plugins/sercosiii/packet-sercosiii_1v1_hp.c

   1 /* packet-sercosiii_1v1_hp.c
   2  * Routines for SERCOS III dissection
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include <string.h>
  32
  33 #include <glib.h>
  34
  35 #include <epan/packet.h>
  36
  37 #include "packet-sercosiii.h"
  38
  39 static gint hf_siii_mdt_hotplug_address = -1;
  40 static gint hf_siii_mdt_hp_ctrl = -1;
  41 static gint hf_siii_mdt_hp_info = -1;
  42 static gint hf_siii_at_hotplug_address = -1;
  43 static gint hf_siii_at_hp_stat = -1;
  44 static gint hf_siii_at_hp_info = -1;
  45 static gint hf_siii_mdt_hotplug_control_param = -1;
  46 static gint hf_siii_mdt_hotplug_control_svc_switch = -1;
  47 static gint hf_siii_at_hotplug_status_param = -1;
  48 static gint hf_siii_at_hotplug_status_hp0_finished = -1;
  49 static gint hf_siii_at_hotplug_status_error = -1;
  50
  51 static gint ett_siii_mdt_hp = -1;
  52 static gint ett_siii_at_hp = -1;
  53 static gint ett_siii_mdt_hp_ctrl = -1;
  54 static gint ett_siii_mdt_hp_info = -1;
  55 static gint ett_siii_at_hp_stat = -1;
  56 static gint ett_siii_at_hp_info = -1;
  57
  58 static const value_string siii_mdt_hotplug_control_functioncode_text[]=
  59 {
  60   {0x00, "No data"},
  61   {0x01, "tScyc"},
  62   {0x02, "t1"},
  63   {0x03, "t6"},
  64   {0x04, "t7"},
  65   {0x05, "Communication Version"},
  66   {0x06, "Communication timeout"},
  67   {0x10, "MDT0 Length"},
  68   {0x11, "MDT1 Length"},
  69   {0x12, "MDT2 Length"},
  70   {0x13, "MDT3 Length"},
  71   {0x20, "AT0 Length"},
  72   {0x21, "AT1 Length"},
  73   {0x22, "AT2 Length"},
  74   {0x23, "AT3 Length"},
  75   {0x80, "MDT-SVC pointer"},
  76   {0x81, "MDT-RTD pointer"},
  77   {0x82, "AT-SVC pointer"},
  78   {0x83, "AT-RTD pointer"},
  79   {0, NULL}
  80 };
  81
  82 static const value_string siii_mdt_hotplug_control_svc_switch_text[]=
  83 {
  84   {0, "Transmission via HP-field"},
  85   {1, "Switch to SVC"},
  86   {0, NULL}
  87 };
  88
  89 static const value_string siii_mdt_hotplug_status_ackcode_text[]=
  90 {
  91   {0x80, "MDT-SVC pointer"},
  92   {0x81, "MDT-RTD pointer"},
  93   {0x82, "AT-SVC pointer"},
  94   {0x83, "AT-RTD pointer"},
  95   {255, "Next Sercos Slave has same address"},
  96   {0, NULL}
  97 };
  98
  99 static const value_string siii_at_hotplug_status_error_text[]=
 100 {
 101   {0, "Acknowledgement in HP-1"},
 102   {1, "Error in HP-1"},
 103   {0, NULL}
 104 };
 105
 106 void dissect_siii_mdt_hp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
 107 {
 108   proto_tree* subtree;
 109   proto_tree* subtree2;
 110   proto_item* ti;
 111
 112   ti = proto_tree_add_text(tree, tvb, 0, 8, "Hot-Plug");
 113   subtree = proto_item_add_subtree(ti, ett_siii_mdt_hp);
 114
 115   proto_tree_add_item(subtree, hf_siii_mdt_hotplug_address, tvb, 2, 2, TRUE);
 116
 117   ti = proto_tree_add_item(subtree, hf_siii_mdt_hp_ctrl, tvb, 2, 2, TRUE);
 118   subtree2 = proto_item_add_subtree(ti, ett_siii_mdt_hp_ctrl);
 119
 120   proto_tree_add_item(subtree2, hf_siii_mdt_hotplug_control_svc_switch, tvb, 2, 2, TRUE);
 121   proto_tree_add_item(subtree2, hf_siii_mdt_hotplug_control_param, tvb, 2, 2, TRUE);
 122
 123   proto_tree_add_item(subtree, hf_siii_mdt_hp_info, tvb, 4, 4, TRUE);
 124 }
 125
 126 void dissect_siii_at_hp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
 127 {
 128   proto_tree* subtree;
 129   proto_tree* subtree2;
 130   proto_item* ti;
 131
