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Subject[PATCH v3 1/2] crypto: Implement a generic crypto statistics
Date
This patch implement a generic way to get statistics about all crypto
usages.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
---
crypto/Kconfig | 11 +
crypto/Makefile | 1 +
crypto/ahash.c | 21 +-
crypto/algapi.c | 8 +
crypto/{crypto_user.c => crypto_user_base.c} | 9 +-
crypto/crypto_user_stat.c | 463 +++++++++++++++++++++++++++
crypto/rng.c | 1 +
include/crypto/acompress.h | 38 ++-
include/crypto/aead.h | 51 ++-
include/crypto/akcipher.h | 76 ++++-
include/crypto/hash.h | 32 +-
include/crypto/internal/cryptouser.h | 8 +
include/crypto/kpp.h | 51 ++-
include/crypto/rng.h | 29 +-
include/crypto/skcipher.h | 44 ++-
include/linux/crypto.h | 110 ++++++-
include/uapi/linux/cryptouser.h | 52 +++
17 files changed, 970 insertions(+), 35 deletions(-)
rename crypto/{crypto_user.c => crypto_user_base.c} (97%)
create mode 100644 crypto/crypto_user_stat.c
create mode 100644 include/crypto/internal/cryptouser.h

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 90f2811fac5f..4ef95b0b25a3 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1799,6 +1799,17 @@ config CRYPTO_USER_API_AEAD
This option enables the user-spaces interface for AEAD
cipher algorithms.

+config CRYPTO_STATS
+ bool "Crypto usage statistics for User-space"
+ help
+ This option enables the gathering of crypto stats.
+ This will collect:
+ - encrypt/decrypt size and numbers of symmeric operations
+ - compress/decompress size and numbers of compress operations
+ - size and numbers of hash operations
+ - encrypt/decrypt/sign/verify numbers for asymmetric operations
+ - generate/seed numbers for rng operations
+
config CRYPTO_HASH_INFO
bool

diff --git a/crypto/Makefile b/crypto/Makefile
index d719843f8b6e..ff5c2bbda04a 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -54,6 +54,7 @@ cryptomgr-y := algboss.o testmgr.o

obj-$(CONFIG_CRYPTO_MANAGER2) += cryptomgr.o
obj-$(CONFIG_CRYPTO_USER) += crypto_user.o
+crypto_user-y := crypto_user_base.o crypto_user_stat.o
obj-$(CONFIG_CRYPTO_CMAC) += cmac.o
obj-$(CONFIG_CRYPTO_HMAC) += hmac.o
obj-$(CONFIG_CRYPTO_VMAC) += vmac.o
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 78aaf2158c43..e21667b4e10a 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -364,24 +364,35 @@ static int crypto_ahash_op(struct ahash_request *req,

int crypto_ahash_final(struct ahash_request *req)
{
- return crypto_ahash_op(req, crypto_ahash_reqtfm(req)->final);
+ int ret;
+
+ ret = crypto_ahash_op(req, crypto_ahash_reqtfm(req)->final);
+ crypto_stat_ahash_final(req, ret);
+ return ret;
}
EXPORT_SYMBOL_GPL(crypto_ahash_final);

int crypto_ahash_finup(struct ahash_request *req)
{
- return crypto_ahash_op(req, crypto_ahash_reqtfm(req)->finup);
+ int ret;
+
+ ret = crypto_ahash_op(req, crypto_ahash_reqtfm(req)->finup);
+ crypto_stat_ahash_final(req, ret);
+ return ret;
}
EXPORT_SYMBOL_GPL(crypto_ahash_finup);

int crypto_ahash_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ int ret;

if (crypto_ahash_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
- return -ENOKEY;
-
- return crypto_ahash_op(req, tfm->digest);
+ ret = -ENOKEY;
+ else
+ ret = crypto_ahash_op(req, tfm->digest);
+ crypto_stat_ahash_final(req, ret);
+ return ret;
}
EXPORT_SYMBOL_GPL(crypto_ahash_digest);

diff --git a/crypto/algapi.c b/crypto/algapi.c
index 38daa8677da9..2545c5f89c4c 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -258,6 +258,14 @@ static struct crypto_larval *__crypto_register_alg(struct crypto_alg *alg)
list_add(&alg->cra_list, &crypto_alg_list);
list_add(&larval->alg.cra_list, &crypto_alg_list);

+ atomic_set(&alg->encrypt_cnt, 0);
+ atomic_set(&alg->decrypt_cnt, 0);
+ atomic64_set(&alg->encrypt_tlen, 0);
+ atomic64_set(&alg->decrypt_tlen, 0);
+ atomic_set(&alg->verify_cnt, 0);
+ atomic_set(&alg->cipher_err_cnt, 0);
+ atomic_set(&alg->sign_cnt, 0);
+
out:
return larval;

diff --git a/crypto/crypto_user.c b/crypto/crypto_user_base.c
similarity index 97%
rename from crypto/crypto_user.c
rename to crypto/crypto_user_base.c
index 0e89b5457cab..e41f6cc33fff 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user_base.c
@@ -29,6 +29,7 @@
#include <crypto/internal/rng.h>
#include <crypto/akcipher.h>
#include <crypto/kpp.h>
+#include <crypto/internal/cryptouser.h>

