![Jeff Morriss](/assets/img/avatar_default.png)
(as referenced in https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2907 ) and https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3411 : Write a new convenience routine for finding a conversation and, if it is not found, create it. The frame number and addresses are taken from pinfo (as is the common case). Use this function in a bunch of dissectors. svn path=/trunk/; revision=32790
2165 lines
64 KiB
C
2165 lines
64 KiB
C
/* packet-mysql.c
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* Routines for mysql packet dissection
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*
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* Huagang XIE <huagang@intruvert.com>
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*
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* MySQL 4.1+ protocol by Axel Schwenke <axel@mysql.com>
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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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* Copied from packet-tftp.c
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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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* the protocol spec at
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* http://public.logicacmg.com/~redferni/mysql/MySQL-Protocol.html
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* http://forge.mysql.com/wiki/MySQL_Internals_ClientServer_Protocol
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* and MySQL source code
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*/
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/* create extra output for conversation tracking */
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/* #define CTDEBUG 1 */
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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 <glib.h>
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#include <epan/packet.h>
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#include <epan/conversation.h>
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#include <epan/emem.h>
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#include <epan/dissectors/packet-tcp.h>
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#include <epan/prefs.h>
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/* port for protocol registration */
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#define TCP_PORT_MySQL 3306
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/* client/server capabilities */
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#define MYSQL_CAPS_LP 0x0001
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#define MYSQL_CAPS_FR 0x0002
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#define MYSQL_CAPS_LF 0x0004
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#define MYSQL_CAPS_CD 0x0008
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#define MYSQL_CAPS_NS 0x0010
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#define MYSQL_CAPS_CP 0x0020
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#define MYSQL_CAPS_OB 0x0040
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#define MYSQL_CAPS_LI 0x0080
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#define MYSQL_CAPS_IS 0x0100
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#define MYSQL_CAPS_CU 0x0200
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#define MYSQL_CAPS_IA 0x0400
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#define MYSQL_CAPS_SL 0x0800
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#define MYSQL_CAPS_II 0x1000
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#define MYSQL_CAPS_TA 0x2000
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#define MYSQL_CAPS_RS 0x4000
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#define MYSQL_CAPS_SC 0x8000
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/* field flags */
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#define MYSQL_FLD_NOT_NULL_FLAG 0x0001
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#define MYSQL_FLD_PRI_KEY_FLAG 0x0002
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#define MYSQL_FLD_UNIQUE_KEY_FLAG 0x0004
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#define MYSQL_FLD_MULTIPLE_KEY_FLAG 0x0008
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#define MYSQL_FLD_BLOB_FLAG 0x0010
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#define MYSQL_FLD_UNSIGNED_FLAG 0x0020
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#define MYSQL_FLD_ZEROFILL_FLAG 0x0040
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#define MYSQL_FLD_BINARY_FLAG 0x0080
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#define MYSQL_FLD_ENUM_FLAG 0x0100
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#define MYSQL_FLD_AUTO_INCREMENT_FLAG 0x0200
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#define MYSQL_FLD_TIMESTAMP_FLAG 0x0400
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#define MYSQL_FLD_SET_FLAG 0x0800
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/* extended capabilities: 4.1+ client only */
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#define MYSQL_CAPS_MS 0x0001
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#define MYSQL_CAPS_MR 0x0002
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/* status bitfield */
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#define MYSQL_STAT_IT 0x0001
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#define MYSQL_STAT_AC 0x0002
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#define MYSQL_STAT_MR 0x0004
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#define MYSQL_STAT_MU 0x0008
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#define MYSQL_STAT_BI 0x0010
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#define MYSQL_STAT_NI 0x0020
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#define MYSQL_STAT_CR 0x0040
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#define MYSQL_STAT_LR 0x0080
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#define MYSQL_STAT_DR 0x0100
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#define MYSQL_STAT_BS 0x0200
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/* bitfield for MYSQL_REFRESH */
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#define MYSQL_RFSH_GRANT 1 /* Refresh grant tables */
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#define MYSQL_RFSH_LOG 2 /* Start on new log file */
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#define MYSQL_RFSH_TABLES 4 /* close all tables */
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#define MYSQL_RFSH_HOSTS 8 /* Flush host cache */
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#define MYSQL_RFSH_STATUS 16 /* Flush status variables */
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#define MYSQL_RFSH_THREADS 32 /* Flush thread cache */
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#define MYSQL_RFSH_SLAVE 64 /* Reset master info and restart slave thread */
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#define MYSQL_RFSH_MASTER 128 /* Remove all bin logs in the index and truncate the index */
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/* MySQL operation codes */
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#define MYSQL_SLEEP 0 /* not from client */
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#define MYSQL_QUIT 1
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#define MYSQL_INIT_DB 2
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#define MYSQL_QUERY 3
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#define MYSQL_FIELD_LIST 4
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#define MYSQL_CREATE_DB 5
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#define MYSQL_DROP_DB 6
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#define MYSQL_REFRESH 7
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#define MYSQL_SHUTDOWN 8
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#define MYSQL_STATISTICS 9
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#define MYSQL_PROCESS_INFO 10
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#define MYSQL_CONNECT 11 /* not from client */
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#define MYSQL_PROCESS_KILL 12
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#define MYSQL_DEBUG 13
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#define MYSQL_PING 14
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#define MYSQL_TIME 15 /* not from client */
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#define MYSQL_DELAY_INSERT 16 /* not from client */
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#define MYSQL_CHANGE_USER 17
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#define MYSQL_BINLOG_DUMP 18 /* replication */
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#define MYSQL_TABLE_DUMP 19 /* replication */
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#define MYSQL_CONNECT_OUT 20 /* replication */
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#define MYSQL_REGISTER_SLAVE 21 /* replication */
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#define MYSQL_STMT_PREPARE 22
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#define MYSQL_STMT_EXECUTE 23
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#define MYSQL_STMT_SEND_LONG_DATA 24
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#define MYSQL_STMT_CLOSE 25
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#define MYSQL_STMT_RESET 26
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#define MYSQL_SET_OPTION 27
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#define MYSQL_STMT_FETCH 28
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/* decoding table: opcodes */
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static const value_string mysql_opcode_vals[] = {
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{MYSQL_SLEEP, "SLEEP"},
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{MYSQL_QUIT, "Quit"},
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{MYSQL_INIT_DB, "Use Database"},
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{MYSQL_QUERY, "Query"},
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{MYSQL_FIELD_LIST, "Show Fields"},
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{MYSQL_CREATE_DB, "Create Database"},
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{MYSQL_DROP_DB , "Drop Database"},
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{MYSQL_REFRESH , "Refresh"},
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{MYSQL_SHUTDOWN , "Shutdown"},
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{MYSQL_STATISTICS , "Statistics"},
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{MYSQL_PROCESS_INFO , "Process List"},
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{MYSQL_CONNECT , "Connect"},
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{MYSQL_PROCESS_KILL , "Kill Server Thread"},
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{MYSQL_DEBUG , "Dump Debuginfo"},
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{MYSQL_PING , "Ping"},
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{MYSQL_TIME , "Time"},
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{MYSQL_DELAY_INSERT , "Insert Delayed"},
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{MYSQL_CHANGE_USER , "Change User"},
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{MYSQL_BINLOG_DUMP , "Send Binlog"},
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{MYSQL_TABLE_DUMP, "Send Table"},
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{MYSQL_CONNECT_OUT, "Slave Connect"},
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{MYSQL_REGISTER_SLAVE, "Register Slave"},
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{MYSQL_STMT_PREPARE, "Prepare Statement"},
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{MYSQL_STMT_EXECUTE, "Execute Statement"},
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{MYSQL_STMT_SEND_LONG_DATA, "Send BLOB"},
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{MYSQL_STMT_CLOSE, "Close Statement"},
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{MYSQL_STMT_RESET, "Reset Statement"},
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{MYSQL_SET_OPTION, "Set Option"},
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{MYSQL_STMT_FETCH, "Fetch Data"},
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{0, NULL}
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};
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/* charset: pre-4.1 used ther term 'charset', later changed to 'collation' */
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static const value_string mysql_charset_vals[] = {
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{1, "big5"},
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{2, "czech"},
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{3, "dec8"},
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{4, "dos" },
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{5, "german1"},
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{6, "hp8"},
