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crypto: user - Implement a generic crypto statistics

Browse Source 
This patch implement a generic way to get statistics about all crypto
usages.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Corentin Labbe 2018-09-19 10:10:54 +00:00 committed by Herbert Xu
parent a9cbfe4c78
commit cac5818c25
17 changed files with 970 additions and 35 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
crypto/Kconfig
View File

@ -1799,6 +1799,17 @@ config CRYPTO_USER_API_AEAD
This option enables the user-spaces interface for AEAD
cipher algorithms.
config CRYPTO_STATS
bool "Crypto usage statistics for User-space"
help
This option enables the gathering of crypto stats.
This will collect:
- encrypt/decrypt size and numbers of symmeric operations
- compress/decompress size and numbers of compress operations
- size and numbers of hash operations
- encrypt/decrypt/sign/verify numbers for asymmetric operations
- generate/seed numbers for rng operations
config CRYPTO_HASH_INFO
bool

1
crypto/Makefile
View File

@ -54,6 +54,7 @@ cryptomgr-y := algboss.o testmgr.o
obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o
obj-$(CONFIG_CRYPTO_USER) += crypto_user.o
crypto_user-y := crypto_user_base.o crypto_user_stat.o
obj-$(CONFIG_CRYPTO_CMAC) += cmac.o
obj-$(CONFIG_CRYPTO_HMAC) += hmac.o
obj-$(CONFIG_CRYPTO_VMAC) += vmac.o

21
crypto/ahash.c
View File

@ -364,24 +364,35 @@ static int crypto_ahash_op(struct ahash_request *req,
int crypto_ahash_final(struct ahash_request *req)
{
return crypto_ahash_op(req, crypto_ahash_reqtfm(req)->final);
int ret;
ret = crypto_ahash_op(req, crypto_ahash_reqtfm(req)->final);
crypto_stat_ahash_final(req, ret);
return ret;
}
EXPORT_SYMBOL_GPL(crypto_ahash_final);
int crypto_ahash_finup(struct ahash_request *req)
{
return crypto_ahash_op(req, crypto_ahash_reqtfm(req)->finup);
int ret;
ret = crypto_ahash_op(req, crypto_ahash_reqtfm(req)->finup);
crypto_stat_ahash_final(req, ret);
return ret;
}
EXPORT_SYMBOL_GPL(crypto_ahash_finup);
int crypto_ahash_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
int ret;
if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
return -ENOKEY;
return crypto_ahash_op(req, tfm->digest);
ret = -ENOKEY;
else
ret = crypto_ahash_op(req, tfm->digest);
crypto_stat_ahash_final(req, ret);
return ret;
}
EXPORT_SYMBOL_GPL(crypto_ahash_digest);

8
crypto/algapi.c
View File

@ -258,6 +258,14 @@ static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
list_add(&alg->cra_list, &crypto_alg_list);
list_add(&larval->alg.cra_list, &crypto_alg_list);
atomic_set(&alg->encrypt_cnt, 0);
atomic_set(&alg->decrypt_cnt, 0);
atomic64_set(&alg->encrypt_tlen, 0);
atomic64_set(&alg->decrypt_tlen, 0);
atomic_set(&alg->verify_cnt, 0);
atomic_set(&alg->cipher_err_cnt, 0);
atomic_set(&alg->sign_cnt, 0);
out:
return larval;

9
crypto/crypto_user.c → crypto/crypto_user_base.c
View File

@ -29,6 +29,7 @@
#include <crypto/internal/rng.h>
#include <crypto/akcipher.h>
#include <crypto/kpp.h>
#include <crypto/internal/cryptouser.h>
#include "internal.h"
@ -37,7 +38,7 @@
static DEFINE_MUTEX(crypto_cfg_mutex);
/* The crypto netlink socket */
static struct sock *crypto_nlsk;
struct sock *crypto_nlsk;
struct crypto_dump_info {
struct sk_buff *in_skb;
@ -46,7 +47,7 @@ struct crypto_dump_info {
u16 nlmsg_flags;
};
static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
{
struct crypto_alg *q, *alg = NULL;
@ -461,6 +462,7 @@ static const int crypto_msg_min[CRYPTO_NR_MSGTYPES] = {
[CRYPTO_MSG_UPDATEALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[CRYPTO_MSG_DELRNG - CRYPTO_MSG_BASE] = 0,
[CRYPTO_MSG_GETSTAT - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
};
static const struct nla_policy crypto_policy[CRYPTOCFGA_MAX+1] = {
@ -481,6 +483,9 @@ static const struct crypto_link {
.dump = crypto_dump_report,
.done = crypto_dump_report_done},
[CRYPTO_MSG_DELRNG - CRYPTO_MSG_BASE] = { .doit = crypto_del_rng },
[CRYPTO_MSG_GETSTAT - CRYPTO_MSG_BASE] = { .doit = crypto_reportstat,
.dump = crypto_dump_reportstat,
.done = crypto_dump_reportstat_done},
};
static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,

