X-Git-Url: https://git.octo.it/?p=collectd.git;a=blobdiff_plain;f=src%2Fbind.c;h=38d4a27f1ca29de115fe59dd6e119f5414e3914a;hp=f09a08eb6938ab744165fdd37be4d00144a30fc4;hb=59c7ee1cafaf53814838794908dd84f8101334c7;hpb=8bc093a2476f2bef751c9d3d9e382a7e62d060b3 diff --git a/src/bind.c b/src/bind.c index f09a08eb..38d4a27f 100644 --- a/src/bind.c +++ b/src/bind.c @@ -1,6 +1,7 @@ /** * collectd - src/bind.c - * Copyright (C) 2009 Bruno Prémont + * Copyright (C) 2009 Bruno Prémont + * Copyright (C) 2009,2010 Florian Forster * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the @@ -17,45 +18,96 @@ * * Authors: * Bruno Prémont + * Florian Forster **/ -/* Set to C99 and POSIX code */ -#ifndef _ISOC99_SOURCE -# define _ISOC99_SOURCE -#endif -#ifndef _POSIX_SOURCE -# define _POSIX_SOURCE -#endif -#ifndef _POSIX_C_SOURCE -# define _POSIX_C_SOURCE 200112L -#endif -#ifndef _REENTRANT -# define _REENTRANT -#endif -#ifndef _XOPEN_SOURCE -# define _XOPEN_SOURCE 600 -#endif -#ifndef _BSD_SOURCE -# define _BSD_SOURCE -#endif +#include "config.h" + +#if STRPTIME_NEEDS_STANDARDS +# ifndef _ISOC99_SOURCE +# define _ISOC99_SOURCE 1 +# endif +# ifndef _POSIX_C_SOURCE +# define _POSIX_C_SOURCE 200112L +# endif +# ifndef _XOPEN_SOURCE +# define _XOPEN_SOURCE 500 +# endif +#endif /* STRPTIME_NEEDS_STANDARDS */ #include "collectd.h" #include "common.h" #include "plugin.h" #include "configfile.h" +/* Some versions of libcurl don't include this themselves and then don't have + * fd_set available. */ +#if HAVE_SYS_SELECT_H +# include +#endif + #include #include #include -static char *url = NULL; -static bool use_rrqueries_in = 1; -static bool use_requests = 1; -static bool use_query_results = 1; -static bool use_updates = 1; -static bool use_zone_maint = 1; -static bool use_resolver = 1; -static char *srv_boot_ts = NULL; +#ifndef BIND_DEFAULT_URL +# define BIND_DEFAULT_URL "http://localhost:8053/" +#endif + +/* + * Some types used for the callback functions. `translation_table_ptr_t' and + * `list_info_ptr_t' are passed to the callbacks in the `void *user_data' + * pointer. + */ +typedef int (*list_callback_t) (const char *name, value_t value, + time_t current_time, void *user_data); + +struct cb_view_s +{ + char *name; + + int qtypes; + int resolver_stats; + int cacherrsets; + + char **zones; + size_t zones_num; +}; +typedef struct cb_view_s cb_view_t; + +struct translation_info_s +{ + const char *xml_name; + const char *type; + const char *type_instance; +}; +typedef struct translation_info_s translation_info_t; + +struct translation_table_ptr_s +{ + const translation_info_t *table; + size_t table_length; + const char *plugin_instance; +}; +typedef struct translation_table_ptr_s translation_table_ptr_t; + +struct list_info_ptr_s +{ + const char *plugin_instance; + const char *type; +}; +typedef struct list_info_ptr_s list_info_ptr_t; + +static char *url = NULL; +static int global_opcodes = 1; +static int global_qtypes = 1; +static int global_server_stats = 1; +static int global_zone_maint_stats = 1; +static int global_resolver_stats = 0; +static int global_memory_stats = 1; + +static cb_view_t *views = NULL; +static size_t views_num = 0; static CURL *curl = NULL; @@ -64,60 +116,158 @@ static size_t bind_buffer_size = 0; static size_t bind_buffer_fill = 0; static char bind_curl_error[CURL_ERROR_SIZE]; -static const char *config_keys[] = +/* Translation table for the `nsstats' values. */ +static const translation_info_t nsstats_translation_table[] = /* {{{ */ { - "URL", - "RRQueriesIn", - "Requests", - "QueryResults", - "Updates", - "ZoneMaintenance", - "Resolver" + /* Requests */ + { "Requestv4", "dns_request", "IPv4" }, + { "Requestv6", "dns_request", "IPv6" }, + { "ReqEdns0", "dns_request", "EDNS0" }, + { "ReqBadEDNSVer", "dns_request", "BadEDNSVer" }, + { "ReqTSIG", "dns_request", "TSIG" }, + { "ReqSIG0", "dns_request", "SIG0" }, + { "ReqBadSIG", "dns_request", "BadSIG" }, + { "ReqTCP", "dns_request", "TCP" }, + /* Rejects */ + { "AuthQryRej", "dns_reject", "authorative" }, + { "RecQryRej", "dns_reject", "recursive" }, + { "XfrRej", "dns_reject", "transfer" }, + { "UpdateRej", "dns_reject", "update" }, + /* Responses */ + { "Response", "dns_response", "normal" }, + { "TruncatedResp", "dns_response", "truncated" }, + { "RespEDNS0", "dns_response", "EDNS0" }, + { "RespTSIG", "dns_response", "TSIG" }, + { "RespSIG0", "dns_response", "SIG0" }, + /* Queries */ + { "QryAuthAns", "dns_query", "authorative" }, + { "QryNoauthAns", "dns_query", "nonauth" }, + { "QryReferral", "dns_query", "referral" }, + { "QryRecursion", "dns_query", "recursion" }, + { "QryDuplicate", "dns_query", "dupliate" }, + { "QryDropped", "dns_query", "dropped" }, + { "QryFailure", "dns_query", "failure" }, + /* Response codes */ + { "QrySuccess", "dns_rcode", "tx-NOERROR" }, + { "QryNxrrset", "dns_rcode", "tx-NXRRSET" }, + { "QrySERVFAIL", "dns_rcode", "tx-SERVFAIL" }, + { "QryFORMERR", "dns_rcode", "tx-FORMERR" }, + { "QryNXDOMAIN", "dns_rcode", "tx-NXDOMAIN" } +#if 0 + { "XfrReqDone", "type", "type_instance" }, + { "UpdateReqFwd", "type", "type_instance" }, + { "UpdateRespFwd", "type", "type_instance" }, + { "UpdateFwdFail", "type", "type_instance" }, + { "UpdateDone", "type", "type_instance" }, + { "UpdateFail", "type", "type_instance" }, + { "UpdateBadPrereq", "type", "type_instance" }, +#endif }; -static int config_keys_num = STATIC_ARRAY_SIZE (config_keys); +static int nsstats_translation_table_length = + STATIC_ARRAY_SIZE (nsstats_translation_table); +/* }}} */ -static void remove_special (char *buffer, size_t buffer_size) +/* Translation table for the `zonestats' values. */ +static const translation_info_t zonestats_translation_table[] = /* {{{ */ { - size_t i; + /* Notify's */ + { "NotifyOutv4", "dns_notify", "tx-IPv4" }, + { "NotifyOutv6", "dns_notify", "tx-IPv6" }, + { "NotifyInv4", "dns_notify", "rx-IPv4" }, + { "NotifyInv6", "dns_notify", "rx-IPv6" }, + { "NotifyRej", "dns_notify", "rejected" }, + /* SOA/AXFS/IXFS requests */ + { "SOAOutv4", "dns_opcode", "SOA-IPv4" }, + { "SOAOutv6", "dns_opcode", "SOA-IPv6" }, + { "AXFRReqv4", "dns_opcode", "AXFR-IPv4" }, + { "AXFRReqv6", "dns_opcode", "AXFR-IPv6" }, + { "IXFRReqv4", "dns_opcode", "IXFR-IPv4" }, + { "IXFRReqv6", "dns_opcode", "IXFR-IPv6" }, + /* Domain transfers */ + { "XfrSuccess", "dns_transfer", "success" }, + { "XfrFail", "dns_transfer", "failure" } +}; +static int zonestats_translation_table_length = + STATIC_ARRAY_SIZE (zonestats_translation_table); +/* }}} */ - for (i = 0; i < buffer_size; i++) - { - if (buffer[i] == 0) - return; - if (!isalnum ((int) buffer[i])) - buffer[i] = '_'; - } -} /* void remove_special */ +/* Translation table for the `resstats' values. */ +static const translation_info_t resstats_translation_table[] = /* {{{ */ +{ + /* Generic resolver information */ + { "Queryv4", "dns_query", "IPv4" }, + { "Queryv6", "dns_query", "IPv6" }, + { "Responsev4", "dns_response", "IPv4" }, + { "Responsev6", "dns_response", "IPv6" }, + /* Received response codes */ + { "NXDOMAIN", "dns_rcode", "rx-NXDOMAIN" }, + { "SERVFAIL", "dns_rcode", "rx-SERVFAIL" }, + { "FORMERR", "dns_rcode", "rx-FORMERR" }, + { "OtherError", "dns_rcode", "rx-OTHER" }, + { "EDNS0Fail", "dns_rcode", "rx-EDNS0Fail"}, + /* Received