![Guy Harris](/assets/img/avatar_default.png)
epan/dissectors/packet-ncp2222.inc is a bit hard to fix, so we're not ready to enable that warning by default yet. Throw in some casts to handle GLib routines that take arbitrary non-const pointers (they can later return the pointers, and some callers might want to modify or free up those pointers in cases where they're known to be writable or allocated). Use ep_tvb_memdup() rather than a combination of ep_alloc() and tvb_memcpy(). Clean up some indentation. svn path=/trunk/; revision=25601
1687 lines
50 KiB
C
1687 lines
50 KiB
C
/* packet-mmse.c
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* Routines for MMS Message Encapsulation dissection
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* Copyright 2001, Tom Uijldert <tom.uijldert@cmg.nl>
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* Copyright 2004, Olivier Biot
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*
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* $Id$
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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
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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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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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* ----------
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*
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* Dissector of an encoded Multimedia message PDU, as defined by the WAPForum
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* (http://www.wapforum.org) in "WAP-209-MMSEncapsulation-20020105-a".
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* Subsequent releases of MMS are in control of the Open Mobile Alliance (OMA):
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* Dissection of MMS 1.1 as in OMA-MMS-ENC-v1.1.
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* Dissection of MMS 1.2 as in OMA-MMS-ENC-v1.2 (not finished yet).
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*/
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/* This file has been edited with 8-space tabs and 4-space indentation */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/strutil.h>
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#include "packet-wap.h"
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#include "packet-wsp.h"
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/* #include "packet-mmse.h" */ /* We autoregister */
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#include <epan/emem.h>
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#define MM_QUOTE 0x7F /* Quoted string */
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#define MMS_CONTENT_TYPE 0x3E /* WINA-value for mms-message */
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/* General-purpose debug logger.
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* Requires double parentheses because of variable arguments of printf().
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*
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* Enable debug logging for MMSE by defining AM_CFLAGS
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* so that it contains "-DDEBUG_mmse"
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*/
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#ifdef DEBUG_mmse
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#define DebugLog(x) \
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g_print("%s:%u: ", __FILE__, __LINE__); \
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g_print x
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#else
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#define DebugLog(x) ;
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#endif
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/*
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* Forward declarations
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*/
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static void dissect_mmse_standalone(tvbuff_t *, packet_info *, proto_tree *);
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static void dissect_mmse_encapsulated(tvbuff_t *, packet_info *, proto_tree *);
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static void dissect_mmse(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
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guint8 pdut, const char *message_type);
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/*
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* Header field values
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*/
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/* MMS 1.0 */
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#define MM_BCC_HDR 0x81 /* Bcc */
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#define MM_CC_HDR 0x82 /* Cc */
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#define MM_CLOCATION_HDR 0x83 /* X-Mms-Content-Location */
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#define MM_CTYPE_HDR 0x84 /* Content-Type */
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#define MM_DATE_HDR 0x85 /* Date */
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#define MM_DREPORT_HDR 0x86 /* X-Mms-Delivery-Report */
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#define MM_DTIME_HDR 0x87 /* X-Mms-Delivery-Time */
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#define MM_EXPIRY_HDR 0x88 /* X-Mms-Expiry */
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#define MM_FROM_HDR 0x89 /* From */
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#define MM_MCLASS_HDR 0x8A /* X-Mms-Message-Class */
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#define MM_MID_HDR 0x8B /* Message-ID */
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#define MM_MTYPE_HDR 0x8C /* X-Mms-Message-Type */
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#define MM_VERSION_HDR 0x8D /* X-Mms-MMS-Version */
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#define MM_MSIZE_HDR 0x8E /* X-Mms-Message-Size */
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#define MM_PRIORITY_HDR 0x8F /* X-Mms-Priority */
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#define MM_RREPLY_HDR 0x90 /* X-Mms-Read-Reply */
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#define MM_RALLOWED_HDR 0x91 /* X-Mms-Report-Allowed */
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#define MM_RSTATUS_HDR 0x92 /* X-Mms-Response-Status */
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#define MM_RTEXT_HDR 0x93 /* X-Mms-Response-Text */
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#define MM_SVISIBILITY_HDR 0x94 /* X-Mms-Sender-Visibility */
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#define MM_STATUS_HDR 0x95 /* X-Mms-Status */
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#define MM_SUBJECT_HDR 0x96 /* Subject */
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#define MM_TO_HDR 0x97 /* To */
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#define MM_TID_HDR 0x98 /* X-Mms-Transaction-Id */
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/* MMS 1.1 */
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#define MM_RETRIEVE_STATUS_HDR 0x99 /* X-Mms-Retrieve-Status */
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#define MM_RETRIEVE_TEXT_HDR 0x9A /* X-Mms-Retrieve-Text */
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#define MM_READ_STATUS_HDR 0x9B /* X-Mms-Read-Status */
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#define MM_REPLY_CHARGING_HDR 0x9C /* X-Mms-Reply-Charging */
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#define MM_REPLY_CHARGING_DEADLINE_HDR \
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0x9D /* X-Mms-Reply-Charging-Deadline*/
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#define MM_REPLY_CHARGING_ID_HDR \
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0x9E /* X-Mms-Reply-Charging-ID */
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#define MM_REPLY_CHARGING_SIZE_HDR \
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0x9F /* X-Mms-Reply-Charging-Size */
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#define MM_PREV_SENT_BY_HDR 0xA0 /* X-Mms-Previously-Sent-By */
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#define MM_PREV_SENT_DATE_HDR 0xA1 /* X-Mms-Previously-Sent-Date */
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/* MMS 1.2 */
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#define MM_STORE_HDR 0xA2 /* X-Mms-Store */
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#define MM_MM_STATE_HDR 0xA3 /* X-Mms-MM-State */
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#define MM_MM_FLAGS_HDR 0xA4 /* X-Mms-MM-Flags */
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#define MM_STORE_STATUS_HDR 0xA5 /* X-Mms-Store-Status */
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#define MM_STORE_STATUS_TEXT_HDR \
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0xA6 /* X-Mms-Store-Status-Text */
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#define MM_STORED_HDR 0xA7 /* X-Mms-Stored */
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#define MM_ATTRIBUTES_HDR 0xA8 /* X-Mms-Attributes */
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#define MM_TOTALS_HDR 0xA9 /* X-Mms-Totals */
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#define MM_MBOX_TOTALS_HDR 0xAA /* X-Mms-Mbox-Totals */
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#define MM_QUOTAS_HDR 0xAB /* X-Mms-Quotas */
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#define MM_MBOX_QUOTAS_HDR 0xAC /* X-Mms-Mbox-Quotas */
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#define MM_MBOX_MSG_COUNT_HDR 0xAD /* X-Mms-Message-Count */
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#define MM_CONTENT_HDR 0xAE /* Content */
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#define MM_START_HDR 0xAF /* X-Mms-Start */
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#define MM_ADDITIONAL_HDR 0xB0 /* Additional-headers */
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#define MM_DISTRIBUION_IND_HDR 0xB1 /* X-Mms-Distribution-Indcator */
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#define MM_ELEMENT_DESCR_HDR 0xB2 /* X-Mms-Element-Descriptor */
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#define MM_LIMIT_HDR 0xB3 /* X-Mms-Limit */
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static const value_string vals_mm_header_names[] = {
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/* MMS 1.0 */
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{ MM_BCC_HDR, "Bcc" },
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{ MM_CC_HDR, "Cc" },
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{ MM_CLOCATION_HDR, "X-Mms-Content-Location" },
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{ MM_CTYPE_HDR, "X-Mms-Content-Type" },