#include "internal.h"

@@ -37,7 +38,7 @@
static DEFINE_MUTEX(crypto_cfg_mutex);

/* The crypto netlink socket */
-static struct sock *crypto_nlsk;
+struct sock *crypto_nlsk;

struct crypto_dump_info {
struct sk_buff *in_skb;
@@ -46,7 +47,7 @@ struct crypto_dump_info {
u16 nlmsg_flags;
};

-static struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
+struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact)
{
struct crypto_alg *q, *alg = NULL;

@@ -461,6 +462,7 @@ static const int crypto_msg_min[CRYPTO_NR_MSGTYPES] = {
[CRYPTO_MSG_UPDATEALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[CRYPTO_MSG_GETALG - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
[CRYPTO_MSG_DELRNG - CRYPTO_MSG_BASE] = 0,
+ [CRYPTO_MSG_GETSTAT - CRYPTO_MSG_BASE] = MSGSIZE(crypto_user_alg),
};

static const struct nla_policy crypto_policy[CRYPTOCFGA_MAX+1] = {
@@ -481,6 +483,9 @@ static const struct crypto_link {
.dump = crypto_dump_report,
.done = crypto_dump_report_done},
[CRYPTO_MSG_DELRNG - CRYPTO_MSG_BASE] = { .doit = crypto_del_rng },
+ [CRYPTO_MSG_GETSTAT - CRYPTO_MSG_BASE] = { .doit = crypto_reportstat,
+ .dump = crypto_dump_reportstat,
+ .done = crypto_dump_reportstat_done},
};

