if (hd->name != NULL)
{
DEBUG ("snmp plugin: Destroying host definition for host `%s'.",
- hd->name);
+ hd->name);
}
csnmp_host_close_session (hd);
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))
+ dd->instance.oid.oid, &dd->instance.oid.oid_len))
{
ERROR ("snmp plugin: read_objid (%s) failed.",
- ci->values[0].value.string);
+ ci->values[0].value.string);
return (-1);
}
}
{
/* Instance is a simple string */
sstrncpy (dd->instance.string, ci->values[0].value.string,
- sizeof (dd->instance.string));
+ sizeof (dd->instance.string));
}
return (0);
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);
}
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;
if ((ci->values_num != 1)
|| (ci->values[0].type != OCONFIG_TYPE_NUMBER))
{
- WARNING ("snmp plugin: The `Scale' config option needs exactly one number argument.");
+ WARNING ("snmp plugin: The `Shift' config option needs exactly one number argument.");
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++;
if (hd->interval != 0)
cb_interval.tv_sec = (time_t) hd->interval;
- status = plugin_register_complex_read (cb_name, csnmp_read_host,
- /* interval = */ &cb_interval, /* user_data = */ &cb_data);
+ status = plugin_register_complex_read (/* group = */ NULL, cb_name,
+ csnmp_read_host, /* interval = */ &cb_interval,
+ /* user_data = */ &cb_data);
if (status != 0)
{
ERROR ("snmp plugin: Registering complex read function failed.");
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 */
value_t ret;
uint64_t tmp_unsigned = 0;
int64_t tmp_signed = 0;
- int defined = 1;
+ _Bool defined = 1;
+ /* Set to true when the original SNMP type appears to have been signed. */
+ _Bool prefer_signed = 0;
if ((vl->type == ASN_INTEGER)
|| (vl->type == ASN_UINTEGER)
{
tmp_unsigned = (uint32_t) *vl->val.integer;
tmp_signed = (int32_t) *vl->val.integer;
- DEBUG ("snmp plugin: Parsed int32 value is %"PRIi64".", tmp_signed);
+
+ if ((vl->type == ASN_INTEGER)
+ || (vl->type == ASN_GAUGE))
+ prefer_signed = 1;
+
+ DEBUG ("snmp plugin: Parsed int32 value is %"PRIu64".", tmp_unsigned);
}
else if (vl->type == ASN_COUNTER64)
{
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);
+ (int) vl->type, oid_buffer);
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 if (type == DS_TYPE_GAUGE)
{
- ret.gauge = NAN;
- if (defined != 0)
+ if (!defined)
+ ret.gauge = NAN;
+ else if (prefer_signed)
ret.gauge = (scale * tmp_signed) + shift;
+ else
+ ret.gauge = (scale * tmp_unsigned) + shift;
}
else if (type == DS_TYPE_DERIVE)
- ret.derive = (derive_t) tmp_signed;
+ {
+ if (prefer_signed)
+ ret.derive = (derive_t) tmp_signed;
+ else
+ ret.derive = (derive_t) tmp_unsigned;
+ }
else if (type == DS_TYPE_ABSOLUTE)
+ {
ret.absolute = (absolute_t) tmp_unsigned;
+ }
else
{
ERROR ("snmp plugin: csnmp_value_list_to_value: Unknown data source "
- "type: %i.", type);
+ "type: %i.", type);
ret.gauge = NAN;
}
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)
+
+ if ((vb->type == SNMP_ENDOFMIBVIEW)
+ || (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++;
}
if (i < data->values_len)
{
ERROR ("snmp plugin: host %s: Expected %i variables, but got only %i",
- host->name, data->values_len, i);
+ host->name, data->values_len, i);
return (-1);
}
if (vb == NULL)
{
ERROR ("snmp plugin: host %s: Expected one more variable for "
- "the instance..", host->name);
+ "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)
+ data->instance.oid.oid_len,
+ vb->name, vb->name_length,
+ data->instance.oid.oid_len) != 0)
num_left_subtree++;
}
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)
{
for (i = 0; i < num_chars; i++)
{
/* Check for control characters. */
- if ((src[i] >= 0) && (src[i] < 32))
+ if ((unsigned char)src[i] < 32)
return (csnmp_strvbcopy_hexstring (dst, vb, dst_size));
dst[i] = src[i];
}
if (vb == NULL)
return (-1);
- il = (csnmp_list_instances_t *) malloc (sizeof (csnmp_list_instances_t));
+ il = malloc (sizeof (*il));
if (il == NULL)
{
ERROR ("snmp plugin: malloc failed.");
return (-1);
}
+ /* XXX copy entire OID */
il->subid = vb->name[vb->name_length - 1];
il->next = NULL;
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);
}
{
value_t val = csnmp_value_list_to_value (vb, DS_TYPE_COUNTER, 1.0, 0.0);
ssnprintf (il->instance, sizeof (il->instance),
