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#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-features.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <net-snmp/agent/snmp_get_statistic.h>
netsnmp_feature_provide(helper_statistics)
netsnmp_feature_child_of(helper_statistics, mib_helpers)
#ifdef NETSNMP_FEATURE_REQUIRE_HELPER_STATISTICS
/* if we're not needed, then neither is this */
netsnmp_feature_require(statistics)
#endif
#ifndef NETSNMP_FEATURE_REMOVE_HELPER_STATISTICS
static int
netsnmp_get_statistic_helper_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
if (reqinfo->mode == MODE_GET) {
const oid idx = requests->requestvb->name[reginfo->rootoid_len - 2] +
(oid)(uintptr_t)handler->myvoid;
uint32_t value;
if (idx > NETSNMP_STAT_MAX_STATS)
return SNMP_ERR_GENERR;
value = snmp_get_statistic(idx);
snmp_set_var_typed_value(requests->requestvb, ASN_COUNTER,
(const u_char*)&value, sizeof(value));
return SNMP_ERR_NOERROR;
}
return SNMP_ERR_GENERR;
}
static netsnmp_mib_handler *
netsnmp_get_statistic_handler(int offset)
{
netsnmp_mib_handler *ret =
netsnmp_create_handler("get_statistic",
netsnmp_get_statistic_helper_handler);
if (ret) {
ret->flags |= MIB_HANDLER_AUTO_NEXT;
ret->myvoid = (void*)(uintptr_t)offset;
}
return ret;
}
int
netsnmp_register_statistic_handler(netsnmp_handler_registration *reginfo,
oid start, int begin, int end)
{
netsnmp_inject_handler(reginfo,
netsnmp_get_statistic_handler(begin - start));
return netsnmp_register_scalar_group(reginfo, start, start + (end - begin));
}
#else /* !NETSNMP_FEATURE_REMOVE_HELPER_GET_STATISTICS */
netsnmp_feature_unused(helper_statistics);
#endif /* !NETSNMP_FEATURE_REMOVE_HELPER_GET_STATISTICS */
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