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-rw-r--r--include/crypto/acompress.h132
-rw-r--r--include/crypto/aead.h22
-rw-r--r--include/crypto/akcipher.h102
-rw-r--r--include/crypto/algapi.h93
-rw-r--r--include/crypto/hash.h95
-rw-r--r--include/crypto/internal/acompress.h43
-rw-r--r--include/crypto/internal/hash.h2
-rw-r--r--include/crypto/internal/scompress.h15
-rw-r--r--include/crypto/kpp.h73
-rw-r--r--include/crypto/rng.h65
-rw-r--r--include/crypto/skcipher.h22
-rw-r--r--include/crypto/utils.h73
12 files changed, 538 insertions, 199 deletions
diff --git a/include/crypto/acompress.h b/include/crypto/acompress.h
index e4bc96528902..574cffc90730 100644
--- a/include/crypto/acompress.h
+++ b/include/crypto/acompress.h
@@ -8,6 +8,9 @@
*/
#ifndef _CRYPTO_ACOMP_H
#define _CRYPTO_ACOMP_H
+
+#include <linux/atomic.h>
+#include <linux/container_of.h>
#include <linux/crypto.h>
#define CRYPTO_ACOMP_ALLOC_OUTPUT 0x00000001
@@ -53,37 +56,35 @@ struct crypto_acomp {
struct crypto_tfm base;
};
-/**
- * struct acomp_alg - asynchronous compression algorithm
- *
- * @compress: Function performs a compress operation
- * @decompress: Function performs a de-compress operation
- * @dst_free: Frees destination buffer if allocated inside the algorithm
- * @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.
- * @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
- * @base: Common crypto API algorithm data structure
+/*
+ * 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 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;
- struct crypto_alg base;
+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
*
@@ -131,9 +132,10 @@ static inline struct crypto_tfm *crypto_acomp_tfm(struct crypto_acomp *tfm)
return &tfm->base;
}
-static inline struct acomp_alg *__crypto_acomp_alg(struct crypto_alg *alg)
+static inline struct comp_alg_common *__crypto_comp_alg_common(
+ struct crypto_alg *alg)
{
- return container_of(alg, struct acomp_alg, base);
+ return container_of(alg, struct comp_alg_common, base);
}
static inline struct crypto_acomp *__crypto_acomp_tfm(struct crypto_tfm *tfm)
@@ -141,9 +143,10 @@ static inline struct crypto_acomp *__crypto_acomp_tfm(struct crypto_tfm *tfm)
return container_of(tfm, struct crypto_acomp, base);
}
-static inline struct acomp_alg *crypto_acomp_alg(struct crypto_acomp *tfm)
+static inline struct comp_alg_common *crypto_comp_alg_common(
+ struct crypto_acomp *tfm)
{
- return __crypto_acomp_alg(crypto_acomp_tfm(tfm)->__crt_alg);
+ return __crypto_comp_alg_common(crypto_acomp_tfm(tfm)->__crt_alg);
}
static inline unsigned int crypto_acomp_reqsize(struct crypto_acomp *tfm)
@@ -219,7 +222,8 @@ static inline void acomp_request_set_callback(struct acomp_req *req,
{
req->base.complete = cmpl;
req->base.data = data;
- req->base.flags = flgs;
+ req->base.flags &= CRYPTO_ACOMP_ALLOC_OUTPUT;
+ req->base.flags |= flgs & ~CRYPTO_ACOMP_ALLOC_OUTPUT;
}
/**
@@ -246,10 +250,32 @@ static inline void acomp_request_set_params(struct acomp_req *req,
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
*
@@ -262,14 +288,18 @@ 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);
- struct crypto_alg *alg = tfm->base.__crt_alg;
- unsigned int slen = req->slen;
- int ret;
-
- crypto_stats_get(alg);
- ret = tfm->compress(req);
- crypto_stats_compress(slen, ret, alg);
- return ret;
+ 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));
}
/**
@@ -284,14 +314,18 @@ 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);
- struct crypto_alg *alg = tfm->base.__crt_alg;
- unsigned int slen = req->slen;
- int ret;
-
- crypto_stats_get(alg);
- ret = tfm->decompress(req);
- crypto_stats_decompress(slen, ret, alg);
- return ret;
+ 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));
}
#endif
