/**
* collectd - src/snmp.c
- * Copyright (C) 2007 Florian octo Forster
+ * Copyright (C) 2007-2012 Florian octo 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.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * 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.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * 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
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* Authors:
- * Florian octo Forster <octo at verplant.org>
+ * Florian octo Forster <octo at collectd.org>
**/
#include "collectd.h"
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
+#include <fnmatch.h>
+
/*
* Private data structes
*/
{
char *name; /* used to reference this from the `Collect' option */
char *type; /* used to find the data_set */
- int is_table;
+ _Bool is_table;
instance_t instance;
char *instance_prefix;
oid_t *values;
double scale;
double shift;
struct data_definition_s *next;
+ char **ignores;
+ size_t ignores_len;
+ int invert_match;
};
typedef struct data_definition_s data_definition_t;
{
char *name;
char *address;
- char *community;
int version;
+
+ /* snmpv1/2 options */
+ char *community;
+
+ /* snmpv3 security options */
+ char *username;
+ oid *auth_protocol;
+ size_t auth_protocol_len;
+ char *auth_passphrase;
+ oid *priv_protocol;
+ size_t priv_protocol_len;
+ char *priv_passphrase;
+ int security_level;
+ char *context;
+
void *sess_handle;
c_complain_t complaint;
- uint32_t interval;
+ cdtime_t interval;
data_definition_t **data_list;
int data_list_len;
};
* gaps in tables. */
struct csnmp_list_instances_s
{
- oid subid;
+ oid_t suffix;
char instance[DATA_MAX_NAME_LEN];
struct csnmp_list_instances_s *next;
};
struct csnmp_table_values_s
{
- oid subid;
+ oid_t suffix;
value_t value;
struct csnmp_table_values_s *next;
};
/*
* Private functions
*/
+static void csnmp_oid_init (oid_t *dst, oid const *src, size_t n)
+{
+ assert (n <= STATIC_ARRAY_SIZE (dst->oid));
+ memcpy (dst->oid, src, sizeof (*src) * n);
+ dst->oid_len = n;
+}
+
+static int csnmp_oid_compare (oid_t const *left, oid_t const *right)
+{
+ return (snmp_oid_compare (left->oid, left->oid_len,
+ right->oid, right->oid_len));
+}
+
+static int csnmp_oid_suffix (oid_t *dst, oid_t const *src,
+ oid_t const *root)
+{
+ /* Make sure "src" is in "root"s subtree. */
+ if (src->oid_len <= root->oid_len)
+ return (EINVAL);
+ if (snmp_oid_ncompare (root->oid, root->oid_len,
+ src->oid, src->oid_len,
+ /* n = */ root->oid_len) != 0)
+ return (EINVAL);
+
+ memset (dst, 0, sizeof (*dst));
+ dst->oid_len = src->oid_len - root->oid_len;
+ memcpy (dst->oid, &src->oid[root->oid_len],
+ dst->oid_len * sizeof (dst->oid[0]));
+ return (0);
+}
+
+static int csnmp_oid_to_string (char *buffer, size_t buffer_size,
+ oid_t const *o)
+{
+ char oid_str[MAX_OID_LEN][16];
+ char *oid_str_ptr[MAX_OID_LEN];
+ size_t i;
+
+ for (i = 0; i < o->oid_len; i++)
+ {
+ ssnprintf (oid_str[i], sizeof (oid_str[i]), "%lu", (unsigned long) o->oid[i]);
+ oid_str_ptr[i] = oid_str[i];
+ }
+
+ return (strjoin (buffer, buffer_size,
+ oid_str_ptr, o->oid_len, /* separator = */ "."));
+}
+
static void csnmp_host_close_session (host_definition_t *host) /* {{{ */
{
if (host->sess_handle == NULL)
if (hd->name != NULL)
{
DEBUG ("snmp plugin: Destroying host definition for host `%s'.",
- hd->name);
+ hd->name);
}
csnmp_host_close_session (hd);
sfree (hd->name);
sfree (hd->address);
sfree (hd->community);
+ sfree (hd->username);
+ sfree (hd->auth_passphrase);
+ sfree (hd->priv_passphrase);
+ sfree (hd->context);
sfree (hd->data_list);
sfree (hd);
* csnmp_config
* +-> call_snmp_init_once
* +-> csnmp_config_add_data
- * ! +-> csnmp_config_add_data_type
- * ! +-> csnmp_config_add_data_table
* ! +-> csnmp_config_add_data_instance
* ! +-> csnmp_config_add_data_instance_prefix
* ! +-> csnmp_config_add_data_values
* +-> csnmp_config_add_host
- * +-> csnmp_config_add_host_address
- * +-> csnmp_config_add_host_community
* +-> csnmp_config_add_host_version
* +-> csnmp_config_add_host_collect
- * +-> csnmp_config_add_host_interval
+ * +-> csnmp_config_add_host_auth_protocol
+ * +-> csnmp_config_add_host_priv_protocol
+ * +-> csnmp_config_add_host_security_level
*/
static void call_snmp_init_once (void)
{
have_init = 1;
} /* void call_snmp_init_once */
-static int csnmp_config_add_data_type (data_definition_t *dd, oconfig_item_t *ci)
-{
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("snmp plugin: `Type' needs exactly one string argument.");
- return (-1);
- }
-
- sfree (dd->type);
- dd->type = strdup (ci->values[0].value.string);
- if (dd->type == NULL)
- return (-1);
-
- return (0);
-} /* int csnmp_config_add_data_type */
-
-static int csnmp_config_add_data_table (data_definition_t *dd, oconfig_item_t *ci)
-{
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_BOOLEAN))
- {
- WARNING ("snmp plugin: `Table' needs exactly one boolean argument.");
- return (-1);
- }
-
- dd->is_table = ci->values[0].value.boolean ? 1 : 0;
-
- return (0);
-} /* int csnmp_config_add_data_table */
-
static int csnmp_config_add_data_instance (data_definition_t *dd, oconfig_item_t *ci)
{
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("snmp plugin: `Instance' needs exactly one string argument.");
- return (-1);
- }
+ char buffer[DATA_MAX_NAME_LEN];
+ int status;
+
+ status = cf_util_get_string_buffer(ci, buffer, sizeof(buffer));
+ if (status != 0)
+ return status;
if (dd->is_table)
{
/* Instance is an OID */
dd->instance.oid.oid_len = MAX_OID_LEN;
- if (!read_objid (ci->values[0].value.string,
- dd->instance.oid.oid, &dd->instance.oid.oid_len))
+ if (!read_objid (buffer,
+ dd->instance.oid.oid, &dd->instance.oid.oid_len))
{
- ERROR ("snmp plugin: read_objid (%s) failed.",
- ci->values[0].value.string);
+ ERROR ("snmp plugin: read_objid (%s) failed.", buffer);
return (-1);
}
}
else
{
/* Instance is a simple string */
- sstrncpy (dd->instance.string, ci->values[0].value.string,