static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
diff --git a/crypto/crypto_user_stat.c b/crypto/crypto_user_stat.c
new file mode 100644
index 000000000000..46ad3bae17bc
--- /dev/null
+++ b/crypto/crypto_user_stat.c
@@ -0,0 +1,463 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Crypto user configuration API.
+ *
+ * Copyright (C) 2017-2018 Corentin Labbe <clabbe@baylibre.com>
+ *
+ */
+
+#include <linux/crypto.h>
+#include <linux/cryptouser.h>
+#include <linux/sched.h>
+#include <net/netlink.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/internal/rng.h>
+#include <crypto/akcipher.h>
+#include <crypto/kpp.h>
+#include <crypto/internal/cryptouser.h>
+
+#include "internal.h"
+
+#define null_terminated(x) (strnlen(x, sizeof(x)) < sizeof(x))
+
+static DEFINE_MUTEX(crypto_cfg_mutex);
+
+extern struct sock *crypto_nlsk;
+
+struct crypto_dump_info {
+ struct sk_buff *in_skb;
+ struct sk_buff *out_skb;
+ u32 nlmsg_seq;
+ u16 nlmsg_flags;
+};
+
+static int crypto_report_aead(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat raead;
+ u64 v64;
+ u32 v32;
+
+ strncpy(raead.type, "aead", sizeof(raead.type));
+
+ v32 = atomic_read(&alg->encrypt_cnt);
+ raead.stat_encrypt_cnt = v32;
+ v64 = atomic64_read(&alg->encrypt_tlen);
+ raead.stat_encrypt_tlen = v64;
+ v32 = atomic_read(&alg->decrypt_cnt);
+ raead.stat_decrypt_cnt = v32;
+ v64 = atomic64_read(&alg->decrypt_tlen);
+ raead.stat_decrypt_tlen = v64;
+ v32 = atomic_read(&alg->aead_err_cnt);
+ raead.stat_aead_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_AEAD,
+ sizeof(struct crypto_stat), &raead))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_cipher(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat rcipher;
+ u64 v64;
+ u32 v32;
+
+ strlcpy(rcipher.type, "cipher", sizeof(rcipher.type));
+
+ v32 = atomic_read(&alg->encrypt_cnt);
+ rcipher.stat_encrypt_cnt = v32;
+ v64 = atomic64_read(&alg->encrypt_tlen);
+ rcipher.stat_encrypt_tlen = v64;
+ v32 = atomic_read(&alg->decrypt_cnt);
+ rcipher.stat_decrypt_cnt = v32;
+ v64 = atomic64_read(&alg->decrypt_tlen);
+ rcipher.stat_decrypt_tlen = v64;
+ v32 = atomic_read(&alg->cipher_err_cnt);
+ rcipher.stat_cipher_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_CIPHER,
+ sizeof(struct crypto_stat), &rcipher))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_comp(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat rcomp;
+ u64 v64;
+ u32 v32;
+
+ strlcpy(rcomp.type, "compression", sizeof(rcomp.type));
+ v32 = atomic_read(&alg->compress_cnt);
+ rcomp.stat_compress_cnt = v32;
+ v64 = atomic64_read(&alg->compress_tlen);
+ rcomp.stat_compress_tlen = v64;
+ v32 = atomic_read(&alg->decompress_cnt);
+ rcomp.stat_decompress_cnt = v32;
+ v64 = atomic64_read(&alg->decompress_tlen);
+ rcomp.stat_decompress_tlen = v64;
+ v32 = atomic_read(&alg->cipher_err_cnt);
+ rcomp.stat_compress_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_COMPRESS,
+ sizeof(struct crypto_stat), &rcomp))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_acomp(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat racomp;
+ u64 v64;
+ u32 v32;
+
+ strlcpy(racomp.type, "acomp", sizeof(racomp.type));
+ v32 = atomic_read(&alg->compress_cnt);
+ racomp.stat_compress_cnt = v32;
+ v64 = atomic64_read(&alg->compress_tlen);
+ racomp.stat_compress_tlen = v64;
+ v32 = atomic_read(&alg->decompress_cnt);
+ racomp.stat_decompress_cnt = v32;
+ v64 = atomic64_read(&alg->decompress_tlen);
+ racomp.stat_decompress_tlen = v64;
+ v32 = atomic_read(&alg->cipher_err_cnt);
+ racomp.stat_compress_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_ACOMP,
+ sizeof(struct crypto_stat), &racomp))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_akcipher(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat rakcipher;
+ u64 v64;
+ u32 v32;
+
+ strncpy(rakcipher.type, "akcipher", sizeof(rakcipher.type));
+ v32 = atomic_read(&alg->encrypt_cnt);
+ rakcipher.stat_encrypt_cnt = v32;
+ v64 = atomic64_read(&alg->encrypt_tlen);
+ rakcipher.stat_encrypt_tlen = v64;
+ v32 = atomic_read(&alg->decrypt_cnt);
+ rakcipher.stat_decrypt_cnt = v32;
+ v64 = atomic64_read(&alg->decrypt_tlen);
+ rakcipher.stat_decrypt_tlen = v64;
+ v32 = atomic_read(&alg->sign_cnt);
+ rakcipher.stat_sign_cnt = v32;
+ v32 = atomic_read(&alg->verify_cnt);
+ rakcipher.stat_verify_cnt = v32;
+ v32 = atomic_read(&alg->akcipher_err_cnt);
+ rakcipher.stat_akcipher_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_AKCIPHER,
+ sizeof(struct crypto_stat), &rakcipher))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_kpp(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat rkpp;
+ u32 v;
+
+ strlcpy(rkpp.type, "kpp", sizeof(rkpp.type));
+
+ v = atomic_read(&alg->setsecret_cnt);
+ rkpp.stat_setsecret_cnt = v;
+ v = atomic_read(&alg->generate_public_key_cnt);
+ rkpp.stat_generate_public_key_cnt = v;
+ v = atomic_read(&alg->compute_shared_secret_cnt);
+ rkpp.stat_compute_shared_secret_cnt = v;
+ v = atomic_read(&alg->kpp_err_cnt);
+ rkpp.stat_kpp_err_cnt = v;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_KPP,
+ sizeof(struct crypto_stat), &rkpp))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_ahash(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat rhash;
+ u64 v64;
+ u32 v32;
+
+ strncpy(rhash.type, "ahash", sizeof(rhash.type));
+
+ v32 = atomic_read(&alg->hash_cnt);
+ rhash.stat_hash_cnt = v32;
+ v64 = atomic64_read(&alg->hash_tlen);
+ rhash.stat_hash_tlen = v64;
+ v32 = atomic_read(&alg->hash_err_cnt);
+ rhash.stat_hash_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_HASH,
