#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>

#include "sctpScalars_common.h"

#include <stdio.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <stdint.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/sctp.h>
#include <netinet/sctp_constants.h>

void
netsnmp_access_sctp_stats_arch_init()
{
}

int
netsnmp_access_sctp_stats_arch_load(netsnmp_sctp_stats * sctp_stats)
{
  struct sctpstat stat;
  size_t len = sizeof(struct sctpstat);

  if (sysctlbyname("net.inet.sctp.stats", &stat, &len, NULL, 0) < 0) {
	return(-1);
  }
  memset(sctp_stats, 0, sizeof(netsnmp_sctp_stats));
  sctp_stats->curr_estab = stat.sctps_currestab;
  sctp_stats->active_estabs = stat.sctps_activeestab;
  sctp_stats->passive_estabs = stat.sctps_passiveestab;
  sctp_stats->aborteds = stat.sctps_aborted;
  sctp_stats->shutdowns = stat.sctps_shutdown;
  sctp_stats->out_of_blues = stat.sctps_outoftheblue;
  sctp_stats->checksum_errors = stat.sctps_checksumerrors;
  sctp_stats->out_ctrl_chunks.low = stat.sctps_outcontrolchunks;
  sctp_stats->out_order_chunks.low = stat.sctps_outorderchunks;
  sctp_stats->out_unorder_chunks.low = stat.sctps_outunorderchunks;
  sctp_stats->in_ctrl_chunks.low = stat.sctps_incontrolchunks;
  sctp_stats->in_order_chunks.low = stat.sctps_inorderchunks;
  sctp_stats->in_unorder_chunks.low = stat.sctps_inunorderchunks;
  sctp_stats->frag_usr_msgs.low = stat.sctps_fragusrmsgs;
  sctp_stats->reasm_usr_msgs.low = stat.sctps_reasmusrmsgs;
  sctp_stats->out_sctp_packs.low = stat.sctps_outpackets;
  sctp_stats->in_sctp_packs.low = stat.sctps_inpackets;
  sctp_stats->discontinuity_time = 0;
  return 0;
}

void
netsnmp_access_sctp_params_arch_init()
{
}

int
netsnmp_access_sctp_params_arch_load(netsnmp_sctp_params * sctp_params)
{
	size_t len = sizeof(uint32_t);

    sctp_params->rto_algorithm = NETSNMP_SCTP_ALGORITHM_VANJ;
    sctp_params->max_assocs =  SCTP_MAX_NUM_OF_ASOC; 
	if (sysctlbyname("net.inet.sctp.rto_max",
					 &sctp_params->rto_max,
					 &len, NULL, 0) < 0) {
	  return(-1);
	}
	if (sysctlbyname("net.inet.sctp.rto_min",
					 &sctp_params->rto_min,
					 &len, NULL, 0) < 0) {
	  return(-1);
	}
	if (sysctlbyname("net.inet.sctp.rto_initial",
					 &sctp_params->rto_initial,
					 &len, NULL, 0) < 0) {
	  return(-1);
	}
	if (sysctlbyname("net.inet.sctp.valid_cookie_life",
					 &sctp_params->val_cookie_life,
					 &len, NULL, 0) < 0) {
	  return(-1);
	}
	if (sysctlbyname("net.inet.sctp.init_rtx_max",
					 &sctp_params->max_init_retr,
					 &len, NULL, 0) < 0) {
	  return(-1);
	}
    return 0;
}