diff options
Diffstat (limited to 'drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c')
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c | 47 |
1 files changed, 21 insertions, 26 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c index a66141647f2d..27ce4817faeb 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt_ccmp.c @@ -71,10 +71,9 @@ static void *ieee80211_ccmp_init(int key_idx) goto fail; priv->key_idx = key_idx; - priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); + priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(priv->tfm)) { - printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate " - "crypto API aes\n"); + printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate crypto API aes\n"); priv->tfm = NULL; goto fail; } @@ -105,6 +104,7 @@ static void ieee80211_ccmp_deinit(void *priv) static inline void xor_block(u8 *b, u8 *a, size_t len) { int i; + for (i = 0; i < len; i++) b[i] ^= a[i]; } @@ -125,10 +125,9 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, fc = le16_to_cpu(hdr->frame_ctl); a4_included = ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) == (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)); - /* - qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) && - (WLAN_FC_GET_STYPE(fc) & 0x08)); - */ + /* qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) && + * (WLAN_FC_GET_STYPE(fc) & 0x08)); + */ /* fixed by David :2006.9.6 */ qc_included = (WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) && (WLAN_FC_GET_STYPE(fc) & 0x80); @@ -146,7 +145,8 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm, * Flag (Include authentication header, M=3 (8-octet MIC), * L=1 (2-octet Dlen)) * Nonce: 0x00 | A2 | PN - * Dlen */ + * Dlen + */ b0[0] = 0x59; b0[1] = qc; memcpy(b0 + 2, hdr->addr2, ETH_ALEN); @@ -229,8 +229,7 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv) hdr = (struct rtl_80211_hdr_4addr *) skb->data; - if (!tcb_desc->bHwSec) - { + if (!tcb_desc->bHwSec) { int blocks, last, len; u8 *mic; u8 *b0 = key->tx_b0; @@ -284,23 +283,22 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) keyidx = pos[3]; if (!(keyidx & (1 << 5))) { if (net_ratelimit()) { - printk(KERN_DEBUG "CCMP: received packet without ExtIV" - " flag from %pM\n", hdr->addr2); + printk(KERN_DEBUG "CCMP: received packet without ExtIV flag from %pM\n", + hdr->addr2); } key->dot11RSNAStatsCCMPFormatErrors++; return -2; } keyidx >>= 6; if (key->key_idx != keyidx) { - printk(KERN_DEBUG "CCMP: RX tkey->key_idx=%d frame " - "keyidx=%d priv=%p\n", key->key_idx, keyidx, priv); + printk(KERN_DEBUG "CCMP: RX tkey->key_idx=%d frame keyidx=%d priv=%p\n", + key->key_idx, keyidx, priv); return -6; } if (!key->key_set) { if (net_ratelimit()) { - printk(KERN_DEBUG "CCMP: received packet from %pM" - " with keyid=%d that does not have a configured" - " key\n", hdr->addr2, keyidx); + printk(KERN_DEBUG "CCMP: received packet from %pM with keyid=%d that does not have a configured key\n", + hdr->addr2, keyidx); } return -3; } @@ -315,15 +313,13 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) if (memcmp(pn, key->rx_pn, CCMP_PN_LEN) <= 0) { if (net_ratelimit()) { - printk(KERN_DEBUG "CCMP: replay detected: STA=%pM" - " previous PN %pm received PN %pm\n", + printk(KERN_DEBUG "CCMP: replay detected: STA=%pM previous PN %pm received PN %pm\n", hdr->addr2, key->rx_pn, pn); } key->dot11RSNAStatsCCMPReplays++; return -4; } - if (!tcb_desc->bHwSec) - { + if (!tcb_desc->bHwSec) { size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN; u8 *mic = skb->data + skb->len - CCMP_MIC_LEN; u8 *b0 = key->rx_b0; @@ -353,8 +349,8 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv) if (memcmp(mic, a, CCMP_MIC_LEN) != 0) { if (net_ratelimit()) { - printk(KERN_DEBUG "CCMP: decrypt failed: STA=" - "%pM\n", hdr->addr2); + printk(KERN_DEBUG "CCMP: decrypt failed: STA=%pM\n", + hdr->addr2); } key->dot11RSNAStatsCCMPDecryptErrors++; return -5; @@ -429,9 +425,8 @@ static int ieee80211_ccmp_get_key(void *key, int len, u8 *seq, void *priv) static char *ieee80211_ccmp_print_stats(char *p, void *priv) { struct ieee80211_ccmp_data *ccmp = priv; - p += sprintf(p, "key[%d] alg=CCMP key_set=%d " - "tx_pn=%pm rx_pn=%pm " - "format_errors=%d replays=%d decrypt_errors=%d\n", + + p += sprintf(p, "key[%d] alg=CCMP key_set=%d tx_pn=%pm rx_pn=%pm format_errors=%d replays=%d decrypt_errors=%d\n", ccmp->key_idx, ccmp->key_set, ccmp->tx_pn, ccmp->rx_pn, ccmp->dot11RSNAStatsCCMPFormatErrors, |