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{ MM_DATE_HDR, "Date" },
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{ MM_DREPORT_HDR, "X-Mms-Delivery-Report" },
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{ MM_DTIME_HDR, "X-Mms-Delivery-Time" },
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{ MM_EXPIRY_HDR, "X-Mms-Expiry" },
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{ MM_FROM_HDR, "From" },
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{ MM_MCLASS_HDR, "X-Mms-Message-Class" },
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{ MM_MID_HDR, "Message-ID" },
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{ MM_MTYPE_HDR, "X-Mms-Message-Type" },
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{ MM_VERSION_HDR, "X-Mms-MMS-Version" },
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{ MM_MSIZE_HDR, "X-Mms-Message-Size" },
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{ MM_PRIORITY_HDR, "X-Mms-Priority" },
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{ MM_RREPLY_HDR, "X-Mms-Read-Reply" },
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{ MM_RALLOWED_HDR, "X-Mms-Report-Allowed" },
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{ MM_RSTATUS_HDR, "X-Mms-Response-Status" },
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{ MM_RTEXT_HDR, "X-Mms-Response-Text" },
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{ MM_SVISIBILITY_HDR, "X-Mms-Sender-Visibility" },
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{ MM_STATUS_HDR, "X-Mms-Status" },
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{ MM_SUBJECT_HDR, "Subject" },
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{ MM_TO_HDR, "To" },
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{ MM_TID_HDR, "X-Mms-Transaction-Id" },
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/* MMS 1.1 */
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{ MM_RETRIEVE_STATUS_HDR, "X-Mms-Retrieve-Status" },
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{ MM_RETRIEVE_TEXT_HDR, "X-Mms-Retrieve-Text" },
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{ MM_READ_STATUS_HDR, "X-Mms-Read-Status" },
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{ MM_REPLY_CHARGING_HDR, "X-Mms-Reply-Charging" },
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{ MM_REPLY_CHARGING_DEADLINE_HDR,
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"X-Mms-Reply-Charging-Deadline" },
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{ MM_REPLY_CHARGING_ID_HDR, "X-Mms-Reply-Charging-ID" },
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{ MM_REPLY_CHARGING_SIZE_HDR, "X-Mms-Reply-Charging-Size" },
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{ MM_PREV_SENT_BY_HDR, "X-Mms-Previously-Sent-By" },
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{ MM_PREV_SENT_DATE_HDR, "X-Mms-Previously-Sent-Date" },
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/* MMS 1.2 */
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{ MM_STORE_HDR, "X-Mms-Store" },
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{ MM_MM_STATE_HDR, "X-Mms-MM-State " },
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{ MM_MM_FLAGS_HDR, "X-Mms-MM-Flags " },
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{ MM_STORE_STATUS_HDR, "X-Mms-Store-Status" },
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{ MM_STORE_STATUS_TEXT_HDR, "X-Mms-Store-Status-Text" },
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{ MM_STORED_HDR, "X-Mms-Stored" },
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{ MM_ATTRIBUTES_HDR, "X-Mms-Attributes" },
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{ MM_TOTALS_HDR, "X-Mms-Totals" },
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{ MM_MBOX_TOTALS_HDR, "X-Mms-Mbox-Totals" },
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{ MM_QUOTAS_HDR, "X-Mms-Quotas" },
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{ MM_MBOX_QUOTAS_HDR, "X-Mms-Mbox-Quotas" },
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{ MM_MBOX_MSG_COUNT_HDR, "X-Mms-Message-Count" },
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{ MM_CONTENT_HDR, "Content" },
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{ MM_START_HDR, "X-Mms-Start" },
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{ MM_ADDITIONAL_HDR, "Additional-headers" },
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{ MM_DISTRIBUION_IND_HDR, "X-Mms-Distribution-Indcator" },
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{ MM_ELEMENT_DESCR_HDR, "X-Mms-Element-Descriptor" },
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{ MM_LIMIT_HDR, "X-Mms-Limit" },
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{ 0x00, NULL },
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};
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/*
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* Initialize the protocol and registered fields
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*/
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static int proto_mmse = -1;
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static int hf_mmse_message_type = -1;
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static int hf_mmse_transaction_id = -1;
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static int hf_mmse_mms_version = -1;
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static int hf_mmse_bcc = -1;
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static int hf_mmse_cc = -1;
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static int hf_mmse_content_location = -1;
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static int hf_mmse_date = -1;
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static int hf_mmse_delivery_report = -1;
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static int hf_mmse_delivery_time_abs = -1;
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static int hf_mmse_delivery_time_rel = -1;
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static int hf_mmse_expiry_abs = -1;
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static int hf_mmse_expiry_rel = -1;
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static int hf_mmse_from = -1;
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static int hf_mmse_message_class_id = -1;
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static int hf_mmse_message_class_str = -1;
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static int hf_mmse_message_id = -1;
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static int hf_mmse_message_size = -1;
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static int hf_mmse_priority = -1;
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static int hf_mmse_read_reply = -1;
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static int hf_mmse_report_allowed = -1;
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static int hf_mmse_response_status = -1;
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static int hf_mmse_response_text = -1;
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static int hf_mmse_sender_visibility = -1;
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static int hf_mmse_status = -1;
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static int hf_mmse_subject = -1;
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static int hf_mmse_to = -1;
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static int hf_mmse_content_type = -1;
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static int hf_mmse_ffheader = -1;
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/* MMSE 1.1 */
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static int hf_mmse_read_report = -1;
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static int hf_mmse_retrieve_status = -1;
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static int hf_mmse_retrieve_text = -1;
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static int hf_mmse_read_status = -1;
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static int hf_mmse_reply_charging = -1;
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static int hf_mmse_reply_charging_deadline_abs = -1;
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static int hf_mmse_reply_charging_deadline_rel = -1;
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static int hf_mmse_reply_charging_id = -1;
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static int hf_mmse_reply_charging_size = -1;
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static int hf_mmse_prev_sent_by = -1;
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static int hf_mmse_prev_sent_by_fwd_count = -1;
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static int hf_mmse_prev_sent_by_address = -1;
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static int hf_mmse_prev_sent_date = -1;
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static int hf_mmse_prev_sent_date_fwd_count = -1;
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static int hf_mmse_prev_sent_date_date = -1;
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/*
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* Initialize the subtree pointers
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*/
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static gint ett_mmse = -1;
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static gint ett_mmse_hdr_details = -1;
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/*
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* Valuestrings for PDU types
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*/
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/* MMS 1.0 */
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#define PDU_M_SEND_REQ 0x80
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#define PDU_M_SEND_CONF 0x81
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#define PDU_M_NOTIFICATION_IND 0x82
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#define PDU_M_NOTIFYRESP_IND 0x83
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#define PDU_M_RETRIEVE_CONF 0x84
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#define PDU_M_ACKNOWLEDGE_IND 0x85
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#define PDU_M_DELIVERY_IND 0x86
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/* MMS 1.1 */
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#define PDU_M_READ_REC_IND 0x87
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#define PDU_M_READ_ORIG_IND 0x88
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#define PDU_M_FORWARD_REQ 0x89
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#define PDU_M_FORWARD_CONF 0x8A
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/* MMS 1.2 */
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#define PDU_M_MBOX_STORE_REQ 0x8B