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{7, "koi8_ru"},
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{8, "latin1"},
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{9, "latin2"},
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{9, "swe7 "},
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{10, "usa7"},
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{11, "ujis"},
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{12, "sjis"},
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{13, "cp1251"},
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{14, "danish"},
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{15, "hebrew"},
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{16, "win1251"},
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{17, "tis620"},
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{18, "euc_kr"},
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{19, "estonia"},
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{20, "hungarian"},
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{21, "koi8_ukr"},
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{22, "win1251ukr"},
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{23, "gb2312"},
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{24, "greek"},
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{25, "win1250"},
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{26, "croat"},
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{27, "gbk"},
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{28, "cp1257"},
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{29, "latin5"},
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{0, NULL}
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};
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/* collation codes may change over time, recreate with the following SQL
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SELECT CONCAT(' {', ID, ',"', CHARACTER_SET_NAME,
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' COLLATE ', COLLATION_NAME, '"},')
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FROM INFORMATION_SCHEMA.COLLATIONS
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ORDER BY ID
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INTO OUTFILE '/tmp/mysql-collations';
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*/
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static const value_string mysql_collation_vals[] = {
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{3, "dec8 COLLATE dec8_swedish_ci"},
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{4, "cp850 COLLATE cp850_general_ci"},
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{5, "latin1 COLLATE latin1_german1_ci"},
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{6, "hp8 COLLATE hp8_english_ci"},
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{7, "koi8r COLLATE koi8r_general_ci"},
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{8, "latin1 COLLATE latin1_swedish_ci"},
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{9, "latin2 COLLATE latin2_general_ci"},
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{10, "swe7 COLLATE swe7_swedish_ci"},
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{11, "ascii COLLATE ascii_general_ci"},
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{14, "cp1251 COLLATE cp1251_bulgarian_ci"},
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{15, "latin1 COLLATE latin1_danish_ci"},
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{16, "hebrew COLLATE hebrew_general_ci"},
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{20, "latin7 COLLATE latin7_estonian_cs"},
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{21, "latin2 COLLATE latin2_hungarian_ci"},
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{22, "koi8u COLLATE koi8u_general_ci"},
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{23, "cp1251 COLLATE cp1251_ukrainian_ci"},
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{25, "greek COLLATE greek_general_ci"},
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{26, "cp1250 COLLATE cp1250_general_ci"},
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{27, "latin2 COLLATE latin2_croatian_ci"},
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{29, "cp1257 COLLATE cp1257_lithuanian_ci"},
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{30, "latin5 COLLATE latin5_turkish_ci"},
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{31, "latin1 COLLATE latin1_german2_ci"},
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{32, "armscii8 COLLATE armscii8_general_ci"},
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{33, "utf8 COLLATE utf8_general_ci"},
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{36, "cp866 COLLATE cp866_general_ci"},
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{37, "keybcs2 COLLATE keybcs2_general_ci"},
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{38, "macce COLLATE macce_general_ci"},
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{39, "macroman COLLATE macroman_general_ci"},
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{40, "cp852 COLLATE cp852_general_ci"},
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{41, "latin7 COLLATE latin7_general_ci"},
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{42, "latin7 COLLATE latin7_general_cs"},
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{43, "macce COLLATE macce_bin"},
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{44, "cp1250 COLLATE cp1250_croatian_ci"},
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{47, "latin1 COLLATE latin1_bin"},
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{48, "latin1 COLLATE latin1_general_ci"},
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{49, "latin1 COLLATE latin1_general_cs"},
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{50, "cp1251 COLLATE cp1251_bin"},
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{51, "cp1251 COLLATE cp1251_general_ci"},
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{52, "cp1251 COLLATE cp1251_general_cs"},
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{53, "macroman COLLATE macroman_bin"},
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{57, "cp1256 COLLATE cp1256_general_ci"},
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{58, "cp1257 COLLATE cp1257_bin"},
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{59, "cp1257 COLLATE cp1257_general_ci"},
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{63, "binary COLLATE binary"},
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{64, "armscii8 COLLATE armscii8_bin"},
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{65, "ascii COLLATE ascii_bin"},
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{66, "cp1250 COLLATE cp1250_bin"},
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{67, "cp1256 COLLATE cp1256_bin"},
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{68, "cp866 COLLATE cp866_bin"},
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{69, "dec8 COLLATE dec8_bin"},
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{70, "greek COLLATE greek_bin"},
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{71, "hebrew COLLATE hebrew_bin"},
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{72, "hp8 COLLATE hp8_bin"},
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{73, "keybcs2 COLLATE keybcs2_bin"},
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{74, "koi8r COLLATE koi8r_bin"},
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{75, "koi8u COLLATE koi8u_bin"},
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{77, "latin2 COLLATE latin2_bin"},
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{78, "latin5 COLLATE latin5_bin"},
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{79, "latin7 COLLATE latin7_bin"},
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{80, "cp850 COLLATE cp850_bin"},
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{81, "cp852 COLLATE cp852_bin"},
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{82, "swe7 COLLATE swe7_bin"},
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{83, "utf8 COLLATE utf8_bin"},
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{92, "geostd8 COLLATE geostd8_general_ci"},
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{93, "geostd8 COLLATE geostd8_bin"},
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{94, "latin1 COLLATE latin1_spanish_ci"},
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{99, "cp1250 COLLATE cp1250_polish_ci"},
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{192, "utf8 COLLATE utf8_unicode_ci"},
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{193, "utf8 COLLATE utf8_icelandic_ci"},
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{194, "utf8 COLLATE utf8_latvian_ci"},
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{195, "utf8 COLLATE utf8_romanian_ci"},
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{196, "utf8 COLLATE utf8_slovenian_ci"},
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{197, "utf8 COLLATE utf8_polish_ci"},
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{198, "utf8 COLLATE utf8_estonian_ci"},
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{199, "utf8 COLLATE utf8_spanish_ci"},
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{200, "utf8 COLLATE utf8_swedish_ci"},
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{201, "utf8 COLLATE utf8_turkish_ci"},
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{202, "utf8 COLLATE utf8_czech_ci"},
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{203, "utf8 COLLATE utf8_danish_ci"},
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{204, "utf8 COLLATE utf8_lithuanian_ci"},
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{205, "utf8 COLLATE utf8_slovak_ci"},
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{206, "utf8 COLLATE utf8_spanish2_ci"},
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{207, "utf8 COLLATE utf8_roman_ci"},
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{208, "utf8 COLLATE utf8_persian_ci"},
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{209, "utf8 COLLATE utf8_esperanto_ci"},
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{210, "utf8 COLLATE utf8_hungarian_ci"},
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{0, NULL}
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};
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/* allowed MYSQL_SHUTDOWN levels */
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static const value_string mysql_shutdown_vals[] = {
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{0, "default"},
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{1, "wait for connections to finish"},
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{2, "wait for transactions to finish"},
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{8, "wait for updates to finish"},
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{16, "wait flush all buffers"},
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{17, "wait flush critical buffers"},
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{254, "kill running queries"},
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{255, "kill connections"},
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{0, NULL}
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};
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/* allowed MYSQL_SET_OPTION values */
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static const value_string mysql_option_vals[] = {
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{0, "multi statements on"},
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{1, "multi statements off"},
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{0, NULL}
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};
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/* protocol id */
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static int proto_mysql = -1;
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/* dissector configuration */
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static gboolean mysql_desegment = TRUE;
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static gboolean mysql_showquery = FALSE;
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/* expand-the-tree flags */
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static gint ett_mysql = -1;
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static gint ett_server_greeting = -1;
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static gint ett_caps = -1;
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static gint ett_extcaps = -1;
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static gint ett_stat = -1;
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static gint ett_request = -1;
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static gint ett_refresh = -1;
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static gint ett_field_flags = -1;
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/* protocol fields */
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static int hf_mysql_caps= -1;