diff --git a/include/crypto/aead.h b/include/crypto/aead.h
index 4a2b7e6e0c1f..35e45b854a6f 100644
--- a/include/crypto/aead.h
+++ b/include/crypto/aead.h
@@ -8,6 +8,7 @@
#ifndef _CRYPTO_AEAD_H
#define _CRYPTO_AEAD_H
+#include <linux/atomic.h>
#include <linux/container_of.h>
#include <linux/crypto.h>
#include <linux/slab.h>
@@ -100,6 +101,22 @@ struct aead_request {
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
@@ -118,6 +135,7 @@ struct aead_request {
* @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
@@ -144,6 +162,10 @@ struct aead_alg {
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;
diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
index 734c213918bd..f35fd653e4e5 100644
--- a/include/crypto/akcipher.h
+++ b/include/crypto/akcipher.h
@@ -7,6 +7,8 @@
*/
#ifndef _CRYPTO_AKCIPHER_H
#define _CRYPTO_AKCIPHER_H
+
+#include <linux/atomic.h>
#include <linux/crypto.h>
/**
@@ -52,6 +54,26 @@ struct crypto_akcipher {
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
*
@@ -88,6 +110,7 @@ struct crypto_akcipher {
* @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
*/
@@ -104,6 +127,10 @@ struct akcipher_alg {
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;
};
@@ -275,6 +302,27 @@ static inline unsigned int crypto_akcipher_maxsize(struct crypto_akcipher *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
*
@@ -289,14 +337,15 @@ 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);
- struct crypto_alg *calg = tfm->base.__crt_alg;
- unsigned int src_len = req->src_len;
- int ret;
-
- crypto_stats_get(calg);
- ret = alg->encrypt(req);
- crypto_stats_akcipher_encrypt(src_len, ret, calg);
- return ret;
+
+ 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));
}
/**
@@ -313,14 +362,15 @@ 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);
- struct crypto_alg *calg = tfm->base.__crt_alg;
- unsigned int src_len = req->src_len;
- int ret;
-
- crypto_stats_get(calg);
- ret = alg->decrypt(req);
- crypto_stats_akcipher_decrypt(src_len, ret, calg);
- return ret;
+
+ 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));
}
/**
@@ -337,13 +387,11 @@ 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);
- struct crypto_alg *calg = tfm->base.__crt_alg;
- int ret;
- crypto_stats_get(calg);
- ret = alg->sign(req);
- crypto_stats_akcipher_sign(ret, calg);
- return ret;
+ if (IS_ENABLED(CONFIG_CRYPTO_STATS))
+ atomic64_inc(&akcipher_get_stat(alg)->sign_cnt);
+
+ return crypto_akcipher_errstat(alg, alg->sign(req));
}
/**
@@ -364,13 +412,11 @@ 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);
- struct crypto_alg *calg = tfm->base.__crt_alg;
- int ret;
- crypto_stats_get(calg);
- ret = alg->verify(req);
- crypto_stats_akcipher_verify(ret, calg);
- return ret;
+ if (IS_ENABLED(CONFIG_CRYPTO_STATS))
+ atomic64_inc(&akcipher_get_stat(alg)->verify_cnt);
+
+ return crypto_akcipher_errstat(alg, alg->verify(req));
}
/**
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index fede394ae2ab..016d5a302b84 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -7,15 +7,12 @@
#ifndef _CRYPTO_ALGAPI_H
#define _CRYPTO_ALGAPI_H
+#include <crypto/utils.h>
#include <linux/align.h>
#include <linux/cache.h>
#include <linux/crypto.h>
-#include <linux/kconfig.h>
-#include <linux/list.h>
#include <linux/types.h>
-#include <asm/unaligned.h>
-
/*
* Maximum values for blocksize and alignmask, used to allocate
* static buffers that are big enough for any combination of
@@ -34,11 +31,25 @@
#define CRYPTO_DMA_PADDING ((CRYPTO_DMA_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
+/*
+ * Autoloaded crypto modules should only use a prefixed name to avoid allowing
+ * arbitrary modules to be loaded. Loading from userspace may still need the
+ * unprefixed names, so retains those aliases as well.