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#define PDU_M_MBOX_STORE_CONF 0x8C
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#define PDU_M_MBOX_VIEW_REQ 0x8D
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#define PDU_M_MBOX_VIEW_CONF 0x8E
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#define PDU_M_MBOX_UPLOAD_REQ 0x8F
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#define PDU_M_MBOX_UPLOAD_CONF 0x90
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#define PDU_M_MBOX_DELETE_REQ 0x91
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#define PDU_M_MBOX_DELETE_CONF 0x92
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#define PDU_M_MBOX_DESCR 0x93
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#define pdu_has_content(pdut) \
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( ((pdut) == PDU_M_SEND_REQ) \
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|| ((pdut) == PDU_M_DELIVERY_IND) \
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|| ((pdut) == PDU_M_RETRIEVE_CONF) \
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|| ((pdut) == PDU_M_MBOX_VIEW_CONF) \
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|| ((pdut) == PDU_M_MBOX_DESCR) \
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|| ((pdut) == PDU_M_MBOX_UPLOAD_REQ) \
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)
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static const value_string vals_message_type[] = {
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/* MMS 1.0 */
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{ PDU_M_SEND_REQ, "m-send-req" },
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{ PDU_M_SEND_CONF, "m-send-conf" },
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{ PDU_M_NOTIFICATION_IND, "m-notification-ind" },
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{ PDU_M_NOTIFYRESP_IND, "m-notifyresp-ind" },
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{ PDU_M_RETRIEVE_CONF, "m-retrieve-conf" },
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{ PDU_M_ACKNOWLEDGE_IND, "m-acknowledge-ind" },
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{ PDU_M_DELIVERY_IND, "m-delivery-ind" },
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/* MMS 1.1 */
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{ PDU_M_READ_REC_IND, "m-read-rec-ind" },
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{ PDU_M_READ_ORIG_IND, "m-read-orig-ind" },
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{ PDU_M_FORWARD_REQ, "m-forward-req" },
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{ PDU_M_FORWARD_CONF, "m-forward-conf" },
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/* MMS 1.2 */
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{ PDU_M_MBOX_STORE_REQ, "m-mbox-store-req" },
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{ PDU_M_MBOX_STORE_CONF, "m-mbox-store-conf" },
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{ PDU_M_MBOX_VIEW_REQ, "m-mbox-view-req" },
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{ PDU_M_MBOX_VIEW_CONF, "m-mbox-view-conf" },
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{ PDU_M_MBOX_UPLOAD_REQ, "m-mbox-upload-req" },
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{ PDU_M_MBOX_UPLOAD_CONF, "m-mbox-upload-conf" },
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{ PDU_M_MBOX_DELETE_REQ, "m-mbox-delete-req" },
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{ PDU_M_MBOX_DELETE_CONF, "m-mbox-delete-conf" },
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{ PDU_M_MBOX_DESCR, "m-mbox-descr" },
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{ 0x00, NULL },
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};
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static const value_string vals_yes_no[] = {
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{ 0x80, "Yes" },
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{ 0x81, "No" },
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{ 0x00, NULL },
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};
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static const value_string vals_message_class[] = {
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{ 0x80, "Personal" },
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{ 0x81, "Advertisement" },
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{ 0x82, "Informational" },
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{ 0x83, "Auto" },
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{ 0x00, NULL },
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};
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static const value_string vals_priority[] = {
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{ 0x80, "Low" },
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{ 0x81, "Normal" },
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{ 0x82, "High" },
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{ 0x00, NULL },
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};
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static const value_string vals_response_status[] = {
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/* MMS 1.0 - obsolete as from MMS 1.1 */
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{ 0x80, "Ok" },
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{ 0x81, "Unspecified" },
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{ 0x82, "Service denied" },
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{ 0x83, "Message format corrupt" },
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{ 0x84, "Sending address unresolved" },
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{ 0x85, "Message not found" },
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{ 0x86, "Network problem" },
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{ 0x87, "Content not accepted" },
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{ 0x88, "Unsupported message" },
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/*
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* Transient errors
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*/
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/* MMS 1.1 */
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{ 0xC0, "Transient failure" },
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{ 0xC1, "Transient: Sending address unresolved" },
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{ 0xC2, "Transient: Message not found" },
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{ 0xC3, "Transient: Network problem" },
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/* MMS 1.2 */
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{ 0xC4, "Transient: Partial success" },
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/*
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* Permanent errors
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*/
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/* MMS 1.1 */
|
|
{ 0xE0, "Permanent failure" },
|
|
{ 0xE1, "Permanent: Service denied" },
|
|
{ 0xE2, "Permanent: Message format corrupt" },
|
|
{ 0xE3, "Permanent: Sending address unresolved" },
|
|
{ 0xE4, "Permanent: Message not found" },
|
|
{ 0xE5, "Permanent: Content not accepted" },
|
|
{ 0xE6, "Permanent: Reply charging limitations not met" },
|
|
{ 0xE7, "Permanent: Reply charging request not accepted" },
|
|
{ 0xE8, "Permanent: Reply charging forwarding denied" },
|
|
{ 0xE9, "Permanent: Reply charging not supported" },
|
|
/* MMS 1.2 */
|
|
{ 0xEA, "Permanent: Address hiding not supported" },
|
|
|
|
{ 0x00, NULL },
|
|
};
|
|
|
|
static const value_string vals_sender_visibility[] = {
|
|
{ 0x80, "Hide" },
|
|
{ 0x81, "Show" },
|
|
{ 0x00, NULL },
|
|
};
|
|
|
|
static const value_string vals_message_status[] = {
|
|
/* MMS 1.0 */
|
|
{ 0x80, "Expired" },
|
|
{ 0x81, "Retrieved" },
|
|
{ 0x82, "Rejected" },
|
|
{ 0x83, "Deferred" },
|
|
{ 0x84, "Unrecognized" },
|
|
/* MMS 1.1 */
|
|
{ 0x85, "Indeterminate" },
|
|
{ 0x86, "Forwarded" },
|
|
/* MMS 1.2 */
|
|
{ 0x87, "Unreachable" },
|
|
|
|
{ 0x00, NULL },
|
|
};
|
|
|
|
static const value_string vals_retrieve_status[] = {
|
|
/*
|
|
* Transient errors
|
|
*/
|
|
/* MMS 1.1 */
|
|
{ 0xC0, "Transient failure" },
|
|
{ 0xC1, "Transient: Message not found" },
|
|
{ 0xC2, "Transient: Network problem" },
|
|
|
|
/*
|
|
* Permanent errors
|
|
*/
|
|
/* MMS 1.1 */
|
|
{ 0xE0, "Permanent failure" },
|
|
{ 0xE1, "Permanent: Service denied" },
|
|
{ 0xE2, "Permanent: Message not found" },
|
|
{ 0xE3, "Permanent: Content unsupported" },
|
|
|
|
{ 0x00, NULL },
|
|
};
|
|
|
|
static const value_string vals_read_status[] = {
|
|
{ 0x80, "Read" },
|
|
{ 0x81, "Deleted without being read" },
|
|
|
|
{ 0x00, NULL },
|
|
};
|
|
|
|
static const value_string vals_reply_charging[] = {
|
|
{ 0x80, "Requested" },
|
|
{ 0x81, "Requested text only" },
|
|
{ 0x82, "Accepted" },
|
|
{ 0x83, "Accepted text only" },
|
|
|
|
{ 0x00, NULL },
|
|
};
|
|
|
|
/*!
|
|
* Decodes a Text-string from the protocol data
|
|
* Text-string = [Quote] *TEXT End-of-string
|
|
* Quote = <Octet 127>
|
|
* End-of-string = <Octet 0>
|
|
*
|
|
* \todo Shouldn't we be sharing this with WSP (packet-wap.c)?
|
|
*
|
|
* \param tvb The buffer with PDU-data
|
|
* \param offset Offset within that buffer
|
|
* \param strval Pointer to variable into which to put pointer to
|
|
* buffer allocated to hold the text; must be freed
|
|
* when no longer used
|
|
*
|
|
* \return The length in bytes of the entire field
|
|
*/
|
|
static guint
|
|
get_text_string(tvbuff_t *tvb, guint offset, const char **strval)
|
|
{
|
|
guint len;
|
|
|
|
DebugLog(("get_text_string(tvb = %p, offset = %u, **strval) - start\n",
|
|
tvb, offset));
|
|
len = tvb_strsize(tvb, offset);
|
|
DebugLog((" [1] tvb_strsize(tvb, offset) == %u\n", len));
|
|
if (tvb_get_guint8(tvb, offset) == MM_QUOTE)
|
|
*strval = ep_tvb_memdup(tvb, offset+1, len-1);
|
|
else
|
|
*strval = ep_tvb_memdup(tvb, offset, len);
|
|
DebugLog((" [3] Return(len) == %u\n", len));
|
|
return len;
|
|
}
|
|
|
|
/*!
|
|
* Decodes a Value-length from the protocol data.
|
|
* Value-length = Short-length | (Length-quote Length)
|
|
* Short-length = <Any octet 0-30>
|
|
* Length-quote = <Octet 31>
|
|
* Length = Uintvar-integer
|
|
*
|
|
* \todo Shouldn't we be sharing this with WSP (packet-wap.c)?
|
|
*
|
|
* \param tvb The buffer with PDU-data
|
|
* \param offset Offset within that buffer
|
|
* \param byte_count Returns the length in bytes of
|
|
* the "Value-length" field.
|
|
*
|
|
* \return The actual value of "Value-length"
|
|
*/
|
|
static guint
|
|
get_value_length(tvbuff_t *tvb, guint offset, guint *byte_count)
|
|
{
|
|
guint field;
|
|
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (field < 31)
|
|
*byte_count = 1;
|
|
else { /* Must be 31 so, Uintvar follows */
|
|
field = tvb_get_guintvar(tvb, offset, byte_count);
|
|
(*byte_count)++;
|
|
}
|
|
return field;
|
|
}
|
|
|
|
/*!
