
|
|
key = makekey(hdr);
|
|
|
|
if ((kh = se_tree_lookup32(kt->heads, key)) != NULL &&
|
|
|
|
(rr = key_lookup_reqresp(kh, hdr, current_pinfo->fd)) != NULL) {
|
|
|
|
debug_printf("Found [ <%d,%d,%d> (%02x,%1x <-> %02x,%1x : %02x) %02x %02x ]\n",
|
|
|
|
rr->frames[0].num, rr->frames[1].num, rr->frames[2].num,
|
|
|
|
hdr->trg_sa, hdr->trg_lun, hdr->src_sa, hdr->src_lun, hdr->seq,
|
|
|
|
rr->netfn, rr->cmd);
|
|
|
|
if (rr->frames[other_idx].num) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Do we have other headers to check? */
|
|
|
|
hdr = dfmt->getmoreheaders ? dfmt->getmoreheaders(hdr, dfmt->arg, i++) : NULL;
|
|
|
|
if (!hdr) {
|
|
|
|
goto fallback;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (hdr->netfn & 0x01) {
|
|
|
|
/* Response */
|
|
|
|
ti = proto_tree_add_uint(tree, hf_ipmi_response_to,
|
|
|
|
tvb, 0, 0, rr->frames[RQ].num);
|
|
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
nstime_delta(&ns, ¤t_pinfo->fd->abs_ts, &rr->frames[RQ].time);
|
|
|
|
ti = proto_tree_add_time(tree, hf_ipmi_response_time,
|
|
|
|
tvb, 0, 0, &ns);
|
|
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
} else {
|
|
|
|
/* Request */
|
|
|
|
ti = proto_tree_add_uint(tree, hf_ipmi_response_in,
|
|
|
|
tvb, 0, 0, rr->frames[other_idx].num);
|
|
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
}
|
|
|
|
return;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
fallback:
|
|
|
|
ti = proto_tree_add_text(tree, tvb, 0, 0, "No corresponding %s",
|
|
|
|
other_idx ? "response" : "request");
|
|
|
|
PROTO_ITEM_SET_GENERATED(ti);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Save data in request, retrieve in response */
|
|
|
|
void
|
|
|
|
ipmi_setsaveddata(guint idx, guint32 val)
|
|
|
|
{
|
|
|
|
DISSECTOR_ASSERT(idx < NSAVED_DATA);
|
|
|
|
current_saved_data->saved_data[idx] = val;
|
|
|
|
current_saved_data->set_data |= (1 << idx);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
gboolean
|
|
|
|
ipmi_getsaveddata(guint idx, guint32 *pval)
|
|
|
|
{
|
|
|
|
DISSECTOR_ASSERT(idx < NSAVED_DATA);
|
|
|
|
if (current_saved_data->set_data & (1 << idx)) {
|
|
|
|
*pval = current_saved_data->saved_data[idx];
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
|
|
return FALSE;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* ----------------------------------------------------------------
|
|
|
|
Support for Type/Length fields parsing.
|
|
|
|
---------------------------------------------------------------- */
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
get_len_binary(guint *clen, guint *blen, tvbuff_t *tvb _U_, guint offs _U_,
|
|
|
|
guint len, gboolean len_is_bytes _U_)
|
|
|
|
{
|
|
|
|
*clen = len * 3;
|
|
|
|
*blen = len;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
parse_binary(char *p, tvbuff_t *tvb, guint offs, guint len)
|
|
|
|
{
|
|
|
|
static const char hex[] = "0123456789ABCDEF";
|
|
|
|
guint8 v;
|
|
|
|
guint i;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
for (i = 0; i < len / 3; i++) {
|
|
|
|
v = tvb_get_guint8(tvb, offs + i);
|
|
|
|
*p++ = hex[v >> 4];
|
|
|
|
*p++ = hex[v & 0xf];
|
|
|
|
*p++ = ' ';
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (i) {
|
|
|
|
*--p = '\0';
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static struct ipmi_parse_typelen ptl_binary = {
|
|
|
|
get_len_binary, parse_binary, "Binary"
|
2004-11-24 03:54:40 +00:00
|
|
|
};
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
get_len_bcdplus(guint *clen, guint *blen, tvbuff_t *tvb _U_, guint offs _U_,
|
|
|
|
guint len, gboolean len_is_bytes)
|
|
|
|
{
|
|
|
|
if (len_is_bytes) {
|
|
|
|
*clen = len * 2;
|
|
|
|
*blen = len;
|
|
|
|
} else {
|
|
|
|
*blen = (len + 1) / 2;
|
|
|
|
*clen = len;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
parse_bcdplus(char *p, tvbuff_t *tvb, guint offs, guint len)
|
|
|
|
{
|
|
|
|
static const char bcd[] = "0123456789 -.:,_";
|
|
|
|
guint i, msk = 0xf0, shft = 4;
|
|
|
|
guint8 v;
|
|
|
|
|
|
|
|
for (i = 0; i < len; i++) {
|
|
|
|
v = (tvb_get_guint8(tvb, offs + i / 2) & msk) >> shft;
|
|
|
|
*p++ = bcd[v];
|
|
|
|
msk ^= 0xff;
|
|
|
|
shft = 4 - shft;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static struct ipmi_parse_typelen ptl_bcdplus = {
|
|
|
|
get_len_bcdplus, parse_bcdplus, "BCD+"
|
2004-11-24 03:54:40 +00:00
|
|
|
};
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
get_len_6bit_ascii(guint *clen, guint *blen, tvbuff_t *tvb _U_, guint offs _U_,
|
|
|
|
guint len, gboolean len_is_bytes)
|
|
|
|
{
|
|
|
|
if (len_is_bytes) {
|
|
|
|
*clen = len * 4 / 3;
|
|
|
|
*blen = len;
|
|
|
|
} else {
|
|
|
|
*blen = (len * 3 + 3) / 4;
|
|
|
|
*clen = len;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
parse_6bit_ascii(char *p, tvbuff_t *tvb, guint offs, guint len)
|
|
|
|
{
|
|
|
|
guint32 v;
|
|
|
|
guint i;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* First, handle "full" triplets of bytes, 4 characters each */
|
|
|
|
for (i = 0; i < len / 4; i++) {
|
|
|
|
v = tvb_get_letoh24(tvb, offs + i * 3);
|
|
|
|
p[0] = ' ' + (v & 0x3f);
|
|
|
|
p[1] = ' ' + ((v >> 6) & 0x3f);
|
|
|
|
p[2] = ' ' + ((v >> 12) & 0x3f);
