src/routeros.c

   1 /**
   2  * collectd - src/routeros.c
   3  * Copyright (C) 2009,2010  Florian octo Forster
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  18  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *   Florian octo Forster <octo at collectd.org>
  25  **/
  26
  27 #include "collectd.h"
  28
  29 #include "common.h"
  30 #include "plugin.h"
  31
  32 #include <routeros_api.h>
  33
  34 struct cr_data_s {
  35   ros_connection_t *connection;
  36
  37   char *node;
  38   char *service;
  39   char *username;
  40   char *password;
  41
  42   bool collect_interface;
  43   bool collect_regtable;
  44   bool collect_cpu_load;
  45   bool collect_memory;
  46   bool collect_df;
  47   bool collect_disk;
  48   bool collect_health;
  49 };
  50 typedef struct cr_data_s cr_data_t;
  51
  52 static void cr_submit_io(cr_data_t *rd, const char *type, /* {{{ */
  53                          const char *type_instance, derive_t rx, derive_t tx) {
  54   value_list_t vl = VALUE_LIST_INIT;
  55   value_t values[] = {
  56       {.derive = rx}, {.derive = tx},
  57   };
  58
  59   vl.values = values;
  60   vl.values_len = STATIC_ARRAY_SIZE(values);
  61   sstrncpy(vl.host, rd->node, sizeof(vl.host));
  62   sstrncpy(vl.plugin, "routeros", sizeof(vl.plugin));
  63   sstrncpy(vl.type, type, sizeof(vl.type));
  64   sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
  65
  66   plugin_dispatch_values(&vl);
  67 } /* }}} void cr_submit_io */
  68
  69 static void submit_interface(cr_data_t *rd, /* {{{ */
  70                              const ros_interface_t *i) {
  71   if (i == NULL)
  72     return;
  73
  74   if (!i->running) {
  75     submit_interface(rd, i->next);
  76     return;
  77   }
  78
  79   cr_submit_io(rd, "if_packets", i->name, (derive_t)i->rx_packets,
  80                (derive_t)i->tx_packets);
  81   cr_submit_io(rd, "if_octets", i->name, (derive_t)i->rx_bytes,
  82                (derive_t)i->tx_bytes);
  83   cr_submit_io(rd, "if_errors", i->name, (derive_t)i->rx_errors,
  84                (derive_t)i->tx_errors);
  85   cr_submit_io(rd, "if_dropped", i->name, (derive_t)i->rx_drops,
  86                (derive_t)i->tx_drops);
  87
  88   submit_interface(rd, i->next);
  89 } /* }}} void submit_interface */
  90
  91 static int handle_interface(__attribute__((unused))
  92                             ros_connection_t *c, /* {{{ */
  93                             const ros_interface_t *i, void *user_data) {
  94   if ((i == NULL) || (user_data == NULL))
  95     return EINVAL;
  96
  97   submit_interface(user_data, i);
  98   return 0;
  99 } /* }}} int handle_interface */
 100
 101 static void cr_submit_gauge(cr_data_t *rd, const char *type, /* {{{ */
 102                             const char *type_instance, gauge_t value) {
 103   value_t values[1];
 104   value_list_t vl = VALUE_LIST_INIT;
 105
 106   values[0].gauge = value;
 107
 108   vl.values = values;
 109   vl.values_len = STATIC_ARRAY_SIZE(values);
 110   sstrncpy(vl.host, rd->node, sizeof(vl.host));
 111   sstrncpy(vl.plugin, "routeros", sizeof(vl.plugin));
 112   sstrncpy(vl.type, type, sizeof(vl.type));
 113   sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
 114
 115   plugin_dispatch_values(&vl);
 116 } /* }}} void cr_submit_gauge */
 117
 118 #if ROS_VERSION >= ROS_VERSION_ENCODE(1, 1, 0)
 119 static void cr_submit_counter(cr_data_t *rd, const char *type, /* {{{ */
 120                               const char *type_instance, derive_t value) {
 121   value_t values[1];
 122   value_list_t vl = VALUE_LIST_INIT;
 123
 124   values[0].derive = value;
 125
 126   vl.values = values;
 127   vl.values_len = STATIC_ARRAY_SIZE(values);
 128   sstrncpy(vl.host, rd->node, sizeof(vl.host));