- "%llu", val.counter);
+ "%llu", val.counter);
}
/* TODO: Debugging output */
if (instance_list_ptr == NULL)
{
- have_more = 0;
- continue;
+ have_more = 0;
+ continue;
}
else if (instance_list_ptr->subid > subid)
{
subid = instance_list_ptr->subid;
- continue;
+ continue;
}
} /* if (instance_list != NULL) */
if (value_table_ptr[i] == NULL)
{
- have_more = 0;
- break;
+ have_more = 0;
+ break;
}
else if (value_table_ptr[i]->subid > subid)
{
subid = value_table_ptr[i]->subid;
- break;
+ break;
}
} /* for (i = 0; i < columns; i++) */
/* The subid has been increased - start scanning from the beginning
if (instance_list_ptr == NULL)
ssnprintf (temp, sizeof (temp), "%"PRIu32, (uint32_t) subid);
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++)
int status;
int i;
- /* `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);
}
else
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)
+ /* 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.");
+ ERROR ("snmp plugin: csnmp_read_table: calloc failed.");
sfree (oid_list);
+ 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)
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 = 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;
}
- /* if an instance-OID is configured.. */
+ /* Copy the OID of the value used as instance to oid_list, if an instance
+ * 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)
+ if (csnmp_instance_list_add (&instance_list_head, &instance_list_tail,
+ res, &data->instance.oid) != 0)
{
- ERROR ("snmp plugin: csnmp_instance_list_add failed.");
- status = -1;
- break;
+ ERROR ("snmp plugin: csnmp_instance_list_add failed.");
+ status = -1;
+ break;
}
- /* Set vb on the last variable */
+ /* The instance OID is added to the list of OIDs to GET from the
+ * snmp agent last, so set vb on the last variable returned and copy
+ * that OID. */
for (vb = res->variables;
- (vb != NULL) && (vb->next_variable != NULL);
- vb = vb->next_variable)
- /* do nothing */;
+ (vb != NULL) && (vb->next_variable != NULL);
+ vb = vb->next_variable)
+ /* do nothing */;
assert (vb != NULL);
- /* Copy OID to oid_list[data->values_len] */
+ /* Copy the OID of the instance value to oid_list[data->values_len] */
memcpy (oid_list[data->values_len].oid, vb->name,
- sizeof (oid) * vb->name_length);
+ sizeof (oid) * vb->name_length);
oid_list[data->values_len].oid_len = vb->name_length;
}
+ /* Iterate over all the (non-instance) values returned by the agent. The
+ * (i < value_len) check will make sure we're not handling the instance OID
+ * twice. */
for (vb = res->variables, i = 0;
- (vb != NULL) && (i < data->values_len);
- vb = vb->next_variable, i++)
+ (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)
+ 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;
+ 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))
+ if ((value_list_tail[i] != NULL)
+ && (vb->name[vb->name_length - 1] <= value_list_tail[i]->subid))
{
- DEBUG ("snmp plugin: host = %s; data = %s; i = %i; "
- "SUBID is not increasing.",
- host->name, data->name, i);
- continue;
+ DEBUG ("snmp plugin: host = %s; data = %s; i = %i; "
+ "SUBID is not increasing.",
+ host->name, data->name, i);
+ continue;
}
vt = (csnmp_table_values_t *) malloc (sizeof (csnmp_table_values_t));
if (vt == NULL)
{
- ERROR ("snmp plugin: malloc failed.");
- status = -1;
- break;
+ 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);
+ data->scale, data->shift);
vt->next = NULL;
- if (value_table_ptr[i] == NULL)
- value_table[i] = vt;
+ if (value_list_tail[i] == NULL)
+ value_list_head[i] = vt;
else
- value_table_ptr[i]->next = vt;
- value_table_ptr[i] = vt;
+ value_list_tail[i]->next = vt;
+ value_list_tail[i] = vt;
/* Copy OID to oid_list[i + 1] */
memcpy (oid_list[i].oid, vb->name, sizeof (oid) * vb->name_length);
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 (value_list_head);
+ sfree (value_list_tail);
sfree (oid_list);
return (0);
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);
} /* for (res->variables) */
if (res != NULL)
if ((uint32_t) (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));
+ " seconds, but reading all values takes %u seconds.",
+ host->name, host->interval, (unsigned int) (time_end - time_start));
}
if (success == 0)
projects / collectd.git / blobdiff