- sizeof (dd->instance.string));
+ sstrncpy (dd->instance.string, buffer,
+ sizeof (dd->instance.string));
}
return (0);
static int csnmp_config_add_data_instance_prefix (data_definition_t *dd,
oconfig_item_t *ci)
{
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("snmp plugin: `InstancePrefix' needs exactly one string argument.");
- return (-1);
- }
+ int status;
if (!dd->is_table)
{
WARNING ("snmp plugin: data %s: InstancePrefix is ignored when `Table' "
- "is set to `false'.", dd->name);
+ "is set to `false'.", dd->name);
return (-1);
}
- sfree (dd->instance_prefix);
- dd->instance_prefix = strdup (ci->values[0].value.string);
- if (dd->instance_prefix == NULL)
- return (-1);
-
- return (0);
+ status = cf_util_get_string(ci, &dd->instance_prefix);
+ return status;
} /* int csnmp_config_add_data_instance_prefix */
static int csnmp_config_add_data_values (data_definition_t *dd, oconfig_item_t *ci)
dd->values[i].oid_len = MAX_OID_LEN;
if (NULL == snmp_parse_oid (ci->values[i].value.string,
- dd->values[i].oid, &dd->values[i].oid_len))
+ dd->values[i].oid, &dd->values[i].oid_len))
{
ERROR ("snmp plugin: snmp_parse_oid (%s) failed.",
- ci->values[i].value.string);
+ ci->values[i].value.string);
free (dd->values);
dd->values = NULL;
dd->values_len = 0;
return (0);
} /* int csnmp_config_add_data_instance */
-static int csnmp_config_add_data_shift (data_definition_t *dd, oconfig_item_t *ci)
+static int csnmp_config_add_data_blacklist(data_definition_t *dd, oconfig_item_t *ci)
{
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
+ int i;
+
+ if (ci->values_num < 1)
+ return (0);
+
+ for (i = 0; i < ci->values_num; i++)
{
- WARNING ("snmp plugin: The `Scale' config option needs exactly one number argument.");
- return (-1);
+ if (ci->values[i].type != OCONFIG_TYPE_STRING)
+ {
+ WARNING ("snmp plugin: `Ignore' needs only string argument.");
+ return (-1);
+ }
}
- dd->shift = ci->values[0].value.number;
+ dd->ignores_len = 0;
+ dd->ignores = NULL;
- return (0);
-} /* int csnmp_config_add_data_shift */
+ for (i = 0; i < ci->values_num; ++i)
+ {
+ if (strarray_add(&(dd->ignores), &(dd->ignores_len), ci->values[i].value.string) != 0)
+ {
+ ERROR("snmp plugin: Can't allocate memory");
+ strarray_free(dd->ignores, dd->ignores_len);
+ return (ENOMEM);
+ }
+ }
+ return 0;
+} /* int csnmp_config_add_data_blacklist */
-static int csnmp_config_add_data_scale (data_definition_t *dd, oconfig_item_t *ci)
+static int csnmp_config_add_data_blacklist_match_inverted(data_definition_t *dd, oconfig_item_t *ci)
{
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
+ if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_BOOLEAN))
{
- WARNING ("snmp plugin: The `Scale' config option needs exactly one number argument.");
+ WARNING ("snmp plugin: `InvertMatch' needs exactly one boolean argument.");
return (-1);
}
- dd->scale = ci->values[0].value.number;
+ dd->invert_match = ci->values[0].value.boolean ? 1 : 0;
return (0);
-} /* int csnmp_config_add_data_scale */
+} /* int csnmp_config_add_data_blacklist_match_inverted */
static int csnmp_config_add_data (oconfig_item_t *ci)
{
int status = 0;
int i;
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("snmp plugin: The `Data' config option needs exactly one string argument.");
- return (-1);
- }
-
dd = (data_definition_t *) malloc (sizeof (data_definition_t));
if (dd == NULL)
return (-1);
memset (dd, '\0', sizeof (data_definition_t));
- dd->name = strdup (ci->values[0].value.string);
- if (dd->name == NULL)
+ status = cf_util_get_string(ci, &dd->name);
+ if (status != 0)
{
free (dd);
return (-1);
}
+
dd->scale = 1.0;
dd->shift = 0.0;
status = 0;
if (strcasecmp ("Type", option->key) == 0)
- status = csnmp_config_add_data_type (dd, option);
+ status = cf_util_get_string(option, &dd->type);
else if (strcasecmp ("Table", option->key) == 0)
- status = csnmp_config_add_data_table (dd, option);
+ status = cf_util_get_boolean(option, &dd->is_table);
else if (strcasecmp ("Instance", option->key) == 0)
status = csnmp_config_add_data_instance (dd, option);
else if (strcasecmp ("InstancePrefix", option->key) == 0)
else if (strcasecmp ("Values", option->key) == 0)
status = csnmp_config_add_data_values (dd, option);
else if (strcasecmp ("Shift", option->key) == 0)
- status = csnmp_config_add_data_shift (dd, option);
+ status = cf_util_get_double(option, &dd->shift);
else if (strcasecmp ("Scale", option->key) == 0)
- status = csnmp_config_add_data_scale (dd, option);
+ status = cf_util_get_double(option, &dd->scale);
+ else if (strcasecmp ("Ignore", option->key) == 0)
+ status = csnmp_config_add_data_blacklist(dd, option);
+ else if (strcasecmp ("InvertMatch", option->key) == 0)
+ status = csnmp_config_add_data_blacklist_match_inverted(dd, option);
else
{
WARNING ("snmp plugin: Option `%s' not allowed here.", option->key);
sfree (dd->name);
sfree (dd->instance_prefix);
sfree (dd->values);
+ sfree (dd->ignores);
sfree (dd);
return (-1);
}
return (0);
} /* int csnmp_config_add_data */
-static int csnmp_config_add_host_address (host_definition_t *hd, oconfig_item_t *ci)
-{
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("snmp plugin: The `Address' config option needs exactly one string argument.");
- return (-1);
- }
-
- if (hd->address == NULL)
- free (hd->address);
-
- hd->address = strdup (ci->values[0].value.string);
- if (hd->address == NULL)
- return (-1);
-
- DEBUG ("snmp plugin: host = %s; host->address = %s;",
- hd->name, hd->address);
-
- return (0);
-} /* int csnmp_config_add_host_address */
-
-static int csnmp_config_add_host_community (host_definition_t *hd, oconfig_item_t *ci)
-{
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("snmp plugin: The `Community' config option needs exactly one string argument.");
- return (-1);
- }
-
- if (hd->community == NULL)
- free (hd->community);
-
- hd->community = strdup (ci->values[0].value.string);