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static int hf_mysql_cap_long_password= -1;
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static int hf_mysql_cap_found_rows= -1;
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static int hf_mysql_cap_long_flag= -1;
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static int hf_mysql_cap_connect_with_db= -1;
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static int hf_mysql_cap_no_schema= -1;
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static int hf_mysql_cap_compress= -1;
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static int hf_mysql_cap_odbc= -1;
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static int hf_mysql_cap_local_files= -1;
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static int hf_mysql_cap_ignore_space= -1;
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static int hf_mysql_cap_change_user= -1;
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static int hf_mysql_cap_interactive= -1;
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static int hf_mysql_cap_ssl= -1;
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static int hf_mysql_cap_ignore_sigpipe= -1;
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static int hf_mysql_cap_transactions= -1;
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static int hf_mysql_cap_reserved= -1;
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static int hf_mysql_cap_secure_connect= -1;
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static int hf_mysql_extcaps= -1;
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static int hf_mysql_cap_multi_statements= -1;
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static int hf_mysql_cap_multi_results= -1;
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static int hf_mysql_status= -1;
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static int hf_mysql_stat_it= -1;
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static int hf_mysql_stat_ac= -1;
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static int hf_mysql_stat_mr= -1;
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static int hf_mysql_stat_mu= -1;
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static int hf_mysql_stat_bi= -1;
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static int hf_mysql_stat_ni= -1;
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static int hf_mysql_stat_cr= -1;
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static int hf_mysql_stat_lr= -1;
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static int hf_mysql_stat_dr= -1;
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static int hf_mysql_stat_bs= -1;
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static int hf_mysql_refresh= -1;
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static int hf_mysql_rfsh_grants= -1;
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static int hf_mysql_rfsh_log= -1;
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static int hf_mysql_rfsh_tables= -1;
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static int hf_mysql_rfsh_hosts= -1;
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static int hf_mysql_rfsh_status= -1;
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static int hf_mysql_rfsh_threads= -1;
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static int hf_mysql_rfsh_slave= -1;
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static int hf_mysql_rfsh_master= -1;
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static int hf_mysql_packet_length= -1;
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static int hf_mysql_packet_number= -1;
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static int hf_mysql_opcode= -1;
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static int hf_mysql_response_code= -1;
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static int hf_mysql_error_code= -1;
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static int hf_mysql_error_string= -1;
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static int hf_mysql_sqlstate= -1;
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static int hf_mysql_message= -1;
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static int hf_mysql_payload= -1;
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static int hf_mysql_protocol= -1;
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static int hf_mysql_version = -1;
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static int hf_mysql_max_packet= -1;
|
|
static int hf_mysql_user= -1;
|
|
static int hf_mysql_schema= -1;
|
|
static int hf_mysql_thread_id = -1;
|
|
static int hf_mysql_salt= -1;
|
|
static int hf_mysql_salt2= -1;
|
|
static int hf_mysql_charset= -1;
|
|
static int hf_mysql_passwd= -1;
|
|
static int hf_mysql_unused= -1;
|
|
static int hf_mysql_parameter= -1;
|
|
static int hf_mysql_affected_rows= -1;
|
|
static int hf_mysql_insert_id= -1;
|
|
static int hf_mysql_num_warn= -1;
|
|
static int hf_mysql_thd_id= -1;
|
|
static int hf_mysql_stmt_id= -1;
|
|
static int hf_mysql_query= -1;
|
|
static int hf_mysql_option= -1;
|
|
static int hf_mysql_num_rows= -1;
|
|
static int hf_mysql_param= -1;
|
|
static int hf_mysql_exec_flags= -1;
|
|
static int hf_mysql_exec_iter= -1;
|
|
static int hf_mysql_eof= -1;
|
|
static int hf_mysql_num_fields= -1;
|
|
static int hf_mysql_extra= -1;
|
|
static int hf_mysql_fld_catalog = -1;
|
|
static int hf_mysql_fld_db = -1;
|
|
static int hf_mysql_fld_table = -1;
|
|
static int hf_mysql_fld_org_table = -1;
|
|
static int hf_mysql_fld_name = -1;
|
|
static int hf_mysql_fld_org_name = -1;
|
|
static int hf_mysql_fld_charsetnr = -1;
|
|
static int hf_mysql_fld_length = -1;
|
|
static int hf_mysql_fld_type = -1;
|
|
static int hf_mysql_fld_flags = -1;
|
|
static int hf_mysql_fld_not_null = -1;
|
|
static int hf_mysql_fld_primary_key = -1;
|
|
static int hf_mysql_fld_unique_key = -1;
|
|
static int hf_mysql_fld_multiple_key = -1;
|
|
static int hf_mysql_fld_blob = -1;
|
|
static int hf_mysql_fld_unsigned = -1;
|
|
static int hf_mysql_fld_zero_fill = -1;
|
|
static int hf_mysql_fld_binary = -1;
|
|
static int hf_mysql_fld_enum = -1;
|
|
static int hf_mysql_fld_auto_increment = -1;
|
|
static int hf_mysql_fld_timestamp = -1;
|
|
static int hf_mysql_fld_set = -1;
|
|
static int hf_mysql_fld_decimals = -1;
|
|
static int hf_mysql_row_length = -1;
|
|
static int hf_mysql_row_text = -1;
|
|
|
|
/* type constants */
|
|
static const value_string type_constants[] =
|
|
{
|
|
{0x00, "FIELD_TYPE_DECIMAL" },
|
|
{0x01, "FIELD_TYPE_TINY" },
|
|
{0x02, "FIELD_TYPE_SHORT" },
|
|
{0x03, "FIELD_TYPE_LONG" },
|
|
{0x04, "FIELD_TYPE_FLOAT" },
|
|
{0x05, "FIELD_TYPE_DOUBLE" },
|
|
{0x06, "FIELD_TYPE_NULL" },
|
|
{0x07, "FIELD_TYPE_TIMESTAMP" },
|
|
{0x08, "FIELD_TYPE_LONGLONG" },
|
|
{0x09, "FIELD_TYPE_INT24" },
|
|
{0x0a, "FIELD_TYPE_DATE" },
|
|
{0x0b, "FIELD_TYPE_TIME" },
|
|
{0x0c, "FIELD_TYPE_DATETIME" },
|
|
{0x0d, "FIELD_TYPE_YEAR" },
|
|
{0x0e, "FIELD_TYPE_NEWDATE" },
|
|
{0x0f, "FIELD_TYPE_VARCHAR" },
|
|
{0x10, "FIELD_TYPE_BIT" },
|
|
{0xf6, "FIELD_TYPE_NEWDECIMAL" },
|
|
{0xf7, "FIELD_TYPE_ENUM" },
|
|
{0xf8, "FIELD_TYPE_SET" },
|
|
{0xf9, "FIELD_TYPE_TINY_BLOB" },
|
|
{0xfa, "FIELD_TYPE_MEDIUM_BLOB"},
|
|
{0xfb, "FIELD_TYPE_LONG_BLOB" },
|
|
{0xfc, "FIELD_TYPE_BLOB" },
|
|
{0xfd, "FIELD_TYPE_VAR_STRING" },
|
|
{0xfe, "FIELD_TYPE_STRING" },
|
|
{0xff, "FIELD_TYPE_GEOMETRY" },
|
|
{0, NULL}
|
|
};
|
|
|
|
typedef enum mysql_state
|
|
{
|
|
UNDEFINED,
|
|
LOGIN,
|
|
REQUEST,
|
|
RESPONSE_OK,
|
|
RESPONSE_MESSAGE,
|
|
RESPONSE_TABULAR,
|
|
FIELD_PACKET,
|
|
ROW_PACKET,
|
|
RESPONSE_PREPARE,
|
|
PARAM_PACKET
|
|
} mysql_state_t;
|
|
|
|
#ifdef CTDEBUG
|
|
static const value_string state_vals[] = {
|
|
{UNDEFINED, "undefined"},
|
|
{LOGIN, "login"},
|
|
{REQUEST, "request"},
|
|
{RESPONSE_OK, "response OK"},
|
|
{RESPONSE_MESSAGE, "response message"},
|
|
{RESPONSE_TABULAR, "tabular response"},
|
|
{FIELD_PACKET, "field packet"},
|
|
{ROW_PACKET, "row packet"},
|
|
{RESPONSE_PREPARE, "response to PREPARE"},
|
|
{PARAM_PACKET, "parameter packet"},
|
|
{0, NULL}
|
|
};
|
|
#endif
|
|
|
|
typedef struct mysql_conn_data
|
|
{
|
|
guint16 srv_caps;
|
|
guint16 clnt_caps;
|
|
guint16 clnt_caps_ext;
|
|
mysql_state_t state;
|
|
GHashTable* stmts;
|
|
#ifdef CTDEBUG
|
|
guint32 generation;
|
|
#endif
|
|
} mysql_conn_data_t;
|
|
|
|
struct mysql_frame_data {
|
|
mysql_state_t state;
|
|
};
|
|
|
|
typedef struct my_stmt_data
|
|
{
|
|
guint16 nparam;
|
|
} my_stmt_data_t;
|
|
|
|
|
|
/* function prototypes */
|
|
static void dissect_mysql(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
|
|
static guint get_mysql_pdu_len(packet_info *pinfo, tvbuff_t *tvb, int offset);
|
|
static void dissect_mysql_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
|
|
static int mysql_dissect_login(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree, mysql_conn_data_t *conn_data);
|
|
static int mysql_dissect_greeting(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree, mysql_conn_data_t *conn_data);
|
|
static int mysql_dissect_request(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree, mysql_conn_data_t *conn_data);
|
|
static int mysql_dissect_response(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree, mysql_conn_data_t *conn_data);
|
|
static int mysql_dissect_error_packet(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree);
|
|
static int mysql_dissect_ok_packet(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree, mysql_conn_data_t *conn_data);
|
|
static int mysql_dissect_server_status(tvbuff_t *tvb, int offset, proto_tree *tree);
|
|
static void mysql_dissect_collation(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 caps, gint charset, int field);
|
|
static int mysql_dissect_caps(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 *caps, const char* whom);
|
|
static int mysql_dissect_ext_caps(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 *caps, const char* whom);
|
|
static int mysql_dissect_result_header(tvbuff_t *tvb, packet_info *pinfo, int offset, proto_tree *tree, mysql_conn_data_t *conn_data);
|
|
static int mysql_dissect_field_packet(tvbuff_t *tvb, int offset, proto_tree *tree, mysql_conn_data_t *conn_data);
|
|
static int mysql_dissect_row_packet(tvbuff_t *tvb, int offset, proto_tree *tree);
|
|
static int mysql_dissect_response_prepare(tvbuff_t *tvb, int offset, proto_tree *tree);
|
|
static int mysql_dissect_param_packet(tvbuff_t *tvb, int offset, proto_tree *tree);
|
|
static gint my_tvb_strsize(tvbuff_t *tvb, int offset);
|
|
static int tvb_get_fle(tvbuff_t *tvb, int offset, guint64 *res, guint8 *is_null);
|
|
|
|
|
|
/* dissector registration */
|
|
void proto_reg_handoff_mysql(void)
|
|
{
|
|
dissector_handle_t mysql_handle;
|
|
mysql_handle = create_dissector_handle(dissect_mysql, proto_mysql);
|
|
dissector_add("tcp.port", TCP_PORT_MySQL, mysql_handle);
|
|
}
|
|
|
|
/* protocol registration */
|
|
void proto_register_mysql(void)
|
|
{
|
|
static hf_register_info hf[]=
|
|
{
|
|
{ &hf_mysql_packet_length,
|
|
{ "Packet Length", "mysql.packet_length",
|
|
FT_UINT24, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_packet_number,
|
|
{ "Packet Number", "mysql.packet_number",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_opcode,
|
|
{ "Command", "mysql.opcode",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_response_code,
|
|
{ "Response Code", "mysql.response_code",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_error_code,
|
|
{ "Error Code", "mysql.error_code",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_error_string,
|
|
{ "Error message", "mysql.error.message",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Error string in case of MySQL error message", HFILL }},
|
|
|
|
{ &hf_mysql_sqlstate,
|
|
{ "SQL state", "mysql.sqlstate",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_message,
|
|
{ "Message", "mysql.message",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_protocol,
|
|
{ "Protocol", "mysql.protocol",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Protocol Version", HFILL }},
|
|
|
|
{ &hf_mysql_version,
|
|
{ "Version", "mysql.version",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
"MySQL Version", HFILL }},
|
|
|
|
{ &hf_mysql_caps,
|
|
{ "Caps", "mysql.caps",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"MySQL Capabilities", HFILL }},
|
|
|
|
{ &hf_mysql_cap_long_password,
|
|
{ "Long Password","mysql.caps.lp",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_LP,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_found_rows,
|
|
{ "Found Rows","mysql.caps.fr",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_FR,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_long_flag,
|
|
{ "Long Column Flags","mysql.caps.lf",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_LF,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_connect_with_db,
|
|
{ "Connect With Database","mysql.caps.cd",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_CD,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_no_schema,
|
|
