Revision f9ebd61855253078fe8b07bacaf516337f8078e8 authored by Anna Schumaker on 15 April 2015, 17:00:04 UTC, committed by Trond Myklebust on 23 April 2015, 19:16:13 UTC
The idmapper is completely internal to the NFS v4 module, so this macro will always evaluate to true. This patch also removes unnecessary includes of this file from the generic NFS client. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
1 parent 7c61f0d
rmd320.c
/*
* Cryptographic API.
*
* RIPEMD-320 - RACE Integrity Primitives Evaluation Message Digest.
*
* Based on the reference implementation by Antoon Bosselaers, ESAT-COSIC
*
* Copyright (c) 2008 Adrian-Ken Rueegsegger <ken@codelabs.ch>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
*/
#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/types.h>
#include <asm/byteorder.h>
#include "ripemd.h"
struct rmd320_ctx {
u64 byte_count;
u32 state[10];
__le32 buffer[16];
};
#define K1 RMD_K1
#define K2 RMD_K2
#define K3 RMD_K3
#define K4 RMD_K4
#define K5 RMD_K5
#define KK1 RMD_K6
#define KK2 RMD_K7
#define KK3 RMD_K8
#define KK4 RMD_K9
#define KK5 RMD_K1
#define F1(x, y, z) (x ^ y ^ z) /* XOR */
#define F2(x, y, z) (z ^ (x & (y ^ z))) /* x ? y : z */
#define F3(x, y, z) ((x | ~y) ^ z)
#define F4(x, y, z) (y ^ (z & (x ^ y))) /* z ? x : y */
#define F5(x, y, z) (x ^ (y | ~z))
#define ROUND(a, b, c, d, e, f, k, x, s) { \
(a) += f((b), (c), (d)) + le32_to_cpup(&(x)) + (k); \
(a) = rol32((a), (s)) + (e); \
(c) = rol32((c), 10); \
}
static void rmd320_transform(u32 *state, const __le32 *in)
{
u32 aa, bb, cc, dd, ee, aaa, bbb, ccc, ddd, eee, tmp;
/* Initialize left lane */
aa = state[0];
bb = state[1];
cc = state[2];
dd = state[3];
ee = state[4];
/* Initialize right lane */
aaa = state[5];
bbb = state[6];
ccc = state[7];
ddd = state[8];
eee = state[9];
/* round 1: left lane */
ROUND(aa, bb, cc, dd, ee, F1, K1, in[0], 11);
ROUND(ee, aa, bb, cc, dd, F1, K1, in[1], 14);
ROUND(dd, ee, aa, bb, cc, F1, K1, in[2], 15);
ROUND(cc, dd, ee, aa, bb, F1, K1, in[3], 12);
ROUND(bb, cc, dd, ee, aa, F1, K1, in[4], 5);
ROUND(aa, bb, cc, dd, ee, F1, K1, in[5], 8);
ROUND(ee, aa, bb, cc, dd, F1, K1, in[6], 7);
ROUND(dd, ee, aa, bb, cc, F1, K1, in[7], 9);
ROUND(cc, dd, ee, aa, bb, F1, K1, in[8], 11);
ROUND(bb, cc, dd, ee, aa, F1, K1, in[9], 13);
ROUND(aa, bb, cc, dd, ee, F1, K1, in[10], 14);
ROUND(ee, aa, bb, cc, dd, F1, K1, in[11], 15);
ROUND(dd, ee, aa, bb, cc, F1, K1, in[12], 6);
ROUND(cc, dd, ee, aa, bb, F1, K1, in[13], 7);
ROUND(bb, cc, dd, ee, aa, F1, K1, in[14], 9);
ROUND(aa, bb, cc, dd, ee, F1, K1, in[15], 8);
/* round 1: right lane */
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[5], 8);
ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[14], 9);
ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[7], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[0], 11);
ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[9], 13);
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[2], 15);
ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[11], 15);
ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[4], 5);
ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[13], 7);
ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[6], 7);
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[15], 8);
ROUND(eee, aaa, bbb, ccc, ddd, F5, KK1, in[8], 11);
ROUND(ddd, eee, aaa, bbb, ccc, F5, KK1, in[1], 14);
ROUND(ccc, ddd, eee, aaa, bbb, F5, KK1, in[10], 14);
