epan/dissectors/packet-componentstatus.c

   1 /* packet-componentstatus.c
   2  * Routines for the Component Status Protocol of the
   3  * RSPLIB RSerPool implementation
   4  * https://www.uni-due.de/~be0001/rserpool/
   5  *
   6  * Copyright 2006-2021 by Thomas Dreibholz <dreibh [AT] iem.uni-due.de>
   7  *
   8  * Wireshark - Network traffic analyzer
   9  * By Gerald Combs <gerald@wireshark.org>
  10  * Copyright 1998 Gerald Combs
  11  *
  12  * Copied from README.developer
  13  *
  14  * SPDX-License-Identifier: GPL-2.0-or-later
  15  */
  16
  17 #include "config.h"
  18
  19 #include <epan/packet.h>
  20 #include <epan/ipproto.h>
  21 #include <epan/sctpppids.h>
  22 #include <epan/stat_tap_ui.h>
  23 #include <epan/tfs.h>
  24 #include <wsutil/array.h>
  25
  26
  27 void proto_register_componentstatusprotocol(void);
  28 void proto_reg_handoff_componentstatusprotocol(void);
  29
  30 static dissector_handle_t componentstatusprotocol_handle;
  31
  32 /* Initialize the protocol and registered fields */
  33 static int proto_componentstatusprotocol;
  34 static int tap_componentstatusprotocol   = -1;
  35
  36 /* Initialize the subtree pointers */
  37 static int ett_componentstatusprotocol;
  38 static int ett_message_flags;
  39 static int ett_message_sender_id;
  40 static int ett_cspreport_association_receiver_id;
  41 static int ett_association;
  42
  43
  44 #define COMPONENTSTATUSPROTOCOL_PORT    2960   /* Not IANA registered */
  45 #define COMPONENTSTATUSPROTOCOL_VERSION 0x0200
  46
  47 static int hf_message_type;
  48 static int hf_message_flags;
  49 static int hf_message_flags_final_bit;
  50 static int hf_message_length;
  51 static int hf_message_version;
  52 static int hf_message_sender_id;
  53 static int hf_message_sender_id_group;
  54 static int hf_message_sender_id_object;
  55 static int hf_message_sender_timestamp;
  56
  57 static uint64_t componentstatusprotocol_total_msgs;
  58 static uint64_t componentstatusprotocol_total_bytes;
  59
  60
  61 #define COMPONENTSTATUS_REPORT 0x01
  62
  63 static const value_string message_type_values[] = {
  64   { COMPONENTSTATUS_REPORT, "ComponentStatus Report" },
  65   { 0, NULL }
  66 };
  67
  68
  69 static int hf_cspreport_report_interval;
  70 static int hf_cspreport_location;
  71 static int hf_cspreport_status;
  72 static int hf_cspreport_workload;
  73 static int hf_cspreport_associations;
  74
  75 #define CSPF_FINAL (1 << 0)
  76 static const true_false_string message_flags_final_bit = {
  77   "Final message",
  78   "Not final message"
  79 };
  80
  81 #define CID_GROUP_UNKNOWN     0x0000
  82 #define CID_GROUP_REGISTRAR   0x0001
  83 #define CID_GROUP_POOLELEMENT 0x0002
  84 #define CID_GROUP_POOLUSER    0x0003
  85 #define CID_GROUP(id)  (((uint64_t) id >> 56) & (0xffffULL)
  86 #define CID_OBJECT(id) (((uint64_t) id & 0xffffffffffffffULL)
  87 static const value_string group_values[] = {
  88   { CID_GROUP_UNKNOWN,     "Unknown" },
  89   { CID_GROUP_REGISTRAR,   "Registrar" },
  90   { CID_GROUP_POOLELEMENT, "Pool Element" },
  91   { CID_GROUP_POOLUSER,    "Pool User" },
  92   { 0, NULL }
  93 };
  94
  95 #define CSR_GET_WORKLOAD(w) ((w == 0xffff) ? -1.0 : (float)(w / (float)0xfffe))
  96
  97 static int hf_cspreport_association_receiver_id;
  98 static int hf_cspreport_association_receiver_id_group;
  99 static int hf_cspreport_association_receiver_id_object;
 100 static int hf_cspreport_association_duration;
 101 static int hf_cspreport_association_flags;
 102 static int hf_cspreport_association_protocolid;
 103 static int hf_cspreport_association_ppid;
