From: Eric Biggers <[email protected]>
Remove support for the "Crypto usage statistics" feature
(CONFIG_CRYPTO_STATS). This feature does not appear to have ever been
used, and it is harmful because it significantly reduces performance and
is a large maintenance burden.
Covering each of these points in detail:
1. Feature is not being used
Since these generic crypto statistics are only readable using netlink,
it's fairly straightforward to look for programs that use them. I'm
unable to find any evidence that any such programs exist. For example,
Debian Code Search returns no hits except the kernel header and kernel
code itself and translations of the kernel header:
https://codesearch.debian.net/search?q=CRYPTOCFGA_STAT&literal=1&perpkg=1
The patch series that added this feature in 2018
(https://lore.kernel.org/linux-crypto/[email protected]/)
said "The goal is to have an ifconfig for crypto device." This doesn't
appear to have happened.
It's not clear that there is real demand for crypto statistics. Just
because the kernel provides other types of statistics such as I/O and
networking statistics and some people find those useful does not mean
that crypto statistics are useful too.
Further evidence that programs are not using CONFIG_CRYPTO_STATS is that
it was able to be disabled in RHEL and Fedora as a bug fix
(https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/2947).
Even further evidence comes from the fact that there are and have been
bugs in how the stats work, but they were never reported. For example,
before Linux v6.7 hash stats were double-counted in most cases.
There has also never been any documentation for this feature, so it
might be hard to use even if someone wanted to.
2. CONFIG_CRYPTO_STATS significantly reduces performance
Enabling CONFIG_CRYPTO_STATS significantly reduces the performance of
the crypto API, even if no program ever retrieves the statistics. This
primarily affects systems with large number of CPUs. For example,
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2039576 reported
that Lustre client encryption performance improved from 21.7GB/s to
48.2GB/s by disabling CONFIG_CRYPTO_STATS.
It can be argued that this means that CONFIG_CRYPTO_STATS should be
optimized with per-cpu counters similar to many of the networking
counters. But no one has done this in 5+ years. This is consistent
with the fact that the feature appears to be unused, so there seems to
be little interest in improving it as opposed to just disabling it.
It can be argued that because CONFIG_CRYPTO_STATS is off by default,
performance doesn't matter. But Linux distros tend to error on the side
of enabling options. The option is enabled in Ubuntu and Arch Linux,
and until recently was enabled in RHEL and Fedora (see above). So, even
just having the option available is harmful to users.
3. CONFIG_CRYPTO_STATS is a large maintenance burden
There are over 1000 lines of code associated with CONFIG_CRYPTO_STATS,
spread among 32 files. It significantly complicates much of the
implementation of the crypto API. After the initial submission, many
fixes and refactorings have consumed effort of multiple people to keep
this feature "working". We should be spending this effort elsewhere.
Cc: Corentin Labbe <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
---
arch/s390/configs/debug_defconfig | 1 -
arch/s390/configs/defconfig | 1 -
crypto/Kconfig | 20 ---
crypto/Makefile | 2 -
crypto/acompress.c | 47 +----
crypto/aead.c | 84 +--------
crypto/ahash.c | 63 +------
crypto/akcipher.c | 31 ----
crypto/compress.h | 5 -
crypto/{crypto_user_base.c => crypto_user.c} | 10 +-
crypto/crypto_user_stat.c | 176 -------------------
crypto/hash.h | 30 ----
crypto/kpp.c | 30 ----
crypto/lskcipher.c | 73 +-------
crypto/rng.c | 44 +----
crypto/scompress.c | 8 +-
crypto/shash.c | 75 +-------
crypto/sig.c | 13 --
crypto/skcipher.c | 86 +--------
crypto/skcipher.h | 10 --
include/crypto/acompress.h | 90 +---------
include/crypto/aead.h | 21 ---
include/crypto/akcipher.h | 78 +-------
include/crypto/algapi.h | 3 -
include/crypto/hash.h | 22 ---
include/crypto/internal/acompress.h | 7 +-
include/crypto/internal/cryptouser.h | 16 --
include/crypto/internal/scompress.h | 8 +-
include/crypto/kpp.h | 58 +-----
include/crypto/rng.h | 51 +-----
include/crypto/skcipher.h | 25 ---
include/uapi/linux/cryptouser.h | 28 +--
32 files changed, 77 insertions(+), 1139 deletions(-)
rename crypto/{crypto_user_base.c => crypto_user.c} (98%)
delete mode 100644 crypto/crypto_user_stat.c
delete mode 100644 include/crypto/internal/cryptouser.h
diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
index cae2dd34fbb49..063f0c11087dd 100644
--- a/arch/s390/configs/debug_defconfig
+++ b/arch/s390/configs/debug_defconfig
@@ -759,21 +759,20 @@ CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
CONFIG_CRYPTO_ZSTD=m
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
-CONFIG_CRYPTO_STATS=y
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_CHACHA_S390=m
diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
index 42b988873e544..ab608ce768b7b 100644
--- a/arch/s390/configs/defconfig
+++ b/arch/s390/configs/defconfig
@@ -745,21 +745,20 @@ CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
CONFIG_CRYPTO_ZSTD=m
CONFIG_CRYPTO_ANSI_CPRNG=m
CONFIG_CRYPTO_USER_API_HASH=m
CONFIG_CRYPTO_USER_API_SKCIPHER=m
CONFIG_CRYPTO_USER_API_RNG=m
CONFIG_CRYPTO_USER_API_AEAD=m
-CONFIG_CRYPTO_STATS=y
CONFIG_CRYPTO_CRC32_S390=y
CONFIG_CRYPTO_SHA512_S390=m
CONFIG_CRYPTO_SHA1_S390=m
CONFIG_CRYPTO_SHA256_S390=m
CONFIG_CRYPTO_SHA3_256_S390=m
CONFIG_CRYPTO_SHA3_512_S390=m
CONFIG_CRYPTO_GHASH_S390=m
CONFIG_CRYPTO_AES_S390=m
CONFIG_CRYPTO_DES_S390=m
CONFIG_CRYPTO_CHACHA_S390=m
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 7d156c75f15f2..4980b1ceb21f6 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1448,40 +1448,20 @@ config CRYPTO_USER_API_AEAD
config CRYPTO_USER_API_ENABLE_OBSOLETE
bool "Obsolete cryptographic algorithms"
depends on CRYPTO_USER_API
default y
help
Allow obsolete cryptographic algorithms to be selected that have
already been phased out from internal use by the kernel, and are
only useful for userspace clients that still rely on them.
-config CRYPTO_STATS
- bool "Crypto usage statistics"
- depends on CRYPTO_USER
- help
- Enable the gathering of crypto stats.
-
- Enabling this option reduces the performance of the crypto API. It
- should only be enabled when there is actually a use case for it.
-
- This collects data sizes, numbers of requests, and numbers
- of errors processed by:
- - AEAD ciphers (encrypt, decrypt)
- - asymmetric key ciphers (encrypt, decrypt, verify, sign)
- - symmetric key ciphers (encrypt, decrypt)
- - compression algorithms (compress, decompress)
- - hash algorithms (hash)
- - key-agreement protocol primitives (setsecret, generate
- public key, compute shared secret)
- - RNG (generate, seed)
-
endmenu
config CRYPTO_HASH_INFO
bool
if !KMSAN # avoid false positives from assembly
if ARM
source "arch/arm/crypto/Kconfig"
endif
if ARM64
diff --git a/crypto/Makefile b/crypto/Makefile
index 408f0a1f9ab91..de9a3312a2c84 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -62,22 +62,20 @@ ecdsa_generic-y += ecdsasignature.asn1.o
obj-$(CONFIG_CRYPTO_ECDSA) += ecdsa_generic.o
crypto_acompress-y := acompress.o
crypto_acompress-y += scompress.o
obj-$(CONFIG_CRYPTO_ACOMP2) += crypto_acompress.o
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-$(CONFIG_CRYPTO_STATS) += crypto_user_stat.o
obj-$(CONFIG_CRYPTO_CMAC) += cmac.o
obj-$(CONFIG_CRYPTO_HMAC) += hmac.o
obj-$(CONFIG_CRYPTO_VMAC) += vmac.o
obj-$(CONFIG_CRYPTO_XCBC) += xcbc.o
obj-$(CONFIG_CRYPTO_NULL2) += crypto_null.o
obj-$(CONFIG_CRYPTO_MD4) += md4.o
obj-$(CONFIG_CRYPTO_MD5) += md5.o
obj-$(CONFIG_CRYPTO_RMD160) += rmd160.o
obj-$(CONFIG_CRYPTO_SHA1) += sha1_generic.o
obj-$(CONFIG_CRYPTO_SHA256) += sha256_generic.o
diff --git a/crypto/acompress.c b/crypto/acompress.c
index 1c682810a484d..484a865b23cd8 100644
--- a/crypto/acompress.c
+++ b/crypto/acompress.c
@@ -18,21 +18,21 @@
#include <net/netlink.h>
#include "compress.h"
struct crypto_scomp;
static const struct crypto_type crypto_acomp_type;
static inline struct acomp_alg *__crypto_acomp_alg(struct crypto_alg *alg)
{
- return container_of(alg, struct acomp_alg, calg.base);
+ return container_of(alg, struct acomp_alg, base);
}
static inline struct acomp_alg *crypto_acomp_alg(struct crypto_acomp *tfm)
{
return __crypto_acomp_alg(crypto_acomp_tfm(tfm)->__crt_alg);
}
static int __maybe_unused crypto_acomp_report(
struct sk_buff *skb, struct crypto_alg *alg)
{
@@ -86,57 +86,28 @@ static int crypto_acomp_init_tfm(struct crypto_tfm *tfm)
static unsigned int crypto_acomp_extsize(struct crypto_alg *alg)
{
int extsize = crypto_alg_extsize(alg);
if (alg->cra_type != &crypto_acomp_type)
extsize += sizeof(struct crypto_scomp *);
return extsize;
}
-static inline int __crypto_acomp_report_stat(struct sk_buff *skb,
- struct crypto_alg *alg)
-{
- struct comp_alg_common *calg = __crypto_comp_alg_common(alg);
- struct crypto_istat_compress *istat = comp_get_stat(calg);
- struct crypto_stat_compress racomp;
-
- memset(&racomp, 0, sizeof(racomp));
-
- strscpy(racomp.type, "acomp", sizeof(racomp.type));
- racomp.stat_compress_cnt = atomic64_read(&istat->compress_cnt);
- racomp.stat_compress_tlen = atomic64_read(&istat->compress_tlen);
- racomp.stat_decompress_cnt = atomic64_read(&istat->decompress_cnt);
- racomp.stat_decompress_tlen = atomic64_read(&istat->decompress_tlen);
- racomp.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_ACOMP, sizeof(racomp), &racomp);
-}
-
-#ifdef CONFIG_CRYPTO_STATS
-int crypto_acomp_report_stat(struct sk_buff *skb, struct crypto_alg *alg)
-{
- return __crypto_acomp_report_stat(skb, alg);
-}
-#endif
-
static const struct crypto_type crypto_acomp_type = {
.extsize = crypto_acomp_extsize,
.init_tfm = crypto_acomp_init_tfm,
#ifdef CONFIG_PROC_FS
.show = crypto_acomp_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_acomp_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_acomp_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_ACOMPRESS_MASK,
.type = CRYPTO_ALG_TYPE_ACOMPRESS,
.tfmsize = offsetof(struct crypto_acomp, base),
};
struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
u32 mask)
{
@@ -175,38 +146,26 @@ void acomp_request_free(struct acomp_req *req)
if (req->flags & CRYPTO_ACOMP_ALLOC_OUTPUT) {
acomp->dst_free(req->dst);
req->dst = NULL;
}
__acomp_request_free(req);
}
EXPORT_SYMBOL_GPL(acomp_request_free);
-void comp_prepare_alg(struct comp_alg_common *alg)
-{
- struct crypto_istat_compress *istat = comp_get_stat(alg);
- struct crypto_alg *base = &alg->base;
-
- base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- memset(istat, 0, sizeof(*istat));
-}
-
int crypto_register_acomp(struct acomp_alg *alg)
{
- struct crypto_alg *base = &alg->calg.base;
-
- comp_prepare_alg(&alg->calg);
+ struct crypto_alg *base = &alg->base;
base->cra_type = &crypto_acomp_type;
+ base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_ACOMPRESS;
return crypto_register_alg(base);
}
EXPORT_SYMBOL_GPL(crypto_register_acomp);
void crypto_unregister_acomp(struct acomp_alg *alg)
{
crypto_unregister_alg(&alg->base);
}
diff --git a/crypto/aead.c b/crypto/aead.c
index 54906633566a2..0e75a69189df4 100644
--- a/crypto/aead.c
+++ b/crypto/aead.c
@@ -13,29 +13,20 @@
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <net/netlink.h>
#include "internal.h"
-static inline struct crypto_istat_aead *aead_get_stat(struct aead_alg *alg)
-{
-#ifdef CONFIG_CRYPTO_STATS
- return &alg->stat;
-#else
- return NULL;
-#endif
-}
-
static int setkey_unaligned(struct crypto_aead *tfm, const u8 *key,
unsigned int keylen)
{
unsigned long alignmask = crypto_aead_alignmask(tfm);
int ret;
u8 *buffer, *alignbuffer;
unsigned long absize;
absize = keylen + alignmask;
buffer = kmalloc(absize, GFP_ATOMIC);
@@ -83,76 +74,42 @@ int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
err = crypto_aead_alg(tfm)->setauthsize(tfm, authsize);
if (err)
return err;
}
tfm->authsize = authsize;
return 0;
}
EXPORT_SYMBOL_GPL(crypto_aead_setauthsize);
-static inline int crypto_aead_errstat(struct crypto_istat_aead *istat, int err)
-{
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err && err != -EINPROGRESS && err != -EBUSY)
- atomic64_inc(&istat->err_cnt);
-
- return err;
-}
-
int crypto_aead_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
- struct aead_alg *alg = crypto_aead_alg(aead);
- struct crypto_istat_aead *istat;
- int ret;
-
- istat = aead_get_stat(alg);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- atomic64_inc(&istat->encrypt_cnt);
- atomic64_add(req->cryptlen, &istat->encrypt_tlen);
- }
if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
- ret = -ENOKEY;
- else
- ret = alg->encrypt(req);
+ return -ENOKEY;
- return crypto_aead_errstat(istat, ret);
+ return crypto_aead_alg(aead)->encrypt(req);
}
EXPORT_SYMBOL_GPL(crypto_aead_encrypt);
int crypto_aead_decrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
- struct aead_alg *alg = crypto_aead_alg(aead);
- struct crypto_istat_aead *istat;
- int ret;
-
- istat = aead_get_stat(alg);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- atomic64_inc(&istat->encrypt_cnt);
- atomic64_add(req->cryptlen, &istat->encrypt_tlen);
- }
if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
- ret = -ENOKEY;
- else if (req->cryptlen < crypto_aead_authsize(aead))
- ret = -EINVAL;
- else
- ret = alg->decrypt(req);
+ return -ENOKEY;
+
+ if (req->cryptlen < crypto_aead_authsize(aead))
+ return -EINVAL;
- return crypto_aead_errstat(istat, ret);
+ return crypto_aead_alg(aead)->decrypt(req);
}
EXPORT_SYMBOL_GPL(crypto_aead_decrypt);
static void crypto_aead_exit_tfm(struct crypto_tfm *tfm)
{
struct crypto_aead *aead = __crypto_aead_cast(tfm);
struct aead_alg *alg = crypto_aead_alg(aead);
alg->exit(aead);
}
@@ -208,52 +165,29 @@ static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg)
seq_printf(m, "geniv : <none>\n");
}
static void crypto_aead_free_instance(struct crypto_instance *inst)
{
struct aead_instance *aead = aead_instance(inst);
aead->free(aead);
}
-static int __maybe_unused crypto_aead_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct aead_alg *aead = container_of(alg, struct aead_alg, base);
- struct crypto_istat_aead *istat = aead_get_stat(aead);
- struct crypto_stat_aead raead;
-
- memset(&raead, 0, sizeof(raead));
-
- strscpy(raead.type, "aead", sizeof(raead.type));
-
- raead.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
- raead.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
- raead.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
- raead.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
- raead.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_AEAD, sizeof(raead), &raead);
-}
-
static const struct crypto_type crypto_aead_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_aead_init_tfm,
.free = crypto_aead_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_aead_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_aead_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_aead_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_MASK,
.type = CRYPTO_ALG_TYPE_AEAD,
.tfmsize = offsetof(struct crypto_aead, base),
};
int crypto_grab_aead(struct crypto_aead_spawn *spawn,
struct crypto_instance *inst,
const char *name, u32 type, u32 mask)
@@ -270,37 +204,33 @@ struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask)
EXPORT_SYMBOL_GPL(crypto_alloc_aead);
int crypto_has_aead(const char *alg_name, u32 type, u32 mask)
{
return crypto_type_has_alg(alg_name, &crypto_aead_type, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_has_aead);
static int aead_prepare_alg(struct aead_alg *alg)
{
- struct crypto_istat_aead *istat = aead_get_stat(alg);
struct crypto_alg *base = &alg->base;
if (max3(alg->maxauthsize, alg->ivsize, alg->chunksize) >
PAGE_SIZE / 8)
return -EINVAL;
if (!alg->chunksize)
alg->chunksize = base->cra_blocksize;
base->cra_type = &crypto_aead_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_AEAD;
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- memset(istat, 0, sizeof(*istat));
-
return 0;
}
int crypto_register_aead(struct aead_alg *alg)
{
struct crypto_alg *base = &alg->base;
int err;
err = aead_prepare_alg(alg);
if (err)
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 0ac83f7f701df..bcd9de009a91b 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -20,36 +20,20 @@
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <net/netlink.h>
#include "hash.h"
#define CRYPTO_ALG_TYPE_AHASH_MASK 0x0000000e
-static inline struct crypto_istat_hash *ahash_get_stat(struct ahash_alg *alg)
-{
- return hash_get_stat(&alg->halg);
-}
-
-static inline int crypto_ahash_errstat(struct ahash_alg *alg, int err)
-{
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err && err != -EINPROGRESS && err != -EBUSY)
- atomic64_inc(&ahash_get_stat(alg)->err_cnt);
-
- return err;
-}
-
/*
* For an ahash tfm that is using an shash algorithm (instead of an ahash
* algorithm), this returns the underlying shash tfm.
*/
static inline struct crypto_shash *ahash_to_shash(struct crypto_ahash *tfm)
{
return *(struct crypto_shash **)crypto_ahash_ctx(tfm);
}
static inline struct shash_desc *prepare_shash_desc(struct ahash_request *req,
@@ -337,89 +321,61 @@ static void ahash_restore_req(struct ahash_request *req, int err)
crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
req->priv = NULL;
kfree_sensitive(subreq);
}
int crypto_ahash_update(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ahash_alg *alg;
if (likely(tfm->using_shash))
return shash_ahash_update(req, ahash_request_ctx(req));
- alg = crypto_ahash_alg(tfm);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_add(req->nbytes, &ahash_get_stat(alg)->hash_tlen);
- return crypto_ahash_errstat(alg, alg->update(req));
+ return crypto_ahash_alg(tfm)->update(req);
}
EXPORT_SYMBOL_GPL(crypto_ahash_update);
int crypto_ahash_final(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ahash_alg *alg;
if (likely(tfm->using_shash))
return crypto_shash_final(ahash_request_ctx(req), req->result);
- alg = crypto_ahash_alg(tfm);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&ahash_get_stat(alg)->hash_cnt);
- return crypto_ahash_errstat(alg, alg->final(req));
+ return crypto_ahash_alg(tfm)->final(req);
}
EXPORT_SYMBOL_GPL(crypto_ahash_final);
int crypto_ahash_finup(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ahash_alg *alg;
if (likely(tfm->using_shash))
return shash_ahash_finup(req, ahash_request_ctx(req));
- alg = crypto_ahash_alg(tfm);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_hash *istat = ahash_get_stat(alg);
-
- atomic64_inc(&istat->hash_cnt);
- atomic64_add(req->nbytes, &istat->hash_tlen);
- }
- return crypto_ahash_errstat(alg, alg->finup(req));
+ return crypto_ahash_alg(tfm)->finup(req);
}
EXPORT_SYMBOL_GPL(crypto_ahash_finup);
int crypto_ahash_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ahash_alg *alg;
- int err;
if (likely(tfm->using_shash))
return shash_ahash_digest(req, prepare_shash_desc(req, tfm));
- alg = crypto_ahash_alg(tfm);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_hash *istat = ahash_get_stat(alg);
-
- atomic64_inc(&istat->hash_cnt);
- atomic64_add(req->nbytes, &istat->hash_tlen);
- }
-
if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
- err = -ENOKEY;
- else
- err = alg->digest(req);
+ return -ENOKEY;
- return crypto_ahash_errstat(alg, err);
+ return crypto_ahash_alg(tfm)->digest(req);
}
EXPORT_SYMBOL_GPL(crypto_ahash_digest);
static void ahash_def_finup_done2(void *data, int err)
{
struct ahash_request *areq = data;
if (err == -EINPROGRESS)
return;
@@ -564,38 +520,29 @@ static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
{
seq_printf(m, "type : ahash\n");
seq_printf(m, "async : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
"yes" : "no");
seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
seq_printf(m, "digestsize : %u\n",
__crypto_hash_alg_common(alg)->digestsize);
}
-static int __maybe_unused crypto_ahash_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- return crypto_hash_report_stat(skb, alg, "ahash");
-}
-
static const struct crypto_type crypto_ahash_type = {
.extsize = crypto_ahash_extsize,
.init_tfm = crypto_ahash_init_tfm,
.free = crypto_ahash_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_ahash_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_ahash_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_ahash_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_AHASH_MASK,
.type = CRYPTO_ALG_TYPE_AHASH,
.tfmsize = offsetof(struct crypto_ahash, base),
};
int crypto_grab_ahash(struct crypto_ahash_spawn *spawn,
struct crypto_instance *inst,
const char *name, u32 type, u32 mask)
diff --git a/crypto/akcipher.c b/crypto/akcipher.c
index 52813f0b19e4e..e0ff5f4dda6d6 100644
--- a/crypto/akcipher.c
+++ b/crypto/akcipher.c
@@ -63,56 +63,29 @@ static int crypto_akcipher_init_tfm(struct crypto_tfm *tfm)
return 0;
}
static void crypto_akcipher_free_instance(struct crypto_instance *inst)
{
struct akcipher_instance *akcipher = akcipher_instance(inst);
akcipher->free(akcipher);
}
-static int __maybe_unused crypto_akcipher_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct akcipher_alg *akcipher = __crypto_akcipher_alg(alg);
- struct crypto_istat_akcipher *istat;
- struct crypto_stat_akcipher rakcipher;
-
- istat = akcipher_get_stat(akcipher);
-
- memset(&rakcipher, 0, sizeof(rakcipher));
-
- strscpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
- rakcipher.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
- rakcipher.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
- rakcipher.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
- rakcipher.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
- rakcipher.stat_sign_cnt = atomic64_read(&istat->sign_cnt);
- rakcipher.stat_verify_cnt = atomic64_read(&istat->verify_cnt);
- rakcipher.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER,
- sizeof(rakcipher), &rakcipher);
-}
-
static const struct crypto_type crypto_akcipher_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_akcipher_init_tfm,
.free = crypto_akcipher_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_akcipher_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_akcipher_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_akcipher_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_AHASH_MASK,
.type = CRYPTO_ALG_TYPE_AKCIPHER,
.tfmsize = offsetof(struct crypto_akcipher, base),
};
int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn,
struct crypto_instance *inst,
const char *name, u32 type, u32 mask)
@@ -124,29 +97,25 @@ EXPORT_SYMBOL_GPL(crypto_grab_akcipher);
struct crypto_akcipher *crypto_alloc_akcipher(const char *alg_name, u32 type,
u32 mask)
{
return crypto_alloc_tfm(alg_name, &crypto_akcipher_type, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_alloc_akcipher);
static void akcipher_prepare_alg(struct akcipher_alg *alg)
{
- struct crypto_istat_akcipher *istat = akcipher_get_stat(alg);
struct crypto_alg *base = &alg->base;
base->cra_type = &crypto_akcipher_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_AKCIPHER;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- memset(istat, 0, sizeof(*istat));
}
static int akcipher_default_op(struct akcipher_request *req)
{
return -ENOSYS;
}
static int akcipher_default_set_key(struct crypto_akcipher *tfm,
const void *key, unsigned int keylen)
{
diff --git a/crypto/compress.h b/crypto/compress.h
index 19f65516d699c..23ea43810810c 100644
--- a/crypto/compress.h
+++ b/crypto/compress.h
@@ -5,22 +5,17 @@
* Copyright 2015 LG Electronics Inc.
* Copyright (c) 2016, Intel Corporation
* Copyright (c) 2023 Herbert Xu <[email protected]>
*/
#ifndef _LOCAL_CRYPTO_COMPRESS_H
#define _LOCAL_CRYPTO_COMPRESS_H
#include "internal.h"
struct acomp_req;
-struct comp_alg_common;
struct sk_buff;
int crypto_init_scomp_ops_async(struct crypto_tfm *tfm);
struct acomp_req *crypto_acomp_scomp_alloc_ctx(struct acomp_req *req);
void crypto_acomp_scomp_free_ctx(struct acomp_req *req);
-int crypto_acomp_report_stat(struct sk_buff *skb, struct crypto_alg *alg);
-
-void comp_prepare_alg(struct comp_alg_common *alg);
-
#endif /* _LOCAL_CRYPTO_COMPRESS_H */
diff --git a/crypto/crypto_user_base.c b/crypto/crypto_user.c
similarity index 98%
rename from crypto/crypto_user_base.c
rename to crypto/crypto_user.c
index 3fa20f12989f7..6c571834e86ad 100644
--- a/crypto/crypto_user_base.c
+++ b/crypto/crypto_user.c
@@ -11,36 +11,35 @@
#include <linux/cryptouser.h>
#include <linux/sched.h>
#include <linux/security.h>
#include <net/netlink.h>
#include <net/net_namespace.h>
#include <net/sock.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);
struct crypto_dump_info {
struct sk_buff *in_skb;
struct sk_buff *out_skb;
u32 nlmsg_seq;
u16 nlmsg_flags;
};
-struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
+static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
{
struct crypto_alg *q, *alg = NULL;
down_read(&crypto_alg_sem);
list_for_each_entry(q, &crypto_alg_list, cra_list) {
int match = 0;
if (crypto_is_larval(q))
continue;
@@ -380,20 +379,27 @@ static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh,
}
static int crypto_del_rng(struct sk_buff *skb, struct nlmsghdr *nlh,
struct nlattr **attrs)
{
if (!netlink_capable(skb, CAP_NET_ADMIN))
return -EPERM;
return crypto_del_default_rng();
}
+static int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh,
+ struct nlattr **attrs)
+{
+ /* No longer supported */
+ return -ENOTSUPP;
+}
+
#define MSGSIZE(type) sizeof(struct type)
static const int crypto_msg_min[CRYPTO_NR_MSGTYPES] = {
[CRYPTO_MSG_NEWALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[CRYPTO_MSG_DELALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[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),
};
diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c
deleted file mode 100644
index d4f3d39b51376..0000000000000
--- a/crypto/crypto_user_stat.c
+++ /dev/null
@@ -1,176 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Crypto user configuration API.