|
|
|
|
p[3] = ' ' + ((v >> 18) & 0x3f);
|
|
|
|
p += 4;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Do we have any characters left? */
|
|
|
|
offs += len / 4;
|
|
|
|
len &= 0x3;
|
|
|
|
switch (len) {
|
|
|
|
case 3:
|
|
|
|
v = (tvb_get_guint8(tvb, offs + 2) << 4) | (tvb_get_guint8(tvb, offs + 1) >> 4);
|
|
|
|
p[2] = ' ' + (v & 0x3f);
|
|
|
|
/* Fall thru */
|
|
|
|
case 2:
|
|
|
|
v = (tvb_get_guint8(tvb, offs + 1) << 2) | (tvb_get_guint8(tvb, offs) >> 6);
|
|
|
|
p[1] = ' ' + (v & 0x3f);
|
|
|
|
/* Fall thru */
|
|
|
|
case 1:
|
|
|
|
v = tvb_get_guint8(tvb, offs) & 0x3f;
|
|
|
|
p[0] = ' ' + (v & 0x3f);
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static struct ipmi_parse_typelen ptl_6bit_ascii = {
|
|
|
|
get_len_6bit_ascii, parse_6bit_ascii, "6-bit ASCII"
|
2004-11-24 03:54:40 +00:00
|
|
|
};
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
get_len_8bit_ascii(guint *clen, guint *blen, tvbuff_t *tvb, guint offs,
|
|
|
|
guint len, gboolean len_is_bytes _U_)
|
|
|
|
{
|
|
|
|
guint i;
|
|
|
|
guint8 ch;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
*blen = len; /* One byte is one character */
|
|
|
|
*clen = 0;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
|
|
ch = tvb_get_guint8(tvb, offs + i);
|
|
|
|
*clen += (ch >= 0x20 && ch <= 0x7f) ? 1 : 4;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
parse_8bit_ascii(char *p, tvbuff_t *tvb, guint offs, guint len)
|
|
|
|
{
|
|
|
|
guint8 ch;
|
|
|
|
char *pmax;
|
|
|
|
|
|
|
|
pmax = p + len;
|
|
|
|
while (p < pmax) {
|
|
|
|
ch = tvb_get_guint8(tvb, offs++);
|
|
|
|
if (ch >= 0x20 && ch <= 0x7f) {
|
|
|
|
*p++ = ch;
|
|
|
|
} else {
|
|
|
|
g_snprintf(p, 5, "\\x%02x", ch);
|
|
|
|
p += 4;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static struct ipmi_parse_typelen ptl_8bit_ascii = {
|
|
|
|
get_len_8bit_ascii, parse_8bit_ascii, "ASCII+Latin1"
|
2004-11-24 03:54:40 +00:00
|
|
|
};
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
get_len_unicode(guint *clen, guint *blen, tvbuff_t *tvb _U_, guint offs _U_,
|
|
|
|
guint len _U_, gboolean len_is_bytes)
|
|
|
|
{
|
|
|
|
if (len_is_bytes) {
|
|
|
|
*clen = len * 3; /* Each 2 bytes result in 6 chars printed: \Uxxxx */
|
|
|
|
*blen = len;
|
|
|
|
} else {
|
|
|
|
*clen = len * 6;
|
|
|
|
*blen = len * 2;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
parse_unicode(char *p, tvbuff_t *tvb, guint offs, guint len)
|
|
|
|
{
|
|
|
|
char *pmax = p + len;
|
|
|
|
guint8 ch0, ch1;
|
|
|
|
|
|
|
|
while (p < pmax) {
|
|
|
|
ch0 = tvb_get_guint8(tvb, offs++);
|
|
|
|
ch1 = tvb_get_guint8(tvb, offs++);
|
|
|
|
g_snprintf(p, 7, "\\U%02x%02x", ch0, ch1);
|
|
|
|
p += 6;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static struct ipmi_parse_typelen ptl_unicode = {
|
|
|
|
get_len_unicode, parse_unicode, "Unicode"
|
2004-11-24 03:54:40 +00:00
|
|
|
};
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_add_typelen(proto_tree *tree, const char *desc, tvbuff_t *tvb,
|
|
|
|
guint offs, gboolean is_fru)
|
|
|
|
{
|
|
|
|
static struct ipmi_parse_typelen *fru_eng[4] = {
|
|
|
|
&ptl_binary, &ptl_bcdplus, &ptl_6bit_ascii, &ptl_8bit_ascii
|
|
|
|
};
|
|
|
|
static struct ipmi_parse_typelen *fru_noneng[4] = {
|
|
|
|
&ptl_binary, &ptl_bcdplus, &ptl_6bit_ascii, &ptl_unicode
|
|
|
|
};
|
|
|
|
static struct ipmi_parse_typelen *ipmi[4] = {
|
|
|
|
&ptl_unicode, &ptl_bcdplus, &ptl_6bit_ascii, &ptl_8bit_ascii
|
|
|
|
};
|
|
|
|
struct ipmi_parse_typelen *ptr;
|
|
|
|
proto_tree *s_tree;
|
|
|
|
proto_item *ti;
|
|
|
|
guint type, msk, clen, blen, len;
|
|
|
|
const char *unit;
|
|
|
|
char *str;
|
|
|
|
guint8 typelen;
|
|
|
|
|
|
|
|
typelen = tvb_get_guint8(tvb, offs);
|
|
|
|
type = typelen >> 6;
|
|
|
|
if (is_fru) {
|
|
|
|
msk = 0x3f;
|
|
|
|
ptr = (fru_langcode_is_english ? fru_eng : fru_noneng)[type];
|
|
|
|
unit = "bytes";
|
|
|
|
} else {
|
|
|
|
msk = 0x1f;
|
|
|
|
ptr = ipmi[type];
|
|
|
|
unit = "characters";
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
len = typelen & msk;
|
|
|
|
ptr->get_len(&clen, &blen, tvb, offs + 1, len, is_fru);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
str = ep_alloc(clen + 1);
|
|
|
|
ptr->parse(str, tvb, offs + 1, clen);
|
|
|
|
str[clen] = '\0';
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
ti = proto_tree_add_text(tree, tvb, offs, 1, "%s Type/Length byte: %s, %d %s",
|
|
|
|
desc, ptr->desc, len, unit);
|
|
|
|
s_tree = proto_item_add_subtree(ti, ett_typelen);
|
2009-11-09 15:05:34 +00:00
|
|
|
proto_tree_add_text(s_tree, tvb, offs, 1, "%sType: %s (0x%02x)",
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_dcd8(typelen, 0xc0), ptr->desc, type);
|
2009-11-09 15:05:34 +00:00
|
|
|
proto_tree_add_text(s_tree, tvb, offs, 1, "%sLength: %d %s",
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_dcd8(typelen, msk), len, unit);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
proto_tree_add_text(tree, tvb, offs + 1, blen, "%s: [%s] '%s'",
|
|
|
|
desc, ptr->desc, str);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* ----------------------------------------------------------------
|
|
|
|
Timestamp, IPMI-style.
