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Subject[PATCH v3 0/2] crypto: Implement a generic crypto statistics
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This patch is a try to implement a generic crypto driver statistics.
The goal is to have an "ifconfig" for crypto device.

Some driver tried to implement this via a debugfs interface.

This serie do it directly in the crypto API and give access to stats
via the crypto_user(netlink) API.
Then an userspace tool will collect information via netlink.
Note that this userspace tool is heavily copied from libkcapi and if
Stephan Mueller agree, I will made a PR for adding getstat to it unless
tools/crypto is the good place for it.

Example of output:
pkcs1pad(rsa-sun8i-ce,sha1) Akcipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Sign: 0
Verify: 5
Errors: 0
cryptd(__xts-aes-ce) cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
xts-aes-ce cipher
Encrypt: 17 bytes: 4384
Decrypt: 17 bytes: 4384
Errors: 0
cryptd(__ctr-aes-ce) cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
ctr-aes-ce cipher
Encrypt: 19 bytes: 5551
Decrypt: 19 bytes: 5551
Errors: 0
cryptd(__cbc-aes-ce) cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
cbc-aes-ce cipher
Encrypt: 19 bytes: 3040
Decrypt: 19 bytes: 3040
Errors: 0
cryptd(__ecb-aes-ce) cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
ecb-aes-ce cipher
Encrypt: 14 bytes: 2624
Decrypt: 14 bytes: 2624
Errors: 0
cbcmac-aes-ce Hash
Hash: 20 bytes: 1244
Errors: 0
xcbc-aes-ce Hash
Hash: 28 bytes: 543
Errors: 0
cmac-aes-ce Hash
Hash: 36 bytes: 1472
Errors: 0
__xts-aes-ce cipher
Encrypt: 17 bytes: 4384
Decrypt: 17 bytes: 4384
Errors: 0
ctr-aes-ce cipher
Encrypt: 19 bytes: 5551
Decrypt: 19 bytes: 5551
Errors: 0
__ctr-aes-ce cipher
Encrypt: 19 bytes: 5551
Decrypt: 19 bytes: 5551
Errors: 0
__cbc-aes-ce cipher
Encrypt: 19 bytes: 3040
Decrypt: 19 bytes: 3040
Errors: 0
__ecb-aes-ce cipher
Encrypt: 14 bytes: 2624
Decrypt: 14 bytes: 2624
Errors: 0
rsa-sun8i-ce Akcipher
Encrypt: 7 bytes: 232
Decrypt: 6 bytes: 1152
Sign: 0
Verify: 5
Errors: 0
sun8i_ce_rng RNG
Seed: 0
Generate: 0 bytes: 0
Errors: 0
ecb(des3_ede-generic) cipher
Encrypt: 24 bytes: 4584
Decrypt: 24 bytes: 4584
Errors: 0
ecb-des3-sun8i-ce cipher
Encrypt: 18 bytes: 3072
Decrypt: 18 bytes: 3072
Errors: 0
cbc(des3_ede-generic) cipher
Encrypt: 14 bytes: 5104
Decrypt: 14 bytes: 5104
Errors: 0
aes-ce cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
des3_ede-generic cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
des-generic cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
aes-arm64 cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
crc32c-arm64-ce Hash
Hash: 92 bytes: 20649
Errors: 0
cbc-des3-sun8i-ce cipher
Encrypt: 10 bytes: 3488
Decrypt: 10 bytes: 3488
Errors: 0
crc32-arm64-ce Hash
Hash: 92 bytes: 20649
Errors: 0
ecb-aes-sun8i-ce cipher
Encrypt: 18 bytes: 3168
Decrypt: 18 bytes: 3168
Errors: 0