463
crypto/crypto_user_stat.c Normal file
View File

@ -0,0 +1,463 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Crypto user configuration API.
*
* Copyright (C) 2017-2018 Corentin Labbe <clabbe@baylibre.com>
*
*/
#include <linux/crypto.h>
#include <linux/cryptouser.h>
#include <linux/sched.h>
#include <net/netlink.h>
#include <crypto/internal/skcipher.h>
#include <crypto/internal/rng.h>
#include <crypto/akcipher.h>
#include <crypto/kpp.h>
#include <crypto/internal/cryptouser.h>
#include "internal.h"
#define null_terminated(x) (strnlen(x, sizeof(x)) < sizeof(x))
static DEFINE_MUTEX(crypto_cfg_mutex);
extern struct sock *crypto_nlsk;
struct crypto_dump_info {
struct sk_buff *in_skb;
struct sk_buff *out_skb;
u32 nlmsg_seq;
u16 nlmsg_flags;
};
static int crypto_report_aead(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat raead;
u64 v64;
u32 v32;
strncpy(raead.type, "aead", sizeof(raead.type));
v32 = atomic_read(&alg->encrypt_cnt);
raead.stat_encrypt_cnt = v32;
v64 = atomic64_read(&alg->encrypt_tlen);
raead.stat_encrypt_tlen = v64;
v32 = atomic_read(&alg->decrypt_cnt);
raead.stat_decrypt_cnt = v32;
v64 = atomic64_read(&alg->decrypt_tlen);
raead.stat_decrypt_tlen = v64;
v32 = atomic_read(&alg->aead_err_cnt);
raead.stat_aead_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_AEAD,
sizeof(struct crypto_stat), &raead))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat rcipher;
u64 v64;
u32 v32;
strlcpy(rcipher.type, "cipher", sizeof(rcipher.type));
v32 = atomic_read(&alg->encrypt_cnt);
rcipher.stat_encrypt_cnt = v32;
v64 = atomic64_read(&alg->encrypt_tlen);
rcipher.stat_encrypt_tlen = v64;
v32 = atomic_read(&alg->decrypt_cnt);
rcipher.stat_decrypt_cnt = v32;
v64 = atomic64_read(&alg->decrypt_tlen);
rcipher.stat_decrypt_tlen = v64;
v32 = atomic_read(&alg->cipher_err_cnt);
rcipher.stat_cipher_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_CIPHER,
sizeof(struct crypto_stat), &rcipher))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat rcomp;
u64 v64;
u32 v32;
strlcpy(rcomp.type, "compression", sizeof(rcomp.type));
v32 = atomic_read(&alg->compress_cnt);
rcomp.stat_compress_cnt = v32;
v64 = atomic64_read(&alg->compress_tlen);
rcomp.stat_compress_tlen = v64;
v32 = atomic_read(&alg->decompress_cnt);
rcomp.stat_decompress_cnt = v32;
v64 = atomic64_read(&alg->decompress_tlen);
rcomp.stat_decompress_tlen = v64;
v32 = atomic_read(&alg->cipher_err_cnt);
rcomp.stat_compress_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_COMPRESS,
sizeof(struct crypto_stat), &rcomp))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat racomp;
u64 v64;
u32 v32;
strlcpy(racomp.type, "acomp", sizeof(racomp.type));
v32 = atomic_read(&alg->compress_cnt);
racomp.stat_compress_cnt = v32;
v64 = atomic64_read(&alg->compress_tlen);
racomp.stat_compress_tlen = v64;
v32 = atomic_read(&alg->decompress_cnt);
racomp.stat_decompress_cnt = v32;
v64 = atomic64_read(&alg->decompress_tlen);
racomp.stat_decompress_tlen = v64;
v32 = atomic_read(&alg->cipher_err_cnt);
racomp.stat_compress_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_ACOMP,
sizeof(struct crypto_stat), &racomp))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat rakcipher;
u64 v64;
u32 v32;
strncpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
v32 = atomic_read(&alg->encrypt_cnt);
rakcipher.stat_encrypt_cnt = v32;
v64 = atomic64_read(&alg->encrypt_tlen);
rakcipher.stat_encrypt_tlen = v64;
v32 = atomic_read(&alg->decrypt_cnt);
rakcipher.stat_decrypt_cnt = v32;
v64 = atomic64_read(&alg->decrypt_tlen);
rakcipher.stat_decrypt_tlen = v64;
v32 = atomic_read(&alg->sign_cnt);
rakcipher.stat_sign_cnt = v32;
v32 = atomic_read(&alg->verify_cnt);
rakcipher.stat_verify_cnt = v32;
v32 = atomic_read(&alg->akcipher_err_cnt);
rakcipher.stat_akcipher_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER,
sizeof(struct crypto_stat), &rakcipher))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat rkpp;
u32 v;
strlcpy(rkpp.type, "kpp", sizeof(rkpp.type));
v = atomic_read(&alg->setsecret_cnt);
rkpp.stat_setsecret_cnt = v;
v = atomic_read(&alg->generate_public_key_cnt);
rkpp.stat_generate_public_key_cnt = v;
v = atomic_read(&alg->compute_shared_secret_cnt);
rkpp.stat_compute_shared_secret_cnt = v;
v = atomic_read(&alg->kpp_err_cnt);
rkpp.stat_kpp_err_cnt = v;
if (nla_put(skb, CRYPTOCFGA_STAT_KPP,
sizeof(struct crypto_stat), &rkpp))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_ahash(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat rhash;
u64 v64;
u32 v32;
strncpy(rhash.type, "ahash", sizeof(rhash.type));
v32 = atomic_read(&alg->hash_cnt);
rhash.stat_hash_cnt = v32;
v64 = atomic64_read(&alg->hash_tlen);
rhash.stat_hash_tlen = v64;
v32 = atomic_read(&alg->hash_err_cnt);
rhash.stat_hash_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_HASH,
sizeof(struct crypto_stat), &rhash))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_shash(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat rhash;
