src/varnish.c

   1 /**
   2  * collectd - src/varnish.c
   3  * Copyright (C) 2010      Jérôme Renard
   4  * Copyright (C) 2010      Marc Fournier
   5  * Copyright (C) 2010-2012 Florian Forster
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; only version 2 of the License is applicable.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  *
  20  * Authors:
  21  *   Jérôme Renard <jerome.renard at gmail.com>
  22  *   Marc Fournier <marc.fournier at camptocamp.com>
  23  *   Florian octo Forster <octo at collectd.org>
  24  **/
  25
  26 #include "collectd.h"
  27 #include "common.h"
  28 #include "plugin.h"
  29 #include "configfile.h"
  30
  31 #if HAVE_VARNISH_V4
  32 #include <vapi/vsm.h>
  33 #include <vapi/vsc.h>
  34 typedef struct VSC_C_main c_varnish_stats_t;
  35 #endif
  36
  37 #if HAVE_VARNISH_V3
  38 #include <varnishapi.h>
  39 #include <vsc.h>
  40 typedef struct VSC_C_main c_varnish_stats_t;
  41 #endif
  42
  43 #if HAVE_VARNISH_V2
  44 #include <varnishapi.h>
  45 typedef struct varnish_stats c_varnish_stats_t;
  46 #endif
  47
  48 /* {{{ user_config_s */
  49 struct user_config_s {
  50         char *instance;
  51
  52         _Bool collect_cache;
  53         _Bool collect_connections;
  54         _Bool collect_esi;
  55         _Bool collect_backend;
  56 #ifdef HAVE_VARNISH_V3
  57         _Bool collect_dirdns;
  58 #endif
  59         _Bool collect_fetch;
  60         _Bool collect_hcb;
  61         _Bool collect_objects;
  62 #if HAVE_VARNISH_V2
  63         _Bool collect_purge;
  64 #else
  65         _Bool collect_ban;
  66 #endif
  67         _Bool collect_session;
  68         _Bool collect_shm;
  69         _Bool collect_sms;
  70 #if HAVE_VARNISH_V2
  71         _Bool collect_sm;
  72         _Bool collect_sma;
  73 #endif
  74         _Bool collect_struct;
  75         _Bool collect_totals;
  76 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
  77         _Bool collect_uptime;
  78 #endif
  79         _Bool collect_vcl;
  80         _Bool collect_workers;
  81 #if HAVE_VARNISH_V4
  82         _Bool collect_vsm;
  83 #endif
  84 };
  85 typedef struct user_config_s user_config_t; /* }}} */
  86
  87 static _Bool have_instance = 0;
  88
  89 static int varnish_submit (const char *plugin_instance, /* {{{ */
  90                 const char *category, const char *type, const char *type_instance, value_t value)
  91 {
  92         value_list_t vl = VALUE_LIST_INIT;
  93
  94         vl.values = &value;
  95         vl.values_len = 1;
  96
  97         sstrncpy (vl.host, hostname_g, sizeof (vl.host));
  98
  99         sstrncpy (vl.plugin, "varnish", sizeof (vl.plugin));
 100
 101         if (plugin_instance == NULL)
 102                 plugin_instance = "default";
 103
 104         ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
 105                 "%s-%s", plugin_instance, category);
 106
 107         sstrncpy (vl.type, type, sizeof (vl.type));
 108
 109         if (type_instance != NULL)
 110                 sstrncpy (vl.type_instance, type_instance,
 111                                 sizeof (vl.type_instance));
 112
 113         return (plugin_dispatch_values (&vl));
 114 } /* }}} int varnish_submit */
 115
 116 static int varnish_submit_gauge (const char *plugin_instance, /* {{{ */
 117                 const char *category, const char *type, const char *type_instance,
 118                 uint64_t gauge_value)
 119 {
 120         value_t value;
 121
 122         value.gauge = (gauge_t) gauge_value;
 123
 124         return (varnish_submit (plugin_instance, category, type, type_instance, value));
 125 } /* }}} int varnish_submit_gauge */
 126
 127 static int varnish_submit_derive (const char *plugin_instance, /* {{{ */
 128                 const char *category, const char *type, const char *type_instance,
 129                 uint64_t derive_value)
 130 {
 131         value_t value;
 132
 133         value.derive = (derive_t) derive_value;
 134
 135         return (varnish_submit (plugin_instance, category, type, type_instance, value));
 136 } /* }}} int varnish_submit_derive */
 137
 138 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 139 static int varnish_monitor (void *priv, const struct VSC_point * const pt) /* {{{ */
 140 {
 141         uint64_t val;
 142         const user_config_t *conf;
 143         const char *class;
 144         const char *ident;
 145         const char *name;
 146
 147         if (pt == NULL)
 148                 return (0);
 149
 150         conf = priv;
 151
 152 #if HAVE_VARNISH_V4
 153         class = pt->section->fantom->type;
 154         ident = pt->section->fantom->ident;
 155         name  = pt->desc->name;
 156
 157         if (strcmp(class, "MAIN") != 0)
 158                 return (0);
 159
 160 #elif HAVE_VARNISH_V3
 161         class = pt->class;
 162         ident = pt->ident;
 163         name  = pt->name;
 164
 165         if (strcmp(class, "") != 0)
 166                 return (0);
 167 #endif
 168
 169         val = *(const volatile uint64_t*) pt->ptr;
 170
 171         if (conf->collect_cache)
 172         {
 173                 if (strcmp(name, "cache_hit") == 0)
 174                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "hit",     val);
 175                 else if (strcmp(name, "cache_miss") == 0)
 176                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "miss",    val);
 177                 else if (strcmp(name, "cache_hitpass") == 0)
 178                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", val);
 179         }
 180
 181         if (conf->collect_connections)
 182         {
 183                 if (strcmp(name, "client_conn") == 0)
 184                         return varnish_submit_derive (conf->instance, "connections", "connections", "accepted", val);
 185                 else if (strcmp(name, "client_drop") == 0)
 186                         return varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , val);
 187                 else if (strcmp(name, "client_req") == 0)
 188                         return varnish_submit_derive (conf->instance, "connections", "connections", "received", val);
 189         }
 190
 191 #ifdef HAVE_VARNISH_V3
 192         if (conf->collect_dirdns)
 193         {
 194                 if (strcmp(name, "dir_dns_lookups") == 0)
 195                         return varnish_submit_derive (conf->instance, "dirdns", "cache_operation", "lookups",    val);
 196                 else if (strcmp(name, "dir_dns_failed") == 0)
 197                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "failed",     val);
 198                 else if (strcmp(name, "dir_dns_hit") == 0)
 199                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "hits",       val);
 200                 else if (strcmp(name, "dir_dns_cache_full") == 0)
 201                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "cache_full", val);
 202         }
 203 #endif
 204
 205         if (conf->collect_esi)
 206         {
 207                 if (strcmp(name, "esi_errors") == 0)
 208                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "error",   val);
 209                 else if (strcmp(name, "esi_parse") == 0)
 210                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed",  val);
 211                 else if (strcmp(name, "esi_warnings") == 0)
 212                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "warning", val);
 213         }
 214
 215         if (conf->collect_backend)