- *
- * Copyright (C) 2017-2018 Corentin Labbe <[email protected]>
- *
- */
-
-#include <crypto/algapi.h>
-#include <crypto/internal/cryptouser.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <net/netlink.h>
-#include <net/sock.h>
-
-#define null_terminated(x) (strnlen(x, sizeof(x)) < sizeof(x))
-
-struct crypto_dump_info {
- struct sk_buff *in_skb;
- struct sk_buff *out_skb;
- u32 nlmsg_seq;
- u16 nlmsg_flags;
-};
-
-static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct crypto_stat_cipher rcipher;
-
- memset(&rcipher, 0, sizeof(rcipher));
-
- strscpy(rcipher.type, "cipher", sizeof(rcipher.type));
-
- return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher);
-}
-
-static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct crypto_stat_compress rcomp;
-
- memset(&rcomp, 0, sizeof(rcomp));
-
- strscpy(rcomp.type, "compression", sizeof(rcomp.type));
-
- return nla_put(skb, CRYPTOCFGA_STAT_COMPRESS, sizeof(rcomp), &rcomp);
-}
-
-static int crypto_reportstat_one(struct crypto_alg *alg,
- struct crypto_user_alg *ualg,
- struct sk_buff *skb)
-{
- memset(ualg, 0, sizeof(*ualg));
-
- strscpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
- strscpy(ualg->cru_driver_name, alg->cra_driver_name,
- sizeof(ualg->cru_driver_name));
- strscpy(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_larval rl;
-
- memset(&rl, 0, sizeof(rl));
- strscpy(rl.type, "larval", sizeof(rl.type));
- if (nla_put(skb, CRYPTOCFGA_STAT_LARVAL, sizeof(rl), &rl))
- goto nla_put_failure;
- goto out;
- }
-
- if (alg->cra_type && alg->cra_type->report_stat) {
- if (alg->cra_type->report_stat(skb, alg))
- goto nla_put_failure;
- goto out;
- }
-
- switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
- 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;
- 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 net *net = sock_net(in_skb->sk);
- 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) {
- kfree_skb(skb);
- return err;
- }
-
- return nlmsg_unicast(net->crypto_nlsk, skb, NETLINK_CB(in_skb).portid);
-}
-
-MODULE_LICENSE("GPL");
diff --git a/crypto/hash.h b/crypto/hash.h
index 93f6ba0df263e..cf9aee07f77d4 100644
--- a/crypto/hash.h
+++ b/crypto/hash.h
@@ -1,48 +1,18 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Cryptographic API.
*
* Copyright (c) 2023 Herbert Xu <[email protected]>
*/
#ifndef _LOCAL_CRYPTO_HASH_H
#define _LOCAL_CRYPTO_HASH_H
#include <crypto/internal/hash.h>
-#include <linux/cryptouser.h>
#include "internal.h"
-static inline struct crypto_istat_hash *hash_get_stat(
- struct hash_alg_common *alg)
-{
-#ifdef CONFIG_CRYPTO_STATS
- return &alg->stat;
-#else
- return NULL;
-#endif
-}
-
-static inline int crypto_hash_report_stat(struct sk_buff *skb,
- struct crypto_alg *alg,
- const char *type)
-{
- struct hash_alg_common *halg = __crypto_hash_alg_common(alg);
- struct crypto_istat_hash *istat = hash_get_stat(halg);
- struct crypto_stat_hash rhash;
-
- memset(&rhash, 0, sizeof(rhash));
-
- strscpy(rhash.type, type, sizeof(rhash.type));
-
- rhash.stat_hash_cnt = atomic64_read(&istat->hash_cnt);
- rhash.stat_hash_tlen = atomic64_read(&istat->hash_tlen);
- rhash.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash);
-}
-
extern const struct crypto_type crypto_shash_type;
int hash_prepare_alg(struct hash_alg_common *alg);
#endif /* _LOCAL_CRYPTO_HASH_H */
diff --git a/crypto/kpp.c b/crypto/kpp.c
index 33d44e59387ff..ecc63a1a948df 100644
--- a/crypto/kpp.c
+++ b/crypto/kpp.c
@@ -59,55 +59,29 @@ static int crypto_kpp_init_tfm(struct crypto_tfm *tfm)
return 0;
}
static void crypto_kpp_free_instance(struct crypto_instance *inst)
{
struct kpp_instance *kpp = kpp_instance(inst);
kpp->free(kpp);
}
-static int __maybe_unused crypto_kpp_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct kpp_alg *kpp = __crypto_kpp_alg(alg);
- struct crypto_istat_kpp *istat;
- struct crypto_stat_kpp rkpp;
-
- istat = kpp_get_stat(kpp);
-
- memset(&rkpp, 0, sizeof(rkpp));
-
- strscpy(rkpp.type, "kpp", sizeof(rkpp.type));
-
- rkpp.stat_setsecret_cnt = atomic64_read(&istat->setsecret_cnt);
- rkpp.stat_generate_public_key_cnt =
- atomic64_read(&istat->generate_public_key_cnt);
- rkpp.stat_compute_shared_secret_cnt =
- atomic64_read(&istat->compute_shared_secret_cnt);
- rkpp.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_KPP, sizeof(rkpp), &rkpp);
-}
-
static const struct crypto_type crypto_kpp_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_kpp_init_tfm,
.free = crypto_kpp_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_kpp_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_kpp_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_kpp_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_MASK,
.type = CRYPTO_ALG_TYPE_KPP,
.tfmsize = offsetof(struct crypto_kpp, base),
};
struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask)
{
return crypto_alloc_tfm(alg_name, &crypto_kpp_type, type, mask);
@@ -124,29 +98,25 @@ int crypto_grab_kpp(struct crypto_kpp_spawn *spawn,
EXPORT_SYMBOL_GPL(crypto_grab_kpp);
int crypto_has_kpp(const char *alg_name, u32 type, u32 mask)
{
return crypto_type_has_alg(alg_name, &crypto_kpp_type, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_has_kpp);
static void kpp_prepare_alg(struct kpp_alg *alg)
{
- struct crypto_istat_kpp *istat = kpp_get_stat(alg);
struct crypto_alg *base = &alg->base;
base->cra_type = &crypto_kpp_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_KPP;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- memset(istat, 0, sizeof(*istat));
}
int crypto_register_kpp(struct kpp_alg *alg)
{
struct crypto_alg *base = &alg->base;
kpp_prepare_alg(alg);
return crypto_register_alg(base);
}
EXPORT_SYMBOL_GPL(crypto_register_kpp);
diff --git a/crypto/lskcipher.c b/crypto/lskcipher.c
index 0b6dd8aa21f2e..0a800292ca4e3 100644
--- a/crypto/lskcipher.c
+++ b/crypto/lskcipher.c
@@ -22,39 +22,20 @@ static inline struct crypto_lskcipher *__crypto_lskcipher_cast(
{
return container_of(tfm, struct crypto_lskcipher, base);
}
static inline struct lskcipher_alg *__crypto_lskcipher_alg(
struct crypto_alg *alg)
{
return container_of(alg, struct lskcipher_alg, co.base);
}
-static inline struct crypto_istat_cipher *lskcipher_get_stat(
- struct lskcipher_alg *alg)
-{
- return skcipher_get_stat_common(&alg->co);
-}
-
-static inline int crypto_lskcipher_errstat(struct lskcipher_alg *alg, int err)
-{
- struct crypto_istat_cipher *istat = lskcipher_get_stat(alg);
-
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err)
- atomic64_inc(&istat->err_cnt);
-
- return err;
-}
-
static int lskcipher_setkey_unaligned(struct crypto_lskcipher *tfm,
const u8 *key, unsigned int keylen)
{
unsigned long alignmask = crypto_lskcipher_alignmask(tfm);
struct lskcipher_alg *cipher = crypto_lskcipher_alg(tfm);
u8 *buffer, *alignbuffer;
unsigned long absize;
int ret;
absize = keylen + alignmask;
@@ -140,64 +121,43 @@ static int crypto_lskcipher_crypt_unaligned(
}
static int crypto_lskcipher_crypt(struct crypto_lskcipher *tfm, const u8 *src,
u8 *dst, unsigned len, u8 *iv,
int (*crypt)(struct crypto_lskcipher *tfm,
const u8 *src, u8 *dst,
unsigned len, u8 *iv,
u32 flags))
{
unsigned long alignmask = crypto_lskcipher_alignmask(tfm);
- struct lskcipher_alg *alg = crypto_lskcipher_alg(tfm);
- int ret;
if (((unsigned long)src | (unsigned long)dst | (unsigned long)iv) &
- alignmask) {
- ret = crypto_lskcipher_crypt_unaligned(tfm, src, dst, len, iv,
- crypt);
- goto out;
- }
+ alignmask)
+ return crypto_lskcipher_crypt_unaligned(tfm, src, dst, len, iv,
+ crypt);
- ret = crypt(tfm, src, dst, len, iv, CRYPTO_LSKCIPHER_FLAG_FINAL);
-
-out:
- return crypto_lskcipher_errstat(alg, ret);
+ return crypt(tfm, src, dst, len, iv, CRYPTO_LSKCIPHER_FLAG_FINAL);
}
int crypto_lskcipher_encrypt(struct crypto_lskcipher *tfm, const u8 *src,
u8 *dst, unsigned len, u8 *iv)
{
struct lskcipher_alg *alg = crypto_lskcipher_alg(tfm);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_cipher *istat = lskcipher_get_stat(alg);
-
- atomic64_inc(&istat->encrypt_cnt);
- atomic64_add(len, &istat->encrypt_tlen);
- }
-
return crypto_lskcipher_crypt(tfm, src, dst, len, iv, alg->encrypt);
}
EXPORT_SYMBOL_GPL(crypto_lskcipher_encrypt);
int crypto_lskcipher_decrypt(struct crypto_lskcipher *tfm, const u8 *src,
u8 *dst, unsigned len, u8 *iv)
{
struct lskcipher_alg *alg = crypto_lskcipher_alg(tfm);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_cipher *istat = lskcipher_get_stat(alg);
-
- atomic64_inc(&istat->decrypt_cnt);
- atomic64_add(len, &istat->decrypt_tlen);
- }
-
return crypto_lskcipher_crypt(tfm, src, dst, len, iv, alg->decrypt);
}
EXPORT_SYMBOL_GPL(crypto_lskcipher_decrypt);
static int crypto_lskcipher_crypt_sg(struct skcipher_request *req,
int (*crypt)(struct crypto_lskcipher *tfm,
const u8 *src, u8 *dst,
unsigned len, u8 *ivs,
u32 flags))
{
@@ -315,54 +275,29 @@ static int __maybe_unused crypto_lskcipher_report(
rblkcipher.blocksize = alg->cra_blocksize;
rblkcipher.min_keysize = skcipher->co.min_keysize;
rblkcipher.max_keysize = skcipher->co.max_keysize;
rblkcipher.ivsize = skcipher->co.ivsize;
return nla_put(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
sizeof(rblkcipher), &rblkcipher);
}
-static int __maybe_unused crypto_lskcipher_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct lskcipher_alg *skcipher = __crypto_lskcipher_alg(alg);
- struct crypto_istat_cipher *istat;
- struct crypto_stat_cipher rcipher;
-
- istat = lskcipher_get_stat(skcipher);
-
- memset(&rcipher, 0, sizeof(rcipher));
-
- strscpy(rcipher.type, "cipher", sizeof(rcipher.type));
-
- rcipher.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
- rcipher.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
- rcipher.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
- rcipher.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
- rcipher.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher);
-}
-
static const struct crypto_type crypto_lskcipher_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_lskcipher_init_tfm,
.free = crypto_lskcipher_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_lskcipher_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_lskcipher_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_lskcipher_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_MASK,
.type = CRYPTO_ALG_TYPE_LSKCIPHER,
.tfmsize = offsetof(struct crypto_lskcipher, base),
};
static void crypto_lskcipher_exit_tfm_sg(struct crypto_tfm *tfm)
{
struct crypto_lskcipher **ctx = crypto_tfm_ctx(tfm);
diff --git a/crypto/rng.c b/crypto/rng.c
index 279dffdebf598..9d8804e464226 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -23,44 +23,38 @@
#include "internal.h"
static DEFINE_MUTEX(crypto_default_rng_lock);
struct crypto_rng *crypto_default_rng;
EXPORT_SYMBOL_GPL(crypto_default_rng);
static int crypto_default_rng_refcnt;
int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
{
- struct rng_alg *alg = crypto_rng_alg(tfm);
u8 *buf = NULL;
int err;
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&rng_get_stat(alg)->seed_cnt);
-
if (!seed && slen) {
buf = kmalloc(slen, GFP_KERNEL);
- err = -ENOMEM;
if (!buf)
- goto out;
+ return -ENOMEM;
err = get_random_bytes_wait(buf, slen);
if (err)
- goto free_buf;
+ goto out;
seed = buf;
}
- err = alg->seed(tfm, seed, slen);
-free_buf:
- kfree_sensitive(buf);
+ err = crypto_rng_alg(tfm)->seed(tfm, seed, slen);
out:
- return crypto_rng_errstat(alg, err);
+ kfree_sensitive(buf);
+ return err;
}
EXPORT_SYMBOL_GPL(crypto_rng_reset);
static int crypto_rng_init_tfm(struct crypto_tfm *tfm)
{
return 0;
}
static unsigned int seedsize(struct crypto_alg *alg)
{
@@ -84,52 +78,28 @@ static int __maybe_unused crypto_rng_report(
}
static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg)
__maybe_unused;
static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg)
{
seq_printf(m, "type : rng\n");
seq_printf(m, "seedsize : %u\n", seedsize(alg));
}
-static int __maybe_unused crypto_rng_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct rng_alg *rng = __crypto_rng_alg(alg);
- struct crypto_istat_rng *istat;
- struct crypto_stat_rng rrng;
-
- istat = rng_get_stat(rng);
-
- memset(&rrng, 0, sizeof(rrng));
-
- strscpy(rrng.type, "rng", sizeof(rrng.type));
-
- rrng.stat_generate_cnt = atomic64_read(&istat->generate_cnt);
- rrng.stat_generate_tlen = atomic64_read(&istat->generate_tlen);
- rrng.stat_seed_cnt = atomic64_read(&istat->seed_cnt);
- rrng.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_RNG, sizeof(rrng), &rrng);
-}
-
static const struct crypto_type crypto_rng_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_rng_init_tfm,
#ifdef CONFIG_PROC_FS
.show = crypto_rng_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_rng_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_rng_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_MASK,
.type = CRYPTO_ALG_TYPE_RNG,
.tfmsize = offsetof(struct crypto_rng, base),
};
struct crypto_rng *crypto_alloc_rng(const char *alg_name, u32 type, u32 mask)
{
return crypto_alloc_tfm(alg_name, &crypto_rng_type, type, mask);
@@ -192,33 +162,29 @@ int crypto_del_default_rng(void)
out:
mutex_unlock(&crypto_default_rng_lock);
return err;
}
EXPORT_SYMBOL_GPL(crypto_del_default_rng);
#endif
int crypto_register_rng(struct rng_alg *alg)
{
- struct crypto_istat_rng *istat = rng_get_stat(alg);
struct crypto_alg *base = &alg->base;
if (alg->seedsize > PAGE_SIZE / 8)
return -EINVAL;
base->cra_type = &crypto_rng_type;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_RNG;
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- memset(istat, 0, sizeof(*istat));
-
return crypto_register_alg(base);
}
EXPORT_SYMBOL_GPL(crypto_register_rng);
void crypto_unregister_rng(struct rng_alg *alg)
{
crypto_unregister_alg(&alg->base);
}
EXPORT_SYMBOL_GPL(crypto_unregister_rng);
diff --git a/crypto/scompress.c b/crypto/scompress.c
index b108a30a76001..9cda4ef84a9bb 100644
--- a/crypto/scompress.c
+++ b/crypto/scompress.c
@@ -241,37 +241,33 @@ void crypto_acomp_scomp_free_ctx(struct acomp_req *req)
}
static const struct crypto_type crypto_scomp_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_scomp_init_tfm,
#ifdef CONFIG_PROC_FS
.show = crypto_scomp_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_scomp_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_acomp_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_MASK,
.type = CRYPTO_ALG_TYPE_SCOMPRESS,
.tfmsize = offsetof(struct crypto_scomp, base),
};
int crypto_register_scomp(struct scomp_alg *alg)
{
- struct crypto_alg *base = &alg->calg.base;
-
- comp_prepare_alg(&alg->calg);
+ struct crypto_alg *base = &alg->base;
base->cra_type = &crypto_scomp_type;
+ base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
base->cra_flags |= CRYPTO_ALG_TYPE_SCOMPRESS;
return crypto_register_alg(base);
}
EXPORT_SYMBOL_GPL(crypto_register_scomp);
void crypto_unregister_scomp(struct scomp_alg *alg)
{
crypto_unregister_alg(&alg->base);
}
diff --git a/crypto/shash.c b/crypto/shash.c
index c3f7f6a252803..0ffe671b519e1 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -9,32 +9,20 @@
#include <linux/cryptouser.h>
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/seq_file.h>
#include <linux/string.h>
#include <net/netlink.h>
#include "hash.h"
-static inline struct crypto_istat_hash *shash_get_stat(struct shash_alg *alg)
-{
- return hash_get_stat(&alg->halg);
-}
-
-static inline int crypto_shash_errstat(struct shash_alg *alg, int err)
-{
- if (IS_ENABLED(CONFIG_CRYPTO_STATS) && err)
- atomic64_inc(&shash_get_stat(alg)->err_cnt);
- return err;
-}
-
int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
unsigned int keylen)
{
return -ENOSYS;
}
EXPORT_SYMBOL_GPL(shash_no_setkey);
static void shash_set_needkey(struct crypto_shash *tfm, struct shash_alg *alg)
{
if (crypto_shash_alg_needs_key(alg))
@@ -54,104 +42,64 @@ int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
}
crypto_shash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
return 0;
}
EXPORT_SYMBOL_GPL(crypto_shash_setkey);
int crypto_shash_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
- struct shash_alg *shash = crypto_shash_alg(desc->tfm);
- int err;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_add(len, &shash_get_stat(shash)->hash_tlen);
-
- err = shash->update(desc, data, len);
-
- return crypto_shash_errstat(shash, err);
+ return crypto_shash_alg(desc->tfm)->update(desc, data, len);
}
EXPORT_SYMBOL_GPL(crypto_shash_update);
int crypto_shash_final(struct shash_desc *desc, u8 *out)
{
- struct shash_alg *shash = crypto_shash_alg(desc->tfm);
- int err;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&shash_get_stat(shash)->hash_cnt);
-
- err = shash->final(desc, out);
-
- return crypto_shash_errstat(shash, err);
+ return crypto_shash_alg(desc->tfm)->final(desc, out);
}
EXPORT_SYMBOL_GPL(crypto_shash_final);
static int shash_default_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
struct shash_alg *shash = crypto_shash_alg(desc->tfm);
return shash->update(desc, data, len) ?:
shash->final(desc, out);
}
int crypto_shash_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
- struct crypto_shash *tfm = desc->tfm;
- struct shash_alg *shash = crypto_shash_alg(tfm);
- int err;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_hash *istat = shash_get_stat(shash);
-
- atomic64_inc(&istat->hash_cnt);
- atomic64_add(len, &istat->hash_tlen);
- }
-
- err = shash->finup(desc, data, len, out);
-
- return crypto_shash_errstat(shash, err);
+ return crypto_shash_alg(desc->tfm)->finup(desc, data, len, out);
}
EXPORT_SYMBOL_GPL(crypto_shash_finup);
static int shash_default_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
struct shash_alg *shash = crypto_shash_alg(desc->tfm);
return shash->init(desc) ?:
shash->finup(desc, data, len, out);
}
int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
struct crypto_shash *tfm = desc->tfm;
- struct shash_alg *shash = crypto_shash_alg(tfm);
- int err;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_hash *istat = shash_get_stat(shash);
-
- atomic64_inc(&istat->hash_cnt);
- atomic64_add(len, &istat->hash_tlen);
- }
if (crypto_shash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
- err = -ENOKEY;
- else
- err = shash->digest(desc, data, len, out);
+ return -ENOKEY;
- return crypto_shash_errstat(shash, err);
+ return crypto_shash_alg(desc->tfm)->digest(desc, data, len, out);
}
EXPORT_SYMBOL_GPL(crypto_shash_digest);
int crypto_shash_tfm_digest(struct crypto_shash *tfm, const u8 *data,
unsigned int len, u8 *out)
{
SHASH_DESC_ON_STACK(desc, tfm);
int err;
desc->tfm = tfm;
@@ -258,38 +206,29 @@ static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg)
__maybe_unused;
static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg)
{
struct shash_alg *salg = __crypto_shash_alg(alg);
seq_printf(m, "type : shash\n");
seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
seq_printf(m, "digestsize : %u\n", salg->digestsize);
}
-static int __maybe_unused crypto_shash_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- return crypto_hash_report_stat(skb, alg, "shash");
-}
-
const struct crypto_type crypto_shash_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_shash_init_tfm,
.free = crypto_shash_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_shash_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_shash_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_shash_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_MASK,
.type = CRYPTO_ALG_TYPE_SHASH,
.tfmsize = offsetof(struct crypto_shash, base),
};
int crypto_grab_shash(struct crypto_shash_spawn *spawn,
struct crypto_instance *inst,
const char *name, u32 type, u32 mask)
@@ -343,35 +282,31 @@ struct crypto_shash *crypto_clone_shash(struct crypto_shash *hash)
return ERR_PTR(err);
}
}
return nhash;
}
EXPORT_SYMBOL_GPL(crypto_clone_shash);
int hash_prepare_alg(struct hash_alg_common *alg)
{
- struct crypto_istat_hash *istat = hash_get_stat(alg);
struct crypto_alg *base = &alg->base;
if (alg->digestsize > HASH_MAX_DIGESTSIZE)
return -EINVAL;
/* alignmask is not useful for hashes, so it is not supported. */
if (base->cra_alignmask)
return -EINVAL;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- memset(istat, 0, sizeof(*istat));
-
return 0;
}
static int shash_prepare_alg(struct shash_alg *alg)
{
struct crypto_alg *base = &alg->halg.base;
int err;
if (alg->descsize > HASH_MAX_DESCSIZE)
return -EINVAL;
diff --git a/crypto/sig.c b/crypto/sig.c
index 224c470192977..7645bedf3a1fd 100644
--- a/crypto/sig.c
+++ b/crypto/sig.c
@@ -38,41 +38,28 @@ static void __maybe_unused crypto_sig_show(struct seq_file *m,
static int __maybe_unused crypto_sig_report(struct sk_buff *skb,
struct crypto_alg *alg)
{
struct crypto_report_akcipher rsig = {};
strscpy(rsig.type, "sig", sizeof(rsig.type));
return nla_put(skb, CRYPTOCFGA_REPORT_AKCIPHER, sizeof(rsig), &rsig);
}
-static int __maybe_unused crypto_sig_report_stat(struct sk_buff *skb,
- struct crypto_alg *alg)
-{
- struct crypto_stat_akcipher rsig = {};
-
- strscpy(rsig.type, "sig", sizeof(rsig.type));
-
- return nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER, sizeof(rsig), &rsig);
-}
-
static const struct crypto_type crypto_sig_type = {
.extsize = crypto_alg_extsize,
.init_tfm = crypto_sig_init_tfm,
#ifdef CONFIG_PROC_FS
.show = crypto_sig_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_sig_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_sig_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_SIG_MASK,
.type = CRYPTO_ALG_TYPE_SIG,
.tfmsize = offsetof(struct crypto_sig, base),
};
struct crypto_sig *crypto_alloc_sig(const char *alg_name, u32 type, u32 mask)
{
return crypto_alloc_tfm(alg_name, &crypto_sig_type, type, mask);
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index bc70e159d27df..ceed7f33a67ba 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -82,39 +82,20 @@ static inline u8 *skcipher_get_spot(u8 *start, unsigned int len)
return max(start, end_page);
}
static inline struct skcipher_alg *__crypto_skcipher_alg(
struct crypto_alg *alg)
{
return container_of(alg, struct skcipher_alg, base);
}
-static inline struct crypto_istat_cipher *skcipher_get_stat(
- struct skcipher_alg *alg)
-{
- return skcipher_get_stat_common(&alg->co);
-}
-
-static inline int crypto_skcipher_errstat(struct skcipher_alg *alg, int err)
-{
- struct crypto_istat_cipher *istat = skcipher_get_stat(alg);
-
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err && err != -EINPROGRESS && err != -EBUSY)
- atomic64_inc(&istat->err_cnt);
-
- return err;
-}
-
static int skcipher_done_slow(struct skcipher_walk *walk, unsigned int bsize)
{
u8 *addr;
addr = (u8 *)ALIGN((unsigned long)walk->buffer, walk->alignmask + 1);
addr = skcipher_get_spot(addr, bsize);
scatterwalk_copychunks(addr, &walk->out, bsize,
(walk->flags & SKCIPHER_WALK_PHYS) ? 2 : 1);
return 0;
}
@@ -647,61 +628,39 @@ int crypto_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
crypto_skcipher_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
return 0;
}
EXPORT_SYMBOL_GPL(crypto_skcipher_setkey);
int crypto_skcipher_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
- int ret;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_cipher *istat = skcipher_get_stat(alg);
-
- atomic64_inc(&istat->encrypt_cnt);
- atomic64_add(req->cryptlen, &istat->encrypt_tlen);
- }
if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
- ret = -ENOKEY;
- else if (alg->co.base.cra_type != &crypto_skcipher_type)
- ret = crypto_lskcipher_encrypt_sg(req);
- else
- ret = alg->encrypt(req);
-
- return crypto_skcipher_errstat(alg, ret);
+ return -ENOKEY;
+ if (alg->co.base.cra_type != &crypto_skcipher_type)
+ return crypto_lskcipher_encrypt_sg(req);
+ return alg->encrypt(req);
}
EXPORT_SYMBOL_GPL(crypto_skcipher_encrypt);
int crypto_skcipher_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
- int ret;
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_cipher *istat = skcipher_get_stat(alg);
-
- atomic64_inc(&istat->decrypt_cnt);
- atomic64_add(req->cryptlen, &istat->decrypt_tlen);
- }
if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
- ret = -ENOKEY;
- else if (alg->co.base.cra_type != &crypto_skcipher_type)
- ret = crypto_lskcipher_decrypt_sg(req);
- else
- ret = alg->decrypt(req);
-
- return crypto_skcipher_errstat(alg, ret);
+ return -ENOKEY;
+ if (alg->co.base.cra_type != &crypto_skcipher_type)
+ return crypto_lskcipher_decrypt_sg(req);
+ return alg->decrypt(req);
}
EXPORT_SYMBOL_GPL(crypto_skcipher_decrypt);
static int crypto_lskcipher_export(struct skcipher_request *req, void *out)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
u8 *ivs = skcipher_request_ctx(req);
ivs = PTR_ALIGN(ivs, crypto_skcipher_alignmask(tfm) + 1);
@@ -839,54 +798,29 @@ static int __maybe_unused crypto_skcipher_report(
rblkcipher.blocksize = alg->cra_blocksize;
rblkcipher.min_keysize = skcipher->min_keysize;
rblkcipher.max_keysize = skcipher->max_keysize;
rblkcipher.ivsize = skcipher->ivsize;
return nla_put(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
sizeof(rblkcipher), &rblkcipher);
}
-static int __maybe_unused crypto_skcipher_report_stat(
- struct sk_buff *skb, struct crypto_alg *alg)
-{
- struct skcipher_alg *skcipher = __crypto_skcipher_alg(alg);
- struct crypto_istat_cipher *istat;
- struct crypto_stat_cipher rcipher;
-
- istat = skcipher_get_stat(skcipher);
-
- memset(&rcipher, 0, sizeof(rcipher));
-
- strscpy(rcipher.type, "cipher", sizeof(rcipher.type));
-
- rcipher.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
- rcipher.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
- rcipher.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
- rcipher.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
- rcipher.stat_err_cnt = atomic64_read(&istat->err_cnt);
-
- return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher);
-}
-
static const struct crypto_type crypto_skcipher_type = {
.extsize = crypto_skcipher_extsize,
.init_tfm = crypto_skcipher_init_tfm,
.free = crypto_skcipher_free_instance,
#ifdef CONFIG_PROC_FS
.show = crypto_skcipher_show,
#endif
#if IS_ENABLED(CONFIG_CRYPTO_USER)
.report = crypto_skcipher_report,
-#endif
-#ifdef CONFIG_CRYPTO_STATS
- .report_stat = crypto_skcipher_report_stat,
#endif
.maskclear = ~CRYPTO_ALG_TYPE_MASK,
.maskset = CRYPTO_ALG_TYPE_SKCIPHER_MASK,
.type = CRYPTO_ALG_TYPE_SKCIPHER,
.tfmsize = offsetof(struct crypto_skcipher, base),
};
int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn,
struct crypto_instance *inst,
const char *name, u32 type, u32 mask)
@@ -928,36 +862,32 @@ struct crypto_sync_skcipher *crypto_alloc_sync_skcipher(
EXPORT_SYMBOL_GPL(crypto_alloc_sync_skcipher);
int crypto_has_skcipher(const char *alg_name, u32 type, u32 mask)
{
return crypto_type_has_alg(alg_name, &crypto_skcipher_type, type, mask);
}
EXPORT_SYMBOL_GPL(crypto_has_skcipher);
int skcipher_prepare_alg_common(struct skcipher_alg_common *alg)
{
- struct crypto_istat_cipher *istat = skcipher_get_stat_common(alg);
struct crypto_alg *base = &alg->base;
if (alg->ivsize > PAGE_SIZE / 8 || alg->chunksize > PAGE_SIZE / 8 ||
alg->statesize > PAGE_SIZE / 2 ||
(alg->ivsize + alg->statesize) > PAGE_SIZE / 2)
return -EINVAL;
if (!alg->chunksize)
alg->chunksize = base->cra_blocksize;
base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- memset(istat, 0, sizeof(*istat));
-
return 0;
}
static int skcipher_prepare_alg(struct skcipher_alg *alg)
{
struct crypto_alg *base = &alg->base;
int err;
err = skcipher_prepare_alg_common(&alg->co);
if (err)
diff --git a/crypto/skcipher.h b/crypto/skcipher.h
index 16c9484360dab..703651367dd87 100644
--- a/crypto/skcipher.h
+++ b/crypto/skcipher.h
@@ -3,26 +3,16 @@
* Cryptographic API.
*
* Copyright (c) 2023 Herbert Xu <[email protected]>
*/
#ifndef _LOCAL_CRYPTO_SKCIPHER_H
#define _LOCAL_CRYPTO_SKCIPHER_H
#include <crypto/internal/skcipher.h>
#include "internal.h"
-static inline struct crypto_istat_cipher *skcipher_get_stat_common(
- struct skcipher_alg_common *alg)
-{
-#ifdef CONFIG_CRYPTO_STATS
- return &alg->stat;
-#else
- return NULL;
-#endif
-}
-
int crypto_lskcipher_encrypt_sg(struct skcipher_request *req);
int crypto_lskcipher_decrypt_sg(struct skcipher_request *req);
int crypto_init_lskcipher_ops_sg(struct crypto_tfm *tfm);
int skcipher_prepare_alg_common(struct skcipher_alg_common *alg);
#endif /* _LOCAL_CRYPTO_SKCIPHER_H */
diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h
index 574cffc90730f..d042c90e09076 100644
--- a/include/crypto/acompress.h
+++ b/include/crypto/acompress.h
@@ -49,49 +49,20 @@ struct acomp_req {
* @base: Common crypto API algorithm data structure
*/
struct crypto_acomp {
int (*compress)(struct acomp_req *req);
int (*decompress)(struct acomp_req *req);
void (*dst_free)(struct scatterlist *dst);
unsigned int reqsize;
struct crypto_tfm base;
};
-/*
- * struct crypto_istat_compress - statistics for compress algorithm
- * @compress_cnt: number of compress requests
- * @compress_tlen: total data size handled by compress requests
- * @decompress_cnt: number of decompress requests
- * @decompress_tlen: total data size handled by decompress requests
- * @err_cnt: number of error for compress requests
- */
-struct crypto_istat_compress {
- atomic64_t compress_cnt;
- atomic64_t compress_tlen;
- atomic64_t decompress_cnt;
- atomic64_t decompress_tlen;
- atomic64_t err_cnt;
-};
-
-#ifdef CONFIG_CRYPTO_STATS
-#define COMP_ALG_COMMON_STATS struct crypto_istat_compress stat;
-#else
-#define COMP_ALG_COMMON_STATS
-#endif
-
-#define COMP_ALG_COMMON { \
- COMP_ALG_COMMON_STATS \
- \
- struct crypto_alg base; \
-}
-struct comp_alg_common COMP_ALG_COMMON;
-
/**
* DOC: Asynchronous Compression API
*
* The Asynchronous Compression API is used with the algorithms of type
* CRYPTO_ALG_TYPE_ACOMPRESS (listed as type "acomp" in /proc/crypto)
*/
/**
* crypto_alloc_acomp() -- allocate ACOMPRESS tfm handle
* @alg_name: is the cra_name / name or cra_driver_name / driver name of the
@@ -125,37 +96,25 @@ struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
* of an error, PTR_ERR() returns the error code.
*/
struct crypto_acomp *crypto_alloc_acomp_node(const char *alg_name, u32 type,
u32 mask, int node);
static inline struct crypto_tfm *crypto_acomp_tfm(struct crypto_acomp *tfm)
{
return &tfm->base;
}
-static inline struct comp_alg_common *__crypto_comp_alg_common(
- struct crypto_alg *alg)
-{
- return container_of(alg, struct comp_alg_common, base);
-}
-
static inline struct crypto_acomp *__crypto_acomp_tfm(struct crypto_tfm *tfm)
{
return container_of(tfm, struct crypto_acomp, base);
}
-static inline struct comp_alg_common *crypto_comp_alg_common(
- struct crypto_acomp *tfm)
-{
- return __crypto_comp_alg_common(crypto_acomp_tfm(tfm)->__crt_alg);
-}
-
static inline unsigned int crypto_acomp_reqsize(struct crypto_acomp *tfm)
{
return tfm->reqsize;
}
static inline void acomp_request_set_tfm(struct acomp_req *req,
struct crypto_acomp *tfm)
{
req->base.tfm = crypto_acomp_tfm(tfm);
}
@@ -248,84 +207,39 @@ static inline void acomp_request_set_params(struct acomp_req *req,
req->src = src;
req->dst = dst;
req->slen = slen;
req->dlen = dlen;
req->flags &= ~CRYPTO_ACOMP_ALLOC_OUTPUT;
if (!req->dst)
req->flags |= CRYPTO_ACOMP_ALLOC_OUTPUT;
}
-static inline struct crypto_istat_compress *comp_get_stat(
- struct comp_alg_common *alg)
-{
-#ifdef CONFIG_CRYPTO_STATS
- return &alg->stat;
-#else
- return NULL;
-#endif
-}
-
-static inline int crypto_comp_errstat(struct comp_alg_common *alg, int err)
-{
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err && err != -EINPROGRESS && err != -EBUSY)
- atomic64_inc(&comp_get_stat(alg)->err_cnt);
-
- return err;
-}
-
/**
* crypto_acomp_compress() -- Invoke asynchronous compress operation
*
* Function invokes the asynchronous compress operation
*
* @req: asynchronous compress request
*
* Return: zero on success; error code in case of error
*/
static inline int crypto_acomp_compress(struct acomp_req *req)
{
- struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
- struct comp_alg_common *alg;
-
- alg = crypto_comp_alg_common(tfm);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_compress *istat = comp_get_stat(alg);
-
- atomic64_inc(&istat->compress_cnt);
- atomic64_add(req->slen, &istat->compress_tlen);
- }
-
- return crypto_comp_errstat(alg, tfm->compress(req));
+ return crypto_acomp_reqtfm(req)->compress(req);
}
/**
* crypto_acomp_decompress() -- Invoke asynchronous decompress operation
*
* Function invokes the asynchronous decompress operation
*
* @req: asynchronous compress request
*
* Return: zero on success; error code in case of error
*/
static inline int crypto_acomp_decompress(struct acomp_req *req)
{
- struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
- struct comp_alg_common *alg;
-
- alg = crypto_comp_alg_common(tfm);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_compress *istat = comp_get_stat(alg);
-
- atomic64_inc(&istat->decompress_cnt);
- atomic64_add(req->slen, &istat->decompress_tlen);
- }
-
- return crypto_comp_errstat(alg, tfm->decompress(req));
+ return crypto_acomp_reqtfm(req)->decompress(req);
}
#endif
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 51382befbe37a..0e8a416386780 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -94,55 +94,38 @@ struct aead_request {
unsigned int cryptlen;
u8 *iv;
struct scatterlist *src;
struct scatterlist *dst;
void *__ctx[] CRYPTO_MINALIGN_ATTR;
};
-/*
- * struct crypto_istat_aead - statistics for AEAD algorithm
- * @encrypt_cnt: number of encrypt requests
- * @encrypt_tlen: total data size handled by encrypt requests
- * @decrypt_cnt: number of decrypt requests
- * @decrypt_tlen: total data size handled by decrypt requests
- * @err_cnt: number of error for AEAD requests
- */
-struct crypto_istat_aead {
- atomic64_t encrypt_cnt;
- atomic64_t encrypt_tlen;
- atomic64_t decrypt_cnt;
- atomic64_t decrypt_tlen;
- atomic64_t err_cnt;
-};
-
/**
* struct aead_alg - AEAD cipher definition
* @maxauthsize: Set the maximum authentication tag size supported by the
* transformation. A transformation may support smaller tag sizes.
* As the authentication tag is a message digest to ensure the
* integrity of the encrypted data, a consumer typically wants the
* largest authentication tag possible as defined by this
* variable.
* @setauthsize: Set authentication size for the AEAD transformation. This
* function is used to specify the consumer requested size of the
* authentication tag to be either generated by the transformation
* during encryption or the size of the authentication tag to be
* supplied during the decryption operation. This function is also
* responsible for checking the authentication tag size for
* validity.
* @setkey: see struct skcipher_alg
* @encrypt: see struct skcipher_alg
* @decrypt: see struct skcipher_alg
- * @stat: statistics for AEAD algorithm
* @ivsize: see struct skcipher_alg
* @chunksize: see struct skcipher_alg
* @init: Initialize the cryptographic transformation object. This function
* is used to initialize the cryptographic transformation object.
* This function is called only once at the instantiation time, right
* after the transformation context was allocated. In case the
* cryptographic hardware has some special requirements which need to
* be handled by software, this function shall check for the precise
* requirement of the transformation and put any software fallbacks
* in place.
@@ -155,24 +138,20 @@ struct crypto_istat_aead {
*/
struct aead_alg {
int (*setkey)(struct crypto_aead *tfm, const u8 *key,
unsigned int keylen);
int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
int (*encrypt)(struct aead_request *req);
int (*decrypt)(struct aead_request *req);
int (*init)(struct crypto_aead *tfm);
void (*exit)(struct crypto_aead *tfm);
-#ifdef CONFIG_CRYPTO_STATS
- struct crypto_istat_aead stat;
-#endif
-
unsigned int ivsize;
unsigned int maxauthsize;
unsigned int chunksize;
struct crypto_alg base;
};
struct crypto_aead {
unsigned int authsize;
unsigned int reqsize;
diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
index 31c111bebb688..18a10cad07aaa 100644
--- a/include/crypto/akcipher.h
+++ b/include/crypto/akcipher.h
@@ -47,40 +47,20 @@ struct akcipher_request {
*
* @reqsize: Request context size required by algorithm implementation
* @base: Common crypto API algorithm data structure
*/
struct crypto_akcipher {
unsigned int reqsize;
struct crypto_tfm base;
};
-/*
- * struct crypto_istat_akcipher - statistics for akcipher algorithm
- * @encrypt_cnt: number of encrypt requests
- * @encrypt_tlen: total data size handled by encrypt requests
- * @decrypt_cnt: number of decrypt requests
- * @decrypt_tlen: total data size handled by decrypt requests
- * @verify_cnt: number of verify operation
- * @sign_cnt: number of sign requests
- * @err_cnt: number of error for akcipher requests
- */
-struct crypto_istat_akcipher {
- atomic64_t encrypt_cnt;
- atomic64_t encrypt_tlen;
- atomic64_t decrypt_cnt;
- atomic64_t decrypt_tlen;
- atomic64_t verify_cnt;
- atomic64_t sign_cnt;
- atomic64_t err_cnt;
-};
-
/**
* struct akcipher_alg - generic public key algorithm
*
* @sign: Function performs a sign operation as defined by public key
* algorithm. In case of error, where the dst_len was insufficient,
* the req->dst_len will be updated to the size required for the
* operation
* @verify: Function performs a complete verify operation as defined by
* public key algorithm, returning verification status. Requires
* digest value as input parameter.
@@ -103,41 +83,36 @@ struct crypto_istat_akcipher {
* This function is used to initialize the cryptographic
* transformation object. This function is called only once at
* the instantiation time, right after the transformation context
* was allocated. In case the cryptographic hardware has some
* special requirements which need to be handled by software, this
* function shall check for the precise requirement of the
* transformation and put any software fallbacks in place.
* @exit: Deinitialize the cryptographic transformation object. This is a
* counterpart to @init, used to remove various changes set in
* @init.
- * @stat: Statistics for akcipher algorithm
*
* @base: Common crypto API algorithm data structure
*/
struct akcipher_alg {
int (*sign)(struct akcipher_request *req);
int (*verify)(struct akcipher_request *req);
int (*encrypt)(struct akcipher_request *req);
int (*decrypt)(struct akcipher_request *req);
int (*set_pub_key)(struct crypto_akcipher *tfm, const void *key,
unsigned int keylen);
int (*set_priv_key)(struct crypto_akcipher *tfm, const void *key,
unsigned int keylen);
unsigned int (*max_size)(struct crypto_akcipher *tfm);
int (*init)(struct crypto_akcipher *tfm);
void (*exit)(struct crypto_akcipher *tfm);
-#ifdef CONFIG_CRYPTO_STATS
- struct crypto_istat_akcipher stat;
-#endif
-
struct crypto_alg base;
};
/**
* DOC: Generic Public Key API
*
* The Public Key API is used with the algorithms of type
* CRYPTO_ALG_TYPE_AKCIPHER (listed as type "akcipher" in /proc/crypto)
*/
@@ -295,89 +270,52 @@ static inline void akcipher_request_set_crypt(struct akcipher_request *req,
*
* @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
*/
static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *tfm)
{
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
return alg->max_size(tfm);
}
-static inline struct crypto_istat_akcipher *akcipher_get_stat(
- struct akcipher_alg *alg)
-{
-#ifdef CONFIG_CRYPTO_STATS
- return &alg->stat;
-#else
- return NULL;
-#endif
-}
-
-static inline int crypto_akcipher_errstat(struct akcipher_alg *alg, int err)
-{
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err && err != -EINPROGRESS && err != -EBUSY)
- atomic64_inc(&akcipher_get_stat(alg)->err_cnt);
-
- return err;
-}
-
/**
* crypto_akcipher_encrypt() - Invoke public key encrypt operation
*
* Function invokes the specific public key encrypt operation for a given
* public key algorithm
*
* @req: asymmetric key request
*
* Return: zero on success; error code in case of error
*/
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);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_akcipher *istat = akcipher_get_stat(alg);
-
- atomic64_inc(&istat->encrypt_cnt);
- atomic64_add(req->src_len, &istat->encrypt_tlen);
- }
-
- return crypto_akcipher_errstat(alg, alg->encrypt(req));
+ return crypto_akcipher_alg(tfm)->encrypt(req);
}
/**
* crypto_akcipher_decrypt() - Invoke public key decrypt operation
*
* Function invokes the specific public key decrypt operation for a given
* public key algorithm
*
* @req: asymmetric key request
*
* Return: zero on success; error code in case of error
*/
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);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_akcipher *istat = akcipher_get_stat(alg);
-
- atomic64_inc(&istat->decrypt_cnt);
- atomic64_add(req->src_len, &istat->decrypt_tlen);
- }
-
- return crypto_akcipher_errstat(alg, alg->decrypt(req));
+ return crypto_akcipher_alg(tfm)->decrypt(req);
}
/**
* crypto_akcipher_sync_encrypt() - Invoke public key encrypt operation
*
* Function invokes the specific public key encrypt operation for a given
* public key algorithm
*
* @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
* @src: source buffer
@@ -415,51 +353,43 @@ int crypto_akcipher_sync_decrypt(struct crypto_akcipher *tfm,
* Function invokes the specific public key sign operation for a given
* public key algorithm
*
* @req: asymmetric key request
*
* Return: zero on success; error code in case of error
*/
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);
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&akcipher_get_stat(alg)->sign_cnt);
-
- return crypto_akcipher_errstat(alg, alg->sign(req));
+ return crypto_akcipher_alg(tfm)->sign(req);
}
/**
* crypto_akcipher_verify() - Invoke public key signature verification
*
* Function invokes the specific public key signature verification operation
* for a given public key algorithm.
*
* @req: asymmetric key request
*
* Note: req->dst should be NULL, req->src should point to SG of size
* (req->src_size + req->dst_size), containing signature (of req->src_size
* length) with appended digest (of req->dst_size length).
*
* Return: zero on verification success; error code in case of error.
*/
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);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&akcipher_get_stat(alg)->verify_cnt);
- return crypto_akcipher_errstat(alg, alg->verify(req));
+ return crypto_akcipher_alg(tfm)->verify(req);
}
/**
* crypto_akcipher_set_pub_key() - Invoke set public key operation
*
* Function invokes the algorithm specific set key function, which knows
* how to decode and interpret the encoded key and parameters
*
* @tfm: tfm handle
* @key: BER encoded public key, algo OID, paramlen, BER encoded
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 7a4a71af653fa..156de41ca760a 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -54,23 +54,20 @@ struct scatterlist;
struct seq_file;
struct sk_buff;
struct crypto_type {
unsigned int (*ctxsize)(struct crypto_alg *alg, u32 type, u32 mask);
unsigned int (*extsize)(struct crypto_alg *alg);
int (*init_tfm)(struct crypto_tfm *tfm);
void (*show)(struct seq_file *m, struct crypto_alg *alg);
int (*report)(struct sk_buff *skb, struct crypto_alg *alg);
void (*free)(struct crypto_instance *inst);
-#ifdef CONFIG_CRYPTO_STATS
- int (*report_stat)(struct sk_buff *skb, struct crypto_alg *alg);
-#endif
unsigned int type;
unsigned int maskclear;
unsigned int maskset;
unsigned int tfmsize;
};
struct crypto_instance {
struct crypto_alg alg;
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 5d61f576cfc86..0014bdd81ab7d 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -16,59 +16,38 @@ struct crypto_ahash;
/**
* DOC: Message Digest Algorithm Definitions
*
* These data structures define modular message digest algorithm
* implementations, managed via crypto_register_ahash(),
* crypto_register_shash(), crypto_unregister_ahash() and
* crypto_unregister_shash().
*/
-/*
- * struct crypto_istat_hash - statistics for has algorithm
- * @hash_cnt: number of hash requests
- * @hash_tlen: total data size hashed
- * @err_cnt: number of error for hash requests
- */
-struct crypto_istat_hash {
- atomic64_t hash_cnt;
- atomic64_t hash_tlen;
- atomic64_t err_cnt;
-};
-
-#ifdef CONFIG_CRYPTO_STATS
-#define HASH_ALG_COMMON_STAT struct crypto_istat_hash stat;
-#else
-#define HASH_ALG_COMMON_STAT
-#endif
-
/*
* struct hash_alg_common - define properties of message digest
- * @stat: Statistics for hash algorithm.
* @digestsize: Size of the result of the transformation. A buffer of this size
* must be available to the @final and @finup calls, so they can
* store the resulting hash into it. For various predefined sizes,
* search include/crypto/ using
* git grep _DIGEST_SIZE include/crypto.
* @statesize: Size of the block for partial state of the transformation. A
* buffer of this size must be passed to the @export function as it
* will save the partial state of the transformation into it. On the
* other side, the @import function will load the state from a
* buffer of this size as well.
* @base: Start of data structure of cipher algorithm. The common data
* structure of crypto_alg contains information common to all ciphers.
* The hash_alg_common data structure now adds the hash-specific
* information.
*/
#define HASH_ALG_COMMON { \
- HASH_ALG_COMMON_STAT \
- \
unsigned int digestsize; \
unsigned int statesize; \
\
struct crypto_alg base; \
}
struct hash_alg_common HASH_ALG_COMMON;
struct ahash_request {
struct crypto_async_request base;
@@ -236,21 +215,20 @@ struct shash_alg {
int (*clone_tfm)(struct crypto_shash *dst, struct crypto_shash *src);
unsigned int descsize;
union {
struct HASH_ALG_COMMON;
struct hash_alg_common halg;
};
};
#undef HASH_ALG_COMMON
-#undef HASH_ALG_COMMON_STAT
struct crypto_ahash {
bool using_shash; /* Underlying algorithm is shash, not ahash */
unsigned int statesize;
unsigned int reqsize;
struct crypto_tfm base;
};
struct crypto_shash {
unsigned int descsize;
diff --git a/include/crypto/internal/acompress.h b/include/crypto/internal/acompress.h
index 4ac46bafba9d7..475e60a9f9ea9 100644
--- a/include/crypto/internal/acompress.h
+++ b/include/crypto/internal/acompress.h
@@ -24,37 +24,32 @@
* the instantiation time, right after the transformation context
* was allocated. In case the cryptographic hardware has some
* special requirements which need to be handled by software, this
* function shall check for the precise requirement of the
* transformation and put any software fallbacks in place.
* @exit: Deinitialize the cryptographic transformation object. This is a
* counterpart to @init, used to remove various changes set in
* @init.
*
* @reqsize: Context size for (de)compression requests
- * @stat: Statistics for compress algorithm
* @base: Common crypto API algorithm data structure
- * @calg: Cmonn algorithm data structure shared with scomp
*/
struct acomp_alg {
int (*compress)(struct acomp_req *req);
int (*decompress)(struct acomp_req *req);
void (*dst_free)(struct scatterlist *dst);
int (*init)(struct crypto_acomp *tfm);
void (*exit)(struct crypto_acomp *tfm);
unsigned int reqsize;
- union {
- struct COMP_ALG_COMMON;
- struct comp_alg_common calg;
- };
+ struct crypto_alg base;
};
/*
* Transform internal helpers.
*/
static inline void *acomp_request_ctx(struct acomp_req *req)
{
return req->__ctx;
}
diff --git a/include/crypto/internal/cryptouser.h b/include/crypto/internal/cryptouser.h
deleted file mode 100644
index fd54074332f50..0000000000000
--- a/include/crypto/internal/cryptouser.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <linux/cryptouser.h>
-#include <net/netlink.h>
-
-struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact);
-
-#ifdef CONFIG_CRYPTO_STATS
-int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs);
-#else
-static inline int crypto_reportstat(struct sk_buff *in_skb,
- struct nlmsghdr *in_nlh,
- struct nlattr **attrs)
-{
- return -ENOTSUPP;
-}
-#endif
diff --git a/include/crypto/internal/scompress.h b/include/crypto/internal/scompress.h
index 858fe3965ae34..5a75f2db18cef 100644
--- a/include/crypto/internal/scompress.h
+++ b/include/crypto/internal/scompress.h
@@ -20,38 +20,32 @@ struct crypto_scomp {
struct crypto_tfm base;
};
/**
* struct scomp_alg - synchronous compression algorithm
*
* @alloc_ctx: Function allocates algorithm specific context
* @free_ctx: Function frees context allocated with alloc_ctx
* @compress: Function performs a compress operation
* @decompress: Function performs a de-compress operation
- * @stat: Statistics for compress algorithm
* @base: Common crypto API algorithm data structure
- * @calg: Cmonn algorithm data structure shared with acomp
*/
struct scomp_alg {
void *(*alloc_ctx)(struct crypto_scomp *tfm);
void (*free_ctx)(struct crypto_scomp *tfm, void *ctx);
int (*compress)(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx);
int (*decompress)(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx);
-
- union {
- struct COMP_ALG_COMMON;
- struct comp_alg_common calg;
- };
+ struct crypto_alg base;
};
static inline struct scomp_alg *__crypto_scomp_alg(struct crypto_alg *alg)
{
return container_of(alg, struct scomp_alg, base);
}
static inline struct crypto_scomp *__crypto_scomp_tfm(struct crypto_tfm *tfm)
{
return container_of(tfm, struct crypto_scomp, base);
diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
index 1988e24a0d1db..2d9c4de57b694 100644
--- a/include/crypto/kpp.h
+++ b/include/crypto/kpp.h
@@ -44,34 +44,20 @@ struct kpp_request {
* @reqsize: Request context size required by algorithm
* implementation
* @base: Common crypto API algorithm data structure
*/
struct crypto_kpp {
unsigned int reqsize;
struct crypto_tfm base;
};
-/*
- * struct crypto_istat_kpp - statistics for KPP algorithm
- * @setsecret_cnt: number of setsecrey operation
- * @generate_public_key_cnt: number of generate_public_key operation
- * @compute_shared_secret_cnt: number of compute_shared_secret operation
- * @err_cnt: number of error for KPP requests
- */
-struct crypto_istat_kpp {
- atomic64_t setsecret_cnt;
- atomic64_t generate_public_key_cnt;
- atomic64_t compute_shared_secret_cnt;
- atomic64_t err_cnt;
-};
-
/**
* struct kpp_alg - generic key-agreement protocol primitives
*
* @set_secret: Function invokes the protocol specific function to
* store the secret private key along with parameters.