|
|
|
|
---------------------------------------------------------------- */
|
|
|
|
void
|
|
|
|
ipmi_add_timestamp(proto_tree *tree, gint hf, tvbuff_t *tvb, guint offset)
|
|
|
|
{
|
|
|
|
guint32 ts = tvb_get_letohl(tvb, offset);
|
|
|
|
|
|
|
|
if (ts == 0xffffffff) {
|
|
|
|
proto_tree_add_uint_format_value(tree, hf, tvb, offset, 4,
|
|
|
|
ts, "Unspecified/Invalid");
|
|
|
|
} else if (ts <= 0x20000000) {
|
|
|
|
proto_tree_add_uint_format_value(tree, hf, tvb, offset, 4,
|
2009-12-10 20:48:31 +00:00
|
|
|
ts, "%s since SEL device's initialization",
|
|
|
|
time_secs_to_str_unsigned(ts));
|
2008-08-07 19:33:40 +00:00
|
|
|
} else {
|
|
|
|
proto_tree_add_uint_format_value(tree, hf, tvb, offset, 4,
|
2010-05-21 06:33:25 +00:00
|
|
|
ts, "%s", abs_time_secs_to_str(ts, ABSOLUTE_TIME_UTC, TRUE));
|
2008-08-07 19:33:40 +00:00
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* ----------------------------------------------------------------
|
|
|
|
GUID, IPMI-style.
|
|
|
|
---------------------------------------------------------------- */
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_add_guid(proto_tree *tree, gint hf, tvbuff_t *tvb, guint offset)
|
|
|
|
{
|
|
|
|
e_guid_t guid;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
guid.data1 = tvb_get_letohl(tvb, offset + 12);
|
|
|
|
guid.data2 = tvb_get_letohs(tvb, offset + 10);
|
|
|
|
guid.data3 = tvb_get_letohs(tvb, offset + 8);
|
|
|
|
for (i = 0; i < 8; i++) {
|
|
|
|
guid.data4[i] = tvb_get_guint8(tvb, offset + 7 - i);
|
|
|
|
}
|
|
|
|
proto_tree_add_guid(tree, hf, tvb, offset, 16, &guid);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* ----------------------------------------------------------------
|
|
|
|
Routines for registering/looking up command parsers.
|
|
|
|
---------------------------------------------------------------- */
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
static void
|
|
|
|
ipmi_netfn_setdesc(guint32 netfn, const char *desc, guint32 siglen)
|
|
|
|
{
|
|
|
|
struct ipmi_netfn_root *inr;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
inr = &ipmi_cmd_tab[netfn >> 1];
|
|
|
|
inr->desc = desc;
|
|
|
|
inr->siglen = siglen;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_register_netfn_cmdtab(guint32 netfn, guint oem_selector,
|
|
|
|
const guint8 *sig, guint32 siglen, const char *desc,
|
|
|
|
ipmi_cmd_t *cmdtab, guint32 cmdtablen)
|
|
|
|
{
|
|
|
|
struct ipmi_netfn_root *inr;
|
|
|
|
ipmi_netfn_t *inh;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
netfn >>= 1; /* Requests and responses grouped together */
|
|
|
|
if (netfn >= IPMI_NETFN_MAX) {
|
|
|
|
g_warning("NetFn too large: %x", netfn * 2);
|
|
|
|
return;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
inr = &ipmi_cmd_tab[netfn];
|
|
|
|
if (inr->siglen != siglen) {
|
|
|
|
/* All handlers per netFn should have the same signature length */
|
|
|
|
g_warning("NetFn %d: different signature lengths: %d vs %d",
|
|
|
|
netfn * 2, inr->siglen, siglen);
|
|
|
|
return;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
inh = g_malloc(sizeof(struct ipmi_netfn_handler));
|
|
|
|
inh->desc = desc;
|
|
|
|
inh->oem_selector = oem_selector;
|
|
|
|
inh->sig = sig;
|
|
|
|
inh->cmdtab = cmdtab;
|
|
|
|
inh->cmdtablen = cmdtablen;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
inh->next = inr->list;
|
|
|
|
inr->list = inh;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
guint32
|
|
|
|
ipmi_getsiglen(guint32 netfn)
|
|
|
|
{
|
|
|
|
return ipmi_cmd_tab[netfn >> 1].siglen;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
const char *
|
|
|
|
ipmi_getnetfnname(guint32 netfn, ipmi_netfn_t *nf)
|
|
|
|
{
|
|
|
|
const char *dn, *db;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
dn = ipmi_cmd_tab[netfn >> 1].desc ?
