Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

Pull crypto updates from Herbert Xu:
 "Algorithms:

   - Drop alignment requirement for data in aesni

   - Use synchronous seeding from the /dev/random in DRBG

   - Reseed nopr DRBGs every 5 minutes from /dev/random

   - Add KDF algorithms currently used by security/DH

   - Fix lack of entropy on some AMD CPUs with jitter RNG

  Drivers:

   - Add support for the D1 variant in sun8i-ce

   - Add SEV_INIT_EX support in ccp

   - PFVF support for GEN4 host driver in qat

   - Compression support for GEN4 devices in qat

   - Add cn10k random number generator support"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (145 commits)
  crypto: af_alg - rewrite NULL pointer check
  lib/mpi: Add the return value check of kcalloc()
  crypto: qat - fix definition of ring reset results
  crypto: hisilicon - cleanup warning in qm_get_qos_value()
  crypto: kdf - select SHA-256 required for self-test
  crypto: x86/aesni - don't require alignment of data
  crypto: ccp - remove unneeded semicolon
  crypto: stm32/crc32 - Fix kernel BUG triggered in probe()
  crypto: s390/sha512 - Use macros instead of direct IV numbers
  crypto: sparc/sha - remove duplicate hash init function
  crypto: powerpc/sha - remove duplicate hash init function
  crypto: mips/sha - remove duplicate hash init function
  crypto: sha256 - remove duplicate generic hash init function
  crypto: jitter - add oversampling of noise source
  MAINTAINERS: update SEC2 driver maintainers list
  crypto: ux500 - Use platform_get_irq() to get the interrupt
  crypto: hisilicon/qm - disable qm clock-gating
  crypto: omap-aes - Fix broken pm_runtime_and_get() usage
  MAINTAINERS: update caam crypto driver maintainers list
  crypto: octeontx2 - prevent underflow in get_cores_bmap()
  ...

12 files changed, 163 insertions, 12 deletions

diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 5af914c1ab8e..14db3bee0519 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -8,9 +8,10 @@
 #ifndef _CRYPTO_AEAD_H
 #define _CRYPTO_AEAD_H
 
+#include <linux/container_of.h>
 #include <linux/crypto.h>
-#include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/types.h>
 
 /**
  * DOC: Authenticated Encryption With Associated Data (AEAD) Cipher API
@@ -73,6 +74,7 @@
  */
 
 struct crypto_aead;
+struct scatterlist;
 
 /**
  *	struct aead_request - AEAD request
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 5f6841c73e5a..f76ec723ceae 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -7,9 +7,11 @@
 #ifndef _CRYPTO_ALGAPI_H
 #define _CRYPTO_ALGAPI_H
 
+#include <linux/align.h>
 #include <linux/crypto.h>
+#include <linux/kconfig.h>
 #include <linux/list.h>
-#include <linux/kernel.h>
+#include <linux/types.h>
 
 /*
  * Maximum values for blocksize and alignmask, used to allocate
@@ -24,6 +26,7 @@
 struct crypto_aead;
 struct crypto_instance;
 struct module;
+struct notifier_block;
 struct rtattr;
 struct seq_file;
 struct sk_buff;
diff --git a/include/crypto/blake2b.h b/include/crypto/blake2b.h
index 18875f16f8ca..0c0176285349 100644
--- a/include/crypto/blake2b.h
+++ b/include/crypto/blake2b.h
@@ -5,7 +5,6 @@
 
 #include <linux/bug.h>
 #include <linux/types.h>
-#include <linux/kernel.h>
 #include <linux/string.h>
 
 enum blake2b_lengths {
diff --git a/include/crypto/blake2s.h b/include/crypto/blake2s.h
index bc3fb59442ce..df3c6c2f9553 100644
--- a/include/crypto/blake2s.h
+++ b/include/crypto/blake2s.h
@@ -7,8 +7,8 @@
 #define _CRYPTO_BLAKE2S_H
 
 #include <linux/bug.h>
+#include <linux/kconfig.h>
 #include <linux/types.h>
-#include <linux/kernel.h>
 #include <linux/string.h>
 
 enum blake2s_lengths {
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
index 23169f4d87e6..796d986e58e1 100644
--- a/include/crypto/cryptd.h
+++ b/include/crypto/cryptd.h
@@ -13,7 +13,8 @@
 #ifndef _CRYPTO_CRYPT_H
 #define _CRYPTO_CRYPT_H
 