 104
 105
 106 /* Setup list of header fields */
 107 static hf_register_info hf[] = {
 108   { &hf_message_type,                             { "Type",            "componentstatusprotocol.message_type",                         FT_UINT8,  BASE_DEC, VALS(message_type_values), 0x0, NULL, HFILL } },
 109   { &hf_message_flags,                            { "Flags",           "componentstatusprotocol.message_flags",                        FT_UINT8,  BASE_DEC, NULL,                      0x0, NULL, HFILL } },
 110   { &hf_message_flags_final_bit,                  { "F-Bit",           "componentstatusprotocol.message_final_bit",                    FT_BOOLEAN, 8, TFS(&message_flags_final_bit),   CSPF_FINAL, NULL, HFILL } },
 111   { &hf_message_length,                           { "Length",          "componentstatusprotocol.message_length",                       FT_UINT16, BASE_DEC, NULL,                      0x0, NULL, HFILL } },
 112   { &hf_message_version,                          { "Version",         "componentstatusprotocol.message_version",                      FT_UINT32, BASE_HEX, NULL,                      0x0, NULL, HFILL } },
 113   { &hf_message_sender_id,                        { "SenderID",        "componentstatusprotocol.message_sender_id",                    FT_UINT64, BASE_HEX, NULL,                      0x0, NULL, HFILL } },
 114   { &hf_message_sender_id_group,                  { "Group",           "componentstatusprotocol.message_sender_id.group",              FT_UINT16, BASE_HEX, VALS(group_values),        0x0, NULL, HFILL } },
 115   { &hf_message_sender_id_object,                 { "Object",          "componentstatusprotocol.message_sender_id.object",             FT_UINT64, BASE_HEX, NULL,                      0x0, NULL, HFILL } },
 116   { &hf_message_sender_timestamp,                 { "SenderTimeStamp", "componentstatusprotocol.message_sendertimestamp",              FT_RELATIVE_TIME, BASE_NONE, NULL,              0x0, NULL, HFILL } },
 117
 118   { &hf_cspreport_report_interval,                { "ReportInterval",  "componentstatusprotocol.componentstatusreport_reportinterval", FT_RELATIVE_TIME, BASE_NONE, NULL,              0x0, NULL, HFILL } },
 119   { &hf_cspreport_location,                       { "Location",        "componentstatusprotocol.componentstatusreport_location",       FT_STRING, BASE_NONE, NULL,                     0x0, NULL, HFILL } },
 120   { &hf_cspreport_status,                         { "Status",          "componentstatusprotocol.componentstatusreport_status",         FT_STRING, BASE_NONE, NULL,                     0x0, NULL, HFILL } },
 121   { &hf_cspreport_workload,                       { "Workload",        "componentstatusprotocol.componentstatusreport_workload",       FT_FLOAT,  BASE_NONE, NULL,                     0x0, NULL, HFILL } },
 122   { &hf_cspreport_associations,                   { "Associations",    "componentstatusprotocol.componentstatusreport_associations",   FT_UINT16, BASE_DEC, NULL,                      0x0, NULL, HFILL } },
 123
 124   { &hf_cspreport_association_receiver_id,        { "ReceiverID", "componentstatusprotocol.componentassociation_receiver_id",          FT_UINT64, BASE_HEX, NULL,                      0x0, NULL, HFILL } },
 125   { &hf_cspreport_association_receiver_id_group,  { "Group",      "componentstatusprotocol.componentassociation_receiver_id.group",    FT_UINT16, BASE_HEX, VALS(group_values),        0x0, NULL, HFILL } },
 126   { &hf_cspreport_association_receiver_id_object, { "Object",     "componentstatusprotocol.componentassociation_receiver_id.object",   FT_UINT64, BASE_HEX, NULL,                      0x0, NULL, HFILL } },