+ * This uses __MODULE_INFO directly instead of MODULE_ALIAS because pre-4.3
+ * gcc (e.g. avr32 toolchain) uses __LINE__ for uniqueness, and this macro
+ * expands twice on the same line. Instead, use a separate base name for the
+ * alias.
+ */
+#define MODULE_ALIAS_CRYPTO(name) \
+ __MODULE_INFO(alias, alias_userspace, name); \
+ __MODULE_INFO(alias, alias_crypto, "crypto-" name)
+
struct crypto_aead;
struct crypto_instance;
struct module;
struct notifier_block;
struct rtattr;
+struct scatterlist;
struct seq_file;
struct sk_buff;
@@ -50,6 +61,9 @@ struct crypto_type {
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;
@@ -119,6 +133,14 @@ struct crypto_attr_type {
u32 mask;
};
+/*
+ * Algorithm registration interface.
+ */
+int crypto_register_alg(struct crypto_alg *alg);
+void crypto_unregister_alg(struct crypto_alg *alg);
+int crypto_register_algs(struct crypto_alg *algs, int count);
+void crypto_unregister_algs(struct crypto_alg *algs, int count);
+
void crypto_mod_put(struct crypto_alg *alg);
int crypto_register_template(struct crypto_template *tmpl);
@@ -156,47 +178,6 @@ static inline unsigned int crypto_queue_len(struct crypto_queue *queue)
}
void crypto_inc(u8 *a, unsigned int size);
-void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int size);
-
-static inline void crypto_xor(u8 *dst, const u8 *src, unsigned int size)
-{
- if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
- __builtin_constant_p(size) &&
- (size % sizeof(unsigned long)) == 0) {
- unsigned long *d = (unsigned long *)dst;
- unsigned long *s = (unsigned long *)src;
- unsigned long l;
-
- while (size > 0) {
- l = get_unaligned(d) ^ get_unaligned(s++);
- put_unaligned(l, d++);
- size -= sizeof(unsigned long);
- }
- } else {
- __crypto_xor(dst, dst, src, size);
- }
-}
-
-static inline void crypto_xor_cpy(u8 *dst, const u8 *src1, const u8 *src2,
- unsigned int size)
-{
- if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
- __builtin_constant_p(size) &&
- (size % sizeof(unsigned long)) == 0) {
- unsigned long *d = (unsigned long *)dst;
- unsigned long *s1 = (unsigned long *)src1;
- unsigned long *s2 = (unsigned long *)src2;
- unsigned long l;
-
- while (size > 0) {
- l = get_unaligned(s1++) ^ get_unaligned(s2++);
- put_unaligned(l, d++);
- size -= sizeof(unsigned long);
- }
- } else {
- __crypto_xor(dst, src1, src2, size);
- }
-}
static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
{
@@ -275,23 +256,6 @@ static inline u32 crypto_algt_inherited_mask(struct crypto_attr_type *algt)
return crypto_requires_off(algt, CRYPTO_ALG_INHERITED_FLAGS);
}
-noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
-
-/**
- * crypto_memneq - Compare two areas of memory without leaking
- * timing information.
- *
- * @a: One area of memory
- * @b: Another area of memory
- * @size: The size of the area.
- *
- * Returns 0 when data is equal, 1 otherwise.