-#include <linux/kernel.h>
+#include <linux/types.h>
+
 #include <crypto/aead.h>
 #include <crypto/hash.h>
 #include <crypto/skcipher.h>
diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index c4165126937e..af5ad51d3eef 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -105,6 +105,12 @@ struct drbg_test_data {
 	struct drbg_string *testentropy; /* TEST PARAMETER: test entropy */
 };
 
+enum drbg_seed_state {
+	DRBG_SEED_STATE_UNSEEDED,
+	DRBG_SEED_STATE_PARTIAL, /* Seeded with !rng_is_initialized() */
+	DRBG_SEED_STATE_FULL,
+};
+
 struct drbg_state {
 	struct mutex drbg_mutex;	/* lock around DRBG */
 	unsigned char *V;	/* internal state 10.1.1.1 1a) */
@@ -127,16 +133,15 @@ struct drbg_state {
 	struct crypto_wait ctr_wait;		/* CTR mode async wait obj */
 	struct scatterlist sg_in, sg_out;	/* CTR mode SGLs */
 
-	bool seeded;		/* DRBG fully seeded? */
+	enum drbg_seed_state seeded;		/* DRBG fully seeded? */
+	unsigned long last_seed_time;
 	bool pr;		/* Prediction resistance enabled? */
 	bool fips_primed;	/* Continuous test primed? */
 	unsigned char *prev;	/* FIPS 140-2 continuous test value */
-	struct work_struct seed_work;	/* asynchronous seeding support */
 	struct crypto_rng *jent;
 	const struct drbg_state_ops *d_ops;
 	const struct drbg_core *core;
 	struct drbg_string test_data;
-	struct random_ready_callback random_ready;
 };
 
 static inline __u8 drbg_statelen(struct drbg_state *drbg)
diff --git a/include/crypto/engine.h b/include/crypto/engine.h
index fd4f2fa23f51..ae133e98d813 100644
--- a/include/crypto/engine.h
+++ b/include/crypto/engine.h
@@ -9,8 +9,10 @@
 
 #include <linux/crypto.h>
 #include <linux/list.h>
-#include <linux/kernel.h>
 #include <linux/kthread.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
 #include <crypto/algapi.h>
 #include <crypto/aead.h>
 #include <crypto/akcipher.h>
@@ -18,6 +20,8 @@
 #include <crypto/skcipher.h>
 #include <crypto/kpp.h>
 
