diff options
| author | Max Stepanov <Max.Stepanov@intel.com> | 2013-03-24 12:23:27 (GMT) |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-11-25 19:50:52 (GMT) |
| commit | 2475b1cc0d5283a33144b79f3eba6d401d873962 (patch) | |
| tree | 5933a46b04abf495b18877ce710f84a4acda2841 /net/mac80211/tx.c | |
| parent | 6bc54fbcee6836f08355fcca76549c22ad2c2940 (diff) | |
| download | linux-2475b1cc0d5283a33144b79f3eba6d401d873962.tar.xz | |
mac80211: add generic cipher scheme support
This adds generic cipher scheme support to mac80211, such schemes
are fully under control by the driver. On hw registration drivers
may specify additional HW ciphers with a scheme how these ciphers
have to be handled by mac80211 TX/RR. A cipher scheme specifies a
cipher suite value, a size of the security header to be added to
or stripped from frames and how the PN is to be verified on RX.
Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/tx.c')
| -rw-r--r-- | net/mac80211/tx.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 5ad2e8b..e541856 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -557,7 +557,8 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) if (unlikely(info->flags & IEEE80211_TX_INTFL_DONT_ENCRYPT)) tx->key = NULL; - else if (tx->sta && (key = rcu_dereference(tx->sta->ptk))) + else if (tx->sta && + (key = rcu_dereference(tx->sta->ptk[tx->sta->ptk_idx]))) tx->key = key; else if (ieee80211_is_mgmt(hdr->frame_control) && is_multicast_ether_addr(hdr->addr1) && @@ -840,15 +841,16 @@ static int ieee80211_fragment(struct ieee80211_tx_data *tx, rem -= fraglen; tmp = dev_alloc_skb(local->tx_headroom + frag_threshold + - IEEE80211_ENCRYPT_HEADROOM + + tx->sdata->encrypt_headroom + IEEE80211_ENCRYPT_TAILROOM); if (!tmp) return -ENOMEM; __skb_queue_tail(&tx->skbs, tmp); - skb_reserve(tmp, local->tx_headroom + - IEEE80211_ENCRYPT_HEADROOM); + skb_reserve(tmp, + local->tx_headroom + tx->sdata->encrypt_headroom); + /* copy control information */ memcpy(tmp->cb, skb->cb, sizeof(tmp->cb)); @@ -1485,7 +1487,7 @@ void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, headroom = local->tx_headroom; if (may_encrypt) - headroom += IEEE80211_ENCRYPT_HEADROOM; + headroom += sdata->encrypt_headroom; headroom -= skb_headroom(skb); headroom = max_t(int, 0, headroom); @@ -2108,7 +2110,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, */ if (head_need > 0 || skb_cloned(skb)) { - head_need += IEEE80211_ENCRYPT_HEADROOM; + head_need += sdata->encrypt_headroom; head_need += local->tx_headroom; head_need = max_t(int, 0, head_need); if (ieee80211_skb_resize(sdata, skb, head_need, true)) { |