#ifndef _CRYPTO_XTS_H
#define _CRYPTO_XTS_H

#include <crypto/b128ops.h>
#include <crypto/internal/skcipher.h>
#include <linux/fips.h>

struct scatterlist;
struct blkcipher_desc;

#define XTS_BLOCK_SIZE 16

struct xts_crypt_req {
	be128 *tbuf;
	unsigned int tbuflen;

	void *tweak_ctx;
	void (*tweak_fn)(void *ctx, u8* dst, const u8* src);
	void *crypt_ctx;
	void (*crypt_fn)(void *ctx, u8 *blks, unsigned int nbytes);
};

#define XTS_TWEAK_CAST(x) ((void (*)(void *, u8*, const u8*))(x))

int xts_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,
	      struct scatterlist *src, unsigned int nbytes,
	      struct xts_crypt_req *req);

static inline int xts_check_key(struct crypto_tfm *tfm,
				const u8 *key, unsigned int keylen)
{
	u32 *flags = &tfm->crt_flags;

	/*
	 * key consists of keys of equal size concatenated, therefore
	 * the length must be even.
	 */
	if (keylen % 2) {
		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
		return -EINVAL;
	}

	/* ensure that the AES and tweak key are not identical */
	if (fips_enabled &&
	    !crypto_memneq(key, key + (keylen / 2), keylen / 2)) {
		*flags |= CRYPTO_TFM_RES_WEAK_KEY;
		return -EINVAL;
	}

	return 0;
}

static inline int xts_verify_key(struct crypto_skcipher *tfm,
				 const u8 *key, unsigned int keylen)
{
	/*
	 * key consists of keys of equal size concatenated, therefore
	 * the length must be even.
	 */
	if (keylen % 2) {
		crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
		return -EINVAL;
	}

	/* ensure that the AES and tweak key are not identical */
	if ((fips_enabled || crypto_skcipher_get_flags(tfm) &
			     CRYPTO_TFM_REQ_WEAK_KEY) &&
	    !crypto_memneq(key, key + (keylen / 2), keylen / 2)) {
		crypto_skcipher_set_flags(tfm, CRYPTO_TFM_RES_WEAK_KEY);
		return -EINVAL;
	}

	return 0;
}

#endif  /* _CRYPTO_XTS_H */
net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/net/irda/qos.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/irda?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>irda</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>qos.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>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>Giovanni Cabiddu &lt;giovanni.cabiddu@intel.com&gt;</td><td class='right'>2016-12-22 15:00:12 +0000</td></tr>
<tr><th>committer</th><td>Herbert Xu &lt;herbert@gondor.apana.org.au&gt;</td><td class='right'>2017-02-02 21:54:52 +0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>3484ecbe0e9deb94afb0b9b6172d77e98eb72b94</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>4d4be0d20d4946c51ef47a882d78c9934a219c0e</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>include/net/irda/qos.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/irda/qos.h?id=11e3b725cfc282efe9d4a354153e99d86a16af08'>11e3b725cfc282efe9d4a354153e99d86a16af08</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/irda/qos.h?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94&amp;id2=11e3b725cfc282efe9d4a354153e99d86a16af08'>diff</a>)</td></tr></table>
<div class='commit-subject'>crypto: qat - fix bar discovery for c62x</div><div class='commit-msg'>Some accelerators of the c62x series have only two bars.
This patch skips BAR0 if the accelerator does not have it.

Cc: &lt;stable@vger.kernel.org&gt;
Signed-off-by: Giovanni Cabiddu &lt;giovanni.cabiddu@intel.com&gt;
Signed-off-by: Herbert Xu &lt;herbert@gondor.apana.org.au&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=3484ecbe0e9deb94afb0b9b6172d77e98eb72b94'>Diffstat</a> (limited to 'include/net/irda/qos.h')</div><table summary='diffstat' class='diffstat'>