diff options
| author | Mattias Nissler <mattias.nissler@gmx.de> | 2007-10-07 16:35:31 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:55:23 -0700 |
| commit | e2f036da2f8f72894988670953a1141da785e4f5 (patch) | |
| tree | 94970130c987b71eb63f323b602447c99fe57ccc | |
| parent | 0654ff055c6ce5642eed88ba22915b0e56666794 (diff) | |
| download | linux-e2f036da2f8f72894988670953a1141da785e4f5.tar.bz2 | |
[PATCH] mac80211: Defer setting of RX_FLAG_DECRYPTED.
The decryption handlers will skip the frame if the RX_FLAG_DECRYPTED
flag is set, so the early flag setting introduced by Johannes breaks
decryption. To work around this, call the handlers first and then set
the flag.
Signed-off-by: Mattias Nissler <mattias.nissler@gmx.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | net/mac80211/rx.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 4c046af237e3..ece77766ea2b 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -424,6 +424,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx) struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data; int keyidx; int hdrlen; + ieee80211_txrx_result result = TXRX_DROP; struct ieee80211_key *stakey = NULL; /* @@ -522,21 +523,22 @@ ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx) ieee80211_wep_is_weak_iv(rx->skb, rx->key)) rx->sta->wep_weak_iv_count++; - /* either the frame will be decrypted or dropped */ - rx->u.rx.status->flag |= RX_FLAG_DECRYPTED; - switch (rx->key->conf.alg) { case ALG_WEP: - return ieee80211_crypto_wep_decrypt(rx); + result = ieee80211_crypto_wep_decrypt(rx); + break; case ALG_TKIP: - return ieee80211_crypto_tkip_decrypt(rx); + result = ieee80211_crypto_tkip_decrypt(rx); + break; case ALG_CCMP: - return ieee80211_crypto_ccmp_decrypt(rx); + result = ieee80211_crypto_ccmp_decrypt(rx); + break; } - /* not reached */ - WARN_ON(1); - return TXRX_DROP; + /* either the frame has been decrypted or will be dropped */ + rx->u.rx.status->flag |= RX_FLAG_DECRYPTED; + + return result; } static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta) |