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.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 *name;
 145
 146         if (pt == NULL)
 147                 return (0);
 148
 149         conf = priv;
 150
 151 #if HAVE_VARNISH_V4
 152         class = pt->section->fantom->type;
 153         name  = pt->desc->name;
 154
 155         if (strcmp(class, "MAIN") != 0)
 156                 return (0);
 157
 158 #elif HAVE_VARNISH_V3
 159         class = pt->class;
 160         name  = pt->name;
 161
 162         if (strcmp(class, "") != 0)
 163                 return (0);
 164 #endif
 165
 166         val = *(const volatile uint64_t*) pt->ptr;
 167
 168         if (conf->collect_cache)
 169         {
 170                 if (strcmp(name, "cache_hit") == 0)
 171                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "hit",     val);
 172                 else if (strcmp(name, "cache_miss") == 0)
 173                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "miss",    val);
 174                 else if (strcmp(name, "cache_hitpass") == 0)
 175                         return varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", val);
 176         }
 177
 178         if (conf->collect_connections)
 179         {
 180                 if (strcmp(name, "client_conn") == 0)
 181                         return varnish_submit_derive (conf->instance, "connections", "connections", "accepted", val);
 182                 else if (strcmp(name, "client_drop") == 0)
 183                         return varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , val);
 184                 else if (strcmp(name, "client_req") == 0)
 185                         return varnish_submit_derive (conf->instance, "connections", "connections", "received", val);
 186         }
 187
 188 #ifdef HAVE_VARNISH_V3
 189         if (conf->collect_dirdns)
 190         {
 191                 if (strcmp(name, "dir_dns_lookups") == 0)
 192                         return varnish_submit_derive (conf->instance, "dirdns", "cache_operation", "lookups",    val);
 193                 else if (strcmp(name, "dir_dns_failed") == 0)
 194                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "failed",     val);
 195                 else if (strcmp(name, "dir_dns_hit") == 0)
 196                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "hits",       val);
 197                 else if (strcmp(name, "dir_dns_cache_full") == 0)
 198                         return varnish_submit_derive (conf->instance, "dirdns", "cache_result",    "cache_full", val);
 199         }
 200 #endif
 201
 202         if (conf->collect_esi)
 203         {
 204                 if (strcmp(name, "esi_errors") == 0)
 205                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "error",   val);
 206                 else if (strcmp(name, "esi_parse") == 0)
 207                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed",  val);
 208                 else if (strcmp(name, "esi_warnings") == 0)
 209                         return varnish_submit_derive (conf->instance, "esi", "total_operations", "warning", val);
 210         }
 211
 212         if (conf->collect_backend)
 213         {
 214                 if (strcmp(name, "backend_conn") == 0)
 215                         return varnish_submit_derive (conf->instance, "backend", "connections", "success",       val);
 216                 else if (strcmp(name, "backend_unhealthy") == 0)
 217                         return varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", val);
 218                 else if (strcmp(name, "backend_busy") == 0)
 219                         return varnish_submit_derive (conf->instance, "backend", "connections", "too-many",      val);
 220                 else if (strcmp(name, "backend_fail") == 0)
 221                         return varnish_submit_derive (conf->instance, "backend", "connections", "failures",      val);
 222                 else if (strcmp(name, "backend_reuse") == 0)
 223                         return varnish_submit_derive (conf->instance, "backend", "connections", "reuses",        val);
 224                 else if (strcmp(name, "backend_toolate") == 0)
 225                         return varnish_submit_derive (conf->instance, "backend", "connections", "was-closed",    val);
 226                 else if (strcmp(name, "backend_recycle") == 0)
 227                         return varnish_submit_derive (conf->instance, "backend", "connections", "recycled",      val);
 228                 else if (strcmp(name, "backend_unused") == 0)
 229                         return varnish_submit_derive (conf->instance, "backend", "connections", "unused",        val);
 230                 else if (strcmp(name, "backend_retry") == 0)
 231                         return varnish_submit_derive (conf->instance, "backend", "connections", "retries",       val);
 232                 else if (strcmp(name, "backend_req") == 0)
 233                         return varnish_submit_derive (conf->instance, "backend", "http_requests", "requests",    val);
 234                 else if (strcmp(name, "n_backend") == 0)
 235                         return varnish_submit_gauge  (conf->instance, "backend", "backends", "n_backends",       val);
 236         }
 237
 238         if (conf->collect_fetch)
 239         {
 240                 if (strcmp(name, "fetch_head") == 0)
 241                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "head",        val);
 242                 else if (strcmp(name, "fetch_length") == 0)
 243                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "length",      val);
 244                 else if (strcmp(name, "fetch_chunked") == 0)
 245                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked",     val);
 246                 else if (strcmp(name, "fetch_eof") == 0)
 247                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof",         val);
 248                 else if (strcmp(name, "fetch_bad") == 0)
 249                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", val);
 250                 else if (strcmp(name, "fetch_close") == 0)
 251                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "close",       val);
 252                 else if (strcmp(name, "fetch_oldhttp") == 0)
 253                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp",     val);
 254                 else if (strcmp(name, "fetch_zero") == 0)
 255                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero",        val);
 256                 else if (strcmp(name, "fetch_failed") == 0)
 257                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed",      val);
 258                 else if (strcmp(name, "fetch_1xx") == 0)
 259                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_1xx", val);
 260                 else if (strcmp(name, "fetch_204") == 0)
 261                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_204", val);
 262                 else if (strcmp(name, "fetch_304") == 0)