|
|
* Decodes an Encoded-string-value from the protocol data
|
|
* Encoded-string-value = Text-string | Value-length Char-set Text-string
|
|
*
|
|
* \param tvb The buffer with PDU-data
|
|
* \param offset Offset within that buffer
|
|
* \param strval Pointer to variable into which to put pointer to
|
|
* buffer allocated to hold the text; must be freed
|
|
* when no longer used
|
|
*
|
|
* \return The length in bytes of the entire field
|
|
*/
|
|
static guint
|
|
get_encoded_strval(tvbuff_t *tvb, guint offset, const char **strval)
|
|
{
|
|
guint field;
|
|
guint length;
|
|
guint count;
|
|
|
|
field = tvb_get_guint8(tvb, offset);
|
|
|
|
if (field < 32) {
|
|
length = get_value_length(tvb, offset, &count);
|
|
if (length < 2) {
|
|
*strval = "";
|
|
} else {
|
|
/* \todo Something with "Char-set", skip for now */
|
|
*strval = (char *)tvb_get_ephemeral_string(tvb, offset + count + 1, length - 1);
|
|
}
|
|
return count + length;
|
|
} else
|
|
return get_text_string(tvb, offset, strval);
|
|
}
|
|
|
|
/*!
|
|
* Decodes a Long-integer from the protocol data
|
|
* Long-integer = Short-length Multi-octet-integer
|
|
* Short-length = <Any octet 0-30>
|
|
* Multi-octet-integer = 1*30OCTET
|
|
*
|
|
* \todo Shouldn't we be sharing this with WSP (packet-wap.c)?
|
|
*
|
|
* \param tvb The buffer with PDU-data
|
|
* \param offset Offset within that buffer
|
|
* \param byte_count Returns the length in bytes of the field
|
|
*
|
|
* \return The value of the Long-integer
|
|
*
|
|
* \note A maximum of 4-byte integers will be handled.
|
|
*/
|
|
static guint
|
|
get_long_integer(tvbuff_t *tvb, guint offset, guint *byte_count)
|
|
{
|
|
guint val;
|
|
|
|
*byte_count = tvb_get_guint8(tvb, offset++);
|
|
switch (*byte_count) {
|
|
case 1:
|
|
val = tvb_get_guint8(tvb, offset);
|
|
break;
|
|
case 2:
|
|
val = tvb_get_ntohs(tvb, offset);
|
|
break;
|
|
case 3:
|
|
val = tvb_get_ntoh24(tvb, offset);
|
|
break;
|
|
case 4:
|
|
val = tvb_get_ntohl(tvb, offset);
|
|
break;
|
|
default:
|
|
val = 0;
|
|
break;
|
|
}
|
|
(*byte_count)++;
|
|
return val;
|
|
}
|
|
|
|
/*!
|
|
* Decodes an Integer-value from the protocol data
|
|
* Integer-value = Short-integer | Long-integer
|
|
* Short-integer = OCTET
|
|
* Long-integer = Short-length Multi-octet-integer
|
|
* Short-length = <Any octet 0-30>
|
|
* Multi-octet-integer = 1*30OCTET
|
|
*
|
|
* \todo Shouldn't we be sharing this with WSP (packet-wap.c)?
|
|
*
|
|
* \param tvb The buffer with PDU-data
|
|
* \param offset Offset within that buffer
|
|
* \param byte_count Returns the length in bytes of the field
|
|
*
|
|
* \return The value of the Long-integer
|
|
*
|
|
* \note A maximum of 4-byte integers will be handled.
|
|
*/
|
|
static guint
|
|
get_integer_value(tvbuff_t *tvb, guint offset, guint *byte_count)
|
|
{
|
|
guint val;
|
|
guint8 peek;
|
|
|
|
peek = tvb_get_guint8(tvb, offset++);
|
|
if (peek & 0x80) {
|
|
val = peek & 0x7F;
|
|
*byte_count = 1;
|
|
return val;
|
|
} else {
|
|
*byte_count = peek;
|
|
switch (peek) {
|
|
case 1:
|
|
val = tvb_get_guint8(tvb, offset);
|
|
break;
|
|
case 2:
|
|
val = tvb_get_ntohs(tvb, offset);
|
|
break;
|
|
case 3:
|
|
val = tvb_get_ntoh24(tvb, offset);
|
|
break;
|
|
case 4:
|
|
val = tvb_get_ntohl(tvb, offset);
|
|
break;
|
|
default:
|
|
val = 0;
|
|
break;
|
|
}
|
|
}
|
|
(*byte_count)++;
|
|
return val;
|
|
}
|
|
|
|
/* Code to actually dissect the packets */
|
|
static gboolean
|
|
dissect_mmse_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 pdut;
|
|
|
|
DebugLog(("dissect_mmse_heur()\n"));
|
|
/*
|
|
* Check if data makes sense for it to be dissected as MMSE: Message-type
|
|
* field must make sense and followed by either Transaction-Id
|
|
* or MMS-Version header
|
|
*/
|
|
if (tvb_get_guint8(tvb, 0) != MM_MTYPE_HDR)
|
|
return FALSE;
|
|
pdut = tvb_get_guint8(tvb, 1);
|
|
if (match_strval(pdut, vals_message_type) == NULL)
|
|
return FALSE;
|
|
if ((tvb_get_guint8(tvb, 2) != MM_TID_HDR) &&
|
|
(tvb_get_guint8(tvb, 2) != MM_VERSION_HDR))
|
|
return FALSE;
|
|
dissect_mmse_standalone(tvb, pinfo, tree);
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
dissect_mmse_standalone(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 pdut;
|
|
const char *message_type;
|
|
|
|
DebugLog(("dissect_mmse_standalone() - START (Packet %u)\n",
|
|
pinfo->fd->num));
|
|
|
|
pdut = tvb_get_guint8(tvb, 1);
|
|
message_type = val_to_str(pdut, vals_message_type, "Unknown type %u");
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MMSE");
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "MMS %s", message_type);
|
|
}
|
|
|
|
dissect_mmse(tvb, pinfo, tree, pdut, message_type);
|
|
}
|
|
|
|
static void
|
|
dissect_mmse_encapsulated(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint8 pdut;
|
|
const char *message_type;
|
|
|
|
DebugLog(("dissect_mmse_encapsulated() - START (Packet %u)\n",
|
|
pinfo->fd->num));
|
|
|
|
pdut = tvb_get_guint8(tvb, 1);
|
|
message_type = val_to_str(pdut, vals_message_type, "Unknown type %u");
|
|
|
|
/* Make entries in Info column on summary display */
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_sep_fstr(pinfo->cinfo, COL_INFO, " ", "(MMS %s)",
|
|
message_type);
|
|
}
|
|
|
|
dissect_mmse(tvb, pinfo, tree, pdut, message_type);
|
|
}
|
|
|
|
static void
|
|
dissect_mmse(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint8 pdut,
|
|
const char *message_type)
|
|
{
|
|
guint offset;
|
|
guint8 field = 0;
|
|
const char *strval;
|
|
guint length;
|
|
guint count;
|
|
guint8 version = 0x80; /* Default to MMSE 1.0 */
|
|
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
proto_item *ti = NULL;
|
|
proto_tree *mmse_tree = NULL;
|
|
|
|
DebugLog(("dissect_mmse() - START (Packet %u)\n", pinfo->fd->num));
|
|
|
|
/* If tree == NULL then we are only interested in protocol dissection
|
|
* up to reassembly and handoff to subdissectors if applicable; the
|
|
* columns must be set appropriately too.
|
|
* If tree != NULL then we also want to display the protocol tree
|
|
* with its fields.
|
|
*
|
|
* In the interest of speed, skip protocol tree item generation
|
|
* if tree is NULL.