responses */ + { "Mismatch", "dns_response", "mismatch" }, + { "Truncated", "dns_response", "truncated" }, + { "Lame", "dns_response", "lame" }, + { "Retry", "dns_query", "retry" }, +#if 0 + { "GlueFetchv4", "type", "type_instance" }, + { "GlueFetchv6", "type", "type_instance" }, + { "GlueFetchv4Fail", "type", "type_instance" }, + { "GlueFetchv6Fail", "type", "type_instance" }, +#endif + /* DNSSEC information */ + { "ValAttempt", "dns_resolver", "DNSSEC-attempt" }, + { "ValOk", "dns_resolver", "DNSSEC-okay" }, + { "ValNegOk", "dns_resolver", "DNSSEC-negokay" }, + { "ValFail", "dns_resolver", "DNSSEC-fail" } +}; +static int resstats_translation_table_length = + STATIC_ARRAY_SIZE (resstats_translation_table); +/* }}} */ + +/* Translation table for the `memory/summary' values. */ +static const translation_info_t memsummary_translation_table[] = /* {{{ */ +{ + { "TotalUse", "memory", "TotalUse" }, + { "InUse", "memory", "InUse" }, + { "BlockSize", "memory", "BlockSize" }, + { "ContextSize", "memory", "ContextSize" }, + { "Lost", "memory", "Lost" } +}; +static int memsummary_translation_table_length = + STATIC_ARRAY_SIZE (memsummary_translation_table); +/* }}} */ -static void submit_counter(time_t ts, const char *plugin_instance, const char *type, - const char *type_instance, counter_t value) +static void submit (time_t ts, const char *plugin_instance, /* {{{ */ + const char *type, const char *type_instance, value_t value) { value_t values[1]; value_list_t vl = VALUE_LIST_INIT; - values[0].counter = value; + values[0] = value; vl.values = values; vl.values_len = 1; - vl.time = ts == 0 ? time(NULL) : ts; + vl.time = TIME_T_TO_CDTIME_T (ts); sstrncpy(vl.host, hostname_g, sizeof(vl.host)); sstrncpy(vl.plugin, "bind", sizeof(vl.plugin)); if (plugin_instance) { sstrncpy(vl.plugin_instance, plugin_instance, sizeof(vl.plugin_instance)); - remove_special (vl.plugin_instance, sizeof (vl.plugin_instance)); + replace_special (vl.plugin_instance, sizeof (vl.plugin_instance)); } sstrncpy(vl.type, type, sizeof(vl.type)); if (type_instance) { sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance)); - remove_special (vl.plugin_instance, sizeof (vl.plugin_instance)); + replace_special (vl.plugin_instance, sizeof (vl.plugin_instance)); } plugin_dispatch_values(&vl); -} /* void submit_counter */ +} /* }}} void submit */ -static size_t bind_curl_callback (void *buf, size_t size, size_t nmemb, - void *stream) +static size_t bind_curl_callback (void *buf, size_t size, /* {{{ */ + size_t nmemb, void __attribute__((unused)) *stream) { size_t len = size * nmemb; @@ -143,567 +293,1110 @@ static size_t bind_curl_callback (void *buf, size_t size, size_t nmemb, bind_buffer[bind_buffer_fill] = 0; return (len); -} /* size_t bind_curl_callback */ +} /* }}} size_t bind_curl_callback */ + +/* + * Callback, that's called with a translation table. + * (Plugin instance is fixed, type and type instance come from lookup table.) + */ +static int bind_xml_table_callback (const char *name, value_t value, /* {{{ */ + time_t current_time, void *user_data) +{ + translation_table_ptr_t *table = (translation_table_ptr_t *) user_data; + size_t i; + + if (table == NULL) + return (-1); -static int bind_xml_read_counter (xmlDoc *doc, xmlNode *node, - counter_t *ret_value) + for (i = 0; i < table->table_length; i++) + { + if (strcmp (table->table[i].xml_name, name) != 0) + continue; + + submit (current_time, + table->plugin_instance, + table->table[i].type, + table->table[i].type_instance, + value); + break; + } + + return (0); +} /* }}} int bind_xml_table_callback */ + +/* + * Callback, that's used for lists. + * (Plugin instance and type are fixed, xml name is used as type instance.) + */ +static int bind_xml_list_callback (const char *name, /* {{{ */ + value_t value, time_t current_time, void *user_data) +{ + list_info_ptr_t *list_info = (list_info_ptr_t *) user_data; + + if (list_info == NULL) + return (-1); + + submit (current_time, + list_info->plugin_instance, + list_info->type, + /* type instance = */ name, + value); + + return (0); +} /* }}} int bind_xml_list_callback */ + +static int bind_xml_read_derive (xmlDoc *doc, xmlNode *node, /* {{{ */ + derive_t *ret_value) +{ + char *str_ptr; + value_t value; + int status; + + str_ptr = (char *) xmlNodeListGetString (doc, node->xmlChildrenNode, 1); + if (str_ptr == NULL) + { + ERROR ("bind plugin: bind_xml_read_derive: xmlNodeListGetString failed."); + return (-1); + } + + status = parse_value (str_ptr, &value, DS_TYPE_DERIVE); + if (status != 0) + { + ERROR ("bind plugin: Parsing string \"%s\" to derive value failed.", + str_ptr); + return (-1); + } + + *ret_value = value.derive; + return (0); +} /* }}} int bind_xml_read_derive */ + +static int bind_xml_read_gauge (xmlDoc *doc, xmlNode *node, /* {{{ */ + gauge_t *ret_value) { char *str_ptr, *end_ptr; - long long int value; + double value; str_ptr = (char *) xmlNodeListGetString (doc, node->xmlChildrenNode, 1); if (str_ptr == NULL) { - ERROR ("bind plugin: bind_xml_read_int64: xmlNodeListGetString failed."); + ERROR ("bind plugin: bind_xml_read_gauge: xmlNodeListGetString failed."); return (-1); } errno = 0; - value = strtoll (str_ptr, &end_ptr, 10); + value = strtod (str_ptr, &end_ptr); xmlFree(str_ptr); if (str_ptr == end_ptr || errno) { - if (errno && value == LLONG_MIN) - ERROR ("bind plugin: bind_xml_read_int64: strtoll failed with underflow."); - else if (errno && value == LLONG_MAX) - ERROR ("bind plugin: bind_xml_read_int64: strtoll failed with overflow."); + if (errno && (value < 0)) + ERROR ("bind plugin: bind_xml_read_gauge: strtod failed with underflow."); + else if (errno && (value > 0)) + ERROR ("bind plugin: bind_xml_read_gauge: strtod failed with overflow."); else - ERROR ("bind plugin: bind_xml_read_int64: strtoll failed."); + ERROR ("bind plugin: bind_xml_read_gauge: strtod failed."); return (-1); } - *ret_value = value; + *ret_value = (gauge_t) value; return (0); -} /* int bind_xml_read_counter */ +} /* }}} int bind_xml_read_gauge */ -static int bind_xml_read_timestamp (xmlDoc *doc, xmlNode *node, - time_t *ret_value) +static int bind_xml_read_timestamp (const char *xpath_expression, /* {{{ */ + xmlDoc *doc, xmlXPathContext *xpathCtx, time_t *ret_value) { - char *str_ptr, *p; + xmlXPathObject *xpathObj = NULL; + xmlNode *node; + char *str_ptr; + char *tmp; struct tm tm; + xpathObj = xmlXPathEvalExpression (BAD_CAST xpath_expression, xpathCtx); + if (xpathObj == NULL) + { + ERROR ("bind plugin: Unable to evaluate XPath expression `%s'.", + xpath_expression); + return (-1); + } + + if ((xpathObj->nodesetval == NULL) || (xpathObj->nodesetval->nodeNr < 1)) + { + xmlXPathFreeObject (xpathObj); + return (-1); + } + + if (xpathObj->nodesetval->nodeNr != 1) + { + NOTICE ("bind plugin: Evaluating the XPath expression `%s' returned " + "%i nodes. Only handling the first one.", + xpath_expression, xpathObj->nodesetval->nodeNr); + } + + node = xpathObj->nodesetval->nodeTab[0]; + + if (node->xmlChildrenNode == NULL) + { + ERROR ("bind plugin: bind_xml_read_timestamp: " + "node->xmlChildrenNode == NULL"); + xmlXPathFreeObject (xpathObj); + return (-1); + } + str_ptr = (char *) xmlNodeListGetString (doc, node->xmlChildrenNode, 1); if (str_ptr == NULL) { - ERROR ("bind plugin: bind_xml_read_int: xmlNodeListGetString failed."); + ERROR ("bind plugin: bind_xml_read_timestamp: xmlNodeListGetString failed."); + xmlXPathFreeObject (xpathObj); return (-1); } - memset(&tm, 0, sizeof(tm)); - p = strptime(str_ptr, "%Y-%m-%dT%T", &tm); + memset (&tm, 0, sizeof(tm)); + tmp = strptime (str_ptr, "%Y-%m-%dT%T", &tm); xmlFree(str_ptr); - if (p == NULL) + if (tmp == NULL) { ERROR ("bind plugin: bind_xml_read_timestamp: strptime failed."); + xmlXPathFreeObject (xpathObj); return (-1); } - *ret_value = timegm(&tm); + *ret_value = mktime(&tm); + + xmlXPathFreeObject (xpathObj); return (0); -} /* int bind_xml_read_timestamp */ +} /* }}} int bind_xml_read_timestamp */ -/* Bind 9.5.x */ -static int bind_xml_stats_v1(xmlDoc *doc, xmlXPathContext *xpathCtx, xmlNode *statsnode) +/* + * bind_parse_generic_name_value + * + * Reads statistics in the form: + * + * QUERY + * 123 + * + */ +static int bind_parse_generic_name_value (const char *xpath_expression, /* {{{ */ + list_callback_t list_callback, + void *user_data, + xmlDoc *doc, xmlXPathContext *xpathCtx, + time_t current_time, int ds_type) { - xmlXPathObjectPtr xpathObj = NULL; - time_t current_time; + xmlXPathObject *xpathObj = NULL; + int num_entries; int i; - xpathCtx->node = statsnode; + xpathObj = xmlXPathEvalExpression(BAD_CAST xpath_expression, xpathCtx); + if (xpathObj == NULL) + { + ERROR("bind plugin: Unable to evaluate XPath expression `%s'.", + xpath_expression); + return (-1); + } - /* server/boot-time -- detect possible counter-resets - * Type: XML DateTime */ - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/boot-time", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1-boottime"); - return -1; - } else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) { - char *boot_tm = (char *) xmlNodeListGetString (doc, xpathObj->nodesetval->nodeTab[0]->xmlChildrenNode, 1); - if (srv_boot_ts == NULL || strcmp(srv_boot_ts, boot_tm) != 0) { - xmlFree(srv_boot_ts); - srv_boot_ts = boot_tm; - /* TODO: tell collectd that our counters got reset ... */ - DEBUG ("bind plugin: Statv1: Server boot time: %s (%d nodes)", srv_boot_ts, xpathObj->nodesetval->nodeNr); - } else - xmlFree(boot_tm); + num_entries = 0; + /* Iterate over all matching nodes. */ + for (i = 0; xpathObj->nodesetval && (i < xpathObj->nodesetval->nodeNr); i++) + { + xmlNode *name_node = NULL; + xmlNode *counter = NULL; + xmlNode *parent; + xmlNode *child; + + parent = xpathObj->nodesetval->nodeTab[i]; + DEBUG ("bind plugin: bind_parse_generic_name_value: parent->name = %s;", + (char *) parent->name); + + /* Iterate over all child nodes. */ + for (child = parent->xmlChildrenNode; + child != NULL; + child = child->next) + { + if (child->type != XML_ELEMENT_NODE) + continue; + + if (xmlStrcmp (BAD_CAST "name", child->name) == 0) + name_node = child; + else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) + counter = child; + } + + if ((name_node != NULL) && (counter != NULL)) + { + char *name = (char *) xmlNodeListGetString (doc, + name_node->xmlChildrenNode, 1); + value_t value; + int status; + + if (ds_type == DS_TYPE_GAUGE) + status = bind_xml_read_gauge (doc, counter, &value.gauge); + else + status = bind_xml_read_derive (doc, counter, &value.derive); + if (status != 0) + continue; + + status = (*list_callback) (name, value, current_time, user_data); + if (status == 0) + num_entries++; + + xmlFree (name); + } } + + DEBUG ("bind plugin: Found %d %s for XPath expression `%s'", + num_entries, (num_entries == 1) ? "entry" : "entries", + xpath_expression); + xmlXPathFreeObject(xpathObj); - /* server/current-time -- parse our time-stamp - * Type: XML DateTime */ - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/current-time", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1-currenttime"); - return -1; - } else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) { - if (bind_xml_read_timestamp(doc, xpathObj->nodesetval->nodeTab[0], ¤t_time)) - current_time = time(NULL); - else - DEBUG ("bind plugin: Statv1: Server current time: %ld (%d nodes)", current_time, xpathObj->nodesetval->nodeNr); + return (0); +} /* }}} int bind_parse_generic_name_value */ + +/* + * bind_parse_generic_value_list + * + * Reads statistics in the form: + * + * 123 + * 234 + * 345 + * : + * + */ +static int bind_parse_generic_value_list (const char *xpath_expression, /* {{{ */ + list_callback_t list_callback, + void *user_data, + xmlDoc *doc, xmlXPathContext *xpathCtx, + time_t current_time, int ds_type) +{ + xmlXPathObject *xpathObj = NULL; + int num_entries; + int i; + + xpathObj = xmlXPathEvalExpression(BAD_CAST xpath_expression, xpathCtx); + if (xpathObj == NULL) + { + ERROR("bind plugin: Unable to evaluate XPath expression `%s'.", + xpath_expression); + return (-1); } - xmlXPathFreeObject(xpathObj); - /* requests/opcode -- [name] = [counter] - * Variables: QUERY, IQUERY, NOTIFY, UPDATE, ... */ - if (use_requests) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/requests/opcode", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1-currenttime"); - return -1; - } else for (i = 0; xpathObj->nodesetval && i < xpathObj->nodesetval->nodeNr; i++) { - xmlNode *name = NULL, *counter = NULL, *child; - for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; child != NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - name = child; - else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) - counter = child; - if (name && counter) { - char *tinst = (char *) xmlNodeListGetString (doc, name->xmlChildrenNode, 1); - counter_t val; - if (!bind_xml_read_counter(doc, counter, &val)) - submit_counter(current_time, NULL, "dns_opcode", tinst, val); - xmlFree(tinst); - } - } - DEBUG ("bind plugin: Statv1: Found %d entries for requests/opcode", xpathObj->nodesetval->nodeNr); - xmlXPathFreeObject(xpathObj); - } - - /* queries-in/rdtype -- [name] = [counter] - * Variables: RESERVED0, A, NS, CNAME, SOA, MR, PTR, HINFO, MX, TXT, RP, X25, PX, AAAA, LOC, - * SRV, NAPTR, A6, DS, RRSIG, NSEC, DNSKEY, SPF, TKEY, IXFR, AXFR, ANY, ..., Others */ - if (use_rrqueries_in) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/queries-in/rdtype", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1-currenttime"); - return -1; - } else for (i = 0; xpathObj->nodesetval && i < xpathObj->nodesetval->nodeNr; i++) { - xmlNode *name = NULL, *counter = NULL, *child; - for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; child != NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - name = child; - else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) - counter = child; - if (name && counter) { - char *tinst = (char *) xmlNodeListGetString (doc, name->xmlChildrenNode, 1); - counter_t val; - if (!bind_xml_read_counter(doc, counter, &val)) - submit_counter(current_time, NULL, "dns_qtype", tinst, val); - xmlFree(tinst); - } - } - DEBUG ("bind plugin: Statv1: Found %d entries for queries-in/rdtype", xpathObj->nodesetval->nodeNr); - xmlXPathFreeObject(xpathObj); - } - - /* nsstats -- [$name] = [$value] */ - /* Variables: Requestv4, Requestv6, ReqEdns0, ReqBadEDNSVer, ReqTSIG, ReqSIG0, ReqBadSIG, ReqTCP, - * AuthQryRej, RecQryRej, XfrRej, UpdateRej, Response, TruncatedResp, RespEDNS0, RespTSIG, - * RespSIG0, QrySuccess, QryAuthAns, QryNoauthAns, QryReferral, QryNxrrset, QrySERVFAIL, - * QryFORMERR, QryNXDOMAIN, QryRecursion, QryDuplicate, QryDropped, QryFailure, XfrReqDone, - * UpdateReqFwd, UpdateRespFwd, UpdateFwdFail, UpdateDone, UpdateFail, UpdateBadPrereq */ - if (use_updates || use_query_results || use_requests) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/nsstats", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1-nsstats"); - return -1; - } else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) { - xmlNode *child; - counter_t val; - int n = 0; - for (child = xpathObj->nodesetval->nodeTab[0]->xmlChildrenNode; child != NULL; child = child->next, n++) - if (child->type == XML_ELEMENT_NODE && !bind_xml_read_counter(doc, child, &val)) { - if (use_updates && (strncmp("Update", (char *)child->name, 6) == 0 || strcmp("XfrReqDone", (char *)child->name) == 0)) - submit_counter(current_time, NULL, "dns_update", (char *)child->name, val); - else if (use_query_results && strncmp("Qry", (char *)child->name, 3) == 0) - submit_counter(current_time, NULL, "dns_rcode", (char *)child->name, val); - else if (use_query_results && (strncmp("Resp", (char *)child->name, 4) == 0 || - strcmp("AuthQryRej", (char *)child->name) == 0 || strcmp("RecQryRej", (char *)child->name) == 0 || - strcmp("XfrRej", (char *)child->name) == 0 || strcmp("TruncatedResp", (char *)child->name) == 0)) - submit_counter(current_time, NULL, "dns_rcode", (char *)child->name, val); - else if (use_requests && strncmp("Req", (char *)child->name, 3) == 0) - submit_counter(current_time, NULL, "dns_request", (char *)child->name, val); - } - DEBUG ("bind plugin: Statv1: Found %d entries for %d nsstats", n, xpathObj->nodesetval->nodeNr); - } - xmlXPathFreeObject(xpathObj); - } - - /* zonestats -- [$name] = [$value] */ - /* Variables: NotifyOutv4, NotifyOutv6, NotifyInv4, NotifyInv6, NotifyRej, SOAOutv4, SOAOutv6, - * AXFRReqv4, AXFRReqv6, IXFRReqv4, IXFRReqv6, XfrSuccess, XfrFail */ - if (use_zone_maint) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/zonestats", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1-zonestats"); - return -1; - } else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) { - xmlNode *child; - counter_t val; - int n = 0; - for (child = xpathObj->nodesetval->nodeTab[0]->xmlChildrenNode; child != NULL; child = child->next, n++) - if (child->type == XML_ELEMENT_NODE) { - if (!bind_xml_read_counter(doc, child, &val)) - submit_counter(current_time, NULL, "dns_zops", (char *)child->name, val); - } - DEBUG ("bind plugin: Statv1: Found %d entries for %d zonestats", n, xpathObj->nodesetval->nodeNr); - } - xmlXPathFreeObject(xpathObj); - } - - /* resstats -- [$name] = [$value] */ - /* Variables: Queryv4, Queryv6, Responsev4, Responsev6, NXDOMAIN, SERVFAIL, FORMERR, OtherError, - * EDNS0Fail, Mismatch, Truncated, Lame, Retry, GlueFetchv4, GlueFetchv6, GlueFetchv4Fail, - * GlueFetchv6Fail, ValAttempt, ValOk, ValNegOk, ValFail */ - if (use_resolver) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/resstats", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1-resstats"); - return -1; - } else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) { - xmlNode *child; - counter_t val; - int n = 0; - for (child = xpathObj->nodesetval->nodeTab[0]->xmlChildrenNode; child != NULL; child = child->next, n++) - if (child->type == XML_ELEMENT_NODE) { - if (!bind_xml_read_counter(doc, child, &val)) - submit_counter(current_time, NULL, "dns_resolver", (char *)child->name, val); - } - DEBUG ("bind plugin: Statv1: Found %d entries for %d resstats", n, xpathObj->nodesetval->nodeNr); + num_entries = 0; + /* Iterate over all matching nodes. */ + for (i = 0; xpathObj->nodesetval && (i < xpathObj->nodesetval->nodeNr); i++) + { + xmlNode *child; + + /* Iterate over all child nodes. */ + for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; + child != NULL; + child = child->next) + { + char *node_name; + value_t value; + int status; + + if (child->type != XML_ELEMENT_NODE) + continue; + + node_name = (char *) child->name; + + if (ds_type == DS_TYPE_GAUGE) + status = bind_xml_read_gauge (doc, child, &value.gauge); + else + status = bind_xml_read_derive (doc, child, &value.derive); + if (status != 0) + continue; + + status = (*list_callback) (node_name, value, current_time, user_data); + if (status == 0) + num_entries++; } - xmlXPathFreeObject(xpathObj); } - return 0; -} /* int bind_xml_stats_v1 */ -/* Bind 9.6.x */ -static int bind_xml_stats_v2(xmlDoc *doc, xmlXPathContext *xpathCtx, xmlNode *statsnode) + DEBUG ("bind plugin: Found %d %s for XPath expression `%s'", + num_entries, (num_entries == 1) ? "entry" : "entries", + xpath_expression); + + xmlXPathFreeObject(xpathObj); + + return (0); +} /* }}} int bind_parse_generic_value_list */ + +static int bind_xml_stats_handle_zone (int version, xmlDoc *doc, /* {{{ */ + xmlXPathContext *path_ctx, xmlNode *node, cb_view_t *view, + time_t current_time) +{ + xmlXPathObject *path_obj; + char *zone_name = NULL; + int i; + size_t j; + + path_obj = xmlXPathEvalExpression (BAD_CAST "name", path_ctx); + if (path_obj == NULL) + { + ERROR ("bind plugin: xmlXPathEvalExpression failed."); + return (-1); + } + + for (i = 0; path_obj->nodesetval && (i < path_obj->nodesetval->nodeNr); i++) + { + zone_name = (char *) xmlNodeListGetString (doc, + path_obj->nodesetval->nodeTab[i]->xmlChildrenNode, 1); + if (zone_name != NULL) + break; + } + + if (zone_name == NULL) + { + ERROR ("bind plugin: Could not determine zone name."); + xmlXPathFreeObject (path_obj); + return (-1); + } + + for (j = 0; j < view->zones_num; j++) + { + if (strcasecmp (zone_name, view->zones[j]) == 0) + break; + } + + xmlFree (zone_name); + zone_name = NULL; + + if (j >= views_num) + { + xmlXPathFreeObject (path_obj); + return (0); + } + + zone_name = view->zones[j]; + + DEBUG ("bind plugin: bind_xml_stats_handle_zone: Found zone `%s'.", + zone_name); + + { /* Parse the tag {{{ */ + char plugin_instance[DATA_MAX_NAME_LEN]; + translation_table_ptr_t table_ptr = + { + nsstats_translation_table, + nsstats_translation_table_length, + plugin_instance + }; + + ssnprintf (plugin_instance, sizeof (plugin_instance), "%s-zone-%s", + view->name, zone_name); + + bind_parse_generic_value_list (/* xpath = */ "counters", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, path_ctx, current_time, DS_TYPE_COUNTER); + } /* }}} */ + + xmlXPathFreeObject (path_obj); + + return (0); +} /* }}} int bind_xml_stats_handle_zone */ + +static int bind_xml_stats_search_zones (int version, xmlDoc *doc, /* {{{ */ + xmlXPathContext *path_ctx, xmlNode *node, cb_view_t *view, + time_t current_time) { - xmlXPathObjectPtr xpathObj = NULL; - time_t current_time; + xmlXPathObject *zone_nodes = NULL; + xmlXPathContext *zone_path_context; int i; + zone_path_context = xmlXPathNewContext (doc); + if (zone_path_context == NULL) + { + ERROR ("bind plugin: xmlXPathNewContext failed."); + return (-1); + } + + zone_nodes = xmlXPathEvalExpression (BAD_CAST "zones/zone", path_ctx); + if (zone_nodes == NULL) + { + ERROR ("bind plugin: Cannot find any tags."); + xmlXPathFreeContext (zone_path_context); + return (-1); + } + + for (i = 0; i < zone_nodes->nodesetval->nodeNr; i++) + { + xmlNode *node; + + node = zone_nodes->nodesetval->nodeTab[i]; + assert (node != NULL); + + zone_path_context->node = node; + + bind_xml_stats_handle_zone (version, doc, zone_path_context, node, view, + current_time); + } + + xmlXPathFreeObject (zone_nodes); + xmlXPathFreeContext (zone_path_context); + return (0); +} /* }}} int bind_xml_stats_search_zones */ + +static int bind_xml_stats_handle_view (int version, xmlDoc *doc, /* {{{ */ + xmlXPathContext *path_ctx, xmlNode *node, time_t current_time) +{ + xmlXPathObject *path_obj; + char *view_name = NULL; + cb_view_t *view; + int i; + size_t j; + + path_obj = xmlXPathEvalExpression (BAD_CAST "name", path_ctx); + if (path_obj == NULL) + { + ERROR ("bind plugin: xmlXPathEvalExpression failed."); + return (-1); + } + + for (i = 0; path_obj->nodesetval && (i < path_obj->nodesetval->nodeNr); i++) + { + view_name = (char *) xmlNodeListGetString (doc, + path_obj->nodesetval->nodeTab[i]->xmlChildrenNode, 1); + if (view_name != NULL) + break; + } + + if (view_name == NULL) + { + ERROR ("bind plugin: Could not determine view name."); + xmlXPathFreeObject (path_obj); + return (-1); + } + + for (j = 0; j < views_num; j++) + { + if (strcasecmp (view_name, views[j].name) == 0) + break; + } + + xmlFree (view_name); + xmlXPathFreeObject (path_obj); + + view_name = NULL; + path_obj = NULL; + + if (j >= views_num) + return (0); + + view = views + j; + + DEBUG ("bind plugin: bind_xml_stats_handle_view: Found view `%s'.", + view->name); + + if (view->qtypes != 0) /* {{{ */ + { + char plugin_instance[DATA_MAX_NAME_LEN]; + list_info_ptr_t list_info = + { + plugin_instance, + /* type = */ "dns_qtype" + }; + + ssnprintf (plugin_instance, sizeof (plugin_instance), "%s-qtypes", + view->name); + + bind_parse_generic_name_value (/* xpath = */ "rdtype", + /* callback = */ bind_xml_list_callback, + /* user_data = */ &list_info, + doc, path_ctx, current_time, DS_TYPE_COUNTER); + } /* }}} */ + + if (view->resolver_stats != 0) /* {{{ */ + { + char plugin_instance[DATA_MAX_NAME_LEN]; + translation_table_ptr_t table_ptr = + { + resstats_translation_table, + resstats_translation_table_length, + plugin_instance + }; + + ssnprintf (plugin_instance, sizeof (plugin_instance), + "%s-resolver_stats", view->name); + + bind_parse_generic_name_value ("resstat", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, path_ctx, current_time, DS_TYPE_COUNTER); + } /* }}} */ + + /* Record types in the cache */ + if (view->cacherrsets != 0) /* {{{ */ + { + char plugin_instance[DATA_MAX_NAME_LEN]; + list_info_ptr_t list_info = + { + plugin_instance, + /* type = */ "dns_qtype_cached" + }; + + ssnprintf (plugin_instance, sizeof (plugin_instance), "%s-cache_rr_sets", + view->name); + + bind_parse_generic_name_value (/* xpath = */ "cache/rrset", + /* callback = */ bind_xml_list_callback, + /* user_data = */ &list_info, + doc, path_ctx, current_time, DS_TYPE_GAUGE); + } /* }}} */ + + if (view->zones_num > 0) + bind_xml_stats_search_zones (version, doc, path_ctx, node, view, + current_time); + + return (0); +} /* }}} int bind_xml_stats_handle_view */ + +static int bind_xml_stats_search_views (int version, xmlDoc *doc, /* {{{ */ + xmlXPathContext *xpathCtx, xmlNode *statsnode, time_t current_time) +{ + xmlXPathObject *view_nodes = NULL; + xmlXPathContext *view_path_context; + int i; + + view_path_context = xmlXPathNewContext (doc); + if (view_path_context == NULL) + { + ERROR ("bind plugin: xmlXPathNewContext failed."); + return (-1); + } + + view_nodes = xmlXPathEvalExpression (BAD_CAST "views/view", xpathCtx); + if (view_nodes == NULL) + { + ERROR ("bind plugin: Cannot find any tags."); + xmlXPathFreeContext (view_path_context); + return (-1); + } + + for (i = 0; i < view_nodes->nodesetval->nodeNr; i++) + { + xmlNode *node; + + node = view_nodes->nodesetval->nodeTab[i]; + assert (node != NULL); + + view_path_context->node = node; + + bind_xml_stats_handle_view (version, doc, view_path_context, node, + current_time); + } + + xmlXPathFreeObject (view_nodes); + xmlXPathFreeContext (view_path_context); + return (0); +} /* }}} int bind_xml_stats_search_views */ + +static int bind_xml_stats (int version, xmlDoc *doc, /* {{{ */ + xmlXPathContext *xpathCtx, xmlNode *statsnode) +{ + time_t current_time = 0; + int status; + xpathCtx->node = statsnode; - /* server/boot-time -- detect possible counter-resets - * Type: XML DateTime */ - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/boot-time", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2-boottime"); - return -1; - } else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) { - char *boot_tm = (char *) xmlNodeListGetString (doc, xpathObj->nodesetval->nodeTab[0]->xmlChildrenNode, 1); - if (srv_boot_ts == NULL || strcmp(srv_boot_ts, boot_tm) != 0) { - xmlFree(srv_boot_ts); - srv_boot_ts = boot_tm; - /* TODO: tell collectd that our counters got reset ... */ - DEBUG ("bind plugin: Statv2: Server boot time: %s (%d nodes)", srv_boot_ts, xpathObj->nodesetval->nodeNr); - } else - xmlFree(boot_tm); + /* TODO: Check `server/boot-time' to recognize server restarts. */ + + status = bind_xml_read_timestamp ("server/current-time", + doc, xpathCtx, ¤t_time); + if (status != 0) + { + ERROR ("bind plugin: Reading `server/current-time' failed."); + return (-1); + } + DEBUG ("bind plugin: Current server time is %i.", (int) current_time); + + /* XPath: server/requests/opcode + * Variables: QUERY, IQUERY, NOTIFY, UPDATE, ... + * Layout: + * + * A + * 1 + * + * : + */ + if (global_opcodes != 0) + { + list_info_ptr_t list_info = + { + /* plugin instance = */ "global-opcodes", + /* type = */ "dns_opcode" + }; + + bind_parse_generic_name_value (/* xpath = */ "server/requests/opcode", + /* callback = */ bind_xml_list_callback, + /* user_data = */ &list_info, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); } - xmlXPathFreeObject(xpathObj); - /* server/current-time -- parse our time-stamp - * Type: XML DateTime */ - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/current-time", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2-currenttime"); - return -1; - } else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) { - if (bind_xml_read_timestamp(doc, xpathObj->nodesetval->nodeTab[0], ¤t_time)) - current_time = time(NULL); + /* XPath: server/queries-in/rdtype + * Variables: RESERVED0, A, NS, CNAME, SOA, MR, PTR, HINFO, MX, TXT, RP, + * X25, PX, AAAA, LOC, SRV, NAPTR, A6, DS, RRSIG, NSEC, DNSKEY, + * SPF, TKEY, IXFR, AXFR, ANY, ..., Others + * Layout: + * + * A + * 1 + * + * : + */ + if (global_qtypes != 0) + { + list_info_ptr_t list_info = + { + /* plugin instance = */ "global-qtypes", + /* type = */ "dns_qtype" + }; + + bind_parse_generic_name_value (/* xpath = */ "server/queries-in/rdtype", + /* callback = */ bind_xml_list_callback, + /* user_data = */ &list_info, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); + } + + /* XPath: server/nsstats, server/nsstat + * Variables: Requestv4, Requestv6, ReqEdns0, ReqBadEDNSVer, ReqTSIG, + * ReqSIG0, ReqBadSIG, ReqTCP, AuthQryRej, RecQryRej, XfrRej, + * UpdateRej, Response, TruncatedResp, RespEDNS0, RespTSIG, + * RespSIG0, QrySuccess, QryAuthAns, QryNoauthAns, QryReferral, + * QryNxrrset, QrySERVFAIL, QryFORMERR, QryNXDOMAIN, QryRecursion, + * QryDuplicate, QryDropped, QryFailure, XfrReqDone, UpdateReqFwd, + * UpdateRespFwd, UpdateFwdFail, UpdateDone, UpdateFail, + * UpdateBadPrereq + * Layout v1: + * + * 1 + * 0 + * : + * + * Layout v2: + * + * Requestv4 + * 1 + * + * + * Requestv6 + * 0 + * + * : + */ + if (global_server_stats) + { + translation_table_ptr_t table_ptr = + { + nsstats_translation_table, + nsstats_translation_table_length, + /* plugin_instance = */ "global-server_stats" + }; + + if (version == 1) + { + bind_parse_generic_value_list ("server/nsstats", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); + } else - DEBUG ("bind plugin: Statv2: Server current time: %ld (%d nodes)", current_time, xpathObj->nodesetval->nodeNr); + { + bind_parse_generic_name_value ("server/nsstat", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); + } } - xmlXPathFreeObject(xpathObj); - /* requests/opcode -- [name] = [counter] - * Variables: QUERY, ... */ - if (use_requests) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/requests/opcode", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2-opcode"); - return -1; - } else for (i = 0; xpathObj->nodesetval && i < xpathObj->nodesetval->nodeNr; i++) { - xmlNode *name = NULL, *counter = NULL, *child; - for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; child != NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - name = child; - else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) - counter = child; - if (name && counter) { - char *tinst = (char *) xmlNodeListGetString (doc, name->xmlChildrenNode, 1); - counter_t val; - if (!bind_xml_read_counter(doc, counter, &val)) - submit_counter(current_time, NULL, "dns_opcode", tinst, val); - xmlFree(tinst); - } - } - DEBUG ("bind plugin: Statv2: Found %d entries for requests/opcode", xpathObj->nodesetval->nodeNr); - xmlXPathFreeObject(xpathObj); - } - - /* queries-in/rdtype -- [name] = [counter] - * Variables: A, NS, SOA, PTR, MX, TXT, SRV, ... */ - if (use_rrqueries_in) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/queries-in/rdtype", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2-rdtype"); - return -1; - } else for (i = 0; xpathObj->nodesetval && i < xpathObj->nodesetval->nodeNr; i++) { - xmlNode *name = NULL, *counter = NULL, *child; - for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; child != NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - name = child; - else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) - counter = child; - if (name && counter) { - char *tinst = (char *) xmlNodeListGetString (doc, name->xmlChildrenNode, 1); - counter_t val; - if (!bind_xml_read_counter(doc, counter, &val)) - submit_counter(current_time, NULL, "dns_qtype", tinst, val); - xmlFree(tinst); - } + /* XPath: server/zonestats, server/zonestat + * Variables: NotifyOutv4, NotifyOutv6, NotifyInv4, NotifyInv6, NotifyRej, + * SOAOutv4, SOAOutv6, AXFRReqv4, AXFRReqv6, IXFRReqv4, IXFRReqv6, + * XfrSuccess, XfrFail + * Layout v1: + * + * 0 + * 0 + * : + * + * Layout v2: + * + * NotifyOutv4 + * 0 + * + * + * NotifyOutv6 + * 0 + * + * : + */ + if (global_zone_maint_stats) + { + translation_table_ptr_t table_ptr = + { + zonestats_translation_table, + zonestats_translation_table_length, + /* plugin_instance = */ "global-zone_maint_stats" + }; + + if (version == 1) + { + bind_parse_generic_value_list ("server/zonestats", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); } - DEBUG ("bind plugin: Statv2: Found %d entries for queries-in/rdtype", xpathObj->nodesetval->nodeNr); - xmlXPathFreeObject(xpathObj); - } - - /* nsstat -- [name] = [counter] - * Variables: Requestv4, Requestv6, ReqEdns0, ReqBadEDNSVer, ReqTSIG, ReqSIG0, ReqBadSIG, ReqTCP, - * AuthQryRej, RecQryRej, XfrRej, UpdateRej, Response, TruncatedResp, RespEDNS0, RespTSIG, - * RespSIG0, QrySuccess, QryAuthAns, QryNoauthAns, QryReferral, QryNxrrset, QrySERVFAIL, - * QryFORMERR, QryNXDOMAIN, QryRecursion, QryDuplicate, QryDropped, QryFailure, XfrReqDone, - * UpdateReqFwd, UpdateRespFwd, UpdateFwdFail, UpdateDone, UpdateFail, UpdateBadPrereq, */ - if (use_updates || use_query_results || use_requests) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/nsstat", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2-nsstat"); - return -1; - } else for (i = 0; xpathObj->nodesetval && i < xpathObj->nodesetval->nodeNr; i++) { - xmlNode *name = NULL, *counter = NULL, *child; - for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; child != NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - name = child; - else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) - counter = child; - if (name && counter) { - char *tinst = (char *) xmlNodeListGetString (doc, name->xmlChildrenNode, 1); - counter_t val; - if (!bind_xml_read_counter(doc, counter, &val)) { - if (use_updates && (strncmp("Update", tinst, 6) == 0 || strcmp("XfrReqDone", tinst) == 0)) - submit_counter(current_time, NULL, "dns_update", tinst, val); - else if (use_query_results && strncmp("Qry", tinst, 3) == 0) - submit_counter(current_time, NULL, "dns_rcode", tinst, val); - else if (use_query_results && (strncmp("Resp", tinst, 4) == 0 || strcmp("AuthQryRej", tinst) == 0 || - strcmp("RecQryRej", tinst) == 0 || strcmp("XfrRej", tinst) == 0 || strcmp("TruncatedResp", tinst) == 0)) - submit_counter(current_time, NULL, "dns_rcode", tinst, val); - else if (use_requests && strncmp("Req", tinst, 3) == 0) - submit_counter(current_time, NULL, "dns_request", tinst, val); - } - xmlFree(tinst); - } + else + { + bind_parse_generic_name_value ("server/zonestat", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); } - DEBUG ("bind plugin: Statv2: Found %d entries for nsstat", xpathObj->nodesetval->nodeNr); - xmlXPathFreeObject(xpathObj); - } - - /* zonestat -- [name] = [counter] - * Variables: NotifyOutv4, NotifyOutv6, NotifyInv4, NotifyInv6, NotifyRej, SOAOutv4, SOAOutv6, - * AXFRReqv4, AXFRReqv6, IXFRReqv4, IXFRReqv6, XfrSuccess, XfrFail */ - if (use_zone_maint) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "server/zonestat", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2-zonestat"); - return -1; - } else for (i = 0; xpathObj->nodesetval && i < xpathObj->nodesetval->nodeNr; i++) { - xmlNode *name = NULL, *counter = NULL, *child; - for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; child != NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - name = child; - else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) - counter = child; - if (name && counter) { - char *tinst = (char *) xmlNodeListGetString (doc, name->xmlChildrenNode, 1); - counter_t val; - if (!bind_xml_read_counter(doc, counter, &val)) - submit_counter(current_time, NULL, "dns_zops", tinst, val); - xmlFree(tinst); - } + } + + /* XPath: server/resstats + * Variables: Queryv4, Queryv6, Responsev4, Responsev6, NXDOMAIN, SERVFAIL, + * FORMERR, OtherError, EDNS0Fail, Mismatch, Truncated, Lame, + * Retry, GlueFetchv4, GlueFetchv6, GlueFetchv4Fail, + * GlueFetchv6Fail, ValAttempt, ValOk, ValNegOk, ValFail + * Layout v1: + * + * 0 + * 0 + * : + * + * Layout v2: + * + * Queryv4 + * 0 + * + * + * Queryv6 + * 0 + * + * : + */ + if (global_resolver_stats != 0) + { + translation_table_ptr_t table_ptr = + { + resstats_translation_table, + resstats_translation_table_length, + /* plugin_instance = */ "global-resolver_stats" + }; + + if (version == 1) + { + bind_parse_generic_value_list ("server/resstats", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); } - DEBUG ("bind plugin: Statv2: Found %d entries for zonestat", xpathObj->nodesetval->nodeNr); - xmlXPathFreeObject(xpathObj); - } - - /* WARNING: per-view only: views/view/resstat, view-name as plugin-instance */ - /* resstat -- [name] = [counter] - * Variables: Queryv4, Queryv6, Responsev4, Responsev6, NXDOMAIN, SERVFAIL, FORMERR, OtherError, - * EDNS0Fail, Mismatch, Truncated, Lame, Retry, GlueFetchv4, GlueFetchv6, GlueFetchv4Fail, - * GlueFetchv6Fail, ValAttempt, ValOk, ValNegOk, ValFail */ - if (use_resolver) { - if ((xpathObj = xmlXPathEvalExpression(BAD_CAST "views/view", xpathCtx)) == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2-view"); - return -1; - } else for (i = 0; xpathObj->nodesetval && i < xpathObj->nodesetval->nodeNr; i++) { - char *zname = NULL; - xmlNode *name = NULL, *counter = NULL, *rchild, *child; - int n = 0; - for (child = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; child != NULL && zname == NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - zname = (char *) xmlNodeListGetString (doc, child->xmlChildrenNode, 1); - if (!zname || strcmp("_bind", zname) == 0) - continue; /* Unnamed zone?? */ - /* else TODO: allow zone filtering */ - for (rchild = xpathObj->nodesetval->nodeTab[i]->xmlChildrenNode; rchild != NULL; rchild = rchild->next, n++) - if (xmlStrcmp (BAD_CAST "resstat", rchild->name) == 0) { - for (child = rchild->xmlChildrenNode; child != NULL; child = child->next) - if (xmlStrcmp (BAD_CAST "name", child->name) == 0) - name = child; - else if (xmlStrcmp (BAD_CAST "counter", child->name) == 0) - counter = child; - if (name && counter) { - char *tinst = (char *) xmlNodeListGetString (doc, name->xmlChildrenNode, 1); - counter_t val; - if (!bind_xml_read_counter(doc, counter, &val)) - submit_counter(current_time, zname, "dns_resolver", tinst, val); - xmlFree(tinst); - } - } - DEBUG ("bind plugin: Statv2: Found %d entries for view %s", n, zname); - xmlFree(zname); + else + { + bind_parse_generic_name_value ("server/resstat", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, xpathCtx, current_time, DS_TYPE_COUNTER); } - xmlXPathFreeObject(xpathObj); } + + /* XPath: memory/summary + * Variables: TotalUse, InUse, BlockSize, ContextSize, Lost + * Layout: v2: + * + * 6587096 + * 1345424 + * 5505024 + * 3732456 + * 0 + * + */ + if (global_memory_stats != 0) + { + translation_table_ptr_t table_ptr = + { + memsummary_translation_table, + memsummary_translation_table_length, + /* plugin_instance = */ "global-memory_stats" + }; + + bind_parse_generic_value_list ("memory/summary", + /* callback = */ bind_xml_table_callback, + /* user_data = */ &table_ptr, + doc, xpathCtx, current_time, DS_TYPE_GAUGE); + } + + if (views_num > 0) + bind_xml_stats_search_views (version, doc, xpathCtx, statsnode, + current_time); + return 0; -} /* int bind_xml_stats_v2 */ +} /* }}} int bind_xml_stats */ -static int bind_xml (const char *data) +static int bind_xml (const char *data) /* {{{ */ { xmlDoc *doc = NULL; - xmlXPathContextPtr xpathCtx = NULL; - xmlXPathObjectPtr xpathObj = NULL; + xmlXPathContext *xpathCtx = NULL; + xmlXPathObject *xpathObj = NULL; int ret = -1; + int i; - do + doc = xmlParseMemory (data, strlen (data)); + if (doc == NULL) { - doc = xmlParseMemory (data, strlen (data)); - if (doc == NULL) { - ERROR ("bind plugin: xmlParseMemory failed."); - break; - } + ERROR ("bind plugin: xmlParseMemory failed."); + return (-1); + } - if ((xpathCtx = xmlXPathNewContext(doc)) == NULL) { - ERROR ("bind plugin: xmlXPathNewContext failed."); - break; - } + xpathCtx = xmlXPathNewContext (doc); + if (xpathCtx == NULL) + { + ERROR ("bind plugin: xmlXPathNewContext failed."); + xmlFreeDoc (doc); + return (-1); + } - /* Look for /isc/bind/statistics[@version='1.0'] */ - xpathObj = xmlXPathEvalExpression(BAD_CAST "/isc[@version='1.0']/bind/statistics[@version='1.0']", xpathCtx); - if (xpathObj == NULL) - { - ERROR("bind plugin: unable to evaluate XPath expression StatsV1"); - break; - } - else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) - { - /* We have Bind-9.5.x */ - ret = bind_xml_stats_v1(doc, xpathCtx, xpathObj->nodesetval->nodeTab[0]); - break; - } + xpathObj = xmlXPathEvalExpression (BAD_CAST "/isc/bind/statistics", xpathCtx); + if (xpathObj == NULL) + { + ERROR ("bind plugin: Cannot find the tag."); + xmlXPathFreeContext (xpathCtx); + xmlFreeDoc (doc); + return (-1); + } + else if (xpathObj->nodesetval == NULL) + { + ERROR ("bind plugin: xmlXPathEvalExpression failed."); + xmlXPathFreeObject (xpathObj); + xmlXPathFreeContext (xpathCtx); + xmlFreeDoc (doc); + return (-1); + } - /* Not Bind-9.5.x. Let's clear up and try Bind-9.6.x instead. */ - xmlXPathFreeObject(xpathObj); - xpathObj = NULL; + for (i = 0; i < xpathObj->nodesetval->nodeNr; i++) + { + xmlNode *node; + char *attr_version; + int parsed_version = 0; + + node = xpathObj->nodesetval->nodeTab[i]; + assert (node != NULL); - /* Look for /isc/bind/statistics[@version='2.0'] */ - xpathObj = xmlXPathEvalExpression(BAD_CAST "/isc[@version='1.0']/bind/statistics[@version='2.0']", xpathCtx); - if (xpathObj == NULL) + attr_version = (char *) xmlGetProp (node, BAD_CAST "version"); + if (attr_version == NULL) { - ERROR("bind plugin: unable to evaluate XPath expression StatsV2"); - break; + NOTICE ("bind plugin: Found tag doesn't have a " + "`version' attribute."); + continue; } - else if (xpathObj->nodesetval && xpathObj->nodesetval->nodeNr > 0) + DEBUG ("bind plugin: Found: ", attr_version); + + /* At the time this plugin was written, version "1.0" was used by + * BIND 9.5.0, version "2.0" was used by BIND 9.5.1 and 9.6.0. We assume + * that "1.*" and "2.*" don't introduce structural changes, so we just + * check for the first two characters here. */ + if (strncmp ("1.", attr_version, strlen ("1.")) == 0) + parsed_version = 1; + else if (strncmp ("2.", attr_version, strlen ("2.")) == 0) + parsed_version = 2; + else { - /* We have Bind-9.6.x */ - ret = bind_xml_stats_v2(doc, xpathCtx, xpathObj->nodesetval->nodeTab[0]); - break; + /* TODO: Use the complaint mechanism here. */ + NOTICE ("bind plugin: Found tag with version `%s'. " + "Unfortunately I have no clue how to parse that. " + "Please open a bug report for this.", attr_version); + xmlFree (attr_version); + continue; } - ERROR("bind plugin: unable to find statistics in supported version."); - } while (0); + ret = bind_xml_stats (parsed_version, + doc, xpathCtx, node); - if (xpathObj != NULL) - xmlXPathFreeObject(xpathObj); - if (xpathCtx != NULL) - xmlXPathFreeContext(xpathCtx); - if (doc != NULL) - xmlFreeDoc (doc); + xmlFree (attr_version); + /* One node ought to be enough. */ + break; + } + + xmlXPathFreeObject (xpathObj); + xmlXPathFreeContext (xpathCtx); + xmlFreeDoc (doc); return (ret); -} /* int bind_xml */ +} /* }}} int bind_xml */ -static int config_set_str (char **var, const char *value) +static int