 216         {
 217                 if (strcmp(name, "backend_conn") == 0)
 218                         return varnish_submit_derive (conf->instance, "backend", "connections", "success",       val);
 219                 else if (strcmp(name, "backend_unhealthy") == 0)
 220                         return varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", val);
 221                 else if (strcmp(name, "backend_busy") == 0)
 222                         return varnish_submit_derive (conf->instance, "backend", "connections", "too-many",      val);
 223                 else if (strcmp(name, "backend_fail") == 0)
 224                         return varnish_submit_derive (conf->instance, "backend", "connections", "failures",      val);
 225                 else if (strcmp(name, "backend_reuse") == 0)
 226                         return varnish_submit_derive (conf->instance, "backend", "connections", "reuses",        val);
 227                 else if (strcmp(name, "backend_toolate") == 0)
 228                         return varnish_submit_derive (conf->instance, "backend", "connections", "was-closed",    val);
 229                 else if (strcmp(name, "backend_recycle") == 0)
 230                         return varnish_submit_derive (conf->instance, "backend", "connections", "recycled",      val);
 231                 else if (strcmp(name, "backend_unused") == 0)
 232                         return varnish_submit_derive (conf->instance, "backend", "connections", "unused",        val);
 233                 else if (strcmp(name, "backend_retry") == 0)
 234                         return varnish_submit_derive (conf->instance, "backend", "connections", "retries",       val);
 235                 else if (strcmp(name, "backend_req") == 0)
 236                         return varnish_submit_derive (conf->instance, "backend", "http_requests", "requests",    val);
 237                 else if (strcmp(name, "n_backend") == 0)
 238                         return varnish_submit_gauge  (conf->instance, "backend", "backends", "n_backends",       val);
 239         }
 240
 241         if (conf->collect_fetch)
 242         {
 243                 if (strcmp(name, "fetch_head") == 0)
 244                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "head",        val);
 245                 else if (strcmp(name, "fetch_length") == 0)
 246                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "length",      val);
 247                 else if (strcmp(name, "fetch_chunked") == 0)
 248                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked",     val);
 249                 else if (strcmp(name, "fetch_eof") == 0)
 250                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof",         val);
 251                 else if (strcmp(name, "fetch_bad") == 0)
 252                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", val);
 253                 else if (strcmp(name, "fetch_close") == 0)
 254                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "close",       val);
 255                 else if (strcmp(name, "fetch_oldhttp") == 0)
 256                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp",     val);
 257                 else if (strcmp(name, "fetch_zero") == 0)
 258                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero",        val);
 259                 else if (strcmp(name, "fetch_failed") == 0)
 260                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed",      val);
 261                 else if (strcmp(name, "fetch_1xx") == 0)
 262                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_1xx", val);
 263                 else if (strcmp(name, "fetch_204") == 0)
 264                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_204", val);
 265                 else if (strcmp(name, "fetch_304") == 0)
 266                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_304", val);
 267         }
 268
 269         if (conf->collect_hcb)
 270         {
 271                 if (strcmp(name, "hcb_nolock") == 0)
 272                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", val);
 273                 else if (strcmp(name, "hcb_lock") == 0)
 274                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock",   val);
 275                 else if (strcmp(name, "hcb_insert") == 0)
 276                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert",        val);
 277         }
 278
 279         if (conf->collect_objects)
 280         {
 281                 if (strcmp(name, "n_expired") == 0)
 282                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "expired",            val);
 283                 else if (strcmp(name, "n_lru_nuked") == 0)
 284                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_nuked",          val);
 285                 else if (strcmp(name, "n_lru_saved") == 0)
 286                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_saved",          val);
 287                 else if (strcmp(name, "n_lru_moved") == 0)
 288                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_moved",          val);
 289                 else if (strcmp(name, "n_deathrow") == 0)
 290                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "deathrow",           val);
 291                 else if (strcmp(name, "losthdr") == 0)
 292                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "header_overflow",    val);
 293                 else if (strcmp(name, "n_obj_purged") == 0)
 294                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "purged",             val);
 295                 else if (strcmp(name, "n_objsendfile") == 0)
 296                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_sendfile",      val);
 297                 else if (strcmp(name, "n_objwrite") == 0)
 298                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_write",         val);
 299                 else if (strcmp(name, "n_objoverflow") == 0)
 300                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "workspace_overflow", val);
 301         }
 302
 303 #if HAVE_VARNISH_V3
 304         if (conf->collect_ban)
 305         {
 306                 if (strcmp(name, "n_ban") == 0)
 307                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "total",          val);
 308                 else if (strcmp(name, "n_ban_add") == 0)
 309                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "added",          val);
 310                 else if (strcmp(name, "n_ban_retire") == 0)
 311                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted",        val);
 312                 else if (strcmp(name, "n_ban_obj_test") == 0)
 313                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "objects_tested", val);
 314                 else if (strcmp(name, "n_ban_re_test") == 0)
 315                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "regexps_tested", val);
 316                 else if (strcmp(name, "n_ban_dups") == 0)
 317                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate",      val);
 318         }
 319 #endif
 320 #if HAVE_VARNISH_V4
 321         if (conf->collect_ban)
 322         {
 323                 if (strcmp(name, "bans") == 0)
 324                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "total",     val);
 325                 else if (strcmp(name, "bans_added") == 0)