* The implementation knows how to decode the buffer
* @generate_public_key: Function generate the public key to be sent to the
* counterpart. In case of error, where output is not big
* enough req->dst_len will be updated to the size
* required
@@ -80,37 +66,32 @@ struct crypto_istat_kpp {
* In case of error, where output is not big enough,
* req->dst_len will be updated to the size required
* @max_size: Function returns the size of the output buffer
* @init: Initialize the object. This is called only once at
* instantiation time. In case the cryptographic hardware
* needs to be initialized. Software fallback should be
* put in place here.
* @exit: Undo everything @init did.
*
* @base: Common crypto API algorithm data structure
- * @stat: Statistics for KPP algorithm
*/
struct kpp_alg {
int (*set_secret)(struct crypto_kpp *tfm, const void *buffer,
unsigned int len);
int (*generate_public_key)(struct kpp_request *req);
int (*compute_shared_secret)(struct kpp_request *req);
unsigned int (*max_size)(struct crypto_kpp *tfm);
int (*init)(struct crypto_kpp *tfm);
void (*exit)(struct crypto_kpp *tfm);
-#ifdef CONFIG_CRYPTO_STATS
- struct crypto_istat_kpp stat;
-#endif
-
struct crypto_alg base;
};
/**
* DOC: Generic Key-agreement Protocol Primitives API
*
* The KPP API is used with the algorithm type
* CRYPTO_ALG_TYPE_KPP (listed as type "kpp" in /proc/crypto)
*/
@@ -284,109 +265,76 @@ enum {
*
* @type: define type of secret. Each kpp type will define its own
* @len: specify the len of the secret, include the header, that
* follows the struct
*/
struct kpp_secret {
unsigned short type;
unsigned short len;
};
-static inline struct crypto_istat_kpp *kpp_get_stat(struct kpp_alg *alg)
-{
-#ifdef CONFIG_CRYPTO_STATS
- return &alg->stat;
-#else
- return NULL;
-#endif
-}
-
-static inline int crypto_kpp_errstat(struct kpp_alg *alg, int err)
-{
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err && err != -EINPROGRESS && err != -EBUSY)
- atomic64_inc(&kpp_get_stat(alg)->err_cnt);
-
- return err;
-}
-
/**
* crypto_kpp_set_secret() - Invoke kpp operation
*
* Function invokes the specific kpp operation for a given alg.
*
* @tfm: tfm handle
* @buffer: Buffer holding the packet representation of the private
* key. The structure of the packet key depends on the particular
* KPP implementation. Packing and unpacking helpers are provided
* for ECDH and DH (see the respective header files for those
* implementations).
* @len: Length of the packet private key buffer.
*
* Return: zero on success; error code in case of error
*/
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);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&kpp_get_stat(alg)->setsecret_cnt);
-
- return crypto_kpp_errstat(alg, alg->set_secret(tfm, buffer, len));
+ return crypto_kpp_alg(tfm)->set_secret(tfm, buffer, len);
}
/**
* crypto_kpp_generate_public_key() - Invoke kpp operation
*
* Function invokes the specific kpp operation for generating the public part
* for a given kpp algorithm.
*
* To generate a private key, the caller should use a random number generator.
* The output of the requested length serves as the private key.
*
* @req: kpp key request
*
* Return: zero on success; error code in case of error
*/
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);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&kpp_get_stat(alg)->generate_public_key_cnt);
- return crypto_kpp_errstat(alg, alg->generate_public_key(req));
+ return crypto_kpp_alg(tfm)->generate_public_key(req);
}
/**
* crypto_kpp_compute_shared_secret() - Invoke kpp operation
*
* Function invokes the specific kpp operation for computing the shared secret
* for a given kpp algorithm.
*
* @req: kpp key request
*
* Return: zero on success; error code in case of error
*/
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);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS))
- atomic64_inc(&kpp_get_stat(alg)->compute_shared_secret_cnt);
- return crypto_kpp_errstat(alg, alg->compute_shared_secret(req));
+ return crypto_kpp_alg(tfm)->compute_shared_secret(req);
}
/**
* crypto_kpp_maxsize() - Get len for output buffer
*
* Function returns the output buffer size required for a given key.
* Function assumes that the key is already set in the transformation. If this
* function is called without a setkey or with a failed setkey, you will end up
* in a NULL dereference.
*
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
index 6abe5102e5fb1..5ac4388f50e13 100644
--- a/include/crypto/rng.h
+++ b/include/crypto/rng.h
@@ -8,72 +8,53 @@
#ifndef _CRYPTO_RNG_H
#define _CRYPTO_RNG_H
#include <linux/atomic.h>
#include <linux/container_of.h>
#include <linux/crypto.h>
struct crypto_rng;
-/*
- * struct crypto_istat_rng: statistics for RNG algorithm
- * @generate_cnt: number of RNG generate requests
- * @generate_tlen: total data size of generated data by the RNG
- * @seed_cnt: number of times the RNG was seeded
- * @err_cnt: number of error for RNG requests
- */
-struct crypto_istat_rng {
- atomic64_t generate_cnt;
- atomic64_t generate_tlen;
- atomic64_t seed_cnt;
- atomic64_t err_cnt;
-};
-
/**
* struct rng_alg - random number generator definition
*
* @generate: The function defined by this variable obtains a
* random number. The random number generator transform
* must generate the random number out of the context
* provided with this call, plus any additional data
* if provided to the call.
* @seed: Seed or reseed the random number generator. With the
* invocation of this function call, the random number
* generator shall become ready for generation. If the
* random number generator requires a seed for setting
* up a new state, the seed must be provided by the
* consumer while invoking this function. The required
* size of the seed is defined with @seedsize .
* @set_ent: Set entropy that would otherwise be obtained from
* entropy source. Internal use only.
- * @stat: Statistics for rng algorithm
* @seedsize: The seed size required for a random number generator
* initialization defined with this variable. Some
* random number generators does not require a seed
* as the seeding is implemented internally without
* the need of support by the consumer. In this case,
* the seed size is set to zero.
* @base: Common crypto API algorithm data structure.
*/
struct rng_alg {
int (*generate)(struct crypto_rng *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int dlen);
int (*seed)(struct crypto_rng *tfm, const u8 *seed, unsigned int slen);
void (*set_ent)(struct crypto_rng *tfm, const u8 *data,
unsigned int len);
-#ifdef CONFIG_CRYPTO_STATS
- struct crypto_istat_rng stat;
-#endif
-
unsigned int seedsize;
struct crypto_alg base;
};
struct crypto_rng {
struct crypto_tfm base;
};
extern struct crypto_rng *crypto_default_rng;
@@ -137,69 +118,39 @@ static inline struct rng_alg *crypto_rng_alg(struct crypto_rng *tfm)
* crypto_free_rng() - zeroize and free RNG handle
* @tfm: cipher handle to be freed
*
* If @tfm is a NULL or error pointer, this function does nothing.
*/
static inline void crypto_free_rng(struct crypto_rng *tfm)
{
crypto_destroy_tfm(tfm, crypto_rng_tfm(tfm));
}
-static inline struct crypto_istat_rng *rng_get_stat(struct rng_alg *alg)
-{
-#ifdef CONFIG_CRYPTO_STATS
- return &alg->stat;
-#else
- return NULL;
-#endif
-}
-
-static inline int crypto_rng_errstat(struct rng_alg *alg, int err)
-{
- if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
- return err;
-
- if (err && err != -EINPROGRESS && err != -EBUSY)
- atomic64_inc(&rng_get_stat(alg)->err_cnt);
-
- return err;
-}
-
/**
* crypto_rng_generate() - get random number
* @tfm: cipher handle
* @src: Input buffer holding additional data, may be NULL
* @slen: Length of additional data
* @dst: output buffer holding the random numbers
* @dlen: length of the output buffer
*
* This function fills the caller-allocated buffer with random
* numbers using the random number generator referenced by the
* cipher handle.
*
* Return: 0 function was successful; < 0 if an error occurred
*/
static inline int crypto_rng_generate(struct crypto_rng *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int dlen)
{
- struct rng_alg *alg = crypto_rng_alg(tfm);
-
- if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
- struct crypto_istat_rng *istat = rng_get_stat(alg);
-
- atomic64_inc(&istat->generate_cnt);
- atomic64_add(dlen, &istat->generate_tlen);
- }
-
- return crypto_rng_errstat(alg,
- alg->generate(tfm, src, slen, dst, dlen));
+ return crypto_rng_alg(tfm)->generate(tfm, src, slen, dst, dlen);
}
/**
* crypto_rng_get_bytes() - get random number
* @tfm: cipher handle
* @rdata: output buffer holding the random numbers
* @dlen: length of the output buffer
*
* This function fills the caller-allocated buffer with random numbers using the
* random number generator referenced by the cipher handle.
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index c8857d7bdb37f..74d47e23374e6 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -57,71 +57,46 @@ struct crypto_skcipher {
};
struct crypto_sync_skcipher {
struct crypto_skcipher base;
};
struct crypto_lskcipher {
struct crypto_tfm base;
};
-/*
- * struct crypto_istat_cipher - statistics for cipher algorithm
- * @encrypt_cnt: number of encrypt requests
- * @encrypt_tlen: total data size handled by encrypt requests
- * @decrypt_cnt: number of decrypt requests
- * @decrypt_tlen: total data size handled by decrypt requests
- * @err_cnt: number of error for cipher requests
- */
-struct crypto_istat_cipher {
- atomic64_t encrypt_cnt;
- atomic64_t encrypt_tlen;
- atomic64_t decrypt_cnt;
- atomic64_t decrypt_tlen;
- atomic64_t err_cnt;
-};
-
-#ifdef CONFIG_CRYPTO_STATS
-#define SKCIPHER_ALG_COMMON_STAT struct crypto_istat_cipher stat;
-#else
-#define SKCIPHER_ALG_COMMON_STAT
-#endif
-
/*
* struct skcipher_alg_common - common properties of skcipher_alg
* @min_keysize: Minimum key size supported by the transformation. This is the
* smallest key length supported by this transformation algorithm.
* This must be set to one of the pre-defined values as this is
* not hardware specific. Possible values for this field can be
* found via git grep "_MIN_KEY_SIZE" include/crypto/
* @max_keysize: Maximum key size supported by the transformation. This is the
* largest key length supported by this transformation algorithm.
* This must be set to one of the pre-defined values as this is
* not hardware specific. Possible values for this field can be
* found via git grep "_MAX_KEY_SIZE" include/crypto/
* @ivsize: IV size applicable for transformation. The consumer must provide an
* IV of exactly that size to perform the encrypt or decrypt operation.
* @chunksize: Equal to the block size except for stream ciphers such as
* CTR where it is set to the underlying block size.
* @statesize: Size of the internal state for the algorithm.
- * @stat: Statistics for cipher algorithm
* @base: Definition of a generic crypto algorithm.
*/
#define SKCIPHER_ALG_COMMON { \
unsigned int min_keysize; \
unsigned int max_keysize; \
unsigned int ivsize; \
unsigned int chunksize; \
unsigned int statesize; \
\
- SKCIPHER_ALG_COMMON_STAT \
- \
struct crypto_alg base; \
}
struct skcipher_alg_common SKCIPHER_ALG_COMMON;
/**
* struct skcipher_alg - symmetric key cipher definition
* @setkey: Set key for the transformation. This function is used to either
* program a supplied key into the hardware or store the key in the
* transformation context for programming it later. Note that this
* function does modify the transformation context. This function can
diff --git a/include/uapi/linux/cryptouser.h b/include/uapi/linux/cryptouser.h
index 5730c67f0617c..e163670d60f7d 100644
--- a/include/uapi/linux/cryptouser.h
+++ b/include/uapi/linux/cryptouser.h
@@ -47,106 +47,114 @@ enum crypto_attr_type_t {
CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */
CRYPTOCFGA_REPORT_HASH, /* struct crypto_report_hash */
CRYPTOCFGA_REPORT_BLKCIPHER, /* struct crypto_report_blkcipher */
CRYPTOCFGA_REPORT_AEAD, /* struct crypto_report_aead */
CRYPTOCFGA_REPORT_COMPRESS, /* struct crypto_report_comp */
CRYPTOCFGA_REPORT_RNG, /* struct crypto_report_rng */
CRYPTOCFGA_REPORT_CIPHER, /* struct crypto_report_cipher */
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_STAT_LARVAL, /* No longer supported */
+ CRYPTOCFGA_STAT_HASH, /* No longer supported */
+ CRYPTOCFGA_STAT_BLKCIPHER, /* No longer supported */
+ CRYPTOCFGA_STAT_AEAD, /* No longer supported */
+ CRYPTOCFGA_STAT_COMPRESS, /* No longer supported */
+ CRYPTOCFGA_STAT_RNG, /* No longer supported */
+ CRYPTOCFGA_STAT_CIPHER, /* No longer supported */
+ CRYPTOCFGA_STAT_AKCIPHER, /* No longer supported */
+ CRYPTOCFGA_STAT_KPP, /* No longer supported */
+ CRYPTOCFGA_STAT_ACOMP, /* No longer supported */
__CRYPTOCFGA_MAX
#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
};
struct crypto_user_alg {
char cru_name[CRYPTO_MAX_NAME];
char cru_driver_name[CRYPTO_MAX_NAME];
char cru_module_name[CRYPTO_MAX_NAME];
__u32 cru_type;
__u32 cru_mask;
__u32 cru_refcnt;
__u32 cru_flags;
};
+/* No longer supported, do not use. */
struct crypto_stat_aead {
char type[CRYPTO_MAX_NAME];
__u64 stat_encrypt_cnt;
__u64 stat_encrypt_tlen;
__u64 stat_decrypt_cnt;
__u64 stat_decrypt_tlen;
__u64 stat_err_cnt;
};
+/* No longer supported, do not use. */
struct crypto_stat_akcipher {
char type[CRYPTO_MAX_NAME];
__u64 stat_encrypt_cnt;
__u64 stat_encrypt_tlen;
__u64 stat_decrypt_cnt;
__u64 stat_decrypt_tlen;
__u64 stat_verify_cnt;
__u64 stat_sign_cnt;
__u64 stat_err_cnt;
};
+/* No longer supported, do not use. */
struct crypto_stat_cipher {
char type[CRYPTO_MAX_NAME];
__u64 stat_encrypt_cnt;
__u64 stat_encrypt_tlen;
__u64 stat_decrypt_cnt;
__u64 stat_decrypt_tlen;
__u64 stat_err_cnt;
};
+/* No longer supported, do not use. */
struct crypto_stat_compress {
char type[CRYPTO_MAX_NAME];
__u64 stat_compress_cnt;
__u64 stat_compress_tlen;
__u64 stat_decompress_cnt;
__u64 stat_decompress_tlen;
__u64 stat_err_cnt;
};
+/* No longer supported, do not use. */
struct crypto_stat_hash {
char type[CRYPTO_MAX_NAME];
__u64 stat_hash_cnt;
__u64 stat_hash_tlen;
__u64 stat_err_cnt;
};
+/* No longer supported, do not use. */
struct crypto_stat_kpp {
char type[CRYPTO_MAX_NAME];
__u64 stat_setsecret_cnt;
__u64 stat_generate_public_key_cnt;
__u64 stat_compute_shared_secret_cnt;
__u64 stat_err_cnt;
};
+/* No longer supported, do not use. */
struct crypto_stat_rng {
char type[CRYPTO_MAX_NAME];
__u64 stat_generate_cnt;
__u64 stat_generate_tlen;
__u64 stat_seed_cnt;
__u64 stat_err_cnt;
};
+/* No longer supported, do not use. */
struct crypto_stat_larval {
char type[CRYPTO_MAX_NAME];
};
struct crypto_report_larval {
char type[CRYPTO_MAX_NAME];
};
struct crypto_report_hash {
char type[CRYPTO_MAX_NAME];
base-commit: 7d42e097607c4d246d99225bf2b195b6167a210c
--
2.43.2
On Fri, 23 Feb 2024 at 10:06, Eric Biggers <[email protected]> wrote:
>
> From: Eric Biggers <[email protected]>
>
> Remove support for the "Crypto usage statistics" feature
> (CONFIG_CRYPTO_STATS). This feature does not appear to have ever been
> used, and it is harmful because it significantly reduces performance and
> is a large maintenance burden.
>
> Covering each of these points in detail:
>
> 1. Feature is not being used
>
> Since these generic crypto statistics are only readable using netlink,
> it's fairly straightforward to look for programs that use them. I'm
> unable to find any evidence that any such programs exist. For example,
> Debian Code Search returns no hits except the kernel header and kernel
> code itself and translations of the kernel header:
> https://codesearch.debian.net/search?q=CRYPTOCFGA_STAT&literal=1&perpkg=1
>
> The patch series that added this feature in 2018
> (https://lore.kernel.org/linux-crypto/[email protected]/)
> said "The goal is to have an ifconfig for crypto device." This doesn't
> appear to have happened.
>
> It's not clear that there is real demand for crypto statistics. Just
> because the kernel provides other types of statistics such as I/O and
> networking statistics and some people find those useful does not mean
> that crypto statistics are useful too.
>
> Further evidence that programs are not using CONFIG_CRYPTO_STATS is that
> it was able to be disabled in RHEL and Fedora as a bug fix
> (https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/2947).
>
> Even further evidence comes from the fact that there are and have been
> bugs in how the stats work, but they were never reported. For example,
> before Linux v6.7 hash stats were double-counted in most cases.
>
> There has also never been any documentation for this feature, so it
> might be hard to use even if someone wanted to.
>
> 2. CONFIG_CRYPTO_STATS significantly reduces performance
>
> Enabling CONFIG_CRYPTO_STATS significantly reduces the performance of
> the crypto API, even if no program ever retrieves the statistics. This
> primarily affects systems with large number of CPUs. For example,
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2039576 reported
> that Lustre client encryption performance improved from 21.7GB/s to
> 48.2GB/s by disabling CONFIG_CRYPTO_STATS.
>
> It can be argued that this means that CONFIG_CRYPTO_STATS should be
> optimized with per-cpu counters similar to many of the networking
> counters. But no one has done this in 5+ years. This is consistent
> with the fact that the feature appears to be unused, so there seems to
> be little interest in improving it as opposed to just disabling it.
>
> It can be argued that because CONFIG_CRYPTO_STATS is off by default,
> performance doesn't matter. But Linux distros tend to error on the side
> of enabling options. The option is enabled in Ubuntu and Arch Linux,
> and until recently was enabled in RHEL and Fedora (see above). So, even
> just having the option available is harmful to users.
>
> 3. CONFIG_CRYPTO_STATS is a large maintenance burden
>
> There are over 1000 lines of code associated with CONFIG_CRYPTO_STATS,
> spread among 32 files. It significantly complicates much of the
> implementation of the crypto API. After the initial submission, many
> fixes and refactorings have consumed effort of multiple people to keep
> this feature "working". We should be spending this effort elsewhere.
>
> Cc: Corentin Labbe <[email protected]>
> Signed-off-by: Eric Biggers <[email protected]>
I appreciate the effort that went into creating this, in an attempt to
contribute something useful. However, I agree with every point in
Eric's analysis, and so I also feel it would be better to retire it.
Acked-by: Ard Biesheuvel <[email protected]>
> ---
> arch/s390/configs/debug_defconfig | 1 -
> arch/s390/configs/defconfig | 1 -
> crypto/Kconfig | 20 ---
> crypto/Makefile | 2 -
> crypto/acompress.c | 47 +----
> crypto/aead.c | 84 +--------
> crypto/ahash.c | 63 +------
> crypto/akcipher.c | 31 ----
> crypto/compress.h | 5 -
> crypto/{crypto_user_base.c => crypto_user.c} | 10 +-
> crypto/crypto_user_stat.c | 176 -------------------
> crypto/hash.h | 30 ----
> crypto/kpp.c | 30 ----
> crypto/lskcipher.c | 73 +-------
> crypto/rng.c | 44 +----
> crypto/scompress.c | 8 +-
> crypto/shash.c | 75 +-------
> crypto/sig.c | 13 --
> crypto/skcipher.c | 86 +--------
> crypto/skcipher.h | 10 --
> include/crypto/acompress.h | 90 +---------
> include/crypto/aead.h | 21 ---
> include/crypto/akcipher.h | 78 +-------
> include/crypto/algapi.h | 3 -
> include/crypto/hash.h | 22 ---
> include/crypto/internal/acompress.h | 7 +-
> include/crypto/internal/cryptouser.h | 16 --
> include/crypto/internal/scompress.h | 8 +-
> include/crypto/kpp.h | 58 +-----
> include/crypto/rng.h | 51 +-----
> include/crypto/skcipher.h | 25 ---
> include/uapi/linux/cryptouser.h | 28 +--
> 32 files changed, 77 insertions(+), 1139 deletions(-)
> rename crypto/{crypto_user_base.c => crypto_user.c} (98%)
> delete mode 100644 crypto/crypto_user_stat.c
> delete mode 100644 include/crypto/internal/cryptouser.h
>
> diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig
> index cae2dd34fbb49..063f0c11087dd 100644
> --- a/arch/s390/configs/debug_defconfig
> +++ b/arch/s390/configs/debug_defconfig
> @@ -759,21 +759,20 @@ CONFIG_CRYPTO_XCBC=m
> CONFIG_CRYPTO_CRC32=m
> CONFIG_CRYPTO_842=m
> CONFIG_CRYPTO_LZ4=m
> CONFIG_CRYPTO_LZ4HC=m
> CONFIG_CRYPTO_ZSTD=m
> CONFIG_CRYPTO_ANSI_CPRNG=m
> CONFIG_CRYPTO_USER_API_HASH=m
> CONFIG_CRYPTO_USER_API_SKCIPHER=m
> CONFIG_CRYPTO_USER_API_RNG=m
> CONFIG_CRYPTO_USER_API_AEAD=m
> -CONFIG_CRYPTO_STATS=y
> CONFIG_CRYPTO_CRC32_S390=y
> CONFIG_CRYPTO_SHA512_S390=m
> CONFIG_CRYPTO_SHA1_S390=m
> CONFIG_CRYPTO_SHA256_S390=m
> CONFIG_CRYPTO_SHA3_256_S390=m
> CONFIG_CRYPTO_SHA3_512_S390=m
> CONFIG_CRYPTO_GHASH_S390=m
> CONFIG_CRYPTO_AES_S390=m
> CONFIG_CRYPTO_DES_S390=m
> CONFIG_CRYPTO_CHACHA_S390=m
> diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig
> index 42b988873e544..ab608ce768b7b 100644
> --- a/arch/s390/configs/defconfig
> +++ b/arch/s390/configs/defconfig
> @@ -745,21 +745,20 @@ CONFIG_CRYPTO_XCBC=m
> CONFIG_CRYPTO_CRC32=m
> CONFIG_CRYPTO_842=m
> CONFIG_CRYPTO_LZ4=m
> CONFIG_CRYPTO_LZ4HC=m
> CONFIG_CRYPTO_ZSTD=m
> CONFIG_CRYPTO_ANSI_CPRNG=m
> CONFIG_CRYPTO_USER_API_HASH=m
> CONFIG_CRYPTO_USER_API_SKCIPHER=m
> CONFIG_CRYPTO_USER_API_RNG=m
> CONFIG_CRYPTO_USER_API_AEAD=m
> -CONFIG_CRYPTO_STATS=y
> CONFIG_CRYPTO_CRC32_S390=y
> CONFIG_CRYPTO_SHA512_S390=m
> CONFIG_CRYPTO_SHA1_S390=m
> CONFIG_CRYPTO_SHA256_S390=m
> CONFIG_CRYPTO_SHA3_256_S390=m
> CONFIG_CRYPTO_SHA3_512_S390=m
> CONFIG_CRYPTO_GHASH_S390=m
> CONFIG_CRYPTO_AES_S390=m
> CONFIG_CRYPTO_DES_S390=m
> CONFIG_CRYPTO_CHACHA_S390=m
> diff --git a/crypto/Kconfig b/crypto/Kconfig
> index 7d156c75f15f2..4980b1ceb21f6 100644
> --- a/crypto/Kconfig
> +++ b/crypto/Kconfig
> @@ -1448,40 +1448,20 @@ config CRYPTO_USER_API_AEAD
>
> config CRYPTO_USER_API_ENABLE_OBSOLETE
> bool "Obsolete cryptographic algorithms"
> depends on CRYPTO_USER_API
> default y
> help
> Allow obsolete cryptographic algorithms to be selected that have
> already been phased out from internal use by the kernel, and are
> only useful for userspace clients that still rely on them.
>
> -config CRYPTO_STATS
> - bool "Crypto usage statistics"
> - depends on CRYPTO_USER
> - help
> - Enable the gathering of crypto stats.
> -
> - Enabling this option reduces the performance of the crypto API. It
> - should only be enabled when there is actually a use case for it.