- */
-static inline int crypto_memneq(const void *a, const void *b, size_t size)
-{
- return __crypto_memneq(a, b, size) != 0UL ? 1 : 0;
-}
-
int crypto_register_notifier(struct notifier_block *nb);
int crypto_unregister_notifier(struct notifier_block *nb);
@@ -308,4 +272,9 @@ static inline void crypto_request_complete(struct crypto_async_request *req,
req->complete(req->data, err);
}
+static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
+{
+ return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
+}
+
#endif /* _CRYPTO_ALGAPI_H */
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index f5841992dc9b..e69542d86a2b 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -8,6 +8,7 @@
#ifndef _CRYPTO_HASH_H
#define _CRYPTO_HASH_H
+#include <linux/atomic.h>
#include <linux/crypto.h>
#include <linux/string.h>
@@ -22,8 +23,27 @@ struct crypto_ahash;
* 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,
@@ -39,12 +59,15 @@ struct crypto_ahash;
* The hash_alg_common data structure now adds the hash-specific
* information.
*/
-struct hash_alg_common {
- unsigned int digestsize;
- unsigned int statesize;
-
- struct crypto_alg base;
-};
+#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;
@@ -129,6 +152,7 @@ struct ahash_request {
* @exit_tfm: Deinitialize the cryptographic transformation object.
* This is a counterpart to @init_tfm, used to remove
* various changes set in @init_tfm.
+ * @clone_tfm: Copy transform into new object, may allocate memory.
* @halg: see struct hash_alg_common
*/
struct ahash_alg {
@@ -143,6 +167,7 @@ struct ahash_alg {
unsigned int keylen);
int (*init_tfm)(struct crypto_ahash *tfm);
void (*exit_tfm)(struct crypto_ahash *tfm);
+ int (*clone_tfm)(struct crypto_ahash *dst, struct crypto_ahash *src);
struct hash_alg_common halg;
};
@@ -160,8 +185,6 @@ struct shash_desc {
*/
#define HASH_MAX_DESCSIZE (sizeof(struct shash_desc) + 360)
-#define HASH_MAX_STATESIZE 512
-
#define SHASH_DESC_ON_STACK(shash, ctx) \
char __##shash##_desc[sizeof(struct shash_desc) + HASH_MAX_DESCSIZE] \
__aligned(__alignof__(struct shash_desc)); \
@@ -188,12 +211,16 @@ struct shash_desc {
* @exit_tfm: Deinitialize the cryptographic transformation object.
* This is a counterpart to @init_tfm, used to remove
* various changes set in @init_tfm.
+ * @clone_tfm: Copy transform into new object, may allocate memory.
* @digestsize: see struct ahash_alg
* @statesize: see struct ahash_alg
* @descsize: Size of the operational state for the message digest. This state
* size is the memory size that needs to be allocated for
* shash_desc.__ctx
+ * @stat: Statistics for hash algorithm.
* @base: internally used
+ * @halg: see struct hash_alg_common
+ * @HASH_ALG_COMMON: see struct hash_alg_common
*/
struct shash_alg {
int (*init)(struct shash_desc *desc);
@@ -210,16 +237,17 @@ struct shash_alg {
unsigned int keylen);
int (*init_tfm)(struct crypto_shash *tfm);
void (*exit_tfm)(struct crypto_shash *tfm);
+ int (*clone_tfm)(struct crypto_shash *dst, struct crypto_shash *src);
unsigned int descsize;
- /* These fields must match hash_alg_common. */
- unsigned int digestsize
- __attribute__ ((aligned(__alignof__(struct hash_alg_common))));
- unsigned int statesize;
-
- struct crypto_alg base;
+ union {
+ struct HASH_ALG_COMMON;
+ struct hash_alg_common halg;
+ };
};
+#undef HASH_ALG_COMMON
+#undef HASH_ALG_COMMON_STAT
struct crypto_ahash {
int (*init)(struct ahash_request *req);
@@ -273,6 +301,8 @@ static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
u32 mask);
+struct crypto_ahash *crypto_clone_ahash(struct crypto_ahash *tfm);
+
static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
{
return &tfm->base;
@@ -535,6 +565,27 @@ static inline int crypto_ahash_init(struct ahash_request *req)
return tfm->init(req);
}
+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_errstat(struct hash_alg_common *alg, int err)
+{
+ if (!IS_ENABLED(CONFIG_CRYPTO_STATS))
+ return err;
+
+ if (err && err != -EINPROGRESS && err != -EBUSY)
