/*---------------------------------------------------------------------------*/
static void
handle_beacon_send_timer(struct net_buf *buf, void *p)
{
struct net_buf *mbuf;
frame802154_t params;
uint8_t len;
mbuf = l2_buf_get_reserve(0);
if(!mbuf) {
return;
}
/* init to zeros */
memset(¶ms, 0, sizeof(params));
/* use packetbuf for sending ?? */
packetbuf_clear(mbuf);
/* Build the FCF. */
params.fcf.frame_type = FRAME802154_BEACONFRAME;
/* Insert IEEE 802.15.4 (2006) version bits. */
params.fcf.frame_version = FRAME802154_IEEE802154_2006;
/* assume long for now */
params.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
linkaddr_copy((linkaddr_t *)¶ms.src_addr, &linkaddr_node_addr);
/* Set the source PAN ID to the global variable. */
params.src_pid = panid;
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
params.dest_addr[0] = 0xFF;
params.dest_addr[1] = 0xFF;
params.dest_pid = 0xffff;
params.seq = framer_802154_next_seqno();
/* Calculate beacon length and copy it to packetbuf */
beacon_payload_len = handler_802154_calculate_beacon_payload_length(beacon_payload, BEACON_PAYLOAD_BUFFER_SIZE);
packetbuf_copyfrom(mbuf, beacon_payload, beacon_payload_len);
/* Set payload and payload length */
params.payload = packetbuf_dataptr(mbuf);
params.payload_len = packetbuf_datalen(mbuf);
len = frame802154_hdrlen(¶ms);
if(packetbuf_hdralloc(mbuf, len)) {
frame802154_create(¶ms, packetbuf_hdrptr(mbuf), len);
if(NETSTACK_RADIO.send(mbuf, packetbuf_hdrptr(mbuf),
packetbuf_totlen(mbuf)) != RADIO_TX_OK) {
l2_buf_unref(mbuf);
return;
}
HANDLER_802154_STAT(handler_802154_stats.beacons_sent++);
}
}
/* Construct enhanced ACK packet and return ACK length */
int
tsch_packet_create_eack(uint8_t *buf, int buf_size,
linkaddr_t *dest_addr, uint8_t seqno, int16_t drift, int nack)
{
int ret;
uint8_t curr_len = 0;
frame802154_t p;
struct ieee802154_ies ies;
memset(&p, 0, sizeof(p));
p.fcf.frame_type = FRAME802154_ACKFRAME;
p.fcf.frame_version = FRAME802154_IEEE802154E_2012;
p.fcf.ie_list_present = 1;
/* Compression unset. According to IEEE802.15.4e-2012:
* - if no address is present: elide PAN ID
* - if at least one address is present: include exactly one PAN ID (dest by default) */
p.fcf.panid_compression = 0;
p.dest_pid = IEEE802154_PANID;
p.seq = seqno;
#if TSCH_PACKET_EACK_WITH_DEST_ADDR
if(dest_addr != NULL) {
p.fcf.dest_addr_mode = LINKADDR_SIZE > 2 ? FRAME802154_LONGADDRMODE : FRAME802154_SHORTADDRMODE;;
linkaddr_copy((linkaddr_t *)&p.dest_addr, dest_addr);
}
#endif
#if TSCH_PACKET_EACK_WITH_SRC_ADDR
p.fcf.src_addr_mode = LINKADDR_SIZE > 2 ? FRAME802154_LONGADDRMODE : FRAME802154_SHORTADDRMODE;;
p.src_pid = IEEE802154_PANID;
linkaddr_copy((linkaddr_t *)&p.src_addr, &linkaddr_node_addr);
#endif
#if LLSEC802154_ENABLED
if(tsch_is_pan_secured) {
p.fcf.security_enabled = 1;
p.aux_hdr.security_control.security_level = TSCH_SECURITY_KEY_SEC_LEVEL_ACK;
p.aux_hdr.security_control.key_id_mode = FRAME802154_1_BYTE_KEY_ID_MODE;
p.aux_hdr.security_control.frame_counter_suppression = 1;
p.aux_hdr.security_control.frame_counter_size = 1;
p.aux_hdr.key_index = TSCH_SECURITY_KEY_INDEX_ACK;
}
#endif /* LLSEC802154_ENABLED */
if((curr_len = frame802154_create(&p, buf)) == 0) {
return 0;
}
/* Append IE timesync */
memset(&ies, 0, sizeof(ies));
ies.ie_time_correction = drift;
ies.ie_is_nack = nack;
if((ret = frame80215e_create_ie_header_ack_nack_time_correction(buf+curr_len, buf_size-curr_len, &ies)) == -1) {