 326                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "added",     val);
 327                 else if (strcmp(name, "bans_obj") == 0)
 328                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "obj",       val);
 329                 else if (strcmp(name, "bans_req") == 0)
 330                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "req",       val);
 331                 else if (strcmp(name, "bans_completed") == 0)
 332                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "completed", val);
 333                 else if (strcmp(name, "bans_deleted") == 0)
 334                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted",   val);
 335                 else if (strcmp(name, "bans_tested") == 0)
 336                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "tested",    val);
 337                 else if (strcmp(name, "bans_dups") == 0)
 338                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate", val);
 339         }
 340 #endif
 341
 342         if (conf->collect_session)
 343         {
 344                 if (strcmp(name, "sess_closed") == 0)
 345                         return varnish_submit_derive (conf->instance, "session", "total_operations", "closed",    val);
 346                 else if (strcmp(name, "sess_pipeline") == 0)
 347                         return varnish_submit_derive (conf->instance, "session", "total_operations", "pipeline",  val);
 348                 else if (strcmp(name, "sess_readahead") == 0)
 349                         return varnish_submit_derive (conf->instance, "session", "total_operations", "readahead", val);
 350                 else if (strcmp(name, "sess_conn") == 0)
 351                         return varnish_submit_derive (conf->instance, "session", "total_operations", "accepted",  val);
 352                 else if (strcmp(name, "sess_drop") == 0)
 353                         return varnish_submit_derive (conf->instance, "session", "total_operations", "dropped",   val);
 354                 else if (strcmp(name, "sess_fail") == 0)
 355                         return varnish_submit_derive (conf->instance, "session", "total_operations", "failed",    val);
 356                 else if (strcmp(name, "sess_pipe_overflow") == 0)
 357                         return varnish_submit_derive (conf->instance, "session", "total_operations", "overflow",  val);
 358                 else if (strcmp(name, "sess_queued") == 0)
 359                         return varnish_submit_derive (conf->instance, "session", "total_operations", "queued",    val);
 360                 else if (strcmp(name, "sess_linger") == 0)
 361                         return varnish_submit_derive (conf->instance, "session", "total_operations", "linger",    val);
 362                 else if (strcmp(name, "sess_herd") == 0)
 363                         return varnish_submit_derive (conf->instance, "session", "total_operations", "herd",      val);
 364         }
 365
 366         if (conf->collect_shm)
 367         {
 368                 if (strcmp(name, "shm_records") == 0)
 369                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "records",    val);
 370                 else if (strcmp(name, "shm_writes") == 0)
 371                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "writes",     val);
 372                 else if (strcmp(name, "shm_flushes") == 0)
 373                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes",    val);
 374                 else if (strcmp(name, "shm_cont") == 0)
 375                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", val);
 376                 else if (strcmp(name, "shm_cycles") == 0)
 377                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles",     val);
 378         }
 379
 380         if (conf->collect_sms)
 381         {
 382                 if (strcmp(name, "sms_nreq") == 0)
 383                         return varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", val);
 384                 else if (strcmp(name, "sms_nobj") == 0)
 385                         return varnish_submit_gauge (conf->instance,  "sms", "requests", "outstanding",     val);
 386                 else if (strcmp(name, "sms_nbytes") == 0)
 387                         return varnish_submit_gauge (conf->instance,  "sms", "bytes", "outstanding",        val);
 388                 else if (strcmp(name, "sms_balloc") == 0)
 389                         return varnish_submit_derive (conf->instance,  "sms", "total_bytes", "allocated",   val);
 390                 else if (strcmp(name, "sms_bfree") == 0)
 391                         return varnish_submit_derive (conf->instance,  "sms", "total_bytes", "free",        val);
 392         }
 393
 394         if (conf->collect_struct)
 395         {
 396                 if (strcmp(name, "n_sess_mem") == 0)
 397                         return varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess_mem",  val);
 398                 else if (strcmp(name, "n_sess") == 0)
 399                         return varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess",      val);
 400                 else if (strcmp(name, "n_object") == 0)
 401                         return varnish_submit_gauge (conf->instance, "struct", "objects", "object",             val);
 402                 else if (strcmp(name, "n_vampireobject") == 0)
 403                         return varnish_submit_gauge (conf->instance, "struct", "objects", "vampireobject",      val);
 404                 else if (strcmp(name, "n_objectcore") == 0)
 405                         return varnish_submit_gauge (conf->instance, "struct", "objects", "objectcore",         val);
 406                 else if (strcmp(name, "n_waitinglist") == 0)
 407                         return varnish_submit_gauge (conf->instance, "struct", "objects", "waitinglist",        val);
 408                 else if (strcmp(name, "n_objecthead") == 0)
 409                         return varnish_submit_gauge (conf->instance, "struct", "objects", "objecthead",         val);
 410                 else if (strcmp(name, "n_smf") == 0)
 411                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf",                val);
 412                 else if (strcmp(name, "n_smf_frag") == 0)
 413                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf_frag",           val);
 414                 else if (strcmp(name, "n_smf_large") == 0)
 415                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf_large",          val);
 416                 else if (strcmp(name, "n_vbe_conn") == 0)
 417                         return varnish_submit_gauge (conf->instance, "struct", "objects", "vbe_conn",           val);
 418         }
 419
 420         if (conf->collect_totals)
 421         {
 422                 if (strcmp(name, "s_sess") == 0)
 423                         return varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions",  val);
 424                 else if (strcmp(name, "s_req") == 0)
 425                         return varnish_submit_derive (conf->instance, "totals", "total_requests", "requests",  val);
 426                 else if (strcmp(name, "s_pipe") == 0)
 427                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe",    val);
 428                 else if (strcmp(name, "s_pass") == 0)
 429                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "pass",    val);
 430                 else if (strcmp(name, "s_fetch") == 0)