- if (hd->community == NULL)
- return (-1);
-
- DEBUG ("snmp plugin: host = %s; host->community = %s;",
- hd->name, hd->community);
-
- return (0);
-} /* int csnmp_config_add_host_community */
-
static int csnmp_config_add_host_version (host_definition_t *hd, oconfig_item_t *ci)
{
int version;
}
version = (int) ci->values[0].value.number;
- if ((version != 1) && (version != 2))
+ if ((version < 1) || (version > 3))
{
- WARNING ("snmp plugin: `Version' must either be `1' or `2'.");
+ WARNING ("snmp plugin: `Version' must either be `1', `2', or `3'.");
return (-1);
}
{
for (data = data_head; data != NULL; data = data->next)
if (strcasecmp (ci->values[i].value.string, data->name) == 0)
- break;
+ break;
if (data == NULL)
{
WARNING ("snmp plugin: No such data configured: `%s'",
- ci->values[i].value.string);
+ ci->values[i].value.string);
continue;
}
DEBUG ("snmp plugin: Collect: host = %s, data[%i] = %s;",
- host->name, host->data_list_len, data->name);
+ host->name, host->data_list_len, data->name);
host->data_list[host->data_list_len] = data;
host->data_list_len++;
return (0);
} /* int csnmp_config_add_host_collect */
-static int csnmp_config_add_host_interval (host_definition_t *hd, oconfig_item_t *ci)
+static int csnmp_config_add_host_auth_protocol (host_definition_t *hd, oconfig_item_t *ci)
{
- if ((ci->values_num != 1)
- || (ci->values[0].type != OCONFIG_TYPE_NUMBER))
+ char buffer[4];
+ int status;
+
+ status = cf_util_get_string_buffer(ci, buffer, sizeof(buffer));
+ if (status != 0)
+ return status;
+
+ if (strcasecmp("MD5", buffer) == 0) {
+ hd->auth_protocol = usmHMACMD5AuthProtocol;
+ hd->auth_protocol_len = sizeof(usmHMACMD5AuthProtocol)/sizeof(oid);
+ }
+ else if (strcasecmp("SHA", buffer) == 0) {
+ hd->auth_protocol = usmHMACSHA1AuthProtocol;
+ hd->auth_protocol_len = sizeof(usmHMACSHA1AuthProtocol)/sizeof(oid);
+ }
+ else
+ {
+ WARNING ("snmp plugin: The `AuthProtocol' config option must be `MD5' or `SHA'.");
+ return (-1);
+ }
+
+ DEBUG ("snmp plugin: host = %s; host->auth_protocol = %s;",
+ hd->name, hd->auth_protocol == usmHMACMD5AuthProtocol ? "MD5" : "SHA");
+
+ return (0);
+} /* int csnmp_config_add_host_auth_protocol */
+
+static int csnmp_config_add_host_priv_protocol (host_definition_t *hd, oconfig_item_t *ci)
+{
+ char buffer[4];
+ int status;
+
+ status = cf_util_get_string_buffer(ci, buffer, sizeof(buffer));
+ if (status != 0)
+ return status;
+
+ if (strcasecmp("AES", buffer) == 0)
+ {
+ hd->priv_protocol = usmAESPrivProtocol;
+ hd->priv_protocol_len = sizeof(usmAESPrivProtocol)/sizeof(oid);
+ }
+ else if (strcasecmp("DES", buffer) == 0) {
+ hd->priv_protocol = usmDESPrivProtocol;
+ hd->priv_protocol_len = sizeof(usmDESPrivProtocol)/sizeof(oid);
+ }
+ else
+ {
+ WARNING ("snmp plugin: The `PrivProtocol' config option must be `AES' or `DES'.");
+ return (-1);
+ }
+
+ DEBUG ("snmp plugin: host = %s; host->priv_protocol = %s;",
+ hd->name, hd->priv_protocol == usmAESPrivProtocol ? "AES" : "DES");
+
+ return (0);
+} /* int csnmp_config_add_host_priv_protocol */
+
+static int csnmp_config_add_host_security_level (host_definition_t *hd, oconfig_item_t *ci)
+{
+ char buffer[16];
+ int status;
+
+ status = cf_util_get_string_buffer(ci, buffer, sizeof(buffer));
+ if (status != 0)
+ return status;
+
+ if (strcasecmp("noAuthNoPriv", buffer) == 0)
+ hd->security_level = SNMP_SEC_LEVEL_NOAUTH;
+ else if (strcasecmp("authNoPriv", buffer) == 0)
+ hd->security_level = SNMP_SEC_LEVEL_AUTHNOPRIV;
+ else if (strcasecmp("authPriv", buffer) == 0)
+ hd->security_level = SNMP_SEC_LEVEL_AUTHPRIV;
+ else
{
- WARNING ("snmp plugin: The `Interval' config option needs exactly one number argument.");
+ WARNING ("snmp plugin: The `SecurityLevel' config option must be `noAuthNoPriv', `authNoPriv', or `authPriv'.");
return (-1);
}
- hd->interval = ci->values[0].value.number >= 0
- ? (uint32_t) ci->values[0].value.number
- : 0;
+ DEBUG ("snmp plugin: host = %s; host->security_level = %d;",
+ hd->name, hd->security_level);
return (0);
-} /* int csnmp_config_add_host_interval */
+} /* int csnmp_config_add_host_security_level */
static int csnmp_config_add_host (oconfig_item_t *ci)
{
user_data_t cb_data;
struct timespec cb_interval;
- if ((ci->values_num != 1) || (ci->values[0].type != OCONFIG_TYPE_STRING))
- {
- WARNING ("snmp plugin: `Host' needs exactly one string argument.");
- return (-1);
- }
-
hd = (host_definition_t *) malloc (sizeof (host_definition_t));
if (hd == NULL)
return (-1);
hd->version = 2;
C_COMPLAIN_INIT (&hd->complaint);
- hd->name = strdup (ci->values[0].value.string);
- if (hd->name == NULL)
- {
- free (hd);
- return (-1);
- }
+ status = cf_util_get_string(ci, &hd->name);
+ if (status != 0)
+ return status;
hd->sess_handle = NULL;
hd->interval = 0;
status = 0;
if (strcasecmp ("Address", option->key) == 0)
- status = csnmp_config_add_host_address (hd, option);
+ status = cf_util_get_string(option, &hd->address);
else if (strcasecmp ("Community", option->key) == 0)
- status = csnmp_config_add_host_community (hd, option);
+ status = cf_util_get_string(option, &hd->community);
else if (strcasecmp ("Version", option->key) == 0)
status = csnmp_config_add_host_version (hd, option);
else if (strcasecmp ("Collect", option->key) == 0)
csnmp_config_add_host_collect (hd, option);
else if (strcasecmp ("Interval", option->key) == 0)
- csnmp_config_add_host_interval (hd, option);
+ cf_util_get_cdtime (option, &hd->interval);
+ else if (strcasecmp ("Username", option->key) == 0)
+ status = cf_util_get_string(option, &hd->username);
+ else if (strcasecmp ("AuthProtocol", option->key) == 0)
+ status = csnmp_config_add_host_auth_protocol (hd, option);
+ else if (strcasecmp ("PrivacyProtocol", option->key) == 0)
+ status = csnmp_config_add_host_priv_protocol (hd, option);
+ else if (strcasecmp ("AuthPassphrase", option->key) == 0)
+ status = cf_util_get_string(option, &hd->auth_passphrase);
