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
  28 #include "common.h"
  29 #include "plugin.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.plugin, "varnish", sizeof (vl.plugin));
  98
  99         if (plugin_instance == NULL)
 100                 plugin_instance = "default";
 101         ssnprintf (vl.plugin_instance, sizeof (vl.plugin_instance),
 102                 "%s-%s", plugin_instance, category);
 103
 104         sstrncpy (vl.type, type, sizeof (vl.type));
 105
 106         if (type_instance != NULL)
 107                 sstrncpy (vl.type_instance, type_instance,
 108                                 sizeof (vl.type_instance));
 109
 110         return (plugin_dispatch_values (&vl));
 111 } /* }}} int varnish_submit */
 112
 113 static int varnish_submit_gauge (const char *plugin_instance, /* {{{ */
 114                 const char *category, const char *type, const char *type_instance,
 115                 uint64_t gauge_value)
 116 {
 117         return (varnish_submit (plugin_instance, category, type, type_instance,
 118                                 (value_t) { .gauge = (gauge_t) gauge_value }));
 119 } /* }}} int varnish_submit_gauge */
 120
 121 static int varnish_submit_derive (const char *plugin_instance, /* {{{ */
 122                 const char *category, const char *type, const char *type_instance,
 123                 uint64_t derive_value)
 124 {
 125         return (varnish_submit (plugin_instance, category, type, type_instance,
 126                                 (value_t) { .derive = (derive_t) derive_value }));
 127 } /* }}} int varnish_submit_derive */
 128
 129 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 130 static int varnish_monitor (void *priv, const struct VSC_point * const pt) /* {{{ */
 131 {
 132         uint64_t val;
 133         const user_config_t *conf;
 134         const char *class;
 135         const char *name;
 136
 137         if (pt == NULL)
 138                 return (0);
 139
 140         conf = priv;
 141
 142 #if HAVE_VARNISH_V4
 143         class = pt->section->fantom->type;
 144         name  = pt->desc->name;
 145
 146         if (strcmp(class, "MAIN") != 0)
 147                 return (0);
 148
 149 #elif HAVE_VARNISH_V3
 150         class = pt->class;
 151         name  = pt->name;
 152
 153         if (strcmp(class, "") != 0)
 154                 return (0);
 155 #endif
 156
 157         val = *(const volatile uint64_t*) pt->ptr;
 158
 159         if (conf->collect_cache)
 160         {
 161                 if (strcmp(name, "cache_hit") == 0)
 162                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "hit",     val);
 163                 else if (strcmp(name, "cache_miss") == 0)
 164                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "miss",    val);
 165                 else if (strcmp(name, "cache_hitpass") == 0)
 166                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", val);
 167         }
 168
 169         if (conf->collect_connections)
 170         {
 171                 if (strcmp(name, "client_conn") == 0)
 172                         return varnish_submit_derive (conf->instance, "connections", "connections", "accepted", val);
 173                 else if (strcmp(name, "client_drop") == 0)
 174                         return varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , val);
 175                 else if (strcmp(name, "client_req") == 0)
 176                         return varnish_submit_derive (conf->instance, "connections", "connections", "received", val);
 177         }
 178
 179 #ifdef HAVE_VARNISH_V3
 180         if (conf->collect_dirdns)
 181         {
 182                 if (strcmp(name, "dir_dns_lookups") == 0)
 183                         return varnish_submit_derive (conf->instance, "dirdns", "cache_operation", "lookups",    val);
 184                 else if (strcmp(name, "dir_dns_failed") == 0)
 185                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "failed",     val);
 186                 else if (strcmp(name, "dir_dns_hit") == 0)
 187                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "hits",       val);
 188                 else if (strcmp(name, "dir_dns_cache_full") == 0)
 189                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "cache_full", val);
 190         }
 191 #endif
 192
 193         if (conf->collect_esi)
 194         {
 195                 if (strcmp(name, "esi_errors") == 0)
 196                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "error",   val);
 197                 else if (strcmp(name, "esi_parse") == 0)
 198                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed",  val);
 199                 else if (strcmp(name, "esi_warnings") == 0)
 200                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "warning", val);
 201         }
 202
 203         if (conf->collect_backend)
 204         {
 205                 if (strcmp(name, "backend_conn") == 0)
 206                         return varnish_submit_derive (conf->instance, "backend", "connections", "success",       val);
 207                 else if (strcmp(name, "backend_unhealthy") == 0)
 208                         return varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", val);
 209                 else if (strcmp(name, "backend_busy") == 0)
 210                         return varnish_submit_derive (conf->instance, "backend", "connections", "too-many",      val);
 211                 else if (strcmp(name, "backend_fail") == 0)
 212                         return varnish_submit_derive (conf->instance, "backend", "connections", "failures",      val);
 213                 else if (strcmp(name, "backend_reuse") == 0)
 214                         return varnish_submit_derive (conf->instance, "backend", "connections", "reuses",        val);
 215                 else if (strcmp(name, "backend_toolate") == 0)
 216                         return varnish_submit_derive (conf->instance, "backend", "connections", "was-closed",    val);
 217                 else if (strcmp(name, "backend_recycle") == 0)
 218                         return varnish_submit_derive (conf->instance, "backend", "connections", "recycled",      val);
 219                 else if (strcmp(name, "backend_unused") == 0)
 220                         return varnish_submit_derive (conf->instance, "backend", "connections", "unused",        val);
 221                 else if (strcmp(name, "backend_retry") == 0)
 222                         return varnish_submit_derive (conf->instance, "backend", "connections", "retries",       val);
 223                 else if (strcmp(name, "backend_req") == 0)
 224                         return varnish_submit_derive (conf->instance, "backend", "http_requests", "requests",    val);
 225                 else if (strcmp(name, "n_backend") == 0)
 226                         return varnish_submit_gauge  (conf->instance, "backend", "backends", "n_backends",       val);
 227         }
 228
 229         if (conf->collect_fetch)
 230         {
 231                 if (strcmp(name, "fetch_head") == 0)
 232                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "head",        val);
 233                 else if (strcmp(name, "fetch_length") == 0)