|
|
*/
|
|
if (tree) {
|
|
DebugLog(("tree != NULL\n"));
|
|
|
|
ti = proto_tree_add_item(tree, proto_mmse, tvb, 0, -1, FALSE);
|
|
proto_item_append_text(ti, ", Type: %s", message_type);
|
|
/* create display subtree for the protocol */
|
|
mmse_tree = proto_item_add_subtree(ti, ett_mmse);
|
|
|
|
/* Report PDU-type */
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_message_type, tvb, 0, 2, pdut);
|
|
}
|
|
|
|
offset = 2; /* Skip Message-Type */
|
|
|
|
/*
|
|
* Cycle through MMS-headers
|
|
*
|
|
* NOTE - some PDUs may convey content which can be handed off
|
|
* to subdissectors.
|
|
*/
|
|
if (tree || pdu_has_content(pdut)) {
|
|
while ((offset < tvb_reported_length(tvb)) &&
|
|
(field = tvb_get_guint8(tvb, offset++)) != MM_CTYPE_HDR)
|
|
{
|
|
DebugLog(("\tField = 0x%02X (offset = %u): %s\n",
|
|
field, offset,
|
|
val_to_str(field, vals_mm_header_names,
|
|
"Unknown MMS header 0x%02X")));
|
|
switch (field)
|
|
{
|
|
case MM_TID_HDR: /* Text-string */
|
|
length = get_text_string(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree, hf_mmse_transaction_id,
|
|
tvb, offset - 1, length + 1,strval);
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_VERSION_HDR: /* nibble-Major/nibble-minor*/
|
|
version = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
guint8 major, minor;
|
|
char *vers_string;
|
|
|
|
major = (version & 0x70) >> 4;
|
|
minor = version & 0x0F;
|
|
if (minor == 0x0F)
|
|
vers_string = g_strdup_printf("%u", major);
|
|
else
|
|
vers_string = g_strdup_printf("%u.%u", major, minor);
|
|
proto_tree_add_string(mmse_tree, hf_mmse_mms_version,
|
|
tvb, offset - 2, 2, vers_string);
|
|
g_free(vers_string);
|
|
}
|
|
break;
|
|
case MM_BCC_HDR: /* Encoded-string-value */
|
|
length = get_encoded_strval(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree, hf_mmse_bcc, tvb,
|
|
offset - 1, length + 1, strval);
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_CC_HDR: /* Encoded-string-value */
|
|
length = get_encoded_strval(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree, hf_mmse_cc, tvb,
|
|
offset - 1, length + 1, strval);
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_CLOCATION_HDR: /* Uri-value */
|
|
if (pdut == PDU_M_MBOX_DELETE_CONF) {
|
|
/* General form with length */
|
|
length = tvb_get_guint8(tvb, offset);
|
|
if (length == 0x1F) {
|
|
guint length_len = 0;
|
|
length = tvb_get_guintvar(tvb, offset + 1,
|
|
&length_len);
|
|
length += 1 + length_len;
|
|
} else {
|
|
length += 1;
|
|
}
|
|
if (tree) {
|
|
tvb_ensure_bytes_exist(tvb, offset - 1, length + 1);
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_content_location,
|
|
tvb, offset - 1, length + 1,
|
|
"<Undecoded value for m-mbox-delete-conf>");
|
|
}
|
|
} else {
|
|
length = get_text_string(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_content_location,
|
|
tvb, offset - 1, length + 1, strval);
|
|
}
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_DATE_HDR: /* Long-integer */
|
|
{
|
|
guint tval;
|
|
nstime_t tmptime;
|
|
|
|
tval = get_long_integer(tvb, offset, &count);
|
|
tmptime.secs = tval;
|
|
tmptime.nsecs = 0;
|
|
if (tree) {
|
|
tvb_ensure_bytes_exist(tvb, offset - 1, count + 1);
|
|
proto_tree_add_time(mmse_tree, hf_mmse_date, tvb,
|
|
offset - 1, count + 1, &tmptime);
|
|
}
|
|
}
|
|
offset += count;
|
|
break;
|
|
case MM_DREPORT_HDR: /* Yes|No */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree,
|
|
hf_mmse_delivery_report,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_DTIME_HDR:
|
|
/*
|
|
* Value-length(Absolute-token Date-value|
|
|
* Relative-token Delta-seconds-value)
|
|
*/
|
|
length = get_value_length(tvb, offset, &count);
|
|
field = tvb_get_guint8(tvb, offset + count);
|
|
if (tree) {
|
|
guint tval;
|
|
nstime_t tmptime;
|
|
guint cnt;
|
|
|
|
tval = get_long_integer(tvb, offset + count + 1, &cnt);
|
|
tmptime.secs = tval;
|
|
tmptime.nsecs = 0;
|
|
|
|
tvb_ensure_bytes_exist(tvb, offset - 1, length + count + 1);
|
|
if (field == 0x80)
|
|
proto_tree_add_time(mmse_tree,
|
|
hf_mmse_delivery_time_abs,
|
|
tvb, offset - 1,
|
|
length + count + 1, &tmptime);
|
|
else
|
|
proto_tree_add_time(mmse_tree,
|
|
hf_mmse_delivery_time_rel,
|
|
tvb, offset - 1,
|
|
length + count + 1, &tmptime);
|
|
}
|
|
offset += length + count;
|
|
break;
|
|
case MM_EXPIRY_HDR:
|
|
/*
|
|
* Value-length(Absolute-token Date-value|
|
|
* Relative-token Delta-seconds-value)
|
|
*/
|
|
length = get_value_length(tvb, offset, &count);
|
|
field = tvb_get_guint8(tvb, offset + count);
|
|
if (tree) {
|
|
guint tval;
|
|
nstime_t tmptime;
|
|
guint cnt;
|
|
|
|
tval = get_long_integer(tvb, offset + count + 1, &cnt);
|
|
tmptime.secs = tval;
|
|
tmptime.nsecs = 0;
|
|
|
|
tvb_ensure_bytes_exist(tvb, offset - 1, length + count + 1);
|
|
if (field == 0x80)
|
|
proto_tree_add_time(mmse_tree, hf_mmse_expiry_abs,
|
|
tvb, offset - 1,
|
|
length + count + 1, &tmptime);
|
|
else
|
|
proto_tree_add_time(mmse_tree, hf_mmse_expiry_rel,
|
|
tvb, offset - 1,
|
|
length + count + 1, &tmptime);
|
|
}
|
|
offset += length + count;
|
|
break;
|
|
case MM_FROM_HDR:
|
|
/*
|
|
* Value-length(Address-present-token Encoded-string-value
|
|
* |Insert-address-token)
|
|
*/
|
|
length = get_value_length(tvb, offset, &count);
|
|
if (tree) {
|
|
field = tvb_get_guint8(tvb, offset + count);
|
|
tvb_ensure_bytes_exist(tvb, offset - 1, length + count + 1);
|
|
if (field == 0x81) {
|
|
proto_tree_add_string(mmse_tree, hf_mmse_from, tvb,
|
|
offset-1, length + count + 1,
|
|
"<insert address>");
|
|
} else {
|
|
(void) get_encoded_strval(tvb, offset + count + 1,
|
|
&strval);
|
|
proto_tree_add_string(mmse_tree, hf_mmse_from, tvb,
|
|
offset-1, length + count + 1, strval);
|
|
}
|
|
}
|
|
offset += length + count;
|
|
break;
|
|
case MM_MCLASS_HDR:
|
|
/*
|
|
* Class-identifier|Text-string
|
|
*/
|
|
field = tvb_get_guint8(tvb, offset);
|
|
if (field & 0x80) {
|
|
offset++;
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree,
|
|
hf_mmse_message_class_id,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
} else {
|
|
length = get_text_string(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_message_class_str,
|
|
tvb, offset - 1, length + 1,
|
|
strval);
|
|
}
|
|
offset += length;
|
|
}
|
|
break;
|
|
case MM_MID_HDR: /* Text-string */
|
|
length = get_text_string(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree, hf_mmse_message_id,
|
|
tvb, offset - 1, length + 1, strval);
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_MSIZE_HDR: /* Long-integer */
|
|
length = get_long_integer(tvb, offset, &count);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_message_size,
|
|
tvb, offset - 1, count + 1, length);
|
|
}
|
|
offset += count;
|
|
break;
|
|
case MM_PRIORITY_HDR: /* Low|Normal|High */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_priority, tvb,
|
|
offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_RREPLY_HDR: /* Yes|No */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
if (version == 0x80) { /* MMSE 1.0 */
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_read_reply,
|
|
tvb, offset - 2, 2, field);
|
|
} else {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_read_report,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
}
|
|
break;
|
|
case MM_RALLOWED_HDR: /* Yes|No */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_report_allowed,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_RSTATUS_HDR:
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_response_status,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_RTEXT_HDR: /* Encoded-string-value */
|
|
if (pdut == PDU_M_MBOX_DELETE_CONF) {
|
|
/* General form with length */
|
|
length = tvb_get_guint8(tvb, offset);
|
|
if (length == 0x1F) {
|
|
guint length_len = 0;
|
|
length = tvb_get_guintvar(tvb, offset + 1,
|
|
&length_len);
|
|
length += 1 + length_len;
|
|
} else {
|
|
length += 1;
|
|
}
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_content_location,
|
|
tvb, offset - 1, length + 1,
|
|
"<Undecoded value for m-mbox-delete-conf>");
|
|
}
|
|
} else {
|
|
length = get_encoded_strval(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_response_text, tvb, offset - 1,
|
|
length + 1, strval);
|
|
}
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_SVISIBILITY_HDR: /* Hide|Show */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree,hf_mmse_sender_visibility,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_STATUS_HDR:
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_status, tvb,
|
|
offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_SUBJECT_HDR: /* Encoded-string-value */
|
|
length = get_encoded_strval(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree, hf_mmse_subject, tvb,
|
|
offset - 1, length + 1, strval);
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_TO_HDR: /* Encoded-string-value */
|
|
length = get_encoded_strval(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree, hf_mmse_to, tvb,
|
|
offset - 1, length + 1, strval);
|
|
}
|
|
offset += length;
|
|
break;
|
|
|
|
/*
|
|
* MMS Encapsulation 1.1
|
|
*/
|
|
case MM_RETRIEVE_STATUS_HDR: /* Well-known-value */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_retrieve_status,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_RETRIEVE_TEXT_HDR:
|
|
if (pdut == PDU_M_MBOX_DELETE_CONF) {
|
|
/* General form with length */
|
|
length = tvb_get_guint8(tvb, offset);
|
|
if (length == 0x1F) {
|
|
guint length_len = 0;
|
|
length = tvb_get_guintvar(tvb, offset + 1,
|
|
&length_len);
|
|
length += 1 + length_len;
|
|
} else {
|
|
length += 1;
|
|
}
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_content_location,