 132   ti = proto_tree_add_text(tree, tvb, 0, 8, "Hot-Plug");
 133   subtree = proto_item_add_subtree(ti, ett_siii_at_hp);
 134
 135   proto_tree_add_item(subtree, hf_siii_at_hotplug_address, tvb, 2, 2, TRUE);
 136
 137   ti = proto_tree_add_item(subtree, hf_siii_at_hp_stat, tvb, 2, 2, TRUE);
 138   subtree2 = proto_item_add_subtree(ti, ett_siii_at_hp_stat);
 139
 140   proto_tree_add_item(subtree2, hf_siii_at_hotplug_status_error, tvb, 2, 2, TRUE);
 141   proto_tree_add_item(subtree2, hf_siii_at_hotplug_status_hp0_finished, tvb, 2, 2, TRUE);
 142   proto_tree_add_item(subtree2, hf_siii_at_hotplug_status_param, tvb, 2, 2, TRUE);
 143
 144   proto_tree_add_item(subtree, hf_siii_at_hp_info, tvb, 4, 4, TRUE);
 145 }
 146
 147 void dissect_siii_hp_init(gint proto_siii)
 148 {
 149   /* Setup list of header fields  See Section 1.6.1 for details*/
 150   static hf_register_info hf_siii_header[] = {
 151     { &hf_siii_mdt_hotplug_address,
 152       {"Sercos address", "siii.mdt.hp.sercosaddress",
 153         FT_UINT16, BASE_HEX, NULL, 0,
 154         NULL, HFILL }
 155     },
 156     { &hf_siii_mdt_hp_ctrl,
 157       {"HP control", "siii.mdt.hp.ctrl",
 158         FT_UINT16, BASE_HEX, NULL, 0,
 159         NULL, HFILL }
 160     },
 161     { &hf_siii_mdt_hp_info,
 162       {"HP info", "siii.mdt.hp.info",
 163         FT_BYTES, BASE_HEX, NULL, 0,
 164         NULL, HFILL }
 165     },
 166     { &hf_siii_at_hotplug_address,
 167       {"Sercos address", "siii.at.hp.sercosaddress",
 168         FT_UINT16, BASE_HEX, NULL, 0,
 169         NULL, HFILL }
 170     },
 171     { &hf_siii_at_hp_stat,
 172       {"HP status", "siii.mdt.hp.stat",
 173         FT_UINT16, BASE_HEX, NULL, 0,
 174         NULL, HFILL }
 175     },
 176     { &hf_siii_at_hp_info,
 177       {"HP info", "siii.at.hp.info",
 178         FT_BYTES, BASE_HEX, NULL, 0,
 179         NULL, HFILL }
 180     },
 181     { &hf_siii_mdt_hotplug_control_param,
 182       {"Parameter", "siii.mdt.hp.parameter",
 183         FT_UINT16, BASE_DEC, VALS(siii_mdt_hotplug_control_functioncode_text), 0xFF,
 184         NULL, HFILL }
 185     },
 186     { &hf_siii_mdt_hotplug_control_svc_switch,
 187       {"Switch to SVC", "siii.mdt.hp.switch",
 188         FT_UINT16, BASE_DEC, VALS(siii_mdt_hotplug_control_svc_switch_text), 0x100,
 189         NULL, HFILL }
 190     },
 191
 192     { &hf_siii_at_hotplug_status_param,
 193       {"Parameter Received", "siii.at.hp.parameter",
 194         FT_UINT16, BASE_DEC, VALS(siii_mdt_hotplug_status_ackcode_text), 0xFF,
 195         NULL, HFILL }
 196     },
 197     { &hf_siii_at_hotplug_status_hp0_finished,
 198       {"HP/SVC", "siii.at.hp.hp0_finished",
 199         FT_UINT16, BASE_DEC, NULL, 0x100,
 200         NULL, HFILL }
 201     },
 202     { &hf_siii_at_hotplug_status_error,
 203       {"Error", "siii.at.hp.error",
 204         FT_UINT16, BASE_DEC, VALS(siii_at_hotplug_status_error_text), 0x200,
 205         NULL, HFILL }
 206     }
 207   };
 208
 209   /* Setup protocol subtree array */
 210   static gint *ett[] = {
 211     &ett_siii_mdt_hp,
 212     &ett_siii_at_hp,
 213     &ett_siii_mdt_hp_ctrl,
 214     &ett_siii_mdt_hp_info,
 215     &ett_siii_at_hp_stat,
 216     &ett_siii_at_hp_info
 217   };
 218
 219   /* Required function calls to register the header fields and subtrees used */
 220   proto_register_field_array(proto_siii, hf_siii_header, array_length(hf_siii_header));
 221   proto_register_subtree_array(ett, array_length(ett));
 222 }