 234                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "length",      val);
 235                 else if (strcmp(name, "fetch_chunked") == 0)
 236                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked",     val);
 237                 else if (strcmp(name, "fetch_eof") == 0)
 238                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof",         val);
 239                 else if (strcmp(name, "fetch_bad") == 0)
 240                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", val);
 241                 else if (strcmp(name, "fetch_close") == 0)
 242                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "close",       val);
 243                 else if (strcmp(name, "fetch_oldhttp") == 0)
 244                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp",     val);
 245                 else if (strcmp(name, "fetch_zero") == 0)
 246                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero",        val);
 247                 else if (strcmp(name, "fetch_failed") == 0)
 248                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed",      val);
 249                 else if (strcmp(name, "fetch_1xx") == 0)
 250                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_1xx", val);
 251                 else if (strcmp(name, "fetch_204") == 0)
 252                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_204", val);
 253                 else if (strcmp(name, "fetch_304") == 0)
 254                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_304", val);
 255         }
 256
 257         if (conf->collect_hcb)
 258         {
 259                 if (strcmp(name, "hcb_nolock") == 0)
 260                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", val);
 261                 else if (strcmp(name, "hcb_lock") == 0)
 262                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock",   val);
 263                 else if (strcmp(name, "hcb_insert") == 0)
 264                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert",        val);
 265         }
 266
 267         if (conf->collect_objects)
 268         {
 269                 if (strcmp(name, "n_expired") == 0)
 270                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "expired",            val);
 271                 else if (strcmp(name, "n_lru_nuked") == 0)
 272                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_nuked",          val);
 273                 else if (strcmp(name, "n_lru_saved") == 0)
 274                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_saved",          val);
 275                 else if (strcmp(name, "n_lru_moved") == 0)
 276                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_moved",          val);
 277                 else if (strcmp(name, "n_deathrow") == 0)
 278                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "deathrow",           val);
 279                 else if (strcmp(name, "losthdr") == 0)
 280                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "header_overflow",    val);
 281                 else if (strcmp(name, "n_obj_purged") == 0)
 282                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "purged",             val);
 283                 else if (strcmp(name, "n_objsendfile") == 0)
 284                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_sendfile",      val);
 285                 else if (strcmp(name, "n_objwrite") == 0)
 286                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_write",         val);
 287                 else if (strcmp(name, "n_objoverflow") == 0)
 288                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "workspace_overflow", val);
 289         }
 290
 291 #if HAVE_VARNISH_V3
 292         if (conf->collect_ban)
 293         {
 294                 if (strcmp(name, "n_ban") == 0)
 295                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "total",          val);
 296                 else if (strcmp(name, "n_ban_add") == 0)
 297                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "added",          val);
 298                 else if (strcmp(name, "n_ban_retire") == 0)
 299                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted",        val);
 300                 else if (strcmp(name, "n_ban_obj_test") == 0)
 301                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "objects_tested", val);
 302                 else if (strcmp(name, "n_ban_re_test") == 0)
 303                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "regexps_tested", val);
 304                 else if (strcmp(name, "n_ban_dups") == 0)
 305                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate",      val);
 306         }
 307 #endif
 308 #if HAVE_VARNISH_V4
 309         if (conf->collect_ban)
 310         {
 311                 if (strcmp(name, "bans") == 0)
 312                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "total",     val);
 313                 else if (strcmp(name, "bans_added") == 0)
 314                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "added",     val);
 315                 else if (strcmp(name, "bans_obj") == 0)
 316                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "obj",       val);
 317                 else if (strcmp(name, "bans_req") == 0)
 318                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "req",       val);
 319                 else if (strcmp(name, "bans_completed") == 0)
 320                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "completed", val);
 321                 else if (strcmp(name, "bans_deleted") == 0)
 322                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted",   val);
 323                 else if (strcmp(name, "bans_tested") == 0)
 324                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "tested",    val);
 325                 else if (strcmp(name, "bans_dups") == 0)
 326                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate", val);
 327         }
 328 #endif
 329
 330         if (conf->collect_session)
 331         {
 332                 if (strcmp(name, "sess_closed") == 0)
 333                         return varnish_submit_derive (conf->instance, "session", "total_operations", "closed",    val);
 334                 else if (strcmp(name, "sess_pipeline") == 0)
 335                         return varnish_submit_derive (conf->instance, "session", "total_operations", "pipeline",  val);
 336                 else if (strcmp(name, "sess_readahead") == 0)
 337                         return varnish_submit_derive (conf->instance, "session", "total_operations", "readahead", val);
 338                 else if (strcmp(name, "sess_conn") == 0)
 339                         return varnish_submit_derive (conf->instance, "session", "total_operations", "accepted",  val);
 340                 else if (strcmp(name, "sess_drop") == 0)
 341                         return varnish_submit_derive (conf->instance, "session", "total_operations", "dropped",   val);
 342                 else if (strcmp(name, "sess_fail") == 0)