 263                         return varnish_submit_derive (conf->instance, "fetch", "http_requests", "no_body_304", val);
 264         }
 265
 266         if (conf->collect_hcb)
 267         {
 268                 if (strcmp(name, "hcb_nolock") == 0)
 269                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", val);
 270                 else if (strcmp(name, "hcb_lock") == 0)
 271                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock",   val);
 272                 else if (strcmp(name, "hcb_insert") == 0)
 273                         return varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert",        val);
 274         }
 275
 276         if (conf->collect_objects)
 277         {
 278                 if (strcmp(name, "n_expired") == 0)
 279                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "expired",            val);
 280                 else if (strcmp(name, "n_lru_nuked") == 0)
 281                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_nuked",          val);
 282                 else if (strcmp(name, "n_lru_saved") == 0)
 283                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_saved",          val);
 284                 else if (strcmp(name, "n_lru_moved") == 0)
 285                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_moved",          val);
 286                 else if (strcmp(name, "n_deathrow") == 0)
 287                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "deathrow",           val);
 288                 else if (strcmp(name, "losthdr") == 0)
 289                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "header_overflow",    val);
 290                 else if (strcmp(name, "n_obj_purged") == 0)
 291                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "purged",             val);
 292                 else if (strcmp(name, "n_objsendfile") == 0)
 293                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_sendfile",      val);
 294                 else if (strcmp(name, "n_objwrite") == 0)
 295                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_write",         val);
 296                 else if (strcmp(name, "n_objoverflow") == 0)
 297                         return varnish_submit_derive (conf->instance, "objects", "total_objects", "workspace_overflow", val);
 298         }
 299
 300 #if HAVE_VARNISH_V3
 301         if (conf->collect_ban)
 302         {
 303                 if (strcmp(name, "n_ban") == 0)
 304                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "total",          val);
 305                 else if (strcmp(name, "n_ban_add") == 0)
 306                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "added",          val);
 307                 else if (strcmp(name, "n_ban_retire") == 0)
 308                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted",        val);
 309                 else if (strcmp(name, "n_ban_obj_test") == 0)
 310                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "objects_tested", val);
 311                 else if (strcmp(name, "n_ban_re_test") == 0)
 312                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "regexps_tested", val);
 313                 else if (strcmp(name, "n_ban_dups") == 0)
 314                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate",      val);
 315         }
 316 #endif
 317 #if HAVE_VARNISH_V4
 318         if (conf->collect_ban)
 319         {
 320                 if (strcmp(name, "bans") == 0)
 321                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "total",     val);
 322                 else if (strcmp(name, "bans_added") == 0)
 323                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "added",     val);
 324                 else if (strcmp(name, "bans_obj") == 0)
 325                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "obj",       val);
 326                 else if (strcmp(name, "bans_req") == 0)
 327                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "req",       val);
 328                 else if (strcmp(name, "bans_completed") == 0)
 329                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "completed", val);
 330                 else if (strcmp(name, "bans_deleted") == 0)
 331                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "deleted",   val);
 332                 else if (strcmp(name, "bans_tested") == 0)
 333                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "tested",    val);
 334                 else if (strcmp(name, "bans_dups") == 0)
 335                         return varnish_submit_derive (conf->instance, "ban", "total_operations", "duplicate", val);
 336         }
 337 #endif
 338
 339         if (conf->collect_session)
 340         {
 341                 if (strcmp(name, "sess_closed") == 0)
 342                         return varnish_submit_derive (conf->instance, "session", "total_operations", "closed",    val);
 343                 else if (strcmp(name, "sess_pipeline") == 0)
 344                         return varnish_submit_derive (conf->instance, "session", "total_operations", "pipeline",  val);
 345                 else if (strcmp(name, "sess_readahead") == 0)
 346                         return varnish_submit_derive (conf->instance, "session", "total_operations", "readahead", val);
 347                 else if (strcmp(name, "sess_conn") == 0)
 348                         return varnish_submit_derive (conf->instance, "session", "total_operations", "accepted",  val);
 349                 else if (strcmp(name, "sess_drop") == 0)
 350                         return varnish_submit_derive (conf->instance, "session", "total_operations", "dropped",   val);
 351                 else if (strcmp(name, "sess_fail") == 0)
 352                         return varnish_submit_derive (conf->instance, "session", "total_operations", "failed",    val);
 353                 else if (strcmp(name, "sess_pipe_overflow") == 0)
 354                         return varnish_submit_derive (conf->instance, "session", "total_operations", "overflow",  val);
 355                 else if (strcmp(name, "sess_queued") == 0)
 356                         return varnish_submit_derive (conf->instance, "session", "total_operations", "queued",    val);
 357                 else if (strcmp(name, "sess_linger") == 0)
 358                         return varnish_submit_derive (conf->instance, "session", "total_operations", "linger",    val);
 359                 else if (strcmp(name, "sess_herd") == 0)
 360                         return varnish_submit_derive (conf->instance, "session", "total_operations", "herd",      val);
 361         }
 362
 363         if (conf->collect_shm)
 364         {
 365                 if (strcmp(name, "shm_records") == 0)
 366                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "records",    val);
 367                 else if (strcmp(name, "shm_writes") == 0)
 368                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "writes",     val);
