Release 4.8 net/mac80211/aes_ccm.c
/*
* Copyright 2003-2004, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
*
* Rewrite: Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/err.h>
#include <crypto/aead.h>
#include <net/mac80211.h>
#include "key.h"
#include "aes_ccm.h"
void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
u8 *data, size_t data_len, u8 *mic,
size_t mic_len)
{
struct scatterlist sg[3];
char aead_req_data[sizeof(struct aead_request) +
crypto_aead_reqsize(tfm)]
__aligned(__alignof__(struct aead_request));
struct aead_request *aead_req = (void *) aead_req_data;
memset(aead_req, 0, sizeof(aead_req_data));
sg_init_table(sg, 3);
sg_set_buf(&sg[0], &aad[2], be16_to_cpup((__be16 *)aad));
sg_set_buf(&sg[1], data, data_len);
sg_set_buf(&sg[2], mic, mic_len);
aead_request_set_tfm(aead_req, tfm);
aead_request_set_crypt(aead_req, sg, sg, data_len, b_0);
aead_request_set_ad(aead_req, sg[0].length);
crypto_aead_encrypt(aead_req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ard biesheuvel | ard biesheuvel | 67 | 37.43% | 1 | 12.50% |
| jiri benc | jiri benc | 41 | 22.91% | 1 | 12.50% |
| herbert xu | herbert xu | 28 | 15.64% | 1 | 12.50% |
| jan-simon moller | jan-simon moller | 27 | 15.08% | 1 | 12.50% |
| harvey harrison | harvey harrison | 9 | 5.03% | 2 | 25.00% |
| jouni malinen | jouni malinen | 4 | 2.23% | 1 | 12.50% |
| ilpo jarvinen | ilpo jarvinen | 3 | 1.68% | 1 | 12.50% |
| Total | 179 | 100.00% | 8 | 100.00% |
int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
u8 *data, size_t data_len, u8 *mic,
size_t mic_len)
{
struct scatterlist sg[3];
char aead_req_data[sizeof(struct aead_request) +
crypto_aead_reqsize(tfm)]
__aligned(__alignof__(struct aead_request));
struct aead_request *aead_req = (void *) aead_req_data;
if (data_len == 0)
return -EINVAL;
memset(aead_req, 0, sizeof(aead_req_data));
sg_init_table(sg, 3);
sg_set_buf(&sg[0], &aad[2], be16_to_cpup((__be16 *)aad));
sg_set_buf(&sg[1], data, data_len);
sg_set_buf(&sg[2], mic, mic_len);
aead_request_set_tfm(aead_req, tfm);
aead_request_set_crypt(aead_req, sg, sg, data_len + mic_len, b_0);
aead_request_set_ad(aead_req, sg[0].length);
return crypto_aead_decrypt(aead_req);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ard biesheuvel | ard biesheuvel | 76 | 39.58% | 1 | 14.29% |
| jiri benc | jiri benc | 43 | 22.40% | 1 | 14.29% |
| herbert xu | herbert xu | 28 | 14.58% | 1 | 14.29% |
| jan-simon moller | jan-simon moller | 27 | 14.06% | 1 | 14.29% |
| ronald wahl | ronald wahl | 10 | 5.21% | 1 | 14.29% |
| jouni malinen | jouni malinen | 5 | 2.60% | 1 | 14.29% |
| ilpo jarvinen | ilpo jarvinen | 3 | 1.56% | 1 | 14.29% |
| Total | 192 | 100.00% | 7 | 100.00% |
struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[],
size_t key_len,
size_t mic_len)
{
struct crypto_aead *tfm;
int err;
tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm))
return tfm;
err = crypto_aead_setkey(tfm, key, key_len);
if (err)
goto free_aead;
err = crypto_aead_setauthsize(tfm, mic_len);
if (err)
goto free_aead;
return tfm;
free_aead:
crypto_free_aead(tfm);
return ERR_PTR(err);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jiri benc | jiri benc | 41 | 42.27% | 1 | 25.00% |
| ard biesheuvel | ard biesheuvel | 40 | 41.24% | 1 | 25.00% |
| dan carpenter | dan carpenter | 8 | 8.25% | 1 | 25.00% |
| jouni malinen | jouni malinen | 8 | 8.25% | 1 | 25.00% |
| Total | 97 | 100.00% | 4 | 100.00% |
void ieee80211_aes_key_free(struct crypto_aead *tfm)
{
crypto_free_aead(tfm);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jiri benc | jiri benc | 13 | 86.67% | 1 | 50.00% |
| ard biesheuvel | ard biesheuvel | 2 | 13.33% | 1 | 50.00% |
| Total | 15 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| ard biesheuvel | ard biesheuvel | 186 | 36.83% | 1 | 7.69% |
| jiri benc | jiri benc | 152 | 30.10% | 1 | 7.69% |
| herbert xu | herbert xu | 57 | 11.29% | 2 | 15.38% |
| jan-simon moller | jan-simon moller | 54 | 10.69% | 1 | 7.69% |
| jouni malinen | jouni malinen | 17 | 3.37% | 1 | 7.69% |
| ronald wahl | ronald wahl | 10 | 1.98% | 1 | 7.69% |
| harvey harrison | harvey harrison | 9 | 1.78% | 2 | 15.38% |
| ilpo jarvinen | ilpo jarvinen | 9 | 1.78% | 1 | 7.69% |
| dan carpenter | dan carpenter | 8 | 1.58% | 1 | 7.69% |
| johannes berg | johannes berg | 3 | 0.59% | 2 | 15.38% |
| Total | 505 | 100.00% | 13 | 100.00% |
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