/*
 * Clear the specified key cache entry and any associated MIC entry.
 */
HAL_BOOL
ar5212ResetKeyCacheEntry(struct ath_hal *ah, uint16_t entry)
{
	uint32_t keyType;

	if (entry >= AH_PRIVATE(ah)->ah_caps.halKeyCacheSize) {
		HALDEBUG(ah, HAL_DEBUG_ANY, "%s: entry %u out of range\n",
		    __func__, entry);
		return AH_FALSE;
	}
	keyType = OS_REG_READ(ah, AR_KEYTABLE_TYPE(entry));

	/* XXX why not clear key type/valid bit first? */
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
	OS_REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
	if (keyType == AR_KEYTABLE_TYPE_TKIP && IS_MIC_ENABLED(ah)) {
		uint16_t micentry = entry+64;	/* MIC goes at slot+64 */

		HALASSERT(micentry < AH_PRIVATE(ah)->ah_caps.halKeyCacheSize);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
		/* NB: key type and MAC are known to be ok */
	}
	return AH_TRUE;
}
Example #2
0
bool ath_hw_keyreset(struct ath_common *common, u16 entry)
{
	u32 keyType;
	void *ah = common->ah;

	if (entry >= common->keymax) {
		ath_print(common, ATH_DBG_FATAL,
			  "keychache entry %u out of range\n", entry);
		return false;
	}

	keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));

	REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
	REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);

	if (keyType == AR_KEYTABLE_TYPE_TKIP) {
		u16 micentry = entry + 64;

		REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
		REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
		REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
		REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);

	}

	return true;
}
Example #3
0
/*
 * Clear the specified key cache entry and any associated MIC entry.
 */
HAL_BOOL
ar9300_reset_key_cache_entry(struct ath_hal *ah, u_int16_t entry)
{
    u_int32_t key_type;
    struct ath_hal_9300 *ahp = AH9300(ah);

    if (entry >= AH_PRIVATE(ah)->ah_caps.halKeyCacheSize) {
        HALDEBUG(ah, HAL_DEBUG_KEYCACHE,
            "%s: entry %u out of range\n", __func__, entry);
        return AH_FALSE;
    }

    ahp->ah_keytype[entry] = keyType[HAL_CIPHER_CLR];

    key_type = OS_REG_READ(ah, AR_KEYTABLE_TYPE(entry));

    /* XXX why not clear key type/valid bit first? */
    OS_REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
    OS_REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
    OS_REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
    OS_REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
    OS_REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
    OS_REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
    OS_REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
    OS_REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
    if (key_type == AR_KEYTABLE_TYPE_TKIP && IS_MIC_ENABLED(ah)) {
        u_int16_t micentry = entry + 64;  /* MIC goes at slot+64 */

        HALASSERT(micentry < AH_PRIVATE(ah)->ah_caps.halKeyCacheSize);
        OS_REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
        OS_REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
        OS_REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
        OS_REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
        /* NB: key type and MAC are known to be ok */
    }

    if (AH_PRIVATE(ah)->ah_curchan == AH_NULL) {
        return AH_TRUE;
    }

    if (ar9300_get_capability(ah, HAL_CAP_BB_RIFS_HANG, 0, AH_NULL)
        == HAL_OK) {
        if (key_type == AR_KEYTABLE_TYPE_TKIP    ||
            key_type == AR_KEYTABLE_TYPE_40      ||
            key_type == AR_KEYTABLE_TYPE_104     ||
            key_type == AR_KEYTABLE_TYPE_128) {
            /* SW WAR for Bug 31602 */
            if (--ahp->ah_rifs_sec_cnt == 0) {
                HALDEBUG(ah, HAL_DEBUG_KEYCACHE,
                    "%s: Count = %d, enabling RIFS\n",
                    __func__, ahp->ah_rifs_sec_cnt);
                ar9300_set_rifs_delay(ah, AH_TRUE);
            }
        }
    }
    return AH_TRUE;
}
Example #4
0
/*
 * Clear the specified key cache entry and any associated MIC entry.
 */
HAL_BOOL
ar5416ResetKeyCacheEntry(struct ath_hal *ah, u_int16_t entry)
{
	u_int32_t keyType;
	struct ath_hal_5416 *ahp = AH5416(ah);

	if (entry >= AH_PRIVATE(ah)->ah_caps.halKeyCacheSize) {
		HDPRINTF(ah, HAL_DBG_KEYCACHE, "%s: entry %u out of range\n", __func__, entry);
		return AH_FALSE;
	}
	keyType = OS_REG_READ(ah, AR_KEYTABLE_TYPE(entry));