+ sizeof(struct crypto_stat), &rhash))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_shash(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat rhash;
+ u64 v64;
+ u32 v32;
+
+ strncpy(rhash.type, "shash", sizeof(rhash.type));
+
+ v32 = atomic_read(&alg->hash_cnt);
+ rhash.stat_hash_cnt = v32;
+ v64 = atomic64_read(&alg->hash_tlen);
+ rhash.stat_hash_tlen = v64;
+ v32 = atomic_read(&alg->hash_err_cnt);
+ rhash.stat_hash_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_HASH,
+ sizeof(struct crypto_stat), &rhash))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_report_rng(struct sk_buff *skb, struct crypto_alg *alg)
+{
+ struct crypto_stat rrng;
+ u64 v64;
+ u32 v32;
+
+ strncpy(rrng.type, "rng", sizeof(rrng.type));
+
+ v32 = atomic_read(&alg->generate_cnt);
+ rrng.stat_generate_cnt = v32;
+ v64 = atomic64_read(&alg->generate_tlen);
+ rrng.stat_generate_tlen = v64;
+ v32 = atomic_read(&alg->seed_cnt);
+ rrng.stat_seed_cnt = v32;
+ v32 = atomic_read(&alg->hash_err_cnt);
+ rrng.stat_rng_err_cnt = v32;
+
+ if (nla_put(skb, CRYPTOCFGA_STAT_RNG,
+ sizeof(struct crypto_stat), &rrng))
+ goto nla_put_failure;
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_reportstat_one(struct crypto_alg *alg,
+ struct crypto_user_alg *ualg,
+ struct sk_buff *skb)
+{
+ strlcpy(ualg->cru_name, alg->cra_name, sizeof(ualg->cru_name));
+ strlcpy(ualg->cru_driver_name, alg->cra_driver_name,
+ sizeof(ualg->cru_driver_name));
+ strlcpy(ualg->cru_module_name, module_name(alg->cra_module),
+ sizeof(ualg->cru_module_name));
+
+ ualg->cru_type = 0;
+ ualg->cru_mask = 0;
+ ualg->cru_flags = alg->cra_flags;
+ ualg->cru_refcnt = refcount_read(&alg->cra_refcnt);
+
+ if (nla_put_u32(skb, CRYPTOCFGA_PRIORITY_VAL, alg->cra_priority))
+ goto nla_put_failure;
+ if (alg->cra_flags & CRYPTO_ALG_LARVAL) {
+ struct crypto_stat rl;
+
+ strlcpy(rl.type, "larval", sizeof(rl.type));
+ if (nla_put(skb, CRYPTOCFGA_STAT_LARVAL,
+ sizeof(struct crypto_stat), &rl))
+ goto nla_put_failure;
+ goto out;
+ }
+
+ switch (alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL)) {
+ case CRYPTO_ALG_TYPE_AEAD:
+ if (crypto_report_aead(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_SKCIPHER:
+ if (crypto_report_cipher(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_BLKCIPHER:
+ if (crypto_report_cipher(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_CIPHER:
+ if (crypto_report_cipher(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_COMPRESS:
+ if (crypto_report_comp(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_ACOMPRESS:
+ if (crypto_report_acomp(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_SCOMPRESS:
+ if (crypto_report_acomp(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_AKCIPHER:
+ if (crypto_report_akcipher(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_KPP:
+ if (crypto_report_kpp(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_AHASH:
+ if (crypto_report_ahash(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_HASH:
+ if (crypto_report_shash(skb, alg))
+ goto nla_put_failure;
+ break;
+ case CRYPTO_ALG_TYPE_RNG:
+ if (crypto_report_rng(skb, alg))
+ goto nla_put_failure;
+ break;
+ default:
+ pr_err("ERROR: Unhandled alg %d in %s\n",
+ alg->cra_flags & (CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_LARVAL),
+ __func__);
+ }
+
+out:
+ return 0;
+
+nla_put_failure:
+ return -EMSGSIZE;
+}
+
+static int crypto_reportstat_alg(struct crypto_alg *alg,
+ struct crypto_dump_info *info)
+{
+ struct sk_buff *in_skb = info->in_skb;
+ struct sk_buff *skb = info->out_skb;
+ struct nlmsghdr *nlh;
+ struct crypto_user_alg *ualg;
+ int err = 0;
+
+ nlh = nlmsg_put(skb, NETLINK_CB(in_skb).portid, info->nlmsg_seq,
+ CRYPTO_MSG_GETSTAT, sizeof(*ualg), info->nlmsg_flags);
+ if (!nlh) {
+ err = -EMSGSIZE;
+ goto out;
+ }
+
+ ualg = nlmsg_data(nlh);
+
+ err = crypto_reportstat_one(alg, ualg, skb);
+ if (err) {
+ nlmsg_cancel(skb, nlh);
+ goto out;
+ }
+
+ nlmsg_end(skb, nlh);
+
+out:
+ return err;
+}
+
+int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh,
+ struct nlattr **attrs)
+{
+ struct crypto_user_alg *p = nlmsg_data(in_nlh);
+ struct crypto_alg *alg;
+ struct sk_buff *skb;
+ struct crypto_dump_info info;
+ int err;
+
+ if (!null_terminated(p->cru_name) || !null_terminated(p->cru_driver_name))
+ return -EINVAL;
+
+ alg = crypto_alg_match(p, 0);
+ if (!alg)
+ return -ENOENT;
+
+ err = -ENOMEM;
+ skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+ if (!skb)
+ goto drop_alg;
+
+ info.in_skb = in_skb;
+ info.out_skb = skb;
+ info.nlmsg_seq = in_nlh->nlmsg_seq;
+ info.nlmsg_flags = 0;
+
+ err = crypto_reportstat_alg(alg, &info);
+
+drop_alg:
+ crypto_mod_put(alg);
+
+ if (err)
+ return err;
+
+ return nlmsg_unicast(crypto_nlsk, skb, NETLINK_CB(in_skb).portid);
+}
+
+int crypto_dump_reportstat(struct sk_buff *skb, struct netlink_callback *cb)
+{
+ struct crypto_alg *alg;
+ struct crypto_dump_info info;
+ int err;
+
+ if (cb->args[0])
+ goto out;
+
+ cb->args[0] = 1;
+
+ info.in_skb = cb->skb;
+ info.out_skb = skb;
+ info.nlmsg_seq = cb->nlh->nlmsg_seq;
+ info.nlmsg_flags = NLM_F_MULTI;
+
+ list_for_each_entry(alg, &crypto_alg_list, cra_list) {
+ err = crypto_reportstat_alg(alg, &info);
+ if (err)
+ goto out_err;
+ }
+
+out:
+ return skb->len;
+out_err:
+ return err;
+}
+
+int crypto_dump_reportstat_done(struct netlink_callback *cb)
+{
+ return 0;
+}
+
+MODULE_LICENSE("GPL");
diff --git a/crypto/rng.c b/crypto/rng.c
index b4a618668161..547f16ecbfb0 100644
--- a/crypto/rng.c
+++ b/crypto/rng.c
@@ -50,6 +50,7 @@ int crypto_rng_reset(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)
}