 127   { &hf_cspreport_association_duration,           { "Duration",   "componentstatusprotocol.componentassociation_duration",             FT_RELATIVE_TIME, BASE_NONE, NULL,              0x0, NULL, HFILL } },
 128   { &hf_cspreport_association_flags,              { "Flags",      "componentstatusprotocol.componentassociation_flags",                FT_UINT16, BASE_DEC, NULL,                      0x0, NULL, HFILL } },
 129   { &hf_cspreport_association_protocolid,         { "ProtocolID", "componentstatusprotocol.componentassociation_protocolid",           FT_UINT16, BASE_DEC|BASE_EXT_STRING, &ipproto_val_ext,  0x0, NULL, HFILL } },
 130   { &hf_cspreport_association_ppid,               { "PPID",       "componentstatusprotocol.componentassociation_ppid",                 FT_UINT32, BASE_DEC|BASE_EXT_STRING, &sctpppid_val_ext, 0x0, NULL, HFILL } },
 131 };
 132
 133
 134 typedef struct _tap_componentstatusprotocol_rec_t {
 135   uint8_t     type;
 136   uint16_t    size;
 137   const char* type_string;
 138 } tap_componentstatusprotocol_rec_t;
 139
 140
 141 static void
 142 dissect_componentstatusprotocol_cspreport_association(tvbuff_t *message_tvb, proto_tree *message_tree)
 143 {
 144   proto_item* receiver_id_item;
 145   proto_tree* receiver_id_tree;
 146   uint64_t    timestamp;
 147   nstime_t    t;
 148
 149   receiver_id_item = proto_tree_add_item(message_tree, hf_cspreport_association_receiver_id, message_tvb, 0, 8, ENC_BIG_ENDIAN);
 150   receiver_id_tree = proto_item_add_subtree(receiver_id_item, ett_cspreport_association_receiver_id);
 151   proto_tree_add_item(receiver_id_tree, hf_cspreport_association_receiver_id_group,  message_tvb, 0, 1, ENC_BIG_ENDIAN);
 152   proto_tree_add_item(receiver_id_tree, hf_cspreport_association_receiver_id_object, message_tvb, 1, 7, ENC_BIG_ENDIAN);
 153
 154   timestamp = tvb_get_ntoh64(message_tvb, 8);
 155   t.secs  = (time_t)(timestamp / 1000000);
 156   t.nsecs = (int)((timestamp - 1000000 * t.secs) * 1000);
 157   if(timestamp == 0xffffffffffffffffULL) {
 158     proto_tree_add_time_format(message_tree, hf_cspreport_association_duration, message_tvb, 8, 8, &t, "Duration: unknown");
 159   }
 160   else {
 161     proto_tree_add_time(message_tree, hf_cspreport_association_duration, message_tvb, 8, 8, &t);
 162   }
 163
 164   proto_tree_add_item(message_tree, hf_cspreport_association_flags,      message_tvb, 16, 2, ENC_BIG_ENDIAN);
 165   proto_tree_add_item(message_tree, hf_cspreport_association_protocolid, message_tvb, 18, 2, ENC_BIG_ENDIAN);
 166   proto_tree_add_item(message_tree, hf_cspreport_association_ppid,       message_tvb, 20, 4, ENC_BIG_ENDIAN);
 167 }
 168
 169
 170 static void
 171 dissect_componentstatusprotocol_cspreport_message(tvbuff_t *message_tvb, proto_tree *message_tree)
 172 {
 173   tvbuff_t   *association_tvb;
 174   proto_tree *association_tree;
 175   int         association;
 176   int         offset;
 177   float       workload;
 178   uint64_t    interval;
 179   nstime_t    t;
 180
 181   interval = tvb_get_ntohl(message_tvb, 24);
 182   t.secs  = (time_t)(interval / 1000000);
 183   t.nsecs = (int)((interval - 1000000 * t.secs) * 1000);
 184   proto_tree_add_time(message_tree, hf_cspreport_report_interval, message_tvb,  24,   4, &t);
 185   proto_tree_add_item(message_tree, hf_cspreport_location,        message_tvb,  28, 128, ENC_UTF_8);
 186   proto_tree_add_item(message_tree, hf_cspreport_status,          message_tvb, 156, 128, ENC_UTF_8);
 187
