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Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (31 commits)
  crypto: aes_generic - Fix checkpatch errors
  crypto: fcrypt - Fix checkpatch errors
  crypto: ecb - Fix checkpatch errors
  crypto: des_generic - Fix checkpatch errors
  crypto: deflate - Fix checkpatch errors
  crypto: crypto_null - Fix checkpatch errors
  crypto: cipher - Fix checkpatch errors
  crypto: crc32 - Fix checkpatch errors
  crypto: compress - Fix checkpatch errors
  crypto: cast6 - Fix checkpatch errors
  crypto: cast5 - Fix checkpatch errors
  crypto: camellia - Fix checkpatch errors
  crypto: authenc - Fix checkpatch errors
  crypto: api - Fix checkpatch errors
  crypto: anubis - Fix checkpatch errors
  crypto: algapi - Fix checkpatch errors
  crypto: blowfish - Fix checkpatch errors
  crypto: aead - Fix checkpatch errors
  crypto: ablkcipher - Fix checkpatch errors
  crypto: pcrypt - call the complete function on error
  ...
This commit is contained in:
Linus Torvalds 2010-02-26 16:50:02 -08:00
commit 37d4008484
41 changed files with 2293 additions and 466 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
arch/arm/mach-nomadik/cpu-8815.c
View File

@ -86,11 +86,19 @@ static struct amba_device cpu8815_amba_gpio[] = {
},
};
static struct amba_device cpu8815_amba_rng = {
.dev = {
.init_name = "rng",
},
__MEM_4K_RESOURCE(NOMADIK_RNG_BASE),
};
static struct amba_device *amba_devs[] __initdata = {
cpu8815_amba_gpio + 0,
cpu8815_amba_gpio + 1,
cpu8815_amba_gpio + 2,
cpu8815_amba_gpio + 3,
&cpu8815_amba_rng
};
static int __init cpu8815_init(void)

6
arch/s390/crypto/aes_s390.c
View File

@ -78,14 +78,14 @@ static int setkey_fallback_cip(struct crypto_tfm *tfm, const u8 *in_key,
struct s390_aes_ctx *sctx = crypto_tfm_ctx(tfm);
int ret;
sctx->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
sctx->fallback.blk->base.crt_flags |= (tfm->crt_flags &
sctx->fallback.cip->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
sctx->fallback.cip->base.crt_flags |= (tfm->crt_flags &
CRYPTO_TFM_REQ_MASK);
ret = crypto_cipher_setkey(sctx->fallback.cip, in_key, key_len);
if (ret) {
tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
tfm->crt_flags |= (sctx->fallback.blk->base.crt_flags &
tfm->crt_flags |= (sctx->fallback.cip->base.crt_flags &
CRYPTO_TFM_RES_MASK);
}
return ret;

10
crypto/Kconfig
View File

@ -114,6 +114,16 @@ config CRYPTO_NULL
help
These are 'Null' algorithms, used by IPsec, which do nothing.
config CRYPTO_PCRYPT
tristate "Parallel crypto engine (EXPERIMENTAL)"
depends on SMP && EXPERIMENTAL
select PADATA
select CRYPTO_MANAGER
select CRYPTO_AEAD
help
This converts an arbitrary crypto algorithm into a parallel
algorithm that executes in kernel threads.
config CRYPTO_WORKQUEUE
tristate

1
crypto/Makefile
View File

@ -56,6 +56,7 @@ obj-$(CONFIG_CRYPTO_XTS) += xts.o
obj-$(CONFIG_CRYPTO_CTR) += ctr.o
obj-$(CONFIG_CRYPTO_GCM) += gcm.o
obj-$(CONFIG_CRYPTO_CCM) += ccm.o
obj-$(CONFIG_CRYPTO_PCRYPT) += pcrypt.o
obj-$(CONFIG_CRYPTO_CRYPTD) += cryptd.o
obj-$(CONFIG_CRYPTO_DES) += des_generic.o
obj-$(CONFIG_CRYPTO_FCRYPT) += fcrypt.o

18
crypto/anubis.c
View File

@ -469,8 +469,7 @@ static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key,
u32 kappa[ANUBIS_MAX_N];
u32 inter[ANUBIS_MAX_N];
switch (key_len)
{
switch (key_len) {
case 16: case 20: case 24: case 28:
case 32: case 36: case 40:
break;
@ -530,24 +529,25 @@ static int anubis_setkey(struct crypto_tfm *tfm, const u8 *in_key,
/*
* compute kappa^{r+1} from kappa^r:
*/
if (r == R) {
if (r == R)
break;
}
for (i = 0; i < N; i++) {
int j = i;
inter[i] = T0[(kappa[j--] >> 24) ];
if (j < 0) j = N - 1;
if (j < 0)
j = N - 1;
inter[i] ^= T1[(kappa[j--] >> 16) & 0xff];
if (j < 0) j = N - 1;
if (j < 0)
j = N - 1;
inter[i] ^= T2[(kappa[j--] >> 8) & 0xff];
if (j < 0) j = N - 1;
if (j < 0)
j = N - 1;
inter[i] ^= T3[(kappa[j ] ) & 0xff];
}
kappa[0] = inter[0] ^ rc[r];
for (i = 1; i < N; i++) {
for (i = 1; i < N; i++)
kappa[i] = inter[i];
}
}
/*
* generate inverse key schedule: K'^0 = K^R, K'^R =

1
crypto/api.c
View File

@ -318,7 +318,6 @@ static void crypto_exit_ops(struct crypto_tfm *tfm)
default:
BUG();
}
}

14
crypto/cast6.c
View File

@ -369,7 +369,8 @@ static const u8 Tr[4][8] = {
};
/* forward octave */
static void W(u32 *key, unsigned int i) {
static void W(u32 *key, unsigned int i)
{
u32 I;
key[6] ^= F1(key[7], Tr[i % 4][0], Tm[i][0]);
key[5] ^= F2(key[6], Tr[i % 4][1], Tm[i][1]);
@ -407,8 +408,6 @@ static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key,
key[6] = be32_to_cpu(p_key[6]); /* G */
key[7] = be32_to_cpu(p_key[7]); /* H */
for (i = 0; i < 12; i++) {
W(key, 2 * i);
W(key, 2 * i + 1);
@ -428,7 +427,8 @@ static int cast6_setkey(struct crypto_tfm *tfm, const u8 *in_key,
}
/*forward quad round*/
static void Q (u32 * block, u8 * Kr, u32 * Km) {
static void Q(u32 *block, u8 *Kr, u32 *Km)
{
u32 I;
block[2] ^= F1(block[3], Kr[0], Km[0]);
block[1] ^= F2(block[2], Kr[1], Km[1]);
@ -437,7 +437,8 @@ static void Q (u32 * block, u8 * Kr, u32 * Km) {
}
/*reverse quad round*/
static void QBAR (u32 * block, u8 * Kr, u32 * Km) {
static void QBAR(u32 *block, u8 *Kr, u32 *Km)
{
u32 I;
block[3] ^= F1(block[0], Kr[3], Km[3]);
block[0] ^= F3(block[1], Kr[2], Km[2]);
@ -478,7 +479,8 @@ static void cast6_encrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf)
dst[3] = cpu_to_be32(block[3]);
}
static void cast6_decrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf) {
static void cast6_decrypt(struct crypto_tfm *tfm, u8 *outbuf, const u8 *inbuf)
{
struct cast6_ctx *c = crypto_tfm_ctx(tfm);
const __be32 *src = (const __be32 *)inbuf;
__be32 *dst = (__be32 *)outbuf;

3
crypto/des_generic.c
View File

@ -869,8 +869,7 @@ static int des3_ede_setkey(struct crypto_tfm *tfm, const u8 *key,
if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
!((K[2] ^ K[4]) | (K[3] ^ K[5]))) &&
(*flags & CRYPTO_TFM_REQ_WEAK_KEY))
{
(*flags & CRYPTO_TFM_REQ_WEAK_KEY)) {
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
return -EINVAL;
}