+ else if (strcasecmp ("PrivacyPassphrase", option->key) == 0)
+ status = cf_util_get_string(option, &hd->priv_passphrase);
+ else if (strcasecmp ("SecurityLevel", option->key) == 0)
+ status = csnmp_config_add_host_security_level (hd, option);
+ else if (strcasecmp ("Context", option->key) == 0)
+ status = cf_util_get_string(option, &hd->context);
else
{
WARNING ("snmp plugin: csnmp_config_add_host: Option `%s' not allowed here.", option->key);
status = -1;
break;
}
- if (hd->community == NULL)
+ if (hd->community == NULL && hd->version < 3)
{
WARNING ("snmp plugin: `Community' not given for host `%s'", hd->name);
status = -1;
break;
}
+ if (hd->version == 3)
+ {
+ if (hd->username == NULL)
+ {
+ WARNING ("snmp plugin: `Username' not given for host `%s'", hd->name);
+ status = -1;
+ break;
+ }
+ if (hd->security_level == 0)
+ {
+ WARNING ("snmp plugin: `SecurityLevel' not given for host `%s'", hd->name);
+ status = -1;
+ break;
+ }
+ if (hd->security_level == SNMP_SEC_LEVEL_AUTHNOPRIV || hd->security_level == SNMP_SEC_LEVEL_AUTHPRIV)
+ {
+ if (hd->auth_protocol == NULL)
+ {
+ WARNING ("snmp plugin: `AuthProtocol' not given for host `%s'", hd->name);
+ status = -1;
+ break;
+ }
+ if (hd->auth_passphrase == NULL)
+ {
+ WARNING ("snmp plugin: `AuthPassphrase' not given for host `%s'", hd->name);
+ status = -1;
+ break;
+ }
+ }
+ if (hd->security_level == SNMP_SEC_LEVEL_AUTHPRIV)
+ {
+ if (hd->priv_protocol == NULL)
+ {
+ WARNING ("snmp plugin: `PrivacyProtocol' not given for host `%s'", hd->name);
+ status = -1;
+ break;
+ }
+ if (hd->priv_passphrase == NULL)
+ {
+ WARNING ("snmp plugin: `PrivacyPassphrase' not given for host `%s'", hd->name);
+ status = -1;
+ break;
+ }
+ }
+ }
break;
} /* while (status == 0) */
cb_data.data = hd;
cb_data.free_func = csnmp_host_definition_destroy;
- memset (&cb_interval, 0, sizeof (cb_interval));
- if (hd->interval != 0)
- cb_interval.tv_sec = (time_t) hd->interval;
+ CDTIME_T_TO_TIMESPEC (hd->interval, &cb_interval);
status = plugin_register_complex_read (/* group = */ NULL, cb_name,
csnmp_read_host, /* interval = */ &cb_interval,
static void csnmp_host_open_session (host_definition_t *host)
{
struct snmp_session sess;
+ int error;
if (host->sess_handle != NULL)
csnmp_host_close_session (host);
snmp_sess_init (&sess);
sess.peername = host->address;
- sess.community = (u_char *) host->community;
- sess.community_len = strlen (host->community);
- sess.version = (host->version == 1) ? SNMP_VERSION_1 : SNMP_VERSION_2c;
+ switch (host->version)
+ {
+ case 1:
+ sess.version = SNMP_VERSION_1;
+ break;
+ case 3:
+ sess.version = SNMP_VERSION_3;
+ break;
+ default:
+ sess.version = SNMP_VERSION_2c;
+ break;
+ }
+
+ if (host->version == 3)
+ {
+ sess.securityName = host->username;
+ sess.securityNameLen = strlen (host->username);
+ sess.securityLevel = host->security_level;
+
+ if (sess.securityLevel == SNMP_SEC_LEVEL_AUTHNOPRIV || sess.securityLevel == SNMP_SEC_LEVEL_AUTHPRIV)
+ {
+ sess.securityAuthProto = host->auth_protocol;
+ sess.securityAuthProtoLen = host->auth_protocol_len;
+ sess.securityAuthKeyLen = USM_AUTH_KU_LEN;
+ error = generate_Ku (sess.securityAuthProto,
+ sess.securityAuthProtoLen,
+ (u_char *) host->auth_passphrase,
+ strlen(host->auth_passphrase),
+ sess.securityAuthKey,
+ &sess.securityAuthKeyLen);
+ if (error != SNMPERR_SUCCESS) {
+ ERROR ("snmp plugin: host %s: Error generating Ku from auth_passphrase. (Error %d)", host->name, error);
+ }
+ }
+
+ if (sess.securityLevel == SNMP_SEC_LEVEL_AUTHPRIV)
+ {
+ sess.securityPrivProto = host->priv_protocol;
+ sess.securityPrivProtoLen = host->priv_protocol_len;
+ sess.securityPrivKeyLen = USM_PRIV_KU_LEN;
+ error = generate_Ku (sess.securityAuthProto,
+ sess.securityAuthProtoLen,
+ (u_char *) host->priv_passphrase,
+ strlen(host->priv_passphrase),
+ sess.securityPrivKey,
+ &sess.securityPrivKeyLen);
+ if (error != SNMPERR_SUCCESS) {
+ ERROR ("snmp plugin: host %s: Error generating Ku from priv_passphrase. (Error %d)", host->name, error);
+ }
+ }
+
+ if (host->context != NULL)
+ {
+ sess.contextName = host->context;
+ sess.contextNameLen = strlen (host->context);
+ }
+ }
+ else /* SNMPv1/2 "authenticates" with community string */
+ {
+ sess.community = (u_char *) host->community;
+ sess.community_len = strlen (host->community);
+ }
/* snmp_sess_open will copy the `struct snmp_session *'. */
host->sess_handle = snmp_sess_open (&sess);
snmp_error (&sess, NULL, NULL, &errstr);
ERROR ("snmp plugin: host %s: snmp_sess_open failed: %s",
- host->name, (errstr == NULL) ? "Unknown problem" : errstr);
+ host->name, (errstr == NULL) ? "Unknown problem" : errstr);
sfree (errstr);
}
} /* void csnmp_host_open_session */
/* TODO: Check if negative values wrap around. Problem: negative temperatures. */
static value_t csnmp_value_list_to_value (struct variable_list *vl, int type,
- double scale, double shift)
+ double scale, double shift,
+ const char *host_name, const char *data_name)
{
value_t ret;
uint64_t tmp_unsigned = 0;
memset (oid_buffer, 0, sizeof (oid_buffer));
snprint_objid (oid_buffer, sizeof (oid_buffer) - 1,
- vl->name, vl->name_length);
+ vl->name, vl->name_length);
#ifdef ASN_NULL
if (vl->type == ASN_NULL)
INFO ("snmp plugin: OID \"%s\" is undefined (type ASN_NULL)",
- oid_buffer);
+ oid_buffer);
else
#endif
- WARNING ("snmp plugin: I don't know the ASN type \"%i\" (OID: %s)",
- (int) vl->type, oid_buffer);
+ WARNING ("snmp plugin: I don't know the ASN type #%i "
+ "(OID: \"%s\", data block \"%s\", host block \"%s\")",
+ (int) vl->type, oid_buffer,
+ (data_name != NULL) ? data_name : "UNKNOWN",
+ (host_name != NULL) ? host_name : "UNKNOWN");
defined = 0;
}
string_length = sizeof (string) - 1;
if (vl->val_len < string_length)
- string_length = vl->val_len;
+ string_length = vl->val_len;
/* The strings we get from the Net-SNMP library may not be null
* terminated. That is why we're using `memcpy' here and not `strcpy'.