 129   sstrncpy(vl.plugin, "routeros", sizeof(vl.plugin));
 130   sstrncpy(vl.type, type, sizeof(vl.type));
 131   sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
 132
 133   plugin_dispatch_values(&vl);
 134 } /* }}} void cr_submit_gauge */
 135 #endif
 136
 137 static void submit_regtable(cr_data_t *rd, /* {{{ */
 138                             const ros_registration_table_t *r) {
 139   char type_instance[DATA_MAX_NAME_LEN];
 140
 141   if (r == NULL)
 142     return;
 143
 144   /*** RX ***/
 145   snprintf(type_instance, sizeof(type_instance), "%s-%s-rx", r->interface,
 146            r->radio_name ? r->radio_name : "default");
 147   cr_submit_gauge(rd, "bitrate", type_instance,
 148                   (gauge_t)(1000000.0 * r->rx_rate));
 149   cr_submit_gauge(rd, "signal_power", type_instance,
 150                   (gauge_t)r->rx_signal_strength);
 151   cr_submit_gauge(rd, "signal_quality", type_instance, (gauge_t)r->rx_ccq);
 152
 153   /*** TX ***/
 154   snprintf(type_instance, sizeof(type_instance), "%s-%s-tx", r->interface,
 155            r->radio_name ? r->radio_name : "default");
 156   cr_submit_gauge(rd, "bitrate", type_instance,
 157                   (gauge_t)(1000000.0 * r->tx_rate));
 158   cr_submit_gauge(rd, "signal_power", type_instance,
 159                   (gauge_t)r->tx_signal_strength);
 160   cr_submit_gauge(rd, "signal_quality", type_instance, (gauge_t)r->tx_ccq);
 161
 162   /*** RX / TX ***/
 163   snprintf(type_instance, sizeof(type_instance), "%s-%s", r->interface,
 164            r->radio_name ? r->radio_name : "default");
 165   cr_submit_io(rd, "if_octets", type_instance, (derive_t)r->rx_bytes,
 166                (derive_t)r->tx_bytes);
 167   cr_submit_gauge(rd, "snr", type_instance, (gauge_t)r->signal_to_noise);
 168
 169   submit_regtable(rd, r->next);
 170 } /* }}} void submit_regtable */
 171
 172 static int handle_regtable(__attribute__((unused))
 173                            ros_connection_t *c, /* {{{ */
 174                            const ros_registration_table_t *r, void *user_data) {
 175   if ((r == NULL) || (user_data == NULL))
 176     return EINVAL;
 177
 178   submit_regtable(user_data, r);
 179   return 0;
 180 } /* }}} int handle_regtable */
 181
 182 #if ROS_VERSION >= ROS_VERSION_ENCODE(1, 1, 0)
 183 static int handle_system_resource(__attribute__((unused))
 184                                   ros_connection_t *c, /* {{{ */
 185                                   const ros_system_resource_t *r,
 186                                   __attribute__((unused)) void *user_data) {
 187   cr_data_t *rd;
 188
 189   if ((r == NULL) || (user_data == NULL))
 190     return EINVAL;
 191   rd = user_data;
 192
 193   if (rd->collect_cpu_load)
 194     cr_submit_gauge(rd, "gauge", "cpu_load", (gauge_t)r->cpu_load);
 195
 196   if (rd->collect_memory) {
 197     cr_submit_gauge(rd, "memory", "used",
 198                     (gauge_t)(r->total_memory - r->free_memory));
 199     cr_submit_gauge(rd, "memory", "free", (gauge_t)r->free_memory);
 200   }
 201
 202   if (rd->collect_df) {
 203     cr_submit_gauge(rd, "df_complex", "used",
 204                     (gauge_t)(r->total_memory - r->free_memory));
 205     cr_submit_gauge(rd, "df_complex", "free", (gauge_t)r->free_memory);
 206   }
 207
 208   if (rd->collect_disk) {
 209     cr_submit_counter(rd, "counter", "secors_written",
 210                       (derive_t)r->write_sect_total);
 211     cr_submit_gauge(rd, "gauge", "bad_blocks", (gauge_t)r->bad_blocks);
 212   }
 213
 214   return 0;
 215 } /* }}} int handle_system_resource */
 216
 217 static int handle_system_health(__attribute__((unused))
 218                                 ros_connection_t *c, /* {{{ */
 219                                 const ros_system_health_t *r,