 343                         return varnish_submit_derive (conf->instance, "session", "total_operations", "failed",    val);
 344                 else if (strcmp(name, "sess_pipe_overflow") == 0)
 345                         return varnish_submit_derive (conf->instance, "session", "total_operations", "overflow",  val);
 346                 else if (strcmp(name, "sess_queued") == 0)
 347                         return varnish_submit_derive (conf->instance, "session", "total_operations", "queued",    val);
 348                 else if (strcmp(name, "sess_linger") == 0)
 349                         return varnish_submit_derive (conf->instance, "session", "total_operations", "linger",    val);
 350                 else if (strcmp(name, "sess_herd") == 0)
 351                         return varnish_submit_derive (conf->instance, "session", "total_operations", "herd",      val);
 352         }
 353
 354         if (conf->collect_shm)
 355         {
 356                 if (strcmp(name, "shm_records") == 0)
 357                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "records",    val);
 358                 else if (strcmp(name, "shm_writes") == 0)
 359                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "writes",     val);
 360                 else if (strcmp(name, "shm_flushes") == 0)
 361                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes",    val);
 362                 else if (strcmp(name, "shm_cont") == 0)
 363                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", val);
 364                 else if (strcmp(name, "shm_cycles") == 0)
 365                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles",     val);
 366         }
 367
 368         if (conf->collect_sms)
 369         {
 370                 if (strcmp(name, "sms_nreq") == 0)
 371                         return varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", val);
 372                 else if (strcmp(name, "sms_nobj") == 0)
 373                         return varnish_submit_gauge (conf->instance,  "sms", "requests", "outstanding",     val);
 374                 else if (strcmp(name, "sms_nbytes") == 0)
 375                         return varnish_submit_gauge (conf->instance,  "sms", "bytes", "outstanding",        val);
 376                 else if (strcmp(name, "sms_balloc") == 0)
 377                         return varnish_submit_derive (conf->instance,  "sms", "total_bytes", "allocated",   val);
 378                 else if (strcmp(name, "sms_bfree") == 0)
 379                         return varnish_submit_derive (conf->instance,  "sms", "total_bytes", "free",        val);
 380         }
 381
 382         if (conf->collect_struct)
 383         {
 384                 if (strcmp(name, "n_sess_mem") == 0)
 385                         return varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess_mem",  val);
 386                 else if (strcmp(name, "n_sess") == 0)
 387                         return varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess",      val);
 388                 else if (strcmp(name, "n_object") == 0)
 389                         return varnish_submit_gauge (conf->instance, "struct", "objects", "object",             val);
 390                 else if (strcmp(name, "n_vampireobject") == 0)
 391                         return varnish_submit_gauge (conf->instance, "struct", "objects", "vampireobject",      val);
 392                 else if (strcmp(name, "n_objectcore") == 0)
 393                         return varnish_submit_gauge (conf->instance, "struct", "objects", "objectcore",         val);
 394                 else if (strcmp(name, "n_waitinglist") == 0)
 395                         return varnish_submit_gauge (conf->instance, "struct", "objects", "waitinglist",        val);
 396                 else if (strcmp(name, "n_objecthead") == 0)
 397                         return varnish_submit_gauge (conf->instance, "struct", "objects", "objecthead",         val);
 398                 else if (strcmp(name, "n_smf") == 0)
 399                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf",                val);
 400                 else if (strcmp(name, "n_smf_frag") == 0)
 401                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf_frag",           val);
 402                 else if (strcmp(name, "n_smf_large") == 0)
 403                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf_large",          val);
 404                 else if (strcmp(name, "n_vbe_conn") == 0)
 405                         return varnish_submit_gauge (conf->instance, "struct", "objects", "vbe_conn",           val);
 406         }
 407
 408         if (conf->collect_totals)
 409         {
 410                 if (strcmp(name, "s_sess") == 0)
 411                         return varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions",  val);
 412                 else if (strcmp(name, "s_req") == 0)
 413                         return varnish_submit_derive (conf->instance, "totals", "total_requests", "requests",  val);
 414                 else if (strcmp(name, "s_pipe") == 0)
 415                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe",    val);
 416                 else if (strcmp(name, "s_pass") == 0)
 417                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "pass",    val);
 418                 else if (strcmp(name, "s_fetch") == 0)
 419                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", val);
 420                 else if (strcmp(name, "s_synth") == 0)
 421                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "synth",        val);
 422                 else if (strcmp(name, "s_req_hdrbytes") == 0)
 423                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_header",   val);
 424                 else if (strcmp(name, "s_req_bodybytes") == 0)
 425                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_body",     val);
 426                 else if (strcmp(name, "s_resp_hdrbytes") == 0)
 427                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_header",  val);
 428                 else if (strcmp(name, "s_resp_bodybytes") == 0)
 429                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_body",    val);
 430                 else if (strcmp(name, "s_pipe_hdrbytes") == 0)
 431                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_header",  val);
 432                 else if (strcmp(name, "s_pipe_in") == 0)
 433                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_in",      val);
 434                 else if (strcmp(name, "s_pipe_out") == 0)
 435                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_out",     val);
 436                 else if (strcmp(name, "n_purges") == 0)
 437                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "purges",  val);
 438                 else if (strcmp(name, "s_hdrbytes") == 0)
 439                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", val);
 440                 else if (strcmp(name, "s_bodybytes") == 0)
 441                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes",   val);
 442                 else if (strcmp(name, "n_gzip") == 0)
 443                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "gzip",    val);