|
|
|
|
ipmi_cmd_tab[netfn >> 1].desc : "Reserved";
|
|
|
|
db = nf ? nf->desc : NULL;
|
|
|
|
if (db) {
|
|
|
|
return ep_strdup_printf("%s (%s)", db, dn);
|
|
|
|
} else {
|
|
|
|
return dn;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_netfn_t *
|
|
|
|
ipmi_getnetfn(guint32 netfn, const guint8 *sig)
|
|
|
|
{
|
|
|
|
struct ipmi_netfn_root *inr;
|
|
|
|
ipmi_netfn_t *inh;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
inr = &ipmi_cmd_tab[netfn >> 1];
|
|
|
|
for (inh = inr->list; inh; inh = inh->next) {
|
2010-05-13 18:28:34 +00:00
|
|
|
if ((inh->oem_selector == selected_oem || inh->oem_selector == IPMI_OEM_NONE)
|
2008-08-07 19:33:40 +00:00
|
|
|
&& (!inr->siglen || !memcmp(sig, inh->sig, inr->siglen))) {
|
|
|
|
return inh;
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Either unknown netFn or signature does not match */
|
|
|
|
return NULL;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_cmd_t *
|
|
|
|
ipmi_getcmd(ipmi_netfn_t *nf, guint32 cmd)
|
|
|
|
{
|
|
|
|
static ipmi_cmd_t ipmi_cmd_unknown = {
|
|
|
|
0x00, /* Code */
|
|
|
|
ipmi_notimpl, /* request */
|
|
|
|
ipmi_notimpl, /* response */
|
|
|
|
NULL, /* command codes */
|
|
|
|
NULL, /* subfunctions */
|
|
|
|
"Unknown command",
|
|
|
|
0 /* flag */
|
|
|
|
};
|
|
|
|
ipmi_cmd_t *ic;
|
|
|
|
size_t i, len;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (nf) {
|
|
|
|
len = nf->cmdtablen;
|
|
|
|
for (ic = nf->cmdtab, i = 0; i < len; i++, ic++) {
|
|
|
|
if (ic->cmd == cmd) {
|
|
|
|
return ic;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
return &ipmi_cmd_unknown;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* ----------------------------------------------------------------
|
|
|
|
Various utility functions.
|
|
|
|
---------------------------------------------------------------- */
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_notimpl(tvbuff_t *tvb, proto_tree *tree)
|
|
|
|
{
|
|
|
|
if (tree) {
|
|
|
|
proto_tree_add_text(tree, tvb, 0, -1, "[PARSER NOT IMPLEMENTED]");
|
|
|
|
}
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
char *
|
|
|
|
ipmi_dcd8(guint32 val, guint32 mask)
|
|
|
|
{
|
|
|
|
static char buf[64];
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
decode_bitfield_value(buf, val, mask, 8);
|
|
|
|
return buf;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_10ms_1based(gchar *s, guint32 v)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%d.%03d seconds", v / 100, (v % 100) * 10);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_500ms_0based(gchar *s, guint32 v)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_fmt_500ms_1based(s, ++v);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_500ms_1based(gchar *s, guint32 v)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%d.%03d seconds", v / 2, (v % 2) * 500);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_1s_0based(gchar *s, guint32 v)
|
|
|
|
{
|
|
|
|
ipmi_fmt_1s_1based(s, ++v);
|
|
|
|
}
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_1s_1based(gchar *s, guint32 v)
|
|
|
|
{
|
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%d seconds", v);
|
|
|
|
}
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_2s_0based(gchar *s, guint32 v)
|
|
|
|
{
|
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%d seconds", (v + 1) * 2);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_5s_1based(gchar *s, guint32 v)
|
|
|
|
{
|
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%d seconds", v * 5);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_version(gchar *s, guint32 v)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%d.%d", v & 0x0f, (v >> 4) & 0x0f);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_channel(gchar *s, guint32 v)
|
|
|
|
{
|
|
|
|
static const value_string chan_vals[] = {
|
|
|
|
{ 0x00, "Primary IPMB (IPMB-0)" },
|
|
|
|
{ 0x07, "IPMB-L" },
|
|
|
|
{ 0x0e, "Current channel" },
|
|
|
|
{ 0x0f, "System Interface" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%s (0x%02x)",
|
|
|
|
val_to_str(v, chan_vals, "Channel #%d"), v);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_udpport(gchar *s, guint32 v)
|
|
|
|
{
|
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%s (%d)", get_udp_port(v), v);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
ipmi_fmt_percent(gchar *s, guint32 v)
|
|
|
|
{
|
|
|
|
g_snprintf(s, ITEM_LABEL_LENGTH, "%d%%", v);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
const char *
|
|
|
|
ipmi_get_completion_code(guint8 completion, ipmi_cmd_t *cmd)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
static const value_string std_completion_codes[] = {
|
|
|
|
{ 0x00, "Command Completed Normally" },
|
|
|
|
{ 0xc0, "Node Busy" },
|
|
|
|
{ 0xc1, "Invalid Command" },
|
|
|
|
{ 0xc2, "Command invalid for given LUN" },
|
|
|
|
{ 0xc3, "Timeout while processing command, response unavailable" },
|
|
|
|
{ 0xc4, "Out of space" },
|
|
|
|
{ 0xc5, "Reservation Canceled or Invalid Reservation ID" },
|
|
|
|
{ 0xc6, "Request data truncated" },
|
|
|
|
{ 0xc7, "Request data length invalid" },
|
|
|
|
{ 0xc8, "Request data field length limit exceeded" },
|
|
|
|
{ 0xc9, "Parameter out of range" },
|
|
|
|
{ 0xca, "Cannot return number of requested data bytes" },
|
|
|
|
{ 0xcb, "Requested Sensor, data, or record not present" },
|
|
|
|
{ 0xcc, "Invalid data field in Request" },
|
|
|
|
{ 0xcd, "Command illegal for specified sensor or record type" },
