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diff --git a/src/bind.c b/src/bind.c
--- /dev/null
+++ b/src/bind.c
@@ -0,0 +1,1813 @@
+/**
+ * collectd - src/bind.c
+ * 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
+ * Free Software Foundation; only version 2 of the License is applicable.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Authors:
+ * Bruno Prémont <bonbons at linux-vserver.org>
+ * Florian Forster <octo at collectd.org>
+ **/
+
+#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 <sys/select.h>
+#endif
+
+#include <curl/curl.h>
+#include <libxml/parser.h>
+#include <libxml/xpath.h>
+
+#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;
+
+/* FIXME: Enabled by default for backwards compatibility. */
+/* TODO: Remove time parsing code. */
+static _Bool config_parse_time = 1;
+
+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 int timeout = -1;
+
+static cb_view_t *views = NULL;
+static size_t views_num = 0;
+
+static CURL *curl = NULL;
+
+static char *bind_buffer = NULL;
+static size_t bind_buffer_size = 0;
+static size_t bind_buffer_fill = 0;
+static char bind_curl_error[CURL_ERROR_SIZE];
+
+/* Translation table for the `nsstats' values. */
+static const translation_info_t nsstats_translation_table[] = /* {{{ */
+{
+ /* 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 nsstats_translation_table_length =
+ STATIC_ARRAY_SIZE (nsstats_translation_table);
+/* }}} */
+
+/* Translation table for the `zonestats' values. */
+static const translation_info_t zonestats_translation_table[] = /* {{{ */
+{
+ /* 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);
+/* }}} */
+
+/* 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 (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] = value;
+
+ vl.values = values;
+ vl.values_len = 1;
+ if (config_parse_time)
+ 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));
+ 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));
+ replace_special (vl.type_instance, sizeof (vl.type_instance));
+ }
+ plugin_dispatch_values(&vl);
+} /* }}} void submit */
+
+static size_t bind_curl_callback (void *buf, size_t size, /* {{{ */
+ size_t nmemb, void __attribute__((unused)) *stream)
+{
+ size_t len = size * nmemb;
+
+ if (len <= 0)
+ return (len);
+
+ if ((bind_buffer_fill + len) >= bind_buffer_size)
+ {
+ char *temp;
+
+ temp = realloc(bind_buffer, bind_buffer_fill + len + 1);
+ if (temp == NULL)
+ {
+ ERROR ("bind plugin: realloc failed.");
+ return (0);
+ }
+ bind_buffer = temp;
+ bind_buffer_size = bind_buffer_fill + len + 1;
+ }
+
+ memcpy (bind_buffer + bind_buffer_fill, (char *) buf, len);
+ bind_buffer_fill += len;
+ bind_buffer[bind_buffer_fill] = 0;
+
+ return (len);
+} /* }}} 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);
+
+ 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);
+ xmlFree(str_ptr);
+ return (-1);
+ }
+
+ xmlFree(str_ptr);
+ *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;
+ double value;
+
+ str_ptr = (char *) xmlNodeListGetString (doc, node->xmlChildrenNode, 1);
+ if (str_ptr == NULL)
+ {
+ ERROR ("bind plugin: bind_xml_read_gauge: xmlNodeListGetString failed.");
+ return (-1);
+ }
+
+ errno = 0;
+ value = strtod (str_ptr, &end_ptr);
+ xmlFree(str_ptr);
+ if (str_ptr == end_ptr || errno)
+ {
+ 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_gauge: strtod failed.");
+ return (-1);
+ }
+
+ *ret_value = (gauge_t) value;
+ return (0);
+} /* }}} int bind_xml_read_gauge */
+
+static int bind_xml_read_timestamp (const char *xpath_expression, /* {{{ */