u64 v64;
u32 v32;
strncpy(rhash.type, "shash", sizeof(rhash.type));
v32 = atomic_read(&alg->hash_cnt);
rhash.stat_hash_cnt = v32;
v64 = atomic64_read(&alg->hash_tlen);
rhash.stat_hash_tlen = v64;
v32 = atomic_read(&alg->hash_err_cnt);
rhash.stat_hash_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_HASH,
sizeof(struct crypto_stat), &rhash))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_report_rng(struct sk_buff *skb, struct crypto_alg *alg)
{
struct crypto_stat rrng;
u64 v64;
u32 v32;
strncpy(rrng.type, "rng", sizeof(rrng.type));
v32 = atomic_read(&alg->generate_cnt);
rrng.stat_generate_cnt = v32;
v64 = atomic64_read(&alg->generate_tlen);
rrng.stat_generate_tlen = v64;
v32 = atomic_read(&alg->seed_cnt);
rrng.stat_seed_cnt = v32;
v32 = atomic_read(&alg->hash_err_cnt);
rrng.stat_rng_err_cnt = v32;
if (nla_put(skb, CRYPTOCFGA_STAT_RNG,
sizeof(struct crypto_stat), &rrng))
goto nla_put_failure;
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_reportstat_one(struct crypto_alg *alg,
struct crypto_user_alg *ualg,
struct sk_buff *skb)
{
strlcpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
strlcpy(ualg->cru_driver_name, alg->cra_driver_name,
sizeof(ualg->cru_driver_name));
strlcpy(ualg->cru_module_name, module_name(alg->cra_module),
sizeof(ualg->cru_module_name));
ualg->cru_type = 0;
ualg->cru_mask = 0;
ualg->cru_flags = alg->cra_flags;
ualg->cru_refcnt = refcount_read(&alg->cra_refcnt);
if (nla_put_u32(skb, CRYPTOCFGA_PRIORITY_VAL, alg->cra_priority))
goto nla_put_failure;
if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
struct crypto_stat rl;
strlcpy(rl.type, "larval", sizeof(rl.type));
if (nla_put(skb, CRYPTOCFGA_STAT_LARVAL,
sizeof(struct crypto_stat), &rl))
goto nla_put_failure;
goto out;
}
switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
case CRYPTO_ALG_TYPE_AEAD:
if (crypto_report_aead(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_SKCIPHER:
if (crypto_report_cipher(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_BLKCIPHER:
if (crypto_report_cipher(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_CIPHER:
if (crypto_report_cipher(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_COMPRESS:
if (crypto_report_comp(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_ACOMPRESS:
if (crypto_report_acomp(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_SCOMPRESS:
if (crypto_report_acomp(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_AKCIPHER:
if (crypto_report_akcipher(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_KPP:
if (crypto_report_kpp(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_AHASH:
if (crypto_report_ahash(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_HASH:
if (crypto_report_shash(skb, alg))
goto nla_put_failure;
break;
case CRYPTO_ALG_TYPE_RNG:
if (crypto_report_rng(skb, alg))
goto nla_put_failure;
break;
default:
pr_err("ERROR: Unhandled alg %d in %s\n",
alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL),
__func__);
}
out:
return 0;
nla_put_failure:
return -EMSGSIZE;
}
static int crypto_reportstat_alg(struct crypto_alg *alg,
struct crypto_dump_info *info)
{
struct sk_buff *in_skb = info->in_skb;
struct sk_buff *skb = info->out_skb;
struct nlmsghdr *nlh;
struct crypto_user_alg *ualg;
int err = 0;
nlh = nlmsg_put(skb, NETLINK_CB(in_skb).portid, info->nlmsg_seq,
CRYPTO_MSG_GETSTAT, sizeof(*ualg), info->nlmsg_flags);
if (!nlh) {
err = -EMSGSIZE;
goto out;
}
ualg = nlmsg_data(nlh);
err = crypto_reportstat_one(alg, ualg, skb);
if (err) {
nlmsg_cancel(skb, nlh);
goto out;
}
nlmsg_end(skb, nlh);
out:
return err;
}
int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh,
struct nlattr **attrs)
{
struct crypto_user_alg *p = nlmsg_data(in_nlh);
struct crypto_alg *alg;
struct sk_buff *skb;
struct crypto_dump_info info;
int err;
if (!null_terminated(p->cru_name) || !null_terminated(p->cru_driver_name))
return -EINVAL;
alg = crypto_alg_match(p, 0);
if (!alg)
return -ENOENT;
err = -ENOMEM;
skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
if (!skb)
goto drop_alg;
info.in_skb = in_skb;
info.out_skb = skb;
info.nlmsg_seq = in_nlh->nlmsg_seq;
info.nlmsg_flags = 0;
err = crypto_reportstat_alg(alg, &info);
drop_alg:
crypto_mod_put(alg);
if (err)
return err;
return nlmsg_unicast(crypto_nlsk, skb, NETLINK_CB(in_skb).portid);
}
int crypto_dump_reportstat(struct sk_buff *skb, struct netlink_callback *cb)
{
struct crypto_alg *alg;
struct crypto_dump_info info;
int err;
if (cb->args[0])
goto out;
cb->args[0] = 1;
info.in_skb = cb->skb;
info.out_skb = skb;
info.nlmsg_seq = cb->nlh->nlmsg_seq;
info.nlmsg_flags = NLM_F_MULTI;
list_for_each_entry(alg, &crypto_alg_list, cra_list) {
err = crypto_reportstat_alg(alg, &info);
if (err)
goto out_err;
}
out:
return skb->len;
out_err:
return err;
}
int crypto_dump_reportstat_done(struct netlink_callback *cb)
{
return 0;
}
MODULE_LICENSE("GPL");