> -
> - This collects data sizes, numbers of requests, and numbers
> - of errors processed by:
> - - AEAD ciphers (encrypt, decrypt)
> - - asymmetric key ciphers (encrypt, decrypt, verify, sign)
> - - symmetric key ciphers (encrypt, decrypt)
> - - compression algorithms (compress, decompress)
> - - hash algorithms (hash)
> - - key-agreement protocol primitives (setsecret, generate
> - public key, compute shared secret)
> - - RNG (generate, seed)
> -
> endmenu
>
> config CRYPTO_HASH_INFO
> bool
>
> if !KMSAN # avoid false positives from assembly
> if ARM
> source "arch/arm/crypto/Kconfig"
> endif
> if ARM64
> diff --git a/crypto/Makefile b/crypto/Makefile
> index 408f0a1f9ab91..de9a3312a2c84 100644
> --- a/crypto/Makefile
> +++ b/crypto/Makefile
> @@ -62,22 +62,20 @@ ecdsa_generic-y += ecdsasignature.asn1.o
> obj-$(CONFIG_CRYPTO_ECDSA) += ecdsa_generic.o
>
> crypto_acompress-y := acompress.o
> crypto_acompress-y += scompress.o
> obj-$(CONFIG_CRYPTO_ACOMP2) += crypto_acompress.o
>
> cryptomgr-y := algboss.o testmgr.o
>
> obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o
> obj-$(CONFIG_CRYPTO_USER) += crypto_user.o
> -crypto_user-y := crypto_user_base.o
> -crypto_user-$(CONFIG_CRYPTO_STATS) += crypto_user_stat.o
> obj-$(CONFIG_CRYPTO_CMAC) += cmac.o
> obj-$(CONFIG_CRYPTO_HMAC) += hmac.o
> obj-$(CONFIG_CRYPTO_VMAC) += vmac.o
> obj-$(CONFIG_CRYPTO_XCBC) += xcbc.o
> obj-$(CONFIG_CRYPTO_NULL2) += crypto_null.o
> obj-$(CONFIG_CRYPTO_MD4) += md4.o
> obj-$(CONFIG_CRYPTO_MD5) += md5.o
> obj-$(CONFIG_CRYPTO_RMD160) += rmd160.o
> obj-$(CONFIG_CRYPTO_SHA1) += sha1_generic.o
> obj-$(CONFIG_CRYPTO_SHA256) += sha256_generic.o
> diff --git a/crypto/acompress.c b/crypto/acompress.c
> index 1c682810a484d..484a865b23cd8 100644
> --- a/crypto/acompress.c
> +++ b/crypto/acompress.c
> @@ -18,21 +18,21 @@
> #include <net/netlink.h>
>
> #include "compress.h"
>
> struct crypto_scomp;
>
> static const struct crypto_type crypto_acomp_type;
>
> static inline struct acomp_alg *__crypto_acomp_alg(struct crypto_alg *alg)
> {
> - return container_of(alg, struct acomp_alg, calg.base);
> + return container_of(alg, struct acomp_alg, base);
> }
>
> static inline struct acomp_alg *crypto_acomp_alg(struct crypto_acomp *tfm)
> {
> return __crypto_acomp_alg(crypto_acomp_tfm(tfm)->__crt_alg);
> }
>
> static int __maybe_unused crypto_acomp_report(
> struct sk_buff *skb, struct crypto_alg *alg)
> {
> @@ -86,57 +86,28 @@ static int crypto_acomp_init_tfm(struct crypto_tfm *tfm)
> static unsigned int crypto_acomp_extsize(struct crypto_alg *alg)
> {
> int extsize = crypto_alg_extsize(alg);
>
> if (alg->cra_type != &crypto_acomp_type)
> extsize += sizeof(struct crypto_scomp *);
>
> return extsize;
> }
>
> -static inline int __crypto_acomp_report_stat(struct sk_buff *skb,
> - struct crypto_alg *alg)
> -{
> - struct comp_alg_common *calg = __crypto_comp_alg_common(alg);
> - struct crypto_istat_compress *istat = comp_get_stat(calg);
> - struct crypto_stat_compress racomp;
> -
> - memset(&racomp, 0, sizeof(racomp));
> -
> - strscpy(racomp.type, "acomp", sizeof(racomp.type));
> - racomp.stat_compress_cnt = atomic64_read(&istat->compress_cnt);
> - racomp.stat_compress_tlen = atomic64_read(&istat->compress_tlen);
> - racomp.stat_decompress_cnt = atomic64_read(&istat->decompress_cnt);
> - racomp.stat_decompress_tlen = atomic64_read(&istat->decompress_tlen);
> - racomp.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_ACOMP, sizeof(racomp), &racomp);
> -}
> -
> -#ifdef CONFIG_CRYPTO_STATS
> -int crypto_acomp_report_stat(struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - return __crypto_acomp_report_stat(skb, alg);
> -}
> -#endif
> -
> static const struct crypto_type crypto_acomp_type = {
> .extsize = crypto_acomp_extsize,
> .init_tfm = crypto_acomp_init_tfm,
> #ifdef CONFIG_PROC_FS
> .show = crypto_acomp_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_acomp_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_acomp_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_ACOMPRESS_MASK,
> .type = CRYPTO_ALG_TYPE_ACOMPRESS,
> .tfmsize = offsetof(struct crypto_acomp, base),
> };
>
> struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
> u32 mask)
> {
> @@ -175,38 +146,26 @@ void acomp_request_free(struct acomp_req *req)
>
> if (req->flags & CRYPTO_ACOMP_ALLOC_OUTPUT) {
> acomp->dst_free(req->dst);
> req->dst = NULL;
> }
>
> __acomp_request_free(req);
> }
> EXPORT_SYMBOL_GPL(acomp_request_free);
>
> -void comp_prepare_alg(struct comp_alg_common *alg)
> -{
> - struct crypto_istat_compress *istat = comp_get_stat(alg);
> - struct crypto_alg *base = &alg->base;
> -
> - base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - memset(istat, 0, sizeof(*istat));
> -}
> -
> int crypto_register_acomp(struct acomp_alg *alg)
> {
> - struct crypto_alg *base = &alg->calg.base;
> -
> - comp_prepare_alg(&alg->calg);
> + struct crypto_alg *base = &alg->base;
>
> base->cra_type = &crypto_acomp_type;
> + base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
> base->cra_flags |= CRYPTO_ALG_TYPE_ACOMPRESS;
>
> return crypto_register_alg(base);
> }
> EXPORT_SYMBOL_GPL(crypto_register_acomp);
>
> void crypto_unregister_acomp(struct acomp_alg *alg)
> {
> crypto_unregister_alg(&alg->base);
> }
> diff --git a/crypto/aead.c b/crypto/aead.c
> index 54906633566a2..0e75a69189df4 100644
> --- a/crypto/aead.c
> +++ b/crypto/aead.c
> @@ -13,29 +13,20 @@
> #include <linux/init.h>
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/slab.h>
> #include <linux/seq_file.h>
> #include <linux/string.h>
> #include <net/netlink.h>
>
> #include "internal.h"
>
> -static inline struct crypto_istat_aead *aead_get_stat(struct aead_alg *alg)
> -{
> -#ifdef CONFIG_CRYPTO_STATS
> - return &alg->stat;
> -#else
> - return NULL;
> -#endif
> -}
> -
> static int setkey_unaligned(struct crypto_aead *tfm, const u8 *key,
> unsigned int keylen)
> {
> unsigned long alignmask = crypto_aead_alignmask(tfm);
> int ret;
> u8 *buffer, *alignbuffer;
> unsigned long absize;
>
> absize = keylen + alignmask;
> buffer = kmalloc(absize, GFP_ATOMIC);
> @@ -83,76 +74,42 @@ int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
> err = crypto_aead_alg(tfm)->setauthsize(tfm, authsize);
> if (err)
> return err;
> }
>
> tfm->authsize = authsize;
> return 0;
> }
> EXPORT_SYMBOL_GPL(crypto_aead_setauthsize);
>
> -static inline int crypto_aead_errstat(struct crypto_istat_aead *istat, int err)
> -{
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err && err != -EINPROGRESS && err != -EBUSY)
> - atomic64_inc(&istat->err_cnt);
> -
> - return err;
> -}
> -
> int crypto_aead_encrypt(struct aead_request *req)
> {
> struct crypto_aead *aead = crypto_aead_reqtfm(req);
> - struct aead_alg *alg = crypto_aead_alg(aead);
> - struct crypto_istat_aead *istat;
> - int ret;
> -
> - istat = aead_get_stat(alg);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - atomic64_inc(&istat->encrypt_cnt);
> - atomic64_add(req->cryptlen, &istat->encrypt_tlen);
> - }
>
> if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
> - ret = -ENOKEY;
> - else
> - ret = alg->encrypt(req);
> + return -ENOKEY;
>
> - return crypto_aead_errstat(istat, ret);
> + return crypto_aead_alg(aead)->encrypt(req);
> }
> EXPORT_SYMBOL_GPL(crypto_aead_encrypt);
>
> int crypto_aead_decrypt(struct aead_request *req)
> {
> struct crypto_aead *aead = crypto_aead_reqtfm(req);
> - struct aead_alg *alg = crypto_aead_alg(aead);
> - struct crypto_istat_aead *istat;
> - int ret;
> -
> - istat = aead_get_stat(alg);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - atomic64_inc(&istat->encrypt_cnt);
> - atomic64_add(req->cryptlen, &istat->encrypt_tlen);
> - }
>
> if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
> - ret = -ENOKEY;
> - else if (req->cryptlen < crypto_aead_authsize(aead))
> - ret = -EINVAL;
> - else
> - ret = alg->decrypt(req);
> + return -ENOKEY;
> +
> + if (req->cryptlen < crypto_aead_authsize(aead))
> + return -EINVAL;
>
> - return crypto_aead_errstat(istat, ret);
> + return crypto_aead_alg(aead)->decrypt(req);
> }
> EXPORT_SYMBOL_GPL(crypto_aead_decrypt);
>
> static void crypto_aead_exit_tfm(struct crypto_tfm *tfm)
> {
> struct crypto_aead *aead = __crypto_aead_cast(tfm);
> struct aead_alg *alg = crypto_aead_alg(aead);
>
> alg->exit(aead);
> }
> @@ -208,52 +165,29 @@ static void crypto_aead_show(struct seq_file *m, struct crypto_alg *alg)
> seq_printf(m, "geniv : <none>\n");
> }
>
> static void crypto_aead_free_instance(struct crypto_instance *inst)
> {
> struct aead_instance *aead = aead_instance(inst);
>
> aead->free(aead);
> }
>
> -static int __maybe_unused crypto_aead_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct aead_alg *aead = container_of(alg, struct aead_alg, base);
> - struct crypto_istat_aead *istat = aead_get_stat(aead);
> - struct crypto_stat_aead raead;
> -
> - memset(&raead, 0, sizeof(raead));
> -
> - strscpy(raead.type, "aead", sizeof(raead.type));
> -
> - raead.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
> - raead.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
> - raead.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
> - raead.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
> - raead.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_AEAD, sizeof(raead), &raead);
> -}
> -
> static const struct crypto_type crypto_aead_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_aead_init_tfm,
> .free = crypto_aead_free_instance,
> #ifdef CONFIG_PROC_FS
> .show = crypto_aead_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_aead_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_aead_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_MASK,
> .type = CRYPTO_ALG_TYPE_AEAD,
> .tfmsize = offsetof(struct crypto_aead, base),
> };
>
> int crypto_grab_aead(struct crypto_aead_spawn *spawn,
> struct crypto_instance *inst,
> const char *name, u32 type, u32 mask)
> @@ -270,37 +204,33 @@ struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask)
> EXPORT_SYMBOL_GPL(crypto_alloc_aead);
>
> int crypto_has_aead(const char *alg_name, u32 type, u32 mask)
> {
> return crypto_type_has_alg(alg_name, &crypto_aead_type, type, mask);
> }
> EXPORT_SYMBOL_GPL(crypto_has_aead);
>
> static int aead_prepare_alg(struct aead_alg *alg)
> {
> - struct crypto_istat_aead *istat = aead_get_stat(alg);
> struct crypto_alg *base = &alg->base;
>
> if (max3(alg->maxauthsize, alg->ivsize, alg->chunksize) >
> PAGE_SIZE / 8)
> return -EINVAL;
>
> if (!alg->chunksize)
> alg->chunksize = base->cra_blocksize;
>
> base->cra_type = &crypto_aead_type;
> base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
> base->cra_flags |= CRYPTO_ALG_TYPE_AEAD;
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - memset(istat, 0, sizeof(*istat));
> -
> return 0;
> }
>
> int crypto_register_aead(struct aead_alg *alg)
> {
> struct crypto_alg *base = &alg->base;
> int err;
>
> err = aead_prepare_alg(alg);
> if (err)
> diff --git a/crypto/ahash.c b/crypto/ahash.c
> index 0ac83f7f701df..bcd9de009a91b 100644
> --- a/crypto/ahash.c
> +++ b/crypto/ahash.c
> @@ -20,36 +20,20 @@
> #include <linux/sched.h>
> #include <linux/slab.h>
> #include <linux/seq_file.h>
> #include <linux/string.h>
> #include <net/netlink.h>
>
> #include "hash.h"
>
> #define CRYPTO_ALG_TYPE_AHASH_MASK 0x0000000e
>
> -static inline struct crypto_istat_hash *ahash_get_stat(struct ahash_alg *alg)
> -{
> - return hash_get_stat(&alg->halg);
> -}
> -
> -static inline int crypto_ahash_errstat(struct ahash_alg *alg, int err)
> -{
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err && err != -EINPROGRESS && err != -EBUSY)
> - atomic64_inc(&ahash_get_stat(alg)->err_cnt);
> -
> - return err;
> -}
> -
> /*
> * For an ahash tfm that is using an shash algorithm (instead of an ahash
> * algorithm), this returns the underlying shash tfm.
> */
> static inline struct crypto_shash *ahash_to_shash(struct crypto_ahash *tfm)
> {
> return *(struct crypto_shash **)crypto_ahash_ctx(tfm);
> }
>
> static inline struct shash_desc *prepare_shash_desc(struct ahash_request *req,
> @@ -337,89 +321,61 @@ static void ahash_restore_req(struct ahash_request *req, int err)
> crypto_ahash_digestsize(crypto_ahash_reqtfm(req)));
>
> req->priv = NULL;
>
> kfree_sensitive(subreq);
> }
>
> int crypto_ahash_update(struct ahash_request *req)
> {
> struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
> - struct ahash_alg *alg;
>
> if (likely(tfm->using_shash))
> return shash_ahash_update(req, ahash_request_ctx(req));
>
> - alg = crypto_ahash_alg(tfm);
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_add(req->nbytes, &ahash_get_stat(alg)->hash_tlen);
> - return crypto_ahash_errstat(alg, alg->update(req));
> + return crypto_ahash_alg(tfm)->update(req);
> }
> EXPORT_SYMBOL_GPL(crypto_ahash_update);
>
> int crypto_ahash_final(struct ahash_request *req)
> {
> struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
> - struct ahash_alg *alg;
>
> if (likely(tfm->using_shash))
> return crypto_shash_final(ahash_request_ctx(req), req->result);
>
> - alg = crypto_ahash_alg(tfm);
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&ahash_get_stat(alg)->hash_cnt);
> - return crypto_ahash_errstat(alg, alg->final(req));
> + return crypto_ahash_alg(tfm)->final(req);
> }
> EXPORT_SYMBOL_GPL(crypto_ahash_final);
>
> int crypto_ahash_finup(struct ahash_request *req)
> {
> struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
> - struct ahash_alg *alg;
>
> if (likely(tfm->using_shash))
> return shash_ahash_finup(req, ahash_request_ctx(req));
>
> - alg = crypto_ahash_alg(tfm);
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_hash *istat = ahash_get_stat(alg);
> -
> - atomic64_inc(&istat->hash_cnt);
> - atomic64_add(req->nbytes, &istat->hash_tlen);
> - }
> - return crypto_ahash_errstat(alg, alg->finup(req));
> + return crypto_ahash_alg(tfm)->finup(req);
> }
> EXPORT_SYMBOL_GPL(crypto_ahash_finup);
>
> int crypto_ahash_digest(struct ahash_request *req)
> {
> struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
> - struct ahash_alg *alg;
> - int err;
>
> if (likely(tfm->using_shash))
> return shash_ahash_digest(req, prepare_shash_desc(req, tfm));
>
> - alg = crypto_ahash_alg(tfm);
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_hash *istat = ahash_get_stat(alg);
> -
> - atomic64_inc(&istat->hash_cnt);
> - atomic64_add(req->nbytes, &istat->hash_tlen);
> - }
> -
> if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
> - err = -ENOKEY;
> - else
> - err = alg->digest(req);
> + return -ENOKEY;
>
> - return crypto_ahash_errstat(alg, err);
> + return crypto_ahash_alg(tfm)->digest(req);
> }
> EXPORT_SYMBOL_GPL(crypto_ahash_digest);
>
> static void ahash_def_finup_done2(void *data, int err)
> {
> struct ahash_request *areq = data;
>
> if (err == -EINPROGRESS)
> return;
>
> @@ -564,38 +520,29 @@ static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
> static void crypto_ahash_show(struct seq_file *m, struct crypto_alg *alg)
> {
> seq_printf(m, "type : ahash\n");
> seq_printf(m, "async : %s\n", alg->cra_flags & CRYPTO_ALG_ASYNC ?
> "yes" : "no");
> seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
> seq_printf(m, "digestsize : %u\n",
> __crypto_hash_alg_common(alg)->digestsize);
> }
>
> -static int __maybe_unused crypto_ahash_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - return crypto_hash_report_stat(skb, alg, "ahash");
> -}
> -
> static const struct crypto_type crypto_ahash_type = {
> .extsize = crypto_ahash_extsize,
> .init_tfm = crypto_ahash_init_tfm,
> .free = crypto_ahash_free_instance,
> #ifdef CONFIG_PROC_FS
> .show = crypto_ahash_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_ahash_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_ahash_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_AHASH_MASK,
> .type = CRYPTO_ALG_TYPE_AHASH,
> .tfmsize = offsetof(struct crypto_ahash, base),
> };
>
> int crypto_grab_ahash(struct crypto_ahash_spawn *spawn,
> struct crypto_instance *inst,
> const char *name, u32 type, u32 mask)
> diff --git a/crypto/akcipher.c b/crypto/akcipher.c
> index 52813f0b19e4e..e0ff5f4dda6d6 100644
> --- a/crypto/akcipher.c
> +++ b/crypto/akcipher.c
> @@ -63,56 +63,29 @@ static int crypto_akcipher_init_tfm(struct crypto_tfm *tfm)
> return 0;
> }
>
> static void crypto_akcipher_free_instance(struct crypto_instance *inst)
> {
> struct akcipher_instance *akcipher = akcipher_instance(inst);
>
> akcipher->free(akcipher);
> }
>
> -static int __maybe_unused crypto_akcipher_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct akcipher_alg *akcipher = __crypto_akcipher_alg(alg);
> - struct crypto_istat_akcipher *istat;
> - struct crypto_stat_akcipher rakcipher;
> -
> - istat = akcipher_get_stat(akcipher);
> -
> - memset(&rakcipher, 0, sizeof(rakcipher));
> -
> - strscpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
> - rakcipher.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
> - rakcipher.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
> - rakcipher.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
> - rakcipher.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
> - rakcipher.stat_sign_cnt = atomic64_read(&istat->sign_cnt);
> - rakcipher.stat_verify_cnt = atomic64_read(&istat->verify_cnt);
> - rakcipher.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER,
> - sizeof(rakcipher), &rakcipher);
> -}
> -
> static const struct crypto_type crypto_akcipher_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_akcipher_init_tfm,
> .free = crypto_akcipher_free_instance,
> #ifdef CONFIG_PROC_FS
> .show = crypto_akcipher_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_akcipher_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_akcipher_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_AHASH_MASK,
> .type = CRYPTO_ALG_TYPE_AKCIPHER,
> .tfmsize = offsetof(struct crypto_akcipher, base),
> };
>
> int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn,
> struct crypto_instance *inst,
> const char *name, u32 type, u32 mask)
> @@ -124,29 +97,25 @@ EXPORT_SYMBOL_GPL(crypto_grab_akcipher);
>
> struct crypto_akcipher *crypto_alloc_akcipher(const char *alg_name, u32 type,
> u32 mask)
> {
> return crypto_alloc_tfm(alg_name, &crypto_akcipher_type, type, mask);
> }
> EXPORT_SYMBOL_GPL(crypto_alloc_akcipher);
>
> static void akcipher_prepare_alg(struct akcipher_alg *alg)
> {
> - struct crypto_istat_akcipher *istat = akcipher_get_stat(alg);
> struct crypto_alg *base = &alg->base;
>
> base->cra_type = &crypto_akcipher_type;
> base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
> base->cra_flags |= CRYPTO_ALG_TYPE_AKCIPHER;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - memset(istat, 0, sizeof(*istat));
> }
>
> static int akcipher_default_op(struct akcipher_request *req)
> {
> return -ENOSYS;
> }
>
> static int akcipher_default_set_key(struct crypto_akcipher *tfm,
> const void *key, unsigned int keylen)
> {
> diff --git a/crypto/compress.h b/crypto/compress.h
> index 19f65516d699c..23ea43810810c 100644
> --- a/crypto/compress.h
> +++ b/crypto/compress.h
> @@ -5,22 +5,17 @@
> * Copyright 2015 LG Electronics Inc.
> * Copyright (c) 2016, Intel Corporation
> * Copyright (c) 2023 Herbert Xu <[email protected]>
> */
> #ifndef _LOCAL_CRYPTO_COMPRESS_H
> #define _LOCAL_CRYPTO_COMPRESS_H
>
> #include "internal.h"
>
> struct acomp_req;
> -struct comp_alg_common;
> struct sk_buff;
>
> int crypto_init_scomp_ops_async(struct crypto_tfm *tfm);
> struct acomp_req *crypto_acomp_scomp_alloc_ctx(struct acomp_req *req);
> void crypto_acomp_scomp_free_ctx(struct acomp_req *req);
>
> -int crypto_acomp_report_stat(struct sk_buff *skb, struct crypto_alg *alg);
> -
> -void comp_prepare_alg(struct comp_alg_common *alg);
> -
> #endif /* _LOCAL_CRYPTO_COMPRESS_H */
> diff --git a/crypto/crypto_user_base.c b/crypto/crypto_user.c
> similarity index 98%
> rename from crypto/crypto_user_base.c
> rename to crypto/crypto_user.c
> index 3fa20f12989f7..6c571834e86ad 100644
> --- a/crypto/crypto_user_base.c
> +++ b/crypto/crypto_user.c
> @@ -11,36 +11,35 @@
> #include <linux/cryptouser.h>
> #include <linux/sched.h>
> #include <linux/security.h>
> #include <net/netlink.h>
> #include <net/net_namespace.h>
> #include <net/sock.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);
>
> struct crypto_dump_info {
> struct sk_buff *in_skb;
> struct sk_buff *out_skb;
> u32 nlmsg_seq;
> u16 nlmsg_flags;
> };
>
> -struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
> +static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
> {
> struct crypto_alg *q, *alg = NULL;
>
> down_read(&crypto_alg_sem);
>
> list_for_each_entry(q, &crypto_alg_list, cra_list) {
> int match = 0;
>
> if (crypto_is_larval(q))
> continue;
> @@ -380,20 +379,27 @@ static int crypto_add_alg(struct sk_buff *skb, struct nlmsghdr *nlh,
> }
>
> static int crypto_del_rng(struct sk_buff *skb, struct nlmsghdr *nlh,
> struct nlattr **attrs)
> {
> if (!netlink_capable(skb, CAP_NET_ADMIN))
> return -EPERM;
> return crypto_del_default_rng();
> }
>
> +static int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh,
> + struct nlattr **attrs)
> +{
> + /* No longer supported */
> + return -ENOTSUPP;
> +}
> +
> #define MSGSIZE(type) sizeof(struct type)
>
> static const int crypto_msg_min[CRYPTO_NR_MSGTYPES] = {
> [CRYPTO_MSG_NEWALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
> [CRYPTO_MSG_DELALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
> [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),
> };
> diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c
> deleted file mode 100644
> index d4f3d39b51376..0000000000000
> --- a/crypto/crypto_user_stat.c
> +++ /dev/null
> @@ -1,176 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0
> -/*
> - * Crypto user configuration API.
> - *
> - * Copyright (C) 2017-2018 Corentin Labbe <[email protected]>
> - *
> - */
> -
> -#include <crypto/algapi.h>
> -#include <crypto/internal/cryptouser.h>
> -#include <linux/errno.h>
> -#include <linux/kernel.h>
> -#include <linux/module.h>
> -#include <linux/string.h>
> -#include <net/netlink.h>
> -#include <net/sock.h>
> -
> -#define null_terminated(x) (strnlen(x, sizeof(x)) < sizeof(x))
> -
> -struct crypto_dump_info {
> - struct sk_buff *in_skb;
> - struct sk_buff *out_skb;
> - u32 nlmsg_seq;
> - u16 nlmsg_flags;
> -};
> -
> -static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct crypto_stat_cipher rcipher;
> -
> - memset(&rcipher, 0, sizeof(rcipher));
> -
> - strscpy(rcipher.type, "cipher", sizeof(rcipher.type));
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher);
> -}
> -
> -static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct crypto_stat_compress rcomp;
> -
> - memset(&rcomp, 0, sizeof(rcomp));
> -
> - strscpy(rcomp.type, "compression", sizeof(rcomp.type));
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_COMPRESS, sizeof(rcomp), &rcomp);
> -}
> -
> -static int crypto_reportstat_one(struct crypto_alg *alg,
> - struct crypto_user_alg *ualg,
> - struct sk_buff *skb)
> -{
> - memset(ualg, 0, sizeof(*ualg));
> -
> - strscpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
> - strscpy(ualg->cru_driver_name, alg->cra_driver_name,
> - sizeof(ualg->cru_driver_name));
> - strscpy(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_larval rl;
> -
> - memset(&rl, 0, sizeof(rl));
> - strscpy(rl.type, "larval", sizeof(rl.type));
> - if (nla_put(skb, CRYPTOCFGA_STAT_LARVAL, sizeof(rl), &rl))
> - goto nla_put_failure;
> - goto out;
> - }
> -
> - if (alg->cra_type && alg->cra_type->report_stat) {
> - if (alg->cra_type->report_stat(skb, alg))
> - goto nla_put_failure;
> - goto out;
> - }
> -
> - switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
> - 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;
> - 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 net *net = sock_net(in_skb->sk);
> - 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) {
> - kfree_skb(skb);
> - return err;
> - }
> -
> - return nlmsg_unicast(net->crypto_nlsk, skb, NETLINK_CB(in_skb).portid);
> -}
> -
> -MODULE_LICENSE("GPL");
> diff --git a/crypto/hash.h b/crypto/hash.h
> index 93f6ba0df263e..cf9aee07f77d4 100644
> --- a/crypto/hash.h
> +++ b/crypto/hash.h
> @@ -1,48 +1,18 @@
> /* SPDX-License-Identifier: GPL-2.0-or-later */
> /*
> * Cryptographic API.