|
|
tvb, offset - 1, length + 1,
|
|
"<Undecoded value for m-mbox-delete-conf>");
|
|
}
|
|
} else {
|
|
/* Encoded-string-value */
|
|
length = get_encoded_strval(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_retrieve_text, tvb, offset - 1,
|
|
length + 1, strval);
|
|
}
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_READ_STATUS_HDR: /* Well-known-value */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_read_status,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_REPLY_CHARGING_HDR: /* Well-known-value */
|
|
field = tvb_get_guint8(tvb, offset++);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree, hf_mmse_reply_charging,
|
|
tvb, offset - 2, 2, field);
|
|
}
|
|
break;
|
|
case MM_REPLY_CHARGING_DEADLINE_HDR: /* Well-known-value */
|
|
/*
|
|
* Value-length(Absolute-token Date-value|
|
|
* Relative-token Delta-seconds-value)
|
|
*/
|
|
length = get_value_length(tvb, offset, &count);
|
|
field = tvb_get_guint8(tvb, offset + count);
|
|
if (tree) {
|
|
guint tval;
|
|
nstime_t tmptime;
|
|
guint cnt;
|
|
|
|
tval = get_long_integer(tvb, offset + count + 1, &cnt);
|
|
tmptime.secs = tval;
|
|
tmptime.nsecs = 0;
|
|
|
|
tvb_ensure_bytes_exist(tvb, offset - 1, length + count + 1);
|
|
if (field == 0x80)
|
|
proto_tree_add_time(mmse_tree, hf_mmse_reply_charging_deadline_abs,
|
|
tvb, offset - 1,
|
|
length + count + 1, &tmptime);
|
|
else
|
|
proto_tree_add_time(mmse_tree, hf_mmse_reply_charging_deadline_rel,
|
|
tvb, offset - 1,
|
|
length + count + 1, &tmptime);
|
|
}
|
|
offset += length + count;
|
|
break;
|
|
case MM_REPLY_CHARGING_ID_HDR: /* Text-string */
|
|
length = get_text_string(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_string(mmse_tree,
|
|
hf_mmse_reply_charging_id,
|
|
tvb, offset - 1, length + 1, strval);
|
|
}
|
|
offset += length;
|
|
break;
|
|
case MM_REPLY_CHARGING_SIZE_HDR: /* Long-integer */
|
|
length = get_long_integer(tvb, offset, &count);
|
|
if (tree) {
|
|
proto_tree_add_uint(mmse_tree,
|
|
hf_mmse_reply_charging_size,
|
|
tvb, offset - 1, count + 1, length);
|
|
}
|
|
offset += count;
|
|
break;
|
|
case MM_PREV_SENT_BY_HDR:
|
|
/* Value-length Integer-value Encoded-string-value */
|
|
length = get_value_length(tvb, offset, &count);
|
|
if (tree) {
|
|
guint32 fwd_count, count1, count2;
|
|
proto_tree *subtree = NULL;
|
|
proto_item *ti = NULL;
|
|
/* 1. Forwarded-count-value := Integer-value */
|
|
fwd_count = get_integer_value(tvb, offset + count,
|
|
&count1);
|
|
/* 2. Encoded-string-value */
|
|
count2 = get_encoded_strval(tvb,
|
|
offset + count + count1, &strval);
|
|
/* Now render the fields */
|
|
ti = proto_tree_add_string_format(mmse_tree,
|
|
hf_mmse_prev_sent_by,
|
|
tvb, offset - 1, 1 + count + length,
|
|
strval, "%s (Forwarded-count=%u)",
|
|
format_text(strval, strlen(strval)),
|
|
fwd_count);
|
|
subtree = proto_item_add_subtree(ti,
|
|
ett_mmse_hdr_details);
|
|
proto_tree_add_uint(subtree,
|
|
hf_mmse_prev_sent_by_fwd_count,
|
|
tvb, offset + count, count1, fwd_count);
|
|
proto_tree_add_string(subtree,
|
|
hf_mmse_prev_sent_by_address,
|
|
tvb, offset + count + count1, count2, strval);
|
|
}
|
|
offset += length + count;
|
|
break;
|
|
case MM_PREV_SENT_DATE_HDR:
|
|
/* Value-Length Forwarded-count-value Date-value */
|
|
length = get_value_length(tvb, offset, &count);
|
|
if (tree) {
|
|
guint32 fwd_count, count1, count2;
|
|
guint tval;
|
|
nstime_t tmptime;
|
|
proto_tree *subtree = NULL;
|
|
proto_item *ti = NULL;
|
|
/* 1. Forwarded-count-value := Integer-value */
|
|
fwd_count = get_integer_value(tvb, offset + count,
|
|
&count1);
|
|
/* 2. Date-value := Long-integer */
|
|
tval = get_long_integer(tvb, offset + count + count1,
|
|
&count2);
|
|
tmptime.secs = tval;
|
|
tmptime.nsecs = 0;
|
|
strval = abs_time_to_str(&tmptime);
|
|
/* Now render the fields */
|
|
tvb_ensure_bytes_exist(tvb, offset - 1, length + count + 1);
|
|
ti = proto_tree_add_string_format(mmse_tree,
|
|
hf_mmse_prev_sent_date,
|
|
tvb, offset - 1, 1 + count + length,
|
|
strval, "%s (Forwarded-count=%u)",
|
|
format_text(strval, strlen(strval)),
|
|
fwd_count);
|
|
subtree = proto_item_add_subtree(ti,
|
|
ett_mmse_hdr_details);
|
|
proto_tree_add_uint(subtree,
|
|
hf_mmse_prev_sent_date_fwd_count,
|
|
tvb, offset + count, count1, fwd_count);
|
|
proto_tree_add_string(subtree,
|
|
hf_mmse_prev_sent_date_date,
|
|
tvb, offset + count + count1, count2, strval);
|
|
}
|
|
offset += length + count;
|
|
break;
|
|
|
|
/* MMS Encapsulation 1.2 */
|
|
|
|
default:
|
|
if (field & 0x80) { /* Well-known WSP header encoding */
|
|
guint8 peek = tvb_get_guint8(tvb, offset);
|
|
const char *hdr_name = val_to_str(field, vals_mm_header_names,
|
|
"Unknown field (0x%02x)");
|
|
DebugLog(("\t\tUndecoded well-known header: %s\n",
|
|
hdr_name));
|
|
|
|
if (peek & 0x80) { /* Well-known value */
|
|
length = 1;
|
|
if (tree) {
|
|
proto_tree_add_text(mmse_tree, tvb, offset - 1,
|
|
length + 1,
|
|
"%s: <Well-known value 0x%02x>"
|
|
" (not decoded)",
|
|
hdr_name, peek);
|
|
}
|
|
} else if ((peek == 0) || (peek >= 0x20)) { /* Text */
|
|
length = get_text_string(tvb, offset, &strval);
|
|
if (tree) {
|
|
proto_tree_add_text(mmse_tree, tvb, offset - 1,
|
|
length + 1, "%s: %s (Not decoded)",
|
|
hdr_name,
|
|
format_text(strval, strlen(strval)));
|
|
}
|
|
} else { /* General form with length */
|
|
if (peek == 0x1F) { /* Value length in guintvar */
|
|
guint length_len = 0;
|
|
length = 1 + tvb_get_guintvar(tvb, offset + 1,
|
|
&length_len);
|
|
length += length_len;
|
|
} else { /* Value length in octet */
|
|
length = 1 + tvb_get_guint8(tvb, offset);
|
|
}
|
|
if (tree) {
|
|
proto_tree_add_text(mmse_tree, tvb, offset - 1,
|
|
length + 1, "%s: "
|
|
"<Value in general form> (not decoded)",
|
|
hdr_name);
|
|
}
|
|
}
|
|
offset += length;
|
|
} else { /* Literal WSP header encoding */
|
|
guint length2;
|
|
const char *strval2;
|
|
|
|
--offset;
|
|
length = get_text_string(tvb, offset, &strval);
|
|
DebugLog(("\t\tUndecoded literal header: %s\n",
|
|
strval));
|
|
length2= get_text_string(tvb, offset+length, &strval2);
|
|
|
|
if (tree) {
|
|
proto_tree_add_string_format(mmse_tree,
|
|
hf_mmse_ffheader, tvb, offset,
|
|
length + length2,
|
|
(const char *) tvb_get_ptr(
|
|
tvb, offset, length + length2),
|
|
"%s: %s",
|
|
format_text(strval, strlen(strval)),
|
|
format_text(strval2, strlen(strval2)));
|
|
}
|
|
offset += length + length2;
|
|
}
|
|
break;
|
|
}
|
|
DebugLog(("\tEnd(case)\n"));
|
|
}
|
|
DebugLog(("\tEnd(switch)\n"));
|
|
if (field == MM_CTYPE_HDR) {
|
|
/*
|
|
* Eeehh, we're now actually back to good old WSP content-type
|
|
* encoding. Let's steal that from the WSP-dissector.
|
|
*/
|
|
tvbuff_t *tmp_tvb;
|
|
guint type;
|
|
const char *type_str;
|
|
|
|
DebugLog(("Content-Type: [from WSP dissector]\n"));
|
|
DebugLog(("Calling add_content_type() in WSP dissector\n"));
|
|
offset = add_content_type(mmse_tree, tvb, offset, &type, &type_str);
|
|
DebugLog(("Generating new TVB subset (offset = %u)\n", offset));
|
|
tmp_tvb = tvb_new_subset(tvb, offset, -1, -1);
|
|
DebugLog(("Add POST data\n"));
|
|
add_post_data(mmse_tree, tmp_tvb, type, type_str, pinfo);
|
|
DebugLog(("Done!\n"));
|
|
}
|
|
} else {
|
|
DebugLog(("tree == NULL and PDU has no potential content\n"));
|
|
}
|
|
|
|
/* If this protocol has a sub-dissector call it here, see section 1.8 */
|
|
DebugLog(("dissect_mmse() - END\n"));
|
|
}
|
|
|
|
|
|
/* Register the protocol with Wireshark */
|
|
|
|
/* this format is required because a script is used to build the C function
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* that calls all the protocol registration.
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*/
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void
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proto_register_mmse(void)
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{
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/* Setup list of header fields See Section 1.6.1 for details */
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static hf_register_info hf[] = {
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{ &hf_mmse_message_type,
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{ "X-Mms-Message-Type", "mmse.message_type",
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FT_UINT8, BASE_HEX, VALS(vals_message_type), 0x00,
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"Specifies the transaction type. Effectively defines PDU.",
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HFILL
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}
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},
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{ &hf_mmse_transaction_id,
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{ "X-Mms-Transaction-ID", "mmse.transaction_id",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"A unique identifier for this transaction. "
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"Identifies request and corresponding response only.",
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HFILL
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}
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},
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{ &hf_mmse_mms_version,
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{ "X-Mms-MMS-Version", "mmse.mms_version",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Version of the protocol used.",
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HFILL
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}
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},