 444                 else if (strcmp(name, "n_gunzip") == 0)
 445                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "gunzip",  val);
 446         }
 447
 448         if (conf->collect_uptime)
 449         {
 450                 if (strcmp(name, "uptime") == 0)
 451                         return varnish_submit_gauge (conf->instance, "uptime", "uptime", "client_uptime", val);
 452         }
 453
 454         if (conf->collect_vcl)
 455         {
 456                 if (strcmp(name, "n_vcl") == 0)
 457                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "total_vcl",     val);
 458                 else if (strcmp(name, "n_vcl_avail") == 0)
 459                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "avail_vcl",     val);
 460                 else if (strcmp(name, "n_vcl_discard") == 0)
 461                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "discarded_vcl", val);
 462                 else if (strcmp(name, "vmods") == 0)
 463                         return varnish_submit_gauge (conf->instance, "vcl", "objects", "vmod",      val);
 464         }
 465
 466         if (conf->collect_workers)
 467         {
 468                 if (strcmp(name, "threads") == 0)
 469                         return varnish_submit_gauge (conf->instance, "workers", "threads", "worker",               val);
 470                 else if (strcmp(name, "threads_created") == 0)
 471                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "created",       val);
 472                 else if (strcmp(name, "threads_failed") == 0)
 473                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",        val);
 474                 else if (strcmp(name, "threads_limited") == 0)
 475                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",       val);
 476                 else if (strcmp(name, "threads_destroyed") == 0)
 477                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",       val);
 478                 else if (strcmp(name, "thread_queue_len") == 0)
 479                         return varnish_submit_derive (conf->instance, "workers", "queue_length",  "threads",       val);
 480                 else if (strcmp(name, "n_wrk") == 0)
 481                         return varnish_submit_gauge (conf->instance, "workers", "threads", "worker",               val);
 482                 else if (strcmp(name, "n_wrk_create") == 0)
 483                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "created",       val);
 484                 else if (strcmp(name, "n_wrk_failed") == 0)
 485                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",        val);
 486                 else if (strcmp(name, "n_wrk_max") == 0)
 487                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",       val);
 488                 else if (strcmp(name, "n_wrk_drop") == 0)
 489                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",       val);
 490                 else if (strcmp(name, "n_wrk_queue") == 0)
 491                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",       val);
 492                 else if (strcmp(name, "n_wrk_overflow") == 0)
 493                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "overflowed",   val);
 494                 else if (strcmp(name, "n_wrk_queued") == 0)
 495                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",       val);
 496                 else if (strcmp(name, "n_wrk_lqueue") == 0)
 497                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queue_length", val);
 498         }
 499
 500 #if HAVE_VARNISH_V4
 501         if (conf->collect_vsm)
 502         {
 503                 if (strcmp(name, "vsm_free") == 0)
 504                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "free",              val);
 505                 else if (strcmp(name, "vsm_used") == 0)
 506                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "used",              val);
 507                 else if (strcmp(name, "vsm_cooling") == 0)
 508                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "cooling",           val);
 509                 else if (strcmp(name, "vsm_overflow") == 0)
 510                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "overflow",          val);
 511                 else if (strcmp(name, "vsm_overflowed") == 0)
 512                         return varnish_submit_derive (conf->instance, "vsm", "total_bytes", "overflowed", val);
 513         }
 514 #endif
 515
 516         return (0);
 517
 518 } /* }}} static int varnish_monitor */
 519 #else /* if HAVE_VARNISH_V2 */
 520 static void varnish_monitor (const user_config_t *conf, /* {{{ */
 521                 const c_varnish_stats_t *stats)
 522 {
 523         if (conf->collect_cache)
 524         {
 525                 /* Cache hits */
 526                 varnish_submit_derive (conf->instance, "cache", "cache_result", "hit",     stats->cache_hit);
 527                 /* Cache misses */
 528                 varnish_submit_derive (conf->instance, "cache", "cache_result", "miss",    stats->cache_miss);
 529                 /* Cache hits for pass */
 530                 varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", stats->cache_hitpass);
 531         }
 532
 533         if (conf->collect_connections)
 534         {
 535                 /* Client connections accepted */
 536                 varnish_submit_derive (conf->instance, "connections", "connections", "accepted", stats->client_conn);
 537                 /* Connection dropped, no sess */
 538                 varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , stats->client_drop);
 539                 /* Client requests received    */
 540                 varnish_submit_derive (conf->instance, "connections", "connections", "received", stats->client_req);
 541         }
 542
 543         if (conf->collect_esi)
 544         {
 545                 /* ESI parse errors (unlock)   */
 546                 varnish_submit_derive (conf->instance, "esi", "total_operations", "error",   stats->esi_errors);
 547                 /* Objects ESI parsed (unlock) */
 548                 varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed",  stats->esi_parse);
 549         }
 550
 551         if (conf->collect_backend)
 552         {
 553                 /* Backend conn. success       */
 554                 varnish_submit_derive (conf->instance, "backend", "connections", "success"      , stats->backend_conn);
 555                 /* Backend conn. not attempted */
 556                 varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", stats->backend_unhealthy);
 557                 /* Backend conn. too many      */
 558                 varnish_submit_derive (conf->instance, "backend", "connections", "too-many"     , stats->backend_busy);
 559                 /* Backend conn. failures      */
 560                 varnish_submit_derive (conf->instance, "backend", "connections", "failures"     , stats->backend_fail);
 561                 /* Backend conn. reuses        */
 562                 varnish_submit_derive (conf->instance, "backend", "connections", "reuses"       , stats->backend_reuse);