err = crypto_rng_alg(tfm)->seed(tfm, seed, slen);
+ crypto_stat_rng_seed(tfm, err);
out:
kzfree(buf);
return err;
diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h
index e328b52425a8..22e6f412c595 100644
--- a/include/crypto/acompress.h
+++ b/include/crypto/acompress.h
@@ -234,6 +234,34 @@ static inline void acomp_request_set_params(struct acomp_req *req,
req->flags |= CRYPTO_ACOMP_ALLOC_OUTPUT;
}

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

- return tfm->compress(req);
+ ret = tfm->compress(req);
+ crypto_stat_compress(req, ret);
+ return ret;
}

/**
@@ -262,8 +293,11 @@ static inline int crypto_acomp_compress(struct acomp_req *req)
static inline int crypto_acomp_decompress(struct acomp_req *req)
{
struct crypto_acomp *tfm = crypto_acomp_reqtfm(req);
+ int ret;

- return tfm->decompress(req);
+ ret = tfm->decompress(req);
+ crypto_stat_decompress(req, ret);
+ return ret;
}

#endif
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 1e26f790b03f..0d765d7bfb82 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -306,6 +306,34 @@ static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
return __crypto_aead_cast(req->base.tfm);
}

+static inline void crypto_stat_aead_encrypt(struct aead_request *req, int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&tfm->base.__crt_alg->aead_err_cnt);
+ } else {
+ atomic_inc(&tfm->base.__crt_alg->encrypt_cnt);
+ atomic64_add(req->cryptlen, &tfm->base.__crt_alg->encrypt_tlen);
+ }
+#endif
+}
+
+static inline void crypto_stat_aead_decrypt(struct aead_request *req, int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&tfm->base.__crt_alg->aead_err_cnt);
+ } else {
+ atomic_inc(&tfm->base.__crt_alg->decrypt_cnt);
+ atomic64_add(req->cryptlen, &tfm->base.__crt_alg->decrypt_tlen);
+ }
+#endif
+}
+
/**
* crypto_aead_encrypt() - encrypt plaintext
* @req: reference to the aead_request handle that holds all information
@@ -328,11 +356,14 @@ static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
static inline int crypto_aead_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ int ret;

if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
- return -ENOKEY;
-
- return crypto_aead_alg(aead)->encrypt(req);
+ ret = -ENOKEY;
+ else
+ ret = crypto_aead_alg(aead)->encrypt(req);
+ crypto_stat_aead_encrypt(req, ret);
+ return ret;
}

/**
@@ -360,14 +391,16 @@ static inline int crypto_aead_encrypt(struct aead_request *req)
static inline int crypto_aead_decrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
+ int ret;

if (crypto_aead_get_flags(aead) & CRYPTO_TFM_NEED_KEY)
- return -ENOKEY;
-
- if (req->cryptlen < crypto_aead_authsize(aead))
- return -EINVAL;
-
- return crypto_aead_alg(aead)->decrypt(req);
+ ret = -ENOKEY;
+ else if (req->cryptlen < crypto_aead_authsize(aead))
+ ret = -EINVAL;
+ else
+ ret = crypto_aead_alg(aead)->decrypt(req);
+ crypto_stat_aead_decrypt(req, ret);
+ return ret;
}

/**
diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
index 8e0f752286e4..ee072a82d39d 100644
--- a/include/crypto/akcipher.h
+++ b/include/crypto/akcipher.h
@@ -271,6 +271,62 @@ static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *tfm)
return alg->max_size(tfm);
}

+static inline void crypto_stat_akcipher_encrypt(struct akcipher_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
+ } else {
+ atomic_inc(&tfm->base.__crt_alg->encrypt_cnt);
+ atomic64_add(req->src_len, &tfm->base.__crt_alg->encrypt_tlen);
+ }
+#endif
+}
+
+static inline void crypto_stat_akcipher_decrypt(struct akcipher_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
+ } else {
+ atomic_inc(&tfm->base.__crt_alg->decrypt_cnt);
+ atomic64_add(req->src_len, &tfm->base.__crt_alg->decrypt_tlen);
+ }
+#endif
+}
+
+static inline void crypto_stat_akcipher_sign(struct akcipher_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY)
+ atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
+ else
+ atomic_inc(&tfm->base.__crt_alg->sign_cnt);
+#endif
+}
+
+static inline void crypto_stat_akcipher_verify(struct akcipher_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY)
+ atomic_inc(&tfm->base.__crt_alg->akcipher_err_cnt);
+ else
+ atomic_inc(&tfm->base.__crt_alg->verify_cnt);
+#endif
+}
+
/**
* crypto_akcipher_encrypt() - Invoke public key encrypt operation
*
@@ -285,8 +341,11 @@ static inline int crypto_akcipher_encrypt(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+ int ret;