+struct device;
+
 #define ENGINE_NAME_LEN	30
 /*
  * struct crypto_engine - crypto hardware engine
diff --git a/include/crypto/internal/kdf_selftest.h b/include/crypto/internal/kdf_selftest.h
new file mode 100644
index 000000000000..4d03d2af57b7
--- /dev/null
+++ b/include/crypto/internal/kdf_selftest.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (C) 2021, Stephan Mueller <smueller@chronox.de>
+ */
+
+#ifndef _CRYPTO_KDF_SELFTEST_H
+#define _CRYPTO_KDF_SELFTEST_H
+
+#include <crypto/hash.h>
+#include <linux/uio.h>
+
+struct kdf_testvec {
+	unsigned char *key;
+	size_t keylen;
+	unsigned char *ikm;
+	size_t ikmlen;
+	struct kvec info;
+	unsigned char *expected;
+	size_t expectedlen;
+};
+
+static inline int
+kdf_test(const struct kdf_testvec *test, const char *name,
+	 int (*crypto_kdf_setkey)(struct crypto_shash *kmd,
+				  const u8 *key, size_t keylen,
+				  const u8 *ikm, size_t ikmlen),
+	 int (*crypto_kdf_generate)(struct crypto_shash *kmd,
+				    const struct kvec *info,
+				    unsigned int info_nvec,
+				    u8 *dst, unsigned int dlen))
+{
+	struct crypto_shash *kmd;
+	int ret;
+	u8 *buf = kzalloc(test->expectedlen, GFP_KERNEL);
+
+	if (!buf)
+		return -ENOMEM;
+
+	kmd = crypto_alloc_shash(name, 0, 0);
+	if (IS_ERR(kmd)) {
+		pr_err("alg: kdf: could not allocate hash handle for %s\n",
+		       name);
+		kfree(buf);
+		return -ENOMEM;
+	}
+
+	ret = crypto_kdf_setkey(kmd, test->key, test->keylen,
+				test->ikm, test->ikmlen);
+	if (ret) {
+		pr_err("alg: kdf: could not set key derivation key\n");
+		goto err;
+	}
+
+	ret = crypto_kdf_generate(kmd, &test->info, 1, buf, test->expectedlen);
+	if (ret) {
+		pr_err("alg: kdf: could not obtain key data\n");
+		goto err;
+	}
+
+	ret = memcmp(test->expected, buf, test->expectedlen);
+	if (ret)
+		ret = -EINVAL;
+
+err:
+	crypto_free_shash(kmd);
+	kfree(buf);
+	return ret;
+}
+
+#endif /* _CRYPTO_KDF_SELFTEST_H */
diff --git a/include/crypto/kdf_sp800108.h b/include/crypto/kdf_sp800108.h
new file mode 100644
index 000000000000..b7b20a778fb7
--- /dev/null
+++ b/include/crypto/kdf_sp800108.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (C) 2021, Stephan Mueller <smueller@chronox.de>
+ */
+
+#ifndef _CRYPTO_KDF108_H
+#define _CRYPTO_KDF108_H
+
+#include <crypto/hash.h>
+#include <linux/uio.h>
+
+/**
+ * Counter KDF generate operation according to SP800-108 section 5.1
+ * as well as SP800-56A section 5.8.1 (Single-step KDF).
+ *
+ * @kmd Keyed message digest whose key was set with crypto_kdf108_setkey or
+ *	unkeyed message digest
+ * @info optional context and application specific information - this may be
+ *	 NULL
+ * @info_vec number of optional context/application specific information entries
+ * @dst destination buffer that the caller already allocated
+ * @dlen length of the destination buffer - the KDF derives that amount of
+ *	 bytes.
+ *
+ * To comply with SP800-108, the caller must provide Label || 0x00 || Context
+ * in the info parameter.
+ *
+ * @return 0 on success, < 0 on error
+ */
+int crypto_kdf108_ctr_generate(struct crypto_shash *kmd,
+			       const struct kvec *info, unsigned int info_nvec,
+			       u8 *dst, unsigned int dlen);
+
+/**
+ * Counter KDF setkey operation
+ *
+ * @kmd Keyed message digest allocated by the caller. The key should not have
+ *	been set.
+ * @key Seed key to be used to initialize the keyed message digest context.
+ * @keylen This length of the key buffer.
+ * @ikm The SP800-108 KDF does not support IKM - this parameter must be NULL
+ * @ikmlen This parameter must be 0.
+ *
+ * According to SP800-108 section 7.2, the seed key must be at least as large as
+ * the message digest size of the used keyed message digest. This limitation
+ * is enforced by the implementation.
+ *
+ * SP800-108 allows the use of either a HMAC or a hash primitive. When
+ * the caller intends to use a hash primitive, the call to
+ * crypto_kdf108_setkey is not required and the key derivation operation can
+ * immediately performed using crypto_kdf108_ctr_generate after allocating
+ * a handle.
+ *
+ * @return 0 on success, < 0 on error
+ */
+int crypto_kdf108_setkey(struct crypto_shash *kmd,
+			 const u8 *key, size_t keylen,
+			 const u8 *ikm, size_t ikmlen);
+
+#endif /* _CRYPTO_KDF108_H */
diff --git a/include/crypto/pcrypt.h b/include/crypto/pcrypt.h
index b9bc3436196a..234d7cf3cf5e 100644
--- a/include/crypto/pcrypt.h
+++ b/include/crypto/pcrypt.h
@@ -9,8 +9,8 @@
 #ifndef _CRYPTO_PCRYPT_H
 #define _CRYPTO_PCRYPT_H
 
+#include <linux/container_of.h>
 #include <linux/crypto.h>
-#include <linux/kernel.h>
 #include <linux/padata.h>
 
 struct pcrypt_request {
diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
index 7af08174a721..6407b4b61350 100644
--- a/include/crypto/scatterwalk.h
+++ b/include/crypto/scatterwalk.h
@@ -12,8 +12,9 @@
 #define _CRYPTO_SCATTERWALK_H
 
 #include <crypto/algapi.h>
+
 #include <linux/highmem.h>
-#include <linux/kernel.h>
+#include <linux/mm.h>
 #include <linux/scatterlist.h>
 
 static inline void scatterwalk_crypto_chain(struct scatterlist *head,
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index ef0fc9ed4342..39f5b67c3069 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -8,9 +8,13 @@
 #ifndef _CRYPTO_SKCIPHER_H
 #define _CRYPTO_SKCIPHER_H
 
+#include <linux/container_of.h>
 #include <linux/crypto.h>
-#include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+struct scatterlist;
 
 /**
  *	struct skcipher_request - Symmetric key cipher request