struct data_definition_s *next;
char **ignores;
size_t ignores_len;
- int invert_match;
+ _Bool invert_match;
};
typedef struct data_definition_s data_definition_t;
char *name;
char *address;
int version;
+ cdtime_t timeout;
+ int retries;
/* snmpv1/2 options */
char *community;
return 0;
} /* int csnmp_config_add_data_blacklist */
-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_BOOLEAN)) {
- WARNING("snmp plugin: `InvertMatch' needs exactly one boolean argument.");
- return -1;
- }
-
- dd->invert_match = ci->values[0].value.boolean ? 1 : 0;
-
- return 0;
-} /* int csnmp_config_add_data_blacklist_match_inverted */
-
static int csnmp_config_add_data(oconfig_item_t *ci) {
- data_definition_t *dd;
- int status = 0;
-
- dd = calloc(1, sizeof(*dd));
+ data_definition_t *dd = calloc(1, sizeof(*dd));
if (dd == NULL)
return -1;
- status = cf_util_get_string(ci, &dd->name);
+ int status = cf_util_get_string(ci, &dd->name);
if (status != 0) {
- free(dd);
+ sfree(dd);
return -1;
}
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);
+ status = cf_util_get_boolean(option, &dd->invert_match);
else {
WARNING("snmp plugin: Option `%s' not allowed here.", option->key);
status = -1;
hd->sess_handle = NULL;
hd->interval = 0;
+ /* These mean that we have not set a timeout or retry value */
+ hd->timeout = 0;
+ hd->retries = -1;
+
for (int i = 0; i < ci->children_num; i++) {
oconfig_item_t *option = ci->children + i;
status = 0;
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("Timeout", option->key) == 0)
+ cf_util_get_cdtime(option, &hd->timeout);
+ else if (strcasecmp("Retries", option->key) == 0)
+ cf_util_get_int(option, &hd->retries);
else if (strcasecmp("Collect", option->key) == 0)
csnmp_config_add_host_collect(hd, option);
else if (strcasecmp("Interval", option->key) == 0)
sess.community_len = strlen(host->community);
}
+ /* Set timeout & retries, if they have been changed from the default */
+ if (host->timeout != 0) {
+ /* net-snmp expects microseconds */
+ sess.timeout = CDTIME_T_TO_US(host->timeout);
+ }
+ if (host->retries >= 0) {
+ sess.retries = host->retries;
+ }
+
/* snmp_sess_open will copy the `struct snmp_session *'. */
host->sess_handle = snmp_sess_open(&sess);
struct variable_list *vb;
oid_t vb_name;
int status;
- uint32_t is_matched;
/* Set vb on the last variable */
for (vb = res->variables; (vb != NULL) && (vb->next_variable != NULL);
char *ptr;
csnmp_strvbcopy(il->instance, vb, sizeof(il->instance));
- is_matched = 0;
+ _Bool is_matched = 0;
for (uint32_t i = 0; i < dd->ignores_len; i++) {
status = fnmatch(dd->ignores[i], il->instance, 0);
if (status == 0) {
- if (dd->invert_match == 0) {
+ if (!dd->invert_match) {
sfree(il);
return 0;
} else {
}
}
}
- if (dd->invert_match != 0 && is_matched == 0) {
+ if (dd->invert_match && !is_matched) {
sfree(il);
return 0;
}
status = 0;
while (status == 0) {
- int oid_list_todo_num;
-
req = snmp_pdu_create(SNMP_MSG_GETNEXT);
if (req == NULL) {
ERROR("snmp plugin: snmp_pdu_create failed.");
break;
}
- oid_list_todo_num = 0;
+ size_t oid_list_todo_num = 0;
+ size_t var_idx[oid_list_len];
+ memset(var_idx, 0, sizeof(var_idx));
+
for (i = 0; i < oid_list_len; i++) {
/* Do not rerequest already finished OIDs */
if (!oid_list_todo[i])
continue;
- oid_list_todo_num++;
snmp_add_null_var(req, oid_list[i].oid, oid_list[i].oid_len);
+ var_idx[oid_list_todo_num] = i;
+ oid_list_todo_num++;
}
if (oid_list_todo_num == 0) {
/* The request is still empty - so we are finished */
DEBUG("snmp plugin: all variables have left their subtree");
+ snmp_free_pdu(req);
status = 0;
break;
}
res = NULL;
status = snmp_sess_synch_response(host->sess_handle, req, &res);
+
+ /* snmp_sess_synch_response always frees our req PDU */
+ req = NULL;
+
if ((status != STAT_SUCCESS) || (res == NULL)) {
char *errstr = NULL;
snmp_free_pdu(res);
res = NULL;
- /* snmp_synch_response already freed our PDU */
- req = NULL;
sfree(errstr);
csnmp_host_close_session(host);
NOTICE("snmp plugin: host %s; data %s: OID `%s` failed: %s", host->name,
data->name, oid_buffer, snmp_errstring(res->errstat));
- /* Calculate value index from todo list and skip OID found */
- i = 0;
- size_t j = 1;
- for (;;) {
- while ((i < oid_list_len) && !oid_list_todo[i])
- i++;
-
- if (j == res->errindex)
- break;
-
- i++;
- j++;
- }
-
+ /* Get value index from todo list and skip OID found */
+ assert(res->errindex <= oid_list_todo_num);
+ i = var_idx[res->errindex - 1];
assert(i < oid_list_len);
oid_list_todo[i] = 0;
snmp_free_pdu(res);
res = NULL;
- if (req != NULL)
- snmp_free_pdu(req);
- req = NULL;
-
if (status == 0)
csnmp_dispatch_table(host, data, instance_list_head, value_list_head);