|
|
|
|
{ 0xce, "Command response could not be provided" },
|
|
|
|
{ 0xcf, "Cannot execute duplicated request" },
|
|
|
|
{ 0xd0, "Command response could not be provided: SDR Repository in update mode" },
|
|
|
|
{ 0xd1, "Command response could not be provided: device in firmware update mode" },
|
|
|
|
{ 0xd2, "Command response could not be provided: BMC initialization or initialization agent in progress" },
|
|
|
|
{ 0xd3, "Destination unavailable" },
|
|
|
|
{ 0xd4, "Cannot execute command: insufficient privilege level or other security-based restriction" },
|
|
|
|
{ 0xd5, "Cannot execute command: command, or request parameter(s), not supported in present state" },
|
|
|
|
{ 0xd6, "Cannot execute command: parameter is illegal because subfunction is disabled or unavailable" },
|
|
|
|
{ 0xff, "Unspecified error" },
|
|
|
|
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
const char *res;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (completion >= 0x01 && completion <= 0x7e) {
|
|
|
|
return "Device specific (OEM) completion code";
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2008-08-07 19:33:40 +00:00
|
|
|
|
|
|
|
if (completion >= 0x80 && completion <= 0xbe) {
|
|
|
|
if (cmd && cmd->cs_cc && (res = match_strval(completion, cmd->cs_cc)) != NULL) {
|
|
|
|
return res;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2008-08-07 19:33:40 +00:00
|
|
|
return "Standard command-specific code";
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2012-08-10 22:55:02 +00:00
|
|
|
return val_to_str_const(completion, std_completion_codes, "Unknown");
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Guess the parsing flags for a message
|
|
|
|
*/
|
|
|
|
int
|
|
|
|
ipmi_guess_dissect_flags(tvbuff_t *tvb)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
int i;
|
|
|
|
guint8 buf[6];
|
|
|
|
|
|
|
|
switch (message_format) {
|
|
|
|
case MSGFMT_NONE:
|
|
|
|
return IPMI_D_NONE;
|
|
|
|
case MSGFMT_IPMB:
|
|
|
|
return IPMI_D_TRG_SA;
|
|
|
|
case MSGFMT_LAN:
|
|
|
|
return IPMI_D_TRG_SA|IPMI_D_SESSION_HANDLE;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Try to guess the format */
|
|
|
|
DISSECTOR_ASSERT(message_format == MSGFMT_GUESS);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* 6 is shortest message - Get Message with empty data */
|
|
|
|
if (tvb_length(tvb) < 6) {
|
|
|
|
return IPMI_D_NONE;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Fetch the beginning */
|
|
|
|
for (i = 0; i < 6; i++) {
|
|
|
|
buf[i] = tvb_get_guint8(tvb, i);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if ((buf[0] + buf[1] + buf[2]) % 0x100 == 0) {
|
|
|
|
/* Looks like IPMB: first 3 bytes are zero module 256 */
|
|
|
|
return IPMI_D_TRG_SA;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if ((buf[1] + buf[2] + buf[3]) % 0x100 == 0) {
|
|
|
|
/* Looks like LAN: like IPMB, prepended with extra byte (session handle) */
|
|
|
|
return IPMI_D_TRG_SA|IPMI_D_SESSION_HANDLE;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Can't guess */
|
|
|
|
return IPMI_D_NONE;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Print out IPMB packet.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
ipmi_do_dissect(tvbuff_t *tvb, proto_tree *ipmi_tree, ipmi_dissect_format_t *dfmt)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
proto_tree *hdr_tree, *data_tree, *s_tree;
|
|
|
|
proto_item *ti;
|
|
|
|
tvbuff_t *data_tvb;
|
|
|
|
ipmi_netfn_t *in = NULL;
|
|
|
|
ipmi_cmd_t *ic = NULL;
|
|
|
|
ipmi_cmd_handler_t hnd = NULL;
|
|
|
|
struct ipmi_saved_data *saved_saved_data;
|
|
|
|
struct ipmi_header hdr, *saved_hdr;
|
|
|
|
guint8 hdr_crc, hdr_exp_crc, data_crc, data_exp_crc;
|
2010-07-26 19:00:44 +00:00
|
|
|
guint8 is_resp, is_broadcast = 0, tmp;
|
|
|
|
guint i, len, siglen, hdrlen, offs, data_chk_offs;
|
2008-08-07 19:33:40 +00:00
|
|
|
const char *bcast, *ndesc, *cdesc, *ccdesc;
|
|
|
|
|
|
|
|
if (dfmt->flags & IPMI_D_NONE) {
|
|
|
|
/* No parsing requested */
|
|
|
|
g_snprintf(dfmt->info, ITEM_LABEL_LENGTH, "Unknown message (not parsed)");
|
2011-10-04 22:44:31 +00:00
|
|
|
proto_tree_add_item(ipmi_tree, hf_ipmi_message, tvb, 0, tvb_length(tvb), ENC_NA);
|
2008-08-07 19:33:40 +00:00
|
|
|
return;
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
nest_level++;
|
|
|
|
offs = 0;
|
|
|
|
memset(&hdr, 0, sizeof(hdr));
|
|
|
|
debug_printf("--> do_dissect(%d, nl %u, tree %s null)\n",
|
|
|
|
current_pinfo->fd->num, nest_level, ipmi_tree ? "IS NOT" : "IS");
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Optional byte: in Send Message targeted to session-based channels */
|
|
|
|
if (dfmt->flags & IPMI_D_SESSION_HANDLE) {
|
|
|
|
offs++;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2008-08-07 19:33:40 +00:00
|
|
|
|
|
|
|
/* Optional byte: 00 indicates General Call address - broadcast message */
|
|
|
|
if ((dfmt->flags & IPMI_D_BROADCAST) && tvb_get_guint8(tvb, offs) == 0x00) {
|
|
|
|
is_broadcast = 1;
|
|
|
|
offs++;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Byte 1: target slave address, may be absent (in Get Message) */
|
|
|
|
hdr.trg_sa = (dfmt->flags & IPMI_D_TRG_SA) ? tvb_get_guint8(tvb, offs++) : 0;
|
|
|
|
|
|
|
|
/* Byte 2: network function + target LUN */
|
|
|
|
tmp = tvb_get_guint8(tvb, offs++);
|
|
|
|
hdr.trg_lun = tmp & 0x03;
|
|
|
|
hdr.netfn = (tmp >> 2) & 0x3f;
|
|
|
|
hdr_exp_crc = (0 - hdr.trg_sa - tmp) & 0xff;
|
|
|