ROUND(bbb, ccc, ddd, eee, aaa, F5, KK1, in[3], 12);
ROUND(aaa, bbb, ccc, ddd, eee, F5, KK1, in[12], 6);
/* Swap contents of "a" registers */
tmp = aa; aa = aaa; aaa = tmp;
/* round 2: left lane" */
ROUND(ee, aa, bb, cc, dd, F2, K2, in[7], 7);
ROUND(dd, ee, aa, bb, cc, F2, K2, in[4], 6);
ROUND(cc, dd, ee, aa, bb, F2, K2, in[13], 8);
ROUND(bb, cc, dd, ee, aa, F2, K2, in[1], 13);
ROUND(aa, bb, cc, dd, ee, F2, K2, in[10], 11);
ROUND(ee, aa, bb, cc, dd, F2, K2, in[6], 9);
ROUND(dd, ee, aa, bb, cc, F2, K2, in[15], 7);
ROUND(cc, dd, ee, aa, bb, F2, K2, in[3], 15);
ROUND(bb, cc, dd, ee, aa, F2, K2, in[12], 7);
ROUND(aa, bb, cc, dd, ee, F2, K2, in[0], 12);
ROUND(ee, aa, bb, cc, dd, F2, K2, in[9], 15);
ROUND(dd, ee, aa, bb, cc, F2, K2, in[5], 9);
ROUND(cc, dd, ee, aa, bb, F2, K2, in[2], 11);
ROUND(bb, cc, dd, ee, aa, F2, K2, in[14], 7);
ROUND(aa, bb, cc, dd, ee, F2, K2, in[11], 13);
ROUND(ee, aa, bb, cc, dd, F2, K2, in[8], 12);
/* round 2: right lane */
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[6], 9);
ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[11], 13);
ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[3], 15);
ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[7], 7);
ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[0], 12);
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[13], 8);
ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[5], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[10], 11);
ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[14], 7);
ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[15], 7);
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[8], 12);
ROUND(ddd, eee, aaa, bbb, ccc, F4, KK2, in[12], 7);
ROUND(ccc, ddd, eee, aaa, bbb, F4, KK2, in[4], 6);
ROUND(bbb, ccc, ddd, eee, aaa, F4, KK2, in[9], 15);
ROUND(aaa, bbb, ccc, ddd, eee, F4, KK2, in[1], 13);
ROUND(eee, aaa, bbb, ccc, ddd, F4, KK2, in[2], 11);
/* Swap contents of "b" registers */
tmp = bb; bb = bbb; bbb = tmp;
/* round 3: left lane" */
ROUND(dd, ee, aa, bb, cc, F3, K3, in[3], 11);
ROUND(cc, dd, ee, aa, bb, F3, K3, in[10], 13);
ROUND(bb, cc, dd, ee, aa, F3, K3, in[14], 6);
ROUND(aa, bb, cc, dd, ee, F3, K3, in[4], 7);
ROUND(ee, aa, bb, cc, dd, F3, K3, in[9], 14);
ROUND(dd, ee, aa, bb, cc, F3, K3, in[15], 9);
ROUND(cc, dd, ee, aa, bb, F3, K3, in[8], 13);
ROUND(bb, cc, dd, ee, aa, F3, K3, in[1], 15);
ROUND(aa, bb, cc, dd, ee, F3, K3, in[2], 14);
ROUND(ee, aa, bb, cc, dd, F3, K3, in[7], 8);
ROUND(dd, ee, aa, bb, cc, F3, K3, in[0], 13);
ROUND(cc, dd, ee, aa, bb, F3, K3, in[6], 6);
ROUND(bb, cc, dd, ee, aa, F3, K3, in[13], 5);
ROUND(aa, bb, cc, dd, ee, F3, K3, in[11], 12);
ROUND(ee, aa, bb, cc, dd, F3, K3, in[5], 7);
ROUND(dd, ee, aa, bb, cc, F3, K3, in[12], 5);
/* round 3: right lane */
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[15], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[5], 7);
ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[1], 15);
ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[3], 11);
ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[7], 8);
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[14], 6);
ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[6], 6);
ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[9], 14);
ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[11], 12);
ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[8], 13);