1
crypto/rng.c
View File

@ -50,6 +50,7 @@ int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
}
err = crypto_rng_alg(tfm)->seed(tfm, seed, slen);
crypto_stat_rng_seed(tfm, err);
out:
kzfree(buf);
return err;

38
include/crypto/acompress.h
View File

@ -234,6 +234,34 @@ static inline void acomp_request_set_params(struct acomp_req *req,
req->flags |= CRYPTO_ACOMP_ALLOC_OUTPUT;
}
static inline void crypto_stat_compress(struct acomp_req *req, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->compress_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->compress_cnt);
atomic64_add(req->slen, &tfm->base.__crt_alg->compress_tlen);
}
#endif
}
static inline void crypto_stat_decompress(struct acomp_req *req, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->compress_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->decompress_cnt);
atomic64_add(req->slen, &tfm->base.__crt_alg->decompress_tlen);
}
#endif
}
/**
* crypto_acomp_compress() -- Invoke asynchronous compress operation
*
@ -246,8 +274,11 @@ static inline void acomp_request_set_params(struct acomp_req *req,
static inline int crypto_acomp_compress(struct acomp_req *req)
{
struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
int ret;
return tfm->compress(req);
ret = tfm->compress(req);
crypto_stat_compress(req, ret);
return ret;
}
/**
@ -262,8 +293,11 @@ static inline int crypto_acomp_compress(struct acomp_req *req)
static inline int crypto_acomp_decompress(struct acomp_req *req)
{
struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
int ret;
return tfm->decompress(req);
ret = tfm->decompress(req);
crypto_stat_decompress(req, ret);
return ret;
}
#endif

