diff options
Diffstat (limited to 'drivers/net/wireless/intersil/orinoco/mic.c')
-rw-r--r-- | drivers/net/wireless/intersil/orinoco/mic.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/drivers/net/wireless/intersil/orinoco/mic.c b/drivers/net/wireless/intersil/orinoco/mic.c deleted file mode 100644 index a324bc4b7938..000000000000 --- a/drivers/net/wireless/intersil/orinoco/mic.c +++ /dev/null @@ -1,89 +0,0 @@ -/* Orinoco MIC helpers - * - * See copyright notice in main.c - */ -#include <linux/kernel.h> -#include <linux/string.h> -#include <linux/if_ether.h> -#include <linux/scatterlist.h> -#include <crypto/hash.h> - -#include "orinoco.h" -#include "mic.h" - -/********************************************************************/ -/* Michael MIC crypto setup */ -/********************************************************************/ -int orinoco_mic_init(struct orinoco_private *priv) -{ - priv->tx_tfm_mic = crypto_alloc_shash("michael_mic", 0, 0); - if (IS_ERR(priv->tx_tfm_mic)) { - printk(KERN_DEBUG "%s: could not allocate " - "crypto API michael_mic\n", __func__); - priv->tx_tfm_mic = NULL; - return -ENOMEM; - } - - priv->rx_tfm_mic = crypto_alloc_shash("michael_mic", 0, 0); - if (IS_ERR(priv->rx_tfm_mic)) { - printk(KERN_DEBUG "%s: could not allocate " - "crypto API michael_mic\n", __func__); - priv->rx_tfm_mic = NULL; - return -ENOMEM; - } - - return 0; -} - -void orinoco_mic_free(struct orinoco_private *priv) -{ - if (priv->tx_tfm_mic) - crypto_free_shash(priv->tx_tfm_mic); - if (priv->rx_tfm_mic) - crypto_free_shash(priv->rx_tfm_mic); -} - -int orinoco_mic(struct crypto_shash *tfm_michael, u8 *key, - u8 *da, u8 *sa, u8 priority, - u8 *data, size_t data_len, u8 *mic) -{ - SHASH_DESC_ON_STACK(desc, tfm_michael); - u8 hdr[ETH_HLEN + 2]; /* size of header + padding */ - int err; - - if (tfm_michael == NULL) { - printk(KERN_WARNING "%s: tfm_michael == NULL\n", __func__); - 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; - - desc->tfm = tfm_michael; - - err = crypto_shash_setkey(tfm_michael, key, MIC_KEYLEN); - if (err) - return err; - - err = crypto_shash_init(desc); - if (err) - return err; - - err = crypto_shash_update(desc, hdr, sizeof(hdr)); - if (err) - return err; - - err = crypto_shash_update(desc, data, data_len); - if (err) - return err; - - err = crypto_shash_final(desc, mic); - shash_desc_zero(desc); - - return err; -} |