 369                 else if (strcmp(name, "shm_flushes") == 0)
 370                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes",    val);
 371                 else if (strcmp(name, "shm_cont") == 0)
 372                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", val);
 373                 else if (strcmp(name, "shm_cycles") == 0)
 374                         return varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles",     val);
 375         }
 376
 377         if (conf->collect_sms)
 378         {
 379                 if (strcmp(name, "sms_nreq") == 0)
 380                         return varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", val);
 381                 else if (strcmp(name, "sms_nobj") == 0)
 382                         return varnish_submit_gauge (conf->instance,  "sms", "requests", "outstanding",     val);
 383                 else if (strcmp(name, "sms_nbytes") == 0)
 384                         return varnish_submit_gauge (conf->instance,  "sms", "bytes", "outstanding",        val);
 385                 else if (strcmp(name, "sms_balloc") == 0)
 386                         return varnish_submit_derive (conf->instance,  "sms", "total_bytes", "allocated",   val);
 387                 else if (strcmp(name, "sms_bfree") == 0)
 388                         return varnish_submit_derive (conf->instance,  "sms", "total_bytes", "free",        val);
 389         }
 390
 391         if (conf->collect_struct)
 392         {
 393                 if (strcmp(name, "n_sess_mem") == 0)
 394                         return varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess_mem",  val);
 395                 else if (strcmp(name, "n_sess") == 0)
 396                         return varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess",      val);
 397                 else if (strcmp(name, "n_object") == 0)
 398                         return varnish_submit_gauge (conf->instance, "struct", "objects", "object",             val);
 399                 else if (strcmp(name, "n_vampireobject") == 0)
 400                         return varnish_submit_gauge (conf->instance, "struct", "objects", "vampireobject",      val);
 401                 else if (strcmp(name, "n_objectcore") == 0)
 402                         return varnish_submit_gauge (conf->instance, "struct", "objects", "objectcore",         val);
 403                 else if (strcmp(name, "n_waitinglist") == 0)
 404                         return varnish_submit_gauge (conf->instance, "struct", "objects", "waitinglist",        val);
 405                 else if (strcmp(name, "n_objecthead") == 0)
 406                         return varnish_submit_gauge (conf->instance, "struct", "objects", "objecthead",         val);
 407                 else if (strcmp(name, "n_smf") == 0)
 408                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf",                val);
 409                 else if (strcmp(name, "n_smf_frag") == 0)
 410                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf_frag",           val);
 411                 else if (strcmp(name, "n_smf_large") == 0)
 412                         return varnish_submit_gauge (conf->instance, "struct", "objects", "smf_large",          val);
 413                 else if (strcmp(name, "n_vbe_conn") == 0)
 414                         return varnish_submit_gauge (conf->instance, "struct", "objects", "vbe_conn",           val);
 415         }
 416
 417         if (conf->collect_totals)
 418         {
 419                 if (strcmp(name, "s_sess") == 0)
 420                         return varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions",  val);
 421                 else if (strcmp(name, "s_req") == 0)
 422                         return varnish_submit_derive (conf->instance, "totals", "total_requests", "requests",  val);
 423                 else if (strcmp(name, "s_pipe") == 0)
 424                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe",    val);
 425                 else if (strcmp(name, "s_pass") == 0)
 426                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "pass",    val);
 427                 else if (strcmp(name, "s_fetch") == 0)
 428                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", val);
 429                 else if (strcmp(name, "s_synth") == 0)
 430                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "synth",        val);
 431                 else if (strcmp(name, "s_req_hdrbytes") == 0)
 432                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_header",   val);
 433                 else if (strcmp(name, "s_req_bodybytes") == 0)
 434                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "req_body",     val);
 435                 else if (strcmp(name, "s_resp_hdrbytes") == 0)
 436                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_header",  val);
 437                 else if (strcmp(name, "s_resp_bodybytes") == 0)
 438                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "resp_body",    val);
 439                 else if (strcmp(name, "s_pipe_hdrbytes") == 0)
 440                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_header",  val);
 441                 else if (strcmp(name, "s_pipe_in") == 0)
 442                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_in",      val);
 443                 else if (strcmp(name, "s_pipe_out") == 0)
 444                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "pipe_out",     val);
 445                 else if (strcmp(name, "n_purges") == 0)
 446                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "purges",  val);
 447                 else if (strcmp(name, "s_hdrbytes") == 0)
 448                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", val);
 449                 else if (strcmp(name, "s_bodybytes") == 0)
 450                         return varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes",   val);
 451                 else if (strcmp(name, "n_gzip") == 0)
 452                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "gzip",    val);
 453                 else if (strcmp(name, "n_gunzip") == 0)
 454                         return varnish_submit_derive (conf->instance, "totals", "total_operations", "gunzip",  val);
 455         }
 456
 457         if (conf->collect_uptime)
 458         {
 459                 if (strcmp(name, "uptime") == 0)
 460                         return varnish_submit_gauge (conf->instance, "uptime", "uptime", "client_uptime", val);
 461         }
 462
 463         if (conf->collect_vcl)
 464         {
 465                 if (strcmp(name, "n_vcl") == 0)
 466                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "total_vcl",     val);
 467                 else if (strcmp(name, "n_vcl_avail") == 0)
 468                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "avail_vcl",     val);
 469                 else if (strcmp(name, "n_vcl_discard") == 0)
