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Spirit + 6LoWPAN: In STAR configuration, Spirit must use a configured well known hub address. 6LoWPAN cannot assume that the PAN coordinator is the STAR hub; it must ask the radio to provide it with the address of the star hub

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This commit is contained in:
Gregory Nutt
2017-08-05 09:13:29 -06:00
parent c2fbef2062
commit a29a168086
9 changed files with 161 additions and 96 deletions
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net/sixlowpan/sixlowpan_utils.c
+12 -87
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@@ -166,82 +166,6 @@ static void sixlowpan_eaddrfromip(const net_ipv6addr_t ipaddr, FAR uint8_t *eadd
#endif
#endif /* !CONFIG_NET_STARPOINT */
/****************************************************************************
* Name: sixlowpan_coord_eaddr
*
* Description:
* Get the extended address of the PAN coordinator.
*
* Input parameters:
* radio - Reference to a radio network driver state instance.
* eaddr - The location in which to return the extended address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#if defined(CONFIG_NET_STARPOINT) && defined(CONFIG_NET_6LOWPAN_EXTENDEDADDR)
static int sixlowpan_coord_eaddr(FAR struct sixlowpan_driver_s *radio,
FAR struct netdev_varaddr_s *eaddr)
{
FAR struct net_driver_s *dev = &radio->r_dev;
struct ieee802154_netmac_s arg;
int ret;
memcpy(arg.ifr_name, radio->r_dev.d_ifname, IFNAMSIZ);
arg.u.getreq.attr = IEEE802154_ATTR_MAC_COORD_EADDR ;
ret = dev->d_ioctl(dev, MAC802154IOC_MLME_GET_REQUEST,
(unsigned long)((uintptr_t)&arg));
if (ret < 0)
{
nerr("ERROR: MAC802154IOC_MLME_GET_REQUEST failed: %d\n", ret);
return ret;
}
IEEE802154_EADDRCOPY(eaddr->u8, arg.u.getreq.attrval.mac.eaddr);
return OK;
}
#endif
/****************************************************************************
* Name: sixlowpan_coord_saddr
*
* Description:
* Get the short address of the PAN coordinator.
*
* Input parameters:
* radio - Reference to a radio network driver state instance.
* saddr - The location in which to return the short address.
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
#if defined(CONFIG_NET_STARPOINT) && !defined(CONFIG_NET_6LOWPAN_EXTENDEDADDR)
static int sixlowpan_coord_saddr(FAR struct sixlowpan_driver_s *radio,
FAR struct netdev_varaddr_s *saddr)
{
FAR struct net_driver_s *dev = &radio->r_dev;
struct ieee802154_netmac_s arg;
int ret;
memcpy(arg.ifr_name, radio->r_dev.d_ifname, IFNAMSIZ);
arg.u.getreq.attr = IEEE802154_ATTR_MAC_COORD_SADDR ;
ret = dev->d_ioctl(dev, MAC802154IOC_MLME_GET_REQUEST,
(unsigned long)((uintptr_t)&arg));
if (ret < 0)
{
nerr("ERROR: MAC802154IOC_MLME_GET_REQUEST failed: %d\n", ret);
return ret;
}
IEEE802154_SADDRCOPY(saddr->nv_addr, arg.u.getreq.attrval.mac.saddr);
return OK;
}
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
@@ -272,22 +196,23 @@ int sixlowpan_destaddrfromip(FAR struct sixlowpan_driver_s *radio,
FAR struct netdev_varaddr_s *destaddr)
{
#ifdef CONFIG_NET_STARPOINT
struct sixlowpan_properties_s properties;
int ret;
/* If this node is a "point" in a star topology, then the destination
* MAC address is the address of the hub/PAN coordinator.
/* Only the radio driver knows the correct address of the hub. For IEEE
* 802.15.4 this will be the address of the PAN coordinator. For other
* radios, this may be some configured, "well-known" address.
*/
#ifdef CONFIG_NET_6LOWPAN_EXTENDEDADDR
ret = sixlowpan_coord_eaddr(radio, &destaddr->nv_addr);
destaddr->nv_addrlen = NET_6LOWPAN_EADDRSIZE;
#else
memset(destaddr, 0, sizeof(struct netdev_varaddr_s));
ret = sixlowpan_coord_saddr(radio, &destaddr->nv_addr);
destaddr->nv_addrlen = NET_6LOWPAN_SADDRSIZE;
#endif
DEBUGASSERT(radio->r_properties != NULL);
ret = radio->r_properties(radio, &properties);
if (ret < 0)
{
return ret;
}
return ret;
memcpy(destaddr, &properaties.sp_hubnode, sizeof(truct netdev_varaddr_s));
return OK;
#else /* CONFIG_NET_STARPOINT */