/* BEGIN_ICS_COPYRIGHT5 ****************************************

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** END_ICS_COPYRIGHT5   ****************************************/

/* [ICS VERSION STRING: unknown] */

#include <errno.h>
#include <sys/time.h>

#define OPAMGT_PRIVATE 1
#include "ib_utils_openib.h"
#include "omgt_oob_net.h"
#include "omgt_oob_protocol.h"
#include "opamgt_dump_mad.h"

OMGT_STATUS_T omgt_oob_connect(struct omgt_port **port, struct omgt_oob_input *oob_input, struct omgt_params *session_params)
{
	struct omgt_port *prt = calloc(1, sizeof(struct omgt_port));
	struct net_connection *conn = NULL;
	FSTATUS status = FSUCCESS;

	if (prt == NULL) {
		return OMGT_STATUS_INSUFFICIENT_MEMORY;
	}

	/* Copy session_params into port struct */
	if (session_params) {
		prt->dbg_file = session_params->debug_file;
		prt->error_file = session_params->error_file;
	} else {
		prt->dbg_file = NULL;
		prt->error_file = NULL;
	}

	prt->ms_timeout = OMGT_DEF_TIMEOUT_MS;
	prt->retry_count = OMGT_DEF_RETRY_CNT;

	/* copy login info into port struct */
	prt->oob_input = *oob_input;

	prt->is_oob_enabled = TRUE;
	/* Establish a connection to the host */
	OMGT_DBGPRINT(prt, "establish a connection to host\n");
	if ((status = omgt_oob_net_connect(prt, &conn)) != FSUCCESS) {
		OMGT_OUTPUT_ERROR(prt, "failed to establish a connection to the host: %u\n", status);
		if (prt->is_ssl_enabled && prt->is_ssl_initialized) {
			if (prt->x509_store) {
				X509_STORE_free(prt->x509_store);
				prt->x509_store = NULL;
				prt->is_x509_store_initialized = 0;
			}
			if (prt->dh_params) {
				DH_free(prt->dh_params);
				prt->dh_params = NULL;
				prt->is_dh_params_initialized = 0;
			}
			if (prt->ssl_context) {
				SSL_CTX_free(prt->ssl_context);
				prt->ssl_context = NULL;
			}

			ERR_free_strings();
			prt->is_ssl_initialized = 0;
		}
		free(prt);
		return OMGT_STATUS_UNAVAILABLE;
	}
	prt->conn = conn;
	prt->is_oob_notice_setup = FALSE;
	*port = prt;
	return OMGT_STATUS_SUCCESS;
}

FSTATUS omgt_oob_disconnect(struct omgt_port *port, struct net_connection *conn)
{
	FSTATUS status = FSUCCESS;

	if (conn) {
		if (port->is_ssl_enabled) {
			if (conn->ssl_session) {
				(void)SSL_shutdown(conn->ssl_session);
				SSL_free(conn->ssl_session);
				conn->ssl_session = NULL;
			}
		}
		if ((status = omgt_oob_net_disconnect(port, conn)) != FSUCCESS) {
			OMGT_OUTPUT_ERROR(port, "failed to disconnect from socket: %u\n", status);
		}
	}
	return status;
}

FSTATUS omgt_oob_send_packet(struct omgt_port *port, uint8_t *data, size_t len)
{
	OOB_PACKET packet;

	memset(&packet, 0, sizeof(OOB_PACKET));
	packet.MadData = *((MAD_RMPP *)data);
	packet.Header.HeaderVersion = STL_BASE_VERSION;

	/* Update length of payload in header */
	packet.Header.Length = len;
	BSWAP_OOB_HEADER(&(packet.Header));

	len += sizeof(OOB_HEADER) + sizeof(RMPP_HEADER);

	/* Do nothing if no conn */
	if (!port || !port->conn)
		return FINVALID_PARAMETER;

	/* Send the header and payload */
	return omgt_oob_net_send(port, (uint8_t *)&packet, len);
}

FSTATUS omgt_oob_receive_response(struct omgt_port *port, uint8_t **data, uint32_t *len)
{
	OOB_PACKET *packet = NULL;
	FSTATUS e;

	boolean data_null;
	boolean response_acquired;
	struct timeval start, current;
	uint64_t delta_ms, total_timeout;

	/* Do nothing if no conn */
	if (!port || !port->conn)
		return FINVALID_PARAMETER;

	/* Get response from server */
	response_acquired = FALSE;
	while (response_acquired != TRUE) {
		e = FSUCCESS;
		data_null = TRUE;
		(void)gettimeofday(&start, NULL);
		(void)gettimeofday(&current, NULL);
		delta_ms = 0;
		total_timeout = port->ms_timeout * (port->retry_count + 1);
		while (delta_ms < total_timeout && data_null) {
			omgt_oob_net_process(port, port->conn, 100, 1);
			omgt_oob_net_get_next_message(port->conn, (uint8_t **)&packet, (int *)len);
			if (packet != NULL) {
				data_null = FALSE;
			} else {
				if (port->conn->err) {
					return FERROR;
				}
				(void)gettimeofday(&current, NULL);
				/* Get Delta in ms */
				delta_ms = ((current.tv_sec - start.tv_sec) * 1000) + ((current.tv_usec - start.tv_usec) / 1000);
			}
		}
		if (data_null == TRUE) {
			e = FTIMEOUT;
			response_acquired = TRUE;
		} else {
			*len = 0;
			BSWAP_OOB_HEADER(&(packet->Header));
			*len = packet->Header.Length;

			if (port->dbg_file) {
				OMGT_DBGPRINT(port, "Received MAD: socket %d, length=%u\n", port->conn->sock, *len);
				omgt_dump_mad(port->dbg_file, (uint8_t *)&(packet->MadData), *len, "rcv mad\n");
			}

			// Allocate and copy to new buffer
			*data = calloc(1, *len);
			if (*data == NULL) {
				OMGT_OUTPUT_ERROR(port, "can't alloc return buffer length %u\n", *len);
				return FINSUFFICIENT_MEMORY;
			}
			memcpy(*data, (uint8_t *)&(packet->MadData), *len);

			response_acquired = TRUE;
		}
	}
	if (packet != NULL) {
		free(packet);
	}
	return e;
}