packet-stat.c

   1 /* packet-stat.c
   2  * Routines for stat dissection
   3  *
   4  * $Id: packet-stat.c,v 1.18 2002/10/23 21:17:03 guy Exp $
   5  *
   6  * Ethereal - Network traffic analyzer
   7  * By Gerald Combs <gerald@ethereal.com>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * Copied from packet-smb.c
  11  *
  12  * 2001  Ronnie Sahlberg <See AUTHORS for email>
  13  *     Added the dissectors for STAT protocol
  14  *
  15  * This program is free software; you can redistribute it and/or
  16  * modify it under the terms of the GNU General Public License
  17  * as published by the Free Software Foundation; either version 2
  18  * of the License, or (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include "config.h"
  32 #endif
  33
  34
  35 #include "packet-rpc.h"
  36 #include "packet-stat.h"
  37
  38 static int proto_stat = -1;
  39 static int hf_stat_mon_name = -1;
  40 static int hf_stat_stat_res = -1;
  41 static int hf_stat_stat_res_res = -1;
  42 static int hf_stat_stat_res_state = -1;
  43 static int hf_stat_state = -1;
  44 static int hf_stat_mon = -1;
  45 static int hf_stat_mon_id_name = -1;
  46 static int hf_stat_my_id = -1;
  47 static int hf_stat_my_id_hostname = -1;
  48 static int hf_stat_my_id_prog = -1;
  49 static int hf_stat_my_id_vers = -1;
  50 static int hf_stat_my_id_proc = -1;
  51 static int hf_stat_priv = -1;
  52 static int hf_stat_stat_chge = -1;
  53
  54 static gint ett_stat = -1;
  55 static gint ett_stat_stat_res = -1;
  56 static gint ett_stat_mon = -1;
  57 static gint ett_stat_my_id = -1;
  58 static gint ett_stat_stat_chge = -1;
  59
  60 #define STAT_SUCC       0
  61 #define STAT_FAIL       1
  62
  63 static const value_string stat_res[] =
  64 {
  65         {       0,      "STAT_SUCC" },
  66         {       1,      "STAT_FAIL" },
  67         {       0,      NULL }
  68 };
  69
  70 /* Calculate length (including padding) of my_id structure.
  71  * First read the length of the string and round it upwards to nearest
  72  * multiple of 4, then add 16 (4*uint32)
  73  */
  74 static int
  75 my_id_len(tvbuff_t *tvb, int offset)
  76 {
  77         int len;
  78
  79         len = tvb_get_ntohl(tvb, offset);
  80         if(len&0x03)
  81                 len = (len&0xfc)+4;
  82
  83         len += 16;
  84
  85         return len;
  86 }
  87
  88 /* Calculate length (including padding) of my_id structure.
  89  * First read the length of the string and round it upwards to nearest
  90  * multiple of 4, then add 4 (string len) and size of my_id struct.
  91  */
  92 static int
  93 mon_id_len(tvbuff_t *tvb, int offset)
  94 {
  95         int len;
  96
  97         len = tvb_get_ntohl(tvb, offset);
  98         if(len&0x03){
  99                 len = (len&0xfc)+4;
 100         }
 101
 102         len += 4;
 103
 104         return len+my_id_len(tvb,offset+len);
 105 }
 106
 107 static int
 108 dissect_stat_stat(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 109 {
 110         if (tree)
 111         {
 112                 offset = dissect_rpc_string(tvb,tree,hf_stat_mon_name,offset,NULL);
 113         }
 114
 115         return offset;
 116 }
 117
 118 static int
 119 dissect_stat_stat_res(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 120 {
 121         proto_item* sub_item = NULL;
 122         proto_tree* sub_tree = NULL;
 123         gint32 res;
 124         gint32 state;
 125
 126         if (tree) {
 127                 sub_item = proto_tree_add_item(tree, hf_stat_stat_res, tvb,
 128                                 offset, -1, FALSE);
 129                 if (sub_item)
 130                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_stat_res);
 131         }
 132
 133         res = tvb_get_ntohl(tvb, offset);
 134         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_stat_res_res,offset);
 135
 136         if (res==STAT_SUCC) {
 137                 state = tvb_get_ntohl(tvb, offset);