cbc-aes-sun8i-ce cipher
Encrypt: 24 bytes: 3712
Decrypt: 24 bytes: 3712
Errors: 0
sha256-ce Hash
Hash: 26 bytes: 8860
Errors: 0
sha224-ce Hash
Hash: 26 bytes: 8860
Errors: 0
cts(cbc-aes-sun8i-ce) cipher
Encrypt: 24 bytes: 956
Decrypt: 24 bytes: 956
Errors: 0
sha224-arm64-neon Hash
Hash: 26 bytes: 8860
Errors: 0
sha256-arm64-neon Hash
Hash: 26 bytes: 8860
Errors: 0
sha224-arm64 Hash
Hash: 26 bytes: 8860
Errors: 0
sha256-arm64 Hash
Hash: 26 bytes: 8860
Errors: 0
ctr-aes-sun8i-ce cipher
Encrypt: 24 bytes: 6738
Decrypt: 24 bytes: 6738
Errors: 0
sha1-ce Hash
Hash: 28 bytes: 9191
Errors: 0
ecdh-generic KPP
Setsecret: 4
Generate public key: 3
Compute_shared_secret: 4
Errors: 0
ghash-generic Hash
Hash: 32 bytes: 4358
Errors: 0
jitterentropy_rng RNG
Seed: 0
Generate: 1 bytes: 48
Errors: 0
drbg_nopr_hmac_sha256 RNG
Seed: 5
Generate: 9 bytes: 1056
Errors: 0
drbg_nopr_hmac_sha512 RNG
Seed: 0
Generate: 0 bytes: 0
Errors: 0
drbg_nopr_hmac_sha384 RNG
Seed: 0
Generate: 0 bytes: 0
Errors: 0
drbg_nopr_hmac_sha1 RNG
Seed: 0
Generate: 0 bytes: 0
Errors: 0
drbg_pr_hmac_sha256 RNG
Seed: 4
Generate: 8 bytes: 1024
Errors: 0
drbg_pr_hmac_sha512 RNG
Seed: 0
Generate: 0 bytes: 0
Errors: 0
drbg_pr_hmac_sha384 RNG
Seed: 0
Generate: 0 bytes: 0
Errors: 0
drbg_pr_hmac_sha1 RNG
Seed: 0
Generate: 0 bytes: 0
Errors: 0
crct10dif-generic Hash
Hash: 24 bytes: 19893
Errors: 0
crc32c-generic Hash
Hash: 92 bytes: 20649
Errors: 0
aes-generic cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
sha224-generic Hash
Hash: 26 bytes: 8860
Errors: 0
sha256-generic Hash
Hash: 26 bytes: 8860
Errors: 0
sha1-generic Hash
Hash: 28 bytes: 9191
Errors: 0
digest_null-generic Hash
Hash: 0 bytes: 0
Errors: 0
compress_null-generic Compress
Compress: 0 bytes: 0
Decompress: 0 bytes: 0
Errors: 0
ecb-cipher_null cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
cipher_null-generic cipher
Encrypt: 0 bytes: 0
Decrypt: 0 bytes: 0
Errors: 0
rsa-generic Akcipher
Encrypt: 17 bytes: 2832
Decrypt: 9 bytes: 1920
Sign: 0
Verify: 36
Errors: 0

Futur possible additions:
- Add a "number of needed fallback" statistics.
- statistics for maximum request size

Please let me know your opinions about it

Regards

Changes since v2:
- added documentation on new struct crypto_alg members.

Changes since v1:
- Do not use anymore CRYPTO_MSG_GETALG and added a dedicated CRYPTO_MSG_GETSTAT

Changes since RFC:
- Use cryptouser(netlink) instead of /sys
- Use atomic_t instead of unsigned long
- moved stat code into dedicated inline function
- spelling fixes

Corentin Labbe (2):
crypto: Implement a generic crypto statistics
crypto: tools: Add cryptostat userspace

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 +++
tools/crypto/getstat.c | 294 +++++++++++++++++
18 files changed, 1264 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
create mode 100644 tools/crypto/getstat.c

--
2.16.4

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