 563                 /* Backend conn. was closed    */
 564                 varnish_submit_derive (conf->instance, "backend", "connections", "was-closed"   , stats->backend_toolate);
 565                 /* Backend conn. recycles      */
 566                 varnish_submit_derive (conf->instance, "backend", "connections", "recycled"     , stats->backend_recycle);
 567                 /* Backend conn. unused        */
 568                 varnish_submit_derive (conf->instance, "backend", "connections", "unused"       , stats->backend_unused);
 569                 /* Backend requests mades      */
 570                 varnish_submit_derive (conf->instance, "backend", "http_requests", "requests"   , stats->backend_req);
 571                 /* N backends                  */
 572                 varnish_submit_gauge  (conf->instance, "backend", "backends", "n_backends"      , stats->n_backend);
 573         }
 574
 575         if (conf->collect_fetch)
 576         {
 577                 /* Fetch head                */
 578                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "head"       , stats->fetch_head);
 579                 /* Fetch with length         */
 580                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "length"     , stats->fetch_length);
 581                 /* Fetch chunked             */
 582                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked"    , stats->fetch_chunked);
 583                 /* Fetch EOF                 */
 584                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof"        , stats->fetch_eof);
 585                 /* Fetch bad headers         */
 586                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", stats->fetch_bad);
 587                 /* Fetch wanted close        */
 588                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "close"      , stats->fetch_close);
 589                 /* Fetch pre HTTP/1.1 closed */
 590                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp"    , stats->fetch_oldhttp);
 591                 /* Fetch zero len            */
 592                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero"       , stats->fetch_zero);
 593                 /* Fetch failed              */
 594                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed"     , stats->fetch_failed);
 595         }
 596
 597         if (conf->collect_hcb)
 598         {
 599                 /* HCB Lookups without lock */
 600                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", stats->hcb_nolock);
 601                 /* HCB Lookups with lock    */
 602                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock",   stats->hcb_lock);
 603                 /* HCB Inserts              */
 604                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert",        stats->hcb_insert);
 605         }
 606
 607         if (conf->collect_objects)
 608         {
 609                 /* N expired objects             */
 610                 varnish_submit_derive (conf->instance, "objects", "total_objects", "expired",            stats->n_expired);
 611                 /* N LRU nuked objects           */
 612                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_nuked",          stats->n_lru_nuked);
 613                 /* N LRU saved objects           */
 614                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_saved",          stats->n_lru_saved);
 615                 /* N LRU moved objects           */
 616                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_moved",          stats->n_lru_moved);
 617                 /* N objects on deathrow         */
 618                 varnish_submit_derive (conf->instance, "objects", "total_objects", "deathrow",           stats->n_deathrow);
 619                 /* HTTP header overflows         */
 620                 varnish_submit_derive (conf->instance, "objects", "total_objects", "header_overflow",    stats->losthdr);
 621                 /* Objects sent with sendfile    */
 622                 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_sendfile",      stats->n_objsendfile);
 623                 /* Objects sent with write       */
 624                 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_write",         stats->n_objwrite);
 625                 /* Objects overflowing workspace */
 626                 varnish_submit_derive (conf->instance, "objects", "total_objects", "workspace_overflow", stats->n_objoverflow);
 627         }
 628
 629         if (conf->collect_purge)
 630         {
 631                 /* N total active purges      */
 632                 varnish_submit_derive (conf->instance, "purge", "total_operations", "total",            stats->n_purge);
 633                 /* N new purges added         */
 634                 varnish_submit_derive (conf->instance, "purge", "total_operations", "added",            stats->n_purge_add);
 635                 /* N old purges deleted       */
 636                 varnish_submit_derive (conf->instance, "purge", "total_operations", "deleted",          stats->n_purge_retire);
 637                 /* N objects tested           */
 638                 varnish_submit_derive (conf->instance, "purge", "total_operations", "objects_tested",   stats->n_purge_obj_test);
 639                 /* N regexps tested against   */
 640                 varnish_submit_derive (conf->instance, "purge", "total_operations", "regexps_tested",   stats->n_purge_re_test);
 641                 /* N duplicate purges removed */
 642                 varnish_submit_derive (conf->instance, "purge", "total_operations", "duplicate",        stats->n_purge_dups);
 643         }
 644
 645         if (conf->collect_session)
 646         {
 647                 /* Session Closed     */
 648                 varnish_submit_derive (conf->instance, "session", "total_operations", "closed",    stats->sess_closed);
 649                 /* Session Pipeline   */
 650                 varnish_submit_derive (conf->instance, "session", "total_operations", "pipeline",  stats->sess_pipeline);
 651                 /* Session Read Ahead */
 652                 varnish_submit_derive (conf->instance, "session", "total_operations", "readahead", stats->sess_readahead);
 653                 /* Session Linger     */
 654                 varnish_submit_derive (conf->instance, "session", "total_operations", "linger",    stats->sess_linger);
 655                 /* Session herd       */
 656                 varnish_submit_derive (conf->instance, "session", "total_operations", "herd",      stats->sess_herd);
 657         }
 658
 659         if (conf->collect_shm)
 660         {
 661                 /* SHM records                 */
 662                 varnish_submit_derive (conf->instance, "shm", "total_operations", "records"   , stats->shm_records);
 663                 /* SHM writes                  */
 664                 varnish_submit_derive (conf->instance, "shm", "total_operations", "writes"    , stats->shm_writes);
 665                 /* SHM flushes due to overflow */
 666                 varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes"   , stats->shm_flushes);
 667                 /* SHM MTX contention          */