status = parse_value (string, &ret, type);
if (status != 0)
{
- ERROR ("snmp plugin: csnmp_value_list_to_value: Parsing string as %s failed: %s",
- DS_TYPE_TO_STRING (type), string);
+ ERROR ("snmp plugin: csnmp_value_list_to_value: Parsing string as %s failed: %s",
+ DS_TYPE_TO_STRING (type), string);
}
}
{
switch (type)
{
- case DS_TYPE_COUNTER:
- case DS_TYPE_DERIVE:
- case DS_TYPE_ABSOLUTE:
- memset (&ret, 0, sizeof (ret));
- break;
-
- case DS_TYPE_GAUGE:
- ret.gauge = NAN;
- break;
-
- default:
- ERROR ("snmp plugin: csnmp_value_list_to_value: Unknown "
- "data source type: %i.", type);
- ret.gauge = NAN;
+ case DS_TYPE_COUNTER:
+ case DS_TYPE_DERIVE:
+ case DS_TYPE_ABSOLUTE:
+ memset (&ret, 0, sizeof (ret));
+ break;
+
+ case DS_TYPE_GAUGE:
+ ret.gauge = NAN;
+ break;
+
+ default:
+ ERROR ("snmp plugin: csnmp_value_list_to_value: Unknown "
+ "data source type: %i.", type);
+ ret.gauge = NAN;
}
}
} /* if (vl->type == ASN_OCTET_STR) */
else
{
ERROR ("snmp plugin: csnmp_value_list_to_value: Unknown data source "
- "type: %i.", type);
+ "type: %i.", type);
ret.gauge = NAN;
}
return (ret);
} /* value_t csnmp_value_list_to_value */
-/* Returns true if all OIDs have left their subtree */
-static int csnmp_check_res_left_subtree (const host_definition_t *host,
- const data_definition_t *data,
- struct snmp_pdu *res)
-{
- struct variable_list *vb;
- int num_checked;
- int num_left_subtree;
- int i;
-
- vb = res->variables;
- if (vb == NULL)
- return (-1);
-
- num_checked = 0;
- num_left_subtree = 0;
-
- /* check all the variables and count how many have left their subtree */
- for (vb = res->variables, i = 0;
- (vb != NULL) && (i < data->values_len);
- vb = vb->next_variable, i++)
- {
- num_checked++;
- if (snmp_oid_ncompare (data->values[i].oid,
- data->values[i].oid_len,
- vb->name, vb->name_length,
- data->values[i].oid_len) != 0)
- num_left_subtree++;
- }
-
- /* check if enough variables have been returned */
- if (i < data->values_len)
- {
- ERROR ("snmp plugin: host %s: Expected %i variables, but got only %i",
- host->name, data->values_len, i);
- return (-1);
- }
-
- if (data->instance.oid.oid_len > 0)
- {
- if (vb == NULL)
- {
- ERROR ("snmp plugin: host %s: Expected one more variable for "
- "the instance..", host->name);
- return (-1);
- }
-
- num_checked++;
- if (snmp_oid_ncompare (data->instance.oid.oid,
- data->instance.oid.oid_len,
- vb->name, vb->name_length,
- data->instance.oid.oid_len) != 0)
- num_left_subtree++;
- }
-
- DEBUG ("snmp plugin: csnmp_check_res_left_subtree: %i of %i variables have "
- "left their subtree",
- num_left_subtree, num_checked);
- if (num_left_subtree >= num_checked)
- return (1);
- return (0);
-} /* int csnmp_check_res_left_subtree */
-
static int csnmp_strvbcopy_hexstring (char *dst, /* {{{ */
const struct variable_list *vb, size_t dst_size)
{
int status;
status = snprintf (buffer_ptr, buffer_free,
- (i == 0) ? "%02x" : ":%02x", (unsigned int) vb->val.bitstring[i]);
+ (i == 0) ? "%02x" : ":%02x", (unsigned int) vb->val.bitstring[i]);
if (status >= buffer_free)
{
static int csnmp_instance_list_add (csnmp_list_instances_t **head,
csnmp_list_instances_t **tail,
- const struct snmp_pdu *res)
+ const struct snmp_pdu *res,
+ const host_definition_t *hd, const data_definition_t *dd)
{
csnmp_list_instances_t *il;
struct variable_list *vb;
+ oid_t vb_name;
+ int status;
+ uint32_t i;
+ uint32_t is_matched;
/* Set vb on the last variable */
for (vb = res->variables;
if (vb == NULL)
return (-1);
- il = (csnmp_list_instances_t *) malloc (sizeof (csnmp_list_instances_t));
+ csnmp_oid_init (&vb_name, vb->name, vb->name_length);
+
+ il = malloc (sizeof (*il));
if (il == NULL)
{
ERROR ("snmp plugin: malloc failed.");
return (-1);
}
- il->subid = vb->name[vb->name_length - 1];
+ memset (il, 0, sizeof (*il));
il->next = NULL;
+ status = csnmp_oid_suffix (&il->suffix, &vb_name, &dd->instance.oid);
+ if (status != 0)
+ {
+ sfree (il);
+ return (status);
+ }
+
/* Get instance name */
if ((vb->type == ASN_OCTET_STR) || (vb->type == ASN_BIT_STR))
{
char *ptr;
csnmp_strvbcopy (il->instance, vb, sizeof (il->instance));
-
+ is_matched = 0;
+ for (i = 0; i < dd->ignores_len; i++)
+ {
+ status = fnmatch(dd->ignores[i], il->instance, 0);
+ if (status == 0)
+ {
+ if (dd->invert_match == 0)
+ {
+ sfree(il);
+ return 0;
+ }
+ else
+ {
+ is_matched = 1;
+ break;
+ }
+ }
+ }
+ if (dd->invert_match != 0 && is_matched == 0)
+ {
+ sfree(il);
+ return 0;
+ }
for (ptr = il->instance; *ptr != '\0'; ptr++)
{
if ((*ptr > 0) && (*ptr < 32))
- *ptr = ' ';
+ *ptr = ' ';
else if (*ptr == '/')
- *ptr = '_';
+ *ptr = '_';
}
DEBUG ("snmp plugin: il->instance = `%s';", il->instance);
}
else
{
- value_t val = csnmp_value_list_to_value (vb, DS_TYPE_COUNTER, 1.0, 0.0);
+ value_t val = csnmp_value_list_to_value (vb, DS_TYPE_COUNTER,
+ /* scale = */ 1.0, /* shift = */ 0.0, hd->name, dd->name);
ssnprintf (il->instance, sizeof (il->instance),
- "%llu", val.counter);
+ "%llu", val.counter);
}
/* TODO: Debugging output */
csnmp_table_values_t **value_table_ptr;
int i;
- oid subid;
- int have_more;
+ _Bool have_more;
+ oid_t current_suffix;
ds = plugin_get_ds (data->type);
if (!ds)
instance_list_ptr = instance_list;
- value_table_ptr = (csnmp_table_values_t **) malloc (sizeof (csnmp_table_values_t *)
- * data->values_len);
+ value_table_ptr = malloc (sizeof (*value_table_ptr) * data->values_len);
if (value_table_ptr == NULL)
return (-1);
for (i = 0; i < data->values_len; i++)
value_table_ptr[i] = value_table[i];
vl.values_len = ds->ds_num;
- vl.values = (value_t *) malloc (sizeof (value_t) * vl.values_len);
+ vl.values = malloc (sizeof (*vl.values) * vl.values_len);
if (vl.values == NULL)
{
ERROR ("snmp plugin: malloc failed.");
vl.interval = host->interval;
- subid = 0;
have_more = 1;
-
- while (have_more != 0)
+ memset (¤t_suffix, 0, sizeof (current_suffix));
+ while (have_more)
{
+ _Bool suffix_skipped = 0;
+
+ /* Determine next suffix to handle. */