{ "Don't Allow database.table.column","mysql.caps.ns",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_NS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_compress,
|
|
{ "Can use compression protocol","mysql.caps.cp",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_CP,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_odbc,
|
|
{ "ODBC Client","mysql.caps.ob",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_OB,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_local_files,
|
|
{ "Can Use LOAD DATA LOCAL","mysql.caps.li",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_LI,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_ignore_space,
|
|
{ "Ignore Spaces before '('","mysql.caps.is",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_IS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_change_user,
|
|
{ "Speaks 4.1 protocol (new flag)","mysql.caps.cu",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_CU,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_interactive,
|
|
{ "Interactive Client","mysql.caps.ia",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_IA,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_ssl,
|
|
{ "Switch to SSL after handshake","mysql.caps.sl",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_SL,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_ignore_sigpipe,
|
|
{ "Ignore sigpipes","mysql.caps.ii",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_II,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_transactions,
|
|
{ "Knows about transactions","mysql.caps.ta",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_TA,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_reserved,
|
|
{ "Speaks 4.1 protocol (old flag)","mysql.caps.rs",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_RS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_secure_connect,
|
|
{ "Can do 4.1 authentication","mysql.caps.sc",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_SC,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_extcaps,
|
|
{ "Ext. Caps", "mysql.extcaps",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"MySQL Extended Capabilities", HFILL }},
|
|
|
|
{ &hf_mysql_cap_multi_statements,
|
|
{ "Supports multiple statements","mysql.caps.ms",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_MS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_cap_multi_results,
|
|
{ "Supports multiple results","mysql.caps.mr",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_CAPS_MR,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_max_packet,
|
|
{ "MAX Packet", "mysql.max_packet",
|
|
FT_UINT24, BASE_DEC, NULL, 0x0,
|
|
"MySQL Max packet", HFILL }},
|
|
|
|
{ &hf_mysql_user,
|
|
{ "Username", "mysql.user",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
"Login Username", HFILL }},
|
|
|
|
{ &hf_mysql_schema,
|
|
{ "Schema", "mysql.schema",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Login Schema", HFILL }},
|
|
|
|
{ &hf_mysql_salt,
|
|
{ "Salt", "mysql.salt",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_salt2,
|
|
{ "Salt", "mysql.salt2",
|
|
FT_STRINGZ, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_thread_id,
|
|
{ "Thread ID", "mysql.thread_id",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"MySQL Thread ID", HFILL }},
|
|
|
|
{ &hf_mysql_charset,
|
|
{ "Charset", "mysql.charset",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"MySQL Charset", HFILL }},
|
|
|
|
{ &hf_mysql_status,
|
|
{ "Status", "mysql.status",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"MySQL Status", HFILL }},
|
|
|
|
{ &hf_mysql_stat_it,
|
|
{ "In transaction", "mysql.stat.it",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_IT,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_ac,
|
|
{ "AUTO_COMMIT", "mysql.stat.ac",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_AC,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_mr,
|
|
{ "More results", "mysql.stat.mr",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_MR,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_mu,
|
|
{ "Multi query - more resultsets", "mysql.stat.mu",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_MU,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_bi,
|
|
{ "Bad index used", "mysql.stat.bi",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_BI,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_ni,
|
|
{ "No index used", "mysql.stat.ni",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_NI,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_cr,
|
|
{ "Cursor exists", "mysql.stat.cr",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_CR,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_lr,
|
|
{ "Last row sebd", "mysql.stat.lr",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_LR,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_dr,
|
|
{ "database dropped", "mysql.stat.dr",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_DR,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stat_bs,
|
|
{ "No backslash escapes", "mysql.stat.bs",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_STAT_BS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_refresh,
|
|
{ "Refresh Option", "mysql.refresh",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_grants,
|
|
{ "reload permissions", "mysql.rfsh.grants",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_GRANT,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_log,
|
|
{ "flush logfiles", "mysql.rfsh.log",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_LOG,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_tables,
|
|
{ "flush tables", "mysql.rfsh.tables",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_TABLES,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_hosts,
|
|
{ "flush hosts", "mysql.rfsh.hosts",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_HOSTS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_status,
|
|
{ "reset statistics", "mysql.rfsh.status",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_STATUS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_threads,
|
|
{ "empty thread cache", "mysql.rfsh.threads",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_THREADS,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_slave,
|
|
{ "flush slave status", "mysql.rfsh.slave",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_SLAVE,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_rfsh_master,
|
|
{ "flush master status", "mysql.rfsh.master",
|
|
FT_BOOLEAN, 8, TFS(&tfs_set_notset), MYSQL_RFSH_MASTER,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_unused,
|
|
{ "Unused", "mysql.unused",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_passwd,
|
|
{ "Password", "mysql.passwd",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_parameter,
|
|
{ "Parameter", "mysql.parameter",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_payload,
|
|
{ "Payload", "mysql.payload",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Additional Payload", HFILL }},
|
|
|
|
{ &hf_mysql_affected_rows,
|
|
{ "Affected Rows", "mysql.affected_rows",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_insert_id,
|
|
{ "Last INSERT ID", "mysql.insert_id",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_num_warn,
|
|
{ "Warnings", "mysql.warnings",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_thd_id,
|
|
{ "Thread ID", "mysql.thd_id",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_stmt_id,
|
|
{ "Statement ID", "mysql.stmt_id",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_query,
|
|
{ "Statement", "mysql.query",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_option,
|
|
{ "Option", "mysql.option",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_param,
|
|
{ "Parameter", "mysql.param",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_num_rows,
|
|
{ "Rows to fetch", "mysql.num_rows",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_exec_flags,
|
|
{ "Flags (unused)", "mysql.exec_flags",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_exec_iter,
|
|
{ "Iterations (unused)", "mysql.exec_iter",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_eof,
|
|
{ "EOF", "mysql.eof",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_num_fields,
|
|
{ "Number of fields", "mysql.num_fields",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_extra,
|
|
{ "Extra data", "mysql.extra",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_mysql_fld_catalog,
|
|
{ "Catalog", "mysql.field.catalog",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: catalog", HFILL }},
|
|
|
|
{ &hf_mysql_fld_db,
|
|
{ "Database", "mysql.field.db",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: database", HFILL }},
|
|
|
|
{ &hf_mysql_fld_table,
|
|
{ "Table", "mysql.field.table",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: table", HFILL }},
|
|
|
|
{ &hf_mysql_fld_org_table,
|
|
{ "Original table", "mysql.field.org_table",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: original table", HFILL }},
|
|
|
|
{ &hf_mysql_fld_name,
|
|
{ "Name", "mysql.field.name",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: name", HFILL }},
|
|
|
|
{ &hf_mysql_fld_org_name,
|
|
{ "Original name", "mysql.field.org_name",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: original name", HFILL }},
|
|
|
|
{ &hf_mysql_fld_charsetnr,
|
|
{ "Charset number", "mysql.field.charsetnr",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Field: charset number", HFILL }},
|
|
|
|
{ &hf_mysql_fld_length,
|
|
{ "Length", "mysql.field.length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
"Field: length", HFILL }},
|
|
|
|
{ &hf_mysql_fld_type,
|
|
{ "Type", "mysql.field.type",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: type", HFILL }},
|
|
|
|
{ &hf_mysql_fld_flags,
|
|
{ "Flags", "mysql.field.flags",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
"Field: flags", HFILL }},
|
|
|
|
{ &hf_mysql_fld_not_null,
|
|
{ "Not null", "mysql.field.flags.not_null",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_NOT_NULL_FLAG,
|
|
"Field: flag not null", HFILL }},
|
|
|
|
{ &hf_mysql_fld_primary_key,
|
|
{ "Primary key", "mysql.field.flags.primary_key",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_PRI_KEY_FLAG,
|
|
"Field: flag primary key", HFILL }},
|
|
|
|
{ &hf_mysql_fld_unique_key,
|
|
{ "Unique key", "mysql.field.flags.unique_key",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_UNIQUE_KEY_FLAG,
|
|
"Field: flag unique key", HFILL }},
|
|
|
|
{ &hf_mysql_fld_multiple_key,
|
|
{ "Multiple key", "mysql.field.flags.multiple_key",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_MULTIPLE_KEY_FLAG,
|
|
"Field: flag multiple key", HFILL }},
|
|
|
|
{ &hf_mysql_fld_blob,
|
|
{ "Blob", "mysql.field.flags.blob",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_BLOB_FLAG,
|
|
"Field: flag blob", HFILL }},
|
|
|
|
{ &hf_mysql_fld_unsigned,
|
|
{ "Unsigned", "mysql.field.flags.unsigned",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_UNSIGNED_FLAG,
|
|
"Field: flag unsigned", HFILL }},
|
|
|
|
{ &hf_mysql_fld_zero_fill,
|
|
{ "Zero fill", "mysql.field.flags.zero_fill",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_ZEROFILL_FLAG,
|
|
"Field: flag zero fill", HFILL }},
|
|
|
|
{ &hf_mysql_fld_binary,
|
|
{ "Binary", "mysql.field.flags.binary",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_BINARY_FLAG,
|
|
"Field: flag binary", HFILL }},
|
|
|
|
{ &hf_mysql_fld_enum,
|
|
{ "Enum", "mysql.field.flags.enum",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_ENUM_FLAG,
|
|
"Field: flag enum", HFILL }},
|
|
|
|
{ &hf_mysql_fld_auto_increment,
|
|
{ "Auto increment", "mysql.field.flags.auto_increment",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_AUTO_INCREMENT_FLAG,
|
|
"Field: flag auto increment", HFILL }},
|
|
|
|
{ &hf_mysql_fld_timestamp,
|
|
{ "Timestamp", "mysql.field.flags.timestamp",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_TIMESTAMP_FLAG,
|
|
"Field: flag timestamp", HFILL }},
|
|
|
|
{ &hf_mysql_fld_set,
|
|
{ "Set", "mysql.field.flags.set",
|
|
FT_BOOLEAN, 16, TFS(&tfs_set_notset), MYSQL_FLD_SET_FLAG,
|
|
"Field: flag set", HFILL }},
|
|
|
|
{ &hf_mysql_fld_decimals,
|
|
{ "Decimals", "mysql.field.decimals",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Field: decimals", HFILL }},
|
|
|
|
{ &hf_mysql_row_length,
|
|
{ "length", "mysql.row.length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
"Field: row packet text tength", HFILL }},
|
|
|
|
{ &hf_mysql_row_text,
|
|
{ "text", "mysql.row.text",
|
|
FT_STRING, BASE_NONE, NULL, 0x0,
|
|
"Field: row packet text", HFILL }},
|
|
};
|
|
|
|
static gint *ett[]=
|
|
{
|
|
&ett_mysql,
|
|
&ett_server_greeting,
|
|
&ett_caps,
|
|
&ett_extcaps,
|
|
&ett_stat,
|
|
&ett_request,
|
|
&ett_refresh,
|
|
&ett_field_flags
|
|
};
|
|
|
|
module_t *mysql_module;
|
|
|
|
proto_mysql= proto_register_protocol("MySQL Protocol", "MySQL", "mysql");
|
|
proto_register_field_array(proto_mysql, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
mysql_module= prefs_register_protocol(proto_mysql, NULL);
|
|
prefs_register_bool_preference(mysql_module, "desegment_buffers",
|
|
"Reassemble MySQL buffers spanning multiple TCP segments",
|
|
"Whether the MySQL dissector should reassemble MySQL buffers spanning multiple TCP segments."