 431                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", val);
 432                 else if (strcmp(name, "s_synth") == 0)
 433                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "synth",        val);
 434                 else if (strcmp(name, "s_req_hdrbytes") == 0)
 435                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_header",   val);
 436                 else if (strcmp(name, "s_req_bodybytes") == 0)
 437                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_body",     val);
 438                 else if (strcmp(name, "s_resp_hdrbytes") == 0)
 439                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_header",  val);
 440                 else if (strcmp(name, "s_resp_bodybytes") == 0)
 441                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_body",    val);
 442                 else if (strcmp(name, "s_pipe_hdrbytes") == 0)
 443                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_header",  val);
 444                 else if (strcmp(name, "s_pipe_in") == 0)
 445                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_in",      val);
 446                 else if (strcmp(name, "s_pipe_out") == 0)
 447                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_out",     val);
 448                 else if (strcmp(name, "n_purges") == 0)
 449                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "purges",  val);
 450                 else if (strcmp(name, "s_hdrbytes") == 0)
 451                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", val);
 452                 else if (strcmp(name, "s_bodybytes") == 0)
 453                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes",   val);
 454                 else if (strcmp(name, "n_gzip") == 0)
 455                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "gzip",    val);
 456                 else if (strcmp(name, "n_gunzip") == 0)
 457                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "gunzip",  val);
 458         }
 459
 460         if (conf->collect_uptime)
 461         {
 462                 if (strcmp(name, "uptime") == 0)
 463                         return varnish_submit_gauge (conf->instance, "uptime", "uptime", "client_uptime", val);
 464         }
 465
 466         if (conf->collect_vcl)
 467         {
 468                 if (strcmp(name, "n_vcl") == 0)
 469                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "total_vcl",     val);
 470                 else if (strcmp(name, "n_vcl_avail") == 0)
 471                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "avail_vcl",     val);
 472                 else if (strcmp(name, "n_vcl_discard") == 0)
 473                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "discarded_vcl", val);
 474                 else if (strcmp(name, "vmods") == 0)
 475                         return varnish_submit_gauge (conf->instance, "vcl", "objects", "vmod",      val);
 476         }
 477
 478         if (conf->collect_workers)
 479         {
 480                 if (strcmp(name, "threads") == 0)
 481                         return varnish_submit_gauge (conf->instance, "workers", "threads", "worker",               val);
 482                 else if (strcmp(name, "threads_created") == 0)
 483                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "created",       val);
 484                 else if (strcmp(name, "threads_failed") == 0)
 485                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",        val);
 486                 else if (strcmp(name, "threads_limited") == 0)
 487                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",       val);
 488                 else if (strcmp(name, "threads_destroyed") == 0)
 489                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",       val);
 490                 else if (strcmp(name, "thread_queue_len") == 0)
 491                         return varnish_submit_derive (conf->instance, "workers", "queue_length",  "threads",       val);
 492                 else if (strcmp(name, "n_wrk") == 0)
 493                         return varnish_submit_gauge (conf->instance, "workers", "threads", "worker",               val);
 494                 else if (strcmp(name, "n_wrk_create") == 0)
 495                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "created",       val);
 496                 else if (strcmp(name, "n_wrk_failed") == 0)
 497                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",        val);
 498                 else if (strcmp(name, "n_wrk_max") == 0)
 499                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",       val);
 500                 else if (strcmp(name, "n_wrk_drop") == 0)
 501                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",       val);
 502                 else if (strcmp(name, "n_wrk_queue") == 0)
 503                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",       val);
 504                 else if (strcmp(name, "n_wrk_overflow") == 0)
 505                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "overflowed",   val);
 506                 else if (strcmp(name, "n_wrk_queued") == 0)
 507                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",       val);
 508                 else if (strcmp(name, "n_wrk_lqueue") == 0)
 509                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queue_length", val);
 510         }
 511
 512 #if HAVE_VARNISH_V4
 513         if (conf->collect_vsm)
 514         {
 515                 if (strcmp(name, "vsm_free") == 0)
 516                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "free",              val);
 517                 else if (strcmp(name, "vsm_used") == 0)
 518                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "used",              val);
 519                 else if (strcmp(name, "vsm_cooling") == 0)
 520                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "cooling",           val);
 521                 else if (strcmp(name, "vsm_overflow") == 0)
 522                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "overflow",          val);
 523                 else if (strcmp(name, "vsm_overflowed") == 0)
 524                         return varnish_submit_derive (conf->instance, "vsm", "total_bytes", "overflowed", val);
 525         }
 526 #endif
 527
 528         return (0);
 529
 530 } /* }}} static int varnish_monitor */
 531 #else /* if HAVE_VARNISH_V2 */
 532 static void varnish_monitor (const user_config_t *conf, /* {{{ */
 533                 const c_varnish_stats_t *stats)
 534 {
 535         if (conf->collect_cache)
 536         {
 537                 /* Cache hits */
 538                 varnish_submit_derive (conf->instance, "cache", "cache_result", "hit",     stats->cache_hit);
 539                 /* Cache misses */
 540                 varnish_submit_derive (conf->instance, "cache", "cache_result", "miss",    stats->cache_miss);
 541                 /* Cache hits for pass */
 542                 varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", stats->cache_hitpass);
 543         }
 544
 545         if (conf->collect_connections)
 546         {
 547                 /* Client connections accepted */
 548                 varnish_submit_derive (conf->instance, "connections", "connections", "accepted", stats->client_conn);