+ xmlDoc *doc, xmlXPathContext *xpathCtx, time_t *ret_value)
+{
+ 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_timestamp: xmlNodeListGetString failed.");
+ xmlXPathFreeObject (xpathObj);
+ return (-1);
+ }
+
+ memset (&tm, 0, sizeof(tm));
+ tmp = strptime (str_ptr, "%Y-%m-%dT%T", &tm);
+ xmlFree(str_ptr);
+ if (tmp == NULL)
+ {
+ ERROR ("bind plugin: bind_xml_read_timestamp: strptime failed.");
+ xmlXPathFreeObject (xpathObj);
+ return (-1);
+ }
+
+ *ret_value = mktime(&tm);
+
+ xmlXPathFreeObject (xpathObj);
+ return (0);
+} /* }}} int bind_xml_read_timestamp */
+
+/*
+ * bind_parse_generic_name_value
+ *
+ * Reads statistics in the form:
+ * <foo>
+ * <name>QUERY</name>
+ * <counter>123</counter>
+ * </foo>
+ */
+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)
+{
+ 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);
+ }
+
+ 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);
+
+ return (0);
+} /* }}} int bind_parse_generic_name_value */
+
+/*
+ * bind_parse_generic_value_list
+ *
+ * Reads statistics in the form:
+ * <foo>
+ * <name0>123</name0>
+ * <name1>234</name1>
+ * <name2>345</name2>
+ * :
+ * </foo>
+ */
+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);
+ }
+
+ 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++;
+ }
+ }
+
+ 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 */
+
+/*
+ * bind_parse_generic_name_attr_value_list
+ *
+ * Reads statistics in the form:
+ * <foo>
+ * <counter name="name0">123</counter>
+ * <counter name="name1">234</counter>
+ * <counter name="name2">345</counter>
+ * :
+ * </foo>
+ */
+static int bind_parse_generic_name_attr_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);
+ }
+
+ 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)
+ {
+ if (child->type != XML_ELEMENT_NODE)
+ continue;
+
+ if (strncmp ("counter", (char *) child->name, strlen ("counter")) != 0)
+ continue;
+
+ char *attr_name;
+ value_t value;
+ int status;
+
+ attr_name = (char *) xmlGetProp (child, BAD_CAST "name");
+ if (attr_name == NULL)
+ {
+ DEBUG ("bind plugin: found <counter> without name.");
+ continue;
+ }
+ 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) (attr_name, value, current_time, user_data);
+ if (status == 0)
+ num_entries++;
+ }
+ }
+
+ 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_name_attr_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;
+
+ if (version >= 3)
+ {
+ char *n = (char *) xmlGetProp (node, BAD_CAST "name");
+ char *c = (char *) xmlGetProp (node, BAD_CAST "rdataclass");
+ if (n && c)
+ {
+ zone_name = (char *) xmlMalloc(strlen(n) + strlen(c) + 2);
+ snprintf(zone_name, strlen(n) + strlen(c) + 2, "%s/%s", n, c);
+ }
+ xmlFree(n);
+ xmlFree(c);
+ }
+ else
+ {
+ 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;
+ }
+ xmlXPathFreeObject (path_obj);
+ }
+
+ if (zone_name == NULL)
+ {
+ ERROR ("bind plugin: Could not determine zone name.");
+ 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->zones_num)
+ return (0);
+
+ zone_name = view->zones[j];
+
+ DEBUG ("bind plugin: bind_xml_stats_handle_zone: Found zone `%s'.",
+ zone_name);
+
+ { /* Parse the <counters> 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);
+
+ if (version == 3)
+ {
+ list_info_ptr_t list_info =
+ {
+ plugin_instance,
+ /* type = */ "dns_qtype"
+ };
+ bind_parse_generic_name_attr_value_list (/* xpath = */ "counters[@type='rcode']",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, path_ctx, current_time, DS_TYPE_COUNTER);