	ENABLE_REG_WRITE_BUFFER

	/* XXX why not clear key type/valid bit first? */
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
	OS_REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
	OS_REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
	if (keyType == AR_KEYTABLE_TYPE_TKIP && IS_MIC_ENABLED(ah)) {
		u_int16_t micentry = entry+64;	/* MIC goes at slot+64 */

		HALASSERT(micentry < AH_PRIVATE(ah)->ah_caps.halKeyCacheSize);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
		/* NB: key type and MAC are known to be ok */
	}

    OS_REG_WRITE_FLUSH(ah);

	DISABLE_REG_WRITE_BUFFER

	if (AH_PRIVATE(ah)->ah_curchan == AH_NULL)
            return AH_TRUE;

	if (ar5416GetCapability(ah, HAL_CAP_BB_RIFS_HANG, 0, AH_NULL)
		== HAL_OK) {
		if (keyType == AR_KEYTABLE_TYPE_TKIP    ||
		    keyType == AR_KEYTABLE_TYPE_40      ||
		    keyType == AR_KEYTABLE_TYPE_104     ||
		    keyType == AR_KEYTABLE_TYPE_128) {
		    /* SW WAR for Bug 31602 */
			if (--ahp->ah_rifs_sec_cnt == 0) {
				HDPRINTF(ah, HAL_DBG_KEYCACHE, "%s: Count = %d, enabling RIFS\n", __func__, ahp->ah_rifs_sec_cnt);
				ar5416SetRifsDelay(ah, AH_TRUE);
			}
		}
	}
	return AH_TRUE;
}
Example #5
0
void
register_keycache(u_int nslots,
	int def_srev_min, int def_srev_max, int def_phy_min, int def_phy_max)
{
#define	SET(r, a) do { \
	r->addr = a; r->type = DUMP_KEYCACHE; r++; \
} while(0)
	struct dumpreg *keyregs, *r;
	int i;

	keyregs = (struct dumpreg *) calloc(nslots, 8*sizeof(struct dumpreg));
	if (keyregs == NULL)
		errx(-1, "no space to %d keycache slots\n", nslots);
	r = keyregs;
	for (i = 0; i < nslots; i++) {
		SET(r, AR_KEYTABLE_KEY0(i));
		SET(r, AR_KEYTABLE_KEY1(i));
		SET(r, AR_KEYTABLE_KEY2(i));
		SET(r, AR_KEYTABLE_KEY3(i));
		SET(r, AR_KEYTABLE_KEY4(i));
		SET(r, AR_KEYTABLE_TYPE(i));
		SET(r, AR_KEYTABLE_MAC0(i));
		SET(r, AR_KEYTABLE_MAC1(i));
	}
	register_regs(keyregs, 8*nslots,
	    def_srev_min, def_srev_max, def_phy_min, def_phy_max);
#undef SET
}
bool ath_hw_keyreset(struct ath_common *common, u16 entry)
{
	u32 keyType;
	void *ah = common->ah;

	if (entry >= common->keymax) {
		ath_err(common, "keycache entry %u out of range\n", entry);
		return false;
	}

	keyType = REG_READ(ah, AR_KEYTABLE_TYPE(entry));

	ENABLE_REGWRITE_BUFFER(ah);

	REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), AR_KEYTABLE_TYPE_CLR);
	REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
	REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);

	if (keyType == AR_KEYTABLE_TYPE_TKIP) {
		u16 micentry = entry + 64;

		REG_WRITE(ah, AR_KEYTABLE_KEY0(micentry), 0);
		REG_WRITE(ah, AR_KEYTABLE_KEY1(micentry), 0);
		REG_WRITE(ah, AR_KEYTABLE_KEY2(micentry), 0);
		REG_WRITE(ah, AR_KEYTABLE_KEY3(micentry), 0);
		if (common->crypt_caps & ATH_CRYPT_CAP_MIC_COMBINED) {
			REG_WRITE(ah, AR_KEYTABLE_KEY4(micentry), 0);
			REG_WRITE(ah, AR_KEYTABLE_TYPE(micentry),
				  AR_KEYTABLE_TYPE_CLR);
		}