51
include/crypto/aead.h
View File

@ -306,6 +306,34 @@ static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
return __crypto_aead_cast(req->base.tfm);
}
static inline void crypto_stat_aead_encrypt(struct aead_request *req, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->aead_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->encrypt_cnt);
atomic64_add(req->cryptlen, &tfm->base.__crt_alg->encrypt_tlen);
}
#endif
}
static inline void crypto_stat_aead_decrypt(struct aead_request *req, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->aead_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->decrypt_cnt);
atomic64_add(req->cryptlen, &tfm->base.__crt_alg->decrypt_tlen);
}
#endif
}
/**
* crypto_aead_encrypt() - encrypt plaintext
* @req: reference to the aead_request handle that holds all information
@ -328,11 +356,14 @@ static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
static inline int crypto_aead_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
int ret;
if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
return -ENOKEY;
return crypto_aead_alg(aead)->encrypt(req);
ret = -ENOKEY;
else
ret = crypto_aead_alg(aead)->encrypt(req);
crypto_stat_aead_encrypt(req, ret);
return ret;
}
/**
@ -360,14 +391,16 @@ static inline int crypto_aead_encrypt(struct aead_request *req)
static inline int crypto_aead_decrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
int ret;
if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
return -ENOKEY;
if (req->cryptlen < crypto_aead_authsize(aead))
return -EINVAL;
return crypto_aead_alg(aead)->decrypt(req);
ret = -ENOKEY;
else if (req->cryptlen < crypto_aead_authsize(aead))
ret = -EINVAL;
else
ret = crypto_aead_alg(aead)->decrypt(req);
crypto_stat_aead_decrypt(req, ret);
return ret;
}
/**

76
include/crypto/akcipher.h
View File

@ -271,6 +271,62 @@ static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *tfm)
return alg->max_size(tfm);
}
static inline void crypto_stat_akcipher_encrypt(struct akcipher_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->encrypt_cnt);
atomic64_add(req->src_len, &tfm->base.__crt_alg->encrypt_tlen);
}
#endif
}
static inline void crypto_stat_akcipher_decrypt(struct akcipher_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->decrypt_cnt);
atomic64_add(req->src_len, &tfm->base.__crt_alg->decrypt_tlen);
}
#endif
}
static inline void crypto_stat_akcipher_sign(struct akcipher_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY)
atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
else
atomic_inc(&tfm->base.__crt_alg->sign_cnt);
#endif
}
static inline void crypto_stat_akcipher_verify(struct akcipher_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY)
atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
else
atomic_inc(&tfm->base.__crt_alg->verify_cnt);
#endif
}
/**
* crypto_akcipher_encrypt() - Invoke public key encrypt operation
*
@ -285,8 +341,11 @@ static inline int crypto_akcipher_encrypt(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
int ret;
return alg->encrypt(req);
ret = alg->encrypt(req);
crypto_stat_akcipher_encrypt(req, ret);
return ret;
}
/**
@ -303,8 +362,11 @@ static inline int crypto_akcipher_decrypt(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
int ret;
return alg->decrypt(req);
ret = alg->decrypt(req);
crypto_stat_akcipher_decrypt(req, ret);
return ret;
}
/**
@ -321,8 +383,11 @@ static inline int crypto_akcipher_sign(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
int ret;
return alg->sign(req);
ret = alg->sign(req);
crypto_stat_akcipher_sign(req, ret);
return ret;
}
/**
@ -339,8 +404,11 @@ static inline int crypto_akcipher_verify(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
int ret;
return alg->verify(req);
ret = alg->verify(req);
crypto_stat_akcipher_verify(req, ret);
return ret;
}
/**

32
include/crypto/hash.h
View File

@ -412,6 +412,32 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
unsigned int keylen);
static inline void crypto_stat_ahash_update(struct ahash_request *req, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY)
atomic_inc(&tfm->base.__crt_alg->hash_err_cnt);
else
atomic64_add(req->nbytes, &tfm->base.__crt_alg->hash_tlen);
#endif
}
static inline void crypto_stat_ahash_final(struct ahash_request *req, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->hash_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->hash_cnt);
atomic64_add(req->nbytes, &tfm->base.__crt_alg->hash_tlen);
}
#endif
}
/**
* crypto_ahash_finup() - update and finalize message digest
* @req: reference to the ahash_request handle that holds all information
@ -526,7 +552,11 @@ static inline int crypto_ahash_init(struct ahash_request *req)
*/
static inline int crypto_ahash_update(struct ahash_request *req)
{
return crypto_ahash_reqtfm(req)->update(req);
int ret;
ret = crypto_ahash_reqtfm(req)->update(req);
crypto_stat_ahash_update(req, ret);
return ret;
}
/**