 668                 varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", stats->shm_cont);
 669                 /* SHM cycles through buffer   */
 670                 varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles"    , stats->shm_cycles);
 671         }
 672
 673         if (conf->collect_sm)
 674         {
 675                 /* allocator requests */
 676                 varnish_submit_derive (conf->instance, "sm", "total_requests", "nreq",         stats->sm_nreq);
 677                 /* outstanding allocations */
 678                 varnish_submit_gauge (conf->instance,  "sm", "requests", "outstanding",        stats->sm_nobj);
 679                 /* bytes allocated */
 680                 varnish_submit_derive (conf->instance,  "sm", "total_bytes", "allocated",      stats->sm_balloc);
 681                 /* bytes free */
 682                 varnish_submit_derive (conf->instance,  "sm", "total_bytes", "free",           stats->sm_bfree);
 683         }
 684
 685         if (conf->collect_sma)
 686         {
 687                 /* SMA allocator requests */
 688                 varnish_submit_derive (conf->instance, "sma", "total_requests", "nreq",    stats->sma_nreq);
 689                 /* SMA outstanding allocations */
 690                 varnish_submit_gauge (conf->instance,  "sma", "requests", "outstanding",   stats->sma_nobj);
 691                 /* SMA outstanding bytes */
 692                 varnish_submit_gauge (conf->instance,  "sma", "bytes", "outstanding",      stats->sma_nbytes);
 693                 /* SMA bytes allocated */
 694                 varnish_submit_derive (conf->instance,  "sma", "total_bytes", "allocated", stats->sma_balloc);
 695                 /* SMA bytes free */
 696                 varnish_submit_derive (conf->instance,  "sma", "total_bytes", "free" ,     stats->sma_bfree);
 697         }
 698
 699         if (conf->collect_sms)
 700         {
 701                 /* SMS allocator requests */
 702                 varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", stats->sms_nreq);
 703                 /* SMS outstanding allocations */
 704                 varnish_submit_gauge (conf->instance,  "sms", "requests", "outstanding",     stats->sms_nobj);
 705                 /* SMS outstanding bytes */
 706                 varnish_submit_gauge (conf->instance,  "sms", "bytes", "outstanding",        stats->sms_nbytes);
 707                 /* SMS bytes allocated */
 708                 varnish_submit_derive (conf->instance,  "sms", "total_bytes", "allocated",   stats->sms_balloc);
 709                 /* SMS bytes freed */
 710                 varnish_submit_derive (conf->instance,  "sms", "total_bytes", "free",        stats->sms_bfree);
 711         }
 712
 713         if (conf->collect_struct)
 714         {
 715                 /* N struct sess_mem       */
 716                 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess_mem",  stats->n_sess_mem);
 717                 /* N struct sess           */
 718                 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess",      stats->n_sess);
 719                 /* N struct object         */
 720                 varnish_submit_gauge (conf->instance, "struct", "objects", "object",             stats->n_object);
 721                 /* N struct objecthead     */
 722                 varnish_submit_gauge (conf->instance, "struct", "objects", "objecthead",         stats->n_objecthead);
 723                 /* N struct smf            */
 724                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf",                stats->n_smf);
 725                 /* N small free smf         */
 726                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_frag",           stats->n_smf_frag);
 727                 /* N large free smf         */
 728                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_large",          stats->n_smf_large);
 729                 /* N struct vbe_conn        */
 730                 varnish_submit_gauge (conf->instance, "struct", "objects", "vbe_conn",           stats->n_vbe_conn);
 731         }
 732
 733         if (conf->collect_totals)
 734         {
 735                 /* Total Sessions */
 736                 varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions",  stats->s_sess);
 737                 /* Total Requests */
 738                 varnish_submit_derive (conf->instance, "totals", "total_requests", "requests",  stats->s_req);
 739                 /* Total pipe */
 740                 varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe",    stats->s_pipe);
 741                 /* Total pass */
 742                 varnish_submit_derive (conf->instance, "totals", "total_operations", "pass",    stats->s_pass);
 743                 /* Total fetch */
 744                 varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", stats->s_fetch);
 745                 /* Total header bytes */
 746                 varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", stats->s_hdrbytes);
 747                 /* Total body byte */
 748                 varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes",   stats->s_bodybytes);
 749         }
 750
 751         if (conf->collect_vcl)
 752         {
 753                 /* N vcl total     */
 754                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "total_vcl",     stats->n_vcl);
 755                 /* N vcl available */
 756                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "avail_vcl",     stats->n_vcl_avail);
 757                 /* N vcl discarded */
 758                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "discarded_vcl", stats->n_vcl_discard);
 759         }
 760
 761         if (conf->collect_workers)
 762         {
 763                 /* worker threads */
 764                 varnish_submit_gauge (conf->instance, "workers", "threads", "worker",             stats->n_wrk);
 765                 /* worker threads created */
 766                 varnish_submit_derive (conf->instance, "workers", "total_threads", "created",     stats->n_wrk_create);
 767                 /* worker threads not created */
 768                 varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",      stats->n_wrk_failed);
 769                 /* worker threads limited */
 770                 varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",     stats->n_wrk_max);
 771                 /* dropped work requests */
 772                 varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",     stats->n_wrk_drop);
 773                 /* queued work requests */
 774                 varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",     stats->n_wrk_queue);
 775                 /* overflowed work requests */
 776                 varnish_submit_derive (conf->instance, "workers", "total_requests", "overflowed", stats->n_wrk_overflow);
 777         }
 778
 779 } /* }}} void varnish_monitor */
 780 #endif
 781
 782 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 783 static int varnish_read (user_data_t *ud) /* {{{ */
 784 {
 785         struct VSM_data *vd;
 786         const c_varnish_stats_t *stats;
 787         _Bool ok;
 788
