/** * Get snmp value to the struct my_oid_result. * Author : lining 15810423651 [email protected] * @param netsnmp_variable_list *vars : the return pdu variable value. * @param my_oid_result : the struct my_oid_result. * @return void. */ void get_bulkwalk_oid_values(netsnmp_variable_list *vars, my_oid_result *oid_result) { unsigned int count = 0; oid_result->oid_name_length = vars->name_length; for(count=0; count < vars->name_length; count++) { oid_result->oid_name[count] = *(vars->name+count); } oid_result->val_len = vars->val_len; oid_result->type = vars->type; if(vars->type == SNMP_NOSUCHOBJECT) { return; } if(vars->type == SNMP_NOSUCHINSTANCE) { return; } if(vars->type == SNMP_ENDOFMIBVIEW) { return; } if (vars->type == ASN_OCTET_STR) { for(count=0; count < vars->val_len; count++) { oid_result->val.string[count] = vars->val.string[count]; } return; } if (vars->type == ASN_BIT_STR) { sprintf(oid_result->val.bitstring, "%s" ,vars->val.bitstring); return; } if (vars->type == ASN_OPAQUE) { return; } if (vars->type == ASN_INTEGER) { oid_result->val.integer = *vars->val.integer; return; } if (vars->type == ASN_UINTEGER) { oid_result->val.integer = *vars->val.integer; return; } if (vars->type == ASN_OBJECT_ID) { oid_result->objid_length = vars->val_len/sizeof(oid); for(count=0; count < oid_result->objid_length; count++) { oid_result->val.objid[count] = vars->val.objid[count]; } return; } if (vars->type == ASN_TIMETICKS) { oid_result->val.integer = *(u_long *)vars->val.integer; return; } if (vars->type == ASN_IPADDRESS) { oid_result->val.string[0] = vars->val.string[0]; oid_result->val.string[1] = vars->val.string[1]; oid_result->val.string[2] = vars->val.string[2]; oid_result->val.string[3] = vars->val.string[3]; return; } if (vars->type == ASN_OPAQUE_I64) { printI64(oid_result->val.string, vars->val.counter64); return; } if (vars->type == ASN_OPAQUE_COUNTER64 || vars->type == ASN_OPAQUE_U64 || vars->type == ASN_COUNTER64) { printU64(oid_result->val.string, vars->val.counter64); return; } if (vars->type == ASN_COUNTER) { oid_result->val.integer = *vars->val.integer; return; } if (vars->type == ASN_GAUGE) { oid_result->val.integer = *vars->val.integer; return; } if (vars->type == ASN_OPAQUE_FLOAT) { oid_result->val.floatVal = *vars->val.floatVal; return; } if (vars->type == ASN_OPAQUE_DOUBLE) { oid_result->val.doubleVal = *vars->val.doubleVal; return; } if (vars->type == ASN_NULL) { return; } }
/** * Get snmp value to the structure my_poid_result-> * Author : lining 15810423651 [email protected] * @param netsnmp_variable_list *vars : the return pdu variable value. * @param my_oid_result : the structure my_poid_result-> * @return void. */ void get_oid_value(netsnmp_variable_list *vars, my_oid_result **oid_result) { unsigned int count = 0; (*oid_result)->oid_name_length = vars->name_length; for(count=0; count < vars->name_length; count++) { (*oid_result)->oid_name[count] = *(vars->name+count); } (*oid_result)->val_len = vars->val_len; (*oid_result)->type = vars->type; if(vars->type == SNMP_NOSUCHOBJECT) { return; } if(vars->type == SNMP_NOSUCHINSTANCE) { return; } if(vars->type == SNMP_ENDOFMIBVIEW) { return; } if (vars->type == ASN_OCTET_STR) { int hex = 0; int x; u_char * cp; int allow_realloc = 1; u_char *buf = NULL; size_t buf_len = 256, out_len = 0; for (cp = vars->val.string, x = 0; x < (int)vars->val_len; x++, cp++) { if (!isprint(*cp) && !isspace(*cp)) { hex = 1; } } if(!hex) { for(count=0; count < vars->val_len; count++) { (*oid_result)->val.string[count] = vars->val.string[count]; } return; } else { buf = (u_char *) calloc(buf_len, 1); sprint_realloc_hexstring(&buf, &buf_len, &out_len, allow_realloc, vars->val.string, vars->val_len); for(count=0; count < strlen(buf); count++) { (*oid_result)->val.string[count] = buf[count]; } (*oid_result)->val.string[strlen(buf)] = 0; free(buf); return; } } if (vars->type == ASN_BIT_STR) { sprintf((*oid_result)->val.bitstring, "%s" ,vars->val.bitstring); return; } if (vars->type == ASN_OPAQUE) { return; } if (vars->type == ASN_INTEGER) { (*oid_result)->val.integer = *vars->val.integer; (*oid_result)->val.integer = (*oid_result)->val.integer & 0x00000000ffffffff; return; } if (vars->type == ASN_UINTEGER) { (*oid_result)->val.integer = *vars->val.integer; (*oid_result)->val.integer = (*oid_result)->val.integer & 0x00000000ffffffff; return; } if (vars->type == ASN_OBJECT_ID) { (*oid_result)->objid_length = vars->val_len/sizeof(oid); for(count=0; count < (*oid_result)->objid_length; count++) { (*oid_result)->val.objid[count] = vars->val.objid[count]; } return; } if (vars->type == ASN_TIMETICKS) { (*oid_result)->val.integer = *(u_long *)vars->val.integer; return; } if (vars->type == ASN_IPADDRESS) { (*oid_result)->val.string[0] = vars->val.string[0]; (*oid_result)->val.string[1] = vars->val.string[1]; (*oid_result)->val.string[2] = vars->val.string[2]; (*oid_result)->val.string[3] = vars->val.string[3]; return; } if (vars->type == ASN_OPAQUE_I64) { printI64((*oid_result)->val.string, vars->val.counter64); return; } if (vars->type == ASN_OPAQUE_COUNTER64 || vars->type == ASN_OPAQUE_U64 || vars->type == ASN_COUNTER64) { printU64((*oid_result)->val.string, vars->val.counter64); return; } if (vars->type == ASN_COUNTER) { (*oid_result)->val.integer = *vars->val.integer; return; } if (vars->type == ASN_GAUGE) { (*oid_result)->val.integer = *vars->val.integer; return; } if (vars->type == ASN_OPAQUE_FLOAT) { (*oid_result)->val.floatVal = *vars->val.floatVal; return; } if (vars->type == ASN_OPAQUE_DOUBLE) { (*oid_result)->val.doubleVal = *vars->val.doubleVal; return; } if (vars->type == ASN_NULL) { return; } return; }
/* Handling of results */
static void noit_snmp_log_results(noit_module_t *self, noit_check_t *check,
struct snmp_pdu *pdu) {
struct check_info *info = check->closure;
struct variable_list *vars;
struct timeval duration;
char buff[128];
stats_t current;
int nresults = 0;
noit_check_stats_clear(check, ¤t);
if(pdu)
for(vars = pdu->variables; vars; vars = vars->next_variable)
nresults++;
gettimeofday(¤t.whence, NULL);
sub_timeval(current.whence, check->last_fire_time, &duration);
current.duration = duration.tv_sec * 1000 + duration.tv_usec / 1000;
current.available = pdu ? NP_AVAILABLE : NP_UNAVAILABLE;
current.state = (nresults == info->noids) ? NP_GOOD : NP_BAD;
snprintf(buff, sizeof(buff), "%d/%d gets", nresults, info->noids);
current.status = buff;
/* We have no results over which to iterate. */
if(!pdu) {
noit_check_set_stats(check, ¤t);
return;
}
/* manipulate the information ourselves */
nresults = 0;
for(vars = pdu->variables; vars; vars = vars->next_variable) {
char *sp;
int oid_idx;
double float_conv;
u_int64_t u64;
int64_t i64;
char *endptr;
char varbuff[256];
/* find the oid to which this is the response */
oid_idx = nresults; /* our current idx is the most likely */
if(info->oids[oid_idx].oidlen != vars->name_length ||
memcmp(info->oids[oid_idx].oid, vars->name,
vars->name_length * sizeof(oid))) {
/* Not the most obvious guess */
for(oid_idx = info->noids - 1; oid_idx >= 0; oid_idx--) {
if(info->oids[oid_idx].oidlen == vars->name_length &&
memcmp(info->oids[oid_idx].oid, vars->name,
vars->name_length * sizeof(oid))) break;
}
}
if(oid_idx < 0) {
snprint_variable(varbuff, sizeof(varbuff),
vars->name, vars->name_length, vars);
noitL(nlerr, "Unexpected oid results to %s`%s`%s: %s\n",
check->target, check->module, check->name, varbuff);
nresults++;
continue;
}
#define SETM(a,b) noit_stats_set_metric(check, ¤t, \
info->oids[oid_idx].confname, a, b)
if(info->oids[oid_idx].type_should_override) {
snprint_value(varbuff, sizeof(varbuff), vars->name, vars->name_length, vars);
sp = strchr(varbuff, ' ');
if(sp) sp++;
noit_stats_set_metric_coerce(check, ¤t, info->oids[oid_idx].confname,
info->oids[oid_idx].type_override,
sp);
}
else {
switch(vars->type) {
case ASN_OCTET_STR:
sp = malloc(1 + vars->val_len);
memcpy(sp, vars->val.string, vars->val_len);
sp[vars->val_len] = '\0';
SETM(METRIC_STRING, sp);
free(sp);
break;
case ASN_INTEGER:
case ASN_GAUGE:
SETM(METRIC_INT32, vars->val.integer);
break;
case ASN_TIMETICKS:
case ASN_COUNTER:
SETM(METRIC_UINT32, vars->val.integer);
break;
case ASN_INTEGER64:
printI64(varbuff, vars->val.counter64);
i64 = strtoll(varbuff, &endptr, 10);
SETM(METRIC_INT64, (varbuff == endptr) ? NULL : &i64);
break;
case ASN_COUNTER64:
printU64(varbuff, vars->val.counter64);
u64 = strtoull(varbuff, &endptr, 10);
SETM(METRIC_UINT64, (varbuff == endptr) ? NULL : &u64);
break;
case ASN_FLOAT:
if(vars->val.floatVal) float_conv = *(vars->val.floatVal);
SETM(METRIC_DOUBLE, vars->val.floatVal ? &float_conv : NULL);
break;
case ASN_DOUBLE:
SETM(METRIC_DOUBLE, vars->val.doubleVal);
break;
case SNMP_NOSUCHOBJECT:
case SNMP_NOSUCHINSTANCE:
SETM(METRIC_STRING, NULL);
break;
default:
snprint_variable(varbuff, sizeof(varbuff), vars->name, vars->name_length, vars);
/* Advance passed the first space and use that unless there
* is no space or we have no more string left.
*/
sp = strchr(varbuff, ' ');
if(sp) sp++;
SETM(METRIC_STRING, (sp && *sp) ? sp : NULL);
}
}
nresults++;
}
noit_check_set_stats(check, ¤t);
}