 470                         return varnish_submit_gauge (conf->instance, "vcl", "vcl", "discarded_vcl", val);
 471                 else if (strcmp(name, "vmods") == 0)
 472                         return varnish_submit_gauge (conf->instance, "vcl", "objects", "vmod",      val);
 473         }
 474
 475         if (conf->collect_workers)
 476         {
 477                 if (strcmp(name, "threads") == 0)
 478                         return varnish_submit_gauge (conf->instance, "workers", "threads", "worker",               val);
 479                 else if (strcmp(name, "threads_created") == 0)
 480                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "created",       val);
 481                 else if (strcmp(name, "threads_failed") == 0)
 482                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",        val);
 483                 else if (strcmp(name, "threads_limited") == 0)
 484                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",       val);
 485                 else if (strcmp(name, "threads_destroyed") == 0)
 486                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",       val);
 487                 else if (strcmp(name, "thread_queue_len") == 0)
 488                         return varnish_submit_derive (conf->instance, "workers", "queue_length",  "threads",       val);
 489                 else if (strcmp(name, "n_wrk") == 0)
 490                         return varnish_submit_gauge (conf->instance, "workers", "threads", "worker",               val);
 491                 else if (strcmp(name, "n_wrk_create") == 0)
 492                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "created",       val);
 493                 else if (strcmp(name, "n_wrk_failed") == 0)
 494                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",        val);
 495                 else if (strcmp(name, "n_wrk_max") == 0)
 496                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",       val);
 497                 else if (strcmp(name, "n_wrk_drop") == 0)
 498                         return varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",       val);
 499                 else if (strcmp(name, "n_wrk_queue") == 0)
 500                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",       val);
 501                 else if (strcmp(name, "n_wrk_overflow") == 0)
 502                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "overflowed",   val);
 503                 else if (strcmp(name, "n_wrk_queued") == 0)
 504                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",       val);
 505                 else if (strcmp(name, "n_wrk_lqueue") == 0)
 506                         return varnish_submit_derive (conf->instance, "workers", "total_requests", "queue_length", val);
 507         }
 508
 509 #if HAVE_VARNISH_V4
 510         if (conf->collect_vsm)
 511         {
 512                 if (strcmp(name, "vsm_free") == 0)
 513                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "free",              val);
 514                 else if (strcmp(name, "vsm_used") == 0)
 515                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "used",              val);
 516                 else if (strcmp(name, "vsm_cooling") == 0)
 517                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "cooling",           val);
 518                 else if (strcmp(name, "vsm_overflow") == 0)
 519                         return varnish_submit_gauge (conf->instance, "vsm", "bytes", "overflow",          val);
 520                 else if (strcmp(name, "vsm_overflowed") == 0)
 521                         return varnish_submit_derive (conf->instance, "vsm", "total_bytes", "overflowed", val);
 522         }
 523 #endif
 524
 525         return (0);
 526
 527 } /* }}} static int varnish_monitor */
 528 #else /* if HAVE_VARNISH_V2 */
 529 static void varnish_monitor (const user_config_t *conf, /* {{{ */
 530                 const c_varnish_stats_t *stats)
 531 {
 532         if (conf->collect_cache)
 533         {
 534                 /* Cache hits */
 535                 varnish_submit_derive (conf->instance, "cache", "cache_result", "hit",     stats->cache_hit);
 536                 /* Cache misses */
 537                 varnish_submit_derive (conf->instance, "cache", "cache_result", "miss",    stats->cache_miss);
 538                 /* Cache hits for pass */
 539                 varnish_submit_derive (conf->instance, "cache", "cache_result", "hitpass", stats->cache_hitpass);
 540         }
 541
 542         if (conf->collect_connections)
 543         {
 544                 /* Client connections accepted */
 545                 varnish_submit_derive (conf->instance, "connections", "connections", "accepted", stats->client_conn);
 546                 /* Connection dropped, no sess */
 547                 varnish_submit_derive (conf->instance, "connections", "connections", "dropped" , stats->client_drop);
 548                 /* Client requests received    */
 549                 varnish_submit_derive (conf->instance, "connections", "connections", "received", stats->client_req);
 550         }
 551
 552         if (conf->collect_esi)
 553         {
 554                 /* ESI parse errors (unlock)   */
 555                 varnish_submit_derive (conf->instance, "esi", "total_operations", "error",   stats->esi_errors);
 556                 /* Objects ESI parsed (unlock) */
 557                 varnish_submit_derive (conf->instance, "esi", "total_operations", "parsed",  stats->esi_parse);
 558         }
 559
 560         if (conf->collect_backend)
 561         {
 562                 /* Backend conn. success       */
 563                 varnish_submit_derive (conf->instance, "backend", "connections", "success"      , stats->backend_conn);
 564                 /* Backend conn. not attempted */
 565                 varnish_submit_derive (conf->instance, "backend", "connections", "not-attempted", stats->backend_unhealthy);
 566                 /* Backend conn. too many      */
 567                 varnish_submit_derive (conf->instance, "backend", "connections", "too-many"     , stats->backend_busy);
 568                 /* Backend conn. failures      */
 569                 varnish_submit_derive (conf->instance, "backend", "connections", "failures"     , stats->backend_fail);
 570                 /* Backend conn. reuses        */
 571                 varnish_submit_derive (conf->instance, "backend", "connections", "reuses"       , stats->backend_reuse);
 572                 /* Backend conn. was closed    */
 573                 varnish_submit_derive (conf->instance, "backend", "connections", "was-closed"   , stats->backend_toolate);
 574                 /* Backend conn. recycles      */
 575                 varnish_submit_derive (conf->instance, "backend", "connections", "recycled"     , stats->backend_recycle);
 576                 /* Backend conn. unused        */
 577                 varnish_submit_derive (conf->instance, "backend", "connections", "unused"       , stats->backend_unused);