 138                 offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_stat_res_state,offset);
 139         } else {
 140                 offset += 4;
 141         }
 142
 143         return offset;
 144 }
 145
 146 static int
 147 dissect_stat_my_id(tvbuff_t *tvb, int offset, proto_tree *tree)
 148 {
 149         proto_item* sub_item = NULL;
 150         proto_tree* sub_tree = NULL;
 151
 152         if (tree) {
 153                 sub_item = proto_tree_add_item(tree, hf_stat_my_id, tvb,
 154                                 offset, my_id_len(tvb,offset), FALSE);
 155                 if (sub_item)
 156                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_my_id);
 157         }
 158
 159         offset = dissect_rpc_string(tvb,sub_tree,hf_stat_my_id_hostname,offset,NULL);
 160         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_my_id_prog,offset);
 161         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_my_id_vers,offset);
 162         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_my_id_proc,offset);
 163
 164         return offset;
 165 }
 166
 167 static int
 168 dissect_stat_mon_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 169 {
 170         proto_item* sub_item = NULL;
 171         proto_tree* sub_tree = NULL;
 172
 173         if (tree) {
 174                 sub_item = proto_tree_add_item(tree, hf_stat_mon, tvb,
 175                                 offset, mon_id_len(tvb,offset), FALSE);
 176                 if (sub_item)
 177                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_mon);
 178         }
 179
 180
 181         offset = dissect_rpc_string(tvb,sub_tree,hf_stat_mon_id_name,offset,NULL);
 182
 183         offset = dissect_stat_my_id(tvb,offset,sub_tree);
 184
 185         return offset;
 186 }
 187
 188 static int
 189 dissect_stat_priv(tvbuff_t *tvb, int offset, proto_tree *tree)
 190 {
 191         proto_tree_add_item(tree, hf_stat_priv, tvb, offset, 16, FALSE);
 192         offset += 16;
 193
 194         return offset;
 195 }
 196
 197 static int
 198 dissect_stat_mon(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
 199 {
 200
 201         offset = dissect_stat_mon_id(tvb,offset,pinfo,tree);
 202
 203         offset = dissect_stat_priv(tvb,offset,tree);
 204         return offset;
 205 }
 206
 207 static int
 208 dissect_stat_state(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 209 {
 210         offset = dissect_rpc_uint32(tvb,tree,hf_stat_state,offset);
 211
 212         return offset;
 213 }
 214
 215 static int
 216 dissect_stat_notify(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 217 {
 218         proto_item* sub_item = NULL;
 219         proto_tree* sub_tree = NULL;
 220         int start_offset = offset;
 221
 222         if (tree) {
 223                 sub_item = proto_tree_add_item(tree, hf_stat_stat_chge, tvb,
 224                                 offset, -1, FALSE);
 225                 if (sub_item)
 226                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_stat_chge);
 227         }
 228
 229         offset = dissect_rpc_string(tvb,sub_tree,hf_stat_mon_id_name,offset,NULL);
 230
 231         offset = dissect_rpc_uint32(tvb,tree,hf_stat_state,offset);
 232
 233         if(sub_item)
 234                 proto_item_set_len(sub_item, offset - start_offset);
 235
 236         return offset;
 237 }
 238
 239 static int
 240 dissect_stat_umon_all(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 241 {
 242         offset = dissect_stat_my_id(tvb,offset,tree);
 243
 244         return offset;
 245 }
 246
 247 /* proc number, "proc name", dissect_request, dissect_reply */
 248 /* NULL as function pointer means: type of arguments is "void". */
 249
 250 static const vsff stat_proc[] = {
 251     { 0, "NULL", NULL, NULL },
 252     { STATPROC_STAT,   "STAT",
 253                 dissect_stat_stat, dissect_stat_stat_res },
 254     { STATPROC_MON,   "MON",
 255                 dissect_stat_mon, dissect_stat_stat_res },
 256     { STATPROC_UNMON, "UNMON",