 220                                 __attribute__((unused)) void *user_data) {
 221   cr_data_t *rd;
 222
 223   if ((r == NULL) || (user_data == NULL))
 224     return (EINVAL);
 225   rd = user_data;
 226
 227   cr_submit_gauge(rd, "gauge", "voltage", (gauge_t)r->voltage);
 228   cr_submit_gauge(rd, "gauge", "temperature", (gauge_t)r->temperature);
 229
 230   return (0);
 231 } /* }}} int handle_system_health */
 232 #endif
 233
 234 static int cr_read(user_data_t *user_data) /* {{{ */
 235 {
 236   int status;
 237   cr_data_t *rd;
 238
 239   if (user_data == NULL)
 240     return EINVAL;
 241
 242   rd = user_data->data;
 243   if (rd == NULL)
 244     return EINVAL;
 245
 246   if (rd->connection == NULL) {
 247     rd->connection =
 248         ros_connect(rd->node, rd->service, rd->username, rd->password);
 249     if (rd->connection == NULL) {
 250       ERROR("routeros plugin: ros_connect failed: %s", STRERRNO);
 251       return -1;
 252     }
 253   }
 254   assert(rd->connection != NULL);
 255
 256   if (rd->collect_interface) {
 257     status = ros_interface(rd->connection, handle_interface,
 258                            /* user data = */ rd);
 259     if (status != 0) {
 260       ERROR("routeros plugin: ros_interface failed: %s", STRERROR(status));
 261       ros_disconnect(rd->connection);
 262       rd->connection = NULL;
 263       return -1;
 264     }
 265   }
 266
 267   if (rd->collect_regtable) {
 268     status = ros_registration_table(rd->connection, handle_regtable,
 269                                     /* user data = */ rd);
 270     if (status != 0) {
 271       ERROR("routeros plugin: ros_registration_table failed: %s",
 272             STRERROR(status));
 273       ros_disconnect(rd->connection);
 274       rd->connection = NULL;
 275       return -1;
 276     }
 277   }
 278
 279 #if ROS_VERSION >= ROS_VERSION_ENCODE(1, 1, 0)
 280   if (rd->collect_cpu_load || rd->collect_memory || rd->collect_df ||
 281       rd->collect_disk) {
 282     status = ros_system_resource(rd->connection, handle_system_resource,
 283                                  /* user data = */ rd);
 284     if (status != 0) {
 285       ERROR("routeros plugin: ros_system_resource failed: %s",
 286             STRERROR(status));
 287       ros_disconnect(rd->connection);
 288       rd->connection = NULL;
 289       return -1;
 290     }
 291   }
 292
 293   if (rd->collect_health) {
 294     status = ros_system_health(rd->connection, handle_system_health,
 295                                /* user data = */ rd);
 296     if (status != 0) {
 297       char errbuf[128];
 298       ERROR("routeros plugin: ros_system_health failed: %s",
 299             sstrerror(status, errbuf, sizeof(errbuf)));
 300       ros_disconnect(rd->connection);
 301       rd->connection = NULL;
 302       return (-1);
 303     }
 304   }
 305 #endif
 306
 307   return 0;
 308 } /* }}} int cr_read */
 309
 310 static void cr_free_data(cr_data_t *ptr) /* {{{ */
 311 {
 312   if (ptr == NULL)
 313     return;
 314
 315   ros_disconnect(ptr->connection);
 316   ptr->connection = NULL;
 317
 318   sfree(ptr->node);
 319   sfree(ptr->service);
 320   sfree(ptr->username);
 321   sfree(ptr->password);
 322
 323   sfree(ptr);
 324 } /* }}} void cr_free_data */
 325
 326 static int cr_config_router(oconfig_item_t *ci) /* {{{ */
 327 {
 328   cr_data_t *router_data;
 329   char read_name[128];
 330   int status;
 331
 332   router_data = calloc(1, sizeof(*router_data));
 333   if (router_data == NULL)
 334     return -1;
 335   router_data->connection = NULL;
 336   router_data->node = NULL;
 337   router_data->service = NULL;
 338   router_data->username = NULL;
 339   router_data->password = NULL;
 340