8
include/crypto/internal/cryptouser.h Normal file
View File

@ -0,0 +1,8 @@
/* SPDX-License-Identifier: GPL-2.0 */
#include <net/netlink.h>
struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact);
int crypto_dump_reportstat(struct sk_buff *skb, struct netlink_callback *cb);
int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs);
int crypto_dump_reportstat_done(struct netlink_callback *cb);

51
include/crypto/kpp.h
View File

@ -268,6 +268,42 @@ struct kpp_secret {
unsigned short len;
};
static inline void crypto_stat_kpp_set_secret(struct crypto_kpp *tfm, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
if (ret)
atomic_inc(&tfm->base.__crt_alg->kpp_err_cnt);
else
atomic_inc(&tfm->base.__crt_alg->setsecret_cnt);
#endif
}
static inline void crypto_stat_kpp_generate_public_key(struct kpp_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
if (ret)
atomic_inc(&tfm->base.__crt_alg->kpp_err_cnt);
else
atomic_inc(&tfm->base.__crt_alg->generate_public_key_cnt);
#endif
}
static inline void crypto_stat_kpp_compute_shared_secret(struct kpp_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
if (ret)
atomic_inc(&tfm->base.__crt_alg->kpp_err_cnt);
else
atomic_inc(&tfm->base.__crt_alg->compute_shared_secret_cnt);
#endif
}
/**
* crypto_kpp_set_secret() - Invoke kpp operation
*
@ -287,8 +323,11 @@ static inline int crypto_kpp_set_secret(struct crypto_kpp *tfm,
const void *buffer, unsigned int len)
{
struct kpp_alg *alg = crypto_kpp_alg(tfm);
int ret;
return alg->set_secret(tfm, buffer, len);
ret = alg->set_secret(tfm, buffer, len);
crypto_stat_kpp_set_secret(tfm, ret);
return ret;
}
/**
@ -308,8 +347,11 @@ static inline int crypto_kpp_generate_public_key(struct kpp_request *req)
{
struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
struct kpp_alg *alg = crypto_kpp_alg(tfm);
int ret;
return alg->generate_public_key(req);
ret = alg->generate_public_key(req);
crypto_stat_kpp_generate_public_key(req, ret);
return ret;
}
/**
@ -326,8 +368,11 @@ static inline int crypto_kpp_compute_shared_secret(struct kpp_request *req)
{
struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
struct kpp_alg *alg = crypto_kpp_alg(tfm);
int ret;
return alg->compute_shared_secret(req);
ret = alg->compute_shared_secret(req);
crypto_stat_kpp_compute_shared_secret(req, ret);
return ret;
}
/**

29
include/crypto/rng.h
View File

@ -122,6 +122,29 @@ static inline void crypto_free_rng(struct crypto_rng *tfm)
crypto_destroy_tfm(tfm, crypto_rng_tfm(tfm));
}
static inline void crypto_stat_rng_seed(struct crypto_rng *tfm, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
if (ret && ret != -EINPROGRESS && ret != -EBUSY)
atomic_inc(&tfm->base.__crt_alg->rng_err_cnt);
else
atomic_inc(&tfm->base.__crt_alg->seed_cnt);
#endif
}
static inline void crypto_stat_rng_generate(struct crypto_rng *tfm,
unsigned int dlen, int ret)
{
#ifdef CONFIG_CRYPTO_STATS
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&tfm->base.__crt_alg->rng_err_cnt);
} else {
atomic_inc(&tfm->base.__crt_alg->generate_cnt);
atomic64_add(dlen, &tfm->base.__crt_alg->generate_tlen);
}
#endif
}
/**
* crypto_rng_generate() - get random number
* @tfm: cipher handle
@ -140,7 +163,11 @@ static inline int crypto_rng_generate(struct crypto_rng *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int dlen)
{
return crypto_rng_alg(tfm)->generate(tfm, src, slen, dst, dlen);
int ret;
ret = crypto_rng_alg(tfm)->generate(tfm, src, slen, dst, dlen);
crypto_stat_rng_generate(tfm, dlen, ret);
return ret;
}
/**