 257                 dissect_stat_mon_id, dissect_stat_state },
 258     { STATPROC_UNMON_ALL, "UNMON_ALL",
 259                 dissect_stat_umon_all, dissect_stat_state },
 260     { STATPROC_SIMU_CRASH, "SIMU_CRASH",
 261                 NULL, NULL },
 262     { STATPROC_NOTIFY, "NOTIFY",
 263                 dissect_stat_notify, NULL },
 264     { 0, NULL, NULL, NULL }
 265 };
 266 /* end of stat version 1 */
 267
 268
 269 void
 270 proto_register_stat(void)
 271 {
 272         static hf_register_info hf[] = {
 273                 { &hf_stat_mon_name, {
 274                         "Name", "stat.name", FT_STRING, BASE_DEC,
 275                         NULL, 0, "Name", HFILL }},
 276                 { &hf_stat_stat_res, {
 277                         "Status Result", "stat.stat_res", FT_NONE,0,
 278                         NULL, 0, "Status Result", HFILL }},
 279                 { &hf_stat_stat_res_res, {
 280                         "Result", "stat.stat_res.res", FT_UINT32, BASE_DEC,
 281                         VALS(stat_res), 0, "Result", HFILL }},
 282                 { &hf_stat_stat_res_state, {
 283                         "State", "stat.stat_res.state", FT_UINT32, BASE_DEC,
 284                         NULL, 0, "State", HFILL }},
 285                 { &hf_stat_mon, {
 286                         "Monitor", "stat.mon", FT_NONE, 0,
 287                         NULL, 0, "Monitor Host", HFILL }},
 288                 { &hf_stat_mon_id_name, {
 289                         "Monitor ID Name", "stat.mon_id.name", FT_STRING, BASE_DEC,
 290                         NULL, 0, "Monitor ID Name", HFILL }},
 291                 { &hf_stat_my_id, {
 292                         "My ID", "stat.my_id", FT_NONE,0,
 293                         NULL, 0, "My_ID structure", HFILL }},
 294                 { &hf_stat_my_id_hostname, {
 295                         "Hostname", "stat.my_id.hostname", FT_STRING, BASE_DEC,
 296                         NULL, 0, "My_ID Host to callback", HFILL }},
 297                 { &hf_stat_my_id_prog, {
 298                         "Program", "stat.my_id.prog", FT_UINT32, BASE_DEC,
 299                         NULL, 0, "My_ID Program to callback", HFILL }},
 300                 { &hf_stat_my_id_vers, {
 301                         "Version", "stat.my_id.vers", FT_UINT32, BASE_DEC,
 302                         NULL, 0, "My_ID Version of callback", HFILL }},
 303                 { &hf_stat_my_id_proc, {
 304                         "Procedure", "stat.my_id.proc", FT_UINT32, BASE_DEC,
 305                         NULL, 0, "My_ID Procedure to callback", HFILL }},
 306                 { &hf_stat_priv, {
 307                         "Priv", "stat.priv", FT_BYTES, BASE_HEX,
 308                         NULL, 0, "Private client supplied opaque data", HFILL }},
 309                 { &hf_stat_state, {
 310                         "State", "stat.state", FT_UINT32, BASE_DEC,
 311                         NULL, 0, "State of local NSM", HFILL }},
 312                 { &hf_stat_stat_chge, {
 313                         "Status Change", "stat.stat_chge", FT_NONE, 0,
 314                         NULL, 0, "Status Change structure", HFILL }},
 315         };
 316
 317         static gint *ett[] = {
 318                 &ett_stat,
 319                 &ett_stat_stat_res,
 320                 &ett_stat_mon,
 321                 &ett_stat_my_id,
 322                 &ett_stat_stat_chge,
 323         };
 324
 325         proto_stat = proto_register_protocol("Network Status Monitor Protocol", "STAT", "stat");
 326         proto_register_field_array(proto_stat, hf, array_length(hf));
 327         proto_register_subtree_array(ett, array_length(ett));
 328 }
 329
 330 void
 331 proto_reg_handoff_stat(void)
 332 {
 333         /* Register the protocol as RPC */
 334         rpc_init_prog(proto_stat, STAT_PROGRAM, ett_stat);
 335         /* Register the procedure tables */
 336         rpc_init_proc_table(STAT_PROGRAM, 1, stat_proc, -1);
 337 }