|
|
" To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
|
|
&mysql_desegment);
|
|
prefs_register_bool_preference(mysql_module, "show_sql_query",
|
|
"Show SQL Query string in INFO column",
|
|
"Whether the MySQL dissector should display the SQL query string in the INFO column.",
|
|
&mysql_showquery);
|
|
|
|
register_dissector("mysql", dissect_mysql_pdu, proto_mysql);
|
|
}
|
|
|
|
|
|
/* dissector entrypoint, handles TCP-desegmentation */
|
|
static void
|
|
dissect_mysql(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
tcp_dissect_pdus(tvb, pinfo, tree, mysql_desegment, 3,
|
|
get_mysql_pdu_len, dissect_mysql_pdu);
|
|
}
|
|
|
|
|
|
/* dissector helper: length of PDU */
|
|
static guint
|
|
get_mysql_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
|
|
{
|
|
guint plen= tvb_get_letoh24(tvb, offset);
|
|
return plen + 4; /* add length field + packet number */
|
|
}
|
|
|
|
/* dissector main function: handle one PDU */
|
|
static void
|
|
dissect_mysql_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
proto_tree *mysql_tree= NULL;
|
|
proto_item *ti;
|
|
conversation_t *conversation;
|
|
int offset = 0;
|
|
guint packet_number;
|
|
gboolean is_response;
|
|
mysql_conn_data_t *conn_data;
|
|
#ifdef CTDEBUG
|
|
mysql_state_t conn_state_in, conn_state_out, frame_state;
|
|
guint64 generation;
|
|
proto_item *pi;
|
|
#endif
|
|
struct mysql_frame_data *mysql_frame_data_p;
|
|
|
|
/* get conversation, create if neccessary*/
|
|
conversation= find_or_create_conversation(pinfo);
|
|
|
|
/* get associated state information, create if neccessary */
|
|
conn_data= conversation_get_proto_data(conversation, proto_mysql);
|
|
if (!conn_data) {
|
|
conn_data= se_alloc(sizeof(mysql_conn_data_t));
|
|
conn_data->srv_caps= 0;
|
|
conn_data->clnt_caps= 0;
|
|
conn_data->clnt_caps_ext= 0;
|
|
conn_data->state= UNDEFINED;
|
|
conn_data->stmts= g_hash_table_new(g_int_hash, g_int_equal);
|
|
#ifdef CTDEBUG
|
|
conn_data->generation= 0;
|
|
#endif
|
|
conversation_add_proto_data(conversation, proto_mysql, conn_data);
|
|
}
|
|
|
|
mysql_frame_data_p = p_get_proto_data(pinfo->fd, proto_mysql);
|
|
if (!mysql_frame_data_p) {
|
|
/* We haven't seen this frame before. Store the state of the
|
|
* conversation now so if/when we dissect the frame again
|
|
* we'll start with the same state.
|
|
*/
|
|
mysql_frame_data_p = se_alloc(sizeof(struct mysql_frame_data));
|
|
mysql_frame_data_p->state = conn_data->state;
|
|
p_add_proto_data(pinfo->fd, proto_mysql, mysql_frame_data_p);
|
|
} else {
|
|
/* We have seen this frame before. Set the connection state
|
|
* to whatever state it had the first time we saw this frame
|
|
* (e.g., based on whatever frames came before it).
|
|
* The state may change as we dissect this packet.
|
|
*/
|
|
conn_data->state= mysql_frame_data_p->state;
|
|
}
|
|
|
|
if (tree) {
|
|
ti= proto_tree_add_item(tree, proto_mysql, tvb, offset, -1, FALSE);
|
|
mysql_tree= proto_item_add_subtree(ti, ett_mysql);
|
|
proto_tree_add_item(mysql_tree, hf_mysql_packet_length, tvb,
|
|
offset, 3, TRUE);
|
|
}
|
|
offset+= 3;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "MySQL");
|
|
|
|
if (pinfo->destport == pinfo->match_port) {
|
|
is_response= FALSE;
|
|
} else {
|
|
is_response= TRUE;
|
|
}
|
|
|
|
packet_number= tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(mysql_tree, hf_mysql_packet_number, tvb,
|
|
offset, 1, packet_number);
|
|
offset+= 1;
|
|
|
|
#ifdef CTDEBUG
|
|
conn_state_in= conn_data->state;
|
|
frame_state = mysql_frame_data_p->state;
|
|
generation= conn_data->generation;
|
|
if (tree) {
|
|
pi= proto_tree_add_text(mysql_tree, tvb, offset, 0, "conversation: %p", conversation);
|
|
PROTO_ITEM_SET_GENERATED(pi);
|
|
pi= proto_tree_add_text(mysql_tree, tvb, offset, 0, "generation: %" G_GINT64_MODIFIER "d", generation);
|
|
PROTO_ITEM_SET_GENERATED(pi);
|
|
pi= proto_tree_add_text(mysql_tree, tvb, offset, 0, "conn state: %s (%u)",
|
|
val_to_str(conn_state_in, state_vals, "Unknown (%u)"),
|
|
conn_state_in);
|
|
PROTO_ITEM_SET_GENERATED(pi);
|
|
pi= proto_tree_add_text(mysql_tree, tvb, offset, 0, "frame state: %s (%u)",
|
|
val_to_str(frame_state, state_vals, "Unknown (%u)"),
|
|
frame_state);
|
|
PROTO_ITEM_SET_GENERATED(pi);
|
|
}
|
|
#endif
|
|
|
|
if (is_response) {
|
|
if (packet_number == 0) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Server Greeting");
|
|
offset= mysql_dissect_greeting(tvb, pinfo, offset,
|
|
mysql_tree, conn_data);
|
|
} else {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Response");
|
|
offset= mysql_dissect_response(tvb, pinfo, offset,
|
|
mysql_tree, conn_data);
|
|
}
|
|
} else {
|
|
if (packet_number == 1) {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Login Request");
|
|
offset= mysql_dissect_login(tvb, pinfo, offset,
|
|
mysql_tree, conn_data);
|
|
} else {
|
|
col_set_str(pinfo->cinfo, COL_INFO, "Request");
|
|
offset= mysql_dissect_request(tvb, pinfo, offset,
|
|
mysql_tree, conn_data);
|
|
}
|
|
}
|
|
|
|
#ifdef CTDEBUG
|
|
conn_state_out= conn_data->state;
|
|
++(conn_data->generation);
|
|
pi= proto_tree_add_text(mysql_tree, tvb, offset, 0, "next proto state: %s (%u)",
|
|
val_to_str(conn_state_out, state_vals, "Unknown (%u)"),
|
|
conn_state_out);
|
|
PROTO_ITEM_SET_GENERATED(pi);
|
|
#endif
|
|
|
|
/* remaining payload indicates an error */
|
|
if (tree && tvb_reported_length_remaining(tvb, offset) > 0) {
|
|
proto_tree_add_string(mysql_tree, hf_mysql_payload, tvb, offset, -1,
|
|
"FIXME - dissector is incomplete");
|
|
}
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_greeting(tvbuff_t *tvb, packet_info *pinfo, int offset,
|
|
proto_tree *tree, mysql_conn_data_t *conn_data)
|
|
{
|
|
gint protocol;
|
|
gint strlen;
|
|
gint32 thread_id;
|
|
|
|
proto_item *tf;
|
|
proto_item *greeting_tree= NULL;
|
|
|
|
protocol= tvb_get_guint8(tvb, offset);
|
|
|
|
if (protocol == 0xff) {
|
|
return mysql_dissect_error_packet(tvb, pinfo, offset+1, tree);
|
|
}
|
|
|
|
conn_data->state= LOGIN;
|
|
|
|
if (tree) {
|
|
tf= proto_tree_add_text(tree, tvb, offset, -1, "Server Greeting");
|
|
greeting_tree= proto_item_add_subtree(tf, ett_server_greeting);
|
|
}
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " proto=%d", protocol) ;
|
|
}
|
|
proto_tree_add_uint(greeting_tree, hf_mysql_protocol, tvb,
|
|
offset, 1, protocol);
|
|
offset+= 1;
|
|
|
|
/* version string */
|
|
strlen= tvb_strsize(tvb,offset);
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " version=%s",
|
|
tvb_get_ptr(tvb, offset, strlen));
|
|
}
|
|
proto_tree_add_item(greeting_tree, hf_mysql_version, tvb,
|
|
offset, strlen, FALSE );
|
|
offset+= strlen;
|
|
|
|
/* 4 bytes little endian thread_id */
|
|
thread_id= tvb_get_letohl(tvb, offset);
|
|
proto_tree_add_uint(greeting_tree, hf_mysql_thread_id, tvb,
|
|
offset, 4, thread_id);
|
|
offset+= 4;
|
|
|
|
/* salt string */
|
|
strlen= tvb_strsize(tvb,offset);
|
|
proto_tree_add_item(greeting_tree, hf_mysql_salt, tvb,
|
|
offset, strlen, FALSE );
|
|
offset+=strlen;
|
|
|
|
/* rest is optional */
|
|
if (!tvb_reported_length_remaining(tvb, offset)) return offset;
|
|
|
|
/* 2 bytes CAPS */
|
|
offset= mysql_dissect_caps(tvb, offset, greeting_tree, &conn_data->srv_caps, "Server");
|
|
|
|
/* rest is optional */
|
|
if (!tvb_reported_length_remaining(tvb, offset)) return offset;
|
|
|
|
mysql_dissect_collation(tvb, offset, greeting_tree, conn_data->srv_caps,
|
|
tvb_get_guint8(tvb, offset), hf_mysql_charset);
|
|
offset++; /* for charset */
|
|
offset= mysql_dissect_server_status(tvb, offset, greeting_tree);
|
|
|
|
/* 13 bytes unused */
|
|
proto_tree_add_item(greeting_tree, hf_mysql_unused, tvb,
|
|
offset, 13, FALSE );
|
|
offset+= 13;
|
|
|
|
/* 4.1+ server: rest of salt */
|
|
if (tvb_reported_length_remaining(tvb, offset)) {
|
|
strlen= tvb_strsize(tvb,offset);
|
|
proto_tree_add_item(greeting_tree, hf_mysql_salt2, tvb,
|
|
offset, strlen, FALSE );
|
|
offset+= strlen;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_login(tvbuff_t *tvb, packet_info *pinfo, int offset,