+ atomic64_inc(&hash_get_stat(alg)->err_cnt);
+
+ return err;
+}
+
/**
* crypto_ahash_update() - add data to message digest for processing
* @req: ahash_request handle that was previously initialized with the
@@ -549,14 +600,12 @@ static inline int crypto_ahash_init(struct ahash_request *req)
static inline int crypto_ahash_update(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct crypto_alg *alg = tfm->base.__crt_alg;
- unsigned int nbytes = req->nbytes;
- int ret;
+ struct hash_alg_common *alg = crypto_hash_alg_common(tfm);
+
+ if (IS_ENABLED(CONFIG_CRYPTO_STATS))
+ atomic64_add(req->nbytes, &hash_get_stat(alg)->hash_tlen);
- crypto_stats_get(alg);
- ret = crypto_ahash_reqtfm(req)->update(req);
- crypto_stats_ahash_update(nbytes, ret, alg);
- return ret;
+ return crypto_hash_errstat(alg, tfm->update(req));
}
/**
@@ -718,6 +767,8 @@ static inline void ahash_request_set_crypt(struct ahash_request *req,
struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type,
u32 mask);
+struct crypto_shash *crypto_clone_shash(struct crypto_shash *tfm);
+
int crypto_has_shash(const char *alg_name, u32 type, u32 mask);
static inline struct crypto_tfm *crypto_shash_tfm(struct crypto_shash *tfm)
diff --git a/include/crypto/internal/acompress.h b/include/crypto/internal/acompress.h
index 978b57a3f4f0..4ac46bafba9d 100644
--- a/include/crypto/internal/acompress.h
+++ b/include/crypto/internal/acompress.h
@@ -12,6 +12,44 @@
#include <crypto/acompress.h>
#include <crypto/algapi.h>
+/**
+ * struct acomp_alg - asynchronous compression algorithm
+ *
+ * @compress: Function performs a compress operation
+ * @decompress: Function performs a de-compress operation
+ * @dst_free: Frees destination buffer if allocated inside the algorithm
+ * @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.
+ * @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;
+ };
+};
+
/*
* Transform internal helpers.
*/
@@ -31,11 +69,6 @@ static inline void acomp_request_complete(struct acomp_req *req,
crypto_request_complete(&req->base, err);
}
-static inline const char *acomp_alg_name(struct crypto_acomp *tfm)
-{
- return crypto_acomp_tfm(tfm)->__crt_alg->cra_name;
-}
-
static inline struct acomp_req *__acomp_request_alloc(struct crypto_acomp *tfm)
{
struct acomp_req *req;
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 0b259dbb97af..37edf3f4e8af 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -133,8 +133,6 @@ int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
int shash_ahash_finup(struct ahash_request *req, struct shash_desc *desc);
int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
-int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
-
static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
{
return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
diff --git a/include/crypto/internal/scompress.h b/include/crypto/internal/scompress.h
index 252cc949d4ee..858fe3965ae3 100644
--- a/include/crypto/internal/scompress.h
+++ b/include/crypto/internal/scompress.h
@@ -9,10 +9,13 @@
#ifndef _CRYPTO_SCOMP_INT_H
#define _CRYPTO_SCOMP_INT_H
+#include <crypto/acompress.h>
#include <crypto/algapi.h>
#define SCOMP_SCRATCH_SIZE 131072
+struct acomp_req;
+
struct crypto_scomp {
struct crypto_tfm base;
};
@@ -24,7 +27,9 @@ struct crypto_scomp {
* @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);
@@ -35,7 +40,11 @@ struct scomp_alg {
int (*decompress)(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx);
- struct crypto_alg base;
+
+ union {
+ struct COMP_ALG_COMMON;
+ struct comp_alg_common calg;
+ };
};
static inline struct scomp_alg *__crypto_scomp_alg(struct crypto_alg *alg)
@@ -90,10 +99,6 @@ static inline int crypto_scomp_decompress(struct crypto_scomp *tfm,
ctx);
}
-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);
-
/**
* crypto_register_scomp() -- Register synchronous compression algorithm
*
diff --git a/include/crypto/kpp.h b/include/crypto/kpp.h
index 33ff32878802..1988e24a0d1d 100644
--- a/include/crypto/kpp.h
+++ b/include/crypto/kpp.h
