diff options
Diffstat (limited to 'drivers/net/wireless/orinoco/main.c')
-rw-r--r-- | drivers/net/wireless/orinoco/main.c | 76 |
1 files changed, 3 insertions, 73 deletions
diff --git a/drivers/net/wireless/orinoco/main.c b/drivers/net/wireless/orinoco/main.c index 1063f8cc84e6..f0454440dd7b 100644 --- a/drivers/net/wireless/orinoco/main.c +++ b/drivers/net/wireless/orinoco/main.c @@ -90,12 +90,10 @@ #include <linux/ieee80211.h> #include <net/iw_handler.h> -#include <linux/scatterlist.h> -#include <linux/crypto.h> - #include "hermes_rid.h" #include "hermes_dld.h" #include "scan.h" +#include "mic.h" #include "orinoco.h" @@ -255,74 +253,6 @@ static int __orinoco_program_rids(struct net_device *dev); static void __orinoco_set_multicast_list(struct net_device *dev); /********************************************************************/ -/* Michael MIC crypto setup */ -/********************************************************************/ -#define MICHAEL_MIC_LEN 8 -static int orinoco_mic_init(struct orinoco_private *priv) -{ - priv->tx_tfm_mic = crypto_alloc_hash("michael_mic", 0, 0); - if (IS_ERR(priv->tx_tfm_mic)) { - printk(KERN_DEBUG "orinoco_mic_init: could not allocate " - "crypto API michael_mic\n"); - priv->tx_tfm_mic = NULL; - return -ENOMEM; - } - - priv->rx_tfm_mic = crypto_alloc_hash("michael_mic", 0, 0); - if (IS_ERR(priv->rx_tfm_mic)) { - printk(KERN_DEBUG "orinoco_mic_init: could not allocate " - "crypto API michael_mic\n"); - priv->rx_tfm_mic = NULL; - return -ENOMEM; - } - - return 0; -} - -static void orinoco_mic_free(struct orinoco_private *priv) -{ - if (priv->tx_tfm_mic) - crypto_free_hash(priv->tx_tfm_mic); - if (priv->rx_tfm_mic) - crypto_free_hash(priv->rx_tfm_mic); -} - -static int michael_mic(struct crypto_hash *tfm_michael, u8 *key, - u8 *da, u8 *sa, u8 priority, - u8 *data, size_t data_len, u8 *mic) -{ - struct hash_desc desc; - struct scatterlist sg[2]; - u8 hdr[ETH_HLEN + 2]; /* size of header + padding */ - - if (tfm_michael == NULL) { - printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n"); - return -1; - } - - /* Copy header into buffer. We need the padding on the end zeroed */ - memcpy(&hdr[0], da, ETH_ALEN); - memcpy(&hdr[ETH_ALEN], sa, ETH_ALEN); - hdr[ETH_ALEN*2] = priority; - hdr[ETH_ALEN*2+1] = 0; - hdr[ETH_ALEN*2+2] = 0; - hdr[ETH_ALEN*2+3] = 0; - - /* Use scatter gather to MIC header and data in one go */ - sg_init_table(sg, 2); - sg_set_buf(&sg[0], hdr, sizeof(hdr)); - sg_set_buf(&sg[1], data, data_len); - - if (crypto_hash_setkey(tfm_michael, key, MIC_KEYLEN)) - return -1; - - desc.tfm = tfm_michael; - desc.flags = 0; - return crypto_hash_digest(&desc, sg, data_len + sizeof(hdr), - mic); -} - -/********************************************************************/ /* Internal helper functions */ /********************************************************************/ @@ -1001,7 +931,7 @@ static int orinoco_xmit(struct sk_buff *skb, struct net_device *dev) len = MICHAEL_MIC_LEN; } - michael_mic(priv->tx_tfm_mic, + orinoco_mic(priv->tx_tfm_mic, priv->tkip_key[priv->tx_key].tx_mic, eh->h_dest, eh->h_source, 0 /* priority */, skb->data + ETH_HLEN, skb->len - ETH_HLEN, mic); @@ -1479,7 +1409,7 @@ static void orinoco_rx(struct net_device *dev, skb_trim(skb, skb->len - MICHAEL_MIC_LEN); length -= MICHAEL_MIC_LEN; - michael_mic(priv->rx_tfm_mic, + orinoco_mic(priv->rx_tfm_mic, priv->tkip_key[key_id].rx_mic, desc->addr1, src, |