> *
> * Copyright (c) 2023 Herbert Xu <[email protected]>
> */
> #ifndef _LOCAL_CRYPTO_HASH_H
> #define _LOCAL_CRYPTO_HASH_H
>
> #include <crypto/internal/hash.h>
> -#include <linux/cryptouser.h>
>
> #include "internal.h"
>
> -static inline struct crypto_istat_hash *hash_get_stat(
> - struct hash_alg_common *alg)
> -{
> -#ifdef CONFIG_CRYPTO_STATS
> - return &alg->stat;
> -#else
> - return NULL;
> -#endif
> -}
> -
> -static inline int crypto_hash_report_stat(struct sk_buff *skb,
> - struct crypto_alg *alg,
> - const char *type)
> -{
> - struct hash_alg_common *halg = __crypto_hash_alg_common(alg);
> - struct crypto_istat_hash *istat = hash_get_stat(halg);
> - struct crypto_stat_hash rhash;
> -
> - memset(&rhash, 0, sizeof(rhash));
> -
> - strscpy(rhash.type, type, sizeof(rhash.type));
> -
> - rhash.stat_hash_cnt = atomic64_read(&istat->hash_cnt);
> - rhash.stat_hash_tlen = atomic64_read(&istat->hash_tlen);
> - rhash.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_HASH, sizeof(rhash), &rhash);
> -}
> -
> extern const struct crypto_type crypto_shash_type;
>
> int hash_prepare_alg(struct hash_alg_common *alg);
>
> #endif /* _LOCAL_CRYPTO_HASH_H */
> diff --git a/crypto/kpp.c b/crypto/kpp.c
> index 33d44e59387ff..ecc63a1a948df 100644
> --- a/crypto/kpp.c
> +++ b/crypto/kpp.c
> @@ -59,55 +59,29 @@ static int crypto_kpp_init_tfm(struct crypto_tfm *tfm)
> return 0;
> }
>
> static void crypto_kpp_free_instance(struct crypto_instance *inst)
> {
> struct kpp_instance *kpp = kpp_instance(inst);
>
> kpp->free(kpp);
> }
>
> -static int __maybe_unused crypto_kpp_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct kpp_alg *kpp = __crypto_kpp_alg(alg);
> - struct crypto_istat_kpp *istat;
> - struct crypto_stat_kpp rkpp;
> -
> - istat = kpp_get_stat(kpp);
> -
> - memset(&rkpp, 0, sizeof(rkpp));
> -
> - strscpy(rkpp.type, "kpp", sizeof(rkpp.type));
> -
> - rkpp.stat_setsecret_cnt = atomic64_read(&istat->setsecret_cnt);
> - rkpp.stat_generate_public_key_cnt =
> - atomic64_read(&istat->generate_public_key_cnt);
> - rkpp.stat_compute_shared_secret_cnt =
> - atomic64_read(&istat->compute_shared_secret_cnt);
> - rkpp.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_KPP, sizeof(rkpp), &rkpp);
> -}
> -
> static const struct crypto_type crypto_kpp_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_kpp_init_tfm,
> .free = crypto_kpp_free_instance,
> #ifdef CONFIG_PROC_FS
> .show = crypto_kpp_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_kpp_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_kpp_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_MASK,
> .type = CRYPTO_ALG_TYPE_KPP,
> .tfmsize = offsetof(struct crypto_kpp, base),
> };
>
> struct crypto_kpp *crypto_alloc_kpp(const char *alg_name, u32 type, u32 mask)
> {
> return crypto_alloc_tfm(alg_name, &crypto_kpp_type, type, mask);
> @@ -124,29 +98,25 @@ int crypto_grab_kpp(struct crypto_kpp_spawn *spawn,
> EXPORT_SYMBOL_GPL(crypto_grab_kpp);
>
> int crypto_has_kpp(const char *alg_name, u32 type, u32 mask)
> {
> return crypto_type_has_alg(alg_name, &crypto_kpp_type, type, mask);
> }
> EXPORT_SYMBOL_GPL(crypto_has_kpp);
>
> static void kpp_prepare_alg(struct kpp_alg *alg)
> {
> - struct crypto_istat_kpp *istat = kpp_get_stat(alg);
> struct crypto_alg *base = &alg->base;
>
> base->cra_type = &crypto_kpp_type;
> base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
> base->cra_flags |= CRYPTO_ALG_TYPE_KPP;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - memset(istat, 0, sizeof(*istat));
> }
>
> int crypto_register_kpp(struct kpp_alg *alg)
> {
> struct crypto_alg *base = &alg->base;
>
> kpp_prepare_alg(alg);
> return crypto_register_alg(base);
> }
> EXPORT_SYMBOL_GPL(crypto_register_kpp);
> diff --git a/crypto/lskcipher.c b/crypto/lskcipher.c
> index 0b6dd8aa21f2e..0a800292ca4e3 100644
> --- a/crypto/lskcipher.c
> +++ b/crypto/lskcipher.c
> @@ -22,39 +22,20 @@ static inline struct crypto_lskcipher *__crypto_lskcipher_cast(
> {
> return container_of(tfm, struct crypto_lskcipher, base);
> }
>
> static inline struct lskcipher_alg *__crypto_lskcipher_alg(
> struct crypto_alg *alg)
> {
> return container_of(alg, struct lskcipher_alg, co.base);
> }
>
> -static inline struct crypto_istat_cipher *lskcipher_get_stat(
> - struct lskcipher_alg *alg)
> -{
> - return skcipher_get_stat_common(&alg->co);
> -}
> -
> -static inline int crypto_lskcipher_errstat(struct lskcipher_alg *alg, int err)
> -{
> - struct crypto_istat_cipher *istat = lskcipher_get_stat(alg);
> -
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err)
> - atomic64_inc(&istat->err_cnt);
> -
> - return err;
> -}
> -
> static int lskcipher_setkey_unaligned(struct crypto_lskcipher *tfm,
> const u8 *key, unsigned int keylen)
> {
> unsigned long alignmask = crypto_lskcipher_alignmask(tfm);
> struct lskcipher_alg *cipher = crypto_lskcipher_alg(tfm);
> u8 *buffer, *alignbuffer;
> unsigned long absize;
> int ret;
>
> absize = keylen + alignmask;
> @@ -140,64 +121,43 @@ static int crypto_lskcipher_crypt_unaligned(
> }
>
> static int crypto_lskcipher_crypt(struct crypto_lskcipher *tfm, const u8 *src,
> u8 *dst, unsigned len, u8 *iv,
> int (*crypt)(struct crypto_lskcipher *tfm,
> const u8 *src, u8 *dst,
> unsigned len, u8 *iv,
> u32 flags))
> {
> unsigned long alignmask = crypto_lskcipher_alignmask(tfm);
> - struct lskcipher_alg *alg = crypto_lskcipher_alg(tfm);
> - int ret;
>
> if (((unsigned long)src | (unsigned long)dst | (unsigned long)iv) &
> - alignmask) {
> - ret = crypto_lskcipher_crypt_unaligned(tfm, src, dst, len, iv,
> - crypt);
> - goto out;
> - }
> + alignmask)
> + return crypto_lskcipher_crypt_unaligned(tfm, src, dst, len, iv,
> + crypt);
>
> - ret = crypt(tfm, src, dst, len, iv, CRYPTO_LSKCIPHER_FLAG_FINAL);
> -
> -out:
> - return crypto_lskcipher_errstat(alg, ret);
> + return crypt(tfm, src, dst, len, iv, CRYPTO_LSKCIPHER_FLAG_FINAL);
> }
>
> int crypto_lskcipher_encrypt(struct crypto_lskcipher *tfm, const u8 *src,
> u8 *dst, unsigned len, u8 *iv)
> {
> struct lskcipher_alg *alg = crypto_lskcipher_alg(tfm);
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_cipher *istat = lskcipher_get_stat(alg);
> -
> - atomic64_inc(&istat->encrypt_cnt);
> - atomic64_add(len, &istat->encrypt_tlen);
> - }
> -
> return crypto_lskcipher_crypt(tfm, src, dst, len, iv, alg->encrypt);
> }
> EXPORT_SYMBOL_GPL(crypto_lskcipher_encrypt);
>
> int crypto_lskcipher_decrypt(struct crypto_lskcipher *tfm, const u8 *src,
> u8 *dst, unsigned len, u8 *iv)
> {
> struct lskcipher_alg *alg = crypto_lskcipher_alg(tfm);
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_cipher *istat = lskcipher_get_stat(alg);
> -
> - atomic64_inc(&istat->decrypt_cnt);
> - atomic64_add(len, &istat->decrypt_tlen);
> - }
> -
> return crypto_lskcipher_crypt(tfm, src, dst, len, iv, alg->decrypt);
> }
> EXPORT_SYMBOL_GPL(crypto_lskcipher_decrypt);
>
> static int crypto_lskcipher_crypt_sg(struct skcipher_request *req,
> int (*crypt)(struct crypto_lskcipher *tfm,
> const u8 *src, u8 *dst,
> unsigned len, u8 *ivs,
> u32 flags))
> {
> @@ -315,54 +275,29 @@ static int __maybe_unused crypto_lskcipher_report(
>
> rblkcipher.blocksize = alg->cra_blocksize;
> rblkcipher.min_keysize = skcipher->co.min_keysize;
> rblkcipher.max_keysize = skcipher->co.max_keysize;
> rblkcipher.ivsize = skcipher->co.ivsize;
>
> return nla_put(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
> sizeof(rblkcipher), &rblkcipher);
> }
>
> -static int __maybe_unused crypto_lskcipher_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct lskcipher_alg *skcipher = __crypto_lskcipher_alg(alg);
> - struct crypto_istat_cipher *istat;
> - struct crypto_stat_cipher rcipher;
> -
> - istat = lskcipher_get_stat(skcipher);
> -
> - memset(&rcipher, 0, sizeof(rcipher));
> -
> - strscpy(rcipher.type, "cipher", sizeof(rcipher.type));
> -
> - rcipher.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
> - rcipher.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
> - rcipher.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
> - rcipher.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
> - rcipher.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher);
> -}
> -
> static const struct crypto_type crypto_lskcipher_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_lskcipher_init_tfm,
> .free = crypto_lskcipher_free_instance,
> #ifdef CONFIG_PROC_FS
> .show = crypto_lskcipher_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_lskcipher_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_lskcipher_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_MASK,
> .type = CRYPTO_ALG_TYPE_LSKCIPHER,
> .tfmsize = offsetof(struct crypto_lskcipher, base),
> };
>
> static void crypto_lskcipher_exit_tfm_sg(struct crypto_tfm *tfm)
> {
> struct crypto_lskcipher **ctx = crypto_tfm_ctx(tfm);
> diff --git a/crypto/rng.c b/crypto/rng.c
> index 279dffdebf598..9d8804e464226 100644
> --- a/crypto/rng.c
> +++ b/crypto/rng.c
> @@ -23,44 +23,38 @@
>
> #include "internal.h"
>
> static DEFINE_MUTEX(crypto_default_rng_lock);
> struct crypto_rng *crypto_default_rng;
> EXPORT_SYMBOL_GPL(crypto_default_rng);
> static int crypto_default_rng_refcnt;
>
> int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
> {
> - struct rng_alg *alg = crypto_rng_alg(tfm);
> u8 *buf = NULL;
> int err;
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&rng_get_stat(alg)->seed_cnt);
> -
> if (!seed && slen) {
> buf = kmalloc(slen, GFP_KERNEL);
> - err = -ENOMEM;
> if (!buf)
> - goto out;
> + return -ENOMEM;
>
> err = get_random_bytes_wait(buf, slen);
> if (err)
> - goto free_buf;
> + goto out;
> seed = buf;
> }
>
> - err = alg->seed(tfm, seed, slen);
> -free_buf:
> - kfree_sensitive(buf);
> + err = crypto_rng_alg(tfm)->seed(tfm, seed, slen);
> out:
> - return crypto_rng_errstat(alg, err);
> + kfree_sensitive(buf);
> + return err;
> }
> EXPORT_SYMBOL_GPL(crypto_rng_reset);
>
> static int crypto_rng_init_tfm(struct crypto_tfm *tfm)
> {
> return 0;
> }
>
> static unsigned int seedsize(struct crypto_alg *alg)
> {
> @@ -84,52 +78,28 @@ static int __maybe_unused crypto_rng_report(
> }
>
> static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg)
> __maybe_unused;
> static void crypto_rng_show(struct seq_file *m, struct crypto_alg *alg)
> {
> seq_printf(m, "type : rng\n");
> seq_printf(m, "seedsize : %u\n", seedsize(alg));
> }
>
> -static int __maybe_unused crypto_rng_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct rng_alg *rng = __crypto_rng_alg(alg);
> - struct crypto_istat_rng *istat;
> - struct crypto_stat_rng rrng;
> -
> - istat = rng_get_stat(rng);
> -
> - memset(&rrng, 0, sizeof(rrng));
> -
> - strscpy(rrng.type, "rng", sizeof(rrng.type));
> -
> - rrng.stat_generate_cnt = atomic64_read(&istat->generate_cnt);
> - rrng.stat_generate_tlen = atomic64_read(&istat->generate_tlen);
> - rrng.stat_seed_cnt = atomic64_read(&istat->seed_cnt);
> - rrng.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_RNG, sizeof(rrng), &rrng);
> -}
> -
> static const struct crypto_type crypto_rng_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_rng_init_tfm,
> #ifdef CONFIG_PROC_FS
> .show = crypto_rng_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_rng_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_rng_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_MASK,
> .type = CRYPTO_ALG_TYPE_RNG,
> .tfmsize = offsetof(struct crypto_rng, base),
> };
>
> struct crypto_rng *crypto_alloc_rng(const char *alg_name, u32 type, u32 mask)
> {
> return crypto_alloc_tfm(alg_name, &crypto_rng_type, type, mask);
> @@ -192,33 +162,29 @@ int crypto_del_default_rng(void)
> out:
> mutex_unlock(&crypto_default_rng_lock);
>
> return err;
> }
> EXPORT_SYMBOL_GPL(crypto_del_default_rng);
> #endif
>
> int crypto_register_rng(struct rng_alg *alg)
> {
> - struct crypto_istat_rng *istat = rng_get_stat(alg);
> struct crypto_alg *base = &alg->base;
>
> if (alg->seedsize > PAGE_SIZE / 8)
> return -EINVAL;
>
> base->cra_type = &crypto_rng_type;
> base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
> base->cra_flags |= CRYPTO_ALG_TYPE_RNG;
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - memset(istat, 0, sizeof(*istat));
> -
> return crypto_register_alg(base);
> }
> EXPORT_SYMBOL_GPL(crypto_register_rng);
>
> void crypto_unregister_rng(struct rng_alg *alg)
> {
> crypto_unregister_alg(&alg->base);
> }
> EXPORT_SYMBOL_GPL(crypto_unregister_rng);
>
> diff --git a/crypto/scompress.c b/crypto/scompress.c
> index b108a30a76001..9cda4ef84a9bb 100644
> --- a/crypto/scompress.c
> +++ b/crypto/scompress.c
> @@ -241,37 +241,33 @@ void crypto_acomp_scomp_free_ctx(struct acomp_req *req)
> }
>
> static const struct crypto_type crypto_scomp_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_scomp_init_tfm,
> #ifdef CONFIG_PROC_FS
> .show = crypto_scomp_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_scomp_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_acomp_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_MASK,
> .type = CRYPTO_ALG_TYPE_SCOMPRESS,
> .tfmsize = offsetof(struct crypto_scomp, base),
> };
>
> int crypto_register_scomp(struct scomp_alg *alg)
> {
> - struct crypto_alg *base = &alg->calg.base;
> -
> - comp_prepare_alg(&alg->calg);
> + struct crypto_alg *base = &alg->base;
>
> base->cra_type = &crypto_scomp_type;
> + base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
> base->cra_flags |= CRYPTO_ALG_TYPE_SCOMPRESS;
>
> return crypto_register_alg(base);
> }
> EXPORT_SYMBOL_GPL(crypto_register_scomp);
>
> void crypto_unregister_scomp(struct scomp_alg *alg)
> {
> crypto_unregister_alg(&alg->base);
> }
> diff --git a/crypto/shash.c b/crypto/shash.c
> index c3f7f6a252803..0ffe671b519e1 100644
> --- a/crypto/shash.c
> +++ b/crypto/shash.c
> @@ -9,32 +9,20 @@
> #include <linux/cryptouser.h>
> #include <linux/err.h>
> #include <linux/kernel.h>
> #include <linux/module.h>
> #include <linux/seq_file.h>
> #include <linux/string.h>
> #include <net/netlink.h>
>
> #include "hash.h"
>
> -static inline struct crypto_istat_hash *shash_get_stat(struct shash_alg *alg)
> -{
> - return hash_get_stat(&alg->halg);
> -}
> -
> -static inline int crypto_shash_errstat(struct shash_alg *alg, int err)
> -{
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS) && err)
> - atomic64_inc(&shash_get_stat(alg)->err_cnt);
> - return err;
> -}
> -
> int shash_no_setkey(struct crypto_shash *tfm, const u8 *key,
> unsigned int keylen)
> {
> return -ENOSYS;
> }
> EXPORT_SYMBOL_GPL(shash_no_setkey);
>
> static void shash_set_needkey(struct crypto_shash *tfm, struct shash_alg *alg)
> {
> if (crypto_shash_alg_needs_key(alg))
> @@ -54,104 +42,64 @@ int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
> }
>
> crypto_shash_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
> return 0;
> }
> EXPORT_SYMBOL_GPL(crypto_shash_setkey);
>
> int crypto_shash_update(struct shash_desc *desc, const u8 *data,
> unsigned int len)
> {
> - struct shash_alg *shash = crypto_shash_alg(desc->tfm);
> - int err;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_add(len, &shash_get_stat(shash)->hash_tlen);
> -
> - err = shash->update(desc, data, len);
> -
> - return crypto_shash_errstat(shash, err);
> + return crypto_shash_alg(desc->tfm)->update(desc, data, len);
> }
> EXPORT_SYMBOL_GPL(crypto_shash_update);
>
> int crypto_shash_final(struct shash_desc *desc, u8 *out)
> {
> - struct shash_alg *shash = crypto_shash_alg(desc->tfm);
> - int err;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&shash_get_stat(shash)->hash_cnt);
> -
> - err = shash->final(desc, out);
> -
> - return crypto_shash_errstat(shash, err);
> + return crypto_shash_alg(desc->tfm)->final(desc, out);
> }
> EXPORT_SYMBOL_GPL(crypto_shash_final);
>
> static int shash_default_finup(struct shash_desc *desc, const u8 *data,
> unsigned int len, u8 *out)
> {
> struct shash_alg *shash = crypto_shash_alg(desc->tfm);
>
> return shash->update(desc, data, len) ?:
> shash->final(desc, out);
> }
>
> int crypto_shash_finup(struct shash_desc *desc, const u8 *data,
> unsigned int len, u8 *out)
> {
> - struct crypto_shash *tfm = desc->tfm;
> - struct shash_alg *shash = crypto_shash_alg(tfm);
> - int err;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_hash *istat = shash_get_stat(shash);
> -
> - atomic64_inc(&istat->hash_cnt);
> - atomic64_add(len, &istat->hash_tlen);
> - }
> -
> - err = shash->finup(desc, data, len, out);
> -
> - return crypto_shash_errstat(shash, err);
> + return crypto_shash_alg(desc->tfm)->finup(desc, data, len, out);
> }
> EXPORT_SYMBOL_GPL(crypto_shash_finup);
>
> static int shash_default_digest(struct shash_desc *desc, const u8 *data,
> unsigned int len, u8 *out)
> {
> struct shash_alg *shash = crypto_shash_alg(desc->tfm);
>
> return shash->init(desc) ?:
> shash->finup(desc, data, len, out);
> }
>
> int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
> unsigned int len, u8 *out)
> {
> struct crypto_shash *tfm = desc->tfm;
> - struct shash_alg *shash = crypto_shash_alg(tfm);
> - int err;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_hash *istat = shash_get_stat(shash);
> -
> - atomic64_inc(&istat->hash_cnt);
> - atomic64_add(len, &istat->hash_tlen);
> - }
>
> if (crypto_shash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
> - err = -ENOKEY;
> - else
> - err = shash->digest(desc, data, len, out);
> + return -ENOKEY;
>
> - return crypto_shash_errstat(shash, err);
> + return crypto_shash_alg(desc->tfm)->digest(desc, data, len, out);
> }
> EXPORT_SYMBOL_GPL(crypto_shash_digest);
>
> int crypto_shash_tfm_digest(struct crypto_shash *tfm, const u8 *data,
> unsigned int len, u8 *out)
> {
> SHASH_DESC_ON_STACK(desc, tfm);
> int err;
>
> desc->tfm = tfm;
> @@ -258,38 +206,29 @@ static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg)
> __maybe_unused;
> static void crypto_shash_show(struct seq_file *m, struct crypto_alg *alg)
> {
> struct shash_alg *salg = __crypto_shash_alg(alg);
>
> seq_printf(m, "type : shash\n");
> seq_printf(m, "blocksize : %u\n", alg->cra_blocksize);
> seq_printf(m, "digestsize : %u\n", salg->digestsize);
> }
>
> -static int __maybe_unused crypto_shash_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - return crypto_hash_report_stat(skb, alg, "shash");
> -}
> -
> const struct crypto_type crypto_shash_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_shash_init_tfm,
> .free = crypto_shash_free_instance,
> #ifdef CONFIG_PROC_FS
> .show = crypto_shash_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_shash_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_shash_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_MASK,
> .type = CRYPTO_ALG_TYPE_SHASH,
> .tfmsize = offsetof(struct crypto_shash, base),
> };
>
> int crypto_grab_shash(struct crypto_shash_spawn *spawn,
> struct crypto_instance *inst,
> const char *name, u32 type, u32 mask)
> @@ -343,35 +282,31 @@ struct crypto_shash *crypto_clone_shash(struct crypto_shash *hash)
> return ERR_PTR(err);
> }
> }
>
> return nhash;
> }
> EXPORT_SYMBOL_GPL(crypto_clone_shash);
>
> int hash_prepare_alg(struct hash_alg_common *alg)
> {
> - struct crypto_istat_hash *istat = hash_get_stat(alg);
> struct crypto_alg *base = &alg->base;
>
> if (alg->digestsize > HASH_MAX_DIGESTSIZE)
> return -EINVAL;
>
> /* alignmask is not useful for hashes, so it is not supported. */
> if (base->cra_alignmask)
> return -EINVAL;
>
> base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - memset(istat, 0, sizeof(*istat));
> -
> return 0;
> }
>
> static int shash_prepare_alg(struct shash_alg *alg)
> {
> struct crypto_alg *base = &alg->halg.base;
> int err;
>
> if (alg->descsize > HASH_MAX_DESCSIZE)
> return -EINVAL;
> diff --git a/crypto/sig.c b/crypto/sig.c
> index 224c470192977..7645bedf3a1fd 100644
> --- a/crypto/sig.c
> +++ b/crypto/sig.c
> @@ -38,41 +38,28 @@ static void __maybe_unused crypto_sig_show(struct seq_file *m,
> static int __maybe_unused crypto_sig_report(struct sk_buff *skb,
> struct crypto_alg *alg)
> {
> struct crypto_report_akcipher rsig = {};
>
> strscpy(rsig.type, "sig", sizeof(rsig.type));
>
> return nla_put(skb, CRYPTOCFGA_REPORT_AKCIPHER, sizeof(rsig), &rsig);
> }
>
> -static int __maybe_unused crypto_sig_report_stat(struct sk_buff *skb,
> - struct crypto_alg *alg)
> -{
> - struct crypto_stat_akcipher rsig = {};
> -
> - strscpy(rsig.type, "sig", sizeof(rsig.type));
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER, sizeof(rsig), &rsig);
> -}
> -
> static const struct crypto_type crypto_sig_type = {
> .extsize = crypto_alg_extsize,
> .init_tfm = crypto_sig_init_tfm,
> #ifdef CONFIG_PROC_FS
> .show = crypto_sig_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_sig_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_sig_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_SIG_MASK,
> .type = CRYPTO_ALG_TYPE_SIG,
> .tfmsize = offsetof(struct crypto_sig, base),
> };
>
> struct crypto_sig *crypto_alloc_sig(const char *alg_name, u32 type, u32 mask)
> {
> return crypto_alloc_tfm(alg_name, &crypto_sig_type, type, mask);
> diff --git a/crypto/skcipher.c b/crypto/skcipher.c
> index bc70e159d27df..ceed7f33a67ba 100644
> --- a/crypto/skcipher.c
> +++ b/crypto/skcipher.c
> @@ -82,39 +82,20 @@ static inline u8 *skcipher_get_spot(u8 *start, unsigned int len)
>
> return max(start, end_page);
> }
>
> static inline struct skcipher_alg *__crypto_skcipher_alg(
> struct crypto_alg *alg)
> {
> return container_of(alg, struct skcipher_alg, base);
> }
>
> -static inline struct crypto_istat_cipher *skcipher_get_stat(
> - struct skcipher_alg *alg)
> -{
> - return skcipher_get_stat_common(&alg->co);
> -}
> -
> -static inline int crypto_skcipher_errstat(struct skcipher_alg *alg, int err)
> -{
> - struct crypto_istat_cipher *istat = skcipher_get_stat(alg);
> -
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err && err != -EINPROGRESS && err != -EBUSY)
> - atomic64_inc(&istat->err_cnt);
> -
> - return err;
> -}
> -
> static int skcipher_done_slow(struct skcipher_walk *walk, unsigned int bsize)
> {
> u8 *addr;
>
> addr = (u8 *)ALIGN((unsigned long)walk->buffer, walk->alignmask + 1);
> addr = skcipher_get_spot(addr, bsize);
> scatterwalk_copychunks(addr, &walk->out, bsize,
> (walk->flags & SKCIPHER_WALK_PHYS) ? 2 : 1);
> return 0;
> }
> @@ -647,61 +628,39 @@ int crypto_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
>
> crypto_skcipher_clear_flags(tfm, CRYPTO_TFM_NEED_KEY);
> return 0;
> }
> EXPORT_SYMBOL_GPL(crypto_skcipher_setkey);
>
> int crypto_skcipher_encrypt(struct skcipher_request *req)
> {
> struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
> - int ret;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_cipher *istat = skcipher_get_stat(alg);
> -
> - atomic64_inc(&istat->encrypt_cnt);
> - atomic64_add(req->cryptlen, &istat->encrypt_tlen);
> - }
>
> if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
> - ret = -ENOKEY;
> - else if (alg->co.base.cra_type != &crypto_skcipher_type)
> - ret = crypto_lskcipher_encrypt_sg(req);
> - else
> - ret = alg->encrypt(req);
> -
> - return crypto_skcipher_errstat(alg, ret);
> + return -ENOKEY;
> + if (alg->co.base.cra_type != &crypto_skcipher_type)
> + return crypto_lskcipher_encrypt_sg(req);
> + return alg->encrypt(req);
> }
> EXPORT_SYMBOL_GPL(crypto_skcipher_encrypt);
>
> int crypto_skcipher_decrypt(struct skcipher_request *req)
> {
> struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
> - int ret;
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_cipher *istat = skcipher_get_stat(alg);
> -
> - atomic64_inc(&istat->decrypt_cnt);
> - atomic64_add(req->cryptlen, &istat->decrypt_tlen);
> - }
>
> if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
> - ret = -ENOKEY;
> - else if (alg->co.base.cra_type != &crypto_skcipher_type)
> - ret = crypto_lskcipher_decrypt_sg(req);
> - else
> - ret = alg->decrypt(req);
> -
> - return crypto_skcipher_errstat(alg, ret);
> + return -ENOKEY;
> + if (alg->co.base.cra_type != &crypto_skcipher_type)
> + return crypto_lskcipher_decrypt_sg(req);
> + return alg->decrypt(req);
> }
> EXPORT_SYMBOL_GPL(crypto_skcipher_decrypt);
>
> static int crypto_lskcipher_export(struct skcipher_request *req, void *out)
> {
> struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
> u8 *ivs = skcipher_request_ctx(req);
>
> ivs = PTR_ALIGN(ivs, crypto_skcipher_alignmask(tfm) + 1);
>
> @@ -839,54 +798,29 @@ static int __maybe_unused crypto_skcipher_report(
>
> rblkcipher.blocksize = alg->cra_blocksize;
> rblkcipher.min_keysize = skcipher->min_keysize;
> rblkcipher.max_keysize = skcipher->max_keysize;
> rblkcipher.ivsize = skcipher->ivsize;
>
> return nla_put(skb, CRYPTOCFGA_REPORT_BLKCIPHER,
> sizeof(rblkcipher), &rblkcipher);
> }
>
> -static int __maybe_unused crypto_skcipher_report_stat(
> - struct sk_buff *skb, struct crypto_alg *alg)
> -{
> - struct skcipher_alg *skcipher = __crypto_skcipher_alg(alg);
> - struct crypto_istat_cipher *istat;
> - struct crypto_stat_cipher rcipher;
> -
> - istat = skcipher_get_stat(skcipher);
> -
> - memset(&rcipher, 0, sizeof(rcipher));
> -
> - strscpy(rcipher.type, "cipher", sizeof(rcipher.type));
> -
> - rcipher.stat_encrypt_cnt = atomic64_read(&istat->encrypt_cnt);
> - rcipher.stat_encrypt_tlen = atomic64_read(&istat->encrypt_tlen);
> - rcipher.stat_decrypt_cnt = atomic64_read(&istat->decrypt_cnt);
> - rcipher.stat_decrypt_tlen = atomic64_read(&istat->decrypt_tlen);
> - rcipher.stat_err_cnt = atomic64_read(&istat->err_cnt);
> -
> - return nla_put(skb, CRYPTOCFGA_STAT_CIPHER, sizeof(rcipher), &rcipher);
> -}
> -
> static const struct crypto_type crypto_skcipher_type = {
> .extsize = crypto_skcipher_extsize,
> .init_tfm = crypto_skcipher_init_tfm,
> .free = crypto_skcipher_free_instance,
> #ifdef CONFIG_PROC_FS
> .show = crypto_skcipher_show,
> #endif
> #if IS_ENABLED(CONFIG_CRYPTO_USER)
> .report = crypto_skcipher_report,
> -#endif
> -#ifdef CONFIG_CRYPTO_STATS
> - .report_stat = crypto_skcipher_report_stat,
> #endif
> .maskclear = ~CRYPTO_ALG_TYPE_MASK,
> .maskset = CRYPTO_ALG_TYPE_SKCIPHER_MASK,
> .type = CRYPTO_ALG_TYPE_SKCIPHER,
> .tfmsize = offsetof(struct crypto_skcipher, base),
> };
>
> int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn,
> struct crypto_instance *inst,
> const char *name, u32 type, u32 mask)
> @@ -928,36 +862,32 @@ struct crypto_sync_skcipher *crypto_alloc_sync_skcipher(
> EXPORT_SYMBOL_GPL(crypto_alloc_sync_skcipher);
>
> int crypto_has_skcipher(const char *alg_name, u32 type, u32 mask)
> {
> return crypto_type_has_alg(alg_name, &crypto_skcipher_type, type, mask);
> }
> EXPORT_SYMBOL_GPL(crypto_has_skcipher);
>
> int skcipher_prepare_alg_common(struct skcipher_alg_common *alg)
> {
> - struct crypto_istat_cipher *istat = skcipher_get_stat_common(alg);
> struct crypto_alg *base = &alg->base;
>
> if (alg->ivsize > PAGE_SIZE / 8 || alg->chunksize > PAGE_SIZE / 8 ||
> alg->statesize > PAGE_SIZE / 2 ||
> (alg->ivsize + alg->statesize) > PAGE_SIZE / 2)
> return -EINVAL;
>
> if (!alg->chunksize)
> alg->chunksize = base->cra_blocksize;
>
> base->cra_flags &= ~CRYPTO_ALG_TYPE_MASK;
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - memset(istat, 0, sizeof(*istat));
> -
> return 0;
> }
>
> static int skcipher_prepare_alg(struct skcipher_alg *alg)
> {
> struct crypto_alg *base = &alg->base;
> int err;
>
> err = skcipher_prepare_alg_common(&alg->co);
> if (err)
> diff --git a/crypto/skcipher.h b/crypto/skcipher.h
> index 16c9484360dab..703651367dd87 100644
> --- a/crypto/skcipher.h
> +++ b/crypto/skcipher.h
> @@ -3,26 +3,16 @@
> * Cryptographic API.
