packet-stat.c

   1 /* packet-stat.c
   2  * Routines for stat dissection
   3  *
   4  * $Id: packet-stat.c,v 1.19 2002/11/01 00:48:39 sahlberg 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_procedure_v1 = -1;
  40 static int hf_stat_mon_name = -1;
  41 static int hf_stat_stat_res = -1;
  42 static int hf_stat_stat_res_res = -1;
  43 static int hf_stat_stat_res_state = -1;
  44 static int hf_stat_state = -1;
  45 static int hf_stat_mon = -1;
  46 static int hf_stat_mon_id_name = -1;
  47 static int hf_stat_my_id = -1;
  48 static int hf_stat_my_id_hostname = -1;
  49 static int hf_stat_my_id_prog = -1;
  50 static int hf_stat_my_id_vers = -1;
  51 static int hf_stat_my_id_proc = -1;
  52 static int hf_stat_priv = -1;
  53 static int hf_stat_stat_chge = -1;
  54
  55 static gint ett_stat = -1;
  56 static gint ett_stat_stat_res = -1;
  57 static gint ett_stat_mon = -1;
  58 static gint ett_stat_my_id = -1;
  59 static gint ett_stat_stat_chge = -1;
  60
  61 #define STAT_SUCC       0
  62 #define STAT_FAIL       1
  63
  64 static const value_string stat_res[] =
  65 {
  66         {       0,      "STAT_SUCC" },
  67         {       1,      "STAT_FAIL" },
  68         {       0,      NULL }
  69 };
  70
  71 /* Calculate length (including padding) of my_id structure.
  72  * First read the length of the string and round it upwards to nearest
  73  * multiple of 4, then add 16 (4*uint32)
  74  */
  75 static int
  76 my_id_len(tvbuff_t *tvb, int offset)
  77 {
  78         int len;
  79
  80         len = tvb_get_ntohl(tvb, offset);
  81         if(len&0x03)
  82                 len = (len&0xfc)+4;
  83
  84         len += 16;
  85
  86         return len;
  87 }
  88
  89 /* Calculate length (including padding) of my_id structure.
  90  * First read the length of the string and round it upwards to nearest
  91  * multiple of 4, then add 4 (string len) and size of my_id struct.
  92  */
  93 static int
  94 mon_id_len(tvbuff_t *tvb, int offset)
  95 {
  96         int len;
  97
  98         len = tvb_get_ntohl(tvb, offset);
  99         if(len&0x03){
 100                 len = (len&0xfc)+4;
 101         }
 102
 103         len += 4;
 104
 105         return len+my_id_len(tvb,offset+len);
 106 }
 107
 108 static int
 109 dissect_stat_stat(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 110 {
 111         if (tree)
 112         {
 113                 offset = dissect_rpc_string(tvb,tree,hf_stat_mon_name,offset,NULL);
 114         }
 115
 116         return offset;
 117 }
 118
 119 static int
 120 dissect_stat_stat_res(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 121 {
 122         proto_item* sub_item = NULL;
 123         proto_tree* sub_tree = NULL;
 124         gint32 res;
 125         gint32 state;
 126
 127         if (tree) {
 128                 sub_item = proto_tree_add_item(tree, hf_stat_stat_res, tvb,
 129                                 offset, -1, FALSE);
 130                 if (sub_item)
 131                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_stat_res);
 132         }
 133
 134         res = tvb_get_ntohl(tvb, offset);
 135         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_stat_res_res,offset);
 136
 137         if (res==STAT_SUCC) {
 138                 state = tvb_get_ntohl(tvb, offset);
 139                 offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_stat_res_state,offset);
 140         } else {
 141                 offset += 4;
 142         }
 143
 144         return offset;
 145 }
 146
 147 static int
 148 dissect_stat_my_id(tvbuff_t *tvb, int offset, proto_tree *tree)
 149 {
 150         proto_item* sub_item = NULL;
 151         proto_tree* sub_tree = NULL;
 152
 153         if (tree) {
 154                 sub_item = proto_tree_add_item(tree, hf_stat_my_id, tvb,
 155                                 offset, my_id_len(tvb,offset), FALSE);
 156                 if (sub_item)
 157                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_my_id);