- return alg->encrypt(req);
+ ret = alg->encrypt(req);
+ crypto_stat_akcipher_encrypt(req, ret);
+ return ret;
}

/**
@@ -303,8 +362,11 @@ static inline int crypto_akcipher_decrypt(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+ int ret;

- return alg->decrypt(req);
+ ret = alg->decrypt(req);
+ crypto_stat_akcipher_decrypt(req, ret);
+ return ret;
}

/**
@@ -321,8 +383,11 @@ static inline int crypto_akcipher_sign(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+ int ret;

- return alg->sign(req);
+ ret = alg->sign(req);
+ crypto_stat_akcipher_sign(req, ret);
+ return ret;
}

/**
@@ -339,8 +404,11 @@ static inline int crypto_akcipher_verify(struct akcipher_request *req)
{
struct crypto_akcipher *tfm = crypto_akcipher_reqtfm(req);
struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+ int ret;

- return alg->verify(req);
+ ret = alg->verify(req);
+ crypto_stat_akcipher_verify(req, ret);
+ return ret;
}

/**
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 21587011ab0f..bc7796600338 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -412,6 +412,32 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
unsigned int keylen);

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

/**
diff --git a/include/crypto/internal/cryptouser.h b/include/crypto/internal/cryptouser.h
new file mode 100644
index 000000000000..8db299c25566
--- /dev/null
+++ b/include/crypto/internal/cryptouser.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <net/netlink.h>
+
+struct crypto_alg *crypto_alg_match(struct crypto_user_alg *p, int exact);
+
+int crypto_dump_reportstat(struct sk_buff *skb, struct netlink_callback *cb);
+int crypto_reportstat(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, struct nlattr **attrs);
+int crypto_dump_reportstat_done(struct netlink_callback *cb);
diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
index 1bde0a6514fa..f517ba6d3a27 100644
--- a/include/crypto/kpp.h
+++ b/include/crypto/kpp.h
@@ -268,6 +268,42 @@ struct kpp_secret {
unsigned short len;
};

+static inline void crypto_stat_kpp_set_secret(struct crypto_kpp *tfm, int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ if (ret)
+ atomic_inc(&tfm->base.__crt_alg->kpp_err_cnt);
+ else
+ atomic_inc(&tfm->base.__crt_alg->setsecret_cnt);
+#endif
+}
+
+static inline void crypto_stat_kpp_generate_public_key(struct kpp_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+
+ if (ret)
+ atomic_inc(&tfm->base.__crt_alg->kpp_err_cnt);
+ else
+ atomic_inc(&tfm->base.__crt_alg->generate_public_key_cnt);
+#endif
+}
+
+static inline void crypto_stat_kpp_compute_shared_secret(struct kpp_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+
+ if (ret)
+ atomic_inc(&tfm->base.__crt_alg->kpp_err_cnt);
+ else
+ atomic_inc(&tfm->base.__crt_alg->compute_shared_secret_cnt);
+#endif
+}
+
/**
* crypto_kpp_set_secret() - Invoke kpp operation
*
@@ -287,8 +323,11 @@ static inline int crypto_kpp_set_secret(struct crypto_kpp *tfm,
const void *buffer, unsigned int len)
{
struct kpp_alg *alg = crypto_kpp_alg(tfm);
+ int ret;

- return alg->set_secret(tfm, buffer, len);
+ ret = alg->set_secret(tfm, buffer, len);
+ crypto_stat_kpp_set_secret(tfm, ret);
+ return ret;
}

/**
@@ -308,8 +347,11 @@ static inline int crypto_kpp_generate_public_key(struct kpp_request *req)
{
struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
struct kpp_alg *alg = crypto_kpp_alg(tfm);
+ int ret;

- return alg->generate_public_key(req);
+ ret = alg->generate_public_key(req);
+ crypto_stat_kpp_generate_public_key(req, ret);
+ return ret;
}

/**
@@ -326,8 +368,11 @@ static inline int crypto_kpp_compute_shared_secret(struct kpp_request *req)
{
struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
struct kpp_alg *alg = crypto_kpp_alg(tfm);
+ int ret;

- return alg->compute_shared_secret(req);
+ ret = alg->compute_shared_secret(req);
+ crypto_stat_kpp_compute_shared_secret(req, ret);
+ return ret;
}

/**
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
index 42811936a361..0d781fa77161 100644
--- a/include/crypto/rng.h
+++ b/include/crypto/rng.h
@@ -122,6 +122,29 @@ static inline void crypto_free_rng(struct crypto_rng *tfm)
crypto_destroy_tfm(tfm, crypto_rng_tfm(tfm));
}

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

/**
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index 2f327f090c3e..ffa3df325ca3 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -422,6 +422,32 @@ static inline struct crypto_skcipher *crypto_skcipher_reqtfm(
return __crypto_skcipher_cast(req->base.tfm);
}