|
|
proto_tree *tree, mysql_conn_data_t *conn_data)
|
|
{
|
|
guint16 ext_caps;
|
|
guint32 max_packet;
|
|
gint strlen;
|
|
|
|
proto_item *tf;
|
|
proto_item *login_tree= NULL;
|
|
|
|
/* after login there can be OK or DENIED */
|
|
conn_data->state= RESPONSE_OK;
|
|
|
|
if (tree) {
|
|
tf= proto_tree_add_text(tree, tvb, offset, -1, "Login Request");
|
|
login_tree= proto_item_add_subtree(tf, ett_server_greeting);
|
|
}
|
|
|
|
offset= mysql_dissect_caps(tvb, offset, login_tree, &conn_data->clnt_caps, "Client");
|
|
|
|
if (conn_data->clnt_caps & MYSQL_CAPS_CU) /* 4.1 protocol */
|
|
{
|
|
offset= mysql_dissect_ext_caps(tvb, offset, login_tree, &ext_caps, "Client");
|
|
conn_data->clnt_caps_ext= ext_caps;
|
|
|
|
max_packet= tvb_get_letohl(tvb, offset);
|
|
proto_tree_add_uint(login_tree, hf_mysql_max_packet, tvb,
|
|
offset, 4, max_packet);
|
|
offset+= 4;
|
|
|
|
mysql_dissect_collation(tvb, offset, login_tree, conn_data->clnt_caps,
|
|
tvb_get_guint8(tvb, offset), hf_mysql_charset);
|
|
offset++; /* for charset */
|
|
|
|
offset+= 23; /* filler bytes */
|
|
|
|
} else { /* pre-4.1 */
|
|
max_packet= 0xffffff - tvb_get_letoh24(tvb, offset);
|
|
proto_tree_add_uint(login_tree, hf_mysql_max_packet, tvb,
|
|
offset, 3, max_packet);
|
|
offset+= 3;
|
|
}
|
|
|
|
/* User name */
|
|
strlen= my_tvb_strsize(tvb, offset);
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " user=%s",
|
|
tvb_get_ptr(tvb,offset,strlen));
|
|
}
|
|
proto_tree_add_item(login_tree, hf_mysql_user, tvb,
|
|
offset, strlen, FALSE );
|
|
offset+= strlen;
|
|
|
|
/* rest is optional */
|
|
if (!tvb_reported_length_remaining(tvb, offset)) return offset;
|
|
|
|
/* password: asciiz or length+ascii */
|
|
if (conn_data->clnt_caps & MYSQL_CAPS_SC) {
|
|
strlen= tvb_get_guint8(tvb, offset);
|
|
offset+= 1;
|
|
} else {
|
|
strlen= my_tvb_strsize(tvb, offset);
|
|
}
|
|
if (tree && strlen > 1) {
|
|
proto_tree_add_item(login_tree, hf_mysql_passwd,
|
|
tvb, offset, strlen, FALSE);
|
|
}
|
|
offset+= strlen;
|
|
|
|
/* optional: initial schema */
|
|
if (conn_data->clnt_caps & MYSQL_CAPS_CD)
|
|
{
|
|
strlen= my_tvb_strsize(tvb,offset);
|
|
if(strlen<0){
|
|
return offset;
|
|
}
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
/* ugly hack: copy database to new buffer*/
|
|
guint8 buf[65];
|
|
if (strlen > 64)
|
|
strlen= 64;
|
|
tvb_memcpy(tvb, buf, offset, strlen);
|
|
buf[strlen]= '\0';
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " db=%s", buf);
|
|
}
|
|
proto_tree_add_item(login_tree, hf_mysql_schema, tvb,
|
|
offset, strlen, FALSE );
|
|
offset+= strlen;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_request(tvbuff_t *tvb,packet_info *pinfo, int offset,
|
|
proto_tree *tree, mysql_conn_data_t *conn_data)
|
|
{
|
|
gint opcode;
|
|
gint strlen;
|
|
proto_item *tf;
|
|
proto_item *req_tree= NULL;
|
|
guint16 option;
|
|
|
|
if (tree) {
|
|
tf= proto_tree_add_text(tree, tvb, offset, -1, "Command");
|
|
req_tree= proto_item_add_subtree(tf, ett_request);
|
|
}
|
|
|
|
opcode= tvb_get_guint8(tvb, offset);
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
|
|
val_to_str(opcode, mysql_opcode_vals, "Unknown (%u)"));
|
|
}
|
|
proto_tree_add_uint_format(req_tree, hf_mysql_opcode, tvb,
|
|
offset, 1, opcode, "Command: %s (%u)",
|
|
val_to_str(opcode, mysql_opcode_vals, "Unknown (%u)"),
|
|
opcode);
|
|
offset+= 1;
|
|
|
|
|
|
switch (opcode) {
|
|
|
|
case MYSQL_QUIT:
|
|
if (conn_data->stmts) {
|
|
g_hash_table_destroy(conn_data->stmts);
|
|
conn_data->stmts= NULL;
|
|
}
|
|
break;
|
|
|
|
case MYSQL_PROCESS_INFO:
|
|
conn_data->state= RESPONSE_TABULAR;
|
|
break;
|
|
|
|
case MYSQL_DEBUG:
|
|
case MYSQL_PING:
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_STATISTICS:
|
|
conn_data->state= RESPONSE_MESSAGE;
|
|
break;
|
|
|
|
case MYSQL_INIT_DB:
|
|
case MYSQL_CREATE_DB:
|
|
case MYSQL_DROP_DB:
|
|
strlen= my_tvb_strsize(tvb, offset);
|
|
proto_tree_add_item(req_tree, hf_mysql_schema, tvb,
|
|
offset, strlen, FALSE);
|
|
offset+= strlen;
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_QUERY:
|
|
strlen= my_tvb_strsize(tvb, offset);
|
|
proto_tree_add_item(req_tree, hf_mysql_query, tvb,
|
|
offset, strlen, FALSE);
|
|
if (mysql_showquery) {
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " { %s } ",
|
|
tvb_get_ephemeral_string(tvb, offset, strlen));
|
|
}
|
|
offset+= strlen;
|
|
conn_data->state= RESPONSE_TABULAR;
|
|
break;
|
|
|
|
case MYSQL_STMT_PREPARE:
|
|
strlen= my_tvb_strsize(tvb, offset);
|
|
proto_tree_add_item(req_tree, hf_mysql_query, tvb,
|
|
offset, strlen, FALSE);
|
|
offset+= strlen;
|
|
conn_data->state= RESPONSE_PREPARE;
|
|
break;
|
|
|
|
case MYSQL_STMT_CLOSE:
|
|
if (conn_data->stmts) {
|
|
gint stmt= tvb_get_letohl(tvb, offset);
|
|
g_hash_table_remove(conn_data->stmts, &stmt);
|
|
}
|
|
proto_tree_add_item(req_tree, hf_mysql_stmt_id,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
conn_data->state= REQUEST;
|
|
break;
|
|
|
|
case MYSQL_STMT_RESET:
|
|
proto_tree_add_item(req_tree, hf_mysql_stmt_id,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_FIELD_LIST:
|
|
strlen= my_tvb_strsize(tvb, offset);
|
|
proto_tree_add_text(req_tree, tvb, offset, strlen, "Table name: %s",
|
|
tvb_get_ephemeral_string(tvb, offset, strlen));
|
|
offset+= strlen;
|
|
conn_data->state= RESPONSE_TABULAR;
|
|
break;
|
|
|
|
case MYSQL_PROCESS_KILL:
|
|
proto_tree_add_item(req_tree, hf_mysql_thd_id,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_CHANGE_USER:
|
|
strlen= tvb_strsize(tvb, offset);
|
|
proto_tree_add_item(req_tree, hf_mysql_user, tvb,
|
|
offset, strlen, FALSE);
|
|
offset+= strlen;
|
|
|
|
strlen= tvb_strsize(tvb, offset);
|
|
proto_tree_add_item(req_tree, hf_mysql_passwd, tvb,
|
|
offset, strlen, FALSE);
|
|
offset+= strlen;
|
|
|
|
strlen= my_tvb_strsize(tvb, offset);
|
|
proto_tree_add_item(req_tree, hf_mysql_schema, tvb,
|
|
offset, strlen, FALSE);
|
|
offset+= strlen;
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_REFRESH:
|
|
{
|
|
proto_item *tff;
|
|
proto_item *rfsh_tree;
|
|
gint refresh= tvb_get_guint8(tvb, offset);
|
|
|
|
if (req_tree) {
|
|
tff= proto_tree_add_uint_format(req_tree, hf_mysql_refresh, tvb, offset, 1, refresh, "Refresh Bitmap: 0x%02X ", refresh);
|
|
rfsh_tree= proto_item_add_subtree(tff, ett_refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_grants, tvb, offset, 1, refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_log, tvb, offset, 1, refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_tables, tvb, offset, 1, refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_hosts, tvb, offset, 1, refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_status, tvb, offset, 1, refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_threads, tvb, offset, 1, refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_slave, tvb, offset, 1, refresh);
|
|
proto_tree_add_boolean(rfsh_tree, hf_mysql_rfsh_master, tvb, offset, 1, refresh);
|
|
}
|
|
}
|
|
offset+= 1;
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_SHUTDOWN:
|
|
opcode= tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint_format(req_tree, hf_mysql_opcode, tvb, offset,
|
|
1, opcode, "Shutdown-Level: %s",
|
|
val_to_str(opcode, mysql_shutdown_vals, "Unknown (%u)"));
|
|
offset+= 1;
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_SET_OPTION:
|
|
option= tvb_get_letohs(tvb, offset);
|
|
proto_tree_add_uint_format(req_tree, hf_mysql_option, tvb, offset,
|
|
2, option, "Option: %s",
|
|
val_to_str(option, mysql_option_vals, "Unknown (%u)"));
|
|
offset+= 2;
|
|
conn_data->state= RESPONSE_OK;
|
|
break;
|
|
|
|
case MYSQL_STMT_FETCH:
|
|
proto_tree_add_item(req_tree, hf_mysql_stmt_id,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
|
|
proto_tree_add_item(req_tree, hf_mysql_num_rows,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
conn_data->state= RESPONSE_TABULAR;
|
|
break;
|
|
|
|
case MYSQL_STMT_SEND_LONG_DATA:
|
|