 158         }
 159
 160         offset = dissect_rpc_string(tvb,sub_tree,hf_stat_my_id_hostname,offset,NULL);
 161         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_my_id_prog,offset);
 162         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_my_id_vers,offset);
 163         offset = dissect_rpc_uint32(tvb,sub_tree,hf_stat_my_id_proc,offset);
 164
 165         return offset;
 166 }
 167
 168 static int
 169 dissect_stat_mon_id(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 170 {
 171         proto_item* sub_item = NULL;
 172         proto_tree* sub_tree = NULL;
 173
 174         if (tree) {
 175                 sub_item = proto_tree_add_item(tree, hf_stat_mon, tvb,
 176                                 offset, mon_id_len(tvb,offset), FALSE);
 177                 if (sub_item)
 178                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_mon);
 179         }
 180
 181
 182         offset = dissect_rpc_string(tvb,sub_tree,hf_stat_mon_id_name,offset,NULL);
 183
 184         offset = dissect_stat_my_id(tvb,offset,sub_tree);
 185
 186         return offset;
 187 }
 188
 189 static int
 190 dissect_stat_priv(tvbuff_t *tvb, int offset, proto_tree *tree)
 191 {
 192         proto_tree_add_item(tree, hf_stat_priv, tvb, offset, 16, FALSE);
 193         offset += 16;
 194
 195         return offset;
 196 }
 197
 198 static int
 199 dissect_stat_mon(tvbuff_t *tvb, int offset, packet_info *pinfo, proto_tree *tree)
 200 {
 201
 202         offset = dissect_stat_mon_id(tvb,offset,pinfo,tree);
 203
 204         offset = dissect_stat_priv(tvb,offset,tree);
 205         return offset;
 206 }
 207
 208 static int
 209 dissect_stat_state(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 210 {
 211         offset = dissect_rpc_uint32(tvb,tree,hf_stat_state,offset);
 212
 213         return offset;
 214 }
 215
 216 static int
 217 dissect_stat_notify(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 218 {
 219         proto_item* sub_item = NULL;
 220         proto_tree* sub_tree = NULL;
 221         int start_offset = offset;
 222
 223         if (tree) {
 224                 sub_item = proto_tree_add_item(tree, hf_stat_stat_chge, tvb,
 225                                 offset, -1, FALSE);
 226                 if (sub_item)
 227                         sub_tree = proto_item_add_subtree(sub_item, ett_stat_stat_chge);
 228         }
 229
 230         offset = dissect_rpc_string(tvb,sub_tree,hf_stat_mon_id_name,offset,NULL);
 231
 232         offset = dissect_rpc_uint32(tvb,tree,hf_stat_state,offset);
 233
 234         if(sub_item)
 235                 proto_item_set_len(sub_item, offset - start_offset);
 236
 237         return offset;
 238 }
 239
 240 static int
 241 dissect_stat_umon_all(tvbuff_t *tvb, int offset, packet_info *pinfo _U_, proto_tree *tree)
 242 {
 243         offset = dissect_stat_my_id(tvb,offset,tree);
 244
 245         return offset;
 246 }
 247
 248 /* proc number, "proc name", dissect_request, dissect_reply */
 249 /* NULL as function pointer means: type of arguments is "void". */
 250
 251 static const vsff stat1_proc[] = {
 252     { 0, "NULL", NULL, NULL },
 253     { STATPROC_STAT,   "STAT",
 254                 dissect_stat_stat, dissect_stat_stat_res },
 255     { STATPROC_MON,   "MON",
 256                 dissect_stat_mon, dissect_stat_stat_res },
 257     { STATPROC_UNMON, "UNMON",
 258                 dissect_stat_mon_id, dissect_stat_state },
 259     { STATPROC_UNMON_ALL, "UNMON_ALL",
 260                 dissect_stat_umon_all, dissect_stat_state },
 261     { STATPROC_SIMU_CRASH, "SIMU_CRASH",
 262                 NULL, NULL },
 263     { STATPROC_NOTIFY, "NOTIFY",
 264                 dissect_stat_notify, NULL },
 265     { 0, NULL, NULL, NULL }
 266 };
 267 static const value_string stat1_proc_vals[] = {
 268     { 0, "NULL" },
 269     { STATPROC_STAT,   "STAT" },
 270     { STATPROC_MON,   "MON" },
 271     { STATPROC_UNMON, "UNMON" },