 188   workload = (float)(100.0 * CSR_GET_WORKLOAD(tvb_get_ntohs(message_tvb, 284)));
 189   if(workload < 0.0) {   /* Special value 0xffff -> -1.0 means "no load provided"! */
 190      proto_tree_add_float_format(message_tree, hf_cspreport_workload, message_tvb, 284, 2,
 191                                 workload, "Workload: N/A");
 192   }
 193   else {
 194      proto_tree_add_float_format_value(message_tree, hf_cspreport_workload, message_tvb, 284, 2,
 195                                        workload, "%1.2f%%", workload);
 196   }
 197   proto_tree_add_item(message_tree, hf_cspreport_associations, message_tvb, 286, 2, ENC_BIG_ENDIAN);
 198
 199   association = 1;
 200   offset      = 288;
 201   while(tvb_reported_length_remaining(message_tvb, offset) >= 24) {
 202      association_tree = proto_tree_add_subtree_format(message_tree, message_tvb, offset, 24,
 203          ett_association, NULL, "Association #%d", association++);
 204      association_tvb  = tvb_new_subset_length_caplen(message_tvb, offset,
 205                            MIN(24, tvb_reported_length_remaining(message_tvb, offset)),
 206                            24);
 207
 208      dissect_componentstatusprotocol_cspreport_association(association_tvb, association_tree);
 209      offset += 24;
 210   }
 211 }
 212
 213
 214 static void
 215 dissect_componentstatusprotocol_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *componentstatusprotocol_tree)
 216 {
 217   proto_item* flags_item;
 218   proto_tree* flags_tree;
 219   proto_item* sender_id_item;
 220   proto_tree* sender_id_tree;
 221   uint64_t    timestamp;
 222   nstime_t    t;
 223
 224   tap_componentstatusprotocol_rec_t* tap_rec = wmem_new0(pinfo->pool, tap_componentstatusprotocol_rec_t);
 225   tap_rec->type        = tvb_get_uint8(message_tvb, 0);
 226   tap_rec->size        = tvb_get_ntohs(message_tvb, 2);
 227   tap_rec->type_string = val_to_str_const(tap_rec->type, message_type_values, "Unknown ComponentStatusProtocol message type");
 228   tap_queue_packet(tap_componentstatusprotocol, pinfo, tap_rec);
 229
 230   proto_tree_add_item(componentstatusprotocol_tree, hf_message_type, message_tvb, 0, 1, ENC_BIG_ENDIAN);
 231   flags_item = proto_tree_add_item(componentstatusprotocol_tree, hf_message_flags, message_tvb, 1, 1, ENC_BIG_ENDIAN);
 232   flags_tree = proto_item_add_subtree(flags_item, ett_message_flags);
 233   proto_tree_add_item(flags_tree, hf_message_flags_final_bit, message_tvb, 1, 1, ENC_BIG_ENDIAN);
 234   proto_tree_add_item(componentstatusprotocol_tree, hf_message_length, message_tvb, 2, 2, ENC_BIG_ENDIAN);
 235
 236   proto_tree_add_item(componentstatusprotocol_tree, hf_message_version, message_tvb, 4, 4, ENC_BIG_ENDIAN);
 237   sender_id_item = proto_tree_add_item(componentstatusprotocol_tree, hf_message_sender_id, message_tvb, 8, 8, ENC_BIG_ENDIAN);
 238   sender_id_tree = proto_item_add_subtree(sender_id_item, ett_message_sender_id);
 239   proto_tree_add_item(sender_id_tree, hf_message_sender_id_group,  message_tvb, 8, 1, ENC_BIG_ENDIAN);
 240   proto_tree_add_item(sender_id_tree, hf_message_sender_id_object, message_tvb, 9, 7, ENC_BIG_ENDIAN);
 241
 242   timestamp = tvb_get_ntoh64(message_tvb, 16);
 243   t.secs  = (time_t)(timestamp / 1000000);
 244   t.nsecs = (int)((timestamp - 1000000 * t.secs) * 1000);
 245   proto_tree_add_time(componentstatusprotocol_tree, hf_message_sender_timestamp, message_tvb, 16, 8, &t);
 246
 247   switch (tap_rec->type) {
 248     case COMPONENTSTATUS_REPORT:
 249       dissect_componentstatusprotocol_cspreport_message(message_tvb, componentstatusprotocol_tree);