return -1;
}
curr_len += ret;
return curr_len;
}
/* called to send a beacon request */
void
handler_802154_send_beacon_request(void)
{
struct net_buf *mbuf;
frame802154_t params;
uint8_t len;
mbuf = l2_buf_get_reserve(0);
if(!mbuf) {
return;
}
/* init to zeros */
memset(¶ms, 0, sizeof(params));
/* use packetbuf for sending ?? */
packetbuf_clear(mbuf);
/* Build the FCF. */
params.fcf.frame_type = FRAME802154_CMDFRAME;
/* Insert IEEE 802.15.4 (2006) version bits. */
params.fcf.frame_version = FRAME802154_IEEE802154_2006;
params.fcf.src_addr_mode = FRAME802154_NOADDR;
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
params.dest_addr[0] = 0xFF;
params.dest_addr[1] = 0xFF;
params.dest_pid = 0xffff;
params.seq = chseqno;
packetbuf_set_datalen(mbuf, 1);
params.payload = packetbuf_dataptr(mbuf);
/* set the type in the payload */
params.payload[0] = FRAME802154_BEACONREQ;
params.payload_len = packetbuf_datalen(mbuf);
len = frame802154_hdrlen(¶ms);
if(packetbuf_hdralloc(mbuf, len)) {
frame802154_create(¶ms, packetbuf_hdrptr(mbuf), len);
if(NETSTACK_RADIO.send(mbuf, packetbuf_hdrptr(mbuf),
packetbuf_totlen(mbuf)) != RADIO_TX_OK) {
l2_buf_unref(mbuf);
return;
}
HANDLER_802154_STAT(handler_802154_stats.beacons_reqs_sent++);
}
}
/*---------------------------------------------------------------------------*/
static int
create_frame(int type, int do_create)
{
frame802154_t params;
int hdr_len;
/* init to zeros */
memset(¶ms, 0, sizeof(params));
if(!initialized) {
initialized = 1;
mac_dsn = random_rand() & 0xff;
}
/* Build the FCF. */
params.fcf.frame_type = packetbuf_attr(PACKETBUF_ATTR_FRAME_TYPE);
params.fcf.frame_pending = packetbuf_attr(PACKETBUF_ATTR_PENDING);
if(packetbuf_holds_broadcast()) {
params.fcf.ack_required = 0;
} else {
params.fcf.ack_required = packetbuf_attr(PACKETBUF_ATTR_MAC_ACK);
}
params.fcf.panid_compression = 0;
/* Insert IEEE 802.15.4 (2006) version bits. */
params.fcf.frame_version = FRAME802154_IEEE802154_2006;
#if LLSEC802154_SECURITY
if(packetbuf_attr(PACKETBUF_ATTR_SECURITY_LEVEL)) {
params.fcf.security_enabled = 1;
}
/* Setting security-related attributes */
params.aux_hdr.security_control.security_level = packetbuf_attr(PACKETBUF_ATTR_SECURITY_LEVEL);
params.aux_hdr.frame_counter.u16[0] = packetbuf_attr(PACKETBUF_ATTR_FRAME_COUNTER_BYTES_0_1);
params.aux_hdr.frame_counter.u16[1] = packetbuf_attr(PACKETBUF_ATTR_FRAME_COUNTER_BYTES_2_3);
#if LLSEC802154_USES_EXPLICIT_KEYS
params.aux_hdr.security_control.key_id_mode = packetbuf_attr(PACKETBUF_ATTR_KEY_ID_MODE);
params.aux_hdr.key_index = packetbuf_attr(PACKETBUF_ATTR_KEY_INDEX);
params.aux_hdr.key_source.u16[0] = packetbuf_attr(PACKETBUF_ATTR_KEY_SOURCE_BYTES_0_1);
#endif /* LLSEC802154_USES_EXPLICIT_KEYS */
#endif /* LLSEC802154_SECURITY */
/* Increment and set the data sequence number. */
if(!do_create) {
/* Only length calculation - no sequence number is needed and
should not be consumed. */
} else if(packetbuf_attr(PACKETBUF_ATTR_MAC_SEQNO)) {
params.seq = packetbuf_attr(PACKETBUF_ATTR_MAC_SEQNO);
} else {
/* Ensure that the sequence number 0 is not used as it would bypass the above check. */
if(mac_dsn == 0) {
mac_dsn++;
}
params.seq = mac_dsn++;
packetbuf_set_attr(PACKETBUF_ATTR_MAC_SEQNO, params.seq);
}
/* Complete the addressing fields. */
/**
\todo For phase 1 the addresses are all long. We'll need a mechanism
in the rime attributes to tell the mac to use long or short for phase 2.