proto_tree_add_item(req_tree, hf_mysql_stmt_id,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
|
|
proto_tree_add_item(req_tree, hf_mysql_param,
|
|
tvb, offset, 2, TRUE);
|
|
offset+= 2;
|
|
|
|
/* rest is data */
|
|
strlen= tvb_reported_length_remaining(tvb, offset);
|
|
if (tree && strlen > 0) {
|
|
proto_tree_add_item(req_tree, hf_mysql_payload,
|
|
tvb, offset, strlen, FALSE);
|
|
}
|
|
offset+= strlen;
|
|
conn_data->state= REQUEST;
|
|
break;
|
|
|
|
case MYSQL_STMT_EXECUTE:
|
|
proto_tree_add_item(req_tree, hf_mysql_stmt_id,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
|
|
proto_tree_add_item(req_tree, hf_mysql_exec_flags,
|
|
tvb, offset, 1, TRUE);
|
|
offset+= 1;
|
|
|
|
proto_tree_add_item(req_tree, hf_mysql_exec_iter,
|
|
tvb, offset, 4, TRUE);
|
|
offset+= 4;
|
|
|
|
#if 0
|
|
/* FIXME: rest needs metadata about statement */
|
|
#else
|
|
strlen= tvb_reported_length_remaining(tvb, offset);
|
|
if (tree && strlen > 0) {
|
|
proto_tree_add_string(req_tree, hf_mysql_payload, tvb, offset,
|
|
strlen, "FIXME: execute dissector incomplete");
|
|
}
|
|
offset+= strlen;
|
|
#endif
|
|
conn_data->state= RESPONSE_TABULAR;
|
|
break;
|
|
|
|
/* FIXME: implement replication packets */
|
|
case MYSQL_BINLOG_DUMP:
|
|
case MYSQL_TABLE_DUMP:
|
|
case MYSQL_CONNECT_OUT:
|
|
case MYSQL_REGISTER_SLAVE:
|
|
proto_tree_add_string(req_tree, hf_mysql_payload, tvb, offset, -1,
|
|
"FIXME: implement replication packets");
|
|
offset+= tvb_reported_length_remaining(tvb, offset);
|
|
conn_data->state= REQUEST;
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_string(req_tree, hf_mysql_payload, tvb, offset, -1,
|
|
"unknown/invalid command code");
|
|
offset+= tvb_reported_length_remaining(tvb, offset);
|
|
conn_data->state= UNDEFINED;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_response(tvbuff_t *tvb, packet_info *pinfo, int offset,
|
|
proto_tree *tree, mysql_conn_data_t *conn_data)
|
|
{
|
|
gint response_code;
|
|
gint strlen;
|
|
|
|
response_code= tvb_get_guint8(tvb, offset);
|
|
|
|
if (response_code == 0xff ) {
|
|
offset= mysql_dissect_error_packet(tvb, pinfo, offset+1, tree);
|
|
conn_data->state= REQUEST;
|
|
}
|
|
|
|
else if (response_code == 0xfe && tvb_reported_length_remaining(tvb, offset) < 9) {
|
|
|
|
proto_tree_add_uint_format(tree, hf_mysql_eof, tvb, offset, 1,
|
|
response_code, "EOF marker (%u)",
|
|
response_code);
|
|
offset+= 1;
|
|
|
|
/* pre-4.1 packet ends here */
|
|
if (tvb_reported_length_remaining(tvb, offset)) {
|
|
proto_tree_add_item(tree, hf_mysql_num_warn,
|
|
tvb, offset, 2, FALSE);
|
|
offset= mysql_dissect_server_status(tvb, offset+2, tree);
|
|
}
|
|
|
|
if (conn_data->state == FIELD_PACKET) {
|
|
conn_data->state= ROW_PACKET;
|
|
} else {
|
|
conn_data->state= REQUEST;
|
|
}
|
|
}
|
|
|
|
else if (response_code == 0) {
|
|
if (tvb_reported_length_remaining(tvb, offset+1)
|
|
> tvb_get_fle(tvb, offset+1, NULL, NULL)) {
|
|
offset= mysql_dissect_ok_packet(tvb, pinfo, offset+1,
|
|
tree, conn_data);
|
|
} else {
|
|
offset= mysql_dissect_result_header(tvb, pinfo, offset,
|
|
tree, conn_data);
|
|
}
|
|
}
|
|
|
|
else {
|
|
switch (conn_data->state) {
|
|
case RESPONSE_MESSAGE:
|
|
if ((strlen= tvb_reported_length_remaining(tvb, offset))) {
|
|
proto_tree_add_item(tree, hf_mysql_message, tvb,
|
|
offset, strlen, FALSE);
|
|
offset+= strlen;
|
|
}
|
|
conn_data->state= REQUEST;
|
|
break;
|
|
|
|
case RESPONSE_TABULAR:
|
|
offset= mysql_dissect_result_header(tvb, pinfo, offset,
|
|
tree, conn_data);
|
|
break;
|
|
|
|
case FIELD_PACKET:
|
|
offset= mysql_dissect_field_packet(tvb, offset, tree, conn_data);
|
|
break;
|
|
|
|
case ROW_PACKET:
|
|
offset= mysql_dissect_row_packet(tvb, offset, tree);
|
|
break;
|
|
|
|
case RESPONSE_PREPARE:
|
|
offset= mysql_dissect_response_prepare(tvb, offset, tree);
|
|
break;
|
|
|
|
case PARAM_PACKET:
|
|
offset= mysql_dissect_param_packet(tvb, offset, tree);
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_string(tree, hf_mysql_payload, tvb, offset, -1,
|
|
"unknown/invalid response");
|
|
offset+= tvb_reported_length_remaining(tvb, offset);
|
|
conn_data->state= UNDEFINED;
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_error_packet(tvbuff_t *tvb, packet_info *pinfo,
|
|
int offset, proto_tree *tree)
|
|
{
|
|
gint error_code;
|
|
error_code= tvb_get_letohs(tvb, offset);
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " Error %d", error_code);
|
|
}
|
|
proto_tree_add_uint(tree, hf_mysql_error_code, tvb,
|
|
offset, 2, error_code);
|
|
offset+= 2;
|
|
|
|
if (tvb_get_guint8(tvb, offset) == '#')
|
|
{
|
|
offset+= 1;
|
|
proto_tree_add_item(tree, hf_mysql_sqlstate, tvb, offset, 5, FALSE);
|
|
offset+= 5;
|
|
}
|
|
|
|
proto_tree_add_item(tree, hf_mysql_error_string, tvb, offset, -1, FALSE);
|
|
offset+= tvb_reported_length_remaining(tvb, offset);
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_ok_packet(tvbuff_t *tvb, packet_info *pinfo, int offset,
|
|
proto_tree *tree, mysql_conn_data_t *conn_data)
|
|
{
|
|
gint strlen;
|
|
guint64 affected_rows;
|
|
guint64 insert_id;
|
|
int fle;
|
|
|
|
col_append_str(pinfo->cinfo, COL_INFO, " OK" );
|
|
|
|
fle= tvb_get_fle(tvb, offset, &affected_rows, NULL);
|
|
proto_tree_add_uint64(tree, hf_mysql_affected_rows,
|
|
tvb, offset, fle, affected_rows);
|
|
offset+= fle;
|
|
|
|
fle= tvb_get_fle(tvb, offset, &insert_id, NULL);
|
|
if (tree && insert_id) {
|
|
proto_tree_add_uint64(tree, hf_mysql_insert_id,
|
|
tvb, offset, fle, insert_id);
|
|
}
|
|
offset+= fle;
|
|
|
|
if ((strlen= tvb_reported_length_remaining(tvb, offset))) {
|
|
offset= mysql_dissect_server_status(tvb, offset, tree);
|
|
|
|
/* 4.1+ protocol only: 2 bytes number of warnings */
|
|
if (conn_data->clnt_caps & conn_data->srv_caps & MYSQL_CAPS_CU) {
|
|
proto_tree_add_item(tree, hf_mysql_num_warn, tvb,
|
|
offset, 2, FALSE);
|
|
offset+= 2;
|
|
}
|
|
}
|
|
|
|
/* optional: message string */
|
|
if ((strlen= tvb_reported_length_remaining(tvb, offset))) {
|
|
proto_tree_add_item(tree, hf_mysql_message, tvb,
|
|
offset, strlen, FALSE);
|
|
offset+= strlen;
|
|
}
|
|
|
|
conn_data->state= REQUEST;
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_server_status(tvbuff_t *tvb, int offset, proto_tree *tree)
|
|
{
|
|
guint16 status;
|
|
proto_item *tf;
|
|
proto_item *stat_tree;
|
|
|
|
status= tvb_get_letohs(tvb, offset);
|
|
if (tree) {
|
|
tf= proto_tree_add_uint_format(tree, hf_mysql_status, tvb, offset, 2, status, "Server Status: 0x%04X ", status);
|
|
stat_tree= proto_item_add_subtree(tf, ett_stat);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_it, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_ac, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_mr, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_mu, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_bi, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_ni, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_cr, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_lr, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_dr, tvb, offset, 2, status);
|
|
proto_tree_add_boolean(stat_tree, hf_mysql_stat_bs, tvb, offset, 2, status);
|
|
}
|
|
offset+= 2;
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static void
|
|
mysql_dissect_collation(tvbuff_t *tvb, int offset, proto_tree *tree, guint16 caps, gint charset, int field)
|
|
{
|
|
proto_tree_add_uint_format(tree, field, tvb, offset, 1,
|
|
charset, "Charset: %s (%u)",
|
|
val_to_str(charset,
|
|
caps & MYSQL_CAPS_CU
|
|
? mysql_collation_vals
|
|
: mysql_charset_vals,
|
|
"Unknown (%u)"), charset);
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_caps(tvbuff_t *tvb, int offset, proto_tree *tree,
|
|
guint16 *caps, const char* whom)
|
|
{
|
|
*caps= tvb_get_letohs(tvb, offset);
|
|
if (tree) {
|
|
proto_item *tf= proto_tree_add_uint_format(tree, hf_mysql_caps, tvb, offset, 2, *caps,
|
|
"%s Capabilities: 0x%04X ", whom, *caps);
|
|