bind_config_set_bool (const char *name, int *var, /* {{{ */ + oconfig_item_t *ci) { - if (*var != NULL) + if ((ci->values_num != 1) || ( ci->values[0].type != OCONFIG_TYPE_BOOLEAN)) { - free (*var); - *var = NULL; - } - - if ((*var = strdup (value)) == NULL) + WARNING ("bind plugin: The `%s' option needs " + "exactly one boolean argument.", name); return (-1); - else - return (0); -} /* int config_set_str */ + } -static int config_set_bool (bool *var, const char *value) -{ - if ((strcasecmp ("true", value) == 0) - || (strcasecmp ("yes", value) == 0) - || (strcasecmp ("on", value) == 0)) + if (ci->values[0].value.boolean) *var = 1; - else if ((strcasecmp ("false", value) == 0) - || (strcasecmp ("no", value) == 0) - || (strcasecmp ("off", value) == 0)) - *var = 0; else - return -1; + *var = 0; return 0; -} /* int config_set_bool */ +} /* }}} int bind_config_set_bool */ -static int bind_config (const char *key, const char *value) +static int bind_config_add_view_zone (cb_view_t *view, /* {{{ */ + oconfig_item_t *ci) { - if (strcasecmp (key, "URL") == 0) - return (config_set_str (&url, value)); - else if (strcasecmp (key, "RRQueriesIn") == 0) - return (config_set_bool (&use_rrqueries_in, value)); - else if (strcasecmp (key, "Requests") == 0) - return (config_set_bool (&use_requests, value)); - else if (strcasecmp (key, "QueryResults") == 0) - return (config_set_bool (&use_query_results, value)); - else if (strcasecmp (key, "Updates") == 0) - return (config_set_bool (&use_updates, value)); - else if (strcasecmp (key, "ZoneMaintenance") == 0) - return (config_set_bool (&use_zone_maint, value)); - else if (strcasecmp (key, "Resolver") == 0) - return (config_set_bool (&use_resolver, value)); - else + char **tmp; + + if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) + { + WARNING ("bind plugin: The `Zone' option needs " + "exactly one string argument."); + return (-1); + } + + tmp = (char **) realloc (view->zones, + sizeof (char *) * (view->zones_num + 1)); + if (tmp == NULL) + { + ERROR ("bind plugin: realloc failed."); return (-1); -} /* int bind_config */ + } + view->zones = tmp; + + view->zones[view->zones_num] = strdup (ci->values[0].value.string); + if (view->zones[view->zones_num] == NULL) + { + ERROR ("bind plugin: strdup failed."); + return (-1); + } + view->zones_num++; + + return (0); +} /* }}} int bind_config_add_view_zone */ -static int bind_init (void) +static int bind_config_add_view (oconfig_item_t *ci) /* {{{ */ { - if (url == NULL) + cb_view_t *tmp; + int i; + + if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING)) + { + WARNING ("bind plugin: `View' blocks need exactly one string argument."); + return (-1); + } + + tmp = (cb_view_t *) realloc (views, sizeof (*views) * (views_num + 1)); + if (tmp == NULL) + { + ERROR ("bind plugin: realloc failed."); + return (-1); + } + views = tmp; + tmp = views + views_num; + + memset (tmp, 0, sizeof (*tmp)); + tmp->qtypes = 1; + tmp->resolver_stats = 1; + tmp->cacherrsets = 1; + tmp->zones = NULL; + tmp->zones_num = 0; + + tmp->name = strdup (ci->values[0].value.string); + if (tmp->name == NULL) { - WARNING ("bind plugin: bind_init: No URL configured, " - "returning an error."); + ERROR ("bind plugin: strdup failed."); + free (tmp); return (-1); } + for (i = 0; i < ci->children_num; i++) + { + oconfig_item_t *child = ci->children + i; + + if (strcasecmp ("QTypes", child->key) == 0) + bind_config_set_bool ("QTypes", &tmp->qtypes, child); + else if (strcasecmp ("ResolverStats", child->key) == 0) + bind_config_set_bool ("ResolverStats", &tmp->resolver_stats, child); + else if (strcasecmp ("CacheRRSets", child->key) == 0) + bind_config_set_bool ("CacheRRSets", &tmp->cacherrsets, child); + else if (strcasecmp ("Zone", child->key) == 0) + bind_config_add_view_zone (tmp, child); + else + { + WARNING ("bind plugin: Unknown configuration option " + "`%s' in view `%s' will be ignored.", child->key, tmp->name); + } + } /* for (i = 0; i < ci->children_num; i++) */ + + views_num++; + return (0); +} /* }}} int bind_config_add_view */ + +static int bind_config (oconfig_item_t *ci) /* {{{ */ +{ + int i; + + for (i = 0; i < ci->children_num; i++) + { + oconfig_item_t *child = ci->children + i; + + if (strcasecmp ("Url", child->key) == 0) { + if ((child->values_num != 1) || (child->values[0].type != OCONFIG_TYPE_STRING)) + { + WARNING ("bind plugin: The `Url' option needs " + "exactly one string argument."); + return (-1); + } + + url = strdup (child->values[0].value.string); + } else if (strcasecmp ("OpCodes", child->key) == 0) + bind_config_set_bool ("OpCodes", &global_opcodes, child); + else if (strcasecmp ("QTypes", child->key) == 0) + bind_config_set_bool ("QTypes", &global_qtypes, child); + else if (strcasecmp ("ServerStats", child->key) == 0) + bind_config_set_bool ("ServerStats", &global_server_stats, child); + else if (strcasecmp ("ZoneMaintStats", child->key) == 0) + bind_config_set_bool ("ZoneMaintStats", &global_zone_maint_stats, child); + else if (strcasecmp ("ResolverStats", child->key) == 0) + bind_config_set_bool ("ResolverStats", &global_resolver_stats, child); + else if (strcasecmp ("MemoryStats", child->key) == 0) + bind_config_set_bool ("MemoryStats", &global_memory_stats, child); + else if (strcasecmp ("View", child->key) == 0) + bind_config_add_view (child); + else + { + WARNING ("bind plugin: Unknown configuration option " + "`%s' will be ignored.", child->key); + } + } + + return (0); +} /* }}} int bind_config */ + +static int bind_init (void) /* {{{ */ +{ if (curl != NULL) - curl_easy_cleanup (curl); + return (0); - if ((curl = curl_easy_init ()) == NULL) + curl = curl_easy_init (); + if (curl == NULL) { ERROR ("bind plugin: bind_init: curl_easy_init failed."); return (-1); } + curl_easy_setopt (curl, CURLOPT_NOSIGNAL, 1); curl_easy_setopt (curl, CURLOPT_WRITEFUNCTION, bind_curl_callback); curl_easy_setopt (curl, CURLOPT_USERAGENT, PACKAGE_NAME"/"PACKAGE_VERSION); curl_easy_setopt (curl, CURLOPT_ERRORBUFFER, bind_curl_error); - curl_easy_setopt (curl, CURLOPT_URL, url); + curl_easy_setopt (curl, CURLOPT_URL, (url != NULL) ? url : BIND_DEFAULT_URL); + curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1); + return (0); -} /* int bind_init */ +} /* }}} int bind_init */ -static int bind_read (void) +static int bind_read (void) /* {{{ */ { int status; @@ -713,12 +1406,6 @@ static int bind_read (void) return (-1); } - if (url == NULL) - { - ERROR ("bind plugin: No URL has been configured."); - return (-1); - } - bind_buffer_fill = 0; if (curl_easy_perform (curl) != 0) { @@ -732,13 +1419,25 @@ static int bind_read (void) return (-1); else return (0); -} /* int bind_read */ +} /* }}} int bind_read */ + +static int bind_shutdown (void) /* {{{ */ +{ + if (curl != NULL) + { + curl_easy_cleanup (curl); + curl = NULL; + } + + return (0); +} /* }}} int bind_shutdown */ void module_register (void) { - plugin_register_config ("bind", bind_config, config_keys, config_keys_num); + plugin_register_complex_config ("bind", bind_config); plugin_register_init ("bind", bind_init); plugin_register_read ("bind", bind_read); + plugin_register_shutdown ("bind", bind_shutdown); } /* void module_register */ /* vim: set sw=2 sts=2 ts=8 et fdm=marker : */