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{ &hf_mmse_bcc,
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{ "Bcc", "mmse.bcc",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Blind carbon copy.",
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HFILL
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}
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},
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{ &hf_mmse_cc,
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{ "Cc", "mmse.cc",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Carbon copy.",
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HFILL
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}
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},
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{ &hf_mmse_content_location,
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{ "X-Mms-Content-Location", "mmse.content_location",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Defines the location of the message.",
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HFILL
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}
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},
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{ &hf_mmse_date,
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{ "Date", "mmse.date",
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FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0x00,
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"Arrival timestamp of the message or sending timestamp.",
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HFILL
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}
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},
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{ &hf_mmse_delivery_report,
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{ "X-Mms-Delivery-Report", "mmse.delivery_report",
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FT_UINT8, BASE_HEX, VALS(vals_yes_no), 0x00,
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"Whether a report of message delivery is wanted or not.",
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HFILL
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}
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},
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{ &hf_mmse_delivery_time_abs,
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{ "X-Mms-Delivery-Time", "mmse.delivery_time.abs",
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FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0x00,
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"The time at which message delivery is desired.",
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HFILL
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}
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},
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{ &hf_mmse_delivery_time_rel,
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{ "X-Mms-Delivery-Time", "mmse.delivery_time.rel",
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FT_RELATIVE_TIME, BASE_NONE, NULL, 0x00,
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"The desired message delivery delay.",
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HFILL
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}
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},
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{ &hf_mmse_expiry_abs,
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{ "X-Mms-Expiry", "mmse.expiry.abs",
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FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0x00,
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"Time when message expires and need not be delivered anymore.",
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HFILL
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}
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},
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{ &hf_mmse_expiry_rel,
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{ "X-Mms-Expiry", "mmse.expiry.rel",
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FT_RELATIVE_TIME, BASE_NONE, NULL, 0x00,
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"Delay before message expires and need not be delivered anymore.",
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HFILL
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}
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},
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{ &hf_mmse_from,
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{ "From", "mmse.from",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Address of the message sender.",
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HFILL
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}
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},
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{ &hf_mmse_message_class_id,
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{ "X-Mms-Message-Class", "mmse.message_class.id",
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FT_UINT8, BASE_HEX, VALS(vals_message_class), 0x00,
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"Of what category is the message.",
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HFILL
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}
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},
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{ &hf_mmse_message_class_str,
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{ "X-Mms-Message-Class", "mmse.message_class.str",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Of what category is the message.",
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HFILL
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}
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},
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{ &hf_mmse_message_id,
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{ "Message-Id", "mmse.message_id",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Unique identification of the message.",
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HFILL
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}
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},
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{ &hf_mmse_message_size,
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{ "X-Mms-Message-Size", "mmse.message_size",
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FT_UINT32, BASE_DEC, NULL, 0x00,
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"The size of the message in octets.",
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HFILL
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}
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},
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{ &hf_mmse_priority,
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{ "X-Mms-Priority", "mmse.priority",
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FT_UINT8, BASE_HEX, VALS(vals_priority), 0x00,
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"Priority of the message.",
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HFILL
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}
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},
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{ &hf_mmse_read_reply,
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{ "X-Mms-Read-Reply", "mmse.read_reply",
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FT_UINT8, BASE_HEX, VALS(vals_yes_no), 0x00,
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"Whether a read report from every recipient is wanted.",
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HFILL
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}
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},
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{ &hf_mmse_read_report,
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{ "X-Mms-Read-Report", "mmse.read_report",
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FT_UINT8, BASE_HEX, VALS(vals_yes_no), 0x00,
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"Whether a read report from every recipient is wanted.",
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HFILL
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}
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},
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{ &hf_mmse_report_allowed,
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{ "X-Mms-Report-Allowed", "mmse.report_allowed",
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FT_UINT8, BASE_HEX, VALS(vals_yes_no), 0x00,
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"Sending of delivery report allowed or not.",
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HFILL
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}
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},
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{ &hf_mmse_response_status,
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{ "Response-Status", "mmse.response_status",
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FT_UINT8, BASE_HEX, VALS(vals_response_status), 0x00,
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"MMS-specific result of a message submission or retrieval.",
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HFILL
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}
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},