287
crypto/gcm.c
View File

@ -37,6 +37,19 @@ struct crypto_rfc4106_ctx {
u8 nonce[4];
};
struct crypto_rfc4543_ctx {
struct crypto_aead *child;
u8 nonce[4];
};
struct crypto_rfc4543_req_ctx {
u8 auth_tag[16];
struct scatterlist cipher[1];
struct scatterlist payload[2];
struct scatterlist assoc[2];
struct aead_request subreq;
};
struct crypto_gcm_ghash_ctx {
unsigned int cryptlen;
struct scatterlist *src;
@ -1047,6 +1060,272 @@ static struct crypto_template crypto_rfc4106_tmpl = {
.module = THIS_MODULE,
};
static inline struct crypto_rfc4543_req_ctx *crypto_rfc4543_reqctx(
struct aead_request *req)
{
unsigned long align = crypto_aead_alignmask(crypto_aead_reqtfm(req));
return (void *)PTR_ALIGN((u8 *)aead_request_ctx(req), align + 1);
}
static int crypto_rfc4543_setkey(struct crypto_aead *parent, const u8 *key,
unsigned int keylen)
{
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(parent);
struct crypto_aead *child = ctx->child;
int err;
if (keylen < 4)
return -EINVAL;
keylen -= 4;
memcpy(ctx->nonce, key + keylen, 4);
crypto_aead_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_aead_set_flags(child, crypto_aead_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_aead_setkey(child, key, keylen);
crypto_aead_set_flags(parent, crypto_aead_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static int crypto_rfc4543_setauthsize(struct crypto_aead *parent,
unsigned int authsize)
{
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(parent);
if (authsize != 16)
return -EINVAL;
return crypto_aead_setauthsize(ctx->child, authsize);
}
/* this is the same as crypto_authenc_chain */
static void crypto_rfc4543_chain(struct scatterlist *head,
struct scatterlist *sg, int chain)
{
if (chain) {
head->length += sg->length;
sg = scatterwalk_sg_next(sg);
}
if (sg)
scatterwalk_sg_chain(head, 2, sg);
else
sg_mark_end(head);
}
static struct aead_request *crypto_rfc4543_crypt(struct aead_request *req,
int enc)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_rfc4543_ctx *ctx = crypto_aead_ctx(aead);
struct crypto_rfc4543_req_ctx *rctx = crypto_rfc4543_reqctx(req);
struct aead_request *subreq = &rctx->subreq;
struct scatterlist *dst = req->dst;
struct scatterlist *cipher = rctx->cipher;
struct scatterlist *payload = rctx->payload;
struct scatterlist *assoc = rctx->assoc;
unsigned int authsize = crypto_aead_authsize(aead);
unsigned int assoclen = req->assoclen;
struct page *dstp;
u8 *vdst;
u8 *iv = PTR_ALIGN((u8 *)(rctx + 1) + crypto_aead_reqsize(ctx->child),
crypto_aead_alignmask(ctx->child) + 1);
memcpy(iv, ctx->nonce, 4);
memcpy(iv + 4, req->iv, 8);
/* construct cipher/plaintext */
if (enc)
memset(rctx->auth_tag, 0, authsize);
else
scatterwalk_map_and_copy(rctx->auth_tag, dst,
req->cryptlen - authsize,
authsize, 0);
sg_init_one(cipher, rctx->auth_tag, authsize);
/* construct the aad */
dstp = sg_page(dst);
vdst = PageHighMem(dstp) ? NULL : page_address(dstp) + dst->offset;
sg_init_table(payload, 2);
sg_set_buf(payload, req->iv, 8);
crypto_rfc4543_chain(payload, dst, vdst == req->iv + 8);
assoclen += 8 + req->cryptlen - (enc ? 0 : authsize);
sg_init_table(assoc, 2);
sg_set_page(assoc, sg_page(req->assoc), req->assoc->length,
req->assoc->offset);
crypto_rfc4543_chain(assoc, payload, 0);
aead_request_set_tfm(subreq, ctx->child);
aead_request_set_callback(subreq, req->base.flags, req->base.complete,
req->base.data);
aead_request_set_crypt(subreq, cipher, cipher, enc ? 0 : authsize, iv);
aead_request_set_assoc(subreq, assoc, assoclen);
return subreq;
}
static int crypto_rfc4543_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct crypto_rfc4543_req_ctx *rctx = crypto_rfc4543_reqctx(req);
struct aead_request *subreq;
int err;
subreq = crypto_rfc4543_crypt(req, 1);
err = crypto_aead_encrypt(subreq);
if (err)
return err;
scatterwalk_map_and_copy(rctx->auth_tag, req->dst, req->cryptlen,
crypto_aead_authsize(aead), 1);
return 0;
}
static int crypto_rfc4543_decrypt(struct aead_request *req)
{
req = crypto_rfc4543_crypt(req, 0);
return crypto_aead_decrypt(req);
}
static int crypto_rfc4543_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = (void *)tfm->__crt_alg;
struct crypto_aead_spawn *spawn = crypto_instance_ctx(inst);
struct crypto_rfc4543_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_aead *aead;
unsigned long align;
aead = crypto_spawn_aead(spawn);
if (IS_ERR(aead))
return PTR_ERR(aead);
ctx->child = aead;
align = crypto_aead_alignmask(aead);
align &= ~(crypto_tfm_ctx_alignment() - 1);
tfm->crt_aead.reqsize = sizeof(struct crypto_rfc4543_req_ctx) +
ALIGN(crypto_aead_reqsize(aead),
crypto_tfm_ctx_alignment()) +
align + 16;
return 0;
}
static void crypto_rfc4543_exit_tfm(struct crypto_tfm *tfm)
{
struct crypto_rfc4543_ctx *ctx = crypto_tfm_ctx(tfm);
crypto_free_aead(ctx->child);
}
static struct crypto_instance *crypto_rfc4543_alloc(struct rtattr **tb)
{
struct crypto_attr_type *algt;
struct crypto_instance *inst;
struct crypto_aead_spawn *spawn;
struct crypto_alg *alg;
const char *ccm_name;
int err;
algt = crypto_get_attr_type(tb);
err = PTR_ERR(algt);
if (IS_ERR(algt))
return ERR_PTR(err);
if ((algt->type ^ CRYPTO_ALG_TYPE_AEAD) & algt->mask)
return ERR_PTR(-EINVAL);
ccm_name = crypto_attr_alg_name(tb[1]);
err = PTR_ERR(ccm_name);
if (IS_ERR(ccm_name))
return ERR_PTR(err);
inst = kzalloc(sizeof(*inst) + sizeof(*spawn), GFP_KERNEL);
if (!inst)
return ERR_PTR(-ENOMEM);
spawn = crypto_instance_ctx(inst);
crypto_set_aead_spawn(spawn, inst);
err = crypto_grab_aead(spawn, ccm_name, 0,
crypto_requires_sync(algt->type, algt->mask));
if (err)
goto out_free_inst;
alg = crypto_aead_spawn_alg(spawn);
err = -EINVAL;
/* We only support 16-byte blocks. */
if (alg->cra_aead.ivsize != 16)
goto out_drop_alg;
/* Not a stream cipher? */
if (alg->cra_blocksize != 1)
goto out_drop_alg;
err = -ENAMETOOLONG;
if (snprintf(inst->alg.cra_name, CRYPTO_MAX_ALG_NAME,
"rfc4543(%s)", alg->cra_name) >= CRYPTO_MAX_ALG_NAME ||
snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"rfc4543(%s)", alg->cra_driver_name) >=
CRYPTO_MAX_ALG_NAME)
goto out_drop_alg;
inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD;
inst->alg.cra_flags |= alg->cra_flags & CRYPTO_ALG_ASYNC;
inst->alg.cra_priority = alg->cra_priority;
inst->alg.cra_blocksize = 1;
inst->alg.cra_alignmask = alg->cra_alignmask;
inst->alg.cra_type = &crypto_nivaead_type;
inst->alg.cra_aead.ivsize = 8;
inst->alg.cra_aead.maxauthsize = 16;
inst->alg.cra_ctxsize = sizeof(struct crypto_rfc4543_ctx);
inst->alg.cra_init = crypto_rfc4543_init_tfm;
inst->alg.cra_exit = crypto_rfc4543_exit_tfm;
inst->alg.cra_aead.setkey = crypto_rfc4543_setkey;
inst->alg.cra_aead.setauthsize = crypto_rfc4543_setauthsize;
inst->alg.cra_aead.encrypt = crypto_rfc4543_encrypt;
inst->alg.cra_aead.decrypt = crypto_rfc4543_decrypt;
inst->alg.cra_aead.geniv = "seqiv";
out:
return inst;
out_drop_alg:
crypto_drop_aead(spawn);
out_free_inst:
kfree(inst);
inst = ERR_PTR(err);
goto out;
}
static void crypto_rfc4543_free(struct crypto_instance *inst)
{
crypto_drop_spawn(crypto_instance_ctx(inst));
kfree(inst);
}
static struct crypto_template crypto_rfc4543_tmpl = {
.name = "rfc4543",
.alloc = crypto_rfc4543_alloc,
.free = crypto_rfc4543_free,
.module = THIS_MODULE,
};
static int __init crypto_gcm_module_init(void)
{
int err;
@ -1067,8 +1346,14 @@ static int __init crypto_gcm_module_init(void)
if (err)
goto out_undo_gcm;
err = crypto_register_template(&crypto_rfc4543_tmpl);
if (err)
goto out_undo_rfc4106;
return 0;
out_undo_rfc4106:
crypto_unregister_template(&crypto_rfc4106_tmpl);
out_undo_gcm:
crypto_unregister_template(&crypto_gcm_tmpl);
out_undo_base:
@ -1081,6 +1366,7 @@ out:
static void __exit crypto_gcm_module_exit(void)
{
kfree(gcm_zeroes);
crypto_unregister_template(&crypto_rfc4543_tmpl);
crypto_unregister_template(&crypto_rfc4106_tmpl);
crypto_unregister_template(&crypto_gcm_tmpl);
crypto_unregister_template(&crypto_gcm_base_tmpl);
@ -1094,3 +1380,4 @@ MODULE_DESCRIPTION("Galois/Counter Mode");
MODULE_AUTHOR("Mikko Herranen <mh1@iki.fi>");
MODULE_ALIAS("gcm_base");
MODULE_ALIAS("rfc4106");
MODULE_ALIAS("rfc4543");

