Release 4.8 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_ahash("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_ahash("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 | david kilroy | 91 | 95.79% | 1 | 50.00% |
| herbert xu | herbert xu | 4 | 4.21% | 1 | 50.00% |
| Total | 95 | 100.00% | 2 | 100.00% |
void orinoco_mic_free(struct orinoco_private *priv)
{
if (priv->tx_tfm_mic)
crypto_free_ahash(priv->tx_tfm_mic);
if (priv->rx_tfm_mic)
crypto_free_ahash(priv->rx_tfm_mic);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| david kilroy | david kilroy | 34 | 94.44% | 1 | 50.00% |
| herbert xu | herbert xu | 2 | 5.56% | 1 | 50.00% |
| Total | 36 | 100.00% | 2 | 100.00% |
int orinoco_mic(struct crypto_ahash *tfm_michael, u8 *key,
u8 *da, u8 *sa, u8 priority,
u8 *data, size_t data_len, u8 *mic)
{
AHASH_REQUEST_ON_STACK(req, tfm_michael);
struct scatterlist sg[2];
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;
/* 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_ahash_setkey(tfm_michael, key, MIC_KEYLEN))
return -1;
ahash_request_set_tfm(req, tfm_michael);
ahash_request_set_callback(req, 0, NULL, NULL);
ahash_request_set_crypt(req, sg, mic, data_len + sizeof(hdr));
err = crypto_ahash_digest(req);
ahash_request_zero(req);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| david kilroy | david kilroy | 205 | 82.00% | 1 | 50.00% |
| herbert xu | herbert xu | 45 | 18.00% | 1 | 50.00% |
| Total | 250 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| david kilroy | david kilroy | 354 | 87.19% | 1 | 50.00% |
| herbert xu | herbert xu | 52 | 12.81% | 1 | 50.00% |
| Total | 406 | 100.00% | 2 | 100.00% |
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