diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2007-09-14 11:10:25 -0400 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:49:29 -0700 |
| commit | 6a7664d451e7014b1a6828e50ccb3308d0b84816 (patch) | |
| tree | 01c319d33d8c5b61d1946e6c76e27ec9dd44329b /net/mac80211 | |
| parent | 7ac1bd6aecc92cfe6ec11891819dd4c26f2f7879 (diff) | |
| download | linux-6a7664d451e7014b1a6828e50ccb3308d0b84816.tar.gz linux-6a7664d451e7014b1a6828e50ccb3308d0b84816.tar.bz2 linux-6a7664d451e7014b1a6828e50ccb3308d0b84816.zip | |
[MAC80211]: remove HW_KEY_IDX_INVALID
This patch makes the mac80211/driver interface rely only on the
IEEE80211_TXCTL_DO_NOT_ENCRYPT flag to signal to the driver whether
a frame should be encrypted or not, since mac80211 internally no
longer relies on HW_KEY_IDX_INVALID either this removes it, changes
the key index to be a u8 in all places and makes the full range of
the value available to drivers.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/key.c | 4 | ||||
| -rw-r--r-- | net/mac80211/tx.c | 16 |
2 files changed, 12 insertions, 8 deletions
diff --git a/net/mac80211/key.c b/net/mac80211/key.c index b10e33deb63e..dd6fc4aa3ff5 100644 --- a/net/mac80211/key.c +++ b/net/mac80211/key.c @@ -73,8 +73,6 @@ static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key) key->sdata->dev->dev_addr, addr, &key->conf); - WARN_ON(!ret && (key->conf.hw_key_idx == HW_KEY_IDX_INVALID)); - if (!ret) key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE; @@ -109,7 +107,6 @@ static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key) key->conf.keyidx, MAC_ARG(addr), ret); key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE; - key->conf.hw_key_idx = HW_KEY_IDX_INVALID; } struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, @@ -132,7 +129,6 @@ struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata, * Default to software encryption; we'll later upload the * key to the hardware if possible. */ - key->conf.hw_key_idx = HW_KEY_IDX_INVALID; key->conf.flags = 0; key->flags = 0; diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index e2ae1e1fcc7b..3d57e6d80f6d 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -430,8 +430,6 @@ ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) { struct ieee80211_key *key; - tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID; - if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) tx->key = NULL; else if (tx->sta && (key = rcu_dereference(tx->sta->key))) @@ -442,8 +440,10 @@ ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) { I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); return TXRX_DROP; - } else + } else { tx->key = NULL; + tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; + } if (tx->key) { tx->key->tx_rx_count++; @@ -724,6 +724,15 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) } } + /* + * Tell hardware to not encrypt when we had sw crypto. + * Because we use the same flag to internally indicate that + * no (software) encryption should be done, we have to set it + * after all crypto handlers. + */ + if (tx->key && !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) + tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; + return TXRX_CONTINUE; } @@ -833,7 +842,6 @@ __ieee80211_parse_tx_radiotap( */ control->retry_limit = 1; /* no retry */ - control->key_idx = HW_KEY_IDX_INVALID; control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS | IEEE80211_TXCTL_USE_CTS_PROTECT); control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT | |