Differential D12157 Diff 32502 sys/net80211/ieee80211_input.h

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sys/net80211/ieee80211_input.h

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}		}

static __inline int		static __inline int
ishtinfooui(const uint8_t *frm)		ishtinfooui(const uint8_t *frm)
{		{
return frm[1] > 3 && le32dec(frm+2) == ((BCM_OUI_HTINFO<<24)\|BCM_OUI);		return frm[1] > 3 && le32dec(frm+2) == ((BCM_OUI_HTINFO<<24)\|BCM_OUI);
}		}

		static __inline int
		ieee80211_check_rxseq_amsdu(const struct ieee80211_rx_stats *rxs)
		{

		avosUnsubmitted Not Done Inline Actions Shouldn't state availability check included here as well? avos: Shouldn't state availability check included here as well?
		return (!! (rxs->c_pktflags & IEEE80211_RX_F_AMSDU));
		}

/*		/*
		* Return 1 if the rxseq check should increment the sequence
		* number. Return 0 if it's part of an AMSDU batch and it isn't
		* the final frame in the decap'ed burst.
		*/
		static __inline int
		ieee80211_check_rxseq_amsdu_more(const struct ieee80211_rx_stats *rxs)
		{
		/* No state? ok */
		if (rxs == NULL)
		return (1);

		/* State but no AMSDU set? ok */
		if ((rxs->c_pktflags & IEEE80211_RX_F_AMSDU) == 0)
		return (1);

		/* State, AMSDU set, then _MORE means "don't inc yet" */
		if (rxs->c_pktflags & IEEE80211_RX_F_AMSDU_MORE) {
		return (0);
		}

		/* Both are set, so return ok */
		return (1);
		}

		/*
* Check the current frame sequence number against the current TID		* Check the current frame sequence number against the current TID
* state and return whether it's in sequence or should be dropped.		* state and return whether it's in sequence or should be dropped.
*		*
* Since out of order packet and duplicate packet eliminations should		* Since out of order packet and duplicate packet eliminations should
* be done by the AMPDU RX code, this routine blindly accepts all		* be done by the AMPDU RX code, this routine blindly accepts all
* frames from a HT station w/ a TID that is currently doing AMPDU-RX.		* frames from a HT station w/ a TID that is currently doing AMPDU-RX.
* HT stations without WME or where the TID is not doing AMPDU-RX		* HT stations without WME or where the TID is not doing AMPDU-RX
* are checked like non-HT stations.		* are checked like non-HT stations.
▲ Show 20 Lines • Show All 90 Lines • ▼ Show 20 Lines	#define FRAGNO(a) ((a) & IEEE80211_SEQ_FRAG_MASK)
* At this point we assume that retransmitted seq/frag numbers below		* At this point we assume that retransmitted seq/frag numbers below
* the current can simply be eliminated.		* the current can simply be eliminated.
*/		*/
if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) &&		if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
SEQ_LEQ(rxseq, ni->ni_rxseqs[tid]))		SEQ_LEQ(rxseq, ni->ni_rxseqs[tid]))
goto fail;		goto fail;

ok:		ok:
		/*
		* Only bump the sequence number if it's the last frame
		* in a batch. That way frames in the rest of the batch
		* get included, and the last frame in the batch kicks
		* it next.
		*/
		if (ieee80211_check_rxseq_amsdu_more(rxs)) {
ni->ni_rxseqs[tid] = rxseq;		ni->ni_rxseqs[tid] = rxseq;
		if (ieee80211_check_rxseq_amsdu(rxs))
		IEEE80211_NODE_STAT(ni, rx_amsdu_more_end);
		} else {
		/* .. still waiting */
		IEEE80211_NODE_STAT(ni, rx_amsdu_more);
		}

return 1;		return 1;

fail:		fail:
/* duplicate, discard */		/* duplicate, discard */
IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, bssid, "duplicate",		IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT, bssid, "duplicate",
"seqno <%u,%u> fragno <%u,%u> tid %u",		"seqno <%u,%u> fragno <%u,%u> tid %u",
SEQNO(rxseq), SEQNO(ni->ni_rxseqs[tid]),		SEQNO(rxseq), SEQNO(ni->ni_rxseqs[tid]),
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