 341   status = 0;
 342   for (int i = 0; i < ci->children_num; i++) {
 343     oconfig_item_t *child = ci->children + i;
 344
 345     if (strcasecmp("Host", child->key) == 0)
 346       status = cf_util_get_string(child, &router_data->node);
 347     else if (strcasecmp("Port", child->key) == 0)
 348       status = cf_util_get_service(child, &router_data->service);
 349     else if (strcasecmp("User", child->key) == 0)
 350       status = cf_util_get_string(child, &router_data->username);
 351     else if (strcasecmp("Password", child->key) == 0)
 352       status = cf_util_get_string(child, &router_data->password);
 353     else if (strcasecmp("CollectInterface", child->key) == 0)
 354       cf_util_get_boolean(child, &router_data->collect_interface);
 355     else if (strcasecmp("CollectRegistrationTable", child->key) == 0)
 356       cf_util_get_boolean(child, &router_data->collect_regtable);
 357 #if ROS_VERSION >= ROS_VERSION_ENCODE(1, 1, 0)
 358     else if (strcasecmp("CollectCPULoad", child->key) == 0)
 359       cf_util_get_boolean(child, &router_data->collect_cpu_load);
 360     else if (strcasecmp("CollectMemory", child->key) == 0)
 361       cf_util_get_boolean(child, &router_data->collect_memory);
 362     else if (strcasecmp("CollectDF", child->key) == 0)
 363       cf_util_get_boolean(child, &router_data->collect_df);
 364     else if (strcasecmp("CollectDisk", child->key) == 0)
 365       cf_util_get_boolean(child, &router_data->collect_disk);
 366     else if (strcasecmp("CollectHealth", child->key) == 0)
 367       cf_util_get_boolean(child, &router_data->collect_health);
 368 #endif
 369     else {
 370       WARNING("routeros plugin: Unknown config option `%s'.", child->key);
 371     }
 372
 373     if (status != 0)
 374       break;
 375   }
 376
 377   if (status == 0) {
 378     if (router_data->node == NULL) {
 379       ERROR("routeros plugin: No `Host' option within a `Router' block. "
 380             "Where should I connect to?");
 381       status = -1;
 382     }
 383
 384     if (router_data->password == NULL) {
 385       ERROR("routeros plugin: No `Password' option within a `Router' block. "
 386             "How should I authenticate?");
 387       status = -1;
 388     }
 389
 390     if (!router_data->collect_interface && !router_data->collect_regtable) {
 391       ERROR("routeros plugin: No `Collect*' option within a `Router' block. "
 392             "What statistics should I collect?");
 393       status = -1;
 394     }
 395   }
 396
 397   if ((status == 0) && (router_data->username == NULL)) {
 398     router_data->username = sstrdup("admin");
 399     if (router_data->username == NULL) {
 400       ERROR("routeros plugin: sstrdup failed.");
 401       status = -1;
 402     }
 403   }
 404
 405   if (status != 0) {
 406     cr_free_data(router_data);
 407     return status;
 408   }
 409
 410   snprintf(read_name, sizeof(read_name), "routeros/%s", router_data->node);
 411   return plugin_register_complex_read(
 412       /* group = */ NULL, read_name, cr_read, /* interval = */ 0,
 413       &(user_data_t){
 414           .data = router_data, .free_func = (void *)cr_free_data,
 415       });
 416 } /* }}} int cr_config_router */
 417
 418 static int cr_config(oconfig_item_t *ci) {
 419   for (int i = 0; i < ci->children_num; i++) {
 420     oconfig_item_t *child = ci->children + i;
 421
 422     if (strcasecmp("Router", child->key) == 0)
 423       cr_config_router(child);
 424     else {
 425       WARNING("routeros plugin: Unknown config option `%s'.", child->key);
 426     }
 427   }
 428
 429   return 0;
 430 } /* }}} int cr_config */
 431
 432 void module_register(void) {
 433   plugin_register_complex_config("routeros", cr_config);
 434 } /* void module_register */