+static inline void crypto_stat_skcipher_encrypt(struct skcipher_request *req,
+ int ret, struct crypto_alg *alg)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&alg->cipher_err_cnt);
+ } else {
+ atomic_inc(&alg->encrypt_cnt);
+ atomic64_add(req->cryptlen, &alg->encrypt_tlen);
+ }
+#endif
+}
+
+static inline void crypto_stat_skcipher_decrypt(struct skcipher_request *req,
+ int ret, struct crypto_alg *alg)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&alg->cipher_err_cnt);
+ } else {
+ atomic_inc(&alg->decrypt_cnt);
+ atomic64_add(req->cryptlen, &alg->decrypt_tlen);
+ }
+#endif
+}
+
/**
* crypto_skcipher_encrypt() - encrypt plaintext
* @req: reference to the skcipher_request handle that holds all information
@@ -436,11 +462,14 @@ static inline struct crypto_skcipher *crypto_skcipher_reqtfm(
static inline int crypto_skcipher_encrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ int ret;

if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
- return -ENOKEY;
-
- return tfm->encrypt(req);
+ ret = -ENOKEY;
+ else
+ ret = tfm->encrypt(req);
+ crypto_stat_skcipher_encrypt(req, ret, tfm->base.__crt_alg);
+ return ret;
}

/**
@@ -457,11 +486,14 @@ static inline int crypto_skcipher_encrypt(struct skcipher_request *req)
static inline int crypto_skcipher_decrypt(struct skcipher_request *req)
{
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ int ret;

if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY)
- return -ENOKEY;
-
- return tfm->decrypt(req);
+ ret = -ENOKEY;
+ else
+ ret = tfm->decrypt(req);
+ crypto_stat_skcipher_decrypt(req, ret, tfm->base.__crt_alg);
+ return ret;
}

/**
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index e8839d3a7559..3634ad6fe202 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -454,6 +454,33 @@ struct compress_alg {
* @cra_refcnt: internally used
* @cra_destroy: internally used
*
+ * All following statistics are for this crypto_alg
+ * @encrypt_cnt: number of encrypt requests
+ * @decrypt_cnt: number of decrypt requests
+ * @compress_cnt: number of compress requests
+ * @decompress_cnt: number of decompress requests
+ * @generate_cnt: number of RNG generate requests
+ * @seed_cnt: number of times the rng was seeded
+ * @hash_cnt: number of hash requests
+ * @sign_cnt: number of sign requests
+ * @setsecret_cnt: number of setsecrey operation
+ * @generate_public_key_cnt: number of generate_public_key operation
+ * @verify_cnt: number of verify operation
+ * @compute_shared_secret_cnt: number of compute_shared_secret operation
+ * @encrypt_tlen: total data size handled by encrypt requests
+ * @decrypt_tlen: total data size handled by decrypt requests
+ * @compress_tlen: total data size handled by compress requests
+ * @decompress_tlen: total data size handled by decompress requests
+ * @generate_tlen: total data size of generated data by the RNG
+ * @hash_tlen: total data size hashed
+ * @akcipher_err_cnt: number of error for akcipher requests
+ * @cipher_err_cnt: number of error for akcipher requests
+ * @compress_err_cnt: number of error for akcipher requests
+ * @aead_err_cnt: number of error for akcipher requests
+ * @hash_err_cnt: number of error for akcipher requests
+ * @rng_err_cnt: number of error for akcipher requests
+ * @kpp_err_cnt: number of error for akcipher requests
+ *
* The struct crypto_alg describes a generic Crypto API algorithm and is common
* for all of the transformations. Any variable not documented here shall not
* be used by a cipher implementation as it is internal to the Crypto API.
@@ -487,6 +514,45 @@ struct crypto_alg {
void (*cra_destroy)(struct crypto_alg *alg);

struct module *cra_module;
+
+ union {
+ atomic_t encrypt_cnt;
+ atomic_t compress_cnt;
+ atomic_t generate_cnt;
+ atomic_t hash_cnt;
+ atomic_t setsecret_cnt;
+ };
+ union {
+ atomic64_t encrypt_tlen;
+ atomic64_t compress_tlen;
+ atomic64_t generate_tlen;
+ atomic64_t hash_tlen;
+ };
+ union {
+ atomic_t akcipher_err_cnt;
+ atomic_t cipher_err_cnt;
+ atomic_t compress_err_cnt;
+ atomic_t aead_err_cnt;
+ atomic_t hash_err_cnt;
+ atomic_t rng_err_cnt;
+ atomic_t kpp_err_cnt;
+ };
+ union {
+ atomic_t decrypt_cnt;
+ atomic_t decompress_cnt;
+ atomic_t seed_cnt;
+ atomic_t generate_public_key_cnt;
+ };
+ union {
+ atomic64_t decrypt_tlen;
+ atomic64_t decompress_tlen;
+ };
+ union {
+ atomic_t verify_cnt;
+ atomic_t compute_shared_secret_cnt;
+ };
+ atomic_t sign_cnt;
+
} CRYPTO_MINALIGN_ATTR;