 549                 /* Connection dropped, no sess */
 550                 varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , stats->client_drop);
 551                 /* Client requests received    */
 552                 varnish_submit_derive (conf->instance, "connections", "connections", "received", stats->client_req);
 553         }
 554
 555         if (conf->collect_esi)
 556         {
 557                 /* ESI parse errors (unlock)   */
 558                 varnish_submit_derive (conf->instance, "esi", "total_operations", "error",   stats->esi_errors);
 559                 /* Objects ESI parsed (unlock) */
 560                 varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed",  stats->esi_parse);
 561         }
 562
 563         if (conf->collect_backend)
 564         {
 565                 /* Backend conn. success       */
 566                 varnish_submit_derive (conf->instance, "backend", "connections", "success"      , stats->backend_conn);
 567                 /* Backend conn. not attempted */
 568                 varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", stats->backend_unhealthy);
 569                 /* Backend conn. too many      */
 570                 varnish_submit_derive (conf->instance, "backend", "connections", "too-many"     , stats->backend_busy);
 571                 /* Backend conn. failures      */
 572                 varnish_submit_derive (conf->instance, "backend", "connections", "failures"     , stats->backend_fail);
 573                 /* Backend conn. reuses        */
 574                 varnish_submit_derive (conf->instance, "backend", "connections", "reuses"       , stats->backend_reuse);
 575                 /* Backend conn. was closed    */
 576                 varnish_submit_derive (conf->instance, "backend", "connections", "was-closed"   , stats->backend_toolate);
 577                 /* Backend conn. recycles      */
 578                 varnish_submit_derive (conf->instance, "backend", "connections", "recycled"     , stats->backend_recycle);
 579                 /* Backend conn. unused        */
 580                 varnish_submit_derive (conf->instance, "backend", "connections", "unused"       , stats->backend_unused);
 581                 /* Backend requests mades      */
 582                 varnish_submit_derive (conf->instance, "backend", "http_requests", "requests"   , stats->backend_req);
 583                 /* N backends                  */
 584                 varnish_submit_gauge  (conf->instance, "backend", "backends", "n_backends"      , stats->n_backend);
 585         }
 586
 587         if (conf->collect_fetch)
 588         {
 589                 /* Fetch head                */
 590                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "head"       , stats->fetch_head);
 591                 /* Fetch with length         */
 592                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "length"     , stats->fetch_length);
 593                 /* Fetch chunked             */
 594                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked"    , stats->fetch_chunked);
 595                 /* Fetch EOF                 */
 596                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof"        , stats->fetch_eof);
 597                 /* Fetch bad headers         */
 598                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", stats->fetch_bad);
 599                 /* Fetch wanted close        */
 600                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "close"      , stats->fetch_close);
 601                 /* Fetch pre HTTP/1.1 closed */
 602                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp"    , stats->fetch_oldhttp);
 603                 /* Fetch zero len            */
 604                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero"       , stats->fetch_zero);
 605                 /* Fetch failed              */
 606                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed"     , stats->fetch_failed);
 607         }
 608
 609         if (conf->collect_hcb)
 610         {
 611                 /* HCB Lookups without lock */
 612                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", stats->hcb_nolock);
 613                 /* HCB Lookups with lock    */
 614                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock",   stats->hcb_lock);
 615                 /* HCB Inserts              */
 616                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert",        stats->hcb_insert);
 617         }
 618
 619         if (conf->collect_objects)
 620         {
 621                 /* N expired objects             */
 622                 varnish_submit_derive (conf->instance, "objects", "total_objects", "expired",            stats->n_expired);
 623                 /* N LRU nuked objects           */
 624                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_nuked",          stats->n_lru_nuked);
 625                 /* N LRU saved objects           */
 626                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_saved",          stats->n_lru_saved);
 627                 /* N LRU moved objects           */
 628                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_moved",          stats->n_lru_moved);
 629                 /* N objects on deathrow         */
 630                 varnish_submit_derive (conf->instance, "objects", "total_objects", "deathrow",           stats->n_deathrow);
 631                 /* HTTP header overflows         */
 632                 varnish_submit_derive (conf->instance, "objects", "total_objects", "header_overflow",    stats->losthdr);
 633                 /* Objects sent with sendfile    */
 634                 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_sendfile",      stats->n_objsendfile);
 635                 /* Objects sent with write       */
 636                 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_write",         stats->n_objwrite);
 637                 /* Objects overflowing workspace */
 638                 varnish_submit_derive (conf->instance, "objects", "total_objects", "workspace_overflow", stats->n_objoverflow);
 639         }
 640
 641         if (conf->collect_purge)
 642         {
 643                 /* N total active purges      */
 644                 varnish_submit_derive (conf->instance, "purge", "total_operations", "total",            stats->n_purge);
 645                 /* N new purges added         */
 646                 varnish_submit_derive (conf->instance, "purge", "total_operations", "added",            stats->n_purge_add);
 647                 /* N old purges deleted       */
 648                 varnish_submit_derive (conf->instance, "purge", "total_operations", "deleted",          stats->n_purge_retire);
 649                 /* N objects tested           */
 650                 varnish_submit_derive (conf->instance, "purge", "total_operations", "objects_tested",   stats->n_purge_obj_test);
 651                 /* N regexps tested against   */
 652                 varnish_submit_derive (conf->instance, "purge", "total_operations", "regexps_tested",   stats->n_purge_re_test);
 653                 /* N duplicate purges removed */
 654                 varnish_submit_derive (conf->instance, "purge", "total_operations", "duplicate",        stats->n_purge_dups);
 655         }
 656
 657         if (conf->collect_session)