proto_item *cap_tree= proto_item_add_subtree(tf, ett_caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_long_password, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_found_rows, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_long_flag, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_connect_with_db, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_no_schema, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_compress, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_odbc, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_local_files, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_ignore_space, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_change_user, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_interactive, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_ssl, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_ignore_sigpipe, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_transactions, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_reserved, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(cap_tree, hf_mysql_cap_secure_connect, tvb, offset, 2, *caps);
|
|
}
|
|
|
|
offset+= 2;
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_ext_caps(tvbuff_t *tvb, int offset, proto_tree *tree,
|
|
guint16 *caps, const char* whom)
|
|
{
|
|
proto_item *extcap_tree;
|
|
*caps= tvb_get_letohs(tvb, offset);
|
|
if (tree) {
|
|
proto_item *tf= proto_tree_add_uint_format(tree, hf_mysql_extcaps, tvb, offset, 2, *caps,
|
|
"Extended %s Capabilities: 0x%04X ", whom, *caps);
|
|
extcap_tree= proto_item_add_subtree(tf, ett_extcaps);
|
|
proto_tree_add_boolean(extcap_tree, hf_mysql_cap_multi_statements, tvb, offset, 2, *caps);
|
|
proto_tree_add_boolean(extcap_tree, hf_mysql_cap_multi_results, tvb, offset, 2, *caps);
|
|
}
|
|
|
|
offset+= 2;
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_result_header(tvbuff_t *tvb, packet_info *pinfo, int offset,
|
|
proto_tree *tree, mysql_conn_data_t *conn_data)
|
|
{
|
|
gint fle;
|
|
guint64 num_fields, extra;
|
|
|
|
col_append_str(pinfo->cinfo, COL_INFO, " TABULAR" );
|
|
|
|
fle= tvb_get_fle(tvb, offset, &num_fields, NULL);
|
|
proto_tree_add_uint64(tree, hf_mysql_num_fields,
|
|
tvb, offset, fle, num_fields);
|
|
offset+= fle;
|
|
|
|
if (tvb_reported_length_remaining(tvb, offset)) {
|
|
fle= tvb_get_fle(tvb, offset, &extra, NULL);
|
|
proto_tree_add_uint64(tree, hf_mysql_extra,
|
|
tvb, offset, fle, extra);
|
|
offset+= fle;
|
|
}
|
|
|
|
if (num_fields) {
|
|
conn_data->state= FIELD_PACKET;
|
|
} else {
|
|
conn_data->state= ROW_PACKET;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
/*
|
|
* Add length encoded string to tree
|
|
*/
|
|
static int
|
|
mysql_field_add_lestring(tvbuff_t *tvb, int offset, proto_tree *tree, int field)
|
|
{
|
|
guint64 lelen;
|
|
guint8 is_null;
|
|
|
|
offset += tvb_get_fle(tvb, offset, &lelen, &is_null);
|
|
if(is_null)
|
|
proto_tree_add_string(tree, field, tvb, offset, 4, "NULL");
|
|
else
|
|
{
|
|
proto_tree_add_item(tree, field, tvb, offset,
|
|
(int)lelen, FALSE);
|
|
offset += (int)lelen;
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_field_packet(tvbuff_t *tvb, int offset, proto_tree *tree, mysql_conn_data_t *conn_data)
|
|
{
|
|
guint16 flags;
|
|
proto_item *tf;
|
|
proto_item *flags_tree;
|
|
|
|
offset = mysql_field_add_lestring(tvb, offset, tree, hf_mysql_fld_catalog);
|
|
offset = mysql_field_add_lestring(tvb, offset, tree, hf_mysql_fld_db);
|
|
offset = mysql_field_add_lestring(tvb, offset, tree, hf_mysql_fld_table);
|
|
offset = mysql_field_add_lestring(tvb, offset, tree, hf_mysql_fld_org_table);
|
|
offset = mysql_field_add_lestring(tvb, offset, tree, hf_mysql_fld_name);
|
|
offset = mysql_field_add_lestring(tvb, offset, tree, hf_mysql_fld_org_name);
|
|
offset++; /* filler */
|
|
mysql_dissect_collation(tvb, offset, tree, conn_data->srv_caps,
|
|
tvb_get_letohs(tvb, offset), hf_mysql_fld_charsetnr);
|
|
offset += 2; /* charset */
|
|
proto_tree_add_item(tree, hf_mysql_fld_length, tvb, offset, 4, TRUE);
|
|
offset += 4; /* length */
|
|
proto_tree_add_string(tree, hf_mysql_fld_type, tvb, offset, -1,
|
|
val_to_str(tvb_get_guint8(tvb, offset), type_constants, "Unknown (%u)"));
|
|
offset++; /* type */
|
|
|
|
flags = tvb_get_letohs(tvb, offset);
|
|
offset += 2; /* flags */
|
|
tf = proto_tree_add_uint_format(tree, hf_mysql_fld_flags, tvb, offset,
|
|
2, flags, "Field flags: 0x%016X", flags);
|
|
flags_tree = proto_item_add_subtree(tf, ett_field_flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_not_null, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_primary_key, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_unique_key, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_multiple_key, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_blob, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_unsigned, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_zero_fill, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_binary, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_enum, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_auto_increment, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_timestamp, tvb, offset, 2, flags);
|
|
proto_tree_add_boolean(flags_tree, hf_mysql_fld_set, tvb, offset, 2, flags);
|
|
|
|
proto_tree_add_item(tree, hf_mysql_fld_decimals, tvb, offset, 1, FALSE);
|
|
offset++; /* decimals */
|
|
|
|
offset += 2; /* filler */
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_row_packet(tvbuff_t *tvb, int offset, proto_tree *tree)
|
|
{
|
|
while (offset < tvb_reported_length_remaining(tvb, offset)) {
|
|
int length = (int) tvb_get_guint8(tvb, offset);
|
|
|
|
proto_tree_add_item(tree, hf_mysql_row_length, tvb, offset, 1, FALSE);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(tree, hf_mysql_row_text, tvb, offset, length, FALSE);
|
|
offset += length;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_response_prepare(tvbuff_t *tvb, int offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, -1, "FIXME: write mysql_dissect_response_prepare()");
|
|
return offset + tvb_reported_length_remaining(tvb, offset);
|
|
}
|
|
|
|
|
|
static int
|
|
mysql_dissect_param_packet(tvbuff_t *tvb, int offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_text(tree, tvb, offset, -1, "FIXME: write mysql_dissect_param_packet()");
|
|
return offset + tvb_reported_length_remaining(tvb, offset);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
get length of string in packet buffer
|
|
|
|
SYNOPSIS
|
|
my_tvb_strsize()
|
|
tvb packet buffer
|
|
offset current offset
|
|
|
|
DESCRIPTION
|
|
deliver length of string, delimited by either \0 or end of buffer
|
|
|
|
RETURN VALUE
|
|
length of string found, including \0 (if present)
|
|
|
|
*/
|
|
static gint
|
|
my_tvb_strsize(tvbuff_t *tvb, int offset)
|
|
{
|
|
gint len = tvb_strnlen(tvb, offset, -1);
|
|
if (len == -1) {
|
|
len = tvb_reported_length_remaining(tvb, offset);
|
|
} else {
|
|
len++; /* the trailing \0 */
|
|
}
|
|
return len;
|
|
}
|
|
|
|
|
|
/*
|
|
read "field length encoded" value from packet buffer
|
|
|
|
SYNOPSIS
|
|
tvb_get_fle()
|
|
tvb in packet buffer
|
|
offset in offset in buffer
|
|
res out where to store FLE value, may be NULL
|
|
is_null out where to store ISNULL flag, may be NULL
|
|
|
|
DESCRIPTION
|
|
read FLE from packet buffer and store its value and ISNULL flag
|
|
in caller provided variables
|
|
|
|
RETURN VALUE
|
|
length of FLE
|
|
*/
|
|
static int
|
|
tvb_get_fle(tvbuff_t *tvb, int offset, guint64 *res, guint8 *is_null)
|
|
{
|
|
guint8 prefix= tvb_get_guint8(tvb, offset);
|
|
|
|
if (is_null)
|
|
*is_null= 0;
|
|
|
|
switch (prefix) {
|
|
case 251:
|
|
if (res)
|
|
*res= 0;
|
|
if (is_null)
|
|
*is_null= 1;
|
|
break;
|
|
case 252:
|
|
if (res)
|
|
*res= tvb_get_letohs(tvb, offset+1);
|
|
return 3;
|
|
case 253:
|
|
if (res)
|
|
*res= tvb_get_letohl(tvb, offset+1);
|
|
return 5;
|
|
case 254:
|
|
if (res)
|
|
*res= tvb_get_letoh64(tvb, offset+1);
|
|
return 9;
|
|
default:
|
|
if (res)
|
|
*res= prefix;
|
|
}
|
|
|
|
return 1;
|
|
}
|