+ bind_parse_generic_name_attr_value_list (/* xpath = */ "counters[@type='qtype']",
+ /* callback = */ bind_xml_list_callback,
+ /* user_data = */ &list_info,
+ doc, path_ctx, current_time, DS_TYPE_COUNTER);
+ }
+ else
+ {
+ bind_parse_generic_value_list (/* xpath = */ "counters",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, path_ctx, current_time, DS_TYPE_COUNTER);
+ }
+ } /* }}} */
+
+ 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)
+{
+ 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 <view> 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)
+{
+ char *view_name = NULL;
+ cb_view_t *view;
+ int i;
+ size_t j;
+
+ if (version == 3)
+ {
+ view_name = (char*) xmlGetProp(node, BAD_CAST "name");
+
+ if (view_name == NULL)
+ {
+ ERROR ("bind plugin: Could not determine view name.");
+ return (-1);
+ }
+
+ for (j = 0; j < views_num; j++)
+ {
+ if (strcasecmp (view_name, views[j].name) == 0)
+ break;
+ }
+
+ xmlFree (view_name);
+ view_name = NULL;
+ }
+ else
+ {
+ xmlXPathObject *path_obj;
+ 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);
+ if (version == 3)
+ {
+ bind_parse_generic_name_attr_value_list (/* xpath = */ "counters[@type='resqtype']",
+ /* callback = */ bind_xml_list_callback,
+ /* user_data = */ &list_info,
+ doc, path_ctx, current_time, DS_TYPE_COUNTER);
+ }
+ else
+ {
+ 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);
+ if (version == 3)
+ {
+ bind_parse_generic_name_attr_value_list ("counters[@type='resstats']",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, path_ctx, current_time, DS_TYPE_COUNTER);
+ }
+ else
+ {
+ 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 <view> 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 void bind_xml_stats_v3 (xmlDoc *doc, /* {{{ */
+ xmlXPathContext *xpathCtx, xmlNode *statsnode, time_t current_time)
+{
+ /* XPath: server/counters[@type='opcode']
+ * Variables: QUERY, IQUERY, NOTIFY, UPDATE, ...
+ * Layout v3:
+ * <counters type="opcode">
+ * <counter name="A">1</counter>
+ * :
+ * </counters>
+ */
+ if (global_opcodes != 0)
+ {
+ list_info_ptr_t list_info =
+ {
+ /* plugin instance = */ "global-opcodes",
+ /* type = */ "dns_opcode"
+ };
+ bind_parse_generic_name_attr_value_list (/* xpath = */ "server/counters[@type='opcode']",
+ /* callback = */ bind_xml_list_callback,
+ /* user_data = */ &list_info,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+
+ /* XPath: server/counters[@type='qtype']
+ * 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 v3:
+ * <counters type="opcode">
+ * <counter name="A">1</counter>
+ * :
+ * </counters>
+ */
+ if (global_qtypes != 0)
+ {
+ list_info_ptr_t list_info =
+ {
+ /* plugin instance = */ "global-qtypes",
+ /* type = */ "dns_qtype"
+ };
+
+ bind_parse_generic_name_attr_value_list (/* xpath = */ "server/counters[@type='qtype']",
+ /* callback = */ bind_xml_list_callback,
+ /* user_data = */ &list_info,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+
+ /* XPath: server/counters[@type='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 v3:
+ * <counters type="nsstat"
+ * <counter name="Requestv4">1</counter>
+ * <counter name="Requestv6">0</counter>
+ * :
+ * </counter>
+ */
+ if (global_server_stats)
+ {
+ translation_table_ptr_t table_ptr =
+ {
+ nsstats_translation_table,
+ nsstats_translation_table_length,
+ /* plugin_instance = */ "global-server_stats"
+ };
+
+ bind_parse_generic_name_attr_value_list ("server/counters[@type='nsstat']",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+
