/*
 * Common values for SHA algorithms
 */

#ifndef _CRYPTO_SHA_H
#define _CRYPTO_SHA_H

#include <linux/types.h>

#define SHA1_DIGEST_SIZE        20
#define SHA1_BLOCK_SIZE         64

#define SHA224_DIGEST_SIZE	28
#define SHA224_BLOCK_SIZE	64

#define SHA256_DIGEST_SIZE      32
#define SHA256_BLOCK_SIZE       64

#define SHA384_DIGEST_SIZE      48
#define SHA384_BLOCK_SIZE       128

#define SHA512_DIGEST_SIZE      64
#define SHA512_BLOCK_SIZE       128

#define SHA1_H0		0x67452301UL
#define SHA1_H1		0xefcdab89UL
#define SHA1_H2		0x98badcfeUL
#define SHA1_H3		0x10325476UL
#define SHA1_H4		0xc3d2e1f0UL

#define SHA224_H0	0xc1059ed8UL
#define SHA224_H1	0x367cd507UL
#define SHA224_H2	0x3070dd17UL
#define SHA224_H3	0xf70e5939UL
#define SHA224_H4	0xffc00b31UL
#define SHA224_H5	0x68581511UL
#define SHA224_H6	0x64f98fa7UL
#define SHA224_H7	0xbefa4fa4UL

#define SHA256_H0	0x6a09e667UL
#define SHA256_H1	0xbb67ae85UL
#define SHA256_H2	0x3c6ef372UL
#define SHA256_H3	0xa54ff53aUL
#define SHA256_H4	0x510e527fUL
#define SHA256_H5	0x9b05688cUL
#define SHA256_H6	0x1f83d9abUL
#define SHA256_H7	0x5be0cd19UL

#define SHA384_H0	0xcbbb9d5dc1059ed8ULL
#define SHA384_H1	0x629a292a367cd507ULL
#define SHA384_H2	0x9159015a3070dd17ULL
#define SHA384_H3	0x152fecd8f70e5939ULL
#define SHA384_H4	0x67332667ffc00b31ULL
#define SHA384_H5	0x8eb44a8768581511ULL
#define SHA384_H6	0xdb0c2e0d64f98fa7ULL
#define SHA384_H7	0x47b5481dbefa4fa4ULL

#define SHA512_H0	0x6a09e667f3bcc908ULL
#define SHA512_H1	0xbb67ae8584caa73bULL
#define SHA512_H2	0x3c6ef372fe94f82bULL
#define SHA512_H3	0xa54ff53a5f1d36f1ULL
#define SHA512_H4	0x510e527fade682d1ULL
#define SHA512_H5	0x9b05688c2b3e6c1fULL
#define SHA512_H6	0x1f83d9abfb41bd6bULL
#define SHA512_H7	0x5be0cd19137e2179ULL

extern const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE];

extern const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE];

extern const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE];

struct sha1_state {
	u32 state[SHA1_DIGEST_SIZE / 4];
	u64 count;
	u8 buffer[SHA1_BLOCK_SIZE];
};

struct sha256_state {
	u32 state[SHA256_DIGEST_SIZE / 4];
	u64 count;
	u8 buf[SHA256_BLOCK_SIZE];
};

struct sha512_state {
	u64 state[SHA512_DIGEST_SIZE / 8];
	u64 count[2];
	u8 buf[SHA512_BLOCK_SIZE];
};

struct shash_desc;

extern int crypto_sha1_update(struct shash_desc *desc, const u8 *data,
			      unsigned int len);

extern int crypto_sha1_finup(struct shash_desc *desc, const u8 *data,
			     unsigned int len, u8 *hash);

extern int crypto_sha256_update(struct shash_desc *desc, const u8 *data,
			      unsigned int len);

extern int crypto_sha256_finup(struct shash_desc *desc, const u8 *data,
			       unsigned int len, u8 *hash);

extern int crypto_sha512_update(struct shash_desc *desc, const u8 *data,
			      unsigned int len);

extern int crypto_sha512_finup(struct shash_desc *desc, const u8 *data,
			       unsigned int len, u8 *hash);
#endif
lue='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>Eric W. Biederman &lt;ebiederm@xmission.com&gt;</td><td class='right'>2016-06-10 12:21:40 -0500</td></tr>
<tr><th>committer</th><td>Eric W. Biederman &lt;ebiederm@xmission.com&gt;</td><td class='right'>2016-06-15 06:52:23 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=695e9df010e40f407f4830dc11d53dce957710ba'>695e9df010e40f407f4830dc11d53dce957710ba</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=695e9df010e40f407f4830dc11d53dce957710ba'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=695e9df010e40f407f4830dc11d53dce957710ba'>9f945a72c428a3fdfb66d999fed31d0b7374f12c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=d71ed6c930ac7d8f88f3cef6624a7e826392d61f'>d71ed6c930ac7d8f88f3cef6624a7e826392d61f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=695e9df010e40f407f4830dc11d53dce957710ba&amp;id2=d71ed6c930ac7d8f88f3cef6624a7e826392d61f'>diff</a>)</td></tr></table>
<div class='commit-subject'>mnt: Account for MS_RDONLY in fs_fully_visible</div><div class='commit-msg'>In rare cases it is possible for s_flags &amp; MS_RDONLY to be set but
MNT_READONLY to be clear.  This starting combination can cause
fs_fully_visible to fail to ensure that the new mount is readonly.
Therefore force MNT_LOCK_READONLY in the new mount if MS_RDONLY
is set on the source filesystem of the mount.

In general both MS_RDONLY and MNT_READONLY are set at the same for
mounts so I don't expect any programs to care.  Nor do I expect
MS_RDONLY to be set on proc or sysfs in the initial user namespace,
which further decreases the likelyhood of problems.

Which means this change should only affect system configurations by
paranoid sysadmins who should welcome the additional protection
as it keeps people from wriggling out of their policies.

Cc: stable@vger.kernel.org
Fixes: 8c6cf9cc829f ("mnt: Modify fs_fully_visible to deal with locked ro nodev and atime")
Signed-off-by: "Eric W. Biederman" &lt;ebiederm@xmission.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=695e9df010e40f407f4830dc11d53dce957710ba'>Diffstat</a></div><table summary='diffstat' class='diffstat'>