 250      break;
 251   }
 252 }
 253
 254
 255 static int
 256 dissect_componentstatusprotocol(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
 257 {
 258   proto_item *componentstatusprotocol_item;
 259   proto_tree *componentstatusprotocol_tree;
 260   int8_t type;
 261   int32_t version;
 262
 263   if (tvb_reported_length(message_tvb) < 4 + 4)
 264     return 0;
 265
 266   /* Check, if this packet really contains a ComponentStatusProtocol message */
 267   type = tvb_get_uint8(message_tvb, 0);
 268   if (type != COMPONENTSTATUS_REPORT) {
 269     return 0;
 270   }
 271   version = tvb_get_ntohl(message_tvb, 4);
 272   if (version != COMPONENTSTATUSPROTOCOL_VERSION) {
 273     return 0;
 274   }
 275
 276   col_set_str(pinfo->cinfo, COL_PROTOCOL, "ComponentStatusProtocol");
 277
 278   /* create the componentstatusprotocol protocol tree */
 279   componentstatusprotocol_item = proto_tree_add_item(tree, proto_componentstatusprotocol, message_tvb, 0, -1, ENC_NA);
 280   componentstatusprotocol_tree = proto_item_add_subtree(componentstatusprotocol_item, ett_componentstatusprotocol);
 281
 282   /* dissect the message */
 283   dissect_componentstatusprotocol_message(message_tvb, pinfo, componentstatusprotocol_tree);
 284   return tvb_reported_length(message_tvb);
 285 }
 286
 287
 288 /* TAP STAT INFO */
 289 typedef enum
 290 {
 291   MESSAGE_TYPE_COLUMN = 0,
 292   MESSAGES_COLUMN,
 293   MESSAGES_SHARE_COLUMN,
 294   BYTES_COLUMN,
 295   BYTES_SHARE_COLUMN,
 296   FIRST_SEEN_COLUMN,
 297   LAST_SEEN_COLUMN,
 298   INTERVAL_COLUMN,
 299   MESSAGE_RATE_COLUMN,
 300   BYTE_RATE_COLUMN
 301 } componentstatusprotocol_stat_columns;
 302
 303 static stat_tap_table_item componentstatusprotocol_stat_fields[] = {
 304   { TABLE_ITEM_STRING, TAP_ALIGN_LEFT,  "ComponentStatusProtocol Message Type", "%-25s" },
 305   { TABLE_ITEM_UINT,   TAP_ALIGN_RIGHT, "Messages ",            "%u"       },
 306   { TABLE_ITEM_UINT,   TAP_ALIGN_RIGHT, "Messages Share (%)"  , "%1.3f %%" },
 307   { TABLE_ITEM_UINT,   TAP_ALIGN_RIGHT, "Bytes (B)",            "%u"       },
 308   { TABLE_ITEM_UINT,   TAP_ALIGN_RIGHT, "Bytes Share (%) ",     "%1.3f %%" },
 309   { TABLE_ITEM_FLOAT,  TAP_ALIGN_LEFT,  "First Seen (s)",       "%1.6f"    },
 310   { TABLE_ITEM_FLOAT,  TAP_ALIGN_LEFT,  "Last Seen (s)",        "%1.6f"    },
 311   { TABLE_ITEM_FLOAT,  TAP_ALIGN_LEFT,  "Interval (s)",         "%1.6f"    },
 312   { TABLE_ITEM_FLOAT,  TAP_ALIGN_LEFT,  "Message Rate (Msg/s)", "%1.2f"    },
 313   { TABLE_ITEM_FLOAT,  TAP_ALIGN_LEFT,  "Byte Rate (B/s)",      "%1.2f"    }
 314 };
 315
 316 static void componentstatusprotocol_stat_init(stat_tap_table_ui* new_stat)
 317 {
 318   const char *table_name = "ComponentStatusProtocol Statistics";
 319   int num_fields = array_length(componentstatusprotocol_stat_fields);
 320   stat_tap_table *table;
 321   int i = 0;
 322   stat_tap_table_item_type items[array_length(componentstatusprotocol_stat_fields)];
 323
 324   table = stat_tap_find_table(new_stat, table_name);
 325   if (table) {
 326     if (new_stat->stat_tap_reset_table_cb) {
 327       new_stat->stat_tap_reset_table_cb(table);
 328     }
 329     return;
 330   }
 331
 332   table = stat_tap_init_table(table_name, num_fields, 0, NULL);
 333   stat_tap_add_table(new_stat, table);
 334
 335   memset(items, 0x0, sizeof(items));
 336   /* Add a row for each value type */
 337   while (message_type_values[i].strptr) {
 338     items[MESSAGE_TYPE_COLUMN].type                = TABLE_ITEM_STRING;
 339     items[MESSAGE_TYPE_COLUMN].value.string_value  = message_type_values[i].strptr;
