/*
* 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;
}
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;
}
/*
* 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;
}
/*
* 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;
}
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;
}
/*
* 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;
}
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
);
}
}