if (instance_list != NULL)
{
- while ((instance_list_ptr != NULL)
- && (instance_list_ptr->subid < subid))
- instance_list_ptr = instance_list_ptr->next;
-
if (instance_list_ptr == NULL)
{
- have_more = 0;
- continue;
+ have_more = 0;
+ continue;
}
- else if (instance_list_ptr->subid > subid)
+
+ memcpy (¤t_suffix, &instance_list_ptr->suffix, sizeof (current_suffix));
+ }
+ else /* no instance configured */
+ {
+ csnmp_table_values_t *ptr = value_table_ptr[0];
+ if (ptr == NULL)
{
- subid = instance_list_ptr->subid;
- continue;
+ have_more = 0;
+ continue;
}
- } /* if (instance_list != NULL) */
+ memcpy (¤t_suffix, &ptr->suffix, sizeof (current_suffix));
+ }
+
+ /* Update all the value_table_ptr to point at the entry with the same
+ * trailing partial OID */
for (i = 0; i < data->values_len; i++)
{
while ((value_table_ptr[i] != NULL)
- && (value_table_ptr[i]->subid < subid))
- value_table_ptr[i] = value_table_ptr[i]->next;
+ && (csnmp_oid_compare (&value_table_ptr[i]->suffix, ¤t_suffix) < 0))
+ value_table_ptr[i] = value_table_ptr[i]->next;
if (value_table_ptr[i] == NULL)
{
- have_more = 0;
- break;
+ have_more = 0;
+ break;
}
- else if (value_table_ptr[i]->subid > subid)
+ else if (csnmp_oid_compare (&value_table_ptr[i]->suffix, ¤t_suffix) > 0)
{
- subid = value_table_ptr[i]->subid;
- break;
+ /* This suffix is missing in the subtree. Indicate this with the
+ * "suffix_skipped" flag and try the next instance / suffix. */
+ suffix_skipped = 1;
+ break;
}
} /* for (i = 0; i < columns; i++) */
- /* The subid has been increased - start scanning from the beginning
- * again.. */
- if (i < data->values_len)
+
+ if (!have_more)
+ break;
+
+ /* Matching the values failed. Start from the beginning again. */
+ if (suffix_skipped)
+ {
+ if (instance_list != NULL)
+ instance_list_ptr = instance_list_ptr->next;
+ else
+ value_table_ptr[0] = value_table_ptr[0]->next;
+
continue;
+ }
/* if we reach this line, all value_table_ptr[i] are non-NULL and are set
* to the same subid. instance_list_ptr is either NULL or points to the
for (i = 1; i < data->values_len; i++)
{
assert (value_table_ptr[i] != NULL);
- assert (value_table_ptr[i-1]->subid == value_table_ptr[i]->subid);
+ assert (csnmp_oid_compare (&value_table_ptr[i-1]->suffix,
+ &value_table_ptr[i]->suffix) == 0);
}
assert ((instance_list_ptr == NULL)
- || (instance_list_ptr->subid == value_table_ptr[0]->subid));
+ || (csnmp_oid_compare (&instance_list_ptr->suffix,
+ &value_table_ptr[0]->suffix) == 0));
#endif
sstrncpy (vl.type, data->type, sizeof (vl.type));
char temp[DATA_MAX_NAME_LEN];
if (instance_list_ptr == NULL)
- ssnprintf (temp, sizeof (temp), "%"PRIu32, (uint32_t) subid);
+ csnmp_oid_to_string (temp, sizeof (temp), ¤t_suffix);
else
- sstrncpy (temp, instance_list_ptr->instance, sizeof (temp));
+ sstrncpy (temp, instance_list_ptr->instance, sizeof (temp));
if (data->instance_prefix == NULL)
- sstrncpy (vl.type_instance, temp, sizeof (vl.type_instance));
+ sstrncpy (vl.type_instance, temp, sizeof (vl.type_instance));
else
- ssnprintf (vl.type_instance, sizeof (vl.type_instance), "%s%s",
- data->instance_prefix, temp);
+ ssnprintf (vl.type_instance, sizeof (vl.type_instance), "%s%s",
+ data->instance_prefix, temp);
}
for (i = 0; i < data->values_len; i++)
/* If we get here `vl.type_instance' and all `vl.values' have been set */
plugin_dispatch_values (&vl);
- subid++;
- } /* while (have_more != 0) */
+ if (instance_list != NULL)
+ instance_list_ptr = instance_list_ptr->next;
+ else
+ value_table_ptr[0] = value_table_ptr[0]->next;
+ } /* while (have_more) */
sfree (vl.values);
sfree (value_table_ptr);
struct variable_list *vb;
const data_set_t *ds;
- oid_t *oid_list;
- uint32_t oid_list_len;
+
+ uint32_t oid_list_len = (uint32_t) (data->values_len + 1);
+ /* Holds the last OID returned by the device. We use this in the GETNEXT
+ * request to proceed. */
+ oid_t oid_list[oid_list_len];
+ /* Set to false when an OID has left its subtree so we don't re-request it
+ * again. */
+ _Bool oid_list_todo[oid_list_len];
int status;
int i;
+ uint32_t j;
- /* `value_table' and `value_table_ptr' implement a linked list for each
- * value. `instance_list' and `instance_list_ptr' implement a linked list of
+ /* `value_list_head' and `value_list_tail' implement a linked list for each
+ * value. `instance_list_head' and `instance_list_tail' implement a linked list of
* instance names. This is used to jump gaps in the table. */
- csnmp_list_instances_t *instance_list;
- csnmp_list_instances_t *instance_list_ptr;
- csnmp_table_values_t **value_table;
- csnmp_table_values_t **value_table_ptr;
+ csnmp_list_instances_t *instance_list_head;
+ csnmp_list_instances_t *instance_list_tail;
+ csnmp_table_values_t **value_list_head;
+ csnmp_table_values_t **value_list_tail;
DEBUG ("snmp plugin: csnmp_read_table (host = %s, data = %s)",
host->name, data->name);
if (ds->ds_num != data->values_len)
{
ERROR ("snmp plugin: DataSet `%s' requires %i values, but config talks about %i",
- data->type, ds->ds_num, data->values_len);
+ data->type, ds->ds_num, data->values_len);
return (-1);
}
/* We need a copy of all the OIDs, because GETNEXT will destroy them. */
- oid_list_len = data->values_len + 1;
- oid_list = (oid_t *) malloc (sizeof (oid_t) * (oid_list_len));
- if (oid_list == NULL)
- {
- ERROR ("snmp plugin: csnmp_read_table: malloc failed.");
- return (-1);
- }
memcpy (oid_list, data->values, data->values_len * sizeof (oid_t));
if (data->instance.oid.oid_len > 0)
memcpy (oid_list + data->values_len, &data->instance.oid, sizeof (oid_t));
- else
+ else /* no InstanceFrom option specified. */
oid_list_len--;
- /* Allocate the `value_table' */
- value_table = (csnmp_table_values_t **) malloc (sizeof (csnmp_table_values_t *)
- * 2 * data->values_len);
- if (value_table == NULL)
+ for (j = 0; j < oid_list_len; j++)
+ oid_list_todo[j] = 1;
+
+ /* We're going to construct n linked lists, one for each "value".