|
|
|
|
|
/* Byte 3: header checksum */
|
|
|
|
hdr_crc = tvb_get_guint8(tvb, offs++);
|
|
|
|
|
|
|
|
/* Byte 4: source slave address */
|
|
|
|
hdr.src_sa = tvb_get_guint8(tvb, offs++);
|
|
|
|
|
|
|
|
/* Byte 5: sequence number + source LUN */
|
|
|
|
tmp = tvb_get_guint8(tvb, offs++);
|
|
|
|
hdr.src_lun = tmp & 0x03;
|
|
|
|
hdr.seq = (tmp >> 2) & 0x3f;
|
|
|
|
|
|
|
|
/* Byte 6: command code */
|
|
|
|
hdr.cmd = tvb_get_guint8(tvb, offs++);
|
|
|
|
|
|
|
|
/* Byte 7: completion code (in response) */
|
|
|
|
is_resp = (hdr.netfn & 0x1) ? 1 : 0;
|
|
|
|
hdr.ccode = is_resp ? tvb_get_guint8(tvb, offs++) : 0;
|
|
|
|
|
|
|
|
/* 0-3 bytes: signature of the defining body */
|
|
|
|
siglen = ipmi_getsiglen(hdr.netfn);
|
|
|
|
in = ipmi_getnetfn(hdr.netfn, tvb_get_ptr(tvb, offs, siglen));
|
|
|
|
offs += siglen;
|
|
|
|
|
|
|
|
/* Save header length */
|
|
|
|
hdrlen = offs;
|
|
|
|
hdr.data_len = tvb_length(tvb) - hdrlen - 1;
|
|
|
|
|
|
|
|
/* Get some text descriptions */
|
|
|
|
ic = ipmi_getcmd(in, hdr.cmd);
|
|
|
|
ndesc = ipmi_getnetfnname(hdr.netfn, in);
|
|
|
|
cdesc = ic->desc;
|
|
|
|
ccdesc = ipmi_get_completion_code(hdr.ccode, ic);
|
|
|
|
if (!is_broadcast) {
|
|
|
|
bcast = "";
|
|
|
|
} else if (ic->flags & CMD_MAYBROADCAST) {
|
|
|
|
bcast = " (BROADCAST: command may not be broadcast)";
|
|
|
|
} else {
|
|
|
|
bcast = " (BROADCAST)";
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2010-05-13 18:28:34 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Save globals - we may be called recursively */
|
|
|
|
saved_hdr = ipmi_current_hdr;
|
|
|
|
ipmi_current_hdr = &hdr;
|
|
|
|
saved_saved_data = current_saved_data;
|
|
|
|
current_saved_data = NULL;
|
|
|
|
|
|
|
|
/* Select sub-handler */
|
|
|
|
hnd = is_resp ? ic->parse_resp : ic->parse_req;
|
|
|
|
|
|
|
|
/* Start new conversation if needed */
|
|
|
|
if (!is_resp && (ic->flags & CMD_NEWCONV)) {
|
|
|
|
conversation_new(current_pinfo->fd->num, ¤t_pinfo->src,
|
|
|
|
¤t_pinfo->dst, current_pinfo->ptype,
|
|
|
|
current_pinfo->srcport, current_pinfo->destport, 0);
|
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Check if we need to insert request-response pair */
|
|
|
|
maybe_insert_reqresp(dfmt, &hdr);
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Create data subset: all but header and last byte (checksum) */
|
|
|
|
data_tvb = tvb_new_subset(tvb, hdrlen, hdr.data_len, hdr.data_len);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Brief description of a packet */
|
|
|
|
g_snprintf(dfmt->info, ITEM_LABEL_LENGTH, "%s, %s, seq 0x%02x%s%s%s",
|
|
|
|
is_resp ? "Rsp" : "Req", cdesc, hdr.seq, bcast,
|
|
|
|
hdr.ccode ? ", " : "", hdr.ccode ? ccdesc : "");
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (!is_resp && (ic->flags & CMD_CALLRQ)) {
|
|
|
|
hnd(data_tvb, NULL);
|
|
|
|
}
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (ipmi_tree) {
|
|
|
|
add_reqresp_info(dfmt, &hdr, ipmi_tree, tvb);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
ti = proto_tree_add_text(ipmi_tree, tvb, 0, hdrlen,
|
|
|
|
"Header: %s (%s) from 0x%02x to 0x%02x%s", cdesc,
|
|
|
|
is_resp ? "Response" : "Request", hdr.src_sa, hdr.trg_sa, bcast);
|
|
|
|
hdr_tree = proto_item_add_subtree(ti, ett_header);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
offs = 0;
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (dfmt->flags & IPMI_D_SESSION_HANDLE) {
|
|
|
|
proto_tree_add_item(hdr_tree, hf_ipmi_session_handle,
|
2011-10-06 03:35:44 +00:00
|
|
|
tvb, offs++, 1, ENC_LITTLE_ENDIAN);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Broadcast byte (optional) */
|
|
|
|
if (is_broadcast) {
|
|
|
|
proto_tree_add_uint_format(hdr_tree, hf_ipmi_header_broadcast,
|
|
|
|
tvb, offs++, 1, 0x00, "Broadcast message");
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Target SA, if present */
|
|
|
|
if (dfmt->flags & IPMI_D_TRG_SA) {
|
2011-10-06 03:35:44 +00:00
|
|
|
proto_tree_add_item(hdr_tree, hf_ipmi_header_trg, tvb, offs++, 1, ENC_LITTLE_ENDIAN);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Network function + target LUN */
|
|
|
|
ti = proto_tree_add_text(hdr_tree, tvb, offs, 1,
|
|
|
|
"Target LUN: 0x%02x, NetFN: %s %s (0x%02x)", hdr.trg_lun,
|
|
|
|
ndesc, is_resp ? "Response" : "Request", hdr.netfn);
|
|
|
|
s_tree = proto_item_add_subtree(ti, ett_header_byte_1);
|
2010-05-13 18:28:34 +00:00
|
|
|
|
2011-10-06 03:35:44 +00:00
|
|
|
proto_tree_add_item(s_tree, hf_ipmi_header_trg_lun, tvb, offs, 1, ENC_LITTLE_ENDIAN);
|
2008-08-07 19:33:40 +00:00
|
|
|
proto_tree_add_uint_format(s_tree, hf_ipmi_header_netfn, tvb, offs, 1,
|
|
|
|
hdr.netfn << 2, "%sNetFn: %s %s (0x%02x)",
|
|
|
|
ipmi_dcd8(hdr.netfn << 2, 0xfc),
|
|
|
|
ndesc, is_resp ? "Response" : "Request", hdr.netfn);
|
|
|
|
offs++;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Header checksum */
|
|
|
|
if (hdr_crc == hdr_exp_crc) {
|
|
|
|
proto_tree_add_uint_format(hdr_tree, hf_ipmi_header_crc, tvb, offs++, 1,
|
|
|
|
hdr_crc, "Header checksum: 0x%02x (correct)", hdr_crc);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2008-08-07 19:33:40 +00:00
|
|
|
else {
|
|
|
|
ti = proto_tree_add_boolean(hdr_tree, hf_ipmi_bad_checksum, tvb, 0, 0, TRUE);
|
|
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
|
|
proto_tree_add_uint_format(hdr_tree, hf_ipmi_header_crc, tvb, offs++, 1,
|
|
|
|
hdr_crc, "Header checksum: 0x%02x (incorrect, expected 0x%02x)",
|
|
|
|