 789         user_config_t *conf;
 790
 791         if ((ud == NULL) || (ud->data == NULL))
 792                 return (EINVAL);
 793
 794         conf = ud->data;
 795
 796         vd = VSM_New();
 797 #if HAVE_VARNISH_V3
 798         VSC_Setup(vd);
 799 #endif
 800
 801         if (conf->instance != NULL)
 802         {
 803                 int status;
 804
 805                 status = VSM_n_Arg (vd, conf->instance);
 806                 if (status < 0)
 807                 {
 808                         VSM_Delete (vd);
 809                         ERROR ("varnish plugin: VSM_n_Arg (\"%s\") failed "
 810                                         "with status %i.",
 811                                         conf->instance, status);
 812                         return (-1);
 813                 }
 814         }
 815
 816 #if HAVE_VARNISH_V3
 817         ok = (VSC_Open (vd, /* diag = */ 1) == 0);
 818 #else /* if HAVE_VARNISH_V4 */
 819         ok = (VSM_Open (vd) == 0);
 820 #endif
 821         if (!ok)
 822         {
 823                 VSM_Delete (vd);
 824                 ERROR ("varnish plugin: Unable to open connection.");
 825
 826                 return (-1);
 827         }
 828
 829 #if HAVE_VARNISH_V3
 830         stats = VSC_Main(vd);
 831 #else /* if HAVE_VARNISH_V4 */
 832         stats = VSC_Main(vd, NULL);
 833 #endif
 834         if (!stats)
 835         {
 836                 VSM_Delete (vd);
 837                 ERROR ("varnish plugin: Unable to get statistics.");
 838
 839                 return (-1);
 840         }
 841
 842 #if HAVE_VARNISH_V3
 843         VSC_Iter (vd, varnish_monitor, conf);
 844 #else /* if HAVE_VARNISH_V4 */
 845         VSC_Iter (vd, NULL, varnish_monitor, conf);
 846 #endif
 847         VSM_Delete (vd);
 848
 849         return (0);
 850 } /* }}} */
 851 #else /* if HAVE_VARNISH_V2 */
 852 static int varnish_read (user_data_t *ud) /* {{{ */
 853 {
 854         const c_varnish_stats_t *stats;
 855
 856         user_config_t *conf;
 857
 858         if ((ud == NULL) || (ud->data == NULL))
 859                 return (EINVAL);
 860
 861         conf = ud->data;
 862
 863         stats = VSL_OpenStats (conf->instance);
 864         if (stats == NULL)
 865         {
 866                 ERROR ("Varnish plugin : unable to load statistics");
 867
 868                 return (-1);
 869         }
 870
 871         varnish_monitor (conf, stats);
 872
 873         return (0);
 874 } /* }}} */
 875 #endif
 876
 877 static void varnish_config_free (void *ptr) /* {{{ */
 878 {
 879         user_config_t *conf = ptr;
 880
 881         if (conf == NULL)
 882                 return;
 883
 884         sfree (conf->instance);
 885         sfree (conf);
 886 } /* }}} */
 887
 888 static int varnish_config_apply_default (user_config_t *conf) /* {{{ */
 889 {
 890         if (conf == NULL)
 891                 return (EINVAL);
 892
 893         conf->collect_backend     = 1;
 894         conf->collect_cache       = 1;
 895         conf->collect_connections = 1;
 896 #ifdef HAVE_VARNISH_V3
 897         conf->collect_dirdns      = 0;
 898 #endif
 899         conf->collect_esi         = 0;
 900         conf->collect_fetch       = 0;
 901         conf->collect_hcb         = 0;
 902         conf->collect_objects     = 0;
 903 #if HAVE_VARNISH_V2
 904         conf->collect_purge       = 0;
 905 #else
 906         conf->collect_ban         = 0;
 907 #endif
 908         conf->collect_session     = 0;
 909         conf->collect_shm         = 1;
 910 #if HAVE_VARNISH_V2
 911         conf->collect_sm          = 0;
 912         conf->collect_sma         = 0;
 913 #endif
 914         conf->collect_sms         = 0;
 915         conf->collect_struct      = 0;
 916         conf->collect_totals      = 0;
 917 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 918         conf->collect_uptime      = 0;
 919 #endif
 920         conf->collect_vcl         = 0;
 921         conf->collect_workers     = 0;
 922 #if HAVE_VARNISH_V4
 923         conf->collect_vsm         = 0;
 924 #endif
 925
 926         return (0);
 927 } /* }}} int varnish_config_apply_default */
 928
 929 static int varnish_init (void) /* {{{ */
 930 {
 931         user_config_t *conf;
 932
 933         if (have_instance)
 934                 return (0);
 935
 936         conf = calloc (1, sizeof (*conf));
 937         if (conf == NULL)
 938                 return (ENOMEM);
 939
 940         /* Default settings: */
 941         conf->instance = NULL;
 942
 943         varnish_config_apply_default (conf);
 944
 945         plugin_register_complex_read (/* group = */ "varnish",
 946                         /* name      = */ "varnish/localhost",
 947                         /* callback  = */ varnish_read,
 948                         /* interval  = */ 0,
 949                         &(user_data_t) {
 950                                 .data = conf,
 951                                 .free_func = varnish_config_free,
 952                         });
 953
 954         return (0);
 955 } /* }}} int varnish_init */
 956
 957 static int varnish_config_instance (const oconfig_item_t *ci) /* {{{ */
 958 {
 959         user_config_t *conf;
 960         char callback_name[DATA_MAX_NAME_LEN];
 961
 962         conf = calloc (1, sizeof (*conf));
 963         if (conf == NULL)
 964                 return (ENOMEM);
 965         conf->instance = NULL;
 966
 967         varnish_config_apply_default (conf);
 968
 969         if (ci->values_num == 1)
 970         {
 971                 int status;
 972
 973                 status = cf_util_get_string (ci, &conf->instance);
 974                 if (status != 0)
 975                 {
 976                         sfree (conf);
 977                         return (status);
 978                 }
 979                 assert (conf->instance != NULL);
 980
 981                 if (strcmp ("localhost", conf->instance) == 0)
 982                 {
 983                         sfree (conf->instance);
 984                         conf->instance = NULL;
 985                 }
 986         }
 987         else if (ci->values_num > 1)
 988         {
 989                 WARNING ("Varnish plugin: \"Instance\" blocks accept only "
 990                                 "one argument.");
 991                 sfree (conf);
 992                 return (EINVAL);
 993         }
 994
 995         for (int i = 0; i < ci->children_num; i++)
 996         {
 997                 oconfig_item_t *child = ci->children + i;
 998
 999                 if (strcasecmp ("CollectCache", child->key) == 0)
1000                         cf_util_get_boolean (child, &conf->collect_cache);
1001                 else if (strcasecmp ("CollectConnections", child->key) == 0)
1002                         cf_util_get_boolean (child, &conf->collect_connections);
1003                 else if (strcasecmp ("CollectESI", child->key) == 0)
1004                         cf_util_get_boolean (child, &conf->collect_esi);
1005                 else if (strcasecmp ("CollectDirectorDNS", child->key) == 0)
1006 #ifdef HAVE_VARNISH_V3
1007                         cf_util_get_boolean (child, &conf->collect_dirdns);
1008 #else
1009                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v3");
1010 #endif
1011                 else if (strcasecmp ("CollectBackend", child->key) == 0)
1012                         cf_util_get_boolean (child, &conf->collect_backend);
1013                 else if (strcasecmp ("CollectFetch", child->key) == 0)
1014                         cf_util_get_boolean (child, &conf->collect_fetch);
1015                 else if (strcasecmp ("CollectHCB", child->key) == 0)
1016                         cf_util_get_boolean (child, &conf->collect_hcb);
1017                 else if (strcasecmp ("CollectObjects", child->key) == 0)
1018                         cf_util_get_boolean (child, &conf->collect_objects);
1019                 else if (strcasecmp ("CollectPurge", child->key) == 0)
1020 #if HAVE_VARNISH_V2
1021                         cf_util_get_boolean (child, &conf->collect_purge);
1022 #else
1023                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v2");
1024 #endif
1025                 else if (strcasecmp ("CollectBan", child->key) == 0)
1026 #if HAVE_VARNISH_V2
1027                         WARNING ("Varnish plugin: \"%s\" is not available for Varnish %s.", child->key, "v2");
1028 #else
1029                         cf_util_get_boolean (child, &conf->collect_ban);
1030 #endif
1031                 else if (strcasecmp ("CollectSession", child->key) == 0)
1032                         cf_util_get_boolean (child, &conf->collect_session);
1033                 else if (strcasecmp ("CollectSHM", child->key) == 0)
1034                         cf_util_get_boolean (child, &conf->collect_shm);
1035                 else if (strcasecmp ("CollectSMS", child->key) == 0)
1036                         cf_util_get_boolean (child, &conf->collect_sms);
1037                 else if (strcasecmp ("CollectSMA", child->key) == 0)
1038 #if HAVE_VARNISH_V2
1039                         cf_util_get_boolean (child, &conf->collect_sma);
1040 #else
1041                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v2");
1042 #endif
1043                 else if (strcasecmp ("CollectSM", child->key) == 0)
1044 #if HAVE_VARNISH_V2
1045                         cf_util_get_boolean (child, &conf->collect_sm);
1046 #else
1047                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v2");
1048 #endif
1049                 else if (strcasecmp ("CollectStruct", child->key) == 0)
1050                         cf_util_get_boolean (child, &conf->collect_struct);
1051                 else if (strcasecmp ("CollectTotals", child->key) == 0)
1052                         cf_util_get_boolean (child, &conf->collect_totals);
1053                 else if (strcasecmp ("CollectUptime", child->key) == 0)
1054 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
1055                         cf_util_get_boolean (child, &conf->collect_uptime);
1056 #else
1057                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v3 and v4");
1058 #endif
1059                 else if (strcasecmp ("CollectVCL", child->key) == 0)
1060                         cf_util_get_boolean (child, &conf->collect_vcl);
1061                 else if (strcasecmp ("CollectWorkers", child->key) == 0)
1062                         cf_util_get_boolean (child, &conf->collect_workers);
1063                 else if (strcasecmp ("CollectVSM", child->key) == 0)
1064 #if HAVE_VARNISH_V4
1065                         cf_util_get_boolean (child, &conf->collect_vsm);
1066 #else
1067                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v4");
1068 #endif
1069                 else
1070                 {
1071                         WARNING ("Varnish plugin: Ignoring unknown "
1072                                         "configuration option: \"%s\". Did "
1073                                         "you forget to add an <Instance /> "
1074                                         "block around the configuration?",
1075                                         child->key);
1076                 }
1077         }
1078
1079         if (!conf->collect_cache
1080                         && !conf->collect_connections
1081                         && !conf->collect_esi
1082                         && !conf->collect_backend
1083 #ifdef HAVE_VARNISH_V3
1084                         && !conf->collect_dirdns
1085 #endif
1086                         && !conf->collect_fetch
1087                         && !conf->collect_hcb
1088                         && !conf->collect_objects
1089 #if HAVE_VARNISH_V2
1090                         && !conf->collect_purge
1091 #else
1092                         && !conf->collect_ban
1093 #endif
1094                         && !conf->collect_session
1095                         && !conf->collect_shm
1096                         && !conf->collect_sms
1097 #if HAVE_VARNISH_V2
1098                         && !conf->collect_sma
1099                         && !conf->collect_sm
1100 #endif
1101                         && !conf->collect_struct
1102                         && !conf->collect_totals
1103 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
1104                         && !conf->collect_uptime
1105 #endif
1106                         && !conf->collect_vcl
1107                         && !conf->collect_workers
1108 #if HAVE_VARNISH_V4
1109                         && !conf->collect_vsm
1110 #endif
1111         )
1112         {
1113                 WARNING ("Varnish plugin: No metric has been configured for "
1114                                 "instance \"%s\". Disabling this instance.",
1115                                 (conf->instance == NULL) ? "localhost" : conf->instance);
1116                 sfree (conf);
1117                 return (EINVAL);
1118         }
1119
1120         ssnprintf (callback_name, sizeof (callback_name), "varnish/%s",
1121                         (conf->instance == NULL) ? "localhost" : conf->instance);
1122
1123         plugin_register_complex_read (/* group = */ "varnish",
1124                         /* name      = */ callback_name,
1125                         /* callback  = */ varnish_read,
1126                         /* interval  = */ 0,
1127                         &(user_data_t) {
1128                                 .data = conf,
1129                                 .free_func = varnish_config_free,
1130                         });
1131
1132         have_instance = 1;
1133
1134         return (0);
1135 } /* }}} int varnish_config_instance */
1136
1137 static int varnish_config (oconfig_item_t *ci) /* {{{ */
1138 {
1139         for (int i = 0; i < ci->children_num; i++)
1140         {
1141                 oconfig_item_t *child = ci->children + i;
1142
1143                 if (strcasecmp ("Instance", child->key) == 0)
1144                         varnish_config_instance (child);
1145                 else
1146                 {
1147                         WARNING ("Varnish plugin: Ignoring unknown "
1148                                         "configuration option: \"%s\"",
1149                                         child->key);
1150                 }
1151         }
1152
1153         return (0);
1154 } /* }}} int varnish_config */
1155
1156 void module_register (void) /* {{{ */
1157 {
1158         plugin_register_complex_config ("varnish", varnish_config);
1159         plugin_register_init ("varnish", varnish_init);
1160 } /* }}} */
1161
1162 /* vim: set sw=8 noet fdm=marker : */