 340     items[MESSAGES_COLUMN].type                    = TABLE_ITEM_UINT;
 341     items[MESSAGES_COLUMN].value.uint_value        = 0;
 342     items[MESSAGES_SHARE_COLUMN].type              = TABLE_ITEM_NONE;
 343     items[MESSAGES_SHARE_COLUMN].value.float_value = -1.0;
 344     items[BYTES_COLUMN].type                       = TABLE_ITEM_UINT;
 345     items[BYTES_COLUMN].value.uint_value           = 0;
 346     items[BYTES_SHARE_COLUMN].type                 = TABLE_ITEM_NONE;
 347     items[BYTES_SHARE_COLUMN].value.float_value    = -1.0;
 348     items[FIRST_SEEN_COLUMN].type                  = TABLE_ITEM_NONE;
 349     items[FIRST_SEEN_COLUMN].value.float_value     = DBL_MAX;
 350     items[LAST_SEEN_COLUMN].type                   = TABLE_ITEM_NONE;
 351     items[LAST_SEEN_COLUMN].value.float_value      = DBL_MIN;
 352     items[INTERVAL_COLUMN].type                    = TABLE_ITEM_NONE;
 353     items[INTERVAL_COLUMN].value.float_value       = -1.0;
 354     items[MESSAGE_RATE_COLUMN].type                = TABLE_ITEM_NONE;
 355     items[MESSAGE_RATE_COLUMN].value.float_value   = -1.0;
 356     items[BYTE_RATE_COLUMN].type                   = TABLE_ITEM_NONE;
 357     items[BYTE_RATE_COLUMN].value.float_value      = -1.0;
 358     stat_tap_init_table_row(table, i, num_fields, items);
 359     i++;
 360   }
 361 }
 362
 363 static tap_packet_status
 364 componentstatusprotocol_stat_packet(void* tapdata, packet_info* pinfo _U_, epan_dissect_t* edt _U_, const void* data, tap_flags_t flags _U_)
 365 {
 366   stat_data_t*              stat_data = (stat_data_t*)tapdata;
 367   const tap_componentstatusprotocol_rec_t*      tap_rec   = (const tap_componentstatusprotocol_rec_t*)data;
 368   stat_tap_table*           table;
 369   stat_tap_table_item_type* msg_data;
 370   int                       idx;
 371   uint64_t                  messages;
 372   uint64_t                  bytes;
 373   int                       i         = 0;
 374   double                    firstSeen = -1.0;
 375   double                    lastSeen  = -1.0;
 376
 377   idx = str_to_val_idx(tap_rec->type_string, message_type_values);
 378   if (idx < 0)
 379     return TAP_PACKET_DONT_REDRAW;
 380
 381   table = g_array_index(stat_data->stat_tap_data->tables, stat_tap_table*, 0);
 382
 383   /* Update packets counter */
 384   componentstatusprotocol_total_msgs++;
 385   msg_data = stat_tap_get_field_data(table, idx, MESSAGES_COLUMN);
 386   msg_data->value.uint_value++;
 387   messages = msg_data->value.uint_value;
 388   stat_tap_set_field_data(table, idx, MESSAGES_COLUMN, msg_data);
 389
 390   /* Update bytes counter */
 391   componentstatusprotocol_total_bytes += tap_rec->size;
 392   msg_data = stat_tap_get_field_data(table, idx, BYTES_COLUMN);
 393   msg_data->value.uint_value += tap_rec->size;
 394   bytes = msg_data->value.uint_value;
 395   stat_tap_set_field_data(table, idx, BYTES_COLUMN, msg_data);
 396
 397   /* Update messages and bytes share */
 398   while (message_type_values[i].strptr) {
 399     msg_data = stat_tap_get_field_data(table, i, MESSAGES_COLUMN);
 400     const unsigned m = msg_data->value.uint_value;
 401     msg_data = stat_tap_get_field_data(table, i, BYTES_COLUMN);
 402     const unsigned b = msg_data->value.uint_value;
 403
 404     msg_data = stat_tap_get_field_data(table, i, MESSAGES_SHARE_COLUMN);
 405     msg_data->type = TABLE_ITEM_FLOAT;
 406     msg_data->value.float_value = 100.0 * m / (double)componentstatusprotocol_total_msgs;
 407     stat_tap_set_field_data(table, i, MESSAGES_SHARE_COLUMN, msg_data);