 578                 /* Backend requests mades      */
 579                 varnish_submit_derive (conf->instance, "backend", "http_requests", "requests"   , stats->backend_req);
 580                 /* N backends                  */
 581                 varnish_submit_gauge  (conf->instance, "backend", "backends", "n_backends"      , stats->n_backend);
 582         }
 583
 584         if (conf->collect_fetch)
 585         {
 586                 /* Fetch head                */
 587                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "head"       , stats->fetch_head);
 588                 /* Fetch with length         */
 589                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "length"     , stats->fetch_length);
 590                 /* Fetch chunked             */
 591                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "chunked"    , stats->fetch_chunked);
 592                 /* Fetch EOF                 */
 593                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "eof"        , stats->fetch_eof);
 594                 /* Fetch bad headers         */
 595                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "bad_headers", stats->fetch_bad);
 596                 /* Fetch wanted close        */
 597                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "close"      , stats->fetch_close);
 598                 /* Fetch pre HTTP/1.1 closed */
 599                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "oldhttp"    , stats->fetch_oldhttp);
 600                 /* Fetch zero len            */
 601                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "zero"       , stats->fetch_zero);
 602                 /* Fetch failed              */
 603                 varnish_submit_derive (conf->instance, "fetch", "http_requests", "failed"     , stats->fetch_failed);
 604         }
 605
 606         if (conf->collect_hcb)
 607         {
 608                 /* HCB Lookups without lock */
 609                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_nolock", stats->hcb_nolock);
 610                 /* HCB Lookups with lock    */
 611                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "lookup_lock",   stats->hcb_lock);
 612                 /* HCB Inserts              */
 613                 varnish_submit_derive (conf->instance, "hcb", "cache_operation", "insert",        stats->hcb_insert);
 614         }
 615
 616         if (conf->collect_objects)
 617         {
 618                 /* N expired objects             */
 619                 varnish_submit_derive (conf->instance, "objects", "total_objects", "expired",            stats->n_expired);
 620                 /* N LRU nuked objects           */
 621                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_nuked",          stats->n_lru_nuked);
 622                 /* N LRU saved objects           */
 623                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_saved",          stats->n_lru_saved);
 624                 /* N LRU moved objects           */
 625                 varnish_submit_derive (conf->instance, "objects", "total_objects", "lru_moved",          stats->n_lru_moved);
 626                 /* N objects on deathrow         */
 627                 varnish_submit_derive (conf->instance, "objects", "total_objects", "deathrow",           stats->n_deathrow);
 628                 /* HTTP header overflows         */
 629                 varnish_submit_derive (conf->instance, "objects", "total_objects", "header_overflow",    stats->losthdr);
 630                 /* Objects sent with sendfile    */
 631                 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_sendfile",      stats->n_objsendfile);
 632                 /* Objects sent with write       */
 633                 varnish_submit_derive (conf->instance, "objects", "total_objects", "sent_write",         stats->n_objwrite);
 634                 /* Objects overflowing workspace */
 635                 varnish_submit_derive (conf->instance, "objects", "total_objects", "workspace_overflow", stats->n_objoverflow);
 636         }
 637
 638         if (conf->collect_purge)
 639         {
 640                 /* N total active purges      */
 641                 varnish_submit_derive (conf->instance, "purge", "total_operations", "total",            stats->n_purge);
 642                 /* N new purges added         */
 643                 varnish_submit_derive (conf->instance, "purge", "total_operations", "added",            stats->n_purge_add);
 644                 /* N old purges deleted       */
 645                 varnish_submit_derive (conf->instance, "purge", "total_operations", "deleted",          stats->n_purge_retire);
 646                 /* N objects tested           */
 647                 varnish_submit_derive (conf->instance, "purge", "total_operations", "objects_tested",   stats->n_purge_obj_test);
 648                 /* N regexps tested against   */
 649                 varnish_submit_derive (conf->instance, "purge", "total_operations", "regexps_tested",   stats->n_purge_re_test);
 650                 /* N duplicate purges removed */
 651                 varnish_submit_derive (conf->instance, "purge", "total_operations", "duplicate",        stats->n_purge_dups);
 652         }
 653
 654         if (conf->collect_session)
 655         {
 656                 /* Session Closed     */
 657                 varnish_submit_derive (conf->instance, "session", "total_operations", "closed",    stats->sess_closed);
 658                 /* Session Pipeline   */
 659                 varnish_submit_derive (conf->instance, "session", "total_operations", "pipeline",  stats->sess_pipeline);
 660                 /* Session Read Ahead */
 661                 varnish_submit_derive (conf->instance, "session", "total_operations", "readahead", stats->sess_readahead);
 662                 /* Session Linger     */
 663                 varnish_submit_derive (conf->instance, "session", "total_operations", "linger",    stats->sess_linger);
 664                 /* Session herd       */
 665                 varnish_submit_derive (conf->instance, "session", "total_operations", "herd",      stats->sess_herd);
 666         }
 667
 668         if (conf->collect_shm)
 669         {
 670                 /* SHM records                 */
 671                 varnish_submit_derive (conf->instance, "shm", "total_operations", "records"   , stats->shm_records);
 672                 /* SHM writes                  */
 673                 varnish_submit_derive (conf->instance, "shm", "total_operations", "writes"    , stats->shm_writes);
 674                 /* SHM flushes due to overflow */
 675                 varnish_submit_derive (conf->instance, "shm", "total_operations", "flushes"   , stats->shm_flushes);
 676                 /* SHM MTX contention          */
 677                 varnish_submit_derive (conf->instance, "shm", "total_operations", "contention", stats->shm_cont);
 678                 /* SHM cycles through buffer   */
