diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2012-07-04 18:10:07 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2012-07-12 12:10:47 +0200 |
| commit | 46e6de159ddebc179cbae60fd7b728f57c39964b (patch) | |
| tree | dc2eacdf8e10b3d4bf38f3df44bd7d59b448a3f0 | |
| parent | 8c358bcd097fa1f63e57fb82525ba52f4a537bfa (diff) | |
| download | linux-46e6de159ddebc179cbae60fd7b728f57c39964b.tar.bz2 | |
mac80211: restructure key selection
The "no key" case in key selection that decides
whether to drop the frame or not is impossible
to understand, restructure the code.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
[cavallar@lri.fr: removed blank line and restructured action frame clause]
Signed-off-by: Nicolas Cavallari <cavallar@lri.fr>
| -rw-r--r-- | net/mac80211/tx.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index c9d2175d15c1..a79fd868566d 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -523,7 +523,7 @@ ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx) static ieee80211_tx_result debug_noinline ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) { - struct ieee80211_key *key = NULL; + struct ieee80211_key *key; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data; @@ -542,16 +542,20 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx) else if (!is_multicast_ether_addr(hdr->addr1) && (key = rcu_dereference(tx->sdata->default_unicast_key))) tx->key = key; - else if (tx->sdata->drop_unencrypted && - (tx->skb->protocol != tx->sdata->control_port_protocol) && - !(info->flags & IEEE80211_TX_CTL_INJECTED) && - (!ieee80211_is_robust_mgmt_frame(hdr) || - (ieee80211_is_action(hdr->frame_control) && - tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP)))) { + else if (info->flags & IEEE80211_TX_CTL_INJECTED) + tx->key = NULL; + else if (!tx->sdata->drop_unencrypted) + tx->key = NULL; + else if (tx->skb->protocol == tx->sdata->control_port_protocol) + tx->key = NULL; + else if (ieee80211_is_robust_mgmt_frame(hdr) && + !(ieee80211_is_action(hdr->frame_control) && + tx->sta && test_sta_flag(tx->sta, WLAN_STA_MFP))) + tx->key = NULL; + else { I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); return TX_DROP; - } else - tx->key = NULL; + } if (tx->key) { bool skip_hw = false; |