From c6a1fa12d206882757264869f8e32d606b930e2a Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 7 Oct 2008 12:04:32 +0200 Subject: mac80211: minor code cleanups Nothing very interesting, some checkpatch inspired stuff, some other things. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/wpa.c | 29 ++++++++++------------------- 1 file changed, 10 insertions(+), 19 deletions(-) (limited to 'net/mac80211/wpa.c') diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 3a20b036ef4..7aa63caf8d5 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -49,8 +49,7 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) !(tx->flags & IEEE80211_TX_FRAGMENTED) && !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) && !wpa_test) { - /* hwaccel - with no need for preallocated room for Michael MIC - */ + /* hwaccel - with no need for preallocated room for MMIC */ return TX_CONTINUE; } @@ -67,8 +66,6 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) #else authenticator = 1; #endif - /* At this point we know we're using ALG_TKIP. To get the MIC key - * we now will rely on the offset from the ieee80211_key_conf::key */ key_offset = authenticator ? NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY : NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY; @@ -91,9 +88,7 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) struct sk_buff *skb = rx->skb; int authenticator = 1, wpa_test = 0; - /* - * No way to verify the MIC if the hardware stripped it - */ + /* No way to verify the MIC if the hardware stripped it */ if (rx->status->flag & RX_FLAG_MMIC_STRIPPED) return RX_CONTINUE; @@ -115,8 +110,6 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) #else authenticator = 1; #endif - /* At this point we know we're using ALG_TKIP. To get the MIC key - * we now will rely on the offset from the ieee80211_key_conf::key */ key_offset = authenticator ? NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY : NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY; @@ -201,6 +194,7 @@ ieee80211_tx_result ieee80211_crypto_tkip_encrypt(struct ieee80211_tx_data *tx) { struct sk_buff *skb = tx->skb; + int i; ieee80211_tx_set_protected(tx); @@ -208,9 +202,8 @@ ieee80211_crypto_tkip_encrypt(struct ieee80211_tx_data *tx) return TX_DROP; if (tx->extra_frag) { - int i; for (i = 0; i < tx->num_extra_frag; i++) { - if (tkip_encrypt_skb(tx, tx->extra_frag[i]) < 0) + if (tkip_encrypt_skb(tx, tx->extra_frag[i])) return TX_DROP; } } @@ -348,7 +341,7 @@ static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id) } -static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr) +static inline void ccmp_hdr2pn(u8 *pn, u8 *hdr) { pn[0] = hdr[7]; pn[1] = hdr[6]; @@ -356,7 +349,6 @@ static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr) pn[3] = hdr[4]; pn[4] = hdr[1]; pn[5] = hdr[0]; - return (hdr[3] >> 6) & 0x03; } @@ -371,7 +363,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) && !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { - /* hwaccel - with no need for preallocated room for CCMP " + /* hwaccel - with no need for preallocated room for CCMP * header or MIC fields */ info->control.hw_key = &tx->key->conf; return 0; @@ -424,6 +416,7 @@ ieee80211_tx_result ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx) { struct sk_buff *skb = tx->skb; + int i; ieee80211_tx_set_protected(tx); @@ -431,9 +424,8 @@ ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx) return TX_DROP; if (tx->extra_frag) { - int i; for (i = 0; i < tx->num_extra_frag; i++) { - if (ccmp_encrypt_skb(tx, tx->extra_frag[i]) < 0) + if (ccmp_encrypt_skb(tx, tx->extra_frag[i])) return TX_DROP; } } @@ -465,7 +457,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) (rx->status->flag & RX_FLAG_IV_STRIPPED)) return RX_CONTINUE; - (void) ccmp_hdr2pn(pn, skb->data + hdrlen); + ccmp_hdr2pn(pn, skb->data + hdrlen); if (memcmp(pn, key->u.ccmp.rx_pn[rx->queue], CCMP_PN_LEN) <= 0) { key->u.ccmp.replays++; @@ -480,9 +472,8 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) key->u.ccmp.tfm, key->u.ccmp.rx_crypto_buf, skb->data + hdrlen + CCMP_HDR_LEN, data_len, skb->data + skb->len - CCMP_MIC_LEN, - skb->data + hdrlen + CCMP_HDR_LEN)) { + skb->data + hdrlen + CCMP_HDR_LEN)) return RX_DROP_UNUSABLE; - } } memcpy(key->u.ccmp.rx_pn[rx->queue], pn, CCMP_PN_LEN); -- cgit v1.2.3