40
crypto/md5.c
View File

@ -16,17 +16,13 @@
*
*/
#include <crypto/internal/hash.h>
#include <crypto/md5.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/types.h>
#include <asm/byteorder.h>
#define MD5_DIGEST_SIZE 16
#define MD5_HMAC_BLOCK_SIZE 64
#define MD5_BLOCK_WORDS 16
#define MD5_HASH_WORDS 4
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
@ -35,12 +31,6 @@
#define MD5STEP(f, w, x, y, z, in, s) \
(w += f(x, y, z) + in, w = (w<<s | w>>(32-s)) + x)
struct md5_ctx {
u32 hash[MD5_HASH_WORDS];
u32 block[MD5_BLOCK_WORDS];
u64 byte_count;
};
static void md5_transform(u32 *hash, u32 const *in)
{
u32 a, b, c, d;
@ -141,7 +131,7 @@ static inline void cpu_to_le32_array(u32 *buf, unsigned int words)
}
}
static inline void md5_transform_helper(struct md5_ctx *ctx)
static inline void md5_transform_helper(struct md5_state *ctx)
{
le32_to_cpu_array(ctx->block, sizeof(ctx->block) / sizeof(u32));
md5_transform(ctx->hash, ctx->block);
@ -149,7 +139,7 @@ static inline void md5_transform_helper(struct md5_ctx *ctx)
static int md5_init(struct shash_desc *desc)
{
struct md5_ctx *mctx = shash_desc_ctx(desc);
struct md5_state *mctx = shash_desc_ctx(desc);
mctx->hash[0] = 0x67452301;
mctx->hash[1] = 0xefcdab89;
@ -162,7 +152,7 @@ static int md5_init(struct shash_desc *desc)
static int md5_update(struct shash_desc *desc, const u8 *data, unsigned int len)
{
struct md5_ctx *mctx = shash_desc_ctx(desc);
struct md5_state *mctx = shash_desc_ctx(desc);
const u32 avail = sizeof(mctx->block) - (mctx->byte_count & 0x3f);
mctx->byte_count += len;
@ -194,7 +184,7 @@ static int md5_update(struct shash_desc *desc, const u8 *data, unsigned int len)
static int md5_final(struct shash_desc *desc, u8 *out)
{
struct md5_ctx *mctx = shash_desc_ctx(desc);
struct md5_state *mctx = shash_desc_ctx(desc);
const unsigned int offset = mctx->byte_count & 0x3f;
char *p = (char *)mctx->block + offset;
int padding = 56 - (offset + 1);
@ -220,12 +210,30 @@ static int md5_final(struct shash_desc *desc, u8 *out)
return 0;
}
static int md5_export(struct shash_desc *desc, void *out)
{
struct md5_state *ctx = shash_desc_ctx(desc);
memcpy(out, ctx, sizeof(*ctx));
return 0;
}
static int md5_import(struct shash_desc *desc, const void *in)
{
struct md5_state *ctx = shash_desc_ctx(desc);
memcpy(ctx, in, sizeof(*ctx));
return 0;
}
static struct shash_alg alg = {
.digestsize = MD5_DIGEST_SIZE,
.init = md5_init,
.update = md5_update,
.final = md5_final,
.descsize = sizeof(struct md5_ctx),
.export = md5_export,
.import = md5_import,
.descsize = sizeof(struct md5_state),
.base = {
.cra_name = "md5",
.cra_flags = CRYPTO_ALG_TYPE_SHASH,