 408
 409     msg_data = stat_tap_get_field_data(table, i, BYTES_SHARE_COLUMN);
 410     msg_data->type = TABLE_ITEM_FLOAT;
 411     msg_data->value.float_value = 100.0 * b / (double)componentstatusprotocol_total_bytes;
 412     stat_tap_set_field_data(table, i, BYTES_SHARE_COLUMN, msg_data);
 413     i++;
 414   }
 415
 416   /* Update first seen time */
 417   if (pinfo->presence_flags & PINFO_HAS_TS) {
 418     msg_data = stat_tap_get_field_data(table, idx, FIRST_SEEN_COLUMN);
 419     msg_data->type = TABLE_ITEM_FLOAT;
 420     msg_data->value.float_value = MIN(msg_data->value.float_value, nstime_to_sec(&pinfo->rel_ts));
 421     firstSeen = msg_data->value.float_value;
 422     stat_tap_set_field_data(table, idx, FIRST_SEEN_COLUMN, msg_data);
 423   }
 424
 425   /* Update last seen time */
 426   if (pinfo->presence_flags & PINFO_HAS_TS) {
 427     msg_data = stat_tap_get_field_data(table, idx, LAST_SEEN_COLUMN);
 428     msg_data->type = TABLE_ITEM_FLOAT;
 429     msg_data->value.float_value = MAX(msg_data->value.float_value, nstime_to_sec(&pinfo->rel_ts));
 430     lastSeen = msg_data->value.float_value;
 431     stat_tap_set_field_data(table, idx, LAST_SEEN_COLUMN, msg_data);
 432   }
 433
 434   if ((lastSeen - firstSeen) > 0.0) {
 435     /* Update interval */
 436     msg_data = stat_tap_get_field_data(table, idx, INTERVAL_COLUMN);
 437     msg_data->type = TABLE_ITEM_FLOAT;
 438     msg_data->value.float_value = lastSeen - firstSeen;
 439     stat_tap_set_field_data(table, idx, INTERVAL_COLUMN, msg_data);
 440
 441     /* Update message rate */
 442     msg_data = stat_tap_get_field_data(table, idx, MESSAGE_RATE_COLUMN);
 443     msg_data->type = TABLE_ITEM_FLOAT;
 444     msg_data->value.float_value = messages / (lastSeen - firstSeen);
 445     stat_tap_set_field_data(table, idx, MESSAGE_RATE_COLUMN, msg_data);
 446
 447     /* Update byte rate */
 448     msg_data = stat_tap_get_field_data(table, idx, BYTE_RATE_COLUMN);
 449     msg_data->type = TABLE_ITEM_FLOAT;
 450     msg_data->value.float_value = bytes / (lastSeen - firstSeen);
 451     stat_tap_set_field_data(table, idx, BYTE_RATE_COLUMN, msg_data);
 452   }
 453
 454   return TAP_PACKET_REDRAW;
 455 }
 456
 457 static void
 458 componentstatusprotocol_stat_reset(stat_tap_table* table)
 459 {
 460   unsigned element;
 461   stat_tap_table_item_type* item_data;
 462
 463   for (element = 0; element < table->num_elements; element++) {
 464     item_data = stat_tap_get_field_data(table, element, MESSAGES_COLUMN);
 465     item_data->value.uint_value = 0;
 466     stat_tap_set_field_data(table, element, MESSAGES_COLUMN, item_data);
 467
 468     item_data = stat_tap_get_field_data(table, element, MESSAGES_SHARE_COLUMN);
 469     item_data->type = TABLE_ITEM_NONE;
 470     item_data->value.float_value = -1.0;
 471     stat_tap_set_field_data(table, element, MESSAGES_SHARE_COLUMN, item_data);
 472
 473     item_data = stat_tap_get_field_data(table, element, BYTES_COLUMN);
 474     item_data->value.uint_value = 0;
 475     stat_tap_set_field_data(table, element, BYTES_COLUMN, item_data);
 476
 477     item_data = stat_tap_get_field_data(table, element, BYTES_SHARE_COLUMN);
 478     item_data->type = TABLE_ITEM_NONE;
 479     item_data->value.float_value = -1.0;
 480     stat_tap_set_field_data(table, element, BYTES_SHARE_COLUMN, item_data);
 481
 482     item_data = stat_tap_get_field_data(table, element, FIRST_SEEN_COLUMN);
 483     item_data->type = TABLE_ITEM_NONE;
 484     item_data->value.float_value = DBL_MAX;
 485     stat_tap_set_field_data(table, element, FIRST_SEEN_COLUMN, item_data);
