Release 4.11 drivers/net/wireless/intersil/orinoco/mic.c
/* 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,
CRYPTO_ALG_ASYNC);
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_shash("michael_mic", 0,
CRYPTO_ALG_ASYNC);
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Kilroy | 91 | 95.79% | 1 | 33.33% |
| Andrew Lutomirski | 2 | 2.11% | 1 | 33.33% |
| Herbert Xu | 2 | 2.11% | 1 | 33.33% |
| Total | 95 | 100.00% | 3 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Kilroy | 34 | 94.44% | 1 | 50.00% |
| Andrew Lutomirski | 2 | 5.56% | 1 | 50.00% |
| Total | 36 | 100.00% | 2 | 100.00% |
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 "orinoco_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;
desc->tfm = tfm_michael;
desc->flags = 0;
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Kilroy | 151 | 62.40% | 1 | 33.33% |
| Andrew Lutomirski | 65 | 26.86% | 1 | 33.33% |
| Herbert Xu | 26 | 10.74% | 1 | 33.33% |
| Total | 242 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Kilroy | 300 | 75.38% | 1 | 33.33% |
| Andrew Lutomirski | 69 | 17.34% | 1 | 33.33% |
| Herbert Xu | 29 | 7.29% | 1 | 33.33% |
| Total | 398 | 100.00% | 3 | 100.00% |
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