445
crypto/pcrypt.c Normal file
View File

@ -0,0 +1,445 @@
/*
* pcrypt - Parallel crypto wrapper.
*
* Copyright (C) 2009 secunet Security Networks AG
* Copyright (C) 2009 Steffen Klassert <steffen.klassert@secunet.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <crypto/algapi.h>
#include <crypto/internal/aead.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <crypto/pcrypt.h>
static struct padata_instance *pcrypt_enc_padata;
static struct padata_instance *pcrypt_dec_padata;
static struct workqueue_struct *encwq;
static struct workqueue_struct *decwq;
struct pcrypt_instance_ctx {
struct crypto_spawn spawn;
unsigned int tfm_count;
};
struct pcrypt_aead_ctx {
struct crypto_aead *child;
unsigned int cb_cpu;
};
static int pcrypt_do_parallel(struct padata_priv *padata, unsigned int *cb_cpu,
struct padata_instance *pinst)
{
unsigned int cpu_index, cpu, i;
cpu = *cb_cpu;
if (cpumask_test_cpu(cpu, cpu_active_mask))
goto out;
cpu_index = cpu % cpumask_weight(cpu_active_mask);
cpu = cpumask_first(cpu_active_mask);
for (i = 0; i < cpu_index; i++)
cpu = cpumask_next(cpu, cpu_active_mask);
*cb_cpu = cpu;
out:
return padata_do_parallel(pinst, padata, cpu);
}
static int pcrypt_aead_setkey(struct crypto_aead *parent,
const u8 *key, unsigned int keylen)
{
struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent);
return crypto_aead_setkey(ctx->child, key, keylen);
}
static int pcrypt_aead_setauthsize(struct crypto_aead *parent,
unsigned int authsize)
{
struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(parent);
return crypto_aead_setauthsize(ctx->child, authsize);
}
static void pcrypt_aead_serial(struct padata_priv *padata)
{
struct pcrypt_request *preq = pcrypt_padata_request(padata);
struct aead_request *req = pcrypt_request_ctx(preq);
aead_request_complete(req->base.data, padata->info);
}
static void pcrypt_aead_giv_serial(struct padata_priv *padata)
{
struct pcrypt_request *preq = pcrypt_padata_request(padata);
struct aead_givcrypt_request *req = pcrypt_request_ctx(preq);
aead_request_complete(req->areq.base.data, padata->info);
}
static void pcrypt_aead_done(struct crypto_async_request *areq, int err)
{
struct aead_request *req = areq->data;
struct pcrypt_request *preq = aead_request_ctx(req);
struct padata_priv *padata = pcrypt_request_padata(preq);
padata->info = err;
req->base.flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
padata_do_serial(padata);
}
static void pcrypt_aead_enc(struct padata_priv *padata)
{
struct pcrypt_request *preq = pcrypt_padata_request(padata);
struct aead_request *req = pcrypt_request_ctx(preq);
padata->info = crypto_aead_encrypt(req);
if (padata->info == -EINPROGRESS)
return;
padata_do_serial(padata);
}
static int pcrypt_aead_encrypt(struct aead_request *req)
{
int err;
struct pcrypt_request *preq = aead_request_ctx(req);
struct aead_request *creq = pcrypt_request_ctx(preq);
struct padata_priv *padata = pcrypt_request_padata(preq);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
u32 flags = aead_request_flags(req);
memset(padata, 0, sizeof(struct padata_priv));
padata->parallel = pcrypt_aead_enc;
padata->serial = pcrypt_aead_serial;
aead_request_set_tfm(creq, ctx->child);
aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
pcrypt_aead_done, req);
aead_request_set_crypt(creq, req->src, req->dst,
req->cryptlen, req->iv);
aead_request_set_assoc(creq, req->assoc, req->assoclen);
err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_enc_padata);
if (err)
return err;
else
err = crypto_aead_encrypt(creq);
return err;
}
static void pcrypt_aead_dec(struct padata_priv *padata)
{
struct pcrypt_request *preq = pcrypt_padata_request(padata);
struct aead_request *req = pcrypt_request_ctx(preq);
padata->info = crypto_aead_decrypt(req);
if (padata->info == -EINPROGRESS)
return;
padata_do_serial(padata);
}
static int pcrypt_aead_decrypt(struct aead_request *req)
{
int err;
struct pcrypt_request *preq = aead_request_ctx(req);
struct aead_request *creq = pcrypt_request_ctx(preq);
struct padata_priv *padata = pcrypt_request_padata(preq);
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
u32 flags = aead_request_flags(req);
memset(padata, 0, sizeof(struct padata_priv));
padata->parallel = pcrypt_aead_dec;
padata->serial = pcrypt_aead_serial;
aead_request_set_tfm(creq, ctx->child);
aead_request_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
pcrypt_aead_done, req);
aead_request_set_crypt(creq, req->src, req->dst,
req->cryptlen, req->iv);
aead_request_set_assoc(creq, req->assoc, req->assoclen);
err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_dec_padata);
if (err)
return err;
else
err = crypto_aead_decrypt(creq);
return err;
}
static void pcrypt_aead_givenc(struct padata_priv *padata)
{
struct pcrypt_request *preq = pcrypt_padata_request(padata);
struct aead_givcrypt_request *req = pcrypt_request_ctx(preq);
padata->info = crypto_aead_givencrypt(req);
if (padata->info == -EINPROGRESS)
return;
padata_do_serial(padata);
}
static int pcrypt_aead_givencrypt(struct aead_givcrypt_request *req)
{
int err;
struct aead_request *areq = &req->areq;
struct pcrypt_request *preq = aead_request_ctx(areq);
struct aead_givcrypt_request *creq = pcrypt_request_ctx(preq);
struct padata_priv *padata = pcrypt_request_padata(preq);
struct crypto_aead *aead = aead_givcrypt_reqtfm(req);
struct pcrypt_aead_ctx *ctx = crypto_aead_ctx(aead);
u32 flags = aead_request_flags(areq);
memset(padata, 0, sizeof(struct padata_priv));
padata->parallel = pcrypt_aead_givenc;
padata->serial = pcrypt_aead_giv_serial;
aead_givcrypt_set_tfm(creq, ctx->child);
aead_givcrypt_set_callback(creq, flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
pcrypt_aead_done, areq);
aead_givcrypt_set_crypt(creq, areq->src, areq->dst,
areq->cryptlen, areq->iv);
aead_givcrypt_set_assoc(creq, areq->assoc, areq->assoclen);
aead_givcrypt_set_giv(creq, req->giv, req->seq);
err = pcrypt_do_parallel(padata, &ctx->cb_cpu, pcrypt_enc_padata);
if (err)
return err;
else
err = crypto_aead_givencrypt(creq);
return err;
}
static int pcrypt_aead_init_tfm(struct crypto_tfm *tfm)
{
int cpu, cpu_index;
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct pcrypt_instance_ctx *ictx = crypto_instance_ctx(inst);
struct pcrypt_aead_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_aead *cipher;
ictx->tfm_count++;
cpu_index = ictx->tfm_count % cpumask_weight(cpu_active_mask);
ctx->cb_cpu = cpumask_first(cpu_active_mask);
for (cpu = 0; cpu < cpu_index; cpu++)
ctx->cb_cpu = cpumask_next(ctx->cb_cpu, cpu_active_mask);
cipher = crypto_spawn_aead(crypto_instance_ctx(inst));
if (IS_ERR(cipher))
return PTR_ERR(cipher);
ctx->child = cipher;
tfm->crt_aead.reqsize = sizeof(struct pcrypt_request)
+ sizeof(struct aead_givcrypt_request)
+ crypto_aead_reqsize(cipher);
return 0;
}
static void pcrypt_aead_exit_tfm(struct crypto_tfm *tfm)
{
struct pcrypt_aead_ctx *ctx = crypto_tfm_ctx(tfm);
crypto_free_aead(ctx->child);
}
static struct crypto_instance *pcrypt_alloc_instance(struct crypto_alg *alg)
{
struct crypto_instance *inst;
struct pcrypt_instance_ctx *ctx;
int err;
inst = kzalloc(sizeof(*inst) + sizeof(*ctx), GFP_KERNEL);
if (!inst) {
inst = ERR_PTR(-ENOMEM);
goto out;
}
err = -ENAMETOOLONG;
if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"pcrypt(%s)", alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
goto out_free_inst;
memcpy(inst->alg.cra_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
ctx = crypto_instance_ctx(inst);
err = crypto_init_spawn(&ctx->spawn, alg, inst,
CRYPTO_ALG_TYPE_MASK);
if (err)
goto out_free_inst;
inst->alg.cra_priority = alg->cra_priority + 100;
inst->alg.cra_blocksize = alg->cra_blocksize;
inst->alg.cra_alignmask = alg->cra_alignmask;
out:
return inst;
out_free_inst:
kfree(inst);
inst = ERR_PTR(err);
goto out;
}
static struct crypto_instance *pcrypt_alloc_aead(struct rtattr **tb)
{
struct crypto_instance *inst;
struct crypto_alg *alg;
struct crypto_attr_type *algt;
algt = crypto_get_attr_type(tb);
alg = crypto_get_attr_alg(tb, algt->type,
(algt->mask & CRYPTO_ALG_TYPE_MASK));
if (IS_ERR(alg))
return ERR_CAST(alg);
inst = pcrypt_alloc_instance(alg);
if (IS_ERR(inst))
goto out_put_alg;
inst->alg.cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC;
inst->alg.cra_type = &crypto_aead_type;
inst->alg.cra_aead.ivsize = alg->cra_aead.ivsize;
inst->alg.cra_aead.geniv = alg->cra_aead.geniv;
inst->alg.cra_aead.maxauthsize = alg->cra_aead.maxauthsize;
inst->alg.cra_ctxsize = sizeof(struct pcrypt_aead_ctx);
inst->alg.cra_init = pcrypt_aead_init_tfm;
inst->alg.cra_exit = pcrypt_aead_exit_tfm;
inst->alg.cra_aead.setkey = pcrypt_aead_setkey;
inst->alg.cra_aead.setauthsize = pcrypt_aead_setauthsize;
inst->alg.cra_aead.encrypt = pcrypt_aead_encrypt;
inst->alg.cra_aead.decrypt = pcrypt_aead_decrypt;
inst->alg.cra_aead.givencrypt = pcrypt_aead_givencrypt;
out_put_alg:
crypto_mod_put(alg);
return inst;
}
static struct crypto_instance *pcrypt_alloc(struct rtattr **tb)
{
struct crypto_attr_type *algt;
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return ERR_CAST(algt);
switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
case CRYPTO_ALG_TYPE_AEAD:
return pcrypt_alloc_aead(tb);
}
return ERR_PTR(-EINVAL);
}
static void pcrypt_free(struct crypto_instance *inst)
{
struct pcrypt_instance_ctx *ctx = crypto_instance_ctx(inst);
crypto_drop_spawn(&ctx->spawn);
kfree(inst);
}
static struct crypto_template pcrypt_tmpl = {
.name = "pcrypt",
.alloc = pcrypt_alloc,
.free = pcrypt_free,
.module = THIS_MODULE,
};
static int __init pcrypt_init(void)
{
encwq = create_workqueue("pencrypt");
if (!encwq)
goto err;
decwq = create_workqueue("pdecrypt");
if (!decwq)
goto err_destroy_encwq;
pcrypt_enc_padata = padata_alloc(cpu_possible_mask, encwq);
if (!pcrypt_enc_padata)
goto err_destroy_decwq;
pcrypt_dec_padata = padata_alloc(cpu_possible_mask, decwq);
if (!pcrypt_dec_padata)
goto err_free_padata;
padata_start(pcrypt_enc_padata);
padata_start(pcrypt_dec_padata);
return crypto_register_template(&pcrypt_tmpl);
err_free_padata:
padata_free(pcrypt_enc_padata);
err_destroy_decwq:
destroy_workqueue(decwq);
err_destroy_encwq:
destroy_workqueue(encwq);
err:
return -ENOMEM;
}
static void __exit pcrypt_exit(void)
{
padata_stop(pcrypt_enc_padata);
padata_stop(pcrypt_dec_padata);
destroy_workqueue(encwq);
destroy_workqueue(decwq);
padata_free(pcrypt_enc_padata);
padata_free(pcrypt_dec_padata);
crypto_unregister_template(&pcrypt_tmpl);
}
module_init(pcrypt_init);
module_exit(pcrypt_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Steffen Klassert <steffen.klassert@secunet.com>");
MODULE_DESCRIPTION("Parallel crypto wrapper");