 679                 varnish_submit_derive (conf->instance, "shm", "total_operations", "cycles"    , stats->shm_cycles);
 680         }
 681
 682         if (conf->collect_sm)
 683         {
 684                 /* allocator requests */
 685                 varnish_submit_derive (conf->instance, "sm", "total_requests", "nreq",         stats->sm_nreq);
 686                 /* outstanding allocations */
 687                 varnish_submit_gauge (conf->instance,  "sm", "requests", "outstanding",        stats->sm_nobj);
 688                 /* bytes allocated */
 689                 varnish_submit_derive (conf->instance,  "sm", "total_bytes", "allocated",      stats->sm_balloc);
 690                 /* bytes free */
 691                 varnish_submit_derive (conf->instance,  "sm", "total_bytes", "free",           stats->sm_bfree);
 692         }
 693
 694         if (conf->collect_sma)
 695         {
 696                 /* SMA allocator requests */
 697                 varnish_submit_derive (conf->instance, "sma", "total_requests", "nreq",    stats->sma_nreq);
 698                 /* SMA outstanding allocations */
 699                 varnish_submit_gauge (conf->instance,  "sma", "requests", "outstanding",   stats->sma_nobj);
 700                 /* SMA outstanding bytes */
 701                 varnish_submit_gauge (conf->instance,  "sma", "bytes", "outstanding",      stats->sma_nbytes);
 702                 /* SMA bytes allocated */
 703                 varnish_submit_derive (conf->instance,  "sma", "total_bytes", "allocated", stats->sma_balloc);
 704                 /* SMA bytes free */
 705                 varnish_submit_derive (conf->instance,  "sma", "total_bytes", "free" ,     stats->sma_bfree);
 706         }
 707
 708         if (conf->collect_sms)
 709         {
 710                 /* SMS allocator requests */
 711                 varnish_submit_derive (conf->instance, "sms", "total_requests", "allocator", stats->sms_nreq);
 712                 /* SMS outstanding allocations */
 713                 varnish_submit_gauge (conf->instance,  "sms", "requests", "outstanding",     stats->sms_nobj);
 714                 /* SMS outstanding bytes */
 715                 varnish_submit_gauge (conf->instance,  "sms", "bytes", "outstanding",        stats->sms_nbytes);
 716                 /* SMS bytes allocated */
 717                 varnish_submit_derive (conf->instance,  "sms", "total_bytes", "allocated",   stats->sms_balloc);
 718                 /* SMS bytes freed */
 719                 varnish_submit_derive (conf->instance,  "sms", "total_bytes", "free",        stats->sms_bfree);
 720         }
 721
 722         if (conf->collect_struct)
 723         {
 724                 /* N struct sess_mem       */
 725                 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess_mem",  stats->n_sess_mem);
 726                 /* N struct sess           */
 727                 varnish_submit_gauge (conf->instance, "struct", "current_sessions", "sess",      stats->n_sess);
 728                 /* N struct object         */
 729                 varnish_submit_gauge (conf->instance, "struct", "objects", "object",             stats->n_object);
 730                 /* N struct objecthead     */
 731                 varnish_submit_gauge (conf->instance, "struct", "objects", "objecthead",         stats->n_objecthead);
 732                 /* N struct smf            */
 733                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf",                stats->n_smf);
 734                 /* N small free smf         */
 735                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_frag",           stats->n_smf_frag);
 736                 /* N large free smf         */
 737                 varnish_submit_gauge (conf->instance, "struct", "objects", "smf_large",          stats->n_smf_large);
 738                 /* N struct vbe_conn        */
 739                 varnish_submit_gauge (conf->instance, "struct", "objects", "vbe_conn",           stats->n_vbe_conn);
 740         }
 741
 742         if (conf->collect_totals)
 743         {
 744                 /* Total Sessions */
 745                 varnish_submit_derive (conf->instance, "totals", "total_sessions", "sessions",  stats->s_sess);
 746                 /* Total Requests */
 747                 varnish_submit_derive (conf->instance, "totals", "total_requests", "requests",  stats->s_req);
 748                 /* Total pipe */
 749                 varnish_submit_derive (conf->instance, "totals", "total_operations", "pipe",    stats->s_pipe);
 750                 /* Total pass */
 751                 varnish_submit_derive (conf->instance, "totals", "total_operations", "pass",    stats->s_pass);
 752                 /* Total fetch */
 753                 varnish_submit_derive (conf->instance, "totals", "total_operations", "fetches", stats->s_fetch);
 754                 /* Total header bytes */
 755                 varnish_submit_derive (conf->instance, "totals", "total_bytes", "header-bytes", stats->s_hdrbytes);
 756                 /* Total body byte */
 757                 varnish_submit_derive (conf->instance, "totals", "total_bytes", "body-bytes",   stats->s_bodybytes);
 758         }
 759
 760         if (conf->collect_vcl)
 761         {
 762                 /* N vcl total     */
 763                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "total_vcl",     stats->n_vcl);
 764                 /* N vcl available */
 765                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "avail_vcl",     stats->n_vcl_avail);
 766                 /* N vcl discarded */
 767                 varnish_submit_gauge (conf->instance, "vcl", "vcl", "discarded_vcl", stats->n_vcl_discard);
 768         }
 769
 770         if (conf->collect_workers)
 771         {
 772                 /* worker threads */
 773                 varnish_submit_gauge (conf->instance, "workers", "threads", "worker",             stats->n_wrk);
 774                 /* worker threads created */
 775                 varnish_submit_derive (conf->instance, "workers", "total_threads", "created",     stats->n_wrk_create);
 776                 /* worker threads not created */
 777                 varnish_submit_derive (conf->instance, "workers", "total_threads", "failed",      stats->n_wrk_failed);
 778                 /* worker threads limited */
 779                 varnish_submit_derive (conf->instance, "workers", "total_threads", "limited",     stats->n_wrk_max);
 780                 /* dropped work requests */
 781                 varnish_submit_derive (conf->instance, "workers", "total_threads", "dropped",     stats->n_wrk_drop);
 782                 /* queued work requests */
 783                 varnish_submit_derive (conf->instance, "workers", "total_requests", "queued",     stats->n_wrk_queue);
 784                 /* overflowed work requests */
 785                 varnish_submit_derive (conf->instance, "workers", "total_requests", "overflowed", stats->n_wrk_overflow);
 786         }
 787
 788 } /* }}} void varnish_monitor */
 789 #endif
 790