*/
if(LINKADDR_SIZE == 2) {
/* Use short address mode if linkaddr size is short. */
params.fcf.src_addr_mode = FRAME802154_SHORTADDRMODE;
} else {
params.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
}
params.dest_pid = mac_dst_pan_id;
if(packetbuf_holds_broadcast()) {
/* Broadcast requires short address mode. */
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
params.dest_addr[0] = 0xFF;
params.dest_addr[1] = 0xFF;
} else {
linkaddr_copy((linkaddr_t *)¶ms.dest_addr,
packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
/* Use short address mode if linkaddr size is small */
if(LINKADDR_SIZE == 2) {
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
} else {
params.fcf.dest_addr_mode = FRAME802154_LONGADDRMODE;
}
}
/* Set the source PAN ID to the global variable. */
params.src_pid = mac_src_pan_id;
/*
* Set up the source address using only the long address mode for
* phase 1.
*/
linkaddr_copy((linkaddr_t *)¶ms.src_addr,
packetbuf_addr(PACKETBUF_ADDR_SENDER));
params.payload = packetbuf_dataptr();
params.payload_len = packetbuf_datalen();
hdr_len = frame802154_hdrlen(¶ms);
if(!do_create) {
/* Only calculate header length */
return hdr_len;
} else if(packetbuf_hdralloc(hdr_len)) {
frame802154_create(¶ms, packetbuf_hdrptr());
PRINTF("15.4-OUT: %2X", params.fcf.frame_type);
PRINTADDR(params.dest_addr);
PRINTF("%d %u (%u)\n", hdr_len, packetbuf_datalen(), packetbuf_totlen());
return hdr_len;
} else {
PRINTF("15.4-OUT: too large header: %u\n", hdr_len);
return FRAMER_FAILED;
}
}
/*---------------------------------------------------------------------------*/
static int
create(void)
{
frame802154_t params;
int len;
/* init to zeros */
memset(¶ms, 0, sizeof(params));
if(!initialized) {
initialized = 1;
mac_dsn = random_rand() & 0xff;
}
/* Build the FCF. */
params.fcf.frame_type = FRAME802154_DATAFRAME;
params.fcf.security_enabled = 0;
params.fcf.frame_pending = packetbuf_attr(PACKETBUF_ATTR_PENDING);
if(linkaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), &linkaddr_null)) {
params.fcf.ack_required = 0;
} else {
params.fcf.ack_required = packetbuf_attr(PACKETBUF_ATTR_MAC_ACK);
}
params.fcf.panid_compression = 0;
/* Insert IEEE 802.15.4 (2003) version bit. */
params.fcf.frame_version = FRAME802154_IEEE802154_2003;
/* Increment and set the data sequence number. */
if(packetbuf_attr(PACKETBUF_ATTR_MAC_SEQNO)) {
params.seq = packetbuf_attr(PACKETBUF_ATTR_MAC_SEQNO);
} else {
params.seq = mac_dsn++;
packetbuf_set_attr(PACKETBUF_ATTR_MAC_SEQNO, params.seq);
}
/* params.seq = packetbuf_attr(PACKETBUF_ATTR_PACKET_ID); */
/* Complete the addressing fields. */
/**
\todo For phase 1 the addresses are all long. We'll need a mechanism
in the rime attributes to tell the mac to use long or short for phase 2.