84
crypto/testmgr.c
View File

@ -1477,9 +1477,54 @@ static int alg_test_cprng(const struct alg_test_desc *desc, const char *driver,
return err;
}
static int alg_test_null(const struct alg_test_desc *desc,
const char *driver, u32 type, u32 mask)
{
return 0;
}
/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
{
.alg = "__driver-cbc-aes-aesni",
.test = alg_test_null,
.suite = {
.cipher = {
.enc = {
.vecs = NULL,
.count = 0
},
.dec = {
.vecs = NULL,
.count = 0
}
}
}
}, {
.alg = "__driver-ecb-aes-aesni",
.test = alg_test_null,
.suite = {
.cipher = {
.enc = {
.vecs = NULL,
.count = 0
},
.dec = {
.vecs = NULL,
.count = 0
}
}
}
}, {
.alg = "__ghash-pclmulqdqni",
.test = alg_test_null,
.suite = {
.hash = {
.vecs = NULL,
.count = 0
}
}
}, {
.alg = "ansi_cprng",
.test = alg_test_cprng,
.fips_allowed = 1,
@ -1622,6 +1667,30 @@ static const struct alg_test_desc alg_test_descs[] = {
.count = CRC32C_TEST_VECTORS
}
}
}, {
.alg = "cryptd(__driver-ecb-aes-aesni)",
.test = alg_test_null,
.suite = {
.cipher = {
.enc = {
.vecs = NULL,
.count = 0
},
.dec = {
.vecs = NULL,
.count = 0
}
}
}
}, {
.alg = "cryptd(__ghash-pclmulqdqni)",
.test = alg_test_null,
.suite = {
.hash = {
.vecs = NULL,
.count = 0
}
}
}, {
.alg = "ctr(aes)",
.test = alg_test_skcipher,
@ -1668,6 +1737,21 @@ static const struct alg_test_desc alg_test_descs[] = {
}
}
}
}, {
.alg = "ecb(__aes-aesni)",
.test = alg_test_null,
.suite = {
.cipher = {
.enc = {
.vecs = NULL,
.count = 0
},
.dec = {
.vecs = NULL,
.count = 0
}
}
}
}, {
.alg = "ecb(aes)",
.test = alg_test_skcipher,

12
drivers/char/hw_random/Kconfig
View File

@ -186,3 +186,15 @@ config HW_RANDOM_MXC_RNGA
module will be called mxc-rnga.
If unsure, say Y.
config HW_RANDOM_NOMADIK
tristate "ST-Ericsson Nomadik Random Number Generator support"
depends on HW_RANDOM && PLAT_NOMADIK
---help---
This driver provides kernel-side support for the Random Number
Generator hardware found on ST-Ericsson SoCs (8815 and 8500).
To compile this driver as a module, choose M here: the
module will be called nomadik-rng.
If unsure, say Y.

1
drivers/char/hw_random/Makefile
View File

@ -18,3 +18,4 @@ obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o
obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o
obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o
obj-$(CONFIG_HW_RANDOM_OCTEON) += octeon-rng.o
obj-$(CONFIG_HW_RANDOM_NOMADIK) += nomadik-rng.o

103
drivers/char/hw_random/nomadik-rng.c Normal file
View File

@ -0,0 +1,103 @@
/*
* Nomadik RNG support
* Copyright 2009 Alessandro Rubini
*
* 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 <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/amba/bus.h>
#include <linux/hw_random.h>
#include <linux/io.h>
static int nmk_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
{
void __iomem *base = (void __iomem *)rng->priv;
/*
* The register is 32 bits and gives 16 random bits (low half).
* A subsequent read will delay the core for 400ns, so we just read
* once and accept the very unlikely very small delay, even if wait==0.
*/
*(u16 *)data = __raw_readl(base + 8) & 0xffff;
return 2;
}
/* we have at most one RNG per machine, granted */
static struct hwrng nmk_rng = {
.name = "nomadik",
.read = nmk_rng_read,
};
static int nmk_rng_probe(struct amba_device *dev, struct amba_id *id)
{
void __iomem *base;
int ret;
ret = amba_request_regions(dev, dev->dev.init_name);
if (ret)
return ret;
ret = -ENOMEM;
base = ioremap(dev->res.start, resource_size(&dev->res));
if (!base)
goto out_release;
nmk_rng.priv = (unsigned long)base;
ret = hwrng_register(&nmk_rng);
if (ret)
goto out_unmap;
return 0;
out_unmap:
iounmap(base);
out_release:
amba_release_regions(dev);
return ret;
}
static int nmk_rng_remove(struct amba_device *dev)
{
void __iomem *base = (void __iomem *)nmk_rng.priv;
hwrng_unregister(&nmk_rng);
iounmap(base);
amba_release_regions(dev);
return 0;
}
static struct amba_id nmk_rng_ids[] = {
{
.id = 0x000805e1,
.mask = 0x000fffff, /* top bits are rev and cfg: accept all */
},
{0, 0},
};
static struct amba_driver nmk_rng_driver = {
.drv = {
.owner = THIS_MODULE,
.name = "rng",
},
.probe = nmk_rng_probe,
.remove = nmk_rng_remove,
.id_table = nmk_rng_ids,
};
static int __init nmk_rng_init(void)
{
return amba_driver_register(&nmk_rng_driver);
}
static void __devexit nmk_rng_exit(void)
{
amba_driver_unregister(&nmk_rng_driver);
}
module_init(nmk_rng_init);
module_exit(nmk_rng_exit);
MODULE_LICENSE("GPL");

2
drivers/crypto/amcc/crypto4xx_core.c
View File

@ -1274,7 +1274,7 @@ static int __exit crypto4xx_remove(struct of_device *ofdev)
return 0;
}
static struct of_device_id crypto4xx_match[] = {
static const struct of_device_id crypto4xx_match[] = {
{ .compatible = "amcc,ppc4xx-crypto",},
{ },
};