+ /* XPath: server/zonestats, server/zonestat, server/counters[@type='zonestat']
+ * Variables: NotifyOutv4, NotifyOutv6, NotifyInv4, NotifyInv6, NotifyRej,
+ * SOAOutv4, SOAOutv6, AXFRReqv4, AXFRReqv6, IXFRReqv4, IXFRReqv6,
+ * XfrSuccess, XfrFail
+ * Layout v3:
+ * <counters type="zonestat"
+ * <counter name="NotifyOutv4">0</counter>
+ * <counter name="NotifyOutv6">0</counter>
+ * :
+ * </counter>
+ */
+ if (global_zone_maint_stats)
+ {
+ translation_table_ptr_t table_ptr =
+ {
+ zonestats_translation_table,
+ zonestats_translation_table_length,
+ /* plugin_instance = */ "global-zone_maint_stats"
+ };
+
+ bind_parse_generic_name_attr_value_list ("server/counters[@type='zonestat']",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+
+ /* XPath: server/resstats, server/counters[@type='resstat']
+ * Variables: Queryv4, Queryv6, Responsev4, Responsev6, NXDOMAIN, SERVFAIL,
+ * FORMERR, OtherError, EDNS0Fail, Mismatch, Truncated, Lame,
+ * Retry, GlueFetchv4, GlueFetchv6, GlueFetchv4Fail,
+ * GlueFetchv6Fail, ValAttempt, ValOk, ValNegOk, ValFail
+ * Layout v3:
+ * <counters type="resstat"
+ * <counter name="Queryv4">0</counter>
+ * <counter name="Queryv6">0</counter>
+ * :
+ * </counter>
+ */
+ if (global_resolver_stats != 0)
+ {
+ translation_table_ptr_t table_ptr =
+ {
+ resstats_translation_table,
+ resstats_translation_table_length,
+ /* plugin_instance = */ "global-resolver_stats"
+ };
+
+ bind_parse_generic_name_attr_value_list ("server/counters[@type='resstat']",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+} /* }}} bind_xml_stats_v3 */
+
+static void bind_xml_stats_v1_v2 (int version, xmlDoc *doc, /* {{{ */
+ xmlXPathContext *xpathCtx, xmlNode *statsnode, time_t current_time)
+{
+ /* XPath: server/requests/opcode, server/counters[@type='opcode']
+ * Variables: QUERY, IQUERY, NOTIFY, UPDATE, ...
+ * Layout V1 and V2:
+ * <opcode>
+ * <name>A</name>
+ * <counter>1</counter>
+ * </opcode>
+ * :
+ */
+ 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);
+ }
+
+ /* XPath: server/queries-in/rdtype, server/counters[@type='qtype']
+ * 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 v1 or v2:
+ * <rdtype>
+ * <name>A</name>
+ * <counter>1</counter>
+ * </rdtype>
+ * :
+ */
+ 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, server/counters[@type='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:
+ * <nsstats>
+ * <Requestv4>1</Requestv4>
+ * <Requestv6>0</Requestv6>
+ * :
+ * </nsstats>
+ * Layout v2:
+ * <nsstat>
+ * <name>Requestv4</name>
+ * <counter>1</counter>
+ * </nsstat>
+ * <nsstat>
+ * <name>Requestv6</name>
+ * <counter>0</counter>
+ * </nsstat>
+ * :
+ */
+ 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
+ {
+ bind_parse_generic_name_value ("server/nsstat",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+ }
+
+ /* XPath: server/zonestats, server/zonestat, server/counters[@type='zonestat']
+ * Variables: NotifyOutv4, NotifyOutv6, NotifyInv4, NotifyInv6, NotifyRej,
+ * SOAOutv4, SOAOutv6, AXFRReqv4, AXFRReqv6, IXFRReqv4, IXFRReqv6,
+ * XfrSuccess, XfrFail
+ * Layout v1:
+ * <zonestats>
+ * <NotifyOutv4>0</NotifyOutv4>
+ * <NotifyOutv6>0</NotifyOutv6>
+ * :
+ * </zonestats>
+ * Layout v2:
+ * <zonestat>
+ * <name>NotifyOutv4</name>
+ * <counter>0</counter>
+ * </zonestat>
+ * <zonestat>
+ * <name>NotifyOutv6</name>
+ * <counter>0</counter>
+ * </zonestat>
+ * :
+ */
+ 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);
+ }
+ else
+ {
+ bind_parse_generic_name_value ("server/zonestat",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+ }