/*
@@ -907,6 +973,38 @@ static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
return __crypto_ablkcipher_cast(req->base.tfm);
}

+static inline void crypto_stat_ablkcipher_encrypt(struct ablkcipher_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct ablkcipher_tfm *crt =
+ crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&crt->base->base.__crt_alg->cipher_err_cnt);
+ } else {
+ atomic_inc(&crt->base->base.__crt_alg->encrypt_cnt);
+ atomic64_add(req->nbytes, &crt->base->base.__crt_alg->encrypt_tlen);
+ }
+#endif
+}
+
+static inline void crypto_stat_ablkcipher_decrypt(struct ablkcipher_request *req,
+ int ret)
+{
+#ifdef CONFIG_CRYPTO_STATS
+ struct ablkcipher_tfm *crt =
+ crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
+
+ if (ret && ret != -EINPROGRESS && ret != -EBUSY) {
+ atomic_inc(&crt->base->base.__crt_alg->cipher_err_cnt);
+ } else {
+ atomic_inc(&crt->base->base.__crt_alg->decrypt_cnt);
+ atomic64_add(req->nbytes, &crt->base->base.__crt_alg->decrypt_tlen);
+ }
+#endif
+}
+
/**
* crypto_ablkcipher_encrypt() - encrypt plaintext
* @req: reference to the ablkcipher_request handle that holds all information
@@ -922,7 +1020,11 @@ static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
{
struct ablkcipher_tfm *crt =
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
- return crt->encrypt(req);
+ int ret;
+
+ ret = crt->encrypt(req);
+ crypto_stat_ablkcipher_encrypt(req, ret);
+ return ret;
}

/**
@@ -940,7 +1042,11 @@ static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
{
struct ablkcipher_tfm *crt =
crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
- return crt->decrypt(req);
+ int ret;
+
+ ret = crt->decrypt(req);
+ crypto_stat_ablkcipher_decrypt(req, ret);
+ return ret;
}

/**
diff --git a/include/uapi/linux/cryptouser.h b/include/uapi/linux/cryptouser.h
index 19bf0ca6d635..6dafbc3e4414 100644
--- a/include/uapi/linux/cryptouser.h
+++ b/include/uapi/linux/cryptouser.h
@@ -29,6 +29,7 @@ enum {
CRYPTO_MSG_UPDATEALG,
CRYPTO_MSG_GETALG,
CRYPTO_MSG_DELRNG,
+ CRYPTO_MSG_GETSTAT,
__CRYPTO_MSG_MAX
};
#define CRYPTO_MSG_MAX (__CRYPTO_MSG_MAX - 1)
@@ -50,6 +51,16 @@ enum crypto_attr_type_t {
CRYPTOCFGA_REPORT_AKCIPHER, /* struct crypto_report_akcipher */
CRYPTOCFGA_REPORT_KPP, /* struct crypto_report_kpp */
CRYPTOCFGA_REPORT_ACOMP, /* struct crypto_report_acomp */
+ CRYPTOCFGA_STAT_LARVAL, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_HASH, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_BLKCIPHER, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_AEAD, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_COMPRESS, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_RNG, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_CIPHER, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_AKCIPHER, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_KPP, /* struct crypto_stat */
+ CRYPTOCFGA_STAT_ACOMP, /* struct crypto_stat */
__CRYPTOCFGA_MAX

#define CRYPTOCFGA_MAX (__CRYPTOCFGA_MAX - 1)
@@ -65,6 +76,47 @@ struct crypto_user_alg {
__u32 cru_flags;
};

+struct crypto_stat {
+ char type[CRYPTO_MAX_NAME];
+ union {
+ __u32 stat_encrypt_cnt;
+ __u32 stat_compress_cnt;
+ __u32 stat_generate_cnt;
+ __u32 stat_hash_cnt;
+ __u32 stat_setsecret_cnt;
+ };
+ union {
+ __u64 stat_encrypt_tlen;
+ __u64 stat_compress_tlen;
+ __u64 stat_generate_tlen;
+ __u64 stat_hash_tlen;
+ };
+ union {
+ __u32 stat_akcipher_err_cnt;
+ __u32 stat_cipher_err_cnt;
+ __u32 stat_compress_err_cnt;
+ __u32 stat_aead_err_cnt;
+ __u32 stat_hash_err_cnt;
+ __u32 stat_rng_err_cnt;
+ __u32 stat_kpp_err_cnt;
+ };
+ union {
+ __u32 stat_decrypt_cnt;
+ __u32 stat_decompress_cnt;
+ __u32 stat_seed_cnt;
+ __u32 stat_generate_public_key_cnt;
+ };
+ union {
+ __u64 stat_decrypt_tlen;
+ __u64 stat_decompress_tlen;
+ };
+ union {
+ __u32 stat_verify_cnt;
+ __u32 stat_compute_shared_secret_cnt;
+ };
+ __u32 stat_sign_cnt;
+};
+
struct crypto_report_larval {
char type[CRYPTO_MAX_NAME];
};
--
2.16.4
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