8
drivers/crypto/geode-aes.c
View File

@ -135,13 +135,13 @@ static int geode_setkey_cip(struct crypto_tfm *tfm, const u8 *key,
/*
* The requested key size is not supported by HW, do a fallback
*/
op->fallback.blk->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
op->fallback.blk->base.crt_flags |= (tfm->crt_flags & CRYPTO_TFM_REQ_MASK);
op->fallback.cip->base.crt_flags &= ~CRYPTO_TFM_REQ_MASK;
op->fallback.cip->base.crt_flags |= (tfm->crt_flags & CRYPTO_TFM_REQ_MASK);
ret = crypto_cipher_setkey(op->fallback.cip, key, len);
if (ret) {
tfm->crt_flags &= ~CRYPTO_TFM_RES_MASK;
tfm->crt_flags |= (op->fallback.blk->base.crt_flags & CRYPTO_TFM_RES_MASK);
tfm->crt_flags |= (op->fallback.cip->base.crt_flags & CRYPTO_TFM_RES_MASK);
}
return ret;
}
@ -263,7 +263,7 @@ static int fallback_init_cip(struct crypto_tfm *tfm)
if (IS_ERR(op->fallback.cip)) {
printk(KERN_ERR "Error allocating fallback algo %s\n", name);
return PTR_ERR(op->fallback.blk);
return PTR_ERR(op->fallback.cip);
}
return 0;

2
drivers/crypto/talitos.c
View File

@ -1958,7 +1958,7 @@ err_out:
return err;
}
static struct of_device_id talitos_match[] = {
static const struct of_device_id talitos_match[] = {
{
.compatible = "fsl,sec2.0",
},

17
include/crypto/md5.h Normal file
View File

@ -0,0 +1,17 @@
#ifndef _CRYPTO_MD5_H
#define _CRYPTO_MD5_H
#include <linux/types.h>
#define MD5_DIGEST_SIZE 16
#define MD5_HMAC_BLOCK_SIZE 64
#define MD5_BLOCK_WORDS 16
#define MD5_HASH_WORDS 4
struct md5_state {
u32 hash[MD5_HASH_WORDS];
u32 block[MD5_BLOCK_WORDS];
u64 byte_count;
};
#endif

51
include/crypto/pcrypt.h Normal file
View File

@ -0,0 +1,51 @@
/*
* pcrypt - Parallel crypto engine.
*
* Copyright (C) 2009 secunet Security Networks AG
* Copyright (C) 2009 Steffen Klassert <steffen.klassert@secunet.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _CRYPTO_PCRYPT_H
#define _CRYPTO_PCRYPT_H
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/padata.h>
struct pcrypt_request {
struct padata_priv padata;
void *data;
void *__ctx[] CRYPTO_MINALIGN_ATTR;
};
static inline void *pcrypt_request_ctx(struct pcrypt_request *req)
{
return req->__ctx;
}
static inline
struct padata_priv *pcrypt_request_padata(struct pcrypt_request *req)
{
return &req->padata;
}
static inline
struct pcrypt_request *pcrypt_padata_request(struct padata_priv *padata)
{
return container_of(padata, struct pcrypt_request, padata);
}
#endif

88
include/linux/padata.h Normal file
View File

@ -0,0 +1,88 @@
/*
* padata.h - header for the padata parallelization interface
*
* Copyright (C) 2008, 2009 secunet Security Networks AG
* Copyright (C) 2008, 2009 Steffen Klassert <steffen.klassert@secunet.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef PADATA_H
#define PADATA_H
#include <linux/workqueue.h>
#include <linux/spinlock.h>
#include <linux/list.h>
struct padata_priv {
struct list_head list;
struct parallel_data *pd;
int cb_cpu;
int seq_nr;
int info;
void (*parallel)(struct padata_priv *padata);
void (*serial)(struct padata_priv *padata);
};
struct padata_list {
struct list_head list;
spinlock_t lock;
};
struct padata_queue {
struct padata_list parallel;
struct padata_list reorder;
struct padata_list serial;
struct work_struct pwork;
struct work_struct swork;
struct parallel_data *pd;
atomic_t num_obj;
int cpu_index;
};
struct parallel_data {
struct padata_instance *pinst;
struct padata_queue *queue;
atomic_t seq_nr;
atomic_t reorder_objects;
atomic_t refcnt;
unsigned int max_seq_nr;
cpumask_var_t cpumask;
spinlock_t lock;
};
struct padata_instance {
struct notifier_block cpu_notifier;
struct workqueue_struct *wq;
struct parallel_data *pd;
cpumask_var_t cpumask;
struct mutex lock;
u8 flags;
#define PADATA_INIT 1
#define PADATA_RESET 2
};
extern struct padata_instance *padata_alloc(const struct cpumask *cpumask,
struct workqueue_struct *wq);
extern void padata_free(struct padata_instance *pinst);
extern int padata_do_parallel(struct padata_instance *pinst,
struct padata_priv *padata, int cb_cpu);
extern void padata_do_serial(struct padata_priv *padata);
extern int padata_set_cpumask(struct padata_instance *pinst,
cpumask_var_t cpumask);
extern int padata_add_cpu(struct padata_instance *pinst, int cpu);
extern int padata_remove_cpu(struct padata_instance *pinst, int cpu);
extern void padata_start(struct padata_instance *pinst);
extern void padata_stop(struct padata_instance *pinst);
#endif

1
include/linux/pfkeyv2.h
View File

@ -315,6 +315,7 @@ struct sadb_x_kmaddress {
#define SADB_X_EALG_AES_GCM_ICV12 19
#define SADB_X_EALG_AES_GCM_ICV16 20
#define SADB_X_EALG_CAMELLIACBC 22
#define SADB_X_EALG_NULL_AES_GMAC 23
#define SADB_EALG_MAX 253 /* last EALG */
/* private allocations should use 249-255 (RFC2407) */
#define SADB_X_EALG_SERPENTCBC 252 /* draft-ietf-ipsec-ciph-aes-cbc-00 */

4
init/Kconfig
View File

@ -1262,4 +1262,8 @@ source "block/Kconfig"
config PREEMPT_NOTIFIERS
bool
config PADATA
depends on SMP
bool
source "kernel/Kconfig.locks"

1
kernel/Makefile
View File

@ -100,6 +100,7 @@ obj-$(CONFIG_SLOW_WORK_DEBUG) += slow-work-debugfs.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o
obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
obj-$(CONFIG_PADATA) += padata.o
ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
# According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is