> *
> * Copyright (c) 2023 Herbert Xu <[email protected]>
> */
> #ifndef _LOCAL_CRYPTO_SKCIPHER_H
> #define _LOCAL_CRYPTO_SKCIPHER_H
>
> #include <crypto/internal/skcipher.h>
> #include "internal.h"
>
> -static inline struct crypto_istat_cipher *skcipher_get_stat_common(
> - struct skcipher_alg_common *alg)
> -{
> -#ifdef CONFIG_CRYPTO_STATS
> - return &alg->stat;
> -#else
> - return NULL;
> -#endif
> -}
> -
> int crypto_lskcipher_encrypt_sg(struct skcipher_request *req);
> int crypto_lskcipher_decrypt_sg(struct skcipher_request *req);
> int crypto_init_lskcipher_ops_sg(struct crypto_tfm *tfm);
> int skcipher_prepare_alg_common(struct skcipher_alg_common *alg);
>
> #endif /* _LOCAL_CRYPTO_SKCIPHER_H */
> diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h
> index 574cffc90730f..d042c90e09076 100644
> --- a/include/crypto/acompress.h
> +++ b/include/crypto/acompress.h
> @@ -49,49 +49,20 @@ struct acomp_req {
> * @base: Common crypto API algorithm data structure
> */
> struct crypto_acomp {
> int (*compress)(struct acomp_req *req);
> int (*decompress)(struct acomp_req *req);
> void (*dst_free)(struct scatterlist *dst);
> unsigned int reqsize;
> struct crypto_tfm base;
> };
>
> -/*
> - * struct crypto_istat_compress - statistics for compress algorithm
> - * @compress_cnt: number of compress requests
> - * @compress_tlen: total data size handled by compress requests
> - * @decompress_cnt: number of decompress requests
> - * @decompress_tlen: total data size handled by decompress requests
> - * @err_cnt: number of error for compress requests
> - */
> -struct crypto_istat_compress {
> - atomic64_t compress_cnt;
> - atomic64_t compress_tlen;
> - atomic64_t decompress_cnt;
> - atomic64_t decompress_tlen;
> - atomic64_t err_cnt;
> -};
> -
> -#ifdef CONFIG_CRYPTO_STATS
> -#define COMP_ALG_COMMON_STATS struct crypto_istat_compress stat;
> -#else
> -#define COMP_ALG_COMMON_STATS
> -#endif
> -
> -#define COMP_ALG_COMMON { \
> - COMP_ALG_COMMON_STATS \
> - \
> - struct crypto_alg base; \
> -}
> -struct comp_alg_common COMP_ALG_COMMON;
> -
> /**
> * DOC: Asynchronous Compression API
> *
> * The Asynchronous Compression API is used with the algorithms of type
> * CRYPTO_ALG_TYPE_ACOMPRESS (listed as type "acomp" in /proc/crypto)
> */
>
> /**
> * crypto_alloc_acomp() -- allocate ACOMPRESS tfm handle
> * @alg_name: is the cra_name / name or cra_driver_name / driver name of the
> @@ -125,37 +96,25 @@ struct crypto_acomp *crypto_alloc_acomp(const char *alg_name, u32 type,
> * of an error, PTR_ERR() returns the error code.
> */
> struct crypto_acomp *crypto_alloc_acomp_node(const char *alg_name, u32 type,
> u32 mask, int node);
>
> static inline struct crypto_tfm *crypto_acomp_tfm(struct crypto_acomp *tfm)
> {
> return &tfm->base;
> }
>
> -static inline struct comp_alg_common *__crypto_comp_alg_common(
> - struct crypto_alg *alg)
> -{
> - return container_of(alg, struct comp_alg_common, base);
> -}
> -
> static inline struct crypto_acomp *__crypto_acomp_tfm(struct crypto_tfm *tfm)
> {
> return container_of(tfm, struct crypto_acomp, base);
> }
>
> -static inline struct comp_alg_common *crypto_comp_alg_common(
> - struct crypto_acomp *tfm)
> -{
> - return __crypto_comp_alg_common(crypto_acomp_tfm(tfm)->__crt_alg);
> -}
> -
> static inline unsigned int crypto_acomp_reqsize(struct crypto_acomp *tfm)
> {
> return tfm->reqsize;
> }
>
> static inline void acomp_request_set_tfm(struct acomp_req *req,
> struct crypto_acomp *tfm)
> {
> req->base.tfm = crypto_acomp_tfm(tfm);
> }
> @@ -248,84 +207,39 @@ static inline void acomp_request_set_params(struct acomp_req *req,
> req->src = src;
> req->dst = dst;
> req->slen = slen;
> req->dlen = dlen;
>
> req->flags &= ~CRYPTO_ACOMP_ALLOC_OUTPUT;
> if (!req->dst)
> req->flags |= CRYPTO_ACOMP_ALLOC_OUTPUT;
> }
>
> -static inline struct crypto_istat_compress *comp_get_stat(
> - struct comp_alg_common *alg)
> -{
> -#ifdef CONFIG_CRYPTO_STATS
> - return &alg->stat;
> -#else
> - return NULL;
> -#endif
> -}
> -
> -static inline int crypto_comp_errstat(struct comp_alg_common *alg, int err)
> -{
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err && err != -EINPROGRESS && err != -EBUSY)
> - atomic64_inc(&comp_get_stat(alg)->err_cnt);
> -
> - return err;
> -}
> -
> /**
> * crypto_acomp_compress() -- Invoke asynchronous compress operation
> *
> * Function invokes the asynchronous compress operation
> *
> * @req: asynchronous compress request
> *
> * Return: zero on success; error code in case of error
> */
> static inline int crypto_acomp_compress(struct acomp_req *req)
> {
> - struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
> - struct comp_alg_common *alg;
> -
> - alg = crypto_comp_alg_common(tfm);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_compress *istat = comp_get_stat(alg);
> -
> - atomic64_inc(&istat->compress_cnt);
> - atomic64_add(req->slen, &istat->compress_tlen);
> - }
> -
> - return crypto_comp_errstat(alg, tfm->compress(req));
> + return crypto_acomp_reqtfm(req)->compress(req);
> }
>
> /**
> * crypto_acomp_decompress() -- Invoke asynchronous decompress operation
> *
> * Function invokes the asynchronous decompress operation
> *
> * @req: asynchronous compress request
> *
> * Return: zero on success; error code in case of error
> */
> static inline int crypto_acomp_decompress(struct acomp_req *req)
> {
> - struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
> - struct comp_alg_common *alg;
> -
> - alg = crypto_comp_alg_common(tfm);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_compress *istat = comp_get_stat(alg);
> -
> - atomic64_inc(&istat->decompress_cnt);
> - atomic64_add(req->slen, &istat->decompress_tlen);
> - }
> -
> - return crypto_comp_errstat(alg, tfm->decompress(req));
> + return crypto_acomp_reqtfm(req)->decompress(req);
> }
>
> #endif
> diff --git a/include/crypto/aead.h b/include/crypto/aead.h
> index 51382befbe37a..0e8a416386780 100644
> --- a/include/crypto/aead.h
> +++ b/include/crypto/aead.h
> @@ -94,55 +94,38 @@ struct aead_request {
> unsigned int cryptlen;
>
> u8 *iv;
>
> struct scatterlist *src;
> struct scatterlist *dst;
>
> void *__ctx[] CRYPTO_MINALIGN_ATTR;
> };
>
> -/*
> - * struct crypto_istat_aead - statistics for AEAD algorithm
> - * @encrypt_cnt: number of encrypt requests
> - * @encrypt_tlen: total data size handled by encrypt requests
> - * @decrypt_cnt: number of decrypt requests
> - * @decrypt_tlen: total data size handled by decrypt requests
> - * @err_cnt: number of error for AEAD requests
> - */
> -struct crypto_istat_aead {
> - atomic64_t encrypt_cnt;
> - atomic64_t encrypt_tlen;
> - atomic64_t decrypt_cnt;
> - atomic64_t decrypt_tlen;
> - atomic64_t err_cnt;
> -};
> -
> /**
> * struct aead_alg - AEAD cipher definition
> * @maxauthsize: Set the maximum authentication tag size supported by the
> * transformation. A transformation may support smaller tag sizes.
> * As the authentication tag is a message digest to ensure the
> * integrity of the encrypted data, a consumer typically wants the
> * largest authentication tag possible as defined by this
> * variable.
> * @setauthsize: Set authentication size for the AEAD transformation. This
> * function is used to specify the consumer requested size of the
> * authentication tag to be either generated by the transformation
> * during encryption or the size of the authentication tag to be
> * supplied during the decryption operation. This function is also
> * responsible for checking the authentication tag size for
> * validity.
> * @setkey: see struct skcipher_alg
> * @encrypt: see struct skcipher_alg
> * @decrypt: see struct skcipher_alg
> - * @stat: statistics for AEAD algorithm
> * @ivsize: see struct skcipher_alg
> * @chunksize: see struct skcipher_alg
> * @init: Initialize the cryptographic transformation object. This function
> * is used to initialize the cryptographic transformation object.
> * This function is called only once at the instantiation time, right
> * after the transformation context was allocated. In case the
> * cryptographic hardware has some special requirements which need to
> * be handled by software, this function shall check for the precise
> * requirement of the transformation and put any software fallbacks
> * in place.
> @@ -155,24 +138,20 @@ struct crypto_istat_aead {
> */
> struct aead_alg {
> int (*setkey)(struct crypto_aead *tfm, const u8 *key,
> unsigned int keylen);
> int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
> int (*encrypt)(struct aead_request *req);
> int (*decrypt)(struct aead_request *req);
> int (*init)(struct crypto_aead *tfm);
> void (*exit)(struct crypto_aead *tfm);
>
> -#ifdef CONFIG_CRYPTO_STATS
> - struct crypto_istat_aead stat;
> -#endif
> -
> unsigned int ivsize;
> unsigned int maxauthsize;
> unsigned int chunksize;
>
> struct crypto_alg base;
> };
>
> struct crypto_aead {
> unsigned int authsize;
> unsigned int reqsize;
> diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
> index 31c111bebb688..18a10cad07aaa 100644
> --- a/include/crypto/akcipher.h
> +++ b/include/crypto/akcipher.h
> @@ -47,40 +47,20 @@ struct akcipher_request {
> *
> * @reqsize: Request context size required by algorithm implementation
> * @base: Common crypto API algorithm data structure
> */
> struct crypto_akcipher {
> unsigned int reqsize;
>
> struct crypto_tfm base;
> };
>
> -/*
> - * struct crypto_istat_akcipher - statistics for akcipher algorithm
> - * @encrypt_cnt: number of encrypt requests
> - * @encrypt_tlen: total data size handled by encrypt requests
> - * @decrypt_cnt: number of decrypt requests
> - * @decrypt_tlen: total data size handled by decrypt requests
> - * @verify_cnt: number of verify operation
> - * @sign_cnt: number of sign requests
> - * @err_cnt: number of error for akcipher requests
> - */
> -struct crypto_istat_akcipher {
> - atomic64_t encrypt_cnt;
> - atomic64_t encrypt_tlen;
> - atomic64_t decrypt_cnt;
> - atomic64_t decrypt_tlen;
> - atomic64_t verify_cnt;
> - atomic64_t sign_cnt;
> - atomic64_t err_cnt;
> -};
> -
> /**
> * struct akcipher_alg - generic public key algorithm
> *
> * @sign: Function performs a sign operation as defined by public key
> * algorithm. In case of error, where the dst_len was insufficient,
> * the req->dst_len will be updated to the size required for the
> * operation
> * @verify: Function performs a complete verify operation as defined by
> * public key algorithm, returning verification status. Requires
> * digest value as input parameter.
> @@ -103,41 +83,36 @@ struct crypto_istat_akcipher {
> * This function is used to initialize the cryptographic
> * transformation object. This function is called only once at
> * the instantiation time, right after the transformation context
> * was allocated. In case the cryptographic hardware has some
> * special requirements which need to be handled by software, this
> * function shall check for the precise requirement of the
> * transformation and put any software fallbacks in place.
> * @exit: Deinitialize the cryptographic transformation object. This is a
> * counterpart to @init, used to remove various changes set in
> * @init.
> - * @stat: Statistics for akcipher algorithm
> *
> * @base: Common crypto API algorithm data structure
> */
> struct akcipher_alg {
> int (*sign)(struct akcipher_request *req);
> int (*verify)(struct akcipher_request *req);
> int (*encrypt)(struct akcipher_request *req);
> int (*decrypt)(struct akcipher_request *req);
> int (*set_pub_key)(struct crypto_akcipher *tfm, const void *key,
> unsigned int keylen);
> int (*set_priv_key)(struct crypto_akcipher *tfm, const void *key,
> unsigned int keylen);
> unsigned int (*max_size)(struct crypto_akcipher *tfm);
> int (*init)(struct crypto_akcipher *tfm);
> void (*exit)(struct crypto_akcipher *tfm);
>
> -#ifdef CONFIG_CRYPTO_STATS
> - struct crypto_istat_akcipher stat;
> -#endif
> -
> struct crypto_alg base;
> };
>
> /**
> * DOC: Generic Public Key API
> *
> * The Public Key API is used with the algorithms of type
> * CRYPTO_ALG_TYPE_AKCIPHER (listed as type "akcipher" in /proc/crypto)
> */
>
> @@ -295,89 +270,52 @@ static inline void akcipher_request_set_crypt(struct akcipher_request *req,
> *
> * @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
> */
> static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *tfm)
> {
> struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
>
> return alg->max_size(tfm);
> }
>
> -static inline struct crypto_istat_akcipher *akcipher_get_stat(
> - struct akcipher_alg *alg)
> -{
> -#ifdef CONFIG_CRYPTO_STATS
> - return &alg->stat;
> -#else
> - return NULL;
> -#endif
> -}
> -
> -static inline int crypto_akcipher_errstat(struct akcipher_alg *alg, int err)
> -{
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err && err != -EINPROGRESS && err != -EBUSY)
> - atomic64_inc(&akcipher_get_stat(alg)->err_cnt);
> -
> - return err;
> -}
> -
> /**
> * crypto_akcipher_encrypt() - Invoke public key encrypt operation
> *
> * Function invokes the specific public key encrypt operation for a given
> * public key algorithm
> *
> * @req: asymmetric key request
> *
> * Return: zero on success; error code in case of error
> */
> 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);
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_akcipher *istat = akcipher_get_stat(alg);
> -
> - atomic64_inc(&istat->encrypt_cnt);
> - atomic64_add(req->src_len, &istat->encrypt_tlen);
> - }
> -
> - return crypto_akcipher_errstat(alg, alg->encrypt(req));
> + return crypto_akcipher_alg(tfm)->encrypt(req);
> }
>
> /**
> * crypto_akcipher_decrypt() - Invoke public key decrypt operation
> *
> * Function invokes the specific public key decrypt operation for a given
> * public key algorithm
> *
> * @req: asymmetric key request
> *
> * Return: zero on success; error code in case of error
> */
> 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);
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_akcipher *istat = akcipher_get_stat(alg);
> -
> - atomic64_inc(&istat->decrypt_cnt);
> - atomic64_add(req->src_len, &istat->decrypt_tlen);
> - }
> -
> - return crypto_akcipher_errstat(alg, alg->decrypt(req));
> + return crypto_akcipher_alg(tfm)->decrypt(req);
> }
>
> /**
> * crypto_akcipher_sync_encrypt() - Invoke public key encrypt operation
> *
> * Function invokes the specific public key encrypt operation for a given
> * public key algorithm
> *
> * @tfm: AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
> * @src: source buffer
> @@ -415,51 +353,43 @@ int crypto_akcipher_sync_decrypt(struct crypto_akcipher *tfm,
> * Function invokes the specific public key sign operation for a given
> * public key algorithm
> *
> * @req: asymmetric key request
> *
> * Return: zero on success; error code in case of error
> */
> 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);
>
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&akcipher_get_stat(alg)->sign_cnt);
> -
> - return crypto_akcipher_errstat(alg, alg->sign(req));
> + return crypto_akcipher_alg(tfm)->sign(req);
> }
>
> /**
> * crypto_akcipher_verify() - Invoke public key signature verification
> *
> * Function invokes the specific public key signature verification operation
> * for a given public key algorithm.
> *
> * @req: asymmetric key request
> *
> * Note: req->dst should be NULL, req->src should point to SG of size
> * (req->src_size + req->dst_size), containing signature (of req->src_size
> * length) with appended digest (of req->dst_size length).
> *
> * Return: zero on verification success; error code in case of error.
> */
> 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);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&akcipher_get_stat(alg)->verify_cnt);
>
> - return crypto_akcipher_errstat(alg, alg->verify(req));
> + return crypto_akcipher_alg(tfm)->verify(req);
> }
>
> /**
> * crypto_akcipher_set_pub_key() - Invoke set public key operation
> *
> * Function invokes the algorithm specific set key function, which knows
> * how to decode and interpret the encoded key and parameters
> *
> * @tfm: tfm handle
> * @key: BER encoded public key, algo OID, paramlen, BER encoded
> diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
> index 7a4a71af653fa..156de41ca760a 100644
> --- a/include/crypto/algapi.h
> +++ b/include/crypto/algapi.h
> @@ -54,23 +54,20 @@ struct scatterlist;
> struct seq_file;
> struct sk_buff;
>
> struct crypto_type {
> unsigned int (*ctxsize)(struct crypto_alg *alg, u32 type, u32 mask);
> unsigned int (*extsize)(struct crypto_alg *alg);
> int (*init_tfm)(struct crypto_tfm *tfm);
> void (*show)(struct seq_file *m, struct crypto_alg *alg);
> int (*report)(struct sk_buff *skb, struct crypto_alg *alg);
> void (*free)(struct crypto_instance *inst);
> -#ifdef CONFIG_CRYPTO_STATS
> - int (*report_stat)(struct sk_buff *skb, struct crypto_alg *alg);
> -#endif
>
> unsigned int type;
> unsigned int maskclear;
> unsigned int maskset;
> unsigned int tfmsize;
> };
>
> struct crypto_instance {
> struct crypto_alg alg;
>
> diff --git a/include/crypto/hash.h b/include/crypto/hash.h
> index 5d61f576cfc86..0014bdd81ab7d 100644
> --- a/include/crypto/hash.h
> +++ b/include/crypto/hash.h
> @@ -16,59 +16,38 @@ struct crypto_ahash;
>
> /**
> * DOC: Message Digest Algorithm Definitions
> *
> * These data structures define modular message digest algorithm
> * implementations, managed via crypto_register_ahash(),
> * crypto_register_shash(), crypto_unregister_ahash() and
> * crypto_unregister_shash().
> */
>
> -/*
> - * struct crypto_istat_hash - statistics for has algorithm
> - * @hash_cnt: number of hash requests
> - * @hash_tlen: total data size hashed
> - * @err_cnt: number of error for hash requests
> - */
> -struct crypto_istat_hash {
> - atomic64_t hash_cnt;
> - atomic64_t hash_tlen;
> - atomic64_t err_cnt;
> -};
> -
> -#ifdef CONFIG_CRYPTO_STATS
> -#define HASH_ALG_COMMON_STAT struct crypto_istat_hash stat;
> -#else
> -#define HASH_ALG_COMMON_STAT
> -#endif
> -
> /*
> * struct hash_alg_common - define properties of message digest
> - * @stat: Statistics for hash algorithm.
> * @digestsize: Size of the result of the transformation. A buffer of this size
> * must be available to the @final and @finup calls, so they can
> * store the resulting hash into it. For various predefined sizes,
> * search include/crypto/ using
> * git grep _DIGEST_SIZE include/crypto.
> * @statesize: Size of the block for partial state of the transformation. A
> * buffer of this size must be passed to the @export function as it
> * will save the partial state of the transformation into it. On the
> * other side, the @import function will load the state from a
> * buffer of this size as well.
> * @base: Start of data structure of cipher algorithm. The common data
> * structure of crypto_alg contains information common to all ciphers.
> * The hash_alg_common data structure now adds the hash-specific
> * information.
> */
> #define HASH_ALG_COMMON { \
> - HASH_ALG_COMMON_STAT \
> - \
> unsigned int digestsize; \
> unsigned int statesize; \
> \
> struct crypto_alg base; \
> }
> struct hash_alg_common HASH_ALG_COMMON;
>
> struct ahash_request {
> struct crypto_async_request base;
>
> @@ -236,21 +215,20 @@ struct shash_alg {
> int (*clone_tfm)(struct crypto_shash *dst, struct crypto_shash *src);
>
> unsigned int descsize;
>
> union {
> struct HASH_ALG_COMMON;
> struct hash_alg_common halg;
> };
> };
> #undef HASH_ALG_COMMON
> -#undef HASH_ALG_COMMON_STAT
>
> struct crypto_ahash {
> bool using_shash; /* Underlying algorithm is shash, not ahash */
> unsigned int statesize;
> unsigned int reqsize;
> struct crypto_tfm base;
> };
>
> struct crypto_shash {
> unsigned int descsize;
> diff --git a/include/crypto/internal/acompress.h b/include/crypto/internal/acompress.h
> index 4ac46bafba9d7..475e60a9f9ea9 100644
> --- a/include/crypto/internal/acompress.h
> +++ b/include/crypto/internal/acompress.h
> @@ -24,37 +24,32 @@
> * the instantiation time, right after the transformation context
> * was allocated. In case the cryptographic hardware has some
> * special requirements which need to be handled by software, this
> * function shall check for the precise requirement of the
> * transformation and put any software fallbacks in place.
> * @exit: Deinitialize the cryptographic transformation object. This is a
> * counterpart to @init, used to remove various changes set in
> * @init.
> *
> * @reqsize: Context size for (de)compression requests
> - * @stat: Statistics for compress algorithm
> * @base: Common crypto API algorithm data structure
> - * @calg: Cmonn algorithm data structure shared with scomp
> */
> struct acomp_alg {
> int (*compress)(struct acomp_req *req);
> int (*decompress)(struct acomp_req *req);
> void (*dst_free)(struct scatterlist *dst);
> int (*init)(struct crypto_acomp *tfm);
> void (*exit)(struct crypto_acomp *tfm);
>
> unsigned int reqsize;
>
> - union {
> - struct COMP_ALG_COMMON;
> - struct comp_alg_common calg;
> - };
> + struct crypto_alg base;
> };
>
> /*
> * Transform internal helpers.