*/
if(sizeof(linkaddr_t) == 2) {
/* Use short address mode if linkaddr size is short. */
params.fcf.src_addr_mode = FRAME802154_SHORTADDRMODE;
} else {
params.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
}
params.dest_pid = mac_dst_pan_id;
/*
* If the output address is NULL in the Rime buf, then it is broadcast
* on the 802.15.4 network.
*/
if(linkaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), &linkaddr_null)) {
/* Broadcast requires short address mode. */
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
params.dest_addr[0] = 0xFF;
params.dest_addr[1] = 0xFF;
} else {
linkaddr_copy((linkaddr_t *)¶ms.dest_addr,
packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
/* Use short address mode if linkaddr size is small */
if(sizeof(linkaddr_t) == 2) {
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
} else {
params.fcf.dest_addr_mode = FRAME802154_LONGADDRMODE;
}
}
/* Set the source PAN ID to the global variable. */
params.src_pid = mac_src_pan_id;
/*
* Set up the source address using only the long address mode for
* phase 1.
*/
linkaddr_copy((linkaddr_t *)¶ms.src_addr, &linkaddr_node_addr);
params.payload = packetbuf_dataptr();
params.payload_len = packetbuf_datalen();
len = frame802154_hdrlen(¶ms);
if(packetbuf_hdralloc(len)) {
frame802154_create(¶ms, packetbuf_hdrptr(), len);
PRINTF("15.4-OUT: %2X", params.fcf.frame_type);
PRINTADDR(params.dest_addr);
PRINTF("%d %u (%u)\n", len, packetbuf_datalen(), packetbuf_totlen());
return len;
} else {
PRINTF("15.4-OUT: too large header: %u\n", len);
return FRAMER_FAILED;
}
}
/*---------------------------------------------------------------------------*/
static int
send_packet(void)
{
frame802154_t params;
uint8_t len;
/* init to zeros */
memset(¶ms, 0, sizeof(params));
/* Build the FCF. */
params.fcf.frame_type = FRAME802154_DATAFRAME;
params.fcf.security_enabled = 0;
params.fcf.frame_pending = 0;
params.fcf.ack_required = packetbuf_attr(PACKETBUF_ATTR_RELIABLE);
params.fcf.panid_compression = 0;
/* Insert IEEE 802.15.4 (2003) version bit. */
params.fcf.frame_version = FRAME802154_IEEE802154_2003;
/* Increment and set the data sequence number. */
params.seq = mac_dsn++;
/* Complete the addressing fields. */
/**
\todo For phase 1 the addresses are all long. We'll need a mechanism
in the rime attributes to tell the mac to use long or short for phase 2.
*/
params.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
params.dest_pid = mac_dst_pan_id;
/*
* If the output address is NULL in the Rime buf, then it is broadcast
* on the 802.15.4 network.
*/
if(rimeaddr_cmp(packetbuf_addr(PACKETBUF_ADDR_RECEIVER), &rimeaddr_null)) {
/* Broadcast requires short address mode. */
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
params.dest_addr.u8[0] = 0xFF;
params.dest_addr.u8[1] = 0xFF;
} else {
rimeaddr_copy(¶ms.dest_addr, packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
params.fcf.dest_addr_mode = FRAME802154_LONGADDRMODE;
}
/* Set the source PAN ID to the global variable. */
params.src_pid = mac_src_pan_id;
/*
* Set up the source address using only the long address mode for
* phase 1.