 658         {
 659                 /* Session Closed     */
 660                 varnish_submit_derive (conf->instance, "session", "total_operations", "closed",    stats->sess_closed);
 661                 /* Session Pipeline   */
 662                 varnish_submit_derive (conf->instance, "session", "total_operations", "pipeline",  stats->sess_pipeline);
 663                 /* Session Read Ahead */
 664                 varnish_submit_derive (conf->instance, "session", "total_operations", "readahead", stats->sess_readahead);
 665                 /* Session Linger     */
 666                 varnish_submit_derive (conf->instance, "session", "total_operations", "linger",    stats->sess_linger);
 667                 /* Session herd       */
 668                 varnish_submit_derive (conf->instance, "session", "total_operations", "herd",      stats->sess_herd);
 669         }
 670
 671         if (conf->collect_shm)
 672         {
 673                 /* SHM records                 */
 674                 varnish_submit_derive (conf->instance, "shm", "total_operations", "records"   , stats->shm_records);
 675                 /* SHM writes                  */
 676                 varnish_submit_derive (conf->instance, "shm", "total_operations", "writes"    , stats->shm_writes);
 677                 /* SHM flushes due to overflow */
 678                 varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes"   , stats->shm_flushes);
 679                 /* SHM MTX contention          */
 680                 varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", stats->shm_cont);
 681                 /* SHM cycles through buffer   */
 682                 varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles"    , stats->shm_cycles);
 683         }
 684
 685         if (conf->collect_sm)
 686         {
 687                 /* allocator requests */
 688                 varnish_submit_derive (conf->instance, "sm", "total_requests", "nreq",         stats->sm_nreq);
 689                 /* outstanding allocations */
 690                 varnish_submit_gauge (conf->instance,  "sm", "requests", "outstanding",        stats->sm_nobj);
 691                 /* bytes allocated */
 692                 varnish_submit_derive (conf->instance,  "sm", "total_bytes", "allocated",      stats->sm_balloc);
 693                 /* bytes free */
 694                 varnish_submit_derive (conf->instance,  "sm", "total_bytes", "free",           stats->sm_bfree);
 695         }
 696
 697         if (conf->collect_sma)
 698         {
 699                 /* SMA allocator requests */
 700                 varnish_submit_derive (conf->instance, "sma", "total_requests", "nreq",    stats->sma_nreq);
 701                 /* SMA outstanding allocations */
 702                 varnish_submit_gauge (conf->instance,  "sma", "requests", "outstanding",   stats->sma_nobj);
 703                 /* SMA outstanding bytes */
 704                 varnish_submit_gauge (conf->instance,  "sma", "bytes", "outstanding",      stats->sma_nbytes);
 705                 /* SMA bytes allocated */
 706                 varnish_submit_derive (conf->instance,  "sma", "total_bytes", "allocated", stats->sma_balloc);
 707                 /* SMA bytes free */
 708                 varnish_submit_derive (conf->instance,  "sma", "total_bytes", "free" ,     stats->sma_bfree);
 709         }
 710
 711         if (conf->collect_sms)
 712         {
 713                 /* SMS allocator requests */
 714                 varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", stats->sms_nreq);
 715                 /* SMS outstanding allocations */
 716                 varnish_submit_gauge (conf->instance,  "sms", "requests", "outstanding",     stats->sms_nobj);
 717                 /* SMS outstanding bytes */
 718                 varnish_submit_gauge (conf->instance,  "sms", "bytes", "outstanding",        stats->sms_nbytes);
 719                 /* SMS bytes allocated */
 720                 varnish_submit_derive (conf->instance,  "sms", "total_bytes", "allocated",   stats->sms_balloc);
 721                 /* SMS bytes freed */
 722                 varnish_submit_derive (conf->instance,  "sms", "total_bytes", "free",        stats->sms_bfree);
 723         }
 724
 725         if (conf->collect_struct)
 726         {
 727                 /* N struct sess_mem       */
 728                 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess_mem",  stats->n_sess_mem);
 729                 /* N struct sess           */
 730                 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess",      stats->n_sess);
 731                 /* N struct object         */
 732                 varnish_submit_gauge (conf->instance, "struct", "objects", "object",             stats->n_object);
 733                 /* N struct objecthead     */
 734                 varnish_submit_gauge (conf->instance, "struct", "objects", "objecthead",         stats->n_objecthead);
 735                 /* N struct smf            */
 736                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf",                stats->n_smf);
 737                 /* N small free smf         */
 738                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_frag",           stats->n_smf_frag);
 739                 /* N large free smf         */
 740                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_large",          stats->n_smf_large);
 741                 /* N struct vbe_conn        */
 742                 varnish_submit_gauge (conf->instance, "struct", "objects", "vbe_conn",           stats->n_vbe_conn);
 743         }
 744
 745         if (conf->collect_totals)
 746         {
 747                 /* Total Sessions */
 748                 varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions",  stats->s_sess);
 749                 /* Total Requests */
 750                 varnish_submit_derive (conf->instance, "totals", "total_requests", "requests",  stats->s_req);
 751                 /* Total pipe */
 752                 varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe",    stats->s_pipe);
 753                 /* Total pass */
 754                 varnish_submit_derive (conf->instance, "totals", "total_operations", "pass",    stats->s_pass);
 755                 /* Total fetch */
 756                 varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", stats->s_fetch);
 757                 /* Total header bytes */
 758                 varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", stats->s_hdrbytes);
 759                 /* Total body byte */
 760                 varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes",   stats->s_bodybytes);
 761         }
 762
 763         if (conf->collect_vcl)
 764         {
 765                 /* N vcl total     */
 766                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "total_vcl",     stats->n_vcl);
 767                 /* N vcl available */
 768                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "avail_vcl",     stats->n_vcl_avail);
 769                 /* N vcl discarded */
 770                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "discarded_vcl", stats->n_vcl_discard);
 771         }
 772
 773         if (conf->collect_workers)
 774         {
 775                 /* worker threads */
 776                 varnish_submit_gauge (conf->instance, "workers", "threads", "worker",             stats->n_wrk);
 777                 /* worker threads created */