@@ -8,7 +8,11 @@
#ifndef _CRYPTO_KPP_
#define _CRYPTO_KPP_
+
+#include <linux/atomic.h>
+#include <linux/container_of.h>
#include <linux/crypto.h>
+#include <linux/slab.h>
/**
* struct kpp_request
@@ -47,6 +51,20 @@ struct crypto_kpp {
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
*
@@ -69,6 +87,7 @@ struct crypto_kpp {
* @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,
@@ -81,6 +100,10 @@ struct kpp_alg {
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;
};
@@ -268,6 +291,26 @@ struct kpp_secret {
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
*
@@ -287,13 +330,11 @@ 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);
- struct crypto_alg *calg = tfm->base.__crt_alg;
- int ret;
- crypto_stats_get(calg);
- ret = alg->set_secret(tfm, buffer, len);
- crypto_stats_kpp_set_secret(calg, ret);
- return ret;
+ 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));
}
/**
@@ -313,13 +354,11 @@ 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);
- struct crypto_alg *calg = tfm->base.__crt_alg;
- int ret;
- crypto_stats_get(calg);
- ret = alg->generate_public_key(req);
- crypto_stats_kpp_generate_public_key(calg, ret);
- return ret;
+ 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));
}
/**
@@ -336,13 +375,11 @@ 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);
- struct crypto_alg *calg = tfm->base.__crt_alg;
- int ret;
- crypto_stats_get(calg);
- ret = alg->compute_shared_secret(req);
- crypto_stats_kpp_compute_shared_secret(calg, ret);
- return ret;
+ 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));
}
/**
diff --git a/include/crypto/rng.h b/include/crypto/rng.h
index 17bb3673d3c1..6abe5102e5fb 100644
--- a/include/crypto/rng.h
+++ b/include/crypto/rng.h
@@ -9,10 +9,26 @@
#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
*
@@ -30,6 +46,7 @@ struct crypto_rng;
* 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
@@ -46,6 +63,10 @@ struct rng_alg {
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;
@@ -94,6 +115,11 @@ static inline struct crypto_tfm *crypto_rng_tfm(struct crypto_rng *tfm)
return &tfm->base;
}
+static inline struct rng_alg *__crypto_rng_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct rng_alg, base);
+}
+
/**
* crypto_rng_alg - obtain name of RNG
* @tfm: cipher handle
@@ -104,8 +130,7 @@ static inline struct crypto_tfm *crypto_rng_tfm(struct crypto_rng *tfm)
*/
static inline struct rng_alg *crypto_rng_alg(struct crypto_rng *tfm)
{
- return container_of(crypto_rng_tfm(tfm)->__crt_alg,
- struct rng_alg, base);
+ return __crypto_rng_alg(crypto_rng_tfm(tfm)->__crt_alg);
}
/**
@@ -119,6 +144,26 @@ 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
@@ -137,13 +182,17 @@ static inline int crypto_rng_generate(struct crypto_rng *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int dlen)
{
- struct crypto_alg *alg = tfm->base.__crt_alg;
- int ret;
+ 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);
+ }
- crypto_stats_get(alg);
- ret = crypto_rng_alg(tfm)->generate(tfm, src, slen, dst, dlen);
- crypto_stats_rng_generate(alg, dlen, ret);
- return ret;
+ return crypto_rng_errstat(alg,
+ alg->generate(tfm, src, slen, dst, dlen));
}
/**
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index 39f5b67c3069..080d1ba3611d 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -8,6 +8,7 @@
#ifndef _CRYPTO_SKCIPHER_H
#define _CRYPTO_SKCIPHER_H
+#include <linux/atomic.h>
#include <linux/container_of.h>
#include <linux/crypto.h>
#include <linux/slab.h>
@@ -48,6 +49,22 @@ struct crypto_sync_skcipher {
struct crypto_skcipher 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;
+};
+
/**
* struct skcipher_alg - symmetric key cipher definition
* @min_keysize: Minimum key size supported by the transformation. This is the
@@ -101,6 +118,7 @@ struct crypto_sync_skcipher {
* @walksize: Equal to the chunk size except in cases where the algorithm is
* considerably more efficient if it can operate on multiple chunks
* in parallel. Should be a multiple of chunksize.