*/
rimeaddr_copy(¶ms.src_addr, &rimeaddr_node_addr);
params.payload = packetbuf_dataptr();
params.payload_len = packetbuf_datalen();
len = frame802154_hdrlen(¶ms);
PRINTF("payload=%s, len=%d, hdrlen=%d\n", params.payload, params.payload_len, len);
if(packetbuf_hdralloc(len)) {
frame802154_create(¶ms, packetbuf_hdrptr(), len);
//PRINTF("6MAC-UT: %2X\n", params.fcf.frame_type);
PRINTADDR(params.dest_addr.u8);
//PRINTF("%u %u (%u)\n", len, packetbuf_datalen(), packetbuf_totlen());
return radio->send(packetbuf_hdrptr(), packetbuf_totlen());
} else {
PRINTF("6MAC-UT: too large header: %u\n", len);
}
return 0;
}
/* Create an EB packet */
int
tsch_packet_create_eb(uint8_t *buf, int buf_size, uint8_t seqno,
uint8_t *hdr_len, uint8_t *tsch_sync_ie_offset)
{
int ret = 0;
uint8_t curr_len = 0;
uint8_t mlme_ie_offset;
frame802154_t p;
struct ieee802154_ies ies;
if(buf_size < TSCH_PACKET_MAX_LEN) {
return 0;
}
/* Create 802.15.4 header */
memset(&p, 0, sizeof(p));
p.fcf.frame_type = FRAME802154_BEACONFRAME;
p.fcf.ie_list_present = 1;
p.fcf.frame_version = FRAME802154_IEEE802154E_2012;
p.fcf.src_addr_mode = LINKADDR_SIZE > 2 ? FRAME802154_LONGADDRMODE : FRAME802154_SHORTADDRMODE;
p.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
p.seq = seqno;
p.fcf.sequence_number_suppression = FRAME802154_SUPPR_SEQNO;
/* It is important not to compress PAN ID, as this would result in not including either
* source nor destination PAN ID, leaving potential joining devices unaware of the PAN ID. */
p.fcf.panid_compression = 0;
p.src_pid = frame802154_get_pan_id();
p.dest_pid = frame802154_get_pan_id();
linkaddr_copy((linkaddr_t *)&p.src_addr, &linkaddr_node_addr);
p.dest_addr[0] = 0xff;
p.dest_addr[1] = 0xff;
#if LLSEC802154_ENABLED
if(tsch_is_pan_secured) {
p.fcf.security_enabled = packetbuf_attr(PACKETBUF_ATTR_SECURITY_LEVEL) > 0;
p.aux_hdr.security_control.security_level = packetbuf_attr(PACKETBUF_ATTR_SECURITY_LEVEL);
p.aux_hdr.security_control.key_id_mode = packetbuf_attr(PACKETBUF_ATTR_KEY_ID_MODE);
p.aux_hdr.security_control.frame_counter_suppression = 1;
p.aux_hdr.security_control.frame_counter_size = 1;
p.aux_hdr.key_index = packetbuf_attr(PACKETBUF_ATTR_KEY_INDEX);
}
#endif /* LLSEC802154_ENABLED */
if((curr_len = frame802154_create(&p, buf)) == 0) {
return 0;
}
/* Prepare Information Elements for inclusion in the EB */
memset(&ies, 0, sizeof(ies));
/* Add TSCH timeslot timing IE. */
#if TSCH_PACKET_EB_WITH_TIMESLOT_TIMING
{
int i;
ies.ie_tsch_timeslot_id = 1;
for(i = 0; i < tsch_ts_elements_count; i++) {
ies.ie_tsch_timeslot[i] = RTIMERTICKS_TO_US(tsch_timing[i]);
}
}
#endif /* TSCH_PACKET_EB_WITH_TIMESLOT_TIMING */
/* Add TSCH hopping sequence IE */
#if TSCH_PACKET_EB_WITH_HOPPING_SEQUENCE
if(tsch_hopping_sequence_length.val <= sizeof(ies.ie_hopping_sequence_list)) {
ies.ie_channel_hopping_sequence_id = 1;
ies.ie_hopping_sequence_len = tsch_hopping_sequence_length.val;
memcpy(ies.ie_hopping_sequence_list, tsch_hopping_sequence, ies.ie_hopping_sequence_len);
}
#endif /* TSCH_PACKET_EB_WITH_HOPPING_SEQUENCE */
/* Add Slotframe and Link IE */
#if TSCH_PACKET_EB_WITH_SLOTFRAME_AND_LINK
{
/* Send slotframe 0 with link at timeslot 0 */
struct tsch_slotframe *sf0 = tsch_schedule_get_slotframe_by_handle(0);
struct tsch_link *link0 = tsch_schedule_get_link_by_timeslot(sf0, 0);
if(sf0 && link0) {
ies.ie_tsch_slotframe_and_link.num_slotframes = 1;
ies.ie_tsch_slotframe_and_link.slotframe_handle = sf0->handle;
ies.ie_tsch_slotframe_and_link.slotframe_size = sf0->size.val;
ies.ie_tsch_slotframe_and_link.num_links = 1;
ies.ie_tsch_slotframe_and_link.links[0].timeslot = link0->timeslot;
ies.ie_tsch_slotframe_and_link.links[0].channel_offset = link0->channel_offset;
ies.ie_tsch_slotframe_and_link.links[0].link_options = link0->link_options;
}
}
#endif /* TSCH_PACKET_EB_WITH_SLOTFRAME_AND_LINK */
/* First add header-IE termination IE to stipulate that next come payload IEs */
if((ret = frame80215e_create_ie_header_list_termination_1(buf + curr_len, buf_size - curr_len, &ies)) == -1) {
return -1;
}
curr_len += ret;
/* We start payload IEs, save offset */
if(hdr_len != NULL) {
*hdr_len = curr_len;
}
/* Save offset of the MLME IE descriptor, we need to know the total length
* before writing it */
mlme_ie_offset = curr_len;
curr_len += 2; /* Space needed for MLME descriptor */
/* Save the offset of the TSCH Synchronization IE, needed to update ASN and join priority before sending */
if(tsch_sync_ie_offset != NULL) {
*tsch_sync_ie_offset = curr_len;
}
if((ret = frame80215e_create_ie_tsch_synchronization(buf + curr_len, buf_size - curr_len, &ies)) == -1) {
return -1;
}
curr_len += ret;
if((ret = frame80215e_create_ie_tsch_timeslot(buf + curr_len, buf_size - curr_len, &ies)) == -1) {
return -1;
}
curr_len += ret;
if((ret = frame80215e_create_ie_tsch_channel_hopping_sequence(buf + curr_len, buf_size - curr_len, &ies)) == -1) {
return -1;
}
curr_len += ret;
if((ret = frame80215e_create_ie_tsch_slotframe_and_link(buf + curr_len, buf_size - curr_len, &ies)) == -1) {
return -1;
}
curr_len += ret;
ies.ie_mlme_len = curr_len - mlme_ie_offset - 2;
if((ret = frame80215e_create_ie_mlme(buf + mlme_ie_offset, buf_size - mlme_ie_offset, &ies)) == -1) {
return -1;
}
/* Payload IE list termination: optional */
/*
if((ret = frame80215e_create_ie_payload_list_termination(buf + curr_len, buf_size - curr_len, &ies)) == -1) {
return -1;
}
curr_len += ret;
*/
return curr_len;
}
/*---------------------------------------------------------------------------*/
static uint8_t
send_packet(struct net_buf *buf, mac_callback_t sent, void *ptr)
{
frame802154_t params;
uint8_t len;
uint8_t ret = 0;
/* init to zeros */
memset(¶ms, 0, sizeof(params));
/* Build the FCF. */
params.fcf.frame_type = FRAME802154_DATAFRAME;
params.fcf.security_enabled = 0;
params.fcf.frame_pending = 0;
params.fcf.ack_required = packetbuf_attr(buf, PACKETBUF_ATTR_RELIABLE);
params.fcf.panid_compression = 0;
/* Insert IEEE 802.15.4 (2003) version bit. */
params.fcf.frame_version = FRAME802154_IEEE802154_2003;
/* Increment and set the data sequence number. */
params.seq = mac_dsn++;
/* Complete the addressing fields. */
/**
\todo For phase 1 the addresses are all long. We'll need a mechanism
in the rime attributes to tell the mac to use long or short for phase 2.
*/
params.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
params.dest_pid = mac_dst_pan_id;
if(packetbuf_holds_broadcast(buf)) {
/* Broadcast requires short address mode. */
params.fcf.dest_addr_mode = FRAME802154_SHORTADDRMODE;
params.dest_addr[0] = 0xFF;
params.dest_addr[1] = 0xFF;
} else {
linkaddr_copy((linkaddr_t *)¶ms.dest_addr,
packetbuf_addr(buf, PACKETBUF_ADDR_RECEIVER));
params.fcf.dest_addr_mode = FRAME802154_LONGADDRMODE;
}
/* Set the source PAN ID to the global variable. */
params.src_pid = mac_src_pan_id;
/*
* Set up the source address using only the long address mode for
* phase 1.
*/
#if NETSTACK_CONF_BRIDGE_MODE
linkaddr_copy((linkaddr_t *)¶ms.src_addr,packetbuf_addr(PACKETBUF_ADDR_SENDER));
#else
linkaddr_copy((linkaddr_t *)¶ms.src_addr, &linkaddr_node_addr);
#endif
params.payload = packetbuf_dataptr(buf);
params.payload_len = packetbuf_datalen(buf);
len = frame802154_hdrlen(¶ms);
if(packetbuf_hdralloc(buf, len)) {
frame802154_create(¶ms, packetbuf_hdrptr(buf), len);
PRINTF("6MAC-UT: type %X dest ", params.fcf.frame_type);
PRINTLLADDR((uip_lladdr_t *)params.dest_addr);
PRINTF(" len %u datalen %u (totlen %u)\n", len, packetbuf_datalen(buf),
packetbuf_totlen(buf));
ret = NETSTACK_RADIO.send(buf, packetbuf_hdrptr(buf), packetbuf_totlen(buf));
if(sent) {
switch(ret) {
case RADIO_TX_OK:
sent(buf, ptr, MAC_TX_OK, 1);
break;
case RADIO_TX_ERR:
sent(buf, ptr, MAC_TX_ERR, 1);
break;
case RADIO_TX_COLLISION:
sent(buf, ptr, MAC_TX_COLLISION, 1);
break;
}
}
} else {
PRINTF("6MAC-UT: too large header: %u\n", len);
}
return ret;
}
/* Function to send beacon */
extern void mac_send_beacon()
{
static uint16_t macBSN = 0x00;
uint8_t payload[10] = {0,0,0,0,0,0,0,0,0,0};
frame802154_t params;
static frame802154_beacon_t beaconData;
uint8_t len;
/* init to zeros */
memset(¶ms, 0, sizeof(params));
memset(&beaconData, 0, sizeof(frame802154_beacon_t));
/* Build the FCF. */
params.fcf.frame_type = FRAME802154_BEACONFRAME;
params.fcf.security_enabled = 0;
params.fcf.frame_pending = 0;
params.fcf.ack_required = 0;
params.fcf.panid_compression = 0;
/* Insert IEEE 802.15.4 (2003) version bit. */
params.fcf.frame_version = FRAME802154_IEEE802154_2003;
/* Increment and set the beacon sequence number. */
params.seq = macBSN++;
/* Complete the addressing fields. */
/**
\todo For phase 1 the addresses are all long. We'll need a mechanism
in the rime attributes to tell the mac to use long or short for phase 2.
*/
params.fcf.src_addr_mode = FRAME802154_LONGADDRMODE;
/* Set the source PAN ID to the PAN ID as per spec. */
params.src_pid = mac_dst_pan_id;
params.fcf.dest_addr_mode = FRAME802154_NOADDR;
params.dest_pid = 0;
// params.dest_addr[0] = 0xFF;
// params.dest_addr[1] = 0xFF;
//rimeaddr_copy((rimeaddr_t *)¶ms.dest_addr,\
packetbuf_addr(PACKETBUF_ADDR_RECEIVER));
/*
* Set up the source address using only the long address mode for
* phase 1.
*/
rimeaddr_copy((rimeaddr_t *)¶ms.src_addr, &rimeaddr_node_addr);
rimeaddr_copy((rimeaddr_t *)¶ms.dest_addr, &rimeaddr_null);
/* Preparing the payload for beacon*/
beaconData.superFrSpec |= 0x000F; /* BO set to 15 */
beaconData.superFrSpec |= 0x00F0; /* SO set to 15 */
beaconData.superFrSpec |= 0x0F00; /* CAP lt:No relevance in beacon less */
beaconData.superFrSpec |= BV(14); /* PAN coordinator */
beaconData.superFrSpec |= BV(15); /* Association permitted */
beaconData.gtsInfo.gtsSpec = 0; /* If 0, direction and list are absent*/
beaconData.pendAddrInfo.pendAddrSpec = 0; /* If 0, no list present*/
packetbuf_clear();
len = frame802154_packBeacon((uint8_t*)packetbuf_dataptr(),&beaconData);
packetbuf_set_datalen(len);
params.payload = packetbuf_dataptr();
len = frame802154_hdrlen(¶ms);
frame802154_create(¶ms, packetbuf_hdrptr(), len);
NETSTACK_RADIO.send(packetbuf_hdrptr(), packetbuf_totlen());
return;
}