hdr_crc, hdr_exp_crc);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Remember where chk2 bytes start */
|
|
|
|
data_chk_offs = offs;
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Source SA */
|
2011-10-06 03:35:44 +00:00
|
|
|
proto_tree_add_item(hdr_tree, hf_ipmi_header_src, tvb, offs++, 1, ENC_LITTLE_ENDIAN);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Sequence number + source LUN */
|
|
|
|
ti = proto_tree_add_text(hdr_tree, tvb, offs, 1,
|
|
|
|
"Source LUN: 0x%02x, SeqNo: 0x%02x",
|
|
|
|
hdr.src_lun, hdr.seq);
|
|
|
|
s_tree = proto_item_add_subtree(ti, ett_header_byte_4);
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2011-10-06 03:35:44 +00:00
|
|
|
proto_tree_add_item(s_tree, hf_ipmi_header_src_lun, tvb, offs, 1, ENC_LITTLE_ENDIAN);
|
|
|
|
proto_tree_add_item(s_tree, hf_ipmi_header_sequence, tvb, offs, 1, ENC_LITTLE_ENDIAN);
|
2008-08-07 19:33:40 +00:00
|
|
|
offs++;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Command */
|
|
|
|
proto_tree_add_uint_format(hdr_tree, hf_ipmi_header_command, tvb, offs++, 1,
|
|
|
|
hdr.cmd, "Command: %s (0x%02x)", cdesc, hdr.cmd);
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Response code (if present) */
|
|
|
|
if (is_resp) {
|
|
|
|
proto_tree_add_uint_format(hdr_tree, hf_ipmi_header_completion, tvb, offs++, 1,
|
|
|
|
hdr.ccode, "Completion code: %s (0x%02x)", ccdesc, hdr.ccode);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Defining body signature (if present) */
|
|
|
|
if (siglen) {
|
2011-10-04 22:44:31 +00:00
|
|
|
ti = proto_tree_add_item(hdr_tree, hf_ipmi_header_sig, tvb, offs, siglen, ENC_NA);
|
2008-08-07 19:33:40 +00:00
|
|
|
proto_item_append_text(ti, " (%s)", ndesc);
|
|
|
|
offs += siglen;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Call data parser */
|
|
|
|
if (tvb_length(data_tvb) && hnd) {
|
|
|
|
ti = proto_tree_add_text(ipmi_tree, data_tvb, 0, -1, "Data");
|
|
|
|
data_tree = proto_item_add_subtree(ti, ett_data);
|
|
|
|
hnd(data_tvb, data_tree);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Checksum all but the last byte */
|
|
|
|
len = tvb_length(tvb) - 1;
|
|
|
|
data_crc = tvb_get_guint8(tvb, len);
|
|
|
|
data_exp_crc = 0;
|
|
|
|
for (i = data_chk_offs; i < len; i++) {
|
|
|
|
data_exp_crc += tvb_get_guint8(tvb, i);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2008-08-07 19:33:40 +00:00
|
|
|
data_exp_crc = (0 - data_exp_crc) & 0xff;
|
2010-05-13 18:28:34 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (data_crc == data_exp_crc) {
|
|
|
|
proto_tree_add_uint_format(ipmi_tree, hf_ipmi_data_crc, tvb, len, 1,
|
|
|
|
data_crc, "Data checksum: 0x%02x (correct)", data_crc);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
ti = proto_tree_add_boolean(hdr_tree, hf_ipmi_bad_checksum, tvb, 0, 0, TRUE);
|
|
|
|
PROTO_ITEM_SET_HIDDEN(ti);
|
|
|
|
proto_tree_add_uint_format(ipmi_tree, hf_ipmi_data_crc, tvb, len, 1,
|
|
|
|
data_crc, "Data checksum: 0x%02x (incorrect, expected 0x%02x)",
|
|
|
|
data_crc, data_exp_crc);
|
2007-07-19 13:05:39 +00:00
|
|
|
}
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Restore globals, in case we've been called recursively */
|
|
|
|
ipmi_current_hdr = saved_hdr;
|
|
|
|
current_saved_data = saved_saved_data;
|
|
|
|
nest_level--;
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2005-08-02 04:31:42 +00:00
|
|
|
static void
|
2008-08-07 19:33:40 +00:00
|
|
|
dissect_ipmi(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
proto_tree *ipmi_tree = NULL;
|
|
|
|
proto_item *ti;
|
|
|
|
ipmi_dissect_format_t dfmt;
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2009-08-09 07:59:51 +00:00
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPMI/ATCA");
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
current_pinfo = pinfo;
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
if (tree) {
|
2011-10-21 02:10:19 +00:00
|
|
|
ti = proto_tree_add_item(tree, proto_ipmi, tvb, 0, -1, ENC_NA);
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_tree = proto_item_add_subtree(ti, ett_ipmi);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
memset(&dfmt, 0, sizeof(dfmt));
|
|
|
|
dfmt.flags = IPMI_D_BROADCAST | IPMI_D_TRG_SA;
|
|
|
|
ipmi_do_dissect(tvb, ipmi_tree, &dfmt);
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2010-01-13 20:25:10 +00:00
|
|
|
col_add_str(pinfo->cinfo, COL_INFO, dfmt.info);
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
/* Register IPMB protocol.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
proto_reg_handoff_ipmi(void)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
void
|
|
|
|
proto_register_ipmi(void)
|
2004-11-24 03:54:40 +00:00
|
|
|
{
|
2008-08-07 19:33:40 +00:00
|
|
|
static hf_register_info hf[] = {
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