690
kernel/padata.c Normal file
View File

@ -0,0 +1,690 @@
/*
* padata.c - generic interface to process data streams in parallel
*
* Copyright (C) 2008, 2009 secunet Security Networks AG
* Copyright (C) 2008, 2009 Steffen Klassert <steffen.klassert@secunet.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/module.h>
#include <linux/cpumask.h>
#include <linux/err.h>
#include <linux/cpu.h>
#include <linux/padata.h>
#include <linux/mutex.h>
#include <linux/sched.h>
#include <linux/rcupdate.h>
#define MAX_SEQ_NR INT_MAX - NR_CPUS
#define MAX_OBJ_NUM 10000 * NR_CPUS
static int padata_index_to_cpu(struct parallel_data *pd, int cpu_index)
{
int cpu, target_cpu;
target_cpu = cpumask_first(pd->cpumask);
for (cpu = 0; cpu < cpu_index; cpu++)
target_cpu = cpumask_next(target_cpu, pd->cpumask);
return target_cpu;
}
static int padata_cpu_hash(struct padata_priv *padata)
{
int cpu_index;
struct parallel_data *pd;
pd = padata->pd;
/*
* Hash the sequence numbers to the cpus by taking
* seq_nr mod. number of cpus in use.
*/
cpu_index = padata->seq_nr % cpumask_weight(pd->cpumask);
return padata_index_to_cpu(pd, cpu_index);
}
static void padata_parallel_worker(struct work_struct *work)
{
struct padata_queue *queue;
struct parallel_data *pd;
struct padata_instance *pinst;
LIST_HEAD(local_list);
local_bh_disable();
queue = container_of(work, struct padata_queue, pwork);
pd = queue->pd;
pinst = pd->pinst;
spin_lock(&queue->parallel.lock);
list_replace_init(&queue->parallel.list, &local_list);
spin_unlock(&queue->parallel.lock);
while (!list_empty(&local_list)) {
struct padata_priv *padata;
padata = list_entry(local_list.next,
struct padata_priv, list);
list_del_init(&padata->list);
padata->parallel(padata);
}
local_bh_enable();
}
/*
* padata_do_parallel - padata parallelization function
*
* @pinst: padata instance
* @padata: object to be parallelized
* @cb_cpu: cpu the serialization callback function will run on,
* must be in the cpumask of padata.
*
* The parallelization callback function will run with BHs off.
* Note: Every object which is parallelized by padata_do_parallel
* must be seen by padata_do_serial.
*/
int padata_do_parallel(struct padata_instance *pinst,
struct padata_priv *padata, int cb_cpu)
{
int target_cpu, err;
struct padata_queue *queue;
struct parallel_data *pd;
rcu_read_lock_bh();
pd = rcu_dereference(pinst->pd);
err = 0;
if (!(pinst->flags & PADATA_INIT))
goto out;
err = -EBUSY;
if ((pinst->flags & PADATA_RESET))
goto out;
if (atomic_read(&pd->refcnt) >= MAX_OBJ_NUM)
goto out;
err = -EINVAL;
if (!cpumask_test_cpu(cb_cpu, pd->cpumask))
goto out;
err = -EINPROGRESS;
atomic_inc(&pd->refcnt);
padata->pd = pd;
padata->cb_cpu = cb_cpu;
if (unlikely(atomic_read(&pd->seq_nr) == pd->max_seq_nr))
atomic_set(&pd->seq_nr, -1);
padata->seq_nr = atomic_inc_return(&pd->seq_nr);
target_cpu = padata_cpu_hash(padata);
queue = per_cpu_ptr(pd->queue, target_cpu);
spin_lock(&queue->parallel.lock);
list_add_tail(&padata->list, &queue->parallel.list);
spin_unlock(&queue->parallel.lock);
queue_work_on(target_cpu, pinst->wq, &queue->pwork);
out:
rcu_read_unlock_bh();
return err;
}
EXPORT_SYMBOL(padata_do_parallel);
static struct padata_priv *padata_get_next(struct parallel_data *pd)
{
int cpu, num_cpus, empty, calc_seq_nr;
int seq_nr, next_nr, overrun, next_overrun;
struct padata_queue *queue, *next_queue;
struct padata_priv *padata;
struct padata_list *reorder;
empty = 0;
next_nr = -1;
next_overrun = 0;
next_queue = NULL;
num_cpus = cpumask_weight(pd->cpumask);
for_each_cpu(cpu, pd->cpumask) {
queue = per_cpu_ptr(pd->queue, cpu);
reorder = &queue->reorder;
/*
* Calculate the seq_nr of the object that should be
* next in this queue.
*/
overrun = 0;
calc_seq_nr = (atomic_read(&queue->num_obj) * num_cpus)
+ queue->cpu_index;
if (unlikely(calc_seq_nr > pd->max_seq_nr)) {
calc_seq_nr = calc_seq_nr - pd->max_seq_nr - 1;
overrun = 1;
}
if (!list_empty(&reorder->list)) {
padata = list_entry(reorder->list.next,
struct padata_priv, list);
seq_nr = padata->seq_nr;
BUG_ON(calc_seq_nr != seq_nr);
} else {
seq_nr = calc_seq_nr;
empty++;
}
if (next_nr < 0 || seq_nr < next_nr
|| (next_overrun && !overrun)) {
next_nr = seq_nr;
next_overrun = overrun;
next_queue = queue;
}
}
padata = NULL;
if (empty == num_cpus)
goto out;
reorder = &next_queue->reorder;
if (!list_empty(&reorder->list)) {
padata = list_entry(reorder->list.next,
struct padata_priv, list);
if (unlikely(next_overrun)) {
for_each_cpu(cpu, pd->cpumask) {
queue = per_cpu_ptr(pd->queue, cpu);
atomic_set(&queue->num_obj, 0);
}
}
spin_lock(&reorder->lock);
list_del_init(&padata->list);
atomic_dec(&pd->reorder_objects);
spin_unlock(&reorder->lock);
atomic_inc(&next_queue->num_obj);
goto out;
}
if (next_nr % num_cpus == next_queue->cpu_index) {
padata = ERR_PTR(-ENODATA);
goto out;
}
padata = ERR_PTR(-EINPROGRESS);
out:
return padata;
}
static void padata_reorder(struct parallel_data *pd)
{
struct padata_priv *padata;
struct padata_queue *queue;
struct padata_instance *pinst = pd->pinst;
try_again:
if (!spin_trylock_bh(&pd->lock))
goto out;
while (1) {
padata = padata_get_next(pd);
if (!padata || PTR_ERR(padata) == -EINPROGRESS)
break;
if (PTR_ERR(padata) == -ENODATA) {
spin_unlock_bh(&pd->lock);
goto out;
}
queue = per_cpu_ptr(pd->queue, padata->cb_cpu);
spin_lock(&queue->serial.lock);
list_add_tail(&padata->list, &queue->serial.list);
spin_unlock(&queue->serial.lock);
queue_work_on(padata->cb_cpu, pinst->wq, &queue->swork);
}
spin_unlock_bh(&pd->lock);
if (atomic_read(&pd->reorder_objects))
goto try_again;
out:
return;
}
static void padata_serial_worker(struct work_struct *work)
{
struct padata_queue *queue;
struct parallel_data *pd;
LIST_HEAD(local_list);
local_bh_disable();
queue = container_of(work, struct padata_queue, swork);
pd = queue->pd;
spin_lock(&queue->serial.lock);
list_replace_init(&queue->serial.list, &local_list);
spin_unlock(&queue->serial.lock);
while (!list_empty(&local_list)) {
struct padata_priv *padata;
padata = list_entry(local_list.next,
struct padata_priv, list);
list_del_init(&padata->list);
padata->serial(padata);
atomic_dec(&pd->refcnt);
}
local_bh_enable();
}
/*
* padata_do_serial - padata serialization function
*
* @padata: object to be serialized.
*
* padata_do_serial must be called for every parallelized object.
* The serialization callback function will run with BHs off.
*/
void padata_do_serial(struct padata_priv *padata)
{
int cpu;
struct padata_queue *queue;
struct parallel_data *pd;
pd = padata->pd;
cpu = get_cpu();
queue = per_cpu_ptr(pd->queue, cpu);
spin_lock(&queue->reorder.lock);
atomic_inc(&pd->reorder_objects);
list_add_tail(&padata->list, &queue->reorder.list);
spin_unlock(&queue->reorder.lock);
put_cpu();
padata_reorder(pd);
}
EXPORT_SYMBOL(padata_do_serial);
static struct parallel_data *padata_alloc_pd(struct padata_instance *pinst,
const struct cpumask *cpumask)