	}

	REGWRITE_BUFFER_FLUSH(ah);

	return true;
}
Example #7
0
/*
 * Clear the specified key cache entry.
 */
HAL_BOOL
ar5210ResetKeyCacheEntry(struct ath_hal *ah, uint16_t entry)
{
	if (entry < AR_KEYTABLE_SIZE) {
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY0(entry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY1(entry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY2(entry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY3(entry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_KEY4(entry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_TYPE(entry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_MAC0(entry), 0);
		OS_REG_WRITE(ah, AR_KEYTABLE_MAC1(entry), 0);
		return AH_TRUE;
	}
	return AH_FALSE;
}
Example #8
0
static void
ath_hal_dumpkeycache(FILE *fd, int nkeys)
{
	static const char *keytypenames[] = {
		"WEP-40", 	/* AR_KEYTABLE_TYPE_40 */
		"WEP-104",	/* AR_KEYTABLE_TYPE_104 */
		"#2",
		"WEP-128",	/* AR_KEYTABLE_TYPE_128 */
		"TKIP",		/* AR_KEYTABLE_TYPE_TKIP */
		"AES-OCB",	/* AR_KEYTABLE_TYPE_AES */
		"AES-CCM",	/* AR_KEYTABLE_TYPE_CCM */
		"CLR",		/* AR_KEYTABLE_TYPE_CLR */
	};
	int micEnabled = SREV(state.revs.ah_macVersion, state.revs.ah_macRev) < SREV(4,8) ? 0 :
	       OS_REG_READ(ah, AR_STA_ID1) & AR_STA_ID1_CRPT_MIC_ENABLE;
	u_int8_t mac[IEEE80211_ADDR_LEN];
	u_int8_t ismic[128/NBBY];
	int entry;
	int first = 1;

	memset(ismic, 0, sizeof(ismic));
	for (entry = 0; entry < nkeys; entry++) {
		u_int32_t macLo, macHi, type;
		u_int32_t key0, key1, key2, key3, key4;

		macHi = OS_REG_READ(ah, AR_KEYTABLE_MAC1(entry));
		if ((macHi & AR_KEYTABLE_VALID) == 0 && isclr(ismic, entry))
			continue;
		macLo = OS_REG_READ(ah, AR_KEYTABLE_MAC0(entry));
		macHi <<= 1;
		if (macLo & (1<<31))
			macHi |= 1;
		macLo <<= 1;
		mac[4] = macHi & 0xff;
		mac[5] = macHi >> 8;
		mac[0] = macLo & 0xff;
		mac[1] = macLo >> 8;
		mac[2] = macLo >> 16;
		mac[3] = macLo >> 24;
		type = OS_REG_READ(ah, AR_KEYTABLE_TYPE(entry));
		if ((type & 7) == AR_KEYTABLE_TYPE_TKIP && micEnabled)
			setbit(ismic, entry+64);
		key0 = OS_REG_READ(ah, AR_KEYTABLE_KEY0(entry));
		key1 = OS_REG_READ(ah, AR_KEYTABLE_KEY1(entry));
		key2 = OS_REG_READ(ah, AR_KEYTABLE_KEY2(entry));
		key3 = OS_REG_READ(ah, AR_KEYTABLE_KEY3(entry));
		key4 = OS_REG_READ(ah, AR_KEYTABLE_KEY4(entry));
		if (first) {
			fprintf(fd, "\n");
			first = 0;
		}
		fprintf(fd, "KEY[%03u] MAC %s %-7s %02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x\n"
			, entry
			, ether_sprintf(mac)
			, isset(ismic, entry) ? "MIC" : keytypenames[type & 7]
			, (key0 >>  0) & 0xff
			, (key0 >>  8) & 0xff
			, (key0 >> 16) & 0xff
			, (key0 >> 24) & 0xff
			, (key1 >>  0) & 0xff
			, (key1 >>  8) & 0xff
			, (key2 >>  0) & 0xff
			, (key2 >>  8) & 0xff
			, (key2 >> 16) & 0xff
			, (key2 >> 24) & 0xff
			, (key3 >>  0) & 0xff
			, (key3 >>  8) & 0xff
			, (key4 >>  0) & 0xff
			, (key4 >>  8) & 0xff
			, (key4 >> 16) & 0xff
			, (key4 >> 24) & 0xff
		);
	}
}