 486
 487     item_data = stat_tap_get_field_data(table, element, LAST_SEEN_COLUMN);
 488     item_data->type = TABLE_ITEM_NONE;
 489     item_data->value.float_value = DBL_MIN;
 490     stat_tap_set_field_data(table, element, LAST_SEEN_COLUMN, item_data);
 491
 492     item_data = stat_tap_get_field_data(table, element, INTERVAL_COLUMN);
 493     item_data->type = TABLE_ITEM_NONE;
 494     item_data->value.float_value = -1.0;
 495     stat_tap_set_field_data(table, element, INTERVAL_COLUMN, item_data);
 496
 497     item_data = stat_tap_get_field_data(table, element, MESSAGE_RATE_COLUMN);
 498     item_data->type = TABLE_ITEM_NONE;
 499     item_data->value.float_value = -1.0;
 500     stat_tap_set_field_data(table, element, MESSAGE_RATE_COLUMN, item_data);
 501
 502     item_data = stat_tap_get_field_data(table, element, BYTE_RATE_COLUMN);
 503     item_data->type = TABLE_ITEM_NONE;
 504     item_data->value.float_value = -1.0;
 505     stat_tap_set_field_data(table, element, BYTE_RATE_COLUMN, item_data);
 506   }
 507   componentstatusprotocol_total_msgs  = 0;
 508   componentstatusprotocol_total_bytes = 0;
 509 }
 510
 511
 512 /* Register the protocol with Wireshark */
 513 void
 514 proto_register_componentstatusprotocol(void)
 515 {
 516   /* Setup protocol subtree array */
 517   static int *ett[] = {
 518     &ett_componentstatusprotocol,
 519     &ett_message_flags,
 520     &ett_message_sender_id,
 521     &ett_cspreport_association_receiver_id,
 522     &ett_association
 523   };
 524
 525   static tap_param componentstatusprotocol_stat_params[] = {
 526     { PARAM_FILTER, "filter", "Filter", NULL, true }
 527   };
 528
 529   static stat_tap_table_ui componentstatusprotocol_stat_table = {
 530     REGISTER_STAT_GROUP_RSERPOOL,
 531     "ComponentStatusProtocol Statistics",
 532     "componentstatusprotocol",
 533     "componentstatusprotocol,stat",
 534     componentstatusprotocol_stat_init,
 535     componentstatusprotocol_stat_packet,
 536     componentstatusprotocol_stat_reset,
 537     NULL,
 538     NULL,
 539     array_length(componentstatusprotocol_stat_fields), componentstatusprotocol_stat_fields,
 540     array_length(componentstatusprotocol_stat_params), componentstatusprotocol_stat_params,
 541     NULL,
 542     0
 543   };
 544
 545   /* Register the protocol name and description */
 546   proto_componentstatusprotocol = proto_register_protocol("Component Status Protocol", "ComponentStatusProtocol", "componentstatusprotocol");
 547
 548   /* Required function calls to register the header fields and subtrees used */
 549   proto_register_field_array(proto_componentstatusprotocol, hf, array_length(hf));
 550   proto_register_subtree_array(ett, array_length(ett));
 551   tap_componentstatusprotocol = register_tap("componentstatusprotocol");
 552
 553   /* Register the dissector */
 554   componentstatusprotocol_handle = register_dissector("componentstatusprotocol", dissect_componentstatusprotocol, proto_componentstatusprotocol);
 555
 556   register_stat_tap_table_ui(&componentstatusprotocol_stat_table);
 557 }
 558
 559 void
 560 proto_reg_handoff_componentstatusprotocol(void)
 561 {
 562   dissector_add_uint_with_preference("udp.port", COMPONENTSTATUSPROTOCOL_PORT, componentstatusprotocol_handle);
 563 }
 564
 565 /*
 566  * Editor modelines
 567  *
 568  * Local Variables:
 569  * c-basic-offset: 2
 570  * tab-width: 8
 571  * indent-tabs-mode: nil
 572  * End:
 573  *
 574  * ex: set shiftwidth=2 tabstop=8 expandtab:
 575  * :indentSize=2:tabSize=8:noTabs=true:
 576  */