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{ &hf_mmse_response_text,
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{ "Response-Text", "mmse.response_text",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Additional information on MMS-specific result.",
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HFILL
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}
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},
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{ &hf_mmse_sender_visibility,
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{ "Sender-Visibility", "mmse.sender_visibility",
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FT_UINT8, BASE_HEX, VALS(vals_sender_visibility), 0x00,
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"Disclose sender identity to receiver or not.",
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HFILL
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}
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},
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{ &hf_mmse_status,
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{ "Status", "mmse.status",
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FT_UINT8, BASE_HEX, VALS(vals_message_status), 0x00,
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"Current status of the message.",
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HFILL
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}
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},
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{ &hf_mmse_subject,
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{ "Subject", "mmse.subject",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Subject of the message.",
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HFILL
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}
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},
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{ &hf_mmse_to,
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{ "To", "mmse.to",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Recipient(s) of the message.",
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HFILL
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}
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},
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{ &hf_mmse_content_type,
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{ "Data", "mmse.content_type",
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FT_NONE, BASE_NONE, NULL, 0x00,
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"Media content of the message.",
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HFILL
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}
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},
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{ &hf_mmse_ffheader,
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{ "Free format (not encoded) header", "mmse.ffheader",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Application header without corresponding encoding.",
|
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HFILL
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}
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},
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/* MMSE 1.1 */
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{ &hf_mmse_retrieve_status,
|
|
{ "X-Mms-Retrieve-Status", "mmse.retrieve_status",
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|
FT_UINT8, BASE_HEX, VALS(vals_retrieve_status), 0x00,
|
|
"MMS-specific result of a message retrieval.",
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HFILL
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}
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},
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{ &hf_mmse_retrieve_text,
|
|
{ "X-Mms-Retrieve-Text", "mmse.retrieve_text",
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FT_STRING, BASE_NONE, NULL, 0x00,
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"Status text of a MMS message retrieval.",
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HFILL
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}
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},
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{ &hf_mmse_read_status,
|
|
{ "X-Mms-Read-Status", "mmse.read_status",
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FT_UINT8, BASE_HEX, VALS(vals_read_status), 0x00,
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"MMS-specific message read status.",
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HFILL
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}
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},
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{ &hf_mmse_reply_charging,
|
|
{ "X-Mms-Reply-Charging", "mmse.reply_charging",
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FT_UINT8, BASE_HEX, VALS(vals_reply_charging), 0x00,
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"MMS-specific message reply charging method.",
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HFILL
|
|
}
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},
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{ &hf_mmse_reply_charging_deadline_abs,
|
|
{ "X-Mms-Reply-Charging-Deadline", "mmse.reply_charging_deadline.abs",
|
|
FT_ABSOLUTE_TIME, BASE_NONE, NULL, 0x00,
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|
"The latest time of the recipient(s) to submit the Reply MM.",
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HFILL
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}
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},
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{ &hf_mmse_reply_charging_deadline_rel,
|
|
{ "X-Mms-Reply-Charging-Deadline", "mmse.reply_charging_deadline.rel",
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FT_RELATIVE_TIME, BASE_NONE, NULL, 0x00,
|
|
"The latest time of the recipient(s) to submit the Reply MM.",
|
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HFILL
|
|
}
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},
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{ &hf_mmse_reply_charging_id,
|
|
{ "X-Mms-Reply-Charging-Id", "mmse.reply_charging_id",
|
|
FT_STRING, BASE_NONE, NULL, 0x00,
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|
"Unique reply charging identification of the message.",
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HFILL
|
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}
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},
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{ &hf_mmse_reply_charging_size,
|
|
{ "X-Mms-Reply-Charging-Size", "mmse.reply_charging_size",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
"The size of the reply charging in octets.",
|
|
HFILL
|
|
}
|
|
},
|
|
{ &hf_mmse_prev_sent_by,
|
|
{ "X-Mms-Previously-Sent-By", "mmse.previously_sent_by",
|
|
FT_STRING, BASE_NONE, NULL, 0x00,
|
|
"Indicates that the MM has been previously sent by this user.",
|
|
HFILL
|
|
}
|
|
},
|
|
{ &hf_mmse_prev_sent_by_fwd_count,
|
|
{ "Forward Count", "mmse.previously_sent_by.forward_count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
"Forward count of the previously sent MM.",
|
|
HFILL
|
|
}
|
|
},
|
|
{ &hf_mmse_prev_sent_by_address,
|
|
{ "Address", "mmse.previously_sent_by.address",
|
|
FT_STRING, BASE_NONE, NULL, 0x00,
|
|
"Indicates from whom the MM has been previously sent.",
|
|
HFILL
|
|
}
|
|
},
|
|
{ &hf_mmse_prev_sent_date,
|
|
{ "X-Mms-Previously-Sent-Date", "mmse.previously_sent_date",
|
|
FT_STRING, BASE_NONE, NULL, 0x00,
|
|
"Indicates the date that the MM has been previously sent.",
|
|
HFILL
|
|
}
|
|
},
|
|
{ &hf_mmse_prev_sent_date_fwd_count,
|
|
{ "Forward Count", "mmse.previously_sent_date.forward_count",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00,
|
|
"Forward count of the previously sent MM.",
|
|
HFILL
|
|
}
|
|
},
|
|
{ &hf_mmse_prev_sent_date_date,
|
|
{ "Date", "mmse.previously_sent_date.date",
|
|
FT_STRING, BASE_NONE, NULL, 0x00,
|
|
"Time when the MM has been previously sent.",
|
|
HFILL
|
|
}
|
|
},
|
|
|
|
|
|
|
|
};
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_mmse,
|
|
&ett_mmse_hdr_details,
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_mmse = proto_register_protocol("MMS Message Encapsulation",
|
|
"MMSE", "mmse");
|
|
|
|
/* Required function calls to register header fields and subtrees used */
|
|
proto_register_field_array(proto_mmse, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
/* If this dissector uses sub-dissector registration add registration routine.
|
|
* This format is required because a script is used to find these routines and
|
|
* create the code that calls these routines.
|
|
*/
|
|
void
|
|
proto_reg_handoff_mmse(void)
|
|
{
|
|
dissector_handle_t mmse_standalone_handle;
|
|
dissector_handle_t mmse_encapsulated_handle;
|
|
|
|
heur_dissector_add("wsp", dissect_mmse_heur, proto_mmse);
|
|
mmse_standalone_handle = create_dissector_handle(
|
|
dissect_mmse_standalone, proto_mmse);
|
|
mmse_encapsulated_handle = create_dissector_handle(
|
|
dissect_mmse_encapsulated, proto_mmse);
|
|
/* As the media types for WSP and HTTP are the same, the WSP dissector
|
|
* uses the same string dissector table as the HTTP protocol. */
|
|
dissector_add_string("media_type",
|
|
"application/vnd.wap.mms-message", mmse_standalone_handle);
|
|
dissector_add_string("multipart_media_type",
|
|
"application/vnd.wap.mms-message", mmse_encapsulated_handle);
|
|
}
|