Release 4.11 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"
int 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];
struct aead_request *aead_req;
int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
u8 *__aad;
aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC);
if (!aead_req)
return -ENOMEM;
__aad = (u8 *)aead_req + reqsize;
memcpy(__aad, aad, CCM_AAD_LEN);
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);
kzfree(aead_req);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ard Biesheuvel | 113 | 55.67% | 2 | 22.22% |
| Jiri Benc | 39 | 19.21% | 1 | 11.11% |
| Herbert Xu | 28 | 13.79% | 1 | 11.11% |
| Harvey Harrison | 8 | 3.94% | 2 | 22.22% |
| Jan-Simon Möller | 8 | 3.94% | 1 | 11.11% |
| Jouni Malinen | 4 | 1.97% | 1 | 11.11% |
| Ilpo Järvinen | 3 | 1.48% | 1 | 11.11% |
| Total | 203 | 100.00% | 9 | 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];
struct aead_request *aead_req;
int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
u8 *__aad;
int err;
if (data_len == 0)
return -EINVAL;
aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC);
if (!aead_req)
return -ENOMEM;
__aad = (u8 *)aead_req + reqsize;
memcpy(__aad, aad, CCM_AAD_LEN);
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);
err = crypto_aead_decrypt(aead_req);
kzfree(aead_req);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ard Biesheuvel | 126 | 57.27% | 2 | 25.00% |
| Jiri Benc | 42 | 19.09% | 1 | 12.50% |
| Herbert Xu | 28 | 12.73% | 1 | 12.50% |
| Ronald Wahl | 10 | 4.55% | 1 | 12.50% |
| Jan-Simon Möller | 6 | 2.73% | 1 | 12.50% |
| Jouni Malinen | 5 | 2.27% | 1 | 12.50% |
| Ilpo Järvinen | 3 | 1.36% | 1 | 12.50% |
| Total | 220 | 100.00% | 8 | 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 | 41 | 42.27% | 1 | 25.00% |
| Ard Biesheuvel | 40 | 41.24% | 1 | 25.00% |
| Jouni Malinen | 8 | 8.25% | 1 | 25.00% |
| Dan Carpenter | 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 | 13 | 86.67% | 1 | 50.00% |
| Ard Biesheuvel | 2 | 13.33% | 1 | 50.00% |
| Total | 15 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ard Biesheuvel | 282 | 50.63% | 2 | 14.29% |
| Jiri Benc | 149 | 26.75% | 1 | 7.14% |
| Herbert Xu | 57 | 10.23% | 2 | 14.29% |
| Jouni Malinen | 17 | 3.05% | 1 | 7.14% |
| Jan-Simon Möller | 14 | 2.51% | 1 | 7.14% |
| Ronald Wahl | 10 | 1.80% | 1 | 7.14% |
| Ilpo Järvinen | 9 | 1.62% | 1 | 7.14% |
| Harvey Harrison | 8 | 1.44% | 2 | 14.29% |
| Dan Carpenter | 8 | 1.44% | 1 | 7.14% |
| Johannes Berg | 3 | 0.54% | 2 | 14.29% |
| Total | 557 | 100.00% | 14 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.