 778                 varnish_submit_derive (conf->instance, "workers", "total_threads", "created",     stats->n_wrk_create);
 779                 /* worker threads not created */
 780                 varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",      stats->n_wrk_failed);
 781                 /* worker threads limited */
 782                 varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",     stats->n_wrk_max);
 783                 /* dropped work requests */
 784                 varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",     stats->n_wrk_drop);
 785                 /* queued work requests */
 786                 varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",     stats->n_wrk_queue);
 787                 /* overflowed work requests */
 788                 varnish_submit_derive (conf->instance, "workers", "total_requests", "overflowed", stats->n_wrk_overflow);
 789         }
 790
 791 } /* }}} void varnish_monitor */
 792 #endif
 793
 794 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 795 static int varnish_read (user_data_t *ud) /* {{{ */
 796 {
 797         struct VSM_data *vd;
 798         const c_varnish_stats_t *stats;
 799
 800         user_config_t *conf;
 801
 802         if ((ud == NULL) || (ud->data == NULL))
 803                 return (EINVAL);
 804
 805         conf = ud->data;
 806
 807         vd = VSM_New();
 808 #if HAVE_VARNISH_V3
 809         VSC_Setup(vd);
 810 #endif
 811
 812         if (conf->instance != NULL)
 813         {
 814                 int status;
 815
 816                 status = VSM_n_Arg (vd, conf->instance);
 817                 if (status < 0)
 818                 {
 819                         VSM_Delete (vd);
 820                         ERROR ("varnish plugin: VSM_n_Arg (\"%s\") failed "
 821                                         "with status %i.",
 822                                         conf->instance, status);
 823                         return (-1);
 824                 }
 825         }
 826
 827 #if HAVE_VARNISH_V3
 828         if (VSC_Open (vd, /* diag = */ 1))
 829 #else /* if HAVE_VARNISH_V4 */
 830         if (VSM_Open (vd))
 831 #endif
 832         {
 833                 VSM_Delete (vd);
 834                 ERROR ("varnish plugin: Unable to open connection.");
 835
 836                 return (-1);
 837         }
 838
 839 #if HAVE_VARNISH_V3
 840         stats = VSC_Main(vd);
 841 #else /* if HAVE_VARNISH_V4 */
 842         stats = VSC_Main(vd, NULL);
 843 #endif
 844         if (!stats)
 845         {
 846                 VSM_Delete (vd);
 847                 ERROR ("varnish plugin: Unable to get statistics.");
 848
 849                 return (-1);
 850         }
 851
 852 #if HAVE_VARNISH_V3
 853         VSC_Iter (vd, varnish_monitor, conf);
 854 #else /* if HAVE_VARNISH_V4 */
 855         VSC_Iter (vd, NULL, varnish_monitor, conf);
 856 #endif
 857         VSM_Delete (vd);
 858
 859         return (0);
 860 } /* }}} */
 861 #else /* if HAVE_VARNISH_V2 */
 862 static int varnish_read (user_data_t *ud) /* {{{ */
 863 {
 864         const c_varnish_stats_t *stats;
 865
 866         user_config_t *conf;
 867
 868         if ((ud == NULL) || (ud->data == NULL))
 869                 return (EINVAL);
 870
 871         conf = ud->data;
 872
 873         stats = VSL_OpenStats (conf->instance);
 874         if (stats == NULL)
 875         {
 876                 ERROR ("Varnish plugin : unable to load statistics");
 877
 878                 return (-1);
 879         }
 880
 881         varnish_monitor (conf, stats);
 882
 883         return (0);
 884 } /* }}} */
 885 #endif
 886
 887 static void varnish_config_free (void *ptr) /* {{{ */
 888 {
 889         user_config_t *conf = ptr;
 890
 891         if (conf == NULL)
 892                 return;
 893
 894         sfree (conf->instance);
 895         sfree (conf);
 896 } /* }}} */
 897
 898 static int varnish_config_apply_default (user_config_t *conf) /* {{{ */
 899 {
 900         if (conf == NULL)
 901                 return (EINVAL);
 902
 903         conf->collect_backend     = 1;
 904         conf->collect_cache       = 1;
 905         conf->collect_connections = 1;
 906 #ifdef HAVE_VARNISH_V3
 907         conf->collect_dirdns      = 0;
 908 #endif
 909         conf->collect_esi         = 0;
 910         conf->collect_fetch       = 0;
 911         conf->collect_hcb         = 0;
 912         conf->collect_objects     = 0;
 913 #if HAVE_VARNISH_V2
 914         conf->collect_purge       = 0;
 915 #else
 916         conf->collect_ban         = 0;
 917 #endif
 918         conf->collect_session     = 0;
 919         conf->collect_shm         = 1;
 920 #if HAVE_VARNISH_V2
 921         conf->collect_sm          = 0;
 922         conf->collect_sma         = 0;
 923 #endif
 924         conf->collect_sms         = 0;
 925         conf->collect_struct      = 0;
 926         conf->collect_totals      = 0;
 927 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 928         conf->collect_uptime      = 0;
 929 #endif
 930         conf->collect_vcl         = 0;
 931         conf->collect_workers     = 0;
 932 #if HAVE_VARNISH_V4
 933         conf->collect_vsm         = 0;
 934 #endif
 935
 936         return (0);
 937 } /* }}} int varnish_config_apply_default */
 938
 939 static int varnish_init (void) /* {{{ */
 940 {
 941         user_config_t *conf;
 942         user_data_t ud;
 943
 944         if (have_instance)
 945                 return (0);
 946
 947         conf = malloc (sizeof (*conf));
 948         if (conf == NULL)
 949                 return (ENOMEM);
 950         memset (conf, 0, sizeof (*conf));
 951
 952         /* Default settings: */
 953         conf->instance = NULL;
 954
 955         varnish_config_apply_default (conf);
 956
 957         ud.data = conf;
 958         ud.free_func = varnish_config_free;
 959
 960         plugin_register_complex_read (/* group = */ "varnish",
 961                         /* name      = */ "varnish/localhost",
 962                         /* callback  = */ varnish_read,
 963                         /* interval  = */ NULL,
 964                         /* user data = */ &ud);
 965
 966         return (0);
 967 } /* }}} int varnish_init */
 968
 969 static int varnish_config_instance (const oconfig_item_t *ci) /* {{{ */
 970 {
 971         user_config_t *conf;
 972         user_data_t ud;
 973         char callback_name[DATA_MAX_NAME_LEN];
 974         int i;
 975
 976         conf = malloc (sizeof (*conf));
 977         if (conf == NULL)
 978                 return (ENOMEM);
 979         memset (conf, 0, sizeof (*conf));
 980         conf->instance = NULL;
 981
 982         varnish_config_apply_default (conf);
 983
 984         if (ci->values_num == 1)
 985         {
 986                 int status;
 987
 988                 status = cf_util_get_string (ci, &conf->instance);
 989                 if (status != 0)
 990                 {
 991                         sfree (conf);
 992                         return (status);
 993                 }
 994                 assert (conf->instance != NULL);
 995
 996                 if (strcmp ("localhost", conf->instance) == 0)
 997                 {
 998                         sfree (conf->instance);
 999                         conf->instance = NULL;
1000                 }
1001         }
1002         else if (ci->values_num > 1)
1003         {
1004                 WARNING ("Varnish plugin: \"Instance\" blocks accept only "