+ * value_list_head will contain pointers to the heads of these linked lists,
+ * value_list_tail will contain pointers to the tail of the lists. */
+ value_list_head = calloc (data->values_len, sizeof (*value_list_head));
+ value_list_tail = calloc (data->values_len, sizeof (*value_list_tail));
+ if ((value_list_head == NULL) || (value_list_tail == NULL))
{
- ERROR ("snmp plugin: csnmp_read_table: malloc failed.");
- sfree (oid_list);
+ ERROR ("snmp plugin: csnmp_read_table: calloc failed.");
+ sfree (value_list_head);
+ sfree (value_list_tail);
return (-1);
}
- memset (value_table, '\0', sizeof (csnmp_table_values_t *) * 2 * data->values_len);
- value_table_ptr = value_table + data->values_len;
-
- instance_list = NULL;
- instance_list_ptr = NULL;
+
+ instance_list_head = NULL;
+ instance_list_tail = NULL;
status = 0;
while (status == 0)
{
+ int oid_list_todo_num;
+
req = snmp_pdu_create (SNMP_MSG_GETNEXT);
if (req == NULL)
{
break;
}
- for (i = 0; (uint32_t) i < oid_list_len; i++)
- snmp_add_null_var (req, oid_list[i].oid, oid_list[i].oid_len);
+ oid_list_todo_num = 0;
+ for (j = 0; j < oid_list_len; j++)
+ {
+ /* Do not rerequest already finished OIDs */
+ if (!oid_list_todo[j])
+ continue;
+ oid_list_todo_num++;
+ snmp_add_null_var (req, oid_list[j].oid, oid_list[j].oid_len);
+ }
+
+ if (oid_list_todo_num == 0)
+ {
+ /* The request is still empty - so we are finished */
+ DEBUG ("snmp plugin: all variables have left their subtree");
+ status = 0;
+ break;
+ }
res = NULL;
status = snmp_sess_synch_response (host->sess_handle, req, &res);
-
if ((status != STAT_SUCCESS) || (res == NULL))
{
char *errstr = NULL;
snmp_sess_error (host->sess_handle, NULL, NULL, &errstr);
c_complain (LOG_ERR, &host->complaint,
- "snmp plugin: host %s: snmp_sess_synch_response failed: %s",
- host->name, (errstr == NULL) ? "Unknown problem" : errstr);
+ "snmp plugin: host %s: snmp_sess_synch_response failed: %s",
+ host->name, (errstr == NULL) ? "Unknown problem" : errstr);
if (res != NULL)
- snmp_free_pdu (res);
+ snmp_free_pdu (res);
res = NULL;
sfree (errstr);
status = -1;
break;
}
+
status = 0;
assert (res != NULL);
c_release (LOG_INFO, &host->complaint,
- "snmp plugin: host %s: snmp_sess_synch_response successful.",
- host->name);
+ "snmp plugin: host %s: snmp_sess_synch_response successful.",
+ host->name);
vb = res->variables;
if (vb == NULL)
break;
}
- /* Check if all values (and possibly the instance) have left their
- * subtree */
- if (csnmp_check_res_left_subtree (host, data, res) != 0)
+ for (vb = res->variables, i = 0; (vb != NULL); vb = vb->next_variable, i++)
{
- status = 0;
- break;
- }
+ /* Calculate value index from todo list */
+ while (!oid_list_todo[i] && (i < oid_list_len))
+ i++;
- /* if an instance-OID is configured.. */
- if (data->instance.oid.oid_len > 0)
- {
- /* Allocate a new `csnmp_list_instances_t', insert the instance name and
- * add it to the list */
- if (csnmp_instance_list_add (&instance_list, &instance_list_ptr,
- res) != 0)
+ /* An instance is configured and the res variable we process is the
+ * instance value (last index) */
+ if ((data->instance.oid.oid_len > 0) && (i == data->values_len))
{
- ERROR ("snmp plugin: csnmp_instance_list_add failed.");
- status = -1;
- break;
+ if ((vb->type == SNMP_ENDOFMIBVIEW)
+ || (snmp_oid_ncompare (data->instance.oid.oid,
+ data->instance.oid.oid_len,
+ vb->name, vb->name_length,
+ data->instance.oid.oid_len) != 0))
+ {
+ DEBUG ("snmp plugin: host = %s; data = %s; Instance left its subtree.",
+ host->name, data->name);
+ oid_list_todo[i] = 0;
+ continue;
+ }
+
+ /* Allocate a new `csnmp_list_instances_t', insert the instance name and
+ * add it to the list */
+ if (csnmp_instance_list_add (&instance_list_head, &instance_list_tail,
+ res, host, data) != 0)
+ {
+ ERROR ("snmp plugin: csnmp_instance_list_add failed.");
+ status = -1;
+ break;
+ }
}
-
- /* Set vb on the last variable */
- for (vb = res->variables;
- (vb != NULL) && (vb->next_variable != NULL);
- vb = vb->next_variable)
- /* do nothing */;
- assert (vb != NULL);
-
- /* Copy OID to oid_list[data->values_len] */
- memcpy (oid_list[data->values_len].oid, vb->name,
- sizeof (oid) * vb->name_length);
- oid_list[data->values_len].oid_len = vb->name_length;
- }
-
- for (vb = res->variables, i = 0;
- (vb != NULL) && (i < data->values_len);
- vb = vb->next_variable, i++)
- {
- csnmp_table_values_t *vt;
-
- /* Check if we left the subtree */
- if (snmp_oid_ncompare (data->values[i].oid,
- data->values[i].oid_len,
- vb->name, vb->name_length,
- data->values[i].oid_len) != 0)
- {
- DEBUG ("snmp plugin: host = %s; data = %s; Value %i left its subtree.",
- host->name, data->name, i);
- continue;
- }
-
- if ((value_table_ptr[i] != NULL)
- && (vb->name[vb->name_length - 1] <= value_table_ptr[i]->subid))
+ else /* The variable we are processing is a normal value */
{
- DEBUG ("snmp plugin: host = %s; data = %s; i = %i; "
- "SUBID is not increasing.",
- host->name, data->name, i);
- continue;
+ csnmp_table_values_t *vt;
+ oid_t vb_name;
+ oid_t suffix;
+ int ret;
+
+ csnmp_oid_init (&vb_name, vb->name, vb->name_length);
+
+ /* Calculate the current suffix. This is later used to check that the
+ * suffix is increasing. This also checks if we left the subtree */
+ ret = csnmp_oid_suffix (&suffix, &vb_name, data->values + i);
+ if (ret != 0)
+ {