+
+ /* XPath: server/resstats, server/counters[@type='resstat']
+ * Variables: Queryv4, Queryv6, Responsev4, Responsev6, NXDOMAIN, SERVFAIL,
+ * FORMERR, OtherError, EDNS0Fail, Mismatch, Truncated, Lame,
+ * Retry, GlueFetchv4, GlueFetchv6, GlueFetchv4Fail,
+ * GlueFetchv6Fail, ValAttempt, ValOk, ValNegOk, ValFail
+ * Layout v1:
+ * <resstats>
+ * <Queryv4>0</Queryv4>
+ * <Queryv6>0</Queryv6>
+ * :
+ * </resstats>
+ * Layout v2:
+ * <resstat>
+ * <name>Queryv4</name>
+ * <counter>0</counter>
+ * </resstat>
+ * <resstat>
+ * <name>Queryv6</name>
+ * <counter>0</counter>
+ * </resstat>
+ * :
+ */
+ 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);
+ }
+ else
+ {
+ bind_parse_generic_name_value ("server/resstat",
+ /* callback = */ bind_xml_table_callback,
+ /* user_data = */ &table_ptr,
+ doc, xpathCtx, current_time, DS_TYPE_COUNTER);
+ }
+ }
+} /* }}} bind_xml_stats_v1_v2 */
+
+static int bind_xml_stats (int version, xmlDoc *doc, /* {{{ */
+ xmlXPathContext *xpathCtx, xmlNode *statsnode)
+{
+ time_t current_time = 0;
+ int status;
+
+ xpathCtx->node = statsnode;
+
+ /* 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);
+
+ if (version == 3)
+ {
+ bind_xml_stats_v3(doc, xpathCtx, statsnode, current_time);
+ }
+ else
+ {
+ bind_xml_stats_v1_v2(version, doc, xpathCtx, statsnode, current_time);
+ }
+
+ /* XPath: memory/summary
+ * Variables: TotalUse, InUse, BlockSize, ContextSize, Lost
+ * Layout: v2 and v3:
+ * <summary>
+ * <TotalUse>6587096</TotalUse>
+ * <InUse>1345424</InUse>
+ * <BlockSize>5505024</BlockSize>
+ * <ContextSize>3732456</ContextSize>
+ * <Lost>0</Lost>
+ * </summary>
+ */
+ 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 */
+
+static int bind_xml (const char *data) /* {{{ */
+{
+ xmlDoc *doc = NULL;
+ xmlXPathContext *xpathCtx = NULL;
+ xmlXPathObject *xpathObj = NULL;
+ int ret = -1;
+ int i;
+
+ doc = xmlParseMemory (data, strlen (data));
+ if (doc == NULL)
+ {
+ ERROR ("bind plugin: xmlParseMemory failed.");
+ return (-1);
+ }
+
+ xpathCtx = xmlXPathNewContext (doc);
+ if (xpathCtx == NULL)
+ {
+ ERROR ("bind plugin: xmlXPathNewContext failed.");
+ xmlFreeDoc (doc);
+ return (-1);
+ }
+
+ //
+ // version 3.* of statistics XML (since BIND9.9)
+ //
+
+ xpathObj = xmlXPathEvalExpression (BAD_CAST "/statistics", xpathCtx);
+ if (xpathObj == NULL || xpathObj->nodesetval == NULL || xpathObj->nodesetval->nodeNr == 0)
+ {
+ DEBUG ("bind plugin: Statistics appears not to be v3");
+ // we will fallback to v1 or v2 detection
+ if (xpathObj != NULL) { xmlXPathFreeObject (xpathObj); }
+ }
+ else
+ {
+ for (i = 0; i < xpathObj->nodesetval->nodeNr; i++)
+ {
+ xmlNode *node;
+ char *attr_version;
+
+ node = xpathObj->nodesetval->nodeTab[i];
+ assert (node != NULL);
+
+ attr_version = (char *) xmlGetProp (node, BAD_CAST "version");
+ if (attr_version == NULL)
+ {
+ NOTICE ("bind plugin: Found <statistics> tag doesn't have a "
+ "`version' attribute.");
+ continue;
+ }
+ DEBUG ("bind plugin: Found: <statistics version=\"%s\">", attr_version);
+
+ if (strncmp ("3.", attr_version, strlen ("3.")) != 0)
+ {
+ /* TODO: Use the complaint mechanism here. */
+ NOTICE ("bind plugin: Found <statistics> 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;
+ }
+ ret = bind_xml_stats (3, doc, xpathCtx, node);
+
+ xmlFree (attr_version);
+ /* One <statistics> node ought to be enough. */
+ break;
+ }
+
+ // we are finished, early-return
+ xmlXPathFreeObject (xpathObj);
+ xmlXPathFreeContext (xpathCtx);
+ xmlFreeDoc (doc);
+
+ return (ret);
+ }
+
+ //
+ // versions 1.* or 2.* of statistics XML
+ //
+
+ xpathObj = xmlXPathEvalExpression (BAD_CAST "/isc/bind/statistics", xpathCtx);
+ if (xpathObj == NULL)
+ {
+ ERROR ("bind plugin: Cannot find the <statistics> 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);
+ }
+
+ 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);
+
+ attr_version = (char *) xmlGetProp (node, BAD_CAST "version");
+ if (attr_version == NULL)
+ {
+ NOTICE ("bind plugin: Found <statistics> tag doesn't have a "
+ "`version' attribute.");
+ continue;
+ }
+ DEBUG ("bind plugin: Found: <statistics version=\"%s\">", 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
+ {
+ /* TODO: Use the complaint mechanism here. */
+ NOTICE ("bind plugin: Found <statistics> 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;
+ }
+
+ ret = bind_xml_stats (parsed_version,
+ doc, xpathCtx, node);
+
+ xmlFree (attr_version);
+ /* One <statistics> node ought to be enough. */
+ break;
+ }
+
+ xmlXPathFreeObject (xpathObj);
+ xmlXPathFreeContext (xpathCtx);
+ xmlFreeDoc (doc);
+
+ return (ret);
+} /* }}} int bind_xml */
+
+static int bind_config_set_bool (const char *name, int *var, /* {{{ */
+ oconfig_item_t *ci)
+{
+ if ((ci->values_num != 1) || ( ci->values[0].type != OCONFIG_TYPE_BOOLEAN))
+ {
+ WARNING ("bind plugin: The `%s' option needs "
+ "exactly one boolean argument.", name);
+ return (-1);
+ }
+
+ if (ci->values[0].value.boolean)
+ *var = 1;
+ else
+ *var = 0;
+ return 0;
+} /* }}} int bind_config_set_bool */
+
+static int bind_config_add_view_zone (cb_view_t *view, /* {{{ */
+ oconfig_item_t *ci)
+{
+ 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);
+ }
+ 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_config_add_view (oconfig_item_t *ci) /* {{{ */
+{
+ 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)
+ {
+ 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 if (strcasecmp ("ParseTime", child->key) == 0)
+ cf_util_get_boolean (child, &config_parse_time);
+ else if (strcasecmp ("Timeout", child->key) == 0)
+ cf_util_get_int (child, &timeout);
+ 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)
+ return (0);
+
+ curl = curl_easy_init ();
+ if (curl == NULL)
+ {
+ ERROR ("bind plugin: bind_init: curl_easy_init failed.");
+ return (-1);
+ }
+
+ curl_easy_setopt (curl, CURLOPT_NOSIGNAL, 1L);
+ curl_easy_setopt (curl, CURLOPT_WRITEFUNCTION, bind_curl_callback);
+ curl_easy_setopt (curl, CURLOPT_USERAGENT, COLLECTD_USERAGENT);
+ curl_easy_setopt (curl, CURLOPT_ERRORBUFFER, bind_curl_error);
+ curl_easy_setopt (curl, CURLOPT_URL, (url != NULL) ? url : BIND_DEFAULT_URL);
+ curl_easy_setopt (curl, CURLOPT_FOLLOWLOCATION, 1L);
+ curl_easy_setopt (curl, CURLOPT_MAXREDIRS, 50L);
+#ifdef HAVE_CURLOPT_TIMEOUT_MS
+ curl_easy_setopt (curl, CURLOPT_TIMEOUT_MS, (timeout >= 0) ?
+ (long) timeout : CDTIME_T_TO_MS(plugin_get_interval()));
+#endif
+
+
+ return (0);
+} /* }}} int bind_init */
+
+static int bind_read (void) /* {{{ */
+{
+ int status;
+
+ if (curl == NULL)
+ {
+ ERROR ("bind plugin: I don't have a CURL object.");
+ return (-1);
+ }
+
+ bind_buffer_fill = 0;
+ if (curl_easy_perform (curl) != CURLE_OK)
+ {
+ ERROR ("bind plugin: curl_easy_perform failed: %s",
+ bind_curl_error);
+ return (-1);
+ }
+
+ status = bind_xml (bind_buffer);
+ if (status != 0)
+ return (-1);
+ else
+ return (0);
+} /* }}} 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_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 : */