Differential D2655 Diff 5892 sys/dev/ath/if_ath_keycache.c

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sys/dev/ath/if_ath_keycache.c

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	* that the MIC key for a TKIP key at slot i is assumed by the			* that the MIC key for a TKIP key at slot i is assumed by the
	* hardware to be at slot i+64. This limits TKIP keys to the first			* hardware to be at slot i+64. This limits TKIP keys to the first
	* 64 entries.			* 64 entries.
	*/			*/
	int			int
	ath_key_alloc(struct ieee80211vap vap, struct ieee80211_key k,			ath_key_alloc(struct ieee80211vap vap, struct ieee80211_key k,
	ieee80211_keyix keyix, ieee80211_keyix rxkeyix)			ieee80211_keyix keyix, ieee80211_keyix rxkeyix)
	{			{
	struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;			struct ath_softc *sc = vap->iv_ic->ic_softc;

	/*			/*
	* Group key allocation must be handled specially for			* Group key allocation must be handled specially for
	* parts that do not support multicast key cache search			* parts that do not support multicast key cache search
	* functionality. For those parts the key id must match			* functionality. For those parts the key id must match
	* the h/w key index so lookups find the right key. On			* the h/w key index so lookups find the right key. On
	* parts w/ the key search facility we install the sender's			* parts w/ the key search facility we install the sender's
	* mac address (with the high bit set) and let the hardware			* mac address (with the high bit set) and let the hardware
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	}			}

	/*			/*
	* Delete an entry in the key cache allocated by ath_key_alloc.			* Delete an entry in the key cache allocated by ath_key_alloc.
	*/			*/
	int			int
	ath_key_delete(struct ieee80211vap vap, const struct ieee80211_key k)			ath_key_delete(struct ieee80211vap vap, const struct ieee80211_key k)
	{			{
	struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;			struct ath_softc *sc = vap->iv_ic->ic_softc;
	struct ath_hal *ah = sc->sc_ah;			struct ath_hal *ah = sc->sc_ah;
	const struct ieee80211_cipher *cip = k->wk_cipher;			const struct ieee80211_cipher *cip = k->wk_cipher;
	u_int keyix = k->wk_keyix;			u_int keyix = k->wk_keyix;

	DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s: delete key %u\n", __func__, keyix);			DPRINTF(sc, ATH_DEBUG_KEYCACHE, "%s: delete key %u\n", __func__, keyix);

	ATH_LOCK(sc);			ATH_LOCK(sc);
	ath_power_set_power_state(sc, HAL_PM_AWAKE);			ath_power_set_power_state(sc, HAL_PM_AWAKE);
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	/*			/*
	* Set the key cache contents for the specified key. Key cache			* Set the key cache contents for the specified key. Key cache
	* slot(s) must already have been allocated by ath_key_alloc.			* slot(s) must already have been allocated by ath_key_alloc.
	*/			*/
	int			int
	ath_key_set(struct ieee80211vap vap, const struct ieee80211_key k,			ath_key_set(struct ieee80211vap vap, const struct ieee80211_key k,
	const u_int8_t mac[IEEE80211_ADDR_LEN])			const u_int8_t mac[IEEE80211_ADDR_LEN])
	{			{
	struct ath_softc *sc = vap->iv_ic->ic_ifp->if_softc;			struct ath_softc *sc = vap->iv_ic->ic_softc;

	return ath_keyset(sc, vap, k, vap->iv_bss);			return ath_keyset(sc, vap, k, vap->iv_bss);
	}			}