+ DEBUG ("snmp plugin: host = %s; data = %s; i = %i; "
+ "Value probably left its subtree.",
+ host->name, data->name, i);
+ oid_list_todo[i] = 0;
+ continue;
+ }
+
+ /* Make sure the OIDs returned by the agent are increasing. Otherwise our
+ * table matching algorithm will get confused. */
+ if ((value_list_tail[i] != NULL)
+ && (csnmp_oid_compare (&suffix, &value_list_tail[i]->suffix) <= 0))
+ {
+ DEBUG ("snmp plugin: host = %s; data = %s; i = %i; "
+ "Suffix is not increasing.",
+ host->name, data->name, i);
+ oid_list_todo[i] = 0;
+ continue;
+ }
+
+ vt = malloc (sizeof (*vt));
+ if (vt == NULL)
+ {
+ ERROR ("snmp plugin: malloc failed.");
+ status = -1;
+ break;
+ }
+ memset (vt, 0, sizeof (*vt));
+
+ vt->value = csnmp_value_list_to_value (vb, ds->ds[i].type,
+ data->scale, data->shift, host->name, data->name);
+ memcpy (&vt->suffix, &suffix, sizeof (vt->suffix));
+ vt->next = NULL;
+
+ if (value_list_tail[i] == NULL)
+ value_list_head[i] = vt;
+ else
+ value_list_tail[i]->next = vt;
+ value_list_tail[i] = vt;
}
- vt = (csnmp_table_values_t *) malloc (sizeof (csnmp_table_values_t));
- if (vt == NULL)
- {
- ERROR ("snmp plugin: malloc failed.");
- status = -1;
- break;
- }
-
- vt->subid = vb->name[vb->name_length - 1];
- vt->value = csnmp_value_list_to_value (vb, ds->ds[i].type,
- data->scale, data->shift);
- vt->next = NULL;
-
- if (value_table_ptr[i] == NULL)
- value_table[i] = vt;
- else
- value_table_ptr[i]->next = vt;
- value_table_ptr[i] = vt;
-
- /* Copy OID to oid_list[i + 1] */
+ /* Copy OID to oid_list[i] */
memcpy (oid_list[i].oid, vb->name, sizeof (oid) * vb->name_length);
oid_list[i].oid_len = vb->name_length;
- } /* for (i = data->values_len) */
+
+ } /* for (vb = res->variables ...) */
if (res != NULL)
snmp_free_pdu (res);
res = NULL;
if (status == 0)
- csnmp_dispatch_table (host, data, instance_list, value_table);
+ csnmp_dispatch_table (host, data, instance_list_head, value_list_head);
/* Free all allocated variables here */
- while (instance_list != NULL)
+ while (instance_list_head != NULL)
{
- instance_list_ptr = instance_list->next;
- sfree (instance_list);
- instance_list = instance_list_ptr;
+ csnmp_list_instances_t *next = instance_list_head->next;
+ sfree (instance_list_head);
+ instance_list_head = next;
}
for (i = 0; i < data->values_len; i++)
{
- csnmp_table_values_t *tmp;
- while (value_table[i] != NULL)
+ while (value_list_head[i] != NULL)
{
- tmp = value_table[i]->next;
- sfree (value_table[i]);
- value_table[i] = tmp;
+ csnmp_table_values_t *next = value_list_head[i]->next;
+ sfree (value_list_head[i]);
+ value_list_head[i] = next;
}
}
- sfree (value_table);
- sfree (oid_list);
+ sfree (value_list_head);
+ sfree (value_list_tail);
return (0);
} /* int csnmp_read_table */
if (ds->ds_num != data->values_len)
{
ERROR ("snmp plugin: DataSet `%s' requires %i values, but config talks about %i",
- data->type, ds->ds_num, data->values_len);
+ data->type, ds->ds_num, data->values_len);
return (-1);
}
snmp_sess_error (host->sess_handle, NULL, NULL, &errstr);
ERROR ("snmp plugin: host %s: snmp_sess_synch_response failed: %s",
- host->name, (errstr == NULL) ? "Unknown problem" : errstr);
+ host->name, (errstr == NULL) ? "Unknown problem" : errstr);
if (res != NULL)
snmp_free_pdu (res);
#if COLLECT_DEBUG
char buffer[1024];
snprint_variable (buffer, sizeof (buffer),
- vb->name, vb->name_length, vb);
+ vb->name, vb->name_length, vb);
DEBUG ("snmp plugin: Got this variable: %s", buffer);
#endif /* COLLECT_DEBUG */
for (i = 0; i < data->values_len; i++)
if (snmp_oid_compare (data->values[i].oid, data->values[i].oid_len,
- vb->name, vb->name_length) == 0)
- vl.values[i] = csnmp_value_list_to_value (vb, ds->ds[i].type,
- data->scale, data->shift);
+ vb->name, vb->name_length) == 0)
+ vl.values[i] = csnmp_value_list_to_value (vb, ds->ds[i].type,
+ data->scale, data->shift, host->name, data->name);
} /* for (res->variables) */
if (res != NULL)
static int csnmp_read_host (user_data_t *ud)
{
host_definition_t *host;
- time_t time_start;
- time_t time_end;
+ cdtime_t time_start;
+ cdtime_t time_end;
int status;
int success;
int i;
host = ud->data;
if (host->interval == 0)
- host->interval = interval_g;
+ host->interval = plugin_get_interval ();
- time_start = time (NULL);
- DEBUG ("snmp plugin: csnmp_read_host (%s) started at %u;", host->name,
- (unsigned int) time_start);
+ time_start = cdtime ();
if (host->sess_handle == NULL)
csnmp_host_open_session (host);
success++;
}
- time_end = time (NULL);
- DEBUG ("snmp plugin: csnmp_read_host (%s) finished at %u;", host->name,
- (unsigned int) time_end);
- if ((uint32_t) (time_end - time_start) > host->interval)
+ time_end = cdtime ();
+ if ((time_end - time_start) > host->interval)
{
- WARNING ("snmp plugin: Host `%s' should be queried every %"PRIu32
- " seconds, but reading all values takes %u seconds.",
- host->name, host->interval, (unsigned int) (time_end - time_start));
+ WARNING ("snmp plugin: Host `%s' should be queried every %.3f "
+ "seconds, but reading all values takes %.3f seconds.",
+ host->name,
+ CDTIME_T_TO_DOUBLE (host->interval),
+ CDTIME_T_TO_DOUBLE (time_end - time_start));
}
if (success == 0)
sfree (data_this->name);
sfree (data_this->type);
sfree (data_this->values);
+ sfree (data_this->ignores);
sfree (data_this);
data_this = data_next;
projects / collectd.git / blobdiff