{
int cpu, cpu_index, num_cpus;
struct padata_queue *queue;
struct parallel_data *pd;
cpu_index = 0;
pd = kzalloc(sizeof(struct parallel_data), GFP_KERNEL);
if (!pd)
goto err;
pd->queue = alloc_percpu(struct padata_queue);
if (!pd->queue)
goto err_free_pd;
if (!alloc_cpumask_var(&pd->cpumask, GFP_KERNEL))
goto err_free_queue;
for_each_possible_cpu(cpu) {
queue = per_cpu_ptr(pd->queue, cpu);
queue->pd = pd;
if (cpumask_test_cpu(cpu, cpumask)
&& cpumask_test_cpu(cpu, cpu_active_mask)) {
queue->cpu_index = cpu_index;
cpu_index++;
} else
queue->cpu_index = -1;
INIT_LIST_HEAD(&queue->reorder.list);
INIT_LIST_HEAD(&queue->parallel.list);
INIT_LIST_HEAD(&queue->serial.list);
spin_lock_init(&queue->reorder.lock);
spin_lock_init(&queue->parallel.lock);
spin_lock_init(&queue->serial.lock);
INIT_WORK(&queue->pwork, padata_parallel_worker);
INIT_WORK(&queue->swork, padata_serial_worker);
atomic_set(&queue->num_obj, 0);
}
cpumask_and(pd->cpumask, cpumask, cpu_active_mask);
num_cpus = cpumask_weight(pd->cpumask);
pd->max_seq_nr = (MAX_SEQ_NR / num_cpus) * num_cpus - 1;
atomic_set(&pd->seq_nr, -1);
atomic_set(&pd->reorder_objects, 0);
atomic_set(&pd->refcnt, 0);
pd->pinst = pinst;
spin_lock_init(&pd->lock);
return pd;
err_free_queue:
free_percpu(pd->queue);
err_free_pd:
kfree(pd);
err:
return NULL;
}
static void padata_free_pd(struct parallel_data *pd)
{
free_cpumask_var(pd->cpumask);
free_percpu(pd->queue);
kfree(pd);
}
static void padata_replace(struct padata_instance *pinst,
struct parallel_data *pd_new)
{
struct parallel_data *pd_old = pinst->pd;
pinst->flags |= PADATA_RESET;
rcu_assign_pointer(pinst->pd, pd_new);
synchronize_rcu();
while (atomic_read(&pd_old->refcnt) != 0)
yield();
flush_workqueue(pinst->wq);
padata_free_pd(pd_old);
pinst->flags &= ~PADATA_RESET;
}
/*
* padata_set_cpumask - set the cpumask that padata should use
*
* @pinst: padata instance
* @cpumask: the cpumask to use
*/
int padata_set_cpumask(struct padata_instance *pinst,
cpumask_var_t cpumask)
{
struct parallel_data *pd;
int err = 0;
might_sleep();
mutex_lock(&pinst->lock);
pd = padata_alloc_pd(pinst, cpumask);
if (!pd) {
err = -ENOMEM;
goto out;
}
cpumask_copy(pinst->cpumask, cpumask);
padata_replace(pinst, pd);
out:
mutex_unlock(&pinst->lock);
return err;
}
EXPORT_SYMBOL(padata_set_cpumask);
static int __padata_add_cpu(struct padata_instance *pinst, int cpu)
{
struct parallel_data *pd;
if (cpumask_test_cpu(cpu, cpu_active_mask)) {
pd = padata_alloc_pd(pinst, pinst->cpumask);
if (!pd)
return -ENOMEM;
padata_replace(pinst, pd);
}
return 0;
}
/*
* padata_add_cpu - add a cpu to the padata cpumask
*
* @pinst: padata instance
* @cpu: cpu to add
*/
int padata_add_cpu(struct padata_instance *pinst, int cpu)
{
int err;
might_sleep();
mutex_lock(&pinst->lock);
cpumask_set_cpu(cpu, pinst->cpumask);
err = __padata_add_cpu(pinst, cpu);
mutex_unlock(&pinst->lock);
return err;
}
EXPORT_SYMBOL(padata_add_cpu);
static int __padata_remove_cpu(struct padata_instance *pinst, int cpu)
{
struct parallel_data *pd;
if (cpumask_test_cpu(cpu, cpu_online_mask)) {
pd = padata_alloc_pd(pinst, pinst->cpumask);
if (!pd)
return -ENOMEM;
padata_replace(pinst, pd);
}
return 0;
}
/*
* padata_remove_cpu - remove a cpu from the padata cpumask
*
* @pinst: padata instance
* @cpu: cpu to remove
*/
int padata_remove_cpu(struct padata_instance *pinst, int cpu)
{
int err;
might_sleep();
mutex_lock(&pinst->lock);
cpumask_clear_cpu(cpu, pinst->cpumask);
err = __padata_remove_cpu(pinst, cpu);
mutex_unlock(&pinst->lock);
return err;
}
EXPORT_SYMBOL(padata_remove_cpu);
/*
* padata_start - start the parallel processing
*
* @pinst: padata instance to start
*/
void padata_start(struct padata_instance *pinst)
{
might_sleep();
mutex_lock(&pinst->lock);
pinst->flags |= PADATA_INIT;
mutex_unlock(&pinst->lock);
}
EXPORT_SYMBOL(padata_start);
/*
* padata_stop - stop the parallel processing
*
* @pinst: padata instance to stop
*/
void padata_stop(struct padata_instance *pinst)
{
might_sleep();
mutex_lock(&pinst->lock);
pinst->flags &= ~PADATA_INIT;
mutex_unlock(&pinst->lock);
}
EXPORT_SYMBOL(padata_stop);
static int __cpuinit padata_cpu_callback(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
int err;
struct padata_instance *pinst;
int cpu = (unsigned long)hcpu;
pinst = container_of(nfb, struct padata_instance, cpu_notifier);
switch (action) {
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
if (!cpumask_test_cpu(cpu, pinst->cpumask))
break;
mutex_lock(&pinst->lock);
err = __padata_add_cpu(pinst, cpu);
mutex_unlock(&pinst->lock);
if (err)
return NOTIFY_BAD;
break;
case CPU_DOWN_PREPARE:
case CPU_DOWN_PREPARE_FROZEN:
if (!cpumask_test_cpu(cpu, pinst->cpumask))
break;
mutex_lock(&pinst->lock);
err = __padata_remove_cpu(pinst, cpu);
mutex_unlock(&pinst->lock);
if (err)
return NOTIFY_BAD;
break;
case CPU_UP_CANCELED:
case CPU_UP_CANCELED_FROZEN:
if (!cpumask_test_cpu(cpu, pinst->cpumask))
break;
mutex_lock(&pinst->lock);
__padata_remove_cpu(pinst, cpu);
mutex_unlock(&pinst->lock);
case CPU_DOWN_FAILED:
case CPU_DOWN_FAILED_FROZEN:
if (!cpumask_test_cpu(cpu, pinst->cpumask))
break;
mutex_lock(&pinst->lock);
__padata_add_cpu(pinst, cpu);
mutex_unlock(&pinst->lock);
}
return NOTIFY_OK;
}
/*
* padata_alloc - allocate and initialize a padata instance
*
* @cpumask: cpumask that padata uses for parallelization
* @wq: workqueue to use for the allocated padata instance
*/
struct padata_instance *padata_alloc(const struct cpumask *cpumask,
struct workqueue_struct *wq)
{
int err;
struct padata_instance *pinst;
struct parallel_data *pd;
pinst = kzalloc(sizeof(struct padata_instance), GFP_KERNEL);
if (!pinst)
goto err;
pd = padata_alloc_pd(pinst, cpumask);
if (!pd)
goto err_free_inst;
rcu_assign_pointer(pinst->pd, pd);
pinst->wq = wq;
cpumask_copy(pinst->cpumask, cpumask);
pinst->flags = 0;
pinst->cpu_notifier.notifier_call = padata_cpu_callback;
pinst->cpu_notifier.priority = 0;
err = register_hotcpu_notifier(&pinst->cpu_notifier);
if (err)
goto err_free_pd;
mutex_init(&pinst->lock);
return pinst;
err_free_pd:
padata_free_pd(pd);
err_free_inst:
kfree(pinst);
err:
return NULL;
}
EXPORT_SYMBOL(padata_alloc);
/*
* padata_free - free a padata instance
*
* @ padata_inst: padata instance to free
*/
void padata_free(struct padata_instance *pinst)
{
padata_stop(pinst);
synchronize_rcu();
while (atomic_read(&pinst->pd->refcnt) != 0)
yield();
unregister_hotcpu_notifier(&pinst->cpu_notifier);
padata_free_pd(pinst->pd);
kfree(pinst);
}
EXPORT_SYMBOL(padata_free);

16
net/xfrm/xfrm_algo.c
View File

@ -125,6 +125,22 @@ static struct xfrm_algo_desc aead_list[] = {
.sadb_alg_maxbits = 256
}
},
{
.name = "rfc4543(gcm(aes))",
.uinfo = {
.aead = {
.icv_truncbits = 128,
}
},
.desc = {
.sadb_alg_id = SADB_X_EALG_NULL_AES_GMAC,
.sadb_alg_ivlen = 8,
.sadb_alg_minbits = 128,
.sadb_alg_maxbits = 256
}
},
};
static struct xfrm_algo_desc aalg_list[] = {