> */
> static inline void *acomp_request_ctx(struct acomp_req *req)
> {
> return req->__ctx;
> }
>
> diff --git a/include/crypto/internal/cryptouser.h b/include/crypto/internal/cryptouser.h
> deleted file mode 100644
> index fd54074332f50..0000000000000
> --- a/include/crypto/internal/cryptouser.h
> +++ /dev/null
> @@ -1,16 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 */
> -#include <linux/cryptouser.h>
> -#include <net/netlink.h>
> -
> -struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact);
> -
> -#ifdef CONFIG_CRYPTO_STATS
> -int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs);
> -#else
> -static inline int crypto_reportstat(struct sk_buff *in_skb,
> - struct nlmsghdr *in_nlh,
> - struct nlattr **attrs)
> -{
> - return -ENOTSUPP;
> -}
> -#endif
> diff --git a/include/crypto/internal/scompress.h b/include/crypto/internal/scompress.h
> index 858fe3965ae34..5a75f2db18cef 100644
> --- a/include/crypto/internal/scompress.h
> +++ b/include/crypto/internal/scompress.h
> @@ -20,38 +20,32 @@ struct crypto_scomp {
> struct crypto_tfm base;
> };
>
> /**
> * struct scomp_alg - synchronous compression algorithm
> *
> * @alloc_ctx: Function allocates algorithm specific context
> * @free_ctx: Function frees context allocated with alloc_ctx
> * @compress: Function performs a compress operation
> * @decompress: Function performs a de-compress operation
> - * @stat: Statistics for compress algorithm
> * @base: Common crypto API algorithm data structure
> - * @calg: Cmonn algorithm data structure shared with acomp
> */
> struct scomp_alg {
> void *(*alloc_ctx)(struct crypto_scomp *tfm);
> void (*free_ctx)(struct crypto_scomp *tfm, void *ctx);
> int (*compress)(struct crypto_scomp *tfm, const u8 *src,
> unsigned int slen, u8 *dst, unsigned int *dlen,
> void *ctx);
> int (*decompress)(struct crypto_scomp *tfm, const u8 *src,
> unsigned int slen, u8 *dst, unsigned int *dlen,
> void *ctx);
> -
> - union {
> - struct COMP_ALG_COMMON;
> - struct comp_alg_common calg;
> - };
> + struct crypto_alg base;
> };
>
> static inline struct scomp_alg *__crypto_scomp_alg(struct crypto_alg *alg)
> {
> return container_of(alg, struct scomp_alg, base);
> }
>
> static inline struct crypto_scomp *__crypto_scomp_tfm(struct crypto_tfm *tfm)
> {
> return container_of(tfm, struct crypto_scomp, base);
> diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
> index 1988e24a0d1db..2d9c4de57b694 100644
> --- a/include/crypto/kpp.h
> +++ b/include/crypto/kpp.h
> @@ -44,34 +44,20 @@ struct kpp_request {
> * @reqsize: Request context size required by algorithm
> * implementation
> * @base: Common crypto API algorithm data structure
> */
> struct crypto_kpp {
> unsigned int reqsize;
>
> struct crypto_tfm base;
> };
>
> -/*
> - * struct crypto_istat_kpp - statistics for KPP algorithm
> - * @setsecret_cnt: number of setsecrey operation
> - * @generate_public_key_cnt: number of generate_public_key operation
> - * @compute_shared_secret_cnt: number of compute_shared_secret operation
> - * @err_cnt: number of error for KPP requests
> - */
> -struct crypto_istat_kpp {
> - atomic64_t setsecret_cnt;
> - atomic64_t generate_public_key_cnt;
> - atomic64_t compute_shared_secret_cnt;
> - atomic64_t err_cnt;
> -};
> -
> /**
> * struct kpp_alg - generic key-agreement protocol primitives
> *
> * @set_secret: Function invokes the protocol specific function to
> * store the secret private key along with parameters.
> * The implementation knows how to decode the buffer
> * @generate_public_key: Function generate the public key to be sent to the
> * counterpart. In case of error, where output is not big
> * enough req->dst_len will be updated to the size
> * required
> @@ -80,37 +66,32 @@ struct crypto_istat_kpp {
> * In case of error, where output is not big enough,
> * req->dst_len will be updated to the size required
> * @max_size: Function returns the size of the output buffer
> * @init: Initialize the object. This is called only once at
> * instantiation time. In case the cryptographic hardware
> * needs to be initialized. Software fallback should be
> * put in place here.
> * @exit: Undo everything @init did.
> *
> * @base: Common crypto API algorithm data structure
> - * @stat: Statistics for KPP algorithm
> */
> struct kpp_alg {
> int (*set_secret)(struct crypto_kpp *tfm, const void *buffer,
> unsigned int len);
> int (*generate_public_key)(struct kpp_request *req);
> int (*compute_shared_secret)(struct kpp_request *req);
>
> unsigned int (*max_size)(struct crypto_kpp *tfm);
>
> int (*init)(struct crypto_kpp *tfm);
> void (*exit)(struct crypto_kpp *tfm);
>
> -#ifdef CONFIG_CRYPTO_STATS
> - struct crypto_istat_kpp stat;
> -#endif
> -
> struct crypto_alg base;
> };
>
> /**
> * DOC: Generic Key-agreement Protocol Primitives API
> *
> * The KPP API is used with the algorithm type
> * CRYPTO_ALG_TYPE_KPP (listed as type "kpp" in /proc/crypto)
> */
>
> @@ -284,109 +265,76 @@ enum {
> *
> * @type: define type of secret. Each kpp type will define its own
> * @len: specify the len of the secret, include the header, that
> * follows the struct
> */
> struct kpp_secret {
> unsigned short type;
> unsigned short len;
> };
>
> -static inline struct crypto_istat_kpp *kpp_get_stat(struct kpp_alg *alg)
> -{
> -#ifdef CONFIG_CRYPTO_STATS
> - return &alg->stat;
> -#else
> - return NULL;
> -#endif
> -}
> -
> -static inline int crypto_kpp_errstat(struct kpp_alg *alg, int err)
> -{
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err && err != -EINPROGRESS && err != -EBUSY)
> - atomic64_inc(&kpp_get_stat(alg)->err_cnt);
> -
> - return err;
> -}
> -
> /**
> * crypto_kpp_set_secret() - Invoke kpp operation
> *
> * Function invokes the specific kpp operation for a given alg.
> *
> * @tfm: tfm handle
> * @buffer: Buffer holding the packet representation of the private
> * key. The structure of the packet key depends on the particular
> * KPP implementation. Packing and unpacking helpers are provided
> * for ECDH and DH (see the respective header files for those
> * implementations).
> * @len: Length of the packet private key buffer.
> *
> * Return: zero on success; error code in case of error
> */
> 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);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&kpp_get_stat(alg)->setsecret_cnt);
> -
> - return crypto_kpp_errstat(alg, alg->set_secret(tfm, buffer, len));
> + return crypto_kpp_alg(tfm)->set_secret(tfm, buffer, len);
> }
>
> /**
> * crypto_kpp_generate_public_key() - Invoke kpp operation
> *
> * Function invokes the specific kpp operation for generating the public part
> * for a given kpp algorithm.
> *
> * To generate a private key, the caller should use a random number generator.
> * The output of the requested length serves as the private key.
> *
> * @req: kpp key request
> *
> * Return: zero on success; error code in case of error
> */
> 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);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&kpp_get_stat(alg)->generate_public_key_cnt);
>
> - return crypto_kpp_errstat(alg, alg->generate_public_key(req));
> + return crypto_kpp_alg(tfm)->generate_public_key(req);
> }
>
> /**
> * crypto_kpp_compute_shared_secret() - Invoke kpp operation
> *
> * Function invokes the specific kpp operation for computing the shared secret
> * for a given kpp algorithm.
> *
> * @req: kpp key request
> *
> * Return: zero on success; error code in case of error
> */
> 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);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS))
> - atomic64_inc(&kpp_get_stat(alg)->compute_shared_secret_cnt);
>
> - return crypto_kpp_errstat(alg, alg->compute_shared_secret(req));
> + return crypto_kpp_alg(tfm)->compute_shared_secret(req);
> }
>
> /**
> * crypto_kpp_maxsize() - Get len for output buffer
> *
> * Function returns the output buffer size required for a given key.
> * Function assumes that the key is already set in the transformation. If this
> * function is called without a setkey or with a failed setkey, you will end up
> * in a NULL dereference.
> *
> diff --git a/include/crypto/rng.h b/include/crypto/rng.h
> index 6abe5102e5fb1..5ac4388f50e13 100644
> --- a/include/crypto/rng.h
> +++ b/include/crypto/rng.h
> @@ -8,72 +8,53 @@
>
> #ifndef _CRYPTO_RNG_H
> #define _CRYPTO_RNG_H
>
> #include <linux/atomic.h>
> #include <linux/container_of.h>
> #include <linux/crypto.h>
>
> struct crypto_rng;
>
> -/*
> - * struct crypto_istat_rng: statistics for RNG algorithm
> - * @generate_cnt: number of RNG generate requests
> - * @generate_tlen: total data size of generated data by the RNG
> - * @seed_cnt: number of times the RNG was seeded
> - * @err_cnt: number of error for RNG requests
> - */
> -struct crypto_istat_rng {
> - atomic64_t generate_cnt;
> - atomic64_t generate_tlen;
> - atomic64_t seed_cnt;
> - atomic64_t err_cnt;
> -};
> -
> /**
> * struct rng_alg - random number generator definition
> *
> * @generate: The function defined by this variable obtains a
> * random number. The random number generator transform
> * must generate the random number out of the context
> * provided with this call, plus any additional data
> * if provided to the call.
> * @seed: Seed or reseed the random number generator. With the
> * invocation of this function call, the random number
> * generator shall become ready for generation. If the
> * random number generator requires a seed for setting
> * up a new state, the seed must be provided by the
> * consumer while invoking this function. The required
> * size of the seed is defined with @seedsize .
> * @set_ent: Set entropy that would otherwise be obtained from
> * entropy source. Internal use only.
> - * @stat: Statistics for rng algorithm
> * @seedsize: The seed size required for a random number generator
> * initialization defined with this variable. Some
> * random number generators does not require a seed
> * as the seeding is implemented internally without
> * the need of support by the consumer. In this case,
> * the seed size is set to zero.
> * @base: Common crypto API algorithm data structure.
> */
> struct rng_alg {
> int (*generate)(struct crypto_rng *tfm,
> const u8 *src, unsigned int slen,
> u8 *dst, unsigned int dlen);
> int (*seed)(struct crypto_rng *tfm, const u8 *seed, unsigned int slen);
> void (*set_ent)(struct crypto_rng *tfm, const u8 *data,
> unsigned int len);
>
> -#ifdef CONFIG_CRYPTO_STATS
> - struct crypto_istat_rng stat;
> -#endif
> -
> unsigned int seedsize;
>
> struct crypto_alg base;
> };
>
> struct crypto_rng {
> struct crypto_tfm base;
> };
>
> extern struct crypto_rng *crypto_default_rng;
> @@ -137,69 +118,39 @@ static inline struct rng_alg *crypto_rng_alg(struct crypto_rng *tfm)
> * crypto_free_rng() - zeroize and free RNG handle
> * @tfm: cipher handle to be freed
> *
> * If @tfm is a NULL or error pointer, this function does nothing.
> */
> static inline void crypto_free_rng(struct crypto_rng *tfm)
> {
> crypto_destroy_tfm(tfm, crypto_rng_tfm(tfm));
> }
>
> -static inline struct crypto_istat_rng *rng_get_stat(struct rng_alg *alg)
> -{
> -#ifdef CONFIG_CRYPTO_STATS
> - return &alg->stat;
> -#else
> - return NULL;
> -#endif
> -}
> -
> -static inline int crypto_rng_errstat(struct rng_alg *alg, int err)
> -{
> - if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
> - return err;
> -
> - if (err && err != -EINPROGRESS && err != -EBUSY)
> - atomic64_inc(&rng_get_stat(alg)->err_cnt);
> -
> - return err;
> -}
> -
> /**
> * crypto_rng_generate() - get random number
> * @tfm: cipher handle
> * @src: Input buffer holding additional data, may be NULL
> * @slen: Length of additional data
> * @dst: output buffer holding the random numbers
> * @dlen: length of the output buffer
> *
> * This function fills the caller-allocated buffer with random
> * numbers using the random number generator referenced by the
> * cipher handle.
> *
> * Return: 0 function was successful; < 0 if an error occurred
> */
> static inline int crypto_rng_generate(struct crypto_rng *tfm,
> const u8 *src, unsigned int slen,
> u8 *dst, unsigned int dlen)
> {
> - struct rng_alg *alg = crypto_rng_alg(tfm);
> -
> - if (IS_ENABLED(CONFIG_CRYPTO_STATS)) {
> - struct crypto_istat_rng *istat = rng_get_stat(alg);
> -
> - atomic64_inc(&istat->generate_cnt);
> - atomic64_add(dlen, &istat->generate_tlen);
> - }
> -
> - return crypto_rng_errstat(alg,
> - alg->generate(tfm, src, slen, dst, dlen));
> + return crypto_rng_alg(tfm)->generate(tfm, src, slen, dst, dlen);
> }
>
> /**
> * crypto_rng_get_bytes() - get random number
> * @tfm: cipher handle
> * @rdata: output buffer holding the random numbers
> * @dlen: length of the output buffer
> *
> * This function fills the caller-allocated buffer with random numbers using the
> * random number generator referenced by the cipher handle.
> diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
> index c8857d7bdb37f..74d47e23374e6 100644
> --- a/include/crypto/skcipher.h
> +++ b/include/crypto/skcipher.h
> @@ -57,71 +57,46 @@ struct crypto_skcipher {
> };
>
> struct crypto_sync_skcipher {
> struct crypto_skcipher base;
> };
>
> struct crypto_lskcipher {
> struct crypto_tfm base;
> };
>
> -/*
> - * struct crypto_istat_cipher - statistics for cipher algorithm
> - * @encrypt_cnt: number of encrypt requests
> - * @encrypt_tlen: total data size handled by encrypt requests
> - * @decrypt_cnt: number of decrypt requests
> - * @decrypt_tlen: total data size handled by decrypt requests
> - * @err_cnt: number of error for cipher requests
> - */
> -struct crypto_istat_cipher {
> - atomic64_t encrypt_cnt;
> - atomic64_t encrypt_tlen;
> - atomic64_t decrypt_cnt;
> - atomic64_t decrypt_tlen;
> - atomic64_t err_cnt;
> -};
> -
> -#ifdef CONFIG_CRYPTO_STATS
> -#define SKCIPHER_ALG_COMMON_STAT struct crypto_istat_cipher stat;
> -#else
> -#define SKCIPHER_ALG_COMMON_STAT
> -#endif
> -
> /*
> * struct skcipher_alg_common - common properties of skcipher_alg
> * @min_keysize: Minimum key size supported by the transformation. This is the
> * smallest key length supported by this transformation algorithm.
> * This must be set to one of the pre-defined values as this is
> * not hardware specific. Possible values for this field can be
> * found via git grep "_MIN_KEY_SIZE" include/crypto/
> * @max_keysize: Maximum key size supported by the transformation. This is the
> * largest key length supported by this transformation algorithm.
> * This must be set to one of the pre-defined values as this is
> * not hardware specific. Possible values for this field can be
> * found via git grep "_MAX_KEY_SIZE" include/crypto/
> * @ivsize: IV size applicable for transformation. The consumer must provide an
> * IV of exactly that size to perform the encrypt or decrypt operation.
> * @chunksize: Equal to the block size except for stream ciphers such as
> * CTR where it is set to the underlying block size.
> * @statesize: Size of the internal state for the algorithm.
> - * @stat: Statistics for cipher algorithm
> * @base: Definition of a generic crypto algorithm.
> */
> #define SKCIPHER_ALG_COMMON { \
> unsigned int min_keysize; \
> unsigned int max_keysize; \
> unsigned int ivsize; \
> unsigned int chunksize; \
> unsigned int statesize; \
> \
> - SKCIPHER_ALG_COMMON_STAT \
> - \
> struct crypto_alg base; \
> }
> struct skcipher_alg_common SKCIPHER_ALG_COMMON;
>
> /**
> * struct skcipher_alg - symmetric key cipher definition
> * @setkey: Set key for the transformation. This function is used to either
> * program a supplied key into the hardware or store the key in the
> * transformation context for programming it later. Note that this
> * function does modify the transformation context. This function can
> diff --git a/include/uapi/linux/cryptouser.h b/include/uapi/linux/cryptouser.h
> index 5730c67f0617c..e163670d60f7d 100644
> --- a/include/uapi/linux/cryptouser.h
> +++ b/include/uapi/linux/cryptouser.h
> @@ -47,106 +47,114 @@ enum crypto_attr_type_t {
> CRYPTOCFGA_REPORT_LARVAL, /* struct crypto_report_larval */
> CRYPTOCFGA_REPORT_HASH, /* struct crypto_report_hash */
> CRYPTOCFGA_REPORT_BLKCIPHER, /* struct crypto_report_blkcipher */
> CRYPTOCFGA_REPORT_AEAD, /* struct crypto_report_aead */
> CRYPTOCFGA_REPORT_COMPRESS, /* struct crypto_report_comp */
> CRYPTOCFGA_REPORT_RNG, /* struct crypto_report_rng */
> CRYPTOCFGA_REPORT_CIPHER, /* struct crypto_report_cipher */
> 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_STAT_LARVAL, /* No longer supported */
> + CRYPTOCFGA_STAT_HASH, /* No longer supported */
> + CRYPTOCFGA_STAT_BLKCIPHER, /* No longer supported */
> + CRYPTOCFGA_STAT_AEAD, /* No longer supported */
> + CRYPTOCFGA_STAT_COMPRESS, /* No longer supported */
> + CRYPTOCFGA_STAT_RNG, /* No longer supported */
> + CRYPTOCFGA_STAT_CIPHER, /* No longer supported */
> + CRYPTOCFGA_STAT_AKCIPHER, /* No longer supported */
> + CRYPTOCFGA_STAT_KPP, /* No longer supported */
> + CRYPTOCFGA_STAT_ACOMP, /* No longer supported */
> __CRYPTOCFGA_MAX
>
> #define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
> };
>
> struct crypto_user_alg {
> char cru_name[CRYPTO_MAX_NAME];
> char cru_driver_name[CRYPTO_MAX_NAME];
> char cru_module_name[CRYPTO_MAX_NAME];
> __u32 cru_type;
> __u32 cru_mask;
> __u32 cru_refcnt;
> __u32 cru_flags;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_aead {
> char type[CRYPTO_MAX_NAME];
> __u64 stat_encrypt_cnt;
> __u64 stat_encrypt_tlen;
> __u64 stat_decrypt_cnt;
> __u64 stat_decrypt_tlen;
> __u64 stat_err_cnt;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_akcipher {
> char type[CRYPTO_MAX_NAME];
> __u64 stat_encrypt_cnt;
> __u64 stat_encrypt_tlen;
> __u64 stat_decrypt_cnt;
> __u64 stat_decrypt_tlen;
> __u64 stat_verify_cnt;
> __u64 stat_sign_cnt;
> __u64 stat_err_cnt;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_cipher {
> char type[CRYPTO_MAX_NAME];
> __u64 stat_encrypt_cnt;
> __u64 stat_encrypt_tlen;
> __u64 stat_decrypt_cnt;
> __u64 stat_decrypt_tlen;
> __u64 stat_err_cnt;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_compress {
> char type[CRYPTO_MAX_NAME];
> __u64 stat_compress_cnt;
> __u64 stat_compress_tlen;
> __u64 stat_decompress_cnt;
> __u64 stat_decompress_tlen;
> __u64 stat_err_cnt;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_hash {
> char type[CRYPTO_MAX_NAME];
> __u64 stat_hash_cnt;
> __u64 stat_hash_tlen;
> __u64 stat_err_cnt;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_kpp {
> char type[CRYPTO_MAX_NAME];
> __u64 stat_setsecret_cnt;
> __u64 stat_generate_public_key_cnt;
> __u64 stat_compute_shared_secret_cnt;
> __u64 stat_err_cnt;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_rng {
> char type[CRYPTO_MAX_NAME];
> __u64 stat_generate_cnt;
> __u64 stat_generate_tlen;
> __u64 stat_seed_cnt;
> __u64 stat_err_cnt;
> };
>
> +/* No longer supported, do not use. */
> struct crypto_stat_larval {
> char type[CRYPTO_MAX_NAME];
> };
>
> struct crypto_report_larval {
> char type[CRYPTO_MAX_NAME];
> };
>
> struct crypto_report_hash {
> char type[CRYPTO_MAX_NAME];
>
> base-commit: 7d42e097607c4d246d99225bf2b195b6167a210c
> --
> 2.43.2
>
>
Le Fri, Feb 23, 2024 at 01:03:34AM -0800, Eric Biggers a ?crit :
> From: Eric Biggers <[email protected]>
>
> Remove support for the "Crypto usage statistics" feature
> (CONFIG_CRYPTO_STATS). This feature does not appear to have ever been
> used, and it is harmful because it significantly reduces performance and
> is a large maintenance burden.
>
> Covering each of these points in detail:
>
> 1. Feature is not being used
>
> Since these generic crypto statistics are only readable using netlink,
> it's fairly straightforward to look for programs that use them. I'm
> unable to find any evidence that any such programs exist. For example,
> Debian Code Search returns no hits except the kernel header and kernel
> code itself and translations of the kernel header:
> https://codesearch.debian.net/search?q=CRYPTOCFGA_STAT&literal=1&perpkg=1
>
> The patch series that added this feature in 2018
> (https://lore.kernel.org/linux-crypto/[email protected]/)
> said "The goal is to have an ifconfig for crypto device." This doesn't
> appear to have happened.
>
> It's not clear that there is real demand for crypto statistics. Just
> because the kernel provides other types of statistics such as I/O and
> networking statistics and some people find those useful does not mean
> that crypto statistics are useful too.
>
> Further evidence that programs are not using CONFIG_CRYPTO_STATS is that
> it was able to be disabled in RHEL and Fedora as a bug fix
> (https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/2947).
>
> Even further evidence comes from the fact that there are and have been
> bugs in how the stats work, but they were never reported. For example,
> before Linux v6.7 hash stats were double-counted in most cases.
>
> There has also never been any documentation for this feature, so it
> might be hard to use even if someone wanted to.
>
> 2. CONFIG_CRYPTO_STATS significantly reduces performance
>
> Enabling CONFIG_CRYPTO_STATS significantly reduces the performance of
> the crypto API, even if no program ever retrieves the statistics. This
> primarily affects systems with large number of CPUs. For example,
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2039576 reported
> that Lustre client encryption performance improved from 21.7GB/s to
> 48.2GB/s by disabling CONFIG_CRYPTO_STATS.
>
> It can be argued that this means that CONFIG_CRYPTO_STATS should be
> optimized with per-cpu counters similar to many of the networking
> counters. But no one has done this in 5+ years. This is consistent
> with the fact that the feature appears to be unused, so there seems to
> be little interest in improving it as opposed to just disabling it.
>
> It can be argued that because CONFIG_CRYPTO_STATS is off by default,
> performance doesn't matter. But Linux distros tend to error on the side
> of enabling options. The option is enabled in Ubuntu and Arch Linux,
> and until recently was enabled in RHEL and Fedora (see above). So, even
> just having the option available is harmful to users.
>
> 3. CONFIG_CRYPTO_STATS is a large maintenance burden
>
> There are over 1000 lines of code associated with CONFIG_CRYPTO_STATS,
> spread among 32 files. It significantly complicates much of the
> implementation of the crypto API. After the initial submission, many
> fixes and refactorings have consumed effort of multiple people to keep
> this feature "working". We should be spending this effort elsewhere.
>
Hello
I need to acknowledge that I am very probably the only one user of this.
I wished to have done more and better, but this is clearly a fail.
I am sorry and you can remove all of this.
Acked-by: Corentin Labbe <[email protected]>
Regards
Eric Biggers <[email protected]> wrote:
> From: Eric Biggers <[email protected]>
>
> Remove support for the "Crypto usage statistics" feature
> (CONFIG_CRYPTO_STATS). This feature does not appear to have ever been
> used, and it is harmful because it significantly reduces performance and
> is a large maintenance burden.
>
> Covering each of these points in detail:
>
> 1. Feature is not being used
>
> Since these generic crypto statistics are only readable using netlink,
> it's fairly straightforward to look for programs that use them. I'm
> unable to find any evidence that any such programs exist. For example,
> Debian Code Search returns no hits except the kernel header and kernel
> code itself and translations of the kernel header:
> https://codesearch.debian.net/search?q=CRYPTOCFGA_STAT&literal=1&perpkg=1
>
> The patch series that added this feature in 2018
> (https://lore.kernel.org/linux-crypto/[email protected]/)
> said "The goal is to have an ifconfig for crypto device." This doesn't
> appear to have happened.
>
> It's not clear that there is real demand for crypto statistics. Just
> because the kernel provides other types of statistics such as I/O and
> networking statistics and some people find those useful does not mean
> that crypto statistics are useful too.
>
> Further evidence that programs are not using CONFIG_CRYPTO_STATS is that
> it was able to be disabled in RHEL and Fedora as a bug fix
> (https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/2947).
>
> Even further evidence comes from the fact that there are and have been
> bugs in how the stats work, but they were never reported. For example,
> before Linux v6.7 hash stats were double-counted in most cases.
>
> There has also never been any documentation for this feature, so it
> might be hard to use even if someone wanted to.
>
> 2. CONFIG_CRYPTO_STATS significantly reduces performance
>
> Enabling CONFIG_CRYPTO_STATS significantly reduces the performance of
> the crypto API, even if no program ever retrieves the statistics. This
> primarily affects systems with large number of CPUs. For example,
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2039576 reported
> that Lustre client encryption performance improved from 21.7GB/s to
> 48.2GB/s by disabling CONFIG_CRYPTO_STATS.
>
> It can be argued that this means that CONFIG_CRYPTO_STATS should be
> optimized with per-cpu counters similar to many of the networking
> counters. But no one has done this in 5+ years. This is consistent
> with the fact that the feature appears to be unused, so there seems to
> be little interest in improving it as opposed to just disabling it.
>
> It can be argued that because CONFIG_CRYPTO_STATS is off by default,
> performance doesn't matter. But Linux distros tend to error on the side
> of enabling options. The option is enabled in Ubuntu and Arch Linux,
> and until recently was enabled in RHEL and Fedora (see above). So, even
> just having the option available is harmful to users.
>
> 3. CONFIG_CRYPTO_STATS is a large maintenance burden
>
> There are over 1000 lines of code associated with CONFIG_CRYPTO_STATS,
> spread among 32 files. It significantly complicates much of the
> implementation of the crypto API. After the initial submission, many
> fixes and refactorings have consumed effort of multiple people to keep
> this feature "working". We should be spending this effort elsewhere.
>
> Cc: Corentin Labbe <[email protected]>
> Signed-off-by: Eric Biggers <[email protected]>
> ---
> arch/s390/configs/debug_defconfig | 1 -
> arch/s390/configs/defconfig | 1 -
> crypto/Kconfig | 20 ---
> crypto/Makefile | 2 -
> crypto/acompress.c | 47 +----
> crypto/aead.c | 84 +--------
> crypto/ahash.c | 63 +------
> crypto/akcipher.c | 31 ----
> crypto/compress.h | 5 -
> crypto/{crypto_user_base.c => crypto_user.c} | 10 +-
> crypto/crypto_user_stat.c | 176 -------------------
> crypto/hash.h | 30 ----
> crypto/kpp.c | 30 ----
> crypto/lskcipher.c | 73 +-------
> crypto/rng.c | 44 +----
> crypto/scompress.c | 8 +-
> crypto/shash.c | 75 +-------
> crypto/sig.c | 13 --
> crypto/skcipher.c | 86 +--------
> crypto/skcipher.h | 10 --
> include/crypto/acompress.h | 90 +---------
> include/crypto/aead.h | 21 ---
> include/crypto/akcipher.h | 78 +-------
> include/crypto/algapi.h | 3 -
> include/crypto/hash.h | 22 ---
> include/crypto/internal/acompress.h | 7 +-
> include/crypto/internal/cryptouser.h | 16 --
> include/crypto/internal/scompress.h | 8 +-
> include/crypto/kpp.h | 58 +-----
> include/crypto/rng.h | 51 +-----
> include/crypto/skcipher.h | 25 ---
> include/uapi/linux/cryptouser.h | 28 +--
> 32 files changed, 77 insertions(+), 1139 deletions(-)
> rename crypto/{crypto_user_base.c => crypto_user.c} (98%)
> delete mode 100644 crypto/crypto_user_stat.c
> delete mode 100644 include/crypto/internal/cryptouser.h
Patch applied. Thanks.
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt