void netdev_txnotify(const uip_ipaddr_t *raddr)
{
/* Find the device driver that serves the subnet of the remote address */
struct uip_driver_s *dev = netdev_findbyaddr(raddr);
/* The above lookup will fail if the packet is being sent out of our
* out subnet to a router. REVISIT: For now, we fall back and try "eth0".
*/
if (dev == NULL)
{
/* If the destination address is not in our subnet, assume eth0 as the
* default device.
*/
dev = netdev_findbyname("eth0");
}
if (dev && dev->d_txavail)
{
/* Notify the device driver that new TX data is available. */
(void)dev->d_txavail(dev);
}
}
void netdev_txnotify(const uip_ipaddr_t *raddr)
{
/* Find the device driver that serves the subnet of the remote address */
struct uip_driver_s *dev = netdev_findbyaddr(raddr);
if (dev && dev->d_txavail)
{
/* Notify the device driver that new TX data is available. */
(void)dev->d_txavail(dev);
}
}
int ieee80211_output(FAR struct ieee80211_s *ic, FAR struct iob_s *iob,
FAR struct sockaddr *dst, uint8_t flags)
{
FAR struct uip_driver_s *dev;
FAR struct ieee80211_frame *wh;
FAR struct m_tag *mtag;
uip_lock_t flags;
int error = 0;
/* Get the driver structure */
dev = netdev_findbyaddr(ic->ic_ifname);
if (!dev)
{
error = -ENODEV;
goto bad;
}
/* Interface has to be up and running */
if ((dev->d_flags & (IFF_UP | IFF_RUNNING)) != (IFF_UP | IFF_RUNNING))
{
error = -ENETDOWN;
goto bad;
}
/* Try to get the DLT from a buffer tag */
if ((mtag = m_tag_find(iob, PACKET_TAG_DLT, NULL)) != NULL)
{
unsigned int dlt = *(unsigned int *)(mtag + 1);
/* Fallback to Ethernet for non-802.11 linktypes */
if (!(dlt == DLT_IEEE802_11 || dlt == DLT_IEEE802_11_RADIO))
{
goto fallback;
}
if (iob->io_pktlen < sizeof(struct ieee80211_frame_min))
{
return -EINVAL;
}
wh = (FAR struct ieee80211_frame *)IOB_DATA(iob);
if ((wh->i_fc[0] & IEEE80211_FC0_VERSION_MASK) != IEEE80211_FC0_VERSION_0)
{
return -EINVAL;
}
if (!(ic->ic_caps & IEEE80211_C_RAWCTL) &&
(wh->i_fc[0] & IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL)
{
return -EINVAL;
}
/* Queue message on interface without adding any further headers, and
* start output if interface not yet active.
*/
flags = uip_lock();
error = ieee80211_ifsend(ic, iob, flags);
if (error)
{
/* buffer is already freed */
uip_unlock(flags);
ndbg("ERROR: %s: failed to queue raw tx frame\n", ic->ic_ifname);
return error;
}
uip_unlock(flags);
return error;
}
fallback:
return ether_output(ic, iob, dst);
bad:
if (iob)
{
iob_free_chain(iob);
}
return error;
}