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[12], 5);
ROUND(ccc, ddd, eee, aaa, bbb, F3, KK3, in[2], 14);
ROUND(bbb, ccc, ddd, eee, aaa, F3, KK3, in[10], 13);
ROUND(aaa, bbb, ccc, ddd, eee, F3, KK3, in[0], 13);
ROUND(eee, aaa, bbb, ccc, ddd, F3, KK3, in[4], 7);
ROUND(ddd, eee, aaa, bbb, ccc, F3, KK3, in[13], 5);
/* Swap contents of "c" registers */
tmp = cc; cc = ccc; ccc = tmp;
/* round 4: left lane" */
ROUND(cc, dd, ee, aa, bb, F4, K4, in[1], 11);
ROUND(bb, cc, dd, ee, aa, F4, K4, in[9], 12);
ROUND(aa, bb, cc, dd, ee, F4, K4, in[11], 14);
ROUND(ee, aa, bb, cc, dd, F4, K4, in[10], 15);
ROUND(dd, ee, aa, bb, cc, F4, K4, in[0], 14);
ROUND(cc, dd, ee, aa, bb, F4, K4, in[8], 15);
ROUND(bb, cc, dd, ee, aa, F4, K4, in[12], 9);
ROUND(aa, bb, cc, dd, ee, F4, K4, in[4], 8);
ROUND(ee, aa, bb, cc, dd, F4, K4, in[13], 9);
ROUND(dd, ee, aa, bb, cc, F4, K4, in[3], 14);
ROUND(cc, dd, ee, aa, bb, F4, K4, in[7], 5);
ROUND(bb, cc, dd, ee, aa, F4, K4, in[15], 6);
ROUND(aa, bb, cc, dd, ee, F4, K4, in[14], 8);
ROUND(ee, aa, bb, cc, dd, F4, K4, in[5], 6);
ROUND(dd, ee, aa, bb, cc, F4, K4, in[6], 5);
ROUND(cc, dd, ee, aa, bb, F4, K4, in[2], 12);
/* round 4: right lane */
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[8], 15);
ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[6], 5);
ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[4], 8);
ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[1], 11);
ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[3], 14);
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[11], 14);
ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[15], 6);
ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[0], 14);
ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[5], 6);
ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[12], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[2], 12);
ROUND(bbb, ccc, ddd, eee, aaa, F2, KK4, in[13], 9);
ROUND(aaa, bbb, ccc, ddd, eee, F2, KK4, in[9], 12);
ROUND(eee, aaa, bbb, ccc, ddd, F2, KK4, in[7], 5);
ROUND(ddd, eee, aaa, bbb, ccc, F2, KK4, in[10], 15);
ROUND(ccc, ddd, eee, aaa, bbb, F2, KK4, in[14], 8);
/* Swap contents of "d" registers */
tmp = dd; dd = ddd; ddd = tmp;
/* round 5: left lane" */
ROUND(bb, cc, dd, ee, aa, F5, K5, in[4], 9);
ROUND(aa, bb, cc, dd, ee, F5, K5, in[0], 15);
ROUND(ee, aa, bb, cc, dd, F5, K5, in[5], 5);
ROUND(dd, ee, aa, bb, cc, F5, K5, in[9], 11);
ROUND(cc, dd, ee, aa, bb, F5, K5, in[7], 6);
ROUND(bb, cc, dd, ee, aa, F5, K5, in[12], 8);
ROUND(aa, bb, cc, dd, ee, F5, K5, in[2], 13);
ROUND(ee, aa, bb, cc, dd, F5, K5, in[10], 12);
ROUND(dd, ee, aa, bb, cc, F5, K5, in[14], 5);
ROUND(cc, dd, ee, aa, bb, F5, K5, in[1], 12);
ROUND(bb, cc, dd, ee, aa, F5, K5, in[3], 13);
ROUND(aa, bb, cc, dd, ee, F5, K5, in[8], 14);
ROUND(ee, aa, bb, cc, dd, F5, K5, in[11], 11);
ROUND(dd, ee, aa, bb, cc, F5, K5, in[6], 8);
ROUND(cc, dd, ee, aa, bb, F5, K5, in[15], 5);
ROUND(bb, cc, dd, ee, aa, F5, K5, in[13], 6);
/* round 5: right lane */
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[12], 8);
ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[15], 5);
ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[10], 12);
ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[4], 9);
ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[1], 12);
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[5], 5);
ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[8], 14);
ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[7], 6);
ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[6], 8);
ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[2], 13);
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[13], 6);
ROUND(aaa, bbb, ccc, ddd, eee, F1, KK5, in[14], 5);
ROUND(eee, aaa, bbb, ccc, ddd, F1, KK5, in[0], 15);
ROUND(ddd, eee, aaa, bbb, ccc, F1, KK5, in[3], 13);
ROUND(ccc, ddd, eee, aaa, bbb, F1, KK5, in[9], 11);
ROUND(bbb, ccc, ddd, eee, aaa, F1, KK5, in[11], 11);
/* Swap contents of "e" registers */
tmp = ee; ee = eee; eee = tmp;
/* combine results */
state[0] += aa;
state[1] += bb;
state[2] += cc;
state[3] += dd;
state[4] += ee;
state[5] += aaa;
state[6] += bbb;
state[7] += ccc;
state[8] += ddd;
state[9] += eee;
return;
}
static int rmd320_init(struct shash_desc *desc)
{
struct rmd320_ctx *rctx = shash_desc_ctx(desc);
rctx->byte_count = 0;
rctx->state[0] = RMD_H0;
rctx->state[1] = RMD_H1;
rctx->state[2] = RMD_H2;
rctx->state[3] = RMD_H3;
rctx->state[4] = RMD_H4;
rctx->state[5] = RMD_H5;
rctx->state[6] = RMD_H6;
rctx->state[7] = RMD_H7;
rctx->state[8] = RMD_H8;
rctx->state[9] = RMD_H9;
memset(rctx->buffer, 0, sizeof(rctx->buffer));
return 0;
}
static int rmd320_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
struct rmd320_ctx *rctx = shash_desc_ctx(desc);
const u32 avail = sizeof(rctx->buffer) - (rctx->byte_count & 0x3f);
rctx->byte_count += len;
/* Enough space in buffer? If so copy and we're done */
if (avail > len) {
memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail),
data, len);
goto out;
}
memcpy((char *)rctx->buffer + (sizeof(rctx->buffer) - avail),
data, avail);
rmd320_transform(rctx->state, rctx->buffer);
data += avail;
len -= avail;
while (len >= sizeof(rctx->buffer)) {
memcpy(rctx->buffer, data, sizeof(rctx->buffer));
rmd320_transform(rctx->state, rctx->buffer);
data += sizeof(rctx->buffer);
len -= sizeof(rctx->buffer);
}
memcpy(rctx->buffer, data, len);
out:
return 0;
}
/* Add padding and return the message digest. */
static int rmd320_final(struct shash_desc *desc, u8 *out)
{
struct rmd320_ctx *rctx = shash_desc_ctx(desc);
u32 i, index, padlen;
__le64 bits;
__le32 *dst = (__le32 *)out;
static const u8 padding[64] = { 0x80, };
bits = cpu_to_le64(rctx->byte_count << 3);
/* Pad out to 56 mod 64 */
index = rctx->byte_count & 0x3f;
padlen = (index < 56) ? (56 - index) : ((64+56) - index);
rmd320_update(desc, padding, padlen);
/* Append length */
rmd320_update(desc, (const u8 *)&bits, sizeof(bits));
/* Store state in digest */
for (i = 0; i < 10; i++)
dst[i] = cpu_to_le32p(&rctx->state[i]);
/* Wipe context */
memset(rctx, 0, sizeof(*rctx));
return 0;
}
static struct shash_alg alg = {
.digestsize = RMD320_DIGEST_SIZE,
.init = rmd320_init,
.update = rmd320_update,
.final = rmd320_final,
.descsize = sizeof(struct rmd320_ctx),
.base = {
.cra_name = "rmd320",
.cra_flags = CRYPTO_ALG_TYPE_SHASH,
.cra_blocksize = RMD320_BLOCK_SIZE,
.cra_module = THIS_MODULE,
}
};
static int __init rmd320_mod_init(void)
{
return crypto_register_shash(&alg);
}
static void __exit rmd320_mod_fini(void)
{
crypto_unregister_shash(&alg);
}
module_init(rmd320_mod_init);
module_exit(rmd320_mod_fini);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Adrian-Ken Rueegsegger <ken@codelabs.ch>");
MODULE_DESCRIPTION("RIPEMD-320 Message Digest");
MODULE_ALIAS_CRYPTO("rmd320");
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