{ &hf_ipmi_message, { "Message", "ipmi.message", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_session_handle, { "Session handle", "ipmi.session_handle", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_broadcast, { "Broadcast message", "ipmi.header.broadcast", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_trg, { "Target Address", "ipmi.header.target", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_trg_lun, { "Target LUN", "ipmi.header.trg_lun", FT_UINT8, BASE_HEX, NULL, 0x03, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_netfn, { "NetFN", "ipmi.header.netfn", FT_UINT8, BASE_HEX, NULL, 0xfc, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_crc, { "Header Checksum", "ipmi.header.crc", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_src, { "Source Address", "ipmi.header.source", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_src_lun, { "Source LUN", "ipmi.header.src_lun", FT_UINT8, BASE_HEX, NULL, 0x03, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_sequence, { "Sequence Number", "ipmi.header.sequence", FT_UINT8, BASE_HEX, NULL, 0xfc, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_command, { "Command", "ipmi.header.command", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_completion, { "Completion Code", "ipmi.header.completion", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_header_sig, { "Signature", "ipmi.header.signature", FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_data_crc, { "Data checksum", "ipmi.data.crc", FT_UINT8, BASE_HEX, NULL, 0, NULL, HFILL }},
|
2009-07-07 09:02:59 +00:00
|
|
|
{ &hf_ipmi_response_to, { "Response to", "ipmi.response_to", FT_FRAMENUM, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_response_in, { "Response in", "ipmi.response_in", FT_FRAMENUM, BASE_NONE, NULL, 0, NULL, HFILL }},
|
From Kovarththanan Rajaratnam via bug 3548:
(1) Trailing/leading spaces are removed from 'name's/'blurb's
(2) Duplicate 'blurb's are replaced with NULL
(3) Empty ("") 'blurb's are replaced with NULL
(4) BASE_NONE, NULL, 0x0 are used for 'display', 'strings' and 'bitmask' fields
for FT_NONE, FT_BYTES, FT_IPv4, FT_IPv6, FT_ABSOLUTE_TIME, FT_RELATIVE_TIME,
FT_PROTOCOL, FT_STRING and FT_STRINGZ field types
(5) Only allow non-zero value for 'display' if 'bitmask' is non-zero
svn path=/trunk/; revision=28770
2009-06-18 21:30:42 +00:00
|
|
|
{ &hf_ipmi_response_time, { "Responded in", "ipmi.response_time", FT_RELATIVE_TIME, BASE_NONE, NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_ipmi_bad_checksum, { "Bad checksum", "ipmi.bad_checksum", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL }}
|
2008-08-07 19:33:40 +00:00
|
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_ipmi,
|
|
|
|
&ett_header,
|
|
|
|
&ett_header_byte_1,
|
|
|
|
&ett_header_byte_4,
|
|
|
|
&ett_data,
|
|
|
|
&ett_typelen
|
|
|
|
};
|
|
|
|
static const enum_val_t msgfmt_vals[] = {
|
|
|
|
{ "none", "None", MSGFMT_NONE },
|
|
|
|
{ "ipmb", "IPMB", MSGFMT_IPMB },
|
|
|
|
{ "lan", "Session-based (LAN, ...)", MSGFMT_LAN },
|
|
|
|
{ "guess", "Use heuristics", MSGFMT_GUESS },
|
|
|
|
{ NULL, NULL, 0 }
|
|
|
|
};
|
|
|
|
static const enum_val_t oemsel_vals[] = {
|
|
|
|
{ "none", "None", IPMI_OEM_NONE },
|
|
|
|
{ "pps", "Pigeon Point Systems", IPMI_OEM_PPS },
|
|
|
|
{ NULL, NULL, 0 }
|
|
|
|
};
|
|
|
|
module_t *m;
|
|
|
|
guint32 i;
|
2007-07-19 13:05:39 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
proto_ipmi = proto_register_protocol("Intelligent Platform Management Interface",
|
|
|
|
"IPMI/ATCA",
|
|
|
|
"ipmi");
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
proto_register_field_array(proto_ipmi, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
2004-11-24 03:54:40 +00:00
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_netfn_setdesc(IPMI_CHASSIS_REQ, "Chassis", 0);
|
|
|
|
ipmi_netfn_setdesc(IPMI_BRIDGE_REQ, "Bridge", 0);
|
|
|
|
ipmi_netfn_setdesc(IPMI_SE_REQ, "Sensor/Event", 0);
|
|
|
|
ipmi_netfn_setdesc(IPMI_APP_REQ, "Application", 0);
|
|
|
|
ipmi_netfn_setdesc(IPMI_UPDATE_REQ, "Firmware Update", 0);
|
|
|
|
ipmi_netfn_setdesc(IPMI_STORAGE_REQ, "Storage", 0);
|
|
|
|
ipmi_netfn_setdesc(IPMI_TRANSPORT_REQ, "Transport", 0);
|
|
|
|
ipmi_netfn_setdesc(IPMI_GROUP_REQ, "Group", 1);
|
|
|
|
ipmi_netfn_setdesc(IPMI_OEM_REQ, "OEM/Group", 3);
|
|
|
|
for (i = 0x30; i < 0x40; i += 2) {
|
|
|
|
ipmi_netfn_setdesc(i, "OEM", 0);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|
|
|
|
|
2008-08-07 19:33:40 +00:00
|
|
|
ipmi_register_chassis(proto_ipmi);
|
|
|
|
ipmi_register_bridge(proto_ipmi);
|
|
|
|
ipmi_register_se(proto_ipmi);
|
|
|
|
ipmi_register_app(proto_ipmi);
|
|
|
|
ipmi_register_update(proto_ipmi);
|
|
|
|
ipmi_register_storage(proto_ipmi);
|
|
|
|
ipmi_register_transport(proto_ipmi);
|
|
|
|
ipmi_register_picmg(proto_ipmi);
|
|
|
|
ipmi_register_pps(proto_ipmi);
|
|
|
|
|
|
|
|
register_dissector("ipmi", dissect_ipmi, proto_ipmi);
|
|
|
|
|
|
|
|
m = prefs_register_protocol(proto_ipmi, NULL);
|
|
|
|
prefs_register_bool_preference(m, "fru_langcode_is_english", "FRU Language Code is English",
|
|
|
|
"FRU Language Code is English; strings are ASCII+LATIN1 (vs. Unicode)",
|
|
|
|
&fru_langcode_is_english);
|
|
|
|
prefs_register_uint_preference(m, "response_after_req", "Maximum delay of response message",
|
|
|
|
"Do not search for responses coming after this timeout (milliseconds)",
|
|
|
|
10, &response_after_req);
|
|
|
|
prefs_register_uint_preference(m, "response_before_req", "Response ahead of request",
|
|
|
|
"Allow for responses before requests (milliseconds)",
|
|
|
|
10, &response_before_req);
|
|
|
|
prefs_register_enum_preference(m, "msgfmt", "Format of embedded messages",
|
|
|
|
"Format of messages embedded into Send/Get/Forward Message",
|
|
|
|
&message_format, msgfmt_vals, FALSE);
|
|
|
|
prefs_register_enum_preference(m, "selected_oem", "OEM commands parsed as",
|
|
|
|
"Selects which OEM format is used for commands that IPMI does not define",
|
|
|
|
&selected_oem, oemsel_vals, FALSE);
|
2004-11-24 03:54:40 +00:00
|
|
|
}
|