1005                                 "one argument.");
1006                 return (EINVAL);
1007         }
1008
1009         for (i = 0; i < ci->children_num; i++)
1010         {
1011                 oconfig_item_t *child = ci->children + i;
1012
1013                 if (strcasecmp ("CollectCache", child->key) == 0)
1014                         cf_util_get_boolean (child, &conf->collect_cache);
1015                 else if (strcasecmp ("CollectConnections", child->key) == 0)
1016                         cf_util_get_boolean (child, &conf->collect_connections);
1017                 else if (strcasecmp ("CollectESI", child->key) == 0)
1018                         cf_util_get_boolean (child, &conf->collect_esi);
1019 #ifdef HAVE_VARNISH_V3
1020                 else if (strcasecmp ("CollectDirectorDNS", child->key) == 0)
1021                         cf_util_get_boolean (child, &conf->collect_dirdns);
1022 #endif
1023                 else if (strcasecmp ("CollectBackend", child->key) == 0)
1024                         cf_util_get_boolean (child, &conf->collect_backend);
1025                 else if (strcasecmp ("CollectFetch", child->key) == 0)
1026                         cf_util_get_boolean (child, &conf->collect_fetch);
1027                 else if (strcasecmp ("CollectHCB", child->key) == 0)
1028                         cf_util_get_boolean (child, &conf->collect_hcb);
1029                 else if (strcasecmp ("CollectObjects", child->key) == 0)
1030                         cf_util_get_boolean (child, &conf->collect_objects);
1031 #if HAVE_VARNISH_V2
1032                 else if (strcasecmp ("CollectPurge", child->key) == 0)
1033                         cf_util_get_boolean (child, &conf->collect_purge);
1034 #else
1035                 else if (strcasecmp ("CollectBan", child->key) == 0)
1036                         cf_util_get_boolean (child, &conf->collect_ban);
1037 #endif
1038                 else if (strcasecmp ("CollectSession", child->key) == 0)
1039                         cf_util_get_boolean (child, &conf->collect_session);
1040                 else if (strcasecmp ("CollectSHM", child->key) == 0)
1041                         cf_util_get_boolean (child, &conf->collect_shm);
1042                 else if (strcasecmp ("CollectSMS", child->key) == 0)
1043                         cf_util_get_boolean (child, &conf->collect_sms);
1044 #if HAVE_VARNISH_V2
1045                 else if (strcasecmp ("CollectSMA", child->key) == 0)
1046                         cf_util_get_boolean (child, &conf->collect_sma);
1047                 else if (strcasecmp ("CollectSM", child->key) == 0)
1048                         cf_util_get_boolean (child, &conf->collect_sm);
1049 #endif
1050                 else if (strcasecmp ("CollectStruct", child->key) == 0)
1051                         cf_util_get_boolean (child, &conf->collect_struct);
1052                 else if (strcasecmp ("CollectTotals", child->key) == 0)
1053                         cf_util_get_boolean (child, &conf->collect_totals);
1054 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
1055                 else if (strcasecmp ("CollectUptime", child->key) == 0)
1056                         cf_util_get_boolean (child, &conf->collect_uptime);
1057 #endif
1058                 else if (strcasecmp ("CollectVCL", child->key) == 0)
1059                         cf_util_get_boolean (child, &conf->collect_vcl);
1060                 else if (strcasecmp ("CollectWorkers", child->key) == 0)
1061                         cf_util_get_boolean (child, &conf->collect_workers);
1062 #if HAVE_VARNISH_V4
1063                 else if (strcasecmp ("CollectVSM", child->key) == 0)
1064                         cf_util_get_boolean (child, &conf->collect_vsm);
1065 #endif
1066                 else
1067                 {
1068                         WARNING ("Varnish plugin: Ignoring unknown "
1069                                         "configuration option: \"%s\". Did "
1070                                         "you forget to add an <Instance /> "
1071                                         "block around the configuration?",
1072                                         child->key);
1073                 }
1074         }
1075
1076         if (!conf->collect_cache
1077                         && !conf->collect_connections
1078                         && !conf->collect_esi
1079                         && !conf->collect_backend
1080 #ifdef HAVE_VARNISH_V3
1081                         && !conf->collect_dirdns
1082 #endif
1083                         && !conf->collect_fetch
1084                         && !conf->collect_hcb
1085                         && !conf->collect_objects
1086 #if HAVE_VARNISH_V2
1087                         && !conf->collect_purge
1088 #else
1089                         && !conf->collect_ban
1090 #endif
1091                         && !conf->collect_session
1092                         && !conf->collect_shm
1093                         && !conf->collect_sms
1094 #if HAVE_VARNISH_V2
1095                         && !conf->collect_sma
1096                         && !conf->collect_sm
1097 #endif
1098                         && !conf->collect_struct
1099                         && !conf->collect_totals
1100 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
1101                         && !conf->collect_uptime
1102 #endif
1103                         && !conf->collect_vcl
1104                         && !conf->collect_workers
1105 #if HAVE_VARNISH_V4
1106                         && !conf->collect_vsm
1107 #endif
1108         )
1109         {
1110                 WARNING ("Varnish plugin: No metric has been configured for "
1111                                 "instance \"%s\". Disabling this instance.",
1112                                 (conf->instance == NULL) ? "localhost" : conf->instance);
1113                 return (EINVAL);
1114         }
1115
1116         ssnprintf (callback_name, sizeof (callback_name), "varnish/%s",
1117                         (conf->instance == NULL) ? "localhost" : conf->instance);
1118
1119         ud.data = conf;
1120         ud.free_func = varnish_config_free;
1121
1122         plugin_register_complex_read (/* group = */ "varnish",
1123                         /* name      = */ callback_name,
1124                         /* callback  = */ varnish_read,
1125                         /* interval  = */ NULL,
1126                         /* user data = */ &ud);
1127
1128         have_instance = 1;
1129
1130         return (0);
1131 } /* }}} int varnish_config_instance */
1132
1133 static int varnish_config (oconfig_item_t *ci) /* {{{ */
1134 {
1135         int i;
1136
1137         for (i = 0; i < ci->children_num; i++)
1138         {
1139                 oconfig_item_t *child = ci->children + i;
1140
1141                 if (strcasecmp ("Instance", child->key) == 0)
1142                         varnish_config_instance (child);
1143                 else
1144                 {
1145                         WARNING ("Varnish plugin: Ignoring unknown "
1146                                         "configuration option: \"%s\"",
1147                                         child->key);
1148                 }
1149         }
1150
1151         return (0);
1152 } /* }}} int varnish_config */
1153
1154 void module_register (void) /* {{{ */
1155 {
1156         plugin_register_complex_config ("varnish", varnish_config);
1157         plugin_register_init ("varnish", varnish_init);
1158 } /* }}} */
1159
1160 /* vim: set sw=8 noet fdm=marker : */