// Send Actions for DeviceState state machine

#include <assert.h>

#include "pEp_internal.h"

#include "keymanagement.h"

#include "message.h"

#include "sync_fsm.h"

#include "baseprotocol.h"

#include "map_asn1.h"

#include "../asn.1/DeviceGroup-Protocol.h"

#include "sync_impl.h"

#include "../asn.1/Beacon.h"

#include "../asn.1/HandshakeRequest.h"

#include "../asn.1/GroupKeys.h"

// sendBeacon() - send Beacon message

//

//  params:

//      session (in)        session handle

//      state (in)          state the state machine is in

//      partner (in)        (must be NULL)

//

//  returns:

//      PEP_STATUS_OK or any other value on error

PEP_STATUS sendBeacon(

        PEP_SESSION session,

        DeviceState_state state,

        Identity partner,

        void *extra

    )

{

    assert(session && state);

    if (!(session && state))

        return PEP_ILLEGAL_VALUE;

    PEP_STATUS status = PEP_STATUS_OK;

    DeviceGroup_Protocol_t *msg = new_DeviceGroup_Protocol_msg(DeviceGroup_Protocol__payload_PR_beacon);

    if (!msg)

        goto enomem;

    status = multicast_self_msg(session, state, msg);

    if (status != PEP_STATUS_OK)

        goto error;

    return PEP_STATUS_OK;

enomem:

    status = PEP_OUT_OF_MEMORY;

error:

    free_DeviceGroup_Protocol_msg(msg);

    return status;

}

// sendHandshakeRequest() - send HandshakeRequest message

//

//  params:

//      session (in)        session handle

//      state (in)          state the state machine is in

//      partner (in)        partner to communicate with

//

//  returns:

//      PEP_STATUS_OK or any other value on error

PEP_STATUS sendHandshakeRequest(

        PEP_SESSION session,

        DeviceState_state state,

        Identity partner,

        void *extra

    )

{

    assert(session && state);

    if (!(session && state))

        return PEP_ILLEGAL_VALUE;

    PEP_STATUS status = PEP_STATUS_OK;

    DeviceGroup_Protocol_t *msg = new_DeviceGroup_Protocol_msg(DeviceGroup_Protocol__payload_PR_handshakeRequest);

    if (!msg)

        goto enomem;

    status = unicast_msg(session, partner, state, msg);

    if (status != PEP_STATUS_OK)

        goto error;

    return PEP_STATUS_OK;

enomem:

    status = PEP_OUT_OF_MEMORY;

error:

    free_DeviceGroup_Protocol_msg(msg);

    return status;

}

// sendGroupKeys() - send GroupKeys message

//

//  params:

//      session (in)        session handle

//      state (in)          state the state machine is in

//      partner (in)        (must be NULL)

//

//  returns:

//      PEP_STATUS_OK or any other value on error

PEP_STATUS sendGroupKeys(

        PEP_SESSION session,

        DeviceState_state state,

        Identity partner,

        void *extra

    )

{

    assert(session && state);

    if (!(session && state))

        return PEP_ILLEGAL_VALUE;

    PEP_STATUS status = PEP_STATUS_OK;

    identity_list *kl = new_identity_list(NULL);

    DeviceGroup_Protocol_t *msg = new_DeviceGroup_Protocol_msg(DeviceGroup_Protocol__payload_PR_groupKeys);

    if (!msg)

        goto enomem;

    status = own_identities_retrieve(session, &kl);

    if (status != PEP_STATUS_OK)

        goto error;

    if (IdentityList_from_identity_list(kl, &msg->payload.choice.groupKeys.ownIdentities) == NULL)

        goto enomem;

    status = unicast_msg(session, partner, state, msg);

    if (status != PEP_STATUS_OK)

        goto error;

    free_identity_list(kl);

    return PEP_STATUS_OK;

enomem:

    status = PEP_OUT_OF_MEMORY;

error:

    free_DeviceGroup_Protocol_msg(msg);

    free_identity_list(kl);

    return status;

}