Release 4.15 net/mac80211/aead_api.c
/*
* Copyright 2003-2004, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright 2014-2015, Qualcomm Atheros, 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 <linux/scatterlist.h>
#include <crypto/aead.h>
#include "aead_api.h"
int aead_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len,
u8 *data, size_t data_len, u8 *mic)
{
size_t mic_len = crypto_aead_authsize(tfm);
struct scatterlist sg[3];
struct aead_request *aead_req;
int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
u8 *__aad;
aead_req = kzalloc(reqsize + aad_len, GFP_ATOMIC);
if (!aead_req)
return -ENOMEM;
__aad = (u8 *)aead_req + reqsize;
memcpy(__aad, aad, aad_len);
sg_init_table(sg, 3);
sg_set_buf(&sg[0], __aad, aad_len);
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 | 101 | 50.50% | 2 | 18.18% |
| Jiri Benc | 35 | 17.50% | 1 | 9.09% |
| Herbert Xu | 28 | 14.00% | 1 | 9.09% |
| Xiang Gao | 12 | 6.00% | 1 | 9.09% |
| Harvey Harrison | 9 | 4.50% | 2 | 18.18% |
| Jan-Simon Möller | 8 | 4.00% | 1 | 9.09% |
| Johannes Berg | 3 | 1.50% | 1 | 9.09% |
| Ilpo Järvinen | 3 | 1.50% | 1 | 9.09% |
| Jouni Malinen | 1 | 0.50% | 1 | 9.09% |
| Total | 200 | 100.00% | 11 | 100.00% |
int aead_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len,
u8 *data, size_t data_len, u8 *mic)
{
size_t mic_len = crypto_aead_authsize(tfm);
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 + aad_len, GFP_ATOMIC);
if (!aead_req)
return -ENOMEM;
__aad = (u8 *)aead_req + reqsize;
memcpy(__aad, aad, aad_len);
sg_init_table(sg, 3);
sg_set_buf(&sg[0], __aad, aad_len);
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 | 116 | 53.46% | 2 | 20.00% |
| Jiri Benc | 37 | 17.05% | 1 | 10.00% |
| Herbert Xu | 28 | 12.90% | 1 | 10.00% |
| Xiang Gao | 12 | 5.53% | 1 | 10.00% |
| Ronald Wahl | 10 | 4.61% | 1 | 10.00% |
| Jan-Simon Möller | 6 | 2.76% | 1 | 10.00% |
| Johannes Berg | 3 | 1.38% | 1 | 10.00% |
| Ilpo Järvinen | 3 | 1.38% | 1 | 10.00% |
| Jouni Malinen | 2 | 0.92% | 1 | 10.00% |
| Total | 217 | 100.00% | 10 | 100.00% |
struct crypto_aead *
aead_key_setup_encrypt(const char *alg, const u8 key[],
size_t key_len, size_t mic_len)
{
struct crypto_aead *tfm;
int err;
tfm = crypto_alloc_aead(alg, 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 | 40 | 39.22% | 1 | 20.00% |
| Ard Biesheuvel | 39 | 38.24% | 1 | 20.00% |
| Dan Carpenter | 8 | 7.84% | 1 | 20.00% |
| Jouni Malinen | 8 | 7.84% | 1 | 20.00% |
| Xiang Gao | 7 | 6.86% | 1 | 20.00% |
| Total | 102 | 100.00% | 5 | 100.00% |
void aead_key_free(struct crypto_aead *tfm)
{
crypto_free_aead(tfm);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jiri Benc | 12 | 80.00% | 1 | 33.33% |
| Ard Biesheuvel | 2 | 13.33% | 1 | 33.33% |
| Xiang Gao | 1 | 6.67% | 1 | 33.33% |
| Total | 15 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Ard Biesheuvel | 258 | 46.65% | 2 | 14.29% |
| Jiri Benc | 134 | 24.23% | 1 | 7.14% |
| Herbert Xu | 56 | 10.13% | 1 | 7.14% |
| Xiang Gao | 36 | 6.51% | 1 | 7.14% |
| Jan-Simon Möller | 14 | 2.53% | 1 | 7.14% |
| Jouni Malinen | 11 | 1.99% | 1 | 7.14% |
| Ronald Wahl | 10 | 1.81% | 1 | 7.14% |
| Ilpo Järvinen | 9 | 1.63% | 1 | 7.14% |
| Harvey Harrison | 9 | 1.63% | 2 | 14.29% |
| Johannes Berg | 8 | 1.45% | 2 | 14.29% |
| Dan Carpenter | 8 | 1.45% | 1 | 7.14% |
| Total | 553 | 100.00% | 14 | 100.00% |
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