 791 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 792 static int varnish_read (user_data_t *ud) /* {{{ */
 793 {
 794         struct VSM_data *vd;
 795         const c_varnish_stats_t *stats;
 796         _Bool ok;
 797
 798         user_config_t *conf;
 799
 800         if ((ud == NULL) || (ud->data == NULL))
 801                 return (EINVAL);
 802
 803         conf = ud->data;
 804
 805         vd = VSM_New();
 806 #if HAVE_VARNISH_V3
 807         VSC_Setup(vd);
 808 #endif
 809
 810         if (conf->instance != NULL)
 811         {
 812                 int status;
 813
 814                 status = VSM_n_Arg (vd, conf->instance);
 815                 if (status < 0)
 816                 {
 817                         VSM_Delete (vd);
 818                         ERROR ("varnish plugin: VSM_n_Arg (\"%s\") failed "
 819                                         "with status %i.",
 820                                         conf->instance, status);
 821                         return (-1);
 822                 }
 823         }
 824
 825 #if HAVE_VARNISH_V3
 826         ok = (VSC_Open (vd, /* diag = */ 1) == 0);
 827 #else /* if HAVE_VARNISH_V4 */
 828         ok = (VSM_Open (vd) == 0);
 829 #endif
 830         if (!ok)
 831         {
 832                 VSM_Delete (vd);
 833                 ERROR ("varnish plugin: Unable to open connection.");
 834
 835                 return (-1);
 836         }
 837
 838 #if HAVE_VARNISH_V3
 839         stats = VSC_Main(vd);
 840 #else /* if HAVE_VARNISH_V4 */
 841         stats = VSC_Main(vd, NULL);
 842 #endif
 843         if (!stats)
 844         {
 845                 VSM_Delete (vd);
 846                 ERROR ("varnish plugin: Unable to get statistics.");
 847
 848                 return (-1);
 849         }
 850
 851 #if HAVE_VARNISH_V3
 852         VSC_Iter (vd, varnish_monitor, conf);
 853 #else /* if HAVE_VARNISH_V4 */
 854         VSC_Iter (vd, NULL, varnish_monitor, conf);
 855 #endif
 856         VSM_Delete (vd);
 857
 858         return (0);
 859 } /* }}} */
 860 #else /* if HAVE_VARNISH_V2 */
 861 static int varnish_read (user_data_t *ud) /* {{{ */
 862 {
 863         const c_varnish_stats_t *stats;
 864
 865         user_config_t *conf;
 866
 867         if ((ud == NULL) || (ud->data == NULL))
 868                 return (EINVAL);
 869
 870         conf = ud->data;
 871
 872         stats = VSL_OpenStats (conf->instance);
 873         if (stats == NULL)
 874         {
 875                 ERROR ("Varnish plugin : unable to load statistics");
 876
 877                 return (-1);
 878         }
 879
 880         varnish_monitor (conf, stats);
 881
 882         return (0);
 883 } /* }}} */
 884 #endif
 885
 886 static void varnish_config_free (void *ptr) /* {{{ */
 887 {
 888         user_config_t *conf = ptr;
 889
 890         if (conf == NULL)
 891                 return;
 892
 893         sfree (conf->instance);
 894         sfree (conf);
 895 } /* }}} */
 896
 897 static int varnish_config_apply_default (user_config_t *conf) /* {{{ */
 898 {
 899         if (conf == NULL)
 900                 return (EINVAL);
 901
 902         conf->collect_backend     = 1;
 903         conf->collect_cache       = 1;
 904         conf->collect_connections = 1;
 905 #ifdef HAVE_VARNISH_V3
 906         conf->collect_dirdns      = 0;
 907 #endif
 908         conf->collect_esi         = 0;
 909         conf->collect_fetch       = 0;
 910         conf->collect_hcb         = 0;
 911         conf->collect_objects     = 0;
 912 #if HAVE_VARNISH_V2
 913         conf->collect_purge       = 0;
 914 #else
 915         conf->collect_ban         = 0;
 916 #endif
 917         conf->collect_session     = 0;
 918         conf->collect_shm         = 1;
 919 #if HAVE_VARNISH_V2
 920         conf->collect_sm          = 0;
 921         conf->collect_sma         = 0;
 922 #endif
 923         conf->collect_sms         = 0;
 924         conf->collect_struct      = 0;
 925         conf->collect_totals      = 0;
 926 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
 927         conf->collect_uptime      = 0;
 928 #endif
 929         conf->collect_vcl         = 0;
 930         conf->collect_workers     = 0;
 931 #if HAVE_VARNISH_V4
 932         conf->collect_vsm         = 0;
 933 #endif
 934
 935         return (0);
 936 } /* }}} int varnish_config_apply_default */
 937
 938 static int varnish_init (void) /* {{{ */
 939 {
 940         user_config_t *conf;
 941
 942         if (have_instance)
 943                 return (0);
 944
 945         conf = calloc (1, sizeof (*conf));
 946         if (conf == NULL)
 947                 return (ENOMEM);
 948
 949         /* Default settings: */
 950         conf->instance = NULL;
 951
 952         varnish_config_apply_default (conf);
 953
 954         user_data_t ud = {
 955                 .data = conf,
 956                 .free_func = varnish_config_free
 957         };
 958
 959         plugin_register_complex_read (/* group = */ "varnish",
 960                         /* name      = */ "varnish/localhost",
 961                         /* callback  = */ varnish_read,
 962                         /* interval  = */ 0,
 963                         /* user data = */ &ud);
 964
 965         return (0);
 966 } /* }}} int varnish_init */
 967
 968 static int varnish_config_instance (const oconfig_item_t *ci) /* {{{ */
 969 {
 970         user_config_t *conf;
 971         user_data_t ud;
 972         char callback_name[DATA_MAX_NAME_LEN];
 973
 974         conf = calloc (1, sizeof (*conf));
 975         if (conf == NULL)
 976                 return (ENOMEM);
 977         conf->instance = NULL;
 978
 979         varnish_config_apply_default (conf);
 980
 981         if (ci->values_num == 1)
 982         {
 983                 int status;
 984
 985                 status = cf_util_get_string (ci, &conf->instance);
 986                 if (status != 0)
 987                 {
 988                         sfree (conf);
 989                         return (status);
 990                 }
 991                 assert (conf->instance != NULL);
 992
 993                 if (strcmp ("localhost", conf->instance) == 0)
 994                 {
 995                         sfree (conf->instance);
 996                         conf->instance = NULL;
 997                 }
 998         }
 999         else if (ci->values_num > 1)
1000         {
1001                 WARNING ("Varnish plugin: \"Instance\" blocks accept only "
1002                                 "one argument.");
1003                 sfree (conf);
1004                 return (EINVAL);
1005         }
1006
1007         for (int i = 0; i < ci->children_num; i++)
1008         {
1009                 oconfig_item_t *child = ci->children + i;
1010
1011                 if (strcasecmp ("CollectCache", child->key) == 0)
1012                         cf_util_get_boolean (child, &conf->collect_cache);
1013                 else if (strcasecmp ("CollectConnections", child->key) == 0)
1014                         cf_util_get_boolean (child, &conf->collect_connections);
