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path: root/drivers/net/wireless/intersil/orinoco/mic.c
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Diffstat (limited to 'drivers/net/wireless/intersil/orinoco/mic.c')
-rw-r--r--drivers/net/wireless/intersil/orinoco/mic.c89
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;
-}