+ * @stat: Statistics for cipher algorithm
* @base: Definition of a generic crypto algorithm.
*
* All fields except @ivsize are mandatory and must be filled.
@@ -119,6 +137,10 @@ struct skcipher_alg {
unsigned int chunksize;
unsigned int walksize;
+#ifdef CONFIG_CRYPTO_STATS
+ struct crypto_istat_cipher stat;
+#endif
+
struct crypto_alg base;
};
diff --git a/include/crypto/utils.h b/include/crypto/utils.h
new file mode 100644
index 000000000000..acbb917a00c6
--- /dev/null
+++ b/include/crypto/utils.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Cryptographic utilities
+ *
+ * Copyright (c) 2023 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+#ifndef _CRYPTO_UTILS_H
+#define _CRYPTO_UTILS_H
+
+#include <asm/unaligned.h>
+#include <linux/compiler_attributes.h>
+#include <linux/types.h>
+
+void __crypto_xor(u8 *dst, const u8 *src1, const u8 *src2, unsigned int size);
+
+static inline void crypto_xor(u8 *dst, const u8 *src, unsigned int size)
+{
+ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
+ __builtin_constant_p(size) &&
+ (size % sizeof(unsigned long)) == 0) {
+ unsigned long *d = (unsigned long *)dst;
+ unsigned long *s = (unsigned long *)src;
+ unsigned long l;
+
+ while (size > 0) {
+ l = get_unaligned(d) ^ get_unaligned(s++);
+ put_unaligned(l, d++);
+ size -= sizeof(unsigned long);
+ }
+ } else {
+ __crypto_xor(dst, dst, src, size);
+ }
+}
+
+static inline void crypto_xor_cpy(u8 *dst, const u8 *src1, const u8 *src2,
+ unsigned int size)
+{
+ if (IS_ENABLED(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) &&
+ __builtin_constant_p(size) &&
+ (size % sizeof(unsigned long)) == 0) {
+ unsigned long *d = (unsigned long *)dst;
+ unsigned long *s1 = (unsigned long *)src1;
+ unsigned long *s2 = (unsigned long *)src2;
+ unsigned long l;
+
+ while (size > 0) {
+ l = get_unaligned(s1++) ^ get_unaligned(s2++);
+ put_unaligned(l, d++);
+ size -= sizeof(unsigned long);
+ }
+ } else {
+ __crypto_xor(dst, src1, src2, size);
+ }
+}
+
+noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
+
+/**
+ * crypto_memneq - Compare two areas of memory without leaking
+ * timing information.
+ *
+ * @a: One area of memory
+ * @b: Another area of memory
+ * @size: The size of the area.
+ *
+ * Returns 0 when data is equal, 1 otherwise.
+ */
+static inline int crypto_memneq(const void *a, const void *b, size_t size)
+{
+ return __crypto_memneq(a, b, size) != 0UL ? 1 : 0;
+}
+
+#endif /* _CRYPTO_UTILS_H */
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-21 18:54:23 +0000