Contributors: 10
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| David Kilroy |
237 |
59.55% |
4 |
21.05% |
| Andrew Lutomirski |
65 |
16.33% |
1 |
5.26% |
| Herbert Xu |
27 |
6.78% |
1 |
5.26% |
| Dan J Williams |
23 |
5.78% |
1 |
5.26% |
| David Gibson |
16 |
4.02% |
4 |
21.05% |
| Keyur Patel |
9 |
2.26% |
1 |
5.26% |
| Pavel Roskin |
7 |
1.76% |
1 |
5.26% |
| Linus Torvalds |
7 |
1.76% |
2 |
10.53% |
| Linus Torvalds (pre-git) |
5 |
1.26% |
3 |
15.79% |
| Eric Biggers |
2 |
0.50% |
1 |
5.26% |
| Total |
398 |
|
19 |
|
/* 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;
}