-/* Filter out unrelated packets, call ieee80211_rx[_mgt] */
-int ieee80211_rx_any(struct ieee80211_device *ieee,
- struct sk_buff *skb, struct ieee80211_rx_stats *stats)
-{
- struct ieee80211_hdr_4addr *hdr;
- int is_packet_for_us;
- u16 fc;
-
- if (ieee->iw_mode == IW_MODE_MONITOR)
- return ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL;
-
- hdr = (struct ieee80211_hdr_4addr *)skb->data;
- fc = le16_to_cpu(hdr->frame_ctl);
-
- if ((fc & IEEE80211_FCTL_VERS) != 0)
- return -EINVAL;
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_MGMT:
- ieee80211_rx_mgt(ieee, hdr, stats);
- return 0;
- case IEEE80211_FTYPE_DATA:
- break;
- case IEEE80211_FTYPE_CTL:
- return 0;
- default:
- return -EINVAL;
- }
-
- is_packet_for_us = 0;
- switch (ieee->iw_mode) {
- case IW_MODE_ADHOC:
- /* our BSS and not from/to DS */
- if (memcmp(hdr->addr3, ieee->bssid, ETH_ALEN) == 0)
- if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == 0) {
- /* promisc: get all */
- if (ieee->dev->flags & IFF_PROMISC)
- is_packet_for_us = 1;
- /* to us */
- else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
- is_packet_for_us = 1;
- /* mcast */
- else if (is_multicast_ether_addr(hdr->addr1))
- is_packet_for_us = 1;
- }
- break;
- case IW_MODE_INFRA:
- /* our BSS (== from our AP) and from DS */
- if (memcmp(hdr->addr2, ieee->bssid, ETH_ALEN) == 0)
- if ((fc & (IEEE80211_FCTL_TODS+IEEE80211_FCTL_FROMDS)) == IEEE80211_FCTL_FROMDS) {
- /* promisc: get all */
- if (ieee->dev->flags & IFF_PROMISC)
- is_packet_for_us = 1;
- /* to us */
- else if (memcmp(hdr->addr1, ieee->dev->dev_addr, ETH_ALEN) == 0)
- is_packet_for_us = 1;
- /* mcast */
- else if (is_multicast_ether_addr(hdr->addr1)) {
- /* not our own packet bcasted from AP */
- if (memcmp(hdr->addr3, ieee->dev->dev_addr, ETH_ALEN))
- is_packet_for_us = 1;
- }
- }
- break;
- default:
- /* ? */
- break;
- }
-
- if (is_packet_for_us)
- return (ieee80211_rx(ieee, skb, stats) ? 0 : -EINVAL);
- return 0;
-}
-