1015                 else if (strcasecmp ("CollectESI", child->key) == 0)
1016                         cf_util_get_boolean (child, &conf->collect_esi);
1017                 else if (strcasecmp ("CollectDirectorDNS", child->key) == 0)
1018 #ifdef HAVE_VARNISH_V3
1019                         cf_util_get_boolean (child, &conf->collect_dirdns);
1020 #else
1021                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v3");
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                 else if (strcasecmp ("CollectPurge", child->key) == 0)
1032 #if HAVE_VARNISH_V2
1033                         cf_util_get_boolean (child, &conf->collect_purge);
1034 #else
1035                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v2");
1036 #endif
1037                 else if (strcasecmp ("CollectBan", child->key) == 0)
1038 #if HAVE_VARNISH_V2
1039                         WARNING ("Varnish plugin: \"%s\" is not available for Varnish %s.", child->key, "v2");
1040 #else
1041                         cf_util_get_boolean (child, &conf->collect_ban);
1042 #endif
1043                 else if (strcasecmp ("CollectSession", child->key) == 0)
1044                         cf_util_get_boolean (child, &conf->collect_session);
1045                 else if (strcasecmp ("CollectSHM", child->key) == 0)
1046                         cf_util_get_boolean (child, &conf->collect_shm);
1047                 else if (strcasecmp ("CollectSMS", child->key) == 0)
1048                         cf_util_get_boolean (child, &conf->collect_sms);
1049                 else if (strcasecmp ("CollectSMA", child->key) == 0)
1050 #if HAVE_VARNISH_V2
1051                         cf_util_get_boolean (child, &conf->collect_sma);
1052 #else
1053                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v2");
1054 #endif
1055                 else if (strcasecmp ("CollectSM", child->key) == 0)
1056 #if HAVE_VARNISH_V2
1057                         cf_util_get_boolean (child, &conf->collect_sm);
1058 #else
1059                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v2");
1060 #endif
1061                 else if (strcasecmp ("CollectStruct", child->key) == 0)
1062                         cf_util_get_boolean (child, &conf->collect_struct);
1063                 else if (strcasecmp ("CollectTotals", child->key) == 0)
1064                         cf_util_get_boolean (child, &conf->collect_totals);
1065                 else if (strcasecmp ("CollectUptime", child->key) == 0)
1066 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
1067                         cf_util_get_boolean (child, &conf->collect_uptime);
1068 #else
1069                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v3 and v4");
1070 #endif
1071                 else if (strcasecmp ("CollectVCL", child->key) == 0)
1072                         cf_util_get_boolean (child, &conf->collect_vcl);
1073                 else if (strcasecmp ("CollectWorkers", child->key) == 0)
1074                         cf_util_get_boolean (child, &conf->collect_workers);
1075                 else if (strcasecmp ("CollectVSM", child->key) == 0)
1076 #if HAVE_VARNISH_V4
1077                         cf_util_get_boolean (child, &conf->collect_vsm);
1078 #else
1079                         WARNING ("Varnish plugin: \"%s\" is available for Varnish %s only.", child->key, "v4");
1080 #endif
1081                 else
1082                 {
1083                         WARNING ("Varnish plugin: Ignoring unknown "
1084                                         "configuration option: \"%s\". Did "
1085                                         "you forget to add an <Instance /> "
1086                                         "block around the configuration?",
1087                                         child->key);
1088                 }
1089         }
1090
1091         if (!conf->collect_cache
1092                         && !conf->collect_connections
1093                         && !conf->collect_esi
1094                         && !conf->collect_backend
1095 #ifdef HAVE_VARNISH_V3
1096                         && !conf->collect_dirdns
1097 #endif
1098                         && !conf->collect_fetch
1099                         && !conf->collect_hcb
1100                         && !conf->collect_objects
1101 #if HAVE_VARNISH_V2
1102                         && !conf->collect_purge
1103 #else
1104                         && !conf->collect_ban
1105 #endif
1106                         && !conf->collect_session
1107                         && !conf->collect_shm
1108                         && !conf->collect_sms
1109 #if HAVE_VARNISH_V2
1110                         && !conf->collect_sma
1111                         && !conf->collect_sm
1112 #endif
1113                         && !conf->collect_struct
1114                         && !conf->collect_totals
1115 #if HAVE_VARNISH_V3 || HAVE_VARNISH_V4
1116                         && !conf->collect_uptime
1117 #endif
1118                         && !conf->collect_vcl
1119                         && !conf->collect_workers
1120 #if HAVE_VARNISH_V4
1121                         && !conf->collect_vsm
1122 #endif
1123         )
1124         {
1125                 WARNING ("Varnish plugin: No metric has been configured for "
1126                                 "instance \"%s\". Disabling this instance.",
1127                                 (conf->instance == NULL) ? "localhost" : conf->instance);
1128                 sfree (conf);
1129                 return (EINVAL);
1130         }
1131
1132         ssnprintf (callback_name, sizeof (callback_name), "varnish/%s",
1133                         (conf->instance == NULL) ? "localhost" : conf->instance);
1134
1135         ud.data = conf;
1136         ud.free_func = varnish_config_free;
1137
1138         plugin_register_complex_read (/* group = */ "varnish",
1139                         /* name      = */ callback_name,
1140                         /* callback  = */ varnish_read,
1141                         /* interval  = */ 0,
1142                         /* user data = */ &ud);
1143
1144         have_instance = 1;
1145
1146         return (0);
1147 } /* }}} int varnish_config_instance */
1148
1149 static int varnish_config (oconfig_item_t *ci) /* {{{ */
1150 {
1151         for (int i = 0; i < ci->children_num; i++)
1152         {
1153                 oconfig_item_t *child = ci->children + i;
1154
1155                 if (strcasecmp ("Instance", child->key) == 0)
1156                         varnish_config_instance (child);
1157                 else
1158                 {
1159                         WARNING ("Varnish plugin: Ignoring unknown "
1160                                         "configuration option: \"%s\"",
1161                                         child->key);
1162                 }
1163         }
1164
1165         return (0);
1166 } /* }}} int varnish_config */
1167
1168 void module_register (void) /* {{{ */
1169 {
1170         plugin_register_complex_config ("varnish", varnish_config);
1171         plugin_register_init ("varnish", varnish_init);
1172 } /* }}} */
1173
1174 /* vim: set sw=8 noet fdm=marker : */