44
include/crypto/skcipher.h
View File

@ -486,6 +486,32 @@ static inline struct crypto_sync_skcipher *crypto_sync_skcipher_reqtfm(
return container_of(tfm, struct crypto_sync_skcipher, base);
}
static inline void crypto_stat_skcipher_encrypt(struct skcipher_request *req,
int ret, struct crypto_alg *alg)
{
#ifdef CONFIG_CRYPTO_STATS
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&alg->cipher_err_cnt);
} else {
atomic_inc(&alg->encrypt_cnt);
atomic64_add(req->cryptlen, &alg->encrypt_tlen);
}
#endif
}
static inline void crypto_stat_skcipher_decrypt(struct skcipher_request *req,
int ret, struct crypto_alg *alg)
{
#ifdef CONFIG_CRYPTO_STATS
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&alg->cipher_err_cnt);
} else {
atomic_inc(&alg->decrypt_cnt);
atomic64_add(req->cryptlen, &alg->decrypt_tlen);
}
#endif
}
/**
* crypto_skcipher_encrypt() - encrypt plaintext
* @req: reference to the skcipher_request handle that holds all information
@ -500,11 +526,14 @@ static inline struct crypto_sync_skcipher *crypto_sync_skcipher_reqtfm(
static inline int crypto_skcipher_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
int ret;
if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
return -ENOKEY;
return tfm->encrypt(req);
ret = -ENOKEY;
else
ret = tfm->encrypt(req);
crypto_stat_skcipher_encrypt(req, ret, tfm->base.__crt_alg);
return ret;
}
/**
@ -521,11 +550,14 @@ static inline int crypto_skcipher_encrypt(struct skcipher_request *req)
static inline int crypto_skcipher_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
int ret;
if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
return -ENOKEY;
return tfm->decrypt(req);
ret = -ENOKEY;
else
ret = tfm->decrypt(req);
crypto_stat_skcipher_decrypt(req, ret, tfm->base.__crt_alg);
return ret;
}
/**

110
include/linux/crypto.h
View File

@ -454,6 +454,33 @@ struct compress_alg {
* @cra_refcnt: internally used
* @cra_destroy: internally used
*
* All following statistics are for this crypto_alg
* @encrypt_cnt: number of encrypt requests
* @decrypt_cnt: number of decrypt requests
* @compress_cnt: number of compress requests
* @decompress_cnt: number of decompress requests
* @generate_cnt: number of RNG generate requests
* @seed_cnt: number of times the rng was seeded
* @hash_cnt: number of hash requests
* @sign_cnt: number of sign requests
* @setsecret_cnt: number of setsecrey operation
* @generate_public_key_cnt: number of generate_public_key operation
* @verify_cnt: number of verify operation
* @compute_shared_secret_cnt: number of compute_shared_secret operation
* @encrypt_tlen: total data size handled by encrypt requests
* @decrypt_tlen: total data size handled by decrypt requests
* @compress_tlen: total data size handled by compress requests
* @decompress_tlen: total data size handled by decompress requests
* @generate_tlen: total data size of generated data by the RNG
* @hash_tlen: total data size hashed
* @akcipher_err_cnt: number of error for akcipher requests
* @cipher_err_cnt: number of error for akcipher requests
* @compress_err_cnt: number of error for akcipher requests
* @aead_err_cnt: number of error for akcipher requests
* @hash_err_cnt: number of error for akcipher requests
* @rng_err_cnt: number of error for akcipher requests
* @kpp_err_cnt: number of error for akcipher requests
*
* The struct crypto_alg describes a generic Crypto API algorithm and is common
* for all of the transformations. Any variable not documented here shall not
* be used by a cipher implementation as it is internal to the Crypto API.
@ -487,6 +514,45 @@ struct crypto_alg {
void (*cra_destroy)(struct crypto_alg *alg);
struct module *cra_module;
union {
atomic_t encrypt_cnt;
atomic_t compress_cnt;
atomic_t generate_cnt;
atomic_t hash_cnt;
atomic_t setsecret_cnt;
};
union {
atomic64_t encrypt_tlen;
atomic64_t compress_tlen;
atomic64_t generate_tlen;
atomic64_t hash_tlen;
};
union {
atomic_t akcipher_err_cnt;
atomic_t cipher_err_cnt;
atomic_t compress_err_cnt;
atomic_t aead_err_cnt;
atomic_t hash_err_cnt;
atomic_t rng_err_cnt;
atomic_t kpp_err_cnt;
};
union {
atomic_t decrypt_cnt;
atomic_t decompress_cnt;
atomic_t seed_cnt;
atomic_t generate_public_key_cnt;
};
union {
atomic64_t decrypt_tlen;
atomic64_t decompress_tlen;
};
union {
atomic_t verify_cnt;
atomic_t compute_shared_secret_cnt;
};
atomic_t sign_cnt;
} CRYPTO_MINALIGN_ATTR;
/*
@ -907,6 +973,38 @@ static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
return __crypto_ablkcipher_cast(req->base.tfm);
}
static inline void crypto_stat_ablkcipher_encrypt(struct ablkcipher_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct ablkcipher_tfm *crt =
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&crt->base->base.__crt_alg->cipher_err_cnt);
} else {
atomic_inc(&crt->base->base.__crt_alg->encrypt_cnt);
atomic64_add(req->nbytes, &crt->base->base.__crt_alg->encrypt_tlen);
}
#endif
}
static inline void crypto_stat_ablkcipher_decrypt(struct ablkcipher_request *req,
int ret)
{
#ifdef CONFIG_CRYPTO_STATS
struct ablkcipher_tfm *crt =
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
atomic_inc(&crt->base->base.__crt_alg->cipher_err_cnt);
} else {
atomic_inc(&crt->base->base.__crt_alg->decrypt_cnt);
atomic64_add(req->nbytes, &crt->base->base.__crt_alg->decrypt_tlen);
}
#endif
}
/**
* crypto_ablkcipher_encrypt() - encrypt plaintext
* @req: reference to the ablkcipher_request handle that holds all information
@ -922,7 +1020,11 @@ static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
{
struct ablkcipher_tfm *crt =
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
return crt->encrypt(req);
int ret;
ret = crt->encrypt(req);
crypto_stat_ablkcipher_encrypt(req, ret);
return ret;
}
/**
@ -940,7 +1042,11 @@ static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
{
struct ablkcipher_tfm *crt =
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
return crt->decrypt(req);
int ret;
ret = crt->decrypt(req);
crypto_stat_ablkcipher_decrypt(req, ret);
return ret;
}
/**