 272     { STATPROC_UNMON_ALL, "UNMON_ALL" },
 273     { STATPROC_SIMU_CRASH, "SIMU_CRASH" },
 274     { STATPROC_NOTIFY, "NOTIFY" },
 275     { 0, NULL }
 276 };
 277 /* end of stat version 1 */
 278
 279
 280 void
 281 proto_register_stat(void)
 282 {
 283         static hf_register_info hf[] = {
 284                 { &hf_stat_procedure_v1, {
 285                         "V1 Procedure", "stat.procedure_v1", FT_UINT32, BASE_DEC,
 286                         VALS(stat1_proc_vals), 0, "V1 Procedure", HFILL }},
 287                 { &hf_stat_mon_name, {
 288                         "Name", "stat.name", FT_STRING, BASE_DEC,
 289                         NULL, 0, "Name", HFILL }},
 290                 { &hf_stat_stat_res, {
 291                         "Status Result", "stat.stat_res", FT_NONE,0,
 292                         NULL, 0, "Status Result", HFILL }},
 293                 { &hf_stat_stat_res_res, {
 294                         "Result", "stat.stat_res.res", FT_UINT32, BASE_DEC,
 295                         VALS(stat_res), 0, "Result", HFILL }},
 296                 { &hf_stat_stat_res_state, {
 297                         "State", "stat.stat_res.state", FT_UINT32, BASE_DEC,
 298                         NULL, 0, "State", HFILL }},
 299                 { &hf_stat_mon, {
 300                         "Monitor", "stat.mon", FT_NONE, 0,
 301                         NULL, 0, "Monitor Host", HFILL }},
 302                 { &hf_stat_mon_id_name, {
 303                         "Monitor ID Name", "stat.mon_id.name", FT_STRING, BASE_DEC,
 304                         NULL, 0, "Monitor ID Name", HFILL }},
 305                 { &hf_stat_my_id, {
 306                         "My ID", "stat.my_id", FT_NONE,0,
 307                         NULL, 0, "My_ID structure", HFILL }},
 308                 { &hf_stat_my_id_hostname, {
 309                         "Hostname", "stat.my_id.hostname", FT_STRING, BASE_DEC,
 310                         NULL, 0, "My_ID Host to callback", HFILL }},
 311                 { &hf_stat_my_id_prog, {
 312                         "Program", "stat.my_id.prog", FT_UINT32, BASE_DEC,
 313                         NULL, 0, "My_ID Program to callback", HFILL }},
 314                 { &hf_stat_my_id_vers, {
 315                         "Version", "stat.my_id.vers", FT_UINT32, BASE_DEC,
 316                         NULL, 0, "My_ID Version of callback", HFILL }},
 317                 { &hf_stat_my_id_proc, {
 318                         "Procedure", "stat.my_id.proc", FT_UINT32, BASE_DEC,
 319                         NULL, 0, "My_ID Procedure to callback", HFILL }},
 320                 { &hf_stat_priv, {
 321                         "Priv", "stat.priv", FT_BYTES, BASE_HEX,
 322                         NULL, 0, "Private client supplied opaque data", HFILL }},
 323                 { &hf_stat_state, {
 324                         "State", "stat.state", FT_UINT32, BASE_DEC,
 325                         NULL, 0, "State of local NSM", HFILL }},
 326                 { &hf_stat_stat_chge, {
 327                         "Status Change", "stat.stat_chge", FT_NONE, 0,
 328                         NULL, 0, "Status Change structure", HFILL }},
 329         };
 330
 331         static gint *ett[] = {
 332                 &ett_stat,
 333                 &ett_stat_stat_res,
 334                 &ett_stat_mon,
 335                 &ett_stat_my_id,
 336                 &ett_stat_stat_chge,
 337         };
 338
 339         proto_stat = proto_register_protocol("Network Status Monitor Protocol", "STAT", "stat");
 340         proto_register_field_array(proto_stat, hf, array_length(hf));
 341         proto_register_subtree_array(ett, array_length(ett));
 342 }
 343
 344 void
 345 proto_reg_handoff_stat(void)
 346 {
 347         /* Register the protocol as RPC */
 348         rpc_init_prog(proto_stat, STAT_PROGRAM, ett_stat);
 349         /* Register the procedure tables */
 350         rpc_init_proc_table(STAT_PROGRAM, 1, stat1_proc, hf_stat_procedure_v1);
 351 }