/*
 * 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;
}

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;
}

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);
}

void ieee80211_aes_key_free(struct crypto_aead *tfm)
{
	crypto_free_aead(tfm);
}
og/?id=69973b830859bc6529a7a0468ba0d80ee5117826'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?id=69973b830859bc6529a7a0468ba0d80ee5117826'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/testing?id=69973b830859bc6529a7a0468ba0d80ee5117826'>testing</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/testing/selftests?id=69973b830859bc6529a7a0468ba0d80ee5117826'>selftests</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/testing/selftests/lib?id=69973b830859bc6529a7a0468ba0d80ee5117826'>lib</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/testing/selftests/lib/bitmap.sh?id=69973b830859bc6529a7a0468ba0d80ee5117826'>bitmap.sh</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools/testing/selftests/lib/bitmap.sh?id=69973b830859bc6529a7a0468ba0d80ee5117826&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Jurij Smakov &lt;jurij@wooyd.org&gt;</td><td class='right'>2017-01-30 15:41:36 -0600</td></tr>
<tr><th>committer</th><td>Kalle Valo &lt;kvalo@codeaurora.org&gt;</td><td class='right'>2017-01-31 09:05:25 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ceph/osd_client.c?id=52f5631a4c056ad01682393be56d2be237e81610'>52f5631a4c056ad01682393be56d2be237e81610</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/ceph/osd_client.c?id=52f5631a4c056ad01682393be56d2be237e81610'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=52f5631a4c056ad01682393be56d2be237e81610'>53d1ddd2c1b179c808df10b6ce731ad26aa9f31b</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/ceph/osd_client.c?id=52f5631a4c056ad01682393be56d2be237e81610'>net/ceph/osd_client.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ceph/osd_client.c?id=2b1d530cb3157f828fcaadd259613f59db3c6d1c'>2b1d530cb3157f828fcaadd259613f59db3c6d1c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ceph/osd_client.c?id=52f5631a4c056ad01682393be56d2be237e81610&amp;id2=2b1d530cb3157f828fcaadd259613f59db3c6d1c'>diff</a>)</td></tr></table>
<div class='commit-subject'>rtlwifi: rtl8192ce: Fix loading of incorrect firmware</div><div class='commit-msg'>In commit cf4747d7535a ("rtlwifi: Fix regression caused by commit
d86e64768859, an error in the edit results in the wrong firmware
being loaded for some models of the RTL8188/8192CE. In this condition,
the connection suffered from high ping latency, slow transfer rates,
 and required higher signal strengths to work at all

See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=853073,
https://bugzilla.opensuse.org/show_bug.cgi?id=1017471, and
https://github.com/lwfinger/rtlwifi_new/issues/203 for descriptions
of the problems. This patch fixes all of those problems.

Fixes: cf4747d7535a ("rtlwifi: Fix regression caused by commit d86e64768859")
Signed-off-by: Jurij Smakov &lt;jurij@wooyd.org&gt;
Signed-off-by: Larry Finger &lt;Larry.Finger@lwfinger.net&gt;
Cc: Stable &lt;stable@vger.kernel.org&gt; # 4.9+
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=52f5631a4c056ad01682393be56d2be237e81610'>Diffstat</a> (limited to 'net/ceph/osd_client.c')</div><table summary='diffstat' class='diffstat'>