52
include/uapi/linux/cryptouser.h
View File

@ -29,6 +29,7 @@ enum {
CRYPTO_MSG_UPDATEALG,
CRYPTO_MSG_GETALG,
CRYPTO_MSG_DELRNG,
CRYPTO_MSG_GETSTAT,
__CRYPTO_MSG_MAX
};
#define CRYPTO_MSG_MAX (__CRYPTO_MSG_MAX - 1)
@ -50,6 +51,16 @@ enum crypto_attr_type_t {
CRYPTOCFGA_REPORT_AKCIPHER, /* struct crypto_report_akcipher */
CRYPTOCFGA_REPORT_KPP, /* struct crypto_report_kpp */
CRYPTOCFGA_REPORT_ACOMP, /* struct crypto_report_acomp */
CRYPTOCFGA_STAT_LARVAL, /* struct crypto_stat */
CRYPTOCFGA_STAT_HASH, /* struct crypto_stat */
CRYPTOCFGA_STAT_BLKCIPHER, /* struct crypto_stat */
CRYPTOCFGA_STAT_AEAD, /* struct crypto_stat */
CRYPTOCFGA_STAT_COMPRESS, /* struct crypto_stat */
CRYPTOCFGA_STAT_RNG, /* struct crypto_stat */
CRYPTOCFGA_STAT_CIPHER, /* struct crypto_stat */
CRYPTOCFGA_STAT_AKCIPHER, /* struct crypto_stat */
CRYPTOCFGA_STAT_KPP, /* struct crypto_stat */
CRYPTOCFGA_STAT_ACOMP, /* struct crypto_stat */
__CRYPTOCFGA_MAX
#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
@ -65,6 +76,47 @@ struct crypto_user_alg {
__u32 cru_flags;
};
struct crypto_stat {
char type[CRYPTO_MAX_NAME];
union {
__u32 stat_encrypt_cnt;
__u32 stat_compress_cnt;
__u32 stat_generate_cnt;
__u32 stat_hash_cnt;
__u32 stat_setsecret_cnt;
};
union {
__u64 stat_encrypt_tlen;
__u64 stat_compress_tlen;
__u64 stat_generate_tlen;
__u64 stat_hash_tlen;
};
union {
__u32 stat_akcipher_err_cnt;
__u32 stat_cipher_err_cnt;
__u32 stat_compress_err_cnt;
__u32 stat_aead_err_cnt;
__u32 stat_hash_err_cnt;
__u32 stat_rng_err_cnt;
__u32 stat_kpp_err_cnt;
};
union {
__u32 stat_decrypt_cnt;
__u32 stat_decompress_cnt;
__u32 stat_seed_cnt;
__u32 stat_generate_public_key_cnt;
};
union {
__u64 stat_decrypt_tlen;
__u64 stat_decompress_tlen;
};
union {
__u32 stat_verify_cnt;
__u32 stat_compute_shared_secret_cnt;
};
__u32 stat_sign_cnt;
};
struct crypto_report_larval {
char type[CRYPTO_MAX_NAME];
};